Torque booster
By designing a torque enhancer, using the eccentricity relationship between the flange and the pinion, high torque and low energy consumption transmission of the electric vehicle when starting or climbing, solving the torque and energy consumption problems of the electric vehicle transmission mechanism and reducing costs.
Patent Information
- Application Number
- CN202422209525.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-10
AI Technical Summary
Existing electric vehicles are difficult to output sufficient torque and consume low energy at the same time when starting or climbing, and the transmission mechanism fails to effectively solve this problem.
A torque enhancer is designed to drive the flange to rotate by driving the motor, the pinion moves in the inner groove, and the linkage connects the crankshaft to make a circular motion. The eccentric distance of the crankshaft is twice the eccentric distance of the pinion, achieving twice the torque output.
During the start or climbing process, the torque booster can not only meet the output torque requirements, but also meet the low energy consumption requirements. It has a simple structure and reduces the cost of development and gear processing.
Smart Images
Figure CN223174265U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of power transmission, and particularly relates to a torque increasing device. Background Art
[0002] Existing electric vehicles generally include four core components: a motor, a battery, a controller, and a charger. The motors of most electric vehicles have high efficiency at low power. Once the output torque increases, the efficiency value drops sharply. Such vehicles often show high speed on flat roads, but their speed drops sharply when going uphill, and the power consumption also increases significantly accordingly.
[0003] So far, there is no transmission mechanism suitable for electric vehicles that can output sufficient torque and meet the requirement of low energy consumption during starting or climbing. Content of the Utility Model
[0004] To solve the problems raised in the above background art, the utility model provides a torque increasing device with high torque and low energy consumption transmission efficiency.
[0005] To achieve the above object, the utility model provides the following technical solution: a torque increasing device, including a housing. A crankshaft is arranged on one side of the housing. A driving rotating shaft is arranged on one side of the crankshaft. A fixed internal gear ring is arranged on the other side of the housing. Internal tooth grooves are configured on the inner circumference of the fixed internal gear ring. The internal tooth grooves are meshed and connected with small gears. One side of the small gear is eccentrically connected to a flange through a rotating shaft. The other side of the small gear is connected to a connecting rod through a rotating shaft. The two ends of the connecting rod are respectively connected to the small gear and the crankshaft. The eccentricity of the crankshaft is twice that of the small gear.
[0006] Further, a driving motor is configured on one side of the torque increasing device. The driving motor is arranged on the side of the torque increasing device where the fixed internal gear ring is located. The driving motor drives the flange to rotate.
[0007] Further, a central shaft hole is arranged in the middle of the flange. The rotating shaft of the driving motor passes through the central shaft hole and is fixed to the rotating shaft of the driving motor through a key pin.
[0008] Further, an eccentric shaft hole is arranged on the flange. The shaft hole of the small gear and the eccentric shaft hole of the flange are connected through a rotating shaft passing through a key pin. A fixed shaft is configured on the edge of the small gear and is rotatably connected to the connecting rod.
[0009] Further, the connecting rod and the crankshaft are rotatably connected through a rotating shaft.
[0010] Further, the number of teeth of the small gear is half of the number of teeth of the internal tooth grooves.
[0011] Further, the housing includes a first half-shell and a second half-shell, which are tightly connected to each other.
[0012] A balance shaft is provided on the other side of the crankshaft. The balance shaft is rotatably connected to the side of the second half-shell, and a synchronous gear is nested on the balance shaft.
[0013] Further, the internal tooth groove is snap-fitted and fixed inside the second half-shell.
[0014] Further, the lower bearing seat of the first half-shell is rotatably connected to a foot pedal shaft rod. Foot pedals are provided at both ends of the foot pedal shaft rod, and a foot pedal transmission gear meshing with the driving gear is nested on the foot pedal shaft rod.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] The torque increaser provided by the present utility model drives the flange to rotate through a driving motor. The pinion makes a circular motion in the internal tooth groove, driving the connecting rod to drive the crankshaft to make a circular motion. Since the eccentricity of the crankshaft is twice that of the pinion, the output of the torque increaser produces twice the torque relative to the input. This torque increaser is suitable as a transmission mechanism for electric vehicles. During starting or climbing, it can not only meet the demand for output torque but also meet the requirement of low energy consumption. Moreover, the structure of this torque increaser is simple, reducing the development cost of molds and the cost of gear processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is an exploded view of a torque increaser provided by the present utility model;
[0018] Figure 2 is Figure 1 a schematic diagram of the installation structure of the crankshaft and the fixed internal gear ring inside;
[0019] Figure 3 is Figure 1 a three-dimensional view of the connection structure between the connecting rod and the crankshaft inside;
[0020] Figure 4 is Figure 1 a top view of the connection structure between the connecting rod and the crankshaft inside;
[0021] Figure 5 is a schematic diagram of an application structure of the torque increaser provided by the present utility model.
[0022] In the figure: 1. Connecting rod; 2. Driving gear; 3. Driving rotating shaft; 4. Pedal transmission gear; 5. Pedal shaft rod; 6. Pedal; 7. First half shell; 8. Fixed internal gear ring; 9. Motor driving gear; 10. Driving motor; 11. Balance shaft; 12. Synchronous gear; 13. Crankshaft; 14. Pinion gear; 15. Second half shell; 16. Internal gear slot; 17. Central shaft hole; 18. Eccentric shaft hole; 19. Flange; 20. Rotating shaft; 21. Housing. Detailed implementation mode
[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.
[0024] Combined with Figures 1 to 4 , the present invention provides the following technical solutions: A torque increasing device 100 includes a housing 21, and the housing 21 is assembled by a first half shell 7 and a second half shell 15, and the first half shell 7 and the second half shell 15 can be fixedly connected by bolts. A crankshaft 13 is arranged on one side of the housing 21, a driving rotating shaft 3 is connected to one side of the crankshaft 13, and a balance shaft 11 is connected to the other side of the crankshaft 13. A fixed internal gear ring 8 is arranged on the other side of the housing 21, and an internal gear slot 16 is configured on the inner circumference of the fixed internal gear ring 8. The internal gear slot 16 is meshed with a pinion gear 14, one side of the pinion gear 14 is connected to a flange 19 through a rotating shaft, and the other side of the pinion gear 14 is connected to a connecting rod 1 through a rotating shaft. The two ends of the connecting rod 1 are respectively connected to the pinion gear 14 and the crankshaft 13.
[0025] Combined with Figure 5 As shown, in specific application, a driving motor 10 is configured on one side of the torque increasing device 100. Specifically, the driving motor 10 is configured on the side of the torque increasing device 100 where the fixed internal gear ring 8 is arranged. The rotating shaft of the driving motor 10 is connected to a motor driving gear 9, and the motor driving gear 9 is coaxially connected to the central shaft of the flange 10. A driving gear 2 is configured outside the driving rotating shaft 3 of the torque increasing device 100. The torque increasing device 100 is driven by the driving motor 10, and the driving gear 2 is driven to output through the driving rotating shaft 3.
[0026] Combined with Figure 1 and Figure 2 As shown, in an embodiment, an eccentric shaft hole 18 is arranged on the flange 19, and the shaft hole of the pinion gear 14 and the eccentric shaft hole 18 of the flange 19 are connected through the same rotating shaft by a key pin, and a fixed shaft is configured on the edge of the pinion gear 14 to rotatably connect with the connecting rod 1. By adopting the above technical solutions, the rotation of the flange 19 drives the rotation of the pinion gear 14, and then drives the rotation of the connecting rod 1.
[0027] Combined with Figure 3 and Figure 4 As shown, in one embodiment, the connecting rod 1 is rotatably connected to the crankshaft 13 through a rotating shaft 20. By adopting the above technical solution, the crankshaft 13 rotates around the driving shaft 3 as the axis, and one end of the connecting rod 1 moves in a circular motion with the outer circle of the crankshaft 13 as the motion track.
[0028] In one embodiment, the balance shaft 11 is rotatably connected to the side of the second half shell 15. A synchronous gear 12 is nested on the balance shaft 11, and the synchronous gear 12 is in transmission connection with the motor driving gear 9. By adopting the above technical solution, the synchronous gear 12 and the motor driving gear 9 rotate synchronously, and at the same time, the problem that the crankshaft 13 cannot control the forward and reverse rotation is solved, and after the driving motor 10 rotates and stops at the upper and lower inflection points of the crankshaft 13, it cannot be started smoothly, thus damaging the parts.
[0029] In one embodiment, a central shaft hole 17 is provided in the middle of the flange 19, and the rotating shaft of the driving motor 10 passes through the central shaft hole 17. The flange 19 and the rotating shaft of the driving motor 10 are fixed by a key pin. By adopting the above technical solution, it is ensured that the driving motor 10 rotates to drive the flange 19 to rotate stably.
[0030] In one embodiment, the number of teeth of the small gear 14 is configured to be 26, and the number of teeth of the internal tooth groove 16 is configured to be 52. The internal tooth groove 16 is snap-fitted and fixed inside the second half shell 15. By adopting the above technical solution, the connecting rod 1 is connected to the crankshaft 13 to make a circular motion. Since the eccentricity of the crankshaft 13 is twice that of the eccentricity of the small gear 14, the output of the torque multiplier 100 generates twice the torque relative to the input.
