JPH05319774A - Support device for suspending rail for running - Google Patents

Abstract

PURPOSE:To perform lateral movement of a rail for running at a low resistance and to increase an amount of lateral movement thereof. CONSTITUTION:The upper part of a vertical screw lever 3 is joined in a screwed-in state with the female screw cylinder 1 of an upper eye metal 2 provided at its lower part with the female screw cylinder 1. The lower part of the vertical screw lever 3 is joined in a screwed-in state with the female screw cylinder 4 of a lower eye metal 5 provided at an upper part with the female screw cylinder 4 to form a suspension metal 6 the length of which 18 regulatable. The both end parts of an upper lateral pin 7 inserted in the upper eye metal 2 of the suspension metal 6 are fitted in an upper support metal 9 fixed to the lower part of the upper support member 8. The both end parts of a lower lateral pin 10 inserted in the lower eye metal 5 of the suspension metal 6 are fitted in a lower support metal 12 attached to the upper part of a rail clamp 11, and a rail 13 for running is grasped by means of the rail clamp 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for swingably suspending and supporting a traveling rail in an overhead traveling crane or the like.

[0002]

2. Description of the Related Art Conventionally, as a device for suspending and supporting a traveling rail in an overhead traveling crane so that it can swing, as disclosed in Japanese Utility Model Publication No. 48-38675.
An upper nut with a convex spherical surface on the lower part is screwed onto the upper part of the rod having male threads on the upper and lower ends, and a lower nut with a convex spherical surface on the upper part is screwed onto the lower part of the rod to form a concave on the upper part. An annular upper rod receiving member provided with a spherical surface is placed on the bottom plate of the upper support fitting fixed to the ceiling or the transverse girder, and the convex spherical surface of the upper nut is placed on the concave spherical surface of the upper rod receiving member. The upper portion of the rod is inserted into the inside of the upper rod receiving member and the through hole of the bottom plate, and the lower support fitting fixed to the traveling rail having an I-shaped cross section is provided with a concave spherical surface at the lower part of the upper plate. The ring shaped lower rod receiving material is engaged, the convex spherical surface of the lower nut is fitted into the concave spherical surface of the lower rod receiving material, and the lower part of the rod is inserted into the lower rod receiving material and the transparent surface of the upper plate. A structure that is inserted into a hole is known.

[0003]

In the case of the conventional suspension support device for the traveling rail, the rod swings when the traveling rail moves laterally. However, the rod is composed of the upper rod receiving member and the lower portion. Since the rod receiving member is inserted through the relatively small diameter through hole, the swing angle is small, and the upper nut and the upper rod receiving member slide in surface contact with each other, and the lower nut and the lower rod receiving member are in contact with each other. Since it comes into contact and slides, it has the drawback of high swing resistance.

[0004]

In order to advantageously solve the above-mentioned problems, in the suspension support device for a traveling rail according to the present invention, an upper eye fitting 2 having an internal thread cylinder 1 at the bottom thereof is provided.
The upper part of the vertical threaded rod 3 is screwed onto the female threaded tube 1 in, and the lower part of the vertical threaded rod 3 is screwed onto the female threaded tube 4 in the lower eye fitting 5 having the female threaded tube 4 on the upper part,
A length-adjustable hanging metal fitting 6 is configured, and both ends of the upper lateral pin 7 inserted into the upper eye metal fitting 2 in the hanging metal fitting 6 are
Both ends of the lower horizontal pin 10 fitted into the upper support fitting 9 fixed to the lower part of the upper support member 8 and inserted into the lower eye fitting 5 of the hanging fitting 6 are attached to the upper portion of the rail clamp 11 to support the lower support. The rail clamp 11 is fitted in the metal fitting 12, and the traveling rail 13 is gripped by the rail clamp 11.

[0005]

FIG. 4 and FIG. 5 show an example of a suspension fitting 6 used in an embodiment of the present invention, in which the female screw cylinder 1 in an upper eye fitting 2 having a female screw cylinder 1 in the lower portion thereof. The upper part of the vertical screw rod 3 having the left male screw 14 and the right male screw 15 is screwed together, and the lower part of the vertical screw rod 3 is screwed to the female screw cylinder 4 of the lower eye fitting 5 having the female screw cylinder 4 on the upper part. The upper lock nut 16 screwed on the upper side of the vertical screw rod 3 is pressed against the lower surface of the female screw cylinder 1 of the upper eye fitting 2, and the lower lock nut 17 screwed on the lower side of the vertical screw rod 3 is A wrench engaging flat surface portion 18 is provided at an intermediate portion in the vertical direction of the vertical screw rod 3, which is pressed against the upper surface of the female screw cylinder 4 of the lower eye fitting 5.

FIG. 6 and FIG. 7 show another example of the hanging metal fitting 6 which can be used in the embodiment of the present invention, in which upper and lower portions of the vertical threaded rod 3 are respectively provided with male screws in the same direction, for example. Although the right male screw 15 is provided, other configurations are the same as those of the hanging fitting 6 shown in FIGS. 4 and 5.

1 and 3 show a suspension support device for a traveling rail according to an embodiment of the present invention, which uses the suspension fitting 6 shown in FIG. 4 and FIG. I
An upper support member 8 made of a steel beam having a cross section is erected and fixed, and a horizontal member 20 and a downward-opening groove-shaped support metal fitting 21 fixed to the lower central part of the horizontal member 20 are provided on the lower surface of a lower flange 19 of the upper support member 8. A large number of upper support fittings 9 are arranged at intervals in the longitudinal direction of the upper support member 8, and the horizontal member 20 is fixed to the lower flange 19 by clips 22 and bolts 23.

The upper eye fitting 2 of the hanging fitting 6 is
An upper lateral pin 7 having a diameter smaller than that of the circular hole of the upper eye fitting 2 is arranged in the groove of the supporting fitting 21, and a gap is provided between the upper eye fitting 2 and the groove side plate of the supporting fitting 21.
The middle part of the above is inserted into the circular hole of the upper eye fitting 2, and both ends of the upper lateral pin 7 are fitted into the groove side plates of the supporting fitting 21 to prevent the upper lateral pin 7 from coming off at the end thereof. The hanger 6 having the pin 24 press-fitted therein and supported by the upper lateral pin 7 can swing in any direction.

The bottom plate of the downward support groove-shaped lower support fitting 12 is attached to the center upper portion of the upper clamp fitting 25 of the rail clamp 11 with a bolt, and the lower eye fitting 5 of the hanging fitting 6 is the lower support fitting 12 of the lower support fitting 12. An intermediate portion of the lower lateral pin 10 having a diameter smaller than the circular hole of the lower eye fitting 5 is disposed in the groove, and a gap is provided between the lower eye fitting 5 and the groove side plate of the lower support fitting 12. The lower horizontal pin 10 is inserted through the circular hole of the metal fitting 5, both ends of the lower horizontal metal fitting 10 are fitted into the groove side plates of the lower support metal fitting 12, and the retaining pin 26 is press-fitted into the end of the lower horizontal pin 10. The upper horizontal pin 7 and the lower horizontal pin 10 extend parallel to the upper support member 8.

Explaining the structure of the rail clamp 11, the lower clamp metal fittings 27 are disposed on both sides in the longitudinal direction of the upper clamp metal fitting 25, that is, on the lower portions on both sides in the direction perpendicular to the extension direction of the lower horizontal pin 10. The central portion of the upper end of the lower clamp metal fitting 27 is disposed inside stoppers 28 provided at both ends of the upper clamp metal fitting 25, and the through holes on both end sides of the upper plate of the upper clamp metal fitting 25 and the horizontal shape of the lower clamp metal fitting 27 are arranged. The tightening bolt 29 is inserted through the through hole of the plate, and the tightening bolt 2
9 upper clamp metal fittings 25 and lower clamp metal fittings 27
And are tightened.

Side plates 31 perpendicular to the left and right sides of the top plate 30
Are bent and connected downward, and horizontal flanges 32 projecting in a direction approaching each other are bent and connected to the lower ends of the side plates 31, and upward protrusions 33 are bent and connected to the tip of the horizontal flange 32. Thus, the traveling rail 13 is configured. The traveling rail 13 is arranged so as to extend in parallel with the upper support member 8 and is gripped by the rail clamp 11, and even if the hanging metal fitting 6 swings in an arbitrary direction,
The traveling rail 13 is always held in a horizontal state.

By rotating the vertical screw rod 3 in a state where the upper lock nut 16 and the lower lock nut 17 are loosened, the level and levelness of the traveling rail 13 can be adjusted. After making this adjustment, tighten the upper lock nut 16 and the lower lock nut 17,
Vertical screw rod 3 for the upper eye fitting 2 and the lower eye fitting 5
Prevent the rotation of.

As shown in FIGS. 8 and 9, the two traveling rails 13 are arranged so as to extend in the front-rear direction in a parallel state, and the traverse rails 34 having the same structure as the traveling rails 13 are respectively arranged. Wheels 36 of a traveling trolley 35, which is arranged so as to extend in the left-right direction at a lower level than the traveling rails 13, and has no traveling drive device, are mounted on the horizontal flanges 32 of the traveling rails 13, The traverse rail 34 is gripped by a rail clamp 37 attached to the lower portion of the traveling trolley 35. Wheels 40 of a traverse trolley 39 supporting a hoisting machine 38 such as an electric chain block or a manual chain block are mounted on a horizontal flange 41 of a traverse rail 34, and the traverse trolley 3 is
9 also has no traverse drive.

When carrying a load by lifting, a worker manually pulls a chain hanging from the main body of the hoisting machine 38 or a lower hook connected to the lower part of the chain.
The traverse rail 34 is moved in the front-rear direction, and the hoisting machine 38 is moved in the left-right direction, so that the hoisting machine 38 is arranged above a load placed on the floor or a table.

Next, after the load is hoisted by the hoist 38, an operator pushes the load to move the traverse rail 34 in the front-rear direction and move the hoist 38 in the left-right direction. The load is moved above the transportation area, and then the hoisting machine 38 is operated to unload the load to unload the load on the floor or a table.

The traverse rail 34 has a long span, and FIG.
As shown in 0, while the traverse rail 34 is being moved in the direction of the arrow A, the chain or the like of the hoisting machine 38 at one end of the traverse rail 34 is pulled to pull the one end of the traverse rail 34. When it is moved in the opposite direction (arrow B direction), one end of the traverse rail 34 is moved in the arrow B direction while the other end of the traverse rail 34 is moving in the arrow A direction due to inertia. Therefore, the traveling rail 13 largely laterally moves. In the case of the present invention, the hanging metal fitting 6 can swing greatly, and therefore a large lateral movement of the traveling rail 13 can be permitted, and the upper eye fitting 2, the upper lateral pin 7, the lower eye fitting 5, Since the lower lateral pins 10 are in point contact with each other, the swing resistance can be reduced.

[0017]

According to the present invention, the upper part of the vertical threaded rod 3 is screwed onto the female screw cylinder 1 of the upper eye fitting 2 having the female screw cylinder 1 at the lower portion, and the female screw cylinder 4 is provided at the upper portion. An upper horizontal pin inserted into the upper eye fitting 2 of the hanging metal fitting 6 is constructed by screwing the lower part of the vertical screw rod 3 into the female screw cylinder 4 of the lower eye fitting 5 to form a hanging metal fitting 6. Both ends of 7 are fitted in an upper support fitting 9 fixed to the lower part of the upper support member 8, and both ends of the lower lateral pin 10 of the hanging fitting 6 are attached to the upper part of the rail clamp 11. Since the rail 13 is fitted and the traveling rail 13 is gripped by the rail clamp 11, the hanging bracket 6 is attached to the upper lateral pin 7 attached to the upper support bracket 9.
Can be swung in a large angle in an arbitrary direction, and the hanging metal fitting 6 can be swung in a large angle in an arbitrary direction with respect to the lower support metal fitting 12 attached to the rail clamp 11 that grips the traveling rail 13. Further, the upper eye fitting 2 and the upper lateral pin 7 and the lower eye fitting 5 and the lower lateral pin 10 are
Since the contact is point-like, the swing resistance of the hanging metal fitting 6 can be reduced.

[Brief description of drawings]

FIG. 1 is a partially longitudinal front view showing a suspension support device for a traveling rail according to an embodiment of the present invention.

FIG. 2 is a partially longitudinal side view showing a suspension support device for a traveling rail according to an embodiment of the present invention.

FIG. 3 is a vertical sectional front view showing a part of FIG. 1 in an enlarged manner.

FIG. 4 is a front view showing an example of a hanging metal fitting used in an embodiment of the present invention.

5 is a side view of the hanging metal fitting shown in FIG. 4. FIG.

FIG. 6 is a front view showing another example of the hanging metal fitting that can be used in the embodiment of the present invention.

FIG. 7 is a side view of the suspension fitting shown in FIG.

FIG. 8 is a partially longitudinal front view showing an overhead traveling crane having a suspension support device for traveling rails of the present invention.

9 is a partially longitudinal front view showing a part of FIG. 8 in an enlarged manner.

FIG. 10 is a schematic plan view showing an example of lateral movement of a traveling rail.

[Explanation of symbols]

 1 Female screw cylinder 2 Upper eye metal fitting 3 Vertical screw rod 4 Female screw cylinder 5 Lower eye metal fitting 6 Hanging metal fitting 7 Upper horizontal pin 8 Upper support member 9 Upper support metal fitting 10 Lower horizontal pin 11 Rail clamp 12 Lower support metal fitting 13 Running rail 14 Left male screw 15 Right Male Thread 16 Upper Lock Nut 17 Lower Lock Nut 18 Flat Part for Spanner Engagement 19 Lower Flange 20 Horizontal Member 21 Supporting Metal Fitting 22 Clip 23 Bolt 24 Locking Pin 25 Upper Clamping Metal Fitting 26 Locking Pin 27 Lower Clamping Metal Fitting 28 Stopper 29 Tightening bolts 30 Top plate 31 Side plates 32 Horizontal flange 33 Upward protruding ridges 34 Traverse rails 35 Traveling trolleys 36 Wheels 37 Rail clamps 38 Hoisting machines 39 Traverse trolleys 40 Wheels 41 Horizontal flanges

Claims (1)

[Claims] 1. A lower eye fitting (5) having an internal threaded cylinder (1) having a female threaded cylinder (1) at a lower portion thereof and an upper part of a vertical screw rod (3) screwed onto the female threaded cylinder (1) and having an internal threaded barrel (4) at an upper part. The lower portion of the vertical screw rod 3 is screwed into the female screw cylinder 4 to form a hanging metal fitting 6 of which the length is adjustable, and both end portions of the upper horizontal pin 7 inserted into the upper eye metal fitting 2 in the hanging metal fitting 6 are Upper support fitting 9 fixed to the lower part of the upper support member 8
Both ends of the lower horizontal pin 10 inserted into the lower eye fitting 5 of the hanging fitting 6 are fitted into the lower support fitting 12 attached to the upper portion of the rail clamp 11, and the rail clamp 11 is used for traveling. A suspension support device for a traveling rail that holds the rail 13.