Lubrication device for pneumatic control box

Abstract

This invention belongs to the field of pneumatic lubrication technology, specifically relating to a lubrication device for a pneumatic control box. The device includes: a housing with an air inlet pipe inserted into its outer wall; a lubrication mechanism disposed inside the housing and connected to the air inlet pipe; wherein the lubrication mechanism includes a pump head and an oil reservoir; the air inlet pipe communicates with an airflow channel opened inside the pump head; a compression mechanism disposed inside the oil reservoir to compress the lubricating oil in the oil reservoir when the airflow passes through the airflow channel; and a drive mechanism connected to the compression mechanism, wherein the drive mechanism is adapted to push the compression mechanism to compress the lubricating oil in the oil reservoir upon startup.

Description

Technical Field

[0001] This invention belongs to the field of pneumatic lubrication technology, specifically relating to a lubrication device for pneumatic control boxes. Background Technology

[0002] Pneumatic control boxes are the core control units in industrial automation systems and are widely used in packaging machinery, automobile manufacturing, marine power, new energy equipment and other fields. They integrate various components such as solenoid valves, pressure reducing valves, filters and lubricators.

[0003] Oil mist lubricators are typically installed in series in the main air intake of a pneumatic control box. Their working principle is based on the Venturi effect or pressure difference principle, using airflow to atomize lubricating oil and mix it with the flowing compressed air to form an oil-air mixture, which is then transported downstream to various parts that require lubrication by the airflow. In the use of existing oil mist lubricators, some airflow generally enters the oil tank, directly squeezing the surface of the lubricating oil by increasing the air pressure in the oil tank, thus pumping the lubricating oil. If the amount of lubricating oil in the oil tank is too small, that is, if the cavity in the oil tank is too large, the air pressure is difficult to effectively and stably pump the lubricating oil, which will lead to unstable oil suction and thus affect the lubrication effect on downstream equipment.

[0004] Therefore, a lubrication device for a pneumatic control box is designed to solve the technical problem in the prior art where insufficient lubricating oil in the oil tank leads to unstable oil suction, affecting the lubrication effect of downstream equipment.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one lubrication device for a pneumatic control box.

[0007] In a first aspect, embodiments of this disclosure provide a lubrication device for a pneumatic control box, comprising: The housing has an air intake pipe inserted into its outer wall; A lubrication mechanism is located inside the housing and connected to the air intake pipe; wherein The lubrication mechanism includes a pump head and an oil reservoir; The air inlet pipe is connected to the airflow channel opened inside the pump head; The extrusion mechanism is disposed inside the oil chamber so that the airflow passing through the airflow channel extrudes the lubricating oil in the oil chamber; and A drive mechanism is connected to the extrusion mechanism, and the drive mechanism is adapted to push the extrusion mechanism to extrude the lubricating oil in the oil chamber when started.

[0008] In one optional embodiment, the extrusion mechanism includes: A top plate is installed inside the oil tank. An air inlet is provided on the upper surface of the top plate, and a one-way valve is installed inside the air inlet. Several guide posts are vertically arranged inside the oil tank, and each guide post is connected to the top plate; and The pressure plate is slidably disposed inside the oil tank, and each of the guide columns passes through the pressure plate and is slidably connected to the pressure plate.

[0009] In one optional implementation, the drive mechanism includes: A rotating shaft, one end of which is rotatably connected to the inner wall of the oil tank, and several fan blades are provided on the outer wall of the rotating shaft; A drive shaft is connected to the other end face of the rotating shaft, and a push rod is connected to a bearing on the outer wall of the drive shaft; and The piston has its upper end face connected to the bottom bearing of the push rod.

[0010] In one optional embodiment, a sliding sleeve is inserted into the upper end face of the top plate, and the bottom end of the sliding sleeve is located in the air cavity between the top plate and the pressure plate; wherein The piston is located inside the sliding sleeve and is slidably connected to the sliding sleeve.

[0011] In one optional embodiment, the oil tank has an internal oil passage; wherein One end of the oil passage penetrates the bottom of the inner wall of the oil tank, and the other end penetrates the inner wall of the oil tank and is located above the top plate; and The oil passage is connected to a transfer pipe at one end above the top plate.

[0012] In one optional embodiment, the pump head has a storage cavity inside, and the pump head also has a guide tube inside; wherein One end of the guide tube is connected to the storage cavity, and the other end is connected to the transfer tube.

[0013] In one optional embodiment, an adjusting element is provided inside the airflow channel; wherein The adjusting component has an acceleration channel horizontally opened inside, and the diameter of the acceleration channel is smaller than the diameter of the airflow channel.

[0014] In one optional embodiment, a drainage tube is provided inside the pump head; wherein One end of the drainage tube is connected to the storage cavity, and the other end passes through the regulating member and points to the airflow output port of the acceleration channel.

[0015] In one optional embodiment, the pump head is provided with a flow-diverting channel inside; wherein One end of the diversion channel is connected to the airflow channel, and the other end passes through the pump head and faces the fan blade.

[0016] The beneficial effects of this invention are that, by providing a squeezing mechanism and a driving mechanism, when the airflow passes through the airflow channel, the airflow drives the driving mechanism to start, thereby driving the pressure plate to directly squeeze the surface of the lubricating oil in the oil tank. Compared with the airflow pushing the surface of the liquid, the force applied by the pressure plate to the surface of the lubricating oil is more stable, avoiding the situation where the air pressure is insufficient to push the lubricating oil to flow when the amount of lubricating oil in the oil tank is too small, resulting in unstable oil absorption.

[0017] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 An overall perspective view provided for an embodiment of this disclosure; Figure 2 This is a three-dimensional structural diagram of the lubrication mechanism provided in an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the internal structure of the lubrication mechanism from a first cross-sectional view according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the internal structure of the lubrication mechanism provided in the embodiments of this disclosure from a second cross-sectional perspective.

[0021] In the picture: 1. Housing; 10. Air intake pipe; 2. Lubrication mechanism; 20. Pump head; 200. Storage chamber; 21. Oil tank; 210. Oil passage; 22. Airflow channel; 23. Adjusting component; 230. Acceleration channel; 24. Drain pipe; 25. Diversion channel; 26. Transfer pipe; 3. Extrusion mechanism; 30. Top plate; 31. Pressure plate; 32. Air chamber; 33. Air inlet; 34. Guide column; 4. Drive mechanism; 40. Rotating shaft; 41. Fan blade; 42. Drive shaft; 43. Push rod; 44. Sliding sleeve; 45. Piston. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0024] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0025] Research has shown that oil mist lubricators are typically installed in series in the main air intake of a pneumatic control box. Their working principle is based on the Venturi effect or pressure difference principle, using airflow to atomize lubricating oil and mix it with the flowing compressed air to form an oil-air mixture, which is then transported downstream to various parts requiring lubrication by the airflow. In the use of existing oil mist lubricators, some airflow generally enters the oil tank, directly squeezing the lubricating oil surface by increasing the air pressure in the oil tank, thus pumping the lubricating oil. If the amount of lubricating oil in the oil tank is too small, i.e., the cavity in the oil tank is too large, the air pressure is difficult to effectively and stably pump the lubricating oil, which will lead to unstable oil suction and thus affect the lubrication effect on downstream equipment.

[0026] Based on the above research, this disclosure provides a lubrication device for a pneumatic control box. By providing a squeezing mechanism and a driving mechanism, when airflow passes through the airflow channel, the airflow drives the driving mechanism to start, thereby driving the pressure plate to directly squeeze the surface of the lubricating oil in the oil tank. Compared with the airflow pushing the surface of the liquid, the force applied by the pressure plate to the surface of the lubricating oil is more stable, avoiding the situation where the air pressure is insufficient to compress the flow of lubricating oil when the amount of lubricating oil in the oil tank is too small, resulting in unstable oil suction.

[0027] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0030] In some embodiments, such as Figures 1 to 2 As shown, during use, an external air source is pumped into the air inlet pipe 10 by a pump (not shown in the figure, this is the prior art), flows through the air inlet pipe 10 through the lubrication mechanism 2, and flows through the pipeline connected to the output end of the pump head 20 in the lubrication mechanism 2 to the subsequent diversion valve to pump the gas and lubricating oil mist to the downstream equipment. like Figures 3 to 4As shown, during use, the airflow enters the airflow channel 22 inside the pump head 20 through the air inlet pipe 10. Part of the airflow passes through the acceleration channel 230 inside the regulating component 23. Since the diameter of the acceleration channel 230 is smaller than the diameter of the airflow channel 22, the airflow velocity passing through the acceleration channel 230 increases. It flows along the F1 direction to the subsequent pipeline until it reaches the diversion valve. Part of the airflow enters the oil tank 21 above the top plate 30 through the diversion pipe 25. The bottom end of the diversion pipe 25 faces each fan blade 41. When the airflow passes through the diversion pipe 25, it impacts the fan blades 41, which drive the rotating shaft 40 to rotate. When the rotating shaft 40 rotates, it drives the drive shaft 42 fixed at its end to rotate synchronously. The top and bottom ends of the push rod 43 are respectively connected to the drive shaft 42 and the piston 45 bearings. At this time, as the drive shaft 42 rotates, the push rod 43 drives the piston. 45 reciprocates up and down within the sliding sleeve 44. When piston 45 moves upward, the one-way valve in the air inlet 33 of the top plate 30 opens, allowing air above the top plate 30 to enter the air chamber 32. When piston 45 moves downward, the one-way valve closes, increasing the internal pressure of the air chamber 32. At this time, pressure plate 31 is squeezed and pushed, sliding downward along the guide direction of guide column 32, pushing the lubricating oil below pressure plate 31 into the oil passage 210 inside oil tank 21. The lubricating oil enters the transfer pipe 26 through the oil passage 210 and enters the storage chamber 200 through the diversion pipe 25 connected to the transfer pipe 26. Finally, it flows out through the drain pipe 24 connected to the storage chamber 200, with the bottom end of the drain pipe 24 facing the airflow direction F1. At this time, the airflow passes through the acceleration channel 230 and is accelerated, carrying the lubricating oil dripping from the bottom end of the drain pipe 24 into the downstream equipment for lubrication.

[0031] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0033] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0034] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0035] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A lubrication device for a pneumatic control box, characterized in that, include: The box (1) has an air inlet pipe (10) inserted into its outer wall; A lubrication mechanism (2) is disposed inside the housing (1) and connected to the air intake pipe (10); wherein The lubrication mechanism (2) includes a pump head (20) and an oil tank (21); The air inlet pipe (10) is connected to the airflow channel (22) opened inside the pump head (20); The extrusion mechanism (3) is located inside the oil tank (21) so that the airflow passing through the airflow channel (22) extrudes the lubricating oil in the oil tank (21); as well as The drive mechanism (4) is connected to the extrusion mechanism (3), and the drive mechanism (4) is adapted to push the extrusion mechanism (3) to extrude the lubricating oil in the oil tank (21) when it is started.

2. The lubrication device for a pneumatic control box as described in claim 1, characterized in that, The extrusion mechanism (3) includes: A top plate (30) is provided inside the oil tank (21). An air inlet (33) is provided on the upper surface of the top plate (30), and a one-way valve is provided in the air inlet (33). A number of guide posts (34) are vertically arranged inside the oil tank (21), and each of the guide posts (34) is connected to the top plate (30); and The pressure plate (31) is slidably disposed inside the oil tank (21), and each of the guide columns (34) passes through the pressure plate (31) and is slidably connected to the pressure plate (31).

3. The lubrication device for a pneumatic control box as described in claim 2, characterized in that, The drive mechanism (4) includes: A rotating shaft (40) is rotatably connected at one end to the inner wall of the oil tank (21), and a number of fan blades (41) are provided on the outer wall of the rotating shaft (40). A drive shaft (42) is connected to the other end face of the rotating shaft (40), and a push rod (43) is connected to a bearing on the outer wall of the drive shaft (42); and The piston (45) has its upper end face connected to the bottom bearing of the push rod (43).

4. The lubrication device for a pneumatic control box as described in claim 3, characterized in that, A sliding sleeve (44) is inserted into the upper end face of the top plate (30), and the bottom end of the sliding sleeve (44) is located in the air cavity (32) between the top plate (30) and the pressure plate (31); wherein The piston (45) is located inside the sliding sleeve (44) and is slidably connected to the sliding sleeve (44).

5. The lubrication device for a pneumatic control box as described in claim 4, characterized in that, The oil tank (21) has an oil passage (210) inside; wherein One end of the oil passage (210) penetrates the bottom of the inner wall of the oil tank (21), and the other end penetrates the inner wall of the oil tank (21) and is located above the top plate (30); and The oil passage (210) is connected to a transfer pipe (26) at one end above the top plate (30).

6. The lubrication device for a pneumatic control box as described in claim 5, characterized in that, The pump head (20) has a storage cavity (200) inside, and a guide tube (25) is provided inside the pump head (20); wherein One end of the guide tube (25) is connected to the storage cavity (200), and the other end is connected to the transfer tube (26).

7. The lubrication device for a pneumatic control box as described in claim 6, characterized in that, An adjusting element (23) is provided inside the airflow channel (22); wherein The adjustment member (23) has an acceleration channel (230) horizontally opened inside, and the diameter of the acceleration channel (230) is smaller than the diameter of the airflow channel (22).

8. The lubrication device for a pneumatic control box as described in claim 7, characterized in that, The pump head (20) is internally provided with a drainage pipe (24); wherein One end of the drainage tube (24) is connected to the storage cavity (200), and the other end passes through the regulating member (23) and points to the airflow output port of the acceleration channel (230).

9. The lubrication device for a pneumatic control box as described in claim 8, characterized in that, The pump head (20) has a flow distribution channel (25) inside; wherein One end of the diversion channel (25) is connected to the airflow channel (22), and the other end passes through the pump head (20) and faces the fan blade (41).

Images