Anchor cable suspension circulating traction system of long-range tunnel anchor

Abstract

The utility model aims to provide a long-range tunnel anchor cable suspension circulating traction system. The long-range tunnel anchor cable suspension circulating traction system comprises a winch I, a winch II, a winch III, a shackle and a lifting hook, the winch I and the winch II are installed on the ground and close to a tunnel anchoring ground inlet, and the tunnel anchoring ground inlet is provided with a roller guide wheel through a support. A fixed pulley I is arranged on the upper portion of the front anchor face of the tunnel anchor, a circulating steel wire rope arranged on a winch I is wound around the fixed pulley I, and a shackle is fixedly arranged on the circulating steel wire rope. A steel wire rope I arranged on the winch II extends downwards after being turned by a shackle, and a lifting hook is arranged at the tail end of the steel wire rope I and used for hooking the front part or the middle part of the multi-strand anchor cable; a cable spreading disc is arranged in a cable spreading saddle of the tunnel anchor, and multiple strands of anchor cables are wound on the cable spreading disc; the winch III is arranged on the rear side of the cable spreading disc in the cable spreading saddle, and the tail end of a steel wire rope II arranged on the winch III is connected with the connecting piece. According to the structure, the problem of hoisting and transporting multiple strands of finished anchor cables in a long-range tunnel anchor can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge equipment technical field, concretely relates to a long-range tunnel anchor cable suspension circulating traction system. BACKGROUND

[0002] Due to the anticorrosion, replaceability and other advantages of the multi-strand finished anchor cable, the anchoring system of the anchor of the suspension bridge is currently applied on a large scale, and basically replaces the original grouting anchoring system of the steel strand. However, due to the limited space of the tunnel anchor, hoisting and transportation are difficult, and it is extremely difficult to install and transport in the tunnel anchor, and the weight of the multi-strand anchor reaches about 500 to 1000 kg, which is beyond human power. Especially, hoisting and transportation of the multi-strand finished anchor cable in the long-range tunnel anchor are more difficult, and a safe, reliable and efficient system is urgently needed to solve this problem. SUMMARY

[0003] The utility model aims at providing a long-range tunnel anchor cable suspension circulating traction system, which has a scientific structure design, is simple to operate, and can solve the hoisting and transportation problem of the multi-strand finished anchor cable in the long-range tunnel anchor.

[0004] The long-range tunnel anchor cable suspension circulating traction system comprises a winch I, a winch II, a winch III, a guide buckle and a lifting hook.

[0005] The winch I and the winch II are respectively installed on the ground, close to the ground entrance of the tunnel anchor, and a drum guide pulley is arranged at the ground entrance of the tunnel anchor through a support;

[0006] The upper part of the front anchor surface of the tunnel anchor is provided with a fixed pulley I, a circulating steel wire rope arranged on the winch I is wound on the fixed pulley I, and a guide buckle is fixedly arranged on the circulating steel wire rope;

[0007] The steel wire rope I arranged on the winch II extends downward after changing direction through the guide buckle, and a lifting hook is arranged at the tail end of the steel wire rope I, the lifting hook is used for hooking the front part or the middle part of the multi-strand anchor cable;

[0008] An anchor cable unwinding disc is arranged on the entrance platform of the tunnel anchor, and the multi-strand anchor cable in the form of a disc is placed on the anchor cable unwinding disc;

[0009] The winch III is arranged on the rear side of the anchor cable unwinding disc in the anchor cable unwinding saddle, the tail end of the steel wire rope II arranged on the winch III is connected with a connecting piece, and the connecting piece is used for fixedly connecting with the tail end of the multi-strand anchor cable.

[0010] The winch I is a double-cylinder winch.

[0011] The winch II and the winch III are both single-cylinder winches.

[0012] The guiding buckle comprises a buckle body, a sliding ring and a direction-changing wheel, the buckle body is fixedly installed on the lower steel wire of the circulating steel wire rope, the sliding ring is sleeved on the upper steel wire of the circulating steel wire rope and can slide relative to the steel wire, and the direction-changing wheel is installed on the lower end of the buckle body, and the steel wire I on the winch II extends downward after changing direction through the direction-changing wheel.

[0013] The axial direction of the spreader is vertical.

[0014] The guiding wheel II is arranged on the platform through a pulley frame and is located in front of the winch III, and the steel wire II is fixedly connected with the tail ends of the multiple anchor ropes through the connecting piece after passing through the guiding wheel II.

[0015] The connecting piece comprises a connecting sleeve, a conical clamping piece, a steel strand, a connecting head, an extruded steel sleeve and a pressure bearing.

[0016] The tail end of the connecting sleeve is provided with a connecting ear hole, and the connecting ear hole is used for being connected with the steel wire of the winch III.

[0017] The connecting sleeve is provided with a channel along the axial direction of the connecting sleeve, the channel is sequentially provided with a steel strand channel I and a conical inner groove from back to front, the bottom surface of the inner groove is connected with the steel strand channel I, the conical clamping piece is arranged in the inner groove, the tail end of the steel strand is arranged at the rear end of the steel strand channel I, the front part of the steel strand is arranged to pass out from the front end of the conical inner groove, and the conical clamping piece is sleeved on the steel strand.

[0018] The connecting head is provided with a channel along the axial direction of the connecting head, the channel is sequentially provided with a steel strand channel II and a connecting head inner hole from back to front, the diameter of the steel strand channel II is greater than the diameter of the steel strand, the pressure bearing and the extruded steel sleeve are sequentially arranged in the connecting head inner hole from back to front, the front part of the steel strand passes through the steel strand channel II, passes through the pressure bearing and enters the front end of the connecting head inner hole, the extruded steel sleeve is provided with an extruded spring, the extruded spring is sleeved on the front end of the steel strand, and the outer diameters of the pressure bearing and the extruded steel sleeve are slightly smaller than the diameter of the connecting head inner hole and greater than the diameter of the steel strand channel II.

[0019] The outer side wall of the front end of the connecting head is provided with external threads, the external threads are screwed with the internal threads of the tail ends of the multiple anchor ropes to form rigid connection.

[0020] The rear part of the connecting sleeve is provided with a screw hole, and a countersunk screw is screwed into the screw hole to lock the tail end of the steel strand in the steel strand channel I.

[0021] The working process of the utility model is as follows:

[0022] The winch I drives the guide buckle to move through the circulating steel wire rope, the drum guide pulley and the fixed pulley I, thereby pulling the multiple anchor cables to move down into the front anchor surface, and the multiple anchor cables rotate on the cable spreading disc to complete the cable spreading work, so that the anchor cables are not twisted, the winch II pulls the multiple anchor cables to move up and down through the steel wire rope II, the fixed pulley II and the lifting hook, when the multiple anchor cables rotate to the last half circle, the winch III controls the descending speed of the finished anchor cable through the steel wire rope II, the connecting assembly and the tail end of the multiple anchor cables, and the above steps can be repeated multiple times until the multiple anchor cables reach the designed installation position.

[0023] The utility model has the advantages that:

[0024] The utility model discloses a scientific and reasonable structure design, convenient operation in the working process, can satisfy the multiple anchor transportation cable installation under the condition of tunnel anchor space limitation, guarantee the smooth construction of the anchoring system of the suspension bridge anchor, better solve the transportation difficult cable installation problem of prior art, and have good application prospect.

[0025] The utility model discloses a unique connecting piece, which is fixedly connected based on the connecting head and non-fixedly connected to the connecting sleeve, realizes the transition from rigidity to flexibility, ensures that the cable body does not rotate through the free rotation of the pressure bearing, avoids the rotation of the steel wire rope after unloading, and avoids the reverse rotation of the screw thread at the front end of the connecting head during traction, thereby preventing accidents. The clamping piece in the connecting sleeve realizes the quick disassembly and assembly of the whole structure. The on-site application effect is very good, and there is no situation of falling off and wire strangulation. The connecting piece is used for on-site traction 1694 times, and there is no situation of falling off and wire strangulation. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a structure diagram of a long-range tunnel anchor cable suspension circulating traction system of example 1.

[0027] Figure 2 It is a structure diagram of a buckle of example 1.

[0028] Figure 3 It is a structure diagram of a connecting piece of example 1.

[0029] The numbers and names in the drawings are as follows:

[0030] 1 - winch I, 2 - winch II, 3 - winch III, 4 - guide buckle, 5 - lifting hook, 6 - fixed pulley I, 7 - circulating wire rope, 8 - wire rope I, 9 - multi-strand anchor cable, 10 - platform, 11 - cable unwinding reel, 12 - connecting piece, 13 - buckle body, 14 - sliding ring, 15 - direction changing wheel, 16 - front anchor surface, 17 - connecting sleeve, 18 - conical clamping piece, 19 - steel strand, 20 - connecting head, 21 - extruded steel sleeve, 22 - pressure bearing, 23 - connecting lug hole, 24 - steel strand channel I, 25 - inner groove, 26 - countersunk screw, 27 - steel strand channel II, 28 - connecting head inner hole, 29 - external thread, 30 - wire rope II. DETAILED DESCRIPTION

[0031] The utility model will be specified below in combination with the drawings and examples. Example 1

[0032] As Figure 1 and 2 Indicated, the long-range tunnel anchor anchor cable suspension circulating traction system includes winch I 1, winch II 2, winch III 3, guide buckle 4, lifting hook 5;The winch I 1 is double-cylinder winch. The winch II 2, winch III 3 are all single-cylinder winch.

[0033] The winch I 1, winch II 2 are installed on the ground respectively, close to the tunnel anchor ground entrance, and the tunnel anchor ground entrance is provided with a drum guide pulley through a support;

[0034] The upper portion of the front anchor surface 16 of the tunnel anchor is provided with a fixed pulley I 6, and a circulating wire rope 7 provided on the winch I 1 is wound on the fixed pulley I 6, and the guide buckle 4 is fixedly arranged on the circulating wire rope 7;

[0035] The wire rope I 8 provided on the winch II 2 extends downward after changing direction through the guide buckle 4, and a lifting hook 5 is arranged at the tail end of the wire rope I 8, and the lifting hook 5 is used to hook the front part or the middle part of the multi-strand anchor cable 9;

[0036] The tunnel anchor entrance platform 10 is provided with a cable unwinding reel 11, and the multi-strand anchor cable 9 is wound and placed on the cable unwinding reel 11 in a disc shape. The axial direction of the cable unwinding reel 11 is vertical.

[0037] The winch III 3 is arranged on the rear side of the cable unwinding reel 11 on the platform 10, the tail end of the wire rope II 30 provided on the winch III 3 is connected with the connecting piece 12, and the connecting piece 12 is used to be fixedly connected with the tail end of the multi-strand anchor cable 9.

[0038] The unguided buckle 4 comprises a buckle body 13, a sliding ring 14 and a direction-changing wheel 15. The buckle body 13 is fixedly installed on the lower steel wire of the circulating steel wire rope 7. The sliding ring 14 is sleeved on the upper steel wire of the circulating steel wire rope 7 and can slide relative to the steel wire. The direction-changing wheel 15 is installed on the lower end of the buckle body 13. The steel wire I 8 on the winch II 2 extends downward after changing direction by the direction-changing wheel 15.

[0039] The guiding wheel II is arranged on the platform 10 through a pulley frame on the front side of the winch III 3. The steel wire II 30 is fixedly connected with the tail end of the multi-strand anchor cable 9 through the connecting piece 12 after passing through the guiding wheel II.

[0040] The connecting piece 12 comprises a connecting sleeve 17, a conical clamping piece 18, a steel strand 19, a connecting head 20, an extruded steel sleeve 21 and a pressure bearing 22.

[0041] The tail end of the connecting sleeve 17 is provided with a connecting ear hole 23 which is used for connecting with the steel wire of the winch III 3.

[0042] The connecting sleeve 17 is provided with a channel along the axial direction thereof. The channel comprises a steel strand channel I 24 and a conical inner groove 25 from back to front. The bottom surface of the inner groove 25 is connected with the steel strand channel I 24. The conical clamping piece 18 is arranged in the inner groove 25. The tail end of the steel strand 19 is arranged in the rear end of the steel strand channel I 24. The front part of the steel strand 19 is arranged out of the front end of the conical inner groove 25. The conical clamping piece 18 is sleeved on the steel strand 19.

[0043] The connecting head 20 is provided with a channel along the axial direction thereof. The channel comprises a steel strand channel II 27 and a connecting head inner hole 28 from back to front. The diameter of the steel strand channel II 27 is greater than the diameter of the steel strand 19. The pressure bearing 22 and the extruded steel sleeve 21 are arranged in the connecting head inner hole 28 from back to front. The front part of the steel strand 19 is arranged out of the steel strand channel II 27, passes through the pressure bearing 22 and enters the front end of the connecting head inner hole 28. The extruded steel sleeve 21 is provided with an extruded spring which is sleeved on the front end of the steel strand 19 through the extruded spring. The outer diameter of the pressure bearing 22 and the extruded steel sleeve 21 is slightly smaller than the diameter of the connecting head inner hole 28 and greater than the diameter of the steel strand channel II 27.

[0044] The outer side wall of the front end of the connecting head 20 is provided with an external thread 29. The external thread 29 is screwed with the internal thread of the tail end of the multi-strand anchor cable 9 to form a rigid connection.

[0045] The rear part of the connecting sleeve 17 is provided with a screw hole. A countersunk screw 26 is screwed into the screw hole to lock the tail end of the steel strand 19 in the steel strand channel I 24.

Claims

1. A long-range tunnel anchor cable suspension loop traction system, comprising a winch I (1), a winch II (2), a winch III (3), a guide buckle (4), a lifting hook (5); characterized in that: the winch I (1) and the winch II (2) are respectively installed on the ground, close to the ground entrance of the tunnel anchor, and a drum guide pulley is arranged at the ground entrance of the tunnel anchor through a support; the upper part of the front anchor surface (16) of the tunnel anchor is provided with a fixed pulley I (6), a loop wire (7) arranged on the winch I (1) is wound on the fixed pulley I (6), and the loop wire (7) is fixedly provided with the guide buckle (4); the steel wire I (8) arranged on the winch II (2) extends downward after changing direction through the guide buckle (4), and a lifting hook (5) is arranged at the tail end of the steel wire I (8), the lifting hook (5) is used for hooking the front part or the middle part of the plurality of anchor cables (9); a cable spreading disc (11) is placed on the platform (10) below the tunnel anchor entrance, and a plurality of disc-shaped anchor cables (9) are placed on the cable spreading disc (11); the winch III (3) is arranged on the rear side of the cable spreading disc (11) on the platform (10), the tail end of the steel wire II (30) arranged on the winch III (3) is connected with a connecting piece (12), and the connecting piece (12) is used for fixedly connecting with the tail end of the plurality of anchor cables (9). The winch I (1) is a double-cylinder winch.

2. The long span tunnel anchor cable suspension loop hauling system of claim 1, wherein: The winch II (2) and the winch III (3) are single-cylinder winches.

3. The long span tunnel anchor cable suspension loop traction system of claim 1, wherein:

4. The long-range tunnel anchor cable suspension loop traction system according to claim 1, characterized in that: the guide buckle (4) comprises a buckle body (13), a sliding ring (14) and a direction changing wheel (15), the buckle body (13) is fixedly installed on the lower steel wire of the loop wire (7), the sliding ring (14) is sleeved on the upper steel wire of the loop wire (7) and can slide relative to the steel wire, and the direction changing wheel (15) is installed on the lower end of the buckle body (13), and the steel wire I (8) on the winch II (2) extends downward after changing direction through the direction changing wheel (15). The axial direction of the cable spreading disc (11) is a vertical direction.

5. The long span tunnel anchor cable suspension loop traction system of claim 1, wherein: A guide wheel II is arranged on the front side of the winch III (3) on the platform (10) through a pulley frame, and the steel wire II (30) is fixedly connected with the tail end of the plurality of anchor cables (9) through the connecting piece (12) after passing through the guide wheel II.

6. The long span tunnel anchor cable suspension loop traction system of claim 1, wherein: The connecting piece (12) comprises a connecting sleeve (17), a conical clamping piece (18), a steel strand (19), a connecting head (20), an extruded steel sleeve (21) and a pressure bearing (22); 7. The long span tunnel anchor cable suspension loop traction system of claim 1, wherein: the tail part of the connecting sleeve (17) is provided with a connecting ear hole (23), and the connecting ear hole (23) is used for connecting with the steel wire of the winch III (3). ​ The connecting sleeve (17) is provided with a channel along its axial direction, the channel is sequentially steel strand channel I (24) and conical inner groove (25) from back to front, the bottom surface of the inner groove (25) is connected with the steel strand channel I (24); The conical clamping piece (18) is arranged in the inner groove (25); The tail end of the steel strand (19) is arranged in the rear end of the steel strand channel I (24), the front part of the steel strand (19) is arranged out of the front end of the conical inner groove (25), and the conical clamping piece (18) is sleeved on the steel strand (19); The connecting head (20) is provided with a channel along its axial direction, the channel is sequentially steel strand channel II (27) and connecting head inner hole (28) from back to front, the diameter of the steel strand channel II (27) is greater than the diameter of the steel strand (19); The connecting head inner hole (28) is sequentially provided with a pressure bearing (22) and an extrusion steel sleeve (21) from back to front; The front part of the steel strand (19) is arranged out of the steel strand channel II (27), passes through the pressure bearing (22) and enters the front end of the connecting head inner hole (28); The extrusion steel sleeve (21) is provided with an extrusion spring, and the extrusion spring is fixed on the front end of the steel strand (19); The outer diameter of the pressure bearing (22) and the extrusion steel sleeve (21) is slightly smaller than the diameter of the connecting head inner hole (28) and greater than the diameter of the steel strand channel II (27); The front end of the connecting head (20) is provided with an external thread (29), and the external thread (29) is screwed with the internal thread of the tail end of the multi-strand anchor cable (9) to form a rigid connection.

8. The long span tunnel anchor cable suspension loop traction system of claim 7, wherein: The rear part of the connecting sleeve (17) is provided with a screw hole, and a countersunk screw (26) is screwed into the screw hole to lock the tail part of the steel strand (19) in the steel strand channel I (24).

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