WO2018019178A1 - 传动装置和空冷岛 - Google Patents

传动装置和空冷岛 Download PDF

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Publication number
WO2018019178A1
WO2018019178A1 PCT/CN2017/093752 CN2017093752W WO2018019178A1 WO 2018019178 A1 WO2018019178 A1 WO 2018019178A1 CN 2017093752 W CN2017093752 W CN 2017093752W WO 2018019178 A1 WO2018019178 A1 WO 2018019178A1
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WO
WIPO (PCT)
Prior art keywords
shaft
reducer
motor
output shaft
motor output
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PCT/CN2017/093752
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English (en)
French (fr)
Inventor
万文铭
陈东
尤亦晨
陈景然
Original Assignee
西门子机械传动(天津)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 西门子机械传动(天津)有限公司 filed Critical 西门子机械传动(天津)有限公司
Priority to CN201780038870.XA priority Critical patent/CN109526243A/zh
Priority to EP17833481.9A priority patent/EP3477826A4/en
Priority to US16/320,134 priority patent/US10951090B2/en
Publication of WO2018019178A1 publication Critical patent/WO2018019178A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Definitions

  • the utility model relates to a transmission device, in particular to a connection mode of a reducer and a motor, in particular to a transmission device for an air-cooled island.
  • the present invention is directed to a transmission device comprising:
  • An electric machine wherein the electric machine includes a motor output shaft;
  • a reducer comprising a reducer input shaft
  • the motor output shaft is directly connected to the reducer input shaft.
  • the installation length along the axial direction of the motor can be reduced, and the installation space can be saved.
  • the coupling can be omitted by this installation method, which further saves costs.
  • the reducer end cap of the reducer at the input shaft of the reducer is designed to be engageable with the motor end caps at the motor output shaft of the electric machine, wherein the reducer end The cover and the motor end cover are bolted to each other. Since the motor output shaft is directly connected to the input shaft of the reducer, the axial installation length of the motor is small during vertical installation, and the direct mating strength of the motor and the reducer is further reduced due to the elimination of the coupling.
  • the motor mounting flange can be omitted, and the motor end cover and the reducer end cover can be directly connected.
  • the reducer end cover can be designed to be wider to match the motor end cover.
  • the input shaft of the reducer is a solid shaft
  • the solid shaft is provided with external splines
  • the output shaft of the motor is a hollow shaft
  • the hollow shaft is provided with internal splines.
  • the external spline and the inner spline are connectable to each other.
  • the input shaft of the reducer is a hollow shaft, and the hollow shaft is provided with internal splines.
  • the motor output shaft is a solid shaft, and the solid shaft is provided with external splines, wherein the external splines and the internal splines can be coupled to each other.
  • the direct connection stiffness of the two can be made better.
  • the reducer input shaft is connected to the motor output shaft by a key.
  • the reducer input shaft is connected to the motor output shaft by a positive fit.
  • the processing of this embodiment is simpler and can further reduce costs.
  • Another object of the present invention is to provide an air-cooled island comprising the transmission of any of the above embodiments.
  • Figure 1 shows a schematic view of a transmission according to the prior art
  • Figure 2 shows a schematic view of a transmission in accordance with the present invention.
  • FIG. 1 shows a schematic view of a transmission 200 in accordance with the prior art.
  • the transmission device according to the prior art 200 includes a motor 10 and a speed reducer 30.
  • the motor 10 includes a motor output shaft 11 for outputting power.
  • the reducer 30 includes a reducer input shaft 31 that is connectable to the motor output shaft 11 and that is driven by the motor output shaft 11 to transmit power to the reducer output shaft 32, thereby driving the fan blades 40 for, for example, achieving Cooling of water vapor. It is conceivable that the reducer output shaft 32 can also be connected to other loads.
  • a coupling 20 is usually provided according to the prior art.
  • the specific connection mode of the coupling is prior art, and details are not described herein again.
  • the motor often needs to adopt a vertical position due to the arrangement position requirements of the motor 10, the reducer 30, and the fan blade 40. Installation location.
  • the coupling 20 is used to dock the motor output shaft 11 and the reducer input shaft 31, the length of the transmission in the axial direction of the motor is often large, and an additional motor mounting flange 60 is required for the motor 10 on the shaft. Supporting.
  • the present invention provides a new connection method.
  • a motor mounting flange 60 is no longer provided between the motor 10 and the speed reducer 30.
  • the motor output shaft 11 of the motor 10 is directly connected to the reducer input shaft 31, thereby eliminating the coupling 20.
  • the motor output shaft 11 and the reducer input shaft 31 are splined.
  • the reducer input shaft 31 is a solid shaft, the solid shaft is provided with external splines, and the motor output shaft 11 is a hollow shaft, and the hollow shaft is provided with internal splines, wherein the outer shaft The spline and the inner spline can be coupled to each other.
  • the reducer input shaft 31 is a hollow shaft, the hollow shaft is provided with internal splines, and the motor output shaft 11 is a solid shaft, and the solid shaft is provided with external splines, wherein the outer shaft
  • the spline and the inner spline can be coupled to each other.
  • the reducer end cap 33 at the reducer input shaft 31 of the speed reducer 30 is correspondingly designed to have a larger diameter than the conventional end cap, thereby enabling it to be coupled to the motor output shaft 11 of the motor 10
  • the motor end caps 13 are joined to each other directly on the end faces, wherein the reducer end caps 33 and the motor end caps 13 are fastened to each other by bolts 41.
  • the reducer input shaft 31 and the motor output shaft 11 may be connected by a key.
  • the motor output shaft 11 can be arranged as a hollow shaft into which the reducer input shaft 31 projects concentrically.
  • the reducer input shaft 31 it is also possible to design the reducer input shaft 31 as a hollow shaft into which the motor output shaft 11 projects concentrically.
  • a key is provided between the reducer input shaft 31 and the motor output shaft 11.
  • the reducer input shaft 31 and the motor output shaft 11 can be simply connected by an interference fit.
  • the motor output shaft 11 can be arranged as a hollow shaft, and the reducer input shaft 31 projects into the hollow shaft in a concentric manner and is connected in an interference fit with the hollow shaft.
  • the reducer input shaft 31 can also be designed as a hollow The shaft, the motor output shaft 11 extends concentrically into the hollow shaft.
  • the transmission system 100 as shown in the embodiment of the present invention is provided in the air cooling island, which can effectively save the installation space, especially the longitudinal installation space; and the motor is omitted.
  • the flange is installed, thereby further saving costs.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

一种传动装置(100)和一种空冷岛，包括：一个电机(10)，其中所述电机(10)包括一个电机输出轴(11)；以及一个减速机(30)，所述减速机(30)包括一个减速机输入轴(31)；其中所述电机输出轴(11)与所述减速机输入轴(31)直接连接。

Description

传动装置和空冷岛 技术领域
本实用新型涉及一种传动装置，尤其是涉及一种减速机与电机的连接方式，特别是用于空冷岛的传动装置。
背景技术
在发电厂的空冷岛应用中，需要利用电机对减速机进行驱动，进而通过减速机驱动风机叶片实现水蒸气的冷却。电机输出轴与减速机输入轴之间通常是通过联轴器进行链接的，由此需要一个额外的大的电机安装法兰来对电机进行支承。这样的安装方式对空间要求高，成本也相对较高。
实用新型内容
为了解决上述一个或多个问题，本实用新型旨在提供一种传动装置，包括：
一个电机，其中所述电机包括一个电机输出轴；以及
一个减速机，所述减速机包括一个减速机输入轴；
其特征在于，所述电机输出轴与所述减速机输入轴直接连接。
通过采用所述电机输出轴与所述减速机输入轴直接连接的方式，能够降低沿电机轴向的安装长度，节省安装空间。而且通过这种安装方式能够省去联轴器，进一步节约了成本。
根据一种有利的实施方式，所述减速机的位于减速机输入轴处的减速机端盖被设计为与所述电机的电机输出轴处的电机端盖能够彼此接合，其中所述减速机端盖与所述电机端盖彼此通过螺栓连接。由于采用所述电机输出轴与所述减速机输入轴直接连接的方式，使得电机在竖直安装时轴向安装长度小，而且由于省去了联轴器，电机与减速器的直接对接强度更好，因此可以省去电机安装法兰，而采用将电机端盖与减速机端盖直接对接的方式。为了更好地实现电机端盖与减速机端盖直接对接，可以将减速机端盖设计地更为宽大，以与电机端盖相匹配。
根据一种有利的实施方式，所述减速机输入轴为实心轴，所述实心轴上设有外花键，以及所述电机输出轴为空心轴，所述空心轴内设有内花键，其中所述外花键与所述内花键能够相互配合连接。
根据另一种有利的实施方式，所述减速机输入轴为空心轴，所述空心轴内设有内花键， 以及所述电机输出轴为实心轴，所述实心轴上设有外花键，其中所述外花键与所述内花键能够相互配合连接。
通过将电机输出轴与减速机输入轴设计为花键连接，能够使得两者的直接连接刚度更好。
根据另一种有利的实施方式，所述减速机输入轴与所述电机输出轴通过键连接。
根据另一种有利的实施方式，所述减速机输入轴与所述电机输出轴通过盈配合连接。这种实施方式的加工更为简单，能够进一步降低成本。
本实用新型的另一个目的是提供一种空冷岛，其包括如上述各实施方式中任意一项所述的传动装置。
附图说明
以下附图仅旨在于对本实用新型做示意性说明和解释，并不限定本实用新型的范围。其中，
图1示出了依据现有技术的一种传动装置的示意图；
图2示出了依据本实用新型的一种传动装置的示意图。
附图标记列表：
100；200  传动装置
10        电机
11        电机输出轴
13        电机端盖
20        联轴器
30        减速机
31        减速机输入轴
32        减速机输出轴
33        减速机端盖
40        风机叶片
41        螺栓
具体实施方式
为了对本实用新型的技术特征、目的和效果有更加清楚的理解，现对照附图说明本实用新型的具体实施方式。
图1示出了依据现有技术的一种传动装置200的示意图。该依据现有技术的传动装置 200包括一个电机10，一个减速机30。电机10包括一个电机输出轴11，用于输出动力。减速机30包括一个减速机输入轴31，其能够与电机输出轴11连接，在电机输出轴11的驱动下，将动力传递到减速机输出轴32，进而驱动风机叶片40，用于例如实现对水蒸气的冷却。可以想到的是，减速机输出轴32还可以连接其他负载。
为了实现电机输出轴11和减速机输入轴31之间的连接，根据现有技术，通常设有联轴器20。联轴器的具体连接方式为现有技术，在此不再赘述。需要指出的是，在将该传动装置200用于发电厂的空冷岛中用以驱动风机叶片时，由于电机10、减速机30和风机叶片40的布置位置要求等，电机常常需要采取竖直的安装位置。当采用联轴器20对电机输出轴11与减速机输入轴31进行对接时，往往使得传动装置在电机轴向的长度较大，且还需要一个额外的电机安装法兰60对电机10在轴向进行支撑。
为了获得更好地安装空间，同时减少用于安装的零部件，本实用新型提供了一种新的连接方式。如图2所示，电机10与减速机30之间不再设有电机安装法兰60。电机10的电机输出轴11与减速机输入轴31采取直接连接的方式，进而省去了联轴器20。如图所述，的电机输出轴11与减速机输入轴31通过花键连接。具体而言，减速机输入轴31为实心轴，所述实心轴上设有外花键，以及所述电机输出轴11为空心轴，所述空心轴内设有内花键，其中所述外花键与所述内花键能够相互配合连接。或者，所述减速机输入轴31为空心轴，所述空心轴内设有内花键，以及所述电机输出轴11为实心轴，所述实心轴上设有外花键，其中所述外花键与所述内花键能够相互配合连接。
由于使得电机输出轴11与减速机输入轴31直接连接，使得沿电机轴向方向的安装长度减少，由此也无需采用电机安装法兰60对电机10进行支承。因此，相应地，减速机30的减速机输入轴31处的减速机端盖33比传统的端盖设计地具有更大的直径，由此使其能够与所述电机10的电机输出轴11处的电机端盖13彼此直接在端面上接合，其中所述减速机端盖33与所述电机端盖13彼此通过螺栓41进行紧固连接。
虽然图中没有具体示出，但是除了上述实施方式所述的采用花键连接的方案以外，还可以所述减速机输入轴31与所述电机输出轴11通过键连接。例如，可以将电机输出轴11设置为空心轴，减速机输入轴31对心地伸入到所述空心轴中。当然，还可以将所述减速机输入轴31设计为空心轴，电机输出轴11对心地伸入到所述空心轴中。其中在减速机输入轴31与所述电机输出轴11之间设置键。
又或者，可以简单地将所述减速机输入轴31与所述电机输出轴11通过过盈配合进行连接。例如可以将电机输出轴11设置为空心轴，减速机输入轴31对心地伸入到所述空心轴中，并与所述空心轴过盈配合连接。当然，还可以将所述减速机输入轴31设计为空心 轴，电机输出轴11对心地伸入到所述空心轴中。
虽说明书中并未示出空冷岛，但在空冷岛中设置如本实用新型的实施例所示的传动系统100，能够有效地节省安装空间，尤其是纵向的安装空间；而且还省去了电机安装法兰，由此进一步地节约了成本。
应当理解，虽然本说明书是按照各个实施例描述的，但并非每个实施例仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
以上所述仅为本实用新型示意性的具体实施方式，并非用以限定本实用新型的范围。任何本领域的技术人员，在不脱离本实用新型的构思和原则的前提下所作的等同变化、修改与结合，均应属于本实用新型保护的范围。

Claims (7)

  1. 一种传动装置(100)，包括：
    一个电机(10)，其中所述电机(10)包括一个电机输出轴(11)；以及
    一个减速机(30)，所述减速机(30)包括一个减速机输入轴(31)；
    其特征在于：
    所述电机输出轴(11)与所述减速机输入轴(31)直接连接。
  2. 根据权利要求1所述的传动装置(100)，其特征在于：
    所述减速机(30)的位于减速机输入轴(31)处的减速机端盖(33)被设计为与所述电机(10)的电机输出轴(11)处的电机端盖(13)能够彼此接合，其中所述减速机端盖(33)与所述电机端盖(13)彼此通过螺栓(41)连接。
  3. 根据权利要求1或2所述的传动装置(100)，其特征在于：
    所述减速机输入轴(31)为实心轴，所述实心轴上设有外花键，以及
    所述电机输出轴(11)为空心轴，所述空心轴内设有内花键，其中
    所述外花键与所述内花键能够相互配合连接。
  4. 根据权利要求1或2所述的传动装置(100)，其特征在于：
    所述减速机输入轴(31)为空心轴，所述空心轴内设有内花键，以及
    所述电机输出轴(11)为实心轴，所述实心轴上设有外花键，其中
    所述外花键与所述内花键能够相互配合连接。
  5. 根据权利要求1或2所述的传动装置(100)，其特征在于：
    所述减速机输入轴(31)与所述电机输出轴(11)通过键连接。
  6. 根据权利要求1或2所述的传动装置(100)，其特征在于：
    所述减速机输入轴(31)与所述电机输出轴(11)通过盈配合连接。
  7. 一种空冷岛，其特征在于，包括如权利要求1至6中任意一项所述的传动装置。
PCT/CN2017/093752 2016-07-26 2017-07-20 传动装置和空冷岛 WO2018019178A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201780038870.XA CN109526243A (zh) 2016-07-26 2017-07-20 传动装置和空冷岛
EP17833481.9A EP3477826A4 (en) 2016-07-26 2017-07-20 TRANSMISSION DEVICE AND AIR COOLING ISLAND
US16/320,134 US10951090B2 (en) 2016-07-26 2017-07-20 Transmission device and air-cooling island

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CN201620819700.8U CN206060447U (zh) 2016-07-26 2016-07-26 传动装置和空冷岛
CN201620819700.8 2016-07-26

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CN206060447U (zh) * 2016-07-26 2017-03-29 西门子机械传动(天津)有限公司 传动装置和空冷岛
CN107299982A (zh) * 2017-08-30 2017-10-27 沃德传动（天津）股份有限公司 空冷岛减速机一体式干燥井结构

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