CN102081036B - Tester for frictional coefficient between rain wiper rubber strip and glass - Google Patents
Tester for frictional coefficient between rain wiper rubber strip and glass Download PDFInfo
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- CN102081036B CN102081036B CN2010105507828A CN201010550782A CN102081036B CN 102081036 B CN102081036 B CN 102081036B CN 2010105507828 A CN2010105507828 A CN 2010105507828A CN 201010550782 A CN201010550782 A CN 201010550782A CN 102081036 B CN102081036 B CN 102081036B
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- windscreen wiper
- glass
- arm
- tester
- base plate
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Abstract
The invention provides a tester for the frictional coefficient between a rain wiper rubber strip and glass. In the tester, a motor shaft of a DC motor is connected with a driving wheel by a bevel gear, a synchronous belt is connected between the driving wheel and a driven wheel, and the upper part of the driven wheel is provided with round glass; when the DC motor is electrified, the DC motor can drive the round glass to do uniform circular motion; the rain wiper rubber strip is pressed on the flat glass by a rain wiper blade and a rain wiper arm, and an arm holder of the rain wiper arm is arranged on a fixed shaft part of the bottom plate; the rain wiper arm is provided with a fixing block, an adjusting screw, a nut, a spring and a hook and can adjust the wiper arm pressure in real time, namely adjust the downward pressure of the rain wiper rubber strip; and a pressure sensor and a thrust sensor are fixed on the bottom plate and a fixing bracket respectively and both connected with a processor by a signal wire, the pressure sensor detects the downward pressure of the rain wiper rubber strip, the thrust sensor detects the frictional force between the rain wiper rubber strip and the glass, and the detected frictional coefficient is processed by the processor and then displayed. The tester can accurately detect the frictional coefficient between the rain wiper rubber strip and the glass.
Description
Technical field: the present invention relates to the device that a kind of testing automobile wiper is scraped the friction factor between glue bar and glass, particularly a kind of windscreen wiper adhesive tape and glass friction factor tester.
Background technology: testing friction factor between windscreen wiper adhesive tape and glass at present, generally is earlier the windscreen wiper arm to be assemblied on the output shaft free to rotate, is connected with the windscreen wiper sheet on the windscreen wiper arm; Under the pressure effect of windscreen wiper arm; Windscreen wiper adhesive tape on the windscreen wiper sheet is crushed on glass, uses spring balance or other device for measuring force then, vertically acts on windscreen wiper sheet middle part; Traction windscreen wiper sheet is done uniform circular motion around output shaft, tries to achieve the friction factor (μ) between windscreen wiper adhesive tape and glass through tractive force and scraping arm pressure.In theory really, simple, but in the actual mechanical process, it is constant that the velocity magnitude of traction is difficult for keeping, the direction of tractive force also is difficult for keeping perpendicular to the windscreen wiper adhesive tape at the volley in addition, and the result causes error very big, is difficult to reach actual test and request for utilization.
Summary of the invention: the object of the present invention is to provide a kind of windscreen wiper adhesive tape and glass friction factor tester; This tester is through the reverse movement principle; Solve tractive force size and the constant problem of direction; Can be according to dry and wet state or the clean conditions of glass under different medium, realize accurately determining the friction factor of corresponding windscreen wiper adhesive tape and glass, for the design of wiper provides reliable foundation.
Formation of the present invention: form by base plate, stationary shaft member, windscreen wiper arm, windscreen wiper sheet, direct current generator, driving wheel, synchronous band, engaged wheel, Circular glass, pressure transducer, thrust pickup, processor, fixed support and signal wire; Base plate is the basis of tester, and base is equipped with direct current generator; Base plate top is equipped with stationary shaft member, pedestal, assistant support legs, fixed support, and pressure transducer stands up on base plate, and the thrust pickup level is assemblied on the fixed support; Fix through trip bolt, pressure transducer all links to each other with processor through signal wire with thrust pickup, and there is standard shaft the pedestal upper end; Be equipped with two deep groove ball bearing A on the standard shaft, these two deep groove ball bearing A are embedded in again in the internal recess of engaged wheel, and plane and Circular glass bond together on the engaged wheel; The motor shaft of direct current generator and driving wheel are connected through the awl tooth, and be fastening through first nut, is connected through synchronous being with between driving wheel and engaged wheel; The linking arm of windscreen wiper sheet links to each other with the fixed block of windscreen wiper arm through bearing pin, and fixed block and arm plate are through riveting, weld or bonding together, and the arm plate is connected with hook through rivet with the wall seat; Be installed on the stationary shaft of stationary shaft member; Adjusting screw(rod) is installed in the hole of fixed block, and adjusting screw(rod) one end is fixed by second nut, and the other end links to each other with spring.
The windscreen wiper sheet is made up of linking arm, arc press strip, plastic gasket, pin, sliver, windscreen wiper adhesive tape.
Stationary shaft member is made up of fixedly axle bed and stationary shaft and two deep groove ball bearing B, and stationary shaft is supported by deep groove ball bearing B.
Base is equipped with leg for four jiaos, and the assistant support legs on base plate top adopts the selflubricatingpiston material, and the assistant support legs top adopts line or facet to contact with Circular glass.
Compared with prior art, the present invention is through the reverse movement principle, and promptly glass is done uniform circular motion, and it is motionless that the windscreen wiper sheet keeps under friction force and tractive force balance situation, solves tractive force size and the constant problem of direction.This tester drives glass and does uniform circular motion through direct current generator, driving wheel, synchronous band, engaged wheel; Through the stationary shaft that can rotate freely, with wiper arm assembly, promptly windscreen wiper arm+windscreen wiper sheet is fixed on glassly, and pressure and the friction force through power value sensor test windscreen wiper sheet calculates the coefficientoffriction value through processor then.This tester is simple in structure; Flexible and convenient operation; Can be according to dry and wet state or the clean conditions of glass under different medium; Realize accurately determining the friction factor of corresponding windscreen wiper adhesive tape and glass, be convenient to observe the windscreen wiper adhesive tape in addition and move attitude, for the design of wiper provides reliable foundation.
Description of drawings:
Fig. 1 scrapes glue bar downforce synoptic diagram for the tester test,
Fig. 2 scrapes glue bar friction force synoptic diagram for the tester test,
Fig. 3 is horizontal level synoptic diagram in the tester test,
Fig. 4 is the C-C sectional view of Fig. 3,
Fig. 5 is the H partial enlarged drawing of Fig. 4,
Fig. 6 is the I partial enlarged drawing of Fig. 4,
Fig. 7 is the D-D sectional view of Fig. 3,
Fig. 8 is the K partial enlarged drawing of Fig. 7,
Fig. 9 is the upward view of Figure 10,
Figure 10 tests with scraping arm scraping blade front view,
Figure 11 is the E-E profile of Figure 10.
Among the figure 1, base plate, 2, stationary shaft member, 3, the windscreen wiper arm, 4, the windscreen wiper sheet, 5, direct current generator, 6, driving wheel, 7, band synchronously; 8, engaged wheel, 9, Circular glass, 10, pressure transducer, 11, thrust pickup, 12, processor, 13, fixed support, 14, leg; 15, pedestal, 16, assistant support legs, 17, trip bolt, 18, signal wire, 19, standard shaft, 20, deep groove ball bearing A, 21, internal recess; 22, plane on the engaged wheel, 23, motor shaft, 24, the awl tooth, 25, first nut, 26, the assistant support legs top, 27, fixing axle bed; 28, stationary shaft, 29, deep groove ball bearing B, 30, arm seat, 31, rivet, 32, hook, 33, spring; 34, arm plate, 35, adjusting screw(rod), 36, fixed block, 37, second nut, 38, linking arm, 39, arc press strip; 40, plastic gasket, 41, pin, 42, sliver, 43, the windscreen wiper adhesive tape, 44, bearing pin, 45, the hole of fixed block.
Embodiment: shown in Fig. 1-11; Form by base plate, stationary shaft member, windscreen wiper arm, windscreen wiper sheet, direct current generator, driving wheel, synchronous band, engaged wheel, Circular glass, pressure transducer, thrust pickup, processor, fixed support and signal wire; Base plate 1 is the basis of tester, and base plate 1 bottom is equipped with direct current generator 5; Base plate 1 top is equipped with stationary shaft member 2, pedestal 15, assistant support legs 16, fixed support 13, and pressure transducer 10 stands up on base plate 1, is used to detect the pressure of windscreen wiper sheet 4; Thrust pickup 11 levels are assemblied on the fixed support 13, and are fixing through trip bolt 17, are used to detect the suffered friction force of windscreen wiper sheet 4; Pressure transducer 10 all links to each other with processor 12 through signal wire 18 with thrust pickup 11, and processor 12 can write down the power value that shows two sensors, and friction force f and pressure N are the merchant, promptly obtains the coefficientoffriction value and demonstration on processor 12; There is standard shaft 19 pedestal 15 upper ends; Be equipped with two deep groove ball bearing A20 on the standard shaft 19; These two deep groove ball bearing A are embedded in again in the internal recess 21 of engaged wheel 8, and plane 22 bonds together with Circular glass 9 on the engaged wheel, and Circular glass 9 can freely rotate around the standard shaft 19 of pedestal 15 like this; The motor shaft 23 of direct current generator 5 and driving wheel 6 are connected through awl tooth 24, and be fastening through first nut 25, and 8 of driving wheel 6 and engaged wheels are through be with 7 to be connected transmission synchronously.After direct current generator 5 energisings, can drive Circular glass 9 and do uniform circular motion.The windscreen wiper arm 3 of test usefulness can be regulated windscreen wiper arm pressure size according to test request; Windscreen wiper arm 3 is made up of arm seat 30, rivet 31, hook 32, spring 33, arm plate 34, adjusting screw(rod) 35, fixed block 36, second nut 37; The linking arm 38 of windscreen wiper sheet 4 links to each other with the fixed block 36 of windscreen wiper arm 3 through bearing pin 44, and fixed block 36 and arm plate 34 are through riveting, weld or bonding together, and arm plate 34 is connected with hook 32 through rivet 31 with wall seat 30; Be installed on the stationary shaft 28 of stationary shaft member 2; Adjusting screw(rod) 35 is installed in the hole 45 of fixed block, and adjusting screw(rod) one end is fixing by second nut 37, and the other end links to each other with spring 33.Screwing or unscrewing second nut 37 to make adjusting screw(rod) 35 relative fixed piece move left and right, and the action length of regulating spring 33 with the size of adjusting windscreen wiper arm pressure, thereby changes the pressure size of windscreen wiper sheet 4 on Circular glass 9.
During test, the first step is thrown off windscreen wiper sheet 4 and two sensors (pressure transducer 10, thrust pickup 11) earlier, then with test data zero clearings all in the processor 12.Second goes on foot two slivers 42 of assembling on the windscreen wiper adhesive tape 43 that will test usefulness; Then it is penetrated to the pawl folder of arc press strip 39; Again windscreen wiper sheet 4 is threaded to pressure transducer 10 upper ends, puts down windscreen wiper sheet 4 gently and be pressed in (referring to Fig. 1) on the sensor 10 then, Operation Processor 12 record force value.The 3rd step is earlier with direct current generator 5 energisings; Circular glass 9 uniform motion moments later; Again windscreen wiper sheet 4 is lifted and be threaded near the thrust pickup 11, put down windscreen wiper sheet 4 gently, under function of friction; Windscreen wiper sheet 4 can be close to (referring to Fig. 2) on the thrust pickup 11, Operation Processor 12 record thrust magnitudes (being friction force value).In the 4th step, Operation Processor 12 calculates, and draws the coefficientoffriction value and demonstration on processor 12.
Claims (4)
1. windscreen wiper adhesive tape and glass friction factor tester; Form by base plate, stationary shaft member, windscreen wiper arm, windscreen wiper sheet, direct current generator, driving wheel, synchronous band, engaged wheel, Circular glass, pressure transducer, thrust pickup, processor, fixed support and signal wire; It is characterized in that: base plate (1) is the basis of tester, and base plate (1) bottom is equipped with direct current generator (5); Base plate (1) top is equipped with stationary shaft member (2), pedestal (15), assistant support legs (16), fixed support (13), and pressure transducer (10) stands up on base plate (1), and thrust pickup (11) level is assemblied on the fixed support (13); Fixing through trip bolt (17); Pressure transducer (10) all links to each other with processor (12) through signal wire (18) with thrust pickup (11), and there is standard shaft (19) pedestal (15) upper end, is equipped with two deep groove ball bearing A (20) on the standard shaft (19); These two deep groove ball bearing A are embedded in again in the internal recess (21) of engaged wheel (8); Plane on the engaged wheel (22) bonds together with Circular glass (9), and the motor shaft (23) of direct current generator (5) is connected through awl tooth (24) with driving wheel (6), and is fastening through first nut (25); Be connected through band (7) synchronously between driving wheel (6) and engaged wheel (8); The linking arm (38) of windscreen wiper sheet (4) links to each other with the fixed block (36) of windscreen wiper arm (3) through bearing pin (44), and fixed block (36) and arm plate (34) are through riveting, weld or bonding together, and arm plate (34) is connected with hook (32) through rivet (31) with wall seat (30); Be installed on the stationary shaft (28) of stationary shaft member (2); Adjusting screw(rod) (35) is installed in the hole (45) of fixed block, and adjusting screw(rod) one end is fixing by second nut (37), and the other end links to each other with spring (33).
2. windscreen wiper adhesive tape according to claim 1 and glass friction factor tester is characterized in that: windscreen wiper sheet (4) is made up of linking arm (38), arc press strip (39), plastic gasket (40), pin (41), sliver (42), windscreen wiper adhesive tape (43).
3. windscreen wiper adhesive tape according to claim 1 and glass friction factor tester; It is characterized in that: stationary shaft member (2) is made up of fixedly axle bed (27) and stationary shaft (28) and two deep groove ball bearing B (29), and stationary shaft (28) is supported by deep groove ball bearing B (29).
4. windscreen wiper adhesive tape according to claim 1 and glass friction factor tester; It is characterized in that: base plate (1) bottom is equipped with leg (14) for four jiaos; The assistant support legs (16) on base plate (1) top adopts the selflubricatingpiston material, and assistant support legs top (26) adopt line or facet to contact with Circular glass (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105507828A CN102081036B (en) | 2010-11-19 | 2010-11-19 | Tester for frictional coefficient between rain wiper rubber strip and glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105507828A CN102081036B (en) | 2010-11-19 | 2010-11-19 | Tester for frictional coefficient between rain wiper rubber strip and glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102081036A CN102081036A (en) | 2011-06-01 |
| CN102081036B true CN102081036B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105507828A Expired - Fee Related CN102081036B (en) | 2010-11-19 | 2010-11-19 | Tester for frictional coefficient between rain wiper rubber strip and glass |
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| CN (1) | CN102081036B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104380074A (en) * | 2012-06-15 | 2015-02-25 | Skf公司 | Machine arrangement |
| CN103776574B (en) * | 2014-01-26 | 2016-01-06 | 安徽江淮汽车股份有限公司 | The frictional resistance test device of glass and adhesive tape in a kind of car glass-frame riser |
| CN103760100B (en) * | 2014-01-26 | 2016-08-17 | 安徽江淮汽车股份有限公司 | Glass and the inside and outside resistance measurement device splitting water bar in car glass-frame riser |
| CN104406765B (en) * | 2014-11-21 | 2017-02-22 | 湖南大学 | Test method for dynamic lift of automobile wiper and test device thereof |
| CN104849207A (en) * | 2015-05-25 | 2015-08-19 | 江苏云睿汽车电器系统有限公司 | Novel windscreen wiper friction coefficient test device |
| CN109187333B (en) * | 2018-10-10 | 2019-10-08 | 中国矿业大学 | Mine hoisting friction lining non-skid property test device and method |
| CN109459219B (en) * | 2018-10-30 | 2020-10-20 | 江苏云睿汽车电器系统有限公司 | Platform equipment is wiped away to windscreen wiper disc |
| CN109521169B (en) * | 2018-11-29 | 2021-05-11 | 新昌县小布点农业发展有限公司 | Freshness degree detection equipment based on outer surface friction force of eggs |
| CN109870297A (en) * | 2019-03-28 | 2019-06-11 | 合肥工业大学 | A kind of multifunctional integrated experimental bench of vehicle wiper |
| CN110758769B (en) * | 2019-11-22 | 2023-04-14 | 西安飞机工业（集团）有限责任公司 | Airplane windshield wiper pretightening force measuring device and method |
| CN112362575B (en) * | 2020-11-03 | 2023-09-29 | 江苏云睿汽车电器系统有限公司 | Windshield wiper adhesive tape friction characteristic measurement platform |
| CN112697696B (en) * | 2020-12-09 | 2023-08-15 | 贵阳万江航空机电有限公司 | Wiper blade and glass friction tester and testing method thereof |
| CN113820001B (en) * | 2021-10-12 | 2023-07-18 | 上海工程技术大学 | Experimental device for be used for testing windscreen wiper and wind window friction vibration noise |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766771A (en) * | 1995-03-01 | 1998-06-16 | Robert Bosch Gmbh | Elastomers having a friction-reducing coating |
| CN101762456A (en) * | 2009-12-25 | 2010-06-30 | 湖北钱潮汽车零部件有限公司 | Wiper brush piece kinematic friction coefficient simulation test device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100422690B1 (en) * | 2000-08-29 | 2004-03-12 | 현대자동차주식회사 | Friction factor measuring apparatus for wiper blade |
| JP2009160550A (en) * | 2008-01-09 | 2009-07-23 | Nippon Sheet Glass Co Ltd | Low-friction film-covered article, and its manufacturing method |
-
2010
- 2010-11-19 CN CN2010105507828A patent/CN102081036B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766771A (en) * | 1995-03-01 | 1998-06-16 | Robert Bosch Gmbh | Elastomers having a friction-reducing coating |
| CN101762456A (en) * | 2009-12-25 | 2010-06-30 | 湖北钱潮汽车零部件有限公司 | Wiper brush piece kinematic friction coefficient simulation test device |
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| CN102081036A (en) | 2011-06-01 |
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Granted publication date: 20120725 Termination date: 20211119 |