Anchoring and protecting device with rotating and lifting functions

Abstract

The application discloses an anchor protection device with rotating and lifting functions, and relates to the technical field of coal mining, which comprises a platform body, symmetrical horizontal beams arranged on the two sides of the platform body, the horizontal beams being capable of moving horizontally close to or away from the platform body, a support part arranged on the horizontal beams, an anchor protection drilling machine installed on the support part, capable of lifting and swinging by a set angle on the support part, and a lifting device arranged at the bottom of the platform body and capable of driving the platform body to rotate and lift. The anchor protection device with rotating and lifting functions can greatly improve the working efficiency.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and in particular to an anchoring device with rotation and lifting functions. Background Technology

[0002] Currently, the anchoring technology used in underground tunneling faces can be roughly divided into three types: 1) tunneling machine + single anchor drilling rig, 2) tunneling machine + two-arm anchor drilling rig, and 3) double-arm tunneling and anchoring machine. The first type involves the tunneling machine completing its excavation, lowering the cutting arm, and then manually operating the single anchor drilling rig for support. This method is labor-intensive and has a high risk factor. The second type involves the tunneling machine and the two-arm anchor drilling rig working alternately. The two-arm anchor drilling rig enters the face from the side of the tunneling machine to provide support, with both arms working simultaneously, achieving mechanization of anchoring support. However, the efficiency of two-arm operation is low; sometimes a single cycle requires 2-3 rows of anchor bolts, resulting in a large workload and low efficiency. Furthermore, untimely support can lead to sidewall collapse and roof fall, causing significant problems for roadway support and affecting support quality. The third type involves the tunneling machine completing its excavation, with two drilling rigs on the machine itself providing anchoring support. While this reduces the time spent on different machines, it is still inefficient. If sidewall anchoring is considered, the support workload is even greater, and the efficiency is even lower. Summary of the Invention

[0003] The purpose of this invention is to provide an anchoring device with rotation and lifting functions to solve the problems existing in the prior art. Multiple mobile anchoring drills are mounted on a narrow body structure and arranged in double rows, which can all work simultaneously, greatly improving the work efficiency.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides an anchoring device with rotation and lifting functions, comprising a platform body with symmetrical crossbeams on both sides, the crossbeams being able to move horizontally towards or away from the platform body; a support portion disposed on the crossbeams; an anchoring drill mounted on the support portion, capable of lifting and lowering, and swinging at a set angle on the support portion; and a lifting device disposed at the bottom of the platform body, capable of driving the platform body to rotate and lift. This invention is based on a narrow-boom anchor drilling rig, which works alternately with a roadheader to enter the face for support. The entire machine's anchoring section can extend, simultaneously supporting two rows of anchor bolts. A single row can support three anchor bolts simultaneously, and the two outer drilling arms of the same row can extend to simultaneously support two anchor bolts on the outer side of the roadway. The outer drilling arms of the front and rear rows can support side anchor bolts, allowing for simultaneous support of four side anchor bolts. Although the entire machine has a narrow body design, it carries multiple anchoring drills arranged in double rows, all of which can operate simultaneously, greatly improving operational efficiency.

[0006] Optionally, the support includes an intermediate drilling rig mounting base fixedly mounted on the crossbeam. One end of the intermediate drilling rig mounting base is provided with a leftward shifting module, and the other end of the intermediate drilling rig mounting base is provided with a rightward shifting module. The anchoring drilling rig is movably mounted on the intermediate drilling rig mounting base, the leftward shifting module, and the rightward shifting module. The leftward shifting module and the rightward shifting module can move left and right on the crossbeam.

[0007] Optionally, the crossbeam includes a front moving crossbeam and a rear moving crossbeam symmetrically arranged on both sides of the platform body. The front moving crossbeam and the rear moving crossbeam are respectively connected to the side wall of the platform body through telescopic sleeves. The telescopic sleeves are equipped with hydraulic cylinders. Wear-resistant strips are installed on the telescopic sleeves. The gap between the sliding pairs is adjusted by the wear-resistant strips to make the sliding smoother. The wear-resistant strips can be replaced after they wear out. Lubrication holes are designed on the outside to facilitate grease injection. The front moving crossbeam and the rear moving crossbeam are respectively connected to the pull-out base plate on the platform body. When the front moving crossbeam and the rear moving crossbeam slide on the platform body, the front moving crossbeam and the rear moving crossbeam pull out the pull-out base plate, making the platform body wider. This avoids the formation of a slip area after the platform width is extended, which could cause the operator to slip and improve safety.

[0008] Optionally, a swing bracket is connected to the support part via a rotating mechanism, and one side of the anchoring drill is connected to the swing bracket via a connecting shaft. The rotation direction of the connecting shaft is perpendicular to the rotation direction of the rotating mechanism. The rotating mechanism is driven by a horizontal rotary reducer. A horizontally arranged front and rear tilting cylinder is installed inside the support part, and the end of the front and rear tilting cylinder is connected to the inside of the anchoring drill.

[0009] Optionally, the platform body is provided with a canopy, and a canopy outer sleeve is fixedly connected to the bottom of the canopy. The canopy outer sleeve is fitted onto the canopy inner sleeve. The canopy inner sleeve is provided with a driving device, which can drive the canopy outer sleeve to move up and down.

[0010] Optionally, the platform body has hinged flaps at both ends and on the outside of the crossbeam. These flaps unfold during operation and are used by personnel to step on them. When the outer drilling rig extends outward, it facilitates personnel operation.

[0011] Optionally, the lifting device includes an upper base connected to the bottom of the platform body. The bottom of the upper base is connected to a lower base via a first scissor lift and a second scissor lift with an X-shaped hinge. The first scissor lift is hinged to one end of the lower base, and the second scissor lift is slidably mounted on a base slide rail of the lower base via a slider. A scissor lift cylinder is mounted on the slider, and the top of the scissor lift cylinder is hinged to the bottom of the upper base. A rotary reducer or a slewing mechanism is mounted on the upper base, and the top of the rotary reducer or slewing mechanism is connected to the platform body. Both the rotary reducer and the slewing mechanism can drive the platform body to rotate horizontally.

[0012] Optionally, the left and right side shifting modules are connected to the crossbeam via horizontally arranged telescopic sleeves. The telescopic sleeves are equipped with hydraulic cylinders. The sliding of the front moving crossbeam, the rear moving crossbeam, and the left and right side shifting modules is driven by hydraulic control valve groups controlling their respective hydraulic cylinders. The telescopic hydraulic cylinders are arranged inside the sleeves, making reasonable use of space.

[0013] Optionally, the anchoring drill located on the left and right shifting modules can rotate 150° away from the middle drill fixed seat and 30° towards the middle drill fixed seat.

[0014] The present invention achieves the following technical effects compared to the prior art:

[0015] This invention features symmetrically arranged anchoring drills along the width of the platform, with three drills per row, totaling six drills. These six drills can work simultaneously, significantly improving support efficiency. The outermost drills can slide outwards to support the top anchor bolts on the outermost side of the tunnel. Simultaneously, the outermost drills can rotate 150° outwards and 30° inwards to also drill side anchor bolts. A scissor lift device, a common type of vertical lifting platform, can support two side anchor bolts within the same cross-section during vertical lifting without requiring overall machine adjustments. The anchoring drills are symmetrically arranged in two rows, allowing operators to control both rows from the center, reducing manpower while increasing efficiency. The two rows of drills are positioned on front and rear movable crossbeams, both capable of telescoping and adjusting the row spacing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the anchor protection device with rotation and lifting functions of the present invention;

[0018] Figure 2 This is a schematic diagram of the anchor protection device with rotation and lifting functions of the present invention after the lifting device has been removed;

[0019] Figure 3 This is a partially enlarged schematic diagram of the tilting cylinder of the present invention;

[0020] Explanation of reference numerals in the attached drawings: 1-Platform body, 2-Front moving crossbeam, 3-Left side moving module, 4-Rear moving crossbeam, 5-Right side moving module, 6-Lower base, 7-Upper base, 8-First scissor lift, 9-Scissor lift cylinder, 10-Rotating mechanism, 11-Front and rear tilting cylinders, 12-Flip plate, 13-Intermediate drilling rig mounting base, 14-Second scissor lift, 15-Horizontal rotary reducer, 16-Anchored drilling rig, 17-Roof. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide an anchoring device with rotation and lifting functions to solve the problems existing in the prior art. Multiple mobile anchoring drills are mounted on a narrow body structure and arranged in double rows, which can all work simultaneously, greatly improving the work efficiency.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Narrow-type anchor bolt drilling rigs have a small body width, typically less than 1400mm, allowing only two rigs to be arranged side-by-side, resulting in low operating efficiency. Considering the limited width but minimal impact on length, this invention designs multiple drilling rigs arranged along the length of two rows. In the traveling state, the anchoring device rotates parallel to the rig body, maintaining a constant rig width. In the working state, the worktable rotates 90°, with multiple drill arms arranged horizontally in front and behind rows. The two outer drilling rigs can extend outwards to support the roadway roof anchor bolts and also to drill sidewall anchor bolts.

[0025] For details, please refer to the appendix. Figure 1 Appendix Figure 2 and attached Figure 3As shown, the present invention provides an anchoring device with rotation and lifting functions, including a platform body 1. Crossbeams are symmetrically slidably connected to both sides of the platform body 1, and the crossbeams can slide horizontally towards or away from the platform body 1. Two rows of multiple support parts are provided on the crossbeams. This embodiment uses six as the optimal arrangement. An anchoring drill 16 is movably installed on each support part. The anchoring drill 16 can be raised and lowered, and can swing back and forth or left and right at a set angle on the support part. To adapt to anchoring operations at different heights, the present invention provides a lifting device at the bottom of the platform body 1, which can drive the platform body 1 to rotate and rise. The rotation of the platform body 1 is achieved by a rotary reducer located at the top of the lifting device, which drives the platform body 1 to rotate horizontally on the lifting device. In another embodiment, a rotary support located at the top of the lifting device can also be used, driven by a hydraulic cylinder or by a gear and rack mechanism driven by a hydraulic motor. This invention is based on a narrow-body multi-arm anchor bolt drilling rig, which works alternately with a roadheader to enter the face for support. The entire machine's anchoring section can be extended, allowing simultaneous support of two rows of anchor bolts. A single row can support three anchor bolts simultaneously, and the two outer drilling arms of the same row can extend to support two anchor bolts on the outer side of the roadway simultaneously. The outer anchoring drilling rigs 16 in the front and rear rows can support side anchor bolts, allowing simultaneous support of four side anchor bolts. Although the machine has a narrow body design, it carries multiple anchoring drilling rigs 16 arranged in two rows, all of which can operate simultaneously, greatly improving work efficiency.

[0026] To facilitate the installation of the anchoring drill rig 16, the support part of this invention includes a middle drill rig fixing seat 13 fixedly mounted on the crossbeam. One end of the middle drill rig fixing seat 13 is provided with a left-side shifting module 3, and the other end is provided with a right-side shifting module 5. The two middle anchoring drill rigs 16 are respectively arranged on the two crossbeams, and the four outer drill rigs are respectively fixed on the left and right-side shifting modules. For easy distinction, the two crossbeams of this invention are respectively named the front moving crossbeam 2 and the rear moving crossbeam 4. The front moving crossbeam 2 and the rear moving crossbeam 4 are respectively connected to the side wall of the platform body 1 through telescopic sleeves. A hydraulic cylinder is provided inside the telescopic sleeve. Wear-resistant strips are installed on the telescopic sleeves, and the gap between the sliding pairs is adjusted by the wear-resistant strips to make the sliding smoother. The wear-resistant strips can be replaced after wear, and lubrication holes are designed on the outside for easy lubrication. Grease injection; the front moving crossbeam 2 and the rear moving crossbeam 4 are respectively connected to the pull-out base plate on the platform body 1. When the front moving crossbeam 2 and the rear moving crossbeam 4 slide on the platform body 1, the front moving crossbeam 2 and the rear moving crossbeam 4 respectively pull out the pull-out base plate, making the platform body 1 wider, avoiding the formation of a slip area after the platform width is extended, which would cause the operator to slip and improve safety; the left moving module 3 and the right moving module 5 are respectively connected to the crossbeam through horizontally arranged telescopic sleeves. The telescopic sleeves are equipped with hydraulic cylinders, so that the left moving module 3 and the right moving module 5 can move left and right on the crossbeam; the sliding of the front moving crossbeam 2, the rear moving crossbeam 4 and the left and right moving modules are driven by the hydraulic control valve group controlling their respective hydraulic cylinders. The telescopic hydraulic cylinders are arranged in the sleeves, making reasonable use of space. Two rows of anchoring drills 16 are symmetrically arranged, and the spacing between the two rows can be adjusted from 300mm to 1300mm. Each row has three anchoring drills 16. The two middle anchoring drills 16 have a rotational freedom of 5° forward and backward and 5° left and right. The four outer anchoring drills 16, which are set on the side-shifting module, have a rotational freedom of 5° forward and backward, 30° inward and 150° outward, as well as an outward sliding freedom with a sliding stroke of 1000mm.

[0027] In use, during the walking state, the lifting device retracts; the front moving crossbeam 2, rear moving crossbeam 4, and left and right moving modules of the platform body 1 are in the retracted state; the platform body 1 rotates until its length is parallel to the machine body, and the overall width is at its minimum. The lifting device is lowered to the lowest position, and the whole machine is in the walking state. In the working state, the platform body 1 rotates horizontally until its length is perpendicular to the machine body, the lifting device is raised to a suitable position, the front moving crossbeam 2 and rear moving crossbeam 4 are extended, and then the left and right moving modules are moved outward to the set positions respectively for anchoring operations; or, during operation, the left and right moving modules can be moved to the sides first, and then the front moving crossbeam 2 and rear moving crossbeam 4 are moved forward and backward respectively. Both ends of the platform body 1 and the outer side of the crossbeams are hinged with flaps 12, which are unfolded during operation for personnel to step on. When the outer anchoring drill 16 extends outward, it facilitates personnel operation. The scissor lift platform can be operated to adapt to roadways of different heights. The platform body 1 can rotate 90°. When traveling, the platform body 1 is parallel to the machine body. The platform body 1 can be vertically raised and lowered under the action of the lifting device, and has a traveling function. When working, the platform body 1 is perpendicular to the machine body. The front and rear rows of anchor drilling rigs 16 extend and retract forward and backward respectively, and unfold to the pre-support state. During the working process, the pipeline and cable go from the rotation center position from the frame to the platform body 1. When the platform body 1 rotates, the pipeline is relatively stationary and is not disturbed.

[0028] The control of the swing angle and direction of the anchoring drill 16 during operation can be achieved using structures such as hydraulic cylinders, rotary wheels, and gear racks. In a preferred embodiment, a swing bracket is connected to the support part via a rotating mechanism 10. One side of the anchoring drill 16 is connected to the swing bracket via a connecting shaft, and the rotation direction of the connecting shaft is perpendicular to the rotation direction of the rotating mechanism 10. The rotating mechanism 10 is connected to a horizontal rotary reducer 15, which can control the rotating mechanism to drive the frame and the anchoring drill on it to rotate at a set angle. The rotating mechanism 10 can be a gear that cooperates with the horizontal rotary reducer 15, or it can be a worm gear structure or a turntable structure. A horizontally arranged front and rear tilting cylinder 11 is installed inside the support part. The end of the front and rear tilting cylinder 11 is connected to the inside of the anchoring drill, so that the extension and retraction of the front and rear tilting cylinder 11 can drive the anchoring drill 16 to swing back and forth at a small angle around the swing bracket along the connecting shaft.

[0029] In a preferred embodiment, the lifting device is a scissor lift with a lifting stroke of 1000mm. It includes an upper base 7 connected to the bottom of the platform body 1. The bottom of the upper base 7 is connected to a lower base 6 via an X-shaped hinged first scissor 8 and a second scissor 14. The first scissor 8 is hinged to one end of the lower base 6, and the second scissor 14 is slidably mounted on a base rail of the lower base 6 via a slider. A scissor lifting cylinder 9 is mounted on the slider, and its top is hinged to the bottom of the upper base 7. A rotary mechanism is mounted on the upper base 7, with its top connected to the platform body 1. The rotary mechanism is driven by a rotary reducer. To facilitate the installation of the anchor mesh assembly, the platform body 1 has a canopy 17. A canopy outer sleeve is fixedly connected to the bottom of the canopy 17 and fitted onto an inner sleeve. A drive device is mounted on the inner sleeve, enabling the canopy outer sleeve to move up and down.

[0030] The platform of this invention can rotate 90°. When moving, the platform is parallel to the machine body and can be vertically raised and lowered, providing a walking function. During operation, the platform rotates horizontally to be perpendicular to the machine body, and the front and rear rows of anchoring drills extend and retract forward and backward, unfolding to a pre-support state. Pipelines and cables run from the rotation center from the frame to the platform. When the platform rotates, the pipelines remain relatively stationary and undisturbed. Multiple anchoring drills are arranged on the drilling rig, symmetrically in two rows. The operator stands in the middle and can operate 2-3 anchoring drills in each of the two rows on one side. The two rows of anchoring drills are arranged on the front and rear moving crossbeams, both capable of forward and backward extension and retraction, allowing for adjustment of the row spacing. The drill arms in the same row can also be adjusted in angle forward, backward, left, and right. The outer drills in the same row can slide, meeting the requirements for roof anchor support in roadways of different widths.

[0031] In the description of this invention, it should be noted that the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An anchoring device with rotation and lifting functions, characterized in that: The platform includes a main body, on both sides of which crossbeams are symmetrically arranged, and the crossbeams can move horizontally toward or away from the main body of the platform. A support portion is provided on the crossbeam; An anchoring drill rig, which is installed on the support, can be raised and lowered, and can swing at a set angle on the support; A lifting device is installed at the bottom of the platform body and is capable of driving the platform body to rotate and lift. The support includes an intermediate drilling rig mounting base fixedly mounted on the crossbeam. One end of the intermediate drilling rig mounting base is provided with a left-side shifting module, and the other end is provided with a right-side shifting module. The anchoring drilling rig is movably mounted on the intermediate drilling rig mounting base, the left-side shifting module, and the right-side shifting module. The left-side shifting module and the right-side shifting module can move left and right on the crossbeam. The crossbeam includes a front-moving crossbeam and a rear-moving crossbeam symmetrically arranged on both sides of the platform body. The front-moving crossbeam and the rear-moving crossbeam are respectively connected to the side wall of the platform body via telescopic sleeves. A hydraulic cylinder is installed inside the telescopic sleeve. Wear-resistant strips are installed on the telescopic sleeve. The lifting device includes an upper base connected to the bottom of the platform body. The bottom of the upper base is connected to a lower base via a first scissor lift and a second scissor lift with an X-shaped hinge. The first scissor lift is hinged to one end of the lower base, and the second scissor lift is slidably mounted on a base rail of the lower base via a slider. A scissor lift cylinder is mounted on the slider, and the top of the scissor lift cylinder is hinged to the bottom of the upper base. A rotary reducer is mounted on the upper base, and the top of the rotary reducer is connected to the platform body. The rotary reducer can drive the platform body to rotate horizontally. A front moving crossbeam and a rear moving crossbeam are respectively connected to a pull-out base plate on the platform body. When the front moving crossbeam and the rear moving crossbeam slide on the platform body, the front moving crossbeam and the rear moving crossbeam respectively pull out the pull-out base plate, making the platform body wider.

2. The anchoring device with rotation and lifting functions according to claim 1, characterized in that: A swing bracket is connected to the support part via a rotating mechanism. One side of the anchoring drill is connected to the swing bracket via a connecting shaft. The rotation direction of the connecting shaft is perpendicular to the rotation direction of the rotating mechanism. A horizontal rotary reducer is connected to the rotating mechanism. A horizontally arranged front and rear tilting cylinder is installed inside the support part. The end of the front and rear tilting cylinder is connected to the inside of the anchoring drill.

3. The anchoring device with rotation and lifting functions according to claim 1, characterized in that: The platform body is provided with a canopy, and an outer canopy sleeve is fixedly connected to the bottom of the canopy. The outer canopy sleeve is fitted onto the inner canopy sleeve. A driving device is provided on the inner canopy sleeve, and the driving device can drive the outer canopy sleeve to move up and down.

4. The anchoring device with rotation and lifting functions according to claim 1, characterized in that: The platform body has hinged flaps at both ends and on the outside of the crossbeam.

5. The anchoring device with rotation and lifting functions according to claim 1, characterized in that: The left-side shifting module and the right-side shifting module are respectively connected to the crossbeam via horizontally arranged telescopic sleeves, and the telescopic sleeves are equipped with hydraulic cylinders.

6. The anchoring device with rotation and lifting functions according to claim 1, characterized in that: The anchoring drill located on the left and right shifting modules can rotate 150° away from the middle drill rig fixed seat and 30° towards the middle drill rig fixed seat.

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