JP3409122B2 - Brush roll and brush element with sinking key - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush roll used for polishing, cleaning, cleaning, etc. of a steel plate or a steel strip (hereinafter abbreviated as a steel plate), and more specifically, an abrasive bristle or a cleaning thread is planted on the outer peripheral edge. The present invention relates to a brush roll of the type in which a brush element formed by laminating a large number of annular discs is mounted on a roll shaft.

[0002] Such a brush roll needs to be replaced with a new one due to abrasion, and the replacement frequency is not small.

In this type of brush roll, both ends of the roll shaft are supported by bearings of a roll chock.

[0004]

2. Description of the Related Art Conventionally, a brush roll of this type is laminated by arranging a number of annular discs having abrasive bristles or cleaning yarns on the outer periphery thereof in parallel and compressing and tightening the parallel bodies with flanges from both sides in the parallel direction. The brush element and the shaft on which the brush element is mounted are integrated, and it is necessary to replace the old and new brush elements. For this reason,
The disassembly, removal, and re-installation of the roll chock and the bearing, which are required to replace the old and new brush rolls, need to be performed on both ends of the shaft of the old and new brush rolls. That is, a total of four roll chocks and four bearings must be performed. Roll chock disassembly and removal is not always easy. Since the bearing is tightly coupled to the roll shaft by shrink fitting, it is considerably difficult to disassemble and remove the bearing, and mounting is also difficult due to shrink fitting. It is no exaggeration to say that it is extremely difficult to perform such disassembly, removal, and remounting of the roll chock and the bearing, which are not necessarily easy or considerably difficult, for a total of four each. Also, the brush roll is usually equipped with a shaft,
It weighs about 1 ton, and it is not easy to remove the brush roll itself from the machine base, remount it on the machine base, or even move between the user and the manufacturer.

The fact that the brush rolls fit the annular discs onto the roll shafts means that a clearance is required between the shafts and the discs. Therefore, in the conventional art, the torque transmission of the roll shaft to the annular disc parallel body is a keying method by the touched key, and when the brush roll is operated, there is a runout that causes deterioration of quality such as chatter marks on the steel plate. It happens on brush rolls. For this reason, conventional brush rolls cannot be used for polishing steel plates that require high precision.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to simplify replacement of old and new brush rolls of the type shown above.

Another object of the present invention is to make it easier to carry out maintenance for a steel plate having different widths, such as polishing, cleaning or cleaning.

Further, the present invention is to eliminate the problem of run-out of the prior art.

[0009]

The present invention provides the following 1. And 2. A brush roll having the above-mentioned constitution, and the following 3. And 4. The brush element with a sunken key having the above-mentioned configuration.

1. A brush element composed of a laminated body of annular discs having abrasive bristles or cleaning threads planted on the outer peripheral edge,
A brush roll fitted in parallel on the shaft,
Each of the brush elements and the shaft are engaged with each other by a plurality of sunken keys and key grooves arranged at equal intervals in the circumferential direction of the shaft and the brush element and having a length not exceeding the length of the brush element. And the keyway is on the brush element side.
It consists keyway portion and the shaft-side key groove portion, the sectional shape of the sink key and a trapezoid and an inverted trapezoid of the brush element
They come into contact with each other inwardly in the radial direction.
And the contact point between the trapezoid and the inverted trapezoid is
The brush element is located on the same line of the outer periphery and the concentric circle.
Slave keyway the sink key than the portion has become a cross-sectional shape that prevents disconnect kick of the radial direction of the brush element, the sunk key is enabled expansion shrinkage in the width direction, the brush under contraction is by extending the sunk key attached to the element side keyway portion adapted to engage said brush element side keyway portion and said brush element Gawaki under contraction
-While it is fitted in the groove, the brush is stopped by stopper means.
A brush roll characterized in that it does not come out in the length direction from the element-side key groove portion .

2. A brush roll in which brush elements made of a laminated body of annular disks in which polishing bristles or cleaning threads are planted on the outer peripheral edge are fitted in parallel on a shaft, wherein each of the brush elements and the shaft comprises the shaft, The brush element is engaged by a plurality of sunk keys and key grooves arranged at equal intervals in the circumferential direction, and the sunk key and the key groove are such that the brush element side portion is in the radial direction of the brush element. The sunk key has a cross-sectional shape that prevents the sunk key from coming off, and the sunk key has a first key member and a second key member each having a length that does not exceed the length of the brush element. The first key member is provided with engaging portions which are engaged with the side walls of the key groove and which are parallel to each other, and convex step portions formed on the inner side surface of the engaging portions so as to be alternately arranged in the longitudinal direction. And the recessed step portion and the both engaging portions are expanded in the width direction, A spring-type bridge portion that is contractably connected, and a concave groove into which the second key member is fitted so as to be movable in the lengthwise direction, and the second key member is provided on the outer side surface in the engaging portion. A transition between the convex step portion and the concave step portion of the engaging portion of the first key member, which has concave step portions and convex step portions having a shape and arrangement that match the convex step portions and concave step portions arranged side by side. The portion and the transition portion between the concave step portion and the convex step portion of the second key member are inclined so that the second key member can move in the longitudinal direction with respect to the first key member. , The second key member cooperates with a removable spacer attached to an end portion of the second key member in a longitudinal direction of the second key member in the groove with respect to the first key member. Further has a stopper capable of cutting or rupturing for controlling the insertion depth of the first key member, and the first key member has the stopper. Serial second key member recesses to allow entering in movement in the longitudinal direction on one end surface, the brush roll, characterized by further comprising a stopper abutting on the inner edge side outer surface of the brush element on the other end face.

3. A brush element constituted by a laminated body of annular disks having an outer peripheral edge in which abrasive bristles or cleaning threads are planted, a shaft-side key groove portion, and a portion facing this
A sunk key-equipped brush element having a sunk key capable of engaging the brush elements in parallel with a shaft by a key groove formed of a brush element side key groove portion , wherein the sunk key is a brush element of the brush element. not exceed the length has become long, the brush element side keyway portion, said have been made several forms in the brush element peripheral surface at equal intervals in the circumferential direction, the sectional shape of the front Kishizumi key However, the trapezoid and the inverted trapezoid
It touches at the position where it goes inward in the radial direction of the child.
And the contact point between the trapezoid and the inverted trapezoid is the brush element.
Of being positioned on the same line of the outer periphery and concentric, has become a cross section to prevent coming off in the radial direction of the brush element side keyway portion by Ri before Symbol brush element said sunk key fitting the this, the sunk key is a extended shrinkable in the widthwise direction, the bra by expanding the sunk key mounted on the brush element side keyway portion <br/> under contraction
Is adapted to engage the sheet element side keyway portion, also the bra
A brush element with a sunk key, characterized in that, in a state of being contractedly fitted into the key groove portion on the element side , the stopper means prevents the key groove portion from being pulled out in the length direction from the brush element side key groove portion .

4. With a sinking key having a brush element constituted by a stack of annular discs having abrasive bristles or cleaning threads planted on the outer peripheral edge thereof, and a sinking key capable of engaging the brush element in parallel with a shaft. A brush element, wherein a plurality of brush element side key groove portions are formed on the inner peripheral surface of the brush element at equal intervals in the circumferential direction,
The brush element side key groove portion and the sinking key fitted thereto have a cross-sectional shape that prevents the sinking key from coming off from the brush element side key groove portion in the radial direction of the brush element, and the sinking key is , A first key member each having a length not exceeding the length of the brush element, and a second key member, the first key member being the brush.
Engaging portions that are parallel to each other and are engaged with the side wall of the element-side key groove portion , and convex step portions and concave step portions that are formed alternately on the inner side surface of the engaging portion in the longitudinal direction, The second key has a spring-shaped bridge portion that connects the engaging portions so as to expand and contract in the width direction, and a concave groove into which the second key member is movably fitted in the length direction. The member has a concave step portion and a convex step portion of a shape and arrangement that match the alternating convex step portion and concave step portion of the inner surface of the engaging portion on the outer surface, and the engaging portion of the first key member The transition portion between the convex step portion and the concave step portion and the transition portion between the concave step portion and the convex step portion of the second key member are longer than the first key member by the second key member. The second key member is inclined so as to be movable in the vertical direction, and the second key member cooperates with a removable spacer attached to an end portion on one end side thereof to form the first key member. Further comprising a cuttable or rupturable stopper for controlling the insertion depth in the lengthwise direction of the second key member in the concave groove, the first key member, The sunken key, further comprising a recess at one end surface for allowing the stopper to enter by moving in the lengthwise direction of the second key member, and at the other end surface abutting against the inner edge side outer surface of the brush element. With brush element.

In the brush roll and the brush element with a sinking key according to the present invention, the sinking key and the key groove into which the sinking key is fitted preferably have the following structure (A ) . The reason for that will be explained later . (A) The sunken key and the keyway into which it fits are such that the outer or contour of the cross-section in the radial direction of the brush element and shaft is a trapezoidal outline on the brush element side and an inverted trapezoidal shape on the shaft side. The trapezoidal outline or contact point of the outline is located at a position to enter the brush element side and on the same line as a concentric circle with the element. The degree of contact of the contact with the brush element may be small.

As used herein, the term "cleaning thread" in relation to the present invention
Is a general term for linear objects used for brushing for cleaning steel sheets. This also applies to the claims and the following description.

The above-mentioned "brush element" according to the present invention means a brush element of a conventional brush roll (however, a shaft of a conventional brush roll in which a plurality of annular discs having abrasive bristles or cleaning threads implanted or planted thereon are laminated on the outer peripheral edge). And the annular disc parallel laminate (not including the compression tightening flange at the end) is divided into several parts in the lengthwise direction, and each of the divided parts is laminated and integrated with the parallel annular discs. What you do. Here, it goes without saying that the brush element according to the present invention, in other words, the annular disk in the brush element is provided with a key groove having a predetermined configuration at a predetermined position on the inner peripheral surface thereof. The definition of the brush element is the same in the description of the claims and the description below. In order to stack and integrate parallel annular discs, a large number of annular discs are arranged in parallel with the interposition of an adhesive medium, and their key grooves are aligned in parallel, and the multiple annular discs are compressed and fixed in the parallel direction. Then, the specification of stacking can be given as an example. The adhesive medium may be a coating type, and may be applied to the annular disk by coating.

In the present invention, the fact that the sinking key and the first and second key members have a length that does not exceed the length of the brush element means that the required number of brush elements are fitted in parallel on the shaft and are keyed together. It is necessary in order to avoid a gap from being formed between the brush element and the sinking key end and the first and second key member ends. If there is a gap, the steel plate in that portion will not be brushed, resulting in polishing spots or cleaning spots.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

The brush rolls are generally designated by the symbol I. The brush roll I includes a brush element U made up of a plurality of laminates of annular disks 2 having an abrasive bristle or a cleaning thread (hereinafter abbreviated as abrasive bristle) 1 planted on the outer peripheral edge thereof, and a plurality of the brush elements U arranged in parallel. And a shaft 3 fitted therein. The parallel arrangement in the multi-layer stack of annular discs 2 is no different from that of the annular disc of the brush element of a conventional brush roll.

The brush element U and the shaft 3 fitted with the brush element U are engaged by the shaft 3, a plurality of sunken keys 4 arranged at equal intervals in the circumferential direction of the brush element U, and a key groove 5 into which the key 4 is fitted. It is designed to be keyed. The sunken key 4 and the key groove 5 are formed by their brush elements U.
The side part sinks in the radial direction of the brush element U and the key 4
It has a cross-sectional shape that prevents it from coming off.

The sectional shape of the sunken key 4 and the key groove 5 is a trapezoidal outline on the brush element U side and an inverted trapezoidal shape on the shaft 3 side in the radial direction of the brush element U and the shaft 3. A preferable example is one in which the contact points of the outer or contour of the trapezoid and the inverted trapezoid are located at a position slightly entering the brush element U side. The position where the contact enters the side of the brush element U is on the same line as a concentric circle with the element U with respect to the sinking key 4 and the key groove 5 arranged in parallel in the circumferential direction of the brush element U.

The sinking key 4 has a length not exceeding the length of the brush element U. The sunken key 4 can be expanded and contracted in the width direction, and is engaged with the key groove 5 when expanded. Further, the sunken key 4 is attached to the stopper C while being contracted and fitted into the key groove 5a on the brush element U side.
More so as not escape the length direction from the keyway 5a. As the stopper C, the following stoppers S1 and S2 and a spacer S can be mentioned as preferable examples. More specifically, the sunken key 4 has the following structure.

The sinking key 4 has a first key member 4a and a second key member 4b each having a length not exceeding the length of the brush element U. The first key member 4a is a brush element U.
Of the key groove 5a and the side wall of the key groove 5b of the shaft 3 are provided in parallel with each other and have engaging portions 6 extending in the length direction of the key member 4a. Further, the first key member 4a has a plurality of convex step portions 7 and concave step portions 8 formed on the inner side surface of the engaging portion 6 so as to be alternately arranged in the length direction of the member 4a. Further, the first key member 4a has a spring-shaped bridge portion 9 which is juxtaposed in the lengthwise direction and which connects the engaging portions 6 and 6 so as to expand and contract in the widthwise direction of the member 4a. Furthermore, the first key member 4a has a groove 10 into which the second key member 4b is fitted so as to be movable in the length direction. The second key member 4b has, on its outer surface, a plurality of concave step portions 11 and convex step portions 12 that are alternately arranged in the length direction of the member 4b. The concave step portions 11 and the convex step portions 12 have a shape and arrangement that match the convex step portions 7 and the concave step portions 8 arranged alternately on the inner surface of the engaging portion 6, that is, the convex step portions 7 and the concave step portions. 11 and the concave step portion 8 and the convex step portion 12 are shaped and arranged so as to be fitted with each other. The transition portion 13 between the convex step portion 7 and the concave step portion 8 of the engaging portion 6 and the transition portion 14 between the concave step portion 11 and the convex step portion 12 of the second key member 4b are the first key member 4a. On the other hand, the second key member 4b is inclined so as to be movable in the length direction.

Further, the second key member 4b cooperates with a removable spacer S attached to the end portion on one end side of the second key member 4b, so that the second key member 4b has a second groove in the groove 10 with respect to the first key member 4a.
Further, a stopper S2 capable of being cut or broken to control the insertion depth of the key member 4b in the length direction is further provided on the one end side. The first key member 4a has a recess 15 that allows the stopper S2 to enter by moving in the lengthwise direction of the second key member 4b. One end surface of the first key member 4a abuts the other end surface of the inner surface of the brush element U on the inner edge side. Further has S1.

The spacer S is a portion 1 that rides on a portion 16 adjacent to the inside of the stopper S2 of the second key member 4b (left side in FIG. 10 showing the plan view of the second key member 4b).
9, two-legged piece 17, 1 covering the portion 16
7 and a contact portion 18 that contacts the end surface of the brush element U. The spacer S is made of a resin molded body, and due to its resin elasticity, the two leg pieces 17 and 17 can be attached to and detached from the portion 16, that is, the key member 4b can be attached to and removed from the end portion on the required side.

The second key member 4b is fitted into the groove 10 of the first key member 4a, and the combination of the first and second key members 4a and 4b obtained here is combined with the key groove of the brush element U. 5a and stopper S2 of this second key member
And a state in which the spacer S is attached to a required portion of the member 4b by being interposed between the end surface of the brush element U on the stopper S2 side and
The brush element U is omitted and shown in FIG.

In this state, the spacer S cooperates with the stopper S2 to prevent the second key member 4b from moving to the left in FIG. 17, relative to the first key member 4a on the brush element U. , The second key member 4b in the groove 10 with respect to the first key member 4a, to control the insertion depth of the second key member 4b in the longitudinal direction, the stopper S1 at the predetermined end of the first key member 4a is The first key member 4a is restrained from moving to the right in FIG. 17 with respect to the element U. In this state, since the brush element U is provided with the sinking key 4, it is obvious that stocking of the brush element described later can be performed for a purpose.

In this state, the convex step portion 12 of the second key member 4b is fitted in the concave step portion 8 of the first key member 4a, and the convex step portion 7 of the former key member is fitted in the concave step portion of the latter key member. 11 is fitted and the sunken key 4 is under contraction, that is, the first key member 4
a is not engaged with the keyway 5a. In this state, when the brush element U is fitted on the shaft 3, the brush element U can be immediately fixed on the shaft 3 by the sunken key 4 having the first key member 4a and the second key member 4b. But also.

The sunken key 4 mounted in the key groove 5a under contraction
To key the attached brush element U to the shaft 3,
By fitting the brush element U on the shaft 3, removing the spacer S (FIGS. 19 and 20), and pushing the second key member 4b to the stopper S1 side with respect to the first key member 4a on the brush element U. Reach the purpose. In this case, the concave portion 15 on the predetermined side end surface of the first key member 4a allows the latter key member to be pushed in the required direction with respect to the former key member. This pushed state is shown in FIG.

By this pressing, the convex portion 7 of the first key member 4a and the convex portion 12 of the second key member 4b face each other, and
When the parallel engaging portions 6 and 6 of the key member 4a of the above are expanded in the width direction, the sunken key 4 is engaged with the key groove 5a of the brush element U and the key groove 5b of the shaft 3, that is, the key groove 5 under tightening. To meet. Each brush element U is mounted on the shaft 3 and keyed in the same manner as described above.

The brush element U fitted on the shaft 3 and fixed with the key has the second key member 4b from the state in which the sinking key 4 is engaged with the key groove 5 and the first key member 4a on the brush element U. Again, push it further into the stopper S1 side. Then,
The convex portion 12 of the second key member 4b, which has been engaged with the convex portion 7 of the first key member 4a until then, fits into the concave portion 8 adjacent to the pushing side of the convex portion 7, The sunken key 4 contracts. In this case, the stopper S of the second key member 4b
2 is the second key member 4b with respect to the first key member 4a
It can be removed from the second key member 4b by pushing at the bottom of the recess 15 by forcing said further pushing of. The stopper S2 may be removed by cutting with a cutter or the like instead of the forced pushing.

Here, the brush element U on the shaft 3 is
It can be easily removed from the shaft 3 by hand. Thus, the fact that the key groove and the sunken key can be disengaged under tightening by pushing the second key member into the first key member in this manner means that this disengagement can be easily performed. .

As is apparent from the above, the brush element according to the present invention is different from the conventional brush element in that the compression tightening flange at the end of the annular disc parallel laminated body is not necessary. Therefore, according to the present invention, it is possible to easily attach the brush element to the shaft of the brush roll and remove the brush element attached to the shaft.

In the present invention, since the brush element can be easily attached to and detached from the shaft, the old and new brush rolls can be replaced and the replacement equipment can be moved between the user and the maker only in the form without the shaft, that is, only the brush element. It can be easily done by replacing old and new and moving.
In addition, disassembling, removing and re-installing the roll chock and rolling bearing when replacing the old and new brush rolls need only be done on one side of the shaft, and the labor and time required for disassembling, removing and re-installing these shafts are significantly reduced compared to the past. obtain. Further, by setting the diameter of the rolling bearing mounted on the roll chock to be smaller than the inner diameter of the brush element, it is possible to replace the old and new brush rolls with the rolling bearing mounted on the shaft. It is not necessary to remove and attach the rolling bearing to the shaft. In preparation for brush roll replacement, roll chock of the brush roll machine (Fig. 2
3) has a structure that can be disassembled as shown in FIG. Therefore, if the outer diameter of the rolling bearing (see FIG. 23) is smaller than the inner diameter of the brush element, disassembling one roll chock allows the brush element to be attached to and detached from the shaft without removing the rolling bearing from the shaft. The procedure for attaching and detaching this brush element is shown in FIG. Figure 2
In 3, the brush element is shown schematically, and the roll chuck carrying the rolling bearing mounted on the shaft is shown in phantom.

Furthermore, the maintenance of the brush roll which is used for polishing and cleaning or cleaning of steel plates having different widths is simpler than before. This point will be described below with a specific example.

In order to brush four types of steel plates having different widths with a brush roll machine having four brush rolls, it is necessary to prepare a total of four types of rolls having different lengths. In order to respond immediately to this, in the conventional technology,
It requires 16 brush rolls with shafts and a length of at least 1 m, and the stock is not easy to maintain.

Contrary to this, in the present invention, as is clear from the above description, in order to cope with the polishing of steel plates having different widths, etc., instead of the conventional brush roll in which the shaft and the brush element are integrated, the brush roll minute one, answer the purpose in preparation of example 1/1 0 There <br/> cormorants short roll element, attached to the stock
All maintenance is simple enough . Configuration 2. (Corresponding to claim 2), configuration 4. (Corresponding to claim 5), the convex step portion of the second key member is fitted in the concave step portion of the first key member, and the concave step portion of the latter key member is fitted in the convex step portion of the former key member. When the brush element is fitted into the shaft while the sinking key is contracted, that is, the first key member is not engaged with the key groove of the brush element, the brush element is attached to the shaft and the first key member is inserted. And the sunken key with the second key member provides a ready-to-standby standby state as described above.

According to the present invention, each of the brush elements is engaged with the shaft by a plurality of width-expandable sunk keys and key grooves arranged at equal intervals in the circumferential direction of the shaft and the brush element. There is. This configuration results in radial positioning or centering of the brush element with respect to the shaft with a widthwise expansion of the sunken key.

In the present invention, the sunken key and the keyway into which the key is fitted have a cross-section outline or trapezoid on the brush element side and an inverted trapezoid on the shaft side in the radial direction of the brush element and the shaft. When the contact points of the outer or contour of the trapezoid and the inverted trapezoid are located at the position to enter the brush element side and on the same line of the element and the concentric circle,
The sunken key and keyway transmit torque in their engagement,
In addition, it not only helps prevent the sinking key from falling off in the radial direction of the brush element under contraction in the width direction, but also improves the centering shown by the action of both the overhanging portions of the sinking key and the key groove of the cross-sectional shape.

In the present invention, when the sunk key is expanded in the width direction and engaged with the key groove of the shaft, there is substantially no gap between the shaft and the annular disk. The problem of runout is solved.

In the present invention, the portion of the depression key and the key groove on the brush element side has a cross-sectional shape that prevents the depression key from coming off in the radial direction of the brush element, and the depression key is formed into the key groove of the brush element under contraction. The reason why the key element is restrained from coming out of the key groove in the lengthwise direction in the fitted state is that the brush element can be moved in the form of a submerged key while being ready to be fitted on the shaft. The sunk key is expandable in the width direction so that the expansion key engages the keyway of the brush element in order to obtain the required keying between the brush element and the shaft.

[0042]

As described above, the present invention has an effect that it is possible to simplify the exchange of the brush rolls, and it corresponds to polishing or cleaning or cleaning treatment of steel plates having different widths. It is possible to achieve the task of making the maintenance simpler than before, and it is also effective in solving the problem of runout during operation of the brush roll of the prior art shown above.

[Brief description of drawings]

FIG. 1 (A) is a front view showing the outline of a brush roll according to the present invention, and FIG. 1 (B) is a sectional view showing a state where a brush element is keyed to a shaft.

FIG. 2 is a front view of the key groove shown in FIG. 1 (B).

FIG. 3 shows a perspective view of an annular disc used in the present invention.

FIG. 4 is a plan view of a first key member of the sunken key according to the present invention.

FIG. 5 shows a left end view of the key member of FIG.

FIG. 6 is a right side view of the key member.

7 is a sectional view taken along line VII-VII in FIG.

FIG. 8 is a front view of FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a plan view of a second key member of the sunken key according to the present invention.

11 shows a right side view of the key member of FIG.

12 is a sectional view taken along line XII-XII in FIG.

13 shows a front view of FIG.

FIG. 14 is a front view of a spacer according to the present invention.

FIG. 15 shows a bottom view of the spacer.

FIG. 16 is a side view of the spacer.

FIG. 17 is a plan view showing a contracted state of the sunken key according to the present invention.

FIG. 18 is a cross-sectional view showing a state where the sunken key is fitted into the key groove of the brush element under contraction. In this sectional view, the portion below the sinking key of the brush element is omitted.

FIG. 19 is a plan view of the sunken key with the spacer removed under the state of FIG. 17;

20 is a cross-sectional view showing a state where the sinking key in the state of FIG. 19 is fitted in the key groove of the brush element. In this sectional view, the portion of the brush element below the sinking key is omitted.

FIG. 21 is a plan view showing a state in which the second key member is pushed into the first key member from the state of FIG. 19 and the sunken key is expanded in the width direction.

FIG. 22 is a view showing a state in which the second key member is further changed from the state of FIG.
It is a top view which shows the state which pushed in with respect to the key member of FIG.

FIG. 23 is a reference diagram showing a procedure for attaching / detaching a roll element to / from a shaft.

[Explanation of symbols]

I brush roll C restraint means S spacer S1 stopper S2 stopper U brush element 1 Polishing bristles or cleaning threads 2 annular disc 3 shafts 4 sunken key 4a First key member 4b Second key member 5 keyway 5a Keyway of brush element 5b shaft keyway 6 key engagement part 7 convex step 8 concave steps 9 Bridge section 10 groove 11 concave step 12 convex step 13 Transition between convex step and concave step 14 Transition between convex step and concave step 15 recess 17 2 legs 18 hits

Claims (4)

(57) [Claims] 1. A brush roll in which brush elements made of a laminated body of annular disks having an outer peripheral edge implanted with abrasive bristles or cleaning threads are fitted in parallel on a shaft, wherein each of the brush elements and the shaft. And a plurality of shafts, a plurality of sunken keys arranged at equal intervals in the circumferential direction of the brush element are engaged by a sunken key and a key groove having a length not exceeding the length of the brush element, and the key groove is , Brush element side keyway part and shaft side key
Consists over the groove portion, the sectional shape of the sink key, the bra and a trapezoid and an inverted trapezoid
When touching at the position that goes inward in the radial direction of the element
And the contact point between the trapezoid and the inverted trapezoid is the brush.
It is located on the same line as the outer periphery of the element and concentric with
Brush element side keyway portion from the sink key has become a cross-sectional shape that prevents disconnect kick of the radial direction of the brush element, the sunk key is enabled expansion shrinkage in the width direction,
By expanding the sunken key attached to the brush element side key groove portion under contraction, the brush element side key groove portion
In the state of being fitted into the brush element side key groove portion under contraction, the stopper means prevents the brush element side key groove portion from coming off in the length direction. Characteristic brush roll. 2. A brush roll in which brush elements made of a laminated body of annular discs having abrasive bristles or cleaning threads planted on the outer periphery thereof are fitted in parallel on a shaft, each of the brush elements and the shaft. Is engaged by a plurality of sunk keys and key grooves arranged at equal intervals in the circumferential direction of the shaft and the brush element.
The brush element has a cross-sectional shape that prevents the sunken key from coming off in the radial direction. The sunken key has a first key member having a length that does not exceed the length of the brush element, and a second key member. Key members of the first key member, wherein the first key members are parallel to each other and are engaged with the side walls of the key groove, and the first key members are alternately arranged in the longitudinal direction on the inner side surface of the engaging parts. The convex step portion and the concave step portion formed by the above, the spring type bridge portion connecting the engaging portions so as to expand and contract in the width direction, and the second key member are movable in the length direction. The second key member has a recessed groove to be fitted therein, and the second key member has, on an outer surface thereof, recessed steps and projections of a shape and arrangement that match the protruding steps and the recessed steps arranged alternately on the inner surface of the engaging portion. A transition portion between the convex step portion and the concave step portion of the engaging portion of the first key member, and the concave step portion and the convex step portion of the second key member. The transitional portion between the two is inclined so that the second key member can move in the length direction with respect to the first key member, and the second key member is attached to an end portion on one end side thereof. A removable breakable stopper that controls the lengthwise insertion depth of the second key member in the recess with respect to the first key member. The first key member further has a concave portion on one end surface of the first key member that allows the stopper to move in the lengthwise direction of the second key member, and an inner edge side of the brush element on the other end surface thereof. A brush roll, further comprising a stopper that comes into contact with the outer surface. 3. A brush element constituted by a laminated body of annular discs having an outer peripheral edge on which abrasive bristles or cleaning threads are planted, a shaft side key groove portion and a brush opposite to this.
A brush element with a sunk key, comprising: a sunk key capable of engaging the brush element in parallel with a shaft by a key groove formed of a key element portion on the brush element side , wherein the sunk key is a brush element of the brush element. not exceed the length has become long, the brush element side keyway portion, said have been made several forms in the brush element peripheral surface at equal intervals in the circumferential direction, the sectional shape of the front Kishizumi key However, the trapezoid and inverted trapezoid
When touching at the position that goes inward in the radial direction of the element
And the contact point between the trapezoid and the inverted trapezoid is the brush.
It is located on the same line of the outer periphery and concentric elements, Ri by the brush element side keyway portion where the sink key fit this
Has become a cross section to prevent coming off in the radial direction before Symbol brush element, the sunk key is enabled expansion shrinkage in the width direction,
The brush element side key groove by extending the sunk keys mounted on said brush element slave keyway portion under contraction
Min being adapted to engage, also the brush element side key groove
In a state of fitted under contract in minutes, the bra by stopper means
Brush element with sinking key, characterized in that it does not come off in the length direction from the keyway part on the element side . 4. A brush element composed of a laminated body of annular disks having an outer peripheral edge on which abrasive bristles or cleaning threads are planted, and a sinking key capable of engaging the brush elements in parallel with a shaft. a brush-equipped sunk key androgynous, a plurality of bra at equal intervals in the circumferential direction on the brush element in the peripheral surface
The brush element side is formed with a key groove portion on the brush element side.
The key groove portion and the sunken key fitted into the key groove portion are the brush elements.
The sunken key has a cross-sectional shape that prevents the sunken key from coming off in the radial direction of the brush element from the child side key groove portion , and the sunken key has a first length that does not exceed the length of the brush element. And a second key member, wherein the first key member engages with the side wall of the brush element side key groove portion in parallel with each other, and the engaging portion. A convex step portion and a concave step portion, which are formed alternately on the inner side surface in the length direction, and a spring-type bridge portion connecting the engaging portions so as to expand and contract in the width direction; Of the key member of the second key member is movably fitted in the longitudinal direction, and the second key member is fitted to the outer surface of the stepped portion and the recessed step portion of the inner surface of the engaging portion which are alternately arranged. A transitional portion between the convex step portion and the concave step portion of the engaging portion of the first key member, which has a concave step portion and a convex step portion of a shape and arrangement. And a transition portion between the concave step portion and the convex step portion of the second key member is inclined so that the second key member can move in the length direction with respect to the first key member, The second key member cooperates with a removable spacer attached to one end of the second key member in the longitudinal direction of the second key member in the concave groove with respect to the first key member. A stopper capable of cutting or breaking the insertion depth is further provided on the one end side, and the first key member is inserted by the stopper moving in the length direction of the second key member. 2. A brush element with a sinking key, further comprising a recess that allows the above-mentioned recess on one end surface and a stopper on the other end surface that abuts on the inner edge side outer surface of the brush element.