CN204458621U - Throttling overflow-type multi-buffer hydraulic control system - Google Patents
Throttling overflow-type multi-buffer hydraulic control system Download PDFInfo
- Publication number
- CN204458621U CN204458621U CN201420785579.2U CN201420785579U CN204458621U CN 204458621 U CN204458621 U CN 204458621U CN 201420785579 U CN201420785579 U CN 201420785579U CN 204458621 U CN204458621 U CN 204458621U
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- oil hydraulic
- valve
- selector valve
- control system
- overflow
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Abstract
The utility model discloses a kind of throttling overflow-type multi-buffer hydraulic control system, comprise oil hydraulic pump, oil hydraulic cylinder and fuel tank, also comprise the throttle valve and interior relief valve one and the relief valve two playing overflow buffer function of connecting system that play throttling buffering effect in connecting system; Cut somebody's hair with described machinery and be fixedly connected with in the piston rod end of described oil hydraulic cylinder, the rodless cavity of described oil hydraulic cylinder is communicated with the second working port with first working port of rod chamber respectively at selector valve one, 3rd working port of described selector valve one and the oil outlet of described oil hydraulic pump pass through pipeline communication, the oil outlet place of described oil hydraulic pump is provided with described relief valve one, the pipeline between the 4th working port of described selector valve one and described fuel tank is connected in parallel to relief valve two, selector valve two and throttle valve.The utility model has following features: reasonable in design, and control accuracy is high, and the stability of a system is high, applied widely, and intelligence degree is high.
Description
Technical field
The utility model relates to a kind of hydraulic damping circuit, is specifically related to a kind of throttling overflow-type multi-buffer hydraulic control system.
Background technique
Hydraulic drive and control is using liquid (oil, high water-based hydraulic oil, synthetic fluid) as medium to realize the output (power, displacement or speed etc.) of various mechanical quantity.It is compared with Pneumatic Transmission with simple mechanical transmission, Electrified Transmission, has transmitted power large, and structure is little, respond the features such as fast, is thus widely used in the automatic control system of the various machinery such as manipulator and precision.At present, speed during manipulator rapid movement is 0.3-1m/s, when manipulator stops suddenly or commutation in rapid movement, will cause hydraulic shock and vibration, and this not only can affect its location or commutation precision, and can hinder the normal work of machine.In order to eliminate hydraulic shock when moving element stops suddenly or commutates, normally at oil hydraulic cylinder design damping device itself, but it is only the job requirement that hydraulic pressure cylinder cushion cannot meet when manipulator rapid movement stops or commutating.
Model utility content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and provide a kind of throttling overflow-type multi-buffer hydraulic control system, it is reasonable in design, and control accuracy is high, and the stability of a system is high, applied widely, and intelligence degree is high.
For achieving the above object, the technical solution adopted in the utility model is: a kind of throttling overflow-type multi-buffer hydraulic control system, comprise for providing the oil hydraulic pump of high pressure liquid force feed for system, cut somebody's hair for driving device reciprocating oil hydraulic cylinder and the fuel tank for storage liquid force feed, it is characterized in that: also comprise in connecting system play throttling buffering effect throttle valve and connecting system in the relief valve one of an overflow buffer function and relief valve two; Cut somebody's hair with described machinery and be fixedly connected with in the piston rod end of described oil hydraulic cylinder, the rodless cavity of described oil hydraulic cylinder is communicated with the second working port with first working port of rod chamber respectively at selector valve one, 3rd working port of described selector valve one and the oil outlet of described oil hydraulic pump pass through pipeline communication, the oil outlet place of described oil hydraulic pump is provided with described relief valve one, the pipeline between the 4th working port of described selector valve one and described fuel tank is connected in parallel to relief valve two, selector valve two and throttle valve.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, is characterized in that: the pipeline between described oil hydraulic pump oiler and described fuel tank is provided with oil purifier.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, is characterized in that: described oil hydraulic pump is unidirectional quantitative hydraulic pump.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, is characterized in that: described selector valve one is three-position four-way electromagnetic directional valve, and described selector valve two is bi-bit bi-pass selector valve.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, is characterized in that: described oil hydraulic cylinder is two-way ram oil hydraulic cylinder.
The utility model compared with prior art has the following advantages:
(1) this throttling overflow-type multi-buffer hydraulic control system design is reasonable, the relief valve accessed in system and throttle valve can realize overflow throttling multi-buffer, to cut somebody's hair in rapid movement when machinery and stop suddenly or commutation, hydraulic shock and vibration can not be caused, thus make machinery cut somebody's hair location or commutation precision higher.
(2) this throttling overflow-type multi-buffer hydraulic control system stability is high, and be not only applicable to Machining Technology field, be also applicable to other field, Applicable scope widely.
(3) this throttling overflow-type multi-buffer hydraulic control system adopts mechanical-electrical-hydraulic integration design, and thus its intelligence degree is very high.
Below by drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is hydraulic control principle schematic of the present utility model.
Description of reference numerals:
1-oil hydraulic pump; 2-relief valve one; 3-selector valve one;
4-oil hydraulic cylinder; 5-machinery is cut somebody's hair; 6-relief valve two;
7-selector valve two; 8-throttle valve; 9-oil purifier;
10-fuel tank.
Embodiment
A kind of throttling overflow-type multi-buffer hydraulic control system as shown in Figure 1, comprise for providing the oil hydraulic pump 1 of high pressure liquid force feed for system, cut somebody's hair for driving device 5 reciprocating oil hydraulic cylinders 4 and the fuel tank 10 for storage liquid force feed, also comprise in connecting system play throttling buffering effect throttle valve 8 and connecting system in the relief valve 1 of an overflow buffer function and relief valve 26; Piston rod end and the described machinery of described oil hydraulic cylinder 4 are cut somebody's hair and 5 to be fixedly connected with, the rodless cavity of described oil hydraulic cylinder 4 is communicated with B mouth with the A mouth of rod chamber respectively at selector valve 1, the O mouth of described selector valve 1 and the oil outlet of described oil hydraulic pump 1 pass through pipeline communication, the oil outlet place of described oil hydraulic pump 1 is provided with described relief valve 1, the pipeline between the P mouth of described selector valve 1 and described fuel tank 10 is connected in parallel to relief valve 26, selector valve 27 and throttle valve 8.
In the present embodiment, the pipeline between described oil hydraulic pump 1 oiler and described fuel tank 10 is provided with oil purifier 9.
In the present embodiment, described oil hydraulic pump 1 is unidirectional quantitative hydraulic pump, and described oil hydraulic cylinder 4 is two-way ram oil hydraulic cylinder.
In the present embodiment, described selector valve 1 is three-position four-way electromagnetic directional valve, and described selector valve 27 is bi-bit bi-pass selector valve.
The working procedure of the utility model throttling overflow-type multi-buffer hydraulic control system is: as shown in Figure 1, when the right position connecting system of selector valve 1, and oil hydraulic cylinder 4 rodless cavity pressure is greater than its rod chamber pressure, and piston driving mechanical is cut somebody's hair and 5 to be moved to the left fast.When selector valve 27 left connecting systems, realize cushioning based on the first order of relief valve 26, when return pressure is reduced to the buffering adjustment pressure of relief valve 26, relief valve 26 cuts out, transfer to based on the throttling buffering of throttle valve 8, the piston of oil hydraulic cylinder 4 just with second level buffer deceleration to terminal.When selector valve 1 is in meta, the piston location of oil hydraulic cylinder 4 can be realized.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solutions of the utility model.
Claims (5)
1. a throttling overflow-type multi-buffer hydraulic control system, comprise for providing the oil hydraulic pump of high pressure liquid force feed (1) for system, cut somebody's hair for driving device (5) reciprocating oil hydraulic cylinder (4) and the fuel tank (10) for storage liquid force feed, it is characterized in that: also comprise in connecting system play throttling buffering effect throttle valve (8) and connecting system in the relief valve one (2) of an overflow buffer function and relief valve two (6), the piston rod end of described oil hydraulic cylinder (4) cut somebody's hair with described machinery (5) be fixedly connected with, the rodless cavity of described oil hydraulic cylinder (4) is communicated with the second working port with first working port of rod chamber respectively at selector valve one (3), 3rd working port of described selector valve one (3) and the oil outlet of described oil hydraulic pump (1) pass through pipeline communication, the oil outlet place of described oil hydraulic pump (1) is provided with described relief valve one (2), pipeline between 4th working port of described selector valve one (3) and described fuel tank (10) is connected in parallel to relief valve two (6), selector valve two (7) and throttle valve (8).
2., according to throttling overflow-type multi-buffer hydraulic control system according to claim 1, it is characterized in that: the pipeline between described oil hydraulic pump (1) oiler and described fuel tank (10) is provided with oil purifier (9).
3. according to the throttling overflow-type multi-buffer hydraulic control system described in claim 1 or 2, it is characterized in that: described oil hydraulic pump (1) is unidirectional quantitative hydraulic pump.
4. according to throttling overflow-type multi-buffer hydraulic control system according to claim 1, it is characterized in that: described selector valve one (3) is three-position four-way electromagnetic directional valve, described selector valve two (7) is bi-bit bi-pass selector valve.
5. according to throttling overflow-type multi-buffer hydraulic control system according to claim 1, it is characterized in that: described oil hydraulic cylinder (4) is two-way ram oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785579.2U CN204458621U (en) | 2014-12-11 | 2014-12-11 | Throttling overflow-type multi-buffer hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785579.2U CN204458621U (en) | 2014-12-11 | 2014-12-11 | Throttling overflow-type multi-buffer hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458621U true CN204458621U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420785579.2U Expired - Fee Related CN204458621U (en) | 2014-12-11 | 2014-12-11 | Throttling overflow-type multi-buffer hydraulic control system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204458621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497934A (en) * | 2020-04-24 | 2020-08-07 | 山推工程机械股份有限公司 | Steering brake system and steering brake control method |
-
2014
- 2014-12-11 CN CN201420785579.2U patent/CN204458621U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497934A (en) * | 2020-04-24 | 2020-08-07 | 山推工程机械股份有限公司 | Steering brake system and steering brake control 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: 20150708 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |