CN204692523U - Power assistance pump for steering belt pulley - Google Patents

Abstract

The utility model relates to a kind of power assistance pump for steering belt pulley, belongs to auto parts and components field.Power assistance pump for steering belt pulley comprises belt pulley, uniform through hole over pulleys carried and mounting hole, setting teeth groove over pulleys carried; The belt pulley matrix that belt pulley comprises pulley body, extend to a lateral buckling from pulley body, the pulley end body extended to a lateral buckling from belt pulley matrix; Fillet radius between pulley body and belt pulley matrix is 2mm; Fillet radius between belt pulley matrix and pulley end body is 5mm; Teeth groove comprise from pulley end end of body extend to side first raised, from first raised to opposite side bending extend second raised; Angle between first projection and the second projection is 36 °; Fillet radius between first projection and the second projection is 2mm.It is light, cheap that the utility model has quality, the advantage that intensity is high, not only ensured that the quality of product also assures that the intensity of product, not only reduce complete vehicle weight, one of automobile lightweight approach, and can reduce costs, improve car load and competition of the same trade.

Description

Power assistance pump for steering belt pulley

Technical field

The utility model relates to auto parts and components field, particularly a kind of power assistance pump for steering belt pulley.

Background technique

In recent years, domestic labor cost constantly improves, machined part cost is more and more higher, power assistance pump for steering belt pulley but still adopts ironcasting belt pulley mostly, machining done by part, skiver's duration, processing cost is high, manufacturing efficiency is low, belt pulley toothed surfaces in machining process, find that there is pore and husky hole causes part rejection, in addition, cast iron belt pulley structure weight, take material, thus rotary inertia is large, balance quality is bad, Balance Treatment need be done, the slippage of vee belt and race is large, belt life is relatively short, the working life of bent axle can be reduced under the influence of centrifugal force in high-speed rotation, the vibrations of complete machine are also larger, even if there is minority producer to adopt spun type power assistance pump for steering belt pulley, but because spun type belt pulley is thinner, there is the situation of insufficient strength in use.

Summary of the invention

In order to solve the problem of prior art, the utility model embodiment provides one, and to have quality light, cheap, the power assistance pump for steering belt pulley of the advantage that intensity is high.Described technological scheme is as follows:

The utility model embodiment provides a kind of power assistance pump for steering belt pulley, and described power assistance pump for steering belt pulley comprises belt pulley, be distributed on through hole on described belt pulley and mounting hole, the teeth groove be arranged on described belt pulley;

The belt pulley matrix that described belt pulley comprises pulley body, extend to a lateral buckling from described pulley body, the pulley end body extended to a lateral buckling from described belt pulley matrix; Fillet radius between described pulley body and described belt pulley matrix is 2mm; Fillet radius between described belt pulley matrix and described pulley end body is 5mm;

Described through hole is provided with four, and the angle between every two through holes is 90 °; Described mounting hole is provided with four, and the angle between every two mounting holes is also 90 °;

Described teeth groove comprise from described pulley end end of body extend to side first raised, from described first raised to opposite side bending extend second raised; Angle between described first projection and described second projection is 36 °; Fillet radius between described first projection and described second projection is 2mm.

The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:

Preparation process is simple, surface production flow harden, and tissue density improves, and the intensity hardness of wheel rooved face is improved, and dimensional accuracy is high, the slippage of vee belt and race is little, and belt life is long, and aesthetic in appearance; In use, because weight is lighter than cast iron belt pulley, in high-speed rotation, greatly reduce centrifugal force, improve bearing, the working life of bent axle, reduce the vibrations of complete machine; There is quality light, cheap, the advantage that intensity is high, not only ensured that the quality of product also assures that the intensity of product, not only reduced complete vehicle weight, one of automobile lightweight approach, and can reduce costs, improve car load and competition of the same trade.

Accompanying drawing explanation

In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the power assistance pump for steering belt pulley that the utility model embodiment provides;

Fig. 2 is the side view of the power assistance pump for steering belt pulley that the utility model embodiment provides.

Embodiment

For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.

Embodiment

The utility model embodiment provides a kind of power assistance pump for steering belt pulley, see Fig. 1, Fig. 2, described power assistance pump for steering belt pulley is by cold rolled sheet rotary press modelling, and described power assistance pump for steering belt pulley comprises belt pulley 1, be distributed on through hole 2 on belt pulley 1 and mounting hole 3, the teeth groove 4 be arranged on belt pulley 1;

The belt pulley matrix 12 that belt pulley 1 comprises pulley body 11, extend to a lateral buckling from pulley body 11, the pulley end body 13 extended to a lateral buckling from belt pulley matrix 12; Fillet radius between pulley body 11 and belt pulley matrix 12 is 2mm; Fillet radius between belt pulley matrix 12 and pulley end body 13 is 5mm;

Through hole 2 is provided with four, and the angle between every two through holes 2 is 90 °; Mounting hole 3 is provided with four, and the angle between every two mounting holes 3 is also 90 °;

Teeth groove 4 comprise extend to side from pulley end body 13 end first raised 41, extend to opposite side bending from first raised 41 second raised 42; Angle between first projection 41 and the second projection 42 is 36 °; Fillet radius between first projection 41 and the second projection 42 is 2mm.

The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:

Preparation process is simple, surface production flow harden, and tissue density improves, and the intensity hardness of wheel rooved face is improved, and dimensional accuracy is high, the slippage of vee belt and race is little, and belt life is long, and aesthetic in appearance; In use, because weight is lighter than cast iron belt pulley, in high-speed rotation, greatly reduce centrifugal force, improve bearing, the working life of bent axle, reduce the vibrations of complete machine; There is quality light, cheap, the advantage that intensity is high, not only ensured that the quality of product also assures that the intensity of product, not only reduced complete vehicle weight, one of automobile lightweight approach, and can reduce costs, improve car load and competition of the same trade.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (1)

1. a power assistance pump for steering belt pulley, is characterized in that,

Described power assistance pump for steering belt pulley comprises belt pulley, be distributed on through hole on described belt pulley and mounting hole, the teeth groove be arranged on described belt pulley;

The belt pulley matrix that described belt pulley comprises pulley body, extend to a lateral buckling from described pulley body, the pulley end body extended to a lateral buckling from described belt pulley matrix; Fillet radius between described pulley body and described belt pulley matrix is 2mm; Fillet radius between described belt pulley matrix and described pulley end body is 5mm;

Described through hole is provided with four, and the angle between every two through holes is 90 °; Described mounting hole is provided with four, and the angle between every two mounting holes is also 90 °;

Described teeth groove comprise from described pulley end end of body extend to side first raised, from described first raised to opposite side bending extend second raised; Angle between described first projection and described second projection is 36 °; Fillet radius between described first projection and described second projection is 2mm.