CN202603167U - Electro-hydraulic control lifting mechanism - Google Patents
Electro-hydraulic control lifting mechanism Download PDFInfo
- Publication number
- CN202603167U CN202603167U CN 201220251393 CN201220251393U CN202603167U CN 202603167 U CN202603167 U CN 202603167U CN 201220251393 CN201220251393 CN 201220251393 CN 201220251393 U CN201220251393 U CN 201220251393U CN 202603167 U CN202603167 U CN 202603167U
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- electro
- valve
- hydraulic
- ecu
- pressure oil
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- Expired - Fee Related
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- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an electro-hydraulic control lifting mechanism, which comprises a low-pressure oil filter, wherein the low-pressure oil filter is sequentially connected with a hydraulic pump and a high-pressure oil filter; the high-pressure oil filter is respectively connected with an oil return valve and an overflow valve, and is also connected with an electro-hydraulic proportional reversal valve; the electro-hydraulic proportional reversal valve is connected with a one-way throttle valve and an electronic control unit (ECU); the one-way throttle valve is connected with a hydraulic cylinder; and the ECU is connected with a sensor. The sensor is used for detecting stress and displacement of a farming tool, information is transmitted to the ECU of a vehicular computer, the ECU controls movement of the electro-hydraulic proportional reversal valve, so that the position of a suspension device is adjusted, and farming depth and farming force are adjusted. Compared with the prior art, the electro-hydraulic control lifting mechanism has the advantages that the electro-hydraulic proportional reversal valve can be quickly controlled timely through the sensor and the ECU, and hysteresis is avoided.
Description
Technical field
The utility model relates to a kind of farm implements mechanical type suspension, is specifically related to a kind of lifter of controlling the farm implements tilling depth.
Background technology
In agricultural production process, need utilize the tractive force of lifter control tilth and tractor.Traditional hydraulic rockshaft structure is seen shown in the accompanying drawing 1, mainly is made up of low-pressure filter 1, hydraulic pump 2, high-pressure filter 3, one-way throttle valve 6, main control valve 13 and lowering speed control valve 12, and it has lifting, neutrality, decline, the four kinds of functions of floating.Its operation principle is following: when main control valve 13 was in the neutral position, oil is oil sump tank directly, and oil return valve 4 is opened, and this moment, main control valve 13 port for drawdown were closed, and farm implements rest on a certain position; Mobile main control system valve 13 makes it be in raised position, and oil return valve 4 cuts out, and the hydraulic oil of hydraulic pump 2 gets into hydraulic cylinder 9 through one-way throttle valve 6, and farm implements are promoted; Reverse mobile main control system valve 13, the hydraulic oil in the hydraulic cylinder 9 are at the deadweight effect refluxed fuel tank of farm implements, and the pressure oil of hydraulic pump 2 outlets flows back to fuel tank through oil return valve 4." power " of the lifter of this structure and the adjusting of " position " are controlled manual control through operating personnel; Tractive force through suspension stressed control tilth of lower link and tractor; But see that from operating personnel ground various situation is to carrying out manual adjustments; Middle time difference of existence makes to regulate to have hysteresis quality, is unfavorable for cultivating of crop.
The utility model content
The technical problem that the utility model will solve is to have hysteresis quality when having lifter control now, and a kind of control electrichydraulic control lifter timely is provided.
The technical scheme of the utility model realizes in the following manner: a kind of electrichydraulic control lifter; Comprise that low-pressure filter, low-pressure filter link to each other with hydraulic pump, high-pressure filter successively; High-pressure filter links to each other with oil return valve, overflow valve respectively, and high-pressure filter links to each other with electro-hydraulic proportion reversing valve, and electro-hydraulic proportion reversing valve links to each other with one-way throttle valve, ECU; One-way throttle valve links to each other with hydraulic cylinder, and ECU links to each other with sensor.
The utility model utilizes sensor to detect the stressed and displacement of tillage implements, and information is passed to vehicle-mounted computer ECU, and ECU control electrohydraulic proportional control valve moves, and then regulates the position of suspension arrangement, has realized the adjustment of tilth and dynamics.Compared with prior art, the utility model can be controlled electro-hydraulic proportion reversing valve timely through sensor, ECU, and its control is fast, does not have hysteresis quality.
Description of drawings
Fig. 1 is the prior art constructions sketch map.
Fig. 2 is the structural representation of the utility model.
Embodiment
Shown in accompanying drawing, a kind of electrichydraulic control lifter comprises that low-pressure filter 1, low-pressure filter 1 link to each other with high-pressure filter 3 with hydraulic pump 2 successively; High-pressure filter 3 respectively with oil return valve 4, overflow valve 5; High-pressure filter 3 links to each other with electro-hydraulic proportion reversing valve 7, and electro-hydraulic proportion reversing valve 7 links to each other with one-way throttle valve 6, ECU, and one-way throttle valve 6 links to each other with hydraulic cylinder 9; Hydraulic cylinder 9 links to each other with suspension arrangement 10, and ECU8 links to each other with sensor 11.ECU 8 links to each other with control panel 14, can show current various information through control panel 14.
The utlity model has lifting, neutrality, three kinds of operating modes of decline; Its operation principle is: when electro-hydraulic proportion reversing valve 7 is in the neutral position; The pressure oil of hydraulic pump 2 outlets is through oil return valve 4 direct oil sump tanks, and this moment, electro-hydraulic proportion reversing valve 7 port for drawdown were closed, and farm implements rest on a certain position; When electro-hydraulic proportion reversing valve 7 spools move to right and when being in down position, electro-hydraulic proportion reversing valve 7 port for drawdown are opened, the fluid in the hydraulic cylinder 9 is at the dirty oil sump tank of farm implements deadweight effect, and the pressure oil of hydraulic pump 2 outlets flows back to fuel tank through oil return valve 4, and farm implements descend; When electro-hydraulic proportion reversing valve 7 spools move to left and when being in raised position, the pressure oil of hydraulic pump 2 oil-outs gets into hydraulic cylinders 9 through one-way throttle valve 6 promotes farm implements.
Claims (1)
1. electrichydraulic control lifter; Comprise that low-pressure filter (1), low-pressure filter (1) link to each other with hydraulic pump (2), high-pressure filter (3) successively; High-pressure filter (3) links to each other with oil return valve (4), overflow valve (5) respectively; It is characterized in that: high-pressure filter (3) links to each other with electro-hydraulic proportion reversing valve (7); Electro-hydraulic proportion reversing valve (7) links to each other with one-way throttle valve (6), ECU (8), and one-way throttle valve (6) links to each other with hydraulic cylinder (9), and ECU (8) links to each other with sensor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251393 CN202603167U (en) | 2012-05-31 | 2012-05-31 | Electro-hydraulic control lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251393 CN202603167U (en) | 2012-05-31 | 2012-05-31 | Electro-hydraulic control lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202603167U true CN202603167U (en) | 2012-12-19 |
Family
ID=47336912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251393 Expired - Fee Related CN202603167U (en) | 2012-05-31 | 2012-05-31 | Electro-hydraulic control lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202603167U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104541636A (en) * | 2014-12-30 | 2015-04-29 | 江苏大学 | Electric control method and electric control device for adjustment of hydraulic suspension position of tractor |
| CN106050768A (en) * | 2016-06-30 | 2016-10-26 | 江苏大学 | Electric-hydraulic hitch system of tractor |
| CN106612682A (en) * | 2017-01-04 | 2017-05-10 | 江苏大学 | Electro-hydraulic hanging field end self-adaptive lifting device for tractor and control method |
| CN106982561A (en) * | 2015-09-24 | 2017-07-28 | 罗伯特·博世有限公司 | The apparatus and method for adjusting the operation for the drag device that the hydraulic pressure at vehicle can be actuated |
-
2012
- 2012-05-31 CN CN 201220251393 patent/CN202603167U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104541636A (en) * | 2014-12-30 | 2015-04-29 | 江苏大学 | Electric control method and electric control device for adjustment of hydraulic suspension position of tractor |
| CN106982561A (en) * | 2015-09-24 | 2017-07-28 | 罗伯特·博世有限公司 | The apparatus and method for adjusting the operation for the drag device that the hydraulic pressure at vehicle can be actuated |
| CN106982561B (en) * | 2015-09-24 | 2021-07-23 | 罗伯特·博世有限公司 | Device and method for controlling the operation of a hydraulically actuable trailer on a vehicle |
| CN106050768A (en) * | 2016-06-30 | 2016-10-26 | 江苏大学 | Electric-hydraulic hitch system of tractor |
| CN106612682A (en) * | 2017-01-04 | 2017-05-10 | 江苏大学 | Electro-hydraulic hanging field end self-adaptive lifting device for tractor and control method |
| CN106612682B (en) * | 2017-01-04 | 2019-02-05 | 江苏大学 | One kind being used for the adaptive lifting device of tractor electro-hydraulic hitch the edge of a field and 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: 20121219 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |