CN203878634U - Gearshift control system of grader and grader - Google Patents
Gearshift control system of grader and grader Download PDFInfo
- Publication number
- CN203878634U CN203878634U CN201420086154.2U CN201420086154U CN203878634U CN 203878634 U CN203878634 U CN 203878634U CN 201420086154 U CN201420086154 U CN 201420086154U CN 203878634 U CN203878634 U CN 203878634U
- Authority
- CN
- China
- Prior art keywords
- gearbox
- control system
- grader
- land leveller
- mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a gearshift control system of a grader and the grader. The gearshift control system comprises a hydraulic pump, a hydraulic motor, a gearbox, a controller, a gear device and a work module selector switch, wherein the gear device is connected with the work module selector switch, and the controller controls the discharge capacity of the hydraulic pump and the hydraulic motor and the gearshift of the gearbox. In the gearshift control system of the grader, the controller determines whether the grader is under a driving mode or a working mode according to the position of the work module selector switch, and the gearbox selects corresponding gear, namely selecting corresponding clutch to engage. The gear of the gearbox remains the same as long as the work mode remains the same, so that engaging and disengaging of the clutch are not necessary. The gearshift frequency of the gearbox during the working process of the grader is reduced, so that the loss of clutch friction plates is minimized and the service lifetime of the clutch friction plates is prolonged. The utility model further discloses a grader employing the gearshift control system.
Description
Technical field
The utility model relates to engineering machinery dynamic Control field, particularly a kind of land leveller shifting control system and land leveller.
Background technology
At present, the power transmission process of Hydrostatic-mechanical Transmission system is generally: motor provides power source for hydraulic pump, and hydraulic pump drive hydraulic motor rotates, and hydraulic motor is connected with the power shaft of gearbox, the output shaft of gearbox drives drive axle action, finally drives driving wheel to rotate; In power transmission process, according to actual condition, need to carry out the switching of gear, take land leveller as example, the working condition more complicated of land leveller, relates to possibly rake soil, bulldozes, shovels the operations such as soil and shovel snow, wants corresponding different travel speeds under various operating modes, therefore need mechanical changeover more continually, this just needs separation and combination continually between the friction plate of clutch, will easily cause friction plate scaling loss like this, reduces the application life of friction plate.
Utility model content
In view of this, the utility model proposes a kind of land leveller shifting control system, easy to wear to solve the clutch friction plate of land leveller, the problem that application life is shorter; In addition, the utility model has also proposed a kind of land leveller that this land leveller shifting control system is installed.
The utility model proposes a kind of land leveller shifting control system, comprise hydraulic pump, hydraulic motor, gearbox, controller, position retaining device and mode of operation selector switch, described position retaining device is connected with controller with mode of operation selector switch, and described controller is for controlling the discharge capacity of hydraulic pump and hydraulic motor and the gearshift of controlling gearbox.
Further, described gearbox is two gear gearboxes.
Further, described mode of operation selector switch is two electric-controlled switch, and two positions of described two electric-controlled switch correspond respectively to two gears of described two gear gearboxes.
On the other hand, the utility model has also proposed a kind of land leveller, and above-mentioned any one land leveller shifting control system is installed.
A kind of land leveller shifting control system that the utility model provides, comprise hydraulic pump, hydraulic motor, gearbox, controller, position retaining device and mode of operation selector switch, position retaining device is connected with controller with mode of operation selector switch, and controller is for controlling the discharge capacity of hydraulic pump and hydraulic motor and the gearshift of controlling gearbox; In this land leveller shifting control system, controller is in driving pattern or work pattern according to the position judgment land leveller of mode of operation selector switch, then gearbox is selected corresponding gear, select corresponding clutch to carry out combination, as long as mode of operation does not switch, the gear of gearbox just can not change, thereby does not just need to carry out combination and the disengaging of clutch, and land leveller speed regulates needs the synergy of position retaining device, hydraulic pump and hydraulic motor to complete.Therefore, reduce the gearshift number of times of land leveller gearbox in the course of the work, reduced the loss of clutch friction plate in gearbox, in the application life of having improved friction plate, also increased the number of actual gear number, met the more demand of multi-state.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the operating principle flow chart of a kind of land leveller shifting control system in the utility model embodiment;
Fig. 2 is the shift control method FB(flow block) of a kind of land leveller shifting control system in the utility model embodiment;
Fig. 3 is the another kind of shift control method FB(flow block) of a kind of land leveller shifting control system in the utility model embodiment.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the utility model can combine mutually.1-3 also describes the utility model in detail in conjunction with the embodiments below with reference to the accompanying drawings.
As shown in Figure 1, a kind of land leveller shifting control system that the utility model specific embodiment provides, this land leveller shifting control system comprises hydraulic pump 1, hydraulic motor 2, gearbox 3, controller 4, position retaining device 5 and mode of operation selector switch, the power transmission line of this land leveller is generally: Engine driven Hydraulic Pump 1 pump oil, hydraulic pump 1 is to hydraulic motor 2 fuel feeding, hydraulic motor 2 is connected with gearbox 3, that is: motor-hydraulic pump 1-hydraulic motor 2-gearbox 3, wherein, position retaining device 5 is connected with controller 4 with mode of operation selector switch, controller 4 is for obtaining the mode of operation information of land leveller and the gear information of position retaining device 5, controller 4 can also be controlled the discharge capacity of hydraulic pump 1 and hydraulic motor 2 and the gearshift of controlling gearbox 3 according to the gear information of mode of operation information and position retaining device 5, preferably, mode of operation selector switch is two electric-controlled switch 6, gearbox 3 is two gear gearboxes 3, two gears of gearbox 3 are corresponding with driving pattern and work pattern respectively, two positions of two electric-controlled switch 6 correspond respectively to two gears of two gear gearboxes 3, two of these two electric-controlled switch 6 positions correspond respectively to driving pattern and work pattern, that is to say that electric-controlled switch can realize the locking of land leveller mode of operation, only have the position of two electric-controlled switch 6 to change, controller 4 just can allow gearbox 3 to carry out gear shift operation.
Land leveller shifting control system in above-mentioned specific embodiment, controller 4 is in driving pattern or work pattern according to the position judgment land leveller of two electric-controlled switch 6, then gearbox 3 is selected corresponding gear, select corresponding clutch to carry out combination, after driving pattern or work pattern under, controller 4 can be according to the gear information of current mode of operation and position retaining device 5, send corresponding instruction and change the discharge capacity of hydraulic pump 1 or the discharge capacity of hydraulic motor 2, it should be noted that, as long as mode of operation does not switch, the gear of gearbox 3 just can not change, thereby just do not need to carry out combination and the disengaging of clutch, land leveller speed regulates needs position retaining device 5, the synergy of hydraulic pump 1 and hydraulic motor 2 completes.Therefore, reduce the gearshift number of times of land leveller gearbox 3 in the course of the work, reduced the loss of clutch friction plate in gearbox 3, in the application life of having improved friction plate, also increased the number of actual gear number, met the more demand of multi-state.
In addition, the utility model specific embodiment also provides a kind of land leveller that above-mentioned land leveller shifting control system is installed, so this land leveller also has above-mentioned beneficial effect, does not repeat them here.
The shift control method of a kind of land leveller shifting control system that the utility model specific embodiment provides, as shown in Figure 2, specifically comprises the following steps:
S1: engine start;
S2: mode of operation judgement, judgement land leveller is in driving pattern or work pattern;
S3: select the corresponding gear of gearbox 3 according to different mode of operations, select corresponding clutch to carry out combination;
S4: work monitoring, in the course of work of land leveller, whether the mode of operation of monitoring land leveller changes;
S5: power shifting, if described mode of operation does not change, do not carry out power shifting; If described mode of operation changes, carry out power shifting.
Particularly, after engine start, operator is according to the mode of operation that is about to carry out, two electric-controlled switch 6 are carried out to position selection, controller 4 is according to the position signalling of two electric-controlled switch 6, judging current land leveller is in driving pattern or work pattern, then according to current mode of operation, send corresponding instruction, and then control corresponding clutch and carry out combination, for example, under driving pattern, select the clutch corresponding with top gear to carry out combination, under work pattern, select the clutch corresponding with bottom gear to carry out combination, now also just completed the selected of gearbox 3 gears, elected reserving after corresponding clutch, land leveller will be faced different operating modes in the course of the work, therefore need different speed and power to meet, controller 4 can be monitored the whole course of work, whether to change in order to monitor the mode of operation of land leveller on the one hand, whether the position of monitoring two electric-controlled switch 6 changes, once the position of two electric-controlled switch 6 being detected changes, will correspondingly carry out power shifting, change the gear of gearbox 3, carry out reselecting and combination of clutch, as long as the invariant position of two electric-controlled switch 6, just can not carry out the switching of gearbox 3 gears, do not carry out disengaging again and the combination of clutch, on the other hand, as shown in Figure 3, land leveller has different rate requests under driving pattern, under work pattern due to different operating modes, the speed of a motor vehicle of land leveller and power output are also had to different requirements, now, operator can be shifted gears according to concrete operating mode, select the different gear of position retaining device 5, controller 4 can monitoring position retaining devices 5 the gear S4 ' that whether changes, controller 4 is according to the gear information of position retaining device 5 S5 ' that shifts gears, the discharge capacity of controlling hydraulic pump 1 and/or hydraulic motor 2 meets the concrete work requirements of land leveller, reduced like this land leveller gearshift number of times of gearbox 3 in the course of the work, thereby reduced the loss of clutch friction plate in gearbox 3, improved the application life of friction plate, also increased the number of actual gear number, meet the more demand of multi-state.
It should be noted that, above-mentioned power shifting refers to the gearshift of gearbox 3, i.e. the combination of clutch is with separated, and remaining gearshift comprises the adjusting of the gearshift of position retaining device 5 and the discharge capacity of hydraulic pump 1 and hydraulic motor 2; In addition, hydraulic pump 1 is volume adjustable hydraulic pump 1, and hydraulic motor 2 is variable hydraulic motor 2; Moreover, two electric-controlled switch 6 also play the lock function to mode of operation, that is, the position of two electric-controlled switch 6 does not change, the combination that operator just can not carry out clutch, with separated, will be avoided causing unnecessary gearbox power shifting due to operator's maloperation like this.
At land leveller, carry out after power shifting, land leveller may also will carry out the switching of driving pattern and work pattern in the course of the work, when operator has changed the position of two electric-controlled switch 6, controller 4 will detect mode of operation and be about to change, thereby solenoidoperated cluthes carry out new selection.In the whole course of work of land leveller, as long as its mode of operation does not change, clutch, just always in bonding state, does not carry out power shifting (comprise and change neutral), until mode of operation changes, just carries out disengaging and the combination that clutch is new.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a land leveller shifting control system, it is characterized in that, comprise hydraulic pump (1), hydraulic motor (2), gearbox (3), controller (4), position retaining device (5) and mode of operation selector switch, described position retaining device (5) is connected with controller (4) with mode of operation selector switch, and described controller (4) is for controlling the discharge capacity of hydraulic pump (1) and hydraulic motor (2) and the gearshift of controlling gearbox (3).
2. land leveller shifting control system according to claim 1, is characterized in that, described gearbox (3) is two gear gearboxes (3).
3. land leveller shifting control system according to claim 2, it is characterized in that, described mode of operation selector switch is two electric-controlled switch (6), and two positions of described two electric-controlled switch (6) correspond respectively to two gears of described two gear gearboxes (3).
4. a land leveller, is characterized in that, the land leveller shifting control system described in claim 1-3 any one is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086154.2U CN203878634U (en) | 2014-02-27 | 2014-02-27 | Gearshift control system of grader and grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086154.2U CN203878634U (en) | 2014-02-27 | 2014-02-27 | Gearshift control system of grader and grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203878634U true CN203878634U (en) | 2014-10-15 |
Family
ID=51679151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086154.2U Withdrawn - After Issue CN203878634U (en) | 2014-02-27 | 2014-02-27 | Gearshift control system of grader and grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203878634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883724A (en) * | 2014-02-27 | 2014-06-25 | 湖南三一路面机械有限公司 | Land leveler, and gear shift control method and gear shift control system for land leveler |
| CN107882090A (en) * | 2017-07-24 | 2018-04-06 | 徐州徐工筑路机械有限公司 | Land leveller control device, method and land leveller |
-
2014
- 2014-02-27 CN CN201420086154.2U patent/CN203878634U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883724A (en) * | 2014-02-27 | 2014-06-25 | 湖南三一路面机械有限公司 | Land leveler, and gear shift control method and gear shift control system for land leveler |
| CN107882090A (en) * | 2017-07-24 | 2018-04-06 | 徐州徐工筑路机械有限公司 | Land leveller control device, method and land leveller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160727 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |