CN203189575U

CN203189575U - Anti-cracking brake drum with spiral heat radiation

Info

Publication number: CN203189575U
Application number: CN 201220628740
Authority: CN
Inventors: 张启龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-26
Filing date: 2012-11-26
Publication date: 2013-09-11
Anticipated expiration: 2022-11-26

Abstract

Provided is an anti-cracking brake drum with spiral heat radiation. The outer circle of the brake drum is processed with a spiral arc-shaped groove, and a preheated fastener winds around the spiral groove, and then rapid welding is conducted, and thereby the heat radiation and anti-cracking performance of the brake drum are greatly improved. Accordingly, the problem of a heavy truck that a brake drum is cracked or explodes by watering due to being driven in severe road situations (like heavy load, continuous downhill driving, curves and others) can be resolved.

Description

Spiral heat dissipation anticracking brake drum

Technical field

Technical solutions of the utility model are by machining, and means such as prestressing force fastening piece winding significantly improve the brake drum cracking resistance, are applied to heavily block the automobile brake drum industry.

Background technique

Big owing to heavily blocking carload at present, inertia is big, the braking force that needs during parking is also big, particularly exist, heavy duty, bend, the descending highway section is severeer to the test of brake drum, the brake drum cracking often appears, the brake drum heating is to blowing out, water situation such as burst and accidents caused of brake drum heating, and general brake drum adopts the grey cast iron manufacturing mostly, it is low that grey cast iron has a cost, good casting property, characteristics such as not yielding, shortcoming is that fragility is big, intensity is low, easy to crack, the rapid cooling of being heated easily bursts, also there are the cast steel of employing or cast steel to inlay technologies such as cast iron, though solved cracking, burst problem, yielding but the cast steel brake drum is heated, vow that circle influences braking ability, manufacture cost is also high, the utility model is exactly under the prerequisite that keeps grey cast iron brake drum characteristic, solves cracking and bursts problem by machining manufacturing means.

Summary of the invention

In order to solve common brake drum in the excessive cracking of braking force and the long-time problem of watering and bursting of braking of vehicle heavy duty descending, the utility model mainly is exactly by the car spiral chute, increases the purpose that spiral fastener plays heat radiation and fastening anticracking.

The technological scheme that its technical problem that solves the utility model adopts is: brake drum body cylindrical car arc spiral groove, fastening piece are wrapped in the brake drum spiral chute and welding.

The beneficial effects of the utility model are: keep that common brake drum cost is low, under the good manufacturability, not yielding, prerequisite that wear resistance is good, increased the thermal diffusivity of brake drum and significantly improved the performance of its anti-cracking and anti-cracking.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the former figure of body of the present utility model.

Fig. 2 is processing accessories figure of the present utility model.

Fig. 3 is the partial enlarged drawing of processing accessories figure of the present utility model.

Fig. 4 is that product of the present utility model is always schemed.

Fig. 5 is the partial enlarged drawing of the total figure of product of the present utility model.

1 brake drum body among the figure, 2 fastening pieces.

Embodiment

Brake drum body (1) among Fig. 1 is clamped on the C630 lathe, car goes out circular arc R 3 and is 6 millimeters spiral chute 20 circles, becomes Fig. 2 for 0.5-1 millimeter, pitch deeply, again with fastening piece among Fig. 4 (2) preheating, the good spiral chute of ahead running is wound into 20 circles on the cylindrical of brake drum body (1), and welding, guarantee that every circle has the solder joint of 4 uniform 12 millimeters long, cut off reinforcing bar after having welded, these parts are unloaded get final product.

Claims

1. spiral heat dissipation anticracking brake drum is that fastening piece is wrapped in car and has on the spiral fluted brake drum body cylindrical, and it is characterized in that: fastening piece is wrapped in car to be had on the brake drum body of arc spiral groove.

2. spiral heat dissipation anticracking brake drum according to claim 1 is characterized in that: brake drum body cylindrical car arc spiral groove, fastening piece twines and welding along spiral chute.