CN2039685U - Measuring and controlling system for quantitative loading - Google Patents
Measuring and controlling system for quantitative loading Download PDFInfo
- Publication number
- CN2039685U CN2039685U CN 88217240 CN88217240U CN2039685U CN 2039685 U CN2039685 U CN 2039685U CN 88217240 CN88217240 CN 88217240 CN 88217240 U CN88217240 U CN 88217240U CN 2039685 U CN2039685 U CN 2039685U
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- control system
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- loading
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Abstract
The utility model discloses a measuring and controlling system which is used for improving the loading weight of a dustpan and is composed of a hydraulic cylinder, a detection system, a control system and a display system. The measured weight is borne by the hydraulic cylinder piston; the detection system is arranged on the hydraulic cylinder body; the weight of the dustpan is transmitted to a semiconductor piezoresistive transducer of the detection system by a piston and working fluid; a pressure signal is converted into an electrical signal, and the electrical signal is amplified by an amplifying circuit and is treated by a microcomputer control system to be used as a control signal of a loading mechanism. The utility model has the advantages of simple circuitry, high sensitivity, high working precision and long service life; the measuring and controlling system can continuously display the whole loading process.
Description
The utility model relates to a kind of quantitative loading and measures control system, particularly a kind of mensuration and control system that is used for down-hole lifting skip loading weight.
At present, the mensuration of skip hoisting weight adopts and presses magnetic cell to realize under the domestic coal mine, because the condition of down-hole is more abominable, causes this device cisco unity malfunction, and therefore many mines only depend on the way of timing, constant volume to control the lifting weight of skip bucket.But content difference because of spoil in the coal and water, therefore this method can not guarantee the quantitative loading and the lifting of skip bucket, and external this device adopts electro connecting pressure gauge to control, signal conditioning adopts relay, this control setup can only be exported full signal, can not show whole loading overall process, and sensitivity is lower, precision is also relatively poor.
The purpose of this utility model is to provide a kind of novel quantitative to load the mensuration system, and it can overcome above-mentioned deficiency of the prior art, has high sensitivity, high precision, and can show characteristics such as cargo-carring overall process.
The purpose of this utility model is achieved in that it by hydraulic actuating cylinder, and checking system, control system and display system are formed.Tested weight is born by hydraulic cylinder piston, checking system is installed on the cylinder body of hydraulic actuating cylinder, it comprises power circuit, pressure sensor, signal amplification circuit, the gravity that piston bore reaches pressure sensor by the aperture on power fluid and the cylinder body, convert pressure signal to electric signal, through the linear process and the amplification of amplifying circuit, after the processing of microprocessor control system, as the control signal of skip loading mechanism.Power circuit of the present utility model can adopt dc constant voltage source or constant current source, and for pressure sensor provides high-precision biasing stabilized power source, pressure sensor adopts semiconductor pressure resistance type sensor.
The utility model adopts the principle of hydraulic sensing, uses semiconductor pressure resistance type sensor as the pressure responsive device of measuring, and adopts microprocessor control system, so circuit is simple, sensitivity and operating accuracy all obviously improve, and long service life, can show whole loading process continuously simultaneously.
Below in conjunction with drawings and Examples the utility model is explained in detail.
Fig. 1 is the structural representation of hydraulic actuating cylinder in a kind of specific embodiment of the utility model.
Fig. 2 is the scheme drawing of the system controlled by computer case of control system in a kind of specific embodiment of the utility model.
Fig. 3 is the electrical schematic diagram of checking system in a kind of specific embodiment of the utility model.
With reference to Fig. 1～3, describe concrete structure of the present utility model in detail.
1 is hydraulic cylinder piston among the figure, skip bucket weight acts on the piston 1,2 are installed on hydraulic cylinder 4 outer walls that communicate with hydraulic cavities for checking system, skip bucket weight reaches the pressure sensor of checking system 2 by piston 1 and power fluid 5, pressure sensor among the utility model embodiment adopts semiconductor pressure resistance type sensor DYC, its input end 016,018 respectively with by integrated package XFC-77 and resistance, the mouth of the constant-current supply that electric capacity is formed links, adjust W1, can change its output current value, the mouth 017 of semiconductor pressure resistance type sensor DYC, 015 links with signal amplification circuit, and it is by integrated package XFC-83 and resistance, elements such as electric capacity are formed.Adjust W2, can make the proportional amplifier zeroing, to guarantee the removing skip bucket tare weight before operation, the output valve that makes amplifier is the net weight of institute's loads in the skip bucket, and the signal of amplifying circuit output is delivered to the system controlled by computer case of control system by cable 12.System controlled by computer case in the present embodiment has three joint boxes, 18 cable and wire mouths, 93 binding posts and a cover control element, can realize the automatic guidance of Load System, can realize manually control by change-over swith 6 and hand push button 7 simultaneously, 9 is the hand push button indicator lamp, 8 is coal tuple word indicator gauge, the changes in weight that can show the coal bunker loading process, the vdc analog signal of amplifying circuit output can be made weight by the display system that well Tong cable reaches the ground hoist house and show, or reaches the metering print system of operation department.
3 is the pressure gauge stand among the figure, can the setting pressure table, to show the pressure of hydraulic cavities, also can be used as to hydraulic cavities gas filed pouring orifice.
Claims (2)
1, a kind of quantitative loading is measured control system, it comprises checking system, control system and display system, it is characterized in that checking system is assembled on a hydraulic actuating cylinder and the outer wall of cylinder block that hydraulic cavities communicates, tested weight is born by the piston of hydraulic actuating cylinder, checking system comprises power circuit, pressure sensor and signal amplification circuit, power circuit adopts dc constant voltage source or dc constant current power supply, and pressure sensor adopts semiconductor pressure resistance type sensor.
2, measure control system according to the said quantitative loading of claim 1, it is characterized in that the vdc analog signal of signal amplification circuit output is passed through well Tong cable transmission to display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217240 CN2039685U (en) | 1988-12-15 | 1988-12-15 | Measuring and controlling system for quantitative loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88217240 CN2039685U (en) | 1988-12-15 | 1988-12-15 | Measuring and controlling system for quantitative loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2039685U true CN2039685U (en) | 1989-06-21 |
Family
ID=4849799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88217240 Pending CN2039685U (en) | 1988-12-15 | 1988-12-15 | Measuring and controlling system for quantitative loading |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2039685U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665200B (en) * | 2009-09-18 | 2011-09-14 | 广东台日电梯有限公司 | Automatic cabin uneven loading detection and compensation device and compensation method thereof |
| CN102976159A (en) * | 2012-12-03 | 2013-03-20 | 吴江市东飞化纤有限公司 | Wire winding tube mechanism of automatically wire winding volume |
| CN111470428A (en) * | 2020-05-08 | 2020-07-31 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
-
1988
- 1988-12-15 CN CN 88217240 patent/CN2039685U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665200B (en) * | 2009-09-18 | 2011-09-14 | 广东台日电梯有限公司 | Automatic cabin uneven loading detection and compensation device and compensation method thereof |
| CN102976159A (en) * | 2012-12-03 | 2013-03-20 | 吴江市东飞化纤有限公司 | Wire winding tube mechanism of automatically wire winding volume |
| CN111470428A (en) * | 2020-05-08 | 2020-07-31 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
| CN111470428B (en) * | 2020-05-08 | 2021-08-24 | 广东省特种设备检测研究院顺德检测院 | Verification device for crane monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| RJ01 | Rejection of invention patent application after publication |