KR20020036469A - Apparatus for Bush installment/dismentlement - Google Patents

Abstract

The present invention relates to a bush mounting and removal mechanism to facilitate the installation and removal of the bush, the bush mounting mechanism according to the present invention is removable to the structure, such as the connection assembly 20, the bush 10 is mounted. The support clamp 30 coupled to each other, the binding pin 32 that binds the support clamp 30 and the connection assembly 20, and a screw to enable a linear reciprocating movement through one end of the support clamp 30. Compression bolt 34 is coupled to, and is attached to the tip of the compression bolt 34 is made of a pressing piece 36 in close contact with the bush (10).

In addition, the bush removal mechanism according to the present invention is to bind the support clamp 30 and the support clamp 30 and the connection assembly detachably coupled to a structure such as the connection assembly 20 on which the bush 10 is mounted. A binding pin 32, a screw rod 35 that is simply coupled to pass through one end of the support clamp 30 so as to reciprocate linearly, and a screw rod 35 at one end of the screw rod 35; The screw 37 is coupled to the screw rod 35 from the other end of the screw rod 35 and the pressing piece 36 'is applied to the inner end of the bush (10).

Description

Apparatus for Bush installment / dismentlement

The present invention relates to a bush mounting and removal mechanism, and more particularly to a bush mounting and removal mechanism to facilitate the installation and removal of the bush.

In general, a rotational connection of a mechanical structure, such as a bearing, uses a bush to prevent the structure from being worn by friction, and the bush is fitted in a connection assembly or the like.

When the bush is removed from the bushing coupling assembly for repair of the mechanical structure, or when the removed bush is remounted, a so-called hitting and detaching method using a jig and a hammer, or a press detaching method is used.

Here, the hitting detachable method is strong to the bush 10 by using a specific jig 12 and the hammer (not shown) to hit the jig 10 to fit the structure of the bush 10, as shown in FIG. It is to be removed from the connection assembly 20 by applying a pressure, even when the removed bush 10 is mounted again in a manner of fitting the bush 10 in the same way in the opposite direction when removing.

According to such a hitting and detaching method, since the parts such as the connection assembly 20 connected to the bush 10 do not need to be disassembled from the machine structure in order to attach and detach the bush 10, the work efficiency is improved at the work site. Because of the nature of the hammer work, the force applied to the bush 10 is instantaneous and inconsistent, causing the bush 10 to break or not to maintain a stable mounting state.

The press detachment method is a method of detaching the connecting assembly 20 equipped with the bush 10 from the mechanical structure and placing it on a press machine (not shown) to pressurize the bush 10 through the press machine. According to the even pressure is applied to the bush 10, the mounting state of the bush 10 is maintained relatively stable.

However, according to the press detachment method, due to the excessive force applied to the bush 10 due to the nature of the press machine, there is a risk of damage to the bush 10, the connecting assembly (10) mounted with the bush 10 for use of the press machine ( 20) there is a problem that the work is cumbersome because it must be separated from the machine structure and transported to the place where the press can be used.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bush mounting and detachment mechanism that can increase the efficiency and stability of the bush mounting and removal work.

1 is a schematic cross-sectional view showing a bush mounting method according to the prior art.

Figure 2 is a perspective view showing the structure of a bush mounting mechanism according to an embodiment of the present invention.

3 is a state diagram showing a bush mounting method using a bush mounting mechanism according to an embodiment of the present invention.

Figure 4 is a perspective view showing the structure of the bush removing mechanism according to an embodiment of the present invention.

5 is a state diagram showing a bush detachment method using a bush detachment mechanism according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: bush 12: jig

20: connecting assembly 20a: assembly hole

30: support clamp 30a: screw hole

30b: pinhole 32: binding pin

321: pin portion 322: locking portion

33: chain 34: compression bolt

35: screw rod 36: pressing piece

36 ': compression piece 37: nut

38: guide ring

A bush mounting mechanism provided to achieve the above object includes a support clamp detachably coupled to a structure such as a bushing connection assembly, a binding pin for binding the support clamp and the connection assembly, and one side end of the support clamp. It comprises a pressing bolt which is screwed so as to be linearly reciprocating to penetrate through, and a pressing piece attached to the tip of the pressing bolt and in close contact with the bush.

In addition, the bush removal mechanism includes a support clamp detachably coupled to the shaft of the bush-mounted mechanical structure, a binding pin for engaging the shaft of the support clamp and the mechanical structure, and a linear reciprocating movement through one end of the support clamp. A screw rod that is simply coupled, a nut screwed to the screw rod at one end of the screw rod, and a pressing piece attached to the screw rod at the other end of the screw rod and caught on the inner end of the bush.

Here, the binding pin and the support clamp of the bush mounting mechanism and the bush removal mechanism are connected to each other by a connecting means such as a chain.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 2 to 5.

First, the bush mounting mechanism according to the embodiment of the present invention, as shown in Figure 2 and the support clamp 30 is detachably coupled to the connection assembly 20 (see Fig. 3) to be mounted with the bush 10, and A pair of binding pins 32 for coupling the support clamp 30 and the connection assembly, a compression bolt 34 screwed in a linear reciprocating manner through one end of the support clamp 30, and the compression bolt And a pressing piece 36 attached to the tip of the head 34 and in close contact with the bush 10.

