CN207470525U - Steel ball mechanical locking device before and after a kind of hydraulic cylinder - Google Patents
Steel ball mechanical locking device before and after a kind of hydraulic cylinder Download PDFInfo
- Publication number
- CN207470525U CN207470525U CN201721318430.3U CN201721318430U CN207470525U CN 207470525 U CN207470525 U CN 207470525U CN 201721318430 U CN201721318430 U CN 201721318430U CN 207470525 U CN207470525 U CN 207470525U
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- CN
- China
- Prior art keywords
- preposition
- postposition
- piston rod
- steel ball
- plug cock
- 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.)
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Abstract
Steel ball mechanical locking device before and after a kind of hydraulic cylinder, including piston rod, preposition steel ball, postposition steel ball are installed on the piston rod annular groove, piston rod annular groove is filled in preposition trip, postposition trip plug clearance fit, through-hole is for installing steel ball on piston rod, annular groove is to fill in the conical surface for front and rear trip to be smoothly inserted into, and preposition trip is beyond the Great Wall equipped with the sealing ring with piston rod, cylinder inner bore fitted seal；Postposition trip is beyond the Great Wall equipped with the sealing ring sealed with cylinder barrel inner hole；The preposition spring of compressibility is housed between drive end bearing bracket and preposition trip plug；The rear spring of compressibility is housed between back cylinder cover and postposition trip plug；Front and rear hydraulic fluid port is located at the through-hole top before and after piston rod；Front and rear hydraulic fluid port into oil road with hydraulic system through being connected.The utility model locking mode uses mechanical lock, and locking effect is safe and reliable；And simple in structure, product easy processing.
Description
Technical field
The utility model is related to steel ball mechanical locks before and after a kind of hydraulic cylinder field more particularly to a kind of hydraulic cylinder to fill
It puts.
Background technology
Hydraulic cylinder be hydraulic energy is changed into mechanical energy, the hydraulic pressure that does straight reciprocating motion (or pendulum motion) performs member
Part, its simple in structure, reliable operation when realizing reciprocating motion, can remove deceleration device from, and do not have drive gap with it,
Stable movement, therefore be used widely in the hydraulic system of various machineries, in equipment in use, often requiring that oil cylinder is in office
Meaning output services position is reliably locked, and remains fixed position for a long time, and at present, well known hydraulic cylinder will be expert at end after Cheng Qian
It realizes locking state, locking is realized by using the mode in hydraulic cylinder oil port installation bidirectional hydraulic lock, however bidirectional hydraulic
If outer oil leak or internal leakage occurs in lock, then hydraulic cylinder can not realize locking, it is seen that two-way using being installed in hydraulic cylinder oil port
The mode of hydraulic lock realizes that the mode of locking is not safe and reliable.
Invention content
To solve above-mentioned technological deficiency, steel ball mechanical lock fills before and after the utility model provides a kind of hydraulic cylinder
It puts, makes locking effect more safe and reliable.
Technical solution is used by the utility model solves its technical problem：Steel ball mechanical lock before and after a kind of hydraulic cylinder
Tight device, it is characterised in that：Including piston rod, the piston rod both ends of the surface are annular groove, are equipped in both ends of the surface outer circle
Through-hole is 12 or 12 or more, and the front end of the piston rod is provided with the annular groove being adapted with preposition trip plug, after
End is provided with the annular groove being adapted with postposition trip plug, and the front end endoporus of the piston rod is provided with the spiral shell being adapted with earrings
Line, the piston rod front end face annular groove through-hole and preposition steel ball clearance fit are installed, rear end face annular groove through-hole with
Postposition steel ball clearance fit is installed, and preposition hydraulic fluid port and postposition hydraulic fluid port is fixedly connected in the cylinder barrel outer circle, before described
It puts hydraulic fluid port to be located above piston rod front through hole, the postposition hydraulic fluid port is located at through-hole top after piston rod, the preposition hydraulic fluid port
It is connected with postposition hydraulic fluid port through oil-through hole and hydraulic system, the cylinder barrel endoporus front end is provided with what preposition plug cock was adapted
Positioning step, the cylinder barrel endoporus rear end are provided with the positioning step that postposition trip plug is adapted, preposition trip plug peace
Between cylinder barrel endoporus and piston rod outer wall, the preposition trip is equipped with close with cylinder barrel endoporus and piston rod cooperation beyond the Great Wall
The sealing ring of envelope, postposition trip plug are mounted on cylinder barrel endoporus, and postposition trip is equipped with beyond the Great Wall matches with cylinder barrel endoporus
The sealing ring of sealing is closed, the front end of the cylinder barrel is connect with front end housing, and the rear end of the cylinder barrel is connect with back cylinder cover,
Preposition spring is provided between the front end housing and preposition trip plug, postposition is provided between the back cylinder cover and postposition trip plug
Spring.
Preferred embodiment as the utility model：The gap of the piston rod and cylinder barrel inner wall is clearance fit H8/
F7,
Preferred embodiment as the utility model：The preposition trip plug, postposition trip are filled in for the circumference conical surface, the piston burr
Connected in star is filled in preposition trip, the postposition trip plug circumference conical surface is clearance fit.
Preferred embodiment as the utility model：The cylinder barrel inner wall is respectively set with preposition hydraulic fluid port and postposition hydraulic fluid port junction
It is equipped with the annular groove of one of R5.1.
Preferred embodiment as the utility model：It is provided between the piston rod and earrings by tight device.
Preferred embodiment as the utility model：The preposition steel ball, postposition steel ball are ￠ 10mm specification steel balls.
Preferred embodiment as the utility model：The preposition spring, the output of rear spring spring force ＜ hydraulic systems are high
Hydraulic fluid oil pressure.
Preferred embodiment as the utility model：The light that the cylinder barrel inner wall is filled in piston rod, preposition trip plug, postposition trip
Cleanliness is Ra0.4.
The beneficial effects of the utility model are：
Using steel ball mechanical locking device before and after a kind of hydraulic cylinder of the utility model, locking mode uses mechanical lock
Tightly, locking effect is safe and reliable；
Steel ball mechanical locking device before and after a kind of hydraulic cylinder of the utility model, it is simple in structure, it is easily worked.
Description of the drawings
Fig. 1 is the structure diagram of the utility model（It is in the unlocked state that piston rod operates in middle-end）.
Fig. 2 is the structure diagram of the utility model（Piston rod movement is in locking state to front end）.
Fig. 3 is the structure diagram of the utility model（Piston rod runs to rear end and is in locking state）.
Fig. 4 is the structure diagram of the utility model cylinder barrel.
Fig. 5 is the structure diagram of the utility model piston rod.
Fig. 6 is Fig. 5 piston rod sectional views.
Fig. 7 is the utility model locking state partial enlarged view.
Fig. 8 is the utility model postposition trip plug structure schematic diagram.
Fig. 9 is the preposition trip plug structure schematic diagram of the utility model.
In figure：1st, earrings, 2, by tight nut, 3, front end housing, 4, preposition spring, 5, preposition plug cock, 6, preposition hydraulic fluid port, 7, cylinder
Cylinder, 8, piston rod, 9, preposition steel ball, 10, postposition steel ball, 11, postposition hydraulic fluid port, 12, postposition plug cock, 13, rear spring, 14,
Back cylinder cover.
Specific embodiment
Presently in connection with attached drawing, the technical scheme in the utility model embodiment is clearly and completely described, this figure is
Simplified schematic diagram only illustrates the basic structure of the utility model in a schematic way.
