External meshing duplex planet row speed reducer and driving device

A double-connected planetary and row reducer technology, which is applied to the transmission device, transmission device parts, gear transmission device, etc., can solve the problems of reduced life of the reducer, increased cost, and insufficient precision of the ring gear.

Pending Publication Date: 2020-10-02
南京清研易为新能源动力有限责任公司
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  • Abstract
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  • Application Information

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Problems solved by technology

The traditional planetary gear reducer needs to process the inner gear, and the machining of the inner gear includes gear shaping, broaching, hobbing milling, forming grinding and other processes, which gradually increase the c...

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  • External meshing duplex planet row speed reducer and driving device
  • External meshing duplex planet row speed reducer and driving device
  • External meshing duplex planet row speed reducer and driving device

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in conjunction with the accompanying drawings in the embodiments of the present specification. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028]It should be noted that the terms "include" and "have" in the embodiments of this specification and the drawings, as well as any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps...

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Abstract

The invention discloses an external meshing duplex planet row speed reducer and a driving device. The speed reducer comprises a shell, a planet frame, a first sun gear, a second sun gear, duplex planet gears, an input shaft and an output shaft, wherein the first sun gear and the second sun gear are coaxially arranged in the center of the planet frame in tandem front and back, the second sun gear is rigidly connected with the input shaft, and the first sun gear is rigidly connected with the shell; the duplex planet gears comprise a first planet gear and a second planet gear, and the first planet gear and the second planet gear are coaxially arranged on a planet gear shaft in the middle of the planet frame in a sleeving mode and a tandem mode front and back; the axis of the duplex planet gears is parallel to the main axis of the speed reducer, the first planet gear is externally meshed with the first sun gear, and the second planet gear is externally meshed with the second sun gear; andthe output shaft is in spline connection with the planet frame.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to an external meshing double planetary reducer and a driving device. Background technique [0002] In the current industrial production, the demand for reducers is getting higher and higher. The requirements for new energy commercial vehicle reducers mainly include large reduction ratio, light weight, strong bearing capacity, high precision, simple manufacture, and moderate price. At present, the reducers that can be used in new energy commercial vehicles mainly include planetary gear reducers and parallel shaft reducers. Planetary gear reducers are widely used in the field of new energy commercial vehicles due to their small size, high transmission efficiency, wide deceleration range, high precision, and long life. The traditional planetary gear reducer needs to process the inner gear, and the machining of the inner gear includes gear shaping, broaching, hobbing and milling, for...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H57/08F16H57/023
CPCF16H1/32F16H57/023F16H57/08F16H57/082F16H2001/327
Inventor 刘树成郝守刚姚征刘鹏翔李进姜泽军
Owner 南京清研易为新能源动力有限责任公司
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