Transmission shaft of Balham car

Abstract

The utility model discloses a transmission shaft of a Balham vehicle in the technical field of transmission shafts. The transmission shaft comprises a shaft body and two couplings. Clamping groove blocks are fixedly connected to the two ends of the shaft body, tenon blocks are fixedly connected to the two couplings, the two couplings are connected to the clamping groove blocks at the two ends of the shaft body through tenon block clamping grooves, and the clamping groove blocks and the tenon blocks are fixed through bolts; connecting grooves are formed in the ends, away from the shaft body, of the two couplings, and the connecting grooves in the two couplings are used for being connected with the output end of a transfer case and a differential mechanism correspondingly. According to the scheme, the problems that an existing transmission shaft of the barham is difficult to operate and long in consumed time during installation are solved.

Description

Technical Field

[0001] This utility model relates to the field of drive shaft technology, specifically to a Baja car drive shaft. Background Technology

[0002] The Baja SAE China (BSC) is a competition for off-road vehicle design, manufacturing, and testing, participated in by teams of students majoring in automotive and related fields from universities and vocational colleges. The race cars used in the competition are also known as "Baja cars." The driveshaft of a Baja car is the component connecting the transfer case output (usually a transmission or transfer case) to the drive axle, responsible for transmitting torque and rotational motion. For Baja cars, due to the frequent exposure to complex terrain conditions, including rocks, mud, and sand dunes, the requirements for the driveshaft are extremely high. Currently, Baja car driveshafts... This type of drive shaft mainly consists of a shaft and universal joints installed at both ends of the shaft. There are several drawbacks: First, the universal joints are relatively large, and given the limited space under the Baja vehicle, installation is difficult and time-consuming. Second, the universal joints require regular maintenance and lubrication, increasing the workload. Third, in muddy and sandy environments, mud and sand easily adhere to the universal joints, affecting their performance. Fourth, the drive shaft with universal joints is relatively heavy, increasing the overall weight of the Baja vehicle and affecting its speed. Utility Model Content

[0003] The present invention aims to provide a Baja car driveshaft to solve the problems of difficult operation and long time consumption during the installation of current Baja car driveshafts.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a Baja car drive shaft, comprising a shaft body and two couplings;

[0005] Both ends of the shaft are fixedly connected to a slot block, and two couplings are fixedly connected to a tenon block. The two couplings are connected to the slot blocks at both ends of the shaft through the tenon block slots, and the slot blocks and tenon blocks are fixed by bolts.

[0006] Both couplings have a connecting groove at the end furthest from the shaft, and the connecting grooves on the two couplings are respectively used to connect to the output end of the transfer case and the differential.

[0007] Furthermore, after the slotted block and the tenon block are connected in the slotted groove, they form a cylindrical shape, and the diameter of the formed cylindrical shape is 0.5 to 4.0 cm larger than the diameter of the shaft.

[0008] Furthermore, each of the slot blocks is provided with two bolt holes I with opposite thread directions, and each of the tenon blocks is provided with two bolt holes II that cooperate with the bolt holes I.

[0009] Furthermore, one of the bolt holes on the slot block has a recessed groove for accommodating the bolt head.

[0010] Furthermore, one of the bolt holes on the latch block has a countersunk groove for accommodating the bolt head. The bolt hole with the countersunk groove is used in conjunction with the bolt hole without the countersunk groove.

[0011] Furthermore, the connecting groove is a connecting groove configured with a spline.

[0012] The working principle of this utility model is as follows: During installation, first, the two couplings are connected to the output end of the transfer case and the differential through the connecting grooves set by the spline. Then, the retaining blocks at both ends of the shaft are connected to the retaining blocks of the two couplings. Two bolts are inserted into the bolt hole with the first countersunk groove and the bolt hole with the second countersunk groove, respectively, and the bolts are tightened to fix the retaining blocks and retaining blocks.

[0013] The beneficial effects of this utility model are:

[0014] 1. This solution utilizes a slotted block and a locking block design, making the installation of the drive shaft simpler and faster. Compared to traditional universal couplings, it eliminates the need for complex alignment and adjustment, reducing installation time and difficulty.

[0015] 2. This solution eliminates the traditional universal coupling design, thus avoiding the performance degradation of the drive shaft caused by mud and sand accumulation, and eliminating the need for regular lubrication, thereby greatly reducing maintenance frequency and workload.

[0016] 3. This design eliminates the bulky and heavy universal joint, which greatly reduces the mass of the drive shaft and thus lowers the overall mass of the Baja vehicle, thereby improving the vehicle's speed and fuel efficiency.

[0017] 4. In this design, the cylindrical diameter formed by the slotted block and the tenon block after being connected is slightly larger than the diameter of the shaft. This ensures the connection strength while maintaining the compactness of the overall structure, making it suitable for the limited space under the Baja vehicle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a Baja car drive shaft according to the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the central shaft and the slot block;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the middle card tenon block. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] The reference numerals in the accompanying drawings include: 1. Slot block; 2. Tenon block; 3. Bolt hole 2; 4. Bolt; 5. Countersunk groove; 6. Shaft; 7. Connecting groove; 8. Bolt hole 1.

[0023] The basic implementation examples are as follows: Figure 1 Appendix Figure 2 and attached Figure 3 As shown:

[0024] A Baja car drive shaft includes a shaft body 6 and two couplings.

[0025] Both ends of the shaft 6 are fixedly connected with slot blocks 1, and two couplings are fixedly connected with tenon blocks 2. The two couplings are connected to the slot blocks 1 at both ends of the shaft 6 through the slots of the tenon blocks 2. The slot blocks 1 and the tenon blocks 2 are fixed by bolts 4. After the slot blocks 1 and the tenon blocks 2 are connected, they form a cylinder, and the diameter of the cylinder is 0.5 to 4.0 cm larger than the diameter of the shaft 6.

[0026] Each slot block 1 has two bolt holes 8 with opposite thread directions, and each tenon block 2 has two bolt holes 3 that mate with the bolt holes 8. One of the bolt holes 8 on the slot block 1 has a countersunk groove 5 for accommodating the bolt head 4, and one of the bolt holes 3 on the tenon block 2 has a countersunk groove 5 for accommodating the bolt head 4. The bolt hole 3 with the countersunk groove 5 is used in conjunction with the bolt hole 8 without the countersunk groove 5.

[0027] Both couplings have a splined connecting groove 7 at the end away from the shaft 6. The connecting groove 7 on the two couplings is used to connect with the output end of the transfer case and the spline of the differential, respectively.

[0028] The specific implementation process is as follows:

[0029] During installation, first connect the two couplings to the output end of the transfer case and the differential through the connecting groove 7 set by the spline. Then, connect the retaining blocks 1 at both ends of the shaft 6 to the retaining blocks 2 of the two couplings. Insert two bolts 4 into the bolt hole 8 with the countersunk groove 5 and the bolt hole 3 with the countersunk groove 5, respectively, and tighten the bolts 4 to fix the retaining blocks 1 and retaining blocks 2.

Claims

1. A Bahai propeller shaft characterized by: The shaft body and two shaft couplings; The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; 2. A propeller shaft for a buggy according to claim 1, wherein: The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; 3. A propeller shaft for a buggy according to claim 2, wherein: The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; 4. A propeller shaft for a buggy according to claim 3, wherein: The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; 5. A propeller shaft for a buggy according to claim 4, wherein: The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; 6. A propeller shaft for a buggy according to claim 5, wherein: The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixedly connected with tenons, the two shaft couplings are connected with the clamping groove blocks at the two ends of the shaft body through the tenons, and the clamping groove blocks and the tenons are fixed through bolts; The two ends of the shaft body are fixedly connected with clamping groove blocks, and the two shaft couplings are fixed

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