Vibration pin pulling device

Abstract

The invention relates to the technical field of mechanical pin pulling, in particular to a vibration pin pulling device which comprises a pin, a hydraulic support is attached to a mine surface, a supporting structure part, especially a rotating connection part, of the hydraulic support is often affected by poor sealing performance of the hydraulic support, the oxidation and rusting phenomena are caused by steam invasion, and the vibration pin pulling device is used for improving the stability of the supporting performance of the hydraulic support. The corrosion part of the pin needs to be replaced or maintained regularly, the pin serves as a main structural part of the rotating connection part of the hydraulic support, the oxidation state of the pin has a decisive factor on the supporting stability of the hydraulic support, part of the pin with the high corrosion degree needs to be pulled out and replaced, and however, the pin is damaged. For part of large-diameter pins in a mining hydraulic support, a traditional traction pulling mode is difficult to provide enough traction force to move out the pins, the pin pulling process is time-consuming and labor-consuming, the occupied time for mine tunnel construction is long, and the maintenance and updating efficiency is low.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical pin pulling, in particular to a vibration pin pulling device. Background Art

[0002] Hydraulic supports are structures used to control the mine pressure at the coal mining face. The mine pressure at the mining face acts on the hydraulic supports in the form of external loads. It uses high-pressure liquid as power to achieve functions such as support, top cutting, self-movement and pushing of scraper conveyors. Hydraulic supports are used in conjunction with high-power coal mining machines and large-capacity flexible scraper conveyors to form comprehensive mechanized equipment for the mining face. The working face using hydraulic supports has the advantages of high output, high efficiency, good safety, etc., and creates conditions for further automation of the working face.

[0003] The hydraulic support is set up close to the mine surface, and its supporting structure, especially the rotating connection part, is often affected by its poor sealing, which leads to water vapor intrusion and oxidation and rust. In order to improve the stability of the supporting performance of the hydraulic support, the rusted parts need to be replaced or maintained regularly. The pins are the main structural parts of the rotating connection parts of the hydraulic support. Their own oxidation state plays a decisive role in the support stability of the hydraulic support. Some pins with a high degree of rust need to be removed and replaced. However, for some large-diameter pins in the mining hydraulic support, the traditional traction removal method is difficult to provide enough traction to remove them. The pin removal process is time-consuming and labor-intensive, which takes a long time for the construction of the mine tunnel and has low maintenance and update efficiency.

[0004] In view of this, the present invention proposes a vibration pin pulling device to solve the above technical problems. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the present invention provides a vibration pin pulling device, thereby solving the problems that the traditional pin pulling method is difficult to provide sufficient traction to remove large diameter pins, the pin pulling process is time-consuming and labor-intensive, the construction of the mine tunnel takes a long time, and the maintenance and updating efficiency is low.

[0006] The technical solution adopted by the present invention to solve the technical problem is a vibration pin pulling device, comprising a balance plate and a telescopic mechanism slidably mounted on the balance plate, a vibration motor slidably mounted on the balance plate, and the telescopic mechanism is connected to the vibration motor;

[0007] A clamping mechanism is installed on the vibration motor, a docking shaft is fixed on the clamping mechanism, and the telescopic mechanism drives the clamping mechanism to vibrate away from the mining hydraulic support.

[0008] Preferably, a pin is installed on the mining hydraulic support, and a threaded hole is drilled at the end of the pin, and a threaded column matching the threaded hole at the end of the pin is arranged at one end of the docking shaft facing the pin.

[0009] Preferably, universal walking wheels are installed around the bottom of the walking frame, and a plurality of guide columns are fixedly installed in the middle of the upper end of the walking frame, and the guide columns are telescopic structures.

[0010] Preferably, a balance plate is fixedly installed at the telescopic end of the guide column, a pin pulling bracket is slidably installed on the balance plate, a pin pulling base is fixedly installed in the pin pulling bracket, a clamping table is fixedly installed on the side of the pin pulling base facing the pin, the docking shaft is slidably installed in the clamping table, and a clamping mechanism for providing clamping force is fixedly installed on one side of the clamping table.

[0011] Preferably, the clamping mechanism is a hydraulic clamping cylinder.

[0012] Preferably, a hydraulic lifting cylinder is fixedly mounted on the upper end of the traveling frame, the hydraulic lifting cylinders are distributed on both sides of the balancing plate, and the telescopic ends of the hydraulic lifting cylinders are transmission-connected to the balancing plate via hinge blocks.

[0013] Preferably, telescopic mechanisms are symmetrically installed on both sides of the pin pulling bracket, and the telescopic mechanisms are hydraulic pin pulling cylinders. The telescopic ends of the hydraulic pin pulling cylinders are fixedly connected to the traveling frame, and the fixed ends of the hydraulic pin pulling cylinders abut against the mining hydraulic support.

[0014] Preferably, rollers are evenly mounted on the bottom of the pin pulling bracket, and the rollers are in rolling contact with the upper end surface of the balance plate.

[0015] Preferably, the vibration motor is fixedly mounted on the upper part of the pin pulling base.

[0016] Preferably, a hydraulic valve and a controller providing a hydraulic power source are fixed to the upper portion of the traveling frame.

[0017] Beneficial effects of the present invention:

[0018] (1) In the present invention, a vibration unit is independently provided, which can accelerate the removal rate of the pins through high-frequency vibration, and can also accelerate the shaking off of dust or debris on the hydraulic support in the mine tunnel, further improving the cleaning and maintenance efficiency of the hydraulic support, and maintaining the state of the pin puller itself through self-cleaning, thereby improving the high consistency of the connection stability between it and the pins during continuous operation, improving the pin pulling efficiency and the stability and smoothness of the pin pulling process.

[0019] (2) In the present invention, the pin puller is introduced to make it a transition piece and a connecting piece in the pin pulling operation. The screw is installed on one end of the pin puller by rotating. During the process of connecting it with the threaded hole on the pin, it can be screwed in manually or electrically. The operation is simple and convenient, and the meshing force between the threads can provide sufficient traction for the pin pulling. By replacing the screws individually or replacing the pin puller as a whole, it can adapt to the pulling of pins of various diameters.

[0020] (3) In the present invention, a multi-directional platform is added to improve the degree of automation of the pin puller during the pin pulling operation, and the pin puller has the ability to self-move and spatially position in the tunnel. By reserving threaded holes on large-diameter pins, the problem of the short exposed length of the ends of traditional pins after installation, which makes it difficult to effectively clamp the pins, is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall connection structure in the first embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of top view;

[0024] Figure 3 It is a schematic diagram of the overall connection structure in the second embodiment of the present invention;

[0025] Figure 4 for Figure 3 Schematic diagram of top view;

[0026] Figure 5 Schematic diagram of the positional relationship between the vibrator and the clamping chamber in the second embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the positional relationship between the pin puller and the clamping chamber in the second embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the positional relationship between the pin puller and the chip ejector rod in the second embodiment of the present invention;

[0029] Figure 8 for Figure 7 A is an enlarged schematic diagram;

[0030] Fig. 9 for Figure 7 The enlarged schematic diagram of point B in FIG.

[0031] Fig.10 It is a partial cross-sectional schematic diagram of a pin puller in a second embodiment of the present invention;

[0032] Fig.11 for Fig.10 The enlarged schematic diagram of point C in FIG.

[0033] Fig.12 for Fig.10 The enlarged schematic diagram of D in FIG.

[0034] Fig.13A partial cross-sectional schematic diagram of a chip cleaning rod in a second embodiment of the present invention;

[0035] In the figure:

[0036] a, walking frame; b, docking shaft; c, vibration motor; a1, walking wheel; a2, guide column; a3, balance board; a4, pin pulling bracket; a5, pin pulling base; a6, clamping table; a7, hydraulic clamping cylinder; a8, hydraulic lifting cylinder; a81, hinge block; a41, hydraulic pin pulling cylinder; a42, roller; d, controller;

[0037] 1. Pin; 2. Multi-directional platform; 3. Pin puller; 4. Vibrator; 5. Clamping bin; 51. Hydraulic cylinder; 31. Screw; 6. Chip cleaning rod; 52. Plug-in ring; 53. Chip removal rod; 54. Double ring; 541. Fixed ring; 542. Movable ring; 543. Coaxial rod; 544. Progressive plate; 55. Stop pin; 56. Chip removal motor; 545. Synchronous belt; 32. Support ring; 33. Tangential disk; 321. Roller; 322. Tension spring; 34. One-way shaft; 341. Torsion spring; 342. One-way plate; 57. Gear ring; 571. One-way rod; 58. Push rod; 581. Gear disk; 61. End cap; 35. Air bag; 62. Air cavity; 63. Pressure plate; 36. Corrugated annular surface; 631. Undulating bead; 64. Telescopic block. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] The present invention provides a vibration pin pulling device to solve the problems that the traditional pin pulling method is difficult to provide sufficient traction to remove large-diameter pins, the pin pulling process is time-consuming and labor-intensive, the construction of the mine tunnel takes a long time, and the maintenance and updating efficiency is low.

[0040] Embodiment 1:

[0041] like Figure 1 and Figure 2 As shown, a vibration pin pulling device includes a traveling frame a and a docking shaft b, wherein the docking shaft b is fixedly mounted on the traveling frame a, wherein the pin 1 is arranged on a mining hydraulic support, and a threaded hole is drilled at the end of the pin 1, and a threaded column matching with the threaded hole at the end of the pin 1 is arranged at one end of the docking shaft b facing the pin 1, a vibration motor c is arranged on the traveling frame a, and a hydraulic valve and a controller d providing a hydraulic power source are fixed on the upper part of the traveling frame a.

[0042] Through the docking and locking effect between the threaded column at the end of the docking shaft b and the threaded hole at the end of the pin 1, the meshing force between the threads can provide sufficient traction for the removal of the pin 1. By replacing the docking shaft b, threaded columns of various diameters can be provided to adapt to the removal of pins 1 of various diameters.

[0043] like Figure 1 and Figure 2 As shown, universal walking wheels a1 are installed around the bottom of the walking frame a, and a plurality of guide columns a2 are fixedly installed in the middle of the upper end of the walking frame a. The guide columns a2 are telescopic structures, and a balance plate a3 is fixedly installed at the telescopic end of the guide columns a2. A pin pulling bracket a4 is slidably installed on the balance plate a3, and a pin pulling base a5 is fixedly installed in the pin pulling bracket a4. A clamping platform a6 is fixedly installed on the side of the pin pulling base a5 facing the pin 1, and a docking shaft b is slidably installed in the clamping platform a6. A hydraulic clamping cylinder a7 for providing clamping force is fixedly installed on one side of the clamping platform a6. A hydraulic lifting cylinder a8 is fixedly installed on the upper end of a, and the hydraulic lifting cylinder a8 is distributed on both sides of the balance plate a3, and the telescopic end of the hydraulic lifting cylinder a8 is transmission-connected to the balance plate a3 through a hinge block a81. Hydraulic pin pulling cylinders a41 are symmetrically installed on both sides of the pin pulling bracket a4, and the telescopic end of the hydraulic pin pulling cylinder a41 is fixedly connected to the walking frame a, and the fixed end of the hydraulic pin pulling cylinder a41 abuts against the bottom of the pin pulling bracket a4 on the mining hydraulic support. Rollers a42 are evenly installed, and the rollers a42 are in rolling contact with the upper end surface of the balance plate a3, and the vibration motor c is fixedly installed on the upper part of the pin pulling base a5.

[0044] In order to achieve rapid positioning during the pinning work, the walking frame a travels in the tunnel through the universal walking wheel a1 and realizes the fixed-point parking function. The hydraulic power is provided in time through the hydraulic valve and the controller d. According to the size of the pin to be pulled out, the appropriate docking shaft b is selected for the pinning work, and the docking shaft b is installed in the clamping table a6. Subsequently, the hydraulic lifting cylinder a8 controls the overall lifting of the balance plate a3, thereby driving the docking shaft b to be lifted as a whole. The guide column a2 provided can provide stability protection for the movement process of the docking shaft b. Subsequently, the hydraulic pinning cylinder a41 is started to work, and the pinning bracket a4 is pulled by its telescopic end to move as a whole in the direction of the mining hydraulic bracket, thereby driving the docking shaft b to approach the pin direction. When the docking shaft b reaches the predetermined position, the working The operator rotates the docking shaft b, thereby realizing the threaded connection and fixation between the docking shaft b and the pin 1, and at this time, the fixed end of the hydraulic pin pulling cylinder a41 fits into the contour of the mining hydraulic support. When the docking shaft b is connected to the pin 1, the docking shaft b is clamped by the hydraulic clamping cylinder a7, and then the hydraulic pin pulling cylinder a41 is started to work in reverse to extend its telescopic end outward. At this time, since the walking frame a is in the parking state, during the continuous extension of the telescopic end of the hydraulic pin pulling cylinder a41, the distance between the pin pulling bracket a4 and the mining hydraulic pressure gradually increases, and the pin pulling operation is realized in this process. In order to cooperate with the smooth progress of the pin pulling operation and improve the efficiency of the pin pulling operation, the vibration motor c is started synchronously to accelerate the pin removal rate through high-frequency vibration.

[0045] Embodiment 2:

[0046] The pin pulling technical solution is basically the same as that in the first embodiment, except that in this embodiment, the docking shaft b is replaced with a pin puller 3, and a clamping bin 5 used in conjunction with the pin puller 3 is introduced to meet the requirements of the pin pulling operation for poor quality pins 1. Figures 3 to 7 As shown, in order to improve the efficiency of the large-diameter pin 1 extraction operation, the preferred embodiment of the present invention proposes a vibrating pin extraction device, including a pin 1, a multi-directional platform 2 and a pin extractor 3. The pin 1 is fixedly mounted on a mining hydraulic support, and a threaded sinking hole is provided at the exposed end of the pin 1. A walking device is provided at the bottom of the multi-directional platform 2. The pin extractor 3 is movably mounted on the upper part of the multi-directional platform 2. The multi-directional platform 2 is provided with up-and-down, left-and-right, and front-and-back moving components. A vibrator 4 is fixedly mounted on the upper part of the multi-directional platform 2. The vibrator 4 cooperates with the pin puller 3. In addition, it also includes a clamping bin 5, which is fixedly installed on the upper part of the multi-directional platform 2. The pin puller 3 is a cylindrical structure similar to the pin 1. The pin puller 3 is movably installed on the clamping bin 5, and the clamping bin 5 is provided with a hydraulic cylinder 51 for clamping the pin puller 3. A screw 31 that is threadedly matched with the threaded hole at the end of the pin 1 is rotatably installed at one end of the pin puller 3, and a chip cleaning rod 6 is movably installed at the other end of the pin puller 3, and the chip cleaning rod 6 is coaxial with the pin puller 3.

[0047] The present invention utilizes the addition of a multi-directional platform 2 to improve the degree of automation of the pin puller 3 when performing the pin 1 extraction operation, and has the ability to self-propelled and spatially positioned in the tunnel. By reserving threaded holes on the large-diameter pins 1, the difficulty of effectively clamping the traditional pins, which has a short exposed length at the end after installation, is avoided. In addition, the present invention introduces the pin puller 3 to make it a transition piece and a connecting piece in the pin 1 extraction operation. The screw 31 is installed at one end of the pin puller 3 by rotating, and the screw 31 is engaged with the threaded hole on the pin 1. During the connection process, it can be screwed in manually or electrically, which is simple and convenient to operate, and can provide sufficient traction for the removal of the pin 1 through the meshing force between the threads. By replacing the screws 31 individually or replacing the pin puller 3 as a whole, it can adapt to the removal of pins 1 of various diameters. In addition, the present invention is independently provided with a vibrator 4, which can accelerate the removal rate of the pin 1 through high-frequency vibration, and can also accelerate the shaking off of dust or debris on the hydraulic support in the mine tunnel, thereby further improving the cleaning and maintenance efficiency of the hydraulic support.

[0048] Furthermore, when the pin 1 is rusted in the tunnel, the pin puller 3 is used to pull the pins out, in order to avoid the transfer of rust and the additional pollution caused by it, Figure 5 , Figure 6 and Figure 7 As shown, the end of the pin puller 3 slides through the side wall of the clamping bin 5. At this time, the screw 31 or the chip cleaning rod 6 located at the end of the pin puller 3 is located in the inner cavity of the clamping bin 5. A plug-in ring 52 is fixedly installed on the side of the inner wall of the clamping bin 5 away from the pin puller 3. The plug-in ring 52 has a circumferentially opened plug-in hole on its annular surface. A chip removing rod 53 is fixedly installed in the plug-in hole. The movable end of the chip removing rod 53 extends to the outer position of the end of the pin puller 3. The chip removing rod 53 is made of tough material. The middle axis of the chip removing rod 53 and the middle axis of the plug-in ring 52 maintain an inclined angle within the range of 5 to 25 degrees, and hard bristles are evenly arranged on the side of the chip removing rod 53 facing the axis of the pin puller 3.

[0049] When the pin puller 3 is transferred in the tunnel or is in normal shutdown maintenance, the screw 31 on the pin puller 3 is directed toward the inside of the clamping bin 5. In the initial state, the circumferentially arranged chip removal rods 53 are distributed in the shape of a cone on the periphery of the screw 31. At this time, the hard bristles arranged on the chip removal rods 53 do not contact the screw 31, so that the screw 31 is located on the inside of the clamping bin 5, which can provide a certain degree of moisture and corrosion protection for it. At the same time, according to the number of times the screw 31 is used or the amount of rust adhered to its threaded surface during the pin pulling operation, an appropriate amount of rust remover can be sprayed on its surface through manual or automatic spraying equipment to enhance its own anti-corrosion ability. When it is necessary to actively remove rust from the surface of the screw 31, the rust removal can be carried out by utilizing the sweeping ability of the hard bristles.

[0050] Furthermore, when there are screws 31 of different diameters to be replaced, in order to improve the contact degree and effect between the hard brush and the screws 31 during the active rust removal operation, such as Figures 6 to 8 As shown, a double ring 54 is rotatably installed on the inner wall of the clamping bin 5, the double ring 54 is coaxial with the plug-in ring 52, and the double ring 54 is located on the outside of the plug-in ring 52, the double ring 54 is divided into a fixed ring 541 and a movable ring 542, a coaxial rod 543 is connected between the fixed ring 541 and the movable ring 542, the fixed ring 541 is rotatably installed on the inner wall of the clamping bin 5, the movable ring 542 is movably installed on the coaxial rod 543, the distance between the movable ring 542 and the fixed ring 541 is adjustable, and the inner ring surface of the movable ring 542 is in sliding contact with the chip removal rod 53.

[0051] In actual work, by adjusting the installation position of the movable ring 542 on the coaxial rod 543, the distance between the movable ring 542 and the fixed ring 541 can be changed accordingly. At this time, since the chip removing rod 53 always remains in an inclined state, during the process of adjusting the position of the movable ring 542, the enclosing diameter of the frustum shape of the several chip removing rods 53 arranged in a frustum shape also changes relatively, thereby changing the distance between the hard brush and the screw 31, so that an appropriate gap is maintained between the hard brush and screws 31 of different diameters to meet the effect and strength of active rust removal operations.

[0052] Furthermore, in order to improve the surface of the screw 31 to always keep it clean during continuous operation, and to improve the automatic rust removal capability of the surface of the screw 31, the screw 31 can maintain a stable connection capability every time it is connected with the pin 1. Figures 6 to 9 As shown, several of the chip withdrawing rods 53 are divided into two groups on both sides of the axis of the plug-in ring 52, and a gap is reserved between the two groups of chip withdrawing rods 53. The inner ring surface of the movable ring 542 is symmetrically installed with progressive plates 544 along its diameter direction. The progressive plates 544 are inserted into the gap between the two groups of chip withdrawing rods 53, and the inclined plate surface of the progressive plates 544 is in sliding contact with the chip withdrawing rods 53. The end position of the progressive plates 544 is provided with an arc-shaped curved surface, and the side of the arc-shaped curved surface facing the chip withdrawing rod 53 is evenly provided with wavy stripes. A stopping pin 55 is fixedly installed on the inner wall of the clamping bin 5, and the movable end of the chip withdrawing rod 53 is in contact with the stopping pin 55. A chip withdrawing motor 56 is fixedly installed on the top of the clamping bin 5, and a synchronous wheel is fixedly installed on the output shaft of the chip withdrawing motor 56. The outer ring surface of the movable ring 542 is provided with a meshing groove matching the synchronous wheel, and a synchronous belt 545 is sleeved between the synchronous wheel and the movable ring 542.

[0053] During operation, after the screw 31 is pulled out, the pulled out pin 1 is manually removed and replaced or transferred. During this process, in order to avoid residual rust on the screw 31, which may cause negative interference to the next pulling out operation, the pin puller 3 is turned during the transfer of the pulling out position, and the screw 31 is directed toward the inside of the clamping bin 5. Subsequently, the chip removing motor 56 is started to operate, and the synchronous wheel is driven to rotate by the chip removing motor 56, and then the movable ring 542 is rotated by the transmission action of the synchronous belt 545, and the progressive plate 544 is driven to rotate synchronously by the movable ring 542. At this time, the progressive plate 544 is squeezed by the inward push of its inclined surface during the rotation process, so that the chip removing rod 53 in contact with it gradually moves toward the central area of ​​the cone. , and in the process of approaching, the hard brush on the chip removing rod 53 contacts the thread profile on the screw 31 and forms an extrusion or friction effect, thereby removing the rust adhering to the screw 31. After the arc-shaped surface at the end position of the progressive plate 544 contacts the chip removing rod 53, part of the chip removing rod 53 maintains a predetermined inclination angle unchanged under the thrust of the arc-shaped surface, and forms a continuous extrusion pressure between the surface of the screw 31, thereby improving the degree of removal of the rust stuck in the thread groove. At the same time, as the wavy stripes on the arc surface slide one by one, the chip removing rod 53 in contact with it produces an oscillation effect within a certain degree of freedom, thereby improving the hard brush for the removal of rust on the surface of the screw 31, and at the same time improving the chip removal ability of the chip removing rod 53 itself to prevent secondary residue.

[0054] Furthermore, when performing continuous pinning operations, in order to improve the efficiency of the pinning operations, Figure 6 , Figure 7 and Fig.10 As shown, an electric slider assembly is fixedly installed on the outside of the clamping bin 5, a support ring 32 is movably installed in the middle of the pin puller 3, a tangential disk 33 is fixedly installed at the bottom of the support ring 32, the tangential disk 33 is rotatably installed on the upper part of the electric slider assembly, and a tangential motor for driving the tangential disk 33 to rotate is fixed on the electric slider assembly, a roller 321 is rotatably installed on the contact surface between the outer contour of the pin puller 3 and the support ring 32, and a tension spring 322 is bidirectionally connected between the lower part of the pin puller 3 and the side wall of the support ring 32.

[0055] After the screw 31 is unpinned once, the tangential disk 33 is driven to move forward and backward by the electric slider assembly, and the tangential disk 33 is driven to rotate by the tangential motor to realize the switching of the working position of the screw 31. During the unpinning operation, the screw 31 is directed toward the outside of the clamping bin 5. At this time, the chip cleaning rod 6 is located on the inside of the clamping bin 5. The cleaning effect of the chip removing rod 53 can realize the cleaning effect of the residual rust on the chip cleaning rod 6. When the unpinning is completed and the next workstation is transferred or the screw 31 is cleaned and maintained, the screw 31 is directed toward the inside of the clamping bin 5. At this time, the chip removing rod 53 is used to clean the screw 31. This cycle is repeated, and the direction of the screw 31 is quickly switched by electric means, thereby improving the efficiency of long-term and large-quantity unpinning operations.

[0056] Furthermore, in order to improve the connection speed between the screw 31 and the pin 1 during the pin removal operation, and at the same time reduce the negative interference caused by the rust that may remain in the threaded hole of the pin 1, as Figure 6 and Figure 7 ,as well as Figures 9 to 11 As shown, a one-way shaft 34 is rotatably installed on the inner side of one end of the pin puller 3, and a torsion spring 341 is connected between the one-way shaft 34 and the inner cavity of the pin puller 3. The inner end of the chip cleaning rod 6 is slidably inserted into the inner side of the one-way shaft 34, and the exposed end of the chip cleaning rod 6 is evenly inserted with hard bristles of the same material as those on the chip removal rod 53. A through groove is opened in the middle of the pin puller 3, and a one-way plate 342 is fixedly installed on the outer side of the one-way shaft 34 along its tangential direction. The one-way plate 342 is inclined, and a one-way plate 342 is rotatably installed on the outer wall of the clamping bin 5 facing the pin puller 3. The gear ring 57 has a one-way rod 571 fixedly mounted on it. The one-way rod 571 is parallel and biased toward one side of the pin puller 3. The upper end of the one-way plate 342 is also biased toward one side of the pin puller 3 after obliquely passing through the upper through groove of the pin puller 3. The one-way rod 571 is in sliding contact with the inclined surface of the one-way plate 342. An "L"-shaped lever 58 is rotatably mounted on the clamping bin 5, and the bent end of the lever 58 rests on the coaxial rod 543. A toothed disc 581 is fixedly mounted on the straight end of the lever 58, and the toothed disc 581 is meshed with the gear ring 57.

[0057] During operation, when the pin 1 faced by the pin pulling operation is severely corroded, the chip cleaning rod 6 is directed toward the threaded hole of the pin 1. Subsequently, under the operation of the multi-directional platform 2, the chip cleaning rod 6 is slowly entered into the inner side of the threaded hole of the pin 1. At this time, the hard brush arranged on the exposed end of the chip cleaning rod 6 enters the inner side of the threaded hole of the pin 1, and the rust in the threaded hole is stripped and cleaned through hard contact and extrusion puncture. At the same time, along with the operation of the chip removal motor 56, while the surface cleaning and maintenance of the screw 31 is achieved, as the movable ring 542 rotates, it forms intermittent contact with the angled end of the lever 58 during the rotation process, and during the contact process, the lever 58 is rotated through the action of several pages. At this time, the lever 58 drives the toothed disc 581 to rotate, and then drives the one-way rod 571 to rotate through the meshing action between the toothed disc 581 and the gear ring 57. Since the one-way rod 571 and the one-way plate 342 are both biased toward one side of the pin puller 3 (i.e., the chip cleaning rod 6 When facing the outside of the clamping bin 5, the one-way rod 571 contacts the inclined surface of the one-way plate 342 during deflection, and pushes the one-way plate 342 to deflect through the extrusion effect. When the chip cleaning rod 6 faces the inside of the clamping bin 5, the one-way plate 342 is located on the back side of the deflection direction of the one-way rod 571, that is, there is no contact between the two), so that the one-way rod 571 pushes the one-way plate 342 to deflect during the deflection process, and then drives the one-way shaft 34 to rotate through the one-way plate 342. At this time, the torsion spring 341 can provide a rotational force for the reset of the one-way shaft 34, and the hard brush at the end of the chip cleaning rod 6 can be driven through the one-way shaft 34 to reciprocate in the threaded hole of the pin 1. Then, during the deflection process, the debris attached to the threaded hole is progressively cleaned and stripped off, thereby improving the cleanliness of the threaded hole of the pin 1. Through the self-cleaning effect, the smoothness and connection stability of the subsequent screw 31 during the threaded connection process are improved, thereby improving the pin pulling efficiency and pin pulling stability.

[0058] Furthermore, in order to further improve the cleaning effect on the inner side of the threaded hole of the pin 1, the screwing distance and connection stability of the screw 31 during the threaded connection are improved, such as Figures 10 to 13 As shown, the exposed end of the chip cleaning rod 6 is coupled with an end cap 61, the top of the end cap 61 can be set to a conical head or a drill bit with a drilling function, an air bag 35 is installed on the inner side of the pin puller 3, and an air valve for adjusting the gas flow direction is arranged in the air bag 35, an air cavity 62 connected with the air bag 35 is opened in the chip cleaning rod 6, and the outlet of the air cavity 62 is inclined toward the inner side of the end cap 61, and a pressure plate 63 for squeezing the air bag 35 is fixedly installed in the middle part of the chip cleaning rod 6, and a gradually changing undulating annular surface 36 is fixedly set on the inner side of the pin puller 3, and an undulating bead 631 in contact with the undulating annular surface 36 is rollingly installed on the pressure plate 63, and a telescopic block 64 in elastic contact with the one-way shaft 34 is provided at the inner end of the chip cleaning rod 6.

[0059] When the chip cleaning rod 6 enters the inner side of the threaded hole of the pin 1, the one-way rod 571 and the one-way plate 342 are reciprocated by controlling the running direction of the chip removal motor 56. At this time, the chip cleaning rod 6 synchronously generates reciprocating rotation and swings, and drives the pressure plate 63 to move synchronously during the swinging process. At this time, the pressure plate 63 and the airbag 35 form a cyclic squeezing effect, and during the squeezing process, the gas in the airbag 35 intermittently enters the air cavity 62 and is finally ejected from the end cap 61. The independently arranged end cap 61 can be the air cavity 62. The air outlet position is provided with protection to prevent rust from entering the inner side of the air cavity 62 during the rust removal process. At the same time, through the selection of materials, the end cap 61 has wear-resistant properties, which can reduce the fatigue and wear of the chip cleaning rod 6 during continuous work and increase the continuous working time. After the gas is ejected at the position of the air cavity 62, it is immediately blown to the inner side of the threaded hole of the pin 1 and flows from the inside to the outside. During the outward flow of the air flow, the rust in the threaded hole and on the hard brush is carried out and moved outward, thereby reducing the residual rust and improving the cleaning efficiency. At the same time, along with the deflection movement of the chip cleaning rod 6, the undulating beads 631 roll cyclically on the concave and convex surface of the undulating annular surface 36. At this time, the telescopic block 64 produces adaptive elongation and contraction changes under this action, thereby causing the chip cleaning rod 6 to produce telescopic movement within a certain degree of freedom. At this time, the chip cleaning rod 6 deflects and telescopically moves at the same time, and the hard brush at its end position performs a multi-directional cleaning action in the threaded hole of the pin 1, and actively removes chips through the blowing of airflow during the cleaning process, thereby improving the cleaning efficiency and removal of iron chips in the threaded hole of the pin 1. The cleaning effect is improved, thereby increasing the screwing distance and connection stability of the subsequent screw 31 during connection, improving the pin pulling effect and continuous pin pulling efficiency. In addition, when there are pins without threaded holes in the pin pulling operation, by replacing the end cap 61 with a drill bit and replacing the one-way shaft 34 with a motor for driving the drill bit to drill, the installation of the one-way plate 342 is cancelled, so that the drilling motor output shaft is fixedly connected to the chip cleaning rod 6. At this time, drilling can be performed before pin pulling, thereby providing a traction fulcrum for subsequent pin pulling, meeting the application of multiple occasions and various pin 1 pulling operations.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand 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 the present invention is defined by the attached claims and their equivalents.

Claims

1. A vibrating pin pulling device, comprising a balance plate (a3) ​​and a telescopic mechanism slidably mounted on the balance plate (a3), characterized in that: A vibration motor (c) is slidably mounted on the balance plate (a3), and the telescopic mechanism is connected to the vibration motor (c); A clamping mechanism is installed on the vibration motor (c), a docking shaft (b) is fixed on the clamping mechanism, and the telescopic mechanism drives the clamping mechanism to vibrate away from the mining hydraulic support.

2. A vibrating pin pulling device according to claim 1, characterized in that: A pin (1) is installed on a mining hydraulic support, and a threaded hole is drilled at the end of the pin (1). A threaded column matching the threaded hole at the end of the pin (1) is arranged at one end of a docking shaft (b) facing the pin (1).

3. A vibrating pin pulling device according to claim 1, characterized in that: Universal walking wheels (a1) are installed around the bottom of the walking frame (a), and a plurality of guide columns (a2) are fixedly installed in the middle of the upper end of the walking frame (a), and the guide columns (a2) are telescopic structures.

4. A vibrating pin pulling device according to claim 3, characterized in that: A balance plate (a3) ​​is fixedly installed at the telescopic end of the guide column (a2), a pin pulling bracket (a4) is slidably installed on the balance plate (a3), a pin pulling base (a5) is fixedly installed in the pin pulling bracket (a4), a clamping platform (a6) is fixedly installed on the side of the pin pulling base (a5) facing the pin (1), a docking shaft (b) is slidably installed in the clamping platform (a6), and a clamping mechanism for providing a clamping force is fixedly installed on one side of the clamping platform (a6).

5. A vibrating pin pulling device according to claim 1 or 4, characterized in that: The clamping mechanism is a hydraulic clamping cylinder (a7).

6. A vibrating pin pulling device according to claim 3, characterized in that: A hydraulic lifting cylinder (a8) is fixedly mounted on the upper end of the walking frame (a), the hydraulic lifting cylinders (a8) are distributed on both sides of the balance plate (a3), and the telescopic ends of the hydraulic lifting cylinders (a8) are transmission-connected to the balance plate (a3) ​​via hinge blocks (a81).

7. A vibrating pin pulling device according to claim 4, characterized in that: Telescopic mechanisms are symmetrically installed on both sides of the pin pulling bracket (a4), and the telescopic mechanisms are hydraulic pin pulling cylinders (a41). The telescopic ends of the hydraulic pin pulling cylinders (a41) are fixedly connected to the walking frame (a), and the fixed ends of the hydraulic pin pulling cylinders (a41) are against the mining hydraulic bracket.

8. A vibrating pin pulling device according to claim 7, characterized in that: Rollers (a42) are evenly installed on the bottom of the pin pulling bracket (a4), and the rollers (a42) are in rolling contact with the upper end surface of the balance plate (a3).

9. A vibrating pin pulling device according to claim 1, characterized in that: The vibration motor (c) is fixedly mounted on the upper part of the pin pulling base (a5).

10. A vibrating pin pulling device according to claim 1, characterized in that: A hydraulic valve and a controller (d) for providing a hydraulic power source are fixed on the upper part of the traveling frame (a).

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