CN2035024U - Multi-function integrated automatically-compressed friction gearing - Google Patents

Abstract

The utility model relates to a multi-function integrated automatically-compressed friction gearing device. The utility model is the multi-function integrated automatically-compressed friction gearing device which is applied to the field of a mechanical driving. The multi-function integrated automatically-compressed friction gearing device mainly comprises two symmetrical floating type integrated automatically-compressed friction gearing devices. The floating type integrated automatically-compressed friction gearing devices have the multifunction characteristics of floating tracking momentary continuous contact automatic compacting, automatic regulating the sizes of normal force by loads, symmetrical contacting inward and outward, positive pressure balance driving, single machine unidirection, momentary bidirectional (positive and opposite direction) driving, flexible various patterns of driving combination, convenient maintaining and regulating, reliable operation, etc. So the friction gearing device can achieve a better ideal, perfect and uniform effect in structure and function.

Description

Multi-function integrated automatically-compressed friction gearing

The utility model belongs to a kind of mechanical transmission, particularly a kind of autocompact friction gearing.

In the existing mechanical transmission device, the mode that compresses of friction driving all can be reduced to situation shown in Figure 1.Among the figure, wheel (1 ₁ ¹) and wheel (2 ₁ ¹) between be friction driving, and respectively with speed n ₁ ⁰And n ₂ ⁰Rotate, this compresses mode and relies on wheel (1 ₁ ¹) on plus load Q produce normal direction impacting force N ₁ ⁰(N ₂ ⁰), or roller (1 ₁ ¹) deadweight produce the normal direction impacting force.This deficiency that compresses mode is that its impacting force can not automatically regulate with the variation of external load, must often regulate artificially, and in vertical driving mechanism, wheel (1 ₁ ¹) because deadweight has lost the effect that produces impacting force.

The purpose of this utility model is in order to improve the mode that compresses of above-mentioned friction driving, provide a kind of realize floating follow the tracks of, instantaneous Continuous Contact compresses automatically, and regulates the multi-functional integrated autocompact friction gearing that normal direction compresses size automatically according to load.

Realization of the present utility model is mainly integrated by the floating type automatic pressing friction driving mechanism of two symmetries, and be provided with the level Four transmission and this device had float to follow the tracks of instantaneous Continuous Contact to compress automatically and regulate the normal force size automatically by load, interior external symmetry contact, drive positive pressure balance, unit unidirectional, instantaneous two-way (positive and negative direction) transmission, transmission combination form are versatile and flexible, adjust multi-functional characteristics such as running easy to maintenance is reliable, make friction gearing on 26S Proteasome Structure and Function, obtain more satisfactory perfect unified effect.

Describe the utility model in detail below in conjunction with accompanying drawing

Fig. 1 is the mode that compresses in the existing friction driving;

Fig. 2 is the utility model actuator system schematic front view;

Fig. 3 is the utility model actuator system diagrammatic top view;

Fig. 4 is transmission principle figure of the present utility model;

Fig. 5 is structure master's pseudosection of the present utility model;

Fig. 6 is this; The structure side pseudosection of model utility.

In Fig. 2 and 3, carry out engagement driving by motor (8) (or connecing other speed changers) driving worm screw (10) and worm gear (12), this is first order transmission; Being installed in the coaxial cone gear of worm gear (12) (7) and (7 ') carries out engagement driving with cone gear (6) and (6 ') respectively this is second level transmission; Be installed in cone gear (6) and (6 ') coaxial cylindrical gears (4) and (4 ') and carry out engagement driving with cylindrical gears (3) and (3 ') respectively, this is third level transmission; Be installed in cylindrical gears (3) and carry out friction driving with the wheel interior outer contacting of (1) (driven workpiece) (Figure 2 shows that and separate contactless state) simultaneously with (2 '), then constitute fourth stage transmission with (3 ') coaxial friction wheel (2).Wheel (1) is gone up at supporting roller (9) and is rotated.(5), (5 ') be floating bracket, (11) are casing.

Among Fig. 4, wheel (1) is around axle center O ₁Rotate, friction wheel (2) and (2 ') can be respectively around axle center O ₄And O ₄' rotate, simultaneously can be around self axle center O ₃And O ₃' rotate.Diagram friction wheel (2) and (2 ') (solid line position) compresses automatically with wheel (1) outer contacting in the P point symmetry simultaneously, as normal direction impacting force N greatly to certain value enough in overcoming tangential working resistance (being load) F ₁Equal the tangential driving force F of wheel (2) and (2 ') to wheel (1) ₂The time, then wheel (2) and (2 ') is with n ₂And n ₂' (n ₂=n ₂') sense of rotation driving wheel (1) is with n ₁Direction is rotated, and is N=N ' and take turns that (1) be subjected to taking turns (2) and (2 ') at point of contact P place drive positive pressure balances each other.If wheel (2) and (2 ') is respectively around O ₄And O ₄' turn to double dot dash line to take turns (2 ₁) (O ' ₃) and (2 ₁') (O ' _{3 '}) position the wheel (1) P ₁The point place contacts electric current commutation, at this moment N ₁=N ₁', wheel (2 ₁) and (2 ₁') respectively with n ₂' and n ' _{2 '}Sense of rotation driving wheel (1) is with n ₁' direction (is n ₁Opposite direction) rotate.If among Fig. 3, by wheel (2) (O ₃) position and wheel (2 ₁') (O ' _{3 '}) position grouping, respectively with the P and the P that take turns (1) ₁Outer contacting in the point can instantaneous realization be taken turns two-way (forward and backward) transmission of (1), and promptly wheel (2) is with n ₂Direction rotating drive wheel (1) is with n ₁Direction is rotated, and takes turns (2 ₁') be in the off working state rotation with wheel (1); During the electric current commutation, wheel (2 ₁') entering working state, wheel (2) is in off working state.Also can by the wheel (2 ') (O ' ₃) and wheel (2 ₁) (O ₃') position realizes instantaneous two-way transmission.In addition can be by wheel (2), (2 ₁), (2 ') and (2 ₁') arbitrary position single driving wheel (1) rotate.Here it is multi-functional basic characteristics and principle that the utility model had.

