Hook head lifting device

Abstract

The utility model relates to a hook head lifting device, which relates to the technical field of car coupler transportation equipment and is used for solving the problem of clamping stagnation of a lifting hook head of the hook head lifting device. Comprising a base fixed on an object to be fixed; the stand column is arranged on the machine base; the lifting carrying vehicle is arranged on the stand column, the lifting carrying vehicle is in sliding connection with the stand column in the first direction, and the lifting carrying vehicle is used for lifting the hook head; and the guide mechanism is arranged between the stand column and the lifting carrier vehicle, and the guide mechanism is used for guiding the lifting carrier vehicle to slide in the first direction. The guide mechanism is integrally arranged in the hook head lifting device. And the lifting carrier vehicle is guided through the guide mechanism. Therefore, the lifting carrier vehicle slides on the stand column in the first direction. Therefore, the lifting carrying vehicle is prevented from being clamped on the stand column. Therefore, the hook head lifting device can work normally. And the overhauling and mounting efficiency of the wagon coupler is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle coupler transportation equipment, in particular to a hook head lifting device. Background Art

[0002] During the inspection and installation of existing railway freight car hooks, it is necessary to lift the hook head on the underground conveyor line. Usually, the hook head is lifted vertically by a hook head lifting device.

[0003] However, the hook head lifting device in the prior art (its specific structure can be found in Chinese invention patent: CN116160220A) adopts a scissor-type lifting mechanism to lift the hook head.

[0004] However, this scissor-type lifting mechanism may get stuck when lifting the hook head, which will cause the hook head to be lifted unsmoothly, seriously affecting the maintenance and installation efficiency of the railway freight car coupler.

[0005] That is to say, the hook head lifting device in the prior art has the problem of the lifting hook head getting stuck. Utility Model Content

[0006] The utility model provides a hook head lifting device, which is used to solve the problem of the lifting hook head being stuck in the hook head lifting device.

[0007] The utility model provides a hook lifting device, comprising:

[0008] A machine base, which is fixed on the object to be fixed; and

[0009] A column, which is arranged on the machine base; and

[0010] A lifting trolley is arranged on the column, the lifting trolley is slidably connected to the column in a first direction, and the lifting trolley is used to lift the hook head; and

[0011] The guide mechanism is arranged between the column and the lifting vehicle, and is used for guiding the lifting vehicle to slide along a first direction.

[0012] In one embodiment, the guiding mechanism comprises:

[0013] A first roller assembly is disposed on the lifting vehicle; and

[0014] A second roller group is arranged on the lifting vehicle and is arranged corresponding to the first roller group;

[0015] The first roller group and the second roller group can roll on the outer peripheral surface of the column at the same time to limit the lifting vehicle to rise and fall along the first direction.

[0016] In one embodiment, the column is a square column, and the first roller group includes a plurality of first rollers, which are arranged at intervals along the circumference of the column and can roll on the outer circumferential surface of the column at the same time.

[0017] In one embodiment, the column is a square column, and the second roller group includes a plurality of second rollers, which are arranged at intervals along the circumference of the column and can roll on the outer circumferential surface of the column at the same time, wherein the plurality of second rollers and the plurality of first rollers are arranged at a certain angle in the first direction.

[0018] In one embodiment, the column is a square column, and the second roller group includes a plurality of second rollers, which are arranged at intervals along the circumference of the column and can roll on the outer circumferential surface of the column at the same time.

[0019] In one embodiment, the first drive mechanism is further included, comprising:

[0020] A lead screw is rotatably disposed in the column; and

[0021] a connector assembly, which is sleeved on the outer circumference of the lead screw and is threadedly connected to the lead screw; and

[0022] Among them, a slide groove extending along the first direction is opened on one side of the column, one end of the connector assembly extends from the slide groove and is connected to the lifting vehicle, and the slide groove can prevent the connector assembly from rotating around the screw.

[0023] In one embodiment, it also includes a rolling bearing, the outer ring of the rolling bearing is fixed on the machine base, one end of the lead screw is fixed to the inner ring of the rolling bearing, or the outer ring of the rolling bearing is fixed to the end of the column away from the machine base, and one end of the lead screw is fixed to the inner ring of the rolling bearing.

[0024] In one embodiment, a second driving mechanism is further included, and the second driving mechanism includes:

[0025] A driving unit, which is arranged on the base; and

[0026] A transmission part connected to the driving part and the lead screw;

[0027] Among them, the driving part is used to drive the transmission part to move, and the transmission part is used to drive the lead screw to rotate.

[0028] In one embodiment, the transmission unit comprises:

[0029] a first sprocket fixed to the outer periphery of the lead screw; and

[0030] a second sprocket fixed to the driving portion; and

[0031] A transmission chain, one end of which is meshed with the first sprocket, and the other end of which is meshed with the second sprocket;

[0032] The driving part comprises a driving motor, a driving end of the driving motor is fixedly connected to the second sprocket, and the first sprocket, the second sprocket and the transmission chain form a chain and sprocket transmission mechanism.

[0033] In one embodiment, a control component is further included, which is electrically connected to the drive motor and is used to control the start and stop of the drive motor.

[0034] Compared with the prior art, the utility model has the advantage that a guide mechanism is integrated in the hook lifting device. The lifting vehicle is guided by the guide mechanism. This ensures that the lifting vehicle slides on the column along the first direction. This prevents the lifting vehicle from getting stuck on the column. This ensures that the hook lifting device can work normally. This improves the inspection and installation efficiency of the railway freight car coupler. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0036] Figure 1 It is a three-dimensional structural schematic diagram of the hook lifting device in the embodiment of the utility model;

[0037] Figure 2 It is a front view of the hook lifting device in the embodiment of the utility model;

[0038] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0039] Figure 4 yes Figure 3 Cross-sectional view at the middle BB.

[0040] Reference numerals:

[0041] 10. Machine base; 20. Column; 30. Lifting vehicle; 40. Guide mechanism; 41. First roller group; 411. First roller; 42. Second roller group; 421. Second roller; 50. First driving mechanism; 51. Lead screw; 52. Connector assembly; 521. Drive nut; 522. Connector; 60. Rolling bearing; 70. Second driving mechanism; 71. Drive unit; 711. Drive motor; 712. Reducer; 72. Transmission unit; 80. Control assembly; 100. Hook. DETAILED DESCRIPTION

[0042] The utility model will be further described below in conjunction with the accompanying drawings.

[0043] like Figures 1 to 4As shown, the utility model provides a hook head 100 lifting device, which includes a machine base 10, a column 20, a lifting vehicle 30 and a guide mechanism 40. The machine base 10 is fixed on the object to be fixed; the column 20 is arranged on the machine base 10; the lifting vehicle 30 is arranged on the column 20, and the lifting vehicle 30 is connected to the column 20 in a sliding manner in a first direction, and the lifting vehicle 30 is used to lift the hook head 100; the guide mechanism 40 is arranged between the column 20 and the lifting vehicle 30, and the guide mechanism 40 is used to guide the lifting vehicle 30 to slide along the first direction.

[0044] In the above arrangement, the guide mechanism 40 is integrated in the hook head 100 lifting device. The lifting vehicle 30 is guided by the guide mechanism 40. This ensures that the lifting vehicle 30 slides on the column 20 along the first direction. This prevents the lifting vehicle 30 from getting stuck on the column 20. This ensures that the hook head 100 lifting device can work normally. This further improves the inspection and installation efficiency of the railway freight car coupler.

[0045] Specifically, Figures 1 to 4 As shown, in one embodiment, the guide mechanism 40 includes a first roller group 41 and a second roller group 42. The first roller group 41 is arranged on the lifting vehicle 30; the second roller group 42 is arranged on the lifting vehicle 30 and is arranged corresponding to the first roller group 41; the first roller group 41 and the second roller group 42 can roll on the outer peripheral surface of the column 20 at the same time to limit the lifting vehicle 30 to rise and fall along the first direction.

[0046] In the above configuration, the guide mechanism 40 is configured as a roller set, so that while ensuring that the lifting vehicle 30 slides along the first direction on the column 20, the friction between the guide mechanism 40 and the column 20 can be reduced. This reduces damage to the guide mechanism 40, thereby extending the service life of the hook head 100 lifting device.

[0047] Of course, in an alternative embodiment not shown in the drawings of the present application, the guide mechanism 40 can be configured as a limit block fixed on the lifting vehicle 30, and the limit block limits the lifting of the lifting vehicle 30 along the first direction.

[0048] Specifically, Figures 1 to 4 As shown, in one embodiment, the column 20 is a square column, and the first roller group 41 includes a plurality of first rollers 411, which are arranged at intervals along the circumference of the column 20 and can roll on the outer circumference of the column 20 at the same time. In this way, the smoothness and stability of the sliding of the lifting vehicle 30 can be ensured, thereby improving the performance of the hook head 100 lifting device.

[0049] Specifically, Figures 1 to 4As shown, in one embodiment, the column 20 is a square column, and the second roller group 42 includes a plurality of second rollers 421, which are arranged at intervals along the circumference of the column 20 and can roll on the outer peripheral surface of the column 20 at the same time, wherein the plurality of second rollers 421 and the plurality of first rollers 411 are arranged at a 90-degree angle in the first direction. The second roller group 42 has the same structure and size as the first roller group 41. In this way, the two can be interchangeable. Thus, the internal component structure of the hook head 100 lifting device is simplified, and the replacement of its internal components is convenient. In addition, the later maintenance cost of the hook head 100 lifting device is reduced.

[0050] Specifically, Figures 1 to 4 As shown, in one embodiment, the plurality of second rollers 421 are located below the plurality of first roller groups 41 .

[0051] Of course, in an alternative embodiment not shown in the drawings of the present application, the plurality of second rollers 421 and the plurality of first rollers 411 may be arranged in a one-to-one correspondence in the first direction.

[0052] Of course, in alternative embodiments not shown in the drawings of the present application, the structures and sizes of the second roller 421 and the first roller 411 may be set to be different.

[0053] Of course, in alternative embodiments not shown in the drawings of the present application, only the second roller set 42 or the first roller set 41 may be provided.

[0054] Specifically, Figures 1 to 4 As shown, in one embodiment, the hook head 100 lifting device further includes a first driving mechanism 50, which includes a lead screw 51 and a connector assembly 52. ​​The lead screw 51 is rotatably disposed in the column 20; the connector assembly 52 is sleeved on the outer periphery of the lead screw 51 and is threadedly connected to the lead screw 51; a slide groove extending along a first direction is provided on one side of the column 20, one end of the connector assembly 52 extends from the slide groove and is connected to the lifting vehicle 30, and the slide groove can prevent the connector assembly 52 from rotating around the lead screw 51.

[0055] In the above arrangement, the connecting body assembly 52 can be driven to slide along the slide groove by rotating the lead screw 51, and the connecting body assembly 52 drives the lifting vehicle 30 to move up and down, thereby realizing the function of driving the lifting vehicle 30 to move up and down.

[0056] Specifically, Figures 1 to 4 As shown, in one embodiment, a rolling bearing 60 is further included, the outer ring of the rolling bearing 60 is fixed on the machine base 10 , and one end of the lead screw 51 is fixed to the inner ring of the rolling bearing 60 .

[0057] Specifically, Figures 1 to 4As shown, in one embodiment, a rolling bearing 60 is further included, the outer ring of the rolling bearing 60 is fixed to the end of the column 20 away from the base 10 , and one end of the lead screw 51 is fixed to the inner ring of the rolling bearing 60 .

[0058] It should be noted that the provision of the rolling bearing 60 can reduce the rotational friction of the lead screw 51, thereby improving its rotational efficiency, and further improving the lifting efficiency of the hook head 100 lifting device.

[0059] Specifically, Figures 1 to 4 As shown, in one embodiment, it also includes a second driving mechanism 70, and the second driving mechanism 70 includes a driving part 71 and a transmission part 72, wherein the driving part 71 is arranged on the machine base 10; the transmission part 72 is connected to the driving part 71 and the screw 51; the driving part 71 is used to drive the transmission part 72 to move, and the transmission part 72 is used to drive the screw 51 to rotate.

[0060] Specifically, Figures 1 to 4 As shown, in one embodiment, the transmission part 72 includes a first sprocket, a second sprocket and a transmission chain. The first sprocket is fixed on the outer periphery of the lead screw 51; the second sprocket is fixed on the driving part 71; one end of the transmission chain is meshed with the first sprocket, and the other end of the transmission chain is meshed with the second sprocket; the driving part 71 includes a driving motor 711, the driving end of the driving motor 711 is fixedly connected to the second sprocket, and the first sprocket, the second sprocket and the transmission chain constitute a chain sprocket transmission mechanism.

[0061] Specifically, Figures 1 to 4 As shown, in one embodiment, a control component 80 is further included. The control component 80 is electrically connected to the drive motor 711 and is used to control the start and stop of the drive motor 711.

[0062] Specifically, Figures 1 to 4 As shown, in one embodiment, the driving unit 71 further includes a reducer 712, the input end of the reducer 712 is connected to the driving shaft of the driving motor 711, and the output end of the reducer 712 is connected to the first sprocket. That is, the driving end of the driving motor 711 is fixedly connected to the second sprocket through the reducer 712.

[0063] It should be noted that the column 20 for fixed connection on the base 10 has a guide plate on the outside of the column, and the lower end of the column is equipped with a rolling bearing 60, and the upper end is also equipped with a rolling bearing 60. A lead screw 51 is installed between the two rolling bearings 60, and the lead screw 51 can rotate freely. The upper end of the lead screw is connected to the drive motor 711 by a chain sprocket transmission mechanism, and the chain sprocket transmission mechanism transmits the rotation of the drive motor 711 to the rotation of the lead screw 51. A drive nut 521 is installed on the lead screw 51, and the connector assembly 52 includes a drive nut 521 and a connector 522 arranged on the periphery of the drive nut 521. The lead screw 51 converts the rotation of the drive motor into an up and down linear motion of the drive nut 521 through the drive nut 521. The drive nut 521 21 is fixedly connected to the connecting body 522, and the connecting body 522 is fixedly connected to the lifting vehicle 30. The up and down movement of the driving nut 521 drives the lifting vehicle 30 to move up and down. Guide wheels (first and second rollers) are installed around the lifting vehicle 30, and the guide wheels move along the guide plate of the column 20. An encoder (contained in the control component 80) is connected to the upper end of the screw. The encoder sends a signal to control the rotation speed of the drive motor 711, so that the lifting position of the lifting vehicle 30 is accurate. One end of the lifting vehicle 30 contains an opening, and an external transmission line sends the hook head 100 into the lifting vehicle 30 from the opening. After the control component 80 detects that the hook head 100 is in place, it sends a signal to control the drive motor to start and lift the hook head 100 to the ground.

[0064] From the specific description of the above embodiment, it can be seen that the guide mechanism 40 is integrated in the hook head 100 lifting device. The lifting vehicle 30 is guided by the guide mechanism 40. This ensures that the lifting vehicle 30 slides on the column 20 along the first direction. This prevents the lifting vehicle 30 from getting stuck on the column 20. This ensures that the hook head 100 lifting device can work normally. This further improves the inspection and installation efficiency of the railway freight car coupler.

[0065] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A hook lifting device, characterized in that: include: A machine base, which is fixed on the object to be fixed; as well as A column, which is arranged on the base; as well as A lifting trolley is arranged on the column, the lifting trolley is slidably connected to the column in a first direction, and the lifting trolley is used to lift the hook head; as well as A guide mechanism is arranged between the column and the lifting vehicle, and the guide mechanism is used to guide the lifting vehicle to slide along a first direction.

2. The hook lifting device according to claim 1, characterized in that: The guiding mechanism comprises: A first roller assembly, which is disposed on the lifting vehicle; and a second roller group, which is arranged on the lifting vehicle and corresponds to the first roller group; The first roller group and the second roller group can roll simultaneously on the outer peripheral surface of the column to limit the lifting vehicle to rise and fall along a first direction.

3. The hook lifting device according to claim 2, characterized in that: The column is a square column, and the first roller group includes a plurality of first rollers, which are arranged at intervals along the circumference of the column and can roll on the outer circumferential surface of the column at the same time.

4. The hook lifting device according to claim 3, characterized in that: The column is a square column, and the second roller group includes a plurality of second rollers, which are arranged at intervals along the circumference of the column and can roll simultaneously on the outer circumferential surface of the column, wherein the plurality of second rollers are arranged one-to-one correspondingly to the plurality of first rollers.

5. The hook lifting device according to claim 2, characterized in that: The column is a square column, and the second roller group includes a plurality of second rollers, which are arranged at intervals along the circumference of the column and can roll simultaneously on the outer circumference of the column, wherein the plurality of second rollers are arranged at a certain angle to the plurality of first rollers in the first direction.

6. The hook lifting device according to any one of claims 1 to 5, characterized in that: Also included is a first drive mechanism, comprising: A lead screw rotatably disposed in the column; and a connector assembly, which is sleeved on the outer circumference of the lead screw and is threadedly connected to the lead screw; and A slide groove extending along a first direction is provided on one side of the column, one end of the connector assembly extends from the slide groove and is connected to the lifting vehicle, and the slide groove can prevent the connector assembly from rotating around the lead screw.

7. The hook lifting device according to claim 6, characterized in that: It also includes a rolling bearing, the outer ring of which is fixed on the machine base, and one end of the lead screw is fixed to the inner ring of the rolling bearing, or the outer ring of the rolling bearing is fixed to the end of the column away from the machine base, and one end of the lead screw is fixed to the inner ring of the rolling bearing.

8. The hook lifting device according to claim 6, characterized in that: Also included is a second driving mechanism, wherein the second driving mechanism comprises: A driving unit, which is arranged on the base; and A transmission part connected to the driving part and the lead screw; Wherein, the driving part is used to drive the transmission part to move, and the transmission part is used to drive the lead screw to rotate.

9. The hook lifting device according to claim 8, characterized in that: The transmission part comprises: A first sprocket fixed to the outer periphery of the lead screw; and A second sprocket fixed to the driving portion; and a transmission chain, one end of which is meshed with the first sprocket, and the other end of which is meshed with the second sprocket; Wherein, the driving part comprises a driving motor, a driving end of the driving motor is fixedly connected to the second sprocket, and the first sprocket, the second sprocket and the transmission chain form a chain and sprocket transmission mechanism.

10. The hook lifting device according to claim 9, characterized in that: It also includes a control component, which is electrically connected to the drive motor and is used to control the start and stop of the drive motor.

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