JP6606674B2 - New printer or copy facilities - Google Patents

Description

The present invention relates to the office equipment field, and in particular, to a new type of printer or copying equipment.

When using a printer or copier, you need to use a paper tray to store the paper, you can adjust the regular paper tray, use different types of paper, and some printers have many paper trays for convenient printing It is possible to replace different paper holders, open the current paper holder manually, the paper holder is fragile in the process of pulling out, the size of the space in the paper holder cannot be adjusted, the angle of the doctor blade does not change, the paper Easily clogged.

Chinese Patent Application No. 105291425

The present invention provides a new type of printer or copy facility for the necessary technical problems to be solved, which can solve the current technical problems.

A new printer or copy facility according to the present invention includes a main base and an arm fixedly installed at the bottom of the main base. A space is installed in the main base, and a first is formed on the inner top wall of the space . A cavity is installed, a first sliding connection housing is installed on the main base on the left side of the first cavity, a first guide connection groove is installed on the inner bottom wall of the space , and the first guide connection groove The first guide connection block is slidably engaged and connected, and a first screw connection lever installed to extend to the left and right is connected to the first guide connection block with a screw. A sliding block inserted into the space is slidably engaged with and connected to the right end surface of the body, and the position close to the left edge of the bottom of the sliding block is the bottom end surface of the first guide connection block fixedly engaged to connect the second guide connected to the left inner wall of the space and Is installed, and a second sliding connection casing is installed to extend upward on the left inner wall of the second guide connection groove, and the top extension end of the second sliding connection casing is the first sliding connection casing of installed so as to connect the bottom end, the second guide connecting block to said second guide connection groove is connected engages so as to be slidable, into the space to the right end of the second guide connecting block An oblique side block to be inserted is fixedly installed, and a guide connection lever installed extending vertically is connected to the second guide connection block so as to be slidable, and an upper side of the second guide connection block. A compression spring is rotatably installed on an outer surface of the guide connection lever, and a first slide connection block is slidably engaged with and connected to the second slide connection housing; Approach the bottom position of the right end face of the sliding connection block Is fixedly engaged with and connected to the left terminal end of the second guide connection block, a hypotenuse is fixedly installed on the top of the first slide connection block, and a second slip connection is made to the first slide connection housing. The blocks are slidably engaged and connected, and a tension spring is fixedly installed between the left end of the second sliding connection block and the left inner wall of the first sliding connection housing, A hypotenuse groove is installed on the bottom end face of the sliding connection block so as to be slidably engaged with the hypotenuse, and the first inner spline column can rotate on the right end face of the second sliding connection block. The first electric rotating machine is connected to the left end of the first inner spline column so that power can be transmitted, and the outer surface of the first electric rotating machine is connected to the first inner spline. To the second sliding connection block on the left side of the pillar A first exchange shaft, which is fixedly installed and extends to the left and right in a portion between the first sliding connection housing and the first cavity, is rotatably engaged and connected, and the first exchange A first outer spline column that is inserted into the first sliding connection housing is fixedly installed at the left end of the shaft, and a mounting seat that is inserted into the first cavity is fixedly installed at the right end of the first exchange shaft. A doctor blade component is fixedly installed on the bottom of the mounting seat, and a mounting device is installed outside the first electric rotating machine.

The left extension end of the first screw connection lever is engaged and connected to the second electric rotating machine so that power can be transmitted, and the outer surface of the second electric rotating machine is connected to the left inner wall of the first guide connecting groove. It is fixedly installed, and the right end of the first screw connection lever is rotatably engaged with and connected to the right inner wall of the first guide connection groove. It is fixedly engaged with and connected to the upper and lower inner walls of the second guide connection groove.

Slope housing is engaged connected the oblique block and pressing the left end surface of the sliding block as other technical solutions to allow slide is installed, mounting housing is placed on the top end surface of the sliding block A conductive housing is installed on the sliding block below the mounting housing, and a storage plate is slidably engaged with the mounting housing and connected to the bottom end surface of the storage plate. A tube that extends downward is fixedly installed, and a second screw connection lever that extends downward is connected to the tube by engaging with a screw, and is connected to the inner top wall of the conductive housing. A first conical pulley is rotatably engaged and connected, and a bottom extension end of the second screw connection lever is engaged and connected to transmit power to the top end of the first conical pulley. , the installation of extending to the left and right on the sliding block on the left side of the conductive housing Second replacement shaft is engaged connected so as to be rotatable, the second outer spline pillar extending in the left end surface outside of the sliding block on the left end of the second exchanger shaft is disposed, the second exchange-axis that A second conical pulley, which is engaged and connected so as to be able to transmit power, is fixedly installed at the right end of the first conical pulley inserted into the transmission housing, and the second outer spline column is the second female spline grooves are engaged connected so as to be rotatable left inner wall of the corresponding space, the left end of the second female spline grooves engaged connected so as to be transmitted third motor and the power is The outer surface of the third motor is fixedly installed in the left inner wall of the space on the left side of the second female spline groove .

As another technical solution, the mounting device includes a shock absorbing composite plate and a cooling iron piece, and the shock absorbing composite plate is installed at an upper end and a lower end of the first electric rotating machine and fixedly connected to the first electric rotating machine. The cooling iron pieces are installed at the front and rear ends of the first electric rotating machine and fixedly connected to the first electric rotating machine.

The beneficial effect of the present invention is that the structure of the present invention is simple and convenient to operate, the necessary paper to be used is placed on top of the storage plate of the mounting housing, and then the second electric rotating machine is controlled. Rotates in conjunction with one screw connection lever, and the first screw connection lever slides to the left of the first guide connection groove in conjunction with the first guide connection block, and at the same time, the first guide connection block interlocks with the sliding block. to insert the space, when the first guide connection block slides to the leftmost position of the first guide connecting groove, first guide connection blocks insert completely the space in conjunction with the sliding block, at the same time, The slanted side housing is engaged with the slanted side block so that it can slide, and at the same time, the second outer spline column at the left end of the sliding block is engaged with the second female spline groove so that power can be completely transmitted. The hypotenuse block is connected to the second guide connection block. Interlock with the compression spring to overcome the pressing force of the compression spring and slide to the topmost position of the second guide connection groove. At the same time, the hypotenuse block slides to the topmost position of the hypotenuse housing. At this time, the second guide connection block Is engaged in such a way that it can be pressed and slidably interlocked with the hypotenuse part and hypotenuse groove at the top of the first sliding connection block, and the hypotenuse part interlocks with the second sliding connection block to the maximum extent The first inner spline column and the first outer spline column are engaged and connected so that power can be completely transmitted . Three motors control the second female spline groove and rotate in conjunction with the second outer spline post, second exchange shaft and second conical pulley, the second conical pulley is connected to the first conical pulley and the second screw Second screw connection lever that rotates in conjunction with the lever The first electric rotating machine controls the first inner spline column, the first outer spline column, and the first exchange shaft to rotate and move the first exchange shaft by moving up and down and sliding in conjunction with the storage plate at the top of the tube. The shaft adjusts the angle in conjunction with the doctor blade part at the bottom of the mounting seat, thereby improving the convenience of use, preventing paper jamming, and realizing automatic control lifting and lowering work. Satisfied and greatly improved work efficiency.

The beneficial effect of the present invention is that the structure of the present invention is simple and convenient to operate, the necessary paper to be used is placed on top of the storage plate of the mounting housing, and then the second electric rotating machine is controlled. Rotates in conjunction with one screw connection lever, and the first screw connection lever slides to the left of the first guide connection groove in conjunction with the first guide connection block, and at the same time, the first guide connection block interlocks with the sliding block. to insert the space, when the first guide connection block slides to the leftmost position of the first guide connecting groove, first guide connection blocks insert completely the space in conjunction with the sliding block, at the same time, The slanted side housing is engaged with the slanted side block so that it can slide, and at the same time, the second outer spline column at the left end of the sliding block is engaged with the second female spline groove so that power can be completely transmitted. The hypotenuse block is connected to the second guide connection block. Interlock with the compression spring to overcome the pressing force of the compression spring and slide to the topmost position of the second guide connection groove. At the same time, the hypotenuse block slides to the topmost position of the hypotenuse housing. At this time, the second guide connection block Is engaged in such a way that it can be pressed and slidably interlocked with the hypotenuse part and hypotenuse groove at the top of the first sliding connection block, and the hypotenuse part interlocks with the second sliding connection block to the maximum extent The first inner spline column and the first outer spline column are engaged and connected so that power can be completely transmitted . Three motors control the second female spline groove and rotate in conjunction with the second outer spline post, second exchange shaft and second conical pulley, the second conical pulley is connected to the first conical pulley and the second screw Second screw connection lever that rotates in conjunction with the lever The first electric rotating machine controls the first inner spline column, the first outer spline column, and the first exchange shaft to rotate and move the first exchange shaft by moving up and down and sliding in conjunction with the storage plate at the top of the tube. The shaft adjusts the angle in conjunction with the doctor blade part at the bottom of the mounting seat, thereby improving the convenience of use, preventing paper jamming, and realizing automatic control lifting and lowering work. Satisfied and greatly improved work efficiency.

FIG. 1 is a schematic diagram of the overall external structure of a new type printer or copy facility of the present invention. FIG. 2 is a schematic diagram of the internal structure of the base body of the present invention. FIG. 3 is a schematic structural view of the mounting seat of the present invention. FIG. 4 is a schematic structural view of the mounting apparatus of the present invention.

The present invention will be described in detail with reference to FIGS.

1 to 4, a new printer or copying apparatus according to an embodiment of the present invention includes a main base 6 and a brace 7 fixedly installed at the bottom of the main base 6, and the main base 6 the space 61 is installed, the is installed first cavity 62 to the inner top wall of the space 61, the first sliding connecting housing 63 is installed in the main base body 6 on the left side of the first cavity 62, the space A first guide connection groove 611 is installed on the inner bottom wall of 61, and the first guide connection block 613 is slidably engaged with and connected to the first guide connection groove 611, and the first guide connection block A first screw connecting lever 612 installed to extend to the left and right of 613 is engaged and connected with a screw so that the sliding block 5 inserted into the space 61 can slide on the right end surface of the main base 6. connected engage, secured to the bottom end surface of the sliding block 5 of the bottom of the left edge the closer place within section first guide connection block 613 The engaging and connecting said second guide connecting groove 64 to the left inner wall of the space 61 is installed, the second sliding connection housing 65 which is disposed extending up to the left inner wall of the second guide connection groove 64 Is installed such that the top extension end of the second sliding connection housing 65 is connected to the bottom end of the first sliding connection housing 63, and a second guide connection block 641 is provided in the second guide connection groove 64. A slanted side block 642 that is slidably engaged and connected and is inserted into the space 61 at the right end of the second guide connection block 641 is fixedly installed, and is vertically connected to the second guide connection block 641. An extended guide connection lever 643 is slidably engaged and connected so that the compression spring 644 can rotate on the outer surface of the guide connection lever 643 above the second guide connection block 641. The first sliding connection block 651 is slidable in the second sliding connection housing 65. The first sliding connection block 651 is connected and fixedly engaged with and connected to the left terminal end of the second guide connection block 641 at a position approaching the bottom position of the right end surface of the first sliding connection block 651. A hypotenuse 652 is fixedly installed on the top of the sliding connection block 651, and the second sliding connection block 631 is slidably engaged with and connected to the first sliding connection housing 63. A tension spring 633 is fixedly installed between the left end of the connection block 631 and the left inner wall of the first sliding connection housing 63, and the slant side portion 652 is pressed against the bottom end surface of the second sliding connection block 631. An oblique groove 632 that is movably engaged and connected is installed, and a first inner spline pillar 635 is rotatably engaged and connected to the right end surface of the second sliding connection block 631, The first electric rotating machine 634 is powered by the left end of the inner spline pillar 635. The outer surface of the first electric rotating machine 634 is fixedly installed on the second sliding connection block 631 on the left side of the first inner spline post 635, and the first sliding connection housing A first exchange shaft 636 extending in the left-right direction is connected to a portion between 63 and the first cavity 62 so as to be rotatable, and is connected to the left end of the first exchange shaft 636. A first outer spline column 637 to be inserted into the connection housing 63 is fixedly installed, and a mounting seat 621 to be inserted into the first cavity 62 is fixedly installed at the right end of the first exchange shaft 636, and the mounting A doctor blade component 622 is fixedly installed at the bottom of the seat 621, and a mounting device is installed outside the first electric rotating machine 634.

Preferably, the left extension end of the first screw connecting lever 612 is engaged and connected to the second electric rotating machine 614 so that power can be transmitted, and the outer surface of the second electric rotating machine 614 is connected to the first guiding connection. Fixedly mounted on the left inner wall of the groove 611, the right end of the first screw connection lever 612 is rotatably engaged with and connected to the right inner wall of the first guide connection groove 611, and the guide connection lever 643 The extended ends on both the upper and lower sides are fixedly engaged with and connected to the upper and lower inner walls of the second guide connection groove 64, respectively, thereby improving the operational stability of the apparatus.

Preferably said oblique side block 642 and the pressing slant housing 52 which is engaged connected so as to be slidable in the left end surface of the sliding block 5 is placed, the top end surface mounting housing 51 of the sliding blocks 5 Is installed, a conductive casing 53 is installed on the sliding block 5 below the mounting casing 51, and a storage plate 511 is slidably engaged with and connected to the mounting casing 51, A tube 512 that is installed to extend downward to the bottom end surface of the storage plate 511 is fixedly installed, and a second screw connection lever 513 that is installed to extend downward to the tube 512 is engaged and connected with a screw. The first conical pulley 531 is rotatably engaged with and connected to the inner top wall of the conductive casing 53, and the bottom extended end of the second screw connection lever 513 is connected to the first conical pulley 531. top end and power is engaged connected so as to be transmitted, said sliding blocks left of the conductive housing 53 5 second exchange shaft 533 which is installed to extend in the left and right are engaged connected so as to be rotatable, the second outer extending left end surface outside of the sliding block 5 to the left end of the second exchange shaft 533 A second conical shape in which a spline post 634 is installed and engaged with and connected to the first conical pulley 531 inserted into the conductive casing 53 at the right end of the second exchange shaft 533 so that power can be transmitted. A pulley 532 is fixedly installed, and a second female spline groove 615 is rotatably engaged with and connected to the left inner wall of the space 61 to which the second outer spline pillar 634 corresponds, and the second female spline groove The left end of 615 is engaged with and connected to the third motor 666 so that power can be transmitted, and the outer surface of the third motor 666 is in the left inner wall of the space 61 on the left side of the second female spline groove 615. fixedly disposed on, thereby automatically controlling the elevation operations of the storage plate 511, Meet the work demand of the put, greatly enhances the efficiency of the work.

Preferably, the mounting device includes a shock absorbing composite plate 6341 and a cooling iron piece 6342, and the shock absorbing composite plate 6341 is installed at an upper end and a lower end of the first electric rotating machine 634 so as to be fixed to the first electric rotating machine 634. The cooling iron piece 6342 is installed at the front end and the rear end of the first electric rotating machine 634 and fixedly connected to the first electric rotating machine 634, and the cooling iron piece 6342 is connected to the first electric rotating machine 634. Absorbs and dissipates the amount of heat generated during operation, and the shock absorbing composite plate 6341 reduces the vibration force generated when the electric rotating machine 634 operates, preventing the vibration from being excessively large and causing the device to vibrate. .

In the initial state, the right extension end of the sliding block 5 extends to the outside of the right end surface of the main base 6 to the maximum extent. At this time, the mounting housing 51 on the top end surface of the sliding block 5 is completely the main base. 6 at the same time, the first guide connection block 613 is located at the rightmost position of the first guide connection groove 611, and at this time, the second guide connection block 641 is under the pressing force of the compression spring 644. Slide to the bottom position of the second guide connection groove 64, and at the same time, the second guide connection block 641 is interlocked with the first slide connection block 651 to the maximum position of the second slide connection housing 65. At this time, the second guide connection block 641 is fully inserted into the second slide connection housing 65 in conjunction with the hypotenuse 652, and at the same time, the second slide connection block 631 is under the extension force of the extension spring 633. Move to the left side position of the first sliding connection housing 63 to the maximum extent, and at this time the second sliding Continued block 631 away from the first outer spline column 637 about the maximum in conjunction with the first internal splines column 635.

When using, the necessary paper to be used is placed on the top of the storage plate 511 of the mounting housing 51, and then the second electric rotating machine 614 is controlled to rotate in conjunction with the first screw connection lever 612. The screw connection lever 612 slides in the left direction of the first guide connection groove 611 in conjunction with the first guide connection block 613, and at the same time, the first guide connection block 613 is inserted into the space 61 in conjunction with the slide block 5, When the first guide connection block 613 slides to the leftmost position of the first guide connection groove 611, the first guide connection block 613 is completely inserted into the space 61 in conjunction with the slide block 5, and at the same time, the oblique side housing The body 52 is pressed and slidably engaged with the hypotenuse block 642 so that the second outer spline column 534 at the left end of the sliding block 5 can completely transmit power to the second female spline groove 615. Engage and connect, hypotenuse block 642 and second guide connection block 641 It moves to overcome the pressing force of the compression spring 644 and slides to the topmost position of the second guide connection groove 64. At the same time, the hypotenuse block 642 slides to the topmost position of the hypotenuse housing 52. The connecting block 641 is pressed and slidably engaged with the hypotenuse part 652 and the hypotenuse groove 632 at the top of the first slide connecting block 651, and the hypotenuse part 652 is connected to the second slide to the maximum extent. Interlocks with the block 631 to overcome the extension force of the extension spring 633 and slide to the rightmost position of the first sliding connection housing 63, and at the same time, the first inner spline column 635 and the first outer spline column 637 are completely powered. The third motor 666 controls the second female spline groove 615 and rotates in conjunction with the second outer spline column 534, the second exchange shaft 533, and the second conical pulley 532. The second conical pulley 532 has a first conical pulley 531 and a second screw connection lever 513. The second screw connection lever 513 realizes the up / down sliding operation in conjunction with the storage plate 511 at the top of the tube 512, and the first electric rotating machine 634 is connected to the first inner spline pillar 635 and the first The outer spline column 637 and the first exchange shaft 636 are controlled to rotate, and the first exchange shaft 636 performs an angle adjustment operation in conjunction with the doctor blade part 622 at the bottom of the mounting seat 621.

The beneficial effect of the present invention is that the structure of the present invention is simple and convenient to operate, the necessary paper to be used is placed on top of the storage plate of the mounting housing, and then the second electric rotating machine is controlled. Rotates in conjunction with one screw connection lever, and the first screw connection lever slides to the left of the first guide connection groove in conjunction with the first guide connection block, and at the same time, the first guide connection block interlocks with the sliding block. to insert the space, when the first guide connection block slides to the leftmost position of the first guide connecting groove, first guide connection blocks insert completely the space in conjunction with the sliding block, at the same time, The slanted side housing is engaged with the slanted side block so that it can slide, and at the same time, the second outer spline column at the left end of the sliding block is engaged with the second female spline groove so that power can be completely transmitted. The hypotenuse block is connected to the second guide connection block. Interlock with the compression spring to overcome the pressing force of the compression spring and slide to the topmost position of the second guide connection groove. At the same time, the hypotenuse block slides to the topmost position of the hypotenuse housing. At this time, the second guide connection block Is engaged in such a way that it can be pressed and slidably interlocked with the hypotenuse part and hypotenuse groove at the top of the first sliding connection block, and the hypotenuse part interlocks with the second sliding connection block to the maximum extent The first inner spline column and the first outer spline column are engaged and connected so that power can be completely transmitted . Three motors control the second female spline groove and rotate in conjunction with the second outer spline post, second exchange shaft and second conical pulley, the second conical pulley is connected to the first conical pulley and the second screw Second screw connection lever that rotates in conjunction with the lever The first electric rotating machine controls the first inner spline column, the first outer spline column, and the first exchange shaft to rotate and move the first exchange shaft by moving up and down and sliding in conjunction with the storage plate at the top of the tube. The shaft adjusts the angle in conjunction with the doctor blade part at the bottom of the mounting seat, thereby improving the convenience of use, preventing paper jamming, and realizing automatic control lifting and lowering work. Satisfied and greatly improved work efficiency.

It is clear to those skilled in the art that there are various modifications in the above-mentioned embodiment on the assumption that it does not depart from the overall spirit and concept of the present invention, and these modifications are all within the protection scope of the present invention. The protection scheme of the invention should be based on the appended claims.

Claims (1)

A new printer or copy facility, comprising a main base and a brace fixedly installed at the bottom of the main base, wherein a space is installed in the main base, and a first is placed on the inner top wall of the space A cavity is installed, a first sliding connection housing is installed on the main base on the left side of the first cavity, a first guide connection groove is installed on the inner bottom wall of the space , and the first guide connection groove The first guide connection block is slidably engaged and connected, and a first screw connection lever installed to extend to the left and right is connected to the first guide connection block with a screw. A sliding block inserted into the space is slidably engaged with and connected to the right end surface of the body, and the position close to the left edge of the bottom of the sliding block is the bottom end surface of the first guide connection block fixedly engaged to connect the second guide connected to the left inner wall of the space and Is installed, and a second sliding connection casing is installed to extend upward on the left inner wall of the second guide connection groove, and the top extension end of the second sliding connection casing is the first sliding connection casing of installed so as to connect the bottom end, the second guide connecting block to said second guide connection groove is connected engages so as to be slidable, into the space to the right end of the second guide connecting block An oblique side block to be inserted is fixedly installed, and a guide connection lever installed extending vertically is connected to the second guide connection block so as to be slidable, and an upper side of the second guide connection block. A compression spring is rotatably installed on an outer surface of the guide connection lever, and a first slide connection block is slidably engaged with and connected to the second slide connection housing; Approach the bottom position of the right end face of the sliding connection block Is fixedly engaged with and connected to the left terminal end of the second guide connection block, a hypotenuse is fixedly installed on the top of the first slide connection block, and a second slip connection is made to the first slide connection housing. The blocks are slidably engaged and connected, and a tension spring is fixedly installed between the left end of the second sliding connection block and the left inner wall of the first sliding connection housing, A hypotenuse groove is installed on the bottom end face of the sliding connection block so as to be slidably engaged with the hypotenuse, and the first inner spline column can rotate on the right end face of the second sliding connection block. The first electric rotating machine is connected to the left end of the first inner spline column so that power can be transmitted, and the outer surface of the first electric rotating machine is connected to the first inner spline. To the second sliding connection block on the left side of the pillar A first exchange shaft, which is fixedly installed and extends to the left and right in a portion between the first sliding connection housing and the first cavity, is rotatably engaged and connected, and the first exchange A first outer spline column that is inserted into the first sliding connection housing is fixedly installed at the left end of the shaft, and a mounting seat that is inserted into the first cavity is fixedly installed at the right end of the first exchange shaft. A doctor blade component is fixedly installed at the bottom of the mounting seat, a mounting device is installed outside the first electric rotating machine, and a left extension end of the first screw connection lever is connected to the second electric rotating machine. Engaged and connected so that power can be transmitted, the outer surface of the second electric rotating machine is fixedly installed on the left inner wall of the first guide connecting groove, and the right end of the first screw connecting lever is It can be rotated with the right inner wall of the first guide connection groove Is engaged connection, both upper and lower sides of the extension end of the guide connecting lever is fixedly engaged connected upper and lower inner wall of each of the second guide connecting groove, the oblique block and pressing the left end surface of the sliding block A slanted housing that is slidably engaged and connected, a mounting housing is installed on the top end face of the sliding block, and a conductive housing is placed on the sliding block below the mounting housing And a storage tube is slidably engaged with and connected to the mounting housing, and a tubular tube installed extending downward on the bottom end surface of the storage plate is fixedly installed, and the tube A second screw connection lever installed extending downward in the cylinder is engaged and connected with a screw, and a first conical pulley is rotatably engaged and connected to the inner top wall of the transmission housing; The bottom extension end of the second screw connection lever is the top of the first conical pulley. End and power is engaged connected so as to be transmitted, said second exchanger shaft installed to extend in the left and right on the sliding block on the left side of the conductive housing are engaged connected so as to be rotatable, The first conical pulley is installed at the left end of the second exchange shaft with a second outer spline column extending outside the left end surface of the sliding block , and is inserted into the conductive casing at the right end of the second exchange shaft. And a second conical pulley that is engaged and connected so that power can be transmitted is fixedly installed, and a second female spline groove is rotatable on the left inner wall of the space corresponding to the second outer spline column is engaged connected as the left end of the second female spline grooves a third motor and the power is engaged connected so as to be transmitted, the outer surface of the third motor is the second female spline grooves Fixedly installed in the left inner wall of the space on the left side The mounting device includes a shock absorbing composite plate and a cooling iron piece, and the shock absorbing composite plate is installed at an upper end and a lower end of the first electric rotating machine and fixedly connected to the first electric rotating machine, and the cooling A new type printer or copy facility, wherein iron pieces are installed at the front and rear ends of the first electric rotating machine and fixedly connected to the first electric rotating machine.