CN202483871U - Safety valve arranged in gear oil pump - Google Patents
Safety valve arranged in gear oil pump Download PDFInfo
- Publication number
- CN202483871U CN202483871U CN2012200882041U CN201220088204U CN202483871U CN 202483871 U CN202483871 U CN 202483871U CN 2012200882041 U CN2012200882041 U CN 2012200882041U CN 201220088204 U CN201220088204 U CN 201220088204U CN 202483871 U CN202483871 U CN 202483871U
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- CN
- China
- Prior art keywords
- valve
- oil pump
- gear oil
- safety valve
- pump
- 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 safety valve arranged in a gear oil pump, belonging to the technical field of a pressure valve, in particular to a valve which is arranged in the gear oil pump and is used for preventing an oiling gun from automatically closing. The safety valve comprises a valve rod (4) and a valve seat (5), and is characterized in that the whole safety valve is arranged in a pump body (1) of the gear oil pump; a backflow hole (3) provided with a tapered surface is arranged on the inner wall of the pump body (1) between an oil outlet hole (2) and an oil inlet hole (7) of the gear oil pump; one end of the valve rod (4) leans against the backflow hole (3) so as to form seal, and the other end of the valve rod (4) is arranged on the valve seat (5) by a pressure spring (6); and the valve seat (5) is fixedly arranged on the inner wall of the pump body (1) at one side of the oil inlet hole (7). The safety valve has the advantages of being simple in structure, safe and reliable, convenient in installation, good in sealing effect, economical, practical and the like; furthermore, a hydraulic system is guaranteed to be safe on the basis of reducing the manufacturing cost, and the pressure at an outlet can be effectively controlled.
Description
Technical field
The inner safety valve of installing of a kind of gear oil pump belongs to the pressure valve technical field, the valve that being used to of being specifically related to install and use in a kind of gear oil pump prevents that nozzle is self-closing.
Background technique
In order to guarantee the safety of hydraulic system; In order to control hydraulic line pressure; Usually can on the oil pump export pipeline, safety valve be installed, be used to control the outlet pressure of oil pump, as when using nozzle; Can prevent the self-closing phenomenon that nozzle in use produces because of overpressure, cause cisco unity malfunction.
Moreover, in setting safety valves, need take back oil pipe at the oil pump first line of a couplet usually; Oil pump relief valve normally is installed in the pump body outside; So not only strengthened the boundary dimension of oil pump self, and the common more complicated of the structure of safety valve, amount of finish are many, have increased the manufacture cost of equipment virtually; Also make the oil circuit of hydraulic system become complicated, operate in use and inconvenience.
Summary of the invention
The technical problem that the utility model will solve is: overcome the deficiency of existing technology, provide a kind of simple in structure, be installed in the inner safety valve of installing of the little gear oil pump in oil pump inside, amount of finish.
The utility model solves the technological scheme that its technical problem adopted: the inner safety valve of installing of this kind gear oil pump; Comprise valve rod and valve seat; It is characterized in that: the safety valve integral installation is inner at the pump housing of gear oil pump, on the oil outlet of gear oil pump and the pump housing inwall between the oil inlet hole, offers the return port of a band conical surface, and valve rod one end withstands on and forms sealing on the return port; The other end is installed on the valve seat through stage clip, and valve seat is fixedly mounted on the pump housing inwall of oil inlet hole one side.Simple in structure, easy for installation, amount of finish is few, has reduced manufacture cost.
One end of described valve rod and return port contact is corresponding is arranged to taper.Guarantee when valve rod is in closed condition, can keep good sealing effect.
Described oil outlet and oil inlet hole place at grade, it is concentric that the endoporus of return port and valve seat keeps in the horizontal direction.Return port and valve seat are installed with one heart, further guarantee the sealing effect that valve rod is good.
Compared with prior art, the beneficial effect that the utility model had is:
1, simple in structure, easy for installation: be installed in pump housing inside, be arranged between oil inlet hole and the oil outlet, reduced amount of finish, the less size of the pump housing self has been simplified the oil circuit of hydraulic system, has reduced manufacture cost.
2, good sealing effect, safe and reliable: adopt cone seal between valve rod and the return port, and return port and valve seat maintenance installation with one heart, guaranteed the sealing effect that valve rod is good; Pass through opened by pressure; Close through spring force, safe and reliable, operation is simple; Be convenient to control outlet pressure, guarantee security of system.
Description of drawings
Fig. 1 is that the installation of the utility model structure on the pump housing concerns schematic representation.
Wherein: 1, the pump housing 2, oil outlet 3, return port 4, valve rod 5, valve seat 6, stage clip 7, oil inlet hole.
Fig. 1 is the most preferred embodiment of the utility model, further specifies below in conjunction with 1 pair of the utility model of accompanying drawing:
Embodiment
With reference to accompanying drawing 1:
The inner safety valve of installing of this kind gear oil pump; Mainly form by valve rod 4, valve seat 5 and stage clip 6; The safety valve integral installation is in the pump housing 1 inside of gear oil pump; On the oil outlet 2 of gear oil pump and the pump housing 1 inwall between the oil inlet hole 7, offer the return port 3 of a band conical surface, an end of valve rod 4 and return port 3 contacts is corresponding is arranged to taper, and taper one end withstands on the return port 3 and return port 3 formation cone seals; The other end is installed on the valve seat 5 through stage clip 6, and valve seat 5 is fixedly mounted on the pump housing 1 inwall of oil inlet hole 7 one sides.Oil outlet 2 and oil inlet hole 7 places at grade, return port 3 keeps concentric installation in the horizontal direction with the endoporus of valve seat 5.
Working procedure is following:
In order to control hydraulic line pressure; This safety valve is installed between the export pipeline of oil pump and inlet ductwork; Between oil outlet 2 and oil inlet hole 7, process the return port 3 of the band conical surface, valve rod 4 inserts in the endoporus that is fixed on the valve seat 5 on the pump housing 1 and guarantees valve rod 4 and return port 3 concentric installations.
The utility model is in when work, owing between valve rod 4 and valve seat 5, stage clip 6 is housed, tightly is pressed on the conical surface of return port 3 at the tapered end face of the effect lower valve rod 4 of the spring force of stage clip 6, forms cone seal, and return port 3 at this moment is in closed condition.
When the pressure at oil outlet 2 places exceeds the working pressure of oil pump self setting, the pressure extrusion valve rod 4 of oil outlet 2 one sides, valve rod 4 is at the effect lower compression stage clip 6 of oil pressure; Stage clip 6 drives valve rod 4 one ends to be separated with return port 3; Oil outlet 2 is communicated with oil inlet hole 7, and the high pressure oil of oil outlet 2 flows back in the in-line through oil inlet hole 7, keeps the outlet pressure of oil circuit to be no more than working pressure with this; To realize easily controlling outlet pressure, guarantee security of system.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technological scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technological scheme according to the technical spirit of the utility model.
Claims (3)
1. the inner safety valve of installing of a gear oil pump; Comprise valve rod (4) and valve seat (5); It is characterized in that: the safety valve integral installation is offered the return port (3) of a band conical surface in the pump housing (1) inside of gear oil pump on the oil outlet (2) of gear oil pump and the pump housing (1) inwall between the oil inlet hole (7), valve rod (4) one ends withstand on return port (3) and go up the formation sealing; The other end is installed on the valve seat (5) through stage clip (6), and valve seat (5) is fixedly mounted on the pump housing (1) inwall of oil inlet hole (7) one sides.
2. the inner safety valve of installing of a kind of gear oil pump according to claim 1 is characterized in that: the end that described valve rod (4) and return port (3) contact is corresponding is arranged to taper.
3. the inner safety valve of installing of a kind of gear oil pump according to claim 1, it is characterized in that: described oil outlet (2) and oil inlet hole (7) are located at grade, and the endoporus of return port (3) and valve seat (5) keeps concentric in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200882041U CN202483871U (en) | 2012-03-09 | 2012-03-09 | Safety valve arranged in gear oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200882041U CN202483871U (en) | 2012-03-09 | 2012-03-09 | Safety valve arranged in gear oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483871U true CN202483871U (en) | 2012-10-10 |
Family
ID=46958297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200882041U Expired - Fee Related CN202483871U (en) | 2012-03-09 | 2012-03-09 | Safety valve arranged in gear oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483871U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956688A (en) * | 2017-12-13 | 2018-04-24 | 杭州电子科技大学 | One kind has axial end face face canned rotor molded line positive displacement pump |
-
2012
- 2012-03-09 CN CN2012200882041U patent/CN202483871U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956688A (en) * | 2017-12-13 | 2018-04-24 | 杭州电子科技大学 | One kind has axial end face face canned rotor molded line positive displacement pump |
| CN107956688B (en) * | 2017-12-13 | 2024-04-16 | 杭州电子科技大学 | Axial end face seal rotor molded line displacement pump |
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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: 20121010 Termination date: 20150309 |
|
| EXPY | Termination of patent right or utility model |