CN214659965U

CN214659965U - Automatic reducing drill bit for coal mine

Info

Publication number: CN214659965U
Application number: CN202120435084.7U
Authority: CN
Inventors: 张四海
Original assignee: Hebei Jimei Machinery Manufacturing Co ltd
Current assignee: Hebei Jimei Machinery Manufacturing Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-11-09
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to the technical field of coal mines, in particular to an automatic reducing drill bit for coal mines, which comprises a drill bit, wherein the top end of the inner side of the drill bit is fixedly connected with a motor, the end of a main shaft of the motor is fixedly connected with a threaded shaft, the threaded shaft is rotationally connected with the drill bit, the outer side of the threaded shaft is spirally connected with a slide block, the slide block is slidably connected with the drill bit, the bottom end of the outer side of the slide block is rotationally connected with a rotating rod through a rotating shaft, the other end of the rotating rod is rotationally connected with a support rod through a rotating shaft, and the support rod is rotationally connected with the drill bit through a rotating shaft. The operation is simple and convenient, and the time and the labor are saved.

Description

Automatic reducing drill bit for coal mine

Technical Field

The utility model relates to a colliery technical field specifically is an automatic reducing drill bit is used in colliery.

Background

The coal mine is an area where people mine coal resources in a coal-rich mining area, and is generally divided into a mineworker coal mine and an opencast coal mine, when a coal bed is far away from the ground surface, coal is generally selected to dig a tunnel to the underground, the mineworker coal mine is the mineworker coal mine, when the coal bed is very close to the ground surface, the direct stripping of the surface soil layer is generally selected to dig the coal, the opencast coal mine is the opencast coal mine, most coal mines in China belong to the mineworker coal mine, the coal mine range comprises large areas of the ground, the underground and related facilities, the coal mine is a reasonable space which is excavated by people when digging geological strata rich in the coal, the coal mine generally comprises the tunnel, the underground, a digging surface and the like, the coal is the most main solid fuel, is one of combustible organic rock, is formed by flourishing plants growing in a certain geological age, gradually forming a thick layer in a proper geological environment, is buried in the water bottom or silt and is subjected to the natural coal effect of the long geological age, with the increasing application of coal mining, some auxiliary tools for coal mines are increased continuously, but when some automatic reducing drill bits for coal mines are used, the automatic reducing drill bits are inconvenient to replace when a drill hole is partially worn, and the operation is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic reducing drill bit is used in colliery to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an automatic reducing drill bit for coal mines comprises a drill bit, wherein a motor is fixedly connected to the top end of the inner side of the drill bit, a threaded shaft is fixedly connected to the end of a main shaft of the motor, the threaded shaft is rotatably connected with the drill bit, a sliding block is spirally connected to the outer side of the threaded shaft and is slidably connected with the drill bit, a rotating rod is rotatably connected to the bottom end of the outer side of the sliding block through a rotating shaft, a supporting rod is rotatably connected to the other end of the rotating rod through a rotating shaft and is rotatably connected with the drill bit through a rotating shaft, a wear-resistant block is slidably connected to the outer side of the supporting rod, a fixed block is fixedly connected to the outer side of the wear-resistant block and penetrates through the supporting rod, the fixed block is slidably connected with the supporting rod, a spring is fixedly connected to the inner side of the supporting rod, a pushing block is fixedly connected to the other end of the spring and penetrates through the supporting rod, and a clamping block is fixedly connected to the outer side of the push block.

Preferably, the fixture block penetrates through the support rod and the fixing block, the fixture block is connected with the support rod and the fixing block in a sliding mode, and the surface, close to the wear-resistant block, of the fixture block is arranged in an inclined plane.

Preferably, drill bit outside top is equipped with the fixed case, fixed case left side top intercommunication has the feed liquor pipe, and the inboard fixedly connected with valve of feed liquor pipe, the liquid outlet has been seted up to fixed bottom of the case portion, fixed bottom of the case portion is equipped with the drain pipe, and the drain pipe runs through the drill bit, drain pipe and drill bit fixed connection.

Preferably, the inner side of the fixed box is fixedly connected with a bearing, and the bearing is fixedly connected with the drill bit.

Preferably, the dwang is run through to the bottom of drain pipe, and drain pipe and dwang fixed connection, the through-hole has been seted up in the drain pipe outside, the drain pipe has 2, and the drain pipe symmetry sets up at the drill bit inboard.

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

1. in the utility model, through the arrangement of the fixture block and the wear-resistant layer, the arrangement is matched with the elasticity of the spring to the push block, the sliding connection of the fixture block and the fixed block and the sliding connection of the wear-resistant block and the support rod, when the device is used, when the drill hole is seriously worn and needs to be replaced, the push block is pushed to quickly replace the worn part, the operation is simple and convenient, and the time and the labor are saved;

2. the utility model discloses in, through bearing, drain pipe and the feed liquor pipe that sets up, this kind of fixed connection and bearing and fixed case and the fixed connection of drill bit of the intercommunication, drain pipe and the dwang of setting up fixed case and feed liquor pipe and drain pipe, drain pipe and dwang, during the use device, can carry out rapid cooling to the device and handle to the normal use of device has been guaranteed.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the schematic view of the mounting structure of the fixture block of the present invention.

In the figure: 1-drill bit, 2-motor, 3-threaded shaft, 4-slide block, 5-rotating rod, 6-supporting rod, 7-wear-resistant block, 8-fixed block, 9-spring, 10-push block, 11-fixture block, 12-fixed box, 13-bearing, 14-liquid inlet pipe and 15-liquid outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

an automatic reducing drill bit for coal mines comprises a drill bit 1, wherein the top end of the inner side of the drill bit 1 is fixedly connected with a motor 2, the tail end of a main shaft of the motor 2 is fixedly connected with a threaded shaft 3, the threaded shaft 3 is rotatably connected with the drill bit 1, the outer side of the threaded shaft 3 is spirally connected with a slide block 4, the slide block 4 is slidably connected with the drill bit 1, the bottom end of the outer side of the slide block 4 is rotatably connected with a rotating rod 5 through a rotating shaft, the other end of the rotating rod 5 is rotatably connected with a support rod 6 through a rotating shaft, the support rod 6 is rotatably connected with the drill bit 1 through a rotating shaft, the outer side of the support rod 6 is slidably connected with a wear-resistant block 7, the outer side of the wear-resistant block 7 is fixedly connected with a fixed block 8, the fixed block 8 penetrates through the support rod 6, the inner side of the support rod 6 is fixedly connected with a spring 9, the other end of the spring 9 is fixedly connected with a push block 10, the push block 10 penetrates through the support rod 6, the push block 10 is slidably connected with the support rod 6, a clamping block 11 is fixedly connected to the outer side of the pushing block 10.

The fixture block 11 penetrates through the support rod 6 and the fixed block 8, the fixture block 11 is connected with the support rod 6 and the fixed block 8 in a sliding manner, the fixture block 11 is arranged close to the wear-resistant block 7 and is in an inclined plane, the wear-resistant block 7 is convenient to mount quickly, the fixed box 12 is arranged at the top end of the outer side of the drill bit 1, the liquid inlet pipe 14 is communicated with the top end of the left side of the fixed box 12, the inner side of the liquid inlet pipe 14 is fixedly connected with a valve, the bottom end of the fixed box 12 is provided with a liquid outlet pipe 15, the liquid outlet pipe 15 penetrates through the drill bit 1, the liquid outlet pipe 15 is fixedly connected with the drill bit 1, the arrangement is convenient for carrying out quick cooling treatment on the device, so that the normal use of the device is ensured, the bearing 13 is fixedly connected with the inner side of the fixed box 12, the bearing 13 is fixedly connected with the drill bit 1, the arrangement ensures the normal rotation of the drill bit 1, ensures the normal cooling of the device, the bottom end of the liquid outlet pipe 15 penetrates through the rotating rod 5, and drain pipe 15 and dwang 5 fixed connection, the through-hole has been seted up in the 15 outsides of drain pipe, and drain pipe 15 has 2, and the 15 symmetry of drain pipe set up in 1 inboards of drill bit, and this kind of setting makes the cooling effect of device better.

The working process is as follows: all electrical appliances in the device are external power supplies, when the device is used, the drill bit 1 is installed at the used position, then the liquid inlet pipe 14 is communicated with an external coolant pump, the device is used, when the drilling size needs to be adjusted, the control motor 2 drives the threaded shaft 3 to rotate positively and negatively, at the same time, the slide block 4 can move up and down, the rotating rod 5 and the support rod 6 can both rotate, at the same time, the drill bit 1 drives the wear-resistant block 7 on the outer side of the support rod 6 to drill, meanwhile, the bearing 13 can continuously rotate, at the same time, the external coolant can be sprayed to the drill bit 1 through the liquid inlet pipe 14, the fixed box 12 and the liquid outlet pipe 15, so that the cooling of the device is realized, the normal use of the device is ensured, when the wear-resistant block 7 is seriously worn and needs to be replaced, the support rod 6 is firstly controlled to rotate to the maximum angle, and then the push block 10 is pushed to compress the spring 9, when the clamping block 11 is separated from the fixed block 8, the wear-resistant block 7 is taken down and replaced, and the operation is simple and convenient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic reducing drill bit for coal mine, includes drill bit (1), its characterized in that: the drill bit is characterized in that a motor (2) is fixedly connected to the top end of the inner side of the drill bit (1), a threaded shaft (3) is fixedly connected to the tail end of a main shaft of the motor (2), the threaded shaft (3) is rotatably connected with the drill bit (1), a sliding block (4) is spirally connected to the outer side of the threaded shaft (3), the sliding block (4) is slidably connected with the drill bit (1), a rotating rod (5) is rotatably connected to the outer side bottom end of the sliding block (4) through a rotating shaft, a supporting rod (6) is rotatably connected to the other end of the rotating rod (5) through a rotating shaft, the supporting rod (6) is rotatably connected with the drill bit (1) through a rotating shaft, a wear-resistant block (7) is slidably connected to the outer side of the supporting rod (6), a fixed block (8) is fixedly connected to the outer side of the wear-resistant block (7), the fixed block (8) penetrates through the supporting rod (6), and the fixed block (8) is slidably connected with the supporting rod (6), the utility model discloses a bracing piece, including bracing piece (6), bracing piece (6) inboard fixedly connected with spring (9), the other end fixedly connected with ejector pad (10) of spring (9), and ejector pad (10) run through bracing piece (6), ejector pad (10) and bracing piece (6) sliding connection, ejector pad (10) outside fixedly connected with fixture block (11).

2. The automatic reducing drill bit for coal mines as set forth in claim 1, wherein: the clamping block (11) penetrates through the supporting rod (6) and the fixing block (8), the clamping block (11) is connected with the supporting rod (6) and the fixing block (8) in a sliding mode, and the surface, close to the wear-resistant block (7), of the clamping block (11) is arranged in an inclined plane.

3. The automatic reducing drill bit for coal mines as set forth in claim 1, wherein: drill bit (1) outside top is equipped with fixed case (12), fixed case (12) left side top intercommunication has feed liquor pipe (14), and feed liquor pipe (14) inboard fixedly connected with valve, the liquid outlet has been seted up to fixed case (12) bottom, fixed case (12) bottom is equipped with drain pipe (15), and drain pipe (15) run through drill bit (1), drain pipe (15) and drill bit (1) fixed connection.

4. The automatic reducing drill bit for coal mines as set forth in claim 3, wherein: the inner side of the fixed box (12) is fixedly connected with a bearing (13), and the bearing (13) is fixedly connected with the drill bit (1).

5. The automatic reducing drill bit for coal mines as set forth in claim 3, wherein: dwang (5) are run through to the bottom of drain pipe (15), and drain pipe (15) and dwang (5) fixed connection, the through-hole has been seted up in the drain pipe (15) outside, drain pipe (15) have 2, and drain pipe (15) symmetry sets up at drill bit (1) inboardly.