Oil coating device

Abstract

The application provides an oiling device, which comprises a body, the body comprising: a first cavity for placing a part; a flow channel arranged on the periphery of the first cavity and in communication with the first cavity, wherein oil flows in the flow channel along the direction of gravity; and a spraying part connected with the body and used for spraying airflow flowing toward the first cavity into the flow channel. The application provides an oiling mode in which oil can be attached to the surface of the part by means of high-speed airflow, by arranging an oil flow channel on the periphery of the first cavity and arranging a spraying part on the periphery of the flow channel. The oiling device realizes all-around spraying of the surface of the part, and solves the technical problem that oiling dead angles are prone to occurring on the surface of the part. Furthermore, the oiling device has the technical effects of optimizing the structure of the oiling device, improving the practicality and reliability of the oiling device, improving the oiling efficiency, reducing the degree of environmental pollution, and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of parts coating technology, and more specifically, to an oiling device. Background Technology

[0002] During product assembly, the surfaces of moving parts need to be coated with oil before assembly to achieve lubrication between structures and ensure long-term reliable operation of the structure.

[0003] Two main methods are used in related technologies to complete oiling. The first method involves completely immersing the surface of the part in the oil, but this method cannot solve the problem of oil dripping, resulting in waste and environmental pollution. The second method involves applying oil to the surface of the part using a sponge, but this method is slow and it is difficult to control the uniformity of the oiled surface.

[0004] Therefore, designing an oiling device that can solve the above-mentioned technical problems has become an urgent technical issue to be addressed. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0006] Therefore, the present invention proposes an oiling device.

[0007] In view of this, the present invention provides an oiling device, the oiling device comprising: a body, the body comprising: a first cavity for placing parts; a flow channel disposed on the periphery of the first cavity and connected to the first cavity, wherein oil flows in the flow channel in the direction of gravity; and a spraying part connected to the body for spraying airflow flowing toward the first cavity into the flow channel.

[0008] The oiling apparatus provided by this invention includes a body and a spraying unit. The body serves as the main frame structure of the oiling apparatus, enclosing the working cavity and positioning and supporting other structures on the apparatus. Specifically, a first cavity and a flow channel are formed within the body. The first cavity holds parts; after placing the parts inside, an oil coating process is performed on the surface of the parts. After the process is completed, the parts can be removed for subsequent assembly processes. The flow channel is located outside the first cavity and is connected to it. Specifically, the oil flows along the direction of gravity within the flow channel, and the distance it travels is greater than the height of the parts, forming an oil jet around the periphery of the first cavity. Furthermore, the oiling apparatus also includes a spraying unit connected to the body. The spraying unit sprays a high-pressure airflow into the flow channel to propel the oil. Specifically, high-pressure airflow is generated around the flow channel and flows towards the first cavity. During its flow, it impacts the oil flow and carries some oil with it. Finally, the airflow impacts the surface of the part, and the oil it carries can adhere to the corresponding impact area, thus completing the oil adhesion process on the surface of the part.

[0009] In other words, this invention proposes an oiling method that uses a high-speed airflow to adhere oil to the surface of a part by setting an oil flow channel around the periphery of the first cavity and a spray nozzle around the flow channel. Compared to the immersion oiling method in related technologies, the airflow impact carries less oil, and the oil can form a more stable oil film after impacting the part surface, avoiding the problem of oil dripping due to excessive oil adhesion, thus solving the problems of oil waste and environmental pollution. Compared to the wiping oiling method in related technologies, the high-pressure airflow impact spraying method can quickly form an oil film on the surface of the part, with a much higher efficiency than the wiping oiling method. Furthermore, the oil film formed by the high-pressure airflow impact oiling method is more uniform, thus solving the problems of slow oiling efficiency and uneven oil thickness. At the same time, the spray nozzle defined in this invention can spray high-pressure airflow around the periphery of the flow channel, thereby achieving all-round spraying of the part surface and solving the technical problem of oiling dead corners on the part surface. This results in optimizing the structure of the oiling device, improving its practicality and reliability, increasing oiling efficiency, reducing environmental pollution, and enhancing the user experience.

[0010] Specifically, during operation, the spray unit rapidly sprays multiple high-pressure airflows at predetermined intervals to carry oil onto the outer surface of the parts via the high-frequency, high-pressure airflow. This improves oil coverage while avoiding oil dripping caused by large single sprays.

[0011] Simultaneously, the oiling device also includes a rotating component. Parts are placed on this rotating component and rotate with it. During the oiling process, the rotating component drives the parts to rotate, and the spraying unit rapidly sprays multiple high-pressure airflows at equal intervals, thus achieving full-angle oil adhesion to the parts. This ensures that the coated parts can operate reliably in the product for a long time, reducing the product's failure rate.

[0012] In addition, the oiling device provided by the present invention may also have the following additional technical features:

[0013] In the above technical solution, the main body also includes: a second cavity; an oil inlet hole, connecting the flow channel and the second cavity; and an oil outlet hole, connected to the flow channel; wherein, in the height direction of the oiling device, the flow channel is located between the oil inlet hole and the oil outlet hole.

[0014] This technical solution provides a detailed explanation of the flow channel structure. Specifically, the main body also includes a second cavity, an oil inlet, and an oil outlet. The second cavity is located at the top of the flow channel. One end of the oil inlet is connected to the bottom of the second cavity, and the other end is connected to the top of the flow channel, allowing oil to flow into the second cavity through the oil inlet. The oil outlet is connected to the bottom of the flow channel. Oil that is not impacted by the high-pressure airflow into the first cavity within the flow channel is ultimately discharged outside the flow channel through the oil outlet, preventing oil accumulation within the flow channel. During operation, the oil first enters the second cavity and then flows into the oil inlet under gravity, forming an oil jet flowing in the direction of gravity within the flow channel. By setting up the second cavity, the oil can first accumulate within it, ensuring an uninterrupted oil jet within the flow channel and avoiding uneven oil spraying caused by flow jet interruptions. By setting an oil outlet at the bottom of the flow channel, the oil can be automatically discharged by gravity, preventing the oil accumulated in the flow channel from overflowing into the first chamber. This achieves the technical effects of optimizing the body structure, improving the uniformity and reliability of oil spraying, avoiding oil pollution of the environment, and enhancing the user experience.

[0015] In any of the above technical solutions, there are multiple oil inlets, which are arranged around the first cavity.

[0016] In this technical solution, multiple oil inlets are formed on the body, and these inlets are all arranged around the periphery of the first cavity. Specifically, the multiple oil inlets are spaced apart and distributed at the same horizontal level. By arranging multiple oil inlets distributed around the first cavity, the oil flowing in from the multiple inlets can combine to form an oil curtain. The shape of this oil curtain corresponds to the distribution shape of the multiple oil inlets on the horizontal plane. Thus, an oil curtain surrounding the first cavity is formed by the multiple oil inlets arranged around the first cavity. Forming an oil curtain ensures that high-pressure airflows flowing towards the first cavity from all directions can carry oil and impact the surface of the part, avoiding dead zones in oil spraying. At the same time, in the direction of airflow, the thickness of the oil curtain is smaller than that of the oil jet formed by a single hole, which can reduce the amount of oil sprayed in a single airflow impact, thereby further reducing the probability of oil dripping. This achieves the technical effects of optimizing the distribution of oil inlet holes, improving the reliability and uniformity of oil spraying, and enhancing oil film adhesion.

[0017] In any of the above technical solutions, the body further includes: multiple oil passage holes, connecting the flow channel and the first cavity, located between the flow channel and the first cavity.

[0018] In this technical solution, oil passage holes are also formed on the body. One end of the oil passage hole is connected to the first cavity, and the other end is connected to the flow channel, with the oil passage hole located between the first cavity and the flow channel. During operation, the airflow and the oil it carries are sprayed onto the surface of the part through the oil passage holes. By setting multiple oil passage holes between the first cavity and the flow channel, multiple oil spray points can be accurately located on the first cavity. Compared with the technical solution where the airflow directly impacts the surface of the part without obstruction, setting oil passage holes can improve the uniformity of oil spraying, thereby forming a stable oil film on the surface of the part and solving the problem of oil dripping. This achieves the technical effect of optimizing the body structure and improving the uniformity and reliability of spraying.

[0019] Specifically, multiple oil passages are evenly distributed on a ring surface surrounding the first cavity to enhance the uniformity and adhesion of the oil film formed on the surface of the part.

[0020] In any of the above technical solutions, the injection unit includes: a third cavity disposed on the periphery of the flow channel; an air inlet connected to the third cavity; an air pump connected to the air inlet; and multiple air outlets connecting the third cavity and the flow channel, located between the third cavity and the flow channel.

[0021] This technical solution provides a detailed description of the structure of the spraying unit. Specifically, the spraying unit includes a third chamber, an air inlet, an air outlet, and an air pump. The third chamber is located around the flow channel, placing the flow channel between the third chamber and the first chamber. One end of the air inlet is connected to the air pump, and the other end is connected to the third chamber. Multiple air outlets are located between the third chamber and the flow channel, with one end connected to the third chamber and the other end connected to the flow channel. During operation, the air pump delivers gas to the third chamber through the air inlet, and then the gas is sprayed into the flow channel through the multiple air outlets. The air inlet extends towards the first chamber to create multiple high-pressure airflows around the flow channel. By providing a third chamber around the flow channel and multiple air outlets, multiple high-pressure airflows distributed around the flow channel and flowing towards the first chamber can be formed around the flow channel, impacting the oil in the flow channel from multiple directions, facilitating all-around coating of the part surface. Meanwhile, the addition of a third chamber and an air outlet structure can enhance the intensity of the ejected airflow to a certain extent, thereby improving oil spraying efficiency and reducing the number of spraying passes for individual parts. This achieves the technical effect of optimizing the spray section structure, improving the uniformity and reliability of oil spraying, and avoiding dead zones in oil spraying.

[0022] In any of the above technical solutions, the body further includes: a first cylinder, with an oil passage hole disposed on the first cylinder; wherein the oil passage hole extends in the radial direction of the first cylinder.

[0023] This technical solution, building upon the spatial structure defined in the aforementioned technical solution, provides a detailed description of the physical structure of the main body. Specifically, the main body includes a first cylinder, the inner surface of which encloses a first cavity, with a flow channel located on the outer periphery of the cylinder. An oil passage is located on the first cylinder and extends through it. During spraying, an oil curtain flowing along the direction of gravity is formed on the outer periphery of the first cylinder. A jetting section located on the periphery of the flow channel sprays a high-pressure airflow towards the oil curtain. Under the impact of the high-pressure airflow, some oil is carried along and ultimately sprayed onto the outer surface of the part through the oil passage. By providing the first cylinder, a ring-shaped spray array can be formed inside the first cylinder, facilitating the formation of a uniform and stable oil film on the surface of the part. This achieves the technical effect of optimizing the main body structure and improving the oil spraying effect and adhesion strength.

[0024] Specifically, the oil passage hole extends radially along the first cylinder. By limiting the extension direction of the oil passage hole to this radial direction, the resistance between the high-pressure airflow and the oil-carrying fluid and the first cylinder can be reduced, thereby ensuring that some of the high-pressure airflow and oil can pass smoothly through the oil passage hole. This achieves the technical effect of improving oil spraying efficiency and reducing the spraying energy consumption of the oiling device.

[0025] The first cylinder is only one specific structural option in this application, and it can also be replaced by other shell structures, which will not be elaborated here.

[0026] In any of the above technical solutions, the main body further includes: a second cylinder, sleeved on the outside of the first cylinder and spaced apart from the first cylinder, with an air inlet on the second cylinder; wherein the air outlet extends in the radial direction of the second cylinder.

[0027] In this technical solution, the body also includes a second cylinder with a radial dimension larger than that of the first cylinder. The second cylinder is sleeved on the outer periphery of the first cylinder, and the inner surface of the second cylinder is spaced apart from the outer surface of the first cylinder. A second cavity and a flow channel are located between the first and second cylinders, surrounding the first cylinder. A third cavity is located on the outer periphery of the second cylinder, surrounding it. An air inlet is located on the second cylinder and penetrates through it. During spraying, an air pump delivers gas to the third cavity, whereby the gas passes through the air inlet to form multiple high-pressure airflows that surround the oil curtain and are sprayed towards the first cylinder, thus forming a 360-degree distributed high-pressure airflow array on the outer periphery of the oil curtain. This facilitates the formation of a uniform and stable oil film on the surface of the part. This achieves the technical effect of optimizing the body structure and improving the oil spraying effect and adhesion strength.

[0028] Specifically, the air inlet extends radially along the second cylinder. By limiting the extension direction of the air inlet to this radial direction, the friction between the gas and the second cylinder can be reduced, thereby increasing the intensity of the airflow. This achieves the technical effect of improving oil spraying efficiency and reducing the energy consumption of the air pump.

[0029] In any of the above technical solutions, the body further includes: a first partition plate, disposed between the first cylinder and the second cylinder, and connecting the first cylinder and the second cylinder, with an oil inlet hole disposed on the first partition plate.

[0030] In this technical solution, the main body also includes a first partition. The first partition is disposed between the first cylinder and the second cylinder, and connects the outer surface of the first cylinder and the inner surface of the second cylinder, respectively. The first partition separates a second cavity and a flow channel between the first and second cylinders; the flow channel is located at the bottom of the first partition, and the second cavity is located at the top of the first partition. An oil inlet is disposed on the first partition to connect the second cavity and the flow channel. During spraying, the top of the first partition is rapidly filled with oil, and under gravity, the oil drips from the oil inlet into the flow channel, forming a continuous oil curtain. After the spraying process is completed, oil supply to the top of the first partition is stopped or the oil inlet is closed to allow the user to remove the parts.

[0031] In any of the above technical solutions, there are multiple oil inlets, which are evenly distributed on the same pitch circle with the axis of the first cylinder as the axis.

[0032] In this technical solution, the distribution of the oil inlet holes on the first partition plate is defined. Specifically, multiple oil inlet holes are evenly distributed on the same pitch circle with the axis of the first cylinder as the axis, thereby forming an array of oil inlet holes surrounding the first cylinder on its outer periphery. During the spraying process, oil flows into the flow channel through the oil inlet holes, and the oil flowing into two adjacent oil inlet holes connects in the flow channel to form an oil curtain surrounding the first cylinder. This ensures that the high-pressure airflow ejected from each air inlet hole can impact the oil curtain and carry oil to spray the surface of the parts. This achieves the technical effect of optimizing the body structure, improving the uniformity of oil spraying and the reliability of oil film adhesion, and enhancing the practicality of the oiling device.

[0033] In any of the above technical solutions, the spraying part further includes: a third cylinder, which is sleeved on the outside of the second cylinder and spaced apart from the second cylinder.

[0034] In this technical solution, the spraying section includes a third cylindrical structure. The radial dimension of the third cylinder is larger than that of the second cylinder, and it is fitted around the outer periphery of the second cylinder, with the inner surface of the third cylinder spaced apart from the outer surface of the second cylinder. A third cavity is located between the third and second cylinders. By fitting the third cylinder around the outside of the second cylinder, a third cavity surrounding the flow channel can be formed around the air inlet, facilitating the formation of a high-pressure airflow array that surrounds the oil curtain spray. This achieves the technical effects of improving oil spraying efficiency and uniformity, and enhancing the reliability of oil film adhesion.

[0035] In any of the above technical solutions, the main body further includes: a second partition plate, which is connected to one end of the first cylinder, the second cylinder and the third cylinder respectively, and an oil outlet is provided on the second partition plate.

[0036] In this technical solution, the main body also includes a second partition plate, which is connected to the bottom end faces of the first cylinder, the second cylinder, and the third cylinder. The first cylinder, the second cylinder, the first partition plate, and the second partition plate together enclose the flow channel. An oil outlet is located on the second partition plate and is positioned opposite to the first partition plate. During the spraying process, a continuous oil curtain is formed between the first and second partition plates. The upper portion of the oil passes through the first cylinder under the action of the high-pressure airflow, while the remaining oil drips onto the second partition plate and is eventually discharged out of the main body through the oil outlet. The second partition plate does not block the port of the first cylinder, allowing oil adhering to the inner surface of the first cylinder to pass through the second partition plate, preventing oil accumulation in the first cavity.

[0037] The first cylinder, second cylinder, third cylinder, first partition, and second partition are all integral structures. By making these structures integral, on the one hand, processing difficulty is reduced and assembly is eliminated, thereby improving the production efficiency of the oiling device and reducing its production cost. On the other hand, with an integral structure, there are no structural sections between the various structures, eliminating the possibility of oil leakage from structural gaps and solving the problem of oil contamination of the external environment. Simultaneously, eliminating structural sections through an integral structure improves the structural strength between the various structures, preventing misalignment or even disintegration of the multiple structures during long-term operation. This ultimately achieves the technical effect of improving the structural stability and reliability of the oiling device.

[0038] In any of the above technical solutions, the oiling device further includes: a cover plate covering the other end of the first cylinder, the second cylinder and the third cylinder, a first partition plate located between the cover plate and the second partition plate, and an air inlet provided on the cover plate.

[0039] In this technical solution, the oiling device also includes a cover plate, which covers the upper end faces of the first cylinder, the second cylinder, and the third cylinder. After the cover plate is closed, a first partition plate is located between the cover plate and the second partition plate, and is spaced apart from them. The first cylinder, the second cylinder, the first partition plate, and the cover plate enclose a second cavity. The second cylinder, the third cylinder, the second partition plate, and the cover plate enclose a third cavity. An air inlet is located on the cover plate, and a gas pipeline connector is connected to the cover plate and communicates with the air inlet. The air outlet of the air pump is connected to the gas pipeline connector via a gas pipeline. Specifically, the cover plate is detachably mounted on the upper end faces of the first cylinder, the second cylinder, and the third cylinder to facilitate cleaning or maintenance of the internal structure of the oiling device, providing convenience for the user. Additionally, a through hole is provided in the central area of ​​the cover plate for parts to pass through, facilitating the loading and unloading of parts.

[0040] In any of the above technical solutions, the cover plate includes a through hole, which is disposed opposite to the first partition plate.

[0041] In this technical solution, the cover plate is also provided with a through hole, which is positioned opposite to the first partition plate and connects to the second cavity. Furthermore, the oiling device is equipped with a liquid pipeline connector and an oil pump. The liquid pipeline connector is connected to the cover plate and communicates with the through hole. The output end of the oil pump is connected to the liquid pipeline connector via a liquid pipeline to replenish oil to the second cavity.

