Hello and welcome toTitker Trade Network!
The main business scope is all over the country

free member

Special price for crane accessories slewing bearing device

total supply
1000 台
MOQ
1 台
brand
中瑞
area
ShandongJining City
Delivery period:
Shipped within 3 days from the date of payment by the buyer
Buyers are still looking
  • 1
  • 2
  • 3
Products Recommended

Tractor drilling mac

Negotiable

10-ton truck crane,

Negotiable

Direct sales of home

Negotiable

Excavating machine,

Negotiable

Homemade crane acces

Negotiable

Direct sales of hydr

Negotiable

Shop information

area:Shandong Jining City

Member level:corporate memberYear1

identity:  

Already paid:0.00 yuan deposit

my badge: [Integrity File]

online service:

Business card

Jining Zhongrui Heavy Industry Machinery Co., Ltd.

Applets
【Kind tips】When you call, please mention that you saw us on Titker Trade Network, thank you.
Product Details
型号:
JNZR
品牌:
中瑞
 吊车配件回转支承装置优惠价格
吊车回转支承装置配件可定制,优质的生产厂家
吊车回转支承装置配件产品介绍
小吊车回转支承是一种能够承受综合载荷的大型轴承,可以同时承受较大的轴向、径向负荷和倾覆力矩。回转支承又叫转盘轴承,有些人也称其为:旋转支撑承、 回旋支承。回转支承在现实工业中应用很广泛,被人们称为:“机器的关节”,是两物体之间需作相对回转运动,又需同时承受轴向力、径向力、倾翻力矩的机械所必需的重要传动部件。随着机械行业的迅速发展,回转支承在船舶设备、工程机械、轻工机械、冶金机械、医疗机械、工业机械等行业得到了广泛的应用。
 
回转支承是近四十年在世界范围内逐渐兴起的新型机械零部件,它有内外圈、滚动体等构成,目前,我国定型生产的回转支承,主要是80年代初由机械工业部指定天津工程机械研究所组织引进原联邦德国Rothe Erde公司的设计和制造技术。1984年12月20日发布了中华人民共和国机械工业部标准:JB/2300-84《回转支承型式、基本参数和技术要求》,主要由机械电子工业部天津工程机械研究所、徐州回转支承厂负责起草,后来国家又在1991年发布了建筑机械标准:JB36.1-36.3-91,在1999年和2011年先后发布新的机械行业标准JB/2300-1999及JB/2300-2011。
 
一、小吊车回转支承装置
 
小吊车的回转支承装置通常采用滚动轴承式,其结构形式与滚动轴承相同。这种装置的主要特点,是结构紧凑,装配与维修方便,防尘和润滑条件好,轴向间隙小,回转阻力小,寿命长。因为轴承为环形结构,中心处的通道对于上下车之间的动力、信息传递及总体布罝提供了很好的方便条件。但这种装置要求车架和转台结构有很大的刚性,保证支承装置的滚动体与滚道处于良好接触状态。另外,由于对材枓与加工工艺的要求较高,所以滚动轴承式回转支承装置的成本较高。
 
按滚动体的形状,回转支承装置可分为滚珠式和滚往式两种。毎一种又有单列和双列之分,滚柱式还有三列式。回转驱动装罝的大齿圈通常与支承装置的座圈制成一体,分内啮合和外啮合两种。使用时,支承装置的内外圈用螺栓分别与车架和转台固定在一起。由了滚珠式支承装置的滚动体与座圈处于点接触,而滚柱式的是线接触,所以从理论上来讲,后者的承载能力比前者大。但考虑到回转支承装置为能承受向上或向下的力,单列滚柱式回转支承装置中的滚柱是相互交叉放置的,一半滚拄承受向上的力,另一半承受向下的力,实际受载时,承载的滚柱只有总数的一半,所以对单列轴承式回转支承,滚珠式和滚柱式的承载能力相差不大。使用中应注意避免外部杂质和腐蚀性流体进入装置内部,并要按要求定期加润滑剂,以保证装置的正常使用。
 
吊车回转平台又称上部机架。它是动力装置和各工作装置安装和连接的基础。平台前部装有起重臂和操纵系统,中后部有柴油机和固定变幅机构的双足支架,下底面装有回转支承装置的上座圈,后部装有配重箱(块)。
 
1、回转平台
 
回转平台又称上部机架。它是动力装置和各工作装置安装和连接的基础。平台前部装有起重臂和操纵系统,中后部有柴油机和固定变幅机构的双足支架,下底面装有回转支承装置的上座圈,后部装有配重箱(块)。
 
2、回转支承
 
回转支承完成回转作业外,还能降上部各种载荷传到下支承架,当回转平台旋转时,保持机身平衡。
 
(1)机械式起重机回转支承 该机采用滚子夹套式回转支承。它是用多个直径较小的圆柱形或圆锥形滚轮,通过座圈固定,使每个滚轮的间距相同。回转时,滚轮在滚道上滚动,座圈也随之转动。
 
(2)小吊车回转支承 该机采用的是滚动轴承式回转支承。它由上、下座圈,滚动体,隔离环,密封装置及大齿圈等组成。滚动体有滚柱和钢球两种。按滚动体的排数有单排、双排两种。单排式可承受不同方向的轴向载荷、径向载荷和倾翻力矩;双排式能承受较大的轴向载荷和倾翻力矩。
 
3、回转机构
 
小型吊车是由主转动装置竖轴下端的圆柱齿轮和回转传动齿轮啮合,通过离合器驱动回转小齿轮沿回转大齿轮旋转,使回转平台随之转动。液压式起重机是由液压马达,通过一组减速齿轮,驱动回转小齿轮,实现机身回转。
 
二、小吊车回转机构介绍
 
一台小吊车使用多年后,回转时回转支承旷动发响,加上其他故障,需进行全车修理,在修理回转支承时,按修理规程进行解体,是单排四点接触球式的,解体前将磁力千分表磁性表座一端吸在回转支承的固定一方,将千分表头靠在回转支承的回转一方,用力上下拉动,间隙达3.0mm,将千分表放在内外方向检査,间隙为2.8mm,这样的检査数据已严重超出使用极限,按使用规定要更换新回转盘,但这样做要花数万元成本,而且厂家不能承诺 很快到货,小吊车必须停机待件,在这种情况下,考虑采取相应的技术手段对其进行修复。
   
为此,对回转支承进行了全面检测,在拆卸分解、清洗、全面检测以及轨道检查后,发现轨道虽然严重磨损,但没有裂纹和深凹现象,属于正常使用造成的过度磨损,因此对这样的回转支承采用了修理尺寸的方法,把轨道滚珠直径全部加大1.0mm,定制了加大尺寸的滚珠,把旧滚珠全部换新,装配好后回转支承转动灵活,间隙正常,以简便修复方案保证了小吊车的正常使用。
中瑞联系方式
13953776710
QQ:3225259300
 
 
 
"Special price for crane accessories slewing bearing device"Related Products
Related categories
plastic robot oil equipment Packaging Equipment Packaging forming machinery Printing Equipment Prepress processing equipment Post-press processing equipment agricultural machinery Food and beverage processing equipment Sewage treatment equipment Cleaning and cleaning equipment energy saving equipment Air purification equipment Noise reduction equipment garbage incinerator Generator/generator set electric motor Low voltage electrical appliances High voltage electrical appliances Distribution and transmission equipment Textile equipment and equipment Leather processing equipment Paper processing machinery Shoemaking machinery Painting equipment Papermaking equipment and accessories Clothing machinery and equipment furniture manufacturing machinery Craft gift processing equipment Ceramic production and processing machinery Computer product manufacturing equipment Home appliance manufacturing equipment Toy processing equipment Other industry-specific equipment machine tool valve Pump Transmission Parts industrial belt Filtration equipment filter material Bearing spring Fasteners/connectors Seals Mold Tools/fixtures Pneumatic Components Hydraulic Components Machine tool accessories Fans and exhaust equipment Compression equipment Compression equipment accessories Reducer/speed changer internal combustion engine Testing Machine Welding materials and accessories brake Welding and cutting equipment Welding auxiliary machine Engineering machinery/construction machinery Mineral processing equipment Smelting equipment Metal forming equipment Electronic product manufacturing equipment Industrial control systems and equipment Electric heating equipment Commercial special equipment Financial special equipment hotel equipment Industrial lubricants 换热、制冷空调设备 Industrial boilers and accessories workshop equipment 建材生产加工机械 gas equipment Casting and heat treatment equipment Non-destructive testing instruments Refrigeration equipment Rubber machinery Conveying equipment Mining loading and unloading equipment Mining conveying equipment Mining construction equipment Inventory chemical equipment Crystallization equipment Mixing equipment Chemical experimental equipment Chemical equipment accessories Chemical pipelines and accessories Chemical molding equipment Complete sets of chemical equipment Drying equipment Industrial humidifier Crushing equipment Separation equipment Mechanical measuring instruments reaction equipment Geological and mineral survey equipment Mass transfer equipment heat transfer equipment Storage and transportation equipment glass machinery Second hand machine tools second hand boiler Second-hand construction machinery Inventory equipment and industrial supplies Hydraulic machinery and accessories Ironing and washing equipment
Related Information
Elevated self-propelled dry field boom s Elevated self-propelled corn boom spraye Chicken manure dehydrator Cow dung dehydrator quotation Chicken manure dehydrator quotation Pig manure dehydrator quotation The latest price of duck manure dehydrat The latest price specifications of pig m Corn germ twin-screw low-temperature oil Elevated self-propelled dry field spray Jinpai Industrial's fully automatic stea Quotation of subcritical low-temperature 50 tons grape seed oil subcritical extra Wheat germ oil equipment subcritical com Household feed pellet machine manufactur
Disclaimer

The information/pictures/parameters, etc. displayed on this webpage about【Special price for crane accessories slewing bearing device】are provided by member【Jining Zhongrui Heavy Industry Machinery Co., Ltd. 】,By Titker Trade Network members 【Jining Zhongrui Heavy Industry Machinery Co., Ltd. 】is solely responsible for the authenticity, accuracy and legality of the information/pictures/parameters, etc.,Titker Trade Network only provides display services. For your safety, please choose Titker Trade Network for online trading, otherwise Titker Trade Network will not bear any responsibility for this.

If your legitimate rights and interests have been infringed, please contact Titker Trade Network customer service as soon as possible. We will serve you wholeheartedly. Thank you for your attention and support to Titker Trade Network!

Titker Trade Network