JP5423077B2 - Dynamo device - Google Patents

Description

The present invention relates to a dynamo equipment used to conduct the test specimens, such as transmissions and engines.

  As a dynamo device for testing transmissions, a drive motor is connected to the input shaft of the transmission via a torque meter, and a dynamometer is connected to the output shaft of the transmission via an axle shaft and a torque meter to test the transmission. What to do is known. (For example, refer to Patent Document 1).

JP 2002-005791 A

  In the conventional dynamo device, if the axle shaft is left in a so-called bare state, there is a risk of unexpected injury when an operator accidentally contacts the axle shaft rotating at high speed.

  In order to eliminate such dangers, the axle shaft is generally covered with a shaft cover. However, if the transmission is for a light vehicle (small), the input shaft and output of the transmission are used. If the axle shaft is covered with the shaft cover because the shaft distance is close, the drive motor and the shaft cover may interfere with each other. In such a case, the shaft cover must be removed. It was.

  The present invention provides a dynamo device in which a drive motor is connected to an input shaft of a transmission, a dynamometer is connected to an output shaft of the transmission via an axle shaft, and the periphery of the axle shaft is covered with a rotating shaft cover. An opening is formed on the surface of the shaft cover facing the drive motor, and the opening is opened and closed with a lid.

  The rotary shaft cover is configured by a cover body that is formed in a cylindrical shape and has an opening formed by cutting out a part of the peripheral surface, and a lid that opens and closes the opening.

  The lid is divided into a plurality in the axial direction, and the divided lid is moved in the circumferential direction to open and close the opening. Alternatively, the lid is divided into two in the axial direction of the cover body, and the opening is opened and closed by moving the two divided lids in the axial direction.

  The lid is formed in an arc shape having substantially the same curvature as the inner peripheral surface or outer peripheral surface of the cover main body, and is configured to open and close the opening by sliding along the inner peripheral surface or outer peripheral surface of the cover main body. .

  The cover main body was constituted by a pair of half pipe-shaped main body constituting members obtained by dividing a cylindrical body into two, and the opening was formed in one main body constituting member.

  When the transmission is for a light vehicle or the like and the distance between the input shaft side and the output shaft side is close, by opening the opening of the shaft cover and introducing the drive motor into the opening, Interference with the shaft cover can be avoided.

  A cover body that is formed in a cylindrical shape and has an opening formed by cutting out a part of a peripheral surface thereof; and a lid that is movably attached to the cover body and opens and closes the opening. And the opening is opened and closed by moving the lid in the circumferential direction of the cover body, so that the opening amount of the opening can be adjusted by adjusting the rotation angle of the lid in the circumferential direction. Can be adjusted.

  Moreover, since the said lid | cover was divided | segmented into plurality in the axial direction, the axial direction length of the part which the opening part has opened can be adjusted.

  Further, since the cover main body of the shaft cover is constituted by a pair of main body constituting members obtained by dividing the cylindrical body into two, the cover main body can be attached so as to sandwich the axle shaft from the peripheral surface side of the axle shaft.

The top view of a dynamo device. The enlarged view of the shaft cover part of FIG. The exploded perspective view of a shaft cover. Explanatory drawing which shows the attachment method of a shaft cover. The perspective view which shows the state which attached the lid | cover to the cover main body. Sectional drawing of the state which slid the lid to the maximum in the direction which opens an opening part. Sectional drawing of the state which slid the lid to the maximum in the direction which obstruct | occludes an opening part. Sectional drawing of the state which obstruct | occluded the opening part with the lid | cover. The perspective view which shows the other Example of a lid | cover. The perspective view which shows the further another Example of a lid | cover.

  FIG. 1 is a plan view of the dynamo device 1, and FIG. 2 is an enlarged view of the shaft cover of FIG. A dynamo device 1 for testing a transmission has a drive motor 5 connected to an input shaft 3 of a transmission 2 via a torque meter 4 and a dynamometer 9 connected to an output shaft 6 of the transmission 2 via an axle shaft 7 and a torque meter 8. Is connected to test the transmission. The transmission 2, torque meter 4 and drive motor 5 are attached to a bed 10, and the axle shaft 7, torque meter 8 and dynamometer 9 are attached to a bed 11. The periphery of the axle shaft 7 is covered with a rotating shaft cover 12.

  As shown in FIG. 3, the rotary shaft cover 12 includes a cylindrical cover body 14 provided with an opening 13 into which a part of the drive motor 5 can be introduced on a surface facing the drive motor 5, And a lid 15 that can open and close the opening 13.

  The cover main body 14 is configured by overlapping the ends of a pair of main body constituting members 14 a and 14 b formed in a half pipe shape obtained by dividing a cylindrical body into two and connecting them with bolts 16. The opening 13 is formed by notching one side of the one main body constituting member 14a into a concave shape. A large number of bolt screw holes 18... 18, 19... 19 for screwing bolts 17 for assembling the lid 15 are formed in the pair of main body constituting members 14 a and 14 b.

  The lid 15 is formed in an arc shape having the same curvature as the outer peripheral surface of the cover body 14, that is, in a half pipe shape. The lid 15 is divided into a plurality of lid constituting members 15a to 15h in the length direction.

  The lid constituting members 15a to 15h are provided with a pair of openings 20 for adjusting the opening degree in the circumferential direction and a bolt insertion hole 21 on one side of the length direction. The lid constituent members 15 a to 15 h are used by being assembled to the cover main body 14 with bolts 17.

  Next, a method for using the shaft cover will be described. First, as shown in FIG. 4, the axle shaft 7 is sandwiched between a pair of body constituent members 14 a and 14 b from the peripheral surface side of the axle shaft 7, and the pair of body constituent members 14 a and 14 b are coupled with bolts 16 to form a cylinder. A cover main body 14 is formed. Then, as shown in FIG. 3, the cover body 14 is attached to the cover support portion of the bed 10 using the leg portions 14c with the opening 13 facing the drive motor 5 side.

  Next, the cover constituent members 15 a to 15 h are attached to the cover body 14. The lid constituting members 15 a to 15 h are fixedly assembled to the cover main body 14 by a bolt 17 so as to be slidable in the circumferential direction or not slidable to the cover main body 14.

  In FIG. 5, the lid constituent members 15 a to 15 e among the lid constituent members 15 a to 15 h are assembled so as to be slidable in the circumferential direction with respect to the cover main body 14. On the other hand, the lid constituting members 15f to 15h are assembled to the cover body 14 so as not to slide in the circumferential direction.

  The lid constituting members 15a to 15e are inserted into the long hole 20, and the ends of the lid constituting members 15a to 15e are screwed into bolt screw holes 19 provided in the one main body constituting member 14b. Within this range, the cover body 14 is assembled so as to be slidable in the circumferential direction. Then, by loosening the bolt 17 and sliding the lid constituting members 15a to 15e along the outer peripheral surface of the cover main body 14, the opening 13 is within the range of the long hole 20 as shown in FIGS. The opening degree can be adjusted.

  On the other hand, as shown in FIG. 8, one end side of the lid constituting members 15f to 15h is screwed into a bolt screwing hole 19 provided in the one main body constituting member 14b through a bolt insertion hole 21. The other end side of the lid constituent members 15f to 15h is screwed into the bolt screw hole 18 provided in the other main body constituent member 14a through the long hole 20. Is attached to the cover body 14 and the opening 13 is fully closed.

  The rotary shaft cover of the embodiment has the above-described configuration, and as shown in FIG. 3, the rotary shaft cover is introduced by introducing a part of the drive motor 5 from the opening 13 into the cover body 14. 12 can be avoided. In addition, in the Example, as shown in FIG. 6, although the case where the cover structural members 15a-15e were made into the fully open state was shown, when it is not necessary to fully open an opening part, as shown in FIG. By rotating the lid constituent members 15a to 15e in the direction to close the portion 12, the opening 12 is opened within a necessary range, and the portions that do not need to be opened are closed by the lid constituent members 15a to 15e. Can be secured. Which of the lid constituent members 15a to 15h can be opened and closed, or how much to open / close, is determined appropriately depending on the width of the driving motor, the positional relationship between the driving motor and the transmission, the axle shaft, and the like. Is done. Moreover, in the said Example, as shown in FIG. 3, the case where the said long hole 20 was formed in the length of about the half of the circumferential direction length of the cover structural members 15a-15h was shown, but FIG. As shown, by forming the long hole 20 over substantially the entire circumference of the lid constituting members 15a to 15h, the lid constituting members 15a to 15h may be slidable from the fully opened state of the opening.

  FIG. 10 shows another embodiment of the rotating shaft cover. In this embodiment, the lid 15 is composed of a pair of lid division bodies 31 and 32 divided into two at a substantially central portion in the axial direction.

  The pair of lid division bodies 31 and 32 have a pair of opening and closing long holes 33 and 33 in the axial direction, and are attached to the cover body 14 by bolts 34 so as to be slidable in the axial direction of the cover body 14. It has been.

  The lid division bodies 31 and 32 close the opening 13 by sliding in a direction approaching each other (arrow A direction) and open the opening 13 by sliding in a direction separating from each other (arrow B direction). . Since other configurations are substantially the same as those of the basic embodiment, a duplicate description is omitted.

  In the embodiment, a dynamo device for testing a transmission for a light vehicle in which the distance between the input shaft side and the output shaft side is close as an example, but the rotating shaft cover of the present invention is not limited to the dynamo device, There is a risk of contact accidents due to exposure of the rotating shaft. For safety reasons, it is desirable to attach the rotating shaft cover. However, if the rotating shaft cover is attached, the rotating shaft cover may interfere with other members around it. It can be widely used in cases where there is, for example, and can protect workers and the like from the rotating shaft while avoiding contact with other members.

DESCRIPTION OF SYMBOLS 1 ... Dynamo apparatus 2 ... Transmission 3 ... Input shaft 4 ... Torque meter 5 ... Drive motor 6 ... Output shaft 7 ... Axle shaft 8 ... Torque meter 9 ... Dynamometer 12 ... Rotating shaft cover 13 ... Opening part 14 ... Cover main body 14a, 14b ... Main body constituting member 15 ... Lids 15a to 15h ... Lid constituting members 31, 32 ... Lid divided body

Claims (6)

In a dynamo device in which a drive motor is connected to an input shaft of a transmission and a dynamometer is connected to an output shaft of the transmission via an axle shaft, and the periphery of the axle shaft is covered with a rotary shaft cover.
A dynamo device characterized in that an opening is formed on a surface of the shaft cover facing the drive motor, and the opening is opened and closed with a lid. The shaft cover includes a cover main body formed in a cylindrical shape and having an opening formed by cutting out a part of a peripheral surface thereof, and a lid for opening and closing the opening. The dynamo device described in 1. The dynamo device according to claim 1, wherein the lid is divided into a plurality of parts in the axial direction and opens and closes the opening by moving in the circumferential direction. The said cover is divided into two by the axial direction of the said cover main body, The said opening part is opened and closed by moving these two divided | segmented lids to an axial direction, The opening or closing of Claim 1 or 2 characterized by the above-mentioned. Dynamo device. The lid is formed in an arc shape having substantially the same curvature as the inner peripheral surface or outer peripheral surface of the cover main body, and opens and closes the opening by sliding along the inner peripheral surface or outer peripheral surface of the cover main body. The dynamo device according to claim 1, wherein the dynamo device is provided. The said cover main body is comprised by a pair of half pipe-shaped main body structural member which divided the cylindrical body into two, The said opening part is formed in one main body structural member, The said 1st-5th characterized by the above-mentioned. A dynamo device according to any one of the above.

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