Replaceable drill bit structure for coal mine deep hole drill carriage

Abstract

The utility model relates to the technical field of drill bit connection of coal mine deep hole drill carriages, and discloses a replaceable drill bit structure for a coal mine deep hole drill carriage, which comprises a drill rod body and a drill bit, an outer groove is arranged on the outer side of the lower end of the drill rod body, and an inner groove is arranged inside the lower end of the drill rod body; a sliding groove is formed in the side wall of the interior of the inner groove, the upper end of the drill bit is connected with the interior of the inner groove in an inserted mode, a sliding block is fixedly connected to the outer wall of the upper end of the drill bit, the outer side of the sliding block is slidably connected with the interior of the sliding groove, a first groove chamber is formed in the top of the interior of the inner groove, and a first magnetic block is installed in the first groove chamber. A second groove chamber is formed in the upper end of the drill bit, and a second magnetic block is installed in the second groove chamber. According to the replaceable drill bit structure for the coal mine deep hole drill carriage, the drill bit can be effectively disassembled and replaced, the whole disassembly and assembly process can be operated by one person, and manpower investment is saved while the disassembly and assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine deep hole drilling rig drill bit connection technical field, concretely is a kind of replaceable drill bit structure for coal mine deep hole drilling rig. BACKGROUND

[0002] Coal mine deep hole drilling rig is a kind of equipment specially used for coal mine deep hole drilling, mainly used for drilling operation in coal mine, it has the advantages of large drilling depth, high drilling precision, high work efficiency, can satisfy the drilling demand in coal mine, and currently, with the continuous development of electrification and intelligent technology, coal mine deep hole drilling rig gradually develops towards electrification and intelligence, realizes more efficient and more intelligent operation mode, improves work efficiency and safety.

[0003] The existing drill rod drill bit connection mode is mostly connected by bolt connection, sleeve type connection and magnetic type connection, and the three connection modes have certain defects, bolt connection and sleeve type connection need to be matched by multiple people to realize drill bit connection, which is time-consuming and laborious, and magnetic type connection is simply realized by magnetic force, although it is convenient to install, but the magnetic force size cannot be adapted according to the torque size, so that the situation of falling off is prone to occur.

[0004] Therefore, it is necessary to provide a replaceable drill bit structure for coal mine deep hole drilling rig. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a replaceable drill bit structure for coal mine deep hole drilling rig, which has the advantages of convenient drill bit replacement, time and labor saving, and solves the problems raised in the background art.

[0006] The utility model provides the following technical scheme: a replaceable drill bit structure for coal mine deep hole drilling rig, including drill rod body and drill bit:

[0007] The lower end outside of the drill rod body is provided with an outer groove, and the lower end inside of the drill rod body is provided with an inner groove;

[0008] The inner side wall of the inner groove is provided with a sliding groove, the upper end of the drill bit is inserted into the inner groove, the upper end outer wall of the drill bit is fixedly connected with a sliding block, the outer side of the sliding block is slidably connected with the inner side of the sliding groove, the inner top of the inner groove is provided with a groove chamber one, the inner side of the groove chamber one is provided with a magnetic block one, the inner side of the upper end of the drill bit is provided with a groove chamber two, the inner side of the groove chamber two is provided with a magnetic block two, and the magnetic block two and the magnetic block one are mutually adsorbed.

[0009] Preferably, the outer surface of the outer groove is threadedly connected with an annular sleeve, the outer side of the annular sleeve is provided with a connecting hole three, the upper end of the drill bit is provided with a connecting hole two, the side wall of the outer groove is provided with a connecting hole one, and the connecting hole two, the connecting hole three and the connecting hole one are threadedly connected with a connecting bolt.

[0010] Preferably, the sliding groove and the sliding block are provided with four groups, and the four groups of sliding grooves are arranged around the center line of the inner groove, and the four groups of sliding blocks are arranged around the center line of the drill bit.

[0011] Preferably, the inner size of the inner groove is consistent with the outer size of the drill bit insertion end.