In Fig. 5 and Fig. 6, (11) are casing, and (25) and (25 ') and (34) are window (installation) lid.(10) be and the joining input worm shaft of motor (8) (or other speed changers), support by garden taper roller bearing (13), drive worm gear (12) and rotate, (28) are the gland of the bearing (13) of band sealing, and (29) are pressure (vexed) lid of bearing (13 ').The two ends of worm-wheel shaft (31) are installed bevel gear (7) and (7 ') and are driven bevel gear (6) and (6 ') rotation respectively.Worm-wheel shaft (31) is by tapered roller bearing (32) and (32 ') supporting, and (30) and (30 ') are bearing gland.Bevel gear (6) on the axle (24) and (24 ') and (6 ') are respectively by tapered roller bearing (23) and (23 ') supporting, (27) and (27 ') be bearing race, (33), (26), (33 ') and (26 ') are that bearing is pressed (vexed) lid.(5a) and (5a ') is supporting disk, and (5b) and (5b ') is the pivoted arm tube, and (5c) and (5c ') is the arm lid, and (5d) and (5d ') is Returnning spring.Having formed respectively by above-mentioned four can (be O around axle (24) and (24 ') ₄And O ₄' axle center) Bai Dong floating bracket (5) and (5 ').Follow the tracks of instantaneous Continuous Contact for making wheel (2) and (2 ') and wheel (1) keep floating, connect with Returnning spring (5d) and (5d ') respectively with between pivoted arm angle (5b) and (5b ') at supporting disk (5a) and (5a ').Cylindrical gears (4) and (4 ') are installed in the top of axle (24) and (24 ') respectively, by sliding bearing (21), (22) and (21 '), (22 ') supporting.Gear (4) and (4 ') respectively be installed in cylindrical gears (3) and (3 ') of axle on (20) and (20 ') and be meshed.Axle (20) and (20 ') is made radial support by sliding bearing (15), (17) and (15 '), (17 ') respectively, makes gap compensation radial support by single-row radial ball bearing (14) and (14 '), and (16) and (16 ') are thrust ball bearing.Wheel (2) and (2 ') is installed in the upper end of axle (20) and (20 ') respectively, by locking nut (18) and (18 ') locking.The outer cause ebonite of wheel (2) and (2 ') is made.Forced filling oil cup (19) and (19 ') are equipped with in top in axle (24), (24 ') and (20), (20 '), and for each bearing in the floating bracket and gear pressure injection butter usefulness, each bearing and gear can be used oil lubricating in the casing.

The utility model can adopt multimachine to make up symmetrical mounting arrangements to come driving wheel (1) according to actual needs. It is particularly useful for driving large-sized object (comprise revolution and reciprocating part) backspin turns to dining room, revolving stage, astronomical observation cover, recreation ground and turns to tool etc. It has obtained desirable perfect unified effect at 26S Proteasome Structure and Function.

Claims (1)

1, a kind of multi-functional integrated autocompact friction gearing, it is characterized in that it is provided with the level Four transmission, the worm screw (10) that constitutes first order transmission connects motor (8), mesh with worm gear (12), the cone gear (7) and (7 ') that constitute second level transmission are coaxial with pot wheel (12), respectively with cone gear (6) and (6 ') engagement, the cylindrical gears (4) and (4 ') that constitute third level transmission are coaxial with cone gear (6) and (6 '), respectively with cylindrical gears (3) and (3 ') engagement, the friction wheel (2) and (2 ') that constitute fourth stage transmission are coaxial with cylindrical gears (3) and (3 '), with the interior outer contacting of wheel (1) (being driven part), it also is provided with floating bracket (5) and (5 ') of symmetrical distribution simultaneously, gear (4), (3) and (4 '), (3 ') are installed in respectively can be around axle (24), (24) Bai Dong floating bracket (5), in (5 '), gear (3) is installed in respectively on the same axle (20) and (20 ') with wheel (2 ') with wheel (2) and gear (3 '); Floating bracket (5), (5 ') comprise supporting disk (5a), (5a '), pivoted arm tube (5b), (5b '), arm lid (5c), (5c '), Returnning spring (5d), (5d '), supporting disk (5a), (5a ') are installed in the bottom of pivoted arm tube (5b), (5b '), with Returnning spring (5d), (5d ') connects between supporting disk and the pivoted arm tube.Arm lid (5c), (5c ') are installed in the top of pivoted arm tube.

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