CN214742774U - Linear guide rail with excellent bearing performance - Google Patents
Linear guide rail with excellent bearing performance Download PDFInfo
- Publication number
- CN214742774U CN214742774U CN202120589885.9U CN202120589885U CN214742774U CN 214742774 U CN214742774 U CN 214742774U CN 202120589885 U CN202120589885 U CN 202120589885U CN 214742774 U CN214742774 U CN 214742774U
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- China
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- linear guide
- circular arc
- arc raceway
- raceway
- guide rail
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Abstract
The utility model discloses a linear guide that bearing capacity is good, including the linear guide body, the both sides face upper portion of linear guide body is equipped with left trapezoidal face and right trapezoidal face respectively, be equipped with on the trapezoidal face of a left side two upper left circular arc raceways and two left lower circular arc raceways, be equipped with on the trapezoidal face of the right side two upper right circular arc raceways and two right lower circular arc raceways, upper left circular arc raceway and upper right circular arc raceway symmetry each other, circular arc raceway and right lower circular arc raceway symmetry each other under a left side. The utility model discloses an add the four rows of circular arc raceways of mutual symmetry on traditional linear guide's basis, improved linear guide's the performance that bears the load for bear lateral pressure load with the circular arc raceway of ball contact, make this linear guide's contact rigidity and bearing capacity can improve greatly, overcome and applyed great load to it after, the frictional force between linear guide's circular arc raceway and the ball sharply increases, thereby influence linear guide life's shortcoming.
Description
Technical Field
The utility model relates to a linear guide's technical field, in particular to linear guide that bearing capacity is good.
Background
The linear guide rail is mainly used in high-precision or high-speed linear reciprocating motion occasions, can bear certain torque, and can realize high-precision linear motion under the condition of high load.
At present, the traditional ball linear guide rail is generally adopted in the mechanical industry and is characterized in that: the guide rail has four circular arc raceways, and the contact of the ball with the raceway surface of four circular arc raceways that set up on the guide rail is the point contact, and its advantage is that the ball is little with the frictional force of raceway surface, and linear guide's sensitivity and running accuracy are high, and the shortcoming is that the contact rigidity is relatively poor, and bearing capacity is poor, and the ball can increase with the frictional force of raceway surface when bearing great load, aggravates linear guide's wearing and tearing, reduces linear guide's life.
The utility model provides a linear guide that bearing quality is good solves above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the current contact rigidity relatively poor, bearing capacity is poor, and the frictional force of ball and raceway surface can increase when bearing great load, and aggravation linear guide's wearing and tearing reduce this technical problem of linear guide's life, provide a linear guide that bearing capacity is good and solve above-mentioned technical problem.
For realizing the purpose of the utility model, the utility model adopts the technical scheme that: including the linear guide body, the top of linear guide body is radial pressure load plane, the left surface upper portion of linear guide body is equipped with left trapezoidal face, the right flank upper portion of linear guide body is equipped with right trapezoidal face, be equipped with on the trapezoidal face of a left side two upper left circular arc raceways and two left lower circular arc raceways, be equipped with two upper right circular arc raceways and two right lower circular arc raceways on the trapezoidal face of the right side, upper left circular arc raceway and upper right circular arc raceway symmetry each other, circular arc raceway and right lower circular arc raceway symmetry each other under a left side.
Furthermore, the included angle between the central line of the left upper arc raceway, the left lower arc raceway, the right upper arc raceway and the right lower arc raceway and the horizontal line is 45 degrees.
Furthermore, the left upper arc raceway, the left lower arc raceway, the right upper arc raceway and the right lower arc raceway are all 1/4 single arc raceways with the same radius.
Furthermore, the top of the linear guide rail body is provided with a mounting hole.
Compared with the prior art, the utility model has the advantages that: the linear guide rail has the advantages that the four rows of arc raceways are additionally arranged on the basis of the traditional linear guide rail, so that the load bearing performance of the linear guide rail is improved, eight rows of arc raceways which are used for bearing lateral pressure loads and are in contact with the balls are symmetrically arranged on two sides of the linear guide rail body, so that the contact rigidity and the bearing capacity of the linear guide rail are greatly improved, and the defect that the service life of the linear guide rail is influenced due to the fact that after a large load is applied to the linear guide rail, the friction force between the arc raceways of the linear guide rail and the balls is sharply increased is overcome.
Drawings
Fig. 1 is a schematic structural view of a linear guide rail with excellent bearing capacity according to the present invention;
in the figure: 1. a linear guide rail body; 2. a radial pressure load plane; 3. a left trapezoidal face; 4. a right trapezoidal face; 5. a left upper arc raceway; 6. a left lower arc raceway; 7. the right upper arc raceway; 8. a right lower arc raceway; 9. and (7) installing holes.
Detailed Description
In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is the utility model discloses a linear guide structure sketch map that bearing capacity is good, as shown in fig. 1, the embodiment of the utility model provides a linear guide that bearing capacity is good: the linear guide rail comprises a linear guide rail body 1, wherein a radial pressure load plane 2 is arranged at the top of the linear guide rail body 1, so that the load performance borne by the linear guide rail body 1 in the horizontal upward direction and the horizontal downward direction can be ensured to be consistent, the running precision of the linear guide rail is ensured, a left trapezoidal surface 3 is arranged at the upper part of the left side surface of the linear guide rail body 1, a right trapezoidal surface 4 is arranged at the upper part of the right side surface of the linear guide rail body 1, two rows of upper left arc raceways 5 and two rows of lower left arc raceways 6 are arranged on the left trapezoidal surface 3, two rows of upper right arc raceways 7 and two rows of lower right arc raceways 7 are arranged on the right trapezoidal surface 4, the upper left arc raceways 5 and the upper right arc raceways 7 are mutually symmetrical, the lower left arc raceways 6 and the lower right arc raceways 8 are mutually symmetrical, and the design can ensure that the load performance borne by the linear guide rail body 1 in the horizontal leftward direction and the horizontal rightward direction to be consistent, the linear guide rail is characterized in that four rows of arc raceways are additionally arranged on the basis of the traditional linear guide rail, so that the load bearing performance of the linear guide rail is improved, eight rows of arc raceways which are used for bearing lateral pressure loads and are in contact with balls are symmetrically arranged on two sides of the linear guide rail body, so that the contact rigidity and the bearing capacity of the linear guide rail are greatly improved, and the defect that the service life of the linear guide rail is influenced due to the fact that after a large load is applied to the linear guide rail, the friction force between the arc raceways of the linear guide rail and the balls is sharply increased is overcome.
The embodiment of the utility model provides a linear guide that bearing capacity is good, upper left circular arc raceway 5, lower left circular arc raceway 6, upper right circular arc raceway 7 and right lower circular arc raceway 8's central line and horizontal line's contained angle are 45, when selecting matched with ball size, will make upper left circular arc raceway 5, lower left circular arc raceway 6, upper right circular arc raceway 7 and right lower circular arc raceway 8 and ball between be clearance fit, upper left circular arc raceway 5, lower left circular arc raceway 6, ball and level in upper right circular arc raceway 7 and the right lower circular arc raceway 8 become 45 degrees contained angles, this shows upper left circular arc raceway 5, lower left circular arc raceway 6, the ball bearing load in upper right circular arc raceway 7 and the right lower circular arc raceway 8, all directions bearing capacity equals.
The embodiment of the utility model provides a pair of good linear guide of bearing capacity, circular arc raceway 8 is the same single circular arc raceway of 1/4 single circular arc raceways of radius under upper left circular arc raceway 5, the left side circular arc raceway 6, the upper right circular arc raceway 7 and the right side.
The embodiment of the utility model provides a provide a good linear guide of bearing capacity, linear guide body 1's top is equipped with mounting hole 9.
The beneficial effects of the utility model include: the linear guide rail has the advantages that the four rows of arc raceways are additionally arranged on the basis of the traditional linear guide rail, so that the load bearing performance of the linear guide rail is improved, eight rows of arc raceways which are used for bearing lateral pressure loads and are in contact with the balls are symmetrically arranged on two sides of the linear guide rail body, so that the contact rigidity and the bearing capacity of the linear guide rail are greatly improved, and the defect that the service life of the linear guide rail is influenced due to the fact that after a large load is applied to the linear guide rail, the friction force between the arc raceways of the linear guide rail and the balls is sharply increased is overcome.
The utility model provides a pair of linear guide that bearing quality is good, it should be understood, above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses a content and according to with the implementation, can not restrict with this the utility model discloses a protection scope. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. A linear guide rail with excellent bearing performance is characterized in that: including linear guide body (1), the top of linear guide body (1) is radial pressure load plane (2), the left surface upper portion of linear guide body (1) is equipped with left trapezoidal face (3), the right flank upper portion of linear guide body (1) is equipped with right trapezoidal face (4), be equipped with two left upper left circular arc raceway (5) and two left lower circular arc raceway (6) on left side trapezoidal face (3), be equipped with two upper right circular arc raceway (7) and two right lower circular arc raceway (8) on right side trapezoidal face (4), upper left circular arc raceway (5) and upper right circular arc raceway (7) are symmetrical each other, circular arc raceway (6) and right lower circular arc raceway (8) are symmetrical each other under a left side.
2. The linear guide rail according to claim 1, wherein: the included angle between the central lines of the left upper arc raceway (5), the left lower arc raceway (6), the right upper arc raceway (7) and the right lower arc raceway (8) and the horizontal line is 45 degrees.
3. The linear guide rail according to claim 1, wherein: the left upper arc raceway (5), the left lower arc raceway (6), the right upper arc raceway (7) and the right lower arc raceway (8) are all 1/4 single arc raceways with the same radius.
4. The linear guide rail according to claim 1, wherein: the top of the linear guide rail body (1) is provided with a mounting hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589885.9U CN214742774U (en) | 2021-03-26 | 2021-03-26 | Linear guide rail with excellent bearing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120589885.9U CN214742774U (en) | 2021-03-26 | 2021-03-26 | Linear guide rail with excellent bearing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742774U true CN214742774U (en) | 2021-11-16 |
Family
ID=78596473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120589885.9U Active CN214742774U (en) | 2021-03-26 | 2021-03-26 | Linear guide rail with excellent bearing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742774U (en) |
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2021
- 2021-03-26 CN CN202120589885.9U patent/CN214742774U/en active Active
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