CN201437229U

CN201437229U - Self-locking hoop

Info

Publication number: CN201437229U
Application number: CN 200920075319
Authority: CN
Inventors: 王玉民; 方黎明; 林学锋; 陈冬云
Original assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Current assignee: Shanghai GKN Huayu Driveline Systems Co Ltd
Priority date: 2009-07-27
Filing date: 2009-07-27
Publication date: 2010-04-14
Anticipated expiration: 2019-07-27

Abstract

The utility model discloses a self-locking loop, which comprises a left lock ring and a right lock ring; one end of the left lock ring is hinged with one end of the right lock ring, and the other end the left lock ring and the other end of the right lock ring are connected through a self-locking structure; the centers of the two lock rings are provided with cavities for restraining a steel ball component; the edge of the cavity is provided with a baffle sheet; the self-locking structure comprises a button, an upper lock rod, a lower lock rod and a first spring; the upper lock rod and the lower lock rod are provided with lock hooks which are matched; the left lock ring is provided with the upper lock rod; the right lock ring is provided with the button and the lower lock rod fixedly connected with the button; the button is connected with one end of the spring; and the bottom of the cavity is also provided with a baffle. The self-locking hoop can serve as an auxiliary tool for mobile joint assembly in the transmission shaft industry, is provided with a steel ball, a ball cage and an inner start wheel component (short name: steel ball component) for a yoke serving as a mobile joint structure, needs to first take out the steel ball component in assembly; and after being arranged on a real axis and arranged back to the yoke, the self-locking hold hoop can greatly simplify the operation process and improve the production efficiency.

Description

The self-locking anchor ear

Technical field

The utility model is the special assembling tool in the power transmission shaft industry, relates in particular to the self-locking anchor ear that a kind of DO of being used for type moves the joint assembling.

Background technology

One end of driving-shaft assembly links to each other with the other end by real axis 600 for moving joint.Referring to Fig. 1, it is the more special mobile joint of a kind of structure that the DO type moves joint (being called for short the DO joint), by yoke 100 and be loaded on 6 steel balls 300 (only illustrating among Fig. 1) in it with 6 liner ball roads, ball cage 400, and star-wheel 500 (sub-assembly of steel ball 300, ball cage 400, star-wheel 500 is called for short steel ball component) is formed, and strict assembly requirement is arranged between yoke 100 and the steel ball component, and generally all be after providing by professional manufacturer is complete, be used further to the assembly assembling.The DO joint of some product and the axial constraint of real axis 600 are the (see figure 1)s that realize at the inner face of star-wheel 500 by a circlip 200 retainings.Therefore,, must have an elder generation that steel ball component is taken out from yoke 100 in when assembling, star-wheel 500 and circlip 200 are installed to real axis 600 after, return the process that installs in the yoke 100 again.And when steel ball component taken out in yoke 100, as no special tool(s), steel ball can tumble.Generally be to get a container to adorn steel ball, wait star-wheel 500, circlip 200 all to install after, by a portable real axis of operative employee, another operative employee resets 6 steel balls and ball cage, and two bracelet hold anti-steel ball and come off, last two people cooperation reinstalls steel ball component in the yoke 100.As seen, the aforesaid way complex operation, efficiency of assembling is low.

The utility model content

The technical problems to be solved in the utility model provides a kind of self-locking anchor ear, not only make things convenient for D0 joint steel ball component from yoke, to take out, assembling, and return once more and install in the yoke, and in whole process, steel ball, ball cage and star-wheel assemble as one all the time together fully, thereby operation is greatly simplified.

The utility model is by the following technical solutions:

A kind of self-locking anchor ear, comprise left and right armful of ring, left and right armful of ring one end is hinged, the other end connects by self-locking structure, the central authorities of two armfuls of rings establish a cavity that is used to retrain steel ball component, described cavity edge is provided with catch, described self-locking structure comprises button, upper and lower locking bar, and first spring, upper and lower locking bar is provided with the latch hook that can match, a left side is embraced on the ring and is established locking bar, the right following locking bar of establishing button, fixedlying connected on the ring of embracing with button, described button also is connected with spring one end, and described cavity bottom is also baffled.

Preferably, embrace on a left side and also to be provided with the assist location key on the ring, embrace on the correspondence position of ring establishing on the right side and close keyway.

Preferably, the inwall that surrounds of left and right armful of ring is provided with the alley with the steel ball component coupling.

Preferably, described catch is for being symmetrical arranged.

Preferably, embrace on a left side and to be provided with ejector pin on the ring, an end is connected with second spring, and the other end withstands on right embracing on the ring.

The utility model is buckled in yoke oral area and inversion, because left and right two armfuls of ring inwalls are provided with special alley, under non-locking state, steel ball component can be at an easy rate fully in the landing anchor ear, and one hand slightly firmly closes anchor ear, and anchor ear is with self-locking, steel ball component is constrained in the shroud ring, can not move, therefore can be with steel ball component with the anchor ear assembling (first star-wheel is press fit on the real axis together with steel ball, ball cage, refill circlip etc.) of reaching the standard grade.When returning when being loaded on yoke, portable real axis, anchor ear is buckled on the yoke opening equally, presses the button, the opening part of two armfuls of rings is backed down by ejector pin, the light anchor ear that changes, make the steel ball can be to yoke alley position, steel ball component will slip in the yoke along the yoke alley, with the hands anchor ear is drawn back big opening (can cross real axis) then, anchor ear can be taken off, be used further to the assembling of next part.As seen,, when assembling, can save fully steel ball is separated the process of returning dress again by the utility model, and, need not two people cooperation and just can finish, therefore can obviously improve efficiency of assembling.

Description of drawings

Fig. 1 moves the structural representation of joint for the DO type.

Fig. 2 is a front view of the present utility model.

Fig. 3 be among Fig. 2 A-A to cutaway view.

Fig. 4 is a left view of the present utility model.

Fig. 5 is the schematic diagram of the utility model after opening.

The specific embodiment

The utility model comprises body, and body is made up of left and right armful of

ring

1,2, and left and right armful of

ring

1,2 one ends are hinged by rotating shaft 3, and the other end connects by self-locking structure, sees Fig. 2, Fig. 4.About embrace a ring inwall and be provided with special alley, about embrace the position of ring interlude over against alley, respectively establish catch 4, about embrace a ring bottom surface and be provided with baffle plate 5, a bigger circular hole is established in the inboard of baffle plate 5, when avoiding shooting property back-up ring with baffle plate 5 interference.When left and right armful of

ring

1,2 closures, central formation can just be held steel ball component, and the cavity that cooperates with it, therefore steel ball component can be wrapped in fully the inside.Self-locking structure is made up of the upper and

lower locking bar

8,9 and first spring 11, sees Fig. 3.A left side is embraced ring 1 and is established locking bar 8, sets locking bar 9 on the right armful of ring 2 and is connected with first spring 11.First latch hook 81 is arranged on the last locking bar 8, cooperate with second latch hook 91 on the following locking bar 9.Also connecting the button 6 of opening locking usefulness on the following locking bar 9, button 6 bottoms withstand on first spring 11, and therefore, locking bar 9 moves down under driving behind button 6 pressurizeds,

latch hook

81 and 91 is broken away from, thereby remove locking.Preferably, embrace ring on a left side and also be provided with assist location key 7 on 1, embrace on the correspondence position of ring 2 establishing on the right side and close keyway 10, the assist location when being used to lock after guiding and the locking improves two armfuls of ring locks tightly and the stability in the use.Embrace ring 1 opening part on a left side and also be provided with ejector pin 12, when anchor ear was locked, ejector pin 12 1 ends were conflicted with the right ring 2 of embracing, and the other end connects second spring 13 of pressurized.And when non-locking state, spring discharges, and ejector pin 12 ejects, make two armfuls of rings can keep suitable aperture, steel ball component can successfully fall into or break away from anchor ear, sees that Fig. 5 (can find out from the non-locking state schematic diagram of anchor ear, when anchor ear is backed down, two catch will no longer stop steel ball).

The position of catch 4 is (the unclamping fixedly two screws of catch earlier) that can suitably adjust.When using first, steel ball component be packed into earlier anchor ear and locking transfer to catch 4 just then and can be pressed onto steel ball, the position that two anchor ears can be locked again, and then will press the screw-driving of catch.At this moment, behind the anchor ear that closes, though have only two steel balls of symmetry to be pushed down by catch, because six steel balls are subjected to the constraint of ball cage window jointly, so all steel balls all can not move in anchor ear.

Preferably, when anchor ear is closed, about embrace ring a upper surface constitute a counterbore 14 (see figure 4)s, match with the cylindrical of yoke, with convenient with anchor ear to being buckled on the yoke mouth and relatively rotating, thereby realize the transfer of steel ball component integral body between anchor ear and yoke inner chamber.

The utility model is buckled on the yoke opening, yoke is inverted, pour out the steel ball component in the yoke is disposable, because left and right two armfuls of ring inwalls are provided with special track, steel ball component can be slipped in the anchor ear at an easy rate fully, after steel ball component falls into cavity, and closed left and right armful of

ring

1,2, steel ball component is locked together together with anchor ear, and as the one assembling of reaching the standard grade.When steel ball component and circlip after installing on the real axis, again anchor ear is buckled on the yoke opening equally, press the button 6, two latch hooks of interlocking break away from, and two armfuls of rings are backed down by ejector pin 12, the light anchor ear that changes, make steel ball can partly aim at yoke alley scope, steel ball component will slip into along the alley in the yoke in the yoke, again with about embrace ring and draw back, anchor ear can be taken off across real axis, be used further to the assembling of next part.

The utility model not only makes things convenient for steel ball component to pour into and lock by self-locking structure and the cavity that matches with steel ball component, thereby realizes the follow-up assembling of integral type; Also made things convenient for steel ball component to reinstall yoke, again anchor ear has been taken off.Saved fully during assembling steel ball is separated the process return dress again, and steel ball component returns people of dress yoke and just can finish, not only simplified operating process, and obviously improved production efficiency.

Claims

1. self-locking anchor ear, it is characterized in that: comprise a left side, the right ring (1 of embracing, 2) a, left side, right armful of ring (1,2) end is hinged, the other end connects by self-locking structure, the central authorities of two armfuls of rings establish the cavity of a constraint steel ball component, and described cavity edge is provided with catch (4), and described self-locking structure comprises button (6), on, following locking bar (8,9), and first spring (11), on, following locking bar (8,9) be provided with the latch hook (81 that can match, 91), a left side is embraced on the ring (1) and is established locking bar (8), and right embracing on the ring (2) established button (6), the following locking bar (9) of fixedlying connected with button (6), described button (6) also is connected with spring one end, described cavity bottom also baffled (5).

2. self-locking anchor ear according to claim 1 is characterized in that: embrace on a left side and also be provided with assist location key (7) on the ring (1), embrace on the correspondence position of ring (2) establishing on the right side and close keyway (10).

3. self-locking anchor ear according to claim 1 is characterized in that: the inwall that left and right armful of ring (1,2) surrounds is provided with the alley with the steel ball component coupling.

4. self-locking anchor ear according to claim 3 is characterized in that: described catch (4) is for being symmetrical arranged.

5. self-locking anchor ear according to claim 1 is characterized in that: embrace on a left side and be provided with ejector pin (12) on the ring (1), ejector pin (12) one ends are connected with second spring (13), and the other end withstands on right embracing on the ring (2).