Multi-strand anchor cable mounting trolley

Abstract

The utility model discloses a multi-strand anchor cable mounting trolley, and belongs to the field of engineering machinery. The multi-strand anchor cable mounting trolley comprises a chassis, a main arm and an auxiliary arm, a working platform and a cable feeding device are mounted at the tail end of the main arm, and the cable feeding device is used for continuously conveying anchor cables to anchor holes; a traction mechanism is installed at the tail end of the auxiliary arm and used for lifting and conveying the anchor cable to the cable conveying device and lifting the middle of the anchor cable to be in a suspended state in the cable conveying process, and therefore the anchor cable is continuously conveyed to the cable conveying device. The traction mechanism is arranged on the auxiliary arm, the middle of the anchor cable can be kept in a suspended state all the time in the cable feeding process, friction resistance between the anchor cable and the ground is reduced, and the cable feeding action is smoother; in addition, the traction mechanism is used for replacing manual work to deliver the anchor cable to the cable feeding device, and the anchor cable installation efficiency can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a multi-strand anchor cable installation trolley. Background Art

[0002] In underground chambers and high slopes of hydropower stations, multiple prestressed anchor cables are usually arranged to enhance the stability of surrounding rocks. The traditional cable feeding method uses manual cooperation with hoists, winches or cranes to feed the cables, which has many disadvantages such as a large number of construction workers, high labor intensity, low operation efficiency and poor safety. Mechanized construction is the fundamental way to solve this problem. For example, a cable feeding device for anchor cables with the Chinese patent application number CN202223008885.9 discloses that two cable grippers, one in front and one behind, are used to achieve continuous feeding of the anchor cables, and then install the anchor cables.

[0003] However, the above-mentioned prior art is limited to the research of single components such as anchor cable installation devices, and does not analyze and consider from the perspective of the entire equipment for anchor cable installation. Therefore, there are at least the following technical problems: in the case of anchor cable installation in underground chambers and high slopes, the length of the anchor cable is usually between ten meters and dozens of meters, and the weight of the anchor cable itself is large. During the process of installing the anchor cable head, multiple construction workers are required to lift it, and then complete the clamping and fixing of the anchor cable head; moreover, during the above-mentioned anchor cable feeding process, the tail of the anchor cable drags on the ground, bringing great frictional resistance to the front-end cable feeding action, resulting in slow cable feeding speed and low construction efficiency.

[0004] In view of this, a new technical solution is needed to solve the above technical problems. Summary of the Utility Model

[0005] In order to solve the problems existing in the prior art, the utility model provides a multi-strand anchor cable installation trolley and an anchor cable installation method, which can achieve the purpose of smoother cable feeding operation, reducing manual labor and improving construction efficiency.

[0006] To achieve the above purpose, the first aspect of the utility model provides a multi-strand anchor cable installation trolley, which includes a chassis, a main arm and an auxiliary arm installed on the chassis; a working platform and a cable feeding device are installed at the end of the main arm, and the cable feeding device is used for continuously feeding the anchor cable into the anchor hole; the auxiliary arm cooperates with the main arm, and a traction mechanism is installed at the end of the auxiliary arm, and the traction mechanism is used to lift the anchor cable to the cable feeding device; the traction mechanism is also used to lift the middle part of the anchor cable to a suspended state during the cable feeding process, and continuously deliver the anchor cable to the cable feeding device.

[0007] As a further improvement, the cable feeding device includes a carriage, a propulsion beam, a fixed clamping mechanism, a sliding clamping mechanism and a cable feeding drive mechanism; the fixed clamping mechanism includes a fixed seat and a first clamping jaw, and the fixed seat is fixedly connected to the front end of the propulsion beam; the sliding clamping mechanism includes a movable seat and a second clamping jaw, and the movable seat is slidably mounted on the propulsion beam; the cable feeding drive mechanism is connected to the sliding clamping mechanism and is used to drive the sliding clamping mechanism to move back and forth.

[0008] As a further improvement, a guiding tube is provided at the front end and / or the rear end of the fixed clamping mechanism; a guiding tube is provided at the front end and / or the rear end of the sliding clamping mechanism; when feeding the cable, the cable anchor is threaded through the guiding tube.

[0009] As a further improvement, the guiding tubes are all provided with flared openings.

[0010] As a further improvement, the guiding tube includes an upper half guiding tube and a lower half guiding tube connected together by a hinge; after assembly, the upper half guiding tube and the lower half guiding tube are locked by a pin shaft.

[0011] As a further improvement, a first guiding wheel set is provided between the fixed clamping mechanism and the sliding clamping mechanism, and a second guiding wheel set is provided behind the sliding clamping mechanism;

[0012] Both the first guiding wheel set and the second guiding wheel set include a wheel frame and two half guiding wheels, and the two half guiding wheels are arranged vertically opposite to each other; when feeding the cable, the cable anchor is threaded between the upper and lower half guiding wheels.

[0013] As a further improvement, the wheel frame includes an upper wheel frame and a lower wheel frame connected together by a hinge; the two half guiding wheels are respectively mounted on the upper wheel frame and the lower wheel frame; after assembly, the upper wheel frame and the lower wheel frame are locked by a pin shaft.

[0014] As a further improvement, both the first guiding wheel set and the second guiding wheel set include two vertical half guiding wheels, and the two vertical half guiding wheels are arranged horizontally opposite to each other; when feeding the cable, the cable anchor is threaded between the upper, lower, left and right four half guiding wheels.

[0015] As a further improvement, both the first guiding wheel set and the second guiding wheel set are provided with sliding wheel seats, and the sliding wheel seats are slidably connected to the propulsion beam; a synchronous linkage mechanism is provided among the first guiding wheel set, the second guiding wheel set and the sliding clamping mechanism.

[0016] As a further improvement, a third guiding wheel set is fixedly provided at the rear end of the carriage, and the third guiding wheel set is inclined backward and downward.

[0017] As a further improvement, the traction mechanism includes a hoisting bracket, at least two fourth guide wheel sets are arranged below the hoisting bracket, and a winch is arranged at one end of the hoisting bracket; when feeding the cable, the anchor cable is clamped and passed through the middle of the fourth guide wheel sets, and the winch is used to tow the anchor cable.

[0018] As a further improvement, the hoisting bracket is connected to the end of the auxiliary arm through a swivel disc.

[0019] As a further improvement, the chassis includes a wheeled chassis and a crawler chassis.

[0020] The second aspect of the present utility model provides a method for installing an anchor cable using the multi-strand anchor cable installation trolley as described above, which includes the following steps:

[0021] The winch on the auxiliary arm lifts the head of the anchor cable and hoists it onto the cable feeding device for clamping and fixing.

[0022] The auxiliary arm lifts the middle part of the anchor cable, and the anchor cable between the lifting point and the clamping position of the cable feeding device on the main arm will hang down in a V shape. The auxiliary arm is lifted to make the bottom of the V-shaped anchor cable leave the ground.

[0023] The cable feeding device installs the anchor cable.

[0024] The winch on the auxiliary arm lifts the anchor cable from the ground, and according to the cable loading speed, the steel wire rope towes the anchor cable to deliver the cable to the cable feeding device.

[0025] As a further improvement, the step of installing the anchor cable includes:

[0026] Release the fixed clamping mechanism, the sliding clamping mechanism clamps and drives the anchor cable to move forward to complete one cable feeding; then the fixed clamping mechanism clamps the anchor cable, the sliding clamping mechanism releases the anchor cable and retreats to the initial position to start the next cable feeding.

[0027] Compared with the prior art, the present utility model brings the following technical effects:

[0028] The multi-strand anchor cable installation trolley of the present utility model includes a main arm and an auxiliary arm. A cable feeding device is arranged on the main arm for continuously feeding the anchor cable into the anchor hole. The auxiliary arm is used to cooperate with the main arm, and a traction mechanism is arranged thereon for lifting the head of the anchor cable to the cable feeding device for clamping and fixing in the early stage of construction, which is safer and more efficient than manual operation; the traction mechanism is also used to lift the middle part of the anchor cable to a suspended state during the cable feeding process and continuously deliver the anchor cable to the cable feeding device. This setting can, on the one hand, reduce the huge friction generated by the contact between the anchor cable and the ground, thereby reducing the cable feeding resistance and making the cable feeding action smoother; on the other hand, with the cooperation of the traction mechanism, the anchor cable is continuously delivered to the cable feeding device, thus ensuring that the construction process is continuous without interruption and further improving the anchor cable installation efficiency. Description of the Drawings

[0029] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0030] Figure 1 The perspective view of the multi-strand cable anchor installation trolley showing a preferred embodiment of the present utility model;

[0031] Figure 2 Showing Figure 1 The partial perspective view of the installation trolley (mainly including the main arm);

[0032] Figure 3 Showing Figure 1 The perspective view of the working platform in ;

[0033] Figure 4 Showing Figure 1 The perspective view of the cable feeding device in ;

[0034] Figure 5 Showing Figure 1 The structural diagram of the cable feeding device from another perspective in ;

[0035] Figure 6 Showing Figure 1 The perspective view of the first guide wheel group in (open state);

[0036] Figure 7 Showing Figure 1 The perspective view of the guide tube in (open state);

[0037] Figure 8 Showing Figure 1 The structural schematic diagram of the synchronous linkage mechanism in (some structural members are omitted);

[0038] Figure 9 The perspective view of the cable feeding robotic arm showing another preferred embodiment of the present utility model;

[0039] Figure 10 The state schematic diagram of the present utility model operating in the chamber;

[0040] Figure 11 Showing Figure 1 The perspective view of the auxiliary arm in ;

[0041] Figure 12 Showing Figure 11 The partial structural diagram of the auxiliary arm in.

[0042] Main element symbol description:

[0043] Chassis - 1; Support leg - 101;

[0044] Main boom - 2; First slewing base - 201; First telescopic boom - 202; First jib - 203; First pitching oil cylinder - 204; Four - link structure - 205;

[0045] Working platform - 300; Main platform - 301; Extended platform - 302;

[0046] Cable feeding device - 400; Sled - 401; Pushing beam - 402; Fixed clamping mechanism - 403; Sliding clamping mechanism - 404; Fixed seat - 406; First jaw - 407; Movable seat - 408; Second jaw - 409; Pushing oil cylinder - 410; Guide tube - 411; First guide wheel set - 412; Second guide wheel set - 413; Wheel frame - 414; Semi - guide wheel - 415; Sliding wheel seat - 416; First movable pulley - 417; Second movable pulley - 418; First steel wire rope - 419; Second steel wire rope - 420; Third guide wheel set - 421; Mounting seat - 431; Hydraulic motor - 432;

[0047] Auxiliary boom - 5; Second slewing base - 501; Second telescopic boom - 502; Second jib - 503; Slewing disc - 506;

[0048] Traction mechanism - 600; Lifting support - 601; Fourth guide wheel set - 602; Winch - 603; Steel wire rope - 604;

[0049] Anchor cable - 90. Detailed implementation manners

[0050] Next, the technical solutions of the present utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0051] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present utility model are described in detail below, and the examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end.

[0052] Embodiment

[0053] Please refer to Figure 1, this embodiment discloses a multi-strand cable installation trolley, which includes a chassis 1, a main arm 2 and an auxiliary arm 5 installed on the chassis 1; a working platform 300 and a cable feeding device 400 are installed at the end of the main arm 2. The working platform 300 is for personnel to stand on, and the cable feeding device 400 is used to continuously feed the cable into the anchor hole; the auxiliary arm 5 cooperates with the main arm 2, and a traction mechanism 600 is installed at the end of the auxiliary arm 5. The traction mechanism 600 is used to lift the head of the cable 90 to the cable feeding device 400 at the initial stage of cable feeding, so that the cable feeding device 400 can clamp and fix the cable 90; the traction mechanism 600 is also used to lift the middle part of the cable 90 to a suspended state during the cable feeding process, and continuously deliver the cable 90 to the cable feeding device 400, thereby ensuring that the cable feeding action is continuous without interruption.

[0054] The utility model designs from the overall trolley, and an auxiliary arm 5 is provided for the main arm 2. The auxiliary arm 5 can provide auxiliary functions both at the initial stage and during the cable feeding process, so as to achieve the purpose of smoother cable feeding operation, reducing manual labor and improving construction efficiency.

[0055] Please refer to Figures 4 - 7 , in this embodiment, the cable feeding device 400 includes a sliding frame 401, a propulsion beam 402, a fixed clamping mechanism 403, a sliding clamping mechanism 404 and a cable feeding drive mechanism.

[0056] Specifically, the propulsion beam 402 is composed of two parallel strip plates. Guide rail structures are arranged on the outer sides of the strip plates, and the cross-section of the guide rail is triangular. The propulsion beam 402 is integrally fixed on the sliding frame 401. Of course, the propulsion beam 402 and the sliding frame 401 can also be made into an integral structure.

[0057] The fixed clamping mechanism 403 includes a fixed seat 406 and a first jaw 407. The fixed seat 406 is fixedly connected to the front end of the propulsion beam 402. The first jaw 407 includes two cable clamping blocks that are oppositely arranged and can open and close. The opposite surfaces of the two cable clamping blocks are set in a shape matching the cross-section of the cable 90, so as to be kept in conformity when clamping the cable 90.

[0058] The sliding clamping mechanism 404 includes a movable seat 408 and a second jaw 409. The movable seat 408 is slidably installed on the propulsion beam 402. Specifically, a chute matching the guide rail structure of the propulsion beam 402 is provided at the bottom of the movable seat 408, and the chute is clamped with the guide rail, so as to install the movable seat 408 on the propulsion beam 402. The cable feeding drive mechanism is fixed on the propulsion beam 402 and is connected to the sliding clamping mechanism 404 at the same time. The cable feeding drive mechanism is used to drive the sliding clamping mechanism 404 to move back and forth. There are various technologies that can be used as the cable feeding drive mechanism. For example, the simplest one is to use a propulsion oil cylinder 410 as the drive. The cylinder block of the oil cylinder is connected to the propulsion beam 402, and the movable rod of the oil cylinder is connected to the sliding clamping mechanism 404, so as to realize the back-and-forth drive of the sliding clamping mechanism 404.

[0059] The structure of the second gripper 409 is the same as that of the first gripper 407, and it also includes two cable clamping blocks that are oppositely arranged and can open and close. The opposite surfaces of the two cable clamping blocks are set to match the cross-sectional shape of the cable anchor 90, so as to maintain a good fit when clamping the cable anchor 90.

[0060] The working principle of the cable feeding device 400 is as follows: the first gripper 407 of the fixed clamping mechanism 403 releases the cable anchor 90, the second gripper 409 of the sliding clamping mechanism clamps the cable anchor 90, and the cable feeding drive mechanism is activated to drive the sliding clamping mechanism 404 to slide forward. During this process, the second gripper 409 drives the cable anchor 90 to be fed forward by a certain distance; thereafter, the first gripper 407 of the fixed clamping mechanism 403 clamps the cable anchor 90, the second gripper 409 of the sliding clamping mechanism 404 releases the cable anchor 90, and the cable feeding drive mechanism acts in the reverse direction to drive the sliding clamping mechanism 404 to retract backward to the initial position; repeating the above actions to complete the feeding of the entire cable anchor 90.

[0061] Specifically, in this embodiment, a guiding tube 411 is provided at the rear end of the fixed clamping mechanism 403, and guiding tubes 411 are respectively provided at the front end and the rear end of the sliding clamping mechanism 404. When feeding the cable, the cable anchor 90 is threaded through these guiding tubes 411. The guiding tubes 411 can limit the position of the cable anchor 90 to always be consistent with the cable feeding direction, thus making the cable feeding action smoother. Of course, in some other embodiments, the number and position of the guiding tubes 411 can also be flexibly adjusted according to the situation. For example, a guiding tube 411 can also be provided at the front end of the fixed clamping mechanism 403, or a guiding tube 411 can be provided at one end of the sliding clamping mechanism 404, which is also acceptable.

[0062] Preferably, the guiding tubes 411 are all provided with flared mouths. The reason for setting the flared mouths is that there is a support frame at every certain length of the multi-strand cable anchor 90, and the support frame protrudes from the outer surface of the cable anchor 90. When entering the guiding tube 411, the support frame will get stuck at the tube orifice, causing an obstacle to the cable feeding. The setting of the flared mouth can play a guiding role, enabling the support frame to smoothly pass through the tube orifice and enter the guiding tube 411.

[0063] Specifically, in this embodiment, each guide tube 411 includes an upper guide tube and a lower guide tube connected together by a hinge; after assembly, the upper guide tube and the lower guide tube are locked by a pin shaft to form a complete guide tube 411. This setting is to facilitate the clamping and fixing of the anchor cable 90: if the guide tube 411 is a complete integrated structure, when clamping the anchor cable 90, the anchor cable 90 needs to be passed through the guide tube 411; and if the guide tube 411 is set as a structure with two halves hinged and openable, before clamping the anchor cable 90, the upper guide tube can be opened first, and after the anchor cable 90 is installed, the upper guide tube can be closed and then locked, thereby completing the clamping and fixing of the anchor cable 90 - this operation is much simpler and more convenient than threading the anchor cable 90.

[0064] As a further improvement, a first guide wheel group 412 is provided between the fixed clamping mechanism 403 and the sliding clamping mechanism 404, and a second guide wheel group 413 is provided behind the sliding clamping mechanism 404; the first guide wheel group 412 and the second guide wheel group 413 have the same structure, but the installation positions are different. The structure is described below by taking the first guide wheel group 412 as an example. The first guide wheel group 412 includes a wheel frame 414 and two semi-guide wheels 415. The two semi-guide wheels 415 are arranged opposite to each other up and down, and the two are arranged in parallel. The middle position is for the anchor cable 90 to pass through. Specifically in this embodiment, the wheel frame 414 includes an upper wheel frame and a lower wheel frame connected together by a hinge. The two semi-guide wheels 415 are respectively installed on the upper wheel frame and the lower wheel frame. After assembly, the upper wheel frame and the lower wheel frame are locked by a pin shaft to form a complete wheel frame 414. When feeding the cable, the anchor cable 90 is passed (or passed) between the upper and lower semi-guide wheels 415. The purpose of setting the wheel frame 414 to be hinged with two parts is also to facilitate the clamping and fixing of the anchor cable 90: that is, before clamping, the upper wheel frame is opened, the anchor cable 90 is placed in, and then the upper wheel frame is closed and locked. Otherwise, the anchor cable 90 needs to be clamped by passing through the wheel frame 414, which increases the difficulty of operation.

[0065] When the anchor cable 90 moves on the carriage 401, it will bend and sag due to its own weight, thereby generating friction resistance between the carriage 401 and the carriage 401, which is not conducive to the cable feeding. The guide wheel set is fixedly arranged at the corresponding position of the carriage 401, which can support the anchor cable 90 and prevent it from sagging, and can also guide the sliding, so that the cable feeding process is smoother.

[0066] Furthermore, the first guide wheel group 412 and the second guide wheel group 413 each include two vertical semi-guide wheels 415, which are arranged opposite to each other on the left and right and are located on one side of the wheel frame 414; when sending the cable, the anchor cable 90 is passed through the four semi-guide wheels 415 on the upper, lower, left and right sides, thereby guiding and sliding the anchor cable 90 from multiple directions, further ensuring the smoothness of the cable sending process.

[0067] In this embodiment, the first guide wheel group 412 and the second guide wheel group 413 are both provided with a sliding wheel seat 416, and the sliding wheel seat 416 can be connected to the propulsion beam 402 by sliding back and forth. The sliding connection relationship between the sliding wheel seat 416 and the propulsion beam 402 can refer to the movable seat 408 of the sliding clamping mechanism 404. In addition, a synchronous linkage component is provided between the first guide wheel group 412, the second guide wheel group 413 and the sliding clamping mechanism 404. Therefore, in the process of the sliding clamping mechanism 404 driving the anchor cable 90 to be transported forward, the first guide wheel group 412 and the second guide wheel group 413 respectively support and guide the anchor cable 90 from the front and rear of the sliding clamping mechanism 404, which can further ensure the smoothness of the cable feeding process.

[0068] See also Figure 8 Specifically, the synchronous linkage assembly includes a first movable pulley 417, a second movable pulley 418, a first steel wire rope 419, a second steel wire rope 420 and the above-mentioned propulsion cylinder 410. The first movable pulley 417 is fixedly mounted on the first guide wheel group 412. The first steel wire rope 419 passes around the first movable pulley 417, and its two ends are respectively connected to the propulsion beam 402 and the sliding clamping mechanism 404; the second movable pulley 418 is fixedly mounted on the second guide wheel group 413, the second steel wire rope 420 passes around the second movable pulley 418, and its two ends are respectively connected to the propulsion beam 402 and the sliding clamping mechanism 404; the cylinder body of the propulsion cylinder 410 is fixed on the propulsion beam 402, and the movable rod of the propulsion cylinder 410 is connected to the first guide wheel group 412. The propulsion beam 402, the first steel wire rope 419, the sliding clamping mechanism 404, and the second steel wire rope 420 form a ring with a fixed circumference.

[0069] The action principle and process of the synchronous linkage component are as follows:

[0070] The propulsion cylinder 410 extends forward, driving the first guide wheel group 412 to move forward, and due to the action of the first steel wire rope 419, the sliding clamping mechanism 404 is driven to move forward; at the same time, since the circumference of the ring formed by the propulsion beam 402, the first steel wire rope 419, the sliding clamping mechanism 404, and the second steel wire rope 420 remains unchanged, the sliding clamping mechanism 404 will actually drive the second guide wheel group 413 to move forward, and the speed of the second guide wheel group 413 moving forward is the same as the speed of the first guide wheel group 412, while the speed of the sliding clamping mechanism 404 moving forward is twice that of the first guide wheel group 412. When the sliding clamping mechanism 404 moves to abut against the first guide wheel group 412, the propulsion cylinder 410 stops moving forward. At this time, the cable feeding device 400 completes the action of conveying a section of the anchor cable 90 forward.

[0071] After that, the propulsion oil cylinder 410 contracts backward, driving the first guide wheel set 412 to retract backward. Due to the action of the first steel wire rope 419, the sliding clamping mechanism 404 is driven to retract backward. At the same time, since the circumferential length of the loop formed by the propulsion beam 402, the first steel wire rope 419, the sliding clamping mechanism 404, and the second steel wire rope 420 remains unchanged, the sliding clamping mechanism 404 will actually drive the second guide wheel set 413 to retract backward. Moreover, the backward retraction speed of the second guide wheel set 413 is the same as that of the first guide wheel set 412, while the backward retraction speed of the sliding clamping mechanism 404 is twice that of the first guide wheel set 412. When the sliding clamping mechanism 404 moves to abut against the second guide wheel set 413, the propulsion oil cylinder 410 stops contracting backward. At this time, the cable feeding device 400 completes the reset action.

[0072] With the action of this synchronous linkage mechanism, the forward and backward retraction speeds of the sliding clamping mechanism 404 can be twice that of the propulsion oil cylinder 410, thereby significantly improving the cable feeding speed and construction efficiency.

[0073] In this embodiment, a third guide wheel set 421 is fixedly provided at the rear end of the carriage 401, and the third guide wheel set 421 is inclined backward and downward. The third guide wheel set 421 is located at the bent part of the cable 90. The method of setting it to be inclined backward and downward is to adapt to and relieve the bending degree of the cable 90, preventing the huge resistance caused by the sudden bending of the cable 90 here, thereby further ensuring the smoothness of the cable feeding process.

[0074] Please refer to Figure 10 、 Figure 11 , specifically in this embodiment, the traction guiding device 600 includes a hoisting bracket 601. Three fourth guide wheel sets 602 are provided below the hoisting bracket 601, and the three fourth guide wheel sets 602 are evenly distributed below the hoisting bracket 601. A winch 603 is provided at one end of the hoisting bracket 601. The structure of the fourth guide wheel set 602 is similar to the structure of the guide wheel set in the above text. The fourth guide wheel set 602 includes a wheel frame and two semi-guide wheels (not marked in the figure), and the two semi-guide wheels are both provided at the bottom of the wheel frame; when feeding the cable, the cable 90 passes above the two semi-guide wheels. Preferably, the fourth guide wheel set 602 is also provided with an openable and closable structure to facilitate clamping the cable 90. The fourth guide wheel set 602 further includes two vertical semi-guide wheels, and the two vertical semi-guide wheels are arranged opposite to each other left and right. When feeding the cable, the cable 90 is clamped and passes through the middle of the fourth guide wheel set 602, and the steel wire rope 604 of the winch 603 is connected to the tail of the cable 90. After the winch 603 is started, the cable 90 is lifted and continuously delivered towards the cable feeding device 400.

[0075] The working principle and function of this traction mechanism 600 are as follows:

[0076] 1. Assist in clamping and fixing the anchor cable 90 head

[0077] The main arm 2 is controlled to descend to a position close to the ground, the winch 603 of the auxiliary arm 5 lowers the wire rope 604, and hangs the head of the anchor cable 90. The winch 603 starts to lift the head of the anchor cable 90, and then the auxiliary arm 5 is controlled to move close to the main arm 2, and the head of the anchor cable 90 is lifted and sent to the cable feeding device 400. The head of the anchor cable 90 is clamped and fixed at the cable feeding device 400 in the manner described above.

[0078] 2. Auxiliary cable feeding process

[0079] The main arm 2 is controlled to move to a predetermined position so that the cable feeding device 400 is aligned with a certain anchor hole. The auxiliary arm 5 is lowered to a position close to the ground. With the assistance of manual labor, the middle part of the anchor cable 90 is clamped to the traction mechanism 600 of the auxiliary arm 5. At this time, the wire rope 604 of the winch 603 is connected to the tail of the anchor cable 90. The auxiliary arm 5 is controlled to rise and the middle part of the anchor cable 90 is lifted. The anchor cable 90 between the lifting point and the clamping position of the cable feeding device 400 of the main arm 2 will hang down in a V shape. The auxiliary arm 5 is lifted so that the bottom of the V-shaped anchor cable 90 is off the ground, which can reduce the friction between the anchor cable 90 and the ground, thereby facilitating the cable feeding device to feed the cable.

[0080] See also Figure 1 Specifically, in this embodiment, the chassis 1 adopts a wheeled chassis, which has stronger maneuverability and enables the trolley to be flexibly transferred at the construction site. Of course, in some other embodiments, the chassis 1 may also adopt a crawler chassis. As for which chassis 1 is specifically adopted, it can be determined according to the environment and conditions of the construction site.

[0081] In order to maintain the stability of the chassis 1, support legs 101 are further provided at the front and rear of the chassis 1. Specifically, two vertical support legs 101 are provided at the front of the chassis 1, located on both sides of the front; two inclined support legs 101 are provided at the rear of the chassis 1, located on both sides of the rear. Moreover, the two inclined support legs 101 are triangular in structure after being spread out, which has better stability. At the same time, the structural arrangement of the two inclined support legs 101 can also reduce space occupation. It is worth mentioning that the structure of the support leg 101 structure itself is an existing well-known technology, such as having telescopic function, folding function, etc., which will not be described in detail here.

[0082] See also Figure 1 , Figure 2, specifically in this embodiment, the main boom 2 further includes a first slewing base 201, a first telescopic boom 202 and a first forearm 203. The first slewing base 201 is horizontally rotatably mounted on the chassis 1 and has a triangular-shaped seat body that is inclined towards one side. The first telescopic boom 202 has multiple telescopic sections, such as a four-section structure in this embodiment. One end of the first telescopic boom 202 is hinged to the top of the first slewing base 201, and a first pitching oil cylinder 204 is provided between the first telescopic boom 202 and the first slewing base 201, so that the pitching angle of the first telescopic boom 202 can be adjusted. The front end of the first forearm 203 is used to connect to the working platform 300, and a leveling mechanism is provided between the rear end of the first forearm 203 and the front end of the first telescopic boom 202. Specifically, in one embodiment, the leveling mechanism adopts a four-bar linkage structure 205, which uses the prior art and can refer to the technology disclosed in Chinese Patent Application No. 202110896656.6. In addition, the first forearm 203 is swingably connected to the front end of the four-bar linkage structure 205 about a vertical axis. Therefore, the working platform 300 connected to the first forearm 203 can make a certain range of horizontal swing, thereby finely adjusting the position of the working platform 300.

[0083] Please refer to Figure 8 , in another embodiment, the first forearm 203 can also have a simpler leveling mechanism. For example, the rear end of the first forearm 203 is hinged to the front end of the first telescopic boom 202, and a leveling oil cylinder (not shown in the figure) is provided between the two. The leveling oil cylinder can drive the first forearm 203 to make up-and-down pitching movements, thereby adjusting the first forearm 203 to always be in a horizontal state. In this case, the working platform 300 is horizontally rotatably connected to the front end of the first forearm 203. The present invention does not particularly limit the boom structure of the main boom 2, as long as it can drive the working platform 300 and the cable feeding device 400 to move freely in the construction space.

[0084] Please refer to Figure 1 , Figure 2 , and Figure 3 , specifically in this embodiment, the cable feeding device 400 is connected to one side of the working platform 300. Specifically, the cable feeding device 400 further includes a mounting base 431 and a hydraulic motor 432. The mounting base 431 is fixedly connected to one side of the working platform 300, and the hydraulic motor 432 is horizontally connected between the mounting base 431 and the carriage 401. Therefore, under the action of the hydraulic motor 432, the carriage 401 and the entire cable feeding device 400 can rotate about a horizontal axis, so that the cable feeding device 400 can perform the operation of installing anchors in the anchor holes at different positions on the side walls and crown arches of the chamber (as Figure 9 shown).

[0085] Please refer to Figure 3, specifically in the embodiment, the working platform 300 includes a main platform 301 and two extension platforms 302. The two extension platforms 302 are provided on the lateral sides of the main platform 301 to extend the activity space of the main platform 301, so as to facilitate the construction workers to have a larger construction space.

[0086] Please refer to Figure 1 , Figure 10 , in this embodiment, the auxiliary arm 5 further includes a second slewing base 501, a second telescopic arm 502 and a second forearm 503. The second slewing base 501 is horizontally rotatably mounted on the chassis 1. The second slewing base 501 is adjacent to the first slewing base 201 and has a triangular-shaped seat body that is inclined towards one side. The second telescopic arm 502 has multiple telescopic sections, such as the four-section structure in this embodiment. One end of the second telescopic arm 502 is hinged to the top of the second slewing base 501, and a second pitching oil cylinder is provided between the second telescopic arm 502 and the second slewing base 501, so as to adjust the pitching angle of the second telescopic arm 502. The front end of the second forearm 503 is used to connect the traction mechanism 600, and a leveling mechanism is provided between the rear end of the second forearm 503 and the front end of the second telescopic arm 502. Specifically in this embodiment, the leveling mechanism adopts a relatively simple structure, that is, a leveling oil cylinder is provided between the second forearm 503 and the second telescopic arm 502, and the leveling oil cylinder is used to keep the front end of the second forearm 503 in a horizontal state all the time. The present utility model does not particularly limit the boom mechanism of the auxiliary arm 5, and any structure that can drive the traction mechanism 600 to move freely in the construction space is acceptable.

[0087] Specifically, the traction mechanism 600 is connected to the bottom of the second forearm 503 through a turntable 506. Therefore, the entire traction mechanism 600 can rotate under the drive of the turntable 506, and further the relative position relationship between the traction mechanism 600 and the cable feeding device 400 can be adjusted. When the relative position relationship between the two is adjusted to align the hoisting bracket 601 with the sliding carriage 401 in sequence, the cable feeding resistance is the smallest at this time and the cable feeding action is the smoothest.

[0088] This embodiment also discloses a method for installing the cable 90 by using the above multi-strand cable installation trolley, which includes the following steps:

[0089] S1. The winch 603 of the auxiliary arm 5 hoists the head of the cable 90 and hoists it to the cable feeding device on the main arm 2 for clamping and fixing.

[0090] That is, the steel wire rope 604 is connected to the head of the cable 90, and then the auxiliary arm 5 is controlled to move to a position close to the main arm 2. The head of the cable 90 is lifted to the vicinity of the cable feeding device, and then the head of the cable 90 is clamped and fixed.

[0091] S2. The auxiliary arm 5 lifts the middle part of the anchor cable 90. The anchor cable 90 between the lifting point and the clamping position of the cable feeding device 400 of the main arm 2 will hang down in a V shape. The auxiliary arm 5 is lifted so that the bottom of the V-shaped anchor cable 90 is off the ground.

[0092] In this step, the auxiliary arm 5 lifts the middle part of the anchor cable 90, which means that the middle part of the anchor cable 90 is clamped to the guide wheel group of the lifting bracket 601; the lifting point roughly refers to the center of gravity of the section of the anchor cable 90 clamped to the lifting bracket 601.

[0093] S3. The cable feeding device of the main arm 2 installs the anchor cable 90.

[0094] That is, the cable feeding and installation steps are implemented in a step-by-step manner through the two anchor cable clamping mechanisms mentioned above: the fixed clamping mechanism 403 is loosened, and the sliding clamping mechanism 404 is clamped to drive the anchor cable 90 to move forward a preset distance to complete one cable feeding; then the fixed clamping mechanism 403 clamps the anchor cable 90, and the sliding clamping mechanism 404 loosens the anchor cable 90 and retreats to the initial position to start the next cable feeding.

[0095] S4. The winch 603 on the auxiliary arm 5 lifts the anchor cable 90 from the ground. According to the speed of the cable installation, the steel wire rope 604 pulls the anchor cable 90 to deliver the cable to the cable feeding device 400.

[0096] Every time the cable feeding device of the main arm 2 is transported forward a certain distance, the winch 603 of the auxiliary arm 5 pulls a section of the anchor cable 90 upward, thereby ensuring that the entire cable feeding action is continuous and uninterrupted.

[0097] As a further improvement, in order to make the cable feeding action smoother, the overall posture of the traction mechanism 600 is also adjusted, specifically, the angle of the turntable 506 is controlled so that the lifting bracket 601 is kept aligned with the slide 401.

[0098] In summary, the utility model brings the following technical effects:

[0099] The multi-strand cable installation trolley of the present utility model includes a main arm 2 and an auxiliary arm 5. A cable feeding device 400 is provided on the main arm 2 for continuously feeding a cable 90 into an anchor hole. The auxiliary arm 5 is used to cooperate with the main arm 2, and a traction mechanism 600 is provided thereon for lifting the head of the cable 90 to the cable feeding device 400 for clamping and fixing in the early stage of construction, which is safer and more efficient than manual operation. The traction mechanism 600 is also used to lift the middle part of the cable 90 to a suspended state during the cable feeding process and continuously deliver the cable 90 to the cable feeding device 400. This setting can, on the one hand, reduce the huge friction generated by the contact between the cable 90 and the ground, thereby reducing the cable feeding resistance and making the cable feeding action smoother; on the other hand, with the cooperation of the traction mechanism 600, the cable 90 is continuously delivered to the cable feeding device 400, thus ensuring the continuity of the construction process without interruption and further improving the installation efficiency of the cable 90. By adjusting the relative position relationship between the lifting bracket 601 and the sliding bracket 401, the smoothness of the cable feeding action can be further improved.

[0100] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the creation of the present utility model.

Claims

1. A multi-strand anchor cable installation trolley, characterized in that: It includes a chassis and a main arm and an auxiliary arm installed on the chassis; a working platform and a cable feeding device are installed at the end of the main arm, and the cable feeding device is used to continuously feed the anchor cable to the anchor hole; the auxiliary arm cooperates with the main arm, and a traction mechanism is installed at the end of the auxiliary arm, and the traction mechanism is used to lift the anchor cable to the cable feeding device; the traction mechanism is also used to lift the middle part of the anchor cable to a suspended state during the cable feeding process, and continuously deliver the anchor cable to the cable feeding device.

2. The multi-strand anchor cable installation trolley according to claim 1, characterized in that: The cable feeding device includes a slide, a propulsion beam, a fixed clamping mechanism, a sliding clamping mechanism and a cable feeding drive mechanism; the fixed clamping mechanism includes a fixed seat and a first clamping jaw, and the fixed seat is fixedly connected to the front end of the propulsion beam; the sliding clamping mechanism includes a movable seat and a second clamping jaw, and the movable seat can be slidably installed on the propulsion beam; the cable feeding drive mechanism is connected to the sliding clamping mechanism and is used to drive the sliding clamping mechanism to move back and forth.

3. The multi-strand anchor cable installation trolley according to claim 2, characterized in that: A guide tube is provided at the front end and / or rear end of the fixed clamping mechanism; a guide tube is provided at the front end and / or rear end of the sliding clamping mechanism; when the cable is fed, the anchor cable is passed through the guide tube.

4. The multi-strand anchor cable installation trolley according to claim 3, characterized in that: The guide pipes are all provided with bell mouths.

5. The multi-strand anchor cable installation trolley according to claim 3, characterized in that: The guide tube comprises an upper guide tube and a lower guide tube connected together by a hinge; after assembly, the upper guide tube and the lower guide tube are locked by a pin shaft.

6. The multi-strand anchor cable installation trolley according to any one of claims 2 to 5, characterized in that: A first guide wheel group is provided between the fixed clamping mechanism and the sliding clamping mechanism, and a second guide wheel group is provided behind the sliding clamping mechanism; The first guide wheel group and the second guide wheel group both include a wheel frame and two semi-guide wheels, and the two semi-guide wheels are arranged opposite to each other up and down; when the cable is sent, the anchor cable is passed between the upper and lower semi-guide wheels.

7. The multi-strand anchor cable installation trolley according to claim 6, characterized in that: The wheel frame comprises an upper wheel frame and a lower wheel frame connected together by a hinge; the two semi-guide wheels are respectively mounted on the upper wheel frame and the lower wheel frame; after assembly, the upper wheel frame and the lower wheel frame are locked by a pin shaft.

8. The multi-strand anchor cable installation trolley according to claim 6, characterized in that: The first guide wheel group and the second guide wheel group each include two vertical semi-guide wheels, and the two vertical semi-guide wheels are arranged opposite to each other on the left and right. When the cable is sent, the anchor cable is passed between the four semi-guide wheels on the upper, lower, left and right sides.

9. The multi-strand anchor cable installation trolley according to claim 6, characterized in that: The first guide wheel group and the second guide wheel group are both provided with a sliding wheel seat, and the sliding wheel seat can be slidably connected to the propulsion beam back and forth; A synchronous linkage mechanism is arranged among the first guide wheel group, the second guide wheel group and the sliding clamping mechanism.

10. The multi-strand anchor cable installation trolley according to claim 6, characterized in that: A third guide wheel set is fixedly provided at the rear end of the slide, and the third guide wheel set is tilted rearward and downward.

11. The multi-strand anchor cable installation trolley according to claim 1, characterized in that: The traction mechanism includes a lifting bracket, at least two fourth guide wheel groups are arranged below the lifting bracket, and a winch is arranged at one end of the lifting bracket; when feeding the cable, the anchor cable is clamped and passed through the middle of the fourth guide wheel group, and the winch is used to pull the anchor cable.

12. The multi-strand anchor cable installation trolley according to claim 11, characterized in that: The hanging bracket is connected to the end of the auxiliary arm through a rotating disk.

13. The multi-strand anchor cable installation trolley according to claim 1, characterized in that: The chassis includes a wheeled chassis and a tracked chassis.

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