A four-wheeled vehicle transmission mechanism
By using gear meshing transmission components in four-wheeled vehicles, the problem of slippage in high torque scenarios of belt transmission is solved, achieving high torque supply and stable drive, and meeting special usage requirements.
Patent Information
- Application Number
- CN202522331282.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-03
AI Technical Summary
Existing belt drive systems are prone to slippage when faced with high torque requirements and cannot provide sufficient torque, making it inconvenient for four-wheeled vehicles to use in special scenarios.
The transmission components using gear meshing replace the transmission belt drive, including a gearbox, main drive shaft, transmission gear ring, and driven gear, etc., to realize the differentiation of engine output into first and second output ends, which drive the working module and wheels respectively, providing a high torque supply.
The gear-driven transmission system provides a high torque supply, meeting the needs of special usage scenarios, preventing slippage, and improving the ease of use of the four-wheeled vehicle.
Smart Images

Figure CN224940947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of four-wheeled vehicle technology, and in particular to a four-wheeled vehicle transmission mechanism. Background Technology
[0002] Four-wheeled vehicles are land transportation vehicles that use four wheels to support the vehicle body and transmit power to achieve movement. Their core feature is that they carry loads and drive by contacting the ground with the four wheels. Based on the drive method, they can be divided into two-wheel drive and four-wheel drive categories. They are widely used in daily commuting, cargo transportation, engineering operations and other scenarios, and are a core component of the modern transportation system.
[0003] Agricultural four-wheeled vehicles are usually equipped with a working module at the front of the vehicle body, and a transmission path is also reserved inside the vehicle body to drive the working module to work normally. The core function of the existing transmission mechanism is to transmit the power source to the drive wheel and adapt to the driving needs by adjusting the speed and torque.
[0004] The current transmission method between the automotive power source and the transmission mechanism usually uses a drive belt. However, the drive belt is very prone to slipping when facing high torque demand scenarios. In addition, the torque that the drive belt can provide is limited, and it cannot guarantee that it can provide enough torque for the vehicle to cope with some special usage scenarios, making it inconvenient to use. Utility Model Content
[0005] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a four-wheeled vehicle transmission mechanism.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a four-wheeled vehicle transmission mechanism, comprising: The vehicle body, the interior of which is equipped with a transmission box; A transmission assembly is disposed inside the vehicle body. The transmission assembly includes a gearbox fixedly installed inside the vehicle body. A main drive shaft is movably installed inside the gearbox. A first transmission gear ring is installed on the outer surface of the main drive shaft. A first-stage transmission gear is meshed with the outer surface of the first transmission gear ring. A first rotating shaft is installed inside the first-stage transmission gear. A second-stage transmission gear is installed on the outer surface of the first rotating shaft. A first driven gear is meshed with the outer surface of the second-stage transmission gear. A first output shaft is installed inside the gearbox. One end of the first output shaft is keyed to the first driven gear. A second transmission gear ring is mounted on the outer surface of the main drive shaft. A second rotating shaft is movably mounted inside the gearbox. A second transmission gear is mounted on the outer surface of the second rotating shaft. The second transmission gear meshes with the second transmission gear ring. A second driven gear meshes with the side of the second transmission gear away from the second transmission gear ring. A rotating cylinder is mounted inside the second driven gear.
[0007] In a preferred embodiment of the four-wheeled vehicle transmission mechanism described in this utility model, an engine is installed inside the vehicle body, the output end of the engine is connected to the main drive shaft, and an oil tank is installed inside the vehicle body.
[0008] In a preferred embodiment of the four-wheeled vehicle transmission mechanism described in this utility model, a working module is installed at the front of the vehicle body, and the end of the first output shaft away from the gearbox is connected to the working module for transmission.
[0009] In a preferred embodiment of the four-wheeled vehicle transmission mechanism described in this utility model, a hydraulic pump is installed on the outer surface of the gearbox, and the input end of the hydraulic pump is inserted into the interior of the gearbox and connected to the rotating cylinder.
[0010] In a preferred embodiment of the four-wheeled vehicle transmission mechanism described in this utility model, a hydraulic motor is installed at the input end of the transmission box, the hydraulic motor is connected to a hydraulic pump, a front axle component is installed inside the vehicle body, a rear axle component is installed inside the vehicle body, and both the front axle component and the rear axle component are connected to the transmission box.
[0011] In a preferred embodiment of the four-wheeled vehicle transmission mechanism described in this utility model, a rotating rod module is provided inside the vehicle body, and the first output shaft is connected to the rotating rod module in a transmission manner.
[0012] (III) Beneficial Effects This utility model provides a four-wheeled vehicle transmission mechanism. It has the following beneficial effects: 1. By setting up the transmission component, the engine output is divided into a first output end and a second output end, thereby realizing the transmission to the working module and the wheels. Furthermore, through the setting of the internal structure of the transmission component, the traditional transmission belt transmission is replaced by gear meshing, which can provide a higher torque supply, meet special application scenarios, and prevent slippage, making it easy to use. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the internal structure of the vehicle body of this utility model.
[0016] Figure 3 This is a schematic diagram of the transmission component of this utility model.
[0017] Figure 4 This is an exploded structural diagram of the transmission component of this utility model.
[0018] Figure 5 This is a schematic diagram of the transmission path structure of the first output end of this utility model.
[0019] Figure 6 This is a schematic diagram of the transmission path structure of the second output end of this utility model.
[0020] Figure 7 This is a schematic diagram of the structure of the hydraulic pump inside the vehicle body of this utility model.
[0021] In the diagram, 1. Vehicle body; 2. Engine; 3. Fuel tank; 4. Transmission box; 5. Transmission assembly; 501. Gearbox; 502. First output shaft; 503. Hydraulic pump; 504. Main drive shaft; 505. Rotary rod module; 506. First rotating shaft; 507. Primary transmission gear; 508. Secondary transmission gear; 509. First driven gear; 510. First transmission gear ring; 511. Second transmission gear ring; 512. Second rotating shaft; 513. Second transmission gear; 514. Rotating cylinder; 515. Second driven gear. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] Example 1 Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This is the first embodiment of the present invention, which provides a four-wheeled vehicle transmission mechanism, including: Vehicle body 1, with a transmission box 4 installed inside the vehicle body 1; The transmission assembly 5 is disposed inside the vehicle body 1. The transmission assembly 5 includes a gearbox 501 fixedly installed inside the vehicle body 1. A main drive shaft 504 is movably installed inside the gearbox 501. A first drive gear ring 510 is installed on the outer surface of the main drive shaft 504. A first-stage drive gear 507 is meshed on the outer surface of the first drive gear ring 510. A first rotating shaft 506 is installed inside the first-stage drive gear 507. A second-stage drive gear 508 is installed on the outer surface of the first rotating shaft 506. A first driven gear 509 is meshed on the outer surface of the second-stage drive gear 508. A first output shaft 502 is installed inside the gearbox 501. One end of the first output shaft 502 is keyed to the first driven gear 509. The end of the first output shaft 502 away from the first driven gear 509 passes through the outer surface of the gearbox 501. An electronic clutch for controlling the first output shaft 502 is installed on the outer surface of the gearbox 501. A second transmission gear ring 511 is mounted on the outer surface of the main drive shaft 504. A second rotating shaft 512 is movably mounted inside the gearbox 501. A second transmission gear 513 is mounted on the outer surface of the second rotating shaft 512. The second transmission gear 513 meshes with the second transmission gear ring 511. A second driven gear 515 meshes with the side of the second transmission gear 513 away from the second transmission gear ring 511. A rotating cylinder 514 is installed inside the second driven gear 515. Both ends of the main drive shaft 504, the first rotating shaft 506, and the second rotating shaft 512 are movably connected to the inner wall of the gearbox 501 through bearings.
[0024] like Figure 1 as well as Figure 2 In this embodiment, an engine 2 is installed inside the vehicle body 1, and the output end of the engine 2 is connected to the main drive shaft 504. An oil tank 3 is installed inside the vehicle body 1.
[0025] like Figure 4 as well as Figure 5 In this embodiment, a working module is installed at the front of the vehicle body 1, and the end of the first output shaft 502 away from the gearbox 501 is connected to the working module for transmission.
[0026] like Figure 1 , Figure 2 , Figure 3 as well as Figure 7In this embodiment, a hydraulic pump 503 is installed on the outer surface of the gearbox 501. The input end of the hydraulic pump 503 is inserted into the interior of the gearbox 501 and connected to the rotating cylinder 514. A keyway is provided on the inner wall of the rotating cylinder 514. A flat key that matches the keyway is provided on the input end of the hydraulic pump 503. A circular hole that matches the first output shaft 502 and the hydraulic pump 503 is provided on the outer surface of the gearbox 501. The output end of the hydraulic pump 503 passes through the circular hole and is connected to the rotating cylinder 514, thereby realizing transmission.
[0027] like Figure 2 , Figure 4 as well as Figure 5 In this embodiment, a hydraulic motor is installed at the input end of the transmission box 4. The hydraulic motor is connected to the hydraulic pump 503. A front axle component is installed inside the vehicle body 1, and a rear axle component is installed inside the vehicle body 1. Both the front axle component and the rear axle component are connected to the transmission box 4.
[0028] like Figure 4 In this embodiment, a rotating rod module 505 is provided inside the vehicle body 1. The first output shaft 502 is connected to the rotating rod module 505 in a transmission connection. The rotating rod module 505 includes a plurality of transmission rods connected end to end by universal joints. The transmission rods are installed inside the vehicle body 1 through bearing seats. The first output shaft 502 drives the working module to operate through an electronic clutch and the rotating rod module 505.
[0029] Furthermore, by setting up the transmission component 5, the output of the engine 2 is divided into a first output end and a second output end, thereby realizing the transmission of the working module and the wheels. Moreover, by setting up the internal structure of the transmission component 5, the traditional transmission belt transmission is replaced by gear meshing, which can provide a higher torque supply, meet special application scenarios, and prevent slippage, making it easy to use. The connection relationship, working principle and operation sequence between the electronic clutch, the rotating rod module, the working module, the transmission box 4, the hydraulic pump 503 and other components are existing technologies and are common knowledge known to those skilled in the art, and will not be elaborated on here.
[0030] Working principle: When using the four-wheeled vehicle, the engine 2 is started, and the fuel stored in the fuel tank 3 provides kinetic energy to the engine 2. The output end of the engine 2 drives the main drive shaft 504 to rotate. The main drive shaft 504 drives the first transmission gear ring 510 and the second transmission gear ring 511 on its outer surface to rotate. The first transmission gear ring 510 drives the first rotating shaft 506 to rotate through the first-stage transmission gear 507. The first rotating shaft 506 drives the second-stage transmission gear 508 to rotate, which in turn drives the first driven gear 509 to rotate. The first driven gear 509 drives the first output shaft 502 inserted into the gearbox 501 to rotate, thus realizing the first output end. Through the rotation of the first output shaft 502, the rotating rod module is driven to rotate, thereby driving the working module at the front of the vehicle body 1 to operate. The second transmission gear ring 510 on the outer surface of the main drive shaft 504... 11 drives the second transmission gear 513 to rotate, the second transmission gear 513 drives the second driven gear 515 to rotate, and thus the second driven gear 515 drives the rotating cylinder 514 to rotate, thereby realizing the second output end. By driving the hydraulic pump 503 to operate, the hydraulic motor is driven to operate. The hydraulic motor drives the internal structure of the transmission box 4 to operate, thereby driving the front axle and the rear axle to operate, thus realizing four-wheel drive. Through the setting of the transmission component 5, the output of the engine 2 is divided into the first output end and the second output end, thereby realizing the transmission of the working module and the wheels. Furthermore, through the setting of the internal structure of the transmission component 5, the traditional transmission belt transmission is replaced by gear meshing, which can provide a higher torque supply, meet special use scenarios, and will not slip, making it easy to use, ultimately completing the use of the four-wheel vehicle.
[0031] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
Claims
1. A four-wheeled vehicle transmission mechanism, characterized in that, include: The vehicle body (1) has a transmission box (4) inside. A transmission assembly (5) is disposed inside the vehicle body (1). The transmission assembly (5) includes a gearbox (501) fixedly installed inside the vehicle body (1). A main drive shaft (504) is movably installed inside the gearbox (501). A first transmission gear ring (510) is installed on the outer surface of the main drive shaft (504). A first-stage transmission gear (507) is meshed on the outer surface of the first transmission gear ring (510). A first rotating shaft (506) is installed inside the first-stage transmission gear (507). A second-stage transmission gear (508) is installed on the outer surface of the first rotating shaft (506). A first driven gear (509) is meshed on the outer surface of the second-stage transmission gear (508). A first output shaft (502) is installed inside the gearbox (501). One end of the first output shaft (502) is keyed to the first driven gear (509). The outer surface of the main drive shaft (504) is equipped with a second drive gear ring (511), and the gearbox (501) is movably installed with a second rotating shaft (512). The outer surface of the second rotating shaft (512) is equipped with a second drive gear (513), which meshes with the second drive gear ring (511). The side of the second drive gear (513) away from the second drive gear ring (511) is meshed with a second driven gear (515), and a rotating cylinder (514) is installed inside the second driven gear (515).
2. The four-wheeled vehicle transmission mechanism according to claim 1, characterized in that: An engine (2) is installed inside the vehicle body (1), and the output end of the engine (2) is connected to the main drive shaft (504). An oil tank (3) is installed inside the vehicle body (1).
3. A four-wheeled vehicle transmission mechanism according to claim 2, characterized in that: A working module is installed at the front of the vehicle body (1), and the end of the first output shaft (502) away from the gearbox (501) is connected to the working module for transmission.
4. A four-wheeled vehicle transmission mechanism according to claim 3, characterized in that: A hydraulic pump (503) is installed on the outer surface of the gearbox (501), and the input end of the hydraulic pump (503) is inserted into the interior of the gearbox (501) and connected to the rotating cylinder (514).
5. A four-wheeled vehicle transmission mechanism according to claim 4, characterized in that: A hydraulic motor is installed at the input end of the transmission box (4), and the hydraulic motor is connected to the hydraulic pump (503). A front axle component is installed inside the vehicle body (1), and a rear axle component is installed inside the vehicle body (1). Both the front axle component and the rear axle component are connected to the transmission box (4).
6. A four-wheeled vehicle transmission mechanism according to claim 5, characterized in that: The vehicle body (1) is equipped with a rotating rod module (505), and the first output shaft (502) is connected to the rotating rod module (505) in a transmission connection.
