JP4500985B2 - Incline cart - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ink line carriage that travels on an ink line base in the middle of an extension in an ink line facility.
[0002]
[Prior art]
When working on slopes, such as dam construction and tunnel excavation of tunnels, an incline carriage with support legs and rails on the upper surface is laid along the slope, and is necessary for the incline carriage mounted on this incline carriage. So-called incline equipment for carrying equipment and personnel is installed.
[0003]
In order to extend the ink line equipment to the upper part of the slope, the ink line carriage is moved up to the upper tip of the installed ink line equipment, and the next span is set using the equipment on the ink line carriage. The extension of the equipment is achieved by extending the ink line frame and repeating the process of extending the ink line frame and the upward movement of the ink line carriage on the extended ink line frame.
[0004]
As rise method Incline carriage in the ink line equipment, in Japanese Patent Application Laid-Open 9-71923 Patent Gazette, the tip of the construction already Incline facility, the travelable sheaves carriage is fixed, the sheave carriage and Incline dolly connecting the winding turning end of the winch wire rope while a method of moving the incline carriage by a winch as a driving source is disclosed.
[0005]
Japanese Patent Application Laid-Open No. 11-256552 discloses a protrusion provided at a predetermined interval on the rail of the ink line pedestal, and a stopper that extends and contracts along the rail at the lower part of the ink line trolley and engages with the protrusion. When the ink line carriage is raised, the jack is extended above the slope and the jack is contracted above the slope while the stopper is hooked on the protrusion. A method for moving a carriage is disclosed.
[0006]
[Problems to be solved by the invention]
However, in the method for elevating the ink line trolley winch as a driving source using the sheaves carriage, upon entering the work of the next span, move the sheaves carriage forward using the crane embarked in Incline cart Is. Therefore, because loosen the wire rope to the time of the move, on top must be a slide down measures to secure the each time ink line truck, after fixing to move the sheaves truck, of the sheave truck and ink line truck The work of stretching the looseness of the wire rope that occurred between them had to be done every time. Therefore, it requires a lot of time and labor, and the work load including the safety of workers is extremely large.
[0007]
In addition, since the front of the ink line truck there is always Sea Bed truck and wire rope, there is also a risk of damage to the wire rope on top that get in the way of the extended設作industry from the ink line truck [0008]
In addition, in the method of raising and lowering the ink line carriage using a jack, the ink line carriage moves up and down while repeating the stopper detachment and the expansion and contraction of the jack many times, so it takes time to move and the workability for movement is poor. It was.
[0009]
The present invention has been made in view of the above problems, and provides an ink line carriage that can be easily moved and stopped on an ink line base and has excellent extending workability in an ink line facility that smoothly moves up and down. There is.
[0010]
[Means for Solving the Problems]
The present invention, in order to solve the above problem, in the ink line truck is driven rail laying out of the rack traveling on Incline stand the running rails are laid on the outer side of the drive rail, the bogie A brake is attached to the tip of the rotary shaft of a reduction gear that hangs a drive shaft having a pinion gear horizontally engaged with the rack at a lower end of a drive vehicle that travels on the drive rail connected to the main body via a link mechanism. And a driving device connected with a triple saddle type motor, and an emergency braking device in which a disk brake is connected to the tip of a rotating shaft in a reduction gear that hangs a driving shaft having a pinion gear meshing horizontally with the rack at the lower end. It was. In normal operation, the brakes of the triple saddle type motor are used to brake and stop the ink line carriage with the pinion gear, and in an emergency, the disc brake provided at the tip of the rotating shaft of the speed reducer of the emergency braking device is activated. Thus, braking is performed with the pinion gear via the reduction gear. In particular, when the ink line carriage exceeds a predetermined speed limit for some reason, it operates according to the detection signal, and all the brakes cooperate with the brake on the triple saddle type motor side to stop the running of the ink line carriage. Also, even when the normal brake on the triple saddle motor side does not operate for some reason, the emergency braking device alone has a braking force to stop the ink line carriage.
[0011]
The incline carriage moves up and down on the rails of the incline frame by rotating a pinion gear meshing with a rack of a drive car connected to the carriage body via a link device by the drive unit. The brake is applied by meshing and the stop state is maintained. Rolling occurs due to errors in laying the rail in the running inline carriage, but the load in the direction perpendicular to the rail due to rolling is relieved by the parallel movement of the link device, and the drive device is It is preserved from the load caused by rolling. Therefore, an excessive load due to twisting or the like is not generated at the meshing portion of the rack and the pinion gear, and smooth running performance is ensured.
[0012]
In addition, it is preferable to use a triple saddle type motor as the prime mover of the drive device. From the characteristics of this prime mover, the starting current can be suppressed, the power supply device and the power supply equipment can be made smaller, the starting time can be shortened and high-frequency starting can be performed, and the starting torque can be kept constant. A long cable can be used.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of an ink line carriage according to the present invention will be described in detail with reference to the accompanying drawings.
[0014]
FIGS. 1 to 5 show a preferred embodiment of the ink line carriage of the present invention. An ink line carriage D running on the ink line carriage 1 in the middle of the ink line apparatus is a carriage main body 10. And a drive vehicle 20 connected to the central portion of the cart body via a link device 30.
[0015]
The incline pedestal 1 is constructed of H steel or the like along a slope of a mountain on a pedestal leg (not shown) erected on a slope of the mountain at a predetermined interval. At the center of the top surface of the incline cradle 1, a rack 3 with teeth 3a and 3a facing both sides across the center is laid, and driving rails 2 and 2 are parallel to each other on both sides of the rack 3 at a predetermined interval. Further, traveling rails 4 and 4 are laid on the outside thereof.
[0016]
The carriage main body 10 of the ink line carriage D is provided with a work table 13 supported by a support column 12 above a base frame 11 formed of steel material so as to be approximately the same width as the horizontal width of the ink line carriage 1. The base frame 11 includes wheels 14 and 14 that travel on the traveling rails 4 and 4 below the outermost girders 11a and 11a. The work table 13 is loaded with cranes (not shown) used at the most advanced extension work site of the incline gantry and various equipment and personnel necessary for the extension of the incline device.
[0017]
Furthermore, the crossbeam 17 of the front portion of the carriage body 10, after primarily Incline equipment is completed, sheaves 15 to be used for lifting Incline cart D is installed. Further, a cable reel 16 that supplies power to the drive device K of the drive vehicle 20 in the ink line carriage D is installed in the rear part.
[0018]
A drive vehicle 20 connected to the central portion of the carriage body 10 via a link device 30 includes a drive device K composed of a pair of triple-armed motors 23 with brakes having a speed reducer 22, and a disk brake to the speed reducer 24. 25, and a chassis 21 that supports the drive device K and the emergency brake device B, and is provided below the chassis 21 on which the emergency brake device B is supported. Wheels 5 and 5 that run on the driving rails 2 and 2 are provided.
[0019]
The drive device K has a pinion gear 26 that meshes with the rack 3 in the horizontal direction at the lower end of the drive shaft 27 that hangs down from the speed reducer 22, and the incline carriage D by the pinion gear 26 that rotates horizontally by rotating the drive shaft 27. To run. In normal operation, the ink line carriage D is braked and stopped by the pinion gear 26 using the brake of the triple saddle type motor 23.
[0020]
The emergency braking device B has a pinion gear 29 that meshes with the rack 3 at the lower end of the drive shaft 28 that hangs down from the speed reducer 24, and the disc brake 25 provided at the tip of the rotating shaft of the speed reducer 24 operates to reduce the speed. through the machine 24 is braked with the pinion gear 2 9.
[0021]
When the ink line carriage D exceeds a predetermined speed limit for some reason, it operates according to the detection signal, and all the brakes cooperate with the brake on the triple saddle motor 23 side to stop the running of the ink line carriage D. Further, it operates even when the normal brake on the triple saddle type motor 23 side does not operate for some reason, and has a braking force to stop the ink line carriage D alone.
[0022]
The triple saddle type 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 reduces a current value in a region from a start to an intermediate time through a rated operation. This eliminates the need for unnecessary power supply units and wiring, reduces the amount of heat generated, maintains the torque in the entire range almost constant, shortens the start-up time, enables frequent start-up, and increases efficiency. However, it has the characteristic that it is good.
[0023]
Therefore, by adopting the ink line carriage D that receives power supply from the base end of the ink line apparatus using a cable, the cable reel is used in comparison with the case where a normal motor is used even if the cable routing distance becomes long. 16 is miniaturized.
[0024]
The link device 30 that connects the drive vehicle 20 and the cart body 10 includes a pair of connection plates 32, 32 on each of the two connection projections 31, 31 protruding from the tip of the vehicle platform 21 of the drive vehicle 20. One end is pivotally supported by shaft pins 33 and 33, and the other end of the connecting plates 32 and 32 is pivotally fixed to the tip of a planar U-shaped metal piece 34 by shaft pins 35 and 35. Thus, the joints 36 on the side of the cart body 10 projecting backward from the center of the cross beam 17 spanning the center of the hardware 34 to the front part of the cart body 10. It is comprised by pivotally attaching to the connection pin 37 so that rotation is possible.
[0025]
The cart body D that is traveling is swayed from side to side due to laying errors of the driving rail 2 and the traveling rail 4 and mounting errors of the wheels 14 and 14 . If an unreasonable load is generated at the meshing portion of the rack 3 and the pinion gear 26 due to this rolling, an accident accompanied by a difficult repair such as a loss of the pinion gear 26 or damage to the drive motor 23 is caused.
[0026]
In the ink line carriage D of the present invention, the carriage main body 10 and the driving vehicle 20 having the driving device K are provided independently, and the driving vehicle 20 is disposed at the center of the carriage main body 10 and is connected via the link device 30. The pins 37 are connected to each other, so that the influence of the load in the direction orthogonal to the rails 2 and 4 generated by the rolling of the carriage body 10 is mitigated by the parallel movement of the opposing nodes in the link device 30. The cart body 10 and the driving vehicle 20 travel on the traveling rail and the driving rail without difficulty, and the drive device K is protected from the rolling load of the cart body 10. Accordingly, since an unreasonable load is not applied to the meshing portion of the rack 3 and the pinion gear 26, smooth running without failure is ensured.
[0027]
In the ink line carriage D of the present embodiment configured as described above, the drive device K of the drive wheel 20 is self-propelled by rotating the pinion gear 26 that meshes with the rack 3, and a power supply cable (shown in the figure). The driving vehicle 20 travels on the driving rail 2 while the bogie main body 10 travels on the traveling rail 4.
[0028]
Since it is self-propelled by electricity, it can be moved up and down quickly and smoothly, and braking and maintenance are maintained by meshing between the rack 3 and the pinion gears 26 and 29, so that the operation is reliable and complicated operations by workers are required. And not.
[0029]
In addition, since the triple cage 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 it is possible to use a cable having a more economical size than before. Yes. Further, since it can be started frequently, it can be stopped at an accurate position by repeatedly driving and moving the ink line carriage D.
[0030]
Moreover, unlike the conventional, it is not necessary to install the sheaves truck in front of Incline truck, kill is possible to move the cutting edge to incline cart D Incline frame 1 of the extension under construction. Therefore, the work can be carried out without worrying about damage to peripheral devices, and the work range in one movement is widened, so the work efficiency is good.
[0031]
【The invention's effect】
The present invention is implemented in the form as described above, and has the effects described below.
[0032]
Because the pinion gear meshing with the rack is driven on the incline gantry so that it can self-propelled, the up-and-down movement is speeded up and reliable braking and stopping at an accurate position are possible. The conventional complicated work associated with fixing and moving can be significantly reduced, and the work can be made more efficient.
[0033]
Moreover, since a driving vehicle equipped with a driving device is arranged in the central portion of the cart body and connected via a link device, an excessive load is not generated in the meshing portion of the rack and the pinion gear due to rolling while traveling, Smooth operation with few drive unit failures is possible.
[0034]
In addition, the triple motor is used as the prime mover of the drive unit, so there is no need to use more power supplies or power cables than necessary, and the size of the cables used becomes smaller, which increases the span of the installed cables and increases the ink. The efficiency of the line bogie is improved. Moreover, 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 diagram showing an outline of an embodiment of an ink line carriage according to the present invention.
FIG. 2 is a plan view showing an outline of a state where the upper equipment of the ink line carriage of FIG. 1 is removed.
3 is an enlarged cross-sectional view showing the direction of arrow X in FIG. 2;
4 is an enlarged cross-sectional view showing the direction of the arrow Y in FIG. 2;
FIG. 5 is a cross-sectional view showing a link device in the ink line carriage of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Incline stand, 2 Drive rails, 3 Racks, 4 Travel rails, 10 trolley bodies, 13 Worktables, 14 wheels, 20 Drive vehicles, 23 Triple saddle type motor, 26 Pinion gear, 30 Link device,

Claims (2)

In an ink line carriage that travels on an ink line gantry in which a driving rail is laid on the outside of the rack and a traveling rail is laid on the outside of the driving rail, the ink rail is connected to the carriage body via a link mechanism. A driving device in which a driving vehicle traveling on a driving rail is connected to a triple saddle motor with a brake at the tip of a rotating shaft in a reduction gear that hangs a driving shaft having a pinion gear meshing horizontally with the rack at a lower end; Incline bogie, characterized in that it comprises an emergency brake device which is connected with disc brakes on the tip of the rotating shaft in the reduction gear for hanging a drive shaft having a pinion gear that meshes with the rack and horizontally at the lower end. The link device connecting the drive vehicle and the cart body is fixed to each of two connection projections protruding from the tip of the drive vehicle chassis so that one end of a pair of connection plates can be rotated by a shaft pin. At the same time, the other end of the connecting plate is pivotally fixed to the front end of a U-shaped flat metal plate by a shaft pin so that the opposite nodes form a four-bar mechanism having the same dimensions, and the center of the hardware is a carriage. 2. The structure according to claim 1, wherein the carriage is pivotally attached to a connecting projection on the side of the carriage main body that protrudes rearward from the center of the cross beam spanned on the front portion of the main body. Incline trolley as described.

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