CN201575081U

CN201575081U - Flexible coupling

Info

Publication number: CN201575081U
Application number: CN2010200014849U
Authority: CN
Inventors: 陈啸; 周海华; 陈宗祥; 吴义奇; 吴尚荣
Original assignee: ANHUI SAIERTE CENTRIFUGE Co Ltd
Current assignee: ANHUI SAIERTE CENTRIFUGE Co Ltd
Priority date: 2010-01-06
Filing date: 2010-01-06
Publication date: 2010-09-08
Anticipated expiration: 2020-01-06

Abstract

The utility model relates to a flexible, which comprises half couplings provided with through holes at the center, key grooves are provided at the side surfaces of small round benches of the half couplings, a plurality of flexible screw holes and screw nails are evenly arranged on an annular end surface between a large circle and a small circle of each half coupling alternatively, convex edges protruding inwards are provided in the flexible screw holes and screw holes, flexible sleeves are provided in the flexible screw holes, flexible screw holes positions on two half couplings are corresponding in stagger, a column pin passes through the flexible sleeve and a retaining ring in the flexible screw hole on one half coupling and the screw hole on the other one half coupling, and is fixed by nuts. The coupling replaces connecting bolts by the column pin sleeved with the flexible sleeve. The torque is transferred by the flexible sleeve, the utility model has certain axial and radial displacement compensating capability, is suitable for middle and high speed shaft transmission with more positive and negative rotating variations and frequent startup, the utility model also has advantages of simple structure, large carrying ability, convenient maintenance, low cost and strong axial and radial displacement compensating capability.

Description

A kind of flexible coupling

(1) technical field:

The utility model relates to the connection set of machinery, is specifically related to a kind of flexible coupling.

(2) background technique: axle is a kind of Placement commonly used in the machinery with being connected of axle, it is just passable that employing rigidly fixes connection in the common machinery, but in the machinery that some run up, need this connection to have certain displacement compensation capability again,, generally adopt elastic washer or rubber elasticity dish to realize to adapt to the needs of machine operation, because machinery is to run up, heating value is bigger, and temperature is higher, and the working life of elastic washer or rubber elasticity dish is very short; Need often to change elastic washer or rubber elasticity dish, cost of production is very high, and has influenced ordinary production.

(3) summary of the invention:

The purpose of this utility model is to provide a kind of flexible coupling of simple in structure, long service life.

For achieving the above object, a kind of flexible coupling described in the utility model comprises that two centers that are made of the two-layer round platform of size are provided with the half-coupling of through hole, the side of the little round platform of half-coupling is provided with keyway, last alternate several elasticity screw and screws that evenly be provided with of the great circle of each half-coupling and the annular end face between the roundlet, lean on an end of the end face of great circle to be equipped with the convex edge of inwardly stretching out in the hole of elasticity screw and screw, be provided with elastic sleeve in the elasticity screw, elasticity screw on two half-couplings and the screwhole position correspondence that interlaces, pin passes the elastic sleeve in the elasticity screw on the half-coupling successively, screw and fix on back-up ring between two half-couplings and another half-coupling by nut.

The mode that a kind of flexible coupling described in the utility model directly connects motor shaft and vertical shaft by coupling, thereby the mechanism that has saved a series of complexity in traditional seperator kind of drive.Consider the working condition of the variation of vibration in the machine run, rotating speed and rigidity, adopt the pin that is with elastic sleeve to replace connecting bolt.By the elastic sleeve transmitting torque, has certain axial and radial displacement compensation ability.Be suitable for clockwise and anticlockwise and change middle and high fast shaft drive more, that startup is frequent.Have simple in structurely, bearing capacity is big, and is easy to maintenance, cost low and axially, advantage such as radial displacement compensation ability.

(4) description of drawings:

Fig. 1 is the structural representation of a kind of flexible coupling described in the utility model;

Fig. 2 is the plan view of a kind of flexible coupling shown in Figure 1.

(5) embodiment:

By Fig. 1, Fig. 2 as seen, a kind of flexible coupling described in the utility model comprises that two centers that are made of the two-layer round platform of size are provided with the half-coupling 1 of through hole, the side of the little round platform of half-coupling 1 is provided with keyway 2, one of them half-coupling 1 is fixedlyed connected with the output shaft 10 of motor 9 by the flat key that is fixed in the keyway 2, and another half-coupling 1 is fixedlyed connected with the power input shaft 11 of machinery by the flat key that is fixed in the keyway 2; Last alternate three elasticity screws 3 and three screws 4 of evenly being provided with of the great circle of each half-coupling 1 and the annular end face between the roundlet, how many foundations of elasticity screw 3 and screw 4 need to set; Lean on an end of the end face of great circle to be equipped with the convex edge of inwardly stretching out in the hole of elasticity screw 3 and screw 4, elasticity screw 3 is that elasticity screw 3 is darker, and the convex edge is more shallow, and with the convenient elastic sleeve 5 of placing, 4 of screws are that screw 4 is more shallow, and the convex edge is darker; Be provided with elastic sleeve 5 in the elasticity screw 3, elastic sleeve 5 is generally made by the elastic rubber material of oil resistant, and reticulate pattern is made to improve its elasticity in the cross section; Elasticity screw 3 on two half-couplings 1 and screw 4 correspondence that is staggeredly located, pin 6 are passed screw 4 and fixing by nut 8 on back-up ring 7 between the elastic sleeve in the elasticity screw 3 on the half-coupling 15, two half-couplings 1 and another half-coupling 1 successively.So just two axle flexibilities can be fixed together; In screw 4, also packing ring 12 can be set between pin 6 and the nut 8.The correspondence because elasticity screw 3 on two half-couplings 1 and screw 4 interlace is equipped with elastic sleeve 5 in each elasticity screw 3, guaranteed like this each pin 6 that connects two half-couplings 1 axially and the footpath certain displacement compensation capability is upwards all being arranged.

A kind of flexible clutch described in the utility model adopt this flexible clutch to carry out being connected between axle and the axle not only can guaranteeing the transmission of power but also can make have between axle and the axle certain axially and the radial displacement compensation ability, avoided the mechanical damage that is rigidly connected and causes easily by there not being displacement compensation capability between axle and the axle, also avoided flexibly connecting between axle that existing employing elastic washer or caoutchouc elasticity dish carry out and the axle and need often to change elastic washer or caoutchouc elasticity dish and cause the too high defective of production cost, be suitable for rotating and change more, in starting frequently, the high speed shaft transmission. Have simple in structurely, bearing capacity is big, and is easy to maintenance, cost low and axially, the advantage such as radial displacement compensation ability.

Claims

1. flexible coupling, it is characterized in that: described flexible coupling comprises that two centers that are made of the two-layer round platform of size are provided with the half-coupling (1) of through hole, the side of the little round platform of half-coupling (1) is provided with keyway (2), last alternate several elasticity screws (3) and the screw (4) of evenly being provided with of great circle of each half-coupling (1) and the annular end face between the roundlet, lean on an end of the end face of great circle to be equipped with the convex edge of inwardly stretching out in the hole of elasticity screw (3) and screw (4), be provided with elastic sleeve (5) in the elasticity screw (3), elasticity screw (3) on two half-couplings (1) and screw (4) correspondence that is staggeredly located, pin (6) are passed a half-coupling (1) successively and are gone up elastic sleeve (5) in the elasticity screw (3), back-up ring (7) between two half-couplings (1) and another half-coupling (1) are gone up screw (4) and fixing by nut (8).