CN205404376U - Experimental device for measure silo bulkhead and bin stock coefficient of friction - Google Patents
Experimental device for measure silo bulkhead and bin stock coefficient of friction Download PDFInfo
- Publication number
- CN205404376U CN205404376U CN201620154734.XU CN201620154734U CN205404376U CN 205404376 U CN205404376 U CN 205404376U CN 201620154734 U CN201620154734 U CN 201620154734U CN 205404376 U CN205404376 U CN 205404376U
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- bin stock
- climbing
- measured
- belt conveyor
- friction
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Abstract
The utility model discloses an experimental device for measure silo bulkhead and bin stock coefficient of friction, bin stock discharging device sets up in the climbing section top of going straight climbing conveyor belt, bin stock recovery unit sets up at climbing conveyor belt's the craspedodrome section tip of going straight, await measuring the bin stock setting in bin stock discharging device, the silo bulkhead sample that awaits measuring sets up on the climbing conveyor belt that gos straight, the one of which end position is above the climbing conveyor belt climbing section of going straight, the other end is located the climbing conveyor belt craspedodrome section of going straight, it is equipped with the fixation clamp on the silo bulkhead sample to await measuring, the fixation clamp links firmly through connecting rod and dynamometer, the position of dynamometer is higher than the climbing conveyor belt's that gos straight craspedodrome section, and the dynamometer is connected with the data acquisition device. The utility model discloses both can the precision measurement await measuring silo bulkhead and the coefficient of friction between the bin stock of awaiting measuring can also developments observe await measuring silo bulkhead and the coefficient of friction's between the bin stock that awaits measuring change, and realization simultaneously is to the measuring and the monitoring of the silo bulkhead degree of wear that awaits measuring.
Description
Technical field
This utility model belongs to construction engineering test field, is specifically related to the experimental provision of a kind of measuring cylinder silo wall and bin stock coefficient of friction.
Background technology
In Design of Silo, it is necessary to consider the frictional force between silo bulkhead and bin stock, in silo construction engineering test, it is also desirable to the frictional force between silo bulkhead and bin stock is measured.
Cao Xianjun proposes a kind of method measuring spinning, drawing rubber parts coefficient of friction in " ramp type frictionmeter ", on slide plate, sample to be tested is first placed during measurement, then slide plate is manually lifted to sample just along slide plate slides, again through the simple coefficient of friction calculating and obtaining sample with slide plate.This measuring method is higher to the specification requirement of sample, is unsuitable for the measurement of bulk cargo coefficient of friction, and manual operation is also relatively larger on the impact of experimental result.
Cheng Hongsheng etc. propose a kind of agricultural material coefficient of sliding friction method for automatic measurement in " design of a kind of agricultural material coefficient of sliding friction measurement apparatus ", they are according to inclined-plane mechanics principle and photoelectricity test technology, devise a kind of agricultural material coefficient of sliding friction self-operated measuring unit, and for Fructus Litchi, recorded the coefficient of sliding friction between Fructus Litchi and rubber slab and nylon sheet.The method is suitable for measuring the coefficient of friction of the bigger material of granule, and for the material that granule is less, measurement effect is also bad；Accuracy of instrument is required height by the method, and installation cost is relatively larger.
Summary of the invention
The purpose of this utility model is in that the experimental provision providing a kind of measuring cylinder silo wall with bin stock coefficient of friction, both the coefficient of friction between silo bulkhead to be measured and bin stock to be measured can accurately have been measured, the change of coefficient of friction between silo bulkhead to be measured and bin stock to be measured be can also dynamically observe, the detection to the silo bulkhead degree of wear to be measured and monitoring realized simultaneously.
The technical solution realizing this utility model purpose is: the experimental provision of a kind of measuring cylinder silo wall and bin stock coefficient of friction, including climbing belt conveyor, fixation clamp, connecting rod, ergometer, data acquisition unit, bin stock drawing mechanism, the bin stock retracting device of keeping straight on.
Described bin stock drawing mechanism is arranged on above the climbing section of climbing belt conveyor of keeping straight on, bin stock retracting device is arranged on the craspedodrome section end away from climbing section of climbing belt conveyor of keeping straight on, bin stock to be measured is arranged in bin stock drawing mechanism, the bin stock to be measured in bin stock drawing mechanism is made to fall in the climbing section of climbing belt conveyor of keeping straight on, through climbing belt conveyor transmission of keeping straight on, fall in bin stock retracting device；Silo bulkhead sample to be measured is arranged on craspedodrome climbing belt conveyor, its one end is positioned at above craspedodrome climbing belt conveyor climbing section, the other end is positioned in craspedodrome climbing belt conveyor craspedodrome section, silo bulkhead sample to be measured is provided with fixation clamp, fixation clamp is connected with ergometer by connecting rod, and the position of described ergometer is higher than the craspedodrome section of climbing belt conveyor of keeping straight on；Ergometer is connected with data acquisition unit.
The thickness that the craspedodrome section discrepancy in elevation between the two is one layer of bin stock to be measured of described ergometer and climbing belt conveyor of keeping straight on.
Also including weightening finish block, described weightening finish block is fixed on silo bulkhead sample top to be measured.
Described weightening finish block is positioned at the top center of silo bulkhead sample to be measured.
Belt geo-stationary in transmitting procedure of described bin stock to be measured and climbing belt conveyor of keeping straight on.
Described ergometer and bin stock drawing mechanism homonymy, bin stock drawing mechanism does not contact with connecting rod.
This utility model compared with prior art, its remarkable advantage:
(1) ergometer and the thickness that the craspedodrome section discrepancy in elevation between the two is one layer of bin stock to be measured of climbing belt conveyor of keeping straight on, eliminate the silo bulkhead sample partical gravity to be measured interference to experimental result so that certainty of measurement is higher.
(2) fixing weightening finish block on silo bulkhead sample to be measured, it is ensured that silo bulkhead sample to be measured operates the stability in engineering, the problem simultaneously avoiding the certainty of measurement caused because frictional force the is too small inclined end so that certainty of measurement is higher at device.
(3) suitable in the measurement of coefficient of friction between the bin stock of variable grain size and silo bulkhead.
(4) change of coefficient of friction between silo bulkhead to be measured and bin stock to be measured, the degree of wear of detection silo bulkhead can dynamically be observed.
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this utility model measuring cylinder silo wall and the experimental provision of bin stock coefficient of friction.
Detailed description of the invention
In conjunction with Fig. 1, the experimental provision of a kind of measuring cylinder silo wall and bin stock coefficient of friction, including climbing of keeping straight on, belt conveyor 1(is commercial), silo bulkhead sample 2 to be measured, fixation clamp 3, connecting rod 4, ergometer 5(commercial), data acquisition unit 6(commercial), bin stock to be measured 7, drawing mechanism 8(is commercial for bin stock), retracting device 9(is commercial for bin stock).
Described bin stock drawing mechanism 8 is arranged on above the climbing section of climbing belt conveyor 1 of keeping straight on, bin stock retracting device 9 is arranged on the end of the craspedodrome section of climbing belt conveyor 1 of keeping straight on, described end is the one end away from climbing section, bin stock 7 to be measured is arranged in bin stock drawing mechanism 8, the bin stock to be measured 7 in bin stock drawing mechanism 8 is made to fall in the climbing section of climbing belt conveyor 1 of keeping straight on, through keeping straight on, climbing belt conveyor 1 transmits, and falls in bin stock retracting device 9.Silo bulkhead sample 2 to be measured is arranged on craspedodrome climbing belt conveyor 1, its one end is positioned at above craspedodrome climbing belt conveyor 1 section of climbing, the other end is positioned at above craspedodrome climbing belt conveyor 1 section of craspedodrome, silo bulkhead sample 2 to be measured is provided with fixation clamp 3, fixation clamp 3 is connected with ergometer 5 by connecting rod 4, and the position of described ergometer 5 is higher than the craspedodrome section of climbing belt conveyor 1 of keeping straight on；Ergometer 5 is connected with data acquisition unit 6.
