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CVT stepless speed changer

A variable speed machine, stepless technology, applied in the direction of mechanical equipment, elements with teeth, belts/chains/gears, etc.

Active Publication Date: 2015-12-02
张英华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention can solve the defects of the existing CVT stepless speed changer

Method used

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  • CVT stepless speed changer
  • CVT stepless speed changer
  • CVT stepless speed changer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 , figure 2 , image 3 with Figure 4 As shown, the CVT continuously variable transmission of the present invention is mainly composed of a casing 1, a front end cover 2, a rear end cover 3, a driving shaft 4, a driven shaft 5, a driving pulley 8, a driven pulley 9, a metal belt 6 and a roller Type clamp 7 components. The metal 6 belt is wound on the driving pulley 8 and the driven pulley 9, the driven rotating shaft 5 stretches out from the front end cover 2, and the driving rotating shaft 4 enters from the rear end cover 3. The input ring screw 10 is sleeved on the rear section of the driving shaft 4 in the housing 1 , and the rear end of the input ring screw 10 is fixed on the inner side of the rear end cover 3 . The input gear nut 12 has an inner thread and an outer tooth, and the input gear nut 12 is matched with the input ring screw 10 , and the input ring screw 10 is screwed into the input gear nut 12 . The front end of the input gear nut 12 is fixe...

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PUM

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Abstract

The invention discloses a CVT stepless speed changer. A clamping speed reduction motor rotates to drive a clamping nut to rotate, so that a clamping screw and a roller are driven to move upwards or downwards to adjust the tightness degree and the slipping degree of a metal belt, and the rotating speed ratio of a driving rotating shaft to a driven rotating shaft is adjusted. If the needed rotating speed is not reached through a roller type clamping device, the rotating speed will be adjusted through two AT stepless speed changers. The adjusting process of the AT stepless speed changer on the driving rotating shaft includes the steps that an input speed reduction motor rotates and drives an input gear nut to rotate on an input annular screw through an input driving gear, and the input gear nut drives an input spline to move through an input rear thrust bearing, so that an input thrust disc on the input spline moves to adjust pressure exerted on input conical rollers, the rolling speed of the input conical rollers is adjusted, and then the rotating speed difference between a driving grooved wheel and a driving belt wheel is adjusted. The adjusting process of the AT stepless speed changer on the driven rotating shaft is the same as that of the AT stepless speed changer on the driving rotating shaft.

Description

Technical field: [0001] The invention relates to a CVT continuously variable speed changer. Background technique: [0002] Existing CVT continuously variable speed changer mainly is made up of shell, end cover, driving shaft, driven shaft, driving pulley, driven pulley, metal belt and hydraulic roller clamp. When the belt is tight, the ratio of the speed of the driving shaft in the belt drive to the speed of the driven shaft is equal to the inverse ratio of the diameter of the driving pulley to the diameter of the driven pulley; in the case of a loose belt, the driving shaft in the belt drive The ratio of the rotational speed of the rotating shaft to the rotational speed of the driven shaft is no longer equal to the inverse ratio of the diameter of the driving pulley to the diameter of the driven pulley, and the belt slips. The CVT continuously variable transmission uses hydraulic roller clamps to adjust the slackness of the metal belt, and then adjusts the degree of slippa...

Claims

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Application Information

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IPC IPC(8): F16H9/04
CPCF16H9/04F16H2061/6604
Inventor 张英华
Owner 张英华
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