CN201508308U - Computerized pendulum friction coefficient determinator - Google Patents
Computerized pendulum friction coefficient determinator Download PDFInfo
- Publication number
- CN201508308U CN201508308U CN2009203077245U CN200920307724U CN201508308U CN 201508308 U CN201508308 U CN 201508308U CN 2009203077245 U CN2009203077245 U CN 2009203077245U CN 200920307724 U CN200920307724 U CN 200920307724U CN 201508308 U CN201508308 U CN 201508308U
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- cantilever
- pendulum
- friction coefficient
- computer
- rotary angle
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Abstract
The utility model discloses a computerized pendulum friction coefficient determinator. Leveling bolts and bubbles are arranged on a base; an upright post is arranged above the base; the upper part of the upright post is connected with a cantilever controlled to be lifted by a lifting handle; a capacitive grating rotary angle transmitter is arranged at the middle-rear end of the cantilever and electrically connected with a digital display arranged at one end of the cantilever; the digital display is electrically connected with a microcomputer; the capacitive grating rotary angle transmitter is connected with a pendulum bob through a transmission shaft and a coupling which are at the middle-front end of the cantilever; a release-push used for controlling the falling of the pendulum bob is arranged at the other end of the cantilever; and a slippery block in contact with the pavement is mounted at the lower part of the pendulum bob. The determinator can measure the rotation angle of the pendulum bob accurately, achieve the corrections of temperature compensation, zero setting, average value calculation and the like and measure the friction coefficient of different pavements under different temperatures accurately, and has the advantages of accurate reading, stability, reliability and good reproducibility. Therefore, the determinator is an ideal instrument for measuring pavement skid resistance condition.
Description
Technical field
The utility model relates to a kind of surface friction coefficient that is used to measure, the computer swinging friction coefficient analyzer of examination pavement skid resistance condition.
Background technology
At present, the domestic frictionmeter that is used to test pavement skid resistance condition, general employing pendulum and road surface contact the frictional resistance of moment generation under certain condition and cause losses of potential energy to measure friction factor, and its test result is with pointer the relative position of index dial to be weighed friction factor.The measurement result instability, poor accuracy, reliability is relatively poor, and uses inconvenient operation.
The utility model content
The purpose of this utility model is to provide a kind of mensuration accurate, reliable and stable, easy to operate computer swinging friction coefficient analyzer.
The technical solution adopted in the utility model is: comprise base, the column of base top, pendulum, be located at the set screw on the pendulum, the lifting handle, balance bob, fastening screw nut, it is characterized in that, the top of described column by back up pad with by lifting the cantilever of hand control lifting is connected, rear end, cantilever middle part is provided with the capacitance-grid type rotary angle transmitter, the capacitance-grid type rotary angle transmitter is electrically connected with the digital display instrument that is located at cantilever one end, digital display instrument is electrically connected with computer, the capacitance-grid type rotary angle transmitter is connected with pendulum by the transmission shaft and the shaft joint of cantilever middle part front end, the other end of cantilever is provided with the release-push that control pendulum is slept and, and the pendulum bottom is equipped with the road surface contacted smooth.
Be provided with the data processing software of temperature compensation, zero-bit adjustment, calculating mean value in the described computer.
Described pendulum is provided with the snap ring that snaps in or break away from release-push.
Go up with sheet rubber and on-slip screw for described smooth.
On base, be provided with movable folder fin.
The utility model adopts accurate capacitance-grid type rotary angle transmitter can accurately measure the pendulum corner, and accuracy can reach 0.10 degree; And carry out data processing by the data handling system of computer, the effect that can realize temperature compensation, zero-bit adjustment, calculating mean value etc. just can accurately be measured the friction factor under the different temperatures of different road surfaces, has reduced the human factor in the measuring process; By the digital display instrument reading, accuracy of reading, reliable and stable, avoided the reading error of dial needle formula, good reproducibility.It is the desirable instrument that pavement skid resistance condition is measured.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to accompanying drawing, be provided with the column 2 perpendicular to base above base 1: the column top is connected with the device 6 of controlling liftings by lifting handle 3 and pinch grip 5 by back up pad 4, rear end, cantilever middle part is provided with capacitance-grid type rotary angle transmitter 7, the capacitance-grid type rotary angle transmitter is electrically connected with the digital display instrument 8 that is located at cantilever one end, digital display instrument can be connected with microcomputer, is provided with the data processing software of temperature compensation, zero-bit adjustment, calculating mean value in microcomputer.The capacitance-grid type rotary angle transmitter is connected with pendulum 11 by the transmission shaft 9 and the shaft joint 10 of cantilever middle part front end, the other end of cantilever is provided with the release-push 12 that the control pendulum falls, and is provided with the snap ring 14, set screw 15, lifting handle 16, balance bob 17, the fastening screw nut 18 that snap in or break away from release-push on pendulum.Be equipped with and contacted smooth 13 of road surface, sheet rubber 19, on-slip screw 20 the pendulum bottom, is provided with leveling bolt 21 on base, and air level 22 also is provided with movable folder fin 23 on base, can adjust collapsible back seat 24.
Using method: (1) correctly is placed in instrument on tested road surface and carries out leveling through leveling bolt and air level; (2) by the contact position on leveling bolt adjustment pendulum and road surface, making pendulum slide length on the road surface is 126 millimeters; (3) reset key on the digital display instrument is pressed in start when the pendulum horizontal positioned, and (4) are provided with test condition and add water in right amount on the test road surface, and (5) press release-push, and pendulum is fallen; When pendulum falls, hold the grid rotary angle transmitter and produce a shaft angle, show test number by digital display instrument; (6) according to the continuously same operational testing of request for utilization five times; (7) by the computer deal with data, obtain test result.
Claims (5)
1. computer swinging friction coefficient analyzer, comprise base, the column of base top, pendulum, be located at the set screw on the pendulum, the lifting handle, balance bob, fastening screw nut, it is characterized in that, the top of described column by back up pad with by lifting the cantilever of hand control lifting is connected, rear end, cantilever middle part is provided with the capacitance-grid type rotary angle transmitter, the capacitance-grid type rotary angle transmitter is electrically connected with the digital display instrument that is located at cantilever one end, digital display instrument is electrically connected with computer, the capacitance-grid type rotary angle transmitter is connected with pendulum by the transmission shaft and the shaft joint of cantilever middle part front end, the other end of cantilever is provided with the release-push that control pendulum is slept and, and the pendulum bottom is equipped with the road surface contacted smooth.
2. computer swinging friction coefficient analyzer according to claim 1 is characterized in that, is provided with the data processing software of temperature compensation, zero-bit adjustment, calculating mean value in the described computer.
3. computer swinging friction coefficient analyzer according to claim 1 is characterized in that described pendulum is provided with the snap ring that snaps in or break away from release-push.
4. computer swinging friction coefficient analyzer according to claim 1 is characterized in that, goes up with sheet rubber and on-slip screw for described smooth.
5. computer swinging friction coefficient analyzer according to claim 1 is characterized in that, is provided with movable folder fin on base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203077245U CN201508308U (en) | 2009-08-11 | 2009-08-11 | Computerized pendulum friction coefficient determinator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203077245U CN201508308U (en) | 2009-08-11 | 2009-08-11 | Computerized pendulum friction coefficient determinator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201508308U true CN201508308U (en) | 2010-06-16 |
Family
ID=42469435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203077245U Expired - Fee Related CN201508308U (en) | 2009-08-11 | 2009-08-11 | Computerized pendulum friction coefficient determinator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201508308U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674830A (en) * | 2013-11-15 | 2014-03-26 | 交通运输部公路科学研究所 | Pendulum-type friction coefficient measurement device and method |
| CN104062228A (en) * | 2014-06-10 | 2014-09-24 | 宿迁市科路养护技术有限公司 | Friction coefficient tester with high-precision leveling function |
| CN104062225A (en) * | 2014-06-10 | 2014-09-24 | 宿迁市科路养护技术有限公司 | Pendulum type frictionmeter with high performance connecting rod |
| CN107941691A (en) * | 2017-11-14 | 2018-04-20 | 东华理工大学 | A kind of discrete material skin-friction coefficient analyzer |
| CN108152196A (en) * | 2017-12-29 | 2018-06-12 | 浙江农林大学 | A kind of friction coefficient detection machine |
| CN108169119A (en) * | 2017-12-26 | 2018-06-15 | 崔文良 | A kind of stabilising arrangement of pendulum friction coefficient determinator |
-
2009
- 2009-08-11 CN CN2009203077245U patent/CN201508308U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674830A (en) * | 2013-11-15 | 2014-03-26 | 交通运输部公路科学研究所 | Pendulum-type friction coefficient measurement device and method |
| CN104062228A (en) * | 2014-06-10 | 2014-09-24 | 宿迁市科路养护技术有限公司 | Friction coefficient tester with high-precision leveling function |
| CN104062225A (en) * | 2014-06-10 | 2014-09-24 | 宿迁市科路养护技术有限公司 | Pendulum type frictionmeter with high performance connecting rod |
| CN107941691A (en) * | 2017-11-14 | 2018-04-20 | 东华理工大学 | A kind of discrete material skin-friction coefficient analyzer |
| CN107941691B (en) * | 2017-11-14 | 2020-02-18 | 东华理工大学 | Surface friction coefficient tester for bulk material |
| CN108169119A (en) * | 2017-12-26 | 2018-06-15 | 崔文良 | A kind of stabilising arrangement of pendulum friction coefficient determinator |
| CN108152196A (en) * | 2017-12-29 | 2018-06-12 | 浙江农林大学 | A kind of friction coefficient detection machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20110811 |