CN204387229U - Engineering machinery hydraulic mechanical variable speed system - Google Patents
Engineering machinery hydraulic mechanical variable speed system Download PDFInfo
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- CN204387229U CN204387229U CN201420777236.1U CN201420777236U CN204387229U CN 204387229 U CN204387229 U CN 204387229U CN 201420777236 U CN201420777236 U CN 201420777236U CN 204387229 U CN204387229 U CN 204387229U
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Abstract
This patent relates to a kind of engineering machinery hydraulic mechanical variable speed system, comprise motor, it is characterized in that: described motor exports driving gear by motor output clutch and motor and is in transmission connection, motor output driving gear exports driven gear with motor and engages, motor exports driven gear and is connected gear and coaxially arranges and the two circumference is fixedly connected with, connect gear to engage with differential gear train gear ring, the outside of differential gear train gear ring is provided with planetary differential train gear ring break, the inner side of differential gear train gear ring is engaged with planet wheel, planet wheel is in transmission connection by planet carrier and train output shaft, planet wheel also engages with sun gear, sun gear is connected with hydraulic motor transmission, the output shaft of oil hydraulic motor is controlled by oil hydraulic motor output brake.Advantage is: this patent increases substantially the transmission efficiency of construction machinery transmission, thus reaches energy-conservation object.
Description
Technical field
The invention belongs to the drive technology field of engineering machinery, particularly relates to a kind of engineering machinery hydraulic mechanical variable speed system.
Background technique
Current engineering machinery speed changer used is hydraudynamic drive power-shift transmission, and wherein fluid torque converter is its chief component.The feature of fluid torque converter to eliminate shock and vibration; it is by liquid transfer power; so have overload protection and the good feature of starting performance; the output shaft rotating speed of torque-converters can be greater than or less than the rotating speed of input shaft; the speed discrepancy of input and output diaxon is different with the size of transmitting torque; torque-converters also has automatic speed changing performance, and when load increases, output speed declines automatically, otherwise automatically rises.Hydraulic torque converter of engineering machine efficiency near declared working condition is higher, peak efficiency is 75% ~ 82%, other power efficiency is very low, such as the rotating speed of torque converter output shaft be zero-speed or close to zero-speed time, the transmission efficiency of torque-converters is almost nil, when the output shaft of torque-converters is in high speed, its efficiency is also very low.For adapting to the transmission needs of the vehicles such as engineering machinery, torque-converters exports the little torque of large torque speedy carding process at low speed, obtains to reduce transmission efficiency, consequently wastes fuel oil.
Summary of the invention
The invention provides a kind of engineering machinery hydraulic mechanical variable speed system for solving in known technology the technical problem that exists, and this system increases substantially the transmission efficiency of construction machinery transmission, thus reaches energy-conservation object.
A kind of engineering machinery hydraulic mechanical variable speed system, comprise motor, motor exports driving gear by motor output clutch and motor and is in transmission connection, motor output driving gear exports driven gear with motor and engages, motor exports driven gear and is connected gear and coaxially arranges and the two circumference is fixedly connected with, connect gear to engage with differential gear train gear ring, the outside of differential gear train gear ring is provided with planetary differential train gear ring break, the inner side of differential gear train gear ring is engaged with planet wheel, planet wheel is in transmission connection by planet carrier and train output shaft, planet wheel also engages with sun gear, sun gear is connected with hydraulic motor transmission, the output shaft of oil hydraulic motor is controlled by oil hydraulic motor output brake.
The advantage that the invention has and good effect are:
Because the invention adopts technique scheme, can by being controlled the jointing state of each break and clutch by computer controlled system, realize hydraulic transmission, Hydrostatic-mechanical Transmission and mechanical transmission, realize the function of torque-converters, but transmission efficiency can improve greatly, when output shaft rotating speed be zero or very low time, its hydraulicefficiency still can reach 60-65%, when when high-speed drive, differential gear train can be changed into mechanical transmission, the power of motor is directly reached output shaft, and its transmission efficiency can reach more than 92%.Effectively can improve the transmission efficiency of engineering machinery, reduce the fuel consume of engineering machinery.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
In figure:
1, motor; 2, motor output clutch; 3, motor exports driving gear; 4, planetary differential train gear ring break; 5, differential gear train gear ring; 6, planet wheel; 7, planet carrier; 8, sun gear; 9, gear is connected; 10, motor exports driven gear; 11, oil hydraulic motor output brake; 12, oil hydraulic motor; 13, train output shaft.
Embodiment
For innovation and creation content, the Characteristic of the invention can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, a kind of engineering machinery hydraulic mechanical variable speed system, comprise motor 1, motor exports driving gear 3 by motor output clutch 2 and motor and is in transmission connection, motor output driving gear exports driven gear 10 with motor and engages, motor exports driven gear and is connected that gear 9 is coaxial to be arranged and the two circumference is fixedly connected with, connect gear to engage with differential gear train gear ring 5, the outside of differential gear train gear ring is provided with planetary differential train gear ring break 4, the inner side of differential gear train gear ring is engaged with planet wheel 6, planet wheel is in transmission connection by planet carrier 7 and train output shaft 13, planet wheel also engages with sun gear 8, sun gear is connected with oil hydraulic motor 12, the output shaft of oil hydraulic motor can be controlled by oil hydraulic motor output brake 11.
The operating principle of the invention is:
The output of motor 1 is connected with motor output clutch 2, after motor output clutch 2 combines, the power of motor exports driving gear 3 Transmission Engine through motor and exports driven gear 10, motor exports driven gear 10 and is connected with planetary differential train gear ring 5, thus power is passed to differential gear train gear ring 5.The output shaft of oil hydraulic motor 12 is connected with oil hydraulic motor output brake 11, the output shaft of oil hydraulic motor is directly connected with the sun gear 8 of planet difference train, and the power of oil hydraulic motor 12 is input to differential gear train through sun gear 8.Output shaft is connected with the planet carrier 7 of planetary differential train, and power exports speed changer to through the planet carrier of planetary differential train.
When vehicle is when starting to walk, train output shaft is low speed, oil hydraulic motor 12 works, and planetary differential train gear ring break 4 combines, and oil hydraulic motor output brake is thrown off, motor output clutch 2 is separated, differential gear train is now Gear Planet Transmission train, and the power of oil hydraulic motor 12 inputs through the sun gear 8 of planetary gear train, exports through planet carrier 7, now oil hydraulic motor exports after planetary gear train slows down, and operating mode is low speed high torque.
When the rotating speed of output shaft reaches certain rotating speed, namely vehicle start reaches to certain speed of a motor vehicle, planetary differential train gear ring break is thrown off, motor output clutch combines, now the power of motor 1 exports driving gear 3, motor output driven gear 10 by clutch 2, motor, and outputting power to differential gear train gear ring 5, is now differential gear train transmission, the power of motor 1 and oil hydraulic motor is input to differential gear train simultaneously, and power is exported by the planet carrier 7 of differential gear train.
When the vehicle runs at a high speed, planetary differential train gear ring releasing of brake, oil hydraulic motor output brake combine, motor output clutch also combines, now differential gear train is the Gear Planet Transmission train of sun gear braking, the power of motor 1 exports driving gear 3, motor driven gear 10 through motor output clutch 2, motor, the power of motor 1 is reached differential gear train gear ring 5, and the planet carrier 7 through planetary gear train exports.The kind of drive is now mechanical transmission, can reach the highest transmission efficiency.
Although be described the preferred embodiment of the invention by reference to the accompanying drawings above; but the invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of the invention; do not departing under the ambit that the invention aim and claim protect, can also make a lot of form, these all belong within the protection domain of the invention.
Claims (1)
1. an engineering machinery hydraulic mechanical variable speed system, comprise motor, it is characterized in that: described motor exports driving gear by motor output clutch and motor and is in transmission connection, motor output driving gear exports driven gear with motor and engages, motor exports driven gear and is connected gear and coaxially arranges and the two circumference is fixedly connected with, connect gear to engage with differential gear train gear ring, the outside of differential gear train gear ring is provided with planetary differential train gear ring break, the inner side of differential gear train gear ring is engaged with planet wheel, planet wheel is in transmission connection by planet carrier and train output shaft, planet wheel also engages with sun gear, sun gear is connected with hydraulic motor transmission, the output shaft of oil hydraulic motor is controlled by oil hydraulic motor output brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777236.1U CN204387229U (en) | 2014-12-10 | 2014-12-10 | Engineering machinery hydraulic mechanical variable speed system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777236.1U CN204387229U (en) | 2014-12-10 | 2014-12-10 | Engineering machinery hydraulic mechanical variable speed system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387229U true CN204387229U (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777236.1U Withdrawn - After Issue CN204387229U (en) | 2014-12-10 | 2014-12-10 | Engineering machinery hydraulic mechanical variable speed system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455244A (en) * | 2014-12-10 | 2015-03-25 | 天津工程机械研究院 | Stepless speed changing system for engineering machinery and hydraulic machinery |
-
2014
- 2014-12-10 CN CN201420777236.1U patent/CN204387229U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455244A (en) * | 2014-12-10 | 2015-03-25 | 天津工程机械研究院 | Stepless speed changing system for engineering machinery and hydraulic machinery |
| CN104455244B (en) * | 2014-12-10 | 2017-08-11 | 天津工程机械研究院 | Engineering machinery hydraulic mechanical stepless speed variator system |
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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: 20150610 Effective date of abandoning: 20170811 |
|
| AV01 | Patent right actively abandoned |