CN221195799U - Constant speed ball cage universal joint structure - Google Patents
Constant speed ball cage universal joint structure Download PDFInfo
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- CN221195799U CN221195799U CN202420242148.5U CN202420242148U CN221195799U CN 221195799 U CN221195799 U CN 221195799U CN 202420242148 U CN202420242148 U CN 202420242148U CN 221195799 U CN221195799 U CN 221195799U
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- mandrel
- star
- joint structure
- shaped sleeve
- constant velocity
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005255 carburizing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 101100110009 Caenorhabditis elegans asd-2 gene Proteins 0.000 description 1
- 206010017577 Gait disturbance Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The utility model belongs to the field of automobile manufacturing, and particularly relates to a constant velocity ball cage universal joint structure. The utility model comprises a mandrel, and is characterized in that: the side wall of the mandrel is connected with the star-shaped sleeve through a first spline; the star-shaped sleeve is fixed with the bell-shaped cover through a limit post; a steel ball is arranged between the star-shaped sleeve and the bell-shaped cover; a reset nail is arranged at one end inside the mandrel, and the reset nail is arranged in a shape fit with the limit column head part; the other end of the mandrel is connected with an adjusting bolt through an anti-backlash spring. The utility model has high transmission efficiency, the transmission efficiency is 98-99.8%, the utility model is suitable for high-power transmission, has energy-saving effect, and the angle compensation capability is relatively larger. The carrying is stable, the noise is low, and the normal running of the vehicle is more reliable. The device connects two shafts with included angles or mutual positions between the shafts and transmits power at the same angular speed, which can overcome the problem of non-constant speed of the common cross-shaft type universal joint.
Description
Technical Field
The utility model belongs to the field of automobile manufacturing, and particularly relates to a constant velocity ball cage universal joint structure.
Background
Currently, the majority of steering drive shaft assemblies for commercial heavy trucks employ cross-shaft universal joints. Although the device has the advantages of simple structure, general transmission constant-speed efficiency and low cost, and therefore, the device has wider application. But also has the disadvantage that in the case of a single universal joint having an angle between the steering shaft and the drive shaft, the angular velocities of the two shafts are not equal, which is the non-constant velocity of the single universal joint. If the driving steering shaft rotates at an equiangular speed, the driven transmission shaft) stumbling and slowing down, and the larger the intersection angle of the two shafts, the larger the rotational speed, the worse the non-constant speed of the transmission shaft. The characteristics of the spider type universal joint make it undesirable for noise and service life, which can cause driver discomfort and complaints. There is thus an urgent need for a constant velocity ball and cage joint structure to solve the above problems.
Disclosure of utility model
The utility model aims to provide a constant velocity ball cage universal joint structure which can solve the problem that a cross shaft type coupler has non-constant velocity.
In order to achieve the above purpose, the present utility model provides the following technical solutions.
The utility model provides a constant velocity ball cage universal joint structure, includes dabber, its characterized in that: the side wall of the mandrel is connected with the star-shaped sleeve through a first spline; the star-shaped sleeve is fixed with the bell-shaped cover through a limit post; a steel ball is arranged between the star-shaped sleeve and the bell-shaped cover; a reset nail is arranged at one end inside the mandrel, and the reset nail is arranged in a shape fit with the limit column head part; the other end of the mandrel is connected with an adjusting bolt through an anti-backlash spring.
Further, the outer surface of the star-shaped sleeve is provided with a plurality of grooves, and the inner surface of the bell jar is correspondingly provided with a plurality of grooves; the steel balls are arranged in a slideway formed by matching the two grooves; a retainer for retaining the steel ball in a plane is arranged beside the steel ball.
Further, the number of the sliding ways is six; the number of steel balls arranged in each slideway is six.
Further, a dust cover is arranged outside the bell cover and the mandrel; the dust cover is fixed with the bell cover through the ear-free stepless clamp.
Further, a check ring for preventing the mandrel from separating from the star-shaped sleeve is arranged at one end, connected with the star-shaped sleeve, of the mandrel.
Further, one end of the mandrel, which is far away from the star sleeve, is provided with a second spline which can be connected with the steering shaft.
Further, the bell housing is provided with a mounting groove capable of being matched with the transmission shaft.
The utility model has the beneficial effects of.
The utility model has high transmission efficiency, the transmission efficiency is 98-99.8%, the utility model is suitable for high-power transmission, has energy-saving effect, and the angle compensation capability is relatively larger.
The carrying is stable, the noise is low, and the normal running of the vehicle is more reliable.
The device connects two shafts with included angles or mutual positions between the shafts and transmits power at the same angular speed, which can overcome the problem of non-constant speed of the common cross-shaft type universal joint.
Through the cooperation of reset nail and spacing post, effectively limited the motion angle of dabber.
Drawings
Fig. 1 is a structural diagram of the present utility model.
Fig. 2 is an enlarged partial view of the portion of the reduction pin of the present utility model.
The serial numbers in the figures illustrate: 1-bell housing, 2-star type cover, 3-holder, 4-no ear stepless clamp, 5-steel ball, 6-dabber, 7-dust cover, 8-adjusting bolt, 9-clearance spring, 10-nail that resets, 11-retaining ring, 12-spacing post, 13-steering spindle, 14-transmission shaft.
Detailed Description
The utility model, as shown in fig. 1-2, comprises a mandrel 6, characterized in that: the side wall of the mandrel 6 is connected with the star-shaped sleeve 2 through a first spline 15; the star-shaped sleeve 2 is fixed with the bell jar 1 through a limit post 12; a steel ball 5 is arranged between the star-shaped sleeve 2 and the bell jar 1; a reset nail 10 is arranged at one end inside the mandrel 6, and the reset nail 10 is matched with the head of a limit post 12 in shape; the other end of the inside of the mandrel 6 is connected with an adjusting bolt 8 through an anti-backlash spring 9.
Further, the outer surface of the star-shaped sleeve 2 is provided with a plurality of grooves, and the inner surface of the bell jar 1 is correspondingly provided with a plurality of grooves; the steel balls 5 are arranged in a slideway formed by matching the two grooves; a cage 3 for holding the steel ball 5 in one plane is provided beside the steel ball 5.
Further, the number of the sliding ways is six; the number of steel balls 5 arranged in each slideway is six.
Further, a dust cover 7 is arranged outside the bell housing 1 and the mandrel 6; the dust cap is secured to the bell 1 by means of an endless, stepless clip 4.
Further, a check ring 11 for preventing the mandrel 6 from being separated from the star-shaped sleeve 2 is arranged at the end connected with the sleeve.
Further, the end of the spindle 6 remote from the star 2 is provided with a second spline 16 which is able to connect to the steering shaft 13.
Further, the bell housing 1 is provided with a mounting groove capable of being fitted with the propeller shaft 14.
The utility model relates to a machine-added simplified process forming process of a main part.
Bell jar 1: forging blank, rough/finish turning inner and outer circles, rough/finish milling six channels, heat treatment of the six channels, grinding of the six channels, cleaning, and warehousing to be assembled.
Star cover 2: rough/finish turning of the forging blank, pulling of a spline, carburizing and quenching, shot blasting, grinding of six channels, cleaning, and warehousing to be assembled.
Retainer 3: forging blank, rough/finish turning of inner and outer circles, milling of window holes, carburizing and quenching, grinding of inner and outer spherical surfaces, polishing, cleaning and warehousing to be assembled.
And (3) a mandrel 6: blanking a blank, cold extruding, pulling a spline, performing thermal refining, drilling, milling a groove, rolling the spline, performing local heat treatment, and warehousing for assembly.
The assembly of the present utility model.
Pressing the limit post 12 into the bell jar 1;
Firstly, a star-shaped sleeve 2 is arranged in a retainer 3, then the star-shaped sleeve is assembled into a bell jar 1, then six force transmission steel balls 5 are arranged in the retainer 3 one by one, and the steel balls 5 are in small clearance fit with the retainer 3;
a certain amount of lubricating grease is injected into the inner and outer raceways in the components, and six force transmission steel balls 5 smoothly and freely roll in the outer raceways of the bell housing 1 and the inner raceways of the star-shaped sleeve 2 without stagnation;
A dust cover 7 and a retainer ring 11 are arranged on the mandrel 6, and the component is pressed into the star-shaped sleeve 2 with the component by a pressing machine;
the reset nail 10, the gap eliminating spring 9 and the adjusting bolt 8 are sequentially arranged in the combined mandrel 6, the spring force of the gap eliminating spring 9 is controlled by the screwing depth of the adjusting bolt 8, so that the axial force between the reset nail 10 and the limiting column 12 is controlled, and the axial position of the star-shaped sleeve 2 in the bell housing 1 is also controlled, so that six force transmission steel balls 5 can smoothly and freely roll in the inner raceway and the outer raceway without stagnation;
The dust cover 7 is mounted on the bell 1 and is locked and fixed by the endless stepless clamp.
The constant-speed ball cage universal joint structure can be widely applied to steering transmission shaft assemblies of commercial heavy trucks.
Practical example 1 of the present utility model.
The coupler is applied to the upper end of a steering transmission shaft assembly of a commercial heavy truck, and a mandrel 6 at one end of the coupler is connected with the lower end of an input torque steering shaft 13 provided with a steering wheel through an A spline and is locked and fixed by bolts and nuts; the other end of the bell housing 1 is pressed together with the upper end of the output torque transmission shaft 14 and is welded and fixed.
Practical example 2 of the present utility model.
The coupler is applied to the lower end of a steering transmission shaft assembly, one end bell housing 1 and the lower end of an output torque transmission shaft sleeve are pressed together and welded and fixed, and the other end mandrel 6 is connected with a steering gear through an A spline and locked and fixed by bolts and nuts.
Practical example 3 of the present utility model.
The coupler can be simultaneously applied to the upper end and the lower end of the steering transmission shaft assembly, the upper end is connected with the steering shaft 13 through the mandrel 6, and the lower end is connected with the steering gear through the mandrel 6. The use of two low friction torque constant velocity joints with one steering drive shaft assembly increases the drive efficiency.
An application of a constant velocity ball cage universal joint structure on a steering transmission shaft assembly: when the angle between the steering shaft 13 and the transmission shaft 14 reaches more than 35 degrees, the conventional common universal joint with small deflection angle cannot be adopted. When the deflection angle of the common universal joint is large, the rotating speed and the torque have large fluctuation, the power of the automobile engine is difficult to be stably and reliably transmitted to the wheels, and meanwhile, the vibration, the impact and the noise of the automobile are also caused. Therefore, a constant velocity joint having a large deflection angle, stable power transmission, and uniform angular velocity must be used to satisfy the requirements. Therefore, the coupler is widely applied to the heavy truck steering transmission shaft assembly.
It will be appreciated that the above detailed description of the utility model is provided for illustration of the utility model and not for limitation of the technical solutions described in the embodiments of the utility model, and that the person skilled in the art should understand that the utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.
Claims (7)
1. Constant velocity ball cage universal joint structure, including dabber (6), its characterized in that: the side wall of the mandrel (6) is connected with the star-shaped sleeve (2) through a first spline (15); the star-shaped sleeve (2) is fixed with the bell jar (1) through a limit post (12); a steel ball (5) is arranged between the star-shaped sleeve (2) and the bell jar (1); a reset nail (10) is arranged at one end inside the mandrel (6), and the reset nail (10) is arranged in a shape matching with the head part of the limit column (12); the other end of the inside of the mandrel (6) is connected with an adjusting bolt (8) through an anti-backlash spring (9).
2. A constant velocity ball and cage joint structure according to claim 1, wherein: the outer surface of the star-shaped sleeve (2) is provided with a plurality of grooves, and the inner surface of the bell jar (1) is correspondingly provided with a plurality of grooves; the steel balls (5) are arranged in a slideway formed by matching the two grooves; a retainer (3) for retaining the steel ball (5) in a plane is arranged beside the steel ball (5).
3. A constant velocity ball and socket joint structure according to claim 2, wherein: the number of the slide ways is six; the number of steel balls (5) arranged in each slideway is six.
4. A constant velocity ball and cage joint structure according to claim 1, wherein: a dust cover (7) is arranged outside the bell housing (1) and the mandrel (6); the dust cover is fixed with the bell cover (1) through the earless stepless clamp (4).
5. A constant velocity ball and cage joint structure according to claim 1, wherein: one end of the mandrel (6) connected with the star-shaped sleeve (2) is provided with a check ring (11) for preventing the mandrel and the star-shaped sleeve from separating from each other.
6. A constant velocity ball and cage joint structure according to claim 1, wherein: one end of the mandrel (6) far away from the star sleeve (2) is provided with a second spline (16) which can be connected with a steering shaft (13).
7. A constant velocity ball and cage joint structure according to claim 1, wherein: the bell jar (1) is provided with a mounting groove which can be matched with the transmission shaft (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420242148.5U CN221195799U (en) | 2024-02-01 | 2024-02-01 | Constant speed ball cage universal joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420242148.5U CN221195799U (en) | 2024-02-01 | 2024-02-01 | Constant speed ball cage universal joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195799U true CN221195799U (en) | 2024-06-21 |
Family
ID=91526617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420242148.5U Active CN221195799U (en) | 2024-02-01 | 2024-02-01 | Constant speed ball cage universal joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195799U (en) |
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2024
- 2024-02-01 CN CN202420242148.5U patent/CN221195799U/en active Active
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