Bimetal brake drum blackening treatment water tank

Abstract

The utility model relates to the field of brake drum processing, in particular to a bimetal brake drum blackening treatment water tank which comprises a water tank body containing blackening liquid, a supporting bottom grate used for preventing a brake drum workpiece from touching the bottom is arranged on the inner side of the bottom of the water tank body, and a stand column type spiral cooling coil is arranged in the water tank body. The cooling coil is arranged above the supporting bottom grate, a water inlet and a water outlet are formed in the two ends of the cooling coil respectively and externally connected to a cooling water pipe network through water inlet and outlet pipes respectively, an electric control valve is arranged on the water inlet, a mounting frame is connected to the upper portion of the outer side wall of the water tank body, and an electric control box is arranged on the mounting frame. A temperature sensor is arranged on the inner side of the water tank body, and the temperature sensor and the electric control valve are both electrically connected with the electric control box. According to the blackening treatment water tank, the boiling problem of blackening liquid is solved through combination of brake drum centrifugal casting waste heat heating and cooling coil cooling, and the bottoming problem of a workpiece and the water tank is avoided through the supporting bottom grate.

Description

Technical Field

[0001] The utility model belongs to the technical field of brake drum processing, and in particular relates to a blackening treatment water tank for a bimetallic brake drum. Background Art

[0002] The brake is a component in the braking system that produces a braking force that hinders the movement or movement trend of the vehicle. Common brakes are mainly divided into two categories: drum brakes and disc brakes. The brake drum is generally formed in one piece by a drum disc stamped from a steel plate and a cast iron drum ring. The brake drum is an important friction pair of the drum brake. In addition to having the strength and rigidity required as a component, it should also have a friction coefficient as high and stable as possible, as well as good wear resistance, heat resistance, heat dissipation, corrosion resistance and heat capacity. Black oxidation treatment, referred to as blackening treatment, is a common means of chemical surface treatment. The principle is to produce a layer of oxide film on the metal surface to isolate the air and achieve the purpose of rust and corrosion prevention. The brake drum is exposed to the air and used in a very poor environment, which is very easy to cause rust and corrosion. Therefore, the brake drum requires outer cylindrical coating. Spray painting is a common means, but spray painting has a greater impact on the environment and is difficult to adapt to the increasingly stringent safety and environmental protection requirements. Therefore, with the development of anti-corrosion technology, more and more manufacturers use blackening treatment instead of spray painting in the anti-corrosion treatment of brake drums. Blackening treatment generally requires the use of a blackening water tank, and the temperature of the blackening liquid needs to be reasonably controlled during the blackening treatment, otherwise the blackening effect will be affected. Existing blackening water tanks use electric heating or steam heating, which has high heating energy consumption costs, and the cooling response speed of the blackening liquid is slow. The blackening liquid temperature is often too high, causing the blackening liquid to boil, resulting in unsatisfactory blackening effect. The boiling and overflowing blackening liquid, as well as the blackening liquid steam evaporating into the air, will also pollute the environment and be detrimental to the health of the workers; and during the current blackening treatment, the brake drum workpiece is in direct contact with the bottom of the water tank. However, during the blackening process, some impurities will continue to settle and accumulate at the bottom of the water tank, which will also pollute the workpiece to a certain extent and affect the blackening treatment effect of the brake drum. Utility Model Content

[0003] In view of the above situation, the utility model provides a bimetallic brake drum blackening treatment water tank, which can solve the boiling and bottoming problems commonly existing in the blackening water tank in the prior art, and is conducive to ensuring the blackening treatment effect of the brake drum workpiece.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A bimetallic brake drum blackening treatment water tank comprises a water tank body for containing blackening liquid, a supporting bottom grate for preventing the brake drum workpiece from touching the bottom is arranged on the inner side of the bottom of the water tank body, a columnar spiral cooling coil is arranged inside the water tank body, the cooling coil is placed above the supporting bottom grate, a water inlet and a water outlet are respectively arranged at both ends of the cooling coil, and the inlet and the outlet are respectively connected to the cooling water network through inlet and outlet pipes.

[0006] Furthermore, the water tank body is a rectangular box structure with an open top formed by welding steel plates, and the blackening liquid is contained inside the water tank body, and the entire cooling coil is immersed in the blackening liquid.

[0007] Furthermore, the supporting bottom grate includes two support rods extending in the front-to-rear direction, respectively arranged at the left and right ends of the inner side of the water tank body, and a plurality of long grate plates extending in the left-to-right direction are arranged in parallel above the two support rods. The brake drum workpiece is placed above the supporting bottom grate to avoid direct contact with the bottom of the water tank body.

[0008] Furthermore, the two water inlet and outlet pipes of the cooling coil are led to the upper edge of the mouth of the water tank body through multiple turning elbows.

[0009] Furthermore, an electric regulating valve is provided on the water inlet, a mounting bracket is connected to the upper side wall of the water tank body, an electric control box is provided on the mounting bracket, a temperature sensor is provided inside the water tank body, and the temperature sensor and the electric regulating valve are both electrically connected to the electric control box.

[0010] Furthermore, water tank legs are provided below the bottom of the water tank body for supporting the entire water tank body in the air so that the bottom of the water tank body is off the ground.

[0011] The present invention also includes other components that enable it to be used normally, which are all conventional means in the field. In addition, devices or components not limited in the present invention, such as temperature sensors, electric regulating valves, cooling coils, cooling water pipe networks, and electric control boxes and their internal automatic temperature control system settings, all adopt the existing technology in the field.

[0012] The beneficial effects of the utility model are as follows:

[0013] The bimetallic brake drum blackening treatment water tank provided by the utility model can utilize the residual temperature of the brake drum during centrifugal casting to heat the blackening liquid, and adjust the flow of the cooling coil through the automatic temperature control system to cool down the temperature in time, thereby accurately controlling the temperature of the blackening liquid, and supporting the brake drum workpiece through the supporting bottom grate to avoid direct contact between the workpiece and the bottom of the water tank, thereby solving the boiling and bottoming problems commonly existing in the blackening water tank in the prior art, and being beneficial to ensuring the blackening treatment effect of the brake drum workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the blackening treatment water tank of the bimetallic brake drum in the embodiment.

[0015] Figure 2 for Figure 1 Schematic diagram of the top view of the blackened water tank of the bimetallic brake drum. DETAILED DESCRIPTION

[0016] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments.

[0017] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and the like indicating directions or positional relationships are based on the accompanying drawings and are only for the convenience of description.

[0018] Example

[0019] like Figure 1-2 As shown, a bimetallic brake drum blackening treatment water tank comprises a water tank body 1 for containing blackening liquid, a supporting bottom grate 2 for preventing the brake drum workpiece from touching the bottom is arranged on the inner side of the bottom of the water tank body, a columnar spiral cooling coil 3 is arranged inside the water tank body, the cooling coil is placed above the supporting bottom grate, and a water inlet and a water outlet are arranged at both ends of the cooling coil, and the inlet and the outlet are respectively connected to the cooling water network through the inlet and outlet pipes. The cooling water network can utilize the existing tap water network system of the brake drum production system, which is the existing technology, and the specific setting is not repeated here.

[0020] The water tank body is a rectangular box structure with an open top formed by welding steel plates, and blackening liquid is contained inside the water tank body. The entire cooling coil is immersed in the blackening liquid. During the blackening treatment, the brake drum workpiece is placed above the supporting bottom grate and between the cooling coil.

[0021] The supporting bottom grate includes two supporting rods 2-1 extending in the front-to-back direction, respectively arranged at the left and right ends of the inner side of the water tank body. The supporting rods are made of square steel pipes. A plurality of long grate plates 2-2 extending in the left-to-right direction are arranged in parallel above the two supporting rods. The brake drum workpiece is placed above the supporting bottom grate to prevent the workpiece from directly touching the bottom of the water tank body and to prevent precipitated impurities from contaminating the workpiece.

[0022] The two inlet and outlet water pipes of the cooling coil are led to the upper edge of the mouth of the water tank body through multiple turning elbows, avoiding drilling through the side wall of the water tank body, reducing the difficulty of manufacturing the water tank body, and also facilitating the connection with the external cooling water pipe network.

[0023] The water inlet is provided with an electric regulating valve 4, a mounting frame 5 is connected to the upper side wall of the water tank body, an electric control box 6 is provided on the mounting frame, a temperature sensor 7 is provided inside the water tank body, and the temperature sensor and the electric regulating valve are both electrically connected to the electric control box. The temperature sensor is used to detect the temperature of the blackening liquid inside the water tank body, and transmit the detected temperature signal to the automatic temperature control system of the electric control box, and then the electric control box adjusts the cooling water flow of the electric regulating valve at the water inlet of the cooling coil to achieve temperature control of the blackening liquid temperature increase or cooling, thereby ensuring the blackening treatment effect of the workpiece.

[0024] Water tank legs 8 are also provided below the bottom of the water tank body. The water tank legs are two channel steels extending in the front-to-back direction and provided below the left and right ends of the water tank body. The water tank legs are used to support the entire water tank body in the air so that the bottom of the water tank body leaves the ground, thereby reducing heat transfer between the blackening liquid in the water tank body and the ground, and reducing unnecessary energy loss of blackening liquid temperature control.

[0025] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Without departing from the scope and spirit of the described embodiments, many modifications and changes are obvious to ordinary technicians in this technical field. Any technical deformation made within the spirit and principles of the present invention falls within the protection scope of the present invention.

Claims

1. A bimetallic brake drum blackening treatment water tank, comprising a water tank body containing blackening liquid, Features: A supporting bottom grate is arranged on the inner side of the bottom of the water tank body for preventing the brake drum workpiece from touching the bottom. A columnar spiral cooling coil is arranged inside the water tank body. The cooling coil is placed above the supporting bottom grate. A water inlet and a water outlet are respectively arranged at both ends of the cooling coil. The water inlet and the water outlet are respectively connected to the cooling water network through inlet and outlet pipes.

2. A bimetallic brake drum blackening treatment water tank according to claim 1, Features: The water tank body is a rectangular box structure with an open top formed by welding steel plates.

3. A bimetallic brake drum blackening treatment water tank according to claim 2, Features: The supporting bottom grate comprises two supporting rods extending in the front-rear direction respectively arranged at the left and right ends of the inner side of the water tank body, and a plurality of long grate plates extending in the left-right direction are arranged in parallel above the two supporting rods.

4. A bimetallic brake drum blackening treatment water tank according to claim 3, Features: The two water inlet and outlet pipes of the cooling coil are both led to the upper edge of the mouth of the water tank body.

5. A bimetallic brake drum blackening treatment water tank according to claim 4, Features: An electric regulating valve is arranged on the water inlet, a mounting frame is connected to the upper side wall of the water tank body, an electric control box is arranged on the mounting frame, a temperature sensor is arranged inside the water tank body, and the temperature sensor and the electric regulating valve are both electrically connected to the electric control box.

6. A bimetallic brake drum blackening treatment water tank according to claim 5, Features: Water tank legs are also arranged below the bottom of the water tank body.

7. A bimetallic brake drum blackening treatment water tank according to claim 6, Features: The water tank legs are two channel steels extending in the front-rear direction.

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