CN119841218A

CN119841218A - Mine electric locomotive rail transportation hoisting accessory

Info

Publication number: CN119841218A
Application number: CN202510338572.9A
Authority: CN
Inventors: 陈献忠; 陈柏志; 蔡尚松; 颜渐德; 吴圆; 贺洋; 杨德生
Original assignee: Hunan Xiangqian Industries Co ltd
Current assignee: Hunan Xiangqian Industries Co ltd
Priority date: 2025-03-21
Filing date: 2025-03-21
Publication date: 2025-04-18
Anticipated expiration: 2045-03-21
Also published as: CN119841218B

Abstract

The invention discloses a rail transportation lifting device for a mine electric locomotive, and relates to the technical field of lifting, comprising a travelling wheel, a lifting beam and a lifting beam, wherein the travelling wheel is assembled on the electric locomotive and the lifting beam; the hanging beam is lifted by crane, a hanging steel rope is arranged on a main winding drum arranged on the hanging beam, the hanging steel rope penetrates through a pulley and a hanging wheel and is wound on the main winding drum, a hook extension assembly is movably connected to the hanging wheel, the hook extension assembly comprises a hook frame, and a limiting part for preventing a hook piece from shaking is arranged on the hook frame. When the hung object is staggered with the hook, the hook is pulled to be hooked at the hanging point, the hook extension assembly does not need to be lengthened, the hung object does not need to be moved, and the hung object at the staggered position can be hung. The hook sleeve is contacted with the plurality of balance weight rods, the balance weight rods drive the connecting rods and the limiting plates to reversely rotate until the plurality of limiting plates are propped against the outer peripheral surface of the hook sleeve, at the moment, the main winding drum stops working, and the swinging time of the hook sleeve in the through hole is shortened.

Description

Mine electric locomotive rail transportation hoisting accessory

Technical Field

The invention relates to the technical field of lifting, in particular to a rail transportation lifting device for a mine electric locomotive.

Background

With the development of coal industry, most of transportation work of underground equipment, materials and the like is carried out by adopting mine overhead electric locomotives to pull mine cars through rails. The lifting hook is only used for clamping and fixing the lifting hook during transportation, the clamping and limiting effect on a cable above the lifting hook is poor, the lifting machine can shake due to the fact that the position of a hanging point of a hung object deviates from a hook during lifting or inertia and the like generated in the starting and stopping process of the lifting machine, meanwhile, the hung object is required to be put down after stopping shaking, the efficiency is influenced by working time, a plurality of pulleys are used for limiting the steel rope during shaking of the hung object, then when the connected hook is staggered from the position of the hanging point due to the anti-shaking characteristic of the pulley, the hanging object is required to be integrally moved or the steel rope is in a loosening state after being excessively put down, the hook is hooked on the hanging point, the hung object is difficult to push when the weight of the hung object exceeds more than tens of kilograms, and the steel rope is easy to separate from the pulleys when the steel rope is in a loosening state.

Disclosure of Invention

The invention aims to provide a rail transportation lifting device for a mine electric locomotive, which is provided with a lifting object at a staggered position without lengthening a hook extension assembly or moving the lifting object, and a steel rope is always in a tight state and cannot be separated from a pulley. The hook sleeve rises to contact with the plurality of balance weight rods, and the plurality of limiting plates are propped against the outer peripheral surface of the hook sleeve, so that the swing time of the hook sleeve in the through hole is shortened.

In order to achieve the purpose, the invention provides the following technical scheme that the rail transportation lifting device for the mine electric locomotive comprises the following components:

the travelling wheel is assembled on the electric locomotive and the lifting cantilever beam;

The rail is arranged at the top of the mine, and the electric locomotive and the lifting cantilever beam move along the rail through the travelling wheels;

The hoisting device comprises a main winding drum, a hoisting beam and a hoisting wheel, wherein the main winding drum is arranged on the hoisting beam, a hoisting steel rope is arranged on the main winding drum, a pulley is arranged on the bottom of the hoisting beam, the hoisting steel rope passes through the pulley and the hoisting wheel and is wound on the main winding drum, and a hook extension assembly is movably connected on the hoisting wheel;

The hook extension assembly comprises an auxiliary winding drum, a hook steel rope, a hook frame and a hook piece, wherein two ends of the auxiliary winding drum are connected with the hanging wheel, the hook frame is penetrated by the auxiliary winding drum and rotates around the auxiliary winding drum, one end of the hook steel rope is wound on the auxiliary winding drum to be fixed, the other end of the hook steel rope is connected with the hook piece, and a limiting part for preventing the hook piece from shaking is arranged on the hook frame.

Further, a block body is arranged in the hook frame, and a through hole for the hook steel rope and the hook piece to be inserted is formed in the block body.

Further, the hook piece comprises a hook sleeve, wherein the top of the hook sleeve is fixed with the hook steel rope, and the hook sleeve is in threaded connection with a rod body of the hook.

Further, wheel covers are symmetrically fixed on the outer walls of the two sides of the hook frame, the hanging wheels are arranged in the wheel covers, arc grooves are formed in the tops of the wheel covers, and the hanging steel ropes penetrate through the arc grooves and are wound on the hanging wheels.

Further, the suspension steel rope is fixed on the main winding drum sequentially through the suspension wheel on one side, the pulley and the suspension wheel on the other side, and the suspension wheels and the pulleys on the two sides play a limiting role on the suspension steel rope and are used for preventing the suspension steel rope from shaking in the suspension process.

Further, the limiting part comprises a limiting ring, a limiting plate, a counterweight rod and a connecting rod, wherein the limiting ring is assembled in the hanger, the connecting rod rotates around the limiting ring, and two ends of the connecting rod are respectively hinged with the counterweight rod and the limiting plate.

Further, the connecting rod is composed of a straight arm part and a bending part, a cylinder body connected to the bending part is sleeved on the limiting ring to rotate, the counterweight rod is horizontally arranged, and the weight of the counterweight rod exceeds the weight of the straight arm part and the limiting plate.

Further, the limiting part comprises a limiting ring which is assembled in the hook frame, the limiting ring is sleeved with a plurality of rotatable retaining plates, and a damper hinged to the bottom edge of each retaining plate is fixed with the inner wall of the through hole;

The rotating sleeve is arranged in the through hole above the limiting ring and rotates, the spiral rod is meshed with the rotating sleeve, the spiral rod moves up and down to rotate the rotating sleeve, the spiral rod is located on the outer wall above the rotating sleeve and is wound with the reinforced steel cable, and the other end of the reinforced steel cable penetrates through the arc groove at the bottom end of the retaining plate and is fixed on the retaining plate.

Further, the plurality of retaining plates are arranged and rotate around the limiting ring to form an expanded or contracted state under the pulling of the reinforced steel cable, and the retaining plates form a cylinder piece against the hook sleeve in the contracted state.

Further, a reset plate connected with the top of the screw rod is connected with the limiting ring through a spring.

The invention has the technical effects and advantages that:

1. When the main winding drum positively rotates to suspend the steel rope to be lengthened, the steel rope of the hook is synchronously lengthened, when the suspended object is staggered with the hook, the hook is pulled to be hooked at the hanging point, the hook extension assembly is not required to be lengthened, the suspended object at the staggered position is not required to be moved, the suspended object at the staggered position can be lifted, and the steel rope is always in a tight state and cannot be separated from the pulley.

2. The hook sleeve is inserted into the through hole in the process of upward movement and swing, the hook sleeve is contacted with the plurality of balance weight rods, the balance weight rods drive the connecting rods and the limiting plates to reversely rotate, the limiting plates and the hook sleeve swing in opposite directions, the limiting plates limit the swing amplitude of the hook sleeve until the plurality of limiting plates are propped against the outer peripheral surface of the hook sleeve, at the moment, the main winding drum stops working, and the swing time of the hook sleeve in the through hole is shortened.

Drawings

FIG. 1 is a top view of the overall structure of the present invention;

FIG. 2 is a diagram of the overall bottom view of the present invention;

FIG. 3 is a block diagram of a lifting sling according to the present invention;

FIG. 4 is a block diagram of a hook extension assembly of the present invention;

FIG. 5 is a split view of the hook member of the present invention;

FIG. 6 is a view showing a state that the limiting part of the invention does not clamp the shackle;

FIG. 7 is a block diagram of a spacing portion of the present invention;

FIG. 8 is a block diagram of a retainer portion according to another embodiment of the present invention;

fig. 9 is a partially exploded view of the stopper portion of the present invention.

In the figure:

1. The hoisting device comprises a trolley wheel, 2, a track, 3, a hoisting cantilever beam, 31, a main winding drum, 32, a hoisting steel rope, 33, a pulley, 34, a hoisting wheel, 4, a hook extension assembly, 41, a secondary winding drum, 42, a hook steel rope, 43, a hook frame, 431, a block, 432, a wheel cover, 45, a hook piece, 451, a hook sleeve, 452, a hook, 5, a limiting part, 51, a limiting ring, 511, a bearing plate, 52, a limiting plate, 53, a counterweight rod, 54, a connecting rod, 541, a straight arm part 542, a bending part, 55, a screw rod, 56, a rotating sleeve, 57, a reinforced steel rope, 58, a damper, 6 and an electric locomotive.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which may be made by those skilled in the art without the benefit of the teachings of the present invention, are intended to be within the scope of the invention, and in the description of the invention, it should be understood that references to directions or positional relationships indicated by the drawings, such as up, down, front, back, left, right, etc., are based on the directions or positional relationships indicated in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.

In order to better understand the rail transportation lifting device for the mine electric locomotive provided by the embodiment, when the crane lifts, the lifted object can shake due to the reasons of deviation between the position of the lifting point of the lifted object and the hook or inertia generated in the starting and stopping processes of the crane, and the description aims to solve the technical problems.

Embodiment one referring to fig. 1, for a first embodiment of the present invention, there is provided a rail transportation lifting device for a mine electric locomotive, including:

The trolley wheel 1 is assembled on the electric locomotive 6 and the lifting cantilever beam 3, the trolley wheel 1 is connected with a motor on the electric locomotive 6, the power of the motor is controlled by the electric locomotive 6, and the motor and the trolley wheel 1 are driven to work by the electric locomotive 6, so that the trolley wheel 1 can move forwards or backwards along the track 2 in a rotating way;

The track 2 is arranged at the top of a mine, the electric locomotive 6 and the lifting cantilever beam 3 move along the track 2 through the travelling wheels 1, the track 2 adopts a monorail structure so as to adapt to a narrow passage in the mine, and the electric locomotive 6 of the device can be arranged by adopting a trolley type electric locomotive or a storage battery type electric locomotive according to requirements;

Referring to fig. 2 to 4, a hanging beam 3 is lifted, a hanging steel rope 32 is arranged on a main winding drum 31 arranged on the hanging beam 3, a pulley 33 is arranged on the bottom of the hanging beam 3, the hanging steel rope 32 passes through the pulley 33 and a hanging wheel 34 and is wound on the main winding drum 31, and a hook extension assembly 4 is movably connected on the hanging wheel 34;

Specifically, the length and the width of the lifting suspension beam 3 are set according to the size of a mine, a speed reducer connected with the main winding drum 31 and a driving motor are arranged on the lifting suspension beam 3, the motor is controlled by the electric locomotive 6, and the motor transmits power to the speed reducer to drive the main winding drum 31 to rotate forward and reversely so as to roll up or put down the suspension steel rope 32, and the hook extension assembly 4 is pulled to ascend or descend through the suspension steel rope 32.

Referring to fig. 4 to 5, a block 431 is installed in the hanger 43, and a through hole into which the hanger wire 42 and the hanger 45 are inserted is opened in the block 431.

The hook member 45 comprises a hook sleeve 451, the top of which is fixed with the hook steel rope 42, the hook sleeve 451 is in threaded connection with the rod body of the hook 452, and the hook sleeve 451 and the hook 452 are conveniently replaced through threads.

Wheel covers 432 are symmetrically fixed on the outer walls of the two sides of the hook frame 43, the hanging wheel 34 is arranged in the wheel covers 432, an arc-shaped groove is formed in the top of the wheel covers 432, and the hanging steel rope 32 passes through the arc-shaped groove and is wound on the hanging wheel 34.

The suspension wire 32 is fixed on the main drum 31 through a suspension wheel 34 on one side, a pulley 33 and a suspension wheel 34 on the other side in sequence, and the suspension wheel 34 and the pulley 33 on both sides play a limiting role on the suspension wire 32 for preventing the suspension wire 32 from shaking during the suspension process.

However, the suspension wire 32 solves the problem of shaking due to the structural arrangement of the suspension wheel 34 and the pulley 33, but the suspension wire 32 is prevented from shaking, so that the directly connected hook 452 moves up and down along the vertical direction, if the suspension point of the suspended object is staggered from the position of the hook 452, the suspended object needs to be moved to align the suspension point with the hook 452, or the suspension wire 32 is continuously lengthened to enable the hook extension assembly 4 to be positioned below the level of the suspension point, and then the suspension wire 32 is not stretched to be in tension, and the hook 452 can be driven to be hooked on the suspension point by moving the hook extension assembly 4.

The hook extension assembly 4 for solving the problem can solve the problem that the suspended object shakes, and can avoid the need of lengthening the suspending steel rope 32 or moving the suspended object when the suspending point of the suspended object is staggered with the hook 452.

The hook extension assembly 4 comprises a secondary winding drum 41, a hook steel rope 42, a hook frame 43 and a hook piece 45, wherein two ends of the secondary winding drum 41 are connected with the hanging wheel 34, the hook frame 43 is penetrated by the secondary winding drum 41 and rotates around the secondary winding drum 41, one end of the hook steel rope 42 is wound on the secondary winding drum 41 to be fixed, the other end of the hook steel rope 42 is connected with the hook piece 45, and a limiting part 5 for preventing the hook piece 45 from shaking is arranged on the hook frame 43.

The auxiliary drum 41 and the hanging drum 34 rotate synchronously, the hanging rack 43 can rotate around the auxiliary drum 41, the hanging drum 34 and the auxiliary drum 41 can be driven to rotate synchronously positively or negatively in the process of lengthening or shortening the hanging steel rope 32, the main drum 31 rotates positively while the auxiliary drum 41 rotates positively when the hanging steel rope 32 is lengthened, the main drum 31 rotates synchronously to lengthen the hanging steel rope 42, and the hanging hook 452 can be separated from the hanging hook piece 45.

Through the above structure, when the main drum 31 is rotating and the hanging steel rope 32 is lengthened, the hanging steel rope 42 is synchronously lengthened, and the hanging steel rope 42 and the hanging steel rope 452 can move in random directions, when the hung object is staggered with the hanging steel rope 452, the hanging steel rope 452 can be pulled to be hooked at the hanging point through the above structure, the hanging steel rope 32 does not need to be lengthened, the hanging object does not need to be moved, and meanwhile, the hanging steel rope 32 is always in a tight state and cannot be separated from the pulley 33.

Along with the shortening of the suspension steel rope 32 to drive the hook extension assembly 4 to ascend, the hook steel rope 42 also synchronously rotates around the auxiliary winding drum 41 to shorten the length, the hook 452 synchronously ascends until the hook 452 and the hook sleeve 451 are inserted into the through hole of the hook piece 45, the hook 452 and the hook sleeve 451 are limited by the hook piece 45, the hook piece 45 reduces the shaking amplitude of the hook 452 when the crane moves to start and stop, the phenomenon that the existing suspended object is in a crane stop state is avoided, the braking time needs to be prolonged to reduce the influence of inertia on the suspended object in order to reduce the shaking, and meanwhile, the suspended object can be put down only when the shaking amplitude is reduced.

In the second embodiment of the present invention, referring to fig. 6 to 7, unlike the first embodiment, since the hanging point of the hanging object is staggered with the hanging hook 452, the hanging object swings when the hanging hook 452 lifts the hanging object, and the hanging object is difficult to insert into the through hole of the hanging hook 45 when swinging, and the hanging hook 452 and the hanging hook sleeve 451 can be inserted into the through hole of the hanging hook 45 only when the swinging amplitude of the hanging object is small, in order to solve the above problems, the limiting part 5 is provided for limiting the hanging hook 452 and the hanging hook sleeve 451 so as to reduce the waiting time.

The limiting part 5 comprises a limiting ring 51, a limiting plate 52, a counterweight rod 53 and a connecting rod 54, wherein the limiting ring 51 is assembled in the hook frame 43, the connecting rod 54 rotates around the limiting ring 51, and two ends of the connecting rod 54 are respectively hinged with the counterweight rod 53 and the limiting plate 52.

The connecting rod 54 is composed of a straight arm 541 and a curved portion 542, a cylinder body connected to the curved portion 542 is sleeved on the limit ring 51 to rotate, the weight lever 53 is horizontally arranged, and the weight of the weight lever 53 exceeds the weight of the straight arm 541 and the limit plate 52.

The limiting ring 51 provides support for the connecting rod 54, the connecting rod 54 can rotate around the limiting ring 51, the weight of the counterweight rod 53 exceeds the straight arm 541 and the limiting plates 52, the hook sleeve 451 contacts with the plurality of counterweight rods 53 in the upward moving and swinging process, when the hook sleeve 451 swings, the hook sleeve 451 can abut against the counterweight rod 53 to drive the connecting rod 54 and the limiting plates 52 to reversely rotate when the hook sleeve 451 swings to one side, the limiting plates 52 and the hook sleeve 451 swing in opposite directions, the limiting plates 52 limit the swinging amplitude of the hook sleeve 451, when the hook sleeve 451 swings in which direction, the limiting plates 52 limit the amplitude of the hook sleeve 451 to be larger, so that the hook sleeve 451 is continuously limited to swing until the plurality of limiting plates 52 abut against the outer peripheral surface of the hook sleeve 451, at this time, the main winding drum 31 stops working, and the limiting plates 52 are arranged to stop the hook sleeve 451 and the hook sleeve 452 from swinging, so that the swinging time of the hook sleeve 451 in the through hole is shortened.

When the main drum 31 rotates reversely, the hanging steel rope 32 and the hook steel rope 42 are synchronously stretched, the hook sleeve 451 and the counterweight rod 53 are separated under the action of gravity, the counterweight rod 53 is slowly moved downwards with the hook sleeve 451, and the limiting plate 52 is unfolded to be separated from the hook sleeve 451, so that the hung object falls from the vertical direction.

Referring to fig. 8-9, in a third embodiment of the present invention, the limit part 5 of the present embodiment is different from the second embodiment, and the rest of the structure is the same as the first embodiment, the limit part 5 includes a limit ring 51 assembled in the hanger 43, the limit ring 51 is sleeved with a plurality of rotatable retaining plates 511, and a damper 58 hinged to the bottom edge of the retaining plate 511 is fixed to the inner wall of the through hole;

The rotating sleeve 56 is arranged in the through hole above the limiting ring 51 and rotates, the spiral rod 55 is meshed with the rotating sleeve 56, the spiral rod 55 moves up and down to rotate the rotating sleeve 56, the spiral rod 55 is positioned on the outer wall above the rotating sleeve 56, the reinforcing steel cable 57 is wound on the outer wall, and the other end of the reinforcing steel cable 57 penetrates through the arc groove at the bottom end of the retaining plate 511 and is fixed on the retaining plate 511.

The retaining plates 511 are provided in a plurality, and the retaining plates 511 are rotated around the limiting rings 51 to form an expanded or contracted state by the pulling of the reinforcing steel ropes 57, and the retaining plates 511 form a barrel against the hook sleeve 451 in the contracted state. The reset plate connected to the top of the screw 55 is spring-loaded into the stop collar 51.

The rotating sleeve 56 can rotate around the limiting ring 51, the whole rotating sleeve 56 is fixed, the hook sleeve 451 moves upwards and abuts against the spiral rod 55 to push the spiral rod 55 to move upwards, the spiral rod 55 pushes the rotating sleeve 56 to rotate in the upward moving process, the reset plate is also abutted against the upward moving process by the spiral rod 55, the spring is lengthened, the reinforcing steel rope 57 is wound up after the rotating sleeve 56 rotates, the bottom ends of the plurality of the abutment plates 511 are pulled to shrink when the reinforcing steel rope 57 is wound up, the damper 58 is lengthened when the abutment plates 511 shrink, the shrinkage uniformity of the abutment plates 511 is kept, the damper 58 can also provide support for the end corners of the abutment plates 511, the reinforcing steel rope 57 can also provide support force for the plurality of the abutment plates 511 so as to resist collision impact force generated by the swinging of the hook sleeve 451 until the abutment plates 511 shrink against the hook sleeve 451, so as to ensure the clamping force on the hook sleeve 451, the swinging time of the hook sleeve 451 in the through holes is shortened, and meanwhile, the set round of reinforcing steel rope 57 can also limit the hook steel rope 42, and the hook steel rope 42 is prevented from moving to the back of the abutment plates 511 in the swinging process.

It should be noted that, although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, and improvements to some of the technical features described in the foregoing embodiments may be made by those skilled in the art, and all modifications, equivalents, improvements and modifications are intended to be included in the scope of the present invention.

Claims

1. A rail transit lifting device for a mine electric locomotive, comprising:

The travelling wheel (1) is assembled on the electric locomotive (6) and the lifting cantilever beam (3);

The track (2) is arranged at the top of the mine, and the electric locomotive (6) and the lifting suspension beam (3) move along the track (2) through the travelling wheels (1);

The hoisting device comprises a hoisting cantilever (3), wherein a main winding drum (31) arranged on the hoisting cantilever (3) is provided with a suspension steel rope (32), the bottom of the hoisting cantilever (3) is provided with a pulley (33), the suspension steel rope (32) passes through the pulley (33) and a suspension wheel (34) and is wound on the main winding drum (31), and the suspension wheel (34) is movably connected with a hook extension assembly (4);

The hook extension assembly (4) comprises a secondary winding drum (41), a hook steel rope (42), a hook frame (43) and a hook piece (45), wherein two ends of the secondary winding drum (41) are connected with the suspension wheel (34), the hook frame (43) is penetrated by the secondary winding drum (41) and rotates around the secondary winding drum (41), one end of the hook steel rope (42) is wound on the secondary winding drum (41) to be fixed, the other end of the hook steel rope (42) is connected with the hook piece (45), and a limiting part (5) for preventing the hook piece (45) from shaking is arranged on the hook frame (43).

2. The rail transportation lifting device for the mine electric locomotive according to claim 1, wherein a block body (431) is installed in the hook frame (43), and through holes for inserting a hook steel rope (42) and a hook piece (45) are formed in the block body (431).

3. The rail transportation lifting device for the mine electric locomotive according to claim 1, wherein the hook piece (45) comprises a hook sleeve (451) and a hook steel rope (42) which are fixed, and the hook sleeve (451) is in threaded connection with a rod body of the hook (452).

4. The rail transportation lifting device for the mine electric locomotive according to claim 1, wherein wheel covers (432) are symmetrically fixed on the outer walls of two sides of the hook frame (43), the hanging wheels (34) are arranged in the wheel covers (432), arc-shaped grooves are formed in the tops of the wheel covers (432), and the hanging steel ropes (32) penetrate through the arc-shaped grooves and are wound on the hanging wheels (34).

5. The rail transportation lifting device for the electric locomotive of the mine according to claim 1, wherein the hook steel rope (42) is fixed on the main winding drum (31) through a hanging wheel (34) on one side, a pulley (33) and a hanging wheel (34) on the other side in sequence, and the hanging wheels (34) and the pulley (33) on two sides play a limiting role on the hanging steel rope (32) for preventing the hanging steel rope (32) from shaking in the hanging process.

6. The rail transportation lifting device for the mine electric locomotive according to claim 5, wherein the limiting part (5) comprises a limiting ring (51), a limiting plate (52), a counterweight rod (53) and a connecting rod (54), the limiting ring (51) is assembled in the hanger bracket (43), the connecting rod (54) rotates around the limiting ring (51), and two ends of the connecting rod (54) are hinged with the counterweight rod (53) and the limiting plate (52) respectively.

7. The rail transportation lifting device for the mine electric locomotive according to claim 6, wherein the connecting rod (54) is composed of a straight arm portion (541) and a bending portion (542), a cylinder body connected to the bending portion (542) is sleeved on the limiting ring (51) to rotate, the counterweight rod (53) is horizontally arranged, and the weight of the counterweight rod (53) exceeds the weight of the straight arm portion (541) and the limiting plate (52).

8. The rail transportation lifting device for the mine electric locomotive according to claim 5, wherein a limiting ring (51) included in the limiting part (5) is assembled in the hook frame (43), the limiting ring (51) is sleeved with a plurality of rotatable retaining plates (511), and a damper (58) hinged to the bottom edge of each retaining plate (511) is fixed to the inner wall of the through hole;

The rotating sleeve (56) is arranged in the through hole above the limiting ring (51) and rotates, the spiral rod (55) is meshed with the rotating sleeve (56), the spiral rod (55) moves up and down to rotate the rotating sleeve (56), the spiral rod (55) is located on the outer wall above the rotating sleeve (56) and is wound with the reinforced steel cable (57), and the other end of the reinforced steel cable (57) penetrates through the arc groove at the bottom end of the retaining plate (511) and is fixed on the retaining plate (511).

9. The rail transportation hoist of claim 8, characterized in that the retaining plates (511) are provided in several numbers, and the retaining plates (511) are rotated around the stop collar (51) to form an expanded or contracted state by pulling of the reinforcing wire rope (57), and the retaining plates (511) form a cylinder against the hook sleeve (451) in the contracted state.

10. The rail transportation lifting device of a mine electric locomotive according to claim 8, wherein a reset plate connected to the top of the screw rod (55) is connected to the limit ring (51) through a spring.