JP2013249680A - Support location mounting structure for crush-related machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily replace a clip-like part, to also easily perform maintenance or the like of a trust liner location and further to remarkably improve working efficiency of a crush-related machine.SOLUTION: A crush-related machine comprises a crush-related machine body 1 and a clip-like part A as a movable cutting part 2 capable of cutting steel frames or as movable jaws 3 with a crushing body 37 capable of crushing reinforced-concrete, and is supported 5 through a large bolt 54 to a base-side boss part 51. Between both side surfaces of the base-side boss part 51 and both side surfaces of a main body base-side boss part 11 of the crush-related machine body 1, an annular, metallic and hard trust liner 53 is disposed. The thrust liner 53 is fixed by a plurality of reamer pins 532 while being fixed to the side of the crush-related machine body 1 or the clip-line part A by a plurality of screws.

Description

  According to the present invention, the thrust liner is appropriately fixed to the side surface of the main body base side boss portion of the crushing related machine main body or the side surface of the base side boss portion of the pinching portion, so that the pinching portion can be easily replaced. Further, the present invention relates to a shaft support location mounting structure in a crushing related machine that can easily perform maintenance of the thrust liner location and can dramatically improve the operation efficiency of the crushing related machine.

  Conventionally, it has not been possible in a short time to replace the mounting claws as the pinching portion of the crusher (maintenance, etc.). This is because not only the mounting claws are mounted on the crusher main body but also a great force is applied, so that thrust liners are interposed on the left and right sides of the mounting claws. The thrust liner is not only composed of a hard material such as tool steel, but is generally assembled with a fit of 0.5 mm or less.

  In such a configuration, in order to replace the shaft rod (large bolt), when the four holes on both sides of the crusher body and the holes on both thrust liners are coaxial, the shaft rod Is to penetrate. This replacement operation is extremely troublesome.

In particular, if the entire crusher is several tens of KgF (several N), it is easy for one person. If it is several tons or more, it is not only dangerous, but it takes a lot of time to align the center, it takes several hours, it can not be done at the site of dismantling, and it can be taken back to the factory and work sometimes Met. As described above, when it takes several hours, the work operation efficiency is halved at the work site.

  In addition, the applicant has developed a small crusher and has applied for it (Patent No. 4777478), but in this case, the aim was to simplify the replacement, so a cylindrical bush This is a structure in which the portion and the thrust liner portion are integrated. That is, the bush a with a hook [see FIG. 7A], and this patent is as shown in FIG.

  In this case, as shown in FIG. 7 of the prior art, it has to be manufactured from a solid member b, and there is a problem that the cost is considerably high. In this case, when crushing work is performed, a breakage such as wrinkles occurs when cutting or crushing because a very large force is applied to the corners of the bushed bush a [arrows in FIG. 7A]. Sometimes it happens. This is because a force of about three times or more is inevitably applied to the corner portion of the collar portion, which is the end portion, rather than the intermediate position of the bush.

Japanese Patent No. 4777478

  For this reason, even if it is the crushing related machine which is several tons or more combining the pinching part as a mounting nail | claw and the crushing related machine main body, the problem (technical problem or objective etc.) which this invention is going to solve It is easy and quick to replace the pinched part, and the maintenance of the thrust liner location can be simplified, and the operating efficiency of the crushing machine can be dramatically improved. It is to be.

  Accordingly, as a result of earnestly and researched by the inventor to solve the above-mentioned problems, the invention according to claim 1 is divided into a crushing related machine body, a movable part for cutting that can cut a steel frame, or a movable jaw with a crushed body that can crush reinforced concrete. And a crushing-related machine that is pivotally supported by a base-side boss portion of the pin-like portion via a large bolt, and a cylindrical bush is fitted in the base-side boss portion of the pin-like portion An annular metal and hard thrust liner is disposed between both side surfaces of the base side boss portion and both side surfaces of the main body base side boss portion of the crushing related machine body, and the thrust liner is The thrust liner is fixed to a peripheral edge by a plurality of screws on either side of the crushing-related machine main body or the pinched portion, and the thrust liner cannot be rotated by a plurality of reamer pins on the peripheral edge of the thrust liner. As the crushing related machine book Or, it is fixed to either side of the pinched portion, and the thrust liner is attached to the main body of the crushing related machine. Solved.

  According to a second aspect of the present invention, in the first aspect, the thrust liner is fixed to both side surfaces of the main body base side boss portion of the crushing related machine main body with the plurality of screws, and the plurality of reamer pins are also The above-mentioned problems have been solved by adopting a pivot support mounting structure in a crushing related machine, characterized in that it is fixed to both side surfaces of the main body base side boss part of the crushing related machine main body. According to a third aspect of the present invention, in the first aspect, the thrust liner is fixed to both side surfaces of the base-side boss portion of the pinched portion with the plurality of screws, and the base-side boss portion of the pinched portion The above-mentioned problems have been solved by adopting a shaft support location mounting structure in a crushing related machine characterized by being fixed to both side surfaces of the crushing machine.

  A fourth aspect of the present invention is the crushing according to any one of the first, second, and third aspects, wherein the inner diameter portion of the thrust liner is formed to be larger than the inner diameter portion of the bush. The above-mentioned problem has been solved by adopting a pivot support mounting structure in the related machine. According to a fifth aspect of the present invention, in any one of the first, second, and third aspects, the reamer pin includes a normal diameter portion and an enlarged portion, and the normal diameter portion is formed in the hole portion of the thrust liner. Parts are respectively inserted into holes formed on both side surfaces of the main body base side boss portion of the crushing-related machine main body or holes formed on both side surfaces of the base side boss portion of the sandwiched portion. The above-mentioned problem has been solved by adopting a pivot support mounting structure in the crushing related machine.

  The invention according to claim 6 is characterized in that, in claim 5, the tip position of the normal diameter portion of the reamer pin is configured to be inside the upper end position of the hole portion of the thrust liner. The above-mentioned problems have been solved by adopting a shaft support location mounting structure in the machine. The invention according to claim 7 is characterized in that the thrust liner according to any one of claims 1, 2, 3, 4, 5 or 6 is carburized on the front side and the back side. The above-mentioned problems have been solved by adopting a shaft support location mounting structure in the machine.

  According to an eighth aspect of the present invention, in any one of the first, second, third, fourth, fifth, and sixth aspects, the thrust liner is carburized only on one of its front side and rear side. The other surface is subjected to a carbon-proof treatment, and the surface subjected to the carbon-proof treatment is fixed to the side surface of the main body base side boss portion of the crushing related machine main body or the side surface of the base side boss portion of the pinched portion. The above-mentioned problems are solved by using the shaft support location mounting structure in the crushing related machine characterized in that it is formed.

  In invention of Claim 1, even if it is a crushing related machine which is several tons or more combining the pinching part as a mounting claw and the crushing related machine body, it is extremely difficult to replace the pinching part. It has the maximum effect that it is simple and can be done in a short time. Furthermore, unlike a bush with a bush, the structure can be made inexpensive while providing strength. It can be said that the crusher industry can be changed by such a simple work, which is a revolution in the crusher industry.

  That is, the replacement of the pinched portion can be performed in a short time at the work site, so that the crushing-related work can be performed immediately, and the operation efficiency of the crushing related machine can be greatly improved. Furthermore, after replacement of the pinched portion, only one of the side surface of the base side boss portion of the pinched portion or the side surface of the main body base side boss portion of the crushing related machine main body is worn, and maintenance etc. There is an advantage that the management can be simplified as compared with both wears.

  According to the second aspect of the present invention, only the both side surfaces of the base side boss portion of the sandwiched portion are worn after the replacement of the sandwiched portion, and management such as maintenance can be simplified. In the invention of claim 3, only the both side surfaces of the main body base side boss portion of the crushing related machine main body are worn after replacement of the sandwiched portion, and maintenance and the like can be managed well. Furthermore, in the invention of claim 4, even if the pinch-shaped portion as the mounting claw is caused to have a large twisting action depending on how it is used, the force can be prevented from being derived from the inner diameter portion of the thrust liner, and the structure is strong. Can be secured.

  The invention according to claim 5 has an advantage that the thrust liner can be prevented from coming off at all even if vibration or the like repeatedly occurs. In invention of Claim 6, it can make it harder to remove | deviate, and there exists an effect similar to Claim 5. The invention of claim 7 has an advantage that wear of the thrust liner can be minimized. In the invention according to claim 8, the other surface of the thrust liner is subjected to a carbon-proof treatment, and the surface subjected to the carbon-proof treatment is a side surface of a main body base side boss portion of the crushing related machine main body or a base portion of the pinched portion. By being fixed to the side surface of the side boss portion, the wear surface can be made strong, and in particular, the thrust liner itself can be made hard to break and strong because the fixing surface side is treated with a carbon-proof treatment. There are advantages.

(A) is a front view of 1st Embodiment of this invention, (B) is an Y1-Y1 arrow expanded sectional view of (A). (A) is a front view of a second embodiment of the present invention, (B) is a perspective view of a large bolt and a large nut, and (C) is an enlarged cross-sectional view taken along arrow Y2-Y2 of (A). (A) is sectional drawing which separated the pivotal support part of a large volt | bolt, (B) is the state of the assembly completion of (A), or the enlarged view of (a) part of FIG. 1 (B). (A) is an enlarged perspective view of the separated main member of the pivot support portion of the large bolt, (B) is an enlarged perspective view of the separated reamer pin portion, and (C) is an enlarged perspective view of the completed reamer pin insertion. (A) is a cross-sectional view of the base portion of the crushing-related machine body, (B) is a cross-sectional view in which the base portion of the sandwiched portion is partially separated, and (C) is a cross-sectional view in which large bolts and large nut-related members are separated. (A) is the expanded state figure which the pivot support location of the large volt | bolt of another embodiment isolate | separated, (B) is the state figure which the assembly of (A) completed. (A) is a relational view that the front view of the third embodiment of the present invention and other pinched portions can be exchanged. (A) is a perspective view in which a bush with a hook is cut in half, and (B) is a perspective view of a block of material before processing (A).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIGS. 1A and 2A are external views of the present invention. Specifically, as shown in FIG. 1 (A) and FIG. 2 (A), the main body base side boss portion 11 of the crushing-related machine main body 1 that performs crushing or split chestnut, and the pinched portions A and A Further, the shafts 5 and 5 are supported via shaft shafts, and the sandwiched portions A and A are configured to be swingable by the expansion and contraction of the hydraulic cylinders 7 and 7.

  There are three types of the pinched portion A in the embodiment. That is, the movable movable parts 2 and 2 for cutting a steel frame [see FIG. 1A], the movable jaws 3 and 3 with a crushed body capable of crushing reinforced concrete [see FIG. 2A], or the small crushing part 4A. , 4B (see FIG. 7). There may be others. The cutting movable parts 2 and 2 are provided as symmetrical members. That is, the cutting movable part 2 is composed of a hook-like part 21 on the distal end side and an opposing straight part 22 on the base part 20 side. The hook-shaped portion 21 is composed of a tip inclined portion and a gently inclined portion.

  The two cutting movable parts 2 and 2 are pivotally supported 5 at the base part 20 and have a predetermined interval L. Further, a tip-side cutting blade 25 and a cutting blade 26 are mounted on the hook-shaped portion 21 and the straight-shaped portion 22 of the cutting movable portion 2, respectively. At this time, the blade surface is mounted at a position where the blade surface is slightly retracted (for example, about several mm) from the thick portion of the opposed surface of the flange-shaped portion 21 and the straight-shaped portion 22 as viewed in plan.

  The cutting blade 26 is fixed to the L-shaped portion on the inner surface of the straight portion 22 with a fixing tool such as a bolt. Further, the distal end side cutting blade 25 is also fixed to the hook-like portion 21 in the same manner as the cutting blade 26. The cutting blade 26 has a substantially rectangular parallelepiped shape and has a thick bar shape, and four corners of a rectangular cross section each serve as a cutting blade surface. That is, when the cutting blade surface is sharpened by use, the remaining three corners are used as appropriate.

  Furthermore, when trying to cut a steel frame (H-shaped steel or the like) lying on the ground, the longitudinal direction of the steel frame and the both sides are opened from the upper part of the steel frame with both the cutting movable parts 2 and 2 opened. The steel cutting machine according to the present invention is positioned so that the cutting movable parts 2 and 2 are substantially perpendicular to the virtual operation plane in which the cutting movable part 2 is openable and closable, and the tip of the hook-like part 21 is placed between the steel frame and the ground. When the two cutting movable parts 2 and 2 are closed so as to slip, the steel frame is naturally lifted to the upper side (in the direction of the front end side cutting blade 25 and the cutting blade 26), and the cutting is always performed at the blade portion to be cut. Therefore, the steel frame is easily cut.

  Further, as shown in FIG. 2, the movable jaws 3, 3 with the crushed bodies 37, 37 capable of crushing reinforced concrete have a substantially triangular shape, and a tip portion 31 and a base portion 32 are formed. There are 5 branches. The lower end of the cylinder cylinder 7a of the hydraulic cylinder 7 is supported at the lower end pivot 6a at 33 locations on the outer side of the movable jaw 3. Further, the upper end of the piston rod 7b of the hydraulic cylinder 7 is supported by the upper end pivot 6b at the upper end portion of the crushing related machine main body 1. The opposing movable jaws 3, 3 are configured to open and close by the expansion and contraction of the piston rods 7b, 7b of the hydraulic cylinders 7, 7.

  An abacus crush body 37 is fixed to the distal end portion 31 of the movable jaw 3. That is, when both the movable jaws 3 and 3 with the crushing bodies 37 and 37 which oppose are open / close-moved, the basic concrete of the to-be-crushed object S can be clamped and it can crush, peeling off the surface concrete. Specifically, the crushed body 37 generally has a shape in which the abacus bead is approximately halved.

  Even if both movable jaws 3 and 3 configured in this way are closed, the tips of the two crushed bodies 37 and 37 are configured not to contact each other. Further, at the intersections of the movable jaws 3 and 3 on the side of the bases 32 and 32, steel wire rod cutting parts 34 and 34 such as reinforcing bars are provided. Accordingly, the cutting portions 34 and 34 are swung so as to intersect with each other, thereby performing a cutting action.

  As the sandwiched portion A, there are asymmetrical small crushing portions 4A and 4B for splitting that can crush the crushed concrete lump further finely. The base portion 42 and the intermediate shaft support portion 43 of the split crushing portions 4A and 4B are configured in the same manner as the base portion 32 and the intermediate shaft support portion 33 of the movable jaw 3, so that they can be freely exchanged with other pinched portions A. It is configured.

  In the asymmetric small crushing portions 4A and 4B, cutting blades 44 and 45 are provided at the tip 41 and the inner middle of the small crushing portion 4A. On the other hand, a groove is formed at the tip of the corresponding crushing portion 4B, and the cutting blade 45 located in the middle maintains a floating state even when it is closed. The work which crushes a concrete block further finely can be performed.

  Further, the tip of the piston rod 7b provided on the cylinder cylinder 7a of the hydraulic cylinder 7 (upper side in FIG. 1A) is pivotally supported at both ends of the crushing-related machine body 1 by the upper end pivot 6b, and A lower end pivot 6a is swingably supported at a body base side boss portion 11 (lower side in FIG. 1A) of the cylinder cylinder 7a of the hydraulic cylinder 7 and an intermediate portion of the sandwiched portion A.

  As shown in FIG. 3 and FIG. 5, the main body base side boss part 11 of the crushing related machine main body 1 and the base side boss parts 51, 51 of the sandwiched parts A and A are pivotally supported 5 so as to be swayable. Yes. As the shaft support 5 structure, as shown in FIG. 3, cylindrical bushes 52 are inserted and fixed from both sides in the base side boss portion 51, respectively. Further, metal and hard thrust liners 53 and 53 as annular disks are attached to both side surfaces of the base side boss portion 51.

となっている。 As shown in FIG. 5B, the thrust liner 53 is attached to both sides of the base-side boss portion 51 of the sandwiched portion A with a plurality of screw portions 531 and a plurality of reamer pins 532. That is, they are integrated after assembly. Further, D1 of the inner diameter portion 53a of the thrust liner 53 is formed to be larger than D2 of the inner diameter portion 52a of the bush 52.
That is,

It has become.

  As shown in FIGS. 3A and 3B, the reamer pin 532 includes an enlarged portion 532a and a normal diameter portion 532b. The enlarged portion 532a is inserted into holes 51c formed on both sides of the base side boss portion 51, and the normal diameter portion 532b is in a state where there is almost no gap in the hole 53c formed in the thrust liner 53. Has been inserted. That is, it is attached in a reamer state.

  The reamer pins 532 are two places (diameter direction positions) in the circumferential direction of the thrust liner 53 (see FIG. 4A), but may be further increased to three places. The reamer pin 532 serves to prevent the base-side boss 51 of the pinched portion A from being loosened against all external forces such as vibration and twisting action.

  Further, the plurality of screw portions 531,... Are arranged in the circumferential direction of the thrust liner 53 through hole portions 53b provided at a plurality of locations [four locations in the radial direction: see FIG. The screw hole 51b formed in the base side boss 51 is screwed. The plurality may be increased or decreased as appropriate.

  Further, in the bush 52, as shown in FIG. 5 (C), a shaft flange portion 541 of a large bolt 54 is provided at a lower end of the crushing related machine main body 1 with a predetermined interval L and shaft supports 5, 5. Has been. A bolt head 542 is formed at the end of the shaft flange portion 541 of the large bolt 54, and a screw portion 541c is provided at the other end of the shaft flange portion 541. The large nut 543, the detent plate 544, the washer plate 545, a plurality of Small bolts 546 are provided. The small bolt 546 is configured to be appropriately tightened to the shaft end of the large bolt 54.

  In particular, thrust liners 53 and 53 are provided on both sides of the base-side boss part 11 of the crushing-related machine body 1 and the base-side boss part 51 of the sandwiched part A by a plurality of screw parts 531 and a plurality of reamer pins 532. With the inner diameter portion 52a of the bush 52 in the fixed state as the same axis, the large bolt 54 is inserted, a large nut 543, a detent plate 544, a washer plate 545, and a small bolt 546 are mounted, and the shaft support Five locations are configured.

  In addition, the rear end of the crushing-related machine main body 1 (upper side in FIG. 1 (A), upper side in FIG. 2 (A)) is provided with a revolving body C that can be rotated at an appropriate angle and stopped at that position. The object to be crushed S is cut or crushed at the best angle. In the revolving structure C, a hydraulic motor for appropriately driving the revolving structure C is incorporated.

  Further, the crushing blade line of the crushing body 37 of the movable jaws 3 and 3 with the crushing bodies 37 and 37 in FIG. 2 is formed so as to face the longitudinal direction of the movable jaw 3. It may be formed with a slight length and a pointed tip. In such a case, it is possible to crush an appropriate portion of an object to be crushed (such as a column or a beam) such as RC reinforced concrete.

  Further, as shown in FIG. 6, the thrust liner 53 is disposed on both inner sides of the main body base side boss portion 11 of the crushing related machine main body 1 as shown in FIG. 6 (A). The plurality of screw parts 531 and the plurality of reamer pins 532 are attached. That is, the main body base side boss portion 11 of the crushing related machine main body 1 and the thrust liner 53 are integrated after assembly. This detailed description is described in the above paragraphs [0025] to [0030], and the description thereof is omitted.

  In particular, in the case of FIG. 6, the main body base side boss portion 11 of the crushing related machine main body 1 and the thrust liner 53 are integrated, and after enduring use for many years, the sandwiched portion A is replaced. When this occurs, the worn parts are on both sides of the base side boss part 51 of the sandwiched part A, so that the workability is different from the narrow part of the inside of the main body base side boss part 11 of the crushing related machine body 1. Has the advantage of being easy to maintain.

  In addition, as shown in FIG. 3A, the thrust liner 53 is carburized and so-called quenched on the entire surface (see the point display portion on the surface in FIG. 3A). Thus, the surface is heat-treated to a hardness, making it difficult to reduce against wear, but when a strong force acts on the other surface, there may be a disadvantage that the surface is easily cracked.

  Further, only one of the front side and the back side is carburized, and the other side is carburized (see the point display area on the front surface in FIG. 6A) and carburized. When the surface is fixed to the side surface of the main body base side boss portion 11 of the crushing related machine main body 1, strong stickiness is also maintained, and it is possible to be strong against cracking.

A ... sandwiching part, 1 ... crushing related machine main body, 11 ... main body base side boss part, 2 ... movable part for cutting,
3 ... movable jaw, 37 ... crushed body, 5 ... shaft support, 51 ... base side boss, 52 ... bush,
53 ... Thrust liner, 54 ... Large bolt, 531 ... Screw part, 532 ... Reamer pin.

Claims (8)

  Crushing related machine body, movable part for cutting that can cut steel frame or sandwiched part as movable jaw with shredded body that can break reinforced concrete, and supported on the base boss part of the sandwiched part via a large bolt In the crushing related machine, a cylindrical bush is fitted in the base side boss part of the sandwiched part, and both side faces of the base side boss part and both side faces of the main body base side boss part of the crushing related machine body An annular metal and rigid thrust liner is disposed between the two, and the thrust liner is fixed to either the crushing-related machine main body or the pinched portion with a plurality of screws on the periphery. The thrust liner is fixed on either side of the crushing-related machine body or the pinched portion so that the thrust liner cannot be rotated by a plurality of reamer pins, and the thrust liner is The crushing function Axis 支箇 plant mounting structure in a crushing relevant machine, characterized by comprising attached to the machine body.   2. The thrust liner according to claim 1, wherein the thrust liner is fixed to both side surfaces of a main body base side boss portion of the crushing related machine main body by the plurality of screws, and the plurality of reamer pins are also a main body base of the crushing related machine main body. A shaft support location mounting structure in a crushing-related machine, characterized by being fixed to both side surfaces of a side boss portion.   2. The thrust liner according to claim 1, wherein the thrust liner is fixed to both side surfaces of the base-side boss portion of the sandwich-shaped portion with the plurality of screws, and is fixed to both side surfaces of the base-side boss portion of the sandwich-shaped portion. A structure for mounting a pivotal support in a crushing-related machine.   The shaft support location mounting in the crushing related machine according to any one of claims 1, 2, and 3, wherein the inner diameter portion of the thrust liner is formed to be larger than the inner diameter portion of the bush. Construction.   4. The reamer pin according to claim 1, wherein the reamer pin includes a normal diameter portion and an enlarged portion, the normal diameter portion is a hole portion of the thrust liner, and the enlarged portion is the crushing related machine main body. A shaft in a crushing-related machine, wherein the shaft is inserted into holes formed on both side surfaces of the main body base side boss portion or holes formed on both side surfaces of the base side boss portion of the sandwiched portion. Support location mounting structure.   The shaft support location mounting structure in the crushing related machine according to claim 5, wherein the tip position of the normal diameter portion of the reamer pin is configured to be inside the upper end position of the hole portion of the thrust liner. .   The shaft support location mounting structure in a crushing-related machine according to any one of claims 1, 2, 3, 4, 5, or 6, wherein the thrust liner is carburized on the front side and the back side. .   The thrust liner according to any one of claims 1, 2, 3, 4, 5, and 6, wherein only one of the front side and the back side is carburized and the other side is carburized. And the surface subjected to the anti-carburizing treatment is fixed to the side surface of the main body base side boss portion of the crushing related machine main body or the side surface of the base side boss portion of the sandwiched portion. Shaft support installation structure for crushing related machines.

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