CN208099780U - A kind of bolt tensioning jack - Google Patents
A kind of bolt tensioning jack Download PDFInfo
- Publication number
- CN208099780U CN208099780U CN201820655228.8U CN201820655228U CN208099780U CN 208099780 U CN208099780 U CN 208099780U CN 201820655228 U CN201820655228 U CN 201820655228U CN 208099780 U CN208099780 U CN 208099780U
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- China
- Prior art keywords
- piston
- stressed plate
- elongated body
- nut
- piston cylinder
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of bolt tensioning jacks, including stretching nut, support bridge, piston cylinder and piston piece, piston cylinder is connected with hydraulic pipeline by oil inlet, piston piece is installed on the inside of piston cylinder, piston piece is flexibly connected with the inner wall of piston cylinder, piston piece includes piston, piston boit and stop collar, it stretches nut and is flexibly connected piston cylinder, stretching nut includes stretching screw thread, retaining ring, stressed plate, elongated body and mounting ring, retaining ring is mounted on the outside of elongated body, the top of retaining ring is equipped with stressed plate, and mounting ring is connected through a screw thread elongated body；This bolt tensioning jack, retaining ring guarantee the mobile stability of piston boit, and stop collar is for limiting, the stressed plate and mounting ring stretched in nut constitutes an entirety, stressed plate is connected through a screw thread elongated body, i.e. stressed plate can be removed freely, this brings convenience to the dismounting of entire bolt tensioning jack.
Description
Technical field
The utility model relates to hydraulic tool technical field, specially a kind of bolt tensioning jack.
Background technique
Bolt tensioning jack is the title of bolt hydraulic stretcher letter, hydraulic elongator, it is by fluid power booster (superelevation hydraulic fluid
Press pump) provide hydraulic power source, according to the tensile strength of material, yield factor and elongation determine drawing force, utilize super high pressure oil
The expansion force generated is pumped, is elongated the bolt for being applied power in its elastic deformation area, diameter of bolt slight deformation, to make
Nut is easy to loosen, and in addition can also be used as the device that hydraulic pressure excessively full connection applies axial force, carries out press installation.Stretcher is most
Big advantage can be so that multiple bolts be fastened and are dismantled by definite value simultaneously, and cloth power is uniform, are a safe and efficient, efficiently works
Tool is the optimal path of the bolt of fastening and disassembly various specifications.Applied to petrochemical industry, nuclear power, wind-powered electricity generation, water power, thermoelectricity, ship
The fields such as oceangoing ship, railway, aerospace, mining, heavy-duty machinery.Existing bolt tensioning jack often will appear piston when in use
The problem of cylinder shakes influences production security, while existing piston cylinder installation and removal process is inconvenient, influences use feeling
By.
Utility model content
The purpose of this utility model is to provide a kind of bolt tensioning jack, have that stability is good, easy for assemble or unload is excellent
Point, can solve the problems of the prior art.
To achieve the above object, the utility model provides the following technical solutions：A kind of bolt tensioning jack, including stretch spiral shell
Mother, support bridge, piston cylinder and piston piece, oil inlet is offered on the side of the piston cylinder, and piston cylinder passes through oil inlet and connects
There is hydraulic pipeline, piston piece is installed on the inside of piston cylinder, the piston piece is flexibly connected with the inner wall of piston cylinder, piston piece packet
Piston, piston boit and stop collar are included, the top of piston is equipped with piston boit, and restraining position ring block, piston boit are installed in the outside of piston boit
Tip contact connection stretch nut, the stretchings nut is flexibly connected piston cylinder, stretch nut include stretching screw thread, retaining ring,
Stressed plate, elongated body and mounting ring, retaining ring are mounted on the outside of elongated body, and the top of retaining ring is equipped with stressed plate, stressed plate
The top of piston boit is connected, the bottom end of stressed plate is fixedly connected with mounting ring, screw thread is offered at the inner wall of mounting ring, pacifies
Dress ring is connected through a screw thread elongated body, and the inner wall of elongated body offers stretching screw thread, and elongated body connects piston cylinder
Inner wall, pedestal is installed below piston cylinder, support bridge is installed on the inner wall of pedestal.
Preferably, the outer wall of the piston boit is flexibly connected retaining ring.
Preferably, the stop collar and retaining ring connect.
Preferably, the stressed plate is in round pie structure, the central axis of stressed plate and the central axis weight of elongated body
It closes.
Preferably, chamfer angle technique processing is passed through in the edge for stretching nut.
Compared with prior art, the beneficial effects of the utility model are as follows：
This bolt tensioning jack is equipped with piston piece on the inside of piston cylinder, and piston piece can move up and down, and piston piece is to moving up
When dynamic, stretching nut can be jacked up, nut is stretched at this time and pulls bolt, the outer wall of piston boit is flexibly connected retaining ring, and piston boit can be with
It is moved up and down along retaining ring, retaining ring guarantees the mobile stability of piston boit, and stop collar is for limiting；
This bolt tensioning jack, the edge for stretching nut pass through chamfer angle technique processing, reduce corner angle, guarantee that aesthetics is same
When avoid corner angle from hurting user, stretching nut includes stretching screw thread, retaining ring, stressed plate, elongated body and mounting ring；
This bolt tensioning jack, the stressed plate and mounting ring stretched in nut constitute an entirety, and stressed plate is connected by screw thread
Elongated body is connect, i.e. stressed plate can be removed freely, this brings convenience to the dismounting of entire bolt tensioning jack, i.e., entire bolt
Stretcher installing and dismounting process is convenient.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the piston piece schematic diagram of the utility model.
In figure：1 stretches nut, 11 stretching screw threads, 12 retaining rings, 13 stressed plates, 14 elongated bodies, 15 mounting rings, 2 supports
Bridge, 3 piston cylinders, 31 oil inlets, 4 piston pieces, 41 pistons, 42 piston boits, 43 stop collars, 5 hydraulic pipelines, 6 pedestals.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of bolt tensioning jack referring to FIG. 1-2, including nut 1, support bridge 2, piston cylinder 3 and piston piece 4 are stretched, it is living
Oil inlet 31 is offered on the side of plug cylinder 3, piston cylinder 3 is connected with hydraulic pipeline 5, the liquid that hydraulic station generates by oil inlet 31
Pressure oil is transmitted in piston cylinder 3 by hydraulic pipeline 5, and the inside of piston cylinder 3 is equipped with piston piece 4, piston piece 4 can on move down
It is dynamic, when piston piece 4 moves up, it can jack up and stretch nut 1, stretch nut 1 at this time and pull bolt, piston piece 4 and piston cylinder 3
Inner wall is flexibly connected, and piston piece 4 includes piston 41, piston boit 42 and stop collar 43, and the top of piston 41 is equipped with piston boit 42,
The outer wall of piston boit 42 is flexibly connected retaining ring 12, and piston boit 42 can be moved up and down along retaining ring 12, and retaining ring 12 guarantees piston boit
Restraining position ring block 43 is installed in 42 mobile stability, the outside of piston boit 42, and stop collar 43 and retaining ring 12 connect, stop collar 43
For limiting, the tip contact connection of piston boit 42 stretches nut 1, stretches nut 1 and is flexibly connected piston cylinder 3, stretches nut 1
Chamfer angle technique processing is passed through in edge, reduces corner angle, guarantees that aesthetics avoids corner angle from hurting user simultaneously, stretches nut 1
Elongated body 14 is mounted on including stretching screw thread 11, retaining ring 12, stressed plate 13, elongated body 14 and mounting ring 15, retaining ring 12
Outside, the top of retaining ring 12 are equipped with stressed plate 13, and stressed plate 13 is in round pie, the central axis and elongated body 14 of stressed plate 13
Central axis be overlapped, stressed plate 13 connect piston boit 42 top, the bottom end of stressed plate 13 is fixedly connected with mounting ring
15, stressed plate 13 and mounting ring 15 constitute an entirety, and stressed plate 13 is connected through a screw thread elongated body 14, i.e., stressed plate 13 can
Freely to remove, this brings convenience to the dismounting of entire bolt tensioning jack, and screw thread is offered at the inner wall of mounting ring 15, installs
Ring 15 is connected through a screw thread elongated body 14, and the inner wall of elongated body 14, which offers, stretches screw thread 11, and the contact of elongated body 14 connects
It takes over a job the inner wall of plug cylinder 3, the lower section of piston cylinder 3 is equipped with pedestal 6, support bridge 2 is equipped on the inner wall of pedestal 6.
This bolt tensioning jack, including stretch nut 1, support bridge 2, piston cylinder 3 and piston piece 4, piston cylinder 3 and pass through oil inlet
31 connection hydraulic pipelines 5, the inside of piston cylinder 3 is equipped with piston piece 4, and piston piece 4 can move up and down, and piston piece 4 is to moving up
When dynamic, it can jack up and stretch nut 1, stretch nut 1 at this time and pull bolt, the outer wall of piston boit 42 is flexibly connected retaining ring 12, piston
Column 42 can be moved up and down along retaining ring 12, and retaining ring 12 guarantees the mobile stability of piston boit 42, and stop collar 43 is drawn for limiting
Chamfer angle technique processing is passed through in the edge for stretching nut 1, reduces corner angle, guarantees that aesthetics avoids corner angle from hurting user simultaneously,
Stretching nut 1 includes stretching screw thread 11, retaining ring 12, stressed plate 13, elongated body 14 and mounting ring 15, stressed plate 13 and mounting ring
15 constitute an entirety, and stressed plate 13 is connected through a screw thread elongated body 14, i.e. stressed plate 13 can be removed freely, this is to entire
The dismounting of bolt tensioning jack brings convenience, i.e., entire bolt tensioning jack installing and dismounting process is convenient.
In summary：This bolt tensioning jack when piston piece 4 moves up, can jack up and stretch nut 1, stretch nut 1 at this time
Bolt is pulled, retaining ring 12 guarantees the mobile stability of piston boit 42, and stop collar 43 stretches the stressed plate in nut 1 for limiting
13 constitute an entirety with mounting ring 15, and stressed plate 13 is connected through a screw thread elongated body 14, i.e. stressed plate 13 can freely be torn open
Under, this brings convenience to the dismounting of entire bolt tensioning jack, i.e., entire bolt tensioning jack installing and dismounting process is convenient.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of bolt tensioning jack, including stretch nut（1）, support bridge（2）, piston cylinder（3）And piston piece（4）, feature exists
In：The piston cylinder（3）Side on offer oil inlet（31）, piston cylinder（3）Pass through oil inlet（31）It is connected with hydraulic tube
Road（5）, piston cylinder（3）Inside piston piece is installed（4）, the piston piece（4）With piston cylinder（3）Inner wall be flexibly connected,
Piston piece（4）Including piston（41）, piston boit（42）And stop collar（43）, piston（41）Top piston boit is installed（42）,
Piston boit（42）Outside install restraining position ring block（43）, piston boit（42）Tip contact connection stretch nut（1）, the stretching
Nut（1）It is flexibly connected piston cylinder（3）, stretch nut（1）Including stretching screw thread（11）, retaining ring（12）, stressed plate（13）, stretch
Main body（14）And mounting ring（15）, retaining ring（12）It is mounted on elongated body（14）Outside, retaining ring（12）Top be equipped with stress
Plate（13）, stressed plate（13）Connect piston boit（42）Top, stressed plate（13）Bottom end be fixedly connected with mounting ring
（15）, mounting ring（15）Inner wall at offer screw thread, mounting ring（15）It is connected through a screw thread elongated body（14）, elongated body
（14）Inner wall offer stretching screw thread（11）, elongated body（14）Connect piston cylinder（3）Inner wall, piston cylinder（3）'s
Lower section is equipped with pedestal（6）, pedestal（6）Inner wall on support bridge is installed（2）.
2. a kind of bolt tensioning jack according to claim 1, it is characterised in that：The piston boit（42）Outer wall activity connect
Connect retaining ring（12）.
3. a kind of bolt tensioning jack according to claim 1, it is characterised in that：The stop collar（43）With retaining ring（12）It connects
Touching connection.
4. a kind of bolt tensioning jack according to claim 1, it is characterised in that：The stressed plate（13）In round pie knot
Structure, stressed plate（13）Central axis and elongated body（14）Central axis be overlapped.
5. a kind of bolt tensioning jack according to claim 1, it is characterised in that：The stretching nut（1）Edge it is equal
It is handled by chamfer angle technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820655228.8U CN208099780U (en) | 2018-05-03 | 2018-05-03 | A kind of bolt tensioning jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820655228.8U CN208099780U (en) | 2018-05-03 | 2018-05-03 | A kind of bolt tensioning jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208099780U true CN208099780U (en) | 2018-11-16 |
Family
ID=64114646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820655228.8U Expired - Fee Related CN208099780U (en) | 2018-05-03 | 2018-05-03 | A kind of bolt tensioning jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208099780U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605284A (en) * | 2019-01-31 | 2019-04-12 | 中国工程物理研究院机械制造工艺研究所 | A kind of tools for bolts ' pretension stretching device and method |
| CN111408931A (en) * | 2020-04-10 | 2020-07-14 | 王德志 | Hydraulic bolt stretcher |
| CN115076205A (en) * | 2022-06-22 | 2022-09-20 | 东方电气风电股份有限公司 | Novel bolt anti-loosening method applied to oil immersion environment of wind generating set |
-
2018
- 2018-05-03 CN CN201820655228.8U patent/CN208099780U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109605284A (en) * | 2019-01-31 | 2019-04-12 | 中国工程物理研究院机械制造工艺研究所 | A kind of tools for bolts ' pretension stretching device and method |
| CN111408931A (en) * | 2020-04-10 | 2020-07-14 | 王德志 | Hydraulic bolt stretcher |
| CN115076205A (en) * | 2022-06-22 | 2022-09-20 | 东方电气风电股份有限公司 | Novel bolt anti-loosening method applied to oil immersion environment of wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181116 Termination date: 20200503 |
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| CF01 | Termination of patent right due to non-payment of annual fee |