Lateral clearance-free double roller enveloped worm transmission device
A technology of worm drive and double rollers, which is applied in transmission devices, gear transmission devices, mechanical equipment, etc., can solve the problems of short precision life, high relative sliding speed, and low transmission efficiency, and achieve easy precision manufacturing and processing and manufacturing , The effect of reducing friction power consumption
A technology of worm drive and double rollers, which is applied in transmission devices, gear transmission devices, mechanical equipment, etc., can solve the problems of short precision life, high relative sliding speed, and low transmission efficiency, and achieve easy precision manufacturing and processing and manufacturing , The effect of reducing friction power consumption
CN101290042AInactive Publication Date: 2008-10-22XIHUA UNIV
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[0024] The structure and working principle of the embodiment of the backlash-free double-roller enveloping toroidal worm transmission mechanism of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0025] Such as figure 1 Shown is the worm gear structure diagram of the embodiment of the backlash-free double-roller enveloping toroidal worm drive mechanism. The backlash-free double-roller enveloping toroidal worm transmission mechanism of the present invention is composed of a worm 1 and a worm wheel formed by one-time enveloping with the roller side as the tool mother surface. Such as figure 2 As shown, the worm wheel is composed of a right half-wheel body 2 and a left half-wheel body 5, and cylindrical rollers 4 are uniformly arranged in the radial direction, and the right half-wheel body 2 can rotate along its center of rotation relative to the left half-wheel body 5, The two are misplaced and installed, and are fastene...
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The invention discloses a backlash-free double rollers enveloping worm gear, a worm wheel of the transmission mechanism comprises two half worm wheels, the rollers are uniformly distributed in circumferential direction of each half worm wheel, the rollers rotate on the rotation axes; the two rows of rollers are arranged alternatively, wherein, one row of the rollers are engaged with left flank of the worm, the other row of rollers contact the right flank of the worm; the left and right flanks of the worm are respectively enveloped by rollers which are arranged at appropriate positions on the top and bottom of the main plane; through the adjustment of the mounting positions of the two half worm wheels, the rollers can always be in contact with the flank of the worm ,so as to achieve no backlash transmission. The transmission mechanism eliminates the return error of the transmission, makes the transmission smooth and improves the accuracy of transmission. The invention has the advantages of simple structure, easy manufacture, low cost and good economy, is a novel worm transmission device combining precision transmission and power transmission, is capable of being used for precision indexing, precision transmission and precision power transmission.
Description
technical field [0001] The invention belongs to the technical field of mechanical transmission, in particular to a backlash-free toroidal worm transmission mechanism in worm transmission. Background technique [0002] In gear transmission, proper tooth backlash is one of the necessary conditions for the normal operation of the transmission mechanism. The existence of backlash can avoid the extrusion or jamming caused by the expansion of gear teeth due to force deformation and frictional heat; it can compensate manufacturing and assembly errors to a certain extent, so that a more economical manufacturing process can be used; it can provide accommodation The space for lubricating oil is convenient for tooth surface lubrication, etc. However, due to the existence of tooth backlash, it will inevitably bring shock, vibration, noise, and reduce system follow-up accuracy and stability to modern electromechanical systems such as industrial robots, CNC machine tools, printing equipm...
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Patent Timeline
22 Oct 2008
Publication
CN101290042A
- IPC
- F16H1/16; F16H55/22; F16H55/24
- Inventors
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