CN203239560U - Oil supplementing pump of internal-meshing cycloid gear - Google Patents
Oil supplementing pump of internal-meshing cycloid gear Download PDFInfo
- Publication number
- CN203239560U CN203239560U CN 201320297164 CN201320297164U CN203239560U CN 203239560 U CN203239560 U CN 203239560U CN 201320297164 CN201320297164 CN 201320297164 CN 201320297164 U CN201320297164 U CN 201320297164U CN 203239560 U CN203239560 U CN 203239560U
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- gear
- oil pump
- internal
- oil
- pump case
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Abstract
The utility model provides an oil supplementing pump of an internal-meshing cycloid gear. The oil supplementing pump comprises an oil pump shell, an O-shaped sealing ring, a central gear, an inner-tooth gear ring, a cover plate, a shaft sleeve and a key, wherein the oil pump shell and the shaft sleeve are in clearance fit through the key; the central gear and the inner-tooth gear ring are meshed and are arranged in a groove of the oil pump shell; the inner-tooth gear ring and the oil pump shell are in clearance fit; the cover plate is fixedly arranged outside the groove to fix the central gear and the inner-tooth gear ring; the O-shaped sealing ring is arranged on an outer ring of the oil pump shell. The oil supplementing pump of the internal-meshing cycloid gear disclosed by the utility model is simple in structure, has no oil trapping phenomenon and does not leak oil.
Description
Technical field
The utility model relates to pump housing technical field, relates in particular to a kind of interior engagement cycloidal gear slippage pump.
Background technique
Interior engagement cycloidal gear slippage pump is installed on the master cylinder of ground pump station, and its effect is to provide the hydraulic oil with primary pressure to play the repairing effect to main pump.But the present most complex structure of existing interior engagement cycloidal gear slippage pump can leakage of oil.
The model utility content
The technical problem that (one) will solve
Problem to be solved in the utility model provides a kind of interior engagement cycloidal gear slippage pump, with the most complex structure of engagement cycloidal gear slippage pump in overcoming in the prior art, the defective of meeting leakage of oil.
(2) technological scheme
For solveing the technical problem, the utility model provides a kind of interior engagement cycloidal gear slippage pump, comprises oil pump case, O-ring seals, central gear, internal-gear circle, cover plate, axle sleeve and key; Described oil pump case and described axle sleeve are by described key Spielpassung; Described central gear and described internal-gear circle be intermeshing to be arranged in the groove of described oil pump case described internal-gear circle and described oil pump case Spielpassung; Described cover plate is fixedly installed on outside the described groove, and described central gear and described internal-gear circle are fixed; Described O-ring seals is arranged on the outer ring of described oil pump case.
Further, be provided with for the screw hole of installing on the described oil pump case.
Further, be provided with through hole on the described side wall of shaft sleeve.
Further, described oil pump case race diameter is 165mm, and thickness is 58mm.
(3) beneficial effect
Interior engagement cycloidal gear slippage pump of the present utility model, simple in structure, without entrap phenomenon, can leakage of oil.
Description of drawings
Fig. 1 is the half sectional view of a kind of interior engagement cycloidal gear slippage pump of the utility model;
Fig. 2 is the structural representation of a kind of interior engagement cycloidal gear slippage pump of the utility model;
Fig. 3 is the structural representation the during engagement of central gear and internal-gear circle in a kind of interior engagement cycloidal gear slippage pump of the utility model.
Among the figure, 1 is oil pump case, and 2 is O-ring seals, gear centered by 3, and 4 is the internal-gear circle, and 5 is cover plate, and 6 is axle sleeve, and 7 is key, and 8 is groove, and 9 is screw hole, and 10 is through hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1 to Figure 3, a kind of interior engagement cycloidal gear slippage pump of the present utility model comprises oil pump case 1, O-ring seals 2, central gear 3, internal-gear circle 4, cover plate 5, axle sleeve 6 and key 7; Above-mentioned oil pump case 1 and above-mentioned axle sleeve 6 are by above-mentioned key 7 Spielpassung; Above-mentioned central gear 3 and above-mentioned internal-gear circle 4 be intermeshing to be arranged in the groove 8 of above-mentioned oil pump case 1 above-mentioned internal-gear circle 4 and above-mentioned oil pump case 1 Spielpassung; Above-mentioned cover plate 5 is fixedly installed on outside the above-mentioned groove 8, and above-mentioned central gear 3 and above-mentioned internal-gear circle 4 is fixing; Above-mentioned O-ring seals 2 is arranged on the outer ring of above-mentioned oil pump case 1.
Above-mentioned oil pump case 1 upper end is provided with for the screw hole 9 of installing.Be provided with through hole 10 on above-mentioned axle sleeve 6 sidewalls.Above-mentioned through hole 10 be used for playing lubricated effect.Above-mentioned oil pump case 1 race diameter is 165mm, and thickness is 58mm.
Above-mentioned central gear 3 and above-mentioned internal-gear circle 4 tooth tops are shaped as circular arc.Above-mentioned central gear 3 is 0mm with above-mentioned internal-gear circle 4 tip clearances, and above-mentioned central gear 3 is 0.05-0.12mm with above-mentioned internal-gear circle 4 flank of tooth gaps.
Above-mentioned central gear 3 is designed to without tooth top clearance meshing form with above-mentioned internal-gear circle 4 engaging tooth shapes, and without entrap phenomenon, not only volumetric efficiency is high during work, avoids heating.Above-mentioned O-ring seals 2 plays the effect of sealing, prevents the leakage of oil that leaks.
Interior engagement cycloidal gear slippage pump of the present utility model, simple in structure, without entrap phenomenon, can leakage of oil.
In sum, above-mentioned mode of execution is not to be restricted mode of execution of the present utility model, and the modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation are all at technology category of the present utility model.
Claims (4)
1. engagement cycloidal gear slippage pump in a kind is characterized in that: comprise oil pump case (1), O-ring seals (2), central gear (3), internal-gear circle (4), cover plate (5), axle sleeve (6) and key (7); Described oil pump case (1) and described axle sleeve (6) are by described key (7) Spielpassung; Described central gear (3) and described internal-gear circle (4) be intermeshing to be arranged in the groove (8) of described oil pump case (1) described internal-gear circle (4) and described oil pump case (1) Spielpassung; Described cover plate (5) is fixedly installed on outside the described groove (8), and described central gear (3) and described internal-gear circle (4) is fixing; Described O-ring seals (2) is arranged on the outer ring of described oil pump case (1).
2. interior engagement cycloidal gear slippage pump according to claim 1 is characterized in that: be provided with for the screw hole (9) of installing on the described oil pump case (1).
3. interior engagement cycloidal gear slippage pump according to claim 1 and 2 is characterized in that: be provided with through hole (10) on described axle sleeve (6) sidewall.
4. interior engagement cycloidal gear slippage pump according to claim 3, it is characterized in that: described oil pump case (1) race diameter is 165mm, and thickness is 58mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297164 CN203239560U (en) | 2013-05-27 | 2013-05-27 | Oil supplementing pump of internal-meshing cycloid gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320297164 CN203239560U (en) | 2013-05-27 | 2013-05-27 | Oil supplementing pump of internal-meshing cycloid gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239560U true CN203239560U (en) | 2013-10-16 |
Family
ID=49316867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320297164 Expired - Fee Related CN203239560U (en) | 2013-05-27 | 2013-05-27 | Oil supplementing pump of internal-meshing cycloid gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730473A (en) * | 2018-07-05 | 2018-11-02 | 龙岩灵升机械有限公司 | A kind of wheel digging fluid power speed change system |
| CN113883050A (en) * | 2021-09-29 | 2022-01-04 | 四川航天世源科技有限公司 | Motor oil pump |
-
2013
- 2013-05-27 CN CN 201320297164 patent/CN203239560U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730473A (en) * | 2018-07-05 | 2018-11-02 | 龙岩灵升机械有限公司 | A kind of wheel digging fluid power speed change system |
| CN108730473B (en) * | 2018-07-05 | 2024-05-03 | 龙岩灵升机械有限公司 | Hydraulic transmission system for round digging |
| CN113883050A (en) * | 2021-09-29 | 2022-01-04 | 四川航天世源科技有限公司 | Motor oil 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: 20131016 Termination date: 20170527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |