CN117145882B - Zxfoom spline shaft spline shaft Assembly vehicle and method for manufacturing the same - Google Patents
Zxfoom spline shaft spline shaft Assembly vehicle and method for manufacturing the same Download PDFInfo
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- CN117145882B CN117145882B CN202311404877.2A CN202311404877A CN117145882B CN 117145882 B CN117145882 B CN 117145882B CN 202311404877 A CN202311404877 A CN 202311404877A CN 117145882 B CN117145882 B CN 117145882B
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- 238000000034 method Methods 0.000 title abstract description 7
- 238000004519 manufacturing process Methods 0.000 title description 8
- 238000007789 sealing Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000000758 substrate Substances 0.000 abstract 1
- 230000008569 process Effects 0.000 description 4
- 238000005242 forging Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses ball bearing a spline shaft assembly and a vehicle, comprising the method comprises the following steps: the spline shaft comprises a first shaft section body, a second shaft section body and a third shaft section body, the first shaft section body is provided with a first through hole, first shaft section there is a first through-hole in the substrate, the cross section area of the third shaft section body is larger than that of the first shaft section body, the minimum outer diameter of the first shaft section body is D1, the inner diameter of the first shaft section body is D1, the wall thickness of the first shaft section body is h1, the wall thickness of the third shaft section body is h2, h2 is more than 1.2h2 and less than or equal to 2h2, d1=d1-2 h1. Therefore, the spline shaft can be constructed as a hollow shaft, the weight of the spline shaft can be reduced, the material utilization rate is improved, the lightweight design of the spline shaft is facilitated, and the structural strength of the spline shaft can be improved through 1.2h2 < h1 < 2h2, d1=d1-2 h1, so that the service life of the spline shaft can be prolonged.
Description
Technical Field
The invention relates to the field of spline shafts, in particular to a ball spline shaft assembly and a vehicle.
Background
In the related art, the existing ball spline shaft is heavy and low in material utilization rate, and the overall structural strength of the ball spline shaft is poor, so that the service life of the ball spline shaft is influenced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a ball spline shaft assembly, which can reduce the weight of the spline shaft, improve the material utilization rate, facilitate the lightweight design of the spline shaft, and prolong the service life of the spline shaft.
The invention further provides a vehicle.
The ball spline shaft assembly according to the present invention includes:
the spline shaft comprises a first shaft section body, a second shaft section body and a third shaft section body, wherein the second shaft section body is connected between the first shaft section body and the third shaft section body, the first shaft section body is provided with a first through hole penetrating through the first shaft section body along the axial direction of the spline shaft, the second shaft section body is provided with a second through hole penetrating through the second shaft section body along the axial direction of the spline shaft, the third shaft section body is provided with a third through hole penetrating through the third shaft section body along the axial direction of the spline shaft, the second through holes are communicated with the first through hole and the third through hole, the cross section area of the third shaft section body is larger than the cross section area of the first shaft section body, and the cross section area of the second shaft section body gradually increases from the first shaft section body to the third shaft section body, wherein the minimum outer diameter of the first shaft section body is D1, the inner diameter of the first shaft section body is D1, the wall thickness of the first shaft section body is h1, and the wall thickness of the third shaft section body is h2 is as expressed by the following formula: h2 is 1.2h1 is less than or equal to 2h2, d1=d1-2 h1.
According to the ball spline shaft assembly, the spline shaft can be constructed into the hollow shaft by arranging the first through hole, the second through hole and the third through hole, so that the weight of the spline shaft can be reduced, the material utilization rate is improved, the lightweight design of the spline shaft is facilitated, and the structural strength of the spline shaft can be improved through 1.2h2 < h1.ltoreq.2h2 and d1=d1-2 h1, so that the service life of the spline shaft can be prolonged.
In some examples of the present invention, the second shaft segment has a wall thickness h3 that satisfies the relationship: h2 is more than 3 and less than or equal to h1.
In some examples of the invention, the second shaft segment extends obliquely toward a radially outer side of the spline shaft from the first shaft segment to the third shaft segment.
In some examples of the invention, the cross-sectional area of the second through hole increases gradually from the first shaft section to the third shaft section.
In some examples of the invention, the cross-sectional area of the second via near the first via end is equal to the cross-sectional area of the first via, and the cross-sectional area of the second via near the third via end is equal to the cross-sectional area of the third via.
In some examples of the invention, the central axis of the first through hole, the central axis of the second through hole, and the central axis of the third through hole are collinear.
In some examples of the invention, the ball spline shaft assembly further comprises: and a sealing plug mounting hole section is formed at the end part of the first through hole, which is far away from the second shaft section body, and the sealing plug is mounted in the sealing plug mounting hole section.
In some examples of the invention, the ball spline shaft assembly further comprises: the ball mounting groove sets comprise at least one ball mounting groove, one end of the connecting shaft is mounted in the third through hole, the ball mounting groove sets are correspondingly arranged with the corresponding ball channel, and the ball is mounted in the corresponding ball channel and the corresponding ball mounting groove.
In some examples of the present invention, the plurality of ball tracks are sequentially arranged along the circumferential direction of the third through hole, the ball mounting groove groups are sequentially arranged along the circumferential direction of the connecting shaft, the ball mounting groove groups are respectively corresponding to the ball tracks, and the balls are respectively arranged in each ball mounting groove and each ball track.
In some examples of the invention, the ball spline shaft assembly further comprises: the annular retainer, the retainer cover is located the connecting axle outside just is located between the periphery wall of connecting axle and the inner peripheral wall of third through hole, the retainer is formed with the spin mounting hole, the spin mounting hole with correspond the lane with correspond the spin mounting groove sets up, the spin install in the spin mounting hole.
In some examples of the present invention, the cage is formed with a plurality of rows of ball mounting hole groups, the plurality of rows of ball mounting hole groups being sequentially arranged in a circumferential direction of the connection shaft, the plurality of rows of ball mounting hole groups, the plurality of ball channels, and the plurality of rows of ball mounting groove groups being in one-to-one correspondence, each row of ball mounting hole groups including at least one ball mounting hole.
In some examples of the present invention, the outer circumferential wall of the connecting shaft is formed with a first mounting groove, and a portion of the retainer is mounted in the first mounting groove.
In some examples of the present invention, a limiting end surface is formed on the end of the ball channel, which is close to the second shaft section body, along the axial direction of the spline shaft, wherein the limiting end surface is suitable for abutting and limiting with the retainer.
In some examples of the invention, the ball spline shaft assembly further comprises: the annular first check ring, the third through hole is kept away from the tip of second shaft section body is formed with the second mounting groove, first check ring install in the second mounting groove, first check ring cover is located the connecting axle outside, first check ring be suitable for with the spin butt is in order to restrict the connecting axle shifts out the third through hole.
The vehicle according to the invention comprises the ball spline shaft assembly.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a cross-sectional view of a spline shaft according to an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of a spline shaft according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a spline shaft and connecting shaft assembly according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
fig. 5 is an enlarged view at B in fig. 3.
Reference numerals:
100 ball spline shaft assembly;
10 spline shaft;
11 a first shaft section; 111 a first via; 112 sealing plug mounting hole section;
12 second shaft segment; 121 a second through hole;
13 a third shaft segment; 131 a third through hole; 132 fairway; 133 limit end faces; 134 a second mounting slot;
20 a sealing plug;
30 connecting shafts; 31 ball mounting slots; 32 a first mounting groove; 34 avoiding the notch;
a 40 ball;
50 a retainer; 51 ball mounting holes;
60 a first retainer ring.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
A ball spline shaft assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.
As shown in fig. 1 and 2, a ball spline shaft assembly 100 according to an embodiment of the present invention includes: the spline shaft 10, the spline shaft 10 includes a first shaft segment 11, a second shaft segment 12 and a third shaft segment 13, the second shaft segment 12 is connected between the first shaft segment 11 and the third shaft segment 13, the first shaft segment 11 has a first through hole 111 penetrating the first shaft segment 11 along the axial direction of the spline shaft 10, the second shaft segment 12 has a second through hole 121 penetrating the second shaft segment 12 along the axial direction of the spline shaft 10, the third shaft segment 13 has a third through hole 131 penetrating the third shaft segment 13 along the axial direction of the spline shaft 10, the second through hole 121 communicates with the first through hole 111 and the third through hole 131, the cross-sectional area of the third shaft segment 13 is larger than the cross-sectional area of the first shaft segment 11, and the cross-sectional area of the second shaft segment 12 gradually increases from the first shaft segment 11 to the third shaft segment 13, wherein the minimum outer diameter of the first shaft segment 11 is D1, the inner diameter of the first shaft segment 11 is D1, the wall thickness of the first shaft segment 11 is h1, and the wall thickness of the third shaft segment 13 is h2, satisfying the relation: h2 is 1.2h1 is less than or equal to 2h2, d1=d1-2 h1.
The spline shaft 10 includes a first shaft segment 11, a second shaft segment 12, and a third shaft segment 13, the second shaft segment 12 is located between the first shaft segment 11 and the third shaft segment 13, two ends of the second shaft segment 12 are located between the first shaft segment 11 and the third shaft segment 13, the first shaft segment 11 has a first through hole 111, the first through hole 111 penetrates the first shaft segment 11 along an axial direction of the spline shaft 10, the second shaft segment 12 has a second through hole 121, the second through hole 121 penetrates the second shaft segment 12 along an axial direction of the spline shaft 10, the third shaft segment 13 has a third through hole 131, the third through hole 131 penetrates the third shaft segment 13 along an axial direction of the spline shaft 10, the second through hole 121 is communicated with the first through hole 111 and the third through hole 131, and the first through hole 111, the second through hole 121, and the third through hole 131 may be circular holes. By providing the first through hole 111, the second through hole 121, and the third through hole 131, compared with the prior art, the spline shaft 10 can be made into a hollow shaft, the weight of the spline shaft 10 can be reduced, the material utilization rate can be improved, the lightweight design of the spline shaft 10 can be facilitated, and the manufacturing cost of the spline shaft 10 can be reduced due to the reduction of the manufacturing material of the spline shaft 10.
As shown in fig. 1, the cross-sectional area of the third shaft section 13 is larger than that of the first shaft section 11, and the cross-sectional area of the second shaft section 12 gradually increases from the first shaft section 11 to the third shaft section 13, so that the overall structural strength of the spline shaft 10 can be improved, and the service life of the spline shaft 10 can be prolonged. The minimum outer diameter of the first shaft section 11 is D1, the inner diameter of the first shaft section 11 is D1, it can be understood that the inner diameter of the first through hole 111 is D1, the wall thickness of the first shaft section 11 is h1, and the wall thickness of the third shaft section 13 is h2, which satisfies the relationship: 1.2h2 < h1.ltoreq.2h2, d1=d1-2 h1, for example: h1 is 1.3h2, 1.4h2, 2h2, etc. By satisfying the relation 1.2h2 < h1.ltoreq.2h2 and d1=d1-2 h1, the structural strength of the spline shaft 10 can be further improved, and the service life of the spline shaft 10 can be further prolonged. Further, the outer diameter of the third shaft section 13 is D2, the inner diameter of the third shaft section 13 is D2, and it is also understood that the inner diameter of the third through hole 131 is D2, D1 < D2, and D1 < D2.
Therefore, by arranging the first through hole 111, the second through hole 121 and the third through hole 131, the spline shaft 10 can be constructed as a hollow shaft, the weight of the spline shaft 10 can be reduced, the material utilization rate is improved, the lightweight design of the spline shaft 10 is facilitated, and the structural strength of the spline shaft 10 can be improved through 1.2h2 < h1.ltoreq.2h2, d1=d1-2 h1, so that the service life of the spline shaft 10 can be prolonged.
In some embodiments of the present invention, as shown in fig. 1, the wall thickness of the second shaft segment 12 is h3, satisfying the relationship: h2 is more than 3 and less than or equal to h1. Wherein, through 1.2h2 < h1.ltoreq.2h2, d1=d1-2 h1, h2 < h3.ltoreq.h1, the wall thickness of the first shaft section 11 and the second shaft section 12 is suitable, the structural strength of the spline shaft 10 can be further improved, and the service life of the spline shaft 10 can be further prolonged.
In some embodiments of the present invention, the first shaft section 11, the second shaft section 12 and the third shaft section 13 are integrally formed, so that the processing flow can be reduced, the cost in the processing process can be reduced, and the production cost of the spline shaft 10 can be reduced.
In some embodiments of the present invention, as shown in fig. 1, the second shaft segment 12 extends obliquely toward the radially outer side of the spline shaft 10 from the first shaft segment 11 to the third shaft segment 13. Along the axial direction of the spline shaft 10, from the direction from the first shaft section 11 to the third shaft section 13, the second shaft section 12 extends obliquely towards the radial outer side of the spline shaft 10, so that the second shaft section 12 can be made to be of a frustum-shaped structure, and since the outer diameter of the third shaft section 13 is larger than that of the first shaft section 11, the transition connection from the first shaft section 11 to the third shaft section 13 can be realized through the oblique extension of the second shaft section 12 towards the radial outer side of the spline shaft 10, and the structural strength of the spline shaft 10 is improved.
In some embodiments of the present invention, as shown in fig. 1, the cross-sectional area of the second through hole 121 gradually increases from the first shaft section 11 to the third shaft section 13. Wherein, along the axial direction of the spline shaft 10, from the first shaft section 11 to the third shaft section 13, the cross-sectional area of the second through hole 121 gradually increases, so that the thickness of the second shaft section 12 can be uniform, and the structural strength of the spline shaft 10 can be further improved.
In some embodiments of the present invention, as shown in fig. 1, the cross-sectional area of the end portion of the second through hole 121 near the first through hole 111 is equal to the cross-sectional area of the first through hole 111, and the cross-sectional area of the end portion of the second through hole 121 near the third through hole 131 is equal to the cross-sectional area of the third through hole 131.
In some embodiments of the present invention, as shown in fig. 1, the central axis of the first through hole 111, the central axis of the second through hole 121, and the central axis of the third through hole 131 are collinear. Wherein, along the axial direction of the spline shaft 10, the central axis of first through-hole 111, the central axis of second through-hole 121 and the central axis collineation setting of third through-hole 131, set up like this and can promote first through-hole 111, second through-hole 121 and third through-hole 131 axiality, can be convenient for process first through-hole 111, second through-hole 121 and third through-hole 131 more, further reduce the spline shaft 10 production degree of difficulty, can further promote spline shaft 10 production efficiency.
In some embodiments of the present invention, as shown in FIG. 1, the ball spline shaft assembly 100 may further include: the end of the first through hole 111, which is far away from the second shaft section body 12, of the sealing plug 20 is formed with a sealing plug mounting hole section 112, and the sealing plug 20 is mounted in the sealing plug mounting hole section 112. Wherein, sealing plug 20 can be the rubber plug, and the one end that second shaft section body 12 was kept away from to first shaft section body 11 can be connected with the ball cage universal joint, has grease in the ball cage universal joint, through installing sealing plug 20 in sealing plug mounting hole section 112, sealing plug 20 can shutoff first through-hole 111 keep away from the open end of second shaft section body 12 to make first through-hole 111 keep away from the open end of second shaft section body 12 and seal, can avoid the grease that has in the ball cage universal joint to flow into in the integral key shaft 10 from first through-hole 111.
Further, the outer circumferential wall of the first shaft segment 11 may be provided with external splines, and the external splines of the first shaft segment 11 may be fitted with the star cover of the ball-and-socket joint, so that the end of the first shaft segment 11 remote from the second shaft segment 12 may be connected with the ball-and-socket joint.
In some embodiments of the present invention, as shown in fig. 3 and 4, the ball spline shaft assembly 100 may further include: the connecting shaft 30 and the ball 40, the inner peripheral wall of the third through hole 131 is formed with a ball channel 132 extending along the axial direction of the spline shaft 10, the outer peripheral wall of the connecting shaft 30 is formed with at least one row of ball mounting groove groups, each row of ball mounting groove groups comprises at least one ball mounting groove 31, one end of the connecting shaft 30 is mounted in the third through hole 131, the ball mounting groove groups are correspondingly arranged with the corresponding ball channel 132, and the ball 40 is mounted in the corresponding ball channel 132 and the corresponding ball mounting groove 31. Wherein, the ball 40 is the sphere shape, the periphery wall of connecting axle 30 is formed with at least one row of ball mounting groove group, every row of ball mounting groove group can include a plurality of ball mounting groove 31, a plurality of ball mounting groove 31 in every row of ball mounting groove group are arranged in proper order along the axial of spline shaft 10, the tip that the second shaft section body 12 was kept away from third through hole 131 to one end of connecting axle 30 is installed in third through hole 131, ball 40 installs in corresponding lane 132 and corresponding ball mounting groove 31, ball 40 can with the inner wall of ball mounting groove 31 and the inner wall contact of lane 132. When the connecting shaft 30 moves along the axial direction of the spline shaft 10, the rolling ball 40 contacts with the inner wall of the rolling ball mounting groove 31 and the inner wall of the ball channel 132, so that the movement of the connecting shaft 30 can be guided, the axial movement of the connecting shaft 30 along the spline shaft 10 is ensured, the connecting shaft 30 is smoothly moved along the axial direction of the spline shaft 10, and the clamping stagnation phenomenon of the connecting shaft 30 and the spline shaft 10 is further prevented.
In some embodiments of the present invention, as shown in fig. 3 and 4, the ball channels 132 are plural, the plural ball channels 132 are sequentially arranged along the circumference of the third through hole 131, the ball mounting groove sets are plural rows, the plural row ball mounting groove sets are sequentially arranged along the circumference of the connecting shaft 30, the plural row ball mounting groove sets correspond to the respective ball channels 132, and the ball 40 is disposed in each ball mounting groove 31 and the respective ball channel 132. Further, the ball channels 132 are sequentially and uniformly arranged along the circumferential direction of the third through hole 131, the ball mounting groove groups are sequentially and uniformly arranged along the circumferential direction of the connecting shaft 30, the ball mounting groove groups correspond to the corresponding ball channels 132 respectively, and the balls 40 are arranged in each ball mounting groove 31 and the corresponding ball channel 132. When the connecting shaft 30 moves along the axial direction of the spline shaft 10, the plurality of balls 40 contact with the inner wall of the corresponding ball mounting groove 31 and the inner wall of the corresponding ball channel 132, so that the movement of the connecting shaft 30 can be guided, the axial movement of the connecting shaft 30 along the spline shaft 10 is further ensured, the connecting shaft 30 can move along the axial direction of the spline shaft 10 more smoothly, the clamping stagnation phenomenon of the connecting shaft 30 and the spline shaft 10 is further prevented, and the plurality of balls 40 support the connecting shaft 30 along the circumferential direction of the connecting shaft 30, so that the deflection of the connecting shaft 30 can be avoided.
In some embodiments of the present invention, as shown in fig. 3 and 4, the ball spline shaft assembly 100 may further include: the annular retainer 50, the retainer 50 is sleeved outside the connecting shaft 30 and is located between the outer peripheral wall of the connecting shaft 30 and the inner peripheral wall of the third through hole 131, the retainer 50 is formed with ball mounting holes 51, the ball mounting holes 51 are arranged corresponding to the corresponding ball channels 132 and the corresponding ball mounting grooves 31, and the balls 40 are mounted in the ball mounting holes 51. The cage 50 has an annular structure, the cage 50 is sleeved outside the connecting shaft 30, the cage 50 is located between the outer peripheral wall of the connecting shaft 30 and the inner peripheral wall of the third through hole 131, the cage 50 has a ball mounting hole 51, the ball 40 is mounted in the ball mounting hole 51, specifically, the ball 40 is threaded through the ball mounting hole 51, and the ball 40 is rotatable relative to the cage 50. By providing the cage 50, the cage 50 has a positioning function for the ball 40, so that the ball 40 can be reliably fitted between the connecting shaft 30 and the third shaft segment 13, thereby stably fitting the ball 40 to the corresponding ball channel 132 and the corresponding ball mounting groove 31.
In some embodiments of the present invention, as shown in fig. 3 and 4, the cage 50 may be formed with a plurality of ball mounting hole groups sequentially arranged in the circumferential direction of the connection shaft 30, the plurality of ball mounting hole groups and the plurality of ball mounting groove groups being in one-to-one correspondence, each ball mounting hole group including at least one ball mounting hole 51. By providing a plurality of ball mounting hole groups, a plurality of balls 40 can be mounted on the cage 50 at the same time, so that the cage 50 can position the plurality of balls 40 at the same time, and the plurality of balls 40 can be reliably mounted between the connecting shaft 30 and the third shaft section 13, so that the plurality of balls 40 can be stably mounted on the corresponding ball channel 132 and the corresponding ball mounting groove 31. The cage 50 has a positioning function for the ball 40, so that the ball 40 can be reliably fitted between the connecting shaft 30 and the third shaft segment 13, thereby stably fitting the ball 40 to the corresponding ball channel 132 and the corresponding ball mounting groove 31.
In some embodiments of the present invention, as shown in fig. 4 and 5, the outer circumferential wall of the connection shaft 30 is formed with a first mounting groove 32, and a portion of the holder 50 is mounted in the first mounting groove 32. The first mounting groove 32 may be annular, the first mounting groove 32 extends along the circumferential direction of the connecting shaft 30, a part of the structure of the retainer 50 is mounted in the first mounting groove 32, the inner side wall of the first mounting groove 32 may contact with the retainer 50, the inner side wall of the first mounting groove 32 may limit the retainer 50, and the retainer 50 may be effectively prevented from moving along the axial direction of the connecting shaft 30 relative to the connecting shaft 30, so that the ball 40 is prevented from moving relative to the position of the connecting shaft 30, and the retainer 50 may be stably mounted on the connecting shaft 30.
In some embodiments of the present invention, as shown in fig. 1, a limiting end surface 133 is formed at the end of the ball channel 132 near the second shaft section 12 along the axial direction of the spline shaft 10, and the limiting end surface 133 is adapted to abut against the retainer 50 for limiting. When the connecting shaft 30 moves into the third through hole 131, the limiting end surface 133 contacts with the retainer 50, and the limiting end surface 133 abuts against the retainer 50 to limit the connecting shaft 30 to move into the third through hole 131, so that the connecting shaft 30 is prevented from being impacted into the second shaft section 12.
In some embodiments of the present invention, as shown in fig. 3 and 5, the ball spline shaft assembly 100 may further include: the end of the third through hole 131, which is far away from the second shaft section body 12, is provided with a second mounting groove 134, the first check ring 60 is mounted in the second mounting groove 134, the first check ring 60 is sleeved outside the connecting shaft 30, and the first check ring 60 is suitable for abutting with the rolling ball 40 to limit the connecting shaft 30 to move out of the third through hole 131. Wherein, the end of the inner peripheral wall of the third through hole 131 far away from the second shaft section 12 is formed with a second mounting groove 134, a part of the structure of the first retainer ring 60 is mounted in the second mounting groove 134, the first retainer ring 60 protrudes out of the inner peripheral wall of the third through hole 131, and when the connecting shaft 30 moves towards the outside of the third through hole 131, the first retainer ring 60 can restrict the rolling ball 40 from moving out of the third through hole 131 when the first retainer ring 60 contacts with the rolling ball 40, thereby preventing the connecting shaft 30 from moving out of the third through hole 131.
In some embodiments of the present invention, as shown in fig. 3 and 5, an avoidance gap 34 is formed on the outer peripheral wall of the connecting shaft 30, the avoidance gap 34 is disposed at the end of the connecting shaft 30 near the second shaft section body 12, the avoidance gap 34 can avoid the spline shaft 10, and when the connecting shaft 30 moves to the limit position toward the third through hole 131, the avoidance gap 34 is disposed, so that the connecting shaft 30 is effectively prevented from colliding with the spline shaft 10.
The process flow of the spline shaft 10 is as follows: forging a steel tube blank, rotary forging, taking a length, cold extruding a spline for forming, grooving, heat treatment and mounting the sealing plug 20 to the sealing plug mounting hole section 112. By processing the spline shaft 10 according to the processing flow, the processing flow can be reduced, and the cost in the processing process can be reduced, thereby reducing the production cost of the spline shaft 10.
According to the vehicle of the embodiment of the present invention, the vehicle may be a new energy vehicle, and the vehicle includes the ball spline shaft assembly 100 of the above embodiment.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative 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 invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A ball spline shaft assembly, comprising:
the spline shaft comprises a first shaft section body, a second shaft section body and a third shaft section body, wherein the second shaft section body is connected between the first shaft section body and the third shaft section body, the first shaft section body is provided with a first through hole penetrating through the first shaft section body along the axial direction of the spline shaft, the second shaft section body is provided with a second through hole penetrating through the second shaft section body along the axial direction of the spline shaft, the third shaft section body is provided with a third through hole penetrating through the third shaft section body along the axial direction of the spline shaft, the second through holes are communicated with the first through hole and the third through hole, the cross section area of the third shaft section body is larger than the cross section area of the first shaft section body, and the cross section area of the second shaft section body gradually increases from the first shaft section body to the third shaft section body, wherein the minimum outer diameter of the first shaft section body is D1, the inner diameter of the first shaft section body is D1, the wall thickness of the first shaft section body is h1, and the wall thickness of the third shaft section body is h2 is as expressed by the following formula: h2 is more than 1 and less than or equal to 2h2, d1=d1-2 h1;
the wall thickness of the second shaft section body is h3, and the relation is satisfied: h2 is more than 3 and less than or equal to h1;
the central axis of the first through hole, the central axis of the second through hole and the central axis of the third through hole are collinear;
the ball spline shaft assembly further comprises a sealing plug and an annular retainer, a sealing plug mounting hole section is formed at the end part of the first through hole, which is far away from the second shaft section body, and the sealing plug is mounted in the sealing plug mounting hole section;
the retainer is sleeved outside the connecting shaft and positioned between the outer peripheral wall of the connecting shaft and the inner peripheral wall of the third through hole, the retainer is provided with a rolling ball mounting hole, the rolling ball mounting hole is correspondingly arranged with a corresponding ball channel and a corresponding rolling ball mounting groove, and a rolling ball is mounted in the rolling ball mounting hole;
a first mounting groove is formed in the outer peripheral wall of the connecting shaft, and a part of the retainer is mounted in the first mounting groove;
along the axial direction of the spline shaft, a limiting end face is formed at the end part of the ball channel, which is close to the second shaft section body, and the limiting end face is suitable for being in abutting limiting with the retainer;
the periphery wall of connecting axle is formed with dodges the breach, dodge the breach and locate the connecting axle is close to the tip of second shaft section body.
2. The ball spline shaft assembly according to claim 1, wherein said second shaft segment extends obliquely radially outward of said spline shaft from said first shaft segment to said third shaft segment.
3. The ball spline shaft assembly according to claim 1, wherein said second through bore has a cross-sectional area that gradually increases from said first shaft segment to said third shaft segment.
4. The ball spline shaft assembly according to claim 3, wherein a cross-sectional area of said second through bore proximate said first through bore end is equal to a cross-sectional area of said first through bore, and a cross-sectional area of said second through bore proximate said third through bore end is equal to a cross-sectional area of said third through bore.
5. The ball spline shaft assembly according to any one of claims 1-4, further comprising: the ball mounting groove sets comprise at least one ball mounting groove, one end of the connecting shaft is mounted in the third through hole, the ball mounting groove sets are correspondingly arranged with the corresponding ball channel, and the ball is mounted in the corresponding ball channel and the corresponding ball mounting groove.
6. The ball spline shaft assembly according to claim 5, wherein said plurality of ball tracks are arranged in sequence along a circumference of said third through hole, said plurality of ball mounting groove groups are arranged in sequence along a circumference of said connecting shaft, and said plurality of ball mounting groove groups respectively correspond to respective ball tracks, and said balls are provided in each of said ball mounting grooves and in respective ball tracks.
7. The ball spline shaft assembly according to claim 6, wherein said cage is formed with a plurality of rows of ball mounting hole sets, said plurality of rows of ball mounting hole sets being arranged in sequence along a circumferential direction of said connecting shaft, said plurality of rows of ball mounting hole sets and said plurality of rows of ball mounting groove sets being in one-to-one correspondence, each row of ball mounting hole sets including at least one of said ball mounting holes.
8. The ball spline shaft assembly according to claim 5, further comprising: the annular first check ring, the third through hole is kept away from the tip of second shaft section body is formed with the second mounting groove, first check ring install in the second mounting groove, first check ring cover is located the connecting axle outside, first check ring be suitable for with the spin butt is in order to restrict the connecting axle shifts out the third through hole.
9. A vehicle comprising a ball spline shaft assembly according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311404877.2A CN117145882B (en) | 2023-10-27 | 2023-10-27 | Zxfoom spline shaft spline shaft Assembly vehicle and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311404877.2A CN117145882B (en) | 2023-10-27 | 2023-10-27 | Zxfoom spline shaft spline shaft Assembly vehicle and method for manufacturing the same |
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| Publication Number | Publication Date |
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| CN117145882A CN117145882A (en) | 2023-12-01 |
| CN117145882B true CN117145882B (en) | 2024-02-02 |
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| CN202311404877.2A Active CN117145882B (en) | 2023-10-27 | 2023-10-27 | Zxfoom spline shaft spline shaft Assembly vehicle and method for manufacturing the same |
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| CN (1) | CN117145882B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170142735A (en) * | 2016-06-20 | 2017-12-28 | 이래에이엠에스 주식회사 | Plunging assembly for driveshaft and driveshaft including same |
| CN207864459U (en) * | 2017-12-31 | 2018-09-14 | 浙江向隆机械有限公司 | A kind of constant velocity driving shaft with set spindle-type jackshaft |
| KR20190089828A (en) * | 2019-07-25 | 2019-07-31 | 이래에이엠에스 주식회사 | Plunging assembly for driveshaft |
| WO2021157869A1 (en) * | 2020-02-07 | 2021-08-12 | 이래에이엠에스 주식회사 | Method for manufacturing tubular shaft for drive shaft having ball spline structure, and tubular shaft manufactured thereby |
| CN116198587A (en) * | 2023-03-20 | 2023-06-02 | 北京福田戴姆勒汽车有限公司 | Steering transmission shaft and vehicle with same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102067649B1 (en) * | 2018-01-22 | 2020-01-17 | 이래에이엠에스 주식회사 | Plunging assembly for driveshaft |
| KR102155835B1 (en) * | 2019-01-28 | 2020-09-14 | 이래에이엠에스 주식회사 | Plunging shaft and driveshaft assembly including same |
| US11712925B2 (en) * | 2019-07-01 | 2023-08-01 | Textron Inc. | Axial plunging half-shaft assembly |
-
2023
- 2023-10-27 CN CN202311404877.2A patent/CN117145882B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170142735A (en) * | 2016-06-20 | 2017-12-28 | 이래에이엠에스 주식회사 | Plunging assembly for driveshaft and driveshaft including same |
| CN207864459U (en) * | 2017-12-31 | 2018-09-14 | 浙江向隆机械有限公司 | A kind of constant velocity driving shaft with set spindle-type jackshaft |
| KR20190089828A (en) * | 2019-07-25 | 2019-07-31 | 이래에이엠에스 주식회사 | Plunging assembly for driveshaft |
| WO2021157869A1 (en) * | 2020-02-07 | 2021-08-12 | 이래에이엠에스 주식회사 | Method for manufacturing tubular shaft for drive shaft having ball spline structure, and tubular shaft manufactured thereby |
| CN116198587A (en) * | 2023-03-20 | 2023-06-02 | 北京福田戴姆勒汽车有限公司 | Steering transmission shaft and vehicle with same |
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|---|---|
| CN117145882A (en) | 2023-12-01 |
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