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卷扬启闭机的安装要求


发布时间:2019-06-05
卷扬启闭机由机架、电动机、制动器、加速器、联轴器、调速器、卷筒安装、均衡滑轮组、钢丝绳、吊具和主令控制器、高度指示器、负荷控制器等组成。1、 经过制动轮联轴器等与加速器的高速轴联接,加速器的低速轴上装有开式小齿轮,和与卷筒联接在一同的开式大齿轮啮合,卷筒轴爲心轴,两端固定支承在轴承座上。2、起吊用的钢丝绳,穿过动滑轮、均衡滑轮,中间辨别用压板固定在卷筒左右螺旋槽的端部。动滑轮吊板下部与闸门吊耳联合,当电动机正反运转时,卷筒随着转动,钢丝绳在螺旋槽内收进或放出,使闸门失掉启闭。3、爲了使闸门在恣意高度中止,在制动轮联轴器处装有 制动器。爲了避免疾速下降过速,在加速机的高速悬臂轴上,装有调速器。另外,装有带主令控制器,装有压力传感器的荷重指示安装,二次仪表均装在电气控制柜上,以上组成了闸门开度控制和荷重指示,同时也作爲高度极限维护和过载维护用。4、在加速机的慢速轴上用小齿轮。5、吊具:由两拉板将销轴与动滑轮衔接组成,经过销轴拔出闸门吊耳与之衔接。6、光滑:本机采用分散式干油光滑,在各个轴承处装有旋盖式油杯或压注式油杯,试车前务必逐一加足光滑油。启闭机的整个组成局部,均装置在钢构造的焊接机架上,机架以根底螺钉固定在混凝土的根底上。二、包装、搬运和储存启闭机包装应契合JJ17-83《修建机械包装通用技术条件》的规则,运输应契合铁路、公路交通运输的有关规则。在搬运、保管进程中应防锈、防碰撞、防变形。电控设备的包装与运输应契合JB3084-82《电力传动控制站的产品包装与运输规程》的规则。产品不宜露天裸放,须裸放时也应将电动机、制动器、开关仪表、电控柜等电气设备和电缆、钢丝绳等寄存仓库。其主机设备应有防雨、防潮、防锈、防风沙等措施。产品临时寄存时,每隔一年应清洗一次,并涂防锈漆。卷扬启闭机三、装置1、 装置前的预备装置前应对一切部件停止细心反省,经反省合格后,方可停止装置。若发现有运输进程中惹起的损坏,应在装置前予以修复;同时应反省加速器、制动器和各转动轴承处的光滑状况,必要时重新注油。2、装置(1) 反省启闭机平台高程,其偏向不应超越±5mm ,程度偏向应不大于0.5L/1000(L爲测量长度)。 (2) 零件按起吊中心线找正,其纵、横向中心线偏向不应超越±3mm。(3) 现场装置的联轴器,按编号、标志找正,确认无误后衔接。(4) 缠绕在卷筒上的钢丝绳长度,当吊点在下极限时,留在卷筒上的圈数不少于4.5圈;当吊点在上极限时,钢丝绳不得缠绕到卷筒光圈局部。(5)反省离心式调速器制动面的间隙和弹簧紧缩间隙,其值能否契合要求,间隙能否平均。飞球分量能否精确,并作下记载。(6)、装置后应有防雨、防锈、防风沙等措施。四、试运转1、电气设备的实验要求(1) 接电实验前应仔细反省全部接线并契合图样规则,整个线 路的绝缘电阻必需大于0.5M才开端接电实验。实验应采用该机本身的电气设备。实验中,启闭机电源的电压损失不得超越15%,各电动机和电气元件温升不超越各自的允许值,若有触头号元件炙烤者应予改换。(2)电气回路中的单个元件和设备均应停止调试,一切动力回路、操作回路和照明回路的接线应正确、划一,其绝缘电阻不应小于技术标准规则值。(3)不带电动机状况下,对操作回路停止模仿举措实验,其举措应正确牢靠。(4)对两电动机,其转动方向应辨别通电,看能否正确。五、无负荷实验无负荷实验共上下全行程往复三次,反省并调整下列电气和机械局部:(1)电动机运转应颠簸,三相电流不均衡度不超越±10%,并测出电流值。(2)电气设备应无异常发热景象。(3)反省和调试限位开关(包括充程度压开度节点),使其举措精确牢靠。(4)主令控制和荷重指示精确反映极限地位和分量,抵达上、下极限地位时,主令开关能收回信号并自自动切断电源,使启闭机中止运转。(5)一切机械部件运转时,均不应有冲击声;钢丝绳在任何部位,均不得与其它部件相摩擦。(6)制动闸瓦松闸时应全部翻开,间隙应契合要求,并测出松闸电流值。六、静负荷实验将闸门在门槽内无水或静水中正常升降三次。反省下列电气和机械局部:(1)电动机运转应颠簸,三相电流不均衡度不超越±10%,并测出电流值。 (2)电气设备应无异常发热景象。(3)一切维护安装和信号应精确牢靠。(4)一切机械部件在运转中不应有冲击声,开放齿轮啮合工况应契合要求。(5)制动器应无打滑、无焦味和冒烟景象。(6)荷重指示器的读数能精确反映闸门在不同开度下的启闭力值,误差不得超越±5%。(7)疾速闭门工夫不得超越设计允许值;疾速闭门的*速度不得超越4.2m/min;电动机、调速器的*转速不得超越电动机额外转速的两倍;离心式调速器的摩擦面,其*温度不得超越200 C。七、动负荷试运转:先将闸门在静水(或无水)状况下,疾速封闭三次,反省合格后,在设计水头动水和机组导叶开度100%甩负荷工况下,停止全行程的动负荷动水疾速封闭实验。标签:卷扬启闭机 卷扬启闭机厂家 钢制闸门 铸铁闸门链接:www.jyqbj.comThe hoisting hoist consists of frame, motor, brake, reducer, coupling, governor, drum device, balance pulley set, steel rope, hanger and master controller, height indicator, load controller, etc. 1. Connect with the high speed shaft of the reducer through the brake wheel coupling, etc. The low speed shaft of the reducer is equipped with open pinion, and engages with the large open gear connected with the drum. The drum shaft is a mandrel, and both ends are fixed on the bearing seat. 2. The lifting wire rope passes through the movable pulley and the balancing pulley, and the two ends are fixed at the end of the spiral groove on the left and right sides of the drum with a pressure plate. The lower part of the movable pulley suspension plate is combined with the gate lifting lug. When the motor is in positive and negative operation, the drum rotates, and the steel wire rope is put in or out of the spiral groove, which causes the gate to lose its opening and closing. 3. In order to stop the gate at arbitrary height, a brake is installed at the brake wheel coupling. In order to prevent rapid descent and overspeed, a speed governor is installed on the high-speed cantilever shaft of the reducer. In addition, it is equipped with a master controller, a load indication device with pressure sensor, and secondary instruments are all installed in the electrical control cabinet. The above constitute the gate opening control and load indication, which are also used for height limit maintenance and overload maintenance. 4. Use pinion gear on the slow shaft of reducer. 5. Lifting gear: It is composed of two pulling plates that connect the pin shaft with the dynamic pulley, and then pull out the gate lifting lug through the pin shaft to connect with it. 6. Lubrication: The machine is lubricated with dispersed dry oil, and each bearing is equipped with a cap-type oil cup or a pressure-injected oil cup. It is necessary to add enough lubricating oil one by one before commissioning. The whole part of the hoist is installed on the welded frame of steel structure, which is fixed on the basis of concrete with foundation screw. 2. Packaging, handling and storage of hoist packages shall conform to the rules of JJ17-83 "General Technical Conditions for Packaging Construction Machinery", and transportation shall conform to the relevant rules of railway and highway transportation. In the process of handling and storage, it should be rust-proof, collision-proof and deformation-proof. Packaging and transportation of electronic control equipment should conform to the rules of JB3084-82 "Code for Packaging and Transportation of Products in Electric Drive Control Station". Products should not be exposed in the open air. Electrical equipment such as motors, brakes, switchgear, electronic control cabinets, cables and wire ropes should also be stored in warehouses when exposed. Its main equipment should be rain-proof, moisture-proof, rust-proof, sand-proof and other measures. When the product is temporarily stored, it should be cleaned every other year and coated with anti-rust paint. Hoist hoist 3, installation 1, preparation before installation, all parts should be stopped carefully before installation, after reflection qualified, can stop installation. If the damage caused by transportation process is found, it should be repaired before installation. At the same time, the lubrication of reducer, brake and rotating bearings should be reflected, and oil should be reinjected if necessary. 2. Installation (1) Reflecting on the elevation of hoist platform, the inclination should not exceed (+5mm), and the horizontal inclination should not exceed 0.5L/1000 (L is the measuring length). (2) The parts should be aligned according to the center line of hoisting, and the tendency of the vertical and horizontal center lines should not exceed (+3 mm). (3) The coupling installed on site shall be aligned according to the number and logo, and shall be connected after confirmation. (4) The length of the wire rope wound on the drum shall not be less than 4.5 circles left on the drum when the hanging point is at the lower limit; and the wire rope shall not be wound on the drum aperture when the hanging point is at the upper limit. (5) Reflect on the clearance of brake surface and spring tightening clearance of centrifugal governor, whether the value can meet the requirements and whether the clearance can be uniform. Whether the weight of the flying ball can be accurately recorded. (6) Rainproof, rust-proof and sand-proof measures shall be taken after installation. 4. Trial operation 1. Test requirements for electrical equipment (1) Before the test, careful reflection should be made on all wiring and conform to the pattern rules. The insulation resistance of the whole line must be greater than 0.5M_before the end of the test. The electrical equipment of the machine itself should be used in the experiment. In the experiment, the voltage loss of the power supply of the starter and shutter should not exceed 15%, and the temperature rise of the motor and electrical components should not exceed their allowable values. If there are contact number components, the roaster should be replaced. (2) The debugging of individual components and equipment in the electrical circuit should be stopped. The wiring of all power circuit, operation circuit and lighting circuit should be correct and uniform, and their insulation resistance should not be less than the value of technical specifications. (3) In the case of no motor, the simulation experiment of the operation loop termination should be correct and reliable. (4) For two motors, the direction of rotation should be distinguished between electrification to see if it is correct. 5. Load-free experiment has three full trips. Reflect and adjust the following electrical and mechanical parts: (1) Motor operation should be bumpy, and the unbalance of three-phase current should not exceed (+10%) and measure the current value. (2) There should be no abnormal fever in electrical equipment. (3) Reflect and debug the limit switch (including the filling and horizontal pressure opening node) to make its action accurate and reliable. (4) The command control and load indication accurately reflect the limit position and weight. When reaching the upper and lower limit positions, the command switch can send out signals and automatically cut off the power supply to stop the operation of the hoist. (5) When all mechanical parts are running, there should be no impact noise; the wire rope should not be rubbed against other parts in any part. (6) When the brake shoe is loosened, all the brake shoe should be turned over, the clearance should meet the requirements, and the current value of the loosening brake shoe should be measured. 6. Static load test: The gate is lifted and lowered normally three times in the groove without water or in the still water. Reflections on the following electrical and mechanical parts: (1) Motor operation should be bumpy, three-phase current is not.
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