The automatic gearbox of vehicles machines
Affiliated technical field
The utility model relates to the automobile engineering field, refers in particular to the automatic gearbox of vehicles machines, and it is mainly used in the performance test of automatic gearbox of vehicles and the performance test test after the maintenance, to guarantee the power performance of automobile.
Background technology
In recent years, along with the auto industry progress of science and technology, especially the high speed development of computer nowadays technology, mechanical-electrical-hydraulic integration technology, the wheel box of automobile is developed into multiple patterns such as mechanical gear box and automatic gear-box by mechanical gear box, and the application of automatic gear-box more and more widely.Automatic gearbox of vehicles is the important component part of automobile chassis, and its performance directly influences the power performance of vehicle.The complex structure of automatic gear-box, its detection and maintenance job difficulty are bigger, and the present domestic independently checkout equipment that still do not possess adopts entrucking to detect more, and the big and poor stability of difficulty very easily pollutes environment.
Summary of the invention
The purpose of this utility model provides a kind of automatic gearbox of vehicles machines that can conveniently detect the automatic gearbox of vehicles performance of various arrangements.
The purpose of this utility model is achieved in that
It is provided with mounting platform, hold-down support, adjusting bearing, it is characterized in that by test specimen be after automatic gearbox passes through pressing plate, keyboard, step-up gear and mounting bracket links to each other, be fixed on the mounting platform through regulating support, the mounting bracket of force transducer and resistance generating device is installed on the mounting platform by driving shaft, handwheel.
The two ends of mounting platform are arranged with the resistance generating device of two cover band force transducers, can realize that both-end detects.
The upper-lower position of the adjusting support that adjusting links to each other with step-up gear can be determined the height and position of step-up gear, realizes the height centering of step-up gear and resistance generating device; Drive driving shaft by handwheel simultaneously, regulate the distance of resistance generating device and step-up gear, to realize the measurement of various capacity automatic gearbox of vehicles.The resistance generating device of band force transducer is according to operational order generation working resistance and measurement in good time.Control system may command variable-frequency motor rotating speed, charger by setting up with the various operating modes of simulating vehicle, and can show test data and printing by instrument.
Major advantage of the present utility model:
1. be applicable to the automatic gearbox of vehicles of various arrangements.As rear bridge driven, full-bridge drive, wheel box is horizontal, the vertical structural shape such as put of wheel box.
2. can detect automatic gear-box separately, help failure judgment, maintenance.
3. the aim of environmental protection is followed in design, and the gasoline engine with motor replacement automobile has reduced exhaust emission.
4. but the driving cycle of simulating vehicle, test data accurately and reliably.
5. employing Automatic Control, handiness.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure:
1 handwheel, 2 driving shafts, 3 force transducers
4,12 resistance generating devices, 5 mounting brackets, 6 automatic gearbox of vehicles
7 pressing plates, 8 keyboards, 9 step-up gears
10 mounting brackets, 11 frequency control motors, 12 casings
13 mounting platforms 14 are regulated support 15 hold-down supports
16 regulate bearing
Embodiment
With reference to the accompanying drawings structure of the present utility model and principle are described in detail below.
Formation of the present utility model as shown in Figure 1.Mounting platform 13, hold-down support 15, adjusting bearing 16 are the foundation of pick-up unit, are flat on ground, by guaranteeing mounting platform 13 levels.
By test specimen be automatic gearbox 6 by pressing plate 7, keyboard 8, step-up gear 9 and after mounting bracket 10 links to each other, be fixed on the mounting platform 13 through adjusting support 14.
The mounting bracket 5 of force transducer 3 and resistance generating device 4 is installed on the mounting platform 13 by driving shaft 2, handwheel 1.Regulate moving up and down of support 14, thereby can realize that mounting bracket 10 drives the centre-height of regulating automatic gearbox of vehicles 6 that moves up and down of step-up gear 9, the height and position centering of realizing step-up gear 9 and resistance generating device 4.
Rotate handwheel 1 driving shaft 2 is rotated, regulate the distance of resistance generating device 4 and step-up gear 9, realize the testing of the automatic gear-box of different size.
Fig. 1 has two resistance generating devices 4,12, can adopt the both-end inspection to detect 2 simultaneously according to the automatic gearbox form in test process.When adopting the both-end inspection, need to regulate locking after support 14 makes mounting bracket 10 half-twists.
Its course of work is:
Start frequency control motor, can determine by the input speed of test specimen according to regulated frequency control motor by the requirement of test specimen; Regulate the size of resistance generating device coil current, resistance generating device 4,12 produces effective resistance moment, and this moment of resistance is added in by on the output flange of test specimen, and the analog operation resistance takes place.
The principle of work of resistance generating device 4,12 is: electric current produces the magnetic flux perpendicular to the gap by magnetizing coil, forms magnetic field, and the magnetic force in magnetic field forms antitorque moment, forms the moment of resistance.
Testing crew is according to the model and the physical dimension of the automatic gear-box that is detected, adjust the position of this device, the fixed installation automatic gear-box, start variable-frequency motor and make its rotating speed reach the test speed of automatic gear-box by the control system of setting up, the various operating modes of the system controlled by computer charger simulating vehicle of control system, test is by the power performance of test specimen.Can show test data by instrument, printable in case of necessity output.The microcomputer of control system can be judged the failure condition of automatic transmission according to the data that store, and the localization of faults.