Ball cage holder

Abstract

The utility model belongs to the technical field of universal joint accessories, and particularly relates to a ball cage retainer which comprises a main body, steel balls and elastic blocks, a plurality of steel ball holes are formed in the circumference of the main body at equal intervals, the steel balls are arranged in the steel ball holes respectively, and the elastic blocks are arranged in the steel ball holes and arranged on the two sides of the steel balls in the circumferential direction of the main body. One side, close to the steel ball, of the elastic block is provided with an arc-shaped surface, and a gap is formed between the arc-shaped surface and the steel ball; the elastic blocks are arranged in the steel ball holes and located on the two sides of the steel balls, the sides, close to the steel balls, of the elastic blocks are arc-shaped faces, and meanwhile gaps are reserved between the steel balls and the elastic blocks, so that collision between the steel balls and the steel ball holes is soft contact, excessive abrasion to the steel balls and the steel ball holes is avoided, and the service life is prolonged; the steel balls deviating in the circumferential direction of the retainer can be reset more quickly through the elastic blocks, and meanwhile, lubrication on the surfaces of the steel balls and the rolling stability of the steel balls are guaranteed through the gaps and the arc-shaped surfaces.

Description

Technical Field

[0001] This utility model belongs to the field of universal joint accessories technology, and in particular relates to a ball cage retainer. Background Technology

[0002] The ball cage is a key structure in a universal joint, used to fix and support the steel balls, ensuring that the universal joint can transmit power smoothly and efficiently. It is usually made of high-strength, wear-resistant materials, and has multiple holes for steel balls in the circumferential direction to accommodate and fix the steel balls.

[0003] In traditional ball cage cages, the size of the ball bore along the circumference of the cage is usually much larger than the diameter of the ball. This is to facilitate the entry of lubricating oil and allow the ball to move within a small range in the circumferential direction, thus ensuring that it is always in the correct position and ensuring smooth power transmission. However, the contact between the ball and the inner wall of the ball bore is usually hard, and the ball may not reset in time after it shifts in the circumferential direction of the cage, which needs to be improved. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a ball cage retainer that avoids hard contact between the steel ball and the ball hole, and can quickly and promptly reset the steel ball to ensure it is always in the correct position.

[0005] In view of this, the present invention provides a ball cage retainer, comprising:

[0006] The main body has multiple steel ball holes spaced at equal intervals around its circumference;

[0007] Multiple steel balls are provided, and each ball is installed in a different hole.

[0008] Elastic blocks are set inside the holes of the steel ball and are arranged on both sides of the steel ball along the circumference of the main body;

[0009] The elastic block has an arc-shaped surface on the side closest to the steel ball, and there is a gap between the elastic block and the steel ball.

[0010] In the above technical solution, further:

[0011] An installation groove is provided on the side of the elastic block closest to the steel ball;

[0012] The mounting slot is equipped with an oil-absorbing sponge.

[0013] In the above technical solution, further:

[0014] The oil-absorbing sponge protrudes from the mounting groove.

[0015] In the above technical solution, further:

[0016] The elastic block has an oil inlet groove, and the two ends of the oil inlet groove are connected to the surface of the main body away from the axis and the mounting groove, respectively.

[0017] In the above technical solution, further:

[0018] Multiple axial oil grooves are formed on the circumference of the main body surface;

[0019] Among them, multiple axial oil grooves are located between two adjacent steel ball holes.

[0020] In the above technical solution, further:

[0021] The main body surface has radial oil grooves, and the radial oil grooves are connected to multiple axial oil grooves.

[0022] In the above technical solution, further:

[0023] The main body surface has radial oil grooves, and the radial oil grooves are connected to multiple axial oil grooves.

[0024] In the above technical solution, further:

[0025] The gap includes a first gap opening between the elastic block and the steel ball on the side away from the spindle axis and a second gap opening between the elastic block and the steel ball on the side closer to the spindle axis.

[0026] The size of the first gap opening is larger than the size of the second gap opening.

[0027] The beneficial effects of this utility model are as follows:

[0028] 1. By placing elastic blocks inside the steel ball hole on both sides of the steel ball, with the side of the elastic block closer to the steel ball having an arc-shaped surface and a gap between the steel ball and the elastic block, the collision between the steel ball and the steel ball hole is a soft contact, avoiding excessive wear on the steel ball and the steel ball hole, extending service life. Furthermore, the elastic blocks can more quickly restore the steel ball that has shifted along the circumferential direction of the cage, while the gap and arc-shaped surface ensure lubrication of the steel ball surface and the stability of the steel ball's rolling.

[0029] 2. By setting an oil-absorbing sponge inside the elastic block, the oil-absorbing sponge can store lubricating oil. In conjunction with the elastic block, when the steel ball deviates along the circumference of the cage, it can squeeze the elastic block and thus squeeze the oil-absorbing sponge, further increasing the amount of lubricating oil in the gap and providing better lubrication for the steel ball.

[0030] 3. The radial oil grooves and multiple axial oil grooves on the surface of the cage body, as well as the oil inlet holes and oil inlet grooves on the elastic block, ensure the supply of lubricating oil to the oil-absorbing sponge, and also improve the lubrication effect on the surface of the cage, thereby improving the lubrication effect at the universal joint connection. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is a front view of the present invention;

[0034] Figure 4 This is a utility model Figure 3 Sectional view at point BB;

[0035] Figure 5 This is a utility model Figure 4 Enlarged view of point C in the middle;

[0036] The markings in the diagram are as follows: 1. Main body; 2. Steel ball hole; 3. Steel ball; 4. Elastic block; 5. Gap; 6. Mounting groove; 7. Oil-absorbing sponge; 8. Oil inlet groove hole; 9. Axial oil groove; 10. Radial oil groove; 11. Oil inlet groove; 12. First gap opening; 13. Second gap opening. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0039] Example 1:

[0040] This embodiment provides a ball cage retainer, including:

[0041] The main body 1 has multiple steel ball holes 2 at equal intervals around its circumference;

[0042] Multiple steel balls 3 are provided and installed in multiple steel ball holes 2 respectively;

[0043] Elastic blocks 4 are set inside the steel ball hole 2 and are arranged on both sides of the steel ball 3 along the circumferential direction of the main body 1.

[0044] Among them, the elastic block 4 has an arc-shaped surface on the side close to the steel ball 3, and a gap 5 is formed between it and the steel ball 3;

[0045] Meanwhile, the elastic block 4 can be made of rubber and has good resistance to corrosion from lubricating oil. It can also be bonded to the inner wall of the steel ball hole 2 by adhesive bonding or vulcanization.

[0046] As can be seen in this embodiment, elastic blocks 4 are provided inside the steel ball hole 2 and on both sides of the steel ball 3. The side of the elastic block 4 closest to the steel ball 3 has an arc-shaped surface. At the same time, a gap 5 is left between the steel ball 3 and the elastic block 4, so that the collision between the steel ball 3 and the steel ball hole 2 is a soft contact, which avoids excessive wear on the steel ball 3 and the steel ball hole 2, extends the service life, and the elastic block 4 can more quickly restore the steel ball 3 that has deviated along the circumferential direction of the cage. Meanwhile, the gap 5 and the arc-shaped surface ensure the lubrication of the surface of the steel ball 3 and the stability of the rolling of the steel ball 3.

[0047] Example 2:

[0048] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0049] An installation groove 6 is provided on the side of the elastic block 4 near the steel ball 3;

[0050] An oil-absorbing sponge 7 is installed inside the mounting groove 6.

[0051] As can be seen from this embodiment, by setting an oil-absorbing sponge 7 inside the elastic block 4, the oil-absorbing sponge 7 can store lubricating oil. In conjunction with the elastic block 4, when the steel ball 3 shifts along the circumferential direction of the cage, it can squeeze the elastic block 4 and then squeeze the oil-absorbing sponge 7, further increasing the amount of lubricating oil in the gap 5, and providing a better lubrication effect for the steel ball 3.

[0052] Example 3:

[0053] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0054] The oil-absorbing sponge 7 protrudes from the mounting groove 6, and the protrusion size must be smaller than the gap size 5.

[0055] As can be seen from this embodiment, by protruding the oil-absorbing sponge 7 from the mounting groove 6, on the one hand, it can better compress the oil-absorbing sponge 7 for lubrication when the steel ball 3 deviates from the circumference of the cage, and on the other hand, it can also compress the sponge when the degree of deviation of the steel ball 3 from the circumference of the cage is small, thereby ensuring that the surface of the steel ball 3 is covered with lubricating oil and improving the lubrication effect of the steel ball 3. Furthermore, making the size of the protrusion smaller than the size of the gap 5 can reduce the amount of oil-absorbing sponge 7 adhering to the surface of the steel ball 3, thereby reducing the situation of wiping off the lubricating oil on the surface of the steel ball 3.

[0056] Example 4:

[0057] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0058] The elastic block 4 has an oil inlet groove 8, and the two ends of the oil inlet groove 8 are respectively connected to the surface of the main body 1 away from the axis and the mounting groove 6.

[0059] As can be seen from this embodiment, by opening the oil inlet hole 8, it can be ensured that the lubricating oil can enter the mounting groove 6 from the oil inlet hole 8 and be stored in the oil-absorbing sponge 7, thereby ensuring the lubrication effect on the steel ball 3 and extending its service life.

[0060] Example 5:

[0061] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0062] Multiple axial oil grooves 9 are formed on the circumference of the surface of the main body 1;

[0063] Among them, multiple axial oil grooves 9 are located between two adjacent steel ball holes 2.

[0064] As can be seen from this embodiment, by opening multiple axial oil grooves 9, it is convenient for lubricating oil to enter the surface of the main body 1 away from the axis, thereby ensuring the lubrication effect when the cage main body 1 moves and the lubricating oil enters the oil-absorbing sponge 7, thus effectively improving the lubrication effect of the steel ball 3.

[0065] Example 6:

[0066] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0067] The surface of the main body 1 is provided with a radial oil groove 10, and the radial oil groove 10 is connected to multiple axial oil grooves 9.

[0068] As can be seen from this embodiment, by opening the radial oil groove 10, it is easy to ensure the uniformity of lubricating oil in the multiple steel ball holes 2, and to ensure the uniformity of lubrication of the multiple steel balls 3, so as to avoid severe local wear due to untimely local lubrication and effectively extend the service life.

[0069] Example 7:

[0070] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0071] The elastic block 4 is provided with an oil inlet groove 11 that communicates with the radial oil groove 10 at the radial oil groove 10;

[0072] The oil inlet groove 11 is connected to the oil inlet groove hole 8.

[0073] As can be seen from this embodiment, by opening the oil inlet groove 11, it is easy for lubricating oil to enter the oil inlet groove 11, and then it is easy for lubricating oil to accumulate in the oil inlet groove hole 8, so that the lubricating oil can enter the mounting groove 6 and be absorbed by the oil-absorbing sponge 7, which can maintain the amount of lubricating oil in the oil-absorbing sponge 7 and ensure the lubrication effect on the steel ball 3.

[0074] Example 8:

[0075] This embodiment provides a ball cage cage, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0076] The gap 5 includes a first gap opening 12 between the elastic block 4 and the steel ball 3 on the side away from the spindle axis and a second gap opening 13 between the elastic block 4 and the steel ball 3 on the side close to the spindle axis;

[0077] The size of the first gap 12 is larger than the size of the second gap 13.

[0078] As can be seen from this embodiment, by making the size of the first gap 12 larger than the size of the second gap 13, the amount of lubricating oil entering the gap 5 can be increased, and the amount of lubricating oil lost from the other side can be reduced to a certain extent, thus extending the storage time of the lubricating oil in the gap 5 and ensuring the lubrication effect.

[0079] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A ball cage retainer characterized by, include: The main body (1) has multiple steel ball holes (2) spaced at equal intervals around its circumference; Multiple steel balls (3) are provided and installed in multiple steel ball holes (2); The elastic block (4) is set inside the steel ball hole (2) and is set on both sides of the steel ball (3) along the circumferential direction of the main body (1); The elastic block (4) has an arc-shaped surface on the side near the steel ball (3) and a gap (5) is formed between it and the steel ball (3).

2. The ball cage retainer according to claim 1, characterized in that: The elastic block (4) has an installation groove (6) on the side near the steel ball (3); An oil-absorbing sponge (7) is provided in the mounting groove (6).

3. The ball cage retainer according to claim 2, characterized in that: The oil-absorbing sponge (7) protrudes from the mounting groove (6), and the protrusion size is smaller than the gap (5).

4. The ball cage retainer according to claim 2, characterized in that: The elastic block (4) is provided with an oil inlet groove (8), and the two ends of the oil inlet groove (8) are respectively connected to the surface of the main body (1) away from the axis and the mounting groove (6).

5. The ball cage retainer according to claim 4, characterized in that: The main body (1) has multiple axial oil grooves (9) on its circumference. Among them, the multiple axial oil grooves (9) are located between two adjacent steel ball holes (2).

6. The ball cage retainer according to claim 5, characterized in that: The surface of the main body (1) is provided with radial oil grooves (10), and the radial oil grooves (10) are connected to multiple axial oil grooves (9).

7. The ball cage retainer according to claim 6, characterized in that: The elastic block (4) is provided with an oil inlet groove (11) that communicates with the radial oil groove (10) at the radial oil groove (10). The oil inlet groove (11) is connected to the oil inlet groove hole (8).

8. The ball cage retainer according to claim 1, characterized in that: The gap (5) includes a first gap opening (12) between the elastic block (4) and the steel ball (3) on the side away from the spindle axis and a second gap opening (13) between the elastic block (4) and the steel ball (3) on the side close to the spindle axis. The size of the first gap (12) is larger than the size of the second gap (13).

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