KR20140014599A

KR20140014599A - Apparatus for withdrawing bearing

Info

Publication number: KR20140014599A
Application number: KR1020120081017A
Authority: KR
Inventors: 조태동
Original assignee: 계양전기 주식회사
Priority date: 2012-07-25
Filing date: 2012-07-25
Publication date: 2014-02-06

Abstract

The present invention relates to a bearing takeout device that maintains the concentricity of the central axis by maintaining a fixed interval and the interval of the pair of hook members for taking out the bearing at equal intervals.
According to the present invention, a pair of hook members 20 and 21 and a support 30 slidingly coupled to the hook members 20 and 21 and a support 30 are coupled through the support 30. In the bearing take-out device consisting of a rotating member 40 to be raised,
Located at the front of the support 30, the interval between the hook members (20, 21) of a pair of screws, coupled to the connecting pieces (20a, 21a) formed on the hook members (20, 21) at equal intervals The adjusting member 110 is moved to be maintained.

Description

Bearing take-out device {Apparatus for Withdrawing Bearing}

The present invention relates to a take-out device that can take out the bearings provided in various rotary devices, and more particularly to maintain the concentricity of the central axis by maintaining the fixed and the interval of the pair of hook members for taking out the bearing at equal intervals will be.

In general, a rotating device such as a motor or a drill chuck used in a power tool is provided with a bearing along with a rotating shaft.

Such a bearing should be withdrawn when it is used in the process of use or when it is damaged and needs to be replaced. As a device for extracting a bearing as described above, a bearing extractor 1 as shown in FIGS. 1 and 2A is conventionally used. It was prepared.

The bearing extractor 1 penetrates a pair of hook members 20 and 21 to be fitted to both sides of the bearing 10 and transversely in the upper direction of the hook members 20 and 21. And slidably coupled to the support 30, the rotating member 40 screwed through the center of the support 30, and the connecting piece 41 formed on the upper portion of the rotating member 40 in the transverse direction. Penetration, the structure is composed of the lever 50 is coupled.

The bearing 10 shows a structure coupled to the rotary shaft 61 of the drill chuck 60.

In addition, the lower end of the rotating member 40 has a structure in which the alignment piece 42 is inserted into the insertion groove formed in the end of the rotary shaft 61 of the drill chuck 60 to be aligned.

The end of the alignment piece 41 has a pointed structure.

Conventional bearing take-out device 1 having such a structure is to insert a pair of hook members 20, 21 to the bearing 10 to be drawn out, when the bearing 10 is fitted to the lower end of the rotating member 40 Insert the alignment piece 42 formed in the end of the rotary shaft 61 of the drill chuck 60, and then slide the hook members 20, 21 provided on both sides in the center direction from the support 30 to the bearing 10 It is fitted inward from the side.

In this state, to rotate the rotating member 40 located in the center, by holding the lever 50 coupled to the upper portion of the rotating member 40 and rotates in one direction, the rotating member 40 is rotated, Then, as shown in Figure 2b, the support member 30 screwed with the rotating member 40 is raised along the longitudinal direction of the rotating member 40, the hook member 20, 21 also moves upwards at the same time Done.

Accordingly, the bearing 10 hanging on the hook members 20 and 21 is easily drawn out.

By the way, in the conventional bearing take-out apparatus 1, since the hook members 20 and 21 are slidably coupled to the support 30, the bearing members 20 and 21 are moved while moving the respective hook members 20 and 21 from the support 30. Since it is inserted into the (10), the hook members 20 and 21 fitted to the bearing 10 may not be maintained in a fixed state in the support 30, so that a phenomenon may occur in the opposite direction.

In addition, in the conventional bearing take-out apparatus 1, the gap between the hook members 20 and 21 positioned at both sides from the rotating member 40 should be maintained at equal intervals so that both sides of the bearing 10 at the time of withdrawing the bearing 10 may be maintained. Although uniform force may be applied to smoothly pull out the bearing 10, since the hook members 20 and 21 move separately from each other on the support 30, it is not easy to maintain the equal interval, Accordingly, there is a problem in that the drawing operation of the bearing 10 is difficult because the operation to draw out with a uniform force is not made properly.

In addition, there is a bearing takeout device as disclosed in the Republic of Korea Utility Model Registration No. 20-402171 (hereinafter referred to as "Patent Document 1"), but it is inserted into the bearing and pulled upwards, so a lot of force is required when pulling out If the pulling force is insufficient, the bearing may not be easily pulled out.

Republic of Korea Utility Model Registration No. 20-402171 (Notification Date: November 25, 2005)

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to keep the pair of hook members to be easily held at equal intervals from the rotating member to be caught on both sides of the bearing to withdraw the bearing To provide a bearing taking out device to be made smoothly when the bearing is taken out.

The solution means of the present invention for achieving the above object, the bearing pulled out consisting of a pair of hook member, the support for sliding the hook member and the rotating member is coupled through the support so that the support is raised In the device,

Located in the front of the support, the adjusting member is provided with a screw, coupled to the connecting piece formed on the hook member to move while maintaining the interval of the pair of hook members are formed at equal intervals.

In addition, the center of the adjustment member is formed with a rotating wheel to facilitate the rotation of the adjustment member.

In addition, the adjustment member is formed in the direction of the thread formed on both sides with respect to the rotation wheel is different.

In addition, the center of the support is a structure in which a support piece for inserting the rotary wheel is formed.

As described above, the present invention is a bearing takeout device for easily withdrawing a bearing coupled to a motor and a drill chuck provided in a power tool, and a pair of hook members serving as a bearing to the bearing are equally spaced laterally through an adjustment member. By being moved while maintaining, it is possible to take out the bearings with an equal force when the bearings are taken out by the lifting action of the hook member by the rotation of the rotating member, and thus the bearings can be easily taken out.

1 is a perspective view of a conventional bearing extractor.
Figure 2a is a view showing a state in which the hook member constituting the conventional bearing take-off device close to the bearing.
Figure 2b is a view showing a state that the hook member is raised by rotating the rotating member in the state of Figure 2a is the bearing is drawn out.
3 is a perspective view of a bearing extractor according to an embodiment of the present invention.
Figure 4a is a view of the state before the hook member of the bearing take-out apparatus according to an embodiment of the present invention close to the bearing.
Figure 4b is a view showing the hook member close to the bearing by the adjustment member in the state of Figure 4a.
Figure 4c is a view showing a state that the bearing is pulled out as the hook member is raised by rotating the rotating member in the state of Figure 4b.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The same components as in the prior art will be described with the same reference numerals and detailed description thereof will be omitted, and new components will be described in detail with the new reference numerals.

3 is a perspective view of a bearing extractor according to an embodiment of the present invention. As shown in the figure, the bearing takeout device 100 according to an embodiment of the present invention, while being located in front of the support 30, the interval between the pair of hook members 20, 21 at equal intervals Adjusting member 110 to move so as to have a screw, coupled to the connecting pieces (20a) (21a) formed on the hook member (20) (21).

The center of the control member 110 has a structure in which a rotating wheel 111 is formed to facilitate the rotation of the control member (110).

In addition, the adjustment member 110 is formed in the direction of the thread formed on both sides with respect to the rotation wheel 111 is different from each other. In other words, the right hand thread 112 is formed on the left side of the rotary wheel 111 and the left hand thread 113 is formed on the right side of the rotary wheel 111.

In addition, the center of the support 30 has a structure in which a support piece 31 for inserting the rotary wheel 111 is formed.

In the embodiment of the present invention, as shown in Figure 3, the support piece 31 is formed in a pair to protrude, spaced apart from each other so that the rotary wheel 111 between the pair of support pieces 31 It is to be maintained so that the position is retained by the support piece 31 during rotation.

Bearing extracting apparatus 100 according to an embodiment of the present invention having such a structure, as shown in Figure 4a and 4b, the connecting piece 41 formed in the lower end of the rotating member 40 drill chuck 60 When rotating the rotary wheel 111 located in the center of the adjusting member 110 in a state in contact with the upper end of the rotating shaft 61 of the, the forming direction of the thread of the left and right portions of the rotating wheel 111 is formed differently The pair of hook members 20 and 21 slide along the longitudinal direction of the support 30 in the inward direction and simultaneously move the adjusting member 110 to the bearing 10.

In this state, by holding the lever 50 and turning in one direction, the rotating member 40 is rotated in place, and the support 30 screwed with the rotating member 40 is raised along the longitudinal direction of the rotating member 40. The hook member 20 and 21 coupled with the support 30 are also simultaneously raised while pulling out the bearing 10.

Here, the present invention, because the hook member 20, 21 through both the adjustment member 110 is close to the bearing 10 while maintaining the same interval automatically automatically at the same time, unlike the conventional hook member 20 accurately The center between the 21 and the rotating member 40 and the bearing 10 is aligned, and accordingly the lifting operation of the hook members 20 and 21 according to the rotation of the rotating member 40 can be performed smoothly.

In addition, since the hook members 20 and 21 are fastened to the bearing 10 and then screwed by the adjusting member 110, the hook members 20 and 21 can be maintained in the moved state, and accordingly, the hook members 20 and 21 are connected. ) Can be surely held without deviating outward of the bearing (10).

In addition, the support piece 31 is formed in the center of the front surface of the support 30, the rotation wheel 111 of the adjustment member 110 is inserted between the support piece 31, so that the rotation wheel 111 During the rotation operation, the support piece 31 can be stably rotated while being supported.

In the embodiment of the present invention has been described with respect to the extraction of the bearing, it is not limited to this, it can also be applied to the place to take out other parts as appropriate.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. It will be possible. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Bearing take out device
10: bearing
20,21: hook member
20a, 20b: Connecting piece
30: Support
31: support piece
40: rotating member
41: connecting piece
50: lever
60: drill chuck
61:
100: bearing takeout device
110: adjusting member
111: rotating wheel
112: right hand thread
113: left hand thread

Claims

A pair of hook members 20 and 21,
And the support member 30 to which the hook member 20, 21 is slidingly coupled,
In the bearing take-out device consisting of a rotating member 40 to penetrate through the support 30 to raise the support 30,
Located at the front of the support 30, the interval between the hook members (20, 21) of a pair of screws, coupled to the connecting pieces (20a, 21a) formed on the hook members (20, 21) at equal intervals Bearing extractor, characterized in that the adjustment member 110 is provided to move while maintaining.

The method according to claim 1,
Bearing take-out apparatus, characterized in that the rotating wheel 111 is formed in the center of the adjustment member 110 to facilitate the rotation of the adjustment member (110).

The method according to claim 2,
The adjusting member 110 is a bearing extracting device, characterized in that the direction of the thread formed on both sides of the rotary wheel 111 is formed differently.

The method according to claim 2,
Bearing extractor, characterized in that the support piece 31 is formed in the center of the support 30 to insert the rotary wheel (111).