JPS5930437Y2 - Floating flywheel attachment/detachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an attachment/detachment device for a floating flywheel used in a chassis dynamometer.

This type of attachment/detachment device is not a manual type for reasons such as streamlining measurement work or eliminating measurement errors, but is instead an automatic type so that remote and automatic control is possible.

FIGS. 1 and 2 show an attachment/detachment device for a conventional rolling bearing type (fixed type) flywheel.

1 is a base, 2 is a side support stand, 3 is a rotating shaft pivotally supported on this side support stand 2 by a bearing 4, and 5 is an intermediate support stand 6, respectively.
A plurality of flywheels are pivotally supported by bearings 7, and are fitted into the rotating shaft 3 with a predetermined clearance, and one of the inner diameter edges of each flywheel 5 protrudes in the axial direction,
A spline 5a is formed on the protrusion.

Reference numeral 8 denotes a spline fitting having a spline 8a fitted to the rotating shaft 3, and the spline 5 of each flywheel 5
It is placed close to a.

Reference numeral 9 denotes a spline boss fitted to the spline fittings 8 and the splines 8at5a of each flywheel 5, and these three members constitute a clutch.

Reference numeral 10 denotes an operating branch rod whose one end is rotatably connected to a fixed frame 11, and a roller pin 1 is connected to the spline boss 9.
2, and an operation handle 10a at the tip is connected to a cylinder 14 disposed on a table 13.

Click here to attach or detach the flywheel 5 from the cylinder 14.
When the operating branch 10 is moved in the axial direction so that the spline 9 is fitted into both the spline 5a of the flywheel 5 and the spline 8a of the spline fitting 8, the spline boss 9 is connected to the flywheel 5. If it is separated from the spline 5a, it will be in the disengaged state.

In addition, in the attached state, the spline boss 9 is attached to the roller pin 1.
2. Rotate while sliding.

The above is the configuration and operation of a conventional so-called fixed flywheel attachment/detachment device, but this attachment/detachment device cannot be applied to a floating flywheel in which the entire flywheel is levitated by a hydraulic pad.

In the floating type, the fixed frame that supports the operating branch is floating integrally with the flywheel, so in the conventional attaching/detaching device, the swinging resistance becomes large and measurement accuracy deteriorates.

In view of the above points, the present invention aims to provide a unique attachment/detachment device suitable for a floating flywheel.

FIGS. 3 to 7 each show an embodiment of the present invention.

3 and 4 are a partially cutaway plan view and a partially cutaway side view of the same. In the figures, 16 is a bed, 1γ is a pedestal, and 18 is a pedestal 17 as shown in FIG. A plurality of flywheels 5 are pivotally supported within this frame 18 in the same manner as a conventional rolling bearing type flywheel (see FIG. 1).

Further, the clutch mechanism has a similar configuration, and an operating branch 10' connected to the spline boss 9 via a roller pin 12 is rotatably connected to the inner wall of the frame 18 via a mounting bracket 21 by a pin 21a. has been done.

The old operating handle 10a' passes through the frame 18 without touching it, passes through a guide portion 22 fixed to the outer wall of the frame 18, and reaches an operating device 24 fixed to a support base 23.

Note that 19a is an oil passage and 19b is a pin.

Here, the guide portion 22 is connected to the mounting frame 2 as shown in FIG.
An operation handle 10a' is slidably inserted into the mounting frame 25, and a guide stopper 27 is slidably fixed to the left and right side walls of the mounting frame 25 via a suppression spring 26.
Leaf springs 28a and 28b are attached to the inside of the earthen wall with a predetermined distance between them.

6 and 7 are top views showing the operating device 24,
Although it is a side view, as shown in FIGS. 3 and 4, the support stand 2
A table 29 is fixed on the table 29, and a slide base 30 connected to the cylinder 14 is disposed on the table 29 via a slide seat 31.

A pair of slide protrusions 30a are provided on the slide base 30 to face each other, and an operating knob 10a' passes through the gap between the slide protrusions 30a.

In addition, 32 is a pair of stoppers arranged on the table 29 on the side of the slide seat 31 via a pressing spring 32a, and 33
are a pair of limit switches arranged on the side surface of the table 29 below the slide table 30.

Next, the operation will be explained.

The slide angle 30 is set by the cylinder 14 on the flywheel 5.
When it reciprocates in the axial direction, the slide protrusion 30a pushes the operating knob 10a', and the operating branch 10' moves in an arc around its support, and as a result, the operating branch 10' The spline boss 9 is moved in the axial direction via the fixed roller pin 12.

The operating knob 10a' is the guide stopper 2 of the guide section 22.
7 and its upper end surface is pressed by the leaf spring 28a or 28b, and then it is moved by the slide table 30.

On the other hand, at the same time as that state is reached, the limit switch 3
3 is activated to stop driving the cylinder 14.

Then, the slide base 30 is returned by a predetermined distance by the stopper 32, and the operating handle 10a', which has already been fixed in position, is prevented from coming into contact with any of the slide protrusions 30a.

Through the above steps, the flywheel 5 can be placed in the attached or detached condition.

Here, the operation handle 10a' is attached to the leaf spring 28a or 28
The reason why the clutch is fixed by b is because otherwise, the operating branch 10' etc. will move due to vibration, and there is a risk that the clutch may be attached or detached during driving.

The reason why the small operation handle 10a' is separated from the slide table 30 is because the floating frame 18 and the swinging side of the operation knob 10a', the slide table 30, and the table 29 are separated from each other.
This is to make the 7-reaction with the fixed side such as the support stand 23 zero.

This reduces rocking resistance and improves measurement accuracy.

The non-contact state can be achieved by adjusting the stopper 32 and the guide stopper 27.

Furthermore, a drive device such as an electric motor may be used instead of the cylinder 14.

As explained above, according to the present invention, measurement accuracy is improved, and there is no need to worry about accidents due to clutch malfunction.
In this way, an attachment/detachment device suitable for a floating flywheel can be obtained.

Furthermore, since it is automatic, remote automatic control is possible as in the past.

[Brief explanation of drawings]

1 and 2 are a partially cutaway front view and a partially cutaway side view respectively showing a conventional example, and FIGS. 3 and 4 are a partially cutaway front view and a partially cutaway side view respectively showing an embodiment of the present invention. Broken side view, Figures 5 to 7
The figures are a sectional view, a plan view, and a plan view showing the main parts, respectively. 5... Flywheel, 8... Spline fitting, 9
...Spline boss, 10,10'...operation branch,
10a, 10a...Operating handle, 12...Roller pin, 14...Cylinder, 16...Bed, 1
8...Frame, 19...Hydraulic pad, 22...
Guide part, 24... Operating device, 27... Guide stopper, 28at28b... Leaf spring, 30... Slide base, 31... Slide seat, 32... Stopper 33.
...Switch.

Claims (1)

[Scope of utility model registration request] A flywheel 5 is pivotally supported within a frame 18 floated by a hydraulic pad 19, and attachment and detachment of the flywheel 5 is performed using a spline 5a provided on the flywheel 5 and a rotating shaft 3.
In a floating flywheel attachment/detachment device using a clutch consisting of a spline fitting 8 and a spline boss 9 fixed to the frame 18, one end is rotatably connected to the frame 18, and an operation handle 10a' connected to the other end. an operating branch rod 10' that passes through the frame 18 without contact;
A roller pin 12 slidably connects the operating branch 10' and the spline boss 9, and the operating handle 10.
a guide portion 22 having a guide stopper 27 and plate springs 28a and 28b for fixing the a' in a predetermined position; and a slide for moving the operating handle 10a' by bringing either one of the pair of slide protrusions 30a into contact with the operating handle 10a'. A floating flywheel attachment/detachment device comprising a stand 30 and a stopper 32 that separates the operating handle 10a' from either of the pair of slide protrusions 30a when the operating handle 10a' is detached or attached.