Walking type coal mine tunnel anchor cable penetrating and installing booster

Abstract

The invention relates to a walking type coal mine tunnel anchor cable penetration assisting machine which comprises a vehicle body part, an anchor cable penetration executing part and a lifting connecting arm part. The vehicle body part comprises a walking chassis and a machine body; the lifting connecting arm part comprises a first supporting arm, a first supporting arm driving cylinder, a second supporting arm and a second supporting arm driving cylinder; the first supporting arm is connected with the front portion of the machine body and the second supporting arm and driven by the first supporting arm driving cylinder, and the second supporting arm is driven by the second supporting arm driving cylinder. The anchor cable penetrating execution part is installed at the front end of the second supporting arm and comprises a machine head installation arm, a machine head main machine frame, a machine head auxiliary machine frame, a second rotary speed reducer, a third rotary speed reducer, an anchor cable penetrating driving roller, an anchor cable penetrating follow-up pressing roller and an auxiliary machine frame driving cylinder. When the machine head auxiliary rack is located at the pressing position, an anchor cable penetrating space is formed between the anchor cable penetrating follow-up pressing roller and the two anchor cable penetrating driving rollers. The penetrating efficiency can be improved, the construction cost can be reduced, and the construction safety can be improved.

Description

Technical Field

[0001] This invention belongs to the field of coal mine roadway construction technology, and relates to auxiliary equipment for coal mine roadway construction, and in particular to a walkable coal mine roadway anchor cable installation assist machine. Background Technology

[0002] Currently, the installation of vertical anchor cables on the roof of coal mine roadways is generally done manually. Due to the considerable height of the roadways and the length and weight of the steel strands (for example, a 10m anchor cable can weigh approximately 60kg), multiple people are typically required for installation. Some workers climb onto an elevated platform to guide the anchor cable upwards through the anchor holes on the roadway roof, while others stand at the bottom of the roadway to assist in pulling the anchor cable portion on the ground, providing support to the workers on the elevated platform. This existing manual installation method suffers from drawbacks such as high manpower requirements, low efficiency, high costs, and poor safety.

[0003] Patent application number 202310946114.4, entitled "An Anchor Cable Installation Assist Machine and Method for Coal Mine Roadways," discloses an auxiliary device and method for installing anchor cables. Using this assist machine, only two workers are needed to install the anchor cables, significantly saving manpower and reducing construction costs compared to the existing method which requires 5-6 workers. This assist machine enables smooth, continuous, and rapid installation of anchor cables, greatly improving efficiency compared to the existing fully manual operation method. Furthermore, workers do not need to climb to heights during the installation process, significantly improving construction safety.

[0004] The aforementioned anchor cable installation assist machine still needs further improvement and refinement in terms of enhancing the convenience of anchor cable installation, increasing the efficiency of anchor cable installation, and saving manpower. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mobile coal mine roadway anchor cable installation assist machine that can improve installation efficiency, save manpower, reduce construction costs and improve construction safety.

[0006] The above-mentioned objective of this invention is achieved through the following technical solution: A mobile coal mine roadway anchor cable installation assistive machine includes a vehicle body, an anchor cable installation execution part, and a lifting connecting arm part. The vehicle body includes a chassis and a body; a platform is fixed on a steel frame at the upper end of the chassis, and the body is mounted on the upper end of the platform. The lifting connecting arm includes a first support arm, a first support arm drive cylinder, a second support arm, and a second support arm drive cylinder. The lower end of the first support arm is hinged to a first hinge position at the front of the machine body. The cylinder end of the first support arm drive cylinder is hinged to a second hinge position at the front of the machine body, and the cylinder rod end of the first support arm drive cylinder is hinged to the upper rear position of the first support arm. The second support arm is a two-section arm, consisting of a fixed arm and a rotating arm. The rear end of the fixed arm is hinged to the upper front position of the first support arm, and the front end of the fixed arm is connected to one end of the rotating arm through a first rotary reducer. The second support arm drive cylinder is connected to the lower end of the fixed arm and the front part of the first support arm near the lower end. The anchor cable installation execution part includes a head mounting arm, a head main frame, a head auxiliary frame, a second rotary reducer, a third rotary reducer, an anchor cable installation drive roller, an anchor cable installation follow-up pressure roller, and a secondary frame drive cylinder. The rear end of the head mounting arm is fixedly connected to the front end of the rotating arm, and the setting direction of the head mounting arm is consistent with the axis of the rotating arm. The front end of the head mounting arm is perpendicularly connected to one end of the head main frame through the second rotary reducer. An drive roller bracket is fixed at the other end of the head main frame. Two parallel drive rollers are installed in the drive roller bracket through roller shafts. The axial direction of the two drive rollers is parallel to the axial direction of the second rotary reducer. Transmission grooves with the same diameter as the anchor cable are provided on the two drive rollers. A third rotary reducer is fixed on the outside of the drive roller bracket. The third rotary reducer is driven by the two drive rollers through an intermediate transmission mechanism. The sub-frame of the machine head consists of a pressure roller mounting groove and a first and a second external connecting part located outside the pressure roller mounting groove. The anchor cable threading follower pressure roller is rotatably supported in the pressure roller mounting groove, and a transmission groove with the same diameter as the anchor cable is provided on the anchor cable threading follower pressure roller. The first external connecting part is hinged to the main frame of the machine head. The second external connecting part is hinged to the cylinder rod end of the sub-frame drive cylinder, and the cylinder barrel end of the sub-frame drive cylinder is hinged to the main frame of the machine head. When the sub-frame of the machine head is in the pressed position, an anchor cable passing space is formed between the anchor cable threading follower pressure roller and the two anchor cable threading active rollers, and the anchor cable threading follower pressure roller is positioned between the two anchor cable threading active rollers.

[0007] Moreover, the chassis is a tracked chassis.

[0008] Furthermore, the vehicle body also includes an anchor cable bracket; the anchor cable bracket is installed on the front side of the upper part of the chassis on the platform, and the anchor cable bracket consists of a frame part arranged in the front-rear direction and rotatable support rollers evenly distributed at the lower end of the frame in the front-rear direction, with the upper end of the support rollers used to support the anchor cable.

[0009] Furthermore, the head mounting arm is fixedly connected to the other end of the rotating arm via two upper and lower pins.

[0010] Furthermore, the intermediate transmission mechanism includes a drive shaft, a drive gear, and two driven gears; the drive shaft is rotatably supported on the drive roller bracket by bearings at both ends, and one end of the drive shaft is connected to the output end of the third rotary reducer through a coupling; the drive gear is fixedly installed at the other end of the drive shaft, and the two driven gears are respectively fixedly installed on the side of the drive roller away from the transmission groove, and both driven gears mesh with the drive gear.

[0011] Furthermore, guide grooves are provided on both sides of the pressure roller mounting groove, and U-shaped pressure roller brackets are slidably and adjustablely installed in the guide grooves on both sides. The anchor cable is inserted into the follower pressure roller and is rotatably supported on the two vertical sides of the U-shaped pressure roller bracket through the roller shaft and bearing. The horizontal side of the U-shaped pressure roller bracket is connected to the top of the pressure roller mounting groove by bolts.

[0012] Furthermore, a guide roller is rotatably supported inside the active roller bracket on the outside of the two anchor cable-inserting active rollers, and an anchor cable guide groove is provided on the guide roller.

[0013] The advantages and positive effects of this invention are as follows: 1. This invention automatically tightens and rotates the anchor cable threading mechanism, automatically rotating the anchor cable from horizontal to vertical after threading, saving manpower and improving the reliability and safety of the operation.

[0014] 2. The anchor cable threading execution part of the present invention is raised to a suitable height position by the lifting connecting arm, which facilitates the cable threading operation.

[0015] 3. The anchor cable installation part of this invention is installed at the front end of the vehicle body, which facilitates movement, avoids the need for manual handling of the assist machine, and helps to improve the efficiency of cable installation. Attached Figure Description

[0016] Figure 1 This is a reference diagram of the anchor cable installation assist machine of the present invention in the state where the anchor cable is horizontally supported on the anchor cable installation active roller and is not compressed; Figure 2 yes Figure 1 Enlarged view of a portion at point A; Figure 3 This is a reference diagram of the anchor cable installation assist machine of the present invention in the state where the anchor cable is horizontally supported on the anchor cable installation active roller and is pressed. Figure 4 yes Figure 3 A magnified view of section B; Figure 5 This is a reference diagram showing the anchor cable installation assist machine of the present invention rotating in a vertical position at the clamping end of the anchor cable; Figure 6 This is a reference diagram of the anchor cable installation assist machine of the present invention during the anchor cable installation process; Figure 7 This is a top view of the anchor cable installation assist machine of the present invention; Figure 8 This is a reference diagram of the anchor cable installation execution part of the present invention in the pressed-down state of the machine head sub-frame; Figure 9 This is a reference diagram showing the anchor cable installation execution part of the present invention in the raised state of the machine head sub-frame; In the diagram: 1. Anchor cable threading execution part; 1-1. Anchor cable threading follow-up pressure roller; 1-2. Anchor cable threading drive roller; 1-3. Anchor cable passing through space; 1-4. Head mounting arm; 1-5. Second rotary reducer; 1-6. Sub-frame drive cylinder; 1-7. Head main frame; 1-8. Head sub-frame; 1-9. Drive roller bracket; 1-10. Drive shaft; 1-11. Third rotary reducer; 1-12. Drive gear; 1-13. Driven gear; 1-14. U-shaped pressure roller bracket; 1-15. Bolt; 2. Second support arm; 2-1. Rotating arm; 2-2. First rotary reducer; 2-3. Fixed arm; 3. Second support arm drive cylinder; 4. First support arm; 5. First support arm drive cylinder; 6. Machine body; 7. Anchor cable bracket; 7-1, 8. Walking chassis; 9. Anchor cable. Detailed Implementation

[0017] The structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0018] Please refer to the following: A mobile coal mine roadway anchor cable installation assist machine. Figures 1-9 The invention features a vehicle body, an anchor cable threading execution part 1, and a lifting connecting arm, wherein the anchor cable threading execution part is the head of the anchor cable threading assist machine.

[0019] The vehicle body mainly consists of three parts: a traveling chassis 8, a body 6, and an anchor cable bracket 7. Given the unevenness of the roadway floor, a tracked traveling chassis is preferably used in this invention. A platform is fixed on a steel frame at the upper end of the traveling chassis. The body is installed at the upper rear of the platform for connection with the lifting connecting arm. The anchor cable bracket is installed at the upper front of the platform to provide horizontal support for the portion of the anchor cable to be installed. The anchor cable bracket consists of a frame section arranged in the front-rear direction and rotatable support rollers 7-1 evenly distributed at the lower end of the frame section in the front-rear direction. The upper end of the support rollers supports the anchor cable, facilitating its transport during installation.

[0020] In addition, the electrical control system and hydraulic control system of the mobile coal mine roadway anchor cable installation assist machine are both installed on the machine body.

[0021] The lifting connecting arm is used to connect the front of the machine body with the anchor cable installation execution part, and to raise the anchor cable installation execution part. The lifting connecting arm includes a first support arm 4, a first support arm drive cylinder 5, a second support arm 2, and a second support arm drive cylinder 3. The lower end of the first support arm is hinged to a first hinge position at the front of the machine body, the cylinder end of the first support arm drive cylinder is hinged to a second hinge position at the front of the machine body, and the cylinder rod end of the first support arm drive cylinder is hinged to the upper rear position of the first support arm. By extending and retracting the cylinder rod of the first support arm drive cylinder, the first support arm can rotate around the first hinge center, thereby raising and lowering the first support arm. The second support arm is a two-section arm, including a fixed arm 2-3 and a rotating arm 2-1. The rear end of the fixed arm is hinged to the upper front part of the first support arm. The front end of the fixed arm is connected to one end of the rotating arm through a first rotary reducer 2-2. The first rotary reducer is connected to a power source, which can be a motor or electric motor, to drive the rotating arm to rotate around the axis of the entire second support arm. The second support arm drive cylinder is connected to the lower end of the fixed arm and the front part of the first support arm near the lower end. By extending and retracting the cylinder rod of the second support arm drive cylinder, the second support arm can rotate around the hinged axis with the first support arm, thereby raising and lowering the second support arm.

[0022] The anchor cable installation execution part includes a head mounting arm 1-4, a head main frame 1-7, a head auxiliary frame 1-8, a second rotary reducer 1-5, a third rotary reducer, an anchor cable installation drive roller 1-2, an anchor cable installation follow-up pressure roller 1-1, and a auxiliary frame drive cylinder 1-6. The rear end of the head mounting arm is fixedly connected to the front end of the rotating arm. The orientation of the head mounting arm is consistent with the axial direction of the rotating arm. In this invention, the head mounting arm is fixedly connected to the other end of the rotating arm via two upper and lower pins. The front end of the head mounting arm is perpendicularly connected to one end of the head main frame via the second rotary reducer. The second rotary reducer is connected to a power source, which can be a motor or electric motor, and can drive the head main frame to rotate 360°. At the other end of the main frame of the machine head, a drive roller bracket 1-9 is fixed. Two parallel drive rollers 1-2 are mounted inside the drive roller bracket via roller shafts. The axial direction of the two drive rollers is parallel to the axial direction of the second rotary reducer. Transmission grooves with the same diameter as the anchor cable are provided on the two drive rollers. A third rotary reducer 1-11 is fixed to the outside of the drive roller bracket. The third rotary reducer is connected to a power source, which can be a motor or electric motor. The third rotary reducer is driven by the two drive rollers through an intermediate transmission mechanism, enabling the two drive rollers to rotate in the same direction. In this invention, the intermediate transmission mechanism includes a drive shaft 1-10, a drive gear 1-12, and two driven gears 1-13. The drive shaft is rotatably supported on the drive roller bracket by bearings at both ends. One end of the drive shaft is connected to the output end of the third rotary reducer via a coupling. The drive gear is fixedly installed at the other end of the drive shaft. The two driven gears are respectively fixedly installed on the side of the drive roller away from the transmission groove, and both driven gears mesh with the drive gear.

[0023] The sub-frame of the machine head consists of a pressure roller mounting groove and a first and a second external connecting part located outside the pressure roller mounting groove. The anchor cable threading follower pressure roller is rotatably supported within the pressure roller mounting groove, and a transmission groove with the same diameter as the anchor cable is provided on the anchor cable threading follower pressure roller. The first external connecting part is hinged to the main frame of the machine head, and the center of this hinge is the rotation center of the sub-frame of the machine head. The second external connecting part is hinged to the cylinder rod end of the sub-frame drive cylinder, and the cylinder barrel end of the sub-frame drive cylinder is hinged to the main frame of the machine head. When the sub-frame of the machine head is in the pressed-down position, an anchor cable passing space 1-3 is formed between the anchor cable threading follower pressure roller and the two anchor cable threading active rollers, and the anchor cable threading follower pressure roller is positioned between the two anchor cable threading active rollers.

[0024] In this invention, to facilitate the adjustment of the clamping force for anchor cable installation, the anchor cable installation follow-up pressure roller is installed in the pressure roller mounting groove in an adjustable manner. A specific structural form can be adopted as follows: guide grooves are provided on both sides of the pressure roller mounting groove, and U-shaped pressure roller brackets 1-14 are slidably and adjustablely installed in the guide grooves on both sides. The anchor cable installation follow-up pressure roller is rotatably supported on the two vertical sides of the U-shaped pressure roller bracket via roller shafts and bearings. The horizontal side of the U-shaped pressure roller bracket is connected to the top of the pressure roller mounting groove via bolts 1-15. By adjusting the up and down positions of the bolts, the installation position of the anchor cable installation follow-up pressure roller can be adjusted, thereby adjusting the space through which the anchor cable passes, ensuring that optimal transmission friction is applied to the anchor cable.

[0025] In the above structure, a guide roller is rotatably supported outside the two anchor cable threading drive rollers within the drive roller bracket, and an anchor cable guide groove is provided on the guide roller. The arrangement of the two guide rollers effectively ensures that the anchor cable does not sway during the upward conveying and threading process, which is conducive to achieving smooth threading.

[0026] The working principle of this mobile coal mine roadway anchor cable installation assist machine is as follows: This mobile coal mine roadway anchor cable installation assist machine is used for anchor cable installation operations in coal mine roadways. First, the machine is moved to a position below the anchor to be installed by the movement of the chassis. Then, depending on whether the anchor to be installed is located to the left or right of the lifting connecting arm, the first rotary reducer is activated, causing the rotating arm to rotate and driving the entire anchor cable installation execution part to the corresponding position. Next, the first support arm drive cylinder is activated, and through the extension of the cylinder rod, the anchor cable installation execution part moves to the lower working position. With the anchor cable bracket installed on the chassis, the height of the two anchor cable installation drive rollers is made approximately the same as the height of the support rollers on the anchor cable bracket. Finally, the machine head auxiliary frame is in the raised position. In the current state, one end of the anchor cable to be installed is supported in the transmission groove on the two anchor cable installation drive rollers from back to front; then the auxiliary frame drive cylinder is started, causing the auxiliary frame of the machine head to rotate to the pressing position, and the anchor cable is pressed up by the anchor cable installation follow-up pressure roller; after the anchor cable is pressed up, the second rotary reducer is started, causing the pressed end of the anchor cable to rotate from the horizontal state to the vertical state; then, by adjusting the pitch angle of the first support arm and the second support arm, the upper end of the anchor cable is aligned with the pre-made hole to be installed at the top of the roadway; finally, the third rotary reducer is started, driving the two anchor cable installation drive rollers to rotate counterclockwise, and in conjunction with the pressing action of the anchor cable installation follow-up pressure roller, the anchor cable is continuously conveyed upward and smoothly installed into the pre-made hole at the top of the roadway.

[0027] The above-described process is not the only one. After the anchor cable is clamped in a horizontal state, the first support arm can be lifted first to raise the clamping end of the anchor cable to a certain angle. Then, the second rotary reducer can be started to rotate the clamped end of the anchor cable from a horizontal state to a vertical state before proceeding with the subsequent anchor cable installation.

[0028] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A mobile coal mine roadway anchor cable installation assist machine, characterized in that: This includes the vehicle body, the anchor cable installation mechanism, and the lifting connecting arm. The vehicle body includes a chassis and a body; a platform is fixed on a steel frame at the upper end of the chassis, and the body is mounted on the upper end of the platform. The lifting connecting arm includes a first support arm, a first support arm drive cylinder, a second support arm, and a second support arm drive cylinder. The lower end of the first support arm is hinged to a first hinge position at the front of the machine body. The cylinder end of the first support arm drive cylinder is hinged to a second hinge position at the front of the machine body, and the cylinder rod end of the first support arm drive cylinder is hinged to the upper rear position of the first support arm. The second support arm is a two-section arm, consisting of a fixed arm and a rotating arm. The rear end of the fixed arm is hinged to the upper front position of the first support arm, and the front end of the fixed arm is connected to one end of the rotating arm through a first rotary reducer. The second support arm drive cylinder is connected to the lower end of the fixed arm and the front part of the first support arm near the lower end. The anchor cable installation execution part includes a head mounting arm, a head main frame, a head auxiliary frame, a second rotary reducer, a third rotary reducer, an anchor cable installation drive roller, an anchor cable installation follow-up pressure roller, and a secondary frame drive cylinder. The rear end of the head mounting arm is fixedly connected to the front end of the rotating arm, and the setting direction of the head mounting arm is consistent with the axis of the rotating arm. The front end of the head mounting arm is perpendicularly connected to one end of the head main frame through the second rotary reducer. An drive roller bracket is fixed at the other end of the head main frame. Two parallel drive rollers are installed in the drive roller bracket through roller shafts. The axial direction of the two drive rollers is parallel to the axial direction of the second rotary reducer. Transmission grooves with the same diameter as the anchor cable are provided on the two drive rollers. A third rotary reducer is fixed on the outside of the drive roller bracket. The third rotary reducer is driven by the two drive rollers through an intermediate transmission mechanism. The sub-frame of the machine head consists of a pressure roller mounting groove and a first and a second external connecting part located outside the pressure roller mounting groove. The anchor cable threading follower pressure roller is rotatably supported in the pressure roller mounting groove, and a transmission groove with the same diameter as the anchor cable is provided on the anchor cable threading follower pressure roller. The first external connecting part is hinged to the main frame of the machine head. The second external connecting part is hinged to the cylinder rod end of the sub-frame drive cylinder, and the cylinder barrel end of the sub-frame drive cylinder is hinged to the main frame of the machine head. When the sub-frame of the machine head is in the pressed position, an anchor cable passing space is formed between the anchor cable threading follower pressure roller and the two anchor cable threading active rollers, and the anchor cable threading follower pressure roller is positioned between the two anchor cable threading active rollers.

2. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: The chassis used is a tracked chassis.

3. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: The vehicle body also includes an anchor cable bracket; the anchor cable bracket is installed on the front side of the upper part of the machine body on the platform, and the anchor cable bracket consists of a frame part arranged in the front-rear direction and rotatable support rollers evenly distributed at the lower end of the frame in the front-rear direction, with the upper end of the support rollers used to support the anchor cable.

4. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: The head mounting arm is fixedly connected to the other end of the rotating arm via two upper and lower pins.

5. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: The intermediate transmission mechanism includes a drive shaft, a drive gear, and two driven gears. The drive shaft is rotatably supported on the drive roller bracket by bearings at both ends. One end of the drive shaft is connected to the output end of the third rotary reducer via a coupling. The drive gear is fixedly installed at the other end of the drive shaft. The two driven gears are respectively fixedly installed on the side of the drive roller away from the transmission groove. Both driven gears mesh with the drive gear.

6. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: Guide grooves are provided on both sides of the pressure roller mounting groove. U-shaped pressure roller brackets are slidably and adjustablely installed in the guide grooves on both sides. The anchor cable is threaded onto the follower pressure roller and is rotatably supported on the two vertical sides of the U-shaped pressure roller bracket through the roller shaft and bearing. The horizontal side of the U-shaped pressure roller bracket is connected to the top of the pressure roller mounting groove by bolts.

7. The mobile coal mine roadway anchor cable installation assist machine according to claim 1, characterized in that: Inside the active roller bracket, on the outside of the two anchor cable-inserting active rollers, there is a rotatable support for a guide roller, and an anchor cable guide groove is provided on the guide roller.

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