JP2010018198A - Engine inclining device for monorail conveying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To attain miniaturization of a machine body and enhancement of durability in an engine inclining device for a monorail conveying machine in which an engine is inclined in a horizontal direction according to the angle that an inclination sensor detects on the inclination of a sharply inclined place. <P>SOLUTION: An electric cylinder for connecting a base frame 6 to an engine placement base 10 turned in a machine body advancement direction making an input shaft of a speed reducer as a turning center is expanded/contracted by the angle that the inclination sensor detects on the inclination of the sharp inclined place monorail. Thereby, the engine 1 is made approached to a horizontal direction, the engine placement base is turned making an input shaft of the speed reducer as a center, and a V belt is wound from an engine output shaft puller to a speed reducer input shaft pulley to transmit motive power. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, it is easy to correct the inclination of the engine in the advancing direction of the aircraft so that the inclination angle of a single rail transporter traveling on a rail installed on an inclined ground is detected by an inclination sensor and the engine usage limit is not exceeded. The present invention relates to an engine tilting device.

An apparatus for inclining an engine so as not to exceed the use limit of the engine according to the inclination of the rail has an advantage that it can travel on a rail installed on a steep slope within the use limit of the engine, and therefore, Japanese Patent Laying-Open No. 2008-126778 As described in the official gazette, it is practically used as an engine tilting device for a single rail transporter that travels on a rail installed on a steep slope.
The practical tilting device has a structure in which a bearing is provided inside the engine output shaft pulley in order to facilitate inspection of the centrifugal clutch and the belt with the engine output shaft as a rotation center. For this reason, the engine output shaft pulley is inevitably tensioned by the belt in an overhang state, and the vibration load of the engine is supported by this bearing and the engine output shaft. Had occurred.
Furthermore, the electric cylinder receives a force due to a large momentary load fluctuation that occurs when the engine is started, stopped, and engaged / disengaged, and there is a problem in durability of the electric cylinder.
In addition, since only the engine rotates in the direction of travel of the aircraft, there must be enough space between the battery and the oil tank placed behind the engine so that the engine does not interfere with the battery when the engine is tilted backward. There was a drawback that it became longer in the front-rear direction.

The present invention is proposed as a solution to that drawback.
In other words, an engine mounting base that rotates in the direction of travel of the aircraft is provided with the speed reducer input shaft as the center of rotation. The engine is mounted on the mounting base, and the gantry frame and the engine mounting base are connected by an electric cylinder. By extending and retracting the electric cylinder, the engine tilt is configured to approach the horizontal regardless of the tilt of the rail.
JP 2008-126778 A JP 2003-182565 A Japanese Utility Model Publication No. 7-22878 Japanese Patent No. 3932013

The problem to be solved is that the single-rail transporter traveling on the rail with respect to the inclination angle of the rail installed on the steeply inclined ground has the engine output shaft as the center of rotation in order to keep the engine horizontal. Since a large load is generated on the engine output shaft, the machine can be downsized and the load on the engine output shaft cannot be reduced.
An object of the present invention is to reduce the size of a machine by expanding and contracting an electric cylinder that connects an gantry frame and an engine mounting table whose rotation center is an input shaft of a speed reducer according to an angle at which a tilt sensor senses the inclination of a steep slope And reduce the load on the engine output shaft.

    The present invention is configured such that a belt is wound from an engine output shaft pulley to a reducer input shaft pulley to transmit power, and driving is performed by driving wheels provided on a final shaft of the reducer. The input shaft of the reducer An electric mounting system that connects the gantry frame and the engine mounting table according to the angle of the steep rail detected by the tilt sensor. Due to the expansion and contraction of the cylinder, it is rotated in the advancing direction regardless of the inclination of the rail to bring the engine closer to horizontal. Since the gantry frame and the engine mounting table are connected by an electric cylinder and the engine inclination is made closer to the horizontal regardless of the inclination of the rail by the expansion and contraction of the electric cylinder according to the inclination angle of the rail detected by the inclination sensor, Since the engine output shaft pulley can be directly provided on the engine output shaft, the most important feature is to prevent troubles due to overhang.

    The engine mounting table of this engine tilting device is characterized in that an oil tank for preventing wear of the meshing portion between the battery and the rail and the drive wheel is provided.

    Due to the inclination of the rail, the engine tilts forward with respect to the gantry frame when the aircraft tilts more than the setting, and the engine tilts backward with respect to the gantry frame when the aircraft tilts forward with more than the setting. .

  The engine tilting device for a single rail transporter according to the present invention is provided with an engine mounting table that has a speed reducer input shaft of the main body as a rotation center and is mounted with an engine. The engine mounting table is rotated in the advancing direction of the machine body, and the gantry frame and the engine mounting table are connected by an electric cylinder so that the engine inclination is horizontal. For this reason, there is no need to support the weight or vibration load of the engine with the engine output shaft, so that there is an advantage that wear of the engine output shaft and trouble of the bearing can be prevented.

  The expansion / contraction of an electric cylinder that connects the mounting base frame with the engine mounting base that is provided with the speed reducer input shaft as the center of rotation allows the engine mounting base to rotate within the allowable engine tilt limit with the speed reducer input shaft as the center of rotation. The purpose of preventing engine trouble by moving was realized without impairing the downsizing of the single rail transporter.

  FIG. 1 is a front view of an embodiment of the device of the present invention, and FIGS. 2 to 4 show the embodiment of the device of the present invention in a horizontal run (FIG. 2), an uphill run (FIG. 3), a descent It is a side view explaining the implementation method of an engine inclination apparatus in the three driving | running | working aspects of driving | running | working (FIG. 4). FIG. 5 is a flowchart showing control of the engine tilting device.

    On the gantry frame 14, a reduction gear is attached by arranging driving wheels 9 that mesh with the final shaft of the reduction gear 8 to obtain thrust. The input shaft 7 of the speed reducer 8 is supported at one end by an input shaft case 15 and is mounted on the engine via a bearing left 13 on the outer periphery of the input shaft case 15 and a bearing right 12 on the other end of the input shaft. A table 10 is provided to be rotatable in the forward direction of the machine body.

    An engine 1 is fastened in front of the engine mounting table 10, an engine output shaft pulley 3 having a centrifugal clutch 4 is provided on the engine output shaft 2, and V is provided from the engine output shaft pulley 3 to the input shaft pulley 6. The belt 5 is wound around to transmit power.

    The front of the gantry frame 14 and the bottom of the engine mounting table 10 are connected by an electric cylinder 11. The inclination of the airframe traveling on a rail on a steeply inclined ground is detected, and the expansion and contraction of the electric cylinder 11 causes the engine mounting table 10 to rotate back and forth. Move.

    A battery and a battery case are placed behind the engine 1 on the engine mounting table 10, and an oil tank is provided in the battery case.

Corresponding to the inclination of the rail, there is no change in the inter-axis distance from the engine output shaft 2 to the speed reducer input shaft 7 even if the engine mounting table 10 centering on the speed reducer input shaft 7 rotates. Power can be transmitted from the engine output shaft pulley 3 directly to the reduction gear input shaft pulley 6 by the V belt 5.
For this reason, in this Example 1, since an intermediate shaft pulley and a belt are unnecessary for an intermediate shaft, it becomes low-cost.

An operation method according to the first embodiment of the apparatus of the present invention will be described.
An engine output shaft pulley 3 with a centrifugal clutch 4 is attached to the engine 1, and power is transmitted by winding a V belt around the speed reducer input shaft pulley 6. In conjunction with the operation of the start / stop lever, the throttle wire is operated to change the engine speed. When the rotation of the engine 1 exceeds a certain level, the engine output shaft pulley 3 is rotated by the centrifugal clutch 4 and power is transmitted to the speed reducer 8. At this time, a large reaction force is applied to the engine 1 due to a momentary large load fluctuation when the power of the centrifugal clutch 4 is engaged and disengaged. This reaction force is applied to the bearing case of the reduction gear input shaft 7 via the engine mounting table 10 and Since the load is distributed to both the bearing and the electric cylinder 11, the load on the electric cylinder 11 is greatly reduced.

    A battery and a battery case are placed behind the engine 1 of the engine mounting table 10 and an oil tank is provided in the battery case. However, these rotate integrally with the engine 1 in the forward direction of the body. The gap between the engine 1 and the battery case may be a minimum space necessary for maintenance. For this reason, the overall length of the aircraft can be shortened. If the length of the body is short, even if the vertical curvature of the rail is small, the rail and the tip of the body can run without interference, and there is an advantage that the range of adaptation to the rail is widened.

In addition, the battery and the oil tank are integrated with the engine so that the battery and the oil tank are rotated so as to approach the horizontal regardless of the inclination of the rail, thereby eliminating the risk of battery leakage.
The oil tank dripping position is usually provided near the drive wheel 9, but the oil tank located behind the speed reducer input shaft is rotated so that the tank position can be changed from the dripping position regardless of the inclination of the rail. Therefore, there is no variation in the amount of oil dripping, and there is an advantage that wear of the drive wheels and rails can be prevented.

The engine mounting table 10 is detected by the rear tilt switch of the sensor box by the weight of the sensor box when the single rail transporter ascends the slope, and the aircraft body is tilted backward by about 30 degrees.
The engine mounting table 10 is held substantially horizontally by the aircraft until the aircraft is tilted by 30 degrees, but there is no problem in engine performance. When the airframe tilts beyond 30 degrees, the electric cylinder 11 contracts and the engine mounting table 10 takes a forward leaning posture, and stops leaning forward until the engine forward tilt limit switch provided on the electric cylinder 11 is activated. .

    The engine inclination limit is usually 20 to 30 degrees, and the rail inclination of the single-rail transporter is limited to about 45 degrees for safety. Therefore, the engine does not have to be held horizontally at all. What is necessary is just to set the maximum amount of rotations of an engine mounting base so that a limit may not be exceeded.

    For example, when the engine inclination limit is 30 degrees, the rotation amount of the engine mounting table may be up to 15 degrees, and if it rotates up to 15 degrees, the basic performance of the engine is not affected even when the rail inclination is maximum 45 degrees. The expansion / contraction control of the electric cylinder 11 connecting the engine mounting table 10 and the gantry frame 14 can be performed as in the flowchart shown in the flowchart of FIG.

    The engine mounting table 10 has a battery and an oil tank installed behind the engine so that the entire engine 1 can be rotated, so that no extra space is required between the engine and the battery. Can be made compact.

  Offering an inexpensive single-rail transporter using a general-purpose engine by realizing an engine tilting device for a single-rail transporter that can handle the tilt of the rail that exceeds the engine usage limit with a compact configuration with excellent durability. The purpose is to do.

It is the front view which showed the implementation method of an engine tilting apparatus. (Example 1) It is the horizontal side view which showed the implementation method of an engine tilting apparatus. (Example 1) It is the front inclination side view which showed the implementation method of an engine inclination apparatus. (Example 1) It is a back inclination side view which showed the implementation method of an engine inclination apparatus. (Example 1) It is the flowchart which showed control of engine inclination. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Engine 2 Engine output shaft 3 Engine output shaft pulley 4 Centrifugal clutch 5 V belt 6 Reducer input shaft pulley 7 Reducer input shaft 8 Reducer 9 Drive wheel 10 Engine mounting base 11 Electric cylinder 12 Bearing (right)
13 Bearing (Left)
14 Mounting frame 15 Input shaft case

Claims (3)

    A belt is wound from the engine output shaft pulley to the speed reducer input shaft pulley to transmit power, and driving is performed by driving wheels provided on the final shaft of the speed reducer. The engine mounting table that rotates in the advancing direction of the machine is installed and the engine is mounted, and the gantry frame and the engine mounting table are connected by an electric cylinder, and the engine inclination is horizontal regardless of the inclination of the rail by extending and contracting the electric cylinder. An engine tilting device for a single rail transporter, characterized in that it is configured to approach.     2. The engine tilting device according to claim 1, wherein the engine mounting table is provided with an oil tank for preventing wear of a meshing portion between the battery and the rail and the drive wheel.     By tilting the rail, the engine on the engine mounting table tilts forward with respect to the gantry frame when the aircraft tilts more than the setting, and the engine tilts backward with respect to the gantry frame when the aircraft tilts forward with more than the setting. The engine tilting device according to claim 1, wherein the engine tilting device is provided.

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