Adjustable electromagnetic oil feeder

Abstract

The utility model relates to the technical field of oil supply for automatic wetting, in particular to an adjustable electromagnetic oil feeder which is used for solving the problems that an existing oil feeder is fixed in displacement, inaccurate in flow calculation, difficult in replacement of an electromagnetic valve and the like. The oil feeder valve body part is composed of a metering valve body and a reversing valve body which are integrated into a whole and communicated through an oil way channel. A first cavity and a second cavity are formed in the reversing valve body, the electromagnetic reversing valve and the piston are arranged in the reversing valve body, and the metering plug penetrates through a through hole in the lower end of the metering valve body to make contact with the lower end of the piston. According to the optimized structure, the detachable T-shaped metering plug can change the effective stroke of the piston to achieve accurate adjustment of the displacement; the high-precision displacement sensor in the metering valve body is matched with the magnet in the piston to monitor the position change of the piston in real time and accurately calculate the oil supply amount.

Description

Technical Field

[0001] This utility model relates to the field of automatic lubrication technology, specifically to an adjustable electromagnetic oiler. Background Technology

[0002] The current market offers a wide variety of lubricators for point lubrication, but several problems are prevalent. Because most are designed based on specific needs and site conditions, there is a lack of standardized specifications for lubricators. This not only increases procurement and maintenance costs but also significantly limits their application. More importantly, existing lubricators lack precision in flow calculation, failing to meet the diverse and sophisticated needs of industrial production and equipment maintenance. Technological innovation is urgently needed to solve these problems.

[0003] Chinese utility model patent application number 201420615760.9 discloses an electromagnetic oiler, including a valve body, a first valve chamber, a second valve chamber, a valve core, a copper valve core, an oil inlet, an oil outlet, an oil inlet channel, an oil outlet channel, a solenoid valve, and a proximity switch. However, the space inside the second valve chamber used to contain the oil in this utility model is a fixed cavity that cannot be changed. This makes it impossible to accurately control the oil squeezed out each time the valve core moves. In addition, the solenoid valve in this utility model is fixed inside the first valve chamber. If the solenoid valve is damaged, it will be difficult to replace. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model proposes an adjustable electromagnetic oiler, which overcomes the shortcomings of the prior art and provides an electromagnetic oiler with a simple structural design, convenient manufacturing process, wide applicability to various different field environments, and simple and precise flow regulation function.

[0005] The technical solution adopted in this utility model is:

[0006] The valve body is composed of an integrated metering valve body and a reversing valve body, which are connected by an oil passage. The reversing valve body has a first cavity, in which an electromagnetic reversing valve is inserted. The metering valve body has a second cavity, in which a piston is movably disposed. The lower end of the metering valve body has a through hole that penetrates the second cavity, through which a metering plug for controlling the oil volume passes and contacts the lower end of the piston.

[0007] As a preferred embodiment, the metering plug has a T-shaped structure and is detachably disposed at the lower end of the metering valve body. The contact surface between the metering plug and the metering valve body is also provided with a sealing structure to prevent oil leakage.

[0008] As a preferred embodiment, the oil passage includes a first oil passage and a second oil passage, with the first oil passage located at the upper end of the second cavity and the second oil passage located at the lower end of the second cavity.

[0009] As a preferred embodiment, the piston has a protrusion at its upper end. When the piston moves to the uppermost end of its stroke, the upper end of the protrusion contacts the valve body of the metering valve and ensures that there is a gap between the piston and the first oil passage. The piston is also provided with a magnet for indicating the piston's movement state.

[0010] As a preferred embodiment, a sensor is also provided above the metering valve body for cooperating with the magnet to monitor the piston stroke. The reversing valve body is provided with an oil inlet and an oil outlet, and the oil inlet, oil outlet and oil passage are all connected to the first cavity inside the reversing valve body.

[0011] As a preferred embodiment, the power unit of the electromagnetic directional valve is detachably installed on the upper end of the valve body. The valve body and the electromagnetic directional valve adopt a modular design, and each component is connected through a standardized interface. When the electromagnetic directional valve malfunctions or needs performance adjustment, it can be quickly disassembled and assembled like a standardized part.

[0012] The beneficial effects of this utility model are:

[0013] To address the shortcomings of existing technologies, this invention provides an adjustable electromagnetic oiler. Through optimized structural design, this invention achieves the following technical advantages:

[0014] Firstly, this invention solves the problem of existing oilers having a fixed displacement and being unable to meet diverse needs by setting a detachable T-shaped metering plug. The contact surface between the metering plug and the metering valve body has a sealing structure to prevent oil leakage. Furthermore, by replacing the metering plug with different specifications, the effective stroke of the piston in the valve chamber can be changed, achieving precise adjustment of the displacement. This allows the oiler to adapt to different equipment and operating conditions, greatly enhancing its applicability and flexibility.

[0015] Secondly, this utility model adopts a cartridge valve structure for its electromagnetic directional valve, overcoming the drawback of difficulty in replacing damaged electromagnetic valves in existing technologies. The cartridge valve chamber within the directional valve body adopts a modular design, with each component connected through standardized interfaces. When the electromagnetic directional valve malfunctions or requires performance adjustment, it can be quickly disassembled and reassembled like a standardized part, significantly improving maintenance efficiency and equipment operational stability, and reducing maintenance costs.

[0016] Thirdly, this invention incorporates a high-precision displacement sensor and a magnet within the metering valve body, solving the problem of inaccurate flow calculation in existing lubricators. The sensor monitors piston position changes in real time, transmitting the signal to the control system. Combined with the piston stroke volume, the oil supply is accurately calculated, achieving both simplicity and accuracy in flow calculation. This ensures precise lubrication control and meets the refined needs of industrial production and equipment maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the piston moving to the end of its stroke.

[0020] In the diagram: 1. Sensor, 2. Metering valve body, 3. Magnet, 4. Piston, 5. Metering plug, 6. Solenoid directional valve, 7. Directional valve body, 8. Oil inlet, 9. Oil outlet, 10. First oil circuit, 11. Second oil circuit. Detailed Implementation

[0021] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," etc., used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one; terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0023] To more clearly describe the specific structural components of this adjustable electromagnetic lubricator, in conjunction with the attached... Figure 1 -Appendix Figure 2 This embodiment is described as follows:

[0024] This embodiment provides an adjustable electromagnetic oiler, the valve body of which is composed of an integrated metering valve body 2 and a reversing valve body 7, which are connected by an oil passage. The reversing valve body 7 has a first cavity, in which an electromagnetic reversing valve 6 is inserted. The metering valve body 2 has a second cavity, in which a piston 4 is movably disposed. The lower end of the metering valve body 2 has a through hole that penetrates the second cavity, and a metering plug 5 for controlling the oil volume passes through the through hole and contacts the lower end of the piston 4.

[0025] A removable T-shaped metering plug 5 is installed inside the valve chamber of the metering valve body 2, and its contact surface with the valve body 2 is equipped with a sealing structure. This design effectively solves the problem that traditional oilers, due to their fixed displacement, cannot adapt to diverse needs. By replacing the metering plug 5 with different specifications, operators can precisely adjust the effective stroke of the piston 4 within the valve chamber, thereby achieving flexible adjustment of the displacement. When providing lubrication for different models of industrial equipment, simply replacing the corresponding metering plug 5 can meet the specific oil supply requirements of the equipment, greatly enhancing the applicability and versatility of the oiler.

[0026] Meanwhile, the valve body 7 of the directional valve has a first chamber for installing the solenoid directional valve 6. The chamber follows a modular design concept, and the components are connected through standardized interfaces. When the solenoid directional valve 6 malfunctions or requires performance adjustment, maintenance personnel can quickly disassemble and replace the cartridge valve as if replacing a standardized part, which greatly improves maintenance efficiency, reduces equipment downtime, and ensures production continuity.

[0027] Furthermore, a high-precision displacement sensor 1 is installed inside the metering valve body 2, which works in conjunction with the magnet 3 inside the piston 4. Sensor 1 can monitor the position changes of the piston 4 in real time and transmit the data to the control system. Based on the number of piston 4 movements fed back by sensor 1 and the volume of one stroke of the piston 4, the control system accurately calculates the oil supply. This flow calculation method is not only simple and easy to implement but also highly accurate, effectively solving the problem of inaccurate flow calculation in existing oilers and providing reliable lubrication assurance for industrial production and equipment maintenance.

[0028] In order to reduce the resistance of the oil flowing in the first oil passage 10 and the second oil passage 11 and improve the working efficiency of the oiler, the inner surfaces of the first oil passage 10 and the second oil passage 11 are treated with high-precision machining technology to achieve an extremely low surface roughness. At the same time, the shape of the channel is optimized and a streamlined structure is adopted to ensure that the oil can pass through smoothly.

[0029] The method for calculating oil flow rate is as follows:

[0030] Flow rate = Number of piston movements detected by the sensor × Volume of one piston stroke;

[0031] The volume of a piston's complete stroke = the cross-section of the second chamber × the distance of a piston's complete stroke.

[0032] In actual operation, when the solenoid directional valve 6 is energized, the magnetic field it generates drives the cartridge valve to operate, connecting the inlet 8 to the second oil passage 11 and the outlet 9 to the first oil passage 10. Lubricating grease flows from the inlet 8 into the second oil passage 11 and then into the valve chamber of the metering valve body 2. The grease pushes the piston 4 to move within the valve chamber, and the grease in the chamber enters the first oil passage 10 and is discharged from the outlet 9. The piston 4 drives the magnet 3 to move synchronously, and the sensor 1 monitors the position change of the piston 4 in real time and feeds the signal back to the control system. When the piston 4 moves to the set position, the control system sends a signal to de-energize the solenoid directional valve 6, causing the cartridge valve to switch directions, connecting the inlet 8 to the first oil passage 10 and the outlet 9 to the second oil passage 11. Lubricating grease flows from the inlet 8 into the first oil passage 10 and then into the valve chamber of the metering valve body 2. The grease pushes piston 4 again within the valve chamber, allowing it to enter the second oil passage 11 and exit from outlet 9. Piston 4 drives magnet 3 to move synchronously, and sensor 1 monitors the positional changes of piston 4 in real time, feeding the signal back to the control system. The control system accurately calculates the oil supply based on the number of piston 4 movements detected by sensor 1 and the volume of one stroke. Operators can flexibly adjust the flow rate of the metering chamber by adjusting the specifications of the metering plug 5 to meet the lubrication needs of different equipment and operating conditions, according to actual work requirements.

[0033] It should be noted that although the present invention has been described through the above embodiments, there may be other various embodiments of the present invention. Without departing from the spirit and scope of the present invention, those skilled in the art can obviously make various corresponding changes and modifications to the present invention, but all such changes and modifications should fall within the scope of protection of the appended claims and their equivalents.

Claims

1. An adjustable electromagnetic oil feeder comprising a valve body portion, characterised in that, The valve body is composed of an integrated metering valve body (2) and a reversing valve body (7), which are connected by an oil passage. The reversing valve body (7) has a first cavity, and the electromagnetic reversing valve (6) is inserted into the first cavity. The metering valve body (2) has a second cavity, and the piston (4) is movably disposed in the second cavity. The lower end of the metering valve body (2) has a through hole that penetrates the second cavity. The metering plug (5) for controlling the oil volume passes through the through hole and contacts the lower end of the piston (4).

2. An adjustable electromagnetic oil feeder according to claim 1, characterized in that The metering plug (5) has a T-shaped structure and is detachably installed at the lower end of the metering valve body (2).

3. An adjustable electromagnetic oil feeder according to claim 2, wherein The contact surface between the metering plug (5) and the metering valve body (2) is provided with a sealing structure to prevent oil leakage.

4. An adjustable electromagnetic oil feeder according to claim 1, wherein The oil passage includes a first oil passage (10) and a second oil passage (11). The first oil passage (10) is located at the upper end of the second cavity, and the second oil passage (11) is located at the lower end of the second cavity.

5. An adjustable electromagnetic oil feeder according to claim 4, wherein The piston (4) has a protrusion at its upper end. When the piston (4) moves to the uppermost end of its stroke, the upper end of the protrusion contacts the valve body (2) of the metering valve and ensures that there is a gap between the piston (4) and the first oil passage (10).

6. An adjustable electromagnetic oil feeder according to claim 5, wherein The piston (4) is also equipped with a magnet (3).

7. An adjustable electromagnetic oil feeder according to claim 6, characterised in that A sensor (1) is also provided above the valve body (2) of the metering valve for cooperating with the magnet (3) to monitor the movement stroke of the piston (4).

8. An adjustable electromagnetic oil feeder according to claim 1, characterized in that, The reversing valve body (7) is provided with an oil inlet (8) and an oil outlet (9). The oil inlet (8), the oil outlet (9) and the oil passage are all connected to the first cavity inside the reversing valve body (7).

9. An adjustable electromagnetic oil feeder according to claim 8, characterised in that The power unit of the electromagnetic reversing valve (6) is detachably mounted on the upper end of the valve body (7).

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