JPS6234942Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a double rail type hoist with auxiliary hoisting.

[Conventional technology]

The conventional double rail type hoist with auxiliary hoist is
As shown in FIG. 7 and FIG. 7, the main hoist body 3 and the auxiliary hoist body 3' are placed on a trolley frame 16 having two trolley outer frames 4, 5. mounting bracket 17 fixed to
The main hoist main body 3 and the auxiliary hoist main body 3' are fixed with bolts using the screw holes A and A' of 17', and the two wheels 7, 8 is installed, and the 2
A trolley frame 16 is designed to run horizontally on a book rail 18.

[Problem that the invention attempts to solve]

In the conventional double rail type hoist with auxiliary hoist, when an eccentric load is applied to the main hoist main body 3, the load is directly received by the trolley outer frames 4 and 5, so that the wheels 8 are in close contact with the rails 18. There was a problem in that one of the wheels 7 rose above the rail 18, causing the vehicle to travel sideways on three wheels.

In addition, if the upper surface of the rail 18 is uneven or deflected when traveling on the two rails 18, torsional stress will be generated in the main hoist or the main hoist 3 or 3'. The problem was that it required a large structure and sufficient dimensional accuracy.

For this reason, as a structure that satisfies the above-mentioned requirements, a welded structure consisting of a combination of planar steel plates is adopted, resulting in decreased productivity and ease of assembly and increased cost.

[Means for solving problems]

The present invention was made to solve this problem, and the main hoist main body 3 is mounted on a trolley frame 16 having two trolley outer frames 4 and 5 and connecting plates 9 attached to both ends of the trolley frame 16. The auxiliary hoist main body 3' is placed on the trolley, and two wheels 7 and 8 are attached to the trolley outer frames 4 and 5, respectively, and the trolley frame 16 runs on the two rails 18 via the wheels 7 and 8. In a double-rail type hoist with auxiliary hoisting which is configured to travel sideways, one connecting shaft 14', 14 is passed through the trolley outer frames 4, 5 at diagonal positions, respectively. Aligning metal fittings 13', 13 are rotatably attached to the trolley outer frames 4, 5 through gaps b, and the respective aligning metal fittings 13 are attached to the diagonal sides of the main hoist body 3 and auxiliary hoist body 3'. ,1
3', the opposite sides thereof are directly fixed to the corresponding trolley outer frames 4 and 5, and the connecting plate 9 is rotatably attached to both ends of the trolley outer frames 4 and 5. This is a double rail type hoist with auxiliary hoisting.

[Effect]

According to this double rail type hoist with auxiliary hoisting, when an eccentric load or a lateral pulling load is applied to the main hoist main body 3, the alignment fitting 13 rotates around the connecting shaft 14' and its adjustment is performed. It is possible. Adjustment can be made in the same way even when an eccentric load or a transverse load is applied to the main hoist body 3.

In addition, although the hoist moves horizontally on the two rails 18 via the wheels 7 and 8, even if the upper surface of the rail 18 is uneven or bent, the main hoist or the main hoist body 3 or 3' The wheels can follow changes in the rail 18 and move laterally without generating torsional stress. That is, when one of the wheels 7 or 8 is located in a changing part of the rail 18, the trolley outer frame 4 or 5 thereof is inclined with respect to the other trolley outer frame 5 or 4, but the main hoist main body 3 Alternatively, in the auxiliary hoist main body 3', the connecting shaft 14 or 14' and the alignment fitting 13 or 13' rotate to absorb the tilted state, or are displaced to match the tilted state, and the connecting plate 9 Since the trolley rotates relative to the outer frames 4 and 5, no torsional stress is generated in the main or auxiliary hoist body 3 or 3', and the wheels 7 or 8 are rotated relative to the main or auxiliary hoist body 3 or 3. ′ load can be equally distributed.

Moreover, the connecting shafts 1 are attached to the trolley outer frames 4 and 5, respectively.
4, 14' are passed through, the alignment fittings 13, 13' are rotatably attached to the connecting shafts 14, 14', and the main hoist/auxiliary hoist bodies 3, 3' are attached to this. It is highly productive.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5. The main winding wire rope 1 suspends the main winding pulley 2 and can be freely wound around the main hoist main body 3 so as to raise and lower the main winding pulley 2. The auxiliary winding wire rope 1' suspends the auxiliary winding pulley 2' and can be freely wound around the auxiliary winding hoist main body 3' so as to raise and lower the auxiliary winding pulley 2'. The trolley outer frames 4 and 5 each have a traverse motor 6.
is installed. This traverse motor 6 rotates drive wheels 7 attached to the trolley outer frames 4, 5. The driven wheels 8 are not connected to the traversing motor 6, but are attached to the trolley outer frames 4, 5 on the side opposite to the driving wheels 7. Trolley outer frame 4, 5
Connecting plates 9 are rotatably attached to both ends of the trolley frame 16 with bolts 10 to form a trolley frame 16. Therefore, the trolley 16 has four wheels and two rails 18.
It has become rampant.

The main hoist body 3 and the auxiliary hoist body 3' are placed on a trolley frame 16. The specific structure will be explained. A mounting bracket 17 having a screw hole A is fixed to the trolley outer frame 4 in a portion on which the main hoist main body 3 is placed. One connecting shaft 14 passes through the trolley outer frame 5 in the portion where the main hoist main body 3 is placed, and this connecting shaft 14
An alignment fitting 13 having a screw hole B is rotatably attached to the trolley outer frame 5 through gaps a and b. The split pin 15 is attached to a portion protruding from the alignment fitting 13 to prevent the connecting shaft 14 from coming off. The main hoist main body 3 is placed on the mounting fittings 17 and the alignment fittings 13, and is fixed by screwing bolts 12 into the respective screw holes A and B. A connecting shaft 14' passes through the trolley outer frame 4 in the portion where the auxiliary hoist main body 3' is placed, and an alignment fitting 13' having a screw hole B' is attached to the connecting shaft 14'. It is rotatably attached to the outer frame 4 through a gap. The split pin 15' is attached to a portion protruding from the alignment fitting 13' to prevent the connecting shaft 14' from coming off. A mounting bracket 17' having a screw hole A' is fixed to a portion of the trolley outer frame 5 on which the auxiliary hoist main body 3' is placed. The auxiliary hoist main body 3' is placed on the aligning metal fitting 13' and the mounting metal fitting 17', and is fixed by screwing bolts into the respective screw holes A and B. Therefore, the alignment fittings 13 and 1
3' and the connecting shafts 14 and 14' are located diagonally to the main hoist body 3 and the auxiliary hoist body 3'. In other words, trolley outer frames 4 and 5
Only one aligning metal fitting 13 is located in each of the positions.

According to such a double rail type hoist with auxiliary hoisting, when an eccentric load or a lateral pulling load is applied to the main hoist main body 3, the alignment fitting 13 rotates around the connecting shaft 14' to adjust the adjustment. is possible. Adjustment can be made in the same way even when an eccentric load or a lateral pulling load is applied to the auxiliary hoist main body 3.

In addition, although the hoist moves horizontally on the two rails 18 via the wheels 7 and 8, even if the upper surface of the rail 18 is uneven or bent, the main hoist or auxiliary hoist main body 3 or 3' The wheels can follow changes in the rail 18 and move laterally without generating torsional stress. That is, when one of the wheels 7 or 8 is located in a changing part of the rail 18 as shown in FIG. However, the main hoist main body 3 or the auxiliary hoist main body 3' is connected to the connecting shaft 1.
4 or 14' and the alignment fittings 13 or 13' rotate to absorb the tilted state or are displaced to match the tilted state, and the connecting plate 9 rotates relative to the trolley outer frames 4 and 5. Therefore, no torsional stress is generated in the main hoist body 3 or 3', and the load of the main hoist body 3 or 3' can be equally distributed by the wheels 7 or 8. can.

Moreover, the connecting shafts 1 are attached to the trolley outer frames 4 and 5, respectively.
4, 14' are passed through, the alignment fittings 13, 13' are rotatably attached to the connecting shafts 14, 14', and the main hoist/auxiliary hoist bodies 3, 3' are attached to this. It is highly productive.

[Effect of idea]

According to the present invention, it is possible to adjust the eccentric load, lateral pulling load, etc. of the main hoist and auxiliary hoist bodies 3, 3' with a simple structure, and also adjust the main hoist to changes in the surface of the rail 18. - It is possible to provide a double rail type hoist with auxiliary hoisting which can eliminate torsional stress of the auxiliary hoist main bodies 3, 3'.

[Brief explanation of the drawing]

Fig. 1 is a side view of the double rail type hoist with auxiliary hoist of the present invention, Fig. 2 is a plan view of the same hoist with the main hoist and auxiliary hoist main body removed, and Fig. 3 is A--A in Fig. 2. A sectional view, FIG. 4 is a plan view of FIG. 3, FIG. 5 is a side view for explaining self-alignment of the same hoist, FIG. 6 is a side view of a conventional double rail type hoist with auxiliary winding, and FIG. The figure is a plan view of the main hoist and the auxiliary hoist with the main bodies removed. 3... Main hoist main body, 3'... Auxiliary hoist main body, 4, 5... Trolley outer frame, 7, 8... Wheels, 13, 13'... Aligning metal fittings, 14, 14'...
connection axis.

Claims (1)

[Scope of utility model registration request] The main hoist body 3 and the auxiliary hoist body 3' are placed on a trolley frame 16 having two trolley outer frames 4 and 5 and connecting plates 9 attached to both ends of the trolley frame 16, and the trolley outer frame 4 , 5 have two wheels 7 and 8 attached to each, and the trolley frame 16 is traversed on two rails 18 via the wheels 7 and 8.
One connecting shaft 1 is provided on each of the trolley outer frames 4 and 5.
4', 14 are penetrated at diagonal positions, and alignment fittings 13', 13 are rotatably attached to the connecting shafts 14', 14 through gaps b with the trolley outer frames 4, 5, respectively. The diagonal sides of the winding hoist main body 3 and the auxiliary winding hoist main body 3' are attached to the respective alignment fittings 13', 13, and the opposite sides are directly fixed to the corresponding trolley outer frames 4, 5, respectively, A double rail type hoist with auxiliary hoisting, characterized in that the connecting plate 9 is rotatably attached to both ends of the trolley outer frames 4, 5.