Star-shaped sleeve with good lubricating effect

Abstract

The utility model belongs to the technical field of starlike sleeves, and particularly relates to a starlike sleeve with a good lubricating effect, a plurality of grooves distributed at equal intervals are formed in the outer wall of a sleeve body and used for rolling of balls so as to reduce friction and abrasion, a shaft hole is formed in the middle of the sleeve body in a penetrating mode and used for installation of a main shaft, and an oil inlet hole is formed in one end of the sleeve body. An oil inlet channel communicated with the oil inlet hole is formed in the sleeve body, an annular oil groove communicated with the oil inlet channel is formed in the sleeve body, the oil inlet channel is used for guiding the lubricating oil to enter the annular oil groove, and the annular oil groove is used for storing the lubricating oil and distributing the lubricating oil to the grooves. Two oil guiding holes communicated with the annular oil groove are formed in each groove and used for guiding lubricating oil in the annular oil groove into the groove, the lubricating effect on the balls is achieved, a drainage groove is formed between the two oil guiding holes, flowing and distribution of the lubricating oil can be assisted, and waste of the lubricating oil is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to star sleeve technical field especially relates to a star sleeve with good lubrication effect. BACKGROUND

[0002] The star sleeve is a key part in the constant velocity drive shaft, and its main function is to realize constant velocity steering transmission. In the manufacturing process, the inner ball cage star sleeve raceway is linear, and the outer ball cage star sleeve raceway is circular arc, multi-segment linear with one end circular arc. Generally, it needs to be matched with a grinding machine for processing. The existing star sleeve has problems such as transmission efficiency decline, noise increase and service life shortening due to wear and tear of the rolling contact surface and insufficient lubrication during long-term use. SUMMARY

[0003] The utility model discloses a star sleeve with good lubrication effect to solve the problems in the background technology.

[0004] Therefore, the utility model provides a star sleeve with good lubrication effect, the outer wall of the sleeve body is formed with a plurality of equidistantly distributed grooves for ball rolling, and the middle part of the sleeve body is provided with a shaft hole for installing the main shaft.

[0005] The oil inlet hole is arranged at one end of the sleeve body.

[0006] The oil inlet channel is arranged in the sleeve body and communicates with the oil inlet hole.

[0007] The annular oil groove is arranged in the sleeve body and communicates with the oil inlet channel.

[0008] The oil guide hole is arranged on each groove and communicates with the annular oil groove.

[0009] The drainage groove is arranged between the two oil guide holes.

[0010] Further, the technical scheme further comprises:

[0011] The installation groove is arranged on the shaft hole.

[0012] The spring is fixedly connected in the installation groove.

[0013] The sliding block is fixedly connected to the side end of the spring.

[0014] The connecting rod is fixedly connected to the other end of the sliding block.

[0015] The flow guide bead is fixedly connected to the other end of the connecting rod.

[0016] The oil outlet hole is arranged on the guide bead.

[0017] The oil delivery channel is arranged in the sleeve body.

[0018] In the above technical solution, further, the installation groove is not communicated with the annular oil groove, the sliding block is slidably connected in the installation groove, and the two are in close connection, and the guide bead can be slidably connected in the installation groove.

[0019] In the above technical solution, further, one end of the oil delivery channel is communicated with the annular oil groove, the other end is communicated with the installation groove, and the connection positions of the two are aligned with the sliding block.

[0020] In the above technical solution, further, the oil inlet hole is provided with a protective plug.

[0021] In the above technical solution, further, the surface of the protective plug is provided with a cross groove.

[0022] In the above technical solution, further, the sleeve body is uniformly and circumferentially provided with heat dissipation openings.

[0023] In the above technical solution, further, the inner wall of the shaft hole is provided with an internal spline connected with the main shaft spline.

[0024] The beneficial effects of the present application are as follows:

[0025] 1. Two oil inlet holes communicated with the annular oil groove are arranged on each groove, which is used for guiding the lubricating oil in the annular oil groove into the groove to realize the lubrication effect of the ball.

[0026] 2. A drainage groove is arranged between the two oil inlet holes, which can assist the flow and distribution of the lubricating oil, and avoid the waste of lubricating oil.

[0027] 3. The protective plug can be threadedly connected with the oil inlet hole, which is used for preventing dust and impurities from entering the star-shaped sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of the present application;

[0029] Figure 2 is a schematic view of the internal structure of the present application;

[0030] Figure 3 is a schematic view of the oil inlet channel structure of the present application;

[0031] Figure 4 is a schematic view of the present application Figure 2 is a local enlarged view of A in the present application;

[0032] The figure is marked as: 1 - sleeve, 2 - groove, 3 - shaft hole, 4 - oil inlet hole, 5 - oil inlet channel, 6 - annular oil groove, 7 - oil inlet hole, 8 - drainage groove, 9 - mounting groove, 10 - spring, 11 - sliding block, 12 - connecting rod, 13 - guide bead, 14 - oil outlet hole, 15 - oil delivery channel, 16 - protective plug, 17 - cross slot, 18 - heat dissipation opening. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0034] Embodiment 1

[0035] The present embodiment provides a star-shaped sleeve with good lubricating effect, comprising:

[0036] The sleeve 1 is provided with a plurality of equidistantly distributed grooves 2 on the outer wall for rolling balls to roll, and the middle part of the sleeve 1 is provided with a shaft hole 3 for installing a main shaft;

[0037] The oil inlet hole 4 is provided at one end of the sleeve 1;

[0038] The oil inlet channel 5 is provided in the sleeve 1 and communicates with the oil inlet hole 4;

[0039] The annular oil groove 6 is provided in the sleeve 1 and communicates with the oil inlet channel 5;

[0040] The oil inlet hole 7 is provided on each groove 2 and communicates with the annular oil groove 6;

[0041] The drainage groove 8 is provided between the two oil inlet holes 7.

[0042] As can be seen from the present embodiment, the sleeve 1 is provided with a plurality of equidistantly distributed grooves 2 on the outer wall for rolling balls to roll, so as to reduce friction and wear, the middle part of the sleeve 1 is provided with a shaft hole 3 for installing a main shaft, the sleeve 1 is provided with an oil inlet hole 4 at one end for injecting lubricating oil into the interior of the star-shaped sleeve, the oil inlet channel 5 is provided in the sleeve 1 and communicates with the oil inlet hole 4, the annular oil groove 6 is provided in the sleeve 1 and communicates with the oil inlet channel 5, the oil inlet channel 5 is provided for guiding the lubricating oil into the annular oil groove 6, the annular oil groove 6 is provided for storing the lubricating oil and distributing it to each groove 2, the oil inlet hole 7 is provided on each groove 2 and communicates with the annular oil groove 6, for introducing the lubricating oil in the annular oil groove 6 into the groove 2, so as to achieve the lubricating effect on the rolling balls, and the drainage groove 8 is provided between the two oil inlet holes 7, which can assist the flow and distribution of the lubricating oil, so as to avoid the waste of the lubricating oil.

[0043] The oil outlet of the oil hole 7 has a small contact surface with the ball and is a round hole. The two side walls of the drainage groove 8 are rounded, so as not to easily cause wear of the ball and to ensure stable operation.

[0044] Embodiment 2

[0045] The star-shaped sleeve provided in the embodiment has good lubricating effect and has the following technical features in addition to the technical solutions of the above embodiments.

[0046] Further comprising:

[0047] The shaft hole 3 is provided with a mounting groove 9;

[0048] The mounting groove 9 is fixedly connected with a spring 10;

[0049] The spring 10 is fixedly connected with a sliding block 11 at one end;

[0050] The sliding block 11 is fixedly connected with a connecting rod 12 at the other end;

[0051] The connecting rod 12 is fixedly connected with a flow guide ball 13 at the other end;

[0052] The flow guide ball 13 is provided with an oil outlet hole 14;

[0053] The sleeve body 1 is internally provided with an oil delivery channel 15.

[0054] As can be seen from the embodiment, the shaft hole 3 is provided with a mounting groove 9, the mounting groove 9 is fixedly connected with a spring 10, which is used to provide elastic force, the spring 10 is fixedly connected with a sliding block 11 at one end, the sliding block 11 can slide in the mounting groove 9, the sliding block 11 is fixedly connected with a connecting rod 12 at the other end, which is used to connect the flow guide ball 13, when the main shaft is installed in the shaft hole 3, the spline of the main shaft will press the flow guide ball 13, the flow guide ball 13 drives the sliding block 11 to press the spring 10 in the mounting groove 9, the sliding block 11 moves downward to expose the oil delivery channel 15, the lubricating oil in the annular oil groove 6 can enter the mounting groove 9 from the oil delivery channel 15, and then overflow from the oil outlet hole 14 to lubricate the main shaft and the star-shaped sleeve, reduce the friction and wear between the main shaft and the star-shaped sleeve during the operation of the vehicle, prolong the service life, and prevent overheating and damage of parts caused by excessive heat generated by friction. The number of the above structures can be circularly arranged according to requirements.

[0055] Embodiment 3

[0056] The star-shaped sleeve provided in the embodiment has good lubricating effect and has the following technical features in addition to the technical solutions of the above embodiments.

[0057] The installation groove 9 is not communicated with the annular oil groove 6, the sliding block 11 is slidably connected in the installation groove 9, and the two are tightly connected, and the flow guiding bead 13 can be slidably connected in the installation groove 9.

[0058] It can be seen from the embodiment that the installation groove 9 is not communicated with the annular oil groove 6, the sliding block 11 is slidably connected in the installation groove 9, and the two are tightly connected, and the flow guiding bead 13 can be slidably connected in the installation groove 9.

[0059] Embodiment 4:

[0060] The star-shaped sleeve with good lubricating effect provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0061] One end of the oil conveying channel 15 is communicated with the annular oil groove 6, and the other end is communicated with the installation groove 9, and the connection position of the two is aligned with the sliding block 11.

[0062] It can be seen from the embodiment that one end of the oil conveying channel 15 is communicated with the annular oil groove 6, and the other end is communicated with the installation groove 9, and the connection position of the two is aligned with the sliding block 11, in the state that the flow guiding bead 13 is not pressed and the spring 10 is not compressed, the sliding block 11 will block the oil conveying channel 15, so that the lubricating oil in the annular oil groove 6 cannot flow into the installation groove 9 from the oil conveying channel 15, when the flow guiding bead 13 is pressed, the spring 10 will be compressed, the sliding block 11 will move downward to expose the oil conveying channel 15, the lubricating oil will enter the installation groove 9, and then overflow from the oil outlet hole 14, thereby lubricating the main shaft and the star-shaped sleeve.

[0063] Embodiment 5:

[0064] The star-shaped sleeve with good lubricating effect provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0065] The protection plug 16 is arranged on the oil inlet hole 4.

[0066] It can be seen from the embodiment that the protection plug 16 can be threadedly connected with the oil inlet hole 4, and is used for preventing dust and impurities from entering the inside of the star-shaped sleeve.

[0067] Embodiment 6:

[0068] The star-shaped sleeve with good lubricating effect provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0069] The surface of the protection plug 16 is provided with a cross groove 17.

[0070] It can be seen from the embodiment that the surface of the protection plug 16 is provided with the cross groove 17, so that the protection plug 16 can be disassembled and assembled by using a screwdriver or the like.

[0071] Embodiment 7:

[0072] The star-shaped sleeve with good lubricating effect provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments.

[0073] The sleeve body 1 is uniformly provided with heat dissipation holes 18 on the circumference.

[0074] As can be seen from the embodiment, the sleeve body 1 is uniformly provided with heat dissipation holes 18 on the circumference, so as to improve the heat dissipation performance of the star-shaped sleeve and prevent lubrication failure and component damage caused by overheating.

[0075] Embodiment 8:

[0076] The star-shaped sleeve with good lubricating effect provided in the embodiment has the following technical features in addition to the technical solutions in the above embodiments.

[0077] The inner wall of the shaft hole 3 is provided with internal splines connected with the main shaft splines.

[0078] As can be seen from the embodiment, the inner wall of the shaft hole 3 is provided with internal splines connected with the main shaft splines, so as to ensure the stable connection and accurate transmission between the main shaft and the star-shaped sleeve, and the installation groove 9 is arranged between the two internal splines. The embodiments of the present application are described above in combination with the drawings, and the embodiments and features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative but not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A star-shaped sleeve with good lubrication effect, characterized in that, include: The sleeve (1) has a number of equally spaced grooves (2) for rolling balls on its outer wall, and a shaft hole (3) for mounting the spindle is opened through the middle of the sleeve (1). Oil inlet hole (4), one end of the sleeve (1) is provided with an oil inlet hole (4); Oil inlet channel (5): The sleeve (1) is provided with an oil inlet channel (5) that communicates with the oil inlet hole (4). An annular oil groove (6) is provided inside the sleeve (1) and communicates with the oil inlet channel (5). Oil inlet holes (7), each of the grooves (2) has two oil inlet holes (7) that communicate with the annular oil groove (6); A drainage groove (8) is provided between the two oil inlet holes (7).

2. The star-shaped sleeve with good lubrication effect according to claim 1, characterized in that, Also includes: The mounting groove (9) is provided on the shaft hole (3); Spring (10), a spring (10) is fixedly connected in the mounting groove (9); Sliding block (11), the spring (10) is fixedly connected to the side end of the sliding block (11); Connecting rod (12), the other end of the sliding block (11) is fixedly connected to the connecting rod (12); A guide bead (13) is fixedly connected to the other end of the connecting rod (12); Oil outlet hole (14) is provided on the guide bead (13). Oil delivery channel (15) is provided inside the sleeve (1).

3. The star-shaped sleeve with good lubrication effect according to claim 2, characterized in that, The mounting groove (9) is not connected to the annular oil groove (6), the sliding block (11) is slidably connected in the mounting groove (9), and the two are tightly connected. The guide bead (13) can be slidably connected in the mounting groove (9).

4. A star-shaped sleeve with good lubrication effect according to claim 3, characterized in that, One end of the oil channel (15) is connected to the annular oil groove (6), and the other end is connected to the mounting groove (9), and the connection between the two is aligned with the sliding block (11).

5. A star-shaped sleeve with good lubrication effect according to claim 4, characterized in that, A protective plug (16) is provided on the oil inlet (4).

6. A star-shaped sleeve with good lubrication effect according to claim 5, characterized in that, The surface of the protective plug (16) is provided with a cross groove (17).

7. A star-shaped sleeve with good lubrication effect according to claim 6, characterized in that, The sleeve (1) has heat dissipation openings (18) evenly distributed around its circumference.

8. A star-shaped sleeve with good lubrication effect according to claim 7, characterized in that, The inner wall of the shaft hole (3) is provided with an internal spline that connects to the spindle spline.

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