JPS63137073A - Travelling guide apparatus for suspension type cart - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a guide groove and a guide wheel for guiding the running direction of the running wheels of a suspended conveyance vehicle that is suspended from a running rail having a ■-shaped cross section. The present invention relates to a travel guide device comprising:

[Prior art]

A first conventional example of this type of travel guide device is shown in FIG.

In Fig. 7, (al is a front view, (b) is a side view, (
C) is a plan view.

The upper surfaces on both sides of the lower flange of the lower flange of the I-shaped cross-section running rail 3 shown by the two-dot chain line are the rail surfaces, and the four flanged running wheels 4 are arranged in two pairs on the left and right in the running direction and run in contact with each other.
A trolley prosock 5 equipped with the following is run on the running rail 3, with the running wheels 4 driven by a drive device (not shown), and a suspension type conveyance vehicle (not shown) suspended from the suspension support part 7. .

The flange of the running wheel 4 comes into contact with the end portion of the lower flange of the running rail 3 that determines the width, thereby guiding the running direction of the running wheel 4.

A second conventional example of this type of travel guide device is shown in FIG.
In FIG. 8, (al is a partial cross-sectional side view of the E-E section of -), ...) is a partial cross-sectional front view of the D-D section of Ta),
+c+ is a plan view for explanation.

■The top surfaces on both sides of the lower flange of the running rail 3 with a shaped cross section are used as rail surfaces, and it can freely turn in the running direction by a vertical shaft 6 equipped with two running wheels 4, one pair on the left and right, and a bearing 10. The vehicle body 24 is supported by a pair of suspension supports 20, one each in the front and rear with respect to the running direction.
This is a suspended transport vehicle 1 which is driven by a suspended transport vehicle.

Two suspension supports 20 are provided on each suspension support base 20 at the end that determines the width of the lower flange of the travel rail 3, two on each side in the travel direction.

A total of four guide wheels 28 come into contact with each other to guide the running direction of the running wheels 4.

[Problem that the invention seeks to solve]

In the first conventional example shown in FIG.
Since the interval W between the left and right flanges of is fixed, when the width of the lower flange of the straight section of the running rail 3 is Bl and the width of the lower flange of the curved section of the running rail 3 is 82, W > 81 > ll .

Therefore, if the guide clearances of the straight and curved sections are the same size, the width of the lower flange of the curved section is 82
There was a drawback that the dimensions had to be cut down according to the curvature of the traveling rail 3.

Furthermore, if the above-mentioned cutting of the curved part is omitted and the setting is made to be B+-82, the guide clearance in the straight part will increase, causing play in the guidance of the suspended guided vehicle 1 in the running direction, making it difficult to accurately and smoothly guide the suspension type guided vehicle 1. The problem was that it hindered running and caused meandering and vibration.

In the second conventional example as well, as shown in FIG. 8(e), since the interval W between the guide wheels 28 is fixed, there is a drawback similar to that of the first conventional example. FIG. 9 is an explanatory diagram for calculating the cutting amount δ of the curved portion of the running rail 3, showing an enlarged view of the F section shown in FIG. 8 (C1).

In FIG. 9, 4
The center distance in the width direction of each guide wheel 28 is U.

The center distance in the running direction is V, the center of the curved part of the running rail 3 is a, and the inner radius of the lower flange of the running rail 3 is R1.
, the outer radius is R1.

Let b be the foot of the perpendicular line drawn from a to the center line connecting the two guide wheels 28 on the outside of the curved portion, and let c and d be the centers of the guide wheels 28, respectively.

If the distance ab is X5aC, Y is the radius of the guide wheel 28, and the angle between straight line ab and straight line ad is θ, then
B+) +2r) 10(B+ -r) co sθr
=15fl, V-200mm, Bl-B+
Assuming Rt-75 Tsuru, (1) When RI-1,015m -5,73917゜cos θ'-0,994987 X -7s+ 2 x15+1000x cos
θ−1,099.987,°, δl −1,090+1
5- Y -0,4769 (M) (2) R, -515
For a crane, perform the same calculation as in (1) to obtain δ* -1,75575(m).

That is, in the conventional example, the smaller the radius R+ of the curved part of the running rail 3, the larger the amount of cutting δ becomes, and the difference between the width of the straight part and the flange becomes a value that cannot be ignored. There is a disadvantage that the amount of cutting work increases, and if the width of the flange of the curved part of the traveling rail 3 is made the same as the width of the straight part by omitting the cutting work, the value of radius R + cannot be reduced to a small value. However, there is a drawback that there are restrictions on the installation conditions of the transport vehicle equipment.

The present invention solves the drawbacks of the conventional example, and moreover, the second embodiment uses four guide wheels 28 for one suspension support stand 20, whereas the present invention uses four guide wheels 28 for one suspension support stand 20. 2 pieces
It is an object of the present invention to provide a travel guide device 2 for a suspended transport vehicle 1 that can reduce the number of vehicles by half.

[Means for solving problems]

The present invention provides a suspended transport vehicle that travels suspended on a traveling rail with an I-shaped cross section, which has a downwardly directed opening attached to the lower surface of a lower flange of the traveling rail, and the width of the opening A guide groove with a groove-shaped cross section that allows the wheels to pass through smoothly with little clearance, and 1 that suspends and supports a suspended conveyance vehicle.
A pair of suspension supports is provided with a pair of guide wheels, each of which is rotatably supported by an axis perpendicular to the direction of travel, and is inserted into the opening of the guide groove. This is a traveling guide device for a suspended conveyance vehicle, characterized in that it guides the vehicle in a direction.

[Effect].

The elements of the present invention include a guide groove provided on the lower surface of the lower running flange and a guide ring, and the main inner ring moves in the guide groove to guide the running direction of the running wheel. This eliminates the need for the traveling guide device to guide the direction of travel using the lower flange of the traveling rail as in the conventional example, and therefore eliminates the need to reduce the width of the lower flange in accordance with the curvature of the curved portion of the traveling rail. Furthermore, the radius of the curved portion of the traveling rail can be reduced to a small value, and the installation conditions and application range of the transport vehicle equipment can be expanded.

〔Example〕

A first embodiment of the invention is shown in FIGS. 1, 2, 3, and 4.

Fig. 1 is a partially sectional side view of section B-B in Fig. 2, Fig. 2 is a partially sectional front view of section A-A in Fig. 1, and Fig. 3 is a plan view for explanation. , FIG. 4 is a sectional view of the running rail and the guide groove.

1 left and right with respect to the running direction in which the running rail 3 with an I-shaped cross section runs with the upper surfaces of both sides of the lower flange in contact with the rail surface.
A vertical pivot shaft 6 with a pair of running wheels 4 attaches the inner ring of a bearing 10 through a collar 8 and is fixed with a shaft stopper 12, and when the bearing 10 is inserted into a housing 14, its outer ring is fixed. The present invention relates to a travel guide device 2 for a suspended conveyance vehicle 1 that allows a pair of suspension support stands 20, which are fixed by a lid 16 and screws 18 and supported in a rotatable manner, to be rotated back and forth in the direction of travel.

As shown in detail in FIG. 4, the present invention has a groove section provided on the lower surface of the lower flange of the running rail 3 with a width that allows the guide wheel 2 having a downward opening to pass through smoothly with little clearance. A guide groove 26 having a groove-shaped cross section, and the true inner groove 2
6, and each pair of guide wheels 2 and 2 are rotatably supported on the suspension support 20 by an axis perpendicular to the running direction of the running wheel 4. Suspended transport vehicle 1 characterized by being guided in the direction of travel
This is a traveling guide device 2.

As shown in FIG. 3, the suspension type carrier 1 has a pair of suspension supports 20 fixed to a vehicle body 24, and a guide rail 26.
Since each pair of guide wheels 28 are provided so that they can pass smoothly with little clearance and constitute the traveling guide device 2, the traveling wheels 4 can be driven by a drive device (not shown) or separately installed. When the suspended guided vehicle 1 is run by being connected to wire lobes or chains driven by the same or connected to a locomotive driven on the same running rail 3, the direction in which the running wheels 4 run is determined. is guided by the traveling guide device 2.

Since the travel guide device 2 does not guide the travel direction using the lower flange of the travel rail 3 as in the conventional example, there is no need to cut down the width of the lower flange in accordance with the curvature of the curved portion of the travel rail 3.

Moreover, the radius of the curved portion of the traveling rail 3 can be made small, and the installation conditions and application range of the transport vehicle equipment can be expanded.

A second embodiment of the invention is shown in the sectional view of FIG.

The difference from the first embodiment is that the configuration of the guide groove 26 has been changed, and other points are the same.

A pair of strips 26a, 26a each having a chevron-shaped cross section are attached to the lower surface of the lower flange of the running rail 3 having an I-shaped cross section, with an interval that allows the guide wheel 28 to pass through smoothly with little clearance, thereby forming an opening facing downward. The other points are the same as the first embodiment.

A third embodiment of the invention is shown in the sectional view of FIG.

1st. The difference from the second embodiment is that the configuration of the guide groove 26 has been changed, and other points are the same.

■A pair of vertical walls 26b are provided with an interval that allows the guide ring 28 to pass smoothly with little clearance on the lower surface of the lower flange with a shaped cross section.
, a guide groove 26b having a downward opening by using a traveling rail 3 integrally formed with the guide grooves 26b,
26b, and the other points are the same as the first and second embodiments.

〔Effect of the invention〕

The present invention relates to a suspension-type guided vehicle in which a pair of suspension supports each having a running wheel and a guide wheel are provided on a running rail having an I-shaped cross section at the front and rear of the running direction, and in which A guide groove with an opening is provided, and a guide wheel provided on a suspension support is inserted into the guide groove to guide the running direction of the running wheel. Unlike the guide using the lower flange of the rail, there is no need to cut down the width of the lower flange at the curved part of the running rail, and the radius of the curved part of the running rail can be reduced to a small value, which improves the installation conditions of the guided vehicle equipment. , which has the effect of expanding the scope of application.

[Brief explanation of the drawing]

1, 2, 3, and 4 show a first embodiment of the present invention, and FIG. 1 is a partial cross-sectional side view of section BB in FIG. 2 is a partially sectional front view of the section A-A in FIG. 1, FIG. 3 is a plan view for explanation, FIG. 4 is a sectional view of the running rail and guide groove, and FIG. 6 is a sectional view showing the third embodiment of the present invention, and FIG. 7 is a sectional view showing the first conventional example (al is a front view, (bl is a side view). Figures (C) and (C) are plan views, and Figure 8 shows the second conventional example. (C) is a plan view for explanatory purposes, and FIG. 9 is an explanatory view showing an enlarged section F shown in (C1) in FIG. 8. l: Suspended conveyance vehicle , 2: travel guide device, 3: travel rail, 4: travel wheel, 5 nitroly block, 6: pivot axis, 1
0: bearing, 14: housing, 20: suspension support, 24
: Vehicle body, 26: 'X inner groove, 28: Guide wheel. ,+′. , 1 (Dejin E!?! Akira Toyamaguchi ・, 1. Bu, 4 Figure 5 Figure 6 (G) (b)

Claims (1)

[Scope of Claims] 1) A suspended transport vehicle that travels suspended from a traveling rail with an I-shaped cross section, which has a downwardly directed opening provided on the lower surface of a lower flange of the traveling rail. A guide groove with a groove-shaped cross section with a width that allows the guide wheels to pass through smoothly with little clearance, and a pair of suspension support stands that suspend the suspension type conveyance vehicle. A suspended transport vehicle, comprising a pair of guide wheels that are rotatably supported and inserted into the openings of the guide grooves to guide the traveling direction of the suspended support platform. Travel guidance device. 2) In the item described in claim 1, a pair of strips having a chevron-shaped cross section are provided on the lower surface of the lower flange of the running rail having an I-shaped cross section with an interval that allows the guide wheel to pass smoothly with little clearance. 1. A travel guide device for a suspended transport vehicle, characterized in that the guide groove has a downwardly directed opening. 3) In the item described in claim 1, a traveling rail is provided in which a pair of vertical wall portions are integrally molded with a space provided at the lower flange of the I-shaped cross section so that the guide wheel can pass therethrough smoothly with little clearance. A travel guide device for a suspended conveyance vehicle, characterized in that the guide groove has an opening that faces downward when used.