Torque measurement apparatus
A torque measurement and torque detection technology, applied in the field of torque measuring instruments, can solve problems such as the inability to accurately grasp the expansion torque, and achieve the effect of accurate torque measurement
Active Publication Date: 2016-11-23
SUGINO MACHINE
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- Application Information
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Problems solved by technology
Therefore, because the torque value is not directly measured, it is impossible to accurately know whether the set torque is actually reached at the end of the tube expansion
Method used
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Embodiment
[0043] figure 1 It is a front view showing the structure of the torque measuring instrument of the present invention. figure 2 It is the state with the clutch cover removed figure 1 top view. image 3 yes figure 1 side view. Figure 4 yes figure 1 The pneumatic circuit diagram of the pneumatic clutch. Figure 5 is a gesture figure 1 An explanatory diagram of the component composition. As shown in the figure, the torque measuring instrument 10 of the present embodiment detects the torque of a roller type tube expander for expanding a tube (tube) inserted into a tube sheet of a heat exchanger or a boiler.
[0044]The drive shaft 11, which is used as the rotating shaft of the pneumatic clutch, is connected to the rotary drive machine of the roller tube expander with a mandrel coupling (accessory for connecting the tube expander and the tube expander) at one end 1. The pneumatic clutch 20 coupled with the other end of the drive shaft 11 is connected to the torque sensor 1...
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To provide a torque measurement apparatus capable of accurately measuring a torque value required for pipe expanding work, without being affected by large torque at the time of rotation starting, even in an electric pipe expansion device. Torque measurement apparatus is equipped with a clutch mechanism which gradually transmits the torque of a rotary shaft rotated by receiving rotations of a rotator of a measured object, to a torque detection shaft of torque detecting means coupled to a driven shaft to which rotations of the rotary shaft are transmitted. The clutch mechanism is a friction clutch which is equipped with a friction portion provided on either one of the rotary shaft or the driven shaft, and a contacted portion disposed oppositely to the other friction portion of the rotary shaft or the driven shaft equipped with the friction portion; and eliminates a clearance between the friction portion and the contacted portion to contact them with each other. A torque value when the rotary shaft is stopped after all rotations of the rotary shaft are transmitted to the torque detection shaft of the torque detecting means, is measured.
Description
technical field [0001] The present invention relates to a torque measuring instrument for detecting the torque of, for example, a roller type tube expander for expanding a tube (tube) inserted into a tube sheet of a heat exchanger or a boiler. Background technique [0002] The current pipe expansion operation is mainly based on the roller expansion method. For example, a tube expander that uses electricity as a driving source to expand a tube (tube) inserted into a tube sheet of a heat exchanger or a boiler, generally consists of a tube expander inserted into a tube of a heat exchanger, etc., to make the tube expander It consists of a motor that rotates the tube expander, a coupling that connects the motor to the tube expander, and a controller that controls the rotational speed and torque of the motor. [0003] Usually, the tube expansion operation based on this tube expander is performed as follows. [0004] (1) Set the rotation speed and torque with the controller, driv...
Claims
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IPC IPC(8): B21C51/00G01L3/14B21D39/10
Inventor 石谷彰浩山内浩行
Owner SUGINO MACHINE