JLX61Z/JLX69Z型
立磨减速机使用说明书
Operation Manual of Gear Reducer
for JLX61Z/JLX69Z Vertical Mill
（最终定稿）
Chongqing Gearbox Co., Ltd.
1． 型号含义和技术参数Definition of model and parameters
1.1 型号含义Definition of model
JLX61Z/JLX69Z型号 JLX61Z/JLX69Z model
J： 指减速机gear reducer；
L： 指两级减速two-stage gear 刷镀工艺reduction；
X： 指行星齿轮传动planetary gear drive； Z： 指铸造箱体cast casing；
61/69：指减速机名义功率nominal power of gear reducer
1.2 安徽新长江投资集团技术参数Parameters
额定功率Rated power 570/700 kw
电动机功率Power of electric motor 570/632 kw
输入轴转速RPM of input shaft 991/991 r/min
输出轴转速RPM of output shaft 24.4/23.2 r/min
总传动比Total ratio of transmission 40.91/42.7
重量Weight ~25900/28700 kg
容油量Oil capacity ~250/342 L
润滑油牌号Name of lubricating oil N320硫磷型重负荷极压工业齿轮油N320sulfur/phosphorus industrial gear oil for high loading and extreme pressure
设计轴向载荷Designed axial loadingzgbc政府监管 1600/2000 李庆善 标本 kN (静载荷static loading)
4800/8000 kN (动载荷dynamic loading)
1.3工作参数Control parameters
油压正常值Normal value for input oil ≥ 0.2-04 Mpa（油温≥40℃）
油压报警值Alarm value for input oil ≤ 0.11MPa
油压停机值Shutdown value for input oil ≤ 0.08Mpa
润滑油工作油温最低值Min. value of operating oil temperature for lubricating oil ≥25
℃
润滑油工作油温最高值Max. value of operating oil temperature for lubricating oil ≤60℃
推力轴承油池油温报警值Alarm value of oil temperature in oil sump for thrust bearing ≥ 80℃ 推力轴承油池油温停机值Shutdown value of oil temperature in oil sump for thrust bearing ≥ 83℃
2．性能与结构特点Features on performance and mechanism
该减速机在传动上由一级螺旋伞齿轮和一级行星齿轮传动组成，与同样额定功率和传动比的三级普通螺伞—圆柱齿轮减速机相比，不仅体积小、重量轻，而且传动平稳、噪音低、效率高等。所有这些主要是由于利用了行星齿轮传动的特点，同时又由于磨齿加工齿轮的数量占齿轮总数量的百分比提高，使得整个传动的各种性能大大提高所致。 The gear reducer is composed of one-stage spiral bevel gear and one-stage planetary gear in terms of drive. Compared with three-stage common spiral bevel gear—cylindrical gear re
ducer, the gear reducer proper is featured by small volume, light weight, stable driving, low noise and high efficiency, etc. All these features are attributed to the utilization of planetary gear drive and increased ratio of no. of grinding teeth machining gears to the total no.s of gears, which result in remarkable improvement of all performanceISO 14644s for the whole driving system.
该减速机主要由以下几部分组成。The gear reducer is structured as follows：
2.1伞齿轮传动部分Driving part of bevel gear
减速机输入级为一对克林贝尔格螺旋伞齿轮。大小齿轮均采用渗碳淬火钢进行制造，并采用硬齿面加工方法加工而成，强度很高。小伞齿轮和大伞齿轮均通过轴承座装入下壳体中，两轴承座法兰下设有调整垫，用于调整齿轮副接触区的位置和齿侧间隙。 The input stage of the gear reducer is a couple of KLINGELNBERG extension epicycloidal spiral bevel gears hardened-steel and machined by means of hard tooth surface processing, which presents high strength. Bull gear and pinion gear are mounted in lower casing via bearing seat. There are adjusting spacers beneath flange of two bearing seats, which are
designed to adjust the position of gears’ sub-contact area and the gap of flank of teeth.
2.2行星级齿轮传动部分Driving part of planetary-stage gear
行星级齿轮传动主要由太阳轮、行星轮、内齿圈等组成。Planetary-stage gear is mainly composed of sun wheel, planetary gear, internal ring gear, etc.
工作时太阳轮浮动，以便使其轮齿同时和三个行星轮均匀接触，达到均载目的；行星轮安装在行星架上，在绕自身轴线传动的同时，也随行星架一齐转动。内齿轮安装在壳体中固定不动。太阳轮，行星轮均为渗碳淬火后磨齿齿轮，内齿轮为调质齿轮。When in operation, the sun wheel is floating so as to allow its gears to uniformly contact 3 other planetary gears for uniform loading. Planetary gears are mounted on the planetary frame and is rotating with the planetary frame while driving around his own axis. Internal gear is mounted in the casing without movement. Sun wheel and planetary gear are made of post-carburized hardened grinding teeth gear while internal gear is of quenching and tempering gear.
2.3齿轮联轴器Gear coupling
该减速机在两级齿轮传动之间设置了鼓形齿联轴器，其作用是连接两级齿轮之间的传动。由于齿轮联轴器的内齿套也随行星级中的太阳轮一起浮动，所以联轴器齿轮也采用合金钢材料来制造。 There is a barrel-shaped gear coupling between two-stage gear drive for the gear reducer proper, the purpose of which is to link the drive for two-stage gear. Since the internal teeth sleeve for the gear coupling is floating with the sun gear in the planetary-stage, coupling gear is made of alloyed steel.
2.4平面滑动推力轴承Plane sliding thrust bearing
为了承受磨煤机工作中的动静载荷，减速机上部设置了平面滑动推力轴承，靠推力盘旋转在推力盘和推力瓦之间产生动压润滑油膜进行工作。In order to sustain dynamic and static loading of coal mill in operation, the gear reducer is equipped with plane sliding thrust bearing at the upper part, which may generate dynamic pressure lubricating oil film between thrust disc and thrust bushing by means of rotation of thrust disc.
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