Split type dust cover for constant velocity universal joint

Abstract

The utility model belongs to the technical field of universal joint dust prevention, and particularly relates to a split type dust cover for a constant velocity universal joint, which comprises two funnel-shaped folding rubber cylinders, one ends of the two folding rubber cylinders are connected together, the other ends of the two folding rubber cylinders are provided with connecting cylinders, and the connecting cylinders are connected with the folding rubber cylinders. A mounting ring is arranged at one end, far away from the folding rubber cylinder, of the connecting cylinder, and a plurality of mounting holes are formed in the mounting ring; and a second connecting ring is arranged on one folding rubber cylinder. According to the universal joint, when lubricating oil is added to the universal joint or the universal joint is overhauled, the rotating button is reversely rotated, so that the rotating button is separated from the first clamping blocks on the two sides, the first connecting ring and the second connecting ring can be separated, and the two folding rubber barrels are separated, folded and compressed; and a worker can very conveniently add lubrication or carry out detection.

Description

Technical Field

[0001] The utility model belongs to the technical field of universal joint dustproofing, and in particular relates to a split dustproof cover for a constant velocity universal joint. Background Art

[0002] A constant velocity universal joint is a mechanism that connects two shafts with non-coincident axes and enables the two shafts to transmit motion at the same angular velocity. It can overcome the non-constant velocity problem of ordinary cross-axis universal joints and is particularly suitable for use in steering drive axles. A dust cover is usually installed on the surface of the constant velocity universal joint to prevent dust and impurities from being embedded inside and affecting its normal use.

[0003] A Chinese patent with publication number CN220488144U discloses a split dust cover for a constant velocity universal joint, wherein the dust cover body is a hollow frustum structure, a first compression pad and a second compression pad are arranged inside the dust cover body, and the first compression pad and the first buffer pad contact each other when the dust cover body is deformed.

[0004] In the prior art, the dust cover can protect the universal joint from dust. During the use of the universal joint, lubricating oil needs to be added in time to protect it. The dust cover is wide in the middle and thin at both ends, which makes it troublesome to add lubricating oil. It is also difficult to inspect the universal joint when it is inspected and repaired later. Utility Model Content

[0005] The utility model is to solve the technical problems raised in the background technology and provides a split dust cover for a constant velocity universal joint.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A split dust cover for a constant velocity universal joint, comprising a folding rubber tube, two folding rubber tubes are provided and are both funnel-shaped, one end of the two folding rubber tubes are connected together, the other end of the two folding rubber tubes are provided with a connecting tube, the end of the connecting tube away from the folding rubber tube is provided with a mounting ring, and the mounting ring is provided with a plurality of mounting holes;

[0008] A second connecting ring is provided on one of the folding rubber tubes, and a first connecting ring is provided on the other folding rubber tube. The first connecting ring and the second connecting ring are arranged in close contact with each other. The two folding rubber tubes are connected together by the first connecting ring and the second connecting ring. A plurality of connecting mechanisms are arranged around the surfaces of the first connecting ring and the second connecting ring. The connecting mechanisms include a second clamping block and a first clamping block. The first clamping block and the second clamping block are clamped with each other. The first clamping block is fixedly connected to the outer surface of the first connecting ring, and the second clamping block is fixedly connected to the outer surface of the second connecting ring.

[0009] Preferably, there are two first clamping blocks in each connection mechanism, the second clamping block is clamped between the two first clamping blocks, and a rotating button is rotatably connected on the surface of the second clamping block.

[0010] Preferably, the rotating button is rotatably mounted on the second clamping block via a rotating shaft, the rotating shaft is fixedly connected to the rotating button, a spring is provided at the rotating connection between the rotating shaft and the second clamping block, and two ends of the spring respectively abut against the rotating button and the second clamping block.

[0011] Preferably, cards are fixedly connected to both sides of the rotating button, and two cards are respectively arranged on both sides of both ends of the rotating button, and the two cards are respectively against the end surfaces of the two first card blocks.

[0012] Preferably, a slope is provided at the middle section of the card, and the slope abuts against the corner line of the first card block.

[0013] Preferably, a screw is installed on the mounting hole, and the mounting hole is connected to the surface of the constant velocity universal joint through the screw.

[0014] Compared with the prior art, the beneficial effect of the utility model is: in the utility model, when adding lubricating oil to the universal joint or repairing the universal joint, the rotating knob is rotated in the opposite direction to disengage the rotating knob from the first blocks on both sides, so that the first connecting ring and the second connecting ring can be separated, and the two folding rubber tubes are separated, folded and compressed, so that the staff can add lubrication or perform maintenance very conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a split dust cover for a constant velocity universal joint proposed by the utility model;

[0016] Figure 2 This is a schematic structural diagram of a split dust cover for a constant velocity universal joint proposed by the utility model when it is disassembled;

[0017] Figure 3 It is a schematic diagram of the installation structure of the connecting mechanism;

[0018] Figure 4 for Figure 2 Schematic diagram of the structure at A in the middle.

[0019] In the figure: 1 folding rubber tube, 2 connecting tube, 3 mounting ring, 4 first connecting ring, 5 second connecting ring, 6 mounting hole, 7 first clamping block, 8 second clamping block, 9 rotating shaft, 10 rotating knob, 11 card, 12 inclined surface. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely 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 of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-Figure 4 A split dust cover for a constant velocity universal joint comprises a folding rubber tube 1, two folding rubber tubes 1 are provided and are both funnel-shaped, one end of the two folding rubber tubes 1 are connected together, the other end of the two folding rubber tubes 1 are provided with a connecting tube 2, the end of the connecting tube 2 away from the folding rubber tube 1 is provided with a mounting ring 3, a plurality of mounting holes 6 are opened on the mounting ring 3, screws are installed on the mounting holes 6, the mounting holes 6 are connected to the surface of the constant velocity universal joint through the screws, and the mounting holes 6 are connected to the constant velocity universal joint through the screws;

[0023] A second connecting ring 5 is provided on one of the folding rubber tubes 1, and a first connecting ring 4 is provided on the other folding rubber tube 1. The first connecting ring 4 and the second connecting ring 5 are arranged in close contact with each other. The two folding rubber tubes 1 are connected together through the first connecting ring 4 and the second connecting ring 5. A plurality of connecting mechanisms are surrounded on the surfaces of the first connecting ring 4 and the second connecting ring 5. The connecting mechanisms include a second clamping block 8 and a first clamping block 7. The first clamping block 7 and the second clamping block 8 are clamped with each other. The first clamping block 7 is fixedly connected to the outer surface of the first connecting ring 4, and the second clamping block 8 is fixedly connected to the outer surface of the second connecting ring 5.

[0024] There are two first clamping blocks 7 in each connecting mechanism, and the second clamping block 8 is clamped between the two first clamping blocks 7. A rotating button 10 is rotatably connected to the surface of the second clamping block 8. The first clamping blocks 7 and the second clamping blocks 8 in multiple connecting mechanisms are clamped to each other, thereby achieving the connection effect of the first connecting ring 4 and the second connecting ring 5. After the first clamping block 7 and the second clamping block 8 are clamped, the rotating button 10 is rotated to clamp the rotating button 10 on the surface of the first clamping block 7, so that the connection effect of the first connecting ring 4 and the second connecting ring 5 is strengthened.

[0025] The rotating button 10 is rotatably installed on the second clamping block 8 through the rotating shaft 9. The rotating shaft 9 is fixedly connected to the rotating button 10. A spring is provided at the rotating connection between the rotating shaft 9 and the second clamping block 8. The two ends of the spring are respectively against the rotating button 10 and the second clamping block 8. Therefore, when the rotating button 10 is rotated, the friction force increased by the elastic force can ensure the stability of the angle of the rotating button 10, thereby strengthening the connecting function of the connecting mechanism.

[0026] Cards 11 are fixedly connected to both sides of the rotating button 10. The two cards 11 are respectively arranged on both sides of the two ends of the rotating button 10. The two cards 11 are respectively against the end faces of the two first card blocks 7. When the rotating button 10 is rotated, the two cards 11 will be driven to rotate, and then the cards 11 will be against the end faces of the two first card blocks 7. The rotating button 10 and the cards 11 cooperate with each other to enhance the effect of the connecting mechanism.

[0027] A bevel 12 is provided in the middle section of the card 11, and the bevel 12 abuts against the corner line of the first card block 7. When the card 11 abuts against the first card block 7, the bevel 12 provided on the card 11 can abut against the edge of the first card block 7. The card 11 is made of metal and has a certain elasticity, so the bevel 12 has a reinforcing effect on the card 11.

