Heading machine protection device for coal mine tunneling

Abstract

The utility model relates to the technical field of heading machines, and discloses a heading machine protection device for coal mine heading, which comprises a heading machine body, four corners of the top of the heading machine body are fixedly connected with support rods, the tops of the support rods are fixedly connected with a connecting plate, four corners of the top of the connecting plate are fixedly connected with telescopic rods, and the telescopic rods are fixedly connected with the heading machine body. A V-shaped baffle is fixedly connected to the top end of the telescopic rod, a plurality of rolling shafts are rotationally connected to the two sides of the top of the V-shaped baffle correspondingly, the telescopic rod is sleeved with a first spring, a connecting block is fixedly connected to one side of the outer portion of the telescopic rod, and two connecting rods are rotationally connected to the outer side of the connecting block; the two sides of the top of the connecting plate are fixedly connected with fixing shells. According to the utility model, the impact force caused by the falling of ores at the top can be effectively absorbed, the direct impact on the heading machine body is greatly reduced, the key parts of the heading machine are protected from being damaged, the service life of the equipment is prolonged, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heading machine technical field especially relates to a heading machine protection device for coal mine heading. BACKGROUND

[0002] The heading machine is the machine for straight ground to open up the roadway, mainly by walking mechanism, working mechanism, loading mechanism and transfer mechanism is composed. With walking mechanism advances, the cutting head in the working mechanism breaks rock constantly, and removes the broken rock. With the continuous exploitation of coal resources, the performance and safety requirement of the heading machine is also higher and higher. The coal mine environment is complex, and the heading machine faces many potential risks in the working process, such as top ore falling and a large amount of dust generated during work and so on, which all constitute a threat to the normal operation of the heading machine and the safety of the operator.

[0003] At present, there are some protective devices for coal mine heading machine. In the aspect of protecting top ore falling, a simple baffle structure is usually used for protection, which can play a certain protective role to a certain extent, but the overall effect is limited.

[0004] The existing heading machine protection device has poor buffering effect when dealing with top ore falling, cannot effectively absorb the impact force brought by ore falling, is easy to cause the damage of key components of the heading machine, increases the maintenance cost of the equipment and shortens the service life of the equipment. Therefore, a heading machine protection device for coal mine heading is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a heading machine protection device for coal mine heading, aiming at improving the problem that the existing heading machine protection device has poor buffering effect when dealing with top ore falling and cannot effectively absorb the impact force brought by ore falling.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a heading machine protection device for coal mine heading, including heading machine body, the top four corners of the heading machine body are all fixedly connected with support rods, the top of the support rod is fixedly connected with a link plate, the top four corners of the link plate are all fixedly connected with telescopic rods, the top of the telescopic rod is fixedly connected with a V-shaped baffle, the top of the V-shaped baffle is rotatably connected with a plurality of rollers on both sides, the outside of the telescopic rod is sleeved with a spring one, the outside of the telescopic rod is fixedly connected with a connecting block, the outside of the connecting block is rotatably connected with two connecting rods, the top of the link plate is fixedly connected with a fixed shell on both sides, the inner wall of the fixed shell is slidably connected with two sliding blocks, the corresponding two sliding blocks are fixedly connected with a spring two, the bottom of the link plate is provided with a dust removal assembly, and the dust removal assembly is used for dust removal generated during the working of the heading machine body.

[0007] As a further description of the above technical solutions:

[0008] The dust removal assembly comprises an air extractor installed on one side of the bottom of the adapter plate, a hose fixedly connected to the input end of the air extractor, a dust removal shell fixedly connected to the end of the hose away from the air extractor, a dust removal pipe fixedly connected to the outside of the dust removal shell, a dust collection cover fixedly connected to the end of the dust removal pipe away from the dust removal shell, a conveying pipe fixedly connected to the output end of the air extractor, a dust removal box fixedly connected to one side of the bottom of the adapter plate, two filter screens inserted into the inner wall of the dust removal box, a connecting plate fixedly connected to the bottom of the filter screen, a clamping groove formed in one side of the outer portion of the connecting plate, and a disassembly assembly arranged on one side of the bottom of the dust removal box and used for disassembling the connecting plate.

[0009] As a further description of the above technical solutions:

[0010] The end of the conveying pipe away from the air extractor is fixedly connected to the outside of the dust removal box, and the side of the dust removal box away from the air extractor is fixedly connected with a dust outlet pipe.

