CN207278624U - A kind of hydraulic control device, hydraulic system pacifically machine - Google Patents
A kind of hydraulic control device, hydraulic system pacifically machine Download PDFInfo
- Publication number
- CN207278624U CN207278624U CN201721167638.XU CN201721167638U CN207278624U CN 207278624 U CN207278624 U CN 207278624U CN 201721167638 U CN201721167638 U CN 201721167638U CN 207278624 U CN207278624 U CN 207278624U
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- Prior art keywords
- hydraulic
- control device
- action executing
- oil
- load port
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Abstract
The embodiment of the utility model discloses a kind of hydraulic control device, hydraulic system pacifically machine, is related to hydraulic system technology, is invented to improve operating efficiency.The hydraulic control device, including：The hydraulic regulator and action executing device being arranged in series on hydraulic system oil feeding line, the input terminal of the hydraulic regulator is connected with oil feeding line, the output terminal of the action executing device is connected with external loading, and the output terminal of the hydraulic regulator is connected by hydraulic regulation auxiliary body with the input terminal of action executing device；Wherein, the hydraulic regulation auxiliary body includes adjustment structure, the adjustment structure is arranged in parallel between the output terminal of the hydraulic regulator and the input terminal of the action executing device, and the internal pressure of the hydraulic control system can be adjusted according to the external loading pressure of the action executing device.A kind of hydraulic system pacifically machine is also disclosed in the embodiment of the utility model.
Description
Technical field
It the utility model is related to hydraulic system technology, more particularly to a kind of hydraulic control device, hydraulic system pacifically machine.
Background technology
Towed laser flatting machine is to utilize laser control technique, is matched with medium tractor, towards dry land soil essence
Thin smooth agricultural machinery.At present, the hydraulic system solenoid directional control valve used on towed laser flatting machine uses slide-valve structure,
Land level scraper oil cylinder locking mechanism is solved by the middle position closed circuit of solenoid directional control valve.
Fig. 1 show a kind of existing towed laser flatting machine hydraulic system principle figure.The system is by fuel tank A1, filter
A2, gear pump A3, safety valve A4, solenoid directional control valve A5, oil cylinder A6 and oil pipe etc. form.Laser pick-off control system receives signal
Afterwards, control solenoid directional control valve is in different positions, oil cylinder piston is produced movement, control level land perching knife lifting, is in all the time
Setting height.
But such hydraulic control device is big with discharge in system, and energy loss is big, the shortcomings such as operating efficiency is low.By
Operating mode practical application and theory analysis research, find the hydraulic system that is used on current towed laser flatting machine there are it is following not
Foot：(1) when level land perching knife hydraulic cylinder is in locking state, hydraulic system still suffers from certain internal leakage, causes under land level scraper
It is heavy, influence level land precision, add level land perching knife lifting frequency and transition during adjustment number.Energy during use
Consumption is big, and transmission efficiency is low, causes high oil temperature.High oil temperature causes hydraulic oil viscosity to decline, and makes the leakage rate of system obvious
Increase.Oil temperature raises, and causes the greasy property of fluid to decline, causes in element the frictional force between each kinematic pair to increase, and into one
Step promotes oil temperature to raise.The aging of non-metal component, makes fluid go bad in oil temperature rise acceleration system.(2) level land perching knife oil cylinder
In locking state, if during system overload, destruction can be produced to hydraulic system and operating mechanism.
These above-mentioned shortcomings, affect level land efficiency and further improve, while also influence the reliability of complete machine.
Utility model content
In view of this, the utility model embodiment provides a kind of hydraulic control device, hydraulic system pacifically machine, Neng Gouti
High operating efficiency.
To reach above-mentioned purpose, the embodiment of the utility model adopts the following technical scheme that：
A kind of hydraulic control device, including the hydraulic regulator being arranged in series on hydraulic system oil feeding line and action
Executive device, the input terminal of the hydraulic regulator are connected with oil feeding line, the output terminal of the action executing device with it is outer
Section load connects, and the output terminal of the hydraulic regulator passes through hydraulic regulation auxiliary body and the input terminal of action executing device
Connection；Wherein, the hydraulic regulation auxiliary body includes adjustment structure, and the adjustment structure is arranged in parallel in the hydraulic regulation
, can be according to the external loading of the action executing device between the input terminal of the output terminal of mechanism and the action executing device
Pressure adjusts the internal pressure of the hydraulic control system.
Further, the hydraulic regulation auxiliary body includes bidirectional hydraulic lock, in the hydraulic regulator
Locking is carried out to the executive component when main inlet control valve is in middle position.
Further, the bidirectional hydraulic lock includes the first load port and the second load port, fuel-displaced same of the first load port
When open the second load port carry out oil return, opened while the second load port is fuel-displaced first load port carry out oil return.
Further, action executing device includes oil cylinder, and the first load port of the bidirectional hydraulic lock passes through the first oil circuit
Connected with the rod chamber of the oil cylinder, the second load port of the bidirectional hydraulic lock is by the second oil circuit and the oil cylinder without bar
Chamber connects.
Further, Fill valve is set on first oil circuit；Overload valve is set on second oil circuit.
Further, the main inlet control valve is three six logical middle position p-type function solenoid directional control valves.
Further, including laser pick-off control system, after the laser control system receives signal, the electromagnetism is controlled
Reversal valve is in different positions.
On the other hand, the utility model embodiment provides a kind of hydraulic system, including above-mentioned hydraulic control device.
Another further aspect, the utility model embodiment provide a kind of land leveller, including above-mentioned hydraulic system.
Relative to the prior art, the utility model hydraulic control device, hydraulic system pacifically machine, by hydraulic regulation
Hydraulic regulation auxiliary body is set on the oil circuit between mechanism and action actuating mechanism, and being adjusted to operation in action executing device needs
After asking position, utilize hydraulic regulation auxiliary body adjustment oil cylinder hydraulic system oil-way so that the stroke of action executing device from
The influence of the change of external loading, so as to improve land leveller operating efficiency.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is a kind of towed laser flatting machine hydraulic system principle figure of the prior art；
Fig. 2 is a kind of towed laser flatting machine hydraulic system principle figure of the utility model.
Embodiment
To a kind of hydraulic control device of the utility model embodiment, hydraulic system, pacifically machine carries out in detail below in conjunction with the accompanying drawings
Thin description.
Referring to Fig. 2, the utility model embodiment shows the hydraulic control in a kind of towed laser land leveling machine hydraulic system
Device, including the hydraulic regulator and action executing device being arranged in series on hydraulic system oil feeding line, the hydraulic pressure tune
The input terminal of section mechanism is connected with oil feeding line, and the output terminal of the action executing device is connected with external loading.The hydraulic pressure
The output terminal of adjusting mechanism is connected by hydraulic regulation auxiliary body with the input terminal of action executing device；Wherein, the hydraulic pressure
Adjusting auxiliary body includes adjustment structure, and the adjustment structure is arranged in parallel in the output terminal of the hydraulic regulator and described
Between the input terminal of action executing device, the hydraulic pressure control can be adjusted according to the external loading pressure of the action executing device
The internal pressure of system processed.Setting in this way, in adjustment grader lifting, hydraulic system is regulated the speed will not be unexpected
Change, therefore suitable for the fine setting high accuracy operation of special operation condition, ensure level land perching knife operation height not because of the change of external loading
Change and change, improve operating efficiency.
In a specific embodiment, hydraulic oil is pumped in hydraulic system by gear pump 3 from from fuel tank 1.It is miscellaneous to filter
Matter, sets filter 2 between fuel tank 1 and gear pump 3.Adjusting main valve in the output terminal and hydraulic control device of gear pump 3
Input terminal connection.In a specific embodiment, it is solenoid directional control valve 5 to adjust main valve, which can use three
Six logical middle position p-type function solenoid directional control valves.In general, to ensure system safety, in a specific embodiment, in the electromagnetic switch
Safety valve 4 is set between valve 5 and gear pump 3.
The output terminal of the solenoid directional control valve 5 is connected by hydraulic regulation auxiliary body with action actuating mechanism, to ensure
System effectiveness and raising reliability.The action actuating mechanism includes more than one oil cylinder 6.Specifically, the solenoid directional control valve 5
The first delivery outlet and the second delivery outlet connected respectively by hydraulic regulation auxiliary body with the rodless cavity and rod chamber of oil cylinder 6.
In a specific embodiment, which includes at least a bidirectional hydraulic lock 6, in institute
State when solenoid directional control valve 5 is in middle position and locking is carried out to the executive component.The bidirectional hydraulic lock includes the first load port and the
Two load ports, the first load port open the second load port and carry out oil return, beaten while the second load port is fuel-displaced while fuel-displaced
Open the first load port and carry out oil return.After level land perching knife is adjusted to job requirements position, oil cylinder hydraulic system is closed using hydraulic lock
Oil circuit, cut-out and the hydraulic circuit of solenoid directional control valve, thoroughly solve the problems, such as to let out in hydraulic system, so as to lift the peace of hydraulic system
Quan Xing, reduces machine halt trouble.
In a specific embodiment, which, which further includes, is arranged on oil cylinder piston-less lumen and adjusts back
Overload valve on road, and be arranged on oil cylinder and have Fill valve on rod end chamber adjustment circuit, when preventing level land perching knife operation because
Load excessive and to hydraulic system produce destruction.
There is provided the land leveller of the hydraulic control device of the utility model, the process that strikes off operation is being performed in land leveller
In, even if it is higher or when needing to cross concave-convex road surface to run into road surface hardness, will not be led because of the external loading increased suddenly
Cause to let out in hydraulic system, so as to avoid shutdown, therefore operating efficiency can be greatly improved.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Change or replace, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with right
It is required that protection domain subject to.
Claims (9)
1. a kind of hydraulic control device, it is characterised in that including the hydraulic regulation being arranged in series on hydraulic system oil feeding line
Mechanism and action executing device, the input terminal of the hydraulic regulator are connected with oil feeding line, the action executing device
Output terminal is connected with external loading, and the output terminal of the hydraulic regulator is filled by hydraulic regulation auxiliary body and action executing
The input terminal connection put；Wherein, the hydraulic regulation auxiliary body includes adjustment structure, and the adjustment structure is arranged in parallel in institute
State between the output terminal of hydraulic regulator and the input terminal of the action executing device, can be according to the action executing device
External loading pressure adjust the internal pressure of the hydraulic control system.
2. hydraulic control device as claimed in claim 1, it is characterised in that the hydraulic regulation auxiliary body includes two-way liquid
Pressure lock, for carrying out locking to the executive component when the main inlet control valve of the hydraulic regulator is in middle position.
3. hydraulic control device as claimed in claim 2, it is characterised in that the bidirectional hydraulic lock include the first load port and
Second load port, the first load port opens the second load port and carries out oil return while fuel-displaced, while the second load port is fuel-displaced
Open the first load port and carry out oil return.
4. hydraulic control device as claimed in claim 3, it is characterised in that action executing device includes oil cylinder, described two-way
First load port of hydraulic lock is connected by the first oil circuit with the rod chamber of the oil cylinder, the second load of the bidirectional hydraulic lock
Mouth is connected by the second oil circuit with the rodless cavity of the oil cylinder.
5. the hydraulic control device described in claim 4, it is characterised in that Fill valve is set on first oil circuit；Described
Overload valve is set on two oil circuits.
6. the hydraulic control device as described in claim 2-5 is any, it is characterised in that the main inlet control valve is electromagnetic switch
Valve.
7. hydraulic control device as claimed in claim 6, it is characterised in that including laser pick-off control system, the laser
After control system receives signal, the solenoid directional control valve is controlled to be in different positions.
8. a kind of hydraulic system, it is characterised in that including the hydraulic control device as described in claim 1-7 is any.
9. a kind of land leveller, it is characterised in that including hydraulic system as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167638.XU CN207278624U (en) | 2017-09-12 | 2017-09-12 | A kind of hydraulic control device, hydraulic system pacifically machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721167638.XU CN207278624U (en) | 2017-09-12 | 2017-09-12 | A kind of hydraulic control device, hydraulic system pacifically machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278624U true CN207278624U (en) | 2018-04-27 |
Family
ID=61990904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721167638.XU Expired - Fee Related CN207278624U (en) | 2017-09-12 | 2017-09-12 | A kind of hydraulic control device, hydraulic system pacifically machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207278624U (en) |
-
2017
- 2017-09-12 CN CN201721167638.XU patent/CN207278624U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20180427 Termination date: 20210912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |