JPH06297344A - Half type polishing roll - Google Patents

Abstract

PURPOSE:To enable members to be replaced due to wear of abrasives, and thereby save material by letting each half type polishing core fitting be constituted of a semi-cylindrical core main body, and each semi-cylindrical end interposing fitting installed on the inner circumferential surface at both the ends of the main body. CONSTITUTION:A half type polishing roll R is constituted so as to allow half bodies 5a and 5b to be integrated by installation fittings 6, and each half body 5a and 5b is made up of each semi-cylindrical core fitting 2, and each semi- cylindrical buff 5 wound around the outer side of each core fitting 2 in a laminated state. Each core fitting 2 is made up of a semi-cylindrical core main body 4, and semi-cylindrical interposing fittings 3 installed coaxially on the inner circumferential surface at both the ends of the core main body. Each projection 14 is projected out of a section faced to the radial direction of the outer circumferential surface of each end interposing fitting 3, and the core fitting 2 is assembled by locking each projection 14 in each recessed section formed at the inner circumferential periphery of the core main body 4, and furthermore by engaging each regulating pin 10 projected out of a rotating shaft 1 with the recessed sections of the fittings 3.

Description

Detailed Description of the Invention

A. OBJECT OF THE INVENTION (1) Industrial field of use The present invention relates to a polishing roll of a cylindrical buff or a brush, which is attached to a rotary shaft and whose surface is polished by the rotary polishing of the rotary buff or brush. The present invention relates to a half-divided polishing roll that comprises two half-divided cylindrical core fittings to which brushes are attached so as to be opposed to each other with a rotary shaft interposed therebetween to form a cylindrical polishing roll.

(2) Conventional Technology Generally, as shown in FIG. 10, a core metal fitting a of a half-division polishing roll of this type is formed into a semi-cylindrical shape from a thick portion b at both ends and a thin portion c at the center. Then, a hole d for inserting a bolt is penetratingly formed in the thick portion b, and a buff or a brush e is attached to the outer periphery of the core metal fitting a. Reference numeral f is a concave groove that fits on the peripheral surface of the rotating shaft (not shown). Then,
Assemble the core metal fittings "a" facing each other with the rotary shaft in between.
The bolt insertion holes of the core metal fitting a are aligned with the bolt insertion holes (not shown) of the rotary shaft, and fixing bolts are inserted through these holes to be fixed. However, in this assembling operation, it is not easy and time-consuming to align the heavy core metal fitting a with the bolt insertion hole d of the heavy metal fitting a and the bolt insertion hole of the rotary shaft. Has become. Further, the core metal fitting a is usually formed by casting as an integral body,
Due to the complexity of the shape, it takes time and the molding efficiency is poor. Furthermore, when replacing the polishing roll due to wear of the buff or brush, a new core metal piece must be prepared each time, and not only the weight is large but also the material is required, which is uneconomical.

(3) Problems to be Solved by the Invention The present invention has been made in view of the above circumstances, and in a half-division type polishing roll of this type, it is easy to attach the core metal fitting to the rotary shaft. At the same time, it is an object of the present invention to provide a half-division type polishing roll which can improve the formability and can save the material at the time of replacement.

B. Structure of the Invention (1) Means for Solving Problems The half-division polishing roll of the present invention has the following structure in order to achieve the above object. That is, two cylindrical end fittings that are fitted to a rotating shaft that maintains a constant diameter and are arranged at a predetermined interval, and an abrasive material are attached to the outer peripheral surface of the fittings. A core metal fitting is arranged across the metal fittings, and is composed of two half-divided cylindrical core metal fitting bodies, and a bolt insertion hole has an axis centered on the rotary shaft, the end interposing metal fitting, and the core metal fitting body. Aligned with each other, a regulation pin is projected from the bolt insertion hole at a predetermined distance from the rotary shaft,
A notch recess for receiving the regulating pin is provided on the inner end surface of the end interposer, and a protrusion is provided on the inner peripheral surface of the end interposer to project from the outer peripheral surface of the end interposer. It is characterized in that a mounting recess is formed on the surface to receive the projection of the end interposing metal member.

(2) Operation When mounting the end interposition metal fitting on the rotary shaft, the bolt insertion holes of the rotary shaft and the end interposition metal fitting are aligned with each other as the restriction pin and the notch recess are fitted. , Assembled in place. Next, when the core metal fitting body is mounted on the end fitting, the bolt insertion holes of the end fitting and the core fitting body are aligned with each other by fitting the protrusions and the recesses together. Assembled in position. As a result, the bolt insertion holes of the rotary shaft and the core metal fitting are aligned in the hole centers, and are assembled in a predetermined state. These members are connected by a mechanical connection and do not shake against rotational movement. The replacement of the polishing roll due to the abrasion of the abrasive is performed by replacing only the core body, leaving the end interposer, and assembling a new core main body to the end interposer.

(3) Example An example of the half-division polishing roll of the present invention will be described with reference to the drawings. (Structure of Embodiment) FIGS. 1 to 5 show an embodiment (first embodiment) of the present invention, and show an example of application to a buff-type half-division polishing roll. That is, FIG. 1 shows the overall configuration, and FIG.
FIG. 5 shows each partial configuration.

As shown in FIGS. 1 and 2, R is a half-division type polishing roll (hereinafter, simply referred to as "polishing roll") of the present embodiment, and the polishing roll R is attached to a rotary shaft 1 and rotated. Driven. The rotating shaft 1 has a constant diameter. Then, the core metal fitting 2 of the polishing roll R is fitted to the rotary shaft 1 and has two end interposition metal fittings 3 arranged at a predetermined interval.
And a core metal fitting body 4 which is disposed so as to straddle these end fittings 3. The core metal body 4 is divided into two halves 4a and 4b having a plane including the center of the rotating shaft 1 to be mounted, and the buff 5 attached to the outside of each half 4a and 4b is also half. The halves 5a and 5b have a cylindrical shape. And this polishing roll R
When the respective halves 4a, 4b of the core metal fitting body 4 are independently attached to the rotary shaft 1 with the fixtures 6 via the end interposing metal fittings 3, and are integrated, the core metal fitting body 4 and The buff 5 retains a perfect circular shape in the cross sectional shape.

The present embodiment is characterized by the core metal fitting 2 and the mounting structure of the core metal fitting 2 on the rotary shaft 1. The detailed construction of the core metal fitting 2 will be described with further reference to FIGS. .

Rotating shaft 1 A plurality of (2 in this embodiment) bolt insertion holes 8 are formed in the rotating shaft 1 at predetermined intervals in a penetrating manner in parallel with each other in the radial direction. A round pin fitting hole 9 is formed on the inner side of the insertion hole 8 at a predetermined distance α from the center of the bolt insertion hole 8. Reference numeral 10 denotes a cylindrical regulation pin. The lower half portion is closely fitted and inserted into the pin fitting hole 9, and the upper half portion is projected from the peripheral surface of the rotary shaft 1.

End Interposer 3 The end Interposer 3 is a short cylindrical body having a uniform thickness, and its inner diameter is closely fitted to the rotary shaft 1 so that the rotary shaft 1 can be closely fitted. Substantially equal to an outer diameter of 1. The end fitting 3 corresponds to a so-called thick portion. Then, a bolt insertion hole 12a is formed in the end fitting 3 corresponding to the bolt insertion hole 8 of the rotary shaft 1 at a fixed position of attachment to the rotary shaft 1. In addition, a semicircular cutout recess 13 is provided on the end surface of the end interposition metal fitting 3 on the inner side, and the cutout recess 13 is formed.
Receives the upper half portion of the regulation pin 10 described above from the side direction thereof. Although the notch 13 has a depth sufficient to receive the upper half of the restriction pin 10 in the present embodiment, it may be formed in a groove shape across the wall thickness of the end interposer 3. Bolt insertion hole 12 in this end fitting 3
The distance from the hole center of “a” to the end face of the end fitting 3 is equal to the distance α from the hole center of the bolt insertion hole 8 in the rotating shaft 1 described above.

On the outer surface of the end fitting 3 is provided a protrusion 14 for attachment having a predetermined width and a predetermined thickness in the radial direction orthogonal to the hole axis of the bolt insertion hole 12a. The end fitting 3 including the cutout recess 13 and the projection 14 is formed by casting or die casting, but the cutout recess 1
When 3 is thick, it can also be by perforation.

Core Metal Body 4 The core metal body 4 is a long semi-cylindrical body having a uniform thickness, and a buff 5 is fixed to the outer periphery thereof. The core metal fitting body 4 is made of aluminum (Al) in this embodiment, and is manufactured by extruding aluminum. Therefore, the accuracy is high, the cost is low, and a large amount can be obtained. Bolt insertion holes 12b are formed at both ends of the core metal fitting body 4 at fixed positions for attachment to the end interposition metal fittings 3 corresponding to the bolt insertion holes 12a. The bolt insertion holes 12 a and 12 b form the bolt insertion hole 12 as the core fitting 2. And the main polishing roll R
When assembled on the rotary shaft 1, the bolt insertion holes 8 of the rotary shaft 1 and the bolt insertion holes 12 of the core fitting 2 are aligned on the same straight line. Further, the core metal body 4 has an inner peripheral edge portion provided with a mounting recess 16 for receiving half of the protrusion 14 at a fixed position for mounting the end interposing metal member 3. When the core metal fitting body 4 is attached to the end fitting 3, the recess 16 fits into the protrusion 14, and in this state, the bolt insertion holes 12a and 12b of the two are aligned.

[0013] buff 5 buff 5, it is abrasive grain 19 during substrate 18 of a synthetic resin material will be contained and secured with a predetermined thickness on the outer periphery of the core metal body 4.

[0014] The fixture 6 fixture 6, the bolt 21 (head 21a, bolt rod 21
b, screw part 21c) and nut 22, and bolt 2
The bolt rod 21b of No. 1 is inserted into the core metal fitting 2 and the bolt insertion holes 12 and 8 of the rotary shaft 1, and the nut 22 is screwed to the threaded portion 21c at the end of the bolt rod 21b.
The polishing roll R is fixed to the rotary shaft 1 by being sandwiched between the two.

(Operation of the Embodiment) The polishing roll R of the present embodiment having the above-mentioned configuration exhibits the following operation due to the core metal fitting 2 which is its characteristic feature. (Mounting) The polishing roll R is mounted on the rotary shaft 1 as follows. First, the pin fitting hole 9 of the rotary shaft 1
The regulation pin 10 is fitted into the above, and the regulation pin 10 is projected on the peripheral surface of the rotating shaft 1. Next, the end interposition metal fittings 3 are fitted from both ends of the rotary shaft 1, and the cutout recesses 13 of the end interposition metal fittings 3 are fitted to the regulation pins 10. Along with this, the bolt insertion holes 8 of the rotary shaft 1 and the bolt insertion holes 12a of the end fitting 3 have the same hole center. Then, the end fitting 3
On the other hand, the one half core metal fitting body 4 is fitted so that the recesses 16 on the inner peripheral surfaces of both ends thereof are fitted into the protrusions 14 of the end interposing metal fitting 3. As a result, the bolt insertion holes 12 of the core fitting 2 and the bolt insertion holes 8 of the rotary shaft 1 have the same hole center, and the bolts 21 of the fixture 6 are inserted into these holes 12, 8. The other half-divided core metal fitting body 4 is assembled from the opposite side of the rotary shaft 1 so that the concave portion 16 thereof fits into the protrusion 14 of the end interposing metal fitting 3, and the bolt is attached to the screw portion 21c at the tip of the bolt 21. By fitting the insertion hole 12b,
The halved core metal fitting bodies 4 facing each other are brought into contact with each other, and the nut 22 is screwed and tightened. It should be noted that the bolt insertion hole 21 of the fixture 6 may be mounted after the half-bracket main bodies 4 have been joined together. In mounting the rotary shaft 1 of the end interposing metal fitting 3, by fitting the notch recess 13 of the end interposing metal fitting 3 to the regulation pin 10 previously mounted on the rotary shaft 1, the core metal fitting main body 4 is mounted on the end fitting 3 by fitting the mounting recess 16 into the projection 14, the bolt insertion holes 12 and 8 are automatically aligned on the same axis, and the core fitting 2 is attached to the rotary shaft 1. Will be installed.

(Removal) For removal of the polishing roll R, the nut 22 of the fixture 6 is loosened, the bolt 21 is pulled out, and each half core metal fitting body 4 is removed. In this state, the end fitting 3 is left on the rotary shaft 1, but if necessary, the end fitting 3 is pulled toward the end of the rotary shaft 1.

By using a (replacement) polishing roll, the buff 5
Is gradually worn to reduce the diameter and is replaced, but the core metal body 4 of the polishing roll R is removed from the rotary shaft 1 based on the above-described procedure. At this time, the end fitting 3 is left on the rotary shaft 1, and the newly prepared core fitting main body 4 is attached to the end fitting 3 based on the above-described attachment procedure.

(Effects of Embodiment) As described above, according to the polishing roll R of this embodiment, the notch recess 13 of the end fitting 3 is fitted to the restriction pin 10 mounted on the rotary shaft 1. By fitting the mounting recess 16 of the core metal fitting body 4 to the protrusion 14 on the outer side of the end interposing metal fitting 3, the bolt insertion holes 8, 12 (12a, 12b) of each member are automatically aligned. However, the specified installation state is achieved by extremely simple work.
Further, although the polishing roll R is replaced due to wear of the buff 5, the end interposition metal fitting 3 is left on the rotary shaft 1 and only the new core metal fitting body 4 needs to be replaced, which saves the entire material. Can be achieved. Furthermore, since the end fitting 3 and the core fitting body 4 are separate bodies, and the core fitting body 4 is a semi-cylindrical body having a substantially constant thickness, its molding is easy and The finishing accuracy is good and the production cost can be reduced.

In the present embodiment, the nut 2 of the fixture 4
It is possible to omit 2 and adopt a mounting mode using only the bolt 21. FIG. 6 shows this mode, in which the bolt insertion hole 8 of the rotary shaft 1, the bolt insertion hole 12a of the end interposition metal fitting 3, and the bolt insertion hole 12b of one half-split body 4a are left as they are, and the other half-split. A screw hole 12c is screwed into the body 4b. Then, the screw portion 21c of the bolt 21 is attached to the screw hole 1
The polishing roll R is attached by screwing it onto 2c. According to this aspect, although the attachment mode using only the bolt is known, it is only necessary to tap one half body 4,
There is an advantage that the manufacturing efficiency is improved as compared with the conventional method of tapping the entire thick portion.

Further, a screw hole is screwed in place of the bolt insertion hole of the rotary shaft 1, and short bolts are screwed into the screw hole independently of the facing half halves 4a and 4b, respectively. A mode in which R is attached can be adopted. In this case, the screw holes of the rotary shaft 1 are opposite to each other with the axis center as a boundary.

(Other Embodiment) FIGS. 7 and 8 show another embodiment (second embodiment) of the core fitting of the present invention. In this figure, the same members as those in the previous embodiment are designated by the same reference numerals. In this embodiment, the end fitting 3
The outer peripheral surface of each of the pins is formed with a pin fitting hole 24 for a protruding pin that is a round hole in the radial direction, and the inner half portion of the protruding pin 25 is closely fitted and inserted into each of the pin fitting holes 24. The half part projects from the outer peripheral surface. Correspondingly, a recess 26 for receiving the inner half of the projecting pin 25 is provided at the top of the inner peripheral surface of the core fitting body 4. Further, two cutout recesses 27 are formed in the radial direction across the wall thickness on the end surface of the end interposing metal fitting 3. The semicircular concave surface on the inner side and the upper half of the regulation pin 10 are formed. Is in contact with one side of. Since the notch recesses 27 are provided at two locations in the radial direction, the end interposition metal fitting 3 is set to one.
Rotate it by 80 ° and insert which notch
It may be fitted to 0.

The present invention is not limited to the above embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention. That is, the following aspects are included in the technical scope of the present invention. The regulation pin 10 is not limited to a columnar shape, but may be a prismatic shape or any other appropriate shape. Further, the cutout recess 13 may also be one that receives the restriction pin 10 by lateral movement.

C. Effect of the Invention According to the half-division polishing roll of the present invention, the notch recess of the end interposing metal fitting is fitted to the restriction pin mounted on the rotary shaft,
By fitting the mounting recesses of the core metal fitting body to the protrusions on the outside of the end fittings, the bolt insertion holes of each member are automatically aligned with each other, and the predetermined mounting condition is achieved by extremely simple work. Therefore, the efficiency of the work of attaching the polishing roll is improved. Also, although the polishing roll is replaced due to wear of the buff, the end interposition metal fitting is left on the rotating shaft, and only the new core metal fitting main body needs to be replaced, and the overall material saving can be achieved. . Further, since the end metal fitting and the core metal fitting body are separate bodies, and the core metal fitting body is a semi-cylindrical body having a substantially constant thickness, its molding is easy and the finishing accuracy is also high. Well, the production cost can be reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing the overall configuration of a half-division polishing roll according to one embodiment (first embodiment) of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged exploded view of a main part of this embodiment.

4 is a sectional view taken along line IV-IV in FIG.

5 is a view on arrow V in FIG.

FIG. 6 is a partial cross-sectional view showing another aspect of the fixture.

FIG. 7 is an exploded side view of a core metal part according to another embodiment (second embodiment) of the present invention.

FIG. 8 is a view on arrow VIII in FIG.

FIG. 9 is a configuration diagram of a core fitting of a conventional half-division polishing roll.

[Explanation of symbols]

R ... Half-division polishing roll, 1 ... Rotating shaft, 2 ... Core fitting,
3 ... End fittings, 4 ... Core fitting body, 6 ... Fixture,
8 ... Bolt insertion hole of the rotating shaft 1, 10 ... Regulation pin, 12a
... Bolt insertion hole of the end-mounting metal fitting 3, 12b ... Bolt insertion hole of the core metal fitting body 4, 13 ... Notch recess, 14 ... Projection body, 16 ... Mounting recess

Claims (2)

[Claims] 1. Cylindrical two end fittings, which are fitted to a rotary shaft maintaining a constant diameter and are arranged at a predetermined interval; and an abrasive material is attached to the outer peripheral surface of the fittings. A core metal fitting is formed by arranging over the end interposer metal fittings and two half-divided cylindrical core metal fitting bodies; and a bolt is inserted into the rotary shaft, the end interposer metal fitting, and the core metal fitting main body. A hole is opened with its axis aligned, a restriction pin is projected from the bolt insertion hole at a predetermined distance from the rotary shaft, and the restriction pin is received on the inner end surface of the end interposer. Notch recesses are provided, and projections are provided so as to project from the outer peripheral surface of the end interposition metal fittings, and mounting recesses that receive the projections of the end interposition metal fittings are provided on the inner peripheral surface of the core metal fitting body. A half-division type polishing roll, characterized in that 2. A half-divided polishing roll according to claim 1, wherein, in two core metal fitting bodies that are oppositely mounted to the end fittings, the bolt insertion holes of one core metal fitting body are replaced with screw holes. .