干筛法土工布有效孔径测定仪概述： 

该仪器适用于干筛原理测定单层土工布及其有关产品特征孔径的方法，土工布有效孔径测定仪适用于所有类型的土工布产品。

Overview of dry sieve geotextile effective aperture tester:

This instrument is suitable for the method of measuring the characteristic aperture of single-layer geotextiles and related products on the principle of dry sieve. The effective aperture measuring instrument of geotextiles is applicable to all types of geotextile products.

干筛法土工布有效孔径测定仪符合标准：

GB/T 14799, ASTM D4751, JTG E50 T1144, SL/T 235-1999等。 

Dry sieve geotextile effective aperture tester meets standards:

GB / T 14799, ASTM D4751, JTG E50 T1144, SL / T 235-1999, etc.

干筛法土工布有效孔径测定仪主要技术规范: 

★筛子直径：200mm 

★筛子叠高：400mm 

★筛座振幅：8mm 

★筛摇动次数：221次/分 

★振击次数：147次/分 

★回转半径：12.5mm 

★功率：0.37千瓦 

★外型尺寸：600x400x880mm 

★总重量：130公斤 

Main technical specifications of dry sieve geotextile effective aperture tester:

★ Sieve diameter: 200mm

★ Sieve stack height: 400mm

★ Sieve base amplitude: 8mm

★ Sieve shaking frequency: 221 times / minute

★ Vibration times: 147 times / minute

★ Turning radius: 12.5mm

★ Power: 0.37 kW

★ External dimensions: 600x400x880mm

★ Total weight: 130 kg

干筛法土工布有效孔径测定仪主要有机座、上盖、回转机构、振击机构、夹紧机构与套筛组成，主要结构说明如下。 

回转机构        

电动机（1A）与离合体（146A）转动轴套（14**）一得齿轮（13**）通过齿轮（152A）而带动齿轮轴（137A）上的小斜齿轮（141A）转动，小斜齿轮带动大斜齿轮（97A）使以键与之连接的空心的主偏心轴（74A）旋转，从而带动以120度均布与上盖（3A）上的三个副偏心轴（1**）回转，使整个活动架得到半径等于偏心距正圆平面摇动。 

振击机构 

在活动架得到正圆平面摇动的时候，通过以螺钉与之固连的主偏心上盖（70A）带动打击轴（109A）回转，使打击轴上的上端面凸轮（0**）转动，同时齿轮由（137A）上的齿轮（164A）通过齿轮（157A）（159A）带动齿轮轴100下端面凸轮（107A）慢速旋转，上下端面凸轮同向转动产生轴向位移造成打击轴往上顶起，直到上下平面凸轮缺口处**往下掉而得到振击运动。压缩弹簧（78A）的作用是增强打击力量之用。 

加紧结构     

旋转扭紧螺栓（5**）可使退拨落螺母（54A）高轴向运动，使筛盖固定顶杆（47A）往外伸长从而顶死筛盖倒杆达到固定筛盖的目的。 

润滑系统 

本结构润滑简单，轴承全部用润滑脂——黄油润滑，而齿轮和偏心轴与主（付）偏心轴的润滑都是飞溅润滑。注：油咀（20A）可在付偏心出加机油，每班必须加机油一次，以防飞溅不到。主机必须加机油10kg,如缺润滑油，润滑系统出现故障，本厂概不负责。 

自动停车装置

电源开关接通后，用定时器通过中间继电器控制电动机长期运转或定时运转，停止运转。为了保证安全工作，本机点击托盘装有接地线螺钉，用户必须按规程接地。 

The dry sieve method for measuring the effective aperture of geotextiles is mainly composed of a machine base, an upper cover, a slewing mechanism, a vibrating mechanism, a clamping mechanism and a sleeve screen. The main structure is described below.

Slewing mechanism

The motor (1A) and the clutch body (146A) rotate the shaft sleeve (14 **), and the gear (13 **) drives the small helical gear (141A) on the gear shaft (137A) to rotate through the gear (152A). The gear drives the large helical gear (97A) to rotate the hollow main eccentric shaft (74A) connected by the key, thereby driving the three auxiliary eccentric shafts (1 **) evenly distributed on the upper cover (3A) at 120 degrees. Rotate to make the entire movable frame shake with a radius equal to the eccentricity from the perfect circular plane.

Vibration mechanism

When the movable frame is shaken by a perfect circular plane, the main eccentric upper cover (70A) connected with the screw drives the striking shaft (109A) to rotate, so that the upper end cam (0 **) on the striking shaft rotates, and The gear is driven by the gear (164A) on (137A) through the gear (157A) (159A) to drive the lower end cam (107A) of the gear shaft 100 to rotate slowly. The upper and lower end cams rotate in the same direction to generate axial displacement, which causes the striking shaft to rise upward. , Until the upper and lower flat cam notches ** fall down and get the percussion motion. The role of the compression spring (78A) is to increase the strike force.

Tightening structure

Rotating and tightening the bolt (5 **) can make the high-axle movement of the pull-down nut (54A), so that the fixed cover (47A) of the sieve cover is extended outward, so that the inverted cover of the sieve cover is fixed.

Lubrication system

This structure is simple in lubrication. All bearings are lubricated with grease-butter, while the lubrication of gears, eccentric shafts and main (sub) eccentric shafts are all splash lubrication. Note: The oil nozzle (20A) can be used to add oil at the eccentric position. You must add oil once per shift to prevent splashing. The main engine must be filled with 10kg of oil. Our factory will not be responsible for any failure of the lubrication system or lubrication system.

Automatic parking device

After the power switch is turned on, the timer is used to control the motor for long-term operation or timing operation through the intermediate relay to stop the operation. In order to ensure safe work, the click tray of this machine is equipped with a ground wire screw, and the user must ground according to the regulations.

干筛法土工布有效孔径测定仪安装： 

可以不用水泥基础，直接安放水泥地面上开动，也可以安装在水泥基础上，基础螺钉尺寸如图，其厚度300mm,基础露地面高度及大小或与地面相平，根据具体使用需要而定，按电工规程安装电路与接地，安装完毕，接通电源后电动机回转方向与箭头相同。**有振击运动，若相反，则电机空运转，此时可换接头线，才能正常开动。 

使用和保养： 

开机前，拧出（15**）上螺塞，加足润滑油至螺孔面，装套筛时先将扭紧螺栓（5**）左旋以松开筛盖固定顶杆（47A）然后连同筛盖（43A）往上提，然后右旋固定可置套筛托盘（62A）上在将扭紧螺栓左右松开往下压并右旋之使固定紧即可工作。根据工作需要，时间任意设置，需要中途停机，应切断电源开关。此仪器保养简单，每隔3-6个月更换垫子出一次，使用时注意避免盖板上的七根倒杆的变形。 

结束注意：

必须注意防潮，防腐蚀，使用两年左右需清洗加油一次。

Installation of dry sieve geotextile effective aperture tester

It can be installed directly on the cement floor without using the cement foundation, or it can be installed on the cement foundation. The size of the foundation screw is shown in the figure, its thickness is 300mm, the height and size of the foundation exposed on the ground or the level is flat. The electrician regulations install the circuit and ground. After installation, the direction of rotation of the motor is the same as the arrow after the power is turned on. ** There is vibration motion. If it is the opposite, the motor runs dry. At this time, you can change the connector line to start normally.

Operation and maintenance of dry sieve geotextile effective aperture tester

Before starting the machine, unscrew the upper plug (15 **) and add enough oil to the surface of the screw hole. When installing the screen, turn the tightening bolt (5 **) to the left to loosen the screen cover and fix the top post (47A). Lift up the sieve cover (43A), then turn the fixed set screen tray (62A) to the right, loosen the tightening bolts left and right, press down, and turn the right to make the fixing work. The time can be set arbitrarily according to the needs of the work, and the power switch should be turned off if it needs to be stopped halfway. This instrument is easy to maintain. Replace the mat every 3-6 months. When using it, be careful to avoid deformation of the seven inverted bars on the cover.

End of dry sieve geotextile effective aperture tester

Must pay attention to moisture and corrosion, you need to clean and refuel once in about two years.