KR101758136B1 - Varying measuring device of cam yoke - Google Patents

Varying measuring device of cam yoke Download PDF

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Publication number
KR101758136B1
KR101758136B1 KR1020150144415A KR20150144415A KR101758136B1 KR 101758136 B1 KR101758136 B1 KR 101758136B1 KR 1020150144415 A KR1020150144415 A KR 1020150144415A KR 20150144415 A KR20150144415 A KR 20150144415A KR 101758136 B1 KR101758136 B1 KR 101758136B1
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South Korea
Prior art keywords
yoke
cam
cam yoke
jig
moving
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KR1020150144415A
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Korean (ko)
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KR20170044830A (en
Inventor
이상원
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일륭기공(주)
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/221—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to steering wheels, e.g. for power assisted steering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/22—Feeler-pin gauges, e.g. dial gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/06—Steering behaviour; Rolling behaviour

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

More particularly, the present invention relates to an apparatus for measuring variable load of a cam yoke. More particularly, the present invention relates to an apparatus for measuring the variable load of a cam yoke by connecting a jig to which a cam yoke is coupled to a moving means, The present invention relates to an apparatus for measuring variable actuation of a cam yoke, which is provided on a front upper surface of a base of a cam yoke to measure an operating load generated in the cam yoke according to a displacement.

Description

TECHNICAL FIELD [0001] The present invention relates to a variable yoke measuring device,

More particularly, the present invention relates to an apparatus for measuring variable load of a cam yoke. More particularly, the present invention relates to an apparatus for measuring the variable load of a cam yoke by connecting a jig to which a cam yoke is coupled to a moving means, The present invention relates to an apparatus for measuring variable actuation of a cam yoke, which is provided on a front upper surface of a base of a cam yoke to measure an operating load generated in the cam yoke according to a displacement.

2. Description of the Related Art Generally, a steering apparatus is a device for changing a traveling direction of a vehicle according to a driver's intention. It is a device for assisting a driver to advance a vehicle in a desired direction by arbitrarily changing a turning center of a front wheel of the vehicle.

In this vehicle steering apparatus, the steering force generated by the driver operating the steering wheel is transmitted to the rack pinion mechanism through the steering shaft and eventually changes the direction of both wheels.

1 is a schematic block diagram of a general automotive rack-and-pinion steering system.

As shown in the drawing, the conventional rack-pinion type steering system includes a steering wheel 100 disposed in a driver's seat, a steering shaft 105 connected to the steering wheel 100, a steering column 103 for fixing the steering shaft to the vehicle body, A gear box 130 including a rack gear 110 and a pinion gear 120 for converting the rotational force inputted from the internal gear mechanism 130 into a linear motion, a rack bar 140 having inner ball joints 135 at both ends thereof, And a tie rod 150 formed integrally with the ball of the tie rod 135.

The tie rod 150 is connected to the outer ball joint 155 and transmits a force to the knuckle 159 to steer the tire 158.

FIGS. 2 and 3 are diagrams showing a conventional cam yoke 300 capable of supporting a rack bar disclosed in Japanese Patent Laid-Open No. 10-2010-0055724. As shown in FIG. 2, A support yoke 310 inserted into the cylinder 250 of the box 130 and supporting the rear surface of the rack bar 140 at its front surface and having a support surface 315 protruding rearward, A support boss 335 having a first spring retaining jaw formed at one side of an outer circumferential surface thereof is provided at the center of the rear surface of the support yoke 310, A support cam 330 protruding rearward from the outer periphery of the support cam 330 and having a first guide surface 331 formed as an inclined surface so as to be reduced in width from the outer circumferential surface to the front surface, The first guide surface 331 and the second guide surface 331 of the second guide plate 330, And a spring insertion groove 359 is formed in the center of the front surface of the spring insertion groove 359. The spring insertion groove 359 has a through hole at the rear surface thereof and a spring insertion groove A yoke plug 350 having a second spring engaging protrusion 355 formed at one side thereof on an inner circumferential surface of the coupling boss 359 and a yoke plug 350 which is inserted into the outer circumference of the coupling boss 335, A torsion spring 340 supported on the second spring retaining jaw 355 and coupled to support the support cam 330 forward, and a torsion spring 340 supported on the first guide surface 331 and the second guide surface 351 And an assembling nut 360 coupled to a fastening boss 335 passing through the through hole of the yoke plug 350 to apply a torsion to the torsion spring 340 while the wide portions 333 and 353 are in close contact with each other. do.

The support yoke 310 is brought into close contact with the rear surface of the rack bar 140 which is engaged with the pinion gear 120 so that the front surface of the support yoke 310 is closely contacted with the support cam 330 and the torsion gear 120, And is supported by a yoke plug 350 via a spring 340. The front surface supports the rear surface of the rack bar 140 and the rear surface has a support surface 315 protruding rearward.

The support cam 330 coupled to the support surface 315 of the support yoke 310 is supported by a torsion spring 340 supported by a yoke plug 350 fixed to the cylinder 250 of the gear box 130 The first guide surface 331 of the support cam 330 abuts against the second guide surface 351 of the yoke plug 350 and pushes the support yoke 310 toward the front side.

The support yoke 310 slides on the rear surface of the rack bar 140 and the first yoke 310 of the support cam 330 rotates so that the rack bar 140 and the pinion gear 120 are in close contact with each other, The torsion spring 340 is engaged with the second spring engagement protrusion 355 of the locking yoke 310 and the support yoke 310 so that the torsion spring 340 is elastically deformed to push the support cam 330 at a constant pressure, And the pinion gear 120 are compensated for.

The support cam 330 supports the support surface 315 of the support yoke 310. The support cam 330 has a fastening boss 335 formed at the center of the rear surface of the support yoke 310, Respectively.

A first guide surface 331 is formed on the outer surface of the rear surface of the support cam 330 so as to protrude rearward and has an inclined surface so as to be reduced in width from the outer circumferential surface to the front surface. And is in surface contact with the second guide surface 351.

The first guide surface 331 is formed in a spiral shape on the outer circumferential surface of the support cam 330. The first guide surface 331 has a spiral shape in which the width from the first wide portion 333 having the widest width of the outer circumferential surface, And is formed as an inclined surface.

The second guide surface 351 is formed in the same shape as that of the first guide surface 331 in a surface contact manner. The width of the second guide surface 351 from the front end of the outer circumferential surface of the yoke plug 350, And is formed into a spiral sloped surface of reduced size.

Accordingly, the first guide surface 331 moves along the second guide surface 351 while being slid, thereby eventually moving toward the front side.

Further, between the support surface 315 of the support yoke 310 and the front surface of the support cam 330, a clearance-compensating elastic body 320 is coupled to compensate for the clearance of the support yoke 310 by elastic deformation .

Here, the clearance-compensating elastic body 320 has a cylindrical housing whose front face is closed so as to be in close contact with the front face of the support cam 330, and a face formed by an outer diameter and an inner diameter in an annular shape inserted into the inner peripheral face of the housing, And a spacer which is in close contact with the support surface 315 of the support yoke 310 and is coupled to the bent end of the housing at the front of the elastic support.

When the support cam 330 is moved forward by the resilient rotational restoring force of the torsion spring 340 at the rear of the gap compensating elastic body 320 and the supporting yoke 310 is supported by the elastic force of the elastic supporter 310 And the rack bar 140 are uniformly compensated.

The spacer is coated with the anti-vibration member so as to prevent noise due to contact with the support surface 315 of the support yoke 310 due to the impact that is reversely input from the road surface when the vehicle is running.

The yoke plug 350 is coupled to the cylinder 250 of the gear box 130 while supporting the torsion spring 340 and applying pressure to the support cam 330. The yoke plug 350 has a threaded portion And is provided with a threaded threaded portion so as to be threadedly engaged with the gear box 130 in which the threads and the thread are engaged.

The yoke plug 350 has a second guide surface 351 which is in surface contact with the first guide surface 331 of the support cam 330 on the outer surface of the front surface and has a diameter And the spring insertion groove 359 is formed in a reduced shape.

A second spring engaging step 355 is formed on the inner circumferential surface of the spring insertion groove 359. The second spring engaging step 355 is formed on the inner circumferential surface of the spring insertion groove 359, And is engaged with the groove 359.

The rear surface of the yoke plug 350 is provided with a tool engaging portion 365 protruding rearward and inserted into the fastening tool, thereby facilitating the assembly of the yoke plug 350.

The torsion spring 340 is inserted into the outer circumference of the fastening boss 335 and seated in the spring insertion groove 359. The first support portion 341 formed at the front end of the torsion spring 340 is engaged with the first spring engagement jaw of the support cam 330 And the second support portion 343 formed at the rear end is supported and engaged with the second spring retaining jaw 355. [

The support cam 330 and the yoke plug 350 of the rack bar 140 are coupled by a cooperating nut 360 so that a torsional force is generated in the torsion spring 340 coupled to the support cam 330 and the yoke plug 350.

The fastening bosses 335 of the support cams 330 are press-fitted into the fastening nuts 360. After the fastening bosses 335 are threaded on the outer circumferential surface of the fastening bosses 335 to penetrate the through holes of the yoke plugs 350, And may be coupled to the nut 360 in a screwed manner.

That is, the first support portion 341 and the second support portion 343 of the torsion spring 340 are engaged with the first spring engagement protrusion 355 and the second spring engagement protrusion 355 And the first guide surface 331 and the second guide surface 351 are brought into contact with each other while the fastening bosses 335 of the support cams 330 are passed through the through holes of the yoke plugs 350, The torsion force is applied to the spring 340 so that the first wider portion 333 of the first guide surface 331 and the second wider portion 353 of the second guide surface 351 come into contact with each other, 335 are fastened to the rear side of the yoke plug 350 by the cooperating nut 360.

The support cam 330 and the yoke plug 350 fastened with the cooperating nut 360 cancel the elastic rotation restoring force of the torsion spring 340 due to the fastening force of the cooperating nut 360 so that the first wider portion 333 The second wide portion 353 is inserted into the cylinder 250 of the gear box 130 and is fastened.

When the screw 360 is released from the cylinder 250 of the gear box 130, the elastic rotation restoring force of the torsion spring 340 is generated and the first guide surface of the support cam 330 331 move forward while rotating on the second guide surface 351 of the yoke plug 350 to support the playability compensating elastic member 320 or the support yoke 310.

The support cam 330 and the yoke plug 350, which are the essential parts of the above-described rack bar supporting device, can cancel the elastic rotation restoring force of the torsion spring 340 due to the fastening force of the co- The wide portion 333 and the second wide portion 353 are held in contact with each other and supplied to the production line as a cam yoke assembly.

However, the problem of the conventional variable-load-type load measuring device of the cam yoke is that, in order to measure the operating load of the support yoke 330 by the elastic force of the torsion spring 340, It is necessary to measure the operating load of the support yoke 330 while varying the displacement of the cam yoke 300 in the close contact state so that the operating load of the support yoke 330 on the load side of the cam yoke 300 can be accurately measured A problem that can not be measured occurred.

In order to measure the clearance between the pinion gear 120 and the rack bar 140 while the support yoke 330 is moved forward by the elastic force of the torsion spring 340 to compensate the clearance, The displacement of the cam yoke 300 must be changed in the state where the operator holds the cam yoke 300 by hand so that the displacement of the cam yoke 300 The operating load generated in the support yoke 330 can not be accurately measured.

