Double-station oil-impregnated bearing oiling device

Abstract

This utility model provides a dual-station oil-impregnated bearing immersion device. The immersion device includes a vacuum pump fixedly mounted on a frame, a first immersion device and a second immersion device symmetrically arranged on both sides of the vacuum pump for immersing the oil-impregnated bearing. The first immersion device includes an immersion tank fixedly mounted on the frame and connected to the vacuum pump, an opening and closing device on the immersion tank for opening the immersion tank, a shelf inside the immersion tank for placing the oil-impregnated bearing, an oil circulation device at the bottom of the immersion tank for circulating lubricating oil, and a pressure gauge and a pressure relief valve at the top of the immersion tank. The dual-station oil-impregnated bearing immersion device disclosed in this utility model has a simple structure, is easy to operate, and has high processing efficiency. The dual-station vacuum tank immersion structure can not only greatly improve the processing efficiency of the product, but also allow the lubricating oil to penetrate into the bearing very well.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy parts processing technology, specifically a dual-station oil-impregnated bearing immersion device. Background Technology

[0002] Oil-impregnated bearings, also known as porous bearings, use metal powder as the main raw material. They are sintered bodies made by powder metallurgy, which are inherently porous. They also have the technical advantage of being able to freely adjust the number, size, shape and distribution of pores during the manufacturing process. In production, the bearing is immersed in 10%-40% (volume fraction) of lubricating oil to make oil-impregnated bearings, taking advantage of the porosity of the sintered body.

[0003] In existing technologies, bearings are lubricated by manual immersion or mechanical spraying. However, mechanical spraying is prone to oil waste, and insufficient spraying can result in the bearing's oil content failing to meet operating requirements. During production, since metal parts need to be mass-produced, manual immersion is not only inconvenient to operate but also has low production efficiency. Therefore, existing technologies suffer from the problem that lubricating oil cannot fully penetrate the bearing and that production efficiency is low. Thus, there is an urgent need to design an immersion device that can fully immerse oil-impregnated bearings. Utility Model Content

[0004] This utility model proposes a dual-station oil-impregnated bearing immersion device. By adopting a dual-station immersion structure, the processing efficiency of the product can be greatly improved. The structure of vacuum immersion in the immersion tank can effectively allow the lubricating oil to penetrate into the bearing, thus effectively solving the problems in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A dual-station oil-impregnated bearing immersion device includes a frame and immersion devices fixedly mounted on the frame. The immersion devices include a vacuum pump fixedly mounted on the frame, and a first immersion device and a second immersion device symmetrically arranged on both sides of the vacuum pump for immersing the oil-impregnated bearing. The first immersion device includes an immersion tank fixedly mounted on the frame and connected to the vacuum pump, an opening and closing device on the immersion tank for opening the immersion tank, a shelf inside the immersion tank for placing the oil-impregnated bearing, and an oil reservoir at the bottom of the immersion tank for lubricating oil circulation. The oil immersion tank includes a circulation device, a pressure gauge and a pressure relief valve installed on the top of the tank, and the tank itself includes a circular tank body fixedly mounted on a frame, a first annular extension at the opening of the tank body, a tank cover adapted to the tank body, and a second extension at the bottom of the tank cover adapted to the first extension. The opening and closing device includes a handle fixedly mounted on the outer circumference of the tank cover for lifting the tank cover, a locking structure with three points evenly distributed on the outer surface of the tank body for sealing and closing the tank body and the tank cover, and an assistive opening structure between the tank body and the tank cover.

[0007] Furthermore, the locking structure includes a U-shaped locking block hinged to the outer surface of the can body at one end, a locking bolt rotatably connected to the locking block, and a positioning hole opened on the upper surface of the second extension for the locking bolt to be threadedly connected. The assisted opening structure includes a first connecting part fixedly connected to the outer surface of the can body, a second connecting part fixedly connected to the outer surface of the can lid and hinged to the first connecting part, and a connecting spring that is adjustablely connected to the second connecting part at one end and fixedly connected to the can body at the other end by a pin.

[0008] Furthermore, a connecting seat is fixedly provided on the outer surface of the tank. One end of the connecting spring is fixedly connected to the connecting seat through a pin. Several adjustment holes for connecting the connecting spring are provided on the second connecting part. The other end of the connecting spring is connected to the adjustment hole through a pin.

[0009] Furthermore, the oil circulation device includes a first oil pipe connected to the bottom of the tank, an oil inlet pipe connected to one side of the bottom of the first oil pipe, an oil outlet pipe connected to the other side of the bottom of the first oil pipe, valves installed on the oil inlet pipe and the oil outlet pipe, and an oil collection tank installed at the bottom of the tank for circulating and collecting lubricating oil. The oil collection tank includes a filter tank installed below the oil outlet of the oil outlet pipe, a filter sponge installed below the filter tank, and an oil storage chamber installed below the filter sponge. The oil inlet pipe extends into the oil storage chamber through a connecting hose passing through the filter sponge.

[0010] Furthermore, the storage rack includes a hollow connecting shaft with several oil outlet holes on its surface, several storage baskets fixedly connected to the connecting shaft for placing oil-containing bearings, and a lifting lug located on the top of the connecting shaft for removing the storage rack from the tank. The tank is provided with a placement platform for placing the storage rack. The placement platform has an insertion hole in the middle for sealing the connecting shaft and introducing lubricating oil into the connecting shaft. The insertion hole is connected to the first oil pipe. The surface of the storage basket has mesh openings and the bottom of the storage basket fits against the placement platform.

[0011] Furthermore, the shelf is equipped with a double-layered storage basket, and the oil outlet holes are evenly arranged in a ring above the storage basket.

[0012] Furthermore, the vacuum pump is connected to the first oil immersion device and the second oil immersion device respectively through the first connecting pipe and the second connecting pipe, and valves for closing the first connecting pipe and the second connecting pipe are respectively installed on the first connecting pipe and the second connecting pipe.

[0013] This utility model relates to a dual-station oil-impregnated bearing immersion device. By employing a dual-vacuum-tube immersion structure, it can simultaneously process a large number of bearings, effectively improving production efficiency. The three-point bolt sealing and locking structure significantly enhances the sealing effect of the immersion tank. The assisted opening structure effectively assists in opening the immersion tank, reducing operational difficulty. The oil circulation structure at the bottom of the immersion tank ensures the cleanliness of the lubricating oil entering the tank while greatly reducing lubricating oil waste. The multi-layered shelf structure increases the processing capacity of bearings. Connecting the first oil pipe to the connecting shaft allows lubricating oil to enter the immersion tank through the connecting shaft. The hollow connecting shaft structure with oil holes on its surface allows the lubricating oil entering the connecting shaft to form a spray pattern. This utility model's dual-station oil-impregnated bearing immersion device is simple in structure, easy to operate, and highly efficient. The dual-station vacuum tank immersion structure not only greatly improves product processing efficiency but also effectively allows lubricating oil to penetrate into the bearing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of a dual-station oil-impregnated bearing immersion device according to the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the first oil-immersing device in a dual-station oil-impregnated bearing oil-immersing device of this utility model;

[0017] Figure 3 This is a schematic diagram of the assisted cover opening structure in a dual-station oil-impregnated bearing immersion device of the present invention;

[0018] Figure 4 This is a schematic diagram of the connection structure of the oil immersion tank, shelf and oil circulation device in a dual-station oil-impregnated bearing immersion device of this utility model.

[0019] In the diagram, 1-frame; 2-oil immersion device; 21-vacuum pump; 22-first oil immersion device; 23-second oil immersion device; 24-first connecting pipe; 25-second connecting pipe; 3-oil immersion tank; 31-tank body; 311-placement platform; 312-insertion hole; 32-first extension; 33-tank lid; 34-second extension; 4-opening and closing device; 41-handle; 42-locking structure; 421-locking block; 422-locking bolt; 423-positioning hole; 4 3-Assisted opening structure; 431-First connecting part; 432-Second connecting part; 433-Connecting spring; 434-Adjusting hole; 5-Shelf; 51-Connecting shaft; 52-Oil outlet; 53-Storage basket; 54-Lifting lug; 6-Oil circulation device; 61-First oil pipe; 62-Oil inlet pipe; 63-Oil outlet pipe; 64-Oil collection tank; 641-Filter tank; 642-Filter sponge; 643-Oil storage chamber; 7-Pressure gauge; 8-Pressure relief valve; 9-Connecting seat. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Reference Figure 1 , Figure 2 and Figure 3The diagram shows a schematic diagram of a dual-station oil-impregnated bearing immersion device, a schematic diagram of a first immersion device, and a schematic diagram of an assisted opening structure. The dual-station oil-impregnated bearing immersion device 2 includes a frame 1 and an immersion device 2 fixedly mounted on the frame 1. The immersion device 2 includes a vacuum pump 21 fixedly mounted on the frame 1, and a first immersion device 22 and a second immersion device 23 symmetrically arranged on both sides of the vacuum pump 21 for immersing the oil-impregnated bearings. The structure of the dual vacuum immersion device 2 allows for simultaneous processing of multiple bearings, effectively improving production efficiency. The first immersion device 22 includes an immersion tank 3 fixedly mounted on the frame 1 and connected to the vacuum pump 21, an opening and closing device 4 on the immersion tank 3 for opening the immersion tank 3, a shelf 5 inside the immersion tank 3 for placing the oil-impregnated bearings, and a lubrication device at the bottom of the immersion tank 3. The oil circulation device 6 for lubricating oil circulation, the pressure gauge 7 and the pressure relief valve 8 are set on the top of the oil immersion tank 3. The oil immersion tank 3 includes a tank body 31 with a circular cross-section, which is fixedly mounted on the frame 1, a first extension 32 in the shape of a ring at the opening of the tank body 31, a tank cover 33 adapted to the tank body 31, and a second extension 34 adapted to the first extension 32. The opening and closing device 4 includes a handle 41 fixedly set on the outer circumference of the tank cover 33 for lifting the tank cover 33, a locking structure 42 with three points evenly distributed on the outer surface of the tank body 31 for sealing and closing the tank body 31 and the tank cover 33, and an assist opening structure 43 set between the tank body 31 and the tank cover 33. The three-point bolt sealing and locking structure 42 can effectively improve the sealing effect of the oil immersion tank 3, and the assist opening structure 43 can effectively assist the opening of the oil immersion tank 3 and reduce the operation difficulty of the device.

[0022] Vacuum pump 21 is connected to first oil immersion device 22 and second oil immersion device 23 respectively through first connecting pipe 24 and second connecting pipe 25. By adopting the process of first evacuating vacuum and then immersing oil, the oil immersion effect of oil-impregnated bearing can be guaranteed to the greatest extent. Valves for closing first connecting pipe 24 and second connecting pipe 25 are respectively installed on first connecting pipe 24 and second connecting pipe 25. By opening and closing the valves, first oil immersion device 22 and second oil immersion device 23 can be used alone or simultaneously, which improves the flexibility of the device.

[0023] The locking structure 42 includes a U-shaped locking block 421 hinged to the outer surface of the can body 31 at one end, a locking bolt 422 rotatably connected to the upper surface of the locking block 421, and a positioning hole 423 opened on the upper surface of the second extension 34 for the locking bolt 422 to be threadedly connected. The assisted opening structure 43 includes a first connecting part 431 fixedly connected to the outer surface of the can body 31, a second connecting part 432 fixedly connected to the outer surface of the can lid 33 and hinged to the first connecting part 431, and a connecting spring 433, one end of which is adjustablely connected to the second connecting part 432 and the other end of which is fixedly connected to the can body 31 by a pin. A connecting seat 9 is also fixedly connected to the outer surface of the can body 31. One end of the connecting spring 433 is fixedly connected to the connecting seat 9 by a pin. The second connecting part 432 is provided with a plurality of adjusting holes 434 for the connecting spring 433 to be connected. The other end of the connecting spring 433 is connected to the adjusting hole 434 by a pin. The most suitable deformation length of the connecting spring 433 can be achieved by adjusting the length of the connecting spring 433.

[0024] Reference Figure 4 The diagram shows the connection structure of an oil immersion tank, a shelf, and an oil circulation device in a dual-station oil-impregnated bearing immersion device. The oil circulation device 6 includes a first oil pipe 61 connected to the bottom of the tank 31, an oil inlet pipe 62 connected to one side of the bottom of the first oil pipe 61, an oil outlet pipe 63 connected to the other side of the bottom of the first oil pipe 61, valves installed on the oil inlet pipe 62 and the oil outlet pipe 63, and an oil collection trough 64 installed at the bottom of the tank 31 for circulating and collecting lubricating oil. By setting an oil circulation structure at the bottom of the immersion tank 3, the cleanliness of the lubricating oil entering the tank 31 is ensured while greatly reducing the risk of oil leakage. To prevent lubricating oil waste, the oil collection tank 64 includes a filter tank 641 located below the oil outlet of the oil outlet pipe 63, a filter sponge 642 located below the filter tank 641, and an oil storage chamber 643 located below the filter sponge 642. The filter tank 641 has a mesh structure that can filter out larger metal particles mixed in the lubricating oil. The filter sponge 642 located below can filter out smaller metal particles in the lubricating oil. The dual filtration mode can make the lubricating oil circulating in the oil circuit cleaner. The oil inlet pipe 62 extends into the oil storage chamber 643 through the filter sponge 642 via a connecting hose.

[0025] The storage rack 5 includes a hollow connecting shaft 51 with several oil outlet holes 52 on its surface, several storage baskets 53 fixedly connected to the connecting shaft 51 for placing oil-impregnated bearings, and lifting lugs 54 located on the top of the connecting shaft 51 for removing the storage rack 5 from the tank 31. The storage rack 5 has a double-layered storage basket 53, which increases the machining allowance of the bearings. The outlet holes are evenly arranged in a ring above the storage baskets 53. The tank 31 has a placement platform 311 for placing the storage rack 5, with a sealing insertion point for the connecting shaft 51 in the center of the placement platform 311. The connecting shaft 51 has a plug hole 312 that allows lubricating oil to be introduced into it. The plug hole 312 is connected to the first oil pipe 61. The connecting shaft 51 is sealed to the plug hole 312 through a sealing ring. As the tank 31 is continuously evacuated, the lubricating oil can enter the oil immersion tank 3 through the connecting shaft 51 and spray onto the oil-impregnated bearing through the oil outlet 52 until the lubricating oil covers the bearing. The surface of the basket 53 is provided with a mesh and the bottom of the basket 53 is in contact with the placement platform 311. The in-contact structure can ensure the stability of the rack 5 placed in the tank 31.

[0026] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A dual-station oil-impregnated bearing immersion device, comprising a frame and an immersion device fixedly mounted on the frame, characterized in that: The oil immersion device includes a vacuum pump fixedly mounted on a frame, a first oil immersion device and a second oil immersion device symmetrically arranged on both sides of the vacuum pump for immersing oil-impregnated bearings in oil. The first oil immersion device includes an oil immersion tank fixedly mounted on the frame and connected to the vacuum pump, an opening and closing device on the oil immersion tank for opening the oil immersion tank, a shelf inside the oil immersion tank for placing the oil-impregnated bearings, an oil circulation device at the bottom of the oil immersion tank for circulating lubricating oil, and a pressure gauge and a pressure relief valve at the top of the oil immersion tank. The oil immersion tank includes a tank body fixedly mounted on the frame with a circular cross-section, a first annular extension at the opening of the tank body, a tank cover adapted to the tank body, and a second extension at the bottom of the tank cover adapted to the first extension. The opening and closing device includes a handle fixedly mounted on the outer circumference of the tank cover for lifting the tank cover, a locking structure with three points evenly distributed on the outer surface of the tank body for sealing and closing the tank body and the tank cover, and an assistive opening structure between the tank body and the tank cover.

2. The dual-station oil-impregnated bearing immersion device according to claim 1, characterized in that: The locking structure includes a U-shaped locking block hinged to the outer surface of the can, a locking bolt rotatably connected to the locking block, and a positioning hole opened on the upper surface of the second extension for the locking bolt to be threadedly connected. The assisted opening structure includes a first connecting part fixedly connected to the outer surface of the can, a second connecting part fixedly connected to the outer surface of the can lid and hinged to the first connecting part, and a connecting spring that is adjustablely connected to the second connecting part at one end and fixedly connected to the can body at the other end by a pin.

3. The dual-station oil-impregnated bearing immersion device according to claim 2, characterized in that: A connecting seat is also fixedly installed on the outer surface of the tank. One end of the connecting spring is fixedly connected to the connecting seat by a pin. Several adjustment holes for connecting the connecting spring are opened on the second connecting part. The other end of the connecting spring is connected to the adjustment hole by a pin.

4. A dual-station oil-impregnated bearing immersion device according to claim 1, 2, or 3, characterized in that: The oil circulation device includes a first oil pipe connected to the bottom of the tank, an oil inlet pipe connected to one side of the bottom of the first oil pipe, an oil outlet pipe connected to the other side of the bottom of the first oil pipe, valves installed on the oil inlet pipe and the oil outlet pipe, and an oil collection tank installed at the bottom of the tank for circulating and collecting lubricating oil. The oil collection tank includes a filter tank installed below the oil outlet of the oil outlet pipe, a filter sponge installed below the filter tank, and an oil storage chamber installed below the filter sponge. The oil inlet pipe extends into the oil storage chamber through the filter sponge via a connecting hose.

5. The dual-station oil-impregnated bearing immersion device according to claim 4, characterized in that: The storage rack includes a hollow connecting shaft with several oil outlet holes on its surface, several storage baskets fixedly connected to the connecting shaft for placing oil-containing bearings, and a lifting lug on the top of the connecting shaft for removing the storage rack from the tank. The tank has a placement platform for placing the storage rack inside, and the placement platform has an insertion hole in the middle for sealing the connecting shaft and introducing lubricating oil into the connecting shaft. The insertion hole is connected to a first oil pipe. The surface of the storage basket has mesh holes and the bottom of the storage basket fits against the placement platform.

6. The dual-station oil-impregnated bearing immersion device according to claim 5, characterized in that: The shelf is equipped with a double-layer storage basket, and the oil outlet holes are evenly arranged in a ring above the storage basket.

7. A dual-station oil-impregnating bearing immersion device according to claim 1, 2, or 3, characterized in that: The vacuum pump is connected to the first oil immersion device and the second oil immersion device respectively through the first connecting pipe and the second connecting pipe. Valves for closing the first connecting pipe and the second connecting pipe are respectively installed on the first connecting pipe and the second connecting pipe.

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