Eccentric adjustable driving shaft transmission structure of motor vehicle

Abstract

The utility model provides an eccentric adjustable driving shaft transmission structure of a motor vehicle, which comprises two eccentric seat hoops, the upper ends of the two eccentric seat hoops are fixedly connected with a fork-shaped frame, and the two eccentric seat hoops are both internally and fixedly connected with a step type adjustable eccentric seat and a hole type adjustable eccentric seat through bolts. By means of the design, the problems that due to the fact that a driving shaft transmission structure of an original device is arranged in the center of a driving main rod, a driving main shaft is stressed unevenly, and the main shaft is bent and fractured are solved, and the driving shaft transmission structure is reasonable in structure and good in practicability and is distributed on the left side and the right side of the driving main shaft. And then the stress ratio of the driving main shaft end is reduced through the adjustable eccentric seat and the hole type adjustable eccentric seat which are arranged in the two eccentric seat hoops on the left side and the right side of the driving shaft transmission structure in a matched mode through the fork-shaped frame, so that the stress load of the driving main shaft is enhanced, the movement performance and the product quality of the whole vehicle are improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to an eccentric adjustable drive shaft transmission structure for motor vehicles, belonging to the technical field of motor vehicle parts. Background Technology

[0002] In existing technology, the drive shaft of a motor vehicle completes transmission through a drive unit in the middle. This design places all the stress points on the drive shaft in the middle, making it prone to bending and breakage, which can easily lead to accidents during driving. At the same time, the drive belt is prone to loosening or falling off the gear plate during high-strength operation, affecting driving. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a motor vehicle eccentric adjustable drive shaft transmission structure to solve the problems mentioned in the background art. This utility model has good practicality. The limiting step on the surface of the drive spindle can accurately fit the two eccentric seat clamps into the stepped adjustable eccentric seat and the hole adjustable eccentric seat. The eccentric seat clamps are installed through the upper and lower shell structures so that users can quickly assemble the equipment.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a motor vehicle eccentric adjustable drive shaft transmission structure, including two eccentric seat clamps, with a fork-shaped frame fixedly connected to the upper end of the two eccentric seat clamps, and a stepped adjustable eccentric seat and a hole-type adjustable eccentric seat fixedly connected to the inside of the two eccentric seat clamps by bolts.

[0005] Both the stepped adjustable eccentric seat and the hole-type adjustable eccentric seat have multiple bearings fixedly connected inside their eccentric holes. The bearings are fitted with sealing rings, and the drive spindle is connected inside the bearings. The stepped adjustable eccentric seat and the hole-type adjustable eccentric seat are located on the left and right sides of the drive spindle and are locked or opened by two eccentric seat clamps. A gear plate body is located in the middle of the drive spindle. Two gear plate fastening bolts are fixedly connected between the drive spindle and the gear plate body and are fixed to the middle limit positioning plate of the drive spindle.

[0006] Flange bodies are fixedly connected to the left and right ends of the drive spindle. Spindle fastening nuts are fixedly connected to the left and right ends of the two flange bodies respectively. Oil inlet grooves are opened at both ends of the fork frame. Oil inlet plugs are fixedly connected to both ends of the fork frame by threads. Filter screens are fixedly connected inside the two oil inlet plugs.

[0007] Preferably, the circumferential surface of the drive spindle has a brake disc body, and two brake disc bolts are fixedly connected between the drive spindle and the brake disc body, and are fixed on the positioning plate of the drive spindle.

[0008] Preferably, the two eccentric seat clamps are designed with an openable upper and lower shell structure, and the eccentric seat clamps are provided with a stepped adjustable eccentric seat and a hole-type adjustable eccentric seat.

[0009] Preferably, a limit positioning disk is provided in the middle of the drive spindle.

[0010] Preferably, the inner walls of the left and right sides of the fork-shaped frame are fixedly connected with crossbeams.

[0011] Preferably, the two eccentric seat clamps are provided with oil grooves.

[0012] The beneficial effects of this utility model are as follows: This utility model provides an eccentric adjustable drive shaft transmission structure for motor vehicles. Because it incorporates eccentric seat clamps, adjustable eccentric seats with holes, adjustable eccentric seats with steps, sealing rings, and bearings, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. The drive shaft transmission structure is distributed on both sides of the drive shaft. Then, through the cooperation of the fork-type bracket with the adjustable eccentric seats and adjustable eccentric seats with holes located in the two eccentric seat clamps on the left and right sides of the drive shaft transmission structure, the force ratio at the drive shaft end is reduced, thereby enhancing the load on the drive shaft, improving the overall vehicle's motion performance and product quality, and thus extending its service life. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a first-view three-dimensional structural schematic diagram of the overall structure of the eccentric adjustable drive shaft transmission structure for motor vehicles according to this utility model.

[0015] Figure 2 This is a two-dimensional schematic diagram of the overall structure of the eccentric adjustable drive shaft transmission structure for motor vehicles according to the present invention.

[0016] Figure 3 This is a third-view three-dimensional structural schematic diagram of the overall structure of the eccentric adjustable drive shaft transmission structure for motor vehicles according to this utility model.

[0017] Figure 4 This is a three-dimensional schematic diagram of the overall structure of the eccentric adjustable drive shaft transmission structure for motor vehicles according to the present invention.

[0018] Figure 5 This is a three-dimensional schematic diagram of the overall structure of a motor vehicle eccentric adjustable drive shaft transmission structure according to the present invention, taken from five perspectives.

[0019] Figure 6 This is an exploded structural diagram of an eccentric adjustable drive shaft transmission structure for motor vehicles according to this utility model.

[0020] Figure 7 This is a structural schematic diagram of an eccentric adjustable drive shaft transmission structure for motor vehicles according to the present invention.

[0021] Figure 8 This is a schematic diagram of the eccentric adjustable drive shaft transmission structure for motor vehicles according to this utility model.

[0022] Figure 9 This is a cross-sectional schematic diagram of the fork-type frame in the eccentric adjustable drive shaft transmission structure of a motor vehicle according to this utility model.

[0023] Figure 10 This utility model relates to an eccentric adjustable drive shaft transmission structure for motor vehicles. Figure 9 A schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1-Drive spindle, 201-Stepped adjustable eccentric seat, 202-Hole adjustable eccentric seat, 3-Bearing, 4-Sealing ring, 5-Flange body, 6-Gear disc fastening bolt, 7-Brake disc body, 8-Brake disc bolt, 9-Gear disc body, 10-Spindle fastening nut, 11-Eccentric seat clamp, 12-Fork-type bracket, 13-Oil inlet plug, 14-Oil inlet groove, 15-Filter screen. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Please see Figures 1-10 This utility model provides a technical solution: a motor vehicle eccentric adjustable drive shaft transmission structure, including two eccentric seat clamps 11, with a fork-shaped frame 12 fixedly connected to the upper end of the two eccentric seat clamps 11, and a stepped adjustable eccentric seat 201 and a hole-type adjustable eccentric seat 202 fixedly connected to the two eccentric seat clamps 11 by bolts.

[0027] Multiple bearings 3 are fixedly connected inside the eccentric holes of both the stepped adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202. A sealing ring 4 is provided on the outer sleeve of the bearing 3. A drive spindle 1 is connected inside the bearing 3. The stepped adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202 are set on the left and right sides of the drive spindle 1 and are locked or opened by two eccentric seat clamps 11. A gear plate body 9 is set in the middle of the drive spindle 1. Two gear plate fastening bolts 6 are fixedly connected between the drive spindle 1 and the gear plate body 9 and are fixed to the middle limiting positioning plate of the drive spindle 1. The drive spindle 1 is driven to rotate through the middle gear plate body. The drive spindle 1 passes through the fork-shaped frame 12 fixed on the eccentric seat clamps 11 outside the adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202 to disperse the transmission force and effectively protect the drive spindle 1.

[0028] Flange bodies 5 are fixedly connected to both ends of the drive spindle 1. Spindle fastening nuts 10 are fixedly connected to both ends of the two flange bodies 5. Oil inlet grooves 14 are provided at both ends of the fork-shaped bracket 12. Oil inlet plugs 13 are threadedly fixed to both ends of the fork-shaped bracket 12. Filter screens 15 are fixedly connected inside both oil inlet plugs 13. Lubricating oil enters from the oil inlet plugs 13, passes through the oil inlet grooves 14, and then enters the adjustable eccentric seat 201 and the bore-type adjustable eccentric seat 202 within the eccentric seat clamp 11 to lubricate the bearings 3 and the drive shaft. This design solves the problem of the original device's drive shaft transmission structure, which required very precise setting of the positions of each adjustable component during initial installation and debugging to ensure optimal alignment. This was not only time-consuming but also required skilled and experienced technicians.

[0029] The circumferential surface of the drive spindle 1 has a brake disc body 7, and two brake disc bolts 8 are fixedly connected between the drive spindle 1 and the brake disc body 7, and are fixed on the positioning plate of the drive spindle 1.

[0030] The two eccentric seat clamps 11 are designed with an openable upper and lower outer shell structure and are fixed by positioning screws. By opening the fixing screws, the adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202 can be adjusted, thereby affecting the front-to-back distance between the drive spindle 1 and the vehicle body. The eccentric seat clamps 11 are equipped with stepped adjustable eccentric seat 201 and hole-type adjustable eccentric seat 202.

[0031] A limit positioning plate is set in the middle of the drive spindle 1 to fix the gear plate body. The rotation of the spindle drives the gear plate body to rotate, the gear plate body drives the transmission belt, and the transmission belt drives the internal drive wheel of the motor vehicle to rotate, so that the pneumatic motor vehicle moves forward or backward.

[0032] The inner walls on both sides of the fork-shaped frame 12 are fixedly connected with crossbeams, which provide greater stability and balance.

[0033] The two eccentric seat clamps 11 are equipped with oil grooves, which can be used to lubricate the bearings in the adjustable eccentric wheel to ensure smooth operation between the bearings in the adjustable eccentric wheel and the drive spindle.

[0034] The drive spindle 1 can rotate within the stepped adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202 on both the left and right sides. The eccentric design of the stepped adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202 on both the left and right sides allows for adjustment of the height of the drive spindle 1, thereby adjusting the height of the central gear plate of the drive spindle 1. This allows for adjustment of the distance between the drive disc in the vehicle body and the central gear plate of the drive spindle 1, and then adjustment of the tension of the conveyor belt.

[0035] In this specific embodiment, the gear disc body 9 and brake disc body 7 are first fitted onto the surface of the drive spindle 1, and then fixed onto the drive spindle 1 using the gear disc fastening bolts 6 and brake disc bolts 8. Next, the bearing 3 and the stepped adjustable eccentric seat 201 are fitted onto both ends of the drive spindle 1. The flange body 5 blocks the stepped adjustable eccentric seat 201, and then the flange body 5 is fitted onto the drive spindle and fixed using the spindle fastening nut 10. The upper and lower ends of the eccentric seat clamp 11 wrap around the stepped adjustable eccentric seat 201 and the hole-type adjustable eccentric seat 202, and allow passage. The drive spindle 1 is fixed by bolts, allowing it to rotate within the eccentric seat clamp 11. After assembling the drive shaft, lubricating oil can be introduced into the oil inlet plug 13, filtered through the filter screen 15, and then flow into the eccentric seat clamp 11 to lubricate the bearing 3. When using the equipment, the two flange bodies 5 need to be fixedly installed on the vehicle frame first, and then the brake disc body 7 is connected to the external equipment respectively, showing the position of the drive spindle 1 and the gear disc body 9, so as to realize the tension of the power transmission chain on the drive spindle 1 and the gear disc body 9.

[0036] This specific implementation method has a reasonable structure and good practicality. The drive shaft transmission structure is distributed on the left and right sides of the drive main shaft. Then, through the cooperation of the fork-type bracket with the adjustable eccentric seats and the hole-type adjustable eccentric seats set in the two eccentric seat clamps on the left and right sides of the drive shaft transmission structure, the force ratio at the end of the drive main shaft is reduced, thereby enhancing the load on the drive main shaft, improving the overall vehicle's motion performance and product quality, and thus extending its service life.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A motor vehicle eccentrically adjustable drive shaft transmission structure comprising two eccentric seat clamps (11), characterized in that: The upper end of the two eccentric seat clamps (11) is fixedly connected with a fork frame (12), and the two eccentric seat clamps (11) are fixedly connected with a stepped adjustable eccentric seat (201) and a hole type adjustable eccentric seat (202) through bolts. The stepped adjustable eccentric seat (201) and the hole type adjustable eccentric seat (202) are fixedly connected with a plurality of bearings (3) in the eccentric holes, the bearings (3) are provided with a sealing ring (4) on the outside, and the bearings (3) are connected with a driving main shaft (1) in the inside, the stepped adjustable eccentric seat (201) and the hole type adjustable eccentric seat (202) are arranged on the left and right sides of the driving main shaft (1), the middle of the driving main shaft (1) is provided with a toothed disc body (9), two toothed disc fastening bolts (6) are fixedly connected between the driving main shaft (1) and the toothed disc body (9), and the middle of the driving main shaft (1) is fixed with a limiting positioning disc. The left and right ends of the driving main shaft (1) are fixedly connected with flange disc bodies (5), the left and right ends of the two flange disc bodies (5) are respectively fixedly connected with main shaft fastening nuts (10), the left and right ends of the fork frame (12) are provided with oil inlet grooves (14), and the left and right ends of the fork frame (12) are fixedly connected with oil inlet plug pipes (13) through threads, and the two oil inlet plug pipes (13) are fixedly connected with filter screens (15) in the inside.

2. The eccentrically adjustable drive axle drive train of claim 1, wherein: The circumferential surface of the driving main shaft (1) is provided with a brake disc body (7), and the driving main shaft (1) and the brake disc body (7) are fixedly connected with two brake disc bolts (8), and the brake disc bolts (8) are fixed on the positioning disc of the driving main shaft (1).

3. The eccentrically adjustable drive axle drive train of claim 1, wherein: The two eccentric seat clamps (11) are designed as an openable structure with upper and lower shells, and the eccentric seat clamps (11) are provided with the stepped adjustable eccentric seat (201) and the hole type adjustable eccentric seat (202).

4. The eccentrically adjustable drive axle drive train of claim 1, wherein: The middle of the driving main shaft (1) is provided with a limiting positioning disc.

5. The eccentrically adjustable drive axle drive train of claim 1, wherein: The left and right inner walls of the fork frame (12) are fixedly connected with cross beams.

6. The eccentrically adjustable drive axle drive train of claim 1, wherein: The two eccentric seat clamps (11) are provided with oil grooves in the inside.

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