JPH0437539U - - Google Patents
Info
- Publication number
- JPH0437539U JPH0437539U JP8021790U JP8021790U JPH0437539U JP H0437539 U JPH0437539 U JP H0437539U JP 8021790 U JP8021790 U JP 8021790U JP 8021790 U JP8021790 U JP 8021790U JP H0437539 U JPH0437539 U JP H0437539U
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- motor
- turns
- detection switch
- contact
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Protection Of Generators And Motors (AREA)
Description
第１図は本考案の一実施例の模式図、第２図は
本考案の一実施例における電動機を起動する為の
操作回路の一例を示す回路図、第３図は本考案の
一実施例における電動機の電源回路の一例を示す
回路図、第４図は竪形ミルの一例を示す断面図で
ある。
図中１はケーシング、２は粉砕テーブル、３は
被粉砕物、４は粉砕ローラ、９は電動機、１０は
回転軸（駆動回転部）、１１は検出スイツチ、Ａ
は操作回路、Ｅ１は操作電源、Ｔ……オフデレー
タイマー、ＲＹ３ａ，Ｔａは接点を示す。
Figure 1 is a schematic diagram of an embodiment of the present invention, Figure 2 is a circuit diagram showing an example of an operating circuit for starting an electric motor in an embodiment of the invention, and Figure 3 is an embodiment of the invention. FIG. 4 is a circuit diagram showing an example of a power supply circuit of an electric motor, and FIG. 4 is a sectional view showing an example of a vertical mill. In the figure, 1 is a casing, 2 is a crushing table, 3 is an object to be crushed, 4 is a crushing roller, 9 is an electric motor, 10 is a rotating shaft (drive rotating part), 11 is a detection switch, A
is an operating circuit, E1 is an operating power source, T is an off-delay timer, and RY3a and Ta are contacts.
Claims (1)
えた竪形ミルにおいて、前記電動機の駆動回転部
に、該駆動回転部の回転の開始を検出する検出ス
イツチを設け、更に前記電動機を起動する為の操
作回路中に、電動機の起動指令が出されると同時
にカウントを開始するオフデレータイマーのタイ
ムアツプによりオフとなる接点と、前記検出スイ
ツチにより駆動回転部の回転の開始の検出により
オンとなる接点とを前記操作回路の操作電源に対
し並列に接続したことを特徴とする竪形ミルの電
動機保護装置。 In a vertical mill equipped with a grinding table rotationally driven by an electric motor, a detection switch for detecting the start of rotation of the drive rotation unit is provided on the drive rotation unit of the electric motor, and an operation circuit for starting the electric motor. During the operation, a contact that turns off when the off-delay timer times up, which starts counting at the same time as the start command of the motor is issued, and a contact that turns on when the detection switch detects the start of rotation of the drive rotating part are operated as described above. A motor protection device for a vertical mill characterized by being connected in parallel to the operating power source of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8021790U JPH0437539U (en) | 1990-07-27 | 1990-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8021790U JPH0437539U (en) | 1990-07-27 | 1990-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0437539U true JPH0437539U (en) | 1992-03-30 |
Family
ID=31625076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8021790U Pending JPH0437539U (en) | 1990-07-27 | 1990-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437539U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013010175A (en) * | 2011-06-29 | 2013-01-17 | Compagnie Engrenages Et Reducteurs-Messian-Durand | Driving device for grinder, and corresponding grinder |
-
1990
- 1990-07-27 JP JP8021790U patent/JPH0437539U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013010175A (en) * | 2011-06-29 | 2013-01-17 | Compagnie Engrenages Et Reducteurs-Messian-Durand | Driving device for grinder, and corresponding grinder |
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