CN201162239Y - Hydraulic driving device for front axle of grader - Google Patents
Hydraulic driving device for front axle of grader Download PDFInfo
- Publication number
- CN201162239Y CN201162239Y CN 200820052530 CN200820052530U CN201162239Y CN 201162239 Y CN201162239 Y CN 201162239Y CN 200820052530 CN200820052530 CN 200820052530 CN 200820052530 U CN200820052530 U CN 200820052530U CN 201162239 Y CN201162239 Y CN 201162239Y
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- motor
- hydraulic motor
- hydraulic
- hydraulic pump
- driving
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- 239000012530 fluid Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a front axle hydraulic driving device of a land scraper, which comprises an engine (1), a left hydraulic motor (5) and a left steering wheel (8) connected with the left hydraulic motor (5) in a driving way, a right hydraulic motor (6) and a right steering wheel (7) connected with the right hydraulic motor (6) in a driving way, and a left hydraulic pump (3) and a right hydraulic pump (4) which are mechanically connected in series or mechanically connected in parallel through a transfer case (9) and connected with the engine (1) in a driving way. The left hydraulic pump (3) is connected with the left hydraulic motor (5) through fluid driving, and the right hydraulic pump (4) is connected with the right hydraulic motor (5) through fluid driving. The utility model relates to a front axle hydraulic driving device of a land scraper which has the advantages that the driving system is simple, the structure is reasonable, the traction force can be increased, and has good drivability, the front axle hydraulic driving device greatly enhances the traction force of the land scraper, and ensures the land scraper to be suitable for different operation conditions.
Description
Technical field
The utility model relates to a kind of land leveller, particularly relates to a kind of propons fluid pressure drive device that improves land leveller tractive force greatly.
Background technology
In the prior art, the land leveller propons is for only possessing the function of turning to and can not drive or for single pump drives double motor, left and right sides motor driving the form of left and right wheels more respectively.
First kind of form has only the back axle wheel drive, the propons wheel does not have tractive force, so the land leveller maximum drawbar pull can only multiply by the attachment coefficient decision by back axle wheel load, and land leveller propons wheel load generally accounts for about 30% of complete machine weight, so land leveller has 30% left and right sides tractive force not obtain performance.
Second kind of form is that single pump drives the double motor structure.When left and right wheels load is not waited (as operation on the slope) thus can cause left and right sides motor rotary speed not to wait very difficult assurance land leveller straight-line travelling.And the difficult differential of realizing of left and right wheels when turning.
The utility model content
Technical problem to be solved in the utility model and provide a kind of transmission system simple and direct, rational in infrastructure, the land leveller propons fluid pressure drive device that can improve tractive force and have better maneuverability.
In order to solve the problems of the technologies described above, the land leveller propons fluid pressure drive device that the utility model provides, the left steering wheel that comprises motor, left hydraulic motor and be in transmission connection with it, right hydraulic motor and the right turn wheel that is in transmission connection with it, left side hydraulic pump and right hydraulic pump machinery are connected or are in transmission connection by transfer case machinery parallel connection and described motor, described left hydraulic pump is connected with described left hydraulic motor hydraulic-driven, and described right hydraulic pump is connected with described right hydraulic motor hydraulic-driven.
Described left hydraulic motor is that low-speed big torque motor directly is connected with the right turn wheel drive with described left steering wheel with right hydraulic motor.
Described left hydraulic motor and right hydraulic motor are high-speed motor, and described left hydraulic motor is connected with the right turn wheel drive with described left steering wheel by reductor with right hydraulic motor.
Adopt the land leveller propons fluid pressure drive device of technique scheme, left hydraulic pump and right hydraulic pressure pump delivery are controlled by controller, are easy to the linearity that guarantees that land leveller travels, also are easy to realize differential during turning.Can not set to zero left and right sides hydraulic pump discharge when not needing practical propons wheel drive.
This patent adopts double pump directly to drive the double motor structure, has following advantage:
1. relatively be easy to realize;
2. owing to adopt electrichydraulic control, realize the Automatic Control of land leveller easily;
3. the problem that when proposition of this patent had solved single pump double motor and applies to high-power all-hydraulic land leveller, the hydraulic pressure components and parts were limited, cost an arm and a leg etc.;
With all-hydraulic rear bridge driven form in conjunction with the time, land leveller complete machine dynamic property, navigability and control performance is very good automatically.
In sum, the present invention is that a kind of transmission system is simple and direct, and is rational in infrastructure, the land leveller propons fluid pressure drive device that can improve tractive force and have better maneuverability.
Description of drawings
Fig. 1 is the system architecture schematic diagram of this patent;
Fig. 2 is the another kind of system architecture schematic diagram of this patent.
The specific embodiment
Referring to Fig. 1, left side hydraulic pump 3 and right hydraulic pump 4 are in transmission connection by shaft coupling 2 and motor 1 by transfer case 9 machineries are in parallel, left side hydraulic pump 3 is connected with left hydraulic motor 5 hydraulic-driven, right hydraulic pump 4 is connected with right hydraulic motor 6 hydraulic-driven, left side hydraulic motor 5 and right hydraulic motor 6 are low-speed big torque motor, directly drive with right turn wheel 7 with left steering wheel 8 respectively to be connected.
The discharge capacity of a left side hydraulic pump 3 and right hydraulic pump 4 is controlled by controller, is easy to the linearity that guarantees that land leveller travels, also is easy to realize differential during turning.Can not set to zero left hydraulic pump 3 and right hydraulic pump 4 discharge capacities when not needing practical propons wheel drive.
Referring to Fig. 2, left hydraulic pump 3 and the 4 machinery series connection of right hydraulic pump are in transmission connection through shaft coupling 2 and motor 1.Left side hydraulic pump 3 is connected with left hydraulic motor 5 hydraulic-driven, and right hydraulic pump 4 is connected with right hydraulic motor 6 hydraulic-driven, and left hydraulic motor 5 and right hydraulic motor 6 are high-speed motor, drives left steering wheel 8 and right turn wheel 7 after reductor 10 slows down respectively.
The discharge capacity of a left side hydraulic pump 3 and right hydraulic pump 4 is controlled by controller, is easy to the linearity that guarantees that land leveller travels, also is easy to realize differential during turning.Can not set to zero left hydraulic pump 3 and right hydraulic pump 4 discharge capacities when not needing practical propons wheel drive.
Claims (3)
1, a kind of land leveller propons fluid pressure drive device, the left steering wheel (8) that comprises motor (1), left hydraulic motor (5) and be in transmission connection with it, right hydraulic motor (6) and the right turn wheel (7) that is in transmission connection with it, it is characterized in that: left hydraulic pump (3) and right hydraulic pump (4) machinery are connected or are in transmission connection by mechanical parallel connection of transfer case (9) and described motor (1), described left hydraulic pump (3) is connected with described left hydraulic motor (5) hydraulic-driven, and described right hydraulic pump (4) is connected with described right hydraulic motor (6) hydraulic-driven.
2, land leveller propons fluid pressure drive device according to claim 1 is characterized in that: described left hydraulic motor (5) is connected for low-speed big torque motor directly drives with right turn wheel (7) with described left steering wheel (8) with right hydraulic motor (6).
3, land leveller propons fluid pressure drive device according to claim 1, it is characterized in that: described left hydraulic motor (5) and right hydraulic motor (6) are high-speed motor, and described left hydraulic motor (5) is taken turns (8) with right hydraulic motor (6) by reductor (10) and described left steering, and driving is connected with right turn wheel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820052530 CN201162239Y (en) | 2008-03-14 | 2008-03-14 | Hydraulic driving device for front axle of grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820052530 CN201162239Y (en) | 2008-03-14 | 2008-03-14 | Hydraulic driving device for front axle of grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162239Y true CN201162239Y (en) | 2008-12-10 |
Family
ID=40183177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820052530 Expired - Fee Related CN201162239Y (en) | 2008-03-14 | 2008-03-14 | Hydraulic driving device for front axle of grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162239Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934728A (en) * | 2010-09-30 | 2011-01-05 | 无锡英特帕普威孚液压有限责任公司 | Static hydraulic transmission case |
-
2008
- 2008-03-14 CN CN 200820052530 patent/CN201162239Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934728A (en) * | 2010-09-30 | 2011-01-05 | 无锡英特帕普威孚液压有限责任公司 | Static hydraulic transmission case |
| CN101934728B (en) * | 2010-09-30 | 2012-11-21 | 无锡英特帕普威孚液压有限责任公司 | Static hydraulic transmission case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOL Free format text: FORMER NAME: CHANG SHA ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Yuelu District City, Hunan province 410205 Changsha Lugu Road No. 677 ZOOMLION Lugu Industrial Park Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: Yuelu District City, Hunan province 410205 Changsha Lugu Road No. 677 ZOOMLION Lugu Industrial Park Patentee before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20140314 |