CN206647332U - A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device - Google Patents
A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device Download PDFInfo
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- CN206647332U CN206647332U CN201720434329.8U CN201720434329U CN206647332U CN 206647332 U CN206647332 U CN 206647332U CN 201720434329 U CN201720434329 U CN 201720434329U CN 206647332 U CN206647332 U CN 206647332U
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- valve group
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Abstract
The utility model discloses a kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device, including the speed adjusting gear being made up of the unidirectional valve group of bridge-type and proportional velocity regulating valve, the oil-out of the oil inlet connection unidirectional valve group of bridge-type of the proportional velocity regulating valve, oil-out connect the oil inlet of the unidirectional valve group of bridge-type；The quantity of the speed adjusting gear is identical with the quantity of hydraulic cylinder, and the first port of the speed adjusting gear is communicated in an interface of reversal valve, and second port connects the first chamber of hydraulic cylinder, another interface of the second chamber connection reversal valve of the hydraulic cylinder.Realize that oil-feed, oil return commutate by the unidirectional valve group of bridge-type, hydraulic cylinder is controlled with proportional velocity regulating valve, realizes bi-directional synchronization speed governing, it is simple in construction, and each circuit form is symmetrical, and each link parameter is consistent, influence of the difference between hydraulic cylinder to synchronization accuracy is eliminated, effectively improves synchronization accuracy.
Description
Technical field
It the utility model is related to hydraulic cylinder field, and in particular to a kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device.
Background technology
Executive component of the hydraulic cylinder as hydraulic system, hydraulic energy is converted into mechanical energy by it, realizes the past of mechanical mechanism
Linear motion is returned, thus, application of the hydraulic cylinder in engineering machinery, hoisting machinery, agricultural machinery and water conservancy machinery is very wide
It is general.In many occasions, single hydraulic cylinder can not meet work requirements, it is necessary to double hydraulic cylinder or multi-hydraulic-cylinder be used, when multiple
Hydraulic cylinder accomplishes a task simultaneously when, the working condition of hydraulic cylinder must be consistent, that is, the synchronization in hydraulic system
Action or the synchronism of hydraulic cylinder works.Synchronization is required for for double acting hydraulic cylinder bidirectional-movement, keeps the synchronization of multi-cylinder
Action seems particularly significant.
Hydraulic cylinder works method of synchronization typical method has using rack-and-pinion mechanical connection manner at present, and shortcoming is desirable
Individually designed bindiny mechanism, bi-directional synchronization is realized, it is complicated, and worn comparatively fast for the oil cylinder of main transmission；Using list
To flow speed control valve synchronous variable-speed mode, shortcoming be can only unidirectional speed governing, synchronization accuracy had a great influence by speed governing valve performance and oil temperature, and
And each flow speed control valve is difficult to be transferred to same traffic, synchronous error is bigger；Using the synchronous variable-speed mode of flow divider-combiner, shortcoming
It is that each link parameter is difficult to control, speed adjustable range is small, is unsuitable for low-pressure system, and the accuracy of manufacture and cost are higher.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device, can solve
The plain speed of synchronization of the certainly existing synchronization hydraulic system using multiple hydraulic cylinders composition is slow, precision is low, cost is high, and performance is not
The problem of stable.
The utility model is achieved through the following technical solutions：
A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device, including the tune being made up of the unidirectional valve group of bridge-type and proportional velocity regulating valve
Fast mechanism, the oil-out of the oil inlet connection unidirectional valve group of bridge-type of the proportional velocity regulating valve, the oil-out connection unidirectional valve group of bridge-type
Oil inlet；The quantity of the speed adjusting gear is identical with the quantity of hydraulic cylinder, and the first port of the speed adjusting gear, which is communicated in, changes
To an interface of valve, second port connects the first chamber of hydraulic cylinder, the second chamber connection reversal valve of the hydraulic cylinder
Another interface.
Further scheme of the present utility model is that the reversal valve is three position four-way directional control valve.
Further scheme of the present utility model is that the hydraulic cylinder is double acting single-rod cylinder.
The utility model compared with prior art the advantages of be：
Realize that oil-feed, oil return commutate by the unidirectional valve group of bridge-type, hydraulic cylinder is controlled with proportional velocity regulating valve, realized double
It is simple in construction to synchronous variable-speed, and each circuit form is symmetrical, and each link parameter is consistent, eliminates the difference between hydraulic cylinder
Influence to synchronization accuracy, effectively improves synchronization accuracy.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device as shown in Figure 1, including adjusted by the unidirectional valve group of bridge-type and ratio
Fast valve group into speed adjusting gear, the proportional velocity regulating valve oil inlet connection the unidirectional valve group of bridge-type oil-out, oil-out connection
The oil inlet of the unidirectional valve group of bridge-type；The quantity of the speed adjusting gear is identical with the quantity of hydraulic cylinder, and the first of the speed adjusting gear
Port is communicated in an interface of reversal valve, and second port connects the first chamber of hydraulic cylinder, the second chamber of the hydraulic cylinder
Connect another interface of reversal valve.
By taking the A hydraulic cylinders 1 and B hydraulic cylinders 2 applied to double acting single pole as an example.With A hydraulic cylinders 1 it is supporting be single by first
The unidirectional valve group 3 of A bridge-types and A proportionality velocity modulations formed to valve 31, the second check valve 32, the 3rd check valve 33, the 4th check valve 34
Valve 6, oil inlet, the oil-out of the A proportional velocity regulating valves 6 are respectively communicated with the oil-out and oil inlet of the unidirectional valve group 3 of A bridge-types；With B
The supporting B bridges being made up of the 5th check valve 41, the 6th check valve 42, the 7th check valve 43, the 8th check valve 44 of hydraulic cylinder 2
The unidirectional valve group 4 of formula and B proportional velocity regulating valves 7, oil inlet, the oil-out of the B proportional velocity regulating valves 7 are respectively communicated with B bridge-type check valves
The oil-out and oil inlet of group 4；The first port of the unidirectional valve group 3 of A bridge-types and the first port of the unidirectional valve group 4 of B bridge-types are simultaneously
It is coupled to an interface of three position four-way directional control valve 5, the second port of the unidirectional valve group 3 of A bridge-types and the unidirectional valve group 4 of B bridge-types
Second port is respectively communicated with the plunger shaft and the plunger shaft of B hydraulic cylinders 2 of A hydraulic cylinders 1, the rod end chamber and B liquid of the A hydraulic cylinders 1
The rod end chamber of cylinder pressure 2 is parallel to another interface of three position four-way directional control valve 5.When in use, according to the control of prior art
Mode, installation detects the position sensor of hydraulic stem position, the letter of position sensor on A hydraulic cylinders 1 and B hydraulic cylinders 2 respectively
Number difference input processor, on the basis of the position sensor signal of A hydraulic cylinders 1, calculate the position sensor letter of B hydraulic cylinders 2
Difference number by comparison, and then change the aperture of the B proportional velocity regulating valves 7 of input signal regulation B hydraulic cylinders 2, make B hydraulic cylinders 2
With the synchronization action of A hydraulic cylinders 1.
When hydraulic cylinder it is more when, speed adjusting gear corresponding to increase.
Claims (3)
- A kind of 1. hydraulic cylinder bridge-type two-way synchronous speed regulation device, it is characterised in that：Including by the unidirectional valve group of bridge-type and proportionality velocity modulation Valve group into speed adjusting gear, the proportional velocity regulating valve oil inlet connection the unidirectional valve group of bridge-type oil-out, oil-out connection bridge The oil inlet of the unidirectional valve group of formula；The quantity of the speed adjusting gear is identical with the quantity of hydraulic cylinder, the first end of the speed adjusting gear Mouth is communicated in an interface of reversal valve, and second port connects the first chamber of hydraulic cylinder, and the second chamber of the hydraulic cylinder connects Another interface of logical reversal valve.
- A kind of 2. hydraulic cylinder bridge-type two-way synchronous speed regulation device as claimed in claim 1, it is characterised in that：The reversal valve （5）For three position four-way directional control valve.
- A kind of 3. hydraulic cylinder bridge-type two-way synchronous speed regulation device as claimed in claim 1, it is characterised in that：The hydraulic cylinder is Double acting single-rod cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434329.8U CN206647332U (en) | 2017-04-24 | 2017-04-24 | A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720434329.8U CN206647332U (en) | 2017-04-24 | 2017-04-24 | A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647332U true CN206647332U (en) | 2017-11-17 |
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ID=60277174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720434329.8U Expired - Fee Related CN206647332U (en) | 2017-04-24 | 2017-04-24 | A kind of hydraulic cylinder bridge-type two-way synchronous speed regulation device |
Country Status (1)
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| CN (1) | CN206647332U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005664A (en) * | 2019-04-18 | 2019-07-12 | 江苏南方润滑股份有限公司 | A kind of bidirectional speed governing hydraulic control system based on hydraulic cylinder load oil back chamber |
| CN111173790A (en) * | 2020-01-14 | 2020-05-19 | 福建侨龙应急装备股份有限公司 | Emergency self-loading and unloading equipment and hydraulic control system thereof |
| CN111301084A (en) * | 2019-11-14 | 2020-06-19 | 徐工集团工程机械股份有限公司 | Hydro-pneumatic suspension system, vehicle and control method of hydro-pneumatic suspension system |
| CN113819100A (en) * | 2020-06-18 | 2021-12-21 | 上海圣克赛斯液压股份有限公司 | Rectification speed regulating valve group and hydraulic system with same |
| CN115163600A (en) * | 2022-09-07 | 2022-10-11 | 浙大城市学院 | Large-range nanoscale positioning system based on fluid control |
-
2017
- 2017-04-24 CN CN201720434329.8U patent/CN206647332U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005664A (en) * | 2019-04-18 | 2019-07-12 | 江苏南方润滑股份有限公司 | A kind of bidirectional speed governing hydraulic control system based on hydraulic cylinder load oil back chamber |
| CN110005664B (en) * | 2019-04-18 | 2024-06-11 | 江苏南方润滑股份有限公司 | Bidirectional speed regulation hydraulic control system based on negative load oil return cavity of hydraulic cylinder |
| CN111301084A (en) * | 2019-11-14 | 2020-06-19 | 徐工集团工程机械股份有限公司 | Hydro-pneumatic suspension system, vehicle and control method of hydro-pneumatic suspension system |
| CN111173790A (en) * | 2020-01-14 | 2020-05-19 | 福建侨龙应急装备股份有限公司 | Emergency self-loading and unloading equipment and hydraulic control system thereof |
| CN113819100A (en) * | 2020-06-18 | 2021-12-21 | 上海圣克赛斯液压股份有限公司 | Rectification speed regulating valve group and hydraulic system with same |
| CN115163600A (en) * | 2022-09-07 | 2022-10-11 | 浙大城市学院 | Large-range nanoscale positioning system based on fluid control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20180424 |