WO2016052829A1 - Rotation shaft assembly for scissors-type bucket apparatus with improved assembly and scissors-type bucket apparatus having same - Google Patents

Abstract

The present invention relates to a rotation shaft assembly for a scissors-type bucket apparatus which, to cross-link a pair of scissors arms so as to be rotatable, adopts a sliding-and-rotation type rotation member with easy disassembly and replacement instead of a bearing which is permanently fixed, and which minimizes the number of components to maximize the assembly thereof, and a scissors-type bucket apparatus having the same, said rotation shaft assembly for a scissors-type bucket apparatus comprising: an installation pipe fixed to a first scissors arm; a rotation member comprising a bush fixed to the installation pipe and a rotation wheel installed so as to be slidably rotatable relative to the bush; a central shaft connected to an end of the rotation shaft in a straight line passing through the rotation wheel, a second scissors arm and an auxiliary arm so as to rotate along with the rotation wheel, the second scissors arm and the auxiliary arm; a fixation ring which is configured to be force-fit into a gap formed between the outer circumferential surface of an end part of the rotation shaft and the second scissors arm; a cover plate which is configured to pressurize the fixation ring from the outer side surface of the second scissors arm to be force-fit; a plurality of longitudinal axis pins which are installed in the circumferential direction of the central shaft, said plurality of longitudinal axis pins passing through the auxiliary arm, the rotation wheel, and the second scissors arm to the cover plate to be assembled together; and pressurization nuts which are connected to the front ends of the longitudinal axis pins to fix the longitudinal axis pins and cause the cover plate to pressurize the fixation ring.

Description

Rotary shaft assembly for scissor bucket device with improved assembly and scissor bucket device with same

The present invention relates to a scissor bucket device, and in particular employs a rotating member of a sliding rotation type that can be easily removed and replaced in place of a permanently fixed bearing to rotatably cross-couple a pair of Scissor arms. The present invention relates to a rotating shaft assembly for a scissors bucket device which minimizes the number of parts and maximizes assembly and a scissors bucket device having the same.

In general, the Caesars bucket device is a device that is used to move to a certain position after collecting the heavy objects and heavy moving objects such as sand, gravel, waste metals, grains, etc. made of two arms with the bucket is crossed like scissors. It is called.

Such a scissors bucket device has a shorter cycle time than other types of bucket devices, such as a shorter working time and a high efficiency, simple structure, and excellent maintainability. For example, the Caesar's bucket device is used as a facility for unloading raw materials at the raw material pier of POSCO, a representative Korean company.

Thus, Figure 1 is a reference diagram for explaining the scissors bucket device according to the prior art.

As shown, in the scissors bucket device according to the prior art, a pair of scissors arms 22a, 22b provided with buckets 21a, 21b at the lower end thereof are rotatably coupled in an intersecting form.

Here, in order to rotatably couple the pair of Caesar's arms 22a and 22b in an intersecting form, the bearing 12 and the bearing 12 are formed at the intersection between the pair of Caesar's arms 22a and 22b. Rotating shaft 11 penetrating the inner ring of is installed. That is, the outer ring of the bearing 12 is fixed to one of the first scissors arm 22a and the second scissors arm 22b by welding, and the bearing 12 is fixed to the other one of which the bearing 12 is not fixed. The rotating shaft 11 in the state which penetrated the inner ring of was fixed. Alternatively, a bearing 12 is provided on both the first scissors arm 22a and the second scissors arm 22b so that the outer ring is fixed by welding, and the rotary shaft 11 penetrating the inner ring of the bearing 12 is provided. The configuration to be installed was also possible.

In the case of such a scissors bucket device, the load is concentrated on the bearing 12 installed at the center of the cross-linking site and the operating part due to the heavy load of several tens of tons, and the damage occurs periodically. However, the task of separating and replacing only the bearing 12 permanently fixed by welding from the scissors arms 22a and 22b was extremely difficult. Therefore, the damaged bearing 12 was not immediately replaced in the field, and the entire Caesars bucket device was transported to the factory, and the first Scissors arm 22a and the second Scissor arm 22b were damaged in the process of replacing the bearing 12. This inevitable problem has been caused. Moreover, in some cases only one bearing 12 could not be replaced, so the entire Caesars bucket device had to be replaced with a new one.

In order to solve such problems of the prior art, the applicant has filed and registered a 'Rotational shaft assembly for a scissors bucket device and a scissors bucket device having the same' (Application No. 10-2012-0023411) on March 7, 2013. There is a bar.

This patented technology allows the bearings that rotatably cross-couple the pair of scissors arms to be easily removed instead of permanently fixed by welding, thereby replacing them with new ones without damaging or replacing the scissors arms when the bearings are damaged. It has been well received for its ability to do so.

However, some concerns have been raised that the rotating shaft assembly according to the application technology may cause the second scissors arm and the secondary arm to be distorted if they are used for a long time in actual field. Since the parts to be joined are made almost independently, it is difficult to attain angles to each other in the assembling process, and thus there is a problem that the overall assemblyability is poor.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to replace and replace a bearing that is permanently fixed to rotatably cross-couple a pair of scissors arms. The present invention provides a rotating shaft assembly for a scissor bucket device that minimizes the number of parts and maximizes assembling while employing a rotating member of an easy sliding rotation method, and a scissor bucket device having the same.

In order to achieve the above object, a rotary shaft assembly for a scissors bucket device according to the technical spirit of the present invention includes: an installation tube fixed to the inner side by drilling the first scissors arm; A rotating member comprising a bush fixed in close contact with the inner circumferential surface of the installation tube, and a rotating wheel installed to be relatively slidably rotatable with respect to the bush in the bush; A pair of spacer plates disposed in close contact with inner surfaces of the first scissor arm and the auxiliary arm in a position corresponding to the mounting tube to position the mounting tube and the rotating member therebetween; Coupled to penetrate the rotary wheel, the pair of spacer plates, the second scissors arm and the auxiliary arm to rotate together with the rotary wheel, the pair of spacer plates, and the second scissors arm and the auxiliary arm; A central shaft fastened in a straight line to an end of the rotating shaft; A fixing ring forcibly fitted into a gap formed between an outer circumferential surface of the central shaft end portion and an inner circumferential surface of the central shaft through hole of the second scissor arm and the spacer plate tightly fixed thereto; A cover plate configured to press the fixing ring against the outer side of the second scissors arm to press the locking ring; A long shaft pin installed in a circumferential direction around the central axis and bundling through the pair of separation plates and rotating wheels from the auxiliary arm to the second scissor arm and the cover plate and being bundled together; It is characterized in that it comprises a pressing nut which is fastened to the front end of the long shaft pin to fix the long shaft pin and guide the cover plate to press the fixing ring.

Here, the first mounting ring for mounting the cover plate therein is fixed to the outer surface of the second scissor arm, the first mounting ring can surround the plurality of pressing nuts with the cover plate. It may be formed in a thickness.

In addition, the second mounting ring is further provided in close contact with the outer surface of the auxiliary arm in a position corresponding to the first mounting ring, the head of the long shaft pin is restrained in contact with the inner peripheral surface of the second mounting ring It may be characterized in that it is formed in a angular form so as not to rotate.

In addition, the thickness of the second mounting ring is formed to be the same as the thickness of the long shaft pin head, it may be characterized in that formed thinner than the thickness of the first mounting ring.

In addition, the inner circumferential surface of the central shaft through hole of the second scissor arm and the spacer plate closely fixed thereto is formed to be wider than the central hole through hole of the rotary wheel, and the central axis is gradually narrower in outer diameter toward the distal end surface of the distal end thereof. A first inclined portion, and the fixing ring has a second inclined portion whose inner diameter gradually widens to correspond to the first inclined portion on an inner circumferential surface thereof, and as the rotary wheel is pushed by the cover plate, The second scissors and the through-hole inner circumferential surface of the spacer plate closely fixed thereto may be more strongly interposed.

In addition, a protruding portion extending from the narrowest portion of the first inclined portion is formed at the distal end of the central shaft, and the fitting ring is formed with a fitting portion extending from the second inclined portion to surround the outer portion of the protruding portion of the central shaft. The insertion portion of the fixing ring surrounding the protrusion of the central axis may be inserted into the central shaft through hole of the cover plate.

In addition, the pair of spacer plate and the installation tube is formed to have the same outer diameter, it may be characterized in that a pair of blocking ring is installed to prevent the penetration of foreign matter along the gap facing the spacer plate and the installation tube. have.

The rotating shaft assembly for the scissors bucket device and the scissors bucket device having the same according to the present invention is a sliding rotation type that can be easily removed and replaced in place of a permanently fixed bearing to rotatably cross-couple a pair of scissors arms. While employing a rotating member, it is possible to minimize the number of parts and maximize the assembly.

In addition, the present invention is very easy to position in the assembly process by a plurality of long-axis pins for coupling the second scissors and the secondary arm in association.

In the present invention, since the second scissors arm and the auxiliary arm are assembled in a state in which the second arm is connected by the long axis pin, there is no need to worry that the second scissors arm and the auxiliary arm are twisted with each other even when used for a long time.

1 is a reference diagram for explaining the scissors bucket device according to the prior art.

Figure 2 is a use state showing a state in which the rotating shaft assembly according to an embodiment of the present invention installed in the scissors bucket device

Figure 3 is an exploded perspective view for explaining the configuration of the rotary shaft assembly according to an embodiment of the present invention

Figure 4 is a cross-sectional view of the assembled state for explaining the configuration of the rotary shaft assembly according to an embodiment of the present invention

5 is a reference view showing the components coupled to the first scissors arm of the rotary shaft assembly according to an embodiment of the present invention;

6 is a reference view showing the components coupled to the first scissors arm of the rotary shaft assembly according to an embodiment of the present invention;

7 and 8 is a series of cross-sectional reference for explaining the assembly process of the rotary shaft assembly according to an embodiment of the present invention

110: rotating member 111: bush

112: rotating wheel 120: rotating shaft

131: central axis 132: coupling plate

133: retaining ring 134: cover plate

135: long shaft pin 136: pressure nut

210a: First bucket 210b: First Caesars arm

211: installation pipe 220a: second bucket

220b, 220c: Second Caesars Arm, Secondary Arm

With reference to the accompanying drawings will be described in detail a rotating shaft assembly for a scissors bucket device and a scissors bucket device having the same according to embodiments of the present invention. As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structure is shown to be larger than the actual size for clarity of the invention, or to reduce the actual size to understand the schematic configuration.

In addition, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

Figure 2 is a state diagram showing a state in which the rotating shaft assembly according to an embodiment of the present invention is installed in the scissors bucket device.

As shown, the rotating shaft assembly 100 according to an embodiment of the present invention is the first bucket arm 220a is installed at the end of the first bucket 210a, the second bucket 210b is installed at the end and spaced apart from each other In the scissors bucket device having an outer second scissors arm (220b) and the inner auxiliary arm (220c) to operate together, a pair of left and right posts are provided to the first scissors arm (220a) It serves to rotatably couple in the inserted state between the scissors arm 220b and the secondary arm 220c.

Here, the rotating shaft assembly 100 according to an embodiment of the present invention, in place of the bearing that was essentially provided for the rotation operation between the first scissors arm (220) and the second scissors arm (220b) separation, replacement, other It is configured to minimize the number of parts and maximize the assemblage while employing a sliding rotation type rotating member that is easy to combine with the parts.

Accordingly, while the load is concentrated during the rotation operation between the first scissors arm 220a and the second scissors arm 220b, the rotating member, which is expected to be damaged more frequently than other components, can be easily removed and replaced in the field. There is no problem of damaging the first scissors arm 220a or the second scissors arm 220b in the process of replacing the rotating member.

Further, compared to the applicant's previous registered patent 'Rotational shaft assembly for the scissors bucket device and the scissors bucket device having the same' (Application No. 10-2012-0023411), the number of parts is reduced by almost half and the first scissors arm The second scissors arm 220b and the auxiliary arm 220c, which are spaced apart from each other independently of each other (220a), are implemented to have a simple configuration while being connected to each other in combination with each other, thereby greatly improving assembling and the second procedure in long-term use. It is to fundamentally eliminate the problem of twisting between the arm (220b) and the secondary arm (220c).

Hereinafter, the configuration of the rotary shaft assembly 100 according to an embodiment of the present invention will be described in detail. However, the rotating shaft assembly 100 according to an embodiment of the present invention is provided with two in each one in the symmetrical form on the left side and the post in the bucket device, but will be described below for the convenience of description only one of them.

Figure 3 is an exploded perspective view for explaining the configuration of the rotary shaft assembly according to an embodiment of the present invention, Figure 4 is a cross-sectional view of the assembled state for explaining the configuration of the rotary shaft assembly according to an embodiment of the present invention. 5 is a reference view showing components coupled to a first scissors arm of a rotating shaft assembly according to an embodiment of the present invention, and FIG. 6 is a component coupled to a first scissors arm of a rotating shaft assembly according to an embodiment of the present invention. 7 and 8 are a series of reference cross-sectional views for explaining the assembly process of the rotary shaft assembly according to an embodiment of the present invention.

As shown, the rotary shaft assembly 100 according to an embodiment of the present invention, including the rotary shaft 120, the installation pipe 211, the rotary member 110, a pair of spacer plates (222, 224), the center Shaft 131, fixing ring 133, cover plate 134, long shaft pin 135, pressing nut 136, first mounting ring 221 and second mounting ring 223, It includes a pair of blocking ring 151.

The point of note in the overall configuration of the rotary shaft assembly is compared with the applicant's previous patent 'Rotation shaft assembly for the scissors bucket device and the scissors bucket device having the same' (Application No. 10-2012-0023411) The number of parts was reduced by almost half, and in addition to the central axis 131 installed on the extension line of the rotating shaft 120, a plurality of long shaft pins 135 penetrated through the rotating member 110 and the second scissors arm 220b. And the secondary arm 220c are coupled to each other. Due to such a constitutive change, the number of steps for assembly is reduced compared to the previous patent, and assembling is greatly improved such that the angle between the second scissor arm 220b and the auxiliary arm 220c is easily improved. Edo fear that the angle between the second scissors arm 220b and the auxiliary arm 220c is structurally resolved.

Hereinafter, the rotating shaft assembly according to an embodiment of the present invention will be described in detail with respect to each of the above components.

The installation pipe 211 serves as a base for the installation of the rotating member 110. To this end, the installation pipe 211 is fixed by a method such as welding after drilling the first scissors arm 210b. Here, the installation pipe 211 is made of a pipe shape having an inner hollow so that the rotating member 110 can be inserted, the inside corresponding to the diameter of the bush 111 forming the rotating member 110 It is formed in size, and the left and right widths are formed to such an extent that the entire rotation member 110 is not exposed in the inserted state.

The rotating member 110 is installed in a form inserted into the installation pipe 211, the rotary shaft 120 and the central shaft 131 is installed by connecting the second scissors arm 220b and the auxiliary arm 220c. ), The second scissors arm 220b and the auxiliary arm 220c are rotatable with respect to the first scissors arm 210b, that is, a state in which the scissors operation is possible. To this end, the rotating member 110 is composed of a bush 111 that is in close contact with the inner circumferential surface of the installation pipe 211 and a rotating wheel 112 that is installed to be slidably rotatable inside the bush 111. In this case, the bush 111 is installed by dipping into the cryogenic liquid, reducing its volume, and inserting the same into the installation pipe 211. In addition, a plurality of long shaft pin through holes may be formed in the rotary wheel 112 such that the long shaft pin 135 penetrates in a circumferential direction thereof through a central shaft through hole 112a through which the central shaft 131 penetrates in the center thereof. 112b is formed. The remarkable point in the configuration of the rotating member 110 is because it is made of a combination of the bush 111 and the rotating wheel 112, rather than the bearing, the long axis pin through hole so that the long axis pin 135 can pass through It is possible to easily form 112b. (For reference, the through hole formed in the pair of spacer plates 222 and 224, the cover plate 134, the second scissor arm 220b, and the auxiliary arm 220c so that the central axis penetrates with the rotating member 110.) Although the same name is used for the central axis through hole, the reference numerals in the accompanying drawings are divided into 222d, 224d, 134a, 222c, and 224e, respectively. The through hole formed in the pair of spacer plates 222 and 224, the cover plate 134, the second scissor arm 220b, and the auxiliary arm 220c is also referred to as the long axis pin through hole. The reference numerals are divided into 222a, 224a, 134b, 222b, and 224b, respectively.)

The spacer plates 222 and 224 are tightly fixed to inner surfaces facing the first scissor arm 210b and the auxiliary arm 220c at positions corresponding to the mounting pipe 211, respectively, and rotate with the mounting pipe 211. The member 110 is positioned therebetween. In the case of the spacer plates 222 and 224, the central shaft through-holes 222d and 224d through which the central axis 131 penetrates at the center thereof, and a plurality of long shaft pins 135 to penetrate the circumferential direction around the center shaft through holes 222d and 224d. Through holes 222a and 224a are formed.

The central shaft 131 is fastened in a straight line to the end of the rotation shaft 120. To this end, a coupling plate 132 is formed in a disk shape of the rotary shaft 1200 and has a bolt hole 132a at a circumference thereof, and the central shaft 131 is bolted to the coupling plate 132. In addition, the central shaft 131 is coupled to pass through the rotary wheel 112, a pair of spacer plates 222, 224, the second scissors arm 220b and the auxiliary arm 220c. To this end, a central shaft through hole through which the central shaft 131 penetrates the rotary wheel 112, the pair of spacer plates 222 and 224, and the second scissors arm 220b and the auxiliary arm 220c is provided. For reference, these rotary wheels 112, a pair of spacer plates 222 and 224, the second scissors arm 220b and the auxiliary arm 220c, together with the cover plate 134, center the central axis through hole. As a result, a plurality of long axis pin through holes are formed along the circumferential direction.

The fixing ring 133 is a gap formed between an outer circumferential surface of the end portion of the central shaft 131 and an inner circumferential surface of the central shaft through holes 222c and 222d of the spacer plate 222 fixed to the second scissor arm 220b. Being forced on. To this end, the inner circumferential surfaces of the central shaft through holes 222c and 222d of the second scissors arm 220b and the spacer plate 222 fixed to the second scissors arm 220b have a step difference from the center hole through hole 111a of the rotation wheel 112. Widely formed, the central axis 131 has a first inclined portion 131b on the outer peripheral surface of the distal end thereof, the outer diameter of which is gradually narrowed toward the distal end. In addition, the fixing ring 133 has a second inclined portion 133b whose inner diameter is gradually widened to correspond to the first inclined portion 131b on an inner circumferential surface thereof, so that the rotary wheel 112 has the cover plate 134. It is pushed more strongly between the outer circumferential surface of the end portion of the central shaft 131 and the inner circumferential surface of the central shaft through-holes (222c, 222d) of the spacer plate 222 fixedly adhered to the second scissors arm 220b. .

In addition, a protruding portion 131a is formed at a distal end of the central shaft 131 extending from the narrowest portion of the first inclined portion 131b, and the second inclined portion 133b is formed in the fixing ring 133. A fitting portion 133a is formed to extend from) to surround the outside of the protrusion 131a of the central axis 131. The fitting portion 133a of the fixing ring 133 surrounding the protrusion 131a of the central shaft 131 is inserted into the central shaft through hole 134a of the cover plate 134.

The cover plate 134 serves to induce the interference by pressing the fixing ring 133. To this end, the cover plate 134 is located on the outer surface of the second scissors arm 220b in a state inserted into the first mounting ring 221, through the central axis through hole (134a) and the long axis pin through The central axis 131 and the long axis pin 135 penetrate through the ball 134b. According to this configuration, the cover plate 134 moves in a state in which the pressing nut 136 pushes the fixing ring 133 by the pressing nut 136 when the pressing nut 136 is fastened to the distal end of the long shaft pin 135. It is fixed not to be.

The long shaft pins 135 are arranged in the circumferential direction of the center around the central axis 131, and pass through the pair of spacer plates 222 and 224 and the rotary wheels 112 from the auxiliary arm 220c. It penetrates through the second scissors arm 220b and the cover plate 134 and binds them together. The body of the long shaft pin 135 is formed of a smooth body that is not formed with a screw is formed with a male screw so that the pressing nut 136 can be fastened only to the front end thereof. When the long axis pin 135 is provided, the auxiliary arm 220c, the pair of spacer plates 222 and 224, the rotary wheel 112, the second scissors arm 220b and the cover plate 134 are relatively to each other. It can be restrained so as not to be displaced or rotated to structurally prevent the problem of distorting each other around the second scissors arm 220b and the auxiliary arm 220c during long-term use. In addition, during assembly, the auxiliary arm 220c, the pair of spacer plates 222 and 224, the rotation wheel 112, the second scissor arm 220b and the cover plate 134 are installed on the basis of the long axis pin 135. The angles can be easily adjusted, which simplifies the assembly process and eliminates wasteful effort to precisely match each other's angles.

On the other hand, the head 135a of the long axis pin 135 is constrained in contact with the inner circumferential surface of the second mounting ring 223 surrounding the periphery thereof is formed so as not to rotate. The shape of the long axis pin 135, the head 135a can be referred to Figures 3, 4, 8, if it is formed in such a shape simply push the long axis pin 135 through the long axis pin through hole of each part as it is In this state, the head 135a of the long axis pin 135 is directly constrained so as not to rotate by the second installation ring 223, thereby contributing to shortening the assembly process. Here, the head 135a of the long axis pin 135 is formed to have the same thickness as the second mounting ring 223 so as not to protrude out of the second mounting ring 223.

The pressing nut 136 is fastened to the distal end of the long axis pin 135 to fix the long axis pin 135 and to guide the cover plate 134 to press the fixing ring 133. Here, the pressing nut 136 does not protrude out of the first mounting ring 221 so as not to exceed the thickness of the first mounting ring 221 like the head 135a of the long shaft pin 135.

 The first mounting ring 221 is fixed to the outer surface of the second scissors arm 220b to serve to seat the cover plate 134 therein. The first mounting ring 221 is formed to a thickness such that the pressing nut 136 does not protrude around the plurality of pressing nuts 136 together with the cover plate 134.

The second mounting ring 223 is tightly fixed to the outer surface of the auxiliary arm 220c at a position corresponding to the first mounting ring 221. The thickness of the second mounting ring 223 is formed to be the same as the thickness of the head (135a) of the long axis pin 135 is surrounded, but is formed thinner than the thickness of the first mounting ring (221).

The blocking ring 151 is installed in the form of an O-ring to prevent the ingress of foreign matter such as soil or water along the gap between the spacer plates 222 and 224 and the installation pipe 211 formed with the same outer diameter.

Looking at the assembly process of the rotary shaft assembly for the scissors bucket device according to an embodiment of the present invention configured as described above are as follows.

First, as shown in FIGS. 5 and 7, the installation of the rotating member 110 for the first scissors arm 210b is performed. To this end, after drilling the first scissors arm 210b, the mounting pipe 211 is welded and fixed, and the bush 111 is inserted into a bush 111 in a state of being cooled down in a cryogenic liquid with respect to the mounting pipe 211. The rotary wheel 112 is inserted into the 111.

Thereafter, as shown in FIG. 6 and FIG. 8, assembling between the second scissors arm 220b and the auxiliary arm 220c by each component, the coalescing of the previously assembled first scissors arm 210b is performed.

To this end, a pair of spacer plates 222 and 224 are tightly fixed to the second scissor arm 220b and the auxiliary arm 220c to face each other, and the central axis through hole and the plurality of long axis pin through holes are fixed to the site. To form. (However, the central axis through hole and the long axis pin through hole may be formed before assembling the spacer plates 222 and 224.) In addition, a first installation may be provided on the outer surfaces of the second scissor arm 220b and the auxiliary arm 220c. The ring 221 and the second mounting ring 223 are joined and fixed.

Then, the assembly position of the first Caesar's arm 210b, the second Caesar's arm 220b and the auxiliary arm 220c is set, and in this state, the central shaft 131 is rotated by the pair of rotary wheels 112, It penetrates into the central axis through-holes of the spacer plates 222 and 224, the second scissors arm 220b and the auxiliary arm 220c. Then, the rotation shaft 120 is fastened in a straight line between the central shafts 131. The second scissors arm 220b and the auxiliary arm 220c are then temporarily held together with respect to the first scissors arm 210b.

Subsequently, the cover plate 134 is seated inside the first installation ring 221 in a state where the fixing ring 133 is fitted to the distal end of the central shaft 131. In this state, the auxiliary arm 220c and the auxiliary arm ( The spacer plate 222, the rotary wheel 112, the second scissors arm 220b, and the cover plate 134 are pushed into the long shaft pin through hole, and the pressure nut 136 is disposed outside the cover plate 134. Fasten the long shaft pin (135).

This completes the union of the first scissors arm 210b, the second scissors arm 220b and the auxiliary arm 220c through the rotating shaft assembly for the scissors bucket device, and simply completes the entire assembly process.

On the other hand, their disassembly process is also made in a simple manner by proceeding the above-described assembly process almost in reverse order.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Claims (8)

In a scissors bucket device having a first scissors arm provided with a first bucket at the end, and an outer second scissors arm and an auxiliary support arm provided at the end and spaced apart from each other, the first scissors A rotating shaft assembly for rotatably engaging an arm inserted between said second scissors arm and an auxiliary arm, An installation tube which drills the first scissors arm and is fixed to the inner side of the drilled hole; A rotating member comprising a bush fixed in close contact with the inner circumferential surface of the installation tube, and a rotating wheel installed to be relatively slidably rotatable with respect to the bush in the bush; A pair of spacer plates disposed in close contact with inner surfaces of the first scissor arm and the auxiliary arm in a position corresponding to the mounting tube to position the mounting tube and the rotating member therebetween; Coupled to penetrate the rotary wheel, the pair of spacer plates, the second scissors arm and the auxiliary arm to rotate together with the rotary wheel, the pair of spacer plates, and the second scissors arm and the auxiliary arm; A central shaft fastened in a straight line to an end of the rotating shaft; A fixing ring forcibly fitted into a gap formed between an outer circumferential surface of the central shaft end portion and an inner circumferential surface of the central shaft through hole of the second scissor arm and the spacer plate tightly fixed thereto; A cover plate configured to press the fixing ring against the outer side of the second scissors arm to press the locking ring; A long shaft pin installed in a circumferential direction around the central axis and bundling through the pair of separation plates and rotating wheels from the auxiliary arm to the second scissor arm and the cover plate and being bundled together; Is coupled to the distal end of the long shaft pin to secure the long shaft pin and a rotating shaft assembly for the scissors bucket device comprising a pressing nut for inducing the cover plate to press the fixing ring. The method of claim 1, The outer surface of the second scissor arm is fixed to the first mounting ring for seating the cover plate in close contact, the first mounting ring to the thickness that can surround the plurality of pressing nuts with the cover plate Rotary shaft assembly for the scissors bucket device, characterized in that formed. The method of claim 2, The second mounting ring is further provided in close contact with the outer surface of the auxiliary arm in a position corresponding to the first mounting ring, the head of the long shaft pin is constrained to rotate in contact with the inner peripheral surface of the second mounting ring Rotary shaft assembly for the scissors bucket device, characterized in that formed in a angular shape so as not to. The method of claim 3, The thickness of the second mounting ring is formed to be the same as the thickness of the long shaft pin head, the rotating shaft assembly for the scissors bucket device, characterized in that formed thinner than the thickness of the first mounting ring. The method of claim 1, The inner circumferential surface of the central shaft through-hole of the second scissor arm and the spacer plate closely fixed thereto is formed to be wider than the central hole through-hole of the rotary wheel, and the central shaft has a first slope that gradually narrows its outer diameter toward the outer circumferential surface of the distal end thereof. The fixing ring has a second inclined portion whose inner diameter gradually widens to correspond to the first inclined portion on the inner circumferential surface thereof, and the outer circumferential surface of the central shaft end portion and the first portion as the rotary wheel is pushed by the cover plate. 2. A rotating shaft assembly for the scissors bucket device, characterized in that a stronger fit is interposed between the scissors and the inner circumferential surface of the through hole of the spacer plate closely fixed thereto. The method of claim 5, A protruding portion extending from the narrowest part of the outer diameter of the first inclined portion is formed at the distal end of the central shaft, and the fixing ring has a fitting portion extending from the second inclining portion to surround the outer side of the protruding portion of the central shaft. Rotary shaft assembly for the scissors bucket device, characterized in that the insertion portion of the fixing ring surrounding the projection of the central shaft is inserted into the central shaft through hole of the cover plate. The method of claim 1, The pair of spacer plate and the installation pipe is formed to have the same outer diameter, Caesars bucket device, characterized in that a pair of blocking ring is installed to prevent the infiltration of foreign matter along the gap facing the spacer plate and the installation pipe. Rotation axis assembly. Claims 1 to 7 of the scissors bucket device characterized in that it comprises a rotary shaft assembly for the scissors bucket device of any one of claims.

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