JPH03293536A - Vehicle setting apparatus for chassis dynamometer - Google Patents

Abstract

PURPOSE:To achieve an automatic setting of a vehicle accurately and quickly by a method wherein a vehicle setting arm is erected with a driver and a vehicle setting roller is pressed onto a tire so that an axis center of a vehicle tire aligns the axis center of a rotary drum on a vertical line. CONSTITUTION:A tire 2 is pressed with a driver 50 and with an axis center aligning, work of fixing a vehicle 1 is performed with a vehicle fixing member 5, which allows the fixing of the vehicle without deviation of the axis center. After the fixing, an setting arm 4b is returned with the device 50 and a setting roller 4a is housed into a stay section 8 to make operation ready. Then, when a vehicle to be tested enters a pit cover 7 and the tire 2 of the vehicle arrives on a rotary drum 3, the arm 4b is erected with the device 50 and the roller 4a is pressure onto the tire 2 to make an axis center of the tire 2 align the axis center of the rotary drum 3 on a vertical line. Thus, the operation of aligning axis centers by an operator is accomplished at a mechanical accuracy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a vehicle setting device for a chassis dynamometer that is capable of adjusting the position of tires of a vehicle under test.

(Prior Art) In the conventional chassis dynamometer, as shown in FIG.
It is fixed by a fixing member 5, and a vehicle push-up device 6 is set in preparation for problems such as a puncture. At this time, the axial center 2a of the tire 2 and the axial center 3a of the drum 3 need to be set coaxially.

To set up the vehicle, the driver usually gets the vehicle under test on board, stops the vehicle when it reaches the drum shaft center 3a, fixes the tires 2 by braking, and fixes the fixing device 4. It was fixed with member 5. Furthermore, during vehicle tests when the vehicle was cold, the vehicle was carried in manually by test personnel.

(Problem to be solved by the invention) As described above, the vehicle setting device in the conventional vehicle test is
Since this is done by the driver, it is difficult to set the tire shaft center 2a and the drum shaft center 3a on the same axis, and there is a possibility that the vehicle may move during the fixing work using the fixing members, making the fixing work difficult. There was an inconvenience. Furthermore, during vehicle tests when the vehicle is cold, the vehicle is carried in by the tester's hand, so it is more difficult to set the tire shaft center 2a and the drum shaft center 3a coaxially than before, and it takes a lot of time to set it up. Ta.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle setting device for a chassis dynamometer, which allows vehicle setting to be performed automatically, accurately, and quickly in a chassis dynamometer without any intervention by a tester.

[Structure of the invention]

(Means for Solving Problem 11) The vehicle set device for chassis-dynamometer of the present invention has the following features:
A chassis dynamometer for carrying out indoor tests on vehicles includes a rotating drum on which the tires of the vehicle are mounted, a vehicle pushing device for breaking contact between the rotating drum and the tires, and a device surrounding the rotating drum. A vehicle set arm with a vehicle set roller is attached to a bearing provided on the arm support base, and the vehicle set arm is rotated to store the vehicle set roller in the set roller retaining section at all times, and when the vehicle under test is placed. The present invention is characterized by the provision of a drive device that presses the vehicle setting roller against the tire to align the center of the vehicle tire shaft and the center of the rotary drum shaft on a vertical line.

(Function) In the present invention, the vehicle set roller is in the set roller retaining portion before the vehicle under test gets on the vehicle.

When the vehicle under test enters the pit cover and the vehicle tires are on top of the rotating drum, the drive device raises the vehicle setting arm and presses the vehicle setting rollers against the tires, aligning the center of the axis of the vehicle tires with the axis of the rotating drum. Align the center with the vertical line.

(Example) The present invention will be described below with reference to an example shown in FIGS. 1 and 2. In FIGS. 1 and 2, the same parts as in FIG. 3 are designated by the same reference numerals, and their explanation will be omitted. 1 and 2, the present invention is capable of aligning the drum shaft 3a and the tire shaft 2a coaxially and fixing the vehicle 1 without requiring the tester to touch the vehicle 1 under test. This is what I did.

First, in FIGS. 1 and 2, an arm support stand 60.60 is arranged in parallel at the bottom of the pit cover 7, and a vehicle set roller 4 is placed on the upper part of this arm support stand 60.60.
a and vehicle set arm 4b are assembled. The vehicle setting roller 4a and the vehicle setting arm 4b are rotated by a drive device 50 provided on the side of the arm support base 60. Normally, the set roller 4a is housed in a set roller retainer 8 provided in a part of the pit cover 7, and is raised to the position shown in FIG. 1 by the action of a drive device 50.

As shown in FIG. 4, when getting into the vehicle, the tires 2 are
It falls once into the recess between the pit cover 7 and the drum 3 and stops. From this state, as shown in FIGS. 1 and 2, the vehicle setting arm 4b is lifted by the drive device 50, and the vehicle setting roller 4a at the tip of the arm moves the tire 2, thereby aligning the tire shaft 2a with the drive shaft 3a.

In the vehicle setting device for the chassis/r namometer of the present invention configured as described above, the vehicle setting roller 4a is normally stored in the setting roller retaining portion 8, and the roller 4
Since point a is flush with the top of the pit, it is possible to board the vehicle without any resistance. Bearing 6 that supports set arm 4b
1 is placed on the arm support stand 60°60a.

The vehicle is fixed by the vehicle fixing device 4 while the drive device 50 presses the tires 2 to keep the axes aligned.
．． By using the vehicle fixing member 5, the axis can be fixed without shifting. After fixing, set arm 4 is moved by drive device 50.
When b is returned, the set roller 4a is stored in the retaining portion 8 and becomes operable.

As described above, according to the present invention, vehicle setting work can be carried out by one person by multiple workers, including a driver who operates the vehicle, a worker who moves the vehicle, and a worker who confirms the axis position. Since the driver can mechanically align the axis with high precision and the vehicle can be held stationary during the installation work of the fixing device, it can greatly contribute to shortening the work time.

Next, FIGS. 5 and 6 show other embodiments of the present invention.

In both figures, the set roller 4a is connected to a drive motor 53 via a chain 52 set on both sides of the drum 3.
moves on the top surface of the pit and moves the tire 2 in the direction of the center axis of the drum 3.

〔Effect of the invention〕

As described above, according to the present invention, one person can set up the vehicle, and the driver can mechanically perform the axis alignment operation with high precision.

[Brief explanation of drawings]

1 and 2 are front and side views showing a vehicle setting device for a chassis-dynamometer according to the present invention, FIG. 3 is an overall view showing a general vehicle setting device, and FIG. 4 is a tire and drum of a vehicle. 5 and 6 are front and side views showing other embodiments of the present invention. 1... Vehicle 2a... Tire shaft center 3a... Drum shaft center 5... Fixing member 7... Pit cover 9... Base 61... Bearing 4a... Vehicle setting roller 52. ...Vehicle set chain 60a...Drum bearing box 2...Tire 3...Drum 4...Vehicle fixing device 6...Vehicle push-up device 8...Set roller retainer 60...Arm support Base 50... Drive device 4b... Vehicle set arm 53... Drive motor

Claims (1)

[Claims] A chassis dynamometer for indoor testing of vehicles, comprising a rotating drum on which tires of the vehicle are mounted, a vehicle pushing device for breaking contact between the rotating drum and the tires, and further surrounding the rotating drum. A vehicle set arm having a vehicle set roller is attached to a bearing provided on the arm support base, and the vehicle set arm is rotated to store the vehicle set roller in the set roller retaining section at all times, so that when the vehicle under test is placed, the vehicle set arm is rotated. A vehicle setting device for a chassis dynamometer, comprising a drive device that presses a set roller against a tire to align the center of a vehicle tire shaft and the center of a rotary drum shaft on a vertical line.