CN205315551U

CN205315551U - Spiral meshing isolator

Info

Publication number: CN205315551U
Application number: CN201520993930.1U
Authority: CN
Inventors: 游宏亮
Original assignee: Chongqing Huayang Isolator Manufacturing Co Ltd
Current assignee: Chongqing Huayang Isolator Manufacturing Co Ltd
Priority date: 2015-12-05
Filing date: 2015-12-05
Publication date: 2016-06-15
Anticipated expiration: 2025-12-05

Abstract

The utility model discloses a spiral meshing isolator, spiral meshing isolator includes overcoat, separation and reunion cover and spiral inner core and end cover, the overcoat center is provided with the shoulder hole, and separation and reunion cover cartridge is in the macropore of shoulder hole, and the separation and reunion cover is connected with the overcoat rotation, be provided with spiral groove on the pore wall in the less hole of shoulder hole, the middle section of spiral inner core also is provided with the spiral bulge loop, and the spiral bulge loop cooperatees with spiral groove, the right -hand member of spiral inner core and overcoat rotate to be connected, the left end and the splined connection of separation and reunion cover of spiral inner core, and the spiral inner core can also overlap the slip for overcoat and separation and reunion when rotating for the overcoat, on the spiral inner core still the cover be equipped with the spring, and have on the spiral inner core with spiral inner core integrated into one piece's spring limiting convex ring, the one end roof pressure of spring is on spring limiting convex ring, spring other end roof pressure is sheathe in the separation and reunion, this isolator neither the phenomenon of skidding can appear, and bearing capacity is also higher.

Description

A kind of luer engages with isolator

Technical field

This utility model relates to a kind of isolator, particularly relates to a kind of luer engages with isolator.

Background technology

When automobile engine starting, first being driven the flywheel turns of electromotor by starter, then electromotor could start; But after engine ignition starts, the rotating speed of its flywheel can surmount rapidly the rotating speed of starter motor, the drive starter motor reverse in order to avoid electromotor rotates, therefore between electromotor and starter, it is provided with isolator, it is again freewheel clutch, therefore, exceed the rotating speed of starter motor at the rotating speed of electromotor after, isolator is by separated, thus avoiding driven by engine starter motor to rotate.

Also isolator can be used when gearshift, when by top gear shift to low gear, high gear has just been departed from due to output shaft, so output shaft still has a higher rotating speed, therefore after output shaft is connected with low-speed gear, make output shaft and low-speed gear have an identical speed to be accomplished by output shaft and have a moderating process, otherwise output shaft will reversely drive low-speed gear to rotate, or make low-speed gear occur beating tooth phenomenon, impact thus gear is formed, make gear damaged rapidly, therefore in electric motor car, it is also provided with isolator, prevent output shaft from reversely driving low-speed gear.

Therefore isolator is widely used, and existing isolator mostly is voussoir isolator and ratchet isolator; Voussoir isolator is the effect being realized one-way clutch by voussoir wedging overcoat and inner ring, is therefore make overcoat drive inner ring to rotate by frictional force, so voussoir and overcoat often there will be the phenomenon of skidding, so that overcoat cannot drive inner ring to rotate; And the ratchet of ratchet isolator is usually hinged and coordinates with the ratchet at center on the coat, owing to the size of ratchet He its jointed shaft is all limited, therefore bearing capacity is more weak.

Utility model content

This utility model is intended to provide a kind of luer engages with isolator so that it is can overcome skidding, carry simultaneously and also can be improved.

Base case luer engages with isolator of the present utility model, including overcoat, clutch cover and spiral inner core and end cap; Described overcoat is provided centrally with shoulder hole, and described clutch cover is inserted in the macropore of shoulder hole, and clutch cover and overcoat are rotationally connected; Being provided with helical groove on the hole wall in the hole that described shoulder hole is less, the stage casing of described spiral inner core is also equipped with spiral bulge loop, and spiral bulge loop matches with helical groove; The right-hand member of described spiral inner core and overcoat are rotationally connected, and the left end of spiral inner core is connected with clutch cover spline, and can also slide relative to overcoat and clutch cover when spiral inner core rotates relative to overcoat; Also being arranged with spring on described spiral inner core, and have spring retainer bulge loop integrated with spiral inner core on spiral inner core, the top, one end of spring is pressed on spring retainer bulge loop, and spring other end top is pressed on described clutch cover; End cap is inserted in from clutch cover end, and fixes on the coat.

In this base case, overcoat is fixing with low-speed gear to be connected, and clutch cover also connects with output axle key.When low-speed gear drives overcoat to rotate, and the rotating speed of output shaft lower than the rotating speed of low-speed gear time, then the rotating speed of overcoat will be above the rotating speed of spiral inner core, after helical groove coordinates with spiral bulge loop, overcoat will drive spiral inner core to move to right, until spiral inner core is stuck with overcoat, then overcoat will drive spiral inner core to rotate, and drive clutch cover is also rotated thus driving output shaft rotation by spiral inner core simultaneously. After the rotating speed of output shaft is higher than the rotating speed of low-speed gear, then output shaft will drive clutch cover to rotate, thus driving spiral inner core to rotate, and now owing to the rotating speed of spiral inner core is higher than the rotating speed of overcoat, then the spiral bulge loop of spiral inner core will screw out from the helical groove of overcoat, then spiral inner core can not drive overcoat to rotate, thus reaching the purpose of one-way clutch.

In this programme, end cap has the effect that clutch cover is spacing, it is prevented that clutch cover is deviate from overcoat; Inner core top is pressed to overcoat by spring, is conducive to spiral bulge loop to be screwed in helical groove so that this isolator does not have the situation of inefficacy; But spiral bulge loop and helical groove not only have the effect of clutch, also having the effect that spline connects, therefore this isolator does not have skidding, and bearing capacity is also better simultaneously.

Preferred version one, as the further optimization to base case, is provided with bearing between described overcoat and clutch cover; Set up between overcoat and clutch cover, it is possible to reduce friction, thus the abrasion reduced between overcoat and clutch cover.

Preferred version two, as the further optimization to base case, described end cap is fixing on the coat by circumferential equally distributed screw; End cap is fixed with by screw and is beneficial to dismounting, thus being conducive to replacing or the repairing of zero year.

Preferred version three, as the further optimization to base case, described spiral bulge loop, helical groove are provided with two; Increasing the quantity of spiral bulge loop and helical groove, can increase the bearing capacity of spiral inner core, but the quantity of spiral bulge loop is too much, the frictional force of spiral inner core and overcoat will increase, and therefore the response of spiral inner core will be slack-off.

Preferred version four, as the further optimization to base case, described spiral bulge loop, helical groove the spiral number of turns be only a circle; This optimization advantageously reduces friction, also can make moving horizontally apart from less thus improving response of spiral inner core simultaneously.

Accompanying drawing explanation

Fig. 1 is the installation diagram of luer engages with isolator embodiment.

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: overcoat 1, clutch cover 2, spiral inner core 3, end cap 4, low-speed gear 5, output shaft 6, spring 7, bearing 8.

Embodiment is substantially as shown in Figure 1: luer engages with isolator includes overcoat 1, clutch cover 2 and spiral inner core 3 and end cap 4; Wherein overcoat 1 is provided centrally with shoulder hole, and clutch cover 2 is inserted in the macropore of shoulder hole so that clutch cover 2 and overcoat 1 are rotationally connected, and are provided with bearing 8 between overcoat 1 and clutch cover 2, to reduce friction; Being provided with two helical grooves on the hole wall in the hole that the shoulder hole at overcoat 1 center is less, the stage casing of spiral inner core 3 is also equipped with two spiral bulge loops, and spiral bulge loop coordinates with helical groove, additionally spiral bulge loop, helical groove the spiral number of turns be all only a circle; And the right-hand member of spiral inner core 3 and overcoat 1 are rotationally connected, the left end of spiral inner core 3 is connected with clutch cover 2 spline, and spiral inner core 3 can also slide relative to overcoat 1 and clutch cover 2 when rotating simultaneously;Also being arranged with spring 7 on spiral inner core 3, spiral inner core 3 also has spring retainer bulge loop integrated with spiral inner core 3, and the top, one end of spring 7 is pressed on spring retainer bulge loop, other end top is pressed on clutch cover 2.

As it is shown in figure 1, end cap 4 is inserted in from clutch cover 2 end, and it is fixed on overcoat 1 by circumferential equally distributed screw, so that clutch cover 2 is spacing; Additionally overcoat 1 and low-speed gear 5 are bolted to connection, and clutch cover 2 also connects with output shaft 6 spline.

As shown in Figure 1, when low-speed gear 5 drives overcoat 1 to rotate, and the rotating speed of output shaft 6 lower than the rotating speed of low-speed gear 5 time, then the rotating speed of overcoat 1 will be above the rotating speed of spiral inner core 3, after helical groove coordinates with spiral bulge loop, overcoat 1 will drive spiral inner core 3 to move to right, until spiral inner core 3 is stuck with overcoat 1, then overcoat 1 will drive spiral inner core 3 to rotate, and drive clutch cover 2 is also rotated thus driving output shaft 6 to rotate by spiral inner core 3 simultaneously. After the rotating speed of output shaft 6 is higher than the rotating speed of low-speed gear 5, then drive clutch cover 2 is rotated by output shaft 6, thus driving spiral inner core 3 to rotate, and now owing to the rotating speed of spiral inner core 3 is higher than the rotating speed of overcoat 1, then the spiral bulge loop of spiral inner core 3 will screw out in the helical groove from overcoat 1, then spiral inner core 3 can not drive overcoat 1 to rotate, thus reaching the purpose of one-way clutch.

Claims

1. a luer engages with isolator, it is characterised in that include overcoat, clutch cover and spiral inner core and end cap; Described overcoat is provided centrally with shoulder hole, and described clutch cover is inserted in the macropore of shoulder hole, and clutch cover and overcoat are rotationally connected; Being provided with helical groove on the hole wall in the hole that described shoulder hole is less, the stage casing of described spiral inner core is also equipped with spiral bulge loop, and spiral bulge loop matches with helical groove; The right-hand member of described spiral inner core and overcoat are rotationally connected, and the left end of spiral inner core is connected with clutch cover spline, and can also slide relative to overcoat and clutch cover when spiral inner core rotates relative to overcoat; Also being arranged with spring on described spiral inner core, and have spring retainer bulge loop integrated with spiral inner core on spiral inner core, the top, one end of spring is pressed on spring retainer bulge loop, and spring other end top is pressed on described clutch cover; End cap is inserted in from clutch cover end, and fixes on the coat.

2. luer engages with isolator according to claim 1, it is characterised in that be provided with bearing between described overcoat and clutch cover.

3. luer engages with isolator according to claim 1, it is characterised in that described end cap is inserted in from clutch cover end, and fixing on the coat by circumferential equally distributed screw.

4. luer engages with isolator according to claim 1, it is characterised in that described spiral bulge loop, helical groove are provided with two.

5. luer engages with isolator according to claim 1, it is characterised in that described spiral bulge loop, helical groove the spiral number of turns be only a circle.