CN111536202A - Transmission device for loader, control method of transmission device and loader - Google Patents
Transmission device for loader, control method of transmission device and loader Download PDFInfo
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- CN111536202A CN111536202A CN202010354622.XA CN202010354622A CN111536202A CN 111536202 A CN111536202 A CN 111536202A CN 202010354622 A CN202010354622 A CN 202010354622A CN 111536202 A CN111536202 A CN 111536202A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 54
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002706 hydrostatic effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/0203—Gearboxes; Mounting gearing therein the gearbox is associated or combined with a crank case of an engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
- F16H2057/0206—Gearboxes for particular applications for vehicle transmissions for commercial vehicles, e.g. buses or trucks
Abstract
The invention relates to the technical field of loaders, in particular to a transmission device for a loader, a control method thereof and the loader, wherein the transmission device for the loader comprises a first input shaft, a second input shaft and an output shaft, the first input shaft is driven by an auxiliary power source, the second input shaft is driven by a main power source, and the first input shaft and the second input shaft are respectively connected with the output shaft through a transmission gear set; a first clutch is arranged between the first input shaft and a gear arranged on the first input shaft, and a second clutch is arranged between the second input shaft and a gear arranged on the second input shaft. The transmission device for the loader provided by the invention realizes double-power coupling; in addition, the traditional hydraulic torque converter is cancelled, so that the link of energy conversion in the power transmission process is reduced, and the transmission efficiency is greatly improved; and the whole adopts fixed shaft type arrangement, and the structure is simple and compact, and the arrangement flexibility is high.
Description
Technical Field
The invention relates to the technical field of loaders, in particular to a transmission device for a loader, a control method of the transmission device and the loader.
Background
As shown in fig. 1, a conventional transmission device for a loader is composed of an engine 1 ', a twin-turbine torque converter 2 ', a clutch 3 ', and a transmission gear set, and power is transmitted to an output shaft 6 ' through the engine 1 ', the twin-turbine torque converter 2 ', the clutch 3 ', a drive gear 4 ', and a driven gear 5 ', as shown by arrows in fig. 1.
The defects of the prior art are as follows: 1) in the process of power transmission, two times of energy conversion are carried out, firstly, the mechanical energy of a pump wheel of the hydraulic torque converter is converted into the internal energy of liquid, then, the internal energy of the liquid is converted into the mechanical energy of a turbine of the hydraulic torque converter, and the transmission efficiency is lower; 2) the hydraulic transmission braking capacity is poor, and the use frequency of mechanical brakes on wheels of the hydraulic transmission loader is high, so that the brakes are worn quickly; 3) the spatial positions of the input shaft and the output shaft have strict relation; 4) and no braking energy is recycled.
Disclosure of Invention
The invention aims to provide a transmission device for a loader, a control method thereof and the loader, and aims to solve the technical problems that the transmission efficiency is low and the arrangement of an input shaft and an output shaft is not flexible in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a transmission device for a loader comprises a first input shaft, a second input shaft and an output shaft, wherein the first input shaft is driven by an auxiliary power source, the second input shaft is driven by a main power source, and the first input shaft and the second input shaft are respectively connected with the output shaft through transmission gear sets; a first clutch is arranged between the first input shaft and a gear arranged on the first input shaft, and a second clutch is arranged between the second input shaft and a gear arranged on the second input shaft.
The power of the auxiliary power source is transmitted to the output shaft after passing through the first input shaft and the transmission gear set between the first input shaft and the output shaft, the power of the main power source is transmitted to the output shaft after passing through the second input shaft and the transmission gear set between the second input shaft and the output shaft, and the two paths of power are arranged in parallel, so that double-power coupling is realized. In addition, the traditional hydraulic torque converter is cancelled, so that the link of energy conversion in the power transmission process is reduced, and the transmission efficiency is greatly improved; and the whole adopts fixed shaft type arrangement, and the structure is simple and compact, and the arrangement flexibility is high.
As a preferable technical solution of the transmission device for the loader, the auxiliary power source is an electric motor, and the main power source is a hydraulic motor. And pure electric drive, hydrostatic drive or electro-hydraulic coupling drive can be realized.
As a preferable technical solution of the transmission device for a loader, the auxiliary power source is an electric motor, and the main power source is an internal combustion engine. And pure electric drive, oil drive or oil-electricity coupling drive can be realized.
