CN1470775A

CN1470775A - Coupling with metal rubber pin

Info

Publication number: CN1470775A
Application number: CNA03132455XA
Authority: CN
Inventors: 姜洪源; 敖宏瑞; 夏宇宏; 阎辉; 郝德刚
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2003-06-20
Filing date: 2003-06-20
Publication date: 2004-01-28
Anticipated expiration: 2023-06-20
Also published as: CN1219984C

Abstract

The invented shaft coupling comprises a left half coupling (1), a right half coupling (2) and pins (3) connecting the left half coupling (1) and the right half coupling (2). The pins (3) made from metal-rubber material possessing performances of high and low temperature resistant, large difference in temperature resistant and corrosion resistant. The shaft coupling with the invented pins provides capabilities of transferring large torsion moment, long fatigue life and compensating synthetical displacements including axial, radial and angular displacement. The shaft coupling is suitable to diversified conditions especially in high and low temperature, large difference in temperature and corrosion environment.

Description

The coupling of band metal-rubber pin

Technical field: the present invention relates to a kind of coupling with new material pin.

Background technique: coupling is one of crucial component in mechanical device and the machinery, and its main function is to connect diaxon, realizes the transmission of motion and power, has in actual engineering very widely and uses.As the standard piece in the Machine Design, the coupling that is applied in actual engineering has tens of kinds, and in order to guarantee the proper functioning of coupling, the axis of the diaxon that is connected by coupling should be with one heart strict.But because the influence of factors such as processing and assembling error and stress deformation, the axis that is connected diaxon by coupling may produce various offset form such as axial displacement, radial displacement, angular displacement and comprehensive displacement.Fast coupling compensates various displacements by the relative movement of forming between the coupling element in the work, and elastic coupling flexible coupling then is to utilize the elastic element that contains in the coupling to compensate various displacements.At present, most they have the ability of good compensate for displacement for non-metallic elastic materials such as rubber, nylon although be used for the elastic element of compensate for displacement in the elastic coupling flexible coupling, but owing to be subjected to the restriction of part material performance, be difficult to satisfactory the tired working life that is had under high temperature, low temperature, the big temperature difference and corrosive environment.Therefore, development is applicable to the elastic coupling flexible coupling of extraordinary operating modes such as high low temperature, the big temperature difference and corrosive environment, make it not only have the various displacement capacities of stronger compensation, simultaneously, have advantages of high bearing capacity and fatigue strength, be that the numerous scholars and the factory of mechanical engineering field makes great efforts one of key issue that solves always.

Summary of the invention: the object of the present invention is to provide a kind of good compensate for displacement ability that not only has, and coupling with multiple performances such as high temperature resistant, low temperature, the big temperature difference, it comprises left half-coupling 1, right half-coupling 2, connects the pin 3 of left half-coupling 1 and right half-coupling 2, described pin 3 is to be made by metal rubber material, and metal rubber material is that the wire of 0.06～0.25mm rolls the elastic element 3-1 that forms and the exoperidium 3-2 that is made by soft material of elastic element 3-1 coated outside forms by diameter promptly.The present invention is applied to the metal-rubber technology in the coupler structure, adopts the coupling of metal-rubber pin to have good high-low temperature resistant, the anti-big temperature difference and decay resistance; And coupling has the ability of higher transfer moment of torsion, and fatigue life is long; Have the ability of compensating axial displacement, radial displacement, angular displacement and comprehensive displacement with the coupling of metal-rubber pin, this coupling is suitable for various operating modes, operating modes such as high temperature, low temperature, the big temperature difference and corrosive environment especially, applied range.The coupling of applied metal rubber component is a kind of unique properties, simple in structure, novel coupler that using scope is very wide, it is the very high high value added product of a kind of technology content, can be widely used in various universal machines, special-purpose machinery, heavy machinery, light-duty machinery, national defence equipment and civilian goods market, have huge development potentiality.

Description of drawings: Fig. 1 is a structural representation of the present invention, and Fig. 2 is the structural representation of metal-rubber pin, and Fig. 3 is the left view of Fig. 2, and Fig. 4 is the structural representation of embodiment two.

Embodiment one: with reference to Fig. 1, Fig. 2, Fig. 3, present embodiment comprises left half-coupling 1, right half-coupling 2, the pin 3 that connects left half-coupling 1 and right half-coupling 2, described pin 3 is to be made by metal rubber material, the pin of metal rubber material is that the wire of 0.06～0.25mm rolls the elastic element 3-1 that forms and the exoperidium 3-2 that is made by soft material of elastic element 3-1 coated outside forms by diameter, the wire of elastic element 3-1 can be Stainless Steel Wire, steel wire, copper wire or aluminium wire, exoperidium 3-2 can be copper or aluminium or teflon, metal rubber material is made the pin required form get final product, the cross section of pin 3 is circular.Be provided with back-up ring 4 in the outer end of pin 3, back-up ring 4 is connected with coupling by screw 5, and in the time of installation, left half-coupling is connected the fixing of realization and coupled diaxon circumferencial direction with right half-coupling by key; The column pin hole at metal-rubber pin and two half-coupling flange places is assembled together with the form of interference fit, and during work, the metal-rubber pin bears shearing load, and the quantity of pin and size depend on the physical dimension of coupling and the moment of torsion that is transmitted.Left and right sides back-up ring is separately fixed at the both sides of two half-couplings by set screw, the metal-rubber pin is deviate from from the hole when preventing work, between screw 5 and back-up ring 4, elastic washer is housed, can prevent that screw from producing loosening because be subjected to the effect of alternate load when work, during installation, be reserved with the gap between two half-coupling end faces, the axial deformation, radial deformation and the bending deflection that utilize the stressed back of metal-rubber pin to produce compensate issuable axial displacement, radial displacement, angular displacement and comprehensive displacement.

Embodiment two: with reference to Fig. 4, what present embodiment and embodiment one were different is, the pin of metal rubber material is to be that the wire of 0.06～0.25mm rolls and forms by diameter.The making method of elastic element 3-1 is among the present invention, at first utilizes the special molding machine that wire is rolled into helical coil, then helical coil is carried out constant pitch and stretches, and makes its pitch be approximately equal to the helical coil diameter; Helical coil after stretching is made blank, get final product blank is cold stamping shaped then.

Key problem in technology point of the present invention is the metal-rubber member is applied in the structure of coupling, the metal-rubber member is raw material with the wire, do not contain any General Purpose Rubber, behind the special preparation technological forming, the metal-rubber pin but has the same elasticity of General Purpose Rubber, it can be prepared to hollow pin, also can be prepared to solid pin, its physical dimension is decided according to the required transmitting torque of coupling, by adjusting wire diameter, the helical coil diameter, the blank technology of arranging, porosity, and the plug structures shape etc., can make the metal-rubber pin have different rigidity, to satisfy the needs of different operating modes, the correct wire raw material of selecting, it is high temperature resistant that the metal-rubber pin is had, low temperature resistant, the anti-big temperature difference and decay resistance, deformation performance by the metal-rubber pin after stressed can make coupling have the ability of the various displacements of compensation.

Claims

1, a kind of coupling with the metal-rubber pin, it comprises left half-coupling (1), right half-coupling (2), connects the pin (3) of left half-coupling (1) and right half-coupling (2), it is characterized in that described pin (3) is to be made by metal rubber material.

2, the coupling of band metal-rubber pin according to claim 1, the pin that it is characterized in that described metal rubber material are to be that the wire of 0.06～0.25mm rolls and forms by diameter.

3, the coupling of band metal-rubber pin according to claim 1, the pin that it is characterized in that described metal rubber material are that the exoperidium of being made by soft material (3-2) that the wire of 0.06～0.25mm rolls the elastic element (3-1) that forms and elastic element (3-1) coated outside is formed by diameter.

4, the coupling of band metal-rubber pin according to claim 1, the cross section that it is characterized in that described pin (3) is for circular.

5, according to the coupling of claim 2 or 3 described band metal-rubber pins, the wire that it is characterized in that elastic element (3-1) is Stainless Steel Wire or steel wire or copper wire or aluminium wire.

6,, it is characterized in that exoperidium (3-2) is copper or aluminium or teflon according to the coupling of claim 2 or 3 described band metal-rubber pins.

7, according to the coupling of claim 1,2,3 or 4 described band metal-rubber pins, it is characterized in that being provided with back-up ring (4) in the outer end of pin (3), back-up ring (4) is connected with coupling by screw (5).

8, the coupling of band metal-rubber pin according to claim 5 is characterized in that being provided with back-up ring (4) in the outer end of pin (3), and back-up ring (4) is connected with coupling by screw (5).

9, the coupling of band metal-rubber pin according to claim 6 is characterized in that being provided with back-up ring (4) in the outer end of pin (3), and back-up ring (4) is connected with coupling by screw (5).