CN105736504A - Throttle overflow type multi-level buffer hydraulic control system - Google Patents
Throttle overflow type multi-level buffer hydraulic control system Download PDFInfo
- Publication number
- CN105736504A CN105736504A CN201410764363.2A CN201410764363A CN105736504A CN 105736504 A CN105736504 A CN 105736504A CN 201410764363 A CN201410764363 A CN 201410764363A CN 105736504 A CN105736504 A CN 105736504A
- Authority
- CN
- China
- Prior art keywords
- overflow
- valve
- control system
- type multi
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a throttle overflow type multi-level buffer hydraulic control system. The throttle overflow type multi-level buffer hydraulic control system comprises a hydraulic pump, a hydraulic cylinder and a fuel tank. The throttle overflow type multi-level buffer hydraulic control system further comprises a throttle valve which is connected in the system and performs throttling and buffering functions, and an overflow valve I and an overflow valve II which are connected in the system and perform overflowing and buffering functions. The end of a piston rod of the hydraulic cylinder is fixedly connected with a machinery pushing head. A non-rod cavity and a rod-cavity of the hydraulic cylinder are communicated with a first work port and a second work port of a reversing valve I separately. A third work port of the reversing valve I is communicated with a fuel outlet of the hydraulic pump by a pipeline. The overflow valve I is arranged at the fuel outlet of the hydraulic pump. The pipeline between a forth work port of the reversing valve I and the fuel tank is connected with the overflow valve II, a reversing valve II and the throttle valve in parallel. The throttle overflow type multi-level buffer hydraulic control system has the characteristics of being reasonable in design, high in control accuracy, good in system stability, wide in application range and high in intelligent degree.
Description
Technical field
The present invention relates to a kind of hydraulic damping circuit, be specifically related to a kind of throttling overflow-type multi-buffer hydraulic control system.
Background technology
Hydraulic drive and control is as medium to realize the output (power, displacement or speed etc.) of various mechanical quantity using liquid (oil, high water-based hydraulic oil, synthetic fluid).It is compared with simple machine driving, Electrified Transmission and Pneumatic Transmission, has transmission power big, and structure is little, respond the features such as fast, thus is widely used in the automatic control system of the various plant equipment such as mechanical arm and precision.At present, speed during mechanical arm rapid movement is 0.3-1m/s, when mechanical arm 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 operation of machine.In order to eliminate hydraulic shock when moving component stops suddenly or commutates, it is common that design buffer unit at hydraulic cylinder itself, but only hydraulic pressure cylinder cushion cannot meet job requirement when mechanical arm rapid movement stops or commutating.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of throttling overflow-type multi-buffer hydraulic control system, it is reasonable in design, and control accuracy is high, and system stability is high, applied widely, and intelligence degree is high.
For achieving the above object, the technical solution used in the present invention is: a kind of throttling overflow-type multi-buffer hydraulic control system, including for providing the hydraulic pump of high pressure liquid force feed for system, for driving machinery to cut somebody's hair reciprocating hydraulic cylinder and for storing the fuel tank of hydraulic oil, it is characterised in that: the overflow valve one of an overflow cushioning effect and overflow valve two in the choke valve also including playing throttling buffering effect in access system and access system；Cut somebody's hair with described machinery fixing connection in the piston rod end of described hydraulic cylinder, the first working port respectively at reversal valve one of the rodless cavity of described hydraulic cylinder and rod chamber and the second working port connect, 3rd working port of described reversal valve one and the oil-out of described hydraulic pump pass through pipeline communication, the oil-out place of described hydraulic pump is provided with described overflow valve one, and the pipeline between the 4th working port and the described fuel tank of described reversal valve one is connected in parallel to overflow valve two, reversal valve two and choke valve.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, it is characterised in that: the pipeline between described hydraulic pump oiler and described fuel tank is provided with oil filter.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, it is characterised in that: described hydraulic pump is unidirectional quantitative hydraulic pump.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, it is characterised in that: described reversal valve one is three-position four-way electromagnetic directional valve, and described reversal valve two is bi-bit bi-pass reversal valve.
Above-mentioned throttling overflow-type multi-buffer hydraulic control system, it is characterised in that: described hydraulic cylinder is two-way ram hydraulic cylinder.
The present invention compared with prior art has the advantage that
(1) this throttling overflow-type multi-buffer hydraulic control system design is reasonable, the overflow valve accessed in system and choke valve can realize overflow throttling multi-buffer, cut somebody's hair when machinery and stop suddenly or commutation in rapid movement, will not causing hydraulic shock and vibration, so that machinery is cut somebody's hair, location or commutation precision are higher.
(2) this throttling overflow-type multi-buffer hydraulic control system stability is high, is applicable not only to Machining Technology field, applies also for other field, and the scope of application is widely.
(3) this throttling overflow-type multi-buffer hydraulic control system adopts mechanical-electrical-hydraulic integration design, thus its intelligence degree is very high.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the hydraulic control principle schematic of the present invention.
Description of reference numerals:
1 hydraulic pump；2 overflow valves one；3 reversal valves one；
4 hydraulic cylinders；5 machineries are cut somebody's hair；6 overflow valves two；
7 reversal valves two；8 choke valves；9 oil filters；
10 fuel tanks.
Detailed description of the invention
One throttling overflow-type multi-buffer hydraulic control system as shown in Figure 1, including for providing the hydraulic pump 1 of high pressure liquid force feed for system, for driving machinery to cut somebody's hair 5 reciprocating hydraulic cylinders 4 and for storing the fuel tank 10 of hydraulic oil, the overflow valve 1 of an overflow cushioning effect and overflow valve 26 in the choke valve 8 also including playing throttling buffering effect in access system and access system；Cut somebody's hair with described machinery and 5 fixing be connected in the piston rod end of described hydraulic cylinder 4, the rodless cavity of described hydraulic cylinder 4 connects with B mouth respectively at the A mouth of reversal valve 1 with rod chamber, the oil-out of the O mouth of described reversal valve 1 and described hydraulic pump 1 passes through pipeline communication, the oil-out place of described hydraulic pump 1 is provided with described overflow valve 1, and the pipeline between P mouth and the described fuel tank 10 of described reversal valve 1 is connected in parallel to overflow valve 26, reversal valve 27 and choke valve 8.
In the present embodiment, the pipeline between described hydraulic pump 1 oiler and described fuel tank 10 is provided with oil filter 9.
In the present embodiment, described hydraulic pump 1 is unidirectional quantitative hydraulic pump, and described hydraulic cylinder 4 is two-way ram hydraulic cylinder.
In the present embodiment, described reversal valve 1 is three-position four-way electromagnetic directional valve, and described reversal valve 27 is bi-bit bi-pass reversal valve.
The throttle work process of overflow-type multi-buffer hydraulic control system of the present invention is: as it is shown in figure 1, when system is accessed in the right position of reversal valve 1, and hydraulic cylinder 4 rodless cavity pressure is more than its rod chamber pressure, and piston driving mechanical is cut somebody's hair and 5 is quickly moved to the left.When system is accessed in the left position of reversal valve 27, realizing the first order based on overflow valve 26 to cushion, when return pressure is reduced to the dash adjustment pressure of overflow valve 26, overflow valve 26 cuts out, transferring to based on the throttling buffering of choke valve 8, the piston of hydraulic cylinder 4 is just with second level buffer deceleration to terminal.When reversal valve 1 is in middle position, it may be achieved the piston location of hydraulic cylinder 4.
The above; it it is only presently preferred embodiments of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation above example made according to the technology of the present invention essence, all still fall within the protection domain of technical solution of the present invention.
Claims (5)
1. a throttling overflow-type multi-buffer hydraulic control system, including for providing the hydraulic pump (1) of high pressure liquid force feed for system, be used for driving machinery to cut somebody's hair (5) reciprocating hydraulic cylinder (4) and for storing the fuel tank (10) of hydraulic oil, it is characterised in that: the overflow valve one (2) of an overflow cushioning effect and overflow valve two (6) in the choke valve (8) also including playing throttling buffering effect in access system and the system of access；Cutting somebody's hair with described machinery in the piston rod end of described hydraulic cylinder (4), (5) are fixing to be connected, the first working port respectively at reversal valve one (3) of the rodless cavity of described hydraulic cylinder (4) and rod chamber and the second working port connect, described 3rd working port of reversal valve one (3) and the oil-out of described hydraulic pump (1) pass through pipeline communication, the oil-out place of described hydraulic pump (1) is provided with described overflow valve one (2), pipeline between 4th working port and the described fuel tank (10) of described reversal valve one (3) is connected in parallel to overflow valve two (6), reversal valve two (7) and choke valve (8).
2. the throttling overflow-type multi-buffer hydraulic control system described in claim 1, it is characterised in that: the pipeline between described hydraulic pump (1) oiler and described fuel tank (10) is provided with oil filter (9).
3. the throttling overflow-type multi-buffer hydraulic control system described in claim 1 or 2, it is characterised in that: described hydraulic pump (1) is unidirectional quantitative hydraulic pump.
4. the throttling overflow-type multi-buffer hydraulic control system described in claim 1, it is characterised in that: described reversal valve one (3) is three-position four-way electromagnetic directional valve, and described reversal valve two (7) is bi-bit bi-pass reversal valve.
5. the throttling overflow-type multi-buffer hydraulic control system described in claim 1, it is characterised in that: described hydraulic cylinder (4) is two-way ram hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764363.2A CN105736504A (en) | 2014-12-11 | 2014-12-11 | Throttle overflow type multi-level buffer hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410764363.2A CN105736504A (en) | 2014-12-11 | 2014-12-11 | Throttle overflow type multi-level buffer hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105736504A true CN105736504A (en) | 2016-07-06 |
Family
ID=56240606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410764363.2A Pending CN105736504A (en) | 2014-12-11 | 2014-12-11 | Throttle overflow type multi-level buffer hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105736504A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916132A (en) * | 2018-07-31 | 2018-11-30 | 宁波市镇海海威液压科技有限公司 | A kind of device of accurate control hydraulic cylinder raising and lowering |
| CN112709779A (en) * | 2020-12-28 | 2021-04-27 | 太原重工股份有限公司 | Hydraulic safety buffer device for continuous pipe rolling unit |
| CN116522672A (en) * | 2023-05-19 | 2023-08-01 | 中国人民解放军海军工程大学 | Optimization method of oil cylinder buffer mechanism |
-
2014
- 2014-12-11 CN CN201410764363.2A patent/CN105736504A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916132A (en) * | 2018-07-31 | 2018-11-30 | 宁波市镇海海威液压科技有限公司 | A kind of device of accurate control hydraulic cylinder raising and lowering |
| CN112709779A (en) * | 2020-12-28 | 2021-04-27 | 太原重工股份有限公司 | Hydraulic safety buffer device for continuous pipe rolling unit |
| CN112709779B (en) * | 2020-12-28 | 2023-06-27 | 太原重工股份有限公司 | Hydraulic safety buffer device for continuous rolling pipe unit |
| CN116522672A (en) * | 2023-05-19 | 2023-08-01 | 中国人民解放军海军工程大学 | Optimization method of oil cylinder buffer mechanism |
| CN116522672B (en) * | 2023-05-19 | 2024-04-02 | 中国人民解放军海军工程大学 | Optimization method of oil cylinder buffer mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105757015A (en) | Hydraulic driven type non-intermittent supercharging device | |
| CN105782147A (en) | Double-acting hydraulic control system of supercharging device | |
| CN102705288A (en) | Anti-shaking balance valve, telescopic control loop of hydraulic cylinder and hydraulic device | |
| CN103615443A (en) | Energy recovery hydraulic system and engineering machine | |
| CN105736504A (en) | Throttle overflow type multi-level buffer hydraulic control system | |
| CN102562686A (en) | Hydraulic system for double-acting supercharger | |
| CN204328065U (en) | Hydrovalve and there is hoist motor control system, the hoist of this hydrovalve | |
| CN201671899U (en) | Hydraulic overflow buffer circuit for mechanical arm | |
| CN104421237A (en) | Hydraulic system for dumper lifting mechanism | |
| CN204003710U (en) | A kind of load sensing multi-way valve for variable system | |
| CN102398866B (en) | Crane luffing control valve and crane luffing hydraulic system | |
| CN204458621U (en) | Throttling overflow-type multi-buffer hydraulic control system | |
| CN106541610A (en) | Electromechanical organisation of working with accumulator ftercompction | |
| CN102562691A (en) | Hydraulic overflow throttling combined buffer loop for mechanical arm | |
| CN204800467U (en) | Planogrinder's hydraulic drive system | |
| CN204458585U (en) | Throttling buffering hydraulic control system | |
| CN208040821U (en) | A kind of hydraulic cylinder and the hydraulic test containing the hydraulic cylinder | |
| CN110630570A (en) | Multi-degree-of-freedom hydraulic damping system | |
| CN102536926A (en) | Hydraumatic throttling buffer loop used for mechanical arm | |
| CN110253323A (en) | A kind of hydraulic knife-changing system of machining center | |
| CN104976188B (en) | Actuator assembly, engineering machinery and arm support control device and method thereof | |
| CN202132305U (en) | High-pressure oil cylinder with buffering device in rod cavity | |
| CN105736490A (en) | Throttling buffering hydraulic control system | |
| CN205779975U (en) | A kind of descending valve plate of fork truck electro-hydraulic proportional multi-way valve | |
| CN209368939U (en) | Handle steering hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |
|
| WD01 | Invention patent application deemed withdrawn after publication |