CN105889368A

CN105889368A - Novel roller-type mechanical brake

Info

Publication number: CN105889368A
Application number: CN201410545081.3A
Authority: CN
Inventors: 陈伯恒
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-09-29
Filing date: 2014-09-29
Publication date: 2016-08-24

Abstract

The invention provides a novel roller-type mechanical brake. The mechanism is provided with a roller-type mechanical brake mechanism. The mechanical brake is characterized by comprising a spring lifting pin mechanism which can support a roller (14) to a declutching direction, wherein the spring lifting pin mechanism is installed at the outer side of a roller working position of an outer star wheel (21) and the roller (14) is in touch with the roller working position when braking is performed.

Description

New-type roller mechanical brake

One, technical field

The present invention is belonging to a kind of New-type roller mechanical brake in mechanical brake field.

Two, background technology

It is known that in mechanical field, brake is a very important mechanical part, and it is extensive It is applied among each machinery industry.As a example by industry brake field, the importance of brake be aobvious and It is clear to.

But, we, it is also known that currently used brake, are almost machinery face friction-type , both utilized the fricative braking moment rotated between element and retaining element two working surface to make automobile Slow down or stop.It can be seen that this mode of braking use that major problem is that braking member Life-span is the most comparatively short, needs to change frequently, so, it is very inconvenient comparatively speaking.

Recently, the technical scheme of a kind of brand-new roller type mechanical brake, its patent name are occurred in that For: a kind of roller type mechanical brake, Patent No.: 200910019842.0.Authorization Notice No. is: CN 101832349B), this original patented technology can be widely used for various automotive brake and industry Brake, has the strongest replacement ability to traditional brake product.

But, technique scheme there is also some problems, it is simply that owing to product is belonging to brake neck Territory, during work typically just need braking in the case of braking member just do of short duration work, other time Between mechanism's simply idle running, so from the angle consider of practicality and production cost, typically it sets Meter and accuracy of manufacture ratio relatively are relatively low, and generally, its accuracy of manufacture is far below traditional surmounting Clutch, so, arises that a problem, such as: in the fabrication process, when on out star wheel Roller work surface when reaching to a certain degree relative to the parallelism error of longitudinal center line own, at needs During braking, owing to the two ends of at this moment roller can not contact when contacting with out star wheel roller work surface simultaneously, Can only first contact one end, the then other end the most progressively wedging, in the case of error is not too big, this Although situation the most do not affect entirety braking operation, but operationally, when mechanism is in non-brake Idle running operating mode time, occur that indivedual roller blocks suddenly the phenomenon disengaged the most again, thus the most once in a while Have impact on the work quality of this mechanism, reduce the reliability of work.

Three, summary of the invention

The purpose of the present invention is to propose to one and can improve above-mentioned one to a certain degree lower in these cases The principle technical side of the New-type roller mechanical brake of the reliability of roller type mechanical brake work Case.

The present invention is achieved in that in mechanism have a kind of roller type mechanical brake mechanism, its feature It is: the outside at roller working position contacted with roller 14 during braking on out star wheel 21, installs Roller 14 can be pushed up the spring knock pin mechanism to disengaged direction by one group.

Spring knock pin mechanism often organizes and typically can be made up of two little ejector pins 19 and little spring 20, can pacify respectively The outside at roller working position contacted with roller 14 when being mounted at the braking on out star wheel 21 is near extraterrestrial Take turns on the position of 21 both ends of the surface.

Spring knock pin mechanism is made up of little ejector pin 19 and little spring 20, and outer end is that the inner of Surface of Sphere is shaped with In the hole of the little ejector pin of cylinder 19 of blind hole, it is more than the little bullet of its blind hole depth equipped with its drift Spring 20.

During specific works, out star wheel 21 fixes be connected with the equipment rack needing braking, internal ring 1 with set It is coaxially connected that the standby axle needing braking fixes, and does not has External Force Acting owing at this moment controlling ring 9, so Being under the effect of back-moving spring 16 at non-brake state position, the biggest ejector pin 11 is at big spring 10 Enter in the groove controlling to be shaped with in ring 9 inner circle under effect, due at this moment big spring 10 length relatively Short, so at this moment big spring 10 is in the state being totally released, and there is certain gap, so this Time jacking mechanism unclamp, therefore, under the reverse assosting effect of little ejector pin 19 and little spring 20, rolling At this moment post 14 is in reliable disengaged condition, so at this moment internal ring 1 is can be freely rotatable 's.Even it can be seen that at this moment mechanism has bigger foozle, roller 14 also not to have card Phenomenon.When needs are braked, by external force drive control ring 9 do partial rotational, at this moment, big ejector pin 11 by In control the reason that ring 9 rotates depart from the groove controlling to be shaped with in ring 9 inner circle and be forced along mechanism radial direction to Move in direction, the center of circle so that big spring 10 entrance impaction state progressively, thus cause backing plate 12 and compress Roller 13 moves along the radial direction of mechanism to circle centre position together, owing to the thrust of at this moment big spring 10 is much larger than The thrust of little spring 20, so, roller 14 is held out against in operating position by mechanism by compressing roller 13 On, at this moment, mechanism enters on-position.

Mechanism's reliability of operation can be improved in any case to a certain extent due to the present invention, so The effect that comparison is positive can be received after enforcement.

Four, accompanying drawing explanation

The present invention has 4 accompanying drawings, and Fig. 1 is the basic principle schematic of New-type roller mechanical brake, figure 2 is the partial enlarged drawing being labeled as B of Fig. 1, and Fig. 3 is the A-A sectional view of Fig. 1, and Fig. 4 is the labelling of Fig. 3 Partial enlarged drawing for A.

In the various figures: 1, internal ring, 2, oil sealing, 3, back-up ring, 4, bearing, 5, screw, 6, roller Back-up ring, 7, screw, 8, O, 9, control ring, 10, big spring, 11, big ejector pin, 12, pad Plate, 13, compress roller, 14, roller, 15, back-up ring, 16, back-moving spring, 17, baffle ring, 18, O, 19, little ejector pin, 20, little spring, 21, out star wheel.

Five, detailed description of the invention

Below, in conjunction with Figure of description, the present invention is described in further detail.

In conjunction with each accompanying drawing, it can be seen that have a kind of roller type mechanical brake mechanism in mechanism, it is special Levy and be: the outside at roller working position contacted with roller 14 during braking on out star wheel 21, peace Fill one group and roller 14 can be pushed up the spring knock pin mechanism to disengaged direction.

Spring knock pin mechanism often organizes the quantity of ejector pin and can also use flexibly according to different situations, ordinary circumstance Under, often group can be made up of two little ejector pins 19 and two little springs 20, can be separately mounted at out star wheel The outside at roller working position contacted with roller 14 during braking on 21 is near out star wheel 21 both ends of the surface On position.As long as its effect can play when mechanism is for non-brake state one auxiliary by roller 14 Push up the most permissible to disengaged position, so the structure of spring knock pin mechanism and mounting means should when specific design When grasping flexibly, generally can make inside the both ends of the surface at out star wheel 21 with roller 14 corresponding position Two blind holes are by the inner loading of spring knock pin mechanism, or make two shapes and spring knock pin in end Groove that mechanism's shape is corresponding also loads spring knock pin mechanism, wherein then by roller back-up ring 6 by it It is limited on operating position.

Little spring 20 should keep a pressure to little ejector pin, but owing to being assosting effect, so this pressure Power is generally smaller, generally had better not be more than 1 kilogram, and pressure is the biggest on the contrary can Play side effect.

In conjunction with accompanying drawing embodiment it can be seen that wherein, the effect of two bearings 4 is to play support out star wheel 21 with the effect of internal ring 1, make the two can do coaxial relatively rotating, be in two gears outside two bearings 4 The effect of circle 3 is to ensure that the axial location of bearing 4, and the effect of two oil sealings 2 is to ensure that lubricating oil will not leak Going out, screw 5 is used to be fixed on out star wheel 21 in the frame being braked machinery, the work of roller back-up ring 6 With being to limit roller 14 and the axial location of bearing 4, screw 7 is an oiling with the position of O Hole, can refuel and drain the oil, by external force partial rotational control ring 9 can play make mechanism be in braking with The purpose of non-brake state, after big ejector pin 11, big spring 10, backing plate 12, compression roller 13 are arranged in order Effect be the effect played and compress roller 14 when controlling ring 9 and being in application position, the effect of back-up ring 15 Being the axial location limiting baffle ring 17, the effect of back-moving spring 16 acts on control ring 9 when releasing Making control ring 9 self-return to the position of non-brake state after external force, the effect of O 18 is to make control ring The position of 9 will not leakage of oil, the effect after little ejector pin 19 and little spring 20 combine is to be in non-when controlling ring 9 During on-position position, roller 14 is pushed up to inactive position.

Claims

1. a New-type roller mechanical brake, has a kind of roller type mechanical brake machine in mechanism Structure, it is characterised in that: the roller work contacted with roller (14) during braking on out star wheel (21) The outside at position, installing one group can be by roller (14) top to the spring knock pin mechanism of disengaged direction.

Novel roller mechanical brake the most according to claim 1, it is characterised in that: spring knock pin Mechanism's often group is made up of two little ejector pins (19) and little spring (20), is separately mounted at out star wheel (21) outside at roller working position contacted with roller (14) during braking on is near out star wheel (21) on the position of both ends of the surface.

Novel roller mechanical brake the most according to claim 1, it is characterised in that: outer end is The inner of Surface of Sphere is shaped with in the hole of the little ejector pin of cylinder (19) of blind hole, equipped with its drift Little spring (20) more than its blind hole depth.