Supporting shoe mechanism and underground operation trolley

Abstract

The utility model discloses a gripper shoe mechanism and a downhole operation trolley, the gripper shoe mechanism comprises at least one gripper shoe unit, the gripper shoe unit comprises a plurality of gripper shoe frames and a plurality of movable gripper shoes, one ends of the plurality of gripper shoe frames are connected, the other ends of the plurality of gripper shoe frames extend towards a plurality of different directions by taking the intersection point of the gripper shoe frames as the center, and the movable gripper shoes are arranged on the gripper shoe frames. And each movable supporting shoe frame is movably arranged in the corresponding supporting shoe frame in a sleeving manner. According to the gripper shoe mechanism, the gripper shoe frame is arranged in different directions, the movable gripper shoes arranged in the gripper shoe frame can be stretched or shortened, the length change of the gripper shoe frame can meet the requirements for retracting and supporting of a gripper shoe system, the movable gripper shoes do telescopic motion in multiple directions, and therefore the gripper shoe mechanism can be tightly supported on the wall of an inclined shaft in multiple directions, and the service life of the inclined shaft is prolonged. Therefore, the supporting shoe mechanism can be tightly attached to the well wall from multiple directions, and the supporting force of the supporting shoe mechanism is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inclined shaft construction, in particular to a support shoe mechanism and an underground operation trolley. Background Art

[0002] Inclined shaft trolleys are generally pulled by steel wire ropes, and the trolleys are kept on the track by the force of gravity. When performing operations such as slagging, shotcreting, and rock drilling, the entire machine will shake due to changes in the center of gravity and inertia, affecting the operating posture and posing a safety hazard. Therefore, support shoes are required to support the well wall.

[0003] In the related technology, the support shoe is mainly composed of a support frame and a cylinder. The cylinder drives the frame to extend and retract to change the length to achieve the purpose of supporting the well wall. When the trolley needs to move, the support shoe system is required to be able to retract. When the trolley is operating, the support shoe system is required to be able to support the trolley on the track. However, since the inner wall of the inclined well is not a regular circular cross-section, all the supporting surfaces of the support shoe cannot be completely attached to the inner wall of the inclined well, resulting in the inability to properly support the well wall and insufficient supporting force.

[0004] In view of this, it is necessary to provide a new gripper mechanism and an underground operation trolley to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the embodiments of the present invention hope to provide a support shoe mechanism and an underground operation trolley that can completely adhere to the well wall to increase its supporting force.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] A shoe gripper mechanism comprises at least one shoe gripper unit, wherein the shoe gripper unit comprises a plurality of shoe gripper frames and a plurality of movable shoe grippers, wherein one end of the plurality of shoe gripper frames are connected and the other end extends in a plurality of different directions with the intersection of the shoe gripper frames as the center, and each movable shoe gripper frame is movably mounted in the corresponding shoe gripper frame.

[0008] Preferably, the plurality of shoe grippers are respectively two side shoe grippers in opposite directions and a front shoe gripper arranged perpendicular to the side shoe grippers.

[0009] Preferably, a support rod is fixedly connected between the side shoe support frame and the front shoe support frame.

[0010] Preferably, there are two gripper shoe units, and the two gripper shoe units are connected by a connecting frame.

[0011] Preferably, the movable shoe includes a movable shoe, a telescopic rod, a connecting head and a shoe seat, the movable shoe is axially sleeved in the shoe frame, the telescopic rod is axially sleeved in the movable shoe, and one end of the telescopic rod is fixedly connected to the shoe frame through a positioning column, and the other end is fixedly connected to the connecting head, the outer periphery of the connecting head is connected to the movable shoe, and the end of the connecting head is connected to the shoe seat by a ball joint.

[0012] Preferably, the positioning column is a pin.

[0013] Preferably, the telescopic rod is a hydraulic cylinder.

[0014] Preferably, a concave-convex anti-slip surface is formed on one end of the shoe seat away from the connecting head.

[0015] Preferably, the cross section of the shoe holder is square.

[0016] Preferably, a connecting flange is fixedly connected to the outside of the shoe support frame.

[0017] A downhole operation trolley comprises an upper gripper mechanism and a trolley frame, wherein the gripper mechanism is mounted on the trolley frame.

[0018] The shoe support mechanism and downhole operation trolley provided by the embodiment of the present invention are configured with shoe support frames in different directions, and the movable shoe support frames arranged in the shoe support frames can be extended or shortened. The change in length can not only meet the requirements of retraction and support of the shoe support system, but also the movable shoe support can be telescopically moved in multiple directions, so that it can be tightened to the inclined well wall from multiple directions, so that it can be firmly attached to the well wall from multiple directions, thereby greatly improving the supporting force of the shoe support mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram of the working state of the gripper mechanism provided by the utility model in an inclined shaft;

[0020] Figure 2 for Figure 1 The structural diagram of the shoe mechanism shown;

[0021] Figure 3 for Figure 1 The assembly drawing of the gripper mechanism shown;

[0022] Figure 4 for Figure 3 The assembly diagram of the shoe mechanism shown is a partial enlarged view of the structure. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2 . The shoe mechanism 30 is mounted on the trolley frame 10 and is used to tighten the wall of the inclined shaft. The shoe mechanism 30 includes at least one shoe unit 31, and the shoe unit 31 includes a plurality of shoe frames 33 and a plurality of movable shoes 35. One end of the plurality of shoe frames 33 is connected, and the other end extends in a plurality of different directions with the intersection of the shoe frames 33 as the center. Each of the movable shoes 35 can be telescopically mounted back and forth in the corresponding shoe frame 33. Therefore, the shoe frames 33 are arranged in different directions, and the movable shoes 35 arranged in the shoe frames 33 can be extended or shortened. The change in length can not only meet the requirements of the shoe system for retraction and support, but also the movable shoes 35 can perform telescopic movement in multiple directions, so that they can be tightened to the wall of the inclined shaft from multiple directions. In this way, they can be firmly attached to the wall from multiple directions, greatly improving the supporting force of the shoe mechanism 30, thereby ensuring the stability of the trolley 10 in the underground position.

[0025] Preferably, the plurality of gripper frames 33 include two side gripper frames 37 extending in opposite directions and a front gripper frame 39 disposed perpendicular to the side gripper frames 37. Specifically, in this embodiment, there are three gripper frames 33, which support the manhole wall from three directions, namely, left and right and upward, forming multiple fulcrums to firmly abut the movable gripper 35 against the manhole wall. Of course, in other embodiments, the number of gripper frames 33 may be increased, and may be more than three, such as four or five, to provide support from four, five, or more directions.

[0026] As a preferred implementation manner of this embodiment, a support rod 40 is further fixedly connected between the side support shoe frame 37 and the front support shoe frame 39. The support rod 40 is arranged near the intersection of the side support shoe frame 37 and the front support shoe frame 39 to strengthen the structural stability between the side support shoe frame 37 and the front support shoe frame 39.

[0027] Specifically, in this embodiment, there are two gripper units 31, which are connected by a connecting frame 41 and arranged in parallel. The two gripper units 31 can also be connected together to form a whole (module), and multiple gripper units can be provided according to different needs to improve its applicability.

[0028] See also Figure 3 and Figure 4 Specifically, the movable gripper 35 includes a movable gripper 351, a telescopic rod 353, a connector 357, and a gripper seat 359. The movable gripper 351 is axially sleeved within the gripper frame 33, and the telescopic rod 353 is axially sleeved within the movable gripper 351. One end of the telescopic rod 353 is fixedly connected to the gripper frame 33 via a positioning column 360, and the other end is fixedly connected to the connector 357. The outer periphery of the connector 357 is fixedly connected to the movable gripper 351, and the end of the connector 357 is connected to the gripper seat 359 by a ball joint. The telescopic rod 353 is driven by a driving mechanism to perform telescopic motion, driving the connector 357 to move, and the connector 357 in turn drives the movable gripper 351 connected thereto to move. In this way, the movable gripper 351 can reciprocate and perform telescopic motion within the gripper frame 33. It is noteworthy that the connecting head 357 and the gripper shoe 359 are connected by a ball joint, allowing the connection between the connecting head 357 and the gripper shoe 359 to form a variety of angles. This allows the gripper shoe 359 to automatically adapt to the angle of the wellbore wall, ensuring that the gripper shoe 359 always maintains close contact with the wellbore wall, greatly enhancing the supporting force. Specifically, in this embodiment, the retractable rod 353 is a hydraulic cylinder. The piston rod of the hydraulic cylinder is connected to the connecting head 357, and the piston rod drives the connecting head 357 and the movable gripper shoe 351 connected to the connecting head 357 to reciprocate.

[0029] Specifically, in this embodiment, the positioning column 360 is a pin that passes through the shoe support frame 33 and the cylinder barrel of the hydraulic cylinder to fix the cylinder barrel, so that the piston rod can move back and forth in the cylinder barrel.

[0030] More preferably, in order to increase the friction between the shoe seat 359 and the well wall, the shoe seat 359 is provided with a concave-convex anti-slip surface 3591 at one end away from the connector 357 , and the concave-convex anti-slip surface 3591 is made of elastic material, such as rubber.

[0031] In detail, the cross section of the shoe support frame 33 is square. Preferably, the shoe support frame 33 is made of square steel, which has a reliable structure.

[0032] In another embodiment, the gripper mechanism 30 further includes a flange 36, and the gripper frame 33 is externally fixedly connected with a plurality of flanges 36. The gripper mechanism 30 is connected to the trolley 10 frame via the flange 36, and the flange 36 is detachable, making assembly and disassembly more convenient.

[0033] The present invention further provides a downhole operation trolley, comprising the gripper mechanism 30 and a trolley frame 10, wherein the gripper mechanism 30 is mounted on the trolley frame 10. A track is installed in the well, and the trolley frame is mounted on the track and moves along the track to drive the trolley frame to move, so that the gripper mechanism 30 can operate at different positions in the well, effectively improving the operation flexibility.

[0034] The shoe support mechanism 30 and the downhole operation trolley provided by the embodiment of the present invention are provided with shoe support frames 33 in different directions, and the movable shoe support 35 provided in the shoe support frame 33 can be extended or shortened. The change in its length can not only meet the requirements of retraction and support of the shoe support system, but also the movable shoe support 35 can perform telescopic movement in multiple directions, so that it can be tightened to the inclined well wall from multiple directions, so that it can be firmly attached to the well wall from multiple directions, thereby greatly improving the supporting force of the shoe support mechanism 30.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A gripper mechanism, characterized in that: The invention comprises at least one shoe gripper unit, wherein the shoe gripper unit comprises a plurality of shoe gripper frames and a plurality of movable shoe grippers. One end of the plurality of shoe gripper frames are connected, and the other end extends in a plurality of different directions with the intersection of the shoe gripper frames as the center. Each of the movable shoe gripper frames can be telescopically arranged back and forth in the corresponding shoe gripper frame.

2. The gripper mechanism according to claim 1, characterized in that: The plurality of shoe grippers are respectively two side shoe grippers in opposite directions and a front shoe gripper arranged perpendicular to the side shoe grippers.

3. The gripper mechanism according to claim 2, characterized in that: A support rod is fixedly connected between the side shoe support frame and the front shoe support frame.

4. The gripper mechanism according to claim 1, characterized in that: There are two gripper shoe units, and the two gripper shoe units are connected via a connecting frame.

5. The gripper mechanism according to claim 1, characterized in that: The movable gripper includes a movable gripper, a telescopic rod, a connecting head and a gripper seat. The movable gripper is axially sleeved in the gripper frame. The telescopic rod is axially sleeved in the movable gripper, and one end of the telescopic rod is fixedly connected to the gripper frame through a positioning column, and the other end is fixedly connected to the connecting head. The outer periphery of the connecting head is connected to the movable gripper, and the end of the connecting head is connected to the gripper seat with a ball joint.

6. The gripper mechanism according to claim 5, characterized in that: The positioning column is a pin.

7. The gripper mechanism according to claim 5, characterized in that: The telescopic rod is a hydraulic cylinder.

8. The gripper mechanism according to claim 5, characterized in that: An end of the shoe seat away from the connector is formed with a concave-convex anti-slip surface.

9. The gripper mechanism according to any one of claims 1 to 8, characterized in that: A connecting flange is fixedly connected to the outside of the shoe support frame.

10. An underground operation trolley, comprising the gripper mechanism according to any one of claims 1 to 9, characterized in that: It also includes a trolley frame, and the shoe mechanism is installed on the trolley frame.

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