CN219532823U - Repose angle measuring device - Google Patents

Abstract

The embodiment of the disclosure provides a repose angle measuring device, which comprises a base, a support frame, a blanking hopper, a blanking disc and an angle measuring assembly; the support frame is arranged on the base; the blanking hopper is erected at the top of the supporting frame, and the bottom of the blanking hopper is provided with a blanking port; the angle measuring component is arranged on the supporting frame; the blanking disc set up in the base, wherein, be provided with the bolster on the blanking disc, the central line of bolster and the central line collineation of blanking mouth. Through set up the bolster on the blanking dish to the central line of bolster and blanking mouth's central line collineation can avoid just starting the test time a small amount of material contact blanking dish spill like this, makes measuring result more accurate.

Description

Repose angle measuring device

Technical Field

The embodiment of the disclosure belongs to the technical field of measuring tools, and particularly relates to a repose angle measuring device.

Background

The angle of repose is an important property of solid particles and is commonly used in everyday designs. When the natural repose angle is measured, the included angle between the cone bus and the horizontal plane of the natural repose angle of the particle materials is measured, in order to ensure the measurement effect of the natural repose angle of the particle materials, dry particle materials sometimes slowly flow down from a funnel, after the particle materials form a cone, the diameter of the cone accumulation of the particle materials is measured by a ruler, the accumulation radius R is calculated, the height H of the cone accumulation is measured, and then the included angle theta is obtained by an inverse tangent function, namely the natural repose angle of the particle materials, but the measured radius and the height often have certain errors, so that the accuracy of a test result is influenced, meanwhile, the method is complicated, the parameters to be measured cannot be directly obtained, and the measurement time is prolonged. In addition, when the test is just started, a small amount of materials can directly contact the material tray and splash, so that the accuracy of a measurement result is affected.

In order to solve the above-mentioned problems, it is necessary to provide a repose angle measuring device which has a reasonable design and can effectively improve the above-mentioned problems.

Disclosure of Invention

The embodiment of the disclosure aims to at least solve one of the technical problems existing in the prior art and provides a repose angle measuring device.

The embodiment of the disclosure provides a repose angle measuring device, which comprises a base, a support frame, a blanking hopper, a blanking disc and an angle measuring assembly;

the supporting frame is arranged on the base;

the blanking hopper is arranged at the top of the supporting frame, and a blanking port is formed in the bottom of the blanking hopper;

the angle measuring assembly is arranged on the supporting frame;

the blanking disc is arranged on the base, wherein a buffer piece is arranged on the blanking disc, and the central line of the buffer piece is collinear with the central line of the blanking port.

Optionally, the orthographic projection of the buffer piece on the blanking port falls on the outer side of the blanking port.

Optionally, a groove is formed in the blanking disc, and the buffer piece is arranged in the groove.

Optionally, the material of the buffer member adopts flexible foam.

Optionally, the angle measurement component comprises a protractor, a protractor fixing seat and a laser transmitter;

the protractor is arranged on the protractor fixing seat;

the protractor fixing seat is arranged on the supporting frame;

the first end of the laser transmitter is rotationally arranged at the center of an angle measurement area of the protractor, and the second end of the laser transmitter is slidingly arranged at the angle measurement area; wherein,,

the second end of the laser transmitter may emit a laser beam.

Optionally, the angle measurement assembly further comprises a vertical driving mechanism;

the first end of the vertical driving mechanism is connected with the protractor, and the second end of the vertical driving mechanism is connected with the protractor fixing seat;

and the vertical driving mechanism is used for driving the protractor to lift.

Optionally, the angle measurement assembly further comprises a limiting rod, and the protractor is provided with a limiting notch along the angle measurement area;

the second end of the laser transmitter is slidably arranged in the limit notch through the limit rod.

Optionally, the limiting rod is a fixing bolt.

Optionally, the angle measurement assembly further comprises a fixing member;

the first end of the laser transmitter is rotatably arranged at the center of the angle measuring area through the fixing piece.

Optionally, the measuring device further comprises a valve, and the valve is arranged at the blanking port.

The embodiment of the disclosure provides a repose angle measuring device, which comprises a base, a support frame, a blanking hopper, a blanking disc and an angle measuring assembly; the support frame is arranged on the base; the blanking hopper is erected at the top of the supporting frame, and the bottom of the blanking hopper is provided with a blanking port; the angle measuring component is arranged on the supporting frame; the blanking disc is arranged on the base, wherein a buffer piece is arranged on the blanking disc, and the central line of the buffer piece is collinear with the central line of the blanking port. Through set up the bolster on the blanking dish to the central line of bolster and blanking mouth's central line collineation can avoid just starting the test time a small amount of material contact blanking dish spill like this, makes measuring result more accurate.

Drawings

FIG. 1 is a schematic view of a device for measuring a repose angle according to an embodiment of the disclosure;

FIG. 2 is a schematic structural view of a blanking plate and a buffer member according to another embodiment of the present disclosure;

fig. 3 is a schematic structural view of an angle measurement assembly according to another embodiment of the present disclosure.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are described in further detail below with reference to the accompanying drawings and detailed description.

As shown in fig. 1, an embodiment of the present disclosure provides a repose angle measurement device 100, the device 100 comprising a base 110, a support frame 120, a hopper 130, a pan 140, and an angle measurement assembly 150.

The supporting frame 120 is disposed on the base 110.

The blanking hopper 130 is erected at the top of the supporting frame 120, and the bottom of the blanking hopper 130 is provided with a blanking port 131. The material in the blanking hopper 130 can fall through the blanking port 131 onto the blanking tray 140.

The angle measuring assembly 150 is disposed on the supporting frame 120, and can directly measure the angle of repose of the material on the blanking tray 140.

The blanking tray 140 is disposed on the base 110, and is used for stacking the materials falling from the blanking opening 131. Wherein, the blanking plate 140 is provided with a buffer member 160, and the center line of the buffer member 160 is collinear with the center line of the blanking port 131.

During measurement, the blanking disc 140 is cleaned, the blanking port 131 is closed, a certain amount of material particles to be measured are poured into the blanking hopper 130, and then the blanking port 131 is opened to allow the material particles to naturally fall into the blanking disc 140 for spreading. The buffer 160 on the blanking disc 140 can buffer a small amount of material from contacting the material particles on the blanking disc 140 when the test is started, so that the material is prevented from splashing out, and the measurement result is more accurate. After the particles of the material fall into the blanking tray 140, the angle of repose of the material on the blanking tray 140 can be directly measured by the angle measuring assembly 150.

The embodiment of the disclosure provides a repose angle measuring device, which comprises a base, a support frame, a blanking hopper, a blanking disc and an angle measuring assembly; the support frame is arranged on the base; the blanking hopper is erected at the top of the supporting frame, and the bottom of the blanking hopper is provided with a blanking port; the angle measuring component is arranged on the supporting frame; the blanking disc is arranged on the base, wherein a buffer piece is arranged on the blanking disc, and the central line of the buffer piece is collinear with the central line of the blanking port. Through set up the bolster on the blanking dish to the central line of bolster and blanking mouth's central line collineation can avoid just starting the test time a small amount of material contact blanking dish spill like this, makes measuring result more accurate.

Illustratively, as shown in fig. 1 and 2, the orthographic projection of the buffer 160 on the blanking port 131 falls outside the blanking port 131. That is, the size of the buffer 160 is larger than the size of the blanking opening 131, so that a small amount of material contacting the blanking tray 140 at the beginning of the test can be buffered, and the material is prevented from splashing out, so that the test result is more correct.

It should be noted that, the shape of the buffer member 160 matches the shape of the blanking port 131, for example, the shape of the blanking port 131 is circular, the shape of the buffer member 160 is also circular, and the size of the buffer member 160 is slightly larger than the size of the blanking port 131.

Illustratively, as shown in fig. 2, the blanking plate 140 is provided with a recess 141, and a buffer 160 is disposed in the recess 141. The material of the buffer member 160 may be flexible foam, or may be other flexible materials that play a role in buffering, and may be selected according to actual needs, which is not specifically limited in this embodiment.

Illustratively, as shown in FIG. 3, the angle measurement assembly 150 includes a protractor 151, a protractor mount 152, and a laser transmitter 153.

The protractor 151 is disposed in the protractor mount 152. In this embodiment, the shape of the protractor 151 may be semicircular.

The protractor mount 152 is disposed on the supporting frame 120. As shown in fig. 3, the protractor fixing base 152 is disposed on the supporting rod of the supporting frame 120.

The first end of the laser transmitter 153 is rotatably disposed at the center of the angle measurement zone of the protractor 151. Specifically, the position of the center line of the first end of the laser transmitter 153 is rotatably set at the center of the angle measuring area of the protractor 151. That is, the first end of the laser transmitter 153 may rotate about the center of the angle measurement zone. The second end of the laser transmitter 153 is slidably disposed in the angle measurement region, that is, the second end of the laser transmitter 153 is slidable along the angle measurement region.

A second end of the laser transmitter 153 may emit a laser beam by which the angle of repose θ of the material is measured directly. Specifically, the angle read by the protractor 151 is the angle of repose by adjusting the laser beam emitted from the second end of the laser emitter 153 to be tangential to the upper edge of the central vertical slice of the stack of materials on the blanking plate 140. That is, the angle indicated by the centerline of the laser transmitter 153 is the repose angle θ of the material.

In the repose angle measuring device in the embodiment of the disclosure, the repose angle theta is obtained by measuring the material stacking radius R, measuring the material cone stacking height H and then calculating the repose angle theta through an inverse tangent function. But through angle measurement subassembly 150 can directly measure the repose angle θ of material, and the test result is more accurate, and this kind of method is simpler simultaneously, can directly obtain the parameter of needs survey, has practiced thrift the survey time.

Illustratively, the angle measurement assembly 150 further includes a vertical drive mechanism (not shown). The first end of the vertical driving mechanism is connected with the protractor 151, and the second end of the vertical driving mechanism is connected with the protractor fixing seat 152. The vertical driving mechanism is used for driving the protractor 151 to lift and lower. That is, the vertical driving mechanism may drive the protractor 151 to be adjusted up and down on the protractor holder 152 according to the actual situation, depending on the height of the material accumulation.

In this embodiment, the vertical driving mechanism may be a sliding rail and sliding block structure, for example, a sliding rail is disposed on the protractor fixing seat 152, and a sliding block is fixed on the protractor 151, and slides up and down along the sliding rail, so as to adjust the height of the protractor 151. Of course, the vertical driving mechanism can be of other structures, and can be selected according to actual needs.

Illustratively, as shown in FIG. 3, the angle measurement assembly 150 further includes a stop lever 154, and the protractor 151 is provided with a stop notch 155 along the angle measurement region. As shown in fig. 3, the angle measurement area of the protractor 151 is arcuate, and the limit notch 155 is also arcuate and disposed across the angle measurement area.

The second end of the laser transmitter 153 is slidably disposed in the limit slot 155 by a limit lever 154. The first end of the laser transmitter 153 is rotatably disposed at the center of the angle measurement area, and the second end of the laser transmitter 153 can adjust the angle of the second end of the laser transmitter 153 according to the stacking height of the material. When the laser beam of the laser transmitter 153 is adjusted to be tangential to the upper edge of the central vertical slice of the stack of materials on the blanking plate 140, the angle at which the center line of the second end of the laser transmitter 153 is located is then read out on the protractor 151 as the angle of repose θ.

For example, in the present embodiment, the limiting rod 154 may be a fixing bolt, and may be other limiting members.

Illustratively, the angle measurement assembly 150 further includes a fixture (not shown). The first end of the laser transmitter 153 is rotatably disposed at the center of the angle measurement zone by a fixing member. The fixing member may be a fixing bolt or the like, or may be another fixing member, and the embodiment is not particularly limited.

Specifically, when the laser beam emitted by the laser emitter is adjusted to be tangential to the upper edge of the central vertical slice of the stack of materials on the blanking plate 140, the angle at which the center line of the second end of the laser emitter 153 is located is then read out on the protractor 151 as the repose angle θ. Of course, the laser transmitter 153 may be other devices that can emit a visible light beam, and the embodiment is not limited in particular.

Illustratively, as shown in FIG. 1, the measuring apparatus 100 further includes a valve 170, and the valve 170 is disposed at the blanking port 131. In this embodiment, the valve 170 is a rubber valve, when blanking is needed, the valve 170 is opened, the blanking port 131 is opened, and the material falls out from the blanking port 131; when blanking is not needed, the valve 170 is closed, and the blanking port 131 is closed.

It is to be understood that the above implementations are merely exemplary implementations employed to illustrate the principles of the disclosed embodiments, which are not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the embodiments of the disclosure, and these modifications and improvements are also considered to be within the scope of the embodiments of the disclosure.

Claims (10)

1. The device is characterized by comprising a base, a support frame, a blanking hopper, a blanking disc and an angle measuring assembly;

the supporting frame is arranged on the base;

the blanking hopper is arranged at the top of the supporting frame, and a blanking port is formed in the bottom of the blanking hopper;

the angle measuring assembly is arranged on the supporting frame;

the blanking disc is arranged on the base, wherein a buffer piece is arranged on the blanking disc, and the central line of the buffer piece is collinear with the central line of the blanking port.

2. The device according to claim 1, characterized in that the orthographic projection of the buffer member on the blanking port falls outside the blanking port.

3. The device according to claim 2, characterized in that the blanking plate is provided with a recess in which the buffer is arranged.

4. A device according to any one of claims 1 to 3, wherein the material of the cushioning member is flexible foam.

5. A device according to any one of claims 1 to 3, wherein the angle measurement assembly comprises a protractor, a protractor mount and a laser transmitter;

the protractor is arranged on the protractor fixing seat;

the protractor fixing seat is arranged on the supporting frame;

the first end of the laser transmitter is rotationally arranged at the center of an angle measurement area of the protractor, and the second end of the laser transmitter is slidingly arranged at the angle measurement area; wherein,,

the second end of the laser transmitter may emit a laser beam.

6. The apparatus of claim 5, wherein the angle measurement assembly further comprises a vertical drive mechanism;

the first end of the vertical driving mechanism is connected with the protractor, and the second end of the vertical driving mechanism is connected with the protractor fixing seat;

and the vertical driving mechanism is used for driving the protractor to lift.

7. The device of claim 5, wherein the angle measurement assembly further comprises a stop bar, the protractor being provided with a stop notch along the angle measurement zone;

the second end of the laser transmitter is slidably arranged in the limit notch through the limit rod.

8. The device of claim 7, wherein the stop bar is a fixing bolt.

9. The apparatus of claim 5, wherein the angle measurement assembly further comprises a fixture;

the first end of the laser transmitter is rotatably arranged at the center of the angle measuring area through the fixing piece.

10. A device according to any one of claims 1 to 3, further comprising a valve arranged to the blanking port.