CN206754044U - A kind of cushion cylinder - Google Patents
A kind of cushion cylinder Download PDFInfo
- Publication number
- CN206754044U CN206754044U CN201720501706.5U CN201720501706U CN206754044U CN 206754044 U CN206754044 U CN 206754044U CN 201720501706 U CN201720501706 U CN 201720501706U CN 206754044 U CN206754044 U CN 206754044U
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- CN
- China
- Prior art keywords
- buffer shaft
- piston
- cylinder
- cushion
- base
- 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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
Technical field of hydraulic oil cylinder is the utility model is related to, especially a kind of cushion cylinder, including cylinder body, one end of the cylinder body are combined with cylinder cap, and the other end of cylinder body is combined with base；Piston rod and piston are provided with the cylinder body, described piston rod one end passes cylinder cap, the other end connection piston of piston rod.The piston is provided with buffer shaft towards one end of base, when piston slides to base, buffer shaft follows piston to slide and the cushion hole on inserted base, and extruding hydraulic oil is coordinated between the side face and cushion hole inwall of buffer shaft and reaches buffering, the side face of buffer shaft is provided with dashpot.The utility model is simple in construction, and cost of investment is low, and action is smooth, stably, good buffer effect, service life length.The side face of buffer shaft is provided with three dashpots of equilateral triangle distribution, forms throttling effect, avoids pressure oscillation, enhance the stability of cylinder efficient.
Description
Technical field
Technical field of hydraulic oil cylinder is the utility model is related to, especially a kind of hydraulic jack with pooling feature.
Background technology
Hydraulic jack can produce strong impact, noise even machinery touches in quick motion process in stroke terminal
Hit, especially in case of high pressures, this influence becomes apparent, and has severely impacted the service life of oil cylinder, thus necessary
Appropriate braking and buffering are carried out before terminating to move, to ensure the service life of system and oil cylinder.It is existing a kind of with slow
The hydraulic jack of function is rushed, such as Chinese patent application " hydraulic jack for improving buffering effect "（Application publication number
CN101936318A, data of publication of application：On January 5th, 2011）, being structurally characterized in that for this oil cylinder be set with circle on the piston rod
Cylindricality cushion collar, cylindrical buffer set length are less than its length on the corresponding construction section of piston rod, and cushion collar inwall is with delaying
The outer wall gap of punching set construction section coordinates, and cushion hole is provided with the cylinder cap of hydraulic jack, the rod chamber of hydraulic jack passes through this
Cushion hole connects with oil return opening, and outer wall and the cushion hole inwall gap of cylindrical buffer set coordinate, when piston rod is close to formation
During terminal, cylindrical buffer set is slipped into cushion hole, blocks oil return opening gradually, and this interior buffer unit structure is simple, small volume,
The Hydraulic Elements such as any flow control valve need not additionally be increased, thus be a kind of more satisfactory buffering method, it is still, this
Following deficiency be present in structure：1st, the length of cushion collar is less than cushion collar installation segment length, inclination can be produced in motion process, when slow
When punching set enters the cushion hole of cylinder cap, easily occur stuck；2nd, shake and creeping phenomenon in start-up course be present；3rd, buffering course
It is middle very big compression shock to be present.4th, structure is relative complex, and cost of manufacture is high, and also inconvenience is safeguarded.
The content of the invention
The purpose of this utility model is to provide a kind of cushion cylinder, simple in construction, and action is smooth, stably, buffering effect
It is good, service life length.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of cushion cylinder, including cylinder body, one end of the cylinder body are combined with cylinder cap, and the other end of cylinder body is combined with base；
Piston rod and piston are provided with the cylinder body, described piston rod one end passes cylinder cap, the other end connection piston of piston rod.Institute
State piston and be provided with buffer shaft towards one end of base, when piston slides to base, buffer shaft follows piston to slide and inserted base
On cushion hole, between the side face and cushion hole inwall of buffer shaft coordinate extruding hydraulic oil and reach buffering.
Such scheme is further：The buffer shaft is coaxially to be extended to form by piston rod.
Such scheme is further：The side face of the buffer shaft is provided with dashpot, and dashpot carries over the axial direction of buffer shaft
Extension.
Such scheme is further：The groove depth of the dashpot gradually becomes shallower as from the outer end of buffer shaft towards piston direction.
Such scheme is further：The dashpot has three, and three dashpots are in equilateral three on the side face of buffer shaft
Angular distribution.
Such scheme is further：The buffer shaft is cylinder, and the external diameter of buffer shaft is less than the cushion hole on base
Aperture, copper sheathing is provided with the port of cushion hole, and copper sleeve inner hole aperture is consistent with the external diameter of buffer shaft.
Such scheme is further：The oilhole opened up by bottom connection base side wall of the cushion hole.
The utility model is to be provided with buffer shaft towards one end of base in piston, when piston slides to base, buffer shaft with
The cushion hole on inserted base with piston slip, extruding hydraulic oil is coordinated between the side face and cushion hole inwall of buffer shaft and is reached
To buffering.Simple in construction, cost of investment is low, and action is smooth, stably, good buffer effect, service life length.
The utility model another advantage is that the side face of buffer shaft is provided with three dashpots of equilateral triangle distribution, buffering
Groove carries over the axially extending of buffer shaft, and groove depth gradually becomes shallower as, and forms throttling effect, avoids pressure oscillation, make in buffering course
Buffer speed gradually falls after rise, avoids velocity shock, enhances the stability of cylinder efficient.And three dashpots are in the week of buffer shaft
It is distributed on face in equilateral triangle, makes buffer shaft periphery stress equalization, ensures cushion hole cathetus fortune of the buffer shaft on base
It is dynamic, further protect cylinder efficient stability.
Brief description of the drawings：
Accompanying drawing 1 is the utility model preferred embodiment structural representation；
Accompanying drawing 2 is the dashpot distribution schematic diagram on the side face of the buffer shaft of Fig. 1 embodiments.
Embodiment：
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Refering to shown in Fig. 1,2, being preferred embodiment schematic diagram of the present utility model, the relevant one kind of the utility model buffers oily
Cylinder, including cylinder body 1, one end of the cylinder body 1 are combined with cylinder cap 2, and the other end of cylinder body 1 is combined with base 3, forms closed cavity.
Piston rod 4 and piston 5 are provided with the cylinder body 1, described one end of piston rod 4 passes cylinder cap 2, the other end connection of piston rod 4
Piston 5.The piston 5 is provided with buffer shaft 6 towards one end of base 3, and when piston 5 slides to base 3, buffer shaft 6 follows piston 5
Slide and the cushion hole 31 on inserted base 3, extruding hydraulic oil is coordinated between the side face and the inwall of cushion hole 31 of buffer shaft 6 and is reached
To buffering.
Fig. 1, shown in 2, in the present embodiment, the buffer shaft 6 is that coaxially extension is formed by piston rod 4, simple in construction, convenient
Make, cost of investment is low.The side face of the buffer shaft 6 is provided with dashpot 61, and the axial direction that dashpot 61 carries over buffer shaft 6 is prolonged
Stretch.The groove depth of dashpot 61 gradually becomes shallower as from the outer end of buffer shaft 6 towards the direction of piston 5.Dashpot 61 forms throttling effect, avoids
Pressure oscillation, buffer speed in buffering course is gradually fallen after rise, avoid velocity shock, enhance the stability of cylinder efficient.This
In embodiment, the dashpot 61 has three, and three dashpots 61 are distributed on the side face of buffer shaft 6 in equilateral triangle, work
In work, make the periphery stress equalization of buffer shaft 6, ensure cushion hole linear movement of the buffer shaft on base, further protection oil
Cylinder working stability.
Fig. 1, shown in 2, in the present embodiment, the buffer shaft 6 is cylinder, and the external diameter of buffer shaft 6 is less than slow on base 3
The aperture of punching 31, copper sheathing 7 is provided with the port of cushion hole 31, and the endoporus aperture of copper sheathing 7 is consistent with the external diameter of buffer shaft 6.The knot
The convenient processing of structure and assembling, copper sheathing 7 play correcting effect, enable the cushion hole 31 on the automatic capturing inserted base 3 of buffer shaft 6,
It is softer additionally, due to the quality of copper sheathing 7, cushioning effect is served, can also avoid the collision between buffer shaft 6 and the base 3 of Steel material
Damage, therefore buffer shaft 6 is also protected, increase the service life.The oil opened up by the bottom connection side wall of base 3 of the cushion hole 31
Hole 32, loop is formed, realize injection and discharge hydraulic oil, close structure, be easy to assembling to use and safeguard.Hydraulic oil is by buffering
Hole 31 passes in and out, and cylinder efficient is stable, and buffering effect is good.
Certainly, the utility model can also have other various embodiments, without departing substantially from the utility model spirit and its essence
In the case of, those skilled in the art work as can make various corresponding changes and modifications according to the utility model, but these
Corresponding change and deformation should all belong to the scope of the claims appended by the utility model.
Claims (7)
1. a kind of cushion cylinder, including cylinder body（1）, the cylinder body（1）One end be combined with cylinder cap（2）, cylinder body（1）Other end knot
Conjunction has base（3）；The cylinder body（1）Inside it is provided with piston rod（4）And piston（5）, the piston rod（4）One end passes cylinder cap
（2）, piston rod（4）The other end connection piston（5）, it is characterised in that：The piston（5）Towards base（3）One end be provided with
Buffer shaft（6）, work as piston（5）Slide to base（3）When, buffer shaft（6）Follow piston（5）Slide and inserted base（3）On it is slow
Punching（31）, buffer shaft（6）Side face and cushion hole（31）Coordinate extruding hydraulic oil between inwall and reach buffering.
A kind of 2. cushion cylinder according to claim 1, it is characterised in that：The buffer shaft（6）It is by piston rod（4）Together
Axle extension is formed.
A kind of 3. cushion cylinder according to claim 1 or 2, it is characterised in that：The buffer shaft（6）Side face be provided with
Dashpot（61）, dashpot（61）Carry over buffer shaft（6）It is axially extending.
A kind of 4. cushion cylinder according to claim 3, it is characterised in that：The dashpot（61）Groove depth from buffer shaft
（6）Outer end towards piston（5）Direction gradually becomes shallower as.
A kind of 5. cushion cylinder according to claim 4, it is characterised in that：The dashpot（61）There are three, three slow
Jet-bedding（61）In buffer shaft（6）Side face in equilateral triangle be distributed.
A kind of 6. cushion cylinder according to claim 3, it is characterised in that：The buffer shaft（6）For cylinder, buffer shaft
（6）External diameter be less than base（3）On cushion hole（31）Aperture, in cushion hole（31）Port be provided with copper sheathing（7）, copper sheathing
（7）Endoporus aperture and buffer shaft（6）External diameter it is consistent.
A kind of 7. cushion cylinder according to claim 6, it is characterised in that：The cushion hole（31）By bottom connection bottom
Seat（3）The oilhole that side wall opens up（32）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501706.5U CN206754044U (en) | 2017-05-08 | 2017-05-08 | A kind of cushion cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720501706.5U CN206754044U (en) | 2017-05-08 | 2017-05-08 | A kind of cushion cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206754044U true CN206754044U (en) | 2017-12-15 |
Family
ID=60617187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720501706.5U Expired - Fee Related CN206754044U (en) | 2017-05-08 | 2017-05-08 | A kind of cushion cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206754044U (en) |
-
2017
- 2017-05-08 CN CN201720501706.5U patent/CN206754044U/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: 20171215 Termination date: 20190508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |