JPH02176536A - Device with pit cover for chassis dynamometer - Google Patents

Abstract

PURPOSE:To combine wheel bases easily and safely in a short time by automatically sliding pit covers in accordance with the movement of a self-traveling mobile stand. CONSTITUTION:When drums 5 are desired to move to the center side, the self- traveling mobile trucks 3 are moved in the direction of the arrow. Then, slide covers 10 which are fixed to outside pit cover supports 9 constituting integrally with the mobile trucks 3 and laminated on side pit covers 11 fixed to the pit 1, are made to move while sliding on the covers 11 together with the mobile trucks 3. Also the slide covers 13, 14 at the upper and middle layers, which are pin-connected to inside pit cover supports 12 constituting integrally with the mobile trucks 3 and laminated on center pit covers 11 fixed to the pit 1, are made to move while sliding on the cover 15 together with the mobile trucks 3. Next, the cover 13 runs on the cover 14 and is superposed thereon after the tip ends of the covers 13, 14 are closely adhered. The wheels can be easily combined accordingly as the covers are automatically made to slide in accordance with the movement of the mobile stand 3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a telescoping pit cover device for a chassis dynamometer that performs vehicle running tests indoors.

[Conventional technology]

This type of peat cover must be able to withstand the weight of the vehicle under test riding on it and must match the wheelbase of the vehicle under test. Therefore, it is necessary to adjust the length of the pit cover to match the wheel base of the drum. FIG. 5 is a side view showing a conventional pit cover device for a chassis dynamometer disclosed in, for example, Japanese Utility Model Publication No. 59-42677, and FIG. 6 is a sectional view taken along line Vl--Vl in FIG.

In the figure, (1) is a pit where the chassis dynamometer is installed, (2) is a rail laid in this pit (1), and (3) is a self-propelled mobile device that is loaded on the rail (2) and can be moved. The stand, (4) is a bearing stand fixed on the self-propelled moving stand (3), (5) is a drum rotatably supported by the bearing stand (4), (6) is the self-propelled moving stand (3) is a movable pit cover integrated with the pit cover, (7) is a fixed pit cover fixed to the pit (11), and (8) is a removable pit cover whose both ends are supported by the upper part of the pit (1).

Next, the operation will be explained. When moving the drum (5) closer to the center to match the wheel base of the automobile, first remove the removable bee cover (8) for the distance to be moved, and then move the self-propelled trolley (3) by the required amount.

Then, the movable pit cover (6) and fixed pit cover (
7), a gap corresponding to the amount of movement of the self-propelled trolley (3) is created. Next, a removable pit cover (8) that fits the gap.
Insert between the fully movable pit cover (6) and the fixed pit cover (7).

[Problem to be solved by the invention]

Since the conventional device is configured as described above, the removable pit cover (8) is installed every time the wheelbase of the car changes.
have to be attached and detached manually, resulting in time loss during attachment and detachment, deterioration of the working environment due to the transportation of heavy IT, and objects falling through the gap between the removable pit covers (8) due to differences in wheel bases. , safety issues were occurring.

This invention was made to solve the above-mentioned problems, and it has a chassis that can automatically adjust the length of the pit cover without human intervention, and can be operated safely and quickly without any gaps. The purpose is to obtain a pit cover device for a dynamometer.

[Means to solve the problem]

In the pit cover device for a chassis dynamometer according to the present invention, the cross section in the sliding direction has a continuous T-shape on the sliding side and a continuous inverted T-shape on the fixed side, while the vicinity of the drum on the sliding side is on a self-propelled movable platform. They are connected and the opposite side is superimposed on the fixed side fixed in the pit.

[For production]

In the chassis dynamometer pit cover device of this invention, the sliding side cover automatically slides on the fixed side cover as the self-propelled movable platform moves, so that the pit cover length can be adjusted to match the wheelbase of the automobile. Automatically set.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a side view showing the pit cover device of the chassis dynamometer, Figure 2 is a sectional view taken along the line 1l-TI in Figure 1,
FIG. 3 is a state diagram when moving in the direction of the arrow, and FIG. 4 is a sectional view taken along the line rV-I'/ in FIG. 3.

In Figure 1, (1) is a pit where a chassis dynamometer is installed, (2) is a rail laid in this pit (1), and (3) is a movable motor vehicle loaded on the rail (2). (4) is a bearing stand fixed on the self-propelled mobile table (3), (5) is a drum rotatably supported by the bearing stand (4), and (9) is a self-propelled mobile table. The outer pit cover support is integrated with the type mobile platform (3), Oo is the slide cover fixed on it, αυ is the side pit cover fixed to the foot (1), and (2) is the self-propelled mobile platform ( 3) The inner pit cover support of the carcass, α-shaped upper layer sliding cover with a pin bonded thereon, 0(0) with the corrugated middle layer sliding cover bonded with the inner pit cover support (2), The fence is an inverted T-shaped central pit cover fixed to the pit (1).

Next, the operation will be explained. When moving the drum (5) closer to the center to match the wheelbase of the car,
When the self-propelled mobile platform (3) is moved in the direction of the arrow shown in Fig. 1, it is fixed to the outer pit cover support (9) which is integrated with the self-propelled mobile platform (3), and the pit +1
The slide cover α, which is superimposed on the side pit cover αυ fixed to 1 as shown in Fig. 2, is a self-propelled moving platform (
3), slide and move on the side pit cover αυ in the direction of the arrow shown in FIG. Also, self-propelled mobile platform (3)
The upper slide cover Qm and the middle slide cover α (also mounted on a movable platform) are stacked on top of the central pit cover α fixed to the pit (11). (3) in the direction of the arrow shown in Figure 1, and then slide over the center and the top of the foot cover α, and after the tip of the upper slide cover 03 and the tip of the middle slide cover (2) come into close contact, the state is shown in Figure 3. As shown, the upper slide cover 01 rides on the middle slide cover (141) and is stacked on the base 4 as shown in FIG.

〔Effect of the invention〕

As described above, according to the present invention, the pit cover automatically slides as the self-propelled mobile platform moves, so the pit cover does not have to be attached or detached manually when moving the drum to match the wheel base of various automobiles. There is no need to do so, wheel base alignment can be easily and safely carried out in a short time, and there is also the effect that there is no gap on the pit cover and there is no danger of objects falling.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a pit cover device for a chassis dynamometer according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a direction in the direction of the arrow shown in Fig. 1. Figure 4 is the state diagram when the TV moves to the TV-TV in Figure 3.
5 is a side view showing a conventional pit cover device for a chassis dynamometer, and FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. In the figure, (1) is a pit, (3) is a self-propelled mobile platform,
(5) is a drum, (6) is a movable pit cover, (katana is a fixed pit cover, α-sho is a slide cover, 0υ is a side pit cover, 01 is an upper slide cover, a-jun is a middle-layer slide cover, α9 is a center pit It is a cover. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] A chassis dynamometer in which one or both drums supported on a self-propelled moving platform in the pit is movable in accordance with the wheel base of various vehicles, and has a pit cover that can slide in front and behind the drum, The cross section in the sliding direction is a continuous T-shape on the slide side and a continuous inverted T-shape on the fixed side, while the vicinity of the drum on the slide side is connected to the self-propelled movable platform, and the opposite side is fixed in the pit. A pit cover device for a chassis dynamometer, characterized in that it is overlaid on the fixed side.