CN207033881U - A kind of controllable cushion cylinder of hydraulic pressure - Google Patents
A kind of controllable cushion cylinder of hydraulic pressure Download PDFInfo
- Publication number
- CN207033881U CN207033881U CN201720893744.XU CN201720893744U CN207033881U CN 207033881 U CN207033881 U CN 207033881U CN 201720893744 U CN201720893744 U CN 201720893744U CN 207033881 U CN207033881 U CN 207033881U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- external spiral
- oil groove
- piston
- cylinder sleeve
- 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
Links
Landscapes
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a kind of controllable cushion cylinder of hydraulic pressure, including：Cylinder body；External spiral cylinder sleeve in cylinder body；In external spiral cylinder sleeve and the piston that can be moved in external spiral cylinder sleeve, external spiral cylinder sleeve is separated into top oil groove and bottom oil groove by the piston, connected by the second liquid-through hole between the top oil groove and external spiral cylinder sleeve, connected between the bottom oil groove and external spiral cylinder sleeve by the first liquid-through hole；Installed in the check valve of piston base, the inlet of the check valve connects with top oil groove, and the liquid outlet of the check valve connects with bottom oil groove；Piston rod on piston, extend to outside cylinder body at the top of the piston rod；Seal gasket in cylinder body and at the top of external spiral cylinder sleeve；Sealing seal receptacle at the top of seal gasket；Cylinder cap at the top of sealing seal receptacle.The controllable cushion cylinder of this hydraulic pressure, it can make it that the buffer time of oil cylinder and compensator or trimmer pressure are controllable.
Description
Technical field
It the utility model is related to a kind of oil cylinder, and in particular to a kind of controllable cushion cylinder of hydraulic pressure.
Background technology
In hydraulic system, hydraulic jack is one of essential Hydraulic Elements, in order to prevent piston in running
Collided during end of a period with end cap, cause noise, influenceed workpiece accuracy or damage hydraulic cylinder, often cover setting in cylinder ends
There is buffer unit, so that piston movement slows down gradually to stopping to speed when being ended soon close to stroke.Existing buffer unit shape
Formula is buffer plunger, cushion collar, buffering ring and trimmer valve etc., and these buffer units stretch out hydraulic jack acting in reply piston rod
When, good buffer protection function can be played, but the generally existing cylinder buffer time is uncontrollable, compensator or trimmer pressure is uncontrollable, makes
With life-span not long etc. drawback.
Utility model content
In view of the shortcomings of the prior art, the utility model provides a kind of controllable cushion cylinder of hydraulic pressure, can cause oil
The buffer time of cylinder and compensator or trimmer pressure are controllable.
To realize above-mentioned technical proposal, the utility model provides a kind of controllable cushion cylinder of pressurized hydraulic, including：Cylinder
Body；External spiral cylinder sleeve in cylinder body；In external spiral cylinder sleeve and the piston that can be moved in external spiral cylinder sleeve, institute
State piston and external spiral cylinder sleeve is separated into top oil groove and bottom oil groove, by the between the top oil groove and external spiral cylinder sleeve
Two liquid-through holes connect, and are connected between the bottom oil groove and external spiral cylinder sleeve by the first liquid-through hole；Installed in piston base
Check valve, the inlet of the check valve connect with top oil groove, and the liquid outlet of the check valve connects with bottom oil groove；Installation
Piston rod on piston, extend to outside cylinder body at the top of the piston rod；In cylinder body and it is located at external spiral cylinder sleeve top
The seal gasket in portion；Sealing seal receptacle at the top of seal gasket；Cylinder cap at the top of sealing seal receptacle.
In the above-mentioned technical solutions, hydraulic oil is full of in the oil groove of top, when piston rod tension, check valve is opened, that is, is pushed up
Hydraulic oil in portion's oil groove can flow directly into liquid outlet from the inlet of check valve, and the hydraulic oil in the oil groove of top can be quick
Bottom oil groove is flowed to, the suffered resistance very little of now piston movement, piston can be moved quickly.When piston rod is pressurized, unidirectionally
Valve is closed, i.e., the hydraulic oil in the oil groove of top can not flow directly into liquid outlet from the inlet of check valve, now bottom oil groove
Interior hydraulic oil can only be flowed into the oil groove of top by the second liquid-through hole again from the first liquid-through hole by external spiral cylinder sleeve, and hydraulic oil exists
Can be by a larger flow resistance when flowing in external spiral cylinder sleeve, therefore can be in the presence of resistance when piston rod is pressurized
It is slowly mobile, so as to play a part of the buffering that is pressurized., can be by adjusting top oil groove in specific design process
Depth, the length of external spiral cylinder sleeve or the first liquid-through hole, the control cylinder such as diameter of the second liquid-through hole are specific when being pressurized
Buffer time and oil cylinder working-pressure during buffering.Can by the seal gasket at the top of external spiral cylinder sleeve and sealing seal receptacle
To ensure piston rod during tension or compression, hydraulic oil will not be from tip-leakage.
Preferably, it is described sealing seal receptacle on be additionally provided with sealing ring, even if by sealing ring may insure hydraulic oil by
By will not also be leaked during larger pressure from top.
Preferably, the upper end of the piston rod is additionally provided with guide sleeve, it is ensured that piston rod keeps rectilinear movement.
Preferably, the piston rod is threadedly attached on piston, facilitates the quick assembling of piston rod.
Relative to prior art, a kind of beneficial effect of the controllable cushion cylinder of hydraulic pressure provided by the utility model is：
The controllable buffer cylinder structure of this hydraulic pressure is simple, working stability, and has good sealing property, can be by adjusting top
The control cylinder tension such as diameter of the depth of oil groove, the length of external spiral cylinder sleeve or the second liquid-through hole, the first liquid-through hole
When specific buffer time with buffering when oil cylinder working-pressure.
Brief description of the drawings
Fig. 1 is dimensional structure diagram of the present utility model.
Fig. 2 is sectional view of the present utility model.
In figure：10th, cylinder body；20th, piston rod；30th, piston；40th, piston pad；50th, seal gasket；60th, sealing ring；70、
Seal seal receptacle；80th, cylinder cap；90th, guide sleeve；100th, check valve；110th, inlet；120th, liquid outlet；130th, top oil groove；
140th, external spiral cylinder sleeve；150th, the first liquid-through hole；160th, the second liquid-through hole；170th, bottom oil groove.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.The every other embodiment that ordinary people in the field is obtained under the premise of creative work is not made, is belonged to
The scope of protection of the utility model.
Embodiment：A kind of controllable cushion cylinder of hydraulic pressure.
It is shown referring to Figures 1 and 2, a kind of controllable cushion cylinder of hydraulic pressure, including：Cylinder body 10；In cylinder body 10
External spiral cylinder sleeve 140；In the external spiral cylinder sleeve 140 and the piston 30 that can be moved in external spiral cylinder sleeve 140, piston 30
Bottom is provided with piston pad 40, and external spiral cylinder sleeve 140 is separated into top oil groove 130 and bottom oil groove 170 by the piston 30,
Connected between the top oil groove 130 and external spiral cylinder sleeve 140 by the second liquid-through hole 160, the bottom oil groove 170 and outer spiral shell
Connected between rotation cylinder sleeve 140 by the first liquid-through hole 150；Check valve 100 installed in the bottom of piston 30, the check valve 100
Inlet 110 connected with top oil groove 130, the liquid outlet 120 of the check valve 100 connects with bottom oil groove 170；It is arranged on
Piston rod 20 on piston 30, the top of the piston rod 20 are extended to outside cylinder body 10；In the cylinder body 10 and it is located at outer spiral shell
Revolve the seal gasket 50 at the top of cylinder sleeve 140；Sealing seal receptacle 70 installed in the top of seal gasket 50；Installed in sealing seal receptacle
The cylinder cap 80 at 70 tops.
Operation principle of the present utility model is：Hydraulic oil is full of in top oil groove 130, when 20 tension of piston rod, unidirectionally
Valve 100 is opened, i.e., the hydraulic oil in the oil groove 130 of top can flow directly into liquid outlet 120 from the inlet 110 of check valve 100,
Hydraulic oil in top oil groove 130 can rapidly flow toward bottom oil groove 170, and now piston 30 moves suffered resistance very little, living
Plug 30 can be moved quickly.When piston rod 20 is pressurized, check valve 100 is closed, i.e., the hydraulic oil in the oil groove 130 of top can not
Liquid outlet 120 is flowed directly into from the inlet 110 of check valve 100, now the hydraulic oil in bottom oil groove 170 can only be logical from first
Fluid apertures 150 is flowed into the oil groove 130 of top by the second liquid-through hole 160 again by external spiral cylinder sleeve 140, and hydraulic oil is in external spiral cylinder sleeve
Can be slow in the presence of resistance by a larger flow resistance, therefore when piston rod 20 is pressurized when flowing in 140
It is mobile, so as to play a part of the buffering that is pressurized., can be by adjusting top oil groove 130 in specific design process
Depth, the length of external spiral cylinder sleeve 140 or the first liquid-through hole 150, the second liquid-through hole 160 the control cylinder such as diameter by
Specific buffer time and the oil cylinder working-pressure during buffering during pressure.Pass through the seal gasket 50 installed in the top of external spiral cylinder sleeve 140
Piston rod 20 is may insure during tension or compression with sealing seal receptacle 70, and hydraulic oil will not be from tip-leakage.
Shown in reference picture 2, sealing ring 60 is additionally provided with the sealing seal receptacle 70, liquid may insure by sealing ring 60
Force feed is even if by will not also be leaked during larger pressure from top.
Shown in reference picture 2, the upper end of the piston rod 20 is additionally provided with guide sleeve 90, it is ensured that piston rod 20 keeps straight line to move
It is dynamic.
Shown in reference picture 2, the piston rod 20 is threadedly attached on piston 30, facilitates quick group of piston rod 20
Dress.
Described above is preferred embodiment of the present utility model, but the utility model should not be limited to the embodiment and
Accompanying drawing disclosure of that, so every do not depart from the lower equivalent or modification completed of spirit disclosed in the utility model, all fall
Enter the scope of the utility model protection.
Claims (4)
- A kind of 1. controllable cushion cylinder of hydraulic pressure, it is characterised in that including：Cylinder body；External spiral cylinder sleeve in cylinder body；In external spiral cylinder sleeve and external spiral cylinder sleeve is separated into by the piston that can be moved in external spiral cylinder sleeve, the piston Top oil groove and bottom oil groove, connected between the top oil groove and external spiral cylinder sleeve by the second liquid-through hole, the bottom oil Connected between groove and external spiral cylinder sleeve by the first liquid-through hole；Installed in the check valve of piston base, the inlet of the check valve connects with top oil groove, and the check valve goes out liquid Mouth connects with bottom oil groove；Piston rod on piston, extend to outside cylinder body at the top of the piston rod；Seal gasket in cylinder body and at the top of external spiral cylinder sleeve；Sealing seal receptacle at the top of seal gasket；Cylinder cap at the top of sealing seal receptacle.
- 2. the controllable cushion cylinder of hydraulic pressure as claimed in claim 1, it is characterised in that：It is additionally provided with the sealing seal receptacle Sealing ring.
- 3. the controllable cushion cylinder of hydraulic pressure as claimed in claim 1, it is characterised in that：The upper end of the piston rod is additionally provided with Guide sleeve.
- 4. the controllable cushion cylinder of hydraulic pressure as claimed in claim 1, it is characterised in that：The piston rod is threadedly attached in On piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720893744.XU CN207033881U (en) | 2017-07-22 | 2017-07-22 | A kind of controllable cushion cylinder of hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720893744.XU CN207033881U (en) | 2017-07-22 | 2017-07-22 | A kind of controllable cushion cylinder of hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033881U true CN207033881U (en) | 2018-02-23 |
Family
ID=61465576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720893744.XU Expired - Fee Related CN207033881U (en) | 2017-07-22 | 2017-07-22 | A kind of controllable cushion cylinder of hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026902A (en) * | 2018-09-04 | 2018-12-18 | 韶关液压件厂有限公司 | A kind of band moves more damping pass buffering hydraulic cylinders of cylinder head |
| CN110319070A (en) * | 2018-03-28 | 2019-10-11 | 平高集团有限公司 | Hydraulic actuating mechanism, loaded cylinder module and breaker |
-
2017
- 2017-07-22 CN CN201720893744.XU patent/CN207033881U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319070A (en) * | 2018-03-28 | 2019-10-11 | 平高集团有限公司 | Hydraulic actuating mechanism, loaded cylinder module and breaker |
| CN109026902A (en) * | 2018-09-04 | 2018-12-18 | 韶关液压件厂有限公司 | A kind of band moves more damping pass buffering hydraulic cylinders of cylinder head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202402737U (en) | Oil pressure soft bypass valve | |
| CN207033881U (en) | A kind of controllable cushion cylinder of hydraulic pressure | |
| CN204003319U (en) | A kind of multistage compression formula air compressor | |
| CN204299842U (en) | A kind of standing valve offset suction pump | |
| CN205330938U (en) | Segmentation lifts pump | |
| CN206299358U (en) | A kind of back pressure valve | |
| CN106090109B (en) | Hydraulic bjuffer with continuous stepless speed-regulating function | |
| CN202579123U (en) | Double-acting oil well pump with high discharge capacity | |
| CN104847636B (en) | A kind of drag reduction sand control rod pumping pump | |
| CN2903472Y (en) | Large channel solid plunger rod type oil pump | |
| CN209856014U (en) | Large-runner long-plunger sand control pump | |
| CN203570747U (en) | Efficient and energy-saving two-way buffer hydraulic oil cylinder | |
| CN206889559U (en) | A kind of adjustable section buffer of New type detachable | |
| CN207093646U (en) | Ultra-Low Speed hydraulic pressure gas spring | |
| CN201750877U (en) | Novel pump | |
| CN207954256U (en) | A kind of magnetic material wet pressing slurry automatic-feeding device | |
| CN204532798U (en) | A kind of oil-well pump oil inlet valve | |
| CN205916955U (en) | Small -size hydraulic actuating pole | |
| CN208885963U (en) | A kind of blow molding machine energy-saving hydraulic system oil cylinder | |
| CN201747697U (en) | Telescopic hydraulic cylinder | |
| CN203499705U (en) | Double-valve-core hydraulic control one-way valve and hydraulic support system | |
| CN203394719U (en) | Thickened oil thermal recovery oil suction pump for horizontal well | |
| CN204163703U (en) | Development of hydraulic supercharger in injection well | |
| CN202900625U (en) | Sand prevention pump | |
| CN210623061U (en) | Oil inlet device of oil pump for preventing pin tools from acting halfway |
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: 20180223 Termination date: 20210722 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |