CN211040428U

CN211040428U - Lubrication control device

Info

Publication number: CN211040428U
Application number: CN201921715824.1U
Authority: CN
Inventors: 张鹏飞
Original assignee: Liaoning Zhongwang Machinery Equipment Manufacturing Co Ltd
Current assignee: Liaoning Zhongwang Machinery Equipment Manufacturing Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-07-17
Anticipated expiration: 2029-10-14

Abstract

The utility model relates to a lubrication control device, belong to the automation field, the device includes AC 380V-AC 220V transformer, AC 380V-AC 220V transformer is parallelly connected with power master indicator H L1, power master indicator H L1 is parallelly connected with interval time relay KT1 and interval time relay KT2 respectively, interval time relay KT1 and interval time relay KT2 are connected to the interface 8 of the preceding change-over switch SA1 of panel through switch KA1 and KA2 reconnection, relay KT1, alternating current contactor KM and work pilot lamp H L2 are connected to the interface 12 of the preceding change-over switch SA1 of panel through switch KA3, the lubricated production efficiency that causes of artifical mechanical equipment can be solved to this device, there is the potential safety hazard and lubricated mechanical life problem that does not scientifically influence.

Description

Lubrication control device

Technical Field

The utility model belongs to the automation field relates to a lubrication control device.

Background

With the progress of modern industry, people pay more and more attention to the production efficiency, energy conservation and safety of mechanical equipment. A particularly important item in addition to optimizing the design of the plant for this purpose is the lubrication of the mechanical plant.

The importance of lubrication to machinery is well known to those familiar with machinery, but most production line machinery is still in the manual lubrication phase.

Do not allow lubrication to cause systematic problems with the equipment operating poorly. When the amount of lubrication of a piece of equipment is not proper or correct, it may have an adverse effect on the equipment, which may even be exaggerated in the way that the entire plant is functioning properly. This is proven by independent research data and scientific evidence.

The american society of tribology and lubrication engineers reports that over 50% of bearing failures are due to substandard practice of lubrication in machinery. Furthermore, 60% of mechanical failures are due to insufficient or improper lubrication. The resulting production losses are as high as 2400 billion dollars each year-this is in the united states alone, not to mention globally.

Manual lubrication has many drawbacks:

1. influence production efficiency, need shut down for safety considerations during manual lubrication, like this just extravagant production time, be unfavorable for improving production efficiency.

2. The potential safety hazard exists, even if the machine is shut down to carry out manual lubrication, some lubrication points of some large-scale equipment need to be operated aloft, and thus certain potential safety hazard exists for personal safety.

3. The lubrication is not scientific, and the manual lubrication cannot achieve the purpose of filling lubricating oil into mechanical equipment scientifically at regular time and quantity. It is known that more and less lubricating oil will affect mechanical equipment.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a lubrication control device.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a lubrication control device comprises AC 380V-AC 220V transformers;

the AC 380V-AC 220V transformers are connected with a power supply main indicator lamp H L1 in parallel;

the power supply main indicator light H L1 is respectively connected with the interval time relay KT1 and the interval time relay KT2 in parallel, the interval time relay KT1 and the interval time relay KT2 are connected with the interface 8 of the panel front conversion switch SA1 through the switches KA1 and KA 2;

the power supply main indicator lamp H L1 is also respectively connected with a relay KT1, an alternating current contactor KM and a work indicator lamp H L2 in parallel, wherein the relay KT1, the alternating current contactor KM and the work indicator lamp H L2 are connected to an interface 12 of a front panel conversion switch SA1 through a switch KA 3;

the power supply main indicator lamp H L1 is also respectively connected in parallel with a relay KT2 and an oil supply pump stop indicator lamp H L3;

the power supply main indicator lamp H L1 is also respectively connected with a relay KT3 and a comprehensive fault indicator lamp H L4 in parallel;

the power supply main indicator lamp H L1 is also respectively connected with a relay KT4 and an oil level low indicator lamp H L5 in parallel;

the power supply total indicator lamp H L1 is also connected in parallel with the oil level high indicator lamp H L6.

Optionally, the relay KT3 and the comprehensive fault indicator lamp H L4 are connected in series with the alarm reset button SB and then connected to the AC 380V-AC 220V for voltage transformation.

The beneficial effects of the utility model reside in that: the device can solve the problems of low production efficiency, potential safety hazard and unscientific lubrication on mechanical service life caused by lubrication of the artificial mechanical equipment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a circuit diagram of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to 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, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

As shown in FIG. 1, the lubrication control device comprises AC 380V-AC 220V transformers;

The relay KT3 and the comprehensive fault indicator lamp H L4 are connected in series with the alarm reset button SB and then are connected to AC 380V-AC 220V for voltage transformation.

1. The use conditions are as follows:

1.1, main loop power supply: three-phase AC400V/50HZ

1.2, control loop power supply: AC230V/50HZ and DC24V

1.3, altitude not more than 1KM

1.4, the ambient temperature is not higher than +70 ℃, and is not lower than-10 DEG C

1.5, the maximum relative humidity of the ambient environment humidity is less than 85%, the average minimum temperature is 25 ℃, and the surface of the electrical component is easily damaged due to condensation caused by large temperature change.

1.6, where there is no significant shock or impact.

1.7, in an environment without flammable and explosive risks, and the air does not contain corrosive gas and conductive dust.

1.8, vertically and fixedly installing, wherein the installation inclination is not more than 5 degrees.

2. Electrical principle:

the electrical control box of the oil supply system of the lubrication pump station has the modes of manual operation, remote operation, automatic operation and the like. Before electrifying, the oil supply monitoring time relays KT1, KT2 are set, the oil supply interval time KT1 is set within 1H-99H arbitrarily, and the oil supply monitoring time KT2 is set within 15M-30M arbitrarily. The counter is set to have 2 switching-over control signal CT actions, and the fuel feed pump enters the interval time to prepare for the next restart work of the fuel feed pump.

2.1, Manual control

When the panel front change-over switch SA is turned to a manual position, the oil supply pump is immediately started to start operation under the normal condition of the system, lubricating oil is supplied to the pipeline A, the work indicator lamp H L is turned on, when the pressure of the pipeline A reaches a reversing threshold value, the pipeline B is automatically reversed to supply the lubricating oil, and the working mode can continuously supply oil to the pipeline A/B in a non-interval time circulation mode until the pipeline A/B is full.

2.2, automatic control

When a front panel change-over switch SA is rotated to an automatic position, an interval time relay KT1 starts to time, when set time is reached, a lubricating pump immediately works to supply lubricating oil to a pipeline A, a working indicator lamp H L is on, when the pressure of the pipeline A reaches a reversing threshold value, the lubricating pump automatically reverses to the pipeline B to supply the lubricating oil, a reversing valve gives 1 control signal, when the pressure of the pipeline B reaches the reversing threshold value, 1 control signal is given, a normally closed contact of a counter CT is opened, the oil supply pump stops working, and next lubricating interval time is entered.

2.3, remote control

When change over switch SA before with the panel changes to the remote location, relay KA2 work gives 1 group remote signal (25, 26), and control terminal gives a remote control start signal (05, 06), fuel feeding pump work operating signal (25, 30), when the oil storage tank oil level on the fuel feeding pump appears the low oil level, the system reports to the police lubricating pump stop work, if when the system breaks down: the oil supply pump is overloaded, the reversing valve is overtime, the oil level is low and the like, the system sends out fault alarm signals (25 and 28), an operator can control the running state of the equipment in a main control room, the operation can also be used for providing acquisition control signals for a computer, and a user can select to use the system according to the equipment condition.

2.4 oil quantity monitoring

The lubricating electric control system provides an oil quantity monitoring point which is a pulse signal, and when the oil supply system runs normally and has no fault, a single pulse is a fixed flow. Instantaneous flow and accumulated flow can be obtained through pulse calculation.

3. An alarm system:

in routine maintenance ①, it is necessary to check if the output pressure of lubricating pump is normal ②, check if main pipeline has leakage ③, check if mother distributor has blockage, check if hydraulic change valve is normal ④, check if the circulating counting switch of mother distributor or hydraulic change valve is normal, after the above fault is removed, it is necessary to press reset button to start when restarting lubricating pump, and press reset button to restart the equipment for oil supply after timely checking maintenance.

4. Principle of operation of each part

4.1, lubricating the pump motor. The function is as follows: the power component.

4.2, QF 1: a circuit breaker. The function is as follows: and the power supply of the whole control box is controlled to be switched on and off.

4.3, AC 380V-AC 220V. The function is as follows: and the transformer converts 380V voltage into 220V voltage. And plays an electrical isolation role.

And 4.4, indicating that the circuit is on and off.

4.5, H L1, namely a power supply general indicator light, the circuit is closed, and the indicator light is on.

4.6, when the manual circuit is switched on, when the change-over switch SA in front of the panel is turned to the manual position, the oil supply pump is immediately started to operate under the normal condition of the system, the lubricating oil is supplied to the pipeline A, the work indicator lamp H L2 is on, when the pressure of the pipeline A reaches the reversing threshold value, the pipeline B is automatically reversed to supply the lubricating oil, the working mode can continuously supply the lubricating oil to the pipeline A/B in a non-interval time circulation mode, and when the change-over switch is turned to the stop position, the working mode is finished (the non-pressure meter is manually controlled by a knob, automatically controlled by a time relay and a counter, and works according to a remote P L C instruction during remote operation)

4.7, when the automatic control circuit is switched on, when a front panel change-over switch SA is switched to an automatic position, a time interval relay KT1 starts to time, when the set time is reached, a lubricating pump immediately works to supply lubricating oil to a pipeline A, a working indicator lamp H L2 is on, when the pressure of the pipeline A reaches a reversing threshold value, the pipeline B is automatically reversed to supply the lubricating oil, meanwhile, the reversing valve gives 1 control signal, when the pressure of the pipeline B reaches the reversing threshold value, 1 control signal is given, a normally closed contact of a counter CT is disconnected, the oil supply pump stops working, and the next lubricating interval time is started (the time interval is set to 5 minutes, for example, KT1 is set to work every 5 minutes through KT 1)

4.8 and KT2, namely a reversing extension relay, wherein if no reversing signal is generated due to oil leakage of a pipeline or fault of a reversing valve in the set time of KT2, the KT2 acts to be closed, an oil supply pump stops working, an H L3 lamp is turned on, and the system gives an alarm when overtime.

4.9 and H L3, a reversing overtime indicator light, wherein the light is on for explaining, the reversing of the A, B pipeline is delayed, and whether the oil leakage of the pipeline exists or not needs to be detected.

4.10, H L5, oil level low indicator lamp, wherein the indicator lamp is turned on when the oil level is low and the standard value is reached.

4.11, H L6 oil level high indicator lamp, wherein the indicator lamp is turned on when the oil level is high and the standard value is reached.

4.12, H L4, comprehensive fault indicator lamps H L3, H L5 and H L6, wherein any indicator lamp is turned on, and H L4 lamps are all turned on.

4.13, CT: a counter: used for counting the action times of the reversing valve.

4.14, KM: an alternating current contactor: a main loop control element for connecting or disconnecting the oil pump motor power supply and controlling the operation and stop of the oil pump by the contactor when the breaker is switched on (the operation and disconnection of the contactor are completed by the power-on and power-off of the internal electromagnet unlike the breaker.)

4.15, SB: alarm reset button: when the system has a fault, the fault state can be locked so that an operator can check the fault reason, and the fault locking state can be released only by pressing a fault reset button after the fault is eliminated.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A lubrication control device characterized by: the transformer comprises AC 380V-AC 220V transformers;

2. The lubrication control device of claim 1, wherein the relay KT3 and the comprehensive fault indicator lamp H L4 are connected in series with the alarm reset button SB and then are connected to AC 380V-AC 220V for voltage transformation.