JP4035220B2 - Progression converter for vibration compaction machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a device for converting the progress of a vibration compactor such as a compactor, that is, forward, reverse, and stop.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as an apparatus for converting the progress of a vibration compactor, an apparatus that changes the phase of eccentric weights attached to two shafts perpendicular to a rolling plate is known. By the way, both conventional technologies assume an engine as a drive source of the eccentric weight, and the phase of the two eccentric weights is changed under the condition that the rotational direction of the drive input of the eccentric weight is constant. . Therefore, the shaft of the eccentric weight is rotated at different angles by means different from the rotational force of the driving source so as to change the phase of the eccentric weight.
[0003]
[Problems to be solved by the invention]
According to the present invention, by changing the phase of the eccentric weight by the driving force of the mounting shaft of the eccentric weight, a means for changing the phase different from the rotational force of the driving source, which has been required in the past, is unnecessary, and simple. It is an object to change the phase of the eccentric weight by the structure.
[0004]
[Means for Solving the Problems]
The progress converter of the vibration compacting machine according to claim 1 attaches eccentric weights to two axes perpendicular to the traveling direction of the body of the vibration compacting machine, and changes the phase of the eccentric weights to advance the body. In the travel conversion device configured to convert, the drive input of the eccentric weight can be switched between forward and reverse rotation, the eccentric weight has a semicircular cross section, and one or both of the eccentric weights are loosely fitted to a mounting shaft, and the eccentric weight is loosely been gear fixed to the mounting shaft, a stopper for regulating the phase of the eccentric weight protruding from the two locations at an angle of 90 degrees, two eccentric I by the forward and reverse switching of the drive input The weight phase is changed by 90 degrees so that the advance of the aircraft is converted into forward and stop.
[0005]
The shape of the eccentric weight is not particularly limited, and is not limited to the semicircular cross section shown in the following claims. Then, the position of the stopper is appropriately determined according to the cross-sectional shape of the eccentric weight. Further, in the mode in which the stopper is brought into contact with the side surface of the eccentric weight, an arc-shaped groove is opened on the end face of the eccentric weight, and the stopper is inserted into the groove, so that the angle of the eccentric weight is not limited by the shape of the eccentric weight. Also included is a structure that allows selection.
[0006]
As the drive input capable of forward / reverse switching, an electric motor or a hydraulic motor capable of forward / reverse switching is used as a drive source, and an engine whose rotational direction is specified as a drive source is used. A rotation direction converter may be interposed between the drive shaft and the drive shaft.
[0007]
The invention of claim 1 has a configuration in which only one eccentric weight is loosely fitted to the mounting shaft, and the inventions of claims 2 and 3 are configurations in which both eccentric weights are loosely fitted to the mounting shaft.
Further, the invention of claim 1 to claim 3 is a structure in which the stopper is brought into contact with the side surface portion of the eccentric weight, and the invention of claim 4 is a structure in which the stopper is mounted in a groove formed on the end face of the eccentric weight.
[0008]
The invention of claim 2 is loosely fitted an eccentric weight both with a semicircular cross section on the mounting shaft, the gear fixed to each mounting shaft, for regulating the phase of the eccentric weight by contact with the eccentric weight projecting from the two locations of the stopper at an angle, the phase of the two eccentric weights are changed 180 degrees I by the forward and reverse switching of the drive input, so that the progress of the aircraft are converted into forward and reverse Configure.
The invention of claim 3 is loosely fitted an eccentric weight both with a semicircular cross section on the mounting shaft, the gear fixed to each mounting shaft, for regulating the phase of the eccentric weight by contact with the eccentric weight projecting from the two locations of the stopper at an angle, the phase of the two eccentric weights are changed 90 degrees I by the forward and reverse switching of the drive input, so that the progress of the aircraft is converted to advancing and stopping Configure.
[0009]
A fourth aspect of the present invention, the arc-shaped groove in which the stopper is mounted on an end face of the eccentric weight is provided to vary the phase of the two eccentric weight I by the normal and reverse switching of the drive input, the progress of the aircraft conversion It is comprised so that it may be. In the above, the forward / reverse switching, forward / stop switching, and the like are obtained by appropriately selecting the formation angle of the arc-shaped groove formed in the eccentric weight.
[00010]
[Action]
According to the present invention, the eccentric weight loosely fitted to the mounting shaft is rotated by the rotational force transmitted from the stopper provided on the mounting shaft side. Therefore, for example, if the eccentric weight has a semicircular cross section and the stopper comes into contact with the side surface, when the drive shaft is reversed and the mounting shaft rotates in the reverse direction, the stopper moves away from the surface of the eccentric weight that was previously in contact. After rotating 180 degrees, the abutment is again brought into contact with the side surface of the eccentric weight, and the eccentric weight is rotated. And while the stopper moves 180 degrees away from the eccentric weight, the eccentric weight fixed to the mounting shaft rotates 180 degrees. Therefore, when the eccentric weight loosely fitted on the mounting shaft starts rotating, the forward rotation is used as a reference. The phases of both eccentric weights change by 180 degrees (from +90 degrees to -90 degrees). Therefore, the direction of travel of the aircraft is reversed.
[0011]
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1
Two mounting shafts 2, 2 a are attached on the rolling compaction plate 1 of the vibration compacting machine A at right angles to the traveling direction of the machine body. 3a is attached. A pulley 4 is attached to the one attachment shaft 2, and the rotational force of a motor 9 that can rotate forward and backward is inputted by a belt 10 attached to the pulley 4.
[0012]
An eccentric weight 5 having a semicircular cross section is attached to the drive-side attachment shaft 2, and a key is interposed between the attachment shaft 2 and the eccentric weight 5, and the eccentric weight 5 is fixed to the attachment shaft 2. . An eccentric weight 5a having a semicircular cross section is rotatably fitted on the driven side mounting shaft 2a, and recesses 6 and 6a serving as stopper receivers are formed on one side of the eccentric weight 5a. It is.
[0013]
As shown in FIG. 4, stoppers 7 and 7a are projected from two positions at an angle of 90 degrees with the driven gear 3a. As shown in FIG. 4, the protruding position of the stopper is eccentric when the eccentric weight 5a on the driven side is rearward when the eccentric weight 5 on the driving side is downward during forward rotation, and when the eccentric weight 5 is downward when rotating reversely. The weight 5a is also provided at a position facing downward.
[0014]
In this embodiment, when the drive input is rotated forward and the drive side mounting shaft 2 is rotated forward (shown by the arrow in FIG. 4), one stopper 7 protruding from the gear 3a is formed on the side surface of the eccentric weight 5a. And the eccentric weight 5a is rotated. At this time, the direction of the force generated by the two eccentric weights is 45 degrees up and down, and the aircraft moves forward.
[0015]
When the drive input is reversed and the drive side attachment shaft 2 is reversed (indicated by an arrow in FIG. 5), the driven side attachment shaft 2 a rotates in the opposite direction to the attachment shaft 2. At this time, the other stopper 7a protruding from the gear 3a comes into contact with one recess 6a formed on the side surface of the eccentric weight 5a, and rotates the eccentric weight 5a. From the state of FIG. 4 to the state of FIG. 5, the stopper 7 rotates 90 degrees without coming into contact with the eccentric weight 5a, and during this time, the eccentric weight 5 on the driving side rotates 90 degrees in the reverse direction. Therefore, the phase of the two eccentric weights is shifted by 90 degrees during forward rotation and reverse rotation. In the state shown in FIG. 5, the force generated by the two eccentric weights is in the vertical direction, and the aircraft stops (does not move back and forth). Only vertical vibration is performed).
[0016]
Second Embodiment of the Invention
This embodiment relates to the invention of claim 4 . As shown in FIG. 6, an arcuate groove 8 on which a stopper 7 protruding from the gear 3a is mounted is formed on the end face of the eccentric weight 5a loosely fitted on the attachment shaft 2a on the driven side. is there. The groove 8 has an arc center angle of 180 degrees, and the stopper 7 comes into contact with different edges by forward and reverse rotation of the gear 3a so that the eccentric weight 5a rotates. As shown in FIG. 6, when the stopper 7 is rotating forward, the eccentric weight 5a on the driven side is rearward when the eccentric weight 5 on the driving side is downward, and when the eccentric weight 5 is reverse, the eccentric weight 5 is downward as shown in FIG. Sometimes the eccentric weight 4a is provided at a position facing forward. The configuration other than the above is the same as that of the first embodiment.
[0017]
In this embodiment, the eccentric weights 5 and 5a change in phase by 180 degrees as shown in FIG. 6 and FIG. If the central angle of the groove is 90 degrees, the relative position of the eccentric weight becomes the same as in the first embodiment, and the forward and stop can be switched.
[0018]
Embodiment 3 of the Invention
In each of the above embodiments, only the eccentric weight 5a on the driven side is loosely fitted to the mounting shaft. However, both the eccentric weights 5 and 5a can be loosely fitted to the mounting shaft to change the phase. 8, Yes loosely fitted in each of the two eccentric weight 5,5a which was a semicircular cross section mounting shaft 2, 2a, both the respective strike Tsu par 7 collision of the drive side of the gear 3 and the driven side of the gear 3a It is set up. And the recessed part 6 which receives the stopper 7 formed in the end surface of the eccentric weight 5 by the side of the said drive is made into the circular arc shape which made the center angle about 180 degree | times. The relative positions of the two stoppers are as follows. When the eccentric weight 5 is downward, the eccentric weight 5a is rearward as shown in FIG. 8 at the time of forward rotation (at this time, both stoppers 7 are in contact with the side surfaces of the eccentric weight). As shown in FIG. 9, when the eccentric weight 5 is downward, the eccentric weight 5a faces forward (at this time, the stopper 7 contacts the edge of the recess 6 on the driving side). Also in this embodiment, as in the second embodiment, the phases of the eccentric weights 5 and 5a change approximately 180 degrees as shown in FIGS. 8 and 9 by forward / reverse rotation of the drive input, and the forward / backward movement is switched.
[0019]
Embodiment 4 of the Invention
In FIG. 10, a stopper 7a protrudes from the driving gear 3 at an angle of 135 degrees, and the stoppers 7 and 7a protrude from the driven gear 3a at an angle of 45 degrees. It is. Both eccentric weights 5 and 5a are semicircular in cross section. As shown in FIG. 10, the relative positions of the stoppers are as follows. When the eccentric weight 5 is downward, the eccentric weight 5a is rearward. When the eccentric weight 5 is reverse, when the eccentric weight 5 is downward, as shown in FIG. The eccentric weight 5a is also directed downward. Also in this embodiment, as in the first embodiment, both eccentric weight 5,5a phase as shown in FIGS. 10 and 11 is changed 90 degrees by forward and reverse rotation of the drive input, forward and stop switches.
[0020]
[Reference example]
2 and 3 are reference examples of the present invention. A stopper 7 protrudes from the gear 3a fixed to the driven side mounting shaft 2a. The stopper 7 is configured so that the eccentric weight 5a on the driven side faces rearward when the eccentric weight 5 on the driving side is downward as shown in FIG. 2 during forward rotation, and the eccentric weight 5 faces downward as shown in FIG. 3 during reverse rotation. At this time, the eccentric weight 4a is provided at a position facing forward. In the figure, reference numeral 11 is a handle, and 12 is a control box. The shape of the stopper 7 is shown as a pin shape in the figure, but the shape is not limited and may be, for example, a plate. Moreover, the stopper 7 may be attached to the attachment shaft 2a of the eccentric weight in addition to being attached to the gear.
[0021]
In this reference example , when the drive input is rotated forward and the drive-side mounting shaft 2 is rotated forward (indicated by an arrow in FIG. 3), the driven-side mounting shaft 2 a rotates in the opposite direction to the mounting shaft 2. At this time, the stopper 7 projecting from the gear 3a comes into contact with one concave portion 6 formed on the side surface of the eccentric weight 5a, and rotates the eccentric weight 5a. At this time, the direction of the force generated by the two eccentric weights is 45 degrees forward and downward, and the aircraft moves forward.
[0022]
When the drive input is reversed and the drive side attachment shaft 2 is reversed (indicated by an arrow in FIG. 3), the driven side attachment shaft 2 a rotates in the opposite direction to the attachment shaft 2. At this time, the stopper 7 protruding from the gear 3a comes into contact with the other recess 6a formed on the side surface of the eccentric weight 5a, and rotates the eccentric weight 5a. In addition, from the state of FIG. 2 to the state of FIG. 3, the stopper 7 does not contact the eccentric weight 5a and rotates halfway, while the drive-side eccentric weight 5 rotates halfway. Therefore, the phase of the two eccentric weights is shifted by 180 degrees during forward rotation and reverse rotation. In the state of FIG. 3, the direction of the force generated by the two eccentric weights is 45 degrees up and down, and the aircraft moves backward.
[0023]
【The invention's effect】
According to the present invention, one or both eccentric weights are loosely fitted to the mounting shaft, and the phase of both eccentric weights is changed by the stopper provided on the mounting shaft side, so that the rotation of the drive input is switched between forward and reverse. It is possible to change the progression (forward, reverse, stop) of the aircraft by only.
[Brief description of the drawings]
FIG. 1 is a plan view of a first embodiment of the present invention.
FIG. 2 is a front view showing a state of an eccentric weight and a stopper during normal rotation in a reference example of the present invention .
FIG. 3 is a front view showing a state when the eccentric weight and the stopper are reversely rotated.
FIG. 4 is a front view showing a state during normal rotation of an eccentric weight and a stopper according to Embodiment 1 of the present invention .
FIG. 5 is a front view showing a state when the eccentric weight and the stopper are reversely rotated.
FIG. 6 is a front view showing a state during normal rotation of an eccentric weight and a stopper according to Embodiment 2 of the present invention.
FIG. 7 is a front view showing a state when the eccentric weight and the stopper are reversely rotated.
FIG. 8 is a front view showing a state during normal rotation of an eccentric weight and a stopper according to Embodiment 3 of the present invention.
FIG. 9 is a front view showing a state when the eccentric weight and the stopper are reversely rotated.
FIG. 10 is a front view showing a state during normal rotation of an eccentric weight and a stopper according to Embodiment 4 of the present invention.
FIG. 11 is a front view showing the state when the eccentric weight and the stopper are reversely rotated.
[Explanation of symbols]
1 plate 2 mounting shaft 2a mounting shaft 3 gear 3a gear 4 pulley 5 eccentric weight 5a eccentric weight 6 concave portion 6a concave portion 7 stopper 7a stopper 8 groove 9 motor 10 belt 11 handle 12 control box A vibration compaction machine

Claims (4)

In the travel conversion device in which eccentric weights are attached to two axes perpendicular to the traveling direction of the body of the vibration compacting machine, and the travel of the body is converted by changing the phase of the eccentric weight,
The drive input of the eccentric weight can be switched between forward and reverse rotation,
The eccentric weight has a semicircular cross section,
One eccentric weight is fixed to the mounting shaft, and the other eccentric weight is loosely fitted to the mounting shaft.
On the gear fixed to the mounting shaft on which the eccentric weight is loosely fitted, stoppers that contact the eccentric weight and regulate the phase of the eccentric weight project at two positions at an angle of 90 degrees,
The phase of the two eccentric weights is changed by 90 degrees by forward / reverse switching of the drive input, and the advance of the aircraft is converted into forward and stop,
Progressive conversion device for vibration compaction machine. In the travel conversion device in which eccentric weights are attached to two axes perpendicular to the traveling direction of the body of the vibration compacting machine, and the travel of the body is converted by changing the phase of the eccentric weight,
The drive input of the eccentric weight can be switched between forward and reverse rotation,
The eccentric weight has a semicircular cross section,
Both eccentric weights are loosely fitted to the mounting shaft,
The gear fixed to each mounting shaft is provided with one or two stoppers that contact the eccentric weight and regulate the phase of the eccentric weight.
The phase of the two eccentric weights is changed by 180 degrees by forward / reverse switching of the drive input, and the advance of the aircraft is converted into forward and reverse,
Progressive conversion device for vibration compaction machine. In the travel conversion device in which eccentric weights are attached to two axes perpendicular to the traveling direction of the body of the vibration compacting machine, and the travel of the body is converted by changing the phase of the eccentric weight,
The drive input of the eccentric weight can be switched between forward and reverse rotation,
The eccentric weight has a semicircular cross section,
Both eccentric weights are loosely fitted to the mounting shaft,
The gear fixed to each mounting shaft is provided with one or two stoppers that contact the eccentric weight and regulate the phase of the eccentric weight.
The phase of the two eccentric weights is changed by 90 degrees by forward / reverse switching of the drive input, and the advance of the aircraft is converted into forward and stop,
Progressive conversion device for vibration compaction machine. In the travel conversion device in which eccentric weights are attached to two axes perpendicular to the traveling direction of the body of the vibration compacting machine, and the travel of the body is converted by changing the phase of the eccentric weight,
The drive input of the eccentric weight can be switched between forward and reverse rotation,
One or both of the eccentric weights are loosely fitted to the mounting shaft,
The gear fixed to the mounting shaft in which the eccentric weight is loosely fitted is provided with a stopper for regulating the phase of the eccentric weight,
An arcuate groove on which the stopper is mounted is provided on the end surface of the eccentric weight,
The phase of the two eccentric weights is changed by forward / reverse switching of the drive input, and the progression of the aircraft is converted.
Progressive conversion device for vibration compaction machine.

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