t腾达试验仪器厂：

　　摆式摩擦系数测定仪是一种测定路面，机场跑道，标线漆等摩擦系数的仪器。也可通过典型路面摩擦系数的测定，作为确定各种轮胎配方的依据之一。本仪器高度方便、操作简单，测试时对交通影响较外，数据也较稳定。且室内外均可使用。

　　Pendulum friction coefficient tester is an instrument for measuring friction coefficients of road surface,airport runway,marking paint and so on.It can also be used as a basis for determining various tire formulas through the measurement of typical road friction coefficients.The instrument is highly convenient and simple to operate.It has a relatively small impact on traffic during the test,and the data is more stable.And can be used indoors and outdoors.

　　摆式摩擦系数测定仪摆式仪是动力摆冲击型仪器。它是根据“摆的位能损失等于安装于摆臂末端橡胶片滑过路面过，克服路面等摩擦所做的功”这一基本原理研制而成的。

　　Pendulum friction coefficient measuring instrument Pendulum instrument is a dynamic pendulum impact type instrument.It is developed based on the basic principle of"the loss of positional energy of the pendulum is equal to the work done by the rubber piece installed at the end of the swing arm sliding over the road to overcome friction such as road surface".

　　摆式摩擦系数测定仪技术规格：

　　★摆动的力矩：615.000克毫米

　　★其中摆重量：1500±30克

　　★摆中矩：410±5毫米

　　★橡胶片对路面的瞭向静压力：2263克。

　　★摆自倾斜50处自由放下到摆动停止的次数，不少于70次。

　　★橡胶片外力缘距摆动中的距离508毫米。

　　★仪器总重约14公斤左右。

　　Technical specifications of pendulum friction coefficient tester:

　　★Swinging moment:615.000 grams mm

　　★Weight of pendulum:1500±30g

　　★Swinging moment:410±5 mm

　　★The static pressure of the rubber sheet on the road surface:2263 grams.

　　★The number of times the pendulum has been freely lowered from 50 places to the stop of the swing is not less than 70 times.

　　★The distance between the outer edge of the rubber sheet and the swing is 508 mm.

　　★The total weight of the instrument is about 14 kg.

　　摆式摩擦系数测定仪使用方法：

　　★选点：在测试路段上，沿行车方向的左轮迹，选择有代表性的五个测点，每测点相距约5-10米

　　★仪器调平：（1）将仪器测点上（标定方法见附录），并使摆的摆动方向与行车方向一致。（2）将摆向右运动，按下释放开关。使卡环进入释入开关槽，阈处于水平释放位置，然后松开释放开关，此时指针应被拔至紧靠拔针片。（3）按下释放开关摆向左运动，并时指针应指零。若不指零时，可稍旋紧或放松毛毡圈调节螺母。重复本项操作，直至指针指零。

　　★标定滑动长度：

　　用橡胶皮刷清除摆动范转围内路面上的松散颗粒和杂物。

　　让摆自山悬挂，在橡胶片的外力平行摆动方向设置标准尺（126毫米），放松坚固把手，转动升降把手。使摆缓缓下降，当滑溜块上橡胶片刚接触路面时，提起举升柄使滑溜块升高，将摆向右运动，并运动升降把手使摆下降一段距离，然后放下举升柄使摆慢慢向左运动，直至橡胶片的边缘刚刚接触路面，对正126毫米尺的一端。再用手提起举升柄，使滑溜块向上抬起，并使摆继续向左运动，放下举升柄，再将摆慢慢向右运动使橡胶片的边橡再一次接触路面。橡胶片两次同路面的接触点的距离应为126毫米后，旋紧紧固把手，再校正一遍，若滑动长度不符合标准时，则升高或降低仪器底座正面的调平螺丝来校正，但须调平水准泡。使滑动长度符合要求。尔后，将摆置于水平释放位置。

　　★测定：用水浇洒路面，并用橡皮刷刷刮，以便洗去泯浆，然后再洒水，并按下释放开关，使摆在路面上滑过，指针可指示出路面的摩擦系数值（一段A次可不作记录）。当摆向回摆时，用左手接住摆杆，右手提起举升枘使滑溜块升高，并将摆向右运动按下开关使摆卡环进入释放开关，并将摆针拨至紧靠拨针片，重复此项，测定五次（每次均应洒水），记录每次的数值。五次数值差不大于三个单位（刻度盘的一格半）如差值大于三个单位，应查产生的原因，并再次重复上述各项操作，至符合规定要求为止。

　　★测定结果：（1）每个测点用五次测定计数的平均值代表测点的摩擦系数值，并用五个测点的摩擦系数的平均值。代表该测定路段摩擦系数值。（2）测定读数，该度盘上指针的读数（简称“摆值”），除以100，为路面的摩擦系数。如：摆值33，摩擦系数即为0.33。

　　How to use the pendulum friction coefficient tester:

　　★Selection point:On the test section,along the left wheel track in the driving direction,select five representative measurement points,and each measurement point is about 5-10 meters apart.

　　★Instrument leveling:(1)Place the instrument on the measuring point(see the appendix for the calibration method),and make the swing direction of the pendulum consistent with the driving direction.(2)Move the pendulum to the right and press the release switch.Put the snap ring into the release switch slot,the threshold is in the horizontal release position,and then release the release switch.At this time,the pointer should be pulled close to the pin.(3)Press the release switch to move to the left,and the pointer should point to zero.If it is not zero,you can slightly tighten or loosen the felt ring adjustment nut.Repeat this operation until the pointer points to zero.

　　★Calibration slide length:

　　(1)Use a rubber brush to remove loose particles and debris on the pavement inside the swing van.

　　(2)Let the pendulum hang from the mountain,set a standard ruler(126 mm)in the direction of the parallel external swing of the rubber sheet,loosen the solid handle,and turn the lifting handle.Slowly lower the pendulum.When the rubber piece on the skid block has just touched the road,lift the lifting handle to raise the skid block,move the pendulum to the right,and move the lifting handle to lower the pendulum for a distance,then lower the lifting lever to make the pendulum Slowly move to the left until the edge of the rubber sheet just touches the road,aligning the end of the 126 mm ruler.Then use the hand to lift the lifting handle,so that the slippery block is lifted up,and the pendulum continues to move to the left.Lower the lifting handle,and then slowly move the pendulum to the right to make the rubber of the rubber piece touch the road again.After the distance between the contact point of the rubber sheet and the road surface is 126 mm,tighten the handle tightly and correct it again.If the sliding length does not meet the standard,raise or lower the leveling screw on the front of the instrument base to correct it,but The level must be leveled.Make the sliding length meet the requirements.After that,place it in the horizontal release position.

　　★Determination:Water the pavement with water,and scrape it with a rubber brush to wash away the mortar,then sprinkle the water,and press the release switch to make it slide on the road.The pointer can indicate the value of the road surface friction coefficient(a section A May not be recorded).When the pendulum swings back,catch the pendulum lever with your left hand,lift it with your right hand to raise the slippery block,and move the pendulum to the right to press the switch to enter the pendulum snap ring into the release switch,and turn the pendulum needle to Dial the needle,repeat this item,measure five times(each time should be sprinkled with water),and record the value of each time.The difference between the five times is not more than three units(one and a half of the scale).If the difference is more than three units,the cause should be checked,and the above operations should be repeated again until the requirements are met.

　　★Measurement results:(1)The average value of the five measurement counts at each measuring point represents the friction coefficient value of the measuring point,and the average value of the friction coefficient of the five measuring points is used.Represents the value of the coefficient of friction of the measured section.(2)Determine the reading.The reading of the pointer on the dial(referred to as"swing value"),divided by 100,is the friction coefficient of the road surface.For example:the swing value is 33,and the friction coefficient is 0.33.

　　摆式摩擦系数测定仪结构:

　　★底座：由T型腿，调平螺丝和水准泡组成。对仪器起调平，支承作用。

　　★立柱：同立柱、升降机构，导向杆及仪器把手组成。用于升降和固定摆头的位置。

　　★释放开关：安装于悬臂上的开关。用于保持摆杆水平位置和释放摆落下的作用。

　　摆头：由紧固把手，摆轴，转向节，轴承等组成，起联结摆、固定位置，保证在摆动平面内自由摆动的作用。

　　★示数系统，由指针、毛毡圈、法兰、紧固螺母及度盘组成，指针可直接指示出摩擦系数值。

　　★摆：由上、上部接头、摆杆、弹簧、杠杆系、举升柄、外壳、滑溜块及橡胶片组成。它对摆动中有规定力矩，对路面有规定压力，本身前与后，左与右的力矩平衡，它是度量路面的摩擦系数的尺度。

　　Structure of pendulum friction coefficient tester

　　★Base:It consists of T-shaped legs,leveling screws and level bubble.Level and support the instrument.

　　★Column:composed of the same column,lifting mechanism,guide rod and instrument handle.For lifting and fixing the position of the swing head.

　　★Release switch:a switch mounted on a cantilever.It is used to maintain the horizontal position of the swing bar and release the function of swinging down.

　　Swing head:It consists of a fastening handle,a swing shaft,a steering knuckle,and a bearing.It plays a role of connecting the pendulum and fixed position to ensure free swing in the swing plane.

　　★The indicator system is composed of pointer,felt ring,flange,fastening nut and dial.The pointer can directly indicate the value of friction coefficient.

　　★Swing:It consists of upper and upper joints,swing lever,spring,lever system,lifting handle,shell,slippery block and rubber sheet.It has a prescribed torque in the swing and a prescribed pressure on the road surface.The front and back,left and right moments are balanced.It is a measure of the friction coefficient of the road surface.