CN117536655A - Underground hydraulic support hydraulic supply equipment - Google Patents

Abstract

The invention belongs to the technical field of hydraulic supports, and particularly relates to a hydraulic supply device for an underground hydraulic support. The invention can avoid that the hydraulic oil contains bubbles before entering the hydraulic rod, increase the service life of the equipment, simultaneously can sufficiently improve the response speed of the hydraulic rod and the performance of the equipment, can monitor underground geological settlement in real time while eliminating the bubbles in the hydraulic oil, can prompt staff to keep away from the position in time, improve the safety and the reliability of the equipment, can rotate the transmission plate when the hydraulic rod descends, prevent the illuminating lamp from moving upwards when eliminating the bubbles in the hydraulic oil, and improve the practicability and the stability of the equipment when in use.

Description

Underground hydraulic support hydraulic supply equipment

Technical field

The invention belongs to the technical field of hydraulic supports, and in particular relates to hydraulic supply equipment for underground hydraulic supports.

Background technique

Underground Hydraulic Support is a commonly used equipment in underground working places such as coal mines. It is used to support and stabilize the working face or tunnel of layered rocks and coal seams.

When you need to use an underground hydraulic support, you need to use hydraulic supply equipment to supply oil to the hydraulic support. However, during the assembly, maintenance or operation of the hydraulic system, air may be brought into the hydraulic oil. When there is too much When air is used, bubbles may be formed during the oil supply process. The existence of bubbles reduces the effective volume of the hydraulic oil, thereby affecting the performance and response speed of the hydraulic system. The bubbles may also cause the lubrication performance of the hydraulic oil to decrease, increasing the friction between hydraulic components. Friction and wear between components shorten the life of the hydraulic system;

And when the weight of the items carried on the surface of the hydraulic support is too large, it may cause the hydraulic oil to break through the hydraulic valve and flow back. This may exceed the sealing capacity of the hydraulic valve, causing the hydraulic oil to flow back through the hydraulic valve, thus causing As a result, the support distance of the hydraulic support continues to decrease, and the required support position cannot be effectively supported. At the same time, as the hydraulic support gradually declines, it means that the underground geology is subsideating at this time, and there is a risk of collapse. For underground staff causing safety hazards.

To this end, we propose hydraulic supply equipment for underground hydraulic supports to solve the above problems.

Contents of the invention

The purpose of the present invention is to provide hydraulic supply equipment for downhole hydraulic supports to address the above problems.

In order to achieve the above object, the present invention adopts the following technical solution: the hydraulic supply equipment of the underground hydraulic support includes a fixed bottom plate, the upper end side wall of the fixed bottom plate is fixedly connected with a supply shell, and the upper end side wall of the supply shell is symmetrically fixedly connected with Two hydraulic rods, the upper output ends of the two hydraulic rods are fixedly connected to the same support plate, the upper end side wall of the supply shell is fixedly connected to an oil tank, and the lower end inner wall of the supply shell is fixedly connected to an oil supply pump, so A servo motor is also fixedly connected to the inner wall of the lower end of the supply shell. One end of the output end of the servo motor is fixedly connected to a rotating rod. One end of the rotating rod is fixedly connected to the input shaft of the oil supply pump. The water inlet end of the oil supply pump The side wall of the supply shell and the oil tank extends inward. The other end of the oil supply pump is fixedly connected with an oil supply pipe. Both ends of the oil supply pipe penetrate the side wall of the supply shell and are fixed to the oil inlet end of the hydraulic rod. Connected, the side wall of the oil supply pipe is provided with a hydraulic valve, the upper end side wall of the oil supply pipe is provided with an opening, and a fixed shell is sealed inside the corresponding opening, and the lower end inner wall of the fixed shell is rotatably connected with a side wall. Rod.

Preferably, the upper end of the side rod is fixedly connected with a first strong magnet through the side wall of the fixed shell, the inner walls of both ends of the supply shell are rotationally connected with the same round rod, and the rod wall of the round rod is fixedly connected with a The worm, the round rod and the rod wall of the rotating rod are connected with the same transmission belt, the upper end side wall of the first strong magnet is magnetically attracted to the second strong magnet, and the upper end side wall of the second strong magnet A worm gear is fixedly connected, and the worm gear meshes with the worm.

Preferably, the rod wall of the side rod is also fixedly connected with a driving bevel gear, the side wall of the fixed shell is provided with a through hole, and a connecting rod is sealed and rotatably connected inside the through hole, and the connecting rod is located on the fixed housing. A driven bevel gear is fixedly connected to one end in the shell, and the driven bevel gear meshes with the driving bevel gear. A plurality of flow stirring plates are fixedly connected to the rod wall of the connecting rod located outside the fixed shell.

Preferably, the upper end side wall of the oil supply pipe is also provided with a through hole, and a transmission shell is fixedly connected inside the corresponding through hole, and the two end side walls of the transmission shell located in the oil supply pipe are provided with connection holes. A through hole for the rod to rotate. A support rod is rotatably connected to the inner wall of one end of the transmission shell. The support rod and the outer wall of the connecting rod are rotationally connected with the same rotating belt. One end of the support rod is fixedly connected to a third strong magnet. , a fourth strong magnet is magnetically attracted to one end side wall of the third strong magnet.

Preferably, a transmission rod is fixedly connected to one end side wall of the fourth strong magnet, and one end of the transmission rod is rotationally connected to the inner wall of one end of the transmission shell. The inner wall of the transmission shell is provided with a fixed plate, and the fixed plate is The lower end side wall is fixedly connected to the limit ring, and the transmission rod passes through the interior of the limit ring. The rod wall of the transmission rod is fixedly connected to a plurality of rotating plates. The inner wall of the limit ring is annularly distributed with multiple rotating plates. Each mounting groove has a baffle connected to its inner wall through a rotating shaft. One end of the baffle is fixedly connected to a return spring, and the other end of the return spring is connected to a corresponding one. Fixed connection to the side wall of the mounting groove.

Preferably, a threaded screw rod is rotatably connected to the side wall of one end of the transmission shell, a mounting plate is fixedly connected to the inner wall of the lower end of the supply shell, and the other end of the threaded screw rod is rotatably connected to the side wall of the mounting plate. One end of the threaded screw rod penetrates the side wall of the transmission shell and is fixedly connected to one end of the transmission rod. The rod wall of the threaded screw rod is sleeved with a moving slider through thread rotation. One end of the side wall of the moving slider is fixedly connected with a push rod. Rod.

Preferably, a sealing shell is fixedly connected to the inner wall of the upper end of the supply shell, a first piston is connected to the inner sealing sleeve of the sealing shell, and one end of the push rod penetrates the side wall of the sealing shell and is fixed to the side wall of the first piston. connection, the upper end side wall of the supply shell is fixedly connected with a lifting cylinder, the internal sealing sleeve of the lifting cylinder is connected with a second piston, the lifting cylinder and the side wall of the sealing shell are both provided with through holes, and the corresponding through holes The same communicating tube is fixedly connected to the interior, the upper end side wall of the second piston is fixedly connected to a lifting rod, and the upper end of the lifting rod is fixedly connected to a lighting lamp through the side wall of the lifting tube.

Preferably, an L-shaped plate is fixedly connected to the upper end side wall of the supply shell, a push switch is fixedly connected to the lower end side wall of the L-shaped plate, and an alarm is fixedly connected to the upper end side wall of the L-shaped plate. The alarm is electrically connected to the push switch.

Preferably, a limit chute is provided on the inner wall of the upper end of the supply shell, and a limit plate is movable and clamped inside the limit chute. The lower end side wall of the limit plate is fixedly connected to the upper end side wall of the moving slider.

Compared with existing technology, the advantages of underground hydraulic support hydraulic supply equipment are:

1. The hydraulic oil that is about to enter the hydraulic rod can be stirred by the first strong magnet, round rod, supply shell, worm and transmission belt. Stirring will disperse the bubbles into the hydraulic oil and reduce the size of the bubbles. And increase the contact area between bubbles and hydraulic oil, and smaller bubbles will float to the surface of the hydraulic oil and gradually be released into the atmosphere. With the continuous stirring of the hydraulic oil, the rate of dissolution of the bubbles and the hydraulic oil is accelerated. , can prevent the hydraulic oil from containing bubbles before entering the hydraulic rod, which will affect the use effect and service life of the hydraulic rod, reduce friction and wear between hydraulic components, increase the service life of the equipment, and at the same time improve the response speed of the hydraulic rod. and the performance of the device.

2. Through the flow stirring plate, connecting rod, support rod, transmission rod and moving slider, the underground staff can intuitively observe the descending distance of the hydraulic rod by observing the upward movement distance of the lighting lamp, thus being able to reflect The distance from the underground geological settlement causes the alarm electrically connected to the push switch to sound an alarm, reminding the staff that the settlement phenomenon at the supported position is too serious and there is a risk of collapse underground, so that the staff can stay away from this place in time. , to prevent threats to the life safety of workers. It can eliminate bubbles in the hydraulic oil and simultaneously monitor the geological subsidence underground in real time. It can also promptly remind workers to stay away from this place, improving the safety of the equipment. and reliability.

3. Through the set limit ring, fixed plate, installation groove, baffle and return spring, when the hydraulic oil in the hydraulic rod breaks through the hydraulic valve and flows back, the connecting rod will rotate in the opposite direction, and the transmission of the rotating belt will Under the action, the rotation direction of the support rod will be changed. At this time, the third strong magnet and the fourth strong magnet will drive the transmission rod to rotate, and during the rotation of the rotating plate, it will push the baffle to move into the installation groove. The rotating plate will be limited so that the transmission rod can rotate, thereby driving the lighting lamp to rise and fall. The transmission plate can be rotated only when the hydraulic rod drops, preventing the lighting lamp from moving upward when the bubbles in the hydraulic oil are eliminated. It affects the staff's judgment of underground geological subsidence and improves the practicability and stability of the equipment during use.

Description of drawings

Figure 1 is a schematic structural diagram of the hydraulic supply equipment for an underground hydraulic support provided by the present invention;

Figure 2 is a side structural schematic diagram of the hydraulic supply equipment of the underground hydraulic support provided by the present invention;

Figure 3 is a schematic cross-sectional structural diagram of the hydraulic supply equipment for the underground hydraulic support provided by the present invention;

Figure 4 is a schematic cross-sectional structural diagram of the hydraulic supply equipment of the underground hydraulic support provided by the present invention from other angles;

Figure 5 is a partial structural schematic diagram of the hydraulic supply equipment of the underground hydraulic support provided by the present invention;

Figure 6 is an enlarged structural schematic diagram of part A of Figure 5 of the downhole hydraulic support hydraulic supply equipment provided by the present invention;

Figure 7 is a schematic rear structural cross-sectional view of the hydraulic supply equipment of the underground hydraulic support provided by the present invention;

Figure 8 is an enlarged schematic diagram of a partial structure of the hydraulic supply equipment for the underground hydraulic support provided by the present invention.

In the picture: 1 fixed base plate, 2 supply shell, 3 hydraulic rod, 4 support plate, 5 oil tank, 6 oil supply pump, 7 servo motor, 8 rotating rod, 9 oil supply pipe, 10 hydraulic valve, 11 fixed shell, 12 side rod , 13 the first strong magnet, 14 round rod, 15 worm, 16 transmission belt, 17 the second strong magnet, 18 worm gear, 19 driving bevel gear, 20 connecting rod, 21 driven bevel gear, 22 flow stirring plate, 23 transmission shell , 24 support rod, 25 rotating belt, 26 third strong magnet, 27 fourth strong magnet, 28 transmission rod, 29 fixed plate, 30 limit ring, 31 rotating plate, 32 installation groove, 33 baffle, 34 return spring , 35 threaded screw rod, 36 mounting plate, 37 moving slider, 38 push rod, 39 sealing shell, 40 first piston, 41 lifting cylinder, 42 second piston, 43 connecting pipe, 44 lifting rod, 45 lighting, 46L Type plate, 47 push switch, 48 alarm, 49 limit chute, 50 limit plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments.

As shown in Figures 1 to 8, the hydraulic supply equipment of the underground hydraulic support includes a fixed base plate 1. The upper end side wall of the fixed base plate 1 is fixedly connected with a supply shell 2. The upper end side wall of the supply shell 2 is symmetrically fixed with two hydraulic rods. 3. The upper output ends of the two hydraulic rods 3 are fixedly connected to the same support plate 4. The upper end side wall of the supply shell 2 is fixedly connected to the oil tank 5. The lower end inner wall of the supply shell 2 is fixedly connected to the oil supply pump 6. A servo motor 7 is also fixedly connected to the inner wall of the lower end. One end of the output end of the servo motor 7 is fixedly connected to a rotating rod 8. One end of the rotating rod 8 is fixedly connected to the input shaft of the oil supply pump 6. The water inlet end of the oil supply pump 6 penetrates the supply housing 2. Protruding inwardly from the side wall of the oil tank 5, the other end of the oil supply pump 6 is fixedly connected with an oil supply pipe 9. Both ends of the oil supply pipe 9 penetrate the side wall of the supply shell 2 and are fixedly connected with the oil inlet end of the hydraulic rod 3. , the side wall of the oil supply pipe 9 is provided with a hydraulic valve 10, the upper end side wall of the oil supply pipe 9 is provided with an opening, and a fixed shell 11 is sealed inside the corresponding opening, and a side rod 12 is rotatably connected to the inner wall of the lower end of the fixed shell 11 , the upper end of the side rod 12 penetrates the side wall of the fixed shell 11 and is fixedly connected with a first strong magnet 13. The inner walls of both ends of the supply shell 2 are rotationally connected with the same round rod 14, and the rod wall of the round rod 14 is fixedly sleeved with a worm 15 , the round rod 14 and the rod wall of the rotating rod 8 are rotationally connected with the same transmission belt 16, the upper end side wall of the first strong magnet is magnetically attracted to the second strong magnet 17, and the upper end side wall of the second strong magnet 17 is fixedly connected There is a worm gear 18. The worm gear 18 meshes with the worm 15. The rod wall of the side rod 12 is also fixedly connected with a driving bevel gear 19. The side wall of the fixed shell 11 is provided with a through hole, and the corresponding through hole is connected to the internal sealed rotating sleeve. Rod 20, one end of the connecting rod 20 located in the fixed shell 11 is fixedly connected to a driven bevel gear 21, the driven bevel gear 21 meshes with the driving bevel gear 19, and the connecting rod 20 is located on the rod wall outside the fixed shell 11 and has a fixed socket. A flow stirring plate 22 can prevent the hydraulic oil from containing bubbles before entering the hydraulic rod 3, which will affect the use effect and service life of the hydraulic rod 3, reduce friction and wear between hydraulic components, increase the service life of the equipment, and at the same time In order to improve the response speed of the hydraulic rod 3 and the performance of the equipment.

The upper end side wall of the oil supply pipe 9 is also provided with a through hole, and a transmission shell 23 is fixedly connected inside the corresponding through hole. The two end side walls of the transmission shell 23 located in the oil supply pipe 9 are provided with connecting rods 20 Through the rotating through hole, the inner wall of one end of the transmission shell 23 is rotatably connected with a support rod 24. The support rod 24 is rotatably connected to the outer wall of the connecting rod 20 with the same rotating belt 25. One end of the support rod 24 is fixedly connected with a third strong magnet 26. , a fourth strong magnet 27 is magnetically attracted to one end side wall of the third strong magnet 26, a threaded screw rod 35 is rotatably connected to one end side wall of the transmission shell 23, and a mounting plate 36 is fixedly connected to the inner wall of the lower end of the supply shell 2, and the threaded screw The other end of the rod 35 is rotatably connected to the side wall of the mounting plate 36. One end of the threaded screw rod 35 penetrates the side wall of the transmission housing 23 and is fixedly connected to one end of the transmission rod 28. The rod wall of the threaded screw rod 35 is rotated and sleeved with a thread. The moving slider 37 has a limiting chute 49 on the inner wall of the upper end of the supply shell 2. The limiting chute 49 moves and snaps into the limiting plate 50. The lower end side wall of the limiting plate 50 is fixed to the upper end side wall of the moving slider 37. The push rod 38 is fixedly connected to the side wall of one end of the moving slider 37, and the sealing shell 39 is fixedly connected to the inner wall of the upper end of the supply shell 2. The first piston 40 is connected to the internal sealing sleeve of the sealing shell 39, and one end of the push rod 38 passes through it. The side wall of the sealing shell 39 is fixedly connected to the side wall of the first piston 40. The upper end side wall of the supply shell 2 is fixedly connected to the lifting cylinder 41. The internal sealing sleeve of the lifting cylinder 41 is connected with the second piston 42. The lifting cylinder 41 is connected with the seal. The side walls of the shell 39 are provided with through holes, and the same communication pipe 43 is fixedly connected inside the corresponding through hole. The upper end side wall of the second piston 42 is fixedly connected with a lifting rod 44, and the upper end of the lifting rod 44 passes through the lifting tube 41 A lighting lamp 45 is fixedly connected to the side wall, an L-shaped plate 46 is fixedly connected to the upper end side wall of the supply shell 2, a push switch 47 is fixedly connected to the lower end side wall of the L-shaped plate 46, and a push switch 47 is fixedly connected to the upper end side wall of the L-shaped plate 46. The alarm 48, which is electrically connected to the push switch 47, can eliminate the bubbles in the hydraulic oil and simultaneously monitor the geological subsidence underground in real time, and can promptly remind the staff to stay away from this place to improve the situation. Equipment safety and reliability.

One end side wall of the fourth strong magnet 27 is fixedly connected with a transmission rod 28. One end of the transmission rod 28 is rotationally connected to the inner wall of one end of the transmission shell 23. The inner wall of the transmission shell 23 is provided with a fixed plate 29, and the lower end side wall of the fixed plate 29 is fixed. The limit ring 30 is connected, and the transmission rod 28 passes through the inside of the limit ring 30. The rod wall of the transmission rod 28 is fixedly connected with a plurality of rotating plates 31. The inner wall of the limit ring 30 is provided with a plurality of installation grooves distributed in an annular shape. 32. The inner walls of the plurality of installation grooves 32 are connected with baffles 33 through rotating shafts. One end of the side wall of the baffle 33 is fixedly connected with a return spring 34, and the other end of the return spring 34 is connected to the corresponding installation groove 32. The side wall is fixedly connected to allow the transmission plate to rotate when the hydraulic rod 3 drops, preventing the lighting 45 from moving upward when the bubbles in the hydraulic oil are eliminated, affecting the staff's judgment of the underground geological settlement, and improving the equipment practicality and stability during use.

The operating principle of the present invention is now described as follows:

When the hydraulic support needs to be used, the staff first installs the hydraulic support at the position that needs support through the fixed base plate 1. At this time, the servo motor 7 is started to drive the rotating rod 8 to rotate. During the rotation of the rotating rod 8, the supply voltage will be driven. The oil pump 6 works. At this time, the oil supply pump 6 will transport the hydraulic oil in the oil tank 5 to the hydraulic rod 3 through the oil supply pipe 9, causing the output end of the hydraulic rod 3 to rise, driving the support plate 4 to move upward, providing the required support. position for support, and in the process of transporting hydraulic oil, as the rotating rod 8 continues to rotate, under the transmission of the transmission belt 16, the round rod 14 will be driven to continuously rotate. As the round rod 14 continues to rotate, During the process, the worm 15 will rotate. At this time, the worm gear 18 meshed with the worm 15 will rotate following the rotation of the worm 15, thereby driving the second strong magnet 17 to rotate. During the continuous rotation of the second strong magnet 17, The first strong magnet 13, which is attracted by the magnetic force of the second strong magnet 17, is rotated, thereby driving the side rod 12 to follow the rotation. During the rotation of the side rod 12, the driving bevel gear 19 is driven to rotate. At this time, the driving bevel gear 19 is rotated. The driven bevel gear 21 meshed with the gear 19 will continue to rotate, thereby driving the connecting rod 20 to follow the rotation. During the continuous rotation of the connecting rod 20, the flow stirring plate 22 will start to rotate, and a series of transmissions are used to control the hydraulic pressure. The hydraulic oil is automatically stirred when the rod 3 is supplying oil, which can ensure the sealing of the oil supply pipe 9 and at the same time stir the hydraulic oil that is about to enter the hydraulic rod 3. Stirring will disperse bubbles into the hydraulic oil, reducing the The size of the bubbles increases the contact area between the bubbles and the hydraulic oil, and smaller bubbles float to the surface of the hydraulic oil and are gradually released into the atmosphere. With the constant stirring of the hydraulic oil, the bubbles are accelerated in the hydraulic oil. The medium dissolution rate can prevent the hydraulic oil from containing bubbles before entering the hydraulic rod 3, which will affect the use effect and service life of the hydraulic rod 3, reduce friction and wear between hydraulic components, increase the service life of the equipment, and at the same time Improve the response speed of the hydraulic rod 3 and the performance of the equipment;

When the weight borne by the support plate 4 is too large, causing the hydraulic oil in the hydraulic rod 3 to break through the blockage of the hydraulic valve 10 and flow back, the flow of the hydraulic oil will drive the flow stirring plate 22 to rotate, thereby driving the connecting rod 20 to follow the rotation. Since the servo motor 7 stops working at this time, the rotating rod 8 cannot rotate. When the connecting rod 20 rotates, the rotating rod 8 cannot rotate, which will cause the above structure to be unable to be driven when the connecting rod 20 rotates. At this time, the first strong magnet 13 will overcome the attraction force with the second strong magnet 17 and continue to rotate. At this time, the second strong magnet 17 will not follow the rotation. During the rotation of the connecting rod 20, under the transmission of the rotating belt 25 , will drive the support rod 24 to follow and rotate. During the continuous rotation of the support rod 24, the third strong magnet 26 will rotate, thereby driving the fourth strong magnet 27 that is magnetically attracted to the third strong magnet 26 to follow and rotate. At this time The fourth strong magnet 27 will drive the transmission rod 28 to rotate, and during the continuous rotation of the transmission rod 28, the threaded screw rod 35 will continue to rotate. At this time, the limiting chute 49 and the limiting plate 50 have a limiting effect. Next, since the limit plate 50 moves and snaps inside the limit chute 49, the moving slider 37 is fixedly connected to the limit plate 50, and the moving slider 37 can only follow the limit plate 50 to move, so that the sleeve can be rotated through the thread. The moving slider 37 connected to the wall of the threaded screw rod 35 will not rotate following the rotation of the threaded screw rod 35. With the continuous rotation of the threaded screw rod 35, the moving slider 37 will stably move to one end. During the movement of the slider 37, the push rod 38 will be pushed to move, thereby driving the first piston 40 to move in the sealing shell 39. As the first piston 40 moves, the air in the sealing shell 39 is continuously compressed. The tube 43 transports the compressed air into the lifting tube 41, thereby pushing the second piston 42 to move upward, driving the lifting rod 44 to follow. At this time, the lighting 45 fixedly connected to one end of the lifting rod 44 will move upward, and the work in the underground By observing the upward movement distance of the lighting lamp 45, the personnel can intuitively observe the descending distance of the hydraulic rod 3, thereby reflecting the distance of the underground geological settlement. When the lighting lamp 45 moves upward a certain distance, it indicates that the hydraulic rod 3 is lowered at this time. 3 If the sinking phenomenon is serious, the lighting 45 will press the push switch 47 at this time, causing the alarm 48 electrically connected to the push switch 47 to sound an alarm to remind the staff that the subsidence phenomenon at the supported position is too serious and there will be The risk of underground collapse can keep workers away from here in time to prevent threats to the life safety of workers. It can eliminate bubbles in the hydraulic oil and at the same time monitor the geological subsidence underground in real time, and can timely monitor Remind staff to stay away from this area to improve the safety and reliability of the equipment.

During the process of supplying oil to the hydraulic rod 3, due to the continuous rotation of the connecting rod 20, the support rod 24 will be driven to continuously rotate under the driving action of the rotating belt 25, so that the third strong magnet 26 and the fourth strong magnet 27 will continue to rotate. The rotation of the transmission rod 28 drives the transmission rod 28 to rotate. However, during the rotation of the transmission rod 28, the multiple rotating plates 31 fixedly connected to the rod wall of the transmission rod 28 will follow the rotation. However, when oil is supplied to the hydraulic rod 3, the transmission During the rotation of the rod 28, the rotating plate 31 will be in contact with the baffle 33, but the baffle 33 will be stuck in the installation groove 32. The rotating plate 31 cannot push the baffle 33 to move. At this time, the transmission rod 28 will stop. rotation, but the support rod 24 will continue to rotate. At this time, the third strong magnet 26 will overcome the magnetic force with the fourth strong magnet 27 and follow the rotation of the support rod 24. At this time, the fourth strong magnet 27 will not follow the third strong magnet 26. Rotation will not cause the lighting lamp 45 to move upward, but when the hydraulic oil in the hydraulic rod 3 breaks through the hydraulic valve 10 and flows back, the connecting rod 20 will rotate in the opposite direction, and under the driving action of the rotating belt 25, the support The rotation direction of the rod 24 changes. At this time, the third strong magnet 26 and the fourth strong magnet 27 will drive the transmission rod 28 to rotate, and during the rotation of the rotating plate 31, it will push the baffle 33 to move into the installation groove 32. The rotation plate 31 will not be limited, so that the transmission rod 28 can rotate, thereby driving the lighting lamp 45 to rise and fall, and the transmission plate can be rotated only when the hydraulic rod 3 descends, preventing the bubbles in the hydraulic oil from being removed. The lighting lamp 45 moves upward, which affects the staff's judgment of underground geological subsidence and improves the practicality and stability of the equipment during use.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (9)

1. The hydraulic supply equipment for the underground hydraulic support comprises a fixed bottom plate (1), and is characterized in that the upper end side wall of the fixed bottom plate (1) is fixedly connected with a supply shell (2), two hydraulic rods (3) are symmetrically and fixedly connected with the upper end side wall of the supply shell (2), two upper end output ends of the hydraulic rods (3) are fixedly connected with the same supporting plate (4), the upper end side wall of the supply shell (2) is fixedly connected with an oil tank (5), the lower end inner wall of the supply shell (2) is fixedly connected with an oil supply pump (6), the lower end inner wall of the supply shell (2) is also fixedly connected with a servo motor (7), one end output end of the servo motor (7) is fixedly connected with a rotating rod (8), one end of the rotating rod (8) is fixedly connected with an input shaft of an oil supply pump (6), the water inlet end of the oil supply pump (6) penetrates through the side wall of the supply shell (2) and inwards protrudes out of the oil tank (5), the other end of the oil supply pump (6) is fixedly communicated with an oil pipe (9), the two end inner walls of the oil supply pump (9) are fixedly connected with the oil pipe (9), the two end walls of the oil supply pump (2) are fixedly connected with the oil supply pump (9), the oil supply pump (6) and the oil supply pump (6) are fixedly connected with the oil pipe through the side wall of the oil pump (6) through the oil pump through one end inlet pipe, the inner wall of the lower end of the fixed shell (11) is rotatably connected with a side rod (12).

2. The underground hydraulic support hydraulic pressure supply device according to claim 1, characterized in that the upper end of the side rod (12) penetrates through the side wall of the fixed shell (11) and is fixedly connected with a first strong magnet (13), the inner walls of the two ends of the supply shell (2) are rotationally connected with the same round rod (14), the rod wall of the round rod (14) is fixedly sleeved with a worm (15), the round rod (14) and the rod wall of the rotating rod (8) are rotationally sleeved with the same transmission belt (16), the side wall of the upper end of the first strong magnet is fixedly connected with a second strong magnet (17) through magnetic force, the side wall of the upper end of the second strong magnet (17) is fixedly connected with a worm wheel (18), and the worm wheel (18) is meshed with the worm (15).

3. The hydraulic support hydraulic pressure supply device in the pit according to claim 2, characterized in that the wall of the side lever (12) is fixedly sleeved with a driving bevel gear (19), the side wall of the fixed shell (11) is provided with a through hole, and a connecting rod (20) is sleeved in a corresponding through hole in a sealed rotating way, one end of the connecting rod (20) located in the fixed shell (11) is fixedly connected with a driven bevel gear (21), the driven bevel gear (21) is meshed with the driving bevel gear (19), and the wall of the connecting rod (20) located outside the fixed shell (11) is fixedly sleeved with a plurality of flow stirring plates (22).

4. The underground hydraulic support hydraulic pressure supply device according to claim 1, characterized in that the upper end side wall of the oil supply pipe (9) is further provided with a through hole, a transmission shell (23) is fixedly sleeved in the corresponding through hole, through holes for the connecting rod (20) to rotate are formed in the two end side walls of the transmission shell (23) located in the oil supply pipe (9), a supporting rod (24) is rotatably connected to one end inner wall of the transmission shell (23), the supporting rod (24) is rotatably sleeved with the same rotating belt (25) with the outer wall of the connecting rod (20), one end of the supporting rod (24) is fixedly connected with a third strong magnet (26), and one end side wall of the third strong magnet (26) is adsorbed with a fourth strong magnet (27) through magnetic force.

5. The downhole hydraulic support hydraulic pressure supply device according to claim 4, wherein one end side wall of the fourth strong magnet (27) is fixedly connected with a transmission rod (28), one end of the transmission rod (28) is rotatably connected with one end inner wall of the transmission shell (23), the inner wall of the transmission shell (23) is provided with a fixing plate (29), the lower end side wall of the fixing plate (29) is fixedly connected with a limiting ring (30), the transmission rod (28) penetrates through the inside of the limiting ring (30), the rod wall of the transmission rod (28) is fixedly connected with a plurality of rotating plates (31), the inner wall of the limiting ring (30) is annularly distributed to form a plurality of mounting grooves (32), the inner walls of the mounting grooves (32) are all rotatably connected with baffle plates (33) through rotating shafts, one end side walls of the baffle plates (33) are all fixedly connected with reset springs (34), and the other ends of the reset springs (34) are all fixedly connected with the side walls of the corresponding mounting grooves (32).

6. The downhole hydraulic support hydraulic pressure supply device according to claim 5, wherein a threaded screw rod (35) is rotatably connected to one end side wall of the transmission case (23), a mounting plate (36) is fixedly connected to the inner wall of the lower end of the supply case (2), the other end of the threaded screw rod (35) is rotatably connected to the side wall of the mounting plate (36), one end of the threaded screw rod (35) penetrates through the side wall of the transmission case (23) and is fixedly connected to one end of the transmission rod (28), a movable sliding block (37) is sleeved on the rod wall of the threaded screw rod (35) through threaded rotation, and a push rod (38) is fixedly connected to one end side wall of the movable sliding block (37).

7. The downhole hydraulic support hydraulic pressure supply device according to claim 6, wherein the upper end inner wall of the supply housing (2) is fixedly connected with a sealing housing (39), a first piston (40) is sleeved in the sealing housing (39) in a sealing manner, one end of the push rod (38) penetrates through the side wall of the sealing housing (39) and is fixedly connected with the side wall of the first piston (40), the upper end side wall of the supply housing (2) is fixedly connected with a lifting cylinder (41), a second piston (42) is sleeved in the lifting cylinder (41) in a sealing manner, through holes are formed in the lifting cylinder (41) and the side wall of the sealing housing (39), one communicating pipe (43) is fixedly sleeved in the corresponding through holes, a lifting rod (44) is fixedly connected with the upper end side wall of the second piston (42), and the upper end of the lifting rod (44) penetrates through the side wall of the lifting cylinder (41) and is fixedly connected with an illuminating lamp (45).

8. The downhole hydraulic support hydraulic pressure supply apparatus according to claim 1, wherein an L-shaped plate (46) is fixedly connected to an upper end side wall of the supply housing (2), a push switch (47) is fixedly connected to a lower end side wall of the L-shaped plate (46), an alarm (48) is fixedly connected to an upper end side wall of the L-shaped plate (46), and the alarm (48) is electrically connected to the push switch (47).

9. The underground hydraulic support hydraulic supply device according to claim 5, wherein a limit chute (49) is formed in the inner wall of the upper end of the supply shell (2), a limit plate (50) is movably clamped in the limit chute (49), and the side wall of the lower end of the limit plate (50) is fixedly connected with the side wall of the upper end of the movable sliding block (37).