JPH04197994A - Crane saddle unit - Google Patents

Abstract

PURPOSE:To eliminate necessity of figuring out a right angle by having the wider surface on the outer side of a set of a channel steel face each other, fitting parts on the driving end of the unit through plates and connecting the channel steels together through connecting fitting mounting plates and fitting members directly on the channel steels at the driven end of the unit. CONSTITUTION:Two channel steel frames 7A, 7B are arranged in the manner to have the wider surface on the outer side face each other and connected together by means of connecting fittings 30 through connecting fitting mounting plates 28 on a motor 22 driving end. Also on the driving end, such parts as driving wheels 8, 8B, on which accelerators 12, bearings 10 and snaking prevention flanges 8A, 8C are attached, are bolted thereon with bolts 15 through plates 21 and an intermediate shaft 20 is also bolted thereon with bolts 29 through the plates 21. On the driven end, such parts as driven wheels 9, on which accelerators 12, bearings 10 and snaking prevention flanges 9A are attached, are bolted directly onto the frames 7A, 7B with bolts 15 and the frames 7A, 7B are connected together with connecting fittings 30. Thus the processing reference plane is made into one whereby precision can be upgraded easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a saddle unit for a crane, and more particularly, to a saddle unit for a crane that can be manufactured based only on the wide side of channel steel.

[Conventional technology]

As a conventional crane saddle unit, Japanese Patent Application Laid-Open No. 57
As shown in Japanese Patent No. 121587, no consideration was given to using only the wide side of the channel steel.

[Problem to be solved by the invention]

The above conventional technology does not consider using only the wide side of the channel steel, but uses two sides, a wide side and a narrow side, and in order to suppress noise and vibration, JIS general tolerances are used in manufacturing. There was a problem in that it was necessary to force use with a deviation in the perpendicularity (within 2.5% of the length of the side of the narrow side). The purpose of the present invention is to be able to manufacture a saddle unit for a crane using only one wide side of channel steel, and since only one wide side is machined, it can be handled with a two-dimensional processing machine and can be provided at low cost. The purpose is to

[Means to solve the problem]

In order to achieve the above purpose, an accelerator mounting hole and an intermediate shaft mounting hole are provided in a plate attached to the outer wide side of the channel steel on the drive side of the frame, and the wide side of the channel steel on the driven side of the frame. This saddle unit for a crane is characterized in that an axle mounting hole is provided directly in the saddle unit, and the connecting fitting mounting plates are also arranged so as to be mounted on the outer wide surfaces of both ends of the channel steel.

C action] On the drive side of the frame, an accelerator mounting hole and an intermediate shaft mounting hole are provided on the plate attached to the wide outer side of the channel steel.
Similarly, the connection fitting mounting plate should be attached to the wide outer side of the channel steel that will become the frame.

On the driven side of the frame, we provided an accelerator mounting hole directly on the wide side of the channel steel, and all the used sides of the channel steel were wide.
This eliminates the need to force squareness errors when using two surfaces, and the work can now be done using a two-dimensional processing machine.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 4. First, based on Figure 4, the suspended overhead crane 6
The overall configuration will be explained. A suspended overhead crane 6, in which a suspended crane saddle 5 is connected to both ends of a girder 4 on which a hoisting machine 3 is suspended, is installed on an I-beam 2 of a traveling tread member attached to the ceiling of a building 1. . The suspended overhead crane 6 that has been erected can travel over the entire length of the T-shaped #42 tread inside the building by operating a push button (not shown).
This will be explained in detail based on the drawings. A driving wheel 8.8 is provided with meandering prevention flanges 8A and 8C at the front and rear of the frames 7A and 7'B of the suspended crane saddle 5.
B and the mounting hole for the driven wheel 9, which is similarly provided with the meandering prevention flange portion 9A, are made in the frames 7A and 7B by the accelerator 12 via the bearing 10 and the hole C for preventing removal of the bearing IO via the ring 11. 13, and is fixed by a key plate 14 to prevent removal.

In order to prevent the wheels 8.8B and 9 from coming off the axel 12, the through port 15 passes through the axel 12 and is screwed into the central threaded part of the wheel stopper 17 fitted into the notch 16 at the tip of the axel 12. Both ends press the inner ring part of the bearing 10, and the wheels 8.8B,
9 so that it does not move in the thrust direction. The key plate 14 is fixed to the frames 7A and 7B by ports 18. The frames 7A and 7B have a long support member with a U-shaped cross section and side plates 19 welded to both ends. frame 7A,
It consists of a wheel mounting hole 13 welded and fixed to the wide side of 7B, and a plate 21 in which a hole 36 for a bearing 35 for mounting an intermediate shaft 20 is provided. A gear is machined on the outer periphery of the flange portion 8A of the drive wheel 8.
The wheel binion 23 of the modle 22 and the intermediate gear 24 are engaged with each other. The modle 22 is fixed to the inside of the U-shaped wide surface by a port 25. The rotational force of the modle 22 is transmitted to the intermediate gear 24 via the gear of the flange portion 8A of the drive side wheel 8, and is transmitted to the intermediate shaft 20 because the inner side of the intermediate gear 24 meshes with the intermediate shaft 20 through a spline. Intermediate gear 2 on frame 7B side
4A is similarly engaged with the intermediate shaft 20, so the rotational force of the moder 22 is finally transmitted to the drive side wheel 8B as well. When attaching the intermediate shaft 20 to the plate 21, push the bearing 35 into the hole 36 of the plate 21 and attach the intermediate gear 24.
．． 24A into the intermediate shaft 20, then the collar 26
and attach it to the hole of bearing 35. Intermediate gear 24, 24
A is fixed using a set screw 27. Connecting bracket mounting plate 2
8 is fixed to both ends of frames 7A and 7B by ports 29.

Further, the connecting fitting 30 is fixed to the connecting fitting mounting plate 28 by a port 31, and the frames 7A and 7B are connected so as to become rigid bodies. A damper 32 for cushioning the impact during a collision is fixed to the connecting fitting 30 by a port 33 and a nut 34 passed through a hole in the damper 32. Next, a description will be given based on FIG. 2. FIG. 2 shows an intermediate shaft portion according to the present invention.

Plate 2 fixed by welding to the outer wide side of frames 7A and 7B
1 has a hole for attaching the axle 12 and a hole for a bearing 35 for attaching the intermediate shaft 20, which are machined simultaneously with the frames 7A and 7B. - Since it is machined into a single plate, the machining accuracy is extremely high. be able to. Next, a description will be given based on FIG. FIG. 3 shows the connecting fitting part according to the present invention, and the connecting fitting mounting plate 28 is fixed to the outer wide side of the frames 7A, 7B with bolts 29. Although the connecting fitting mounting plate 28 is an L-shaped part, it is a small part and the squareness accuracy can be made extremely high by machining. According to this embodiment, frame 7A.

Since can making work and machining can be performed using only the wide side of 7B as a reference, the material of frames 7A and 7B can be used as is, and the accuracy of the squareness can be achieved with a hydraulic press or hammer unlike when conventionally two sides were used. There is no need to take out the saddle, the work process becomes more efficient, and a lane saddle can be provided at a lower cost.

〔Effect of the invention〕

According to the present invention, since the processing reference surface of the frame can be set to only one surface, it is possible to omit the step of determining the accuracy of the perpendicularity, and it is possible to provide a lane saddle unit with high production efficiency and low cost.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a saddle unit for a crane saddle according to the present invention. FIG. 2 is a cross-sectional view of the intermediate shaft portion of the saddle unit for a crane saddle of the present invention, FIG. 3 is a cross-sectional view of the connecting fitting portion of the saddle unit, and FIG. 4 is a diagram of the crane saddle unit in an installed state. 7A, 7B - Frame, 8, 8B - Drive side wheel, 9... Driven side wheel, 12... Accelerator, 21...
・Plate, 28 ・Connection fitting mounting plate, 30 ・Connection fitting, 20 ・Intermediate shaft, 24 ・Intermediate gear. Agent Patent Attorney Akio Takahashi] Back\, -゛, -・
2□ (1 other person) Fumiko Shi・

Claims (1)

[Claims] 1. In a crane saddle unit that is arranged so that a pair of wheels supported by a frame travel while suspended on the inner hypotenuse of an I-beam, a saddle unit is attached to the outer wide side of a channel steel on the drive side of the frame. An accelerator mounting hole and an intermediate shaft mounting hole were made on the plate, and the connection fitting mounting plate was similarly attached to the outside wide side of the channel steel that would become the frame, and all the used surfaces of the channel steel were made wide. A unique saddle unit for cranes.