CN107150973A - Anti-rotation nut check jacking cylinder - Google Patents
Anti-rotation nut check jacking cylinder Download PDFInfo
- Publication number
- CN107150973A CN107150973A CN201710498114.7A CN201710498114A CN107150973A CN 107150973 A CN107150973 A CN 107150973A CN 201710498114 A CN201710498114 A CN 201710498114A CN 107150973 A CN107150973 A CN 107150973A
- Authority
- CN
- China
- Prior art keywords
- screw thread
- cylinder body
- circular
- hole
- stick harness
- 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.)
- Pending
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Abstract
The present invention announces a kind of anti-rotation nut check jacking cylinder, belongs to hydraulic lifting technical field.Including cylinder body, screw thread stick harness and locking nut；Screw thread stick harness lower end is provided with blind round hole, and screw thread stick harness upper end is provided with the square blind hole communicated with blind round hole；Cylinder base is provided with installation through-hole；Circular pillar is slidably fitted with blind round hole, circular lower rod end is arranged in cylinder body installation through-hole, and circular pillar upper end is fixed with square block；Sealing ring II is installed in blind round hole；Sealing ring III is installed between circular lower rod end and cylinder body；Sealing ring I is installed on square block；Oily passage was provided with circular pillar axle center, excessively oily passage upper end is communicated in square blind hole；The hydraulic fluid port II for being communicated to oily passage is provided with cylinder body lower end side.Invention increases the backhaul oil circuit to screw thread stick harness return pressure oil, the hydraulic pressure backhaul of screw thread stick harness is realized, the service efficiency of hydraulic jack is improved；Increase anti-rotation structure, prevent screw thread stick harness from rotating.
Description
Technical field
The present invention relates to hydraulic lifting technical field, specifically a kind of anti-rotation nut check jacking cylinder.
Background technology
Application of the hydraulic jack in engineering construction is more and more extensive, especially bridge construction industry, relative to machinery top
Rise, with higher energy density and jacking ability, but secure context is difficult to ensure, therefore must among practical application
It must reduce operating efficiency by means of solid block as security protection, improve cost.
The appearance of nut check oil cylinder efficiently solves this problem, and hydraulic jack passes through oil after jacking is completed
Nut check plunger at the top of cylinder is prevented because the load that pressure, leakage etc. are surprisingly brought occurs in hydraulic pressure there is provided mechanical protection
The problem of whereabouts.But the plunger upper part of nut check oil cylinder must process screw thread and nut and coordinate, therefore oil cylinder have bar
Chamber is difficult to make sealed hydraulic chamber, it is impossible to realize hydraulic pressure backhaul, can only limit nut check hydraulic jack by load backhaul
Service efficiency.Further, since plunger upper part has screw thread, the anti-rotation structure of plunger sets inconvenience.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of anti-rotation nut check jacking cylinder.
The present invention is achieved through the following technical solutions：A kind of anti-rotation nut check jacking cylinder, including cylinder body and installation
Screw thread stick harness in cylinder body upper end；Cylinder body lower end side is provided with the hydraulic fluid port I of connection inner chamber of cylinder block；Pacify on the screw thread stick harness
Equipped with locking nut；
The thread plug axis of a cylinder heart lower end is provided with blind round hole, and thread plug axis of a cylinder is held in the heart is provided with communicated with blind round hole square
Blind hole, square blind hole turning is connected by arc transition；The cylinder base axle center is provided with installation through-hole；In the blind round hole
Circular pillar is inside slidably fitted with, circular lower rod end is arranged in cylinder body installation through-hole, and circular pillar upper end is fixed with cooperation
It is slidably mounted on the square block of square blind hole；Sealing ring II with circular stanchions is installed in the blind round hole；It is described
Sealing ring III is installed between circular lower rod end and cylinder body；
The sealing ring I coordinated with square blind hole is installed on the square block；Oily passage was provided with the circular pillar axle center,
Oily passage upper end is crossed to be communicated in square blind hole；It is provided with cylinder body lower end side and is communicated to excessively oily passage in circular pillar
Hydraulic fluid port II.
It is further：The circular lower rod end is provided with the shelves platform coordinated with cylinder base, and circular lower rod end is provided with
External screw thread；There is the circle for being provided with one section of counterbore, counterbore and being arranged on circular lower rod end the circular pillar installation through-hole lower end
Backing plate and attaching nut；The axial sealing ring that the circular shim upper surface coordinates with counterbore base, the periphery of circular shim
Provided with the sealing ring IV coordinated with counterbore inwall.
Two boosting-rods positioned opposite are hinged with the locking nut circumference.
The screw thread stick harness upper end, which is provided with neck, screw thread stick harness neck, is provided with saddle.
The saddle upper end is provided with the rag provided with clathrate.
Compared with prior art, the present invention has advantages below：Add the return oil to screw thread stick harness return pressure oil
Road, realizes the hydraulic pressure backhaul of screw thread stick harness, improves the service efficiency of hydraulic jack；Increase anti-rotation structure, prevent screw thread stick harness
Rotate.
Brief description of the drawings
Fig. 1 is inventive structure schematic diagram；
Fig. 2 is the enlarged drawing at A in Fig. 1.
In figure：1st, cylinder body；1-1, installation through-hole；1-2, hydraulic fluid port I；1-3, hydraulic fluid port II；1-4, counterbore；2nd, screw thread stick harness；2-
1st, blind round hole；2-2, square blind hole；3rd, locking nut；4th, circular pillar；5th, square block；6th, sealing ring I；7th, sealing ring II；
8th, sealing ring III；9th, sealing ring IV；10th, circular shim；11st, attaching nut；12nd, axial sealing ring；13rd, boosting-rod；14th, saddle
Seat.
Embodiment
The following is the specific embodiment of the present invention, in conjunction with accompanying drawing, the present invention will be further described.
As depicted in figs. 1 and 2, a kind of anti-rotation nut check jacking cylinder, including cylinder body 1 and installed in the upper end of cylinder body 1
Screw thread stick harness 2, screw thread stick harness 2 slides up and down along cylinder body 1.The lower end side of cylinder body 1 is provided with the 1- of hydraulic fluid port I of connection cylinder body 1 inner chamber
2, the 1-2 of hydraulic fluid port I are passed through hydraulic oil, jack-up screw thread stick harness 2.Locking nut 3 is installed, screw thread stick harness 2 rises on screw thread stick harness 2
Afterwards, positioned by locking nut 3.Two boosting-rods 13 positioned opposite are hinged with the circumference of locking nut 3.Screw thread stick harness 2
Upper end, which is provided with neck, the neck of screw thread stick harness 2, is provided with saddle 14.The upper end of saddle 14 is provided with the rag provided with clathrate.
The axle center lower end of screw thread stick harness 2 is provided with blind round hole 2-1, and the axle center upper end of screw thread stick harness 2 is provided with to be communicated with blind round hole
Square blind hole 2-2, square blind hole 2-2 turnings are connected by arc transition.The bottom axle center of cylinder body 1 is provided with installation through-hole 1-1；
Circular pillar 4 is slidably fitted with blind round hole 2-1, the circular lower end of pillar 4 is arranged in the installation through-hole 1-1 of cylinder body 1, circle branch
The upper end of post 4 is fixed with the square block 5 for coordinating and being slidably mounted on square blind hole 2-2；It is provided with blind round hole 2-1 and circular pillar
4 sealing rings II 7 coordinated；Sealing ring III 8 is installed between the circular lower end of pillar 4 and cylinder body 1.Screw thread stick harness 2 can be along circle
Shape pillar 4 is slided up and down, under the cooperation of the square blind hole 2-2 of screw thread stick harness 2 and square block 5, to prevent screw thread stick harness 2 from rotating,
To protect each sealing ring；Also the upper end of screw thread stick harness 2 can be prevented due to rotation, and with occurring relative motion by jack-up part, it is ensured that
The security used.
Hydraulic pressure backhaul is added in anti-rotation nut check jacking cylinder.Oily passage 4- was provided with the circular axle center of pillar 4
1, excessively oily passage 4-1 upper and lower sides are communicated to outside by multiple holes；Oil passage 4-1 upper ends are crossed to be communicated in square blind hole 2-2；
The lower end side of cylinder body 1 is provided with the 1-3 of hydraulic fluid port II for being communicated to excessively oily passage 4-1 in circular pillar 4.Controlled by the 1-3 of hydraulic fluid port II
The decline of screw thread stick harness 2.The sealing ring I 6 coordinated with square blind hole 2-2 is installed, to ensure in screw thread stick harness 2 on square block 5
The sealing of oil pocket.The circular lower end of pillar 4 is provided with the shelves platform coordinated with the bottom of cylinder body 1, and shelves platform plays positioning and spacing effect.
There is one section of counterbore 1-4 the circular installation through-hole 1-1 lower ends of pillar 4；The circular lower end of pillar 4 is provided with external screw thread, and the circular lower end of pillar 4 is worn
Enter in counterbore 1-4；The circular shim 10 for being arranged on the circular lower end of pillar 4 and attaching nut 11 are provided with counterbore 1-4；Circular shim
The axial sealing ring 12 that 10 upper surfaces coordinate with counterbore 1-4 bottoms, the periphery of circular shim 10 is provided with matches somebody with somebody with counterbore 1-4 inwalls
The sealing ring IV 9 of conjunction；Attaching nut 11 is used to position circular pillar 4, is also used for compressing circular shim 10.
During work,
The 1-2 of hydraulic fluid port I is to the fuel feeding of cylinder body 1, as hydraulic pressure is raised, and screw thread plunger 2 rises, the load top supported by saddle 14
Rise, reach adjustment locking nut 3 after predetermined altitude and position, screw thread plunger 2 is lock onto cylinder body 1, safety protection function is played；Together
When, the hydraulic oil in screw thread stick harness 2 passes through circular pillar 4, the 1-3 oil returns of hydraulic fluid port II；
After the completion of lifting operation, adjustment unscrews locking nut 3, and the 1-3 of hydraulic fluid port II is to the fuel feeding of screw thread stick harness 2；Oil mass in screw thread stick harness 2
Increase, pressure rise, screw thread plunger 2 is pushed；Hydraulic oil in cylinder body 1 realizes hydraulic pressure backhaul by the 1-2 oil returns of hydraulic fluid port I.
Claims (5)
1. a kind of anti-rotation nut check jacking cylinder, including cylinder body（1）With installed in cylinder body（1）The screw thread stick harness of upper end（2）；
The cylinder body（1）Lower end side is provided with connection cylinder body（1）The hydraulic fluid port I of inner chamber（1-2）；The screw thread stick harness（2）On lock is installed
Tight nut（3）；
It is characterized in that：
The screw thread stick harness（2）Axle center lower end is provided with blind round hole（2-1）, screw thread stick harness（2）Axle center upper end is provided with blind with circle
The square blind hole that hole is communicated（2-2）, square blind hole（2-2）Turning is connected by arc transition；The cylinder body（1）Open in bottom axle center
There is installation through-hole（1-1）；In the blind round hole（2-1）Inside it is slidably fitted with circular pillar（4）, circular pillar（4）Pacify lower end
Mounted in cylinder body（1）Installation through-hole（1-1）It is interior, circular pillar（4）Upper end is fixed with cooperation and is slidably mounted on square blind hole（2-2）'s
Square block（5）；The blind round hole（2-1）Inside it is provided with and circular pillar（4）The sealing ring II of cooperation（7）；The circular branch
Post（4）Lower end and cylinder body（1）Between sealing ring III is installed（8）；
The square block（5）On be provided with and square blind hole（2-2）The sealing ring I of cooperation（6）；In the circular pillar（4）Axle
The heart was provided with oily passage（4-1）, excessively oily passage（4-1）Upper end is communicated to square blind hole（2-2）It is interior；In the cylinder body（1）Lower end
Side, which is provided with, is communicated to circular pillar（4）Middle excessively oily passage（4-1）Hydraulic fluid port II（1-3）.
2. anti-rotation nut check jacking cylinder according to claim 1, it is characterised in that：The circular pillar（4）Under
End is provided with and cylinder body（1）The shelves platform that bottom coordinates, circular pillar（4）Lower end is provided with external screw thread；The circular pillar（4）Install logical
Hole（1-1）There is one section of counterbore lower end（1-4）, counterbore（1-4）Interior be provided with is arranged on circular pillar（4）The circular shim of lower end（10）
And attaching nut（11）；The circular shim（10）Upper surface and counterbore（1-4）The axial sealing ring that bottom coordinates（12）, it is circular
Backing plate（10）Periphery be provided with and counterbore（1-4）The sealing ring IV that inwall coordinates（9）.
3. anti-rotation nut check jacking cylinder according to claim 1, it is characterised in that：The locking nut（3）Circle
Two boosting-rods positioned opposite are hinged with week（13）.
4. anti-rotation nut check jacking cylinder according to claim 1, it is characterised in that：The screw thread stick harness（2）On
End is provided with neck, screw thread stick harness（2）Saddle is provided with neck（14）.
5. anti-rotation nut check jacking cylinder according to claim 4, it is characterised in that：The saddle（14）Open upper end
There is the rag provided with clathrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498114.7A CN107150973A (en) | 2017-06-27 | 2017-06-27 | Anti-rotation nut check jacking cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710498114.7A CN107150973A (en) | 2017-06-27 | 2017-06-27 | Anti-rotation nut check jacking cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107150973A true CN107150973A (en) | 2017-09-12 |
Family
ID=59795218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710498114.7A Pending CN107150973A (en) | 2017-06-27 | 2017-06-27 | Anti-rotation nut check jacking cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107150973A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035937A (en) * | 2018-01-09 | 2018-05-15 | 嘉兴新维液压缸有限公司 | A kind of oil cylinder of double locking |
-
2017
- 2017-06-27 CN CN201710498114.7A patent/CN107150973A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035937A (en) * | 2018-01-09 | 2018-05-15 | 嘉兴新维液压缸有限公司 | A kind of oil cylinder of double locking |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201228688Y (en) | Self locking oil cylinder | |
| CN100535394C (en) | Suspension type hydraulic prop | |
| CN107150973A (en) | Anti-rotation nut check jacking cylinder | |
| CN207144953U (en) | The pre-buried channel flow that a kind of high ferro uses | |
| CN202139533U (en) | Ball-shaped height-adjusting support | |
| CN204942620U (en) | A kind of Novel integral multi-way valve | |
| CN210397073U (en) | Cooperation structure of slush pump disk seat and hydraulic cylinder | |
| CN202300431U (en) | Reinforced hydraulic prop | |
| CN204061403U (en) | Automated backhaul nut check hydraulic jack | |
| CN104154070A (en) | Double-acting nut-locking hydrocylinder | |
| CN204805279U (en) | Blind nut | |
| CN201074618Y (en) | Work oil cylinder of crusher | |
| CN213684371U (en) | Oil way communication structure of single-ripple elastic oil tank base | |
| CN205442459U (en) | General's column crane upper portion bearing arrangement | |
| CN1757937A (en) | Radial swing cylinder plunger hydraulic motor | |
| CN215041848U (en) | Automobile hub bearing fastener | |
| CN206309524U (en) | A kind of plunger with bearing shell being applied in plunger hydraulic motor | |
| CN102530765A (en) | Vertical oil pressure jack with central oil storage chamber | |
| CN202446859U (en) | Connecting structure for fixing dynamic axial compression column | |
| CN2874023Y (en) | Suspension type hydraulic pillar | |
| CN217923482U (en) | Supporting device is used in hydraulic and hydroelectric engineering construction | |
| CN206017305U (en) | High-pressure liquid-filling valve | |
| CN205078543U (en) | A rotatory hydro -cylinder for levelling machine | |
| CN205001286U (en) | Component assembly structure is adorned soon to hydro -cylinder | |
| CN201265421Y (en) | Mono-block hydraulic prop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170912 |