Integrated protection device for coal mine heading machine, heading machine and operation method

Abstract

The invention belongs to the field of coal mine underground heading machine technology and equipment, and particularly relates to an integrated protection device for a coal mine heading machine, the heading machine and an operation method. Comprising a base, the base is used for being installed on the upper portion of a cutting mechanism of the heading machine, and a first supporting seat and a second supporting seat which are used for installing an anchor rod supporting mechanism and a sliding rail clamping groove used for installing a cutting protection mechanism are arranged on the base; the anchor rod supporting mechanism is mounted on the first supporting seat and the second supporting seat; a sliding rail of the cutting protection mechanism is arranged in the sliding rail clamping groove in a sliding manner; and the anchor rod supporting mechanism and the cutting protection mechanism share one hydraulic power source. Continuous mechanical construction of tunneling and protection operation is achieved, the labor intensity of workers is reduced, the working face tunneling efficiency is improved, and the safety of the workers is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of coal mine underground tunneling machine technology and equipment, specifically an integrated protective device for coal mine tunneling machines, a tunneling machine, and an operating method. Background Technology

[0002] Tunneling machines are important equipment for underground roadway construction in coal mines. The operating status and safety protection of tunneling machines are important control targets for safe production. Coal mine safety regulations stipulate that it is strictly forbidden to work under the roof of the tunneling face. The problem of temporary support at the working face must be solved. After the tunneling machine stops, the cutting head must be placed on the ground and safety protection must be implemented to ensure the safety of personnel working at the working face.

[0003] Traditional temporary support equipment involves a fragmented process, and the cutting head protection is mostly made of simple metal mesh or welded steel plates. The equipment is bulky, requires multiple manual handling, and occupies a certain space for storage. Frequent handling results in high labor intensity, low efficiency, and poor safety. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an integrated protective device for coal mine tunneling machines, a tunneling machine, and an operating method.

[0005] This invention adopts the following technical solution: an integrated protective device for coal mine tunneling machines, comprising: The base is used to be installed on the upper part of the cutting mechanism of the tunneling machine, and is provided with a first support seat and a second support seat for installing the anchor bolt support mechanism, and a slide rail slot for installing the cutting protection mechanism. An anchor bolt support mechanism, wherein the anchor bolt support mechanism is installed on the first support base and the second support base; The cutting and protection mechanism has a slide rail that is slidably disposed in the slide rail slot; the anchor bolt support mechanism and the cutting and protection mechanism share a hydraulic power source.

[0006] In some embodiments, the anchor bolt support mechanism includes: The top beam is connected to the first support base via the first support shaft; A tilting cylinder is hinged between the first support shaft and the first lower lug on the base, and is used to drive the top beam to unfold upwards and retract downwards. The lifting cylinder is hinged between the second support shaft and the first lug of the top beam, which is set on the top beam, and is used to drive the lifting and lowering movement of the top beam.

[0007] In some embodiments, the anchor support mechanism further includes a support cylinder, which is hinged between the second lug on the top beam and the second lower lug on the base, for driving the top beam to pitch and rotate.

[0008] In some embodiments, the cut protection mechanism includes: The slide rail is driven by a second pusher cylinder to slide back and forth in the slide rail slot. The telescopic frame cooperates with the slide rail and is driven to slide back and forth relative to the slide rail by a first pushing hydraulic cylinder; The tilting frame is mounted at the front end of the telescopic frame via a pin and is driven to tilt by a push-pull hydraulic cylinder.

[0009] The tilting frame is hinged with a front guard plate and a side guard plate. The front guard plate is tilted by a forward hinge sleeve, and the side guard plate is tilted by a lateral hinge sleeve.

[0010] In some embodiments, the hydraulic power source is the hydraulic pump station built into the tunneling machine.

[0011] A tunneling machine includes a protective device, a cutting mechanism, a shovel mechanism, a transport mechanism, a traveling mechanism, a frame mechanism, and an electrical system. The protective device is located on the upper part of the cutting mechanism. The cutting mechanism is hinged to the rotary table at the front end of the frame mechanism. The cutting mechanism swings up, down, left, and right relative to the frame mechanism. The shovel mechanism is connected to the front end of the frame mechanism, and the shovel mechanism can swing up and down relative to the frame mechanism. The transport mechanism is located in the middle of the frame structure and is used to transport materials; The traveling mechanism is located on both sides of the frame structure and is used for the tunneling machine to travel; Hydraulic pump stations are used to provide hydraulic power sources; Electrical systems are used to provide electrical power and control.

[0012] In some embodiments, the support operation of the anchor bolt support mechanism and the cutting operation of the tunneling machine are interlocked through a hydraulic system or an electrical system.

[0013] An operating method for an integrated protective device includes the following steps: When the tunneling machine is performing support work, stop the tunneling machine and lower the cutting mechanism, shovel mechanism and rear support mechanism to the ground; Deploy the anchor bolt support mechanism: Operate the tilting cylinder and the supporting cylinder to deploy the anchor bolt support mechanism from the folded state; Operate the lifting cylinder to raise the top beam and bring it close to the top plate; Anchor bolt support operations are carried out under the protection of the anchor bolt support mechanism; Deploy the cutting and protection mechanism: Operate the second push cylinder to extend the slide rail from the slide rail slot; Operate the first pushing cylinder to extend the telescopic frame relative to the slide rail; Operate the push-pull hydraulic cylinder to flip the tilting frame and open the side and front guard plates to protect the cutting head.

[0014] In some embodiments, when the tunneling machine is performing a cutting operation, the cutting protection mechanism is retracted: the first push cylinder, the second push cylinder, and the push-pull cylinder are operated to retract the cutting protection mechanism onto the base. Retractable anchor bolt support mechanism: Operate the tilting cylinder, lifting cylinder and supporting cylinder to retract and fold the anchor bolt support mechanism onto the upper part of the cutting mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the anchor bolt support mechanism and the cutting and protection mechanism are integrated with the tunneling machine in a single design and installed on the upper part of the tunneling machine's cutting mechanism. The structure is compact and the operation is stable. The anchor bolt support mechanism can be deployed quickly and has a large support range, which is conducive to the forward advancement of the drilling frame mechanism for support operations.

[0016] In this invention, the protective device uses the hydraulic pump station of the tunneling machine as a power source to provide oil to all hydraulic cylinders. The anchor bolt support mechanism and the cutting protection mechanism are mutually locked with the tunneling and cutting operation to ensure the safety and reliability of personnel.

[0017] In this invention, the exposed roof area and the cutting section of the tunneling face are protected, and the protective device is mounted on the tunneling machine and moves forward with the machine, realizing continuous mechanized construction of tunneling and protection operations, reducing the labor intensity of workers, improving the tunneling efficiency of the working face, and ensuring the safety of the workers. Attached Figure Description

[0018] Figure 1 This is a diagram showing the protection status of the tunneling machine according to the present invention; Figure 2 This is a diagram of the protective device of the present invention in its unfolded state; Figure 3 This is a diagram showing the retracted state of the protective device of the present invention; In the diagram: 1-Protective device, 2-Cutting mechanism, 3-Shovel mechanism, 4-Transportation mechanism, 5-Traveling mechanism, 6-Frame mechanism, 7-Hydraulic pump station, 8-Electrical system, 9-Drill frame mechanism, 10-Anchor bolt support mechanism, 11-Cutting and protective mechanism, 12-Rear lifting mechanism, 13-Base, 14-First support seat, 15-Tilting cylinder, 16-First support shaft, 17-Lifting cylinder, 18-Top beam first lug, 19-Support cylinder, 20-Top beam second lug, 21-Top beam, 22-Tilting beam lug, 23-Tilting beam, 24-Front Telescopic cylinder, 25-front telescopic beam, 26-slide rail, 27-slide rail slot, 28-first cylinder lug, 29-first push cylinder, 30-second push cylinder, 31-second support seat, 32-second support shaft, 33-telescopic frame, 34-push-pull cylinder, 35-side guard plate, 36-front guard plate, 37-forward hinge sleeve, 38-tilting frame, 39-side hinge sleeve, 40-first rotating plate, 41-second rotating plate, 42-first lower lug, 43-second lower lug, 44-push-pull cylinder first lug, 45-push-pull cylinder second lug. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 2 , 3 As shown, an integrated protective device for a coal mine tunneling machine includes: The base 13 is used to install on the upper part of the cutting mechanism 2 of the tunneling machine. The base 13 is provided with a first support seat 14 and a second support seat 31 for installing the anchor bolt support mechanism 10, and a slide rail groove 27 for installing the cutting protection mechanism 11. An anchor bolt support mechanism 10 is installed on the first support seat 14 and the second support seat 31; The cutting and protection mechanism 11 has a slide rail 26 that is slidably disposed in the slide rail slot 27; the anchor bolt support mechanism 10 and the cutting and protection mechanism 11 share a hydraulic power source.

[0021] Specifically, the anchor bolt support mechanism 10 includes: The top beam 21 is connected to the first support base 14 via the first support shaft 16; The tilting cylinder 15 is hinged between the first support shaft 16 and the first lower ear seat 43 on the base 13, and is used to drive the top beam 21 to unfold upward and retract downward. The lifting cylinder 17 is hinged between the second support shaft 32 and the first lug 18 of the top beam 21, and is used to drive the lifting and lowering movement of the top beam 21.

[0022] Specifically, the anchor bolt support mechanism 10 also includes a support cylinder 19, which is hinged between the second lug 20 on the top beam 21 and the second lower lug 42 on the base 13, and is used to drive the top beam 21 to pitch and rotate.

[0023] Cutting and protection mechanism 11 includes: The slide rail 26 is driven by the second push cylinder 30 to slide back and forth in the slide rail slot 27; The telescopic frame 33 cooperates with the slide rail 26 and is driven to slide back and forth relative to the slide rail 26 by the first pushing cylinder 29; The tilting frame 38 is set at the front end of the telescopic frame 33 by a pin and is driven to tilt by a push-pull cylinder 34. The protective device 1 is designed as an integrated unit of the anchor bolt support mechanism 10 and the cutting protection mechanism 11. The anchor bolt support mechanism 10 is used for protection when drilling and installing anchor bolts, and the cutting protection mechanism 11 is used for protection during the cutting mechanism.

[0024] The protective device 1 is installed on the upper part of the cutting mechanism 2 via the base 13. The base 13 is provided with a first support seat 14, a slide rail slot 27, a first cylinder lug seat 28, and a second support seat 31.

[0025] A first support shaft 16 is mounted on a first support seat 14, and a second support shaft 32 is mounted on a second support seat 31. A tilting cylinder 15 is positioned between the first support shaft 16 and the first lower ear seat 43, symmetrically arranged left and right. The tilting cylinder 15 drives the top beam 21 to extend upwards and retract downwards. A lifting cylinder 17 is positioned between the second support shaft 32 and the first ear seat 18 of the top beam, symmetrically arranged, driving the top beam 21 to move up and down relative to the base 13. A support cylinder 19 is positioned between the second ear seat 20 of the top beam and the first lower ear seat 42, symmetrically arranged left and right, driving the top beam 21 to rotate up and down. A tilting beam 23 is mounted on the left and right sides of the top beam 21 via a tilting beam ear seat 22. A front telescopic cylinder 24 is positioned between the front telescopic beam 25 and the top beam 21, symmetrically arranged left and right, driving the front telescopic beam 25 to slide back and forth relative to the top beam 21.

[0026] The slide rail 26 is disposed in the slide rail slot 27, and is driven to slide back and forth relative to the base 13 by the second push cylinder 30. The telescopic frame 33 is assembled with the slide rail 26, and is driven to slide back and forth relative to the slide rail 26 by the first push cylinder 29. The telescopic frame 33 is provided with a push-pull cylinder 34, which drives the tilting frame 37 to tilt. The tilting frame 38 is disposed at the front end of the telescopic frame 33 by a pin. The tilting frame 38 is provided with a front guard plate 36 and a side guard plate 35, which are tilted by a forward hinge sleeve 37 and a lateral hinge sleeve 39.

