Speed-changing box planetary carrier
A technology of planetary gear transmission and planetary gear, which is applied to transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems of small number of planetary gears, weak carrying capacity, unreasonable planetary frame structure, etc., and achieve The effect of increasing the number and increasing the strength
Inactive Publication Date: 2014-11-05
CHINA NORTH VEHICLE RES INST
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Problems solved by technology
[0004] In order to solve the problem of unreasonable structure of the planet carrier in the prior art, the number of installed planetary wheels is small, and the load-bearing capacity is not strong, the present invention provides a planetary gear with high load-bearing capacity that can be arranged with more planetary gears under the same size. shelf
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[0010] Such as figure 1 As shown, the planetary row structure of the present invention includes a main frame 1 and a subframe 2, and a corresponding cylinder 8 is installed on one side of the main frame 1 and the subframe 2, and the number of cylinders on the main frame and the subframe Correspondingly, the diameters are also the same. The middle of the cylinder is a hollow structure. After the cylinders on the main frame and the subframe are aligned, they are fixed together by the screw 6, and the planet wheel sleeve 5 and the planet wheel bearing 7 are set on the cylinder. Planetary wheel 3 is installed outside planetary wheel bearing 7, and the both sides of planetary wheel are installed to prevent the planetary wheel retaining ring 4 of friction main and sub-frame. In order to reduce the friction between the planet wheel sleeve 5 and the cylinder 8, an oil groove 9 is formed on the surface of the cylinder. The number of cylinders on the main and sub-frames is the same as ...
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The invention relates to a speed-changing box planetary carrier, in particular to a planetary carrier with planetary gear transmission of an automatic speed-changing box. The speed-changing box planetary carrier comprises a main frame, an auxiliary frame and planetary wheels; the corresponding positions of a main cabinet frame and the auxiliary frame are fixed with cylinders which are of hollow structures; the main frame and the auxiliary frame are fixed by screws penetrating through the cylinders; the diameters of the cylinders of the main frame and the auxiliary frame are consistent; the cylinders are externally provided with planetary wheel shaft sleeves and planetary wheel bearings; and the planetary wheel bearings are externally provided with the planetary wheels. The technical scheme of the invention realizes connection and fixation of the main frame and the auxiliary frame since the main frame and the auxiliary frame are combined by the cylinders, the planetary wheel shaft sleeves and the screws, and has no supporting body between the main frame and the auxiliary frame, thus saving the space for distributing more planetary wheels, being capable of increasing the number of the planetary wheels and improving the strength of a planetary row.
Description
technical field [0001] The invention relates to a mechanical device, in particular to a planet carrier for planetary gear transmission of an automatic gearbox. Background technique [0002] The planetary carrier is an important part in the planetary transmission, and it receives the largest external torque. The structural design of the planetary carrier has a very important impact on the load distribution and carrying capacity, vibration and noise between the planetary wheels. In addition, the vehicle gearbox has certain restrictions on size and weight. [0003] All high-power automatic transmissions adopt a planetary transmission structure, which is a typical transmission with high speed and large torque at the same time. The main and auxiliary frames of the common planet carrier structure are connected by a support body or are an integral structure. Because the support body occupies a certain space, the number of planetary gears arranged is limited, and the carrying capac...
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IPC IPC(8): F16H57/08
CPCF16H57/082
Inventor 石彦辉王明成冯光军李吉元姜宏暄齐春雨李翠芬徐飞
Owner CHINA NORTH VEHICLE RES INST