CN205099723U - Energy -conserving thrust wheel heat treatment device - Google Patents

Abstract

An energy-saving support roller heat treatment device includes a heating furnace, a forging table, a quenching table, and a tempering furnace, and a roller conveyor belt is installed between the forging table and the tempering furnace. There are several roller shafts installed in parallel on the roller conveyor belt frame. A position sensor is installed on one side of the roller conveyor belt. There is a sprocket at one end of the roller shaft. Several sprockets form a sprocket conveyor through the chain, and the sprocket conveys There are 4-8 positioning plates installed on one side of the machine, the positioning plate is connected with the cylinder rod of the positioning cylinder, the positioning solenoid valve is installed on the high-pressure air pipe of the positioning cylinder, and 4-8 quenching covers are installed above the roller shaft, inside the quenching cover There are liquid spray cooling pipes and temperature sensors, the upper part of the quenching cover is connected with the lower end of the cylinder rod of the lifting cylinder, and the quenching cover corresponds to the positioning plate one by one. The utility model reduces the reheating of the subsequent quenching, basically operates continuously, reduces the production cycle of the supporting wheels, greatly improves the production efficiency, and significantly reduces energy consumption.

Description

An energy-saving heat treatment device for supporting rollers

technical field

The utility model relates to the technical field of mechanical processing, in particular to an energy-saving heat treatment device for supporting rollers.

Background technique

The crawler traveling device of a large mining excavator contains multiple heavy-duty supporting wheels, which require high strength and wear resistance. At present, the technology of track roller processing is divided into three steps: forging, quenching and tempering. The interval between each step is relatively long. During quenching, the blank of the track roller needs to be heated from room temperature to 820-860°C before water cooling. . This heating process consumes a large amount of electric energy, and the operation of the heating process is complicated, requiring high work skills of personnel, and requires professional heating equipment, long processing cycle, low work efficiency, and high energy consumption.

Contents of the invention

In order to overcome the above disadvantages in the prior art, the purpose of this utility model is to provide an energy-saving heat treatment device for rollers.

The energy-saving roller heat treatment device includes a heating furnace, a forging table, a quenching table and a tempering furnace, and is characterized in that a roller conveyor belt is installed between the forging table and the tempering furnace.

The roller conveyor belt includes a frame on which several rollers are installed in parallel, a position sensor is installed on one side of the roller conveyor belt, and a sprocket is installed on one end of the roller, and several sprockets form a sprocket conveyor through the chain , the sprocket conveyor makes the roller shaft rotate in situ through the chain and the sprocket. A positioning frame is installed on one side of the sprocket conveyor. There are 4-8 positioning plates on the positioning frame, and the positioning plate is connected with the cylinder rod of the positioning cylinder. The positioning solenoid valve is installed on the high-pressure air pipe of the positioning cylinder, and 4-8 quenching covers are installed above the roller shaft. There are liquid spray cooling pipes and temperature sensors in the quenching cover. The upper part of the quenching cover is connected with the lower end of the cylinder rod of the lifting cylinder. Lifting solenoid valves are installed on the high-pressure air pipe of the lifting cylinder, and the quenching cover corresponds to the positioning plate one by one. The temperature sensor, position sensor, positioning solenoid valve, lifting solenoid valve, and sprocket conveyor are all connected to the PLC controller.

During work, the original bar material of Ф80 round steel is heated to 920°C in a heating furnace, and then pre-forged, final forged, trimmed and punched to make a preliminary roller. After forging, the roller is rolled by the roller shaft The conveyor belt is sent out, controlled by the PLC controller. When the supporting roller reaches a certain set position, the positioning plate on the side of the sprocket conveyor is stretched out, and the supporting roller is positioned on the set position of the roller conveyor belt. After the number of supporting rollers on the roller conveyor belt reaches the set number, the roller conveyor belt stops, the positioning plate retracts, and the quenching cover descends to cover the supporting rollers for local spray quenching and cooling. After cooling to the set temperature, The quenching hood rises, the roller conveyor belt starts, and the quenched supporting rollers are sent to the tempering furnace, and at the same time, the forged rollers on the forging table start to enter the roller conveyor belt again, and so on.

Compared with the prior art, the utility model has the advantages that: the utility model reduces the reheating of the subsequent quenching, basically operates continuously, reduces the production cycle of the supporting wheels, greatly improves the production efficiency, and significantly reduces energy consumption, reduces It reduces the manufacturing cost and meets the requirements of energy saving, emission reduction and green production in the national policy.

Description of drawings

Fig. 1 is the front view of the utility model

Fig. 2 is the top view of the utility model

1. Forging table, 2. Quenching table, 3. Tempering furnace, 4. Roller conveyor belt, 5. Rack, 6. Roller shaft, 7. Position sensor, 8. Sprocket, 9. Chain, 10. Positioning frame , 11, positioning plate, 12, the cylinder rod of the positioning cylinder, 13, the positioning solenoid valve, 14, the quenching cover, 15, the spray cooling pipe, 16, the cylinder rod of the lifting cylinder, 17, the lifting solenoid valve.

detailed description

The present invention can be further understood by the following examples of the present invention, but the protection of the present invention is not limited thereto.

In Fig. 1 and Fig. 2, this energy-saving roller heat treatment device includes a heating furnace, a forging table 1, a quenching table 2, and a tempering furnace 3, and a roller conveyor belt 4 is arranged between the forging table 1 and the tempering furnace 3.

The roller conveyor belt 4 includes a frame 5, and several roller shafts 6 are installed in parallel on the frame 5, a position sensor 7 is installed on one side of the roller conveyor belt 4, a sprocket 8 is arranged at one end of the roller shaft 6, and several sprocket wheels 8 forms a sprocket conveyor through the chain 9. The sprocket conveyor makes the roller shaft 6 rotate in situ through the chain 9 and the sprocket 8. A positioning frame 10 is installed on one side of the sprocket conveyor. There are 5 positioning frames on the positioning frame 10. Positioning plate 11, the positioning plate 11 is connected with the cylinder rod 12 of the positioning cylinder, the positioning solenoid valve 13 is installed on the high-pressure air pipe of the positioning cylinder, five quenching covers 14 are installed above the roller shaft, and there are liquid spray cooling pipes in the quenching cover 14 15 and temperature sensor, quenching cover 14 tops are connected with the lower end of the cylinder rod 16 of lifting cylinder, and lifting electromagnetic valve 17 is installed on the high-pressure gas pipe of lifting cylinder, quenching cover 14 and positioning plate 11 correspond one by one, temperature sensor, position sensor, The positioning solenoid valve, the lifting solenoid valve, and the sprocket conveyor are all connected to the PLC controller.

The above is only a specific embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the utility model by using this concept shall be an act of violating the protection scope of the present utility model .

Claims (2)

1. an energy-saving support roller heat treatment device, comprising a heating furnace, a forging platform, a quenching platform, and a tempering furnace, is characterized in that, a roller conveyor belt is installed between the forging platform and the tempering furnace. 2. A kind of energy-saving supporting wheel heat treatment device according to claim 1, characterized in that, the roller conveyor belt comprises a frame, and several roller shafts are installed in parallel on the frame, and one side of the roller conveyor belt is installed There is a position sensor, and there is a sprocket at one end of the roller shaft. Several sprockets pass through the chain to form a sprocket conveyor. The sprocket conveyor makes the roller rotate in situ through the chain and sprockets. There are 4-8 positioning plates on the positioning frame, the positioning plate is connected with the cylinder rod of the positioning cylinder, the positioning solenoid valve is installed on the high-pressure air pipe of the positioning cylinder, and 4-8 quenching covers are installed above the roller shaft. There are liquid spray cooling pipes and temperature sensors inside. The upper part of the quenching hood is connected to the lower end of the cylinder rod of the lifting cylinder. The lifting solenoid valve is installed on the high-pressure air pipe of the lifting cylinder. The quenching hood corresponds to the positioning plate one by one. The temperature sensor, position sensor, The positioning solenoid valve, the lifting solenoid valve, and the sprocket conveyor are all connected to the PLC controller.