JP4671471B2 - On-orbit work cart - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a technique related to the configuration of an on-orbit work carriage that travels on a train track after the last train has passed to transport workers, transport materials, and look around the track.
[0002]
[Prior art]
Conventionally, a technique related to an on-orbit work carriage has been publicly known. For example, the technique is described in Japanese Patent Application Laid-Open No. 10-288231 and Japanese Patent Application Laid-Open No. 10-264810.
[0003]
[Problems to be solved by the invention]
However, in the conventional on-orbit work carriage, the engine is arranged at the rear and the seat is placed directly on the main frame, so that the position of the seat is too low and places a burden on the operator when getting on and off. It will be. In addition, when running while looking at the position irradiated by the front illumination lamp in a half-waist state without sitting on the seat, if the seat is too low, the half-waist state is prone to fatigue, as in the past. It is. In addition, there is a case where the work of the work truck on the track is stopped, the engine is driven, the dynamo is rotated, and the work is performed while irradiating the work place with the front illumination light. The dynamo also stopped rotating and could not irradiate the work area for a long time.
[0004]
Also, in conventional on-orbit work carts, when switching the front-rear direction, it is necessary to lift the heavy on-orbit work cart body, and if it is necessary to quickly finish work, if it takes too much time to change direction, It is dangerous because it needs to come into contact with the train that runs from According to the present invention, an actuator is provided at the center in the front-rear direction of the on-orbit work carriage so that the actuator can be easily rotated by one person by pressing the actuator installed on the left and right tracks by the actuator. It is composed.
The present invention solves such problems of the prior art.
[0005]
[Means for Solving the Problems]
The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.
[0006]
In an on-orbit work carriage that operates while driving on a railway track (2L, 2R) with an engine (E) , the engine (E) is placed under the seat on which the operator is seated, and the engine (E) side A belt tension type travel clutch mechanism (B) is provided at the left and right central part of the vehicle body, an input pulley (38) constituting the travel clutch mechanism (B), and a counter shaft (K) for supporting the input pulley (38) ), The chain (28/29) is wound from the sprocket (21/24) on the countershaft (K) toward the sprocket (20/26) on the axle (33/34), and the input pulley (38) and a lower counter shaft (K), under the body frame of said track on the work carriage (3), provided the actuator (4) and turning the support plate (5), the turning supporting The plate (5) is disposed at the center of gravity position before and after the work carriage on the track, the actuator (4) is disposed at the center of gravity position on the left and right on the direction change support plate (5), and the actuator (4) is in the vertical direction. The direction change support plate (5) is installed on left and right tracks, and usually the actuator (4) is reduced so that the direction change support plate (5) 2R), the actuator (4) is extended and the direction change support plate (5) is brought into contact with the track (2L · 2R) when the traveling direction of the work carriage on the track is changed. In this case, the work platform on the track is entirely supported by the direction change support plate (5), the actuator (4) is further extended, and the direction change support plate (5) is attached to four wheels ( 1L ・ 1R ・ 11L ・ 11R) And lifted on work vehicles, when the operator rotates the orbital work vehicles, in which a rotatable back and forth about said actuator (4).
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described.
[0008]
1 is an overall side view of the on-orbit work carriage of the present invention, FIG. 2 is an overall plan view of the on-orbit work carriage of the present invention, FIG. 3 is a rear view of the on-orbit work carriage of the present invention, and FIG. 5 is a detailed view of the traveling clutch mechanism of the on-orbit work carriage, FIG. 5 is a detailed view of the braking mechanism of the on-orbit work carriage of the present invention, and FIG. FIG. 7 is a rear view of a state where the work truck on the track is lifted.
[0009]
An overall view of the on-orbit work carriage according to the present invention will be described with reference to FIGS. The left and right seats SL and SR are placed on the body frame 3 constituted by pipes. The machine body frame 3 includes a rectangular lower horizontal frame 3e, central left and right frames 3c and 3d arranged long in the front and rear of the center, and seat support pipes 3a and 3b that support the seats SL and SR at the left and right ends. It is comprised by. The seats SL and SR are placed between the left and right seat support pipes 3a and 3b and the central left and right frames 3c and 3d.
[0010]
The engine E is arranged under the right seat SR in the lower part of the seat S surrounded by the body frame 3 and formed by the central left and right frames 3c and 3d and the lower horizontal frame 3e. A battery is arranged below. An output shaft protruding from the engine E is arranged between the left and right seats SL and SR between the engine E arranged in the left-right direction , and the centrifugal rotation speed clutch mechanism A and the belt tension type are arranged. The traveling clutch mechanism B is arranged. On the crankshaft C of the engine E, double belt pulleys 16 and 17 and an output pulley 15 driven via a centrifugal rotational speed clutch mechanism A are arranged.
[0011]
A belt is wound around a dynamo D from one pulley 16 of the double belt pulleys 16 and 17. Further, the other pulley 17 of the double belt pulleys 16 and 17 is wound around two belts between the output pulley 15 and selects and tensions one of the two belt tension pulleys. A two-belt pulley configuration is preliminarily provided for use in configuring a two-speed belt tension transmission mechanism. Then, the clutch belt 30 is gently wound from the output pulley 15 toward the input pulley 38 on the counter shaft K, and the clutch belt 30 is tensioned / relaxed by the clutch tension pulley 31 to thereby reduce the belt tension. This constitutes a traveling clutch mechanism B of the type.
[0012]
As described above , the centrifugal rotation speed clutch mechanism A is disposed between the crankshaft C and the dynamo D, and further, the centrifugal rotation clutch mechanism A between the crankshaft C and the belt tension type traveling clutch mechanism (B) is disposed. A rotational speed clutch mechanism A of the type is also interposed. As a result, when the rotational speed of the engine E is low, the centrifugal rotational speed clutch mechanism A is in a disconnected state, but when the rotational speed exceeds a predetermined rotational speed, the centrifugal rotational speed clutch mechanism A is connected. To do. However, since the dynamo D cannot generate a predetermined power unless the engine E has a predetermined rotation speed, the lighting operation for irradiating the work site with the engine E at a predetermined rotation speed is performed on the track. It is possible to do it when the cart is stopped . In addition to the centrifugal rotational speed clutch mechanism A, a belt tension type traveling clutch mechanism B is provided in the traveling power transmission system . The belt tension type traveling clutch mechanism B can stop the traveling drive even when the rotational speed of the engine E is high.
[0013]
On the counter shaft K of the input pulley 38, and the sprocket 21, 24 is fixed, winding the chain 28, 29 from the sprocket 21, 24 toward the sprocket 20, 26 on the axles 33, 34 Has been. The chains 28 and 29 are also provided with a chain tension mechanism that absorbs chain elongation. Brake discs 19 and 25 are fixedly mounted on the axles 33 and 34, and the brake discs 19 and 25 are clamped by a clamping mechanism that is acted upon by the depression pressure of the brake pedal. The mechanism is also used. Further, on the left and right sides of the axle 33, front wheels 1L and 1R and rear wheels 11L and 11R that are brought into contact with the tracks 2L and 2R are fixed.
[0014]
Further, a body holding handle 8 is provided at the front end of the body frame 3, and a front illumination lamp 6 is provided at the center of the body holding handle 8. A patrol light 7 is fixed at the rear of the central left and right frames 3c and 3d and immediately after the seats SL and SR, so that the position of the work carriage on the track at the time of work is informed to others. . A brake pedal 9 is provided at the front portion of the seat SR, and harness wires 35 and 35 are arranged so as to hold the front and rear brake discs 19 and 25 when the brake pedal 9 is depressed.
[0015]
4 shows the clutch lever 10 of the belt tension type traveling clutch mechanism B, and the clutch lever 10 is erected at a position between the left and right seats SL and SR. By rotating the clutch lever 10, the clutch tension pulley 31 described above is pressed against the clutch belt 30 so that the clutch belt 30 is in a tension state, and power is transmitted from the output pulley 15 toward the input pulley 38. It is configured. A lock lever mechanism 37 that locks the clutch lever 10 in a power transmission state is pivotally supported on the upper portion of the clutch lever 10.
[0016]
Further, as shown in FIG. 5, the brake pedal 9 is also provided with a pedal lock mechanism 36. When the pedal lock mechanism 36 is locked, the brake pedal 9 is in the parking brake state, and when the operator has only stepped on, the brake pedal 9 is in the traveling brake state. Also, as shown in FIGS. 6 and 7, an actuator 4 and a direction change support plate 5 are provided below the part of the body frame 3 of the on-orbit work carriage. The conversion support plate 5 is pulled up to a position where it does not contact the tracks 2L and 2R.
[0017]
When changing the traveling direction of the on-orbit work carriage, the actuator 4 is extended, the direction change support plate 5 is brought into contact with the tracks 2L and 2R, and the on-orbit work is performed by the direction change support plate 5. It is in a state where the carriage is supported as a whole. Since the actuator 4 and the direction change support plate 5 are arranged at the center of gravity of the front, rear, left and right of the airframe, the on-orbit work carriage falls to the left and right when the airframe frame 3 is lifted by the direction change support plate 5. There is nothing. In this state, when the operator slowly rotates the on-orbit work carriage, the on-orbit work carriage can change the front and rear on the tracks 2L and 2R.
[00]
That is, in an on-track work carriage that performs work while driving on the railroad track by the engine E, the engine E is disposed below the seat S on which the operator is seated, and on the side of the engine E, below the seat S. Since the belt tension type traveling clutch mechanism B is disposed at the position of the seat S, the seat S is not so low when the operator is sitting down, so that it may become tired when traveling while looking forward with the middle waist. It's gone. Further, since the clutch lever 10 is present on the side of the seat S, an operator sitting on the seat S can easily operate the clutch lever 10.
[0019]
In addition to the belt tension type traveling clutch mechanism, the centrifugal speed clutch mechanism A is also provided on the output shaft of the engine E. Therefore, in a state where the rotational speed of the engine E is increased to some extent, When working while the dynamo D is rotated and the front illumination lamp 6 irradiates the front working place and the vehicle is stopped, the dynamo D is rotated at a high speed, and the vehicle is driven by a belt tension type travel clutch. It can be stopped by mechanism B. Even if it is impossible to completely cut off the power due to the friction of the belt tension type traveling clutch mechanism B, the work carriage on the track can be completely stopped by applying the parking brake by the brake pedal 9. It is.
[0020]
【The invention's effect】
The present invention configured as described above has the following effects.
In an on-track work carriage that operates while driving on the railway track (2L, 2R) by the engine (E) , the engine (E) is disposed under the seat on which the operator is seated. A belt tension type travel clutch mechanism (B) is provided at the left and right center of the body of the engine (E), an input pulley (38) constituting the travel clutch mechanism (B), and the input pulley (38 Counter shaft (K) that supports the chain (28/29) from the sprocket (21/24) on the counter shaft (K) toward the sprocket (20/26) on the axle (33/34). ) the wound, a lower input pulley (38) and the counter shaft (K), under the body frame of said track on the work carriage (3), an actuator (4) and turning the supporting plate (5 The direction change support plate (5) is disposed at the center of gravity position before and after the on-track work carriage, and the actuator (4) is disposed at the left and right center of gravity positions on the direction change support plate (5). The actuator (4) is disposed so as to be extendable in the vertical direction, and the direction change support plate (5) is installed on the left and right tracks. Usually, the actuator (4) is reduced to provide the direction change support plate ( 5) Pull up to a position where it does not touch the track (2L, 2R) and change the traveling direction of the work carriage on the track, extend the actuator (4) and move the direction change support plate (5) to the track. (2L · 2R), the on-orbit work carriage is supported entirely by the direction change support plate (5), the actuator (4) is further extended, and the direction change support plate (5) Lower than the four wheels (1L ・ 1R ・ 11L ・ 11R) Since the work truck on the track floats up and the operator turns the work truck on the track, the actuator 4 and the direction change support plate can be rotated around the actuator (4). 5, the operator can change the front and back direction by slowly rotating the airframe while the entire airframe of the on-orbit work carriage is lifted up.・ It is no longer necessary to change the direction of travel before and after 2R.
[Brief description of the drawings]
FIG. 1 is an overall side view of an on-orbit work carriage according to the present invention.
FIG. 2 is an overall plan view of an on-orbit work carriage according to the present invention.
FIG. 3 is a rear view of the on-orbit work carriage of the present invention.
FIG. 4 is a detailed view of a traveling clutch mechanism of the on-orbit work carriage of the present invention.
FIG. 5 is a detailed view of a brake mechanism of the on-orbit work carriage of the present invention.
6 is a side view showing a state where the on-orbit work carriage of the present invention is lifted by an actuator 4 and a direction change support plate 5. FIG.
FIG. 7 is a rear view of a state where the work truck on the track is also lifted.
[Explanation of symbols]
A Centrifugal speed clutch mechanism B Belt tension type travel clutch mechanism C Crankshaft D Dynamo E Engine K Countershaft 1L / 1R Front wheel 2L / 2R Track 3 Airframe 3 Actuator 5 Direction change support plate 6 Front light 7 Patlite 8 Body holding handle 9 Brake pedal 10 Clutch lever 11L / 11R Rear wheel

Claims (1)

In an on-orbit work carriage that operates while driving on a railway track (2L, 2R) with an engine (E) , the engine (E) is placed under the seat on which the operator is seated, and the engine (E) side A belt tension type travel clutch mechanism (B) is provided at the left and right central part of the vehicle body, an input pulley (38) constituting the travel clutch mechanism (B), and a counter shaft (K) for supporting the input pulley (38) ), The chain (28/29) is wound from the sprocket (21/24) on the countershaft (K) toward the sprocket (20/26) on the axle (33/34), and the input pulley (38) and a lower counter shaft (K), under the body frame of said track on the work carriage (3), provided the actuator (4) and turning the support plate (5), the turning supporting The plate (5) is disposed at the center of gravity position before and after the work carriage on the track, the actuator (4) is disposed at the center of gravity position on the left and right on the direction change support plate (5), and the actuator (4) is in the vertical direction. The direction change support plate (5) is installed on left and right tracks, and usually the actuator (4) is reduced so that the direction change support plate (5) 2R), the actuator (4) is extended and the direction change support plate (5) is brought into contact with the track (2L · 2R) when the traveling direction of the work carriage on the track is changed. In this case, the work platform on the track is entirely supported by the direction change support plate (5), the actuator (4) is further extended, and the direction change support plate (5) is attached to four wheels ( 1L ・ 1R ・ 11L ・ 11R) And lifted on work vehicles, when the operator rotates the orbital work vehicles, orbit work carriage, characterized in that the rotatable back and forth about said actuator (4).

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