CN103511372A - Rotary hydraulic system - Google Patents
Rotary hydraulic system Download PDFInfo
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- CN103511372A CN103511372A CN201310497926.1A CN201310497926A CN103511372A CN 103511372 A CN103511372 A CN 103511372A CN 201310497926 A CN201310497926 A CN 201310497926A CN 103511372 A CN103511372 A CN 103511372A
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Abstract
The invention provides a control system of a rotary mechanism of a steel grasping machine. A rotary hydraulic system comprises a hydraulic motor, a brake, a cushion valve, an oil supplementing valve and a main control valve, wherein the brake, the cushion valve, the oil supplementing valve and the main control valve are arranged on an oil circuit, and the oil circuit is also provided with an anti-rebounding valve. A hydraulic loop with the anti-rebounding valve is adopted in the rotary hydraulic system, and thus bounce in rotation, bounce frequency and rotary impact force are reduced. Therefore, impact frequency is reduced, reliability of the joint between the rotary mechanism of the steel grasping machine and a feeding device is strengthened, and working performance of the whole machine is guaranteed.
Description
Technical field
The present invention aims to provide a kind of control system of steel grasping machine swirl gear.
Background technique
Steel grasping machine, under the operating mode of cycle operation, require the device of boarding of steel grasping machine can realize the rotation of any angle of revolution, and rotation motion frequency is very high.The performance of steel grasping machine swirl gear and Hydraulic slewing system directly affects the service behaviour of complete machine.Former Hydraulic slewing system as shown in Figure 1, includes trimmer valve, Fill valve and break etc. in loop.When the main control valve in former Hydraulic slewing system is positioned at meta, need only oil circuit pressure lower than the set pressure of trimmer valve, rotary fluid motor is braked, and its maximum braking moment is determined by trimmer valve.When handling main control valve generation hydraulic braking, do the used time, the quality of steel grasping machine complete machine is large, work brachium, rotary inertia is large, therefore when rotary motor end of braking, the inertia kinetic energy of steel grasping machine device of boarding will make oil hydraulic motor reversion, and device of boarding produces bounce-back and moves and form vibration and noise.The spring-back force producing during due to rotary braking is large, and easily produces repeatedly backswing, can cause repeatedly impacting.
Summary of the invention
The present invention relates to a kind ofly can control the reliable Hydraulic slewing system of swirl gear motion stabilization.
Hydraulic slewing system of the present invention, comprises oil hydraulic motor and is arranged on the break on oil circuit, trimmer valve, and Fill valve and main control valve, be also provided with an anti-bounce-back valve on oil circuit.
Preferably, on oil circuit, be also provided with a delay valve.
Or preferably, described oil hydraulic motor is Kawasaki, Japan M5X type motor.
The present invention adopts the oil hydraulic circuit with anti-bounce-back valve, thus the rebounding force while reducing revolution, and reduce bounce-back number of times, reduce to turn round impact force.Thereby reduced frequency of impact, strengthened the reliability of steel grasping machine swirl gear and device of boarding joint, ensured the service behaviour of complete machine.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing Hydraulic slewing system.
Fig. 2 is structural representation of the present invention.
In figure, 1. break, 2. oil hydraulic motor, 3. trimmer valve, 4. Fill valve, 5. shuttle valve, 6. main control valve, 7. anti-bounce-back valve, 8. delay valve.
Embodiment
Embodiment one
Hydraulic slewing system of the present invention, comprises Kawasaki, Japan M5X type oil hydraulic motor and is arranged on the break on oil circuit, trimmer valve, and Fill valve and main control valve, is characterized in that being also provided with on oil circuit an anti-bounce-back valve and delay valve.
When main control valve 6 is in meta, the fuel supply chamber end fuel cut-off of oil hydraulic motor 2, and oil back chamber end is not when communicate with fuel tank yet, and due to effect of inertia, oil back chamber end produces retardation pressure, and this pressure increases rapidly, and this can order about oil hydraulic motor 2 reversions.As shown in Figure 2, the spool two ends of an anti-bounce-back valve 7 are connected with oil back chamber end respectively, wherein on the connecting path of one end, there is a restriction, therefore the spool two ends of anti-bounce-back valve 7 produce pressure reduction, when this pressure reduction can overcome the spring force of this valve, spool moves up, and makes oil back chamber end pressure oil flow to fuel supply chamber end by the valve core channel with restriction, and oil back chamber end retardation pressure reduces rapidly like this.Anti-bounce-back valve 7 is by buffering and throttling, and the impact producing while absorbing rotary braking, plays the effect that reduces revolution bounce-back, has improved the force-bearing situation of swirl gear.
Claims (3)
1. Hydraulic slewing system, comprises oil hydraulic motor (2) and is arranged on the break (1) on oil circuit, trimmer valve (3), and Fill valve (4) and main control valve (6), is characterized in that being also provided with on oil circuit an anti-bounce-back valve (7).
2. Hydraulic slewing system as claimed in claim 1, is characterized in that being also provided with on oil circuit a delay valve (8).
3. Hydraulic slewing system as claimed in claim 1, is characterized in that described oil hydraulic motor (2) is Kawasaki, Japan M5X type motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497926.1A CN103511372A (en) | 2013-10-22 | 2013-10-22 | Rotary hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497926.1A CN103511372A (en) | 2013-10-22 | 2013-10-22 | Rotary hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511372A true CN103511372A (en) | 2014-01-15 |
Family
ID=49894629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310497926.1A Pending CN103511372A (en) | 2013-10-22 | 2013-10-22 | Rotary hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103511372A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061389A (en) * | 2017-04-11 | 2017-08-18 | 长沙学院 | The Antisway Control System and method of engineering machinery rotary braking |
| CN107061390A (en) * | 2017-04-12 | 2017-08-18 | 长沙学院 | Antisway Control System and method during a kind of engineering machinery rotary braking |
| CN107558529A (en) * | 2017-10-26 | 2018-01-09 | 付文博 | A kind of excavator rotary system based on motor driving two-way quantitative pump |
| CN110710373A (en) * | 2019-09-30 | 2020-01-21 | 黑龙江八一农垦大学 | Hydraulic rotary driving device for agricultural machine |
-
2013
- 2013-10-22 CN CN201310497926.1A patent/CN103511372A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061389A (en) * | 2017-04-11 | 2017-08-18 | 长沙学院 | The Antisway Control System and method of engineering machinery rotary braking |
| CN107061390A (en) * | 2017-04-12 | 2017-08-18 | 长沙学院 | Antisway Control System and method during a kind of engineering machinery rotary braking |
| CN107558529A (en) * | 2017-10-26 | 2018-01-09 | 付文博 | A kind of excavator rotary system based on motor driving two-way quantitative pump |
| CN110710373A (en) * | 2019-09-30 | 2020-01-21 | 黑龙江八一农垦大学 | Hydraulic rotary driving device for agricultural machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| WD01 | Invention patent application deemed withdrawn after publication |