CN201188010Y - Apparatus for measuring conveying belt material flow - Google Patents
Apparatus for measuring conveying belt material flow Download PDFInfo
- Publication number
- CN201188010Y CN201188010Y CNU2007201990199U CN200720199019U CN201188010Y CN 201188010 Y CN201188010 Y CN 201188010Y CN U2007201990199 U CNU2007201990199 U CN U2007201990199U CN 200720199019 U CN200720199019 U CN 200720199019U CN 201188010 Y CN201188010 Y CN 201188010Y
- Authority
- CN
- China
- Prior art keywords
- conveying belt
- pendulum
- swing
- mass flow
- signal output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Control Of Conveyors (AREA)
Abstract
The utility model discloses a device for measuring the material flow on a conveying belt. The device includes a protective fixing device, a plurality of free swing devices, swing angle detecting devices corresponding to the free swing devices, a conveying belt speed detecting device and a signal output device; the protective fixing device is used for arranging the swing devices, the swing angle detecting devices and the signal output device and simultaneously providing protection; each swing device comprises a shaft and a pendulum, the shaft is fixed on the protective fixing device, the pendulum can swing a certain angle around the shaft, and the angle of the swing of each pendulum changes according to the change of the thickness of a material on a conveying belt; the pendulums in the middle are matched with the material in the middle of the conveying belt in thickness, and the pendulums at the two margins are matched with the material at the two sides in thickness; the signal output device is used for processing the speed signal of the conveying belt and obtaining the shape information for material accumulated on the conveying belt according to the angle change signal of each swing device, thereby the flux of the material is obtained and output.
Description
[technical field]
The utility model relates to the device of measuring mass flow, is meant the device of measuring mass flow according to solid accumulation shape and conveying belt speed on the measurement conveying belt especially.
[background technology]
In industries such as chemical industry, metallurgy, coal, electric power, agriculturals, in the process of its convey materials, often need often to need the flow of material on the measurement conveying belt.
Existing metering system has: belt claims, nuclear weigh instrument, tilt switch, ultrasound wave coal current sensor, chute blockage switch.
Belt claims directly to measure the weight of material on the conveying belt, and it is bigger influenced by belt tension, involves great expense.Precision is low, and the inhomogeneous time error of material is bigger, and various in addition dynamic belts claim that specific limit is arranged, and complex structure involves great expense simultaneously, installs and safeguard inconvenience.
Nuclear weigh instrument adopts kernel method to measure the thickness of material on the conveying belt, involves great expense, and strong radiation source is arranged, and use, maintenance, handling cost are very high, and this equipment also can produce certain harm to operating personnel and other staff's health simultaneously.
Tilt switch, the inner mercury that adopts is done conductor, when run-off the straight to the 15 ° left and right sides, is switched on or switched off switch, sends warning.Cable links to each other with measuring head, internal switch is directly clashed into, rapid wear, and this equipment also can produce certain harm to operating personnel's health simultaneously.
Ultrasound wave coal current sensor and chute blockage switch use with pipeline in coal stream detect, professional very strong, application is restricted.
[utility model content]
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of device of novel measurement conveying belt mass flow is provided.This device contains protection stationary installation, a plurality of freely swing device and corresponding pendulum angle pick-up unit, conveying belt speed detector and signal output apparatus.The protection stationary installation is used to install pendulous device, pendulum angle pick-up unit and signal output apparatus, and safeguard function is provided simultaneously; Pendulous device comprises axle and pendulum, axle is fixed on the protection stationary installation, pendulum can be swung certain angle around axle, the angular dimension of each pendulum swing changes with the variation in thickness of material on the conveying belt, at those pendulum of centre with regard to the material thickness in the middle of the corresponding conveying belt, and the just corresponding material thickness of carrying on the band edge of the pendulum on both sides, metal, magnet or other special materials are adopted according to the requirement of pendulum angle pick-up unit in the upper end of pendulum; The pendulum angle pick-up unit can be the device that Hall element, displacement transducer, angular transducer etc. can perception pendulous device pendulum angles; Signal output apparatus is used to handle the rate signal of conveying belt and the solid accumulation shape signal that obtains according to the angular rate signal of each pendulous device, obtain mass flow and output, signal output has switching value output, 4～20mA output, digital communication output or numeral to show etc. usually.
Concrete technical scheme is: the protection stationary installation is to be used to protect and install the housing of device, pendulum angle pick-up unit and signal output apparatus of freely swinging, and provides entire measuring device using on-the-spot fixed orifice or fixing snap ring etc. simultaneously.Signal output apparatus is fixed in the protection stationary installation with screw, accepts the signal of each pendulum angle pick-up unit, after treatment, and the mass flow signal on the output conveying belt.The pendulum angle pick-up unit is fixed in the protection stationary installation with screw.The axis of swing of device of freely swinging is connected on the protection stationary installation, and pendulum can be freely swung.
When not having material on the conveying belt, pendulum is in free hang; When material thickness on the conveying belt increased, pendulum was subjected to the material collision and raises, and departs from free hang, and the pendulum angle pick-up unit detects the angle signal of each pendulum; The conveying belt speed detector is measured conveying belt speed; Signal processing apparatus obtains the shape of material on the conveying belt and conveying belt speed according to the angle signal of each pendulum and handles together and obtain conveying belt mass flow and output.Measure the device of conveying belt mass flow, can the perception conveying belt on the shape of material, add the conveying belt speed of measurement, what obtain is volumetric flow rate.
The positive advantage of the device of measurement conveying belt mass flow disclosed in the utility model is:
(1) this device is made simple, with low cost;
(2) this device is simple to operate, and maintenance cost is also lower;
(3) effect of this device warning is comparatively obvious, i.e. reaction is very fast, and its reliability is better simultaneously;
(4) this device does not all have to pollute safety and environmental protection to human body and environment;
(5) this device can be applied to chemical industry, metallurgy, coal, electric power, the situation that fields such as agricultural, especially environmental baseline are poor.
[description of drawings]
Fig. 1 is for measuring conveying belt mass flow device synoptic diagram;
Fig. 2 is a conveying belt mass flow measurement mechanism principle of work synoptic diagram.
Label in the accompanying drawing is respectively: 1 protection stationary installation, 2 signal output apparatus, 3 pendulum angle pick-up units, 4 devices (a plurality of) that freely swing, 5 conveying belt speed detectors, 6 material cut-off of conveyer belt devices, 7 materials, 8 conveying belt.
[embodiment]
The embodiment of measuring device of blank pile height of the present invention below is provided, 1 embodiment is provided, but the embodiment that provided is provided.
Referring to attached Fig. 1 and 2.This device 6 is made up of protection stationary installation 1, signal output apparatus 2, pendulum angle pick-up unit 3, freely swing device 4 (a plurality of) and conveying belt speed detector 5.The quantity of the device that freely swings is chosen in requirement according to measuring accuracy, and present embodiment adopts 24 pendulum; 24 free pendulums are arranged in a row, and make the swaying direction of pendulum consistent with the Flow of Goods and Materials direction.At the fixing magnet steel in the upper end of pendulum; The pendulum angle pick-up unit adopts the electromagnetic point sensor; Signal output apparatus 2 adopts high-performance embedded computing machine, gathers 24 road pendulum angle signals, and handles out material shapes on the conveying belt; Adopt Hall-type speed speed probe simultaneously, measure the rotating speed of the drive balls of conveying belt 8, add the diameter of drive balls, calculate the travelling speed of conveying belt 8 by signal output apparatus 2 in the lump; Obtain the volumetric flow rate of material 7 on the conveying belt 8 by computing.When not having material on the conveying belt, each pendulum all is in free hang, as shown in Figure 1.When material thickness on the conveying belt increased, each pendulum was subjected to the material collision and independently raises, and departs from free hang.Because material shapes difference on the conveying belt, through measurement point the time, the angle that each pendulum is lifted is also different.Pendulum angle pick-up unit 3 detects the angle signal of each pendulum; The conveying belt speed detector is measured conveying belt speed; Signal output apparatus 2 obtains the shape of material on the conveying belt and conveying belt speed according to the angle signal of each pendulum and handles together and obtain conveying belt mass flow and output.
Claims (4)
1. a device of measuring the conveying belt mass flow is characterized in that, contains protection stationary installation, a plurality of freely swing device and corresponding pendulum angle pick-up unit, conveying belt speed detector and signal output apparatus; The protection stationary installation is used to install pendulous device, pendulum angle pick-up unit and signal output apparatus, pendulous device comprises axle and pendulum, axle is fixed on the protection stationary installation, pendulum can be swung certain angle around axle, the angular dimension of each pendulum swing changes with the variation in thickness of material on the conveying belt, at those pendulum of centre with regard to the material thickness in the middle of the corresponding conveying belt, and the just corresponding material thickness of carrying on the band edge of the pendulum on both sides, signal output apparatus obtains mass flow and output according to the solid accumulation shape signal that the angular rate signal of each pendulous device obtains.
2. a kind of device of measuring the conveying belt mass flow according to claim 1 is characterized in that, the upper end of described pendulum is according to the requirement of pendulum angle pick-up unit, is selected from a kind of in metal or the magnet.
3. a kind of device of measuring the conveying belt mass flow according to claim 1, it is characterized in that described pendulum angle pick-up unit is a kind of in can the device of perception pendulous device pendulum angle such as Hall element, displacement transducer, angular transducer.
4. a kind of device of measuring the conveying belt mass flow according to claim 1 is characterized in that, described signal output apparatus is a kind of or combination during switching value output, analog quantity output, digital communication output or numeral show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990199U CN201188010Y (en) | 2007-12-07 | 2007-12-07 | Apparatus for measuring conveying belt material flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990199U CN201188010Y (en) | 2007-12-07 | 2007-12-07 | Apparatus for measuring conveying belt material flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188010Y true CN201188010Y (en) | 2009-01-28 |
Family
ID=40311035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201990199U Expired - Lifetime CN201188010Y (en) | 2007-12-07 | 2007-12-07 | Apparatus for measuring conveying belt material flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188010Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354897A (en) * | 2014-10-22 | 2015-02-18 | 浙江中烟工业有限责任公司 | Cigarette material level detection device of cigarette packing machine |
-
2007
- 2007-12-07 CN CNU2007201990199U patent/CN201188010Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104354897A (en) * | 2014-10-22 | 2015-02-18 | 浙江中烟工业有限责任公司 | Cigarette material level detection device of cigarette packing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202421198U (en) | Novel belt speed detection and alarm device | |
| CN101450750A (en) | Alarming device for material cut-off of conveyer belt | |
| CN103048071B (en) | Device and method for monitoring dynamic torque of frameless torque motor in suspension state | |
| CN101413779A (en) | Linear displacement detection method | |
| CN103335680A (en) | Flow measurement method and system of solid material conveying | |
| CN206032521U (en) | Band conveyer material flows detecting system | |
| CN201188010Y (en) | Apparatus for measuring conveying belt material flow | |
| JP5043675B2 (en) | Mass flow measuring device | |
| CN203324225U (en) | Metal magnetic memory detector | |
| CN205301355U (en) | Current meter retrogressive slide elevating system | |
| US20060191154A1 (en) | Method for measuring the thickness and/or length of objects and devices for this purpose | |
| CN207036232U (en) | One kind digitlization dynamic electron Gravimetric Coal Feeders metering system | |
| CN202582520U (en) | Meter counting device special for steel strands and coated wires | |
| CN106395297A (en) | Automatic material flow detection system for belt conveyor | |
| AU2012100136A4 (en) | Conveyor belt weighing system with embedded tachometer | |
| CN201382767Y (en) | Displacement sensor for weighing segment of belt | |
| CN203409597U (en) | Dynamic wrap angle detection device for metal saw belt transmission process of sawing machine | |
| CN202582661U (en) | Tracking level gauge | |
| CN202255577U (en) | Electronic belt scale with belt temperature detection mechanism | |
| CN204128651U (en) | Belt conveyer scale | |
| CN207675781U (en) | A kind of coal sample detection line is crushed tachometer and crusher | |
| CN106483324A (en) | Flow rate measuring device | |
| CN206362429U (en) | A kind of fully-automatic intelligent digital electronic belt weigher device | |
| CN201464091U (en) | Acting force measuring device for exercise equipment | |
| CN201218770Y (en) | Real-time monitoring device for rotation axis deflection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090128 |
|
| CX01 | Expiry of patent term |