Train lifting device

Abstract

The utility model provides a train lifting device, which belongs to the technical field of rail transit, aims to solve the problems that when a train is jacked by using an air cylinder in the prior art, a cushion block needs to be cushioned at the bottom of the air cylinder, and the operation is relatively tedious, and comprises a bottom plate, a support frame is arranged at the top of the bottom plate, a sliding chute is formed in the support frame in a penetrating manner, and is vertically arranged; a mounting frame is slidably embedded in the sliding groove, a moving seat is arranged in the mounting frame, and a lifting table is arranged at the end of the moving seat. The lifting device is used for driving the mounting frame to move in the height direction of the supporting frame, and the transverse displacement device is used for driving the moving seat to move in the width direction of the mounting frame; according to the lifting device, the transverse displacement device can drive the lifting table to move to the position below the train, the lifting device can drive the lifting table to ascend and descend, then the train is lifted to a certain height, the traditional mode that the train is jacked through an air cylinder and a cushion block is replaced, and the cushion block does not need to be manually cushioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transit, and particularly relates to a train lifting device. Background Art

[0002] In recent years, with the rapid development of urban rail transit, the problem of urban traffic congestion has been greatly improved. During the whole life cycle of the subway, it is necessary to carry out regular maintenance and overhaul to ensure the normal operation of various vehicle components and equipment and realize the clean operation of the vehicle.

[0003] The bogie is an important component of railway vehicles, usually including wheelsets, side frames and bolster. The side frames and bolster supported by the wheelsets can be collectively referred to as the bogie frame. For various railway operation vehicles, the support device between the bogie frame and the bogie wheelset directly affects the running smoothness of the vehicle, and also has an important impact on the working performance and service life of the operation equipment on the vehicle. Various parameters of the bogie also directly determine the stability of the vehicle and the riding comfort of the vehicle.

[0004] At present, before overhauling the bogie, it is necessary to lift the train and suspend it in the air to facilitate the removal of the bogie. The lifting device often uses a cylinder. However, the cylinder has a short stroke and the height that the train can be lifted is limited. Therefore, when using the cylinder to lift the train, it is often necessary to pad a cushion at the bottom of the cylinder, and the operation is relatively cumbersome. Summary of the Utility Model

[0005] In view of this, the utility model provides a train lifting device to solve the problem that when using a cylinder to lift a train, it is often necessary to pad a cushion at the bottom of the cylinder, and the operation is relatively cumbersome.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A train lifting device includes a bottom plate. A support frame is provided at the top of the bottom plate. A chute is vertically provided through the support frame. An installation frame is slidably embedded in the chute. A moving seat is arranged in the installation frame. The moving seat can slide along the width direction of the installation frame. A lifting platform is arranged at the end of the moving seat. The device also includes a lifting device for driving the installation frame to move along the height direction of the support frame and a lateral displacement device for driving the moving seat to move along the width direction of the installation frame.

[0008] In this technical solution, it should be noted that the support frame is a frame structure, and the mounting frame can slide along the height direction of the support frame. In this solution, when the train needs to be lifted, multiple lifting devices are arranged on the left and right sides of the train, and then the mounting frame is driven to descend through the lifting device, so that the height of the moving seat on the mounting frame is lower than the height of the train chassis. After that, the moving seat is driven to move towards the bottom of the train through the lateral displacement device, so that the lifting platform on the moving seat extends under the train. Finally, the mounting frame is driven to move upward through the lifting device, and then the lifting platform at the end of the moving seat moves upward, so as to gradually lift the train slowly. When the train is lifted to the specified height, the staff can remove the bogie. To sum up, in this utility model, the lateral displacement device can drive the lifting platform to move under the train, and the lifting device can drive the lifting platform to lift and lower, so as to lift the train to a certain height, replacing the traditional method of using cylinders and pads to lift the train, and eliminating the need for manual padding of pads.

[0009] Preferably, the moving seat is a frame structure, and a lead screw nut is provided at the center of the top of the mounting frame. The lead screw nut is fixedly connected to the mounting frame through a connecting column; the lifting device includes a lead screw and a motor. One end of the lead screw is rotatably connected to the bottom plate, and the other end passes through the moving seat and the mounting frame and is rotatably connected to the top of the support frame. The lead screw is threadedly connected to the lead screw nut, and the motor is provided on the top of the support frame to drive the lead screw to rotate.

[0010] In this technical solution, it should be noted that the lifting device specifically includes a lead screw and a motor. The lead screw nut is a matching part of the lead screw and is usually made of metal. It generates a certain frictional force through cooperation with the thread on the lead screw to push an object to move. In this solution, when the lifting platform on the moving seat needs to be lifted and lowered, the motor is started. The motor drives the lead screw to rotate. After the lead screw rotates, it drives the lead screw nut connected to its thread to lift and lower, and then the mounting frame integrated with the lead screw nut is lifted and lowered, that is, the functions of lifting and lowering the moving seat and the lifting platform on the mounting frame are realized.

[0011] Preferably, a limiting groove is provided inside the support frame. The limiting groove is vertically arranged, and a limiting wheel is rotatably connected to the mounting frame. The limiting wheel is slidably embedded in the limiting groove.

[0012] In this technical solution, it should be noted that the limiting groove and the limiting wheel are provided to limit the mounting frame, and the limiting wheel can reduce the friction between the mounting frame and the support frame.

[0013] Preferably, limiting shafts are respectively provided on the upper and lower sides of the moving seat. The limiting shafts are horizontally arranged on the support frame, and the limiting shafts are slidably connected to the moving seat.

[0014] In this technical solution, it should be noted that the limiting shaft is used to limit the moving seat in the height direction, so that the moving seat can be installed in the mounting frame.

[0015] Preferably, the lateral displacement device includes a rack, a rotating shaft and a gear. The rack is arranged on the top of the moving seat and is arranged along the length direction of the moving seat. The rotating shaft is rotatably connected to the mounting frame and is arranged horizontally. The gear is fixedly sleeved on the rotating shaft, and the gear meshes with the rack.

[0016] In this technical solution, it should be noted that the lateral displacement device specifically includes a rack, a rotating shaft and a gear. When it is necessary to drive the moving seat to move in the direction of the bottom of the train, the rotating shaft is rotated. After the rotating shaft rotates, it drives the gear to rotate. After the gear rotates, it drives the rack meshing with it to move, and then drives the lifting platform at the end of the moving seat to move below the train.

[0017] Preferably, a handwheel is fixedly connected to one end of the rotating shaft.

[0018] In this technical solution, it should be noted that the staff drives the rotating shaft to rotate by rotating the handwheel.

[0019] Preferably, moving wheels are arranged at the bottom of the bottom plate.

[0020] In this technical solution, it should be noted that the moving wheels are in sliding fit with the tracks arranged on the ground, and the arranged moving wheels facilitate driving the lifting device to move.

[0021] Preferably, an induction sheet is arranged at the top of the mounting frame, and a sensor opposite to the induction sheet is arranged at the top of the chute.

[0022] In this technical solution, it should be noted that when the mounting frame is about to move to the top of the support frame, at this time, the induction sheet contacts the sensor, the sensor senses the pressure and transmits the signal to the motor, and the motor shuts down.

[0023] To sum up, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0024] 1. In the present utility model, the arranged lateral displacement device can drive the lifting platform to move below the train, and the arranged lifting device can drive the lifting platform to lift and lower, thereby lifting the train by a certain height, replacing the traditional method of using cylinders and pads to lift the train, and eliminating the need for manual padding of pads;

[0025] 2. In the present utility model, the arranged limiting groove and limiting wheel are used to limit the mounting frame, and the limiting wheel can reduce the friction between the mounting frame and the support frame;

[0026] 3. In the present invention, the lateral displacement device specifically includes a rack, a rotating shaft and a gear. When it is necessary to drive the moving seat to move toward the bottom of the train, the rotating shaft is rotated. After the rotating shaft rotates, the gear is driven to rotate. After the gear rotates, it drives the rack engaged with it to move, and then drives the lifting platform at the end of the moving seat to move to the bottom of the train. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the lifting device of the present utility model;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting device of the present invention after cutting;

[0031] Figure 4 for Figure 3 Schematic diagram of the rear oblique stereoscopic structure;

[0032] Figure 5 for Figure 1 Schematic diagram of the rear oblique stereoscopic structure;

[0033] Among them: 1-support frame, 2-base plate, 3-mounting frame, 31-limiting shaft, 32-limiting wheel, 33-limiting slot, 34-sensor plate, 35-sensor, 4-moving seat, 41-rotating shaft, 42-handwheel, 43-gear, 44-rack, 5-lifting platform, 6-moving wheel, 7-track, 8-screw, 9-motor, 10-screw nut, 11-connecting column, 99-slide groove. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0037] It should be noted that like reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0039] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0040] Embodiment

[0041] As Figure 1-5 shown, an embodiment of the present utility model discloses a train lifting device, which includes a bottom plate 2. A support frame 1 is provided at the top of the bottom plate 2. A chute 99 is vertically provided through the support frame 1. An installation frame 3 is slidably embedded in the chute 99. A moving seat 4 is provided in the installation frame 3. The moving seat 4 can slide along the width direction of the installation frame 3. A lifting platform 5 is provided at the end of the moving seat 4. It further includes a lifting device for driving the installation frame 3 to move along the height direction of the support frame 1, and a lateral displacement device for driving the moving seat 4 to move along the width direction of the installation frame 3. It should be noted that the support frame 1 is a frame structure and the installation frame 3 can slide along the height direction of the support frame 1. In this solution, when it is necessary to lift the train, multiple lifting devices are arranged on the left and right sides of the train. Then, the installation frame 3 is driven to descend through the lifting device, so that the height of the moving seat 4 on the installation frame 3 is lower than the height of the train chassis. Then, the moving seat 4 is driven to move towards the bottom of the train through the lateral displacement device, so that the lifting platform 5 on the moving seat 4 extends under the train. Finally, the installation frame 3 is driven to move upward through the lifting device, and then the lifting platform 5 at the end of the moving seat 4 is driven to move upward, thereby gradually lifting the train slowly. When the train is lifted to the specified height, the staff can remove the bogie.

[0042] As Figure 2 , Figure 3 shown, in this embodiment, the moving seat 4 is of a frame structure. A lead screw nut 10 is provided at the center of the top of the mounting bracket 3, and the lead screw nut 10 is fixedly connected to the mounting bracket 3 through a connecting column 11. The lifting device includes a lead screw 8 and a motor 9. One end of the lead screw 8 is rotatably connected to the bottom plate 2, and the other end passes through the moving seat 4 and the mounting bracket 3 and is rotatably connected to the top of the support frame 1. The lead screw 8 is in threaded connection with the lead screw nut 10, and the motor 9 is provided at the top of the support frame 1 for driving the lead screw 8 to rotate. It should be noted that the lifting device specifically includes a lead screw 8 and a motor 9. The lead screw nut 10 is a matching part of the lead screw 8 and is usually made of metal. It generates a certain frictional force through cooperation with the thread on the lead screw 8 to push an object to move. In this solution, when it is necessary to drive the lifting platform 5 on the moving seat 4 to lift and lower, the motor 9 is started. The motor 9 drives the lead screw 8 to rotate. After the lead screw 8 rotates, it drives the lead screw nut 10 in threaded connection with it to lift and lower, thereby enabling the mounting bracket 3 integrated with the lead screw nut 10 to lift and lower, that is, realizing the function of lifting and lowering the moving seat 4 and the lifting platform 5 on the mounting bracket 3.

[0043] As Figure 4 shown, in this embodiment, a limiting groove 33 is provided inside the support frame 1. The limiting groove 33 is vertically arranged, and a limiting wheel 32 is rotatably connected to the mounting bracket 3. The limiting wheel 32 is slidably embedded in the limiting groove 33. It should be noted that the provided limiting groove 33 and limiting wheel 32 are used to limit the mounting bracket 3, and the limiting wheel 32 can reduce the friction between the mounting bracket 3 and the support frame 1.

[0044] As Figure 4 shown, in this embodiment, limiting shafts 31 are respectively provided on the upper and lower sides of the moving seat 4. The limiting shafts 31 are horizontally arranged on the support frame 1, and the limiting shafts 31 are slidably connected to the moving seat 4. It should be noted that the limiting shafts 31 are used to limit the moving seat 4 in the height direction, so that the moving seat 4 can be installed in the mounting bracket 3.

[0045] As Figure 3As shown, in this embodiment, the lateral displacement device includes a rack 44, a rotating shaft 41, and a gear 43. The rack 44 is provided on the top of the moving seat 4, and the rack 44 is arranged along the length direction of the moving seat 4. The rotating shaft 41 is rotatably connected to the mounting bracket 3, and the rotating shaft 41 is horizontally arranged. The gear 43 is fixedly sleeved on the rotating shaft 41, and the gear 43 meshes with the rack 44. It should be noted that the lateral displacement device specifically includes a rack 44, a rotating shaft 41, and a gear 43. When it is necessary to drive the moving seat 4 to move towards the bottom of the train, the rotating shaft 41 is rotated. After the rotating shaft 41 rotates, it drives the gear 43 to rotate. After the gear 43 rotates, it drives the rack 44 meshing with it to move, thereby driving the lifting platform 5 at the end of the moving seat 4 to move under the train.

[0046] As Figure 3 shown, in this embodiment, a handwheel 42 is fixedly connected to one end of the rotating shaft 41. It should be noted that the staff drives the rotating shaft 41 to rotate by rotating the handwheel 42.

[0047] As Figure 1 shown, in this embodiment, moving wheels 6 are provided at the bottom of the bottom plate 2. It should be noted that the moving wheels 6 are in sliding fit with the tracks 7 provided on the ground, and the provided moving wheels 6 facilitate driving the lifting device to move.

[0048] As Figure 5 shown, in this embodiment, an induction sheet 34 is provided on the top of the mounting bracket 3, and a sensor 35 opposite to the induction sheet 34 is provided on the top of the chute 99. It should be noted that when the mounting bracket 3 is about to move to the top of the support frame 1, at this time, the induction sheet 34 contacts the sensor 35, the sensor 35 senses the pressure, and transmits the signal to the motor 9, and the motor 9 is turned off.

[0049] The working principle of the present utility model is as follows:

[0050] When it is necessary to lift the train, a plurality of lifting devices are arranged on the left and right sides of the train. Then, the lifting devices are moved by the moving wheels 6 to transfer the lifting devices to the designated positions. After that, the motor 9 is started. The motor 9 drives the lead screw 8 to reverse, driving the lead screw nut 10 threadedly connected to the lead screw 8 to descend, thereby driving the mounting frame 3, the moving seat 4 and the lifting platform 5 to descend to a position lower than the bottom of the train. Then, the rotating shaft 41 is rotated. After the rotating shaft 41 rotates, it drives the gear 43 to rotate. After the gear 43 rotates, it drives the rack 44 engaged with it to move, thereby driving the lifting platform 5 at the end of the moving seat 4 to move under the train. Finally, the motor 9 is started again. The motor 9 drives the lead screw 8 to rotate forward. After the lead screw 8 rotates, it drives the lead screw nut 10 threadedly connected to it to move up and down, thereby causing the mounting frame 3 integrated with the lead screw nut 10 to move up and down, that is, finally causing the lifting platform 5 at the end of the moving seat 4 on the mounting frame 3 to lift the train to a certain height.

[0051] The circuits, electronic components and modules involved are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present utility model does not involve the improvement of software and methods either.

[0052] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0053] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A train lifting device, characterized in that, It includes a bottom plate (2), on the top of which there is a support frame (1). A chute (99) is provided through the support frame (1), and the chute (99) is vertically arranged. An installation frame (3) is slidably embedded in the chute (99). A moving seat (4) is arranged in the installation frame (3), and the moving seat (4) can slide along the width direction of the installation frame (3). A lifting platform (5) is arranged at the end of the moving seat (4). It further includes a lifting device for driving the installation frame (3) to move along the height direction of the support frame (1), and a lateral displacement device for driving the moving seat (4) to move along the width direction of the installation frame (3).

2. The train lifting device according to claim 1, wherein, The moving seat (4) is of a frame structure. A lead screw nut (10) is arranged at the center of the top of the installation frame (3), and the lead screw nut (10) is fixedly connected to the installation frame (3) through a connecting column (11). The lifting device includes a lead screw (8) and a motor (9). One end of the lead screw (8) is rotatably connected to the bottom plate (2), and the other end passes through the moving seat (4) and the installation frame (3) and is rotatably connected to the top of the support frame (1). The lead screw (8) is threadedly connected to the lead screw nut (10), and the motor (9) is arranged at the top of the support frame (1) for driving the lead screw (8) to rotate.

3. The train lifting device according to claim 1, characterized in that, A limiting groove (33) is arranged on the inner side of the support frame (1), and the limiting groove (33) is vertically arranged. A limiting wheel (32) is rotatably connected to the installation frame (3), and the limiting wheel (32) is slidably embedded in the limiting groove (33).

4. A train lifting device according to claim 1, characterized in that Limiting shafts (31) are respectively arranged on the upper and lower sides of the moving seat (4), and the limiting shafts (31) are horizontally arranged on the support frame (1), and the limiting shafts (31) are slidably connected to the moving seat (4).

5. The train lifting device according to claim 4, characterized in that, The lateral displacement device includes a rack (44), a rotating shaft (41) and a gear (43). The rack (44) is arranged on the top of the moving seat (4), and the rack (44) is arranged along the length direction of the moving seat (4). The rotating shaft (41) is rotatably connected to the installation frame (3), and the rotating shaft (41) is horizontally arranged. The gear (43) is fixedly sleeved on the rotating shaft (41), and the gear (43) meshes with the rack (44).

6. The train lifting device according to claim 5, wherein, A hand wheel (42) is fixedly connected to one end of the rotating shaft (41).

7. The train lifting device according to claim 1, characterized in that, Moving wheels (6) are arranged at the bottom of the bottom plate (2).

8. A train lifting device according to claim 1, characterized in that, An induction piece (34) is arranged at the top of the installation frame (3), and a sensor (35) opposite to the induction piece (34) is arranged at the top of the chute (99).

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