Drill bit with disassembly and assembly structure

Abstract

The utility model discloses a drill bit with a dismounting structure, which comprises a drill bit connecting rod, the bottom of the drill bit connecting rod is fixedly connected with a mounting ring, the outer side of the mounting ring is fixedly connected with a limiting block, the bottom of the mounting ring is provided with a fixing disc, the top of the fixing disc is slidably connected with two clamping sleeves, and the two clamping sleeves are fixedly connected with the mounting ring. The inner walls of the two clamping sleeves make contact with the outer side of the mounting ring, a clamping assembly is arranged at the top of the fixing disc and used for driving the two clamping sleeves to move, and a drill bit body is fixedly connected to the bottom of the fixing disc. The two clamping sleeves are driven by the clamping assembly to move on the top of the fixing disc, connection is carried out in the mode that the clamping sleeves wrap the mounting ring, the drill bit can be rapidly disassembled and assembled, dependence on disassembling and assembling tools is reduced, and the using effect of the drill bit in hard rock drilling work is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hard rock drilling instrument technical field, concretely is a drill bit with dismounting structure. BACKGROUND

[0002] Hard rock drilling instrument refers to the professional equipment for drilling in hard rock, mainly including drill bit, drill rod and related accessories, these equipment is indispensable important tool in geological exploration, mining and underground engineering construction, and the drill bit is the core component of the hard rock drilling instrument, and the design and material selection directly affect the drilling efficiency and operation life.

[0003] Through the retrieval, China patent discloses a quick dismounting drill bit connecting structure, and its authorized announcement number is (CN214557654U), including first sleeve and dismounting assembly, the inner surface of first sleeve is sleeved with second sleeve, the dismounting assembly includes first connecting rod and second connecting rod, the outer surface of second connecting rod is welded with first gear ring, the outer surface of first connecting rod is sleeved with first rubber sleeve, the outer surface of first connecting rod is sleeved with second rubber sleeve below first rubber sleeve, one end of second connecting rod is welded with plug, the inner surface of second sleeve is sleeved with clamping assembly, the clamping assembly includes fixed block, the outer surface of top end of fixed block is provided with external thread, the outer surface of bottom end of fixed block is provided with limiting block, the bottom end of clamping assembly is provided with drill bit.

[0004] The patent can realize the quick dismounting of the drill bit by inserting the plug into the groove, and then through the meshing of the first gear ring and the second gear ring and the screw connection of the fixed block and the first sleeve, so that the dismounting of the drill bit is more convenient, however, in actual use, the patent needs to be assisted by the external dismounting assembly, when the dismounting assembly is lost or damaged, the corresponding dismounting work cannot be completed, and at the same time, the engagement of the first gear ring and the second gear ring also has certain difficulty when connecting the plug and the groove, in order to solve the above problems, we propose a drill bit with dismounting structure. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a drill bit with dismounting structure to solve the problems in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: A drill bit with dismounting structure is used for drill connecting rod, the bottom of drill connecting rod is fixedly connected with installation ring, the outside of installation ring is fixedly connected with limiting block, the bottom of installation ring is provided with fixed disc, the top of fixed disc is slidably connected with two clamping sleeves, the inner wall of two clamping sleeves is in contact with the outside of installation ring, the top of fixed disc is provided with clamping assembly, clamping assembly is used to drive two clamping sleeves to move, the bottom of fixed disc is fixedly connected with drill body.

[0007] As further preferred of the technical scheme, the clamping assembly comprises two fixed plates, both of the fixed plates are fixedly connected to the top of the fixed disc, both of the fixed plates are rotatably connected to the screw rods on the sides away from each other, the screw rods are threadedly connected to the moving plates, and the moving plates are fixedly connected to the clamping sleeves.

[0008] As further preferred of the technical scheme, a double-head servo motor is fixedly installed between the two fixed plates, and the output ends of the double-head servo motor extend to the outside of the two fixed plates and are fixedly connected to the screw rods.

[0009] As further preferred of the technical scheme, the drill body is composed of a tungsten alloy drill bit, an expanding drill body and a gentle drill body, the bottom end of the drill body is the tungsten alloy drill bit, the outside of the tungsten alloy drill bit is provided with a cutting edge, the gentle drill body is fixedly connected to the bottom of the fixed plate, and the expanding drill body is fixedly connected between the tungsten alloy drill bit and the gentle drill body.

[0010] As further preferred of the technical scheme, two limiting grooves are formed in the top of the fixed disc, a sliding plate is slidably connected between the inner walls of the limiting grooves, and the top of the sliding plate is fixedly connected to the clamping sleeve.

[0011] As further preferred of the technical scheme, a control button is fixedly installed on the outside of the fixed disc, and a transparent protective shell is arranged on the outside of the control button.

[0012] The utility model provides a kind of drill bit with dismounting structure, with the following beneficial effects:

[0013] (1) the utility model discloses two clamping sleeves are moved on the top of fixed disc by clamping assembly, and the installation ring is connected by the way of being wrapped by clamping sleeve, the quick dismounting of drill bit can be realized, the dependence on dismounting tool is reduced, and the use effect of drill bit in hard rock drilling work is improved.

[0014] (2) The utility model discloses a tungsten alloy drill bit, expansion type drill body and gentle type drill body constitute the drill bit body, and the cutting edge of the external of the tungsten alloy drill bit is convenient to the hard rock and is broken to carry out the drilling work, and the expansion type drill body and gentle type drill body are further used to the hole of corresponding specification on the hard rock surface, and the use of the drill bit is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the split structure schematic diagram of the utility model;

[0017] Figure 3 It is the clamping sleeve structure schematic diagram of the utility model;

[0018] Figure 4 It is the drill bit structure schematic diagram of the utility model;

[0019] In the drawing: 1, drill bit connecting rod, 2, installation ring, 3, fixed disc, 4, clamping sleeve, 5, fixed plate, 6, threaded rod, 7, double -end servo motor, 8, control button, 9, moving plate, 10, limit groove, 11, sliding plate, 12, transparent protective shell, 13, limit block, 14, drill bit body, 15, tungsten alloy drill bit, 16, expansion type drill body, 17, gentle type drill body. DETAILED DESCRIPTION

[0020] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the drawings in the utility model embodiment.

[0021] The utility model provides technical scheme: such as Figures 1-4As shown, in this embodiment, a drill bit with disassembly structure, including drill bit connecting rod 1, the bottom of drill bit connecting rod 1 is fixedly connected with mounting ring 2, the outer side of mounting ring 2 is fixedly connected with limiting block 13, the bottom of mounting ring 2 is provided with fixed disc 3, the top of fixed disc 3 is slidably connected with two clamping sleeves 4, the inner wall of two clamping sleeves 4 is in contact with the outer side of mounting ring 2, the top of fixed disc 3 is provided with clamping assembly, clamping assembly is used to drive two clamping sleeves 4 to move, the bottom of fixed disc 3 is fixedly connected with drill bit body 14, drill bit body 14 is composed of tungsten alloy drill bit 15, expansion type drill body 16 and gentle type drill body 17, the bottom end of drill bit body 14 is tungsten alloy drill bit 15, the outer side of tungsten alloy drill bit 15 is provided with cutting edge, gentle type drill body 17 is fixedly connected with the bottom of fixed plate 5, expansion type drill body 16 is fixedly connected between tungsten alloy drill bit 15 and gentle type drill body 17, the top of fixed disc 3 is provided with two limiting grooves 10, the inner wall between limiting grooves 10 is slidably connected with sliding plate 11, the top of sliding plate 11 is fixedly connected with clamping sleeve 4, the outer side of fixed disc 3 is fixedly installed with control button 8, the outer side of control button 8 is provided with transparent protective shell 12.

[0022] When hard rock drilling work is carried out, two clamping sleeves 4 are arranged on both sides of mounting ring 2, then clamping assembly is started by control button 8, two clamping sleeves 4 are driven by clamping assembly to approach each other and wrap mounting ring 2 inside, one side of two clamping sleeves 4 approaching each other will be in contact with both sides of limiting block 13, after assembly is completed, drill bit connecting rod 1 is driven by drilling machine output end, so that drill bit body 14 rotates at high speed and contacts with hard rock surface, hard rock surface is broken and drilled by tungsten alloy drill bit 15, then drilling work of hard rock is completed under the cooperation of expansion type drill body 16 and gentle type drill body 17 according to actual use requirement.

[0023] As shown, Figures 1-4 Clamping assembly includes two fixed plates 5, both fixed plates 5 are fixedly connected with the top of fixed disc 3, both fixed plates 5 are rotatably connected with threaded rods 6 on the side away from each other, threaded rods 6 are threadedly connected with moving plates 9 on the outer side, one side of moving plate 9 is fixedly connected with clamping sleeve 4, double-head servo motor 7 is fixedly installed between two fixed plates 5, the output end of double-head servo motor 7 extends to the outer side of two fixed plates 5 and is fixedly connected with threaded rods 6.

[0024] Two threaded rods 6 are driven to rotate by double-head servo motor 7, so that moving plate 9 drives clamping sleeve 4 to move on the top of fixed disc 3, limiting groove 10 and sliding plate 11 can play a limiting role, thereby facilitating the quick disassembly between drill bit connecting rod 1 and drill bit body 14, further improving the use efficiency of drill bit body 14, during the use of drill bit, due to the need to ensure the concentricity of gravity center, the clamping assembly is increased, and a certain counterweight unit is needed to be increased, so as to ensure the gravity center in the shaft center.

[0025] The utility model provides a drill with dismounting structure, specific working principle is as follows: when carrying out hard rock drilling work, through setting two clamping sleeves 4 in the both sides of installation ring 2, then using control button 8 to start double -end servo motor 7, using double -end servo motor 7 to drive two threaded rods 6 to rotate, make moving plate 9 drive clamping sleeve 4 in the top of fixed disc 3 mutually close and wrap installation ring 2 in the inside, the side of two clamping sleeves 4 mutually close will contact with the both sides of limiting block 13, after completing assembly, through the drill output end drive drill connecting rod 1, make drill body 14 high -speed rotation and contact with hard rock surface, through tungsten alloy drill bit 15 to the hard rock surface carries out breaking and drilling, then according to actual use demand under the cooperation of expansion type drill body 16 and gentle type drill body 17, complete the drilling work to hard rock.

[0026] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A drill bit with a detachable assembly structure, comprising a drill bit connecting rod (1), characterized in that: The bottom of the drill bit connecting rod (1) is fixedly connected to an installation ring (2), and the outer side of the installation ring (2) is fixedly connected to a limit block (13). The bottom of the installation ring (2) is provided with a fixing plate (3), and the top of the fixing plate (3) is slidably connected to two clamping sleeves (4). The inner walls of the two clamping sleeves (4) are in contact with the outer side of the installation ring (2). The top of the fixing plate (3) is provided with a clamping assembly, which is used to drive the two clamping sleeves (4) to move. The bottom of the fixing plate (3) is fixedly connected to a drill bit body (14).

2. A drill bit with a detachable structure according to claim 1, characterized in that: The clamping assembly includes two fixed plates (5), both of which are fixedly connected to the top of the fixed disk (3). The two fixed plates (5) are rotatably connected to threaded rods (6) on opposite sides. A movable plate (9) is threadedly connected to the outer side of the threaded rods (6). One side of the movable plate (9) is fixedly connected to the clamping sleeve (4).

3. A drill bit with a detachable structure according to claim 2, characterized in that: A dual-head servo motor (7) is fixedly installed between the two fixed plates (5). The output ends of the dual-head servo motor (7) extend to the outside of the two fixed plates (5) and are fixedly connected to the threaded rod (6).

4. A drill bit with a detachable structure according to claim 1, characterized in that: The drill bit body (14) is composed of a tungsten alloy drill bit (15), an expanding drill body (16), and a flat drill body (17). The bottom end of the drill bit body (14) is the tungsten alloy drill bit (15), and the outer side of the tungsten alloy drill bit (15) is provided with a cutting edge. The flat drill body (17) is fixedly connected to the bottom of the fixing plate (5), and the expanding drill body (16) is fixedly connected between the tungsten alloy drill bit (15) and the flat drill body (17).

5. A drill bit with a detachable structure according to claim 1, characterized in that: The top of the fixed plate (3) has two limiting grooves (10), and a sliding plate (11) is slidably connected between the inner walls of the limiting grooves (10). The top of the sliding plate (11) is fixedly connected to the clamping sleeve (4).

6. A drill bit with a detachable structure according to claim 1, characterized in that: A control button (8) is fixedly installed on the outside of the fixed plate (3), and a transparent protective shell (12) is provided on the outside of the control button (8).

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