Precision forging six-ball-groove inner star wheel

Abstract

The utility model relates to the technical field of universal joints, and discloses a precision forging six-ball-groove inner star wheel which comprises an inner star wheel body, a connecting block is fixedly connected to the outer wall of the inner star wheel body, a connecting groove is formed in the connecting block, one end of a first spring is fixedly connected to the interior of the connecting block, and the other end of the first spring is fixedly connected to the outer wall of the inner star wheel body. A connecting plate is fixedly connected to the other end of the first spring, the outer wall of the connecting plate is slidably connected to the interior of the connecting block, the outer wall of the connecting plate is slidably connected to the interior of the connecting groove, a rubber plate is fixedly connected to the outer wall of the connecting plate, and a limiting assembly is arranged on the outer wall of the inner star wheel body. And the limiting assembly is used for limiting the roller. According to the inner star wheel, through mutual matching of the inner star wheel body, the connecting blocks, the connecting grooves, the first springs, the connecting plates, the rubber plates and the spherical raceways, the rubber plates are driven to extrude the spherical raceways, the friction force and the sealing performance of the spherical raceways and the connecting blocks are increased, and the effects of improving the stability of the spherical raceways and reducing damage are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of universal joint especially relates to a precision forging six ball track inner star wheel. BACKGROUND

[0002] Universal joint is also called universal joint, it is the machine part that realizes variable angle power transmission, is used in the mechanical system that needs to transmit power between different angles and positions, and the inner star wheel is the key component of the constant velocity universal joint, as an important part of the constant velocity universal joint, the inner star wheel directly influences the safety and reliability of automobile transmission. Can realize constant velocity transmission, ensure that the power is transmitted stably and accurately when the two shafts of the automobile change the angle during steering and driving, can bear and transmit driving torque, disperses load to more ball tracks and steel balls, compared with the inner star wheel with less ball track, can bear greater driving torque and radial and axial load, so a precision forging six ball track inner star wheel is needed.

[0003] The precision forging six ball track inner star wheel is a kind of component structure of universal joint machine part under greater driving force, in the prior art, the gap between inner star wheel and spherical raceway, due to insufficient sealing, ball raceway may be worn due to reduced lubrication and unstable connection. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a kind of precision forging six ball track inner star wheel, to improve the problem that the sealing between inner star wheel and spherical raceway is not enough and the spherical raceway is worn and connected not enough stable.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of precision forging six ball track inner star wheel, including inner star wheel body, the outer wall of the inner star wheel body is fixedly connected with connecting block, the inside of the connecting block is equipped with connecting groove, one end of the first spring is fixedly connected in the inside of the connecting block, the other end of the first spring is fixedly connected with connecting plate, the outer wall of the connecting plate is slidably connected in the inside of connecting block, the outer wall of the connecting plate is slidably connected in the inside of connecting groove, the outer wall of the connecting plate is fixedly connected with rubber plate, the outer wall of the rubber plate is slidably connected in the inside of connecting block, the outer wall of the rubber plate is slidably connected in the inside of connecting groove, the outer wall of the inner star wheel body is provided with limiting component, and the limiting component is used to limit roller.

[0006] Preferably, the limiting component includes spherical raceway, the outer wall of the spherical raceway is slidably connected in the outer wall of the inner star wheel body, the outer wall of the spherical raceway is slidably connected in the outer wall of the connecting block, the outer wall of the spherical raceway is slidably connected in the outer wall of the rubber plate, the outer wall of the spherical raceway is fixedly connected with clamping plate, and the outer wall of the clamping plate is slidably connected in the inside of the inner star wheel body.

[0007] Preferably, the inner wall of the inner star wheel body is provided with internal splines, and the inside of the connecting block is provided with threaded grooves.

[0008] Preferably, the inside of the clamping plate is provided with a plurality of clamping grooves.

[0009] Preferably, a sliding column is slidably connected to the inside of the inner star wheel body, the outer wall of the sliding column is fixedly connected with a sliding sheet, and the outer wall of the sliding sheet is slidably connected to the inside of the inner star wheel body.

[0010] Preferably, one end of the second spring is fixedly connected to the outer wall of the sliding sheet, and the other end of the second spring is fixedly connected to the inside of the inner star wheel body.

[0011] Preferably, the outer wall of the sliding column is fixedly connected with a clamping bead, the outer wall of the clamping bead is slidably connected to the inside of the clamping groove, and the outer wall of the clamping bead is slidably connected to the inside of the inner star wheel body.

[0012] Preferably, the inner wall of the spherical raceway is provided with an oil guide groove.

[0013] The utility model has the following beneficial effects:

[0014] 1、in the utility model, through the mutual cooperation between the inner star wheel body, the connecting block, the connecting groove, the first spring, the connecting plate, the rubber plate and the spherical raceway, the rubber plate can be driven to extrude the spherical raceway, and then the friction and the sealing property of the spherical raceway and the connecting block are increased, the stability of the spherical raceway is improved, the damage is reduced, the service life of the inner star wheel body is prolonged.

[0015] 2、in the utility model, through the mutual cooperation between the spherical raceway, the clamping plate, the clamping groove, the sliding column, the sliding sheet, the second spring and the clamping bead, the single spherical raceway and the inner star wheel body can be quickly connected, the damaged spherical raceway can be replaced individually, the maintenance cost is saved, and the maintenance efficiency is improved. ACCURACY

[0016] Figure 1 A perspective view of a precision forged six-ball raceway inner star wheel is provided for the utility model;

[0017] Figure 2 A spherical raceway partial structure schematic view of a precision forged six-ball raceway inner star wheel is provided for the utility model;

[0018] Figure 3 A connecting block internal structure section view schematic view of a precision forged six-ball raceway inner star wheel is provided for the utility model;

[0019] Figure 4 An inner star wheel body internal structure section view schematic view of a precision forged six-ball raceway inner star wheel is provided for the utility model.

[0020] Legend:

[0021] 1, inner star wheel body; 2, inner spline; 3, connecting block; 4, connecting groove; 5, threaded groove; 6, first spring; 7, connecting plate; 8, rubber plate; 9, spherical raceway; 10, clamping plate; 11, clamping groove; 12, oil guide groove; 13, sliding column; 14, sliding piece; 15, second spring; 16, clamping bead. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings of the utility model specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] With reference to Figure 1 , Figure 2 and Figure 3 , the utility model provides an embodiment: a kind of precision forging six ball track inner star wheel, including inner star wheel body 1, the outer wall of inner star wheel body 1 is fixedly connected with connecting block 3, connecting block 3 is internally provided with connecting groove 4, one end of first spring 6 is fixedly connected in the inside of connecting block 3, the other end of first spring 6 is fixedly connected with connecting plate 7, the outer wall of connecting plate 7 is slidably connected in the inside of connecting block 3, the outer wall of connecting plate 7 is slidably connected in the inside of connecting groove 4, the outer wall of connecting plate 7 is fixedly connected with rubber plate 8, the outer wall of rubber plate 8 is slidably connected in the inside of connecting block 3, the outer wall of rubber plate 8 is slidably connected in the inside of connecting groove 4, the outer wall of inner star wheel body 1 is provided with limiting component, and limiting component is used to limit roller.

[0024] Specifically, inner star wheel body 1 plays a fixed role to connecting block 3, connecting groove 4 is internally provided in connecting block 3, and connecting groove 4 is used to limit, and the role of rebound is played by first spring 6, can drive connecting plate 7 to slide in the inside of connecting block 3, and connecting plate 7 drives rubber plate 8 to slide in the inside of connecting groove 4, rubber plate 8 has greater friction, when rubber plate 8 is extruded to spherical raceway 9, can increase the friction coefficient between spherical raceway 9 and inner star wheel body 1, make the connection of spherical raceway 9 and inner star wheel body 1 more stable, can effectively prevent the relative displacement between spherical raceway 9 and inner star wheel body 1, ensure the stability of power transmission, in addition, the sealing between spherical raceway 9 and inner star wheel body 1 can also be improved, prevent lubricating oil from entering the gap between the two, reduce the wear caused by poor lubrication, improve the service life.

[0025] With reference to Figure 2The limiting assembly comprises a spherical raceway 9, the outer wall of the spherical raceway 9 is slidably connected to the outer wall of the inner star wheel body 1, the outer wall of the spherical raceway 9 is slidably connected to the outer wall of the connecting block 3, the outer wall of the spherical raceway 9 is slidably connected to the outer wall of the rubber plate 8, the outer wall of the spherical raceway 9 is fixedly connected with a clamping plate 10, and the outer wall of the clamping plate 10 is slidably connected to the inner part of the inner star wheel body 1.

[0026] Specifically, the plurality of spherical raceways 9 arranged on the outer wall of the inner star wheel body 1 can effectively bear and disperse the load, the spherical raceway 9 can be limited during installation by sliding on the outer wall of the connecting block 3, the spherical raceway 9 can be extruded by the rubber plate 8 to increase the friction of the spherical raceway 9 on the connecting block 3, so as to more stably connect the connecting block 3, the spherical raceway 9 can fix the clamping plate 10, and the clamping plate 10 can connect the spherical raceway 9 and the inner star wheel body 1.

[0027] With reference to Figure 2 , the inner wall of the inner star wheel body 1 is provided with an inner spline 2, and the inner part of the connecting block 3 is provided with a threaded groove 5.

[0028] Specifically, the inner spline 2 arranged on the inner wall of the inner star wheel body 1 is used for installing an input shaft, and the threaded groove 5 arranged in the inner part of the connecting block 3 is used for connecting an outer star wheel.

[0029] With reference to Figure 2 , the inner part of the clamping plate 10 is provided with a plurality of clamping grooves 11.

[0030] Specifically, the plurality of clamping grooves 11 arranged in the inner part of the clamping plate 10 are used for clamping to fix the spherical raceway 9.

[0031] With reference to Figure 2 and Figure 4 , the inner part of the inner star wheel body 1 is slidably connected with a sliding column 13, the outer wall of the sliding column 13 is fixedly connected with a sliding sheet 14, the outer wall of the sliding sheet 14 is slidably connected to the inner part of the inner star wheel body 1, one end of the outer wall of the sliding sheet 14 is fixedly connected with a second spring 15, the other end of the second spring 15 is fixedly connected to the inner part of the inner star wheel body 1, the outer wall of the sliding column 13 is fixedly connected with a clamping bead 16, the outer wall of the clamping bead 16 is slidably connected to the inner part of the clamping groove 11, and the outer wall of the clamping bead 16 is slidably connected to the inner part of the inner star wheel body 1.

[0032] Specifically, the sliding column 13 slides in the inner star wheel body 1 to drive the sliding sheet 14 to slide in the inner star wheel body 1, the sliding sheet 14 drives the second spring 15 to compress, the sliding column 13 drives the clamping bead 16 to slide in the clamping groove 11, the clamping bead 16 clamps the clamping plate 10 to slide in the clamping groove 11, thereby limiting the clamping plate 10, achieving the effect of quickly connecting the spherical raceway 9, and the spherical raceway 9 can be separated and disassembled to achieve the effect of individual maintenance, thereby saving maintenance costs and improving maintenance efficiency.

[0033] Referring to Figure 2 The inner wall of the spherical raceway 9 is provided with an oil guide groove 12.

[0034] Specifically, the oil guide groove 12 provided in the inner wall of the spherical raceway 9 is used to guide the lubricating oil, so as to improve the lubricity of the spherical raceway 9.

[0035] Working principle: when the inner star wheel is used, the spherical raceway 9 is first installed on the inner star wheel body 1, the spherical raceway 9 is driven to slide on the outer wall of the connecting groove 4, the rubber plate 8 is driven to slide on the outer wall of the spherical raceway 9, and the rubber plate 8 is driven to slide in the connecting groove 4, the connecting plate 7 is driven to slide in the connecting block 3 while the rubber plate 8 slides, the rubber plate 8 is pressed against the spherical raceway 9 by the rebound of the first spring 6, thereby achieving the effect of stably limiting the spherical raceway 9, the clamping plate 10 is driven to slide in the inner star wheel body 1 by the spherical raceway 9, the clamping bead 16 is driven to slide in the clamping groove 11, the sliding sheet 14 is driven to slide in the inner star wheel body 1 by the clamping bead 16 sliding in the inner star wheel body 1, the second spring 15 is compressed, the sliding column 13 is driven to slide in the inner star wheel body 1, the clamping bead 16 is clamped to the clamping plate 10 by the rebound of the second spring 15, achieving the effect of quickly connecting the spherical raceway 9 and the inner star wheel body 1, achieving the effect of separately disassembling the spherical raceway 9, so as to replace the single damaged spherical raceway 9, saving the maintenance cost, the inner star wheel not only achieves the effect of stably installing the spherical raceway 9 and enhancing the stability of the spherical raceway 9, but also achieves the effect of separately disassembling the spherical raceway 9, improving the maintenance cost of the spherical raceway 9.

[0036] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A closed-die swaged six-ball track planetary gear comprising a planetary gear body (1) characterized by: The outer wall of the inner star wheel body (1) is fixedly connected with a connecting block (3), the inner part of the connecting block (3) is provided with a connecting groove (4), one end of a first spring (6) is fixedly connected with the inner part of the connecting block (3), the other end of the first spring (6) is fixedly connected with a connecting plate (7), the outer wall of the connecting plate (7) is slidably connected in the inner part of the connecting block (3), the outer wall of the connecting plate (7) is slidably connected in the inner part of the connecting groove (4), the outer wall of the connecting plate (7) is fixedly connected with a rubber plate (8), the outer wall of the rubber plate (8) is slidably connected in the inner part of the connecting block (3), the outer wall of the rubber plate (8) is slidably connected in the inner part of the connecting groove (4), and the outer wall of the inner star wheel body (1) is provided with a limiting assembly.

2. A closed-die swaged six-ball raceway internal star wheel according to claim 1, wherein: The limiting assembly comprises a spherical raceway (9), the outer wall of the spherical raceway (9) is slidably connected with the outer wall of the inner star wheel body (1), the outer wall of the spherical raceway (9) is slidably connected with the outer wall of the connecting block (3), the outer wall of the spherical raceway (9) is slidably connected with the outer wall of the rubber plate (8), and the outer wall of the spherical raceway (9) is fixedly connected with a clamping plate (10), and the outer wall of the clamping plate (10) is slidably connected in the inner part of the inner star wheel body (1).

3. The closed-die six-ball path internal star wheel of claim 1, wherein: The inner wall of the inner star wheel body (1) is provided with an inner spline (2), and the inner part of the connecting block (3) is provided with a threaded groove (5).

4. The closed-die swaged six-ball raceway internal star wheel of claim 2, wherein: The inner part of the clamping plate (10) is provided with a plurality of clamping grooves (11).

5. The closed-die six-ball path internal star wheel of claim 1, wherein: The inner part of the inner star wheel body (1) is slidably connected with a sliding column (13), the outer wall of the sliding column (13) is fixedly connected with a sliding piece (14), and the outer wall of the sliding piece (14) is slidably connected in the inner part of the inner star wheel body (1).

6. A closed-die swaged six-ball race according to claim 5, wherein: One end of a second spring (15) is fixedly connected with the outer wall of the sliding piece (14), and the other end of the second spring (15) is fixedly connected in the inner part of the inner star wheel body (1).

7. The closed-die swaged six-ball raceway internal star wheel of claim 6, wherein: The outer wall of the sliding column (13) is fixedly connected with a clamping bead (16), the outer wall of the clamping bead (16) is slidably connected in the inner part of the clamping groove (11), and the outer wall of the clamping bead (16) is slidably connected in the inner part of the inner star wheel body (1).

8. The closed-die six-ball path internal star wheel of claim 2, wherein: The inner wall of the spherical raceway (9) is provided with an oil guide groove (12).

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