Rapid drying device for powder metallurgy oil bearing machining

Abstract

The utility model discloses a quick drying device for powder metallurgy oil-retaining bearing machining, and particularly relates to the technical field of powder metallurgy oil-retaining bearing machining, the quick drying device comprises a drying box, two inner walls of the drying box are fixedly provided with gas collecting plates, the gas collecting plates are hollow, the surfaces of the gas collecting plates are provided with a plurality of exhaust holes, and the exhaust holes are communicated with the drying box. A plurality of grid plates are fixedly distributed between the two gas collecting plates from top to bottom, an air heater is fixedly installed on the rear wall of the drying box, a connecting pipe is arranged at the output end of the air heater, the outer walls of the two gas collecting plates communicate with branch pipes, a conveying pipe communicates between the two branch pipes, and a waste gas treatment structure is arranged at the top of the drying box. According to the oil bearing drying device, the oil bearing can be evenly and rapidly dried, the drying efficiency is improved, in the drying process, organic waste gas volatilized by the oil bearing can be adsorbed, influences on operators are avoided, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy oil-impregnated bearing processing technology, and more specifically, to a rapid drying device for powder metallurgy oil-impregnated bearing processing. Background Technology

[0002] Powder metallurgy oil-impregnated bearings are sintered bodies made using powder metallurgy. Their main raw material is metal powder. These bearings have a porous structure with lubricating oil stored in the pores. During operation, they can automatically lubricate themselves through frictional heat generation and suction, reducing friction and wear.

[0003] Currently, powder metallurgy oil-impregnated bearings need to be dried after production and processing to reduce their internal moisture content and improve their performance.

[0004] However, currently, when hot air drying is performed on oil-impregnated bearings, flue gas containing organic waste gas is generated. If this waste gas is discharged directly without treatment, it will not only pollute the environment but also endanger the health of operators. In view of this, this utility model proposes a rapid drying device for powder metallurgy oil-impregnated bearing processing. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rapid drying device for processing oil-impregnated bearings in powder metallurgy, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid drying device for processing oil-impregnated bearings in powder metallurgy, comprising a drying chamber, wherein two inner walls of the drying chamber are fixedly installed with air collecting plates, the air collecting plates are hollow and have several exhaust holes on their surface, and several grid plates are fixedly distributed between the two air collecting plates from top to bottom, a hot air blower is fixedly installed on the rear wall of the drying chamber, the output end of the hot air blower is provided with a connecting pipe, the outer walls of the two air collecting plates are connected to branch pipes, and a conveying pipe is connected between the two branch pipes, the output end of the hot air blower is fixedly connected to the connecting pipe, the branch pipe extends to the outside of the drying chamber, the two ends of the conveying pipe are respectively connected to the corresponding branch pipes, and one end of the connecting pipe is connected to the conveying pipe.

[0007] As can be seen, the hot air blower delivers hot air through pipes and then diverts it into the interior of the corresponding air collecting plate. Finally, it is evenly discharged through several exhaust holes on the air collecting plate, which quickly dries the oil-impregnated bearings on the grid plate and improves the drying efficiency of the oil-impregnated bearings.

[0008] To treat the exhaust gas generated during the drying of oil-impregnated bearings, preferably, the top of the drying chamber is equipped with an exhaust gas treatment structure. This structure includes a gas collection hood installed on top of and connected to the drying chamber. An air suction pump is installed on one side of the hood. The air suction pump has an intake pipe and an exhaust pipe at its intake and exhaust ends, respectively. A treatment chamber is fixedly installed on the outer wall of the drying chamber. Two activated carbon adsorption nets are horizontally installed inside the treatment chamber. An exhaust pipe connects to the bottom of the treatment chamber. The air suction pump is fixedly installed on top of the drying chamber, with its intake end connected to the exhaust pipe and its exhaust end connected to the installation pipe. One end of the installation pipe is connected to the treatment chamber.

[0009] To facilitate the disassembly and cleaning of the activated carbon adsorption mesh inside the treatment box, preferably, the outer wall of the treatment box has two installation ports. The two activated carbon adsorption meshes are respectively disassembled and assembled with the treatment box through the installation ports. A sealing plate is installed inside the installation port. The sealing plate is fixedly connected to one end of the activated carbon adsorption mesh. The sealing plate is installed inside the installation port by screws, and the sealing plate has a groove.

[0010] To improve the sealing effect of the drying oven, preferably, the drying oven has a door hinged to its surface, and a sealing ring is affixed to the surface of the door.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. By setting up a waste gas treatment structure, the air suction pump draws in air containing organic waste gas from inside the drying box through the air collection hood. The air is then transported to the inside of the treatment box through the air supply pipe and the installation pipe. The organic pollutants in the waste gas are adsorbed and treated by two activated carbon adsorption nets. The purified air is finally discharged through the exhaust pipe connected to the bottom of the treatment box, avoiding the impact of organic waste gas on the operators. At the same time, this structure allows the operators to easily disassemble and clean the activated carbon adsorption nets inside the drying box.

[0013] 2. Hot air is delivered to the inside of the conveying pipe through the connecting pipe by the hot air blower. The hot air is split to both sides in the conveying pipe, and enters the corresponding air collecting plate through two branch pipes. Finally, it is discharged through several exhaust holes on the surface of the air collecting plate. The hot air flowing from bottom to top can perform uniform and rapid drying treatment on the oil-impregnated bearings on the grid plate, improve the uniformity and scale of oil-impregnated bearing drying, and improve drying efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2This is a schematic diagram of the connection structure between the hot air blower and the air collecting plate of this utility model.

[0016] Figure 3 This is a three-dimensional schematic diagram of the waste gas treatment structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the connection structure between the activated carbon adsorption mesh and the treatment box of this utility model.

[0018] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] The attached diagram is labeled as follows: 1. Drying oven; 2. Gas collecting plate; 3. Exhaust vent; 4. Grid plate; 5. Hot air blower; 6. Connecting pipe; 7. Branch pipe; 8. Conveying pipe; 9. Gas collecting hood; 10. Suction pump; 11. Gas delivery pipe; 12. Installation pipe; 13. Processing box; 14. Activated carbon adsorption net; 15. Exhaust pipe; 16. Installation port; 17. Sealing plate; 18. Groove; 19. Box door; 20. Sealing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1-5 The device shown is a rapid drying device for processing oil-impregnated bearings in powder metallurgy. It includes a drying chamber 1. Two air collecting plates 2 are fixedly installed on the two inner walls of the drying chamber 1. The air collecting plates 2 are hollow and have several exhaust holes 3 on their surface. Several grid plates 4 are fixedly distributed from top to bottom between the two air collecting plates 2. A hot air blower 5 is fixedly installed on the rear wall of the drying chamber 1. A connecting pipe 6 is provided at the output end of the hot air blower 5. Branch pipes 7 are connected to the outer walls of the two air collecting plates 2. A conveying pipe 8 is connected between the two branch pipes 7. The output end of the hot air blower 5 is fixedly connected to the connecting pipe 6. The branch pipes 7 extend to the outside of the drying chamber 1. The two ends of the conveying pipe 8 are respectively connected to the corresponding branch pipes 7. One end of the connecting pipe 6 is connected to the conveying pipe 8.

[0022] Specifically, in this structure, the oil-impregnated bearing to be dried is placed inside the drying chamber 1 and located on multiple grid plates 4. At this time, after the hot air blower 5 is started, hot air is delivered to the inside of the conveying pipe 8 through the connecting pipe 6. The hot air is split to both sides through the conveying pipe 8 and enters the corresponding air collecting plate 2 through two branch pipes 7. The air collecting plate 2 is hollow. After the hot air enters the inside of the air collecting plate 2, it is finally discharged through multiple exhaust holes 3. Since several grid plates 4 are fixedly distributed between two air collecting plates 2, the hot air flows from bottom to top, and performs uniform and rapid drying treatment on the oil-impregnated bearing on the grid plate 4.

[0023] In this embodiment, as shown in the appendix Figure 1 , 3 As shown, a waste gas treatment structure is provided on the top of the drying chamber 1. The waste gas treatment structure includes a gas collection hood 9, which is installed on the top of the drying chamber 1 and connected to the drying chamber 1. A suction pump 10 is provided on one side of the gas collection hood 9. The suction end and exhaust end of the suction pump 10 are respectively provided with a gas delivery pipe 11 and an installation pipe 12. A treatment box 13 is fixedly installed on the outer wall of the drying chamber 1. Two activated carbon adsorption nets 14 are horizontally installed inside the treatment box 13. An exhaust pipe 15 is connected to the bottom end of the treatment box 13. The suction pump 10 is fixedly installed on the top of the drying chamber 1. The suction end of the suction pump 10 is connected to the gas delivery pipe 11, and the exhaust end is connected to the installation pipe 12. One end of the installation pipe 12 is connected to the treatment box 13.

[0024] Specifically, in this structure, during the drying process of the oil-impregnated bearing, some organic waste gas is generated. At this time, the suction pump 10 is started, which draws in the air inside the drying chamber 1 through the gas collection hood 9 and transports it to the interior of the treatment chamber 13 through the air supply pipe 11 and the installation pipe 12. The organic waste gas contained in the air enters the interior of the treatment chamber 13 along with the air. On the one hand, it can promote the flow of hot air inside the drying chamber 1, and on the other hand, it can transport the waste gas to the interior of the treatment chamber 13. The waste gas is treated by two activated carbon adsorption nets 14 and finally discharged through the exhaust pipe 15, thereby avoiding the impact of organic waste gas on the operators.

[0025] In this embodiment, as shown in the appendix Figure 3 , 4 As shown, the outer wall of the treatment box 13 has two mounting ports 16. Two activated carbon adsorption nets 14 are respectively installed and removed from the treatment box 13 through the mounting ports 16. A sealing plate 17 is installed inside the mounting port 16. The sealing plate 17 is fixedly connected to one end of the activated carbon adsorption net 14. The sealing plate 17 is installed inside the mounting port 16 by screws, and a groove 18 is provided on the sealing plate 17.

[0026] Specifically, in this structure, when it is necessary to remove and clean the activated carbon adsorption net 14, the screws at the sealing plate 17 can be removed, and the sealing plate 17 can be pulled to one side through the pull groove 18, so that the sealing plate 17 can pull the two activated carbon adsorption nets 14 out of the inside of the processing box 13 through the installation port 16, thus completing the disassembly of the activated carbon adsorption net 14.

[0027] Similarly, the two activated carbon adsorption nets 14 are installed inside the treatment box 13 through the installation port 16, and the sealing plate 17 is sealed inside the installation port 16 by screws to complete the installation of the activated carbon adsorption nets 14.

[0028] In this embodiment, as shown in the appendix Figure 1 , 5 As shown, a door 19 is hinged to the surface of the drying oven 1, and a sealing ring 20 is affixed to the surface of the door 19.

[0029] Specifically, the door 19 can create a good drying environment inside the drying oven 1, and the sealing ring 20 on the surface of the door 19 can increase the sealing with the drying oven 1 and reduce heat loss.

[0030] Working principle of this utility model:

[0031] This application provides a rapid drying device for processing oil-impregnated bearings in powder metallurgy. In specific use, first open the hinged door 19 on the surface of the drying chamber 1, place the oil-impregnated bearing to be dried on multiple grid plates 4 inside the drying chamber 1, and close the door 19. Since the sealing ring 20 is pasted on the surface of the door 19, it can increase the sealing with the drying chamber 1, reduce heat loss, and create a good drying environment inside the drying chamber 1.

[0032] Start the hot air blower 5. The hot air blower 5 delivers hot air to the inside of the conveying pipe 8 through the connecting pipe 6. The hot air is split to both sides in the conveying pipe 8 and enters the corresponding air collecting plate 2 through two branch pipes 7. Because the air collecting plate 2 is hollow, the hot air is discharged through several exhaust holes 3 on the surface of the air collecting plate 2. Because several grid plates 4 are fixedly distributed between the two air collecting plates 2, the hot air flows from bottom to top, and performs uniform and rapid drying treatment on the oil-impregnated bearings on the grid plates 4.

[0033] Organic waste gas is generated during the drying process of oil-impregnated bearings. The suction pump 10 is started, and the suction pump 10 draws in the air containing organic waste gas from the inside of the drying box 1 through the air collection hood 9. The air is transported to the inside of the treatment box 13 through the air supply pipe 11 and the installation pipe 12. This process promotes the flow of hot air inside the drying box 1 on the one hand, and transports the waste gas to the treatment box 13 for treatment on the other hand.

[0034] After the air containing organic waste gas enters the treatment box 13, it passes through two horizontally installed activated carbon adsorption nets 14 in sequence. The activated carbon adsorption nets 14 use their adsorption characteristics to adsorb the organic pollutants in the waste gas. The purified air is finally discharged through the exhaust pipe 15 connected to the bottom of the treatment box 13 to avoid the organic waste gas from affecting the operators.

[0035] When it is necessary to remove and clean the activated carbon adsorption net 14, remove the screws at the sealing plate 17, and pull the sealing plate 17 to one side through the pull groove 18 on the sealing plate 17 so that the sealing plate 17 pulls the two activated carbon adsorption nets 14 out of the treatment box 13 through the installation port 16 to complete the removal. During installation, install the two activated carbon adsorption nets 14 inside the treatment box 13 through the installation port 16, and then use screws to seal the sealing plate 17 inside the installation port 16 to complete the installation of the activated carbon adsorption nets 14.

[0036] It is worth noting that all contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures, nor will they be described here.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rapid drying device for processing oil-impregnated bearings in powder metallurgy, comprising a drying oven (1), characterized in that: The drying box (1) has two inner walls with fixedly installed air collecting plates (2). The air collecting plates (2) are hollow and have several exhaust holes (3) on their surface. Several grid plates (4) are fixedly distributed between the two air collecting plates (2) from top to bottom. A hot air blower (5) is fixedly installed on the rear wall of the drying box (1). A connecting pipe (6) is provided at the output end of the hot air blower (5). The outer walls of the two air collecting plates (2) are connected to branch pipes (7), and a conveying pipe (8) is connected between the two branch pipes (7). The top of the drying box (1) is provided with a waste gas treatment structure. The exhaust gas treatment structure includes a gas collection hood (9), which is installed on the top of the drying box (1) and connected to the drying box (1). A suction pump (10) is provided on one side of the gas collection hood (9), and the suction end and exhaust end of the suction pump (10) are respectively provided with a gas delivery pipe (11) and an installation pipe (12). The drying box (1) has a processing box (13) fixedly installed on its outer wall. Two activated carbon adsorption nets (14) are horizontally installed inside the processing box (13). The bottom of the processing box (13) is connected to an exhaust pipe (15).

2. The rapid drying device for powder metallurgy oil-impregnated bearing processing according to claim 1, characterized in that: The output end of the hot air blower (5) is fixedly connected to the connecting pipe (6), the branch pipe (7) extends to the outside of the drying box (1), the two ends of the conveying pipe (8) are respectively connected to the corresponding branch pipe (7), and one end of the connecting pipe (6) is connected to the conveying pipe (8).

3. The rapid drying device for powder metallurgy oil-impregnated bearing processing according to claim 1, characterized in that: The suction pump (10) is fixedly installed on the top of the drying box (1). The suction end of the suction pump (10) is connected to the air supply pipe (11), and the exhaust end is connected to the installation pipe (12). One end of the installation pipe (12) is connected to the processing box (13).

4. The rapid drying device for powder metallurgy oil-impregnated bearing processing according to claim 1, characterized in that: The outer wall of the treatment box (13) has two installation ports (16). Two activated carbon adsorption nets (14) are respectively installed and removed from the treatment box (13) through the installation ports (16). A sealing plate (17) is installed inside the installation port (16). The sealing plate (17) is fixedly connected to one end of the activated carbon adsorption net (14).

5. The rapid drying device for processing oil-impregnated bearings in powder metallurgy according to claim 4, characterized in that: The sealing plate (17) is installed inside the mounting port (16) by screws, and the sealing plate (17) is provided with a groove (18).

6. The rapid drying device for powder metallurgy oil-impregnated bearings according to claim 1, characterized in that: The drying oven (1) is hinged to a door (19), and a sealing ring (20) is affixed to the surface of the door (19).

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