CN203411777U - Sewing machine oscillating shaft sleeve with oil return function - Google Patents
Sewing machine oscillating shaft sleeve with oil return function Download PDFInfo
- Publication number
- CN203411777U CN203411777U CN201320474688.8U CN201320474688U CN203411777U CN 203411777 U CN203411777 U CN 203411777U CN 201320474688 U CN201320474688 U CN 201320474688U CN 203411777 U CN203411777 U CN 203411777U
- Authority
- CN
- China
- Prior art keywords
- swinging
- oscillating shaft
- shaft sleeve
- oil return
- bush
- 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
Abstract
The utility model relates to the technical field of sewing machines and particularly discloses a sewing machine oscillating shaft sleeve with an oil return function. The sewing machine oscillating shaft sleeve is arranged in a mounting hole in an enclosure, an oscillating shaft is arranged in the oscillating shaft sleeve, an oscillating gap is arranged between the oscillating shaft sleeve and the oscillating shaft, a sealing ring is arranged on the oscillating shaft located in a sealing gap, an oil return hole penetrating through the oscillating shaft sleeve is formed in the side face of the oscillating shaft sleeve, an oil return groove distributed along the axial direction is formed in the outer side face of the oscillating shaft sleeve, one end of the oil return groove is communicated with the oil return hole, and the other end of the oil return groove is communicated with the inner end of the oscillating shaft sleeve. Therefore, the sewing machine oscillating shaft sleeve disclosed by the utility model has the beneficial effects that the reflux of the engine oil in the oscillating gap is kept so as to prevent the engine oil from being instantly extruded to leak to the outside of the handpiece.
Description
Technical field
The utility model relates to sewing machine technique field, relates in particular to a kind of Sewing machines swinging bush with oil return function.
Background technology
Sewing machines is because of the stitching neat appearance of stitching out, smooth firm, and sewing velocity is fast, easy to use, very popular, and industrial sewing machine is also widely used in various enterprises now.The swinging bush that has various swinging axles in Sewing machines and coordinate with swinging axle, yet in some swinging axle, there is one section to be positioned at head inside, and the other end stretches out head from head inside, easily leakage of oil in the swinging bush at this place and the swing gap between swinging axle, because the gap between swinging axle and swinging bush is larger, and in head, there is the machine oil of being full of, the gap of swinging bush endoporus is communicated with the cavity in head, therefore in the gap of swinging bush endoporus and swinging axle, be full of machine oil, swinging axle can cause extruding to the machine oil in gap when swinging, because gap is relatively sealed, machine oil cannot be discharged moment, thereby cause machine oil to leak out from swinging the other end blind end of cover, even if sealing ring is set on swinging axle, part machine oil is subject to also can leaking into head outside from sealing ring after local larger pressure, thereby cause outer pollution, have a strong impact on the normal use of Sewing machines.
Utility model content
The utility model is in order to overcome the swinging axle high speed swinging in Sewing machines swinging bush of the prior art, thereby extruding machine oil, the deficiency that causes engine oil leakage to pollute to head outside, provides a kind of and can effectively prevent that machine oil moment is squeezed and leaks out head outside, has the Sewing machines swinging bush of oil return function.
To achieve these goals, the utility model adopts following technical scheme:
A kind of Sewing machines swinging bush with oil return function, be arranged in the installing hole on casing, in swinging bush, be provided with swinging axle, between described swinging bush and swinging axle, be provided with and swing gap, the swinging axle that is positioned at seal clearance is provided with sealing ring, the side of described swinging bush is provided with the spill port that connects swinging bush, the lateral surface of described swinging bush is provided with the oil-recovery tank distributing vertically, one end of described oil-recovery tank is communicated with spill port, and the other end of oil-recovery tank and the inner of swinging bush connect.The swing gap of swinging bush the inner is communicated with the internal cavity of head of sewing machine, head of sewing machine inside is full of machine oil, therefore swing and in gap, be also full of machine oil, the swing gap of swinging bush outer end seals by sealing ring, prevent that machine oil from flowing out head outside, can be to swinging the larger pressure of machine oil moment generation in gap when swinging axle swings in swinging gap, now machine oil is back to head of sewing machine inside from outflow in spill port endlessly under the effect of swinging axle after oil-recovery tank, thereby prevent machine oil from the space that swings this relative closure of gap, receiving extruding and from the outside seepage of sealing ring, effectively prevent the lubricating oil leakage in head of sewing machine.
As preferably, the endoporus of described swinging bush is shoulder hole, and the aperture of swinging bush outer end is greater than inner aperture, the endoporus interference fit of described sealing ring and swinging bush outer end.Sealing ring self has certain elasticity, swing gap is smaller, and therefore the design by shoulder hole increases the difference of the internal-and external diameter of sealing ring, and the crimp ability of sealing ring is stronger, thereby the drag effect of the sealing ring relatively reducing to swinging axle, swinging axle swings more stable.
As preferably, it is characterized in that, between the inner end of described swinging bush and lateral surface, be provided with ramp down angle.In order to prevent that machine oil from leaking from the outside of swinging bush, between swinging bush and installing hole, be all interference fit, the assembling between swinging bush and installing hole is convenient at ramp down angle.
Therefore, the utlity model has the machine oil that can keep swinging in gap and reflux, thereby prevent machine oil moment to be squeezed and leak out the beneficial effect of head outside.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the upward view of swinging bush in the utility model.
In figure: casing 1 swinging bush 2 swinging axles 3 swing 4 sealing ring 5 spill port 6 oil-recovery tank 7 ramp down angles 8, gap.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of Sewing machines swinging bush with oil return function as depicted in figs. 1 and 2, be arranged in the installing hole on casing 1, in swinging bush 2, be provided with swinging axle 3, swinging axle left end is positioned at head of sewing machine inside, the part of swinging axle right-hand member is stretched out head of sewing machine outside, head of sewing machine inside is full of machine oil, between swinging bush 2 and swinging axle 3, be provided with and swing gap 4, the swinging axle that is positioned at seal clearance is provided with sealing ring 5, in the swing gap in sealing ring left side, be full of machine oil, sealing ring can prevent that the machine oil of head of sewing machine inside from flowing to Sewing machines outside from swinging gap location, during Sewing machines work, swinging axle is high speed swinging in swinging bush, in the process swinging, the machine oil swinging in gap is produced to squeezing action, the side of swinging bush 2 is provided with the spill port 6 that connects swinging bush, the lateral surface of swinging bush 2 is provided with the oil-recovery tank 7 distributing vertically, the right-hand member of oil-recovery tank 7 is communicated with spill port 6, the left end end of oil-recovery tank 7 and the inner of swinging bush 2 connect, the machine oil being squeezed enters spill port and is back in head of sewing machine through oil-recovery tank, thereby form loop smoothly, the machine oil swinging in gap can not seal because of swinging bush right-hand member, be squeezed and from sealing ring, leak out by force, thereby effectively prevented the seepage of machine oil, the direction of arrow in Fig. 1 represents to swing the machine oil backflow direction in gap, the endoporus of swinging bush 2 is shoulder hole, the aperture of swinging bush outer end is greater than inner aperture, described sealing ring 5 and the endoporus interference fit of swinging bush 2 outer ends, sealing ring self has certain elasticity, swing gap is smaller, and therefore the design by shoulder hole increases the difference of the internal-and external diameter of sealing ring, and the crimp ability of sealing ring is stronger, thereby the drag effect of the sealing ring relatively reducing to swinging axle, swinging axle swings more stable, between the inner end of swinging bush 2 and lateral surface, being provided with ramp down angle 8, in order to prevent that machine oil from leaking from the outside of swinging bush, is all interference fit between swinging bush and installing hole, and the assembling between swinging bush and installing hole is convenient at ramp down angle.Therefore, the utlity model has the machine oil that can keep swinging in gap and reflux, thereby prevent machine oil moment to be squeezed and leak out the beneficial effect of head outside.
Claims (3)
1. a Sewing machines swinging bush with oil return function, be arranged in the installing hole on casing (1), in swinging bush (2), be provided with swinging axle (3), between described swinging bush (2) and swinging axle (3), be provided with and swing gap (4), the swinging axle that is positioned at seal clearance is provided with sealing ring (5), it is characterized in that, the side of described swinging bush (2) is provided with the spill port (6) that connects swinging bush, the lateral surface of described swinging bush (2) is provided with the oil-recovery tank (7) distributing vertically, one end of described oil-recovery tank (7) is communicated with spill port (6), the inner of the other end of oil-recovery tank (7) and swinging bush (2) connects.
2. a kind of Sewing machines swinging bush with oil return function according to claim 1, it is characterized in that, the endoporus of described swinging bush (2) is shoulder hole, the aperture of swinging bush outer end is greater than inner aperture, the endoporus interference fit of described sealing ring (5) and swinging bush (2) outer end.
3. a kind of Sewing machines swinging bush with oil return function according to claim 1 and 2, is characterized in that, is provided with ramp down angle (8) between the inner end of described swinging bush (2) and lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474688.8U CN203411777U (en) | 2013-08-06 | 2013-08-06 | Sewing machine oscillating shaft sleeve with oil return function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320474688.8U CN203411777U (en) | 2013-08-06 | 2013-08-06 | Sewing machine oscillating shaft sleeve with oil return function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203411777U true CN203411777U (en) | 2014-01-29 |
Family
ID=49974681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320474688.8U Expired - Fee Related CN203411777U (en) | 2013-08-06 | 2013-08-06 | Sewing machine oscillating shaft sleeve with oil return function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203411777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237064A (en) * | 2017-07-04 | 2017-10-10 | 杰克缝纫机股份有限公司 | Sewing machine |
-
2013
- 2013-08-06 CN CN201320474688.8U patent/CN203411777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237064A (en) * | 2017-07-04 | 2017-10-10 | 杰克缝纫机股份有限公司 | Sewing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203411777U (en) | Sewing machine oscillating shaft sleeve with oil return function | |
| CN203421156U (en) | Speed reducer and lubrication structure thereof | |
| CN203822692U (en) | Axial packing seal device | |
| CN103438198A (en) | Reducer and lubricating structure thereof | |
| CN203961966U (en) | Rotary valve mud pulse generator | |
| CN202732903U (en) | Leak-proof device of air filter | |
| CN201593607U (en) | Polytetrafluoetylene oil seal | |
| CN202017650U (en) | Sealing structure of pump | |
| CN201448232U (en) | Oil pump with built-in pump cover | |
| CN204041438U (en) | Hoghead assembly | |
| CN206290710U (en) | A kind of engine low friction crankshaft oil seal | |
| CN205036462U (en) | Engine cylinder housing oil filler hole structure | |
| CN202937811U (en) | Crank axle sealing structure of engine crankcase | |
| CN207297722U (en) | A kind of gas spring supporting rod | |
| CN202646710U (en) | Pulsator washing machine water seal | |
| CN203404047U (en) | Pressurizing oil supply lubricating mechanism for controlling pressure of lubricating oil for compressor | |
| CN203348800U (en) | Fast plug connector for clutch pipe | |
| CN207018580U (en) | Check-valves is opened in piston type rotation | |
| CN202040331U (en) | Seal ring with double seal lips | |
| CN204298823U (en) | A kind of high-pressure grout injector | |
| CN203335377U (en) | Self-adaption loss-free plunger pump shaft sealing device | |
| CN202717954U (en) | Parallel sewing machine lower shaft front end oil-leakage prevention device | |
| CN203516738U (en) | Pump-used security sealing device and application thereof | |
| CN202851421U (en) | Water pump with water storage cavity | |
| CN205978455U (en) | Motorcycle engine rotational speed output shaft seal structure |
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: 20140129 Termination date: 20200806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |