A waste heat utilization system of a bearing ring heat treatment equipment

Abstract

The utility model provides a kind of waste heat utilization system of bearing ring heat treatment equipment, including bearing ring cleaning machine, bearing ring dryer and bearing ring heat treatment furnace that are sequentially and side by side arranged, conveying assembly in bearing ring heat treatment furnace includes several godets, the both sides of bearing ring heat treatment furnace are equipped with protective isolation cavity and godet installation cavity, godet seat is equipped in godet installation cavity, both ends of godet are rotatably mounted in godet seat by godet bearing, air inlet and waste heat recovery pipe are equipped on protective isolation cavity, one end of waste heat recovery pipe is connected with the inside of protective isolation cavity, the other end is connected with one end of air blowing pipe by air blower, the other end of air blowing pipe is connected with the inside of bearing ring dryer.The utility model carries out drying treatment using waste heat in protective isolation cavity, reduces production cost, energy saving and environmental protection.Godet bearing is arranged in protective isolation cavity outside, can avoid godet bearing long-term in high temperature environment, delay bearing service life.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring processing technology, and in particular to a waste heat utilization system for bearing ring heat treatment equipment. Background Technology

[0002] In the heat treatment process of bearing rings, the bearing rings need to be cleaned, dried, and then heat-treated. During heat treatment, to protect the idler roller bearings on both sides of the heat treatment furnace from damage due to high temperatures, the idler roller bearings are generally placed on the outside of the furnace. While this protects the idler roller bearings, heat from the furnace can escape through the gap between the idler rollers and the furnace wall, resulting in heat waste and being detrimental to energy conservation and environmental protection. Electric heating is generally used for drying the bearing rings, which has a high production cost. Summary of the Invention

[0003] The purpose of this utility model is to provide a waste heat utilization system for a bearing ring heat treatment equipment, which can solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A waste heat utilization system for a bearing ring heat treatment equipment includes a bearing ring cleaning machine, a bearing ring drying machine, and a bearing ring heat treatment furnace arranged in parallel. The bearing ring cleaning machine, bearing ring drying machine, and bearing ring heat treatment furnace are equipped with conveying components that are sequentially connected and used to forwardly transport the bearing rings. The conveying components in the bearing ring heat treatment furnace include several idler rollers. Protective isolation chambers are provided on both sides of the bearing ring heat treatment furnace. The furnace wall and the side walls of the protective isolation chambers are provided with idler roller through-holes for the idler rollers to pass through one-to-one. The outer side of the protective isolation chamber is provided with a roller mounting cavity, in which a roller seat corresponding to each roller is provided. The two ends of the roller pass through roller perforations on the furnace wall of the bearing ring heat treatment furnace and the side wall of the protective isolation chamber, and are rotatably mounted in the roller seat through roller bearings. The protective isolation chamber is provided with an air inlet connecting the outside and the inside of the protective isolation chamber. A waste heat recovery pipe is provided on the outer side wall of the protective isolation chamber. One end of the waste heat recovery pipe is connected to the inside of the protective isolation chamber, and the other end of the waste heat recovery pipe is connected to one end of an air blowing pipe through a blower. The other end of the air blowing pipe is connected to the inside of the bearing ring dryer.

[0005] Preferably, the waste heat recovery pipe includes multiple waste heat recovery branch pipes and a waste heat recovery main pipe. The waste heat recovery main pipe has multiple inlets and one outlet. One end of each of the multiple waste heat recovery branch pipes is distributed on the upper side wall of the protective isolation cavity and communicates with the interior of the protective isolation cavity. The other end of each of the multiple waste heat recovery branch pipes is connected to an inlet of the waste heat recovery main pipe. The outlet of the waste heat recovery main pipe is connected to the inlet of the blower.

[0006] Preferably, the air blowing pipe includes multiple air blowing branch pipes and a main air blowing pipe. The main air blowing pipe has an inlet and multiple outlets. One end of each of the multiple air blowing branch pipes is distributed on the bearing ring dryer and connected to the inside of the bearing ring dryer. The other end of each of the multiple air blowing branch pipes is connected to an outlet of the main air blowing pipe. The inlet of the main air blowing pipe is connected to the outlet of the blower.

[0007] Preferably, the outer wall of the roller mounting cavity is hollowed out.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model utilizes the residual heat in the protective isolation chamber to generate hot air through the waste heat recovery pipe, blower, and air blowing pipe to dry the bearing rings in the bearing ring dryer, reducing production costs and saving energy and protecting the environment. 2. The idler roller bearing is located outside the protective isolation chamber, and the heat in the protective isolation chamber is extracted by the waste heat recovery system to keep the protective isolation chamber at a low temperature, thus playing a heat insulation role and preventing the idler roller bearing from being in a high-temperature environment for a long time, which would delay the bearing's service life. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a partial sectional view of the present invention. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0012] like Figure 1 , Figure 2As shown, this utility model provides a waste heat utilization system for a bearing ring heat treatment equipment, including a bearing ring cleaning machine 1, a bearing ring drying machine 2, and a bearing ring heat treatment furnace 3 arranged in parallel. Each of the bearing ring cleaning machine 1, bearing ring drying machine 2, and bearing ring heat treatment furnace 3 is equipped with a conveying assembly that is sequentially connected and used to transport the bearing rings forward. The conveying assembly in the bearing ring heat treatment furnace 3 includes several idler rollers 4. Protective isolation chambers 5 are provided on both sides of the bearing ring heat treatment furnace 3. The furnace wall of the bearing ring heat treatment furnace 3 and the side walls of the protective isolation chambers 5 are provided with idler roller through holes for the idler rollers 4 to pass through one-to-one. The outer side of the protective isolation chambers 5 is provided with... The idler roller mounting cavity 6 has an idler roller seat 7 corresponding to each of the idler rollers 4. The two ends of the idler roller 4 pass through the idler roller perforation holes on the furnace wall of the bearing ring heat treatment furnace 3 and the side wall of the protective isolation cavity 5, and are rotatably installed in the idler roller seat 7 through the idler roller bearing 8. The protective isolation cavity 5 has an air inlet 9 connecting the outside and the inside of the protective isolation cavity 4. The upper side wall of the protective isolation cavity 5 is provided with a waste heat recovery pipe 10. One end of the waste heat recovery pipe 10 is connected to the inside of the protective isolation cavity 5, and the other end of the waste heat recovery pipe 10 is connected to one end of the air blowing pipe 12 through the blower 11. The other end of the air blowing pipe 12 is connected to the inside of the bearing ring dryer 2.

[0013] In use, the bearing ring cleaning machine 1 is existing technology, used to clean bearing rings to remove impurities and oil stains. The bearing ring dryer 2 is also existing technology, generally using electric heating to dry the bearing rings. This invention combines the residual heat in the protective isolation chamber 5 with hot air generated by the waste heat recovery pipe 10, blower 11, and air blowing pipe 12 to dry the bearing rings in the bearing ring dryer 2. That is, electric heating and the waste heat recovery system work together to dry the bearing rings. If the drying temperature of the waste heat recovery system is insufficient, it can be supplemented by electric heating, greatly reducing production costs. Furthermore, the waste heat recovery system allows for the recovery and utilization of residual heat from the protective isolation chamber, saving energy and protecting the environment. The conveying components of the bearing ring cleaning machine 1 and the bearing ring dryer 2 are existing technology, generally conveyor belt assemblies used to transport the bearing rings forward. The bearing ring heat treatment furnace 3 is existing technology, used for heat treatment of bearing rings. The conveying assembly inside it includes several idler rollers 4. The idler rollers 4 can rotate to convey the bearing rings forward. The rotation of the idler rollers 4 can be achieved by the mutual pushing of the previously conveyed bearing rings, so as to realize the forward conveying of the bearing rings in the bearing ring heat treatment furnace 3. The rotation of the idler rollers 4 can also be achieved by setting sprockets and chains on the idler rollers 4. One of the sprockets is driven by a motor, and through the transmission of the chain, it drives several idler rollers 4 to rotate, so as to realize the forward conveying of the bearing rings in the bearing ring heat treatment furnace 3. The idler roller 4 has idler roller bearings 8 at both ends, and the idler roller bearings 8 are installed in the idler roller mounting cavity 6 outside the protective isolation cavity 5. Because the temperature in the bearing ring heat treatment furnace 3 is high, the heat in the bearing ring heat treatment furnace 3 will be transferred to the protective isolation cavity 5, and can also leak into the protective isolation cavity 5 from the gap between the idler roller perforation and the idler roller 4 in the bearing ring heat treatment furnace 3, resulting in a high temperature in the protective isolation cavity 5. Then, the heat is extracted by the waste heat recovery system, and the external cold air can enter the protective isolation cavity 5 through the air inlet 9, so that the protective isolation cavity 5 is in a low temperature state, which plays a heat insulation role. This can prevent the idler roller bearing 8 from being in a high temperature environment for a long time and delay the service life of the idler roller bearing 8.

[0014] Preferably, the waste heat recovery pipe 10 includes multiple waste heat recovery branch pipes and a waste heat recovery main pipe. The waste heat recovery main pipe has multiple inlets and one outlet. One end of each of the multiple waste heat recovery branch pipes is distributed on the upper side wall of the protective isolation cavity 5 and communicates with the interior of the protective isolation cavity 5. The other end of each of the multiple waste heat recovery branch pipes is connected to the inlet of the waste heat recovery main pipe one by one. The outlet of the waste heat recovery main pipe is connected to the inlet of the blower 11. The structure is simple.

[0015] Preferably, the air blowing pipe 12 includes multiple air blowing branch pipes and a main air blowing pipe. The main air blowing pipe has one inlet and multiple outlets. One end of each of the multiple air blowing branch pipes is distributed on the bearing ring dryer 2 and connected to the interior of the bearing ring dryer 2. The other end of each of the multiple air blowing branch pipes is connected to the outlet of the main air blowing pipe. The inlet of the main air blowing pipe is connected to the outlet of the blower 11. The structure is simple.

[0016] Preferably, the outer wall of the idler roller mounting cavity is perforated, allowing residual heat in the protective isolation cavity 5 to be transferred to the idler roller mounting cavity 6. Heat in the idler roller mounting cavity 5 can be dissipated through the perforated portion of the outer wall. While the outer wall of the idler roller mounting cavity 5 has a high chance of contact with workers, after heat dissipation, the temperature of the outer wall is insufficient to burn workers, making it safer to use. A heat insulation layer is provided on the inner wall of the protective isolation cavity 5 on the side closest to the bearing ring heat treatment furnace 3, further preventing the idler roller bearing from being in a high-temperature environment.

[0017] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A waste heat utilization system for a bearing ring heat treatment equipment, comprising a bearing ring cleaning machine, a bearing ring drying machine, and a bearing ring heat treatment furnace arranged in parallel, wherein the bearing ring cleaning machine, the bearing ring drying machine, and the bearing ring heat treatment furnace are provided with a conveying assembly that is connected in sequence and used to convey the bearing rings forward, and the conveying assembly in the bearing ring heat treatment furnace includes a plurality of idler rollers, characterized in that: The bearing ring heat treatment furnace has protective isolation chambers on both sides. The furnace wall and the side walls of the protective isolation chambers are provided with roller through-holes for the rollers to pass through. The outer side of the protective isolation chamber has a roller mounting cavity with roller seats corresponding to each roller. The two ends of the rollers pass through the roller through-holes in the furnace wall and the side walls of the protective isolation chamber and are rotatably mounted in the roller seats via roller bearings. The protective isolation chamber has an air inlet connecting the outside and the inside of the chamber. A waste heat recovery pipe is located on the outer side wall of the protective isolation chamber. One end of the waste heat recovery pipe is connected to the inside of the protective isolation chamber, and the other end is connected to one end of a blowing pipe via a blower. The other end of the blowing pipe is connected to the inside of the bearing ring dryer.

2. The waste heat utilization system of the bearing ring heat treatment equipment according to claim 1, characterized in that: The waste heat recovery pipe includes multiple waste heat recovery branch pipes and a waste heat recovery main pipe. The waste heat recovery main pipe has multiple inlets and one outlet. One end of each of the multiple waste heat recovery branch pipes is distributed on the upper side wall of the protective isolation cavity and communicates with the interior of the protective isolation cavity. The other end of each of the multiple waste heat recovery branch pipes is connected to an inlet of the waste heat recovery main pipe. The outlet of the waste heat recovery main pipe is connected to the inlet of the blower.

3. The waste heat utilization system of the bearing ring heat treatment equipment according to claim 1, characterized in that: The air blowing pipe includes multiple air blowing branch pipes and a main air blowing pipe. The main air blowing pipe has an inlet and multiple outlets. One end of each of the multiple air blowing branch pipes is distributed on the bearing ring dryer and connected to the inside of the bearing ring dryer. The other end of each of the multiple air blowing branch pipes is connected to the outlet of the main air blowing pipe. The inlet of the main air blowing pipe is connected to the outlet of the blower.

4. The waste heat utilization system of the bearing ring heat treatment equipment according to claim 1, 2, or 3, characterized in that: The outer wall of the roller mounting cavity is hollowed out.

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