Segmented hollow grouting anchor cable end anchoring device

Abstract

This invention relates to the field of anchor cable end anchoring technology, and particularly to a segmented hollow grouting anchor cable end anchoring device, comprising a tracked chassis, a rotating unit, a drilling unit, a lifting unit, and a wire tensioning unit. Existing segmented hollow grouting anchor cable end fixing methods may fail to achieve the expected anchoring force in special geological conditions, easily leading to support system failures such as slippage and instability. The present invention provides a rotating unit, drilling unit, lifting unit, and wire tensioning unit for use in a wheel set detection device for rail vehicle running gear. This unit works in conjunction to move the support plate to the required position, avoiding the problem of tracked chassis positional shift during operation. It allows for drilling and installation of ground piles at the pit end face, and by controlling the tension of the wire rope, achieves the effect of locking and fixing multiple hollow grouting anchor cables at their centers, preventing support system failures such as slippage and instability. Furthermore, it allows for the simultaneous installation or removal of multiple hollow bolts, improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of anchor cable end anchoring technology, and particularly to a segmented hollow grouting anchor cable end anchoring device. Background Technology

[0002] Segmented hollow grouting anchors are a foundation reinforcement and support technology used in underground engineering and geotechnical engineering. An anchor rod refers to a slender rod that penetrates deep into the soil or rock to control deformation, including components such as washers and nuts. To install segmented hollow grouting anchors, a rock drill is first used to drill a hole to the designed anchor rod depth. A steel anchor head is then installed onto the anchor rod body and inserted into the hole. Next, the grout stopper, washer, and nut are installed in sequence. The anchor rod is then reversed to allow the expansion shell anchor head to expand and grip the hole wall. Finally, grouting is performed.

[0003] The existing method of fixing the ends of segmented hollow grouting anchor cables usually involves locking the mounting plate and nuts. This common grouting anchoring device may not be able to achieve the expected anchoring force in special geological rocks, such as those with high mud content, poor cementation, or softening when exposed to water. It is prone to slippage, instability, and other support system failures. Furthermore, it does not lock and connect multiple segmented hollow grouting anchor cables. Summary of the Invention

[0004] Technical problem to be solved: The present invention provides a segmented hollow grouting anchor cable end anchoring device, which can solve the above-mentioned problems.

[0005] Technical Solution: To achieve the above objectives, the present invention adopts the following technical solution: a segmented hollow grouting anchor cable end anchoring device, comprising a tracked chassis, a rotating unit installed on the upper end of the tracked chassis, a drilling unit installed in the middle of the upper end of the rotating unit, lifting units installed on both the front and rear sides of the drilling unit, and multiple wire tensioning units installed in a matrix along the upper edge of the lifting unit.

[0006] The segmented hollow grouting anchor cable end anchoring device is used to fix the hollow grouting anchor cable whose end is locked and fixed by a pad and a nut. The multiple pads are arranged in a matrix and the opposite ends of the multiple pads correspond to each other. A rectangular support frame is installed on the right end of the pad, and bolt mounting holes are opened on the four end faces of the rectangular support frame. Hollow bolts are threaded into the bolt mounting holes on the opposite ends of the multiple rectangular support frames.

[0007] The wire tensioning unit includes a support plate with an avoidance opening on the left side of the rotating unit, and multiple bolt clamping mechanisms installed along the matrix at the left end of the support plate, with bolt tightening mechanisms installed on the bolt clamping mechanisms.

[0008] The bolt clamping mechanism includes multiple oblong grooves on a support plate corresponding to multiple rectangular support frames. L-shaped connecting rods are symmetrically slidably installed within these grooves. A circular slider is installed at the end of the L-shaped connecting rod closest to the groove, and a semi-circular cover plate is installed at the end of the L-shaped connecting rod furthest from the groove. Two adjacent semi-circular cover plates are interlocked to form a complete circular cover plate. Circular clearance holes are provided on both the front and back ends of the complete circular cover plate. An isosceles trapezoidal plate is slidably installed on the right end of the support plate corresponding to every two circular sliders. An isosceles trapezoidal groove is formed in the middle of the isosceles trapezoidal plate corresponding to the two circular sliders. An isosceles triangle plate is installed at the center of the base of the isosceles trapezoidal groove. The two hypotenuses of the angled plate roll into contact with two circular sliders, which in turn roll into contact with the inner wall of the isosceles trapezoidal groove. A cam rolls into contact with the end of the isosceles trapezoidal plate away from the clearance opening. A drive shaft is installed through the end of the cam away from the isosceles trapezoidal plate and is rotatably connected to the support plate. A pulley is installed in the middle of the drive shaft, and multiple pulleys are fitted with a belt. A rotary motor is installed on the support plate through a motor mount. The output shaft of the rotary motor is connected to any one of the drive shafts. Two support blocks are symmetrically arranged on the side of the cam away from the two circular sliders and mounted on the support plate. Both support blocks are connected to the isosceles trapezoidal plate by a compression spring.

[0009] As a preferred embodiment of the present invention, the bolt tightening mechanism includes semi-annular grooves symmetrically opened at opposite ends of the front and back faces of a semi-circular cover plate. A slide rod is slidably installed in the semi-annular groove. A semi-circular gear is installed at the opposite ends of two slide rods, and two adjacent semi-circular gears are engaged to form a complete circular gear. A hexagonal groove is opened in the middle of the complete circular gear. Circular mounting grooves are opened at both ends of the arc-shaped inner wall of the semi-circular cover plate. A semi-circular head limiting rod is connected to the circular mounting groove through a second compression spring. The semi-circular head limiting rod abuts against the tooth groove of the circular gear. An arc-shaped notch is opened at the end of one semi-circular cover plate away from the other semi-circular cover plate. A driven gear that meshes with the complete circular gear is provided in the arc-shaped notch. A connecting rod is rotatably connected to the end of the driven gear near the clearance opening, and the end of the connecting rod is connected to the nearby L-shaped connecting rod. A first-hand reversible motor is installed on the support plate at the position corresponding to the driven gear through a motor mount. The output shaft of the first-hand reversible motor is connected to a driving gear, and the driving gear meshes with the driven gear.

[0010] As a preferred embodiment of the present invention, the rotating unit includes a support cylinder rotatably mounted on the upper middle part of the tracked chassis. A load-bearing plate with two movable holes at the left end is mounted on the upper end of the support cylinder. A toothed ring is mounted on the outer surface of the support cylinder and at the lower end of the load-bearing plate. A second forward and reverse motor is mounted on the left side of the upper end of the tracked chassis via a motor mount. The output shaft of the second forward and reverse motor is connected to a transmission gear, and the transmission gear meshes with the toothed ring.

[0011] As a preferred embodiment of the present invention, the drilling unit includes two pairs of lugs mounted on the left side of the upper end of the load-bearing plate. A supporting round rod is mounted on both pairs of lugs. Two L-shaped connecting plates, distributed front and rear, are hinged between the two lugs on the outer wall of the supporting round rod. Slide rails are mounted on opposite ends of the two L-shaped connecting plates. A third forward / reverse motor is installed between the two slide rails, and the third forward / reverse motor is slidably mounted between the two slide rails via a motor mount. The output shaft of the third forward / reverse motor is connected to a drill chuck. A first pneumatic push rod is mounted on the right side of both the front and rear L-shaped connecting plates via a mounting base. The telescopic end of the first pneumatic push rod is connected to the right end of the third forward / reverse motor. A first lug is symmetrically mounted on the middle of the upper end of the load-bearing plate between the front and rear L-shaped connecting plates. A first hydraulic push rod is positioned between the two first lugs and the two front and rear L-shaped connecting plates, with both ends of the first hydraulic push rod hinged to the two first lugs and the two front and rear L-shaped connecting plates, respectively.

[0012] As a preferred embodiment of the present invention, the lifting unit includes a first connecting rod that is hinged to two movable holes corresponding to a support rod. The end of the first connecting rod is connected to the lower right side of the support plate. A second connecting rod is symmetrically installed on the upper right side of the support plate. Two pairs of second ear plates are installed on the upper part of the load-bearing plate corresponding to the two second connecting rods. The end of the second connecting rod away from the support plate is hinged to a pair of second ear plates on the right side. The end of the second connecting rod facing the load-bearing plate is also equipped with a pair of second ear plates. A second hydraulic push rod is provided between the two pairs of second ear plates on the upper part of the load-bearing plate. The left end of the second hydraulic push rod is hinged to a pair of second ear plates on the left side of the upper part of the load-bearing plate. The telescopic end of the second hydraulic push rod is hinged to a pair of second ear plates on the second connecting rod.

[0013] As a preferred technical solution of the present invention, a ground pile with a threaded section on the right end is installed at the center position surrounded by multiple pads. A connecting plate is connected to the right side of the ground pile by a thread. The connecting plate has symmetrical circular through holes. A wire rope buckle is slidably installed in the two circular through holes. A No. 2 nut is installed at the end of the two threaded ends of the wire rope buckle that is close to the ground pile.

[0014] As a preferred technical solution of the present invention, a plurality of second pneumatic push rods for support and fixation are installed along the matrix at the upper end of the load-bearing plate, and the telescopic end of the second pneumatic push rod has a semi-circular head structure.

[0015] Beneficial effects: 1. The bolt clamping mechanism used in the segmented hollow grouting anchor cable end anchoring device provided by the present invention can clamp the head of the hexagonal bolt, and in conjunction with the bolt tightening mechanism, it can simultaneously lock the hexagonal bolt, thereby improving the efficiency of tightening multiple bolts.

[0016] 2. The segmented hollow grouting anchor cable end anchoring device provided by the present invention uses a drilling unit to drill holes on the end face of the foundation pit to install ground piles, and uses wire rope clips and hollow bolts to connect the wire ropes, thereby achieving the effect of locking and connecting multiple hollow grouting anchor cables at the center.

[0017] 3. The segmented hollow grouting anchor cable end anchoring device provided by the present invention uses a lifting unit and a steel wire tensioning unit to adjust the angle and position of the support plate. The tension of the steel wire rope is controlled by the hollow bolts to achieve the effect of locking and fixing the center of multiple hollow grouting anchor cables, avoiding the problem of support system failure such as slippage and instability. In addition, multiple hollow bolts can be installed or removed at the same time, improving work efficiency. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is the front view of the present invention.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a front sectional view of the present invention.

[0023] Figure 5 This is the present invention. Figure 4 A magnified view of point X in the middle.

[0024] Figure 6 This is a frontal sectional view of the pad and the first nut of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the bolt tightening mechanism of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the bolt clamping mechanism of the present invention.

[0027] Figure 9 This is a cross-sectional view of the semi-circular cover plate and the semi-circular gear of the present invention.

[0028] Figure 10 This is a longitudinal sectional view of the engagement point between the semi-circular cover plate and the semi-circular gear of the present invention.

[0029] Figure 11 This is a partial cross-sectional three-dimensional structural diagram of the semi-circular cover plate and the semi-circular gear of the present invention.

[0030] Figure 12This is a schematic diagram of the method for inserting the hollow bolt and wire rope clip into the wire rope in this invention.

[0031] In the diagram: 1. Tracked chassis; 2. Rotating unit; 21. Support cylinder; 22. Movable hole; 23. Load-bearing plate; 24. Gear ring; 25. Second reversible motor; 26. Transmission gear; 3. Drilling unit; 31. Lug; 32. Support rod; 33. L-shaped connecting plate; 34. Slide rail; 35. Third reversible motor; 36. Drill chuck; 37. First pneumatic push rod; 38. First lug plate; 39. 4. Lifting Unit; 41. Connecting Rod 1; 42. Connecting Rod 2; 43. Ear Plate 2; 44. Hydraulic Push Rod 2; 5. Wire Tensioning Unit; 51. Clearance Opening; 52. Support Plate; 53. Bolt Clamping Mechanism; 531. Waist-shaped Groove; 532. L-shaped Connecting Rod; 533. Circular Slider; 534. Semi-circular Cover Plate; 535. Circular Clearance Hole; 536. Isosceles Trapezoidal Plate; 537. 538. Isosceles trapezoidal groove; 539. Cam; 540. Drive shaft; 541. Pulley; 542. Belt; 543. Rotary motor; 544. Support block; 545. Compression spring No. 1; 546. Isosceles triangular plate; 55. Bolt tightening mechanism; 557. Semi-circular slide; 558. Slide rod; 559. Semi-circular gear; 550. Hexagonal slide; 551. Circular mounting groove; 552. Compression spring No. 2; 5 57. Semi-circular head limit rod; 558. Arc-shaped notch; 559. Passive gear; 560. Connecting rod; 561. No. 1 forward and reverse motor; 562. Drive gear; 6. Pad; 7. No. 1 nut; 8. Rectangular support frame; 9. Bolt mounting hole; 10. Hollow bolt; 11. Ground stake; 12. Connecting plate; 13. Circular through hole; 14. Wire rope buckle; 15. No. 2 nut; 16. No. 2 pneumatic push rod. Detailed Implementation

[0032] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0033] See Figure 1 A segmented hollow grouting anchor cable end anchoring device includes a tracked chassis 1. A rotating unit 2 is installed on the upper end of the tracked chassis 1. A drilling unit 3 is installed in the middle of the upper end of the rotating unit 2. Lifting units 4 are installed on both the front and rear sides of the drilling unit 3. Multiple steel wire tensioning units 5 are installed in a matrix along the upper edge of the lifting unit 4.

[0034] The segmented hollow grouting anchor cable end anchoring device is used to fix the hollow grouting anchor cable whose end is locked and fixed by the pad 6 and the first nut 7. The multiple pads 6 are arranged in a matrix and the opposite ends of the multiple pads 6 correspond to each other. A rectangular support frame 8 is installed on the right end of the pad 6, and bolt mounting holes 9 are opened on the four end faces of the rectangular support frame 8. Hollow bolts 10 are threadedly connected to the bolt mounting holes 9 on the opposite ends of the multiple rectangular support frames 8.

[0035] See Figure 1 , Figure 6 , Figure 7 and Figure 8 The wire tensioning unit 5 includes a support plate 52 with an avoidance opening 51 on the left side of the rotating unit 2, and multiple bolt clamping mechanisms 53 installed along the matrix at the left end of the support plate 52. Bolt tightening mechanisms 55 are installed on the bolt clamping mechanisms 53.

[0036] See Figure 3 and Figure 4 The rotating unit 2 includes a support cylinder 21 rotatably mounted on the upper middle part of the tracked chassis 1. A load-bearing plate 23 with two movable holes 22 on the left end is mounted on the upper end of the support cylinder 21. A toothed ring 24 is mounted on the outer surface of the support cylinder 21 and located at the lower end of the load-bearing plate 23. A second forward and reverse motor 25 is mounted on the upper left side of the tracked chassis 1 through a motor mount. The output shaft of the second forward and reverse motor 25 is connected to a transmission gear 26, and the transmission gear 26 meshes with the toothed ring 24.

[0037] See Figure 1 and Figure 2 The upper end of the load-bearing plate 23 is equipped with multiple second pneumatic push rods 16 for support and fixation along the matrix, and the telescopic end of the second pneumatic push rod 16 has a semi-circular head structure.

[0038] First, multiple holes are drilled horizontally and vertically on the end face of the foundation pit using external drilling equipment. Then, hollow grouting anchor cables are manually inserted into the holes, and grout stop plugs are installed to seal the holes. Next, pad plate 6 and nut No. 1 7 are manually installed to complete the initial locking and fixing of the hollow grouting anchor cables. The transmission gear 26 and gear ring 24 are driven by the second forward and reverse motor 25 to drive the support column 21 to rotate. The support column 21 drives the load-bearing plate 23 to rotate to the position corresponding to the hollow grouting anchor cable placed in the foundation pit. The second pneumatic push rod 16 is activated to control the semi-circular head extension end to move downward until it contacts the ground. The rotating unit 2 can freely control the direction of the load-bearing plate 23, thereby driving the support plate 52 to move to the required position, which facilitates subsequent drilling and secondary locking and fixing work. The second pneumatic push rod 16 can also prevent the tracked chassis 1 from shifting position during subsequent work.

[0039] See Figure 1 , Figure 3 and Figure 4 The drilling unit 3 includes two pairs of lugs 31 mounted on the upper left side of the load-bearing plate 23. A supporting round rod 32 is mounted on both pairs of lugs 31. Two L-shaped connecting plates 33, distributed front to back, are hinged between the two lugs 31 on the outer wall of the supporting round rod 32. Slide rails 34 are mounted on opposite ends of the two L-shaped connecting plates 33. A third forward / reverse motor 35 is arranged between the two slide rails 34, and the third forward / reverse motor 35 is slidably mounted between the two slide rails 34 via a motor base. The output shaft of the third forward / reverse motor 35... A drill chuck 36 is connected to the right side of the two L-shaped connecting plates 33, and a pneumatic push rod 37 is mounted on the mounting base. The telescopic end of the pneumatic push rod 37 is connected to the right end of the three forward and reverse motors 35. A lug plate 38 is symmetrically installed on the upper middle part of the load-bearing plate 23 between the two L-shaped connecting plates 33. A hydraulic push rod 39 is set between the two lug plates 38 and the two L-shaped connecting plates 33, and the two ends of the hydraulic push rod 39 are respectively hinged to the two lug plates 38 and the two L-shaped connecting plates 33.

[0040] See Figure 5 and Figure 12 A ground pile 11 with a threaded section on the right end is installed at the center position surrounded by multiple pads 6. A connecting plate 12 is threadedly connected to the right side of the ground pile 11. The connecting plate 12 has symmetrically opened circular through holes 13. A wire rope buckle 14 is slidably installed in the two circular through holes 13. A No. 2 nut 15 is threadedly installed at the two threaded ends of the wire rope buckle 14 near the ground pile 11.

[0041] Start the first hydraulic push rod 39 to make it push the two L-shaped connecting plates 33 to rotate around the supporting round rod 32 until the two L-shaped connecting plates 33 together drive the drill chuck 36 to correspond to the center of the multiple pads 6 arranged along the matrix. The drill bit is manually installed on the drill chuck 36. The drill chuck 36 is controlled by the third forward and reverse motor 35 to drive the drill bit to rotate. At the same time, the third forward and reverse motor 35 is controlled by the first pneumatic push rod 37 to move along the front and rear slide rails 34 towards the multiple pads 6 until the drilling is completed. The third forward and reverse motor 35 is controlled by the first pneumatic push rod 37 to return to its original position. The drill bit is manually removed and replaced with a ground pile 11. The above operation is repeated to send the ground pile 11 into the drilled hole. Then, the wire rope clip 14 is installed manually, and the wire rope is simultaneously passed through two corresponding hollow bolts 10 and the wire rope clip 14. The part of the wire rope that exceeds the threaded end of the two hollow bolts 10 is cut off and knotted to prevent the wire rope from falling off. The above operation is repeated to connect the wire ropes to the other two corresponding hollow bolts 10. The wire rope clip 14 is locked and installed by two No. 2 nuts 15. At this time, the two wire ropes in the wire rope clip 14 are in a locked state. The drilling unit 3 can drill holes to install the ground piles 11 on the end face of the foundation pit, and connect the wire ropes with the wire rope clip 14 and the hollow bolts 10 to achieve the effect of locking and connecting multiple hollow grouting anchor cables at the center.

[0042] See Figures 1-4 The lifting unit 4 includes a first connecting rod 41 that is hinged to the two movable holes 22 corresponding to the support rod 32. The end of the first connecting rod 41 is connected to the lower right side of the support plate 52. The second connecting rod 42 is symmetrically installed on the upper right side of the support plate 52. The upper end of the load-bearing plate 23 is equipped with two pairs of second ear plates 43 distributed on the left and right respectively corresponding to the two second connecting rods 42. The end of the second connecting rod 42 away from the support plate 52 is hinged to a pair of second ear plates 43 on the right side. The end of the second connecting rod 42 facing the load-bearing plate 23 is also equipped with a pair of second ear plates 43. A second hydraulic push rod 44 is set between the two pairs of second ear plates 43 on the upper end of the load-bearing plate 23. The left end of the second hydraulic push rod 44 is hinged to a pair of second ear plates 43 on the left side of the upper end of the load-bearing plate 23. The telescopic end of the second hydraulic push rod 44 is hinged to a pair of second ear plates 43 on the second connecting rod 42.

[0043] See Figure 5 , Figure 7 , Figure 8 and Figure 10The bolt clamping mechanism 53 includes a support plate 52 with multiple oblong grooves 531 corresponding to multiple rectangular support frames 8. L-shaped connecting rods 532 are symmetrically slidably installed within the oblong grooves 531. A circular slider 533 is installed at the end of the L-shaped connecting rod 532 closest to the oblong groove 531, and a semi-circular cover plate 534 is installed at the end of the L-shaped connecting rod 532 away from the oblong groove 531. Two adjacent semi-circular cover plates 534 are snapped together to form a complete circular cover plate. Circular clearance holes 535 are provided on both the front and back ends of the complete circular cover plate. An isosceles trapezoidal plate 536 is slidably installed on the right end of the support plate 52 corresponding to every two circular sliders 533. An isosceles trapezoidal groove 537 is provided in the middle of the isosceles trapezoidal plate 536 corresponding to two circular sliders 533. An isosceles triangular plate 545 is installed at the center of the bottom edge of the isosceles trapezoidal groove 537. Two inclined sides roll into contact with two circular sliders 533, and the two circular sliders 533 roll into contact with the inner wall of the isosceles trapezoidal groove 537. The end of the isosceles trapezoidal plate 536 away from the clearance opening 51 rolls into contact with a cam 538. The end of the cam 538 away from the isosceles trapezoidal plate 536 is through which a drive shaft 539 is installed, and the drive shaft 539 is rotatably connected to the support plate 52. A pulley 540 is installed in the middle of the drive shaft 539, and multiple pulleys 540 are together fitted with a belt 541. The support plate 52 is equipped with a rotary motor 542 through a motor base. The output shaft of the rotary motor 542 is connected to any one of the drive shafts 539. Two support blocks 543 are symmetrically arranged on the side of the cam 538 away from the two circular sliders 533 and installed on the support plate 52. Both support blocks 543 are connected to the isosceles trapezoidal plate 536 through a compression spring 544.

[0044] See Figure 5 , Figure 7 , Figure 9 , Figure 10 and Figure 11The bolt tightening mechanism 55 includes semi-annular grooves 551 symmetrically opened at opposite ends of the front and back faces of a semi-circular cover plate 534. A slide rod 552 is slidably installed within the semi-annular groove 551. A semi-circular gear 553 is installed at the opposite ends of two slide rods 552, and two adjacent semi-circular gears 553 are engaged to form a complete circular gear. A hexagonal groove 554 is opened in the middle of the engaged circular gear. Circular mounting grooves 555 are opened at both ends of the arc-shaped inner wall of the semi-circular cover plate 534. A semi-circular head limiting rod 557 is connected to the circular mounting groove 555 via a second compression spring 556. The semi-circular head limiting rod 557 and the circular gear... The tooth grooves of the wheels abut each other. One of the semicircular cover plates 534 has an arc-shaped notch 558 at one end away from the other semicircular cover plate 534. A driven gear 559 that meshes with the complete circular gear is provided in the arc-shaped notch 558. A connecting rod 560 is rotatably connected to one end of the driven gear 559 near the clearance opening 51, and the end of the connecting rod 560 is connected to the nearby L-shaped connecting rod 532. A first forward and reverse motor 561 is installed on the support plate 52 at the position corresponding to the driven gear 559 through the motor base. The output shaft of the first forward and reverse motor 561 is connected to the driving gear 562, and the driving gear 562 meshes with the driven gear 559.

[0045] Working process: The second hydraulic push rod 44 is activated, causing the second connecting rod 42 to rotate around the pair of second ear plates 43 on the upper right side of the load-bearing plate 23. Simultaneously, the first connecting rod 41 rotates around the supporting round rod 32 until the second connecting rod 42 and the first connecting rod 41 together move the support plate 52 to a position corresponding to the multiple pads 6 arranged along the matrix. At this time, the two semi-circular cover plates 534 are in a state of separation. Under the action of the first compression spring 544, the pulley 540 and belt 541 are controlled by the rotary motor 542 to drive the multiple transmission shafts 539 to rotate. The multiple transmission shafts 539 are connected to the cam 538. Each of the two circular sliders 533 moves the corresponding isosceles trapezoidal plates 536 away from the clearance opening 51 until the two circular sliders 533 move the two semi-circular cover plates 534 closer together and snap into a circular cover plate. At this time, the driven gear 559 moves with the corresponding L-shaped connecting rod 532 through the connecting rod 560, and the driven gear 559 meshes with the driving gear 562. At the same time, the two semi-circular gears 553 inside the snapped circular cover plate snap into a circular gear, and the snapped circular gear clamps the hollow bolt 10. The driving gear 562 and the driven gear 559 are driven by the first forward and reverse motor 561, thereby driving the two semi-circular cover plates 534 closer together and snapping into a circular cover plate. The gear controls the rotation of the hollow bolts 10. Since the portion of the wire rope extending beyond the threaded ends of the two hollow bolts 10 has been cut and knotted, and the hollow bolts 10 are threadedly connected to the bolt mounting holes 9, controlling the rotation of the two corresponding hollow bolts 10 controls the distance the hollow bolts 10 extend into the rectangular support frame 8. This causes the two corresponding hollow bolts 10 to move away from each other, jointly tightening the inserted wire ropes until both wire ropes reach the required tension to lock and fix the center of the hollow grouting anchor cable. In other words, the tension of the wire ropes is controlled by the distance the hollow bolts 10 screw into the rectangular support frame 8. After the locking and fixing work at the center of multiple hollow grouting anchor cables is completed, grouting can be carried out. When it is necessary to remove the hollow grouting anchor cables, repeat the above operation to remove the hollow bolts 10 and wire rope clips 14, and then manually cut the wire rope to remove the hollow grouting anchor cables. The lifting unit 4 and the wire tensioning unit 5 work together to adjust the angle and position of the support plate 52. The tension of the wire rope is controlled by the hollow bolts 10 to achieve the locking and fixing effect at the center of multiple hollow grouting anchor cables, avoiding problems such as slippage and instability of the support system failure. Multiple hollow bolts 10 can be installed or removed at the same time, improving work efficiency.

[0046] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," 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 embodiments of the present 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 embodiments of the present invention. Furthermore, in the description of the present invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0047] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A segmented hollow grouting anchor cable end anchoring device, comprising a tracked chassis (1), characterized in that, The tracked chassis (1) is equipped with a rotating unit (2) at the upper end, a drilling unit (3) is installed in the middle of the upper end of the rotating unit (2), and a lifting unit (4) is installed on both the front and rear sides of the drilling unit (3). Multiple wire tensioning units (5) are installed along the upper edge of the lifting unit (4). The segmented hollow grouting anchor cable end anchoring device is used to fix the hollow grouting anchor cable whose end is locked and fixed by the pad (6) and the first nut (7). The multiple pads (6) are arranged in a matrix and the opposite ends of the multiple pads (6) correspond to each other. A rectangular support frame (8) is installed on the right end of the pad (6), and bolt mounting holes (9) are opened on the four end faces of the rectangular support frame (8). Hollow bolts (10) are threadedly connected in the bolt mounting holes (9) on the opposite ends of the multiple rectangular support frames (8). The wire tensioning unit (5) includes a support plate (52) with an avoidance opening (51) provided on the left side of the rotating unit (2), and multiple bolt clamping mechanisms (53) installed along the matrix at the left end of the support plate (52), and a bolt tightening mechanism (55) installed on the bolt clamping mechanism (53). The bolt clamping mechanism (53) includes a support plate (52) with multiple waist-shaped grooves (531) corresponding to multiple rectangular support frames (8). L-shaped connecting rods (532) are symmetrically slidably installed within the waist-shaped grooves (531). A circular slider (533) is installed at one end of the L-shaped connecting rod (532) closest to the waist-shaped groove (531), and a semi-circular cover plate (534) is installed at the other end of the L-shaped connecting rod (532) away from the waist-shaped groove (531). Two adjacent semi-circular cover plates (534) are interlocked. A complete circular cover plate, with circular clearance holes (535) on both the front and back ends of the complete circular cover plate. An isosceles trapezoidal plate (536) is slidably arranged on the right end of the support plate (52) corresponding to every two circular sliders (533). An isosceles trapezoidal groove (537) is opened in the middle of the isosceles trapezoidal plate (536) corresponding to the two circular sliders (533). An isosceles triangular plate (545) is installed at the center of the bottom edge of the isosceles trapezoidal groove (537). The two hypotenuses of the isosceles triangular plate (545) are... Two circular sliders (533) are in rolling contact with each other, and the two circular sliders (533) are in rolling contact with the inner wall of the isosceles trapezoidal groove (537). The end of the isosceles trapezoidal plate (536) away from the clearance opening (51) is in rolling contact with a cam (538). The end of the cam (538) away from the isosceles trapezoidal plate (536) is through which a drive shaft (539) is installed. The drive shaft (539) is rotatably connected to the support plate (52). A pulley (540) is installed in the middle of the drive shaft (539), and multiple pulleys (540) are installed in the middle of the drive shaft (539). The pulleys (540) are all fitted with belts (541), and the support plate (52) is equipped with a rotary motor (542) through a motor mount. The output shaft of the rotary motor (542) is connected to any one of the transmission shafts (539). On the side of the cam (538) away from the two circular sliders (533), there are two support blocks (543) symmetrically mounted on the support plate (52). Both support blocks (543) are connected to the isosceles trapezoidal plate (536) through a compression spring (544). The bolt tightening mechanism (55) includes semi-annular grooves (551) symmetrically opened at opposite ends of the front and back faces of a semi-circular cover plate (534). A slide rod (552) is slidably installed in the semi-annular groove (551). A semi-circular gear (553) is installed at the opposite ends of the two slide rods (552), and two adjacent semi-circular gears (553) are engaged to form a complete circular gear. A hexagonal groove (554) is opened in the middle of the complete circular gear. Circular mounting grooves (555) are opened at both ends of the arc-shaped inner wall of the semi-circular cover plate (534). A semi-circular head limiting rod (557) is connected to the circular mounting groove (555) through a second compression spring (556). The semi-circular head limiting rod (557) and the teeth of the circular gear are connected in a circular groove (555). The slots abut against each other. One of the semicircular cover plates (534) has an arc-shaped notch (558) at the end away from the other semicircular cover plate (534). A driven gear (559) meshing with a complete circular gear is provided in the arc-shaped notch (558). A connecting rod (560) is rotatably connected to the end of the driven gear (559) near the clearance opening (51). The end of the connecting rod (560) is connected to the nearby L-shaped connecting rod (532). A first forward and reverse motor (561) is installed on the support plate (52) corresponding to the position of the driven gear (559) through the motor base. The output shaft of the first forward and reverse motor (561) is connected to the driving gear (562). The driving gear (562) meshes with the driven gear (559). The drilling unit (3) includes two pairs of lugs (31) installed on the upper left side of the load-bearing plate (23). The two pairs of lugs (31) are jointly mounted with a support rod (32). The outer wall of the support rod (32) is hinged between the two lugs (31) in the middle with two L-shaped connecting plates (33) distributed front and back. The opposite ends of the two L-shaped connecting plates (33) are each equipped with a slide rail (34). A No. 3 forward and reverse motor (35) is provided between the two slide rails (34). The No. 3 forward and reverse motor (35) is slidably mounted between the two slide rails (34) through a motor base. The output of the No. 3 forward and reverse motor (35) is... A drill chuck (36) is connected to the shaft. A pneumatic push rod (37) is mounted on the right side of the two L-shaped connecting plates (33) through the mounting base. The telescopic end of the pneumatic push rod (37) is connected to the right end of the three forward and reverse motors (35). A lug plate (38) is symmetrically installed on the upper middle part of the load-bearing plate (23) between the two L-shaped connecting plates (33). A hydraulic push rod (39) is set between the two lug plates (38) and the two L-shaped connecting plates (33). The two ends of the hydraulic push rod (39) are respectively hinged to the two lug plates (38) and the two L-shaped connecting plates (33). A ground pile (11) with a threaded section on the right end is installed at the center position surrounded by multiple pads (6). A connecting plate (12) is connected to the right side of the ground pile (11) by a thread. The connecting plate (12) has symmetrical circular through holes (13). A wire rope buckle (14) is slidably installed in the two circular through holes (13). A No. 2 nut (15) is installed at the end of the two threaded ends of the wire rope buckle (14) near the ground pile (11). Start the first hydraulic push rod (39) to push the two L-shaped connecting plates (33) to rotate around the supporting round rod (32) until the two L-shaped connecting plates (33) together drive the drill chuck (36) to correspond to the center of multiple pads (6) arranged along the matrix. The drill bit is manually installed on the drill chuck (36). The drill chuck (36) is controlled by the third forward and reverse motor (35) to drive the drill bit to rotate. At the same time, the third forward and reverse motor (35) is controlled by the first pneumatic push rod (37) to move along the front and rear slide rails (34) towards the multiple pads (6) until the drilling is completed. The third forward and reverse motor (35) is controlled by the first pneumatic push rod (37) to return to its original position. The drill bit is manually removed and replaced with a ground pile (11). The above operation is repeated. The ground pile (11) is inserted into the drilled hole, and then the steel wire rope clip (14) is installed manually. The steel wire rope is passed through the two corresponding hollow bolts (10) and the steel wire rope clip (14) at the same time. The part of the steel wire rope that exceeds the thread end of the two hollow bolts (10) is cut off and knotted to prevent the steel wire rope from falling off. The above operation is repeated to connect the steel wire rope to the other two corresponding hollow bolts (10). The steel wire rope clip (14) is locked and installed by two No. 2 nuts (15). At this time, the two steel wire ropes in the steel wire rope clip (14) are in a clamped state. The drilling unit (3) can drill holes to install the ground pile (11) on the end face of the foundation pit and connect the steel wire rope with the steel wire rope clip (14) and the hollow bolt (10).

2. The segmented hollow grouting anchor cable end anchoring device according to claim 1, characterized in that: The rotating unit (2) includes a support cylinder (21) rotatably mounted on the upper middle part of the tracked chassis (1). A load-bearing plate (23) with two movable holes (22) on the left end is mounted on the upper end of the support cylinder (21). A gear ring (24) is mounted on the outer surface of the support cylinder (21) and at the lower end of the load-bearing plate (23). A second forward and reverse motor (25) is mounted on the left side of the upper end of the tracked chassis (1) through a motor mount. The output shaft of the second forward and reverse motor (25) is connected to a transmission gear (26), and the transmission gear (26) meshes with the gear ring (24).

3. The segmented hollow grouting anchor cable end anchoring device according to claim 1, characterized in that: The lifting unit (4) includes a first connecting rod (41) hinged to two movable holes (22) corresponding to the support rod (32). The end of the first connecting rod (41) is connected to the lower right side of the support plate (52). A second connecting rod (42) is symmetrically installed on the upper right side of the support plate (52). Two pairs of second ear plates (43) are installed on the upper end of the load-bearing plate (23) corresponding to the two second connecting rods (42) on the front and back. The end of the second connecting rod (42) away from the support plate (52) is hinged to the right side. A pair of second ear plates (43) are mounted on the side. A pair of second ear plates (43) are also mounted on the end of the second connecting rod (42) facing the load-bearing plate (23). A second hydraulic push rod (44) is set between the two pairs of second ear plates (43) on the upper end of the load-bearing plate (23). The left end of the second hydraulic push rod (44) is hinged to a pair of second ear plates (43) on the left side of the upper end of the load-bearing plate (23). The telescopic end of the second hydraulic push rod (44) is hinged to a pair of second ear plates (43) on the second connecting rod (42).

4. The segmented hollow grouting anchor cable end anchoring device according to claim 2, characterized in that: The upper end of the load-bearing plate (23) is equipped with multiple second pneumatic push rods (16) for support and fixation, and the telescopic end of the second pneumatic push rod (16) is a semi-circular head structure.

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