Positioning and cutting device of slow heavy load mine unmanned tunneling vehicle and system thereof

Abstract

This invention provides a positioning and cutting device and system for a slow-speed, heavy-duty unmanned mining tunneling machine, relating to the field of mining tunneling machines. It includes a frame with mounting bases fixedly connected to it. Cutting heads are provided at both ends of the mounting bases, and a protective mechanism is provided on the frame. When protection of the cutting heads is required, the positioning and cutting device and system of this slow-speed, heavy-duty unmanned mining tunneling machine activates a dual-head motor, which drives two movable sleeves to move outwards, causing the two protective sleeves to move away from each other. Then, a hydraulic cylinder is activated, extending and rotating a rotating rod until the two protective sleeves move to the outside of the two cutting heads. Finally, the dual-head motor is reversed, causing the two protective sleeves to move closer together until they completely cover the two cutting heads. This provides quick and convenient protection for the two cutting heads of the dual-head cutting tunneling machine, thereby preventing safety hazards caused by the cutting heads.

Description

Technical Field

[0001] This invention relates to the field of mining tunneling vehicle technology, specifically to a positioning and cutting device and system for a slow-speed, heavy-duty unmanned mining tunneling vehicle. Background Technology

[0002] Unmanned tunneling vehicles (UTVs) are common equipment used in mine or tunnel operations, generally available in single-head and double-head cutting configurations. The cutting head of a UTV is the working mechanism that directly participates in cutting. Cutting teeth are arranged on the cutting head according to a specific pattern for crushing coal and rock. Both blade-type and pick-type cutting teeth have sharp angles, posing a significant risk of injury to workers. Even when the cutting head is stationary, workers can be injured by bumping into it. Therefore, the exposed cutting head presents a serious safety hazard to the tunneling machine. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a positioning and cutting device and system for a slow-speed, heavy-duty unmanned mining tunneling vehicle, which solves the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a positioning and cutting device for a slow-speed heavy-duty unmanned mining tunneling vehicle, comprising a frame, a mounting base fixedly connected to the frame, a cutting head provided at both ends of the mounting base, and a protective mechanism provided on the frame.

[0007] Preferably, the protective mechanism includes a first fixed seat, a second fixed seat, a hydraulic cylinder, a fixed shaft, a rotating rod, a piston plate, two protective cylinders, and a drive assembly. The first fixed seat and the second fixed seat are both fixedly connected to the top of the frame. One end of the rotating rod is fixedly connected to the piston plate, and the other end of the rotating rod is rotatably connected to the first fixed seat. A fixed shaft is fixedly mounted on the rotating rod. One end of the hydraulic cylinder is rotatably connected to the second fixed seat, and the other end of the hydraulic cylinder is rotatably connected to the fixed shaft. Protective cylinders are symmetrically arranged on both sides of the piston plate, and a drive assembly for driving the movement of the protective cylinders is provided on the piston plate.

[0008] Preferably, the protective cylinder is cylindrical, and the interior of the protective cylinder has a receiving groove that matches the shape of the cutting head.

[0009] Preferably, the drive assembly includes a dual-head motor, two screws, and two movable sleeves. The dual-head motor is fixedly connected to the middle of the piston plate. Each of the two output ends of the dual-head motor is fixedly connected to a screw. The axial direction of the screw is parallel to the axial direction of the protective cylinder, and the thread directions of the two screws are opposite. The movable sleeves have threaded holes that match the screws, and the two movable sleeves are threaded onto the two screws respectively. The movable sleeves are connected to the protective cylinder. When the output end of the dual-head motor rotates in the forward direction, the two movable sleeves move outward synchronously. When the output end of the dual-head motor rotates in the reverse direction, the two movable sleeves move inward synchronously.

[0010] Preferably, the dual-head motor is provided with a protective cover, and the protective cover is fixedly connected to the piston plate.

[0011] Preferably, the piston plate is shaped like an arc.

[0012] Preferably, a pressure chamber is provided between the movable sleeve and the protective cylinder. The top of the pressure chamber is fixedly connected to the movable sleeve, and the bottom of the pressure chamber is fixedly connected to the protective cylinder. An opening matching the piston plate is opened on the side of the pressure chamber, and the piston plate engages with the pressure chamber. Multiple equally spaced protective airbags are fixedly connected inside the protective cylinder. The protective airbags are annular, and when fully inflated, they fit snugly against the cutting head. A vent is provided on the protective cylinder, and the two ends of the vent connect the pressure chamber and the protective airbags. When the two movable sleeves move outward synchronously, the piston plate exits from the pressure chamber, thereby drawing gas from the protective airbags into the pressure chamber, making the protective airbags smaller. When the two movable sleeves move inward synchronously, the piston plate moves into the pressure chamber, thereby forcing gas from the pressure chamber into the protective airbags, making the protective airbags larger.

[0013] Preferably, a sealing ring is fixedly connected to the opening of the pressure chamber, and a reinforcing layer is fixedly connected to the outside of the protective airbag.

[0014] A positioning and cutting system for a slow-speed heavy-duty unmanned mining tunneling vehicle includes a positioning and cutting device for the slow-speed heavy-duty unmanned mining tunneling vehicle.

[0015] (III) Beneficial Effects

[0016] This invention provides a positioning and cutting device and system for a slow-speed, heavy-duty unmanned mining tunneling vehicle.

[0017] It has the following beneficial effects:

[0018] 1. The positioning and cutting device and system of this slow-speed heavy-duty unmanned mining tunneling vehicle, when it is necessary to protect the cutting head, activates the dual-head motor, which drives two moving sleeves to move outward, so that the two protective cylinders move away from each other. Then, the hydraulic cylinder is activated, and the hydraulic cylinder extends to drive the rotating rod to rotate until the two protective cylinders move to the outside of the two cutting heads. Then, the dual-head motor is controlled to reverse, so that the two protective cylinders move closer to each other until the two protective cylinders completely cover the two cutting heads. This can quickly and conveniently protect the two cutting heads of the dual-head cutting tunneling machine, thereby preventing safety hazards caused by the cutting head and effectively ensuring the safety of the operators.

[0019] 2. The positioning and cutting device and its system of this slow-speed heavy-duty unmanned mining tunneling vehicle, through the setting of a pressure chamber, piston plate and protective airbag, when the two protective cylinders are completely covered on the cutting head, the two protective cylinders will move closer to each other, causing the piston plate to move into the pressure chamber. The piston plate then forces the gas in the pressure chamber into the protective airbag, at which time the protective airbag inflates and becomes larger, so that the protective airbag fits closely to the cutting head. Thus, when the protective cylinder completely covers the cutting head, the annular protective airbag provides further protection for the cutting head. This not only further improves the protection effect, but also prevents the cutting head from directly contacting the protective cylinder during vehicle movement, effectively extending the service life of the protective cylinder. When the protective airbag is damaged individually, it can be easily replaced separately, resulting in good performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0023] Figure 4 This is a schematic diagram of the protective cylinder structure of the present invention;

[0024] Figure 5 This is a cross-sectional view of the protective cylinder structure of the present invention.

[0025] In the diagram: 1. Frame, 2. Mounting base, 3. Cutting head, 4. Rotating rod, 5. Hydraulic cylinder, 6. First fixed base, 7. Second fixed base, 8. Fixed shaft, 9. Protective cylinder, 10. Air pressure chamber, 11. Moving sleeve, 12. Dual-head motor, 13. Piston plate, 14. Screw, 15. Vent hole, 16. Protective airbag. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] This invention provides a positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle, such as... Figure 1-5 As shown, it includes a frame 1, a mounting base 2 fixedly connected to the frame 1, a cutting head 3 at both ends of the mounting base 2, and a protective mechanism on the frame 1.

[0028] The protective mechanism includes a first fixed seat 6, a second fixed seat 7, a hydraulic cylinder 5, a fixed shaft 8, a rotating rod 4, a piston plate 13, two protective cylinders 9, and a drive assembly. The first fixed seat 6 and the second fixed seat 7 are both fixedly connected to the top of the frame 1. One end of the rotating rod 4 is fixedly connected to the piston plate 13, and the other end of the rotating rod 4 is rotatably connected to the first fixed seat 6. The rotating rod 4 is fixedly mounted with the fixed shaft 8. One end of the hydraulic cylinder 5 is rotatably connected to the second fixed seat 7, and the other end of the hydraulic cylinder 5 is rotatably connected to the fixed shaft 8. Protective cylinders 9 are symmetrically arranged on both sides of the piston plate 13, and a drive assembly for driving the movement of the protective cylinders 9 is provided on the piston plate 13.

[0029] The protective cylinder 9 is cylindrical, and the interior of the protective cylinder 9 has a receiving groove that matches the shape of the cutting head 3.

[0030] The drive assembly includes a dual-head motor 12, two screws 14, and two movable sleeves 11. The dual-head motor 12 is fixedly connected to the middle of the piston plate 13. Both output ends of the dual-head motor 12 are fixedly connected to screws 14. The axial direction of the screws 14 is parallel to the axial direction of the protective cylinder 9, and the thread directions of the two screws 14 are opposite. The movable sleeves 11 have threaded holes that match the screws 14, and the two movable sleeves 11 are threaded onto the two screws 14 respectively. The movable sleeves 11 are connected to the protective cylinder 9. When the output end of the dual-head motor 12 rotates in the forward direction, the two movable sleeves 11 move outward synchronously. When the output end of the dual-head motor 12 rotates in the reverse direction, the two movable sleeves 11 move inward synchronously.

[0031] When protection of the cutting head 3 is required, the dual-head motor 12 is turned on. The dual-head motor 12 drives the two moving sleeves 11 to move outward, so that the two protective cylinders 9 move away from each other. Then, the hydraulic cylinder 5 is turned on. The hydraulic cylinder 5 extends and drives the rotating rod 4 to rotate until the two protective cylinders 9 move to the outside of the two cutting heads 3. Then, the dual-head motor 12 is controlled to reverse so that the two protective cylinders 9 move closer to each other until the two protective cylinders 9 completely cover the two cutting heads 3. This can quickly and conveniently protect the two cutting heads 3 of the dual-head cutting tunneling machine, thereby preventing safety hazards caused by the cutting heads 3 and effectively ensuring the safety of the operators.

[0032] The dual-head motor 12 is equipped with a protective cover, and the protective cover is fixedly connected to the piston plate 13.

[0033] The piston plate 13 is designed to be arc-shaped.

[0034] A pressure chamber 10 is provided between the movable sleeve 11 and the protective cylinder 9. The top of the pressure chamber 10 is fixedly connected to the movable sleeve 11, and the bottom of the pressure chamber 10 is fixedly connected to the protective cylinder 9. An opening matching the piston plate 13 is opened on the side of the pressure chamber 10, and the piston plate 13 piston engages with the pressure chamber 10. Multiple equally spaced protective airbags 16 are fixedly connected inside the protective cylinder 9. The protective airbags 16 are annular, and when the protective airbags 16 are fully inflated, they fit against the cutting head 3. An opening is provided on the protective cylinder 9. There is a vent 15, and the two ends of the vent 15 connect the pressure chamber 10 and the protective airbag 16. When the two movable sleeves 11 move outward synchronously, the piston plate 13 exits from the pressure chamber 10, thereby causing the pressure chamber 10 to draw the gas in the protective airbag 16 into the pressure chamber 10. At this time, the protective airbag 16 becomes smaller. When the two movable sleeves 11 move inward synchronously, the piston plate 13 moves into the pressure chamber 10, thereby causing the piston plate 13 to force the gas in the pressure chamber 10 into the protective airbag 16. At this time, the protective airbag 16 inflates and becomes larger.

[0035] With the arrangement of the pressure chamber 10, piston plate 13, and protective airbag 16, when the two protective cylinders 9 are completely fitted onto the cutting head 3, the two protective cylinders 9 will approach each other, causing the piston plate 13 to push into the pressure chamber 10. Thus, the piston plate 13 forces the gas in the pressure chamber 10 into the protective airbag 16. At this time, the protective airbag 16 inflates and becomes larger, so that the protective airbag 16 fits closely to the cutting head 3. Thus, when the protective cylinder 9 completely covers the cutting head 3, the annular protective airbag 16 provides further protection for the cutting head 3. This not only further improves the protective effect, but also prevents the cutting head 3 from directly contacting the protective cylinder 9 during vehicle movement, effectively extending the service life of the protective cylinder 9. When the protective airbag 16 is damaged alone, it can be easily replaced separately, resulting in good performance.

[0036] A sealing ring is fixedly connected to the opening of the air pressure chamber 10, and a reinforcing layer is fixedly connected to the outside of the protective airbag 16.

[0037] A positioning and cutting system for a slow-speed heavy-duty unmanned mining tunneling vehicle includes a positioning and cutting device for the slow-speed heavy-duty unmanned mining tunneling vehicle.

[0038] Working principle: When protection of the cutting head 3 is required, the dual-head motor 12 is turned on. The dual-head motor 12 drives the two moving sleeves 11 to move outward, so that the two protective cylinders 9 move away from each other. Then, the hydraulic cylinder 5 is turned on, and the hydraulic cylinder 5 extends to drive the rotating rod 4 to rotate until the two protective cylinders 9 move to the outside of the two cutting heads 3. Then, the dual-head motor 12 is controlled to reverse, so that the two protective cylinders 9 move closer to each other until the two protective cylinders 9 completely cover the two cutting heads 3. This can quickly and conveniently protect the two cutting heads 3 of the dual-head cutting tunneling machine, thereby preventing safety hazards caused by the cutting heads 3 and effectively ensuring the safety of the operators.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle, comprising a frame (1), characterized in that: A mounting base (2) is fixedly connected to the frame (1), and a cutting head (3) is provided at both ends of the mounting base (2). A protective mechanism is provided on the frame (1). The protective mechanism includes a first fixed seat (6), a second fixed seat (7), a hydraulic cylinder (5), a fixed shaft (8), a rotating rod (4), a piston plate (13), two protective cylinders (9), and a drive assembly. The first fixed seat (6) and the second fixed seat (7) are both fixedly connected to the top of the frame (1). One end of the rotating rod (4) is fixedly connected to the piston plate (13), and the other end of the rotating rod (4) is rotatably connected to the first fixed seat (6). A fixed shaft (8) is fixed on the rotating rod (4). One end of the hydraulic cylinder (5) is rotatably connected to the second fixed seat (7), and the other end of the hydraulic cylinder (5) is rotatably connected to the fixed shaft (8). Protective cylinders (9) are symmetrically arranged on both sides of the piston plate (13). A drive assembly for driving the protective cylinders (9) is provided on the piston plate (13), and the interior of the protective cylinders (9) is provided with a receiving groove that matches the shape of the cutting head (3). The drive assembly includes a dual-head motor (12), two screws (14), and two movable sleeves (11). The dual-head motor (12) is fixedly connected to the middle of the piston plate (13). Both output ends of the dual-head motor (12) are fixedly connected to screws (14). The axial direction of the screws (14) is parallel to the axial direction of the protective cylinder (9), and the thread directions of the two screws (14) are opposite. The movable sleeves (11) have screw holes that match the screws (14), and the two movable sleeves (11) are threaded onto the two screws (14) respectively. The movable sleeves (11) are connected to the protective cylinder (9). When the output end of the dual-head motor (12) rotates in the forward direction, the two movable sleeves (11) move outward synchronously. When the output end of the dual-head motor (12) rotates in the reverse direction, the two movable sleeves (11) move inward synchronously. A pressure chamber (10) is provided between the movable sleeve (11) and the protective cylinder (9). The top of the pressure chamber (10) is fixedly connected to the movable sleeve (11), and the bottom of the pressure chamber (10) is fixedly connected to the protective cylinder (9). An opening matching the piston plate (13) is provided on the side of the pressure chamber (10), and the piston plate (13) is piston-fitted into the pressure chamber (10). Multiple equally spaced protective airbags (16) are fixedly connected inside the protective cylinder (9). The protective airbags (16) are set as annular, and when the protective airbags (16) are fully inflated, the protective airbags (16) are in close contact with the cutting head (3). (9) has a vent (15) and the two ends of the vent (15) connect the pressure chamber (10) and the protective airbag (16). When the two moving sleeves (11) move outwards in sync, the piston plate (13) exits from the pressure chamber (10), so that the pressure chamber (10) draws the gas in the protective airbag (16) into the pressure chamber (10). At this time, the protective airbag (16) becomes smaller. When the two moving sleeves (11) move inwards in sync, the piston plate (13) pushes into the pressure chamber (10), so that the piston plate (13) presses the gas in the pressure chamber (10) into the protective airbag (16). At this time, the protective airbag (16) is inflated and becomes larger.

2. The positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle according to claim 1, characterized in that: The protective cylinder (9) is configured as a cylinder.

3. The positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle according to claim 2, characterized in that: The dual-head motor (12) is provided with a protective cover, and the protective cover is fixedly connected to the piston plate (13).

4. The positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle according to claim 3, characterized in that: The piston plate (13) is designed to be arc-shaped.

5. The positioning and cutting device for a slow-speed, heavy-duty unmanned mining tunneling vehicle according to claim 4, characterized in that: A sealing ring is fixedly connected to the opening of the air pressure chamber (10), and a reinforcing layer is fixedly connected to the outside of the protective airbag (16).

6. A positioning and cutting system for a slow-speed, heavy-duty unmanned mining tunneling vehicle, characterized in that: The positioning and cutting device includes the slow-speed heavy-duty unmanned mining tunneling vehicle according to any one of claims 1-5.

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