CN201284803Y - Overloading clutch - Google Patents

Abstract

The utility model discloses a fork truck fork overload clutch, which comprises an input shaft, a bedplate, a friction plate A, a friction plate B, a pressure plate, a disk spring, a spring pressure plate and a lower cover. The arbor wheel of the input shaft is tightly clamped through the two friction plates. The friction plates are tightly compressed through the disk spring and the pressure plate. After an upper cover tightly compresses the disk spring, the upper cover is connected with the bedplate. When the output shaft end of an electromotor is overloaded, the disk spring is deformed so that the pressing force of the disk spring on the friction plates is not reduced; the arbor wheel of the input shaft automatically slides on the friction plates so that the torsion torque of the input shaft end is not too large, thus protecting the electromotor.

Description

The overload clutch

Technical field

The utility model relates to the freight transportation apparatus field, is specifically related to the overload clutch of a kind of fork of forklift truck mechanism.

Background technique

Jam may take place or run into obstacle in fork of forklift truck in telescopic process, produce overload, and motor is caused damage.The overload clutch of fork of forklift truck mechanism belongs to safety clutch, and safety clutch is to guarantee that torque transmitted or rotating speed are no more than the clutch of its limit value, is mainly used in the big overload and the transmission system of serious impact may take place in the work.

The model utility content

The purpose of this utility model is in order to prevent fork of forklift truck when work, the situation breaking-up motor of big overload to take place.The utility model has adopted at the motor output shaft end overload clutch has been set, and makes the motor can be because of the long term overloading damage of generating heat.

The overload clutch comprises input shaft, base, friction plate A, friction plate B, compressing tablet, belleville spring, spring pressuring plate, loam cake.Described friction plate A, base pass first end that is connected with motor output shaft on the input shaft successively, and wherein friction plate A contacts with the arbor wheel lower surface of input shaft; Described friction plate B, compressing tablet, belleville spring, spring pressuring plate, loam cake pass second end that is connected with workpiece on the input shaft successively, friction plate B closely contacts with the upper surface of arbor wheel, and described loam cake compresses the back with belleville spring and is connected with base through screws.

Advantage of the present utility model is:

(1) the overload clutch is simple in structure, stable working;

(2) but the present invention's continuity is strong, can be applicable to the machinery that other need overload protection.

Description of drawings

Fig. 1 is the cross-sectional view of overload clutch among the present invention;

Among the figure: 1-input shaft, 2-base, 3-friction plate A, 301-friction plate B, 4-compressing tablet, 5-belleville spring, 6-spring pressuring plate, 7-loam cake, 8-arbor wheel, 9-the first end, 10-the second end.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

The utility model is a kind of overload clutch, and as shown in Figure 1, the overload clutch comprises input shaft 1, base 2, friction plate A3, friction plate B301, compressing tablet 4, belleville spring 5, spring pressuring plate 6, loam cake 7.Described input shaft 1 has first end 9 that is connected with the output shaft of motor, arbor wheel 8 and second end 10 that is used for output motor kinetic energy, described base 2 and friction plate A3 pass first end 9 of input shaft 1 successively, friction plate A3 is contacted with the lower surface of arbor wheel 8, friction plate B301, compressing tablet 4, belleville spring 5, spring pressuring plate 6, loam cake 7 passes second end 10 successively, make friction plate B301 contact with the upper surface of arbor wheel 8, loam cake 7 and lower cover 2 closely are connected by screw, and the elastic energy of utilizing the resiliently deformable of belleville spring 5 to produce clamps friction plate A3 and friction plate B301 closely with arbor wheel 8.

Described first end 9 is connected with the output shaft of motor; second end 10 is connected with workpiece; after motor work; motor output shaft drives the motion of overload clutch; and through the work of overload clutch transmission workpiece; after the motor output shaft end is subjected to bigger overload; belleville spring 5 produces deformation; cause the impacting force of 5 pairs of friction plates 3 of belleville spring not reduce; the arbor wheel 8 of input shaft 1 skids between friction plate A3, friction plate B301 automatically; make the input shaft 1 end moment of torsion can be not excessive, thereby play the effect of safety protection motor.

Claims (1)

1, the overload clutch is characterized in that: comprise input shaft, base, friction plate A, friction plate B, compressing tablet, belleville spring, spring pressuring plate, loam cake; Described friction plate A, base pass first end that is connected with motor output shaft on the input shaft successively, and wherein friction plate A contacts with the arbor wheel lower surface of input shaft; Described friction plate B, compressing tablet, belleville spring, spring pressuring plate, loam cake pass second end that is connected with workpiece on the input shaft successively, friction plate B closely contacts with the upper surface of arbor wheel, and described loam cake compresses the back with belleville spring and is connected with base through screws.

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