JP4166161B2 - Peeling device - Google Patents

Description

  The present invention relates to a peeling apparatus and a peeling method used when peeling an object to be peeled such as a flooring material.

  In order to renovate indoor floors, walls, or ceilings, it is common practice to remove old surface materials such as vinyl sheets and tiles and replace them with new surface materials.

As a peeling apparatus for peeling the floor material, one described in Patent Document 1 has been conventionally known. In the peeling apparatus described in Patent Document 1, a swingable blade body casing provided at a front portion of a work vehicle body is swung by a hydraulic cylinder, and the blade body provided in the blade body casing is moved to a floor. While making the blade contact with the surface at an appropriate angle and vibrating the blade body by a driving device, the work body is advanced to peel off the floor material.
JP-A-11-81698

  By the way, in the peeling apparatus described in the said patent document 1, since it is an exclusive machine for floor material peeling of a floor surface, the peeling target object of a wall surface or a ceiling surface cannot be peeled. Moreover, since a dedicated work vehicle body is required, there is a problem that it is expensive.

  An object of the present invention is to provide a peeling apparatus and a peeling method excellent in durability capable of peeling an object to be peeled on a wall surface and a ceiling surface as well as a floor surface very efficiently.

  In order to solve the above-described problems, in the peeling device according to the present invention, a bracket that is swingably attached to the tip of an arm of a hydraulic excavator, a frame that is pivotally provided on the bracket, and a frame that pivots the frame. A fixing means for fixing at the adjustment position; and an exciter supported by the opposite side plate of the frame and driven by hydraulic pressure from a hydraulic excavator. A front shaft and a rear shaft that move in the direction are provided on the same axis, a bearing that slidably supports the front shaft and the rear shaft is provided on the frame, and a cutter blade is provided at a tip portion of the front shaft. The installed configuration was adopted.

  Here, the vibrator is attached to the side plate of the frame via an elastic member.

  In the peeling apparatus according to the present invention, as the fixing means, a plurality of engagement holes provided at equal intervals on one circumference centered on the pivot axis of the frame, and one engagement hole supported by the bracket. It is possible to employ a stopper pin that is capable of moving forward and backward.

  Moreover, a round shaft can be employ | adopted as a front part shaft and a rear part shaft.

  In the peeling apparatus according to the present invention, the frame may be provided with an abutting portion that maintains a constant inclination angle of the cutter blade with respect to the peeling work surface by abutting against the peeling work surface.

  In the peeling method according to the present invention, the peeling device having the above-described configuration is attached to the tip of the arm of the hydraulic excavator, and the cutting edge of the cutter blade is moved to the floor surface, wall surface, or ceiling surface by swinging the boom and arm of the hydraulic excavator. After adjusting the inclination angle of the cutter blade with respect to the peeling work surface, etc., the exciter is activated and the peeling device is moved to the peeling work surface by operating the arm and boom while vibrating the cutter blade. The object to be peeled off on the peeling work surface was peeled off by almost parallel movement.

  Note that the hydraulic excavator may be moved instead of operating the boom and arm.

Since the peeling apparatus according to the present invention is configured as described above, the following effects can be obtained.
(1) Since it is attached to the tip of the arm of the hydraulic excavator, the posture of the cutter blade can be adjusted arbitrarily by operating the boom and arm of the excavator, so that not only the floor surface but also the wall surface and ceiling surface are peeled off. The object can be peeled off.
(2) By attaching an exciter to the side plate of the frame via an elastic member, it is possible to mitigate transmission of vibration during the peeling operation to the hydraulic excavator.
(3) Since it is used by being mounted on a general-purpose small hydraulic excavator, a dedicated work vehicle body is not required, and a low cost peeling device can be obtained.
(4) Since the peeling device can be moved substantially parallel to the peeling work surface by operating the boom and arm of the hydraulic excavator, the peeling work can be performed even in a narrow place where the work vehicle body cannot be moved.
(5) Since the frame can be rotated with respect to the bracket, the orientation of the cutter blade can be changed by turning the frame, and the change of the orientation of the cutter blade prevents dead space from being generated on the peeling work surface. The peeling work can be performed over the whole peeling work surface.
(6) Since the front shaft and the rear shaft provided on the vibrator are slidably and rotatably supported by bearings provided on the frame, the reaction when the cutting edge of the cutter blade is pressed against the peeling work surface Since the force and moment can be supported by each of the bearings that support each shaft, it is possible to prevent a large bending load from being applied to the connection part of the exciter and the shaft, and separation with excellent durability A device can be obtained.

  Here, as a fixing means, a plurality of engagement holes are formed at equal intervals on one circumference around the pivot axis of the frame, and a stopper pin that can be advanced and retracted with respect to one engagement hole is provided on the bracket. By adopting the structure having the provided structure, the frame can be fixed and released by inserting / removing the stopper pin with respect to the engagement hole, so that it is possible to easily adjust the orientation of the cutter blade by turning the frame. .

  In addition, by making the front shaft and the rear shaft into round shafts, when the cutting edge of the cutter blade is pressed against the peeling work surface, a part of the cutting edge undulates or comes into contact with the inclined peeling work surface. If so, the rotational moment acts on the vibrator and the front shaft and the rear shaft rotate, so the entire cutting edge can be brought into contact with the peeling work surface in an optimal state, and the peeling work can be performed efficiently. Can do.

  Furthermore, by providing the contact portion on the frame, the contact portion and the cutting edge of the cutter blade are brought into contact with the peeling work surface, whereby the cutter blade can be held at a predetermined inclination angle with respect to the peeling work surface. Therefore, the tilt adjustment of the cutter blade is easy, and the peeling work can be performed efficiently.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the excavator 1 has a boom 2 and an arm 3, and the boom 2 is swung around a shaft 5 by a boom cylinder 4, while the arm 3 is pivoted by an arm cylinder 7. The peeling device 10 according to the present invention is connected to the tip of the arm 3.

  As shown in FIG. 2, the peeling device 10 has a bracket 11 connected to the tip of the arm 3. The bracket 11 has a configuration in which a pair of side plates 11b are provided on both sides of the support plate 11a, and an arm pin 12 and a link pin 13 are detachably supported between the upper portions of the pair of side plates 11b.

  The arm pin 12 can be freely inserted into and removed from a pin hole 14 that penetrates both side surfaces provided at the tip of the arm 3. By inserting the arm pin 12 into the pin hole 14, the bracket 11 swings at the tip of the arm 3. It is connected freely.

  As shown in FIG. 1, one end of a two-contact link 15 is connected to the link pin 13. The other end of the two-contact link 15 is rotatably connected to the tip of the arm 3, and the bracket 11 is centered on the arm pin 12 by expansion and contraction of the swing cylinder 16 connected to the link connection portion of the two-contact link 15. It swings.

  As shown in FIG. 2, a frame 18 is rotatably supported on the lower surface of the support plate 11 a of the bracket 11 via a swing bearing 17. Here, the slewing bearing 17 includes an outer race 17a and an inner race 17b that are relatively rotatable. The outer race 17a is attached to the support plate 11a, and the inner race 17b is attached to the frame 18.

  The frame 18 includes a race support plate 18a disposed opposite to the support plate 11a of the bracket 11, and a pair of side plates 18b provided on both sides of the race support plate 18a. The inner race 17b is disposed on the race support plate 18a. Is installed.

  Between the support plate 11a of the bracket 11 and the inner race 17b, fixing means 20 for fixing the frame 18 at the turning adjustment position is provided.

  The fixing means 20 has a plurality of engagement holes 21 formed at equal intervals on one circumference centered on the pivot axis of the frame 18 of the inner race 17b, and the engagement holes 21 are formed in the support plate 11a. The screw cylinder 22 is fixed on the circumference, and the screw shaft portion 23a provided on the stopper pin 23 is screw-engaged with the screw tube 22, and the axial direction of the stopper pin 23 by the rotation of the screw shaft portion 23a is engaged. By movement, the stopper pin 23 is inserted into one of the plurality of engagement holes 21 to fix the frame 18.

  As shown in FIGS. 2 and 3, a front stay 24 and a rear stay 25 are passed between the lower portions of the opposing side plate 18 b of the frame 18, and a vibrator 26 is provided between the stays 24, 25. .

  The vibrator 26 is elastically supported on the side plate 18b of the frame 18 via elastic bodies 27 attached to both side surfaces thereof. The exciter 26 is provided with a front shaft 28 on the front surface facing the front stay 24 and a rear shaft 29 on the rear surface facing the rear stay 25.

  The front shaft 28 and the rear shaft 29 are round shafts. The front shaft 28 and the rear shaft 29 are coaxially arranged, and the front shaft 28 is slidably and rotatably supported by a guide bush 30 as a bearing supported by the front stay 24. . On the other hand, the rear shaft 29 is slidably and rotatably supported by a guide bush 31 as a bearing supported by the rear stay 25. Each of the guide bushes 30 and 31 is made of a synthetic resin having a good sliding property.

  The exciter 26 is driven by a hydraulic motor 32 connected to the upper portion thereof and vibrates in the axial direction of the front shaft 28 and the rear shaft 29. Here, the hydraulic motor 32 is driven by the hydraulic pressure from the hydraulic excavator 1, and the rotary joint 33 provided in the middle of the hydraulic pressure supply path is supported by the support plate 11 a of the bracket 11 and the race support plate 18 a of the frame 18. .

  A cutter holder 34 is attached to the tip of the front shaft 28, and a cutter blade 35 is detachably attached to the cutter holder 34.

  An abutting portion 36 having a circular outer periphery is provided between the lower portions of the opposed side plates 18b of the frame 18. By bringing the abutment portion 36 and the cutting edge of the cutter blade 35 into contact with the peeling work surface A such as the floor surface, the cutter blade 35 has an inclination angle θ that allows the peeling work surface A to be smoothly peeled off. It is supposed to be retained.

  Here, the inclination angle θ is preferably about 1 ° to 45 °, and is set to about 5 ° in the embodiment. In the embodiment, a halved round shaft is used as the contact portion 36, but a rotatable roller may be employed.

  The peeling apparatus shown in the embodiment has the above-described structure. For example, the floor surface is a peeling work surface A, and a floor material such as a sheet attached to the floor surface is a peeling object B. When attempting to peel B, first, the cutting edge A of the contact portion 36 and the cutter blade 35 is pressed against the peeling work surface A by operating the boom 2 and the arm 3 of the excavator 1. By the pressing, the cutter blade 35 is held at a predetermined inclination angle θ.

  After the cutting edge of the cutter blade 35 and the abutting portion 36 are pressed, the peeling device 10 is peeled off while maintaining the pressing state by operating the boom 2 and the arm 3 while driving the vibrator 26 to vibrate the cutter blade 35. The object to be peeled B is peeled by moving along the work surface A.

  If the cutter blade 35 is moved to the front during the peeling operation as described above, the operator can easily check the working state and the working position from the operator of the hydraulic excavator 1, so that the peeling operation can be performed efficiently. it can.

  When the work place is wide and the excavator 1 can be moved, the boom 2 and the arm 3 are held in a stopped state with the cutting edge of the cutter blade 35 and the contact portion 36 pressed against the peeling work surface A. The hydraulic excavator 1 may be moved. In this case, since the cutter blade 35 always moves along the peeling work surface A while being held at a constant inclination angle, the peeling work can be performed efficiently.

  Since the cutting edge of the cutter blade 35 moves while being pressed against the peeling work surface A, a reaction force is applied to the cutting edge. Since this reaction force is supported by the bearing 30 that supports the front shaft 28 and the bearing 31 that supports the rear shaft 29, an excessive bending load is applied to the connecting portion of each shaft 28, 29 and the vibrator 26. Is not loaded, and damage at the connecting portion can be suppressed.

  When the peeling work surface A is waved in a direction crossing the moving direction of the cutter blade 35, a part of the cutting edge of the cutter blade 35 comes into contact with the peeling work surface and receives a rotational force around the contact point. At this time, the front shaft 28 and the rear shaft 29 are rotatably supported by the bearings 30 and 31, and the vibrator 26 is elastically supported by the elastic member 27. It rotates around the front shaft 28 and the rear shaft 29 against elasticity, and the entire cutting edge of the cutter blade 35 is brought into contact with the peeling work surface A by the rotation.

  For this reason, the cutting edge of the cutter blade 35 is always kept in contact with the peeling work surface A, and the peeling object B can be peeled effectively.

  When the peeling operation is performed by always moving the cutter blade 35 toward the front, the wall becomes a dead space and the peeling operation cannot be performed.

  In this case, the orientation of the cutter blade 35 is changed by turning the frame 18. When turning the frame 18, the stopper pin 23 is moved away from the inner race 17 b by the rotation of the screw shaft portion 23 a of the fixing means 20, pulled out from the engagement hole 21, and the detent of the frame 18 is released. The direction of the cutter blade 35 is adjusted by rotating the frame 18.

  After the orientation adjustment, the stopper pin 23 is moved toward the inner race 17b by the rotation of the screw shaft portion 23a, and the stopper pin 23 is inserted into the engagement hole 21 facing the stopper pin 23.

By attaching the peeling device 10 to the tip of the arm 3 of the excavator 1 so as to be swingable, the cutting edge of the cutter blade 35 is moved to the wall surface A as shown in FIG. 4 by the operation of the boom 2 and the arm 3 of the excavator 1. ₂ and the ceiling surface A ₃ can be brought into contact with each other, and the separation object B on the wall surface A ₂ and the ceiling surface A ₃ can be peeled off.

  In the embodiment, the frame 18 is supported by the slewing bearing 17 in a swingable manner, but the support structure of the frame 18 is not limited to this. For example, a shaft may be provided on the support plate 11a of the bracket 11, and the frame 18 may be supported so as to be pivotable about the shaft.

  Further, the fixing means 20 of the frame 18 is not limited to the illustrated example, and may be fixed by tightening bolts and nuts.

The front view which shows embodiment of the peeling apparatus which concerns on this invention Longitudinal front view of the peeling apparatus shown in FIG. Bottom view of FIG. Front view showing another example of peeling work

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydraulic excavator 3 Arm 11 Bracket 18 Frame 18b Side plate 20 Fixing means 21 Engagement hole 23 Stopper pin 26 Exciter 28 Front shaft 29 Rear shaft 30, 31 Bearing (guide bush)
35 Cutter blade 36 Contact part

Claims (6)

  A bracket that is swingably attached to the tip of the arm of the hydraulic excavator, a frame that is pivotally provided on the bracket, a fixing means that fixes the frame at a pivot adjustment position, and a side plate that is supported by the opposite side plate of the frame. An exciter driven by hydraulic pressure from a hydraulic excavator, and the exciter is provided with a front shaft and a rear shaft that move in the axial direction by driving the exciter on the same axis, A peeling device in which the frame is provided with a bearing that slidably supports the front shaft and the rear shaft, and a cutter blade is attached to a front end portion of the front shaft.   The peeling apparatus according to claim 1, wherein the vibrator is elastically supported.   A plurality of engagement holes provided at equal intervals on one circumference centered on the pivot axis of the frame; and a stopper pin supported by a bracket and capable of moving forward and backward with respect to the one engagement hole. The peeling apparatus according to claim 1 or 2, comprising:   The peeling apparatus according to any one of claims 1 to 3, wherein the front shaft and the rear shaft are round shafts.   The peeling apparatus according to any one of claims 1 to 4, wherein the frame is provided with an abutting portion that maintains a constant inclination angle of the cutter blade with respect to the peeling work surface by being brought into contact with the peeling work surface.   The peeling device according to any one of claims 1 to 5 is attached to the tip of an arm of a hydraulic excavator, and the cutter blade of the peeling device is pressed against a surface to be peeled such as a floor surface, a wall surface, or a ceiling surface and moved while being vibrated. A peeling method that peels off the target surface.

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