CN206092579U - Loader hydraulic system swing arm double oil cylinder locking mechanism - Google Patents
Loader hydraulic system swing arm double oil cylinder locking mechanism Download PDFInfo
- Publication number
- CN206092579U CN206092579U CN201621104731.1U CN201621104731U CN206092579U CN 206092579 U CN206092579 U CN 206092579U CN 201621104731 U CN201621104731 U CN 201621104731U CN 206092579 U CN206092579 U CN 206092579U
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- Prior art keywords
- way valve
- oil cylinder
- swing arm
- hydraulic system
- valve
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Abstract
The utility model discloses a loader hydraulic system swing arm double oil cylinder locking mechanism, include: master cylinder and vice hydro -cylinder, the master cylinder is parallel to each other with vice hydro -cylinder, and both ends are equallyd divide and are do not set up on the swing arm and frame of loader, the master cylinder have pole chamber and no pole chamber respectively with A, the B interface connection of first three -position four -way valve, the pressure port P and loader hydraulic system's the working barrel of first three -position four -way valve are connected, the A of first three -position four -way valve, a, the B interface that B oil duct interface still was connected to the second three -position four -way valve respectively are connected to T oil duct interface with the oil tank, vice hydro -cylinder have pole chamber and nos pole chamber respectively with P, the T interface connection of second three -position four -way valve, and have pole chamber and nos pole chamber to communicate within a definite time and be connected with your two -port valve, you are connected to the oil tank by the two -port valve. The utility model discloses a dual hydraulic cylinder's structural style makes two pneumatic cylinders link, the time load lift arm carry out the auto -lock, the auto -lock is efficient, stability is stronger.
Description
Technical field
The utility model is related to loader hydraulic system, the double oil cylinder locking machines of specifically a kind of loader hydraulic system swing arm
Structure.
Background technology
Loading machine is that a kind of cubic metre of earth and stone for being widely used in the construction projects such as highway, railway, building, water power, harbour, mine is applied
Work machinery, it is mainly used in the bulk materials such as shovel dress soil, sandstone, lime, coal, and slight shovel also can be made to ore, pan soil etc.
Dig operation.The different auxiliary working apparatus that change the outfit can also be bulldozed, lifting and the handling operation of unclassified stores such as timber.In road
Road, particularly in Expressway Construction, what loading machine was used for subgrade engineering fills out digging, asphalt and coagulating cement earth material
Gather materials with charging etc. operation.Additionally can carry out pushing soil, scrape plane earth and drawing the operations such as other machineries.Due to dress
Carrier aircraft has the advantages that operating speed is fast, efficiency high, mobility are good, operation is light, therefore it becomes the cubic metre of earth and stone in engineering construction
One of main machine of construction.
Loader hydraulic system as shown in figure 1, swing arm cylinder distributes flow by distributing valve, and using one-way throttle valve control
Flow, one-way throttle valve realizes the locking of swing arm cylinder with reversal valve linkage.Due to the restriction of technical merit and manufacture level, hydraulic pressure
Oil cylinder is more or less after self-locking to occur certain interior leakage, cause loading arm occur it is certain sink, affect work
Efficiency, also has certain danger to personal safety.And how to improve loading machine self-locking property is also that those skilled in the art compel
Cut the problem for wishing to solve.
Utility model content
The purpose of this utility model is to provide a kind of loader hydraulic system swing arm double oil cylinder locking mechanisms, with solution
State the problem proposed in background technology.
For achieving the above object, the utility model provides following technical scheme：
A kind of double oil cylinder locking mechanisms of loader hydraulic system swing arm, including：Master cylinder and auxiliary oil cylinder, the master cylinder and
Auxiliary oil cylinder is parallel to each other, and two ends are respectively arranged on the swing arm and frame of loading machine；The rod chamber and rodless cavity of master cylinder
A respectively with the first three-position four-way valve, B interface are connected, pressure port P of the first three-position four-way valve and the work of loader hydraulic system
Make pump connection, T oil duct interfaces to be connected with fuel tank, A, B oil duct interface of the first three-position four-way valve is further connected to the two or three
The A of cross valve, B interface, when the first 3-position 4-way valve core is located at left position and right position, during the valve element of the second three-position four-way valve is located at
Position, when the first 3-position 4-way valve core is located at middle position, the valve element of the second three-position four-way valve is located at left position；The rod chamber of auxiliary oil cylinder and
Rodless cavity is connected respectively with P, T interface of the second three-position four-way valve, and connection and and two position two-way valve between rod chamber and rodless cavity
Connection, two position two-way valve is connected to fuel tank, when the first 3-position 4-way valve core is located at middle position, between two interfaces of two position two-way valve
Disconnect, when the first 3-position 4-way valve core is located at left position or right position, two orifices of two position two-way valve.
As further program of the utility model：Check valve is set between the rod chamber and rodless cavity of the auxiliary oil cylinder,
The circulating direction of the check valve is to point to rodless cavity by rod chamber.
As further program of the utility model：First three-position four-way valve and the second three-position four-way valve are electromagnetism
Control reversal valve, its control circuit is connected in the controller of loader hydraulic system.
As further program of the utility model：The middle-position machine of first three-position four-way valve and the second three-position four-way valve
" O " type function can be.
As further program of the utility model：Also set up between the working barrel and the first three-position four-way valve and include dress
The banked direction control valves of carrier aircraft swing arm hydraulic circuit.
Compared with prior art, the beneficial effects of the utility model are：The structure shape that the utility model passes through double hydraulic cylinder
Formula, makes two hydraulic cylinders be linked, when loading arm carry out self-locking, self-locking efficiency high, stability is higher.
Description of the drawings
Fig. 1 is the structure principle chart of loader hydraulic system.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is hydraulic structure schematic diagram of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.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 for being obtained, belongs to the scope of the utility model protection.
Fig. 1～3 are referred to, in the utility model embodiment, a kind of double oil cylinder locking mechanisms of loader hydraulic system swing arm,
Including：Master cylinder 3 and auxiliary oil cylinder 2, the master cylinder 3 and auxiliary oil cylinder 2 are parallel to each other, and two ends are respectively arranged on loading machine
On swing arm 1 and frame 4；The rod chamber and rodless cavity of master cylinder 3 A respectively with the first three-position four-way valve 10, B interface are connected, and
Pressure port P of one three-position four-way valve 10 is connected with the working barrel 5 of loader hydraulic system, T oil ducts interface is connected with fuel tank 6, the
A, B oil duct interface of one three-position four-way valve 10 is further connected to A, the B interface of the second three-position four-way valve 9, the first 3-position 4-way
Work relationship between the three-position four-way valve 9 of valve 10 and second is：When the valve element of first three-position four-way valve 10 is located at left position and right position, second
The valve element of three-position four-way valve 9 is located at middle position, when the valve element of the first three-position four-way valve 10 is located at middle position, the valve of the second three-position four-way valve 9
Core be located at left position, i.e. the first three-position four-way valve 10 left position electromagnet 101 or right position electromagnet 102 it is electric when, the two or three four
The left dead electricity of position electromagnet 91 of port valve 9, and the left position electromagnet 101 of the first three-position four-way valve 10 or the right dead electricity of position electromagnet 102
When, the left position electromagnet 91 of the second three-position four-way valve 9 obtains electric；The rod chamber and rodless cavity of auxiliary oil cylinder 2 respectively with the two or three four
P, T interface connection of port valve 9, and connect and be connected with two position two-way valve 7 between rod chamber and rodless cavity, two position two-way valve 7 connects
To fuel tank 6, two position two-way valve 7 is with the work relationship of three-position four-way valve：When the valve element of first three-position four-way valve 10 is located at middle position, two
Two interfaces of position two-port valve 7 are separated, when the valve element of the first three-position four-way valve 10 is located at left position or right position, two position two-way valve 7
When the left position electromagnet 101 or right position electromagnet 102 of two orifices, i.e. the first three-position four-way valve 10 obtains electric, bi-bit bi-pass
The power-off of electromagnet 71 of valve 7, when the left position electromagnet 101 of the first three-position four-way valve 10 or right 102 dead electricity of position electromagnet, two two
The electromagnet 71 of port valve 7 obtains electric, pushes valve element to closing position.
Check valve 8 is set between the rod chamber and rodless cavity of the auxiliary oil cylinder 2, and the circulating direction of the check valve 8 is served as reasons
Rod chamber points to rodless cavity.
The three-position four-way valve 9 of first three-position four-way valve 10 and second is solenoid controlled directional control valve, and its control circuit connects
In being connected to the controller of loader hydraulic system, loader hydraulic control mode and principle are mature technology, no longer go to live in the household of one's in-laws on getting married herein
State.
The Median Function of the three-position four-way valve 9 of first three-position four-way valve 10 and second is " O " type function.
The banked direction control valves for including loading arm hydraulic circuit is also set up between the three-position four-way valve 10 of the working barrel 5 and first
11。
Operation principle of the present utility model is：When first three-position four-way valve 10 is in left and right position, now master cylinder 3 is in work
Make state, drive loading arm motion, and master cylinder 3 is separated with auxiliary oil cylinder 2, auxiliary oil cylinder 2 is directly connected with fuel tank 6,
The piston rod movement of auxiliary oil cylinder 2 is pulled in swing arm motion process by swing arm, when the first three-position four-way valve 10 is in middle position, now
Master cylinder 3 is locked, and the valve element of the second three-position four-way valve 9 is in left position, make the rod chamber and rodless cavity of master cylinder 3 respectively with pair
The rod chamber of oil cylinder 2 is connected with rodless cavity, and two position two-way valve 7 makes auxiliary oil cylinder 7 disconnect with fuel tank 6, and master cylinder 3 is locked to swing arm
Be supported, if master cylinder 3 occur in let out when causing its piston rod to move, can be by hydraulic oil press-in auxiliary oil cylinder 2 in rodless cavity
In rodless cavity, and auxiliary oil cylinder 2 is now also subject to the pressure of swing arm, and in its rodless cavity after repairing, auxiliary oil cylinder 2 replaces master cylinder 3 pairs
Swing arm is supported, and in the same manner, auxiliary oil cylinder 2 occurs that self-locking support will be carried out by master cylinder 3 during interior letting out, and is achieved in that double hydraulic cylinder joins
Dynamic locking, makes the self-locking of swing arm relatively reliable.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as restriction
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity those skilled in the art should
Using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (5)
1. the double oil cylinder locking mechanism of a kind of loader hydraulic system swing arm, including：Master cylinder and auxiliary oil cylinder, it is characterised in that：Institute
State master cylinder and auxiliary oil cylinder is parallel to each other, and two ends are respectively arranged on the swing arm and frame of loading machine；Master cylinder has a bar
Chamber and rodless cavity A respectively with the first three-position four-way valve, B interface are connected, pressure port P and the loading machine liquid of the first three-position four-way valve
The working barrel connection of pressure system, T oil duct interfaces are connected with fuel tank, and A, B oil duct interface of the first three-position four-way valve is also respectively connected with
A, B interface to the second three-position four-way valve, when the first 3-position 4-way valve core is located at left position and right position, the second three-position four-way valve
Valve element is located at middle position, and when the first 3-position 4-way valve core is located at middle position, the valve element of the second three-position four-way valve is located at left position；Auxiliary oil cylinder
Rod chamber and rodless cavity be connected with P, T interface of the second three-position four-way valve respectively, and between rod chamber and rodless cavity connection and with
Two position two-way valve connects, and two position two-way valve is connected to fuel tank, when the first 3-position 4-way valve core is located at middle position, two position two-way valve
Two interfaces are separated, when the first 3-position 4-way valve core is located at left position or right position, two orifices of two position two-way valve.
2. the double oil cylinder locking mechanism of a kind of loader hydraulic system swing arm according to claim 1, it is characterised in that：It is described
Check valve is set between the rod chamber and rodless cavity of auxiliary oil cylinder, and the circulating direction of the check valve is to be pointed to without bar by rod chamber
Chamber.
3. the double oil cylinder locking mechanism of a kind of loader hydraulic system swing arm according to claim 1, it is characterised in that：It is described
First three-position four-way valve and the second three-position four-way valve are solenoid controlled directional control valve, and its control circuit is connected to loader hydraulic system
In the controller of system.
4. the double oil cylinder locking mechanism of a kind of loader hydraulic system swing arm according to claim 1, it is characterised in that：It is described
The Median Function of the first three-position four-way valve and the second three-position four-way valve is " O " type function.
5. the double oil cylinder locking mechanism of a kind of loader hydraulic system swing arm according to claim 1, it is characterised in that：It is described
The banked direction control valves for including loading arm hydraulic circuit is also set up between working barrel and the first three-position four-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104731.1U CN206092579U (en) | 2016-10-08 | 2016-10-08 | Loader hydraulic system swing arm double oil cylinder locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621104731.1U CN206092579U (en) | 2016-10-08 | 2016-10-08 | Loader hydraulic system swing arm double oil cylinder locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092579U true CN206092579U (en) | 2017-04-12 |
Family
ID=58482861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621104731.1U Expired - Fee Related CN206092579U (en) | 2016-10-08 | 2016-10-08 | Loader hydraulic system swing arm double oil cylinder locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206092579U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299655A (en) * | 2017-08-09 | 2017-10-27 | 太原科技大学 | A kind of swing arm decrease speed control loop of excavator |
| CN107461375A (en) * | 2017-08-31 | 2017-12-12 | 江苏凯宫隧道机械有限公司 | Complete-section tunnel boring machine is hinged hydraulic system |
| CN108150465A (en) * | 2018-02-02 | 2018-06-12 | 徐工集团工程机械有限公司 | A kind of impact breaker discharge gate intelligent regulating system and impact breaker |
-
2016
- 2016-10-08 CN CN201621104731.1U patent/CN206092579U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299655A (en) * | 2017-08-09 | 2017-10-27 | 太原科技大学 | A kind of swing arm decrease speed control loop of excavator |
| CN107461375A (en) * | 2017-08-31 | 2017-12-12 | 江苏凯宫隧道机械有限公司 | Complete-section tunnel boring machine is hinged hydraulic system |
| CN107461375B (en) * | 2017-08-31 | 2023-09-22 | 江苏凯宫隧道机械有限公司 | Full-face tunnel boring machine articulated hydraulic system |
| CN108150465A (en) * | 2018-02-02 | 2018-06-12 | 徐工集团工程机械有限公司 | A kind of impact breaker discharge gate intelligent regulating system and impact breaker |
| CN108150465B (en) * | 2018-02-02 | 2023-10-03 | 江苏徐工工程机械研究院有限公司 | Intelligent adjusting system for discharge port of impact crusher and impact crusher |
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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: 20170412 Termination date: 20181008 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |