A conveniently replaceable wear ring for a drag bit

Abstract

The utility model provides a convenient wear -resisting ring of excavator, belongs to wear -resisting ring technical field, including wear -resisting ring body and excavator sleeve, be located in the upper clamping piece and lower clamping piece of wear -resisting ring body outside wall, the upper clamping piece is located above lower clamping piece, the rectangular through slot of being respectively set up in wear -resisting ring body outside wall upper clamping piece and lower clamping piece upper position department, the circular slot of being set up in the rectangular through slot inside bottom, and two axle holes of being symmetrically set up in the rectangular through slot inboard wall, the rotation axis of rotating in two the axle hole inside, the limit block of being located between two rotation axis, the utility model discloses a wear -resisting ring and excavator sleeve are designed to transform, can be convenient for wear -resisting ring to install between excavator sleeve and excavator drill rod, need not use traditional fastener, also need not use tool, let dismounting be more simple and convenient, be convenient for wear -resisting ring replacement.

Description

Technical Field

[0001] This utility model belongs to the field of wear-resistant ring technology, specifically relating to a wear-resistant ring for drilling rigs that is easy to replace. Background Technology

[0002] Wear rings are key components commonly used in mechanical equipment. They are mainly used to reduce friction, protect other parts, and improve the service life of equipment. Drilling rigs are construction machinery suitable for hole-forming operations in building foundation engineering, and are mainly suitable for construction in different soil layers.

[0003] Existing drilling rigs typically install wear-resistant rings inside the casing where the drill rod is mounted. These wear-resistant rings not only serve as guides and supports but also effectively reduce wear. However, most existing wear-resistant rings are installed by welding, which makes them difficult to disassemble and replace after installation.

[0004] Therefore, a wear-resistant ring for drilling rigs that is easy to replace is proposed. Summary of the Invention

[0005] This invention provides a wear-resistant ring for drilling rigs that is easy to replace, with the aim of solving the problems mentioned above.

[0006] This utility model provides a replaceable wear-resistant ring for a drilling rig, comprising a wear-resistant ring body and a drilling rig sleeve; an upper locking block and a lower locking block disposed on the outer wall of the wear-resistant ring body, the upper locking block being located above the lower locking block; rectangular through grooves respectively formed on the outer wall of the wear-resistant ring body above the upper and lower locking blocks; an arc groove formed at the bottom of the inner side of the rectangular through groove; two shaft holes symmetrically formed on the inner side wall of the rectangular through groove; a rotating shaft rotating inside the two shaft holes; a limiting block disposed between the two rotating shafts; a vertical groove, an upper horizontal groove, and a lower horizontal groove formed on the inner side wall of the drilling rig sleeve, the upper horizontal groove and the lower horizontal groove being located on one side of the vertical groove, and the upper horizontal groove being located above the lower horizontal groove; and upper and lower locking slots respectively formed at one end of the bottom of the upper and lower horizontal grooves.

[0007] Furthermore, a drilling rod is provided on the inner side of the drilling rig sleeve, a torsion spring is sleeved on the outer side of the rotating shaft, a constraint hole is provided on the inner side wall of the rectangular through groove, one end of the torsion spring is embedded in the interior of the constraint hole, and the other end is embedded in one side wall of the limiting block.

[0008] Furthermore, the upper and lower locking blocks are located on the same vertical axis, and the outer walls of the upper and lower locking blocks are matched and fitted with the inner walls of the upper horizontal groove, the lower horizontal groove, the upper locking groove, and the lower locking groove.

[0009] By adopting the above technical solution, a connecting channel can be formed for the installation of the wear-resistant ring body, thereby achieving the purpose of installing the wear-resistant ring body inside the sleeve of the drilling rig.

[0010] Furthermore, the limiting block will not interfere with the arc groove when it moves circumferentially along the rotation axis;

[0011] By adopting the above technical solution, it is possible to ensure that the limiting block rotates, thereby placing a portion of the limiting block inside the wear-resistant ring body, thus enabling it to have a limiting capability.

[0012] Furthermore, a portion of the limiting block protrudes from the inner wall of the wear-resistant ring body;

[0013] By adopting the above technical solution, in the initial position, the limiting block located inside the wear-resistant ring body will not hinder the vertical movement and horizontal rotation of the wear-resistant ring body along the drilling rig sleeve.

[0014] Furthermore, the upper slot and the vertical slot are both connected to the upper horizontal slot, and the lower slot and the vertical slot are both connected to the lower horizontal slot;

[0015] By adopting the above technical solution, the upper and lower locking blocks can be moved into the upper and lower locking slots.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention redesigns and modifies the wear-resistant ring and the drilling rig sleeve, making it easier to install the wear-resistant ring between the drilling rig sleeve and the drilling rod without the need for traditional fasteners or tools. This simplifies disassembly and assembly, facilitates wear-resistant ring replacement, and utilizes the cooperation of locking blocks, slots, and limiting blocks to ensure stable and secure installation of the wear-resistant ring. The wear-resistant ring will not detach from the drilling rig sleeve, thus effectively reducing wear.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0021] Figure 2This is a three-dimensional sectional view of an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the fit between the wear-resistant ring body and the drilling rig sleeve in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting block structure according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the wear-resistant ring body structure according to an embodiment of the present utility model;

[0025] Figure 6 This utility model Figure 5 Enlarged diagram of point A in the diagram;

[0026] Reference numerals in the attached diagram: 1. Wear-resistant ring body; 11. Upper locking block; 12. Lower locking block; 13. Rectangular through groove; 14. Circular arc groove; 15. Shaft hole; 16. Rotating shaft; 17. Limiting block; 2. Drilling machine sleeve; 21. Vertical groove; 22. Upper horizontal groove; 23. Lower horizontal groove; 24. Upper locking groove; 25. Lower locking groove; 3. Drilling machine drill rod; 4. Torsion spring; 5. Constraint hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] Reference Figure 1-3This utility model provides a replaceable wear ring for a drilling rig, comprising a wear ring body 1 and a drilling rig sleeve 2. The outer side wall of the wear ring body 1 fits against the inner side wall of the drilling rig sleeve 2. An upper locking block 11 and a lower locking block 12 are provided on the outer peripheral wall of the wear ring body 1, with the upper locking block 11 positioned above the lower locking block 12. Rectangular through grooves 13 are provided on the outer peripheral wall of the wear ring body 1 near the upper locking block 11 and the lower locking block 12. An arc groove 14 is provided at the bottom of the inner part of the rectangular through groove 13, and two shaft holes 15 are symmetrically provided on the inner side wall of the rectangular through groove 13. Each shaft hole 15 is rotatably connected to a rotating shaft 16. A limit block 17 is provided between two rotating shafts 16. When the limit block 17 moves circumferentially along the rotating shaft 16, it will not interfere with the arc groove 14, which can ensure that the limit block 17 rotates smoothly. Thus, a part of the limit block 17 is located on the outside of the wear-resistant ring body 1, thereby giving it a limiting ability. A part of the limit block 17 protrudes from the inner wall of the wear-resistant ring body 1. In the initial position, the limit block 17 located on the inside of the wear-resistant ring body 1 will not hinder the wear-resistant ring body 1 from moving vertically and rotating horizontally along the drilling rig sleeve 2.

[0030] A vertical groove 21 is formed on the inner peripheral wall of the drilling rig sleeve 2. An upper horizontal groove 22 and a lower horizontal groove 23 are formed on the inner peripheral wall of the drilling rig sleeve 2 near the vertical groove 21. The upper horizontal groove 22 is located above the lower horizontal groove 23. An upper locking groove 24 is formed at one end of the bottom of the upper horizontal groove 22, and a lower locking groove 25 is formed at one end of the bottom of the lower horizontal groove 23. The upper locking block 11 and the lower locking block 12 are on the same vertical axis, and the outer surfaces of the upper locking block 11 and the lower locking block 12 are... The side walls are matched and fitted with the inner side walls of the upper horizontal groove 22, lower horizontal groove 23, upper slot 24 and lower slot 25, forming a connected channel for the installation of the wear-resistant ring body 1, so as to install the wear-resistant ring body 1 inside the drilling rig sleeve 2. The upper slot 24 and vertical groove 21 are connected to the upper horizontal groove 22, and the lower slot 25 and vertical groove 21 are connected to the lower horizontal groove 23, so that the upper locking block 11 and the lower locking block 12 can move into the interior of the upper slot 24 and the lower slot 25.

[0031] Specifically, during the installation of the wear-resistant ring body 1, the wear-resistant ring body 1 is moved vertically upward from the bottom of the drilling rig sleeve 2, and the upper locking block 11 and lower locking block 12 on the wear-resistant ring body 1 are moved upward in a straight line along the vertical groove 21. When the upper locking block 11 and lower locking block 12 move to the horizontal side of the upper horizontal groove 22 and the lower horizontal groove 23 respectively, the wear-resistant ring body 1 is rotated, and the upper locking block 11 and lower locking block 12 on the wear-resistant ring body 1 move circumferentially. The upper locking block 11 and lower locking block 12 move in an arc trajectory inside the upper horizontal groove 22 and the lower horizontal groove 23 respectively. When the wear-resistant ring body 1 can no longer rotate, the upper locking block 11 and lower locking block 12 are located above the upper locking groove 24 and the lower locking groove 25 respectively. The wear-resistant ring body 1 is released, and the wear-resistant ring body 1 moves downward under its own gravity. The upper locking block 11 falls into the upper locking groove 24, and the lower locking block 12 falls into the lower locking groove 25, thus completing the initial positioning and installation of the wear-resistant ring body 1.

[0032] Subsequently, the drill rod 3 of the drilling rig is installed inside the drilling rig sleeve 2. The drill rod 3 is moved vertically upward from the bottom of the drilling rig sleeve 2. As the drill rod 3 moves, it comes into contact with the limiting block 17. By rotating the shaft 16 in the shaft hole 15, the limiting block 17 is pushed vertically by the drill rod 3. One side of the limiting block 17 rotates toward the inside of the wear-resistant ring body 1 until a part of the limiting block 17 rotates into the inside of the upper slot 24 and the lower slot 25. Since the drill rod 3 is limited by one side wall of the limiting block 17, the other side wall of the limiting block 17 is stably located inside the upper slot 24 and the lower slot 25. Under the limitation of the limiting block 17, the upper locking block 11 and the lower locking block 12 on the wear-resistant ring body 1 have no space to move upward, thus ensuring that the wear-resistant ring body 1 is installed stably and firmly.

[0033] Example 2

[0034] Reference Figure 1 , Figure 4-6 Based on the above embodiments, this utility model embodiment also proposes a wear-resistant ring for easy replacement of a drilling machine, including a wear-resistant ring body 1 and a drilling machine rod 3 located inside it. A torsion spring 4 is sleeved on the outer side of the rotating shaft 16. A constraint hole 5 is opened on the inner side wall of the rectangular through groove 13. One end of the torsion spring 4 is embedded in the interior of the constraint hole 5, and the other end is embedded in the side wall of the limiting block 17.

[0035] Specifically, when the drill rod 3 of the excavator pushes the limiting block 17 to rotate, the torsion spring 4 on the outside of the rotating shaft 16 is compressed. When it is necessary to disassemble the wear-resistant ring body 1, after the drill rod 3 of the excavator is removed, the pressure on one side of the limiting block 17 disappears. Under the action of the rebound force of the torsion spring 4, the limiting block 17 resets and rotates. A part of the limiting block 17 rotates to the inside of the wear-resistant ring body 1. At this time, the upper locking block 11 and the lower locking block 12 can move inside the upper locking groove 24 and the lower locking groove 25, respectively. Then, during disassembly, the wear-resistant ring body 1 is first pushed upward, then the wear-resistant ring body 1 is rotated, and finally the wear-resistant ring body 1 is moved downward. The wear-resistant ring body 1 can then be separated from the excavator sleeve 2, making it easy to replace the wear-resistant ring body 1.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant ring for a drilling rig that is easy to replace, characterized in that: It includes a wear-resistant ring body (1) and a drilling rig sleeve (2); An upper locking block (11) and a lower locking block (12) are provided on the outer side wall of the wear-resistant ring body (1), with the upper locking block (11) located above the lower locking block (12); Rectangular through slots (13) are respectively opened on the outer side wall of the wear-resistant ring body (1) above the upper locking block (11) and the lower locking block (12); An arcuate groove (14) is formed at the bottom of the rectangular through groove (13); and Two shaft holes (15) are symmetrically opened on the inner sidewall of the rectangular through groove (13); Rotating shaft (16) inside the two said shaft holes (15); A limiting block (17) is provided between the two rotating shafts (16); Vertical groove (21), upper horizontal groove (22) and lower horizontal groove (23) are formed on the inner side wall of the drilling rig sleeve (2). The upper horizontal groove (22) and lower horizontal groove (23) are both located on one side of the vertical groove (21), and the upper horizontal groove (22) is located above the lower horizontal groove (23). Upper slot (24) and lower slot (25) are respectively opened at the bottom of the upper horizontal slot (22) and lower horizontal slot (23) near one side.

2. The easily replaceable wear ring for drilling rigs according to claim 1, characterized in that: The drilling rig sleeve (2) is provided with a drilling rig rod (3) on the inner side, and a torsion spring (4) is sleeved on the outer side of the rotating shaft (16). A constraint hole (5) is opened on the inner side wall of the rectangular through groove (13). One end of the torsion spring (4) is embedded in the interior of the constraint hole (5), and the other end is embedded in the side wall of the limiting block (17).

3. The easily replaceable wear ring for drilling rigs according to claim 1, characterized in that: The upper locking block (11) and the lower locking block (12) are on the same vertical axis, and the outer sidewalls of the upper locking block (11) and the lower locking block (12) are matched and fitted with the inner sidewalls of the upper horizontal groove (22), the lower horizontal groove (23), the upper locking groove (24), and the lower locking groove (25).

4. The easily replaceable wear ring for drilling rigs according to claim 1, characterized in that: The limiting block (17) will not interfere with the arc groove (14) when it moves circumferentially along the rotating shaft (16).

5. The easily replaceable wear ring for drilling rigs according to claim 1, characterized in that: A portion of the limiting block (17) protrudes from the inner wall of the wear-resistant ring body (1).

6. The easily replaceable wear ring for drilling rigs according to claim 1, characterized in that: The upper slot (24) and the vertical slot (21) are both connected to the upper horizontal slot (22), and the lower slot (25) and the vertical slot (21) are both connected to the lower horizontal slot (23).

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