公稱傳 動(dòng)比iN |
輸入轉(zhuǎn) 速1/ rmin-1 |
中心距/mm |
|||||||||
80 |
100 |
125 |
140 |
160 |
180 |
200 |
225 |
250 |
280~710 |
||
傳動(dòng)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 |
69.570
|
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 |
|
選用系數(shù)
(1)選用系數(shù)KA見表1。
表1 選用系數(shù)KA
原動(dòng)機(jī) |
載荷性質(zhì) (工作機(jī)特性) |
每日工作時(shí)間/h |
||||
≤0.5 |
>0.5~1 |
>1~2 |
>2~10 |
>10 |
||
KA |
||||||
電動(dòng)機(jī),汽輪機(jī)燃?xì)廨啓C(jī) (啟動(dòng)轉(zhuǎn)矩小,偶爾作用) |
均勻 |
0.6 |
0.7 |
0.9 |
1 |
1.2 |
輕度沖擊 |
0.8 |
0.9 |
1.0 |
1.2 |
1.3 |
|
中等沖擊 |
0.9 |
1.0 |
1.2 |
1.3 |
1.5 |
|
強(qiáng)烈沖擊 |
1.1 |
1.2 |
1.3 |
1.5 |
1.75 |
|
汽輪機(jī),燃?xì)廨啓C(jī),液動(dòng)機(jī) 或電動(dòng)機(jī)(啟動(dòng)轉(zhuǎn)矩大,經(jīng) 常作用) |
均勻 |
0.7 |
0.8 |
1 |
1.1 |
1.3 |
輕度沖擊 |
0.9 |
1 |
1.1 |
1.3 |
1.4 |
|
中等沖擊 |
1 |
1.1 |
1.3 |
1.4 |
1.6 |
|
強(qiáng)烈沖擊 |
1.1 |
1.3 |
1.4 |
1.6 |
1.9 |
|
多缸內(nèi)燃機(jī) |
均勻 |
0.8 |
0.9 |
1.1 |
1.3 |
1.4 |
輕度沖擊 |
1.0 |
1.1 |
1.3 |
1.4 |
1.5 |
|
中等沖擊 |
1.1 |
1.3 |
1.4 |
1.5 |
1.8 |
|
強(qiáng)烈沖擊 |
1.3 |
1.4 |
1.5 |
1.8 |
2 |
|
單缸內(nèi)燃機(jī) |
均勻 |
0.9 |
1.1 |
1.3 |
1.4 |
1.6 |
輕度沖擊 |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
|
中等沖擊 |
1.3 |
1.4 |
1.6 |
1.8 |
2 |
|
強(qiáng)烈沖擊 |
1.4 |
1.6 |
1.8 |
2 |
2.3或更大 |
每小時(shí)啟動(dòng)次數(shù) |
≤10 |
>10~60 |
>60~400 |
啟動(dòng)頻率系數(shù)K1 |
1 |
1.1 |
1.2 |
(3)小時(shí)負(fù)荷率系數(shù)K2見表3。
表3 小時(shí)負(fù)荷率系數(shù)K2
小時(shí)負(fù)荷率Jc/% |
100 |
80 |
60 |
40 |
20 |
小時(shí)負(fù)荷率系數(shù)K2 |
1 |
0.95 |
0.88 |
0.77 |
0.6 |
注:1.Jc=1h內(nèi)負(fù)荷作用時(shí)間(min)/60×_。
2.Jc<20%時(shí)按Jc=20%計(jì)。
(4)冷卻方式系數(shù)K4見表4。
表4 冷卻方式系數(shù)K4
冷卻方式 |
減速器中心距a/mm |
蝸桿轉(zhuǎn)速n1/r·min-1 |
|||
1500 |
1000 |
750 |
500 |
||
冷卻方式系數(shù)K4 |
|||||
自然冷卻 (無風(fēng)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 |
|
風(fēng)扇冷卻 |
80~710 |
1 |
2.選用條件
選用減速器應(yīng)知:原動(dòng)機(jī)、工作機(jī)類型及載荷性質(zhì),每日平均運(yùn)轉(zhuǎn)時(shí)間,啟動(dòng)頻率和環(huán)境溫度。
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