Speed increasing and reducing device combining working conditions of planetary hydraulic transmission and pure mechanical transmission

Speed increasing and reducing device combining working conditions of planetary hydraulic transmission and pure mechanical transmission

  • CN 104,214,287 A
  • Filed: 05/30/2013
  • Published: 12/17/2014
  • Est. Priority Date: 05/30/2013
  • Status: Active Application
First Claim
Patent Images

1. have a planetary driving device for sun gear (1) planet wheel (2) and planet carrier (3) and ring gear (4) three teeth parts, the both ends of the surface biside plate (5) paid by above-mentioned three gears meshing with planet carrier (3) or ring gear (4) concrete mutually forms the pressure oil casing closed.And the oil hydraulic pump that communicates with planet carrier oil circuit (10) at the upper high and low pressure oil pocket (8) forming high low pressure oil pocket (7) and planet wheel (2) and sun gear (1) contact points both sides of planet carrier (3) of nationality planet wheel (2) and ring gear (4) contact points both sides and oil hydraulic motor coenosarc;

  • The transmission device of planet hydraulic transmission pattern and pure mechanical transmission pattern coenosarc.It is characterized by;

    except as except the teeth parts of input shaft in three teeth parts, when as hydraulic transmission operating mode, all the other two teeth parts have circumference and float, and wherein have engaging and disengaging gear (6) between non-output shaft gear element and static element and are in the planet hydraulic transmission of planet oil hydraulic pump that relaxed state formed and planetary hydraulic motor coenosarc;

    Pure mechanical transmission planetary driving device is then converted into when engaging and disengaging gear (6) is in closed state, as planetary oil hydraulic pump and planetary oil hydraulic motor coenosarc hydraulic transmission it there are pump impeller high-voltage oil cavity (7) for eliminating pressure release phenomenon caused by volumetric efficiency factor or (8) meet the feature of meeting pressure surface and flow that pressure surface (by hyperbaric chamber quantity or the facewidth) and flow be greater than motor high-voltage oil cavity (7) or (8), also may be the hydraulic pressure planetary driving device that the high-voltage oil cavity (7) of motor or (8) are all in unloaded state (leading to low pressure oil sump (9)).

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