CN206144898U - Novel hydraulic cylinder - Google Patents
Novel hydraulic cylinder Download PDFInfo
- Publication number
- CN206144898U CN206144898U CN201621173626.3U CN201621173626U CN206144898U CN 206144898 U CN206144898 U CN 206144898U CN 201621173626 U CN201621173626 U CN 201621173626U CN 206144898 U CN206144898 U CN 206144898U
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- piston
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- cylinder
- hydraulic cylinder
- novel hydraulic
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Abstract
The utility model discloses a novel hydraulic cylinder belongs to the pneumatic cylinder field. Novel hydraulic cylinder mainly includes piston rod, first end cover, cylinder body, first piston, first sealing washer, buffer block, second piston, second sealing washer and second end cover, first end cover links to each other with the first end of cylinder body, and the second end cover links to each other with cylinder body second end, the piston rod links to each other with first piston, and first piston links to each other with the buffer block, and first sealing washer is installed on first piston, and the second sealing washer is installed on the second piston. The utility model discloses simple structure, through the cylinder body design of chamber, second piston and buffer block of calming the anger that climbs to a high place, pneumatic cylinder itself can relax surge pressure, absorbs fluctuating pressure, has improved the traveling comfort, when the piston rod contracts extreme position, can cushion the piston, improved the life of pneumatic cylinder.
Description
Technical field
The utility model is related to hydraulic cylinder field, and in particular to a kind of novel hydraulic cylinder.
Background technology
Hydraulic cylinder is to be changed into mechanical energy, do straight reciprocating motion hydraulic energy（Or oscillating motion）Hydraulic pressure perform unit
Part.Its simple structure, reliable operation.When being realized moving back and forth with it, deceleration device can be removed from, and without drive gap,
Stable movement, therefore be used widely in the hydraulic system of various machineries.Hydraulic cylinder power output and piston effective area and
The pressure reduction on its both sides is directly proportional；Hydraulic cylinder substantially by cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit with
Exhaust apparatus is constituted.
When hydraulic cylinder is applied in hydraulic system, the operating mode of load mutation can be run into unavoidably, load increases suddenly can be caused
Hydraulic fluid pressure increases suddenly in hydraulic cylinder, causes hydraulic circuit pressure to fluctuate, and is easily damaged hydraulic circuit, shortens hydraulic cylinder
Service life；There is larger kinetic energy when hydraulic cylinder is to stroke end, such as do not make deceleration process, hydraulic cylinder piston and cylinder cap
Mechanical collision will occur, impact, noise will be produced, have destructiveness, it is therefore desirable to which buffer unit is set.
The content of the invention
The purpose of this utility model is to provide for a kind of novel hydraulic cylinder, and hydraulic cylinder itself can relax surge, inhales
Fluctuation pressure is received, and cushioning effect can be provided to hydraulic cylinder piston, it is to avoid hydraulic cylinder piston is sent out under high-speed motion with cylinder body
Raw mechanical collision.
To reach above-mentioned purpose, the technical scheme that the utility model is adopted is as follows：
Novel hydraulic cylinder includes：Piston rod 1, the first end cap 2, cylinder body 3, the first oil pocket 4, first piston 5, the first sealing ring
6th, buffer stopper 7, the second oil pocket 8, second piston 9, the second sealing ring 10, high pressure air cavity 11, the second end cap 12, inflation inlet 13,
Two hydraulic fluid ports 14 and the first hydraulic fluid port 15；First end cap 2 is connected with the first end of cylinder body 3, and the second end cap 12 is connected with the end of cylinder body 3 second；
Piston rod 1 is connected with first piston 5, and first piston 5 is connected with buffer stopper 7, and the first sealing ring 6 is arranged on first piston 5, the
Two sealing rings 10 are arranged in second piston 9.
Further, the cylinder body 3 is provided with high pressure air cavity 11, and between the second oil pocket 8 and high pressure air cavity 11 annular is provided with
Baffle ring, is additionally provided with the first hydraulic fluid port 15, the second hydraulic fluid port 14 and inflation inlet 13.
Further, the buffer stopper 7 is cylinder, diameter of its diameter less than annular baffle ring hole on cylinder body 3.
The utility model has following beneficial effect：Cause compression shock due to loading change during hydraulic cylinder works
Or during pressure oscillation, second piston can be moved back and forth according to load in high pressure air cavity, surge is relaxed, alleviate punching
Damage of the pressure to hydraulic cylinder is hit, and fluctuation pressure in hydraulic cylinder can be absorbed, improve traveling comfort；Will in piston rod
When being retracted to extreme position, second piston provides plugging power by buffer stopper for first piston, makes first piston slow down, and is
First piston provides cushioning effect, it is to avoid the first piston of hydraulic cylinder occurs mechanical collision under high-speed motion with cylinder body, improves
The service life of hydraulic cylinder.
Description of the drawings
With reference to the accompanying drawings and examples further describing the present invention.
Fig. 1 is the structure chart of the novel hydraulic cylinder that the utility model is proposed.
In figure：1-piston rod；2-the first end cap；3-cylinder body；4-the first oil pocket；5-first piston；6-the first is close
Seal；7-buffer stopper；8-the second oil pocket；9-second piston；10-the second sealing ring；11-high pressure air cavity；12-the second end
Lid；13-inflation inlet；14-the second hydraulic fluid port；15-the first hydraulic fluid port.
Specific embodiment
With reference to the accompanying drawings and examples further describing the present invention.
As shown in figure 1, novel hydraulic cylinder includes：Piston rod 1, the first end cap 2, cylinder body 3, the first oil pocket 4, first piston 5,
First sealing ring 6, buffer stopper 7, the second oil pocket 8, second piston 9, the second sealing ring 10, high pressure air cavity 11, the second end cap 12, fill
Gas port 13, the second hydraulic fluid port 14 and the first hydraulic fluid port 15；First end cap 2 is connected with the first end of cylinder body 3, the second end cap 12 and cylinder body 3 the
Two ends are connected；Piston rod 1 is connected with first piston 5, and first piston 5 is connected with buffer stopper 7, and the first sealing ring 6 is arranged on first
5 on piston, the second sealing ring 10 is arranged in second piston 9；Cylinder body 3 is provided with high pressure air cavity 11, in the second oil pocket 8 and high pressure
Annular baffle ring is provided between air cavity 11, the first hydraulic fluid port 15, the second hydraulic fluid port 14 and inflation inlet 13 is additionally provided with；Buffer stopper 7 is cylinder,
Diameter of its diameter less than annular baffle ring hole on cylinder body 3.
Specific work process of the present utility model is as follows：
During hydraulic cylinder normal work, certain pressure is filled with into high pressure air cavity 11 by inflation inlet 13 according to load
Gases at high pressure, when loading constant, pressure is constant in the second oil pocket 8, and now the hydraulic oil of the second oil pocket 8 acts on second piston
The power of 9 first end faces is equal to the power that the gases at high pressure of high pressure air cavity 11 are acted in the second end face of second piston 9, second piston 9
Stress balance, the geo-stationary on the left of the annular baffle ring of cylinder body 3；When load increase suddenly, pressure rise in the second oil pocket 8,
Now the hydraulic oil of the second oil pocket 8 acts on the gases at high pressure effect of the power more than high pressure air cavity 11 of the first end face of second piston 9
Power in the second end face of second piston 9, second piston 9 to the direction that the volume of high pressure air cavity 11 reduces is moved, high pressure air cavity 11
The portion of energy produced due to load changing is absorbed, conversely, when load restoration is to initial value, second piston 9 is to high pressure air cavity
The direction movement of 11 volumes increase, high pressure air cavity 11 releases energy, and second piston 9 comes back to initial rest position, by with
The reciprocatory movement in cylinder body 3 of upper second piston 9, can relax surge in hydraulic cylinder, and Absorbing Fluctuation pressure improves liquid
The running stability of cylinder pressure, improves the service life of hydraulic cylinder.
When the piston rod 1 of hydraulic cylinder will be retracted to extreme position, now buffer stopper 7 passes through the annular baffle ring of cylinder body 3
Contact with the first end face of second piston 9, second piston 9 is that first piston 5 provides plugging power by buffer stopper 7, makes the
One piston 5 slows down, be first piston 5 provide cushioning effect, it is to avoid the first piston 5 of hydraulic cylinder under high-speed motion with cylinder body 3
Generation mechanical collision, further increases the service life of hydraulic cylinder.
Above-described is only embodiment of the present utility model, and known concrete structure and characteristic general knowledge here be not in scheme
Make excessive description, but itself and non-limiting the utility model, it is any to deform and change on the premise of without departing from the utility model structure
It is dynamic to be all considered as in protection domain of the present utility model, therefore protection domain of the present utility model should be with claims institute circle
Fixed is defined.
Claims (3)
1. novel hydraulic cylinder, including piston rod (1), the first end cap (2), cylinder body (3), first piston (5), the first sealing ring (6),
Buffer stopper (7), second piston (9), the second sealing ring (10), the second end cap (12)；First end cap (2) and cylinder body (3) first end
It is connected, the second end cap (12) is connected with the end of cylinder body (3) second；Piston rod (1) is connected with first piston (5), first piston (5) with
Buffer stopper (7) is connected, and on first piston (5), the second sealing ring (10) is installed in second piston for the first sealing ring (6)
(9) on.
2. novel hydraulic cylinder according to claim 1, it is characterised in that the cylinder body (3) is provided with high pressure air cavity (11),
Be provided with annular baffle ring between the second oil pocket (8) and high pressure air cavity (11), be additionally provided with the first hydraulic fluid port (15), the second hydraulic fluid port (14) and
Inflation inlet (13).
3. novel hydraulic cylinder according to claim 1, it is characterised in that the buffer stopper (7) is cylinder, and its diameter is little
The diameter in annular baffle ring hole on cylinder body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173626.3U CN206144898U (en) | 2016-11-02 | 2016-11-02 | Novel hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621173626.3U CN206144898U (en) | 2016-11-02 | 2016-11-02 | Novel hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206144898U true CN206144898U (en) | 2017-05-03 |
Family
ID=58622562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621173626.3U Expired - Fee Related CN206144898U (en) | 2016-11-02 | 2016-11-02 | Novel hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206144898U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605856A (en) * | 2017-09-28 | 2018-01-19 | 山西晨辉锻压设备制造有限公司 | A kind of double-piston cushion cylinder |
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN108071624A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | A kind of integrated hydraulic cylinder |
| CN112555228A (en) * | 2020-12-09 | 2021-03-26 | 山东科技大学 | Impact-resistant balance oil cylinder with pressure relief and buffer protection |
| CN113153701A (en) * | 2021-03-05 | 2021-07-23 | 西安交通大学 | Point impact prevention mechanism of liquid-driven piston compressor |
| CN113882248A (en) * | 2021-10-20 | 2022-01-04 | 中铁建设集团华北工程有限公司 | Bridge expansion joint structure and construction method |
| CN114321082A (en) * | 2021-12-24 | 2022-04-12 | 苏州赛泰克机械科技有限公司 | Hydraulic cylinder with high buffer performance |
-
2016
- 2016-11-02 CN CN201621173626.3U patent/CN206144898U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108071624A (en) * | 2017-08-24 | 2018-05-25 | 深圳市罗伯医疗科技有限公司 | A kind of integrated hydraulic cylinder |
| CN107605856A (en) * | 2017-09-28 | 2018-01-19 | 山西晨辉锻压设备制造有限公司 | A kind of double-piston cushion cylinder |
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN108035935B (en) * | 2017-12-24 | 2020-02-18 | 中国航发贵州红林航空动力控制科技有限公司 | Piston buffering pushing device for electro-hydraulic actuator |
| CN112555228B (en) * | 2020-12-09 | 2021-11-05 | 山东科技大学 | Impact-resistant balance oil cylinder with pressure relief and buffer protection |
| CN112555228A (en) * | 2020-12-09 | 2021-03-26 | 山东科技大学 | Impact-resistant balance oil cylinder with pressure relief and buffer protection |
| WO2022016949A1 (en) * | 2020-12-09 | 2022-01-27 | 山东科技大学 | Impact-resistant balance oil cylinder having functions of pressure relief and buffer protection |
| US20220412380A1 (en) * | 2020-12-09 | 2022-12-29 | Shandong University Of Science And Technology | Impact-resistant balanced hydro-cylinder with pressure relief and buffering protection |
| JP7390675B2 (en) | 2020-12-09 | 2023-12-04 | 山東科技大学 | Impact-resistant balance cylinder with pressure release and buffer protection functions |
| US11913479B2 (en) * | 2020-12-09 | 2024-02-27 | Shandong University Of Science And Technology | Impact-resistant balanced hydro-cylinder with pressure relief and buffering protection |
| CN113153701A (en) * | 2021-03-05 | 2021-07-23 | 西安交通大学 | Point impact prevention mechanism of liquid-driven piston compressor |
| CN113882248A (en) * | 2021-10-20 | 2022-01-04 | 中铁建设集团华北工程有限公司 | Bridge expansion joint structure and construction method |
| CN114321082A (en) * | 2021-12-24 | 2022-04-12 | 苏州赛泰克机械科技有限公司 | Hydraulic cylinder with high buffer performance |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20171102 |