An anchor bolt mechanism installed on the tail of a self-propelled aircraft

Abstract

This utility model relates to the field of coal mine machinery and equipment technology, and discloses an anchor bolt mechanism installed on the tail of a self-propelled excavator. It aims to solve the problem of fast excavation but slow support in existing excavation systems. This utility model cleverly utilizes the empty space above the self-propelled excavator tail, achieving anchor bolt support without increasing the width of the roadway equipment. The gantry-type working platform design ensures that the material transport function of the self-propelled excavator tail itself is not affected, enabling parallel operations of excavation, transport, and support. As the self-propelled excavator tail moves forward, it simultaneously drives the anchor bolt mechanism forward. Through the combined action of the longitudinal movement mechanism, slewing reducer, and anchor bolt mechanism on the platform, it is possible to achieve single positioning and complete the installation of multiple rows of anchor bolts across the entire cross-section.

Description

Technical Field

[0001] This utility model relates to the field of coal mine machinery and equipment technology, and in particular to an anchor bolt mechanism installed on the tail of a self-propelled machine. Background Technology

[0002] During the excavation of fully mechanized tunnels or continuous mining tunnels in coal mines, as the tunneling machine or continuous mining machine advances, the surrounding rock of the tunnel roof and sidewalls is prone to deformation or collapse due to stress release. Therefore, timely anchor bolt or cable support is necessary to ensure operational safety. Simultaneously, to coordinate with the advancement of the tunnel face, the belt conveyor responsible for transporting coal needs to extend continuously forward along the self-propelled tail section.

[0003] The existing technical solutions have the following shortcomings:

[0004] Currently, the system typically consists of a tunneling machine, a belt conveyor, and a self-propelled tail section. This configuration is sufficient for normal tunnel excavation, but it suffers from the problem of fast excavation but slow support. The roof and tunnel sides behind the tunneling machine require timely reinforcement with anchor bolts; otherwise, the lack of timely reinforcement could lead to rockfalls and collapses. Existing equipment cannot fulfill this function. Integrating anchor bolt support into the tunneling machine would result in an overly complex mechanism that would hinder normal cutting operations and obstruct the driver's view. Using a separate anchor bolt drilling rig would require repeated equipment relocation and would also occupy tunnel width.

[0005] Therefore, we urgently need to design an anchor bolt mechanism installed on the tail of the self-propelled machine to solve the problems mentioned above. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the problem that existing excavation systems have fast excavation speed but slow support speed. This utility model proposes an anchor bolt mechanism that is installed on the tail of a self-propelled excavator.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an anchor bolt mechanism installed on the tail of a self-propelled machine, including a self-propelled tail body, a working platform, a longitudinal movement mechanism, and an anchor bolt mechanism. The working platform is provided on the longitudinal beams on both sides of the frame of the self-propelled tail body, forming an internal channel for material to pass through. A control system is provided on one side above the working platform, and a longitudinal movement mechanism is provided on the other side. A rotary reducer is connected above the longitudinal movement mechanism, and an anchor bolt mechanism is connected above the rotary reducer. The anchor bolt mechanism uses the longitudinal movement mechanism to reciprocate along the tunnel excavation direction above the control system.

[0008] Preferably, the self-propelled tail section body mainly consists of a tail section assembly, several intermediate section assemblies, several support leg assemblies, a track assembly, a pushing cylinder, a left and right adjustment device, a pump station assembly, etc. The tail section mainly has a redirecting roller and can tension the belt. The intermediate section assembly mainly consists of a frame, lower roller, upper roller, side roller, etc. The support leg assemblies are mounted on both sides of the intermediate section assembly. Controlling the extension and retraction of the support leg cylinder can realize the height adjustment of the self-propelled tail section. Controlling the extension and retraction of the pushing leg cylinder can realize the self-propelled tail section moving forward along the roadway.

[0009] Preferably, the longitudinal movement mechanism adopts a double-stroke propulsion structure, including a guide rail, a sliding seat, a chain propulsion device, and a propulsion cylinder. The guide rail extends along the roadway to the working platform. The bottom of the sliding seat is provided with longitudinal guide wheels and transverse guide wheels that cooperate with the guide rail. The cylinder body of the propulsion cylinder is fixed, and the piston rod end is provided with a movable pulley assembly. The chain passes around the movable pulley and connects to the sliding seat, so that the moving distance of the sliding seat is twice the extension and retraction stroke of the propulsion cylinder.

[0010] Preferably, the anchor bolt mechanism includes a rotary seat, a telescopic arm, a lifting cylinder, a pitch seat, a pitch cylinder, a universal joint, and a hydraulic anchor bolt drill. The rear end of the outer cylinder of the telescopic arm is hinged to the rotary seat. The lifting cylinder is hinged between the rotary seat and the telescopic arm to drive the telescopic arm to rise and fall. An anchor bolt chamber is fixed above the telescopic arm. The front end of the inner cylinder of the telescopic arm is hinged to a pitch seat. The pitch cylinder is hinged between the telescopic arm and the pitch seat to drive the pitch seat to pitch. An operating platform is provided above the pitch seat. A standing platform is connected to the side of the operating platform. A universal joint is connected to the front of the pitch seat, and a hydraulic anchor bolt drill is connected to the front end of the universal joint.

[0011] Preferably, the universal rotary joint is mainly composed of two rotary swing cylinders at 90° to each other. Each swing cylinder can rotate 180°, thereby driving the hydraulic anchor bolt machine to perform the functions of top anchoring and side anchoring.

[0012] Compared with the prior art, the beneficial effects of this utility model include:

[0013] 1. High space utilization: It cleverly utilizes the spare space above the tail section of the self-propelled machine, achieving the function of anchor bolt support without increasing the width occupied by the roadway equipment.

[0014] 2. No interference between each other: The gantry-type working platform design ensures that the material transport function of the self-moving tail section is not affected, thus realizing the parallel operation of tunneling, transportation and support.

[0015] 3. Wide operating range: By moving forward with its tail section, the self-propelled machine can simultaneously drive the anchor bolt mechanism forward. Through the combined action of the longitudinal movement mechanism, slewing reducer and anchor bolt mechanism on the platform, it can achieve the need for multi-row spacing and full-section anchor bolt construction with a single positioning.

[0016] 4. Improve safety and efficiency: Mechanized operations replace manual hand-held drilling rigs, reducing the labor intensity of workers; operators can operate from a specially designed folding platform, away from the danger zone, thus solving the safety hazards caused by delayed support. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model from the front view;

[0019] Figure 2 This is a three-dimensional structural diagram of the longitudinal movement mechanism of this utility model;

[0020] Figure 3 This is a side view of the longitudinal movement mechanism of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the anchor bolt mechanism of this utility model.

[0022] The following are the labeling elements in the diagram: 1. Self-propelled tail section; 2. Working platform; 3. Control system; 4. Longitudinal movement mechanism; 5. Rotary reducer; 6. Anchor bolt mechanism; 7. Guide rail; 8. Chain propulsion device; 9. Sliding seat; 10. Longitudinal guide wheel; 11. Lateral guide wheel; 12. Hydraulic anchor bolt drill; 13. Universal joint; 14. Pitch seat; 15. Pitch cylinder; 16. Telescopic boom; 17. Lifting cylinder; 18. Rotary seat; 19. Anchor bolt chamber; 20. Personnel platform; 21. Control panel. Detailed Implementation

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] To address the technical problem of existing excavation systems exhibiting fast excavation but slow support, the following solution is disclosed, as detailed below. Figures 1-4As shown:

[0025] An anchor bolt mechanism installed on the tail of a self-propelled machine includes a self-propelled machine tail body 1, a working platform 2, a longitudinal movement mechanism 4, and an anchor bolt mechanism 6. The working platform 2 is mounted on the longitudinal beams on both sides of the frame of the self-propelled machine tail body 1, forming an internal channel for material to pass through. A control system 3 is provided on one side above the working platform 2, and a longitudinal movement mechanism 4 is provided on the other side. A rotary reducer 5 is connected above the longitudinal movement mechanism 4, and an anchor bolt mechanism 6 is connected above the rotary reducer 5. The anchor bolt mechanism 6 reciprocates along the tunnel excavation direction above the control system 3 using the longitudinal movement mechanism 4.

[0026] The self-propelled tail section 1 mainly consists of a tail section assembly, several intermediate section assemblies, several support leg assemblies, a track assembly, a pushing cylinder, a left and right adjustment device, a pump station assembly, etc. The tail section is mainly equipped with a redirecting roller and can tension the belt. The intermediate section assembly mainly consists of a frame, lower idler roller, upper idler roller, side guard roller, etc. The support leg assemblies are mounted on both sides of the intermediate section assembly. The height of the self-propelled tail section can be adjusted by controlling the extension and retraction of the support leg cylinders. The self-propelled tail section can be moved forward along the roadway by controlling the extension and retraction of the pushing leg cylinders.

[0027] Specifically, such as Figure 1 As shown, a design concept of "space displacement" is proposed, which moves the anchor bolt mechanism 6 from the anchor bolt drilling rig or tunneling machine to the top space of the self-moving machine tail, solving the problem of support equipment occupying the roadway width or affecting the operation of the tunneling machine;

[0028] The longitudinal movement mechanism 4 adopts a double-stroke propulsion structure, including a guide rail 7, a sliding seat 9, a chain propulsion device 8, and a propulsion cylinder. The guide rail 7 runs along the roadway onto the working platform 2. The bottom of the sliding seat 9 is provided with a longitudinal guide wheel 10 and a transverse guide wheel 11 that cooperate with the guide rail 7. The piston rod of the propulsion cylinder is fixed, and a movable pulley assembly is provided on the cylinder body. The chain passes around the movable pulley and connects to the sliding seat 9, so that the moving distance of the sliding seat 9 is twice the extension and retraction stroke of the propulsion cylinder.

[0029] Specifically, such as Figure 2 , Figure 3 As shown, the design of the drive transmission chain, through the combination of hydraulic cylinder + chain + movable pulley, solves the contradiction between the limited stroke of hydraulic cylinder and the need for long-distance displacement. At the same time, the use of longitudinal and transverse bidirectional guide wheels reduces sliding resistance and withstands longitudinal and lateral forces.

[0030] The anchor bolt mechanism 6 includes a rotary seat 18, a telescopic arm 16, a lifting cylinder 17, a pitch seat 14, a pitch cylinder 15, a universal joint 13, and a hydraulic anchor bolt drill 12. The rear end of the outer cylinder of the telescopic arm 16 is hinged to the rotary seat 18. The lifting cylinder 17 is connected between the rotary seat 18 and the telescopic arm 16 to drive the telescopic arm 16 to lift. An anchor bolt chamber 19 is connected above the telescopic arm 16. The pitch seat 14 is hinged to the front end of the inner cylinder of the telescopic arm 16. The pitch cylinder 15 is connected between the telescopic arm 16 and the pitch seat 14 to drive the pitch seat 14 to pitch. An operating platform 21 is provided above the pitch seat 14. A standing platform 20 is connected to the side of the operating platform 21. A universal joint 13 is connected above the pitch seat 14, and the hydraulic anchor bolt drill 12 is connected to the front end of the universal joint 13.

[0031] The universal rotary joint 13 is mainly composed of two rotary swing cylinders that are 90° apart. Each swing cylinder can rotate 180°, thereby driving the hydraulic anchor bolt machine to realize the functions of top anchoring and side anchoring.

[0032] Specifically, such as Figure 4 As shown, the rotary reducer 5, with its large output torque and strong anti-overturning capability, supports the weight of the entire robotic arm and achieves precise angle positioning. It is a key connection node for realizing "one machine for multiple uses" for drilling the top plate and side walls. At the same time, through two vertically arranged swing cylinders, the drilling rig can adjust its posture at will, and can drill the top anchor vertically upward, drill the side anchor horizontally, and even drill the corner anchor at an angle, covering the full-section support requirements.

[0033] In this embodiment, during use, the self-moving tail body 1 moves forward step by step through its own pushing cylinder and support leg assembly, driving the upper working platform 2 and anchor bolt device to move as a whole to the approximate working section. At this time, the pushing cylinder of the longitudinal movement mechanism 4 is activated, and the sliding seat 9 is driven to move back and forth on the working platform 2 through the chain double stroke structure, so that the anchor bolt machine is accurately positioned at the row spacing position where additional anchor bolts need to be installed. The rotary reducer 5 is driven to drive the entire telescopic drill arm assembly to rotate horizontally. The direction of alignment with the left side, right side or top plate is selected. The extension and retraction of the lifting cylinder 17 and the pitch cylinder 15 are controlled in conjunction to adjust the pitch angle of the telescopic drill arm and the pitch seat relative to the ground. The telescopic cylinder inside the telescopic drill arm is controlled to drive the telescopic inner cylinder to extend, sending the front end of the drill to the vicinity of the rock wall. It can also compensate for the stroke difference generated during the lifting and swinging of the drill arm. The two swing cylinders of the front universal rotary joint 13 can be adjusted to finely adjust the angle of the hydraulic anchor bolt drill 12, so that its drill rod axis is strictly constructed according to the required anchor bolt construction angle.

[0034] Drilling begins: After positioning, the power head of the hydraulic anchor drilling rig 12 is controlled to rotate and advance, completing drilling, anchor bolt installation, and fastening operations. After completing one anchor bolt installation, the anchor drilling rig is moved to the next anchor bolt installation position for the next installation; this process continues until all anchor bolt installations are completed.

[0035] The manned operating platform is designed for proximity, located not far from the hydraulic anchor bolting machine. This allows operators to easily stand on it and operate the valve assembly on the control panel above the elevation seat, and facilitates auxiliary operations such as changing drill rods, loading explosive cartridges, and tightening anchor bolts. During drilling operations, the manned platform is extended; when not drilling, it folds and retracts to one side of the elevation seat, without occupying any space in the tunnel.

[0036] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An anchor bolt mechanism installed on the tail of a self-propelled aircraft, comprising a self-propelled tail body (1), a working platform (2), a longitudinal movement mechanism (4), and an anchor bolt mechanism (6), characterized in that: The self-moving tail body (1) has a working platform (2) spanning the longitudinal beams on both sides of the frame, forming an internal channel for material to pass through. A control system (3) is provided on one side above the working platform (2), and a longitudinal movement mechanism (4) is provided on the other side. A rotary reducer (5) is connected above the longitudinal movement mechanism (4), and an anchor bolt mechanism (6) is connected above the rotary reducer (5).

2. A jumbo-mounted roofbolter mechanism according to claim 1, characterised in that: The self-moving tail section body (1) is mainly composed of a tail section assembly, several intermediate section assemblies, several support leg assemblies, a track assembly, a pushing cylinder, a left and right adjustment device, a pump station assembly, etc. The tail section is mainly equipped with a redirecting roller and can tension the belt. The intermediate section assembly is mainly composed of a frame, a lower idler roller, an upper idler roller, a side stop roller, etc. The support leg assembly is mounted on both sides of the intermediate section assembly. The height adjustment of the self-moving tail section can be realized by controlling the extension and retraction of the support leg cylinder. The self-moving tail section can be moved forward along the roadway by controlling the extension and retraction of the pushing leg cylinder.

3. A jumbo-mounted roofbolter mechanism according to claim 1 wherein: The longitudinal movement mechanism (4) adopts a double-stroke propulsion structure, including a guide rail (7), a sliding seat (9), a chain propulsion device (8), and a propulsion cylinder. The guide rail (7) runs along the roadway onto the working platform (2). The bottom of the sliding seat (9) is provided with a longitudinal guide wheel (10) and a transverse guide wheel (11) that cooperate with the guide rail (7). The piston rod of the propulsion cylinder is fixed, and a movable pulley assembly is provided on the cylinder body. The chain passes around the movable pulley and connects to the sliding seat (9), so that the moving distance of the sliding seat (9) is twice the extension and retraction stroke of the propulsion cylinder.

4. A jumbo-mounted roofbolter mechanism according to claim 1, wherein: The anchor bolt mechanism (6) includes a rotary seat (18), a telescopic arm (16), a lifting cylinder (17), a pitch seat (14), a pitch cylinder (15), a universal joint (13), and a hydraulic anchor bolt drill (12). The rear end of the outer cylinder of the telescopic arm (16) is hinged to the rotary seat (18). The lifting cylinder (17) is hinged between the rotary seat (18) and the telescopic arm (16) to drive the telescopic arm (16) to rise and fall. An anchor bolt chamber (19) is fixed above the telescopic arm (16). The telescopic boom (16) has a pitch seat (14) hinged to the front end of its inner cylinder. The pitch cylinder (15) is hinged between the telescopic boom (16) and the pitch seat (14) to drive the pitch seat (14) to pitch. An operating platform (21) is provided above the pitch seat (14). A standing platform (20) is connected to the side of the operating platform (21). A universal joint (13) is connected to the front of the pitch seat (14), and a hydraulic anchor drill (12) is connected to the front end of the universal joint (13).

5. A jumbo-mounted roofbolter mechanism according to claim 4 wherein: The universal rotary joint (13) is mainly composed of two rotary swing cylinders that are 90° apart. Each swing cylinder can rotate 180°, thereby driving the hydraulic anchor bolt machine to realize the functions of top anchoring and side anchoring.

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