CN203670666U

CN203670666U - Cam and gear combined transmission speed reducer

Info

Publication number: CN203670666U
Application number: CN201420010250.9U
Authority: CN
Inventors: 董明望; 吴林; 王学新; 刘烨芒; 周思亮
Original assignee: WUHAN HUANGPO XINLONG BUILDING MACHINERY CO Ltd
Current assignee: WUHAN HUANGPO XINLONG BUILDING MACHINERY CO Ltd
Priority date: 2014-01-08
Filing date: 2014-01-08
Publication date: 2014-06-25
Anticipated expiration: 2024-01-08

Abstract

The utility model discloses a cam and gear combined transmission speed reducer, and belongs to the field of machine transmission. The cam and gear combined transmission speed reducer is composed of a box body and a combined transmission speed reduction mechanism, the combined transmission speed reduction mechanism is composed of a cylindrical cam input shaft, a roller disc transfer shaft, an output shaft and a large and small gear meshing pair, the roller disc transfer shaft is composed of a transfer shaft and a roller disc, the shaft body of the transfer shaft is in key joint with the roller disc, and one end of the shaft body of the transfer shaft is connected with a small gear. The shaft body of the output shaft is connected with a large gear. The transfer shaft is in space two-curved-face conjugate meshing with the outline face of a cylindrical cam through the curved faces of cylindrical rollers on the circumference of the roller disc, and the small gear at the end of the transfer shaft is meshed with the large gear of the output shaft. The input end of the input shaft is connected with a motor outside the box body, and the output end of the output shaft is provided with a speed reducer output shaft end outside the box body. The cam and gear combined transmission speed reducer is compact in designed structure, precise in transmission, simple, easy to implement and machine, low in cost and especially suitable for low-speed overloaded cam and gear combined transmission speed reducers.

Description

A kind of cam and gear associating gearing speed-reducer

Technical field

A kind of cam of the utility model and gear associating gearing speed-reducer, belong to mechanical transmission fields, particularly double-stage driving mechanism.

Background technique

Retarder is as the mechanical transmission component that concerns industrial lifeblood, and improving constantly of its technical merit is most important to the development of mechanical industry.Current China retarder investigative technique level is far away from American-European countries, but in recent years, a lot of scholars of China and relevant enterprise are actively drawn external advanced theory and achievement in research, and set it as the foundation that instructs production, and also oneself has obtained very gratifying achievement.Existing traditional retarder is mostly gear reducer, plane table thermoconductivity meter, worm type of reduction gearing etc., smaller for gear reducer transmission, while adopting Multi-stage transmission, cause efficiency further to decline, simultaneously under case of heavy load, flank of tooth impact force is larger, shakes and wear and tear corresponding larger in engagement process; Turbine and worm retarder can meet the demands on velocity ratio, stable drive simultaneously, but its volume is larger, between turbine and worm screw, is sliding friction, and under high-speed overload, wearing and tearing and frictional heating are comparatively serious, cause wearing and tearing large, also seriously reduce transmission efficiency simultaneously; And other common retarder is as high in transmission accuracies such as plane table thermoconductivity meter, planet-cycloid reducer, harmonic speed reducers, but that the moment of torsion of its transmission is difficult for is excessive, is not suitable for severe duty.

Model utility content

The purpose of this utility model is to provide a kind of cam and gear associating gearing speed-reducer, for low-speed heave-load operating mode provides a kind of compact structure, transmission precision, is easy to the retarder of processing.

A kind of cam of the utility model and gear associating gearing speed-reducer, formed by casing and associating transmission speed reducer structure, described associating transmission speed reducer structure is made up of cylindrical cam input shaft, roller disk shaft, output shaft and a pair of large small gear engagement pair, be arranged in casing, roller disk shaft is made up of shaft and roller disk, shaft is connected with roller disk key by the keyway of axle body, and shaft upper end is connected with small gear by spline; Described output shaft axle body is connected with gearwheel by spline; Roller disk shaft engages with the conjugation that the wide face of cylindrical cam is two sides, space curved surface by the cylindrical roller curved surface of the roller disk circumference of its axle body, and the small gear of its end engages with the gearwheel of output shaft; The input end of described cylindrical cam input shaft is connected with motor outside case by positioning bearing, and described output shaft output terminal provides reducer output shaft end by positioning bearing outward at case.

Described cylindrical cam input shaft is made up of input shaft and cylindrical cam, and input shaft axle body is connected with cylindrical cam key by two keyways.

The roller disk circumference of described roller disk shaft is uniformly distributed cylindrical roller, is connected with disk by tapered roller bearing.

The axle center of described small gear, gearwheel is equipped with spline keyway.

Described output shaft output terminal is provided with connection spline.

Described cabinet design has breather.

The utility model has solved the defect that traditional retarder exists in low-speed heave-load situation, the retarder that a kind of compact structure, transmission precision are provided, the design is simple, is easy to processing, and with low cost, be a kind of cam and gear associating gearing speed-reducer that is specially adapted to low-speed heave-load.

Accompanying drawing explanation

Fig. 1 is the utility model external overall schematic diagram

Fig. 2 is that the utility model inner body discloses schematic diagram

Fig. 3 is the utility model transmission speed reducer structure schematic perspective view

Fig. 4 is the utility model transmission speed reducer structure shaft structural representation

Fig. 5 is output shaft structural representation of the present utility model

Fig. 6 is input shaft structure schematic diagram of the present utility model

Embodiment

How existing accompanying drawings the utility model is implemented:

A kind of cam of the utility model and gear associating gearing speed-reducer, formed by casing and associating transmission speed reducer structure, described associating transmission speed reducer structure is made up of cylindrical cam input shaft, roller disk shaft, output shaft and a pair of large small gear engagement pair, be arranged in casing X, cylindrical cam input shaft N is horizontally disposed with, roller disk Chinese style rotating shaft M is made up of shaft M1 and roller disk M2, shaft M1 is connected with roller disk M2 key by the keyway M0 of axle body, and shaft M1 upper end is connected with small gear 7 by spline M5; Described output shaft E vertically arranges, and output shaft E axle body is connected with gearwheel 8 by spline E1; Roller disk shaft M engages with the conjugation that the wide face of cylindrical cam N2 is two sides, space curved surface by the cylindrical roller M3 curved surface of the roller disk M2 circumference of its axle body,, engages with the gearwheel 8 of output shaft E axle by the small gear 7 of its end meanwhile; The input end of described cylindrical cam input shaft N1 is connected with motor outside case by positioning bearing N4, and described output shaft E output terminal provides reducer output shaft end by positioning bearing E2 outward at case.

Described cylindrical cam input shaft N, is made up of input shaft N1 and cylindrical cam N2, and input shaft N1 axle body is connected with cylindrical cam N2 key by two keyway N3.

Described roller disk M2 even circumferential distribution cylindrical roller M3, is connected with disk M2 by the tapered roller bearing M4 arranging back-to-back.

The axle center of described small gear 7, gearwheel 9 is equipped with spline keyway.

Described output shaft output terminal is provided with connection spline.

Described casing X is designed with breather X1.

The utility model is in the time of work, first motor by and input shaft N1 between spline 21 connecting band driven input shaft N1 rotate, on input shaft N1 axle body, cylindrical cam N2 also will rotate thereupon, the contoured surface of cylindrical cam N2 contacts with the cylindrical roller curved surface on rotary disk M2, when cylindrical cam M2 rotates, cylindrical roller M3 is forced to roll on cam profile, cylindrical roller M3 is around self axis rotation simultaneously, the rotary disk M2 being connected by tapered roller bearing M4 with cylindrical roller M3 is also by the rotation producing around self circumferencial direction, the shaft M1 being connected with rotary disk M2 produces the rotation around axial direction, the small gear 7 that is connected to shaft M1 also will rotate, the gearwheel 8 engaging with small gear 8 also will rotate, the output shaft E being connected with gearwheel 8 by spline rotates, output shaft is the axle head that outputs power of the present utility model by stretching out the output shaft end of casing outside, output shaft end has spline E3.

Claims

1. a cam and gear associating gearing speed-reducer, it is characterized in that, formed by casing and associating transmission speed reducer structure, described associating transmission speed reducer structure is made up of cylindrical cam input shaft, roller disk shaft, output shaft and a pair of large small gear engagement pair, be arranged in casing, roller disk shaft is made up of shaft and roller disk, and shaft is connected with roller disk key by the keyway of axle body, and shaft upper end is connected with small gear by spline; Described output shaft axle body is connected with gearwheel by spline; Roller disk shaft engages with the conjugation that the wide face of cylindrical cam is two sides, space curved surface by the cylindrical roller curved surface of the roller disk circumference of its axle body, and the small gear of its end engages with the gearwheel of output shaft; The input end of described cylindrical cam input shaft is connected with motor outside case by positioning bearing, and described output shaft output terminal provides reducer output shaft end by positioning bearing outward at case.

2. a kind of cam according to claim 1 and gear associating gearing speed-reducer, is characterized in that, cylindrical cam input shaft is made up of input shaft and cylindrical cam, and input shaft axle body is connected with cylindrical cam key by two keyways.

3. a kind of cam according to claim 1 and gear associating gearing speed-reducer, is characterized in that, the roller disk circumference of roller disk shaft is uniformly distributed cylindrical roller, is connected with disk by tapered roller bearing.

4. a kind of cam according to claim 1 and gear associating gearing speed-reducer, is characterized in that, the axle center of small gear, gearwheel is equipped with spline keyway.

5. a kind of cam according to claim 1 and gear associating gearing speed-reducer, is characterized in that, output shaft output terminal is provided with connection spline.

6. a kind of cam according to claim 1 and gear associating gearing speed-reducer, is characterized in that, cabinet design has breather.