JP2519038Y2 - Guide device for traveling rail transfer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a guide device for a traveling device, particularly a traveling rail used when a traveling device such as a traveling crane or a parent-child truck is transferred onto another traveling rail. The present invention relates to a transfer guide device.

(Prior Art) When reconstructing a crane, generally, the crane is temporarily placed on the rail of the traverser for reconstructing from one building side and then transported to the other building for reconstructing. In this case, when the crane is placed on the traverser or, conversely, is sent from the traverser to the building on the sub-building side, the building-side traveling rail and the traverser-side rail need to be reliably aligned.

Conventionally, the position of a traverser for building replacement is stopped by electrical control within an error range of about ± 10 mm from the target position, and after the traverser's traveling brake is released, a mechanical positioning device provided on the traverser and the building side. The final alignment between both rails is done at.

(Problems to be Solved by the Invention) Conventionally, in crane building replacement, a fixed position stopping operation of the traverser by electric control and a final positioning operation of the traverser by a mechanical positioning device are performed.
In order to transfer the crane stably with this method, it is necessary to adjust the final alignment accuracy between rails to 1 mm or less.
It was a time-consuming task. Therefore, looking at the ratio of the time required for alignment and the operation time of the traverser required for crane building replacement, the mechanical positioning time occupies about half, and the working time is reduced. The positioning of the traverser, especially the traveling position of the traverser with the crane mounted, requires a positioning device capable of exerting a large force, and the device itself is also a large scale. Furthermore, the mounting of mechanical positioning devices installed in the building and traverser requires high precision.

The present invention does not require severe positioning accuracy between rails when changing cranes, etc., and is a normal rail stop position accuracy (about ± 10 mm) for reliable and easy rail-to-rail transfer. It is to provide a guide device.

(Means for Solving the Problems) A guide device for traveling rail transfer according to the present invention has a pair of guide rollers facing both sides of the traveling rail near a wheel of the traveling device and the guide roller at a lower end. And a pair of guide levers provided swingably on the traveling device, and a guide roller pressing device provided on the guide levers for biasing the guide levers to rotate in a direction to narrow the interval between the guide rollers. A guide roller expanding device provided on the guide lever and expanding the guide roller against the guide roller pressing device; and a guide roller expanding device provided on the traveling device and abutting on the guide lever. A pair of guide rollers, and a stopper that regulates a distance between the guide rollers so that the guide rollers do not contact the traveling rail at the same time. The traveling device is configured to be laterally shifted with respect to the traveling rail by a reaction force that makes a pressing contact with the traveling rail.

(Embodiment) Next, the present invention will be described by way of an embodiment with reference to the drawings.

The following embodiment is an example of a crane traveling on a rail as a traveling device, but the present invention is not limited to such a crane as a matter of course. 1 is a schematic view of a traveling rail transfer guide device according to an embodiment of the present invention as seen from the front side in the traveling direction of a crane, and FIG. 2 is a side view of FIG. As shown in FIG. 5, a pair of guide devices 20 are provided on one side of the crane saddle 12 so as to be located in the front and rear portions of the crane 17 near the traveling wheels 7 and 11. Explaining the front side of the traveling direction, the front traveling wheel 7
A pair of guide levers 2, 2'is pivotally supported via a pin 13 on a crane saddle 12 having (not shown in FIG. 1), and the tread surface of the traveling rail 6 of the crane is provided at the lower end of each guide lever 2, 2 '. A pair of guide rollers 1, 1 ′, which horizontally face each other and roll by contact with the rail 6, are pivotally supported. The upper end of each guide lever 2, 2'is connected by a cylinder device 14. In this case, a horizontally long hole 2a is formed at the upper end of one guide lever 2, and the cylinder device 14 is formed in this long hole 2a.
The tip of the piston rod 15 is connected via a pin 16. A motor cylinder 5 drives the cylinder device 14. A compression coil spring 3 for rotating the lower ends of the pair of guide levers 2 and 2'in the direction of reducing the distance between the lower ends of the closing direction is provided in the middle part near the upper ends of the pair of guide levers 2 and 2 '. Further, a stopper 4 is attached to the crane saddle 12 in the vicinity of the lower ends of the pair of guide levers 2 and 2'to contact the guide levers 2 and 2'and directly receive the closing force of the lower ends of the guide levers by the compression coil spring 3. There is. The stopper 4 regulates the distance between the guide rollers 1, 1 '. The crane 17 on the rear side in the traveling direction has substantially the same configuration as described above.

With this configuration, the pressing force at the lower end of the guide levers 2, 2'provided by the compression coil spring 3 is received by the stopper 4 on the crane saddle 12 side, and when the vehicle travels directly on the traveling rail, the guide rollers 1, 1 '. ′ And the traveling rail 6 have a certain gap, and the clamping force of the guide rollers 1, 1 ′ by the force of the coil spring 3 does not act on the traveling rail 6. The pressing force of the compression coil spring 3 acting on the guide rollers 1, 1'is set to overcome the lateral force of the guide rollers 1, 1'generated when the crane is skewed, and the wheels 7 of the stationary crane are set. It does not have the power to slip 11,11. Therefore, during normal operation of the crane, the distance between the traveling rail 6 and the guide rollers 1, 1'is always constant (a + b =
It is kept about 2 mm). When the clearance between the guide rollers 1, 1'and the traveling rail 6 is a = b, the relationship between the traveling wheels 7 of the crane and the traveling rail 6 is c = d = about 15 mm as shown in FIG.
Is set to.

Next, the rail transfer operation when the crane is moved from the building side rail to the traverser side rail at the time of changing the crane will be described with reference to FIGS. 4 to 6.

(A). First, in order to move the crane 17 between buildings, move the traverser 8 along the traverser traveling rail 18,
The traverser-side rail 9 and the building-side traveling rail 10 are aligned with a normal traverser stop accuracy that allows the crane to be transferred, for example, within an error range of about ± 10 mm or less.

(B). After fixing the traverser 8 in this state, the crane 17 is caused to travel to the side of the traverser 8 and is temporarily stopped just before the front traveling wheel 7 of the crane is transferred to the rail 9 on the traverser 8.

(C). The motor cylinder 5 of the cylinder device 14 of the traveling rail transfer guide device 20 on the front traveling wheel 7 side is driven to rotate the guide levers 2, 2 against the compression coil spring 3 to guide the guide rollers 1, 1 '. Increase the space between. (The expansion amount at this time is not less than the dimension c + d in FIG. 3) (d). In this state, the front traveling wheels 7 of the crane 17 and the front guide rollers 1, 1'are transferred from the building side traveling rail 10 to the traverser side rail 9. (Note that the relationship between the traveling rails 10 and the traveling wheels 7 before expanding the guide roller spacing is almost as shown in FIG. 3, and the error between the traverser side rail 9 and the building side traveling rail 10 is ± 10 mm. It is possible to transfer wheels sufficiently if the following conditions are met.) (E). When the guide rollers 1,1 'are completely transferred, the motor cylinder 5 is reversely driven, and the pressing force of the compression coil spring 3 is applied to the guide rollers 1,1'. Even when the motor cylinder 5 is driven in the reverse direction, the piston rod 15 of the cylinder device 14 and the upper end of the guide lever 2 are connected through the elongated hole 2a, so that the extension force of the piston rod 15 is applied to the guide levers 2, 2 '. Without action, the motor cylinder 5 is operated in this range. When the traveling wheels 7 are transferred in the state where there is a misalignment between the traverser side rail 9 and the building side traveling rail 10, both guide levers 2 and 2'are driven by the reverse rotation of the motor cylinder 5. Although it tries to rotate about the fulcrum pin 13 as a fulcrum in the direction of narrowing the space, one guide lever 2 comes into contact with the stopper 4 to keep a gap between the guide roller 1 and the traverser side rail 9, and the other one. As shown in FIG. 4, since the guide lever 1'of the lower end abuts the guide roller 1'at the lower end and the rail 9 on the traverser side before contacting the opposed stopper 4, a gap is formed between the guide lever 2'and the stopper 4.

(F). When traveling further, the traverser 8 itself is fixed and the traverser side rail 9 does not move. Therefore, this pressure contact is made by the reaction force of the pressure contact force between the traverser side rail 9 and the guide roller 1 ′ due to the spring force of the compression coil spring 3. As a fulcrum, the crane saddle 12 and the guide levers 2, 2'as a whole are gradually shifted to the right in FIG. 4, and the front portion of the crane is biased toward the rail shift direction.

(G). Next, the guide rollers 1, 1 ′ (or the rear traveling wheels when the guide rollers 1, 1 ′ are mounted on the side opposite to the traverser 8 from the rear traveling wheels 11), just before the rail 9 is transferred to the traverser side rail 9, Stop 17 once.

(H). The motor cylinder 5 of the guide device 20 for moving the traveling rail on the rear traveling wheel 11 side is driven to guide the guide rollers 1,
Expand the space between 1 '.

(I). In this state, the rear traveling wheels 11 of the crane 17 and the rear guide rollers 1, 1'are transferred from the building side traveling rail 10 to the traverser side traveling rail 9.

(J). When the rear traveling wheels 11 have completed transfer, the motor cylinder 5 is driven in reverse, and the pressing force of the compression coil spring 3 is applied to the guide rollers 1, 1 '. The guide rollers 1, 1'of the rear transfer guide device 20 are also the front guide rollers.
Similar to 1,1 ', the state is as shown in FIG.

(K). In that state, mount the crane 17 on the traverser side rail 9
By traveling upward, the core of the traveling wheel 7 approaches the core of the traverser side rail 9 by the spring force of the compression coil spring 3, and the state shown in FIG. 1 is obtained.

(L). After the transfer to the traverser 8 is completed, the traverser is moved and stopped at another building position, and the crane is moved from the traverser to the building side in the same manner.

(Effect of the Invention) As described above, according to the present invention, the misalignment of the rail during the rail transfer of the traveling device such as a crane is absorbed by the lateral movement of the traveling device by the guide rollers on the side of the rail, and thus the traveling device. Misalignment of the rails is allowed within the range where the wheels can be transferred, which eliminates the need for high-precision positioning between rails after the traverser has stopped, which makes it easy and reliable to transfer between traveling rails of a crane or parent-child truck. It is possible to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a front view of a traveling rail transfer guide device according to an embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 shows a relationship between traveling wheels and traveling rails of a crane during normal traveling. FIG. 4 is a front view of the embodiment of the present invention when the rail misalignment is transferred, and FIGS. 5 and 6 are the relationship between the crane on the building-side traveling rail and the traverser for rebuilding. FIG. 4 is a top view and a side view showing FIG. 1,1 '... guide roller, 2,2' ... guide lever, 3 ...
… Compression coil spring, 4 …… Stopper, 6 …… Traveling rail, 7,11 …… Crane wheel, 8 …… Traverser, 9 ……
Traverser side rail, 10 …… travel rail, 14 …… cylinder device, 17 …… crane.

Claims (1)

(57) [Scope of utility model registration request] 1. A pair of guide rollers facing both sides of a traveling rail at a position near a wheel of a traveling device, and a pair of guide rollers provided at a lower end thereof and swingably provided on the traveling device. And a guide roller pressing device that is provided on the guide lever and that biases the guide lever to rotate in a direction that narrows the gap between the guide rollers, and the guide roller that is provided on the guide lever. A guide roller expanding device that expands against a pressing device, and the guide that is provided in the traveling device and that contacts the guide lever so that the pair of guide rollers do not simultaneously contact the traveling rail. A stopper that regulates the distance between the rollers, and the traveling device is configured so that the traveling device is acted upon by a reaction force generated by the pressure contact between one of the pair of guide rollers and the traveling rail. Guide device for Noriutsuri running rail, characterized in that it is shifted laterally against.