CN203939791U - Hydraulic slewing system - Google Patents
Hydraulic slewing system Download PDFInfo
- Publication number
- CN203939791U CN203939791U CN201320652072.5U CN201320652072U CN203939791U CN 203939791 U CN203939791 U CN 203939791U CN 201320652072 U CN201320652072 U CN 201320652072U CN 203939791 U CN203939791 U CN 203939791U
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- Prior art keywords
- valve
- bounce
- oil
- hydraulic
- reduce
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- Expired - Fee Related
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Abstract
The utility model relates to Hydraulic slewing system, and comprise oil hydraulic motor (2) and be arranged on the break (1) on oil circuit, trimmer valve (3), 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).The utility model 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 reduce frequency of impact, strengthened the reliability of steel grasping machine swirl gear and device of boarding joint, ensured the service behaviour of complete machine.
Description
Technical field
The utility model 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.In the time that the main control valve in former Hydraulic slewing system is positioned at meta, need only the set pressure of oil circuit pressure lower than trimmer valve, rotary fluid motor is braked, and its maximum braking moment is determined by trimmer valve.Do the used time when handling main control valve generation hydraulic braking, the quality of steel grasping machine complete machine is large, work brachium, rotary inertia is large, therefore in the time of 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 utility model relates to one can control the reliable Hydraulic slewing system of swirl gear motion stabilization.
The utility model aims to provide a kind of control system of steel grasping machine swirl gear.Hydraulic slewing system described in the utility model, 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.The utility model 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 reduce frequency of impact, strengthened the reliability of steel grasping machine swirl gear and device of boarding joint, ensured the service behaviour of complete machine.
Preferably, on oil circuit, be also provided with a delay valve.
Or preferably, described oil hydraulic motor is Kawasaki, Japan M5X type motor.
The utility model 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 reduce frequency of impact, strengthened the reliability of steel grasping machine swirl gear and device of boarding joint, ensured the service behaviour of complete machine.
Brief description of the drawings
Fig. 1 is the structural representation of existing Hydraulic slewing system.
Fig. 2 is structural representation of the present utility model.
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 described in the utility model, 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 while communicating 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 and reverse.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, in the time that this pressure reduction can overcome the spring force of this valve, spool moves up, and makes oil back chamber end pressure oil by flowing to fuel supply chamber end with the valve core channel of 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 |
|---|---|---|---|
| CN201320652072.5U CN203939791U (en) | 2013-10-22 | 2013-10-22 | Hydraulic slewing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320652072.5U CN203939791U (en) | 2013-10-22 | 2013-10-22 | Hydraulic slewing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939791U true CN203939791U (en) | 2014-11-12 |
Family
ID=51859107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320652072.5U Expired - Fee Related CN203939791U (en) | 2013-10-22 | 2013-10-22 | Hydraulic slewing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412822A (en) * | 2017-11-30 | 2018-08-17 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle Hydraulic slewing system and working method |
-
2013
- 2013-10-22 CN CN201320652072.5U patent/CN203939791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412822A (en) * | 2017-11-30 | 2018-08-17 | 中船华南船舶机械有限公司 | A kind of position compensation extension type is gone on board trestle Hydraulic slewing system and working method |
| CN108412822B (en) * | 2017-11-30 | 2020-01-14 | 中船华南船舶机械有限公司 | Position compensation telescopic boarding trestle rotation hydraulic system and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |