CN111720445A - Rolling module and chain belt of linear sliding rail - Google Patents
Rolling module and chain belt of linear sliding rail Download PDFInfo
- Publication number
- CN111720445A CN111720445A CN201910212459.0A CN201910212459A CN111720445A CN 111720445 A CN111720445 A CN 111720445A CN 201910212459 A CN201910212459 A CN 201910212459A CN 111720445 A CN111720445 A CN 111720445A
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- Prior art keywords
- edges
- hole
- edge
- belt body
- holes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3812—Ball cages formed of interconnected segments, e.g. chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3806—Details of interaction of cage and race, e.g. retention, centring
Abstract
The invention discloses a rolling module of a linear sliding rail and a chain belt. The belt body defines a long axis direction and includes two long side edges, two end edges, and four guide edges. The two long side edges are positioned at two opposite sides of the belt body and are parallel to the long axis direction, the two end edges are respectively positioned at two tail ends of the belt body, and each end edge is connected with the two long side edges through the two guide edges. The belt body is provided with a plurality of through holes, a through hole is arranged between any two adjacent positioning parts, and the through hole adjacent to any end edge is defined as a tail end through hole. In any end perforation and the end edge and two guiding edges adjacent to the end perforation, when the end perforation is orthographically projected towards the end edge to form a longitudinal projection area, the part of any guiding edge is covered by the longitudinal projection area, so that a safe distance can be kept between each end edge (or one end of the guiding edge connected with the end edge) and the corresponding long side edge.
Description
Technical Field
The present disclosure relates to linear sliding rails, and particularly to a rolling module and a chain belt for a linear sliding rail.
Background
The chain belt of the conventional linear sliding rail is substantially rectangular at any corner of the end thereof, so that the corner of the end of the chain belt is liable to rub or collide against other components at a turn during the operation of the conventional linear sliding rail, thereby causing damage to the chain belt and affecting the operation of the conventional linear sliding rail and the equipment mounted thereon.
The present inventors have considered that the above-mentioned drawbacks can be improved, and have conducted studies and applied scientific principles to provide the present invention which is designed reasonably and effectively to improve the above-mentioned drawbacks.
Disclosure of Invention
Embodiments of the present invention provide a rolling module and a chain belt of a linear guideway, which can effectively overcome the possible defects of the chain belt of the linear guideway.
The embodiment of the invention discloses a rolling module of a linear sliding rail, which comprises: a chain belt, comprising: a strip body, which is strip-shaped and is defined with a long axis direction, the strip body includes: two long side edges located on opposite sides of the belt body and both parallel to the long axis direction; two end edges respectively located at two ends of the belt body in the long axis direction; the two opposite sides of each end edge are respectively connected with the two long side edges through the two guide edges; wherein the belt body is formed with a plurality of through holes arranged at intervals along the long axis direction from one of the end edges toward the other end edge, and the through hole adjacent to any one of the end edges is defined as a tip through hole; wherein, in any one of the end through holes and the end edge and the two guide edges adjacent to the end through hole, when the end through hole is orthographically projected towards the end edge along the long axis direction to form a longitudinal projection area, a part of any one of the guide edges is covered by the longitudinal projection area; the positioning parts are formed on the belt body, and one through hole is formed between any two adjacent positioning parts; the rolling pieces are accommodated in the through holes of the chain belt in a rolling mode respectively, and any one rolling piece is clamped in the corresponding through hole by the two adjacent positioning parts.
Preferably, among any one of the end through holes and the end edge and the two guide edges adjacent to the end through hole, when the end through hole is orthographically projected toward the end edge along the long axis direction to form the longitudinal projection area, 10% to 30% of any one of the guide edges is covered by the longitudinal projection area.
Preferably, a distance between two of said long side edges defines a width direction; in any one of the end through holes and the long side edge and the guide edge on one side thereof, when the end through hole is orthographically projected toward the long side edge in the width direction to form a transverse projection area, 30% to 60% of the guide edge is covered by the transverse projection area.
Preferably, each of the through holes is a circular hole, and a radial connecting line is defined between a center of the end through hole and an end of the guide edge connected to the corresponding long side edge, among any one of the end through holes and an adjacent one of the guide edges, and an included angle between 10 degrees and 60 degrees is formed between the radial connecting line and the width direction.
Preferably, each of the guide edges is arcuate, and a center of each of the guide edges falls outside the belt body.
Preferably, in any one of the end through holes, the end edge adjacent to the end through hole, and the two guide edges, a circle center connecting line connecting two circle centers of the two guide edges is defined by the two guide edges, and the circle center connecting line and the end edge are respectively located on two opposite sides of the end through hole.
Preferably, each of the guiding edges is formed in a circular arc shape in any one of the end through holes and two adjacent guiding edges thereof, and the end through hole is located in a circular area defined by each of the guiding edges.
Preferably, the band body is not formed with any holes other than the plurality of perforations.
Preferably, the belt body is bent into an annular configuration, and the two end edges face each other, and the positioning portion at any one of the end edges defines an end positioning portion, and the rolling module further includes a link rolling member, and the link rolling member is rollably clamped between the two end positioning portions.
The embodiment of the invention also discloses a chain belt of the linear sliding rail, which comprises: a strip body, which is strip-shaped and is defined with a long axis direction, the strip body includes: two long side edges located on opposite sides of the belt body and both parallel to the long axis direction; two end edges respectively located at two ends of the belt body in the long axis direction; the two opposite sides of each end edge are respectively connected with the two long side edges through the two guide edges; wherein the belt body is formed with a plurality of through holes arranged at intervals along the long axis direction from one of the end edges toward the other end edge, and the through hole adjacent to any one of the end edges is defined as a tip through hole; wherein, in any one of the end through holes and the end edge and the two guide edges adjacent to the end through hole, when the end through hole is orthographically projected towards the end edge along the long axis direction to form a longitudinal projection area, a part of any one of the guide edges is covered by the longitudinal projection area; and the positioning parts are formed on the belt body, and one perforation is arranged between any two adjacent positioning parts.
In summary, in the rolling module and the chain belt of the linear guideway disclosed in the embodiments of the present invention, a portion of any one of the guiding edges of the belt body is limited to be covered by the longitudinal projection area, so that a safety distance is maintained between each end edge (or one end of the guiding edge connected to the end edge) and the corresponding long side edge, and the safety distance is greater than a distance between the corresponding end through hole and any one of the long side edges, so that the chain belt contacts other members with the rolling member at the turning position in the linear guideway, thereby preventing the end of the belt body from being rubbed and collided, and effectively maintaining the operation of the linear guideway and the equipment assembled by the linear guideway.
For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.
Drawings
Fig. 1 is a schematic perspective view of a linear slide rail according to an embodiment of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a perspective view of the scrolling module of fig. 2.
Fig. 4 is a schematic plan view of fig. 3.
Fig. 5 is a partially enlarged view of a portion V of fig. 4.
Fig. 6 is a schematic view of fig. 5 with the rolling elements omitted.
Fig. 7 is a top view of fig. 5.
Fig. 8 is a schematic view of fig. 7 with the rolling elements omitted.
Detailed Description
Please refer to fig. 1 to 8, which are exemplary embodiments of the present invention, and it should be noted that, in the embodiments, the related numbers and shapes mentioned in the accompanying drawings are only used for describing the embodiments of the present invention in detail, so as to facilitate the understanding of the contents of the present invention, and not for limiting the scope of the present invention.
As shown in fig. 1 and fig. 2, the present embodiment discloses a linear guideway, which is illustrated as a standard linear guideway in the present embodiment, but the present invention is not limited thereto. For example, in other embodiments not shown in the present disclosure, the linear guideway may be a micro linear guideway. The linear slide rail includes a guide rail 200, a slider 300 slidably disposed on the guide rail 200, a plurality of circulating members 400 disposed on the slider 300, a plurality of rolling modules 100 respectively disposed on the circulating members 400 and passing through the slider 300, and two end caps 500 respectively disposed on opposite ends of the slider 300 and slidably disposed on the guide rail 200.
It should be noted that, in the embodiment, the rolling module 100 is described as being collocated with a plurality of components, but in other embodiments not shown in the present invention, the rolling module 100 may also be applied (for example, sold) separately or collocated with other components, and is not limited to be carried by the embodiment. Since the configurations of the plurality of scroll modules 100 are substantially the same or symmetrical in the present embodiment, only the configuration of a single scroll module 100 will be described below.
As shown in fig. 3 and 4, the rolling module 100 includes a chain belt 10, a plurality of rolling elements 20 mounted on the chain belt 10, and a chain rolling element 30 clamped between both ends of the chain belt 10. In the embodiment, the chain belt 10 is described as being associated with the rollers 20 and the chain rollers 30, but in other embodiments not shown in the present invention, the chain belt 10 may be used alone (for example, sold) or associated with other components, and is not limited to the embodiment.