[0042] Specifically, the oiling device also includes sensors and a controller. The sensors are located in the first chamber to detect whether a part is placed inside. The controller is connected to the sensors, oil pump, and air pump to control their operation. During spraying, after a part is placed into the first chamber, the sensor sends a signal to the controller, which then controls the oil pump to operate. After the oil pump has been operating for a first duration, the controller controls the air pump to operate, ensuring a stable oil curtain is formed in the flow channel before the airflow is sprayed. The controller controls the air pump to intermittently pump gas at equal intervals, thereby achieving spot spraying of oil onto the surface of the part. This ensures uniform and comprehensive oil coverage while reducing the probability of oil dripping.

[0043] In any of the above technical solutions, the first cylinder, the second cylinder, and the third cylinder share the same axis.

[0044] In this technical solution, the first, second, and third cylinders share the same axis to form first, second, and third cavities distributed around the same axis. This ensures that the airflow and oil sprayed into the first cavity at each angle have essentially the same velocity, thereby improving the uniformity of spraying and facilitating the formation of a uniform and firmly adhered oil film on the part surface. This ultimately optimizes the structure of the oiling device and improves its spraying performance.

[0045] The gas pipeline connectors and inlets can be multiple, and these multiple gas pipeline connectors and inlets are evenly distributed on the same pitch circle with the aforementioned axis as the axis. Correspondingly, the liquid pipeline connectors and through holes can be multiple, and these multiple liquid pipeline connectors and through holes are evenly distributed on the same pitch circle with the aforementioned axis as the axis. This further enhances the aforementioned technical effects of the technical solution.

[0046] In any of the above technical solutions, the oiling device further includes: a support rib connected to the bottom surface of the body; and a groove provided on the support rib, penetrating the support rib and communicating with the oil outlet.

[0047] In this technical solution, the oiling device is also equipped with supporting ribs, which are connected to the bottom surface of the second partition to support it. Simultaneously, the supporting ribs can lift the second partition, creating an oil drainage space between the second partition and the plane where the oiling device is placed. Furthermore, grooves are provided on the supporting ribs, penetrating the ribs and connecting to oil outlet holes. Oil flowing through the oil outlet holes flows to a designated area under the combined action of the grooves and other guiding structures. This completes the collection and directional discharge of the oil.

[0048] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0049] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0050] Figure 1 One of the schematic diagrams of an oiling apparatus according to an embodiment of the present invention is shown;

[0051] Figure 2 A second schematic diagram of an oiling device according to an embodiment of the present invention is shown;

[0052] Figure 3 A third schematic diagram of an oiling device according to an embodiment of the present invention is shown;

[0053] Figure 4 A fourth schematic diagram of an oiling apparatus according to an embodiment of the present invention is shown;

[0054] Figure 5 Fifth schematic diagram of an oiling device according to an embodiment of the present invention is shown;

[0055] Figure 6 Sixth schematic diagram of an oiling device according to an embodiment of the present invention is shown.

[0056] in, Figures 1 to 6 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0057] 100 Oiling device, 110 First cavity, 112 Flow channel, 114 Second cavity, 116 Third cavity, 120 First cylinder, 122 Oil passage hole, 130 Second cylinder, 132 Air outlet hole, 140 First partition, 142 Oil inlet hole, 150 Third cylinder, 160 Second partition, 162 Oil outlet hole, 170 Cover plate, 172 Air inlet hole, 174 Through hole, 180 Support rib, 182 Groove, 190 Gas pipeline connector, 192 Liquid pipeline connector. Detailed Implementation

[0058] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0059] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0060] The following reference Figures 1 to 6 An oiling apparatus according to some embodiments of the present invention is described.

[0061] Example 1

[0062] like Figure 1 , Figure 2 and Figure 3 As shown, a first aspect embodiment of the present invention provides an oiling device 100, which includes: a body, the body including: a first cavity 110 for placing parts; a flow channel 112 disposed on the periphery of the first cavity 110 and connected to the first cavity 110, wherein oil flows in the flow channel 112 along the direction of gravity; and a spraying part connected to the body for spraying airflow flowing toward the first cavity 110 into the flow channel 112.

[0063] The oiling apparatus 100 provided by this invention includes a body and a spraying unit. The body serves as the main frame structure of the oiling apparatus 100, enclosing the working cavity and positioning and supporting other structures on the oiling apparatus 100. Specifically, a first cavity 110 and a flow channel 112 are formed within the body. The first cavity 110 holds parts; after placing the parts inside the first cavity 110, an oil coating process is performed on the surface of the parts. After the process is completed, the parts can be removed for subsequent assembly processes. The flow channel 112 is located outside the first cavity 110 and is connected to the first cavity 110. Specifically, the oil flows in the flow channel 112 along the direction of gravity, and the distance it flows is greater than the height of the parts, forming an oil jet around the first cavity 110. Furthermore, the oiling apparatus 100 is also provided with a spraying unit connected to the body. The jetting section is used to inject high-pressure airflow into the flow channel 112 to drive the oil movement. Specifically, the high-pressure airflow is generated around the flow channel 112 and flows in the direction of the first cavity 110. During its flow, it impacts the oil flow and carries some oil with it. Finally, the airflow impacts the surface of the part, and the oil it carries can adhere to the corresponding impact area, thereby completing the oil adhesion process on the surface of the part.

[0064] In other words, this invention proposes an oiling method that uses a high-speed airflow to adhere oil to the surface of a part by providing an oil flow channel 112 around the periphery of the first cavity 110 and a spray nozzle around the flow channel 112. Compared to the immersion oiling method in related technologies, the airflow impact carries less oil, and the oil can form a more stable oil film after impacting the part surface, avoiding the problem of oil dripping due to excessive oil adhesion, thus solving the problems of oil waste and environmental pollution. Compared to the wiping oiling method in related technologies, the high-pressure airflow impact spraying method can quickly form an oil film on the surface of the part, with a much higher efficiency than the wiping oiling method. Furthermore, the oil film formed by the high-pressure airflow impact oiling method is more uniform, thus solving the problems of slow oiling efficiency and uneven oil thickness. At the same time, the spray nozzle defined in this invention can spray high-pressure airflow around the periphery of the flow channel 112, thereby achieving all-round spraying of the part surface and solving the technical problem of oiling dead corners on the part surface. This results in optimizing the structure of the oiling device 100, improving its practicality and reliability, increasing oiling efficiency, reducing environmental pollution, and enhancing the user experience.

[0065] Specifically, during operation, the spray unit rapidly sprays multiple high-pressure airflows at predetermined intervals to carry oil onto the outer surface of the parts via the high-frequency, high-pressure airflow. This improves oil coverage while avoiding oil dripping caused by large single sprays.

[0066] Meanwhile, the oiling device 100 also includes a rotating component. Parts are placed on this rotating component and rotate with it. During the oiling process, the rotating component drives the parts to rotate, and the spraying unit rapidly sprays multiple high-pressure airflows at equal intervals, thus achieving full-angle oil adhesion to the parts. This ensures that the coated parts can operate reliably in the product for a long time, reducing the product's failure rate.

[0067] Example 2

[0068] like Figure 1 , Figure 2 and Figure 4 As shown, in a second aspect embodiment of the present invention, the body further includes: a second cavity 114; an oil inlet 142 communicating with the flow channel 112 and the second cavity 114; and an oil outlet 162 communicating with the flow channel 112; wherein, in the height direction of the oiling device 100, the flow channel 112 is located between the oil inlet 142 and the oil outlet 162.

[0069] In this embodiment, the structure related to the flow channel 112 is described in detail. Specifically, a second cavity 114, an oil inlet, and an oil outlet 162 are also formed within the main body. The second cavity 114 is located at the top of the flow channel 112. One end of the oil inlet 142 is connected to the bottom of the second cavity 114, and the other end is connected to the top of the flow channel 112, so that oil can flow into the second cavity 114 through the oil inlet 142. The oil outlet 162 is connected to the bottom of the flow channel 112. Oil that is not impacted by the high-pressure airflow into the first cavity 110 within the flow channel 112 is ultimately discharged out of the flow channel 112 through the oil outlet 162, thereby preventing oil accumulation within the flow channel 112. During operation, the oil first enters the second cavity 114, and then flows into the oil inlet 142 under the action of gravity, forming an oil flow stream flowing in the direction of gravity within the flow channel 112. By setting up a second cavity 114, the oil can first accumulate in the second cavity 114, ensuring an uninterrupted oil flow within the flow channel 112 and avoiding uneven oil spraying caused by flow interruptions. By setting an oil outlet 162 at the bottom of the flow channel 112, the oil can be automatically discharged by gravity, preventing the oil accumulated in the flow channel 112 from overflowing into the first cavity 110. This achieves the technical effects of optimizing the body structure, improving the uniformity and reliability of oil spraying, preventing oil pollution of the environment, and enhancing the user experience.

[0070] Example 3

[0071] like Figure 1 , Figure 2 and Figure 4 As shown, in a third aspect embodiment of the present invention, there are multiple oil inlet holes 142, and the multiple oil inlet holes 142 are arranged around the first cavity 110.

[0072] In this embodiment, a plurality of oil inlet holes 142 are formed on the body, and the plurality of oil inlet holes 142 are all arranged around the first cavity 110. Specifically, the plurality of oil inlet holes 142 are spaced apart and distributed at the same horizontal level. By providing a plurality of oil inlet holes 142 distributed around the first cavity 110, the oil flowing into the plurality of oil inlet holes 142 can combine to form an oil curtain. The shape of the oil curtain corresponds to the distribution shape of the plurality of oil inlet holes 142 on the horizontal plane. Thus, the plurality of oil inlet holes 142 arranged around the first cavity 110 form an oil curtain surrounding the first cavity 110. Forming an oil curtain can ensure that the high-pressure airflow flowing toward the first cavity 110 from all directions can carry oil and impact the surface of the part, thereby avoiding dead zones in oil spraying. Meanwhile, in the direction of airflow, the oil curtain is thinner than the oil jet formed by a single orifice, which reduces the amount of oil sprayed in a single airflow impact, thereby further reducing the probability of oil dripping. This optimizes the distribution of the 142 oil inlet holes, improves the reliability and uniformity of oil spraying, and enhances the adhesion of the oil film.

[0073] Example 4

[0074] like Figure 1 , Figure 2 and Figure 4 As shown, in the fourth aspect embodiment of the present invention, the body further includes: a plurality of oil passage holes 122, which connect the flow channel 112 and the first cavity 110 and are located between the flow channel 112 and the first cavity 110.

[0075] In this embodiment, an oil passage hole 122 is also formed on the body. One end of the oil passage hole 122 is connected to the first cavity 110, and the other end is connected to the flow channel 112, and the oil passage hole 122 is located between the first cavity 110 and the flow channel 112. During operation, the airflow and the oil it carries are sprayed onto the surface of the part through the oil passage hole 122. By setting multiple oil passage holes 122 between the first cavity 110 and the flow channel 112, multiple oil spray points can be accurately located on the first cavity 110. Compared with the embodiment where the airflow directly impacts the surface of the part without obstruction, setting the oil passage hole 122 can improve the uniformity of oil spraying, thereby forming a stable oil film on the surface of the part and solving the problem of oil dripping. This achieves the technical effect of optimizing the body structure and improving the uniformity and reliability of spraying.

[0076] Specifically, multiple oil passages 122 are evenly distributed on an annular surface surrounding the first cavity 110 to enhance the uniformity and adhesion of the oil film formed on the surface of the part.

[0077] Example 5

[0078] like Figure 1 , Figure 2 and Figure 4 As shown, in a fifth aspect embodiment of the present invention, the injection unit includes: a third cavity 116 disposed on the periphery of the flow channel 112; an air inlet 172 connected to the third cavity 116; an air pump connected to the air inlet 172; and a plurality of air outlets 132 connecting the third cavity 116 and the flow channel 112 and located between the third cavity 116 and the flow channel 112.

[0079] In this embodiment, the structure of the injection unit is described in detail. Specifically, the injection unit includes a third cavity 116, an air inlet 172, an air outlet 132, and an air pump. The third cavity 116 is disposed around the periphery of the flow channel 112, such that the flow channel 112 is located between the third cavity 116 and the first cavity 110. One end of the air inlet 172 is connected to the air pump, and the other end is connected to the third cavity 116. Multiple air outlets 132 are disposed between the third cavity 116 and the flow channel 112, with one end connected to the third cavity 116 and the other end connected to the flow channel 112. During operation, the air pump pumps gas into the third cavity 116 through the air inlet 172, and then the gas is injected into the flow channel 112 through the multiple air outlets 132. The air inlet 172 extends towards the first cavity 110 to form multiple high-pressure airflows around the periphery of the flow channel 112. By providing a third cavity 116 around the flow channel 112 and cooperating with multiple air outlets 132, multiple high-pressure airflows can be formed around the flow channel 112 and flow towards the first cavity 110, impacting the oil in the flow channel 112 from multiple directions, facilitating all-round spraying of the part surface. Simultaneously, the structure of the third cavity 116 and air outlets 132 can, to a certain extent, increase the intensity of the sprayed airflow, thereby improving oil spraying efficiency and reducing the number of spraying passes for a single part. This achieves the technical effect of optimizing the spray section structure, improving the uniformity and reliability of oil spraying, and avoiding dead zones in oil spraying.

[0080] Example 6

[0081] like Figure 1 , Figure 2 and Figure 3 As shown, in a sixth aspect embodiment of the present invention, the body further includes: a first cylinder 120, with an oil passage hole 122 disposed on the first cylinder 120; wherein the oil passage hole 122 extends in the radial direction of the first cylinder 120.

[0082] In this embodiment, following the spatial structure defined in the preceding embodiments, the physical structure of the body is described in detail. Specifically, the body includes a first cylinder 120, the inner surface of which encloses a first cavity 110, and a flow channel 112 located on the outer periphery of the cylinder. An oil passage 122 is provided on the first cylinder 120 and penetrates through it. During the spraying process, an oil curtain flowing along the direction of gravity is formed on the outer periphery of the first cylinder 120. The spray section located on the periphery of the flow channel 112 sprays high-pressure airflow toward the oil curtain. Under the impact of the high-pressure airflow, some oil is carried along with the high-pressure airflow and is finally sprayed onto the outer surface of the part through the oil passage 122. By providing the first cylinder 120, a ring-shaped spray array can be formed inside the first cylinder 120, so as to form a uniform and stable oil film on the surface of the part. This achieves the technical effect of optimizing the body structure and improving the oil spraying effect and adhesion strength.

[0083] Specifically, the oil passage 122 extends along the radial direction of the first cylinder 120. By limiting the extension direction of the oil passage 122 to this radial direction, the resistance between the high-pressure airflow and the oil-carrying fluid and the first cylinder 120 can be reduced, thereby ensuring that some of the high-pressure airflow and oil can pass smoothly through the oil passage 122. This achieves the technical effect of improving the oil spraying efficiency and reducing the spraying energy consumption of the oiling device 100.

[0084] The first cylinder 120 is only one specific structural option in this application. It can also be replaced by other shell structures, which will not be elaborated here.

[0085] Example 7

[0086] like Figure 1 , Figure 2 and Figure 3 As shown, in the seventh aspect embodiment of the present invention, the body further includes: a second cylinder 130, sleeved on the outside of the first cylinder 120 and spaced apart from the first cylinder 120, and an air inlet 172 is provided on the second cylinder 130; wherein the air outlet 132 extends in the radial direction of the second cylinder 130.

[0087] In this embodiment, the body further includes a second cylinder 130 with a radial dimension larger than that of the first cylinder 120. The second cylinder 130 is sleeved on the outer periphery of the first cylinder 120, and the inner surface of the second cylinder 130 is spaced apart from the outer surface of the first cylinder 120. A second cavity 114 and a flow channel 112 are located between the first cylinder 120 and the second cylinder 130, surrounding the first cylinder 120. A third cavity 116 is located on the outer periphery of the second cylinder 130, surrounding the second cylinder 130. An air inlet 172 is provided on the second cylinder 130 and penetrates through it. During spraying, an air pump pumps gas to the third cavity 116, and then the gas passes through the air inlet 172 to form multiple high-pressure airflows surrounding the oil curtain and spraying towards the first cylinder 120, thereby forming an omnidirectionally distributed high-pressure airflow array on the outer periphery of the oil curtain. This facilitates the formation of a uniform and stable oil film on the surface of the part. This achieves the technical effect of optimizing the body structure and improving the oil spraying effect and adhesion strength.

[0088] Specifically, the air inlet 172 extends along the radial direction of the second cylinder 130. By limiting the extension direction of the air inlet 172 to this radial direction, the friction between the gas and the second cylinder 130 can be reduced, thereby increasing the intensity of the formed airflow. This achieves the technical effect of improving oil spraying efficiency and reducing the energy consumption of the air pump.

[0089] Example 8

[0090] like Figure 1 , Figure 2 and Figure 3 As shown, in the eighth aspect embodiment of the present invention, the body further includes: a first partition 140, disposed between the first cylinder 120 and the second cylinder 130, and connecting the first cylinder 120 and the second cylinder 130, and an oil inlet 142 disposed on the first partition 140.

[0091] In this embodiment, the body also includes a first partition 140. The first partition 140 is disposed between the first cylinder 120 and the second cylinder 130, and connects the outer surface of the first cylinder 120 and the inner surface of the second cylinder 130, respectively. The first partition 140 separates a second cavity 114 and a flow channel 112 between the first cylinder 120 and the second cylinder 130. The flow channel 112 is located at the bottom of the first partition 140, and the second cavity 114 is located at the top of the first partition 140. An oil inlet 142 is disposed on the first partition 140 to connect the second cavity 114 and the flow channel 112. During spraying, the top of the first partition 140 is rapidly filled with oil, and under gravity, the oil drips from the oil inlet 142 into the flow channel 112, thus forming a continuous oil curtain. After the spraying process is completed, the oil supply to the top of the first partition 140 is stopped or the oil inlet 142 is closed to facilitate the user's removal of the parts.

[0092] Example 9

[0093] like Figure 1 , Figure 3 and Figure 4 As shown, in the ninth aspect embodiment of the present invention, there are multiple oil inlet holes 142, and the multiple oil inlet holes 142 are evenly distributed on the same pitch circle with the axis of the first cylinder 120 as the axis.

[0094] In this embodiment, the distribution of the oil inlet holes 142 on the first partition plate 140 is defined. Specifically, multiple oil inlet holes 142 are evenly distributed on the same pitch circle with the axis of the first cylinder 120 as the axis, thereby forming an array of oil inlet holes 142 surrounding the first cylinder 120 on its outer periphery. During the spraying process, oil flows into the flow channel 112 through the oil inlet holes 142, and the oil flowing into two adjacent oil inlet holes 142 connects in the flow channel 112 to form an oil curtain surrounding the first cylinder 120. This ensures that the high-pressure airflow ejected from each air inlet hole 172 can impact the oil curtain and carry oil to spray the surface of the parts. This achieves the technical effect of optimizing the body structure, improving the uniformity of oil spraying and the reliability of oil film adhesion, and improving the practicality of the oiling device 100.

[0095] Example 10

[0096] like Figure 1 , Figure 2 and Figure 6 As shown, in the tenth aspect embodiment of the present invention, the spraying part further includes: a third cylinder 150, which is sleeved on the outside of the second cylinder 130 and spaced apart from the second cylinder 130.

[0097] In this embodiment, the spray section includes a third cylinder 150. The radial dimension of the third cylinder 150 is larger than that of the second cylinder 130, and it is fitted around the outer periphery of the second cylinder 130, with the inner surface of the third cylinder 150 spaced apart from the outer surface of the second cylinder 130. A third cavity 116 is located between the third cylinder 150 and the second cylinder 130. By fitting the third cylinder 150 around the second cylinder 130, a third cavity 116 surrounding the flow channel 112 can be formed around the air inlet 172, facilitating the formation of a high-pressure airflow array surrounding the oil curtain spray. This achieves the technical effects of improving oil spraying efficiency and uniformity, and enhancing the reliability of oil film adhesion.

[0098] Example 11

[0099] like Figure 1 and Figure 5As shown, in the eleventh aspect of the present invention, the body further includes: a second partition 160, which is connected to one end of the first cylinder 120, the second cylinder 130 and the third cylinder 150 respectively, and an oil outlet 162 is provided on the second partition 160.

[0100] In this embodiment, the main body also includes a second partition 160, which is connected to the bottom end faces of the first cylinder 120, the second cylinder 130, and the third cylinder 150. The first cylinder 120, the second cylinder 130, the first partition 140, and the second partition 160 together enclose the flow channel 112. An oil outlet 162 is disposed on the second partition 160 and opposite to the first partition 140. During spraying, a continuous oil curtain is formed between the first partition 140 and the second partition 160. The upper portion of the oil passes through the first cylinder 120 under the action of high-pressure airflow, while the remaining oil drips onto the second partition 160 and is eventually discharged out of the main body through the oil outlet 162. The second partition 160 does not block the port of the first cylinder 120, allowing oil adhering to the inner surface of the first cylinder 120 to pass through the second partition 160, preventing oil accumulation in the first cavity 110.

[0101] Example 12

[0102] In the twelfth aspect embodiment of the present invention, the first cylinder 120, the second cylinder 130, the third cylinder 150, the first partition 140, and the second partition 160 are integral structures. By making the above structures integral, on the one hand, the processing difficulty can be reduced and the assembly process can be eliminated, thereby improving the production efficiency of the oiling device 100 and reducing the production cost of the oiling device 100. On the other hand, with the integral structure, there are no structural cross-sections between the above structures, eliminating the possibility of oil leakage from structural gaps and solving the problem of oil pollution to the external environment. At the same time, eliminating structural cross-sections through the integral structure can improve the structural strength between the above structures, preventing the above structures from misaligning or even disintegrating under long-term operation. Thus, the technical effect of improving the structural stability and reliability of the oiling device 100 is achieved.

[0103] Example 13

[0104] like Figure 1 and Figure 6 As shown, in the thirteenth aspect embodiment of the present invention, the oiling device 100 further includes: a cover plate 170 covering the other end of the first cylinder 120, the second cylinder 130 and the third cylinder 150, a first partition plate 140 located between the cover plate 170 and the second partition plate 160, and an air inlet 172 disposed on the cover plate 170.

[0105] In this embodiment, the oiling device 100 further includes a cover plate 170, which covers the upper end faces of the first cylinder 120, the second cylinder 130, and the third cylinder 150. After the cover plate 170 is closed, the first partition plate 140 is located between the cover plate 170 and the second partition plate 160, and is spaced apart from them. The first cylinder 120, the second cylinder 130, the first partition plate 140, and the cover plate 170 enclose a second cavity 114. The second cylinder 130, the third cylinder 150, the second partition plate 160, and the cover plate 170 enclose a third cavity 116. An air inlet is located on the cover plate 170, and a gas pipeline connector 190 is connected to the cover plate 170 and communicates with the air inlet. The outlet of the air pump is connected to the gas pipeline connector 190 via a gas pipeline. Specifically, the cover plate 170 is detachably mounted on the upper end faces of the first cylinder 120, the second cylinder 130, and the third cylinder 150 to facilitate cleaning or maintenance of the internal structure of the oiling device 100, providing convenience for the user. In addition, the central area of ​​the cover plate 170 is provided with a through hole for parts to pass through, facilitating the loading and unloading of parts.

[0106] Example 14

[0107] like Figure 1 and Figure 6 As shown, in the fourteenth aspect embodiment of the present invention, the cover plate 170 includes a through hole 174, which is disposed opposite to the first partition plate 140.

[0108] In this embodiment, the cover plate 170 is also provided with a through hole 174, which is opposite to the first partition plate 140 and communicates with the second cavity 114. Furthermore, the oiling device 100 is also provided with a liquid pipe connector 192 and an oil pump. The liquid pipe connector 192 is connected to the cover plate 170 and communicates with the through hole 174. The output end of the oil pump is connected to the liquid pipe connector 192 via a liquid pipe to replenish oil to the second cavity 114.

[0109] Example 15

[0110] In a fifteenth aspect embodiment of the present invention, the oiling device 100 further includes a sensor and a controller. The sensor is disposed in the first cavity 110 and is used to sense whether a part is placed in the first cavity 110. The controller is connected to the sensor, an oil pump, and an air pump to control the operation of the oil pump and the air pump. During the spraying process, after a part is placed into the first cavity 110, the sensor sends a signal to the controller, which then controls the oil pump to operate. After the oil pump has been operating for a first duration, the controller controls the air pump to operate to ensure that a stable oil curtain is formed in the flow channel 112 before the airflow is sprayed. The controller controls the air pump to pump gas intermittently at equal intervals, thereby achieving spot spraying of oil onto the surface of the part. This reduces the probability of oil dripping while ensuring uniform and comprehensive coverage of the oil spray.

[0111] Example 16

[0112] like Figure 2 and Figure 4 As shown, in the sixteenth aspect embodiment of the present invention, the first cylinder 120, the second cylinder 130 and the third cylinder 150 share the same axis.

[0113] In this embodiment, the first cylinder 120, the second cylinder 130, and the third cylinder 150 share the same axis to form a first cavity 110, a second cavity 114, and a third cavity 116 distributed around the same axis. This ensures that the airflow and oil sprayed into the first cavity 110 at each angle have substantially the same rate, thereby improving the uniformity of spraying and facilitating the formation of a uniform and firmly adhered oil film on the surface of the part. This achieves the technical effect of optimizing the structure of the oiling device 100 and improving its spraying performance.

[0114] The gas pipeline connector 190 and air inlet can be multiple, and these multiple gas pipeline connectors 190 and air inlets are evenly distributed on the same pitch circle with the aforementioned axis as the axis. Correspondingly, there can be multiple liquid pipeline connectors 192 and through holes 174, and these multiple liquid pipeline connectors 192 and through holes 174 are evenly distributed on the same pitch circle with the aforementioned axis as the axis. This further enhances the aforementioned technical effect in this embodiment.

[0115] Example 17

[0116] like Figure 1 , Figure 3 and Figure 6 As shown, in the seventeenth aspect embodiment of the present invention, the oiling device 100 further includes: a support rib 180 connected to the bottom surface of the body; and a groove 182 disposed on the support rib 180, penetrating the support rib 180, and communicating with the oil outlet hole 162.

[0117] In this embodiment, the oiling device 100 is further provided with a support rib 180, which is connected to the bottom surface of the second partition 160 to support the second partition 160. Simultaneously, the support rib 180 can lift the second partition 160, creating an oil discharge space between the second partition 160 and the oiling device 100. Furthermore, the support rib 180 is provided with a groove 182, which penetrates the support rib 180 and connects to the oil outlet 162. The oil flowing out through the oil outlet 162 flows to the designated area under the combined action of the groove 182 and other guiding structures. This completes the collection and directional discharge of the oil.

[0118] Example 18

[0119] In the eighteenth aspect of the present invention, a compressor parts spraying production line is provided. The compressor parts spraying production line includes the oiling device 100 in any of the above embodiments. Therefore, the compressor parts spraying production line has all the advantages of the oiling device 100 in any of the above technical solutions and can achieve the technical effects achieved by the oiling device 100 in any of the above technical solutions. To avoid repetition, it will not be described again here.

[0120] During the production process, rotating components such as the crankshaft and piston in the compressor must first undergo surface oil film application using an oiling device before assembly. This ensures that these components can operate effectively within the compressor for an extended period. This, in turn, improves the compressor's operational stability and reliability, reduces operating noise, and extends its service life.

[0121] In the description of this invention, the term "multiple" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0122] In the description of this invention, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0123] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An oiling device, characterized in that, include: The body, the body comprising: The first cavity is used to hold the parts; A flow channel is provided on the periphery of the first cavity and is connected to the first cavity, and the oil flows in the flow channel along the direction of gravity; The jet section, connected to the main body, is used to jet airflow flowing toward the first cavity into the flow channel; The body also includes: Second cavity; An oil inlet hole connects the flow channel and the second cavity; An oil outlet is connected to the flow channel; In the height direction of the oiling device, the flow channel is located between the oil inlet and the oil outlet; The body also includes: Multiple oil passages connect the flow channel and the first cavity, and are located between the flow channel and the first cavity; The injection unit includes: The third cavity is located on the periphery of the flow channel; The air inlet is connected to the third cavity. An air pump is connected to the air inlet. Multiple air vents connect the third cavity and the flow channel, and are located between the third cavity and the flow channel; The body also includes: The first cylinder, wherein the oil passage hole is provided on the first cylinder; The oil passage hole extends in the radial direction of the first cylinder; The body also includes: The second cylinder is sleeved on the outside of the first cylinder and spaced apart from the first cylinder, and the air inlet is provided on the second cylinder; The vent hole extends in the radial direction of the second cylinder; The body also includes: A first partition is disposed between the first cylinder and the second cylinder, and connects the first cylinder and the second cylinder. The oil inlet is disposed on the first partition.

2. The oiling device according to claim 1, characterized in that, There are multiple oil inlets, which are arranged around the first cavity.

3. The oiling device according to claim 1, characterized in that, There are multiple oil inlets, which are evenly distributed on the same pitch circle with the axis of the first cylinder as the axis.

4. The oiling device according to claim 1, characterized in that, The injection unit also includes: The third cylinder is sleeved on the outside of the second cylinder and spaced apart from the second cylinder.

5. The oiling device according to claim 4, characterized in that, The body also includes: The second partition is connected to one end of the first cylinder, the second cylinder and the third cylinder respectively, and the oil outlet is provided on the second partition.

6. The oiling device according to claim 5, characterized in that, Also includes: A cover plate is fitted over the other ends of the first cylinder, the second cylinder, and the third cylinder. The first partition plate is located between the cover plate and the second partition plate. The air inlet is disposed on the cover plate.

7. The oiling device according to claim 6, characterized in that, The cover plate includes a through hole, which is disposed opposite to the first partition plate.

8. The oiling device according to claim 4, characterized in that, The first cylinder, the second cylinder, and the third cylinder share the same axis.

9. The oiling apparatus according to any one of claims 1 to 8, characterized in that, Also includes: Support ribs are connected to the bottom surface of the main body; A groove is provided on the support rib, penetrates the support rib, and is connected to the oil outlet hole.

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