阅读说明：本技术 一种无动力张力器 (Unpowered tensioner ) 是由 刘晖 李亚 于勇 常成 徐世玉 余易洋 盛建星 姚晖 焦傲 张继升 董景峰 李 于 2021-07-06 设计创作，主要内容包括：本发明提出一种无动力张力器,包括底座支架、刹车装置、飞轮、减速机、主传动轴、副传动轴、放线轮、传动限位装置、卡合固定装置,刹车装置活动安装在底座支架上,刹车装置能够控制飞轮的转动,减速机固定安装在底座支架上,飞轮安装在减速机的转轴的一端上,减速机的转轴的另一端与主传动轴联动在一起,主传动轴和副传动轴联动在一起,主传动轴和副传动轴上各安装有一个放线轮,主传动轴和副传动轴的端部安装在传动限位装置上,卡合固定装置安装在底座支架的侧边,卡合固定装置能够与传动限位装置卡合连接,通过刹车装置去控制飞轮,相当于通过刹车装置控制了放线轮的转动状态,操作方便。(The invention provides an unpowered tensioner, which comprises a base support, a brake device, a flywheel, a speed reducer, a main transmission shaft, an auxiliary transmission shaft, a paying-off wheel, a transmission limiting device and a clamping and fixing device, wherein the brake device is movably arranged on the base support and can control the rotation of the flywheel, the speed reducer is fixedly arranged on the base support, the flywheel is arranged at one end of a rotating shaft of the speed reducer, the other end of the rotating shaft of the speed reducer is linked with the main transmission shaft, the main transmission shaft and the auxiliary transmission shaft are linked together, the paying-off wheel is respectively arranged on the main transmission shaft and the auxiliary transmission shaft, the end parts of the main transmission shaft and the auxiliary transmission shaft are arranged on the transmission limiting device, the clamping and fixing device is arranged at the side edge of the base support and can be connected with the transmission limiting device in a clamping way, the flywheel is controlled by the brake device, and equivalently, the rotation state of the paying-off wheel is controlled by the brake device, the operation is convenient.)

1. An unpowered tensioner is characterized by comprising a base support, a brake device, a flywheel, a speed reducer, a main transmission shaft, an auxiliary transmission shaft, a paying-off wheel, a transmission limiting device and a clamping fixing device, wherein the brake device is movably mounted on the base support and can control the rotation of the flywheel, the speed reducer is fixedly mounted on the base support, the flywheel is mounted on one end of a rotating shaft of the speed reducer, the other end of the rotating shaft of the speed reducer is linked with the main transmission shaft, the main transmission shaft is linked with the auxiliary transmission shaft, the main transmission shaft and the auxiliary transmission shaft are respectively provided with one paying-off wheel, the end parts of the main transmission shaft and the auxiliary transmission shaft are mounted on the transmission limiting device, and the clamping fixing device is mounted on the side edge of the base support, the clamping and fixing device can be connected with the transmission limiting device in a clamping manner.

2. The unpowered tensioner according to claim 1, wherein 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 disposed on a side of the base bracket and semi-surround the flywheel, and the brake device is movably mounted on the positioning rear plate.

3. The unpowered tensioner as in claim 2, wherein the positioning back plate is provided with a mounting cylinder, the brake device is provided with a mounting post and a spring, the mounting post extends through the mounting cylinder, the spring is sleeved on the mounting post, and the spring is limited in the mounting cylinder by a nut.

4. The unpowered tensioner as in claim 3, wherein the brake assembly is further provided with a brake pad and a rotating push rod movably mounted on the positioning backplate, rotation of the rotating push rod urging the brake pad against the flywheel surface.

5. The unpowered tensioner as recited in claim 1, wherein the base bracket further comprises 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 disposed at a central position of the base bracket.

6. The unpowered tensioner according to claim 5, further comprising a coupler, a plurality of bearing seats, a chain, and a sprocket, wherein a through hole is formed in the second mounting plate, the bearing seats are 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 with the bearing seats, one end of the coupler is connected with a rotating shaft of the speed reducer, the other end of the coupler is connected with the main transmission shaft, two sprockets are respectively sleeved on the main transmission shaft and the auxiliary transmission shaft, and the chain links the two sprockets together.

7. The unpowered tensioner as in claim 6, further comprising a guard, a bottom portion of the guard being fixedly mounted on the base bracket, the guard covering the chain.

8. The unpowered tensioner according to claim 6, further comprising a plurality of stop rings, wherein the stop rings are respectively sleeved on both sides of the main transmission shaft and the counter transmission shaft and are installed between the bearing seat and the paying-off wheel.

9. The unpowered tensioner as recited in claim 1, wherein the base bracket further comprises a fixing plate, and the engaging and fixing device comprises a first engaging plate and a second engaging plate, the first engaging plate is movably mounted at one end of the fixing plate, and the second engaging plate is movably mounted at the other end of the fixing plate.

10. The unpowered tensioner as recited in claim 9, wherein the transmission limiting device is provided with a fixing clip, the fixing clip is provided with a locking slot, the locking fixing device is provided with a locking buckle, the locking buckle is movably mounted on the first clamping plate to lock the first clamping plate and the second clamping plate to the locking slot, and the fixing post can be locked between the first clamping plate and the second clamping plate by the locking buckle.

Technical Field

The invention relates to the technical field of pay-off devices, in particular to an unpowered tensioner.

Background

In the peak period of power grid construction in recent years, important infrastructures such as power lines, highways and railways are frequently crossed in construction, the crossing construction scheme mainly adopts net sealing crossing, the tension of the rear ends of main ropes, auxiliary ropes and guide ropes of the net sealing is not better solved all the time in the net sealing process, the tension problem is basically solved by winding in a ring or a shackle and manually pushing, and the method has the disadvantages that the tension control method is not standard, the construction method is five-door and eight-door, and no safe and effective operation standard exists; secondly, the guide rope is easy to wear in the construction process, and the service life of the guide rope is shortened; thirdly, the guide rope is blocked or the spreading speed is too fast, so that potential safety hazards or accidents are easily caused for power lines, railways and expressways crossing the lower part.

Disclosure of Invention

In order to solve the above problems, the present invention provides an unpowered tensioner.

The invention is realized by the following technical scheme:

the invention provides an unpowered tensioner, which comprises a base support, a brake device, a flywheel, a speed reducer, a main transmission shaft, an auxiliary transmission shaft, a paying-off wheel, a transmission limiting device and a clamping fixing device, wherein the brake device is movably arranged on the base support, the brake device can control the rotation of the flywheel, the speed reducer is fixedly arranged on the base support, the flywheel is arranged on one end of a rotating shaft of the speed reducer, the other end of the rotating shaft of the speed reducer is linked with the main transmission shaft, the main transmission shaft is linked with the auxiliary transmission shaft, the main transmission shaft and the auxiliary transmission shaft are respectively provided with one paying-off wheel, the end parts of the main transmission shaft and the auxiliary transmission shaft are arranged on the transmission limiting device, and the clamping fixing device is arranged on the side edge of the base support, the clamping and fixing device can be connected with the transmission limiting device in a clamping manner.

Furthermore, a positioning side plate and a positioning rear plate are arranged on the base support, the positioning side plate and the positioning rear plate are arranged on the side edge of the base support and semi-surround the flywheel, and the brake device is movably arranged on the positioning rear plate.

Furthermore, an installation cylinder is arranged on the positioning rear plate, an installation column and a spring are arranged on the brake device, the installation column penetrates through the installation cylinder, the spring is sleeved on the installation column, and the spring is limited in the installation cylinder by a nut.

Furthermore, brake equipment still is equipped with brake block and rotatory push rod, rotatory push rod movable mounting be in on the location back plate, rotate rotatory push rod can with the brake block promotes the butt to flywheel surface.

Further, still be equipped with first mounting panel and second mounting panel on the base support, speed reducer fixed mounting is in on the first mounting panel, the vertical setting of first mounting panel is in the central point of base support puts.

Further, unpowered tensioner still includes shaft coupling, a plurality of bearing frame, chain, sprocket, be equipped with the through-hole on the second mounting panel, bearing frame fixed mounting be in aim at on the second mounting panel the through-hole, final drive shaft with the counter drive shaft passes the through-hole and with the bearing frame is connected, shaft coupling one end with the pivot of speed reducer is connected, the other end of shaft coupling with final drive shaft connects, two the sprocket is established respectively the cover the final drive shaft with on the counter drive shaft, the chain is two the sprocket linkage is in the same place.

Furthermore, the unpowered tensioner further comprises a protective cover, the bottom of the protective cover is fixedly installed on the base support, and the chain is covered by the protective cover.

