KR20200011278A - Hinge pin fixing member for construction equipment and farming machine - Google Patents

Abstract

The present invention relates to a hinge pin fixing member for construction equipment and agricultural machines, capable of being fastened with a hinge pin connecting a work member for construction and agriculture and a connection member and an operation cylinder and a boom included in a loader for construction equipment and agricultural machines. More specifically, the hinge pin fixing member includes: a washer forming a body plate including a through hole formed in the center, and forming a first insertion space on the edge of one side facing the outer surface of a work member for construction and agriculture, a connection member and a boom by bending the edge of the body plate while forming a second insertion space on the other side; a fixing bolt comprising a head part inserted into the second insertion space to be attached to the body plate, and a male screw part protruding from the head part to be coupled with a female screw part of the hinge pin through the through hole; and an O-ring having one part inserted into the first insertion space, and having the other part attached to the outer surface of the outer surface of the work member for construction and agriculture, the connection member and the boom by protruding from the first insertion space.

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, in particular to a hinge pin for connecting the boom and the operating cylinder and connecting members included in the construction equipment and agricultural machinery loaders, and construction and agricultural work members to each other rotationally The present invention relates to a hinge pin fixing member for construction equipment and agricultural machinery, which is fastened differently from the conventional art.

In general, construction equipment such as tractors and farming vehicles are equipped with construction equipment and agricultural machinery loaders including construction and farming work members such as buckets, soil excavation work, rock excavation work, concrete building crushing work, etc. The same was put into various construction work.

Therefore, for easy construction work, the construction equipment and agricultural machinery loader including the boom and operation cylinder and connecting member, and the construction and agricultural working member 2a were important.

Here, the boom and the operation cylinder and the connecting member, and the construction and agricultural work member (2a) is connected to the hinge pin (1) rotatably coupled to the rotation hole (2b) to be rotated with each other, the hinge pin (1) The fixing bolt 4 and the female screw 1c were fastened to the boom and the working cylinder and the connecting member, and the work and the working member 2a for construction and farming.

In addition, a flat washer (4a) is installed between the fixing bolt (4), the boom and the connection member, and the outer surface of the construction and agricultural work member (2a), the boom and the connecting member, and the construction and agricultural work member ( On the outer surface of 2a), the anti-rotation portion 1a of the hinge pin 1 is fitted into the fitting hole 2c 'to prevent the hinge pin 1 from idling, and the insertion portion 1b of the hinge pin 1 is inserted therein. The anti-rotation boss 2c through which the through hole 2c '' penetrates was welded and installed.

However, in the related art, welding deformation occurs by welding bonding of the anti-rotation boss 2c, and as shown in FIG. 1, the length of the fitting hole 2c 'of the anti-rotation boss 2c is hinge pin 1. The length of the fitting hole 2c 'of the anti-rotation boss 2c is longer than the length of the anti-rotation part 1a, or as shown in FIG. It was formed to be shorter than the length of the rotation preventing portion (1a) of the second length (d2).

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

Thus, 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 construction and farming working member 2a, as shown in FIG. As described above, a gap is formed between the flat washer 4a and the hinge pin 1, and a bending phenomenon in which the flat washer 4a is bent due to the pressing force of the fixing bolt 4 engaged with the hinge pin 1 is generated. There was a concern.

In this regard, Patent Document 1, in the anti-rotational pin assembly of the boom for construction equipment for connecting the first and second arms constituting the boom of the construction equipment and the operation cylinder and the connecting bracket by pin assembly, the connection bracket Insert the assembly pins into the assembly holes formed on both sides of the plate and screw them to assemble them, but the assembly holes of one plate and the assembly pins inserted into the assembly holes have a polygonal structure corresponding to each other so that the assembly pins are prevented from idling. Provided is an anti-rotation pin assembly device for a boom for construction equipment, characterized in that the screw assembly in the assembled state.

However, at present, it is a situation that wants a hinge pin fixing member for construction equipment and agricultural machinery that can solve the conventional problems unlike Patent Document 1.

Patent Document 1: Korean Patent Publication No. 10-2017-0020584 (published Feb. 23, 2017)

Accordingly, the present invention is a hinge pin for construction equipment and agricultural machinery, which is fastened differently from the conventional to the boom and the operating cylinder and the connection member included in the construction equipment and agricultural machinery loaders, and the construction and agricultural work members to rotate to each other rotationally It is an object to provide a fixing member.

In order to achieve the above object, the present invention, the construction equipment and agricultural machinery for the construction equipment and agricultural machinery is fastened to the hinge pin for connecting the boom and operation cylinders and connecting members, and construction and agricultural work members to each other rotationally A hinge pin fixing member comprising a body plate having a through hole formed at a center thereof, and having a first bent edge on one side facing the outer surface of the boom and the connecting member and the construction and farming work member by bending the edge of the body plate. A washer having a second insertion space in the center of one side of the opposite side while forming an insertion space, a head inserted into the second insertion space to be in close contact with the body plate, and a hinge pin formed to protrude from the head and penetrate the through hole. Fixed bolt consisting of a male screw portion fastened to the female thread portion of the, and only a part is inserted into the first insertion space, the other part is protruded from the first insertion space boom and connecting portion 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.

The present invention is because the O-ring protruding from the first insertion space of the washer is in close contact with the outer surface of the boom and the connecting member, and the construction and farming working member, the hinge pin is boom and the operation cylinder and the connecting member by the welding deformation of the anti-rotation boss And, even if it is rotatably coupled to the rotating hole while protruding from the rotating hole of the construction and agricultural work members, no space is formed between the washer, the boom and the connecting member, and the outer surface of the construction and agricultural work members.

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

According to the present invention, the hinge pin is rotated while being inserted into the rotation hole of the boom and the operation cylinder and the connecting member and the construction and farming work members by the welding deformation of the anti-rotation boss, so that the washer is not supported by the hinge pin. Since the rigidity is increased and supported by the O-ring compared to the prior art, there is an effect of preventing the bending phenomenon of the washer by the strong pressure of the fixing bolt fastened to the hinge pin.

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

In the present invention, since the first insertion space of the washer and the shape of the O-ring are formed in the same manner, when the fixing bolt and the hinge pin are fastened, the first insertion space of the washer and the O-ring are sealed, such as foreign matter such as rainwater or small grains. There is an effect that prevents the incoming 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 it is not easily caught by foreign substances such as stones.

That is, by locking the foreign matter such as stones, there is an effect of preventing the fastening of the fixing bolt and the hinge pin loosening.

In the present invention, since the edge of the body plate is bent to form the first and second spaces, the body plate does not protrude like a blade to the outside of the washer.

That is, because it prevents the space between the washer, the boom and the connecting member, and the outer surface of the construction and farming working member, it prevents foreign matters such as stones from being caught and prevents the worker's hand from getting 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.
Figure 6 is a perspective view of the washer of the hinge pin fixing member 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.

As shown in Figures 3 to 6, the hinge pin fixing member 100 for construction equipment and agricultural machinery according to an embodiment of the present invention is a boom and operation cylinder and connecting member included in the construction equipment and agricultural machinery loader (2) And a hinge pin (1) connecting the construction and farming working members (2a) to each other to rotate in pairs, thereby connecting the hinge pin (1) to the boom and the working cylinder and the connecting member, and the construction and farming working members (2a). It is used to fix it.

In addition, the construction equipment and the loader for agricultural machinery (2) is made of a connecting member made of construction equipment such as a tractor and the like for traveling on the agricultural machinery (3), and one side by the hinge pin (1) to the connecting member The boom is rotatably connected, the operating cylinder is connected to both sides of the bent portion formed in the center of the boom and the connecting member is rotated by the hinge pin (1), and one side of the bent portion formed in the center of the boom hinge pin ( The other connecting member made of a bracket or the like connected to rotate by 1), the other working cylinder is connected to the other connecting member is rotated by the hinge pin (1), and the other side of the boom and the other working cylinder Another connecting member which is rotated by the hinge pin (1) and made of a plurality of links and the like, and another bucket connected to the other connecting member to be rotated by the hinge pin (1) It includes construction and operation nongsayong member made.

Here, the boom and the operation cylinder and the connecting member, and the construction and agricultural work member (2a) is formed through the rotating hole (2b).

In addition, the outer side of the boom and the connecting member, and the construction and agricultural work member (2a) is connected to the fitting hole (2c ') and the fitting hole (2c') of the straight form around the rotation hole (2b) An anti-rotation boss 2c having a through hole 2c '' is provided by welding.

Here, the hinge pin fixing member 100 for construction equipment and agricultural machinery is fastened to the hinge pin (1) on the opposite side of the outer surface of the boom and the connecting member, and the construction and agricultural work member (2a) is installed.

In addition, the hinge pin (1) is formed of a linear anti-rotation portion (1a) to be fitted into the fitting hole (2c ') of the anti-rotation boss (2c), and protrudes from the anti-rotation portion (1a) and the anti-rotation boss Insertion part 1b which is rotatably coupled to the rotation hole 2b while penetrating through the through-hole 2c "of (2c), and the female screw part 1c formed in one end of the said insertion part 1b is included. .

Here, the hinge pin 1 is formed to penetrate from the rotation preventing portion 1a to the central position of the insertion portion 1b, thereby forming a lubricating oil injection passage capable of lubricating oil therein.

That is, the hinge pin (1) is formed with a lubricating oil injection path is injected lubricating oil to facilitate the rotational movement of the boom and the working cylinder and the connecting member, and construction and agricultural work member (2a).

In addition, the hinge pin fixing member 100 for construction equipment and agricultural machinery constitutes a body plate 11 having a through hole 11a formed at the center thereof, and bends the edge of the body plate 11 to form a boom and a connection member. And a washer 10 in which a second insertion space 13 is formed at the center of one side of the opposite side while the first insertion space 12 is formed at the edge of one side facing the outer surface of the construction and farming work member 2a. Included.

Here, the body plate 11 is formed in a shape similar to a circular plate, the washer 10 is formed by the first and second insertion spaces 12 and 13 formed while the edge of the body plate 11 is bent. Stiffness will increase.

In addition, the hinge pin fixing member 100 for construction equipment and agricultural machinery is inserted into the second insertion space 13, the head 21 is in close contact with the body plate 11, and protruding from the head 21 And a fixing bolt 20 made of a male screw portion 22 which is penetrated to the female screw portion 1c of the hinge pin 1 while passing through the through hole 11a.

And, the construction equipment and agricultural machinery hinge pin fixing member 100 is inserted into the first insertion space 12, the boom and the connection member, and the O-ring 30 in close contact with the outer surface of the construction and agricultural work member (2a) is Included.

Here, only part of the O-ring 30 is inserted into the first insertion space 12, the other part protrudes from the first insertion space 12, the outer surface of the boom and the connection member, and work and agricultural work members (2a) Close to

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

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

As shown in FIGS. 3 to 6, the anti-rotation boss 2c penetrates while the anti-rotation portion 1a of the hinge pin 1 is inserted into the fitting hole 2c 'of the anti-rotation boss 2c. The hole 2c '' is penetrated by the insertion part 1b of the hinge pin 1, and the hinge pin so that the boom, the operation cylinder and the connecting member, and the construction and farming working member 2a are connected to each other in a pair. The insertion part 1b of (1) is rotatably coupled to the boom and the operation cylinder and the connection member, and the rotation hole 2b of the construction and farming working member 2a.

Here, since the rotation preventing boss 2c is installed by welding at the outer surface of the boom and the connecting member and the work and farming working member 2a, 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 anti-rotation boss 2c is equal to the first length d1 than the length of the anti-rotation portion 1a of the hinge pin 1. It is formed long.

Thus, 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 the first length d1, and the insertion of the hinge pin 1 is performed. The portion 1b is rotatably coupled to the rotation hole 2b while protruding by the first length d1 from the rotation hole 2b of the boom and the operation cylinder and the connection member and the construction and farming work member 2a.

That is, one end of the insertion portion 1b of the hinge pin 1 and one end of the outermost portion of the rotation hole 2b are not positioned in the same line.

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

Here, only part of the O-ring 30 is 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 shape as 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 rotation hole (2b). 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 insertion portion 1b of the head 21 and the hinge pin 1 of the fixing bolt 20, the head 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 working member (2a), and the washer 10 and The washer 10 is supported by the O-ring 30 without forming a space between the boom and the connecting member and the outer surface of the construction and farming working member 2a.

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

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

Thus, the anti-rotation portion 1a of the hinge pin 1 is less fitted into the fitting hole 2c 'of the anti-rotation boss 2c by the second length d2, and the insertion portion of the hinge pin 1 (1b) is rotatably coupled to the boom and the operation cylinder and the connecting member and the rotation hole (2b) while being inserted less by the second length (d2) into the rotation hole (2b) of the work and agricultural work members (2a).

That is, one end of the insertion portion 1b of the hinge pin 1 and one end of the outermost portion of the rotation hole 2b are not positioned in the same line.

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

Here, only part of the O-ring 30 is 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 shape as 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 rotation hole (2b). To the female threaded 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, but 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 rotation hole 2b, between the insertion portion 1b of the hinge pin 1 and the body plate 11 of the washer 10. The gap is formed.

Thus, 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 head 21 of the fixing bolt 20 is inserted into the hinge pin 1. 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 connection member, and the construction and agricultural work member (2a), 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 washer 10 has increased rigidity by the first and second insertion spaces 12 and 13 formed while the edge of the body plate 11 is bent, the body plate 11 of the washer 10. The withstand pressure of the head 21 of the fixing bolt 20.

In addition, 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 connection member and the construction and farming working member 2a, so that the washer 10 Body plate 11 is to endure the pressing force of the head portion 21 of the fixing bolt 20 by the elasticity of the O-ring 30.

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

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

In addition, the construction equipment and the agricultural machine loader 2 are mounted on the construction equipment such as a tractor and the like.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the spirit of the present invention. Various changes and modifications may be made by the user.

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

Claims (2)

In the construction equipment and agricultural machinery loaders boom and operating cylinders and connecting members, and construction equipment and agricultural machinery hinge pin fastening members fastened to the hinge pin for rotationally connecting the construction and agricultural work members,
A body plate 11 having a through hole 11a formed in the center thereof is bent, and the edge of the body plate 11 is bent, and the edge of one side facing the outer surface of the boom and the connection member and the construction and farming work member. A washer 10 having a first insertion space 12 formed therein and a second insertion space 13 formed at the center of one side of the opposite side;
The head portion 21 inserted into the second insertion space 13 to be in close contact with the body plate 11 and protruding from the head portion 21 to penetrate the through hole 11a and A fixing bolt 20 made of a male screw portion 22 fastened to the female screw portion 1c,
Only a part of the first insertion space 12 is inserted, and the other part of the protruding from the first insertion space 12, including the boom and the connection member, and the O-ring 30 in close contact with the outer surface of the construction and agricultural work members Hinge pin fixing member for construction equipment and agricultural machinery. The method of claim 1,
The first insertion space 12 is a hinge pin fixing member for construction equipment and agricultural machinery, characterized in that formed in the same shape as the O-ring (30).

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