CN2806871Y

CN2806871Y - Elastic slide block type moveable coupler

Info

Publication number: CN2806871Y
Application number: CN 200520112760
Authority: CN
Inventors: 岳峰
Original assignee: THIRD BRACH Co OF INNER MONGOLIA FIRST MACHINERY GROUP CORP
Current assignee: THIRD BRACH Co OF INNER MONGOLIA FIRST MACHINERY GROUP CORP
Priority date: 2005-06-29
Filing date: 2005-06-29
Publication date: 2006-08-16
Anticipated expiration: 2015-06-29

Abstract

The utility model relates to an elastic sliding block moveable type shaft coupling which comprises a left half shaft coupling, a transition disc and a right half shaft coupling. The utility model is characterized in that the tooth-shaped structures of the left half shaft coupling the right half shaft coupling are completely identical; each half shaft coupling is provided with three fan-shaped teeth; the teeth are all arranged on the front ends of half coupling halfs and are equidistantly distributed along the circumference of shaft holes; fan-shaped grooves are arranged between adjacent teeth of the same half shaft coupling; the shape of the transition disc is equidistantly provided with six fan-shaped convex shoulders round a center shaft hole of the transition disc according to the circumference; a fan-shaped groove is arranged between every two adjacent convex shoulders; the size of the fan-shaped grooves of the transition disc is matched with the size of the teeth of the half shaft couplings; a fan shape formed by every two adjacent convex shoulders and the fan-shaped groove between the adjacent convex shoulders is matched with the fan-shaped grooves of the half shaft couplings. The utility model has the advantages that the stress of the utility model is very uniform and reliable when being touched, the number of the teeth of the half shaft couplings is reduced; the roots of the fan-shaped convex shoulders of the transition disc are thicker than the roots of fan-shaped convex shoulders of discs of existing shaft couplings and can not be easily broken; the making material of the disc is nylon, and the service life of the disc is enhance by 2.5 times of the service life of inlet elements.

Description

The movable coupling of elastic slide block

Technical field

The utility model relates to the movable coupling of a kind of elastic slide block.

Background technique

In mechanical industry, oldham coupling commonly used is made up of the half-coupling and the disk that convex shoulder is arranged (also being called elastic slide block) of two recessings.Disc material is steel part or rubber product.If the rigid coupling of steel part has increased the wearing and tearing of half-coupling, and does not have impulsive load; If rubber product, distortion then easy to wear is changed frequent.

The numerical control machine tool of present domestic import accounts for significant proportion, the used varying load of the numerical control machine tool of import, the coupling of clockwise and anticlockwise, and majority is a special-purpose member.And the middle quincunx disk that plays buffer function, the convex shoulder of disk is a sub-circular, its root is very thin, frequent stressed in, be easy to fracture, the manufactured materials of disk is a rubber, abrasion deformation is easily changed frequently, loses time.Main replacing part is supplied by external producer, costs an arm and a leg, and lead time is long, delays production often.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, a kind of elastic slide block and movable coupling to be provided.

The purpose of this utility model is realized by following mode:

The utility model comprises left half-coupling, transition disk, right half-coupling, it is characterized in that: the tooth type structures of left half-coupling and right half-coupling is identical, each half-coupling is provided with three fan-shaped teeth, teeth all are located at the front end of half-coupling, being equally spaced along the axis hole circumference, is scalloped recess between the adjacent teeth of same half-coupling; The shape of transition disk is equidistantly to be provided with six fan-shaped convex shoulders round its central shaft hole by circumference, between per two adjacent convex shoulders is scalloped recess, the size of scalloped recess and half-coupling teeth are complementary, and the scalloped recess of per two adjacent convex shoulders and the fan-shaped and half-coupling that scalloped recess constituted between them is complementary.

Described transition disk is made by nylon material.

The utility model has the advantages that: the convex shoulder shape of the teeth of half-coupling and transition disk is fan-shaped, when they interact, the existing coupling of area of contact is big, in its when contact, is stressed more evenly reliable, and has reduced the teeth quantity (each half-coupling teeth quantity of existing coupling is generally four or more) of half-coupling; The root of the convex shoulder of the existing coupling disk of its root of fan-shaped convex shoulder of transition disk is thick, is not easy fracture, and the manufactured materials of disk adopts nylon, and its life-span has been improved 2.5 times than import parts.

Description of drawings

Fig. 1 is an overall structure schematic representation of the present utility model, wherein: 1--driving shaft, 2--key, 3--left side half-coupling, 4--transition disk, the right half-coupling of 5--, 6--driven shaft);

Fig. 2 is left half-coupling structural representation (last figure is that plan view, figure below are plan view);

Fig. 3 is right half-coupling structural representation (last figure is that plan view, figure below are plan view);

Fig. 4 is transition disk structural representation (left side figure is that plan view, right figure are left view).

Embodiment

With reference to accompanying drawing, the utility model comprises left half-coupling 3, transition disk 4, right half-coupling 5.Left side half-coupling 3 is identical with the tooth type structures of right half-coupling 4, and each half-coupling is provided with three fan-shaped teeth 8, and teeth 8 all are located at the front end of half-coupling, are equally spaced along the axis hole circumference, and 8 of the adjacent teeth of same half-coupling are scalloped recess 7; The shape of transition disk 4 is equidistantly to be provided with six fan-shaped convex shoulders 9 round its central shaft hole by circumference, between per two adjacent convex shoulders 9 is scalloped recess 10, the size of scalloped recess 10 and half-coupling teeth 8 are complementary, the scalloped recess 7 of the fan-shaped and half-coupling that per two adjacent convex shoulders 9 and the scalloped recess between them 10 are constituted is complementary, and transition disk 4 is made by 1010 nylon rods (Lu Q/HG13-326-82, primes).Middle nylon transition disk 4 can play the effect that relaxes the impact absorption vibration.During operation, left end driving shaft 1 will be turned round and refuse to pass to left half-coupling 3, and left half-coupling 3 will be turned round by transition disk 4 and withhold right half-coupling 5, and right half-coupling 5 will be turned round at last by interference fit and refuse to pass to driven shaft 6.Characteristics of the present utility model: axial displacement ± 0.5～± 3, radial displacement 0.15～0.25, angular displacement 40 '.Be applicable to movingly, start frequent, varying load, clockwise and anticlockwise, high rotating speed (can reach 3000r/min) work down.In the transmission of numerical control machine tool, one end left side half-coupling 3 connects by key 2, be contained on the driving shaft 1 of drive motor, to turn round the right half-coupling 5 of refusing to pass to the other end through middle transitional disk (elastic slide block) 4, at last, right half-coupling 5 will be turned round by interference fit (according to actual conditions, also can adopt the key ways of connecting) and refuse to pass on the driven shaft 6 of high-pressure service pump.

In the course of the work, meet numerical control machine tool and start frequent, varying load, the requirement of clockwise and anticlockwise, high-revolving transmission system.And through the practice operation of numerical control machine tool, improved 2.5 times than import parts working life.

Claims

1. movable coupling of elastic slide block, comprise left half-coupling, transition disk, right half-coupling, it is characterized in that: the tooth type structures of left half-coupling and right half-coupling is identical, each half-coupling is provided with three fan-shaped teeth, teeth all are located at the front end of half-coupling, being equally spaced along the axis hole circumference, is scalloped recess between the adjacent teeth of same half-coupling; The shape of transition disk is equidistantly to be provided with six fan-shaped convex shoulders round its central shaft hole by circumference, between per two adjacent convex shoulders is scalloped recess, the size of scalloped recess and half-coupling teeth are complementary, and the scalloped recess of per two adjacent convex shoulders and the fan-shaped and half-coupling that scalloped recess constituted between them is complementary.

2. the movable coupling of elastic slide block according to claim 1, it is characterized in that: the transition disk is made by nylon material.