CN203585057U - Connection structure of sewing machine connection rod - Google Patents
Connection structure of sewing machine connection rod Download PDFInfo
- Publication number
- CN203585057U CN203585057U CN201320796539.3U CN201320796539U CN203585057U CN 203585057 U CN203585057 U CN 203585057U CN 201320796539 U CN201320796539 U CN 201320796539U CN 203585057 U CN203585057 U CN 203585057U
- Authority
- CN
- China
- Prior art keywords
- bearing
- connection
- sewing machine
- sleeve
- rod
- 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
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The utility model provides a connection structure of a sewing machine connection rod, belongs to the technical field of machinery, and solves the technical problems of an existing sewing machine connection rod that since relative friction is generated because the connection rod is hinged and positioned by enabling a bolt to penetrate through the connection rod, noise is produced in the operation process. According to the connection structure of the sewing machine connection rod, the connection rod comprises a rod body and connection sleeves located at the two ends of the rod body; the connection structure comprises a bearing and a bolt; the bolt comprises a head, a sleeve connection part and a thread part with a thread; the bolt penetrates through a connection sleeve and the thread part penetrates through the connection sleeve; the sleeve connection part is located in the connection sleeve and a bearing sleeve is fixed on the sleeve connection part; the bearing is located between the bearing sleeve and the connection sleeve; an inner ring of the bearing leans against the bearing sleeve; an outer ring of the bearing leans against the connection sleeve. The connection structure of the sewing machine connection rod has the advantages that the rotation of the connection rod is smooth and the friction caused by the rotation of the connection rod is reduced.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to the linkage structure of a kind of linkage structure of connecting rod, particularly a kind of linking sewing machine.
Background technique
Along with the development of sewing machine technique, in industrial sewing machines, in order to improve sewing machine operating efficiency, advance the speed up of motion speed always, along with the raising of motion speed, also larger to the relative movement between sewing thermomechanical components.
Thering is feeding connecting rod and lifting the bar linkage structures such as tooth connecting rod on sewing machine, connecting rod on current sewing machine all passes connecting rod by bolt rod hinge connection is located, meeting when connecting rod rotates between connecting rod and bolt produces relative friction, when turning round, sewing machine can produce noise, after long time running, can between bolt and connecting rod, produce metal fragment, increase the resistance that connecting rod rotates, connecting rod be rotated not smooth, accelerate the wearing and tearing of connecting rod and bolt simultaneously, reduced working life.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of linkage structure of linking sewing machine, and the technical problem that the utility model solves is to make connecting rod rotation more smooth.
The purpose of this utility model can realize by following technical proposal: a kind of linkage structure of linking sewing machine, described connecting rod comprises the body of rod and is positioned at the connecting sleeve at body of rod two ends, it is characterized in that, this linkage structure comprises bearing and bolt, described bolt comprises head, the threaded screw section of belled part and tool, described bolt is through connecting sleeve, described screw section passes connecting sleeve, described belled position is in connecting sleeve, on described belled part, be fixed with bearing housing, described bearing is between bearing housing and connecting sleeve, the inner ring of described bearing and bearing housing against, the outer ring of described bearing and connecting sleeve against.
By between the connecting sleeve at connecting rod and bolt, bearing being set, reduce the resistance that connecting rod is subject to when rotating, connecting rod is rotated more smooth, reduced friction when connecting rod rotates, reduce sewing machine and moved the noise that is, increased the working life of connecting rod.
In the linkage structure of above-mentioned linking sewing machine, between described head and belled part, be provided with lug boss, the diameter of described lug boss is identical with bearing housing diameter, described bearing housing and lug boss against.Lug boss is for positioning shaft bearing sleeve.
In the linkage structure of above-mentioned linking sewing machine, one end of described bearing and head abuts, the other end of described bearing flushes with connecting sleeve.Bearing will be positioned at connecting sleeve behind connecting rod location, compact structure during connecting rod assembling.
In the linkage structure of above-mentioned linking sewing machine, it between described bearing housing and belled part, is interference fit.
As preferably, in the linkage structure of above-mentioned linking sewing machine, described bearing is needle bearing.
As another kind of situation, in the linkage structure of above-mentioned linking sewing machine, described bearing is deep groove ball bearing.
In the linkage structure of above-mentioned linking sewing machine, on described connecting sleeve, there is at least one lubrication hole, described lubrication hole is towards the side face of bearing outer ring.Lubricant oil enters between bearing and connecting sleeve by lubrication hole, reduces the friction between bearing and connecting sleeve.
Compared with prior art, the linkage structure of this linking sewing machine has the resistance that minimizing connecting rod is subject to when rotating, and connecting rod is rotated more smooth, has reduced friction when connecting rod rotates, reduce sewing machine and moved the noise that is, increased the advantage in the working life of connecting rod.
Accompanying drawing explanation
Fig. 1 is the perspective view of the linkage structure of this linking sewing machine.
Fig. 2 is the perspective view that in the present embodiment one, bolt is connected with bearing.
Fig. 3 is the side-looking structural representation of bolt in the present embodiment one.
In figure, 11, connecting rod; 12, the body of rod; 13, connecting sleeve; 131, lubrication hole; 21, bolt; 22, head; 23, belled part; 231, bearing housing; 24, screw section; 25, lug boss; 31, bearing.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
A linkage structure for linking sewing machine, as shown in Figure 1, connecting rod 11 comprises the body of rod 12 and the connecting sleeve 13 that is positioned at the body of rod 12 two ends, has at least one lubrication hole 131 on connecting sleeve 13, in the present embodiment one, lubrication hole 131 has one.Lubricant oil enters between bearing 31 and connecting sleeve 13 by lubrication hole 131, reduces the friction between bearing 31 and connecting sleeve 13.
As shown in Figure 1 to Figure 3, this linkage structure comprises bearing 31 and bolt 21, bolt 21 comprises the threaded screw section 24 of head 22, belled part 23 and tool, bolt 21 is through connecting sleeve 13, screw section 24 passes connecting sleeve 13, belled part 23 is positioned at connecting sleeve 13, is fixed with bearing housing 231 on belled part 23, between bearing housing 231 and belled part 23, is interference fit.Between head 22 and belled part 23, be provided with lug boss 25, the diameter of lug boss 25 is identical with bearing housing 231 diameters, bearing housing 231 and lug boss 25 against.Lug boss 25 is for positioning shaft bearing sleeve 231.
As depicted in figs. 1 and 2, bearing 31 is between bearing housing 231 and connecting sleeve 13, and the present embodiment one middle (center) bearing 31 is needle bearing.The inner ring of bearing 31 and bearing housing 231 against, the outer ring of bearing 31 and connecting sleeve 13 against.One end of bearing 31 and head 22 against, the other end of bearing 31 flushes with connecting sleeve 13.Lubrication hole 131 is towards the side face of bearing 31 outer rings, and bearing 31 is positioned at connecting sleeve 13 after connecting rod 11 is located, compact structure when connecting rod 11 assembles.
By bearing 31 being set between the connecting sleeve 13 at connecting rod 11 and bolt 21, reduce the resistance that connecting rod 11 is subject to when rotating, connecting rod 11 is rotated more smooth, reduced friction when connecting rod 11 rotates, reduce sewing machine and moved the noise that is, increased the working life of connecting rod 11.
Embodiment two
The present embodiment is basic identical with embodiment one structure and principle, and different place is: bearing is deep groove ball bearing.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used connecting rod 11 herein; The body of rod 12; Connecting sleeve 13; Lubrication hole 131; Bolt 21; Head 22; Belled part 23; Screw section 24; Lug boss 25; Bearing 31 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (7)
1. the linkage structure of a linking sewing machine, described connecting rod (11) comprises the body of rod (12) and is positioned at the connecting sleeve (13) at the body of rod (12) two ends, it is characterized in that, this linkage structure comprises bearing (31) and bolt (21), described bolt (21) comprises head (22), belled part (23) and the threaded screw section of tool (24), described bolt (21) is through connecting sleeve (13), described screw section (24) passes connecting sleeve (13), described belled part (23) is positioned at connecting sleeve (13), on described belled part (23), be fixed with bearing housing (231), described bearing (31) is positioned between bearing housing (231) and connecting sleeve (13), the inner ring of described bearing (31) and bearing housing (231) against, the outer ring of described bearing (31) and connecting sleeve (13) against.
2. the linkage structure of linking sewing machine according to claim 1, is characterized in that, described bearing (31) is needle bearing.
3. the linkage structure of linking sewing machine according to claim 1, is characterized in that, described bearing (31) is deep groove ball bearing.
4. according to the linkage structure of the linking sewing machine described in claim 1 or 2 or 3, it is characterized in that, on described connecting sleeve (13), have at least one lubrication hole (131), described lubrication hole (131) is towards the side face of bearing (31) outer ring.
5. according to the linkage structure of the linking sewing machine described in claim 1 or 2 or 3, it is characterized in that, between described head (22) and belled part (23), be provided with lug boss (25), the diameter of described lug boss (25) is identical with bearing housing (231) diameter, described bearing housing (231) and lug boss (25) against.
6. according to the linkage structure of the linking sewing machine described in claim 1 or 2 or 3, it is characterized in that, one end of described bearing (31) and head (22) against, the other end of described bearing (31) flushes with connecting sleeve (13).
7. according to the linkage structure of the linking sewing machine described in claim 1 or 2 or 3, it is characterized in that, is interference fit between described bearing housing (231) and belled part (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796539.3U CN203585057U (en) | 2013-12-05 | 2013-12-05 | Connection structure of sewing machine connection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796539.3U CN203585057U (en) | 2013-12-05 | 2013-12-05 | Connection structure of sewing machine connection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585057U true CN203585057U (en) | 2014-05-07 |
Family
ID=50582987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320796539.3U Expired - Fee Related CN203585057U (en) | 2013-12-05 | 2013-12-05 | Connection structure of sewing machine connection rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585057U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193391A (en) * | 2018-03-05 | 2018-06-22 | 苏州强逸机械有限公司 | A kind of crank connecting link |
-
2013
- 2013-12-05 CN CN201320796539.3U patent/CN203585057U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193391A (en) * | 2018-03-05 | 2018-06-22 | 苏州强逸机械有限公司 | A kind of crank connecting link |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203585057U (en) | Connection structure of sewing machine connection rod | |
| CN205533740U (en) | Diesel engine's bent axle assembly | |
| CN204164159U (en) | A kind of engine cam thrust device | |
| CN104214206B (en) | A kind of engine cam thrust brake | |
| CN203067708U (en) | Crankshaft and connecting rod mechanism with crankshaft of eccentric disc combined structure | |
| CN205745177U (en) | A kind of injection pump timing gears | |
| CN203161799U (en) | Stepped gear shaft | |
| CN209430711U (en) | Drive axle reducer | |
| CN203892376U (en) | Self-lubricating bearing steel bush | |
| CN102384161A (en) | High-strength abrasion-resistant bearing | |
| CN103291770B (en) | A kind of Hooke's joint without needle roller | |
| CN204512168U (en) | Single-acting Reciprocatin pump power end structure | |
| CN205315497U (en) | Wear -resisting type gear bush | |
| CN205477815U (en) | Exhaust rocker arm's oiling mechanism for automobile | |
| CN203463618U (en) | Gear bushing | |
| CN205401466U (en) | Bearing spacer sleeve | |
| CN205025929U (en) | Loose rib bearing | |
| CN202867537U (en) | Knuckle bearing for carrying out transition joint on connecting rod | |
| CN203783677U (en) | Crankshaft and connecting rod mechanism | |
| CN205383187U (en) | Wear -resistant shaft sleeve | |
| CN201372823Y (en) | Lower rocker arm of motorcycle engine | |
| CN201475165U (en) | Oscillating bearing | |
| CN207437335U (en) | A kind of rotor external supporting structure of plunger pump | |
| CN205315630U (en) | Swing arm drive mechanism | |
| CN206175611U (en) | Motorcycle shift system driven gear and main shaft constructs with driven gear set stay knot thereof |
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: 20140507 Termination date: 20211205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |