Ball cage type synchronous universal coupling

Abstract

The utility model discloses a ball cage type synchronous universal coupling which comprises an outer ball cage assembly body, the outer ball cage assembly body comprises an elastic dust cover and a vent hole formed in the inner wall of one side of the elastic dust cover, a fixing pipe is arranged in the vent hole in a bonding and sleeved mode, one end of the fixing pipe extends to the outer portion of the elastic dust cover, and the other end of the fixing pipe extends to the inner wall of one side of the elastic dust cover. A sealing assembly is arranged on the fixing pipe and comprises a filter cartridge, and the filter cartridge penetrates through the fixing pipe and extends into the elastic dust cover. According to the ball cage type synchronous universal coupling in the scheme, through the arranged sealing assembly, when high-pressure gas is exhausted from the interior of the elastic dust cover, a sealing cover is jacked open, at the moment, the gas is exhausted through filtering holes in a filtering cylinder, and the filtering cylinder can prevent external dust from entering a fixing pipe; and meanwhile, dust attached to the outer part of the filter cartridge is blown off by the high-pressure gas. The utility model relates to the technical field of universal couplings, in particular to a ball cage type synchronous universal coupling.

Description

Technical Field

[0001] The utility model relates to the technical field of universal couplings, in particular to a ball cage type synchronous universal coupling. Background Art

[0002] The ball cage synchronous universal coupling, also known as the constant velocity joint, is a crucial component in automotive transmissions. Its operating condition impacts the vehicle's transmission efficiency and power transmission stability. If the joint is not operating stably, the vehicle will experience excessive vibration, impact, and noise during operation. To ensure stable and efficient operation, the joint must be lubricated and protected from the negative effects of dust. Therefore, dust covers are a common practice in today's automotive production.

[0003] In order to maintain the stable air pressure inside the dust cover, the existing constant velocity universal joint dust cover needs to have a vent on its surface to automatically exhaust air to the outside, so that the air pressure inside and outside is equal, and to avoid damage to the outer dust cover due to excessive air pressure inside the outer dust cover; however, the vent easily introduces external dust into the dust cover, thereby contaminating the internal structure of the constant velocity universal joint and affecting the service life of the constant velocity universal joint.

[0004] In order to improve this phenomenon, we have proposed a ball cage type synchronous universal joint that can prevent dust and maintain stable air pressure inside the dust cover. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a ball cage type synchronous universal coupling.

[0006] The technical solution adopted by the utility model is as follows: The utility model is a ball cage type synchronous universal joint, including an outer ball cage component body, the outer ball cage component body including an elastic dust cover and a vent hole opened on the inner wall of one side of the elastic dust cover, a fixing tube is provided in the adhesive sleeve of the vent hole, and one end of the fixing tube extends to the outside of the elastic dust cover, a sealing assembly is provided on the fixing tube, and the sealing assembly includes a filter cartridge, and the filter cartridge passes through the fixing tube and extends into the interior of the elastic dust cover.

[0007] Furthermore, the sealing assembly also includes a fixing ring and a sealing cover, the fixing ring is fixedly sleeved on the fixing tube, a fixing rod is fixedly provided on the fixing ring, and the fixing rod is kept perpendicular to the fixing ring, the sealing cover is slidably sleeved on the fixing rod and is located above the fixing tube, and the filter cartridge is fixed on the sealing cover toward the middle of the side wall of the fixed tube.

[0008] Furthermore, a limiting disk is fixedly provided on one end of the fixing rod facing away from the fixing ring, and a return spring is slidably sleeved on the fixing rod, and the return spring is in contact between the limiting disk and the sealing cover.

[0009] Furthermore, filter holes are distributed on the filter cartridge, and the outer wall of the filter cartridge is in contact with the inner wall of the fixed tube.

[0010] Furthermore, a sealing ring is fixedly provided on the side wall of the sealing cover facing the fixed tube, and the sealing ring contacts the open end surface of the top of the fixed tube. The sealing ring is located outside the filter cartridge.

[0011] Furthermore, the bottom of the fixing ring is adhered to the elastic dust cover.

[0012] The beneficial effects achieved by the utility model using the above-mentioned structure are as follows: this scheme is a ball cage type synchronous universal coupling, which uses the provided sealing assembly. When high-pressure gas is discharged from the inside of the elastic dust cover, the sealing cover is pushed open. At this time, the gas is discharged through the filter holes on the filter cartridge. The filter cartridge can prevent external dust from entering the fixed tube. At the same time, the high-pressure gas blows off the dust attached to the outside of the filter cartridge, reducing the accumulation of dust outside the filter cartridge; at the same time, when the air pressure inside the elastic dust cover decreases, under the action of the rebound force of the reset spring, the sealing ring at the bottom of the sealing cover is driven to contact the top opening of the fixed tube to seal the fixed tube. At the same time, when the sealing cover moves toward the fixed tube, it also drives the filter cartridge to move into the fixed tube. At this time, the fixed tube can scrape off the dust on the outside of the filter cartridge, further cleaning the dust attached to the outside of the filter cartridge, ensuring the cleanliness of the filter cartridge, and then ensuring the cleanliness of the inside of the elastic dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 Schematic diagram of the overall three-dimensional structure of this scheme;

[0015] Figure 2 This is a schematic diagram of the overall three-dimensional structure of this scheme from another perspective;

[0016] Figure 3 This is a schematic diagram of the connection structure between the sealing component and the fixed pipe of this solution;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the sealing component of this solution;

[0018] Figure 5 For this solution Figure 2 Cross-sectional view at KK;

[0019] Figure 6 For this solution Figure 5 Enlarged view of point A.

[0020] Among them, 1. Outer ball cage assembly body, 2. Elastic dust cover, 3. Vent, 4. Fixing tube, 5. Sealing assembly, 6. Filter cartridge, 7. Fixing ring, 8. Sealing cover, 9. Fixing rod, 10. Limiting plate, 11. Return spring, 12. Filter hole, 13. Sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figures 1-6 As shown, the utility model is a ball cage type synchronous universal coupling, including an outer ball cage component body 1, the outer ball cage component body 1 includes an elastic dust cover 2 and a vent 3 opened on the inner wall of one side of the elastic dust cover 2, a fixing tube 4 is adhesively sleeved in the vent 3, and one end of the fixing tube 4 extends to the outside of the elastic dust cover 2, a sealing assembly 5 is provided on the fixing tube 4, and the sealing assembly 5 includes a filter cartridge 6, which passes through the fixing tube 4 and extends into the interior of the elastic dust cover 2.

[0023] like Figures 1-6 As shown, the sealing assembly 5 also includes a fixing ring 7 and a sealing cover 8. The fixing ring 7 is fixedly sleeved on the fixing tube 4. A fixing rod 9 is fixed on the fixing ring 7, and the fixing rod 9 is kept perpendicular to the fixing ring 7. The sealing cover 8 is slidably sleeved on the fixing rod 9 and is located above the fixing tube 4. The filter cartridge 6 is fixed on the sealing cover 8 toward the middle of the side wall of the fixing tube 4.

[0024] like Figures 1-6 As shown, a limit plate 10 is fixed on one end of the fixing rod 9 facing away from the fixing ring 7 , and a return spring 11 is slidably sleeved on the fixing rod 9 , and the return spring 11 abuts between the limit plate 10 and the sealing cover 8 .

[0025] like Figures 1-6 As shown, filter holes 12 are distributed on the filter cartridge 6 , and the outer wall of the filter cartridge 6 fits with the inner wall of the fixed tube 4 .

[0026] like Figures 1-6 As shown, a sealing ring 13 is fixed on the side wall of the sealing cover 8 facing the fixed tube 4. The sealing ring 13 contacts the top open end surface of the fixed tube 4. The sealing ring 13 is located outside the filter cartridge 6 and ensures the sealing of the fixed tube 4.

[0027] like Figures 1-6 As shown, the bottom of the fixing ring 7 is adhered to the elastic dust cover 2. The adhesion and fixation of the fixing ring 7 and the elastic dust cover 2 ensure the connection stability between the fixing ring 7, the fixing tube 4 and the elastic dust cover 2.

[0028] When the air pressure in the dust cover 2 is too high, the gas enters the fixed tube 4 through the vent hole 3. At this time, the gas pushes the sealing cover 8 open, and the sealing cover 8 squeezes the return spring 11. At this time, the gas is discharged through the filter holes 12 on the filter cartridge 6. The filter cartridge 6 can prevent external dust from entering the fixed tube 4 and then entering the elastic dust cover 2. Moreover, when the high-pressure gas inside the elastic dust cover 2 is discharged, the dust attached to the outside of the filter cartridge 6 can be blown away, and the dust attached to the outside of the filter cartridge 6 is blown away, thereby reducing the accumulation of dust outside the filter cartridge 6. At the same time, when the air pressure in the elastic dust cover 2 is reduced, under the action of the rebound force of the return spring 11, the sealing ring 13 at the bottom of the sealing cover 8 is driven to contact with the top opening of the fixed tube 4, sealing the fixed tube 4. At the same time, when the sealing cover 8 moves toward the fixed tube 4, it also drives the filter cartridge 6 to move into the fixed tube 4. At this time, the fixed tube 4 can scrape off the dust outside the filter cartridge 6, further clean the dust attached to the outside of the filter cartridge 6, and ensure that the filter cartridge 6 is clean.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A ball cage type synchronous universal coupling, characterized by: It includes an outer ball cage assembly body, which includes an elastic dust cover and a vent hole opened on the inner wall of one side of the elastic dust cover. A fixing tube is provided in the adhesive sleeve of the vent hole, and one end of the fixing tube extends to the outside of the elastic dust cover. A sealing assembly is provided on the fixing tube, and the sealing assembly includes a filter cartridge, which passes through the fixing tube and extends into the interior of the elastic dust cover.

2. The ball cage type synchronous universal coupling according to claim 1, characterized in that: The sealing assembly also includes a fixing ring and a sealing cover. The fixing ring is fixedly sleeved on the fixing tube. A fixing rod is fixedly provided on the fixing ring, and the fixing rod and the fixing ring are kept perpendicular. The sealing cover is slidably sleeved on the fixing rod and is located above the fixing tube. The filter cartridge is fixed on the middle part of the side wall of the sealing cover facing the fixing tube.

3. The ball cage type synchronous universal coupling according to claim 2, characterized in that: A limiting disk is fixedly provided on one end of the fixing rod facing away from the fixing ring. A return spring is also slidably sleeved on the fixing rod, and the return spring abuts between the limiting disk and the sealing cover.

4. The ball cage type synchronous universal coupling according to claim 2, characterized in that: Filter holes are distributed on the filter cartridge, and the outer wall of the filter cartridge is in contact with the inner wall of the fixed tube.

5. The ball cage type synchronous universal coupling according to claim 4, characterized in that: A sealing ring is fixedly provided on the side wall of the sealing cover facing the fixed tube. The sealing ring contacts the open end surface of the top of the fixed tube and is located outside the filter cartridge.

6. The ball cage type synchronous universal coupling according to claim 3, characterized in that: The bottom of the fixing ring is adhered to the elastic dust cover.

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