According to Fig. 1, steel ball mechanical locking device before and after a kind of hydraulic cylinder of the utility model, including piston rod 8,
The front end of the piston rod 8 is provided with the annular groove being adapted with preposition plug cock 5, and rear end is provided with to be adapted with cylinder barrel 7
Annular groove, the front end endoporus of the piston rod 8 is provided with the screw thread being adapted with earrings 1,8 front end face of piston rod
Annular groove through-hole is installed with preposition 9 clearance fit of steel ball, and rear end face annular groove through-hole is pacified with 10 clearance fit of postposition steel ball
It fills, is fixedly connected with preposition hydraulic fluid port 6 and postposition hydraulic fluid port 11 in 7 outer circle of cylinder barrel, the preposition hydraulic fluid port 6 is located at piston
Above 8 front through hole of bar, the postposition hydraulic fluid port 11 is located at through-hole top, the preposition hydraulic fluid port 6 and postposition hydraulic fluid port after piston rod
11 are connected through oil-through hole and hydraulic system, and the 7 endoporus front end of cylinder barrel is provided with the positioning that preposition plug cock 5 is adapted
Step, the 7 endoporus rear end of cylinder barrel are provided with the positioning step that postposition plug cock 12 is adapted, and the preposition plug cock 5 is pacified
Between 8 outer wall of 7 endoporus of cylinder barrel and piston rod, it is equipped with and 7 endoporus of cylinder barrel and piston rod 8 on the preposition plug cock 5
The sealing ring of fitted seal, the postposition plug cock 12 are mounted on 7 endoporus of cylinder barrel, be equipped on the postposition plug cock 12 with
The sealing ring of 7 inner hole of cylinder barrel sealing, the front end of the cylinder barrel 7 are connect with front end housing 3, the cylinder barrel 7
Rear end is connect with back cylinder cover 14, and preposition spring 4, the back cylinder cover are provided between the front end housing 3 and preposition plug cock 5
Rear spring 13 is provided between 14 and postposition plug cock 12.
It is shown according to fig. 2, when hydraulic system export high-voltage oil liquid through postposition hydraulic fluid port 11 flow into annular seal space, make piston rod 8 to
Preceding movement, piston rod 8 with it is preposition trip plug 5 contact after compress preposition spring 4, preposition spring 4 in the case of spring force, it is counter push away before
Putting trip plug 4 and moving backward makes the conical surface enter in 8 inside ringed groove of piston rod, and preposition steel ball 9 is caused to be moved to 7 inner wall of cylinder barrel
It is dynamic, preposition steel ball 9 is fixed between 7 annular groove of cylinder barrel and preposition 5 conical surface upper surfaces of trip plug, realizes locking state.
It is shown according to fig. 3, annular seal space is flowed into through preposition hydraulic fluid port 6 when hydraulic system exports high-voltage oil liquid, when high pressure oil hydraulic pressure
When power is more than preposition 4 spring force of spring, preposition trip plug 5 is forced to move forward, preposition steel ball 9 is fallen into 8 annular groove of piston rod,
Realize unlocked state, piston rod 8 will move backward, and piston rod 8 compresses rear spring 13, postposition bullet after being contacted with postposition trip plug 12
Spring 13 in the case of spring force, put trip plug 12 and move backward the conical surface is made to enter in 8 inside ringed groove of piston rod, causes by counter postpone
Postposition steel ball 10 is made to be moved to 7 inner wall of cylinder barrel, postposition steel ball 10 is fixed on 7 annular groove of cylinder barrel and 12 cone of postposition trip plug
Between the upper surface of face, locking state is realized.
According to Fig. 4,7 inner wall of cylinder barrel is provided with annular groove.In figure, a=R5.1.
According to Fig. 5,8 both ends of the surface of piston rod are annular groove, and circular through hole is equipped in both ends of the surface outer circle.
According to Fig. 6, it is 12 that the piston rod 8 is equipped with circular through hole in both ends of the surface outer circle, a=￠ in figure
10.19H11()。
According to Fig. 8, in figure, a=4, b=30 °, c=1, d=R2.
According to Fig. 9, in figure, a=4, b=30 °, c=1, d=R2.
Claims (7)
1. a kind of steel ball mechanical locking device before and after hydraulic cylinder, it is characterised in that：Including piston rod（8）, the piston rod
（8）Both ends of the surface are annular groove, and it is 12 or 12 or more that through-hole is equipped in both ends of the surface outer circle, the piston rod
（8）Front end be provided with and preposition plug cock（5）The annular groove being adapted, rear end are provided with and postposition plug cock（12）The ring being adapted
Shape slot, the piston rod（8）Front end endoporus be provided with and earrings（1）The screw thread being adapted, the piston rod（8）Front end
Face ring connected in star through-hole and preposition steel ball（9）Clearance fit is installed, rear end face annular groove through-hole and postposition steel ball（10）Gap
Cooperation installation, cylinder barrel（7）Preposition hydraulic fluid port is fixedly connected in outer circle（6）With postposition hydraulic fluid port（11）, the preposition hydraulic fluid port（6）
Positioned at piston rod（8）Above front through hole, the postposition hydraulic fluid port（11）Above through-hole after piston rod, the preposition hydraulic fluid port
（6）With postposition hydraulic fluid port（11）It is connected through oil-through hole and hydraulic system, the cylinder barrel（7）Endoporus front end is provided with preposition oil
Plug（5）The positioning step being adapted, the cylinder barrel（7）Endoporus rear end is provided with postposition plug cock（12）The positioning table being adapted
Rank, the preposition plug cock（5）Mounted on cylinder barrel（7）Endoporus and piston rod（8）Between outer wall, the preposition plug cock（5）
On be equipped with and cylinder barrel（7）Endoporus and piston rod（8）The sealing ring of fitted seal, the postposition plug cock（12）Mounted on cylinder barrel
Body（7）Endoporus, the postposition plug cock（12）On be equipped with and cylinder barrel（7）The sealing ring of inner hole sealing, the cylinder barrel
Body（7）Front end and front end housing（3）Connection, the cylinder barrel（7）Rear end and back cylinder cover（14）Connection, the front end housing
（3）With preposition plug cock（5）Between be provided with preposition spring（4）, the back cylinder cover（14）With postposition plug cock（12）Between set
There is rear spring（13）.
2. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：The work
Stopper rod（8）With cylinder barrel（7）Inner wall is clearance fit.
3. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：It is described preposition
Plug cock（5）, postposition plug cock（12）For the circumference conical surface, the piston rod（8）Annular groove and preposition plug cock（5）, postposition plug cock
（12）The circumference conical surface is clearance fit.
4. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：The piston
Bar（8）With earrings（1）Between be provided with by tight device（2）.
5. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：It is described preposition
Steel ball（9）, postposition steel ball（10）It is ￠ 10mm specification steel balls.
6. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：It is described preposition
Spring（4）, rear spring（13）Spring force ＜ hydraulic systems export high-pressure and hydraulic oil pressure.
7. steel ball mechanical locking device before and after a kind of hydraulic cylinder according to claim 1, it is characterised in that：The cylinder barrel
Body（7）Inner wall and piston rod（8）, preposition plug cock（5）, postposition plug cock（12）Finish be Ra0.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318430.3U CN207470525U (en) | 2017-10-13 | 2017-10-13 | Steel ball mechanical locking device before and after a kind of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318430.3U CN207470525U (en) | 2017-10-13 | 2017-10-13 | Steel ball mechanical locking device before and after a kind of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470525U true CN207470525U (en) | 2018-06-08 |
Family
ID=62267869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721318430.3U Expired - Fee Related CN207470525U (en) | 2017-10-13 | 2017-10-13 | Steel ball mechanical locking device before and after a kind of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470525U (en) |
-
2017
- 2017-10-13 CN CN201721318430.3U patent/CN207470525U/en not_active Expired - Fee Related
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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: 20180608 Termination date: 20201013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |