Six-drive and three-reverse planet speed changer
A technology for planetary transmissions and automatic transmissions, which is applied to vehicle gearboxes, transmission components, transmission devices, etc., can solve the problems of high structural design requirements, low mechanical efficiency, and large number of planetary rows, so as to achieve easy structural design and reduce manufacturing costs. Cost, the effect of simplifying the transmission diagram
Inactive Publication Date: 2011-01-26
CHINA NORTH VEHICLE RES INST
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The planetary transmission in this patent combines C3 and B1 to achieve 1st gear, combines C3 and B2 to achieve 2nd gear, combines C3 and C1 to achieve 3rd gear, combines C3 and C2 to achieve 4th gear, combines C1 and C2 to achieve 5th gear, and combines C2 and B2 to achieve 5th gear. Realize 6 gears, combined with C1 and B1 to realize reverse gear; 4 planetary rows and 6 control elements are used in total; its disadvantages are: the number of planetary rows is large, which makes the overall size of the transmission large, fuel consumption, and low mechanical efficiency; at the same time The relative speed of the planetary gear is relatively high, which makes the requirements for structural design and materials high, and the price is relatively expensive
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[0035] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0036] Such as figure 1 As shown, this figure describes the specific scheme of the planetary transmission, which consists of two simple planetary rows and a composite planetary row, with 6 operating elements, this planetary transmission can achieve 6 forward gears and 3 reverse gears.
[0037] The first simple planetary row is composed of a row of ring gear R1, a row of planet carrier PC1, a row of sun gear S1 and a row of planetary gear P1, and a row of planetary gear P1 is simultaneously connected with a row of ring gear R1 and a row of sun gear S1 meshing, a row of planetary carriers PC1 supports a row of planetary gears P1.
[0038] The second simple planetary row consists of the second row of ring gear R2, the second row of planet carrier PC2, the second row of sun gear S2 and the second row of planetary gear P2. The second row of planetary gea...
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The invention belongs to a planet speed changer, in particular relates to a six-drive and three-reverse planet speed changer for an automatic gearbox, which aims to realize six drive gears by utilizing few planet rows, wherein the speed changer consists of two simple planet rows and a complex planet row, and is provided with six manipulating pieces; a first simple planet row consists of one row of gear rings R1, one row of planet carriers PC1, one row of sun wheels S1 and one row of planet wheels P1; a second simple planet row consists of two rows of gear rings R2, two rows of planet carriersPC2, two rows of sun wheels S2 and two rows of planet wheels P2; and the complex planet row consists of a complex row sun wheel S3, a complex row planet carrier PC3, a complex row minor gear ring R3,a complex row major gear ring R4, a complex row long planet wheel P3 and a complex row short planet wheel P4. The six-drive and three-reverse planet speed changer has the advantages that the three planet rows realize six drive gears and three reverse gears, gears are switched by only one manipulating piece, and the rotation speed of the planet wheels of the speed changer is low.
Description
technical field [0001] The invention belongs to a planetary transmission used in an automatic gearbox, in particular to a planetary transmission with six forward gears and three reverse gears. Background technique [0002] The transmission mechanism of the automatic transmission changes the rotational speed and torque output by the hydraulic torque converter, and outputs the changed rotational speed and torque through the output shaft. As we all know, for a manual transmission, too many gears will cause the driver to be tired of frequent gear changes, but the shifting of an automatic transmission does not require manual operation by the driver. Therefore, the more gears of an automatic transmission, the greater the transmission ratio. The easier a series is to be optimized, the better its power performance and fuel economy, so try to use investment costs to achieve more gears. [0003] When the transmission ratio series is determined, the selection of a good transmission sc...
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IPC IPC(8): F16H3/62F16H3/76
CPCF16H2200/2046F16H2200/0052F16H3/663F16H2200/201
Inventor 李洪武刘宝铎周广明潜波王明成张鹤程燕赵欣源尹华兵许晋
Owner CHINA NORTH VEHICLE RES INST