Automatic picking and hanging device

Abstract

The utility model discloses an automatic picking and hanging device, and belongs to the technical field of connecting devices of electric locomotives and trailers. The vehicle body connecting seat is provided with a mounting cavity, one end of the hook body connecting seat is mounted in the center of the mounting cavity through a hanging pin, and the two balance mechanisms are symmetrically arranged on the two sides of the hook body connecting seat, so that the whole device can work normally. The end, away from the trailer body connecting base, of the hook body connecting base is provided with a hook body limiting cavity, one end of the hook body is clamped in the hook body limiting cavity, the end, away from the hook body connecting base, of the hook body is provided with a hook cavity, and a hook is arranged in the hook cavity and used for picking and hanging the trailer hanging pin. The driving mechanism is arranged in the hook body, the reset mechanism is arranged in the hook cavity, and the reset mechanism is used for driving the hook to reset after completing the unhooking action, so that the automatic unhooking action can be realized, a driver does not need to get off in the process, the labor intensity of the driver is greatly reduced, and the unhooking efficiency is improved; and safety accidents such as human-vehicle collision are avoided, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric locomotive and trailer connection devices, in particular to an automatic unhooking and hooking device for an electric locomotive towing a trailer group. Background Art

[0002] During the production and construction of mines, mine rail locomotives are widely used for transportation operations, and usually multiple mine cars are connected in series and pulled by mine locomotives. The mine locomotives and mine cars are connected by hooks, and the traditional hook connection method uses a three-ring chain with a pin, which requires manual unhooking operations.

[0003] When the chain needs to be removed or hung, a driver is required to drive while an assistant gets out of the car to insert or remove the pin. If the two people do not cooperate well, not only will the chain removal fail, but the worker's fingers and legs may be easily injured. This is both labor-intensive and time-consuming, and the chain may easily fall off and break.

[0004] There are mainly the following problems in manual hook removal: First, manual hook removal requires the electric locomotive driver and the hook remover to cooperate repeatedly to align the hole position to complete the hook removal operation, which is labor-intensive and inefficient; second, manual hook removal is prone to misoperation such as untimely hook removal or improper hooking, causing safety accidents such as collisions between people and vehicles, and poor safety; third, the traditional hook connection device has no buffer protection function, especially when the mining electric locomotive is started, stopped, turned, and repeatedly changed slopes, the impact generated will cause the internal part of the hook connection device to wear sharply, shorten the service life, and easily lead to transportation accidents such as accidental unhooking of the hook connection device. The production conditions in the mine are harsh, so a safe, reliable, and flexible electric locomotive automatic hook removal device is extremely needed. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an automatic hooking and unhooking device, which can automatically complete the hooking and unhooking action without the driver getting off the vehicle, so as to solve one or more of the problems existing in manual hooking and unhooking.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The automatic hooking and unhooking device comprises a vehicle body connection seat fixedly mounted on the rear of the electric locomotive, wherein the vehicle body connection seat has a mounting cavity, and further comprises:

[0008] A hook body connecting seat, one end of which is installed in the center of the installation cavity through a hanging pin, and the end of the hook body connecting seat away from the vehicle body connecting seat has a hook body limiting cavity;

[0009] A balancing mechanism, wherein two balancing mechanisms are symmetrically arranged on both sides of the hook body connecting seat, and are used to keep the hook body connecting seat centered in the installation cavity;

[0010] A hook body, one end of which is clamped in the hook body limiting cavity, and an end of the hook body away from the hook body connecting seat is provided with a hook cavity, and a hook is provided in the hook cavity;

[0011] A driving mechanism, disposed in the hook body, for driving the hook to complete the hooking action;

[0012] The reset mechanism is arranged in the hook cavity and is used to drive the hook to complete the hook removal action.

[0013] As a further solution of the utility model: the hook comprises a movable grip and a fixed grip which are relatively arranged, the fixed grip is fixedly arranged on the inner wall of the hook cavity, and the movable grip is rotatably arranged in the hook cavity through a rotating shaft.

[0014] As a further solution of the utility model: the movable grip has an arc-shaped clamping opening on one side relative to the fixed grip, and the arc-shaped clamping opening is used to clamp the trailer hitch pin.

[0015] As a further solution of the utility model: the driving mechanism includes:

[0016] A driving machine is arranged in the hook body, and a movable gripping positioning block is arranged at the end of the output rod of the driving machine, and the movable gripping positioning block is used to lock the movable gripping to realize the hooking;

[0017] A trigger rod is disposed between the driving machine and the movable gripper, and the driving machine can be turned on by the movable gripper touching the trigger rod;

[0018] The unlocking button is arranged in the driving cab of the electric locomotive and is connected to the driving machine for driving the driving machine to move in the reverse direction, so that the movable gripping positioning block is separated from the movable gripping block to realize unhooking.

[0019] As a further solution of the utility model: the reset mechanism includes:

[0020] A reset arm, the center of which is rotatably mounted on the fixed grip through a rotating shaft, and one end of the reset arm is linked to and docked with one end of the movable grip;

[0021] A reset spring has one end fixedly connected to the inner wall of the hook cavity and the other end fixedly connected to an end of the reset arm away from the movable catch. The reset spring is used to restore the movable catch to a hook-off state.

[0022] As a further solution of the utility model: a waist hole is provided at one end of the reset arm, a linkage column is provided at one end of the movable grip, and the linkage column is movably inserted into the waist hole.

[0023] As a further solution of the utility model: the balancing mechanism includes:

[0024] A balancing rod, which passes through the corresponding side wall of the installation cavity, one end of which is rotatably connected to the corresponding side wall of the hook body connecting seat, and the other end of which is slidably connected to the corresponding side wall of the vehicle body connecting seat;

[0025] A balance spring is respectively sleeved on the balance rods located on both sides of the side walls of the installation cavity.

[0026] As a further solution of the utility model: protective covers are respectively provided between the side walls of the installation cavity and the corresponding side walls of the vehicle body connecting seat.

[0027] As a further solution of the utility model: the hook body limiting cavity is filled with a buffer block, and the buffer block is tightly fitted with the end surface of the hook body.

[0028] The utility model has the following beneficial effects:

[0029] The utility model is provided with a driving machine, a trigger rod, a movable grip positioning block, a movable grip and a fixed grip; when the trailer coupling pin pushes the movable grip to rotate until the arc-shaped clamping opening is directly opposite to the fixed grip, the movable grip touches the trigger rod to start the driving machine, and the driving machine drives the movable grip positioning block to lock the movable grip, realizing automatic hooking action;

[0030] The utility model is provided with an unlocking button, a reset arm and a reset spring; the unlocking button is arranged in the cab of the electric locomotive and is connected to the drive motor for communication; the electric locomotive driver presses the unlocking button in the cab to control the drive motor to move in the reverse direction, so that the movable catch positioning block is separated from the movable catch; at this time, the electric locomotive moves forward, the trailer coupling pin is unhooked, the reset spring pulls the reset arm to rotate counterclockwise with the central rotation axis as the axis, and the reset arm drives the movable catch to rotate clockwise with the central rotation axis of the movable catch as the axis, so that the arc-shaped clamping opening of the movable catch is rotated from facing the fixed catch to facing the outside of the hook cavity, so that the movable catch is in the initial state of coupling, and the trailer coupling pin is automatically unhooked;

[0031] The utility model provides a balance rod and a balance spring so that the hook body connected to the hook body connecting seat is always in a centering position, thereby ensuring the normal operation of the hook;

[0032] The utility model fills a buffer block in the limiting cavity of the hook body, and the buffer block fits tightly with the end face of the hook body. By arranging the buffer block, the problem of the traditional hook connection device having no buffer protection function is solved. In particular, when the mining electric locomotive is started and stopped, turned, and repeatedly changes slope, the impact generated will cause the hook connection pin and the inside of the device to wear sharply, shortening the service life, and easily leading to transportation accidents such as accidental unhooking of the hook connection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The utility model is further described below in conjunction with the accompanying drawings.

[0034] Figure 1 This is a schematic diagram of the overall structure of the automatic hanging and removing device of the utility model;

[0035] Figure 2 yes Figure 1 The left side cross-sectional view of the overall structure of the automatic hanging and unhanging device;

[0036] Figure 3 yes Figure 1 Schematic diagram of the overall structure of the automatic hanging and removing device from above.

[0037] In the figure: 1. vehicle body connecting seat; 11. installation cavity; 2. hook body connecting seat; 21. hook body limiting cavity; 22. buffer block; 3. hitch pin; 4. balancing mechanism; 41. balance bar; 42. balance spring; 5. hook body; 51. hook cavity; 6. hook; 61. movable grip; 62. fixed grip; 7. driving mechanism; 71. driving machine; 72. movable grip positioning block; 73. trigger rod; 8. reset mechanism; 81. reset arm; 82. reset spring; 83. waist hole; 84. linkage column; 9. trailer hitch pin; 10. protective cover. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1-3 As shown, an embodiment of the utility model provides an automatic hooking and unhooking device, including a vehicle body connecting seat 1 fixedly mounted on the rear of the electric locomotive, a hook body connecting seat 2, a balancing mechanism 4, a hook body 5, a driving mechanism 7 and a resetting mechanism 8.

[0040] Specifically, if Figure 1 As shown, the vehicle body connection seat 1 has a mounting cavity 11, one end of the hook body connection seat 2 is mounted in the center of the mounting cavity 11 through a hook pin 3, and two balancing mechanisms 4 are symmetrically arranged on both sides of the hook body connection seat 2 to keep the hook body connection seat 2 centered in the mounting cavity 11 so that the entire device can work normally. Figure 3As shown, the end of the hook body connecting seat 2 away from the vehicle body connecting seat 1 has a hook body limiting cavity 21, one end of the hook body 5 is clamped in the hook body limiting cavity 21, and the end of the hook body 5 away from the hook body connecting seat 2 is provided with a hook cavity 51, and a hook 6 is provided in the hook cavity 51, and the hook 6 performs the unhooking action on the trailer hooking pin 9; the driving mechanism 7 is arranged in the hook body 5, and the driving mechanism 7 is used to drive the hook 6 to complete the hooking action; the reset mechanism 8 is arranged in the hook cavity 51, and is used to drive the hook 6 to reset after completing the unhooking action, thereby realizing the automatic unhooking action. During this process, the driver does not need to get off the vehicle, which greatly reduces the driver's labor intensity and improves the efficiency of unhooking, and avoids safety accidents such as collision between people and vehicles, with high safety.

[0041] Furthermore, the hook body limiting cavity 21 is filled with a buffer block 22, and the buffer block 22 fits tightly with the end face of the hook body 5. By providing the buffer block 22, the problem of the traditional hook connection device having no buffer protection function is solved. In particular, when the mining electric locomotive is started and stopped, turned, and repeatedly changes slope, the impact generated will cause the hook connection pin and the inside of the device to wear sharply, shortening the service life, and easily leading to transportation accidents such as accidental unhooking of the hook connection device.

[0042] like Figure 3 As shown, in one embodiment, the hook 6 includes a movable grip 61 and a fixed grip 62 that are relatively arranged. The fixed grip 62 is fixedly arranged on the inner wall of the hook cavity 51, and the movable grip 61 is rotatably arranged in the hook cavity 51 through a rotating shaft. Specifically, the movable grip 61 has an arc-shaped clamping opening on one side relative to the fixed grip 62, and the arc-shaped clamping opening is used to clamp the trailer hitch pin 9.

[0043] During specific implementation, when the trailer coupling pin 9 pushes the movable catch 61 to rotate until the arc-shaped clamp is opposite to the fixed catch 62, the driving mechanism 7 is started to fix the movable catch 61 in the hook cavity 51, so that the trailer coupling pin 9 can be limited to the arc-shaped clamp of the movable catch 61, and the hooking action is completed. At this time, the trailer group and the electric locomotive are completely coupled, and the electric locomotive can tow the trailer group to move; when it is necessary to unhook, the electric locomotive driver remotely controls the start of the driving mechanism 7 in the cab to return the driving motor 71 to its original state, that is, the movable catch 61 is released. At this time, under the drive of the reset mechanism 8, the movable catch 61 also returns to its initial open state, that is, the arc-shaped clamp faces outside the hook cavity 51, and the trailer coupling pin 9 is free, completing the unhooking action.

[0044] Combination Figure 2 and Figure 3 As shown, in one embodiment, the driving mechanism 7 includes a driving machine 71, a trigger rod 73 and an unlocking button (not shown). Figure 2 As shown, the driving machine 71 is arranged in the hook body 5, as shown in FIG. Figure 3As shown, a movable grab positioning block 72 is provided at the end of the output rod of the driving motor 71, and the movable grab positioning block 72 is used to lock the movable grab 61; a trigger rod 73 is arranged between the driving motor 71 and the movable grab 61, and when the trailer coupling pin 9 pushes the movable grab 61 to rotate until the arc-shaped clamp is directly opposite to the fixed grab 62, the movable grab 61 touches the trigger rod 73 to start the driving motor 71, and the driving motor 71 drives the movable grab positioning block 72 to lock the movable grab 61 to achieve the hooking action; an unlocking button is arranged in the cab of the electric locomotive and is communicated with the driving motor 71. When it is necessary to unhook, the electric locomotive driver presses the unlocking button in the cab to control the driving motor 71 to move in the opposite direction, so that the movable grab positioning block 72 is separated from the movable grab 61 to achieve unhook.

[0045] like Figure 3 As shown, in one embodiment, the reset mechanism 8 includes a reset arm 81 and a reset spring 82. The center of the reset arm 81 is rotatably mounted on the fixed catch 62 through a rotating shaft, and one end of the reset arm 81 is linked and docked with one end of the movable catch 61; specifically, a waist hole 83 is provided at one end of the reset arm 81, and a linkage column 84 is provided at one end of the movable catch 61, and the linkage column 84 is movably inserted into the waist hole 83. One end of the reset spring 82 is fixedly connected to the inner wall of the hook cavity 51, and the other end is fixedly connected to one end of the reset arm 81 away from the movable catch 61, and the reset spring 82 is used to restore the movable catch 61 to the unhooking state.

[0046] During the unhooking process, after the movable grab positioning block 72 is separated from the movable grab 61, the movable grab 61 regains its freedom. At this time, the reset spring 82 exerts force to pull the reset arm 81 to rotate counterclockwise with the central rotation axis as the axis, and the reset arm 81 drives the movable grab 61 to rotate clockwise with the central rotation axis of the movable grab 61 as the axis, and the arc-shaped clamping mouth of the movable grab 61 is rotated from facing the fixed grab 62 to facing the outside of the hook cavity 51. The trailer coupling pin 9 can complete the unhooking action, and the waist hole 83 limits the rotation range of the movable grab 61. The linkage column 84 moves from one end of the waist hole 83 to the other end, that is, the rotation range of the movable grab 61.

[0047] like Figure 3 As shown, in one embodiment, the balancing mechanism 4 includes a balancing rod 41 and a balancing spring 42. The balancing rod 41 penetrates the corresponding side wall of the installation cavity 11, one end of the balancing rod 41 is rotatably connected to the corresponding side wall of the hook body connecting seat 2, and the other end is slidably connected to the corresponding side wall of the vehicle body connecting seat 1; the balancing spring 42 is located on both sides of the side wall of the installation cavity 11. A group of balancing springs 42 are respectively sleeved on the balancing rod 41. By symmetrically arranging the balancing rod 41 and the balancing spring 42 on both sides of the hook body connecting seat 2, the hook body 5 connected to the hook body connecting seat 2 is always in a centered position, ensuring the normal operation of the hook 6.

[0048] It is understandable that due to the harsh production environment of mines, protective covers 10 are respectively provided between the side walls of the installation cavity 11 and the corresponding side walls of the vehicle body connecting seat 1 to protect the device and increase the service life of the device.

[0049] The working principle of this utility model:

[0050] Hooking action: when the electric locomotive retreats and is hooked to the trailer group, the trailer hooking pin 9 enters the arc-shaped clamping opening of the movable grab 61 to push the movable grab 61, causing the movable grab 61 to rotate. When the movable grab 61 rotates to the point where the arc-shaped clamping opening is directly opposite to the fixed grab 62, the movable grab 61 touches the trigger rod 73, and the trigger rod 73 sends an electrical signal to the drive mechanism 7 to activate the drive mechanism 7. The drive mechanism 7 drives the movable grab positioning block 72 to lock the movable grab 61, thereby completing the fixation of the trailer hooking pin 9 by the movable grab 61. Under the clamping of the movable grab 61 and the fixed grab 62, the hooking of the traction locomotive and the trailer group is completed.

[0051] Uncoupling action: When the electric locomotive and the trailer need to be detached, the driver in the cab of the electric locomotive presses the unlocking button to control the driving motor 71 to move in the reverse direction, so that the movable grip positioning block 72 is detached from the movable grip 61. Under the action of the reset mechanism 8, the movable grip 61 moves forward with the electric locomotive to complete the uncoupling action.

[0052] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation. Therefore, it should not be understood as a limitation on the present invention.

[0053] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0054] The above detailed description of the preferred embodiments of the utility model should not be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. An automatic hooking and unhooking device, comprising a vehicle body connection seat (1) fixedly mounted on the rear of an electric locomotive, wherein the vehicle body connection seat (1) has a mounting cavity (11), characterized in that: Also includes: A hook body connecting seat (2), one end of which is installed in the center of the installation cavity (11) through a hook pin (3), and the end of the hook body connecting seat (2) away from the vehicle body connecting seat (1) has a hook body limiting cavity (21); A balancing mechanism (4), wherein two balancing mechanisms (4) are symmetrically arranged on both sides of the hook body connecting seat (2) and are used to keep the hook body connecting seat (2) centered in the installation cavity (11); A hook body (5), one end of which is clamped in the hook body limiting cavity (21); a hook cavity (51) is provided at one end of the hook body (5) away from the hook body connecting seat (2); a hook (6) is provided in the hook cavity (51); A driving mechanism (7), disposed in the hook body (5), and used for driving the hook (6) to complete a hooking action; A reset mechanism (8) is arranged in the hook cavity (51) and is used to drive the hook (6) to reset after completing the hook removal action.

2. The automatic hanging and removing device according to claim 1 is characterized in that: The hook (6) comprises a movable grip (61) and a fixed grip (62) which are arranged opposite to each other, wherein the fixed grip (62) is fixedly arranged on the inner wall of the hook cavity (51), and the movable grip (61) is rotatably arranged in the hook cavity (51) via a rotating shaft.

3. The automatic hanging and removing device according to claim 2 is characterized in that: The movable grip (61) has an arc-shaped clamping opening on one side relative to the fixed grip (62), and the arc-shaped clamping opening is used to clamp the trailer hitch pin (9).

4. The automatic hanging and removing device according to claim 3 is characterized in that: The driving mechanism (7) comprises: A driving machine (71) is arranged in the hook body (5), and an active gripping positioning block (72) is arranged at the end of an output rod of the driving machine (71), and the active gripping positioning block (72) is used to lock the active gripping (61) to realize hooking; A trigger rod (73) is disposed between the driving machine (71) and the movable gripper (61), and the driving machine (71) can be started when the movable gripper (61) touches the trigger rod (73); An unlocking button is arranged in the driving cab of the electric locomotive and is connected to the driving machine (71) for driving the driving machine (71) to move in the reverse direction, so that the movable gripping positioning block (72) is separated from the movable gripping (61) to achieve unhooking.

5. The automatic hanging and removing device according to any one of claims 2 to 4, characterized in that: The reset mechanism (8) comprises: A reset arm (81), the center of which is rotatably mounted on the fixed grip (62) via a rotating shaft, and one end of the reset arm (81) is linked and docked with one end of the movable grip (61); A return spring (82) has one end fixedly connected to the inner wall of the hook cavity (51) and the other end fixedly connected to an end of the return arm (81) away from the movable catch (61). The return spring (82) is used to restore the movable catch (61) to a hook-off state.

6. The automatic hanging and removing device according to claim 5 is characterized in that: A waist hole (83) is provided at one end of the reset arm (81), and a linkage column (84) is provided at one end of the movable grip (61), and the linkage column (84) is movably inserted into the waist hole (83).

7. The automatic hanging and removing device according to claim 1 is characterized in that: The balancing mechanism (4) comprises: A balancing rod (41) passes through the corresponding side wall of the installation cavity (11), one end of the balancing rod (41) is rotatably connected to the corresponding side wall of the hook body connecting seat (2), and the other end is slidably connected to the corresponding side wall of the vehicle body connecting seat (1); A group of balancing springs (42) are respectively sleeved on the balancing rod (41) located on both sides of the side walls of the installation cavity (11).

8. The automatic hanging and removing device according to claim 7 is characterized in that: Protective covers (10) are also provided between the side walls of the installation cavity (11) and the corresponding side walls of the vehicle body connecting seat (1).

9. The automatic hanging and removing device according to claim 1 is characterized in that: The hook body limiting cavity (21) is filled with a buffer block (22), and the buffer block (22) is tightly fitted to the end surface of the hook body (5).

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