CN100402976C - Motorcycle Steering Wheel Angle Test Bench - Google Patents

Abstract

The invention discloses a motorcycle steering wheel rotation angle test platform, which comprises a front wheel clamping mechanism and a rear wheel clamping mechanism installed on a frame base, and two semicircular front cover plates are arranged on the upper part of the front wheel clamping mechanism , the rotating plate is arranged between the two semicircular front cover plates, the front clamping foot part is located inside the rotating plate, and the front wheel clamping mechanism is equipped with a roll compensation mechanism, a translation compensation mechanism and a roll compensation locking mechanism. device and translation compensation locking device; a photoelectric rotary encoder for collecting and outputting the steering wheel angle signal and a signal displacement sensor for collecting and outputting the center plane deviation data of the front and rear wheels are also installed in the front wheel clamping mechanism. The invention adopts mechanical multi-dimensional compensation technology to realize the compensation of angle and displacement when realizing the steering wheel angle test. The photoelectric encoder outputs the angle signal, and the displacement sensor outputs the front and rear wheel center plane deviation data signal at the same time, which is easy to operate and high in work efficiency. And the measurement result is more accurate.

Description

Motorcycle Steering Wheel Angle Test Bench

technical field

The invention relates to a testing device for testing the performance of a motorcycle, in particular to a motorcycle steering wheel rotation angle testing platform.

Background technique

According to the market's requirements for the quality of motorcycle products, the national supervision and management department has put forward mandatory requirements for the safety of motorcycle products. After "GB 7258-2004" was formally proposed and implemented nationwide again, it has played a very positive role in strengthening the safety management of motor vehicle operation, improving the safety level of motor vehicle operation, and ensuring road traffic safety. At the same time, it is also an important technical basis for the mandatory inspection of new motor vehicles in my country, the factory inspection of new vehicles and the inspection of imported motor vehicles. Steering system and vehicle body measurement are mandatory safety performance inspection items in the country. The standard stipulates that "steering wheel turning angle to the left or right" and "front and rear wheel center plane deviation" are the national compulsory inspection content, but the test bench of this device is currently domestic There is no mature testing equipment yet.

Due to the existence of manufacturing errors in the design and production process and changes in the placement of the wheels during testing, the contact point of the front wheels with the ground plane will have a front-back and left-right displacement relative to the fixed body during the steering process. The value is not large, but if it cannot be compensated during the detection process, it will interfere with the steering of the front wheels and affect the detection accuracy; and because the front wheels have a roll angle during the steering process, and it changes with the change of the steering angle, if If it cannot be compensated during the detection process, it will directly interfere with the steering of the front wheels, or even fail to steer, which will affect the detection accuracy of the steering angle of the front wheels.

Contents of the invention

The purpose of the present invention is to provide a motorcycle steering wheel angle tester with simple operation, high work efficiency, compensation of angle and displacement, and more accurate measurement results.

In order to achieve the above object, the technical solution adopted in the present invention is: a motorcycle steering wheel angle test bench, comprising a front wheel clamping mechanism 1 and a rear wheel clamping mechanism 7 installed on the base of the frame 3, the front wheel clamping The upper part of the holding mechanism 1 is provided with a front panel 14, a front side panel 11 and two semicircular front cover plates 12, and a rotating plate 105 is arranged between the two semicircular front cover plates 12, and the front cover plate 12 and the rotating plate 105 It is fixedly connected and moves synchronously with the rotating plate 105. The front clamping foot part 101 is located inside the rotating plate 105. It is characterized in that: the front wheel clamping mechanism 1 is equipped with a roll compensation mechanism, a translation compensation mechanism and a roll compensation mechanism. The locking device 5 and the translation compensation locking device. The roll compensation mechanism is composed of a hinge mechanism, a slide plate 109 and a roll bottom plate 108. The hinge mechanism is installed between the two ends of the rotating plate 105 and the roll bottom plate 108. Four guide rod bearings 110 and two guide rod middle bearings 137 are installed, each guide rod middle bearing 137 is installed between the two guide rod bearings 110, and the sliding seat 128 is sleeved on the guide rod bearing 110. On the guide rod 136 between the support 137 in the guide rod, and fixedly connected with the slide plate 109; the translation compensation mechanism is composed of an upper plate 115, a middle plate 117, a lower plate 120, left and right ball guide rails 116 and front and rear ball guide rails 134. The plate 120 is installed above the bottom of the frame 3, the lower plate 120 is connected to the middle plate 117 through the front and rear ball guide rails 134 installed on the lower plate 120, and the middle plate 117 is connected to the upper plate 115 through the left and right ball guide rails 116 installed on the middle plate 117 , a base part 121 is installed in the middle of the upper plate 115, and a photoelectric rotary encoder 119 for collecting and outputting the steering wheel angle signal is installed on the base part 121. Installed in the axle seat 122, the top of the central axis 126 is fixedly connected with the middle part of the rotating plate 105; the signal displacement sensor 142 for collecting and outputting the center plane deviation data of the front and rear wheels is installed on the sensor base plate 143, and the sensor base plate 143 is installed on the frame 3 superior.

