CN206570520U - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN206570520U CN206570520U CN201720252144.5U CN201720252144U CN206570520U CN 206570520 U CN206570520 U CN 206570520U CN 201720252144 U CN201720252144 U CN 201720252144U CN 206570520 U CN206570520 U CN 206570520U
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- oil
- axle
- shaft sleeve
- front shaft
- upper axle
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Abstract
The utility model provides a kind of sewing machine, it includes casing, the upper axle being laterally disposed in casing, upper axle at casing positioning with being arranged with axle sleeve, axle sleeve includes the front shaft sleeve and the bottom bracket axle in the middle of upper axle positioned at upper axle leading section, there is the oil duct extended along axis in the upper axle, there is the oil inlet being connected with the oil duct on the upper axle, and connect on the oil duct and the upper axle and the oil outlet in front axle inner room gap, the outer wall of upper axle with oil-way；Provided with oily cotton at the correspondence oil outlet in the oil duct；Having on front shaft sleeve has oil-recovery tank on axially extending drainback passage, and front shaft sleeve inwall, the oil-recovery tank is connected by spill port with the drainback passage.Sewing machine of the present utility model its without permeability phenomenon.
Description
Technical field
The utility model is related to sewing machine technique field, more particularly to a kind of sewing machine.
Background technology
Upper axle is positioned in casing by axle sleeve in sewing machine, in order to ensure lubrication of the upper axle when high speed rotates, generally
Can lubrication system be set in axle sleeve.Such as existing Chinese patent ZL 201220640746.5 discloses a kind of axle sleeve of sewing machine, wraps
Include to offer on body, the outer wall of body on oil-recovery tank, the end face of body and offer oilhole along the axial direction of body, oilhole with
Oil-recovery tank is connected.It uses fuel feeding in axle fuel feed pump upward axis vestibule, and lubricating oil passes through in upper axle high-speed rotation
Oilhole on upper axle is flowed into the gap of axle sleeve and upper between centers, then by the oilhole on axle sleeve enter in oil-recovery tank, realizations axle with
The oil-return lubrication of shaft room.But in greasing, easily there is permeability situation in axle sleeve and upper between centers, and lubricating oil is lubricated
With upper axle, rotation will be run to the rear end of axle sleeve at a high speed in journey, and then can form mist of oil when being sprayed from the afterbody of axle sleeve, and mist of oil exists
Sewing machine head converges to form long-pending oil, and then pollutes sewing.
Accordingly, it would be desirable to a kind of sewing machine produced without permeability and reduction mist of oil.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of sewing machine, for solving
The problem of certainly easy permeability in sewing machine head is with mist of oil, pollution sewing is produced in the prior art.
In order to achieve the above objects and other related objects, the utility model provides a kind of sewing machine, and the sewing machine includes
Casing, the upper axle being laterally disposed in casing, upper axle include being located at upper axle leading section with being arranged with axle sleeve, axle sleeve at casing positioning
Front shaft sleeve and the bottom bracket axle in the middle of upper axle, having in the upper axle on the oil duct extended along axis, the upper axle has
The oil inlet being connected with the oil duct, and the oil duct and the upper axle and the oil outlet in front axle inner room gap are connected, on
There is oil-way on the outer wall of axle；Provided with oily cotton at the correspondence oil outlet in the oil duct；Have axially on front shaft sleeve
There is oil-recovery tank, the oil-recovery tank passes through spill port and the drainback passage phase on the drainback passage of extension, and front shaft sleeve inwall
Even.
It is preferred that, the oil-way is spiral helicine groove.
It is preferred that, the oil outlet is arranged on the axial centre corresponding section with the front shaft sleeve on the upper axle.
It is preferred that, the front end of the front shaft sleeve has the ring oil-recovery tank communicated with the oil-recovery tank.
It is preferred that, the rear end of the front shaft sleeve has to be connected with the ring that the drainback passage and the oil-way are communicated
Groove.
It is preferred that, the rear end of the front shaft sleeve has the upper shaft retaining ring of backstop front shaft sleeve.
It is preferred that, there is filling sealed enclosure and the fluid sealant in the front axle inner room space to use on the outer wall of the front shaft sleeve
Glue sealing groove.
As described above, sewing machine of the present utility model, has the advantages that：Its by setting oily cotton in oil duct,
To weaken lubricating oil in the case where upper axle rotates at a high speed because centrifugal force enters the flow of oil outlet, prevent the lubricating oil of big flow from entering with this
Enter upper axle and front axle inner room and form mist of oil in both ends, the situation of permeability occur；In addition, being set on front shaft sleeve inwall
Oil-recovery tank, increases cross-sectional area at oil return with this, reduces oil pressure, can reduce the formation of mist of oil, further avoid permeability.
Brief description of the drawings
Fig. 1 is shown as the partial view of sewing machine of the present utility model.
Fig. 2 is shown as the partial sectional view of sewing machine of the present utility model.
Fig. 3 is shown as front shaft sleeve schematic diagram of the present utility model.
Component label instructions
1 closeouts
Axle on 2
21 oil-ways
22 oil ducts
23 oil outlets
3 front shaft sleeves
31 ring oil-recovery tanks
32 drainback passages
33 spill ports
34 oil-recovery tanks
35 ring connectivity slots
36 glue sealing grooves
4 oily cottons
5 Sealing shield rings
6 fuel feed pumps
7 needle bar cranks
8 casings
9 bottom bracket axles
10 oil pump components
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
Fig. 1 is referred to Fig. 3.It should be clear that structure, ratio, size depicted in this specification institute accompanying drawing etc., are only used to
Coordinate the content disclosed in specification, so that those skilled in the art is understood with reading, be not limited to the utility model
Enforceable qualifications, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, in the case where not influenceing the utility model effect that can be generated and the purpose that can reach, all should still fall in the utility model
In the range of disclosed technology contents can be covered.Meanwhile, in this specification it is cited as " on ", " under ", " left side ",
The term on " right side ", " centre " and " one " etc., is merely convenient to understanding for narration, and it is enforceable to be not used to restriction the utility model
Scope, being altered or modified for its relativeness is enforceable when being also considered as the utility model under without essence change technology contents
Category.
As shown in figure 1, the utility model provides a kind of sewing machine, the sewing machine includes casing 8, is laterally disposed in casing 8
Interior upper axle 2, upper axle 2 includes the He of front shaft sleeve 3 positioned at upper axle leading section with being arranged with axle sleeve, axle sleeve at the positioning of casing 8
There is the oil duct 22 extended along axis, as shown in Figure 2, on the upper axle 2 in bottom bracket axle 9 in the middle of upper axle, the upper axle 2
With the oil inlet being connected with the oil duct 22, and between connection oil duct 22 and the upper axle 2 and front shaft sleeve 3 gap it is fuel-displaced
There is oil-way 21 on hole 23, the outer wall of upper axle 2；Provided with oily cotton 4 at the correspondence oil outlet 23 in the oil duct 22；Before
There is axially extending drainback passage 32 on axle sleeve 3, and there is oil-recovery tank 34 on front shaft sleeve inwall, the oil-recovery tank 34 is by returning
Oilhole 33 is connected with the drainback passage 32.The utility model in oil duct 22 by setting oily cotton, to weaken lubricating oil upper
Because centrifugal force enters the flow of oil outlet 23 under axle high speed rotation, prevent the lubricating oil of big flow from entering upper axle 2 and front axle with this
Mist of oil is formed between set 3 and in both ends, the situation of permeability occurs；In addition, oil-recovery tank 34 is set on front shaft sleeve inwall, with
This increases cross-sectional area at oil return, reduces oil pressure, can reduce the formation of mist of oil, further avoid permeability.
Above-mentioned oil-way 21 is spiral helicine groove, lubricating oil is preferably protected in upper axle and the formation of front axle inner room with this
Protect oil film.In the present embodiment, above-mentioned oil inlet is arranged at the correspondence bottom bracket axle 9 of axle 2, and above-mentioned oil outlet 23 is located at upper 2 pairs of axle
Answer the center of front shaft sleeve 3.
Further to avoid the occurrence of permeability, above-mentioned oil outlet 23 is arranged on the axial centre on axle 2 with front shaft sleeve 3
Corresponding section, as shown in Figure 2.And front axle oil outlet 23 is made to be located at axial centre corresponding position with front shaft sleeve 3 in the present embodiment, i.e.,
The axial length central point correspondence of set 3, making it, oil groove 34 is corresponding with going out on front shaft sleeve 3, reduces lubricating oil from the head of front shaft sleeve 3
Discharge, it is to avoid permeability occur.
Preferably to avoid the occurrence of permeability, the front end of above-mentioned front shaft sleeve 3 has the ring oil-recovery tank communicated with oil-recovery tank 34
31.Ring oil-recovery tank 31 is the anterior annular groove set in front shaft sleeve, and it is enclosed around upper axle one, is collected with this by the upper He of axle 2
The mist of oil that front shaft sleeve front end is formed, makes the mist of oil at this enter drainback passage 32 by ring oil-recovery tank 31, realizes lubricating oil
Reclaim, it is to avoid permeability occurs in front shaft sleeve front end.
The rear end of above-mentioned front shaft sleeve 3 has the ring connectivity slot communicated with drainback passage 32 and the oil-way 21
35, as shown in Fig. 2 and Fig. 3.Ring connectivity slot 35 is the annular groove set at the rear portion of front shaft sleeve, and it is enclosed around upper axle one, with
The mist of oil that this collection is formed by upper axle 2 and front shaft sleeve rear end, makes the mist of oil at this enter drainback passage by ring connectivity slot 35
32, realize the recovery of lubricating oil, it is to avoid the mist of oil splashes of formation cause head long-pending oil to casing 8.
The rear end of above-mentioned front shaft sleeve 3 has the upper shaft retaining ring 5 of backstop front shaft sleeve, and it is the upper axle of positioning and front shaft sleeve that it, which is acted on,.
As shown in figure 3, having the fluid sealant in space between filling sealed enclosure 8 and front shaft sleeve 3 on the outer wall of front shaft sleeve 3
Glue sealing groove 36, the oil seepage between front shaft sleeve and casing is avoided with this.
Sewing machine of the present utility model, it can be flat seam machine, and upper axle 2 is determined by front shaft sleeve 3 and bottom bracket axle 9 with casing 8
Position, the front end of upper axle 2 is connected with needle bar crank 7 to be passed through on fuel feed pump 6 and above-mentioned upper axle there is provided the oil pump component 10 of lubricating oil
Oil inlet is connected, and lubricating oil is entered by oil inlet in the oil duct 22 of upper axle, and upper axle has central through-hole in the present embodiment, in
Heart through hole constitutes oil duct, and has closeouts 1 in the front end of central through-hole, and oil duct 22 is sealed with this.Lubricating oil is flowed through
Oil duct 22 is reached at oily cotton 4, oily 4 storage lubricating oil of cotton, the effect of reduction lubrication oil flow rate；Reach the lubricating oil at oily cotton 4
Under the centrifugal action produced during the upper high-speed rotation of axle 2, a part is flowed out at oil outlet 23 up to oil-way 21
In oil-recovery tank 34, lubricating oil is penetrated into the gap of front shaft sleeve 3 and upper axle 2, between front shaft sleeve 3 and the contact surface of upper axle 2
One layer of oil film is formed, the purpose that axle 2 weares and teares during high-speed rotation in the upper axle 2 of lubrication, reduction is reached.Oil-way 21 is upper
The axial force of a right direction into Fig. 2 is produced in the rotary course of axle 2 to lubricating oil, head of the lubricating oil from front shaft sleeve 3 is reduced
Portion is oozed out.The head end of lubricating oil from the front shaft sleeve 3 do not discharged from oil-way 21 is oozed out, under the influence of centrifugal force lubricating oil
It is thrown at the ring oil-recovery tank 31 of front shaft sleeve 3, is discharged from the drainback passage 32 connected with ring oil-recovery tank 31.
In summary, sewing machine of the present utility model, it in oil duct by setting oily cotton, to weaken lubricating oil in upper axle
Because centrifugal force enters the flow of oil outlet under rotating at a high speed, with this prevent the lubricating oil of big flow enter upper axle and front axle inner room and
Mist of oil is formed in both ends, the situation of permeability occurs；In addition, setting oil-recovery tank on front shaft sleeve inwall, increased back with this
Cross-sectional area at oil, reduces oil pressure, can reduce the formation of mist of oil, further avoid permeability.So, the utility model is effective
Overcome various shortcoming of the prior art and have high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (7)
1. a kind of sewing machine, the sewing machine includes casing, the upper axle being laterally disposed in casing, upper axle at casing positioning with covering
Provided with axle sleeve, axle sleeve includes the front shaft sleeve and the bottom bracket axle in the middle of upper axle positioned at upper axle leading section, it is characterised in that described
Having in upper axle has the oil inlet being connected with the oil duct on the oil duct extended along axis, the upper axle, and connection institute
Stating has oil-way on oil duct and the upper axle and the oil outlet in front axle inner room gap, the outer wall of upper axle；In the oil duct
Provided with oily cotton at the correspondence oil outlet；Having on front shaft sleeve on axially extending drainback passage, and front shaft sleeve inwall has back
Oil groove, the oil-recovery tank is connected by spill port with the drainback passage.
2. sewing machine according to claim 1, it is characterised in that：The oil-way is spiral helicine groove.
3. sewing machine according to claim 1, it is characterised in that：The oil outlet be arranged on the upper axle with it is described before
The axial centre corresponding section of axle sleeve.
4. sewing machine according to claim 1, it is characterised in that：The front end of the front shaft sleeve has and the oil-recovery tank phase
Logical ring oil-recovery tank.
5. sewing machine according to claim 1, it is characterised in that：The rear end of the front shaft sleeve has and the drainback passage
The ring connectivity slot communicated with the oil-way.
6. sewing machine according to claim 5, it is characterised in that：The rear end of the front shaft sleeve has the upper of backstop front shaft sleeve
Shaft retaining ring.
7. sewing machine according to claim 1, it is characterised in that：There is filling sealed enclosure on the outer wall of the front shaft sleeve
With the glue sealing groove of the fluid sealant in the front axle inner room space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720252144.5U CN206570520U (en) | 2017-03-15 | 2017-03-15 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720252144.5U CN206570520U (en) | 2017-03-15 | 2017-03-15 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570520U true CN206570520U (en) | 2017-10-20 |
Family
ID=60054646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720252144.5U Active CN206570520U (en) | 2017-03-15 | 2017-03-15 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206570520U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757854A (en) * | 2017-03-15 | 2017-05-31 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108823842A (en) * | 2018-07-17 | 2018-11-16 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its head |
-
2017
- 2017-03-15 CN CN201720252144.5U patent/CN206570520U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757854A (en) * | 2017-03-15 | 2017-05-31 | 杰克缝纫机股份有限公司 | Sewing machine |
| CN108823842A (en) * | 2018-07-17 | 2018-11-16 | 杰克缝纫机股份有限公司 | A kind of sewing machine and its head |
| CN108823842B (en) * | 2018-07-17 | 2020-10-02 | 杰克缝纫机股份有限公司 | Sewing machine and machine head thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 318010 No. 1008, east section of Donghai Avenue, Sanjia, Jiaojiang District, Taizhou City, Zhejiang Province Patentee after: Jack Technology Co.,Ltd. Address before: 318010 No. 15 Airport South Road, Jiaojiang District, Zhejiang, Taizhou Patentee before: JACK SEWING MACHINE Co.,Ltd. |