Angle-adjustable automatic anchor cable lowering machine and anchor cable lowering construction method

Abstract

The present invention provides an angle-adjustable automatic anchor cable lowering machine and an anchor cable lowering construction method, comprising a lifting assembly and a propulsion assembly, wherein the lifting assembly comprises a base, two groups of guide columns are arranged on the base, a lifting support beam is arranged between the two groups of guide columns, the lifting support beam moves along the concave track inside the guide column, one end of the lifting oil cylinder is hinged to the base, and the other end is hinged to the lifting support beam, a propulsion assembly is arranged on the lifting support beam, the propulsion assembly comprises a propulsion track, a positioner is arranged at the upper end of the propulsion track, a lifter is arranged at the lower end, the positioner is installed on a fixed seat, the lifter is fixed on a sliding seat, the sliding seat moves along the propulsion track, a propulsion oil cylinder is arranged between the fixed seat and the sliding seat, the positioner and the lifter both comprise two groups of clamping oil cylinders, and the telescopic ends of the two groups of clamping oil cylinders are provided with clamping seats for clamping the anchor cable. The lowering machine and method can solve the technical problems of difficult installation, low efficiency, high cost and great safety hazards of the lowering of the arch anchor cable of the underground workshop.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy and hydropower engineering construction equipment, and in particular to an angle-adjustable anchor cable automatic cable lowering machine and an anchor cable lowering construction method. Background Art

[0002] During the excavation of large underground powerhouses in hydropower projects, it is often necessary to carry out prestressed anchor reinforcement support on the top arch of the underground powerhouse due to deformation of the surrounding rock of the top arch and changes in ground stress. However, as the height of the underground powerhouse excavation is too large, conventional anchor installation equipment will not be able to be used. In this case, it is only possible to set up a full-floor scaffolding on the current excavation surface of the underground powerhouse or use a large-span mobile platform to reinforce the top arch with anchors. The use of the rack method for construction will occupy the construction surface of the underground powerhouse, causing equipment and personnel to be idle, affecting the linear construction period, and increasing project costs. At the same time, there are a large number of people working up and down, and the anchor cable construction has a great impact on the stability of the rack, which poses a prominent safety risk. When using a mobile platform, due to limited carrying capacity and low work efficiency, and a large number of people and equipment entering and exiting the platform for cross-operation, the safety risks are also prominent. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an angle-adjustable automatic anchor cable lowering machine and an anchor cable lowering construction method, aiming to solve the technical problems of difficult installation, low efficiency, high cost and great safety hazards of anchor cable lowering of underground factory buildings.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an angle-adjustable automatic anchor cable lowering machine, including a lifting assembly and a propulsion assembly, the lifting assembly includes a base, two groups of guide columns are arranged on the base, a lifting support beam is provided between the two groups of guide columns, the lifting support beam moves along the concave track on the inner side of the guide column, one end of the lifting cylinder is hinged to the base, and the other end is hinged to the lifting support beam, and a propulsion assembly for propelling the anchor cable is provided on the lifting support beam.

[0005] In a preferred embodiment, the propulsion assembly includes a propulsion track, a positioner is provided at the upper end of the propulsion track, and a lifter is provided at the lower end. The positioner is installed on a fixed seat, and the lifter is fixed on a sliding seat. The sliding seat moves along the propulsion track. A propulsion cylinder is provided between the fixed seat and the sliding seat. The positioner and the lifter both include two sets of clamping cylinders. The telescopic ends of the two sets of clamping cylinders are provided with clamping seats for clamping the anchor cables.

[0006] In a preferred solution, a connecting plate is provided at the lower end of the propulsion track, and the connecting plate is connected to the lifting support beam.

[0007] In the preferred scheme, a bulletproof mechanism is provided between the two groups of clamping cylinders, and the bulletproof mechanism includes a hinge seat and a limit seat respectively arranged on the two groups of clamping cylinders. One end of the bulletproof strip is hinged to the hinge seat, and the other end is inserted between the two groups of ear plates of the limit seat and fixed by a limit pin.

[0008] In a preferred solution, a top plate beam is provided at the upper end of the guide column, and a guide slider for limiting the propulsion track is provided on the top plate beam.

[0009] In a preferred solution, the lower end of the guide column is rotatably connected to the steering support on the base via a pin shaft, a swing beam is provided between the two groups of guide columns, and an inclined driving mechanism is provided between the swing beam and the base to adjust the angle of the guide column.

[0010] In a preferred solution, the driving mechanism is a swing cylinder, one end of which is hinged to the base, and the other end of which is hinged to the swing beam.

[0011] The preferred solution includes a control and power component, which includes a hydraulic distribution assembly arranged on a guide column. The hydraulic distribution assembly is connected to the lifting cylinder, the swing cylinder, the driving component of the propulsion component and the control and power cabinet through pipelines.

[0012] An anchor cable laying construction method, using the above-mentioned angle-adjustable anchor cable automatic laying machine to carry out anchor cable laying construction, comprises the following steps:

[0013] Step 1: Lifting into place: Move the base to the construction position. After the test is normal, operate the lifting cylinder to lower the lifting joist to the low position. The clamping cylinders of the positioner and the lifter are operated to place the anchor cable between the clamping seats of the positioner and the lifter. The clamping cylinders of the positioner and the lifter are retracted to clamp the anchor cable. The lifting cylinder is extended to raise the lifting joist. The propulsion assembly and the anchor cable are lifted upward as a whole. The swing cylinder is started to adjust the angle of the propulsion assembly so that the end of the anchor cable is aligned with the anchor cable hole.

[0014] Step 2, cyclic advancement: the clamping cylinder of the positioner retracts and releases the clamping of the anchor cable. The advancement cylinder moves upward, driving the lifter to lift upward along the advancement track, driving the anchor cable to lift upward synchronously. After the advancement cylinder reaches the specified stroke, the clamping cylinder of the positioner extends, driving the clamping seat to clamp and fix the anchor cable. The clamping cylinder of the lifter retracts and releases the clamping of the anchor cable. The advancement cylinder moves downward, driving the sliding seat to move downward to the initial position. The clamping cylinder of the lifter extends and drives the clamping seat to clamp and fix the anchor cable. At this point, the installation of the anchor cable 4 of one stroke is completed. Repeat this step to push the anchor cable into the anchor cable hole in sections.

[0015] Step 3: Depressurize and finish work: After the installation of the anchor cable 4 is completed, the oil cylinders of the lifter, the positioner and the propulsion cylinder are depressurized first, and then the lifting cylinder begins to depressurize, driving the lifting support beam to drop down to the lowest position, and finally adjust the angle of the swing cylinder to make the overall cable lowering machine in a state with the smallest volume and the lowest center of gravity.

[0016] The invention provides an angle-adjustable anchor cable automatic cable laying machine and an anchor cable laying construction method, which have the following beneficial effects:

[0017] 1. After the anchor cable is inserted into the positioner and the lifter, the anchor cable is pushed into the anchor cable hole section by section through the periodic reciprocating linear motion of the lifter, thereby completing the upward installation of the anchor cable.

[0018] 2. By adjusting the angle of the guide column by the swing cylinder, the anchor cable can be installed obliquely upward or horizontally.

[0019] 3. The automatic anchor cable lowering machine has a simple and reliable structure, a large working range and swing amplitude, and can achieve a wide range of underground powerhouse arch anchor cable lifting and lowering in one working position. At the same time, it is fast to move and can realize flexible operation according to the progress of underground powerhouse work and the arrangement of working surface. If the working surface is temporarily requisitioned for other process operations, it can be quickly moved to avoid the idleness of personnel and equipment, with good economic benefits and no delay in construction period.

[0020] 4. The automatic cable lowering machine adopts hydraulic drive, which has sufficient power and fast propulsion speed, and can automatically lift the cable upward for installation, replacing the operation method of setting up construction racks in underground workshops or using mobile platforms to lower the cable, greatly reducing the number of front-line workers, avoiding high-altitude operations and cross operations, and having a high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0024] Figure 3 is a schematic diagram of the structure of the lifting assembly;

[0025] Figure 4 It is a schematic diagram of the structure of the propulsion assembly;

[0026] Figure 5 This is the installation diagram of the positioner;

[0027] Figure 6 This is a schematic diagram of the installation of the lift;

[0028] Figure 7 This is an exploded schematic diagram of the locator;

[0029] Figure 8 This is a schematic diagram of the explosion of the lifter;

[0030] Fig. 9 It is the principle diagram of the hydraulic system of the present invention;

[0031] In the figure: base 1, guide column 2, steering support 3, swing beam 4, lifting support beam 5, lifting cylinder 6, swing cylinder 7, propulsion track 8, fixed seat 9, sliding seat 10, propulsion cylinder 11, clamping cylinder 12, clamping seat 13, connecting plate 14, bulletproof mechanism 15, top plate beam 16, guide slider 17, hydraulic distribution assembly 18, control and power cabinet 19, concave rail 201, articulated seat 1501, limit seat 1502, bulletproof strip 1503, limit pin 1504. DETAILED DESCRIPTION

[0032] like Figures 1 to 8 As shown, an angle-adjustable anchor cable automatic lowering machine includes a lifting assembly and a propulsion assembly. The lifting assembly includes a base 1, and the base 1 supports the entire device. When in specific use, a universal wheel can be set at the bottom of the base 1 to facilitate the transfer of the equipment.

[0033] The lower ends of the two groups of guide columns 2 are rotatably connected to the steering support 3 on the base 1 through a pin shaft. A swing beam 4 and a lifting beam 5 are provided between the two groups of guide columns 2. The swing beam 4 is arranged on one side of the guide column 2, and can be fixedly connected by bolts, without affecting the up and down movement of the lifting beam 5. The lifting beam 5 moves along the concave track 201 inside the guide column 2, and the end of the lifting beam 5 is clamped in the concave track 201. One end of the lifting cylinder 6 is hinged to the base 1, and the other end is hinged to the lifting beam 5. An inclined driving mechanism is provided between the swing beam 4 and the base 1 to adjust the angle of the guide column 2. The driving mechanism is a swing cylinder 7. One end of the swing cylinder 7 is hinged to the base 1, and the other end is hinged to the swing beam 4. The guide column 2 is driven by the swing cylinder 7 to swing left and right.

[0034] The lifting support beam 5 is provided with a propulsion assembly for propulsing the anchor cable, so as to realize the lifting and propulsion work of the anchor cable upward. The propulsion assembly includes a propulsion track 8, a positioner is provided at the upper end of the propulsion track 8, and a lifter is provided at the lower end. The positioner is mounted on a fixed seat 9 and fixedly connected. The lifter is fixed on a sliding seat 10, and the sliding seat 10 moves along the propulsion track 8. A propulsion cylinder 11 is provided between the fixed seat 9 and the sliding seat 10. The two ends of the propulsion cylinder 11 are respectively hinged to the back of the fixed seat 9 and the sliding seat 10. The positioner and the lifter both include two groups of clamping cylinders 12. The telescopic ends of the two groups of clamping cylinders 12 are provided with clamping seats 13 for clamping the anchor cable. The two groups of clamping cylinders 12 move toward each other, so as to realize the movement of the clamping seats 13 toward each other or away from each other, so as to facilitate the clamping of the anchor cable.

[0035] Preferably, a connecting plate 14 is provided at the lower end of the propulsion track 8, and the connecting plate 14 is connected to the lifting support beam 5 by bolts.

[0036] A top plate beam 16 is provided at the upper end of the guide column 2, and a guide slider 17 for limiting the propulsion track 8 is provided on the top plate beam 16. The guide slider 17 is fixedly connected to the top plate beam 16 by bolts. The guide slider 17 adopts a rail clamping structure to be buckled on the edge of the propulsion track 8 to limit the propulsion track 8 and ensure that the propulsion track 8 runs smoothly and safely.

[0037] Preferably, a bulletproof mechanism 15 is provided between the two groups of clamping cylinders 12, and the bulletproof mechanism 15 includes a hinge seat 1501 and a limit seat 1502 respectively arranged on the outside of the two groups of clamping cylinders 12, one end of the bulletproof strip 1503 is hinged to the hinge seat 1501, and the other end is inserted between the two groups of ear plates of the limit seat 1502 and fixed by a limit pin 1504, and the end of the bulletproof strip 1503 is provided with a through hole that cooperates with the limit pin 1504, and the limit pin 1504 is inserted into the through holes of the ear plate and the bulletproof strip 1503 at the same time.

[0038] The anchor cable is limited by the bulletproof strip 1503 to prevent the anchor cable from popping out of the positioner or lifter when the clamping cylinder 12 of the positioner or lifter loosens the fixation on the anchor cable, thereby affecting the re-clamping of the anchor cable by the clamping cylinder 12 of the positioner or lifter.

[0039] like Fig. 9 As shown, it includes control and power components, including a control and power cabinet 19 that provides power and operates the entire system, and a hydraulic distribution assembly 18 that ensures that each cylinder performs a specified action according to instructions. The control and power cabinet integrates a hydraulic pump station, a control module, and a display module, and the power and control cabinet and the hydraulic distribution assembly are flexibly connected through a bus.

[0040] The control and power cabinet 19 has 6 groups of control buttons embedded in the cabinet door, which correspond to the lifting cylinder 6, the swing cylinder 7, the propulsion cylinder 11, the clamping cylinder 12 of the positioner, the clamping cylinder 12 of the lifter, and the start and stop of the hydraulic pump. There is an emergency stop button on the cabinet door. In case of an emergency, quickly press this emergency stop button to stop the entire oil circuit. After eliminating the danger and hidden dangers, restart it. A 12-inch touch screen is embedded in the cabinet door, which displays the system voltage, current, hydraulic pressure, flow, temperature, hydraulic oil level, and environmental humidity signals in real time; it is also connected to the control PLC module to display the fault code, and the automatic operation program code can also be entered to realize the automatic action of the anchor cable cycle advancement step, improve the working efficiency of the cable lowering machine, and eliminate the risk of personnel misoperation.

[0041] The hydraulic distribution assembly 18 is arranged on the guide column 2, and the hydraulic distribution assembly 18 is connected to the lifting cylinder 6, the swing cylinder 7, the driving components of the propulsion component, namely the clamping cylinder 12 and the propulsion cylinder 11, and the control and power cabinet 19 through pipelines.

[0042] The control and power components realize the power output and control of the cable lowering machine. Through force calculation and hydraulic design, the hydraulic pressure of the cable lowering machine is 10MPa, the oil cylinder is 50 / 28, and the motor is 5kW to meet the needs. The oil cylinder has four single piston rod cylinders, one two-stage telescopic cylinder, and the hydraulic distribution assembly is 18. According to the pre-set function of the cable lowering machine, the hydraulic valve and PLC module are designed by a professional hydraulic manufacturer. All safety components in the cable lowering machine structure are standard parts and installed at the pre-set positions of the cable lowering machine.

[0043] The working principle of the present invention is that after the machine is in place, the anchor cable is passed through the positioner and the lifter, and the anchor cable is pushed into the anchor cable hole section by section through the up and down periodic reciprocating linear motion of the lifter, thereby completing the upward installation of the anchor cable. Similarly, the installation of the anchor cable in an oblique upward or horizontal direction can also be achieved.

[0044] An anchor cable laying construction method comprises the following steps:

[0045] Step 1: Lift into place: move the base 1 to the construction position. After the test is normal, operate the lifting cylinder 6 to lower the lifting beam 5 to the low position, the clamping cylinder 12 of the positioner and the lifter operates, and the two sets of clamping seats 13 are separated. The anchor cable is placed between the clamping seats 13 of the positioner and the lifter. The clamping cylinder 12 of the positioner and the lifter retracts to clamp the anchor cable, rotate the bulletproof strip 1503 along the hinged seat 1501, and clamp the other end of the bulletproof strip 1503 between the two sets of ear plates of the limit seat 1502, and fix it with the limit pin 1504 to perform bulletproof limiting on the anchor cable.

[0046] The lifting cylinder 6 is extended, the lifting joist 5 is raised, the propulsion assembly and the anchor cable are lifted upward as a whole, the swing cylinder 7 is started, the angle of the propulsion assembly is adjusted, and the end of the anchor cable is aligned with the anchor cable hole.

[0047] Step 2, cyclic advancement: the clamping cylinder 12 of the positioner moves back and loosens the clamping of the anchor cable. At this time, the bulletproof strip 1503 can prevent the anchor cable from popping out of the positioner. The advancement cylinder 11 moves upward, driving the lifter to move upward along the advancement track 8, driving the anchor cable to move upward synchronously. After the advancement cylinder 11 reaches the specified stroke, the clamping cylinder 12 of the positioner extends, driving the clamping seat 13 to clamp and fix the anchor cable. The clamping cylinder 12 of the lifter moves back and loosens the clamping of the anchor cable. The advancement cylinder 11 moves downward, driving the sliding seat 10 to move downward to the initial position. The clamping cylinder 12 of the lifter moves forward, driving the clamping seat 13 to clamp and fix the anchor cable. Thus, the installation of the anchor cable 4 of one stroke is completed. Repeat the above steps to push the anchor cable into the anchor cable hole section by section.

[0048] Step 3, depressurize and finish the work: After the installation of the anchor cable 4 is completed, the cylinders of the lifter and positioner and the propulsion cylinder 11 are depressurized first, and then the lifting cylinder 6 begins to depressurize, driving the lifting support beam 5 to drop downward to the lowest position, and finally adjust the angle of the swing cylinder 7 to make the overall cable lowering machine in a state of minimum volume and lowest center of gravity.

[0049] After the pressure relief is completed, the control and power cabinet 19 is closed, and after checking again, the bus is disconnected, and the connection between the control and power cabinet 19 and the hydraulic distribution assembly 18 is disconnected. At this time, according to the subsequent work task arrangement, the cable machine can be moved to the next working surface to start the anchor cable installation work.

Claims

1. An anchor cable construction method, characterized in that: An angle-adjustable anchor cable automatic cable lowering machine is used for anchor cable lowering construction, comprising a lifting assembly and a propulsion assembly, wherein the lifting assembly comprises a base (1), two groups of guide columns (2) are arranged on the base (1), a lifting support beam (5) is arranged between the two groups of guide columns (2), the lifting support beam (5) moves along a concave track (201) on the inner side of the guide column (2), a lifting cylinder (6) has one end hinged to the base (1), and the other end hinged to the lifting support beam (5), and a lifting support beam (5) is arranged on the lifting support beam (5). There is a propulsion assembly for propelling the anchor cable, the lower end of the guide column (2) is rotatably connected to the steering support (3) on the base (1) through a pin shaft, a swing beam (4) is provided between the two groups of guide columns (2), and an inclined driving mechanism is provided between the swing beam (4) and the base (1) to adjust the angle of the guide column (2), and the driving mechanism is a swing cylinder (7), one end of the swing cylinder (7) is hinged to the base (1), and the other end is hinged to the swing beam (4); The propulsion assembly comprises a propulsion track (8), a positioner is provided at the upper end of the propulsion track (8), and a lifter is provided at the lower end. The positioner is mounted on a fixed seat (9), and the lifter is fixed on a sliding seat (10). The sliding seat (10) moves along the propulsion track (8). A propulsion cylinder (11) is provided between the fixed seat (9) and the sliding seat (10). The positioner and the lifter each comprise two sets of clamping cylinders (12). The telescopic ends of the two sets of clamping cylinders (12) are provided with clamping seats (13) for clamping the anchor cable. A connecting plate (14) is provided at the lower end of the propulsion track (8). The connecting plate (14) is connected to the connecting plate (11). The two groups of clamping cylinders (12) are connected with a lifting support beam (5), a bulletproof mechanism (15) is provided between the two groups of clamping cylinders (12), the bulletproof mechanism (15) comprises an articulated seat (1501) and a limit seat (1502) respectively arranged on the two groups of clamping cylinders (12), one end of the bulletproof strip (1503) is hinged to the articulated seat (1501), and the other end is inserted between the two groups of ear plates of the limit seat (1502) and fixed by a limit pin (1504), the upper end of the guide column (2) is provided with a top plate beam (16), and the top plate beam (16) is provided with a guide slider (17) for limiting the propulsion track (8); The control and power assembly comprises a hydraulic distribution assembly (18) arranged on a guide column (2), the hydraulic distribution assembly (18) being connected to a lifting cylinder (6), a swing cylinder (7), a driving assembly of a propulsion assembly and a control and power cabinet (19) through pipelines; The anchor cable construction method includes the following steps: Step 1: Lifting into place: Move the base (1) to the construction position. After the test is normal, operate the lifting cylinder (6) to lower the lifting beam (5) to the low position. The clamping cylinder (12) of the positioner and the lifter is operated to place the anchor cable between the clamping seat (13) of the positioner and the lifter. The clamping cylinder (12) of the positioner and the lifter is retracted to clamp the anchor cable. The lifting cylinder (6) is extended to raise the lifting beam (5). The propulsion assembly and the anchor cable are lifted upward as a whole. The swing cylinder (7) is started to adjust the angle of the propulsion assembly so that the end of the anchor cable is aligned with the anchor cable hole. Step 2, cyclic advancement: the clamping cylinder (12) of the positioner moves back and releases the clamping of the anchor cable, the advancement cylinder (11) moves upward, drives the lifter to move upward along the advancement track (8), and drives the anchor cable to move upward synchronously. After the advancement cylinder (11) reaches the specified stroke, the clamping cylinder (12) of the positioner extends, drives the clamping seat (13) to clamp and fix the anchor cable, the clamping cylinder (12) of the lifter moves back and releases the clamping of the anchor cable, the advancement cylinder (11) moves downward, drives the sliding seat (10) to move downward to the initial position, the clamping cylinder (12) of the lifter moves forward, drives the clamping seat (13) to clamp and fix the anchor cable, and thus completes the installation of the anchor cable for one stroke. Repeat this step to push the anchor cable into the anchor cable hole in sections. Step 3: Depressurize and finish the work: After the anchor cable is installed, the oil cylinders of the lifter and the positioner and the propulsion cylinder (11) are depressurized first, and then the lifting cylinder (6) starts to depressurize, driving the lifting support beam (5) to descend to the lowest position. Finally, the angle of the swing cylinder (7) is adjusted to make the cable lowering machine as a whole in a state with the smallest volume and the lowest center of gravity.

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