[0027] like Figure 1 As shown, an integrated protective device for a coal mine tunneling machine and the tunneling machine include a protective device 1, a cutting mechanism 2, a shovel mechanism 3, a transport mechanism 4, a traveling mechanism 5, a frame mechanism 6, a hydraulic pump station 7, an electrical system 8, a drill frame mechanism 9, an anchor bolt support mechanism 10, a cutting and protective mechanism 11, and a rear support mechanism 12.

[0028] The protective device 1 is installed on the upper part of the cutting mechanism 2. The cutting mechanism 2 is hinged to the rotary table at the front end of the frame mechanism 6 through a pin. The cutting mechanism 2 swings up and down and left and right relative to the frame mechanism 6 through a hydraulic cylinder. The shovel mechanism 3 is connected to the front end of the frame mechanism 6 through a pin. The shovel mechanism 3 can swing up and down relative to the frame mechanism 6 through a hydraulic cylinder. The transport mechanism 4 is located in the middle of the frame mechanism 6 and is used to transport materials. The walking mechanism 5 is installed on both sides of the frame mechanism 6 through bolts and is used for the tunneling machine to walk. The hydraulic pump station 7 is used to provide hydraulic power source. The electrical system 8 is used to provide electrical power and control.

[0029] When the tunneling machine is in support operation, the tunneling machine stops, the cutting mechanism 2, the shovel mechanism 3 and the rear support mechanism 12 are lowered to the ground, the protective device 1 is deployed, the tilting cylinder 15 and the support cylinder 19 are operated to allow the anchor bolt support mechanism 10 to be smoothly deployed from the folded state, the lifting cylinder 17 is operated, and the top beam 21 is tilted to raise the top beam to gradually approach the top plate, and the personnel carry out anchor bolt support operation under the protection of the anchor bolt support mechanism 10; the second pushing cylinder 30 is operated to extend the slide rail, the cutting and protective mechanism 11 is extended forward from the retracted state, the first pushing cylinder 29 is operated to extend the telescopic frame 33, the push-pull cylinder 34 is operated to deploy the tilting frame 38, and the side guard plate 35 and the front guard plate 36 are opened to protect the cutting head.

[0030] When the tunneling machine is cutting, the first pushing cylinder 29, the second pushing cylinder 30, and the push-pull cylinder 34 are operated, and the cutting protection mechanism 11 is retracted onto the base 13. The tilting cylinder 15, the lifting cylinder 17, and the supporting cylinder 19 are operated to retract, and the anchor bolt support mechanism 10 is retracted and folded onto the upper part of the cutting mechanism 2.

[0031] The protective device 1 uses the tunneling machine hydraulic pump 7 as a power source to provide power oil for the operation of all hydraulic cylinders of the protective device 1.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated protective device for coal mine tunneling machines, characterized in that, include: The base (13) is used to install on the upper part of the cutting mechanism (2) of the tunneling machine, and is provided with a first support seat (14) and a second support seat (31) for installing the anchor support mechanism (10), and a slide rail slot (27) for installing the cutting protection mechanism (11). An anchor bolt support mechanism (10) is installed on the first support seat (14) and the second support seat (31); The cutting and protection mechanism (11) has a slide rail (26) that is slidably disposed in the slide rail slot (27); the anchor bolt support mechanism (10) and the cutting and protection mechanism (11) share a hydraulic power source.

2. The integrated protective device for coal mine tunneling machines according to claim 1, characterized in that, The anchor bolt support mechanism (10) includes: The top beam (21) is connected to the first support base (14) via the first support shaft (16); The tilting cylinder (15) is hinged between the first lower lug (43) on the first support shaft (16) and the base (13) to drive the top beam (21) to unfold upwards and retract downwards; The lifting cylinder (17) is hinged between the second support shaft (32) and the first ear seat (18) of the top beam (21) and is used to drive the lifting movement of the top beam (21).

