Guide rail lubricating device and magnetic driving conveying line

Abstract

The utility model discloses a guide rail lubricating device and magnetic drive conveying line, wherein the guide rail lubricating device includes oil storage tank, piston and piston rod, the piston is located in the oil storage tank and divides the oil storage tank into first chamber and second chamber, the first chamber is used for storing lubricating grease, the oil storage tank has the oil outlet that communicates with the first chamber, and the oil outlet is used for communicating with the inner chamber of guide rail through pipeline, one end of piston rod is connected with the piston, the other end of piston rod is equipped with trigger part, and piston rod passes through second chamber to make trigger part be located outside the oil storage tank. When the utility model guide rail lubricating device is applied to the magnetic drive conveying line, trigger part accepts the contact drive of mover, and drives piston rod and piston to move to the direction close to the oil outlet to supply oil to the guide rail. The supply of lubricating grease strictly follows the movement rhythm of mover, and high frequency trace oil injection guarantees the continuity of guide rail whole section oil film, avoids long distance end dry grinding, and prevents the pollution problem caused by excessive lubrication simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of conveying technology, and in particular to a guide rail lubrication device and a magnetic drive conveyor line. Background Technology

[0002] Magnetic drive conveyor lines generally rely on lubricators to ensure contact lubrication between the guide rail and slider contact surfaces, and between the guide rail and roller contact surfaces. In related technologies, to meet the stringent contamination control requirements of clean production lines, such as semiconductor and medical production lines, the industry commonly uses oil pump-type lubricators. These lubricators are controlled by a PLC to regulate the timing and dosage of oil dispensing, achieving a quantitative supply of lubricating medium and avoiding the risk of contamination from excessive lubrication. However, the use of oil pump-type lubricators requires the additional deployment of a lubrication control subsystem within the magnetic drive control architecture, leading to a surge in the need for multi-device collaborative control and increasing the burden of programming and maintenance. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a guide rail lubrication device that can directly contact the mover to supply oil, so that the supply of lubricating grease strictly follows the movement rhythm of the mover, without the need to design a complex transmission structure, and avoids the programming and maintenance burden and signal interference risks brought by the electronic control system.

[0004] This utility model also proposes a magnetic drive conveyor line with the above-mentioned guide rail lubrication device.

[0005] In a first aspect, embodiments of this application provide a guide rail lubrication device, including an oil reservoir, a piston, and a piston rod;

[0006] The piston is disposed inside the oil reservoir and divides the oil reservoir into a first chamber and a second chamber. The first chamber is used to store lubricating grease. The oil reservoir has an oil outlet communicating with the first chamber. The oil outlet is used to communicate with the inner cavity of the guide rail through a pipe. One end of the piston rod is connected to the piston, and the other end of the piston rod is provided with a trigger part. The piston rod passes through the second chamber so that the trigger part is located outside the oil reservoir.

[0007] The trigger is configured to receive contact drive from an external structural component and drive the piston rod and the piston to move toward the oil outlet to supply oil to the guide rail.

[0008] The guide rail lubrication device according to the embodiments of this utility model has at least the following beneficial effects: When the external structural component moves forward along the guide rail, the trigger part contacts the surface of the external structural component and generates relative displacement. As the position of the external structural component changes, the trigger part is subjected to continuous thrust, driving the piston rod and piston to move towards the bottom of the oil reservoir. The displacement of the piston compresses the volume of the first chamber, forcing the stored lubricating grease to enter the inner cavity of the guide rail through the oil outlet. The lubrication process is directly driven by the mechanical energy generated by the movement of the external structural component, eliminating the need for a complex transmission structure and avoiding the programming and maintenance burden and signal interference risks associated with the electronic control system. When the guide rail lubrication device is applied to a guide rail lubrication system, the mover can be used as the external structural component. The oil supply is determined by designing the piston stroke. The supply of lubricating grease strictly follows the movement rhythm of the mover. During the movement of the mover, it contacts the trigger part for oil lubrication. When the mover stops, the oil supply stops. High-frequency micro-injection ensures the continuity of the oil film throughout the guide rail, avoiding dry friction at the end of long distances, and preventing contamination problems caused by excessive lubrication.

[0009] According to the first aspect, in one possible implementation, the first chamber is located below the second chamber, and the piston rod and the piston move downward to supply oil to the guide rail.

[0010] According to the first aspect, in one possible implementation, the oil outlet is located at the bottom of the oil storage tank.

[0011] According to the first aspect, in one possible implementation, the triggering part includes a rolling element rotatably connected to the piston rod, the rolling element being used for rolling contact with the external structural member.

[0012] According to the first aspect, in one possible implementation, the guide rail lubrication device further includes a reset member connected between the piston rod and the oil reservoir, the reset member being used to drive the piston rod to move in a direction away from the oil outlet.

[0013] According to the first aspect, in one possible implementation, the piston rod includes a rod body, a baffle, and the trigger portion connected in sequence, the side edge of the baffle protruding from the side edge of the rod body, and the reset member sleeved on the outside of the rod body and pressing against the baffle and the oil reservoir.

[0014] According to the first aspect, in one possible implementation, the oil tank further has an air inlet communicating with the first chamber, and the guide rail lubrication device further includes an oil-proof and breathable membrane, which is attached to the oil tank and covers the air inlet.

[0015] Secondly, embodiments of this application also provide a magnetic drive conveyor line, the magnetic drive conveyor line comprising:

[0016] frame;

[0017] A guide rail is provided on the frame, and the guide rail has an inner cavity;

[0018] The magnetic drive module includes a stator and a mover, the stator being connected to the frame, and the mover contacting the guide rail via a slider or roller;

[0019] As described in the first aspect, in the guide rail lubrication device, the oil reservoir is connected to the frame, and the oil outlet is connected to the inner cavity via a pipe.

[0020] The stator is used to drive the mover to move along the guide rail. The mover contacts the trigger part. As the contact position between the mover and the trigger part changes, the mover pushes the trigger part and drives the piston rod and the piston to move closer to the oil outlet.

[0021] The magnetic drive conveyor line according to the embodiment of this utility model has at least the following beneficial effects: by applying the above-mentioned guide rail lubrication device, the supply of lubricating grease strictly follows the movement rhythm of the mover. During the movement of the mover, it contacts the trigger part for oil lubrication. When the mover stops, the oil supply stops. High-frequency micro-oil injection ensures the continuity of the oil film throughout the guide rail, avoids dry friction at the end of long distances, and prevents pollution problems caused by excessive lubrication.

[0022] According to the first aspect, in one possible implementation, the frame has an oil guide channel, one end of which is connected to the inner cavity, and the other end is connected to the oil outlet via a pipe.

[0023] According to the first aspect, in one possible implementation, the mover is provided with a pushing part having an inclined guide surface, and the triggering part moves along the guide surface to push the piston rod and the piston.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of a magnetic drive conveyor line according to an embodiment of the present invention;

[0027] Figure 2 This is a top view of a magnetic drive conveyor line according to an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along the AA direction;

[0029] Figure 4 for Figure 3 A magnified schematic diagram of a portion of region B in the middle;

[0030] Figure 5 This is a schematic diagram of the guide rail lubrication device in one embodiment of the present invention.

[0031] Figure label:

[0032] 100. Guide rail lubrication device; 110. Oil reservoir; 111. First chamber; 112. Second chamber; 113. Oil outlet; 114. Air inlet; 120. Piston; 130. Piston rod; 131. Trigger; 132. Rod body; 133. Baffle; 140. Reset component; 150. Oil-proof and breathable membrane;

[0033] 200. Frame; 210. Oil guide channel;

[0034] 300. Guide rail; 310. Inner cavity;

[0035] 400. Magnetic drive module; 410. Stator; 420. Mover; 421. Actuator; 4211. Guide surface. Detailed Implementation

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, 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.

[0041] In existing technologies, magnetic drive conveyor lines commonly use oil pump-type lubricators to lubricate the guide rails. These devices require a PLC control system to precisely adjust the oil dispensing timing and dosage. While this avoids contamination caused by excessive lubrication, it necessitates the deployment of an additional lubrication control subsystem, significantly increasing the complexity of inter-equipment coordination.

[0042] To address the aforementioned problems, this application provides a magnetic drive conveyor line. For example... Figures 1 to 4 As shown, the magnetic drive conveyor line includes a frame 200, a guide rail 300, a magnetic drive module 400, and a guide rail lubrication device 100. The guide rail 300 is mounted on the frame 200 and has an inner cavity 310. The magnetic drive module 400 includes a stator 410 and a mover 420. The stator 410 is connected to the frame 200, and the mover 420 is slidably connected to the guide rail 300 via a slider or roller. During movement, the mover 420 can contact the trigger part of the guide rail lubrication device 100, and the guide rail lubrication device 100 is used to deliver lubricating grease to the inner cavity 310 of the guide rail 300.

[0043] The guide rail 300, in conjunction with the slider or the roller, guides the movement of the mover 420. Taking the example of a roller mounted on the mover 420 and in conjunction with the guide rail 300, the roller has a guide groove along its circumference. The guide rail 300 has two guide ramps spaced vertically on both its left and right sides, with an oil groove between them. The inner cavity 310 of the guide rail 300 is connected to the oil groove via an oil passage. Thus, the guide rail lubrication device 100 supplies oil to the inner cavity 310 and squeezes it into the oil groove through the oil passage. During the sliding process of the mover 420, the surface of the roller contacts the lubricating grease and carries it away, ensuring that the lubricating grease covers the entire guide rail 300.

[0044] In this application, both the guide rail lubrication device 100 and the guide rail 300 are mounted on the frame 200. The frame 200 has an oil guide channel 210. One end of the oil guide channel 210 is connected to the inner cavity 310, and the other end is connected to the oil outlet 113 of the guide rail lubrication device 100 through a pipe, thereby forming a continuous oil delivery path between the oil outlet 113 of the guide rail lubrication device 100 and the inner cavity 310 of the guide rail 300. Furthermore, the guide rail lubrication device 100 is mounted on the outside of the guide rail 300, eliminating the need to design additional mounting structures on the guide rail 300.

[0045] The guide rail 300 can be a standard guide rail 300 part with an inner cavity 310 and an oil passage, or it can be designed and processed according to specific size requirements. This application does not limit this.

[0046] This application proposes a guide rail lubrication device, such as... Figure 1 , Figure 3 and Figure 5 As shown, in some embodiments, the guide rail lubrication device 100 includes an oil reservoir 110, a piston 120, and a piston rod 130. The piston 120 is a movable component that is in sealed contact with the inner wall of the oil reservoir 110. The piston 120 is disposed inside the oil reservoir 110 and divides the oil reservoir 110 into a first chamber 111 and a second chamber 112. The first chamber 111 is used to store lubricating grease. The oil reservoir 110 has an oil outlet 113 communicating with the first chamber 111. The oil outlet 113 is used to communicate with the inner cavity 310 of the guide rail 300 through a pipe. One end of the piston rod 130 is connected to the piston 120, and the other end is provided with a trigger part 131. The piston rod 130 passes through the second chamber 112 so that the trigger part 131 is located outside the oil reservoir 110. The trigger part 131 is configured to receive contact drive from an external structural component, driving the piston rod 130 and the piston 120 to move towards the oil outlet 113.

[0047] The guide rail lubrication device can be applied to the aforementioned magnetic drive conveyor line, with the mover 420 serving as an external structural component. When the mover 420 moves forward along the guide rail 300, the trigger 131 contacts the surface of the mover 420 and generates relative displacement. As the position of the mover 420 changes, the trigger 131 experiences a continuous thrust, driving the piston rod 130 and piston 120 towards the bottom of the oil reservoir 110. The displacement of the piston 120 compresses the volume of the first chamber 111, forcing the stored lubricating grease to enter the inner cavity 310 of the guide rail 300 through the oil outlet 113. In this embodiment, the mechanical energy generated by the movement of the mover 420 directly drives the lubrication process, avoiding the programming and maintenance burden and signal interference risks associated with the electronic control system. The oil supply is determined by designing the stroke of piston 120. The supply of lubricating grease strictly follows the movement rhythm of mover 420. During the movement of mover 420, it contacts trigger part 131 for oil lubrication. When mover 420 stops, the oil supply stops. High-frequency micro-injection of oil ensures the continuity of oil film throughout the guide rail 300, avoids dry friction at the end of long distances, and prevents contamination problems caused by excessive lubrication.

[0048] Based on the above embodiments, the first chamber 111 and the second chamber 112 can be arranged adjacent to each other in the vertical direction, that is, the first chamber 111 is located below the second chamber 112, and the piston rod 130 and piston 120 move downward to supply oil to the guide rail 300. The first chamber 111 is in a lower position to store lubricating grease, and the second chamber 112 is in a higher position to accommodate the movement space of the piston rod 130. Specifically, this can be achieved by designing the oil tank 110 as a vertical cylindrical structure and setting horizontally separated pistons 120 inside. This arrangement allows the lubricating grease to naturally gather towards the oil outlet 113 under the action of gravity, reducing the grease flow resistance when the piston 120 moves.

[0049] Furthermore, the oil outlet 113 can be located at the bottom of the oil reservoir 110, so that the lubricating grease will naturally collect at the oil outlet 113 under the action of gravity, which is conducive to the full utilization of the lubricating grease in the oil reservoir 110.

[0050] In practical applications, a downwardly recessed, funnel-shaped shell structure can be formed using stamping or welding processes. The funnel-shaped area forms a collection point for the lubricating grease, ensuring that the contents of the chamber sink naturally under gravity. The oil outlet 113 refers to the fluid channel connecting the inside and outside of the oil reservoir 110, which can be achieved by embedding a threaded metal pipe fitting into the bottom of the oil reservoir 110. The spatial arrangement of the bottom oil outlet 113 allows the lubricating grease to form a flow path by its own weight even without external force. A one-way valve can be installed at the oil outlet 113, and the one-way valve at the oil outlet 113 opens when the lubricating grease in the first chamber 111 is squeezed out, thereby preventing the backflow of external lubricating grease from contaminating the lubricating grease in the first chamber 111.

[0051] In other embodiments, the first chamber 111 and the second chamber 112 may also be arranged adjacent to each other in the left-right direction, and the mover 420 can contact the trigger part 131 and push the piston rod 130 and the piston 120 to move to the right, thereby realizing the supply of lubricating grease. In this case, the oil outlet 113 may also be located at the bottom of the oil reservoir 110. This application does not limit this, as long as the moving direction of the mover 420 intersects with the moving direction of the piston 120.

[0052] It should be noted that the stroke of the mover 420 may be a straight line, a curve, a ring, or other regular or irregular trajectory. The direction of movement of the mover 420 refers to the direction of movement of the mover 420 during the partial stroke when the mover 420 contacts the trigger part 131.

[0053] The part of the structure that contacts the trigger part 131 is defined as the pushing part 421. The mover 420 can be designed as an integral structure or a split structure, that is, the trigger part 131 can be a part of the mover 420 or an independent component, and this application does not limit this. Of the pushing part 421 and the trigger part 131, one is designed with a guide surface 4211, and the other is provided with a rolling element. The piston rod 130 and the piston 120 are pushed by the rolling element contacting the guide surface 4211.

[0054] The following description uses the example of a pusher 421 having a guide surface 4211 and a trigger 131 having a rolling element.

[0055] In some embodiments, the pushing part 421 has an inclined guide surface 4211. When the moving part 420 moves along the guide rail 300, the inclined guide surface 4211 of the pushing part 421 contacts the trigger part 131. The trigger part 131 slides or rolls along the inclined surface, so that the forward and backward movement of the moving part 420 is converted into the up and down displacement of the piston rod 130. The angle design of the inclined guide surface 4211 makes the direction of the component force on the trigger part 131 during the contact process consistent with the direction of movement of the piston rod 130, thereby pushing the piston rod 130 to move towards the oil outlet 113, squeezing the lubricating grease in the first chamber 111 into the inner cavity 310 of the guide rail 300 through the pipe. The entire oil discharge process depends entirely on the physical coordination between the movement trajectory of the moving part 420 and the mechanical structure, without the need for external control signal intervention.

[0056] Specifically, the bottom edge of the pusher 421 includes a horizontal section and guide surfaces 4211 connecting the two ends of the horizontal section, with the guide surfaces 4211 at both ends symmetrically arranged. Thus, whether the mover 420 moves forward or backward, it has a corresponding guide surface 4211 that contacts the trigger 131 to supply oil to the guide rail 300.

[0057] The oil output rate is controlled by the slope of the guide surface 4211. In this embodiment, the slope of the guide surface 4211 can be designed to be 1 / 8 to 1 / 12, specifically 1 / 10. This avoids an excessively large slope that would cause excessive directional force on the mover 420 when the pushing part 421 contacts the trigger part 131, thus hindering the movement of the mover 420. It also avoids excessively rapid changes in the lubricating grease extrusion pressure, which could cause splashing during grease extrusion. The oil output is controlled by the lowest point of the guide surface 4211. Specifically, the height difference between the initial contact between the trigger part 131 and the pushing part 421 and the lowest point of the guide surface 4211 determines the volume change of the first chamber 111, thereby determining the oil output.

[0058] In some embodiments, the trigger 131 may include a rolling element rotatably connected to the piston rod 130. The rolling element is a contact component capable of rotating about an axis, specifically a ball, roller, or bearing. When the mover 420 moves along the guide rail 300, the rolling element contacts the surface of the mover 420, forming rolling friction at the contact point. The rolling element continues to rotate during the contact process, converting the linear motion of the mover 420 into its own rotational motion, thereby eliminating relative sliding between the contact surfaces. During this process, the piston rod 130 only bears axial thrust. The rotational freedom of the rolling element avoids the generation of lateral friction, reduces the moving resistance of the piston rod 130, and simultaneously reduces the wear on the contact surface between the trigger 131 and the mover 420. This facilitates smooth axial movement of the piston rod 130 and maintains a stable and controllable amount of lubricating grease extrusion.

[0059] The mounting structure for rollers, bearings, and balls can adopt common mounting structures such as pivots and mounting slots, which will not be described in detail in this application.

[0060] In other embodiments, the trigger portion 131 may also be the end structure of the piston rod 130, which is not limited in this application. In this case, the trigger portion 131 slides in contact with the push portion 421. The trigger portion 131 and the push portion may be made of wear-resistant materials, such as high-chromium cast iron, medium-chromium cast iron, low-chromium cast iron, wear-resistant cast iron, ceramics, cemented carbide, bearing steel, alloy steel, and polymer materials, which are not limited in this application.

[0061] In some embodiments, the guide rail lubrication device 100 further includes a reset member 140, which is connected between the piston rod 130 and the oil reservoir 110. The reset member 140 is a mechanical element with elastic deformation capability, specifically a helical spring, disc spring, or elastic rubber body. The reset member 140 acts on the piston rod 130 through the elastic restoring force generated by pre-compression, causing it to move in the opposite direction after the oil supply action is completed. The axial movement trajectory of the piston rod 130 can be limited by the internal structure of the oil reservoir 110, so that the direction of the elastic force of the reset member 140 is opposite to the direction of oil supply, thereby achieving automatic reset after the external thrust is released.

[0062] When the bottom edge of the pushing part 421 includes a horizontal segment and guide surfaces 4211 connecting the two ends of the horizontal segment, for ease of distinction, the guide surfaces 4211 of the two segments are defined as the first guide surface 4211 and the second guide surface 4211, respectively. The first guide surface 4211 is located in front of the second guide surface 4211. When the moving part 420 moves forward, the trigger part 131 passes through the first guide surface 4211, the horizontal segment, and the second guide surface 4211 in sequence. The trigger part 131 moves along the first guide surface 4211 to extrude lubricating grease. The trigger part 131 moves along the horizontal segment to maintain the volume of the first chamber 111 for a period of time. When the trigger part 131 moves along the second guide surface 4211, the piston rod 130 and the piston 120 slowly return to their original positions. Conversely, when the mover 420 moves backward, the trigger part 131 passes through the second guide surface 4211, the horizontal section and the first guide surface 4211 in sequence, thereby realizing the extrusion of lubricating grease, the maintenance of the volume of the first chamber 111, and the slow reset of the piston rod 130 and the piston 120.

[0063] Specifically, the piston rod 130 includes a rod body 132, a baffle 133, and a trigger part 131 connected in sequence. The baffle 133 is a laterally extended structure located at the end of the rod body 132. The side edge of the baffle 133 protrudes from the side edge of the rod body 132 to form an annular support surface, providing a force-applying contact area for the reset member 140. The reset member 140 is sleeved on the outside of the rod body 132 and presses against the baffle 133 and the oil reservoir 110.

[0064] When the mover 420 pushes the trigger 131 to move the piston rod 130 towards the oil outlet 113, the baffle 133 moves synchronously with the rod 132 and compresses the reset member 140. The reset member 140 generates uniform elastic deformation between the baffle 133 and the inner wall of the oil reservoir 110, so that the piston rod 130 is always subjected to a reverse force during the movement. When the mover 420 disengages from the trigger 131, the reset member 140 releases the stored elastic potential energy, pushing the baffle 133 to automatically return the rod 132 and piston 120 to the initial position. This structure simplifies the reset action to a single axial movement through the direct pressing cooperation between the baffle 133 and the reset member 140, eliminating the need for an independent transmission mechanism.

[0065] The triggering part 131 may include a mounting base and a rolling element, the rolling element being connected to the mounting base via a rotating shaft. The rod body 132, the baffle 133, and the mounting base may be an integral structure; or the rod body 132 and the mounting base may be an integral structure, the baffle 133 being a disc-shaped metal plate welded to the rod body 132; or the baffle 133 and the mounting base may be an integral structure, the integral structure being threadedly connected to the rod body 132; or the mounting base may pass through the baffle 133 and be threadedly connected to the rod body 132, the baffle 133 being clamped between the rod body 132 and the mounting base. This application does not limit the specific connection method of the rod body 132.

[0066] In some embodiments, the oil reservoir 110 also has an air inlet 114 communicating with the first chamber 111. Even when the piston 120 is pushed to the lowest point by the pusher 421, the air inlet 114 is only communicating with the first chamber 111. The air inlet 114 can balance the air pressure difference between the first chamber 111 and the external environment when the piston rod 130 and the piston 120 are reset. The guide rail lubrication device 100 also includes an oil-proof and breathable membrane 150, which is attached to the oil reservoir 110 and covers the air inlet 114.

[0067] When piston 120 is pushed downward by actuator 420, the volume of first chamber 111 decreases, squeezing lubricating grease out of oil outlet 113. The volume of second chamber 112 increases, creating negative pressure. The amount of decrease in the volume of first chamber 111 is the amount of oil output, thus maintaining a consistent oil output. When piston 120 returns to its original position, the negative pressure in second chamber 112 exerts an upward force on piston 120, and the return element 140 exerts an upward force on piston rod 130. External air is supplied to first chamber 111 through oil-proof and breathable membrane 150, maintaining dynamic pressure balance.

[0068] Oil-proof and breathable membrane 150 refers to a polymer film with a microporous structure, specifically an expanded membrane made of polytetrafluoroethylene material, with a pore size controlled between 0.1 and 1 micrometer, allowing gas to pass through but blocking liquid oil penetration.

[0069] Both the oil outlet 113 and the air inlet 114 can be equipped with one-way valves. The one-way valve at the oil outlet 113 opens when lubricating grease is squeezed out, and the one-way valve at the air inlet opens when gas enters the first chamber 111.

[0070] In other embodiments, when the trigger part 131 and the push part 421 are not in contact, the air inlet 114 is connected to the first chamber 111 and the second chamber 112; when the piston 120 is pushed to the lowest point by the push part 421, the air inlet 114 is only connected to the second chamber 112, so that the air pressure in the second chamber 112 is balanced with the outside, and the reverse force of the trigger part 131 on the push part 421 is reduced.

[0071] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A guide rail lubrication device, characterized in that, Includes the oil reservoir, piston, and piston rod; The piston is disposed inside the oil reservoir and divides the oil reservoir into a first chamber and a second chamber. The first chamber is used to store lubricating grease. The oil reservoir has an oil outlet communicating with the first chamber. The oil outlet is used to communicate with the inner cavity of the guide rail through a pipe. One end of the piston rod is connected to the piston, and the other end of the piston rod is provided with a trigger part. The piston rod passes through the second chamber so that the trigger part is located outside the oil reservoir. The trigger is configured to receive contact drive from an external structural component and drive the piston rod and the piston to move toward the oil outlet to supply oil to the guide rail.

2. The guide rail lubrication device according to claim 1, characterized in that, The first chamber is located below the second chamber, and the piston rod and the piston move downward to supply oil to the guide rail.

3. The guide rail lubrication device according to claim 2, characterized in that, The oil outlet is located at the bottom of the oil storage tank.

4. The guide rail lubrication device according to claim 1, characterized in that, The triggering part includes a rolling element rotatably connected to the piston rod, the rolling element being used to make rolling contact with the external structural component.

5. The guide rail lubrication device according to claim 1, characterized in that, The guide rail lubrication device also includes a reset component, which is connected between the piston rod and the oil reservoir. The reset component is used to drive the piston rod to move in a direction away from the oil outlet.

6. The guide rail lubrication device according to claim 5, characterized in that, The piston rod includes a rod body, a baffle, and a trigger part connected in sequence. The side edge of the baffle protrudes from the side edge of the rod body. The reset member is sleeved on the outside of the rod body and presses against the baffle and the oil reservoir.

7. The guide rail lubrication device according to claim 1, characterized in that, The oil tank also has an air inlet communicating with the first chamber, and the guide rail lubrication device further includes an oil-proof and breathable membrane, which is attached to the oil tank and covers the air inlet.

8. A magnetically driven conveyor line, characterized in that, include: frame; A guide rail is provided on the frame, and the guide rail has an inner cavity; The magnetic drive module includes a stator and a mover, the stator being connected to the frame, and the mover contacting the guide rail via a slider or roller; The guide rail lubrication device as described in any one of claims 1 to 7, wherein the oil storage tank is connected to the frame, and the oil outlet is connected to the inner cavity via a pipe; The stator is used to drive the mover to move along the guide rail. The mover contacts the trigger part. As the contact position between the mover and the trigger part changes, the mover pushes the trigger part and drives the piston rod and the piston to move closer to the oil outlet.

9. The magnetic drive conveyor line according to claim 8, characterized in that, The frame has an oil guide channel, one end of which is connected to the inner cavity, and the other end is connected to the oil outlet through a pipe.

10. The magnetic drive conveyor line according to claim 8, characterized in that, The actuator is provided with a pushing part, the pushing part having an inclined guide surface, and the triggering part moves along the guide surface to push the piston rod and the piston.

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