JPH085887Y2 - Carrying combined carrier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a suspended monorail carrier-carrying vehicle for traveling in a tunnel such as a dam monitoring corridor formed in a dam bank.

2. Description of the Related Art Conventionally, for example, as a carrier-carrying vehicle to be installed in a tunnel such as a monitoring corridor formed in a dam dike, conventionally, it is suspended freely on a ceiling rail 41 in the tunnel as shown in FIG. It is known that the carriage-equipped carriage unit 42 with a cabin and the drive carriage unit 44 mounted on the ceiling rail 41 and driving the carriage unit 42 through the connecting device 43 are towed.

The coupling device 43 is configured to allow the transport carriage unit 42 and the drive carriage unit 44 to behave independently. This will be described with reference to FIG.

In other words, this is one end portion 45a of a pair of movable connecting members 45A, 45B along the rail 41 corresponding to both sides of the ceiling rail 41 by the pins 46A, 46B.
42 is attached rotatably to the mounting members 47A, 47B on the 42 side in a vertical plane indicated by an arrow a, and the other end portions 45b of the movable connecting members 45A, 45B are attached to both end portions of the connecting shaft 48. Connecting shaft 48
To the mounting rod 49 on the side of the drive carriage unit 44,
A universal joint portion 52 including a spherical body 50 and a spherical bush 51 is rotatably connected in a vertical plane indicated by arrows a and b and in a horizontal plane indicated by arrow c.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the conventional carrier-carrying vehicle having the above-described configuration, the other end portions 45a of the pair of movable connecting members 45A and 45B in the connecting device 43 are located on the side of the carrier vehicle unit 42. Against arrow a
Since it is rotatably connected only in the vertical plane shown by,
The degree of freedom of this connecting portion is small, and therefore, when the ceiling rail 41 reaches a curved portion, the connecting device 43 itself is likely to be subjected to bending or twisting stress, which may cause traveling shake of the carriage units 42, 44. There is.

As a countermeasure, as shown in FIG. 6, one movable connecting member 61 is used, and both ends thereof are connected to the transport carriage unit 42 and the drive carriage unit 44 side via the universal joint portions 62 and 63, respectively. A method of increasing the degree of freedom of the connecting portion can be considered. However, in this structure, since one movable connecting member 61 is used, the ceiling rail 41 restricts the space for arranging the connecting device 64, which makes mounting difficult.

The present invention has been made in order to solve such a problem, and provides a carrier-carrying carrier truck that allows a large degree of freedom in the connecting portion between the carrier carriage unit and the drive carriage unit and the connecting device, and is easy to mount. Intended to provide.

Means for Solving the Problems In order to achieve the above object, the present invention provides a pair of movable connecting members disposed along the rails on both sides of the ceiling rail so that one end of each of the pair of movable coupling members is on the side of a carrier vehicle. To the drive carriage unit side, and a connecting shaft extending laterally to the drive carriage unit side is pivotally rotatably supported in the horizontal plane at the central portion thereof. The left and right ends of the connecting shaft and the other ends of the movable connecting members are rotatably connected in the vertical and horizontal planes via the second universal joints.

Operation According to the above configuration, even when the ceiling rail has a curved portion or a step portion in the up-down direction, the rotation at the universal joint portions at both ends of the pair of movable connecting members and the connecting shaft of the drive carriage unit side. Since it corresponds to the curve and the step by the combination with the rotation, the stress of bending and twist does not act on the coupling device including the movable coupling member, thus ensuring the smooth traveling of the transport and drive carriage unit, Further, since the transport carriage unit and the drive carriage unit are connected to each other on both sides of the ceiling rail, restrictions on the connection space are reduced.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, reference numeral 1 denotes a horizontal H-shaped ceiling rail fixed in a tunnel (not shown) in a dam bank, and a transport carriage unit 3 having a cabin 2 has traveling wheels 4 on the ceiling rail 1. It is suspended so that it can travel through. Reference numeral 5 denotes a drive carriage unit that is movably suspended on the ceiling rail 1 via traveling wheels 6 and is self-propelled via a rack and pinion mechanism. The dolly unit 3 is towed. Reference numeral 8 is a motor that drives a drive pinion (not shown) in the rack and pinion mechanism via a speed reducer 9 as a part of the drive carriage unit 3, and 10 is a rocking device in the transport carriage unit 3.

The configuration of the connecting device 7 will be described with reference to FIGS. 2 and 3.

Reference numerals 11A and 11B denote a pair of movable connecting members arranged along the rail 1 on both the left and right sides of the ceiling rail 1, and a spherical bush is provided at each one end 11a of the movable connecting members 11A and 11B. 12A and 12B are retained and retained by stoppers 13A and 13B. 14A and 14A are a pair of mounting rods projecting from the carriage unit 3 corresponding to one end 11a of the movable connecting member 11A, and 14B and 14B are one end of the movable connecting member 11A.
Corresponding to 11a, the projecting unit 1 is installed on the carrier unit 3
It is a pair of mounting rods.

15A and 15B are pins that are respectively held by the mounting rods 14A and 14B and pivotally support the respective one end portions 11a of the movable connecting members 11A and 11B, and the pins 15 are positioned by cylindrical spacers 16A and 16B, respectively. The spherical bodies 17A and 17B that are in sliding contact with the spherical bushes 12A and 12B are fixed.

The spherical bush 12 (12A, 12B) or spherical body 17 (17A, 17B)
By B), each one end 11a of the movable connecting members 11A, 11B can be rotated with respect to the mounting rod 14 (14A, 14B) in a vertical plane indicated by arrows a, b and in a horizontal plane indicated by arrow c. The 1st universal joint part 18 (18A, 18B) connected is comprised. 19
Reference numerals A and 19B are backing plates for the pins 15A and 15B, respectively.

The drive carriage unit 5 is provided with one mounting rod 20. The mounting rod 20 has a central portion of a connecting shaft 21 extending rightwardly rotatable by a connecting pin 22 in a horizontal plane indicated by an arrow c. Is pivotally attached to. 23A and 23B are spherical bodies that are positioned and fixed to the both ends 21a and 21b of the connecting shaft 21 by ring-shaped spacers 24A and 24B, respectively.

At the other ends 11b of the movable connecting members 11A and 11B, spherical bushes 25A and 25B, which are in sliding contact with the spherical bodies 23A and 23B, are retained and retained by stoppers 26A and 26B. By the spherical body 23 (23A, 23B) and the spherical bush 25 (25A, 25B), the other ends 11b of the movable connecting members 11A, 11B are respectively attached to both ends 21a, 21b of the connecting shaft 21 by arrows a, b. The second universal joint portion 28 (28A, 28B) is rotatably connected in the vertical plane indicated by and in the horizontal plane indicated by the arrow c.

In the above configuration, when power is supplied to the drive carriage unit 5 from a power supply rail (not shown), the drive pinion of the rack and pinion mechanism is rotationally driven by the traveling motor 8, so that the drive carriage unit 5 passes through the traveling wheels 6. As a result, the ceiling rail 1 is self-propelled, and the transport carriage unit 3 is towed through the coupling device 7.

If the ceiling rail 1 curves to the left or right or if there is a step, the carrier vehicle and drive vehicle units 3 and 5 try to behave independently. In that case, since the carrier unit 3 and the coupling device 7 are rotatably coupled by the first universal joint portions 18A, 18B in the vertical planes indicated by the arrows a, b and in the horizontal plane indicated by the arrow c, both The relative displacements of 3 and 7 are absorbed by the universal joint portions 18A and 18B. On the other hand, since the drive carriage 5 and the coupling device 7 are rotatably coupled by the second universal joint portions 27A, 27B in the vertical planes indicated by the arrows a, b and in the horizontal plane indicated by the arrow c, both of them 5, 7 The relative displacement of is absorbed by the universal joint portions 27A and 27B. That is, even when the ceiling rail 1 passes through a curve or the like, bending or twisting stress does not act on the connecting device 7, and smooth traveling of the carrier 3 is ensured.

In addition, a pair of movable connecting members 11 in the connecting device 7 described above.
Since A and 11B are arranged on both the left and right sides of the ceiling rail 1, the arrangement space of the connecting device 7 is not limited by the ceiling rail 1, and therefore the mounting can be easily performed.

As described above, according to the present invention, one end of each of the pair of movable connecting members arranged on both sides of the ceiling rail is rotatable in the vertical and horizontal planes with respect to the carrier unit side. The second universal joint portion is also connected to the connecting shaft rotatably pivoted on the drive carriage unit side in the horizontal plane. Since it is rotatably connected in the vertical and horizontal planes through the connection, the degree of freedom in connection with the relative displacement of the connecting portion between the transport carriage and the drive carriage becomes large, and bending or twisting stress on the connecting portion in the curve of the ceiling rail, etc. Bias is avoided,
The carriage unit can be stably run, and the layout of the connecting portions of the two carriage units is not hindered by the ceiling rail, which facilitates mounting.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 4 is an overall side view showing a carrier truck for combined use of people, and FIG. 2 is a schematic diagram showing a connected state of a transport carriage unit and a drive carriage unit. Plan view, FIG. 3 is a partially cutaway plan view showing the configuration of the coupling device,
FIG. 4 is a schematic plan view showing a connection state between a conventional carriage unit and a drive carriage unit, FIG. 5 is a partially cutaway plan view showing the structure of the connecting device shown in FIG. 4, and FIG. FIG. 10 is a schematic plan view showing a connected state of a transport carriage unit and a drive carriage unit in a conventional improvement plan. 1 ... Ceiling rail, 3 ... Transport carriage unit, 5 ... Drive carriage unit, 11A, 11B ... Movable connecting member, 18A, 18B ...
… First universal joint, 21 …… Coupling shaft, 27A, 27B …… Second
Universal joint part.

Claims (1)

[Scope of utility model registration request] Claims: 1. A carrier truck for combined use of cargo, wherein a carriage-equipped carriage unit hung on a ceiling rail so as to travel freely is towed by a drive carriage mounted on the ceiling rail. One end of each of a pair of movable connecting members arranged along the rail corresponding to both sides is rotatable in the vertical and horizontal planes with respect to the carrier unit side via the first universal joint. A connecting shaft that is connected to the drive carriage unit side is pivotally mounted at the central portion thereof so as to be rotatable in a horizontal plane, and the left and right end portions of the connecting shaft and the other end portions of the both movable connecting members. Are rotatably connected in the vertical and horizontal planes via the second universal joints, respectively.