CN205896656U - Oil pump of relief valve is equipped with - Google Patents
Oil pump of relief valve is equipped with Download PDFInfo
- Publication number
- CN205896656U CN205896656U CN201620892198.3U CN201620892198U CN205896656U CN 205896656 U CN205896656 U CN 205896656U CN 201620892198 U CN201620892198 U CN 201620892198U CN 205896656 U CN205896656 U CN 205896656U
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- hole
- steel ball
- valve
- oil
- valve opening
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Abstract
The utility model provides an oil pump of relief valve is equipped with, including the pump body, pump cover, play oil duct and safety valve assembly, safety valve assembly includes plug screw, spring, steel ball, valve body, valve body and pump cover casting shaping structure as an organic whole, be equipped with the shoulder hole on the valve body, shoulder hole outside -in is screw hole, valve opening, taper hole in proper order, crosses the oilhole, the internal diameter of valve opening was greater than the internal diameter of oilhole, the taper hole is located the valve opening and crosses the junction of oilhole, steel ball and spring mounting are in in the valve opening, the plug screw is installed in the screw hole, the spring is located between plug screw and the steel ball and provides pretension pressure, makes steel ball and taper hole inner wall contact cooperation form sealed face, it links to each other to cross an oilhole and an oil duct, the position that the valve body is close to the taper hole is equipped with two drain taps. Cast fashioned structure because safety valve body adopts with pump cover an organic whole, the handling ease goes out longer valve opening length, makes the valve opening can install the spring that the drift is longer.
Description
Technical field
The utility model is related to a kind of engine lubrication system part, limited but protect again particularly to a kind of axial space
The huge discharge lubricating oil pump of card safety valve draining ability.
Background technology
Existing huge discharge lubricating oil pump is arranged in the machine oil shell below engine crankcase, and lubricating oil pump is in the pump of axial direction
Lid side is provided with crankshaft counter balance, interferes in order to avoid producing with crankshaft counter balance, and the safety valve being arranged on pump cover side cannot set
Count long.But thus can produce another question: due to the limited length of safety valve, in order to ensure Opening pressure
Under the premise of the drift of spring must be shortened, lead to the compression travel of spring to shorten, make to open between steel ball and valve body taper hole
The drainage area opening is limited, thus leading to the draining scarce capacity of safety valve, in cold start-up, engine oil viscosity is big, machine for engine
Oil pressure is high, and the safety valve of draining scarce capacity cannot control the engine oil pressure of lubricating oil pump during cold start-up in actual demand model
Enclose, too high engine oil pressure can lead to oil leak at engine sealing, or even damage engine.
Utility model content
The technical problems to be solved in the utility model is to provide one kind to be both avoided that axial direction was interfered with crankshaft counter balance,
Can guarantee that safety valve has the huge discharge lubricating oil pump of enough draining abilities again.
In order to solve above-mentioned technical problem, the utility model adopts the following technical scheme that a kind of machine oil equipped with safety valve
Pump, including the pump housing, pump cover, oil road and safety valve complement, described safety valve complement includes plug screw, spring, steel ball, valve body, institute
State valve body and be integrated casting structure with pump cover, described valve body is provided with shoulder hole, and described shoulder hole ecto-entad is followed successively by
Screwed hole, valve opening, taper hole, oil-through hole, the internal diameter of described valve opening is more than the internal diameter of oil-through hole, described taper hole be located at valve opening with excessively oily
The junction in hole；Described steel ball and spring is arranged in described valve opening, and described plug screw is arranged in screwed hole, and described spring is located at
Between plug screw and steel ball and provide preload pressure, steel ball and taper hole contact internal walls are made to cooperatively form sealing surface；Described oil-through hole with
Oil road is connected；Described valve body is provided with two drain taps near the position of taper hole.
In technique scheme, because valve body of safety valve is using the structure with pump cover integrally casting shaping, compared to removable
The safety valve complement unloading, the valve body of integrally casting shaping with dismountable safety valve complement equal length under can process more
Long valve opening length, valve opening can be installed the longer spring of drift such that it is able to make spring-compressed stroke longer, increase
The drainage area opened between steel ball and taper hole, improves the draining ability of safety valve, when steel ball compression spring, steel ball and taper hole
Between sealing surface open, draining space that the hydraulic oil in oil road is opened by oil-through hole, steel ball and taper hole, drain tap stream
Return in machine oil shell it is ensured that engine in cold start-up can draining to greatest extent, reduce engine oil pressure during cold start-up, effectively
Control cold start-up when engine oil pressure in the range of actual demand, it is to avoid engine oil pressure is too high to lead to leakage at engine sealing
Oil, or even damage engine.
Further, the quantity of described safety valve complement is two.Safety can be improved to a greater extent using double safety valve
Valve draining ability, even if one of safety valve breaks down another can also normal work, double safety valve structure improves
The reliability of safety valve work, decreases because safety valve fault leads to the too high phenomenon of engine oil pressure during engine cold-start.
Brief description
Fig. 1 is the overall structure diagram of the utility model embodiment；
Fig. 2 is the structural representation of double safety valve assembly in the utility model embodiment；
Fig. 3 is the structural representation of valve body in the utility model embodiment.
Reference is:
1 pump housing, 2 pump cover 3 plug screw
4 spring, 5 steel ball 21 screwed hole
22 valve opening, 23 oil leak hole 24 taper hole
25 oil-through hole, 26 valve body 27 oil road.
Specific embodiment
For the ease of the understanding of those skilled in the art, the utility model is made further with accompanying drawing with reference to embodiment
Explanation, the content that embodiment refers to is not to restriction of the present utility model.
It is to be understood that term " first ", " second " are only used for describing purpose in description of the present utility model, and
It is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.In the utility model
Description in, " multiple " are meant that two or more, unless otherwise expressly limited specifically.Retouch of the present utility model
In stating, it should be noted that unless otherwise prescribed and limit, should be interpreted broadly term " installation ", " being connected ", " connection ", example
As being mechanical connection or the connection of electrical connection or two element internals, can be to be joined directly together it is also possible to lead to
Cross intermediary to be indirectly connected to, for the ordinary skill in the art, described term can be understood as the case may be
Concrete meaning.
As shown in Figures 1 to 3, preferred embodiment of the present utility model is: a kind of lubricating oil pump equipped with safety valve, including the pump housing
1st, pump cover 2, oil road 27 and safety valve complement, described safety valve complement includes plug screw 3, spring 4, steel ball 5, valve body 26, described
Valve body 26 and pump cover 2 are integrated casting structure, and described valve body 26 is provided with shoulder hole, and described shoulder hole ecto-entad is successively
For screwed hole 21, valve opening 22, taper hole 24, oil-through hole 25, the internal diameter of described valve opening 22 is more than the internal diameter of oil-through hole 25, described taper hole
24 junctions being located at valve opening 22 and oil-through hole 25；Described steel ball 5 and spring 4 are arranged in described valve opening 22, and described plug screw 3 is pacified
It is contained in screwed hole 21, described spring 4 is located between plug screw 3 and steel ball 5 and provides preload pressure, make in steel ball 5 and taper hole 24
Wall is engaged formation sealing surface；Described oil-through hole 25 is connected with oil road 27；Described valve body 26 sets near the position of taper hole 24
There are two drain taps 23；The quantity of described safety valve complement is two.
Because valve body of safety valve 26 is using the structure with pump cover 2 integrally casting shaping, total compared to dismountable safety valve
Become, the valve body 26 of integrally casting shaping with dismountable safety valve complement equal length under can to process longer valve opening long
Degree, valve opening 22 can be installed the longer spring of drift 4 such that it is able to make spring 4 compression travel longer, increase steel ball 5
The drainage area opened and taper hole 24 between, improves the draining ability of safety valve, when steel ball 5 compression spring 4, steel ball 5 and cone
Sealing surface between hole 24 is opened, the hydraulic oil in oil road pass through draining space that oil-through hole, steel ball 5 opened with taper hole 24,
Drain tap flow back in machine oil shell it is ensured that engine in cold start-up can draining to greatest extent, reduce machine oil during cold start-up
Pressure, when effectively controlling cold start-up, engine oil pressure is in the range of actual demand, it is to avoid engine oil pressure is too high to lead to engine
Oil leak at sealing, or even damage engine.
Safety valve draining ability can be improved to a greater extent using double safety valve, even if one of safety valve breaks down
Another can also normal work, double safety valve structure improve safety valve work reliability, decrease because safety valve therefore
Barrier leads to the too high phenomenon of engine oil pressure during engine cold-start.
Above-described embodiment is the utility model preferably implementation, and in addition, the utility model can also other side
Formula is realized, and on the premise of conceiving without departing from the technical program, any obvious replacement is all in protection model of the present utility model
Within enclosing.
In order to allow those of ordinary skill in the art more easily understand the utility model with respect to prior art improvement it
Place, some accompanying drawings of the present utility model and description have been simplified, and for the sake of clarity, present specification is omitted one
Other elements a bit, it is of the present utility model interior that those of ordinary skill in the art should be aware that the element that these omit also may make up
Hold.
Claims (2)
1. a kind of lubricating oil pump equipped with safety valve, including the pump housing (1), pump cover (2), oil road (27) and safety valve complement, described
Safety valve complement includes plug screw (3), spring (4), steel ball (5), valve body (26), it is characterized in that: described valve body (26) and pump cover (2)
It is integrated casting structure, described valve body (26) is provided with shoulder hole, and described shoulder hole ecto-entad is followed successively by screwed hole
(21), valve opening (22), taper hole (24), oil-through hole (25), the internal diameter of described valve opening (22) is more than the internal diameter of oil-through hole (25), described
Taper hole (24) is located at the junction of valve opening (22) and oil-through hole (25)；Described steel ball (5) and spring (4) are arranged on described valve opening
(22) in, described plug screw (3) is arranged in screwed hole (21), and described spring (4) is located between plug screw (3) and steel ball (5) and carries
For preload pressure, steel ball (5) and taper hole (24) contact internal walls are made to cooperatively form sealing surface；Described oil-through hole (25) and oil road
(27) it is connected；Described valve body (26) is provided with two drain taps (23) near the position of taper hole (24).
2. the lubricating oil pump equipped with safety valve according to claim 1, is characterized in that: the quantity of described safety valve complement is two
Individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892198.3U CN205896656U (en) | 2016-08-17 | 2016-08-17 | Oil pump of relief valve is equipped with |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620892198.3U CN205896656U (en) | 2016-08-17 | 2016-08-17 | Oil pump of relief valve is equipped with |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205896656U true CN205896656U (en) | 2017-01-18 |
Family
ID=57779419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620892198.3U Active CN205896656U (en) | 2016-08-17 | 2016-08-17 | Oil pump of relief valve is equipped with |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205896656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051440A (en) * | 2016-08-17 | 2016-10-26 | 湖南机油泵股份有限公司 | Engine oil pump with safety valve |
-
2016
- 2016-08-17 CN CN201620892198.3U patent/CN205896656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051440A (en) * | 2016-08-17 | 2016-10-26 | 湖南机油泵股份有限公司 | Engine oil pump with safety valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |