CN203627956U - High pressure protection valve for gearbox - Google Patents
High pressure protection valve for gearbox Download PDFInfo
- Publication number
- CN203627956U CN203627956U CN201320831521.2U CN201320831521U CN203627956U CN 203627956 U CN203627956 U CN 203627956U CN 201320831521 U CN201320831521 U CN 201320831521U CN 203627956 U CN203627956 U CN 203627956U
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve seat
- way valve
- steel ball
- valve
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000003116 impacting effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model provides a technical scheme of a high pressure protection valve for a gearbox. According to the scheme, the high pressure protection valve comprises a valve body, a threaded plug head, a return spring, a one-way valve seat and a steel ball. The valve body is hollow and is provided with an oil inlet and an oil outlet with the threaded inner wall. The threaded plug head is fixed to the threaded inner wall of the oil outlet of the valve body. The one-way valve seat is arranged in the valve body. The return spring is arranged between the one-way valve seat and the threaded plug head. The inner opening of the oil inlet of the valve body is conical. The steel ball is arranged between the one-way valve seat and the oil inlet. According to the scheme, the response speed is high, the controllability of starting and stopping is good, the structure is simple, the reliability is high, pressure relief can be effectively carried out on a gear case of an engine, and high pressure is prevented from impacting and damaging the gear case.
Description
Technical field
The utility model relates to a kind of car engine machine gearbox valve, especially a kind of gearbox high voltage protective valve.
Background technique
In the prior art, known technology is: in recent years, along with the demand of country to renewable energy sources and new energy, along with becoming increasingly conspicuous of grobal environment and energy problem, the novel electric vehicle of developing low oil consumption, low emission becomes the top priority of current China Automobile Industry, and the appearance of hybrid vehicle has solved the short shortcoming of pure electric automobile continual mileage, simultaneously it can be realized electric-only mode and travels; Hybrid vehicle can be realized the city employing electric drive of travelling, and has avoided the increase of accelerating frequently and slowing down to oil consumption, also can guarantee that district adopts fuel oil to travel on the outskirts of a town, the problems such as difficulty of travelling that having avoided is short of power causes.Therefore the automobile of mixed power occurs being considered to changing one of the most representative scheme to clean energy vehicle.
But hybrid vehicle when switch between electric drive and fuel oil drive, and can cause the high-pressure shocking wave of moment to cause damage to gear-box, this is the existing deficiency of prior art.
Model utility content
The purpose of this utility model; be exactly for the existing deficiency of prior art; and provide a kind of technological scheme of gearbox high voltage protective valve; this scheme fast response time; keying controllability is good, simple in structure can, by property high; can effectively carry out release to the gear-box of motor, prevent that impacting with high pressure from damaging gear-box.
This programme is achieved by the following technical measures: a kind of gearbox high voltage protective valve, includes valve body, screw plug, return spring, one-way valve seat and steel ball; Valve inner hollow, valve body is provided with the oil outlet of filler opening and threaded inwall; Screw plug is fixed on the screw thread inwall of valve body oil outlet; One-way valve seat is arranged on valve inner; Between one-way valve seat and screw plug, be provided with return spring; The internal orifice of valve body filler opening is shaped as taper shape; Steel ball is arranged between one-way valve seat and filler opening.
As this programme preferably: one-way valve seat is conical surface by the one side of filler opening.
As this programme preferably: on valve body outer side surface, be fixed with seal ring.
As this programme preferably: the bottom center of screw plug is provided with through hole.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due to the sealing configuration of the employing steel ball of valve inner in this scheme and the conical surface, utilize return spring to promote one-way valve seat and compress steel ball, in the time that high-pressure shocking wave forms, hydraulic oil is washed steel ball open and is entered valve body, flow out by steel ball and conical surface gap, thereby reach the pressure of laying down gearbox oil product.In the time that oil pressure drops to certain value, return spring active force is greater than hydraulic pressure and steel ball is taken a seat closes pressure-relief valve, has guaranteed so quick response and the keying of product.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1 is screw plug, and 2 is return spring, and 3 is valve body, and 4 is one-way valve seat, and 5 is seal ring, and 6 is steel ball, and 7 is filler opening, and 8 is oil outlet, and 9 is through hole.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, this programme include valve body, screw plug, return spring, one-way valve seat and steel ball; Valve inner hollow, valve body is provided with the oil outlet of filler opening and threaded inwall; Screw plug is fixed on the screw thread inwall of valve body oil outlet; One-way valve seat is arranged on valve inner; Between one-way valve seat and screw plug, be provided with return spring; The internal orifice of valve body filler opening is shaped as taper shape; Steel ball is arranged between one-way valve seat and filler opening.One-way valve seat is conical surface by the one side of filler opening.On valve body outer side surface, be fixed with seal ring.The bottom center of screw plug is provided with through hole.
The utility model working principle is: utilize return spring to promote one-way valve seat and compress steel ball, in the time that high-pressure shocking wave forms, hydraulic oil is washed steel ball open and entered valve body, flows out, thereby reach the pressure of laying down gearbox oil product by steel ball and conical surface gap.In the time that oil pressure drops to certain value, return spring active force is greater than hydraulic pressure and steel ball is taken a seat closes pressure-relief valve, has guaranteed so quick response and the keying of product.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a gearbox high voltage protective valve, is characterized in that: include valve body, screw plug, return spring, one-way valve seat and steel ball; Described valve inner hollow, valve body is provided with the oil outlet of filler opening and threaded inwall; Described screw plug is fixed on the screw thread inwall of valve body oil outlet; Described one-way valve seat is arranged on valve inner; Between described one-way valve seat and screw plug, be provided with return spring; The internal orifice of described valve body filler opening is shaped as taper shape; Described steel ball is arranged between one-way valve seat and filler opening.
2. a kind of gearbox high voltage protective valve according to claim 1, is characterized in that: described one-way valve seat is conical surface by the one side of filler opening.
3. a kind of gearbox high voltage protective valve according to claim 1 and 2, is characterized in that: on described valve body outer side surface, be fixed with seal ring.
4. a kind of gearbox high voltage protective valve according to claim 1 and 2, is characterized in that: the bottom center of described screw plug is provided with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320831521.2U CN203627956U (en) | 2013-12-17 | 2013-12-17 | High pressure protection valve for gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320831521.2U CN203627956U (en) | 2013-12-17 | 2013-12-17 | High pressure protection valve for gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627956U true CN203627956U (en) | 2014-06-04 |
Family
ID=50814436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320831521.2U Expired - Lifetime CN203627956U (en) | 2013-12-17 | 2013-12-17 | High pressure protection valve for gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627956U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455596A (en) * | 2014-11-27 | 2015-03-25 | 中联重机股份有限公司 | Axle gear box pressure relief device and excavator axle provided with same |
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly mechanism |
| WO2020258590A1 (en) * | 2019-06-27 | 2020-12-30 | 无锡明诚汽车部件有限公司 | Respiratory pressure valve and apparatus having respiratory pressure valve |
-
2013
- 2013-12-17 CN CN201320831521.2U patent/CN203627956U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455596A (en) * | 2014-11-27 | 2015-03-25 | 中联重机股份有限公司 | Axle gear box pressure relief device and excavator axle provided with same |
| WO2020258590A1 (en) * | 2019-06-27 | 2020-12-30 | 无锡明诚汽车部件有限公司 | Respiratory pressure valve and apparatus having respiratory pressure valve |
| CN110332345A (en) * | 2019-07-25 | 2019-10-15 | 无锡明诚汽车部件有限公司 | Motor water-proof valve assembly 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: 20140604 |
|
| CX01 | Expiry of patent term |