Manufacturing method of mechanical gear infinitely variable transmission

Abstract

The present invention belongs to the technical field of continuously variable transmission, and is particularly concerned with a method for manufacturing a mechanical gear infinite continuously variable transmission. A driving wheel in a driving wheel group is mounted on a rotating shaft of a rotating element, the driving wheel is fixedly sleeved on the rotating shaft through a center hole, and the driving wheel is meshed with a detection gear in a detection gear group. The rotating element drives the rotating shaft to rotate using a driving device such as a motor, and uses an infrared detection group to detect the deviation between the center hole of the driving wheel and the axis of the driving wheel. The present invention detects the master and driven gears in the continuously variable transmission during the manufacturing process of the mechanical gear infinite continuously variable transmission. The detection is mainly performed by emitting infrared radiation by the infrared detection group to detect the meshing teeth and the inner wall of the tooth groove on the periphery of the teeth. When the infrared radiation contacts a defective area or a spitting area, it causes the infrared receiving value to change and exceed or be less than the normal gear detection value. This allows the accurate use of qualified gears for the assembly of the continuously variable transmission to avoid the problem of unqualified gears affecting the normal operation of the continuously variable transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of continuously variable transmissions, in particular to a method for manufacturing a mechanical gear infinitely variable transmission. Background Art

[0002] A continuously variable transmission, also known as a CVT, uses a transmission belt and master and driven wheels with variable working diameters to transmit power, which can achieve continuous changes in the transmission ratio, thereby obtaining the best match between the transmission system and the engine operating conditions; the main structure of a mechanical gear infinitely variable transmission is a large number of gears of different diameters and shapes, which are mainly used to transmit and pull the continuously variable transmission. The gears used in the current mechanical gear infinitely variable transmission need to be processed by milling and drilling, but the processing process does not detect damage or defects on the outer surface of the gear, which will increase the friction and heat generated during the use of the gear, as well as increase the louder noise generated by the cooperation of the gear with other components, which will affect the normal use and service life of the mechanical gear infinitely variable transmission. Summary of the Invention

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the present invention provides a method for manufacturing a mechanical gear infinitely variable transmission, and points out the problem that if the gears in the current mechanical gear infinitely variable transmission are used in the continuously variable transmission without detecting damage, it will affect the normal operation of the continuously variable transmission.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A method for manufacturing a mechanical gear infinitely variable transmission, the method comprising the following steps:

[0007] For a mechanical gear infinitely variable transmission including: a driving wheel set, a driven wheel set, a metal belt set and a hydraulic system, the method is as follows:

[0008] S1. The detection mechanism includes a rotating element, a detection gear set, and an infrared detection set. The detection mechanism detects the driving wheel set and the driven wheel set as follows:

[0009] a. The driving wheel in the driving wheel group is mounted on the rotary shaft of the rotating element, the driving wheel is fixedly mounted on the rotary shaft through the center hole, and the driving wheel meshes with the detection gear in the detection gear group;

[0010] b. The rotary element uses a driving device to drive the rotary shaft to rotate, and uses an infrared detection group to detect the deviation between the center hole of the driving wheel and the axis of the driving wheel. The detection gear group also detects the tangential comprehensive deviation of the gear and the tangential comprehensive deviation of a single tooth;

[0011] c. As above, the driven wheel of the driven wheel assembly is mounted on the rotary shaft of the rotating element. The driven wheel is fixedly mounted on the rotary shaft through the center hole, and the driven wheel is engaged with the detection gear in the detection gear set. The detection gear set and infrared detection group are used to measure the comprehensive error of the driven wheel;

[0012] d. If there is any deviation during the test, the driving wheel or driven wheel needs to be re-milled, or discarded and replaced with a new driving wheel or driven wheel for comprehensive testing until it passes the test;

[0013] e. The driving wheel or driven wheel that has passed the inspection can be installed as a component of the driving wheel set and the driven wheel set in the mechanical gear infinitely variable transmission.

[0014] S2. Both driving wheels are mounted on the driving shaft through the center hole, and the two driving wheels are respectively slidably mounted and fixedly mounted on the driving shaft, wherein the conical surfaces of the two driving wheels relative to each other form a V-shaped transmission groove and contact the side surfaces of the metal belts in the metal belt assembly;

[0015] S3. The driven shaft is arranged parallel to the driving shaft, and the two driven wheels are both arranged on the driven shaft through the center hole. The two driven wheels are respectively slidably arranged and fixedly arranged on the driven shaft, wherein the conical surfaces of the two driven wheels are relative to each other to form a V-shaped transmission groove and contact the side surface of the metal belt in the metal belt assembly;

[0016] S4. The steel belt in the metal belt assembly is looped and arranged in the transmission grooves on the driving wheel and the driven wheel, and the steel belt is in transmission connection with the driving wheel and the driven wheel;

[0017] S5. The driven shaft and the driving shaft are both rotatably connected to the mounting cavity in the transmission through a bearing seat. The axially movable driving wheel and the driven wheel are respectively arranged in a hydraulic system in the transmission. The kinetic energy is transmitted by the cylinder in the hydraulic system to cause the movable driving wheel and the driven wheel to move axially.

[0018] S6. The hydraulic system in the transmission and the drive mechanism in the transmission drive the movement of the axially movable master and slave wheels, as well as the operation of the bearings, to test the stability of the overall operation of the transmission. The noise level, heat generation value, and vibration amplitude generated during operation are also recorded.

[0019] S7. If any value of the operation test exceeds the normal range, the product needs to be disassembled and repaired, and the corresponding operating parts need to be replaced and reinstalled. If the operation test is qualified, it can be shipped out of the factory.

[0020] Furthermore, the transmission includes a driving gear, a driven gear, a planetary gear mechanism, a power input mechanism, a speed regulating gear mechanism, a power output mechanism, and a housing. The planetary gear mechanism includes a sun gear, a planetary carrier, a gear ring, and a plurality of planetary gears. The planetary gears are supported on the planetary carrier through a fixed shaft. Each of the planetary gears is meshed around the outside of the sun gear, and each planetary gear is meshed and connected to the inside of the gear ring. The gear ring is arranged in the mounting cavity of the transmission.

[0021] Furthermore, the speed regulating gear mechanism includes a speed regulating gear and a speed regulating gear shaft, the speed regulating gear is arranged on the speed regulating gear shaft, and the speed regulating gear shaft is connected to the frequency conversion motor shaft in the power output mechanism, and the speed regulating gear is engaged with the driving wheel fixed on the driving shaft.

[0022] Compared with the prior art, the present invention provides a method for manufacturing a mechanical gear infinitely variable transmission, which has the following beneficial effects:

[0023] 1. The present invention detects the master and driven gears in the continuously variable transmission during the manufacturing process of the mechanical gear infinitely variable transmission. The detection is mainly carried out by emitting infrared radiation by an infrared detection group to detect the meshing teeth and the inner wall of the tooth groove on the periphery of the teeth. When the infrared radiation contacts the defective area or the spitting area, it will cause the infrared receiving value to change and exceed or be less than the normal gear detection value. In this way, qualified gears can be accurately used for the assembly of the continuously variable transmission to avoid unqualified gears affecting the normal operation of the continuously variable transmission.

[0024] 2. The present invention utilizes an infrared detection group to emit infrared radiation to detect defects on the periphery of a gear. This not only detects areas that cannot be detected by the naked eye, thereby increasing the accuracy and convenience of gear detection, but also utilizes the change in the distance between the emission of infrared radiation and the contact detection surface to depict the outer contour of the gear in a computer. This can detect whether the gear as a whole is circular, whether the axis of the gear is aligned with the center hole of the gear formed by the opening, and further detect more qualified gears to improve the stability and performance of the mechanical gear infinitely variable transmission. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0026] like Figure 1 and Figure 2 As shown, a method for manufacturing a mechanical gear infinitely variable transmission according to one embodiment of the present invention includes the following steps:

[0027] For a mechanical gear infinitely variable transmission including: a driving wheel set, a driven wheel set, a metal belt set and a hydraulic system, the method is as follows:

[0028] S1. The detection mechanism includes a rotating element, a detection gear set, and an infrared detection set. The detection mechanism detects the driving wheel set and the driven wheel set as follows:

[0029] a. The driving wheel in the driving wheel group is mounted on the rotary shaft of the rotating element, the driving wheel is fixedly mounted on the rotary shaft through the center hole, and the driving wheel meshes with the detection gear in the detection gear group;

[0030] b. The rotating element uses a driving device to drive the rotating shaft to rotate, and uses an infrared detection group to detect the deviation between the center hole of the driving wheel and the axis of the driving wheel, and uses a detection gear group to detect the tangential comprehensive deviation and single-tooth tangential comprehensive deviation of the gear. The infrared detection group uses an infrared LED to emit infrared radiation to the periphery of the driving wheel or the driven wheel in a moving state for detection, and the infrared radiation emitted by the infrared LED is received and processed into a numerical value by an infrared receiver. At the same time, the infrared receiver receives and transmits the detection value to the control microcomputer, and the computer display screen displays the change of the detection value; the change in the value from infrared radiation emission to reception always maintains a certain numerical range. If it exceeds this value, it means that there is a defect or protrusion on the inner wall of the meshing teeth or tooth grooves on the periphery of the master and slave gears, which requires secondary milling processing of the master and slave gears to prevent the master and slave gears from affecting the normal use of the transmission.

[0031] c. As above, the driven wheel of the driven wheel assembly is mounted on the rotary shaft of the rotating element. The driven wheel is fixedly mounted on the rotary shaft through the center hole, and the driven wheel is engaged with the detection gear in the detection gear set. The detection gear set and infrared detection group are used to measure the comprehensive error of the driven wheel;

[0032] d. If there is any deviation during the test, the driving wheel or driven wheel needs to be re-milled, or discarded and replaced with a new driving wheel or driven wheel for comprehensive testing until it passes the test;

[0033] e. The driving wheel or driven wheel that has passed the inspection can be installed as a component of the driving wheel set and the driven wheel set in the mechanical gear infinitely variable transmission.

[0034] S2. Both driving wheels are mounted on the driving shaft through the center hole, and the two driving wheels are respectively slidably mounted and fixedly mounted on the driving shaft, wherein the conical surfaces of the two driving wheels relative to each other form a V-shaped transmission groove and contact the side surfaces of the metal belts in the metal belt assembly;

[0035] S3. The driven shaft is arranged parallel to the driving shaft, and the two driven wheels are both arranged on the driven shaft through the center hole. The two driven wheels are respectively slidably arranged and fixedly arranged on the driven shaft, wherein the conical surfaces of the two driven wheels are relative to each other to form a V-shaped transmission groove and contact the side surface of the metal belt in the metal belt assembly;

[0036] S4. The steel belt in the metal belt assembly is looped and arranged in the transmission grooves on the driving wheel and the driven wheel, and the steel belt is in transmission connection with the driving wheel and the driven wheel;

[0037] S5. The driven shaft and the driving shaft are both rotatably connected to the mounting cavity in the transmission through a bearing seat. The axially movable driving wheel and the driven wheel are respectively arranged in a hydraulic system in the transmission. The kinetic energy is transmitted by the cylinder in the hydraulic system to cause the movable driving wheel and the driven wheel to move axially.

[0038] S6. The hydraulic system in the transmission and the drive mechanism in the transmission drive the movement of the axially movable master and slave wheels, as well as the operation of the bearings, to test the stability of the overall operation of the transmission. The noise level, heat generation value, and vibration amplitude generated during operation are also recorded.

[0039] S7. If any value of the operation test exceeds the normal range, the product needs to be disassembled and repaired, and the corresponding operating parts need to be replaced and reinstalled. If the operation test is qualified, it can be shipped out of the factory.

[0040] like Figure 2 As shown, in some embodiments, the transmission includes a driving gear, a driven gear, a planetary gear mechanism, a power input mechanism, a speed regulating gear mechanism, a power output mechanism, and a housing. The planetary gear mechanism includes a sun gear, a planetary carrier, a gear ring, and a plurality of planetary gears. The planetary gears are supported on the planetary carrier through a fixed shaft. Each of the planetary gears is meshed around the outside of the sun gear, and each planetary gear is meshed and connected to the inside of the gear ring. The gear ring is set in the mounting cavity of the transmission.

[0041] like Figure 2 As shown, in some embodiments, the speed regulating gear mechanism includes a speed regulating gear and a speed regulating gear shaft, the speed regulating gear is arranged on the speed regulating gear shaft, and the speed regulating gear shaft is connected to the variable frequency motor shaft in the power output mechanism, and the speed regulating gear is engaged with the driving wheel fixed on the driving shaft.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for manufacturing a mechanical gear infinitely variable transmission, characterized in that: For a mechanical gear infinitely variable transmission including: a driving wheel set, a driven wheel set, a metal belt set and a hydraulic system, the method is as follows: S1. The detection mechanism includes a rotating element, a detection gear set, and an infrared detection set. The detection mechanism detects the driving wheel set and the driven wheel set as follows: a. The driving wheel in the driving wheel group is mounted on the rotary shaft of the rotating element, the driving wheel is fixedly mounted on the rotary shaft through the center hole, and the driving wheel meshes with the detection gear in the detection gear group; b. The rotary element uses a driving device to drive the rotary shaft to rotate, and uses an infrared detection group to detect the deviation between the center hole of the driving wheel and the axis of the driving wheel. The detection gear group also detects the tangential comprehensive deviation of the gear and the tangential comprehensive deviation of a single tooth; c. As above, the driven wheel of the driven wheel assembly is mounted on the rotary shaft of the rotating element. The driven wheel is fixedly mounted on the rotary shaft through the center hole, and the driven wheel is engaged with the detection gear in the detection gear set. The detection gear set and infrared detection group are used to measure the comprehensive error of the driven wheel; d. If there is any deviation during the test, the driving wheel or driven wheel needs to be re-milled, or discarded and replaced with a new driving wheel or driven wheel for comprehensive testing until it passes the test; e. The driving wheel or driven wheel that has passed the inspection can be installed as a component of the driving wheel set and the driven wheel set in the mechanical gear infinitely variable transmission; S2. Both driving wheels are mounted on the driving shaft through the center hole, and the two driving wheels are respectively slidably mounted and fixedly mounted on the driving shaft, wherein the conical surfaces of the two driving wheels relative to each other form a V-shaped transmission groove and contact the side surfaces of the metal belts in the metal belt assembly; S3. The driven shaft is arranged parallel to the driving shaft, and the two driven wheels are both arranged on the driven shaft through the center hole. The two driven wheels are respectively slidably arranged and fixedly arranged on the driven shaft, wherein the conical surfaces of the two driven wheels are relative to each other to form a V-shaped transmission groove and contact the side surface of the metal belt in the metal belt assembly; S4. The steel belt in the metal belt assembly is looped and arranged in the transmission grooves on the driving wheel and the driven wheel, and the steel belt is in transmission connection with the driving wheel and the driven wheel; S5, the driven shaft and the driving shaft are both rotatably connected to the mounting cavity in the transmission through the bearing seat, and the axially movable driving wheel and the driven wheel are respectively arranged in the hydraulic system in the transmission, and the kinetic energy is transmitted by the cylinder in the hydraulic system to cause the movable driving wheel and the driven wheel to move axially; S6. The hydraulic system in the transmission and the drive mechanism in the transmission drive the movement of the axially movable master and slave wheels, as well as the operation of the bearings, to test the stability of the overall operation of the transmission. The noise level, heat generation value, and vibration amplitude generated during operation are also recorded. S7. If any value of the operation test exceeds the normal range, the product needs to be disassembled and repaired, and the corresponding operating parts need to be replaced and reinstalled. If the operation test is qualified, it can be shipped out of the factory.

2. The method for manufacturing a mechanical gear infinitely variable transmission according to claim 1, characterized in that: The transmission includes a driving gear, a driven gear, a planetary gear mechanism, a power input mechanism, a speed regulating gear mechanism, a power output mechanism, and a housing. The planetary gear mechanism includes a sun gear, a planet carrier, a gear ring, and a plurality of planetary gears. The planetary gears are supported on the planet carrier through a fixed shaft. Each of the planetary gears is meshed around the outside of the sun gear, and each planetary gear is meshed and connected to the inside of the gear ring. The gear ring is set in the installation cavity of the transmission.

3. The method for manufacturing a mechanical gear infinitely variable transmission according to claim 2, characterized in that: The speed regulating gear mechanism includes a speed regulating gear and a speed regulating gear shaft. The speed regulating gear is arranged on the speed regulating gear shaft, and the speed regulating gear shaft is connected to the frequency conversion motor shaft in the power output mechanism. The speed regulating gear is engaged with the driving wheel fixed on the driving shaft.

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