靠谱的买球平台

X
Gear reducer series
QJY hard toothed reducer series for cranes
time:2017-05-12 14:49:35

QJY hard toothed reducer series for cranes

1, product classification

QJY series reducer is the reducer (reducer) of hardened surface (carburized, hardened tooth surface) developed by market demand. It includes three major categories and 12 basi🌸c types

The structure is shown in Figure 1, and its type code and🌳 main parameters are shown in table 1.

1-1.jpg1-2.jpg

 

2, performance characteristics:

(1) the gears𒁏 are made of high quality low carbon alloy steel, carburizing, quenchiꦏng and gear precision 6.

(2) hiജgh accuracy, high efficiency, smooth transmission, low noise, smaller than the hardene🧜d and tempered gear reducer (QJ Series), light weight and high carrying capacity.

(3) weld🌳ed box structure. Installation type: three pivot installation and foundation installation.

(4) output sha👍ft type: flat key, involute spline, gear shaft end, hollow shaft four kinds.

(5) u♚se oil tank lubrication and natural cooling; vertical reducer adopt🦩s circulating oil lubrication.

(6) using rolling bearings.

Application range:

1 input speed is generally N1 less t🐷han 1500r/min.

2 working env🔜ironment temperature -40-+50 centigrade.

3 positive and negative two directions.

The utility model is suitable for th♒e selection of 𓂃various types of cranes and reducers.

3, assembly type (see Figure 2):

1-3.jpg

  

4, installation type:

AjYD2, OJYD3, QJYD23 and OJYD34 adopt found🍸ation installation.

CJJY2, QJY3, QJY23 and QJY34 are installed with three pivot support (inst♛allation method shown in Figure 4)

There are two ways to allow horizontal W🥀 or vertical L (see Fi🧸gure 3).

1-4.jpg

 

Note: a. Angles and transmission ratio, ಞwhen the reducer a tilt angle, should ensure that the intermediate stage gear tooth depth (1-2 oil immersed high alpha o specific data set by the user).

The supporting type of QJY2, QJY3, OJY23 and QJY34 type reducer is shown in Fiꦗ𓃲gure 4

Housing support (structural example)

1-5.jpg1-6.jpg

  

5, shaft end type

The high speed shaft end is connected by cylindrical sh🎃aft flat key.

The output shaft ends P-, the cylindrical shaft extends flat key, and the singl🅠e key connection;

H- cylindrical shaft involute spline joint:

C- gear shaft end (for retarder only with cen🔯ter distance of 23ᩚᩚᩚᩚᩚᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ⁤⁤⁤⁤ᩚ𒀱ᩚᩚᩚ6-560mm)

Axial ends, type and size are shown in T♔able 5 and table 2

1-7.jpg
1-8.jpg

 

6 code examples:

Three fulcrum supporting crane speed reducer

1-9.jpg

  

Tag example:

The three stage transmission of the reducer is the nominal center distance ai=560mm, the nominal transmission ratio is 50, the assembly type is 111st, the output shaft end i🦂s the gear shaft end, and the horizontal installation is marked🉐 as: QJY3560-50IIICW

Reducer with pedestal crane

1-10.jpg

 

Tag example

Crane reducer two stage transmiss🍃ion, nominal center distance a, =560mm, nominal transmission ratio i=20, IV assembly type, shaft end type is P, marked as: QJYD2560-20, IV, P.

Reducer with hollow shaft crane

1-11.jpg

  7、外形及安装尺寸

  (1)表3QJY2、QJYA2减速器外形及安装尺寸

1-12.jpg
1-13.jpg

(2) form and installation dimension o💦f ꦗtable 4QJY3 and QJYA3 reducer

1-14.jpg
1-15.jpg

  (3) form and installation dimension of t🦹able 5QJY23 and QJYA23 reducer

1-16.jpg
1-17.jpg


back