[0031] In one embodiment, the housing 21 can adopt a structure of gold plastic material or an aluminum alloy material structure. By adopting the above technical solution, the gold plastic material structure is adopted at low cost, and the aluminum alloy material structure is adopted for high-end quality to meet different market demands.
[0032] Combined with Figure 5 As shown, in one embodiment, the lower bearing seat of the first half shell 7 is rotatably connected to the foot pedal shaft rod 5. Foot pedals 6 are provided at both ends of the foot pedal shaft rod 5, and a foot pedal transmission gear 4 meshing with the driving gear 2 is nested on the foot pedal shaft rod 5. By adopting the above technical solution, the foot pedal shaft rod 5 is meshed and transmitted with the driving gear 2 through the foot pedal transmission gear 4, which is convenient for manual foot pedal use.
[0033] Working principle and usage process of the present utility model: For the torque amplifier 100 provided by the present utility model, during application, the driving motor 10 drives the flange 19 to rotate. The pinion gear 14 makes a circular motion in the internal tooth groove 16, driving the connecting rod 1 to drive the crankshaft 13 to make a circular motion. Since the eccentricity of the crankshaft 13 is twice that of the pinion gear 14, the output of the torque amplifier 100 generates twice the torque relative to the input. When the rotating shaft of the driving motor 10 rotates one circle, the driving rotating shaft 3 also rotates one circle, that is, the torque is increased by one time at the same speed, so as to be applicable as a transmission mechanism of an electric vehicle. During starting or climbing, it can not only meet the demand for output torque but also meet the requirement of low energy consumption. Moreover, the structure of the torque amplifier 100 is simple, reducing the development cost of molds and the cost of gear processing.
[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A torque booster, comprising a housing (21), characterized in that, A crankshaft (13) is arranged on one side of the housing (21), a driving rotating shaft (3) is arranged on one side of the crankshaft (13), a fixed internal gear ring (8) is arranged on the other side of the housing (21), an internal tooth groove (16) is configured on the inner circumference of the fixed internal gear ring (8), the internal tooth groove (16) is meshed and connected with a pinion gear (14), one side of the pinion gear (14) is eccentrically connected to a flange plate (19) through a rotating shaft, the other side of the pinion gear (14) is connected to a connecting rod (1) through a rotating shaft, both ends of the connecting rod (1) are respectively connected to the pinion gear (14) and the crankshaft (13), and the eccentricity of the crankshaft (13) is twice that of the eccentricity of the pinion gear (14).
2. The torque increasing device according to claim 1, wherein A driving motor (10) is configured on one side of the torque increaser, the driving motor (10) is arranged on the side of the torque increaser where the fixed internal gear ring (8) is arranged, and the driving motor (10) drives the flange plate (19) to rotate.
3. The torque increasing device according to claim 2, characterized in that: A central shaft hole (17) is arranged in the middle of the flange plate (19), and the rotating shaft of the driving motor (10) passes through the central shaft hole (17) and is fixed to the rotating shaft of the driving motor (10) through a key pin.
4. The torque booster according to claim 1, characterized in that: An eccentric shaft hole (18) is arranged on the flange plate (19), the shaft hole of the pinion gear (14) and the eccentric shaft hole (18) of the flange plate (19) are connected through a same rotating shaft by a key pin in a penetrating manner, and a fixed shaft is configured on the edge of the pinion gear (14) and is rotatably connected to the connecting rod (1).
5. The torque increasing device according to claim 1, characterized in that, The connecting rod (1) and the crankshaft (13) are rotatably connected through a rotating shaft (20).
6. The torque booster according to claim 1, characterized in that, The number of teeth of the pinion gear (14) is half of the number of teeth of the internal tooth groove (16).
7. The torque increasing device according to claim 1, characterized in that, The housing (21) includes a first half shell (7) and a second half shell (15), and the first half shell (7) and the second half shell (15) are tightly connected to each other.
8. The torque increasing device according to claim 7, wherein A balance shaft (11) is arranged on the other side of the crankshaft (13), the balance shaft (11) is rotatably connected to the side of the second half shell (15), and a synchronous gear (12) is nested on the balance shaft (11).
9. The torque increasing device according to claim 8, wherein, The internal tooth groove (16) is clamped and fixed inside the second half shell (15).
10. The torque increasing device according to claim 8, wherein, A foot pedal shaft rod (5) is rotatably connected to the bearing seat at the lower end of the first half shell (7), foot pedals (6) are arranged at both ends of the foot pedal shaft rod (5), and a foot pedal transmission gear (4) meshed with a driving gear (2) is nested on the foot pedal shaft rod (5).