Gapless gear transmission device and method for removing gear transmission gap

A technology of gear transmission and no backlash, which is applied in hoisting devices, components with teeth, portable lifting devices, etc., can solve the problems of increasing the axial size, the backlash of the teeth cannot be automatically compensated, and the structure is complex, etc., to achieve increased Axial size, wide range of application, easy to use

Inactive Publication Date: 2012-07-18
北京华彩时尚服装设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. After the adjustment, the tooth backlash cannot be automatically compensated; 2. This method can only be applied to helical gear transmission, and cannot be applied to spur gears
But this structure will affect the transmission stability of the gear, and the structure of this adjustment method is more complicated, the transmission stiffness is low, and the inner hole of the gear is required to have a longer guide length, which increases the axial dimension

Method used

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  • Gapless gear transmission device and method for removing gear transmission gap
  • Gapless gear transmission device and method for removing gear transmission gap
  • Gapless gear transmission device and method for removing gear transmission gap

Examples

Experimental program
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Effect test

Embodiment 1

[0039] see Figure 1-5As shown, a backlash-free gear transmission includes a third gear 3 connected to a driving device such as an output shaft of a motor, and a first gear 1 and a first gear 1 that are simultaneously engaged with the third gear 3 and mounted on the gear shaft 4 in parallel. Second gear 2. The first gear 1 and the second gear 2 have the same gear modulus, the first gear 1 is fixed on the gear shaft 4 through a keyway, and a wedge-like hole 11 is provided on the gear surface; the second gear 2 is sleeved on the gear shaft 4, a spring 5 and an adjusting nut 6 are installed on the gear shaft 4 at the top of the second gear 2. The second gear 2 can rotate around the gear shaft 4, and can move axially through the spring 5 and the adjustment nut 6. A wedge-like hole 11 corresponding to the first gear 1 is provided on the second gear 2. The hole 11 matches the wedge-like protrusion 21 .

[0040] The wedge-like hole 11 of the first gear 1 and the wedge-like protrus...

Embodiment 2

[0045] A method for eliminating transmission gaps between gears, including a third gear 3 connected to the motor output shaft 4, and a first gear 1 and a second gear 2 that are simultaneously engaged with the third gear 3 and installed side by side on the gear shaft 4, The first gear 1 and the second gear 2 have the same gear modulus, and the first gear 1 and the second gear 2 are respectively provided with matching wedge-like holes 11 and wedge-like protrusions 21 . The side a of the wedge-like hole 11 arranged on the radial surface of the gear and the side b of the wedge-like protrusion 21 matching it are both spiral curved surfaces, and the other sides of the wedge-like hole 11 and the wedge-like protrusion 21 are all consistent with the first The surfaces of the gear 1 and the second gear 2 are perpendicular to each other; the stagger angle between the first gear 1 and the second gear 2 is adjusted by the mutual rotation between the sides a / B, and the transmission gap betwe...

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Abstract

The invention relates to a gapless gear transmission device and a method for removing a gear transmission gap. The gapless gear transmission device comprises a third gear connected with an output shaft of a driving device, a first gear and a second gear, wherein the first gear and the second gear are simultaneously meshed with the third gear and installed on a gear shaft in parallel, gear modules of the first gear and the second gear are same, the first gear is fixed on the gear shaft through a key groove, and penetrated wedge-shape similar holes are arranged on a gear face of the first gear. The second gear is sleeved on the gear shaft and can rotate along the gear shaft, axial movement is achieved through a spring and an adjusting nut installed on the gear shaft, a wedge-shape similar protruding block matched with the wedge-shape similar holes is arranged on the second gear corresponding to the positions of the wedge-shape similar holes, and a junction surface of the holes and the protruding block is a spiral curved surface. Staggered angles between the first gear and the second gear are adjusted through mutual rotation between the wedge-shape similar holes and the wedge-shape similar protruding block, and a transmission gap between gears is removed. The gapless gear transmission device and the method are simple in structure, convenient to operate and wide in application scope.

Description

technical field [0001] The invention relates to a gear transmission device and a method, in particular to a backlash-free gear transmission device capable of effectively eliminating gear transmission gaps and a method for eliminating gear transmission gaps. Background technique [0002] In the transmission mechanism of the servo drive system, gear transmission is currently the most widely used transmission mechanism because of its instantaneous transmission ratio is constant, high transmission precision, and large load-carrying capacity. Servo drive systems, such as machine tool feed systems, robotic arms, tank aiming systems, etc., all require two-way transmission and must ensure accuracy, which requires gear transmission mechanisms to take measures to eliminate tooth backlash. At present, the existing gear transmission devices that can reduce or eliminate the gear transmission gap mainly include the following types: [0003] 1. Rigidity adjustment - adjust by double gear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H55/18
Inventor 徐之敬成献礼
Owner 北京华彩时尚服装设计有限公司
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