CN202811888U - Sliding block coupler used for angle transfer - Google Patents
Sliding block coupler used for angle transfer Download PDFInfo
- Publication number
- CN202811888U CN202811888U CN201220442080.2U CN201220442080U CN202811888U CN 202811888 U CN202811888 U CN 202811888U CN 201220442080 U CN201220442080 U CN 201220442080U CN 202811888 U CN202811888 U CN 202811888U
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- coupling
- slide block
- steel ball
- sliding block
- fixed block
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Abstract
The utility model provides a sliding block coupler used for angle transfer. A sliding block and a middle sliding block assemble formed by four fixing blocks are arranged between a first half coupler and a second half coupler; the four fixing blocks are respectively pairwise fixed on two end surfaces of the sliding block; the fixing blocks on the same end surface are parallel and are symmetrical with the axis of the sliding block; two grooves formed by the fixing blocks on the upper end surface and the lower end surface are mutually vertical; four steel ball retainers are respectively arranged in grooves formed by sliding block assemblies consisting of the sliding block and the fixing blocks; five through holes are evenly distributed in a horizontal line in the middle of the long-direction end surfaces of the steel ball retainers; the middle through hole is aligned with threaded holes in the straight line surfaces of the fixing blocks and is spaced by a retainer spacing bolt; and steel balls are arranged in the rest four through holes. According to the sliding block coupler used for the angle transfer, which is disclosed by the utility model, the angle transfer precision is improved, the compensation capability on an axial system error is enlarged, the mechanical property is improved, meanwhile, the manufacture technology is simplified, and the application range is enlarged.
Description
Technical field
The utility model belongs to fields of measurement, relates to a kind of angle transmission oldham coupling structure for accurate angle transmission.
Background technique
Coupling is to connect between two turning axlees or turning axle and the revolving meber, rotating coupling together in the process of transmitting motion and position.In general coupling can be used for transmitting torque and transmits angular orientation two classes, because kind is different, structure and the concrete technical requirements of coupling also is not quite similar.The below highlights and transmits the angle coupling, and it should possess following characteristics and technical requirements: need to overcome the rotary axis system error, adapting to axle is to-and-fro motion etc.The rotary axis system error refer to two turning axlees axially, radially displacement and the not parallel declination error that causes of axis etc.The coupling that is generally used for transmitting angle generally adopts the elastic coupling flexible coupling structure.Structural representation is seen Fig. 1.
Half-coupling I 3 links to each other with turning axle II 2 with turning axle I 1 respectively with half-coupling II 6, is connected with intermediate mass 5 by two flat spring sheets 4, and connecting direction is mutually vertical.This general elastic coupling flexible coupling can only be applicable to that two rotary axis system declination errors are less, rigidity situation preferably, can not be applied to axle-system axial, the axle system of presence bit shift error radially.Above-mentioned narrow limitation has proposed harsh requirement to the installment and debugging of axle system, so that this type of coupling is very limited in application, can not satisfy the actual demand of high precision measurement.
Summary of the invention
The purpose of this utility model is to have proposed a kind of raising angle transmitting accuracy, enlarges the compensation ability to axial system error, improves the angle transmission oldham coupling of mechanical property.
Realize the technological scheme of the utility model purpose: a kind of angle transmission oldham coupling, its half-coupling I and half-coupling II all are middle cylindrical bodys that circular hole end face band boss is arranged, and this centre circular hole is for cooperate connection with turning axle; Slide block and 4 intermediate slider assemblies that fixed block forms are set between half-coupling I and half-coupling II; Described slide block is the two sides parallel cylindrical bodies, and cylinder diameter is identical with the half-coupling II with the half-coupling I, and the slide block end face axial is evenly equipped with several tapped holes; Described fixed block is identical with slide block and the not a half circle of radius, and end face axial has two countersunk head through holes to be used for being fixed on slide block, and the planarea intermediate radial leaves a tapped hole; 4 fixed blocks are fixing respectively in twos in the both ends of the surface of slide block, and the fixed block on the same end face is parallel and symmetrical with the slide block axis, and two grooves that have up and down fixed block to form on the both ends of the surface are mutually vertical; Place respectively totally 4 of steel ball retainers in the groove that the slide block assembly that is comprised of slide block and fixed block forms, the steel ball retainer is shaped as the rectangle hexahedron, and length direction is no more than the slide block outer margin contour after assembling, width and fixed block consistency of thickness; " word " uniform 5 through holes in the middle of the steel ball retainer length direction end face, intermediate throughholes is alignd with tapped hole on the fixed block planarea, and it is spacing to pass through the retainer stop screw, places steel ball in all the other 4 through holes.
Aforesaid a kind of angle transmission oldham coupling, its described half-coupling I and half-coupling II are quenched by 9Gr18 and make quenching hardness HRc58～62.
Aforesaid a kind of angle transmission oldham coupling, the boss of its described half-coupling I and half-coupling II be both sides parallel and with two working surfaces of half-coupling axis Parallel Symmetric, width is greater than intermediate shaft hole 1～2mm, boss two working surface grinding disposing, planeness is not more than 0.1 μ m.
Aforesaid a kind of angle transmission oldham coupling, its described slide block and fixed block quench by 9Gr18 and make quenching hardness HRc58～62.
Aforesaid a kind of angle transmission oldham coupling, its described fixed block upper and lower surface and planarea abrasive machining to planeness are not more than 0.1 μ m, parallelism is not more than 0.2 μ m and the planarea perpendicularity is not more than 3 ".
Aforesaid a kind of angle transmission oldham coupling, its described steel ball retainer is made by aluminium material.
Aforesaid a kind of angle transmission oldham coupling is coated with lubricant oil in its described steel ball retainer both ends of the surface and the steel ball interporal lacuna, plays lubricated and rust inhibition; Adjust the position dimension of fixed block, make the steel ball interference fit, magnitude of interference is not more than 3 μ m.
Effect of the present utility model is:
The transmission of the utility model angle is adopted sliding block type structure with coupling, to compensate axial, the radial displacement deviation between two rotary axis systems; Add the ball with pretightening force between slide block and half shaft coupling, in order to eliminate the gap between slide block and half shaft coupling, avoid idle running, the angle transmission accurately and reliably when guaranteeing that axle is to-and-fro motion; Utilize the rolling friction mode, make relative flexibility and reliability between slide block and the half-coupling; Utilize ball roll compensation two turning axle axis parallel degree deviations, reduced friction factor to realize the angle transmission of higher speed; Coupling adopts the 9Gr18 stainless steel to quench and makes, and material settling out is wear-resisting, the working life of extension device; Structure adopts split type assembling form so that debugging, maintenance are more simple and convenient, reduces the working service cost.
The transmission of the utility model angle has improved the angle transmitting accuracy with oldham coupling, has enlarged the compensation ability to axial system error, has improved mechanical property, has simplified simultaneously manufacturing process, has enlarged application area.
Description of drawings
Fig. 1 is the elastic coupling flexible coupling structural representation;
Fig. 2 is angle transmission described in the utility model oldham coupling overall structure schematic representation;
Fig. 3 is angle transmission described in the utility model oldham coupling Split type structure schematic representation;
Among the figure: 1. turning axle I; 2. turning axle II; 3. half-coupling I; 4. spring sheet; 5. intermediate mass; 6. half-coupling II; 7. fixed block; 8. retainer stop screw; 9. steel ball retainer; 10. slide block; 11. steel ball; 12. tapped hole.
Embodiment
Below in conjunction with the drawings and specific embodiments angle transmission described in the utility model is further described with oldham coupling.
As shown in Figures 2 and 3, angle transmission described in the utility model comprises half-coupling I 3 and half-coupling II 6 with oldham coupling, quenches by 9Gr18 and makes quenching hardness HRc58～62.Half-coupling I 3 and half-coupling II 6 all are middle cylindrical bodys that circular hole end face band boss is arranged, and this centre circular hole is for cooperate connection with turning axle; Middle circular hole and turning axle cooperate, and matching gap is not more than 0.02mm; There is the M3 tapped hole fixing with turning axle the side, fixes with M3 jackscrew and turning axle during use.
Fixed block 7 is radius and slide block 10 identical and not a half circles, and end face axial has two countersunk head Φ 3.5 through holes to be used for being fixed on slide block 10, and the planarea intermediate radial leaves the tapped hole 12 of a M2 dark 4; Fixed block 7 upper and lower surfaces and planarea abrasive machining to planeness are not more than 0.1 μ m, and parallelism is not more than 0.2 μ m and the planarea perpendicularity is not more than 3 ".
4 fixed blocks 7 are fixing respectively in twos in the both ends of the surface of slide block 10, and the fixed block 7 on the same end face is parallel and symmetrical with slide block 10 axis, and two grooves that have up and down fixed block 7 to form on the both ends of the surface are mutually vertical;
In the groove that the slide block assembly that is comprised of slide block 10 and fixed block 7 forms, place respectively totally 4 of the steel ball retainers 9 made by aluminium material, steel ball retainer 9 is shaped as the rectangle hexahedron, length direction is no more than slide block 10 outer margin contours after assembling, width and fixed block 7 consistency of thickness, thickness gauge is 2.7mm." word " uniform 5 through holes in the middle of steel ball retainer 9 length direction end faces are of a size of Φ 3.1.Intermediate throughholes is alignd with M2 tapped hole 12 on fixed block 7 planareas, and spacing by retainer stop screw 8, and retainer comes off when avoiding using; Place steel ball in all the other 4 Φ 3.1 through holes.
Be coated with lubricant oil in steel ball retainer 9 both ends of the surface and steel ball 11 interporal lacunas, play lubricated and rust inhibition; Adjust the position dimension of fixed block 7, make steel ball 11 interference fit, magnitude of interference is not more than 3 μ m.
The angle transmission is installed between two turning axlees with oldham coupling during use, and the two halves shaft coupling links to each other with turning axle respectively, fixes with the M3 jackscrew by side M3 tapped hole; Compensate two turning axle axial floats, oldham coupling is the upper adjustment amount of reserving axially.
The utility model proposes a kind of angle transmission mode of structure of oldham coupling, this structure in order to eliminate between two turning axlees axially, radially offset deviation (deviation is not more than 0.5mm), the deviation that axis parallel degree causes (deviation is not more than 0.2 °), enlarge the compensation ability to axle system, improved mechanical property; This axis of no-feathering gyratory directions gapless, the angle passing shaft that is applicable to reciprocating rotation is; Adopt split-type structural to improve the manufacturability of manufacturing, maintenance, simple and reliable for structure; Vulnerable part adopts 9Gr18 quenching stainless steel to make, and has strengthened the corrosion resistance of structure and resistance to wears; The mode of utilizing ball to connect substitutes sliding friction with rolling friction, and structure is more light and handy, flexible, not only is suitable for low speed angle passing shaft system simultaneously also applicable to fast state, has expanded oldham coupling using scope and use field.
Claims (7)
1. angle transmission oldham coupling, its half-coupling I (3) and half-coupling II (6) have the cylindrical body of circular hole end face band boss in the middle of all being, this centre circular hole is for cooperate connection with turning axle; It is characterized in that: the intermediate slider assembly that slide block (10) and 4 fixed blocks (7) form is set between half-coupling I (3) and half-coupling II (6);
Described slide block (10) is the two sides parallel cylindrical bodies, and cylinder diameter is identical with half-coupling II (6) with half-coupling I (3), and slide block (10) end face axial is evenly equipped with several tapped holes;
Described fixed block (7) is radius and the identical and not a half circle of slide block (10), and end face axial has two countersunk head through holes to be used for being fixed on slide block (10), and the planarea intermediate radial leaves a tapped hole (12);
4 fixed blocks (7) are fixing respectively in twos in the both ends of the surface of slide block (10), and the fixed block on the same end face (7) is parallel and symmetrical with slide block (10) axis, and two grooves that have up and down fixed block (7) to form on the both ends of the surface are mutually vertical;
In the groove that the slide block assembly that is comprised of slide block (10) and fixed block (7) forms, place respectively totally 4 of steel ball retainers (9), steel ball retainer (9) is shaped as the rectangle hexahedron, length direction is no more than slide block (10) outer margin contour after assembling, width and fixed block (7) consistency of thickness; " word " uniform 5 through holes in the middle of steel ball retainer (9) the length direction end face, intermediate throughholes is alignd with tapped hole (12) on fixed block (7) planarea, and it is spacing to pass through retainer stop screw (8), places steel ball in all the other 4 through holes.
2. a kind of angle transmission oldham coupling according to claim 1 is characterized in that: described half-coupling I (3) and half-coupling II (6) are quenched by 9Gr18 and are made quenching hardness HRc58～62.
3. a kind of angle transmission oldham coupling according to claim 1, it is characterized in that: the boss of described half-coupling I (3) and half-coupling II (6) be both sides parallel and with two working surfaces of half-coupling axis Parallel Symmetric, width is greater than intermediate shaft hole 1～2mm, boss two working surface grinding disposing, planeness is not more than 0.1 μ m.
4. a kind of angle transmission oldham coupling according to claim 1 is characterized in that: described slide block (10) quenches by 9Gr18 with fixed block (7) and makes quenching hardness HRc58～62.
5. a kind of angle transmission oldham coupling according to claim 1, it is characterized in that: described fixed block (7) upper and lower surface and planarea abrasive machining to planeness are not more than 0.1 μ m, and parallelism is not more than 0.2 μ m and the planarea perpendicularity is not more than 3 ".
6. a kind of angle transmission oldham coupling according to claim 1, it is characterized in that: described steel ball retainer (9) is made by aluminium material.
7. a kind of angle transmission oldham coupling according to claim 1 is characterized in that: be coated with lubricant oil in described steel ball retainer (9) both ends of the surface and steel ball (11) interporal lacuna, play lubricated and rust inhibition; Adjust the position dimension of fixed block (7), make steel ball (11) interference fit, magnitude of interference is not more than 3 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220442080.2U CN202811888U (en) | 2012-08-31 | 2012-08-31 | Sliding block coupler used for angle transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220442080.2U CN202811888U (en) | 2012-08-31 | 2012-08-31 | Sliding block coupler used for angle transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811888U true CN202811888U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220442080.2U Expired - Lifetime CN202811888U (en) | 2012-08-31 | 2012-08-31 | Sliding block coupler used for angle transfer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202811888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797764A (en) * | 2012-08-31 | 2012-11-28 | 北京航天计量测试技术研究所 | Slide block coupling for angle transmission |
-
2012
- 2012-08-31 CN CN201220442080.2U patent/CN202811888U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797764A (en) * | 2012-08-31 | 2012-11-28 | 北京航天计量测试技术研究所 | Slide block coupling for angle transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |