JPH1094765A - Bolt cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make labor less, working time shorter, the efficiency of brushing higher, quality better, work safer and hygiene better. SOLUTION: This bolt cleaning device includes a bolt housing rack 29 which houses objective bolts 01 in vertical positions, a bolt hanging means 11 which hangs the bolts in a vertical direction changeably and adjustably in lifting speeds, a bolt rotating means 09, horizontal moving means 15, 16, 17, 18, 19, a brushing chamber 07 including rotary brushes 05 which are disposed in plural pieces (three pieces) symmetrically with the center line so as to brush the objective bolts 01 inserted in the vertical direction in the central part of the inside part, are settable in the positions and movements in a diametral direction and are rotationally driven by electric power, a dust collecting device 27 and an electron controller which controls the brushing stage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to, for example, RCP
(Reactor primary system circulating water pump) Remove large number of large bolts for regular inspection of large devices and equipment, such as opening bolts to tighten the main flange and cleaning (brushing) inside the containment vessel. The present invention relates to a device for cleaning and care.

[0002]

2. Description of the Related Art After a predetermined operation period, an RCP is overhauled in a containment vessel and is cleaned and inspected.
Generally, foreign matters, oxides, and the like are firmly attached to the thread portion of the bolt for tightening the main flange. Conventionally, this brushing operation is generally performed manually, and the object bolts are repeatedly laid on a suitable cutting board and rubbed with arm strength while pressing a wire brush from above against the threaded portion of the bolt. . Bolts are sometimes turned by hand and brushed all around. As a normal wire brush, there is a toothbrush-shaped one as shown in FIG. 4A, and as a rotating brush, a brush brush shown in FIG.
There are a wire foil shown in (C), a cup brush shown in (D), a bevel brush shown in (E), and the like.
For example, as shown in (G) and (H), it is used as a portable rotary brush driven by compressed air.

A brushing device as shown in FIG. 5 has been disclosed to improve the above manual operation. As shown in FIG.
The non-rotating brush 55 in the form of a toothbrush is brought into contact therewith, and the non-rotating brush 55 brought into contact with the outer peripheral surface of the target bolt 01 is swirled and rubbed by a turning motor 56 driven by compressed air to clean the target bolt 01. is there.

[0004]

The conventional bolt cleaning device is as described above. However, a toothbrush type or a portable power rotary brush type as shown in FIG. 4 requires a large amount of labor and a long working time and is inefficient. . Further, if the weight of the target bolt is 70 kg or more, there are safety problems during handling (transportation and handling), and sanitary problems due to generation of dust due to brushing. In addition, there has been a problem that work must be mechanized or automated in order to achieve uniform finish quality. Further, in the bolt cleaning device shown in FIG. 5, the problem of bolt handling remains, and the non-rotating brush 55 is merely swung around the target bolt 01 and rubbed, and the operation of peeling off the brush and flicking it off is also performed. Therefore, there is a problem that it is difficult and time-consuming to effectively remove hardly adhered foreign substances and oxides.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has reduced labor and working time.
An object of the present invention is to obtain a bolt cleaning device that improves brushing efficiency, improves finish quality, and homogenizes, improves work safety, and improves hygiene.

[0006]

A bolt cleaning apparatus according to the present invention includes a bolt storage rack for vertically storing a plurality of target bolts, and brushing the target bolt vertically inserted into a central portion of the inside. A brushing chamber including a plurality of rotating brushes that are provided symmetrically about the center and that can be set to move in the radial direction and that are driven and rotated by a power; Bolt suspending means, a bolt rotating means for rotating and driving the object bolt suspended by the bolt suspending means, and moving the bolt suspending means between the entire upper surface of the bolt storage rack and the upper part of the brushing chamber. Horizontal moving means that can be moved to the brushing chamber, a dust collecting device provided by connecting a suction hose to the brushing chamber, and at least the bolt Supporting means, said bolt rotating means, after the to and a horizontal movement means and an electronic controller for controlling the operation of the movement and rotation of said rotary brush, and inserting the object bolt at least in the brushing chamber,
After applying the axial feed at a predetermined feed speed distinguishing the screw portion and the other portion by the bolt suspension means and brushing with the rotating brush while giving the feed in the rotational direction by the bolt rotating means, The operation of the process until the object bolt is extracted is instructed and controlled by the electronic control unit.

[0007] The object bolt is pulled out from the bolt storage rack of the bolt cleaning device of the present invention by the bolt suspension means and moved by the horizontal moving means, and the object bolt is vertically inserted into the center of the interior of the brushing chamber.
The rotating brush is driven in contact with the rotating brush, and the object bolt is fed in the axial direction at a predetermined feed speed that distinguishes the threaded portion from the other portion by the bolt suspending means, and the rotational direction is fed by the bolt rotating means. When brushing is performed with the rotating brush while applying the rotating brush, the rotating brush performs the brushing mainly on a portion to which the slow feed is applied, such as the thread portion of the target bolt, and over the entire circumference. The object bolt is pulled out from the brushing chamber by the bolt suspension means, checked, and if necessary for re-brushing, inserted again into the brushing chamber and re-brushed. The target bolt is moved to a position where the target bolt is stored, suspended, and stored in the bolt storage rack.
The above steps are repeated for each target bolt. The main brushing process is performed by an electronic control unit. In the above process, the posture of the target bolt is always in the vertical direction, so that the process can proceed smoothly and quickly without waste. The dust generated by the brushing is collected by a dust collector, and does not pollute the environment.

Further, the horizontal moving means of the bolt cleaning device according to the present invention comprises a traversing arm rail for supporting the bolt suspending means so as to be able to traverse, and moving the bolt suspending means horizontally along the traversing arm rail. The traversing drive means comprises a center column which cantileverly supports one end of the traversing arm rail so as to be horizontally pivotable, and a turning means for horizontally rotating the traversing arm rail about the center column. With such a configuration, the bolt suspension means can be moved to a desired location in the horizontal plane with a relatively simple structure.

The height of the center column of the bolt cleaning device according to the present invention can be expanded and contracted. By doing so, the overall height of the bolt cleaning device when not in use is reduced, and storage and handling are facilitated.

In the bolt cleaning device according to the present invention, three rotating brushes are provided symmetrically in the brushing chamber. If a plurality of rotating brushes are provided symmetrically about the center, the contact pressure of the rotating brush against the target bolt during brushing can be balanced and stable brushing can be performed. However, with two rotary brushes, the target bolt tends to escape and is not stable. Further, if four or more are provided, it becomes more complicated, and there is a possibility that the rotating brushes may interfere with each other.

Further, at least the brushing chamber and the horizontal moving means of the bolt cleaning device according to the present invention are fixedly mounted on a cart having stable feet. If the bolt cleaning device is fixedly mounted on the carriage, the bolt cleaning device can be easily moved and handled. When the bolt cleaning device is used for brushing work, the work can be performed stably and safely by extending the stabilizing feet to stabilize the device.

Further, the bolt storage rack of the bolt cleaning device according to the present invention is arranged such that the height position of the object bolt stored therein is the same as the height position of the object bolt inserted into the brushing chamber. Formed or provided with a gantry. If the height position of the target bolt stored in the bolt storage rack is the same as the height position of the target bolt inserted into the brushing chamber, the target bolt is moved from the bolt storage rack into the brushing chamber, and When moving in the opposite direction, the operating distance is minimized, and the working time is also minimized.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a bolt cleaning device according to the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 01 denotes a bolt to be brushed and cleaned.
Reference numeral 02 denotes a suspension piece attached to the upper end of the target bolt 01, reference numeral 04 denotes a suspension head, and reference numeral 03 denotes a suspension pin for connecting the suspension piece 02 and the suspension head 04. Reference numeral 09 denotes a bolt rotation motor that rotates the target bolt 01 suspended by the suspension head 04, the suspension piece 02, and the like, 10 denotes a pulley that transmits the rotation of the bolt rotation motor 09 to the target bolt 01,
Numeral 12 indicates that the target bolt 01 is the hanging head 04 and the hanging piece 0
A hanging steel cable for lifting and lowering the guide hardware 13 connected via the 2 and the like, and 14 is a guide rail for guiding the guide hardware 13 up and down.

In FIG. 1, reference numeral 05 denotes a rotary brush for brushing the object bolt 01, reference numeral 06 denotes a brush rotation motor for driving the rotary brush 05 to rotate, and reference numeral 07 denotes a vertical cylindrical brushing chamber. Three rotating brushes 05 are provided symmetrically with respect to the center, and a target bolt 01 is vertically inserted into the center from above. The axial direction of both the object bolt 01 and the three rotating brushes 05 is up and down. The rotary brush 05 can be moved and set in the radial direction so as to be arbitrarily approached or separated from the target bolt 01. 08 is a brushing chamber 07
It is a sight window provided in.

In FIG. 1, reference numeral 11 denotes a hoist which is a bolt suspending and supporting means.
The guide hardware 13 to which the target bolt 01 is connected is lifted and lowered. The elevating speed can be arbitrarily changed and adjusted from a very low speed to a high speed. The hoist 11 is attached to an electric traversing device 15, and the electric traversing device 15 is suspended (supported) by a traversing arm rail 16 and traverses (runs) along the traversing arm rail 16. The traversing arm rail 16 is made of an H-shaped steel material or the like having sufficient bending rigidity, one end of which is attached to the upper end of the upper center column 18 by cantilever support. 17 allows the upper center column 18 to be turned around.
The upper center column 18 is supported by a telescopic supporting hardware 23 and has a structure capable of moving up and down so as to extend and retract in a telescopic manner in the lower center column 19. The upper center column 1
Hand winch 20, steel cable 21, sheave 22
Etc. are provided.

In FIG. 1, reference numeral 24 denotes a cart.
On the carriage 24, the brushing chamber 07, the lower center column 19 (the upper center column 18, the horizontal moving means 15, 1).
6, 17 etc., including the bolt suspension means 11, 12, 13, 14), the hand winch 20 and the like are fixedly mounted. Wheels (casters) 25 and outriggers (overhanging stable legs) 26 are provided on the lower surface of the cart 24. 27 is a dust collecting device (electric cleaner), and its suction hose 28
Is connected to the brushing chamber 07. Reference numeral 29 denotes a bolt storage rack, and a plurality of required bolts 01 are provided.
Are vertically formed so as to be housed side by side in front, rear, left and right. The bolt storage rack 29 is formed or mounted so that the height position of the object bolt 01 stored therein is the same as the height position of the object bolt 01 inserted to the deepest inside the brushing chamber 07. Is provided. In addition, the bolt cleaning device is provided with an electronic control device (not shown).

Next, the operation of the bolt cleaning device shown in FIGS. 1 and 2 will be described. For example, when an overhaul occurs during periodic inspection of the RCP (primary reactor circulating water pump),
A large number of bolts tightening the main flange and having a length of 1 m or more and a weight of 70 kg or more are to be cleaned (brushed). Generally, foreign matter and oxides are firmly attached to the target bolt 01, especially at the screw portion. The object bolt 01 to be cleaned which has been disassembled and opened is transferred to the bolt storage rack 29.
And put it on the side of the cart 24 of the bolt cleaning device. The cart 24 can also be moved by the wheels 25, and the outrigger 26 is protruded to an appropriate work place and is stably installed.

Next, as shown in FIGS. 1 and 2, a suspension piece 02 is screwed into the upper end of the object bolt 01 stored in the bolt storage rack 29. When disassembling the pump, it is sufficient if it is already installed. next,
The traversing arm rail 16 is turned by the arm turning motor 17, and the traversing arm rail 1 is turned by the electric traversing device 15.
6, the guide hardware 13, the guide rail 14, the suspension head 04, and the like are positioned on one desired target bolt 01 stored in the bolt storage rack 29. Next, the motor and the drum of the hoist 11 are turned to unwind the hanging steel cable 12 to lower the guide hardware 13, the hanging head 04, and the like. Are aligned with the pin holes of the suspending piece 02, and the corresponding holes of the suspending head 04 and the suspending piece 02 are connected through the suspending pins 03.

Next, as shown in FIG. 1 and FIG. 2, the hanging steel cable 12 is wound by the hoist 11, and the target bolt 01 is passed through the guide hardware 13, the hanging head 04, the hanging pins 03 and the hanging pieces 02, and the bolt storage rack. Lift it up from the storage location 29 and pull it out. Next, while the traversing arm rail 16 is turned by the arm turning motor 17, the traversing arm rail 16 is run by the electric traversing device 15,
The target bolt 01 suspended by the hoist 11 is brought above the center of the brushing chamber 07. Next, the hanging steel cable 12 is unwound with the hoist 11 and the guide hardware 13,
Object bolt 01 suspended by suspension head 04 or the like
Is suspended and inserted into the center of the brushing chamber 07. At this time, the three rotating brushes 05 are retracted radially outward so as not to hinder the insertion of the target bolt 01.

Next, as shown in FIG. 1, the three rotating brushes 05 are rotated by a brush rotating motor 06, moved toward the center of the brushing chamber 07, and fixed to a target bolt 01 inserted in the center. And brushing with appropriate pressure. During the brushing, the bolt 01 is rotated by the bolt rotation motor 09 via the pulley 10, the suspension head 04, the suspension pin 03 and the suspension piece 02 so that the entire bolt 14 is uniformly brushed. In addition, the hoist 11 winds the hanging steel cable 12 in and out, and lowers or raises the target bolt 01 via the guide hardware 13, the hanging head 04, and the like, so that the object bolt 01 is brushed over the entire length thereof. At this time, if the threaded portion of the target bolt 01 is brushed with emphasis, the lifting speed of the target bolt 01 is very slow when the rotary brush 05 is brushing the threaded portion of the target bolt 01, At times, raise and lower at medium or high speed. When the control is performed by an electronic control unit (not shown), these data are input in advance. During brushing, the electric cleaner 27 is operated to suck and collect dust generated in the brushing chamber 07.

As shown in FIG. 1, the condition in the brushing chamber 07 during the brushing can be seen from the viewing window 08. However, the work was advanced according to a program previously instructed to the electronic control unit, and the brushing was completed. In some cases, the hoist 11 is used to wind the hanging steel cable 12 and
Is lifted above the brushing chamber 07, and the finishing quality of the brushing of the target bolt 01 is checked. If foreign matter, oxides, and the like still adhere to the target bolt 01, the target bolt 01 is inserted into the brushing chamber 07 again to perform brushing again. If the finishing is successful, the traverse arm rail 16 is turned by the arm turning motor 17 and the electric traverse device 15 is turned.
To move the suspended target bolt 01 over the place to be stored in the bolt storage rack 29, and the hoist 11 unwinds the hanging steel cable 12 to store the target bolt 01 in the bolt storage position. It is stored in the rack 29. The above operation is repeated for each target bolt 01 one by one, and the brushing cleaning of all the target bolts 01 is performed.

Various modes (programs) for controlling the brushing process or operation procedure (sequence) described above by an electronic control unit (not shown) can be considered.
Shows an example of an automatic brushing sequence, in which the main steps of brushing are set to automatic, and the steps before and after that are set to manual. The brushing sequence shown in FIG. 3 will be described from the left side of FIG. 3 with reference to FIGS. 1 and 2. First, the traversing arm rail 16 is turned by the arm turning motor 17 by a manual (push button) operation, and The suspension head 15 is moved along the traversing arm rail 16 by the traversing device 15 to move the suspension head 04 right above the position of the desired target bolt 01 in the bolt storage rack 29. Next, the suspension steel cable 12 is unwound by the hoist 11 and the suspension head 04 is lowered, and the pulley 10
And the pin hole of the suspension head 04 is aligned with the pin hole of the suspension piece 02. The suspension head 03 is connected to the suspension piece 02 by inserting the suspension pins 03 into the matched pin holes. The above is performed by manual (push button) operation.

Next, as shown in FIG. 3 (see FIGS. 1 and 2), a start button for automatic brushing is pressed. An electronic control unit (not shown) advances the procedure of automatic brushing according to a program and data input in advance. First, the hoisting steel cable 12 is hoisted by the hoist 11, the target bolt 01 is raised, and the target bolt 01 is extracted from the bolt storage rack 29. next,
The traversing arm rail 16 is turned by the arm turning motor 17, and the traversing arm rail 1 is turned by the electric traversing device 15.
6 and bring the target bolt 01 right above the center of the brushing chamber 07. The hoisting steel cable 12 is unwound with the hoist 11 and the target bolt 01 is lowered into the center of the brushing chamber 07 and inserted. When the lower screw portion of the object bolt 01 reaches the position of the rotating brush 05, the rotating brush 0
5 is brought into contact with the target bolt 01 at a predetermined pressure and rotated to perform brushing. At this time, the target bolt 01 is also rotated by the bolt rotation motor 09. When the lower thread portion of the target bolt 01 is completely brushed, the rotating brush 05 brushes the non-thread portion of the target bolt 01 while lowering the target bolt 01 at a high speed. Object bolt 01
When the upper thread portion reaches the position of the rotating brush 05, the speed is switched to a very low speed, and the lower thread is brushed while rotating the upper brush portion with the rotating brush 05 while descending at a very slow speed.

As shown in FIG. 3 (see FIGS. 1 and 2),
After the brushing is completed to the upper end of the target bolt 01 in the descending stroke, the process is switched to the ascending stroke, and the brushing is carefully performed from the upper end to the lower end of the upper thread portion at a very low speed. Next, while the target bolt 01 is raised at a high speed, a portion of the target bolt 01 other than the thread portion is brushed. When the lower thread portion of the target bolt 01 reaches the position of the rotating brush 05, the mode is switched to the slow speed rise, and brushing is performed carefully from the upper end to the lower end of the lower thread portion. When all the above brushing is completed, the target bolt 01 is raised and extracted from the brushing chamber 07. The finish of the target bolt 01 is checked, and if necessary, the brush is inserted into the brushing chamber 07 again to repeat the brushing process. If the finish of the target bolt 01 is good, the arm swing motor 17 rotates the traversing arm rail 16, and the electric traversing device 15 traverses the traversing arm rail 16, so that the target bolt 01 is removed. At a predetermined position such as an average position (center position) on the bolt storage rack 29. Thus, the automatic brushing process is completed. In addition, while the rotating brush 05 is being rotated for brushing, the object bolt 01
Is rotated by the bolt rotating motor 09 so that the entire circumference of the target bolt 01 is uniformly brushed.

In FIG. 3 (see FIGS. 1 and 2), when the above-described brushing process is completed, an inspection and inspection of the target bolt 01 is performed to confirm that the bolt is good. Next, the traversing arm rail 16 is turned by the arm turning motor 17 by manual operation (push button), and traversed along the traversing arm rail 16 by the electric traversing device 15 to remove the target bolt 01 of the bolt storage rack 29. The hoist 11 unwinds the hanging steel cable 12, brings the target bolt 01 down, and makes it land in the storage rack 29. Next, after pulling out and removing the suspension pins 03, the suspension steel cable 12 is wound around with the hoist 11 to suspend the suspension head 04.
And wait for the next task.

As shown in FIG. 1, if the height position of the target bolt 01 stored in the bolt storage rack 29 is the same as the height position of the target bolt 01 inserted into the brushing chamber 07. Moving the target bolt 01 from the bolt storage rack 29 into the brushing chamber 07,
In addition, when performing the reverse movement, the operating distance is minimized, and the working time is also minimized.

As shown in FIGS. 1 and 2, when the guide hardware 13, the guide rail 14, and the like are used as bolt suspension means, the height of the target bolt 01 stored in the bolt storage rack 29 is set. The position is the position of the object bolt 0 inserted into the brushing chamber 07 and located at the lowest position.
It is good to make it the same as the height position of 1. This is to prevent the guide rail 14 from hitting the target bolt 01 or the hanging piece 02 attached to the upper end of the target bolt 01 when the traversing arm rail 16 is turned.

The brush wire of the rotary brush 05 is made of a tough material such as SUS (stainless steel) spring steel, so that the brush wire is durable and has no sagging due to its elasticity. Strong brushing can be performed, and a uniform and high brushing effect can be exhibited.

In the above description and FIG. 1, the electric traversing device 15, the traversing arm rail 16, the arm turning motor 17 and the upper center column 18 are used as horizontal moving means for moving the hoist 11 for hanging the object bolt 01 in a horizontal plane. ,
Although the polar coordinate system using the lower center column 19 and the like is shown, a horizontal moving means of an orthogonal coordinate system such as an XY plotter or an overhead traveling crane or a portal crane in a factory or the like may be used instead.

In the above description, the motive power of the various driving units is electric. However, for example, a configuration in which compressed air or the like is used as a motive power source may be employed.

In FIG. 1, what is fixedly mounted on the trolley 24 is a set of the brushing chamber 07 and the like, a horizontal moving means such as the lower center column 19 and a bolt hanging means, and the like. The electric cleaner 27, the bolt storage rack 29, and the like may also be placed on the vehicle.

[0032]

As described above, according to the present invention, a plurality of object bolts are vertically suspended from a bolt storage rack and inserted into the brushing chamber via horizontal moving means, and a plurality of bolts are provided symmetrically about the center. The rotating brush is used to make the feed speed different between the threaded part and the other parts for brushing, the bolts are oriented vertically throughout the entire process, the brushing process is automated by an electronic control unit, and the dust generated is collected. Because it was made to collect with a dust device, labor was reduced, work time was shortened, brushing was more efficient,
Effects such as improved finish quality, homogenization, improved work safety, and improved hygiene are obtained. Further, if the horizontal moving means is constituted by the traversing arm rail, the traversing driving means, the center column and the turning means, the bolt suspension means can be moved to a desired position in the horizontal plane with a relatively simple structure. Further, if the height of the center column is made expandable and contractable, the overall height of the bolt cleaning device when not in use is reduced, so that storage and the like become convenient. Also,
When three rotating brushes are used, the structure is simple, the stability is good, and there is no possibility of interference. In addition, if it is fixedly mounted on a cart having stable feet, the handling becomes convenient and the operation can proceed stably. In addition, if the height position of the target bolt stored in the bolt storage rack is the same as the height position of the target bolt inserted into the brushing chamber, the target bolt can be moved from the bolt storage rack into the brushing chamber. When moving to and vice versa, the working distance becomes the shortest, and the working time also becomes the shortest.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a bolt cleaning device according to the present invention.

2 (A) is a side view and FIG. 2 (B) is a front view showing a part of the suspension means of the bolt cleaning device shown in FIG.

FIG. 3 is a diagram showing an example of an automatic brushing sequence of the bolt cleaning device according to the present invention.

4A and 4B show a conventional bolt cleaning tool, wherein FIG. 4A is a side view of a toothbrush type wire brush, FIG.
(C) is a perspective view of a wire foil, (D) is a side view of a cup brush, (E) is a side view of a bevel brush, (F) is a side view of an angle sander, (G) is a side view of another angle sander, (H) is a side view of yet another angle sander.

5A and 5B show a conventional bolt cleaning device, wherein FIG. 5A is a side sectional view of a small bolt cleaning device, and FIG. 5B is a side sectional view of a large bolt cleaning device.

[Explanation of symbols]

01: target bolt, 02: hanging piece, 03: hanging pin, 04: hanging head, 05: rotating brush, 06:
Brush rotation motor, 07: brushing chamber, 0
8: Viewing window, 09: Bolt rotating motor, 10: Pulley, 11: Hoist, 12: Suspended steel cable, 13: Guide hardware, 14: Guide rail, 15: Electric traversing device,
16: traversing arm rail, 17: arm turning motor, 1
8: Upper center column, 19: Lower center column, 20:
Hand winch, 21: steel cable, 22: sheave, 23:
Telescopic support hardware, 24: trolley, 25: wheels, 26: outrigger, 27: electric cleaner, 28: suction hose,
29: bolt storage rack.

Claims (6)

[Claims] An apparatus for cleaning a large bolt mainly by brushing a screw portion thereof, wherein the bolt storage rack accommodates a plurality of target bolts in a vertical position, and is vertically inserted into a central portion of the inside. A brushing chamber including a rotary brush that is provided with a plurality of centers symmetrically so as to brush the object bolt and that can be set to move in the radial direction and that is driven by power rotation; A bolt suspension means for suspending the object bolt suspended by the bolt suspension means in a vertical direction, a bolt rotating means for rotating and driving the target bolt suspended by the bolt suspension means, Horizontal moving means that can be moved between the upper part of the brushing chamber,
A dust collector provided with a suction hose connected to the brushing chamber; and an electronic control unit for controlling movement and rotation of at least the bolt suspension means, the bolt rotating means, the horizontal moving means and the rotating brush. After at least inserting the target bolt into the brushing chamber, the bolt suspension means applies an axial feed at a predetermined feed speed that distinguishes the threaded portion from the other portion, and rotates the bolt. A bolt cleaning device characterized in that, after brushing with the rotary brush while giving a feed in the rotation direction by means, the operation of a process until the object bolt is extracted is commanded to the electronic control device and controlled. . 2. The traversing arm rail supporting the bolt suspension means so as to be able to traverse, the traversing drive means moving the bolt suspension means in a horizontal direction along the traversing arm rail, and A center column that cantileverly supports one end of the traversing arm rail so as to be horizontally pivotable,
2. The bolt cleaning device according to claim 1, further comprising a turning means for horizontally turning the traversing arm rail about the center column. 3. The bolt cleaning device according to claim 2, wherein the height of the center column is extendable. 4. The bolt cleaning device according to claim 1, wherein three rotating brushes are provided symmetrically about the center in the brushing chamber. 5. The apparatus according to claim 1, wherein at least the brushing chamber and the horizontal moving means are fixedly mounted on a cart having stable feet. The bolt cleaning device as described. 6. The bolt storage rack is formed such that a height position of the target bolt stored therein is the same as a height position of the target bolt inserted into the brushing chamber to the deepest. The bolt cleaning device according to any one of claims 1, 2, 3, 4, and 5, further comprising: a frame.