3. The integrated protective device for coal mine tunneling machines according to claim 2, characterized in that, The anchor support mechanism (10) also includes a support cylinder (19), which is hinged between the second ear seat (20) of the top beam (21) and the second lower ear seat (42) of the base (13) to drive the top beam (21) to pitch and rotate.

4. The integrated protective device for coal mine tunneling machines according to claim 1, characterized in that, The cutting protection mechanism (11) includes: The slide rail (26) is driven by the second push cylinder (30) to slide back and forth in the slide rail slot (27); The telescopic frame (33) cooperates with the slide rail (26) and is driven to slide back and forth relative to the slide rail (26) by the first push cylinder (29); The tilting frame (38) is set at the front end of the telescopic frame (33) by a pin and is driven to tilt by a push-pull cylinder (34).

5. The integrated protective device for coal mine tunneling machines according to claim 4, characterized in that, The flipping frame (38) is hinged with a front guard plate (36) and a side guard plate (35). The front guard plate (36) flips through a forward hinge sleeve (37), and the side guard plate (35) flips through a lateral hinge sleeve (39).

6. The integrated protective device for coal mine tunneling machines according to claim 1, characterized in that, The hydraulic power source is the hydraulic pump station (7) that comes with the tunneling machine.

7. A tunneling machine, comprising a protective device (1), a cutting mechanism (2), a shovel mechanism (3), a transport mechanism (4), a traveling mechanism (5), a frame mechanism (6), a hydraulic pump station (7), and an electrical system (8), characterized in that, The invention includes an integrated protective device (1) for a coal mine tunneling machine as described in any one of claims 1 to 6. The protective device (1) is installed on the upper part of the cutting mechanism (2). The cutting mechanism (2) is hinged to the rotary table at the front end of the frame mechanism (6). The cutting mechanism (2) swings up, down and left and right relative to the frame mechanism (6). The shovel mechanism (3) is connected to the front end of the frame mechanism (6), and the shovel mechanism (3) can swing up and down relative to the frame mechanism (6); The transport mechanism (4) is located in the middle of the frame mechanism (6) and is used to transport materials; The traveling mechanism (5) is set on both sides of the frame mechanism (6) for the tunneling machine to travel; The hydraulic pump station (7) is used to provide a hydraulic power source; The electrical system (8) is used to provide electrical power and control.

8. The tunneling machine according to claim 7, characterized in that, The support operation of the anchor bolt support mechanism (10) and the cutting operation of the tunneling machine are interlocked through the hydraulic system (7) or the electrical system (8).

9. A method for operating an integrated protective device as described in any one of claims 1 to 6, characterized in that, Includes the following steps: When the tunneling machine is performing support operations, stop the tunneling machine and place the cutting mechanism (2), the shovel mechanism (3) and the rear support mechanism (12) on the ground; Unfold the anchor bolt support mechanism (10): Operate the tilting cylinder (15) and the supporting cylinder (19) to unfold the anchor bolt support mechanism (10) from the folded state; Operate the lifting cylinder (17) to raise the top beam (21) and bring it close to the top plate; Anchor bolt support operations are carried out under the protection of the anchor bolt support mechanism (10); Deploy the cutting and protection mechanism (11): Operate the second push cylinder (30) to make the slide rail (26) extend out of the slide rail slot (27); Operate the first push cylinder (29) to extend the telescopic frame (33) relative to the slide rail (26); Operate the push-pull cylinder (34) to flip the tilting frame (38) and open the side guard plate (35) and front guard plate (36) to protect the cutting head.

10. A method of operating an integrated protective device as described in any one of claims 1 to 6, characterized in that, Includes the following steps: When the tunneling machine is performing cutting operations, the cutting protection mechanism (11) is retracted: the first push cylinder (29), the second push cylinder (30) and the push-pull cylinder (34) are operated to retract the cutting protection mechanism (11) onto the base (13); Shrink anchor bolt support mechanism (10): Operate the tilting cylinder (15), lifting cylinder (17) and supporting cylinder (19) to shrink and fold the anchor bolt support mechanism (10) onto the upper part of the cutting mechanism (2).

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