CN210456346U - Belt conveyor coal flow metering device - Google Patents
Belt conveyor coal flow metering device Download PDFInfo
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- CN210456346U CN210456346U CN201920299930.XU CN201920299930U CN210456346U CN 210456346 U CN210456346 U CN 210456346U CN 201920299930 U CN201920299930 U CN 201920299930U CN 210456346 U CN210456346 U CN 210456346U
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Abstract
In order to solve the technical problem who exists among the prior art, for example the electronic belt conveyor scale requires highly to the installation environment, and maintains loaded down with trivial details, needs frequent calibration for belt conveyor coal flow measurement accuracy can't obtain guaranteeing the scheduling problem, the utility model provides a metering device of belt conveyor coal flow. The utility model provides a metering device of belt feeder coal flow has fine commonality, and applicable in the measurement of all coal mine belt feeder transport coal flow, gives the host computer with this metering device's signal transmission, measures, and the device simple to operate, can realize continuous measurement.
Description
Technical Field
The utility model belongs to the technical field of the material measurement of coal mine transportation belt feeder, especially, relate to a metering device of belt feeder coal flow.
Background
At present, a coal quantity metering device of a coal mine belt conveyor is mainly a belt scale weighing and metering device. Because the accuracy of the belt weigher is not high, the weighing precision factors are influenced, the maintenance in the using process is complex, and the belt weigher does not meet the coal quantity metering requirement of a coal mine underground coal conveying belt conveyor. Other coal quantity metering devices are not mature in the experimental research stage, and a feasible belt conveyor coal quantity metering device with higher metering precision and convenient maintenance is needed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem who exists among the prior art, for example the electronic belt conveyor scale requires highly to the installation environment, and maintains loaded down with trivial details, needs frequent calibration for belt conveyor coal flow measurement accuracy can't obtain guaranteeing the scheduling problem, the utility model provides a metering device of belt conveyor coal flow.
The utility model provides a metering device of belt feeder coal flow has fine commonality, and applicable in the measurement of all coal mine belt feeder transport coal flow, gives the host computer with this metering device's signal transmission, measures, and the device simple to operate, can realize continuous measurement.
A belt conveyor coal flow metering device mainly comprises an upright post, a base, a bearing seat, a bearing, a cross shaft, a detecting rod, a connecting plate and an angular displacement measuring module; the upright columns comprise a left upright column and a right upright column, the left upright column and the right upright column are symmetrically arranged relative to the belt, the left upright column and the right upright column are respectively fixed at two sides of the belt through the base, the top parts of the left upright column and the right upright column are respectively provided with a bearing seat, and a bearing is arranged in each bearing seat;
the two ends of the cross shaft are supported by bearings at the tops of the left and right stand columns, an angular displacement measuring module is arranged at one end of the cross shaft, a detection rod is fixedly connected to the middle of the cross shaft through a connecting plate, and the initial position of the detection rod is vertical to the plane of the belt;
the cross shaft can rotate along with the swing of the detection rod, the angular displacement measuring module at the end part of the cross shaft can rotate by the same angle along with the rotation of the cross shaft, and the angular displacement measuring module can simultaneously measure the rotation angle value.
Further, the base passes through the angle bar and welds in the stand bottom, and the base passes through the bolt fastening in bottom plate. The base and the stand provide stable bases for the metering device, and the bases on two sides are ensured to be in the same horizontal plane, and the plane where the stand columns on two sides are located is ensured to be vertical to the conveying direction of the belt.
Further, the connecting plate includes the upper and lower connecting plate of inclusion cross axle, and upper and lower connecting plate passes through bolt and cross axle fixed connection, and lower connecting plate downside can be dismantled and be connected with the probe rod, and the projection of probe rod at the belt is located the belt on-line. The connecting plate passes through the bolt with the cross axle and can dismantle the connection to the horizontal pole that the device chooseed for use suitable length is applicable to the coal flow measurement on the belt feeder of different specifications. The detection rod and the connecting plate can be detachably connected so as to be convenient for replacing the detection rods with different lengths and is suitable for measuring coal flow with different transport volumes.
Furthermore, the device also comprises an upper computer connected with the angular displacement measurement module, wherein the angular displacement measurement module comprises a magnetic sensing element, a signal amplification circuit and a signal filter circuit, the angular displacement measurement module outputs a voltage signal to the upper computer, and the upper computer calculates the swing inclination angle of the detection rod through the voltage signal.
Furthermore, the detection rod is vertically connected with the transverse shaft, and the end part of the detection rod is one centimeter away from the surface of the belt. When the height of the coal pile under the detection rod is more than a common amount, the coal pile is jacked up for a certain angle, and when the thickness of the coal pile is less than a common amount, the coal quantity on the surface of the belt is ignored by the device.
The utility model discloses a device utilizes magnetic sensor's hall effect to measure the height of the inclination determination belt feeder coal level of coal level gauge stick to measure the belt feeder coal volume. The utility model discloses a device measuring error is little, and it is convenient to install, maintains simply, can realize the belt feeder coal measure.
Drawings
FIG. 1 is a schematic structural view of a belt conveyor coal flow rate metering device of the present invention;
FIG. 2 is a Hall effect diagram of a belt conveyor coal flow rate metering device of the present invention;
fig. 3 is a schematic diagram of a measuring device for measuring the coal flow of a belt conveyor.
In the figure, 1, a column; 2. a base; 3. a bearing seat; 4. a bearing; 5. a horizontal axis; 6. a probe rod; 7. a connecting plate; 8. an angular displacement measurement module.
Detailed Description
In order to make the technical solution of the present invention better understood, the present invention is further described in detail with reference to the specific drawings and specific embodiments.
As shown in figures 1-3, the utility model provides a belt feeder coal flow's metering device has fine commonality, and applicable in the measurement of all coal mine belt feeder transportation coal flow, gives the host computer with this metering device's signal transmission, measures, and the device simple to operate, can realize continuous measurement.
A belt conveyor coal flow metering device mainly comprises an upright post 1, a base 2, a bearing seat 3, a bearing 4, a transverse shaft 5, a detection rod 6, a connecting plate 7 and an angular displacement measuring module 8; the upright column 1 comprises a left upright column and a right upright column, the left upright column and the right upright column are symmetrically arranged relative to the belt, the left upright column and the right upright column are respectively fixed at two sides of the belt through a base 2, the top parts of the left upright column and the right upright column are respectively provided with a bearing seat 3, and a bearing 4 is arranged in the bearing seat 3;
two ends of a transverse shaft 5 are supported by bearings 4 at the tops of left and right stand columns, an angular displacement measuring module 8 is arranged at one end of the transverse shaft 5, the middle part of the transverse shaft 5 is fixedly connected with a detection rod 6 through a connecting plate 7, and the initial position of the detection rod 6 is vertical to the plane of the belt;
the cross shaft 5 can rotate along with the swing of the detection rod 6, the angular displacement measuring module 8 at the end part of the cross shaft 5 can rotate by the same angle along with the rotation of the cross shaft 5, and the angular displacement measuring module 8 can simultaneously measure the rotation angle value.
Base 2 welds in 1 bottom of stand through the angle bar, and base 2 is fixed in the bottom plate through the bolt fastening. The base and the stand provide stable bases for the metering device, and the bases on two sides are ensured to be in the same horizontal plane, and the plane where the stand columns on two sides are located is ensured to be vertical to the conveying direction of the belt.
Connecting plate 7 is including the upper and lower connecting plate of inclusion cross axle 5, and upper and lower connecting plate passes through bolt and 5 fixed connection of cross axle, and lower connecting plate downside can be dismantled and be connected with detection pole 6, and detection pole 6 is located the belt on the line in the projection of belt. The connecting plate passes through the bolt with the cross axle and can dismantle the connection to the horizontal pole that the device chooseed for use suitable length is applicable to the coal flow measurement on the belt feeder of different specifications. The detection rod and the connecting plate can be detachably connected so as to be convenient for replacing the detection rods with different lengths and is suitable for measuring coal flow with different transport volumes.
The device is characterized by further comprising an upper computer connected with the angular displacement measuring module 8, wherein the angular displacement measuring module 8 comprises a magnetic sensitive element, a signal amplifying circuit and a signal filtering circuit, the angular displacement measuring module 8 outputs a voltage signal to the upper computer, and the upper computer calculates the swing inclination angle of the detecting rod 6 through the voltage signal.
The detection rod 6 is vertically connected with the transverse shaft 5, and the end part of the detection rod 6 is one centimeter away from the surface of the belt. When the height of the coal pile under the detection rod is more than a common amount, the coal pile is jacked up for a certain angle, and when the thickness of the coal pile is less than a common amount, the coal quantity on the surface of the belt is ignored by the device.
The utility model discloses a concrete metering method of metering device of belt feeder coal flow as follows: when the coal pile carried by the belt reaches a certain height, the coal pile jacks up the detection rod 6 by a certain angle, the detection rod 6 drives the angular displacement measurement module 8 to rotate by the same angle through the rotatable cross shaft 5, the detection rod 6 drives the magnetic field direction of the angular displacement measurement module 8 to rotate, the change of the magnetic field direction leads to the change of the Hall potential of the magnetic sensitive element, the rotation angle of the detection rod 6 is calculated through measuring the change of the Hall potential of the magnetic sensitive element, then the coal level height on the belt conveyor is calculated, and the coal quantity metering is realized.
The method for calculating the rotation angle of the detection rod 6 comprises the following steps: when the current and the magnetic field intensity passing through the magnetic sensing element in the angular displacement measuring module 8 are constant and the magnetic field is perpendicular to the surface of the magnetic sensing element, a Hall potential U is generated in the direction perpendicular to the current and the magnetic fieldHNamely:
UH＝KHIB
KH-hall element sensitivity;
i-current through the magneto-sensitive element;
b-magnetic field intensity;
when the magnetic field direction is fixed, the normal direction of the magnetic sensing element changes along with the angle change of the detection rod 6, and the Hall potential of the magnetic sensing element is measured at the same time, then:
UH＝KHIB cos θ
theta is an included angle between the magnetic field and the normal direction of the element plane, namely an included angle between the detection rod 6 and the normal direction of the belt;
the height of the coal level of the belt conveyor is converted according to the change of the Hall potential, the initial position of the detection rod 6 is the same as the normal direction of the belt, the length of the detection rod 6 is L, the distance from the detection rod to the surface of the belt is a, when the detection rod is jacked up by a coal pile on the belt, the included angle between the detection rod and the normal direction of the belt is theta, and the height of the coal pile is as follows:
h＝a-L cosθ
and calculating the height of the coal pile on the belt according to the formula, taking the average value of the height of the coal pile in unit time, and calibrating the coal amount corresponding to the height of the coal pile by taking a standard coal pile weighing device as a standard to realize the measurement of the coal flow.
The utility model discloses a device utilizes magnetic sensor's hall effect to measure the height of the inclination determination belt feeder coal level of coal level gauge stick to measure the belt feeder coal volume. The utility model discloses a device measuring error is little, and it is convenient to install, maintains simply, can realize the belt feeder coal measure.
Claims (5)
1. A belt conveyor coal flow metering device is characterized by mainly comprising an upright post, a base, a bearing seat, a bearing, a transverse shaft, a detection rod, a connecting plate and an angular displacement measuring module; the upright columns comprise a left upright column and a right upright column, the left upright column and the right upright column are symmetrically arranged relative to the belt, the left upright column and the right upright column are respectively fixed at two sides of the belt through the base, the top parts of the left upright column and the right upright column are respectively provided with a bearing seat, and a bearing is arranged in each bearing seat;
the two ends of the cross shaft are supported by bearings at the tops of the left and right stand columns, an angular displacement measuring module is arranged at one end of the cross shaft, a detection rod is fixedly connected to the middle of the cross shaft through a connecting plate, and the initial position of the detection rod is vertical to the plane of the belt;
the cross shaft can rotate along with the swing of the detection rod, the angular displacement measuring module at the end part of the cross shaft can rotate by the same angle along with the rotation of the cross shaft, and the angular displacement measuring module can simultaneously measure the rotation angle value.
2. The belt conveyor coal flow metering device of claim 1, wherein the base is welded to the bottom of the upright post through angle iron, and the base is fixed to the bottom plate through bolts; the base and the stand provide stable bases for the metering device, and the bases on two sides are ensured to be in the same horizontal plane, and the plane where the stand columns on two sides are located is ensured to be vertical to the conveying direction of the belt.
3. The belt conveyor coal flow metering device according to claim 1, wherein the connecting plate comprises an upper connecting plate and a lower connecting plate which comprise a transverse shaft, the upper connecting plate and the lower connecting plate are fixedly connected with the transverse shaft through bolts, a detection rod is detachably connected to the lower side of the lower connecting plate, and the projection of the detection rod on the belt is positioned on the central line of the belt; the connecting plate is detachably connected with the cross shaft through a bolt, so that the device selects a cross rod with a proper length to be suitable for coal flow measurement on belt conveyors with different specifications; the detection rod and the connecting plate can be detachably connected so as to be convenient for replacing the detection rods with different lengths and is suitable for measuring coal flow with different transport volumes.
4. The coal flow metering device of the belt conveyor as claimed in claim 1, further comprising an upper computer connected with the angular displacement measuring module, wherein the angular displacement measuring module comprises a magnetic sensing element, a signal amplifying circuit and a signal filtering circuit, the angular displacement measuring module outputs a voltage signal to the upper computer, and the upper computer calculates the inclination angle of the swinging of the detection rod through the voltage signal.
5. The coal flow rate measuring device of claim 1, wherein the probe rod is perpendicularly connected to the transverse shaft, and the end of the probe rod is spaced a centimeter from the surface of the belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299930.XU CN210456346U (en) | 2019-03-11 | 2019-03-11 | Belt conveyor coal flow metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920299930.XU CN210456346U (en) | 2019-03-11 | 2019-03-11 | Belt conveyor coal flow metering device |
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| CN210456346U true CN210456346U (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823794A (en) * | 2019-03-11 | 2019-05-31 | 河北工程大学 | A kind of metering device and method of belt machine-made egg-shaped or honey-comb coal briquets flow |
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2019
- 2019-03-11 CN CN201920299930.XU patent/CN210456346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823794A (en) * | 2019-03-11 | 2019-05-31 | 河北工程大学 | A kind of metering device and method of belt machine-made egg-shaped or honey-comb coal briquets flow |
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