CN214035578U

CN214035578U - Self-disassembling anti-false-rotation ratchet device for drill rod

Info

Publication number: CN214035578U
Application number: CN202022884278.3U
Authority: CN
Inventors: 毕超
Original assignee: Shanghai Sumberui Intelligent Technology Co ltd
Current assignee: Shanghai Sumberui Intelligent Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-24
Anticipated expiration: 2030-12-03

Abstract

A self-disassembling anti-rotation ratchet device of a drill rod relates to the technical field of drill rod disassembly and assembly, the drill rod comprises an upper rod body, a joint and a lower rod body which are sequentially connected by screw threads, the surface of the joint is provided with symmetrically arranged notches, the anti-rotation ratchet device comprises a bottom plate, an anti-rotation clamping mechanism and a sliding mechanism, a working opening for placing the drill rod is arranged on the bottom plate, the sliding mechanism comprises a sliding plate and a reciprocating actuating element, the sliding plate is slidably arranged on the bottom plate, the reciprocating actuating element is connected with the sliding plate in a driving way so as to drive the sliding plate to be close to or far away from the working opening, the anti-rotation clamping mechanism comprises an anti-rotation clamping plate and a first tension spring, both ends of the first tension spring are connected with the anti-rotation clamping plate, the anti-rotation clamping plate is movably arranged on the sliding plate in a rotating way, the two anti-rotation clamping plates are clamped with the notches, in the utility model, the anti-rotation ratchet device can realize automatic rod disassembly operation, the application range is wide, manual operation is not needed, and labor cost is saved.

Description

Self-disassembling anti-false-rotation ratchet device for drill rod

Technical Field

The utility model relates to a drilling rod dismouting technical field, concretely relates to drilling rod is from dismantling and is prevented mistake ratchet.

Background

The drill rod is a steel pipe with threads at the tail part and is used for connecting surface equipment of a drilling machine and drilling and grinding equipment or a bottom hole device at the bottom end of a drilled well. Its purpose is to carry the mud to the drill bit and raise, lower or rotate with the drill bit. The drill rod generally comprises an upper joint, a lower joint and a pipe body part, wherein the pipe body is in threaded connection with the upper joint and the lower joint.

At present, the drill rods in the drilling industry are manually clamped and braked, one drill rod is braked to rotate, and the other drill rod is rotated to realize the disconnection, so that the manual disconnection mode increases the labor intensity of workers, the efficiency is low, the manpower is wasted, and the manual disconnection mode cannot be applied to automatic equipment, so that the drill rod disconnection mode has a part to be improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a drilling rod is from dismantling prevent mistake ratchet, realizes automatic pole operation of tearing open, and application scope is wide, need not manual operation, the cost of using manpower sparingly, and concrete scheme is as follows:

a drill rod self-disassembly anti-false-rotation ratchet device comprises an upper rod body, a joint and a lower rod body which are sequentially in threaded connection, wherein symmetrically arranged notches are formed in the surface of the joint;

the sliding mechanism comprises a sliding plate and a reciprocating execution element, the sliding plate is slidably mounted on the bottom plate, and the reciprocating execution element is in driving connection with the sliding plate so as to drive the sliding plate to be close to or far away from the working opening;

the anti-rotation clamping mechanism comprises an anti-rotation clamping plate and a first tension spring, the two ends of the first tension spring are connected with the anti-rotation clamping plate, the anti-rotation clamping plate is movably mounted on the sliding plate, and the anti-rotation clamping plate and the notch are clamped and arranged.

Further, prevent mistake ratchet that revolves still includes and prevent that rotation supports tight mechanism, prevent that rotation supports tight mechanism and is close to the work opening sets up, including center pin, adjustable fender and second extension spring, adjustable fender uses the center pin rotate as the rotation center install in on the bottom plate, the both ends of second extension spring respectively with bottom plate, adjustable fender are connected, just adjustable fender keeps away from the one end of second extension spring be formed with the butt cambered surface that connects the adaptation.

Furthermore, prevent that rotation supports tight mechanism still includes the power plate, the power plate aims at the adjustable fender with the tip that the second extension spring is connected, the power plate install in on the sliding plate, through the sliding plate slides and drives the power plate motion realizes in order to overcome the tensile pulling force that produces of second extension spring the power plate promotes the adjustable fender is rotatory.

Furthermore, the anti-rotation clamping mechanism further comprises two limiting supports, the two limiting supports are fixedly mounted on the sliding plate and correspond to the anti-rotation clamping plates, and the two limiting supports are abutted to the end portions, far away from the joint, of the anti-rotation clamping plates.

Furthermore, the end part of the anti-rotation clamping plate close to the joint is provided with a guide arc surface.

Furthermore, two rows of guide pulleys are rotatably mounted on the bottom plate, a guide sliding space is formed between the two rows of guide pulleys, and a limiting sliding groove matched with the sliding plate is formed in the outer wall of each guide pulley.

Furthermore, one end of the sliding plate, which is close to the working opening, is provided with a limiting bayonet, the distance between the limiting bayonets is set from large to small, and the minimum distance between the limiting bayonets is smaller than the outer diameter of the joint.

Further, the reciprocating executing element and the reciprocating driving piece are arranged into a hydraulic cylinder.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) when the rod needs to be disassembled, the device is placed at the position of equipment provided with a drill rod, the drill rod is vertically placed at a working opening, the reciprocating execution element works to drive the sliding plate to slide and gradually approach the drill rod, the two anti-rotation clamping plates are respectively contacted with the joint, the first tension spring generates a retraction trend after being stretched until the two anti-rotation clamping plates are respectively clamped in the notches of the joint, the elastic tension force of the first tension spring limits the rotation of the anti-rotation clamping plates, due to the symmetrical design of the two anti-rotation clamping plates, the rotation motion of the structure below the joint in the drill rod in two clockwise and anticlockwise directions can be limited, the equipment works to drive the upper rod body to move, the upper rod body provides rotating power, and the upper rod body and the lower structure of the drill rod are disassembled and connected The device has wide application range, high automation degree, improved working efficiency, no need of manual operation and labor cost saving;

(2) the limiting bracket is arranged and abutted against the anti-rotation clamping plate to limit the rotation movement of the anti-rotation clamping plate, so that the rotation limitation of the anti-rotation clamping plate on the joint is further realized, and the working stability during rod dismounting is improved;

(3) through the arrangement of the anti-rotation abutting mechanism, when the rod is disassembled, the reciprocating driving piece works to drive the sliding plate to move, the sliding plate drives the power plate to move, the power plate pushes the movable baffle to rotate to the abutting cambered surface to abut against the joint, the drill rod is further clamped to prevent the drill rod from moving, the working stability during the rod disassembling is further improved, the first tension spring stores elastic energy when the movable baffle rotates, and the movable baffle can be subsequently driven to reversely rotate to the initial position;

(4) through the arrangement of the guide pulley, when the reciprocating execution element drives the sliding plate, the sliding plate stably slides under the guiding action of the guide pulley, and the precision of the working position is ensured.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an initial state diagram of the ratchet device for preventing rotation;

fig. 4 is a working state diagram of the anti-false rotation ratchet device.

Reference numerals: 1. a drill stem; 2. a joint; 21. a notch; 3. a rod body is arranged; 4. a base plate; 41. a working opening; 5. a sliding mechanism; 51. a sliding plate; 511. a limiting bayonet; 52. a reciprocating actuator; 6. a guide pulley; 7. an anti-rotation clamping mechanism; 71. an anti-rotation clamping plate; 72. a first tension spring; 73. a limiting bracket; 8. an anti-rotation abutting mechanism; 81. a central shaft; 82. a movable baffle; 821. abutting against the arc surface; 83. a second tension spring; 84. a power plate.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in figure 1, the self-disassembling anti-false-rotation ratchet device for the drill rod is suitable for equipment with the drill rod 1 and with various hydraulic, pneumatic, electric and other driving mechanisms, and achieves automatic rod disassembling. The overall length of the drill rod 1 is generally very long, and comprises an upper rod body 3, a joint 2 and a lower rod body which are sequentially in threaded connection, wherein the outer diameter of the joint 2 is larger than the outer diameters of the upper rod body 3 and the lower rod body, the upper rod body 3 is in linkage arrangement with a driving mechanism on equipment, and the upper rod body 3 and the structure below the upper rod body 3 are required to be separated when the rod is disassembled, so that when the upper rod body 3 rotates, the rotation motion of the joint 2 and the structure below the joint 2 is required to be limited, and the anti-false rotation ratchet device is used for realizing the function of limiting the rotation motion.

With reference to fig. 1 and 2, for simplification, the drill rod 1 shows the upper rod body 3 and the joint 2, the surface of the joint 2 is provided with symmetrically arranged notches 21, and the anti-rotation ratchet device is matched with the notches 21 and the joint 2. Prevent mistake and revolve ratchet including bottom plate 4, prevent that rotation clamping mechanism 7 and slide mechanism 5, offer the work opening 41 that is used for placing drilling rod 1 on the bottom plate 4, work opening 41 is half waist shape for place drilling rod 1, and the work of breaking open and shutting is accomplished in work opening 41. The anti-rotation clamping mechanism 7 is used for matching with a notch 21 on the joint 2 to limit the rotation movement of the joint 2. The sliding mechanism 5 is used for driving the anti-rotation clamping mechanism 7 to move close to or far away from the drill rod 1.

Fig. 3 is an initial state diagram of the ratchet device for preventing false rotation, and fig. 4 is a working state diagram of the ratchet device for preventing false rotation. With reference to fig. 3 and 4, specifically, the sliding mechanism 5 includes a sliding plate 51 and a reciprocating actuator 52, two rows of guide pulleys 6 are rotatably mounted on the bottom plate 4, a guide sliding space is formed between the two rows of guide pulleys 6, a limit sliding slot adapted to the sliding plate 51 is formed on an outer wall of each guide pulley 6, two opposite sides of the sliding plate 51 are inserted into the limit sliding slot, and the sliding plate 51 is arranged in a floating manner with respect to the bottom plate 4, so that the sliding plate 51 is slidably mounted on the bottom plate 4. The reciprocating actuator 52 is provided as a hydraulic cylinder, the telescopic end of the hydraulic cylinder is in driving connection with the sliding plate 51 through the connecting piece, and when the reciprocating actuator 52 works, the sliding plate 51 is driven to slide relative to the guide pulley 6 so as to be close to or far away from the working opening 41.

Preferably, one end of the sliding plate 51 close to the working opening 41 is provided with a limiting bayonet 511, the spacing of the limiting bayonet 511 is set from large to small and is divided into three sections of grooves with different spacing, the spacing of the first section is the largest, the spacing of the second section is gradually reduced to the third section, the spacing of the third section is the smallest, the minimum spacing of the limiting bayonet 511 is smaller than the outer diameter of the connector 2, when the drill rod 1 is detached, the drill rod is vertically arranged at the working opening 41, the connector 2 is located at the limiting bayonet 511 and is lapped on the sliding plate 51, and the sliding plate 51 plays a supporting role.

Prevent that rotation chucking mechanism 7 is whole installs on sliding plate 51, including preventing rotation cardboard 71, first extension spring 72 and spacing support 73, the both ends of first extension spring 72 all can be dismantled and be connected with and prevent rotation cardboard 71, two prevent that rotation cardboard 71 is the symmetry setting, prevent rotation cardboard 71 through setting up pivot movable mounting on sliding plate 51, its tip that is close to joint 2 has seted up the direction cambered surface, after preventing rotation cardboard 71 and joint 2 contact, the tensile elastic potential energy of storing of first extension spring 72, two prevent that rotation cardboard 71 is close to the tip that connects 2 and can keep away from relatively and open, be convenient for get into in the notch 21 that connects 2, make two prevent that rotation cardboard 71 and notch 21 joint set up. Spacing support 73 fixed mounting is on the sliding plate 51, and spacing support 73 corresponds anti-rotation cardboard 71 and is provided with two, and spacing support 73 with prevent that the tip butt setting of rotation cardboard 71 is kept away from joint 2, the rotatory motion of anti-rotation cardboard 71 is prevented in the restriction to realize the rotatory restriction to joint 2, make the unable motion of structure below the body of rod 3 in the drilling rod 1.

The anti-false-rotation ratchet device further comprises an anti-rotation abutting mechanism 8, the anti-rotation abutting mechanism 8 is arranged close to the working opening 41 and comprises a central shaft 81, a movable baffle 82, a second tension spring 83, a power plate 84 and a reciprocating driving piece, the movable baffle 82 is rotatably installed on the bottom plate 4 by taking the central shaft 81 as a rotating center, and the movable baffle 82 is arranged in a suspension mode relative to the bottom plate 4. The two ends of the second tension spring 83 are detachably connected with the bottom plate 4 and the movable baffle 82 respectively, and an abutting arc surface 821 matched with the joint 2 is formed at one end, far away from the second tension spring 83, of the movable baffle 82. The power plate 84 is aligned with the end of the flapper 82 connected to the second extension spring 83, wherein the power plate 84 is mounted to the slide plate 51, and the slide plate 51 moves the power plate 84 when the reciprocating actuator 52 moves the slide plate 51. In the initial state, the second tension spring 83 tensions the flapper 82 so that the abutment curved surface 821 is spaced apart from the drill rod 1.

With reference to fig. 3 and 4, when the rod is disassembled, the device is placed at a position on the equipment where the drill rod 1 is installed, so that the drill rod 1 is vertically placed at the working opening 41, the reciprocating actuator 52 works, the joint 2 is lapped on the sliding plate 51, the anti-rotation clamping plate 71 is clamped with the joint 2, meanwhile, the power plate 84 installed on the sliding plate 51 is moved along with the power plate to be close to the movable baffle 82, the power plate 84 pushes the movable baffle 82, the movable baffle 82 rotates until the butt arc surface 821 is abutted to the joint 2, the joint 2 is further clamped, and a driving mechanism on the equipment drives the upper rod body 3 to rotate, so that the upper rod body 3 of the drill rod 1 and two parts below the upper rod body 3 are disassembled.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A self-disassembling anti-false-rotation ratchet device of a drill rod comprises an upper rod body (3), a connector (2) and a lower rod body which are sequentially connected in a threaded manner, wherein notches (21) are symmetrically formed in the surface of the connector (2), and the self-disassembling anti-false-rotation ratchet device is characterized by comprising a bottom plate (4), an anti-rotation clamping mechanism (7) and a sliding mechanism (5), wherein a working opening (41) for placing the drill rod (1) is formed in the bottom plate (4);

the sliding mechanism (5) comprises a sliding plate (51) and a reciprocating actuating element (52), the sliding plate (51) is slidably mounted on the bottom plate (4), and the reciprocating actuating element (52) is in driving connection with the sliding plate (51) to drive the sliding plate (51) to be close to or far away from the working opening (41);

the anti-rotation clamping mechanism (7) comprises an anti-rotation clamping plate (71) and a first tension spring (72), the two ends of the first tension spring (72) are connected with the anti-rotation clamping plate (71), the anti-rotation clamping plate (71) is movably mounted on the sliding plate (51), and the anti-rotation clamping plate (71) and the notch (21) are connected in a clamping mode.

2. The self-disassembling anti-rotation ratchet device according to claim 1, further comprising an anti-rotation abutting mechanism (8), wherein the anti-rotation abutting mechanism (8) is arranged close to the working opening (41) and comprises a central shaft (81), a movable baffle (82) and a second tension spring (83), the movable baffle (82) is rotatably installed on the bottom plate (4) by taking the central shaft (81) as a rotation center, two ends of the second tension spring (83) are respectively connected with the bottom plate (4) and the movable baffle (82), and an abutting arc surface (821) matched with the joint (2) is formed at one end, away from the second tension spring (83), of the movable baffle (82).

3. The drill rod self-disassembly anti-rotation ratchet device according to claim 2, wherein the anti-rotation abutting mechanism (8) further comprises a power plate (84), the power plate (84) is aligned with the end of the movable baffle (82) connected with the second tension spring (83), the power plate (84) is mounted on the sliding plate (51), and the sliding plate (51) slides to drive the power plate (84) to move so as to overcome the tension generated by the stretching of the second tension spring (83) to realize that the power plate (84) pushes the movable baffle (82) to rotate.

4. The drill rod self-disassembly anti-rotation ratchet device according to claim 1, wherein the anti-rotation clamping mechanism (7) further comprises a limiting bracket (73), the limiting bracket (73) is fixedly installed on the sliding plate (51), two limiting brackets (73) are arranged corresponding to the anti-rotation clamping plate (71), and the limiting bracket (73) is arranged in an abutting mode with the end, away from the joint (2), of the anti-rotation clamping plate (71).

5. The drill rod self-disassembly anti-misoperation ratchet device according to claim 4, wherein the end part of the anti-rotation clamping plate (71) close to the joint (2) is provided with a guide arc surface.

6. The drill rod self-disassembling anti-rotation ratchet device according to claim 1, wherein two rows of guide pulleys (6) are rotatably mounted on the bottom plate (4), a guide and slide space is formed between the two rows of guide pulleys (6), and a limiting slide groove matched with the sliding plate (51) is formed on the outer wall of the guide pulley (6).

7. The drill rod self-disassembly anti-rotation ratchet device as claimed in claim 1, wherein one end of the sliding plate (51) close to the working opening (41) is provided with a limiting bayonet (511), the spacing of the limiting bayonet (511) is set from large to small, and the minimum spacing of the limiting bayonet (511) is smaller than the outer diameter of the joint (2).

8. A drill rod self-disassembly anti-rotation ratchet device according to claim 3, wherein the reciprocating actuator (52) and the reciprocating drive are provided as hydraulic cylinders.