CN2831600Y

CN2831600Y - Retarder rotor

Info

Publication number: CN2831600Y
Application number: CN 200520073348
Authority: CN
Inventors: 王光太; 陈传松
Original assignee: Guangtai Ind Co ltd Anhui
Current assignee: Guangtai Ind Co ltd Anhui
Priority date: 2005-07-01
Filing date: 2005-07-01
Publication date: 2006-10-25
Anticipated expiration: 2015-07-01

Abstract

The utility model discloses a kind of retarder rotor, rotor comprises the column cavity that can hold stator, one end of the housing of its tubing string shape has the flange that links to each other with rotor flange, the outer surface of described housing is provided with the fin of projection, described fin is arranged along the outer surface helical form dextrorotation of housing, the utility model is fit to be installed on the vehicle of front-mounted engine, when decelerator is worked, rotor rotation sucks cold wind and cold wind is blown into engine one side, when rotor self obtains cooling off, also auxiliary engine and the gearbox of having cooled off.

Description

Retarder rotor

Technical field

The utility model relates to a kind of deceleration device, specifically just is mounted in the squirrel-cage electromagnetic retarder on motorbus or the heavy-duty freight car.

Background technology

Current vortex retarder is that a kind of high-strength electromagnetic force, combination disk are braked the equipment of the effect that reaches slow with the braking force that electromagnetic force is converted to eddy current.At aspects such as technology, safety and noises, current vortex retarder has shown and obviously has been better than traditional drum and disc brake apparatus at present, has therefore obtained fast development at auto industry field.The rapid increase of especially large-scale, heavily loaded, long-distance vehicle, current vortex retarder shows its special advantages especially.

Yet, present current vortex retarder is also just with the basic problem that solves car brakeing, because the fin that the surface of its rotor is provided with is the whole outer surface that is covered with rotor, must cause rotor weight to increase the weight of like this, make the weight of whole retarder increase, this has also increased the manufacturing cost of product.In addition, the fin that is provided with on it all is straightedge shapes, so its radiating effect is limited, especially when mounted retarder is very near apart from vehicle motor and gearbox, self also can produce a part of heat during its work, because of can not in time dispelling the heat, will influence the operate as normal of engine and gearbox.

Summary of the invention

The purpose of this utility model just provides a kind of retarder rotor that can effectively help the quick cooling of self to engine, the auxiliary cooling of gearbox enforcement simultaneously.

For achieving the above object, the present invention has adopted following technical scheme: a kind of retarder rotor, it is characterized in that: described rotor comprises the column cavity that can hold stator, one end of the housing of its tubing string shape has with rotor sends out a blue orchid that links to each other, the outer surface of described housing is provided with the fin of projection, and described fin is arranged along the outer surface helical form dextrorotation of housing.

As shown from the above technical solution, the utility model is the improvement that existing retarder rotor structure is carried out, be exactly that fin is arranged along the outer surface helical form dextrorotation of housing, the utility model is fit to be installed on the vehicle of front-mounted engine, the utility model is suitable for the situation of engine mounting vehicle front end in other words, when decelerator is worked, rotor rotation sucks cold wind and cold wind is blown into engine one side, when rotor self obtains cooling off, also auxiliary engine and the gearbox of having cooled off.

Summary of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the local enlarged diagram of the I portion among Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is that the utility model is installed in the user mode schematic diagram on the vehicle.

Embodiment

As Fig. 1, shown in 2, the rotor 10 of squirrel-cage electromagnetic retarder rotor comprises the column cavity that can hold stator, one end of the housing 11 of its tubing string shape has with rotor sends out a blue orchid 12 that links to each other, send out orchid and other parts are connected on the decelerator by rotor, the outer surface of described housing 11 is provided with the fin 13 of projection, described fin 13 is arranged along the outer surface helical form dextrorotation of housing 11, so-called dextrorotation can be understood in the following manner: the observer is positioned at engine and gearbox one side faces toward rotor 10, the rotation direction of epitrochanterian fin 13 is for to the right, i.e. clockwise direction; Fin 13 concentrates on the middle part of housing 11, and there is the annular narrow limit 14 that is lower than fin 13 both sides.The narrow hem width degree that both sides are reserved should be by considering the magnetic field range that stator coil produces, and the width of described in other words fin 13 conforms to the size along the axial length direction of electromagnetic retarder stator.Simultaneously in conjunction with Fig. 4, when electromagnetic retarder installation and engine and gearbox 20 are arranged in the situation of vehicle front, decelerator work, rotor 10 rotates by the direction shown in the arrow A, suck cold wind and cold wind is blown into engine and gearbox 20 1 sides this moment, as shown by arrow B, when rotor 10 self obtains cooling off, also auxiliary engine and the gearbox 20 of having cooled off.

In order to strengthen and to improve radiating efficiency, the cross section of described fin 13 is a corrugated, can obtain big as far as possible area of dissipation like this, shown in Fig. 2,3, has solved the problem of temperature rise of rotor 10 effectively.

Claims

1, a kind of retarder rotor, it is characterized in that: described rotor (10) comprises the column cavity that can hold stator, one end of the housing of its tubing string shape (11) has with rotor sends out blue blue (12) that link to each other, the outer surface of described housing (11) is provided with the fin (13) of projection, and described fin (13) is arranged along the outer surface helical form dextrorotation of housing (11).

2, retarder rotor according to claim 1 is characterized in that: described fin (13) concentrates on the middle part of housing (11), and there is the annular narrow limit (14) that is lower than fin (13) both sides.

3, retarder rotor according to claim 2 is characterized in that: the width of described fin (13) conforms to the size along the axial length direction of electromagnetic retarder stator.

4, retarder rotor according to claim 1 and 2 is characterized in that: the cross section of described fin (13) is a corrugated.