As shown in fig. 4 to 6, the chain belt 10 includes a belt body 1 and a plurality of positioning portions 2 formed on the belt body 1, and the belt body 1 and the plurality of positioning portions 2 are described as a single-piece structure integrally formed in this embodiment, but the invention is not limited thereto. Wherein, the belt body 1 is strip-shaped and defines a long axis direction L; that is, when the above-described belt body 1 is bent into an annular configuration, the long axis direction L is also annular. Furthermore, the belt body 1 comprises (the outer edge of) two long side edges 11, two end edges 12 and four guiding edges 13.
In more detail, as shown in fig. 7 and 8, the two long side edges 11 are respectively located on opposite sides of the belt body 1 and are parallel to the long axis direction L, and a distance between the two long side edges 11 defines a width direction W perpendicular to the long axis direction L. The two end edges 12 are respectively located at two ends of the belt body 1 in the longitudinal direction L, and opposite sides of each end edge 12 are respectively connected to the two long side edges 11 through two guide edges 13.
The belt body 1 has a plurality of through holes 14 (see fig. 3) spaced along the long axis direction L from one end edge 12 to the other end edge 12, and each through hole 14 is a circular hole in the present embodiment, and the through hole 14 adjacent to any one end edge 12 is defined as an end through hole 14 a. In this embodiment, the belt body 1 is preferably not formed with any holes other than the through holes 14, so as to effectively strengthen the structure of the belt body 1 and further prolong the service life of the chain belt 10. That is, any tape body having holes other than the through holes is not the tape body 1 of the present embodiment.
The plurality of positioning portions 2 are arranged at intervals in the long axis direction L on the belt body 1, and one perforation 14 is provided between any two adjacent positioning portions 2. Further, the belt body 1 is bent in an annular configuration in the present embodiment such that the two end edges 12 of the belt body 1 face each other, and one positioning portion 2 is provided on each end edge 12, and the positioning portion 2 located at any one of the end edges 12 is defined as a tip positioning portion 2 a.
The plurality of rolling members 20 are respectively rollably received in the plurality of through holes 14 of the link belt 10, and any one of the rolling members 20 is held between the two adjacent positioning portions 2 in the corresponding through hole 14, and the linking rolling member 30 is rollably held between the two end positioning portions 2 a. In the present embodiment, the rolling member 20 (or the chained rolling member 30) is described as a ball, but in other embodiments not shown in the present invention, the rolling member 20 (or the chained rolling member 30) may be a roller, and the positioning portion 2 is a structure corresponding to the roller in structure.
It should be noted that, in order to effectively prevent the end of the chain belt 10 from rubbing or colliding with the turning point in the linear guideway, the belt body 1 of the embodiment is formed with the plurality of guiding edges 13, and the plurality of guiding edges 13 should meet the following primary structural limitations: in any of the end through holes 14a, the end edge 12 adjacent to the end through hole 14a, and the two guide edges 13, when the end through hole 14a is orthographically projected toward the end edge 12 along the long axis direction L to form a longitudinal projection area, a portion of any of the guide edges 13 is covered by the longitudinal projection area, and preferably, 10% to 30% of any of the guide edges 13 is covered by the longitudinal projection area, but the invention is not limited thereto.
As described above, the plurality of guiding edges 13 of the belt body 1 are limited by the above-mentioned primary structure, so that each end edge 12 (or one end of the guiding edge 13 connected to the end edge 12) can keep a safe distance with the corresponding long side edge 11 in the width direction W, and the safe distance is greater than the distance between the corresponding end through hole 14a (or the rolling member 20) and any long side edge 11, so that the turning position of the chain belt 10 in the linear slide rail can contact other components with the rolling member 20 (and the chain rolling member 30), thereby preventing the end (or the end edge 12) of the belt body 1 from generating friction and collision, and effectively maintaining the operation of the linear slide rail and the equipment assembled by the linear slide rail.
Furthermore, in this embodiment, in order to further improve the life or stability of the chain belt 10, the plurality of guiding edges 13 of the belt body 1 may further have at least one of the following secondary structural limitations, and the primary structural limitation of the guiding edge 13 may be matched with the following at least one secondary structural limitation, so that the chain belt 10 can more effectively avoid the friction and collision of the end (or the end edge 12) of the belt body 1 at the turning position in the linear guideway, but the invention is not limited thereto. That is, in other embodiments not shown in the present disclosure, the belt body 1 may not include any secondary structural limitation described below.
Specifically, in any one of the end through holes 14a and the long side edge 11 and the guide edge 13 on one side thereof, when the end through hole 14a is orthographically projected toward the long side edge 11 along the width direction W to form a transverse projection area, a portion of the guide edge 13 is covered by the transverse projection area, and preferably, 30% to 60% of the guide edge 13 is covered by the transverse projection area, but the invention is not limited thereto.
Furthermore, in any one of the end through holes 14a and an adjacent one of the guiding edges 13, a radial connecting line LC14a is defined between a center C14a of the end through hole 14a and the end of the guiding edge 13 connected to the corresponding long side edge 11, and an included angle α between 10 degrees and 60 degrees (e.g., the included angle α is 10 degrees to 25 degrees) is formed between the radial connecting line LC14a and the width direction W.
In addition, each guiding edge 13 is preferably circular arc-shaped in the embodiment, and a center C13 of each guiding edge 13 falls outside the belt body 1. In other words, in any one of the end through holes 14a and the two adjacent guide edges 13, the end through hole 14a is located in a circular area defined by each guide edge 13.
More specifically, in any one of the end through hole 14a and the adjacent end edge 12 and two guiding edges 13, two guiding edges 13 define a circle center connecting line LC13 connecting two circle centers C13 of the end through hole and the adjacent end edge 12, and the circle center connecting line LC13 and the end edge 12 are respectively located on two opposite sides of the end through hole 14 a.
[ technical effects of embodiments of the present invention ]
In summary, in the rolling module of the linear guideway and the chain belt disclosed in the embodiments of the present invention, a portion of any one of the guiding edges of the belt body is limited to be covered by the longitudinal projection area, so that each end edge (or one end of the guiding edge connected to the end edge) can have a safety distance with the corresponding long side edge, and the safety distance is greater than a distance between the corresponding end through hole (or the rolling member) and any one of the long side edges, so that the chain belt contacts other members with the rolling member (and the link rolling member) at the turning position in the linear guideway, thereby preventing the end (or the end edge) of the belt body from being rubbed and collided, and effectively maintaining the operation of the linear guideway and the equipment mounted thereon.
Further, the rolling module and the chain belt of the linear sliding rail disclosed in the embodiments of the present invention can further have other structural limitations on the plurality of guide edges of the belt body (for example, the guide edges are partially covered by the transverse projection area, an included angle between 10 degrees and 60 degrees is formed between the radial connecting line and the width direction, the center of a circle of the guide edges is located outside the belt body, the center connecting line and the adjacent end edge are respectively located on the opposite sides of the corresponding end through hole, or the end through hole is located in the circular area defined by the extension of the corresponding guide edge), so that the chain belt can more effectively avoid friction and collision at the end (or the end edge) of the belt body at the turning position in the linear sliding rail.
The disclosure is only a preferred embodiment of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and drawings are included in the scope of the invention.
Claims (10)
1. A rolling module of a linear slide, the rolling module comprising:
a chain belt, comprising:
a strip body, which is strip-shaped and is defined with a long axis direction, the strip body includes:
two long side edges located on opposite sides of the belt body and both parallel to the long axis direction;
two end edges respectively located at two ends of the belt body in the long axis direction; and
the two opposite sides of each end edge are respectively connected with the two long side edges through the two guide edges;
wherein the belt body is formed with a plurality of through holes arranged at intervals along the long axis direction from one of the end edges toward the other end edge, and the through hole adjacent to any one of the end edges is defined as a tip through hole; wherein, in any one of the end through holes and the end edge and the two guide edges adjacent to the end through hole, when the end through hole is orthographically projected towards the end edge along the long axis direction to form a longitudinal projection area, a part of any one of the guide edges is covered by the longitudinal projection area; and
the positioning parts are formed on the belt body, and one through hole is formed between any two adjacent positioning parts; and
the rolling pieces are accommodated in the through holes of the chain belt in a rolling mode respectively, and any one rolling piece is clamped in the corresponding through hole by the two adjacent positioning parts.
2. The rolling module of claim 1, wherein, of any one of the end perforations and the end edge and the two guide edges adjacent thereto, when the end perforations are orthographically projected toward the end edge along the long axis direction to form the longitudinal projection area, 10% to 30% of any one of the guide edges is covered by the longitudinal projection area.
3. The rolling module of claim 1, wherein a distance between two of said long side edges defines a width direction; in any one of the end through holes and the long side edge and the guide edge on one side thereof, when the end through hole is orthographically projected toward the long side edge in the width direction to form a transverse projection area, 30% to 60% of the guide edge is covered by the transverse projection area.
4. The rolling module of claim 3, wherein each of the through holes is a circular hole, and a radial connecting line is defined between a center of the through hole and the end of the guiding edge connected to the corresponding long side edge in any one of the end through holes and an adjacent one of the guiding edges, and an included angle between the radial connecting line and the width direction is 10 to 60 degrees.
5. The rolling module of claim 1, wherein each of the guide edges is radiused and a center of each of the guide edges is located outside of the belt body.
6. The rolling module of claim 5, wherein, in any one of the end through holes and the adjacent end edge and the two guide edges, the two guide edges define a circle center connecting line connecting two circle centers of the end through holes, and the circle center connecting line and the end edge are respectively located on two opposite sides of the end through hole.
7. The rolling module of claim 1, wherein each of the guiding edges is rounded in any one of the end through holes and two adjacent guiding edges thereof, and the end through hole is located in a circular area defined by each of the guiding edges.
8. The rolling module of claim 1, wherein the belt body is not formed with any holes other than the plurality of perforations.
9. The rolling module of claim 1, wherein the belt body is bent into an annular configuration, and the two end edges face each other, and the positioning portion at either end edge defines an end positioning portion, the rolling module further comprising a link roller, and the link roller is rollably sandwiched between the two end positioning portions.
10. A link belt of a linear slide rail, the link belt comprising:
a strip body, which is strip-shaped and is defined with a long axis direction, the strip body includes:
two long side edges located on opposite sides of the belt body and both parallel to the long axis direction;
two end edges respectively located at two ends of the belt body in the long axis direction; and
the two opposite sides of each end edge are respectively connected with the two long side edges through the two guide edges;
wherein the belt body is formed with a plurality of through holes arranged at intervals along the long axis direction from one of the end edges toward the other end edge, and the through hole adjacent to any one of the end edges is defined as a tip through hole; wherein, in any one of the end through holes and the end edge and the two guide edges adjacent to the end through hole, when the end through hole is orthographically projected towards the end edge along the long axis direction to form a longitudinal projection area, a part of any one of the guide edges is covered by the longitudinal projection area; and
and the positioning parts are formed on the belt body, and one perforation is arranged between any two adjacent positioning parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212459.0A CN111720445B (en) | 2019-03-20 | 2019-03-20 | Rolling module and chain belt of linear sliding rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212459.0A CN111720445B (en) | 2019-03-20 | 2019-03-20 | Rolling module and chain belt of linear sliding rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111720445A true CN111720445A (en) | 2020-09-29 |
| CN111720445B CN111720445B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212459.0A Active CN111720445B (en) | 2019-03-20 | 2019-03-20 | Rolling module and chain belt of linear sliding rail |
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| Country | Link |
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| CN (1) | CN111720445B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116857279A (en) * | 2023-08-23 | 2023-10-10 | 智龙直线(瑞金)科技有限公司 | Rolling element flexible retainer assembling device and assembling method |
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| JP2000192963A (en) * | 1998-12-28 | 2000-07-11 | Thk Co Ltd | Rolling body connector |
| JP2007162864A (en) * | 2005-12-15 | 2007-06-28 | Nsk Ltd | Linear motion guide device and its manufacturing method |
| CN108350937A (en) * | 2015-12-15 | 2018-07-31 | Thk株式会社 | Motion guide device |
| CN209892629U (en) * | 2019-03-20 | 2020-01-03 | 精浚科技股份有限公司 | Rolling module and chain belt of linear sliding rail |
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2019
- 2019-03-20 CN CN201910212459.0A patent/CN111720445B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1214108A (en) * | 1996-12-24 | 1999-04-14 | 蒂业技凯株式会社 | Endless retaining for guiding device and method for mfg. same |
| JP2000192963A (en) * | 1998-12-28 | 2000-07-11 | Thk Co Ltd | Rolling body connector |
| JP2007162864A (en) * | 2005-12-15 | 2007-06-28 | Nsk Ltd | Linear motion guide device and its manufacturing method |
| CN108350937A (en) * | 2015-12-15 | 2018-07-31 | Thk株式会社 | Motion guide device |
| CN209892629U (en) * | 2019-03-20 | 2020-01-03 | 精浚科技股份有限公司 | Rolling module and chain belt of linear sliding rail |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116857279A (en) * | 2023-08-23 | 2023-10-10 | 智龙直线(瑞金)科技有限公司 | Rolling element flexible retainer assembling device and assembling method |
| CN116857279B (en) * | 2023-08-23 | 2023-11-28 | 智龙直线(瑞金)科技有限公司 | Rolling element flexible retainer assembling device and assembling method |
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| Publication number | Publication date |
|---|---|
| CN111720445B (en) | 2022-02-01 |
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