Pneumatic slip with safety structure

Abstract

The utility model discloses a pneumatic slip with a safety structure, which relates to the field of drilling platform fixtures, and comprises two main bodies, the two main bodies are both of a semicircular structure, an upper cover is arranged at the top end of each main body, a plurality of movable slips are arranged in the main bodies, and the movable slips are arranged on the upper cover. The multiple movable slips are arranged in a surrounding mode. According to the drilling rod clamping device, the two main bodies are arranged, the movable slips are arranged in the two main bodies, the balance beam is arranged at the top ends of the movable slips, and the air cylinders are arranged at the four corners of the balance beam, so that when a drilling rod is clamped, the air cylinders can drive the movable slips to move up and down through the balance beam; the movable slips are guided by the inclined face of the inner wall of the main body to clamp and fix the drill rod, the movable slips, the balance beam and the air cylinder are all integrally installed in the main body, the space occupation of the device is reduced while the clamping stability of the drill rod is guaranteed, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of drilling platform clamp, in particular to a pneumatic slip with safety structure. BACKGROUND

[0002] In the existing oil and gas drilling operation, one is to adopt manual slip to hold drill pipe and other pipe columns, due to frequent operation, personal labor intensity is big, and the efficiency is lower, two is to adopt double elevator operation, due to the operation personnel need to leg, pull and change double elevator, labor intensity is big, and the working efficiency is low, and the safety is poor, three is that a few well teams adopt imported power slip, and the price is expensive, and installation, maintenance are complex, and workers are not easy to master.

[0003] The utility model discloses a pneumatic slip of CN204941386U, including the disc core body of carousel and the slip body in the center conical hole of carousel disc core body, the bottom plate is adsorbed on carousel disc core body through magnetic attraction device, and the gear box is fixedly connected on the bottom plate, and one end of the lifting arm is hinged on the slip body, and the other end of the lifting arm is hinged on the gear box through the rotating shaft, and the rotating shaft is fixedly connected with the toothed sheet, and the gear box is also provided with the rack meshed with toothed sheet, and one end of the rack is fixedly connected with the pneumatic cylinder, the utility model has the advantages of cancelling the double elevator changing process, fundamentally avoiding the single elevator accident, avoiding the human drilling pipe breakage or bending phenomenon and the harm to personnel, reducing the volume, and the structure is reasonable, and the operation and maintenance are convenient, and the holding is reliable, and the problem that pneumatic slip and four square drive core cannot be connected is solved.

[0004] The above technical scheme has some problems in actual application, the pneumatic slip in the technical scheme is large in size, and the structure is redundant, so that it is inconvenient to install and place in actual application.

[0005] Therefore, it is necessary to provide a pneumatic slip with safety structure to solve the above problems. SUMMARY

[0006] The utility model discloses a pneumatic slip with safety structure, which solves the problems in the background art.

[0007] To achieve the above object, the utility model provides following technical scheme: A pneumatic slip with safety structure, including main part, The main part is provided with two, Two The main part All set up half round structure, The top of main part is provided with upper cover, The inner side wall of main part is provided with a plurality of inclined surfaces, And a plurality of inclined surfaces are set up as ladder structure, The inside of main part is provided with a plurality of movable slips, A plurality of The movable slip It is set up in a ring, And the outer side wall of a plurality of movable slips is provided with the fit face, The fit face is set up as inclined structure, And a plurality of fit faces are distributed as ladder structure, The top of movable slip is fixedly provided with extension seat, The middle part of extension seat is movably provided with slip connecting block through the pin shaft, The inside top of main part is provided with balance beam, The inner side wall of balance beam is provided with a plurality of grooves, A plurality of Slip connecting block It is movably arranged in the inside of a plurality of grooves through the pin shaft, The outer side wall of balance beam four corners is fixedly provided with connecting seat, The lower portion of connecting seat is provided with pneumatic cylinder.

[0008] Preferably, the output end of the pneumatic cylinder is fixedly provided with a connecting bolt, and the connecting bolt is penetratingly arranged in the inside of the connecting seat, the inner side wall of the main body is provided with a pneumatic cylinder mounting groove, and the pneumatic cylinder is arranged in the inside of the pneumatic cylinder mounting groove.

[0009] Preferably, the middle part of the pneumatic cylinder is fixedly provided with a fixing seat, and the fixing seat is fixedly arranged at the slot opening of the pneumatic cylinder mounting groove through bolts.

[0010] Preferably, the two ends of the main body are fixedly provided with a plurality of connecting sleeves, and the connecting sleeves at the two ends of the main body are staggered, the inside of the connecting sleeve is penetratingly provided with a locking stud, and the locking stud is fixedly arranged at the bottom end of the upper cover.

[0011] Preferably, the inner side wall of the movable slip is provided with an arc-shaped mounting groove, and a plurality of toothed plates are fixedly arranged in the inside of the mounting groove.

[0012] Preferably, the top middle part of the upper cover is fixedly provided with a handle.

[0013] The utility model discloses a technical effect and advantage:

[0014] 1, the utility model discloses a setting two main part, the inside of two main part is provided with a plurality of movable slips, the top of movable slip is provided with balance beam, the four corners of balance beam are provided with pneumatic cylinder, when clamping drill rod, the pneumatic cylinder can drive movable slip up and down motion through balance beam, and movable slip is guided to realize the clamping fixed of drill rod to the inclined surface of main body inner wall, and movable slip, balance beam and pneumatic cylinder are integrated and installed in the inside of main part, which reduces the space occupation of the device while guaranteeing the clamping stability of drill rod, so as to be convenient for the use of device.

[0015] 2, the utility model discloses a setting the inclined surface of ladder structure on the inner wall of main part, setting the lamination of ladder structure on the outside of movable slip, and the lamination cooperates with the inclined surface, can realize the guidance of gathering in the up-and-down movement of movable slip, to reach the locking effect of drill rod, through setting a plurality of toothed plates on the inside of movable slip, the design of toothed plate can improve the clamping stability between movable slip and drill rod, to reach the effect of improving the stability during the use of device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of the utility model.

[0017] Figure 2 It is whole structure cross section schematic diagram of the utility model.

[0018] Figure 3 It is movable slip structure schematic diagram of the utility model.

[0019] Figure 4 It is main body structure schematic diagram of the utility model.

[0020] Figure 5 It is balance beam structure schematic diagram of the utility model.

[0021] In the drawing: 1, main body, 2, upper cover, 3, inclined surface, 4, movable slip, 5, lamination, 6, extension seat, 7, slip connecting block, 8, balance beam, 9, recess, 10, connecting seat, 11, air cylinder, 12, connecting bolt, 13, air cylinder installation groove, 14, fixed seat, 15, connecting sleeve, 16, locking stud, 17, installation groove, 18, toothed plate, 19, handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0023] The utility model provides a Figures 1-5The utility model discloses a kind of pneumatic slips with safety structure, including main body 1, two, two main body 1 are arranged as semicircular structure, the top of main body 1 is provided with upper cover 2, the inner side wall of main body 1 is provided with multiple inclined surfaces 3, and multiple inclined surfaces 3 are arranged as ladder structure, the inside of main body 1 is provided with multiple movable slips 4, multiple movable slips 4 are arranged around, and the outer side wall of multiple movable slips 4 is provided with adhering surface 5, adhering surface 5 is arranged as inclined structure, and multiple adhering surface 5 is distributed as ladder structure, inclined surface 3 and adhering surface 5 cooperate, so that movable slip 4 can be gathered inwards in the process of moving downwards, and the design of ladder structure distribution makes movable slip 4 can quickly move away from drill pipe after moving upwards and separating from drill pipe, to facilitate the extraction of drill pipe;

[0024] The top of movable slip 4 is fixedly provided with extension seat 6, the middle part of extension seat 6 is movably provided with slip connecting block 7 through a pin shaft, the inside of main body 1 is provided with balance beam 8, a plurality of grooves 9 are formed in the inner side wall of balance beam 8, a plurality of slip connecting blocks 7 are movably arranged in the plurality of grooves 9 respectively, a connecting seat 10 is fixedly arranged at each corner of the outer side wall of balance beam 8, a gas cylinder 11 is arranged below the connecting seat 10, a connecting bolt 12 is fixedly arranged at the output end of the gas cylinder 11, and the connecting bolt 12 is arranged in the connecting seat 10, a gas cylinder mounting groove 13 is formed in the inner side wall of the main body 1, the gas cylinder 11 is arranged in the gas cylinder mounting groove 13, a fixing seat 14 is fixedly arranged at the middle part of the gas cylinder 11, and the fixing seat 14 is fixedly arranged at the slot of the gas cylinder mounting groove 13 by means of bolts, so that the position of the gas cylinder 11 can be locked;

[0025] A plurality of connecting sleeves 15 are fixedly arranged at both ends of the main body 1, the connecting sleeves 15 at both ends of the main body 1 are arranged in a staggered manner, a locking stud 16 is arranged in the connecting sleeve 15, and the locking stud 16 is fixedly arranged at the bottom end of the upper cover 2, so that the two main bodies 1 can be connected and fixed;

[0026] An arc-shaped mounting groove 17 is arranged in the inner side wall of the movable slip 4, a plurality of tooth plates 18 are fixedly arranged in the mounting groove 17, and the tooth plates 18 can tightly bite the drill pipe to ensure the stability of the drill pipe after clamping;

[0027] A handle 19 is fixedly arranged at the top middle part of the upper cover 2, so that the device can be easily lifted or lifted.

[0028] The working principle of the utility model:

[0029] In use, the main body 1 is placed above the drill rod, and the drill rod is inserted into the bottom end of the main body 1, at which time the plurality of movable slips 4 are located outside the drill rod, then the pneumatic cylinder 11 drives the balance beam 8 to move downward, the balance beam 8 drives the movable slips 4 to move downward through the slip connecting block 7, the movable slips 4 are guided inward by the inclined surface 3 during the downward movement, and the plurality of movable slips 4 cooperate to achieve clamping and fixing of the drill rod, in the process, the movable slips 4 clamp the drill rod through the inner side tooth plate 18 to ensure the stability of the clamped drill rod, when it is required to release the clamping of the drill rod, the cylinder 11 drives the balance beam 8 to move upward, so that the plurality of movable slips 4 move upward, at which time the movable slips 4 rotate around the top pin shaft under the action of gravity, at which time the bottom end of the movable slips 4 remains in contact with the inclined surface 3, and the plurality of movable slips 4 are dispersed outward to release the clamping of the drill rod.

[0030] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for the skilled in the art, it still can be modified, or the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A pneumatic slip with a safety structure, comprising a main body (1), characterized in that: Two main bodies (1) are provided, and both main bodies (1) are provided in a semicircular structure. An upper cover (2) is provided at the top of the main body (1). The inner side wall of the main body (1) is provided with a plurality of inclined surfaces (3), and the plurality of inclined surfaces (3) are provided in a stepped structure. A plurality of movable slips (4) are provided inside the main body (1), and the plurality of movable slips (4) are arranged in a surrounding manner. The outer side walls of the plurality of movable slips (4) are provided with a fitting surface (5), and the fitting surface (5) is provided in an inclined structure, and the plurality of fitting surfaces (5) are in a stepped structure. The movable cava (4) is fixedly provided with an extension seat (6), the middle part of the extension seat (6) is provided with a cava connecting block (7) through a pin shaft, the inner top of the main body (1) is provided with a balance beam (8), the inner side wall of the balance beam (8) is provided with a plurality of grooves (9), and the plurality of cava connecting blocks (7) are respectively provided in the interior of the plurality of grooves (9) through a pin shaft, and the four corners of the outer side wall of the balance beam (8) are fixedly provided with connecting seats (10), and a cylinder (11) is provided below the connecting seat (10).

2. The pneumatic slips with a safety structure according to claim 1, characterized in that: The output end of the cylinder (11) is fixedly provided with a connecting bolt (12), and the connecting bolt (12) is arranged inside the connecting seat (10). The inner side wall of the main body (1) is provided with a cylinder mounting groove (13), and the cylinder (11) is arranged inside the cylinder mounting groove (13).

3. The pneumatic slips with a safety structure according to claim 2, characterized in that: A fixing seat (14) is fixedly provided in the middle of the cylinder (11), and the fixing seat (14) is fixed to the notch of the cylinder mounting slot (13) by means of bolts.

4. The pneumatic slips with a safety structure according to claim 3, characterized in that: A plurality of connecting sleeves (15) are fixedly provided at both ends of the main body (1), and the connecting sleeves (15) at both ends of the main body (1) are arranged in a staggered manner. A locking stud (16) is provided through the interior of the connecting sleeve (15), and the locking stud (16) is fixedly provided at the bottom end of the upper cover (2).

5. The pneumatic slips with a safety structure according to claim 4, characterized in that: The inner side wall of the movable slip (4) is provided with an arc-shaped mounting groove (17), and a plurality of tooth plates (18) are fixedly provided inside the mounting groove (17).

6. The pneumatic slips with a safety structure according to claim 5, characterized in that: A handle (19) is fixedly provided at the middle portion of the top end of the upper cover (2).

Images