CN206515201U - A kind of test device of small size particle angle of friction - Google Patents
A kind of test device of small size particle angle of friction Download PDFInfo
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- CN206515201U CN206515201U CN201720161170.7U CN201720161170U CN206515201U CN 206515201 U CN206515201 U CN 206515201U CN 201720161170 U CN201720161170 U CN 201720161170U CN 206515201 U CN206515201 U CN 206515201U
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Abstract
The utility model is related to a kind of test device of small size particle angle of friction, including controller, tested plate, support, bottom plate, the first rotary shaft, attachment structure and the drive device being connected with controller, obliquity sensor, numerical value display module and image-capturing apparatus, tested plate is detachably arranged on bottom plate；First rotary shaft is on support, and the bottom of support is provided with rotary shaft, and one end of bottom plate is connected by rotary shaft with holder pivots, and the other end of bottom plate can be connected by attachment structure with the first rotary shaft, and drive device is used to drive the rotation of the first rotary shaft；Obliquity sensor is used for bottom and the angle of horizontal plane for measuring bottom plate on bottom plate, and numerical value display module is used for the numerical value for showing obliquity sensor, and image-capturing apparatus is used for the image for catching small size particle downslide situation on tested plate.A kind of test device of small size particle angle of friction of the utility model, it is simple in construction, easy to operate, the measured value of angle of friction can be directly obtained, and measurement accuracy is high.
Description
Technical field
The utility model is related to the physical property detection technique field of granule materials, more particularly, to a kind of small particle
The test device at particle friction angle.
Background technology
Angle of friction is to characterize one of important indicator of material particles frictional behavior and flow behavior, in Modern Agricultural Food life
In production, processing and subtractive process, friction law of the material with contacting surface is detected exactly, agricultural product can be effectively improved
Produce and process efficiency.Angle of friction is to influence angle of body feed tank stock guide inclination angle, the type hole of feed mechanism for seed or type groove present position etc.
Important parameter, be required in many related Machine Designs consider this factor.Therefore, material and different materials table are determined
The angle of friction in face is not only that the physical characteristic research of material is provided fundamental basis, and provides reliable to the design of crop machinery
Foundation, with very strong practical application meaning.
The method of testing of the friction law on detection material with contacting surface mainly has discharge method and injection method at present, but
Both approaches have that measurement accuracy is high, the inconvenient observation of data with.The device at some testing friction angles
Tensiometer and displacement transducer are introduced, and is connected with computer, but requirement of this device to particle is higher, the scope of application
Small, during with PC as data collection station, equipment cost is higher.Therefore, the test at present on angle of friction is mainly or logical
Cross inclined-plane instrument and carry out simple manual measurement, this test device does not have auto-lock function, and hand wobble easily draws after material particles downslide
Enter human error, and operator needs naked eyes to read measured value from dial scale, i.e., can not directly obtain measured value, cause test result
It is big with actual value error, and waste time and energy.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art that there is provided a kind of test of small size particle angle of friction
Device, it is simple in construction, easy to operate, the measured value of angle of friction can be directly obtained, and measurement accuracy is high.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of test device of small size particle angle of friction, including controller, tested plate, support, bottom plate, first are provided
Rotary shaft, drive device, attachment structure, obliquity sensor, numerical value display module and image-capturing apparatus, are tested plate detachable
Ground is on bottom plate, and drive device, obliquity sensor, numerical value display module and image-capturing apparatus are connected with controller；The
One rotary shaft is on support, and the bottom of support is provided with rotary shaft, and one end of bottom plate is connected by rotary shaft with holder pivots,
The other end of bottom plate can be connected by attachment structure with the first rotary shaft, and drive device is used to drive the rotation of the first rotary shaft；Incline
Angle transducer is used for bottom and the angle of horizontal plane for measuring bottom plate on bottom plate, and numerical value display module is used to show that inclination angle is passed
The numerical value of sensor, image-capturing apparatus is used for the image for catching small size particle downslide situation on tested plate.Drive device is
Motor；Image-capturing apparatus is fixed on support by fixing axle；Controller sets integral with numerical value display module；Connection knot
Structure is connecting line；Two sides of bottom plate are equipped with a side wall, prevent small size particle from being slipped down from the side of bottom plate.
In such scheme, after small size particle is placed on tested plate, controller drives first by drive device
One end that rotary shaft rotation makes bottom plate be connected with attachment structure is lifted up, and during bottom plate is lifted, obliquity sensor is surveyed in real time
Measure the bottom of bottom plate and the angle of horizontal plane and transmit to controller, the angle is transmitted to numerical value display module and shown by controller
Show, the image of image-capturing apparatus real-time capture small size particle downslide situation is simultaneously handled the image transmitting to controller
And judgement, when controller judges small size particle without all gliding, controller continues to control drive device to drive first turn
Moving axis rotates, and when controller judges that all small size particles start downslide, controller control drive device is stopped, and remembers
The angle value that numerical value display module shows angle is recorded, the angle value is the angle of friction of small size particle and tested plate.This reality
It is simple in construction, easy to operate with a kind of new test device of small size particle angle of friction, it can directly obtain the measurement of angle of friction
Value, and measurement accuracy is high.
Preferably, the test device also includes handle and the second rotary shaft being connected with handle, and the second rotary shaft is located at
On support, the other end of bottom plate can be connected by attachment structure with the second rotary shaft.Now, the other end of bottom plate not with first turn
Moving axis is connected.When drive device, which breaks down, to work, operator, which can rotate handle, makes the second rotary shaft rotate and band
One end that dynamic bottom plate is connected with attachment structure is lifted up, and during bottom plate is lifted, obliquity sensor measures the bottom of bottom plate in real time
The angle of portion and horizontal plane is simultaneously transmitted to controller, and the angle is transmitted to numerical value display module and shown by controller, operator
The angle of friction of small size particle and tested plate can be determined according to two kinds of situations：The first situation is that image-capturing apparatus is caught in real time
Catch the image of small size particle downslide situation and the image transmitting is handled and judged to controller, when controller judges institute
When some small size particles start to glide, controller sends signal, and operator stops operating handle, and now numerical value display module shows
The angle value for showing angle is the angle of friction of small size particle and tested plate；Second of situation is that operator visually observes and sentenced
Disconnected, stopped operating handle when operator thinks that all small size particles start downslide, and now numerical value display module is shown
The angle value of angle is the angle of friction of small size particle and tested plate.In this way, so that the device is sent out in drive device
During raw failure, operator still can measure the angle of friction of small size particle and tested plate, and operator can also be to this
The angle of friction that two kinds of situations are obtained is compared and judged, with the precision for the angle of friction for improving measurement.
Preferably, the test device also includes the self-locking device for fixed handle position.Handle is rotated manually to drive
When bottom plate is lifted up the angle of friction to measure small size particle and tested plate with one end that the second rotary shaft is connected, judging
All small size particles start after downslide, and the setting of self-locking device is allowed an operator to handle locking in time, prevents operation
The human error that person's hand wobble is introduced, and then reduce the angle of friction of measurement and the error of real angle of friction.
Preferably, the self-locking device includes dial and fixed block, and dial is on support and positioned at support and hand
Between handle, and the second rotary shaft passes through the center of dial；Dial is provided with some through holes, and fixed block is located at the second rotary shaft
On, and fixed block is provided with the projection matched with through hole.20 through holes are uniformly provided with dial., will when needing lock handle
Handle is pushed away to the direction close to support, in the through hole for making the raised insertion dial on fixed block, you can be fixed on handle and work as
Preceding position；When not needing lock handle, handle is drawn to the direction away from support, made raised from dial on fixed block
In through hole out.So set and be easy to fix the position of handle, the human error for preventing operator's hand wobble from introducing subtracts
The error of the angle of friction of small measurement and real angle of friction, and then improve the precision of the angle of friction of measurement.
Preferably, the test device also includes baffle plate；One end of baffle plate close rotary shaft on bottom plate, and baffle plate position
In the lower section of tested plate, baffle plate drops for blocking small size particle from tested plate.The setting of baffle plate can prevent small particle
Particle drops down a unrestrained ground from tested plate, is easy to operating personnel to collect to carry out the test of angle of friction next time,
Improve testing efficiency；And the setting of baffle plate can also detect that small size particle rotates on tested plate from horizontal level and rise
To bottom plate when all slipping down to bottom base plate and the angle of horizontal plane, detached with small size particle from the bottom plate of certain angle
Whether the angle all glided during baffle plate is consistent, to verify the accuracy of current angle of friction.
Second purpose of the present utility model is to provide a kind of test device of small size particle angle of friction, including control
Device, tested plate, support, bottom plate, handle, the second rotary shaft, attachment structure, obliquity sensor and numerical value display module；It is tested
Plate is detachably arranged on bottom plate, and obliquity sensor and numerical value display module are connected with controller；Second rotary shaft is located at
On support, handle is connected with the second rotary shaft, and the bottom of support is provided with rotary shaft, and one end of bottom plate is turned by rotary shaft and support
Dynamic connection, the other end of bottom plate can be connected by attachment structure with the second rotary shaft；Obliquity sensor is used to survey on bottom plate
The bottom of bottom plate and the angle of horizontal plane are measured, numerical value display module is used for the numerical value for showing obliquity sensor.
In such scheme, operator, which can rotate handle, to be rotated the second rotary shaft and drives what bottom plate was connected with attachment structure
One end is lifted up, during bottom plate is lifted, and obliquity sensor measures the bottom of bottom plate and the angle of horizontal plane and transmission in real time
To controller, the angle is transmitted to numerical value display module and shown by controller, and operator visually observes and judged, works as operator
Think that all small size particles start the handle that stopped operating during downslide, now numerical value display module shows the angle value of angle
It is the angle of friction of small size particle and tested plate.A kind of test device of small size particle angle of friction of the utility model, knot
Structure is simple and convenient to operate, and can directly obtain the measured value of angle of friction, and measurement accuracy is high.
Preferably, the test device also includes the image-capturing apparatus being connected with controller, and image-capturing apparatus is used for
Catch the image of small size particle downslide situation on tested plate.When measuring the angle of friction of small size particle and tested plate,
The image of image-capturing apparatus real-time capture small size particle downslide situation and by the image transmitting to controller carry out processing and
Judge, when controller judges that all small size particles start to glide, controller sends signal, operator stops operating hand
Handle, the angle value of now numerical value display module display angle is the angle of friction of small size particle and tested plate.In this way,
Allow an operator to send controller the angle of friction obtained when stopping operating handle signal, small particle is visually observed with operator
Actively stopped operating after particle downslide situation handle when the angle of friction that obtains be compared and judge, to improve the angle of friction of measurement
Precision.
Preferably, the test device also includes the self-locking device for fixed handle position；The self-locking device includes
Dial and fixed block, dial is on support and is located between support and handle, and the second rotary shaft passes through dial
Center；Dial is provided with some through holes, and fixed block is in the second rotary shaft, and fixed block is convex provided with what is matched with through hole
Rise.After judging that all small size particles start downslide, the setting of self-locking device is allowed an operator to handle locking in time,
The human error for preventing operator's hand wobble from introducing, and then reduce the angle of friction of measurement and the error of real angle of friction.
Compared with prior art, the beneficial effects of the utility model are：
A kind of test device of small size particle angle of friction of the utility model, during bottom plate is lifted, obliquity sensor
The bottom of bottom plate and the angle of horizontal plane are measured in real time and is transmitted to controller, and the angle is transmitted to numerical value and shows mould by controller
Block is simultaneously shown so that operator can directly obtain the measured value of angle of friction, and measurement accuracy is high, it is to avoid naked eyes are read from dial scale
The problem of taking test result and big actual value error caused by measured value；By setting self-locking device, handle band is rotated when manual
When dynamic bottom plate is lifted up the angle of friction to measure small size particle and tested plate with one end that the second rotary shaft is connected, sentencing
All small size particles that breaks start after downslide so that operator can prevent operator's hand wobble from introducing in time by handle locking
Human error, and then reduce the error of angle of friction and the real angle of friction of measurement；By setting baffle plate, it can not only prevent small
Particles drop down a unrestrained ground from tested plate, are easy to operating personnel to collect to carry out the survey of angle of friction next time
Examination, improves testing efficiency, but also can detect that small size particle rises to whole on tested plate from horizontal level rotation
The angle of bottom plate and horizontal plane when slipping down to bottom base plate, with small size particle from the bottom plate of certain angle when detaching baffle plate
Whether the angle all glided is consistent, to verify the accuracy of current angle of friction.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the test device of small size particle angle of friction of the utility model；
Fig. 2 is Fig. 1 medium-height trestles and dial and the connection diagram of drive device；
Fig. 3 is the connection diagram of handle and the second rotary shaft in Fig. 1；
Fig. 4 is the structural representation of bottom plate in Fig. 1；
Fig. 5 is the structural representation of dial in Fig. 1；
Fig. 6 is a kind of flow chart of the method for testing of small size particle angle of friction in embodiment 1；
Wherein, 1-support；2-bottom plate；3-handle；4-dial；5-drive device；6-obliquity sensor；7—
First rotary shaft；8-numerical value display module；9-image-capturing apparatus；10-baffle plate；20-attachment structure；30-rotary shaft；
31-fixed block；32-raised；40-the second rotary shaft；41-through hole；50-fixing axle.
Embodiment
The utility model is further described with reference to embodiment.Wherein, being given for example only property of accompanying drawing
Illustrate, expression is only schematic diagram, rather than pictorial diagram, it is impossible to be interpreted as the limitation to this patent；In order to which this reality is better described
With new embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the size of actual product；To ability
For field technique personnel, some known features and its explanation may be omitted and will be understood by accompanying drawing.
The same or analogous part of same or analogous label correspondence in the accompanying drawing of the utility model embodiment；In this practicality
In new description, it is to be understood that if the orientation or position relationship that have the instructions such as term " on ", " under ", "left", "right" are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicate
Or imply that signified device or element must have specific orientation, to be retouched in specific azimuth configuration and operation, therefore accompanying drawing
Term the being given for example only property explanation of position relationship is stated, it is impossible to be interpreted as the limitation to this patent, for the common skill of this area
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment 1
A kind of schematic diagram of the test device of small size particle angle of friction of the present embodiment as shown in Figures 1 to 5, including is controlled
Device, tested plate, support 1, bottom plate 2, the first rotary shaft 7, drive device 5, attachment structure 20, obliquity sensor 6, numerical value are shown
Module 8 and image-capturing apparatus 9, tested plate are detachably arranged on bottom plate 2, and drive device 5, obliquity sensor 6, numerical value show
Show that module 8 and image-capturing apparatus 9 are connected with controller；First rotary shaft 7 is on support 1, and the bottom of support 1 is provided with
Rotary shaft 30, one end of bottom plate 2 is rotated by rotary shaft 30 with support 1 to be connected, and the other end of bottom plate 2 can pass through attachment structure 20
It is connected with the first rotary shaft 7, drive device 5 is used to drive the first rotary shaft 7 to rotate；Obliquity sensor 6 is used on bottom plate 2
The bottom of bottom plate 2 and the angle of horizontal plane are measured, numerical value display module 8 is used for the numerical value for showing obliquity sensor 6, picture catching
Equipment 9 is used for the image for catching small size particle downslide situation on tested plate.Drive device 7 is motor；Image-capturing apparatus 9
It is fixed on by fixing axle 50 on support 1；Controller is set integrally with numerical value display module 8；Attachment structure 20 is connecting line；
Two sides of bottom plate 2 are equipped with a side wall, prevent the side of small size particle from bottom plate 2 from slipping down.
When testing the angle of friction of small size particle and tested plate using the test device, tested plate is fixed on bottom plate
On 2, small size particle is placed on tested plate, and bottom plate 2 is connected by attachment structure 20 with the first rotary shaft 7, is controlled
Device control drive device 5 processed works, and the work of drive device 5 drives the rotation of the first rotary shaft 7 bottom plate 2 is connected with attachment structure 20
One end be lifted up, during bottom plate 2 is lifted, obliquity sensor 6 in real time measurement bottom plate 2 bottom and horizontal plane angle simultaneously
Transmit to controller, the angle is transmitted to numerical value display module 8 and shown by controller, at the same time, image-capturing apparatus 9 is real
When catch small size particle downslide situation image and the image transmitting is handled and judged to controller, when controller is sentenced
When disconnected small size particle is without all gliding, controller continues to control drive device 5 to drive the first rotary shaft 7 to rotate, and works as control
When device judges that all small size particles start downslide, controller control drive device 5 is stopped, and records numerical value display module
The angle value of 8 display angles, the angle value is the angle of friction of small size particle and tested plate；Above-mentioned behaviour can repeatedly be carried out
Make, take the numerical value display module 8 repeatedly recorded to show the average value of the angle value of angle as small size particle and be tested
The angle of friction of plate.A kind of test device of small size particle angle of friction of the utility model, it is simple in construction, easy to operate, can be straight
The measured value for taking angle of friction is obtained, and measurement accuracy is high.
Wherein, the test device also includes handle 3 and the second rotary shaft 40 being connected with handle 3, the second rotary shaft 40
On support 1, the other end of bottom plate 2 can be connected by attachment structure 20 with the second rotary shaft 40.Now, bottom plate 2 is another
End is not connected with the first rotary shaft 7, but the other end of bottom plate 2 is connected by attachment structure 20 with the second rotary shaft 40.When
Drive device 5 is broken down when can not work, and operator, which can rotate handle 3, to be rotated the second rotary shaft 40 and drive bottom plate 2
The one end being connected with attachment structure 20 is lifted up, during bottom plate 2 is lifted, and obliquity sensor 6 measures the bottom of bottom plate 2 in real time
With the angle of horizontal plane and transmitting to controller, the angle is transmitted to numerical value display module 8 and shown by controller, operator's energy
The angle of friction of small size particle and tested plate is determined according to following two situation：The first situation is that image-capturing apparatus 9 is real
When catch small size particle downslide situation image and the image transmitting is handled and judged to controller, when controller is sentenced
When all small size particles that breaks start to glide, controller sends signal, and operator stops operating handle 3, and now numerical value is shown
Module 8 shows that the angle value of angle is the angle of friction of small size particle and tested plate；Second of situation is operator's naked eyes
Observe and judge, stop operating handle 3 when operator thinks that all small size particles start downslide, now numerical value is shown
Module 8 shows that the angle value of angle is the angle of friction of small size particle and tested plate.In this way, so that the device is driving
When dynamic device 5 breaks down, operator still can measure the angle of friction of small size particle and tested plate, and operator is also
The angle of friction that both of these case is obtained can be compared and be judged, with the precision for the angle of friction for improving measurement.
In addition, the test device also includes the self-locking device for the position of fixed handle 3.Handle 3 is rotated manually to drive
When bottom plate 2 is lifted up the angle of friction to measure small size particle and tested plate with one end that the second rotary shaft 40 is connected,
Judge that all small size particles start after downslide, the setting of self-locking device allows an operator in time lock handle 3, prevents
The human error that operator's hand wobble is introduced, and then reduce the angle of friction of measurement and the error of real angle of friction.
Wherein, the self-locking device includes dial 4 and fixed block 31, and dial 4 is on support 1 and positioned at support 1
Between handle 3, and the second rotary shaft 40 passes through the center of dial 4；Dial 4 is provided with some through holes 41, fixed block 31
In the second rotary shaft 40, and fixed block 31 is provided with the projection 32 matched with through hole 41.In the present embodiment, on dial 4
It is uniformly provided with 20 through holes 41.When needing lock handle 3, handle 3 is pushed away to the direction close to support 1, made on fixed block 31
Projection 32 is inserted in the through hole 41 of dial 4, you can handle 3 is fixed on to current position；, will when not needing lock handle 3
Handle 3 is drawn to the direction away from support 1, the projection 32 on fixed block 31 is come out out of dial 4 through hole 41.So
Setting is easy to the position by handle 3 to fix, the human error for preventing operator's hand wobble from introducing, reduce the angle of friction of measurement with it is true
The error of real angle of friction, and then improve the precision of the angle of friction of measurement.
In addition, the test device also includes baffle plate 10；One end of the close rotary shaft 30 on bottom plate 2 of baffle plate 10, and
Baffle plate 10 is located at the lower section of tested plate, and baffle plate 10 drops for blocking small size particle from tested plate.The setting of baffle plate 10
It can prevent small size particle from being dropped down a unrestrained ground from tested plate, be easy to operating personnel to collect to be rubbed next time
The test at angle is wiped, testing efficiency is improved；And the setting of baffle plate 10 can also detect small size particle on tested plate from water
Prosposition puts the angle that rotation rises to all bottom plate 2 and horizontal plane when slipping down to 2 bottom of bottom plate, with small size particle from certain angle
Whether the angle all glided on the bottom plate 2 of degree when detaching baffle plate 10 is consistent, to verify the accuracy of current angle of friction.
The present embodiment additionally provides a kind of method of testing of small size particle angle of friction, and the flow chart of the method for testing is as schemed
Shown in 6, the method for testing uses above-mentioned test device, comprises the following steps：
S1. by tested plate on bottom plate 2, and a certain amount of small size particle is placed on tested plate；
S2. controller is opened, makes drive device 5, obliquity sensor 6, numerical value display module 8 and image-capturing apparatus 9 equal
It is in running order；
S3. controller drives the first rotary shaft 7 to rotate bottom plate 2 is connected with attachment structure 20 one by drive device 5
End is lifted up, during bottom plate 2 is lifted, and the image of the real-time capture small size particle downslide situation of image-capturing apparatus 9 simultaneously will
The image transmitting to controller is handled, and obliquity sensor 6 measures the bottom of bottom plate 2 and angle and the transmission of horizontal plane in real time
To controller, the angle is transmitted to numerical value display module 8 and shown by controller；
S4. whether the image that controller is caught to image-capturing apparatus 9 judges all small size particles after handling
Start to glide；When small size particle is without all gliding, repeat step S3；When all small size particles start to glide, control
Device control drive device 5 processed is stopped, and record numerical value display module 8 shows the angle value of angle；
S5. step S3 and S4 is repeated several times, access value display module 8 shows that the average value of the angle value of angle is used as granule
The angle of friction of footpath particle and tested plate.
A kind of method of testing of small size particle angle of friction of the utility model, can directly obtain the measured value of angle of friction, and
Measurement accuracy is high.
Embodiment 2
A kind of schematic diagram of the test device of small size particle angle of friction of the present embodiment as shown in Figures 1 to 5, including is controlled
Device, tested plate, support 1, bottom plate 2, handle 3, the second rotary shaft 40, attachment structure 20, obliquity sensor 6 and numerical value show mould
Block 8；Tested plate is detachably arranged on bottom plate 2, and obliquity sensor 6 and numerical value display module 8 are connected with controller；Second
Rotary shaft 40 is on support 1, and handle 3 is connected with the second rotary shaft 40, and the bottom of support 1 is provided with rotary shaft 30, the one of bottom plate 2
End is rotated with support 1 by rotary shaft 30 and is connected, and the other end of bottom plate 2 can be connected by attachment structure 20 with the second rotary shaft 40
Connect；Obliquity sensor 6 is used for bottom and the angle of horizontal plane for measuring bottom plate 2 on bottom plate 2, and numerical value display module 8 is used for
Show the numerical value of obliquity sensor 6.
The difference of embodiment 2 and embodiment 1 is：The rising control of bottom plate 2 is automatically controls in embodiment 1, embodiment 2
The rising control of middle bottom plate 2 is control manually.
When testing the angle of friction of small size particle and tested plate using the test device, operator can rotate handle manually
3 rotate the second rotary shaft 40 and drive bottom plate 2 to be lifted up with one end that attachment structure 20 is connected, during bottom plate 2 is lifted,
Obliquity sensor 6 measures the bottom of bottom plate 2 and the angle of horizontal plane and transmitted to controller in real time, and controller transmits the angle
To numerical value display module 8 and show, operator visually observes and judged, under operator thinks that all small size particles start
Stop operating handle 3 when sliding, and now numerical value display module 8 shows that the angle value of angle is small size particle and tested plate
Angle of friction.A kind of test device of small size particle angle of friction of the utility model, it is simple in construction, easy to operate, can directly it obtain
The measured value of angle of friction is taken, and measurement accuracy is high.
Wherein, the test device also includes the image-capturing apparatus 9 being connected with controller, and image-capturing apparatus 9 is used for
Catch the image of small size particle downslide situation on tested plate.When measuring the angle of friction of small size particle and tested plate,
The image of the real-time capture small size particle downslide situation of image-capturing apparatus 9 and by the image transmitting to controller carry out processing and
Judge, when controller judges that all small size particles start to glide, controller sends signal, operator stops operating handle
3, the angle value of the now display of numerical value display module 8 angle is the angle of friction of small size particle and tested plate.In this way,
Allow an operator to send controller the angle of friction obtained when stopping operating 3 signal of handle, granule is visually observed with operator
Actively stopped operating after the particle downslide situation of footpath handle 3 when the angle of friction that obtains be compared and judge, to improve rubbing for measurement
Wipe the precision at angle.
In addition, the test device also includes the self-locking device for the position of fixed handle 3；The self-locking device includes carving
Scale 4 and fixed block 31, dial 4 is on support 1 and is located between support 1 and handle 3, and the second rotary shaft 40 is passed through and carved
The center of scale 4；Dial 4 is provided with some through holes 41, and fixed block 31 is set in the second rotary shaft 40 on fixed block 31
There is the projection matched with through hole 41（32）.After judging that all small size particles start downslide, the setting of self-locking device causes
Operator in time can lock handle 3, prevent operator's hand wobble introduce human error, and then reduce measurement angle of friction with
The error of real angle of friction.
The present embodiment additionally provides the method for testing of a kind small size particle angle of friction, and the method for testing uses above-mentioned survey
Trial assembly is put, and is comprised the following steps：
S1. by tested plate on bottom plate 2, and a certain amount of small size particle is placed on tested plate；
S2. controller is opened, obliquity sensor 6 and numerical value display module 8 is in working condition；
S3. manually rotate handle 3 and drive the second rotary shaft 40 rotate make one end that bottom plate 2 is connected with attachment structure 20 to
On lift, during bottom plate 2 is lifted, obliquity sensor 6 in real time measurement bottom plate 2 bottom and horizontal plane angle simultaneously transmit to control
Device processed, controller transmits the angle to numerical value display module（8）And show；
S4. operator judges whether all small size particles start downslide；When small size particle is without all gliding,
Repeat step S3；When all small size particles start to glide, stop operating handle 3, and record numerical value display module 8 shows folder
The angle value at angle；
S5. step S3 and S4 is repeated several times, access value display module 8 shows that the average value of the angle value of angle is used as granule
The angle of friction of footpath particle and tested plate.
A kind of method of testing of small size particle angle of friction of the utility model, can directly obtain the measured value of angle of friction, and
Measurement accuracy is high.
Wherein, image-capturing apparatus 9 is also in working condition, step S4 in step S2 can be by controller to image
The image that seizure equipment 9 is caught judges whether all small size particles start downslide after being handled；When small size particle does not have
When having all downslides, repeat step S3；When all small size particles start to glide, controller sends signal, and operator stops
Rotation stop fixed handle 3, the angle value of the now display of numerical value display module 8 angle is the friction of small size particle and tested plate
Angle.In this way, allowing an operator to send controller the angle of friction obtained when stopping operating 3 signal of handle, with operator
The angle of friction obtained when actively stopping operating handle 3 after small size particle downslide situation is visually observed to be compared and judge, with
Improve the precision of the angle of friction of measurement.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.All any modifications, equivalent substitutions and improvements made within spirit of the present utility model and principle etc., should be included in
Within the utility model scope of the claims.
Claims (8)
1. a kind of test device of small size particle angle of friction, it is characterised in that including controller, tested plate, support（1）、
Bottom plate（2）, the first rotary shaft（7）, drive device（5）, attachment structure（20）, obliquity sensor（6）, numerical value display module（8）
And image-capturing apparatus（9）, tested plate is detachably arranged at bottom plate（2）On, drive device（5）, obliquity sensor（6）, number
It is worth display module（8）And image-capturing apparatus（9）It is connected with controller；First rotary shaft（7）Located at support（1）On, and branch
Frame（1）Bottom be provided with rotary shaft（30）, bottom plate（2）One end pass through rotary shaft（30）With support（1）Rotate connection, bottom plate
（2）The other end can pass through attachment structure（20）With the first rotary shaft（7）Connection, drive device（5）For driving first to rotate
Axle（7）Rotation；Obliquity sensor（6）Located at bottom plate（2）It is upper to be used to measure bottom plate（2）Bottom and horizontal plane angle, numerical value
Display module（8）For showing obliquity sensor（6）Numerical value, image-capturing apparatus（9）For catching granule on tested plate
The image of footpath particle downslide situation.
2. a kind of test device of small size particle angle of friction according to claim 1, it is characterised in that the test dress
Putting also includes handle（3）And and handle（3）Second rotary shaft of connection（40）, the second rotary shaft（40）Located at support（1）On, bottom
Plate（2）The other end can pass through attachment structure（20）With the second rotary shaft（40）Connection.
3. a kind of test device of small size particle angle of friction according to claim 2, it is characterised in that the test dress
Putting also includes being used for fixed handle（3）The self-locking device of position.
4. a kind of test device of small size particle angle of friction according to claim 3, it is characterised in that the self-locking dress
Put including dial（4）And fixed block（31）, dial（4）Located at support（1）Go up and be located at support（1）With handle（3）Between,
And second rotary shaft（40）Through dial（4）Center；Dial（4）It is provided with some through holes（41）, fixed block（31）If
In the second rotary shaft（40）On, and fixed block（31）It is provided with and through hole（41）The projection of matching（32）.
5. a kind of test device of small size particle angle of friction according to claim 1, it is characterised in that the test dress
Putting also includes baffle plate（10）；Baffle plate（10）Located at bottom plate（2）Upper close rotary shaft（30）One end, and baffle plate（10）Positioned at tested
The lower section of plate, baffle plate（10）Dropped for blocking small size particle from tested plate.
6. a kind of test device of small size particle angle of friction, it is characterised in that including controller, tested plate, support（1）、
Bottom plate（2）, handle（3）, the second rotary shaft（40）, attachment structure（20）, obliquity sensor（6）And numerical value display module（8）；Quilt
Drafting board part is detachably arranged at bottom plate（2）On, obliquity sensor（6）And numerical value display module（8）It is connected with controller；Second
Rotary shaft（40）Located at support（1）On, handle（3）With the second rotary shaft（40）Connection, support（1）Bottom be provided with rotary shaft
（30）, bottom plate（2）One end pass through rotary shaft（30）With support（1）Rotate connection, bottom plate（2）The other end can pass through connect knot
Structure（20）With the second rotary shaft（40）Connection；Obliquity sensor（6）Located at bottom plate（2）It is upper to be used to measure bottom plate（2）Bottom with
The angle of horizontal plane, numerical value display module（8）For showing obliquity sensor（6）Numerical value.
7. a kind of test device of small size particle angle of friction according to claim 6, it is characterised in that the test dress
Put the image-capturing apparatus for also including being connected with controller（9）, image-capturing apparatus（9）For catching small particle on tested plate
The image of particle downslide situation.
8. a kind of test device of small size particle angle of friction according to claim 6, it is characterised in that the test dress
Putting also includes being used for fixed handle（3）The self-locking device of position；The self-locking device includes dial（4）And fixed block（31）,
Dial（4）Located at support（1）Go up and be located at support（1）With handle（3）Between, and the second rotary shaft（40）Through dial
（4）Center；Dial（4）It is provided with some through holes（41）, fixed block（31）Located at the second rotary shaft（40）On, and fixed block
（31）It is provided with and through hole（41）The projection of matching（32）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720161170.7U CN206515201U (en) | 2017-02-22 | 2017-02-22 | A kind of test device of small size particle angle of friction |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720161170.7U CN206515201U (en) | 2017-02-22 | 2017-02-22 | A kind of test device of small size particle angle of friction |
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| CN206515201U true CN206515201U (en) | 2017-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202088A1 (en) * | 2022-04-15 | 2023-10-26 | 盾构及掘进技术国家重点实验室 | Mud cake formation prevention steel plate for shield cutter head, and simulation test table and test method for characteristic testing thereof |
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2017
- 2017-02-22 CN CN201720161170.7U patent/CN206515201U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023202088A1 (en) * | 2022-04-15 | 2023-10-26 | 盾构及掘进技术国家重点实验室 | Mud cake formation prevention steel plate for shield cutter head, and simulation test table and test method for characteristic testing thereof |
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