CN2184200Y

CN2184200Y - Composite arm installation for measuring static torque

Info

Publication number: CN2184200Y
Application number: CN 93226578
Authority: CN
Inventors: 高军勇
Original assignee: SHANGHAI ELECTRIC APPLIANCE SCIENCE INST MINISTRY OF MACHINERY SHANGHAI
Current assignee: SHANGHAI ELECTRIC APPLIANCE SCIENCE INST MINISTRY OF MACHINERY SHANGHAI
Priority date: 1993-11-13
Filing date: 1993-11-13
Publication date: 1994-11-30
Anticipated expiration: 2003-11-13

Abstract

The utility model discloses a composite arm installation for measuring static torque. The utility model is the mechanical part of an intelligent locked-rotor torque measuring instrument, is suitable for measuring static torque of rotating machines especially motors. The utility model is an improvement on a single arm installation, a force arm is added to a single force arm, the force arm can be used for measuring the value of the static torque at non horizontal position, and thereby, the problem of the horizontal regulation of the single force arm is solved, the testing efficiency is enhance, the influence to the measurement caused by vibration is lightened, and the reliability and the accuracy of the measurement are ensured.

Description

Composite arm installation for measuring static torque

The utility model relates to a kind of particularly composite force arm assembly of motor shaft static torque of turning axle of measuring, and it is the mechanical part of intelligent rotating machinery locked-rotor torque measurement instrument.

Rotating machinery, the particularly test of motor rotation blockage torque replaces spring target locked-rotor torque measuring instrument though have with sensor, and its measurement arm of force is a single arm type, be that shaft coupling is connected with a long arm of force, and contact with pull-type or pressure type with sensor by the arm of force and to measure.This single arm structure, its feature is simple in structure, as long as tested rotating shaft is connected with the arm of force with shaft coupling, adjusts the arm of force to level during use.This metering system owing to be single arm of force, measured and is wanted accurately must adjust the installation site of sensor, and the adjustment more complicated of having relatively high expectations is brought many inconvenience to measurement.

Task of the present utility model provide a kind of simple in structure, measure composite force arm assembly easily, can measure the particularly quiet square of walking around of various motor shafts of various rotating machineries exactly.If mix the instrument that signal processing circuit, A/D converter and single chip microcomputer just can become a kind of intelligent measuring locked-rotor torque.

Task of the present utility model is done in such a way that the arm of force that increases an equal in length on single arm structure that former static torque is measured, and structure becomes the compound arm of force.This composite force arm assembly, structure is very simple, can solve and measure the static torque of rotating shaft, and need carry out horizontal adjustment, guaranteed that the arm of force is in can both exert all one's strength arm lengths direction and sensor of any position and is subjected to force direction to keep vertical, the relative position of the upper and lower arm of force remains constant, and hence one can see that measuring position and horizontal direction are irrelevant.

Composite force arm assembly of the present utility model, since simple in structure, easily manufactured, the horizontal adjustment problem in measuring solved, therefore improve measuring speed widely, also alleviate vibration, thereby improve measuring stability and measuring accuracy.

Explain detailedly below in conjunction with drawings and Examples.

Fig. 1 is the structural drawing of the utility model composite force arm assembly.

Fig. 2 is that the A of Fig. 1 is to diagrammatic sketch.

See figures.1.and.2, the microscler arm of force (2) and sensor (4) that the composite force arm assembly comprises a shaft coupling (1) and connects with it have increased an arm of force (5) through improving, and the arm of force (2) is called upper arm, and the arm of force (5) is called the arm of force down.Its installation site is that upper arm (2) and shaft coupling (1) are fastening, and sensor (4) is housed on the following arm of force (5), and upper and lower arm of force sky is enclosed within on the pivot pin (6).

The composite force arm assembly is one kind of multiple turning axle static torque measurement mechanism, for example motor of rotating machinery, steam turbine, Adjustable wrench, motor car engines or the like.In order to adapt to the measurement of multiple rotating shaft, only needing to change axle sleeve can measure, so shaft coupling is multiple shape.As the shaft coupling (1) of Fig. 1, it is square also can making the ring flange rear portion.

Claims

1, a kind of composite force arm assembly of the measuring static torque microscler arm of force (2) and sensor (4) of comprising a shaft coupling (1) and connecting with it, it is characterized in that it has increased by an arm of force, and changed the installation site of sensor, composite force arm assembly after the improvement, the former arm of force (2) is that upper arm and shaft coupling (1) are fastening, an arm of force that increases is for loading onto sensor (4) on the arm of force (5) down, and upper arm (2) and the following arm of force (5) sky are enclosed within on the pivot pin (6).

2, composite force arm assembly according to claim 1 is characterized in that the rear portion of shaft coupling (1) is square.