公稱傳 動比 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
|
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
原動機 |
載荷性質(zhì) (工作機特性) |
每日工作時間 /h |
||||
≤0.5 |
> 0.5 ~ 1 |
> 1 ~ 2 |
> 2 ~ 10 |
> 10 |
||
KA |
||||||
電動機,汽輪機燃氣輪機 (啟動轉(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 |
|
強烈沖擊 |
1.1 |
1.2 |
1.3 |
1.5 |
1.75 |
|
汽輪機,燃氣輪機,液動機 或電動機(啟動轉(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 |
|
強烈沖擊 |
1.1 |
1.3 |
1.4 |
1.6 |
1.9 |
|
多缸內(nèi)燃機 |
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 |
|
強烈沖擊 |
1.3 |
1.4 |
1.5 |
1.8 |
2 |
|
單缸內(nèi)燃機 |
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 |
|
強烈沖擊 |
1.4 |
1.6 |
1.8 |
2 |
2.3 或更大 |
注:工作機工作情況舉例如下。
均勻載荷:發(fā)電機、均勻裝料的帶式或板式輸送機,螺旋輸送機,輕型卷揚機,包裝機械,機床進給裝置,通風(fēng)機,輕型離心機,離心泵,稀液料和密度均勻物料攪拌機和混合機,按最大剪切力矩設(shè)計的沖壓機。
輕度沖擊:不均勻裝料的帶式或板式輸送機,機床主傳動裝置,重型卷揚機,起重機旋轉(zhuǎn)機構(gòu),工礦通風(fēng)機,重型離心機,離心泵,粘性液料及密度不均勻物料攪拌機和混合機,多缸柱塞泵,給料泵,擠壓機,壓延機,回轉(zhuǎn)窯,鋅、鋁帶材、線材、型材軋機。
中等沖擊:橡膠擠壓機,經(jīng)常起動的塑料混合機,輕型球磨機,木材加工機械,鋼坯初軋機,單缸活塞泵。
強烈沖擊:鏟斗鏈傳動,篩傳動裝置,單斗挖土機,重型球磨機,橡膠混煉機,冶金機械,重型給料泵,旋轉(zhuǎn)式鉆探設(shè)備,壓磚機,除鱗機,冷軋機,壓塊機。
( 2 )啟動頻率系數(shù)見表 2 。
表 2 啟動頻率系數(shù) K1
每小時啟動次數(shù) |
≤10 |
> 10 ~ 60 |
> 60 ~ 400 |
啟動頻率系數(shù) K1 |
1 |
1.1 |
1.2 |
( 3 )小時負荷率系數(shù) K2 見表 3 。
表 3 小時負荷率系數(shù) K2
小時負荷率 Jc/% |
100 |
80 |
60 |
40 |
20 |
小時負荷率系數(shù) K2 |
1 |
0.95 |
0.88 |
0.77 |
0.6 |
注: 1.Jc=1h 內(nèi)負荷作用時間( min ) /60×100% 。
2.Jc < 20% 時按 Jc=20% 計。
( 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:原動機、工作機類型及載荷性質(zhì),每日平均運轉(zhuǎn)時間,啟動頻率和環(huán)境溫度。