Further, the thickness that the craspedodrome section discrepancy in elevation between the two is one layer of bin stock 7 to be measured of described ergometer 5 and climbing belt conveyor 1 of keeping straight on.In device operation, what ergometer 5 was measured all the time is the frictional force between silo bulkhead sample 2 to be measured and bin stock to be measured 7, eliminates the silo bulkhead sample 2 partical gravity to be measured impact on experimental result.
Further, this utility model also includes weightening finish block 10, described weightening finish block 10 is fixed on silo bulkhead sample 2 top to be measured, it is ensured that the silo bulkhead sample 2 to be measured stability in device operation, it is to avoid the problem that the certainty of measurement that causes because frictional force is too small is on the low side.And described weightening finish block 10 is positioned at the top center of silo bulkhead sample 2 to be measured.
Further, the belt of described climbing belt conveyor 1 of keeping straight on is sufficiently coarse, ensure bin stock 7 to be measured and belt geo-stationary in transmitting procedure of climbing belt conveyor 1 of keeping straight on, be beneficial to the frictional force accurately measuring between bin stock 7 to be measured and silo bulkhead sample 2 to be measured.
Further, described bin stock drawing mechanism 8 is used for throwing in bin stock 7 to be measured, can be selected for funnel, material leakage machine etc..
Further, described bin stock retracting device 9 is used for collecting bin stock 7 to be measured, can be selected for recycling bin, collection box etc..
Further, described data acquisition unit 6, for gathering the frictional force data that ergometer 5 is surveyed, can be selected for PC or storage card etc..
Further, ergometer 5 is arranged with bin stock drawing mechanism 8 homonymy, it is ensured that the direction that silo bulkhead sample 2 to be measured is subject to is identical with the direction of motion of bin stock 7 to be measured.Connecting rod 4 does not contact with bin stock drawing mechanism 8.
Work process is as follows:
Bin stock drawing mechanism 8 loads bin stock 7 to be measured, open the power supply of climbing belt conveyor 1 of keeping straight on, climbing belt conveyor 1 of keeping straight on is started working, open bin stock drawing mechanism 8 discharging opening, bin stock 7 to be measured drops in the climbing section of climbing belt conveyor 1 of keeping straight on, owing to the position of ergometer 5 is higher than the craspedodrome section of climbing belt conveyor 1 of keeping straight on, and belt geo-stationary in transmitting procedure of bin stock to be measured 7 and climbing belt conveyor 1 of keeping straight on, therefore bin stock 7 to be measured can enter between craspedodrome section and the silo bulkhead sample 2 to be measured of climbing belt conveyor 1 of keeping straight on smoothly, rub with silo bulkhead sample 2 to be measured, ergometer 5 obtains frictional force in real time, utilize data acquisition unit 6 to carry out timing simultaneously, data acquisition unit 6 gathers and processes data.
If silo bulkhead sample 2 to be measured is fixed in horizontal slide rail, silo bulkhead sample 2 to be measured can be slided along slide rail, then the measurement of frictional force is carried out, can cause that the frictional force recorded is not the frictional force between pure silo bulkhead sample 2 to be measured and bin stock to be measured 7, further comprises the frictional force between silo bulkhead sample 2 to be measured and slide rail.
Embodiment 1
The experimental provision of a kind of measuring cylinder silo wall and bin stock coefficient of friction, including climbing of keeping straight on, belt conveyor 1(is commercial), silo bulkhead sample 2 to be measured, fixation clamp 3, connecting rod 4, ergometer 5(commercial), data acquisition unit 6(commercial), bin stock to be measured 7, drawing mechanism 8(is commercial for bin stock), retracting device 9(is commercial for bin stock).
Described bin stock drawing mechanism 8 is arranged on above the climbing section of climbing belt conveyor 1 of keeping straight on, bin stock retracting device 9 is arranged on the end of the craspedodrome section of climbing belt conveyor 1 of keeping straight on, described end is the one end away from climbing section, bin stock 7 to be measured is arranged in bin stock drawing mechanism 8, the bin stock to be measured 7 in bin stock drawing mechanism 8 is made to fall in the climbing section of climbing belt conveyor 1 of keeping straight on, through keeping straight on, climbing belt conveyor 1 transmits, and falls in bin stock retracting device 9.Silo bulkhead sample 2 to be measured is arranged on craspedodrome climbing belt conveyor 1, its one end is positioned at above craspedodrome climbing belt conveyor 1 section of climbing, the other end is positioned at above craspedodrome climbing belt conveyor 1 section of craspedodrome, silo bulkhead sample 2 to be measured is provided with fixation clamp 3, fixation clamp 3 is connected with ergometer 5 by connecting rod 4, and the position of described ergometer 5 is higher than the craspedodrome section of climbing belt conveyor 1 of keeping straight on；Ergometer 5 is connected with data acquisition unit 6.
The thickness that the craspedodrome section discrepancy in elevation between the two is one layer of bin stock 7 to be measured of described ergometer 5 and climbing belt conveyor 1 of keeping straight on.
Also including weightening finish block 10, described weightening finish block 10 is fixed on silo bulkhead sample 2 top to be measured.
Described weightening finish block 10 is positioned at the top center of silo bulkhead sample 2 to be measured.
Belt geo-stationary in transmitting procedure of described bin stock to be measured 7 and climbing belt conveyor 1 of keeping straight on.
Ergometer 5 is arranged with bin stock drawing mechanism 8 homonymy, it is ensured that the direction that silo bulkhead sample 2 to be measured is subject to is identical with the direction of motion of bin stock 7 to be measured.
The concrete slab () that intensity is C40 of making in laboratory selected by silo bulkhead sample 2 to be measured, data acquisition unit 6 adopts PC, bin stock 7 to be measured adopts the clinker (mean particle size 15mm) bought, the craspedodrome section discrepancy in elevation between the two of ergometer 5 and climbing belt conveyor 1 of keeping straight on is 15mm, bin stock drawing mechanism 8 selects funnel, funnel discharging opening is provided with switch valve, and retracting device 9 adopts recycling bin.
Silo bulkhead sample 2 mass 3.86kg to be measured, fixation clamp 3 and connecting rod 4 gross mass 0.46kg, increase weight thing 10 mass 3kg, and above-mentioned four total force are.
Bin stock drawing mechanism 8 loads bin stock 7 to be measured, opening the power supply of climbing belt conveyor 1 of keeping straight on, climbing belt conveyor 1 of keeping straight on is started working, and opens the switch valve of bin stock drawing mechanism 8 discharging opening, utilizing data acquisition unit 6 to carry out timing, data acquisition unit 6 gathers and processes data simultaneously.Coefficient of friction between silo bulkhead sample 2 to be measured and bin stock to be measured 7 is calculated by formula, and following table lists 6 groups of measurement data.
The measurement data table of table 1 frictional force and coefficient of friction
| Time/min | 5 | 15 | 25 | 35 | 45 | 55 |
| Frictional force f/N | 34.48 | 34.50 | 34.50 | 34.51 | 34.52 | 34.52 |
| 0.4807 | 0.4809 | 0.4809 | 0.4811 | 0.4812 | 0.4812 |
This utility model is suitable in the measurement of coefficient of friction between bin stock and the bulkhead of variable grain size, both can accurate coefficient of friction between measuring cylinder silo wall and bin stock, the change of coefficient of friction between silo bulkhead to be measured and bin stock to be measured be can also dynamically observe, the detection to the silo bulkhead degree of wear and monitoring realized simultaneously.
Claims (6)
1. the experimental provision of a measuring cylinder silo wall and bin stock coefficient of friction, it is characterised in that: include keep straight on climbing belt conveyor (1), fixation clamp (3), connecting rod (4), ergometer (5), data acquisition unit (6), bin stock drawing mechanism (8), bin stock retracting device (9)；
Described bin stock drawing mechanism (8) is arranged on above the climbing section of climbing belt conveyor (1) of keeping straight on, bin stock retracting device (9) is arranged on the craspedodrome section end away from climbing section of climbing belt conveyor (1) of keeping straight on, bin stock to be measured (7) is arranged in bin stock drawing mechanism (8), the bin stock to be measured (7) in bin stock drawing mechanism (8) is made to fall in the climbing section of climbing belt conveyor (1) of keeping straight on, through keeping straight on, climbing belt conveyor (1) transmits, and falls in bin stock retracting device (9)；Silo bulkhead sample (2) to be measured is arranged in craspedodrome climbing belt conveyor (1), its one end is positioned at above craspedodrome climbing belt conveyor (1) climbing section, the other end is positioned in craspedodrome climbing belt conveyor (1) craspedodrome section, silo bulkhead sample (2) to be measured is provided with fixation clamp (3), fixation clamp (3) is connected with ergometer (5) by connecting rod (4), and the position of described ergometer (5) is higher than the craspedodrome section of climbing belt conveyor (1) of keeping straight on；Ergometer (5) is connected with data acquisition unit (6).
2. the experimental provision of measuring cylinder silo wall according to claim 1 and bin stock coefficient of friction, it is characterised in that: the thickness that the craspedodrome section discrepancy in elevation between the two is one layer of bin stock to be measured (7) of described ergometer (5) and climbing belt conveyor (1) of keeping straight on.
3. the experimental provision of measuring cylinder silo wall according to claim 1 and bin stock coefficient of friction, it is characterised in that: also including weightening finish block (10), described weightening finish block (10) is fixed on silo bulkhead sample (2) top to be measured.
4. the experimental provision of measuring cylinder silo wall according to claim 3 and bin stock coefficient of friction, it is characterised in that: described weightening finish block (10) is positioned at the top center of silo bulkhead sample (2) to be measured.
5. the experimental provision of measuring cylinder silo wall according to claim 1 and bin stock coefficient of friction, it is characterised in that: belt geo-stationary in transmitting procedure of described bin stock to be measured (7) and climbing belt conveyor (1) of keeping straight on.
6. the experimental provision of measuring cylinder silo wall according to claim 1 and bin stock coefficient of friction, it is characterised in that: described ergometer (5) and bin stock drawing mechanism (8) homonymy, bin stock drawing mechanism (8) does not contact with connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620154734.XU CN205404376U (en) | 2016-03-01 | 2016-03-01 | Experimental device for measure silo bulkhead and bin stock coefficient of friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620154734.XU CN205404376U (en) | 2016-03-01 | 2016-03-01 | Experimental device for measure silo bulkhead and bin stock coefficient of friction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205404376U true CN205404376U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620154734.XU Withdrawn - After Issue CN205404376U (en) | 2016-03-01 | 2016-03-01 | Experimental device for measure silo bulkhead and bin stock coefficient of friction |
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| CN (1) | CN205404376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675486A (en) * | 2016-03-01 | 2016-06-15 | 南京理工大学 | Experimental apparatus for measuring friction coefficient between silo wall and stored material |
-
2016
- 2016-03-01 CN CN201620154734.XU patent/CN205404376U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675486A (en) * | 2016-03-01 | 2016-06-15 | 南京理工大学 | Experimental apparatus for measuring friction coefficient between silo wall and stored material |
| CN105675486B (en) * | 2016-03-01 | 2018-03-09 | 南京理工大学 | Measuring cylinder silo wall and the experimental provision of bin stock coefficient of friction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160727 Effective date of abandoning: 20180309 |