Transmission shaft assembly and automobile

Abstract

The utility model discloses a transmission shaft assembly and an automobile, and belongs to the technical field of transmission shafts, the transmission shaft assembly comprises a shaft body, two ends of the shaft body are respectively and fixedly connected with a first aluminum welding fork and a second aluminum welding fork, the first aluminum welding fork is in transmission connection with a first flange fork, and one end of the shaft body close to the first flange fork is rotatably connected with a dustproof mechanism. A first connecting shaft is in transmission connection between the first flange fork and the first aluminum welding fork, a limiting mechanism is arranged between the first connecting shaft and the first aluminum welding fork, the two ends of the first connecting shaft are hollow, the limiting mechanism comprises a first limiting part arranged in the first connecting shaft, and the first limiting part is symmetrically in transmission connection with first limiting blocks; the first limiting block abuts against the first aluminum welding fork. The dustproof mechanism is arranged between the shaft body and the first flange fork, dust is prevented from entering the space between the first flange fork and the shaft body to affect the rotation effect, meanwhile, the arranged first limiting part is used for reducing vibration excitation of the transmission shaft assembly to the whole vehicle in the running process of the vehicle, and the comfort of the vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission shafts, and in particular relates to a transmission shaft assembly and a car. Background Art

[0002] As an important component of the vehicle, the drive shaft assembly mainly transmits the torque input from the transmission or transfer case to the front and rear axles to ensure the normal driving of the vehicle. During the driving of the vehicle, it should maintain stable operation. At present, the automotive drive shaft assembly is usually a steel part, consisting of a universal joint, a spline sleeve, a solid spline shaft, a shaft rod and a fork. During use, due to the large mass, the unbalance of the product is difficult to control, and the large moment of inertia will have an adverse excitation effect on the vehicle during operation, affecting the comfort of the vehicle. Utility Model Content

[0003] The purpose of the utility model is to provide a transmission shaft assembly and a vehicle to solve the problems existing in the above-mentioned prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following solution: the utility model provides a transmission shaft assembly, including a shaft body, wherein two ends of the shaft body are respectively fixed with a first aluminum welding fork and a second aluminum welding fork, the first aluminum welding fork is transmission-connected with a first flange fork, and the second aluminum welding fork is transmission-connected with a second flange fork, and one end of the shaft body close to the first flange fork is rotatably connected with a dustproof mechanism, and the dustproof mechanism is located on the outside of the first flange fork, and a first connecting shaft is transmission-connected between the first flange fork and the first aluminum welding fork, and a limiting mechanism is provided between the first connecting shaft and the first aluminum welding fork, and the two ends of the first connecting shaft are hollow, and the limiting mechanism includes a first limiting portion arranged in the first connecting shaft, and the first limiting portion is symmetrically transmission-connected with a first limiting block, and the first limiting block abuts against the first aluminum welding fork.

[0005] Preferably, the first limiting portion includes a second connecting shaft rotatably connected to the first connecting shaft, one end of the second connecting shaft extends to the outside of the first connecting shaft, and the end of the second connecting shaft located in the first connecting shaft is fixedly connected to the first bevel gear, and the first limiting block is internally threaded with a lead screw, and the end of the lead screw close to the first bevel gear is fixedly connected to the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0006] Preferably, first connecting plates are slidably connected to both sides of the first limiting block, the first connecting plate is located in the first connecting shaft and fixedly connected to the first connecting shaft, and a gap is provided between the first connecting plate and the second connecting shaft.

[0007] Preferably, a buffer pad is provided between the first aluminum welding fork and the first connecting shaft, and the first limiting block abuts against the buffer pad.

[0008] Preferably, the dustproof mechanism includes a dustproof base rotatably connected to the outside of the shaft body, the top of the dustproof base is detachably connected with a dustproof top cover, the dustproof top cover is rotatably connected to the shaft body, the dustproof base is fixed to the first flange fork, the dustproof top cover is movably connected to the first flange fork, and second limiting parts are respectively provided on both sides of the dustproof top cover, and the second limiting parts are respectively adapted to the dustproof base.

[0009] Preferably, the second limiting portion includes a first groove arranged in the dustproof top cover, a second limiting block is slidably connected in the first groove, a first sliding groove is provided on the bottom surface of the first groove, the first sliding groove is connected to the bottom of the dustproof top cover, a first limiting plate is fixedly connected to the bottom surface of the second limiting block, a second groove is provided on the top surface of the dustproof base, the first limiting plate extends into the second groove and is adapted to the second groove, and a first spring is provided between the first limiting plate and the first sliding groove.

[0010] An automobile comprises the transmission shaft assembly mentioned above.

[0011] The utility model discloses the following technical effects: the utility model sets a dustproof mechanism between the shaft body and the first flange fork to prevent dust from entering between the first flange fork and the shaft body and affecting the rotation effect; at the same time, the first limit portion is used to reduce the vibration excitation of the drive shaft assembly on the entire vehicle during driving, thereby improving the comfort of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 It is a structural schematic diagram of the transmission shaft assembly of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the transmission shaft assembly of the utility model;

[0015] Figure 3 This is the internal front view of the transmission shaft assembly of the utility model;

[0016] Figure 4 for Figure 3 A partial enlarged view of middle A;

[0017] Figure 5 It is a structural schematic diagram of the dustproof mechanism of the utility model.

[0018] In the figure: 1. shaft body; 2. first aluminum welding fork; 3. second aluminum welding fork; 4. first flange fork; 5. first connecting shaft; 6. first limit block; 7. second connecting shaft; 8. first bevel gear; 9. lead screw; 10. second bevel gear; 11. first connecting plate; 12. buffer pad; 13. dustproof base; 14. dustproof top cover; 15. first groove; 16. second limit block; 17. first slide groove; 18. first limit plate; 19. second groove; 20. first spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Reference Figure 1-Figure 5 As shown, this embodiment provides a transmission shaft assembly, including a shaft body 1, with a first aluminum welding fork 2 and a second aluminum welding fork 3 fixedly connected at both ends of the shaft body 1 respectively, the first aluminum welding fork 2 is transmission-connected to the first flange fork 4, and the second aluminum welding fork 3 is transmission-connected to the second flange fork, and one end of the shaft body 1 close to the first flange fork 4 is rotatably connected to a dustproof mechanism, and the dustproof mechanism is located on the outside of the first flange fork 4, and a first connecting shaft 5 is transmission-connected between the first flange fork 4 and the first aluminum welding fork 2, and a limiting mechanism is provided between the first connecting shaft 5 and the first aluminum welding fork 2, and both ends of the first connecting shaft 5 are hollow, and the limiting mechanism includes a first limiting portion arranged in the first connecting shaft 5, and the first limiting portion is symmetrically transmission-connected to a first limiting block 6, and the first limiting block 6 abuts against the first aluminum welding fork 2.

[0022] The central axis body 1 of the utility model is made of basalt fiber material, which has the characteristics of high breaking strength, high temperature resistance and permanent flame retardancy. At the same time, the weight of the transmission shaft assembly is reduced, thereby reducing the rotational inertia. A dustproof mechanism is provided between the axis body 1 and the first flange fork 4 to prevent dust from entering between the first flange fork 4 and the axis body 1 and affecting the rotation effect. At the same time, the first limit portion is provided to reduce the vibration excitation of the transmission shaft assembly on the entire vehicle during driving, thereby improving the comfort of the vehicle.

[0023] A further optimized solution is that the first limiting portion includes a second connecting shaft 7 rotatably connected to the first connecting shaft 5, one end of the second connecting shaft 7 extends to the outside of the first connecting shaft 5, and the end of the second connecting shaft 7 located in the first connecting shaft 5 is fixedly connected to the first bevel gear 8, the first limiting block 6 is internally threaded with a lead screw 9, and the end of the lead screw 9 close to the first bevel gear 8 is fixedly connected to the second bevel gear 10, and the second bevel gear 10 is meshed with the first bevel gear 8.

[0024] According to a further optimization scheme, first connecting plates 11 are slidably connected to both sides of the first limit block 6 , the first connecting plates 11 are located in the first connecting shaft 5 and fixedly connected to the first connecting shaft 5 , and a gap is provided between the first connecting plate 11 and the second connecting shaft 7 .

[0025] When it is necessary to limit the first connecting shaft 5, rotate the second connecting shaft 7, the second connecting shaft 7 drives the first bevel gear 8 to rotate, the first bevel gear 8 drives the second bevel gears 10 on both sides to rotate, the second bevel gear 10 drives the lead screw 9 to rotate, and push the first limit block 6 to the outside of the first connecting shaft 5, so that the first limit block 6 is respectively in contact with the buffer pad 12 and the first aluminum welding fork 2.

[0026] According to a further optimized solution, a buffer pad 12 is provided between the first aluminum welding fork 2 and the first connecting shaft 5 , and the first limiting block 6 abuts against the buffer pad 12 .

[0027] A further optimized solution is that the dustproof mechanism includes a dustproof base 13 rotatably connected to the outside of the shaft body 1, a dustproof top cover 14 is detachably connected to the top of the dustproof base 13, the dustproof top cover 14 is rotatably connected to the shaft body 1, the dustproof base 13 is fixedly connected to the first flange fork 4, the dustproof top cover 14 is movably connected to the first flange fork 4, and second limiting parts are respectively provided on both sides of the dustproof top cover 14, and the second limiting parts are respectively adapted to the dustproof base 13.

[0028] A further optimized solution is that the second limiting portion includes a first groove 15 arranged on the dustproof top cover 14, a second limiting block 16 is slidably connected in the first groove 15, a first slide groove 17 is provided on the bottom surface of the first groove 15, the first slide groove 17 is connected to the bottom of the dustproof top cover 14, a first limiting plate 18 is fixedly connected to the bottom surface of the second limiting block 16, a second groove 19 is provided on the top surface of the dustproof base 13, the first limiting plate 18 extends into the second groove 19 and is adapted to the second groove 19, and a first spring 20 is provided between the first limiting plate 18 and the first slide groove 17.

[0029] When the dustproof top cover 14 and the dustproof base 13 need to be closed, the second limit block 16 is pushed toward the side close to the first spring 20 so that the first limit plate 18 enters the second groove 19 , and then the second limit block 16 is released so that the first limit plate 18 is stuck in the second groove 19 .

[0030] An automobile comprises the transmission shaft assembly mentioned above.

[0031] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A transmission shaft assembly, characterized in that: The invention comprises a shaft body (1), the two ends of which are respectively fixedly connected with a first aluminum welding fork (2) and a second aluminum welding fork (3), the first aluminum welding fork (2) is transmission-connected with a first flange fork (4), the second aluminum welding fork (3) is transmission-connected with a second flange fork, one end of the shaft body (1) close to the first flange fork (4) is rotationally connected with a dustproof mechanism, the dustproof mechanism is located on the outer side of the first flange fork (4), a first connecting shaft (5) is transmission-connected between the first flange fork (4) and the first aluminum welding fork (2), a limiting mechanism is provided between the first connecting shaft (5) and the first aluminum welding fork (2), the two ends of the first connecting shaft (5) are hollow, the limiting mechanism comprises a first limiting portion arranged in the first connecting shaft (5), the first limiting portion is symmetrically transmission-connected with a first limiting block (6), the first limiting block (6) is in contact with the first aluminum welding fork (2).

2. The transmission shaft assembly according to claim 1, characterized in that: The first limiting portion comprises a second connecting shaft (7) rotatably connected inside the first connecting shaft (5), one end of the second connecting shaft (7) extending to the outside of the first connecting shaft (5), one end of the second connecting shaft (7) located inside the first connecting shaft (5) is fixedly connected to a first bevel gear (8), the first limiting block (6) is internally threadedly connected to a lead screw (9), one end of the lead screw (9) close to the first bevel gear (8) is fixedly connected to a second bevel gear (10), and the second bevel gear (10) is meshed with the first bevel gear (8).

3. The transmission shaft assembly according to claim 2, characterized in that: First connecting plates (11) are slidably connected to both sides of the first limit block (6); the first connecting plate (11) is located inside the first connecting shaft (5) and is fixedly connected to the first connecting shaft (5); and a gap is provided between the first connecting plate (11) and the second connecting shaft (7).

4. The transmission shaft assembly according to claim 1, characterized in that: A buffer pad (12) is provided between the first aluminum welding fork (2) and the first connecting shaft (5), and the first limiting block (6) abuts against the buffer pad (12).

5. The transmission shaft assembly according to claim 1, characterized in that: The dustproof mechanism comprises a dustproof base (13) rotatably connected to the outside of the shaft (1); a dustproof top cover (14) is detachably connected to the top of the dustproof base (13); the dustproof top cover (14) is rotatably connected to the shaft (1); the dustproof base (13) is fixedly connected to the first flange fork (4); the dustproof top cover (14) is movably connected to the first flange fork (4); second limiting portions are respectively provided on both sides of the dustproof top cover (14); the second limiting portions are respectively adapted to the dustproof base (13).

6. The transmission shaft assembly according to claim 5, characterized in that: The second limiting portion comprises a first groove (15) arranged on the dustproof top cover (14), a second limiting block (16) is slidably connected in the first groove (15), a first sliding groove (17) is provided on the bottom surface of the first groove (15), the first sliding groove (17) is communicated with the bottom of the dustproof top cover (14), a first limiting plate (18) is fixedly connected to the bottom surface of the second limiting block (16), a second groove (19) is provided on the top surface of the dustproof base (13), the first limiting plate (18) extends into the second groove (19) and is adapted to the second groove (19), and a first spring (20) is provided between the first limiting plate (18) and the first sliding groove (17).

7. A car, characterized in that: Comprising the transmission shaft assembly according to any one of claims 1 to 6.

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