Mining automatic heading machine protection mechanism

Abstract

The utility model relates to the technical field of protection mechanisms, in particular to a mining automatic heading machine protection mechanism which comprises a heading machine cutting head and a supporting rod used for fixing the heading machine cutting head, a protection assembly is movably arranged on the outer side of the supporting rod in a sleeved mode, and the protection assembly comprises two clamping rings symmetrically arranged on the outer side of the supporting rod in a sleeved mode. And two connecting seats are fixedly installed on the outer side surface of the clamping ring at equal intervals, rotating shafts are rotationally connected into the connecting seats, and protective covers are fixedly installed on the outer side surfaces of the rotating shafts. According to the protective device, the cutting head of the heading machine is covered with the protective assembly, when a person passes by, the situation that the person is injured by cutting teeth on the surface of the cutting head due to mistaken touch is avoided, and when the cutting head is maintained, the part, needing to be maintained, of the cutting head is exposed through the adjusting assembly, and the other part of the cutting head is covered; and the other cutting picks except the maintenance surface are prevented from hurting maintenance personnel, the potential safety hazard is reduced, and the protection effect on the cutting head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protection mechanisms, in particular to a protection mechanism for an automatic mining tunneling machine. Background Art

[0002] When a tunnel boring machine is excavating a tunnel in an underground coal mine, after each cutting of the coal (rock) on the facing working face, the tunnel boring machine retreats to a reasonable position, and after the cutting head falls to the ground, the working face is supported again. The cutting head of the tunnel boring machine is covered with cutting teeth and is usually exposed.

[0003] The existing tunnel boring machine cutting head is usually directly exposed to the outside world. When a person passes by and accidentally touches it, the cutting teeth on the surface of the cutting head are likely to cause unnecessary harm to the person. When the cutting head is maintained, the remaining cutting teeth outside the maintenance surface are also likely to cause harm to the maintenance personnel. There are certain safety hazards and the protection is poor. Utility Model Content

[0004] The purpose of the utility model is to provide a protective mechanism for an automated mining tunneling machine to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A protective mechanism for an automated mining tunnel boring machine comprises a tunnel boring machine cutting head and a support rod for fixing the tunnel boring machine cutting head, a protective assembly is provided on the movable sleeve on the outer side of the support rod, the protective assembly comprises two retaining rings symmetrically sleeved on the outer side of the support rod, two connecting seats are fixedly installed at equal distances on the outer surface of the retaining ring, a rotating shaft is rotatably connected inside the connecting seat, a protective cover is fixedly installed on the outer surface of the rotating shaft, an adjusting assembly is fixedly installed on the outer surface of the retaining ring, the adjusting assembly comprises a No. 1 tooth plate slidably connected to the outer surface of the retaining ring, a No. 1 gear is fixedly installed in the middle of the outer surface of the rotating shaft, and a moving assembly is fixedly installed on the outer surface of the retaining ring.

[0007] Furthermore, connecting ears are fixedly installed at both ends of the outer surface of the clamping ring, a bolt is movably inserted between two adjacent connecting ears, and a nut is screwed and connected at one end of the outer side of the bolt.

[0008] Furthermore, the first gear is movably meshed with an adjacent first gear plate.

[0009] Furthermore, a sliding rod is fixedly installed on one side surface of the first tooth plate, and the sliding rod passes through the clamping ring and is slidably connected to the clamping ring.

[0010] Furthermore, the moving component includes a mounting frame fixedly embedded in the outer surface of the retaining ring, a motor is fixedly mounted on the inner surface of the mounting frame, and a No. 2 gear is fixedly mounted on the output end of the motor.

[0011] Preferably, a second tooth plate is symmetrically fixedly mounted on the outer surface of the support rod, the second tooth plate passes through the retaining ring and is slidably connected to the retaining ring, and the second gear passes through the retaining ring and is movably meshed with the adjacent second tooth plate.

[0012] Preferably: an electric push rod is fixedly mounted on the surface of one end of the mounting frame, a Y-shaped pull plate is fixedly mounted between two No. 1 tooth plates located on one side of the same retaining ring, and one end of the electric push rod is fixedly connected to the surface of one side of the Y-shaped pull plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By extending the electric push rod, the Y-shaped pull plate is pushed to move, so that the two No. 1 tooth plates connected to it move, so that the No. 1 tooth plate pushes the No. 1 gear to rotate, driving the protective cover to rotate, exposing the outer part of the cutting head of the tunnel boring machine, reducing the exposed area of ​​the cutting head of the tunnel boring machine, and thus exposing the part of the cutting head of the tunnel boring machine that needs to be repaired by adjusting the component, and covering the rest, so as to prevent the remaining cutting teeth outside the maintenance surface from causing harm to the maintenance personnel, reduce safety hazards, and improve the protection effect of the cutting head of the tunnel boring machine.

[0015] 2. The motor runs, driving the No. 2 gear to rotate. Through the meshing of the No. 2 gear and the No. 2 tooth plate, the No. 2 gear rotates on the surface of the No. 2 tooth plate, driving the protective component to move as a whole, and covering the protective cover on the outside of the cutting head of the tunnel boring machine, so that the cutting head of the tunnel boring machine is covered by the protective component. When people pass by, the teeth on the surface of the cutting head of the tunnel boring machine are prevented from causing harm to people, thereby reducing safety hazards and improving the protection effect of the cutting head of the tunnel boring machine.

[0016] 3. Pass the bolts through the two connecting ears and tighten them with nuts to make the retaining ring easy to install. Conversely, remove the bolts and nuts to make the retaining ring easy to remove and repair and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly structure of the protection component in the utility model;

[0019] Figure 3 It is a schematic diagram of the side section structure of the protection component in the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the protection component in the utility model;

[0021] Figure 5 It is a schematic diagram of the oblique cross-section structure of the protection component in the utility model.

[0022] In the figure: 1. cutting head of the tunnel boring machine; 101. support rod; 2. protection assembly; 201. retaining ring; 202. connecting seat; 203. rotating shaft; 204. protection cover; 205. connecting ear; 206. bolt; 3. adjustment assembly; 301. electric push rod; 302. Y-type pull plate; 303. No. 1 tooth plate; 304. sliding rod; 305. No. 1 gear; 4. moving assembly; 401. mounting frame; 402. motor; 403. No. 2 gear; 404. No. 2 tooth plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 5 In an embodiment of the utility model, a protective mechanism for an automated mining tunneling machine comprises a tunneling machine cutting head 1 and a support rod 101 for fixing the tunneling machine cutting head 1. A protective assembly 2 is movably sleeved on the outer side of the support rod 101. The protective assembly 2 comprises two clamping rings 201 symmetrically sleeved on the outer side of the support rod 101. Two connecting seats 202 are fixedly installed at equal distances on the outer surface of the clamping ring 201. A rotating shaft 203 is rotatably connected inside the connecting seat 202. A protective cover 204 is fixedly installed on the outer surface of the rotating shaft 203. An adjusting assembly 3 is fixedly installed on the outer surface of the clamping ring 201. The adjusting assembly 3 comprises a No. 1 tooth plate 303 slidably connected to the outer surface of the clamping ring 201. A No. 1 gear 305 is fixedly installed in the middle of the outer surface of the rotating shaft 203. A moving assembly 4 is fixedly installed on the outer surface of the clamping ring 201.

[0025] Specifically, the adjusting component 3 adjusts the protective cover 204 to different angles to partially expose the cutting head 1 of the tunnel boring machine, and the moving component 4 pushes the protective component 2 to move as a whole to cover and expose the cutting head 1 of the tunnel boring machine.

[0026] Embodiment 1

[0027] like Figure 2-4 As shown, in this embodiment, the No. 1 gear 305 is movably meshed with the adjacent No. 1 tooth plate 303; a slide rod 304 is fixedly installed on the surface of one side of the No. 1 tooth plate 303, the slide rod 304 passes through the retaining ring 201, and is slidably connected to the retaining ring 201; an electric push rod 301 is fixedly installed on the surface of one end of the mounting frame 401, a Y-shaped pull plate 302 is fixedly installed between the two No. 1 tooth plates 303 located on one side of the same retaining ring 201, and one end of the electric push rod 301 is fixedly connected to the surface of one side of the Y-shaped pull plate 302.

[0028] In this embodiment, the electric push rod 301 extends, pushing the Y-shaped pull plate 302 to move, so that the two No. 1 tooth plates 303 connected thereto move, and through the engagement of the No. 1 tooth plate 303 and the No. 1 gear 305, the No. 1 tooth plate 303 pushes the No. 1 gear 305 to rotate, driving the protective cover 204 to rotate, exposing the outer part of the tunnel boring machine cutting head 1, reducing the exposed area of ​​the tunnel boring machine cutting head 1, so that the part of the tunnel boring machine cutting head 1 that needs to be repaired is exposed through the adjustment component 3, and the rest is covered, so as to prevent the remaining cutting teeth outside the maintenance surface from causing harm to the maintenance personnel, reduce safety hazards, and improve the protection effect of the tunnel boring machine cutting head 1.

