CN220378709U - Radial stress guide rail pair - Google Patents
Radial stress guide rail pair Download PDFInfo
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- CN220378709U CN220378709U CN202322101469.1U CN202322101469U CN220378709U CN 220378709 U CN220378709 U CN 220378709U CN 202322101469 U CN202322101469 U CN 202322101469U CN 220378709 U CN220378709 U CN 220378709U
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- pulley
- rail
- guide rail
- rail pair
- radial force
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- 238000005096 rolling process Methods 0.000 claims abstract description 41
- 230000000903 blocking effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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Abstract
The utility model relates to a radial stress guide rail pair. The radial stress guide rail pair comprises: the pulley is of an inverted U shape, two track grooves are formed in the inner side of the pulley by taking the central line of the pulley main body as a symmetrical axis, two track grooves are formed in the lower surface of the pulley by taking the central line of the pulley main body as a symmetrical axis, the track groove surface of the lower surface of the pulley is vertical to the cross section, a middle rail is correspondingly arranged on the middle rail in a matching manner with the four track grooves of the pulley, a retainer is arranged on the retainer, a plurality of rolling body hole sites are arranged on the retainer, rolling bodies are arranged on the rolling body hole sites, and the rolling bodies connect the pulley with the middle rail; included angles exist between the inner side surface of the pulley, the side surface of the middle rail, the side surface of the retainer and the central line of the pulley. The utility model provides a guide rail pair bearing radial moment, which can meet the requirements of automation industry, pneumatic guide rail industry, high load and high-precision guide under the condition that the load of a support vertical to a pulley mounting surface is larger than that of a common guide rail and the running linear precision is kept unchanged.
Description
Technical Field
The utility model relates to the technical field of precise guide rails, in particular to a radial stress guide rail pair.
Background
The guide rail pair is provided with a channel of a rolling surface on the guide rail, the guide rail and the sliding block bear stress, and a plurality of rolling bodies are arranged on the rolling surfaces on two sides of the guide rail to bear stress. The guide rail is used for supporting and guiding the moving part to do reciprocating linear motion in a given direction to bear a certain torque.
The linear guide rail sliding block is internally provided with an upper rolling ball chain and a lower rolling ball chain, the upper side of the guide rail is provided with an upper arc track groove matched with the upper rolling ball chain, the lower side of the guide rail is provided with a lower arc track groove matched with the lower rolling ball chain, the included angle between the upper arc track groove and a horizontal line is 90 degrees, and the included angle between the lower arc track groove and the horizontal line is 30 degrees. In the high-precision occasion of the vertical sliding block direction due to the rigidity of the workpiece, etc., the bearing force of the guide rail and the sliding block on the vertical mounting surface cannot meet the market requirement, and the situation that precision failure occurs frequently causes equipment and device blocking.
Regarding the above technical solution, the inventors found that at least some of the following technical problems exist:
the requirement of consistency of grinding of the middle guide rail and the pulley channel size is met, rolling bodies are simultaneously arranged on the upper surface and the side surface of the rail, over-positioning is easy to cause, blocking and unsmooth are caused, and transmission precision is reduced.
Accordingly, there is a need to improve one or more problems in the related art as described above.
It is noted that this section is intended to provide a background or context for the technical solutions of the utility model set forth in the claims. The description herein is not admitted to be prior art by inclusion in this section.
Disclosure of Invention
It is an object of embodiments of the present disclosure to provide a radial force bearing rail pair that overcomes, at least in part, one or more of the problems due to the limitations and disadvantages of the related art.
The embodiment of the disclosure provides a radial stress guide rail pair, comprising:
the pulley is of an inverted U shape, two track grooves are formed in the inner side of the pulley by taking the central line of the pulley main body as a symmetrical axis, two track grooves are formed in the lower surface of the pulley by taking the central line of the pulley main body as a symmetrical axis, and the groove surface of the track groove on the lower surface of the pulley is perpendicular to the cross section;
the middle rail is matched with four rail grooves of the pulley and correspondingly provided with rail grooves;
the retainer is provided with a plurality of rolling body hole sites, rolling bodies are arranged on the rolling body hole sites, and the rolling bodies connect the pulley with the middle rail;
the inner side surface of the pulley, the side surface of the middle rail and the side surface of the retainer form an included angle with the central line of the pulley.
In an embodiment of the disclosure, the included angle is 15 degrees.
In an embodiment of the disclosure, two ends of the pulley are provided with pulley stoppers.
In an embodiment of the disclosure, one end of the intermediate rail is provided with a rail blocking piece.
In an embodiment of the disclosure, a limiting member mounting device is disposed on an outer side surface of the pulley.
In an embodiment of the disclosure, the track groove is circular arc-shaped.
In an embodiment of the present disclosure, the rolling elements are spherical in shape.
In an embodiment of the disclosure, a ratio of a radius of the circular arc of the track groove to a diameter of the rolling element is 0.5-0.6.
In one embodiment of the present disclosure, the intermediate rail is provided with a mounting counterbore.
In one embodiment of the present disclosure, the retainer is provided with a central relief hole.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
according to the embodiment of the disclosure, the rail grooves on the lower surface of the pulley and the rail grooves matched with the middle rail on the side surface with angles are connected by adopting rolling bodies, so that when the pulley is vertically installed on the installation surface to bear stress, the middle rail bears radial stress, and the guide rail is stressed in the radial direction to realize high load and high precision.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
FIG. 1 illustrates a schematic perspective view of a radial force rail pair in an exemplary embodiment of the present disclosure;
FIG. 2 illustrates a schematic structural view of a radial force bearing rail pair cross-section in an exemplary embodiment of the present disclosure;
FIG. 3 shows a schematic structural view of a sled in an exemplary embodiment of the present disclosure;
FIG. 4 illustrates a schematic structural view of a retainer in an exemplary embodiment of the present disclosure;
FIG. 5 shows a schematic structural view of a cross section of a sled in an exemplary embodiment of the present disclosure;
fig. 6 shows a schematic structural view of a cross section of a middle rail in an exemplary embodiment of the present disclosure.
Reference numerals: 100. a pulley; 101. a pulley blocking head; 102. a limiting member mounting device; 103. a track groove; 200. a middle rail; 201. a rail baffle; 300. a retainer; 301. a rolling element hole site; 302. a middle abdication hole; 400. rolling bodies.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of embodiments of the utility model and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
In this example embodiment, a radial stress guide rail pair is provided, and referring to fig. 1, the radial stress guide rail pair may include: the pulley 100, the intermediate rail 200, the cage 300, and the rolling elements 400.
The pulley 100 is in an inverted U shape, two track grooves 103 are formed in the inner side of the pulley 100 by taking the central line of the main body of the pulley 100 as a symmetry axis, two track grooves 103 are formed in the lower surface of the pulley 100 by taking the central line of the main body of the pulley 100 as a symmetry axis, and the groove surface of the track groove 103 on the lower surface of the pulley 100 is perpendicular to the cross section; the middle rail 200 is provided with rail grooves 103 in cooperation with four rail grooves 103 of the pulley 100; the cage 300 is provided with a plurality of rolling element hole sites 301, the rolling element holes 301 are provided with rolling elements 400, and the rolling elements 400 connect the pulley 100 with the intermediate rail 200; the inner side of the pulley 100, the side of the intermediate rail 200, and the side of the cage 300 are at an angle to the centerline of the pulley 100.
Through the radial stress guide rail pair, on one hand, the middle rail 200 bears radial moment, and the load vertical to the mounting surface of the pulley 100 is larger than that of the common guide rail; on the other hand, the operation is smooth, the transmission precision is high, and the transmission speed is high.
The respective portions of the above-described one radial force guide rail pair in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 6.
In one embodiment, the inner side of the sled 100, the side of the intermediate rail 200, the side of the cage 300 are angled at 15 degrees from the centerline of the sled 100. It should be understood that the included angle is not limited to 15 degrees, and may be any angle of 13 degrees to 18 degrees, wherein the included angle is 15 degrees, which is the optimal angle for radial stress, and further, the inner side surface of the pulley 100 is provided with the track groove 103, the shape center line of the track groove 103 of the inner side surface of the pulley 100 is 15 degrees with the horizontal line, the shape center line of the track groove 103 of the inner side surface of the pulley 100 is perpendicular to the inner side surface of the pulley 100, the shape center line of the track groove 103 of the side surface of the middle rail 200 is 15 degrees with the horizontal line, and the shape center line of the track groove 103 of the side surface of the middle rail 200 is perpendicular to the side surface of the middle rail 200; the included angle between the center line of the side rolling element hole site 301 of the retainer 300 and the horizontal line is 15 degrees, and the center line of the side rolling element hole site of the retainer 300 is perpendicular to the side of the retainer 300. An included angle of 15 degrees is set as the optimal choice for the intermediate rail 200 to withstand radial moments.
In one embodiment, the sled stops 101 are provided at both ends of the sled 100. It should be understood that the pulley stopper 101 is in bolted connection with the pulley 100, and when the pulley 100 slides on the intermediate rail 200, the pulley stopper 101 limits the position of the cage 300, has a dust-proof effect, and facilitates the disassembly and assembly of the cage 300 and the rolling elements 400.
In one embodiment, the intermediate rail 200 is provided with a rail flap 201 at one end. It should be appreciated that when the sled 100 slides to one end of the track flaps 201, the track flaps 201 provide a sliding restriction to the sled 100.
In one embodiment, the outboard side of the sled 100 is provided with a limiter mounting arrangement 102. It should be understood that the limiting member mounting device 102 is used to cooperate with a limiting member to limit sliding movement of the trolley 100 when the trolley 100 slides to an end where the rail blocking piece 201 is not mounted.
In one embodiment, the track groove 103 is circular arc shaped. The rolling elements 400 are spherical in shape. The ratio of the radius of the circular arc of the track groove 103 to the diameter of the rolling element 400 is 0.5-0.6. It should be understood that the track groove 103 is circular arc in shape, but is not limited to circular arc only, and may be a square groove. The rolling elements 400 are spherical in shape, but are not limited to spherical, and may be cylindrical. When the square groove is matched with the cylindrical rolling body 400, the middle rail 200 can bear radial stress, but the circular arc type track groove 103 is matched with the spherical rolling body 400, and the diameter ratio of the circular arc radius of the track groove 103 to the diameter of the rolling body 400 is 0.55, so that the best bearing radial stress of the middle rail 200 is selected.
In one embodiment, the cage 300 is provided with a central relief hole 302. The intermediate rail 200 is provided with a mounting counterbore. It will be appreciated that the mating of the intermediate relief holes 302 of the cage 300 with the mounting counter bores of the intermediate rail 200 allows for an expanded range of machining, not limited to machining only work pieces that may be mounted on the upper surface of the sled 100.
It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like in the above description are directional or positional relationships as indicated based on the drawings, merely to facilitate description of embodiments of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting embodiments of the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In embodiments of the utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
Claims (10)
1. A radial stress guide rail pair, comprising:
the pulley is of an inverted U shape, two track grooves are formed in the inner side of the pulley by taking the central line of the pulley main body as a symmetrical axis, two track grooves are formed in the lower surface of the pulley by taking the central line of the pulley main body as a symmetrical axis, and the groove surface of the track groove on the lower surface of the pulley is perpendicular to the cross section;
the middle rail is matched with four rail grooves of the pulley and correspondingly provided with rail grooves;
the retainer is provided with a plurality of rolling body hole sites, rolling bodies are arranged on the rolling body hole sites, and the rolling bodies connect the pulley with the middle rail;
the inner side surface of the pulley, the side surface of the middle rail and the side surface of the retainer form an included angle with the central line of the pulley.
2. The radial force rail pair of claim 1, wherein the included angle is 15 degrees.
3. The radial force rail pair of claim 1, wherein the two ends of the sled are provided with sled stops.
4. The radial force rail pair of claim 1, wherein the intermediate rail has a rail stop at one end.
5. The radial force rail pair of claim 1, wherein the outboard face of the sled is provided with a stop mounting arrangement.
6. The radial force rail pair of claim 1, wherein the track groove is circular arc shaped.
7. The radial force rail pair of claim 1, wherein the rolling elements are spherical in shape.
8. The radial force-bearing rail pair of claim 7, wherein the ratio of the radius of the circular arc of the track groove to the diameter of the rolling elements is 0.5-0.6.
9. The radial force rail pair of claim 1, wherein the intermediate rail is provided with a mounting counterbore.
10. The radial force rail pair of claim 1, wherein the cage is provided with a center relief hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322101469.1U CN220378709U (en) | 2023-08-07 | 2023-08-07 | Radial stress guide rail pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322101469.1U CN220378709U (en) | 2023-08-07 | 2023-08-07 | Radial stress guide rail pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378709U true CN220378709U (en) | 2024-01-23 |
Family
ID=89573147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322101469.1U Active CN220378709U (en) | 2023-08-07 | 2023-08-07 | Radial stress guide rail pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378709U (en) |
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2023
- 2023-08-07 CN CN202322101469.1U patent/CN220378709U/en active Active
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