CN217633434U - Radial pretension formula bearing structure that floats - Google Patents
Radial pretension formula bearing structure that floats Download PDFInfo
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- CN217633434U CN217633434U CN202221331056.1U CN202221331056U CN217633434U CN 217633434 U CN217633434 U CN 217633434U CN 202221331056 U CN202221331056 U CN 202221331056U CN 217633434 U CN217633434 U CN 217633434U
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- supporting
- support
- upper cover
- support shaft
- base
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Abstract
The utility model belongs to the technical field of auxiliary support in mechanical motion structures, in particular to a radial pre-tightening type floating support structure, which comprises a base and an upper cover arranged above the base, wherein a support shaft is arranged between the base and the upper cover, and a support piece is arranged on the support shaft; supporting blocks are arranged on two sides of the base, grooves are formed in the upper surfaces of the supporting blocks, and supporting shafts are embedded in the grooves; the lower surface of the upper cover is provided with a groove matched with the support shaft; the supporting block is provided with a guide hole, and the upper end of the guide hole is connected with the groove; a spring is arranged in the guide hole, a ball is arranged above the spring and used for supporting the supporting shaft. The utility model discloses when supporting other moving parts, the spring provides the function of floating for bearing structure. The support shaft and the balls are in rolling friction, and even if the support shaft is deformed to a certain extent or rotates due to radial force, the friction force of the support shaft due to the balls is small, and the friction force of the support shaft can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of the auxiliary stay among the mechanical motion structure, concretely relates to radial pretension formula bearing structure that floats.
Background
The linear motion structure is a motion structure common in mechanical structures, and generally, the linear motion structure has a base, a motion part is arranged above the base, a slide block, a guide rail, a ball screw or other linear motion driving mechanism is arranged between the motion part and the base, and the motion part makes linear motion relative to the base. When the length of the moving part is longer, the moving part generates a certain amount of deflection, which causes deformation of the part, and therefore, for the stability of the movement, a plurality of supporting pieces are required to be arranged below the moving part for counteracting the deformation of the moving part. However, during the use process, deformation caused by cold and hot temperature difference or friction or other factors cannot be avoided, if the component deforms, a gap exists between the component and the supporting piece, so that invalid support is caused, or the component and the supporting piece are blocked due to overlarge pressing force, so that the operation of the equipment is influenced.
Therefore, in order to solve the mass problem caused by the deformation of the component, it is necessary to improve the existing support into a part having a floating function by means of a floating support structure.
Therefore, the utility model provides a radial pretension formula bearing structure that floats.
SUMMERY OF THE UTILITY MODEL
Floating bearing structure has frictional deformation's technical problem among the prior art, the utility model provides a radial pretension formula bearing structure that floats increases the ball between the axle that sets up support piece and the floating spring to reduce friction.
In order to realize the purpose, the utility model discloses the technical scheme who adopts as follows:
a radial pre-tightening type floating support structure comprises a base and an upper cover arranged above the base, wherein a support shaft is arranged between the base and the upper cover, and a support piece is arranged on the support shaft in a penetrating way; two supporting blocks are symmetrically arranged on two sides above the base, grooves are formed in the upper surfaces of the supporting blocks, and supporting shafts are embedded in the grooves; the lower surface of the upper cover is provided with a groove matched with the support shaft; the supporting block is provided with a guide hole, and the upper end of the guide hole is connected with the groove; a spring is arranged in the guide hole, a ball is arranged above the spring and used for supporting the supporting shaft.
Furthermore, limit structures are arranged at two ends of the supporting shaft.
Furthermore, the limiting structure is a boss or a clamp spring.
Furthermore, the clamp spring is an E-shaped clamp spring.
Further, the support shaft is provided with an arc-shaped groove at a position where the support shaft contacts the ball, and the surface of the groove is engaged with the ball.
Further, the spring is a rectangular spring.
Further, the support is a roller or a rolling bearing.
Furthermore, friction plates are arranged on two sides of the supporting piece to reduce friction between the supporting piece and the supporting block.
Furthermore, the supporting block upper surface sets up the locating pin, and the upper cover passes through the locating pin to be clearance fit between upper cover and the locating pin on the supporting block.
Further, the groove on the supporting block is a semicircular groove.
Further, the groove on the lower surface of the upper cover is a semicircular groove.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses set up the spring in the supporting shoe of base top, the spring top increases the ball, adopts ball support back shaft, sets up support piece on the back shaft, and then support piece is when supporting other moving parts, and the spring provides the function of floating for bearing structure. For rolling friction between back shaft and the ball, even when the back shaft receives certain deformation or radial force and appears rotatoryly, the back shaft receives the frictional force of ball less, can effectively reduce the frictional force of back shaft, improve equipment stability in use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic view of the exploded structure of the present invention.
Description of the reference numerals:
1-base, 2-upper cover, 3-spring, 4-ball, 5-supporting shaft, 6-supporting piece, 7-friction plate, 8-boss, 9-snap spring and 10-positioning pin.
Detailed Description
The technical solution of the present invention will be described clearly with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the terms "center", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1-3, the utility model provides a radial pre-tightening floating support structure, which comprises a base 1 and an upper cover 2 arranged above the base 1, wherein both sides of the base 1 are provided with supporting blocks, and the two supporting blocks are symmetrical in structure; a space is left between the two support blocks to facilitate the arrangement of the support member 6. The upper surface of the supporting block is provided with a semicircular groove, a supporting shaft 5 is embedded into the semicircular groove, the lower surface of the upper cover 2 is provided with a semicircular groove, and the semicircular groove of the upper cover 2 and the semicircular groove on the supporting block form a whole circle when the upper cover 2 is installed on the base 1.
The inside vertical guiding hole that sets up of supporting shoe, the guiding hole is located semicircular groove's centre, sets up spring 3 in the guiding hole, and spring 3's upper end sets up ball 4, and ball 4 is used for supporting back shaft 5. The support shaft 5 is provided with a support part 6 in a penetrating way, and the support part 6 is used for supporting the moving part.
Among them, the spring 3 used in the present embodiment is preferably a rectangular spring, which is excellent in fatigue resistance. The support 6 is preferably a roller or a rolling bearing, when in use, the support 6 is in contact with the moving part, and the roller or the rolling bearing is adopted for the support 6, so that the friction between the support 6 and the moving part can be reduced, the noise is reduced, and the motion stability is improved.
In order to avoid the axial displacement of the supporting shaft 5, two ends of the supporting shaft 5 are provided with limiting structures. The limiting structure can be a boss or a clamp spring, when the limiting structure is the boss, the boss and the support shaft are integrally formed, and when the limiting structure is the clamp spring, the clamp spring is preferably an E-shaped clamp spring. In this embodiment, the one end of back shaft 5 sets up boss 8, and the other end sets up jump ring 9.
In order to reduce the local supporting force of the supporting shaft 5 and reduce the surface abrasion of the supporting shaft 5, the supporting shaft 5 is provided with an arc-shaped groove at the position where the supporting shaft contacts with the ball 4, and the surface of the groove is matched with the ball 4. During the use, the recess of back shaft 5 and ball 4 cooperation, increase back shaft 5 and ball 4 area of contact effectively decompose local holding power, reduce the wearing and tearing of back shaft 5, can avoid ball 4 and back shaft 5 to take place skew or dislocation simultaneously.
Preferably, friction plates 7 are provided on both sides of the support 6 to reduce friction between the support 6 and the support block.
Supporting shoe upper surface sets up locating pin 10, and upper cover 2 passes through locating pin 10 to install on the supporting shoe to be clearance fit between upper cover 2 and the locating pin 10, make upper cover 2 can reciprocate under the guide effect of locating pin 10, with the unsteady from top to bottom of cooperation support piece 6.
The utility model discloses a theory of operation does: the utility model provides a floating support structure relies on the gravity of motion part to compress spring 3 in the process of supporting the motion part, and the resilience force of spring 3 acts on support shaft 5, so that support shaft 5 has certain radial pretightening force, which is helpful for support piece 6 to cling to the motion part; when the lower surface of the moving part is uneven due to deformation or other factors, the supporting piece 6 can float up and down to a certain extent depending on the elastic performance of the spring 3, so that the supporting piece 6 is always attached to the moving part, and ineffective support is avoided. Under certain conditions, if the supporting shaft 5 rotates with the supporting member 6, the supporting shaft 5 and the balls 4 are in rolling friction, thereby effectively reducing the abrasion of the supporting shaft 5.
It should be finally noted that the above contents are only used to illustrate the technical solutions of the present invention, but not to limit the protection scope of the present invention, and the simple modification or equivalent replacement performed by the technical solutions of the present invention by those skilled in the art does not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A radial pre-tightening type floating support structure is characterized by comprising a base and an upper cover arranged above the base, wherein a support shaft is arranged between the base and the upper cover, and a support piece is arranged on the support shaft in a penetrating way; two supporting blocks are symmetrically arranged on two sides above the base, grooves are formed in the upper surfaces of the supporting blocks, and supporting shafts are embedded in the grooves; the lower surface of the upper cover is provided with a groove matched with the support shaft; the supporting block is provided with a guide hole, and the upper end of the guide hole is connected with the groove; a spring is arranged in the guide hole, a ball is arranged above the spring and used for supporting the supporting shaft.
2. The radially pre-tensioned floating support structure of claim 1 wherein the support shaft is provided with a stop structure at each end.
3. The radially pre-tensioned floating support structure of claim 2, wherein the stop structure is a boss or a circlip.
4. The radially preloaded floating support structure of claim 1, wherein said support shaft is provided with arcuate grooves at the locations where it contacts the balls, the surfaces of which engage the balls.
5. The radially preloaded floating support structure of claim 1, wherein said springs are rectangular springs.
6. The radially preloaded floating support structure of claim 1, wherein said supports are rollers or rolling bearings.
7. The radially preloaded floating support structure of claim 1, wherein friction disks are placed on either side of the support member.
8. The radially preloaded floating support structure of claim 1, wherein said support block has a locating pin on its upper surface, said upper cover is mounted on said support block by said locating pin, and said upper cover and said locating pin are in clearance fit.
9. The radially preloaded floating support structure of claim 1, wherein the recesses in the support blocks are semi-circular recesses and the recesses in the lower surface of the upper cover are semi-circular recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221331056.1U CN217633434U (en) | 2022-05-30 | 2022-05-30 | Radial pretension formula bearing structure that floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221331056.1U CN217633434U (en) | 2022-05-30 | 2022-05-30 | Radial pretension formula bearing structure that floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633434U true CN217633434U (en) | 2022-10-21 |
Family
ID=83621710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221331056.1U Active CN217633434U (en) | 2022-05-30 | 2022-05-30 | Radial pretension formula bearing structure that floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633434U (en) |
-
2022
- 2022-05-30 CN CN202221331056.1U patent/CN217633434U/en active Active
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