Trace automatic oiling device

Abstract

An automatic trace oiling device relates to the technical field of oiling devices and comprises an oil storage tank used for storing lubricating oil, a driving mechanism and an oiling device body, and the oiling device body comprises a cylinder body, a first spring, an oil separation rubber ring and a hollow piston assembly. The hollow piston assembly comprises a piston body, an oil filling pipe, a one-way valve, a plunger, a reducing section and a spring support, a first spring is arranged between the spring support and the top of an inner cavity of the cylinder body, a limiting groove is formed in the lower end in the cylinder body through diameter expansion, an oil separation rubber ring is arranged on the upper portion in the limiting groove, and the piston body is arranged on the lower portion in the limiting groove. The oil separation rubber ring is of a conical structure with a hole in the center, the outer surface of the conical structure is opposite to the upper end of the piston body, and the reducing section penetrates through the hole. High-precision trace quantitative refueling can be achieved, and waste caused by excessive refueling is avoided; the servo oiling device is installed on an up-down movement assembly of the spin riveting equipment, and servo oiling matched with the change of production efficiency can be achieved.

Description

Technical Field

[0001] This invention relates to the field of refueling device technology, specifically to a micro-volume automatic refueling device. Background Technology

[0002] Chain pin riveting is a processing method that uniformly enlarges the end of the chain pin by rotating an alloy wheel at high speed. This process requires adding a small amount of lubricating oil to the end of the pin to ensure the surface quality of the riveting process. At the same time, the alloy wheel generates a lot of heat at high speed and high frequency. Adding oil to the end of the pin helps the alloy wheel cool down and achieves smooth contact between the alloy wheel and the pin, which helps to extend the service life of the alloy wheel.

[0003] Existing refueling methods include:

[0004] 1. Before riveting the chain pin, use an oil pump or oiler to pump oil to the end face of the pin.

[0005] 2. Take a cotton thread or brush from the oil container and bring it to the upper end of the chain. Apply the lubricant to the chain pins using the cotton thread or brush.

[0006] However, these refueling methods are suitable for low-frequency applications where the amount of oil injected is not particularly precise. For applications requiring high-frequency intermittent and extremely small quantitative refueling, they can result in slow refueling frequency and excessive refueling, which not only fails to meet the working conditions but also wastes lubricating oil. Utility Model Content

[0007] This invention discloses a micro-volume automatic refueling device, which aims to solve the following problems in the prior art: the refueling method is suitable for low-frequency occasions where the oil volume requirement is not particularly precise, but for occasions requiring high-frequency intermittent and extremely small quantitative refueling, it will result in slow refueling frequency and excessive refueling, which will not only fail to meet the working conditions but also cause lubricant waste.

[0008] To achieve the above objectives, the technical solution of this invention is as follows:

[0009] A micro-volume automatic refueling device includes an oil reservoir for storing lubricating oil, a drive mechanism, and a refueling device body. The refueling device body includes a cylinder, a spring, an oil-separating rubber ring, and a hollow piston assembly. The hollow piston assembly includes a piston body, an oil injection pipe fixed longitudinally at the lower middle of the piston body, a one-way valve disposed within the oil injection pipe, and a plunger disposed at the upper middle of the piston body and extending longitudinally upward. The upper part of the plunger is narrowed to form a reduced-diameter section, and a spring support is provided at the top of the reduced-diameter section. A spring is provided between the spring support and the top of the cylinder cavity. The lower end of the cylinder body is widened to form a limiting groove, and an oil-separating rubber ring is provided at the upper part of the limiting groove. The piston body is located at the bottom of the piston ring. The oil-separating rubber ring is a conical structure with a central opening. The outer surface of the conical structure is opposite to the upper end of the piston body. The reduced-diameter section passes through the opening. The opening is used in conjunction with the plunger. When the opening and the plunger are tightly fitted and form a sealing structure, a metered oil chamber is formed between the oil-separating rubber ring and the piston body. The oil injection pipe passes through the through hole at the lower end of the cylinder and is slidably connected to the through hole. The piston body has an oil passage that communicates with the inner cavity of the oil injection pipe. The oil reservoir is connected to the cylinder body through an oil pipe. The driving mechanism is a linear telescopic device. The telescopic end of the linear telescopic device is fixedly connected to the top of the cylinder body and drives the cylinder body to extend and retract vertically.

[0010] Preferably, the driving mechanism is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or the up-and-down movement component of a riveting device.

[0011] Preferably, the piston body has an annular groove on its outer periphery, and a sealing ring is engaged in the annular groove. The piston body is slidably connected to the inner wall of the limiting groove through the sealing ring.

[0012] Preferably, the outer edge of the oil-separating rubber ring is sealed and fixedly connected to the top of the limiting groove wall.

[0013] Preferably, the one-way valve restricts the flow of lubricating oil to the outside along the oil injection pipe.

[0014] Preferably, the one-way valve includes a one-way control ball, an arc-shaped plate, and a second spring. The second spring is axially installed in the lower part of the oil injection pipe, and the top of the second spring is connected to the one-way control ball. An arc-shaped plate is provided at the top of the one-way control ball. The inner diameter of the oil injection pipe is larger than the outer diameter of the one-way control ball. Multiple oil leakage holes are provided on the arc-shaped plate. In the natural state of the second spring, the one-way control ball blocks the oil leakage holes to seal the inner cavity of the oil injection pipe. In the state of the second spring contraction, the one-way control ball moves downward, and the inner cavity of the oil injection pipe is opened.

[0015] The beneficial effects of this novel micro-volume automatic refueling device are:

[0016] 1. This new type of refueling can achieve high-precision micro-quantity refueling, avoiding waste caused by over-refueling;

[0017] 2. When this new type of equipment is installed on the upper and lower motion components of the riveting equipment, there is no need to provide separate lubrication power. It can realize follow-up lubrication to match changes in production efficiency, without the need for PLC control or manual parameter adjustment, realizing high-frequency intermittent micro-lubrication, and also simplifying the lubrication method. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of this invention to explain this invention, but do not constitute a limitation on this invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of this novel invention;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a distribution diagram of the quantitative oil chamber and the oil supply chamber of this novel invention.

[0022] 01. Oil supply chamber; 02. Metering oil chamber; 1. Oil reservoir; 2. Cylinder body; 3. Drive mechanism; 4. Chain pin; 5. Spring 1; 6. Oil separator rubber ring; 7. One-way control ball; 8. Spring 2; 9. Oil passage; 10. Sealing ring; 11. Hollow piston assembly; 111. Oil injection pipe; 112. Plug; 113. Spring support; 114. Piston body; 12. Arc plate; 13. Limiting groove. Detailed Implementation

[0023] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0024] The following embodiments can be understood as explaining a partial structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0025] Example 1

[0026] A micro-volume automatic refueling device, such as Figure 1-3As shown, the device includes an oil reservoir 1 for storing lubricating oil, a drive mechanism 3, and a refueling device body. The refueling device body includes a cylinder 2, a spring 5, an oil-separating rubber ring 6, and a hollow piston assembly 11. The hollow piston assembly 11 includes a piston body 114, an oil injection pipe 111 fixed longitudinally at the lower middle of the piston body 114, a one-way valve located in the oil injection pipe 111, and a plunger 112 located at the upper middle of the piston body 114 and extending longitudinally upward. The upper part of the plunger 112 is formed by a reduced diameter section, and a spring support 113 is provided at the top of the reduced diameter section. A spring 5 is provided between the spring support 113 and the top of the inner cavity of the cylinder 2. The lower end of the cylinder 2 is formed by an expanded diameter groove 13, and an oil-separating rubber ring is provided at the upper part of the groove 13. The piston body 114 is provided at the lower part of the rubber ring 6. The oil-separating rubber ring 6 is a conical structure with a central opening. The outer surface of the conical structure is opposite to the upper end of the piston body 114. The reduced diameter section passes through the opening. The opening is used in conjunction with the plunger 112. When the opening and the plunger 112 are tightly fitted and form a sealing structure, a metering oil chamber 02 is formed between the oil-separating rubber ring 6 and the piston body 114. The oil injection pipe 111 passes through the through hole at the lower end of the cylinder 2 and is slidably connected to the through hole. The piston body 114 is provided with an oil passage 9 that communicates with the inner cavity of the oil injection pipe 111. The oil reservoir 1 is connected to the cylinder 2 through an oil pipe. The driving mechanism 3 is a linear telescopic device. The telescopic end of the linear telescopic device is fixedly connected to the top of the cylinder 2 and drives the cylinder 2 to extend and retract up and down.

[0027] Example 2

[0028] Based on Example 1, this example discloses, as follows: Figure 1 As shown, the drive mechanism 3 is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or up-and-down movement component of a riveting device.

[0029] Example 3

[0030] Based on Examples 1 and 2, this example discloses, as follows: Figure 1-3 As shown, the piston body 114 has an annular groove on its outer periphery, and a sealing ring 10 is engaged in the annular groove. The piston body is slidably connected to the inner wall of the limiting groove 13 through the sealing ring 10.

[0031] Example 4

[0032] Based on Examples 1, 2, and 3, this example discloses, as follows: Figure 2 As shown, the outer edge of the oil-separating rubber ring 6 is sealed and fixedly connected to the top of the groove wall of the limiting groove 13.

[0033] Example 5

[0034] Based on embodiments 1, 2, 3, and 4, this embodiment discloses, as follows: Figure 2 As shown: The one-way valve allows lubricating oil to flow outward along the oil injection pipe 111.

[0035] Specifically, the one-way valve includes a one-way control ball 7, an arc plate 12, and a second spring 8. The lower part of the oil injection pipe 111 is axially installed with the second spring 8, and the top of the second spring 8 is connected to the one-way control ball 7. The top of the one-way control ball 7 is provided with an arc plate 12. The inner diameter of the oil injection pipe 111 is larger than the outer diameter of the one-way control ball 7. The arc plate 12 has multiple oil leakage holes. In the natural state of the second spring 8, the one-way control ball 7 blocks the oil leakage holes to seal the inner cavity of the oil injection pipe 111. In the state of the second spring 8 contraction, the one-way control ball 7 moves down, and the inner cavity of the oil injection pipe 111 is opened.

[0036] The working principle of this new type:

[0037] The oil reservoir 1 is connected to the cylinder 2 via an oil pipe for oil supply. The drive mechanism 3 (which can be a separate pneumatic cylinder, hydraulic cylinder, or the up-and-down movement assembly of a riveting device) is activated, causing the cylinder 2 to press down, bringing the end of the oil injection pipe 111 into contact with the chain pin 4. As the pressure continues, the spring 5 is compressed, and the opening of the oil-separating rubber ring 6 engages with the plug 112, separating the oil in the metering oil chamber 02 and the oil supply chamber 01. With continued downward pressure, the oil-separating rubber ring 6 changes from a conical shape to almost flat, gradually reducing the space of the metering oil chamber until it disappears. The oil in the metering oil chamber is then squeezed out from the end of the oil injection pipe. During the process, the one-way control ball 7 is pushed open by the oil pressure, the second spring 8 is compressed, and the oil is added to the end of the chain pin 4. The oiling is completed, the drive mechanism 3 is started, and the cylinder 2 is raised. The end of the oil injection pipe 111 is separated from the chain pin 4. At this time, the second spring 5 extends and pushes the piston body 114 back to the starting position. The oil separator rubber ring 6 returns to the conical shape and separates from the plunger 112. The metering oil chamber space is restored, the second spring 8 extends and resets, pushing the one-way control ball 7 back to its original position and sealing the inner cavity of the oil injection pipe. The oil in the oil supply chamber 01 is sucked into the metering oil chamber 02, completing one cycle, and preparing to add oil to the next pin.

Claims

1. A micro-volume automatic refueling device, characterized in that: The system includes an oil reservoir for storing lubricating oil, a drive mechanism, and a refueling device body. The refueling device body includes a cylinder, a spring, an oil-separating rubber ring, and a hollow piston assembly. The hollow piston assembly includes a piston body, an oil injection pipe fixed longitudinally at the lower middle of the piston body, a one-way valve inside the oil injection pipe, and a plunger extending longitudinally upwards from the upper middle of the piston body. The upper part of the plunger is narrowed to form a reduced-diameter section, and a spring support is provided at the top of the reduced-diameter section. A spring is provided between the spring support and the top of the cylinder cavity. The lower end of the cylinder body is widened to form a limiting groove. An oil-separating rubber ring is provided at the upper part of the limiting groove, and a spring is provided at the lower part... The system includes a piston body, an oil-separating rubber ring with a central opening (a conical structure), the outer surface of which faces the upper end of the piston body, a reduced-diameter section passing through the opening, and a piston plunger used in conjunction with the piston. When the opening and plunger are tightly fitted and form a sealing structure, a metered oil chamber is formed between the oil-separating rubber ring and the piston body. An oil injection pipe passes through a through-hole at the lower end of the cylinder and is slidably connected to the through-hole. The piston body has an oil passage communicating with the inner cavity of the oil injection pipe. An oil reservoir is connected to the cylinder via an oil pipe. The drive mechanism is a linear telescopic device, the telescopic end of which is fixedly connected to the top of the cylinder and drives the cylinder to extend and retract vertically.

2. The micro-volume automatic refueling device as described in claim 1, characterized in that: The driving mechanism is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or the up-and-down movement component of a riveting device.

3. The micro-volume automatic refueling device as described in claim 2, characterized in that: The piston body has an annular groove on its outer periphery, and a sealing ring is engaged in the annular groove. The piston body is slidably connected to the inner wall of the limiting groove through the sealing ring.

4. The micro-volume automatic refueling device as described in claim 3, characterized in that: The outer edge of the oil-separating rubber ring is sealed and fixedly connected to the top of the limiting groove wall.

5. The micro-volume automatic refueling device as described in claim 4, characterized in that: The one-way valve only allows lubricating oil to flow outward along the oil injection pipe.

6. The micro-volume automatic refueling device as described in claim 5, characterized in that: The one-way valve includes a one-way control ball, an arc-shaped plate, and a second spring. The second spring is installed axially in the lower part of the oil injection pipe, and the top of the second spring is connected to the one-way control ball. An arc-shaped plate is provided at the top of the one-way control ball. The inner diameter of the oil injection pipe is larger than the outer diameter of the one-way control ball. Multiple oil leakage holes are opened on the arc-shaped plate. In the natural state of the second spring, the one-way control ball blocks the oil leakage holes to seal the inner cavity of the oil injection pipe. In the state of the second spring contraction, the one-way control ball moves down, and the inner cavity of the oil injection pipe is opened.

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