CN2122260U

CN2122260U - Rubber cylinder pin elastic coupling

Info

Publication number: CN2122260U
Application number: CN 91226928
Authority: CN
Inventors: 蔡继绪
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-10-18
Filing date: 1991-10-18
Publication date: 1992-11-18

Abstract

The utility model relates to a rubber cylinder pin elastic coupling, which is mainly composed of a driving half coupling, a driven half coupling and a rubber cylinder pin, wherein, the single side radial clearance between the driving half coupling and the driven half coupling is between 0.3 mm and 4.5 mm, and the axial clearance is 1 mm; the driving half coupling and the driven half coupling are respectively provided with a plurality of half circular holes, the positions of which are corresponding, and the sizes, the depths and the numbers are equal. The rubber cylinder pin is used for transferring motion and dynamic force and is under the extruded condition when the rubber cylinder pin is used, and the utility model is suitable for the connection of two driving shafts of the coaxial line. The utility model has the characteristics of simple structure, easy fabrication, large transfer torque, impact and alternate load bearing property, high and low speed transmission adopting, operation without need of lubricating, long service life, and convenient assembly and disassembly.

Description

Rubber cylinder pin elastic coupling

The utility model relates to a kind of coupling, particularly a kind of plantation rubber pin elastic coupling flexible coupling that connects between two transmission shafts of coaxial line that is applicable to.

Use more elastic coupling flexible coupling that GB4323-84 " rubbercushioned sleeve bearing coupling " is arranged at present, GB5014-85 " elastic dowel pin shaft coupling ", GB5015-85 " spring column pin gear coupling ", GB5272-85 " quincunx coupling " etc. are several.Other part that these standard coupling have is complex-shaped, is difficult for manufacturing, and the elastic element that has is enclosed within on the rigid core pin, makes the shock-absorbing pooling feature undesirable, and majority all is that the circular section is subjected to shearing force, thereby the transmitting torque ability of elastic element fails to make full use of.

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provide a kind of simple in structure, be easy to make, can make full use of elastic element the transmitting torque ability, can make full use of the plantation rubber pin elastic coupling flexible coupling of the pooling feature of elastic element.

How introduce the purpose of this utility model below in conjunction with accompanying drawing realizes.

Fig. 1 is a structure sectional view of the present utility model.

Fig. 2 is that the K of Fig. 1 is to view.

Fig. 3 is the A-A sectional view of Fig. 1.

The utility model complete unit is by driven half a coupler 1, rubber cylinder pin 2, semicircular ring Baffle plate 3, active half a coupler 4, hexagon socket cap head screw 5 form. Initiatively endoporus and the driving shaft of half a coupler 4 link, its big external diameter partly inserts in the big endoporus of driven half a coupler 1, little endoporus and the driven shaft of driven half a coupler 1 link, big inner hole sleeve is on the big external diameter of active half a

coupler

4,1 and 4 part that is nested does not directly contact mutually, leave each other the end play of monolateral 0.3～1.5mm radial clearance and 1mm, cylindrical position at nested active half a coupler, inner hole part with driven half a coupler, respectively have by identical graduation circular diameter equally distributed semicircle orifice on circumference, these semicircle orifice position correspondences, size, the degree of depth, quantity all equates, press the transmitting torque difference, the quantity of its semicircle orifice can be chosen between 4～12, and the axis of semicircle orifice is parallel to the shaft coupling rotation, work as the master, when driven half a coupler is nested assembling at the diaxon of same axis, these semicircle orifices just piece together 4～12 cylinder holes, transmitting torque and motion, connect main, the intermediate medium of driven half a coupler--rubber cylinder pin 2 just is contained in the cylinder hole that these semicircle orifices piece together, play flexible member, end face at driven half a coupler has four screws, four hexagon socket cap head screws 5, two semicircular ring baffle plates 3 are pressed on the end face of driven half a coupler, in case rubber cylinder pin 2 on-stream being squeezed skid off. When shaft coupling was worked, rubber cylinder pin is to be sheared and squeezed state.

The utility model has more advantage compared with prior art.

Elastic element plantation rubber pin of the present utility model cut the cross section, be approximately rectangular cross-section by plantation rubber pin diameter, because the pin length dimension is greater than diameter dimension, so shearing force distributes on whole length direction, to the master, the stress of driven half-coupling and plantation rubber pin all makes moderate progress, because the rectangular cross-section of being cut is greater than the circular section, so made full use of the transmitting torque ability of pin, owing to this reason, this coupling and GB4323-84, GB5014-85, three kinds of coupling of GB5015-85 are compared, when structural parameter are identical, can transmit bigger moment of torsion, perhaps when transmitting torque was identical, various structural parameter can reduce, and gave to reduce the coupling volume, reduce cost, improving working speed provides approach.

The utility model is because structure is simple especially, so than the GB5272-85 of structure shape complexity, two kinds of standard coupling of GB5015-85 are easy to make, and can reduce cost.

Do not penetrate the rigid core pin in the elastic element of the present utility model, so compare with GB4323-84 standard coupling, the shock-absorbing pooling feature is much improved, and structure processing is also simplified to some extent, and overload protection performance in short-term is better.

The utility model, need not parts and half-coupling are moved axially owing to adopted the semicircular ring baffle plate when changing the plantation rubber pin, can change the plantation rubber pin easily, so easy for assembly, disassembly and maintenance.

The utility model is through practicing on metal-cutting machine tool, and proving effect is fine.Under correct design, installation, use condition, can reach working life more than 10 years, can adapt to the high, low speed running, need not be lubricated, can withstand shocks and cut lotus and alternate load.

Introduce the relevant issues in the utility model enforcement below.

Elastic element--the plantation rubber pin that the utility model adopts, its material can be a natural rubber, also can be reclaimed rubber, technical specifications in accordance with regulations form with special mould compacting, do not allow the moulding of machine cut processing method.

Elastic element plantation rubber pin of the present utility model allows where necessary with the nylon cylinder pin, and plastic cylinder pin, hard essential straight pin be as the substitute material of plantation rubber pin, but should check intensity and moment of torsion again by substitute material.

The cylindrical of the driven half-coupling in the utility model when the need of work stopper, can directly be made the stopper wheel and use.

The position that driving and driven half-coupling in the utility model connects with master and slave moving axis can change flange into and connect.

Environmental Conditions temperature of the present utility model is generally-20 ℃～+ 70 ℃.

Claims

1, a kind of plantation rubber pin elastic coupling flexible coupling, comprising the master is arranged, driven half-coupling, it is characterized in that: initiatively the endoporus and the driving shaft of half-coupling 4 link, its big external diameter partly inserts in the big endoporus of driven half-coupling 1, the little endoporus and the driven shaft of driven half-coupling 1 link, big inner hole sleeve is on the big external diameter of active half-coupling 4,1 and 4 part that is nested does not directly contact mutually, leave the radial clearance of monolateral 0.3～1.5mm and the axial clearance of 1mm mutually, cylindrical position at nested active half-coupling, endoporus portion position with driven half-coupling, equally distributed semicircle orifice on the circumference by identical graduation garden diameter is respectively arranged, these semicircle orifice position correspondences, size, the degree of depth, quantity all equates, press the transmitting torque difference, the quantity of its semicircle orifice can be chosen between 4～12, and the parallel axes of semicircle orifice is in the coupling spin axis, work as the master, when driven half-coupling is nested assembling on the diaxon of same axis, these semicircle orifices just piece together 4～12 cylindrical holes, transmitting torque and motion, connect main, the intermediate medium of driven half-coupling-plantation rubber pin 2 just is contained in the cylindrical hole that these semicircle orifices piece together, on the end face of driven half-coupling, four screws are arranged, four hexagon socket cap head screws 5 are pressed on two and half gardens ring baffle plate 3 on the end face of driven half-coupling.

2, straight pin elastic coupling flexible coupling as claimed in claim 1 is characterized in that: can be with nylon cylinder pin, plastic cylinder pin, the hard essential straight pin substitute material as the plantation rubber pin.

3, as claim 1,2 described elastic coupling flexible couplings, it is characterized in that: driving and driven half-coupling and master and slave moving axis point of attachment can change flange into and connect.