That is, in order to measure the clearance between the pinion gear 120 and the rack bar 140 when the cam yoke 300 is mounted on the cylinder 250 and the cam yoke 300 normally compensates for the clearance, And the pressure of the support yoke 330 is firstly measured by the resilient force of the torsion spring 340. When the support yoke 330 is in a state of being supported by the support yoke 330, The operation load of the support yoke 330 must be secondarily measured by varying the displacement of the yoke plug 330 and the yoke plug 350. The operator must hold the cam yoke 300 by hand, The operating load of the cam yoke 300 can not be accurately measured. As a result, the productivity of the product deteriorates due to the reliability of the cam yoke 300.

In addition, since the operating load of the cam yoke 300 must be measured only by a manual operation, the measurement time of the cam yoke 300 becomes long.

In order to solve the above problems, according to the present invention, a jig to which a cam yoke is coupled is installed in a moving means provided on a base upper surface, and a pressure measuring means for measuring an operating load on a load side of a cam yoke is installed on an upper surface of the base And the distance measurement means capable of measuring the moving distance of the cam yoke contacting the pressure measuring means is installed in the base. Therefore, a plurality of cam yokes can be arranged in the same environment, It is possible to precisely measure the operating load of the cam yoke because it is possible to measure the actual vehicle mounting state, and it is possible to improve the reliability of the measured cam yoke by measuring a plurality of load loads on the load side of the cam yoke in the same environment, It is not necessary to measure the operating load of the cam yoke load side by the number of operations as shown in FIG. And an object of the present invention is to provide a variable load measuring device for a real variable state of a cam yoke capable of improving productivity of a product.

According to an aspect of the present invention,

A base;

A jig having a cam yoke coupling hole vertically formed on an upper surface of the base and having a cam yoke screwed into the center thereof;

A cam yoke screwed into the cam yoke coupling hole;

Moving means for moving the jig to which the cam yoke is coupled to the front and rear of the base;

A pressure measuring means provided on an upper surface of the base so as to be in contact with a load side of the cam yoke and having a pressure sensor contact portion for measuring an operating load of the cam yoke;

And distance measuring means for measuring a moving distance of the jig.

According to the present invention, the jig to which the cam yoke is coupled is provided in a moving means provided on the upper surface of the base, and a pressure measuring means for measuring an operating load on the load side of the cam yoke is provided on the upper surface of the base, The distance measuring means for measuring the moving distance of the cam yoke is installed on the base, so that the first camber mounting state and the second camber mounting state of the cam yoke are measured according to the displacement in the same environment So that the effect of precisely measuring the operating load of the cam yoke can be expected.

In addition, it is possible to improve the reliability of the measured cam yoke by measuring a plurality of cam yoke load operating loads in the same measurement environment.

In addition, since it is not necessary to measure the operating load on the load side of the cam yoke by a number of operations as in the prior art, the measurement time of the cam yoke can be remarkably reduced and the productivity of the product can be improved.

1 shows a general automotive steering system.
Fig. 2 and Fig. 3 show a conventional rack bar supporting device for an automotive steering system.
4 is an exploded perspective view of a cam yoke of an actual vehicle state variable load measuring device and a cam yoke according to the present invention.
FIG. 5 is a perspective view showing a combined state of a cam yoke and an actual vehicle-state variable load measuring device of the present invention. FIG.
6 is a sectional view of an actual vehicle-state variable load measuring apparatus of a cam yoke according to the present invention.
Fig. 7 to Fig. 10 are operational states showing the operating state of the actual vehicle-state variable load measuring device of the cam yoke of the present invention. Fig.
11 is a sectional view showing a state in which a cam yoke and a measurement cover of the present invention are engaged.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying FIGS. 4 to 11. FIG.

Prior to the description of the present invention, the same reference numerals are used for the same components as those of the prior art, and the description of the same reference numerals will be omitted.

According to the drawings,

A base 10;

A jig 20 vertically formed on the upper surface of the base 10 and having a cam yoke coupling hole 21 to which the cam yoke 300 is screwed,

A cam yoke (300) screwed into the cam yoke coupling hole (21);

A moving means 50 for moving the jig 20 coupled with the cam yoke 300 to the front and rear of the base 10;

A pressure measuring means 30 provided on the upper surface of the base 10 so as to be in contact with the load side of the cam yoke 300 and equipped with a pressure sensor contact portion 33 for measuring an operating load of the cam yoke 300, and;

And a distance measuring means (40) capable of measuring a moving distance of the jig (20).

The pressure measuring means 30 for measuring the operating load on the load side of the cam yoke 300 includes a pressure sensor 32 having a pressure sensor contact portion 33 which is in contact with the entire surface of the cam yoke 300, And a pressure display section 31 for displaying the measured value in the pressure sensor 32. [

The measurement cover 90 is coupled to the front surface of the support yoke 330 which is the load side of the cam yoke 300 to which the pressure sensor contact portion 33 is contacted by the magnet 92 as shown in FIG. An insertion groove 91 is formed in the middle of a coupling surface of the cam yoke 300 to be coupled to the load side of the cam yoke 300, And the magnet 92 is engaged.

The distance measurement means 40 for measuring the distance moved while the cam yoke 300 is in contact with the pressure sensor contact portion 33 includes a distance sensor contact portion 42 and a distance sensor contact portion And a distance gauge 41 for indicating the movement distance of the jig 20 in contact with the jig 20. The center of the jig 20 is provided with a moving part 23 having an " And the distance measurement means 40 can be spaced apart from the upper surface of the base 10 by the pressure measuring means 30 by the distance of the moving portion 23, The distance of the cam yoke 300 coupled to the jig 20 due to the increase of the contact area with the distance sensor contact portion 42 that measures the moving distance of the jig 20 can be facilitated, As much as possible.

A pressure sensor 32 provided on the upper surface of the base 10 for measuring the state of mounting the cam yoke 300 and a distance sensor contact 42 for measuring the displacement of the cam yoke 300 are shown in Figs. The pressure sensor contact portion 33 and the distance sensor contact portion 42 provided on the pressure sensor 32 are always moved to the cam yoke 330 To be brought into contact with the center of the portion (23).

The moving means (50) for moving the jig (20) forward and backward of the base (10)

The guide portion 60 is formed long on the upper surface of the base 10,

The jig 20 to which the cam yoke 300 is screwed is coupled to the upper surface of the guide portion 60 so as to protrude therefrom,

The screw hole 22 is formed in the jig 20 so as to be positioned directly under the cam yoke coupling hole 21,

A rotary shaft 81 having a thread 82 penetrating the screw hole 22 is formed,

And the jig 10 is moved forward and backward along the guide portion 60 in a direction in which the moving knob 80 is rotated by coupling the moving handle 80 to the end of the rotary shaft 81 do.

4, the mounting plate 70 is vertically formed on the rear surface of the guide portion 60 provided on the upper surface of the base 10, and the through holes 71 And a jig 20 coupled to the guide portion 60 is moved forward and backward along a direction in which the moving handle 80 is rotated by providing a rotary shaft 81 coupled to an end of the moving handle 80 do.

The measurement of the actual vehicle mounting state according to the displacement of the cam yoke 300 thus combined will be described with reference to Figs. 7 to 10 as follows.

First, as shown in FIG. 7, the cam yoke 300 is screwed into the cam yoke coupling hole 21 of the jig 20 located at the center of the guide portion 60.

When the cam yoke 300 is coupled to the jig 20, the rotary knob 50 provided on the moving means 50 is rotated clockwise to rotate the rotary shaft 81 provided with the thread 82.

As the rotary shaft 81 rotates, the jig 20 passing through the rotary shaft 81 moves along the guide portion 60 toward the front of the base 10 as shown in FIG. 8, The moving part 23 provided on the yoke 300 and the jig 20 are brought into contact with the pressure sensor contact part 33 and the distance sensor contact part 42 of the pressure measuring device 30 at the same time.

When the cam yoke 300 and the moving part 23 contact the pressure sensor contact part 33 and the distance sensor contact part 42, respectively, the numbers displayed on the pressure display part 31 are set to zero as shown in FIG. do.

At this time, it is revealed that the distance gauge 41 of the distance measuring means 40 can also be set to zero.

When the pressure display part 31 is set to zero, the operation knurled nut 360 screwed to the cam yoke 300 is separated so that an operating load is generated on the load side of the cam yoke 300, The mounting state is measured and displayed on the pressure display section 31.

The support yoke 310 which is moved forward due to the elastic force of the torsion spring 340 installed inside the cam yoke 30 can be used as the support yoke 310 when the measured value appearing on the pressure display part 31 indicates a value between 20 + So that the jig 20 to which the cam yoke 300 is coupled is moved backward by 0.5 mm to the back of the base 20 by turning the moving knob 80 by hand and rotating it counterclockwise as shown in Fig.

At this time, it can be seen that the jig 20 is moved by 0.5 mm due to the distance gauge 41 of the distance measuring means 40 coupled to the upper surface of the base 10.

The movement of the jig 20 rearward of the base 10 means that clearance is generated between the pinion gear 120 and the rack bar 140 of the vehicle on which the cam yoke 300 is mounted.

The load side of the cam yoke 300 generates an operating load on the load side by the elastic force of the torsion spring 340 by the distance that the jig 20 is moved so that the pressure display unit 31 measures the state of the second actual vehicle If the measured value displayed on the pressure display unit 31 indicates 12 + 4kgf to 12-4kgf, it means that the cam yoke 300 operates normally.

At this time, the measurement of the cam yoke 300 which generates the operating load according to the displacement is preferably performed after 72 hours in a state where the cam yoke 300 is assembled.

On the other hand, if the measured value of the actuation load of the cam yoke 300 appearing on the pressure display unit 31 exceeds 20 + 4 kgf to 20-4 kgf by measuring the first actual vehicle mounted state, the cam yoke 300 does not operate normally The cam knob 300 coupled to the jig 20 is disengaged after the moving knob 80 is rotated counterclockwise.

Since a plurality of cam yoke 300 loads are repeatedly inspected to repeatedly perform an operation load in accordance with the displacement, the measurement time of the cam yoke 300 can be remarkably reduced.

Further, since the operating load generated on the load side of the cam yoke 300 according to the displacement is measured in the same environment, the reliability roll of the cam yoke 300 can be improved, thereby improving the production of the cam yoke 300 .

A measurement cover 90 with a magnet 92 embedded therein is detachably coupled to a load side of the cam yoke 300 and a pressure sensor contact portion 33 and the cam yoke 300, which generates an operating load according to the displacement, can be measured with maximum precision.

10: base, 11: installation stand,
20) jig, 21: cam yoke coupling hole,
22: screw hole, 23: moving part,
30: pressure measuring means, 31: pressure display unit,
32: pressure sensor, 33: pressure sensor contact,
40: distance measuring means, 41: distance gauge,
42: distance sensor contact, 50: moving means,
60: guide portion, 70: mounting plate,
71: through hole, 80: shift knob,
81: rotation shaft, 82: thread,
90: measurement cover, 91: insertion groove,
92: magnet,
100: steering wheel, 103: steering column,
105: steering shaft, 110: rack gear,
120: pinion gear, 130: gear box,
135: Inner ball joint, 140: Rack bar,
150: tie rod, 155: outer ball joint,
158: tire, 159: knuckle,
250: cylinder, 310: support yoke,
315: support surface, 320: clearance compensating elastomer,
330: support cam, 333: wide portion,
331: first guide surface, 335: fastening boss,
340: torsion spring, 341: first support portion,
343: second support portion, 350: yoke plug,
351: second guide surface, 350: spring insertion groove,
353: wide portion, 355: second spring jaw,
360: coupling nut, 365: tool coupling portion,

Claims (5)

A base 10;
A jig 20 vertically formed on the upper surface of the base 10 and having a cam yoke coupling hole 21 to which the cam yoke 300 is screwed,
A cam yoke (300) screwed into the cam yoke coupling hole (21);
A moving means 50 for moving the jig 20 coupled with the cam yoke 300 to the front and rear of the base 10;
A pressure measuring means 30 provided on the upper surface of the base 10 so as to be in contact with the load side of the cam yoke 300 and equipped with a pressure sensor contact portion 33 for measuring an operating load of the cam yoke 300, and;
And a distance gauge 41 installed on the upper surface of the base 10 so as to measure and display the moving distance of the jig 20 in contact with the distance sensor contact portion 42,
The moving means 50 includes a guide portion 60 formed long on the upper surface of the base 10,
The jig 20 to which the cam yoke 300 is screwed is coupled to the upper surface of the guide portion 60 so as to protrude therefrom,
The screw hole 22 is formed in the jig 20 so as to be positioned directly under the cam yoke coupling hole 21,
A rotary shaft 81 having a thread 82 penetrating the screw hole 22 is formed,
And the jig 10 is moved forward and backward along the guide portion 60 in a direction in which the moving knob 80 is rotated by connecting the moving handle 80 to the end of the rotary shaft 81 A variable yaw moment measuring device of the cam yoke.
The method according to claim 1,
The moving means 50 provided in the jig 20 is operated so that the jig 20 and the cam yoke 300 coupled to the jig 20 are brought into contact with the distance measuring means 40 and the pressure measuring means 30 and,
The pressure display unit 31 provided in the pressure measuring means 30 in contact with the jig 20 and the cam yoke 300 is set to zero,
An operating load is generated on the load side of the cam yoke 300 which is in contact with the pressure measuring means 30 so that the operating load is displayed on the pressure indicating portion 31 to measure the first-
The jig 20 provided with the cam yoke 300 which is in contact with the pressure measuring means 40 by operating the moving knob 80 provided on the moving means 50 is moved to the rear of the base 10 and the distance gauge 41 and the operating load generated on the load side of the cam yoke 300 is displayed on the pressure display unit 31 so as to measure the state of mounting of the cam yoke 300 on the secondary side Wherein the variable yoke is provided with a variable yoke.
delete The method according to claim 1,
Wherein the jig (20) further comprises a moving part (23) connected to the distance sensor contact part (42) provided on the distance measuring device (40).
delete
KR1020150144415A 2015-10-16 2015-10-16 Varying measuring device of cam yoke KR101758136B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798532A (en) 2012-08-15 2012-11-28 杭州沃镭科技有限公司 Device for testing performance of spring brake chamber for automobiles
KR101407951B1 (en) 2013-03-19 2014-06-17 한국수력원자력 주식회사 Test equipment for the measurement of compress force and distance of the motor operator springpack
JP2015021962A (en) 2013-07-23 2015-02-02 ボルディニョン シルバーノ ソチエタ レスポンサビリタ リミテ Device and method for checking state of charge of gas spring

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102798532A (en) 2012-08-15 2012-11-28 杭州沃镭科技有限公司 Device for testing performance of spring brake chamber for automobiles
KR101407951B1 (en) 2013-03-19 2014-06-17 한국수력원자력 주식회사 Test equipment for the measurement of compress force and distance of the motor operator springpack
JP2015021962A (en) 2013-07-23 2015-02-02 ボルディニョン シルバーノ ソチエタ レスポンサビリタ リミテ Device and method for checking state of charge of gas spring

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