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传动效率
公称传
动比iN |
输入转
速1/
rmin-1 |
中心距/mm | |||||||||
80 |
100 |
125 |
140 |
160 |
180 |
200 |
225 |
250 |
280~710 | ||
传动效率η/% | |||||||||||
10 |
1500 |
90 |
91 |
91 |
92 |
92 |
93 |
93 |
94 |
94 |
95 |
1000 |
90 |
91 |
91 |
92 |
92 |
93 |
93 |
94 |
94 |
95 | |
750 |
89 |
89.5 |
90 |
91 |
91 |
92 |
92 |
93 |
93 |
94 | |
500 |
87 |
87.5 |
88 |
89 |
89 |
90 |
90 |
91 |
91 |
92 | |
12.5 |
1500 |
89 |
90 |
90 |
91 |
91 |
92.5 |
92.5 |
93.5 |
93.5 |
94.5 |
1000 |
89 |
90 |
90 |
91 |
91 |
92.5 |
92.5 |
93.5 |
93.5 |
94.5 | |
750 |
88 |
88.5 |
89 |
90 |
90 |
91.5 |
91.5 |
92 |
92 |
93 | |
500 |
86 |
86.5 |
87 |
88 |
88 |
89 |
89 |
90 |
90 |
91 | |
14 |
1500 |
88.5 |
89.5 |
89.5 |
91 |
91 |
92 |
92 |
93 |
93 |
91 |
1000 |
88.5 |
89.5 |
89.5 |
91 |
91 |
92 |
92 |
93 |
93 |
94 | |
750 |
87 |
88 |
88.5 |
89.5 |
89.5 |
91 |
91 |
91.5 |
91.5 |
92.5 | |
500 |
85 |
86 |
86.5 |
87.5 |
87.5 |
88 |
88 |
89 |
89 |
90 | |
16 |
1500 |
88 |
89 |
89 |
90 |
90 |
91 |
91 |
92 |
92 |
93 |
1000 |
88 |
89 |
89 |
90 |
90 |
91 |
91 |
92 |
92 |
93 | |
750 |
86.5 |
87 |
88 |
89 |
89 |
90 |
90 |
91 |
91 |
92 | |
500 |
84 |
84.5 |
85 |
86 |
86 |
87 |
87 |
88 |
88 |
89 | |
18 |
1500 |
87.5 |
88 |
88 |
89.5 |
89.5 |
90 |
90 |
91 |
91 |
92 |
1000 |
87 |
88 |
88 |
89 |
89 |
90 |
90 |
91 |
91 |
92 | |
750 |
85.5 |
86 |
87 |
88 |
88 |
89.5 |
89.5 |
90 |
90 |
91 | |
500 |
83 |
83.5 |
84 |
85 |
85 |
86 |
86 |
87 |
87 |
88 | |
20 |
1500 |
86.5 |
87 |
87 |
88 |
88 |
89.5 |
89.5 |
90 |
90 |
91 |
1000 |
86 |
86.5 |
87 |
88 |
88 |
89.5 |
89.5 |
90 |
90 |
91 | |
750 |
84.5 |
85 |
86 |
87 |
87 |
89 |
89 |
89.5 |
89.5 |
90 | |
500 |
82 |
82.5 |
83 |
84 |
84 |
85 |
85 |
86 |
86 |
87 | |
22.4 |
1500 |
85.5 |
86 |
86 |
87 |
87 |
88.5 |
88.5 |
89 |
89 |
90 |
1000 |
85 |
86 |
86 |
87 |
87 |
88.5 |
88.5 |
89 |
89 |
90 | |
750 |
83.5 |
84.5 |
84.5 |
85.5 |
85.5 |
87.5 |
87.5 |
88 |
88 |
89 | |
500 |
80.5 |
81 |
81 |
82 |
82 |
83 |
83 |
84 |
84 |
85.5 | |
25 |
1500 |
85 |
86 |
86 |
87 |
87 |
88 |
88 |
88.5 |
88.5 |
89 |
1000 |
84 |
85 |
86 |
87 |
87 |
88 |
88 |
88.5 |
88.5 |
89 | |
750 |
83 |
83.5 |
84 |
85 |
85 |
86 |
86 |
87 |
87 |
88 | |
500 |
79 |
79.5 |
80 |
81 |
81 |
81.5 |
81.5 |
83 |
84 |
85 | |
28 |
1500 |
82.5 |
83 |
83.5 |
84 |
84 |
85 |
85 |
85 |
86 |
87.5 |
1000 |
82 |
82.5 |
83 |
84 |
84 |
85 |
85 |
86 |
86 |
87.5 | |
750 |
81 |
81.5 |
82 |
83 |
83 |
84 |
84 |
85 |
85 |
86 | |
500 |
77 |
77.5 |
77.5 |
78 |
78 |
79 |
79 |
80 |
80 |
81.5 | |
31.5 |
1500 |
80 |
80.5 |
81 |
82 |
82 |
83 |
83 |
84 |
84 |
85 |
1000 |
80 |
80.5 |
81 |
82 |
82 |
83 |
83 |
84 |
84 |
85 | |
750 |
77 |
77.5 |
78 |
79 |
79 |
80 |
80 |
81 |
81 |
82 | |
500 |
73 |
73.5 |
74 |
74.5 |
74.5 |
75.5 |
75.5 |
76 |
76 |
77.5 | |
35.5 |
1500 |
78.5 |
79 |
79.5 |
80 |
80 |
81 |
81 |
82 |
82 |
83.5 |
1000 |
78.5 |
79 |
79.5 |
80 |
80 |
81 |
81 |
82 |
82 |
83.5 | |
750 |
77 |
77.5 |
78 |
79 |
79 |
80 |
80 |
81 |
81 |
82 | |
500 |
73 |
73.5 |
74 |
74.5 |
74.5 |
75.5 |
75.5 |
76 |
76 |
77.5 | |
40 |
1500 |
76 |
76.5 |
77 |
78 |
78 |
79 |
79 |
80 |
80 |
81 |
1000 |
76 |
76.5 |
77 |
78 |
78 |
79 |
79 |
80 |
80 |
81 | |
750 |
75 |
75.5 |
76 |
77 |
77 |
78 |
78 |
79 |
79 |
80 | |
500 |
71 |
71.5 |
72 |
73 |
73 |
74 |
74 |
75 |
75 |
76 | |
45 |
1500 |
74.5 |
75 |
76 |
77 |
77 |
78 |
78 |
79 |
79 |
80 |
1000 |
74.5 |
75 |
76 |
77 |
77 |
78 |
78 |
79 |
79 |
80 | |
750 |
73.5 |
74 |
74.5 |
75 |
75 |
76 |
76 |
76.5 |
76.5 |
77 | |
500 |
69.5 |
70.5 |
71.5 |
71.5 |
72.5 |
72.5 |
73 |
73 |
74.5 | ||
50 |
1500 |
73 |
74 |
74 |
75 |
75 |
76 |
76 |
77 |
77 |
78 |
1000 |
73 |
74 |
74 |
75 |
75 |
76 |
76 |
77 |
77 |
78 | |
750 |
72 |
72.5 |
73 |
74 |
74 |
75 |
75 |
76 |
76 |
77 | |
500 |
68 |
68.5 |
69 |
70 |
70 |
71 |
71 |
72 |
72 |
73 | |
56 |
1500 |
71.5 |
72.5 |
72.5 |
73.5 |
73.5 |
74.5 |
74.5 |
75 |
76 |
77 |
1000 |
71.5 |
72.5 |
72.5 |
73.5 |
73.5 |
74.5 |
74.5 |
75 |
76 |
77 | |
750 |
70.5 |
71 |
71.5 |
72.5 |
72.5 |
73.5 |
73.5 |
74.5 |
74.5 |
75.5 | |
500 |
67 |
67.5 |
68 |
68.5 |
68.5 |
69.5 |
69.5 |
71 |
71 |
71.5 | |
63 |
1500 |
70 |
71 |
71 |
72 |
72 |
73 |
73 |
74 |
74 |
75 |
1000 |
70 |
71 |
71 |
72 |
72 |
73 |
73 |
74 |
74 |
75 | |
750 |
69 |
69.5 |
70 |
71 |
71 |
72 |
72 |
73 |
73 |
74 | |
500 |
65 |
65.5 |
66 |
67 |
67 |
68 |
68 |
69 |
69 |
70 |
1.选用系数
(1)选用系数KA见表1。
表1 选用系数KA
原动机 |
载荷性质
(工作机特性) |
每日工作时间/h | ||||
≤0.5 |
>0.5~1 |
>1~2 |
>2~10 |
>10 | ||
KA | ||||||
电动机,汽轮机燃气轮机
(启动转矩小,偶尔作用) |
均匀 |
0.6 |
0.7 |
0.9 |
1 |
1.2 |
轻度冲击 |
0.8 |
0.9 |
1.0 |
1.2 |
1.3 | |
中等冲击 |
0.9 |
1.0 |
1.2 |
1.3 |
1.5 | |
强烈冲击 |
1.1 |
1.2 |
1.3 |
1.5 |
1.75 | |
汽轮机,燃气轮机,液动机
或电动机(启动转矩大,经
常作用) |
均匀 |
0.7 |
0.8 |
1 |
1.1 |
1.3 |
轻度冲击 |
0.9 |
1 |
1.1 |
1.3 |
1.4 | |
中等冲击 |
1 |
1.1 |
1.3 |
1.4 |
1.6 | |
强烈冲击 |
1.1 |
1.3 |
1.4 |
1.6 |
1.9 | |
多缸内燃机 |
均匀 |
0.8 |
0.9 |
1.1 |
1.3 |
1.4 |
轻度冲击 |
1.0 |
1.1 |
1.3 |
1.4 |
1.5 | |
中等冲击 |
1.1 |
1.3 |
1.4 |
1.5 |
1.8 | |
强烈冲击 |
1.3 |
1.4 |
1.5 |
1.8 |
2 | |
单缸内燃机 |
均匀 |
0.9 |
1.1 |
1.3 |
1.4 |
1.6 |
轻度冲击 |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 | |
中等冲击 |
1.3 |
1.4 |
1.6 |
1.8 |
2 | |
强烈冲击 |
1.4 |
1.6 |
1.8 |
2 |
2.3或更大 |
注:工作机工作情况举例如下。
均匀载荷:发电机、均匀装料的带式或板式输送机,螺旋输送机,轻型卷扬机,包装机械,机床进给装置,通风机,轻型离心机,离心泵,稀液料和密度均匀物料搅拌机和混合机,按最大剪切力矩设计的冲压机。
轻度冲击:不均匀装料的带式或板式输送机,机床主传动装置,重型卷扬机,起重机旋转机构,工矿通风机,重型离心机,离心泵,粘性液料及密度不均匀物料搅拌机和混合机,多缸柱塞泵,给料泵,挤压机,压延机,回转窑,锌、铝带材、线材、型材轧机。
中等冲击:橡胶挤压机,经常起动的塑料混合机,轻型球磨机,木材加工机械,钢坯初轧机,单缸活塞泵。
强烈冲击:铲斗链传动,筛传动装置,单斗挖土机,重型球磨机,橡胶混炼机,冶金机械,重型给料泵,旋转式钻探设备,压砖机,除鳞机,冷轧机,压块机。
(2)启动频率系数见表2。
表2 启动频率系数K1
每小时启动次数 |
≤10 |
>10~60 |
>60~400 |
启动频率系数K1 |
1 |
1.1 |
1.2 |
(3)小时负荷率系数K2见表3。
表3 小时负荷率系数K2
小时负荷率Jc/% |
100 |
80 |
60 |
40 |
20 |
小时负荷率系数K2 |
1 |
0.95 |
0.88 |
0.77 |
0.6 |
注:1.Jc=1h内负荷作用时间(min)/60×100%。
2.Jc<20%时按Jc=20%计。
(4)冷却方式系数K4见表4。
表4 冷却方式系数K4
冷却方式 |
减速器中心距a/mm |
蜗杆转速n1/r·min-1 | |||
1500 |
1000 |
750 |
500 | ||
冷却方式系数K4 | |||||
自然冷却
(无风扇) |
80 |
1 |
1 |
1 |
1 |
100~225 |
1.37 |
1.59 |
1.59 |
1.33 | |
250~710 |
1.51 |
1.85 |
1.89 |
1.78 | |
风扇冷却 |
80~710 |
1 |
2.选用条件
选用减速器应知:原动机、工作机类型及载荷性质,每日平均运转时间,启动频率和环境温度。
(1)减速器一般采用油池润滑,当蜗杆计算圆滑动速度vs>10m/s时,采用强制润滑。
(2)减速器用润滑油粘度指数(Ⅵ)应大于100。
(3)减速器采用合成蜗轮蜗杆油。
(4)减速器润滑油油品按下表规定。允许采用润滑性能相当或更高的油品。
润滑油油品
输入转速/r·min-1 |
中心距/mm |
80 100 125 160 200 250 315 400 500 630
140 180 225 280 355 450 560 710 | |
1500
1000
750
500 |
320蜗轮蜗杆油①
460蜗轮蜗杆油
680蜗轮蜗杆油
|
①建议采用强制润滑。
(5)减速器轴承采用飞溅润滑,也可用脂润滑。
页次:2/2 每页10条 共16条信息 分页:[1][2] |