CN207390901U - A kind of super-pressure mechanical caging hydraulic jack - Google Patents
A kind of super-pressure mechanical caging hydraulic jack Download PDFInfo
- Publication number
- CN207390901U CN207390901U CN201721438214.2U CN201721438214U CN207390901U CN 207390901 U CN207390901 U CN 207390901U CN 201721438214 U CN201721438214 U CN 201721438214U CN 207390901 U CN207390901 U CN 207390901U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- jack
- cylinder body
- super
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Actuator (AREA)
Abstract
The utility model discloses a kind of super-pressure mechanical caging hydraulic jacks, including jack piston rod (1), cylinder body (2), the top outer circle of the jack piston rod (1) is equipped with external screw thread (11), is threadedly coupled by external screw thread (11) with mechanical locknut (3)；The upper surface of the jack piston rod (1) is spherical saddle (12), in the spherical saddle (12) above with being bolted spherical top cap (4)；The embedded SMA actuators of the jack piston rod (1) have cylindrical hole (13), several resetting springs (5) are set in the cylindrical hole (13), with being bolted to connection at the top of piston cavity, the other end and the bottom of cylinder body (2) are bolted to connection for one end of the resetting spring (5)；Ultra-high voltage sealing ring (6) is equipped between the lower part outer circle of the jack piston rod (1) and the inner wall of the cylinder body (2).
Description
Technical field
The utility model belongs to mechanical caging field, and in particular to a kind of super-pressure mechanical caging hydraulic jack.
Background technology
Ultrahigh pressure jack has that mechanic jacks and hydraulic jack etc. are several, and principle is had nothing in common with each other.For from principle,
The most basic principle that hydraulic drive is based on is exactly pascal's principle, that is, the pressure of liquid everywhere be it is consistent, it is common
To hydraulic jack be exactly that make use of this principle to reach the transmission of power.105Mpa need to generally be passed through when dispatching from the factory
(1050Kgf/cm2) is tested, and can meet high pressure resistant 105Mpa can be described as ultrahigh pressure jack.
Support using the jack pair weight of hydraulic oil liquid driving is a kind of unstable flexible support, and there is height for it
The problem of reflux of pressure oil liquid and seal failure, fluid reflux will seriously and when sealing unreliable cause the branch of jack pair weight
Support failure, seriously affects the safe handling of jack.
Traditional hydraulic jack roof construction is low pressure or strong design, and volume is big, weight weight, mobile inconvenient, narrow and small
Space can not use, and internal piston resetting spring is few, and human assistance is needed to reset, and work efficiency is low.
Utility model content
Purpose of utility model：The defects of in order to overcome the prior art, provides a kind of super-pressure mechanical caging hydraulic jack
Top, increases security and the flexibility of jack, prolongs the service life, and mitigates operator's labor intensity, improves work efficiency.
Technical solution：A kind of super-pressure mechanical caging hydraulic jack, it is described very heavy including jack piston rod, cylinder body
The top outer circle for pushing up piston rod is equipped with external screw thread, is connected by external screw thread with mechanical lock box thread；The jack piston rod
Upper surface be spherical saddle, in the spherical saddle above with being bolted spherical top cap；The jack piston rod
Embedded SMA actuators have cylindrical hole, and several resetting springs, one end and the piston cavity top of the resetting spring are set in the cylindrical hole
Portion is bolted to connection, and the bottom of the other end and cylinder body is bolted to connection；The lower part of the jack piston rod
Ultra-high voltage sealing ring is equipped between the inner wall of outer circle and the cylinder body.
The ultra-high voltage sealing ring uses super polyurethane for sealing material sealability to be made to reach 200Mpa.
The quantity of the size of the cylindrical hole of the jack piston rod inner cavity and the resetting spring of setting, can be according to reset
Speed needs are adjusted.
The bottom of the cylinder body is equipped with hydraulic pressure oilhole and ultra-high pressure quick coupling；The hydraulic pressure oilhole passes in and out for hydraulic oil
Passage, the ultra-high pressure quick coupling be for hydraulic power unit oil pipe is connected the connector used with jack, it is common quick
Connector can only pressure-resistant 70MPa, the ultra-high pressure quick coupling is outsourcing import standardized element, can pressure-resistant 200Mpa.
The outer wall both sides of the cylinder body are additionally provided with symmetrically arranged lifting bolt, facilitate carrying jack.
Operation principle：
After the cylinder body oil inlet pressurization, the jack piston rod jacking load will be set on jack piston rod
Mechanical locknut is threaded to be bonded with cylinder body top, at this time since jack piston rod is connected with mechanical lock box thread, mechanical locknut and
The gravity of load is born on cylinder body top, is reduced the pressure to hydraulic oil liquid, can for a long time, safely be supported load；And thousand
The unbalance loading that the spherical saddle of jin top piston rod end can bear load reaches the 3% of cylinder hydraulic rated capacity, can reduce thousand
The long-term compression of the ultra-high voltage sealing ring of jin top underpart of the piston rod；When jack piston rod moves upwards, resetting spring stress
It is stretched, when jack pressure release, jack piston rod do not have the driving force of hydraulic oil, the retraction force of resetting spring is jack
Piston rod is returned to downwards cylinder bottom, completes to reset work.
The beneficial effects of the utility model：The utility model using mechanical nut-locking, can for a long time, safety supports load；
The unbalance loading that can be born reaches the 3% of hydraulic cylinder rated capacity, reduces the long-term abrasion that is pressurized to sealing ring, extends and use the longevity
Life；It is designed using super-pressure and reduces jack weight, it is easy to operate in small space convenient for moving；It can oversize piston inside bullet
Spring pore size increases the quantity of resetting spring, further improves piston reset speed；Combined seal structure, ultrahigh hardness are close
Closure material makes sealability reach 200Mpa, improves the security of work.
Description of the drawings
Fig. 1 is structural section schematic diagram when hydraulic jack described in the utility model withstands on jacking load condition；
Fig. 2 is structural section schematic diagram when hydraulic jack described in the utility model withstands on pressure release state.
Specific embodiment
In order to make the purpose of this utility model, technical solution and advantage clearer, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in detail in example.
Fig. 1, shown in 2, a kind of super-pressure mechanical caging hydraulic jack, including jack piston rod 1, cylinder body 2, described thousand
The top outer circle of jin top piston rod 1 is equipped with external screw thread 11, is threadedly coupled by external screw thread 11 with mechanical locknut 3；It is described very heavy
The upper surface for pushing up piston rod 1 is spherical saddle 12, in the spherical saddle 12 above with being bolted spherical top cap 4；It is described
The embedded SMA actuators of jack piston rod 1 have cylindrical hole 13, and several resetting springs 5, the reset bullet are set in the cylindrical hole 13
With being bolted to connection at the top of piston cavity, the bottom of the other end and cylinder body 2 is bolted to connection for one end of spring 5；
Ultra-high voltage sealing ring 6 is equipped between the lower part outer circle of the jack piston rod 1 and the inner wall of the cylinder body 2.
The ultra-high voltage sealing ring 6 uses super polyurethane sealing material, and sealability is made to reach 200Mpa.
The quantity of the size of the cylindrical hole 13 of the jack piston rod inner cavity and the resetting spring 5 of setting, can basis
Reset speed needs are adjusted.
The bottom of the cylinder body 2 is equipped with hydraulic pressure oilhole 7 and ultra-high pressure quick coupling 8, and the hydraulic pressure oilhole 7 is hydraulic oil
The passage of disengaging, the ultra-high pressure quick coupling 8 are for hydraulic power unit oil pipe is connected the connector used with jack, commonly
Quick coupling can only pressure-resistant 70MPa, the ultra-high pressure quick coupling is outsourcing import standardized element, can pressure-resistant 200Mpa.
The outer wall both sides of the cylinder body 2 are additionally provided with symmetrically arranged lifting bolt 9, facilitate carrying jack.
Operation principle：
After 2 oil inlet of the cylinder body pressurization, the jacking of jack piston rod 1 load will be set on jack piston rod 1
Mechanical locknut 3 be threaded to be bonded with 2 top of cylinder body, at this time since jack piston rod 1 is threadedly coupled with mechanical locknut 3, machinery
The gravity of load is born on locknut 3 and 2 top of cylinder body, is reduced the pressure to hydraulic oil liquid, can for a long time, safely be supported negative
It carries；And the unbalance loading that the spherical saddle 12 of 1 end of jack piston rod can bear load reaches cylinder hydraulic rated capacity
3%, the long-term compression of the ultra-high voltage sealing ring 6 of 1 lower part of jack piston rod can be reduced；It is moved upwards in jack piston rod 1
When, 5 stress of resetting spring is stretched, when jack pressure release, jack piston rod 1 without hydraulic oil driving force when, reset bullet
Jack piston rod 1 is returned to downwards cylinder bottom by the retraction force of spring 5, completes to reset work.
The foregoing is merely the preferred embodiments of the utility model, are not intended to limit the utility model, in this practicality
Any modifications, equivalent replacements and improvements are made within new spirit and principle, the system that should be included in the utility model
Within structure.
Claims (4)
1. a kind of super-pressure mechanical caging hydraulic jack, which is characterized in that including jack piston rod (1), cylinder body (2), institute
The top outer circle for stating jack piston rod (1) is equipped with external screw thread (11), is connected by external screw thread (11) and mechanical locknut (3) screw thread
It connects；The upper surface of the jack piston rod (1) is spherical saddle (12), is connected in the spherical saddle (12) above with bolt
Shape of receiving top cap (4)；The embedded SMA actuators of the jack piston rod (1) have cylindrical hole (13), are set in the cylindrical hole (13)
Be bolted to connection at the top of several resetting springs (5), one end of the resetting spring (5) and piston cavity, the other end with
The bottom of cylinder body (2) is bolted to connection；The lower part outer circle of the jack piston rod (1) is interior with the cylinder body (2)
Ultra-high voltage sealing ring (6) is equipped between wall.
2. super-pressure mechanical caging hydraulic jack according to claim 1, which is characterized in that the ultra-high voltage sealing ring
(6) super polyurethane sealing material is used, sealability is made to reach 200Mpa.
3. super-pressure mechanical caging hydraulic jack according to claim 1, which is characterized in that the jack piston rod
The quantity of the size of the cylindrical hole (13) of inner cavity and the resetting spring (5) of setting can need to be adjusted according to reset speed.
4. super-pressure mechanical caging hydraulic jack according to claim 1, which is characterized in that the bottom of the cylinder body 2
Equipped with hydraulic pressure oilhole (7) and ultra-high pressure quick coupling (8), the ultra-high pressure quick coupling is outsourcing import standardized element, energy
Pressure-resistant 200Mpa；The outer wall both sides of the cylinder body (2) are additionally provided with symmetrically arranged lifting bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721438214.2U CN207390901U (en) | 2017-11-01 | 2017-11-01 | A kind of super-pressure mechanical caging hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721438214.2U CN207390901U (en) | 2017-11-01 | 2017-11-01 | A kind of super-pressure mechanical caging hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207390901U true CN207390901U (en) | 2018-05-22 |
Family
ID=62327966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721438214.2U Active CN207390901U (en) | 2017-11-01 | 2017-11-01 | A kind of super-pressure mechanical caging hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207390901U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109534211A (en) * | 2019-01-24 | 2019-03-29 | 长江水利委员会长江科学院 | A kind of flexible jack |
| CN109577200A (en) * | 2018-11-13 | 2019-04-05 | 上海建工集团股份有限公司 | One kind being used for more supporting leg support system reaction of bearing control device and methods |
-
2017
- 2017-11-01 CN CN201721438214.2U patent/CN207390901U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109577200A (en) * | 2018-11-13 | 2019-04-05 | 上海建工集团股份有限公司 | One kind being used for more supporting leg support system reaction of bearing control device and methods |
| CN109577200B (en) * | 2018-11-13 | 2020-07-07 | 上海建工集团股份有限公司 | Support counter force control device and method for multi-leg support system |
| CN109534211A (en) * | 2019-01-24 | 2019-03-29 | 长江水利委员会长江科学院 | A kind of flexible jack |
| CN109534211B (en) * | 2019-01-24 | 2023-10-27 | 长江水利委员会长江科学院 | Flexible jack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207390901U (en) | A kind of super-pressure mechanical caging hydraulic jack | |
| CN207418181U (en) | A kind of external screw thread mechanical caging double-action hydraulic jack | |
| CN204436938U (en) | Double-acting self locking oil hydraulic cylinder | |
| CN202829375U (en) | Sequentially-telescopic multistage binding oil cylinder structure | |
| CN207390903U (en) | A kind of hydraulic jack for being easy to nursing | |
| CN103671008A (en) | Quaternary ultrahigh pressure inflator | |
| CN105735817B (en) | A kind of gas-liquid mixed power drive unit with pooling feature | |
| CN203702489U (en) | Fourth-stage ultrahigh-pressure inflator | |
| CN204057844U (en) | A kind of large-tonnage air pressure reset jack | |
| CN216430125U (en) | Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out | |
| CN105236292A (en) | Airplane jack device | |
| CN107500175A (en) | A kind of hydraulic jack for being easy to nursing | |
| CN109306975A (en) | A kind of Novel winding-type accumulator | |
| CN107324237A (en) | Field bridge cart jacking cylinder mechanical anti-falling device | |
| CN104973533B (en) | A kind of three-dimensional jack | |
| CN208168818U (en) | A kind of oil-well rig hydraulic hoisting machine host | |
| CN208500214U (en) | A kind of laborsaving durable hydraulic jack | |
| Suryawanshi et al. | Design and fabrication of hydraulic bearing puller and pusher | |
| CN206244319U (en) | A kind of Novel jack | |
| CN207608810U (en) | A kind of vertical damping decompressor in bridge bottom end | |
| CN206677518U (en) | Hydraulic pin remover for coal mine hydraulic supporting dismounting | |
| CN201284206Y (en) | Long-term supporting hydraulic operating gear | |
| CN206244320U (en) | Piston self-locking type hydraulic jack | |
| CN206266157U (en) | A kind of pressing machine hydraulic jack | |
| CN207192669U (en) | A kind of more piece separated type hydraulic jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |