Anti-abrasion inner star wheel

Abstract

The utility model relates to the technical field of inner star wheels, and discloses an anti-abrasion inner star wheel which comprises a wheel body, a tooth groove is formed in the wheel body, balls arranged at equal intervals are arranged on the outer surface of the wheel body, a first ball cage is arranged on the outer side of the wheel body, and a second ball cage is arranged on the outer side of the wheel body. And sliding rods which are arranged at equal intervals are inserted into the wheel body in a sliding manner. According to the anti-abrasion inner star wheel, by arranging the sliding rod, the base and the abrasion-resistant ball, the abrasion-resistant ball abuts against the ball cage in a rolling mode when the inner star wheel moves, by arranging the mounting plate, the mounting groove, the positioning rod and the positioning ring, the ball cage can be detached, and the purposes that friction of the inner wall of the ball cage is effectively reduced, and abrasion of the ball cage is reduced are achieved; and the inner star wheel and the balls can be conveniently mounted and dismounted, and the problem that in the rotating process of an existing inner star wheel, friction can be generated between a wear-resisting pad and the ball cage, the ball cage is abraded, and improvement needs to be conducted is solved.

Description

Technical Field

[0001] The present application relates to the technical field of inner star wheels, and in particular to an anti-wear inner star wheel. Background Art

[0002] The inner star wheel is also called a constant velocity joint. The ball cage universal joint belongs to the constant velocity joint. The universal joint is a universal joint, which is a component that realizes variable angle power transmission. It is used in positions where the direction of the transmission axis needs to be changed. It is the "joint" component of the universal joint device of the automobile drive system. The combination of the universal joint and the drive shaft is called a universal joint transmission device. The common ball cage universal joint includes an inner star wheel and a ball.

[0003] The existing patent (publication number: CN 214945865 U) discloses a durable inner star wheel, which belongs to the technical field of inner star wheels, and includes a wheel body with a sliding cavity, a ball cage installed on the wheel body, a sliding column slidably installed on the sliding cavity, a locking component arranged on the wheel body, a connecting component arranged on the sliding column, and an elastic component arranged on the sliding column. The application can reduce the inner star wheel from falling out of the ball cage and facilitate the installation of the staff.

[0004] During the rotation of the inner star wheel, the wear-resistant pad will rub against the ball cage, causing wear of the ball cage, and there is room for improvement. Utility Model Content

[0005] In response to the shortcomings of the prior art, the present application provides a wear-resistant inner star wheel, which has the advantages of effectively reducing the friction generated by the inner wall of the ball cage, reducing the wear of the ball cage, improving the durability of the ball cage, and facilitating the installation and disassembly of the inner star wheel and the ball. It solves the problem that during the rotation of the existing inner star wheel, the wear-resistant pad will rub against the ball cage, causing wear of the ball cage, and there is room for improvement.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an anti-wear inner star wheel, comprising a wheel body, a tooth groove is opened inside the wheel body, an outer surface of the wheel body is provided with equidistantly arranged balls, a first ball cage is provided on the outer side of the wheel body, a second ball cage is provided on the outer side of the wheel body, and a sliding rod arranged equidistantly is slidably inserted inside the wheel body.

[0007] Through the above scheme, since the wear-resistant pad will rub against the ball cage during the rotation of the existing inner star wheel, causing wear of the ball cage, there is room for improvement. By setting a sliding rod, a base and a wear-resistant ball, the wear-resistant ball is caused to roll against the ball cage when the inner star wheel moves, which effectively reduces the friction of the inner wall of the ball cage and the wear of the ball cage. By setting a mounting plate, a mounting groove, a positioning rod and a positioning ring, the ball cage can be disassembled, which facilitates the installation and disassembly of the inner star wheel and the ball bearing.

[0008] Furthermore, the top end of each sliding rod is fixedly connected to a base, and the interior of the base is rotatably connected to a wear-resistant ball.

[0009] Through the above scheme, the wear-resistant balls roll against the ball cage, thereby reducing the friction of the inner wall of the ball cage and improving the durability of the ball cage.

[0010] Furthermore, the bottom surface of each slide rod is fixedly connected to a first magnet ring, and the interior of the wheel body is fixedly connected to second magnet rings arranged at equal distances.

[0011] Through the above solution, the magnetic relationship between the first magnet ring and the second magnet ring generates a reverse thrust on the slide bar, so that the wear-resistant balls are forced to collide with the ball cage.

[0012] Furthermore, a spring is fixedly connected to the bottom surface of the first magnet ring, and a bottom end of the spring is fixedly connected to the upper surface of the second magnet ring.

[0013] Through the above solution, the spring applies a reaction force to the slide bar, so that the wear-resistant ball and the ball cage are forced to collide with each other.

[0014] Furthermore, the outer circumferential surface of each of the sliding rods is fixedly connected to two first limiting plates, and the outer surface of each of the first limiting plates is slidably connected to the inside of the wheel body.

[0015] Through the above solution, the sliding rod is restricted to prevent the sliding rod from rotating, thereby increasing the stability of the sliding rod movement.

[0016] Furthermore, two mounting plates are fixedly connected to one side of the second ball cage, two mounting grooves are provided inside the first ball cage, and the outer surface of the mounting plate is slidably connected to the first ball cage through the mounting grooves.

[0017] Through the above solution, by providing the mounting plate and the mounting groove, the ball cage can be installed and spliced, which makes it convenient to install and disassemble the ball cage.

[0018] Furthermore, a positioning rod is slidably inserted inside each of the mounting plates, the outer circumferential surface of the positioning rod is slidably inserted into the interior of the first ball cage, and the outer circumferential surface of the positioning rod is threadedly connected to two positioning rings.

[0019] Through the above solution, the first ball cage and the second ball cage are positioned by the positioning rod and the positioning ring, which facilitates the installation and disassembly of the ball cage.

[0020] Furthermore, a second limiting plate is fixedly connected to the outer circumferential surface of the positioning rod, and the outer surface of the second limiting plate is slidably plugged into the interior of the mounting plate.

[0021] Through the above solution, the positioning rod is restricted to prevent the positioning rod from rotating, making it convenient to install and disassemble the positioning ring.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The wear-resistant inner star wheel is provided with a sliding rod, a base and wear-resistant balls, so that the wear-resistant balls roll against the ball cage when the inner star wheel moves, and the ball cage can be disassembled by providing a mounting plate, a mounting groove, a positioning rod and a positioning ring, thereby effectively reducing the friction of the inner wall of the ball cage, reducing the wear of the ball cage, and facilitating the installation and removal of the inner star wheel and the ball bearings, and solving the problem that the wear-resistant pad of the existing inner star wheel will rub against the ball cage during rotation, causing wear of the ball cage, and there is room for improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is the overall three-dimensional structure diagram of this application;

[0025] Figure 2 This is the overall cross-sectional structural diagram of this application;

[0026] Figure 3 Installation board structural diagram for this application;

[0027] Figure 4 This is the structure diagram of the wear-resistant ball for this application.

[0028] In the figure:

[0029] 1. Wheel body; 2. Tooth groove; 3. Ball; 4. First ball cage; 5. Sliding rod; 6. Base; 7. Wear-resistant ball; 8. First magnet ring; 9. Second magnet ring; 10. Spring; 11. First limit plate; 12. Mounting plate; 13. Mounting groove; 14. Positioning rod; 15. Positioning ring; 16. Second limit plate; 17. Second ball cage. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 4 In this embodiment, an anti-wear inner star wheel includes a wheel body 1, a tooth groove 2 is opened inside the wheel body 1, and the outer surface of the wheel body 1 is provided with equidistantly arranged balls 3, a first ball cage 4 is provided on the outer side of the wheel body 1, and a second ball cage 17 is provided on the outer side of the wheel body 1, and a sliding rod 5 arranged equidistantly is slidably inserted inside the wheel body 1.

[0032] See also Figure 2and Figure 4 The top of each slide rod 5 is fixedly connected to a base 6, and the inside of the base 6 is rotatably connected to a wear-resistant ball 7, which rolls against the ball cage through the wear-resistant ball 7 to reduce the friction of the inner wall of the ball cage and improve the durability of the ball cage.

[0033] See also Figure 2 and Figure 4 The bottom surface of each slide bar 5 is fixedly connected to a first magnet ring 8, and the interior of the wheel body 1 is fixedly connected to an equidistantly arranged second magnet ring 9. The magnetic relationship between the first magnet ring 8 and the second magnet ring 9 generates a reverse thrust on the slide bar 5, causing the wear-resistant ball 7 to collide with the ball cage.

[0034] See also Figure 2 and Figure 4 The bottom surface of the first magnet ring 8 is fixedly connected with a spring 10, and the bottom end of the spring 10 is fixedly connected with the upper surface of the second magnet ring 9. The spring 10 applies a reaction force to the slide rod 5, causing the wear-resistant ball 7 to collide with the ball cage.

[0035] See also Figure 1 , Figure 2 and Figure 4 The outer circumferential surface of each slide bar 5 is fixedly connected to two first limit plates 11, and the outer surface of each first limit plate 11 is slidably connected to the inside of the wheel body 1 to limit the slide bar 5, prevent the slide bar 5 from rotating, and increase the stability of the slide bar 5 movement.

[0036] See also Figure 2 and Figure 3 One side of the second ball cage 17 is fixedly connected with two mounting plates 12, and the interior of the first ball cage 4 is provided with two mounting grooves 13. The outer surface of the mounting plate 12 is slidably connected with the first ball cage 4 through the mounting grooves 13. By setting the mounting plate 12 and the mounting grooves 13, the ball cage can be installed and spliced, which facilitates the installation and disassembly of the ball cage.

[0037] See also Figure 2 and Figure 3 A positioning rod 14 is slidably inserted into the interior of each mounting plate 12, and the outer circumferential surface of the positioning rod 14 is slidably inserted into the interior of the first ball cage 4. The outer circumferential surface of the positioning rod 14 is threadedly connected to two positioning rings 15. The first ball cage 4 and the second ball cage 17 are positioned by the positioning rod 14 and the positioning ring 15, which facilitates the installation and disassembly of the ball cage.

[0038] See also Figure 3 The outer circumferential surface of the positioning rod 14 is fixedly connected to a second limiting plate 16, and the outer surface of the second limiting plate 16 is slidably plugged into the interior of the mounting plate 12 to limit the positioning rod 14 and prevent the positioning rod 14 from rotating, making it convenient to install and disassemble the positioning ring 15.

[0039] An anti-wear inner star wheel in the present embodiment is provided with a slide rod 5, a base 6 and a wear-resistant ball 7, so that the wear-resistant ball 7 rolls against the ball cage when the inner star wheel moves, and the ball cage can be disassembled by providing a mounting plate 12, a mounting groove 13, a positioning rod 14 and a positioning ring 15, thereby effectively reducing the friction of the inner wall of the ball cage, reducing the wear of the ball cage, and facilitating the installation and disassembly of the inner star wheel and the ball 3, thereby solving the problem that the wear-resistant pad of the existing inner star wheel will rub against the ball cage during rotation, causing wear of the ball cage, and there is room for improvement.

[0040] It should be noted that the wear-resistant ball 7 is made of rubber, and the diameter of the upper opening of the base 6 is smaller than the diameter of the wear-resistant ball 7 to prevent the wear-resistant ball 7 from easily falling off from the inside of the base 6 and improve the stability of the wear-resistant ball 7.

[0041] The working principle of the above embodiment is:

[0042] When the inner star wheel moves, the wear-resistant ball 7 can roll against the inner walls of the first ball cage 4 and the second ball cage 17 respectively under the action of the spring 10, the first magnet ring 8 and the second magnet ring 9, thereby reducing the friction on the inner walls of the first ball cage 4 and the second ball cage 17, reducing the wear on the first ball cage 4 and the second ball cage 17, and improving the durability of the first ball cage 4 and the second ball cage 17. When it is necessary to disassemble the wheel body 1 and the ball 3, the positioning ring 15 and the positioning rod 14 can be removed in turn, and then the mounting plate 12 can be removed from the mounting groove 13, so that the first ball cage 4 can be separated from the second ball cage 17, and the wheel body 1 and the ball 3 can be disassembled for maintenance or replacement.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant inner star wheel, comprising a wheel body (1), characterized in that: The wheel body (1) has a tooth groove (2) formed inside, the outer surface of the wheel body (1) has equally spaced balls (3), the outer side of the wheel body (1) has a first ball cage (4), the outer side of the wheel body (1) has a second ball cage (17), and the interior of the wheel body (1) has equally spaced sliding rods (5) slidably inserted therein.

2. The wear-resistant inner star wheel according to claim 1, characterized in that: The top end of each sliding rod (5) is fixedly connected to a base (6), and a wear-resistant ball (7) is rotatably connected inside the base (6).

3. The wear-resistant inner star wheel according to claim 1, characterized in that: The bottom surface of each slide bar (5) is fixedly connected to a first magnet ring (8), and the interior of the wheel body (1) is fixedly connected to second magnet rings (9) arranged at equal distances.

4. The wear-resistant inner star wheel according to claim 3, characterized in that: A spring (10) is fixedly connected to the bottom surface of the first magnet ring (8), and a bottom end of the spring (10) is fixedly connected to the top surface of the second magnet ring (9).

5. The wear-resistant inner star wheel according to claim 1, characterized in that: The outer circumferential surface of each sliding rod (5) is fixedly connected to two first limiting plates (11), and the outer surface of each first limiting plate (11) is slidably connected to the inside of the wheel body (1).

6. The wear-resistant inner star wheel according to claim 1, characterized in that: Two mounting plates (12) are fixedly connected to one side of the second ball cage (17), two mounting grooves (13) are provided inside the first ball cage (4), and the outer surface of the mounting plate (12) is slidably connected to the first ball cage (4) via the mounting grooves (13).

7. The wear-resistant inner star wheel according to claim 6, characterized in that: A positioning rod (14) is slidably inserted into the interior of each mounting plate (12); the outer circumferential surface of the positioning rod (14) is slidably inserted into the interior of the first ball cage (4); and the outer circumferential surface of the positioning rod (14) is threadedly connected to two positioning rings (15).

8. The wear-resistant inner star wheel according to claim 7, characterized in that: The outer circumferential surface of the positioning rod (14) is fixedly connected to a second limiting plate (16), and the outer surface of the second limiting plate (16) is slidably plugged into the interior of the mounting plate (12).

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