A non-powered tensioner

Abstract

The present invention proposes a non-powered tensioner, comprising a base bracket, a brake device, a flywheel, a reducer, a main transmission shaft, a secondary transmission shaft, a pay-off wheel, a transmission limiting device, and a clamping and fixing device. The brake device is movably mounted on the base bracket, the brake device can control the rotation of the flywheel, the reducer is fixedly mounted on the base bracket, the flywheel is mounted on one end of the rotating shaft of the reducer, the other end of the rotating shaft of the reducer is linked with the main transmission shaft, the main transmission shaft and the secondary transmission shaft are linked together, a pay-off wheel is respectively mounted on the main transmission shaft and the secondary transmission shaft, the ends of the main transmission shaft and the secondary transmission shaft are mounted on the transmission limiting device, the clamping and fixing device is mounted on the side of the base bracket, the clamping and fixing device can be clamped and connected with the transmission limiting device, and controlling the flywheel by the brake device is equivalent to controlling the rotation state of the pay-off wheel by the brake device, which is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of wire-releasing devices, and in particular to a non-powered tensioner. Background Art

[0002] In recent years, the power grid construction is at its peak. During construction, important infrastructure such as power lines, highways, and railways are often crossed. The crossing construction plan is mainly closed net crossing. During the closing process, there has been no good solution to the rear end tension of the main rope, auxiliary rope, and guide rope of the closing net. Basically, the method is to wrap it in a ring or shackle and use manual pushing to solve the tension problem. The disadvantages of this method are: first, the tension control method is not standardized, the construction methods are varied, and there is no safe and effective operating standard; second, the guide rope is easily worn during the construction process, reducing the service life of the guide rope; third, the guide rope is stuck or the release speed is too fast, which is easy to cause safety hazards or accidents for the power lines, railways and highways crossing below. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a non-powered tensioner.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes an unpowered tensioner, which includes a base bracket, a brake device, a flywheel, a reducer, a main transmission shaft, a secondary transmission shaft, a pay-off wheel, a transmission limiting device, and a clamping and fixing device. The brake device is movably mounted on the base bracket, and the brake device can control the rotation of the flywheel. The reducer is fixedly mounted on the base bracket, and the flywheel is mounted on one end of the rotating shaft of the reducer. The other end of the rotating shaft of the reducer is linked with the main transmission shaft, and the main transmission shaft and the secondary transmission shaft are linked together. A pay-off wheel is respectively mounted on the main transmission shaft and the secondary transmission shaft, and the ends of the main transmission shaft and the secondary transmission shaft are mounted on the transmission limiting device. The clamping and fixing device is mounted on the side of the base bracket, and the clamping and fixing device can be clamped and connected with the transmission limiting device.

[0006] Furthermore, the base bracket is provided with a positioning side plate and a positioning rear plate, the positioning side plate and the positioning rear plate are both arranged on the side of the base bracket and semi-surround the flywheel, and the brake device is movably mounted on the positioning rear plate.

[0007] Furthermore, a mounting tube is provided on the positioning rear plate, a mounting column and a spring are provided on the brake device, the mounting column passes through the mounting tube, the spring is sleeved on the mounting column, and a nut is used to confine the spring in the mounting tube.

[0008] Furthermore, the brake device is also provided with a brake pad and a rotating push rod, and the rotating push rod is movably mounted on the positioning rear plate, and rotating the rotating push rod can push the brake pad to abut against the flywheel surface.

[0009] Furthermore, the base bracket is also provided with a first mounting plate and a second mounting plate, the reducer is fixedly mounted on the first mounting plate, and the first mounting plate is vertically arranged at the center position of the base bracket.

[0010] Furthermore, the unpowered tensioner also includes a coupling, a plurality of bearing seats, a chain, and a sprocket. A through hole is provided on the second mounting plate. The bearing seat is fixedly mounted on the second mounting plate and aligned with the through hole. The main transmission shaft and the auxiliary transmission shaft pass through the through hole and are connected to the bearing seat. One end of the coupling is connected to the rotating shaft of the reducer, and the other end of the coupling is connected to the main transmission shaft. The two sprockets are respectively mounted on the main transmission shaft and the auxiliary transmission shaft, and the chain links the two sprockets together.

[0011] Furthermore, the unpowered tensioner also includes a shield, the bottom of which is fixedly mounted on the base bracket, and the shield covers the chain.

[0012] Furthermore, the unpowered tensioner also includes a plurality of stop rings, which are respectively sleeved on both sides of the main transmission shaft and the auxiliary transmission shaft, and installed between the bearing seat and the pay-off wheel.

[0013] Furthermore, a fixing plate is also provided on the base bracket, and the clamping and fixing device includes a first clamping plate and a second clamping plate, the first clamping plate is movably mounted on one end of the fixing plate, and the second clamping plate is movably mounted on the other end of the fixing plate.

[0014] Furthermore, the transmission limiting device is provided with a fixed clamping column, the fixed clamping column is provided with a clamping slot, the clamping fixing device is provided with a lock, and the lock is movably installed on the first clamping plate, so that the first clamping plate and the second clamping plate are clamped into the clamping slot, and the fixed clamping column can be locked between the first clamping plate and the second clamping plate through the lock.

[0015] Beneficial effects of the present invention:

[0016] The unpowered tensioner proposed in the present invention controls the rotation of the flywheel through a brake device, thereby controlling the rotation of the pay-off wheel. The working state of the pay-off machine can be controlled by rotating and adjusting the rotating push rod. The control is convenient and effective, ensuring a safe distance between the guide rope and the equipment being crossed, and being continuously effective. The traditional manual pushing and releasing method to solve the tension problem is changed to solving the tension problem through simple mechanical operation, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the exploded structure of the unpowered tensioner of the present invention;

[0018] Figure 2 A three-dimensional diagram of the unpowered tensioner of the present invention;

[0019] Figure 3 A three-dimensional diagram of the unpowered tensioner of the present invention from another angle;

[0020] Figure 4 It is a schematic structural diagram of the clamping and fixing device of the present invention. DETAILED DESCRIPTION

[0021] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] Please refer to Figure 1-4The present invention proposes an unpowered tensioner, which includes a base bracket 10, a brake device 18, a flywheel 23, a reducer 24, a main transmission shaft 31, a secondary transmission shaft 32, a pay-off wheel 33, a transmission limit device 34, and a clamping fixing device 37. The brake device 18 is movably mounted on the base bracket 10, and the brake device 18 can control the rotation of the flywheel 23. The reducer 24 is fixedly mounted on the base bracket 10, and the flywheel 23 is mounted on the rotating shaft of the reducer 24. On one end, the other end of the rotating shaft of the reducer 24 is linked with the main transmission shaft 31, and the main transmission shaft 31 and the secondary transmission shaft 32 are linked together. A pay-off wheel 33 is installed on each of the main transmission shaft 31 and the secondary transmission shaft 32. The ends of the main transmission shaft 31 and the secondary transmission shaft 32 are installed on the transmission limit device 34. The clamping fixture 37 is installed on the side of the base bracket 10, and the clamping fixture 37 can be clamped and connected with the transmission limit device 34. The base bracket 10 is also provided with a first mounting plate 11 and a second mounting plate 12, and the reducer 24 is fixedly mounted on the first mounting plate 11, and the first mounting plate 11 is vertically arranged at the central position of the base bracket 10. The unpowered tensioner also includes a coupling 25, a plurality of bearing seats 29, a chain 27, and a sprocket 28. A through hole 13 is provided on the second mounting plate 12. The bearing seat 29 is fixedly mounted on the second mounting plate 12 and aligned with the through hole 13. The main transmission shaft 31 and the secondary transmission shaft 32 pass through the through hole 13 and are connected to the bearing seat 29. One end of the coupling 25 is connected to the rotating shaft of the reducer 24, and the other end of the coupling 25 is connected to the main transmission shaft 31. The two sprockets 28 are respectively sleeved on the main transmission shaft 31 and the secondary transmission shaft 32. The chain 27 links the two sprockets 28 together.

[0023] In the embodiment, the reducer 24 is the power source of the unpowered tensioner. When the reducer 24 rotates, the flywheel 23 and the main transmission shaft 31 can be driven at the same time. The main transmission shaft 31 drives the secondary transmission shaft 32 through the linkage of the chain 27. In this way, as long as the reducer 24 is started, the two pay-off wheels 33 can rotate at the same time. The pay-off wheel 33 is the same as the traditional pulling wire wheel, and a wire groove is provided on it. The guide rope is wound on the pay-off wheel 33 in sequence, and the guide rope is pulled or released by the forward or reverse rotation of the pay-off wheel 33. Two bearing seats 29 are installed on both sides of the second mounting plate 12, and the center of the bearing seat 29 is just aligned with the through hole 13. The main transmission shaft 31 passes through one end of the through hole 13 to the other end and is connected with the coupling 25. The coupling 25 is used to connect the main transmission shaft 31 and the rotating shaft of the reducer 24, so that the whole device can be linked, and the main transmission shaft 31 is driven to rotate by the reducer 24. The state of the flywheel 23 is controlled by the control of the brake device 18, so as to control the rotation state of the pay-off wheel 33.

[0024] Furthermore, the base bracket 10 is provided with a positioning side plate 14 and a positioning rear plate 15, and the positioning side plate 14 and the positioning rear plate 15 are both arranged on the side of the base bracket 10 and semi-surround the flywheel 23, and the brake device 18 is movably mounted on the positioning rear plate 15.

[0025] In this embodiment, the positioning side plate 14 and the positioning rear plate 15 surround half of the flywheel 23, so that the flywheel 23 can be effectively protected and prevented from touching the outside.

[0026] Furthermore, the positioning rear plate 15 is provided with a mounting tube 16, and the brake device 18 is provided with a mounting column 19 and a spring 20, the mounting column 19 passes through the mounting tube 16, the spring 20 is sleeved on the mounting column 19, and a nut is used to restrict the spring 20 in the mounting tube 16. The brake device 18 is also provided with a brake pad 21 and a rotating push rod 22, the rotating push rod 22 is movably mounted on the positioning rear plate 15, and the rotating push rod 22 can be rotated to push the brake pad 21 to abut against the surface of the flywheel 23.

[0027] In this embodiment, adjusting the brake device 18 can make the unpowered tensioner have three working states. The first working state is the tension-free state, in which the brake pad 21 is completely separated from the flywheel 23, and the guide rope can be pulled by the pay-off wheel 33; the second working state is the semi-tension state, in which the brake pad 21 and the flywheel 23 are in a semi-contact state, that is, the brake pad 21 and the flywheel 23 are in contact, but the flywheel 23 can still rotate at this time. In this state, the tension can be adjusted by adjusting the rotating push rod 22 according to the actual needs of the site, so as to control the lifting height of the guide rope; the third working state is the full tension state, in which the brake device 18 completely brakes the flywheel 23, the flywheel 23 cannot rotate, the guide rope cannot be pulled, and is in a braking state.

[0028] Furthermore, the unpowered tensioner also includes a shield 26 , the bottom of which is fixedly mounted on the base support 10 , and the shield 26 covers the chain 27 .

[0029] In this embodiment, two sides of the bottom of the protective cover 26 are fixedly connected to two sides of the base bracket 10, and then the protective cover 26 is an arch shape, which can half-enclose and protect the chain 27.

[0030] Furthermore, the unpowered tensioner also includes a plurality of stop rings 30 , which are respectively sleeved on both sides of the main transmission shaft 31 and the auxiliary transmission shaft 32 , and installed between the bearing seat 29 and the pay-off wheel 33 .

[0031] In this embodiment, a stop ring 30 is installed on both sides of the two pay-off wheels 33 .

[0032] Furthermore, the base bracket 10 is also provided with a fixing plate 17, and the clamping and fixing device 37 includes a first clamping plate 38 and a second clamping plate 39, wherein the first clamping plate 38 is movably mounted on one end of the fixing plate 17, and the second clamping plate 39 is movably mounted on the other end of the fixing plate 17. The transmission limiting device 34 is provided with a fixing clamping column 35, and the fixing clamping column 35 is provided with a clamping groove 36, and the clamping and fixing device 37 is provided with a lock 40, and the lock 40 is movably mounted on the first clamping plate 38, and the first clamping plate 38 and the second clamping plate 39 are clamped to the clamping groove 36, and the fixing clamping column 35 can be locked between the first clamping plate 38 and the second clamping plate 39 through the lock 40.

[0033] In this embodiment, two bearing seats 29 are also fixedly mounted on the transmission limit device 34 for connecting with two transmission shafts. The first clamping plate 38 and the second clamping plate 39 are respectively movably connected to the two ends of the fixed plate 17 by shaft rods, and the first clamping plate 38 and the second clamping plate 39 can rotate relative to the fixed plate 17. A semicircular clamping position is provided on the first clamping plate 38 and the second clamping plate 39. When the two clamping positions are aligned with the clamping slot 36 and closed, they can just fit into the clamping slot 36, and then the lock buckle 40 is locked, so that the fixed clamping position can be fixed on the clamping fixing device 37.

[0034] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A non-powered tensioner, characterized in that: The unpowered tensioner comprises a base bracket, a brake device, a flywheel, a reducer, a main transmission shaft, a secondary transmission shaft, a pay-off wheel, a transmission limiting device, and a clamping and fixing device. The brake device is movably mounted on the base bracket, and the brake device can control the rotation of the flywheel. The reducer is fixedly mounted on the base bracket, and the flywheel is mounted on one end of the rotating shaft of the reducer. The other end of the rotating shaft of the reducer is linked with the main transmission shaft, and the main transmission shaft and the secondary transmission shaft are linked together. A pay-off wheel is respectively mounted on the main transmission shaft and the secondary transmission shaft, and the ends of the main transmission shaft and the secondary transmission shaft are mounted on the transmission limiting device. The clamping and fixing device is mounted on the side of the base bracket, and the clamping and fixing device can be clamped and connected with the transmission limiting device. The base bracket is provided with a positioning side plate and a positioning rear plate, the positioning side plate and the positioning rear plate are both arranged on the side of the base bracket and half surround the flywheel, and the brake device is movably mounted on the positioning rear plate; The positioning rear plate is provided with a mounting tube, the brake device is provided with a mounting column and a spring, the mounting column passes through the mounting tube, the spring is sleeved on the mounting column, and a nut is used to restrict the spring in the mounting tube; The brake device is also provided with a brake pad and a rotating push rod, wherein the rotating push rod is movably mounted on the positioning rear plate, and the brake pad can be pushed to abut against the flywheel surface by rotating the rotating push rod; The base bracket is also provided with a fixing plate, and the clamping and fixing device includes a first clamping plate and a second clamping plate, the first clamping plate is movably mounted on one end of the fixing plate, and the second clamping plate is movably mounted on the other end of the fixing plate.

2. The unpowered tensioner according to claim 1, characterized in that: The base bracket is also provided with a first mounting plate and a second mounting plate, the reducer is fixedly mounted on the first mounting plate, and the first mounting plate is vertically arranged at the center of the base bracket.

3. The unpowered tensioner according to claim 2, characterized in that: The unpowered tensioner also includes a coupling, a plurality of bearing seats, a chain, and a sprocket. A through hole is provided on the second mounting plate. The bearing seat is fixedly mounted on the second mounting plate and aligned with the through hole. The main transmission shaft and the auxiliary transmission shaft pass through the through hole and are connected to the bearing seat. One end of the coupling is connected to the rotating shaft of the reducer, and the other end of the coupling is connected to the main transmission shaft. The two sprockets are respectively mounted on the main transmission shaft and the auxiliary transmission shaft, and the chain links the two sprockets together.

4. The unpowered tensioner according to claim 3, characterized in that: The unpowered tensioner also includes a guard cover, the bottom of which is fixedly mounted on the base bracket, and the guard cover covers the chain.

5. The unpowered tensioner according to claim 3, characterized in that: The unpowered tensioner also includes a plurality of stop rings, which are respectively sleeved on both sides of the main transmission shaft and the auxiliary transmission shaft, and installed between the bearing seat and the pay-off wheel.

6. The unpowered tensioner according to claim 1, characterized in that: The transmission limiting device is provided with a fixed clamping column, the fixed clamping column is provided with a clamping slot, the clamping fixing device is provided with a lock buckle, and the lock buckle is movably mounted on the first clamping plate, and the first clamping plate and the second clamping plate are clamped into the clamping slot, and the fixed clamping column can be locked between the first clamping plate and the second clamping plate through the lock buckle.

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