This standard specifies the test method for the vision of the driver of construction machinery. This standard applies to the driver's vision test of construction machinery equipped with a driver's seat. This standard does not apply to the driver's vision test during the operation of the working device. JB/T 7160-1993 Test method for the vision of the driver of construction machinery JB/T7160-1993 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T7160-93
Construction Machinery
Test Method for Driver's Vision
Published on November 21, 1993
Ministry of Machinery Industry of the People's Republic of China
Implementation on March 1, 1994
Machinery Industry Standard of the People's Republic of China
Construction Machinery
Test Method for Driver's Vision
This standard is equivalent to the international standard ISO5006/1-1991 "Earth-moving Machinery - Specifications for Drivers - Subject Content and Scope of Application
This standard specifies the test method for the driver's vision of construction machinery, JB/T 7160-93
Part 1: Test Method"
This standard is applicable to the driver's vision test of construction machinery equipped with a driver's seat. This standard is not applicable to the driver's vision test during the operation of the working device.
2 Reference standards
Physical dimensions of earth-moving machinery drivers and their minimum activity space GB8420
GB8591
3 Terminology
Earth-moving machinery
3.1 Filament centre position
Driver seat marking point
The filament centre position is 660 mm upward and 20 mm forward of the driver seat marking point (SIP) specified in GB8591. This point conforms to the eye position of the 50th percentile male driver of engineering machinery specified in GB8420. The adjustment range of the adjustable seat is applicable to drivers from the 5th to the 95th percentile (see Figure 1). Center point of filament
After breastfeeding
In front of the aircraft
Approved by the Ministry of Machinery Industry on November 21, 1993
Layout of test equipment
Implemented on March 1, 1994
3.2 Visibility test diagram
JB/T7160-93
The visibility test diagram is a circle with a radius of 12m on the horizontal plane. The center is the projection of the center point of the filament on the ground plane. Or according to the provisions of the product standard,
3.3 Forward viewing range
In front of the machine. The sector determined by the 9.5m long chord on the visibility test plane is the forward viewing range. The chord is perpendicular to the longitudinal plane passing through the center point of the filament and is bisected by the longitudinal plane (see Figure 2). 3.+ Side front viewing range
Outside the forward viewing range, the sector surrounded by the transverse plane passing through the center point of the filament and the visibility test plane in front of the machine is the side forward viewing range (see Figure 2).
3.5 Rear viewing range
In the rear of the machine, the sector determined by the two intersection planes of the longitudinal plane passing through the center point of the filament at 45° to the left and right on the visibility test plane is the rear viewing range (see Figure 2). 3.6 Side rear view range
On the visibility test circle behind the machine, the sector between the rear view range and the side front range is the rear view range (see Figure 2). Front view range
Side front range
Side view range
Side view range
Side view range
Side view range
Side view range
Side view range
Figure 2 Definition of visibility test range
3.7 Shadow effect
Shadows formed on the visibility test diagram when the light emitted by the two filaments is blocked by the components installed on the construction machinery or the components of the working device. For example, shadows may be caused by the rollover protection structure (ROPS), window and door frames, exhaust pipes, etc. The air pipe, hood and components of working devices such as buckets and booms are generated.
4 Test facilities
4.1 Light source
The light source is composed of two halogen lamps (or incandescent lamps) with vertical filaments. The fixture for installing the two lamps should make the height of the filament center point meet the height of the filament center point position specified in Article 3.1. The filament of each lamp should be able to move horizontally on both sides relative to the filament center point position. The moving distance is 32.5~202.5mm, and the two lamps should be able to rotate around the vertical axis of the filament center point position (see enclosure 1). 4.2 Test plane
The test plane is a solid soil plane or a paved plane, and its slope in all directions should not exceed 3%. 2
Configuration of machines and instruments during the test
Configure the machine according to the technical specifications of the manufacturer. JB/T·7160-93
All openable parts (such as doors and windows) on the machine should be closed. 5.23
The position of the working device of the machine shall comply with the provisions of Appendix A (Supplement). 5.3www.bzxz.net
The machine is placed on the test plane, and a visibility test diagram with a radius of 12m is drawn on the test plane. When testing 5.4
in accordance with the requirements of Article 6.4, the radius of the visibility test circle of the front sight range and the rear sight range shall be increased to 19m. The installation position of the two lamps shall make the distance between each filament and the center point of the filament specified in Article 3.1 equal. 5.5
6 Test method
During the test, the line between the filaments of the two lamps shall be horizontal and perpendicular to the line between the center point of the filament specified in Article 3.1 and the center of the component blocking the field of vision.
6.1 The filaments of the two lamps are respectively set at 32.5mm from the center point of the filaments specified in Article 3.1. The fixtures of the two lamps are rotated around the center point of the filaments for testing. The shadow formed on the visibility test circle is recorded according to the contents of Tables 1 to 4\. The width of the shadow is measured in chord length. Note: The test should be carried out in a dark environment so that the shadow can be seen directly on the visibility test circle, or a plane mirror is used on the test plane to display the light of the filaments to determine the shadow that appears on the visibility test circle. 6.2 When the shadow is within the front sight range and the side front sight range, the filaments of the two lamps are respectively set at 202.5mm from the center point of the filaments and the second test is carried out. Record the shadow formed on the visibility test circle according to the contents of Table 1 and Table 3. 6.3 When the shadow is within the side rear view range, set the filaments of the two lamps at 102.5mm from the center of the filaments and conduct the second test. Record the shadow formed on the visibility test circle according to the contents of Table 4. 6.4 When the shadow is within the front and rear view ranges, increase the radius of the visibility test circle to 19m and conduct the second test according to the requirements of Articles 6.4.1 and 6.4.2. Record the shadow formed on the visibility test circle according to the contents of Table 1 and Table 2. 6.4.1 When testing the shadow in the front view range, the distances between the filaments of the two lamps and the center of the filaments are 32.5mm and 202.5mm respectively. 6.4.2 When testing the shadow of the rear-view range, the distance between the filaments of the two lamps and the center point of the filaments is 32.5 mm. Table 1 Shadow record table for the front-view range
Visibility test diagram Diameter, m
Distance between two filaments: mm
Shadow forming components and shadow width
Table 2 Shadow record table for the rear-view range
Visibility test diameter m
|Distance between two filaments: mm
Shadow selection components and shadow solidity
Instructions for use:
1 According to the test report content in Chapter 6 of ISO5006/1-1991, this standard specifically stipulates the front view model, rear view range, side front view model and rear view range shadow record table,
JB/T7160-93
Side front view range Shadow record table
Radius of visibility test diagram, m
Height between two filaments: mm
Shadow-forming components and shadow filter
Shadow record table of side rearview range
Radius of visibility test circle,
Distance between two filaments: mm
Shadow-avoiding components and shadow width
Test report\
The test report should include the contents of Tables 1 to 4 after filling in the test data and the following items: a.
Manufacturer's name;
Machine model;
Machine weight or rated transport weight:
Factory number:
Type or mark of driver's cab (including ROPS structure); Working equipment installed on the machine:
Any other conditions that affect shadow measurement. 12
The test report may also use a graphic to represent the shadows on the visibility test screen. The distance between the shadows should be provided in the graphic. The recommended format of the test report is shown in Appendix B (reference). Adoption instructions:
1 According to the custom of our country's standards, in addition to the content of Chapter 7 of ISO5006/11991 determining the approximate calculation method for the separation of shadows, 405
JB/T716093
Appendix A
Machine configuration
(supplement)
Various engineering machines to be tested on the test plane specified in Article 4.2.Its configuration shall comply with the provisions of A1A10. Loaders are configured as shown in Figure A1. When the bucket is in the transport position, the height dimension HH is 300±50mm when the machine weight is ≤24000kg; when the machine weight is >24000kg, the height dimension HH is 400±50mm. Backhoe loaders are configured as shown in Figure A2, with a height dimension HH of 300±50mm. A2
Bulldozers are configured as shown in Figure A3, with a height dimension HH of 150±50mm. A4
Self-propelled scrapers are configured as shown in Figure A4, with the blade 150±50mm above the ground level. Excavators are configured as shown in Figure A5. The height dimension HH and the swing dimension RR shall be marked in the drawing required by Article 7.2 of this standard. Graders are configured as shown in Figure A6. The blades of bulldozers and graders are 150±50mm above the ground level. Dump trucks are equipped as shown in Figures A7 to A10. The baffle is 150 ± 50 mm above the ground level. A7.1
Rear-dump dump trucks are equipped as shown in Figure A7, and bottom-dump dump trucks are equipped as shown in Figure A8. A7.2
A7.3Side-dump dump trucks are equipped as shown in Figure A9. Articulated dump trucks are equipped as shown in Figure A10, and A7.43
A8Pipelayers are equipped as shown in Figure A11.
Road rollers are equipped as shown in Figure A12, and
Compactors are equipped as shown in Figure A13. The height dimension HH is 150 ± 50 mm. Figure A1
JB/T 7160-93
JB/T 7160-93
JB/T 7160--93
Figure A7
Figure A10
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