[0011] As a further description of the above technical solutions:

[0012] The disassembly assembly comprises two mounting shells, the top of each of the two mounting shells is fixedly connected to the bottom of the dust removal box, a mounting groove is formed in the inner portion of the mounting shell, a moving plate is slidably connected to the inner wall of the mounting groove, a clamping column is fixedly connected to one end of the moving plate, and a pull rod is fixedly connected to the other end of the moving plate.

[0013] As a further description of the above technical solutions:

[0014] The shape of the clamping column matches the shape of the clamping groove, and the outer portions of the two clamping columns are respectively inserted into the inner walls of the corresponding clamping grooves.

[0015] As a further description of the above technical solutions:

[0016] One end of each of the two springs is fixedly connected to one side of the corresponding moving plate, and the other end of each of the two springs is fixedly connected to the inner wall of the corresponding mounting groove.

[0017] As a further description of the above technical solutions:

[0018] The bottom ends of the plurality of connecting rods are respectively rotatably connected to the outer sides of the corresponding sliding blocks, and the bottom ends of the plurality of springs are fixedly connected to the top of the adapter plate.

[0019] As a further description of the above technical solutions:

[0020] The top of the adapter plate is provided with a damper on both sides, and the top end of the damper is fixedly connected to the bottom of the V-shaped baffle.

[0021] The utility model has the advantages of the following:

[0022] 1. In the utility model, the V-shaped baffle, the telescopic rod and the spring one cooperate to play a first layer of protection, the sliding block compresses the spring two to play a second layer of protection, and the roller can reduce friction when ore slides, so that the ore is more easily slid, accumulation on the V-shaped baffle is avoided, impact force caused by the top ore falling can be effectively absorbed, direct impact on the heading machine body is greatly reduced, the key components of the heading machine are protected from damage, the service life of equipment is prolonged, and maintenance cost is reduced.

[0023] 2. In the utility model, the air fan transports the air containing dust to the dust removal box through the conveying pipe. The air is filtered through the two filter screens in the dust removal box, dust generated during the working process of the heading machine body can be effectively removed, the risk of dust inhalation by the operator is greatly reduced, and the operator is protected. The clamping column and the clamping groove cooperate, the filter screen can be conveniently pulled out from the dust removal box for cleaning, replacement or installation, compared with the fixing mode of a plurality of bolts, the utility model is more quick, and the structure is reasonable and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0025] Figure 2 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0026] Figure 3 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0027] Figure 4 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model; Figure 3 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0028] Figure 5 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0029] Figure 6 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model; Figure 5 A perspective view of a heading machine protection device for coal mine heading is provided for the utility model;

[0030] Legend:

[0031] 1, tunneling machine body; 2, support rod; 3, link plate; 4, telescopic rod; 5, V-shaped baffle; 6, roller; 7, spring one; 8, connecting block; 9, connecting rod; 10, sliding block; 11, spring two; 12, fixed shell; 13, damper; 14, air extractor; 15, hose; 16, dust removal shell; 17, dust removal pipe; 18, dust collection cover; 19, conveying pipe; 20, dust removal pipe; 21, connecting plate; 22, filter screen; 23, clamping groove; 24, mounting shell; 25, mounting groove; 26, moving plate; 27, clamping column; 28, pull rod; 29, spring three; 30, dust removal box. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Referring to Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: a kind of tunneling machine protective device for coal mine tunneling, including tunneling machine body 1, the top four corners of tunneling machine body 1 are all fixedly connected with support rod 2, the top of support rod 2 is fixedly connected with link plate 3, the top four corners of link plate 3 are all fixedly connected with telescopic rod 4, the top of telescopic rod 4 is fixedly connected with V-shaped baffle 5, the top two sides of V-shaped baffle 5 are all rotatably connected with multiple rollers 6, telescopic rod 4 is externally equipped with spring one 7, the bottom of multiple spring one 7 is all fixedly connected in the top of link plate 3, telescopic rod 4 is fixedly connected with connecting block 8 outside one side, two connecting rods 9 are rotatably connected with the outside of connecting block 8, the top two sides of link plate 3 are all fixedly connected with fixed shell 12, the inner wall of fixed shell 12 is slidably connected with two sliding blocks 10, spring two 11 is fixedly connected between corresponding two sliding blocks 10, the bottom of multiple connecting rods 9 is rotatably connected with the outside of corresponding sliding block 10 respectively.

[0034] Specifically, the support rod 2 stably supports the connecting plate 3 and the upper protective component on the top of the tunneling machine body 1. The connecting plate 3 serves as a connecting platform for connecting the support rod 2, the telescopic rod 4, the fixing shell 12 and other components. When the V-shaped baffle 5 is impacted, the telescopic rod 4 can provide a certain telescopic stroke, so that the spring 7 has enough compression space, thereby effectively absorbing the impact force. The V-shaped baffle 5 can directly block the falling of the top ore, protecting the tunneling machine body 1 from direct impact. The V-shaped design is conducive to the smooth sliding of the ore on the baffle, avoiding the accumulation of ore on the baffle to increase the additional weight and impact force. When the ore slides, the roller 6 can greatly reduce the friction, making it easier for the ore to slide. Through the deformation of the spring 7, the impact force received by the V-shaped baffle 5 is absorbed, thereby playing a buffering role and reducing the impact on the tunneling machine body 1. The connecting block 8 transmits the movement of the telescopic rod 4 to the connecting rod 9, and the connecting rod 9 transmits the movement of the connecting block 8 to the sliding block 10, pushing the sliding block 10 to slide in the fixed shell 12, thereby compressing the spring 11 and achieving secondary buffering. Under the pushing of the connecting rod 9, the sliding block 10 slides in the fixed shell 12, compressing the spring 11 and making the spring 11 generate elastic force, thereby enhancing the buffering effect of the protective device. On the basis of the spring 7, the buffering force is further provided, thereby enhancing the buffering performance of the protective device and better protecting the tunneling machine body 1. The fixed shell 12 provides a sliding track and constraint for the sliding block 10.

[0035] Referring to Figure 1 , Figure 2 and Figure 5 , the bottom of the connecting plate 3 is provided with a dust removal assembly for removing dust generated during the operation of the tunneling machine body 1. The dust removal assembly includes an air extractor 14 installed on one side of the bottom of the connecting plate 3. The input end of the air extractor 14 is fixedly connected with a hose 15. The end of the hose 15 away from the air extractor 14 is fixedly connected with a dust removal shell 16. The dust removal shell 16 is fixedly connected to the outer front side of the tunneling machine body 1. Dust removal pipes 17 are fixedly connected to the outer sides of the dust removal shell 16. Dust collection covers 18 are fixedly connected to the ends of the dust removal pipes 17 away from the dust removal shell 16. A conveying pipe 19 is fixedly connected to the output end of the air extractor 14. A dust removal box 30 is fixedly connected to one side of the bottom of the connecting plate 3. The end of the conveying pipe 19 away from the air extractor 14 is fixedly connected to the outer side of the dust removal box 30. Two filter screens 22 are inserted into the inner wall of the dust removal box 30. A connecting plate 21 is fixedly connected to the bottom of the filter screen 22. A clamping groove 23 is formed in one side of the outer side of the connecting plate 21. A dust outlet pipe 20 is fixedly connected to the side of the dust removal box 30 away from the air extractor 14.

[0036] Specifically, the air extractor 14 ensures that the dust-laden air generated during the operation of the tunneling machine body 1 can be quickly sucked into the dust removal box 30, and the use of the hose 15 makes the connection between the air extractor 14 and the dust removal shell 16 more flexible, which can adapt to different positions and angle changes of the tunneling machine during operation, ensuring that the dust removal effect is not affected by the movement of the equipment. The dust removal shell 16 can collect dust from different directions. The dust removal pipe 17 is a conveying channel for dust from the dust collection hood 18 to the air extractor 14, which can ensure that the dust-laden air flows quickly and smoothly, improving the dust removal efficiency. The design of the dust collection hood 18 can expand the range of dust removal and collect as much dust as possible around the tunneling machine, improving the dust removal effect. The dust-laden air extracted by the air extractor 14 is transported to the dust removal box 30 for filtering treatment, ensuring that the dust can be effectively intercepted and treated. The filter screen 22 in the dust removal box 30 can effectively filter the dust in the air, allowing clean air to be discharged from the dust outlet pipe 20, achieving the purpose of dust removal. The connecting plate 21 provides stable support and fixation for the filter screen 22, ensuring that the filter screen 22 does not loosen or shift in the dust removal box 30, ensuring the stability of the filtering effect. The dust outlet pipe 20 discharges clean air after filtering treatment from the dust removal box 30, purifying the air around the tunneling machine and providing a good working environment for the operator.

[0037] With reference to Figure 5 and Figure 6 , the bottom side of the dust removal box 30 is provided with a disassembly assembly for connecting plate 21, the disassembly assembly includes two installation shells 24, the top of the two installation shells 24 is fixedly connected to the bottom of the dust removal box 30, the inside of the installation shell 24 is provided with an installation slot 25, the inner wall of the installation slot 25 is slidably connected with a moving plate 26, one end of the moving plate 26 is fixedly connected with a clamping column 27, the other end of the moving plate 26 is fixedly connected with a pull rod 28, the outside of the pull rod 28 is sleeved with a spring three 29, the shape of the clamping column 27 matches the shape of the clamping groove 23, the outside of the two clamping columns 27 is respectively inserted and matched with the inner wall of the corresponding clamping groove 23, one end of the two spring threes 29 is respectively fixedly connected to one side of the corresponding moving plate 26, the other end of the two spring threes 29 is respectively fixedly connected to the inner wall of the corresponding installation slot 25.

[0038] Specifically, the mounting shell 24 is fixed at the bottom of the dust removal box 30, providing a stable mounting base and support for disassembling other components of the assembly, ensuring that the disassembling assembly does not shake or shift during operation. The mounting groove 25 provides a sliding track for the moving plate 26, ensuring that the moving plate 26 can move smoothly in the predetermined direction when pulled by the pull rod 28, ensuring that the clamping column 27 can be accurately inserted or removed from the clamping groove 23. The moving plate 26 serves as a connection and force transmission, allowing the pull rod 28 to be pulled to move the clamping column 27. The cooperation of the clamping column 27 and the clamping groove 23 can firmly fix the connecting plate 21 on the dust removal box 30, ensuring that the filter screen 22 does not loosen or fall off during operation, ensuring the stability of the dust removal effect. The pull rod 28 provides an easy-to-use handle for the operator, allowing easy control of the movement of the clamping column 27 by pulling the pull rod 28, achieving the disassembly and installation of the filter screen 22. The spring 29 can tightly clamp the clamping column 27 into the clamping groove 23, ensuring the stability of the connecting plate 21 and the filter screen 22 during operation.

[0039] Referring to Figure 1 , Figure 2 and Figure 3 The top of the adapter plate 3 is equipped with a damper 13 on both sides, and the top end of the damper 13 is fixedly connected to the bottom of the V-shaped baffle 5.

[0040] Specifically, when the V-shaped baffle 5 is impacted by the falling of the top ore, it will move up and down and vibrate. The damper 13 can effectively suppress this vibration, reducing the shaking amplitude of the V-shaped baffle 5, making the protection device more stable. This helps to ensure that the protection device does not lose balance or undergo severe displacement when subjected to impact, thereby continuously and effectively protecting the roadheader body 1.

[0041] Working principle: When the top ore falls, it will first hit the V-shaped baffle 5, and the V-shaped baffle 5 will be compressed downward after being impacted. At this time, the spring 7 outside the telescopic rod 4 is compressed, and the spring 7 generates elastic force through deformation, which plays a buffering role and reduces the impact on the tunneling machine body 1, providing protection for the tunneling machine. At the same time, the connecting block 8 outside the telescopic rod 4 moves downward with the telescopic rod 4, and the connecting block 8 drives the two connecting rods 9 to rotate, which in turn pushes the sliding block 10 to slide in the inner wall of the fixed shell 12. The two sliding blocks 10 are compressed and generate elastic force through deformation, further enhancing the buffering effect. In addition, the multiple rollers 6 on both sides of the top of the V-shaped baffle 5 can reduce friction when the ore falls, making it easier for the ore to slide down and avoiding accumulation on the V-shaped baffle 5. When the V-shaped baffle 5 is impacted and moves up and down, the damper 13 can suppress vibration and reduce shaking, making the V-shaped baffle 5 more stable. It can effectively absorb the impact force caused by the top ore falling, greatly reducing the direct impact on the tunneling machine body 1, protecting the key components of the tunneling machine from damage, prolonging the service life of the equipment, and reducing maintenance costs.

[0042] When the tunneling machine body 1 is working, a large amount of dust will be generated, and the air extractor 14 will start at this time. The air extractor 14 sucks the dust-laden air through the hose 15, dust removal shell 16 and dust removal pipe 17, and the dust cover 18 expands the dust collection range and improves the dust collection efficiency. The dust-laden air is transported to the dust removal box 30 through the conveying pipe 19. The air is filtered by the two filter screens 22 in the dust removal box 30, and the dust is intercepted on the filter screen 22. The filtered air is discharged from the dust outlet pipe 20. It can effectively remove the dust generated during the operation of the tunneling machine body 1, greatly reducing the risk of operators inhaling dust and protecting the operators.

[0043] When it is necessary to disassemble the filter screen 22 for cleaning or replacement, pull the pull rod 28, which drives the moving plate 26 to slide in the installation slot 25, and the moving plate 26 drives the clamping column 27 to disengage from the clamping slot 23. At this time, the spring 29 is compressed, and when the clamping column 27 is completely disengaged from the clamping slot 23, the connecting plate 21 and the filter screen 22 can be pulled out from the dust removal box 30 for cleaning or replacement. When installing the filter screen 22, pull the pull rod 28 to make the clamping column 27 enter the installation slot 25, then insert the filter screen 22 on the connecting plate 21 into the dust removal box 30, and loosen the pull rod 28. Under the action of the elastic force of the spring 29, the clamping column 27 reinserts into the clamping slot 23, fixing the connecting plate 21 and the filter screen 22. Compared with the fixing method using multiple bolts, it is more convenient and the structure is reasonable, which is convenient for people to use.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A shield for a heading machine for use in coal mining, comprising a heading machine body (1), characterised in that: The top four corners of the tunneling machine body (1) are fixedly connected with support rods (2), the top of the support rod (2) is fixedly connected with an adapter plate (3), the top four corners of the adapter plate (3) are fixedly connected with telescopic rods (4), the top of the telescopic rod (4) is fixedly connected with a V-shaped baffle (5), the top of the V-shaped baffle (5) is rotatably connected with a plurality of rollers (6), the outside of the telescopic rod (4) is sleeved with a spring (7), one side of the outside of the telescopic rod (4) is fixedly connected with a connecting block (8), the connecting block (8) is rotatably connected with two connecting rods (9), the top of the adapter plate (3) is fixedly connected with a fixed shell (12), the inner wall of the fixed shell (12) is slidably connected with two sliding blocks (10), the corresponding two sliding blocks (10) are fixedly connected with a spring (11), and the bottom of the adapter plate (3) is provided with a dust removal assembly.

2. The machine guard for use in coal mining tunneling according to claim 1, characterized in that: The dust removal assembly comprises an air extractor (14), the air extractor (14) is installed on one side of the bottom of the adapter plate (3), the input end of the air extractor (14) is fixedly connected with a hose (15), one end of the hose (15) away from the air extractor (14) is fixedly connected with a dust removal shell (16), the outer side of the dust removal shell (16) is fixedly connected to the outer front side of the tunneling machine body (1), the outer sides of the dust removal shell (16) are fixedly connected with dust removal pipes (17), one end of the dust removal pipe (17) away from the dust removal shell (16) is fixedly connected with a dust collection cover (18), the output end of the air extractor (14) is fixedly connected with a conveying pipe (19), one side of the bottom of the adapter plate (3) is fixedly connected with a dust removal box (30), the inner wall of the dust removal box (30) is inserted with two filter screens (22), the bottom of the filter screen (22) is fixedly connected with a connecting plate (21), the outer side of the connecting plate (21) is provided with a clamping groove (23), one side of the bottom of the dust removal box (30) is provided with a dismounting assembly, and the dismounting assembly is used for dismounting the connecting plate (21).

3. The machine guard for use in coal mining tunneling according to claim 2, characterized in that: The conveying pipe (19) is fixedly connected with the outer side of the dust removal box (30) away from the air extractor (14), and the dust removal box (30) is fixedly connected with a dust outlet pipe (20) away from the air extractor (14).

4. The machine guard for use in coal mining tunneling according to claim 2, characterized in that: The dismounting assembly comprises two mounting shells (24), the top of the two mounting shells (24) is fixedly connected to the bottom of the dust removal box (30), the inside of the mounting shell (24) is provided with a mounting groove (25), the inside of the mounting groove (25) is slidably connected with a moving plate (26), one end of the moving plate (26) is fixedly connected with a clamping column (27), the other end of the moving plate (26) is fixedly connected with a pull rod (28), and the outside of the pull rod (28) is sleeved with a spring (29).

5. The machine guard for use in coal mining tunneling according to claim 4, characterized in that: The shape of the clamping column (27) matches the shape of the clamping groove (23), and the outside of the two clamping columns (27) is respectively inserted into the inner wall of the corresponding clamping groove (23).

6. The machine guard for use in coal mining tunneling according to claim 4, characterized in that: One end of two spring threes (29) is fixedly connected to one side of the corresponding moving plate (26) respectively, and the other end of two spring threes (29) is fixedly connected to the inner wall of the corresponding mounting slot (25) respectively.

7. The machine guard for use in coal mining tunneling according to claim 1, characterized in that: The bottom end of the plurality of connecting rods (9) is rotatably connected to the outer side of the corresponding sliding block (10), and the bottom end of the plurality of spring ones (7) is fixedly connected to the top of the connecting plate (3).

8. The machine guard for use in coal mining tunneling according to claim 1, characterized in that: The top of the connecting plate (3) is provided with a damper (13) on both sides, and the top of the damper (13) is fixedly connected to the bottom of the V-shaped baffle (5).

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