Compared with the prior art, the present invention has the following advantages: when testing the steering wheel angle, the test bench adopts mechanical multi-dimensional compensation technology to realize angle and displacement compensation, the photoelectric encoder outputs the angle signal, and the displacement sensor outputs the front and rear The wheel center plane deviation data signal is collected and processed by the programmable controller and liquid crystal display to display the measurement results. 1. Accuracy: During operation, the contact point between the front wheel and the ground is placed on the "angle meter", and the front wheel will produce changes in "rolling, front and rear, left and right displacement" when the actual corner movement is performed, and the entire measurement work is performed by mechanical movement. To ensure that the data sampling uses a high-precision "photoelectric encoder" sensor to output the rotation angle signal, and the measurement result of the obtained rotation angle signal is directly reflected on the liquid crystal display, making the measurement result more accurate. 2. Specifications: From the operation point of view, this structure meets the technical requirements of the national standard "GB 7258-2004" for the steering system and the body of the test equipment. The test method meets the requirements of relevant standards and regulations. The test data is accurate and repeatable. More fair and standardized; 3. Fast: simple operation, high work efficiency, strong practicability, suitable for batch testing, and convenient maintenance.

Description of drawings

Figure 1 is a top view of the present invention.

Fig. 2 is a left view of the present invention.

Fig. 3 is a view from the direction A of Fig. 1, which is a schematic structural diagram of the gas source control part of the present invention.

Fig. 4 is a side view of the front wheel clamping mechanism of the present invention.

Fig. 5 is a front view of the front wheel clamping mechanism of the present invention.

FIG. 6 is a cross-sectional view along line A-A of FIG. 4 .

Fig. 7 is a schematic structural view of the center plane deviation device of the front and rear wheels of the present invention.

Fig. 8 is a view from the direction A of Fig. 7 .

Fig. 9 is a side view of the rear wheel clamping mechanism of the present invention.

FIG. 10 is a cross-sectional view along line A-A of FIG. 9 .

Fig. 11 is a sectional view along line B-B of Fig. 9 .

FIG. 12 is a top view of the rear wheel clamping mechanism of the present invention with the rear cover 8 removed.

FIG. 13 is a D-D sectional view of FIG. 12 .

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the present invention includes a front wheel clamping mechanism 1 and a rear wheel clamping mechanism 7 installed on the base of the frame 3, and a roll compensation locking device 5 is installed in the front wheel clamping mechanism 1 , the top of the front wheel clamping mechanism 1 is provided with a front panel 14, a front side panel 11 and two semicircular front covers 12, a rotating plate 105 is located between the two semicircular front covers 12, and the front cover 12 It is fixedly connected with the rotating plate 105 and moves synchronously with the rotating plate 105. The front clip part 101 is located inside the rotating plate 105, the dial 13 is installed on the front panel 14 directly in front of the rotating plate 105, and the pointer 2 is installed on the rotating plate. 105; the rear wheel clamping mechanism 7 is provided with a rear panel 8, and the rear clamping foot part 701 is positioned at the top in the rear wheel clamping mechanism 7, and the wire box 6 is installed on the frame 3, and the rear panel 8 and the front side panel 11 A bridge panel 10 is provided at the connection, and an electric control box 9 is installed on the bridge panel 10 . A leveling instrument 4 is installed at the bottom of the frame 3 .

As shown in Figure 3, an air source processor 15 for filtering and controlling the size of the air source, an electromagnetic valve 17 for controlling the on-off of the air source communicated with the air source processor 15, and an electromagnetic valve connected to the air source processor 15 are installed on the frame 3. 17 connected to the throttle valve 16 for air source shunt adjustment.

As shown in Figures 4 and 5, a lower plate 120 is installed above the bottom of the frame 3, and the lower plate 120 is connected to the middle plate 117 through the front and rear ball guide rails 134 installed on the lower plate 120, and the middle plate 117 is installed on the middle plate. The left and right ball guide rails 116 on the 117 are connected with the upper plate 115, the end of the upper plate 115 is equipped with a support plate 124, and the bottom part of the upper plate 115 is equipped with a base part 121, which is used to collect the photoelectric rotary encoder 119 of the steering wheel angle signal of the motorcycle Installed on the base part 121, the rotating shaft of the photoelectric rotary encoder 119 is installed on the bottom of the central shaft 126, and the lower end of the central shaft 126 is installed in the shaft seat 122 through the deep groove ball bearing 118, and the shaft seat 122 is fixed above the middle part of the upper plate 115, and the shaft seat The end cover 114 is installed on the shaft seat 122, the middle and lower part of the central axis 126 is equipped with a reset disk 123, the reset disk limit plate 125 is installed on the upper plate 115, the top of the central axis 126 is fixedly connected with the middle part of the rotating plate 105, and the two rotating plates 105 A hinge mechanism is installed between the end and the tilting bottom plate 108, and the hinge mechanism is composed of a rotating plate support 102, a fulcrum 103, a screw 104, a joint bolt 106 and a joint 107, and the rotating plate support 102 is fixed to the rotating plate 105. connection, the upper end of the joint bolt 106 is rotationally connected with the rotating plate support 102 through the support shaft 103, the supporting shaft 103 is fixedly installed in the rotating plate support 102 through the support shaft end cover 130 and the screw 104, and the lower end of the joint bolt 106 is fixedly connected with the joint 107 , the joint 107 is fixedly connected to the tilting bottom plate 108 through a hex bolt 129 . As shown in Figure 4, the rack 112 is fixed on the lower part of the slide plate 109, and the rack guide rail part 111 is installed on the roll base plate 108 to limit the position of the rack 112, and the gear 113 is installed on the wheel frame 127 through the deep groove ball bearing 118. Above, the wheel frame 127 is installed on the roll base plate 108, and the rack 112 is meshed with the gear 113. As shown in Figure 4 and Figure 6, four guide rod supports 110 and two guide rod middle supports 137 are installed on the roll base plate 108, and each guide rod middle support 137 is installed on two guide rod supports 110 Between them, the sliding seat 128 is sleeved on the guide rod 136 between the guide rod support 110 and the guide rod middle support 137 , and is fixedly connected with the bottom of the end of the slide plate 109 . As shown in FIG. 5 , the front wheel pinch part 101 is installed above the slide plate 109 , the cylinder 133 is mounted on the end of the roll floor 108 through the cylinder bracket 135 , and the piston rod 132 is fixedly connected with the slide plate 109 through the connecting seat 131 .

The hinge mechanism, the slide plate 109 and the roll base plate 108 form the roll compensation mechanism of the present invention; the upper plate 115, the middle plate 117, the lower plate 120, the left and right ball guides 116 and the front and rear ball guides 134 form the translation compensation mechanism of the present invention.

As shown in Figure 7, the translation compensation locking device includes a centering shaft 139 for zero calibration and locking the translation compensation mechanism and a reference seat 140 matched with the centering shaft 139, and the centering shaft 139 is sleeved on the machine In the support seat 138 on the seat 3 , one end of the centering shaft 139 is fixedly connected with the piston rod 132 of the cylinder 133 , and the reference seat 140 is installed on the support plate 124 of the upper plate 115 .

As shown in FIG. 8 , one end of the upper plate 115 is connected to the displacement rod of the displacement sensor 142 through the connecting plate 141 , the displacement sensor 142 is installed on the sensor base plate 143 , and the sensor base plate 143 is installed on the frame 3 .

As shown in Figures 9 to 11, the rear wheel clamping mechanism 7 includes a rear base 703 fixed on the frame 3, and the rear base 703 is equipped with a rear rack guide rail component 704, a fixed seat 705 and a rear gear support 713, the rear gear 711 is installed on the rear gear support 713 through the rear end cover 710, the bearing 709 and the vertical shaft 712, the rear gear 711 is engaged with the rear rack 716 installed on the rear slide plate 702, and the rear rack guide rail part 704 is used for The position of the rear rack 716 is limited, the top of the rear slide plate 702 is fixedly connected with the rear wheel clip foot part 701, the rear slide plate 702 is installed on the rear slide seat 708, one end of the rear guide rod 706 is installed in the fixed seat 705, and the rear slide seat 708 passes through The sliding sleeve 707 is sleeved on the rear guide rod 706 . As shown in Figure 12 and Figure 13, the cylinder 714 of the rear wheel clamping mechanism is installed on the rear base 703 by the cylinder bracket 715 of the rear wheel clamping mechanism, and the cylinder 714 piston rod of the rear wheel clamping mechanism passes through the piston rod connecting seat 717 Connect with the rear slide plate 702.

The working principle of the present invention: 1. When it is necessary to test the steering wheel angle of the motorcycle, the equipment needs to be in the zero-setting state, firstly lock the roll compensation locking device and the translation compensation locking device, and then place the front wheel of the motorcycle on the In the clamping foot part of the clamping mechanism of the rotating plate measurement reference point test bench, the slide plate 109 in the front wheel clamping mechanism 1 is subjected to the action of the cylinder 133 to clamp the front wheel of the motorcycle and fix it, while the rear wheel clamping mechanism 7 The rear slide plate 702 in the middle is subjected to the effect of the rear cylinder 714, and the rear wheel of the clamping motorcycle is fixed.

2. Open the roll compensation locking device 5 and the translation compensation locking device, manually turn the steering handle of the motorcycle, so that the front wheel clamping foot part 101 clamping the front wheel of the motorcycle starts to turn, and firstly fix it on the roll base plate 108 The front wheel pinch part 101, with the change of the front wheel steering angle and roll angle, makes the hinge mechanism at both ends of the roll bottom plate 108 be transmitted to the turn plate 105 to start the roll compensation movement, and the turn plate 105 is fixedly installed on the center shaft 126 top, so the rotating plate 105 drives the central shaft 126 to rotate axially. Simultaneously, the bottom of the central axis 126 is connected with the central point of the upper plate 115 middle part by the bearing, and the ball guide rail between the upper plate 115, the middle plate 117, and the lower plate 120 starts to do translation compensation movement with the change of the front wheel steering angle. When the front wheel rotates to the left or right limit of the motorcycle, the photoelectric encoder 119 installed under the middle part of the upper plate 115 and connected to the bottom of the central shaft 126 outputs a signal through the photoelectric encoder 119, and the display screen reads the actual measured value. The maximum value of the steering wheel angle of the motorcycle measured. After the measurement is finished, when the front wheel of the motorcycle turns back to its original position, the reset plate 123 of the limit return mechanism returns to its original state. At this time, lock the roll compensation mechanism and the translation compensation mechanism again to make the equipment return to zero again, and the motorcycle to be tested can get off the test platform.

3. When it is necessary to test the center plane deviation of the front and rear wheels of the motorcycle, open the translation compensation locking device, close the roll compensation locking device 5, and the vehicle will return to its natural state under the action of rigidity, and turn left and backward or right and backward offset. Through the left and right ball guide rails 116 and the front and rear ball guide rails 134, the upper plate 115 drives the middle plate 117 to perform a translational movement, and the displacement sensor 142, which is fixed on the frame 3 and connected to one end of the upper plate 115, outputs a signal, and the display screen reads the front and rear wheels Center plane deviation value. After the test is completed, close the translation compensation locking device, make the equipment return to zero again, and the motorcycle to be tested can get off the test platform.

Basic parameters and main performance indicators of the motorcycle steering wheel angle test bench of the present invention:

1. Steering wheel angle test

Measuring range: left and right 55°

Measurement resolution: 0.1°

Measurement accuracy: ±0.3°.

2. Center plane deviation test of front and rear wheels

Measuring range: left and right 15mm

Measurement resolution: 0.1mm

Measurement accuracy: ±0.3mm.

Claims (4)

1. motorcycle steering wheel angle testing platform, comprise the front-wheel clamping device (1) and the trailing wheel clamping device (7) that are installed on frame (3) base, front-wheel clamping device (1) top is provided with front panel (14), front panel (11) and two semicircle front shrouds (12), flap (105) is located between two semicircle front shrouds (12), front shroud (12) is fixedlyed connected with flap (105) and is synchronized with the movement with flap (105), front clamping foot parts (101) are positioned at flap (105) interior location, it is characterized in that: inclination compensation mechanism and translation compensation mechanism and inclination compensation locking apparatus (5) and translation compensation locking apparatus are installed in the described front-wheel clamping device (1), the inclination compensation mechanism is by linkage, slide plate (109) and inclination base plate (108) are formed, linkage is installed between flap (105) two ends and the inclination base plate (108), bearing (137) in four guide bar receivers (110) and two guide rods is installed on the inclination base plate (108), bearing in each guide rod (137) is installed between two guide bar receivers (110), slide (128) is enclosed within on the guide rod (136) that is arranged between guide bar receiver (110) and the guide rod bearing (137), and fixedlys connected with below, slide plate (109) end; The translation compensation mechanism is by upper plate (115), middle plate (117), lower plate (120), left and right sides spherical guide (116) and front and back spherical guide (134) are formed, lower plate (120) is installed in top, frame (3) bottom, lower plate (120) is connected with middle plate (117) by the front and back spherical guide (134) that is installed on the lower plate (120), middle plate (117) is connected with upper plate (115) by the left and right sides spherical guide (116) that is installed on the middle plate (117), upper plate (115) middle part is equipped with base member (121), the optical rotary encoder (119) that is used to gather and export the steering wheel angle signal is installed in base member (121), optical rotary encoder (119) rotating shaft is installed in axis (126) bottom, axis (126) lower end is installed in the axle bed (122), fixedlys connected with flap (105) middle part in axis (126) top; The displacement transducer (142) that is used to gather and export front and back wheel central plane deviation data signal is installed in sensor base plate (143), sensor base plate (143) is installed on the frame (3), and the displacement bar of displacement transducer (142) is connected with upper plate (115) one ends by yoke plate (141).

2. motorcycle steering wheel angle testing platform according to claim 1, it is characterized in that: described linkage is by flap bearing (102), fulcrum (103), screw (104), track bolt (106) and joint (107) are formed, flap bearing (102) is fixedlyed connected with flap (105), track bolt (106) upper end is rotationally connected by fulcrum (103) and flap bearing (102), fulcrum (103) is fixedly mounted in the flap bearing (102) by a hubcap (130) and screw (104), fixedly connected with joint (107) in track bolt (106) lower end, joint (107) is fixedlyed connected with inclination base plate (108) by hex bolts (129).

3. motorcycle steering wheel angle testing platform according to claim 1 and 2 is characterized in that: be equipped with on the described frame (3) the source of the gas processor (15) that is used to filter and control the source of the gas size, the solenoid valve that is used to control the source of the gas break-make (17) that is connected with source of the gas processor (15) and be connected with solenoid valve (17) be used for the throttling valve (16) that source of the gas is regulated along separate routes.

4. motorcycle steering wheel angle testing platform according to claim 1, it is characterized in that: described translation compensation locking apparatus comprise be used for school zero, locking translation compensation mechanism to axis (139) and with the reference seat (140) that axis (139) is cooperated, axis (139) is enclosed within the supporting seat (138) that is fixed on the support (3), end to axis (139) is fixedlyed connected with the piston rod (132) of cylinder (133), and reference seat (140) is installed on the upper plate (115).

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