CN207393598U - A kind of novel differential cylinder structure - Google Patents
A kind of novel differential cylinder structure Download PDFInfo
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- CN207393598U CN207393598U CN201721240286.6U CN201721240286U CN207393598U CN 207393598 U CN207393598 U CN 207393598U CN 201721240286 U CN201721240286 U CN 201721240286U CN 207393598 U CN207393598 U CN 207393598U
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- solenoid valve
- hydraulic control
- oil pipe
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Abstract
A kind of novel differential cylinder structure, including oil cylinder, oil pump, fuel tank, the big chamber of oil cylinder is connected by oil pipe with oil pump, and oil pump is connected by oil pipe with fuel tank, the small chamber of oil cylinder is connected by oil pipe with fuel tank, further includes the first solenoid valve, check valve, leading hydraulic control one-way valve and second solenoid valve；Wherein, first solenoid valve is 3-position 4-way formula, and be connected respectively with check valve, leading hydraulic control one-way valve, second solenoid valve, oil cylinder, oil pump, second solenoid valve is two tubing types, and is connected respectively with the first solenoid valve, check valve, leading hydraulic control one-way valve, oil pump, fuel tank.The utility model is combined by above-mentioned component, have the characteristics that it is simple and reasonable, have excellent performance, be easy to use, manufacture it is at low cost, it is easy production, easily realize and it is safe and reliable, it is highly practical.
Description
Technical field
The utility model is related to a kind of novel differential cylinder structures.
Background technology
Traditional differential cylinder is mostly differential using the differential and external oil circuit in gap.Gap is differential mainly by in-oil cylinder
Diameter change progress is differential, there is the characteristics of its is simple in structure, good seal performance.But its maximum deficiency is to run to when piston
During one end of major diameter, the supporting-point of oil cylinder inner piston rod only has one end, and the other end is in suspended state, inclines when oil cylinder is in
During ramp-like state, the sealing element at supporting-point end easily damages, thus is only suitable for vertical operation.External oil circuit differential cylinder then can
Solve gap differential cylinder this defect, but external oil pipe in in-oil cylinder interface the fragile sealing element when piston passes through,
In addition oil circuit is increased outside cylinder body so that the leakage factor of oil cylinder increases, so causing external oil circuit differential cylinder sealing performance
Difference, manufacture difficulty improve.Therefore, it is necessary to it is further improved.
Utility model content
The purpose of this utility model be intended to provide it is a kind of it is simple and reasonable, have excellent performance, be easy to use, manufacture cost
Low, easy production, easily realization and safe and reliable novel differential cylinder structure, to overcome shortcoming of the prior art.
By a kind of novel differential cylinder structure that this purpose designs, including oil cylinder, oil pump, fuel tank, the big chamber of oil cylinder passes through oil
Pipe is connected with oil pump, and oil pump is connected by oil pipe with fuel tank, and the small chamber of oil cylinder is connected by oil pipe with fuel tank, it is characterised in that：Also
Including the first solenoid valve, check valve, leading hydraulic control one-way valve and second solenoid valve；Wherein, the first solenoid valve is 3-position 4-way
Formula, and be connected respectively with check valve, leading hydraulic control one-way valve, second solenoid valve, oil cylinder, oil pump, second solenoid valve is two
Tubing type, and be connected respectively with the first solenoid valve, check valve, leading hydraulic control one-way valve, oil pump, fuel tank.
First solenoid valve is the 3-position 4-way formula reversal valve of 16mm latus rectums, and middle position base can be J-type, be provided with the
One oil outlet, the second oil outlet, the first oil inlet and the first oil return opening；Wherein, the first oil outlet passes through oil pipe and the big chamber of oil cylinder
Be connected, the second oil outlet is connected by oil pipe with the small chamber of oil cylinder, the first oil inlet by oil pipe respectively with oil pump, check valve one
End, second solenoid valve be connected, the first oil return opening by oil pipe respectively with the check valve other end, leading hydraulic control one-way valve one end phase
Even.
The second solenoid valve is two tubing type solenoid valves of 6mm latus rectums, and middle position base can be D types, be provided with the
Three oil outlets, the 4th oil outlet, the second oil inlet and the second oil return opening；Wherein, the 3rd oil outlet is connected by oil pipe with fuel tank,
4th oil outlet is connected by oil pipe with the first oil inlet, oil pump, check valve one end respectively, and the second oil return opening passes through oil pipe and elder generation
Conduction hydraulic control one-way valve one end is connected.
The check valve is board-like or plug-in one-way valve, metered flow about 300L/min, and its one end passes through oil pipe point
Be not connected with the first oil inlet, oil pump, the 4th oil outlet, the other end by oil pipe respectively with the first oil return opening, pilot-operated type hydraulic control
Check valve one end is connected.
The leading hydraulic control one-way valve be board-like or plug-in one-way valve, metered flow about 300L/min, its one end
Be connected respectively with check valve one end, the first oil return opening by oil pipe, the other end by oil pipe respectively with the second oil return opening, fuel tank phase
Even.
The utility model is by the improvement of said structure, in use, when the first solenoid valve obtains electric, second solenoid valve must not electricity
When, oil cylinder perform it is normal stretch out retraction action, obtain electric when the first solenoid valve stretches out direction in oil cylinder, while second solenoid valve obtains
When electric, oil cylinder performs differential effect, and it is being 16mm in face of latus rectum to make this structure, when flow is the operating mode of 300L/min or so, is done
Go out simple in structure, the operation is stable, differential effect at low cost greatly meets the use demand of user.It is with structure letter
It is single rationally, have excellent performance, be easy to use, manufacturing at low cost, easy production, easily realizing and it is safe and reliable the features such as, it is highly practical.
Description of the drawings
Fig. 1 is the utility model first embodiment structure diagram.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments.
Referring to Fig. 1, the utility model differential cylinder structure, including oil cylinder 5, oil pump 6, fuel tank 7,5 big chamber of oil cylinder by oil pipe with
Oil pump 6 is connected, and oil pump 6 is connected by oil pipe with fuel tank 7, and 5 small chamber of oil cylinder is connected by oil pipe with fuel tank 7.This structure further includes
First solenoid valve 1, check valve 2, leading hydraulic control one-way valve 3 and second solenoid valve 4；Wherein, the first solenoid valve 1 is 3-position 4-way
Formula, and be connected respectively with check valve 2, leading hydraulic control one-way valve 3, second solenoid valve 4, oil cylinder 5, oil pump 6, second solenoid valve 4
For two tubing types, and it is connected respectively with the first solenoid valve 1, check valve 2, leading hydraulic control one-way valve 3, oil pump 6, fuel tank 7.
Further speaking, the first solenoid valve 1 is the 3-position 4-way formula reversal valve of 16mm latus rectums, and middle position base can be J-type, thereon
It is provided with the first oil outlet A1, the second oil outlet B1, the first oil inlet P 1 and the first oil return inlet T 1；Wherein, the first oil outlet A1
It is connected by oil pipe with 5 big chamber of oil cylinder, the second oil outlet B1 is connected by oil pipe with 5 small chamber of oil cylinder, and the first oil inlet P 1 passes through
Oil pipe is connected respectively with oil pump 6,2 one end of check valve, second solenoid valve 4, the first oil return inlet T 1 by oil pipe respectively with check valve 2
The other end, 3 one end of leading hydraulic control one-way valve are connected.
Further speaking, second solenoid valve 4 is two tubing type solenoid valves of 6mm latus rectums, and middle position base can be D types, thereon
It is provided with the 3rd oil outlet A2, the 4th oil outlet B2, the second oil inlet P 2 and the second oil return inlet T 2；Wherein, the 3rd oil outlet A2
Be connected by oil pipe with fuel tank 7, the 4th oil outlet B2 by oil pipe respectively with the first oil inlet P 1, oil pump 6,2 one end of check valve
It is connected, the second oil return inlet T 2 is connected by oil pipe with 3 one end of leading hydraulic control one-way valve.
Further speaking, check valve 2 is board-like or plug-in one-way valve, and metered flow about 300L/min, its one end leads to
Oil pipe is crossed respectively with the first oil inlet P 1, oil pump 6, the 4th oil outlet B2 to be connected, the other end by oil pipe respectively with the first oil return
Mouth T1,3 one end of leading hydraulic control one-way valve are connected.
Further speaking, leading hydraulic control one-way valve 3 be board-like or plug-in one-way valve, metered flow about 300L/
Min, its one end are connected by oil pipe with 2 one end of check valve, the first oil return inlet T 1 respectively, and the other end is by oil pipe respectively with second
Oil return inlet T 2, fuel tank 7 are connected.
Its operation principle is as follows：
First solenoid valve 1 it is electric, second solenoid valve 4 must not electricity, oil cylinder 5, which performs, normal stretches out retraction action.Due to elder generation
Conduction hydraulic control one-way valve 3 controls the high pressure oil of the oily pumping hole for connecting oil cylinder 5 always, and leading hydraulic control one-way valve 3 is in open shape
State, therefore oil cylinder 5 stretches, oil return can flow into fuel tank 7 normal through leading hydraulic control one-way valve 3.
First solenoid valve 1 oil cylinder 5 stretch out direction obtain it is electric, while second solenoid valve 4 it is electric, oil cylinder holds 5 row differential effects.
Since second solenoid valve 4 obtains conductance the control oil of leading hydraulic control one-way valve 3 is caused to connect fuel tank 7, so that pilot-operated type hydraulic control list
It is closed to valve 3, oil cylinder 5 stretches out and small chamber can not flow into fuel tank 7 by leading hydraulic control one-way valve 3, and at this moment 5 small chamber of oil cylinder builds the pressure
It can be more than the pressure of big chamber, and then open check valve 2, fluid squeezes into big chamber, so as to fulfill differential effect.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.Ability
The technical staff in domain should be recognized that the present utility model is not limited to the above embodiments, described in the above embodiment and specification
Simply illustrate the principle of the utility model, the utility model also has on the premise of not departing from the spirit and scope of the utility model
Various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The requires of the utility model
Protection domain is defined by appended claims and its equivalent.
Claims (5)
1. a kind of novel differential cylinder structure, including oil cylinder (5), oil pump (6), fuel tank (7), the big chamber of oil cylinder (5) by oil pipe with
Oil pump (6) is connected, and oil pump (6) is connected by oil pipe with fuel tank (7), and oil cylinder (5) small chamber is connected by oil pipe with fuel tank (7),
It is characterized in that：Further include the first solenoid valve (1), check valve (2), leading hydraulic control one-way valve (3) and second solenoid valve (4)；Its
In, the first solenoid valve (1) be 3-position 4-way formula, and respectively with check valve (2), leading hydraulic control one-way valve (3), second solenoid valve
(4), oil cylinder (5), oil pump (6) are connected, and second solenoid valve (4) is two tubing types, and respectively with the first solenoid valve (1), unidirectional
Valve (2), leading hydraulic control one-way valve (3), oil pump (6), fuel tank (7) are connected.
2. novel differential cylinder structure according to claim 1, it is characterised in that：First solenoid valve (1) is 16mm
The 3-position 4-way formula reversal valve of latus rectum, middle position base can be J-type, be provided with the first oil outlet (A1), the second oil outlet (B1),
First oil inlet (P1) and the first oil return opening (T1)；Wherein, the first oil outlet (A1) is connected by oil pipe with the big chamber of oil cylinder (5),
Second oil outlet (B1) is connected by oil pipe with oil cylinder (5) small chamber, the first oil inlet (P1) by oil pipe respectively with oil pump (6),
Check valve (2) one end, second solenoid valve (4) B2 are connected, the first oil return opening (T1) by oil pipe respectively with check valve (2) one end,
Leading hydraulic control one-way valve (3) one end is connected.
3. novel differential cylinder structure according to claim 2, it is characterised in that：The second solenoid valve (4) is led to for 6mm
Two tubing type solenoid valves in footpath, middle position base can be D types, be provided with the 3rd oil outlet (A2), the 4th oil outlet (B2), the
Two oil inlets (P2) and the second oil return opening (T2)；Wherein, the 3rd oil outlet (A2) is connected by oil pipe with fuel tank (7), and the 4th goes out
Hydraulic fluid port (B2) is connected by oil pipe with the first oil inlet (P1), oil pump (6), check valve (2) one end respectively, the second oil return opening (T2)
It is connected by oil pipe with leading hydraulic control one-way valve (3) one end.
4. novel differential cylinder structure according to claim 3, it is characterised in that：The check valve (2) is board-like or slotting
Dress formula check valve, metered flow about 300L/min, its one end by oil pipe respectively with the first oil inlet (P1), oil pump (6),
Four oil outlets (B2) be connected, the other end by oil pipe respectively with the first oil return opening (T1), leading hydraulic control one-way valve (3) one end phase
Even.
5. novel differential cylinder structure according to claim 4, it is characterised in that：The leading hydraulic control one-way valve (3)
For board-like or plug-in one-way valve, metered flow about 300L/min, its one end by oil pipe respectively with check valve (2) one end,
First oil return opening (T1) is connected, and the other end is connected by oil pipe with the second oil return opening (T2), fuel tank (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721240286.6U CN207393598U (en) | 2017-09-25 | 2017-09-25 | A kind of novel differential cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721240286.6U CN207393598U (en) | 2017-09-25 | 2017-09-25 | A kind of novel differential cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393598U true CN207393598U (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721240286.6U Active CN207393598U (en) | 2017-09-25 | 2017-09-25 | A kind of novel differential cylinder structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243554A (en) * | 2019-05-15 | 2019-09-17 | 山东星奥液压机械有限公司 | A kind of hydraulic cylinder tightness measuring device and its application |
-
2017
- 2017-09-25 CN CN201721240286.6U patent/CN207393598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110243554A (en) * | 2019-05-15 | 2019-09-17 | 山东星奥液压机械有限公司 | A kind of hydraulic cylinder tightness measuring device and its application |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 22, Keyuan 3rd Road, Shunde High tech Zone (Ronggui), Shunde District, Foshan, Guangdong 528300 Patentee after: Guangdong Yizhimi Precision Rubber and Plastic Equipment Technology Co.,Ltd. Address before: No. 22, Keyuan 3rd Road, Shunde High tech Zone (Ronggui), Shunde District, Foshan, Guangdong 528300 Patentee before: GUANGDONG YIZHIMI PRECISION MACHINERY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |