CN201620434U - Hydraulic circuit device for coordinating body rotation and movable arm swing of digging machine - Google Patents
Hydraulic circuit device for coordinating body rotation and movable arm swing of digging machine Download PDFInfo
- Publication number
- CN201620434U CN201620434U CN2009203532921U CN200920353292U CN201620434U CN 201620434 U CN201620434 U CN 201620434U CN 2009203532921 U CN2009203532921 U CN 2009203532921U CN 200920353292 U CN200920353292 U CN 200920353292U CN 201620434 U CN201620434 U CN 201620434U
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- valve
- revolution
- oil
- swing arm
- operated directional
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Abstract
The utility model discloses a hydraulic circuit device for coordinating body rotation and movable arm swing of a digging machine, which belongs to the hydraulic circuit device of the digging machine and mainly comprises a hydraulic pump, a rotatory motor, a movable arm oil cylinder, a rotatory two-way hydraulic operated directional valve, a movable arm two-way hydraulic operated directional valve and a pilot control branch, wherein the pilot control branch is provided with a rotatory manual pilot valve, a movable arm manual pilot valve, a shuttle valve and a one-way hydraulic operated stop valve; a first throttle valve is arranged between the oil inlet of the shuttle valve and the oil outlet of the rotatory manual pilot valve; and a second throttle valve is arranged between the oil outlet of the shuttle valve and the working port of the one-way hydraulic operated stop valve. The utility model solves the technical problems that the swing speed of a movable arm is low in the body rotation process of the digging machine, and the movements of the movable arm swing and the body rotation are disharmonious. The hydraulic circuit device has reasonable structure and is widely applied to the production manufacturing industry of the digging machine.
Description
Technical field
The utility model relates to a kind of excavator circuit apparatus for hydraulic, relates in particular to a kind of circuit apparatus for hydraulic that is used to coordinate excavator base machine revolution and movable arm swinging.
Background technology
Excavator is to excavate with scraper bowl to be higher or lower than the material that holds machine side, and the haulage vehicle or unload earth moving plant to rickyard of packing into.Hydraulic crawler excavator mainly partly is made up of motor, circuit apparatus for hydraulic, equipment, running gear and electrical control etc.Circuit apparatus for hydraulic is made up of hydraulic pump, control valve, hydraulic cylinder, hydraulic motor, pipeline, fuel tank etc.Electrical control system comprises monitoring panel, engine control system, pump control system, various kinds of sensors, reversal valve etc.
Common in the market excavator mostly is a hydraulic crawler excavator, but problem of ubiquity, excavator in the course of the work, during body rotation, the swing arm hoisting velocity can slow down, revolution and the composite move that promotes are inharmonious, for example, when excavator carries out digging, need be in the process of body rotation the swing arm fast lifting, increasing work efficiency, but existing excavator all can not well be coordinated the composite move that body rotation and swing arm promote, because the needed pressure of body rotation is low, on working connection, the hydraulic oil of hydraulic pump output is preferentially supplied with body rotation, promotes operation thereby influenced swing arm, it is unable or not in place to make that swing arm promotes, and has a strong impact on operating efficiency.
The utility model content
Technical problem to be solved in the utility model is: a kind of circuit apparatus for hydraulic that is used to coordinate excavator base machine revolution and movable arm swinging is provided, slow to solve excavator movable arm swinging speed in the body rotation process, the technical problem of movable arm swinging and body rotation exercise not harmony.
For solving the problems of the technologies described above, the technical solution of the utility model is: be used to coordinate the circuit apparatus for hydraulic of excavator base machine revolution and movable arm swinging, comprise hydraulic pump; Be used to control the rotating rotary motor of fuselage; Be used to control the boom cylinder of movable arm swinging; The hydraulic oil that described hydraulic pump is discharged flows to the two-way pilot operated directional control valve of revolution of rotary motor, the hydraulic oil of described hydraulic pump discharge is flowed to the two-way pilot operated directional control valve of swing arm of described boom cylinder; A revolution guide who is connected with the control port of the two-way pilot operated directional control valve of described revolution controls branch road, described revolution guide controls branch road and is provided with the manual pilot valve of revolution, and the manual pilot valve of described revolution has a left side revolution oil-out and a right-hand rotation oil-out; A swing arm guide who is connected with the control port of the two-way pilot operated directional control valve of described swing arm controls branch road, described swing arm guide controls branch road and is provided with the manual pilot valve of swing arm, and the manual pilot valve of described swing arm has a swing arm rising oil-out and a swing arm decline oil-out; Described revolution guide controls branch road and is provided with shuttle valve and unidirectional fluid-controlled cut-off valve, two oil-ins of described shuttle valve are communicated with two oil-outs of the manual pilot valve of revolution respectively, the oil-out of described shuttle valve is communicated with the actuator port of described unidirectional fluid-controlled cut-off valve, and the control port of described unidirectional fluid-controlled cut-off valve is communicated with the swing arm rising oil-out of the manual pilot valve of described swing arm; Be provided with the first throttle valve between the oil-out of the oil-in of described shuttle valve and the manual pilot valve of described revolution; Be provided with second choke valve between the oil-out of described shuttle valve and the actuator port of described unidirectional fluid-controlled cut-off valve.
As a kind of improvement, two-way pilot operated directional control valve of described revolution and the two-way pilot operated directional control valve of swing arm are three six logical pilot operated directional control valves.
As further improvement, described unidirectional fluid-controlled cut-off valve is the unidirectional pilot operated directional control valve of bi-bit bi-pass.
Owing to adopted technique scheme, the beneficial effects of the utility model are: owing to designed unidirectional fluid-controlled cut-off valve, the manual pilot valve of swing arm, turn round manual pilot valve and shuttle valve, be provided with second choke valve between the oil-out of shuttle valve and the actuator port of unidirectional fluid-controlled cut-off valve, during work, when swing arm rises and revolution (left side revolution or right-hand rotation) when moving simultaneously, the pressure signal that swing arm rises makes unidirectional fluid-controlled cut-off valve transposition, the revolution pilot pressure signal that shuttle valve will retrieve is by second choke valve and unidirectional fluid-controlled cut-off valve oil sump tank, reduce the pressure of main valve revolution connection guide end, the flow that enters rotary motor is reduced, reduce speed of gyration.After guaranteeing that main valve revolution connection pilot pressure releases a part, the two-way pilot operated directional control valve pilot pressure of swing arm is unaffected, between the oil-out of the oil-in of shuttle valve and the manual pilot valve of revolution, be equipped with the first throttle valve, control the left and right rotating pressure of fuselage respectively, coordinated rotation pressure and swing arm pressure, made that swing arm promotes unaffected in the turning course.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model embodiment hydraulic principle schematic diagram;
Among the figure: 1, the two-way pilot operated directional control valve of swing arm, 2, rotary motor, 3, turn round two-way pilot operated directional control valve, 4, unidirectional fluid-controlled cut-off valve, 5, boom cylinder, 6, the first throttle valve, 7, turn round manual pilot valve, 8, the manual pilot valve of swing arm, 9, second choke valve, 10, shuttle valve.
The specific embodiment
As shown in drawings, a kind of circuit apparatus for hydraulic that is used to coordinate excavator base machine revolution and movable arm swinging comprises hydraulic pump; Be used to control the rotating rotary motor 2 of fuselage; Be used to control the boom cylinder 5 of movable arm swinging; The hydraulic oil of described hydraulic pump discharge is flowed to the two-way pilot operated directional control valve 3 of revolution of rotary motor 2, the hydraulic oil that described hydraulic pump is discharged flows to the two-way pilot operated directional control valve 1 of swing arm of described boom cylinder 5, and two-way pilot operated directional control valve 3 of described revolution and the two-way pilot operated directional control valve 1 of swing arm are three six logical pilot operated directional control valves; A revolution guide who is connected with the control port of the two-way pilot operated directional control valve 3 of described revolution controls branch road, described revolution guide controls branch road and is provided with the manual pilot valve 7 of revolution, and the manual pilot valve 7 of described revolution has a left side revolution oil-out and a right-hand rotation oil-out; A swing arm guide who is connected with the control port of the two-way pilot operated directional control valve 1 of described swing arm controls branch road, described swing arm guide controls branch road and is provided with the manual pilot valve 8 of swing arm, and the manual pilot valve 8 of described swing arm has a swing arm rising oil-out and a swing arm decline oil-out; Described revolution guide controls branch road and is provided with shuttle valve 10 and unidirectional fluid-controlled cut-off valve 4, described unidirectional fluid-controlled cut-off valve 4 is the unidirectional pilot operated directional control valves of bi-bit bi-pass, two oil-ins of described shuttle valve 10 are communicated with two oil-outs of the manual pilot valve 7 of revolution respectively, the oil-out of described shuttle valve 10 is communicated with the actuator port of described unidirectional fluid-controlled cut-off valve 4, and the control port of described unidirectional fluid-controlled cut-off valve 4 is communicated with the swing arm rising oil-out of the manual pilot valve 8 of described swing arm; Be provided with first throttle valve 6 between the oil-out of the oil-in of described shuttle valve 10 and the manual pilot valve 7 of described revolution; Be provided with second choke valve 9 between the actuator port of the oil-out of described shuttle valve 10 and described unidirectional fluid-controlled cut-off valve 4.
Its course of work is as follows:
When excavator begins operation under the driving of dynamical system, the operating mode more complicated, for example when digging, need body rotation and swing arm to promote the multiple working of action simultaneously, the hydraulic oil of hydraulic pump output is transported to rotary motor 2 and boom cylinder 5 respectively through two-way pilot operated directional control valve 3 of revolution and the two-way pilot operated directional control valve 1 of swing arm under pressure P 1 effect, in order to make body rotation and swing arm promote coordination, need open amount by guide's hydraulic circuit control two-way pilot operated directional control valve 3 of revolution and the two-way pilot operated directional control valve 1 of swing arm.At this moment, pull the joystick of the manual pilot valve 8 of swing arm, the pressure signal that swing arm rises makes unidirectional fluid-controlled cut-off valve 4 transpositions, the revolution pilot pressure signal that shuttle valve 10 will retrieve is by second choke valve 9 and unidirectional fluid-controlled cut-off valve 4 oil sump tanks, reduce the pressure of the two-way pilot operated directional control valve 3 guides end of revolution, the flow that enters rotary motor 2 is reduced, reduce speed of gyration.Owing to respectively be provided with a first throttle valve 6 between the guide of two oil-outs of the manual pilot valve 7 of revolution and the two-way pilot operated directional control valve 3 of revolution holds, control the left and right rotating pressure of fuselage respectively, balance rotation pressure and swing arm pressure, avoided the hydraulic oil of working connection preferentially to supply with rotary motor, after making that two-way pilot operated directional control valve 3 pilot pressures of revolution release a part, the swing arm pilot pressure is unaffected, has improved operating efficiency.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the present utility model.
Claims (3)
1. be used to coordinate the circuit apparatus for hydraulic of excavator base machine revolution and movable arm swinging, comprise
Hydraulic pump;
Be used to control the rotating rotary motor of fuselage;
Be used to control the boom cylinder of movable arm swinging;
The hydraulic oil that described hydraulic pump is discharged flows to the two-way pilot operated directional control valve of revolution of rotary motor, the hydraulic oil of described hydraulic pump discharge is flowed to the two-way pilot operated directional control valve of swing arm of described boom cylinder;
A revolution guide who is connected with the control port of the two-way pilot operated directional control valve of described revolution controls branch road, described revolution guide controls branch road and is provided with the manual pilot valve of revolution, and the manual pilot valve of described revolution has a left side revolution oil-out and a right-hand rotation oil-out;
A swing arm guide who is connected with the control port of the two-way pilot operated directional control valve of described swing arm controls branch road, described swing arm guide controls branch road and is provided with the manual pilot valve of swing arm, and the manual pilot valve of described swing arm has a swing arm rising oil-out and a swing arm decline oil-out; It is characterized in that:
Described revolution guide controls branch road and is provided with shuttle valve and unidirectional fluid-controlled cut-off valve, two oil-ins of described shuttle valve are communicated with two oil-outs of the manual pilot valve of revolution respectively, the oil-out of described shuttle valve is communicated with the actuator port of described unidirectional fluid-controlled cut-off valve, and the control port of described unidirectional fluid-controlled cut-off valve is communicated with the swing arm rising oil-out of the manual pilot valve of described swing arm;
Be provided with the first throttle valve between the oil-out of the oil-in of described shuttle valve and the manual pilot valve of described revolution;
Be provided with second choke valve between the oil-out of described shuttle valve and the actuator port of described unidirectional fluid-controlled cut-off valve.
2. the circuit apparatus for hydraulic that is used to coordinate excavator base machine revolution and movable arm swinging as claimed in claim 1 is characterized in that:
Two-way pilot operated directional control valve of described revolution and the two-way pilot operated directional control valve of swing arm are three six pass two-way pilot operated directional control valves.
3. the circuit apparatus for hydraulic that is used to coordinate excavator base machine revolution and movable arm swinging as claimed in claim 1, it is characterized in that: described unidirectional fluid-controlled cut-off valve is the unidirectional pilot operated directional control valve of bi-bit bi-pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203532921U CN201620434U (en) | 2009-12-31 | 2009-12-31 | Hydraulic circuit device for coordinating body rotation and movable arm swing of digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203532921U CN201620434U (en) | 2009-12-31 | 2009-12-31 | Hydraulic circuit device for coordinating body rotation and movable arm swing of digging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201620434U true CN201620434U (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203532921U Expired - Lifetime CN201620434U (en) | 2009-12-31 | 2009-12-31 | Hydraulic circuit device for coordinating body rotation and movable arm swing of digging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201620434U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793042B (en) * | 2009-12-31 | 2011-12-07 | 福田雷沃国际重工股份有限公司 | Hydraulic loop device used for coordinating machine body rotation and movable arm swinging of digging machine |
| CN102704528A (en) * | 2012-06-26 | 2012-10-03 | 上海三一重机有限公司 | Excavator hydraulic system, control method for excavator hydraulic system and excavator |
| CN102852185A (en) * | 2012-08-31 | 2013-01-02 | 徐州徐工挖掘机械有限公司 | Hydraulic excavator capable of adjusting composite movement compatibility |
| CN108104190A (en) * | 2017-12-18 | 2018-06-01 | 徐州徐工挖掘机械有限公司 | The delay braking control loop of excavator rotary motor |
| CN111536094A (en) * | 2020-05-15 | 2020-08-14 | 三一重机有限公司 | Landing leg control mechanism and engineering vehicle |
-
2009
- 2009-12-31 CN CN2009203532921U patent/CN201620434U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793042B (en) * | 2009-12-31 | 2011-12-07 | 福田雷沃国际重工股份有限公司 | Hydraulic loop device used for coordinating machine body rotation and movable arm swinging of digging machine |
| CN102704528A (en) * | 2012-06-26 | 2012-10-03 | 上海三一重机有限公司 | Excavator hydraulic system, control method for excavator hydraulic system and excavator |
| CN102852185A (en) * | 2012-08-31 | 2013-01-02 | 徐州徐工挖掘机械有限公司 | Hydraulic excavator capable of adjusting composite movement compatibility |
| CN108104190A (en) * | 2017-12-18 | 2018-06-01 | 徐州徐工挖掘机械有限公司 | The delay braking control loop of excavator rotary motor |
| CN111536094A (en) * | 2020-05-15 | 2020-08-14 | 三一重机有限公司 | Landing leg control mechanism and engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20091231 |