Continuously variable transmission

Continuously variable transmission

  • CN 101,243,271 B
  • Filed: 08/15/2006
  • Issued: 10/29/2014
  • Est. Priority Date: 08/15/2005
  • Status: Active Grant
First Claim
Patent Images

1. one kind has the stepless speed variator (10) of two sun planetary gear set (14), comprising:

  • Be connected to first sun gear (22) of power source, described the first sun gear (22) engages with first group of planetary pinion (24);

    The second sun gear (34) engaging with two groups of epicyclic gears (26), each planetary pinion in described first group of planetary pinion (24) is connected to the corresponding planetary pinion in described two groups of epicyclic gears (26);

    Share bracket (28), described first group of planetary pinion (24) that this bracket connection support are engaged with described the first sun gear (22) and the described two groups of epicyclic gears (26) engaging with described the second sun gear (34), and described shared bracket (28) be also connected to the first forward gear (30) and operation in order to by transmission of power to the first forward gear (30);

    There is the hydrostatic unit (12) of the second forward gear (32) and output gear (36), described the second forward gear (32) is driven by described the first forward gear (30), and described hydrostatic unit provides the moment of reaction to described planetary gear set;

    AndBe configured in slidably the gearshift mechanism (40) on output shaft (42), this gearshift mechanism is optionally engageable;

    described the first forward gear (30) is so that at forward operational vehicle, or described the second sun gear (34) is so that at vehicle described in inverted running, and mechanical neutral, wherein said gearshift mechanism (40) is not all connected with described the first forward gear (30) or described the second sun gear (34).

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