A main cable tightening machine for main cable strand erection construction and its usage method

Abstract

The present invention belongs to the technical field of bridge construction, and in particular relates to a main cable tightening machine for the erection construction of main cable strands, including two guiding cables. A pulley is slidably sleeved outside each of the two guiding cables. Connecting ropes are fixedly connected to the lower side walls of the two pulleys. The lower ends of the two connecting ropes are fixedly connected to the same cross bar. A fastening frame is fixedly connected to the rod wall in the middle of the cross bar. The fastening frame has a hexagonal structure. A plurality of jacks are fixedly connected to the side wall of the fastening frame. The output end of the jack is fixedly connected to a pressing plate. Two track rings are fixedly connected to the rear side wall of the fastening frame. Sliding sleeves are sleeved on the outer walls of the two track rings. The side walls of the two sliding sleeves are fixedly connected to the same support plate. The present invention can enable the steel strip to be evenly wound on the surface of the main cable, without the need for operators to manually wind the steel strip, reducing the workload of the operators and ensuring the process progress of the main cable tightening.

Description

Technical Field

[0001] The present invention belongs to the technical field of bridge construction, and particularly relates to a main cable compacting machine for main cable strand erection construction and a using method thereof. Background Art

[0002] A self-anchored suspension bridge is a suspension bridge system that does not have a gravity-type ground anchor, but anchors the main cable at the end of the stiffening girder to bear the horizontal and vertical components of the main cable end. The construction of its cable system mainly includes: installation of the main cable saddle, installation of the cable dispersion saddle, construction of the main cable system, compacting of the main cable, construction of the suspension system, wire winding and painting, etc. In the process of implementing this application, the inventor found that there are at least the following problems in this technology. The main cable compacting is an important step in the erection of a self-anchored suspension bridge. The main cable compacting is generally divided into two parts: pre-compacting of the main cable and formal compacting of the main cable. The pre-compacting of the main cable is to pre-compact and fasten the hexagonal main cable through a steel strip, and then the formal compacting of the main cable is carried out by a compacting machine. The compacting machine mainly consists of a fastening device, a moving device, a hydraulic system, etc. The moving device moves the pressing body on the upper side of the compacting machine to the position where the main cable needs to be compacted, and then controls each fastening shoe to apply pressure synchronously through the hydraulic system to complete the compacting work of the main cable, so that the void ratio between the main cables meets the requirements. After the compacting is completed, the compacting machine is moved to the next compacting position through the moving device. In this process, after the main cable is compacted by using the main cable compacting machine, it is also necessary for the operator to tie the soft steel strip outside the compacted main cable and then fix it with a buckle. This operation requires personnel. Due to the relatively wide diameter of the main cable, the workload of the operator manually winding the soft steel strip is large, and it is not convenient to construct at a high place. Therefore, it will affect the working process of the main cable compacting.

[0003] Therefore, we propose a main cable compacting machine for main cable strand erection construction and a using method thereof to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a main cable compacting machine for main cable strand erection construction and a using method thereof for the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A main cable tightening machine for the erection construction of main cable strands includes two guiding cables. A pulley is sleeved outside each of the two guiding cables in a sliding manner. Connecting ropes are fixedly connected to the lower side walls of the two pulleys. The lower ends of the two connecting ropes are fixedly connected to the same cross bar. A fastening frame is fixedly connected to the rod wall in the middle of the cross bar. The fastening frame has a hexagonal structure. A plurality of jacks are fixedly connected to the side wall of the fastening frame. The output end of the jack is fixedly connected to a pressing plate. Two track rings are fixedly connected to the rear side wall of the fastening frame. A sliding sleeve is sleeved outside the outer wall of each of the two track rings. The side walls of the two sliding sleeves are fixedly connected to the same support plate. A first motor is fixedly connected to the side wall of the support plate. The output end of the first motor is fixedly connected to a driving gear. A toothed ring that is mutually matched with the driving gear is fixedly connected to the side wall of the fastening frame. An installation plate is fixedly connected to the lower side wall of the support plate. An installation shaft is rotatably connected to the side wall of the installation plate. A steel belt drum is sleeved outside the installation shaft. A steel belt is wound outside the steel belt drum. An insertion cylinder is fixedly connected to the right side wall of the steel belt drum. An insertion column is fixedly connected to the right end of the installation shaft. Two positioning grooves are opened in the inner wall of the insertion cylinder. A positioning plate is inserted into each of the two positioning grooves. A plurality of cogs are fixedly connected to the side wall of the positioning plate. A plurality of toothed rings that are mutually matched with the cogs are fixedly connected to the rod wall of the insertion column. A pull rod is fixedly connected to the side wall of the positioning plate. The side wall of the pull rod extending out of the positioning groove is fixedly connected to a pull plate. A spring is fixedly connected to the side walls on the opposite sides of the pull plate and the insertion cylinder.

[0006] In the above-mentioned main cable tightening machine for the erection construction of main cable strands, an installation frame is fixedly connected to the front side wall of the installation plate. The steel belt passes through the installation frame. An installation hole is opened in the lower side wall of the installation frame, and the inner wall of the installation hole is rotatably connected to a threaded cylinder through a bearing. The lower end of the threaded cylinder is fixedly connected to a first bevel gear through a bracket. A second motor is fixedly connected to the lower side wall of the installation frame. The output end of the second motor is fixedly connected to a second bevel gear that is mutually matched with the first bevel gear. A threaded rod is threadedly sleeved in the threaded cylinder. A cutting knife is fixedly connected to the upper end of the threaded rod. A knife groove that is mutually matched with the cutting knife is fixedly connected to the upper side inner wall of the installation frame.

[0007] In the above-mentioned main cable tightening machine for the erection construction of main cable strands, two limiting sliding rods are fixedly connected to the inner wall of the installation frame. A limiting sliding groove that is mutually matched with the limiting sliding rods is opened in the rod wall of the threaded rod.

[0008] In the above-mentioned main cable tightening machine for the erection construction of main cable strands, two guiding wheels are symmetrically and fixedly connected to the upper and lower side inner walls of the installation frame.

[0009] In the above-mentioned main cable tightening machine for the construction of the main cable strand, a pull ring is fixedly connected to the side wall of the pull plate, a pull rope is arranged outside the pull ring, a support frame is fixedly connected to the outer wall of the insert cylinder, and a rope hole matching the pull rope is opened on the side wall of the support frame, a reversing wheel is fixedly connected to the side wall of the support frame, and the right ends of the two pull ropes are fixedly connected to the same handle.

[0010] In the above-mentioned main cable tightening machine for main cable strand installation, the outer fixed sleeve of the installation shaft is provided with a connecting ring, the left side wall of the steel belt drum is fixedly connected to two positioning blocks, and the side wall of the connecting ring is provided with two grooves matching the positioning blocks.

[0011] In the above-mentioned main cable tightening machine for main cable strand installation, a plurality of universal balls are fixedly connected to the left side wall of the connecting ring.

[0012] A method for using a main cable tightening machine for main cable strand erection construction, the method using the main cable tightening machine for main cable strand erection construction, comprising the following steps:

[0013] S1. When the main cable tightening machine is first installed, it is done by a truck crane;

[0014] S2. The main cable tensioning machine is driven by the tower top winch;

[0015] S3, control the steel belt drum to rotate, wind the steel belt outside the steel belt drum around the main cable, then cut the steel belt and fix it;

[0016] S4. After the pre-tightening is completed, the hydraulic jack is unloaded, and the tightening shoe is returned by operating the reversing valve, and the cable tightening machine moves to the next tightening position.

[0017] Compared with the existing technology, the main cable tightening machine for main cable strand erection construction and the use method thereof have the following advantages:

[0018] By setting the track ring, sliding sleeve, support plate, first motor, driving gear, gear ring, mounting plate, mounting shaft, steel strip drum, inserting cylinder, inserting column, positioning plate, locking teeth, tooth ring, pull rod, pull plate, mounting frame, threaded cylinder, threaded rod, and cutting knife, after the main cable is tightened by the cable tightener, the first motor can be started. The first motor drives the support plate to rotate through the mutual cooperation of the driving gear and the gear ring. The support plate rotates on the surface of the cable tightener, and at the same time, the steel strip is pulled off from the outer wall of the steel strip drum and wound around the main cable. During the rotation of the support plate, the steel strip will be evenly wound around the outer wall of the main cable. Then, the second motor is started. The second motor drives the threaded cylinder to rotate through gear cooperation and drives the threaded rod and the cutting knife to move through thread cooperation. The cutting knife and the knife groove cooperate with each other to cut the steel strip, so that the steel strip can be evenly wound on the surface of the main cable, eliminating the need for operators to manually wind the steel strip, reducing the workload of the operators and ensuring the progress of the main cable tightening process. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a main cable tightener and its usage method for the erection construction of main cable strands provided by the present invention;

[0020] Figure 2 is a main cable tightener and its usage method for the erection construction of main cable strands provided by the present invention Figure 1 The enlarged schematic view of part A in;

[0021] Figure 3 is a schematic diagram of the positional relationship of the mounting shaft in a main cable tightener and its usage method for the erection construction of main cable strands provided by the present invention;

[0022] Figure 4 is a main cable tightener and its usage method for the erection construction of main cable strands provided by the present invention Figure 3 The enlarged schematic view of part B in.

[0023] In the figure: 1, track ring; 2, sliding sleeve; 3, support plate; 4, first motor; 5, driving gear; 6, gear ring; 7, mounting plate; 8, mounting shaft; 9, steel strip drum; 10, inserting cylinder; 11, inserting column; 12, positioning plate; 13, locking teeth; 14, tooth ring; 15, pull rod; 16, pull plate; 17, mounting frame; 18, threaded cylinder; 19, threaded rod; 20, cutting knife; 21, knife groove; 22, limiting slide bar; 23, limiting chute; 24, guide wheel; 25, pull ring; 26, pull rope; 27, support frame; 28, connecting ring; 29, positioning block; 30, universal ball. Detailed Description of the Invention

[0024] The following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

[0025] AsFigures 1-4 As shown in the figure, a main cable tightening machine for main cable strand erection construction includes two guiding cables. Pulley is sleeved outside each of the two guiding cables. Connecting ropes are fixedly connected to the lower side walls of the two pulleys. The lower ends of the two connecting ropes are fixedly connected to the same cross bar. A fastening frame is fixedly connected to the rod wall in the middle of the cross bar. The fastening frame is of hexagonal structure. A plurality of jacks are fixedly connected to the side walls of the fastening frame. The output ends of the jacks are fixedly connected to pressing plates. Two track rings 1 are fixedly connected to the rear side wall of the fastening frame. Slide sleeves 2 are sleeved outside the outer walls of the two track rings 1. The side walls of the two slide sleeves 2 are fixedly connected to the same support plate 3. A first motor 4 is fixedly connected to the side wall of the support plate 3. The output end of the first motor 4 is fixedly connected to a driving gear 5. A toothed ring 6 that is mutually matched with the driving gear 5 is fixedly connected to the side wall of the fastening frame. An installation plate 7 is fixedly connected to the lower side wall of the support plate 3. An installation shaft 8 is rotatably connected to the side wall of the installation plate 7. A steel belt drum 9 is sleeved outside the installation shaft 8. A steel belt is wound outside the steel belt drum 9. An insertion cylinder 10 is fixedly connected to the right side wall of the steel belt drum 9. An insertion post 11 is fixedly connected to the right end of the installation shaft 8. Two positioning grooves are formed in the inner wall of the insertion cylinder 10. Positioning plates 12 are inserted into the two positioning grooves. A plurality of cogs 13 are fixedly connected to the side walls of the positioning plates 12. A plurality of tooth rings 14 that are mutually matched with the cogs 13 are fixedly connected to the rod wall of the insertion post 11. A pull rod 15 is fixedly connected to the side wall of the positioning plate 12. A pull plate 16 is fixedly connected to the side wall of the pull rod 15 extending out of the positioning groove. A same spring is fixedly connected to the opposite side walls of the pull plate 16 and the insertion cylinder 10.

[0026] An installation frame 17 is fixedly connected to the front side wall of the installation plate 7. The steel belt passes through the installation frame 17. An installation hole is formed in the lower side wall of the installation frame 17 and the inner wall of the installation hole is rotatably connected to a threaded cylinder 18 through a bearing. The lower end of the threaded cylinder 18 is fixedly connected to a first bevel gear through a bracket. A second motor is fixedly connected to the lower side wall of the installation frame 17. The output end of the second motor is fixedly connected to a second bevel gear that is mutually matched with the first bevel gear. A threaded rod 19 is threadedly sleeved in the threaded cylinder 18. The upper end of the threaded rod 19 is fixedly connected to a cutter 20. A cutter groove 21 that is mutually matched with the cutter 20 is fixedly connected to the upper side inner wall of the installation frame 17. It is not necessary for an operator to manually cut the steel belt, which improves the convenience of the operator's work.

[0027] Two limiting slide bars 22 are fixedly connected to the inner wall of the installation frame 17. A limiting slide groove 23 that is mutually matched with the limiting slide bars 22 is formed in the rod wall of the threaded rod 19. Through the mutual cooperation of the limiting slide bars 22 and the limiting slide groove 23, the threaded rod 19 can only move up and down.

[0028] Two guiding wheels 24 are symmetrically and fixedly connected to the upper and lower side inner walls of the installation frame 17 respectively, which improves the convenience of the movement of the steel belt.

[0029] A pull ring 25 is fixedly connected to the side wall of the pull plate 16, and a pull rope 26 is arranged outside the pull ring 25. A support frame 27 is fixedly connected to the outer wall of the insertion tube 10, and a rope hole matching the pull rope 26 is opened on the side wall of the support frame 27. A reversing wheel is fixedly connected to the side wall of the support frame 27, and the right ends of the two pull ropes 26 are fixedly connected to the same handle for convenient pulling of the two pull rings 25.

[0030] The outer fixed sleeve of the mounting shaft 8 is provided with a connecting ring 28, and the left side wall of the steel belt drum 9 is fixedly connected with two positioning blocks 29. The side wall of the connecting ring 28 is provided with two grooves matching the positioning blocks 29, which can enable the steel belt drum 9 and the connecting ring 28 to rotate synchronously.

[0031] A plurality of universal balls 30 are fixedly connected to the left side wall of the connecting ring 28 , which greatly improves the convenience of movement of the connecting ring 28 .

[0032] A method for using a main cable tightening machine for main cable strand erection construction, the method using the main cable tightening machine for main cable strand erection construction, comprising the following steps:

[0033] S1. When the main cable tightening machine is first installed, it is done by a truck crane;

[0034] S2. The main cable tensioning machine is driven by the tower top winch;

[0035] S3, controlling the steel belt drum 9 to rotate, winding the steel belt outside the steel belt drum 9 around the main cable, and then cutting and fixing the steel belt;

[0036] S4. After the pre-tightening is completed, the hydraulic jack is unloaded, and the tightening shoe is returned by operating the reversing valve, and the cable tightening machine moves to the next tightening position.

[0037] The operating principle of the present invention is described as follows: by arranging the track ring, the sliding sleeve, the support plate, the first motor, the driving gear, the gear ring, the mounting plate, the mounting shaft, the steel belt drum, the insertion drum, the insertion column, the positioning plate, the clamping teeth, the gear ring, the pull rod, the pull plate, the mounting frame, the threaded drum, the threaded rod and the cutter, after the main cable is tightened by the cable tightening machine, the first motor is started to work, and the first motor drives the support plate to rotate through the cooperation of the driving gear and the gear ring, and the support plate rotates on the surface of the cable tightening machine, and at the same time, the steel belt is torn off the outer wall of the steel belt drum and wrapped around the main The second motor is started, and the second motor drives the threaded barrel to rotate through the gear cooperation, and drives the threaded rod and the cutter to move through the thread cooperation, and utilizes the mutual cooperation of the cutter and the knife groove to drive the steel belt to be cut, so that the steel belt can be evenly wound on the surface of the main cable, and the operator does not need to manually wind the steel belt, which reduces the operator's workload and ensures the progress of the main cable tightening process, and does not need the operator to manually cut the steel belt, which improves the convenience of the operator's work.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A main cable tightening machine for main cable strand erection construction, comprising two guiding cables, characterized in that, Two of the guiding cables are externally sleeved with pulleys in a sliding manner. Connecting ropes are fixedly connected to the lower side walls of both pulleys. The lower ends of the two connecting ropes are fixedly connected to the same cross bar. A fastening frame is fixedly connected to the rod wall in the middle of the cross bar. The fastening frame is of a hexagonal structure. A plurality of jacks are fixedly connected to the side walls of the fastening frame. The output ends of the jacks are fixedly connected to pressing plates. Two track rings (1) are fixedly connected to the rear side wall of the fastening frame. Sliding sleeves (2) are sleeved on the outer walls of both track rings (1). The side walls of the two sliding sleeves (2) are fixedly connected to the same support plate (3). A first motor (4) is fixedly connected to the side wall of the support plate (3). The output end of the first motor (4) is fixedly connected to a driving gear (5). A gear ring (6) that is mutually matched with the driving gear (5) is fixedly connected to the side wall of the fastening frame. A mounting plate (7) is fixedly connected to the lower side wall of the support plate (3). A mounting shaft (8) is rotatably connected to the side wall of the mounting plate (7). A steel belt drum (9) is sleeved on the mounting shaft (8). A steel belt is wound around the steel belt drum (9). A socket cylinder (10) is fixedly connected to the right side wall of the steel belt drum (9). A plug post (11) is fixedly connected to the right end of the mounting shaft (8). Two positioning grooves are formed in the inner wall of the socket cylinder (10). Positioning plates (12) are inserted into both positioning grooves. A plurality of cogs (13) are fixedly connected to the side wall of each positioning plate (12). A plurality of gear rings (14) that are mutually matched with the cogs (13) are fixedly connected to the rod wall of the plug post (11). A pull rod (15) is fixedly connected to the side wall of the positioning plate (12). A pull plate (16) is fixedly connected to the side wall of the pull rod (15) extending out of the positioning groove. A same spring is fixedly connected to the opposite side walls of the pull plate (16) and the socket cylinder (10).

2. The main cable tightening machine for erection construction of main cable strands according to claim 1, characterized in that, A mounting frame (17) is fixedly connected to the front side wall of the mounting plate (7). The steel belt passes through the mounting frame (17). A mounting hole is formed in the lower side wall of the mounting frame (17), and a threaded cylinder (18) is rotatably connected to the inner wall of the mounting hole through a bearing. A first bevel gear is fixedly connected to the lower end of the threaded cylinder (18) through a bracket. A second motor is fixedly connected to the lower side wall of the mounting frame (17). The output end of the second motor is fixedly connected to a second bevel gear that is mutually matched with the first bevel gear. A threaded rod (19) is threadedly sleeved in the threaded cylinder (18). A cutter (20) is fixedly connected to the upper end of the threaded rod (19). A knife groove (21) that is mutually matched with the cutter (20) is fixedly connected to the upper side inner wall of the mounting frame (17).

3. The main cable compacting machine for the erection construction of the main cable wire strands according to claim 2, characterized in that, Two limiting slide bars (22) are fixedly connected to the inner wall of the mounting frame (17). A limiting slide groove (23) that is mutually matched with the limiting slide bars (22) is formed in the rod wall of the threaded rod (19).

4. The main cable compacting machine for the erection construction of the main cable wire strands according to claim 2, characterized in that, Two guiding wheels (24) are symmetrically and fixedly connected to the upper and lower side inner walls of the mounting frame (17).

5. A main cable compacting machine for the erection construction of a main cable wire strand according to claim 1, characterized in that, A pull ring (25) is fixedly connected to the side wall of the pull plate (16), a pull rope (26) is arranged outside the pull ring (25), a support frame (27) is fixedly connected to the outer wall of the insertion tube (10), and a rope hole matching the pull rope (26) is opened on the side wall of the support frame (27), a reversing wheel is fixedly connected to the side wall of the support frame (27), and the right ends of the two pull ropes (26) are fixedly connected to the same handle.

6. The main cable compacting machine for erection construction of main cable wire strands according to claim 1, characterized in that, The outer fixed sleeve of the installation shaft (8) is provided with a connecting ring (28), the left side wall of the steel belt drum (9) is fixedly connected with two positioning blocks (29), and the side wall of the connecting ring (28) is provided with two grooves matching the positioning blocks (29).

7. A main cable compacting machine for erection construction of main cable wire strands according to claim 6, characterized in that, A plurality of universal balls (30) are fixedly connected to the left side wall of the connecting ring (28).

8. A method of using a main cable compacting machine for the erection construction of main cable strands, characterized in that, Using the main cable tightening machine for main cable strand erection construction as described in any one of claims 1 to 7, the method comprises the following steps: S1. When the main cable tightening machine is first installed, it is done by a truck crane; S2. The main cable tensioning machine is driven by the tower top winch; S3, controlling the steel belt drum (9) to rotate, winding the steel belt outside the steel belt drum (9) around the main cable, and then cutting and fixing the steel belt; S4. After the pre-tightening is completed, the hydraulic jack is unloaded, and the tightening shoe is returned by operating the reversing valve, and the cable tightening machine moves to the next tightening position.

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