CN202609872U - Series-parallel hybrid forklift - Google Patents
Series-parallel hybrid forklift Download PDFInfo
- Publication number
- CN202609872U CN202609872U CN 201220114685 CN201220114685U CN202609872U CN 202609872 U CN202609872 U CN 202609872U CN 201220114685 CN201220114685 CN 201220114685 CN 201220114685 U CN201220114685 U CN 201220114685U CN 202609872 U CN202609872 U CN 202609872U
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- motor
- parallel hybrid
- hydraulic motor
- hydraulic
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- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a series-parallel hybrid forklift which comprises an engine, a power separating device, a transmission box, a lifting cylinder, a hydraulic motor, a generator, a frequency converter, a battery and a drive axle. The engine, the power separating device, the transmission box and the drive axle are connected in sequence. Power of the engine is transmitted to the drive axle. Potential energy generated by a weight in operation drives the lifting cylinder to generate hydraulic energy, the hydraulic energy drives the hydraulic motor, the hydraulic motor drives the generator to generate electricity, the electricity generated by the generator is stored in the battery, and rotation speed of the hydraulic motor can be adjusted by the frequency converter. Potential energy of a descending gantry of the series-parallel hybrid forklift can be recycled, energy resources are saved, and cost is lowered. A motor and the engine can be used for driving simultaneously when high-torque travelling is needed, and accordingly maneuvering performance of the overall series-parallel hybrid forklift is improved and operating efficiency is improved.
Description
Technical field
The utility model relates to a kind of Forklift, in particular to a kind of series parallel hybrid power Forklift.
Background technology
Oil electric mixed dynamic mainly contains tandem, parallel and three kinds of modes of series parallel type.Tandem is early stage technology, seldom uses in the auto trade, uses more in the construction machinery and equipment; The mainstream technology that parallel technology is present, technology maturation is used more in automobile and construction machinery and equipment; The series-parallel connection technology then is a high-end technology, the series-parallel connection technical sophistication, and cost is higher, but energy-saving effect is best.
Empty van freight container Forklift is that a kind of freight container is periodically carried the implement with stacking, needs Fraquent start braking and lifting container oscilaltion in the course of the work.In the suspender decline process, most of potential energy consumes in vain, does not recycle, and energy dissipation is serious.
Therefore, to above background technology, need the problem of solution following:
1. traditional hybrid connected structure is improved, incorporate the potential energy recovery system;
2. the door frame descending speed is different according to different working conditions speed, requires controlled.
The utility model content
For one of solving the problems of the technologies described above at least, the utility model provides a kind of series parallel hybrid power Forklift.
The series parallel hybrid power Forklift that the utility model provides comprises: driving engine, power separating device, change speed gear box, elevating ram, HM Hydraulic Motor, electrical generator, frequency converter, battery and drive axle; Said driving engine, power separating device, change speed gear box, drive axle connect successively, with transmission of power to the said drive axle of said driving engine; The potential energy that weight produces at work drives said elevating ram and produces the hydraulic pressure ability; Said hydraulic pressure can drive said HM Hydraulic Motor; The said generator for electricity generation of said fluid motor-driven, in the power storage of said electrical generator to the said battery, said frequency converter can be adjusted the rotating speed of said HM Hydraulic Motor.
In this technical scheme, through HM Hydraulic Motor is connected with electrical generator, the potential energy in the time of can descending to door frame carries out recycling, has avoided in the door frame decline process potential energy to consume in vain and causes waste, can reduce the expenditure of energy of Forklift, practices thrift cost; Carry out speed governing through frequency converter, can control the rotating speed of electrical generator, and then the rotating speed of modulated pressure motor, thereby can control the speed that door frame descends, and cancelled traditional flow regulating valve, cal val significantly reduces, and avoids system overheat.
Preferably, also comprise electrical motor, the axle of said electrical motor and the input shaft mechanical connection of said change speed gear box, said battery can drive said electrical motor.In this technical scheme, when the needs high pulling torque is walked, can electrical motor and driving engine unite driving, improved the maneuvering performance of car load, improved operating efficiency.
Preferably, also comprise Hydraulic Pump, the axle of said Hydraulic Pump and the output shaft mechanical connection of said change speed gear box, said change speed gear box drive said Hydraulic Pump rotation, the said elevating ram of said hydraulic pump drive.In this technical scheme, the Hydraulic Pump that is driven by change speed gear box is set drives elevating ram, realize the normal operation of elevating ram, and when electrical motor and electrical motor are worked simultaneously, can save the energy.
Preferably, also comprise change-over valve, said change-over valve selectively is connected said elevating ram with said Hydraulic Pump or said HM Hydraulic Motor.
In this technical scheme, adopt change-over valve to realize the work of elevating ram and the storage of potential energy, control is convenient, can control according to operating mode and needs, and cost is low, is easy to realize.
Preferably, said HM Hydraulic Motor is pump-motor dual purpose motor, and said electrical generator is the shaft type electrical generator; When said driving engine divided power apparatus to drive said HM Hydraulic Motor through said power, said electrical generator did not generate electricity.This moment, said power divided power apparatus can the power of driving engine be separated; Make a part of power drive HM Hydraulic Motor through electrical generator; This moment, HM Hydraulic Motor was used as the Hydraulic Pump use, drove said elevating ram work, and this moment, said electrical generator did not generate electricity; Can when realizing that door frame potential energy reclaims, guarantee the normal operation of elevating ram equally.
Preferably, also comprise change-over valve, said change-over valve is controlled the logical or disconnected of said elevating ram and said HM Hydraulic Motor.
Further, said change-over valve is two four-way electromagnetic reversing valves, and said elevating ram is an elevating ram, and said drive axle is a drive axle.In this technical scheme, two four-way electromagnetic reversing valve controls are flexible, and can realize Long-distance Control and automatic guidance, improve the alerting ability of control accuracy and control; Said elevating ram also can be power elements such as HM Hydraulic Motor.
In sum, the series parallel hybrid power Forklift that the utility model provided adopts the most energy-conservation mixed connection pattern; And the potential energy when door frame descended recycles, and practiced thrift the energy, reduced cost; And when the needs high pulling torque is walked; Can electrical motor and driving engine unite driving, improved the maneuvering performance of car load, improved operating efficiency.
Description of drawings
Fig. 1 is the schematic diagram according to the series parallel hybrid power Forklift of an embodiment of the utility model;
Fig. 2 is the schematic diagram according to the series parallel hybrid power Forklift of another embodiment of the utility model.
The specific embodiment
In order more to be expressly understood above-mentioned purpose, the feature and advantage of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawing and the specific embodiment.
A lot of details have been set forth in the following description so that make much of the utility model; But; The utility model can also adopt other to be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 is the schematic diagram according to the series parallel hybrid power Forklift of an embodiment of the utility model.
Series parallel hybrid power Forklift as shown in Figure 1, that the utility model provides comprises driving engine 1, power separating device 2, change speed gear box 3, elevating ram 6, HM Hydraulic Motor 7, electrical generator 8, frequency converter 9, battery 10 and drive axle 12; Said driving engine 1, power separating device 2, change speed gear box 3, drive axle 12 connect successively, with transmission of power to the said drive axle 12 of said driving engine 1; The potential energy that weight produces at work drives said elevating ram 6 and produces the hydraulic pressure ability; Said hydraulic pressure can drive said HM Hydraulic Motor 7; Said HM Hydraulic Motor 7 drives said electrical generator 8 generatings; In the power storage of said electrical generator 8 to the said battery 10, said frequency converter 9 can be adjusted the rotating speed of said HM Hydraulic Motor 7.
In this technical scheme, adopt the most energy-conservation mixed connection pattern, and when the door frame pressure drop; Elevating ram 6 drives HM Hydraulic Motor 7 and rotates; HM Hydraulic Motor 7 drives electrical generators 8 generatings, and electrical power storage is in battery 10, thereby the potential energy can descend to door frame the time is recycled; Practice thrift the energy, reduced cost.
Preferably, also comprise electrical motor 4, the axle of said electrical motor 4 and the input shaft mechanical connection of said change speed gear box 3, said battery 10 can drive said electrical motor 4.
In this technical scheme, when the needs high pulling torque is walked, can unite driving with driving engine 1 by electrical motor 4, improved the maneuvering performance of car load, improved operating efficiency.
Preferably, also comprise Hydraulic Pump 5, the axle of said Hydraulic Pump 5 and the output shaft mechanical connection of said change speed gear box 3, said change speed gear box 3 drive said Hydraulic Pump 5 rotations, and said Hydraulic Pump 5 drives said elevating ram 6.In this technical scheme, the Hydraulic Pump 5 that is driven by change speed gear box is set drives elevating ram 6, realize the normal operation of elevating ram 6, and when electrical motor 1 and electrical motor 4 are worked simultaneously, can save the energy.
Preferably, also comprise change-over valve 11, said change-over valve 11 selectively is connected said elevating ram 6 with said Hydraulic Pump 5 or said HM Hydraulic Motor 7.In this technical scheme, adopt the up-down of change-over valve 11 control elevating rams 6 and the storage of potential energy, control is convenient, can control according to operating mode and needs, and cost is low, is easy to realize.
Preferably, said change-over valve 11 is two four-way electromagnetic reversing valves.In this technical scheme, two four-way electromagnetic reversing valve controls are flexible, and can realize Long-distance Control and automatic guidance, improve the alerting ability of control accuracy and control.
In the present embodiment, the working process of these two four-way electromagnetic reversing valves 11 is: the electromagnet energising, and then two four-way electromagnetic reversing valve 11 left side position work, at this moment, elevating ram 6 is communicated with HM Hydraulic Motor 7, thereby reclaims the potential energy that door frame descends; When electromagnet stops energising, then two four-way electromagnetic reversing valves, 11 right position work, at this moment; Elevating ram 6 is communicated with Hydraulic Pump 5, realizes the normal operation of elevating ram, in this case; If also work in battery 10 control motors 4, then change speed gear box 3 is driven by electrical motor 4 and/or driving engine 1, thereby Hydraulic Pump 5 is also just driven by electrical motor 4 and/or driving engine 1; Can the door frame potential energy that reclaim be used further to the work of elevating ram 6, but energy savings.
As shown in Figure 1, the mode of operation of the said series parallel hybrid power Forklift of above embodiment is following:
Traditional walking mode: the same with traditional series parallel type vehicle, i.e. driving engine 1 work divides power apparatus 2 and change speed gear box 3 to drive drive axle 12 work, Forklift walking through power;
Door frame potential energy take-back model: door frame descends under the effect of gravitional force, drives elevating ram 6 and descends, thereby drive HM Hydraulic Motor 7 rotations; Drive electrical generator 8 generatings, electric energy is stored in the battery 10, under this pattern; Can come the rotating speed of governor motor 7 through frequency converter 9, thereby control the descending speed of elevating ram 6, both reclaim the potential energy of door frame; Make that again the door frame descending speed is controlled, and system is not generated heat;
Energy-conservation walking mode: 4 work of battery 10 discharge driving motors, treat that car load starts after, driving engine 1 drives walking again, glancing impact electrical generator 8 is worked, the recovery section braking energy also is stored in the battery 10.Under this pattern, during walking, the controllable rotation speed of driving engine 1 is in most economical scope, and energy has when many, electrical generator 8 generatings; Electric weight is sufficient in the battery 10, and when needing short walk, but the walking of electrical motor 4 independent drive; When needing high pulling torque, electrical motor 4 and driving engine 1 associated working.
Fig. 2 is the schematic diagram according to the series parallel hybrid power Forklift of another embodiment of the utility model.
The series parallel hybrid power Forklift that the utility model provided can also be realized in the following manner, and is as shown in Figure 2.Present embodiment and the foregoing description are basic identical, compare difference with the foregoing description and are:
Task driven to elevating ram 6; Do not adopt with change speed gear box 3 bonded assembly working barrels 5 to drive, but adopt the HM Hydraulic Motor 7 of pump-motor dual purpose to drive, this moment, said power divided power apparatus 2 can the power of driving engine 1 be separated; Make a part of power drive HM Hydraulic Motor 7 through electrical generator 8; HM Hydraulic Motor 7 was used as Hydraulic Pump and was used this moment, and when driving said HM Hydraulic Motor 7, said electrical generator 8 does not generate electricity; Promptly this said electrical generator 8 is the shaft type electrical generator, and when said driving engine 1 divided power apparatus 2 to drive said HM Hydraulic Motor 7 through said power, said electrical generator 8 did not generate electricity.
In this technical scheme, also be to adopt the most energy-conservation mixed connection pattern, and when the door frame pressure drop, elevating ram 6 drive HM Hydraulic Motor 7 and rotate; HM Hydraulic Motor 7 drives electrical generators 8 generatings, and electrical power storage is in battery 10, thereby the potential energy can descend to door frame the time is recycled; Practiced thrift the energy, reduced cost, in addition when the needs high pulling torque is walked; Can unite driving with driving engine 1 by electrical motor 4, improve the maneuvering performance of car load, improve operating efficiency.
Further, also comprise change-over valve 11, in the present embodiment, said change-over valve 11 control elevating rams 6 are logical or disconnected with said HM Hydraulic Motor 7, thereby realize the recovery and the normal operation of potential energy.
The remaining part of present embodiment and annexation, and various mode of operation is all identical with a last embodiment, repeats no more.
In the present embodiment, same adopt the most energy-conservation mixed connection pattern, and the potential energy when door frame descended is recycled; Practiced thrift the energy; Reduced cost, and when the needs high pulling torque is walked, also can electrical motor and driving engine unite driving; Improve the maneuvering performance of car load, improved operating efficiency.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a series parallel hybrid power Forklift is characterized in that, comprising:
Driving engine (1), power separating device (2), change speed gear box (3), elevating ram (6), HM Hydraulic Motor (7), electrical generator (8), frequency converter (9), battery (10) and drive axle (12);
Said driving engine (1), power separating device (2), change speed gear box (3), drive axle (12) connect successively, with transmission of power to the said electrical generator and/or the said drive axle (12) of said driving engine (1);
The potential energy that weight produces at work drives said elevating ram (6) and produces the hydraulic pressure ability; Said hydraulic pressure can drive said HM Hydraulic Motor (7); Said HM Hydraulic Motor (7) drives said electrical generator (8) generating; In the power storage of said electrical generator (8) to the said battery (10), said frequency converter (9) can be adjusted the rotating speed of said HM Hydraulic Motor (7).
2. series parallel hybrid power Forklift according to claim 1 is characterized in that,
Also comprise electrical motor (4), the axle of said electrical motor (4) and the input shaft mechanical connection of said change speed gear box (3), said battery (10) can drive said electrical motor (4).
3. series parallel hybrid power Forklift according to claim 1 and 2 is characterized in that,
Also comprise Hydraulic Pump (5), the axle of said Hydraulic Pump (5) drives said Hydraulic Pump (5) rotation with the output shaft mechanical connection of said change speed gear box (3), said change speed gear box (3), and said Hydraulic Pump (5) drives said elevating ram (6).
4. series parallel hybrid power Forklift according to claim 3 is characterized in that,
Also comprise change-over valve (11), said change-over valve (11) selectively is connected said elevating ram (6) with said Hydraulic Pump (5) or said HM Hydraulic Motor (7).
5. series parallel hybrid power Forklift according to claim 4 is characterized in that,
Said change-over valve (11) is two four-way electromagnetic reversing valves.
6. series parallel hybrid power Forklift according to claim 1 and 2 is characterized in that,
Said HM Hydraulic Motor (7) is pump-motor dual purpose motor, and said electrical generator (8) is the shaft type electrical generator;
When said driving engine (1) divided power apparatus (2) to drive said HM Hydraulic Motor (7) through said power, said electrical generator (8) did not generate electricity.
7. series parallel hybrid power Forklift according to claim 5 is characterized in that,
Also comprise change-over valve (11), said change-over valve (11) is controlled said elevating ram (6) and is perhaps broken with the logical of said HM Hydraulic Motor (7).
8. series parallel hybrid power Forklift according to claim 7 is characterized in that,
Said change-over valve (11) is two four-way electromagnetic reversing valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220114685 CN202609872U (en) | 2012-03-23 | 2012-03-23 | Series-parallel hybrid forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220114685 CN202609872U (en) | 2012-03-23 | 2012-03-23 | Series-parallel hybrid forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202609872U true CN202609872U (en) | 2012-12-19 |
Family
ID=47343587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220114685 Expired - Lifetime CN202609872U (en) | 2012-03-23 | 2012-03-23 | Series-parallel hybrid forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202609872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709221A (en) * | 2015-10-29 | 2018-02-16 | 特雷克斯有限公司 | Heavy lifting car |
-
2012
- 2012-03-23 CN CN 201220114685 patent/CN202609872U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107709221A (en) * | 2015-10-29 | 2018-02-16 | 特雷克斯有限公司 | Heavy lifting car |
| US10457534B2 (en) | 2015-10-29 | 2019-10-29 | Konecranes Global Corporation | Heavy-duty lift truck |
| CN107709221B (en) * | 2015-10-29 | 2019-12-13 | 科尼起重机全球公司 | Heavy crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN SANYI PORT EQUIPMENT CO., LTD. Free format text: FORMER OWNER: KM GROUP CO., LTD. Effective date: 20150611 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150611 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: Hunan 31 harbour facilities Co., Ltd Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: KM Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |