Automobile transmission shaft connecting flange

Abstract

The utility model relates to the technical field of transmission shaft flanges, and discloses an automobile transmission shaft connecting flange which comprises a flange piece installed between two transmission shaft bodies, and the flange piece comprises a first flange plate, a flange pad and a second flange plate. The sides, away from each other, of the first flange plate and the second flange plate are fixedly connected with the two transmission shaft bodies respectively, the flange pad is located between the first flange plate and the second flange plate, and a connecting assembly is arranged on the outer side of the second flange plate and connected with the side, away from the second flange plate, of the first flange plate. According to the automobile transmission shaft connecting flange, connection between the first flange plate and the second flange plate is firmer through the connecting assembly, the risk that two flange plates are separated from each other when two transmission shafts are longitudinally pulled is reduced, and the stability of transmission shaft connection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drive shaft flanges, and specifically relates to an automotive drive shaft connecting flange. Background Technique

[0002] An automotive drive shaft (also known as a propeller shaft) is an important part of a vehicle's transmission system. Its main function is to transmit the power of the engine from the transmission or transfer case to the wheels. The drive shaft usually consists of one or more shafts, and these shafts need to be connected together through connecting devices (such as flanges) to ensure smooth power transmission; the connection of automotive drive shafts commonly uses connecting flanges to connect two drive shafts; it usually includes two parts, and each part is designed with holes and can be fixed together through bolts and nuts.

[0003] For example, the patent with the publication number CN212028358U discloses a quickly installable automotive drive shaft flange, which includes a first flange plate and a second flange plate. Through grooves are opened at the centers of the first flange plate and the second flange plate. Fixed columns are fixedly connected to the peripheries on the right side of the first flange plate, and clamping grooves for cooperating with the fixed columns are opened at the peripheries on the left side of the second flange plate. Vertical grooves are opened at the peripheries on the surface of the second flange plate, and a limiting mechanism is arranged in the inner cavity of the vertical grooves. Through the cooperation of the movable plate, positioning pin, spring and positioning hole, it is convenient for the user to clamp the positioning pin and the positioning hole through the pulling force of the spring, and it is convenient for the user to quickly limit and fix the fixed column through the positioning pin, improving the installation speed of the flange, avoiding the user from using bolts, increasing the installation time of the automotive drive shaft, and improving the work efficiency of the user, thus solving the problem of slow installation speed of traditional automotive drive shaft flanges.

[0004] However, the connecting flange in the above technology still has the following problems:

[0005] Although the quick connection and installation between the two flange plates can be realized through the clamping cooperation between the positioning pin and the positioning hole, since the positioning hole is opened on the fixed column, the diameter of the positioning pin is relatively thin. When the two drive shafts pull on each other, the relatively thin positioning pin cannot well bear the longitudinal pulling force, which may cause the deformation of the positioning pin and even the separation of the two mutually connected flange plates, and its flange structure strength is poor. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides an automotive drive shaft connecting flange, such as: improving the mutual connection strength between the two flange plates, so that when the two drive shafts generate longitudinal pulling force, they are not easily separated from each other.

[0007] To achieve the above object, the present utility model provides the following technical solution: An automotive drive shaft connecting flange, comprising a flange member installed between two drive shaft bodies, the flange member including a first flange plate, a flange gasket, and a second flange plate. The sides of the first flange plate and the second flange plate facing away from each other are respectively fixedly connected to the two drive shaft bodies. The flange gasket is located between the first flange plate and the second flange plate. A connecting component is provided on the outer side of the second flange plate, and the connecting component is connected to the side of the first flange plate away from the second flange plate.

[0008] Further, a plurality of uniformly distributed positioning slots are penetrated through the circumferential side of the first flange plate, and a plurality of uniformly distributed positioning blocks are fixedly connected to the side of the second flange plate close to the first flange plate. The plurality of positioning blocks are respectively slidably connected to the plurality of positioning slots.

[0009] Further, the flange gasket is located inside the plurality of positioning blocks.

[0010] Further, the connecting component includes a sleeve and a plurality of clamping blocks. The sleeve is sleeved on the second flange plate and is rotatably connected to the second flange plate. A positioning ring is fixedly connected to the inner wall of the sleeve, and an annular positioning groove is formed on the outer wall of the second flange plate. The positioning ring is rotatably connected to the annular positioning groove. The plurality of clamping blocks are all fixedly connected to the inner wall of the end of the sleeve close to the first flange plate, and the plurality of clamping blocks are arranged to match the plurality of positioning slots. The sides of the plurality of clamping blocks close to the sleeve are all abutted against the side of the first flange plate away from the second flange plate.

