CN208330718U - High leakproofness gear oil pump - Google Patents
High leakproofness gear oil pump Download PDFInfo
- Publication number
- CN208330718U CN208330718U CN201820942218.2U CN201820942218U CN208330718U CN 208330718 U CN208330718 U CN 208330718U CN 201820942218 U CN201820942218 U CN 201820942218U CN 208330718 U CN208330718 U CN 208330718U
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- CN
- China
- Prior art keywords
- oil
- gear
- hole
- driving gear
- main body
- 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
High leakproofness gear oil pump, including main body lead in axis of the body and form oil pumping chamber, and in the oil pumping chamber side by side and engagement is equipped with driving gear and driven gear, the rotation axis of the driving gear is longer than the driven gear；The opposite two sides of the main body are also provided with pump oil hole, and the pump oil hole is communicated with the oil pumping chamber；The pump oil hole is coplanar with the driving gear rotational plane；Beneficial effect is: structure is more reasonable, easily facilitates maintenance；Good seal performance；Side plate is easier to replace, and reduces the practical cost of equipment.
Description
Technical field
The utility model belongs to oil pump field, more particularly, to a kind of high pressure gear oil pump.
Background technique
Gear oil pump is suitable for conveying the various liquid or pressure oil for having lubricity, is transported extensively in many mechanical systems
With.Traditional gear oil pump including the pump housing, is respectively arranged on the front cover and rear cover at pump housing both ends, and is set to and pumps intracorporal active
Gear and driven gear, driving gear drives driven gear rotation to gear oil pump in the running, and oil liquid enters the pump housing from fuel feed hole
It is interior and from oil outlet be discharged.However, simply using pressure difference carry out pump oil, when oil body viscosity is larger convey difficulty will increase
Add.Existing gear is fixedly connected with the rotating shaft, cannot more gear changing as needed.
Existing oil pump generally uses monolithic devices shell, rear cover is directly arranged to an entirety with main body, to prevent
Oil is revealed between rear cover and main body, although this mode can improve oil preventing performance to a certain extent, so that the dimension of oil pump
Shield cost improves.When to need to safeguard close to rear cover position to oil pump inside, it is necessary to dismantle entire main body.
Although its poor sealing performance be easy to cause oil body to let out alternatively, existing oil pump uses split-type design
Dew is typically all that a sealing ring is simply arranged in connecting portion；It is easy to aging due to the characteristic of sealing ring material, together
Sample increases oil pump maintenance cost.
Utility model content
To solve the above-mentioned problems, the utility model adopts the following technical solution:
High leakproofness gear oil pump, including main body lead in axis of the body and form oil pumping chamber, in the oil pumping chamber side by side
And engagement is equipped with driving gear and driven gear, the rotation axis of the driving gear is longer than the driven gear；The main body phase
Pair two sides be also provided with pump oil hole, the pump oil hole is communicated with the oil pumping chamber；The pump oil hole and the driving tooth rotate
Dynamic co-planar；
The driving gear and driven gear with the rotation axis detachable connection；
The rotation axis both ends of the driving gear and driven gear are arranged with side plate；Two rotation holes of the side plate point
It is not matched with the rotation axis of the driving gear and driven gear；The side plate is located at the both ends of the oil pumping chamber, the side plate
Outer diameter matches with the oil pumping chamber internal diameter；
Two side plates are equipped with ear type sealing ring, and the end face and the bulk end far from one end of the driving gear
Face flushes；
The main body left end is connected with front cover, and right end is connected with rear cover, between the main body and the front cover and rear cover
Equipped with O-ring seal；The front cover is also provided with drive hole；The rotation axis left end of the driving gear passes through the drive hole；
The front cover right side and the rear cover left side offer the O-shaped seal groove to match with O-ring seal, and
With the matched ear type seal groove of ear type sealing ring, the ear type seal groove is located on the inside of the O-shaped seal groove.
Preferably, the left and right end face of the main body offers the first pin hole and the second pin hole respectively；The front cover right end
Face offer with the matched front cover pin hole of first pin hole, the rear cover left side is offered to be matched with the second pin hole
Rear cover pin hole.
Preferably, stating side plate is 8 fonts, two rotation hole is mutually indepedent, two rotation hole distance of center circle and mutually
The driving gear and driven gear distance of center circle of engagement match.
Preferably, the line in two pump oil holes passes through the clearance space of two rotation axis.
Preferably, the plane that the line in two pump oil holes is constituted perpendicular to two rotation axis.
Preferably, the interior loop-shaped of the ear type sealing ring and the shape of the rotation hole match, outer loop-shaped with
The side plate outer edge shape matching.
The beneficial effects of the utility model are:
1. structure is more reasonable, maintenance is easily facilitated, front and rear covers are set, can according to need selectivity disassembly side, so
Inside is repaired afterwards；
2. good seal performance；
3. side plate is easier to replace, the practical cost of equipment is reduced；
4. pumping ability is more preferable, by the gear model in replacement rotation axis, reaches and do not carry out pump oil using the pressure difference of oil
Operation, but directly pass through the active force of gear mesh oil.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram of the utility model.
In figure: 10 front covers, 11 drive holes, 12O type seal groove, 13 ear type seal grooves, 20 side plates, 21 ear type sealing rings, 22O
Type sealing ring, 30 driving gears, 31 driven gears, 40 main bodys, 41 oil pumping chambers, 42 pump oil holes, 50 rear covers.
Specific embodiment
The utility model is further described with reference to the accompanying drawing:
High leakproofness gear oil pump, including main body 40 lead in 40 axial direction of main body and form oil pumping chamber 41, in oil pumping chamber 41 side by side
And engagement is equipped with driving gear 30 and driven gear 31, the rotation axis of driving gear 30 is longer than driven gear 31；Main body 40 is opposite
Two sides be also provided with pump oil hole 42, pump oil hole 42 is communicated with oil pumping chamber 41；Pump oil hole 42 and 30 rotational plane of driving gear are total
Face.When driving gear 30 and driven gear 31 rotate, the latch on gear plays used in transmission oil body, and oil body is easier to
It is pumped out out of oil pumping chamber 41, to leave the pump housing from pump oil hole 42.
Depth of groove between 31 latch of driving gear 30 and driven gear is big, when the two rotation, directly passes through latch
Oil is pushed.Similar to the working principle of transmission waterwheel water delivery.
Direct geared pump oil, and non-used pressure difference can be used in the application.The line in two pump oil holes 42 passes through two rotations
The clearance space of axis.The plane that the line in two pump oil holes 42 is constituted perpendicular to two rotation axis.Therefore, it is necessary to by two pump oils
The position in hole 42 is opposite with two gear connection positions, it is possible thereby to obtain bigger motive force.
The rotation axis both ends of driving gear 30 and driven gear 31 are arranged with side plate 20；Two rotation holes of side plate 20 point
It is not matched with the rotation axis of driving gear 30 and driven gear 31；Side plate 20 is located at the both ends of oil pumping chamber 41,20 outer diameter of side plate with
41 internal diameter of oil pumping chamber matches.
Side plate 20 is 8 fonts, two rotation hole is mutually indepedent, two rotation hole distance of center circle and intermeshing driving tooth
Wheel 30 and 31 distance of center circle of driven gear match.
The rotation axis of driving gear 30 and driven gear 31 is matched with the rotation hole of side plate 20, and rotation axis can be in rotation hole
Rotation, while gap is small between the two can be realized the effect tentatively sealed to oil body.Side plate 20 is arranged in oil pumping chamber 41 simultaneously
Both ends, two opposite clearance spaces of side plate 20 form pump oil space, for being rotated to driving gear 30 and driven gear 31,
It pressurizes to oil body.
Two side plates 20 are equipped with ear type sealing ring 21 far from one end of driving gear 40, and the end face and 40 end face of main body are neat
It is flat；The interior loop-shaped of ear type sealing ring 21 and the shape of rotation hole match, outer loop-shaped and 20 outer edge shape of side plate
Match.As can be known from Fig. 1, the shape enclosed on the outside of ear type sealing ring 21 is matched with 20 outer edge of side plate, and outer ring is for blocking side plate
Gap between 20 and the pump oil cavity wall of main body 40；The shape of 21 inner ring of ear type sealing ring and the edge of two rotation holes
Match, for blocking the gap between rotation axis and rotation hole.Meanwhile ectonexine is not completely by 20 edge of rotation hole and side plate
Covering, but cover a part.
40 left end of main body is connected with front cover 10, and right end is connected with rear cover 50, between main body 40 and front cover 10 and rear cover 50
Equipped with O-ring seal 22；Front cover 10 is also provided with drive hole 11；The rotation axis left end of driving gear 30 passes through drive hole 11.
10 right side of front cover and 50 left side of rear cover offer the O-shaped seal groove 12 to match with O-ring seal 22, and
With the matched ear type seal groove 13 of ear type sealing ring 21, ear type seal groove 13 is located at O-shaped 12 inside of seal groove.
The design of O-shaped seal groove 12 and ear type sealing ring 21 is enabling sealing ring so that sealing ring is limited
It preferably is fixed on a position, plays better seal effect.O-ring seal 22 is around setting outside 41 port of oil pumping chamber
Side forms another layer of sealant on the outside.
Meanwhile O-shaped seal groove 12 and ear type sealing ring 21 being provided on front cover 10 and rear cover 50, so that replacement side plate 20
When it is more convenient.If a possibility that seal groove is provided on side plate 20, increases its oil leak to a certain degree, meanwhile, replace side plate
It also needs to dismantle sealing ring when 20, increases process.
The left and right end face of main body 40 offers the first pin hole and the second pin hole respectively；10 right side of front cover offer with
The matched front cover pin hole of first pin hole, 50 left side of rear cover offer and the matched rear cover pin hole of the second pin hole.So
After be successively arranged pin, the outer diameter of pin is matched with each pin hole internal diameter, will not be shaken in pin hole, such as 10 phase of front cover
Answer when being connected in main body 40, the two does not have radial displacement.
It is arranged since the internal diameter of screw hole is generally bigger, in motor rotation process, equipment meeting radial wobble, by setting
Set pin front cover and main body is radially fixed securely.
A kind of working method of the utility model are as follows:
Equipment is assembled in a manner described, 30 rotation axis of driving gear is then connected across the one of front cover 10 by motor
End, then motor drives rotation axis rotation, which drives driving gear 30 to rotate, and driving gear 30 drives driven gear 31
Rotation, for example driving gear 30 rotates clockwise, then driven gear 31 is driven to rotate counterclockwise, oil body is from the pump oil hole of second side
42 enter in oil pumping chamber 41, are then pressurized by gear drive, export from first pump oil hole 42.
Or, replacement driving gear 30 and driven gear 31, reduce driving gear 30 and 31 latch depth of driven gear；The
The separation of two sides, two gear, so that second side cavity indoor pressure reduces, oily intake chamber, then the first side gear engagement is squeezed, will
Oil body is squeezed out from chamber.
Since the oil pressure of oil pumping chamber 41 increases, must have the tendency that leaving from each gap, however, rotation axis and side
Gap between gap between plate 20 and side plate 20 and 41 inner wall of oil pumping chamber is sealed by ear type sealing ring 21.As shown in Figure 1
Ear type sealing ring 21, after being mounted in ear type seal groove 13, opening both ends can be end to end, to form approximation
In the sealing ring of annular.It is for the ease of plant maintenance without being set to seperated double-layer structure.
Above exist using the statement for being similar to pin hole substitution all types pin hole, is not had for the ease of statement
Other standby particular meanings.Meanwhile " up and down " described herein is reference with orientation in Fig. 1, is for convenient for table
It states, does not have other particular meanings.
In addition, the utility model is not limited to above embodiment, as long as it reaches this reality with essentially identical means
With novel technical effect, the protection scope of the utility model all should belong to.
Claims (5)
1. high leakproofness gear oil pump, it is characterised in that: including main body (40), lead in main body (40) axial direction and form oil pumping chamber
(41), arranged side by side in the oil pumping chamber (41) and engagement is equipped with driving gear (30) and driven gear (31), the driving gear
(30) rotation axis is longer than the rotation axis of the driven gear (31)；The opposite two sides of the main body (40) are also provided with pump oil hole
(42), the pump oil hole (42) communicates with the oil pumping chamber (41)；The pump oil hole (42) and the driving gear (30) rotate
Co-planar；
The driving gear (30) and driven gear (31) with the rotation axis detachable connection；
The rotation axis both ends of the driving gear (30) and driven gear (31) are arranged with side plate (20)；The side plate (20)
Two rotation holes are matched with the rotation axis of the driving gear (30) and driven gear (31) respectively；The side plate (20) is located at institute
The both ends of oil pumping chamber (41) are stated, side plate (20) outer diameter matches with the oil pumping chamber (41) internal diameter；
Two side plates (20) are equipped with ear type sealing ring (21) far from an end face of the driving gear (30), and the end face with
The end face of the main body (40)；
Main body (40) left end is connected with front cover (10), and right end is connected with rear cover (50), the main body (40) and the front cover
(10) it is equipped between rear cover (50) O-ring seal (22)；The front cover (10) is also provided with drive hole (11)；The active
The rotation axis left end of gear (30) passes through the drive hole (11)；
Front cover (10) right side and the rear cover (50) left side offer match with O-ring seal (22) it is O-shaped close
Sealing groove (12), and with the matched ear type seal groove (13) of ear type sealing ring (21), the ear type seal groove (13) is located at the O
On the inside of type seal groove (12)；
The interior loop-shaped of the ear type sealing ring (21) and the shape of the rotation hole match, outer loop-shaped and the side plate
(20) outer edge shape matches.
2. high leakproofness gear oil pump according to claim 1, it is characterised in that: the left and right end face of the main body (40) point
The first pin hole and the second pin hole are not offered；Front cover (10) right side offers matched with first pin hole
Front cover pin hole, rear cover (50) left side offer and the matched rear cover pin hole of the second pin hole.
3. high leakproofness gear oil pump according to claim 1, it is characterised in that: the side plate (20) be 8 fonts, two
A rotation hole is mutually indepedent, two rotation hole distance of center circle and intermeshing driving gear (30) and driven gear (31) circle
The heart is away from matching.
4. high leakproofness gear oil pump according to claim 1, it is characterised in that: the line of two pump oil holes (42)
Across the clearance space of two rotation axis.
5. high leakproofness gear oil pump according to claim 4, it is characterised in that: the line of two pump oil holes (42)
The plane constituted perpendicular to two rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942218.2U CN208330718U (en) | 2018-06-19 | 2018-06-19 | High leakproofness gear oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820942218.2U CN208330718U (en) | 2018-06-19 | 2018-06-19 | High leakproofness gear oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208330718U true CN208330718U (en) | 2019-01-04 |
Family
ID=64771843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820942218.2U Expired - Fee Related CN208330718U (en) | 2018-06-19 | 2018-06-19 | High leakproofness gear oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208330718U (en) |
-
2018
- 2018-06-19 CN CN201820942218.2U patent/CN208330718U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20190104 Termination date: 20200619 |