CN200961577Y - Sewing machine supply-sucking oil pump - Google Patents
Sewing machine supply-sucking oil pump Download PDFInfo
- Publication number
- CN200961577Y CN200961577Y CN 200620109151 CN200620109151U CN200961577Y CN 200961577 Y CN200961577 Y CN 200961577Y CN 200620109151 CN200620109151 CN 200620109151 CN 200620109151 U CN200620109151 U CN 200620109151U CN 200961577 Y CN200961577 Y CN 200961577Y
- Authority
- CN
- China
- Prior art keywords
- oil
- external
- impeller
- external tooth
- oil outlet
- 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
Links
- 238000009958 sewing Methods 0.000 title claims description 13
- 239000000945 filler Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 40
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Rotary Pumps (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The utility model discloses a sartorius feeding and sucking oil pump, belonging to the industry sartorius lubricating device technical field, comprising a pump body having an impeller and an axle hole; wherein the impeller has an axis; an oil feed-back cavity is added between the axle hole and the impeller, and the center of the oil feed-back cavity is deviated from the axial position of the axle hole; a shielding cover is provided between the oil feed-back cavity and the impeller; the axis is equipped with an external spline, and the external spline is cooperated to provide with a rotation shaft which has an inner spline; the external diameter of one end of the rotation shaft is equipped with an external tooth; the external tooth is cooperated to provide with a gear-shaped vane; the inner diameter of the gear-shaped vane is larger than the external diameter of the external tooth, but there are some portions which can be meshed; the external tooth and the gear-shaped vane are arranged inside the oil feed-back cavity; the other end of the rotation shaft is sleeved inside the axle hole; and an oil inlet and an oil outlet are opened in the oil feed-back cavity, the oil inlet is communicated with the outside of the pump body through an oil inlet hole, and the oil outlet is communicated with the outside of the pump body through an oil outlet hole. The sartorius feeding and sucking oil pump of the utility model has good oil suction effect, long operating life, low noise, simple structure and low cost, and is not required to maintain.
Description
Technical field
The utility model discloses a kind of sewing machine Oil-supplying pump, belong to the technical field of industrial sewing machine lubricating fitting.
Background technique
Employed in the market sewing machine oil pump is except the function that fuel feeding is arranged, also possessed the function that absorbs excess oil, mainly be by on impeller shaft, processing eccentric shaft, withstand with plunger at eccentric part again, 120 ° of eccentric shaft work one its oil suctions of week once, hard friction seldom and takes place between axle and the plunger in oil mass, life-span is low, noise is big, can not keep in repair, replacement cost is big.
The model utility content
For overcoming the shortcoming of above-mentioned prior art, the utility model provides a kind of fuel feeding, oil suction and long service life simultaneously, sewing machine Oil-supplying pump that noise is low.
For achieving the above object, the technological scheme that the utility model adopted is: a kind of sewing machine Oil-supplying pump, comprise the pump housing that has impeller and axis hole, and impeller has axle, have additional oil back chamber between described axis hole and the impeller, and the axial location of the misalignment axis hole of oil back chamber; Be provided with shielding can between oil back chamber and the impeller; Axle is provided with external splines, cooperate the rotating shaft that is provided with the band internal spline on the external splines, the external diameter of rotating shaft one end is provided with external tooth, cooperate on the external tooth and be provided with the gear shape blade, and the internal diameter of gear shape blade is bigger than external tooth external diameter, but have part engageable, and external tooth and gear shape blade are positioned at oil back chamber, and the rotating shaft the other end is enclosed within the axis hole; Offer filler opening and oil outlet in the oil back chamber, filler opening communicates with the pump housing external world by oil inlet hole, and oil outlet communicates with the pump housing external world by oil outlet.
As the further setting of such scheme, described filler opening has dashpot, and oil outlet has dashpot, is beneficial to better, more to absorb oil.
Be provided with steel bushing between described axis hole and the rotating shaft, oil outlet communicates with the steel bushing inwall by oil outlet.Steel bushing be provided with the rotation that is beneficial to rotating shaft.
The oil suction of the utility model sewing machine Oil-supplying pump is effective, long service life, noise are low, simple in structure, need not maintenance, cost of production is low.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is the sectional structure schematic representation of bowing of Fig. 1;
Fig. 3 is the structural representation of oil back chamber among Fig. 1;
Fig. 4 is the structural representation that Fig. 1 shaft external tooth, gear shape blade are positioned at oil back chamber.
Specific embodiment
As shown in Figure 1, 2, the sewing machine Oil-supplying pump of the utility model specific embodiment comprises the pump housing 2 that has oil supply hole 11, fuel supply line 10, impeller 4 and axis hole 15, and impeller 4 has axle 12.Have additional oil back chamber 17 between axis hole 15 and the impeller 4, and the axial location of the misalignment axis hole 15 of oil back chamber 17.Shown in Fig. 2,4, axle 12 is provided with external splines 21, cooperates the rotating shaft 6 that is provided with band internal spline 22 on the external splines 21, the external diameter of rotating shaft 6 one ends is provided with external tooth 23, cooperate on the external tooth 23 to be provided with gear shape blade 7, and the internal diameter of gear shape blade 7 is bigger than external tooth 23 external diameters, but has part engageable; Rotating shaft 6 the other ends are enclosed within the axis hole 15, and also are provided with steel bushing 5 between rotating shaft 6 and the axis hole 15.The external tooth 23 and the gear shape blade 7 of rotating shaft 6 all are positioned at oil back chamber 17, and are isolated by shielding can 8 between oil back chamber 17 and the impeller 4, and shielding can 8 has eccentric opening.Axle 12 is by the socket that matches with rotating shaft 6 again behind the eccentric opening of shielding can 8.The position of eccentric opening is corresponding with axis hole 15, and the internal diameter of shielding can 8 equals or be slightly larger than the external diameter of gear shape blade 7, makes the external tooth 23 of gear shape blade 7 and rotating shaft 6 be in as shown in Figure 4 mated condition all the time.Shown in Fig. 2,3,4, offer filler opening 13 and the band dashpot 18b oil outlet 14 of band dashpot 18a in the oil back chamber 17, filler opening 13 communicates with the pump housing 2 external worlds by oil inlet hole 19; Oil outlet 14 communicates with steel bushing 5 inwalls by oil outlet 20.That end that the pump housing 2 is installed impeller 4 seals with the square 3 that has dividing plate 9, and dividing plate 9 centers have through hole.The pump housing 2 is fixed on the connecting plate 1 by screw.
During use, square 3 parts of sewing machine Oil-supplying pump are immersed in the fuel tank, opening machine rotates rotating shaft 6, rotating shaft 6 is again by 4 rotations of axle 12 impeller, oil in the fuel tank just enters by the through hole of square 3 from dividing plate 9, to oil supply hole 11 and fuel supply line 10, finally flow to each lubricating structure through impeller 4 rotating flows.
Simultaneously, the rotation of rotating shaft 6 has also driven 7 rotations of gear shape blade.Because the restriction of shielding can 8, rotation between gear shape blade 7 and the rotating shaft 6 remains state as schematically shown in Figure 4, when being rotating shaft 6 rotations, gear shape blade 7 has part to be meshed with rotating shaft 6 all the time, out of mesh part forms a plurality of cavitys not of uniform size 16, and between each cavity 16 pressure difference is arranged.When rotating shaft 6 rotates counterclockwise, the cavity 16 big or small ascending arrangements on the left side, because the effect of rotating force, this moment, the cavity 16 interior meetings on the left side formed negative pressure, therefore, filler opening 13 just is arranged in the minimum cavity 16 on this left side.Because the speed of rotation is very fast,, is beneficial to more waste oil and can enters cavity 16 from filler opening 13 simultaneously by oil inlet hole 19 so filler opening 13 is provided with dashpot 18a.The cavity 16 interior waste oil that enter the left side will be continued to press to the right under the effect of rotating force.And opposite with the left side, the cavity 16 big or small descending arrangements on the right, because the effect of rotating force, this moment, the cavity 16 interior meetings on the right formed malleations, needed release pressure, therefore, oil outlet 14 just is arranged in the cavity 16 on the right.Because the speed of rotation is very fast, so oil outlet 14 is provided with dashpot 18b, being beneficial to more waste oil can discharge outside the pump housing 2 by oil outlet 20 from oil outlet 14 simultaneously.
Claims (3)
1. sewing machine Oil-supplying pump, comprise the pump housing (2) that has impeller (4) and axis hole (15), impeller (4) has axle (12), it is characterized in that having additional oil back chamber (17) between described axis hole (15) and the impeller (4), and the axial location of the misalignment axis hole (15) of oil back chamber (17); Be provided with shielding can (8) between oil back chamber (17) and the impeller (4); Axle (12) is provided with external splines (21), external splines (21) is gone up and is cooperated the rotating shaft (6) that is provided with band internal spline (22), the external diameter of rotating shaft (6) one ends is provided with external tooth (23), external tooth (23) is gone up to cooperate and is provided with gear shape blade (7), and the internal diameter of gear shape blade (7) is bigger than external tooth (23) external diameter, but have part engageable, and external tooth (23) and gear shape blade (7) are positioned at oil back chamber (17), and rotating shaft (6) the other end is enclosed within the axis hole (15); Offer filler opening (13) and oil outlet (14) in the oil back chamber (17), filler opening (13) communicates with the pump housing (2) external world by oil inlet hole (19), and oil outlet (14) communicates with the pump housing (2) external world by oil outlet (20).
2. according to the described sewing machine Oil-supplying pump of claim 1, it is characterized in that described filler opening (13) has dashpot (18a), oil outlet (14) has dashpot (18b).
3. according to the described sewing machine Oil-supplying pump of claim 1, it is characterized in that being provided with steel bushing (5) between described axis hole (15) and the rotating shaft (6), oil outlet (14) communicates with steel bushing (5) inwall by oil outlet (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109151 CN200961577Y (en) | 2006-10-28 | 2006-10-28 | Sewing machine supply-sucking oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620109151 CN200961577Y (en) | 2006-10-28 | 2006-10-28 | Sewing machine supply-sucking oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200961577Y true CN200961577Y (en) | 2007-10-17 |
Family
ID=38798092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620109151 Expired - Fee Related CN200961577Y (en) | 2006-10-28 | 2006-10-28 | Sewing machine supply-sucking oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200961577Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201818A (en) * | 2015-10-13 | 2015-12-30 | 苏州科润织造有限公司 | Cycloid rotor pump of sewing machine |
| CN106498637A (en) * | 2017-01-05 | 2017-03-15 | 无锡市兴达缝纫机配件有限公司 | A kind of oil box for sewing machine |
-
2006
- 2006-10-28 CN CN 200620109151 patent/CN200961577Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201818A (en) * | 2015-10-13 | 2015-12-30 | 苏州科润织造有限公司 | Cycloid rotor pump of sewing machine |
| CN106498637A (en) * | 2017-01-05 | 2017-03-15 | 无锡市兴达缝纫机配件有限公司 | A kind of oil box for sewing machine |
| CN106498637B (en) * | 2017-01-05 | 2022-03-04 | 无锡市兴达缝纫机配件有限公司 | Oil box for sewing machine |
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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: 20071017 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |