JPH0227504B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used as a main part for dismantling structures (buildings, etc.) made of reinforced concrete, etc., or for peeling and crushing roadbeds made of concrete, etc. This invention relates to a crushing device that has excellent clamping efficiency or crushing efficiency for crushing concrete walls, floors, ceilings, columns, roadbeds, etc., and peeling off the roadbed, and can simultaneously cut internal reinforcing bars, etc.

[Conventional technology and its problems]

Recently, crushing equipment used as the main part for dismantling and crushing structures (buildings, etc.) made of reinforced concrete, etc., or peeling and crushing roadbeds made of concrete or asphalt, etc., has been developed for the purpose of workability, noiseless, vibrationless, etc. It is being actively researched and developed.
This type of machine has the upper and lower blades that can be opened and closed to grasp concrete walls, floors, ceilings, pillars, roadbeds, etc. and crushes them by compressing them with both blades.To make this crushing more effective, A sharp protrusion is provided on the cylinder, or the hydraulic cylinder is made powerful. However, although this crushing device can crush some items into smaller pieces, internal reinforcing bars, etc. still have to be cut with a separate cutter, which has the disadvantage of poor work efficiency. In addition, there was no material with mechanically superior shearing efficiency or crushing efficiency. For this reason, there has been a desire to develop something that has better shearing efficiency and can simultaneously cut internal reinforcing bars and the like.

[Means to solve the problem]

Therefore, as a result of extensive research in order to solve the above-mentioned drawbacks, the inventor has devised the present invention by pivoting the base of a movable jaw body on an outer casing, and removing the fixed jaw body corresponding to the movable jaw body. It is fixed to the casing, has a plurality of downward pointed teeth protruding from the left and right sides of the lower surface of the movable jaw body, and a large push-splitting blade made of a large diameter abacus bead cut in half approximately at the center of the bottom surface of the tip of the movable jaw body. The fixed jaw body is provided along the swinging surface of the movable jaw body, and a protrusion with a sharp cross-section is continuously provided behind the large pushing splitting blade, and the fixed jaw body is connected to three fixed blade rods each having a plurality of upwardly pointed teeth. The movable jaw body is made swingable by a hydraulic cylinder, and when the movable jaw body is closed, the large push splitting blade is formed as a bifurcated blade that can be inserted into the tip side of the fixed blade rod at the central position, Further, the sharp teeth on the left and right sides of the movable jaw body are provided so as to be located between the adjacent fixed blade rods, and the movable blade and the fixed blade are provided on the base side of the movable jaw body and the base side of the fixed blade rod. A crushing device may be constructed in which each of the movable jaw bodies is fixedly fixed and can be cut by shearing action, or the base of the movable jaw body is pivotally supported on the outer casing, and a fixed jaw main body corresponding to the movable jaw body is fixed to the outer casing. At the tip of the bottom center of the movable jaw body, a large push-splitting blade with a large diameter abacus bead roughly halved is installed along the swinging surface of the movable jaw body, and behind this is a small diameter abacus bead roughly halved. A plurality of small push splitting blades are provided, and a plurality of small push splitting blades are provided on the left and right sides of the lower surface of the movable jaw body,
The fixed jaw body is made up of three fixed blade rods, and the movable jaw body is swingable by a hydraulic cylinder,
When the movable jaw main body is closed, the fixed blade is formed as a bifurcated blade into which the large push splitting blade can be inserted into the tip side of the fixed blade rod at the center position, and the small push splitting blades are adjacent to each other on the left and right sides of the movable jaw main body. A crushing device that is installed so as to be located in the center between the rods, and has a movable blade and a fixed blade fixed to the base side of the movable jaw main body and the base side of the fixed blade rod, respectively, so that the blades can be cut by shearing action. Therefore, when used as the main part of crushing or stripping equipment, concrete walls, floors,
It has better shearing efficiency or crushing efficiency for crushing ceilings, columns, roadbeds, etc. and peeling off roadbeds, and can simultaneously cut internal reinforcing bars, etc., and has solved the above problems and achieved its purpose. It is.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 8.

What is shown in FIGS. 1 to 5 is the first embodiment of the present invention.
In the embodiment, this casing 1 is an outer casing, which has a substantially inverted right triangle or inverted L shape when viewed from the side, and is hollow inside. The front side of the outer casing 1 (the 4th
An opening 2 is provided on the left side in the figure.

Reference numeral 3 denotes a movable jaw main body, the base of which is inserted into the outer casing 1 through the opening 2 and is pivotally supported. In the embodiment, the base of the movable jaw main body 3 is fixed to a collar, and the collar is loosely inserted into the shaft rod 4 fixed to two openings of the outer casing 1, so that the movable jaw main body 3 swings in a vertical plane. is configured to operate. When viewed in cross section, the movable jaw main body 3 consists of side plates on both sides and a slightly curved main plate, and the lower surface of the main plate, that is, the lower surface of the movable jaw main body 3, as seen from the front, as shown in FIG. A plurality of downwardly pointed teeth 5, 5, . . . are provided in two rows on both sides to protrude from the tip toward the base side. In addition, as shown in FIG. 5, at approximately the center of the lower surface of the distal end side of the movable jaw body 3, there is a large push-splitting blade 22, which is a large-diameter abacus bead cut approximately in half, along the rocking surface of the movable jaw body 3 ( The cutting surface substantially coincides with the swinging plane of the movable jaw main body 3), and a protrusion 23 with a sharp cross section is protruded continuously behind the large push-splitting blade 22 so that the height thereof gradually decreases. It is set up.

Further, as shown in FIGS. 3 to 5, the large push splitting blade 22 can be inserted into the tip side of the fixed blade rod 6a at the center of the fixed jaw main body 6, which will be described later. They are often formed as bifurcated blades 24, 24. The two-pronged blades 24 and 24 are empty.
formed as a section.

A fixed jaw body 6 corresponds to the movable jaw body 3, and the base side of the fixed jaw body 6 is inserted into the outer casing 1 through the opening 2, and the base is fixed to the outer casing 1. It is fixed to the seat etc. This fixed jaw main body 6 has three fixed blade rods 6a, 6a, 6a.
The fixed blade rods 6a,
6a, a large number of upwardly pointed teeth 7 on the upper side of 6a,
7, . . . are continuously protruding from the tip to the base side in the shape of a saw blade. The three fixed blade rods 6a, 6
Auxiliary fixed blades 8, 8, which are substantially perpendicular (or perpendicular) to the longitudinal direction of the fixed blade rod 6a, are fixed at appropriate intervals between a and 6a, and the tip of the fixed jaw main body 6 extends from the side. When viewed from above, the fixed blade rods 6a, 6a, 6 form a sharp point toward the tip side, and when viewed from above, the fixed blade rods 6a, 6a, 6
A leading end connecting main plate 9 is provided so as to be aligned with the leading end of a. When the movable jaw main body 3 is closed by a hydraulic cylinder 13, which will be described later, as shown in FIG. 5, the left and right sharp teeth 5, 5, . . .
is located midway between adjacent fixed blade rods 6a, 6a.

Furthermore, a movable blade 10 and a fixed blade 11 are fixed to the base sides of the movable jaw body 3 and the fixed blade rod 6a, respectively, and as shown in FIGS. 1, 4, and 8, the movable jaw body 3 The fixed jaw body 6 is configured to perform a shearing action when the jaw body 6 and the fixed jaw body 6 are closed. In particular, as shown in FIGS. 4 and 8, when the movable blade 10 and the fixed blade 11 close together to cut the reinforcing steel, etc., they do not spit out the material, that is, there is no escape effect, and the material is pulled toward the base and sheared appropriately. The movable blade 10 is formed at an angle so as to function.

At the distal end of the movable jaw main body 3, a distal end shaft 12 is fixed or pivotally supported substantially parallel to the shaft 4. As shown in FIG. That is, the distal end shaft rod 12 is provided between the side plates on both sides of the movable jaw main body 3. Reference numeral 13 denotes a hydraulic cylinder, which is built into the outer casing 1, whose middle part is pivoted on the outer casing 1, and has a cylinder rod 14 on the front side that moves forward and backward as appropriate by hydraulic pressure. It is pivotally supported by the tip side shaft rod 12,
By sliding the cylinder rod 14 back and forth, the movable jaw main body 3 swings in a vertical plane.

In the figure, 15 is the shovel loader main body, 16 is an arm, 17 is a sub-arm, and 18 is a mounting plate for the outer casing 1.
is fixed to. 19, 20, and 21 are first, second, and third hydraulic cylinders.

What is shown in FIGS. 7 and 8 is a second embodiment of the present invention, in which a large push-splitting blade 22 is provided approximately at the center of the bottom surface of the movable jaw main body 3 on the distal end side of the first embodiment of the present invention. A plurality of small push-splitting blades 25, each of which is a small-diameter abacus bead cut approximately in half, are fixed at appropriate intervals at the rear, and sharp edges are provided on the left and right sides of the lower surface of the movable jaw main body 3 of the first embodiment of the present invention. In place of the teeth 5, 5, . . . , a plurality of small push splitting blades 25 are fixed to the left and right sides of the movable jaw main body 3 at appropriate intervals.

〔Effect of the invention〕

First, in the invention of claim 1, the base of the movable jaw main body 3 is pivotally supported on the outer casing 1, and the fixed jaw main body 6 corresponding to the movable jaw main body 3 is fixed to the outer casing 1, A plurality of downwardly pointed teeth 5, 5, ... are protruded from the left and right sides of the lower surface of the movable jaw main body 3, and at the approximate center of the lower surface of the tip of the movable jaw main body 3, there is a large push-split with a large diameter abacus bead cut approximately in half. A blade 22 is provided along the swinging surface of the movable jaw main body 3, and the large push splitting blade 2
2, the fixed jaw main body 6 has a plurality of upwardly pointed teeth 7,
Three fixed blade rods 6a, 6a, 6a provided with 7,...
The movable jaw main body 3 is connected to a hydraulic cylinder 1.
3, and when the movable jaw main body 3 is closed, the large push-splitting blade 22 is formed as two-pronged blades 24, 24 into which the large push-splitting blade 22 can be inserted into the tip side of the fixed blade rod 6a at the center position, and is movable. The sharp teeth 5, 5, ... on the left and right sides of the jaw body 3 are provided so as to be located midway between the adjacent fixed blade rods 6a, 6a, and the base side of the movable jaw body 3 and the base side of the fixed blade rod 6a are provided. By making a crushing device in which a movable blade 10 and a fixed blade 11 are respectively fixed to each other and can be cut by shearing action,
When used as the main part of a crushing or peeling device, it can crush concrete walls, floors, ceilings, columns, roadbeds, etc., and peel off roadbeds with better crushing efficiency or crushing efficiency, and can be used to crush concrete walls, floors, ceilings, columns, roadbeds, etc. etc. can be cut at the same time.

To explain these effects in detail, as shown in FIG. 6, a shovel and the crushing device of the present invention are replaced at the end of the auxiliary arm 17 of a shovel loader, and the cylinder rod 14 is moved forward and backward as appropriate by the hydraulic drive of the hydraulic cylinder 13. When the movable jaw main body 3 is moved and the crushing work is performed by swinging the movable jaw main body 3, the downward pointed teeth 5, 5, ... of the upper movable jaw main body 3 and the many upward pointing teeth of the lower fixed jaw main body 6 are removed. The sharp teeth 7, 7, . . . can reliably grip the object to be crushed and perform crushing work reliably and efficiently. That is, when an object to be crushed is to be crushed by the movable jaw main body 3 and the fixed jaw main body 6, the crushing action is performed in such a way that it is squeezed out to the left in FIG. tooth 7,
7,..., the object to be crushed on the fixed jaw main body 6 is hardly pushed out, and the object to be crushed can be held in a fixed state, thereby preventing the object from escaping. In the process of pushing and breaking, the hydraulic pressure from the hydraulic cylinder 13 can be converted into pushing force with high efficiency, and extremely efficient crushing work can be performed. Further, when the movable jaw body 3 is closed, the large push-splitting blade 22 is formed as a bifurcated blade into which the tip side of the fixed blade rod 6a at the central position can be inserted, and the sharp teeth 5 on the left and right sides of the movable jaw body 3 are formed as bifurcated blades. ,5,
... is located midway between the adjacent fixed blade rods 6a, 6a, and the large push splitting blade 22 located at the center of the movable jaw main body 3 is shaped like an abacus bead, so its destructive force is as sharp as that of an abacus bead. acts as a concentrated load on the outer periphery of the blade, and can easily cause cracks in the object to be crushed in the longitudinal direction (longitudinal direction of the movable jaw main body 3). It is also possible to further improve the crushing action with the protrusions 23 having a sharp cross section, and the sharp teeth 5,
5, ... and the sharp teeth 7, 7, ... can crush the object in a fracture manner, unlike the case where the crushing force acts on the object in a staggered manner and simply crushes it, and the crushing ability can be further increased.

Since the crushing capacity is dramatically increased as described above, the hydraulic cylinder 13 can be downsized, and the cost of the crushing device can be reduced. This series of operations can be performed with almost no vibration or noise.

Also, at the same time as crushing, the movable blade 10 on the base side of the movable jaw main body 3 and the fixed blade 1 on the base side of the fixed blade rod 6a
1, the reinforcing bars present in the concrete block can be cut by appropriate shearing action, making it possible to create a finer concrete block, eliminating the need for separate cutters, etc. as in the past, and achieving the above-mentioned good crushability and this The shearing blades act synergistically to greatly increase the crushing efficiency, and there is a great advantage that both crushing and cutting can be done at the same time using the same crushing device.

In particular, unlike the case where the large push-splitting blade 22 bites into the object in a wedge shape and acts as a concentrated load, causing crushing, the shearing action of a small hydraulic drive force can achieve extremely good crushing. Can crush crushed materials finely.

In this way, the large push-splitting blade 22 is different from a conventional sharp protrusion, and its entire half-periphery acts as a blade, making it durable for long-term use and economical.

Next, in the invention of claim 2, in the configuration of the invention of claim 1, the rear of the large push-splitting blade 22 located approximately in the center of the bottom surface of the tip of the movable jaw main body 3 has an abacus bead with a small diameter approximately halved. Small push splitting blade 25
A plurality of sharp teeth 5, 5, .
Instead, by providing a plurality of small pushing splitting blades 25 on the left and right sides of the movable jaw main body 3, the teeth of the movable jaw main body 3 are all composed of an abacus bead-shaped large pushing splitting blade 22 and a small pushing splitting blade 25, The sharp outer periphery acts as a concentrated load and can easily cause cracks in the object to be crushed in the longitudinal direction (longitudinal direction of the movable jaw main body 3), making crushing extremely easy and greatly improving the efficiency of crushing work. and can be improved.

In addition, if the tip connecting main plate 9 is provided at the tip of the solid jaw main body 6, cleaning work such as collecting fine concrete lumps in one place is also possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention, FIG. 2 is a partial perspective view of a movable jaw body of the first embodiment of the present invention, and FIG. 3 is a fixed jaw of the first embodiment of the present invention. A partial perspective view of the main body, FIG. 4 is a sectional view of essential parts of the first embodiment of the present invention, FIG. 5 is a sectional view of the movable jaw main body and fixed jaw main body of the first embodiment of the present invention, and FIG. 6 7 is a partial perspective view of a movable jaw main body according to a second embodiment of the present invention, and FIG. 8 is a sectional view of a main part of the second embodiment of the present invention. . 1... Outer casing, 3... Movable jaw body, 5, 7... Sharp teeth, 6... Fixed jaw body, 6a... Fixed blade rod, 1
0...Movable blade, 11...Fixed blade, 13...Hydraulic cylinder, 22...Large push splitting blade, 23...Protrusion, 24...Bifurcated blade, 25...Small push splitting blade.

Claims (1)

[Scope of Claims] 1. The base of a movable jaw body is pivotally supported on an outer casing, and a fixed jaw body corresponding to the movable jaw body is fixed to the outer casing, and a plurality of The movable jaw body has downward pointed teeth protruding, and a large push-splitting blade made of a large-diameter abacus bead roughly halved is installed approximately at the center of the bottom surface of the tip of the movable jaw body along the swinging surface of the movable jaw body. Protrusions with a sharp cross section are continuously provided at the rear, the fixed jaw body is made up of three fixed blade rods provided with a plurality of upwardly pointed teeth, and the movable jaw body is swingable by a hydraulic cylinder, When the movable jaw body is closed, the large push-splitting blade is formed as a bifurcated blade into which the large push-splitting blade can be inserted into the tip side of the fixed blade rod at the center position, and the fixed blade rod is adjacent to the sharp teeth on the left and right sides of the movable jaw body. A movable blade and a fixed blade are fixed to the base side of the movable jaw body and the base side of the fixed blade rod, respectively, so that they can cut by shearing action. crushing equipment. 2. The base of the movable jaw body is pivotally supported on the outer casing, and the fixed jaw body corresponding to the movable jaw body is fixed to the outer casing, and a large diameter abacus bead is attached to the tip of the movable jaw body approximately at the center of the lower surface. A large push-splitting blade roughly halved is provided along the swinging surface of the movable jaw body, and behind it a plurality of small push-splitting blades that are roughly halved from a small diameter abacus bead, and on the left and right sides of the lower surface of the movable jaw body. is provided with a plurality of small push splitting blades, the fixed jaw body is made up of three fixed blade rods, the movable jaw body is made swingable by a hydraulic cylinder, and when the movable jaw body is closed, the fixed blade at the central position The large push-splitting blade is formed as a bifurcated blade into which it can be inserted on the tip side of the rod, and the small push-splitting blades on the left and right sides of the movable jaw main body are provided so as to be located between the adjacent fixed blade rods, and the movable jaw A crushing device characterized in that a movable blade and a fixed blade are fixed to the base side of a main body and the base side of a fixed blade rod, respectively, and can be cut by shearing action.