Pin pulling device for hydraulic support

Abstract

The utility model discloses a pin pulling device for a hydraulic support. Comprising a mounting base, a pin pulling frame arranged on the mounting base in a sliding mode, a vibration piece arranged on the pin pulling frame and used for vibrating a pin shaft to loosen the pin shaft, and a pin pulling piece rotationally connected with the vibration piece and the pin pulling frame, used for being in threaded connection with a threaded inner hole of the pin shaft and transmitting vibration acting force. The rotating mechanism is used for driving the pin pulling part to rotate; the pin pulling driving part is arranged on the mounting seat, the movable end of the pin pulling driving part is connected with the pin pulling frame, and the pin pulling driving part is used for driving the pin pulling frame to slide relative to the mounting seat; according to the scheme, the mounting base, the pin pulling frame, the vibration piece, the pin pulling piece, the rotating mechanism and the pin pulling driving piece cooperate to pull out the pin shafts on the hydraulic support, compared with the prior art, the characteristic that the pin shafts to be pulled out for disassembling the hydraulic support are all provided with threaded inner holes is fully utilized, all the pin shafts on the hydraulic support can be sequentially pulled out, the applicability is good, and the working efficiency is high. And the whole pin pulling process does not need human assistance, the pin pulling efficiency is high, and the pin pulling process is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mining equipment, in particular to a pin pulling device for hydraulic support. BACKGROUND

[0002] Hydraulic support is an important equipment in the mine, usually including top beam, shield beam, tail beam, front and rear connecting rods and bottom plate and other components, each component is connected by pin shaft. Due to the harsh working environment in the mine, in order to ensure the reliability of the hydraulic support during work, the hydraulic support often needs to be moved to the maintenance center, and each component is maintained and repaired after disassembling the pin shaft, and the severely damaged components are replaced.

[0003] At present, in order to improve the disassembly efficiency of the pin shaft on the hydraulic support, such as Chinese invention patent application CN110238630A discloses a kind of mining hydraulic support pin shaft automatic disassembly equipment and its application, lifting platform bottom is installed on walking trolley by scissor mechanism, one side of hydraulic cylinder pin pulling device is connected with support plate, and the bottom of hydraulic cylinder pin pulling device and support plate is placed on the work rail by electric roller, stud replacement device is installed on support plate, stud fixing device is connected in the groove track opened on support plate and is driven by motor A;Hydraulic cylinder pin pulling device front end is connected with pin shaft clamping device, and the end of hydraulic cylinder pin pulling device is provided with image recognition processing device;Hoisting device and control console are installed on walking trolley;Walking trolley, hydraulic cylinder pin pulling device, stud fixing device, stud replacement device, scissor mechanism, hoisting device, image recognition processing device, motor A, electric roller are all connected and controlled by control console.This application can replace traditional manual operation mode, realize automatic and intelligent disassembly pin shaft operation.

[0004] Such as Chinese utility model patent CN207824339U discloses a special equipment for disassembling hydraulic support pin shaft, including vibration device for loosening pin shaft;Pin pulling device for pulling out pin shaft;Vibration positioning device connected with the vibration device for lifting or rotating the vibration device;Pin pulling positioning device connected with the pin pulling device for lifting or rotating the pin pulling device;Walking and rotating device connected with the vibration positioning device and the pin pulling positioning device respectively for driving them to move. By applying the equipment, since the vibration device and the pin pulling device can not only realize vibration and disassembly integration and rapidity, but also loosen and disassemble pin shafts in different positions, the overall working time is shortened, and the working efficiency is improved;Moreover, it can also help to realize automation, get rid of manual loosening or disassembling pin shaft, reduce labor intensity, and further improve disassembly efficiency. Therefore, the disassembly efficiency of the hydraulic support pin shaft can be effectively improved. The pin pulling device specifically includes pin puller and pin pulling driving device. The center of the pin puller is provided with a central cavity for clamping pin shaft, and the size of the central cavity can be various to adapt to pin shafts with different outer diameters on a hydraulic support.

[0005] However, the above pin pulling devices all need to clamp the end of the pin shaft during pin pulling, that is, the end of the pin shaft on the hydraulic support needs to protrude out of the connecting part, but the end of part or even all of the pin shafts on the existing hydraulic support is often embedded in the connecting part for the purpose of aesthetics, avoiding interference between parts, reducing erosion of the pin shaft by the working environment, etc., so that the above pin pulling devices cannot be used for pin pulling, and if the pin shaft is manually knocked to protrude the end of the pin shaft out, and then the above pin pulling scheme is used for pin pulling, the pin pulling efficiency will be greatly reduced. Technical content

[0006] The utility model provides a kind of pin pulling device for hydraulic support, to solve the technical problems of poor applicability or low pin pulling efficiency of the existing pin pulling device for hydraulic support.

[0007] According to one aspect of the utility model, a kind of pin pulling device for hydraulic support, including mounting seat, the pin pulling frame that can be slidably arranged on mounting seat, the vibration member for vibrating pin shaft to make pin shaft loose arranged on pin pulling frame, the pin pulling member for being threadedly connected with the thread hole of pin shaft and transmitting vibration force rotatably connected with vibration member and pin pulling frame respectively, the rotating mechanism for driving pin pulling member to rotate and the pin pulling drive member for driving pin pulling frame to slide relative to mounting seat with movable end being connected with pin pulling frame arranged on mounting seat.

[0008] As a further improvement of the above technical solution:

[0009] Further, the pin pulling member includes a pin pulling rod rotatably connected with the vibration member and the pin pulling frame, a threaded rod detachably connected with the pin pulling rod, and a driven gear fixed to the pin pulling rod for gear engagement with the rotating mechanism.

[0010] Further, the pin pulling member further includes a bearing seat arranged on the mounting seat and a thrust bearing arranged in the bearing seat and sleeved on the pin pulling rod.

[0011] Further, the rotating mechanism includes a sliding drive member slidably arranged on the mounting seat, a rotating drive member connected with the movable end of the sliding drive member, and a driving gear connected with the output end of the rotating drive member for gear engagement with the driven gear.

[0012] Further, the teeth of the driving gear and the driven gear are chamfered.

[0013] Further, the rotating mechanism includes a mounting plate connected with the pin pulling frame, a rotating drive member arranged on the mounting plate, and a driving gear connected with the output end of the rotating drive member and gear engaged with the driven gear.

[0014] Further, the vibration member comprises a vibration shell connected with the pin pulling frame and rotatably connected with the pin pulling member, and a vibration oil cylinder arranged in the vibration shell, the end of the pin pulling member extends into the vibration shell, and the vibration oil cylinder is used for reciprocating movement of the movable end to impact the pin pulling member.

[0015] Further, the pin pulling device further comprises a clamping mechanism, the clamping mechanism comprises a clamping driving member slidably arranged and arranged on the pin pulling frame, and a clamping member connected with the movable end of the clamping driving member and used for clamping the gravity center of the pin shaft.

[0016] Further, the pin pulling frame comprises a front guide plate rotatably connected with the pin pulling member and connected with the movable end of the pin pulling driving member, a rear guide plate connected with the vibration member, a first guide rod slidably arranged on the mounting seat and connected with the front guide plate and the rear guide plate respectively, and a second guide rod slidably arranged on the mounting seat and connected with the front guide plate and the rear guide plate respectively, the first guide rod and the second guide rod are arranged in a spaced manner, and the pin pulling member and the vibration member are arranged in a central manner on the pin pulling frame.

[0017] Further, the pin pulling driving member is provided with two, the two pin pulling driving members are arranged in a spaced manner on the mounting seat and the movable ends are connected with the front guide plate.

[0018] The utility model has the following beneficial effects:

[0019] The hydraulic support pin pulling device of the utility model, through the mounting seat, the pin pulling frame and the pin pulling driving member are reliably installed, through the pin pulling frame, the vibration member and the pin pulling member are reliably installed, when it is needed to disassemble and maintain the hydraulic support, the pin pulling frame is driven by the pin pulling driving member to slide relative to the mounting seat towards the direction close to the pin shaft, so that when the pin pulling member preliminarily extends into the threaded inner hole of the pin shaft, the rotating mechanism drives the pin pulling member to rotate, so that the pin pulling member is screwed with the threaded inner hole of the pin shaft, and gradually penetrates into the pin shaft under the action of the pin pulling driving member, after the pin pulling member moves to the position, the vibration member works to generate a vibration force, and the vibration force is transmitted through the pin pulling member to vibrate the pin shaft, so that the pin shaft is shaken loose, at this time, the pin pulling frame is driven by the pin pulling driving member to slide relative to the mounting seat towards the direction away from the pin shaft, so that the pin shaft can be pulled out from the hydraulic support through the pin pulling member, so that the maintenance of the disassembled hydraulic support can be carried out, the mounting seat, the pin pulling frame, the vibration member, the pin pulling member, the rotating mechanism and the pin pulling driving member are cooperated to pull out the pin shaft on the hydraulic support, compared with the prior art, the threaded inner hole of the pin shaft to be pulled out during the disassembly of the hydraulic support is fully utilized, all the pin shafts on the hydraulic support can be pulled out in turn, the applicability is good, the pin pulling does not need human assistance during the whole process, the pin pulling efficiency is high, the pin pulling process is simple, the practicality is strong, and it is suitable for wide promotion and application.

[0020] In addition to the above described objects, features and advantages, the present application has other objects, features and advantages. These and other objects, features and advantages of the present application will become apparent with reference to the following detailed description of the present application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the application. In the drawings:

[0022] Figure 1 is a perspective view of the pin pulling device for hydraulic support of the preferred embodiment of the present application;

[0023] Figure 2 is a structure schematic view of the first perspective of the pin pulling device for hydraulic support of the preferred embodiment of the present application;

[0024] Figure 3 is a structure schematic view of the second perspective of the pin pulling device for hydraulic support of the preferred embodiment of the present application;

[0025] Figure 4 is a structure schematic view of the connection of the pin pulling member and the vibrating member in the pin pulling device for hydraulic support of the preferred embodiment of the present application;

[0026] Figure 5 is a structure schematic view of the connection of the pin pulling member, the vibrating member and the rotating mechanism in the pin pulling device for hydraulic support of the preferred embodiment of the present application.

[0027] LEGEND

[0028] 100, mounting seat; 110, mounting part; 120, connecting part; 130, lubricating sleeve; 200, pin pulling frame; 210, front guide plate; 220, rear guide plate; 230, first guide rod; 240, second guide rod; 250, limiting sleeve; 300, vibrating member; 310, vibrating shell; 320, vibrating oil cylinder; 400, pin pulling member; 410, pin pulling rod; 420, threaded rod; 430, driven gear; 440, thrust bearing; 500, rotating mechanism; 510, sliding driving member; 520, driving motor; 530, speed reducer; 540, driving gear; 600, pin pulling driving member; 700, clamping mechanism; 710, clamping driving member; 720, clamping member. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, but the present application can be implemented in various different ways as defined and covered below.

[0030] As Figures 1-3As shown, the hydraulic support pin-pulling device of this embodiment includes a mounting base 100, a pin-pulling frame 200 slidably arranged on the mounting base 100, a vibrating element 300 arranged on the pin-pulling frame 200 for vibrating the pin shaft to loosen the pin shaft, a pin-pulling element 400 rotatably connected to the vibrating element 300 and the pin-pulling frame 200 respectively for threaded connection with the threaded inner hole of the pin shaft and for transmitting the vibration force, a rotating mechanism 500 for driving the pin-pulling element 400 to rotate, and a pin-pulling drive element 600 arranged on the mounting base 100 and whose movable end is connected to the pin-pulling frame 200 for driving the pin-pulling frame 200 to slide relative to the mounting base 100.

[0031] like Figures 1-3 As shown, specifically, the hydraulic support pin-pulling device of this utility model reliably mounts the pin-pulling frame 200 and the pin-pulling drive 600 via the mounting base 100. The vibrating element 300 and the pin-pulling component 400 are reliably mounted via the pin-pulling frame 200. When the hydraulic support needs to be disassembled for maintenance, the pin-pulling drive 600 drives the pin-pulling frame 200 to slide relative to the mounting base 100 towards the pin shaft. When the pin-pulling component 400 initially extends into the threaded inner hole of the pin shaft, the rotating mechanism 500 drives the pin-pulling component 400 to rotate, so that the pin-pulling component 400 is threadedly connected to the threaded inner hole of the pin shaft. Under the action of the pin-pulling drive 600, it gradually penetrates deeper into the pin shaft. After the pin-pulling component 400 reaches its position, the vibrating element 300 operates with a vibration force, which is transmitted through the pin-pulling component 400. The pin is loosened by vibration. Then, the pin-pulling drive 600 drives the pin-pulling frame 200 to slide away from the mounting base 100 relative to the pin, and the pin-pulling component 400 pulls the pin out of the hydraulic support, allowing for maintenance after disassembly. This solution uses the mounting base 100, pin-pulling frame 200, vibrating component 300, pin-pulling component 400, rotating mechanism 500, and pin-pulling drive 600 to work together to pull out the pins on the hydraulic support. Compared with existing technologies, this solution makes full use of the fact that the pins to be pulled out when disassembling the hydraulic support all have threaded inner holes. All the pins on the hydraulic support can be pulled out sequentially. It has good applicability, and no manual assistance is required throughout the pin-pulling process. It has high efficiency, simple process, and strong practicality, making it suitable for widespread promotion and application.

[0032] It should be understood that human assistance refers to maintenance personnel participating in construction at close range using disassembly and assembly tools (such as hammers).

[0033] Optionally, the pin pulling device further comprises a visual positioning sensor, a depth sensor, a torque sensor and a controller, the relative position of the pin pulling piece 400 and the pin shaft is detected by the visual positioning sensor and fed back to the controller, the depth of the pin pulling piece 400 into the pin shaft is detected by the depth sensor and fed back, the torque of the pin pulling piece 400 when connecting the pin shaft is detected by the torque sensor and fed back, and the controller cooperatively controls the pin pulling process to determine whether the pin pulling piece 400 reaches the pin pulling position according to the relative position of the pin pulling piece 400 and the pin shaft, and then controls the pin pulling driving piece 600 and the rotating mechanism 500 to work cooperatively to determine whether the pin pulling piece 400 moves into place according to the depth of the pin pulling piece 400 into the pin shaft and the torque of the pin pulling piece 400 when connecting the pin shaft, and then controls the pin pulling driving piece 600, the rotating mechanism 500 and the vibrating piece 300 to work cooperatively, so as to realize automatic and intelligent pin pulling and improve the pin pulling efficiency.

[0034] It should be understood that in the pin pulling process, if the pin shaft is not loose or the pin pulling is blocked, the vibrating piece 300 can work to loosen the pin shaft by transmitting the vibration force through the pin pulling piece 400, thereby improving the pin pulling effect and indirectly improving the pin pulling efficiency.

[0035] It should be understood that, compared with the existing manual rotating and twisting screw rod 420 and then pulling the pin, the embodiment realizes the integrated planning of rotating and twisting the pin shaft and vibrating to loosen the pin shaft, improves the pin pulling efficiency and simplifies the complexity of the pin pulling process.

[0036] As shown in Figure 4 and Figure 5 , in the embodiment, the pin pulling piece 400 comprises a pin pulling rod 410 rotatably connected with the vibrating piece 300 and the pin pulling frame 200, a screw rod 420 detachably connected with the pin pulling rod 410, and a driven gear 430 fixed on the pin pulling rod 410 for engaging with the gear of the rotating mechanism 500.

[0037] Optionally, the driven gear 430 is fixed on the pin pulling rod 410 by a flat key connection.

[0038] As shown in Figure 4 and Figure 5 , specifically, the rotating mechanism 500 drives the driven gear 430 to rotate, thereby driving the pin pulling rod 410 to rotate, and then driving the screw rod 420 to rotate, so that the screw rod 420 is screw-connected with the threaded inner hole of the pin shaft for pin pulling operation; different specifications of the screw rod 420 are connected with the pin pulling rod 410 to be screw-connected with the threaded inner hole of the pin shaft of different models, thereby improving the applicability of the pin pulling device.

[0039] As shown in Figure 1As shown, in this embodiment, the pin pulling member 400 further comprises a bearing seat arranged on the mounting base 100 and a thrust bearing 440 arranged in the bearing seat and sleeved on the pin pulling rod 410.

[0040] As shown, Figure 1 Specifically, the pin pulling rod 410 is reliably installed through the bearing seat and the thrust bearing 440 to improve the structural stability of the pin pulling rod 410 after assembly, so that the pin pulling rod 410 can bear greater load, thereby avoiding the pin pulling rod 410 from being broken due to excessive force during the pin pulling process, ensuring the service life of the pin pulling rod 410, and the thrust bearing 440 can bear axial load to reliably support the pin pulling rod 410 when the pin pulling rod 410 transmits the vibration action force.

[0041] As shown, Figure 1 and Figure 5 As shown, in this embodiment, the rotating mechanism 500 comprises a sliding driving member 510 slidably arranged on the mounting base 100, a rotating driving member connected to the movable end of the sliding driving member 510, and a driving gear 540 connected to the output end of the rotating driving member and used for gear meshing with the driven gear 430.

[0042] As shown, Figure 1 and Figure 5 Specifically, the sliding driving member 510 drives the rotating driving member to move relative to the mounting base 100 to drive the driving gear 540 on the rotating driving member to mesh with the driven gear 430, and then the rotating driving member drives the driving gear 540 to rotate to sequentially drive the driven gear 430, the pin pulling rod 410 and the threaded rod 420 to rotate to be threadedly connected with the threaded inner hole of the pin shaft; when the pin pulling driving member 600 drives the pin pulling frame 200 and the pin pulling rod 410 on the pin pulling frame 200 to slide relative to the mounting base 100, the sliding driving member 510 synchronously drives the rotating driving member to move relative to the mounting base 100, so that the relative position between the rotating driving member and the pin pulling rod 410 remains unchanged; in addition, since only the driving gear 540 and the driven gear 430 are in gear meshing in the rotating mechanism 500, the influence of the vibration action force on the rotating mechanism 500 is minimized, ensuring the stable and reliable movement of the rotating mechanism 500.

[0043] As shown, Figure 1 Optionally, the rotating driving member comprises a driving motor 520 and a speed reducer 530 connected to the output end of the driving motor 520, and the driving gear 540 is arranged on the output shaft of the speed reducer 530, so that the driving motor 520 outputs power into the speed reducer 530, and then the speed reducer 530 adjusts the rotating speed and torque before transmitting the power to the driving gear 540, to ensure that the driving gear 540 has enough torque to drive the driven gear 430, the pin pulling rod 410 and the threaded rod 420 to rotate.

[0044] Optionally, the sliding driving member 510 is one of an oil cylinder, an air cylinder or an electric push rod. Preferably, the sliding driving member 510 is a sliding table air cylinder, which has high precision guiding and motion stability, ensures parallel movement of the rotating driving member and the pin pulling rod 410, avoids motion deviation and interference between them, and has high rigid load capacity to reliably support the rotating driving member. Optionally, the sliding driving member 510 is threadedly connected with the mounting base 100.

[0045] Optionally, in another embodiment, the rotating mechanism 500 includes a sliding driving member 510 movably arranged at the movable end and on the mounting base 100, a rotating driving member connected with the movable end of the sliding driving member 510, and a rack connected with the output end of the rotating driving member and in gear engagement with the driven gear 430. The rack is driven by the sliding driving member 510 to move the rotating driving member relative to the mounting base 100, to drive the rack on the rotating driving member to engage with the driven gear 430, and then the rack is driven by the rotating driving member to move radially relative to the pin pulling rod 410, to drive the driven gear 430, the pin pulling rod 410 and the pin shaft to rotate. At this time, the rotating driving member is one of an oil cylinder, an air cylinder or an electric push rod.

[0046] In this embodiment, the tooth profiles of the driving gear 540 and the driven gear 430 are both chamfered. Specifically, when the sliding driving member 510 drives the driving gear 540 to translate relative to the driven gear 430, and then the driving gear 540 and the driven gear 430 are engaged, the tooth profiles of the driving gear 540 and the driven gear 430 are both chamfered to reduce interference between them.

[0047] Optionally, in another embodiment, the rotating mechanism 500 includes a mounting plate connected with the pin pulling frame 200, a rotating driving member arranged on the mounting plate, and a driving gear 540 connected with the output end of the rotating driving member and in gear engagement with the driven gear 430. Specifically, the rotating driving member is operated to drive the driven gear 430, the pin pulling rod 410 and the threaded rod 420 to synchronously rotate through the driving gear 540. When the pin pulling driving member 600 drives the pin pulling frame 200 to slide relative to the mounting base 100, the rotating mechanism 500 and the pin pulling rod 410 synchronously move, which reduces the control precision requirement of the cooperation between them and simplifies the structure of the rotating mechanism 500.

[0048] Optionally, in another embodiment, the rotating mechanism 500 includes a mounting plate connected with the pin pulling frame 200, a rotating driving member arranged on the mounting plate, and a rack connected with the output end of the rotating driving member and in gear engagement with the driven gear 430. The rack is driven by the rotating driving member to drive the driven gear 430, the pin pulling rod 410 and the threaded rod 420 to synchronously rotate. At this time, the rotating driving member is one of an oil cylinder, an air cylinder or an electric push rod.

[0049] As Figure 4 shown in the drawings, in the embodiment, the vibrating member 300 comprises a vibrating shell 310 connected with the pin pulling frame 200 and rotatably connected with the pin pulling member 400, and a vibrating oil cylinder 320 arranged in the vibrating shell 310, the end of the pin pulling member 400 extends into the vibrating shell 310, and the vibrating oil cylinder 320 is used for reciprocating movement of the movable end to impact the pin pulling member 400.

[0050] As Figure 4 shown, specifically, the vibrating oil cylinder 320 works to apply a vibrating force to the pin pulling rod 410 of the pin pulling member 400, and then the pin pulling rod 410 and the threaded rod 420 transmit the vibrating force to the pin shaft, so as to shake the pin shaft loose.

[0051] As Figure 4 shown, in the embodiment, the end of the pin pulling rod 410 outwardly protrudes a limiting boss, which cooperates with the vibrating shell 310 to axially limit the pin pulling rod 410.

[0052] Optionally, the vibrating oil cylinder 320 is a double-acting hydraulic cylinder, which realizes bidirectional movement of the piston rod through the alternating action of hydraulic oil on both sides of the piston, so as to reciprocally impact the pin pulling rod 410 to apply a vibrating force to the pin pulling rod 410.

[0053] As Figure 1 and Figure 3 shown, in the embodiment, the pin pulling device further comprises a clamping mechanism 700, which comprises a clamping driving member 710 slidably arranged at the movable end and arranged on the pin pulling frame 200, and a clamping member 720 connected with the movable end of the clamping driving member 710 and used for clamping the center of gravity of the pin shaft.

[0054] As Figure 1 and Figure 3 shown, specifically, when the pin shaft is pulled out to a certain length, the clamping mechanism 700 drives the clamping to move to the position of the center of gravity of the pin shaft through the clamping driving member 710, and then clamps the center of gravity of the pin shaft through the clamping member 720 to assist in supporting the pin shaft, so as to prevent the pin shaft from being pulled out too long and unbalanced, thereby affecting the pin pulling effect.

[0055] Optionally, the clamping driving member 710 is one of an oil cylinder, an air cylinder or an electric push rod. Preferably, the clamping driving member 710 is a slide table air cylinder, which has high-precision guidance and stable movement, so as to ensure that the clamping member 720 moves in parallel relative to the pin pulling rod 410, and avoid movement deviation of the clamping member 720 to cause the clamping member 720 to fail to accurately clamp the pin shaft.

[0056] Optionally, the clamping member 720 is one of a gripper air cylinder or an electric gripper.

[0057] As Figure 1As shown, in the embodiment, the pin pulling frame 200 comprises a front guide plate 210 rotatably connected with the pin pulling member 400 and connected with the movable end of the pin pulling driving member 600, a rear guide plate 220 connected with the vibrating member 300, a first guide rod 230 slidably arranged on the mounting base 100 and connected with the front guide plate 210 and the rear guide plate 220 respectively, and a second guide rod 240 slidably arranged on the mounting base 100 and connected with the front guide plate 210 and the rear guide plate 220 respectively, the first guide rod 230 and the second guide rod 240 are arranged in a spaced manner, and the pin pulling member 400 and the vibrating member 300 are arranged in a central manner on the mounting base 100. Specifically, the pin pulling driving member 600 and the pin pulling member 400 are connected as a whole through the front guide plate 210, the vibrating member 300 is connected through the rear guide plate 220, and the front guide plate 210 and the rear guide plate 220 are connected as a whole through the first guide rod 230 and the second guide rod 240, so that the pin pulling frame 200 is stable and reliable in structure, and the first guide rod 230 and the second guide rod 240 are arranged in a spaced manner, and the pin pulling member 400 and the vibrating member 300 are arranged in a central manner on the pin pulling frame 200, so as to ensure that the pin pulling frame 200 is balanced in force and has strong bearing capacity during the pin pulling process.

[0058] Optionally, a limiting hole is formed in the front guide plate 210, and a limiting sleeve 250 for axially limiting the pin pulling rod 410 is arranged in the limiting hole.

[0059] In the embodiment, two pin pulling driving members 600 are arranged in a spaced manner on the mounting base 100 and connected with the front guide plate 210 at the movable ends. Specifically, the two pin pulling driving members 600 work synchronously to ensure the stability of the movement of the pin pulling frame 200.

[0060] Optionally, the pin pulling driving member 600 is one of an oil cylinder, an air cylinder or an electric push rod. Preferably, the pin pulling driving member 600 is a drawing oil cylinder, which is suitable for the tonnage of the pin shaft pulling out and has a stroke matched with the length of the pin shaft.

[0061] As shown in FIG. 1, the pin pulling frame 200 comprises a mounting base 100, a pin pulling driving member 600, a pin pulling member 400, a vibrating member 300, a front guide plate 210, a rear guide plate 220, a first guide rod 230 and a second guide rod 240. Figure 2As shown, in the embodiment, the mounting base 100 comprises a mounting shell, a mounting portion 110 arranged on the upper end surface of the mounting shell for mounting the pin driving member 600, and a connecting portion 120 arranged on the lower end surface of the mounting shell. Specifically, the rotating mechanism 500 is accommodated by the mounting shell, the pin driving member 600 is reliably mounted by the mounting portion 110, and the mounting base 100 is fixed by the connecting portion 120. Alternatively, the mounting shell is arranged in the shape of a cuboid, mounting holes for the first guide rod 230, the second guide rod 240, the pin rod 410 and the vibration shell 310 to pass through are formed on the mounting shell, and lubricating sleeves 130 for slidingly cooperating with the first guide rod 230, the second guide rod 240, the pin rod 410 or the vibration shell 310 are arranged in the mounting holes, so as to improve the smoothness of the synchronous sliding of the first guide rod 230, the second guide rod 240, the pin rod 410 and the vibration shell 310 when the pin driving member 600 drives the pin frame 200 to slide relative to the mounting base 100.

[0062] As shown, Figure 3 In the embodiment, the connecting portion 120 is arranged in an array on the lower end surface of the mounting shell, so as to improve the reliability of the fixed mounting base 100.

[0063] As shown, Figure 2 In the embodiment, the mounting portion 110 and the pin driving member 600 are arranged one by one.

[0064] As shown, Figures 1-5 The working process of the preferred embodiment of the utility model is as follows:

[0065] When the pin pulling device moves to the pin pulling station, the threaded rod 420 is coaxially arranged with the threaded inner hole of the pin shaft and is kept within a certain axial distance, the pin pulling drive 600 works to drive the pin pulling frame 200, the pin pulling piece 400 and the vibration piece 300 to synchronously slide relative to the mounting base 100, so that the threaded rod 420 preliminarily extends into the threaded inner hole of the pin shaft; the rotary drive works to make the driving gear 540 engage with the driven gear 430, the driving motor 520 works to drive the driving gear 540 to rotate through the speed reducer, thereby driving the driven gear 430, the pin pulling rod 410 and the threaded rod 420 to rotate, and the pin pulling drive 600 works synchronously to make the threaded rod 420 gradually penetrate into the threaded inner hole of the pin shaft, after the depth and torque feedback moves to the position, the driving motor 520 stops working; the vibration oil cylinder 320 works to apply a vibration force to the pin pulling rod 410, thereby transmitting the vibration force to the pin shaft through the pin pulling rod 410 and the threaded rod 420 to shake the pin shaft; the pin pulling drive 600 drives the pin pulling frame 200, the pin pulling piece 400 and the vibration piece 300 to synchronously slide relative to the mounting base 100 to preliminarily pull the pin; after the pin shaft is pulled out for a certain length, the clamping drive 710 works to make the clamping piece 720 move to the center of gravity of the pin shaft, thereby clamping the center of gravity of the pin shaft; the pin pulling drive 600 drives the pin pulling frame 200, the pin pulling piece 400 and the vibration piece 300 to synchronously slide relative to the mounting base 100 to pull out the pin shaft; wherein the pin pulling drive 600 is a pulling oil cylinder, the rotary drive is a sliding table air cylinder, and the clamping drive 710 is a sliding table air cylinder.

[0066] The preferred embodiments of the utility model are described above only, and are not used for limiting the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement, etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pin pulling device for a hydraulic support, characterized in that, The pin pulling device comprises a mounting base (100), a pin pulling frame (200) slidably arranged on the mounting base (100), a vibrating member (300) arranged on the pin pulling frame (200) and used for vibrating a pin shaft to loosen the pin shaft, a pin pulling member (400) rotatably connected with the vibrating member (300) and the pin pulling frame (200) respectively and used for threadedly connecting with a threaded hole of the pin shaft and transmitting a vibrating force, a rotating mechanism (500) used for rotating the pin pulling member (400), and a pin pulling driving member (600) arranged on the mounting base (100) and having a movable end connected with the pin pulling frame (200) and used for sliding the pin pulling frame (200) relative to the mounting base (100).

2. The pin pulling device for hydraulic supports according to claim 1, characterized in that The pin pulling member (400) comprises a pin pulling rod (410) rotatably connected with the vibrating member (300) and the pin pulling frame (200) respectively, a threaded rod (420) detachably connected with the pin pulling rod (410), and a driven gear (430) fixed on the pin pulling rod (410) and used for being engaged with a gear of the rotating mechanism (500).

3. The pin pulling device for hydraulic supports according to claim 2, characterized in that The pin pulling member (400) further comprises a bearing seat arranged on the mounting base (100) and a thrust bearing (440) arranged in the bearing seat and sleeved on the pin pulling rod (410).

4. The pin pulling device for hydraulic supports according to claim 2, characterized in that The rotating mechanism (500) comprises a sliding driving member (510) slidably arranged on the mounting base (100), a rotating driving member connected with the movable end of the sliding driving member (510), and a driving gear (540) connected with an output end of the rotating driving member and used for being engaged with the driven gear (430).

5. The pin pulling device for hydraulic supports according to claim 4, characterized in that The driving gear (540) and the driven gear (430) are both chamfered.

6. The pin pulling device for hydraulic supports according to claim 2, characterized in that The rotating mechanism (500) comprises a mounting plate connected with the pin pulling frame (200), a rotating driving member arranged on the mounting plate, and a driving gear (540) connected with an output end of the rotating driving member and engaged with the driven gear (430).

7. The pin pulling device for hydraulic supports according to any of claims 1-6, characterized in that, The vibrating member (300) comprises a vibrating shell (310) connected with the pin pulling frame (200) and rotatably connected with the pin pulling member (400), and a vibrating oil cylinder (320) arranged in the vibrating shell (310), an end of the pin pulling member (400) extending into the vibrating shell (310), and the vibrating oil cylinder (320) used for reciprocating the movable end to impact the pin pulling member (400).

8. The pin pulling device for hydraulic supports according to any of claims 1-6, characterized in that, The pin pulling device further comprises a clamping mechanism (700) comprising a clamping driving member (710) slidably arranged on the pin pulling frame (200), and a clamping member (720) connected with the movable end of the clamping driving member (710) and used for clamping a gravity center of the pin shaft.

9. The pin pulling device for hydraulic supports according to any of claims 1-6, characterized in that, The pin pulling frame (200) comprises a front guide plate (210) rotatably connected with a pin pulling piece (400) and connected with a movable end of a pin pulling driving piece (600), a rear guide plate (220) connected with a vibrating piece (300), a first guide rod (230) slidably arranged on the mounting seat (100) and connected with the front guide plate (210) and the rear guide plate (220) respectively, and a second guide rod (240) slidably arranged on the mounting seat (100) and connected with the front guide plate (210) and the rear guide plate (220) respectively, the first guide rod (230) and the second guide rod (240) are arranged in intervals, and the pin pulling piece (400) and the vibrating piece (300) are arranged in the middle of the pin pulling frame (200).

10. The pin pulling device for hydraulic supports according to any of claims 1-6, characterized in that, The pin pulling driving piece (600) is provided with two, the two pin pulling driving pieces (600) are arranged in intervals on the mounting seat (100) and the movable ends are connected with the front guide plate (210).

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