A cutting device for a combined anchor and trenching machine

Abstract

The application discloses a kind of cutting device for anchor protection integrated machine, it is related to coal mine tunneling technical field, including machine body, machine body is rotatably connected with cutting arm, cutting arm is provided with cutting roller, the top of machine body is provided with the protection mechanism for knocking the loose rock mass of roadway top, by the setting of protection mechanism, using the thrust generated when cutting arm swings, under the cooperation with power assembly, so that cutting arm and cutting roller every time up and down swing completes once cutting work, will drive knocking head to carry out once knocking work to roof, so that loose rock stratum falls off in advance and under the guidance of guide plate, slide to one side of machine body, not only effectively prevent the rock mass from falling to the upper part of machine body and causing damage to machine body, but also greatly avoid the problem that loose rock mass affects support effect, increase the controllability of loose rock mass falling, improve the stability and safety of device cutting.

Description

Technical Field

[0001] This invention relates to the field of coal mine tunneling technology, specifically to a cutting device for an integrated tunneling, anchoring, and protection machine. Background Technology

[0002] The cutting device is the core working component of the tunneling and anchoring machine, mainly used for crushing and tunneling rock strata or coal and rock in underground engineering such as coal mines and tunnels. It is a key structure that integrates cutting, crushing, and loading functions, and directly affects the working efficiency and reliability of the equipment.

[0003] When the existing tunneling, anchoring and support integrated machine is in use, the cutting device drives the cutting arm to swing up and down through the drive system, which drives the rotating cutting head to contact the rock strata. Then, the cutting teeth on the cutting head break the rock strata by impact and shearing. The broken rock strata are transported to the outside in real time through the integrated conveying system to ensure the efficiency and safety of continuous operation. At the same time, the support system will also lay protective netting on the top of the cut roadway.

[0004] While the aforementioned cutting device can effectively cut the rock strata, the resulting top plate area will cause a redistribution of stress. Therefore, some loose rock strata may be distributed in the cut top plate. In addition, since the installation speed of the subsequent support system lags behind the cutting speed, loose rock blocks may fall onto the machine body due to the vibration generated during cutting before the support system is installed, causing damage to the equipment. Furthermore, if the loose rock blocks do not fall, when the support system is installed, the collapse of the loose rock blocks will compress the metal mesh, causing the mesh to stretch and deform, affecting the subsequent support effect.

[0005] Therefore, this invention proposes a cutting device for an integrated excavation, anchoring, and protection machine to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose a cutting device for an integrated excavation, anchoring and support machine, so as to solve the problem in the prior art that there are loose rock blocks on the top of the rock layer after cutting, and the falling of loose rock blocks will damage the equipment or the subsequent support effect.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for an integrated tunneling, anchoring and protection machine, comprising a machine body, a cutting arm rotatably connected to the machine body, a cutting roller provided on the cutting arm, and a protective mechanism for striking loose rock blocks at the top of the machine body.

[0008] The protective mechanism includes a mounting plate, a power assembly on the mounting plate, a guide plate fixedly connected to the top of the mounting plate, a plurality of sliding columns slidably connected to the guide plate, and each sliding column penetrating the guide plate; a support rod fixedly connected to the top of the sliding column; and a plurality of striking heads fixedly connected to the top of the support rod.

[0009] The cutting arm can drive the power component when it swings up and down, and when the power component is driven, it can push the sliding column to slide.

[0010] Preferably, the power assembly includes two push plates, each of which is slidably connected to a mounting plate. A push column is rotatably connected to the opposite side of each of the two push plates. A stop block is fixedly connected to the side of each push plate near the push column, and the stop block contacts the push column. Two support frames are fixedly connected to the top of the mounting plate. A linkage plate is rotatably connected to the top of each support frame. An arc-shaped guide column is fixedly connected to the side of each support frame away from the push column. A return spring is sleeved on the outer surface of the arc-shaped guide column, and the return spring is located below the linkage plate.

[0011] Preferably, a limiting block is fixedly connected to the push plate, and the bottom of the limiting block is in contact with the mounting plate.

[0012] Preferably, when the push plate slides upward, the linkage plate can be driven to rotate through the cooperation of the push column and the stop block.

[0013] Preferably, the protective mechanism further includes a first ball bearing, which is fixedly connected to the bottom of the sliding column and contacts the upper surface of the linkage plate.

[0014] Preferably, the striking head is cone-shaped.

[0015] Preferably, the system also includes a material guiding mechanism for guiding the detached rock fragments. The material guiding mechanism includes two top columns, each of which is fixedly connected to each push plate. The guide plate has two through holes, through which the top column can pass. A material guiding plate is rotatably connected to the top of the guide plate. The material guiding plate has multiple sliding holes, through which the sliding column passes.

[0016] Preferably, the guide plate is inclined.

[0017] Preferably, when the top column moves upward, it can drive the guide plate to rotate.

[0018] Preferably, the material guiding mechanism further includes two second balls, each of which is rotatably connected to the top of each top column. When the second ball moves upward, it can contact the bottom of the material guiding plate.

[0019] Compared with the prior art, the present invention provides a cutting device for an integrated tunneling, anchoring, and protection machine, which has the following features:

[0020] Beneficial effects:

[0021] 1. By utilizing the thrust generated when the cutting arm swings, in conjunction with the power unit, the cutting arm and cutting roller drive the striking head to strike the top plate once each time they complete a cutting operation. This causes loose rock layers to fall off in advance and slide to one side of the machine under the guidance of the guide plate. This not only effectively prevents rock from falling onto the upper part of the machine and causing damage, but also greatly avoids the problem of loose rock blocks affecting the support effect. It increases the controllability of loose rock block falling and improves the stability and safety of the device during cutting.

[0022] 2. By configuring the power components, the striking power of the striking head does not require an additional drive source, thus saving power resources and reducing costs. At the same time, by utilizing the cooperation between the push plate and the cutting arm, and the cooperation between the push column, the stop block, and the linkage plate, with the length of the linkage plate near the push column being greater than the length near the first ball bearing, it is easier for the push plate to drive the push column to push the linkage plate. This makes it easier for the cutting arm to swing and push the push plate upward, thereby reducing the impact on the cutting arm driving the cutting roller during cutting and ensuring the stability of the device during use.

[0023] 3. Through the setting of the material guiding mechanism, with the cooperation of the cutting arm and the push plate, the material guiding plate swings up and down intermittently. The vibration generated by the up and down swing can effectively prevent the sticky rock layers that fall from the plate from remaining on the surface of the material guiding plate, thus improving the smoothness of guiding loose rock blocks. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 For the present invention Figure 1 Partial sectional view of the structure;

[0026] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0027] Figure 4 This is a three-dimensional structural diagram of the support frame in this invention;

[0028] Figure 5 This is a three-dimensional structural diagram of the support rod in this invention;

[0029] Figure 6 This is a cross-sectional view of the flow guide section in this invention;

[0030] Figure 7 This is a three-dimensional structural diagram of the top of the guide plate of the present invention;

[0031] Figure 8 For the present invention Figure 1 Partial 3D structural diagram.

[0032] In the picture:

[0033] 1. Machine body; 11. Cutting arm; 12. Cutting roller;

[0034] 201. Mounting plate; 202. Guide plate; 203. Sliding column; 2031. First ball bearing; 204. Support rod; 205. Striking head; 206. Push plate; 2061. Limiting block; 207. Push column; 2071. Stop block; 208. Support frame; 209. Linkage plate; 210. Arc-shaped guide column; 211. Return spring;

[0035] 301, Top column; 3011, Second ball bearing; 302, Perforation; 303, Guide plate; 304, Sliding hole. Detailed Implementation

[0036] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0037] like Figures 1 to 8 As shown, this embodiment provides a cutting device for an integrated tunneling, anchoring, and protection machine, including a body 1, a cutting arm 11 rotatably connected to the body 1, a cutting roller 12 provided on the cutting arm 11, and a protective mechanism for striking loose rock blocks on the top of the body 1. The protective mechanism includes a mounting plate 201, a power assembly provided on the mounting plate 201, a guide plate 202 fixedly connected to the top of the mounting plate 201, a plurality of sliding columns 203 slidably connected to the guide plate 202, and each sliding column 203 penetrating the guide plate 202. A support rod 204 is fixedly connected to the top of the sliding column 203, and a plurality of striking heads 205 are fixedly connected to the top of the support rod 204. When the cutting arm 11 swings up and down, it can drive the power assembly. When the power assembly is driven, it can push the sliding column 203 to slide.

[0038] The power assembly includes two push plates 206, each of which is slidably connected to the mounting plate 201. Push columns 207 are rotatably connected to the opposite sides of the two push plates 206. A stop block 2071 is fixedly connected to the side of the push plate 206 near the push column 207, and the stop block 2071 contacts the push column 207. Two support frames 208 are fixedly connected to the top of the mounting plate 201. A linkage plate 209 is rotatably connected to the top of each support frame 208. An arc-shaped guide column 210 is fixedly connected to the side of the support frame 208 away from the push column 207. A return spring 211 is sleeved on the outer surface of the arc-shaped guide column 210, and the return spring 211 is located below the linkage plate 209.

[0039] A limiting block 2061 is fixedly connected to the push plate 206. The bottom of the limiting block 2061 is in contact with the mounting plate 201. When the push plate 206 slides upward, the linkage plate 209 can be driven to rotate through the cooperation of the push column 207 and the stop block 2071. The protective mechanism also includes a first ball bearing 2031, which is fixedly connected to the bottom of the sliding column 203. The first ball bearing 2031 is in contact with the upper surface of the linkage plate 209. The striking head 205 is set to be conical.

[0040] The length of the linkage plate 209 near the push column 207 is greater than the length near the first ball bearing 2031. This makes it easier for the push plate 206 to drive the push column 207 to push the linkage plate 209, which in turn makes it easier for the cutting arm 11 to swing and push the push plate 206 to slide upward. This reduces the impact on the cutting arm 11 and the cutting roller 12 during the cutting operation.

[0041] Both the cutting arm 11 and the cutting roller 12 are connected to an external first drive source and a second drive source. The first drive source can drive the cutting arm 11 to swing up and down, and the second drive source can drive the cutting roller 12 to rotate, thereby completing the cutting work of the rock strata through their cooperation.

[0042] By limiting the position of the limiting block 2061, when the push plate 206 is not subjected to external force, there will be an appropriate distance between the push plate 206 and the cutting arm 11. This will cause the push plate 206 to slide upward when the cutting arm 11 swings upward at a set angle, thereby reducing the contact time between the cutting arm 11 and the bottom of the push plate 206 and reducing the impact of the push plate 206 on the cutting operation of the cutting arm 11.

[0043] The first ball bearing 2031 is designed so that when the linkage plate 209 pushes the sliding column 203 upward, the rotation of the first ball bearing 2031 can reduce the friction between the linkage plate 209 and the sliding column 203, and at the same time improve the smoothness of pushing the sliding column 203 upward.

[0044] Further examples:

[0045] It also includes a material guiding mechanism for guiding the detached rock fragments. The material guiding mechanism includes two top columns 301, each of which is fixedly connected to each push plate 206. Two through holes 302 are opened on the guide plate 202, and the top column 301 can pass through the adjacent through hole 302. A guide plate 303 is rotatably connected to the top of the guide plate 202. Multiple sliding holes 304 are opened on the guide plate 303, and the sliding column 203 passes through the adjacent sliding hole 304.

[0046] The guide plate 303 is inclined. When the top column 301 moves upward, it can drive the guide plate 303 to rotate. The guiding mechanism also includes two second balls 3011. Each second ball 3011 is rotatably connected to the top of each top column 301. When the second ball 3011 moves upward, it can contact the bottom of the guide plate 303.

[0047] The working principle of all the content in the above embodiments is as follows:

[0048] Before operation: Mounting plate 201 is installed above machine body 1. Push plate 206 and cutting arm 11 are on the same vertical line. Since stop block 2071 is located below push column 207, push column 207 can rotate upward but cannot rotate downward under the limit of stop block 2071.

[0049] The following explains the working principle and beneficial effects of protective mechanisms:

[0050] When the cutting arm 11 swings up and down, causing the cutting roller 12 to cut the rock strata, the upward swing of the cutting arm 11 gradually approaches the bottom of the push plate 206, thereby pushing the push plate 206 to slide upward. The upward sliding of the push plate 206 drives the push column 207 to move upward at the same time. The push column 207 pushes one end of the linkage plate 209 to rotate upward, thereby causing the other end of the linkage plate 209 to rotate downward under the guidance of the arc-shaped guide column 210. The sliding column 203 and the first ball bearing 2031 are moved away by gravity and follow the linkage plate 209 downward. The return spring 211 is gradually compressed. When the push column 207 pushes the linkage plate 209 to rotate at an appropriate angle, since one end of the linkage plate 209 makes an arc-shaped movement while the push column 207 makes a linear movement... Therefore, as the cutting arm 11 continues to rise, the push column 207 will move away from and be misaligned with the linkage plate 209. At this time, one end of the linkage plate 209 is not blocked by the push column 207. At this time, the compressed return spring 211 rebounds, causing the linkage plate 209 to rotate rapidly. Then, the linkage plate 209 moves away from the push column 207 and quickly pushes the sliding column 203 to rise, causing the sliding column 203 to drive the support rod 204 and the striking head 205 to rise rapidly. The rising striking head 205 will gradually approach the top rock layer and generate a striking force on the top rock layer. By striking, the relatively loose rock blocks can be shaken off from the top plate and slid along the guide plate 202 to the side of the machine body 1. They are then transported together with the cut rock layer through the integrated conveying system on the side of the machine body 1.

[0051] Furthermore, as the cutting arm 11 swings downward, it gradually releases support for the push plate 206. Under the influence of gravity, the push plate 206 gradually drives the push column 207 to fall. At this time, since the linkage plate 209 is in the reset state, when the push column 207 falls and approaches the linkage plate 209, the push column 207 will be resisted by the linkage plate 209 and rotate upward. Through rotation and the downward movement of the push plate 206, it gradually moves away from the linkage plate 209. Then, under the influence of gravity, it rotates back and re-engages with the stop block 2071.

[0052] By utilizing the thrust generated when the cutting arm 11 swings, in conjunction with the power unit, the cutting arm 11 and the cutting roller 12 drive the striking head 205 to strike the top plate once each time they complete a cutting operation. This causes the loose rock layer to fall off in advance and slide to one side of the machine body 1 under the guidance of the guide plate 202. This not only effectively prevents the rock from falling onto the upper part of the machine body 1 and causing damage, but also greatly avoids the problem of loose rock blocks affecting the support effect, increases the controllability of loose rock block falling, and improves the stability and safety of the device during cutting.

[0053] Furthermore, by configuring the power components, the striking power of the striking head 205 does not require an additional drive source, thus saving power resources and reducing costs. At the same time, by utilizing the cooperation between the push plate 206 and the cutting arm 11, and the cooperation between the push column 207, the stop block 2071, and the linkage plate 209, the length of the linkage plate 209 near the push column 207 is greater than the length near the first ball bearing 2031. This makes it easier for the push plate 206 to drive the push column 207 to push the linkage plate 209, and thus makes it easier for the cutting arm 11 to swing and push the push plate 206 to slide upward. This reduces the impact on the cutting arm 11 driving the cutting roller 12 during cutting operations and ensures the stability of the device during use.

[0054] The following describes the working principle and beneficial effects of the material guiding mechanism:

[0055] When the cutting arm 11 swings, causing the push plate 206 to slide upward, the push plate 206 drives the top column 301 to pass through the through hole 302, so that the second ball bearing 3011 contacts the guide plate 303 and pushes the guide plate 303 to rotate upward at a certain angle. When the push plate 206 resets, the top column 301 and the second ball bearing 3011 reset. At this time, the guide plate 303 resets simultaneously under the influence of gravity. Then, with the cooperation of the cutting arm 11 and the push plate 206, the guide plate 303 can swing up and down intermittently. The vibration generated by the up and down swing can effectively prevent the falling sticky rock layers from being stuck on the upper surface of the guide plate 303, improving the smoothness of guiding loose rock blocks.

[0056] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A cutting device for an integrated excavation, anchoring, and protection machine, comprising a body (1), wherein a cutting arm (11) is rotatably connected to the body (1), and a cutting roller (12) is provided on the cutting arm (11), characterized in that, The top of the machine body (1) is equipped with a protective mechanism for striking loose rock blocks at the top of the tunnel; The protective mechanism includes a mounting plate (201), on which a power assembly is provided. A guide plate (202) is fixedly connected to the top of the mounting plate (201). Multiple sliding columns (203) are slidably connected to the guide plate (202), and each sliding column (203) penetrates the guide plate (202). A support rod (204) is fixedly connected to the top of the sliding column (203), and multiple striking heads (205) are fixedly connected to the top of the support rod (204). The cutting arm (11) can drive the power component when it swings up and down, and when the power component is driven, it can push the sliding column (203) to slide.

2. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 1, characterized in that: The power assembly includes two push plates (206), each of which is slidably connected to the mounting plate (201). Push columns (207) are rotatably connected to opposite sides of the two push plates (206). A stop block (2071) is fixedly connected to the side of the push plate (206) near the push column (207), and the stop block (2071) is in contact with the push column (207). Two support frames (208) are fixedly connected to the top of the mounting plate (201), and a linkage plate (209) is rotatably connected to the top of each support frame (208). An arc-shaped guide column (210) is fixedly connected to the side of the support frame (208) away from the push column (207). A return spring (211) is sleeved on the outer surface of the arc-shaped guide column (210), and the return spring (211) is located below the linkage plate (209).

3. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 2, characterized in that: A limiting block (2061) is fixedly connected to the push plate (206), and the bottom of the limiting block (2061) is in contact with the mounting plate (201).

4. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 2, characterized in that: When the push plate (206) slides upward, the linkage plate (209) can be driven to rotate through the cooperation of the push column (207) and the stop block (2071).

5. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 1, characterized in that: The protective mechanism also includes a first ball bearing (2031), which is fixedly connected to the bottom of the sliding column (203) and contacts the upper surface of the linkage plate (209).

6. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 1, characterized in that: The striking head (205) is set in a conical shape.

7. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 1, characterized in that: It also includes a material guiding mechanism for guiding detached rock fragments. The material guiding mechanism includes two top columns (301), each of which is fixedly connected to each push plate (206). The guide plate (202) has two through holes (302), and the top column (301) can pass through the adjacent through hole (302). The top of the guide plate (202) is rotatably connected to a material guiding plate (303), and the material guiding plate (303) has multiple sliding holes (304). The sliding column (203) passes through the adjacent sliding hole (304).

8. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 7, characterized in that: The guide plate (303) is inclined.

9. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 8, characterized in that: When the top column (301) moves upward, it can drive the guide plate (303) to rotate.

10. The cutting device for an integrated tunneling, anchoring, and protection machine according to claim 9, characterized in that: The material guiding mechanism also includes two second balls (3011), each of which is rotatably connected to the top of each top post (301). When the second ball (3011) moves upward, it can contact the bottom of the guide plate (303).

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