Synchronous pulley with torque limit
A synchronous pulley, torque limiting technology, applied in the direction of elements with teeth, belts/chains/gears, portable lifting devices, etc., can solve the problem of failure to achieve overload protection, adjustment of overload protection force, and damage to safety pins and connecting parts and other problems to achieve the effect of improving safety and reliability and improving work efficiency
Active Publication Date: 2015-05-06
WUHAN ZHENGTONG TRANSMISSION TECH
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Problems solved by technology
[0004] Although this structure has the effect of overload protection, it will cause damage to the safety pin and the connecting parts. It needs to be replaced with a new safety pin before it can work normally. There is no automatic recovery function for the instant overload and timely recovery. , prone to long-term downtime
In addition, this overload protection structure does not have the function of adjusting the overload protection force according to the needs, and the safety pin will be frequently damaged due to the improper setting of the overload protection force, or the safety pin will not be damaged for a long time, and the overload protection cannot be achieved. Effect
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[0019] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but it does not constitute a limitation of the present invention, it is only an example, and at the same time, the advantages of the present invention will become clearer and easier to understand.
[0020] Referring to the accompanying drawings, it can be seen that a synchronous pulley with torque limitation of the present invention includes a hub 1 and an outer wheel 7, and is characterized in that the hub 1 is provided with an axial baffle 12, and a pressure plate 4 is located on both sides of the friction pair 6 , the friction pair 6 is connected with the wheel hub 1 and the outer wheel 7, the spring 8 is located between the pressure plate 4 and the spring pressure plate 9, outside the spring pressure plate 9 are the adjusting nut 11 and the locking screw 10 for adjusting the torque; the pressure plate 4, the friction pair 6 , the spring pressur...
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A synchronous pulley with torque limit comprises a wheel hub (1) and an outer wheel (7). On the wheel hub (1) is arranged an axial baffle (12); press plates (4) are located at two sides of a friction pair (6); the friction pair (6) is connected with the wheel hub (1) and the outer wheel (7); and a spring (8) is arranged between the press plate (4) and a spring press plate (9). The press plate (4) includes a left press plate (41) and a right press plate (42), the left press plate (41) is located between the spring (8) and the friction pair (6), and the right press plate (42) is located between the axial baffle (12) and the friction pair (6). According to the invention, friction force generated on the friction pair is adjusted to change the required (calibrated) torque to form overload protection between a working machine and a prime mover. As a result, there is no need for shutdown to replace a spare part, which not only improves equipment operation safety and reliability, but also improves working efficiency. Once overload is relieved, normal operation is restored.
Description
technical field [0001] The invention relates to the technical field of mechanical transmission, more specifically it is a synchronous pulley with torque limitation. Background technique [0002] The synchronous belt transmission is a meshing transmission composed of a synchronous belt and a synchronous pulley. Its motion and power are transmitted through the meshing of the belt teeth and the gear. Compared with the ordinary belt transmission, there is no relative slip between the belt and the pulley, and the transmission ratio is constant. , high transmission efficiency, compact structure, good wear resistance and so on. Although calculations or estimates have been made during the design, some unexpected situations often occur in the actual operation process, such as accidental impacts, misoperations, etc., which will increase the actual load sharply, but the existing synchronous pulley will not be overloaded. slipping, which can cause damage to the motor or other important...
Claims
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IPC IPC(8): F16H55/46F16D7/02F16D43/21
Inventor 余晓锁
Owner WUHAN ZHENGTONG TRANSMISSION TECH