CN212899438U - Ball cage universal joint - Google Patents
Ball cage universal joint Download PDFInfo
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- CN212899438U CN212899438U CN202021711140.7U CN202021711140U CN212899438U CN 212899438 U CN212899438 U CN 212899438U CN 202021711140 U CN202021711140 U CN 202021711140U CN 212899438 U CN212899438 U CN 212899438U
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- groove
- radiating groove
- steel ball
- universal joint
- ball
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Abstract
The utility model discloses a ball cage universal joint, connect in the inside holder of universal joint outer lane and set up in the inside steel ball groove of holder including universal joint outer lane and rotation, the inside scarf joint in steel ball groove has the biography power steel ball, the surface of holder just is located and has all seted up a main heat dissipation groove between two adjacent steel ball grooves. The utility model discloses a set up main radiating groove between two adjacent biography power steel balls, and will pass the friction heat of the rotatory production of power steel ball in the main radiating groove of radiating groove direction, then derive by main radiating groove, the heat that has improved biography power steel ball transmission junction greatly gives off efficiency, through smooth protruding, the design of spout and ball, the centrifugal force that the dustproof piece of being convenient for produced through the rotation of holder outwards throws away, thereby expose main radiating groove, so that the heat in the main radiating groove gives off, push away the design of spring through fixed plate and restoration, be convenient for make dustproof piece restore to the throne when the holder stops rotating, and then to the inside of main radiating groove dustproof protection.
Description
Technical Field
The utility model relates to a variable angle power transmission technical field especially relates to a ball cage universal joint.
Background
The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of an automobile driving system. The universal joint is combined with a transmission shaft and is called a universal joint transmission device. A ball-cage universal joint is a constant-speed universal joint, and is a device which connects two shafts with different included angles or mutual positions between the shafts and enables the two shafts to transmit power at the same angular speed.
The outer sides of transmission joints of force transmission steel balls of the traditional ball cage universal joint are all in a sealed solid state, and the joints can generate more heat in high-frequency rotation transmission, and the heat can be conducted only through solid materials, so that the heat dissipation effect is poor.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a ball cage universal joint.
(II) technical scheme
The utility model provides a ball cage universal joint, connect in the inside holder of universal joint outer lane and set up in the inside steel ball groove of holder including universal joint outer lane and rotation, the inside scarf joint in steel ball groove has the biography power steel ball, the surface of holder just is located and has all seted up a main radiating groove between two adjacent steel ball grooves, the inside of holder is located and has seted up a radiating groove between steel ball groove and the main radiating groove, just the one end of a radiating groove and the inside intercommunication in steel ball groove, the other end of a radiating groove and the inside intercommunication in main radiating groove, the equal elastic sliding in the outside that the surface of holder is located single main radiating groove has a dustproof piece.
Preferably, the rear surface of the dustproof sheet is fixedly connected with a plurality of stop blocks, and the stop blocks correspond to the heat dissipation grooves in corresponding positions one to one.
Preferably, the rear surface of the dustproof sheet is provided with a sliding groove, and the outer surface of the retainer is fixedly connected with a sliding protrusion matched with the sliding groove.
Preferably, the outer surface of the sliding protrusion is rotatably connected with a plurality of balls.
Preferably, the outer surface of the retainer is fixedly connected with a fixing plate on one side of a single dustproof sheet, the outer surface of the fixing plate close to the dustproof sheet is fixedly connected with a reset push spring, and one end of the reset push spring is fixedly connected with the end surface of the dustproof sheet.
Preferably, one end of the universal joint outer ring is connected with a first transmission shaft, and the other end of the first transmission shaft is connected with a second transmission shaft through a retainer.
Preferably, the inner ring surface of the retainer is provided with spline grooves, and the outer surface of the end part of the second transmission shaft is provided with spline teeth matched with the spline grooves.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up main radiating groove between two adjacent biography power steel balls, and will pass the friction heat of the rotatory production of power steel ball in the main radiating groove of radiating groove direction, then derive by main radiating groove, the heat that has improved biography power steel ball transmission junction greatly gives off efficiency, through smooth protruding, the design of spout and ball, the centrifugal force that the dustproof piece of being convenient for produced through the rotation of holder outwards throws away, thereby expose main radiating groove, so that the heat in the main radiating groove gives off, push away the design of spring through fixed plate and restoration, be convenient for make dustproof piece restore to the throne when the holder stops rotating, and then to the inside of main radiating groove dustproof protection.
Drawings
Fig. 1 is a schematic front view of a ball cage universal joint according to the present invention;
fig. 2 is a right side view of the retainer of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.
In the figure: the universal joint comprises a first transmission shaft 1, a second transmission shaft 2, a universal joint outer ring 3, a retainer 4, a spline groove 5, a steel ball groove 6, a force transmission steel ball 7, a dustproof sheet 8, a fixing plate 9, a reset push spring 10, a sliding protrusion 11, a main heat dissipation groove 12, heat dissipation grooves 13, a stop block 14, balls 15 and sliding grooves 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-3, the utility model provides a ball cage universal joint, connect in the inside holder 4 of universal joint outer lane 3 and set up in the inside steel ball groove 6 of holder 4 including universal joint outer lane 3 and rotation, the inside scarf joint of steel ball groove 6 has biography power steel ball 7, a main radiating groove 12 has all been seted up to the surface of holder 4 and be located between two adjacent steel ball grooves 6, the inside of holder 4 is located and has seted up a radiating groove 13 between steel ball groove 6 and the main radiating groove 12, and the one end of a radiating groove 13 and the inside intercommunication of steel ball groove 6, the other end of a radiating groove 13 and the inside intercommunication of main radiating groove 12, the equal elastic sliding connection in the outside that the surface of holder 4 is located single main radiating groove 12 has a dustproof piece 8.
In an alternative embodiment, a plurality of stoppers 14 are fixedly connected to the rear surface of the dust-proof sheet 8, and the stoppers 14 correspond to the heat dissipating grooves 13 in corresponding positions one by one.
In an alternative embodiment, the rear surface of the dust-proof sheet 8 is provided with a sliding groove 16, and the outer surface of the retainer 4 is fixedly connected with a sliding protrusion 11 matched with the sliding groove 16.
In an alternative embodiment, a plurality of balls 15 are rotatably attached to the outer surface of the slider 11.
In an alternative embodiment, a fixing plate 9 is fixedly connected to the outer surface of the holder 4 on one side of the single dust-proof sheet 8, a return push spring 10 is fixedly connected to the outer surface of the fixing plate 9 close to the dust-proof sheet 8, and one end of the return push spring 10 is fixedly connected to the end surface of the dust-proof sheet 8.
In an alternative embodiment, a first transmission shaft 1 is connected to one end of the outer joint ring 3, and a second transmission shaft 2 is connected to the other end of the first transmission shaft 1 through a retainer 4.
In an alternative embodiment, the inner annular surface of the retainer 4 is provided with spline grooves 5, and the outer surface of the end part of the second transmission shaft 2 is provided with spline teeth matched with the spline grooves 5.
The working principle is as follows: in the embodiment, a main radiating groove 12 is arranged between two adjacent force transmission steel balls 7, friction heat generated by rotation of the force transmission steel balls 7 is guided into the main radiating groove 12 through a branch radiating groove 13 and then is guided out from the main radiating groove 12, so that the heat dissipation efficiency of the transmission connection part of the force transmission steel balls 7 is greatly improved, the dust-proof sheet 8 is conveniently thrown out outwards through centrifugal force generated by rotation of the retainer 4 through the design of a sliding protrusion 11, a sliding groove 16 and a ball 15, the main radiating groove 12 is exposed, so that the heat in the main radiating groove 12 is dissipated, and the dust-proof sheet 8 is conveniently reset when the retainer 4 stops rotating through the design of the fixing plate 9 and the reset spring 10, thereby performing dustproof protection on the interior of the main radiating groove 12; specifically, when the retainer 4 stops rotating, the retainer 4 generates an outward centrifugal force to throw the dust-proof sheet 8 outward, and due to the positioning action of the sliding protrusion 11, the balls 15 and the sliding grooves 16, the dust-proof sheet 8 can be thrown out along the direction of the sliding protrusion 11 to expose a part of the main radiating groove 12, and at the same time, the dust-proof sheet 8 can also drive the stopper 14 to move away from the port position of the branch radiating groove 13, so that the heat in the branch radiating groove 13 can enter the main radiating groove 12, and the friction heat generated by the rotation of the force transmission steel ball 7 can be guided into the main radiating groove 12 through the branch radiating groove 13 and then be guided out from the main radiating groove 12, thereby greatly improving the heat dissipation efficiency of the transmission connection position of the force transmission steel ball 7, when the retainer 4 stops rotating, the reset spring 10 drives the dust-proof sheet 8 to reset through elastic thrust to completely block the main radiating groove 12, and at this time, the stopper 14 also resets to the port position of the branch radiating groove 13, thereby protecting the insides of the branch heat dissipation groove 13 and the main heat dissipation groove 12 from dust.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. A ball cage universal joint comprises a universal joint outer ring (3), a retainer (4) rotationally connected inside the universal joint outer ring (3) and a steel ball groove (6) arranged inside the retainer (4), wherein a force transmission steel ball (7) is embedded inside the steel ball groove (6), it is characterized in that a main heat dissipation groove (12) is arranged on the outer surface of the retainer (4) and between two adjacent steel ball grooves (6), a branch radiating groove (13) is arranged between the steel ball groove (6) and the main radiating groove (12) in the retainer (4), one end of the branch radiating groove (13) is communicated with the inside of the steel ball groove (6), the other end of the branch radiating groove (13) is communicated with the interior of the main radiating groove (12), the outer surface of the retainer (4) is positioned at the outer side of the single main heat dissipation groove (12) and is elastically connected with a dustproof sheet (8) in a sliding manner.
2. The ball cage universal joint according to claim 1, wherein a plurality of stoppers (14) are fixedly connected to the rear surface of the dust-proof sheet (8), and the stoppers (14) correspond to the heat dissipation grooves (13) at corresponding positions one to one.
3. The ball cage universal joint according to claim 1, wherein a sliding groove (16) is formed in the rear surface of the dust-proof sheet (8), and a sliding protrusion (11) matched with the sliding groove (16) is fixedly connected to the outer surface of the retainer (4).
4. A ball-and-cage joint according to claim 3, characterized in that the outer surface of the sliding cam (11) is rotatably connected with a plurality of balls (15).
5. The ball cage universal joint according to claim 1, wherein a fixing plate (9) is fixedly connected to each side of the outer surface of the retainer (4) which is located on the single dustproof sheet (8), a reset push spring (10) is fixedly connected to the outer surface of the fixing plate (9) which is close to the dustproof sheet (8), and one end of the reset push spring (10) is fixedly connected to the end surface of the dustproof sheet (8).
6. A ball cage joint according to claim 1, wherein one end of the joint outer ring (3) is connected to a first transmission shaft (1), and the other end of the first transmission shaft (1) is connected to a second transmission shaft (2) via a cage (4).
7. A ball cage universal joint according to claim 6, characterized in that the inner annular surface of the cage (4) is provided with spline grooves (5), and the outer surface of the end of the second transmission shaft (2) is provided with spline teeth matched with the spline grooves (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021711140.7U CN212899438U (en) | 2020-08-17 | 2020-08-17 | Ball cage universal joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021711140.7U CN212899438U (en) | 2020-08-17 | 2020-08-17 | Ball cage universal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212899438U true CN212899438U (en) | 2021-04-06 |
Family
ID=75242582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021711140.7U Active CN212899438U (en) | 2020-08-17 | 2020-08-17 | Ball cage universal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212899438U (en) |
-
2020
- 2020-08-17 CN CN202021711140.7U patent/CN212899438U/en active Active
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