An explosion-proof battery monorail crane anti-slip device

Abstract

After derrick hoists and puts in place, stamp fixedly derrick of derrick pin, make it become the position that derrick of derrick pins and the position of post of derrick pin respectively are positioned at derrick of derrick hoist, to the top of derrick pin, make it be positioned at derrick of derrick pin.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof battery monorail cranes, in particular to an anti-slip device for explosion-proof battery monorail cranes. Background Art

[0002] The explosion-proof special-type battery-powered monorail crane is a type of auxiliary transportation equipment for coal mines, operating on a dedicated track suspended from the tunnel roof. It is suitable for transporting light loads of materials and personnel in shallow-slope tunnels underground in coal mines. Powered by lead-acid batteries, the monorail crane offers advantages such as maneuverability, minimal impact from floor deformation, low operating noise, and environmental friendliness. With the increasing national emphasis on coal mine safety and improvements in coal mine equipment manufacturing, the safety requirements for auxiliary transportation equipment in underground coal mines are becoming increasingly stringent. Due to the unevenness of the tunnels during operation, reliable braking measures must be implemented to improve operational safety. Due to the limitations of battery capacity, explosion-proof, special-purpose battery-powered monorail cranes have low power and a high deadweight. They are suitable for transporting materials and personnel in tunnels requiring less traction. However, when the locomotive is overloaded while traveling on an inclined roadway, insufficient rail friction reduces traction, which can easily cause the locomotive to slip. This can affect the entire locomotive's chain of events and lead to serious safety accidents. Current explosion-proof battery-powered monorail cranes rely on the oil supply pressure from a gear pump to provide a fixed clamping pressure to the clamping cylinder via a solenoid reversing valve and a pressure reducing valve. During operation, overflow from the hydraulic components causes a drop in clamping pressure, making it impossible to guarantee pressure stability in the clamping cylinder. When the locomotive is unloaded, excessive clamping force can severely damage the friction wheels, reducing their service life. However, when the explosion-proof battery-powered monorail crane is overloaded while traveling on an inclined roadway, insufficient rail friction reduces traction. The change in clamping force cannot effectively control the locomotive's forward motion, potentially causing the locomotive to become immobilized or even slip. Summary of the Invention

[0003] The object of the present invention is to provide an explosion-proof battery monorail crane anti-skid device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: an explosion-proof battery monorail crane anti-skid device, comprising a drive mechanism, a running track disposed above the drive mechanism, a cockpit, a battery unit, and a main unit disposed sequentially from left to right at the bottom of the running track, a gear pump fixed to one side of the interior of the main unit, a hydraulic oil tank disposed at the bottom of the gear pump, a hydraulic control box disposed on one side of the hydraulic oil tank, an accumulator disposed on one side of the hydraulic control box, and the accumulator fixed to one side of the interior of the main unit;

[0005] A first solenoid reversing valve, a second solenoid reversing valve and a superimposed pressure reducing valve are provided inside the hydraulic control box. The first solenoid reversing valve is connected to one side of the gear pump, the superimposed pressure reducing valve is connected to one side of the first solenoid reversing valve, the second solenoid reversing valve is connected to one side of the superimposed pressure reducing valve, one side of the second solenoid reversing valve is connected to a hydraulically controlled one-way valve, one side of the hydraulically controlled one-way valve is connected to a first connecting pipe, the hydraulically controlled one-way valve is connected to the input end of the accumulator through the first connecting pipe, a pressure sensor is provided in the pipeline between the hydraulically controlled one-way valve and the accumulator, and one side of the output interface of the accumulator is fixedly connected to the second connecting pipe.

[0006] Preferably, the cockpit, battery unit and main unit are connected by a noose, the tops of the cockpit, battery unit and main unit are slidably connected to the lower part of the running track, and an electric control box is provided inside the main unit.

[0007] Preferably, the two driving mechanisms are arranged between the cockpit and the battery part, and the driving mechanism includes a driving assembly and a clamping assembly, and the driving assembly is arranged on one side of the clamping assembly.

[0008] Preferably, the driving assembly includes a driving motor, a motor fixing seat and a driving wheel, wherein the driving motor is fixed to the bottom of the motor fixing seat by bolts, and the driving wheel is fixed to the rotating shaft end of the driving motor.

[0009] Preferably, the clamping assembly includes a fixed clamp seat, a clamping arm and a clamping cylinder. A swing groove is provided on both sides of the fixed clamp seat. A first pin is inserted into a first pin hole provided on one side of the swing groove, and the clamping arm is rotatably connected to the inner side of the swing groove through the first pin.

[0010] Preferably, a second pin hole is provided on one side of the lower part of the clamping arm, a second pin column is inserted into the second pin hole, fixed pin seats are fixed on both sides of the clamping cylinder, the clamping cylinder is connected between the two clamping arms through the fixed pin seats, a hydraulic interface is provided on one side of the clamping cylinder, and the second connecting pipe is connected to one side of the hydraulic interface.

[0011] Preferably, a track slot is provided on the top of the fixed clamp seat, and two movable rollers are symmetrically arranged on both sides of the track slot. The movable rollers are rotatably connected to one side of the track slot, and the lower part of the movable rollers is rollingly connected to the upper part of the running track.

[0012] Preferably, a motor support is symmetrically provided on one side of the fixing clamp seat, one side of the motor support is welded to the surface of the fixing clamp seat, and the motor fixing seat is fixedly connected to the bottom of the motor support by bolts.

[0013] Preferably, a drive shaft hole is opened on the top of the above-mentioned motor support, the rotating shaft of the drive motor is rotatably connected to the inner side of the drive shaft hole, and an anti-slip rim is fixed to the outside of the drive wheel, and the drive wheel is squeezed into contact with the surface of the running track through the anti-slip rim.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The device is installed in the original clamping cylinder hydraulic system, adding an accumulator to store energy to ensure the stability of the clamping force, preventing the driving wheel from running at high pressure for a long time, which will cause serious wear and shorten the service life of the driving wheel. When the locomotive is heavily loaded and climbing, it switches to climbing mode to increase the clamping cylinder pressure and thus increase traction, preventing the locomotive from slipping and ensuring safe operation of the locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 Schematic diagram of the internal structure of the host unit of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection structure of the hydraulic control box of the present invention;

[0019] Figure 4 Schematic diagram of the driving mechanism structure of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention;

[0022] Figure 7 This is a schematic diagram of the front three-dimensional structure of the driving mechanism of the present invention;

[0023] Figure 8 It is a schematic diagram of the rear three-dimensional structure of the driving mechanism of the present invention.

[0024] In the figure: 1. driving mechanism; 2. running track; 3. cockpit; 4. gear pump; 5. hydraulic control box; 6. accumulator; 7. first electromagnetic reversing valve; 8. second electromagnetic reversing valve; 9. first connecting pipe; 10. second connecting pipe; 11. battery unit; 12. main unit; 13. driving assembly; 14. clamping assembly; 15. driving motor; 16. motor fixing seat; 17. driving wheel; 18. anti-skid wheel rim; 19. fixing clamp seat; 20. clamping arm; 21. clamping cylinder; 22. motor support; 23. driving shaft hole; 24. track slot; 25. swing slot; 26. first pin; 27. fixing pin seat; 28. second pin; 29. ​​hydraulic interface; 30. superimposed pressure reducing valve; 31. pressure sensor; 32. moving roller. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] See also Figure 1-7 The present invention provides a technical solution: an explosion-proof battery monorail anti-skid device, comprising a driving mechanism 1, a running track 2 is arranged above the driving mechanism 1, two driving mechanisms 1 are arranged between the cockpit 3 and the battery part 11, and can provide driving force for the operation of the device, the bottom of the running track 2 is provided with a cockpit 3, a battery part 11 and a main unit 12 from left to right, the cockpit 3, the battery part 11 and the main unit 12 are connected by a noose, the top of the cockpit 3, the battery part 11 and the main unit 12 are all slidably connected to the lower part of the running track 2, the cockpit 3 is provided with a control button. When the locomotive is overloaded while traveling on an inclined lane and the track friction coefficient is insufficient, resulting in reduced traction, the driving mode can be switched by pressing the "boost" button in the cab 3. A gear pump 4 is fixed inside the main unit 12 to provide hydraulic driving force for the clamping assembly 14. A hydraulic oil tank is provided at the bottom of the gear pump 4. The hydraulic oil tank can provide hydraulic oil and return oil storage space for the hydraulic system. A hydraulic control box 5 is provided on one side of the hydraulic oil tank. The hydraulic control box 5 is provided with hydraulic control devices to realize control of the hydraulic system.

[0028] The interior of the hydraulic control box 5 is provided with a first electromagnetic reversing valve 7, a second electromagnetic reversing valve 8 and a superimposed pressure reducing valve 30. The first electromagnetic reversing valve 7 is connected to one side of the gear pump 4, and the superimposed pressure reducing valve 30 is connected to one side of the first electromagnetic reversing valve 7. The model of the superimposed pressure reducing valve 30 is ZDR6DA2-30 / 210Y. The second electromagnetic reversing valve 8 is connected to one side of the superimposed pressure reducing valve 30. One side of the second electromagnetic reversing valve 8 is connected to a hydraulically controlled one-way valve. One side of the hydraulically controlled one-way valve is connected to a first connecting pipe 9. The hydraulically controlled one-way valve is connected to the input end of the accumulator 6 through the first connecting pipe 9. There is a pressure between the hydraulically controlled one-way valve and the accumulator 6. A pressure sensor 31 is provided in the pipeline. The model of the pressure sensor 31 is GPD60 (B). The pressure sensor 31 can ensure that after the oil supply reaches the specified pressure, the second electromagnetic reversing valve 8 is reset to the initial position through the control of the controller in the electronic control box, and the oil supply is stopped to ensure the safe driving of the locomotive. The accumulator 6 is fixed to the inner side of the main body 12. The output interface side of the accumulator 6 is fixedly connected to the second connecting pipe 10. A hydraulic interface 29 is provided on one side of the clamping cylinder 21. The second connecting pipe 10 is connected to one side of the hydraulic interface 29. The accumulator 6 uses its own energy storage characteristics to ensure the stability of the clamping force of the clamping cylinder 21.

[0029] The driving mechanism 1 includes a driving component 13 and a clamping component 14. The clamping component 14 includes a fixed clamping seat 19, a clamping arm 20 and a clamping cylinder 21. A track slot 24 is provided on the top of the fixed clamping seat 19 for passing the running track 2. Two moving rollers 32 are symmetrically provided on both sides of the track slot 24. The moving roller 32 is rotatably connected to one side of the track slot 24. The lower part of the moving roller 32 is rollingly connected to the upper part of the running track 2, which can ensure that the fixed clamping seat 19 slides stably on the lower part of the running track 2. A swinging groove 25 is provided on both sides of the fixed clamping seat 19. One side of the swinging groove 25 A first pin column 26 is inserted into the first pin hole opened on the side, and the clamping arm 20 is rotatably connected to the inner side of the swinging groove 25 through the first pin column 26. A second pin hole is opened on the lower side of the clamping arm 20, and a second pin column 28 is inserted into the second pin hole. Fixed pin seats 27 are fixed on both sides of the clamping cylinder 21, and the clamping cylinder 21 is connected between the two clamping arms 20 through the fixed pin seats 27. The clamping cylinder 21 is a hydraulic pushing cylinder, which cooperates with the hydraulic control box 5 and the accumulator 6 to push the two clamping arms 20 so that the driving wheel 17 is squeezed on one side of the running track 2 with stable pressure to provide sufficient driving force.

[0030] The drive assembly 13 is arranged on one side of the clamping assembly 14. The drive assembly 13 includes a drive motor 15, a motor fixing seat 16 and a drive wheel 17. A motor support 22 is symmetrically provided on one side of the fixing clamp seat 19. One side of the motor support 22 is welded to the surface of the fixing clamp seat 19. The motor fixing seat 16 is fixedly connected to the bottom of the motor support 22 by bolts. The drive motor 15 is fixed to the bottom of the motor fixing seat 16 by bolts. A drive shaft hole 23 is opened on the top of the motor support 22. The rotating shaft of the drive motor 15 is rotatably connected to the inner side of the drive shaft hole 23. The drive wheel 17 is fixed to the rotating shaft end of the drive motor 15. The outside of the drive wheel 17 is fixed with an anti-slip rim 18. The anti-slip rim 18 is a synthetic rubber with a high friction coefficient. The drive wheel 17 is fixed with an anti-slip rim 18. The extrusion contact is on the surface of the running track 2, which can ensure that there is sufficient friction between the driving wheel 17 and the running track 2. When the locomotive is loaded too much while traveling on the inclined lane and the track friction coefficient is insufficient, resulting in a decrease in traction, the PB end of the first electromagnetic reversing valve 7 is connected through the control of the controller in the electronic control box, and the PA end of the second electromagnetic reversing valve 8 is connected at the same time, without passing through the pressure reducing valve in the superimposed pressure reducing valve 30 to reduce pressure. When the value of the pressure sensor 31 increases to the set value, the second electromagnetic reversing valve 8 is reset to the initial position through the control of the controller in the electronic control box, and the oil supply is stopped. After the climbing is completed, press the "boost" button again, the PB end of the second electromagnetic reversing valve 8 is connected, and the hydraulic control one-way valve is controlled to release pressure, the locomotive returns to normal running, and the clamping force returns to normal.

[0031] Working principle or structural principle, when the battery monorail crane is working, when the explosion-proof battery monorail crane is running normally, the gear pump 4 is connected to the PA end of the upper part of the first electromagnetic reversing valve 7 through the oil supply pipe, and then flows through the superimposed pressure reducing valve 30. The superimposed pressure reducing valve 30 can ensure the oil supply pressure. When the oil passes through the second electromagnetic reversing valve 8, the PA end of the second electromagnetic reversing valve 8 is connected, passes through the hydraulic control one-way valve and is externally connected to the accumulator 6 and the pressure sensor 31 through the first connecting pipe 9. The accumulator 6 uses its own energy storage characteristics to ensure the stability of the clamping force of the clamping cylinder 21. The pressure sensor 31 can ensure that after the oil supply reaches the specified pressure, the second electromagnetic reversing valve 8 is reset to the initial position through the control of the controller in the electronic control box, and the oil supply is stopped to ensure the safe travel of the locomotive;

[0032] When the locomotive is traveling on an inclined lane with an excessive load and insufficient rail friction coefficient causing reduced traction, by pressing the "boost" button in the cab 3, the PB end of the first solenoid reversing valve 7 is connected under the control of the controller in the electric control box, and the PA end of the second solenoid reversing valve 8 is connected at the same time, without reducing pressure through the pressure reducing valve in the superimposed pressure reducing valve 30. When the value of the pressure sensor 31 increases to the set value, the second solenoid reversing valve 8 is reset to the initial position under the control of the controller in the electric control box, and the oil supply is stopped. After the climbing is completed, the "boost" button is pressed again, the PB end of the second solenoid reversing valve 8 is connected, and the hydraulically controlled one-way valve is controlled to release pressure, so that the locomotive resumes normal travel and the clamping force returns to normal, preventing the drive wheel 17 from running at high pressure for a long time, which would cause serious wear and shorten the life of the drive wheel 17. Among them, the model of the pressure sensor 31 is GPD60(B), and the model of the superimposed pressure reducing valve 30 is ZDR6DA2-30 / 210Y.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof battery monorail crane anti-skid device, comprising a drive mechanism (1), characterized in that: A running track (2) is provided above the driving mechanism (1), and a cockpit (3), a battery unit (11), and a main engine unit (12) are provided at the bottom of the running track (2) from left to right. A gear pump (4) is fixed to one side of the interior of the main engine unit (12), a hydraulic oil tank is provided at the bottom of the gear pump (4), a hydraulic control box (5) is provided on one side of the hydraulic oil tank, and an accumulator (6) is provided on one side of the hydraulic control box (5), and the accumulator (6) is fixed to one side of the interior of the main engine unit (12); A first electromagnetic reversing valve (7), a second electromagnetic reversing valve (8) and a superimposed pressure reducing valve (30) are provided inside the hydraulic control box (5). The first electromagnetic reversing valve (7) is connected to one side of the gear pump (4), the superimposed pressure reducing valve (30) is connected to one side of the first electromagnetic reversing valve (7), the second electromagnetic reversing valve (8) is connected to one side of the superimposed pressure reducing valve (30), one side of the second electromagnetic reversing valve (8) is connected to a hydraulically controlled one-way valve, one side of the hydraulically controlled one-way valve is connected to a first connecting pipe (9), the hydraulically controlled one-way valve is connected to the input end of the accumulator (6) through the first connecting pipe (9), a pressure sensor (31) is provided in the pipeline between the hydraulically controlled one-way valve and the accumulator (6), and one side of the output interface of the accumulator (6) is fixedly connected to the second connecting pipe (10).

2. The anti-slip device for explosion-proof battery monorail crane according to claim 1, characterized in that: The cockpit (3), the battery unit (11) and the main unit (12) are all connected by a noose; the tops of the cockpit (3), the battery unit (11) and the main unit (12) are all slidably connected to the lower part of the running track (2); and an electric control box is provided inside the main unit (12).

3. The anti-slip device for explosion-proof battery monorail crane according to claim 1, characterized in that: The two driving mechanisms (1) are arranged between the cockpit (3) and the battery part (11), and the driving mechanism (1) comprises a driving assembly (13) and a clamping assembly (14), wherein the driving assembly (13) is arranged on one side of the clamping assembly (14).

4. The anti-slip device for explosion-proof battery monorail crane according to claim 3, characterized in that: The driving assembly (13) comprises a driving motor (15), a motor fixing seat (16) and a driving wheel (17); the driving motor (15) is fixed to the bottom of the motor fixing seat (16) by bolts, and the driving wheel (17) is fixed to the rotating shaft end of the driving motor (15).

5. The anti-slip device for explosion-proof battery monorail crane according to claim 4, characterized in that: The clamping assembly (14) includes a fixed clamping seat (19), a clamping arm (20) and a clamping cylinder (21). Both sides of the fixed clamping seat (19) are provided with a swinging groove (25). A first pin (26) is inserted into a first pin hole provided on one side of the swinging groove (25) and is clamped therein. The clamping arm (20) is rotatably connected to the inner side of the swinging groove (25) through the first pin (26).

6. The anti-slip device for explosion-proof battery monorail crane according to claim 5, characterized in that: A second pin hole is provided on one side of the lower portion of the clamping arm (20), and a second pin column (28) is inserted and clamped into the second pin hole. Fixed pin seats (27) are fixed on both sides of the clamping cylinder (21). The clamping cylinder (21) is connected between the two clamping arms (20) through the fixed pin seats (27). A hydraulic interface (29) is provided on one side of the clamping cylinder (21), and the second connecting pipe (10) is connected to one side of the hydraulic interface (29).

7. The anti-slip device for explosion-proof battery monorail crane according to claim 6, characterized in that: A track slot (24) is provided on the top of the fixed clamp seat (19), and two movable rollers (32) are symmetrically provided on both sides of the track slot (24). The movable rollers (32) are rotatably connected to one side of the track slot (24), and the lower part of the movable rollers (32) is rollingly connected to the upper part of the running track (2).

8. The anti-slip device for explosion-proof battery monorail crane according to claim 7, characterized in that: A motor support (22) is symmetrically provided on one side of the fixing clamp seat (19), one side of the motor support (22) is welded to the surface of the fixing clamp seat (19), and the motor fixing seat (16) is fixedly connected to the bottom of the motor support (22) by bolts.

9. The anti-slip device for explosion-proof battery monorail crane according to claim 8, characterized in that: A drive shaft hole (23) is provided on the top of the motor support (22), and the rotating shaft of the drive motor (15) is rotatably connected to the inner side of the drive shaft hole (23). An anti-skid wheel ring (18) is fixed to the outside of the drive wheel (17), and the drive wheel (17) is squeezed and contacted with the surface of the running track (2) through the anti-skid wheel ring (18).

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