JP2001260872A - Inclined truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inclined truck easy to move quickly and stop at an accurate position and suitable for the extension of an inclined foundation having smooth travelling performance. SOLUTION: The inclined truck D which travels on the inclined foundation 1 where driving rails 2, 2 are placed outside a rack 3 and travelling rails 4, 4 are placed outside the driving rails 2, 2 comprises a driven vehicle 20 for travelling on the driving rails 2, 2, provided with a driving device K for driving a pinion gears 26 engaged with the rack 3 and connected to the center of a truck body 10 having a working plate 13 and wheels 14 for travelling on the travelling rails 4, 4 via a link device 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an incline carriage that travels on an incline mount that is being extended in an incline facility.

[0002]

2. Description of the Related Art In construction on a slope such as dam construction or tunnel excavation, an incline pedestal having support legs and rails laid on an upper surface is laid along the slope and mounted on the incline pedestal. A so-called incline facility for transporting necessary equipment and personnel by an incline cart is installed.

[0003] In order to extend this incline equipment upward on the slope, the incline carriage is moved upward to the upper end of the installed incline equipment part, and the equipment mounted on the incline carriage is used for the next step. The equipment is extended by repeating the process of extending the ink line gantry and the upward movement of the ink line trolley on the extended ink line gantry. .

Japanese Patent Application Laid-Open Publication No. Hei 7-230307 discloses a method of raising an incline truck in an incline facility. A runnable sheep cart is fixed to the tip of an installed incline facility. A method is disclosed in which the end of a wire rope wound between them is connected to a winch, and the winch is used as a drive source to move the carriage.

In Japanese Patent Application Laid-Open No. H11-256552, a protrusion is provided at a predetermined interval on a rail of an ink line stand, and a lower portion of the ink line carriage expands and contracts along the rail and engages with the protrusion. When a jack having a stopper for stopping is provided and the incline cart is lifted, the jack is extended above the slope, and the jack is contracted above the slope while the stopper is hooked on the projection. A method of moving an incline truck by using the method is disclosed.

[0006]

However, in the method of raising and lowering the incline carriage by using the winch as a drive source by using the above-mentioned sheep carriage, the crane loaded on the incline carriage is used when the next span operation is started. The sheep cart is moved forward. Therefore, each time the wire rope is loosened, the incline truck must be fixed to prevent slipping down each time.In addition, after moving and fixing the sheep truck, the wire between the sheave truck and the incline truck must be fixed. I had to do the work of tensioning the wire rope every time. Therefore,
It required a lot of time and labor, and the workload was extremely large, including the safety of workers.

[0007] Further, since the sheep carriage and the wire rope are always present in front of the incline carriage, there is a risk that the wire rope may be damaged in addition to hindering the work of extending from the incline carriage.

In addition, in the method of raising and lowering the ink line carriage using the jack, the ink line carriage moves up and down while repeating the removal of the stopper and the expansion and contraction of the jack many times. Sex was bad.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has an ink line carriage which can be easily moved and stopped on an ink line base and which is excellent in extension workability in an ink line facility which runs smoothly up and down. Is to provide.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to an ink line mount having a driving rail laid outside a rack and a running rail laid outside the driving rail. A driving unit for driving a pinion gear meshing with the rack at a central portion of a bogie main body including a work table and wheels traveling on the traveling rail. Are connected and arranged via a link device.

[0011] The incline carriage moves up and down on rails of the incline stand by rotating a pinion gear meshing with a rack of a drive vehicle connected to the carriage main body via a link device by a drive device, thereby moving the rack and the rack together. Braking is performed by the engagement of the pinion gear, and the stopped state is maintained. Rolling occurs in the running incline cart due to errors in laying the rails, etc., but the load in the direction perpendicular to the rail due to the rolling is alleviated by the parallel movement of the link device, and the drive device is Protected from rolling loads. Therefore, an unreasonable load due to undulation or the like does not occur at the meshing portion between the rack and the pinion gear, and smooth running performance is ensured.

Further, it is preferable to use a triple basket type motor for the prime mover of the driving device. From the characteristics of the prime mover, the starting current is suppressed, the power supply device and the power supply equipment can be reduced, and the starting time can be shortened to enable frequent starting, and the starting torque is kept constant. The use of long routing cables becomes possible.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 to FIG. 5 show a preferred embodiment of an ink line carriage of the present invention. An ink line carriage D traveling on an ink line stand 1 in the middle of extension in an ink line device is: It comprises a bogie main body 10 and a drive vehicle 20 connected and arranged at a central portion of the bogie main body via a link device 30.

The ink line gantry 1 is constructed of a H steel material or the like along a hill slope on a pedestal leg (not shown) which is erected at a predetermined interval on the hill slope. At the center of the upper surface of the incline mount 1, a rack 3 having teeth 3 a, 3 a directed to both outsides with the center interposed therebetween is laid,
Drive rails 2 and 2 are laid in parallel at a predetermined interval on both sides of the vehicle, and running rails 4 and 4 are laid on the outside thereof.

The bogie main body 10 in the incline bogie D
A work table 13 supported by a support post 12 is erected above a base frame 11 formed of a steel material and having substantially the same width as the width of the ink line mount 1, and the outermost side of the base frame 11. Running rails 4, 4 below the girders 11a, 11a.
Wheels 14 running on the vehicle. Work table 1
A crane truck (not shown) used at an extension work site at the forefront of the incline frame and various equipments and personnel required for extending the incline device are mounted on 3.

A sheep 15 used for raising and lowering the ink line carriage D is provided on the cross beam 17 at the front of the carriage main body 10, mainly after the completion of the ink line equipment. Further, a cable reel 16 for supplying electric power to the driving device K of the driving vehicle 20 in the incline cart D is provided at the rear portion.

A driving vehicle 20 connected to a center portion of the bogie main body 10 via a link device 30 includes a driving device K including two pairs of triple-cage motors 23 with a brake having a reduction gear 22, and a reduction gear 24. An emergency braking device B provided with a disk brake 25 and a chassis 21 supporting the driving device K and the emergency braking device B are provided. Wheels 5, 5 running on the drive rails 2, 2 are provided below.

The driving device K has a pinion gear 26 that meshes with the rack 3 in the horizontal direction at the lower end of a driving shaft 27 that hangs down from the speed reducer 22. The line truck D is run. In the normal operation, the brake of the triple basket type motor 23 is used to brake and stop the in-line cart D with the pinion gear 26.

The emergency braking device B has a pinion gear 29 meshing with the rack 3 at the lower end of a drive shaft 28 hanging down from the speed reducer 24, and the disc brake 25 provided at the tip of the rotation shaft of the speed reducer 24 operates. As a result, braking is performed by the pinion gear 28 via the speed reducer 24.

When the incline truck D exceeds the predetermined speed limit for some reason, it operates according to the detection signal,
All the brakes work together with the brake on the side of the triple basket type motor 23 to stop the traveling of the incline cart D. It also operates when the normal brake of the triple basket type motor 23 does not operate for some reason.
It has braking force to stop.

The triple-cage motor 23 used in the driving device K is a squirrel-cage induction motor disclosed in Japanese Patent Application Laid-Open No. 6-205570, and has a current value in a range from starting to intermediate operation to rated operation. To reduce the need for power supplies and wiring more than necessary, reduce the amount of heat generated, and keep the torque almost constant in all areas, shortening the startup time and enabling frequent startup so,
It has the characteristic of being efficient.

Therefore, by adopting the present invention in the in-line cart D which receives power supply from the base end of the in-line device by using a cable, even when the cable is routed for a long distance, compared with the case where a normal motor is used. Thus, the cable reel 16 is downsized.

The link device 30 for connecting the drive vehicle 20 and the bogie main body 10 includes a pair of connection plates 32 on each of two connection protrusions 31 protruding from the tip of the chassis 21 of the drive vehicle 20. , 32 are rotatably secured to the shaft pins 33, 33, and the other ends of the connecting plates 32, 32 are attached to the ends of metal hardware 34 having a U-shape in a plane.
A bogie that pivotally stops and forms a four-bar mechanism with opposing joints having the same size, and projects rearward from the center of the cross beam 17 bridged over the front of the bogie body 10 at the center of the hardware 34 It is constituted by being pivotally mounted on a connection projection 36 on the side of the main body 10 by a connection pin 37.

The bogie body D during running is accompanied by lateral sway due to an error in laying the driving rail 2 and the running rail 4 and an error in mounting the wheels 14 and 29. If an unreasonable load due to twisting or the like is generated in the meshing portion between the rack 3 and the pinion gear 26 due to the rolling, the pinion gear 26
An accident involving difficult repairs such as loss of the motor or damage to the drive motor 23 is caused.

In the incline cart D of the present invention, the cart main body 10 and the drive car 20 having the drive device K are provided independently, and the drive car 20 is disposed at the center of the cart main body 10 so that the link device 30 is connected. And the rails 2 and 4 generated by the rolling of the bogie main body 10 are affected by the load in the orthogonal direction by the link device 3.
It is relaxed by the parallel movement of the opposing nodes at zero. The bogie main body 10 and the driving vehicle 20 travel comfortably on the traveling rail and the driving rail, respectively, and the driving device K is protected from the rolling load of the bogie main body 10. Therefore, since an unreasonable load is not applied to the meshing portion between the rack 3 and the pinion gear 26, smooth running without trouble is ensured.

In the incline truck D of the present embodiment configured as described above, the driving device K of the driving vehicle 20
The drive vehicle 20 travels on the drive rail 2 while the power supply cable (not shown) is wound up by the cable reel 16 while the pinion gear 26 meshing with the rack 3 is rotated. Travels on the travel rail 4.

Since the vehicle is self-propelled by electric power, it can be moved up and down quickly and smoothly, and braking and stopping are maintained by meshing the rack 3 with the pinion gears 26 and 29. No action required.

Further, since the triple cage type motor 23 is used as the prime mover of the driving device K, the equipment such as the power supply cable and the mounted cable reel 16 becomes smaller due to its characteristics, and the use of a cable having a more economical size than the conventional one is used. Is possible. In addition, since frequent start-up can be performed, it is possible to stop the carriage at an accurate position by moving the ink line carriage D by repeating driving.

Further, unlike the related art, it is not necessary to install a sheep carriage in front of the incline carriage, so that the incline carriage D can be moved to the forefront of the extending incline carriage 1. Therefore, work can be performed without worrying about damage to peripheral devices, and the work range in one movement is widened, so that work efficiency is high.

[0031]

The present invention is embodied in the form described above and has the following effects.

Since the pinion gear meshing with the rack is driven and driven on the ink line base, the ascent / descent movement is speeded up, and a reliable braking and stopping at an accurate position can be performed. The conventional complicated work involved in fixing and moving the incline cart is significantly reduced, and the work can be made more efficient.

In addition, since the driving vehicle provided with the driving device is arranged at the center of the bogie main body and connected via the link device,
An unreasonable load is not generated at the meshing portion between the rack and the pinion gear due to the roll during running, and the driving device can be smoothly operated with few failures.

Further, since a triple cage type motor is used as the prime mover of the driving device, unnecessary use of power supply equipment and power supply cables becomes unnecessary, and the cable used is reduced in size, so that the length of the installed cable can be extended. As a result, the activities of the incline cart become more efficient. Further, since a small movement can be repeated in a short time, it can be stopped at an accurate position.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an outline of an embodiment of an incline cart of the present invention.

FIG. 2 is a plan view showing an outline of a state where upper equipment of the incline cart of FIG. 1 is removed.

FIG. 3 is an enlarged sectional view showing the direction of arrow X in FIG. 2;

FIG. 4 is an enlarged sectional view showing the direction of arrow Y in FIG. 2;

FIG. 5 is a cross-sectional view illustrating a link device in the incline cart according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Incline stand, 2 driving rails, 3 racks, 4 running rails, 10 bogie main body, 13 workbench, 14 wheels, 20 driving cars, 23 triple basket type motor, 26 pinion gear, 30 link device,

Claims (2)

[Claims] 1. An incline truck that travels on an incline rack having a drive rail laid outside a rack and a travel rail laid outside the drive rail. In a central portion of a bogie main body having wheels for traveling, a driving device for driving a pinion gear meshing with the rack is provided, and a driving vehicle traveling on the driving rail is connected via a link device and arranged. An incline cart characterized by the following. 2. The carriage according to claim 1, wherein a triple cage type motor is used as a motor of the driving device.