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Lubrication control method and device based on speed control

A control method and technology of speed control, applied to the lubrication of the engine, the parts of the pumping device used for elastic fluid, the speed of the engine, etc., can solve the problems of poor lubrication effect and lack of lubrication, and achieve better lubrication effect, Short lubricating intervals and good lubricating effect

Inactive Publication Date: 2020-04-17
AUTOL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a lubrication control method and device based on speed control, which is used to solve the problem of poor lubrication effect in the prior art, especially the problem of lack of lubrication at high speed

Method used

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  • Lubrication control method and device based on speed control
  • Lubrication control method and device based on speed control
  • Lubrication control method and device based on speed control

Examples

Experimental program
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Embodiment 1

[0027] For a fan system, a speed sensor is installed on the shaft of the fan (or a shaft that rotates synchronously with the shaft of the fan), and the speed of the fan is detected by the speed sensor (herein, the speed is also referred to as speed). The speed sensor uses encoders and other types of equipment to count the number of rotations of the fan shaft (bearing) through pulses, and calculate the speed according to the time used. The speed sensor can directly output the counting pulse; some types of sensors can also directly output the speed result.

[0028] Such as figure 1 As shown, in the embodiment of the method of the present invention, a lubrication interval counter (software counter) is set, the initial value is T0, which is used to decrement, and the lubrication operation is performed when the decrement reaches 0. The specific steps are as follows (need to explain, some of the steps are related to figure 1 The steps in the flowchart are consistent, and some step...

Embodiment 2

[0041] This embodiment is an improvement on the basis of Embodiment 1, as figure 1 As shown, the process of technical fan speed V (step 1.1) and the control of grease injection (step 1.5) take a certain amount of time in the main program flow, so it can be figure 1 The program flow of the program is transformed, and the process of the fan speed V and the grease injection control process form an independent thread, process or interrupt service program, so as to avoid increasing the time of the main program process.

[0042] Specifically, such as figure 2 As described, the method steps of this embodiment are as follows:

[0043] Step 2.1, read the fan speed;

[0044] The calculation of fan speed uses an interrupt service program, and the corresponding timer is interrupted to calculate the speed V, and the obtained speed V is stored in the corresponding variable. So just read that variable.

[0045] In addition, if a speed sensor that directly outputs the result of the speed...

Embodiment 3

[0054] It can be seen from method embodiment 1 and method embodiment 2 that the initial value T0 of the lubrication interval counter is fixed. For a better lubricating effect, T0 can also be set to a variable amount, that is, T0 can be changed in step 1.5 of method embodiment 1 and step 2.4 of method embodiment 2.

[0055] Specifically, the improvement on the basis of the method embodiment 2 is taken as an example for illustration, such as image 3 shown. When it is judged that the count value T of the lubrication interval counter is zero, the grease injection operation flag is set, and the initial value T0 of the lubrication interval counter is calculated, and the initial value T0 of the lubrication interval counter is reset.

[0056] The initial value T0 of the above technical lubrication interval counter can be determined according to the speed V in the current cycle. For example, the program is solidified so that the initial value T0 is x, the speed of the current cycle ...

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Abstract

The invention relates to a lubricating control method and device based on rotating speed control. The lubricating control method comprises the following steps that the rotating speed of equipment to be lubricated is acquired; the decreasing step length of a lubricating interval counter is determined according to the rotating speed, wherein the higher the rotating speed is, the larger the decreasing step length is, the lower the rotating speed is, and the smaller the decreasing step length is; and the counting value of the lubricating interval counter is updated once according to the determineddecreasing step length; if the counting value is zero, the lubricating operation is started, and the lubricating interval counter is reset. According to the method, the problem of a bad lubricating effect in the prior art, especially the lubricating is poor under a high-speed condition can be solved, so that the lubricating effect is greatly improved.

Description

technical field [0001] The invention relates to the field of lubrication control, in particular to a lubrication control method and device based on rotational speed control. Background technique [0002] In the prior art, the control strategy of the lubrication system is formulated based on time. [0003] For example, in an automatically controlled lubrication system, when a fixed time interval is reached, the lubrication equipment is automatically turned on to inject lubricant (including grease injection using a lubrication pump, lubrication nozzle, etc.) for lubrication. [0004] The disadvantage of this control method is that the time interval (hereinafter referred to as the lubrication interval) is fixed, and the operation of mechanical equipment is not necessarily regular, sometimes in a state of high-speed and heavy-load operation, and sometimes in a low-speed and small-load operation state. This makes: if the lubrication interval is too long, it will easily lead to u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16N29/02F04D29/063
CPCF04D29/063F16N29/02F16N2210/16F16N2230/02F16N2230/22F16N2250/08F16N2250/16F16N2270/30F16N2270/70
Inventor 张英强温志建赵民章李建华
Owner AUTOL TECH