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Hydraulic type torsion connection simulator

A simulator and hydraulic technology, which is applied in the field of hydraulic torque connection simulators, can solve the problems of increasing calibration workload and labor intensity, increasing costs, etc., and achieve the effect of low cost, cost reduction and exquisite design

Pending Publication Date: 2018-03-27
哈尔滨市计量检定测试院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current simulator uses disc springs as the force buffer unit, so each calibration point must be equipped with a high torque rate simulator and a low torque rate simulator. Calibration requires a large number of simulators, which will inevitably greatly increase the cost, and also increase the labor and labor intensity of the calibration work

Method used

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specific Embodiment approach 1

[0012] Specific implementation mode one: as Figure 1~Figure 2 As shown, the present invention discloses a hydraulic torque connection simulator, comprising a simulator hydraulic cylinder 1, a piston return spring 2, a piston rod, a cylinder upper cover 4, an upper cover 5 and a threaded loading joint 6, the The piston rod is composed of a coaxial and integrated upper piston rod, a piston 3, a large diameter round rod 3-1, a transitional truncated body 3-2 and a small diameter round rod 3-3 from top to bottom. The combination of the large-diameter round rod 3-1, the transition circular platform body 3-2 and the small-diameter round rod 3-3 constitutes the lower piston rod, and the center of the top surface of the simulator hydraulic cylinder 1 is provided with a stepped cylindrical chamber. The stepped cylindrical chamber includes a large-diameter cylindrical cavity 1-1 and a small-diameter cylindrical cavity 1-2 connected up and down, and the piston 3 is tightly plugged in th...

specific Embodiment approach 2

[0013] Specific implementation mode two: as figure 2 As shown, this embodiment is a further description of Embodiment 1. The diameter of the small-diameter round rod 3-3 is d1, and the diameter of the large-diameter round rod 3-1 is d2, d1² / d2² =1 / 10.

specific Embodiment approach 3

[0014] Specific implementation mode three: as Figure 1~Figure 2 As shown, this embodiment is a further description of Embodiment 1. The height of the transitional frustum 3-2 is h1, the height of the large-diameter round rod 3-1 is h2, and the small The height of the diameter round rod 3-3 is h3, the height of the small-diameter cylindrical inner cavity 1-2 is greater than h1+h3, the free height of the piston return spring 2 is h, h is greater than h1+h2, and the piston resets The compressible amount of spring 2 is greater than h-h2.

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Abstract

The invention discloses a hydraulic type torsion connection simulator and relates to a torsion calibration device. A piston rod consists of an upper piston rod, a piston and a lower piston rod, wherein the lower piston rod consists of a large-diameter round rod, a transitional cone body and a small-diameter round rod, a stepped cylindrical cavity is formed at the top end of a hydraulic cylinder ofthe simulator, and comprises a large-diameter cylinder inner cavity and a small-diameter cylinder inner cavity, the piston divides the large-diameter cylinder inner cavity into an upper cavity and alower cavity, a channel is arranged inside the wall of the hydraulic cylinder of the simulator, the lower piston rod is provided with a piston reset spring supported between the piston and the end surface of the ledge of the large-diameter cylinder inner cavity in a sleeved manner, the hydraulic cylinder of the simulator is filled with hydraulic oil, an upper sealing cover of the cylinder is sealed at the top end of the hydraulic cylinder of the simulator, the upper end of the upper piston rod extends out of a sealing hole in the upper sealing cover of the cylinder, an upper cover is fixed onthe upper sealing cover of the cylinder, and a threaded loading joint is in threaded connection with a threaded hole in the upper cover. The simulator has the advantages that the adaptability is strong, the cost can be lowered, and the labor capacity and the labor intensity can be reduced.

Description

technical field [0001] The invention relates to a torque calibration device, in particular to a hydraulic torque connection simulator. Background technique [0002] When the metrology and verification department calibrates electric and pneumatic torque wrenches according to JJF1610-2017 "Calibration Specifications for Electric and Pneumatic Torque Wrenches", it must be equipped with a high torque rate simulator and a low torque rate simulator. [0003] The current simulator uses disc springs as the force buffer unit, so each calibration point must be equipped with a high torque rate simulator and a low torque rate simulator. Calibration requires a large number of simulators, which will inevitably greatly increase the cost, and also increase the labor and labor intensity of the calibration work. Contents of the invention [0004] The purpose of the present invention is to provide a hydraulic torque connection simulator, which can adapt to the calibration of electric and pn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 张多利金龙学王杰李健隽张奭军吴月明郭磊刘金玲袁晓棣金鑫
Owner 哈尔滨市计量检定测试院
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