CN203534493U

CN203534493U - Device for measuring toe-in angle and camber angle of automotive torsion beam

Info

Publication number: CN203534493U
Application number: CN201320646328.1U
Authority: CN
Inventors: 谢长兵
Original assignee: ANHUI VIE AUTOMOBILE PARTS Co Ltd
Current assignee: ANHUI VIE AUTOMOBILE PARTS Co Ltd
Priority date: 2013-10-18
Filing date: 2013-10-18
Publication date: 2014-04-09
Anticipated expiration: 2023-10-18

Abstract

The utility model relates to the technical field of measurement of a toe-in angle and a camber angle of an automotive torsion beam, and specifically relates to a device for measuring a toe-in angle and a camber angle of an automotive torsion beam. The device comprises a positioning mechanism which is disposed on a base and is used for clamping a positioning torsion beam, and further comprises a support which is disposed on the base and presses against an installation end face of a brake disc, wherein three dial indicators are disposed on the support; the three indicators include two measuring rods, and a first dial indicator and a second indicator which are parallel in horizontal planes and are disposed at an interval, and a third dial indicator which is disposed at a position above the space interval between the first dial indicator and the second dial indicator; measuring ends of the three dial indicators press against the installation end face of the brake disc. The toe-in angle and the camber angle of the torsion beam can be obtained by processing measurement values from the three dial meters by using the transformation relations of trigonometric functions.

Description

Automobile is turned round the measurement mechanism of beam toe-in angle and camber angle

Technical field

The utility model relates to the field of measuring technique that automobile is turned round beam toe-in angle and camber angle, and particularly a kind of automobile is turned round the measurement mechanism of beam toe-in angle and camber angle.

Background technology

Turn round beam as the important component part of automotive suspension, turn round the two ends of beam and be arranged to the brake flange installation end face parallel with brake flange card, brake flange with turn round the brake flange that arranges on beam and end face is installed is fastenedly connected, brake flange external plates face arranges wheel hub and tire, the central plane of tire is parallel with the plate face of turning round the setting of beam two ends, can find out that the toe-in angle of automobile and the size of camber angle are directly relevant with the plate face of turning round the setting of beam two ends, and the toe-in angle of automobile and camber angle are two very important angles, the two can guarantee the straight-line travelling of vehicle stabilization and the portability turning to, and can reduce the wearing and tearing of tire and turning member in Vehicle Driving Cycle.

Specifically, camber angle refers to that the angle of wheel and pedal line is called camber angle from headstock prestige to wheel.Wheel top is outward-dipping get on the occasion of, slope inwardly and get negative value, the load of vehicle is differentiated when having people to take and not taking, the object that designs the earliest camber angle is when adapting to the variation of this load, appoint and so can guarantee the earth-grasping force of tire, generally be on the occasion of, namely outward-dipping.Toe-in angle refers to the angle between automobile longitudinal central plane and central plane of wheel and the intersection on ground.The setting of toe-in angle is the harmful effect bringing in order to eliminate camber angle the earliest.The harmful effect that positive camber angle is brought is that the tire of vehicle outwards runs, in order to guarantee that left and right wheels can advance toward the direction according to certain rule, retrains wheel with toe-in angle and runs inwards.

Present stage, owing to turning round the brake flange of the setting at beam two ends and install the central plane of end face and tire, be arranged in parallel, direct by draw toe-in angle and the camber angle of actual automobile to turning round the brake flange installation end planar survey arranging on beam in enterprise, the method adopting in enterprise is to be fixedly installed in frame turning round beam, utilize coelosphere to measure the three-dimensional coordinate that brake flange is installed end face, thereby draw toe-in angle and the camber angle of the brake flange installation end face of turning round beam two ends, yet, although adopt, precision is generally not high in this way, and the inefficiency of measuring, and the apparatus expensive of three-coordinate instrument, cost is higher.

Utility model content

The purpose of this utility model is to provide a kind of automobile to turn round the toe-in angle of beam and the measurement mechanism of camber angle improves the efficiency of measurement and the precision of measurement.

For realizing above object, the technical solution adopted in the utility model is: a kind of automobile is turned round the measurement mechanism of beam B toe-in angle and camber angle, comprise and be arranged on the detent mechanism of turning round beam B on base plate for clamping position, also comprise and be arranged on base plate and lean on the bearing that end face A is installed through brake flange, on bearing, be provided with 3 dial gauges, the 3rd dial gauge that comprises the top setting at 2 parallel with surface level and spaced apart the first dial gauges of sounding rod and the second dial gauge and the first dial gauge and the second dial gauge interval, the measuring junction of described 3 dial gauges and brake flange install end face A against.

Compared with prior art, there is following technique effect in the utility model: utilizes and be arranged on 3 dial gauges on bearing, during measurement the measuring junction of three dial gauges and brake flange install end face against, can draw first, second, the reading of the 3rd dial gauge is designated as respectively a, b, c, position relationship due to 3 dial gauges settings, can draw distance and the 3rd dial gauge and first of the first dial gauge and the second dial gauge, the vertical range of the second dial gauge is designated as respectively f, h, so just can utilize trigonometric function transformation relation to draw the toe-in angle α=Arcsin[(a-b that turns round beam B)/f], turn round camber angle β=Arcsin{[(a+b of beam B)/2-c]/h}, this kind of measuring method is simple, measure efficiency, precision is high.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the schematic diagram of measurement of the present utility model while turning round beam;

Fig. 3 is that in the utility model, plate body is installed the schematic diagram of end face assembling with the brake flange of turning round beam;

Fig. 4 is the I enlarged drawing of Fig. 1;

Fig. 5 is the structural representation of the utility model plate body.

Embodiment

Below in conjunction with Fig. 1 to Fig. 5, the utility model is described in further detail:

A kind of automobile is turned round the measurement mechanism of beam toe-in angle and camber angle, comprise and be arranged on the detent mechanism 20 of turning round beam on base plate 10 for clamping position, shown in Fig. 2 and Fig. 3, according to the structure of turning round beam, need to carry out clamping and positioning to turning round several key positions of beam B, comprise and being fixed turning round the end lining ring of beam trailing arm, turning round the bracketing at beam trailing arm and transverse arm crossover location place fixes, turn round the fixing of beam B trailing arm end side, the principle that detent mechanism 20 arranges is to turning round the location of beam B, to clamp and make the measurement that brake flange installation end face can be convenient to measuring mechanism to be as the criterion realizing,

What is more important, also comprise and be arranged on base plate 10 and lean on the bearing 40 that end face A is installed through brake flange, on bearing 40, be provided with 3 dial gauges, dial gauge has digital display and pointer two kinds, the 3rd dial gauge 33 that comprises the top setting at 2 parallel with surface level and spaced apart the first dial gauges 31 of sounding rod and the second dial gauge 32 and the first dial gauge 31 and the second dial gauge 32 intervals, described in when the toe-in angle of beam B and camber angle are turned round in measurement the measuring junction of 3 dial gauges and brake flange install end face A against, utilization is arranged on 3 dial gauges on bearing, during measurement the measuring junction of three dial gauges and brake flange install end face A against, can draw first, second, the reading of the 3rd dial gauge is designated as respectively a, b, c, position relationship due to 3 dial gauges settings, can draw distance and the 3rd dial gauge and first of the first dial gauge and the second dial gauge, the vertical range of the second dial gauge is designated as respectively f, h, can utilize like this trigonometric function transformation relation to draw the toe-in angle α=Arcsin[(a-b that turns round beam B)/f], turn round the camber angle β=Arcsin{[(a+b of beam)/2-c]/h}, the method that beam toe-in angle and camber angle are turned round in this kind of measurement is simple, equipment price is cheap, the precision of measuring, efficiency is high.

