CN220081320U

CN220081320U - Combined drill bit for coal mining engineering

Info

Publication number: CN220081320U
Application number: CN202321159845.6U
Authority: CN
Inventors: 罗鹏飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-15
Filing date: 2023-05-15
Publication date: 2023-11-24
Anticipated expiration: 2033-05-15

Abstract

The utility model provides a combined drill bit for coal mining engineering, which comprises: a mounting frame; the front side and the rear side of the rotating frame are rotationally connected to the inner side of the mounting frame; the limiting assembly is fixedly connected to the front face of the mounting frame on the back face of the limiting assembly and comprises a sliding sleeve, the back face of the sliding sleeve is fixedly connected to the front face of the mounting frame, and a limiting rod is slidably connected to the inner wall of the sliding sleeve. The utility model provides a combined drill bit for coal mining engineering, which is characterized in that the connection between a mounting frame and a rotating frame is canceled through the movement of a limiting rod, and then the rotating frame is rotated by 90 degrees, so that a drill bit body can be replaced, the mounting frame and the rotating frame are connected again through the limiting rod after rotation, the combined drill bit is simple and practical in structure, the drill bit body is very convenient to replace and use, and the stability of the drill bit body in working is higher.

Description

Combined drill bit for coal mining engineering

Technical Field

The utility model relates to the field of coal mining, in particular to a combined drill bit for coal mining engineering.

Background

Coal mines are areas where mankind is mining coal resources in coal-rich mining areas, and are generally classified into underground coal mines and open pit coal mines. When the coal seam is far from the ground surface, coal is generally selected to be excavated into an underground excavation roadway, which is an underground coal mine, and when the coal seam is very close to the ground surface, the ground surface soil layer is generally selected to be directly stripped to excavate the coal, which is an open pit coal mine.

The drill bit is one of important tools for mining, the drill bit is a main tool for breaking rock in the drilling process of coal mines, the well bore is formed by breaking rock by the drill bit, and reasonable selection of the drill bit plays an important role in improving drilling speed and reducing comprehensive drilling cost. In the construction of coal mines, multiple types of drill bits are needed to be matched.

In the related art, a drill bit is required to crush rock during mining of a coal mine. Application number: CN202221336012.8 discloses a combined drill bit for coal mining engineering, which is used by starting a motor for driving the lowermost drill bit to rotate through a control switch, so that the drill bit is conveniently and rapidly converted, and the construction efficiency is improved. The rotation of the device drill bit relies on the motor to lead to when smashing ground rock soil, outer loop frame can take place the displacement, and outer loop frame's removal leads to the drill bit also can take place the removal, thereby leads to the user to be inconvenient for controlling the working position of drill bit.

Therefore, it is necessary to provide a combined drill bit for coal mining engineering to solve the above technical problems.

Disclosure of Invention

The utility model provides a combined drill bit for coal mining engineering, which solves the problem that the prior part of combined drill bit is inconvenient to stably fix the working position of the drill bit when in use in the related technology.

In order to solve the technical problems, the utility model provides a combined drill bit for coal mining engineering, which comprises: a mounting frame;

the front side and the rear side of the rotating frame are rotationally connected to the inner side of the mounting frame;

the limiting assembly is fixedly connected to the front face of the mounting frame, the limiting assembly comprises a sliding sleeve, the back face of the sliding sleeve is fixedly connected to the front face of the mounting frame, the inner wall of the sliding sleeve is slidably connected with a limiting rod, the circumferential side face of the limiting rod is fixedly connected with a limiting ring, and the circumferential side face of the limiting rod is sleeved with a spring and located on the front side of the limiting ring.

Preferably, the back of gag lever post runs through the front of mounting bracket and the front of rotating turret in proper order and extends to the inside of rotating turret, the week side of gag lever post and the inboard sliding connection of mounting bracket and rotating turret, the positive fixedly connected with pull ring of gag lever post.

Preferably, the inner side of the rotating frame is fixedly connected with a placing box, and the top of the inner wall of the placing box is fixedly connected with a motor.

Preferably, the output shaft of the motor penetrates through the bottom of the inner wall of the placement box and the inner side of the rotating frame in sequence and extends to the outer portion of the rotating frame, and the output shaft of the motor is fixedly connected with the drill bit body.

Preferably, the top fixedly connected with link of rotating turret, the front of link and the equal fixedly connected with handle in back, two the all cover of the week side of handle is equipped with the buffer sleeve.

Preferably, a switch button is arranged on the front surface of the connecting frame.

Compared with the related art, the combined drill bit for the coal mining engineering has the following beneficial effects:

the utility model provides a combined drill bit for coal mining engineering, which is characterized in that the connection between a mounting frame and a rotating frame is canceled through the movement of a limiting rod, and then the rotating frame is rotated by 90 degrees, so that a drill bit body can be replaced, the mounting frame and the rotating frame are connected again through the limiting rod after rotation, the combined drill bit is simple and practical in structure, the drill bit body is very convenient to replace and use, and the stability of the drill bit body in working is higher.

Drawings

FIG. 1 is a schematic view of a combined drill bit for coal mining engineering according to a preferred embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the area A shown in FIG. 1;

fig. 3 is a schematic structural view of the sliding sleeve of fig. 2 in a left-hand cross-sectional view.

Reference numerals in the drawings: 1. a mounting frame; 2. a rotating frame; 3. a limit component; 31. a sliding sleeve; 32. a limit rod; 33. a limiting ring; 34. a spring; 35. a pull ring; 4. placing a box; 5. a motor; 6. a bit body; 7. a connecting frame; 8. a handle; 9. a buffer sleeve; 10. a switch button.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a combined drill bit for coal mining engineering according to the present utility model; FIG. 2 is an enlarged schematic view of the structure of the area A shown in FIG. 1; FIG. 3 is a schematic structural view of the sliding sleeve of FIG. 2 in left-hand cross-section, a combination drill bit for coal mining projects, comprising: a mounting frame 1;

the rotating frame 2, the front side and the rear side of the rotating frame 2 are rotatably connected to the inner side of the mounting frame 1;

the limiting component 3, the back fixed connection of limiting component 3 is in the front of mounting bracket 1, and limiting component 3 includes sliding sleeve 31, and sliding sleeve 31's back fixed connection is in the front of mounting bracket 1, and sliding sleeve 31's inner wall sliding connection has gag lever post 32, and the week side of gag lever post 32 just is located sliding sleeve 31's inboard fixedly connected with spacing ring 33, and the front side cover that the week side of gag lever post 32 just is located spacing ring 33 is equipped with spring 34.

The back of gag lever post 32 runs through the front of mounting bracket 1 and the front of rotating frame 2 in proper order and extends to the inside of rotating frame 2, and the week side of gag lever post 32 and the inboard sliding connection of mounting bracket 1 and rotating frame 2, the positive fixedly connected with pull ring 35 of gag lever post 32, the groove that uses with gag lever post 32 cooperation is all offered to the inboard of mounting bracket 1 and rotating frame 2, can provide gag lever post 32 and slide about.

The inboard fixedly connected with of rotating turret 2 places case 4, places the top fixedly connected with motor 5 of case 4 inner wall, and motor 5 is three-phase asynchronous machine, and external has the power.

The output shaft of motor 5 runs through the bottom of placing case 4 inner wall and the inboard of rotating turret 2 in proper order and extends to the outside of rotating turret 2, and the output shaft fixedly connected with drill bit body 6 of motor 5, drill bit body 6 are provided with four groups.

The top fixedly connected with link 7 of rotating turret 2, the front and the equal fixedly connected with handle 8 in back of link 7, the all cover of the week side of two handles 8 is equipped with buffer cover 9, and buffer cover 9 is the rubber material.

The front face of the connecting frame 7 is provided with a switch button 10.

The utility model provides a combined drill bit for coal mining engineering, which has the following working principle:

in use, the handle 8 is held by hand and the power is turned on

The machine 5 drives the drill bit body 6 to rotate through the rotation of the motor 5, so that the rock is crushed, the pull ring 35 is pulled forwards, the limiting rod 32 is driven to move forwards through the movement of the pull ring 35, the limiting ring 33 is driven to move forwards through the movement of the limiting rod 32, the spring 34 is contracted, the connection between the mounting frame 1 and the rotating frame 2 is canceled through the movement of the limiting rod 32, then the rotating frame 2 is rotated by 90 degrees, the drill bit body 6 can be replaced, and the mounting frame 1 and the rotating frame 2 are connected again through the limiting rod 32 after rotation.

the installation frame 1 and the rotating frame 2 are canceled through the movement of the limiting rod 32, then the rotating frame 2 is rotated by 90 degrees, so that the drill bit body 6 can be replaced, the installation frame 1 and the rotating frame 2 are connected again through the limiting rod 32 after rotation, the structure is simple and practical, the drill bit body 6 is convenient to replace and use, and the stability of the drill bit body 6 during operation is high.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A combination drill bit for coal mining engineering, comprising: a mounting frame (1);

the front side and the rear side of the rotating frame (2) are rotatably connected to the inner side of the mounting frame (1);

spacing subassembly (3), the back fixed connection of spacing subassembly (3) is in the front of mounting bracket (1), spacing subassembly (3) are including sliding sleeve (31), the back fixed connection of sliding sleeve (31) is in the front of mounting bracket (1), the inner wall sliding connection of sliding sleeve (31) has gag lever post (32), the medial surface of gag lever post (32) just is located the inboard fixedly connected with spacing ring (33) of sliding sleeve (31), the medial surface of gag lever post (32) just is located the front side cover of spacing ring (33) and is equipped with spring (34).

2. The combined drill bit for coal mining engineering according to claim 1, wherein the back of the limiting rod (32) sequentially penetrates through the front of the mounting frame (1) and the front of the rotating frame (2) and extends to the inside of the rotating frame (2), the peripheral side of the limiting rod (32) is in sliding connection with the inner sides of the mounting frame (1) and the rotating frame (2), and a pull ring (35) is fixedly connected to the front of the limiting rod (32).

3. The combined drill bit for coal mining engineering according to claim 1, wherein a placement box (4) is fixedly connected to the inner side of the rotating frame (2), and a motor (5) is fixedly connected to the top of the inner wall of the placement box (4).

4. A combined drill bit for coal mining engineering according to claim 3, characterized in that the output shaft of the motor (5) sequentially penetrates through the bottom of the inner wall of the placement box (4) and the inner side of the rotating frame (2) and extends to the outside of the rotating frame (2), and the output shaft of the motor (5) is fixedly connected with the drill bit body (6).

5. The combined drill bit for coal mining engineering according to claim 1, wherein a connecting frame (7) is fixedly connected to the top of the rotating frame (2), handles (8) are fixedly connected to the front face and the back face of the connecting frame (7), and buffer sleeves (9) are sleeved on the peripheral side faces of the two handles (8).

6. The combination drill bit for coal mining engineering according to claim 5, characterized in that a switch button (10) is provided on the front face of the connecting frame (7).