CN101334262B - Measuring method for angle between two revolving bodys and angle meter - Google Patents

Abstract

The invention relates to a goniometric method used for measuring the rotation angle between two rotating bodies, and a goniometer thereof, belonging to the field of engineering technology. The method comprises the following steps: (1) a precise rotary type potentiometer is fixed on one rotating body near the position of the rotating shaft of the two rotating bodies, the rotating shaft of the potentiometer is parallel to the rotating shaft of the two rotating bodies and assembled with a radial swinging handle which is assembled with a sliding block in a sliding way, the sliding block is assembled with an axial swinging shaft which is assembled together with the other rotating body in a fixed and follow-up way; (2) the distance a between the rotating shaft of the two rotating bodies and therotating shaft of the potentiometer and the distance b between the rotating shaft of the two rotating bodies and the axial swing shaft are arranged; (3) when the two rotating bodies rotate, the measured rotation angle Alpha of the potentiometer is measured and calculated; (4) the functional relation formula of the rotation angle Beta between the two rotating bodies and the measured angle Alpha is: sin ( Alpha subtracts Beta) is equal to (a divided by b) sin Alpha; (5) the rotation angle Beta between two rotating bodies can be obtained by calculation.

Description

A kind of angle-measuring method that is used to measure corner between two rotary bodies

Technical field

The present invention relates to angle-measuring method and clinometer rule thereof that a kind of field of engineering technology is used to measure corner between two rotary bodies.

Background technology

When structural design, the relative angle when regular meeting needs the measuring system running between the turning axle.General commonly used method is to adopt rotary encoder or angle measurement scrambler to finish the measurement of relative angle, uses often in reality the stator of scrambler and rotor to be separately fixed in relative rotation on two parts, and makes their axis pass through rotation.This method is simple and convenient, and the output angle of scrambler is exactly the actual angle of two rotating parts.But because the overall objective restriction, the axial space of system is often very limited, and clinometer rule can't be arranged on the rotation, and existing method and apparatus can't be used, and brings a difficult problem for construction or design.

Summary of the invention

At the problems referred to above, task of the present invention provides angle-measuring method and the clinometer rule thereof that a kind of field of engineering technology is used to measure corner between two rotary bodies, only converts by simple proportional, just can get the angle between the turning axle in the shaft system.

For finishing above-mentioned task, method of the present invention is: a kind of angle-measuring method that is used to measure corner between two rotary bodies, this method comprises the steps:

(1) near one of them rotary body of the position two rotary body rotating shafts, fixes a rotary current potential meter of precision, the shaft parallel of potentiometric rotating shaft and two rotary bodies, handle is radially put in one of assembling in the potentiometric rotating shaft, put radially that slidable fit has a slide block on the handle, be equipped with an axial balance staff on the slide block, balance staff and the location servo-actuated of another rotary body are assembled together;

(2) the distance b between setting two rotary body rotating shafts and the potentiometric rotating shaft apart from a, two rotary body rotating shafts and axial balance staff;

When (3) two rotary bodies rotate, calculate potentiometric rotation actual measurement angle α;

(4) then the functional relation between corner β between two rotary bodies and the actual measurement angle is: $\sin (\mathrm{\α}-\mathrm{\β})=\frac{a}{b}\sin \mathrm{\α}$ ；

(5) by calculating, can get the corner β between two rotary bodies.

Simultaneously, corresponding with said method, the present invention also provides a kind of clinometer rule that is used to measure corner between two rotary bodies, and this clinometer rule is counted the master by an accurate rotary current potential and constituted, potentiometric rotating shaft side body bottom is provided with mount pad, is equipped with in the potentiometric rotating shaft and radially puts handle.

Described pendulum handle is a V shape pendulum handle.

Slidable fit has slide block in the handle fork of described V shape pendulum handle, and slide block is provided with an axial balance staff.

Described pendulum handle is a slide bar type pendulum handle, and slip cap is equipped with a slide block on the slide bar type pendulum handle, and slide block is provided with an axial balance staff.

This programme is installed in well-to-do relatively position, space in the system with clinometer rule, and it is flexible to have an installation site, the angle easy characteristics that convert.Through application verification, respond well, not only accurately angle measurement, and the overall dimensions of having dwindled system are fully used the useful space.The present invention structurally is easy to realize, need not complicated parts or mechanism; Survey angle and need angle measurement degree conversion relation simple; Can flexible arrangement in structure, can effectively utilize the remaining space of system.

Description of drawings

Fig. 1 is an application structure synoptic diagram of the present invention;

Fig. 2 is the structural representation of clinometer rule of the present invention.

Concrete real-time mode

As shown in Figure 1 and Figure 2, when we need measure between the rotational parts 1,2 relative rotation around rotation.Select for use precision potentiometer as clinometer rule, pot is fixedlyed connected with rotational parts 1, and slide block is fixedlyed connected with rotational parts 2, and the fork-shaped part is connected on the potentiometric angle measurement axle by holding screw, and slide block can slide in the chute of fork-shaped part.

In the actual motion process, the actual measurement angle that pot is directly measured is the relative rotation α between fork-shaped part and the rotational parts 1, and the corner β between the rotational parts 1,2 can draw by simple trigonometric function relation.In design process, suppose that the distance between rotation and the precision potentiometer rotating shaft is a, the distance between rotation and slide block center line or the balance staff is b, then the angle of asking and the relation of actual measurement between the angle suc as formula 1:

$\sin (\mathrm{\α}-\mathrm{\β})=\frac{a}{b}\sin \mathrm{\α}---\left(1\right)$

By calculating, can get the corner β between two rotary bodies.

Claims (1)

1. an angle-measuring method that is used to measure corner between two rotary bodies is characterized in that, this method comprises the steps:

(1) near one of them rotary body of the position rotating shaft of two rotary bodies, fixes a rotary current potential meter of precision, the shaft parallel of potentiometric rotating shaft and two rotary bodies, handle is radially put in one of assembling in the potentiometric rotating shaft, put radially that slidable fit has a slide block on the handle, be equipped with an axial balance staff on the slide block, balance staff and the location servo-actuated of another rotary body are assembled together;

(2) between the rotating shaft of setting two rotary bodies and the potentiometric rotating shaft apart from the rotating shaft of a, two rotary bodies and the distance b of axial balance staff;

When (3) two rotary bodies rotate, calculate potentiometric rotation actual measurement angle α;

(4) then the functional relation between corner β between two rotary bodies and the actual measurement angle is:

$\sin (\mathrm{\α}-\mathrm{\β})=\frac{a}{b}\sin \mathrm{\α};$

(5) by calculating, can get the corner β between two rotary bodies.

Images