CN217355438U - Rotary ball spline shaft - Google Patents
Rotary ball spline shaft Download PDFInfo
- Publication number
- CN217355438U CN217355438U CN202220797461.6U CN202220797461U CN217355438U CN 217355438 U CN217355438 U CN 217355438U CN 202220797461 U CN202220797461 U CN 202220797461U CN 217355438 U CN217355438 U CN 217355438U
- Authority
- CN
- China
- Prior art keywords
- ball
- ball spline
- shaped plate
- spline shaft
- groove
- 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 - Fee Related
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 21
- 239000010959 steel Substances 0.000 abstract description 21
- 239000000428 dust Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 11
- 238000005096 rolling process Methods 0.000 abstract description 8
- 230000033001 locomotion Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000010405 clearance mechanism Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Bearings For Parts Moving Linearly (AREA)
Abstract
The utility model discloses a rotary ball spline shaft, which comprises a shaft body and a sleeve body, wherein a ball groove is arranged on the shaft body in an annular array, and both ends of the sleeve body are provided with cleaning mechanisms; the cleaning mechanism comprises circular rings at two ends of the sleeve body, lugs arranged on the inner wall of the circular rings in an annular array mode, a U-shaped plate arranged on one side, far away from the circular rings, of the lugs, and a sliding block arranged at the bottom of the U-shaped plate and matched with the spherical groove. Through the ring that sets up, the lug, U-shaped board and slider isotructure, can be at the rolling in-process of cover internal portion steel ball along the ball inslot, the slider can slide in the ball inslot portion in advance, foreign matters such as the dust to the ball inslot portion are cleared up, improve the clean degree of ball inslot portion, avoid the steel ball to adhere to on the surface of steel ball at the rolling in-process dust of ball inslot portion, prevent that the dust from entering into the inside normal work that influences the ball spline of circulating device along with the steel ball, the normal work of ball spline has been ensured.
Description
Technical Field
The utility model relates to the field of automobiles, especially, relate to rotation type ball spline shaft.
Background
The rolling spline pair is a linear motion system, and when the spline sleeve moves linearly on the spline shaft which is subjected to precise grinding by using the steel balls in the spline sleeve, torque can be transmitted. The spline pair has a compact structure, can transmit excessive load and power, has a long service life, and the ball spline connection is particularly suitable for the axial movement of the hub or the outer sleeve on the shaft under the action of load, and at the moment, the bearing capacity of the ball spline connection is several times higher than that of the common spline connection with the same contour dimension. The rotary ball spline is operated by installing a special bearing sleeve on the outer diameter of the spline outer cylinder. By rotating or stopping the outer cylinder, 2 (rotational, linear) modes of motion can be performed with only one shaft.
According to the Chinese patent with the publication number of CN208764260U, a ball spline device and a ball spline assembly belong to the field of transmission devices. The ball spline device comprises a spline shaft, an outer barrel, a plurality of balls and two ring covers, wherein the outer wall of the spline shaft is provided with a plurality of first ball grooves, the outer barrel is sleeved on the spline shaft in a sliding mode, the two ring covers are respectively installed at two ends of the outer barrel, the inner wall of the outer barrel is provided with a second ball groove corresponding to the first ball grooves, the first ball grooves and the second ball grooves are matched to form ball channels, circulation channels corresponding to the ball channels are arranged in the outer barrel, return channels corresponding to the circulation channels are respectively arranged in the two ring covers, and the corresponding ball channels, the circulation channels and the return channels are matched to form ball circulation paths; the outer cylinder is provided with an oil cavity for storing lubricating oil and a communication hole for communicating the oil cavity with each circulation channel, and the communication hole is provided with a lubricating component which can move along the radial direction to communicate or cut off the oil cavity with each circulation channel. The utility model provides a ball spline device has the advantage that lubricating property is good. The utility model also provides a ball spline subassembly. But current ball spline is at the in-process that uses, and the ball groove on the axis body is inside may to have foreign matter such as dust, and the steel ball in the outer sleeve carries out rolling in-process along the ball groove and probably leads to the steel ball surface to be infected with impurity, makes impurity enter into steel ball circulating device's inside, influences ball spline's normal work, even when the foreign matter too big even can directly lead to ball spline to break down. Therefore, a rotary ball spline shaft is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art not enough, the utility model provides a rotation type ball spline shaft, ring through setting up, the lug, U-shaped board and slider isotructure, can be at the inside rolling in-process of cover body steel ball along the ball inslot, the slider can slide in the ball inslot portion in advance, foreign matters such as the dust to the ball inslot portion are cleared up, improve the inside clean degree of ball inslot, avoid the steel ball to adhere to at the rolling in-process dust of ball inslot portion on the surface of steel ball, prevent that the dust from entering into the inside normal work that influences ball spline of circulating device along with the steel ball, ball spline's normal work has been ensured.
In order to solve the technical problem, the utility model provides a following technical scheme: the rotary ball spline shaft comprises a shaft body and a sleeve body, wherein ball grooves are annularly arrayed on the shaft body, and both ends of the sleeve body are provided with cleaning mechanisms;
the cleaning mechanism comprises circular rings at two ends of the sleeve body, lugs arranged on the inner wall of the circular rings in an annular array mode, a U-shaped plate arranged on one side, far away from the circular rings, of the lugs, and a sliding block arranged at the bottom of the U-shaped plate and matched with the spherical groove.
As a preferred technical scheme of the utility model, U-shaped plate top all is provided with the sleeve, the circular slot has been seted up to the lug inside, and circular slot bottom center is provided with first lead screw, first nut is installed to the tip of first lead screw, two liang of settings of lug are a set of, the lug is kept away from one side of ring and has been seted up the draw-in groove.
As a preferred technical scheme of the utility model, first lead screw is located and is equipped with first packing ring by the cover between sleeve and the first nut.
As a preferred technical scheme of the utility model, the equal annular array in cover body both ends has the second lead screw, the through-hole with second lead screw looks adaptation is seted up to the ring, the second nut is installed to second lead screw tip.
As an optimized technical scheme of the utility model, the second lead screw is located and is equipped with the second packing ring by the cover between ring and the second nut.
As a preferred technical scheme of the utility model, the width of draw-in groove equals with the thickness at U-shaped board both ends.
Compared with the prior art, the utility model discloses the beneficial effect that can reach is:
1. through the arrangement of the structures such as the circular ring, the convex block, the U-shaped plate and the sliding block, the sliding block can slide in the ball groove in advance in the process that the steel ball inside the sleeve body rolls along the inside of the ball groove, foreign matters such as dust in the ball groove are cleaned, the cleaning degree of the inside of the ball groove is improved, the dust is prevented from being attached to the surface of the steel ball in the process that the steel ball rolls in the ball groove, the dust is prevented from entering the circulating device along with the steel ball to influence the normal work of the ball spline, and the normal work of the ball spline is guaranteed;
2. through sleeve, circular slot, first lead screw, first nut and draw-in groove isotructure that set up, adopt the detachable mode to link together slider and ring, can change the slider when the dust on the slider is too much or slider wearing and tearing are serious, improved the maintainability performance in slider isotructure later stage, prolonged the life of clearance mechanism.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the three-dimensional structure of the ring of the present invention;
FIG. 4 is a schematic view of the structure at A of FIG. 1 according to the present invention;
fig. 5 is a schematic structural diagram of the point B in fig. 3 according to the present invention.
Wherein: 1. a shaft body; 2. a sleeve body; 3. a ball groove; 4. a circular ring; 5. a bump; 6. a U-shaped plate; 7. a slider; 8. a sleeve; 9. a circular groove; 10. a first lead screw; 11. a first nut; 12. a card slot; 13. a second lead screw; 14. a through hole; 15. a second nut.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
Example (b):
as shown in fig. 1-5, the rotary ball spline shaft comprises a shaft body 1 and a sleeve body 2, wherein ball grooves 3 are annularly arrayed on the shaft body 1, and both ends of the sleeve body 2 are provided with cleaning mechanisms;
the cleaning mechanism comprises circular rings 4 positioned at two ends of the sleeve body 2, lugs 5 annularly arrayed on the inner wall of the circular rings 4, a U-shaped plate 6 arranged on one side of the lugs 5 far away from the circular rings 4, and a sliding block 7 arranged at the bottom of the U-shaped plate 6 and matched with the ball groove 3;
at the rotatory in-process that makes the ball spline shaft use, the inside steel ball of the cover body 2 carries out linear motion along ball groove 3, drive the 4 synchronous motion of ring of both sides, thereby it slides at the inside removal of ware along ball groove 3 to drive slider 7, ring 4 through setting up, lug 5, U-shaped plate 6 and slider 7 isotructures, can be at the inside rolling in-process of the inside steel ball of the cover body 2 along ball groove 3, slider 7 can slide in ball groove 3 inside in advance, foreign matters such as the dust of ball groove 3 inside are cleared up, improve the inside clean degree of ball groove 3, avoid the steel ball to adhere to on the surface of steel ball at the inside rolling in-process dust of ball groove 3, prevent that the dust from entering into the inside normal work that influences the ball spline of circulating device along with the steel ball, the normal work of ball spline has been ensured.
In other embodiments, the top of each U-shaped plate 6 is provided with a sleeve 8, a circular groove 9 is formed inside each bump 5, the center of the bottom of each circular groove 9 is provided with a first lead screw 10, the end of each first lead screw 10 is provided with a first nut 11, the bumps 5 are arranged in pairs to form a group, and one side of each bump 5, which is far away from the circular ring 4, is provided with a clamping groove 12;
with sleeve 8 cover on first lead screw 10, remove U-shaped plate 6 after that, make sleeve 8 and U-shaped plate 6's both ends put into circular slot 9 and draw-in groove 12 respectively, install first nut 11 on first lead screw 10 after that, thereby install U-shaped plate 6 and slider 7 inside ring 4, through the sleeve 8 that sets up, circular slot 9, first lead screw 10, first nut 11 and draw-in groove 12 isotructure, adopt the detachable mode to link together slider 7 and circular ring 4, can change slider 7 when the dust on slider 7 is too much or slider 7 wearing and tearing are serious, the maintainability ability in the later stage of slider 7 isotructure has been improved, the life of clearance mechanism has been prolonged.
In other embodiments, the first lead screw 10 is sleeved with a first washer between the sleeve 8 and the first nut 11; wear due to direct contact between the first nut 11 and the sleeve 8 is avoided.
In other embodiments, the two ends of the sleeve body 2 are annularly arrayed with the second screw rods 13, the circular ring 4 is provided with through holes 14 matched with the second screw rods 13, and the end parts of the second screw rods 13 are provided with second screw caps 15; align through-hole 14 and second lead screw 13, install second nut 15 on second lead screw 13 after that to install ring 4 at the both ends of the cover body 2, realized dismantling between ring 4 and the cover body 2, change when ring 4 structural damage, the maintenance in the later stage of being convenient for.
In other embodiments, a second gasket is sleeved on the second lead screw 13 between the ring 4 and the second nut 15; the second nut 15 is prevented from being worn by direct contact with the surface of the ring 4.
In other embodiments, the width of the slot 12 is equal to the thickness of the two ends of the U-shaped plate 6; the two sides of the U-shaped plate 6 are directly attached to the side walls of the clamping groove 12, and the sleeve 8 and the circular groove 9 can be matched to improve the firmness of installation of the U-shaped plate 6.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
It should be noted that, the electric components in the technical solution of the present application, such as the power unit, the first motor, the second motor, and the like, are all connected to the external controller, and the external controller is in the prior art, and the technical solution of the present application does not improve the electric components, so that the specific model, the circuit structure, and the like of the external controller do not need to be disclosed, and the integrity of the technical solution of the present application is not affected.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. Rotation type ball spline shaft, including axis body (1) and the cover body (2), its characterized in that: ball grooves (3) are annularly arrayed on the shaft body (1), and cleaning mechanisms are arranged at two ends of the sleeve body (2);
the cleaning mechanism comprises a circular ring (4) positioned at two ends of the sleeve body (2), a convex block (5) which is arranged on the inner wall of the circular ring (4) in an annular array mode, a U-shaped plate (6) which is arranged on one side, far away from the circular ring (4), of the convex block (5) and a sliding block (7) which is arranged at the bottom of the U-shaped plate (6) and matched with the spherical groove (3).
2. The rotary ball spline shaft of claim 1, wherein: the improved U-shaped plate is characterized in that a sleeve (8) is arranged at the top of the U-shaped plate (6), a circular groove (9) is formed in the bump (5), a first screw rod (10) is arranged at the center of the bottom of the circular groove (9), a first nut (11) is installed at the end of the first screw rod (10), the bump (5) is arranged in a group in a pairwise mode, and a clamping groove (12) is formed in one side, away from the circular ring (4), of the bump (5).
3. The rotary ball spline shaft of claim 2, wherein: a first gasket is sleeved between the sleeve (8) and the first screw cap (11) of the first screw rod (10).
4. The rotary ball spline shaft of claim 1, wherein: the two ends of the sleeve body (2) are provided with second screw rods (13) in an annular array mode, through holes (14) matched with the second screw rods (13) are formed in the circular ring (4), and second screw caps (15) are installed at the end portions of the second screw rods (13).
5. The rotary ball spline shaft of claim 4, wherein: and a second gasket is sleeved between the circular ring (4) and the second screw cap (15) of the second screw rod (13).
6. The rotary ball spline shaft of claim 2, wherein: the width of the clamping groove (12) is equal to the thickness of the two ends of the U-shaped plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220797461.6U CN217355438U (en) | 2022-04-08 | 2022-04-08 | Rotary ball spline shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220797461.6U CN217355438U (en) | 2022-04-08 | 2022-04-08 | Rotary ball spline shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355438U true CN217355438U (en) | 2022-09-02 |
Family
ID=83055683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220797461.6U Expired - Fee Related CN217355438U (en) | 2022-04-08 | 2022-04-08 | Rotary ball spline shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355438U (en) |
-
2022
- 2022-04-08 CN CN202220797461.6U patent/CN217355438U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220902 |