Novel column tooth drill bit for rock drilling
By designing the structure of the connecting groove and fixing groove between the drill head and the drill rod, and combining the reset assembly, the problem of loose and disconnection of the drill head and the drill rod in the prior art is solved, and more stable connection and simple disassembly are achieved.
Patent Information
- Application Number
- CN202421483971.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing drill head and drill rod are connected by threads, resulting in strong vibrations during rotation, which can easily cause loosening and disconnection of the connection, affecting the operation of the drill head.
A new type of column-toothed brazing head for rock drilling is designed, adopting a structure of connecting grooves and fixing grooves. Through the cooperation of threaded connections and reset components, the stable connection and disassembly of the brazing heads and drill rods are achieved.
The connection stability of the drill head and the drill rod is improved, the phenomenon of disengagement is avoided, the stable work of the drill head during the rock drilling process is ensured, and the disassembly process is simplified.
Smart Images
Figure CN222596016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drill bits, in particular to a novel column tooth drill bit for rock drilling. Background Art
[0002] The drill bit is a tool component. The drill bit body is made of high-quality imported steel, and the cutter head is made of special alloy through special processing and welding technology. The column tooth drill bit is also called ball tooth drill bit and plum blossom drill bit. It generally has taper connection and threaded connection. In the drill tool group, the column tooth drill bit is in direct contact with the rock at the front end. During the rock drilling process, it is subjected to high-frequency stress waves transmitted from the rear end and stress waves reflected by the rock at the front end.
[0003] At present, the drill bit and the drill rod are mostly connected by threads. When the drill rod drives the drill bit to rotate and work, strong vibration will be generated on the threaded connection, which can easily make the connection loose and disconnect, affecting the work of the drill bit. Utility Model Content
[0004] The purpose of the utility model is to provide a new column tooth drill bit for rock drilling, so as to solve the problem that the drill bit and the drill rod proposed in the above background technology are mostly connected only by threads, and when the drill rod drives the drill bit to rotate to work, strong vibration will be generated on the threaded connection, which is easy to make the connection loose and disconnected, affecting the operation of the drill bit.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a new column tooth drill bit for rock drilling, comprising a drill bit body and a drill rod body, the drill bit body and the drill rod body are provided with a connecting mechanism outside, and the connecting mechanism is provided with a fixing mechanism outside;
[0006] The connecting mechanism includes a connecting groove and a fixing groove, the internal thread of the connecting groove is connected to a connecting column, the bottom of the connecting column is provided with a groove, the inner side of the groove is provided with a pushing block, the top of the pushing block is provided with a clamping groove, the inner side of the connecting groove is fixedly connected to the pushing column, the inner side of the fixing groove is installed with a clamping block, and the outside of the pushing block is installed with a reset component.
[0007] Preferably, the reset assembly comprises a reset plate, one end of the reset plate is fixedly connected to a first reset spring, and one end of the first reset spring is fixedly connected to a connecting block.
[0008] Preferably, the reset plate is fixedly connected inside the groove, and one end of the connecting block is fixedly connected to one end of the pushing block.
[0009] Preferably, the connecting groove and the fixing groove are both formed on the outside of the drill bit body, and the connecting column is fixedly connected to the bottom of the drill rod body.
[0010] Preferably, the fixing mechanism comprises a disassembly groove, the inner side of the disassembly groove is threadedly connected to an extrusion rod, an extrusion block is provided at one end of the extrusion rod, and a second return spring is fixedly connected to the bottom of the extrusion block.
[0011] Preferably, the disassembly groove is formed outside the drill bit body, and one end of the disassembly groove is communicated with one end of the fixing groove.
[0012] Preferably, the bottom of the extrusion block is fixedly connected to the top of the clamping block, and one end of the second return spring is fixedly connected to the inner side of the fixing groove.
