CN203254971U - Braking system of electric stacker - Google Patents
Braking system of electric stacker Download PDFInfo
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- CN203254971U CN203254971U CN 201320250884 CN201320250884U CN203254971U CN 203254971 U CN203254971 U CN 203254971U CN 201320250884 CN201320250884 CN 201320250884 CN 201320250884 U CN201320250884 U CN 201320250884U CN 203254971 U CN203254971 U CN 203254971U
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Abstract
The utility model discloses a braking system of an electric stacker. The braking system of the electric stacker comprises a battery set, a permanent-magnet brushless hub motor, a hub driving motor controller, a handle assembly, an oil tank, a hydraulic unit, a hydraulic braking assembly and an energy storing device module, wherein an accelerator, a direction switch and a helm switch of the handle assembly are connected to the hub driving motor controller through cable harnesses, and provide operation signals for the hub driving motor controller. The energy storing device module comprises an energy storing device, a multi-way valve block and a solenoid valve, wherein the solenoid valve is connected with the hub driving motor controller through a cable harness, and the solenoid valve is used for controlling hydraulic braking. A hydraulic brake of the hydraulic braking assembly acts on a brake disc, the brake disc is fixed on the side surface of a driving wheel of the permanent-magnet brushless hub motor, and the brake disc rotates along with the permanent-magnet brushless hub motor. According to the braking system of the electric stacker, the energy storing device stores redundant oil used for lifting action carried out by a hydraulic station, and the redundant oil is supplied to the hydraulic brake to be used. Therefore, resources of the overall electric stacker are saved, and the braking system of the electric stacker has the unparalleled advantage.
Description
Technical field
The utility model relates to a kind of electric stacker brake system, and relates in particular to the electric stacker brake system that wheel hub motor directly drives, and belongs to electric automobiles.
Background technology
Electric stacker is a kind of novel storage facilities, uses battery to provide power source, all-electric drive pattern.Mainly be used in logistics, storage links, born the stacking function of goods.
In the prior art, the electric stacker brake system generally adopts powerless magnetic brake to finish.Do like this and usually can exist so that the electric stacker complex structure, easy care or safeguard more complicated does not need the service personnel of specialty, has promoted cost; And adopt electromagnetic power-off brake to cause energy consumption higher, and lock torque is less can not satisfy some special occasions, and the not good reaction of braking effect is insensitive simultaneously.
The utility model content
Technical problem to be solved in the utility model is for the deficiency in the present technology, and provide a kind of electric stacker brake system, this brake system structure is fairly simple, adopt hydraulic energy storage device energy storage when hydraulic pump works, beginning braking during standstill after driving service brake action is finished, good braking effect, fault rate is lower, do not need the professional to safeguard, promoted work efficiency.The braking method that the utility model relates to possesses good programmability, good energy conversion efficiency; Especially can satisfy the performance of parking brake of all occasions.
Technical problem to be solved in the utility model can be achieved through the following technical solutions.
A kind of electric stacker brake system comprises battery pack, pm brushless in-wheel motor, drive hub electric machine controller, handle assembly, fuel tank, hydraulic pressure unit, hydraulic braking assembly, closed-center system module;
Described battery pack, drive hub electric machine controller, pm brushless in-wheel motor connect by cable, and the drive hub electric machine controller sends the battery pack electric energy to pm brushless in-wheel motor;
Described handle assembly comprises accelerator, direction switch, tiller switch, switch hoists; It is characterized in that,
Accelerator in the described handle assembly, direction switch, tiller switch use core of a cable to be connected to the hub driven motor controller, provide operation signal to the hub driven motor controller;
Described hydraulic pressure unit comprises oil pump, pump motor, pump motor controller, lift oil tank; Described oil pump and pump motor integrate, and are connected by oil pipe between described oil pump, lift oil tank and the fuel tank, with oil transmission in the fuel tank; Be connected by core of a cable between described pump motor, pump motor controller and the battery pack, the switch that hoists in the described handle assembly connects the pump motor controller by core of a cable, and described pump motor controller is passed to pump motor according to on-off signal with the battery pack electric energy;
Described closed-center system module comprises accumulator, multiway valve piece, electromagnetic valve, described accumulator interface connected with multiple valve piece, be connected by oil pipe between described multiway valve piece and fuel tank, the oil pump, the multiway valve piece is equipped with electromagnetic valve, and described electromagnetic valve is connected by core of a cable with the drive hub electric machine controller and is used for the control hydraulic braking; Described multiway valve piece is connected by oil pipe with the hydraulic braking assembly;
Described hydraulic braking assembly comprises hydraulic brake, brake disc, and hydraulic brake acts on the brake disc, and brake disc is fixed on the drive wheel side of pm brushless in-wheel motor, rotates with pm brushless in-wheel motor.
Electric stacker of the present utility model uses pm brushless in-wheel motor directly to drive vehicle operating, has saved general reducing gear or speed reduction gearing, has saved R﹠D costs.Aspect brake system, the utility model adopts automatically controlled control service brake, whether the drive hub electric machine controller carries out regenerative brake by detection accelerator, the identification of direction switch signal, so that stopping distance can carry out Software match according to different vehicles, existing good braking effect, reclaim again unnecessary electric energy, improved the car load flying power; After service brake is finished, then carry out hydraulic parking braking, hydraulic braking possesses highly sensitive, lock torque is large, satisfy the demand of the larger Parking moment of needs when forklift is fully loaded climbs maximum grade, simultaneously, accumulator stores the oil mass that it is unnecessary that Hydraulic Station is carried out the action that hoists for hydraulic brake, further save the car load resource, possessed incomparable preceence.
Description of drawings
Fig. 1 is electric stacker brake system scheme drawing of the present utility model.
Fig. 2 is the structured flowchart of electric stacker braking control system of the present utility model.
Fig. 3 is electric stacker brake control method schematic flow sheet of the present utility model.
Wherein,
The 1-battery pack; The 2-pm brushless in-wheel motor; 3-hub motor control device; The 4-handle assembly; The 5-fuel tank; The 6-hydraulic pressure unit; 7-hydraulic braking assembly; 8-closed-center system module; 9-pump motor controller; The 41-lifting switch; The 42-accelerator; The 43-direction switch; 44-tiller switch; The 61-gear type pump; The 62-pump motor; The 63-lift oil tank; The 71-hydraulic brake; The 72-brake disc; The 81-accumulator; The 82-electromagnetic valve; 83-multiway valve piece.
The specific embodiment
The utility model is described in further detail according to the drawings and specific embodiments for the below:
The utility model provides a kind of electronic carrying forklift brake system, as shown in Figure 1, battery pack 1, pm brushless in-wheel motor 2, drive hub electric machine controller 3, handle assembly 4, fuel tank 5, hydraulic pressure unit 6, hydraulic braking assembly 7, closed-center system module 8, pump motor controller 9 have been comprised.
4 of battery pack 1, pm brushless in-wheel motor 2, drive hub electric machine controller 3, handle assembly connect by core of a cable, and driving and the braking of car load finished the delivery of electrical energy of battery pack 1 by hub driven motor controller 3 to pm brushless in-wheel motor 2 by the signal that detects handle assembly 4.
Handle assembly 4 comprises the switch 41 that hoists, accelerator 42, direction switch 43, tiller switch 44 as shown in Figure 1 and Figure 2; Accelerator 42, direction switch 43, tiller switch 44 use core of a cable to be connected to hub driven motor controller 3; Hydraulic pressure unit 6 comprises oil pump 61, pump motor 62, pump motor controller 9, lift oil tank 63, oil pump 61 and pump motor 62 integrate, pump motor controller 9, the switch 41 that hoists are connected connection by core of a cable with battery pack, send battery pack 1 electric energy to pump motor 62 according to the on-off signal of the switch 41 that hoists and drive oil pumps 61 operations;
As shown in Figure 1 and Figure 2, closed-center system module 8, fuel tank 5, hydraulic braking assembly 7 connect by oil pipe, and hydraulic braking assembly 7 comprises hydraulic brake 71, brake disc 72, and brake disc 72 is installed on the drive wheel of pm brushless in-wheel motor 2; Closed-center system module 8 comprises accumulator 81, electromagnetic valve 82, the interface of accumulator 81 is installed on the multiway valve piece 83, multiway valve piece 83 is connected by oil pipe by between oil pipe and oil pump 61, the fuel tank 5, electromagnetic valve 82 is installed on the multiway valve piece 83, and electromagnetic valve 82 is connected with the hub driven motor controller and is connected by core of a cable; Energy in the accumulator 81 is provided by oil pump 61, and when carry out promoting action, when oil pump 61 enters lift oil tank 63 with oil pressure, a part of oil will enter accumulator 81 storages; Detect when satisfying the braking during standstill condition at hub driven motor controller 3,82 actions of control electromagnetic valve, oil pressure in the accumulator 81 is entered in the hydraulic brake 71, hydraulic brake 71 acts on the drive wheel of pm brushless in-wheel motor 2 by brake disc 72, forces the drive wheel of pm brushless in-wheel motor 2 to be stopped fully extremely.
Referring to Fig. 3, the control method of above-mentioned a kind of electric stacker brake system, it comprises following step:
After step S1, operator began to operate vehicle, hub driven motor controller 3 was according to signal driver pm brushless in-wheel motor 2 operations of handle assembly 4, and vehicle is in normal driving mode;
Step S2, under normal driving mode, hub driven motor controller 3 constantly according to accelerator 42 signals in the handle assembly 4 whether be 0, whether whether direction switch 43 exist the signal, tiller switch 44 signals that advance or retreat invalid, simultaneously, need to judge that whether unusually or fault self, execution in step S5 when satisfying, otherwise continue the current driving drive pattern;
Step S3, carry out regeneration and reclaim braking mode, regeneration is reclaimed and is braked by hub driven motor controller 3 to the lock torque of pm brushless in-wheel motor 2 with respect to the drive torque opposite direction, energy unnecessary in travelling is stored in the battery pack 1 by pm brushless in-wheel motor 2 generatings, for using next time.
Step S4, when end of braking was reclaimed in regeneration, car speed was tending towards 0, judged that when hub driven motor controller 3 speed of a motor vehicle are 0, was not then to continue current regeneration at 0 o'clock to reclaim braking mode, otherwise carried out S5;
Step S5, braking during standstill is by the electromagnetic valve 82 in the hub driven motor controller 3 control closed-center system modules 8, with the oil circuit between conducting accumulator 81 and the hydraulic brake 71, oil pressure flows into hydraulic brake 71, is finally acted on drive wheel/pm brushless in-wheel motor 2 by brake disc 72 and finishes.
Step S6: after Parking stopped, whether the hub driven motor controller needed to detect to exist constantly to re-power action;
Step S7 re-powers if exist, and then carries out self-checking function, self check judge whether by, exist abnormal failure then to carry out alarm mode;
Step S8, do not cut off the power supply or re-powering self check whether satisfy under normal circumstances the driven driving conditions, then keep current state when not satisfying, drive condition and braking condition are opposite: comprise that accelerator 42 signals are not 0, direction switch 43 exists and advance or backing signal, tiller switch 44 invalidating signals, hub driven motor controller 3 self do not have abnormal failure.
Step S9, in the braking during standstill situation, there is the driven driving conditions, then remove braking during standstill, removing braking during standstill is opened or is turn-offed by hub driven motor controller 3 control electromagnetic valves 82, energy in the hydraulic brake 71 is discharged, thereby the brake disc 72 on the drive wheel that is pressed in pm brushless in-wheel motor 2 is unclamped.Enter normal driving mode, hub driven motor controller 3 is according to signal driver pm brushless in-wheel motor 2 operations of handle assembly 4.
The brake system that the utility model provides and control method are used In-wheel motor driving, if use conventional electromagnetic braking then to exist lock torque not enough, can not meet the demands.Simultaneously, use hydraulic brake, provide energy by accumulator, can't help pump motor to carry out separately function, only stored energy in pump motor is carried out when promoting action to accumulator to the elevating ram fuel feeding.Braking maneuver is divided into service brake (regenerated energy reclaims braking) and braking during standstill (stopping brake) fully by the control of hub driven motor controller, and service brake is finished by wheel hub motor fully, and lock torque, car load stopping distance can mate flexibly; Braking during standstill is finished by hydraulic brake, gives separately its fuel feeding without pump, possesses incomparable preceence.
Although describe and illustrate the utility model by certain or some peculiar setups here; its purpose does not also lie in described details; those skilled in the art may carry out various modifications and structure modify in the patent claimed range, still belong to protection domain of the present utility model.
The utility model relates to partly all, and same as the prior art or employing prior art is realized.
Claims (1)
1. the electric stacker brake system comprises battery pack, pm brushless in-wheel motor, drive hub electric machine controller, handle assembly, fuel tank, hydraulic pressure unit, hydraulic braking assembly, closed-center system module;
Described battery pack, drive hub electric machine controller, pm brushless in-wheel motor connect by cable, and the drive hub electric machine controller sends the battery pack electric energy to pm brushless in-wheel motor;
Described handle assembly comprises accelerator, direction switch, tiller switch, switch hoists; It is characterized in that,
Accelerator in the described handle assembly, direction switch, tiller switch use core of a cable to be connected to the hub driven motor controller, provide operation signal to the hub driven motor controller;
Described hydraulic pressure unit comprises oil pump, pump motor, pump motor controller, lift oil tank; Described oil pump and pump motor integrate, and are connected by oil pipe between described oil pump, lift oil tank and the fuel tank, with oil transmission in the fuel tank; Be connected by core of a cable between described pump motor, pump motor controller and the battery pack, the switch that hoists in the described handle assembly connects the pump motor controller by core of a cable, and described pump motor controller is passed to pump motor according to on-off signal with the battery pack electric energy;
Described closed-center system module comprises accumulator, multiway valve piece, electromagnetic valve, described accumulator interface connected with multiple valve piece, be connected by oil pipe between described multiway valve piece and fuel tank, the oil pump, the multiway valve piece is equipped with electromagnetic valve, and described electromagnetic valve is connected by core of a cable with the drive hub electric machine controller and is used for the control hydraulic braking; Described multiway valve piece is connected by oil pipe with the hydraulic braking assembly;
Described hydraulic braking assembly comprises hydraulic brake, brake disc, and hydraulic brake acts on the brake disc, and brake disc is fixed on the drive wheel side of pm brushless in-wheel motor, rotates with pm brushless in-wheel motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250884 CN203254971U (en) | 2013-05-09 | 2013-05-09 | Braking system of electric stacker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320250884 CN203254971U (en) | 2013-05-09 | 2013-05-09 | Braking system of electric stacker |
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| Publication Number | Publication Date |
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| CN203254971U true CN203254971U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320250884 Expired - Fee Related CN203254971U (en) | 2013-05-09 | 2013-05-09 | Braking system of electric stacker |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253145A (en) * | 2013-05-09 | 2013-08-21 | 上海易特电动科技股份有限公司 | Electric fork truck braking system and control method |
| CN104192007A (en) * | 2014-08-13 | 2014-12-10 | 青岛盛嘉信息科技有限公司 | Brake method based on digital control |
| CN104192005A (en) * | 2014-08-13 | 2014-12-10 | 青岛盛嘉信息科技有限公司 | Brake device based on digital control |
-
2013
- 2013-05-09 CN CN 201320250884 patent/CN203254971U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253145A (en) * | 2013-05-09 | 2013-08-21 | 上海易特电动科技股份有限公司 | Electric fork truck braking system and control method |
| CN103253145B (en) * | 2013-05-09 | 2015-07-15 | 上海易特电动科技股份有限公司 | Electric fork truck braking system and control method |
| CN104192007A (en) * | 2014-08-13 | 2014-12-10 | 青岛盛嘉信息科技有限公司 | Brake method based on digital control |
| CN104192005A (en) * | 2014-08-13 | 2014-12-10 | 青岛盛嘉信息科技有限公司 | Brake device based on digital control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20150509 |
|
| EXPY | Termination of patent right or utility model |