Circulating reciprocating control circuit of lubrication station

Abstract

The utility model relates to a lubrication station circulation reciprocating control circuit which is composed of a power circuit and a control circuit, the power circuit comprises a breaker connected with a three-phase power supply, and the other end of the breaker is sequentially connected with a first fuse, a contactor and a thermal relay. The other end of the thermal relay is connected with a three-phase motor, a second fuse, a stop button and a control part are sequentially arranged on the control circuit, then the control circuit is connected with a zero line, the control part comprises a first control part and a second control part, and a control power supply of the control circuit is separated from a lower port of the first fuse. The circulation reciprocating control circuit of the lubrication station can realize automatic and accurate control of lubricating oil, reduces the maintenance cost and prolongs the service life of equipment.

Description

Technical Field

[0001] The present application relates to the field of lubrication technology, and in particular to a reciprocating control circuit for a lubrication station. Background Art

[0002] During the operation of mechanical equipment, the reciprocating supply of lubricating oil is crucial for the normal operation of the equipment. In the prior art, an automatic lubricating oil filling system is often used to realize the automatic filling of lubricating oil, which is mainly realized by a filling pump. Each pumping process includes an oil suction cycle and a filling cycle. During the oil suction cycle, the lubricating oil in the lubricating oil storage container is sucked into the pressurizing chamber of the automatic filling pump. While the pressurizing chamber of the automatic filling pump is filled, the lubricating oil continues to enter the filling cycle. During the filling cycle, the lubricating oil enters the lubrication pipeline and fills the corresponding filling parts with lubricating oil. However, existing lubricating oils often have problems such as untimely filling, low control accuracy, and poor stability, which makes the equipment prone to wear and overheating during operation. It not only consumes a lot of manpower costs, but also affects the service life of the equipment and reduces the equipment's operating efficiency and stability. Summary of the invention

[0003] The present application aims to provide a reciprocating control circuit for a lubrication station to solve the deficiencies in the prior art. The technical problem to be solved by the present utility model is achieved through the following technical solutions.

[0004] A reciprocating control circuit for a lubrication station, the control circuit consists of a power circuit and a control circuit, wherein the power circuit includes a circuit breaker connected to a three-phase power supply, the other end of the circuit breaker is connected to a first fuse, a contactor and a thermal relay in sequence, the other end of the thermal relay is connected to a three-phase motor, a second fuse, a stop button, and a control unit are arranged in sequence on the control circuit, and then connected to a neutral line, the control unit includes a first control unit and a second control unit, and the control power supply of the control circuit is separated from the lower end of the first fuse.

[0005] Preferably, the first control unit includes a start button and a normally open contact of an intermediate relay connected in parallel, and the second control unit includes an intermediate relay, a time relay, and a contactor coil control part connected in parallel.

[0006] Preferably, the contactor coil control part includes a time relay auxiliary contact and a contactor coil connected in series.

[0007] Preferably, a normally closed contact of a thermal relay is also provided between the start button and the intermediate relay.

[0008] Preferably, the second control unit also includes an operation indicator light connected in parallel with the intermediate relay, the time relay, and the contactor coil control part.

[0009] Preferably, the control circuit further includes a fault indication part, and the fault indication part includes a normally open contact of a thermal relay and a fault indicator light.

[0010] Preferably, the fault indication part is connected in parallel with the control part.

[0011] Preferably, the fault indication part also includes a buzzer, and the fault indicator light is an audible and visual alarm.

[0012] The lubrication station reciprocating control circuit of the present application has the following advantages:

[0013] 1. Automatic control: Through the reciprocating control circuit, the lubrication station can automatically circulate the supply of lubricating oil without frequent manual operation, which greatly improves work efficiency.

[0014] 2. Ensure lubrication effect: The reciprocating control method ensures that the lubricating oil can be continuously and evenly supplied to the parts that need lubrication, effectively reducing equipment wear and extending equipment service life.

[0015] 3. Improve equipment stability: Stable lubricant supply helps maintain stable operation of equipment and reduce equipment failures and downtime caused by poor lubrication.

[0016] 4. Reduce maintenance costs: By optimizing the lubrication process, equipment wear and failure rate can be reduced, thereby reducing equipment maintenance costs.

[0017] 5. Energy saving and consumption reduction: By precisely controlling the circulation volume and circulation time of lubricating oil, unnecessary waste can be avoided, energy consumption can be reduced, and the goal of energy saving and consumption reduction can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the power circuit schematic diagram of the utility model;

[0019] Figure 2 This is the control circuit schematic diagram of the utility model.

[0020] The reference numerals in the accompanying drawings are: 1, circuit breaker, 2, first fuse, 3, contactor, 4, thermal relay, 5, second fuse, 6, stop button, 7, start button, 8, normally closed contact of thermal relay, 9, intermediate relay, 10, normally open contact of intermediate relay, 11, time relay, 12, auxiliary contact of time relay, 13, contactor coil, 14, operation indicator light, 15, normally open contact of thermal relay, 16, fault indicator light DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] like Figure 1-2As shown, the reciprocating control circuit of the lubrication station consists of two parts: a power circuit and a control circuit. The power circuit includes a circuit breaker 1 connected to a three-phase power supply. The other end of the circuit breaker 1 is connected to a first fuse 2, a contactor 3 and a thermal relay 4 in sequence. The other end of the thermal relay 4 is connected to a three-phase motor. The control circuit is provided with a second fuse 5, a stop button 6 and a control unit in sequence, and then connected to a neutral line. The control unit includes a first control unit and a second control unit. The control power supply of the control circuit is separated from the lower end of the first fuse 2.

[0029] Furthermore, the first control unit includes a start button 7 and an intermediate relay normally open contact 10 connected in parallel, and the second control unit includes an intermediate relay 9, a time relay 11, and a contactor coil control part connected in parallel.

[0030] Furthermore, the contactor coil control part includes a time relay auxiliary contact 12 and a contactor coil 13 connected in series.

[0031] Furthermore, a thermal relay normally closed contact 8 is provided between the start button 7 and the intermediate relay 9 .

[0032] Furthermore, the second control unit also includes an operation indicator light 14 connected in parallel with the intermediate relay 9, the time relay 11, and the contactor coil control part.

[0033] Furthermore, the control circuit also includes a fault indication part, which includes a normally open contact 15 of a thermal relay and a fault indicator light 16 .

[0034] Furthermore, the fault indication part is connected in parallel with the control part.

[0035] Furthermore, the fault indication part also includes a buzzer, and the fault indicator light 16 is an audible and visual alarm.

[0036] Working principle and working process:

[0037] Reference Figure 1 The three-phase power supply passes through the circuit breaker QF, then through the fuse FU, then through the contactor KM and the thermal relay FR, and finally reaches the three-phase motor M.

[0038] Reference Figure 2The control circuit is used to control the on and off of the contactor in the power circuit. M10 and N are the control power supplies. The control power supply M10 is separated from the lower port of the first fuse FU1-3, and passes through the second fuse FU4 to the stop button SB1. Three lines are separated from the stop button SB1. The first line leads to the start button SB2, and the second line leads to the normally open contact of the intermediate relay. Then these two control lines converge to one contact at the same time; the third line leads to the normally open contact of the thermal relay, and is connected to the neutral line N through the fault indicator light; the first two control lines converge to one contact and are divided into four lines again, the first line leads to the normally closed contact of the thermal relay, and is connected to the neutral line N through the intermediate relay, the second line leads to the time relay coil and is connected to the neutral line N, the third line leads to the time relay auxiliary contact, and is connected to the neutral line N through the contactor coil, the fourth line leads to the running indicator light and is connected to the neutral line N, and all the neutral lines converge together.

[0039] When starting, press the start button SB2, the intermediate relay coil is energized, the normally open contacts of the intermediate relay are energized and self-locked to form a circuit, the time relay is energized, the operation indicator light is on, and when the set time interval is reached, the auxiliary contacts of the time relay are energized, the contactor coil KM is energized, the main circuit contactor is energized, and the oil pump M starts to operate; when the set operating time is reached, the auxiliary contacts of the time relay KT are disconnected, the contactor coil KM loses power, the main circuit contactor is disconnected, and the oil pump stops running.

[0040] When the motor is overloaded or overheated, the metal sheet inside the thermal relay bends due to the heat, pushing the normally closed contacts of the thermal relay to open, the intermediate relay coil is de-energized and released, and at the same time the contactor coil KM loses power, the motor is disconnected from the power supply and stops rotating; at the same time, the normally open contacts of the thermal relay close and the fault indicator light comes on; when the thermal relay cools down, the thermal relay is reset and the fault indicator light goes out.

[0041] In practical applications, in order to facilitate distinction, the running indicator light can be green and the fault indicator light can be red.

[0042] It should be noted that the above detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present application belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described in the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0045] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0046] For ease of description, spatially relative terms, such as "above", "above", "on the upper surface of", "above", etc., may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0047] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0048] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reciprocating control circuit for a lubrication station, characterized in that: The control circuit is composed of two parts, namely a power circuit and a control circuit, wherein the power circuit comprises a circuit breaker (1) connected to a three-phase power supply, the other end of the circuit breaker (1) is connected in sequence to a first fuse (2), a contactor (3) and a thermal relay (4), the other end of the thermal relay (4) is connected to a three-phase motor, the control circuit is provided with a second fuse (5), a stop button (6) and a control unit in sequence, and then connected to a neutral line, the control unit comprises a first control unit and a second control unit, and the control power supply of the control circuit is separated from the lower end of the first fuse (2).

2. A reciprocating control circuit for a lubrication station according to claim 1, characterized in that: The first control unit comprises a start button (7) and an intermediate relay normally open contact (10) connected in parallel, and the second control unit comprises an intermediate relay (9), a time relay (11), and a contactor coil control part connected in parallel.

3. A reciprocating control circuit for a lubrication station according to claim 2, characterized in that: The contactor coil control part comprises a time relay auxiliary contact (12) and a contactor coil (13) connected in series.

4. A reciprocating control circuit for a lubrication station according to claim 2, characterized in that: A thermal relay normally closed contact (8) is also provided between the start button (7) and the intermediate relay (9).

5. A reciprocating control circuit for a lubrication station according to claim 3, characterized in that: The second control unit also includes an operation indicator light (14) connected in parallel with the intermediate relay (9), the time relay (11), and the contactor coil control part.

6. A reciprocating control circuit for a lubrication station according to claim 1, characterized in that: The control circuit also includes a fault indication part, which includes a normally open contact (15) of a thermal relay and a fault indicator light (16).

7. A reciprocating control circuit for a lubrication station according to claim 6, characterized in that: The fault indicating part is connected in parallel with the control part.

8. A reciprocating control circuit for a lubrication station according to claim 7, characterized in that: The fault indication part also includes a buzzer, and the fault indicator light (16) is an audible and visual alarm.

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