CN205530414U - Skid -steer loader swing arm hydraulic system that falls that stalls - Google Patents
Skid -steer loader swing arm hydraulic system that falls that stalls Download PDFInfo
- Publication number
- CN205530414U CN205530414U CN201620066406.4U CN201620066406U CN205530414U CN 205530414 U CN205530414 U CN 205530414U CN 201620066406 U CN201620066406 U CN 201620066406U CN 205530414 U CN205530414 U CN 205530414U
- Authority
- CN
- China
- Prior art keywords
- valve
- swing arm
- mouth
- pressure
- falls
- 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.)
- Active
Links
- 239000003921 oil Substances 0.000 claims description 20
- 239000010720 hydraulic oil Substances 0.000 claims description 16
- 230000002411 adverse Effects 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Abstract
The utility model discloses a skid -steer loader swing arm hydraulic system that falls that stalls, including boom cylinder, first check valve, pressure selection valve, ball valve, solenoid valve, hydraulic tank, guide's pump, second check valve, when skid -steer loader has pressure oil to get into the pilot valve, push away the pilot valve handle before the operator, the swing arm jar does not have the oil stream play of pole intracavity, realizes the swing arm promptly. Stop aloft when the skid -steer loader swing arm, when the flame -out and storage battery of engine had the electricity, guide's pump did not have pressure oil output, and the solenoid valve gets electricly, and the pressure oil that the swing arm jar does not have the pole chamber passes through check valve, pressure selection valve, solenoid valve entering pilot valve in proper order, pushes away the pilot valve handle before the operator and can realize the swing arm that falls that stops working, stop aloft when the skid -steer loader swing arm, the engine is flame -out and the circuit is obstructed or even storage battery when not having the electricity, can open the ball valve, makes oil that the swing arm jar does not have the pole intracavity behind check valve, pressure selection valve, directly through the ball valve oil sump tank, realizes that the swing arm falls.
Description
Technical field
This utility model relates to a kind of sliding loader hydraulic system, is specifically related to a kind of sliding loader and stops working the swing arm hydraulic system that falls.
Background technology
Sliding loader is got on or off the bus and to be passed in and out before driver's cabin, cab door be just contained in driver's cabin just before, if swing arm is not at lowest order, cab door cannot be opened.If movable arm of slippage shovel loader aloft time electromotor accident extinguishing, and cannot restart, driver cannot be out in being just trapped in driver's cabin.
Utility model content
Purpose: in order to overcome the deficiencies in the prior art, this utility model provides a kind of sliding loader to stop working the swing arm hydraulic system that falls, by configuring this hydraulic system, make movable arm of slippage shovel loader electromotor accident extinguishing aloft, and cannot restart, when even service interruption or storage battery do not have electricity, swing arm can easily be fallen by the driver being sitting in driver's cabin, open the door from driver's cabin out, ensure driver's personal safety.
Technical scheme: for solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of sliding loader stops working the swing arm hydraulic system that falls, it is characterized in that: include boom cylinder, the first check valve, pressure selection valve, ball valve, electromagnetic valve, hydraulic oil container, pioneer pump, the second check valve, the inlet port of pioneer pump is connected with hydraulic oil container, the oil-out of pioneer pump is connected with pressure selection valve P1 mouth by the second check valve, forms one-way passage；Boom cylinder rodless cavity is drawn a road binders and is connected with pressure selection valve P3 mouth by the first check valve, forms one-way passage, and oil circuit can not adverse current；Pressure selection valve P2 mouth is connected with ball valve a mouth and electromagnetic valve P mouth respectively, and ball valve b mouth is connected with hydraulic oil container；Electromagnetic valve A mouth is connected with pilot valve, and electromagnetic valve T mouth is connected with hydraulic oil container.
Above-mentioned pressure selection valve original state spool is positioned at right position；The spool of pressure selection valve is set to change with the pressure of P2 mouth and move left and right, it is possible to make the pressure that the maintenance of P2 mouth is certain, to provide the pressure oil of pilot valve desirable pressure.During sliding loader work, along with the rising of P2 pressure, spool can gradually move to left, and P1, the oil circuit of P3 to P2 progressively close off, when P2 mouth pressure reaches 2.5MPa, spool is positioned at left position, and P1, P3 cannot be to P2 fuel feeding, P2 mouth pressure declines, and spool gradually moves to right, and P1, the oil circuit of P3 to P2 are gradually opened.Spool moves left and right with the pressure of P2 mouth, changes the openings of sizes of P1, P3 to P2 oil circuit, makes P2 mouth maintain about 2.5MPa pressure.
Above-mentioned electromagnetic valve original state spool is positioned at left position, and P mouth is obstructed.
Above-mentioned ball valve original state is closed, and after opening ball valve, pressure oil directly can flow back to hydraulic oil container by ball valve.In pilot valve, pressure oil enters from A mouth, flows back to hydraulic oil container through T mouth；When obtaining electric, T mouth is obstructed, and the pressure oil of pressure selection valve P2 mouth enters from P mouth, enters pilot valve through A mouth.
Beneficial effect: a kind of sliding loader that this utility model provides stops working the swing arm hydraulic system that falls, and compared with the sliding loader not configuring native system, the sliding loader being configured with native system has the advantage that
1, swing arm does not drops to lowest order, and when starting abnormal misfire and cannot restart, swing arm can easily be fallen by the driver being sitting in driver's cabin, opens the door from driver's cabin out, ensures driver's personal safety；
2, swing arm does not drops to lowest order, starts abnormal misfire and cannot restart, and during simultaneously because service interruption or storage battery do not have electricity, swing arm can easily be fallen by the driver being sitting in driver's cabin, opens the door from driver's cabin out, ensures driver's personal safety；
3, slip up due to operator, when swing arm not being down to lowest order just by engine misses, it is not necessary to restart electromotor, just can easily swing arm be fallen, open the door from driver's cabin out, energy-conservation fuel-efficient, extend the starting-motor of engine life-span.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model；
In figure: 1 boom cylinder, 2 check valves, 3 pressure selection valves, 4 ball valves, 5 electromagnetic valves, 6 hydraulic oil containers, 7 pioneer pumps, 8 check valves.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is further described.
The swing arm hydraulic system that falls as it is shown in figure 1, a kind of sliding loader stops working, including:
Work process of the present utility model is as follows: when swing arm is suspended in the air, engine misses, and electrical system is normal, and ball valve 4 is not switched on, and when electromagnetic valve 5 obtains electric, the P mouth of electromagnetic valve 5 and A mouth lead to, and T mouth is obstructed, and pioneer pump 7 does not has pressure oil to export.Swing arm is by effect of weight, boom cylinder 1 is produced pressure, the hydraulic oil in swing arm cylinder rodless cavity is made to produce pressure, the P3 mouth of pressure selection valve 3 is entered by the first check valve 2, selector valve 3 is according to P2 mouth pressure, regulate spool position in real time, the pressure oil making P2 mouth stably export about 2.5MPa enters a mouth and the P mouth of electromagnetic valve 5 of ball valve 4, now ball valve 4 is obstructed, pressure oil enters pilot valve through the A mouth of electromagnetic valve 5, push away pilot valve handle before being now sitting in the driver in driver's cabin, swing arm can be fallen.
When swing arm is suspended in the air, engine misses, electrical system is abnormal, and ball valve 4 is not switched on, electromagnetic valve 5 must not electricity time, the T mouth of electromagnetic valve 5 and A mouth lead to, and P mouth is obstructed, and the oil in pilot valve enters hydraulic oil container 6 through the T mouth of electromagnetic valve 5, and pioneer pump 7 does not has pressure oil to export.Swing arm is by effect of weight, boom cylinder 1 is produced pressure, the hydraulic oil in swing arm cylinder rodless cavity is made to produce pressure, the P3 mouth of pressure selection valve 3 is entered by the first check valve 2, selector valve 3 is according to P2 mouth pressure, regulate spool position in real time, it is that P2 mouth stably exports the pressure oil of about 2.5MPa and enters ball valve 4a mouth and the P mouth of electromagnetic valve 5, now the P mouth of electromagnetic valve 5 is obstructed, pressure oil cannot enter pilot valve by electromagnetic valve 5, second check valve 8 guarantees that oil circuit is irreversible, the driver being sitting in driver's cabin can open ball valve 4, pressure oil is made to enter a mouth of ball valve 4, b mouth entrance hydraulic oil container 6 through ball valve 4, swing arm can be fallen.The above is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (5)
1. a sliding loader stops working the swing arm hydraulic system that falls, it is characterized in that: include boom cylinder (1), the first check valve (2), pressure selection valve (3), ball valve (4), electromagnetic valve (5), hydraulic oil container (6), pioneer pump (7), the second check valve (8), the inlet port of pioneer pump (7) is connected with hydraulic oil container (6), the oil-out of pioneer pump (7) is connected with pressure selection valve (3) P1 mouth by the second check valve (8), forms one-way passage；Boom cylinder (1) rodless cavity is drawn a road binders and is connected with pressure selection valve (3) P3 mouth by the first check valve (2), forms one-way passage, and oil circuit can not adverse current；Pressure selection valve (3) P2 mouth is connected with ball valve (4) a mouth and electromagnetic valve (5) P mouth respectively, and ball valve (4) b mouth is connected with hydraulic oil container (6)；Electromagnetic valve (5) A mouth is connected with pilot valve, and electromagnetic valve (5) T mouth is connected with hydraulic oil container (6).
Sliding loader the most according to claim 1 stops working the swing arm hydraulic system that falls, it is characterised in that: described pressure selection valve (3) original state spool is positioned at right position.
Sliding loader the most according to claim 1 stops working the swing arm hydraulic system that falls, it is characterized in that: the spool of described pressure selection valve (3) is set to change with the pressure of P2 mouth and move left and right, the pressure that the maintenance of P2 mouth is certain can be made, to provide the pressure oil of pilot valve desirable pressure.
Sliding loader the most according to claim 1 stops working the swing arm hydraulic system that falls, it is characterised in that: described electromagnetic valve (5) original state spool is positioned at left position, and P mouth is obstructed.
Sliding loader the most according to claim 1 stops working the swing arm hydraulic system that falls, it is characterised in that: described ball valve (4) original state is closed, and after opening ball valve, pressure oil directly can flow back to hydraulic oil container (6) by ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066406.4U CN205530414U (en) | 2016-01-25 | 2016-01-25 | Skid -steer loader swing arm hydraulic system that falls that stalls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066406.4U CN205530414U (en) | 2016-01-25 | 2016-01-25 | Skid -steer loader swing arm hydraulic system that falls that stalls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205530414U true CN205530414U (en) | 2016-08-31 |
Family
ID=56768900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620066406.4U Active CN205530414U (en) | 2016-01-25 | 2016-01-25 | Skid -steer loader swing arm hydraulic system that falls that stalls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205530414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525641A (en) * | 2016-01-25 | 2016-04-27 | 徐州徐工特种工程机械有限公司 | Movable arm dropping hydraulic system used for skid steer loader in case of flameout |
-
2016
- 2016-01-25 CN CN201620066406.4U patent/CN205530414U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525641A (en) * | 2016-01-25 | 2016-04-27 | 徐州徐工特种工程机械有限公司 | Movable arm dropping hydraulic system used for skid steer loader in case of flameout |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204704167U (en) | Double loop energy storage type hydraulic control slow closing valve hydraulic station | |
| CN106051145A (en) | Vehicle door opening walking forbidding system | |
| CN206320090U (en) | A kind of control device of high-speed hydraulic motor | |
| CN205530414U (en) | Skid -steer loader swing arm hydraulic system that falls that stalls | |
| CN103821580B (en) | Variable control method and system for oil pump with variable displacement | |
| CN204982991U (en) | Excavator swing arm decline hydraulic control system | |
| CN103362899B (en) | Guide, heat radiation integrated hydraulic system and loader | |
| CN201050076Y (en) | Lead operation valve oil supplying system | |
| CN104475854A (en) | Hydraulic control system of gate type shearing machine with one electromagnetic valve | |
| CN204175686U (en) | A kind of bender hydraulic system | |
| CN208503126U (en) | A kind of repairing switching valve for enclosed and open system switching | |
| CN105525641A (en) | Movable arm dropping hydraulic system used for skid steer loader in case of flameout | |
| CN207047941U (en) | A kind of small type hydraulic excavator pilot control valve group and small type hydraulic excavator | |
| CN203373114U (en) | Tube explosion resistant oil hydraulic circuit of vertical lifting mechanism | |
| CN205388059U (en) | Novel bull -dozer work device | |
| CN209412883U (en) | A kind of excavator dipper core assembly with regeneration cutting function | |
| CN204783383U (en) | Quick oil -break parking equipment of diesel engine | |
| CN205296269U (en) | Excavator swing arm potential energy regeneration system | |
| CN203403957U (en) | Emergency shutdown system for cutting and emptying diesel engine fuel feed | |
| CN210565410U (en) | Switch control gas circuit system for box cover | |
| CN102529928A (en) | Aerodynamic braking hydraulic system | |
| CN208324110U (en) | A kind of injection moulding machine mode-locking oil circuit buffering positioning system | |
| CN205991225U (en) | A kind of sector gate hydraulic ore drawing device | |
| CN207777315U (en) | Oil sources regenerating unit and cylinder control device | |
| CN205937261U (en) | Wheel loader quick change device emergency control hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231013 Address after: 221004 No.99, Kunpeng North Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: XCMG CONSTRUCTION MACHINERY Co.,Ltd. SCIENCE AND TECHNOLOGY BRANCH Address before: No. 99 Guangde Road, Jinshanqiao Economic Development Zone, Xuzhou City, Jiangsu Province, 221000 Patentee before: XUZHOU XUGONG SPECIAL CONSTRUCTION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |