CN212868179U - Powder metallurgy combined positioning bearing for sewing machine - Google Patents
Powder metallurgy combined positioning bearing for sewing machine Download PDFInfo
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- CN212868179U CN212868179U CN202020675993.3U CN202020675993U CN212868179U CN 212868179 U CN212868179 U CN 212868179U CN 202020675993 U CN202020675993 U CN 202020675993U CN 212868179 U CN212868179 U CN 212868179U
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- bearing
- ring
- powder metallurgy
- sewing machine
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Abstract
The utility model discloses a powder metallurgy combination location bearing for sewing machine, combination location bearing contains race ring and bearing frame, a serial communication port, the bearing frame upper end is provided with circular arc type bearing inner race, the bearing frame lower extreme is provided with positioner, the positioner both sides respectively set up a screw hole, bearing inner race central point puts and is provided with round shape hole II, the race ring sets up in the circle shape hole II of bearing inner race, the race ring is for having the cylinder of circular port I. The utility model discloses novel structure, design benefit utilizes the principle that race ring and bearing inner race clearance fit can be automatic aligning, reinforcing lubricity degree, and the reduction friction is thereby reduced the characteristics of vibration.
Description
Technical Field
The utility model relates to a positioning bearing's technical field, concretely relates to powder metallurgy combination positioning bearing for sewing machine.
Background
The full-automatic sewing machine is widely applied to production, the good performance of full automation is widely recognized, parts in the full-automatic sewing machine are required to be simplified and reliable, the bearing selection refers to the requirement, the abrasion degree of the bearing can be improved according to the requirement, however, the common positioning bearing is integrally prepared through machining, the positioning bearing cannot be aligned, the motor is matched to drive the central shaft to rotate and be linked with the gear in the using process, the inner ring of the positioning bearing is subjected to unilateral abrasion to generate vibration, and the inner ring is extremely difficult to repair after abrasion and needs to be replaced in a whole set.
For this reason, a new technical solution is needed to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
To the above circumstances, but the location bearing of current sewing machine usefulness is not aligning, has unilateral wearing and tearing technical problem, the utility model provides a powder metallurgy combination location bearing for sewing machine.
The utility model adopts the technical proposal that:
the utility model provides a powder metallurgy combination location bearing for sewing machine, combination location bearing contains race ring and bearing frame, its characterized in that, the bearing frame upper end is provided with circular arc type bearing inner race, the bearing frame lower extreme is provided with positioner, the positioner both sides respectively set up a screw hole, bearing inner race central point puts and is provided with round hole II, the race ring sets up in bearing inner race's round hole II, the race ring is for the cylinder that has circular port I.
Furthermore, the positioning device and the arc-shaped bearing outer ring are integrally prepared through powder metallurgy.
Furthermore, the circular hole I of the bearing ring and the ring-shaped hole II of the bearing outer ring are concentric circles.
Furthermore, the diameter of a ring-shaped hole II of the bearing outer ring is larger than that of a circular hole I of the bearing ring.
Furthermore, the bearing ring and the bearing outer ring are in clearance fit.
The utility model has the advantages that:
the utility model discloses novel structure, design benefit utilizes the principle that race ring and bearing inner race clearance fit can be automatic aligning, reinforcing lubricity degree, and the reduction friction is thereby reduced the characteristics of vibration.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the bearing seat of the present invention.
Fig. 3 is a schematic structural diagram of the bearing ring of the present invention.
Wherein: 1. combination directional bearing, 2, race, 201, circular port I, 3, bearing frame, 4, bearing inner race, 401, circular port II, 5, positioner, 6, screw hole.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1-3, a powder metallurgy combined positioning bearing for a sewing machine, the combined positioning bearing 1 comprises a bearing ring 2 and a bearing seat 3, an arc-shaped bearing outer ring 4 is arranged at the upper end of the bearing seat 3, a positioning device 5 is arranged at the lower end of the bearing seat 3, a threaded hole 6 is respectively arranged at each of two sides of the positioning device 5, a circle-shaped hole ii 401 is arranged at the center of the bearing outer ring 4, the bearing ring 2 is arranged in the circle-shaped hole ii 401 of the bearing outer ring 4, and the bearing ring 2 is a cylinder with a circular hole i 201.
The positioning device 5 and the arc-shaped bearing outer ring 4 are integrally prepared through powder metallurgy.
The circular hole I201 of the bearing ring 2 and the circular hole II 401 of the bearing outer ring 4 are concentric circles.
The diameter of the ring-shaped hole II 401 of the bearing outer ring 4 is larger than that of the circular hole I201 of the bearing ring 2.
The bearing ring 2 is in clearance fit with the bearing outer ring 4.
In the sewing machine, the center pin passes in the middle of the circular port I201 on the race 2 of combination location bearing 1, utilizes the clearance fit of race 2 and bearing inner race 4, reaches the purpose of automatic aligning, and combination location bearing 1 is coupled connection with the center pin, and combination location bearing 1 passes through positioner 5 on the bearing frame 3, fixes combination location bearing 1 on frame one side.
The specific use process is that the sewing machine motor starts to drive the central shaft, so that the combined positioning bearing 1 automatically centers the central shaft, and is linked with the gear to play a lubricating role, and the friction is reduced, so that the vibration is reduced.
Claims (5)
1. The utility model provides a powder metallurgy combination location bearing for sewing machine, combination location bearing contains race ring and bearing frame, its characterized in that, the bearing frame upper end is provided with circular arc type bearing inner race, the bearing frame lower extreme is provided with positioner, the positioner both sides respectively set up a screw hole, bearing inner race central point puts and is provided with round hole II, the race ring sets up in bearing inner race's round hole II, the race ring is for the cylinder that has circular port I.
2. The powder metallurgy combined positioning bearing for the sewing machine as claimed in claim 1, wherein the positioning device and the arc-shaped bearing outer ring are integrally prepared through powder metallurgy.
3. The powder metallurgy combined positioning bearing for the sewing machine as claimed in claim 1, wherein the circular hole I of the bearing ring and the ring-shaped hole II of the bearing outer ring are concentric circles.
4. The powder metallurgy combined positioning bearing for the sewing machine as claimed in claim 3, wherein the diameter of the ring-shaped hole II of the bearing outer ring is larger than that of the circular hole I of the bearing ring.
5. The powder metallurgy combined positioning bearing for the sewing machine according to claim 1, wherein the bearing ring and the bearing outer ring are in clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020675993.3U CN212868179U (en) | 2020-04-28 | 2020-04-28 | Powder metallurgy combined positioning bearing for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020675993.3U CN212868179U (en) | 2020-04-28 | 2020-04-28 | Powder metallurgy combined positioning bearing for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868179U true CN212868179U (en) | 2021-04-02 |
Family
ID=75186753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020675993.3U Active CN212868179U (en) | 2020-04-28 | 2020-04-28 | Powder metallurgy combined positioning bearing for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212868179U (en) |
-
2020
- 2020-04-28 CN CN202020675993.3U patent/CN212868179U/en active Active
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