CN109468765A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
- Publication number
- CN109468765A CN109468765A CN201710802793.2A CN201710802793A CN109468765A CN 109468765 A CN109468765 A CN 109468765A CN 201710802793 A CN201710802793 A CN 201710802793A CN 109468765 A CN109468765 A CN 109468765A
- Authority
- CN
- China
- Prior art keywords
- sewing machine
- main shaft
- oil return
- electric cabinet
- end plate
- 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.)
- Pending
Links
- 238000009958 sewing Methods 0.000 title claims abstract description 62
- 239000003921 oil Substances 0.000 claims abstract description 69
- 239000010687 lubricating oil Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 3
- 241000209202 Bromus secalinus Species 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 4
- 239000003595 mist Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B81/00—Sewing machines incorporating devices serving purposes other than sewing, e.g. for blowing air, for grinding
Abstract
The present invention provides a kind of sewing machines, including casing end plate and main shaft, casing end plate is arranged between the chassis cavity of sewing machine and electric cabinet to seal off chassis cavity and electric cabinet, main shaft is rotationally threaded through on casing end plate, and casing end plate includes the first side wall towards electric cabinet and the second sidewall towards chassis cavity；Wherein, oil return hole is offered on casing end plate, the first port of oil return hole is located on the first side wall to be connected to the default oil return position being located at main shaft, has boss structure in second sidewall, the second port of oil return hole is located on the end face of boss structure.To when sewing machine topples over placement, lubricating oil in chassis cavity can be gathered in around casing end plate second sidewall convex platform structure, back to main shaft position and electric cabinet will not be entered by oil return hole, sewing machine in the prior art is solved when there is the case where toppling over placement, lubricating oil is easy to enter the problem of electric cabinet causes electric cabinet failure by oil return mechanism.
Description
Technical field
The present invention relates to sewing machine fields, in particular to a kind of sewing machine.
Background technique
Sewing machine in process of production, in order to guarantee the sufficient lubrication of sewing machine all parts, fills in the casing of sewing machine
There is lubricating oil.
As described in Figure 1, the lower section of casing 1 is provided with food tray 2, will be lubricated by the oil pump component 3 being arranged in food tray 2
Oil sprayed in the form of mist of oil on all parts to be lubricated to complete lubrication.
In course of normal operation, mist of oil enters electric cabinet and causes motor or electric elements failure in order to prevent, in machine
Right end cap 4 is provided on the shell wall of casing 1 between shell inner cavity and electric cabinet, right end cap 4 passes through the shell of sealing ring 5 and casing 1
It is sealed between wall, axis hole is offered on right end cap 4, thread bush 7 is arranged on main shaft 6, main shaft 6 is threaded through the right side by thread bush 7
In the axis hole of end cap 4, in 6 rotary course of main shaft, thread bush 7 will be sprayed to the mist of oil at main shaft 6 to be pushed away towards chassis cavity side
It squeezes to prevent mist of oil from entering electric cabinet.The mist of oil being pushed out right end cap 4 build-up inside and form oil droplet, oil droplet is along opening up
To achieve the purpose that oil return in the food tray 2 that the oil return hole 8 in the shell wall of casing 1 is back to lower section.
However, the oil-returning structure haves the defects that certain, sewing machine is put in transport handling process it sometimes appear that toppling over
The case where setting, when sewing machine topples over placement towards electric cabinet side, lubricating oil can flow to screw thread along oil return hole 8 in food tray 2
At set 7 and right end cap 4, and penetrated into electric cabinet by the gap between thread bush 7 and right end cap 4, it is automatically controlled so as to cause being located at
Motor and electric elements failure in case.
Although sewing machine can bleed off the lubricating oil in food tray 2 before packing and transporting, the profit of each piece surface remaining
Lubricating oil can not eliminate completely before packing, and therefore, remaining lubricating oil still passes through oil return hole 8 into electric cabinet.
Summary of the invention
The main purpose of the present invention is to provide a kind of sewing machines, are being toppled over solving sewing machine in the prior art
When the case where placement, lubricating oil is easy to enter the problem of electric cabinet causes electric cabinet failure by oil return mechanism.
To achieve the goals above, the present invention provides a kind of sewing machine, including casing end plate, main shaft, casing end plate is set
It sets to seal off chassis cavity and electric cabinet between the chassis cavity and electric cabinet of sewing machine, main shaft is rotationally worn
On casing end plate, casing end plate includes the first side wall towards electric cabinet and the second sidewall towards chassis cavity；Wherein,
Offer oil return hole on casing end plate, the first port of oil return hole be located on the first side wall with the default oil return that is located at main shaft
Position is connected to, and has boss structure in second sidewall, and the second port of oil return hole is located on the end face of boss structure.
Further, boss structure is the annular convex platform around main shaft.
Further, oil return hole is straight hole, and the lower part of chassis cavity is reserve；Wherein, between oil return hole and main shaft
With default angle, so that oil return hole is tilted by first port to second port towards reserve.
Further, sewing machine further include: thread bush is set on main shaft to rotate with main shaft, for that will spray to master
Lubricating oil on axis is pushed from one side of electric cabinet to chassis cavity side；Wherein, first port and thread bush are correspondingly arranged simultaneously position
In the lower section of thread bush.
Further, there is bearing pilot hole on casing end plate, be provided with bearing in bearing pilot hole, main shaft passes through bearing
It is rotationally threaded through on casing end plate；Wherein, first port is located on the inner wall of bearing pilot hole.
Further, sewing machine further include: end cap, end cap lid are located on bearing pilot hole with by chassis cavity and electric cabinet
It seals off, there is inner hole on end cap, thread bush is threaded through in the inner hole of end cap；Wherein, there is gap between end cap and bearing,
Gap between first port and end cap and bearing is connected to.
Further, bowl configurations are offered on the inner wall of bearing pilot hole, bowl configurations are connected to first port.
Further, radiation rib is provided on the casing of sewing machine.
Further, sewing machine further include: the first fan and the second fan, the first fan and the second fan are mounted on main shaft
It goes up and is located in electric cabinet.
Further, sewing machine further include: motor, main shaft are threaded through in motor；Wherein, the first fan and the second fan point
Not Wei Yu motor two sides.
Using the sewing machine of technical solution of the present invention, including casing end plate and main shaft, sewing machine is arranged in casing end plate
To seal off chassis cavity and electric cabinet between chassis cavity and electric cabinet, main shaft is rotationally threaded through casing end plate
On, casing end plate includes the first side wall towards electric cabinet and the second sidewall towards chassis cavity；Wherein, on casing end plate
Oil return hole is offered, the first port of oil return hole is located on the first side wall to be connected to the default oil return position being located at main shaft,
There is boss structure, the second port of oil return hole is located on the end face of boss structure in second sidewall.To topple in sewing machine
When placement, the lubricating oil in chassis cavity can be gathered in around casing end plate second sidewall convex platform structure, will not be by returning
Oilhole is back to main shaft position and enters electric cabinet, solves sewing machine in the prior art and the case where toppling over placement is occurring
When, lubricating oil is easy to enter the problem of electric cabinet causes electric cabinet failure by oil return mechanism.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the section structure of the main shaft oil-returning structure of existing sewing machine；
Fig. 2 is a kind of vertical section structure signal of optional main shaft oil-returning structure of sewing machine according to embodiments of the present invention
Figure；
Fig. 3 is optional a kind of second end position view of the oil return hole of sewing machine according to embodiments of the present invention；
Fig. 4 is optional a kind of first end position view of the oil return hole of sewing machine according to embodiments of the present invention；And
Fig. 5 is the structural schematic diagram of the radiation rib on optionally a kind of casing of sewing machine according to embodiments of the present invention.
Wherein, the above drawings include the following reference numerals:
1, casing；2, food tray；3, oil pump component；4, right end cap；5, sealing ring；6, main shaft；7, thread bush；8, oil return hole；
10, casing end plate；11, oil return hole；12, boss structure；13, bearing pilot hole；14, bowl configurations；20, chassis cavity；21, it stores up
Oily area；30, electric cabinet；40, main shaft；50, thread bush；60, bearing；70, end cap；80, radiation rib；90, the first fan；100,
Second fan；110, motor.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Sewing machine according to an embodiment of the present invention, as shown in Fig. 2, including casing end plate 10, main shaft 40, casing end plate 10 is set
It sets between the chassis cavity 20 and electric cabinet 30 of sewing machine to seal off chassis cavity 20 and electric cabinet 30, main shaft 40 can
It is rotationally threaded through on casing end plate 10, casing end plate 10 includes towards the first side wall of electric cabinet 30 and towards chassis cavity
20 second sidewall；Wherein, oil return hole 11 is offered on casing end plate 10, the first port of oil return hole 11 is located on the first side wall
To be connected to the default oil return position being located at main shaft 40, there is boss structure 12, the second end of oil return hole 11 in second sidewall
Mouth is located on the end face of boss structure 12.
Using the sewing machine of technical solution of the present invention, including casing end plate 10 and main shaft 40, the setting of casing end plate 10 is being stitched
It threads between the chassis cavity 20 and electric cabinet 30 of machine to seal off chassis cavity 20 and electric cabinet 30, main shaft 40 is rotationally
It is threaded through on casing end plate 10, casing end plate 10 includes the first side wall towards electric cabinet 30 and towards chassis cavity 20
Two side walls；Wherein, offer oil return hole 11 on casing end plate 10, the first port of oil return hole 11 be located on the first side wall with position
Default oil return position at main shaft 40 is connected to, and has boss structure 12 in second sidewall, and the second port of oil return hole 11 is located at
On the end face of boss structure 12.To which when sewing machine topples over placement, the lubricating oil in chassis cavity 20 can be gathered in chassis end
Around 10 second sidewall convex platform structure 12 of plate, back to 40 position of main shaft and electric cabinet will not be entered by oil return hole 11
30, solve sewing machine in the prior art when there is the case where toppling over placement, lubricating oil is easy to enter by oil return mechanism
Electric cabinet 30 and the problem of cause 30 failure of electric cabinet.
When it is implemented, as shown in figure 3, boss structure 12 is the annular convex platform around main shaft 40.The second end of oil return hole 11
Mouth is located at the lower end of boss structure 12.
The lower part of chassis cavity 20 is reserve 21, in order to enable the lubricating oil of the default oil return position at main shaft 40 to lead to
The reserve 21 of 20 lower part of chassis cavity freely is returned to, further, as shown in Fig. 2, oil return hole 11 is straight hole；Wherein, it returns
There is default angle, so that oil return hole 11 is inclined by first port to second port towards reserve 21 between oilhole 11 and main shaft 40
Tiltedly, lubricating oil can swimmingly be back to the reserve 21 of 20 lower part of chassis cavity by oil return hole 11.
As shown in Figure 2 and Figure 4, casing end plate 10 offers bearing pilot hole 13, is provided with bearing in bearing pilot hole 13
60, the outer ring of bearing 60 is fixed on the inner wall of bearing pilot hole 13, main shaft 40 pass through bearing 60 inner ring and with bearing 60
Inner ring is fixed, so that main shaft 40 be made to be rotatably mounted on casing end plate 10 by bearing 60；Wherein, first port is located at bearing
The lower part of the inner wall of pilot hole 13.
In order to when spraying lubricating oil to main shaft 40, prevent mist of oil along main shaft 40 axially into electric cabinet 30 causing electricity
Control 30 failure of case.Further, thread bush 50 is arranged on main shaft 40, thread bush 50 rotates to spray extremely with main shaft 40
Lubricating oil on main shaft 40 is pushed from 30 1 side of electric cabinet to 20 side of chassis cavity makes mist of oil that can not enter electricity by main shaft 40
It controls in case 30；Bearing pilot hole 13 towards electric cabinet 30 side upper cover be equipped with end cap 70, end cap 70 by chassis cavity 20 and electricity
It controls case 30 to seal off, there is gap, the gap between first port and end cap 70 and bearing 60 between end cap 70 and bearing 60
Connection.
There is inner hole, thread bush 50 is threaded through in the inner hole of end cap 70, the inner hole of thread bush 50 and end cap 70 on end cap 70
Hole wall between have small gap to guarantee the normal rotation of thread bush 50, in 50 rotary course of thread bush will injection to main shaft
Lubricating oil on 40 is pushed from 30 1 side of electric cabinet to 20 side of chassis cavity, so as to prevent lubricating oil from passing through thread bush 50
Gap between the inner hole of end cap 70 enters in electric cabinet 30, by the push effect of thread bush 50, makes to be ejected into main shaft
Mist of oil on 40 forms oil droplet and flows into oil return hole 11 along the gap between end cap 70 and bearing 60, and eventually by oil return hole
11 return in the reserve 21 of 20 lower part of chassis cavity.
In order to the lubricating oil for enabling the gap between end cap 70 and bearing 60 to flow down move smoothly through first port into
Enter in oil return hole 11, lubricating oil is avoided to accumulate at the first port of oil return hole 11, further, the inner wall of bearing pilot hole 13
On offer bowl configurations 14, bowl configurations 14 are connected to first port, by be arranged bowl configurations 14 effectively increase lubrication
The oil return speed of oil.
For sewing machine during working long hours, inside can accumulate amount of heat, and higher temperature will affect electric cabinet
The normal work and stabilization of each electric elements in 30.Therefore, it can fast and effeciently radiate to make sewing machine at work,
The sewing machine of the present embodiment is effectively reduced the thermal capacitance of casing, while being conducive to the release of heat, is reached by the wall thickness of reduction casing
To the effect of heat radiation.In addition the wall thickness for reducing casing can also reduce the dosage of material, achieve the purpose that save the cost.Such as
Shown in Fig. 5, radiation rib 80 is additionally provided on the casing of sewing machine, it is preferable that radiation rib 80 is distributed in rectangle grid structure
Casing end plate 10 is set towards on the side wall of electric cabinet 30.Radiation rib 80 can effectively increase the heat dissipation area of casing, mention
High heat dissipation effect guarantees the steady operation of each electric elements in electric cabinet 30 to reduce temperature rise.In addition, by the way that machine is thinned
The thickness of shell simultaneously radiation rib 80 is arranged on casing the conduction of vibration, effective protection sewing machine can be effectively reduced.
In order to further increase the heat dissipation effect of sewing machine.As shown in Fig. 2, sewing machine further include: the first fan 90 and
Two fans 100, the first fan 90 and the second fan 100 are mounted on main shaft 40 and are located in electric cabinet 30；Optionally, sewing machine
Motor 110 be arranged between the first fan 90 and the second fan 100, main shaft 40 is threaded through in motor 110, passes through the first fan
90 and 100 two fans of the second fan to the air in electric cabinet 30 carry out agitation form convection current, take away the heat in electric cabinet 30
Amount makes sewing machine keep lower temperature rise in long-term operating, guarantees the steady operation of each electric elements in electric cabinet 30.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. the sewing machine is arranged in a kind of sewing machine, including casing end plate (10), main shaft (40), the casing end plate (10)
It is described to seal off the chassis cavity (20) and the electric cabinet (30) between chassis cavity (20) and electric cabinet (30)
Main shaft (40) is rotationally threaded through on the casing end plate (10), which is characterized in that
The casing end plate (10) includes towards the first side wall of the electric cabinet (30) and towards the chassis cavity (20)
Second sidewall；
Wherein, it is offered oil return hole (11) on the casing end plate (10), the first port of the oil return hole (11) is located at described
To be connected to the default oil return position being located at the main shaft (40) on the first side wall, there is boss structure in the second sidewall
(12), the second port of the oil return hole (11) is located on the end face of the boss structure (12).
2. sewing machine according to claim 1, which is characterized in that the boss structure (12) is around the main shaft (40)
Annular convex platform.
3. sewing machine according to claim 1, which is characterized in that the oil return hole (11) is straight hole, in the casing
The lower part of chamber (20) is reserve (21)；
Wherein, there is default angle, so that the oil return hole (11) is by institute between the oil return hole (11) and the main shaft (40)
First port is stated to tilt to the second port towards the reserve (21).
4. sewing machine according to claim 1, which is characterized in that the sewing machine further include:
Thread bush (50) is set on the main shaft (40) to rotate with the main shaft (40), for that will spray to main shaft (40)
On lubricating oil from (30) one side of electric cabinet to the chassis cavity (20) side push；
Wherein, the first port and the thread bush (50) are correspondingly arranged and are located at the lower section of the thread bush (50).
5. sewing machine according to claim 4, which is characterized in that have bearing pilot hole on the casing end plate (10)
(13), it is provided with bearing (60) in the bearing pilot hole (13), the main shaft (40) passes through the bearing (60) rotationally
It is threaded through on the casing end plate (10)；
Wherein, the first port is located on the inner wall of the bearing pilot hole (13).
6. sewing machine according to claim 5, which is characterized in that the sewing machine further include:
End cap (70), the end cap (70) lid be located on the bearing pilot hole (13) with by the chassis cavity (20) with it is described
Electric cabinet (30) seals off, and has inner hole on the end cap (70), and the thread bush (50) is threaded through the end cap (70)
In inner hole；
Wherein, there is gap between the end cap (70) and the bearing (60), the first port and the end cap (70) and
Gap connection between the bearing (60).
7. sewing machine according to claim 5, which is characterized in that offered on the inner wall of the bearing pilot hole (13) recessed
It cheats structure (14), the bowl configurations (14) are connected to the first port.
8. sewing machine according to claim 1, which is characterized in that be provided with radiation rib on the casing of the sewing machine
(80)。
9. sewing machine according to claim 1, which is characterized in that the sewing machine further include:
First fan (90) and the second fan (100), first fan (90) and second fan (100) are mounted on described
On main shaft (40) and it is located in the electric cabinet (30).
10. sewing machine according to claim 9, which is characterized in that the sewing machine further include:
Motor (110), the main shaft (40) are threaded through in the motor (110)；
Wherein, first fan (90) and second fan (100) are located at the two sides of the motor (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802793.2A CN109468765A (en) | 2017-09-07 | 2017-09-07 | Sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710802793.2A CN109468765A (en) | 2017-09-07 | 2017-09-07 | Sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109468765A true CN109468765A (en) | 2019-03-15 |
Family
ID=65658331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710802793.2A Pending CN109468765A (en) | 2017-09-07 | 2017-09-07 | Sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109468765A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023747A (en) * | 2001-07-05 | 2003-01-24 | Toshiba Transport Eng Inc | Lubricating structure for bearing in motor for vehicle |
| JP2009041634A (en) * | 2007-08-08 | 2009-02-26 | Toyo Electric Mfg Co Ltd | Vehicular main motor bearing device |
| JP2011019306A (en) * | 2009-07-07 | 2011-01-27 | Toshiba Corp | Bearing device for rotary electric machine in rolling stock |
| CN104033579A (en) * | 2014-03-31 | 2014-09-10 | 南车株洲电力机车有限公司 | Transmission shaft sealing device |
| CN106906579A (en) * | 2017-04-28 | 2017-06-30 | 浙江中捷缝纫科技有限公司 | A kind of spindle motor mounting structure of sewing machine |
| CN207176255U (en) * | 2017-09-07 | 2018-04-03 | 浙江中捷缝纫科技有限公司 | Sewing machine |
-
2017
- 2017-09-07 CN CN201710802793.2A patent/CN109468765A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003023747A (en) * | 2001-07-05 | 2003-01-24 | Toshiba Transport Eng Inc | Lubricating structure for bearing in motor for vehicle |
| JP2009041634A (en) * | 2007-08-08 | 2009-02-26 | Toyo Electric Mfg Co Ltd | Vehicular main motor bearing device |
| JP2011019306A (en) * | 2009-07-07 | 2011-01-27 | Toshiba Corp | Bearing device for rotary electric machine in rolling stock |
| CN104033579A (en) * | 2014-03-31 | 2014-09-10 | 南车株洲电力机车有限公司 | Transmission shaft sealing device |
| CN106906579A (en) * | 2017-04-28 | 2017-06-30 | 浙江中捷缝纫科技有限公司 | A kind of spindle motor mounting structure of sewing machine |
| CN207176255U (en) * | 2017-09-07 | 2018-04-03 | 浙江中捷缝纫科技有限公司 | Sewing machine |
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