CN2708547Y - Energizing thread-tightening lead screw - Google Patents
Energizing thread-tightening lead screw Download PDFInfo
- Publication number
- CN2708547Y CN2708547Y CN 200420023833 CN200420023833U CN2708547Y CN 2708547 Y CN2708547 Y CN 2708547Y CN 200420023833 CN200420023833 CN 200420023833 CN 200420023833 U CN200420023833 U CN 200420023833U CN 2708547 Y CN2708547 Y CN 2708547Y
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- lead screw
- thread
- pinion
- screw
- ratchet
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Abstract
The utility model discloses an energizing thread-tightening lead screw capable of generating the axial contracting force by using a reversing screw thread lead screw to be screwed with a pipe type double head reversing screw sleeve. The thread-tightening lead screw comprises the main body of the rod type double head reversing screw thread lead screw whose middle is fixedly connected with a gearwheel, two pipe type double head reversing screw sleeves which are respectively screwed with both ends of the screw thread lead screw, and a pinion transmission positioning rod which is arranged at one side of the rod type double head reversing screw thread lead screw. A pinion fixedly connected with the pinion transmission positioning rod (shaft) is engaged with the gearwheel fixedly connected with the rod type double head reversing screw thread lead screw. When the ratchet handle is pulled, the ratchet wheel can drive the pinion transmission positioning rod, the pinion, the gearwheel, and the rod type double head reversing screw thread lead screw, which are fixedly connected with the ratchet wheel, to rotate. The two pipe type double head reversing screw sleeves which are screwed with the ratchet wheel can generate the axial contracting force on the main body of the reversing screw thread lead screw. The utility model can greatly enhance the contracting force of the thread-tightening lead screw and generate the contracting force to replace the contracting force of the insulator which is equal to or more than the 16-ton level.
Description
Technical field
The utility model relates to the mechanical stringing device that uses in the replacing maintenance of equipment such as the leading of a kind of power engineering construction and ultra-high-tension power transmission line, ground wire, insulator, particularly, the utility model relates to reinforcement thread-tightening lead screw that use, that can increase the bolt contractility in a kind of replacing maintenance of the said equipment.
Background technology
Up to now, employed stringing device in the replacing maintenance of equipment such as the leading of power engineering construction and ultra-high-tension power transmission line, ground wire, insulator all is to adopt traditional ratchet-type thread-tightening lead screw.In two sides of the leading of the ultra-high-tension power transmission line that maintenance to be replaced is arranged, ground wire or insulator string, two cover ratchet-type thread-tightening lead screws are installed respectively.Specifically, pull the ratchet handle of ratchet-type thread-tightening lead screw, rotate ratchet, reach the suitable threaded screw rod of the tubular type double end that is connected with it, and make swivel nut do relative rotation with screw rod, produce axial mechanical convergent force along screw rod, thus, make ratchet-type thread-tightening lead screw self fastened.When the fastening force of ratchet-type thread-tightening lead screw self tension force greater than the leading of the ultra-high-tension power transmission line of maintenance to be replaced, ground wire or insulator string, the leading of the then described ultra-high-tension power transmission line that maintenance to be replaced arranged, ground wire or insulator string are because of the fastened relaxation state that is in of ratchet-type thread-tightening lead screw self of its two side, under this relaxation state, can lead, loading and unloading, the replacement of equipment such as ground wire or insulator.
Shown in accompanying drawing 1,2, described ratchet-type machinery thread-tightening lead screw 10 is to adopt the tubular type double end to reach the swivel nut 102 of the two end band fork-shaped anchor clamps 103 that screw togather with it along threaded screw rod 101, described tubular type double end is fallen and to be connected two jigs (anchor clamps) respectively along swivel nut 102 2 ends, and described jig (anchor clamps) is fixedly connected with two ends of insulator string of the ultra-high-tension power transmission line of maintenance to be replaced respectively.Described tubular type double end is fallen along ratchet 8 structures that are provided with on the swivel nut 102 by transmission handle 6 interlocks.Described ratchet structure is driven by the transmission handle.
When the replacing maintenance of equipment such as the leading of ultra-high-tension power transmission line, ground wire or insulator, the maintainer utilizes arm strength to shake ratchet-type transmission handle 6, drives ratchet 8, and the ratchet 7 by ratchet 8 promotes fixedly connected with it tubular type double end and falls along threaded screw rod.Thus, rotational circle cast double end is fallen along swivel nut 102, and makes swivel nut 102 do relative rotation with screw rod 101, and along the axial mechanical convergent force of screw rod generation, ratchet-type thread-tightening lead screw 10 self is fastened.When the fastening force of ratchet-type thread-tightening lead screw 10 self tension force greater than the insulator string of the ultra-high-tension power transmission line of maintenance to be replaced, the insulator string of the then described ultra-high-tension power transmission line that maintenance to be replaced arranged is because of the fastened relaxation state that is in of ratchet-type thread-tightening lead screw self of its two side, under this relaxation state, can lead, loading and unloading, the replacement of equipment such as ground wire or insulator.
describedly lead, the loading and unloading of equipment such as ground wire, insulator, replace finish after, oppositely stir ratchet shifting block 7, make ratchet 7 oppositely block ratchet 8, can oppositely stir the screw rod of the suitable screw thread of tubular type double end by handle 6, thus, make swivel nut do oppositely relative rotation, shed axial mechanical convergent force with screw rod.When the mechanical convergent force (fastening force) of ratchet-type thread-tightening lead screw self tension force less than the leading of the ultra-high-tension power transmission line of changing maintenance, ground wire or insulator string, the leading of the ultra-high-tension power transmission line that then described replacing maintenance finishes, ground wire or insulator string are in tensioning state because of its tension force heavily again greater than the mechanical convergent force of the ratchet-type thread-tightening lead screw of two sides.At this moment, detachable bottom ratchet wheel formula thread-tightening lead screw, the equipment replacement maintenance is finished.
Yet, adopt the thread-tightening lead screw of the stringing device of above-mentioned traditional ratchet-type transmission handle, lead, during the replacing maintenance of equipment such as ground wire or insulator, the problem of its existence is: the nut on the described bolt is just as directly rotating with common spanner, use effort, thus, make power engineering and on ultra-high-tension power transmission line the running out of space of work high above the ground personnel of construction operation.In addition, because the fastening force (convergent force) that forms thus is less, therefore, be difficult to 16 tonnes and above insulator are changed.Thereby, can't satisfy instructions for use.
In view of the above problems, the purpose of this utility model is, provides a kind of when being used for the replacing maintenance of equipment such as the leading of ultra-high-tension power transmission line, ground wire or insulator, can increase the reinforcement thread-tightening lead screw of bolt contractility.By the above-mentioned reinforcement thread-tightening lead screw that increases the bolt contractility, when equipment such as the leading of ultra-high-tension power transmission line, ground wire or insulator are changed maintenance, the thread-tightening lead screw convergent force can be significantly increased, convergent force that satisfy to change 16 tonnes and above insulator can be produced.
Summary of the invention
A kind of like this thread-tightening lead screw of mechanical type reinforcement thread-tightening lead screw system that increases the bolt contractility of the present utility model, described thread-tightening lead screw suitable threaded screw rod of system's employing and the cast double end that screws togather with it are fallen along swivel nut generation axial contraction force.It is characterized in that described thread-tightening lead screw comprises:
The whole rod-type double end that is fixed with gear wheel in the middle of it is fallen along the threaded screw rod main body;
Be screwed together respectively to fall along swivel nut in two cast double ends of described threaded screw rod two ends;
Be arranged at above-mentioned whole rod-type double end along the pinion drive backstay of threaded screw rod one side, the pinion that is fixed on the described pinion drive backstay (axle) meshes along the gear wheel on the threaded screw rod with being fixed on described whole rod-type double end,
Pull ratchet handle, can drive described pinion drive backstay by the ratchet that is fixed on the described pinion drive backstay, pinion and gear wheel and whole rod-type double end are fallen and are rotated along threaded screw rod, two cast double ends that screw togather relatively on it are fallen along swivel nut, fall in whole rod-type double end and produce axial shrinkage along the threaded screw rod main body.
Again, a kind of like this thread-tightening lead screw of mechanical type reinforcement thread-tightening lead screw system that increases the bolt contractility of the present utility model, described thread-tightening lead screw suitable threaded screw rod of system's employing and the cast double end that screws togather with it are fallen along screw thread swivel nut generation axial contraction force.It is characterized in that described thread-tightening lead screw comprises:
The whole rod-type double end that is fixed with gear wheel in the middle of it is fallen along the threaded screw rod main body;
Be screwed together respectively to fall along threaded screw rod in two cast double ends of described screw thread swivel nut two ends;
Be arranged at above-mentioned whole rod-type double end along the pinion drive backstay of threaded screw rod one side, the pinion that is fixed on the described pinion drive backstay (axle) meshes along the gear wheel on the threaded screw rod with being fixed on described whole rod-type double end,
Pull ratchet handle, can drive described pinion drive backstay by the ratchet that is fixed on the described pinion drive backstay, pinion and gear wheel and whole rod-type double end are fallen and are rotated along threaded screw rod, two cast double ends that screw togather relatively on it are fallen along the screw thread swivel nut, fall in whole rod-type double end and produce axial shrinkage along the threaded screw rod main body.Be preferably,, on described ratchet handle, be provided with and stir the ratchet shifting block that ratchet blocks ratchet forward or backwards according to mechanical type reinforcement thread-tightening lead screw of the present invention.
Be preferably, according to mechanical type reinforcement thread-tightening lead screw of the present invention, it is rectangle that described two cast double ends are fallen along the swivel nut profile, and has the fork-shaped link respectively.
Be preferably, according to mechanical type reinforcement thread-tightening lead screw of the present invention, the both sides of pinion and described whole rod-type double end are provided with the gear positioning baffle along the both sides of threaded screw rod gear wheel on the pinion drive backstay.
Be preferably, according to mechanical type reinforcement thread-tightening lead screw of the present invention, described cast double end is provided with the resistance that is used to stop pinion to center on the gear wheel rotation along the screw thread swivel nut and revolves slip ring.
The operation principle of the mechanical type reinforcement thread-tightening lead screw that increases the bolt contractility of the present utility model is as follows:
Shake the ratchet transmission handle on the reinforcement thread-tightening lead screw, under the engaging of ratchet, the pinion on ratchet drive pinion drive link and this bar rotates together, and the gear wheel that drive is meshed with pinion reaches the suitable screw rod rotation of the double end that is connected with it.
Because the gear wheel double end is connecting swivel nut respectively along two ends of screw rod, and the connection of swivel nut end fork is to connect to be fixed on stringing jig and the thread-tightening lead screw anchor point, therefore, when pinion drives gear wheel and gear wheel thereof and falls along the screw rod rotation, described gear wheel falls and forms the relative rotary motion of making axial stretching along screw rod and the swivel nut that is fixed on the stringing jig, relative rotary motion because of suitable screw rod of gear wheel and swivel nut forms axial stretching, reaches the purpose of stringing.
Description of drawings
Figure 1 shows that vertical cross-sectional schematic of mechanical type thread-tightening lead screw in the past.
Figure 2 shows that the stereogram of mechanical type thread-tightening lead screw in the past.
Figure 3 shows that the stereoscopic figure of reinforcement thread-tightening lead screw of the present utility model.
Figure 4 shows that the user mode schematic diagram of reinforcement thread-tightening lead screw of the present utility model.
Figure 5 shows that the vertical cross-sectional schematic of axle of reinforcement thread-tightening lead screw of the present utility model.
Figure 6 shows that the horizontal cross-sectional schematic of axle of reinforcement thread-tightening lead screw of the present utility model.
Among the figure, 100 is mechanical type thread-tightening lead screw in the past, and 110 is reinforcement thread-tightening lead screw of the present invention.1 screw mandrel swivel nut for band fork-shaped connector, 2 is the gear wheel transmission double end connecting screw rod with critical piece of stringing function, 3 for being fixed with the pinion drive backstay (axle) of pinion, and 4 is pinion, and 5 is gear wheel, 6 is ratchet handle, 7 is the shifting block type ratchet, and 8 is ratchet, and 9 is the fork-shaped connector, 10 is that slip ring is revolved in the resistance that can stop pinion to center on the gear wheel rotation, and 11 gears that position for the engagement to pinion and gear wheel, that be positioned at pinion and gear wheel side are located side plate.101 is the suitable swivel nut of tubular type double end of mechanical type thread-tightening lead screw in the past, and 102 is the suitable screw rod of double end of mechanical type thread-tightening lead screw in the past, and 103 is the fork-shaped connector of the suitable screw rod end of double end in the past.
Embodiment
Below, with reference to accompanying drawing 3-6, do an explanation with regard to specific embodiment of the present utility model.
Embodiment 1
As shown in drawings, mechanical type reinforcement thread-tightening lead screw comprises: the screw mandrel swivel nut 1 of two band fork-shaped connectors; The gear wheel transmission double end connecting screw rod 2 of its stringing function critical piece, two ends of described gear wheel transmission double end connecting screw rod 2 screw in respectively in the screw mandrel swivel nut 1 of two band fork-shaped connectors, wherein are fixed with gear wheel 5; Be fixed with the pinion drive backstay 3 of pinion 4, described pinion drive backstay 3 is by the engagement and gear wheel transmission double end connecting screw rod 2 interlocks of pinion and gear wheel, and revolves slip ring 10 by four resistances and be fixed in gear wheel transmission double end connecting screw rod 2 sides; The engagement of pinion and gear wheel is by side plate 11 location, two gear location; The ratchet of band ratchet handle 6 is fixedlyed connected with pinion is coaxial, and shifting block type ratchet 7 is stirred by fore-and-aft direction, and may command ratchet 7 blocks ratchet 8 forward or backwards.
Screw mandrel swivel nut 1 profile that screws togather respectively with two ends of described gear wheel transmission double end connecting screw rod 2 is square, thus, can help to prevent that the pinion drive backstay from around described gear wheel transmission double end connecting screw rod 2 and screw mandrel swivel nut 1 thereof revolution relatively taking place.
In addition, pinion and described whole rod-type double end are provided with the gear positioning baffle along the both sides of threaded screw rod gear wheel on the pinion drive backstay.
Described whole rod-type double end is provided with the resistance that is used to stop pinion to center on the gear wheel rotation along the screw thread swivel nut and revolves slip ring.
Among the embodiment 1, the ratio of the number of teeth of pinion and gear wheel is 1/2.Thus, can make the operating physical force of thread-tightening lead screw reduce half that is about in the past.
Embodiment 2
As shown in drawings, mechanical type reinforcement thread-tightening lead screw comprises: the screw mandrel swivel nut 1 of two band fork-shaped connectors; The gear wheel transmission double end connecting screw rod 2 of its stringing function critical piece, two ends of described gear wheel transmission double end connecting screw rod 2 screw in respectively in the screw mandrel swivel nut 1 of two band fork-shaped connectors, wherein are fixed with gear wheel 5; Be fixed with the pinion drive backstay 3 of pinion 4, described pinion drive backstay 3 is by the engagement and gear wheel transmission double end connecting screw rod 2 interlocks of pinion and gear wheel, and revolves slip ring 10 by four resistances and be fixed in gear wheel transmission double end connecting screw rod 2 sides; The engagement of pinion and gear wheel is by side plate 11 location, two gear location; The ratchet of band ratchet handle 6 is fixedlyed connected with pinion is coaxial, and shifting block type ratchet 7 is stirred by fore-and-aft direction, and may command ratchet 7 blocks ratchet 8 forward or backwards.
Screw mandrel swivel nut 1 profile that screws togather respectively with two ends of described gear wheel transmission double end connecting screw rod 2 is square, thus, can help to prevent that the pinion drive backstay from around described gear wheel transmission double end connecting screw rod 2 and screw mandrel swivel nut 1 thereof revolution relatively taking place.
In addition, pinion and described whole rod-type double end are provided with the gear positioning baffle along the both sides of threaded screw rod gear wheel on the pinion drive backstay.
Described whole rod-type double end is provided with the resistance that is used to stop pinion to center on the gear wheel rotation along the screw thread swivel nut and revolves slip ring.
Among the embodiment 2, the ratio of the number of teeth of pinion and gear wheel is 2/3.Thus, the operating physical force of thread-tightening lead screw is reduced be about in the past 2/3.
Except the gear wheel transmission double end link 2 as stringing function critical piece falls along the screw thread swivel nut for double end, screw in two screw mandrel screw rods that band fork-shaped link 1 is of two ends of described gear wheel transmission double end connection swivel nut 2 respectively, the ratio of the number of teeth of pinion and gear wheel is outside 1/4, and other are as embodiment 1.Thus, the operating physical force of thread-tightening lead screw is reduced be about in the past more than 1/4.
Be preferably, according to reinforcement thread-tightening lead screw of the present invention, the ratio of the number of times of above-mentioned pinion and gear wheel is between 2/3-1/4, be more preferably, the ratio of the number of times of above-mentioned pinion and gear wheel is between 1/2-1/3, and best is that the ratio of the number of times of above-mentioned pinion and gear wheel is 1/2.
According to the utility model, provide a kind of when the replacing maintenance that is used for equipment such as the leading of ultra-high-tension power transmission line, ground wire or insulator, can increase the reinforcement thread-tightening lead screw of bolt contractility.Described reinforcement thread-tightening lead screw comprises the suitable threaded screw rod of described whole rod-type double end and is arranged at the pinion drive backstay of suitable threaded screw rod one side of above-mentioned whole rod-type double end, be fixed on pinion and the gear wheel engagement that is fixed on the suitable threaded screw rod of described whole rod-type double end on the described pinion drive backstay (axle), pull ratchet handle, can drive described pinion drive backstay by the ratchet that is fixed on the described pinion drive backstay, pinion and gear wheel and whole rod-type double end are fallen and are rotated along threaded screw rod, two cast double ends that screw togather relatively on it are fallen along swivel nut, fall in whole rod-type double end and produce axial shrinkage along the threaded screw rod main body.By the above-mentioned reinforcement thread-tightening lead screw that increases the bolt contractility, when equipment such as the leading of ultra-high-tension power transmission line, ground wire or insulator are changed maintenance, the thread-tightening lead screw convergent force can be significantly increased, the convergent force that satisfies 16 tonnes of replacings and above insulator thereof can be produced.
Claims (9)
1. mechanical type reinforcement thread-tightening lead screw is characterized in that described thread-tightening lead screw comprises:
The whole rod-type double end that is fixed with gear wheel in the middle of it is fallen along the threaded screw rod main body;
Be screwed together respectively to fall along swivel nut in two cast double ends of described threaded screw rod two ends;
Be arranged at above-mentioned whole rod-type double end along the pinion drive backstay of threaded screw rod one side, the pinion that is fixed on the described pinion drive backstay meshes along the gear wheel on the threaded screw rod with being fixed on described whole rod-type double end,
Pull ratchet handle, can drive described pinion drive backstay by the ratchet that is fixed on the described pinion drive backstay, pinion and gear wheel and whole rod-type double end are fallen and are rotated along threaded screw rod, two cast double ends that screw togather relatively on it are fallen along swivel nut, fall in whole rod-type double end and produce axial shrinkage along the threaded screw rod main body.
2. mechanical type reinforcement thread-tightening lead screw is characterized in that described thread-tightening lead screw comprises:
The whole rod-type double end that is fixed with gear wheel in the middle of it is fallen along screw thread swivel nut main body;
Be screwed together respectively to fall along threaded screw rod in two cast double ends of described screw thread swivel nut two ends;
Be arranged at above-mentioned whole rod-type double end along the pinion drive backstay of screw thread swivel nut one side, the pinion that is fixed on the described pinion drive backstay meshes along the gear wheel on the screw thread swivel nut with being fixed on described whole rod-type double end,
Pull ratchet handle, can drive described pinion drive backstay by the ratchet that is fixed on the described pinion drive backstay, pinion and gear wheel and whole rod-type double end are fallen and are rotated along the screw thread swivel nut, two cast double ends that screw togather relatively on it are fallen along threaded screw rod, fall in whole rod-type double end and produce axial shrinkage along screw thread swivel nut main body.
3. mechanical type reinforcement thread-tightening lead screw as claimed in claim 1 is characterized in that, is provided with on described ratchet handle and can stirs the ratchet shifting block that ratchet blocks ratchet forward or backwards.
4. mechanical type reinforcement thread-tightening lead screw as claimed in claim 2 is characterized in that, is provided with on described ratchet handle and can stirs the ratchet shifting block that ratchet blocks ratchet forward or backwards.
5. as each described mechanical type reinforcement thread-tightening lead screw of claim 1-4, it is characterized in that it is rectangle that described two cast double ends are fallen along the swivel nut profile, and has the fork-shaped link respectively.
6. as each described mechanical type reinforcement thread-tightening lead screw of claim 1-4, it is characterized in that the both sides of pinion and described whole rod-type double end are provided with the gear positioning baffle along the both sides of threaded screw rod gear wheel on the pinion drive backstay.
7. as each described mechanical type reinforcement thread-tightening lead screw of claim 1-4, it is characterized in that described whole rod-type double end is provided with the resistance that is used to stop pinion to center on the gear wheel rotation along threaded screw rod and revolves slip ring.
8. as each described mechanical type reinforcement thread-tightening lead screw of claim 1-4, it is characterized in that the ratio of the number of times of above-mentioned pinion and gear wheel is between 1/2-1/4.
9. mechanical type reinforcement thread-tightening lead screw as claimed in claim 8 is characterized in that the ratio of the number of times of above-mentioned pinion and gear wheel is 1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023833 CN2708547Y (en) | 2004-06-17 | 2004-06-17 | Energizing thread-tightening lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023833 CN2708547Y (en) | 2004-06-17 | 2004-06-17 | Energizing thread-tightening lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708547Y true CN2708547Y (en) | 2005-07-06 |
Family
ID=34849351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023833 Expired - Fee Related CN2708547Y (en) | 2004-06-17 | 2004-06-17 | Energizing thread-tightening lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708547Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219671A (en) * | 2013-04-18 | 2013-07-24 | 国家电网公司 | Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode |
| CN103247961A (en) * | 2013-04-24 | 2013-08-14 | 国家电网公司 | V-shaped pull rod fixture for live working of changing large-tension tension insulator |
| CN105510136A (en) * | 2016-01-28 | 2016-04-20 | 上海盛蒂斯自动化设备有限公司 | Pressure applying device and skirt guard panel stress deformation measurement system |
| CN108023302A (en) * | 2018-01-19 | 2018-05-11 | 浙江省送变电工程有限公司 | A kind of more changing device of insulator |
-
2004
- 2004-06-17 CN CN 200420023833 patent/CN2708547Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219671A (en) * | 2013-04-18 | 2013-07-24 | 国家电网公司 | Operating method for replacing 220 kV U210B/170 type strain insulator string in live mode |
| CN103247961A (en) * | 2013-04-24 | 2013-08-14 | 国家电网公司 | V-shaped pull rod fixture for live working of changing large-tension tension insulator |
| CN105510136A (en) * | 2016-01-28 | 2016-04-20 | 上海盛蒂斯自动化设备有限公司 | Pressure applying device and skirt guard panel stress deformation measurement system |
| CN108023302A (en) * | 2018-01-19 | 2018-05-11 | 浙江省送变电工程有限公司 | A kind of more changing device of insulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20130617 |