CN201966868U - Pump motor rotating speed control mode selection device for electric forklift - Google Patents
Pump motor rotating speed control mode selection device for electric forklift Download PDFInfo
- Publication number
- CN201966868U CN201966868U CN2011200656722U CN201120065672U CN201966868U CN 201966868 U CN201966868 U CN 201966868U CN 2011200656722 U CN2011200656722 U CN 2011200656722U CN 201120065672 U CN201120065672 U CN 201120065672U CN 201966868 U CN201966868 U CN 201966868U
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- China
- Prior art keywords
- pump motor
- switch
- rotating speed
- speed control
- motor controller
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- Expired - Lifetime
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model relates to a pump motor rotating speed control mode selection device for an electric forklift, which comprises a main contactor, a pump motor rotating speed control switch, a pump motor controller, a pump motor and the like, wherein a power supply is respectively connected with the input ends of a key switch and the main contactor, the output end of the key switch is simultaneously connected with the logic power port of the pump motor controller and the pump motor rotating speed control switch, the output end of the main contactor is connected with the power positive power end of the pump motor controller, the output end of the pump motor rotating speed control switch is respectively connected with the switch value ports of the pump motor controller, and the wiring terminals of the pump motor controller are connected with a pump motor. The improvement of the utility model is that the pump motor rotating speed control mode selection device also comprises a working mode selection switch, wherein the working mode selection switch is connected the corresponding port of the pump motor controller 5, and the working mode selection switch is provided with three stop positions which respectively correspond to the three working modes of the pump motor. The pump motor rotating speed control mode selection device disclosed by the utility model has a simple structure, is convenient to operate, has a wide application range, and can meet the requirements of the pump motor under different working conditions.
Description
Technical field
The utility model belongs to the AC electrical forklift technical field, is specifically related to the pump motor rotating speed control model choice device of AC electrical forklift.
Background technology
Electri forklift had three motors originally, be traction electric machine, lifting motor and steer motor, because the failure rate height of steer motor and noise are very big, so the function of lifting motor and steer motor is united two into one, the general designation pump motor, pump motor had both been carried out and had been turned to function, carried out lifting functions again, promptly was present double pump unification technique.But there are defective in existing pump motor control system and hydraulic system coupling, cause the operating state of pump motor can not satisfy user's needs, such as: the control mode about pump motor in the pump motor control system program is set at the stack operating state, so in promoting the article process, if the driver triggers suddenly and turns to working signal, then a turning velocity (500 rev/mins) and hoisting velocity (2000 rev/mins) can be superposeed in the controller, if lifting this moment breakables, the impact that so unexpected speedup is brought may cause article to damage.The fail safe of this operator scheme has much room for improvement, and to this, the reflection of American-European market is especially strong, even has once influenced the sale of balance weight type electric motor car.
Summary of the invention
For original pump control system pattern is optimized, improve the scope of application of fork truck by the method that increases model selection.The utility model is used for the pump motor rotating speed control model choice device of electri forklift.
Concrete technical solution is as follows:
Be used for the pump motor rotating speed control model choice device of electri forklift, comprise power supply 1, key switch 2, main contactor 3, pump motor speed switch 4, pump motor controller 5, pump motor 6; Power supply 1 links to each other with the input of key switch 2 with main contactor 3 respectively, key switch 2 outputs link to each other with the pump motor speed switch with pump motor controller 5 logic power ports simultaneously, main contactor 3 outputs link to each other with pump motor controller 5 power positive power source terminals, the output of pump motor speed switch 4 links to each other with the switching value port of pump motor controller 5 respectively, pump motor controller 5 binding posts are connected with pump motor 6, also comprise mode of operation selector switch 7, mode of operation selector switch 7 connects with pump motor controller 5 corresponding ports.
Described mode of operation selector switch 7 is provided with 3 retaining gears.
Useful technique effect of the present utility model is:
1, simple in structure, easy for installation, easy to operate; Make the client can the selective stacking mode of operation, be worth priority task pattern or first mode of operation greatly.
2, the characteristics that have applied range satisfy the pump motor operating state needs under the different operating modes, are applicable to all electri forklifts.
3, cost is low, has improved the car load cost performance.
4, be not subjected to the restriction of environment for use, reliability height, long service life.
Description of drawings
Fig. 1 is the utility model theory diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Electri forklift pump motor rotating speed control model choice device is a kind of choice device that triggers pump motor controller mode of operation by switch, its effect is by selecting the control model of pump motor, make motor realize different matching effects with hydraulic system, satisfy under the different operating modes of client different needs to the pump motor working speed, thereby improve the overall performance of electri forklift, widen application range of products.
Electri forklift pump motor rotating speed control model choice device operation principle as shown in Figure 1, by power supply 1, key switch 2, main contactor 3, pump motor speed switch 4, pump motor controller 5, pump motor 6, mode of operation selector switch 7 seven parts are formed, power supply 1 links to each other with the input of key switch 2 with main contactor 3 respectively, key switch 2 outputs link to each other with the pump motor speed switch with pump motor controller 5 logic power ports simultaneously, main contactor 3 outputs link to each other with pump motor controller 5 power positive power source terminals, pump motor speed switch 4 comprises a lot of switches, the output of these switches links to each other with the switching value port of pump motor controller 5 respectively, pump motor controller 5 binding posts are connected with pump motor 6, mode of operation selector switch 7 connects with pump motor controller 5 corresponding ports, comprise a lot of switches in the pump motor speed switch 4, after these switches difference closures, pump motor produces different rotating speeds.
When key switch 2 is closed, the 5 beginning built in self testings of pump motor controller, after self check was finished, main contactor 3 closures were sent power supply into the power positive pole of pump motor controller 5, and this moment, system was in holding state; Carry out gear by operation element mode selection switch 7 and select, totally 3 keep off, corresponding electrical machine working mode one, pattern two, pattern three are controlled the motor output state respectively, below these three kinds of patterns are described:
Pattern one is the overlap-add operation pattern, promptly detect when having plural speed switch closed in the pump motor speed switch 4 when pump motor controller 5, the real work speed of pump motor is the stack of all input speeds, this pattern efficient height, but power consumption is also high.This pattern is applicable to the exigent operating mode of efficient.
Pattern two is big value mode of priority, promptly detects when plural speed switch closure is arranged in the pump motor speed switch 4 when pump motor controller 5, and pump motor is only carried out the maximal rate order, does not add up.This pattern relatively is suitable for transporting breakables, even the client carries out joint operation, also can not cause the situation of door frame service speed sudden changes such as inclination, accessory, has improved the fail safe of door frame operation.
Pattern three is first mode of operation, promptly detects when having plural speed switch closed in the pump motor speed switch 4 when pump motor controller 5, and pump motor is only carried out the speed command of importing the earliest, does not add up.This pattern can effectively prevent the phenomenon of the velocity jump that misoperation causes.
Claims (2)
1. be used for the pump motor rotating speed control model choice device of electri forklift, comprise power supply (1), key switch (2), main contactor (3), pump motor speed switch (4), pump motor controller (5), pump motor (6); Power supply (1) links to each other with the input of key switch (2) with main contactor (3) respectively, key switch (2) output links to each other with the pump motor speed switch with pump motor controller (5) logic power port simultaneously, main contactor (3) output links to each other with pump motor controller (5) power positive power source terminal, the output of pump motor speed switch (4) links to each other with the switching value port of pump motor controller (5) respectively, pump motor controller (5) binding post is connected with pump motor (6), it is characterized in that: also comprise mode of operation selector switch (7), the corresponding port with pump motor controller (5) of mode of operation selector switch (7) connects.
2. the pump motor rotating speed control model choice device that is used for electri forklift according to claim 1 is characterized in that: described mode of operation selector switch (7) is provided with 3 retaining gear, 3 kinds of patterns of corresponding machine operation respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656722U CN201966868U (en) | 2011-03-15 | 2011-03-15 | Pump motor rotating speed control mode selection device for electric forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200656722U CN201966868U (en) | 2011-03-15 | 2011-03-15 | Pump motor rotating speed control mode selection device for electric forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966868U true CN201966868U (en) | 2011-09-07 |
Family
ID=44529420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200656722U Expired - Lifetime CN201966868U (en) | 2011-03-15 | 2011-03-15 | Pump motor rotating speed control mode selection device for electric forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200060A (en) * | 2017-07-11 | 2017-09-26 | 安徽合力股份有限公司 | The steering control device and its control method of a kind of electri forklift |
| CN111532142A (en) * | 2020-02-29 | 2020-08-14 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic control automatic clutch device for coal mine electric engineering vehicle |
-
2011
- 2011-03-15 CN CN2011200656722U patent/CN201966868U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200060A (en) * | 2017-07-11 | 2017-09-26 | 安徽合力股份有限公司 | The steering control device and its control method of a kind of electri forklift |
| CN107200060B (en) * | 2017-07-11 | 2023-08-04 | 安徽合力股份有限公司 | Steering control device and control method of electric forklift |
| CN111532142A (en) * | 2020-02-29 | 2020-08-14 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic control automatic clutch device for coal mine electric engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |