Transition flange for drive axle

Abstract

The utility model relates to the technical field of automobile drive axles, and discloses a transition flange for a drive axle, which comprises two shafts, flanges are fixedly connected to close ends between the two shafts, a plurality of fixing bolts are arranged between the two flanges in a penetrating manner, fixing nuts are in threaded connection with the outer sides of the fixing bolts, and the fixing nuts are in threaded connection with the outer sides of the fixing bolts. A plurality of fixing shells are fixedly connected to the opposite sides of the two flanges, positioning shafts are slidably connected to the interiors of the fixing shells, sliding blocks are fixedly connected to one sides of the peripheries of the positioning shafts, springs are arranged on the other sides of the peripheries of the positioning shafts in a sleeving mode, and rotating rings are slidably connected to the outer sides of the shaft pieces. According to the utility model, the rotating ring is rotated to pull the connecting rope to drive the positioning shaft to move, so that the positioning shaft is separated from the interiors of the fixing bolt and the fixing nut. After the transition flange is connected, the bolt can be conveniently limited, the bolt and nut structure is prevented from loosening when the flange vibrates, and the connection stability of the transition flange is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive drive axles, in particular to a transition flange for a drive axle. Background Art

[0002] A drive axle is a mechanical device used to transmit power and rotational speed, usually used for the rear axle of a vehicle. It consists of several important components, including bearings, gears, differentials, etc. The drive axle transmits power to make the wheels of the vehicle rotate, thereby driving the vehicle forward. In a drive axle, the diameter of the shaft parts may vary due to different connected components. In this case, a transition flange is required to connect these shaft parts with different diameters.

[0003] Currently, most of the transition flanges used for connecting traditional automotive drive axles are connected through a bolt and nut structure. Two flanges are connected by bolts and nuts distributed in a circumferential manner, and then the drive shaft and the input end of the drive axle are connected.

[0004] However, although bolts and nuts can effectively connect two different components, when the drive axle rotates at high speed to drive the tires to rotate, the transition flange needs to bear the vibration generated by the high-speed rotation, which will directly cause the connection structure of the bolts and nuts to loosen. For this reason, a transition flange for a drive axle is proposed. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a transition flange for a drive axle, aiming to improve the problem that in the prior art, the transition flange needs to bear the vibration generated by the high-speed rotation, which will directly cause the connection structure of the bolts and nuts to loosen.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A transition flange for a drive axle includes two shaft parts. Flanges are fixedly connected to the adjacent ends of the two shaft parts. A plurality of fixing bolts penetrate between the two flanges, and fixing nuts are threadedly connected to the outer sides of the fixing bolts. A plurality of fixing shells are fixedly connected to the opposite sides of the two flanges. A positioning shaft is slidably connected inside the fixing shell. A slider is fixedly connected to one side of the outer periphery of the positioning shaft. A spring is sleeved on the other side of the outer periphery of the positioning shaft. A rotating ring is slidably connected to the outer side of the shaft part. A limiting block is fixedly connected to the inner wall of the rotating ring. A limiting groove is opened on the outer side of the shaft part. The limiting block is slidably connected inside the limiting groove. A connecting rope is installed between the rotating ring and the positioning shaft. A reinforcing component is arranged between the outer sides of the two flanges.

[0007] As a further description of the above technical solution:

[0008] The strengthening component includes two stabilizing rings. The inner side of the stabilizing ring is sleeved on the outer periphery of the flange. A plurality of reinforcing rib plates are fixedly connected to the outer side of the stabilizing ring. A buffer pad is arranged on one side of the reinforcing rib plate close to the flange. A plurality of movable shafts are fixedly connected to the side of the buffer pad away from the flange. A groove is formed inside the reinforcing rib plate, and a compression spring is arranged inside the groove.

[0009] As a further description of the above technical solution:

[0010] The outer side of the slider is slidably connected inside the fixed shell. One of the positioning shafts is inserted into the fixed bolt, and the other positioning shaft is inserted into the fixed nut.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the middle of the slider, and the other end of the spring is fixedly connected to the inner wall of the fixed shell.

[0013] As a further description of the above technical solution:

[0014] One end of the connecting rope is fixedly connected to the end of the positioning shaft away from the fixed bolt, and the other end of the connecting rope is fixedly connected to the outer side of the swivel ring.

[0015] As a further description of the above technical solution:

[0016] The outer periphery of the movable shaft is slidably connected inside the reinforcing rib plate, and the buffer pad abuts against the flange.

[0017] As a further description of the above technical solution:

[0018] Both sides of the stabilizing ring are fixedly connected with connecting ears, and a mounting bolt is installed between two adjacent connecting ears.

[0019] As a further description of the above technical solution:

[0020] One end of the compression spring is fixedly connected to the inner wall of the groove, and the other end of the compression spring is fixedly connected to the middle of the buffer pad.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, by pulling the rotating ring to pull the connecting rope to drive the positioning shaft to move, the positioning shaft is then disengaged from the inside of the fixing bolt and the fixing nut. Similarly, when the rotating ring is released, the compressed spring will push the slider to drive the positioning shaft to reset, and then insert the positioning shaft into the inside of the fixing bolt and the fixing nut, so that after the transition flange is connected, the bolt can be conveniently limited, avoiding loosening of the bolt and nut structure during the vibration of the flange, and ensuring the stability of the connection of the transition flange.

[0023] 2. In the present utility model, the outer side of the flange is wrapped by the stabilizing ring and the reinforcing rib plate, ensuring that when the two flanges are stressed, they can directly squeeze the buffer pad on the reinforcing rib plate, and then complete the buffering of the force through the cooperation of the buffer pad and the compression spring, ensuring that the transition flange can remain stable during operation, and further strengthening the connection strength of the transition flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a perspective view of a transition flange for a drive axle proposed by the present utility model;

[0025] Figure 2 is a schematic diagram of the flange structure of a transition flange for a drive axle proposed by the present utility model;

[0026] Figure 3 is a schematic diagram of the internal structure of the fixing shell of a transition flange for a drive axle proposed by the present utility model;

[0027] Figure 4 is a schematic diagram of the reinforcing rib plate structure of a transition flange for a drive axle proposed by the present utility model;

[0028] Figure 5 is a schematic diagram of the compression spring structure of a transition flange for a drive axle proposed by the present utility model;

[0029] Figure 6 is a schematic diagram of the limiting block structure of a transition flange for a drive axle proposed by the present utility model.

[0030] LEGEND DESCRIPTION:

[0031] 1. Shaft member; 2. Flange; 3. Fixing bolt; 4. Fixing nut; 5. Fixing shell; 6. Positioning shaft; 7. Slider; 8. Spring; 9. Rotating ring; 10. Connecting rope; 11. Stabilizing ring; 12. Connecting ear; 13. Mounting bolt; 14. Reinforcing rib plate; 15. Buffer pad; 16. Moving shaft; 17. Groove; 18. Compression spring; 19. Limiting block; 20. Limiting groove. SPECIFIC EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Referring to Figure 1 、 Figure 3 and Figure 6 , an embodiment provided by the present utility model: a transition flange for a drive axle, including two shaft members 1. Flanges 2 are fixedly connected to the adjacent ends between the two shaft members 1. Corresponding grooves and protrusions are provided between the two flanges 2, which can make the protrusions and grooves fit after the two flanges 2 are connected, increasing the transmission strength between the flanges 2. At the same time, the two shaft members 1 are respectively connected to the corresponding components inside the drive axle, ensuring that the power of the vehicle drive axle can be stably output to the tires. A plurality of fixing bolts 3 penetrate between the two flanges 2, and fixing nuts 4 are threadedly connected to the outside of the fixing bolts 3. The flanges 2 can be restricted together by the fixing bolts 3 and the fixing nuts 4 to prevent loosening between the two flanges 2. A plurality of fixing shells 5 are fixedly connected to the opposite sides between the two flanges 2. A positioning shaft 6 is slidably connected inside the fixing shell 5. A slider 7 is fixedly connected to one side of the outer circumference of the positioning shaft 6. A spring 8 is sleeved on the other side of the outer circumference of the positioning shaft 6. A rotating ring 9 is slidably connected to the outside of the shaft member 1. A limiting block 19 is fixedly connected to the inner wall of the rotating ring 9. A limiting groove 20 is provided on the outside of the shaft member 1. The limiting block 19 is slidably connected inside the limiting groove 20. A connecting rope 10 is installed between the rotating ring 9 and the positioning shaft 6. Just pull the rotating ring 9 in the direction away from the flange 2, which will pull the connecting rope 10, and then the connecting rope 10 will pull the positioning shaft 6 closer to the position of the rotating ring 9. At the same time, the positioning shaft 6 will respectively disengage from the inside of the fixing bolt 3 and the fixing nut 4, and the positioning shaft 6 will also drive the slider 7 to compress the spring 8 when moving. At this time, the worker can quickly disassemble the fixing bolt 3 and the fixing nut 4 with the help of tools. At the same time, during installation, the fixing bolt 3 and the fixing nut 4 can be limited by the positioning shaft 6 to ensure that there is no sign of loosening.

[0034] Referring to Figure 2 - Figure 3, a reinforcing component is provided between the outer sides of the two flanges 2. By means of the reinforcing component, the connection strength between the two flanges 2 can be improved, ensuring the stability of the connection between the transition flanges, and avoiding premature damage or deformation of the flanges 2 when stressed. The outer side of the slider 7 is slidably connected inside the fixed housing 5, so that the positioning shaft 6 will not disengage from the inside of the fixed housing 5 when stressed and moving. One side of the positioning shaft 6 is inserted into the fixed bolt 3, and the other side of the positioning shaft 6 is inserted into the fixed nut 4. This enables the positioning shaft 6 to position both the fixed bolt 3 and the fixed nut 4 simultaneously, preventing loosening between the fixed bolt 3 and the fixed nut 4 after tightening. One end of the spring 8 is fixedly connected to the middle of the slider 7, and the other end of the spring 8 is fixedly connected to the inner wall of the fixed housing 5. The spring 8 can press against the slider 7, and then tightly insert the positioning shaft 6 into the corresponding fixed nut 4 and fixed bolt 3. One end of the connecting rope 10 is fixedly connected to the end of the positioning shaft 6 away from the fixed bolt 3, and the other end of the connecting rope 10 is fixedly connected to the outside of the swivel ring 9. The connecting rope 10 can conveniently drive all the positioning shafts 6, making disassembly and maintenance more convenient, and at the same time ensuring the connection stability between the fixed bolt 3 and the fixed nut 4.

[0035] Refer to Figure 1 , Figure 4 and Figure 5The reinforcement assembly includes two stabilizing rings 11, the inner sides of which are sleeved around the outer periphery of the flange 2. Multiple reinforcing ribs 14 are fixedly connected to the outer sides of the stabilizing rings 11. A buffer pad 15 is provided on the side of the reinforcing rib 14 close to the flange 2, and multiple movable shafts 16 are fixedly connected to the side of the buffer pad 15 away from the flange 2. The reinforcing ribs 14 have grooves 17 formed inside them, and compression springs 18 are installed inside the grooves 17. When the flange 2 shakes, the buffer pads 15 are squeezed. At the same time, when the buffer pads 15 are subjected to force, they compress the compression springs 18 inside the grooves 17, thereby buffering the force applied to the buffer pads 15, further protecting the flange 2 and ensuring the stability of the connection between the two flanges 2. During this process, the buffer pads 15 push the movable shafts 16 to move within the reinforcing ribs 14, preventing the buffer pads 15 from deflecting and thus stably buffering the force applied to the flange 2. The outer periphery of the movable shaft 16 is slidably connected to the reinforcing ribs 14, allowing the buffer pads 15 to remain stable when subjected to force. The cushion 15 abuts against the flange 2, allowing the cushion 15 to immediately buffer the force received by the flange 2. Connecting ears 12 are fixedly connected to both sides of the stabilizing ring 11, and mounting bolts 13 are installed between two adjacent connecting ears 12. The cooperation between the connecting ears 12 and the mounting bolts 13 allows the reinforcement assembly to be easily disassembled, and then the two stabilizing rings 11 are separated and removed from the flange 2, facilitating the subsequent disassembly of the two flanges 2. One end of the compression spring 18 is fixedly connected to the inner wall of the groove 17, and the other end of the compression spring 18 is fixedly connected to the middle of the cushion 15. The compression spring 18 can buffer the force received by the cushion 15, allowing the reinforcing rib 14 to support the two flanges 2.

[0036] Working Principle: When the transition flange is working, when the fixing bolt 3 and fixing nut 4 vibrate due to the rotation of the flange, the positioning shaft 6 inserted into the fixing bolt 3 and fixing nut 4 limits them in position, ensuring that the fixing bolt 3 and fixing nut 4 will not loosen during operation. At the same time, during disassembly, it is only necessary to pull the swivel 9 to pull the connecting rope 10, and then the connecting rope 10 will pull the positioning shaft 6 toward the position of the swivel 9. At the same time, the positioning shaft 6 will be disengaged from the fixing bolt 3 and fixing nut 4 respectively. When the positioning shaft 6 moves, it will also drive the slider 7 to compress the spring 8. At this time, the worker can use tools to quickly remove the fixing bolt 3 and fixing nut 4. During installation, it is only necessary to first install the fixing bolt 3 inside the two flanges 2 and loosen the swivel 9 on the side that is engaged with the fixing bolt 3. This will cause the spring 8 to reset and push the slider 7, and then insert the positioning shaft 6 into the fixing bolt 3. After that, the worker only needs to install the fixing nut 4 on the corresponding fixing bolt 3 and tighten it until the fixing nut 4 is tightened and the hole on it is aligned with the positioning shaft 6 on the other side. At this time, just loosen the swivel 9 on the other side to insert the positioning shaft 6 into the fixing nut 4, completing the flange connection installation and ensuring the stability of the connection between the two flanges 2.

[0037] When the flange 2 is driven to rotate, the stabilizing ring 11 and the reinforcing rib plate 14 sleeved outside the two flanges 2 can further restrict it to prevent loosening between the two flanges 2. At the same time, when the flange 2 shakes, it will squeeze the buffer pad 15. Meanwhile, during the force-bearing process of the buffer pad 15, the compression spring 18 inside the groove 17 will be compressed, thereby buffering the force received by the buffer pad 15 and further protecting the flange 2 to ensure the stability of the connection between the two flanges 2.

[0038] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transition flange for a drive axle, comprising two shaft members (1), characterized in that: The adjacent ends of the two shaft members (1) are fixedly connected with flanges (2), a plurality of fixing bolts (3) are provided between the inside of the two flanges (2), the outer sides of the fixing bolts (3) are threadedly connected with fixing nuts (4), the opposite sides of the two flanges (2) are fixedly connected with a plurality of fixing shells (5), the interior of the fixing shells (5) is slidably connected with a positioning shaft (6), one side of the outer periphery of the positioning shaft (6) is fixedly connected with a slider (7), the other side of the outer periphery of the positioning shaft (6) is sleeved with a spring (8), and the outer side of the shaft member (1) is slidably connected with a rotating ring (9). The inner wall of the rotating ring (9) is fixedly connected to a limiting block (19), a limiting groove (20) is provided on the outer side of the shaft (1), and the limiting block (19) is slidably connected to the inside of the limiting groove (20). A connecting rope (10) is installed between the rotating ring (9) and the positioning shaft (6), and the outer side of the slider (7) is slidably connected to the inside of the fixed shell (5). One side of the positioning shaft (6) is inserted into the inside of the fixing bolt (3), and the other side of the positioning shaft (6) is inserted into the inside of the fixing nut (4). A reinforcing component is provided between the outer sides of the two flanges (2).

2. The transition flange for a drive axle according to claim 1, characterized in that: The reinforcing assembly includes two stabilizing rings (11), the inner side of the stabilizing ring (11) is sleeved on the outer periphery of the flange (2), and the outer side of the stabilizing ring (11) is fixedly connected to a plurality of reinforcing ribs (14), a buffer pad (15) is provided on the side of the reinforcing rib (14) close to the flange (2), and a plurality of movable shafts (16) are fixedly connected on the side of the buffer pad (15) away from the flange (2), a groove (17) is provided inside the reinforcing rib (14), and a compression spring (18) is provided inside the groove (17).

3. The transition flange for a drive axle according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to the middle of the slider (7), and the other end of the spring (8) is fixedly connected to the inner wall of the fixed shell (5).

4. The transition flange for a drive axle according to claim 1, characterized in that: One end of the connecting rope (10) is fixedly connected to an end of the positioning shaft (6) away from the fixing bolt (3), and the other end of the connecting rope (10) is fixedly connected to the outside of the rotating ring (9).

5. The transition flange for a drive axle according to claim 2, characterized in that: The outer periphery of the movable shaft (16) is slidably connected to the interior of the reinforcing rib plate (14), and the buffer pad (15) and the flange (2) are in contact with each other.

6. The transition flange for a drive axle according to claim 2, characterized in that: Connecting ears (12) are fixedly connected to both sides of the stabilizing ring (11), and a mounting bolt (13) is installed between two adjacent connecting ears (12).

7. The transition flange for a drive axle according to claim 2, characterized in that: One end of the compression spring (18) is fixedly connected to the inner wall of the groove (17), and the other end of the compression spring (18) is fixedly connected to the middle of the buffer pad (15).

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