CN107720598A - A kind of internal thread mechanical caging hydraulic jack - Google Patents
A kind of internal thread mechanical caging hydraulic jack Download PDFInfo
- Publication number
- CN107720598A CN107720598A CN201711080172.4A CN201711080172A CN107720598A CN 107720598 A CN107720598 A CN 107720598A CN 201711080172 A CN201711080172 A CN 201711080172A CN 107720598 A CN107720598 A CN 107720598A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- internal thread
- hydraulic jack
- oil storage
- support column
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
Abstract
The invention discloses a kind of internal thread mechanical caging hydraulic jack, including bottom, support column, piston rod, cylinder body, mounting seat, bottom is connected with cylinder body one end and forms sealing, support column is arranged in cylinder body along cylinder body axial direction, and support column one end is fixed with bottom and supports column outer wall to be less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can moved along support column central axis direction；Piston rod inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on the one end of support column away from bottom and can be by rotating relative position of the regulation in piston rod, and piston rod upper end is mounting seat.
Description
Technical field
The present invention relates to a kind of internal thread mechanical caging hydraulic jack.
Background technology
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 pressing oil liquid backflow and seal failure, fluid backflow will seriously and when sealing unreliable cause the branch of jack pair weight
Support failure, has a strong impact on the safe handling of jack, and the mechanical self-latching top of traditional structure is designed for single-acting, spring reset, long
Phase uses rear spring fatigue, and reset speed is slack-off, and operating efficiency is low.
The content of the invention
The present invention provides a kind of internal thread mechanical caging hydraulic jack to solve problems of the prior art
Top, the locking of piston internal thread, reduce sealing ring and be pressurized for a long time, increase the service life of jack, make load safer.Double acting
Oil circuit designs, and reset speed is faster, hence it is evident that improves operating efficiency.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of internal thread mechanical caging hydraulic jack, including bottom, support column, piston rod, cylinder body, mounting seat, bottom
It is connected with cylinder body one end and forms sealing, support column is arranged in cylinder body along cylinder body axial direction, and support column one end is consolidated with bottom
Fixed and support column outer wall is less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can moved along support column central axis direction；It is living
Stopper rod inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on one of support column away from bottom
The relative position held and can be by rotation regulation in piston rod, piston rod upper end is mounting seat, when the jack is in initial
During state, inner nut contacts or is spaced less distance with support column, and when jack is in running order, piston rod is in oil pressure
Moved up under effect along support column central axis direction, inner nut rises with piston rod under piston rod drive, when arrival is set
When using height surely, it is set to be offseted with support column upper surface inner nut rotation, now the load of jack is by nut and support
Bar undertakes, and solves the problems, such as high-voltage oil liquid backflow and seal failure of the prior art.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, described piston rod will
The space of cylinder body and support intercolumniation is separated into two closed spaces, and a space is that one space of rising oil storage cylinder is to reset storage
Oil cylinder；The big volume for resetting oil storage cylinder of volume change for rising oil storage cylinder when piston rises diminishes, and rises storage when piston reset
The volume of oil cylinder, which diminishes, to be resetted the volume of oil storage cylinder and becomes big, is risen oil storage cylinder and be connected with rising oil circuit, resets oil storage cylinder and reset
Oil circuit connects, and the design of double acting oil circuit, resets reliable and stable.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, described rising oil circuit
It is arranged at oil circuit is resetted in piston rod.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, outside described piston rod
Wall one end is thicker, and one end is thinner, and the thicker one end of outer wall forms shoulder, is formed between shoulder bottom surface and bottom and rises oil storage cylinder, shoulder
Upper surface is formed with cylinder body upper port resets oil storage cylinder.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, described shoulder it is outer
Wall contacts with inboard wall of cylinder block and forms sealing, and shoulder inwall and support column wall contacts simultaneously form sealing；The piston of thinner one end
Bar outer wall contacts with upper port inwall and forms sealing.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, described rising oil circuit
Extended downwardly along piston rod and penetrate piston rod bottom and connected with rising oil storage cylinder, risen oil circuit upper end and connected with rising oilhole；
Described reset oil circuit is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, resets oil circuit upper end with resetting
Oilhole connects.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, in addition to unbalance loading saddle
Seat, bottom bottom are connected with unbalance loading saddle, and further, described bottom bottom surface has arc-shaped concave, at arc-shaped concave center
Position has mounting groove, and unbalance loading saddle upper surface has the arc convex being adapted to bottom bottom surface, and arc convex center is consolidated
Surely there is unbalance loading fix bar, the mounting groove of bottom is inserted in unbalance loading fix bar upper end, and the unbalance loading that can be born reaches the specified carrying energy of hydraulic cylinder
The 5% of power.
As a kind of preferred scheme of internal thread mechanical caging hydraulic jack of the present invention, described outer wall of cylinder block
Two suspension ring are symmetrically arranged with, are convenient for carrying use.
Beneficial effect：
, can long term support load after nut check 1. piston internal thread locks；
2. the unbalance loading that can be born reaches the 5% of hydraulic cylinder rated capacity；
It is small volume, in light weight, easy movement, easy to operate in small space 3. strong design；
4. double acting oil circuit designs, reset reliable and stable.
Brief description of the drawings
Fig. 1 is hydraulic jack (reset state) schematic cross-section of preferable case in embodiment 1.
Fig. 2 is hydraulic jack (rising one end distance) schematic cross-section of preferable case in embodiment 1
Wherein：
1st, cylinder body 2, support column 3, bottom 4, piston rod 4.1, shoulder 4.2, rising oil storage cylinder 4.3, reset oil storage
Cylinder 4.4, rise oil circuit 4.5, reset oil circuit 4.6, rise oilhole 4.7, reset oilhole 5, inner nut 6, mounting seat 7, partially
Carry saddle 7.1, unbalance loading fix bar
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in figure 1, a kind of preferably internal thread mechanical caging hydraulic jack roof construction, including cylinder body 1, cylinder body 1 is in two
The hollow barrel-type structure of end opening, support column 2 are fixed on the center of bottom 3, lower port fixation and shape of the bottom 3 with cylinder body 1
Into sealing structure, such support column is contained in the inside of cylinder body, and piston rod 4, the outer wall one end of piston rod 4 are arranged with outside support column
Thicker one end is thinner, and the thicker one end of outer wall forms shoulder 4.1, is formed between the bottom surface of shoulder 4.1 and bottom and rises oil storage cylinder 4.2,
Shoulder upper surface and cylinder body upper port, which are formed, resets oil storage cylinder 4.3, the inwall of shoulder 4.1 be in close contact with piston rod outer wall to be formed it is close
Envelope, in order to improve sealing effectiveness, it is provided with seal at shoulder inwall and shoulder outer wall, seal can be sealing ring, close
The structures such as strip of paper used for sealing.
Internal thread is distributed with a part for piston rod inwall, has the internal diameter of female thread portion outer slightly larger than support column
Wall, so internal thread will not rub with support column during piston rod 4 moves up and down.Inner nut is equipped with piston rod
5, inner nut 5 has the external screw thread being adapted to the internal thread of piston rod, and inner nut 5 can be adjusted in piston rod 4 by rotation
Position.
The piston rod of thinner one end passes cylinder body upper port and is in close contact to form sealing with cylinder body upper port inwall.Piston
Bar upper end sets mounting seat 6, hollow out and its internal diameter is more than piston rod internal diameter in the middle part of mounting seat.
Due to the inwall and support column sealing of the shoulder of underpart of the piston rod, outer wall and the cylinder body of shoulder seal, and work as piston rod
Upwards motion after, between piston rod bottom and low bar top formed rise oil storage cylinder 4.2, and shoulder top with cylinder body
Formed between port and reset oil storage cylinder 4.3, be distributed with the body of rod of piston rod and rise oil circuit 4.4 and reset oil circuit 4.5, rise oil
Road 4.4 extends downwardly along piston rod and penetrates piston rod bottom and connected with rising oil storage cylinder, rises the upper end of oil circuit 4.4 with rising oil
Hole 4.6 connects；Described reset oil circuit 4.5 is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, is resetted
Oil circuit upper end connects with resetting oilhole 4.7.
When needing to use jack, press-in liquid-working-medium in oil storage cylinder 4.2 is ramped up by rising oilhole 4.6,
Liquid-working-medium jacks up piston rod 4 upwards, and now resets oilhole 4.7 and also open, and resets the liquid work in oil storage cylinder 4.3
Make medium through reset oilhole 4.7 discharge, when rise to need position when, close rise oilhole 4.6 and reset oilhole 4.7.Upper
During rising, inner nut 5 rises a segment distance with piston rod 4, and now rotating inner nut 5 makes itself and support column upper surface phase
Support, now only inner nut 5 and the stress of support column 2, can shift and rise oil storage cylinder with resetting oil storage cylinder and rising oilhole, reset
The pressure of oilhole, load can be supported for a long time after inner nut locking, reduce sealing ring and be pressurized for a long time, extend jack use
In the life-span, change the drawbacks of existing jack is unable to long term support.And when jack need not be used, it is only necessary to by inner nut 5
Home is rotated to, then opens and rises oilhole 4.6 and reset oilhole 4.7, by resetting oilhole 4.7 to reset oil storage cylinder
4.3 pressurizations, and rise oil storage cylinder 4.2 and take out from inside to outside, so double oil circuit designs, reset speed is faster, hence it is evident that improves operating efficiency.
It is unfinished easy to operation, rise oilhole 4.6 and reset oilhole 4.7 and design the position passed in piston rod outside cylinder body.Outside cylinder body
Wall is also symmetrically arranged with two suspension ring, convenient use and carrying.
The bottom surface of bottom 3 has arc-shaped concave, has mounting groove, the upper table mask of unbalance loading saddle 7 in arc-shaped concave center
There is the arc convex being adapted to bottom bottom surface, arc convex center is fixed with unbalance loading fix bar 7.1, unbalance loading fix bar upper end
The mounting groove of bottom is inserted, the unbalance loading that can be born reaches the 5% of hydraulic cylinder rated capacity.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
It should include within the scope of the present invention.
Claims (10)
1. a kind of internal thread mechanical caging hydraulic jack, including bottom, support column, piston rod, cylinder body, mounting seat, bottom with
Cylinder body one end is connected and forms sealing, and support column is arranged in cylinder body along cylinder body axial direction, and support column one end is fixed with bottom
And support column outer wall is less than inboard wall of cylinder block；Piston rod is arranged on the support columns and can moved along support column central axis direction；Piston
Bar inner wall section has internal thread and is equipped with the inner nut being adapted to therewith, and inner nut is arranged on the one end of support column away from bottom
And can be by rotating relative position of the regulation in piston rod, piston rod upper end is mounting seat.
2. internal thread mechanical caging hydraulic jack according to claim 1, it is characterised in that：Described piston rod is by cylinder
The space of body and support intercolumniation is separated into two closed spaces, and a space is that one space of rising oil storage cylinder is to reset oil storage
Cylinder；The big volume for resetting oil storage cylinder of volume change for rising oil storage cylinder when piston rises diminishes, and rises oil storage when piston reset
The volume of cylinder, which diminishes, to be resetted the volume of oil storage cylinder and becomes big, is risen oil storage cylinder and be connected with rising oil circuit, it is oily with reset to reset oil storage cylinder
Road connects.
3. internal thread mechanical caging hydraulic jack according to claim 2, it is characterised in that：Described rising oil circuit and
Oil circuit is resetted to be arranged in piston rod.
4. internal thread mechanical caging hydraulic jack according to claim 2, it is characterised in that：Described piston rod outer wall
One end is thicker, and one end is thinner, and the thicker one end of outer wall forms shoulder, is formed between shoulder bottom surface and bottom and rises oil storage cylinder, on shoulder
Surface is formed with cylinder body upper port resets oil storage cylinder.
5. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：The outer wall of described shoulder
Contacted with inboard wall of cylinder block and form sealing, shoulder inwall and support column wall contacts simultaneously form sealing；The piston rod of thinner one end
Outer wall contacts with upper port inwall and forms sealing.
6. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：Described rising oil circuit edge
Piston rod extends downwardly and penetrates piston rod bottom and connected with rising oil storage cylinder, rises oil circuit upper end and is connected with rising oilhole；Institute
The reset oil circuit stated is extended downwardly along piston rod and connected with the reset oil storage cylinder on shoulder top, resets oil circuit upper end with resetting oil
Hole connects.
7. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：Also include unbalance loading saddle,
Bottom bottom is connected with unbalance loading saddle.
8. internal thread mechanical caging hydraulic jack according to claim 7, it is characterised in that：Described bottom bottom surface tool
There is arc-shaped concave, there is mounting groove in arc-shaped concave center, unbalance loading saddle upper surface has the arc being adapted to bottom bottom surface
Shape convex surface, arc convex center are fixed with unbalance loading fix bar, and the mounting groove of bottom is inserted in unbalance loading fix bar upper end.
9. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：Described outer wall of cylinder block pair
Title is provided with two suspension ring.
10. internal thread mechanical caging hydraulic jack according to claim 4, it is characterised in that：Described bottom and branch
Dagger is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080172.4A CN107720598A (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080172.4A CN107720598A (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107720598A true CN107720598A (en) | 2018-02-23 |
Family
ID=61221741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711080172.4A Withdrawn CN107720598A (en) | 2017-11-06 | 2017-11-06 | A kind of internal thread mechanical caging hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107720598A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407125A (en) * | 2019-08-23 | 2019-11-05 | 嘉兴爱华机械股份有限公司 | A kind of hydraulic lifting jack |
| CN111017785A (en) * | 2019-12-16 | 2020-04-17 | 广东志成电液科技有限公司 | Energy-saving hydraulic cylinder for reciprocating lifting action and control method thereof |
| CN114032711A (en) * | 2021-12-22 | 2022-02-11 | 济南海依兰机电液压有限公司 | Ballastless track structure foundation settlement repairing method |
| WO2022134719A1 (en) * | 2020-12-23 | 2022-06-30 | 库卡机器人(广东)有限公司 | Jacking device |
-
2017
- 2017-11-06 CN CN201711080172.4A patent/CN107720598A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407125A (en) * | 2019-08-23 | 2019-11-05 | 嘉兴爱华机械股份有限公司 | A kind of hydraulic lifting jack |
| CN111017785A (en) * | 2019-12-16 | 2020-04-17 | 广东志成电液科技有限公司 | Energy-saving hydraulic cylinder for reciprocating lifting action and control method thereof |
| CN111017785B (en) * | 2019-12-16 | 2023-08-22 | 广东志成电液科技有限公司 | Energy-saving hydraulic cylinder for reciprocating lifting |
| WO2022134719A1 (en) * | 2020-12-23 | 2022-06-30 | 库卡机器人(广东)有限公司 | Jacking device |
| CN114032711A (en) * | 2021-12-22 | 2022-02-11 | 济南海依兰机电液压有限公司 | Ballastless track structure foundation settlement repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107720598A (en) | A kind of internal thread mechanical caging hydraulic jack | |
| CN207418181U (en) | A kind of external screw thread mechanical caging double-action hydraulic jack | |
| CN202201677U (en) | Difunctional mechanically self-locking jack | |
| CN207390900U (en) | A kind of internal thread mechanical caging hydraulic jack | |
| CN204664046U (en) | A kind of compression type environmental sanitation boats and ships Double Acting Telescopic Hydraulic Cylinder | |
| CN214036341U (en) | Screw rod boosting type hydraulic oil cylinder | |
| CN206174899U (en) | Arrow formula drilling tool floating valve for oil drilling | |
| CN206569053U (en) | Residential quarters are emergent to move car device | |
| CN101275555A (en) | Hollow structure valve core for reciprocating pump in-out one-way valve set | |
| CN205638502U (en) | Floated hydraulic column | |
| CN201144707Y (en) | Double telescopic suspension type hydraulic prop | |
| CN107521472A (en) | Residential quarters are emergent to move car device | |
| CN202789460U (en) | Oil pump preventing gas | |
| CN201666237U (en) | Treadle type hydraulic pump | |
| CN205895939U (en) | Special efficient speciality bearing puncher of bearing processing | |
| CN208311357U (en) | One kind having the dust-proof motor-driven jack bracket of buffer structure both legs support type | |
| CN206244320U (en) | Piston self-locking type hydraulic jack | |
| CN207131373U (en) | Board-like float valve | |
| CN204664266U (en) | Horizontal oil-gas does not separate buffer | |
| CN205689186U (en) | Down-hole pressure adjusting means | |
| CN205222570U (en) | Steel shotcrete axle power self compensating system 500 tonne jack | |
| CN220319989U (en) | Double-acting thread self-locking hydraulic cylinder | |
| CN2477809Y (en) | Hydraulic shock reduction anti-dropping appts. | |
| CN201460920U (en) | Monomer hydraulic support post for mine | |
| CN202833417U (en) | Jacking hydraulic cylinder in dumper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180223 |