Furthermore, unpowered tensioner still includes a plurality of backstop rings, the backstop ring overlaps respectively and is established final drive shaft with the both sides of counter drive shaft, and install the bearing frame with between the actinobacillus wheel.

Further, still be equipped with the fixed plate on the base system support, block fixing device includes first cardboard and second cardboard, first cardboard movable mounting be in the one end of fixed plate, second cardboard movable mounting be in the other end of fixed plate.

Furthermore, a fixing clamp column is arranged on the transmission limiting device, a clamping groove is formed in the fixing clamp column, a lock catch is arranged on the clamping fixing device, the lock catch is movably mounted on the first clamping plate, the first clamping plate and the second clamping plate are clamped on the clamping groove, and the fixing column can be locked between the first clamping plate and the second clamping plate through the lock catch.

The invention has the beneficial effects that:

the unpowered tensioner provided by the invention controls the rotation condition of the flyer through the brake device, so as to control the rotation condition of the paying-off wheel, the working state of the paying-off machine can be controlled only by rotating and adjusting the rotating push rod, the control is convenient and effective, the safe distance between the guide rope and the strided equipment is ensured, the effect is continuous, the traditional manual pushing and releasing for solving the tension problem is changed into the simple mechanical operation for solving the tension problem, and the time and the labor are saved.

Drawings

FIG. 1 is an exploded view of the unpowered tensioner of the present invention;

FIG. 2 is a perspective view of the unpowered tensioner of the present invention;

FIG. 3 is a perspective view of another angle of the unpowered tensioner of the present invention;

fig. 4 is a schematic structural view of the fastening device of the present invention.

Detailed Description

In order to more clearly and completely describe the technical scheme of the invention, the invention is further described with reference to the accompanying drawings.

Referring to fig. 1-4, the present invention provides an unpowered tensioner, which includes a base bracket 10, a brake device 18, a flywheel 23, a speed reducer 24, a main transmission shaft 31, an auxiliary transmission shaft 32, a paying-off wheel 33, a transmission limiting device 34, and a clamping fixing device 37, wherein the brake device 18 is movably mounted on the base bracket 10, the brake device 18 can control the rotation of the flywheel 23, the speed reducer 24 is fixedly mounted on the base bracket 10, the flywheel 23 is mounted on one end of a rotating shaft of the speed reducer 24, the other end of the rotating shaft of the speed reducer 24 is linked with the main transmission shaft 31, the main transmission shaft 31 is linked with the auxiliary transmission shaft 32, the paying-off wheel 33 is mounted on each of the main transmission shaft 31 and the auxiliary transmission shaft 32, the ends of the main transmission shaft 31 and the auxiliary transmission shaft 32 are mounted on the transmission limiting device 34, the clamping and fixing device 37 is installed at the side of the base bracket 10, and the clamping and fixing device 37 can be clamped and connected with the transmission limiting device 34. Still be equipped with first mounting panel 11 and second mounting panel 12 on the base support 10, speed reducer 24 fixed mounting be in on the first mounting panel 11, the vertical setting of first mounting panel 11 is in the central point of base support 10 puts. Unpowered tensioner still includes shaft coupling 25, a plurality of bearing frame 29, chain 27, sprocket 28, be equipped with through-hole 13 on the second mounting panel 12, bearing frame 29 fixed mounting is in aim at on the second mounting panel 12 through-hole 13, final drive shaft 31 with countershaft 32 passes through-hole 13 and with bearing frame 29 is connected, shaft coupling 25 one end with speed reducer 24's pivot is connected, shaft coupling 25's the other end with final drive shaft 31 is connected, two sprocket 28 overlaps respectively and is established final drive shaft 31 with countershaft 32 is last, chain 27 is two the sprocket 28 linkage is in the same place.

In an embodiment, the speed reducer 24 is a whole power source of the unpowered tensioner, when the speed reducer 24 rotates, the flywheel 23 and the main transmission shaft 31 can be simultaneously driven, the main transmission shaft 31 drives the auxiliary transmission shaft 32 through the linkage of the chain 27, so that as long as the speed reducer 24 is started, the two paying-off wheels 33 can simultaneously rotate. The paying-off wheel 33 is provided with a wire slot as a traditional traction wire wheel, the guide rope is wound on the paying-off wheel 33 in sequence, and traction or unwinding of the guide rope is realized through forward rotation or reverse rotation of the paying-off wheel 33. Two bearing blocks 29 are all installed to the both sides of second mounting panel 12, the central authorities of bearing block 29 just with through-hole 13 aligns, final drive shaft 31 is followed the one end of through-hole 13 wear the other end and with shaft coupling 25 links together, uses shaft coupling 25 handle final drive shaft 31 with the pivot of speed reducer 24 links together, can link whole device like this, through speed reducer 24 drives final drive shaft 31 rotates. The state of the flywheel 23 is controlled by the control of the brake device 18, so that the rotation state of the paying-off wheel 33 is controlled.

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

In the present embodiment, the positioning side plate 14 and the positioning rear plate 15 surround the half of the flywheel 23, so that the flywheel 23 can be effectively protected to prevent the flywheel 23 from touching the outside.

Furthermore, an installation cylinder 16 is arranged on the positioning rear plate 15, an installation column 19 and a spring 20 are arranged on the brake device 18, the installation column 19 penetrates through the installation cylinder 16, the spring 20 is sleeved on the installation column 19, and the spring 20 is limited in the installation cylinder 16 by a nut. The brake device 18 is further provided with a brake pad 21 and a rotary push rod 22, the rotary push rod 22 is movably mounted on the positioning rear plate 15, and the brake pad 21 can be pushed to abut against the surface of the flywheel 23 by rotating the rotary push rod 22.

In this embodiment, adjustment of the brake device 18 enables the unpowered tensioner to have three operating states. In the first working state, there is no tension, in this state, the brake pad 21 is completely separated from the flywheel 23, and at this time, the guide rope can be pulled by the paying-off wheel 33; the second working state is a half-tension state, in which the brake pad 21 and the flywheel 23 are in a half-contact state, that is, the brake pad 21 and the flywheel 23 are in contact, but the flywheel 23 can also rotate, and in this state, the tension can be adjusted by adjusting the rotary push rod 22 according to actual needs on site, so as to control the lifting height of the guide rope; and in a third working state, the flywheel 23 is in a full tension state, the brake device 18 completely brakes the flywheel 23 in the state, the flywheel 23 cannot rotate, the guide rope cannot be pulled, and the brake device is in a brake state.

Further, the unpowered tensioner further comprises a shield 26, the bottom of the shield 26 is fixedly mounted on the base support 10, and the shield 26 covers the chain 27.

In this embodiment, both sides of the bottom of the guard 26 are fixedly connected to both sides of the base frame 10, and then the guard 26 is formed in a dome shape to be able to protect the chain 27 by half-enclosing.

Further, unpowered tensioner still includes a plurality of backstop rings 30, backstop ring 30 overlaps respectively and establishes final drive shaft 31 with the both sides of counter drive shaft 32, and install bearing frame 29 with between the actinobacillus wheel 33.

In this embodiment, one stop ring 30 is mounted on each side of the two payout rollers 33.

Further, a fixing plate 17 is further arranged on the base bracket, the fastening and fixing device 37 includes a first fastening plate 38 and a second fastening plate 39, the first fastening plate 38 is movably mounted at one end of the fixing plate 17, and the second fastening plate 39 is movably mounted at the other end of the fixing plate 17. The transmission limiting device 34 is provided with a fixed clamping column 35, the fixed clamping column 35 is provided with a clamping groove 36, the clamping fixing device 37 is provided with a lock catch 40, the lock catch 40 is movably mounted on the first clamping plate 38, the first clamping plate 38 and the second clamping plate 39 are clamped on the clamping groove 36, and the fixed column can be locked between the first clamping plate 38 and the second clamping plate 39 through the lock catch 40.

In this embodiment, two bearing seats 29 are also fixedly mounted on the transmission limiting device 34, and are used for being connected with two transmission shafts. The first catch plate 38 and the second catch plate 39 are movably connected to two ends of the fixed plate 17 by using shafts, respectively, and both the first catch plate 38 and the second catch plate 39 can rotate relative to the fixed plate 17. A semicircular clamping position is arranged on each of the first clamping plate 38 and the second clamping plate 39, when the two clamping positions are aligned with the clamping groove 36 and folded, the clamping positions can be just clamped into the clamping groove 36, and then the lock catch 40 is locked, so that the fixed clamping position can be clamped and fixed on the clamping and fixing device 37.

Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.