CN201526616U - Phase coupling - Google Patents

Abstract

The utility model provides a phase coupling, which comprises an external expansion sleeve, an internal expansion sleeve and a fastening bolt and is characterized in that an expansion joint is formed in the axial direction of the internal expansion sleeve, an external circular conical surface is formed on the internal expansion sleeve, an internal circular conical surface is formed on external expansion sleeve, an arc-shaped long hole is formed on at least either the internal or the external expansion sleeves, the internal expansion joint is in contact with the external expansion joint through the circular conical surface, the internal and the external expansion joints are connected through the fastening bolt, the external circular conical surface is formed on the internal expansion sleeve, a key slot connected with a shaft 2 is formed on the internal circle, a round hole or an arc-shaped long hole is formed on the outer edge, and the internal expansion sleeve is connected with the shaft 2 through a key 2; under the free state, the internal expansion sleeve and the shaft second are in clearance fit, the internal circular conical surface is formed on external expansion sleeve, a key slot connected with a shaft 1 is formed on the internal circle, round hole or an arc-shaped long hole is formed on the outer edge, and the external expansion sleeve is connected with the key 1through the shaft 1; the phase coupling has the advantages of simple structure, small volume and big transmitting torque.

Description

The phase place coupling

Technical field

The utility model relates to mechanical actuating unit, particularly relates to a kind of phase place coupling.

Background technique

At present, use wider phase place coupling on the market and mainly contain two kinds, a kind of is that a grade gasket type is arranged, and another kind is electrodeless friction type.The coupling of these two kinds of patterns adopts in mechanism driving in a large number, but all has some shortcomings, and the adjusting of first kind of pattern phase place is loaded down with trivial details, and poor accuracy; Though second kind of pattern phase adjusted accuracy is good, the structure more complicated wants the volume ratio of transmitting large torque coupling bigger.

The patent No. is the Rotary-angle compensation coupling of a kind of novel many styles of 94213123.1, independently two groups of gear units are set each other between two half-couplings, torsion is transmitted in tooth engagement or pin transmission with circumference uniform distribution, and utilize the difference of two groups of gear unit numbers to adjust angle, can solve between diaxon (or two equipment) problem that needs quantitatively accurately to adjust outer corner difference at transmission field, also can make diaxon reach predetermined torsional angle and be in the pre-stressed state of requirement by designing requirement.Novel coupler can be made into multiple styles such as pin-type load, sprocket-type, pin tooth type, spline.Use easy to operately, effect is particularly evident in the synchronizing shaft transmission system.But this coupler structure complexity, volume is big.

Summary of the invention

The purpose of this utility model provides a kind of phase place coupling, and this is simple in structure, and volume is little, and the moment of torsion of transmission is big.

In order to achieve the above object, phase place coupling of the present utility model, comprise outer expansion set, inner expension cap and clamping bolt, it is characterized in that: the inner expension cap axial direction has expansion joint (E.J.), outer conical surface is arranged on the inner expension cap, on the outer expansion set internal conical surface is arranged, inner expension cap and outer expansion set have at least one to have long arc-shaped holes;

Inner expension cap contacts with conical surface with outer expansion set, and outer expansion set is connected with clamping bolt with inner expension cap.

Described inner expension cap axial direction has expansion joint (E.J.), and outer conical surface is arranged on the inner expension cap, and interior circle has and axle two keyways that are connected, and circular hole or long arc-shaped holes are arranged on the outer rim, and inner expension cap is connected with axle dual-purpose key two, and under free state, inner expension cap is Spielpassung with axle two.

On the described outer expansion set internal conical surface is arranged, interior circle has and axle one keyway that is connected, and circular hole or long arc-shaped holes are arranged on the outer rim, and outer expansion set is connected with axle one usefulness key one.

The outer rim of inner expension cap or outer expansion set has screw, screws in Cock screw, to make things convenient for the dismounting of coupling.

Because the junction plane between inner expension cap and the outer packing is a conical surface, this is equivalent to shrinkage fit, so can produce huge impacting force; Utilize this impacting force to come transmitting torque and axial force.Simultaneously, because inner expension cap has expansion joint (E.J.) in the axial direction, before firm bolton, inner expension cap half and axle one Spielpassung, inner expension cap can be in axle two upwards slippages, when firm bolton, the inner expension cap radial contraction closely cooperates with regard to forming between inner expension cap and the axle two.In order to adjust phase place, need to stay certain clearance between the shaft shoulder of inner expension cap half and axle two, it can be moved in the axial direction.

When needs carry out adjustment on the phase place, at first unclamp firm bolt, rotate Cock screw then inner expension cap is separated with individual expansion set, at this moment, inner expension cap becomes than loose fit with axle two, relatively rotates inner expension cap or inner expension cap, finishes inner expension cap and the adjustment of inner expension cap phase place.

Compare with traditional coupling, this phase place coupling has following effect:

1), mounting or dismounting are simple, easy to maintenance easy, simple in structure with replacing.The processing that junction plane is installed requires high-precision manufacturing tolerances unlike interference fit.Conical surface need not heat when installing, cooling or pressurized equipment, clamping bolt need only be screwed to certain moment and get final product.

2), leave certain clearance between the shaft shoulder by inner expension cap half and axle two, part can move in rotating shaft before locking and positioning easily.

3), owing to be that conical surface contact between inner expension cap and the outer expansion set, area of contact is big, between pressure big, so can transmit bigger moment, and the even distribution of loading.

Description of drawings

Fig. 1 is the utility model embodiment's a structural representation.

Fig. 2 is the inner expension cap structural representation.

Embodiment

The explanation of Fig. 1 mark: outer expansion set 1, inner expension cap 2, clamping bolt 3, axle 1, key 1, axle 26, key 27.

The explanation of Fig. 2 mark: expansion joint (E.J.) 8, long arc-shaped holes 9.

Referring to Fig. 1, the embodiment of phase place coupling of the present utility model comprises outer expansion set 1, inner expension cap 2 and clamping bolt 3, inner expension cap 2 axial directions have expansion joint (E.J.), on the inner expension cap 2 outer conical surface is arranged, on the outer expansion set 1 internal conical surface is arranged, inner expension cap 2 and outer expansion set 1 have at least one to have long arc-shaped holes, and inner expension cap 2 and outer expansion set 1 contact with conical surface, and outer expansion set 1 is connected with inner expension cap 2 usefulness clamping bolts 3.

Referring to Fig. 2, inner expension cap 2 axial directions have expansion joint (E.J.), on the inner expension cap 2 outer conical surface are arranged, interior circle has and axle 26 keyways that are connected, and circular hole or long arc-shaped holes are arranged on the outer rim, and inner expension cap 2 is connected with axle 26 usefulness keys 27, under free state, inner expension cap 2 is Spielpassung with axle 26.

On the outer expansion set 1 internal conical surface is arranged, interior circle has and axle one 4 keyways that are connected, and circular hole or long arc-shaped holes are arranged on the outer rim, and outer expansion set 1 is connected with axle one 4 usefulness keys 1.

The outer rim of inner expension cap 2 or outer expansion set 1 has screw, screws in Cock screw, to make things convenient for the dismounting of coupling.

Because the junction plane between inner expension cap 2 and the outer packing is a conical surface, this is equivalent to shrinkage fit, so can produce huge impacting force; Utilize this impacting force to come transmitting torque and axial force.Simultaneously, because inner expension cap 2 has expansion joint (E.J.) in the axial direction, before firm bolton, inner expension cap 2 half and axle one 4 Spielpassung, inner expension cap 2 can be in axle 26 upwards slippages, when firm bolton, inner expension cap 2 radial contraction closely cooperate with regard to forming between inner expension cap 2 and the axle 26.In order to adjust phase place, need to stay certain clearance between the shaft shoulder of inner expension cap 2 half and axle 26, it can be moved in the axial direction.

When needs carry out adjustment on the phase place, at first unclamp firm bolt, rotate Cock screw then inner expension cap 2 is separated with individual expansion set, at this moment, inner expension cap 2 becomes than loose fit with axle 26, relatively rotates inner expension cap 2 or inner expension cap 2, finishes inner expension cap 2 and inner expension cap 2 phase place adjustment.

Compare with traditional shaft coupling, this phase coupling has following effect:

1), mounting or dismounting are simple, easy to maintenance easy, simple in structure with replacing. The processing that faying face is installed requires high-precision manufacturing tolerance unlike interference fit. Need not heat when taper seat is installed, cooling or pressurized equipment, fastening bolt 3 need only be screwed to certain moment and get final product.

2), leave certain gap between the shaft shoulder by inner expension cap 2 half and axle 26, part can be easily mobile in rotating shaft before locking positioning.

3), owing to be that taper seat contact between inner expension cap 2 and the outer expansion set 1, contact area is big, between pressure big, so can transmit bigger moment, and the even distribution of loading.

This shaft coupling extensively model is applied in continuous cast mold vibrating mechanism and the phase-adjusted mechanism of diaxon connection needs.

Claims (1)

1. the phase place coupling comprises outer expansion set, inner expension cap and clamping bolt, it is characterized in that: the inner expension cap axial direction has expansion joint (E.J.), and outer conical surface is arranged on the inner expension cap, on the outer expansion set internal conical surface is arranged, and inner expension cap and outer expansion set have at least one to have long arc-shaped holes;

Inner expension cap contacts with conical surface with outer expansion set, and outer expansion set is connected with clamping bolt with inner expension cap.

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