CN203209919U - 一种装配式大齿圈 - Google Patents
一种装配式大齿圈 Download PDFInfo
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- CN203209919U CN203209919U CN 201320030735 CN201320030735U CN203209919U CN 203209919 U CN203209919 U CN 203209919U CN 201320030735 CN201320030735 CN 201320030735 CN 201320030735 U CN201320030735 U CN 201320030735U CN 203209919 U CN203209919 U CN 203209919U
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- gear ring
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- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005242 forging Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
本实用新型提供的一种装配式大齿圈，包括齿圈座、齿弧、连接板、定位销、键、连接螺栓，其特征在于：所述齿圈座由2～4段焊接结构的分齿圈座组成，分齿圈座间通过定位销和连接螺栓连接固定成整圆；所述齿弧采用锻件精加工成形，并通过键、连接板和链接螺栓被精确固定在分齿圈座上。装配式大齿圈克服了大型铸造齿轮毛坯变形量大、铸造缺陷多、毛坯余量大、材料强度低、大模数齿型加工精度低等缺点，简化了大直径齿圈制造的难度，大大降低了大直径齿圈的制造成本，同时还能提高大齿圈的精度和强度。
Description
一种装配式大齿圈
技术领域
[0001] 本实用新型涉及一种装配式大齿圈，属于机械加工制造领域。
背景技术
[0002] 大直径的齿圈主要用于回转窑、管磨机、钢球磨煤机等设备，是其传动系统中最后一个环节。大齿圈的直径普遍超过5米，而且有逐渐增大的趋势，目前最大的直径已经超过10米。大齿圈的另一个特点是齿轮的模数大，可达到40。图1为钢球磨煤机传动系统示意图。
[0003]目前主要是通过铸造的方式获得大齿圈的毛坯，之后进行机械加工制造大齿圈。为了便于运输和安装，通常大齿圈被铸造成两半，组合在一起进行机械加工，加工好后拆分运输，在安装现场 重新组装。由于大齿圈的直径越来越大，模数也越来越大，所以无论是铸造毛坯还是加工齿形都变得更加困难。不但制造成本大为增加，大齿圈的精度也很难以保证。
发明内容
[0004] 本实用新型提供的一种装配式大齿圈，能够简化大直径齿圈制造的难度，同时提高大直径齿圈的精度和强度。
[0005] 图2、图3、图4是装配式大齿圈的结构图，装配式大齿圈由齿圈座1、齿弧2、连接板3、键4、连接螺栓5、连接螺栓7和定位销8组成。
[0006] 齿圈座I为钢板焊接结构，具有成本低、易于加工制造、结构稳定性好、不易变形等特点。依据大齿圈具体尺寸，齿圈座可分为2〜4段。各段齿圈座通过连接螺栓7和定位销8组合成一个整圆进行机械加工，在齿圈座的外圆加工有键槽，用于齿弧的圆周方向定位；齿圈座的外圆上的螺栓孔用于固定齿弧2和连接板3。
[0007] 齿弧2由锻件精加工而成，齿形精度非常高；同时锻件齿弧与铸造的齿圈齿弧相t匕，齿面接触强度和齿根弯曲强度均大幅度提高。
[0008] 连接板3用于连接固定各段齿弧2 ;通过键4和连接螺栓5，齿弧2被精确定位齿圈座外圆上。
附图说明
[0009] 图1为钢球磨煤机传动系统示意图；.[0010] 图2为装配式大齿圈的结构图；
[0011] 图3为图2的局部放大视图；
[0012] 图4为图2的局部剖视图；
[0013] 图5为齿圈座的结构图；
[0014] 图6为齿弧的结构图；
[0015] 附图标记说明[0016] 1-齿圈座；2-齿弧；3-连接板；4-键；5-连接螺栓；6_分齿圈座；7_连接螺栓；8-定位销；
具体实施方式
[0017] 为使本实用新型更明显易懂，兹以一优选实施例，并配合附图作详细说明如下。
[0018] 图2为装配式大齿圈的结构图,齿圈座I由2〜4段分齿圈座6组成,每段分齿圈座6由钢板焊接而成。各分齿圈座6通过端面的连接螺栓7和定位销8相互连接成一个整圆。然后对整个齿圈座的外圆进行精加工，并在外圆表面上加工键槽和螺栓孔，其中键槽用于齿弧的圆周方向定位。
[0019] 齿弧2由锻件精加工而成，其内圆弧面与齿圈座I外圆相吻合，齿弧2的内圆弧面加工有键槽和螺纹孔，齿弧2通过键4和连接螺栓5被精确固定在齿圈座I上。
[0020] 连接板3由钢板加工而成，用于连接固定各段齿弧2，并通过连接螺栓5与齿圈座I紧固在一起。
[0021] 装配式大齿圈在制造厂加工、组装、检测合格后，按齿圈座I的分段方式进行拆分、运输，在安装现场重新进行组装。
Claims (3)
1.一种装配式大齿圈包括齿圈座、齿弧、连接板、定位销、键、连接螺栓，其特征在于:所述齿圈座由2〜4段分齿圈座组成，分齿圈座间通过定位销和连接螺栓连接固定成整圆；所述齿弧通过键、连接板和链接螺栓固定在分齿圈座上。
2.根据权利要求1的装配式大齿圈，其特征在于:所述分齿圈座为钢板焊接结构。
3.根据权利要求1的装配式大齿圈，其特征在于:所述齿弧为精加工锻件。
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867687A (zh) * | 2014-03-10 | 2014-06-18 | 北京航空航天大学 | 组合式分段人字内齿圈 |
| WO2017054931A1 (de) * | 2015-10-01 | 2017-04-06 | Sew-Eurodrive Gmbh & Co. Kg | Zahnrad mit schrägverzahnung und segment für ein zahnrad |
| CN110202331A (zh) * | 2019-06-18 | 2019-09-06 | 梁如松 | 利用30锰钢钢板连接组合非标大齿轮 |
| EP3643947A1 (en) * | 2018-10-23 | 2020-04-29 | Hofmann Engineering PTY Ltd | Girth gear |
-
2013
- 2013-01-21 CN CN 201320030735 patent/CN203209919U/zh not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867687A (zh) * | 2014-03-10 | 2014-06-18 | 北京航空航天大学 | 组合式分段人字内齿圈 |
| CN103867687B (zh) * | 2014-03-10 | 2016-06-08 | 北京航空航天大学 | 组合式分段人字内齿圈 |
| WO2017054931A1 (de) * | 2015-10-01 | 2017-04-06 | Sew-Eurodrive Gmbh & Co. Kg | Zahnrad mit schrägverzahnung und segment für ein zahnrad |
| AU2016333343B2 (en) * | 2015-10-01 | 2020-09-10 | Sew-Eurodrive Gmbh & Co. Kg | Gear with helical toothing, and segment for a gear |
| EP3643947A1 (en) * | 2018-10-23 | 2020-04-29 | Hofmann Engineering PTY Ltd | Girth gear |
| CN110202331A (zh) * | 2019-06-18 | 2019-09-06 | 梁如松 | 利用30锰钢钢板连接组合非标大齿轮 |
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