CN214251553U - Inertia simulation device of automobile drum test bed - Google Patents

Abstract

The utility model discloses an inertia simulation device of an automobile drum test bed, which comprises a frame, a connecting shaft, a first flywheel shaft and a second flywheel shaft; two ends of the connecting shaft, the first flywheel shaft and the second flywheel shaft are all mounted on the rack through bearings, and the first flywheel shaft and the second flywheel shaft are respectively mounted on two sides of the connecting shaft; one end of the connecting shaft extends out of the rack and is connected with a roller shaft of the automobile drum test bed through a coupler. The inertia simulation device of the automobile drum test bed of the utility model basically covers the service mass range from light vehicles to large vehicles, so that the detection data is close to the data of the real working condition; the test platform can be combined with a flywheel of an automobile rotary drum test bed to obtain more simulated equivalent inertia, so that the accuracy of vehicle mass simulation is greatly improved, and the accuracy of test data is further improved.

Description

Inertia simulation device of automobile drum test bed

Technical Field

The utility model belongs to the technical field of the automotive inspection technique and specifically relates to an inertia analogue means of car rotary drum test bench is related to.

Background

The automobile drum test bed is a bench type test device arranged in a pit and can detect multiple performances of an automobile. During detection, the automobile wheels are placed on the roller group on the rack, the rollers drive the wheels or the wheels drive the rollers to rotate, the road test of the automobile is replaced, and various sensors can be arranged on the test bed, so that various performances of the automobile can be detected.

At present, most automobile drum test beds adopt 1 group (4 drums) or 2 groups (2 multiplied by 4 drums) of drum structures, which respectively correspond to single-shaft detection and double-shaft detection of automobiles, when the automobiles run on the test beds, the resistance suffered by the automobiles is the rotation resistance of the test beds, the working condition difference between the automobiles and the running condition of the automobiles on roads is large, especially for different types of automobiles, the finishing quality of the automobiles is greatly different, the inertia difference of the automobiles is also large, the distortion of some detection data of the test beds is brought, especially for the indexes such as the acceleration performance and the sliding performance of the automobiles.

The most common drum test bed at home and abroad is 1 group of 4 drums, only single shafts can be used for one-by-one detection, left and right wheels of the same shaft are placed between a front drum and a rear drum, the wheels of the structure are well positioned, and the vehicle state is stable during the test. Because of the restriction of size, the diameter of the roller is small, the rotary inertia is small, the actual running working conditions of a large vehicle and a heavy vehicle cannot be reflected, when the acceleration and the sliding performance of the vehicle are tested, a solid flywheel is generally matched to increase the rotary inertia, but the rotary inertia cannot be matched with various vehicles. The rotary drum test bed with 1 flywheel can only correspond to a vehicle with a certain service quality, has poor adaptability, and can be generally used for vehicles with a certain model in an automobile manufacturer. The existing rotary drum test bed has small rotational inertia and can not simulate the running working conditions of various automobiles with different qualities.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention is directed to provide an inertia simulation apparatus for an automobile drum test bed, which substantially covers the mass range from light vehicles to large vehicles, so that the detected data is close to the data of the real working condition; the test platform can be combined with a flywheel of an automobile rotary drum test bed to obtain more simulated equivalent inertia, so that the accuracy of vehicle mass simulation is greatly improved, and the accuracy of test data is further improved.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an inertia simulation device of an automobile drum test bed comprises a frame, a connecting shaft, a first flywheel shaft and a second flywheel shaft; two ends of the connecting shaft, the first flywheel shaft and the second flywheel shaft are all mounted on the rack through bearings, and the first flywheel shaft and the second flywheel shaft are respectively mounted on two sides of the connecting shaft; one end of the connecting shaft extends out of the rack and is connected with a drum shaft of the automobile drum test bed through a coupler;

a first electromagnetic clutch and a first belt pulley are sequentially arranged on the connecting shaft inside the rack at the side close to the coupler, and a second belt pulley is arranged on the connecting shaft at the side far from the coupler; the first electromagnetic clutch controls the first belt pulley to be connected with or separated from the connecting shaft; a second electromagnetic clutch, a first flywheel, a second flywheel and a third electromagnetic clutch are sequentially arranged on the first flywheel shaft at the side close to the coupler, and a third belt pulley is arranged on the side far away from the coupler; the second electromagnetic clutch controls the first flywheel to be connected with or separated from the first flywheel shaft; the third electromagnetic clutch controls the second flywheel to be connected with or separated from the first flywheel shaft; a fourth belt pulley and a third flywheel are sequentially arranged on the second flywheel shaft close to the coupler; the second belt pulley and the third belt pulley are in transmission through a first belt; the first belt pulley and the fourth belt pulley are driven by the second belt.

Further, the first flywheel has an equivalent inertia of 1000kg, the second flywheel has an equivalent inertia of 2000kg, and the third flywheel has an equivalent inertia of 3000 kg.

The utility model has the advantages that:

the existing automobile drum test bed can be used for measuring the accuracy, the acceleration performance, the sliding performance, the chassis output power and the like of an automobile, is provided with a flywheel for simulating the mass of a light automobile, and can simulate the mass of a medium-sized and large-sized vehicle after being matched with an inertia simulation device, so that the detection data is close to the real data under the road working condition, and the performance test data is real. The utility model discloses inertia analogue means of car rotary drum test bench passes through the combination and the separation of control electromagnetic clutch, and the automatic control of being convenient for can select the combination of flywheel according to the motorcycle type that tests to match the quality of car, reach the operating mode that traveles on the true simulation motorway, thereby make test data science accurate.

The utility model discloses inertia analogue means of car rotary drum test bench mainly has three flywheels of group, and each flywheel is installed in epaxial through respective electromagnetic clutch, and each axle passes through the bearing to be installed in by shaped steel welded frame, and the axle that does not install the flywheel is the connecting axle, and its axle head passes through the shaft coupling and is connected with the cylinder hub of car rotary drum test bench, and the connecting axle is the input shaft of power, has the belt pulley on it, through belt drive with power transmission to the flywheel epaxial.

The utility model discloses inertia analogue means of car rotary drum test bench disposes 3 groups of flywheels of equivalent inertia 1000kg, 2000kg, 3000kg, and 6 kinds of equivalent inertias that 1000kg, 2000k, 3000kg, 4000kg, 5000kg, 6000kg can be obtained through different combinations to 3 groups of flywheels, have covered the full-scale mass range of light-duty car to large-scale car basically, make the data of detecting to be close to the data of true operating mode; the test platform can be combined with a flywheel of an automobile rotary drum test bed to obtain more simulated equivalent inertia, so that the accuracy of vehicle mass simulation is greatly improved, and the accuracy of test data is further improved. In addition, the inertia simulation device can be connected with various automobile drum test beds through a coupler, is simple in connection, can adapt to various devices, and is wide in adaptability.

Drawings

FIG. 1 is a top view of an inertia simulation apparatus of the automobile drum test bed of the present invention;

FIG. 2 is a left side view of the inertia simulation apparatus of the automobile drum test stand of the present invention;

figure 3 is the utility model discloses inertia analogue means and car drum test bench connection structure sketch map of car drum test bench.

Reference numerals: 1-a connecting shaft; 2-a coupler; 3-a frame; 4-a first flywheel shaft; 5-a second electromagnetic clutch; 6-a first flywheel; 7-a second flywheel; 8-a third electromagnetic clutch; 9-a third pulley; 10-a first belt; 11-a second pulley; 12-a second flywheel shaft; 13-a third flywheel; 14-a fourth pulley; 15-a second belt; 16-a first pulley; 17-a first electromagnetic clutch; 18-automotive drum test stand; 19-test stand has flywheel.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Example 1

An inertia simulation device of an automobile drum test bed comprises a frame 3, a connecting shaft 1, a first flywheel shaft 4 and a second flywheel shaft 12. Both ends of connecting axle 1, first flywheel axle 4 and second flywheel axle 12 all install in frame 3 through the bearing, and first flywheel axle 4 and second flywheel axle 12 are installed respectively in connecting axle 1 both sides. One end of the connecting shaft 1 extends out of the frame 3 and is connected with a roller shaft of the automobile roller test bed 18 through a shaft coupling 2.

A first electromagnetic clutch 17 and a first belt pulley 16 are sequentially arranged on the connecting shaft 1 inside the rack 3 close to the side of the coupler 2, and a second belt pulley 11 is arranged on the connecting shaft 1 far away from the side of the coupler 2. The first electromagnetic clutch 17 controls the first pulley 16 to be connected to or disconnected from the connecting shaft 1.

A second electromagnetic clutch 5, a first flywheel 6, a second flywheel 7 and a third electromagnetic clutch 8 are sequentially arranged on the first flywheel shaft 4 close to the coupler 2, and a third belt pulley 9 is arranged on the coupler 2 far away. The second electromagnetic clutch 5 controls the first flywheel 6 to be connected with or separated from the first flywheel shaft 4; the third electromagnetic clutch 8 controls the second flywheel 7 to be connected with or disconnected from the first flywheel shaft 4.

A fourth belt pulley 14 and a third flywheel 13 are sequentially arranged on the second flywheel shaft 12 close to the coupler 2. The second belt pulley 11 and the third belt pulley 9 are driven by a first belt 10. The first pulley 16 and the fourth pulley 14 are driven by a second belt 15.

The working principle is as follows: the connecting shaft 1 transmits the motion to the first flywheel shaft 4 through the second belt pulley 11, the first belt 10 and the third belt pulley 9; the second electromagnetic clutch 5 controls the first flywheel 6 to be connected with or separated from the first flywheel shaft 4; the third electromagnetic clutch 8 controls the second flywheel 7 to be connected with or separated from the first flywheel shaft 4, and the first flywheel 6 and the second flywheel 7 can be connected with the first flywheel shaft 4 independently or together so as to be indirectly connected with the connecting shaft 1.

The first electromagnetic clutch 17 controls the first belt pulley 16 to be connected with or separated from the connecting shaft 1, and when the connecting shaft 1 is connected with the connecting shaft, the first belt pulley 16, the second belt 15 and the fourth belt pulley 14 transmit motion to the second flywheel shaft 12 and drive the third flywheel 13 arranged on the second flywheel shaft 12.

Example 2

The present embodiment is different from embodiment 1 in that: the first flywheel 6 has an equivalent inertia of 1000kg, the second flywheel 7 has an equivalent inertia of 2000kg, and the third flywheel 13 has an equivalent inertia of 3000 kg.

When the first flywheel 6, the second flywheel 7 and the third flywheel 13 are independently connected, the provided simulated equivalent inertia is 1000kg, 2000kg and 3000kg respectively; when the first flywheel 6, the second flywheel 7 and the third flywheel 13 are combined, 4000kg (the first flywheel 6+ the third flywheel 13) and 5000kg (the second flywheel 7+ the third flywheel 13) of simulated equivalent inertia can be provided; the first flywheel 6, the second flywheel 7 and the third flywheel 13 are combined simultaneously, and the provided simulated equivalent inertia is 6000 kg. Substantially covering the range of service masses from light vehicles to large vehicles.

When the automobile drum test bed carries a 500kg equivalent inertia test bed with a flywheel 19, the electromagnetic clutch structure, the connecting shaft structure and the coupling structure are connected with the automobile drum test bed, and after the electromagnetic clutch structure, the connecting shaft structure and the coupling structure are connected with the inertia simulation device, 13 grades of equivalent inertia of 500kg, 1000kg, 1500kg, 2000kg, 2500kg, 3000kg, 3500kg, 4000kg, 4500kg, 5000kg, 5500kg, 6000kg and 6500kg can be provided, so that the accuracy of simulating the vehicle mass is greatly improved, and the accuracy of test data is further improved.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims (2)

1. The utility model provides an inertia analogue means of car rotary drum test bench which characterized in that: the flywheel device comprises a rack, a connecting shaft, a first flywheel shaft and a second flywheel shaft; two ends of the connecting shaft, the first flywheel shaft and the second flywheel shaft are all mounted on the rack through bearings, and the first flywheel shaft and the second flywheel shaft are respectively mounted on two sides of the connecting shaft; one end of the connecting shaft extends out of the rack and is connected with a drum shaft of the automobile drum test bed through a coupler;

a first electromagnetic clutch and a first belt pulley are sequentially arranged on the connecting shaft inside the rack at the side close to the coupler, and a second belt pulley is arranged on the connecting shaft at the side far from the coupler; the first electromagnetic clutch controls the first belt pulley to be connected with or separated from the connecting shaft; a second electromagnetic clutch, a first flywheel, a second flywheel and a third electromagnetic clutch are sequentially arranged on the first flywheel shaft at the side close to the coupler, and a third belt pulley is arranged on the side far away from the coupler; the second electromagnetic clutch controls the first flywheel to be connected with or separated from the first flywheel shaft; the third electromagnetic clutch controls the second flywheel to be connected with or separated from the first flywheel shaft; a fourth belt pulley and a third flywheel are sequentially arranged on the second flywheel shaft close to the coupler; the second belt pulley and the third belt pulley are in transmission through a first belt; the first belt pulley and the fourth belt pulley are driven by the second belt.

2. The inertia simulator of an automotive drum test stand according to claim 1, wherein: the equivalent inertia of the first flywheel is 1000kg, the equivalent inertia of the second flywheel is 2000kg, and the equivalent inertia of the third flywheel is 3000 kg.

Images