Gear actuator for double clutches

Abstract

The invention relates to the technical field of double clutches, in particular to a gear actuator for double clutches, which comprises a first support shaft, a second support shaft and a support frame, a first moving shaft is slidably connected onto the first support shaft, a first finger-shaped part is fixedly connected onto the first moving shaft, a second moving shaft is slidably connected onto the first moving shaft, and a second finger-shaped part is fixedly connected onto the second moving shaft. The second moving shaft is fixedly connected with a second finger-shaped part; a guide cam part is rotationally arranged on the second supporting shaft; a power mechanism is arranged at the rear end of the supporting frame, a conversion mechanism is arranged at the lower end of the supporting frame, and a transmission mechanism is arranged inside the upper end of the supporting frame. By arranging the power mechanism and the transmission mechanism, control over the first moving shaft and the second moving shaft is achieved, and it is ensured that the first finger-shaped part and the second finger-shaped part can complete the gear shifting action. By means of the design, the problem of oil leakage possibly occurring in a traditional hydraulic system is avoided, the maintenance cost is remarkably reduced, the reliability of the system is improved, and the service life of the system is prolonged.

Description

Technical Field

[0001] This invention relates to the field of dual-clutch technology, and more particularly to a gear actuator for dual-clutch systems. Background Technology

[0002] To improve fuel economy, there is a trend towards replacing existing manual transmissions with automated manual transmissions and dual-clutch transmissions, rather than replacing existing manual transmissions with automatic transmissions. Due to this trend, dual-clutch transmissions achieve the functions of automatic transmissions through the assistance of gear actuators and clutch actuators. In this type of dual-clutch transmission, gears 1, 3, 5, and 7 are connected to one clutch (hereinafter referred to as the "first clutch"), and gears 2, 4, 6, and R are connected to another clutch (hereinafter referred to as the "second clutch"). The dual-clutch transmission uses an automatic transmission control unit to control gear changes, with the first and second clutches alternately transmitting power to the gearshift wheel to achieve gear shifting. Furthermore, the dual-clutch transmission uses different gear actuators to achieve gear shifting for gears 1, 3, 5, and 7, and gears 2, 4, 6, and R. This allows for a working structure with two solenoids that generate power to select odd and even gears respectively.

[0003] Existing dual-clutch actuators utilize hydraulic systems to control the disengagement, engagement, and shifting of the two clutches. However, hydraulic systems are prone to oil leakage during operation, which not only wastes resources but may also pollute the environment. Furthermore, hydraulic systems are expensive to maintain, requiring regular replacement of oil and seals, increasing operating costs. Therefore, a gear actuator for dual-clutch transmissions is needed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a gear actuator for a dual clutch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a gear actuator for a dual-clutch transmission, comprising a first support shaft, a second support shaft, and a support frame. The first and second support shafts are arranged in parallel. A first movable shaft is slidably connected to the first support shaft, and a first finger-shaped portion is fixedly connected to the first movable shaft. A second movable shaft is slidably connected to the first movable shaft, and a second finger-shaped portion is fixedly connected to the second movable shaft. Two guide cams are rotatably arranged on the second support shaft and are symmetrically distributed on the second support shaft. A power mechanism is provided at the rear end of the support frame, a conversion mechanism is provided at the lower end of the support frame, and a transmission mechanism is provided inside the upper end of the support frame. Two sets of transmission mechanisms are provided, each corresponding to one of the guide cams. The power mechanism transmits power to the guide cams through the transmission mechanism.

[0006] As a further description of the above technical solution: The guide cam component includes a rotating column, a sliding groove, and a slider. The rotating column is rotatably connected to the second support shaft. There are two rotating columns, which are symmetrically distributed on the second support shaft. The surface of the rotating column is provided with a sliding groove, and the slider is slidably connected inside the sliding groove. The two sliders are respectively fixedly connected to the first moving shaft and the second moving shaft.

[0007] As a further description of the above technical solution: The chute is provided with a horizontal section and an inclined section, and the horizontal section and the inclined section are connected.

[0008] As a further description of the above technical solution: The transmission mechanism includes a first bevel gear, a second bevel gear, a first transmission shaft, a transmission cylinder, a transmission hole, a transmission rod, a second transmission shaft, a spring, and a cylindrical hole. The second transmission shaft is rotatably connected to the front end of the support frame. The second bevel gear is fixedly connected to the front end of the second transmission shaft, and the first bevel gear meshes with the side end of the second bevel gear. The first bevel gear is fixedly connected to a rotating column. A transmission rod is slidably connected inside the second transmission shaft, and a spring is fixedly connected inside the second transmission shaft. The other end of the spring is fixedly connected to the transmission rod. A transmission cylinder is slidably connected to the second transmission shaft. A cylindrical hole is opened at the front end of the transmission cylinder, and the second transmission shaft is located inside the cylindrical hole. A transmission hole is opened at the rear end of the transmission cylinder, and the transmission hole cooperates with the transmission rod. The first transmission shaft is rotatably connected to the rear end of the support frame. The front end of the first transmission shaft is located inside the transmission hole of the transmission cylinder and is slidably connected to the transmission cylinder.

[0009] As a further description of the above technical solution: The first drive shaft has a cylindrical shape at one end and a hexagonal prism shape at the other end; the drive rod is hexagonal prism shaped.

[0010] As a further description of the above technical solution: The power mechanism includes a servo motor, a rotating shaft, a first gear, and a second gear. The servo motor is located at the rear of the support frame. The output end of the servo motor is fixedly connected to the rotating shaft. The front end of the rotating shaft is fixedly connected to the first gear. The first gear has second gears meshing on both sides. The second gears are fixedly connected to the first transmission shaft.

[0011] As a further description of the above technical solution: The conversion mechanism includes an electric telescopic rod, a connecting block, a first sliding rod, a first swing rod, a first sliding hole, a connecting shaft, a second swing rod, a moving ring, a second sliding rod, and a second sliding hole. The electric telescopic rod is fixedly connected to the front end of the support frame, and the extended end of the electric telescopic rod is fixedly connected to the connecting block. The upper end of the connecting block is fixedly connected to the first sliding rod. The lower end of the support frame is rotatably connected to the connecting shaft, and the lower end of the connecting shaft is fixedly connected to the first swing rod. The lower end face of the first swing rod has a first sliding hole, and the first sliding hole and the first sliding rod are slidably connected. The upper end of the connecting shaft is fixedly connected to the second swing rod, and both sides of the upper end of the second swing rod have second sliding holes, with the second sliding rod slidably connected inside the second sliding holes. A moving ring is rotatably connected to the transmission cylinder, and the moving ring is fixedly connected to the second sliding rod.

[0012] As a further description of the above technical solution: The support frame is fixedly connected to a guide rail, and a guide block is slidably connected inside the guide rail. The guide block is fixedly connected to the moving ring.

[0013] The present invention has the following beneficial effects: 1. Compared with existing technologies, this dual-clutch gear actuator, by setting up a power mechanism and a transmission mechanism, allows the power mechanism to operate, and with the cooperation of the two sets of transmission mechanisms, it can drive two guide cams to move respectively, thereby controlling the first and second moving shafts and ensuring that the first and second finger parts can complete the gear shifting action. This design not only avoids the oil leakage problems that may occur in traditional hydraulic systems, but also significantly reduces maintenance costs and improves the reliability and service life of the system.

[0014] 2. Compared with existing technologies, this dual-clutch gear actuator, by comprising an electric telescopic rod, a connecting block, a first sliding rod, a first swing rod, a first sliding hole, a connecting shaft, a second swing rod, a moving ring, a second sliding rod, and a second sliding hole, operates as follows: When the electric telescopic rod operates, it, in cooperation with the connecting block, drives the first sliding rod to slide within the first sliding hole, thereby rotating the first swing rod. Then, in cooperation with the connecting shaft, it drives the second swing rod to swing, which in turn drives the moving ring, which, in cooperation with the second sliding hole and the second sliding rod, moves the transmission cylinder. When the left transmission cylinder moves forward, the power of the power mechanism is transmitted to the left guide cam. With the cooperation of the first moving shaft, the first finger-shaped part moves, thus adjusting the odd gear. When the right transmission cylinder moves forward, the power of the power mechanism is transmitted to the right guide cam. With the cooperation of the second moving shaft, the second finger-shaped part moves, thus adjusting the even gear and reverse gear. In this way, during the gear adjustment process, only one drive unit is needed to independently perform the selection of odd gear, even gear and reverse gear, thereby reducing the equipment investment cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective; Figure 2 For the present invention Figure 1 Enlarged view of section A in the middle; Figure 3 This is a schematic diagram of the overall structure of the invention from a second perspective; Figure 4 For the present invention Figure 3 Enlarged view of section B; Figure 5 This is a schematic diagram of the internal structure of the transmission mechanism of the present invention; Figure 6 This is a first-view structural schematic diagram of the conversion mechanism of the present invention; Figure 7 This is a schematic diagram of the conversion mechanism of the present invention from a second perspective; Figure 8 This is a schematic diagram of the internal structure of the support frame of the present invention; Figure 9 This is a schematic diagram of the structure of the guide cam component and the second support shaft of the present invention.

[0016] Legend: 1. First support shaft; 2. First moving shaft; 3. First finger-shaped part; 4. Second moving shaft; 5. Second finger-shaped part; 6. Second support shaft; 7. Guide cam component; 701. Rotating column; 702. Slide groove; 703. Slider; 8. Power mechanism; 801. Servo motor; 802. Rotating shaft; 803. First gear; 804. Second gear; 9. Conversion mechanism; 901. Electric telescopic rod; 902. Connecting block; 903. First slide rod; 904. First swing rod; 905. 906. First sliding hole; 907. Connecting shaft; 908. Second swing rod; 909. Moving ring; 910. Second sliding rod; 911. Second sliding hole; 10. Transmission mechanism; 1001. First bevel gear; 1002. Second bevel gear; 1003. First transmission shaft; 1004. Transmission cylinder; 1005. Transmission hole; 1006. Transmission rod; 1007. Second transmission shaft; 1008. Spring; 1009. Cylindrical hole; 11. Support frame; 12. Guide rail; 13. Guide block. Detailed Implementation

[0017] Reference Figure 1-9 The present invention provides a gear actuator for a dual-clutch, comprising a first support shaft 1, a second support shaft 6, and a support frame 11. The first support shaft 1 and the second support shaft 6 are arranged in parallel. A first moving shaft 2 is slidably connected to the first support shaft 1, a first finger-shaped part 3 is fixedly connected to the first moving shaft 2, a second moving shaft 4 is slidably connected to the first moving shaft 2, and a second finger-shaped part 5 is fixedly connected to the second moving shaft 4. Two guide cams 7 are rotatably arranged on the second support shaft 6 and are symmetrically distributed on the second support shaft 6. A power mechanism 8 is provided at the rear end of the support frame 11, a conversion mechanism 9 is provided at the lower end of the support frame 11, and a transmission mechanism 10 is provided inside the upper end of the support frame 11. Two sets of transmission mechanisms 10 are provided and correspond one-to-one with the guide cams 7. The power mechanism 8 transmits power to the guide cams 7 through the transmission mechanism 10.

[0018] In operation, the first support shaft 1, the second support shaft 6, and the support frame 11 are installed inside the gearbox. Then, the shifting mechanism 9 operates, transmitting power from the power mechanism 8 to the left-side guide cam 7 via the left-side transmission mechanism 10. The left-side guide cam 7 then drives the first moving shaft 2 to move on the first support shaft 1, thereby moving the first finger-shaped part 3, thus enabling the shifting of odd-numbered gears. Simultaneously, the right-side guide cam 7 remains stationary, ensuring it does not participate in the current action. When shifting to an even-numbered gear or reverse gear is required, the shifting mechanism 9 operates again, switching the power transmission path to the right-side transmission mechanism 10. The right-side guide cam 7 drives the second moving shaft 4 to move on the first moving shaft 2, thereby driving the second finger-shaped part 5 to complete the corresponding shifting operation. This design not only avoids the oil leakage problems that may occur in traditional hydraulic systems but also significantly reduces maintenance costs and improves system reliability and service life.

[0019] The guide cam component 7 includes a rotating column 701, a sliding groove 702, and a slider 703. Two rotating columns 701 are rotatably connected to the second support shaft 6, symmetrically distributed on the second support shaft 6. The rotating column 701 has a sliding groove 702 on its surface, and a slider 703 is slidably connected inside the sliding groove 702. The two sliders 703 are fixedly connected to the first moving shaft 2 and the second moving shaft 4, respectively. The sliding groove 702 has a horizontal section and an inclined section, and the horizontal section is connected to the inclined section. During operation, the rotation of the left rotating column 701 causes the slider 703 to slide inside the sliding groove 702. When the slider 703 enters the inclined section of the sliding groove 702, it drives the first moving shaft 2 to slide on the first support shaft 1, achieving the adjustment of odd-numbered gears. Similarly, the rotation of the right rotating column 701 drives the second moving shaft 4 to slide on the first moving shaft 2, achieving the adjustment of even-numbered gears and reverse gear.

[0020] The transmission mechanism 10 includes a first bevel gear 1001, a second bevel gear 1002, a first transmission shaft 1003, a transmission cylinder 1004, a transmission hole 1005, a transmission rod 1006, a second transmission shaft 1007, a spring 1008, and a cylindrical hole 1009. The second transmission shaft 1007 is rotatably connected to the front end of the support frame 11. The second bevel gear 1002 is fixedly connected to the front end of the second transmission shaft 1007. The side end of the second bevel gear 1002 meshes with the first bevel gear 1001. The first bevel gear 1001 is fixedly connected to the rotating column 701. The transmission rod 1006 is slidably connected inside the second transmission shaft 1007. A spring 1008 is fixedly connected inside the second drive shaft 1007, and the other end of the spring 1008 is fixedly connected to the transmission rod 1006. A transmission cylinder 1004 is slidably connected to the second drive shaft 1007. A cylindrical hole 1009 is opened at the front end of the transmission cylinder 1004, and the second drive shaft 1007 is located inside the cylindrical hole 1009. A transmission hole 1005 is opened at the rear end of the transmission cylinder 1004, and the transmission hole 1005 cooperates with the transmission rod 1006. A first drive shaft 1003 is rotatably connected inside the rear end of the support frame 11. The front end of the first drive shaft 1003 is located inside the transmission hole 1005 of the transmission cylinder 1004 and is slidably connected to the transmission cylinder 1004. The first drive shaft 1003 is cylindrical at one end and hexagonal prism at the other; the drive rod 1006 is hexagonal prism-shaped. During operation, when the first drive shaft 1003 rotates, it drives the drive cylinder 1004 to rotate. Then, the conversion mechanism 9 operates, causing the drive cylinder 1004 to move closer to the drive rod 1006. When the drive rod 1006 contacts the drive cylinder 1004, it compresses the drive rod 1006, causing it to slide inside the second drive shaft 1007, thereby compressing the spring 1008. The compressed spring... Spring 1008 provides a thrust to transmission rod 1006. When transmission rod 1006 aligns with transmission hole 1005 of transmission cylinder 1004, the compression spring 1008 pushes transmission rod 1006 into transmission hole 1005 of transmission cylinder 1004, thereby driving second transmission shaft 1007 to rotate. As second transmission shaft 1007 rotates, the cooperation of second bevel gear 1002 and first bevel gear 1001 drives corresponding rotating column 701 to rotate, thus facilitating gear shifting.

[0021] The power mechanism 8 includes a servo motor 801, a rotating shaft 802, a first gear 803, and a second gear 804. The servo motor 801 is mounted on the rear side of the support frame 11. The output end of the servo motor 801 is fixedly connected to the rotating shaft 802. The front end of the rotating shaft 802 is fixedly connected to the first gear 803. Second gears 804 are meshed on both sides of the first gear 803. The second gears 804 are fixedly connected to the first transmission shaft 1003. During operation, the servo motor 801 starts, driving the rotating shaft 802 to rotate, which in turn causes the first gear 803 to rotate. The rotation of the first gear 803 simultaneously drives the second gears 804 on both sides to rotate, thus driving the two transmission mechanisms 10 to move. With the cooperation of the conversion mechanism 9, the power can be transmitted to different guide cam components 7, thereby achieving control of the guide cam components 7.

[0022] The conversion mechanism 9 includes an electric telescopic rod 901, a connecting block 902, a first slide rod 903, a first swing rod 904, a first sliding hole 905, a connecting shaft 906, a second swing rod 907, a moving ring 908, a second slide rod 909, and a second sliding hole 910. The electric telescopic rod 901 is fixedly connected to the front end of the support frame 11. The extended end of the electric telescopic rod 901 is fixedly connected to the connecting block 902, and the upper end of the connecting block 902 is fixedly connected to the first slide rod 903. The lower end of the support frame 11 is rotatably connected to the connecting shaft 906, and the lower end of the connecting shaft 906 is fixedly connected to the first swing rod 904. The first swing rod 907... A first sliding hole 905 is provided on the lower end face of the 04, and the first sliding hole 905 is slidably connected to the first sliding rod 903; a second swing rod 907 is fixedly connected to the upper end of the connecting shaft 906, and a second sliding hole 910 is provided on both sides of the upper end of the second swing rod 907, and a second sliding rod 909 is slidably connected inside the second sliding hole 910; a moving ring 908 is rotatably connected to the transmission cylinder 1004, and the moving ring 908 is fixedly connected to the second sliding rod 909. During operation, the electric telescopic rod 901 starts to work, and its extended end pushes the connecting block 902 to move, thereby driving the first sliding rod 903 to slide in the first sliding hole 905. This action causes the first swing rod 904 to rotate around the connecting shaft 906, and at the same time, the rotation of the connecting shaft 906 will further drive the second swing rod 907 to swing. As the second swing rod 907 swings, it will drive the second sliding rod 909 to slide inside the second sliding hole 910. Since the second slide rod 909 is fixedly connected to the moving ring 908, the moving ring 908 will also shift accordingly. The movement of the moving ring 908 causes the transmission cylinder 1004 to slide along the second transmission shaft 1007. When the transmission cylinder 1004 approaches the transmission rod 1006, the bottom of the cylindrical hole 1009 contacts and presses the transmission rod 1006, causing it to slide inside the second transmission shaft 1007, while simultaneously compressing the spring 1008. After being compressed, the spring 1008 stores elastic potential energy and applies a reverse thrust to the transmission rod 1006. When the transmission rod 1006 aligns with the transmission hole 1005 of the transmission cylinder 1004, the spring 1008 releases energy, pushing the transmission rod 1006 into the transmission hole 1005, thereby realizing the linkage between the transmission cylinder 1004 and the second transmission shaft 1007. At this time, the rotation of the transmission cylinder 1004 is transmitted to the second bevel gear 1002 through the second transmission shaft 1007. The second bevel gear 1002 meshes with the first bevel gear 1001, thereby driving the rotating column 701 to rotate. The rotation of the rotating column 701 causes the slider 703 to slide in the slide groove 702, ultimately driving the first moving shaft 2 or the second moving shaft 4. In this way, during gear adjustment, only one drive unit is needed to independently perform the selection of odd gears, even gears, and reverse gear, thereby reducing the investment cost of the equipment.

[0023] The support frame 11 is fixedly connected to the guide rail 12, and the guide rail 12 is slidably connected to the guide block 13. The guide block 13 is fixedly connected to the moving ring 908. During operation, by setting the guide rail 12 and the guide block 13, the movement of the moving ring 908 can be limited, so that the moving ring 908 can move horizontally smoothly.

[0024] Working principle: When the electric telescopic rod 901 and the servo motor 801 receive the odd-number gear shift signal, the output of the servo motor 801 drives the rotating shaft 802 to rotate, thereby causing the first gear 803 to rotate. The rotation of the first gear 803 will simultaneously drive the second gears 804 on both sides, which in turn will drive the first transmission shaft 1003 fixedly connected to it to rotate. At this time, the hexagonal prism-shaped end of the first drive shaft 1003 slides in the drive hole 1005 of the drive cylinder 1004 and transmits power to the drive cylinder 1004. At the same time, the electric telescopic rod 901 extends. With the cooperation of the connecting block 902, the first slide rod 903 can slide inside the first slide hole 905, thereby driving the first swing rod 904 to rotate. Then, with the cooperation of the connecting shaft 906, the second swing rod 907 can swing, thereby driving the left moving ring 908 to move forward with the cooperation of the second slide hole 910 and the second slide rod 909. As the moving ring 908 moves, the left drive cylinder 1004 can move forward and slide along the second drive shaft 1007. When the drive cylinder 1004 approaches the drive rod 1006, the bottom of the cylindrical hole 1009 contacts and squeezes the drive rod 1006, causing the drive rod 1006 to slide into the second drive shaft 1007, while compressing the spring 1008. After being compressed, the spring 1008 stores elastic potential energy and applies a reverse thrust to the transmission rod 1006. When the transmission rod 1006 aligns with the transmission hole 1005 of the transmission cylinder 1004, the spring 1008 releases energy, pushing the transmission rod 1006 into the transmission hole 1005, thereby realizing the linkage between the transmission cylinder 1004 and the second transmission shaft 1007. At this time, the rotation of the transmission cylinder 1004 is transmitted to the second bevel gear 1002 through the second transmission shaft 1007. The second bevel gear 1002 meshes with the first bevel gear 1001, thereby driving the rotating column 701 on the left to rotate. At this time, the power of the power mechanism 8 can be transmitted to the guide cam 7 on the left. Then, with the cooperation of the first moving shaft 2, the first finger part 3 can be moved, thereby adjusting the odd-numbered gears.

[0025] When shifting to an even-numbered gear or reverse, the electric telescopic rod 901 reverses its movement, causing the right-side transmission cylinder 1004 to move forward. At this time, the right-side transmission mechanism 10 repeats the above process, transmitting power to the right-side guide cam 7, which in turn drives the second moving shaft 4 to slide on the first moving shaft 2, ultimately causing the second finger-shaped part 5 to complete the corresponding gear shifting operation. Throughout the process, the coordinated action of the electric telescopic rod 901 and the shifting mechanism 9 enables rapid switching between different gears while ensuring smooth system operation and efficient response.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gear actuator for a dual-clutch transmission, comprising a first support shaft (1), a second support shaft (6), and a support frame (11), characterized in that: The first support shaft (1) and the second support shaft (6) are arranged in parallel. The first support shaft (1) is slidably connected to the first moving shaft (2). The first moving shaft (2) is fixedly connected to the first finger-shaped part (3). The first moving shaft (2) is slidably connected to the second moving shaft (4). The second moving shaft (4) is fixedly connected to the second finger-shaped part (5). The second support shaft (6) is rotatably provided with a guide cam (7). There are two guide cams (7) and they are symmetrically distributed on the second support shaft (6). The rear end of the support frame (11) is provided with a power mechanism (8). The lower end of the support frame (11) is provided with a conversion mechanism (9). The upper end of the support frame (11) is provided with a transmission mechanism (10). There are two sets of transmission mechanisms (10) and they correspond one-to-one with the guide cams (7). The power mechanism (8) transmits power to the guide cams (7) through the transmission mechanism (10).

2. A gear actuator for a dual clutch transmission as defined in claim 1, characterized in that: The guide cam component (7) includes a rotating column (701), a groove (702), and a slider (703). The rotating column (701) is rotatably connected to the second support shaft (6). There are two rotating columns (701) and they are symmetrically distributed on the second support shaft (6). The surface of the rotating column (701) is provided with a groove (702). The slider (703) is slidably connected inside the groove (702). The two sliders (703) are fixedly connected to the first moving shaft (2) and the second moving shaft (4), respectively.

3. A gear actuator for a dual clutch transmission as defined in claim 2, characterized in that: The chute (702) is provided with a horizontal section and an inclined section, and the horizontal section and the inclined section are connected.

4. A gear actuator for a dual clutch according to claim 2, characterized in that: The transmission mechanism (10) includes a first bevel gear (1001), a second bevel gear (1002), a first transmission shaft (1003), a transmission cylinder (1004), a transmission hole (1005), a transmission rod (1006), a second transmission shaft (1007), a spring (1008), and a cylindrical hole (1009). The second transmission shaft (1007) is rotatably connected to the front end of the support frame (11). The second transmission shaft (1007) is fixedly connected to the front end of the second transmission shaft (1007). The side end of the second bevel gear (1002) meshes with the first bevel gear (1001). The first bevel gear (1001) is fixedly connected to the rotating column (701). The transmission rod (1006) is slidably connected inside the second transmission shaft (1007). 007) A spring (1008) is fixedly connected inside, and the other end of the spring (1008) is fixedly connected to the transmission rod (1006); a transmission cylinder (1004) is slidably connected on the second transmission shaft (1007), and a cylindrical hole (1009) is opened at the front end of the transmission cylinder (1004). The second transmission shaft (1007) is located inside the cylindrical hole (1009). A transmission hole (1005) is opened at the rear end of the transmission cylinder (1004), and the transmission hole (1005) cooperates with the transmission rod (1006); a first transmission shaft (1003) is rotatably connected inside the rear end of the support frame (11). The front end of the first transmission shaft (1003) is located inside the transmission hole (1005) of the transmission cylinder (1004) and is slidably connected to the transmission cylinder (1004).

5. A gear actuator for a dual clutch transmission as defined in claim 4, characterized in that: The first drive shaft (1003) is cylindrical at one end and hexagonal at the other end; the drive rod (1006) is hexagonal.

6. A gear actuator for a dual clutch transmission as defined in claim 4, characterized in that: The power mechanism (8) includes a servo motor (801), a rotating shaft (802), a first gear (803), and a second gear (804). The servo motor (801) is provided on the rear side of the support frame (11). The output end of the servo motor (801) is fixedly connected to the rotating shaft (802). The front end of the rotating shaft (802) is fixedly connected to the first gear (803). The first gear (803) is meshed with the second gear (804) on both sides. The second gear (804) is fixedly connected to the first transmission shaft (1003).

7. A gear actuator for a dual clutch transmission as defined in claim 4, characterized in that: The conversion mechanism (9) includes an electric telescopic rod (901), a connecting block (902), a first slide rod (903), a first swing rod (904), a first sliding hole (905), a connecting shaft (906), a second swing rod (907), a moving ring (908), a second slide rod (909), and a second sliding hole (910). The electric telescopic rod (901) is fixedly connected to the front end of the support frame (11). The connecting block (902) is fixedly connected to the extended end of the electric telescopic rod (901). The first slide rod (903) is fixedly connected to the upper end of the connecting block (902). The connecting shaft (906) is rotatably connected to the lower end of the support frame (11). The lower end of the connecting shaft (906) is fixedly connected to a first swing rod (904), and the lower end face of the first swing rod (904) is provided with a first sliding hole (905), and the first sliding hole (905) is slidably connected to the first sliding rod (903); the upper end of the connecting shaft (906) is fixedly connected to a second swing rod (907), and the upper ends of the second swing rod (907) are provided with second sliding holes (910) on both sides, and the second sliding rod (909) is slidably connected inside the second sliding hole (910); a moving ring (908) is rotatably connected to the transmission cylinder (1004), and the moving ring (908) is fixedly connected to the second sliding rod (909).

8. A gear actuator for a dual clutch according to claim 7, characterized in that: The support frame (11) is fixedly connected to a guide rail (12), and a guide block (13) is slidably connected inside the guide rail (12). The guide block (13) is fixedly connected to the moving ring (908).

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