CN208294760U - A kind of float flux gear pump axle sleeve - Google Patents
A kind of float flux gear pump axle sleeve Download PDFInfo
- Publication number
- CN208294760U CN208294760U CN201820498079.9U CN201820498079U CN208294760U CN 208294760 U CN208294760 U CN 208294760U CN 201820498079 U CN201820498079 U CN 201820498079U CN 208294760 U CN208294760 U CN 208294760U
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- Prior art keywords
- oil
- axis hole
- gear
- axis
- sleeve body
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Abstract
The utility model discloses a kind of float flux gear pump axle sleeves to be provided with the oil groove that the end cap joint surface of the sleeve body is spirally extended to from the gear joint surface of the sleeve body on the hole wall of the axis hole including having the sleeve body there are two axis hole.It is 0.5mL/r~1.5mL/r gear pump that the utility model, which can be adapted for displacement range; the oil groove that the utility model is extended spirally by setting; it can effectively ensure that the rotation after pressure oil enters axle sleeve with gear shaft; more rapidly, tempered oil film is effectively formed to protect the hole wall of axis hole; oil liquid is still back to oil outlet after the hole wall circulation cooling of axis hole simultaneously, effectively reduces leakage, it is ensured that gear oil pump is in high pressure; volumetric efficiency under high temperature improves the service life of gear oil pump.
Description
Technical field
The utility model relates to gear pump fields, relate in particular to a kind of float flux gear pump axle sleeve.
Background technique
Axle sleeve is one of core component of gear pump, has very important influence to the performance of gear pump.Existing tooth
Wheel pump has the driving gear shaft and driven gear shaft that installation gear pump is respectively corresponded there are two axis hole, the hole wall of axis hole with axle sleeve
On be provided with oil groove from the gear joint surface linear extension of axle sleeve to the end cap joint surface of axle sleeve.
For float flux gear pump, because structure limits, DU bushing can not be installed in axis hole, it is above-mentioned under high-voltage high-speed
Oil groove is unable to satisfy requirement, and the hole wall of axis hole not enough can cause to wear because lubricating, radiating, to cause gear pump efficiency low, influences
Gear pump service life.
Utility model content
It is with long service life small the technical problem to be solved by the utility model is to provide a kind of lubrication, good heat dissipation effect
Displacement gear pump axle sleeve.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical solution: a kind of float flux gear pump axis
Set is provided on the hole wall of the axis hole from the gear joint surface of the sleeve body including having the sleeve body there are two axis hole
It is spirally extended to the oil groove on the end cap joint surface of the sleeve body.
Further, the oil groove extends spirally 1/8th circles.
Further, oil outlet side of the oil groove without departing from the sleeve body.
Further, the line of the axis of the starting point of the oil groove and the axis hole is located at the central axis of the axis hole
Outside and and the central axis of the axis hole be in 45 degree of angle, the line of the terminal of the oil groove and the axis of the axis hole and
The central axis of the axis hole is overlapped.
The beneficial effects of the utility model are embodied in:
It is 0.5mL/r~1.5mL/r gear pump that the utility model, which can be adapted for displacement range, and the utility model is by setting
The oil groove extended spirally is set, can effectively ensure that the rotation after pressure oil enters axle sleeve with gear shaft, more rapidly, effectively
Tempered oil film is formed to protect the hole wall of axis hole, while oil liquid is still back to oil outlet after the hole wall circulation cooling of axis hole, has
Effect reduces leakage, it is ensured that volumetric efficiency of the gear oil pump under high pressure, high temperature improves the service life of gear oil pump.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
The label of each component in attached drawing are as follows: 1 sleeve body, 11 axis holes, 12 oil grooves, the gear joint surface of m sleeve body, n
The end cap joint surface of sleeve body, L axis hole central axis.
Specific embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.
Referring to Fig. 1 to Fig. 3.
The utility model float flux gear pump axle sleeve, including having the sleeve body 1 there are two axis hole 11, the axis hole 11
Hole wall on be provided with the end cap joint surface n that the sleeve body 1 is spirally extended to from the gear joint surface m of the sleeve body 1
Oil groove 12.
It is 0.5mL/r~1.5mL/r gear pump that the utility model, which can be adapted for displacement range, and the utility model is by setting
The oil groove extended spirally is set, can effectively ensure that the rotation after pressure oil enters axle sleeve with gear shaft, more rapidly, effectively
Tempered oil film is formed to protect the hole wall of axis hole, while oil liquid is still back to oil outlet after the hole wall circulation cooling of axis hole, has
Effect reduces leakage, it is ensured that volumetric efficiency of the gear oil pump under high pressure, high temperature improves the service life of gear oil pump.
In one embodiment, the oil groove 12 extends spirally 1/8th circles.During implementing the utility model, hair
Bright people's discovery, is designed in this way, can increase significantly oil groove length and area, energy after high pressure oil enters under the premise of guaranteeing sealing
More rapidly, tempered oil film is effectively formed to protect the hole wall of axis hole, greatly improve the service life of gear pump.
In one embodiment, oil outlet side of the oil groove 12 without departing from the sleeve body 1.To cross the axis of two axis holes
The plane of line is interface, and the half of sleeve body is oil outlet side, the other half is inlet port side, as shown in Figure 2.Because discharge capacity compared with
Small, to reduce leakage, the cooperation in axis and hole is quite close, and the oil liquid of oil outlet side is easier to enter axis by oil groove because there is pressure
Hole, while also more can also can guarantee the abundance of lubrication axis hole oil liquid amount.
In one embodiment, the line of the axis of the starting point of the oil groove 12 and the axis hole 11 is located at the axis hole 11
The outside of central axis L is simultaneously in 45 degree of angle, the terminal and the axis of the oil groove 12 with the central axis L of the axis hole 11
The central axis L of the line of the axis in hole 11 and the axis hole 11 is overlapped.The central axis L of axis hole referred to the axis of axis hole simultaneously
Perpendicular to the line of the line of centres of two axis holes.During implementing the utility model, inventors have found that design in this way, i.e.,
Lubrication area can be increased, also can guarantee oil groove in band.
It should be understood that example as described herein and embodiment are not intended to limit the utility model only for explanation, this
Field technical staff can make various modifications or variation according to it, within the spirit and principle of the utility model, made
Any modification, equivalent substitution, improvement and etc. should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of float flux gear pump axle sleeve, including having the sleeve body there are two axis hole, it is characterised in that: the axis hole
The oil groove that the end cap joint surface of the sleeve body is spirally extended to from the gear joint surface of the sleeve body is provided on hole wall,
Oil outlet side of the oil groove without departing from the sleeve body.
2. float flux gear pump axle sleeve as described in claim 1, it is characterised in that: the oil groove extends spirally 1/8th
Circle.
3. float flux gear pump axle sleeve as claimed in claim 1 or 2, it is characterised in that: the starting point of the oil groove with it is described
The line of the axis of axis hole be located at the outside of the central axis of the axis hole and and the central axis of the axis hole be in 45 degree of folder
Angle, the terminal of the oil groove are overlapped with the central axis of the line of the axis of the axis hole and the axis hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820498079.9U CN208294760U (en) | 2018-04-09 | 2018-04-09 | A kind of float flux gear pump axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820498079.9U CN208294760U (en) | 2018-04-09 | 2018-04-09 | A kind of float flux gear pump axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294760U true CN208294760U (en) | 2018-12-28 |
Family
ID=64726139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820498079.9U Active CN208294760U (en) | 2018-04-09 | 2018-04-09 | A kind of float flux gear pump axle sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294760U (en) |
-
2018
- 2018-04-09 CN CN201820498079.9U patent/CN208294760U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |