CN202132412U - Novel electronic control speed shift valve - Google Patents
Novel electronic control speed shift valve Download PDFInfo
- Publication number
- CN202132412U CN202132412U CN201120230718U CN201120230718U CN202132412U CN 202132412 U CN202132412 U CN 202132412U CN 201120230718 U CN201120230718 U CN 201120230718U CN 201120230718 U CN201120230718 U CN 201120230718U CN 202132412 U CN202132412 U CN 202132412U
- Authority
- CN
- China
- Prior art keywords
- valve
- speed shift
- quick return
- speed change
- gear
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a speed shift valve, in particular to a novel electronic control speed shift valve, which comprises a quick return valve, an actuated switch, an electric proportional pressure regulating valve and a gear shifting switch valve, wherein the quick return valve is arranged on a speed-shifting main oil way of the speed shift valve, an oil outlet I and an oil outlet II are respectively arranged under the right end of the main oil way of the speed shift valve and on a branch oil way which is connected with the electric proportional pressure regulating valve, and the gear shifting switch valve controls the opening and closing of the oil way of a gear clutch through electric signals. In the novel electronic control speed shift valve, pressure switches needed to be installed in each clutch are replaced by the quick return valve, thereby lowering the manufacturing cost and improving the accuracy and reliability of the speed shift.
Description
Technical field
The utility model relates to a kind of speed change valve, especially relates to a kind of new electronic control speed change valve.
Background technique
Each corresponding during the automatically controlled speed change valve speed change of engineering machinery clutch all has a pressure regulation process, influence the speed change valve speed change whether steadily principal element be exactly between a timing of pressure and the pressure regulation curve, the pressure regulation curve can easily be accomplished through electrical signal by electric proportional valve.General automatically controlled speed change valve is installed a pressure switch on each clutch oil circuit; Detect clutch pressure through pressure switch; Judge whether clutch is full of fluid and begins pressure regulation then; Yet pressure switch is as electronic component, the one, the bad assurance of testing precision, the 2nd, pressure switch cost an arm and a leg and reliability not high.
Summary of the invention
The utility model technical problem to be solved is: to the deficiency of above-mentioned existing technology; A kind of new electronic control speed change valve is provided; Adopt a quick return valve to replace the pressure switch on each clutch; As long as clutch is full of fluid, quick return valve just ability self-return adapts to the clutch of different sizes as activation signal.
The utility model is that the technological scheme that problem adopted of the above-mentioned proposition of solution is:
A kind of new electronic control speed change valve; Comprise quick return valve 1, actuatable switches 2, electric proportional dump valve 3 and Gear-shift switch valve 4; A quick return valve 1 is installed on speed change valve speed change working connection; Be respectively equipped with drain tap I 5 and drain tap II 6 below the speed change valve working connection right-hand member and on the oil circuit of the electric proportional dump valve 3 of connection, Gear-shift switch valve 4 opening and cutting out through electric wire size control gear clutch oil circuit.
The working principle of the utility model: when automatically controlled gear shifting handle was carried out gear-change operation, electrical signal was actuated Gear-shift switch valve 4 and will be led to gear clutch oil circuit and open, and begins to clutch oil-filled; This moment, electric proportional dump valve 3 was not worked, because the power effect quick return valve 1 that surges is pushed to high order end, fluid flows and stops basically when fluid is full of the gear clutch; Quick return valve 1 right ends pressure is the same basically, but because right ends stress surface product moment, quick return valve 1 will be pushed to low order end under action of hydraulic force; Can urge to run into actuatable switches 2 when pushing low order end to; Actuatable switches 2 will be to 3 one electrical signal of electric proportional dump valve, and this moment, electric proportional dump valve 3 beginning pressure regulation realized smooth shifting; When fluid flows out through drain tap I 5 and drain tap II 6, return to working state again.
The beneficial effect of the utility model is:
1, utilizes a quick return valve to replace the pressure switch that all need install on each clutch, lowered cost;
2, the electrical signal that produces of actuatable switches is as the pressure regulation initiatic signal of automatically controlled speed change valve, make the speed change valve speed-change process become more steadily reliable and precision high.
Description of drawings
Fig. 1 is a quick return valve not during activated state, the structural representation of the utility model.
When Fig. 2 is the quick return valve activated state, the structural representation of the utility model.
Wherein, 1-quick return valve, 2-actuatable switches, 3-electricity proportional dump valve, 4-Gear-shift switch valve, 5-drain tap I, 6-drain tap II.
Embodiment
Further specify the embodiment of the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1-2; A kind of new electronic control speed change valve; Comprise quick return valve 1, actuatable switches 2, electric proportional dump valve 3 and Gear-shift switch valve 4; A quick return valve 1 is installed on speed change valve speed change working connection, is being respectively equipped with drain tap I 5 and drain tap II 6 below the speed change valve working connection right-hand member and on the oil circuit of the electric proportional dump valve 3 of connection, Gear-shift switch valve 4 opening and cutting out through electric wire size control gear clutch oil circuit.
The working principle of this embodiment: as shown in Figure 1, when automatically controlled gear shifting handle was carried out gear-change operation, electrical signal was actuated Gear-shift switch valve 4 and will be led to gear clutch oil circuit and open; Shown in a among Fig. 1, begin to clutch oil-filled, this moment electric proportional dump valve 3 do not work; Power effect quick return valve 1 is pushed to high order end owing to surge, and fluid flows and stops basically when fluid is full of the gear clutch, and quick return valve 1 right ends pressure is the same basically; But because right ends stress surface product moment, quick return valve 1 will be pushed to low order end under action of hydraulic force, and will be as shown in Figure 2; Can urge to run into actuatable switches 2 when pushing low order end to; Actuatable switches 2 will be to 3 one electrical signal of electric proportional dump valve, and this moment, electric proportional dump valve 3 beginning pressure regulation realized smooth shifting; When fluid flows out through drain tap I 5 and drain tap II 6, return to working state as shown in Figure 1 again.
The beneficial effect of this embodiment is: utilize a quick return valve to replace the pressure switch that all need install on each clutch, reduced cost; In addition, the electrical signal that actuatable switches produces is as the pressure regulation initiatic signal of automatically controlled speed change valve, make the speed change valve speed-change process become more steadily reliable and precision high.
Claims (1)
1. new electronic control speed change valve; It is characterized in that: comprise quick return valve (1), actuatable switches (2), electric proportional dump valve (3) and Gear-shift switch valve (4); A quick return valve (1) is installed on speed change valve speed change working connection; Be respectively equipped with drain tap I (5) and drain tap II (6) below the speed change valve working connection right-hand member and on the oil circuit of the electric proportional dump valve of connection (3), Gear-shift switch valve (4) opening and cutting out through electric wire size control gear clutch oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120230718U CN202132412U (en) | 2011-07-03 | 2011-07-03 | Novel electronic control speed shift valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120230718U CN202132412U (en) | 2011-07-03 | 2011-07-03 | Novel electronic control speed shift valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132412U true CN202132412U (en) | 2012-02-01 |
Family
ID=45521179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120230718U Expired - Fee Related CN202132412U (en) | 2011-07-03 | 2011-07-03 | Novel electronic control speed shift valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11725725B2 (en) | 2021-08-24 | 2023-08-15 | Dana Italia S.R.L. | Hydraulic system with smart relief valve and valve control method |
-
2011
- 2011-07-03 CN CN201120230718U patent/CN202132412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11725725B2 (en) | 2021-08-24 | 2023-08-15 | Dana Italia S.R.L. | Hydraulic system with smart relief valve and valve 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: 20120201 Termination date: 20160703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |