CN203098472U - Direct-acting type overload oil-recharging valve - Google Patents
Direct-acting type overload oil-recharging valve Download PDFInfo
- Publication number
- CN203098472U CN203098472U CN 201320052386 CN201320052386U CN203098472U CN 203098472 U CN203098472 U CN 203098472U CN 201320052386 CN201320052386 CN 201320052386 CN 201320052386 U CN201320052386 U CN 201320052386U CN 203098472 U CN203098472 U CN 203098472U
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- valve
- oil
- direct
- acting type
- type overload
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a direct-acting type overload oil-recharging valve which comprises a valve body, a main valve core, an oil-recharging valve core, a pressure-adjusting spring, a reset spring and an adjusting screw cap, wherein the main valve core is arranged in the valve body. Compared with an existing pilot-operated type overload oil-recharging valve, due to the fact that the direct-acting type overload oil-recharging valve does not need an auxiliary valve body, pressure oil, namely, feeding oil, of a system working cavity directly acts on the main valve core so that force of the pressure oil and spring force of the adjusting spring are balanced, and therefore motions of opening and closing of the main control valve are controlled. Compared with the prior art, the direct-acting type overload oil-recharging valve has the advantages of being simple in structure, fast in response when overload occurs, and capable of effectively avoiding burst of an oil pipe due to choke or damaging a pump.
Description
Technical field
The utility model relates to the hydrovalve in a kind of hydraulic system, particularly a kind of direct-acting type overload Fill valve.
Background technique
Existing overload Fill valve is the leading type structure, and leading type overload Fill valve has two valve bodies.One is main valve body, and another is an auxiliary valve body, and it mainly is to be that the keying of the spool of pilot valve changes the equilibrium of forces state that acts on the valve core of main valve by Auxiliary valves, with the switching motion of control valve core of main valve.Because this leading type overload Fill valve complex structure, response time is longer when overload, if compression shock is that the long meeting of response time that occurs moment bring immeasurable loss to system easily in engineering machinery, such as suppressing quick-fried oil pipe or damaging pump.Therefore, the response time shortens when how to make overload Fill valve overload, improves the new developing direction that reaction efficiency has become the overload Fill valve.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of novel direct-acting type overload Fill valve, the technological scheme that it adopts is: a kind of direct-acting type overload Fill valve, comprise valve body, place main valve plug, repairing spool in the valve body, also comprise pressure adjusting spring, Returnning spring and adjusting nut.
The utility model further technical characteristics is:
Also comprise the bonnet that is complementary with the adjusting nut.
Also be provided with copper backing, back-up ring and O shape circle on the described valve body.
The beneficial effects of the utility model are: because the existing leading type overload of a kind of direct-acting type overload of the utility model Fill valve Fill valve has been save the Auxiliary valves valve body, the pressure oil in system works chamber is that the spring force that oil-feed acts directly on the main valve plug with pressure adjusting spring balances each other, switching motion with the control main valve plug, therefore simple in structure, response can effectively be avoided suppressing quick-fried oil pipe or damage pump rapidly during overload.
Description of drawings
Fig. 1 is the utility model structure sectional view;
Fig. 2 is the utility model erection drawing in actual applications.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of direct-acting type overload Fill valve comprises valve body 1, places in the valve body 1 main valve plug 2, repairing spool 3, also comprises pressure adjusting spring 4, Returnning spring 5 and regulates nut 6.In the embodiment shown in fig. 1, for safety and dustproof the needs, described direct-acting type overload Fill valve also comprises and regulates the bonnet 7 that nut 6 is complementary, in order to install and, also to be provided with copper backing 8, back-up ring 9 and O shape circle 10 on the valve body 1 of the overload of direct-acting type described in the embodiment shown in Figure 1 Fill valve in order to reach sealing effect.
Fig. 2 is the erection drawing in the utility model practical application, and in actual applications, the A chamber is an active chamber, and the T chamber is communicated with fuel tank, when the A cavity pressure raises, under the effect of pressure repairing spool 3 is being pressed onto on the main valve plug 2; Pressure continues to raise, and when pressure surpassed pressure adjusting spring 4 pressure, main valve plug 2 was moved to the left, and realizes overload protection thereby pressure oil flows to T from A.When negative pressure appearred in the A cavity pressure, the oil in T chamber was then pushed repairing spool 3 open, and the oil in T chamber then flows to the A chamber by the aperture on the main valve plug 2, thereby realized the function of repairing.
Because the existing leading type overload of a kind of direct-acting type overload of the utility model Fill valve Fill valve has been save the Auxiliary valves valve body, the pressure oil of system works chamber A is that the spring force that oil-feed acts directly on the main valve plug 2 with pressure adjusting spring 4 balances each other, switching motion with control main valve plug 2, therefore simple in structure, response can effectively be avoided suppressing quick-fried oil pipe or damage pump rapidly during overload.
Though the utility model has been described embodiment herein; but coverage area of the present utility model is not limited thereto; the utility model is contained all within the scope of the claims all technological schemes of falling in fact on literal or under the instruction in equivalents, and protection domain of the present utility model is as the criterion with claims.
Claims (3)
1. a direct-acting type overload Fill valve is characterized in that comprising valve body, places main valve plug, repairing spool in the valve body, also comprises pressure adjusting spring, Returnning spring and adjusting nut.
2. direct-acting type overload Fill valve as claimed in claim 1 is characterized in that: also comprise the bonnet that is complementary with the adjusting nut.
3. direct-acting type overload Fill valve as claimed in claim 1 is characterized in that: also be provided with copper backing, back-up ring and O shape circle on the described valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052386 CN203098472U (en) | 2013-01-30 | 2013-01-30 | Direct-acting type overload oil-recharging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320052386 CN203098472U (en) | 2013-01-30 | 2013-01-30 | Direct-acting type overload oil-recharging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098472U true CN203098472U (en) | 2013-07-31 |
Family
ID=48849877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320052386 Expired - Fee Related CN203098472U (en) | 2013-01-30 | 2013-01-30 | Direct-acting type overload oil-recharging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098472U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345533A (en) * | 2017-08-31 | 2017-11-14 | 徐工集团工程机械有限公司 | Overload oil compensating valve and overload oil-supplementing system |
| CN108266414A (en) * | 2018-01-15 | 2018-07-10 | 邵立坤 | A kind of plug-in overload oil compensating valve |
| CN111946685A (en) * | 2020-08-11 | 2020-11-17 | 上海强田液压股份有限公司 | Structure of direct-acting overload oil replenishing valve |
-
2013
- 2013-01-30 CN CN 201320052386 patent/CN203098472U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345533A (en) * | 2017-08-31 | 2017-11-14 | 徐工集团工程机械有限公司 | Overload oil compensating valve and overload oil-supplementing system |
| CN107345533B (en) * | 2017-08-31 | 2023-12-08 | 江苏徐工工程机械研究院有限公司 | Overload oil supply valve and overload oil supply system |
| CN108266414A (en) * | 2018-01-15 | 2018-07-10 | 邵立坤 | A kind of plug-in overload oil compensating valve |
| CN111946685A (en) * | 2020-08-11 | 2020-11-17 | 上海强田液压股份有限公司 | Structure of direct-acting overload oil replenishing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI QIANGTIAN HYDRAULIC PRESSURE CO., LTD. Free format text: FORMER NAME: SHANGHAI QIANGTIAN HYDRAULIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201815, C, 1 building, No. 3816, Qian Qian highway, Jiading industrial district, Shanghai Patentee after: SHANGHAI QT FLUID Co.,Ltd. Address before: 201801 Shanghai Jiading District Malu Town Great Road No. 501 three layer Patentee before: SHANGHAI QIANGTIAN HYDRAULIC TECHNOLOGY Co.,Ltd. |
|
| 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: 20130731 Termination date: 20220130 |