[0028] When using the dust cover, the left and right folding rubber tubes 1 can be installed from the two ends of the universal joint respectively. One end of the folding rubber tube 1 is thick and the other end is thin. The universal joint can be installed from the thick end. The thinner end is where the connecting tube 2 is provided, and the connection with the end surface of the universal joint is achieved through the mounting ring 3.

[0029] The left and right foldable rubber tubes 1 are connected by the first connecting ring 4 and the second connecting ring 5. The second card block 8 on the second connecting ring 5 is engaged with the first card block 7 on the first connecting ring 4, and then the rotating button 10 on the surface of the second card block 8 is directly rotated. When the rotating button 10 is rotated, it will drive the cards 11 installed at both ends to move, so that the two cards 11 can just be engaged with the end faces of the first card blocks 7 on both sides respectively. The cards 11 are used in conjunction with the inclined surface 12, and the rotating button 10 is connected to the second card block 8 through the rotating shaft 9. The card 11 set on the rotating button 10 is fixedly engaged with the first card block 7, thereby realizing the connection effect between the first connecting ring 4 and the second connecting ring 5, thereby connecting the two foldable rubber tubes 1 into a whole.

[0030] When adding lubricating oil to the universal joint or performing maintenance on the universal joint, the rotating knob 10 is rotated in the opposite direction to disengage the rotating knob 10 from the first clamping blocks 7 on both sides, so that the first connecting ring 4 and the second connecting ring 5 can be separated, and the two folding rubber tubes 1 are separated, folded and compressed, so that the staff can add lubrication or perform maintenance very conveniently.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A split dust cover for a constant velocity universal joint, comprising a foldable rubber tube (1), characterized in that: The foldable rubber tubes (1) are provided with two and both are funnel-shaped, one end of the two foldable rubber tubes (1) are connected together, the other end of the two foldable rubber tubes (1) are provided with a connecting tube (2), the end of the connecting tube (2) away from the foldable rubber tube (1) is provided with a mounting ring (3), and the mounting ring (3) is provided with a plurality of mounting holes (6); One of the folding rubber tubes (1) is provided with a second connecting ring (5), and the other of the folding rubber tubes (1) is provided with a first connecting ring (4); the first connecting ring (4) and the second connecting ring (5) are arranged in close contact with each other; the two folding rubber tubes (1) are connected together via the first connecting ring (4) and the second connecting ring (5); a plurality of connecting mechanisms are arranged around the surfaces of the first connecting ring (4) and the second connecting ring (5); the connecting mechanisms include a second clamping block (8) and a first clamping block (7); the first clamping block (7) and the second clamping block (8) are clamped with each other; the first clamping block (7) is fixedly connected to the outer surface of the first connecting ring (4); and the second clamping block (8) is fixedly connected to the outer surface of the second connecting ring (5).

2. A split dust cover for a constant velocity joint according to claim 1, characterized in that: There are two first clamping blocks (7) in each connection mechanism, and the second clamping block (8) is clamped between the two first clamping blocks (7). A rotating button (10) is rotatably connected on the surface of the second clamping block (8).

3. A split dust cover for a constant velocity joint according to claim 2, characterized in that: The rotating button (10) is rotatably mounted on the second clamping block (8) via a rotating shaft (9); the rotating shaft (9) is fixedly connected to the rotating button (10); a spring is provided at the rotation connection between the rotating shaft (9) and the second clamping block (8); two ends of the spring are respectively against the rotating button (10) and the second clamping block (8).

4. A split dust cover for a constant velocity joint according to claim 2, characterized in that: Cards (11) are fixedly connected to both sides of the rotating button (10), and the two cards (11) are respectively arranged on both sides of the two ends of the rotating button (10), and the two cards (11) are respectively abutted against the end surfaces of the two first card blocks (7).

5. A split dust cover for a constant velocity joint according to claim 4, characterized in that: A slope (12) is provided at the middle section of the card (11), and the slope (12) abuts against the corner line of the first card block (7).

6. A split dust cover for a constant velocity joint according to claim 1, characterized in that: A screw is installed on the mounting hole (6), and the mounting hole (6) is connected to the surface of the constant velocity universal joint through the screw.

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