[0029] As shown in 3-5, in this embodiment, the moving component 4 includes a mounting frame 401 fixedly embedded in the outer surface of the retaining ring 201, a motor 402 is fixedly mounted on the inner surface of the mounting frame 401, and a No. 2 gear 403 is fixedly mounted on the output end of the motor 402; a No. 2 gear plate 404 is symmetrically fixedly mounted on the outer surface of the support rod 101, the No. 2 gear plate 404 passes through the retaining ring 201 and is slidably connected to the retaining ring 201, and the No. 2 gear 403 passes through the retaining ring 201 and is movably meshed with the adjacent No. 2 gear plate 404.

[0030] During specific implementation, the motor 402 runs, driving the No. 2 gear 403 to rotate. Through the meshing of the No. 2 gear 403 and the No. 2 tooth plate 404, the No. 2 gear 403 rotates on the surface of the No. 2 tooth plate 404, driving the protective component 2 to move as a whole, and covering the protective cover 204 on the outside of the tunnel boring machine cutting head 1, thereby covering the tunnel boring machine cutting head 1 through the protective component 2. When people pass by, the cutting teeth on the surface of the tunnel boring machine cutting head 1 are prevented from causing harm to people due to accidental touching, thereby reducing safety hazards and improving the protection effect of the tunnel boring machine cutting head 1.

[0031] Embodiment 2

[0032] On the basis of the first embodiment, in order to solve the problem that the protection component 2 in the first embodiment is inconvenient to install and disassemble.

[0033] like Figure 3 As shown, in this embodiment, connecting ears 205 are fixedly installed at both ends of the outer surface of the clamping ring 201, a bolt 206 is movably inserted between two adjacent connecting ears 205, and a nut is screwed and connected at one end of the outer side of the bolt 206.

[0034] In specific implementation, the bolt 206 passes through the two connecting ears 205 and is fastened with a nut, so that the clamping ring 201 is easy to install. Conversely, the bolt 206 and the nut are removed to make the clamping ring 201 easy to disassemble and repair and replace.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A protection mechanism for an automated mining tunnel boring machine, comprising a tunnel boring machine cutting head (1) and a support rod (101) for fixing the tunnel boring machine cutting head (1), characterized in that: The outer movable sleeve of the support rod (101) is provided with a protective component (2), and the protective component (2) includes two retaining rings (201) symmetrically sleeved on the outer side of the support rod (101), and two connecting seats (202) are fixedly installed at equal distances on the outer surface of the retaining ring (201), and a rotating shaft (203) is rotatably connected inside the connecting seat (202), and a protective cover (204) is fixedly installed on the outer surface of the rotating shaft (203), and an adjustment component (3) is fixedly installed on the outer surface of the retaining ring (201), and the adjustment component (3) includes a No. 1 gear plate (303) slidably connected to the outer surface of the retaining ring (201), and a No. 1 gear (305) is fixedly installed in the middle of the outer surface of the rotating shaft (203), and a moving component (4) is fixedly installed on the outer surface of the retaining ring (201).

2. A protection mechanism for an automated mining tunneling machine according to claim 1, characterized in that: Connecting ears (205) are fixedly installed at both ends of the outer surface of the clamping ring (201), a bolt (206) is movably inserted between two adjacent connecting ears (205), and a nut is screwed and connected at one end of the outer side of the bolt (206).

3. A protection mechanism for an automated mining tunneling machine according to claim 1, characterized in that: The first gear (305) is movably meshed with the adjacent first gear plate (303).

4. A protection mechanism for an automated mining tunneling machine according to claim 1, characterized in that: A sliding rod (304) is fixedly mounted on one side surface of the first tooth plate (303), and the sliding rod (304) penetrates the clamping ring (201) and is slidably connected to the clamping ring (201).

5. The protection mechanism for an automatic mining tunnel boring machine according to claim 1, characterized in that: The moving assembly (4) comprises a mounting frame (401) fixedly embedded in the outer surface of the retaining ring (201), a motor (402) fixedly mounted on the inner surface of the mounting frame (401), and a second gear (403) fixedly mounted on the output end of the motor (402).

6. A protection mechanism for an automated mining tunneling machine according to claim 5, characterized in that: A second tooth plate (404) is symmetrically fixedly mounted on the outer surface of the support rod (101); the second tooth plate (404) penetrates the snap ring (201) and is slidably connected to the snap ring (201); the second gear (403) penetrates the snap ring (201) and is movably meshed with the adjacent second tooth plate (404).

7. A protection mechanism for an automated mining tunneling machine according to claim 5, characterized in that: An electric push rod (301) is fixedly mounted on the surface of one end of the mounting frame (401), a Y-shaped pull plate (302) is fixedly mounted between two No. 1 tooth plates (303) located on one side of the same clamping ring (201), and one end of the electric push rod (301) is fixedly connected to the surface of one side of the Y-shaped pull plate (302).

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