资源描述
外文资料Bucket elevatorBucket type lifting machine is a fixed device of mechanical conveying equipment, mainly used in powdery, granular and small block materials for vertical lifting, can be widely used in various size of feed mill, flour mill, rice mill, refineries, starch factory and grain depot, port and dock bulk material.Bucket elevator for vertical lifting through the crusher limestone, coal, gypsum, clinker, dry clay block granular material as well as raw material, cement, coal and other powder materials. According to the different speed of hopper, the bucket elevator can be divided into three types: centrifugal discharge, gravity discharge and mixed type discharge. Centrifugal type unloading material bucket speed faster, for conveying powdery, granular and small shape grinding material cut small; gravity discharge material slow speed of the bucket for bulk transport, the proportion of larger, grinding Zhuo materials, such as limestone, clinker, etc. The traction component of the bucket elevator has several kinds of chain, plate chain and adhesive tape. Ring chain structure and manufacture of relatively simple, is also very strong connection with the hopper, conveyor mill Zhuo of material, wear a small chain, but the larger self. Chain plate structure of a solid, lighter weight, applicable to a large quantity of hoist lifting, but articulated joint is easy to wear out, the tape has the advantages of simple structure, but not suitable conveyor mill cut large materials, the ordinary belt material temperature does not exceed 60 DEG C, steel cord belt clip allows the temperature of the material up to 80 DEG C, heat-resistant tape allows material temperature of 120 DEG C, ring chain, plate chain conveying material temperature of up to 250 DEG.Scope of applicationThis series bucket elevator is suitable for conveying powdery, granular and small shape of grinding Zhuo and grinding Zhuo small materials, such as coal, cement, stone, sand, clay, iron ore and other, because the elevator traction mechanism is a circular chain, thus allowing transport of high temperature materials (material temperature of not more than 250 DEG C). General conveying height up to 40 meters.functionThe lifting equipment with large conveying capacity, high lifting height, stable and reliable operation, long life advantages, its main properties and parameters with the vertical bucket type lifting machine (jb3926-85) (the standard equivalent with reference to the international standards and foreign advanced standards), ring chain traction with the mining high strength ring chain MT36-80, the lifting machine is suitable for conveying powder, thus allowing higher temperature of the material conveying.characteristicDriving powerDrive power is small, the inflow type feeding, induction type unloading material, large capacity hopper intensive layout. The material lifting almost no feed back and dig material phenomenon and is therefore invalid less power.Lifting rangeLifting range, this type of hoist the kinds of materials, performance requirements, not only can improve the general powdery, granular materials and improve grinding Zhuo of larger material. Good sealing performance and environmental pollution.Operation abilityGood operating reliability, advanced design principles and processing methods to ensure the reliability of the whole operation, no failure time more than 20 thousand hours. The lifting height is high, and the lifting machine runs stably, so the height of the lifting height can be achieved.service lifeThe use of long life, enhance the feeding machine to take into the type, without the need to use a bucket material, material rarely occur extrusion and collision phenomenon. This machine in the design to ensure the materials in the feeding and unloading is less scattered, reduces the mechanical wear.working principleHopper to material from below the storage scooping up, along the conveyor belt or chain ascension to the top, bypassing the top wheel turned downward, bucket hoist material poured into the receiving groove. Belt conveyor belt conveyor belt generally used rubber belt, installed in the bottom or above the driving drum and the upper and lower on the roller. Chain drive bucket elevator is generally equipped with two parallel transmission chain, on or below a pair of transmission chain wheel, or above is a pair of wheel. Bucket elevator is generally equipped with a chassis, in order to prevent the dust in the bucket elevator.structureAirplane partsThe upper casing, shaft parts, reducer, coupling and motor assembled together.Middle casingAccording to the height of lifting, configured with different number of middle casing combined is able to meet the needs of.Lower partBy the bottom casing, driven shaft parts and tensioning device to form a whole. The side door of the cabinet can be opened, and the inner side of the casing can be checked for cleaning.Chain and hopperThe chain chain for steel welding. The hopper is fixed on the joint of the chain. Different height of the bucket lift machine is set the corresponding number of chains, connectors, and hopper.multi-functionMulti function hoist is a kind of electric hoist can be used in the ground and air. It is widely used in the construction industry. It has large conveying capacity, high altitude, stable and reliable operation. Multifunctional electric hoist rated lifting weight of 500 kg / 300 kilograms, multi-functional electric hoist the maximum lifting height of 100 meters, multifunctional electric lifting machine 500 kilograms improve (run) speed 5.5m/min; 300 kilograms of ascension (run) speed 8m / min,Rated up to 500KG, 300KG;The maximum lifting height: 100MThe lifting speed is: 5.5M/MIN, 8M/MIN;Motor power is not as follows: 1.5kw, 1KW, 1.5KW, 0.4KW;The use of power supply: single phase and three-phase two.Classification of multi function elevator:Multi function lifting machine is divided into DTS-30 multi-function elevator and DTS-50 multi function DTS50-80-A, DTS50-80-B, DTS30-80-A, DTS30-80-BOther varietiesHL type ring chain machineThe HL type ring chain centrifugal bucket elevator is composed of a moving part (a hopper and a traction chain), an upper section with a transmission chain wheel, a lower section with a tension wheel, a middle casing and a driving device.Installation and maintenanceMachine maintenance is a very important regular work, it should work closely with the operation and maintenance, and should have full-time personnel on duty check.BearingAll the load bearing 1. Crusher assume a machine, so good lubrication on bearing life have great relationship. It directly affects the machine life and the operation rate, therefore require the injection of a lubricating oil must be clean, seal must be in good condition and main oiling the machine of a rotating bearing, roller bearing the all gear and bearing, sliding plane.2 the installation of the new tyre must be examined often prone to loose.3 pay attention to the work of each part of the machine is normal.4 pay attention to check the wear degree of easy to wear parts, always pay attention to replace worn parts.5. The plane of the bottom of movable device, should go out dust and other matter lest machine can not meet the broken material bearing activities can not on the underframe mobile, resulting in serious accidents.6 increase the bearing oil temperature, should stop and check the reason to be eliminated.7 when the rotation of the gear in operation if there is an impact sound should be immediately stopped to check and eliminate.Installation commissioning1 the equipment should be installed in the level of concrete foundation, fixed with anchor bolts.2 attention should be paid to the installation of the vertical and horizontal.3 after installation, check the various parts of bolt loosening and fastening the host whether the door please fasten.4 power line and control switch according to the power of equipment.5 inspection is completed, the empty load test, the normal test can be carried out.Safety regulation1 the hoisting machine is maintained and managed by the designated personnel. The key of the power switch box is managed by the designated personnel.2. Improve the machine must have a hoisting limiter and a stroke limiter, limiter should make the pulley in ascension to distance the drum or pulley 300mm before can automatically stop. Action sensitive and reliable, and carry out test.3 hoist should have the maximum load mark, in the lifting, the weight of the landing is not overload (1T).4 after power, check the hoisting limiter, stroke limiter, interlock switch safety device5 lifting, before landing, alarm warning, can drive.6 lifting machines will not allow manned on the next.7 after the work is finished, the hoisting machine hanging plate should be born, and then cut off the power supply, close up and down the fence door.8 to maintain the health of the surrounding environment.matters needing attention1 empty load driving. So every time before the machine should be discharged in all the hopper of the material, and then stop.2 can not be reversed. Reverse the chain derailment that may occur, to eliminate the trouble of derailment.3 uniform feeding. The sudden increase of the volume of feed ban. The feeding amount can not exceed the capacity of lifting and conveying machine. Otherwise, it is easy to cause the bottom of the accumulation of serious stuffy car accident.4 timely and proper amount of lubricating oil.5 the chain and the hopper should be replaced in a timely manner when severe wear or damage.fault analysisfaultTo enhance the head wheel and the bottom wheel shaft mounting is not likely to cause the hopper belt deviation, main forms: the head wheel and the bottom wheel transmission shaft in the same vertical plane and is not parallel; two driving shafts are installed in a horizontal position and in the same vertical plane; the two transmission axis parallel and in the same vertical plane and horizontal. Such a situation, the hopper belt deviation, easy to cause the hopper and barrel hit, hopper with tear. In addition, the head of the hoist can bear large dynamic pressure, the maximum amount of up to 100 tons, due to the long operation of the inevitable in the bearing wear.Traditional methods to repair welding or brush plating machine repair, but both of them are some drawbacks: repair welding of high temperature of the thermal stress can not be completely eliminated, easy to cause material injury, leading to bend or break components; and brush plating coating thickness, is easy to peel and the above two methods are with repair of metal metal, can not change the hard to hard with the relationship between, in under the influence of the force, still caused by wear again.In view of the above problems, the main use of the United States and Europe is the polymer composite material repair method, which is the most mature application of the United States is the worlds blue technology. Polymer material has strong adhesion, excellent comprehensive mechanical properties, can remove free machining. Both gradated welding thermal stress effects, repair thickness is not restricted, and products with the metal material does not have the deformability, absorption increased the impact of machine vibration, avoid wear again possible, and greatly extend the service life of the parts of the equipment, for the enterprise to save a large amount of downtime, create enormous economic value.Analysis solution1 the lifting machine operation occurs when the abnormal sound(1) bucket type lifting machine base plate and bucket chain collision, adjust the elastic device, the chain tensioner.(2) the drive shaft and the driven shaft key relaxation, sprocket displacement, chain bucket and shell collision. Adjust the sprocket position, the key parts of.(3) the guide plate and the bucket collide, dressing guide plate position.(4) the guide plate and the bucket are clamped between the material base material, enlarge investment angle.(5) bearing failure, can not be flexible operation, should replace the bearing.(6) block or other foreign bodies in a lock shell, stop the removal of foreign body.(7) the teeth of the sprocket (drive, driven sprocket) is not correct, to modify the sprocket tooth profile or the replacement of sprocket.(8) the transmission chain wheel and the chain gear tooth is bad, the modification transmission sprocket tooth profile.(9) the transmission chain slippage, adjust the length of the chain.(10) the chassis mounting is not adjusted, the verticality of casing length.2 elevator motor base vibration(1) the motor itself is poor, and the rotor is removed to check the static balance.(2) reducer and motor installation accuracy is poor, in excess of norms, to re adjust.(3) the installation accuracy of the motor base is not enough, the level of more than the standard requirements, to re adjust.(4) the installation of the transmission chain wheel error, need to re adjust.(5) the transmission sprocket teeth are bad, need to carry out the modification of tooth form.(6) the tightness of the transmission chain wheel is not proper, and should be adjusted again.3 lifting machine leakage(1) the full length of the shell flange sealing gasket damage or leakage, replacement of the new pad, apply sealant, re tighten the flange bolts.(2) the material discharge from the nose, the base gap to increase the sealing pad or sealant.(3) input material height is too large, increasing the feed pressure, need to change the material input method, increase the feed buffer device.4 lifting capacity is not up to the design capacity(1) material bonded in the bucket and chute, according to the degree of bonding, periodic removal of material.(2) in the front of the machine, the capacity of the machine is insufficient, which causes the material to be dropped, so that the elevator can not reach the design capacity, and it is necessary to improve the production capacity of the machine,(3) lifting speed is slow, need to change the speed ratio of the driving chain wheel.(4) improper measurement methods, or measurement errors, check the metering device, check the proportion of materials, re revised calculation method.5 lifting machine material discharge is insufficient(1) the rear hoist machinery and equipment capacity is small, the discharge chute plug, improve the rear of the machinery and equipment production capacity.(2) the discharge valve is too small or the angle of the valve is not suitable for the correction, discharge chute.(3) the material in the bucket and the valve adhesion, regular removal of materials.中文翻译斗式提升机斗式提升机，是一种固定装置的机械输送设备，主要适用于粉状、颗粒状及小块物料的连续垂直提升，可广泛应用于各种规模的饲料厂、面粉厂、米厂、油厂、淀粉厂以及粮库、港口码头等的散装物料的提升。斗式提升机用来垂直提升经过破碎机的石灰石、煤、石膏、熟料、干粘土等块粒状物料以及生料、水泥、煤粉等粉状物料。根据料斗运行速度的快慢不同，斗式提升机可分为：离心式卸料、重力式卸料和混合式卸料等三种形式。离心式卸料的斗速较快，适用于输送粉状、粒状、小块状等磨琢性小的物料；重力式卸料的斗速较慢，适用于输送块状的，比重较大的，磨琢性大的物料，如石灰石、熟料等。斗式提升机的牵引构件有环链、板链和胶带等几种。环链的结构和制造比较简单，与料斗的连接也很牢固，输送磨琢性大的物料时，链条的磨损较小，但其自重较大。板链结构比较牢固，自重较轻，适用于提升量大的提升机，但铰接接头易被磨损，胶带的结构比较简单，但不适宜输送磨琢性大的物料，普通胶带物料温度不超过60，夹钢绳胶带允许物料温度达80，耐热胶带允许物料温度达120，环链、板链输送物料的温度可达250。适用范围本系列斗式提升机适于输送粉状，粒状及小块状的无磨琢性及磨琢性小的物料，如：煤、水泥、石块、砂、粘土、矿石等，由于提升机的牵引机构是环行链条，因此允许输送温度较高的材料(物料温度不超过250)。一般输送高度最高可达40米。功能该类提升设备具有输送量大，提升高度高，运行平稳可靠，寿命长显著优点，其主要性能及参数符合垂直斗式提升机（JB3926-85）（该标准等效参照了国际标准和国外先进标准），牵引圆环链符合矿用高强度圆环链（MT36-80），本提升机适于输送粉状，因此允许输送温度较高的材料。特点驱动功率驱动功率小，采用流入式喂料、诱导式卸料、大容量的料斗密集型布置.在物料提升时几乎无回料和挖料现象，因此无效功率少。提升范围提升范围广，这类提升机对物料的种类、特性要求少，不但能提升一般粉状、小颗粒状物料，而且可提升磨琢性较大的物料.密封性好，环境污染少。运行能力运行可靠性好，先进的设计原理和加工方法，保证了整机运行的可靠性，无故障时间超过2万小时。提升高度高.提升机运行平稳，因此可达到较高的提升高度。使用寿命使用寿命长，提升机的喂料采取流入式，无需用斗挖料，材料之间很少发生挤压和碰撞现象。本机在设计时保证物料在喂料、卸料时少有撒落，减少了机械磨损。工作原理料斗把物料从下面的储藏中舀起，随着输送带或链提升到顶部，绕过顶轮后向下翻转，斗式提升机将物料倾入接受槽内。带传动的斗式提升机的传动带一般采用橡胶带，装在下或上面的传动滚筒和上下面的改向滚筒上。链传动的斗式提升机一般装有两条平行的传动链，上或下面有一对传动链轮，下或上面是一对改向链轮。斗式提升机一般都装有机壳，以防止斗式提升机中粉尘飞扬。结构机首部件由上部机壳，主动轴部件，减速机、连轴器、电机等组装成一体。中部机壳根据需要提升的高度、配置不同数量的中部机壳迭加起来既能满足需要。下部部件由底部机壳，从动轴部件及张紧装置结成一体。机壳侧面有门可以打开，对其内部进行检查如清扫。链条及料斗链条为圆钢焊接环链。料斗用螺母定在链条的接头上。不同高度的斗提机现套相应数量的链条、接头、及料斗。多功能多功能提升机是电动葫芦的一种可用于地面和空中使用.广泛用于建筑行业.，具有输送量大，提升高度高，运行平稳可靠。多功能电动提升机额定提升重量为500公斤/300公斤，多功能电动提升机的最大提升高度为100米，多功能电动提升机500公斤提升（运行）速度5.5m/min；300公斤提升（运行）速度8m/min，额定起重量为500KG，300KG；最大提升高度为：100M提升速度为：5.5M/MIN，8M/MIN；电机功率为别为：1.5kw，1KW，1.5KW，0.4KW；使用电源为：单相和三相两种。多功能提升机分类：多功能提升机分为DTS-30多功能提升机和DTS-50多功能提升机 DTS50-80-A，DTS50-80-B，DTS30-80-A，DTS30-80-B 其他品种HL型环链机HL型环链离心斗式提升机，由运动部分（料斗与牵引链条）、带有传动链轮的上部区段、带有拉紧轮的下部区段、中间机壳、驱动装置、逆止制动装置等组成。本提升机的料斗为间断式布置，利用“掏取法”进行装载，“离心投料法”卸料。本提升机的牵引机构是两根环形链条。TH系列斗式提升机工作原理：TH系列斗式提升机适用于输送粉状、粒状及小块状的无磨琢及磨琢性小的物料。TH型是一种圆环链斗式提升机采用混合式或重力卸料，挖取式装料。牵引件用优质合金钢高度圆环链。中部机壳分单、双通道两种形式为机内重锤箱恒力自动张紧。链轮采用可换轮缘组合式结构。使用寿命长，轮缘更换工作简便。下部采用重力自动张紧装置，能保持恒定的张紧力，避免打滑或脱链，同时料斗遇到偶然因素引起的卡壳现象时有一定的容让性，能够有效地保护下部轴等部件。该斗式提升机适用于输送堆积密度小于1.5t/m3易于掏取的粉状、粒状、小块状的底磨琢性物料。如煤、水泥、碎石、砂子、化肥、粮食等。TH型斗式提升机用于各种散状物料的垂直输送。适用于输送粉状、粒状、小块状物料，物料温度在250以下。NE系列板链机NE系列板链式斗式提升机本机系流入式喂料，物料流入料斗内靠板链提升到顶端，在物料重力作用下自行卸料。本系列提升机规格多（NE15NE800共11种）提升量广；且生产能高，能耗较低，可逐步代替其他类型提升机，其主要参数见下表。该机采用全封式机壳链速低，几乎无回料现象，因此无功功率损耗少，噪声低，寿命长。DZC振动机DZC系列电机振动垂直提升机是由提升槽、振动电机、减振系统和底座等组成。该系列提升机是采用振动电机作为振动源，固定在提升槽上的两台相同型号的振动电机中心线交叉一定角度安装，并做相反方向自同步旋转，振动电机所带的偏心块在旋转时各个瞬间位置所产生的离心力之分力沿抛掷方向作往复运动，使支承在减振器上的整个机体不停振动，使物料在提升槽内被抛起的同时向上运动，物料落入入料槽后，开始被抛起，此时可以使物料与空气充分接触，还可以起到散热冷却的作用。该提升机对粉状、块状和短纤维状的固体物料（有粘性和易结块的除外）都可垂直输送，还可以完成对物料的干燥、冷却作用。分敞开式、封闭式两种结构。并可按照用户需要进行特殊设计液压机液压提升机是一种非剪叉式液压升降台.适用于二三层工业厂房，餐厅，酒楼楼层间的货物传输.台面最低高度为150-300mm，最适合于不能开挖地坑的工作场所安装使用.该平台无须上部吊点，形式多样（单柱，双柱，四柱），运行平稳，操作简单可靠，楼层间货物传输经济便捷.可升高4.5m，电机：3000瓦，载重量：300KG-400KG，工作台面：800*580，方便客户装车和挤堆。可移动式物料提升机多用在仓库、码头等地方货物搬运。移动式物料升降机会给您很大的帮助，坚实的结构和可靠的性能使这些设备在各种工作场所中大显身手，能安全的提升最重达454公斤的货物，最高可达8米，每台设备都能整机移动操作并容易搬动。矿井提升机是一种大型提升机械设备。由电机带动机械设备，以带动钢丝绳从而带动容器在井筒中升降，完成输送任务。矿井提升机是由原始的提水工具逐步发展演变而来。现代的矿井提升机提升量大，速度高，安全性高，已发展成为电子计算机控制的全自动重型矿山机械。矿井提升机主要由电动机、减速器、卷筒（或摩擦轮）、制动系统、深度指示系统、测速限速系统和操纵系统等组成，采用交流或直流电机驱动。按提升钢丝绳的工作原理分缠绕式矿井提升机和摩擦式矿井提升机。缠绕式矿井提升机有单卷筒和双卷筒两种，钢丝绳在卷筒上的缠绕方式与一般绞车类似。单筒大多只有一根钢丝绳，连接一个容器。双筒的每个卷筒各配一根钢丝绳，连接两个容器，运转时一个容器上升，另一个容器下降。缠绕式矿井提升机大多用于年产量在120万吨以下、井深小于400米的矿井中。摩擦式矿井提升机的提升绳搭挂在摩擦轮上，利用与摩擦轮衬垫的摩擦力使容器上升。提升绳的两端各连接一个容器，或一端连接容器，另一端连接平衡重。摩擦式矿井提升机根据布置方式分为塔式摩擦式矿井提升机（机房设在井筒顶部塔架上）和落地摩擦式矿井提升机（机房直接设在地面上）两种。按提升绳的数量又分为单绳摩擦式矿井提升机和多绳摩擦式矿井提升机。后者的优点是：可采用较细的钢丝绳和直径较小的摩擦轮，从而机组尺寸小，便于制造；速度高、提升能力大、安全性好。年产120万吨以上、井深小于2100米的竖井大多采用这种提升机。缠绕式提升机单绳缠绕式提升机 根据卷筒数目可分为单卷筒和双卷筒两种：单卷筒提升机，一般作单钩提升。钢丝绳的一端固定在卷筒上，另一端绕过天轮与提升容器相连；卷筒转动时，钢丝绳向卷筒上缠绕或放出，带动提升容器升降。双卷筒提升机，作双钩提升。两根钢丝绳各固定在一个卷筒上,分别从卷筒上、下方引出,卷筒转动时，一个提升容器上升，另一个容器下降。缠绕式提升机按卷筒的外形又分为等直径提升机和变直径提升机两种。等直径卷筒的结构简单，制造容易，价格低，得到普遍应用。深井提升时，由于两侧钢丝绳长度变化大，力矩很不平衡。早期采用变直径提升机（圆柱圆锥形卷筒），现多采用尾绳平衡。缠绕式提升机的主要部件有主轴、卷筒、主轴承、调绳离合器、减速器、深度指示器和制动器等。双卷筒提升机的卷筒与主轴固接者称固定卷筒，经调绳离合器与主轴相连者称活动卷筒。中国制造的卷筒直径为 25m。随着矿井深度和产量的加大，钢丝绳的长度和直径相应增加。因而卷筒的直径和宽度也要增大，故不适用于深井提升。 多绳缠绕式提升机 提升机在超深井运行中，尾绳悬垂长度变化大，提升钢丝绳承受很大交变应力，影响钢丝绳寿命；尾绳在井筒中还易扭转，妨碍工作。20世纪 50年代末，英国人布雷尔（Blair）设计了一台直径3.2m双绳多层缠绕式提升机(又称布雷尔式提升机)，提升高度15802349m，一次提升量1020t。摩擦式提升机1938年，瑞典的ASEA公司在拉维尔（Laver）矿安装了一台直径1.96m双绳摩擦式提升机。1947年德国G.H.H.公司在汉诺威（Hannover）矿安装了一台四绳摩擦式提升机。多绳摩擦式提升机具有安全性高、钢丝绳直径细、主导轮直径小、设备重量轻、耗电少、价格便宜等优点，发展很快。除用于深立井提升外，还可用于浅立井和斜井提升。钢丝绳搭放在提升机的主导轮（摩擦轮）上，两端悬挂提升容器或一端挂平衡重(锤)。运转时，借主导轮的摩擦衬垫与钢丝绳间的摩擦力,带动钢丝绳完成容器的升降。钢丝绳一般为210根。井塔式提升机 机房设在井塔顶层，与井塔合成一体，节省场地；钢丝绳不暴露在露天，不受雨雪的侵蚀，但井塔的重量大，基建时间长，造价高，并不宜用于地震区。落地式提升机 机房直接设在地面上，井架低，投资小，抗震性能好；缺点是钢丝绳暴露在露天，弯曲次数多,影响钢丝绳的工作条件及使用寿命。多绳摩擦式提升机的主要部件有主轴、主导轮、主轴承、车槽装置、减速器、深度指示器、制动装置及导向轮等。主导轮表面装有带绳槽的摩擦衬垫。衬垫应具有较高的摩擦系数和耐磨、耐压性能,其材质的优劣直接影响提升机的生产能力、工作安全性及应用范围。使用较多的衬垫材料有聚氯乙烯或聚氨基甲酸乙酯橡胶等。由于钢丝绳与主导轮衬垫间不可避免的蠕动和滑动，停车时深度指示器偏离零位，故应设自动调零装置，在每次停车期间使指针自动指向零位。车槽装置用于车削绳槽，保持直径一致，有利于每根钢丝绳张力均匀。为了减少震动，可采用弹簧机座减速器。内装式提升机内装式摩擦提升机是将工作机和驱动机合二为一且融合微电子技术、信息技术的机电一体化整体，其特点是将电动机装在卷筒或摩擦轮内部。这种一体化的机电整体，既是工作机，又是驱动机。此外，作为电动机来看，也与传统构造不同，不是定子在外，转子在内，而是恰恰相反。它从根本上改变了提升机的构造概念。内装式提升机早在1988年就开始生产，世
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