CN2677697Y

CN2677697Y - One-way non-contact brake and clutch

Info

Publication number: CN2677697Y
Application number: CN 200420032621
Authority: CN
Inventors: 吴亚键
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-15
Filing date: 2004-01-15
Publication date: 2005-02-09
Anticipated expiration: 2014-01-15

Abstract

The utility model relates to a one-way non-contact brake and clutch, which is that a braking device (3) is provided between a shaft sleeve (1) and an outer sleeve (2); both ends of the braking device are provided with bearings (6) which supporting and holding the outer sleeve; both end surfaces of the bearing are respectively fixed by an end cap (7) and a fixed plate (8) via a bolt (11); the braking device contains two circular fixed plates (13), a convex block (12) and a spring (5); the convex block is clamped between the two circular fixed plates via a bolt (14); the convex block is hung with a trepan boring (16) arranged on the circular fixed plate via the symmetrical hanging shafts (15) of the convex block; one end of the spring is sheathed on the hanging shaft (15), and the other end of the spring is fixed on the bolt (14) on the circular fixed plate. The brake accessory of the one-way non-contact brake and clutch is not easy to generate the abrasion, and has prolonging service life, small volume, low noise, and extremely convenient installation and maintenance.

Description

Unidirectional non-contact braking and clutch

Technical field

The utility model belongs to mechanical braking and clutch technical field.

Background technique

Existing mechanical braking and engaging and disengaging gear, in particular for conveying, the break of gearing, clutch, what adopt usually is the pawl type break, or the contact roller post brake, and the deficiency of these two kinds of devices is: ratchet, the ratchet of pawl type break are easy to generate metal fatigue and rupture, quick abrasion, working life is short, and accessory is changed frequent, and the hot-tempered sound that turns round is big, volume is also big, causes the installation, maintenance difficulty; The roller of contact roller post brake produces friction with housing, axle sleeve because of contacting, and often causes roller, housing, axle sleeve uneven wear and scraps, and makes accessory often need change, the cost height, and after the braking failure, equipment accident is serious, be difficult to maintenance, difficulty is installed.

Summary of the invention

The purpose of this utility model provide in order to overcome the deficiency that above-mentioned prior art exists just a kind of accessory do not produce wearing and tearing, long service life, little, the hot-tempered sound of volume low, be easy to unidirectional non-contact braking and the clutch installing and keep in repair.

The purpose of this utility model is achieved by the following technical solution.

This unidirectional non-contact braking and clutch are to be provided with a braking device between axle sleeve and overcoat, are provided with bearing at the two ends of braking device, and overcoat passes through bolt by end cap and fixed plate by the bearing holding respectively in the both ends of the surface of bearing; Braking device includes two annular fixed plates, convex piece and spring, two annular fixed plates are clipped in the convex piece wherein by bolt, the convex piece by himself symmetry hanging scroll and annular fixed plate on the trepanning offered articulate, spring one end is socketed on the convex piece hanging scroll, and the other end is fixed on the bolt shank on the annular fixed plate.

Described convex piece is the cammingly structure of its center of gravity of axis deviation.

When main frame is in outage state; the convex piece is at the moment loading of torsion spring; all the time keep closely contacting with axle sleeve and overcoat; the reversing and the driving that stop boss rod; when braking device was rotated in the forward with axle sleeve, the convex piece in the braking device had overcome the moment of torsion spring under action of centrifugal force; make contacting of its disengaging and axle sleeve and overcoat, under no Frotteurism, remain the forward operation with boss rod.

The difficult generation wearing and tearing of braking accessory of the present utility model, working life prolong, little, the hot-tempered sound of volume is low, ten minutes is easy for installation and maintenance.

Further set forth content of the present utility model below in conjunction with Figure of description and embodiment.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is annular fixed plate schematic representation;

Fig. 4 is the side view of Fig. 3.

Embodiment

Axle sleeve 1 is installed on the axle of main frame by flat key, is contained in 6 holdings of the dish of two on the axle sleeve 1 single face stuffing box bearing and overcoat 2, and braking device 3 is installed between axle sleeve 1 and the overcoat 2, and the both ends of the surface of braking device 3 are fixed by bolt 11 by end cap 7 and fixed plate 8 respectively.Braking device 3 includes two annular fixed plates 13 and several convex pieces 12 and spring 5, convex piece 12 is one through being out of shape the cammingly structure of axis deviation center of gravity slightly, it hangs on the annular fixed plate by the hanging scroll 15 of going up symmetry outside himself, the other end is wrapped on the hanging scroll 15 of convex piece 12, spring 5 is symmetricly set in two gaps that form between annular fixed plate 13 and the convex piece 12, the one end is wrapped on the hanging scroll 15 on the convex piece, and the other end is fixed on the bolt 14 on the annular fixed plate.Be provided with spacer ring 9 between braking device 3 and the bearing 6.In the time the utility model will being installed on the boss rod 17, need fixed plate 8 is fixed on the frame by bearing pin 10, to keep overcoat relative with frame motionless, when axle sleeve 1 turned round with boss rod 17, braking device 3 was maintained fixed with axle sleeve 1 by pin 4 and moves.Convex piece 12 on the braking device 3 is distributed on the annular fixed plate 13 interior side ring surfaces, is generally 3～12.When main frame is in outage state; convex piece 12 is under the moment loading of torsion spring 5; all the time keep closely contacting with overcoat 2 with axle sleeve 1; the reversing and the driving that stop boss rod 17; when braking device 3 was rotated in the forward with axle sleeve 1, the convex piece 12 in the braking device had overcome the moment of torsion spring 5 under action of centrifugal force; it is broken away from and the contacting of axle sleeve 1 and overcoat 2, under no Frotteurism, remain forward and move with boss rod 17.

Claims

1, unidirectional non-contact braking and clutch, the device that relates to a kind of mechanical braking and clutch, it includes the axle sleeve (1) and an overcoat (2) of a socket rotating shaft, it is characterized in that between axle sleeve (1) and overcoat (2), being provided with a braking device (3), be provided with bearing (6) at the two ends of braking device (3), overcoat (2) is by bearing (6) holding, and is fixing by bolt (11) by end cap (7) and fixed plate (8) respectively in the both ends of the surface of bearing (6); Braking device (3) includes two annular fixed plates (13), convex piece (12) and spring (5), two annular fixed plates are clipped in convex piece (12) wherein by bolt (14), the trepanning of offering on the hanging scroll (15) of convex piece (12) by himself symmetry and the annular fixed plate (13) (16) articulates, spring (5) one ends are socketed on the hanging scroll (15), and the other end is fixed on the bolt (14).

2, unidirectional non-contact braking according to claim 1 and clutch is characterized in that convex piece (12) is the cammingly structure of its center of gravity of axis deviation.