CN207093476U - A kind of oil cylinder of adjustable decrease speed - Google Patents
A kind of oil cylinder of adjustable decrease speed Download PDFInfo
- Publication number
- CN207093476U CN207093476U CN201721060144.1U CN201721060144U CN207093476U CN 207093476 U CN207093476 U CN 207093476U CN 201721060144 U CN201721060144 U CN 201721060144U CN 207093476 U CN207093476 U CN 207093476U
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- tube chamber
- cylinder
- section
- cylinder cap
- segment
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Abstract
The utility model discloses a kind of oil cylinder of adjustable decrease speed, including cylinder barrel, the affixed cylinder cap with cylinder barrel, inlet and outlet of fuel channel is set in the cylinder cap, described inlet and outlet of fuel channel one end communicates with inner cavity of cylinder, the other end is communicated by interface with hydraulic oil container, the cylinder cap also serves as valve seat, cylindrical tube chamber is opened up in the cylinder cap, spring and the steel ball abutted with spring are set in the tube chamber, steel ball is also against on a valve body, gap on regulation valve body with tube chamber can adjust the flow velocity of inlet and outlet of fuel channel, in special operation condition, steel ball valve body forms gap and can be filled into the fluid in fuel tank in cylinder barrel by the gap.Compared with prior art, the utility model valve seat is combined into one with cylinder cap, saves material and space, can not only realize the function of regulation decrease speed, and can also realize liquid replenishing function.
Description
Technical field
The present invention relates to technical field of hydraulic pressure, and in particular to a kind of oil cylinder of adjustable decrease speed.
Background technology
Oil cylinder is also referred to as hydraulic cylinder, is that hydraulic energy is changed into mechanical energy, does straight reciprocating motion or the liquid of oscillating motion
Press executive component.Its simple in construction, reliable operation.During with it to realize reciprocating motion, deceleration device can be removed from, and do not pass
Dynamic gap, stable movement, therefore be used widely in various mechanical hydraulic systems.The essential part of hydraulic cylinder is
Cylinder barrel and cylinder cap, piston and piston rod.Oil cylinder can be divided into single-acting formula, double-acting type by by action of hydraulic force situation；By structure
It is telescopic that form can be divided into piston type, plunger type, multi-stage expansion, pinion and-rack etc..
Oil cylinder is applied also than wide in agricultural machinery, controls this to plough by oil cylinder if the tiller of tractor mounting
Make the raising and lowering of machine.Generally use one-way cylinder in agricultural machinery, its pressure oil only for oil cylinder a chamber, by hydraulic pressure
Power makes cylinder realize unidirectional motion, and the load of opposite direction motion then outer portion's farm implements is realized.The decline of oil cylinder under normal circumstances
Speed depends on bore, the effective active area of oil cylinder and the size of external load into oil cylinder oil return opening.For one
For specific hydraulic cylinder and specific external load, the falling speed of desired mounting farm implements is obtained, oil cylinder must be adjusted
The bore of oil return opening.But for common oil cylinder, what the bore of oil return opening was usually fixed.In addition, when lifter is in spy
Determine under operating mode, negative pressure state is can be in cylinder tube, now cylinder barrel domestic demand supplies fluid in time, otherwise can be to whole hydraulic pressure system
System causes to damage.Therefore merely oil return opening concatenate a regulating flow quantity valve be can not solve adjust decrease speed skill
Art problem problem.
The content of the invention
Purpose of the present invention above-mentioned technical problem exactly existing for solution, discloses a kind of oil cylinder of adjustable decrease speed,
Therefore, the present invention adopts the technical scheme that：
A kind of oil cylinder of adjustable decrease speed, including cylinder barrel, with the affixed cylinder cap of cylinder barrel, set into fuel-displaced in the cylinder cap
Road, described inlet and outlet of fuel channel one end are communicated with inner cavity of cylinder, and the other end is communicated by interface with hydraulic oil container,
The cylinder cap also serves as valve seat, cylindrical tube chamber is opened up in the cylinder cap, the lumen open is in the cylinder cap
Side wall, its caliber reduce to form four sections of tube chambers from the inside staged of opening：Positioned at opening and it is the maximum first paragraph pipe of internal diameter
Chamber, the second segment tube chamber for the first paragraph tube chamber that continues, the second segment tube chamber that continues the 3rd section of tube chamber, continue the described 3rd
Section tube chamber is also the 4th section of minimum tube chamber of internal diameter simultaneously, wherein the 3rd section of tube chamber is split by the first orthogonal to that blind hole
Into two parts：The 3rd leading portion tube chamber close to the second segment tube chamber, the 3rd back segment tube chamber close to the 4th section of tube chamber,
Internal thread is set on the inwall of the 3rd leading portion tube chamber；
The 4th section of tube chamber communicates with the inlet and outlet of fuel channel；One, which is filled in, in the 4th section of tube chamber does not stop hydraulic pressure
The sleeve seat that oil enters, the sleeve seat are embedded in a spring, and the free end of the spring abuts a diameter
Less than the steel ball of the 4th section of lumen diameter；
Also include a valve body, the valve body includes regulation handle, the staged circle being connected as a single entity with the regulation handle
Axis of a cylinder, the staged cylinder axis includes the second segment cylinder axis with the second segment tube chamber interference fits, before the described 3rd
The 3rd section of threaded circular axis of a cylinder that section tube chamber is spirally connected；Internal diameter is less than the 4th that the 3rd back segment lumen diameter is more than the 4th section of lumen diameter
Section cylinder axis；The end set chamfering of the 4th section of cylinder axis, the chamfering and the 3rd back segment tube chamber and the described 4th
Section tube chamber junction gap is relative, the second blind hole is opened up in the end face of the 4th section of cylinder axis, in the 4th section of cylinder axis
Circumferential disc uniformly open up four side openings communicated with second blind hole；The steel ball props up the opening of second blind hole
End.
Further, annular groove is opened up on the second segment cylinder axis, oil sealing is embedded in the annular groove.
Further, the screwed hole communicated with the first paragraph tube chamber is opened up on the cylinder cap, is spirally connected in the screwed hole
Jackscrew is against on the valve body.
Compared with prior art, valve seat of the present invention is combined into one with cylinder cap, is saved material and space, can not only be realized regulation
The function of decrease speed, and liquid replenishing function can also be realized.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the partial enlarged drawing at dashed box in Fig. 1.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, according to art
Language " first ", " second ", it is only used for describing purpose, and it is not intended that instruction or hint relative importance.In the utility model
Description in, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " should be done extensively
Reason and good sense solution, such as connect, can be fixedly connected or be detachably connected, or be integrally connected;Can be that machinery connects
Connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, it can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
A kind of oil cylinder of adjustable decrease speed, including cylinder barrel, with the affixed cylinder cap 1 of cylinder barrel, set disengaging in the cylinder cap 1
Oil circuit 11, described one end of inlet and outlet of fuel channel 11 are communicated with inner cavity of cylinder, and the other end is communicated by interface with hydraulic oil container, the cylinder cap
1 also serves as valve seat, and cylindrical tube chamber 12 is opened up in the cylinder cap 1, and the tube chamber 12 is opened on the side wall of the cylinder cap 1, and it is managed
The inside staged that is open without leave reduces to form four sections of tube chambers：Positioned at opening and for the maximum first paragraph tube chamber 121 of internal diameter, continue
The second segment tube chamber 122 of the first paragraph tube chamber 121, the second segment tube chamber 122 that continues the 3rd section of tube chamber 123, continue institute
State the 3rd section of tube chamber 123 while be also the 4th section of minimum tube chamber 124 of internal diameter, wherein the 3rd section of tube chamber 123 by with it just
The first blind hole 5 handed over is divided into two parts：The 3rd leading portion tube chamber 1231 close to the second segment tube chamber, close to described 4th section
3rd back segment tube chamber 1232 of tube chamber, internal thread is set on the inwall of the 3rd leading portion tube chamber 1231；The 4th section of pipe
Chamber 124 communicates with the inlet and outlet of fuel channel 11；One is filled in the 4th section of tube chamber 124 and does not stop the tubulose that hydraulic oil enters
Spring base 2, the sleeve seat 2 are embedded in a spring 3, and the free end of the spring 3 abuts a diameter less than described
The steel ball 4 of the 4th section of internal diameter of tube chamber 124.
Also include a valve body 6, the valve body 6 includes regulation handle 61, the rank being connected as a single entity with the regulation handle 61
Ladder type cylinder axis 62, the staged cylinder axis 62 include the second segment cylinder axis 622 with the second segment tube chamber interference fits,
The 3rd section of threaded circular axis of a cylinder 623 being spirally connected with the 3rd leading portion tube chamber 1231；Internal diameter is less than the internal diameter of the 3rd back segment tube chamber 1232
More than the 4th section of cylinder axis 623 of the 4th section of internal diameter of tube chamber 124；The end set chamfering of the 4th section of cylinder axis 623, it is described
Chamfering and the 3rd back segment tube chamber are relative with the 4th section of tube chamber junction gap, in the 4th section of cylinder axis 623
End face opens up the second blind hole 6241, the circumferential disc of the 4th section of cylinder axis 623 uniformly open up four with it is described second blind
The side opening 6242 that hole 6241 communicates；The steel ball 4 props up the openend of second blind hole 6241.The second segment cylinder axis
Annular groove 6221 is opened up on 622, oil sealing 7 is embedded in the annular groove 6221.Opened up on the cylinder cap 1 and the first paragraph tube chamber
121 screwed holes communicated, the jackscrew 8 that is spirally connected in the screwed hole are against on the valve body 6.
In the case where lifting operating mode, hydraulic oil is entered in the second blind hole 6241 lifter by 4 side openings 6242 on valve body 6,
The pressure of the formation of hydraulic oil is acted on steel ball 4, and the compression spring 3 of steel ball 4 moves to right, and is made between being formed between steel ball 4 and valve body 6
Gap, hydraulic oil enter inlet and outlet of fuel channel 11, eventually entered into cylinder barrel, promote piston movement, lifter is formed enhancing action.
For lifter in the case where declining operating mode, fluid in cylinder barrel enters tube chamber 12 by inlet and outlet of fuel channel 11, from the chamfering and
The 3rd back segment tube chamber and the gap of the 4th section of tube chamber junction are discharged, and the big I in the gap is turned by rotating regulation
The positions of 61 valve bodies is determined, and then the fluid delivery flow in control cylinder, obtain the farm implements decrease speed of needs.
Under specific operation, the oil liquid pressure in tube chamber 12 and inlet and outlet of fuel channel 11 is in negative pressure state, now the left side of steel ball 4
Pressure is more than the pressure on right side, and spring 3 compressed, and steel ball 4 can move to right, after being moved to right with the fluid in fuel tank by steel ball 4 with
The gap that the openend of second blind hole 6241 is formed is reached in tube chamber 12, and then is entered by inlet and outlet of fuel channel 11 in cylinder barrel, is this
To carrying out fluid infusion in cylinder barrel under operating mode.
Claims (3)
1. a kind of oil cylinder of adjustable decrease speed, including cylinder barrel and the affixed cylinder cap of cylinder barrel（1）, the cylinder cap（1）Inside set into
Vent line（11）, the inlet and outlet of fuel channel（11）One end is communicated with inner cavity of cylinder, and the other end is communicated by interface with hydraulic oil container, its
It is characterised by：
The cylinder cap（1）Valve seat is also served as, in the cylinder cap（1）Inside open up cylindrical tube chamber（12）, the tube chamber（12）It is opened on
The cylinder cap（1）Side wall, its caliber reduces to form four sections of tube chambers from the inside staged of opening：Positioned at opening and for internal diameter most
Big first paragraph tube chamber（121）, continue the first paragraph tube chamber（121）Second segment tube chamber（122）, continue the second segment pipe
Chamber（122）The 3rd section of tube chamber（123）, continue the 3rd section of tube chamber（123）It is also the 4th section of minimum tube chamber of internal diameter simultaneously
（124）, wherein the 3rd section of tube chamber（123）By the first orthogonal to that blind hole（5）It is divided into two parts：Close to described second
3rd leading portion tube chamber of section tube chamber（1231）, close to the 4th section of tube chamber the 3rd back segment tube chamber（1232）, the described 3rd
Leading portion tube chamber（1231）Inwall on internal thread is set；
The 4th section of tube chamber（124）With the inlet and outlet of fuel channel（11）Communicate；In the 4th section of tube chamber（124）Inside fill in one
The sleeve seat that hydraulic oil enters is not stopped（2）, the sleeve seat（2）It is embedded in a spring（3）, the spring
（3）Free end abut a diameter be less than the 4th section of tube chamber（124）The steel ball of internal diameter（4）；
Also include a valve body（6）, the valve body（6）Including adjusting handle（61）And the regulation handle（61）It is connected as a single entity
Staged cylinder axis（62）, the staged cylinder axis（62）Including justifying with the second segment of the second segment tube chamber interference fits
Axis of a cylinder（622）, with the 3rd leading portion tube chamber（1231）The 3rd section of threaded circular axis of a cylinder being spirally connected（623）；After internal diameter is less than the 3rd
Section tube chamber（1232）Internal diameter is more than the 4th section of tube chamber（124）4th section of cylinder axis of internal diameter（623）；The 4th section of cylinder axis
（623）End set chamfering, the chamfering and the 3rd back segment tube chamber are relative with the 4th section of tube chamber junction gap,
In the 4th section of cylinder axis（623）End face open up the second blind hole（6241）, in the 4th section of cylinder axis（623）Circumference
Disc uniformly opens up four and second blind hole（6241）The side opening communicated（6242）；The steel ball（4）Prop up described second
Blind hole（6241）Openend.
A kind of 2. oil cylinder of adjustable decrease speed according to claim 1, it is characterised in that：The second segment cylinder axis
（622）On open up annular groove（6221）, the annular groove（6221）Inside it is embedded oil sealing（7）.
A kind of 3. oil cylinder of adjustable decrease speed according to claim 1, it is characterised in that：The cylinder cap（1）On open up
With the first paragraph tube chamber（121）The screwed hole communicated, be spirally connected in the screwed hole jackscrew（8）It is against the valve body（6）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721060144.1U CN207093476U (en) | 2017-08-23 | 2017-08-23 | A kind of oil cylinder of adjustable decrease speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721060144.1U CN207093476U (en) | 2017-08-23 | 2017-08-23 | A kind of oil cylinder of adjustable decrease speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093476U true CN207093476U (en) | 2018-03-13 |
Family
ID=61538719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721060144.1U Withdrawn - After Issue CN207093476U (en) | 2017-08-23 | 2017-08-23 | A kind of oil cylinder of adjustable decrease speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313996A (en) * | 2017-08-23 | 2017-11-03 | 山东弘宇农机股份有限公司 | A kind of oil cylinder of adjustable decrease speed |
-
2017
- 2017-08-23 CN CN201721060144.1U patent/CN207093476U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313996A (en) * | 2017-08-23 | 2017-11-03 | 山东弘宇农机股份有限公司 | A kind of oil cylinder of adjustable decrease speed |
| CN107313996B (en) * | 2017-08-23 | 2023-08-11 | 山东弘宇农机股份有限公司 | Oil cylinder capable of adjusting descending speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230811 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20230811 |