Anode elevator jack assembly with mechanical automatic limiting function

Abstract

The invention provides a mechanical automatic limiting anode elevator jack assembly, and relates to the technical field of anode elevators, the mechanical automatic limiting anode elevator jack assembly comprises two groups of driving cylinders and two groups of mounting cylinders, and the two groups of mounting cylinders are respectively connected to one ends of the two groups of driving cylinders; the screw rod rotates to drive the driving block to move, the driving block is inserted into the linkage groove through the elastic block to drive the linkage block and the push rod to move, the push rod serves as a hoisting connecting part to control the bus to ascend and descend in a linkage mode, and in the process, the stroke sensor senses the position of the linkage block and controls stopping at the limiting position; and when the linkage block continues to move to the inner side of the extrusion block, the bevel edge of the extrusion block extrudes the part, higher than the linkage block, of the triangular head, so that the elastic block elastically faces backwards and is separated from the linkage groove, the linkage block enters the inner side of the extrusion block and loses power, the situation that normal lifting and mechanical control limiting of the bus are affected due to the fact that the linkage block continues to move at the limiting position is avoided, and reliability is higher.

Description

Technical Field

[0001] The invention relates to the technical field of anode hoists, and in particular to a mechanical automatic limiting anode hoist jack assembly. Background Art

[0002] The anode hoist is a special equipment for lifting the anode of the electrolytic cell. The existing anode hoists, whether they are triangular plate anode hoists or spiral anode hoists, all adopt the spiral drive principle, and their control is completed by the cell control machine collecting control data. The control data for the anode hoist to lift the busbar is completed by the rotation counter or limit switch provided on the anode hoist and the limit switch provided on the busbar. Usually, the lifting data of the anode hoist and the busbar are transmitted to the cell control machine, and the cell control machine performs the actual lifting operation. However, the electrolytic cell is an environment of high temperature, high dust, and corrosive gas. The normally open point of the rotation counter or limit switch is prone to adhesion, resulting in failure of the anode hoist control. Since the existing anode hoist cannot achieve mechanical automatic limit after reaching the limit position, The mechanical accident of the anode hoist crane assembly is inevitable, which leads to serious damage to the motor and the reduction device, and seriously affects the normal lifting of the anode and the judgment of the cell control machine on the limit distance of the electrolytic cell, resulting in increased production maintenance and repair costs. At the same time, operating errors by operators also pose great safety hazards and even bring serious consequences to production. For example, once the control failure or operating error of the triangular plate anode hoist occurs, the rear end cover of the worm gear reducer will be damaged, the motor coupling or the insulating sleeve will be broken, the worm wheel and the worm will be seriously worn, and some will cause the worm wheel and the worm to get stuck, the drive motor to overheat or even the motor to burn out, causing the lifting components to continue to run or even leave the limit position, causing busbar lifting errors, seriously affecting the normal production of the electrolytic cell, and on-site maintenance is very difficult; Therefore, during the operation of the anode hoist, the key point is to accurately control the position of the lifting component (push rod). When the revolution counter or limit switch fails, the movement of the push rod can be effectively and timely stopped at the limit position, thereby avoiding abnormal busbar lifting and lowering. The anode hoist assembly is effectively protected in terms of safety to ensure the normal production of the electrolytic cell. Compared with the failure rate of sensor equipment, mechanical stop is more reliable. How to rely on mechanical limit is a problem to be solved in the prior art. Therefore, the present invention proposes an anode hoist assembly with mechanical automatic limit to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes an anode hoist crane assembly with mechanical automatic limit, which senses the position of the linkage block through a stroke sensor and controls it to stop at the limit position. When the stroke sensor fails, the linkage block continues to move. When it moves to the inside of the extrusion block, the hypotenuse extrusion triangular head of the extrusion block is higher than the part of the linkage block, so that the elastic block elastically moves backward and disengages from the linkage groove. The linkage block enters the inside of the extrusion block and loses power, thereby avoiding continued movement after the limit position to affect the normal lifting and lowering of the busbar. The mechanical control limit is more reliable.

[0004] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a mechanical automatic limit anode lifting machine lifting device assembly, comprising a driving cylinder and a mounting cylinder, the driving cylinder and the mounting cylinder are each provided with two groups, and the two groups of mounting cylinders are respectively connected to one end of the two groups of driving cylinders, a push cylinder is provided on the inner side of the mounting cylinder, a driving block is slidably provided inside the mounting cylinder, and a screw rod is rotatably provided inside the mounting cylinder, the screw rod thread passes through the driving block, an elastic block is elastically provided on one side of the driving block, and a triangular head is provided on one side of the elastic block, a guide rod is provided inside the push cylinder, and a push rod is movably sleeved on the guide rod, one end of the push rod extends out of the push cylinder, and a linkage block is provided on the inner end of the push rod, a linkage groove adapted to the triangular head is provided on one side of the linkage block, and the thickness of the triangular head is greater than the thickness of the linkage block; Travel sensors are provided at both ends of the installation cylinder, and extrusion blocks are provided at both ends of the junction of the installation cylinder and the push cylinder. The extrusion block is in an inverted L shape, and one end of the extrusion block is provided with a bevel that matches the triangular head.

[0005] A further improvement is that a guide groove is provided on one side of the installation cylinder, guide blocks are provided on both ends of one side of the driving block, and the guide blocks are movably matched with the guide groove.

[0006] A further improvement is that an inner groove is provided inside the driving block, one end of the elastic block is movably inserted into the inner groove, and a limit plate is provided at one end of the elastic block, the diameter of the limit plate is larger than the diameter of the elastic block passing through the driving block, and a spring is connected between one side of the limit plate and one side of the inner groove.

[0007] A further improvement is that a guide opening is provided on one side of the push cylinder, an extension rod is provided on one side of the linkage block, the extension rod extends out of the guide opening, a scale is provided on the push cylinder above the guide opening, and the extension rod is adapted to the scale.

[0008] A further improvement is that a rubber layer is provided on the outer side of the guide rod, and the push rod is installed with the guide rod in a damping manner through the rubber layer.

[0009] A further improvement is that a connecting nut is provided at the edge of one side of the installation tube, and the connecting nut is provided in multiple groups, and a reinforcing rib is provided on the outer side of the installation tube, and the reinforcing rib is provided in multiple groups.

[0010] A further improvement is that a gasket is provided at one end of the push rod, and the gasket and the push rod are integrally formed, and a mounting hole is provided on the gasket.

[0011] Further improvements are: a first connecting plate is connected between the two groups of driving cylinders, a second connecting plate is connected to one end between the two groups of push cylinders, a motor is provided at the middle position of the top of the first connecting plate, control cylinders are provided above the two groups of driving cylinders, and a worm is provided inside the control cylinder for rotation, a worm wheel is provided inside the driving cylinder for rotation, the worm wheel is adapted to the worm, one end of the screw rod is connected to the worm wheel, hydraulic couplings are connected to the output ends on both sides of the motor, and the two groups of worms are respectively connected to the hydraulic couplings on both sides through connecting shafts.

[0012] A further improvement is that the travel sensor is used to sense the position of the linkage block, and the signal output end of the travel sensor is connected to a single chip microcomputer, and the control end of the single chip microcomputer is electrically connected to the motor.

[0013] A further improvement is that both ends of the top of the push cylinder are provided with opening doors, and the opening doors at both ends correspond to the extrusion blocks at the positions of the two ends respectively.

[0014] The beneficial effects of the present invention are: 1. The present invention drives the driving block to move by rotating the screw rod, and the driving block is inserted into the linkage groove through the elastic block, thereby driving the linkage block and the push rod to move. The push rod serves as a lifting connection component to control the lifting of the busbar. In this process, the position of the linkage block is sensed by the stroke sensor, and the control stops at the limit position. When the stroke sensor fails, the linkage block continues to move. When it moves to the inside of the extrusion block, the hypotenuse extrusion triangle head of the extrusion block is higher than the part of the linkage block, so that the elastic block elastically moves backward and disengages from the linkage groove. The linkage block enters the inside of the extrusion block and loses power, thereby avoiding continued movement after the limit position to affect the normal lifting of the busbar. The mechanical control limit is more reliable.

[0015] 2. The present invention drives the worm to rotate through a motor, drives the worm wheel to rotate, and causes the screw rod to rotate and drive the driving block to move. Since the output end of the motor and the worm are connected through a hydraulic coupling, when an abnormality occurs and the machine cannot be stopped, the hard torque on the worm is reduced, and the motor is prevented from overheating and equipment damage is avoided at the same time.

[0016] 3. The push rod of the present invention is installed with a damping activity through a rubber layer and a guide rod. When an emergency stop occurs, the linkage block is inserted into the inner side of the extrusion block to apply a partial fixing force. The rubber layer applies a damping friction force to the push rod to prevent the push rod from sliding and displacing easily. Therefore, during maintenance, it is only necessary to open the opening door at the position of the extrusion block to operate the linkage block and reset the connection with the elastic block, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the interior of the installation cylinder and the push cylinder of the present invention; Figure 3 It is a schematic diagram of the adaptation of the elastic block and the linkage block of the present invention; Figure 4 It is a schematic diagram of the extrusion block of the present invention; Figure 5 It is a schematic diagram of the installation of the elastic block of the present invention; Figure 6 It is a schematic diagram of the interior of the driving cylinder of the present invention.

[0018] Among them: 1. driving cylinder; 2. mounting cylinder; 3. pushing cylinder; 4. driving block; 5. screw rod; 6. elastic block; 7. guide rod; 8. pushing rod; 9. linkage block; 10. linkage groove; 11. travel sensor; 12. extrusion block; 13. guide groove; 14. guide block; 15. inner groove; 16. limit plate; 17. spring; 18. guide port; 19. extension rod; 20. scale; 21. connecting nut; 22. reinforcing rib; 23. gasket; 24. first connecting plate; 25. second connecting plate; 26. motor; 27. control cylinder; 28. worm gear; 29. ​​worm; 30. connecting shaft; 31. hydraulic coupling; 32. open door. DETAILED DESCRIPTION

[0019] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0020] Embodiment 1 according to Figure 1 , 2As shown in Figures 3, 4, 5 and 6, this embodiment proposes a mechanical automatic limit anode lifting machine lifting device assembly, including a driving cylinder 1 and a mounting cylinder 2, each of which is provided with two groups, and the two groups of mounting cylinders 2 are respectively connected to one end of the two groups of driving cylinders 1, a push cylinder 3 is provided on the inner side of the mounting cylinder 2, a driving block 4 is slidably provided inside the mounting cylinder 2, and a screw rod 5 is rotatably provided inside the mounting cylinder 2, the screw rod 5 threadedly penetrates the driving block 4, an elastic block 6 is elastically provided on one side of the driving block 4, and a triangular head is provided on one side of the elastic block 6, a guide rod 7 is provided inside the push cylinder 3, and a push rod 8 is movably sleeved on the guide rod 7, one end of the push rod 8 extends out of the push cylinder 3, and a linkage block 9 is provided on the inner end of the push rod 8, a linkage groove 10 adapted to the triangular head is provided on one side of the linkage block 9, and the thickness of the triangular head is greater than the thickness of the linkage block 9; Both ends of the installation tube 2 are provided with travel sensors 11, and both ends of the intersection of the installation tube 2 and the push tube 3 are provided with extrusion blocks 12, which are inverted L-shaped, and one end of the extrusion block 12 is provided with a hypotenuse that matches the triangular head. When in use, the screw rod 5 is rotated to drive the driving block 4 to move, and the driving block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. The push rod 8 is used as a lifting connection component to control the lifting of the busbar. In this process, the position of the linkage block 9 is sensed by the travel sensor 11, and the control stops at the limit position. When the travel sensor 11 fails, the linkage block 9 continues to move. When it moves to the inside of the extrusion block 12, since the thickness of the triangular head is greater than the thickness of the linkage block 9, the hypotenuse of the extrusion block 12 squeezes the triangular head higher than the part of the linkage block 9, so that the elastic block 6 elastically moves backward and disengages from the linkage groove 10, and the linkage block 9 enters the inside of the extrusion block 12 and loses power, so as to avoid continuing to move after the limit position to affect the normal lifting of the busbar. The mechanical control limit is more reliable.

[0021] A guide groove 13 is provided on one side of the installation tube 2, and guide blocks 14 are provided at both ends of one side of the driving block 4, and the guide blocks 14 are movably adapted to the guide groove 13. When in use, the driving block 4 is driven to move by rotating the screw rod 5, and the guide blocks 14 are movably adapted to the guide groove 13, so that the driving block 4 slides stably.

[0022] An inner groove 15 is provided inside the driving block 4, one end of the elastic block 6 is movably inserted into the inner groove 15, and a limiting plate 16 is provided at one end of the elastic block 6. The diameter of the limiting plate 16 is larger than the diameter of the elastic block 6 that passes through the driving block 4, and a spring 17 is connected between one side of the limiting plate 16 and one side of the inner groove 15. When in use, the screw rod 5 is rotated to drive the driving block 4 to move, and the driving block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. The push rod 8 acts as a lifting connection component to control the lifting of the busbar. In this process, the position of the linkage block 9 is sensed by the stroke sensor 11, and the control stops at the extreme position. When the stroke sensor 11 fails, the linkage block 9 continues to move. When it moves to the inside of the extrusion block 12, since the thickness of the triangular head is greater than the thickness of the linkage block 9, the hypotenuse of the extrusion block 12 squeezes the triangular head higher than the part of the linkage block 9, so that the elastic block 6 elastically moves backward and retracts into the inside of the inner groove 15, disengaging from the linkage groove 10, and the linkage block 9 enters the inside of the extrusion block 12, loses power, and subsequently disengages from the limit of the extrusion block 12. Under the action of the spring 17, the elastic block 6 is reset.

[0023] A guide opening 18 is provided on one side of the push cylinder 3, and an extension rod 19 is provided on one side of the linkage block 9. The extension rod 19 extends out of the guide opening 18. A scale 20 is provided on the push cylinder 3 above the guide opening 18, and the extension rod 19 matches the scale 20. When in use, the drive block 4 is driven to move by rotating the screw rod 5, and the drive block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. In this process, the extension rod 19 moves along the guide opening 18, and the position distance of the linkage block 9 is conveniently observed through the scale 20.

[0024] A connecting nut 21 is provided at the edge of one side of the installation tube 2, and there are multiple groups of connecting nuts 21, which is convenient for connecting the triangular plate linkage component of the hoist. A reinforcing rib 22 is provided on the outer side of the installation tube 2, and there are multiple groups of reinforcing ribs 22. The strength of the installation tube 2 is improved.

[0025] A gasket 23 is provided at one end of the push rod 8, and the gasket 23 is integrally formed with the push rod 8, and a mounting hole is provided on the gasket 23. The gasket 23 cooperates with the mounting hole to facilitate connection with other linkage shafts.

[0026] A first connecting plate 24 is connected between the two groups of driving cylinders 1, and a second connecting plate 25 is connected to one end between the two groups of pushing cylinders 3. A motor 26 is provided at the middle position of the top of the first connecting plate 24. A control cylinder 27 is provided above the two groups of driving cylinders 1, and a worm 29 is provided for the internal rotation of the control cylinder 27. A worm wheel 28 is provided for the internal rotation of the driving cylinder 1, and the worm wheel 28 is adapted to the worm 29. One end of the screw rod 5 is connected to the worm wheel 28. The output ends on both sides of the motor 26 are connected to hydraulic couplings 31, and the two groups of worms 29 are respectively connected to the hydraulic couplings 31 on both sides through connecting shafts 30. When in use, the motor 26 drives the worm 29 to rotate, driving the worm wheel 28 to rotate, so that the screw rod 5 rotates to drive the driving block 4 to move. Since the output end of the motor 26 and the worm 29 are connected by the hydraulic coupling 31, when an abnormality occurs and it cannot be stopped, the hard torque on the worm 29 is reduced, and the motor 26 is also prevented from overheating and equipment damage. The hydraulic coupling, also known as the hydraulic coupler, is a hydraulic transmission device that uses the kinetic energy and potential energy of the liquid to transmit power. It is another coupling method with a different transmission principle from the mechanical coupling. The hydraulic coupling has the functions of a mechanical coupling and the functions of a hydraulic transmission. The hydraulic coupling transmits power by means of the high-speed circulation of the working fluid in the working chamber formed by the impeller (pump wheel, turbine) of the input and output couplings. The hydraulic coupling has a very high transmission efficiency (0.95~0.98) and runs smoothly. It can effectively control the overload of the prime mover. It can absorb vibration and eliminate the impact of impact loads. It is easy to adjust and automate, and can achieve stepless speed regulation. It greatly reduces the starting torque of the motor, which can greatly reduce the capacity of the motor.

[0027] The travel sensor 11 is used to sense the position of the linkage block 9, and the signal output end of the travel sensor 11 is connected to the single chip microcomputer, and the control end of the single chip microcomputer is electrically connected to the motor 26. When in use, the position of the linkage block 9 is sensed by the travel sensor 11, and the motor 26 is controlled to stop when it is at the limit position.

[0028] Embodiment 2 according to Figure 1 , 2As shown in Figures 3, 4, 5 and 6, this embodiment proposes a mechanical automatic limit anode lifting machine lifting device assembly, including a driving cylinder 1 and a mounting cylinder 2, each of which is provided with two groups, and the two groups of mounting cylinders 2 are respectively connected to one end of the two groups of driving cylinders 1, a push cylinder 3 is provided on the inner side of the mounting cylinder 2, a driving block 4 is slidably provided inside the mounting cylinder 2, and a screw rod 5 is rotatably provided inside the mounting cylinder 2, the screw rod 5 threadedly penetrates the driving block 4, an elastic block 6 is elastically provided on one side of the driving block 4, and a triangular head is provided on one side of the elastic block 6, a guide rod 7 is provided inside the push cylinder 3, and a push rod 8 is movably sleeved on the guide rod 7, one end of the push rod 8 extends out of the push cylinder 3, and a linkage block 9 is provided on the inner end of the push rod 8, a linkage groove 10 adapted to the triangular head is provided on one side of the linkage block 9, and the thickness of the triangular head is greater than the thickness of the linkage block 9; Both ends of the installation tube 2 are provided with travel sensors 11, and both ends of the intersection of the installation tube 2 and the push tube 3 are provided with extrusion blocks 12, which are inverted L-shaped, and one end of the extrusion block 12 is provided with a hypotenuse that matches the triangular head. When in use, the screw rod 5 is rotated to drive the driving block 4 to move, and the driving block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. The push rod 8 is used as a lifting connection component to control the lifting of the busbar. In this process, the position of the linkage block 9 is sensed by the travel sensor 11, and the control stops at the limit position. When the travel sensor 11 fails, the linkage block 9 continues to move. When it moves to the inside of the extrusion block 12, since the thickness of the triangular head is greater than the thickness of the linkage block 9, the hypotenuse of the extrusion block 12 squeezes the triangular head higher than the part of the linkage block 9, so that the elastic block 6 elastically moves backward and disengages from the linkage groove 10, and the linkage block 9 enters the inside of the extrusion block 12 and loses power, so as to avoid continuing to move after the limit position to affect the normal lifting of the busbar. The mechanical control limit is more reliable.

[0029] A guide opening 18 is provided on one side of the push cylinder 3, and an extension rod 19 is provided on one side of the linkage block 9. The extension rod 19 extends out of the guide opening 18. A scale 20 is provided on the push cylinder 3 above the guide opening 18, and the extension rod 19 matches the scale 20. When in use, the drive block 4 is driven to move by rotating the screw rod 5, and the drive block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. In this process, the extension rod 19 moves along the guide opening 18, and the position distance of the linkage block 9 can be easily observed through the scale 20. A connecting nut 21 is provided at the edge of one side of the installation tube 2, and there are multiple groups of connecting nuts 21, which is convenient for connecting the triangular plate linkage component of the hoist. A reinforcing rib 22 is provided on the outer side of the installation tube 2, and there are multiple groups of reinforcing ribs 22. The strength of the installation tube 2 is improved.

[0030] A gasket 23 is provided at one end of the push rod 8, and the gasket 23 is integrally formed with the push rod 8, and a mounting hole is provided on the gasket 23. The gasket 23 cooperates with the mounting hole to facilitate connection with other linkage shafts.

[0031] The outer side of the guide rod 7 is provided with a rubber layer, and the push rod 8 is installed with the guide rod 7 through the rubber layer. Both ends of the top of the push cylinder 3 are provided with opening doors 32, and the opening doors 32 at both ends correspond to the extrusion blocks 12 at the two end positions respectively. The push rod 8 is installed with the guide rod 7 through the rubber layer. In an emergency stop, the linkage block 9 is inserted into the inner side of the extrusion block 12 to apply a partial fixing force. The rubber layer applies a damping friction force to the push rod 8 to prevent the push rod 8 from sliding and displacing easily. Therefore, when repairing, it is only necessary to open the opening door 32 at the position of the extrusion block 12 to operate the linkage block 9 and reset the connection with the elastic block 6, which is more convenient.

[0032] The anode hoist crane assembly with mechanical automatic limit drives the driving block 4 to move by rotating the screw rod 5. The driving block 4 is inserted into the linkage groove 10 through the elastic block 6, driving the linkage block 9 and the push rod 8 to move. The push rod 8 acts as a lifting connection component to control the lifting of the busbar. In this process, the position of the linkage block 9 is sensed by the stroke sensor 11, and the control stops at the limit position. When the stroke sensor 11 fails, the linkage block 9 continues to move. When it moves to the inside of the extrusion block 12, the hypotenuse extrusion triangle head of the extrusion block 12 is higher than the part of the linkage block 9, so that the elastic block 6 elastically moves backward and disengages from the linkage groove 10. The linkage block 9 enters the inside of the extrusion block 12 and loses power, thereby avoiding continued movement after the limit position to affect the normal lifting of the busbar. The mechanical control limit is more reliable. In addition, the present invention drives the worm 29 to rotate through the motor 26, drives the worm wheel 28 to rotate, and causes the screw rod 5 to rotate and drive the driving block 4 to move. Since the output end of the motor 26 and the worm 29 are connected through the hydraulic coupling 31, when an abnormality occurs and the machine cannot stop, the hard torque on the worm 29 is reduced, and the motor 26 is also prevented from overheating and equipment damage. At the same time, the push rod 8 is installed with damping activities through the rubber layer and the guide rod 7. When the emergency stop occurs, the linkage block 9 is inserted into the inner side of the extrusion block 12 to apply a partial fixing force. The rubber layer applies a damping friction force to the push rod 8 to prevent the push rod 8 from sliding and displacing easily. Therefore, when repairing, it is only necessary to open the opening door 32 at the position of the extrusion block 12 to operate the linkage block 9 and reset the connection with the elastic block 6, which is more convenient.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mechanical automatic limit anode hoist jack assembly, comprising a drive cylinder (1) and a mounting cylinder (2), characterized in that: The driving cylinder (1) and the mounting cylinder (2) are each provided with two groups, and the two groups of mounting cylinders (2) are respectively connected to one end of the two groups of driving cylinders (1); a push cylinder (3) is provided on the inner side of the mounting cylinder (2); a driving block (4) is slidably provided inside the mounting cylinder (2); and a screw rod (5) is rotatably provided inside the mounting cylinder (2); the screw rod (5) threadably penetrates the driving block (4); an elastic block (6) is elastically provided on one side of the driving block (4); and a triangular head is provided on one side of the elastic block (6); a guide rod (7) is provided inside the push cylinder (3); and a push rod (8) is movably sleeved on the guide rod (7); one end of the push rod (8) extends out of the push cylinder (3), and a linkage block (9) is provided on the inner end of the push rod (8); a linkage groove (10) adapted to the triangular head is provided on one side of the linkage block (9); the thickness of the triangular head is greater than the thickness of the linkage block (9); Travel sensors (11) are provided at both ends of the interior of the installation cylinder (2), and extrusion blocks (12) are provided at both ends of the junction of the installation cylinder (2) and the push cylinder (3). The extrusion block (12) is in an inverted L-shape, and one end of the extrusion block (12) is provided with a bevel that matches the triangular head.

2. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: A guide groove (13) is provided on one side of the interior of the installation cylinder (2), and guide blocks (14) are provided on both ends of one side of the driving block (4), and the guide blocks (14) are movably matched with the guide groove (13).

3. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: An inner groove (15) is provided inside the driving block (4), one end of the elastic block (6) is movably inserted into the inner groove (15), and a limiting plate (16) is provided at one end of the elastic block (6), the diameter of the limiting plate (16) is larger than the diameter of the elastic block (6) penetrating the driving block (4), and a spring (17) is connected between one side of the limiting plate (16) and one side of the inner groove (15).

4. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: A guide opening (18) is provided on one side of the push cylinder (3), an extension rod (19) is provided on one side of the linkage block (9), the extension rod (19) extends out of the guide opening (18), a scale (20) is provided on the push cylinder (3) above the guide opening (18), and the extension rod (19) is adapted to the scale (20).

5. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: The outer side of the guide rod (7) is provided with a rubber layer, and the push rod (8) is mounted with the guide rod (7) via the rubber layer in a damping manner.

6. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: A connecting nut (21) is provided at the edge of one side of the installation tube (2), and a plurality of connecting nuts (21) are provided. A reinforcing rib (22) is provided on the outer side of the installation tube (2), and a plurality of reinforcing ribs (22) are provided.

7. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: A gasket (23) is provided at one end of the push rod (8), and the gasket (23) and the push rod (8) are integrally formed, and a mounting hole is provided on the gasket (23).

8. The mechanical automatic limit anode hoist jack assembly according to claim 1 is characterized in that: A first connecting plate (24) is connected between the two groups of driving cylinders (1), a second connecting plate (25) is connected at one end between the two groups of pushing cylinders (3), a motor (26) is provided at the middle position of the top of the first connecting plate (24), a control cylinder (27) is provided above the two groups of driving cylinders (1), and a worm (29) is provided inside the control cylinder (27) for rotation, a worm wheel (28) is provided inside the driving cylinder (1), the worm wheel (28) is matched with the worm (29), one end of the screw rod (5) is connected to the worm wheel (28), both sides of the output end of the motor (26) are connected to the hydraulic coupling (31), and the two groups of worms (29) are respectively connected to the hydraulic coupling (31) on both sides through a connecting shaft (30).

9. The mechanical automatic limit anode hoist jack assembly according to claim 8, characterized in that: The travel sensor (11) is used to sense the position of the linkage block (9), and the signal output end of the travel sensor (11) is connected to a single-chip microcomputer, and the control end of the single-chip microcomputer is electrically connected to the motor (26).

10. A mechanical automatic limit anode hoist jack assembly according to any one of claims 1 to 9, characterized in that: Both ends of the top of the push cylinder (3) are provided with opening doors (32), and the opening doors (32) at both ends correspond to the extrusion blocks (12) at the positions of both ends respectively.

Images