[0011] Further, a disc is fixedly connected to the end of the sleeve away from the plurality of clamping blocks. A sleeve hole is penetrated through the middle position of the disc. The disc is abutted against the side of the second flange plate away from the first flange plate, and the sleeve hole is sleeved on the adjacent drive shaft body.

[0012] Further, a spiral torsion spring is fixedly connected to the inner wall of the sleeve hole, and the other end of the spiral torsion spring is fixedly connected to the second flange plate.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] For this automotive drive shaft connecting flange, through the connecting component, the connection between the first flange plate and the second flange plate is made more firm, reducing the risk of the two flange plates separating from each other when the two drive shafts are longitudinally pulled, and improving the stability of the drive shaft connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall external connection structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the overall external connection structure of the present utility model from another angle;

[0017] Figure 3 Explosion schematic diagram of the connection structure based on Figure 1 ;

[0018] Figure 4 Explosion schematic diagram of the connection structure based on Figure 3 ;

[0019] Figure 5 Explosion schematic diagram of the connection structure based on Figure 4 ;

[0020] In the figure: 1. Transmission shaft body; 2. First flange; 3. Flange gasket; 4. Second flange; 5. Positioning block; 6. Sleeve; 7. Clamping block; 8. Positioning ring; 9. Disc; 10. Spiral torsion spring; 201. Positioning card slot; 401. Annular positioning slot; 901. Sleeve hole. Specific implementation mode

[0021] 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.

[0022] Please refer to Figure 1 - Figure 5 , a connecting flange for an automotive transmission shaft, including a flange member installed between two transmission shaft bodies 1. The flange member includes a first flange 2, a flange gasket 3 and a second flange 4. The sides of the first flange 2 and the second flange 4 away from each other are respectively fixedly connected to the two transmission shaft bodies 1. The flange gasket 3 is located between the first flange 2 and the second flange 4. A connecting component is provided on the outer side of the second flange 4, and the connecting component is connected to the side of the first flange 2 away from the second flange 4.

[0023] As Figure 1 - Figure 5 shown, a connecting flange for an automotive transmission shaft in the present utility model is similar to the existing connecting flange for an automotive transmission shaft. The main improvement point of the present utility model is to improve the connection strength between the two flanges and reduce the risk of the connection between the two flanges coming off. As Figures 1 to 5 shown, when the connecting flange for an automotive transmission shaft in the present utility model is in use, the flange gasket 3 is placed between the first flange 2 and the second flange 4, and the first flange 2 and the second flange 4 are connected to each other through the connecting component, so as to connect and drive the two transmission shaft bodies 1. The connection method is simple and fast.

[0024] As Figure 1 - Figure 5As shown, a plurality of uniformly distributed positioning card slots 201 are penetrated and opened on the circumferential side of the first flange 2. A plurality of uniformly distributed positioning blocks 5 are fixedly connected to the side of the second flange 4 close to the first flange 2. The plurality of positioning blocks 5 are respectively slidably connected to the plurality of positioning card slots 201. When the first flange 2 and the second flange 4 are moved closer to each other, the plurality of positioning blocks 5 at the end of the second flange 4 are aligned with the positioning card slots 201 on the first flange 2, and the positioning blocks 5 are inserted into the corresponding positioning card slots 201. When the transmission shaft body 1 rotates, through the connection between the positioning blocks 5 and the positioning card slots 201, the first flange 2 and the second flange 4 rotate synchronously. Compared with the traditional connection method using bolts, it can withstand stronger rotational torque.

[0025] As Figure 3 - Figure 5 shown, the flange gasket 3 is located inside the plurality of positioning blocks 5. The flange gasket 3 is arranged inside the plurality of positioning blocks 5, making the connection between the first flange 2 and the second flange 4 tighter.

[0026] As Figure 1 - Figure 5 shown, the connecting component includes a sleeve 6 and a plurality of clamping blocks 7. The sleeve 6 is sleeved on the second flange 4 and is rotatably connected to the second flange 4. A positioning ring 8 is fixedly connected to the inner wall of the sleeve 6. An annular positioning groove 401 is opened on the outer wall of the second flange 4. The positioning ring 8 is rotatably connected to the annular positioning groove 401. The plurality of clamping blocks 7 are all fixedly connected to the inner wall of the end of the sleeve 6 close to the first flange 2, and the plurality of clamping blocks 7 are arranged to match the plurality of positioning card slots 201. One side of the plurality of clamping blocks 7 close to the sleeve 6 abuts against the side of the first flange 2 away from the second flange 4. During installation, first rotate the sleeve 6 on the second flange 4 so that the plurality of clamping blocks 7 are aligned with the positioning blocks 5 at the end of the second flange 4. Then move the second flange 4 and the first flange 2 closer to each other, and insert the plurality of clamping blocks 7 and the plurality of positioning blocks 5 into the positioning card slots 201. Then continue to move the first flange 2 and the second flange 4 closer so that the plurality of clamping blocks 7 slide out from the other end of the positioning card slots 201. Then rotate the sleeve 6 again so that the plurality of clamping blocks 7 are misaligned with the positioning card slots 201, thereby hooking the first flange 2 inside the sleeve 6 to realize the connection and installation between the first flange 2 and the second flange 4. At this time, the plurality of clamping blocks 7 and the sleeve 6 pull the first flange 2 towards the second flange 4, so that the longitudinal pulling force that can be borne between the two transmission shaft bodies 1 is stronger.

[0027] As Figure 1 - Figure 5As shown, one end of the sleeve 6 away from a plurality of clamping blocks 7 is fixedly connected with a disc 9. A sleeve hole 901 is penetrated and opened at the middle position of the disc 9. The disc 9 abuts against the side of the second flange 4 away from the first flange 2. The sleeve hole 901 sleeves the adjacent transmission shaft body 1. Through the connection between the disc 9 and the sleeve 6, in cooperation with a plurality of clamping blocks 7, the longitudinal connection strength between the first flange 2 and the second flange 4 can be made stronger, further improving the connection strength.

[0028] As Figure 2 shown, a spiral torsion spring 10 is fixedly connected to the inner wall of the sleeve hole 901, and the other end of the spiral torsion spring 10 is fixedly connected to the second flange 4. Through the spiral torsion spring 10, the position of the sleeve 6 on the second flange 4 can be limited through the disc 9, so that after a plurality of clamping blocks 7 are misaligned with the positioning card slots 201, under non-artificial influence, the clamping blocks 7 will not be realigned with the positioning card slots 201, resulting in the separation of the first flange 2 and the second flange 4 from each other, improving the connection stability.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. An automobile transmission shaft connecting flange, comprising a flange member installed between two transmission shaft bodies (1), characterized in that: The flange member comprises a first flange (2), a flange gasket (3) and a second flange (4); the first flange (2) and the second flange (4) are fixedly connected to two transmission shaft bodies (1) at sides away from each other; the flange gasket (3) is located between the first flange (2) and the second flange (4); a connecting component is provided on the outer side of the second flange (4); and the connecting component is connected to the side of the first flange (2) away from the second flange (4).

2. The automobile transmission shaft connecting flange according to claim 1, characterized in that: A plurality of evenly distributed positioning slots (201) are formed through the circumference of the first flange (2); a plurality of evenly distributed positioning blocks (5) are fixedly connected to a side of the second flange (4) close to the first flange (2); and the plurality of positioning blocks (5) are respectively slidably connected to the plurality of positioning slots (201).

3. The automobile transmission shaft connecting flange according to claim 2, characterized in that: The flange gasket (3) is located inside the plurality of positioning blocks (5).

4. The automobile transmission shaft connecting flange according to claim 2 or 3, characterized in that: The connection assembly comprises a sleeve (6) and a plurality of clamping blocks (7); the sleeve (6) is sleeved with the second flange (4) and is rotatably connected to the second flange (4); a positioning ring (8) is fixedly connected to the inner wall of the sleeve (6); an annular positioning groove (401) is formed on the outer wall of the second flange (4); the positioning ring (8) is rotatably connected to the annular positioning groove (401); the plurality of clamping blocks (7) are fixedly connected to the inner wall of the sleeve (6) at one end close to the first flange (2); the plurality of clamping blocks (7) are matched with the plurality of positioning grooves (201); and the sides of the plurality of clamping blocks (7) close to the sleeve (6) are abutted against the sides of the first flange (2) away from the second flange (4).

5. The automobile transmission shaft connecting flange according to claim 4, characterized in that: The end of the sleeve (6) away from the plurality of clamping blocks (7) is fixedly connected to a disc (9), a sleeve hole (901) is provided through the middle of the disc (9), the disc (9) abuts against a side of the second flange (4) away from the first flange (2), and the sleeve hole (901) is sleeved on an adjacent transmission shaft body (1).

6. The automobile transmission shaft connecting flange according to claim 5, characterized in that: A vortex torsion spring (10) is fixedly connected to the inner wall of the sleeve hole (901), and the other end of the vortex torsion spring (10) is fixedly connected to the second flange (4).

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