Here, the support clamp 30 is a member of the '' 'shape, a screw hole (30a) through which the pressing bolt 34 is formed in the center portion is formed, the pinhole through which the binding pin 32 is penetrated at both ends 30b is formed. (See FIG. 3).

The binding pin 32 is connected to the support clamp 30 by a chain 33 or the like, and is provided at the tip of the pin portion 321 and the pin portion 321 through the support clamp 30 to insert the pin portion 321. It consists of a locking portion 322 to limit the degree.

In addition, the pressing piece 36 has a diameter exceeding the inner diameter of the bush 10, and one side of the pressing piece 36 is equipped with a guide ring 38 inserted into the bush 10. The pressing piece 36 and the guide ring 38 are mounted to the pressing bolt 34 to be freely rotatable.

A method of mounting the bush 10 to the connection assembly 20 using the bush mounting mechanism according to the present embodiment configured as described above is as follows.

First, the pin 321 of the binding pin 32 is inserted into the connection assembly 20 assembly hole 20a through the pin hole 30b of the clamp 30 to bind the support clamp 30 to the connection assembly 20. .

Then, the bush 10 is inserted into the guide ring 38, and the pressing bolt 34 is turned in the tightening direction by using a tool such as a socket wrench (not shown) to press the bush 10 with the pressing piece 36. It is gradually pushed into the connection assembly 20.

Here, since the pressing piece 36 is mounted on the pressing bolt 34 so as to be freely rotatable as described above, only the pressure according to the linear movement of the pressing bolt 34 is applied to the bush.

Next, the bush removal mechanism according to the embodiment of the present invention, as shown in Figure 4, the binding pin 32 for binding the support clamp 30, the support clamp 30 and the connection assembly 20, and the A screw rod 35 which is simply coupled to one side end of the support clamp 30 to be linearly reciprocated, and a nut 37 screwed to the screw rod 35 at one end of the screw rod 35; , The pressing piece 36 ′ attached to the screw rod 35 at the other end of the screw rod 37 and caught by the inner end of the bush 10.

The pressing piece 36 ′ has a structure whose diameter exceeds the inner diameter of the bush 10 and is smaller than the inner diameter of the connection assembly 20.

The support clamp 30 and the binding pin 32 are configured in the same manner as the bush mounting mechanism described above, and screw rods 35 mounted through the support clamp 30 through the screw holes 30a of the support clamp 30. Silver is formed so small that the diameter does not interfere with the threads formed on the inner surface of the screw hole (30a).

A guide ring 38 inserted into the bush 10 is attached to the distal end of the screw rod 35 between the pressing pieces 36 '.

When removing the bush 10 from the connecting assembly 20 by using the bush removing mechanism according to the present embodiment as described above, as shown in Figure 5, the binding pin 32 is used as in the case of using the bush mounting mechanism. By binding the support clamp 30 to the connection assembly 20, the threaded rod 35 is passed through the bush 10 and the support clamp 30, the guide ring 38 is inserted into the bush 10, The pressing piece 36 'is caught by the tip of the bush 10.

Subsequently, in a state in which the nut 37 is coupled to the distal end of the threaded rod 35 passing through the support clamp 30, the nut 37 is turned in the tightening direction by using a tool such as a spanner (not shown). By allowing the 35 to be relatively pulled, the bush 10 is pulled out by the pressing piece 36 'at the tip of the screw rod 35.

Therefore, according to such a bush 10 mounting and removal mechanism, the rotational operation force of the operator is converted into a linear movement force through the pressing bolt 34 or the screw rod 35 and applied to the bush 10 so that the bush 10 The mounting / removing work can be performed precisely.

As described above, according to the bush mounting and detachment mechanism according to the present invention, by simply disassembling only the bushing coupling assembly at the site where the mechanical structure is installed, the bush can be easily mounted and removed, and the bush is broken. This can be prevented.

Claims (4)

A support clamp detachably coupled to a structure such as a connection assembly with a bush, A binding pin for binding the support clamp and the connection assembly; Compression bolt screwed to the linear reciprocating movement through one side end of the support clamp, Compression piece attached to the tip of the compression bolt and in close contact with the bush Bush mounting mechanism comprising a. The method of claim 1, The binding pin and the support clamp is a bush mounting mechanism, characterized in that connected to each other by a connection means such as a chain. A support clamp detachably coupled to the shaft of the bush-mounted mechanical structure, A binding pin for engaging the shaft of the support clamp and the machine structure; A screw rod that is simply coupled to pass through one end of the support clamp to be linearly reciprocated; A nut screwed to the screw rod at one end of the screw rod, Pressing piece which is attached to the screw rod at the other end of the screw rod and caught on the inner end of the bush Bush removal mechanism comprising a. The method of claim 3, The binding pin and the support clamp is a bush removal mechanism, characterized in that connected to each other by a connecting means such as a chain.