Energy storage type buffer coupling

Abstract

The invention discloses an energy storage type buffer coupling, which realizes flexible transmission through the combination of a spiral slide way and a spring, reduces and eliminates mechanical impact caused by a transmission part when an automobile accelerates and shifts gears, and realizes flexible linkage of different rotating speeds. According to the energy storage type buffer coupling, mechanical kinetic energy is converted into spring potential energy through a sliding way on the coupling body 1, and torsion flexible transmission is completed by pushing the coupling body 3 to rotate in an accelerated mode through spring counter-acting force 2. When the spring is applied to a new energy automobile, the stress of the spring 3 is gradually changed when the automobile is started and accelerated, the automobile is not easy to slip, and when the automobile slips, the potential energy stored by the spring is quickly released, the stress of the spring 3 is quickly reduced, and the automobile is stopped when the slipping phenomenon occurs.

Description

Technical Field

[0001] The invention relates to a coupling device in an automobile mechanical transmission system. Background Art

[0002] In current automotive automatic transmission systems, the torque converter suffers from low transmission efficiency at low speeds. When starting and shifting into gear, the speed difference between the drive shaft and the driven shaft creates mechanical shock during the transmission connection, resulting in a loss of transmission smoothness and a jerky feeling when outputting power to the wheels. This compromises the vehicle's comfort during gear changes.

[0003] In new energy vehicles, due to the high torque characteristics of the motor, new energy vehicles are prone to slipping when starting or accelerating on slippery roads, posing a safety hazard. Summary of the Invention

[0004] To address the above-mentioned issues, the present invention provides a novel energy-storage buffer coupling. This coupling converts mechanical energy into spring potential energy, and then achieves flexible torque output through the flexible variation of the spring's reaction force, thereby buffering mechanical shock. In this energy-storage buffer coupling, a helical slideway connects 1 and 2, and a helical slideway connects 2 and 3. During operation, the axial displacement of 2 compresses (or stretches) the spring, converting this compressed (or stretched) potential energy into stored energy. The spring's reaction force then accelerates 3 through the inclined force component of 2, thereby buffering the mechanical shock caused by the interlocking of different speeds. As the speed of the driven shaft gradually increases, the stored compressed (or stretched) potential energy of the spring is automatically released, converted into mechanical kinetic energy, and fed back into the transmission system. During this process, the force applied to 3 gradually changes with the deformation of the spring, effectively buffering the mechanical shock during speed changes while also ensuring smooth transmission.

[0005] When used in new energy vehicles, the force on 3 changes gradually when the car starts and accelerates, making it less likely to slip. Moreover, when slipping occurs, the potential energy stored in the spring is quickly released, the force on 3 decreases rapidly, and the slipping phenomenon will stop.

[0006] The technical solution adopted by this invention is as follows: Components 1 and 2 have spiral slideways. To prevent overload and flameout, the tail of the slideway gradually transitions into an annular slideway. In the event of an overload, mechanical kinetic energy can be released through the annular slideway, preventing engine stalling. The slideway of component 1 is on the surface, while the slideway of component 2 is on the inner wall. Component 3 has a raised point on its head that mates with the slideway on the inner wall of component 2. Component 2 has a raised point on its inner wall that mates with the spiral slideway on the surface of component 1. The raised point on the inner wall of component 2 mates with the slideway on the surface of component 1, enabling spiral sliding of component 2 between 1 and 2. The raised point on component 3 mates with the spiral slideway on the inner wall of component 2, enabling spiral sliding of component 2 between 2 and 3. During operation, components 1 and 3 remain relatively fixed, allowing component 2 to spirally slide along the surfaces of 1 and 3. Component 2 is connected to a spring at both ends, and the other ends of the spring contact a base, allowing for free rotation and providing a support point for the axial force required for the spring's expansion and contraction. During transmission, input shaft 1 generates an axial force component on the inclined surface of the spiral guideway. This force, through the protrusion on shaft 2, pushes shaft 2 axially, compressing (or stretching) the spring, converting mechanical kinetic energy into stored potential energy. This potential energy is then fed back into the transmission system via shaft 2, accelerating shaft 3 and achieving lossless torque transmission. During this process, the force on driven shaft 3 gradually changes with the deformation of the spring, buffering mechanical shock while ensuring smooth transmission.

[0007] When used in new energy vehicles, the force on 3 changes gradually when the car starts and accelerates, making it less likely to slip. Moreover, when slipping occurs, the potential energy stored in the spring is quickly released, the force on 3 decreases rapidly, and the slipping phenomenon will stop.

[0008] The beneficial effect of this invention is that, compared to other couplings, the torque of the input shaft of this energy storage buffer coupling does not directly act on the output shaft. Instead, the output shaft is rotated by the reaction force of the spring. During this process, the reaction force of the spring is flexible. Therefore, the force acting on the output shaft is also flexible, which effectively mitigates mechanical shock during the speed change process. Throughout the entire process, torque is not only transmitted smoothly but also losslessly. This achieves higher transmission efficiency than traditional hydraulic torque converters, lower manufacturing costs, and more mature production technology.

[0009] When applied to new energy vehicles, it can effectively prevent slipping and make them safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a schematic diagram of the structure of an embodiment of the present invention. In the figure: 1. Device with a spiral slideway on the surface; 2. Device with a spiral slideway on the inner wall and a raised point that mates with the slideway on 1; 3. Device with a raised point that slidably mates with the inner wall of 2; 4. Spring; 5. Base; 6. Raised point on the inner wall of 2; 7. Raised point on 3.

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the implementation principle of the present invention is described in detail below with reference to specific examples:

[0012] 1. Design 1 and 3 into tubular shapes, design 2 into cylindrical shapes, and slide 2 on the inner walls of 1 and 3. The working principle and effects produced are the same as those described in the above invention specification.

[0013] 2. Divide 2 into two parts and connect the two parts with a universal joint. This not only achieves mechanical buffering, but also reduces the impact of vibration between the input shaft and the output shaft on mechanical transmission.

[0014] 3. Designing the connection between 2 and 3 as a spline sleeve and spline connection will reduce manufacturing costs.

[0015] 4. The tail of the upper slides 1 and 2 is gradually designed to be an axial straight line, so that rigid transmission can be performed when transmitting torque beyond the design range.

[0016] The above shows and describes the basic principles, main features and advantages of this patent. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to this patent without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the claimed patent.

Claims

1. The energy storage buffer coupling converts mechanical kinetic energy into spring potential energy through the slideway on 1. The spring reaction force then pushes 3 through 2 to accelerate the rotation to complete the torque flexible transmission. It is characterized by: A device (1) having a spiral slide on its surface, a device (2) having a spiral slide and a convex point (6) that fits with the slide on its inner wall, a device (3) having a convex point (7) that fits with the slide on the inner wall, a spring (4), and a base (5).

2. The energy storage buffer coupling 1 as described in claim 1 is characterized by also including one or more slideways.

3. The energy storage buffer coupling 2 as described in claim 1 is characterized by including one or more slideways; one or more protrusions.

4. The energy storage buffer coupling 3 as described in claim 1 is characterized by including one or more protrusions.

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