Automotive drive shaft with anti-bending structure
By setting a support mechanism on the outer surface of the drive shaft, including components such as sliding rings and rotating rings, an upward pulling force is provided to prevent bending, thus solving the bending problem caused by the drive shaft's own weight and ensuring the normal transmission and flexibility of the drive shaft.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN XINRUIHE MACHINERY MANUFACTURING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
The existing drive shaft has a simple structure and is prone to bending under its own weight, which affects the normal operation of the vehicle.
Design an automotive driveshaft with a support mechanism, including a support structure composed of a sliding ring, a rotating ring, an extension shaft, and a tension spring, which is mounted on the outer surface of the drive shaft to provide upward tension to prevent bending and allow the driveshaft to remain unaffected by rotation and angle changes.
It effectively prevents the drive shaft from bending due to its own weight, ensuring the normal transmission capacity and flexibility of the drive shaft, and improving the practicality and aesthetics of the device.
Smart Images
Figure CN224497083U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transmission shaft structure technology, specifically to an automotive transmission shaft with a bending-resistant structure. Background Technology
[0002] The driveshaft is an important component in the automotive transmission system that transmits power. The driveshaft, together with the gearbox and differential, works to transmit the torque output by the engine to the wheels, driving the vehicle.
[0003] A driveshaft is used to connect two shafts that are not on the same straight line. It is usually used in conjunction with a universal joint to accommodate changes in angle. For example, in independent and non-independent suspensions, the shaft connecting the transmission output shaft and the final drive input shaft is generally called the main driveshaft; in independent suspensions, the shaft connecting the differential output shaft and the drive wheels is generally called the half-shaft.
[0004] Drive shafts are installed in rear-wheel drive and four-wheel drive vehicles, especially four-wheel drive vehicles. The drive shaft is generally installed under the chassis along the length of the vehicle. Most drive shafts currently have relatively simple structures. In actual use, the drive shaft itself may bend under its own weight, which may affect the normal driving of the vehicle. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an automotive driveshaft with an anti-bending structure, which solves the problem that most current driveshaft structures are relatively simple, and in actual use, the driveshaft itself may bend under its own weight, thus affecting the normal driving of the vehicle.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an automobile drive shaft with a bending-resistant structure, comprising a hollow drive shaft and a support mechanism;
[0007] The support mechanism is disposed on the outer surface of the transmission main shaft;
[0008] The support mechanism includes a sliding ring slidably connected to the outer surface of the transmission main shaft along its length. A rotating ring is rotatably connected to the outer surface of the sliding ring. Extension shafts are laterally fixed to both sides of the rotating ring. Arched connecting seats are rotatably connected to the outer surfaces of the two extension shafts. Extension blocks are laterally fixed to both sides of the connecting seats. Vertical rods are vertically fixed to the upper surfaces of the two extension blocks. Sliding tubes are vertically slidably connected to the outer surfaces of the two vertical rods. A tension spring is vertically fixed between the bottom end of the sliding tube and the upper surface of the extension block.
[0009] Furthermore, the top ends of the two sliding tubes are horizontally fixedly connected with connecting pieces, and the outer edge of the upper surface of the connecting pieces is vertically perforated with multiple mounting holes.
[0010] Furthermore, the bottom ends of the plurality of mounting holes are all expanded outward to form a recessed groove.
[0011] Furthermore, the inner surface of the transmission spindle is fixedly connected with multiple reinforcing ribs along its length.
[0012] Furthermore, universal joints are fixedly connected to both ends of the transmission spindle.
[0013] Furthermore, the central axes of the transmission main shaft, the rotating ring, and the sliding ring are located on the same straight line.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the automobile drive shaft with anti-bending structure, by setting a support mechanism, can be installed on the chassis of the automobile. The support mechanism provides certain support to the drive shaft of the device, preventing it from bending due to its own weight. At the same time, since the support mechanism of the device is equipped with multiple movable joints, it will not affect the extension and contraction and angle change of the drive shaft, thus improving the practicality of the device. Attached Figure Description
[0015] Fig. 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Fig. 2 This is a cross-sectional structural diagram of the transmission spindle in this utility model;
[0017] Fig. 3 This is a schematic diagram of the support mechanism in this utility model.
[0018] In the diagram: 1-drive spindle, 2-universal joint, 3-support mechanism, 31-sliding ring, 32-rotating ring, 33-extension shaft, 34-connecting seat, 35-extension block, 36-upright pole, 37-sliding tube, 38-connecting piece, 39-tension spring, 4-reinforcing rib, 5-mounting hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figs. 1-3 This utility model provides a technical solution: an automobile drive shaft with an anti-bending structure, including a hollow drive shaft 1 and a support mechanism 3;
[0021] Support mechanism 3 is disposed on the outer surface of transmission spindle 1;
[0022] The support mechanism 3 includes a sliding ring 31 that is slidably connected to the outer surface of the transmission main shaft 1 along its length direction. A rotating ring 32 is rotatably connected to the outer surface of the sliding ring 31. An extension shaft 33 is laterally fixedly connected to both sides of the rotating ring 32. An arched connecting seat 34 is rotatably connected to the outer surface of the two extension shafts 33. An extension block 35 is laterally fixedly connected to both sides of the connecting seat 34. A vertical rod 36 is vertically fixedly connected to the upper surface of the two extension blocks 35. A sliding tube 37 is vertically slidably connected to the outer surface of the two vertical rods 36. A tension spring 39 is vertically fixedly connected between the bottom end of the sliding tube 37 and the upper surface of the extension block 35.
[0023] The central axes of the transmission main shaft 1, the rotating ring 32, and the sliding ring 31 are located on the same straight line.
[0024] The top ends of the two sliding tubes 37 are horizontally fixedly connected to connecting pieces 38, and multiple mounting holes 5 are vertically opened through the outer edge of the upper surface of the connecting pieces 38.
[0025] The support mechanism 3 in this device can be installed on the vehicle chassis. After installation, the transmission main shaft 1 can be supported by the tension spring 39, sliding tube 37 and upright rod 36. This structure always provides an upward pulling force to the transmission main shaft 1 to prevent the transmission main shaft from bending and deforming due to its own weight. At the same time, the support mechanism 3 is equipped with a sliding ring 31, a rotating ring 32 and a connecting seat 34, so that the transmission main shaft 1 will not be affected when rotating and changing angle, thus ensuring its normal transmission capacity.
[0026] The bottom ends of multiple mounting holes 5 are all expanded outward to form a recessed groove.
[0027] During installation, the device can be installed and fixed to the car chassis by screwing the screw through multiple mounting holes 5. The groove can prevent the screw nut from being exposed, thus improving the aesthetics.
[0028] Multiple reinforcing ribs 4 are fixedly connected to the inner surface of the transmission spindle 1 along its length.
[0029] Multiple reinforcing ribs 4 are arranged along the length of the transmission shaft 1, which can play a certain structural strengthening effect, making the transmission shaft 1 more difficult to bend.
[0030] Universal joints 2 are fixedly connected to both ends of the transmission spindle 1.
[0031] A splined shaft is also provided between the universal joint 2 at the front end and the main drive shaft 1. These are existing technical structures for drive shafts and will not be described in detail here.
[0032] During operation, the support mechanism 3 in this device can be installed on the vehicle chassis. After installation, the transmission main shaft 1 can be supported by the tension spring 39, sliding tube 37 and upright rod 36. This structure always provides an upward pulling force to the transmission main shaft 1 to prevent the transmission main shaft from bending and deforming due to its own weight. At the same time, the support mechanism 3 is equipped with a sliding ring 31, a rotating ring 32 and a connecting seat 34, so that the transmission main shaft 1 will not be affected when rotating and changing angle, thus ensuring its normal transmission capacity.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automotive driveshaft with a bending-resistant structure, characterized in that: It includes a hollow drive shaft (1) and a support mechanism (3); The support mechanism (3) is disposed on the outer surface of the transmission spindle (1); The support mechanism (3) includes a sliding ring (31) slidably connected to the outer surface of the transmission main shaft (1) along its length direction. A rotating ring (32) is rotatably connected to the outer surface of the sliding ring (31). An extension shaft (33) is horizontally fixedly connected to both sides of the rotating ring (32). An arched connecting seat (34) is rotatably connected to the outer surface of the two extension shafts (33). An extension block (35) is horizontally fixedly connected to both sides of the connecting seat (34). A vertical pole (36) is vertically fixedly connected to the upper surface of the two extension blocks (35). A sliding tube (37) is vertically slidably connected to the outer surface of the two poles (36). A tension spring (39) is vertically fixedly connected between the bottom end of the sliding tube (37) and the upper surface of the extension block (35).
2. The automotive drive shaft with an anti-bending structure according to claim 1, characterized in that: The top ends of the two sliding tubes (37) are horizontally fixedly connected with connecting pieces (38), and the outer edge of the upper surface of the connecting pieces (38) is vertically opened with multiple mounting holes (5).
3. The automotive drive shaft with an anti-bending structure according to claim 2, characterized in that: The bottom ends of the multiple mounting holes (5) are all expanded outward to form a recessed groove.
4. The automotive drive shaft with an anti-bending structure according to claim 1, characterized in that: The inner surface of the transmission spindle (1) is fixedly connected with multiple reinforcing ribs (4) along its length.
5. The automotive drive shaft with an anti-bending structure according to claim 1, characterized in that: Universal joints (2) are fixedly connected to both ends of the transmission spindle (1).
6. The automotive driveshaft with an anti-bending structure according to claim 1, characterized in that: The central axes of the transmission main shaft (1), the rotating ring (32), and the sliding ring (31) are located on the same straight line.