KR102366725B1 - Jig for easy extraction and insertion of brake pistons - Google Patents

Abstract

The present invention relates to a maintenance jig for drawing out and inserting a piston during brake maintenance work of a wind power generator having a cylinder and a piston, and more specifically discloses a technical field related to a jig that is easy to draw out and insert a piston for a brake. In the case of brake maintenance work including a yaw brake of a wind power generator, a piston is drawn out and inserted into the cylinder. In order to minimize the damage of the piston and the cylinder, the piston can be drawn out and inserted in the vertical direction. The jig that is easy to withdraw and insert a piston for a brake includes a cylinder part, a rotating bundle, and a first inserting and drawing out bundle.

Description

Jig for easy extraction and insertion of brake pistons

The present invention relates to a maintenance jig for withdrawing and inserting a piston during brake maintenance work of a wind power generator having a cylinder and a piston. However, it is a technical field related to a jig for easy extraction and insertion of a piston for a brake capable of withdrawing and inserting the piston in a vertical direction so as to minimize damage to the piston and the cylinder.

In general, hydraulic brakes that generate braking force by supplying hydraulic pressure are provided with hydraulic cylinders and pistons, and these cylinders and pistons are maintained at regular intervals so that there is no problem in brake operation by hydraulic pressure. The hydraulic brakes of the rotor brakes are installed and they are being serviced periodically.

As a prior art for such a yaw brake of a wind power generator, it is described in Korean Utility Model Publication No. 20-0451113 'a yaw brake for a wind power generator', which is, as shown in FIG. 1, a yaw drive including a generator It is rotatably installed at the top of the tower so that the yaw drive can be rotated according to the wind direction.

And a yaw brake operated by hydraulic pressure is installed between the tower of the wind power generator and the yaw drive, so that the degree of rotation of the yaw drive from the tower is appropriately adjusted and maintenance of the yaw drive can be performed safely.

The yaw brake that controls the rotation of the yaw drive from the tower generally has a structure in which a pad contacts and pressurizes a circular disk, and a pair of calipers is coupled to the disk so that braking force is generated by the force pressing the pad on both sides of the disk. It has a structure in which a braking force is generated by supplying hydraulic pressure to the pair of calipers.

More specifically, as shown in FIG. 2 , the yaw brake 30 is equipped with calipers 33 and 34 that are divided up and down so that an inner groove 32 into which the disk 31 is inserted is formed in the front, both side calipers Cylinders 35 and 36 are formed in the caliper to operate toward the inner mouth groove, a piston 37 is installed in each of these cylinders, and a pad fixing plate 38 for fixing the pad 39 is coupled to the piston.

An oil chamber 40 is installed in the cylinder, and a fluid supply pipe for generating hydraulic pressure is connected to each cylinder, and the piston moves to the disk side according to the hydraulic pressure to press the pad 39 to generate braking force.

In the prior art, three large and small oil seals 40 are installed at regular intervals so that the fluid does not leak through the gap between the cylinder and the piston, and the piston is drawn out from the cylinder at regular intervals to prevent deterioration of the oil seal, etc. At the same time, the condition of cylinders and pistons is checked.

In the prior art described above, even when the upper and lower calipers are separated for repair of the caliper such as replacing the pad 39, the connection pipe 41 that supplies the fluid to the upper and lower calipers is interconnected with an externally exposed and flexible material, so fluid leakage It is described that concerns can be eliminated, and concerns such as hydraulic oil loss can also be eliminated.

However, in the prior art, the fluid does not leak between the upper and lower calipers during maintenance work of the caliper drawing out the piston, but because the hydraulic pressure is supplied to the cylinder, the hydraulic oil leaks or scatters to the outside at the moment the piston is drawn out, resulting in loss of fluid and loss of fluid in the workshop. There are problems such as pollution.

In addition, in the prior art, there is a problem that the piston is drawn out even if the hydraulic pressure for withdrawing the piston does not constantly act on the lower surface of the piston, so that the piston is in contact with the inner surface of the cylinder and the inner wall of the cylinder and the oil seal are damaged. There is a problem in that it has to be supplied by a hydraulic pressure generating device, and there is a problem that such a separate hydraulic device operation and management man is required.

As another prior art related to the yaw brake of a wind power generator, Korean Patent Publication No. 10-2014-0096183 'a yaw brake for wind power generation' is known, which is the upper part of the tower 42 as shown in FIG. A ring-shaped disk plate 43 is fixedly installed there. And the nacelle 44 and the disk plate, which are rotatably installed with respect to the tower, are connected by the yaw brake 45, and the rotation of the nacelle can be adjusted.

And, as shown in FIG. 4, the yaw brake is provided with a hydraulic cylinder part 49 including a piston 47 and a cylinder groove 48 providing a pressing force to the brake pad 46 to press the disc plate, and , the sealing member 50 is inserted into the gap between the cylinder and the cylinder groove to prevent the pressure fluid supplied to the cylinder groove from leaking to the lower part of the piston.

In the other prior art described above, matters related to maintenance work are not described in the specification, but as in the prior art, in order to prevent deterioration of the sealing member installed so that fluid does not leak through the gap between the cylinder and the piston, etc. Inspection and maintenance should be performed by withdrawing the piston from the cylinder at regular intervals.

However, in the other prior art, the same problem as in the prior art occurs because the operation of withdrawing the piston from the cylinder is performed by applying hydraulic pressure from a separate hydraulic device as in the prior art described above.

In order to solve the above problems, Republic of Korea Patent Registration No. 10-2019113 'jig for maintenance of hydraulic brakes' is known, but when maintenance of hydraulic brakes including yaw brakes of wind power generators, fluid is not used to withdraw the piston from the cylinder. By forming and using a jig for maintenance of hydraulic brakes using manual power and electromagnet suction power, it prevents contamination of the workplace due to fluid leakage, reduces operating manpower by using a separate hydraulic device, and also prevents the piston from being pulled out and inserted into the cylinder. It is designed to prevent damage to the oil seal and cylinder wall as it moves up and down in a straight line without contacting the wall.

However, in the Republic of Korea Patent No. 10-2019113, a piston is drawn out and inserted through a suction force using an electromagnet, so that the operation of the electromagnet is stopped or the suction power is lowered even with a small impact, which may cause a problem that the piston is dropped, and also in the Republic of Korea Registered Patent No. 10-2019113 has a limitation that only withdraws the piston through the suction force using an electromagnet and cannot insert it. Since it has various types of problems, such as damage, the purpose of this invention is to prevent and solve the above problems by using the jig for easy extraction and insertion of the piston for brake of the present invention.

Republic of Korea Registered Utility Model No. 20-0451113 (2010.11.19.) Republic of Korea Patent No. 10-1444720 (2014.09.19.) Republic of Korea Patent Registration No. 10-2019113 (2019.09.02.)

The present invention is a technology devised to solve the problems according to the above-described prior art, and in the conventional brake piston insertion and withdrawal device, when inserting and withdrawing a piston from a cylinder, there is a risk that the cylinder and the piston may be damaged, and the piston may be vertically It is difficult to stably insert and withdraw in the direction, and the cumbersome problem of having to replace the equipment itself according to the size of the working groove of the piston occurs;

As a solution to this, when withdrawing the piston from the cylinder during brake maintenance work including the yaw brake of the wind power generator, the insertion and withdrawal bundle is inserted into the working groove of the piston, and the outer diameter of the insertion and withdrawal bundle is expanded. By allowing the piston to be stably and firmly gripped through the that is the main purpose of

In addition, in the case of wind power plants, since they are located far from downtown areas, such as mountainous areas and coastal areas, when repairing the brakes of wind power plants, it is economical to dismantle the facilities, move them to the city center, repair them, and then move them back to the site to assemble them. Loss and inconvenience occur, and the brake of the wind power plant is not only located at the top of the tower of the wind power plant, but also weighs 100 kg. There is an economic loss and risk that equipment must be mobilized. Moreover, if the brake is broken and repaired, wind power generation cannot be produced during the repair, resulting in a large economic loss. To solve this problem, repair for the brake And what used to take tens of hours for replacement, the jig for easy extraction and insertion of the piston for brake is moved to the upper part of the wind power plant tower in the field to repair and replace the brake piston in just a few hours. Its main purpose is to minimize the risk of economic loss and the mobilization of additional personnel and equipment.

In order to realize the above object, at least one cylinder groove is formed, the piston is installed in the cylinder groove, and the piston of a brake in which an operation groove is formed on the upper part of the piston is drawn out and inserted. In the jig for the jig, doedoe installed spaced apart from the upper part of the brake, the cylinder part which is positioned and installed on the upper part of the piston of the brake, and the upper part is coupled to the lower part of the rod of the cylinder part, and the rotating bundle in which the coupling part having a thread formed in the lower part is formed; The lower part of the rotating bundle is screwed to the inner lower surface, the upper part is expanded outward as the rotating bundle is screwed together, and the first insertion and withdrawal bundle to which the upper outer circumferential surface extended to the working groove of the piston is in close contact. It provides a jig for easy extraction and insertion of the piston for the brake, characterized in that it includes.

In addition, the rotating bundle of the present invention is formed extending from the upper body coupled to the lower part of the rod of the cylinder part and the lower part of the upper body, the lower body and the lower surface of the lower body, the diameter of which decreases toward the lower part, protruding from the lower surface of the lower body. , is configured to include a coupling portion in which a thread is formed on the outer periphery, and the first inserting and withdrawing bundle includes a lower body of the rotating bundle in the upper portion, and a first insertion groove and an inner upper surface whose diameter decreases toward the bottom It characterized in that it is configured to include a coupling groove to which the coupling portion of the rotating bundle is screwed.

In addition, the first insertion and withdrawal bundle of the present invention has a coupling groove formed on its upper surface, a first body inserted into the working groove of the piston, and a protrusion formed on the upper portion of the first body, the circumference of the first body A plurality of first cohesive divided portions formed along the , and an inner surface corresponding to the outer surface of the lower body of the rotating bundle, and protrudingly formed on the upper portion of the first cohesive division, the inner surface of the lower body of the rotating bundle It is formed to correspond to the outer surface of the body, and the outer surface is characterized in that it is configured to include a head division formed in a plane.

In addition, the first cohesive divided portion of the present invention is formed to protrude in the shape of an arc on the upper surface of the first body, a plurality of lower connection parts and the lower portion protruding to form an outer diameter smaller than the outer diameter of the first body It is formed to protrude on the upper part of the connection part, and the outer surface is characterized in that it is configured to include a plurality of first adhesion units corresponding to the inner surface of the working groove of the piston.

In addition, the head division part of the present invention is formed to protrude in the shape of an arc on the upper surface of the first adhesion unit, a plurality of upper connection parts protruding at the same location as the lower connection part with the same diameter and protruding from the upper part of the upper connection part It is characterized in that it is configured to include a plurality of head units to be formed.

In addition, the present invention provides a second insertion and extraction in which the first insert and pull-out bundle is inserted into and coupled to the upper part, and the upper part is extended outwardly by the upper part of the first insert and pull-out bundle as the rotating bundle is screwed together. It is characterized in that it is configured to include a withdrawal bundle.

In addition, the second insertion and withdrawal bundle of the present invention is inserted into the working groove of the piston, and a second body through which the second insertion groove 512 is formed and protrudingly formed on the upper portion of the second body, 2 It is formed along the periphery of the body, and the inner surface is characterized in that it is configured to include a second cohesive dividing portion formed to correspond to the outer surface of the first insert and take-out bundle.

In addition, the second cohesive dividing portion of the present invention is formed to protrude in the shape of an arc on the upper surface of the second body, a plurality of connecting portions and the connecting portion protruding to form an outer diameter smaller than the outer diameter of the second body It is formed to protrude on the upper part, and the outer surface is characterized in that it is configured to include a plurality of second adhesion units corresponding to the inner surface of the working groove of the piston.

In addition, when inserting the piston into the brake of the present invention, it is possible to select and use any one of the first insertion and withdrawal assembly, the first insertion and extraction assembly, and the small insertion assembly and the large insertion assembly of the insertion assembly. characterized in that it is composed.

The jig for easy removal and insertion of the piston for the brake according to the present invention presented as described above is when the piston is inserted and withdrawn from the cylinder during brake maintenance including the yaw brake of the wind power generator, the insertion and withdrawal bundle is placed in the working groove of the piston By internally inserting and extending the outer diameter of the insertion and withdrawal bundle through the rotating assembly so that the grip of the piston is made stable and solid, the piston can be stably and easily drawn out and inserted in the vertical direction, so that the cylinder and the piston It is possible to obtain the effect of easy maintenance of the brake by minimizing damage.

In addition, according to the size of the working groove formed on the upper part of the piston, the present invention installs or releases the second insertion and withdrawal bundle at the lower part of the first insertion and withdrawal bundle, so that maintenance is possible more easily without replacing the entire equipment. effect can be obtained.

In addition, by arranging the jig for easy extraction and insertion of the piston for the brake on site to enable repair and replacement of the piston for the brake in the field, the economic loss of moving a long distance to the city center for repair and replacement of the piston for the brake and Inconvenience can be avoided, and the economic loss and risk of moving heavy brakes between the ground and the top of the wind farm tower by mobilizing separate personnel and equipment can be avoided, and wind power generation can be produced while the brakes are being repaired. It is possible to obtain an effect that can minimize the economic loss caused by the lack of

1 to 4 are views showing a conventional wind power generator and a brake installed in the wind power generator;
5 is a plan view showing a brake according to a preferred embodiment of the present invention.
6 is a plan view showing a jig according to a preferred embodiment of the present invention.
7 is a front view showing a jig according to a preferred embodiment of the present invention.
8 is a side view showing a jig according to a preferred embodiment of the present invention.
9 is a plan view showing a jig on which a brake is seated according to a preferred embodiment of the present invention.
10 is a front view showing a jig on which the brake is seated according to a preferred embodiment of the present invention.
11 is a side view showing a jig on which a brake is seated according to a preferred embodiment of the present invention.
12 is a front view showing a jig in which the rotating bundle and the first, first, and second insertion and withdrawal bundles are disassembled according to a preferred embodiment of the present invention.
13 is a perspective view showing a rotating bundle, a first insert and take-out bundle, and a second insert and pull-out bundle according to a preferred embodiment of the present invention;
14 is an exploded perspective view showing a rotating bundle, a first insert and pull-out bundle, and a second insert and pull-out bundle according to a preferred embodiment of the present invention.
15 is an exploded side view showing a rotating bundle, a first insert and take-out bundle, and a second insert and take-out bundle according to a preferred embodiment of the present invention;
16 is a side cross-sectional view showing the rotating bundle, the first insert and take-out bundle, and the second insert and take-out bundle according to a preferred embodiment of the present invention.
17 is a side cross-sectional view showing the expansion (a) of the first insert and pull-out bundle and the expansion (b) of the second insert and pull-out bundle according to the rotation of the rotating bundle according to a preferred embodiment of the present invention.
18 is a perspective view (a) and a side cross-sectional view (b) showing a small and large insert bundle according to a preferred embodiment of the present invention.
19 is a front view showing the insertion of the piston using the insertion bundle according to the preferred embodiment of the present invention.

The present invention relates to a maintenance jig for maintenance by withdrawing and inserting the piston from the cylinder during brake maintenance work of a wind power generator having a cylinder and a piston. (hereinafter referred to as 'brake 100'.) During maintenance work, the piston 120 is pulled out from the cylinder for maintenance and inserted again, but damage to the cylinder and the piston 120 is prevented when the piston 120 is pulled out. It is a technology related to a jig that can easily and stably withdraw the piston 120 in the vertical direction so that it can be minimized and that it is also easy to insert and withdraw the piston 120 for a brake.

In the configuration for achieving the present invention as described above, at least one cylinder groove 110 is formed, a piston 120 is installed in the cylinder groove 110 , and an operation groove 122 is provided on the upper portion of the piston 120 . In the jig for withdrawing and inserting the piston 120 of the brake 100 in which ) is formed, it is installed spaced apart from the upper part of the brake 100, and the position is adjusted on the upper part of the piston 120 of the brake 100 a cylinder unit 200 to be installed; and a rotating bundle 300 having an upper portion coupled to a lower portion of the rod 210 of the cylinder portion 200, and a coupling portion 330 having a screw thread formed thereon; And the lower part of the rotary bundle 300 is screwed to the inner lower surface, and the upper part expands outward as the rotary bundle 300 is screwed, and it expands in the operating groove 122 of the piston 120 . It is characterized in that it is configured to include; a first insert and pull-out bundle 400 to which the upper outer peripheral surface is in close contact.

In addition, the rotating bundle 300 of the present invention has an upper body 310 coupled to a lower portion of the rod 210 of the cylinder unit 200; The lower body 320 with a smaller diameter; and a coupling part 330 protruding from the lower surface of the lower body 320 and having a screw thread formed on the outer periphery; The lower body 320 of the 300 is inserted, the first insertion groove 414 having a smaller diameter toward the lower part; and the coupling part 330 of the rotating bundle 300 on the inner upper surface is screwed together. It is characterized in that it comprises a; groove (412).

In addition, the first inserting and withdrawing bundle 400 of the present invention has a coupling groove 412 formed on its upper surface, and a first body 410 that is inserted into the operation groove 122 of the piston 120; and the A plurality of protrusions are formed on the upper portion of the first body 410 , are formed along the circumference of the first body 410 , and the inner surface is formed to correspond to the outer surface of the lower body 320 of the rotating bundle 300 . a first coherent division unit 420; and a head portion protruding from the upper portion of the first cohesive division 420 and having an inner surface corresponding to the outer surface of the lower body 320 of the rotating bundle 300, the outer surface of which is formed as a flat surface Installment 430; characterized in that it is configured to include.

In addition, the first cohesive dividing portion 420 of the present invention is formed to protrude in the shape of an arc on the upper surface of the first body 410, so that an outer diameter smaller than the outer diameter of the first body 410 is formed. A plurality of lower connection portions 422 protrudingly formed; and a plurality of first adhesion units protruding from the upper portion of the lower connection portion 422 and having an outer surface corresponding to the inner surface of the operating groove 122 of the piston 120 ( 424);

In addition, the head dividing unit 430 of the present invention is formed to protrude in the shape of an arc on the upper surface of the first adhesion unit 424, and a plurality of protruding parts with the same diameter as the lower connection part 422 at the same location. An upper connection portion 432; and a plurality of head units 434 protruding from the upper portion of the upper connection portion 432; characterized in that it is configured to include.

In addition, in the present invention, the first insertion and withdrawal bundle 400 is inserted into and coupled to the upper portion, and as the rotating bundle 300 is screwed, the upper portion is formed by the upper portion of the first insertion and withdrawal bundle 400 . It is characterized in that it is configured to include; a second insert and pull-out bundle 500 extending outwardly.

In addition, the second insertion and withdrawal bundle 500 of the present invention is inserted into the operating groove 122 of the piston 120, the second body 510 is formed through the second insertion groove 512; and The second body 510 is formed to protrude from the upper portion, is formed along the circumference of the second body 510, and the inner surface is formed to correspond to the outer surface of the first insert and pull-out bundle (400) It is characterized in that it is configured to include;

In addition, the second cohesive dividing part 520 of the present invention is formed to protrude in the shape of an arc on the upper surface of the second body 510, so that an outer diameter smaller than the outer diameter of the second body 510 is formed. A plurality of connecting portions 522 protrudingly formed; and a plurality of second adhesion units 524 protruding from the upper portion of the connecting portion 522 and having an outer surface corresponding to the inner surface of the operating groove 122 of the piston 120 It is characterized in that it is composed of;

In addition, in the case of inserting the piston 120 into the brake 100 of the present invention, the first insertion and withdrawal assembly 400 , the first insertion and withdrawal assembly 400 , and the small insert assembly of the insertion assembly 600 . And it is characterized in that it is configured so that it is possible to select and use any one of the large insert bundle.

Hereinafter, the present invention will be described in detail with reference to FIGS. 5 to 17 showing an embodiment of the present invention.

First, in the brake 100 including the yaw brake of the wind power generator, as shown in FIGS. 1 to 4 , at least one cylinder groove 110 is formed, and the piston 120 is formed in the cylinder groove 110 . installed, and an operating groove 122 is formed in the upper portion of the piston 120 .

The present invention inserts the insertion and withdrawal bundle, that is, the first insertion and withdrawal bundle 400 or the second insertion and extraction bundle 500, into the operating groove 122 formed on the upper portion of the piston 120, and then inserts the rotating bundle ( By rotating 300) to expand the outer diameter of the first inserting and withdrawing bundle 400 or the second inserting and withdrawing bundle 500, the piston 120 is stably and firmly gripped by the piston 120 When the piston 120 is inserted or pulled out in the vertical direction, and the inner diameter of the piston 120 is small, the piston 120 is inserted or pulled out only by the first insertion and withdrawal bundle 400, and the inner diameter of the piston 120 is The large-sized one is to insert or withdraw the piston 120 in a state in which the first insertion and withdrawal assembly 400 and the second insertion and extraction assembly 500 are combined.

The cylinder part 200, which is a main component for achieving the present invention, is

It is installed spaced apart from the upper part of the brake 100, and is positioned and installed on the upper part of the piston 120 of the brake 100, and the rod 210 provided in the lower part is operated by an operator and is lifted up and down. By elevating the rotary assembly 300, the first insertion and withdrawal assembly 400, and the second insertion and extraction assembly 500, which will be described in detail later, the piston 120 is withdrawn from the cylinder groove 110 of the cylinder or maintained After (repair or replacement) is completed, the piston 120 is inserted into the cylinder groove 110 of the cylinder.

Specifically, the cylinder part 200 of the present invention has a lower base plate (not shown) for seating the brake 100 separated from the wind power generator on the upper part, and a plurality of vertical posts (not shown) from the lower base plate to the upper part. It is configured to include an upper base plate (not shown) that is installed to be spaced apart, and an electric cylinder (not shown) which is installed to be movable left and right or front and rear on the upper base plate and provided with a rod 210 at the lower part.

That is, the cylinder part 200 of the present invention moves the electric cylinder left and right or forward and backward on the upper base plate and then fixes it so that it is installed spaced apart from the upper part of the brake 100 separated from the wind power generator, preferably the brake The position is adjusted and installed so that the rod 210 of the electric cylinder is positioned in the upper part of the piston 120 of 100, that is, in the center of the operating groove 122 of the piston 120.

At this time, the upper base plate is configured to include a moving hole (not shown) formed so that the electric cylinder can be moved left and right or forward and backward, and preferably, the piston 120 of the brake 100 is mostly arranged in the horizontal direction. Therefore, it is configured to include a moving hole formed in the horizontal direction so that the electric cylinder can be moved in the left and right direction.

The electric cylinder is installed on the outside, the lower part is penetrated and fixed, and it is configured to include a cylinder bracket (not shown) fixed after moving along the movement hole of the upper base plate, and more stably by the cylinder bracket It works and the rod is raised and lowered.

It is installed on the upper part of the lower base plate and is configured to include four toggle clamps (not shown) that can press and fix the upper surface of the brake 100 to be seated, and the piston 120 is inserted by the toggle clamp Or to make withdrawals more stable. In this case, the toggle clamp can be used by selecting any one of a manual type, a pneumatic type, and a hydraulic type, and the number of the toggle clamps can be adjusted to a plurality if necessary.

The rotating bundle 300, which is a main component for achieving the present invention, is

The upper part is coupled to the lower part of the rod 210 of the cylinder part 200, and the threaded coupling part 330 is formed at the lower part, and the coupling groove of the first inserting and withdrawing bundle 400 to be described in detail later is formed. As the coupling part 330 is screwed to 412 and rotated, the outer diameter of the first insertion and withdrawal bundle 400 is expanded, and the first insertion and When the pull-out bundle 400 is fixed, or when the second insert and pull-out bundle 500 is installed on the outside of the first insert and pull-out bundle 400, the outer diameter of the first insert and pull-out bundle 400 is expanded As a result, the outer diameter of the second inserting and withdrawing bundle 500 is expanded so that the second inserting and withdrawing bundle 500 inserted into the operating groove 122 of the piston 120 is pressed and fixed.

In addition, the rotating bundle 300 of the present invention has an upper portion coupled to the lower portion of the rod 210 of the cylinder unit 200 and inserted into the operating groove 122 of the piston 120, and thus fixed first insertion and The withdrawal bundle 400 or the second insertion and withdrawal bundle 500 is raised and lowered by the operation of the cylinder unit 200 .

Specifically, the rotating bundle 300 of the present invention includes an upper body 310 coupled to a lower portion of the rod 210 of the cylinder unit 200, and an extension formed on the lower portion of the upper body 310, as it goes toward the lower portion. It is configured to include a lower body 320 having a smaller diameter, and a coupling portion 330 protruding from the lower surface of the lower body 320 and having a screw thread formed on the outer periphery.

In addition, the upper body 310 is formed extending on the upper portion, the outer surface is configured to include a head (not shown) formed in a polygonal shape, the head is then the rotating bundle 300 of the present invention is the first When it is rotated and screwed into the insertion and withdrawal bundle 400, it can be smoothly rotated by the lever, which is the upper portion of the first insertion and withdrawal bundle 400 by the rotating assembly 300 of the present invention in the outward direction. This is because it has to be screwed with a strong rotation when it is expanded to

A male screw is formed in the lower portion of the coupling part 330 and a female screw is formed inside the first body 410 of the first inserting and withdrawing bundle 400. When the rotating bundle 300 rotates, the coupling part The 330 and the first body 410 are configured to be coupled with screws.

In addition, the upper body 310 and the head are coupled to the rod 210 of the cylinder part 200 in order to be stably and firmly coupled to the rod 210, a coupling groove (not shown) that is formed so that the rod 210 can be inserted and coupled. is configured to include, and the upper body 310 has a pinhole (not shown) that is formed through both sides of the outer periphery, and a coupling pin (not shown) that is fastened through the pinhole and the rod 210 to be coupled to the rod 210 ) is included.

That is, the lower part of the rod 210 of the cylinder part 200 is inserted into the coupling groove formed up to the upper body 310 through the head, and a pin coupling hole corresponding to the pin hole formed in the upper body 310 . (not shown) is formed and is firmly coupled to the rotating bundle 300 of the present invention, that is, the upper body 310 by the coupling pin.

As the lower body 320 is formed to have a smaller diameter toward the lower part, when the rotating bundle 300 of the present invention is screwed to the first inserting and pulling-out bundle 400 to be described in detail later, it slides naturally. The upper portion of the first insertion and withdrawal bundle 400 is extended outwardly so that the outer circumferential surface of the first insertion and withdrawal bundle 400 can be firmly attached to the operation groove 122 of the piston 120 .

That is, the lower body 320 has a tapered surface formed on the outer periphery toward the bottom toward the inner side, and the first insertion and withdrawal bundle 400 having an inner peripheral surface corresponding to the tapered surface is formed in the rotating bundle of the present invention. When 300 is screwed and the tapered surface slides along the inner circumferential surface of the first insertion and withdrawal bundle 400, the upper portion of the first insertion and extraction bundle 400 is pressed outwardly to expand the diameter. .

At this time, the inner circumferential surface of the first insertion and withdrawal bundle 400 is formed in an inner circumferential direction corresponding to the tapered surface of the lower body 320, that is, the inner circumferential surface toward the lower portion, the lower body 320 has a tapered surface. As it is configured to include a corresponding tapered surface formed with a minutely smaller diameter than that, the upper portion of the first inserting and withdrawing bundle 400 is extended outwardly as described above.

In addition, the tapered surface and the corresponding tapered surface are defined as flat surfaces due to the nature of the surface, but when looking at the outer periphery of the lower body 320 and the inner peripheral surface of the first insertion and withdrawal bundle 400 from the side, it is named based on It means the shape of the diameter of the outer periphery of the lower body 320 and the inner circumferential surface of the first insertion and withdrawal bundle 400 .

The coupling part 330 is a coupling formed on the inner upper surface of the first inserting and withdrawing bundle 400, that is, the upper surface of the first body 410 of the first inserting and withdrawing bundle 400, which will be described in detail later. In order to be screwed into the groove 412, a thread is formed on the outer periphery, and the rotating bundle 300 of the present invention is rotated and screwed so that it is naturally and stably in the lower direction of the first insertion and withdrawal bundle 400. By sliding and moving, the effect of allowing the upper portion of the first inserting and withdrawing bundle 400 to be expanded more stably is realized.

The first insert and pull-out bundle 400, which is a main component for achieving the present invention, is

The lower part of the rotating bundle 300 is screwed to the inner lower surface, and the upper part is expanded outward as the rotating bundle 300 is screwed, and the piston 120 is The upper outer circumferential surface extended to the operation groove 122 is in close contact, and is firmly coupled to the operation groove 122 of the piston 120 by the rotating bundle 300 , and by the operation of the cylinder unit 200 , the piston (120) is withdrawn or inserted.

That is, after the first insertion and withdrawal bundle 400 of the present invention is inserted into the operation groove 122 of the piston 120, the lower part of the rotary bundle 300 is screwed to the inner lower surface, and thus the outer diameter of the upper part The expanded upper outer circumferential surface is in close contact with the working groove 122 of the piston 120 to be firmly coupled with the piston 120 , so that the piston 120 can be pulled out and inserted.

At this time, in the first inserting and withdrawing bundle 400 of the present invention, the lower body 320 of the rotating bundle 300 is inserted into the upper portion, and the diameter decreases toward the lower portion, that is, the outer circumferential surface of the lower body 320 . Corresponding to, the first insertion groove 414 having an inner circumferential surface formed to be slightly smaller than the outer circumferential surface of the lower body 320, and the coupling portion 330 of the rotating bundle 300 to the inner upper surface and screwed together It is configured to include a coupling groove (412).

That is, the first inserting and withdrawing bundle 400 of the present invention is inserted into the operating groove 122 of the piston 120 and then the above-described rotary bundle 300 , that is, the coupling part 330 of the rotary bundle 300 . ) is rotated and screwed into the coupling groove 412, the first insertion groove 414, that is, the inner circumferential surface is pressed outward by the outer circumferential surface of the lower body 320 of the rotating bundle 300, and the outer diameter is expanded As it comes into close contact with the operating groove 122 of the piston 120 , it is firmly coupled to the piston 120 .

Specifically, the first inserting and withdrawing bundle 400 of the present invention includes a first body 410 having a coupling groove 412 formed on the upper surface and inserted into the operating groove 122 of the piston 120, and the It is inserted into the working groove 122 of the piston 120 and is formed to protrude on the upper portion of the first body 410 , is formed along the circumference of the first body 410 , and the inner surface, that is, the inner peripheral surface, is rotated A plurality of first close contact division portions 420 formed to correspond to the outer surface of the lower body 320 of the bundle 300 , that is, the outer peripheral surface, and the first to protrude above the operating groove 122 of the piston 120 . The head division part 430 which is formed to protrude on the upper part of the close contact division part 420, and whose inner surface corresponds to the outer surface of the lower body 320 of the rotating bundle 300, and whose outer surface is formed as a flat surface. is comprised of

The first body 410 has a coupling groove 412 formed on its upper surface so that the coupling part 330 of the rotary bundle 300 described above can be screwed, and the coupling groove 412 is on the inner circumferential surface. A thread is formed, and is inserted into and seated in the operating groove 122 of the piston 120, while an outer diameter that is slightly smaller than the inner diameter of the operating groove 122 of the piston 120 is formed to stably the piston 120. It is seated inside the operating groove 122 of the.

The first cohesive divided portion 420 is formed in a cylindrical shape having the same outer diameter as the first body 410, but has a lower portion on the upper portion of the first body 410 and the first body 410 It is connected to be formed with an outer diameter smaller than the outer diameter of the inner surface, that is, as the rotating bundle 300 is screwed, the inner surface, that is, the inner peripheral surface is pressed outward, and thus the outer peripheral surface is the operating groove of the piston 120 (122) is in close contact with the inner circumferential surface so that the first insertion and withdrawal bundle 400 of the present invention can be pressurized and coupled to the piston 120 .

In more detail, the first close contact division part 420 is formed to protrude in the shape of an arc on the upper surface of the first body 410 , and has an outer diameter smaller than the outer diameter of the first body 410 . In other words, a plurality of lower connection parts 422 protruding so as to form a first insertion groove 414, a plurality of lower connection parts 422 protruding from the upper part of the lower connection part 422, and an outer surface of the piston 120's operating groove ( 122) is configured to include a plurality of first adhesion units 424 corresponding to the inner surface, that is, the inner peripheral surface.

At this time, the first adhesion unit 424 is formed to protrude on the upper part of the lower connection part 422 so that the upper part of the lower connection part 422 can be located inside the lower surface, and thus the lower connection part 422 and Together, a first insertion groove 414 is formed.

In addition, the outer diameter of the first adhesion unit 424 is formed to be the same as that of the first body 410 , that is, the outer diameter is formed to be slightly smaller than the inner diameter of the working groove 122 of the piston 120 , so that the rotating bundle 300 ), the upper part of the lower connection part 422 is bent outwardly according to the screw coupling, and the outer surface, that is, the outer peripheral surface, is in close contact with the inner peripheral surface of the operating groove 122 of the piston 120, so that the first insertion and withdrawal bundle of the present invention ( 400 to be firmly coupled to the piston 120 .

The head division part 430 is formed to protrude on the upper portion of the first adhesion unit 424 so that the inner surface thereof corresponds to the outer surface of the lower body 320 of the rotating bundle 300 , that is, the first The first insertion groove 414 is formed together with the lower connection part 422 and the first adhesion unit 424 of the close contact division 420, and the outer surface, that is, the outer surface is flat so that the overall outer surface shape is formed in a polygonal shape. When formed as a rotating bundle 300 is strongly screwed, so that it can be fixed by a lever so as not to rotate together.

At this time, since the head division part 430 is connected to the first close contact division part 420, a lever groove (not shown) formed in the lever so that the first close contact division part 420 can be smoothly extended outwardly. ), it will be obvious that it is formed to be smaller than the lever groove, and even if it is formed smaller than the lever groove, the rotation is limited because it is formed in a polygonal shape, and as the rotating bundle 300 is rotated and coupled, it is more by the lever It will be obvious that it is firmly fixed.

In more detail, the head division part 430 is formed to protrude in the shape of an arc on the upper surface of the first adhesion unit 424, and is formed to protrude at the same location as the lower connection part 422 and with the same diameter. A plurality of upper connection parts 432 forming an insertion groove 414, and protruding from the upper part of the upper connection part 432, the outer surface is formed as a flat surface, and the shape of the overall outer surface is formed in a polygonal shape It is configured to include a head unit (434).

As the upper connection part 432 is screwed to the first insertion and withdrawal bundle 400 , that is, the first body 410 , the rotating bundle 300 is connected to the head unit 434 by the first close contact division part 420 . ) is formed so as to be expanded more smoothly, which is extended together with the first adhesion unit 424 when the head unit 434 is formed to extend directly on the upper portion of the first adhesion unit 424. This is to more easily prevent the head unit 434 from being smoothly fixed and the first inserting and withdrawing bundle 400 being rotated together with the rotating bundle 300 .

That is, the first inserting and withdrawing bundle 400 of the present invention is inserted into the operating groove 122 of the piston 120 and then the rotating bundle 300 is rotated and screwed into the first cohesive divided portion 420 . That is, the first adhesion unit 424 is extended outwardly by the lower body 320 of the rotating bundle 300, and thus is in close contact with the operation groove 122 and is firmly coupled to the piston 120, , so that the piston 120 can be drawn out and inserted by the operation of the cylinder part 200 thereafter.

In addition, a plurality of vertical incision grooves are formed in the first cohesive dividing part 420 and the head dividing part 430 of the first inserting and withdrawing bundle 400 of the present invention to form the first cohesive dividing part 420 . And by allowing the head dividing unit 430 to contract and expand by a predetermined angle in the inner and outer directions, the rotating bundle 300 is the first coherent dividing unit 420 and the head dividing unit 430. When the inner circumferential surface is pressurized, the first close contact division portion 420 and the head division portion 430 are extended to the outside, thereby having an effect of firmly press-coupled with the piston 120 .

The second insert and pull-out bundle 500, which is a main component for achieving the present invention, is

A second insertion groove 512 into which the first inserting and withdrawing bundle 400 is inserted and coupled to the upper portion is formed, and the first inserting and pulling-out extending outward as the rotating bundle 300 is screwed together. The upper part of the bundle 400 extends outwardly by the upper part, and when the size of the operating groove 122 of the piston 120 is larger than the first insertion and withdrawal bundle 400 , the first insertion and withdrawal bundle It is coupled to the lower portion of the 400 to enable insertion and withdrawal of the piston 120 .

Specifically, the second insertion and withdrawal bundle 500 of the present invention is inserted into the operating groove 122 of the piston 120, the second body 510 is formed through the second insertion groove 512, and the The second body 510 is formed to protrude on the upper part, is formed along the circumference of the second body 510, and the inner surface, that is, the inner peripheral surface, is the outer surface, that is, the outer peripheral surface of the first insertion and withdrawal bundle 400, and It is configured to include a second close contact dividing portion 520 forming a second insertion groove 512 to correspond to it.

A through screw hole made of a screw thread is formed on one side of a part of the second body 510 and tightened through a screw from the outside, so that the inner surface of the second body 510 and the outer surface of the first body 410 are It is configured to be firmly coupled, and the head of the screw can be used by selecting any one of a straight groove, a cross groove, a pentagonal and a hexagonal shape so that it can be tightened and loosened with a screwdriver, and the screw is used in the screw hole of the second body 510 . When coupled to, the screw head is inserted deeper than the outer surface of the second body 510 so that the second body 510 and the piston 120 are completely coupled.

The second body 510 has a size of the working groove 122 of the piston 120, that is, when the inner diameter is larger than the outer diameter of the first inserting and withdrawing bundle 400, the first inserting and withdrawing bundle 400 is The first body 410 and the second body 510 are combined so that the first body 410 and the second body 510 are matched by combining the second insertion and withdrawal bundle 500 , but by tightening the screw in the second body 510 through the first body After making the 410 and tightly coupled to the first insertion and withdrawal bundle 400 and the second insertion and withdrawal bundle 500, the combined set is seated on the upper surface of the working groove 122 of the piston 120, is installed

At this time, the lower portion of the first insertion and withdrawal bundle 400 is inserted into the second insertion groove 512 , and the first body 410 and the first adhesive division 420 described above are inserted into the second insertion groove Corresponding to the lower part that is inserted into the groove 512, and accordingly, the rotating bundle 300 is rotated and screwed into the coupling groove 412, so that the first cohesive division 420 is expanded and the second cohesive divided part Expand the top of 520 .

In addition, the second body 510 has an outer diameter that is slightly smaller than the inner diameter of the operating groove 122 of the piston 120 like the first body 410 , so that the operating groove 122 of the piston 120 is stably formed. ) and settled in

The second cohesive dividing portion 520 is formed in a cylindrical shape having the same outer diameter as the second body 510, but has a lower portion on the upper portion of the second body 510. Connected to have an outer diameter smaller than the outer diameter of ), so that the outer circumferential surface is in close contact with the inner circumferential surface of the operating groove 122 of the piston 120 so that the second insertion and withdrawal bundle 500 of the present invention can be coupled to the piston 120. do.

In more detail, the second close contact division part 520 is formed to protrude in the shape of an arc on the upper surface of the second body 510, and an outer diameter smaller than the outer diameter of the second body 510 is formed. In other words, a plurality of connecting portions 522 protruding so as to form a second insertion groove 512 and protrudingly formed on the upper portion of the connecting portion 522, the outer surface of which is in the operating groove 122 of the piston 120 It is configured to include a plurality of second adhesion units 524 corresponding to the side surface, that is, the inner circumferential surface.

At this time, the second adhesion unit 524 is formed to protrude on the upper portion of the connecting portion 522 so that the upper portion of the connecting portion 522 can be located inside the lower surface, and thus the second adhesion unit 524 together with the connecting portion 522 An insertion groove 512 is formed.

In addition, the outer diameter of the second adhesion unit 524 is formed to be the same as that of the second body 510, that is, the outer diameter is formed to be slightly smaller than the inner diameter of the operating groove 122 of the piston 120, so that the rotating bundle 300 ), the upper portion of the connecting portion 522 is bent outwardly by the first tight dividing portion 420 according to the screw coupling of the outer surface, that is, the outer peripheral surface of the piston 120 is in close contact with the inner peripheral surface of the working groove 122 of the piston 120 . The second insertion and withdrawal bundle 500 of the present invention is firmly press-coupled with the piston 120 .

In addition, the inner circumferential surface of the second cohesive divided part 520 of the present invention is closely coupled to the outer circumferential surface of the first cohesive divided part 420, and the second cohesive divided part 520 and the first cohesive divided part ( 420) have the same vertical height, and the second close contact division 520 forms a plurality of vertical cutout grooves to contract and expand by a predetermined angle in the inner and outer directions, so that the first close contact dividing portion ( When the 420 is extended to the outside, it is expanded to the outside by the air pressure of the first close contact division 420 and has an effect of firmly press-coupled with the piston 120 .

That is, in the second insertion and withdrawal bundle 500 of the present invention, the operating groove 122 of the piston 120 is larger than the outer diameter of the first insertion and withdrawal assembly 400 described above, that is, the first insertion and withdrawal assembly When the first coherent divided portion 420 of 400 is larger than the outer diameter expanded by the rotating bundle 300, it is inserted into the operating groove 122 of the piston 120 and then the first insertion and withdrawal bundle 400. As coupled to the lower portion of the rotating bundle 300 is rotated and screwed, the second cohesive division 520, that is, the second cohesive unit 524, is formed with the first cohesive division 420, that is, the first cohesive unit. It is extended in the outward direction by 424 , and thus is in close contact with the operation groove 122 and is firmly coupled to the piston 120 , and then withdraws and inserts the piston 120 by the operation of the cylinder unit 200 . make it possible

On the other hand, when the piston 120 is inserted after the maintenance of the brake 100 is finished, the jig for easy extraction and insertion of the piston for the brake of the present invention, the first and second insertion and withdrawal bundles 400 and 500 It may be used, but for smoother insertion, as shown in FIGS. 18 to 19 , it is preferable to use a separate insertion bundle 600 , which is the first and second insertions when the piston 120 is inserted. And at the same time preventing damage to the working groove 122 of the piston 120 and the first and second insertion and withdrawal bundles 400 and 500 by the pull-out bundles 400 and 500, and a smoother piston 120 This is to ensure that the insertion of

Therefore, when the piston 120 is inserted, any one of the first insertion and withdrawal bundle 400, the first insertion and withdrawal assembly 400, and the small insertion bundle and the large insertion bundle of the insertion assembly 600 is selected and used it is possible to do

At this time, the insert bundle 600 may be made in a small or large size depending on the size of the piston 120 operating groove 122, so it is possible to select and use any one of the small insert bundle and the large insert bundle, and the upper A pinhole (not shown) formed in the upper portion of the rotating bundle 300 , that is, in the upper body 310 is formed, and is stably and firmly coupled to the rod 210 and the coupling pin of the cylinder unit 200 .

Hereinafter, a piston extraction method for a brake of the present invention and a piston extraction method using a jig for easy insertion will be described.

First, the brake 100 is separated from the cylinder and seated on the upper part of the lower base plate, and the brake 100 is fixed to the lower base plate by using a plurality of toggle clamps.

After confirming the inner diameter of the operating groove 122 of the piston 120 to be withdrawn, the first insertion and withdrawal bundle 400 or the second insertion and extraction bundle 500 is inserted into the operating groove 122 of the piston 120. Insert it into and set it in place. Hereinafter, a withdrawal method for applying the second insert and pull-out bundle 500 will be described, and when only the first insert and pull-out bundle 400 is used, proceed in the order excluding the second insert and pull-out bundle 500 Therefore, a detailed description will be omitted.

Thereafter, the lower portion of the first insertion and withdrawal bundle 400 is inserted and seated in the second insertion groove 512 of the second insertion and withdrawal bundle 500, and the lower portion of the rotating assembly 300 is inserted and seated in the first insertion and It is inserted into the first insertion groove 414 of the withdrawal bundle 400 .

Thereafter, a lever having a lever groove corresponding to the head of the upper body 310 and the head division 430 of the first inserting and withdrawing bundle 400 and the rotating bundle 300 is inserted and pulled out. Installed on the head of the head division part 430 of the bundle 400 and the upper body 310 of the rotating bundle 300, and rotating the lever installed on the head of the upper body 310 of the rotating bundle 300, the The rotating bundle 300 is screwed to the first inserting and withdrawing assembly 400 .

At this time, the rotation of the rotating bundle 300 is performed until the outer circumferential surface of the second close contact division 520 of the second inserting and withdrawing bundle 500 strongly adheres to the inner circumferential surface of the operating groove 122 of the piston 120 . It is preferably done, and is not particularly limited.

Thereafter, the cylinder part 200 is positioned on the upper part of the piston 120 to be drawn out, and the rod 210 is lowered to the lower part so that the rod 210 is a coupling groove formed in the upper body 310 of the rotating bundle 300 . and to couple the rod 210 and the rotating bundle 300 using a coupling pin.

Thereafter, by operating the cylinder unit 200, the rod 210 is raised to the upper portion to withdraw the piston 120, and the interior of the cylinder is maintained. After the maintenance is completed, the piston 120 is inserted by performing the extraction method described above in the reverse order.

On the other hand, the piston 120 can be inserted using the insertion bundle 600 without using the first and second insertion and withdrawal bundles 400 and 500, and when the insertion bundle 600 is used, After coupling the insertion bundle 600 to the rod 210 of the cylinder unit 200, it is seated in the cylinder groove 110 of the cylinder, and then the cylinder unit 200 is positioned above the piston 120 to be inserted. By operating the cylinder unit 200 to lower the insertion bundle 600, the lower part of the insertion bundle 600 is inserted into the operating groove 122 of the piston 120 and the piston 120 is lowered at the same time. to insert the piston 120 into the cylinder groove 110 by pressing with

As a result, the jig for easy extraction and insertion of the piston for the brake including the yaw brake of the wind power generator of the present invention is the first insertion and withdrawal assembly 400 or the second insertion and extraction assembly 500 and the rotating assembly 300. Since it is firmly coupled with the piston 120 through The efficiency of work can be improved, and the first insertion and withdrawal bundle 400 or the second insertion and withdrawal bundle 500 is selected and used according to the size of the operating groove 122 of the piston 120, so that it is more efficiently used A workable effect can be obtained.

The above has been described with reference to a preferred embodiment of the present invention, and is not limited to the above embodiment, and a person of ordinary skill in the art through the above embodiment does not deviate from the gist of the present invention It can be implemented with various changes in

100: brake 110: cylinder groove
120: piston 122: working groove
200: cylinder part 210: rod
300: rotating bundle 310: upper body
320: lower body 330: coupling part
400: first insertion and withdrawal bundle 410: first body
412: coupling groove 414: first insertion groove
420: first close-fitting division 422: lower connection part
424: first adhesion unit 430: head division
432: upper connection 434: head unit
500: second insertion and withdrawal bundle 510: second body
512: second insertion groove 520: second adhesive division
522: connection part 524: second adhesion unit
600: insert bundle

Claims (9)

The piston of the brake 100 in which at least one cylinder groove 110 is formed, a piston 120 is installed in the cylinder groove 110 , and an operation groove 122 is formed in an upper portion of the piston 120 . In the jig for withdrawing and inserting (120),
The cylinder part 200 is installed spaced apart from the upper part of the brake 100, and is positioned and installed on the upper part of the piston 120 of the brake 100; and
The upper body 310 is coupled to the lower portion of the rod 210 of the cylinder unit 200, and a lower body 320 whose diameter becomes smaller toward the lower portion of the upper body 310 is formed, and the lower body 320 is lowered. Rotating bundle 300 comprising a coupling portion 330 having a screw thread formed on the outer periphery of the surface; and
The lower body 320 of the rotating bundle 300 is screwed to the inner lower surface, and the first insertion groove 414, the diameter of which decreases toward the bottom, and the coupling part of the rotating bundle 300 on the inner upper surface ( A coupling groove 412 to which 330 is screwed is formed, but as the rotating bundle 300 is screwed, the upper portion expands outward, and the upper outer circumferential surface extended to the operation groove 122 of the piston 120 is in close contact. A first insert and pull-out bundle 400 to be included;
The first insertion and withdrawal bundle 400 is a coupling groove 412 on the upper surface: a first body 410 inserted into the operation groove 122 of the piston 120; and the first body 410 A plurality of first cohesive divisions ( 420); and a head portion protruding from the upper portion of the first close contact division portion 420, the inner surface of which is formed to correspond to the outer surface of the lower body 320 of the rotating bundle 300, and the outer surface of which is formed as a flat surface. The jig for easy extraction and insertion of the piston for brake, characterized in that it comprises;
delete delete According to claim 1,
The first cohesive dividing part 420 is
A plurality of lower connection parts 422 protruding in the shape of an arc on the upper surface of the first body 410 and protruding to form an outer diameter smaller than the outer diameter of the first body 410; and
A plurality of first adhesion units (424) protruding from the upper portion of the lower connection part (422) and having an outer surface corresponding to the inner surface of the operating groove (122) of the piston (120); characterized in that it comprises a Jig for easy extraction and insertion of piston for brake.
According to claim 1,
The head division part 430 is
A plurality of upper connection parts 432 protruding in the shape of an arc on the upper surface of the first adhesion unit 424 and protruding in the same position as the lower connection part 422 and with the same diameter; and
A jig for easy pulling out and inserting of a piston for brake, characterized in that it comprises;
According to claim 1,
The jig for easy extraction and insertion of the piston for the brake is
A second insertion groove 512 into which the first inserting and withdrawing bundle 400 is inserted and coupled to the upper portion is formed, and as the rotating bundle 300 is screwed together, the first inserting and withdrawing bundle 400 is formed. A jig for easy pulling-out and insertion of a piston for brake, characterized in that it comprises;
7. The method of claim 6,
The second insertion and withdrawal bundle 500 is
A second body 510 which is inserted into the operating groove 122 of the piston 120 and is formed through the second insertion groove 512; and
The second body 510 is formed to protrude from the upper portion, is formed along the circumference of the second body 510, and the inner surface is formed to correspond to the outer surface of the first insert and pull-out bundle (400) A jig for easy extraction and insertion of a piston for a brake, characterized in that it includes;
8. The method of claim 7,
The second cohesive dividing part 520 is
A plurality of connecting parts 522 protruding from the upper surface of the second body 510 in an arc shape, and protruding to form an outer diameter smaller than the outer diameter of the second body 510; and
A brake characterized in that it comprises a; a plurality of second adhesion units (524) protruding from the upper portion of the connection portion (522), the outer surface of which corresponds to the inner surface of the operating groove (122) of the piston (120) Jig for easy piston withdrawal and insertion.
According to claim 1,
When the piston 120 is inserted into the brake 100,
The first insertion and withdrawal bundle 400, the first insertion and withdrawal bundle 400, the insertion bundle 600, characterized in that it is configured to be able to select and use any one of the small insertion bundle and the large insertion bundle Jig for easy extraction and insertion of piston for brake.

Images