As a preferable technical solution of the transmission for the loader, the auxiliary power source is a hydraulic motor, and the main power source is an internal combustion engine. The oil drive, the hydrostatic drive or the oil-liquid coupling drive can be realized.
As a preferable embodiment of the transmission device for a loader, the first clutch is a wet clutch.
As a preferable embodiment of the transmission device for a loader, the second clutch is a wet clutch.
The wet clutch is a clutch cooled by oil, the cooling oil protects the friction plate, and the power transmission is smooth and soft.
As a preferable aspect of the transmission device for a loader, a first coupling is provided between the output shaft of the auxiliary power source and the first input shaft.
As a preferable embodiment of the transmission device for a loader, a second coupling is provided between the output shaft of the main power source and the second input shaft.
The shaft coupling is used for coupling two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together so as to transmit torque, and has the effects of buffering, damping and improving the dynamic performance of a shaft system in high-speed heavy-load power transmission.
A control method of a transmission for a loader as described in any one of the above, when the loader is traveling empty, one of the first clutch and the second clutch is closed, and the other is open; when the loader works in a light load mode, the first clutch is disconnected, and the second clutch is closed; when the loader is in heavy load or full load operation, the first clutch and the second clutch are both closed; when the loader is braked, the first clutch is closed, and the second clutch is opened.
The loader comprises a control method of the transmission device for the loader.
The invention has the beneficial effects that:
according to the transmission device for the loader, the power of the auxiliary power source is transmitted to the output shaft after passing through the first input shaft and the transmission gear set between the first input shaft and the output shaft, the power of the main power source is transmitted to the output shaft after passing through the second input shaft and the transmission gear set between the second input shaft and the output shaft, and the two paths of power are arranged in parallel, so that double-power coupling is realized. In addition, the traditional hydraulic torque converter is cancelled, so that the link of energy conversion in the power transmission process is reduced, and the transmission efficiency is greatly improved; and the whole adopts fixed shaft type arrangement, and the structure is simple and compact, and the arrangement flexibility is high.
Drawings
FIG. 1 is a schematic illustration of a transmission for a loader provided by the prior art;
FIG. 2 is a schematic diagram of a transmission for a loader according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a transmission for a loader according to a second embodiment of the present invention;
FIG. 4 is a schematic diagram of a transmission for a loader according to a third embodiment of the present invention;
fig. 5 is a schematic diagram of the control circuit for the first clutch and the second clutch according to the present invention.
In the figure:
1' -an engine; 2' -a twin-turbine torque converter; 3' -a clutch; 4' -a drive gear; 5' -a driven gear; 6' -output shaft;
11-an auxiliary power source; 12-a first coupling; 13-a first clutch; 14-a first input shaft; 15-intermediate shaft; 21-the primary power source; 22-a second coupling; 23-a second clutch; 24-a second input shaft; 30-an output shaft;
100-oil tank; 200-a coarse filter; 300-a hydraulic pump; 400-a one-way valve; 501-a first fine filter; 502-a first solenoid valve; 601-a second fine filter; 602-a second solenoid valve; 700-safety overflow valve.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
As shown in fig. 2, the present embodiment provides a transmission device for a loader, which includes a first input shaft 14, a second input shaft 24 and an output shaft 30, wherein the first input shaft 14 is driven by an auxiliary power source 11, the second input shaft 24 is driven by a main power source 21, the first input shaft 14 and the second input shaft 24 are respectively connected with the output shaft 30 through a transmission gear set, and the output shaft 30 is connected with a front and rear drive axle of the loader; a first clutch 13 is provided between the first input shaft 14 and a gear provided on the first input shaft 14, and a second clutch 23 is provided between the second input shaft 24 and a gear provided on the second input shaft 24.
For example, referring to fig. 2, the first input shaft 14 is connected with the output shaft 30 through two pairs of transmission gear sets, an intermediate shaft 15 is arranged between the first input shaft 14 and the output shaft 30, a first gear Z1 is arranged on the first input shaft 14, a second gear Z2 and a third gear Z3 are arranged on the intermediate shaft 15, a fourth gear Z4 is arranged on the output shaft 30, the first gear Z1 is meshed with the second gear Z2, and the third gear Z3 is meshed with the fourth gear Z4. The second input shaft 24 is connected with the output shaft 30 through a pair of transmission gear sets, a fifth gear Z5 is arranged on the second input shaft 24, a sixth gear Z6 is arranged on the output shaft 30, and the fifth gear Z5 is meshed with the sixth gear Z6.
A first gear ratio between the first input shaft 14 and the output shaft 30 is the product of the ratio of the number of teeth of the second gear Z2 to the number of teeth of the first gear Z1 multiplied by the ratio of the number of teeth of the fourth gear Z4 to the number of teeth of the third gear Z3; a second gear ratio between the second input shaft 24 and the output shaft 30 is the ratio of the number of teeth of the sixth gear Z6 to the number of teeth of the fifth gear Z5. The first and second gear ratios may be the same or different, preferably different, increasing the range of applicability. It is understood that the number of pairs of transmission gear sets between the first input shaft 14 and the output shaft 30 and the number of pairs of transmission gear sets between the second input shaft 24 and the output shaft 30 are not limited thereto, and may be determined according to the actual transmission ratio required between the first input shaft 14 and the output shaft 30 and between the second input shaft 24 and the output shaft 30 and the arrangement positions of the first input shaft 14, the second input shaft 24 and the output shaft 30, without being limited thereto.
By providing the first clutch 13 and the second clutch 23, the loader can be started smoothly. Preferably, the first clutch 13 and the second clutch 23 are wet clutches, which are oil-cooled clutches, and the cooling oil protects the friction plates to enable smooth and soft power transmission, and has the advantages of long service life and generally no failure.
The output shaft 30 of the auxiliary power source 11 is connected to the first input shaft 14 via the first coupling 12, and the output shaft 30 of the main power source 21 is connected to the second input shaft 24 via the second coupling 22. The shaft coupling is used for coupling two shafts (a driving shaft and a driven shaft) in different mechanisms to rotate together so as to transmit torque, and has the effects of buffering, damping and improving the dynamic performance of a shaft system in high-speed heavy-load power transmission.
The power of the auxiliary power source 11 is transmitted to the output shaft 30 through the first input shaft 14 and the transmission gear set between the first input shaft 14 and the output shaft 30, the power of the main power source 21 is transmitted to the output shaft 30 through the second input shaft 24 and the transmission gear set between the second input shaft 24 and the output shaft 30, and the two paths of power are arranged in parallel, so that double-power coupling is realized.
In this embodiment, the auxiliary power source 11 is a motor, and the main power source 21 is a hydraulic motor, which can implement pure electric drive, hydrostatic drive, or electro-hydraulic coupling drive. In addition, the motor is a product without faults or with few faults, the workload of use and maintenance is small, and the maintenance cost can be reduced; the power output of the hydraulic motor is stable, almost no noise exists, and the output efficiency can reach 95%.
In summary, in the transmission for a loader provided in this embodiment, the power of the auxiliary power source 11 is transmitted to the output shaft 30 through the first input shaft 14 and the transmission gear set between the first input shaft 14 and the output shaft 30, the power of the main power source 21 is transmitted to the output shaft 30 through the second input shaft 24 and the transmission gear set between the second input shaft 24 and the output shaft 30, and the two paths of powers are arranged in parallel, so that the dual-power coupling is realized. In addition, the traditional hydraulic torque converter is cancelled, so that the link of energy conversion in the power transmission process is reduced, and the transmission efficiency is greatly improved; and the whole adopts fixed shaft type arrangement, and the structure is simple and compact, and the arrangement flexibility is high.
Example two
As shown in fig. 3, the present embodiment provides a transmission for a loader, which is substantially the same as the transmission for a loader provided in the first embodiment, except that the auxiliary power source 11 is an electric motor and the main power source is an internal combustion engine. And pure electric drive, oil drive or oil-electricity coupling drive can be realized.
EXAMPLE III
As shown in fig. 4, the present embodiment provides a transmission for a loader which is basically the same as the transmission for a loader provided in the first embodiment, except that the auxiliary power source 11 is a hydraulic motor, and the main power source 21 is an internal combustion engine. The oil drive, the hydrostatic drive or the oil-liquid coupling drive can be realized.
Example four
The present embodiment provides a control method of a transmission for a loader, when the loader is empty, one of a first clutch 13 and a second clutch 23 is closed, and the other is opened, and either one of a main power source 21 or an auxiliary power source 11 is used to provide driving force; when the loader works in a light load mode, the first clutch 13 is opened, the second clutch 23 is closed, and the main power source 21 provides driving force; when the loader is in heavy load or full load operation, the first clutch 13 and the second clutch 23 are both closed, and the main power source 21 and the auxiliary power source 11 jointly provide driving force; when the loader is braked in a running mode, the first clutch 13 is closed, the second clutch 23 is opened, the auxiliary power source 11 rotates reversely, and the power generation or energy storage function is achieved. The control method can control the first clutch and the second clutch according to different operating conditions of the loader so as to improve the operating efficiency of the loader.
Fig. 5 shows control oil paths where the first clutch 13 and the second clutch 23 are located, referring to fig. 5, the control oil path includes an oil tank 100, a main oil path communicated with the oil tank 100, and a first pressure oil path, a second pressure oil path and a lubrication oil path which are communicated with the main oil path and arranged in parallel, the main oil path is provided with a hydraulic pump 300, the first clutch 13 is arranged in the first pressure oil path, the second clutch 23 is arranged in the second pressure oil path, the first pressure oil path is provided with a first electromagnetic valve 502 before the first clutch 13, the second pressure oil path is provided with a second electromagnetic valve 602 before the second clutch 23, the lubrication oil path is provided with a safety overflow valve 700, and the lubrication oil path is communicated with lubrication oil chambers of the first electromagnetic valve 502, the first clutch 13, the second electromagnetic valve 602 and the second clutch 23.
The first electromagnetic valve is electrified, a valve core of the first electromagnetic valve moves upwards, the first electromagnetic valve conducts a first pressure oil way, and oil in the oil tank 100 enters the first clutch 13 after passing through the main oil way and the first pressure oil way, so that the first clutch 13 is closed; the first solenoid valve 502 is de-energized, the spool of the first solenoid valve 502 moves downward, the first solenoid valve 502 shuts off the first pressure oil path, and the first clutch 13 is disengaged. Similarly, the second electromagnetic valve 602 is energized, the spool of the second electromagnetic valve 602 moves upward, the second electromagnetic valve 602 conducts the second pressure oil path, and the oil in the oil tank 100 enters the second clutch 23 through the main oil path and the second pressure oil path, so that the second clutch 23 is closed; the second solenoid valve 602 is de-energized, the spool of the second solenoid valve 602 moves downward, the second solenoid valve 602 shuts off the second pressure oil path, and the second clutch 23 is disengaged. Fig. 5 shows a diagram in which both the first solenoid valve 502 and the second solenoid valve 602 are in the deenergized state.
When the clutch is closed, a part of oil enters a pressure oil chamber of the clutch, and the other part of oil flows into a lubricating oil chamber of the clutch through an overflow port of the safety overflow valve 700 and then returns to the oil tank 100 through the lubricating oil chamber of the clutch. When the clutch is disengaged, the pressure oil path is cut off under the action of the electromagnetic valve, and all the oil flows from the overflow port of the safety overflow valve 700 to the lubricating oil chamber of the clutch and returns to the oil tank 100 through the lubricating oil port.
Preferably, a coarse filter 200 is disposed on the main oil path before the hydraulic pump 300, a first fine filter 501 is disposed on the first pressure oil path before the first solenoid valve 502, and a second fine filter 601 is disposed on the second pressure oil path before the second solenoid valve 602 for filtering the oil. The main oil path is further provided with a check valve 400 after the hydraulic pump 300, and the check valve 400 is configured to be communicated in a one-way manner along the direction from the hydraulic pump to the first pressure oil path, the second pressure oil path and the lubricating oil path, so as to prevent oil in the first pressure oil path, the second pressure oil path and the lubricating oil path from flowing back into the hydraulic pump 300.
EXAMPLE five
The present embodiment provides a loader that can improve the work efficiency of the loader by using the control method of the transmission device for a loader according to the fourth embodiment.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A transmission device for a loader is characterized by comprising a first input shaft (14), a second input shaft (24) and an output shaft (30), wherein the first input shaft (14) is driven by an auxiliary power source (11), the second input shaft (24) is driven by a main power source (21), and the first input shaft (14) and the second input shaft (24) are respectively connected with the output shaft (30) through a transmission gear set; a first clutch (13) is arranged between the first input shaft (14) and a gear arranged on the first input shaft (14), and a second clutch (23) is arranged between the second input shaft (24) and a gear arranged on the second input shaft (24).
2. A transmission for a loader as claimed in claim 1 wherein the auxiliary power source (11) is an electric motor and the main power source (12) is a hydraulic motor.
3. A transmission for a loader as claimed in claim 1 wherein the auxiliary power source (11) is an electric motor and the main power source (12) is an internal combustion engine.
4. A transmission for a loader as claimed in claim 1 in which the auxiliary power source (11) is a hydraulic motor and the main power source (12) is an internal combustion engine.
5. Transmission for a loader as claimed in claim 1 wherein the first clutch (13) is a wet clutch.
6. Transmission for a loader as claimed in claim 1 wherein the second clutch (23) is a wet clutch.
7. A transmission for a loader as claimed in claim 1 wherein a first coupling (12) is provided between the output shaft (30) of the auxiliary power source (11) and the first input shaft (14).
8. A transmission for a loader as claimed in claim 1 wherein a second coupling (22) is provided between the output shaft (30) of the primary power source (21) and the second input shaft (24).
9. A control method of a transmission for a loader as claimed in any one of claims 1 to 8 wherein when the loader is traveling empty, one of the first clutch (13) and the second clutch (23) is closed and the other is open; when the loader works in a light load mode, the first clutch (13) is opened, and the second clutch (23) is closed; when the loader is in heavy load or full load operation, the first clutch (13) and the second clutch (23) are closed; when the loader is braked, the first clutch (13) is closed, and the second clutch (23) is opened.
10. A loader characterized by adopting the control method of a transmission for a loader according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010354622.XA CN111536202A (en) | 2020-04-29 | 2020-04-29 | Transmission device for loader, control method of transmission device and loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010354622.XA CN111536202A (en) | 2020-04-29 | 2020-04-29 | Transmission device for loader, control method of transmission device and loader |
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| CN111536202A true CN111536202A (en) | 2020-08-14 |
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| CN202010354622.XA Pending CN111536202A (en) | 2020-04-29 | 2020-04-29 | Transmission device for loader, control method of transmission device and loader |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809175A (en) * | 2022-04-19 | 2022-07-29 | 无锡明恒混合动力技术有限公司 | Pure electric drive system for skid steer loader |
| CN115140105A (en) * | 2022-06-17 | 2022-10-04 | 中车太原机车车辆有限公司 | Power system of double-power operation vehicle and rail vehicle |
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| CN101137524A (en) * | 2005-03-10 | 2008-03-05 | Tcm株式会社 | Hydraulic power transmission device and work vehicle |
| US20090036247A1 (en) * | 2007-08-01 | 2009-02-05 | David Earl Earhart | Multi-speed transmission |
| CN102537300A (en) * | 2011-11-14 | 2012-07-04 | 罗庆繁 | Simple fixed-shaft type transmission assembly for loader |
| CN104385896A (en) * | 2014-09-29 | 2015-03-04 | 太原理工大学 | Loader with bimotored power system |
| CN105599584A (en) * | 2016-03-15 | 2016-05-25 | 山东理工大学 | Multi-motor-light hybrid two-axle driving coupling plug-in hybrid power system |
| CN107152510A (en) * | 2017-05-02 | 2017-09-12 | 北京理工大学 | Loader hydraulic mechanical stepless transmission device |
| CN109130819A (en) * | 2017-06-28 | 2019-01-04 | 天厦精控（厦门）科技有限公司 | A kind of double-motor hybrid coupler and its working method |
| CN210390751U (en) * | 2019-05-14 | 2020-04-24 | 广州汽车集团股份有限公司 | Hybrid power speed change mechanism, hybrid power system and vehicle with hybrid power system |
| CN110375053A (en) * | 2019-08-19 | 2019-10-25 | 三一汽车制造有限公司 | Land leveller |
| CN110758083A (en) * | 2019-09-23 | 2020-02-07 | 东风商用车有限公司 | New energy vehicle power system and control method thereof |
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| CN114809175A (en) * | 2022-04-19 | 2022-07-29 | 无锡明恒混合动力技术有限公司 | Pure electric drive system for skid steer loader |
| CN115140105A (en) * | 2022-06-17 | 2022-10-04 | 中车太原机车车辆有限公司 | Power system of double-power operation vehicle and rail vehicle |
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Application publication date: 20200814 |