The support structure, transmission mechanism and electric tool of the eccentric wheel
A supporting structure and transmission mechanism technology, applied in transmission boxes, transmission devices, manufacturing tools, etc., can solve problems such as broken or loose shafts, affecting the reliability and stability of electric hammers, and broken teeth, so as to improve stability and reliability effect
Active Publication Date: 2021-06-11
POSITEC POWER TOOLS (SUZHOU) CO LTD
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Problems solved by technology
[0003] However, there are some defects in the transmission mechanism of the above-mentioned traditional electric hammer. Specifically, when the piston moves, a reaction force will be applied to the eccentric wheel through the connecting rod mechanism, and the eccentric wheel will unload the reaction force to the shaft on which the eccentric wheel is installed. (or pin), it is easy to cause the shaft (or pin) to break or loosen, and if the eccentric wheel unloads the reaction force to the transmission gear connected to the eccentric wheel, it will cause the gear to pick and chip. This undoubtedly affects the reliability and stability of the eccentric wheel, which will affect the transmission mechanism of the electric hammer and the reliability and stability of the entire electric hammer
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[0032] According to the second embodiment of the present invention, the support member 5 is an eccentric wheel sleeve surrounding the outer peripheral surface of the eccentric wheel 1 , and the eccentric wheel 1 is attached to the eccentric wheel sleeve in a rotatable manner. Specifically, both sides of the eccentric wheel sleeve can be fixedly connected to the machine body 4 through connecting rods 17 . One side of the eccentric wheel sleeve can also be formed with a protruding body 9 abutting against and connected to the body 4 , and the protruding body 9 is located on the outer side of the circumferential surface of the eccentric wheel 1 away from the driving member 3 .
[0033] According to a specific embodiment of the present invention, the body 4 is provided with a pair of mounting plates 10 spaced apart from each other, and the support member 5 is embedded between the pair of mounting plates 10. Specifically, the body 4 is provided with two mounting plates in the upper a...
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The invention provides a support structure, a transmission mechanism and an electric tool for an eccentric wheel, the eccentric wheel is rotatably installed on the machine body through the eccentric wheel mounting shaft, and one end of the eccentric wheel is located on one side of the axis of the eccentric wheel A drive member is hinged, wherein the support structure of the eccentric wheel includes a support fixedly connected to the body, the support member is at least in contact with the circumferential surface of the eccentric wheel away from the drive member, and the support The part is in contact with the semi-circumferential surface of the eccentric wheel close to the driving part. The supporting structure of the eccentric wheel can improve the stability and reliability of the eccentric wheel.
Description
technical field [0001] The invention relates to a support structure, in particular to a support structure of an eccentric wheel, a transmission mechanism including the support structure of the eccentric wheel and an electric tool including the transmission mechanism. Background technique [0002] The transmission mechanism of some electric tools will be equipped with an eccentric wheel as an intermediate piece of power transmission. Taking a traditional electric hammer transmission mechanism as an example, it includes an eccentric wheel connected with the power of the motor. The eccentric wheel is rotatably installed on the transmission mechanism The power is connected to the connecting rod mechanism in the box, and the connecting rod mechanism is connected to the piston of the cylinder so that the power of the motor can be transmitted to the piston of the cylinder through the eccentric wheel and the connecting rod mechanism, so that the piston moves and compresses the gas to...
Claims
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IPC IPC(8): F16H57/02F16H21/18B25F5/00
CPCB25F5/00F16H21/18F16H57/02
Inventor 孙井龙
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD