Lightweight drill rod slip

Abstract

The utility model discloses a lightweight drill pipe slip which comprises a positioning shell, a first slip shell is arranged on the inner side of the positioning shell, a slip body is arranged on the inner side of the first slip shell, a connecting block is fixed to the joint of the first slip shell and the slip body, a connecting groove is formed in the joint of the slip body and the connecting block, and the first slip shell and the slip body are connected through the connecting groove. A connecting groove is formed in the top of the positioning shell, the connecting groove and the connecting block are connected in a sliding mode, two sets of lifting handles are fixed to the two sides of the top of the positioning shell, a second slip shell consistent with the first slip shell in shape and size is arranged on one side of the first slip shell, and a combined clamping block is fixed to the side, close to the positioning shell, of the first slip shell and the side, close to the positioning shell, of the second slip shell. The first slip shell and the second slip shell which are rotationally connected through the shaft seat and the connecting shaft are arranged, the connecting block arranged on the inner side can be connected with the slip through the connecting groove, and when the first slip shell and the second slip shell are rotationally opened through the shaft seat and the connecting shaft, the slip can be connected with the first slip shell and the second slip shell through sliding.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drill pipe slip, specifically to a light weight drill pipe slip. BACKGROUND

[0002] Drill pipe slip is a tool for clamping and suspending drill string in the drilling process, and is an essential tool for make-up or breakout work. The drill pipe slip is a three-piece structure connected by a hinge pin, which is composed of a slip piece, a slip tooth and a handle. The outer shape is a conical body that can be wedged into the inner hole of a rotary table. The inner wall is surrounded to form a circular hole, and the slip tooth is installed on it. During the drilling process, when the drill pipe needs to be clamped, the rotary table of the drilling machine drives the slip to rotate, and the drill pipe rotates under the clamping action of the slip, thereby achieving the clamping and suspension of the drill pipe.

[0003] According to the search, a strong drill pipe slip is disclosed in Chinese patent document CN219528951U. By rotating the knob on the double-headed screw rod, the threads on both ends of the double-headed screw rod are opposite in rotation direction. Due to the characteristics of the threads, the rod sleeve can move closer or farther apart, thereby moving the upper and lower slips towards each other, and thus being suitable for drill pipes of different sizes for convenient use. However, there are still the following problems:

[0004] The above-mentioned light weight drill pipe slip has the problem that the internal slip needs to be replaced due to wear after a period of use, but the existing structure is not convenient for disassembling and replacing the internal contact slip. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a light weight drill pipe slip to solve the problem of the light weight drill pipe slip in the background art, which needs to be replaced due to wear after a period of use, but the existing structure is not convenient for disassembling and replacing the internal contact slip.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reinforced power insulation plywood to prevent dispersion, comprising a positioning shell, a first slip shell is arranged on the inner side of the positioning shell, a slip is arranged on the inner side of the first slip shell, a connecting block is fixed at the connection between the first slip shell and the slip, a connecting groove is formed at the connection between the slip and the connecting block, and the connecting groove and the connecting block are connected by sliding;

[0007] Two groups of lifting handles are fixed on the top of the positioning shell, a second slip shell with the same shape and size is arranged on one side of the first slip shell, a combined clamping block is fixed on the side of the first slip shell and the second slip shell close to the positioning shell, and a limiting block is arranged at the connection between the positioning shell and the combined clamping block.

[0008] Preferably, the positioning shell is provided with four groups, and the four groups of positioning shells are arranged outside the first slip bowl shell and the second slip bowl shell.

[0009] Preferably, the limiting block is insertedly connected between the outer side surface of the first slip bowl shell and the second slip bowl shell and the combined clamping block, and the connecting position of the positioning shell and the combined clamping block is provided with a positioning screw.

[0010] Preferably, the first slip bowl shell and the second slip bowl shell are provided with four groups, and an axle seat is fixed at the connecting position of each group of the first slip bowl shell and the second slip bowl shell, and the first slip bowl shell and the second slip bowl shell are rotatably connected through the connecting shaft and the axle seat.

[0011] Preferably, the first slip bowl shell and the second slip bowl shell are provided with four groups, and an axle seat is fixed at the connecting position of each group of the first slip bowl shell and the second slip bowl shell, and the first slip bowl shell and the second slip bowl shell are rotatably connected through the connecting shaft and the axle seat.

[0012] Preferably, the first slip bowl shell and the second slip bowl shell are provided with four groups, and an axle seat is fixed at the connecting position of each group of the first slip bowl shell and the second slip bowl shell, and the first slip bowl shell and the second slip bowl shell are rotatably connected through the connecting shaft and the axle seat.

[0013] Preferably, the connecting block is of a 'T' shaped structure, and a limiting baffle of a strip structure is fixed at the end of the connecting block away from the axle seat, and the width size of the limiting baffle is consistent with the width size of the connecting block, and the connecting block, the limiting baffle and the slip bowl are insertedly connected.

[0014] Preferably, the movable slot is also insertedly connected with the limiting block, and the limiting block is provided with a structure consistent with the shape of the movable slot at the middle part close to the positioning shell.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The first slip bowl shell and the second slip bowl shell are rotatably connected through the axle seat and the connecting shaft, the connecting block arranged inside can connect the slip bowl through the connecting slot, and when the first slip bowl shell and the second slip bowl shell are opened through the axle seat and the connecting shaft, the slip bowl can be connected with the first slip bowl shell and the second slip bowl shell through sliding.

[0017] 2. The limiting block is inserted into the inside of the combined clamping block and the movable slot of the two groups of first slip bowl shells and second slip bowl shells adjacent to each other, the limiting block can avoid the first slip bowl shell and the second slip bowl shell from being opened outwardly through the movable slot, the positioning shell and the combined clamping block are fixed through the positioning screw, and the combination and fixing of the four groups of first slip bowl shells and second slip bowl shells can be completed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2It is the cross section structure schematic view of the utility model;

[0020] Figure 3 It is the first slip bowl outside structure schematic view of the utility model;

[0021] Figure 4 It is the first slip bowl inside structure schematic view of the utility model;

[0022] Figure 5 It is the first slip bowl and the second slip bowl rotating structure schematic view of the utility model.

[0023] In the drawing: 1, positioning shell;101, limiting block;102, positioning screw;2, lifting handle;3, first slip bowl;301, second slip bowl;302, shaft seat;303, connecting shaft;4, slip;401, connecting groove;5, connecting block;501, limiting baffle;6, combined clamping block;7, movable slot. DETAILED DESCRIPTION

[0024] The technical scheme 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.

[0025] Embodiment 1, please refer to Figures 1-5 The utility model provides a kind of light weight drilling pipe slip, including positioning shell 1, limiting block 101, positioning screw 102, lifting handle 2, first slip bowl 3, second slip bowl 301, shaft seat 302, connecting shaft 303, slip 4, connecting groove 401, connecting block 5, limiting baffle 501, combined clamping block 6, movable slot 7, the inside of positioning shell 1 is provided with first slip bowl 3, positioning shell 1 is provided with four groups, and four groups positioning shell 1 is arranged on the outside of first slip bowl 3, second slip bowl 301, positioning shell 1 can be fixed to the connection of four groups first slip bowl 3, second slip bowl 301;

[0026] Specifically, as shown in Figure 1 And Figure 3 First slip bowl 3, second slip bowl 301 are provided with four groups, and the connecting place of each group first slip bowl 3 and second slip bowl 301 is fixed with shaft seat 302, first slip bowl 3 and second slip bowl 301 are rotatably connected by connecting shaft 303 and shaft seat 302, the rotation of first slip bowl 3, second slip bowl 301 can open the inside of first slip bowl 3, second slip bowl 301, facilitate the installation and disassembly of slip 4, and the first slip bowl 3 of the first slip bowl 3, second slip bowl 301, second slip bowl 301 can cooperate with the limiting baffle 501 of another end, so that slip 4 is mutually connected and fixed between them;

[0027] Specifically, as shown in Figure 1 And Figure 3As shown, the first slip shell 3 and the second slip shell 301 have a movable groove 7 on the outer side of one end near the connecting shaft 303 and the bearing seat 302. The movable groove 7 allows the first slip shell 3 and the second slip shell 301 to rotate outward through the connecting shaft 303 and the bearing seat 302, so that one end of the slip 4 can be exposed, making it easy to remove the slip 4 from the connecting shaft 303 end of the first slip shell 3 and the second slip shell 301.

[0028] Specifically, such as Figure 3 and Figure 4 As shown, the movable groove 7 is also connected to the limiting block 101 by insertion, and the limiting block 101 has a structure with a shape consistent with the shape of the movable groove 7 that protrudes from the middle of the positioning shell 1. The protruding structure on the limiting block 101 can be locked inside the movable groove 7, so that the first slip shell 3 and the second slip shell 301 in the same group can be fixed to prevent the first slip shell 3 and the second slip shell 301 from rotating.

[0029] Specifically, such as Figure 2 and Figure 3 As shown, two sets of lifting handles 2 are fixed on the top two sides of the positioning shell 1. A second locking shell 301 with the same shape and size is provided on one side of the first locking shell 3. A combination locking block 6 is fixed on the side of the first locking shell 3 and the second locking shell 301 near the positioning shell 1. A limit block 101 is provided at the connection between the positioning shell 1 and the combination locking block 6. The limit block 101 and the combination locking block 6 on the outer side of the first locking shell 3 and the second locking shell 301 are connected by insertion. A positioning screw 102 is provided at the connection between the positioning shell 1 and the combination locking block 6. By connecting the combination locking block 6 and the positioning shell 1 with the positioning screw 102, the positioning shell 1 can be installed on the outside of the first locking shell 3 and the second locking shell 301. In this way, the four sets of first locking shells 3 and second locking shells 301 can be connected and fixed.

[0030] Example 2, specifically, as follows Figure 3 , Figure 4 and Figure 5 As shown, the outer side of the connection between the four sets of first slip shells 3 and second slip shells 301 is connected to the positioning shell 1, and the four sets of positioning shells 1 are aligned with the connection between the first slip shells 3 and second slip shells 301. In this way, the first slip shells 3 and second slip shells 301 can be connected and fixed through the positioning shell 1, which facilitates the assembly and use of the equipment.

[0031] The inner side of the first slip shell 3 is provided with a slip 4, the connecting part of the first slip shell 3 and the slip 4 is fixed with a connecting block 5, and the connecting part of the slip 4 and the connecting block 5 is provided with a connecting groove 401, the section of the connecting block 5 is a T-shaped structure, and the end of the connecting block 5 away from the shaft seat 302 is fixed with a strip-shaped limiting baffle 501, the width size of the limiting baffle 501 is consistent with the width size of the connecting block 5, the connecting block 5, the limiting baffle 501 and the slip 4 are inserted and connected, the slip 4 can be installed to the inner side of the first slip shell 3 and the second slip shell 301 through sliding from the side through the connecting block 5, the slip 4 is conveniently installed, or the damaged slip 4 is replaced, and the connecting groove 401 and the connecting block 5 are slidingly connected.

[0032] In use, the first slip shell 3 and the second slip shell 301 are rotatably connected through the shaft seat 302 and the connecting shaft 303, the inner side of the first slip shell 3 and the second slip shell 301 is provided with the connecting block 5, and the connecting block 5 can be connected with the slip 4 through the connecting groove 401, when the first slip shell 3 and the second slip shell 301 are rotatably opened through the shaft seat 302 and the connecting shaft 303, the slip 4 can be connected with the first slip shell 3 and the second slip shell 301 through sliding, then the first slip shell 3 and the second slip shell 301 are rotatably inward through the shaft seat 302 and the connecting shaft 303, the combined first slip shell 3 and the second slip shell 301 can fix the slip 4 through the limiting baffle 501 at one end, then the limiting block 101 is inserted into the inner side of the combined block 6 and the movable groove 7 of the adjacent two groups of the first slip shell 3 and the second slip shell 301, the limiting block 101 can fill the movable groove 7, so that the first slip shell 3 and the second slip shell 301 are prevented from being rotatably opened outward through the movable groove 7, then the positioning housing 1 and the combined block 6 are fixed through the positioning screw 102, the combination and fixation of the four groups of the first slip shell 3 and the second slip shell 301 are completed, so that the slip 4 in the device can be conveniently replaced and combined, and the light-weight drill rod slip is completed, it should be noted that the utility model is a light-weight drill rod slip, all parts are general standard parts or parts known by those skilled in the art, the structure and principle thereof can be known by those skilled in the art through a technical manual or through a conventional experimental method, all electrical components in the device are connected through wires, the specific connection means should be referred to the working principle, the electrical components are sequentially connected, and the detailed connection means is a known technology in the art.

[0033] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lightweight drill pipe slip comprising a positioning housing (1), characterized in that: The inner side of the positioning shell (1) is provided with a first slip shell (3), the inner side of the first slip shell (3) is provided with a slip (4), the connecting portion of the first slip shell (3) and the slip (4) is fixedly provided with a connecting block (5), and the connecting portion of the slip (4) and the connecting block (5) is provided with a connecting groove (401), and the connecting groove (401) and the connecting block (5) are in sliding connection. The top of the positioning shell (1) is fixedly provided with two groups of lifting handles (2), one side of the first slip shell (3) is provided with a second slip shell (301) with the same shape and size, and the first slip shell (3) and the second slip shell (301) are fixedly provided with a combined clamping block (6) close to one side of the positioning shell (1), and the connecting portion of the positioning shell (1) and the combined clamping block (6) is provided with a limiting block (101).

2. The lightweight drill pipe slip according to claim 1, wherein: The positioning shell (1) is provided with four groups, and the four groups of positioning shells (1) are arranged outside the first slip shell (3) and the second slip shell (301).

3. The lightweight drill pipe slip of claim 1, wherein: The limiting block (101) is in insertion connection with the combined clamping block (6) on the outer side of the first slip shell (3) and the second slip shell (301), and the connecting portion of the positioning shell (1) and the combined clamping block (6) is provided with a positioning screw (102).

4. The lightweight drill pipe slip of claim 1, wherein: The first slip shell (3) and the second slip shell (301) are provided with four groups, and the connecting portion of each group of the first slip shell (3) and the second slip shell (301) is fixedly provided with an axle seat (302), and the first slip shell (3) and the second slip shell (301) are in rotary connection through the connecting shaft (303) and the axle seat (302).

5. The lightweight drill pipe slip of claim 1, wherein: The first slip shell (3) and the second slip shell (301) are provided with a movable groove (7) on the outer side of one end close to the connecting shaft (303) and the axle seat (302).

6. The lightweight drill pipe slip of claim 1, wherein: The connecting portion of the four groups of the first slip shell (3) and the second slip shell (301) is connected with the positioning shell (1), and the connecting portions of the four groups of the positioning shell (1) and the first slip shell (3) and the second slip shell (301) are aligned and distributed.

7. The lightweight drill pipe slip of claim 1, wherein: The connecting block (5) is in insertion connection with the slip (4) and the limiting baffle (501) of strip structure fixedly arranged on the end away from the axle seat (302), and the width size of the limiting baffle (501) is consistent with the width size of the connecting block (5).

8. The lightweight drill pipe slip of claim 5, wherein: The movable groove (7) is also in insertion connection with the limiting block (101), and the limiting block (101) is provided with a structure with the same shape as the movable groove (7) on the middle close to the positioning shell (1).

Images