CN202194957U - Ball spline transmission assembly - Google Patents
Ball spline transmission assembly Download PDFInfo
- Publication number
- CN202194957U CN202194957U CN2011202977037U CN201120297703U CN202194957U CN 202194957 U CN202194957 U CN 202194957U CN 2011202977037 U CN2011202977037 U CN 2011202977037U CN 201120297703 U CN201120297703 U CN 201120297703U CN 202194957 U CN202194957 U CN 202194957U
- Authority
- CN
- China
- Prior art keywords
- ball
- spline
- sliding sleeve
- reverser
- tunnels
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a ball spline transmission assembly, which comprises a ball spline shaft, a plurality of balls and a spline sliding sleeve, a plurality of axial ball tunnels are evenly arranged in the wall of the spline sliding sleeve in the radial direction, a plurality of ball rails are arranged on the inner wall of the spline sliding sleeve, the number of the ball rails is the same as that of the ball tunnels, and the ball rails and the ball tunnels are respectively distributed in the same radial direction. A reverser is respectively fixed at two ends of the spline sliding sleeve, a plurality of arc grooves are evenly distributed on the contact surface of each reverser and the spline sliding sleeve in the radial direction, the number of the arc grooves is the same as that of the ball tunnels, the number of teeth of the ball spline shaft is the same as the number of the ball tunnels, and a ball spline shaft tooth groove, one arc groove, one ball rail and one ball tunnel are communicated to form a ball travel loop, and the plurality of balls are arranged in the travel loop. The ball spline transmission assembly improves hardness of each component, enhances abrasion performance of a ball spline transmission pair, and overcomes the shortcoming that an existing spline shaft is fast in abrasion.
Description
Technical field
The utility model relates to a kind of spline transmitting assemblies, relates in particular to a kind of ball spline transmitting assemblies.
Background technique
Spline connects transmission and is made up of a plurality of key teeth and keyway on axle and the wheel bore, and the key flank is a working surface, leans on the extruding of key flank to come transmitting torque.Spline connects and to have advantages of high bearing capacity, and centering precision is high, and steering capability is good, can realize static connection or is dynamically connected.Therefore, in aircraft, automobile, tractor, lathe and farm machinery, be widely used.
Spline connects standardization, and is different by profile of tooth, is divided into two kinds of rectangular spline and involute spliness.Wherein, for adapting to the different loads situation, rectangular spline has been stipulated thin and middle series by the difference of tooth depth in standard.The centering mode that rectangular spline connects is path centering, and the face of the spline in axle, hole centering at this moment all can carry out grinding, and centering precision is high.The profile of tooth of involute splines is an involute, and its pressure angle of graduated circle regulation has 30 degree and two kinds of 45 degree, and tooth root portion is thicker, and key tooth intensity is high, when torque transmitted reaches the diameter of axle more greatly when also big, should adopt the involute splines connection.Because the effect of each flank of tooth radial force can make the connection self-alignment during spline connected, it is even to help each tooth stand under load.
The processing technology of splined shaft is generally: car, mill, grind processing or forming tension drawing moulding, technology is complicated, and processing charges is high, and cost is big; The splined shaft precision of this processes is lower, be difficult to adapt to the needs of integrated, the digitized high-end devices of present machine building industry.In addition, traditional rectangular and involute splined shaft, wearing and tearing in use are exceedingly fast, and this is that rectangle is connected transmission deadly defect in use with involute splines.
The model utility content
To above-mentioned existing technology, the utility model provides a kind of ball spline transmitting assemblies, has improved the hardness of each constituent elements, has strengthened the wear-resisting property of ball spline transmission, has overcome the weakness of splined shaft quick abrasion in the existing technology.
In order to solve the problems of the technologies described above; The technological scheme that a kind of ball spline transmitting assemblies of the utility model is achieved is: comprise ball spline shaft, a plurality of ball and spline sliding sleeve; Be provided with many axial ball tunnels that are uniformly distributed with diametrically in the wall of said spline sliding sleeve; The inwall of said spline sliding sleeve is provided with many ball orbits, and ball orbit is identical with the bar number in ball tunnel, and is distributed in respectively that identical footpath makes progress; The two ends of said spline sliding sleeve are fixed with reverser respectively, and the surface of contact of each reverser and said spline sliding sleeve is provided with a plurality of arc grooves that are uniformly distributed with diametrically; The number of arc groove is identical with the bar number in ball tunnel; The number of teeth of said ball spline shaft is identical with the bar number in ball tunnel; One ball spline shaft teeth groove, an arc groove, a ball orbit and a ball tunnel holing through form a ball stroke loop, and said a plurality of balls are located in the said stroke loop.
The ball spline transmission that a kind of ball spline transmitting assemblies of the utility model forms is a kind of machine structural parts of novel driving torque, and comparing with traditional splined shaft has the following advantages:
1, on the spline sliding sleeve, is designed with the backhaul hole of ball tunnel as ball; The reverser of end cover type is housed at spline sliding sleeve two ends; The work that the ball that is arranged in the ball stroke loop can be moved in circles smoothly in order, the transmission that its centering precision is high, highly sensitive, do not have the precision creeped, can guarantee; Stable drive; Driving torque is big, bearing capacity is strong, vibrations are little.
2. the utility model is provided with lubricating structure, and its transmission wear-resisting property is good, friction factor is little, long service life.
3. the utility model manufacturing process is simple, and saves raw material.
Description of drawings
Fig. 1-the 1st, the erection drawing of the utility model ball spline sliding sleeve and reverser;
Fig. 1-2 is the end view drawing that reverser is provided with arc groove one side shown in Fig. 1-1;
Fig. 1-the 3rd, the left view of assembly shown in Fig. 1-1;
Fig. 2 is the axial schematic representation of ball spline shaft;
Fig. 3 is the axial schematic representation after the utility model assembling.
Among the figure:
10---ball spline shaft 11---ball spline shaft teeth groove 20---reversers
21---arc groove 22---reverser mounting hole 30---spline sliding sleeves
31---ball tunnel 32---ball orbit 33---flanges
34---mounting hole 40---ball
Embodiment
Below in conjunction with embodiment the utility model is done to describe in further detail.
A kind of ball spline transmitting assemblies of the utility model; Comprise ball spline shaft 10, a plurality of ball 40 and spline sliding sleeve 30; The ball spline pair is between the ball orbit of the outer teeth groove of ball spline shaft 10 and spline sliding sleeve 30 internal surfaces; The three forms main transmission structure, thereby reaches the torque drive of main precision.
Shown in Fig. 1-1, Fig. 1-2 and Fig. 1-3; Be provided with many axial ball tunnels 31 that are uniformly distributed with diametrically in the wall of said spline sliding sleeve 30; The inwall of said spline sliding sleeve 30 is provided with many ball orbits 32; Ball orbit 32 is identical with the bar number in ball tunnel 31, and is distributed in respectively that identical footpath makes progress; The two ends of said spline sliding sleeve 30 are fixed with reverser 20 respectively, and each reverser 20 is provided with a plurality of arc grooves 21 that are uniformly distributed with diametrically with the surface of contact of said spline sliding sleeve 30; The number of arc groove 21 is identical with the bar number in ball tunnel 31; As shown in Figure 2, the number of teeth of said ball spline shaft 10 is identical with the bar number in ball tunnel 31; When ball spline shaft 10 assembles with spline sliding sleeve 30; Let ball spline shaft teeth groove 11 align with ball orbit 32; According to designing requirement in every ball tunnel 31 or by the ball 40 of the requirement of packing in ball spline shaft teeth groove 11 and the ball orbit that the aligns 32 formed ball slideways; The reverser 20 at two ends is installed then; Make arc groove 21 on reverser 20 end faces back of aliging with ball spline shaft teeth groove 11 and ball orbit 32 with screw that it is fastening in reverser mounting hole 22; Make after ball spline shaft 10, spline sliding sleeve 30 and the reverser 20 threes assembling that a ball spline shaft teeth groove 11, an arc groove 21, a ball orbit 32 and a ball tunnel 31 connect and form a ball stroke loop.Be to be example in this mode of execution to have 8 ball stroke loops, after the assembling of the utility model ball spline transmitting assemblies, as shown in Figure 3; The ball of some all is housed in each stroke loop; That is: the ball 40 of eight row high precision in the clamping in the high ball stroke loop of eight precision of having of corresponding symmetry, and in transmission process, ball 40 therebetween can be orderly smoothly; The work that moves in circles, the transmission that its centering precision is high, highly sensitive, do not have the precision creeped, can guarantee; Stable drive; Driving torque is big, bearing capacity is strong, vibrations are little.
For the utility model assembly is fixed on the working position, said spline sliding sleeve 30 is provided with mounting flange 33, on flange, is provided with mounting hole 34.Said spline sliding sleeve 30, said ball spline shaft 10 and said reverser 20 are provided with lubricating structure, make the transmission effect of whole transmitting assemblies more effective, and its transmission wear-resisting property is good, friction factor is little, long service life.
The ball spline pair that the utility model forms has obtained improving significantly in the hardness of ball spline shaft 10, spline sliding sleeve 30 and reverser 20 3 big vitals; Strengthen wear-resisting property, overcome the weakness of conventional spline axle quick abrasion in the existing technology.
Although top combination figure is described the utility model; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the utility model.
Claims (4)
1. a ball spline transmitting assemblies comprises ball spline shaft (10), a plurality of ball (40) and spline sliding sleeve (30), it is characterized in that:
Be provided with many axial ball tunnels (31) that are uniformly distributed with diametrically in the wall of said spline sliding sleeve (30); The inwall of said spline sliding sleeve (30) is provided with many ball orbits (32); Ball orbit (32) is identical with the bar number of ball tunnel (31), and is distributed in respectively that identical footpath makes progress;
The two ends of said spline sliding sleeve (30) are fixed with reverser (20) respectively, and each reverser (20) is provided with a plurality of arc grooves (21) that are uniformly distributed with diametrically with the surface of contact of said spline sliding sleeve (30);
The number of arc groove (21) is identical with the bar number of ball tunnel (31); The number of teeth of said ball spline shaft is identical with the bar number of ball tunnel (31);
One ball spline shaft teeth groove, an arc groove (21), a ball orbit (32) and a ball tunnel (31) connect and form a ball stroke loop, and said a plurality of balls (40) are located in the said stroke loop.
2. a kind of ball spline transmitting assemblies according to claim 1 is characterized in that: said ball stroke loop is 8.
3. a kind of ball spline transmitting assemblies according to claim 1 is characterized in that: said spline sliding sleeve (30) is provided with mounting flange (33).
4. a kind of ball spline transmitting assemblies according to claim 1 is characterized in that: said spline sliding sleeve (30), said ball spline shaft (10) and said reverser (20) are provided with lubricating structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202977037U CN202194957U (en) | 2011-08-16 | 2011-08-16 | Ball spline transmission assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202977037U CN202194957U (en) | 2011-08-16 | 2011-08-16 | Ball spline transmission assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194957U true CN202194957U (en) | 2012-04-18 |
Family
ID=45949871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202977037U Expired - Lifetime CN202194957U (en) | 2011-08-16 | 2011-08-16 | Ball spline transmission assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194957U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438734A (en) * | 2016-12-16 | 2017-02-22 | 四川剑涧机械设备有限公司 | Straight track spline |
| CN110273993A (en) * | 2019-07-14 | 2019-09-24 | 上海保良精密传动设备有限公司 | A kind of end cap recycles four channel ball spline pairs and processing technology |
| CN110345218A (en) * | 2019-07-14 | 2019-10-18 | 上海保良精密传动设备有限公司 | A kind of end cap recycles two channel ball spline pairs and processing technology |
-
2011
- 2011-08-16 CN CN2011202977037U patent/CN202194957U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438734A (en) * | 2016-12-16 | 2017-02-22 | 四川剑涧机械设备有限公司 | Straight track spline |
| CN110273993A (en) * | 2019-07-14 | 2019-09-24 | 上海保良精密传动设备有限公司 | A kind of end cap recycles four channel ball spline pairs and processing technology |
| CN110345218A (en) * | 2019-07-14 | 2019-10-18 | 上海保良精密传动设备有限公司 | A kind of end cap recycles two channel ball spline pairs and processing technology |
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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: 20120418 |
|
| CX01 | Expiry of patent term |