JPS6096399U - Forklift hydraulic motor drive circuit - Google Patents
Forklift hydraulic motor drive circuitInfo
- Publication number
- JPS6096399U JPS6096399U JP18844283U JP18844283U JPS6096399U JP S6096399 U JPS6096399 U JP S6096399U JP 18844283 U JP18844283 U JP 18844283U JP 18844283 U JP18844283 U JP 18844283U JP S6096399 U JPS6096399 U JP S6096399U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- motor drive
- hydraulic motor
- forklift hydraulic
- motor
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のフォークリフト油圧モータ駆動回路の構
成を示す回路図、第２図は第１図に示す回路の信号Ｓ１
．Ｓ２の波形図、第３図イ９口は各々第１図に示すコン
パレータ１２の出力波形図、第４図イ、咀ま各々無負荷
時および有負荷時におけるモータ１の起動電流を示す波
形図、第５図はこの考案の一実施例の構成を示す回路図
である。
４・・・・・・シャント抵抗、１５・・・・・・コンパ
レータ（以上４，１５は過電流制御部）、１７． ３２
． ３４・・・・・・抵抗、３３，３５・・・・・・可
変抵抗、Ｒａ・・・・・・リレー（以上１７．Ｒａおよ
び３２〜３５は制限値設定部）、３０・・・・・・圧力
スイッチ（負荷荷重検出部）。
第４図 ゛ −
ＬＯ２〜Ｑ３Ｓ−ｊ
１．７−−ゴに口論Figure 1 is a circuit diagram showing the configuration of a conventional forklift hydraulic motor drive circuit, and Figure 2 is a signal S1 of the circuit shown in Figure 1.
．． The waveform diagram of S2, Figure 3 A, 9 is the output waveform diagram of the comparator 12 shown in Figure 1, and Figure 4 A is a waveform diagram showing the starting current of the motor 1 under no load and with load, respectively. , FIG. 5 is a circuit diagram showing the configuration of an embodiment of this invention. 4... Shunt resistor, 15... Comparator (4 and 15 above are overcurrent control section), 17. 32
．． 34...Resistor, 33, 35...Variable resistor, Ra...Relay (17.Ra and 32 to 35 are limit value setting parts), 30... ...Pressure switch (load detection section). Figure 4 - LO2~Q3S-j 1.7--Arguing with Go
Claims (1)
荷荷重検出部の検出検果に対応して前記モータの過電流
制限値を設定する制限値設定部と、前記モータを流れる
電流が前記制限値設定部において設定した過電流制限値
を越えないように前記モータ電流を制御する過電流制御
部とを具備することを特徴とするフォークリフト油圧モ
ータ駆動回路。a load detection section that detects the load of the motor; a limit value setting section that sets an overcurrent limit value of the motor in response to the detection results of the load detection section; A forklift hydraulic motor drive circuit comprising: an overcurrent control section that controls the motor current so that the motor current does not exceed an overcurrent limit value set in a value setting section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18844283U JPS6096399U (en) | 1983-12-06 | 1983-12-06 | Forklift hydraulic motor drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18844283U JPS6096399U (en) | 1983-12-06 | 1983-12-06 | Forklift hydraulic motor drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6096399U true JPS6096399U (en) | 1985-07-01 |
Family
ID=30406522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18844283U Pending JPS6096399U (en) | 1983-12-06 | 1983-12-06 | Forklift hydraulic motor drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6096399U (en) |
-
1983
- 1983-12-06 JP JP18844283U patent/JPS6096399U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6096399U (en) | Forklift hydraulic motor drive circuit | |
| JPS5840796U (en) | speaker drive circuit | |
| JPS5950115U (en) | Protection circuit for switching type amplifier | |
| JPS6051737U (en) | power supply | |
| JPS597547U (en) | Relay drive circuit | |
| JPS59169545U (en) | Overload protection circuit | |
| JPH01119121U (en) | ||
| JPS6125042U (en) | overload protection device | |
| JPS5923298U (en) | Chiyotsupa power control circuit | |
| JPS59127325U (en) | Loudness control circuit | |
| JPS60181927U (en) | Transistor switching circuit with protection function | |
| JPS5857965U (en) | signal generator | |
| JPS6116634U (en) | Microcomputer operation control circuit | |
| JPS63152317U (en) | ||
| JPS6150339U (en) | ||
| JPH01113533U (en) | ||
| JPS59112160U (en) | current detection device | |
| JPS5826236U (en) | timer circuit | |
| JPS5890746U (en) | trigger circuit | |
| JPS60174491U (en) | Inverter device | |
| JPS60171095U (en) | Induction motor operation control device | |
| JPS63127281U (en) | ||
| JPS6162596U (en) | ||
| JPH0228147U (en) | ||
| JPS58155012U (en) | Output circuit |