[0012] Preferably, the height of the annular sleeve is consistent with the height of the outer side of the outer groove.

[0013] Preferably, the connecting hole one, the connecting hole two and the connecting hole three are consistent in size, and the connecting hole one, the connecting hole two and the connecting hole three are arranged coincidentally.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The replaceable drill bit structure for the coal mine deep hole drilling vehicle is connected with the outer surface of the outer groove through a threaded connection mode when being installed, at this time, the drill bit is connected in a matched mode according to the sliding block connected at the end of the drill bit and the sliding groove provided in the inner groove, the end of the drill bit is limited to be inserted into the inner part of the inner groove, at this time, the magnetic block one and the magnetic block two are adsorbed together, after assembly, the connecting hole one provided on the outer groove, the connecting hole two provided on the drill bit and the connecting hole three provided on the annular sleeve are coincident, the connecting bolt is threadedly connected into the connecting hole three, the connecting hole one and the connecting hole two, and the installation of the drill bit is completed, when being disassembled, the connecting bolt is taken out, and the drill bit can be disassembled, the setting of the structure can effectively disassemble and replace the drill bit, one person can operate during the whole disassembly and assembly process, the labor input is saved while the disassembly and assembly efficiency is improved, and the disassembly and assembly structure is simple, and personnel can operate conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used for the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating labor.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model device;

[0018] Figure 2The utility model discloses a drill rod body, drill bit and annular sleeve dispersed structure schematic diagram.

[0019] Figure 3 The utility model discloses Figure 1 Sectional structure schematic diagram.

[0020] In the drawing, the component list that each sign represents is as follows:

[0021] 1, drill rod body;110, outer groove;120, inner groove;130, sliding groove;140, connecting hole one;150, chamber one;151, magnetic block one;

[0022] 2, drill bit;210, connecting hole two;220, sliding block;230, chamber two;231, magnetic block two;

[0023] 3, annular sleeve;310, connecting hole three;320, connecting bolt. Specific implementation

[0024] The technical scheme in the embodiment of the utility model will be clearly and completely described below with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the protection scope of the utility model.

[0025] Please refer to Figure 1 、 Figure 2 And Figure 3 A replaceable drill bit structure for coal mine deep hole drilling rig, including drill rod body 1 and drill bit 2:

[0026] The lower end of drill rod body 1 is provided with outer groove 110, and the inside of the lower end of drill rod body 1 is provided with inner groove 120;

[0027] The inner side wall of inner groove 120 is provided with sliding groove 130, the upper end of drill bit 2 is inserted into the inside of inner groove 120, the upper end of drill bit 2 is fixedly connected with sliding block 220, the outer side of sliding block 220 is slidably connected with the inside of sliding groove 130, the inside of the top of inner groove 120 is provided with chamber one 150, magnetic block one 151 is installed in the inside of chamber one 150, the inside of the upper end of drill bit 2 is provided with chamber two 230, magnetic block two 231 is installed in the inside of chamber two 230, magnetic block two 231 and magnetic block one 151 are mutually adsorbed, the outer surface of outer groove 110 is threadedly connected with annular sleeve 3, the outer side of annular sleeve 3 is provided with connecting hole three 310, the outer surface of the upper end of drill bit 2 is provided with connecting hole two 210, the side wall of outer groove 110 is provided with connecting hole one 140, connecting hole two 210, connecting hole three 310 and connecting hole one 140 are threadedly connected with connecting bolt 320 in the inside.

[0028] When installing, the annular sleeve 3 is connected to the outer surface of the outer groove 110 by threaded connection, at this time, the drill bit 2 is connected according to the sliding block 220 connected at the end of the drill bit 2 and the sliding groove 130 opened in the inner groove 120, the end of the drill bit 2 is limited to be inserted into the inner groove 120, at this time, the magnetic block one 151 and the magnetic block two 231 are adsorbed together, after assembly is completed, the connecting hole one 140 opened on the outer groove 110, the connecting hole two 210 opened on the drill bit 2 and the connecting hole three 310 opened on the annular sleeve 3 are coincided, the connecting bolt 320 is threaded into the inside of the connecting hole three 310, the connecting hole one 140 and the connecting hole two 210, and the installation of the drill bit 2 is completed;

[0029] When disassembling, the connecting bolt 320 is taken out, and the drill bit 2 can be disassembled.

[0030] As a preferred technical scheme of the utility model, the sliding groove 130 and the sliding block 220 are provided with four groups, and the four groups of sliding grooves 130 are arranged around the center line of the inner groove 120, and the four groups of sliding blocks 220 are arranged around the center line of the drill bit 2, and the inner size of the sliding groove 130 is consistent with the outer size of the sliding block 220.

[0031] As a preferred technical scheme of the utility model, the inner size of the inner groove 120 is consistent with the outer size of the inserted end of the drill bit 2.

[0032] As a preferred technical scheme of the utility model, the height of the annular sleeve 3 is consistent with the height of the outer side of the outer groove 110.

[0033] As a preferred technical scheme of the utility model, the inner size of the connecting hole one 140, the connecting hole two 210 and the connecting hole three 310 is consistent, and the connecting hole one 140, the connecting hole two 210 and the connecting hole three 310 are coincided.

[0034] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0035] In the utility model, unless another definite provision and limitation, the term "installation", "arrangement", "connection", "fixation", "screw connection" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation, for the ordinary skill of the art, can understand the above-mentioned term in the utility model specific meaning according to specific circumstances.

[0036] Although the embodiments of the utility model have been shown and described, it will be appreciated by those of ordinary skill in the art that various changes, modifications, alternatives, and variations 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 replaceable drill bit structure for a deep-hole drilling rig in coal mines, comprising a drill rod body (1) and a drill bit (2), characterized in that: The lower end of the drill rod body (1) is provided with an outer groove (110) and the lower end of the drill rod body (1) is provided with an inner groove (120). The inner sidewall of the inner groove (120) is provided with a sliding groove (130). The upper end of the drill bit (2) is inserted into the inner groove (120). A slider (220) is fixedly connected to the outer wall of the upper end of the drill bit (2). The outer side of the slider (220) is slidably connected to the inner groove (130). A first chamber (150) is provided at the top of the inner groove (120). A magnetic block (151) is installed inside the first chamber (150). A second chamber (230) is provided inside the upper end of the drill bit (2). A second magnetic block (231) is installed inside the second chamber (230). The second magnetic block (231) and the first magnetic block (151) attract each other.

2. The replaceable drill bit structure for a deep-hole drilling rig in a coal mine according to claim 1, characterized in that: The outer surface of the outer groove (110) is threaded with an annular sleeve (3), and a connecting hole three (310) is provided on the outer side of the annular sleeve (3). A connecting hole two (210) is provided on the upper outer surface of the drill bit (2). A connecting hole one (140) is provided on the side wall of the outer groove (110). A connecting bolt (320) is threaded inside the connecting hole two (210), the connecting hole three (310) and the connecting hole one (140).

3. The replaceable drill bit structure for a deep-hole drilling rig in a coal mine according to claim 1, characterized in that: The slide groove (130) and the slider (220) are each provided in four sets, and the four sets of slide grooves (130) are arranged around the center line of the inner groove (120), and the four sets of sliders (220) are arranged around the center line of the drill bit (2). The internal size of the slide groove (130) is the same as the external size of the slider (220).

4. The replaceable drill bit structure for a deep-hole drilling rig in a coal mine according to claim 1, characterized in that: The internal size of the inner groove (120) is the same as the external size of the drill bit (2) insertion end.

5. The replaceable drill bit structure for a deep-hole drilling rig in a coal mine according to claim 2, characterized in that: The height of the annular sleeve (3) is the same as the height of the outer side of the outer groove (110).

6. The replaceable drill bit structure for a deep-hole drilling rig in a coal mine according to claim 2, characterized in that: The internal size of the first connecting hole (140), the second connecting hole (210), and the third connecting hole (310) is the same, and the first connecting hole (140), the second connecting hole (210), and the third connecting hole (310) are arranged to overlap.

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