CN214838157U - Steel strand jack pre-tightening device - Google Patents
Steel strand jack pre-tightening device Download PDFInfo
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- CN214838157U CN214838157U CN202121313098.8U CN202121313098U CN214838157U CN 214838157 U CN214838157 U CN 214838157U CN 202121313098 U CN202121313098 U CN 202121313098U CN 214838157 U CN214838157 U CN 214838157U
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- steel strand
- strand wires
- clamping piece
- cylinder
- gland
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Abstract
Steel strand wires jack preloading device, by hydraulic cylinder, steel strand wires clamping mechanism and supporting seat are constituteed, hydraulic cylinder is by the bottom, the cylinder, piston and inner tube are constituteed, bottom upper end and supporting seat connection, the built-in spring of supporting seat, inside bottom and cylinder were arranged in to the piston, the piston rod is arranged in to the inner tube inside, steel strand wires clamping mechanism is by the taper sleeve, the clamping piece, gland and spring are constituteed, the taper sleeve top links to each other with the inside inner tube of hydraulic cylinder piston rod, the clamping piece is embedded in taper sleeve upper portion, set up the through-hole that is used for connecting the steel strand wires in the middle of the clamping piece, the spring passes through the gland and fixes in the clamping piece bottom, the gland sets up corresponding through-hole corresponding to the through-hole of clamping piece. The utility model discloses a steel strand wires jack provides a steel strand wires preloading device, ensures that every steel strand wires all is in the state of straining before promoting the heavy object, avoids the steel strand wires phenomenon of relaxing to ensure that the steel strand wires atress is even, have simple structure, the advantage of convenient and safe and reliable of operation.
Description
Technical Field
The utility model relates to a hoist and mount safety device technical field, concretely relates to steel strand wires jack preloading device.
Background
The steel strand jack is the linear type straight-through jack that steel strand stretching used, it is more and more to adopt hydraulic jack to drive the project of steel strand as lifting device, many steel strands pass from the jack center, then use the clamping piece to pin the steel strand tip, but the steel strand is in promoting the load in-process, because the different steel strand length that link to each other with the load differs, can cause different steel strand atress inhomogeneous, the heavy object promotes the in-process because the inhomogeneous harm to the steel strand of atress is great, can shorten the life of steel strand.
Disclosure of Invention
The utility model provides a steel strand wires jack preloading device to the not enough of prior art existence to solve the inhomogeneous problem of steel strand wires atress that prior art exists.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a steel strand wires jack preloading device, by hydraulic cylinder, steel strand wires clamping mechanism and supporting seat are constituteed, hydraulic cylinder is by the bottom, the cylinder, piston and inner tube are constituteed, bottom upper end and supporting seat connection, the built-in spring of supporting seat, inside bottom and cylinder were arranged in to the piston, the piston rod is arranged in to the inner tube inside, steel strand wires clamping mechanism is by the taper sleeve, the clamping piece, gland and spring are constituteed, the taper sleeve top links to each other with the inside inner tube of hydraulic cylinder piston rod, the clamping piece is embedded in taper sleeve upper portion, set up the through-hole that is used for connecting the steel strand wires in the middle of the clamping piece, the spring passes through the gland and fixes in the clamping piece bottom, the gland sets up corresponding through-hole corresponding to the through-hole of clamping piece.
And a sealing sleeve is arranged between the bottom cover of the hydraulic oil cylinder and the piston.
And one side of the cylinder barrel of the hydraulic oil cylinder is provided with a handle.
The utility model discloses during the use, operating personnel arranges preloading device in steel strand wires jack top, passes steel strand wires clamping mechanism gland with every steel strand wires top and connects in the inside clamping piece of taper sleeve, and hydraulic cylinder makes its promotion through the clamping piece of taper sleeve under the piston rod control to ensure that every steel strand wires all is in the state of straining before promoting the heavy object, avoid the lax phenomenon of steel strand wires, ensure like this that every steel strand wires atress is even.
The utility model discloses a steel strand wires jack provides a steel strand wires preloading device, ensures that every steel strand wires all is in the state of straining before promoting the heavy object, avoids the steel strand wires phenomenon of relaxing to ensure that the steel strand wires atress is even, have simple structure, the advantage of convenient and safe and reliable of operation.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, a spring 1, a support base 2, a bottom cover 3, a cylinder 4, a sealing sleeve 5, a piston 6, a handle 7, a piston rod 8, an inner cylinder 9, a taper sleeve 10, a clamping piece 11, a gland 12 and a spring 13 are arranged.
Detailed Description
As shown in the figure, a steel strand jack preloading device, by hydraulic cylinder, steel strand clamping mechanism and supporting seat 2 constitute, hydraulic cylinder is by bottom 3, cylinder 4, piston 6 and inner tube 9 constitute, cylinder one side sets up handle 7, bottom 3 upper end is connected with supporting seat 2, supporting seat 2 embeds spring 1, piston 6 is arranged in inside bottom 3 and cylinder 4, inner tube 9 is arranged in inside piston rod 8, set up seal cover 5 between bottom and the piston, steel strand clamping mechanism is by taper sleeve 10, clamping piece 11, gland 12 and spring 13 constitute, the inside inner tube 9 of taper sleeve 10 top and hydraulic cylinder piston rod links to each other, clamping piece 11 is embedded in taper sleeve 10 upper portion, set up the through-hole that is used for connecting the steel strand in the middle of the clamping piece, spring 13 passes through the gland to be fixed in the clamping piece bottom, gland 12 sets up corresponding through-hole corresponding to the through-hole of clamping piece 11.
The utility model discloses during the use, operating personnel arranges preloading device in steel strand wires jack top, passes steel strand wires clamping mechanism gland with every steel strand wires top and connects in the inside clamping piece of taper sleeve, and hydraulic cylinder makes its promotion through the clamping piece of taper sleeve under the piston rod control to ensure that every steel strand wires all is in the state of straining before promoting the heavy object, avoid the lax phenomenon of steel strand wires, ensure like this that every steel strand wires atress is even.
Claims (3)
1. The utility model provides a steel strand wires jack preloading device, characterized by is by hydraulic cylinder, steel strand wires clamping mechanism and supporting seat are constituteed, hydraulic cylinder is by the bottom, the cylinder, piston and inner tube are constituteed, bottom upper end and supporting seat connection, the built-in spring of supporting seat, inside bottom and cylinder are arranged in to the piston, the piston rod is arranged in to the inner tube inside, steel strand wires clamping mechanism is by the taper sleeve, the clamping piece, gland and spring are constituteed, the taper sleeve top links to each other with the inside inner tube of hydraulic cylinder piston rod, the clamping piece is embedded in taper sleeve upper portion, set up the through-hole that is used for connecting the steel strand wires in the middle of the clamping piece, the spring passes through the gland to be fixed in the clamping piece bottom, the gland sets up corresponding through-hole corresponding to the through-hole of clamping piece.
2. The steel strand jack pretensioning device of claim 1, wherein a gland seal is provided between the bottom cap of the hydraulic cylinder and the piston.
3. The pre-tensioning device for the steel strand jack of claim 1, wherein a handle is arranged on one side of a cylinder barrel of the hydraulic oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121313098.8U CN214838157U (en) | 2021-06-11 | 2021-06-11 | Steel strand jack pre-tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121313098.8U CN214838157U (en) | 2021-06-11 | 2021-06-11 | Steel strand jack pre-tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214838157U true CN214838157U (en) | 2021-11-23 |
Family
ID=78805520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121313098.8U Active CN214838157U (en) | 2021-06-11 | 2021-06-11 | Steel strand jack pre-tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214838157U (en) |
-
2021
- 2021-06-11 CN CN202121313098.8U patent/CN214838157U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pre tightening device of steel strand jack Effective date of registration: 20220707 Granted publication date: 20211123 Pledgee: Dongguang Rural Credit Union Co.,Ltd. Pledgor: DONGGUANG COUNTY, THE NEW HYDRAULIC MACHINERY MANUFACTURING CO.,LTD. Registration number: Y2022110000152 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |