JP5581353B2 - lift device - Google Patents

Description

  The present invention relates to a lifting device, and more particularly to a screw-coupled lifting device.

  As the population ages, the population is densely populated in the city, and the number of high-rise buildings increases, the need for lifting devices increases day by day. The conventional lifting device moves the box up and down with a wire rope and pulley, and conveys people or cargo to each floor in the building. The wire rope type lifting mechanism has low manufacturing cost and matures manufacturing technology. There is a risk of the wire rope tearing. Therefore, since the wire rope type lifting apparatus needs to maintain regular inspection and maintenance, there is room for improvement.

  On the other hand, the lifting device driven by the screw coupling unit can eliminate the problem that the bolt in the screw coupling unit is turned into a nut and cannot be separated from the nut, and the wire rope is torn and the box body falls. However, the length of the bolt is limited during manufacture. When the length of the bolt is too large, there is a problem that a large stress is locally generated to affect the material strength. On the other hand, the invention described in Patent Document 1 solves the above-mentioned problem by using two sets of power sources, but adopts two sets of power sources and simultaneously controls the two sets of power sources. Therefore, the manufacturing cost increases and the control cost increases. Further, since the transmission mechanism is attached to the side of the lifting mechanism, the box body is inclined and moved, and there is a possibility that the operation becomes unstable.

Taiwan Utility Model Publication No. 543649 Specification

  The present invention has been made in view of the above-described problems, and provides an elevating device capable of realizing cost reduction by moving a box with a single power source and controlling only the single power source. For the purpose.

  Another object of the present invention is to provide an elevating device that stabilizes operation by suppressing a phenomenon in which a box body is tilted and moved with respect to the prior art.

  In order to achieve the above-described object, a lifting device according to the present invention includes a first rail, a second rail, a fixed seat, a first unit, a lifting platform, a power device, a second unit, and a moving body.

  The first rail and the second rail are vertically mounted on the fixed portion so as to be parallel to each other. The fixed seat is fixed to the fixed portion or the first rail. The first unit has a first bolt and a first nut, the tip of the first bolt is fixed to the fixed seat, and the first nut is screwed to the first bolt. When the first nut and the first bolt rotate to face each other, the first nut moves up and down along the first bolt. The lifting platform has a first guide groove and a second guide groove at both ends facing each other, the first rail is stored by the first guide groove, and the second rail is stored by the second guide groove. It is restricted to move up and down along the second rail. The power unit is mounted on the lifting platform and has a first drive unit and a second drive unit. The first drive unit is fixed to the first nut for rotating the first nut. The second unit has a second bolt and a second nut. The tip of the second bolt is fixed by the second drive unit, and rotates by driving the second drive unit. The second nut is screwed to the second bolt. When the second bolt and the second nut rotate to face each other, the second nut moves up and down along the second bolt. The movable body is mounted between the first rail and the second rail, and has a third guide groove and a fourth guide groove on both sides, and stores the first rail by the third guide groove, and by the fourth guide groove. In order to store the second rail, it is restricted to move up and down along the first rail and the second rail. The moving body moves with the second nut by being fixed to the second nut.

  As described above, according to the present invention, the movable body can be moved up and down via the first drive unit and the second drive unit by controlling the power unit. In addition, the manufacturing cost is lower than that of the conventional technology, and the control cost is low because only a single power unit needs to be controlled.

On the other hand, the power unit has a speed reducer and a motor. The speed reducer is mounted on the lifting platform and has a first drive unit and a second drive unit. The motor is mounted on the speed reducer and drives the first drive unit and the second drive unit. The reduction gear is mounted so as to go to an intermediate position between the first rail and the second rail. Moreover, the power unit is provided between the fixed seat and the moving body in the vertical direction.

  As described above, the lifting device according to the present invention moves the moving body up and down according to the intermediate position of the moving body, and the box body is installed on the moving body, so that the box body is inclined and moved as compared with the prior art. It is possible to suppress various phenomena and to stabilize the operation.

It is a perspective view which shows the raising / lowering apparatus by one Embodiment of this invention. It is an enlarged view which shows the raising / lowering stand and power apparatus of the raising / lowering apparatus by one Embodiment of this invention. It is an enlarged view which shows the moving body of the raising / lowering apparatus by one Embodiment of this invention. It is a schematic diagram which shows the use condition which moves the moving body of the raising / lowering apparatus by one Embodiment of this invention upwards. It is a schematic diagram which shows the use condition which moves the moving body of the raising / lowering apparatus by one Embodiment of this invention upwards. It is a schematic diagram which shows the use condition which moves the moving body of the raising / lowering apparatus by one Embodiment of this invention below. It is a schematic diagram which shows the use condition which moves the moving body of the raising / lowering apparatus by one Embodiment of this invention below.

Hereinafter, a lifting device according to an embodiment of the present invention will be described with reference to the drawings.
(One embodiment)

As shown in FIGS. 1 to 3, the lifting device according to the embodiment of the present invention is mounted on a fixed portion 80, and includes a first rail 11, a second rail 12, a fixed seat 13, a first unit 14, and a lifting platform. 15, a power unit 16, a second unit 17 and a moving body 18 are provided.
The first rail 11 and the second rail 12 are vertically mounted on the fixed portion 80 so as to be parallel to each other.

  The fixed seat 13 is fixed to the fixed portion 80 or the first rail 11. In this embodiment, the fixed seat 13 is attached to the first rail 11 as an example. Since the fixed seat 13 is a base for fixing an object, it may be fixed directly or indirectly to the fixed portion 80 or the first rail 11, or may be integrally formed with the fixed portion 80 or the first rail 11.

  The first unit 14 includes a first bolt 141 and a first nut 142, the first bolt 141 has a tip fixed to the fixed seat 13, and the first nut 142 is screwed to the first bolt 141. When the first nut 142 and the first bolt 141 rotate to face each other, the first nut 142 moves up and down along the first bolt 141. In the present embodiment, the first unit 14 may be a screw connection type or a roller screw connection type.

  The lifting platform 15 has a first guide groove 151 and a second guide groove 152 at both ends facing each other, the first rail 11 is stored by the first guide groove 151, and the second rail 12 is stored by the second guide groove 152. Therefore, it is restricted to move up and down along the first rail 11 and the second rail 12.

  The power unit 16 is mounted on the lifting platform 15 and includes a first drive unit 161 and a second drive unit 162. The first driving unit 161 is fixed to the first nut 142 to rotate the first nut 142. In the present embodiment, the power unit 16 includes a speed reducer 163 and a motor 164. The speed reducer 163 is mounted on the lifting platform 15 and has a first drive unit 161 and a second drive unit 162. The motor 164 is attached to the speed reducer 163 and drives the first drive unit 161 and the second drive unit 162.

  The second unit 17 has a second bolt 171 and a second nut 172. The second bolt 171 is rotated by the driving of the second driving unit 162 by fixing the tip of the second bolt 171 to the second driving unit 162. The second nut 172 is screwed to the second bolt 171. When the second bolt 171 and the second nut 172 rotate facing each other, the second nut 172 moves up and down along the second bolt 171.

  The moving body 18 is used for mounting a box or an object, is mounted between the first rail 11 and the second rail 12, and has a third guide groove 181 and a fourth guide groove 182 on both sides. Since the first rail 11 is stored by the third guide groove 181 and the second rail 12 is stored by the fourth guide groove 182, the first rail 11 is restricted to move up and down along the first rail 11 and the second rail 12. The moving body 18 moves along with the second nut 172 by being fixed to the second nut 172.

  As described above, in the present embodiment, the movable body 18 can be moved up and down by controlling the power unit 16 via the first drive unit 161 and the second drive unit 162. Further, the manufacturing cost can be reduced as compared with the conventional technique, and the control cost can be reduced because only the single power unit 16 is controlled.

  In addition, in this embodiment, the speed reducer 163 is disposed at a position toward the intermediate position between the first rail 11 and the second rail 12 in order to prevent the conventional box body from tilting and moving. Therefore, in the present embodiment, it is possible to suppress the phenomenon that the box body is inclined and move, and to improve the driving stability.

  Next, description will be made on the usage method of the present embodiment. When the moving body 18 is moved up and down along the first rail 11 and the second rail 12, the motor 164 in the power unit 16 is first activated and the speed reducer 163 is driven by the motor 164. Thus, the first nut 142 can be rotated, and the second driving portion 162 can rotate the second bolt 171.

  When the second bolt 171 is rotated, the second nut 172 screwed to the second bolt 171 moves along the second bolt 171. At this time, the moving body 18 fixed to the second nut 172 moves along with the second net 172. On the other hand, the first nut 142 rotates, moves up and down along the first bolt 141, and simultaneously moves the elevator 15 along the first rail 11 and the second rail 12.

  In the above description, each of the first unit 14 and the second unit 17 has a lead. In the present embodiment, the first unit 14 and the second unit 17 have the same lead, and the first nut 142 and the second bolt 171 have the same rotational speed. The moving distance is equal to the moving distance of the second bolt 171 of the moving body 18. The present embodiment is not limited to this, and the lead of the first unit 14 may be set to be larger than the lead of the second unit 17. On the other hand, the rotation speed of the first nut 142 is smaller than the rotation speed of the second bolt 171. Alternatively, the lead of the first unit 14 may be set to be smaller than the lead of the second unit 17. On the other hand, the rotation speed of the first nut 142 is higher than the rotation speed of the second bolt 171.

11 ... first rail,
12 ... second rail,
13 ... fixed seat,
14 ... 1st unit,
15 ... Lifting platform,
16 ... Power unit,
17 ... second unit,
18 ... moving body,
80: fixed part,
141 ... first bolt,
142 ... first nut,
151... First guide groove,
152 ... second guide groove,
161... First driving unit,
162 ... the second drive unit,
163 ... reducer,
164 ... Motor,
171 ... second bolt,
172 ... second nut,
181 ... Third guide groove,
182 ... Fourth guide groove.

Claims (5)

It is mounted on a fixed part, and includes a first rail, a second rail, a fixed seat, a first unit, a lifting platform, one power unit, a second unit, and a moving body,
The first rail and the second rail are vertically mounted on the fixed portion so as to be parallel to each other,
The fixed seat is fixed to the fixed portion or the first rail,
The first unit includes a first bolt and a first nut, the tip of the first bolt is fixed to the fixed seat, the first nut is screwed to the first bolt, and the first nut When the first bolt rotates opposite to each other, the first nut moves up and down along the first bolt,
The lifting platform has a first guide groove and a second guide groove at both ends facing each other, the first rail is stored by the first guide groove, and the second rail is stored by the second guide groove. Therefore, to move up and down along said first rail and said second rail,
The power unit is mounted on the lifting platform and has a first drive unit and a second drive unit, and the first drive unit is fixed to the first nut for rotating the first nut,
The second unit includes a second bolt and a second nut, and the second bolt is rotated by driving the second drive unit with a tip fixed to the second drive unit, and the second nut Is screwed to the second bolt, and when the second bolt and the second nut rotate opposite each other, the second nut moves up and down along the second bolt,
The movable body is mounted between the first rail and the second rail, and has a third guide groove and a fourth guide groove on both sides, and the first rail is stored by the third guide groove. , for storing the second rail by the fourth guide groove to move up and down along said first rail and said second rail and said movable body is the first by being fixed to the second nut A lifting device characterized by moving with the two nuts. The power unit has a speed reducer and a motor,
The speed reducer is mounted on the elevator and has a first drive unit and a second drive unit,
The lifting device according to claim 1, wherein the motor is mounted on a reduction gear and drives the first drive unit and the second drive unit. The lifting device according to claim 1, wherein the power device is provided between the fixed seat and the moving body in a vertical direction.   The elevating device according to claim 1, wherein the first unit and the second unit have the same lead, and the first nut and the second bolt have the same rotational speed. The lead of the first unit is formed larger than the lead of the second unit;
The lifting device according to claim 1, wherein a rotation speed of the first nut is set smaller than a rotation speed of the second bolt.

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