CN203066141U - Blader hood lifting hydraulic control system - Google Patents
Blader hood lifting hydraulic control system Download PDFInfo
- Publication number
- CN203066141U CN203066141U CN 201320040223 CN201320040223U CN203066141U CN 203066141 U CN203066141 U CN 203066141U CN 201320040223 CN201320040223 CN 201320040223 CN 201320040223 U CN201320040223 U CN 201320040223U CN 203066141 U CN203066141 U CN 203066141U
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- China
- Prior art keywords
- hood
- hydraulic control
- valve
- way
- electromagnetic valve
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Abstract
The utility model discloses a blader hood lifting hydraulic control system. The blader hood lifting hydraulic control system comprises a hood (1), a hood lifting oil cylinder (2), a hydraulic oil tank (5), a brake accumulator (6) and a charging valve oil source (7), and further comprises a hydraulic control one-way valve (3) and a three-position four-way electromagnetic valve (4), wherein a rod cavity oil port B2 of the hood lifting oil cylinder is connected with an oil port B1 of the hydraulic control one-way valve; a rodless cavity oil port A2 of the hood lifting oil cylinder is connected with an oil port A1 of the hydraulic control one-way valve; an oil port P1 of the hydraulic control one-way valve is connected with a port A of the three-position four-way electromagnetic valve; an oil port T1 of the hydraulic control one-way valve is connected with an oil port B of the three-position four-way electromagnetic valve; a port P of the three-position four-way electromagnetic valve is connected with an oil port of the brake accumulator; and a port T of the three-position four-way electromagnetic valve is connected with the hydraulic oil tank. The blader hood lifting hydraulic control system is matched with the three-position four-way electromagnetic valve and the hydraulic control one-way valve, so that the lifting efficiency is improved, the labor intensity for operating lifting and descending of a hood is reduced, and a locking function of the oil cylinder of the blader hood is achieved.
Description
Technical field
The utility model relates to a kind of hydraulic control system, is specifically related to a kind of land leveller hood lifting hydraulic control system.
Background technology
Land leveller is the main machinery that is used for shaping and smooth operation in the ground works, simultaneously, land leveller can also dispose aids such as dozer and ridge buster, with its scope of application of further expansion, be a kind of usefulness height, homework precision is good, purposes is wide construction machinery, be that frequent generation also is very important to its maintenance or maintenance therefore.
At present, need open hood fully when the land leveller of a lot of models is maintained on the market, but that generally all adopts handlance and hood hoist cylinder is used to realize the hood lifting, this mode of operation need be by pressing tens times even up to a hundred handlances could rise hood fully repeatedly, have a strong impact on the progress of work of land leveller, strengthened the working strength of operating personnel maintenances, maintenance, wasted time and energy.
Summary of the invention
At the problem that above-mentioned prior art exists, the utility model provides a kind of land leveller hood lifting hydraulic control system, improves the efficient of lifting, alleviates the labour intensity of operation hood lifting, realizes the locking function of land leveller hood oil cylinder simultaneously.
To achieve these goals, the technical solution adopted in the utility model is: a kind of land leveller hood lifting hydraulic control system, comprise hood, hood hoist cylinder, hydraulic oil container, brake accumulator and prefill valve oil sources, also comprise hydraulic control one-way valve and three position four-way electromagnetic valve, the rod chamber B2 hydraulic fluid port of hood hoist cylinder is connected with the B1 hydraulic fluid port of hydraulic control one-way valve, and the rodless cavity A2 hydraulic fluid port of hood hoist cylinder is connected with the A1 hydraulic fluid port of hydraulic control one-way valve; The P1 hydraulic fluid port of hydraulic control one-way valve is connected with the A mouth of three position four-way electromagnetic valve, and the T1 hydraulic fluid port of hydraulic control one-way valve is connected with the B hydraulic fluid port of three position four-way electromagnetic valve; The P mouth of three position four-way electromagnetic valve is connected with the hydraulic fluid port of brake accumulator, and the T mouth of three position four-way electromagnetic valve is connected with hydraulic oil container.
This land leveller hood lifting hydraulic control system utilizes normal prefill valve oil sources, the brake accumulator of using of land leveller, cooperate three position four-way electromagnetic valve, hydraulic control one-way valve to realize the lifting control of hood oil cylinder, improved the efficient of lifting, alleviated the labour intensity of operation hood lifting, it can realize rising and the decline of hood in operating process, rise, descend when stopping, hood remains on its position that stops, and has realized the locking function of land leveller hood oil cylinder simultaneously.
Description of drawings
Fig. 1 is the hydraulic scheme of this utility model.
Among the figure: 1, hood, 2, the hood hoist cylinder, 3, hydraulic control one-way valve, 4, three position four-way electromagnetic valve, 5, hydraulic oil container, 6, brake accumulator, 7, the prefill valve oil sources.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, this land leveller hood lifting hydraulic control system, comprise hood 1, hood hoist cylinder 2, hydraulic oil container 5, brake accumulator 6 and prefill valve oil sources 7, also comprise hydraulic control one-way valve 3 and three position four-way electromagnetic valve 4, the rod chamber B2 hydraulic fluid port of hood hoist cylinder 2 is connected with the B1 hydraulic fluid port of hydraulic control one-way valve 3, and the rodless cavity A2 hydraulic fluid port of hood hoist cylinder 2 is connected with the A1 hydraulic fluid port of hydraulic control one-way valve 3; The P1 hydraulic fluid port of hydraulic control one-way valve 3 is connected with the A mouth of three position four-way electromagnetic valve 4, and the T1 hydraulic fluid port of hydraulic control one-way valve 3 is connected with the B hydraulic fluid port of three position four-way electromagnetic valve 4; The P mouth of three position four-way electromagnetic valve 4 is connected with the hydraulic fluid port of brake accumulator 6, and the T mouth of three position four-way electromagnetic valve 4 is connected with hydraulic oil container 5.
During work, hydraulic oil container 5 is to system's fuel feeding, at this moment, prefill valve oil sources 7 is to brake accumulator 6 fuel feeding, brake accumulator 6 is full of fluid and offers the P mouth of three position four-way electromagnetic valve 4, the Y1 of three position four-way electromagnetic valve 4 end energising during hood 1 vertical motion, and the fluid of brake accumulator 6 enters the P1 mouth of hydraulic control one-way valve 3 through the A of three position four-way electromagnetic valve 4 mouth, enter the rodless cavity hydraulic fluid port A2 of hood hoist cylinder 2 through the A1 of hydraulic control one-way valve 3 mouth, realize that hood 1 rises;
During hood 1 down maneuver, the Y2 end energising of three position four-way electromagnetic valve 4, the fluid of brake accumulator 6 enters the T1 mouth of hydraulic control one-way valve 3 through the B of three position four-way electromagnetic valve 4 mouth, enter the rod chamber B2 of hood hoist cylinder 2 from the B1 mouth of hydraulic control one-way valve 3, open the oil circuit of the P1 to A1 of hydraulic control one-way valve 3 simultaneously, fluid can be flowed from A1 to P mouth, realize the hood down maneuver; The Y1 of three position four-way electromagnetic valve 4, Y2 end all must not when the hood lifting stopped to move, the A of three position four-way electromagnetic valve 4, B, T mouth oil circuit communicate, A1 to the P mouth oil circuit sealing of hydraulic control one-way valve 3 realizes the function in the big chamber of locked hood hoist cylinder, and then realizes that hood remains on stop position.
Claims (1)
1. land leveller hood lifting hydraulic control system, comprise hood (1), hood hoist cylinder (2), hydraulic oil container (5), brake accumulator (6) and prefill valve oil sources (7), it is characterized in that, also comprise hydraulic control one-way valve (3) and three position four-way electromagnetic valve (4), the rod chamber B2 hydraulic fluid port of hood hoist cylinder (2) is connected with the B1 hydraulic fluid port of hydraulic control one-way valve (3), and the rodless cavity A2 hydraulic fluid port of hood hoist cylinder (2) is connected with the A1 hydraulic fluid port of hydraulic control one-way valve (3); The P1 hydraulic fluid port of hydraulic control one-way valve (3) is connected with the A mouth of three position four-way electromagnetic valve (4), and the T1 hydraulic fluid port of hydraulic control one-way valve (3) is connected with the B hydraulic fluid port of three position four-way electromagnetic valve (4); The P mouth of three position four-way electromagnetic valve (4) is connected with the hydraulic fluid port of brake accumulator (6), and the T mouth of three position four-way electromagnetic valve (4) is connected with hydraulic oil container (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040223 CN203066141U (en) | 2013-01-25 | 2013-01-25 | Blader hood lifting hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320040223 CN203066141U (en) | 2013-01-25 | 2013-01-25 | Blader hood lifting hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066141U true CN203066141U (en) | 2013-07-17 |
Family
ID=48764952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320040223 Expired - Lifetime CN203066141U (en) | 2013-01-25 | 2013-01-25 | Blader hood lifting hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066141U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452868A (en) * | 2014-09-26 | 2015-03-25 | 太原理工大学 | Double-hydraulic-cylinder mixed drive control system |
| CN110081032A (en) * | 2019-06-05 | 2019-08-02 | 中国铁建重工集团股份有限公司 | A kind of engineering machinery and its hydraulic power mechanism |
-
2013
- 2013-01-25 CN CN 201320040223 patent/CN203066141U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452868A (en) * | 2014-09-26 | 2015-03-25 | 太原理工大学 | Double-hydraulic-cylinder mixed drive control system |
| CN104452868B (en) * | 2014-09-26 | 2017-02-15 | 太原理工大学 | Double-hydraulic-cylinder mixed drive control system |
| CN110081032A (en) * | 2019-06-05 | 2019-08-02 | 中国铁建重工集团股份有限公司 | A kind of engineering machinery and its hydraulic power mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |