JP3023692U - Vibration type chipping machine - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] An existing vibrating device can be used as a main body without dedicating a chiseling machine for each chisel, and the chisel can be easily replaced according to the content of the chisel, and the chiseling work can be performed. The purpose is to provide a chipping machine that can be operated efficiently and that is highly economical. SOLUTION: A chisel attachment 2 is easily attached to and detached from a base plate 5 of a vibration compactor which is attached to an arm tip of a construction machine such as a power shovel by bolting, pin connection or lock connection means, and the chisel attachment 2 is a bottom surface. In addition, a large number of chisels 21 are attached to the flat plate-shaped attach plate 20 by means of a base welding means. Various types of chisel attachments 2 are prepared so as to suit the work target. The chisel attachment may be replaceably attached to the attach plate by bolt means.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a vibrating chipping machine which is attached to the end of an arm of a construction machine and used for chipping the surface of concrete structures such as piers and slopes of dams.

[0002]

[Prior art]

 For chiseling the concrete surface for construction, repair or reinforcement of concrete structures such as bridge piers, dam slopes, breakwaters, building walls, tunnel inner walls, etc., power shovels are usually used as shown in Fig. 7. A chiseling machine 45 that uses compressed air is attached to the tip of the rod of the construction machine such as a backhoe and the arm of the bucket cylinder 41 using a mounting tool including an arm bracket 42, a main bracket 43, and a hammer bracket 44. For example, a chisel 46 installed in the lower portion of the chipping machine 45 by a valve switching operation to apply a striking force by air pressure is used.

[0003]

[Problems to be solved by the device]

 However, the above-mentioned chiseling machine is a dedicated chiseling machine that combines an air striking mechanism and a chisel part integrally, and when chiseling work, it is attached to a construction machine such as a power shovel with a dedicated mounting tool. For a chisel suitable for the above, it was troublesome to prepare some chiseling machines equipped with a dedicated power mechanism and to replace the whole chiseling machine together with at least a part of the brackets. In addition, the chisel layout is limited and the chipping area is small, so the work is relatively inefficient, and if the number of chisels is increased, the size of the entire device, including the chiseling machine, will increase, and the operation of the chipping machine will increase. It requires detailed skills to operate the construction machinery on the cab.

In view of such a situation, the present invention does not dedicate a chiseling machine for each chisel, but uses an existing vibration device attached to a construction machine as a main body, and attaches a chisel to a chisel. The purpose of the present invention is to provide a highly economical chipping machine that is relatively simple in operation and can perform chipping work efficiently, and that can easily replace the chisel according to the content of the chipping.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention attaches a chisel attachment to a base plate of a vibration compactor that is attached to the tip of an arm of a construction machine such as a power shovel to compact the ground, and the chisel attachment is attached to a lower surface of the base plate. In addition, a vibrating chiseling machine in which a large number of chisels are attached to a flat attachment plate by welding means at the base, and the chisel attachment is a vibrating chisel that is selected from a chisel attachment group with different chisel shape dimensions and arrangements. Machine, the chisel attachment is a vibrating chiseling machine in which the chisel is detachably attached to the attachment plate by bolt means, and the chisel attachment is attached to the base plate by bolt means. Vibrating The grinding machine, and the chisel attachment and the base plate each have a projecting mounting portion having a pin hole, and the chisel attachment is secured to the base plate by a pin connecting means for restraining the projecting mounting portions by inserting a pin. A vibrating chiseling machine attached to the table, and also a pair of fixing pins parallel to the upper surface of the chisel attachment, and a fixed locking portion and a movable engagement portion having mutually symmetrical concave portions on the lower surface of the base plate. The movable locking body is provided with a stop body, and the movable locking body is provided with a female screw body to move in the horizontal direction below the base plate by the rotation of the screw rod held by the base plate, and in cooperation with the fixed locking portion, the chisel attachment. Locking means for locking and restraining the pair of fixing pins, and the locking means holds the chisel attachment with the base plate. It proposes a vibratory chipping machine mounted on bets.

[0006]

[Embodiment of device]

 Prior to the chiseling work, the compact vibrating plate is removed from the base plate of the vibrating compactor that has been attached to the construction machine such as a power shovel in advance, and a chisel attachment equipped with a chisel is attached instead to construct a vibrating chiseling machine. In advance, a chisel attachment may be attached to the vibration compactor to form a vibrating chipping machine, and then this vibrating chipping machine may be attached to the construction machine.

