CN202392051U

CN202392051U - Double-motor double-output integrated anti-backlash gearbox

Info

Publication number: CN202392051U
Application number: CN2011205265918U
Authority: CN
Inventors: 林海梁; 倪绍祥; 赵志惠; 赵双双
Original assignee: Jiangsu Shinri Heavy Industry Science & Technology Co Ltd
Current assignee: Jiangsu Shinri Heavy Industry Science & Technology Co Ltd
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2012-08-22
Anticipated expiration: 2021-12-16

Abstract

The utility model relates to the technical field of gearboxes, and in particular relates to a double-motor double-output integrated anti-backlash gearbox. The double-motor double-output integrated anti-backlash gearbox comprises two motors, two reduction gearboxes and a gear set, wherein a main motor and a secondary motor are respectively connected with one reduction gearbox, the reduction gearbox of the main motor is connected with a gear I, the gear I is meshed with a gear II, the reduction gearbox of the secondary motor is connected with a gear III, the gear III is meshed with a gear IV, the gear II, the gear IV, a gear V and a gear VI are coaxial, the gear V is meshed with a gear VII, the gear VI is meshed with a gear VIII, the gear VII is connected with an output gear I, and the gear VIII is connected with an output gear II. According to the double-motor double-output integrated anti-backlash gearbox disclosed by the utility model, by utilizing an integral structure of double-motor input and double-gear output and an electrically controlled anti-backlash mechanism, non-clearance movement is realized and can be permanently kept, and the location precision of a machine tool is not influenced by the abrasion of a mechanical component.

Description

Dual-motor dual output one clearance elimination gear case

Technical field

The utility model relates to the gear-box technical field, especially a kind of dual-motor dual output one clearance elimination gear case.

Background technique

Backlass is the important precision parameter of numerical control machine tool, and we adopt single motor input in the past, the helical gear crack that disappears, the scheme of dish spring adjustment; Can not be accurately with guarantee to disappear the crack result reliably, along with development of technology, the development of numerical control system is joined two electric cracks that disappear of speed reducer from external introduction dual-motor; Be easy to control, the crack effect stability that disappears obtains extensive favorable comment; But velocity ratio is less, and output torque is limited and the outsourcing cost is higher, so Applicable scope is less.

The model utility content

In order to overcome the deficiency of existing technology, the utility model provides a kind of dual-motor dual output one clearance elimination gear case.

The utility model solves the technological scheme that its technical problem adopted: a kind of dual-motor dual output one clearance elimination gear case comprises two motors, two speed reduceres, gear train, main motor and respectively be connected with a speed reducer from motor; The speed reducer connection gear one of main motor, gear one engaging gear two is from the speed reducer connection gear three of motor; Gear three engaging gears four; Gear two, gear four, gear five and gear six are coaxial, gear five engaging gears seven, gear six engaging gears eight; Gear seven connects output gear one, and gear eight connects output gear two.

The beneficial effect of the utility model is, adopts the dual-motor input bidentate wheel output of integral structure, and the anti-backlash mechanism of electrical control is realized that no gap moves, and can forever be kept, and can not influence the lathe Location accuracy because mechanical part weares and teares.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the structural representation of the utility model;

Among the figure 1, motor, 2, speed reducer, 3, gear train, 4, main motor, 5, charger; 6, gear one, 7, gear two, 8, gear three, 9, gear four, 10, gear five, 11, gear six; 12, gear seven, 13, gear eight, 14, output gear one, 15, output gear two.

Embodiment

Like Fig. 1 is the structural representation of the utility model, and a kind of dual-motor dual output one clearance elimination gear case comprises two motors 1, two speed reduceres 2, gear train 3; Main motor 4 and respectively be connected with a speed reducer 2, speed reducer 2 connection gear 1 of main motor 4, gear one 6 engaging gears 27 from motor 5; From speed reducer 2 connection gear 38 of motor 5, gear 38 engaging gears 49, gear 27, gear 49, gear 5 10 and gear 6 11 are coaxial; Gear 5 10 engaging gears 7 12; Gear 6 11 engaging gears 8 13, gear 7 11 connects output gear 1, and gear 8 12 connects output gear 2 15.

Main motor 4 passes to output gear one 14 realization outputs through gear 5 10 after being passed to gear 27 with gear 1, after motor 5 and gear 38 are passed to gear 49, passes to output gear 2 15 realization outputs through middle gear 6 11.

The utility model is a dual-motor principal and subordinate drive pattern, and the preload function through the principal and subordinate drives applies biasing for the moment of torsion that receives position feedback control, on driving shaft and driven shaft, adds moment of torsion in the opposite direction, makes it be in the state that keeps tension force all the time.Through numerical control system control preload tension force; Can eliminate the drive gap that each link exists in the Transmitted chains, make two output gear wheel and rack two reverse side engagements, realize the motion of no gap; And forever kept, can not influence the lathe Location accuracy because of the mechanical part wearing and tearing.

Claims

1. a dual-motor dual output one clearance elimination gear case comprises two motors (1), two speed reduceres (2), gear train (3), it is characterized in that; Main motor (4) and respectively be connected with a speed reducer (2) from motor (5); Speed reducer (2) connection gear one (6) of main motor (4), gear one (6) engaging gear two (7) is from speed reducer (2) connection gear three (8) of motor (5); Gear three (8) engaging gears four (9); Gear two (7), gear four (9), gear five (10) and gear six (11) are coaxial, gear five (10) engaging gears seven (12), gear six (11) engaging gears eight (13); Gear seven (11) connects output gear one (14), and gear eight (12) connects output gear two (15).