KR102090121B1 - Hinge pin fixing member for construction equipment and farming machine - Google Patents

Abstract

The present invention relates to a boom and a working cylinder and a connecting member included in a loader for construction equipment and agricultural machinery, and a hinge pin fixing member for construction equipment and agricultural machinery that is fastened to a hinge pin that connects the construction and agricultural working members to each other. , More specifically, it constitutes a body plate with a through hole formed in the center, and bends the rim of the body plate to create a first insertion space on the rim of one side facing the outer surface of the boom and connecting member and the work member for construction and farming. While forming the washer forming the second insertion space in the center of one side of the opposite side, the head portion is inserted into the second insertion space and in close contact with the body plate, protruding from the head portion through the through-hole while the female screw of the hinge pin A fixing bolt made of a male screw part fastened to the part, and a part is inserted into the first insertion space, and the other part protrudes from the first insertion space, and the boom and the connecting member and the ball It relates to a hinge pin fixing member for construction equipment and agricultural machinery, characterized in that it comprises an O-ring that is in close contact with the outer surface of the work member for farming and farming.

Description

Hinge pin fixing member for construction equipment and farming machine

The present invention relates to a hinge pin fixing member for construction equipment and agricultural machinery, and in particular to a boom and a working cylinder and a connecting member included in a loader for construction equipment and agricultural machinery, and a hinge pin that rotates a work member for construction and agricultural use. , It relates to a hinge pin fixing member for construction equipment and agricultural machinery that is fastened differently from the prior art.

In general, construction equipment such as a tractor and a traveling body for agricultural machinery are equipped with loaders for construction equipment and agricultural machinery, including construction and agricultural work members such as buckets in the front, excavating soil, rock excavating work, concrete building crushing work, etc. The same was put into various construction work.

So, for easy construction work, the loader for construction equipment and agricultural machinery including the boom and the working cylinder and the connecting member, and the working member for construction and farming (2a) was important.

Here, the boom and the operating cylinder and the connecting member, and the construction and agricultural work member (2a) is a hinge pin (1) is rotatably coupled to the rotating hole (2b) is connected to rotate with each other, the hinge pin (1) is As the fixing bolt 4 and the female screw portion 1c were fastened, it was fixed to the boom and the operating cylinder and the connecting member, and the working member for construction and agricultural use 2a.

In addition, a flat washer 4a was installed between the fixing bolt 4, the boom and the connecting member, and the outer surface of the construction and agricultural working member 2a, and the boom and the connecting member and the construction and agricultural working member ( To prevent idling of the hinge pin 1 on the outer surface of 2a), the rotation preventing part 1a of the hinge pin 1 is inserted into the fitting hole 2c ', and the insertion part 1b of the hinge pin 1 is inserted. The rotation preventing boss 2c penetrating the through hole 2c '' was welded and installed.

However, conventionally, welding deformation occurs by welding joints of the anti-rotation boss 2c, so that the length of the fitting hole 2c 'of the anti-rotation boss 2c is hinge pin 1 as shown in FIG. 1. ) Longer than the length of the rotation preventing portion (1a) to the first length (d1), or as shown in Figure 2, the length of the fitting hole (2c ') of the boss (2c) for preventing rotation is a hinge pin (1) It was formed to be shorter to the second length (d2) than the length of the rotation preventing portion (1a).

That is, the hinge pin 1 is rotated to the rotating hole (2b) while protruding by a first length (d1) from the rotating hole (2b) of the boom and the working cylinder and the connecting member and the construction and agricultural work member (2a) Or, it is coupled to be rotated in the rotating hole 2b while being inserted less than the second length d2 into the rotating hole 2b.

So, conventionally, as shown in FIG. 1, there was a fear that a space was formed between the flat washer 4a, the boom and the connecting member, and the outer surface of the work member for farming and farming 2a, and shown in FIG. As described above, a gap between the flat washer 4a and the hinge pin 1 is formed, so that the flat washer 4a is bent by the pressing force of the fixing bolt 4 that is fastened to the hinge pin 1. There were concerns that could be.

In this regard, Patent Document 1 is a first and second arms constituting the boom of the construction equipment, and an operation cylinder and a connection bracket for pin assembly of the boom for the construction equipment for connecting and connecting the boom, the connection bracket The assembly pins are formed on both sides of the plate, and the assembly pins are inserted and screwed to assemble the assembly pins. Provided is an anti-rotation type pin assembly device for a boom for construction equipment, characterized in that it is configured to be screwed in an axially assembled state.

However, at present, unlike the patent document 1, there is a situation in which a hinge pin fixing member for construction equipment and agricultural machinery capable of solving conventional problems is desired.

Patent Literature 1: Domestic Patent Publication No. 10-2017-0020584 (released on Feb. 23, 2017.)

Accordingly, the present invention is a hinge pin for construction equipment and agricultural machinery, which is fastened differently from the prior art, to a hinge pin for rotationally connecting a boom and a working cylinder and a connecting member included in a loader for construction equipment and agricultural machinery, and a work member for construction and agricultural use. The purpose is to provide a fixing member.

In order to achieve the above object, the present invention, the construction equipment and agricultural machinery loaders and operating cylinders and connecting members included in the loader, and construction equipment and agricultural machinery fastened to the hinge pin that connects the working members of the agricultural and agricultural use In the hinge pin fixing member, a body plate having a through-hole in the center is formed, and the rim of the body plate is bent to form a first rim on one side of the boom and connecting member and one side facing the outer surface of the work member for construction and farming. While forming the insertion space, a washer that formed a second insertion space in the center of one side of the opposite side, a head part inserted into the second insertion space and in close contact with the body plate, and a hinge pin while protruding from the head and penetrating through the through hole Fixing bolt consisting of a male screw portion fastened to the female screw portion of the, and only a part is inserted into the first insertion space, the other part protrudes from the first insertion space, the boom and the connection part And, it provides a hinge pin holding member for construction machines and agricultural machinery, characterized in that, including the O-ring is in close contact with the outer surface of the construction and operation nongsayong member.

In the present invention, since the O-ring protruding from the first inserting space of the washer is in close contact with the outer surface of the boom and the connecting member and the work member for construction and farming, the hinge pin is boomed and the working cylinder and the connecting member by welding deformation of the boss for preventing rotation. And, even though the projecting from the rotating hole of the construction and agricultural work member is coupled to be rotated in the rotating hole, a space is not formed between the washer, the boom and the connecting member, and the outer surface of the construction and agricultural work member.

That is, when the loader for construction equipment and agricultural machinery is operated, there is an effect of preventing the noise from being generated by shaking the washer.

According to the present invention, the hinge pin is rotated while being less inserted into the rotating hole of the boom and the working cylinder and the connecting member and the construction and agricultural work member by welding deformation of the boss for preventing rotation, even if the washer is not supported by the hinge pin, the washer Since the stiffness is increased and supported by the O-ring, there is an effect of preventing the washer from being warped by strong pressure of the fixing bolt fastened to the hinge pin.

That is, when operating the loader for construction equipment and agricultural machinery, there is an effect of preventing the malfunction due to the washer damage.

In the present invention, since the shape of the first inserting space of the washer and the O-ring are formed identically, when the fixing bolt and the hinge pin are fastened, the space between the first inserting space of the washer and the O-ring is sealed, such as rainwater or foreign matter such as small grains. This has the effect of preventing the inflow phenomenon.

In the present invention, since the fixing bolt is not exposed much in the second insertion space of the washer, there is an effect that the foreign matter such as a stone is not easily caught.

That is, it is effective to prevent the phenomenon that the fastening of the fixing bolt and the hinge pin is released due to a foreign material jam such as a stone.

In the present invention, since the first and second spaces are formed by bending the rim of the body plate, there is an effect that the body plate does not protrude like a blade.

That is, since it prevents the formation of a space between the washer, the boom and the connecting member, and the outer surface of the work member for construction and farming, it prevents foreign matters such as stones from being inserted and prevents an operator's hand from being injured and injured. There is.

1 and 2 is a cross-sectional view of the installation state of the hinge pin fixing member for conventional construction equipment and agricultural machinery,
Figure 3 is an installation state of the hinge pin fixing member for construction equipment and agricultural machinery according to an embodiment of the present invention,
4 and 5 are cross-sectional views of FIG. 3,
6 is a perspective view of a washer of the hinge pin for construction equipment and agricultural machinery according to an embodiment of the present invention.

Accordingly, the embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

3 to 6, the hinge pin fixing member 100 for construction equipment and agricultural machinery according to an embodiment of the present invention includes a boom and a working cylinder and a connecting member included in the loader 2 for construction equipment and agricultural machinery. And, it is fastened to the hinge pin (1) that connects the construction and agricultural work members (2a) to rotate with each other in pairs, the hinge pin (1) to the boom and the operating cylinder and the connecting member, and the construction and agricultural working members (2a) ).

And, the construction equipment and agricultural machinery loader (2) is made of a connecting member made of a bracket or the like mounted on a traveling device (3) for construction equipment and agricultural machinery, such as a tractor, and a hinge pin (1) on one side of the connecting member. A boom that is connected to be rotated, an operating cylinder that is both rotatably connected to a bent portion and a connecting member formed at the center of the boom by a hinge pin (1), and a hinge pin (one of the bent portions formed at the center of the boom) 1) another connecting member made of a bracket or the like which is rotatably connected by one another, and another working cylinder which is connected to the other connecting member to be rotated by a hinge pin 1, and the other end of the boom and the other operating cylinder. Another connecting member made of a link or the like that is rotatably connected by a hinge pin (1) and a plurality of links, and a bucket connected to another connecting member to be rotated by a hinge pin (1), etc. It includes construction and operation nongsayong member made.

Here, the boom and the operating cylinder and the connecting member, and the work member for construction and agricultural use (2a) is formed through a rotary hole (2b).

In addition, one side of the outer surface of the boom and the connecting member and the construction and farming work member 2a is connected to the fitting hole 2c 'and the fitting hole 2c' in the form of a periphery of the rotating hole 2b. The boss 2c for rotation prevention in which the through hole 2c '' is formed is installed by welding.

Here, the hinge pin fixing member 100 for construction equipment and agricultural machinery is installed by being fastened to the hinge pin 1 at one side opposite to the outer surface of the boom and connecting member and the work member for construction and farming use 2a.

In addition, the hinge pin 1 is formed to protrude from the rotation-preventing portion 1a and the rotation-preventing portion 1a, which are fitted into the fitting hole 2c 'of the rotation-preventing boss 2c, and the rotation-preventing boss 1a An insertion portion 1b that is rotatably coupled to the rotation hole 2b while passing through the through hole 2c '' of (2c), and a female screw portion 1c formed at one end of the insertion portion 1b are included. .

Here, the hinge pin 1 is formed through the rotation preventing portion (1a) to the central position of the insertion portion (1b), there is formed a lubricating oil injection passage capable of lubricating oil into the inside.

That is, the hinge pin 1 is formed with a lubricating oil injection passage through which a boom and a working cylinder and a connecting member and a lubricating oil for smoothly rotating the construction and working member 2a are injected.

In addition, the hinge pin fixing member 100 for construction equipment and agricultural machinery constitutes a body plate 11 having a through hole 11a in the center, and by bending the rim of the body plate 11, the boom and the connecting member And, while forming the first insertion space 12 on the rim of one side facing the outer surface of the work member for construction and agricultural use (2a) (2), the washer 10 formed a second insertion space (13) in the center of the other side Is included.

Here, the body plate 11 is formed in a shape similar to a circular plate, and the washer 10 is formed by the first and second insertion spaces 12 and 13 formed by bending the rim of the body plate 11. The stiffness increases.

Then, the hinge pin fixing member 100 for the construction equipment and agricultural machinery is inserted into the second insertion space 13 to form a head portion 21 that is in close contact with the body plate 11, and protrudes from the head portion 21. The fixing bolt 20 made of a male screw portion 22 that is fastened to the female screw portion 1c of the hinge pin 1 while passing through the through hole 11a is included.

In addition, the hinge pin fixing member 100 for the construction equipment and agricultural machinery is inserted into the first insertion space 12, and the O-ring 30 is in close contact with the boom and the connecting member and the outer surface of the working member for construction and agricultural use 2a. Is included.

Here, the O-ring 30 is only partially inserted into the first insertion space 12, and the other part protrudes from the first insertion space 12, and the outer surface of the boom and connecting member and the construction and agricultural work member 2a Is in close contact with.

In addition, the first insertion space 12 is formed in the same shape as the O-ring 30.

When explaining the operation and effects of the hinge pin fixing member 100 for the construction equipment and agricultural machinery according to an embodiment of the present invention configured as described above are as follows.

As shown in Figure 3 to Figure 6, while inserting the rotation preventing portion (1a) of the hinge pin (1) in the fitting hole (2c ') of the anti-rotation boss (2c) through the penetration of the anti-rotation boss (2c) Through the hole (2c '') through the insertion portion (1b) of the hinge pin (1), the boom and the working cylinder and the connecting member, and the construction and agricultural work member (2a) is a hinge pin so that the pair is rotated to be connected to each other (1) the insertion portion (1b) of the boom and the operation cylinder and the connecting member, and the rotational hole (2b) of the construction and agricultural work member (2a) is coupled to rotate.

Here, the boss for preventing rotation (2c) is installed on the outer surface of the boom and the connecting member and the work member for construction and farming (2a) by welding, so that welding deformation occurs as in the prior art.

For this reason, as shown in FIG. 4, the length of the fitting hole 2c 'of the rotation preventing boss 2c is a first length d1 than the length of the rotation preventing portion 1a of the hinge pin 1. It is formed to be long.

So, the anti-rotation part 1a of the hinge pin 1 is inserted deeper into the fitting hole 2c 'of the anti-rotation boss 2c by a first length d1, and the hinge pin 1 is inserted. The part (1b) is coupled to be rotated to the rotating hole (2b) while protruding by a first length (d1) from the rotating hole (2b) of the boom and the working cylinder and the connecting member, and the construction and agricultural work member (2a).

That is, one end of the insertion portion 1b of the hinge pin 1 and one end on the outermost side of the rotating hole 2b are not positioned collinearly.

Then, the O-ring 30 is inserted into the first insertion space 12 of the washer 20.

Here, the O-ring 30 is only partially inserted into the first insertion space 12, and the other part protrudes from the first insertion space 12.

In addition, since the first insertion space 12 is formed in the same manner as the shape of the O-ring 30, a part of the O-ring 30 is fitted into the first insertion space 12.

Then, while the head portion 21 of the fixing bolt 20 is in close contact with the body plate 11 of the washer 10, the male screw portion 22 of the fixing bolt 20 protrudes from the rotating hole 2b. It is fastened to the female screw portion 1c of the hinge pin 1.

Then, the body plate 11 of the washer 10 is in close contact with the head portion 21 of the fixing bolt 20 and the insertion portion 1b of the hinge pin 1, and the head portion of the fixing bolt 20 21 is inserted into the second insertion space 13 of the washer 10.

Here, the O-ring 30 protruding from the first insertion space 12 of the washer 10 is in close contact with the outer surface of the boom and the connecting member and the construction and farming work member 2a, so that the washer 10 and , Without a space is formed between the outer surface of the boom and the connecting member, and the work member for construction and farming (2a), the washer 10 is supported on the O-ring (30).

In addition, since the first insertion space 12 is formed in the same way as the shape of the O-ring 30, between the first insertion space 12 and the O-ring 30, the female screw portion 1c of the hinge pin 1 ) And the male screw 22 of the fixing bolt 20 is fastened and sealed by the washer 10 that presses the O-ring 30.

On the other hand, as shown in Figure 5, by the welding deformation of the boss (2c) for preventing rotation, the length of the fitting hole (2c ') of the boss (2c) for preventing rotation is prevented from rotating by the hinge pin (1) ( It may be formed to be shorter to the second length (d2) than the length of 1a).

So, the anti-rotation part 1a of the hinge pin 1 is fitted less than the second length d2 into the fitting hole 2c 'of the anti-rotation boss 2c, and the insertion part of the hinge pin 1 (1b) is coupled to be rotated to the rotating hole (2b) while being inserted less than the second length (d2) into the rotating hole (2b) of the boom and the working cylinder and the connecting member, and the construction and agricultural work member (2a).

That is, one end of the insertion portion 1b of the hinge pin 1 and the outermost one end of the rotating hole 2b are not positioned collinearly.

Then, the O-ring 30 is inserted into the first insertion space 12 of the washer 20.

Here, the O-ring 30 is only partially inserted into the first insertion space 12, and the other part protrudes from the first insertion space 12.

In addition, since the first insertion space 12 is formed in the same manner as the shape of the O-ring 30, a part of the O-ring 30 is fitted into the first insertion space 12.

Then, while the head portion 21 of the fixing bolt 20 is in close contact with the body plate 11 of the washer 10, the male screw portion 22 of the fixing bolt 20 protrudes from the rotating hole 2b. It is fastened to the female screw portion 1c of the hinge pin 1 which is not.

Then, the body plate 11 of the washer 10 is in close contact with the head portion 21 of the fixing bolt 20, but is not in close contact with the insertion portion 1b of the hinge pin 1.

That is, since the insertion portion 1b of the hinge pin 1 does not protrude from the rotating hole 2b, between the insertion portion 1b of the hinge pin 1 and the body plate 11 of the washer 10 In the gap is formed.

Thus, the head portion 21 of the fixing bolt 20 is inserted into the hinge pin 1 by the fastening force of the female screw portion 1c of the hinge pin 1 and the male screw portion 22 of the fixing bolt 20. The body plate 11 of the washer 10 that is not supported by the portion 1b is strongly pressed.

Here, the O-ring 30 protruding from the first insertion space 12 of the washer 10 is in close contact with the outer surface of the boom and the connecting member and the work member for construction and agricultural use 2a, and the head of the fixing bolt 20 The part 21 is inserted into the second insertion space 13 of the washer 10.

However, since the stiffness was increased by the first and second insertion spaces 12 and 13 formed while the rim of the body plate 11 was bent, the body plate 11 of the washer 10 was formed. Is to withstand the pressing force of the head portion 21 of the fixing bolt 20.

In addition, since the O-ring 30 protruding from the first insertion space 12 of the washer 10 is in close contact with the outer surface of the boom and the connecting member and the construction and agricultural work member 2a, the washer 10 The body plate 11 is more resistant to the pressing force of the head portion 21 of the fixing bolt 20 with the elasticity of the O-ring 30.

In addition, since the first insertion space 12 is formed in the same way as the shape of the O-ring 30, between the first insertion space 12 and the O-ring 30, the female screw portion 1c of the hinge pin 1 ) And the male screw 22 of the fixing bolt 20 is fastened and sealed by the washer 10 that presses the O-ring 30.

Thus, the boom and the working cylinder and the connecting member included in the loader 2 for construction equipment and agricultural machinery, and the working member for construction and farming use 2a are connected to each other by a pair of hinge pins 1, and the hinge pins (1) is fixed to the boom and the operation cylinder and the connecting member and the construction and agricultural use working member 2a by the hinge pin fixing member 100 for construction equipment and agricultural machinery of the present invention.

In addition, the construction equipment and agricultural machinery loader 2 is mounted on a traveling body 3 for construction equipment and agricultural machinery, such as a tractor.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and has ordinary knowledge in the technical field to which the present invention belongs without departing from the spirit of the present invention. Various changes and modifications will be possible by the ruler.

10: washer 11: body plate
11a: through hole 12: first insertion space
13: second insertion space 20: fixed bolt
21: head 22: male thread
30: O-ring 100: hinge pin fixing member for construction equipment and agricultural machinery

Claims (2)

In the boom and the operating cylinder and the connecting member included in the loader for the construction equipment and agricultural machinery, and the hinge pin fixing member for the construction equipment and agricultural machinery fastened to the hinge pin for rotationally connecting the work member for construction and farming,
Consists of a body plate (11) having a through hole (11a) formed in the center, and bending the rim of the body plate (11), rim of one side facing the outer surface of the boom and connecting member, and construction and farming work member A first washer space (12) while forming a second washer space (13) in the center of one side of the opposite side,
The head portion 21 inserted into the second insertion space 13 and in close contact with the body plate 11 and protrudingly formed in the head portion 21 penetrates the through hole 11a while the hinge pin 1 of the Fixing bolt 20 made of a male screw portion 22 fastened to the female screw portion (1c),
A part of the first insertion space 12 is partially inserted, and the other part includes an O-ring 30 protruding from the first insertion space 12 and in close contact with an outer surface of a work member for construction and agricultural use. ,
The first insertion space 12 is a hinge pin fixing member for construction equipment and agricultural machinery, characterized in that it is formed in the same way as the shape of the O-ring (30). delete

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