Fault protection device applicable to cone ring type continuously variable transmission
A continuously variable transmission, fault protection technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as easy damage, and achieve the effect of safe and timely protection action
Active Publication Date: 2013-12-25
浙江富康创业投资有限公司
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Problems solved by technology
[0004] In order to overcome the disadvantage that the existing KRG cone ring mechanism is easy to be damaged in the failure mode, the present invention provides a method that does not affect the correct control of the transmission ring by the control system under normal driving conditions and can be used when the transmission control system is powered off or the vehicle drive train is faulty. A fault protection device suitable for cone-ring continuously variable transmissions that can provide safe and timely protection actions
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[0022] refer to figure 1 and figure 2 , is suitable for the fault protection device of the cone-ring continuously variable transmission, including an electromagnet 8 with a retractable iron core 21 inside, a support sleeve 9, at least three steel balls 10, a push rod screw sleeve 11, a fixed rod 20, a push rod 15 and a spring assembly 16, the push rod 15 is provided with a first inner hole, the fixed rod 20 is set in the first inner hole of the push rod 15, one end of the push rod 15 is connected to the The push rod screw sleeve 11 is connected, and the other end side is provided with a convex portion 22 that can be in contact with the guide rod 4, and the guide rod 4 is abutted against the lower part of the convex portion 22, realizing a gap between the two. Interaction; between the push rod 15 and the fixed rod 20, a spring assembly 16 is provided in the first inner hole, and the spring assembly 16 is arranged in the process that the guide rod 4 pushes the push rod 15 to m...
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The invention discloses a fault protection device applicable to a cone ring type continuously variable transmission. The fault protection device applicable to the cone ring type continuously variable transmission comprises an electromagnet with the interior provided with an extensible iron core, a supporting sleeve, at least three steel balls, a push rod threaded sleeve, a fixing rod, a push rod and a spring assembly; the fixing rod is arranged inside a first internal hole of the push rod; one end of the push rod is connected with the push rod threaded sleeve; the lateral portion of the other end is provided with a projecting portion which can be in contact with a guide rod; the guide rod is abut against the lower portion of the projecting portion to achieve interaction between the guide rod and the projecting portion; the spring assembly is arranged inside the first internal hole between the push rod and the fixing rod; the spring assembly is squeezed and provides downward resilience force to the push rod when the guide rod pushes the push rod to move upward; the supporting sleeve is arranged inside the push rod threaded sleeve; a second internal hole is formed on the supporting sleeve. The fault protection device applicable to the cone ring type continuously variable transmission does not influence correct control of a transmission ring through the control system under general driving operating conditions and provides safe and timely protection during faults.
Description
technical field [0001] The invention relates to a fault protection device suitable for a cone ring type continuously variable transmission. Background technique [0002] The cone-ring continuously variable transmission (hereinafter referred to as KRG) is a continuously variable transmission that uses the input cone and the output cone to clamp the transmission ring and is driven by friction. KRG's design philosophy is to avoid hydraulic pumps in any way and use only simple and durable mechanical parts controlled by electric motors. Compared with the traditional continuously variable transmission (CVT), the design concept of the cone-ring continuously variable transmission makes it have a huge advantage in terms of manufacturing cost and efficiency, and a broad market prospect of the cone-ring continuously variable transmission can be foreseen. [0003] In KRG transmission, by controlling the rotation angle of the ring, the axial contact position of the transmission ring on ...
Claims
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IPC IPC(8): F16H61/12
Inventor 刘波郭威倪勇
Owner 浙江富康创业投资有限公司