Self-adaptive telescopic arm structure suitable for coal mine roadway tunneling

Abstract

The utility model discloses a self-adaptive telescopic boom structure suitable for coal mine roadway tunneling, which relates to the technical field of coal mine roadway tunneling and comprises a telescopic boom body, a mounting frame is fixedly arranged on one side of the telescopic boom body, and connecting seats are rotatably connected to the inner wall of the top and the inner wall of the bottom of the mounting frame. A worm gear is rotatably connected to the outer wall of the bottom of the mounting frame, the worm gear and the connecting base are fixedly arranged, a mounting shell is fixedly connected to the bottom of the mounting frame, worms are rotatably connected to the inner walls of the two sides of the mounting shell, and the worms are meshed with the worm gear; and a driving motor is fixedly connected to the outer wall of one side of the mounting shell, an output shaft of the driving motor and the worm are fixedly arranged, and a cutter is fixedly arranged on one side of the connecting base. The side wall surface of a roadway can be rapidly corrected, a worker does not need to hold the breaking hammer by hand for subsequent machining, and then the tunneling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine roadway tunneling, especially to a self -adaptation telescopic arm structure suitable for coal mine roadway tunneling. BACKGROUND

[0002] Coal mine roadway tunneling is the work of excavating various shapes, cross sections or longitudinal and transverse intersecting wells, lanes and rooms in coal seams or rock layers. Coal mine roadway tunneling usually uses a tunneling machine to cut and crush coal and rock bodies, has the advantages of fast tunneling speed, high efficiency, regular roadway shaping, rock bodies free from blasting rupture, good construction quality, etc. The telescopic arm is one of the main structural components of the tunneling machine, usually has a cutter installed thereon for cutting and crushing coal and rock bodies. The telescopic arm can adjust the thrust force and telescopic amount of the telescopic arm in real time according to the geological hardness and resistance changes, so as to adapt to different tunneling scenes.

[0003] Patent No. CN219587576U discloses a telescopic arm of a tunneling machine. A hydraulic cylinder cooperates with a push block to push a telescopic pipe to move, so as to push the tunneling head to move. When the telescopic pipe moves, a connecting shaft slides in a connecting pipe. A motor drives the connecting pipe to rotate through the connecting shaft and the convex strip, so as to drive the tunneling head to rotate to crush rocks. The telescopic pipe is kept stable by the upper and lower slide rods. The overall structure is simple and convenient to operate. The protective cover can protect the motor and the hydraulic cylinder from falling rocks, has high safety and strong practicability. It comprises a fixed seat and a fixed box. The fixed box is fixedly arranged on the top of the fixed seat. It further comprises a telescopic tunneling mechanism, a driving mechanism, a stabilizing mechanism and a protection mechanism. The telescopic tunneling mechanism is arranged on the fixed box. The driving mechanism is arranged on the top of the fixed seat. The stabilizing mechanism is arranged in the fixed box. The protection mechanism is arranged on the top of the fixed seat.

[0004] However, similar to the above-mentioned self-adaptive telescopic arm structure suitable for coal mine roadway tunneling, it can only control the left and right swinging and forward and backward movement of the telescopic arm by the tunneling machine during use. If the roadway side wall surface needs to be corrected, a subsequent processing by a human using a breaking hammer is still needed. The whole construction process is complex and time-consuming, which reduces the construction efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a self-adaptive telescopic arm structure suitable for coal mine roadway tunneling.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model relates to a self -adaptation telescopic arm structure suitable for coal mine roadway excavation, including telescopic arm main part, one side of telescopic arm main part is fixedly arranged with mounting bracket, the top inner wall and bottom inner wall of mounting bracket are rotatably connected with connecting seat, the bottom outer wall of mounting bracket is rotatably connected with worm wheel, and the fixed setting between worm wheel and connecting seat, the bottom fixed connection of mounting bracket has installation casing, the both sides inner wall of installation casing is rotatably connected with worm, and worm is engaged with worm wheel, one side outer wall of installation casing is fixedly connected with drive motor, and the fixed setting between the output shaft of drive motor and worm, one side fixed setting of connecting seat has cutter.

[0008] The utility model further sets up, both sides of mounting bracket rotatably set up baffle, and the baffle is of folding type.

[0009] The utility model further sets up, one side of baffle is provided with connecting socket, and the inner wall insertion of connecting socket has connecting plug rod, and the fixed setting between connecting plug rod and mounting bracket.

[0010] The utility model further sets up, and the section of connecting plug rod and connecting socket is three -quarters circle.

[0011] The utility model further sets up, and one side of telescopic arm main part is fixedly provided with two mounting plates, and vibration spring is arranged between mounting plate and baffle.

[0012] The utility model further sets up, and the top fixed setting of baffle has hook, and the connection between hook and vibration spring.

[0013] The utility model further sets up, and the top fixed setting of mounting bracket has guide plate, and the section of guide plate is triangle.

[0014] The utility model further sets up, and both ends of telescopic arm main part are fixedly provided with side cover, and the top inner wall of side cover is provided with telescopic rod.

[0015] The utility model has the advantages of:

[0016] 1、 the self -adaptation telescopic arm structure suitable for coal mine roadway excavation makes, through the drive telescopic arm movement of excavator, thereby drives cutter to carry out roadway excavation work, when needing to correct the side wall of roadway, can drive the rotation of worm through drive motor drive worm, drives the rotation of worm wheel through worm, and then drives connecting seat to carry out angular deviation, makes connecting seat rotate ninety degrees, thereby can quickly correct the side wall of roadway, need not that staff holds the subsequent processing of breaker hammer, and then increases the excavation efficiency.

[0017] 2、The self-adapting telescopic arm structure suitable for coal mine tunneling can protect the inner walls of the connecting seat and the mounting frame through the baffle, effectively prevents falling rocks from damaging the connecting seat, and simultaneously, through the vibration spring, the baffle is vibrated, buffering is facilitated, and the service life of the baffle is prolonged.

[0018] 3、The self-adapting telescopic arm structure suitable for coal mine tunneling can quickly install and dismount the baffle by separating the spring from the hook through the connecting socket and the connecting plug rod when the baffle needs to be replaced, and the baffle can be rotated through the connecting socket and the connecting plug rod in the form of three-quarters of a circle, and the rotation of the connecting seat is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A first perspective view of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0020] Figure 2 A second perspective view of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0021] Figure 3 A local perspective view of the worm gear and the worm of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0022] Figure 4 A local perspective view of the baffle and the mounting frame of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0023] Figure 5 A local side view of the connecting socket and the connecting plug rod of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0024] Figure 6 A local side view of the baffle and the hook of the self-adapting telescopic arm structure suitable for coal mine tunneling is provided.

[0025] In the figure: 1, telescopic arm body; 2, side cover; 3, telescopic rod; 4, connecting seat; 5, cutter; 6, driving motor; 7, mounting shell; 8, mounting plate; 9, vibration spring; 10, baffle; 11, worm; 12, worm gear; 13, flow guide plate; 14, mounting frame; 15, connecting socket; 16, connecting plug rod; 17, hook. DETAILED DESCRIPTION

[0026] The technical solutions of the patent will be further described in detail in combination with specific implementation manners.

[0027] Embodiments of the present patent are described below in detail with reference to examples illustrated in the accompanying drawings, wherein the same or similar elements or elements having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are only used to explain the present patent, and cannot be understood as a limitation on the present patent.

[0028] In the description of the present patent, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present patent.

[0029] In the description of the present patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0030] Referring to Figures 1-3 A self-adapting telescopic arm structure suitable for coal mine tunneling, comprising a telescopic arm body 1, a mounting rack 14 is fixedly arranged on one side of the telescopic arm body 1, a connecting seat 4 is rotatably connected to the top inner wall and the bottom inner wall of the mounting rack 14, a worm gear 12 is rotatably connected to the bottom outer wall of the mounting rack 14, and the worm gear 12 is fixedly arranged between the connecting seat 4, a mounting shell 7 is fixedly connected to the bottom of the mounting rack 14, a worm 11 is rotatably connected to the inner wall of the mounting shell 7 on both sides, the worm 11 is engaged with the worm gear 12, a drive motor 6 is fixedly connected to the outer wall of one side of the mounting shell 7, and the output shaft of the drive motor 6 is fixedly arranged between the worm 11, a cutter 5 is fixedly arranged on one side of the connecting seat 4, side covers 2 are fixedly arranged at both ends of the telescopic arm body 1, a telescopic rod 3 is arranged on the top inner wall of the side cover 2, and the telescopic arm body 1 is adjusted up and down by the telescopic rod 3. Here, the telescopic arm body 1 and the cutter 5 are prior art, and will not be described further.

[0031] Referring to Figures 3 to 5Both sides of the mounting frame 14 are rotatably provided with the baffle 10, the baffle 10 is folded, through the folded baffle 10, the influence of the falling rock on the connecting seat 4 can be effectively prevented; one side of the baffle 10 is provided with a connecting socket 15, the inner wall of the connecting socket 15 is inserted with a connecting plug 16, the connecting plug 16 is fixedly arranged between the connecting socket 15 and the mounting frame 14, through the connecting socket 15 and the connecting plug 16, the baffle 10 can be conveniently installed and disassembled; the connecting plug 16 and the connecting socket 15 are three-quarters of a circle in cross section, the design of three-quarters of a circle facilitates the rotation of the baffle 10; one side of the telescopic arm main body 1 is fixedly provided with two mounting plates 8, the mounting plates 8 and the baffle 10 are provided with a shock spring 9, through the shock spring 9, the baffle 10 can be buffered when being impacted by the falling rock.

[0032] With reference to Figure 4 and Figure 6 , the top of the baffle 10 is fixedly provided with a hook 17, the hook 17 is connected between the shock spring 9, through the hook 17, the shock spring 9 can be quickly fixed, the bottom of the shock spring 9 is hung on the hook 17, so that the shock spring 9 can be quickly disassembled; the top of the mounting frame 14 is fixedly provided with a guide plate 13, the guide plate 13 is triangular in cross section, through the guide plate 13 which is triangular in cross section, the falling rock can be conveniently guided to the baffle 10.

[0033] Working principle: in use, the telescopic arm is driven to move by the heading machine, so that the cutter 5 is driven to perform the roadway heading work, when the roadway side wall surface needs to be corrected, the driving motor 6 can be driven to drive the worm 11 to rotate, the worm 11 drives the worm wheel 12 to rotate, and then drives the connecting seat 4 to deviate in angle, so that the connecting seat 4 is rotated by ninety degrees, so that the side wall surface of the roadway can be quickly corrected, without the need for the worker to hold the breaking hammer for subsequent processing, and then the heading efficiency is increased.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A self-adapting telescopic arm structure suitable for coal mine roadway tunneling, comprising a telescopic arm main body (1), characterized in that, One side of the telescopic arm body (1) is fixedly provided with a mounting rack (14), the top inner wall and the bottom inner wall of the mounting rack (14) are rotationally connected with a connecting seat (4), the bottom outer wall of the mounting rack (14) is rotationally connected with a worm wheel (12), the worm wheel (12) and the connecting seat (4) are fixedly provided, the bottom of the mounting rack (14) is fixedly connected with a mounting shell (7), the both side inner walls of the mounting shell (7) are rotationally connected with a worm (11), the worm (11) is engaged with the worm wheel (12), one side outer wall of the mounting shell (7) is fixedly connected with a driving motor (6), the output shaft of the driving motor (6) and the worm (11) are fixedly provided, one side of the connecting seat (4) is fixedly provided with a cutter (5).

2. The self-adapting telescopic arm structure suitable for coal mine roadway tunneling according to claim 1, characterized in that, Both sides of the mounting rack (14) are rotationally provided with a baffle (10), the baffle (10) is of a fold type.

3. The self-adapting telescopic arm structure for coal mine roadway tunneling according to claim 2, characterized in that, One side of the baffle (10) is provided with a connecting socket (15), the inner wall of the connecting socket (15) is inserted with a connecting plug (16), the connecting plug (16) and the mounting rack (14) are fixedly provided.

4. The self-adapting telescopic arm structure for coal mine roadway tunneling according to claim 3, characterized in that, The connecting plug (16) and the connecting socket (15) are of a three-quarter circle section.

5. The self-adapting telescopic arm structure for coal mine tunneling according to claim 4, characterized in that, One side of the telescopic arm body (1) is fixedly provided with two mounting plates (8), the mounting plates (8) and the baffle (10) are provided with a vibration spring (9).

6. The self-adapting telescopic arm structure for coal mine tunneling according to claim 5, characterized in that, The top of the baffle (10) is fixedly provided with a hook (17), the hook (17) is connected between the vibration spring (9).

7. The self-adapting telescopic arm structure for coal mine tunneling according to claim 6, characterized in that, The top of the mounting rack (14) is fixedly provided with a guide plate (13), the guide plate (13) is of a triangular section.

8. The self-adapting telescopic arm structure for coal mine tunneling according to claim 1, characterized in that, Both ends of the telescopic arm body (1) are fixedly provided with side covers (2), the top inner wall of the side cover (2) is provided with a telescopic rod (3).

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