Further, as preferred version of the present utility model, shown in Fig. 2 and Fig. 3, due to brake flange install end face A be directly and brake flange be bolted connection, and brake flange is connected with wheel hub fastening, in fact the camber angle of automobile and toe-in angle draw by measuring the brake flange of wheel hub center position, the plate face that described brake flange is installed end face A is provided with plate body 50, the biside plate face of plate body 50 be arranged in parallel, the side plate face of plate body 50 and brake flange are installed end face A and are fastenedly connected, another lateral plates of the measuring junction of described 3 dial gauges and plate body 50 against, dial gauge is measured three value a that plate body 50 draws like this, b, the result that in fact c draws and directly measure the more measuring state during entrucking of closing to reality of the state that comes to the same thing and measure that brake flange installs end face A.

Further, for better realizing conception of the present utility model, shown in Fig. 5, described plate body 50 and 3 dial gauge measuring junctions mutually against side plate face on be provided with 3 boss 51,3 boss 51 are vertical arrange plate body 50 plate face and with the corresponding setting of measuring junction of 3 dial gauges, the plane at the end face place of 3 boss 51 is in a plane and the plane at place and the plate face of plate body 50 be arranged in parallel, so just can guarantee the accuracy of measurement result.

Finally, shown in Fig. 1, Fig. 2, Fig. 4, described bearing 40 comprises and is provided with the riser vertical with base plate 10 41, described 3 dial gauges are arranged on the plate face of riser 41, the measuring junction of 3 dial gauges stretches out riser 41, with brake flange, the close side plate face of end face A is installed, for more convenient measurement, improve the efficiency of measuring, the slide rail 11 arranging on the plate face that bearing 40 reclines with base plate 10 forms slidingtypes and coordinates, the pushing mechanism 60 that base plate 10 plate faces arrange promote dial gauge measuring junction on bearings 40 against or away from brake flange installation end face A.

Claims

1. an automobile is turned round the measurement mechanism of beam toe-in angle and camber angle, it is characterized in that: comprise and be arranged on the upper detent mechanism (20) of turning round beam B for clamping position of base plate (10), also comprise the bearing (40) that is arranged on base plate (10) and end face A is installed near brake flange, on bearing (40), be provided with 3 dial gauges, the 3rd dial gauge (33) that comprises the top setting at 2 parallel with surface level and spaced apart the first dial gauges of sounding rod (31) and the second dial gauge (32) and the first dial gauge (31) and the second dial gauge (32) interval, the measuring junction of described 3 dial gauges and brake flange install end face A against.

2. the measurement mechanism of turning round beam toe-in angle and camber angle according to claim 1, it is characterized in that: the plate face that described brake flange is installed end face A is provided with plate body (50), the biside plate face of plate body (50) be arranged in parallel, the side plate face of plate body (50) and brake flange are installed end face A and are fastenedly connected, another lateral plates of the measuring junction of described 3 dial gauges and plate body (50) against.

3. the measurement mechanism of turning round beam toe-in angle and camber angle according to claim 2, it is characterized in that: described plate body (50) and 3 dial gauge measuring junctions mutually against side plate face on be provided with 3 boss (51), 3 boss (51) are vertical arrange plate body (50) plate face and with the corresponding setting of measuring junction of 3 dial gauges, the plane at the end face place of 3 boss (51) is in a plane and the plane at place and the plate face of plate body (50) be arranged in parallel.

4. the measurement mechanism of turning round beam toe-in angle and camber angle according to claim 1, it is characterized in that: described bearing (40) comprises and is provided with the riser (41) vertical with base plate (10), described 3 dial gauges are arranged on the plate face of riser (41), the measuring junction of 3 dial gauges stretches out riser (41), with brake flange, the close side plate face of end face A is installed, the slide rail (11) arranging on the plate face that bearing (40) reclines with base plate (10) forms slidingtype and coordinates, the pushing mechanism (60) that base plate (10) plate face arranges promote dial gauge measuring junction on bearing (40) against or away from brake flange, end face A is installed.