As the vibration compactor to which the chisel attachment is attached, an existing hydraulic motor or electric motor driven one attached to a construction machine can be used. The chisel vibrates together with the base plate when the construction machine is operated to place the vibration-type chiseling machine at the chiseling point, drive the motor, and actuate the vibrator. By holding down the vibratory debris machine with the arm of the construction machine, the debris work is efficiently performed by the vertical vibration that suppresses the longitudinal vibration. Move the work place in sequence and repeat the chiseling work.

When the chisel of the chisel attachment is detachable by bolt means, when the chisel is damaged, only the damaged chisel can be replaced.

To attach the chisel attachment to the base plate, use a general bolt connection for bolt connection, insert a pin between the base plate and the chisel attachment protruding portion, and connect the base plate with a movable locking body. The screw rod can be rotated and moved left and right, and can be easily and surely attached by any method of connecting the locking means for binding and holding the pin fixed to the chisel attachment in cooperation with the fixed locking portion.

Prepare multiple types of chisel attachments with different chisel dimensions and arrangements, and the base plate of the vibration compactor body can be easily replaced by the above mounting method, etc., and as appropriate. By exchanging them, it is possible to efficiently perform the chipping work depending on the target.

[0011]

【Example】

 1 and 2 are a front view and a side view of a vibrating chipper according to the present invention. In the figure, A is a vibrating chiseling machine of the present invention in which a chisel attachment 2 is connected to a housing 1 of a vibrating compactor equipped with a vibrating body in place of a vibrating plate. It is designed to be attached and used instead of the bucket.

In this vibration type chipping machine A, as shown in FIGS. 1 and 2, a flat plate shape is provided below a housing 1 provided with a vibrating body, which will be described later, via mounting legs 3 and a mounting plate 4. The base plate 5 is integrally fixed, and the chisel attachment 2 is attached to the base plate 5. Further, the base plate 5 is vertically joined to a U-shaped holding plate 6 in a side view on the left and right of the upper surface, and the holding plate 6 also has a pair of front and rear antivibration rubber bodies 7 arranged inside the upper part. The frame 8 is held via the anti-vibration rubber body 7. Reference numeral 9 is a rib body interposed between the lower portions of the frame 8. That is, the base plate 5 together with the housing 1 is suspended and held by the frame 8 through the vibration-proof rubber body 7, and the frame 8 is connected to the upper end surface of the frame 8 by the top bracket 10 which is integrally connected to the arm of the power shovel. 11 and the tip of the rod of the bucket cylinder 12 are connected (FIG. 2).

The anti-vibration rubber body 7 allows the base plate 5 to vibrate even when the vibration-type chipping machine A is pressed from above by the arm 11 and the bucket cylinder 12 on the power shovel side, and the base plate 5 Has the effect of suppressing the vibration of the machine from being transmitted to the power shovel side as much as possible.

As shown in FIG. 3, the vibrator 13 included in the housing 1 is attached to the hydraulic motor 14 attached to the housing 1, a rotary shaft 15 rotated by the hydraulic motor 14, and the rotary shaft 15. And an eccentric flywheel 16 that integrally rotates. That is, the rotating shaft 15 is held in the housing 1 via holding rings 17A and 17B and bearings 18A and 18B, and is rotated by a gear meshed with a gear of a motor shaft (not shown) of the hydraulic motor 14. An eccentric weight piece, that is, an eccentric flywheel 16 is fixed to the circumference of the rotary shaft 15 by press fitting.

Then, the rotation shaft 15 is rotated by the driving of the hydraulic motor 14 and the eccentric flywheel 16 is rotated, so that vibration is generated. Therefore, the housing 1 vibrates and the housing 1 is vibrated. The base plate 5 connected integrally vibrates. Then, as shown in FIGS. 1 and 2, a chisel attachment 2 including an attachment plate 20 and a chisel 21 is bolted to the base plate 5 so as to vibrate integrally.

This chisel attachment 2 has a number of relatively short chisel-shaped chisels 21 joined vertically to the lower surface of the attachment plate 20 by welding, and the chisel 21 usually has several to several tens of predetermined evenly. Although the chisel 21 is attached in an arranged state, it is desirable to prepare several types of chisel 21 having different shapes and arrangements or different numbers so that they can be exchanged according to the work target.

In consideration of damage to the chisel, the chisel attachment 2 has a head 22a having a small diameter and a female screw formed in the center thereof as shown in FIG. 22a may be inserted into a hole formed in the attachment plate 23 from below, and a bolt 24 may be tightened and fixed from above so as to be replaceably attached to the attachment plate 23.

As shown in FIGS. 1 and 2, a convex portion 5a is provided on the lower surface of the base plate 5, and the upper surface of the attachment plate 20, which is bolted to the convex portion 5a, has an uneven relationship with the convex portion 5a. The recesses 20a are provided so that the recesses 20a can be combined with each other to prevent the occurrence of displacement due to vibration.

Therefore, by driving the hydraulic motor 14 of the vibrating body 13 and rotating the eccentric flywheel 16 via the rotating shaft 15, vibration is generated in the base plate 5, and at the same time, the top bracket is operated by the operation on the power shovel side. By pressing the frame 8 from above via 10 it is possible to vertically vibrate the chisel attachment 2 connected and fixed to the base plate 5 to perform chiseling work. When the force pressing the frame 8 is increased, the vibration in the front-back direction in the base plate 5 and the chisel attachment 2 is suppressed, the vibration in the vertical direction is increased, and the chipping action can be increased. At four points on the upper surface of the base plate 5, pedestals (not shown) with which the lower end surface of the frame 8 can abut are attached as stoppers to prevent the frame 8 from being excessively pushed.

This vibration chipping machine A functions as an original vibration compactor when a vibration plate for a vibration compactor is attached to the base plate 5, and when the vibration plate is replaced with a chisel attachment 2 as shown in FIG. It functions as a chiseling machine A, and can select a suitable chisel attachment according to the chisel content and easily replace it, so that efficient chiseling work can be performed at all times.

Although the chisel attachment is attached to the base plate with bolts in the above-described embodiment, another embodiment in which the connection method between the base plate and the chisel attachment is changed is shown in FIGS. 5 and 6.

In FIG. 5, the base plate 26 to which the holding plate 25 is joined has a pair of front and rear upper mounting portions 26 a that have pin insertion holes and project in a leg shape, and are provided on the upper surface of the chisel attachment 27. Is provided with a pair of front and rear lower mounting portions 27a which have pin insertion holes and project from the upper mounting portion 26a so as to be able to cross left and right, and the pins 28 are inserted through the pin insertion holes of the upper mounting portion 26a and the lower mounting portion 27a, respectively. So that they can be connected. The pin 28 has a head portion at the base end, a male screw is engraved at the tip end, and a hole having a small diameter in the diameter direction is bored in the male screw portion. The same is true for the nut 28a provided at the tip end of the pin 28. A hole having a diameter is formed. That is, the screw 28 is inserted through the inserted pin 28 and the small-diameter hole of the nut 28a, and the nut 30 for preventing loosening is applied to the tip thereof to prevent the pin from coming off due to vibration. The chisel attachment 27, which has a simple structure and can withstand vibration, can be easily connected.

In the structure shown in FIG. 6, a pair of front and rear pin mounting portions 31a are fixedly mounted on the upper surface of the chisel attachment 31, and locking pins 32 are fixed to the pin mounting portions 31a so as to project to the left and right. is there. Further, on the lower surface of the base plate 33, a pair of left and right fixed locking portions 33a having symmetrical recesses in the front-rear direction and a movable locking body 34 are provided. The movable locking body 34 has a base portion slidably held in the front-rear direction at an engaging portion 33b of a base plate 33, and an outer side thereof is provided with a female screw body 35 having a female screw formed therein. A screw rod 36 having a male screw screwed into the female screw of the female screw body 35 is rotatably held at one end in a holding portion 33c on the lower surface of the base plate 33. A pair of left and right screwing mechanisms formed by the combination of the screw rod 36 and the female screw body 35 are provided. By rotating the screw rods 36, the pair of left and right movable locking bodies 34 are moved in the front and rear directions, and the fixed locking portion is provided. 33a, the chisel attachment 31 is retained by the base plate 33 by engaging with and restraining the engagement pin 32 of the chisel attachment 31. This connecting means has a more complicated mechanism than that of the above-mentioned method, but the connecting speed is faster and reliable locking is possible.

[0024]

[Effect of device]

 1. According to this invention, the chisel mechanism that uses the vibration of the chisel is adopted, and the existing vibration compactor is used almost as it is as the vibrator body, and the chisel for the chisel can be easily replaced as an attachment. Play. Since a chiseling machine equipped with a dedicated power mechanism and a dedicated bracket are not required, it is economical and can be used easily. The chisel attachment can be easily replaced by replacing the chisel attachment depending on the target of the chisel, so it is highly workable and economical. Since the chisel attachment and the vibration plate can be replaced, the function of the vibration compactor will not be impaired. As with the vibration compactor, it is possible to carry out the chiseling work simply by pressing the vibrating chiseling machine to the work place, without the need for detailed functional operations as with conventional chiseling machines. 2. Further, the invention in which the chisel is screw-fastened and replaceable can be used in the same manner as in the past by replacing the chisel even if the individual chisel is damaged, and is particularly advantageous in the case of having a large number of chisel. 3. The design of the bolt tightening method for the chisel attachmet is simple in structure, and can be easily replaced by attaching and removing the bolts, which is economical. 4. The idea of attaching the chisel attachment using the pin method has a small number of attachment operation points and allows efficient replacement work. 5. The idea of attaching the chisel attachment with a lock method is a simple one-touch operation that allows more efficient replacement work.

[Brief description of drawings]

FIG. 1 is a front view of a vibration type chipping machine of the present invention.

FIG. 2 is a side view of the vibration type chipping machine of FIG.

FIG. 3 is a partial front cross-sectional view showing a vibrating body included in the housing in FIG.

FIG. 4 is a partial side sectional view showing a replaceable chisel according to another embodiment.

FIG. 5 is a side view showing a base plate and a chisel attachment according to another embodiment.

FIG. 6 is a side view showing a base plate and a chisel attachment according to still another embodiment.

FIG. 7 is a partial perspective view of a construction machine equipped with a conventional chiseling machine.

[Explanation of symbols]

 A Vibration-type chiseling machine 1 Housing 2 Chisel attachment 3 Mounting leg 4 Mounting plate 5 Base plate 6 Holding plate 7 Anti-vibration rubber body 8 Frame 9 Rib body 10 Top bracket 11 Arm 12 Bucket cylinder 13 Exciter 14 Hydraulic motor 15 Rotating shaft 16 Eccentric flywheel 17A, 17B Holding ring 18A, 18B Bearing 20 Attachment plate 21 Chisel 22 Chisel 23 Attachment plate 24 Bolt 25 Holding plate 26 Base plate 27 Chisel attachment 28 Pin 29 Screw 30 Nut 31 Chisel attachment 32 Locking pin 33 Base plate Stop portion 33b Engagement portion 33c Holding portion 34 Movable locking body 35 Female screw body 36 Screw rod

Claims (6)

[Scope of utility model registration request] 1. A chisel attachment is removably attached to a base plate of a vibration compactor for compacting the ground by attaching it to the arm tip of a construction machine such as a power shovel, and the chisel attachment has a large number of chisels on the bottom surface. A vibrating chipping machine, characterized by being attached to a flat attachment plate by a welding means. 2. The vibrating chiseling machine according to claim 1, wherein the chisel attachment is selected from a group of chisel attachments having different chisel shapes and arrangements. 3. The vibrating chiseling machine according to claim 1, wherein the chisel attachment is configured such that the chisel is detachably attached to the attachment plate by bolt means. 4. The vibrating chipper according to claim 1, wherein the chisel attachment is attached to the base plate by bolt means. 5. The chisel attachment and the base plate each have a projecting attachment portion having a pin hole, and the chisel attachment is attached to the base plate by a pin connecting means for restraining the projecting attachment portions by inserting pins. The vibration type chipping machine according to claim 1, wherein 6. A pair of fixing pins parallel to the upper surface of the chisel attachment, a fixed locking portion having concave portions symmetrical to each other on the lower surface of the base plate and a movable locking body, and the movable locking member. The body has a female screw body and moves in parallel to the lower side of the base plate by rotation of a screw rod held by the base plate, and in cooperation with the fixed locking portion, locks and locks a pair of fixing pins of the chisel attachment. 4. The vibrating chipping machine according to claim 1, further comprising locking means for locking the chisel attachment to the base plate by the locking means.