[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0014] First, the utility model threadably connects the connecting column at the bottom of the drill rod body into the connecting groove at the top of the drill bit body until the push column enters the groove at the bottom of the connecting column, so that the push column squeezes the push block, and the contact end of the push block and the push column is set to be circular, and a circular protrusion is set on the outside of the push column, so that when the protrusion of the push column contacts the push block, the push block can be pushed, and then one end of the push block is pushed into the fixed groove of the drill bit body, and then the card block is engaged with the card groove at the top of the push block to fix the push block, thereby further improving the stability of the push block, so that the drill bit and the drill rod are connected both horizontally and vertically, improving the stability of the connection between the drill bit and the drill rod, and achieving the effect of preventing the drill bit and the drill rod from detaching.
[0015] Second, after the push block enters the fixed groove, the utility model rotates the extrusion rod into the disassembly groove until the extrusion rod squeezes the extrusion block. One end of the extrusion block is set to an oblique triangle, so that the extrusion rod can squeeze the extrusion block downward, so that the clamping block at the bottom of the extrusion block is clamped into the clamping groove at the top of the pushing block, fixing the pushing block to prevent the pushing block from shaking and deviating. When disassembly is required, it is only necessary to turn out the extrusion rod, and the second return spring drives the extrusion block to rise, so that the clamping block is separated from the pushing block, and then the drill rod body is rotated to make the connecting column rotate in the connecting groove, so that the convex end of the pushing column is released from contact with the pushing block, so that the first return spring at the reset plate drives the connecting block to be retracted, thereby driving the pushing block to be retracted into the groove of the connecting column, and then the drill head and the drill rod can be disassembled to complete the disassembly operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is an overall three-dimensional diagram of the utility model;
[0017] Figure 2 This is a three-dimensional diagram of the push column of the utility model;
[0018] Figure 3 It is a cross-sectional view of the utility model;
[0019] Figure 4This is a cross-sectional view of the reset component of the utility model.
[0020] Among them: 1. drill bit body; 2. drill rod body; 3. connecting mechanism; 4. fixing mechanism; 31. connecting groove; 32. fixing groove; 33. connecting column; 34. pushing block; 35. pushing column; 36. clamping block; 37. reset assembly; 38. reset plate; 39. first reset spring; 301. connecting block; 41. extrusion rod; 42. extrusion block; 43. second reset spring. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] The utility model provides the following technical solutions:
[0023] Embodiment 1
[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 A new column tooth drill bit for rock drilling comprises a drill bit body 1 and a drill rod body 2, a connecting mechanism 3 is arranged outside the drill bit body 1 and the drill rod body 2, and a fixing mechanism 4 is arranged outside the connecting mechanism 3;
[0025] The connecting mechanism 3 includes a connecting groove 31 and a fixing groove 32. The internal thread of the connecting groove 31 is connected to a connecting column 33. A groove is provided at the bottom of the connecting column 33. A pushing block 34 is provided on the inner side of the groove. A clamping groove is provided on the top of the pushing block 34. A pushing column 35 is fixedly connected to the inner side of the connecting groove 31. A clamping block 36 is installed on the inner side of the fixing groove 32. A reset component 37 is installed on the outside of the pushing block 34.
[0026] The reset assembly 37 includes a reset plate 38 , one end of which is fixedly connected to a first reset spring 39 , and one end of the first reset spring 39 is fixedly connected to a connecting block 301 .
[0027] The reset plate 38 is fixedly connected inside the groove, and one end of the connecting block 301 is fixedly connected to one end of the pushing block 34 .
[0028] The connecting groove 31 and the fixing groove 32 are both formed on the outside of the drill bit body 1 , and the connecting column 33 is fixedly connected to the bottom of the drill rod body 2 .
[0029] Through the above technical scheme, the connecting column 33 at the bottom of the drill rod body 2 is threadedly connected into the connecting groove 31 at the top of the drill bit body 1 until the pushing column 35 enters the groove at the bottom of the connecting column 33, so that the pushing column 35 squeezes the pushing block 34, and the contact end of the pushing block 34 and the pushing column 35 is set to be circular, and the outer side of the pushing column 35 is provided with a circular protrusion, so that when the protrusion of the pushing column 35 contacts the pushing block 34, the pushing block 34 can be pushed, and then one end of the pushing block 34 is pushed into the fixing groove 32 of the drill bit body 1, and then the clamping block 36 is clamped with the clamping groove at the top of the pushing block 34, so as to fix the pushing block 34, further improve the stability of the pushing block 34, so that the drill bit and the drill rod are connected both horizontally and vertically, improve the stability of the connection between the drill bit and the drill rod, and achieve the effect of preventing the drill bit and the drill rod from being separated.
[0030] Embodiment 2
[0031] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 On the basis of the first embodiment, it is further obtained that the fixing mechanism 4 includes a disassembly groove, the inner side of the disassembly groove is threadedly connected to the extrusion rod 41, one end of the extrusion rod 41 is provided with an extrusion block 42, and the bottom of the extrusion block 42 is fixedly connected to a second return spring 43.
[0032] The disassembly groove is formed outside the drill bit body 1 , and one end of the disassembly groove is communicated with one end of the fixing groove 32 .
[0033] The bottom of the extrusion block 42 is fixedly connected to the top of the clamping block 36 , and one end of the second return spring 43 is fixedly connected to the inner side of the fixing groove 32 .
[0034] The push block 34 is fixed to the top of the push block 34 and the push block 34 is fixed to the top of the push block 34. When the push block 34 is disassembled, the push block 34 is fixed to the top of the push block 34 and the push block 34 is fixed to the top of the push block 34. When the push block 34 needs to be disassembled, the push rod 41 is rotated to rotate the connecting column 33 in the connecting groove 31, so that the protruding end of the pushing column 35 is released from the contact with the pushing block 34, so that the first reset spring 39 at the reset plate 38 drives the connecting block 301 to be retracted, thereby driving the pushing block 34 to be retracted into the groove of the connecting column 33, so that the drill head and the drill rod can be disassembled to complete the disassembly operation.
[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.
Claims
1. A new type of columnar drill bit for rock drilling, comprising a drill bit body (1) and a drill rod body (2), characterized in that: A connecting mechanism (3) is arranged outside the drill bit body (1) and the drill rod body (2), and a fixing mechanism (4) is arranged outside the connecting mechanism (3); The connecting mechanism (3) comprises a connecting groove (31) and a fixing groove (32); the connecting groove (31) is internally threadedly connected to a connecting column (33); a groove is provided at the bottom of the connecting column (33); a pushing block (34) is provided inside the groove; a clamping groove is provided at the top of the pushing block (34); a pushing column (35) is fixedly connected to the inside of the connecting groove (31); a clamping block (36) is installed inside the fixing groove (32); and a reset assembly (37) is installed outside the pushing block (34).
2. A new type of cylindrical drill bit for rock drilling according to claim 1, characterized in that: The reset assembly (37) comprises a reset plate (38), one end of the reset plate (38) is fixedly connected to a first reset spring (39), and one end of the first reset spring (39) is fixedly connected to a connecting block (301).
3. A new type of cylindrical drill bit for rock drilling according to claim 2, characterized in that: The reset plate (38) is fixedly connected inside the groove, and one end of the connection block (301) is fixedly connected to one end of the push block (34).
4. A new type of cylindrical drill bit for rock drilling according to claim 1, characterized in that: The connecting groove (31) and the fixing groove (32) are both arranged outside the drill bit body (1), and the connecting column (33) is fixedly connected to the bottom of the drill rod body (2).
5. The new type of cylindrical drill bit for rock drilling according to claim 1, characterized in that: The fixing mechanism (4) comprises a disassembly groove, the inner side of which is threadedly connected to an extrusion rod (41), one end of the extrusion rod (41) is provided with an extrusion block (42), and the bottom of the extrusion block (42) is fixedly connected to a second return spring (43).
6. A new type of cylindrical drill bit for rock drilling according to claim 5, characterized in that: The disassembly groove is arranged outside the drill bit body (1), and one end of the disassembly groove is communicated with one end of the fixing groove (32).
7. The new type of cylindrical drill bit for rock drilling according to claim 5, characterized in that: The bottom of the extrusion block (42) is fixedly connected to the top of the clamping block (36), and one end of the second return spring (43) is fixedly connected to the inner side of the fixing groove (32).