Automatic lifting device of semitrailer shifting roof

Abstract

The utility model provides an automatic lifting device of a semitrailer shifting roof. The automatic lifting device comprises a mounting plate; the moving groove is formed in one side of the bottom of the mounting plate, a sliding groove is formed in the other side of the bottom of the mounting plate, a limiting rod is fixedly mounted in the sliding groove, and an adjusting device is arranged in the moving groove; the pushing device is in threaded engagement with the outer surface of the adjusting device. According to the automatic lifting device of the semitrailer shifting jack, an output shaft of a first servo motor is controlled to rotate through an external power source to drive a first reciprocating lead screw to rotate, the first reciprocating lead screw rotates and is meshed with a pushing device in a threaded mode to slide, and a pushing plate pushes a hydraulic cylinder to rotate and be transversely arranged at the bottom of a semitrailer. The moving roof can be automatically pushed to be transversely stored at the bottom of the semitrailer or vertically stored at the bottom of the semitrailer, automatic lifting of the moving roof is achieved, manual operation is not needed, the labor intensity of operators is reduced, and automation of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of a semitrailer shifting roof, in particular to an automatic lifting device for a semitrailer shifting roof. Background Art

[0002] The conventional fixing structure of the shifting top of a semi-trailer mainly connects the cylinder of the shifting top through one end of a chain and the other end of the chain is connected to the bottom beam of the semi-trailer.

[0003] When the semi-trailer is unloading the cargo in a sideways manner, the granular cargo often flows to the bottom of the tire after the unloading is completed, which will cause the semi-trailer to be blocked when moving outward. At this time, the semi-trailer shifting top is needed. However, the shifting top needs to be manually disassembled during use, and the chain is manually lowered down. The body of the vehicle is lifted upward by the shifting top to realize the swing and adjustment of the rear part of the vehicle. After the adjustment, it is convenient to avoid obstacles and materials. After the vehicle moves outward, it is necessary to manually rotate the shifting top and continue to hang it horizontally on the bottom of the semi-trailer. The shifting top is heavy, which increases the labor intensity of the operator and has poor practicality.

[0004] Therefore, it is necessary to provide an automatic lifting device for a semi-trailer shifting top to solve the above technical problems. Utility Model Content

[0005] The utility model provides an automatic lifting device for a shifting top of a semi-trailer, which solves the problem that the shifting top needs to be manually disassembled and manually lowered during use, and the body of the vehicle is lifted upward by the shifting top to realize the swing and adjustment of the rear part of the vehicle. After the adjustment, it is convenient to avoid obstacles and materials, and after the vehicle moves outward, it is still necessary to manually rotate the shifting top and continue to hang it horizontally on the bottom of the semi-trailer. However, the shifting top is heavy, which increases the labor intensity of the operator and has poor practicality.

[0006] In order to solve the above technical problems, the utility model provides an automatic lifting device for a semi-trailer shifting top, comprising: a mounting plate;

[0007] A movable groove, the movable groove is opened on one side of the bottom of the mounting plate, a slide groove is opened on the other side of the bottom of the mounting plate, a limit rod is fixedly installed inside the slide groove, and an adjustment device is arranged inside the movable groove;

[0008] A pushing device, wherein the pushing device is threadedly engaged with an outer surface of the adjusting device;

[0009] A connecting rod is arranged in the middle of the bottom of the mounting plate, the bottom of the outer surface of the connecting rod is rotatably connected to a rotating frame, and the bottom of the rotating frame is fixedly connected to a hydraulic cylinder.

[0010] Preferably, the adjusting device comprises a first servo motor and a first reciprocating screw, the first servo motor is fixedly mounted on one side of the outer surface of the mounting plate, and the first reciprocating screw is fixedly connected to one end of the output shaft of the first servo motor.

[0011] Preferably, the pushing device includes a push plate, a connecting plate, a threaded block and a limit block, the push plate is arranged at the bottom of the mounting plate, the two connecting plates are respectively fixedly installed on both sides of the surface of the push plate, the threaded block is fixedly installed on one side of one of the connecting plates, and the limit block is fixedly installed on one side of the other connecting plate.

[0012] Preferably, the bottom of the output shaft of the hydraulic cylinder is rotatably connected to a top plate.

[0013] Preferably, a pull plate is fixedly mounted on one side of the top plate surface.

[0014] Preferably, a limiting groove is provided on one side of the bottom of the mounting plate, a second reciprocating screw is rotatably installed inside the limiting groove, one end of the second reciprocating screw is fixedly connected to the output shaft of the second servo motor, and an extrusion device is threadedly engaged on the outer surface of the second reciprocating screw.

[0015] Preferably, the extrusion device comprises a threaded plate and an extrusion plate, the threaded plate is threadably engaged with an outer surface of the second reciprocating screw, and the extrusion plate is fixedly connected to one side of the threaded plate.

[0016] Compared with the related art, the automatic lifting device for the shifting top of a semi-trailer provided by the utility model has the following beneficial effects:

[0017] The utility model provides an automatic lifting device for a shifting top of a semi-trailer. The output shaft of a first servo motor is controlled to rotate by an external power supply to drive the first reciprocating screw rod to rotate. The first reciprocating screw rod rotates and the threaded engagement pushes the device to slide. The push plate pushes the hydraulic cylinder to rotate and is horizontally placed at the bottom of the semi-trailer. The device has a simple structure and strong practicality. It can automatically push the shifting top to be stored horizontally at the bottom of the semi-trailer or vertically at the bottom of the semi-trailer to realize automatic lifting of the shifting top. No manual operation is required, the labor intensity of the operator is reduced, and the automation of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a first embodiment of an automatic lifting device for a semi-trailer shifting roof provided by the utility model;

[0019] Figure 2 for Figure 1 The bottom view of the mounting plate shown;

[0020] Figure 3 for Figure 1The schematic diagram of the hydraulic cylinder activity shown;

[0021] Figure 4 The utility model is a structural schematic diagram of a second embodiment of an automatic lifting device for a shifting roof of a semitrailer.

[0022] Numbers in the figure: 1. mounting plate, 2. moving groove, 3. slide groove, 4. adjusting device, 41. first servo motor, 42. first reciprocating screw, 5. pushing device, 51. pushing plate, 52. connecting plate, 53. threaded block, 54. limiting block, 6. connecting rod, 7. rotating frame, 8. hydraulic cylinder, 9. top plate, 10. pulling plate, 12. limiting rod, 13. limiting groove, 14. second servo motor, 15. second reciprocating screw, 16. extrusion device, 161. threaded plate, 162. extrusion plate. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] First embodiment

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A structural schematic diagram of a first embodiment of an automatic lifting device for a semi-trailer shifting roof provided by the utility model; Figure 2 for Figure 1 The bottom view of the mounting plate shown; Figure 3 for Figure 1 The schematic diagram of the hydraulic cylinder activity is shown in FIG. An automatic lifting device for a semi-trailer shifting top comprises: a mounting plate 1;

[0026] A movable groove 2, the movable groove 2 is opened on one side of the bottom of the mounting plate 1, a slide groove 3 is opened on the other side of the bottom of the mounting plate 1, a limit rod 12 is fixedly installed inside the slide groove 3, and an adjustment device 4 is arranged inside the movable groove 2;

[0027] A pushing device 5, wherein the pushing device 5 is threadedly engaged with an outer surface of the adjusting device 4;

[0028] A connecting rod 6 is arranged in the middle of the bottom of the mounting plate 1 , and a rotating frame 7 is rotatably connected to the bottom of the outer surface of the connecting rod 6 , and a hydraulic cylinder 8 is fixedly connected to the bottom of the rotating frame 7 .

[0029] The adjusting device 4 includes a first servo motor 41 and a first reciprocating screw 42 . The first servo motor 41 is fixedly mounted on one side of the outer surface of the mounting plate 1 , and the first reciprocating screw 42 is fixedly connected to one end of the output shaft of the first servo motor 41 .

[0030] The pushing device 5 includes a pushing plate 51, a connecting plate 52, a threaded block 53 and a limit block 54. The pushing plate 51 is arranged at the bottom of the mounting plate 1. The two connecting plates 52 are respectively fixedly installed on both sides of the surface of the pushing plate 51. The threaded block 53 is fixedly installed on one side of one of the connecting plates 52, and the limit block 54 is fixedly installed on one side of the other connecting plate 52.

[0031] The bottom of the output shaft of the hydraulic cylinder 8 is rotatably connected to a top plate 9 .

[0032] A pull plate 10 is fixedly mounted on one side of the surface of the top plate 9 .

[0033] The mounting plate 1 is mounted on the bottom of the frame by bolts or welding.

[0034] The working principle of the automatic lifting device of the semi-trailer shifting top provided by the utility model is as follows:

[0035] During operation, first, the output shaft of the first servo motor 41 is controlled to rotate through an external power supply to drive the first reciprocating screw 42 to rotate. The first reciprocating screw 42 rotates the thread to engage the threaded block 53 to slide along the movable groove 2. The threaded block 53 drives the push plate 51 to slide at the bottom of the mounting plate 1. The push plate 51 pushes the hydraulic cylinder 8 and the rotating frame 7 to rotate on the surface of the connecting rod 6, so that the hydraulic cylinder 8 is placed horizontally at the bottom of the semi-trailer.

[0036] The output shaft of the first servo motor 41 is controlled by an external power supply to rotate, driving the first reciprocating screw 42 to continue to rotate. The first reciprocating screw 42 rotates the thread to engage the threaded block 53 to slide along the movable groove 2 toward the side away from the hydraulic cylinder 8. The threaded block 53 drives the push plate 51 to slide at the bottom of the mounting plate 1 and releases the restriction on the hydraulic cylinder 8, allowing the hydraulic cylinder 8 to fall naturally.

[0037] Compared with the related art, the automatic lifting device for the shifting top of a semi-trailer provided by the utility model has the following beneficial effects:

[0038] The utility model provides an automatic lifting device for a shifting top of a semi-trailer. The output shaft of a first servo motor 41 is controlled to rotate by an external power supply to drive a first reciprocating screw rod 42 to rotate. The first reciprocating screw rod 42 rotates to engage with a threaded driving device 5 to slide. A push plate 51 drives a hydraulic cylinder 8 to rotate and is horizontally placed at the bottom of the semi-trailer. The device has a simple structure and is highly practical. It can automatically push the shifting top to be horizontally stored at the bottom of the semi-trailer or vertically at the bottom of the semi-trailer to realize automatic lifting of the shifting top without manual operation, thereby reducing the labor intensity of operators and improving the automation of the device.

[0039] Second embodiment

[0040] Please refer to Figure 4Based on the automatic lifting device for the shifting roof of a semi-trailer provided in the first embodiment of the present application, the second embodiment of the present application proposes another automatic lifting device for the shifting roof of a semi-trailer. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the second embodiment of the present application provides an automatic lifting device for a semi-trailer shifting top, which is different in that, in an automatic lifting device for a semi-trailer shifting top, a limiting groove 13 is opened on one side of the bottom of the mounting plate 1, and a second reciprocating screw rod 15 is rotatably installed inside the limiting groove 13, one end of the second reciprocating screw rod 15 is fixedly connected to the output shaft of the second servo motor 14, and the outer surface of the second reciprocating screw rod 15 is threadedly engaged with an extrusion device 16.

[0042] The extrusion device 16 includes a threaded plate 161 and an extrusion plate 162 . The threaded plate 161 is threadedly engaged with the outer surface of the second reciprocating screw 15 , and the extrusion plate 162 is fixedly connected to one side of the threaded plate 161 .

[0043] The working principle of the automatic lifting device of the semi-trailer shifting top provided by the utility model is as follows:

[0044] During operation, first, the output shaft of the second servo motor 14 is controlled by an external power supply to rotate to drive the second reciprocating screw 15 to rotate, and the second reciprocating screw 15 is threadedly engaged with the threaded plate 161 to drive the extrusion plate 162 to move, and the extrusion plate 162 pushes the hydraulic cylinder 8 to tilt and support on the ground.

[0045] Compared with the related art, the automatic lifting device for the shifting top of a semi-trailer provided by the utility model has the following beneficial effects:

[0046] The utility model provides an automatic lifting device for a semi-trailer shifting jack, which controls the output shaft of a second servo motor 14 to rotate through an external power supply to drive the second reciprocating screw rod 15 to rotate, and the second reciprocating screw rod 15 is threadedly engaged with a threaded plate 161 to drive an extrusion plate 162 to move, and the extrusion plate 162 pushes the hydraulic cylinder 8 to tilt and support it on the ground. The device has a simple structure and strong practicality. When jacking a vehicle, the supporting angle of the shifting jack can be adjusted according to the actual needs of the semi-trailer, so as to adapt to the displacement angle of the semi-trailer and improve the practicality of the device.

[0047] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An automatic lifting device for a semi-trailer shifting roof, characterized in that: include: Mounting plate; A movable groove, the movable groove is opened on one side of the bottom of the mounting plate, a slide groove is opened on the other side of the bottom of the mounting plate, a limit rod is fixedly installed inside the slide groove, and an adjustment device is arranged inside the movable groove; A pushing device, wherein the pushing device is threadedly engaged with an outer surface of the adjusting device; A connecting rod is arranged in the middle of the bottom of the mounting plate, the bottom of the outer surface of the connecting rod is rotatably connected to a rotating frame, and the bottom of the rotating frame is fixedly connected to a hydraulic cylinder.

2. The automatic lifting device for the shifting roof of a semitrailer according to claim 1, characterized in that: The adjusting device comprises a first servo motor and a first reciprocating screw. The first servo motor is fixedly mounted on one side of the outer surface of the mounting plate, and the first reciprocating screw is fixedly connected to one end of the output shaft of the first servo motor.

3. The automatic lifting device for the shifting roof of a semitrailer according to claim 1, characterized in that: The pushing device includes a push plate, a connecting plate, a threaded block and a limit block. The push plate is arranged at the bottom of the mounting plate, and the two connecting plates are respectively fixedly installed on both sides of the push plate surface, the threaded block is fixedly installed on one side of one of the connecting plates, and the limit block is fixedly installed on one side of the other connecting plate.

4. The automatic lifting device for the shifting roof of a semitrailer according to claim 1, characterized in that: The bottom of the output shaft of the hydraulic cylinder is rotatably connected with a top plate.

5. The automatic lifting device for the shifting roof of a semitrailer according to claim 4, characterized in that: A pull plate is fixedly installed on one side of the top plate surface.

6. The automatic lifting device for the shifting roof of a semitrailer according to claim 1, characterized in that: A limiting groove is provided on one side of the bottom of the mounting plate, a second reciprocating screw is rotatably mounted inside the limiting groove, one end of the second reciprocating screw is fixedly connected to the output shaft of the second servo motor, and an extrusion device is threadedly engaged on the outer surface of the second reciprocating screw.

7. The automatic lifting device for the shifting roof of a semitrailer according to claim 6, characterized in that: The extrusion device comprises a threaded plate and an extrusion plate, wherein the threaded plate is threadably engaged with the outer surface of the second reciprocating screw, and the extrusion plate is fixedly connected to one side of the threaded plate.

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