CN203488644U - Dual-clutch gearbox used for bulldozer - Google Patents

Dual-clutch gearbox used for bulldozer Download PDF

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Publication number
CN203488644U
CN203488644U CN201320436154.6U CN201320436154U CN203488644U CN 203488644 U CN203488644 U CN 203488644U CN 201320436154 U CN201320436154 U CN 201320436154U CN 203488644 U CN203488644 U CN 203488644U
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China
Prior art keywords
gear
input shaft
clutch
gears
bulldozer
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Application number
CN201320436154.6U
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Chinese (zh)
Inventor
张亮
王萌
李宣秋
侯文军
冯西友
续鲁宁
胡凯
杨满强
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Shantui Chutian Construction Machinery Co Ltd
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Shantui Chutian Construction Machinery Co Ltd
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Abstract

The utility model relates to a gear box used for engineering vehicles and specifically relates to a dual-clutch gearbox used for a bulldozer. The dual-clutch gearbox used for the bulldozer includes a power input shaft, an output shaft and clutches arranged on the power input shaft. The power input shaft is connected with the output shaft in a mutually fitted manner through a plurality of change gear sets. The gear sets are provided with gear-shift selectors. An odd-number gear input shaft and an even-number gear input shaft is arranged between the power input shaft and the output shaft. The clutches include an odd-number gear clutch and an even-number gear clutch. The power input shaft is connected with the odd-number gear input shaft through the odd-number gear clutch. The power input shaft is connected with the even-number gear input shaft through the even-number gear clutch. The odd-number gear input shaft is a solid shaft while the even-number gear input shaft is a hollow shaft sleeving on the odd-number gear input shaft. The dual-clutch gearbox used for the bulldozer provided by the utility model can realize two functions of manual speed changing and automatic speed changing. Power output is improved and operation is simplified. The dual-clutch gearbox used for the bulldozer is safe and reliable.

Description

Two clutch gearboxes for a kind of bulldozer
Technical field
The utility model relates to the gearbox in engineering vehicle, specifically two clutch gearboxes for a kind of bulldozer.
Background technique
The type of belt drive of bulldozer mainly contains mechanical transmission, hydraulic machine transmission, hydrostatic transmissions etc. at present.Mechanical transmission wherein, hydraulic machine transmission is two kinds of type of belt drive that use is comparatively general.It is high that mechanical transmission has transmission efficiency, advantages of simple structure and simple, but its gear shift operation is complicated simultaneously, and motor easily transships and power easily interrupts.Hydraulic machine transmission utilizes liquid kinetic energy transmitting torque, can realize power gear shifting operation, simple to operate, can also effectively relax impact, avoid overload flame-out simultaneously, but because its conversion transmission efficiency by liquid kinetic energy and mechanical energy is affected, and complex structure, cost is high.Advantage for comprehensive these two kinds of kinds of drive, take into account fuel economy and shift quality, conventionally take hydraulic machine type of belt drive to carry out improved method realization, for example there are two power hydraulic machine torque-converters or with the hydraulic machine type of belt drive of locking torque-converters, but in prior art scheme, there is no the ripe scheme of both combinations by it, thereby also could not solve completely for above problem.
Summary of the invention
The purpose of this utility model, is exactly the problem existing for solving prior art, and has designed two clutch gearboxes for a kind of bulldozer, is applied on mechanically operated Bulldozer, has overcome its shift quality and the poor problem of adaptive ability.
The technical solution of the utility model is: two clutch gearboxes for a kind of bulldozer, it mainly includes power input shaft, output shaft, and be arranged on the clutch on power input shaft, between described power input shaft and output shaft by the connection that cooperatively interacts of some gear teeth wheels, gear train is provided with gearshift selector, is also provided with odd number gear input shaft and even number gear input shaft between described power input shaft and output shaft; Described clutch comprises odd number gear clutch and even number gear clutch; Between power input shaft and odd number gear input shaft, by odd number, keep off clutch and be connected, between power input shaft and even number input shaft, by even number, keep off clutch and be connected; Described odd number gear input shaft is solid shaft, and even number gear input shaft is the hollow shaft being socketed on odd number gear input shaft; Described odd number gear input shaft and power input shaft arrange on same straight line, and output shaft and power input shaft be arranged in parallel.
Described odd number gear input shaft is provided with the actuation gear of forward gear 1 gear, forward gear 3 gears and reverse gear shift 2 gears, reverse gear shift 4 gears; Described even number gear input shaft is provided with the actuation gear of forward gear 2 gears, forward gear 4 gears and reverse gear shift 1 gear, reverse gear shift 3 gears.
Between described forward gear 2 gears and forward gear 4 gears, be provided with gearshift selector; Between reverse gear shift 1 gear and reverse gear shift 3 gears, be provided with gearshift selector; Between forward gear 1 gear and forward gear 3 gears, be provided with gearshift selector; Between reverse gear shift 2 gears and reverse gear shift 4 gears, be provided with gearshift selector.
Described gear selector comprises oil hydraulic motor, shift fork, engaging sleeve.
Described pair of clutch gearbox is provided with gearshift electric control device, and described electric control device includes gearshift logic element, solenoid valve and controller.
Described solenoid valve is arranged on gearshift selector and clutch.
Described clutch is the hydraulic coupling with piston, backing plate, friction plate.
The beneficial effects of the utility model can draw by such scheme: because the output shaft of gearbox is provided with double clutch, two clutches work alone.A Clutch Control odd number gear (as: 1 gear, 3 gears), another Clutch Control even number gear (as: 2 gears, 4 gears).By the gearshift logic element of gearbox, according to schedule or driver's gear shift operation, the next order of engagement gear, there is no power interruption, and transmission efficiency is high while therefore shifting gears in advance.
Schedule: the rule that the gearshift between each gear changes with gearshift parameter (speed of a motor vehicle, throttle etc.) constantly.Basic schedule is to propose schedule from learn outstanding driver's shift control data, and the schedule of setting up based on experience is conducive to improve the performance of vehicle under the different operating modes such as climbing and braking.Schedule herein refers to according to the different operating modes of vehicle various modes is set in Shifting, under every kind of pattern, basic schedule is revised, thereby met the desired performance of vehicle and driver intention (as accelerator pedal, brake petal, mode switch) under various operating modes.
Gearshift logic element: shift gears and constantly control according to the requirement of schedule, constantly come temporarily in gearshift, Ke Xiang actuator sends action command, realizes gear switching.
The utility model is applied on mechanically operated Bulldozer, can solve the poor and poor problem of adaptive ability of traditional mechanical gearbox shift quality.And based on double clutch, shift gears in advance and the feature of crash change of speed, and utilize the gearshift judgement of gearshift logic element to carry out gear conversion, can realize two kinds of functions of hand gear and automatic speed changing, improved power output, simplified operation, safe and reliable.
As can be seen here, the utility model compared with prior art has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is two clutch gearbox control program sketches.
Wherein, 1 power input shaft, 2 odd number gear clutches, 3 even number gear clutches, 4 even number gear input shafts, 5 solenoid valves, 6 engaging sleeves, 7 oil hydraulic motors, 8 odd number gear input shafts, 9 output shafts, the engaging gear of 11 forward gear 1 gears, the engaging gear of 12 forward gear 2 gears, the engaging gear of 13 forward gear 3 gears, the engaging gear of 14 forward gear 4 gears, the engaging gear of 15 reverse gear shift 1 gears, the engaging gear of 16 reverse gear shift 2 gears, the engaging gear of 17 reverse gear shift 3 gears, the engaging gear of 18 reverse gear shift 4 gears.
embodiment:
In order to understand better the utility model, below in conjunction with accompanying drawing, explain in detail mode of execution of the present utility model.
Embodiment: as shown in Figure 1, two clutch gearboxes for a kind of bulldozer, it mainly includes power input shaft 1, output shaft 9, and be arranged on the clutch on power input shaft 1, between described power input shaft 1 and output shaft 9 by the connection that cooperatively interacts of some gear teeth wheels, gear train is provided with gearshift selector, and described gear selector comprises oil hydraulic motor 7, shift fork, engaging sleeve 6.Between described power input shaft 1 and output shaft 9, be also provided with odd number gear input shaft 8 and even number gear input shaft 3; Described clutch comprises odd number gear clutch 2 and even number gear clutch 3; Clutch adopts the structure of the multi-sheet wet-type double clutch that bulldozer is conventional, and the working state of two clutches is contrary, the state that two clutches engage simultaneously can not occur.Between power input shaft 1 and odd number gear input shaft 8, by odd number, keep off clutch 2 and be connected, between power input shaft 1 and even number input shaft 4, by even number, keep off clutch 3 and be connected; Described odd number gear input shaft 8 is solid shaft, and even number gear input shaft 4 is for being socketed in the hollow shaft on odd number gear input shaft 8; Described odd number gear input shaft 8 arranges on same straight line with power input shaft 1, and output shaft 9 be arranged in parallel with power input shaft 1.Described odd number gear input shaft 8 is provided with the actuation gear of forward gear 1 gear, forward gear 3 gears and reverse gear shift 2 gears, reverse gear shift 4 gears; Described even number gear input shaft 3 is provided with the actuation gear of forward gear 2 gears, forward gear 4 gears and reverse gear shift 1 gear, reverse gear shift 3 gears.Between described forward gear 2 gears and forward gear 4 gears, be provided with gearshift selector; Between reverse gear shift 1 gear and reverse gear shift 3 gears, be provided with gearshift selector; Between forward gear 1 gear and forward gear 3 gears, be provided with gearshift selector; Between reverse gear shift 2 gears and reverse gear shift 4 gears, be provided with gearshift selector.
Described pair of clutch gearbox is provided with gearshift electric control device, and described electric control device includes gearshift logic element, solenoid valve and controller, as shown in Figure 2.Gearshift logic element is the different choice to self shifter pattern and manual shift pattern according to driver, take the judgement of shifting gears of different control strategies, again gearshift decision instruction is passed to solenoid valve, the double clutch of controlling by solenoid valve and the working state of gear selector, realize gear and select.
Gearshift logic element by gearbox during gearshift operates according to schedule or driver's manual shift, send corresponding gearshift action command and clutch instruction, shift gears action command on the one hand by the action regulator solution pressure motor of solenoid valve, and promotion shift fork is stirred engaging sleeve and is entered in advance corresponding gear.The pressure of two clutches is controlled in clutch instruction by solenoid valve on the other hand, realizes the combination of clutch with separated.
(1) manual shift pattern: manual mode is selected to shift gears to gear by driver.If enter in the past 1 gear when vehicle in front, travelled, driver selects gear to advance after 2 gears, and 2 gear gears start engagement, in " awaiting orders " state, are not just also " activated " (not being combined with clutch).After 2 gear gear engagements, the odd number gear clutch 2 being connected with 1 gear is separated, 3 rapid combinations of even number gear clutch simultaneously that be connected with 2 gears, thus realize the conversion of gear from 1 gear to 2 gears.Simultaneously can realize controls of trip stopping by this mode by gear lifting gear, when changed to 1 gear from 4 gears, because 4 gear gears and 1 keep off gear, be on different clutch shafts, gearbox will directly drop to 1 gear.But while dropping to 2 gear from 4 gears, because 4 gear gears and 2 keep off gears, be on identical clutch shaft, gearbox can first drop to after 3 gears, more directly drops to 1 gear from 3 gears.
(2) self shifter pattern: automatic mode is, by gearshift logic element, the judgement of schedule is carried out to gear selection.Can be according under the different operating modes of vehicle, various modes being set under self shifter pattern.Gearshift logic element is all usingd the speed of a motor vehicle and throttle as controlling parameter under every kind of pattern, and gearshift logic element according to schedule and driver's throttle intervention judgement gearshift constantly, realizes driver intention, as accelerator pedal, brake petal, mode switch.
Two clutch gearboxes can mesh next gear in advance, there is no power interruption while therefore shifting gears.The gearshift mode of gearshift has reduced the needed time of gearshift in advance simultaneously, and the application of the electronic control schemes such as gearshift logic element and solenoid valve has also improved its shift speed, and order gearshift can complete smoothly in 0.1 second.
Above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (7)

1. two clutch gearboxes for a bulldozer, it mainly includes power input shaft, output shaft, and be arranged on the clutch on power input shaft, between described power input shaft and output shaft by the connection that cooperatively interacts of some gear teeth wheels, gear train is provided with gearshift selector, it is characterized in that: between described power input shaft and output shaft, be also provided with odd number gear input shaft and even number gear input shaft; Described clutch comprises odd number gear clutch and even number gear clutch; Between power input shaft and odd number gear input shaft, by odd number, keep off clutch and be connected, between power input shaft and even number input shaft, by even number, keep off clutch and be connected; Described odd number gear input shaft is solid shaft, and even number gear input shaft is the hollow shaft being socketed on odd number gear input shaft; Described odd number gear input shaft and power input shaft arrange on same straight line, and output shaft and power input shaft be arranged in parallel.
2. two clutch gearboxes for bulldozer as claimed in claim 1, is characterized in that: described odd number gear input shaft is provided with the actuation gear of forward gear 1 gear, forward gear 3 gears and reverse gear shift 2 gears, reverse gear shift 4 gears; Described even number gear input shaft is provided with the actuation gear of forward gear 2 gears, forward gear 4 gears and reverse gear shift 1 gear, reverse gear shift 3 gears.
3. two clutch gearboxes for bulldozer as claimed in claim 2, is characterized in that: between described forward gear 2 gears and forward gear 4 gears, be provided with gearshift selector; Between reverse gear shift 1 gear and reverse gear shift 3 gears, be provided with gearshift selector; Between forward gear 1 gear and forward gear 3 gears, be provided with gearshift selector; Between reverse gear shift 2 gears and reverse gear shift 4 gears, be provided with gearshift selector.
4. two clutch gearboxes for bulldozer as claimed in claim 3, is characterized in that: described gear selector comprises oil hydraulic motor, shift fork, engaging sleeve.
5. two clutch gearboxes for bulldozer as claimed in claim 1, is characterized in that: described pair of clutch gearbox is provided with gearshift electric control device, and described electric control device includes gearshift logic element, solenoid valve and controller.
6. two clutch gearboxes for bulldozer as claimed in claim 5, is characterized in that: described solenoid valve is arranged on gearshift selector and clutch.
7. two clutch gearboxes for bulldozer as claimed in claim 6, is characterized in that: described clutch is the hydraulic coupling with piston, backing plate, friction plate.
CN201320436154.6U 2013-07-22 2013-07-22 Dual-clutch gearbox used for bulldozer Active CN203488644U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320436154.6U CN203488644U (en) 2013-07-22 2013-07-22 Dual-clutch gearbox used for bulldozer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320436154.6U CN203488644U (en) 2013-07-22 2013-07-22 Dual-clutch gearbox used for bulldozer

Publications (1)

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CN203488644U true CN203488644U (en) 2014-03-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179773A (en) * 2017-12-28 2018-06-19 山推工程机械股份有限公司 A kind of bull-dozer control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108179773A (en) * 2017-12-28 2018-06-19 山推工程机械股份有限公司 A kind of bull-dozer control method

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