CN202298699U - Quick-steering hydraulic device of land leveler - Google Patents
Quick-steering hydraulic device of land leveler Download PDFInfo
- Publication number
- CN202298699U CN202298699U CN2011203014760U CN201120301476U CN202298699U CN 202298699 U CN202298699 U CN 202298699U CN 2011203014760 U CN2011203014760 U CN 2011203014760U CN 201120301476 U CN201120301476 U CN 201120301476U CN 202298699 U CN202298699 U CN 202298699U
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- brake
- steering
- valve
- brakes
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Abstract
A quick-steering hydraulic device of a land leveler comprises a pressure switch, a brake valve, brake cylinders, brakes, exhaust ports, a steering device, steering cylinders, a double pump, a radiator, a return oil filter, a filter, a hydraulic oil tank, a reversing valve, charging valves and energy accumulators, wherein the pressure switch is connected with the brake valve; the brake valve is simultaneously connected with the hydraulic oil tank, the energy accumulators and the brakes; the brakes are arranged side by side; the brake cylinders are arranged on the brakes arranged side by side; the exhaust ports are arranged on connecting pipelines for the brakes; the energy accumulators are arranged in the front of the pipeline for connecting the brake valve with the steering device; the charging valves are arranged behind and connected with the energy accumulators; the reversing valve is arranged behind and connected with the charging valves, and is also connected with the double pump and the steering device; and the steering device is connected with the steering cylinders, the radiator and the return oil filter through pipelines. The quick-steering hydraulic device of the land leveler has the advantages of simple integral structure, convenience in operation and use, good stability, high reliability and low manufacturing cost, and can effectively improve the comfort in steering operation.
Description
Technical field
The utility model relates to the land leveller hydraulic control device, relates in particular to a kind of land leveller fast steering hydraulic means.
Background technology
The land leveller of prior art; All adopted hydraulic braking and fluid-link steering technology; Because braking all is the factor relevant with traffic safety with turning to, so the land leveller hydraulic system has all adopted independently brakes and steering, but the braking of prior art is with to turn to both to have no related.Brakes comprises that brake pump, prefill valve, accumulator, brake valve and rim brake form, braking belong to intermittently, working method at random, therefore after reaching the prefill valve setting pressure, the flow of brake pump just flows back to fuel tank through prefill valve.Steering comprises parts compositions such as steering pump, steering gear and oil cylinder, and steering pump is a gear pump, and its output flow is directly proportional with engine speed; When land leveller when intermountain is gone, bend is many, the speed of a motor vehicle is low; Engine speed is low, and the steering pump output flow is few, can not satisfy the requirement of driver's fast steering; Driver's labour intensity is big, and efficient is low, and causes traffic accident easily; Simple increase displacement of steering pump can be accelerated the fast steering requirement when the motor slow-speed of revolution, and when the high rotating speed of motor, can cause flow excessive again, causes phenomenons such as system's heating easily.
The utility model content
The purpose of the utility model is; Overcome the weak point of prior art; A kind of land leveller fast steering hydraulic means is provided; It can guarantee to improve the comfortableness of handling maneuver under the stable prerequisite of brake safe, especially low in engine speed, have when handling maneuver is frequent turn to lightly, flexibly, outstanding effect fast.
The described a kind of land leveller fast steering hydraulic means of the utility model includes pressure switch, brake valve, brake cylinder, brake, exhaust opening, steering gear, turns to oil cylinder, duplex pump, radiator, return filter, strainer, hydraulic oil container, reversal valve, prefill valve and accumulator form.Pressure switch is connected to brake valve, the brake that brake valve is connected to hydraulic oil container, accumulator simultaneously and is set up in parallel.On the brake that is set up in parallel, be provided with brake cylinder, on the connecting line of brake, be provided with exhaust opening.Be connected at brake valve on the pipeline of steering gear, the front portion is provided with accumulator, is connected with prefill valve behind the accumulator, is connected with reversal valve behind the prefill valve, and reversal valve is connected to duplex pump and steering gear again.Steering gear is connected to through pipeline and turns to oil cylinder, is connected to radiator and return filter through pipeline again.Return filter is connected to hydraulic oil container through pipeline, is strainer under the duplex pump, also is connected to hydraulic oil container through pipeline.
The described a kind of land leveller fast steering hydraulic means of the utility model; Overall structure is simple, and is easy for operation, good stability; Reliability is high; Low preparation cost can improve the comfortableness of handling maneuver effectively, especially low in engine speed, turn to when handling maneuver is frequent lightly, flexibly, outstanding effect fast.
Description of drawings
The specific embodiment
Existing with reference to accompanying drawing 1; Explain as follows in conjunction with embodiment: the described a kind of land leveller fast steering hydraulic means of the utility model includes pressure switch 1, brake valve 2, brake cylinder 3, brake 4, exhaust opening 5, steering gear 6, turns to oil cylinder 7, duplex pump 8, radiator 9, return filter 10, strainer 11, hydraulic oil container 12, reversal valve 13, prefill valve 14 and accumulator 15 form.Pressure switch 1 is connected to brake valve 2, the brake 4 that brake valve 2 is connected to hydraulic oil container 12, accumulator 15 simultaneously and is set up in parallel.On the brake that is set up in parallel 4, be provided with brake cylinder 3, on the connecting line of brake 4, be provided with exhaust opening 5.Be connected at brake valve 2 on the pipeline of steering gear 6, the front portion is provided with accumulator 15, is connected with prefill valve 14 behind the accumulator 15, is connected with reversal valve 13 behind the prefill valve 14, and reversal valve 13 is connected to duplex pump 8 and steering gear 6 again.Steering gear 6 is connected to through pipeline and turns to oil cylinder 7, and steering gear 6 is connected to radiator 9 and return filter 10 through pipeline again.Return filter 10 is connected to hydraulic oil container 12 through pipeline, and duplex pump is for 8 times a strainer 11, also is connected to hydraulic oil container 12 through pipeline.The described a kind of land leveller fast steering hydraulic means of the utility model; Overall structure is simple, and is easy for operation, good stability; Reliability is high; Low preparation cost can improve the comfortableness of handling maneuver effectively, especially low in engine speed, turn to when handling maneuver is frequent lightly, flexibly, outstanding effect fast.
Claims (1)
1. a land leveller fast steering hydraulic means is characterized in that pressure switch (1) is connected to brake valve (2), the brake (4) that brake valve (2) is connected to hydraulic oil container (12), accumulator (15) simultaneously and is set up in parallel; On the brake that is set up in parallel (4), be provided with brake cylinder (3), on the connecting line of brake (4), be provided with exhaust opening (5); Be connected on the pipeline of steering gear (6) at brake valve (2); The front portion is provided with accumulator (15); Be connected with prefill valve (14) behind the accumulator (15); Be connected with reversal valve (13) behind the prefill valve (14), reversal valve (13) is connected to duplex pump (8) and steering gear (6) again; Steering gear (6) is connected to through pipeline and turns to oil cylinder (7), and steering gear (6) is connected to radiator (9) and return filter (10) through pipeline again; Return filter (10) is connected to hydraulic oil container (12) through pipeline, is strainer (11) under the duplex pump (8), also is connected to hydraulic oil container (12) through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203014760U CN202298699U (en) | 2011-08-18 | 2011-08-18 | Quick-steering hydraulic device of land leveler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203014760U CN202298699U (en) | 2011-08-18 | 2011-08-18 | Quick-steering hydraulic device of land leveler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298699U true CN202298699U (en) | 2012-07-04 |
Family
ID=46367628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203014760U Expired - Fee Related CN202298699U (en) | 2011-08-18 | 2011-08-18 | Quick-steering hydraulic device of land leveler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202298699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290869A (en) * | 2013-06-24 | 2013-09-11 | 山推工程机械股份有限公司 | Bulldozer and shovel blade inclination control system thereof |
| CN105864130A (en) * | 2016-05-30 | 2016-08-17 | 山东临工工程机械有限公司 | Load sensing hydraulic system of land leveler |
-
2011
- 2011-08-18 CN CN2011203014760U patent/CN202298699U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290869A (en) * | 2013-06-24 | 2013-09-11 | 山推工程机械股份有限公司 | Bulldozer and shovel blade inclination control system thereof |
| CN103290869B (en) * | 2013-06-24 | 2015-08-12 | 山推工程机械股份有限公司 | The control system of a kind of bulldozer and shovel blade inclination thereof |
| CN105864130A (en) * | 2016-05-30 | 2016-08-17 | 山东临工工程机械有限公司 | Load sensing hydraulic system of land leveler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120818 |