ZLYJ Gear Speed Reducer is suitable for the transmission device with output shaft and input shaft laying verticality. This speed reducer we manufactured in China is mainly applied on belt conveyer and some other transportation machines and it can also be used on other general mechanical transmission organs of metallurgy, mining, chemical, coal, construction material, textile, oil /petroleum and so on.
I. Introduction of ZLYJ Gear Speed Reducer
ZLYJ series gearbox is designed specially for plastic and rubber screw extruder. It composed of high-precision gear and force-plate power transmission device. The main character of ZLYJ series gearbox is high strength alloy steel that being used for gear and shaft parts. Gear goes through processes of gasification, quenching, and grinding. Its precision could meet GB10095-88, DIN 6. Hardness of gear surface could be HRC54-62. A big size thrust bearing uses in the output part, which can bear axial shaft force of screw. ZLYJ series gearbox also boasts its compact design, high bearing load, smooth transmission, low noise and high efficiency. II. Working Conditions of ZLYJ Gear Speed Reducer
A. The high speed shaft should round no more than 1500rpm.
B. The circumferential velocity of gear should no more than 20m/s.
C. Working environment temperature is -40—45℃. Lubricant should be heated up to 0℃ if temperature lowers than 0℃.
D. ZLYJ series gearbox could be rounded in a clockwise and un-clockwise direction.
BUT for High speed shaft with single direction oil pump, its usual direction
will be output shaft clockwise when facing the output shaft. Please contact
us if otherwise. III. Type
Model: ZLYJ 225-12.5-I (Ⅱ.Ⅲ.Ⅳ.Ⅴ.Ⅵ.Ⅶ. VI. ZLYJ: Code of gearbox
225: size
12.5: ratio
I: assembly type IV. Selection of Gearbox
No.1: Ratio (see Table 1)
If input speed n1=1000rpm, output speed n2=70rpm
Ratio i=n1/n2=1000/70=14.28, then choose ratio 14.
No.2: Size (see Table 1)
Size is selected by required input power and output speed
Input power P=26kw,
Check table 1, 29.2kW＞26KW, get ZLYJ200.
No. 3: Assembly Type (see Drawing 1)
No. 4: Shaft force
Fa=∏*ds2 *PS/(4*1000)
Diameter of screw ds=75mm, force of screw PS=26MPa
Force Fa=∏*752 *26/(4*1000)=114.8KN
187KN＞114.8KN, ZLYJ200 can bear this shaft force
No. 5: Confirm the connecting dimension(See drawing 1, Table 2)
1. Check diameter, key width or spline, depth of output shaft
2. Check dimension of mounting hole and force plate screw hole
No. 6: confirm cooling method
Usually, small sizes adopt using splash lubricant, or natural cooling.
Big sizes adopt force lubricant and cooling devices. Please contact us if otherwise.
Our products:JL-200, UL-E2, UL--E20, UL--M2 series motor protector, JL-400 power protection relay, SSR, inverter, leakage protective plug and powerful searchlight.
Ningbo Jinfei Transmission Equipment Co.,Ltd
ADD: NO.299 Lantian Road.Ningbo ZheJiang China.
Marketing Phone:0574-87135137
Marketing Department Fax:0574-87225978
Technical Department Tel:87225978
Technical DepartmentFax:0574-87225978
P.C.:315012
E-mail:sales@gear-units.com
WEB:http://www.gear-units.com
Size
ZLYJ112
ZLYJ133
ZLYJ146
ZLYJ173
ZLYJ200
ZLYJ225
ZLYJ250
Force KN
41
54
60
153
187
250
268
Size
ZLYJ280
ZLYJ315
ZLYJ330
ZLYJ375
ZLYJ420
ZLYJ450
Force KN
356
403
448
495
545
590
Recommend Devices
Size
112
133
146
173
200
225
250
280
315
330
375
420
450
Ratio
8
8
10
10
12.5
12.5
16
16
16
16
16
16
20
Screw
Diameter
35
45,50
55
65
75
90
100
105,110
120
130,150
150,160
165
165
Motor
Power
5.5-4p
7.5-4p
11-4p
18.5-4p
25-4p
45-4p
45-4p
55-6p
75-6p
132-6p
132-6p
160-6p
213-6p
Input
Speed
800
800
900
900
1000
1000
1120
960
960
960
960
960
1200
Output
Speed
100
100
10
90
80
80
70
110
60
60
60
60
60
Remark
Motor and gearbox connected by belt
Motor and gearbox connected by coupling
Drawing 1 Dimension and Assembly Type of ZLYJ Gear Speed Reducer
