WO2016133257A1

WO2016133257A1 - Bush bearing and sliding bearing, which include unbroken composite material fiber layer, and manufacturing method thereof

Info

Publication number: WO2016133257A1
Application number: PCT/KR2015/009748
Authority: WO
Inventors: 유준일
Original assignee: 유준일
Priority date: 2015-02-16
Filing date: 2015-09-16
Publication date: 2016-08-25
Also published as: KR101616015B1

Abstract

The present invention relates to bush and sliding bearings capable of exhibiting excellent effects in a harsh driving environment such as a high load condition, frequent changes in a load condition, and an insufficient lubrication condition in use areas of rotating construction equipment, a construction machine and the like, and each of the bush bearing and the sliding bearing, which include unbroken composite material fiber layers, according to embodiments of the present invention, comprises: a cylindrical body part made from a composite material; and a plurality of grooves formed on the inside of the cylindrical body part, wherein the composite material fiber layer, which forms the cylindrical body part, is not cut and formed to continue along the peripheries of the plurality of grooves.

Description

Bush bearings and sliding bearings comprising an unbroken composite fiber layer and apparatus for manufacturing same

The present invention relates to a bearing, and more particularly, it can exert an excellent effect in a harsh driving environment such as high load condition, frequent load condition variation, insufficient lubrication condition, etc. in the use area of rotating mechanical equipment and construction machinery. To a bush and a sliding bearing and a manufacturing apparatus thereof.

In general, a bearing moves with a pin and shaft and frictional force, which is a mechanical element embedded with a solid lubricant in a pin or shaft support layer (hereinafter, referred to as a slide layer) of the bearing or forming a lining layer or coating layer of a non-ferrous alloy, ceramic, resin composite, or the like. It is mainly used as supporting part or sliding part of the device in rotating industrial machine, guide post of mold, joint part of construction machine, etc., and it is divided into bush type (cylindrical, semi-cylindrical) and flat type according to its shape and function. .

In particular, the joint portion of the high-load rotary machine and construction machine is driven under the surface pressure condition of 1.8Mpa ~ 120Mpa when driving, and the driving speed has a large deviation driving conditions of 0.2 cm / sec ~ 10 cm / sec. In addition, it does not have a uniform drive load and drive speed, but changes continuously according to the working environment.

In forming the metal or non-metallic or polymer sliding layer on the metal support layer in such a bearing, a sliding layer made of a single material may be formed, but a plurality of materials formed of heterogeneous materials may be used depending on the shape and material of the supporting structure, the dynamic and static pressure according to the sliding. It may be formed in a layer of.

In addition, even in the case of forming a single material, in some cases a single material may be formed in the form of a plurality of layers.

Lubricating oils and greases are used to improve durability and reduce noise under complex and harsh operating conditions.They improve lubrication characteristics, including the collection of external impurities, durability life, extended maintenance intervals, and extended replenishment periods of lubricants and greases. In order to form the pores, grooves (grooves) or grooves (dimples) in various forms on the slide layer has been used.

However, when the sliding layer of the bearing does not have sufficient support for static load, dynamic load, boundary lubrication conditions, etc., the load bearing area is reduced by grooves or dimples, which increases the wear amount, which reduces durability. Alternatively, in the case of a polymer sliding layer having no dimple, impurities cannot be collected and foreign substances are mixed with grease or lubricating oil between the sliding layer and the pin or shaft, resulting in a decrease in durability or an increase in noise. Shorten the refill period of the grease or shorten the replacement cycle.

In the case of the slide layer using polymer, the reinforcement particles or low friction particles are mixed or include the fiber base material, but the fiber base material is broken by processing the surface of the slide layer by performing post-processing to satisfy the high precision required by the bearing. This significantly reduces the physical properties.

In addition, the sliding layer needs a bearing formed integrally without breaking, but the existing bearing manufacturing apparatus is difficult to manufacture the integral bearing in which the sliding layer continues without breaking.

In addition, even if the conventional bearing manufacturing apparatus to manufacture a one-piece bearing in which the sliding layer is continuous, there is a very difficult to separate the bearing without damaging the shape of the bearing in the bearing manufacturing apparatus.

Therefore, the present invention has been proposed in consideration of the above-mentioned matters, and it is possible to secure the load bearing capacity of the sliding layer, the capacity for the uneven load, the expansion of wear resistance, the improvement of static characteristics or static characteristics under boundary lubricating conditions, and the like. To provide a bearing.

That is, even if the groove is formed in the bearing sliding layer formed of a composite material to provide a bearing that can prevent the physical properties from deteriorating.

In addition, it is possible to minimize the friction coefficient by reducing the contact area of the slide layer, thereby providing a bearing that can also improve the lubrication function.

And to provide a bearing that can improve the lubrication performance.

Next, the present invention can manufacture an integral bearing in which the slide layer is seamlessly connected, which can secure the load bearing capacity of the slide layer, the capacity to accommodate the unbalanced load, the expansion of wear resistance, the improvement of the static characteristics or the static characteristics under boundary lubricating conditions, and the like. To provide a bearing manufacturing apparatus.

And to provide a bearing manufacturing apparatus that can be easily separated from the bearing manufacturing apparatus without the shape deformation.

And to provide a bearing manufacturing apparatus that can easily heat the entire area to a constant temperature in the bearing manufacturing apparatus integral bearing.

Next, to provide a bearing manufacturing apparatus that can easily discharge the excess portion of the resin used while manufacturing the integral bearing to the outside of the bearing manufacturing apparatus.

The bush bearing and the sliding bearing including the unbroken composite fiber layer according to the embodiments of the present invention include a cylindrical body portion formed of a composite material and a plurality of grooves formed inside the cylindrical body portion, and the cylindrical The composite fiber layer forming the body portion of the continuously formed without being cut along the plurality of grooves circumference.

And the plurality of grooves is characterized in that the collection groove is formed on the inner circumferential surface of the cylindrical body portion and the oil supply groove is formed to extend along the inner peripheral surface of the cylindrical body portion.

Here, the oil supply groove is formed in a zigzag shape along the inner circumferential surface of the cylindrical body, one end is wider than the width of the oil supply groove, the oil supply is opened to the outside is formed and the other end is formed in a closed shape.

And the collection groove is characterized in that the area is narrow in the direction of rotation of the rotating body rotating on the inner peripheral surface of the body portion.

The plurality of grooves may be tapered in a depth direction.

And the entire area of the grooves is characterized in that occupies more than 20% of the total area of the inner peripheral surface of the cylindrical body portion.

And the cylindrical body portion is characterized in that to form a continuous winding of the composite material fibers in a mandrel formed with a plurality of grooves.

And the cylindrical body portion inner groove and the portion where the groove is not formed is characterized in that it has the same physical strength.

And it is characterized in that the coating layer is formed on the inner peripheral surface of the cylindrical body portion.

And it is characterized by construction machinery and industrial machinery including any one of the bush bearing.

Next, the present invention is a cylindrical metal support layer; A body part formed of a composite material and provided inside the metal support layer; And a plurality of grooves formed inside the body portion, and the composite fiber layer forming the body portion is continuously formed without being cut along the circumference of the plurality of grooves.

Next, the composite bearing manufacturing apparatus according to the present invention includes a cylindrical body portion having a divided structure divided into a plurality in the axial direction, one or more of the divided partitions have a cylindrical shape in the axial direction and has a cylindrical shape The formed partitions are separated step by step along the tapered shape, and the bush and the sliding bearing formed through the heating or pressing process after the composite material is wound on the body portion are separated from the body portion without changing the shape.

Here, the partition is formed of a central partition which is formed in the central portion of the body portion and axially tapered and outer partitions surrounding the center partition outside to form a cylindrical outer shape, the bush and the sliding bearing on the outside The formed body part is characterized in that the central partition is separated by sliding outward in the axial direction to form a space portion inside the body portion, wherein the outer partitions are separated from the bush and the sliding bearing in the direction of the inner space portion.

And the partition is characterized in that the heating groove is formed in the axial direction inside the heating groove is inserted into the heating groove to heat the composite material wound on the body portion.

And both ends of the body portion is characterized in that the coupling portion for supporting the partitions forming the body portion is provided.

And between the body portion and the coupling portion is characterized in that the resin discharge groove for discharging the resin used in forming the bush and the sliding bearing to the outside is formed.

The plurality of groove-shaped protrusions formed on the bush and the sliding bearing surface may be continuously formed along the outer surfaces of the partitions on the outer surfaces of the partitions.

The bush bearing and the sliding bearing including the unbroken composite fiber layer according to the present invention can secure the load bearing capacity of the sliding layer, the capacity for the uneven load, the expansion of wear resistance, the improvement of static or dynamic characteristics under boundary lubricating conditions, and the like. Can be.

That is, since the composite fiber layer is formed continuously without breaking, even if the groove portion is formed in the bearing sliding layer, there is an effect that can prevent the physical properties from deteriorating.

In addition, since the composite fiber layer is formed continuously without breaking, the physical properties of the slide layer are maintained, thereby reducing the contact area of the slide layer, thereby minimizing the friction coefficient, thereby improving the lubrication function.

And since the groove shape of the slide layer is formed in a shape that can optimize the oil supply performance can improve the oil supply performance.

Next, since the bush bearing and the sliding bearing manufacturing apparatus including the unbroken composite fiber layer according to the present invention are easily separated and combined with the cylindrical body part which is a shape frame of the integral bearing, the integral bearing is formed in the bearing manufacturing apparatus. It can be easily separated without deformation.

And since a plurality of heating grooves for inserting the heating rod into the cylindrical body portion is formed along the circumference of the bearing manufacturing apparatus, the bearing can be easily heated to a constant temperature in the bearing manufacturing apparatus.

Next, since the resin discharge groove is formed on one side of the cylindrical body part, the excess portion of the resin used while manufacturing the integral bearing is easily discharged to the outside of the bearing manufacturing apparatus, thereby preventing the manufacturing defect of the integral bearing due to the resin excess.

1 is a block diagram of a bearing according to a preferred embodiment of the present invention.

2 is a cross-sectional view of a bearing according to a preferred embodiment of the present invention.

3 is a block diagram of a bearing according to another embodiment of the present invention.

4 is a reference diagram for comparing a bearing with an existing bearing according to a preferred embodiment of the present invention;

5 is a reference view showing various shapes of grooves formed in a bearing according to a preferred embodiment of the present invention.

6 is a reference view showing a state of the bearing manufacturing apparatus according to a preferred embodiment of the present invention

Figure 7 is a reference diagram showing the body portion of the bearing manufacturing apparatus according to a preferred embodiment of the present invention and the shape of the projection formed on the body portion.

Figure 8 is a reference diagram showing the configuration of the coupling portion of the bearing manufacturing apparatus according to a preferred embodiment of the present invention.

9 is a reference diagram showing a body portion division structure of the bearing manufacturing apparatus according to a preferred embodiment of the present invention.

10 is a reference view showing a shape in which a composite material is wound on a bearing manufacturing apparatus according to a preferred embodiment of the present invention.

11 is a reference view showing a state in which a bearing is formed in the bearing manufacturing apparatus according to a preferred embodiment of the present invention

12 is a reference view showing a state in which the body portion is separated after the bearing is formed in the bearing manufacturing apparatus according to an embodiment of the present invention.

Figure 13 is a reference diagram showing a state in which the heating rod is inserted into the body portion of the bearing manufacturing apparatus according to a preferred embodiment of the present invention.

Before describing the embodiments according to the present invention in detail, the present invention is not limited to the configuration shown in the following detailed description or the accompanying drawings, and may be used or performed in various ways.

Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

That is, as used herein, the expressions "mounted", "installed", "connected", "connected", "supported", "coupled", and the like, do not indicate or limit the other. It is used in a wide variety of terms, including both direct and indirect mounting, installation, connection, connection, support, and coupling. The expressions "connected", "connected" and "coupled" are not limited to physical or mechanical connections, connections or couplings.

In the present specification, terms indicating directions, such as top, bottom, downward, upward, rearward, bottom, front, rear, and the like, are used to describe the drawings, but these terms are referred to relative to the drawings for convenience (normally viewed). When). Terms indicating this direction should not be taken as limiting or limiting the present invention in any form.

In addition, the terms "first", "second", "third", and the like as used herein are for illustrative purposes only and should not be considered as meaning relative importance.

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

First, the composite bearing will be described, and then the composite bearing manufacturing apparatus will be described.

Composite material according to a preferred embodiment of the present invention is as follows.

1 is a block diagram of a bush bearing (hereinafter referred to as a bearing) including an unbroken composite fiber layer according to a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view of a bearing 100 according to a preferred embodiment of the present invention. It is composed of a cylindrical body portion 100 and a plurality of grooves formed inside the cylindrical body portion 100.

Body portion 100 is a sliding layer of the bush bearing 100, both ends are open, and the inside is formed in a cylindrical shape with a hollow formed so that the pin and shaft (not shown) on the inner peripheral surface can slide.

The body portion 100 may be made of various composite materials and may be formed of a single composite material or may be formed of a heterogeneous composite material according to a user's selection.

That is, in the form in which the composite fiber layer 120, which is one of the characteristics of the present invention, is formed continuously without breaking, the selection of materials can be easily changed or mixed by the user.

In addition, a resin that firmly supports the composite fiber layer may be freely selected by the user in the form in which the composite fiber layer 120 is continuously formed without breaking.

The manufacturing method of the bearing 100 according to the preferred embodiment of the present invention will be described in more detail below.

Next, a description will be made of the grooves formed inside the body 110, and the grooves are largely divided into an oil supply groove 120 and a collection groove 130.

The oil supply groove 120 is a groove for supplying oil to the inner circumferential surface of the body portion 110. The oil supply groove 120 of the bearing 100 according to the preferred embodiment of the present invention is zigzag along the inner circumferential surface of the cylindrical body portion 110. It is formed in the shape and one end has a width (W2) wider than the width (W1) of the oil supply groove is formed with an oil supply 122 opened to the outside and the other end 126 is formed in a closed shape.

That is, as shown in Figure 1, the oil supply groove 120 is formed in the shape of a long groove extending in a zigzag form along the longitudinal direction (X) of the body portion 110 and the oil supply groove at the end portion of the body portion 110 The width W2 is wider than the width W1, and is formed to be opened to the outside, and the inside of the body part 110 has a closed end without opening to the outside.

This is intended to prevent oil from leaking to the outside by forming in this way to facilitate the oil supply through the oil supply portion 122 of the wide width from the outside and to a blocked shape inside the body portion 110.

The width W1 of the lubrication groove 120 is preferably formed to be 3 ~ 12mm.

Next, the collection groove 130 is a groove for collecting grease or collecting impurities, and a plurality of collection grooves 130 are provided along the rotational direction S and the longitudinal direction X of the rotating body rotating on the inner circumferential surface of the body 110.

And the collection groove 130 is formed in a shape that narrows the area along the rotation direction (S) of the rotating body rotating on the inner peripheral surface of the body portion (110).

That is, as shown in FIG. 5, the collection groove 130 is formed in a rhombus and inverted triangle cross-sectional shape when viewed from above along the direction S of rotation of the rotating body rotating in the inner circumferential surface (Z).

This is to induce the wedge of the grease by the shape narrowing in the rotation direction to smooth the inflow of grease than the existing circular collection groove.

The width of the collection groove 130 is preferably formed to 1 ~ 15mm.

Next, the shape of the depth direction Z of the lubrication groove 120 and the collection groove 130 may have a tapered shape in the depth direction Z rather than a single straight line shape as illustrated in FIG. 5.

This is because the taper is formed to be tapered in the depth direction to accelerate the inflow of grease into the collecting groove 130. The shape of the taper may be a reverse trapezoidal shape, a semicircle shape, and an inverted triangle shape as shown in FIG. It can form according to embodiment.

The depth of the oil supply groove 120 and the collection groove 130 is preferably formed to each 5 ~ 15mm.

3 is a configuration diagram of a bearing according to another preferred embodiment of the present invention, as shown in FIG. 3, the bearing 100 according to another embodiment of the present invention is a bearing according to the preferred embodiment of the present invention described above. In addition to the central oil supply groove 140 and the oil supply hole 150 further includes.

The central lubrication groove 140 is a groove extending along the rotational direction S of the rotating body rotating on the outer circumferential surface on the inner circumferential surface of the body portion 110 to provide oil on the outer circumferential surface of the inner central portion of the body portion 110. To add.

And in order to supply oil to such a heavy oil supply groove 140, and forms an oil supply hole 150 penetrating the body portion 110 in the thickness direction.

Therefore, oil may be supplied to the central oil supply groove 140 through the oil supply hole 150, and the oil supply hole 150 may be connected to the oil supply groove 120 according to a user's selection. The oil supply groove 120 and the central oil supply groove 140 may be configured to connect with each other.

The plurality of grooves provided in the bearing according to the preferred embodiment of the present invention and in another embodiment are configured as described above, and the entire groove area is configured to occupy 20% or more of the total area of the inner circumferential surface of the cylindrical body portion.

This is because the bearing according to the preferred embodiment of the present invention and the other embodiments are rotated on the inner circumferential surface of the bearing because the composite fiber layer is continuously formed without being cut in the groove portion, so that the physical properties are not degraded and the load bearing force can be maintained. This is to minimize the contact cross-sectional area between the rotor and the bearing to minimize the coefficient of friction with the whole.

Such a configuration is one of the features of the present invention that can not be implemented in conventional bush bearings.

Next, the bearing 100 according to the preferred embodiment of the present invention may form a coating layer (not shown) on the inner circumferential surface of the body part 110.

The coating layer is configured to maximize the load bearing capacity and increase the heat radiation efficiency of frictional heat.

The coating layer is formed of a polymer resin, the polymer resin is a polymer resin, polyurethane, polyamide, polyalphaolefin, vinyl, acrylic, polyacetal, polyether, polyester, polyether sulfone, polysulfide It comprises at least one selected from the group consisting of a polyimide, a polypeptide, a polyketone, a polyolefin, a polyimide, a vinylidene, a phenol and an epoxy.

And in order to maximize the load-bearing capacity of the coating layer, the polymer resin comprises nano-scale reinforced particles.

The reinforcing particles are powders of Pb, Sn, Zn, Cu, Ag and In; Oxides, nitrides, sulfides and hydroxides of Si, Ge, Ca, Al, B, Zn, Cd, Ti, Zr, Y, Ce, Sn, In, La, Fe, Cu, Ta, Nb, V, Mo and W; Carbon black; Activated carbon; And nanodiamond; It consists of at least one or more selected from the group consisting of.

Bearing 110 according to a preferred embodiment of the present invention can be configured in this way can provide a bearing 100 that can exhibit excellent performance in extreme environments, various environmental changes.

4 is a reference diagram for comparing a bearing and a conventional bearing according to a preferred embodiment of the present invention. Hereinafter, with reference to FIG. Will be described in the manufacturing method.

4A is a reference diagram for explaining the characteristics of the composite material. Interlayer Delamination (D in FIG. 4A) occurs in the middle of the composite material stacking.

And the conventional bush bearing is laminated to form a composite fiber layer as shown in Fig. 4 C and then cut to secure the dimensions.

That is, in the case of a structure requiring only the rigidity in the form of a tube, the dimensional accuracy is not high, can be wound up continuously and used without post-lamination processing.

However, bushing bearings generally do not secure dimensional accuracy by molding, so after forming a composite layer, the dimensions are secured through processing and grooves are formed through processing.

However, when the groove is formed in this manner, as shown in FIG. 4B, the composite fiber layer is broken, thereby significantly reducing physical properties.

In addition, the broken composite fiber layer accelerates the interlayer dropout phenomenon of the composite material described above.

However, the bearing 100 according to the preferred embodiment of the present invention can provide an excellent bearing 100 without deteriorating the physical properties of the composite because the composite fiber layer 200 is formed continuously without breaking along the groove circumference. .

Table 1 compares the physical properties of the bearing 100 according to the preferred embodiment of the present invention and the existing bearing including a broken fiber layer. The bearing 100 according to the preferred embodiment of the present invention has all the physical properties. It can be seen that it is overwhelmingly superior to.

Table 1

division	Fiber layer	Compressive strength (MPa)	Modulus of elasticity (GPa)	Coefficient of friction (μ)	Tensile Strength (MPa)	Shear strength (MPa)
Carbon + phenol	Disconnected (existing technology)	250	12	0.35	150	15
Carbon + phenol	Not broken (invention)	445	65	0.2	593	40
Carbon + epoxy	Disconnected (existing technology)	256	13	0.32	155	17
Carbon + epoxy	Not broken (invention)	520	62	0.15	709	63

Bearing 100 according to a preferred embodiment of the present invention is manufactured by using a method different from the existing method to form the composite fiber layer is not broken in this way.

That is, instead of the conventional simple composite fiber layer laminate molding method, the release material is applied to a mandrel having a shape corresponding to the inner circumferential surface shape of the bearing part 100 and the body part 110, and then the composite material fiber is not broken. Winding to produce the shape of the body portion (110).

Then, after molding the body portion 110 through external pressurization, the split mandrel may be separated and removed from the body portion 110 to manufacture the bearing 100.

Bearing 100 according to a preferred embodiment of the present invention can produce an excellent bearing in such a simple process.

The bearing 100 according to the preferred embodiment of the present invention is a bushing bearing as a basic object of the present invention, and a metal support layer, which is a base layer 300, is formed outside the bushing bearing and can be used as a sliding bearing. Construction machines equipped with these are also the subject of the present invention.

Hereinafter, with reference to the accompanying drawings for the embodiment of the present invention will be described in detail with respect to the composite bearing manufacturing apparatus.

The bearing manufacturing apparatus according to the present invention is based on a molding mold for molding a composite bearing, and includes an entire system including heating and pressing means including such a mold.

6 is a reference view showing the appearance of a bush bearing and sliding bearing manufacturing apparatus (hereinafter referred to as "bearing manufacturing apparatus") 400 including an unbroken composite fiber layer according to a preferred embodiment of the present invention. Bearing manufacturing apparatus 400 according to a preferred embodiment of the large body 500 and the coupling portion 600 for fixing the body portion 500 is configured.

First, the body portion 500 will be described. The body portion 500 is formed in a cylindrical shape as shown in FIG. 7 and the coupling portion at both ends of the bearing molding portion 510. Is inserted into the 600 is made of a fixing part 520 to be fixed to the body portion 500.

In addition, a bush and a sliding bearing (hereinafter, referred to as a "bearing") formed on the outer surface of the bearing molding part 510 by winding a composite material outside the bearing molding part 510 and then being cured by a resin.

Protrusions

530 and 540 are provided on the inner surface to form grooves.

The

protrusions

530 and 540 form oil lubrication grooves extending along the axial direction of the oil collecting groove forming protrusion 530 of the single groove shape and the bearing forming part 510 as shown in the arc of FIG. 7. The protrusion 540 is formed. Such protrusions will be described in detail below.

Next, the coupling part 600 is provided at the end of the support shaft 620 and the support shaft 620 as shown in Figure 8 is provided with a receiving groove 650 corresponding to the shape of the fixing part 520 It consists of a receiving portion 610.

In addition, the accommodating part 610 is provided with a screw groove 660 penetrating the accommodating part 610 in the axial direction, so that the screw groove of the fixing part 520 inserted into the accommodating part 610 (not shown). The screw is coupled to the fixing portion 520 inserted into the receiving portion 610 to be coupled.

The coupling part 600 is configured as a pair and supports the body part 500 at both ends of the body part 500.

FIG. 10 is a view illustrating a state in which the body part 500 and the coupling part 600 are connected to each other. As shown in FIG. 10, the composite material is mounted on the bearing manufacturing apparatus 400 in which the body part 500 and the coupling part 600 are coupled to each other. In more detail, the composite fiber 200 is continuously wound to form a bearing layer, and the resin is coated on the continuously wound bearing layer and cured by hardening. The inner surface of the composite fiber 200 is formed as shown in FIG. 1. An integral composite bearing 20 is formed.

After the composite bearing 100 is formed in the bearing manufacturing apparatus 400, the composite bearing 100 is separated from the body 500 after separating the coupling part 600 from the body part 500. Should be separated.

By the way, the integrated composite bearing 100 of this type is formed integrally with the oil collection groove 130 and the oil lubrication groove 140 is formed inside the oil collection groove 130 and the oil lubrication groove ( Since the 140 is engaged with the oil collection groove forming protrusion 530 and the oil lubrication groove forming protrusion 540, there is a difficulty in that it cannot be separated from the bearing manufacturing apparatus 400 without changing the shape of the composite bearing 100.

That is, the composite bearing 100 can be separated from the bearing manufacturing apparatus 400 only by increasing the diameter of the composite bearing 100 by cutting the composite bearing 100 in the axial direction or by using an external force. In this case, the function of the composite bearing 100 Causes serious damage to.

Accordingly, the present invention is formed in a structure in which the body portion 500 of the bearing manufacturing apparatus 400 is separated in the axial direction in order to separate the composite bearing 100 from the bearing manufacturing apparatus 400 without a change in shape. It was.

That is, as shown in FIG. 9, the cylindrical body portion 500 is formed in five

separate partitions

511, 513, 515, 516, and 517 along the axial direction, and the cylindrical body portion 500 is formed. The central partition 511 forming the central portion of the center and the outer partition 513 that meshes with the central partition 511 at the lower end of the central partition 511 are tapered to each other (512, 514). Interlocking to facilitate separation.

That is, as shown in FIG. 12, since the inner cross-sectional area of the central partition 511 is smaller than the outer cross-sectional area, the central partition 511 is easily axially formed from the cylindrical body portion 500. Sliding in the direction is separated.

When the central partition 511 is separated, a space A is formed inside the cylindrical body 500, and thus the

outer partitions

513, 515, 516, and 517 of the cylindrical body 500 are formed. ) Are easily separated in the space A direction without changing the shape of the composite bearing.

Therefore, the bearing manufacturing apparatus 400 according to the preferred embodiment of the present invention is easy to manufacture the integral composite bearing 100 due to the partitioned and tapered engagement configuration of the cylindrical body portion 500, such as the shape change Easily detachable without

9 to 12 in the present description in order to easily explain the features of the present invention in the form of a fixed portion 620 is not shown in the cylindrical body portion 500, but the partitions are divided into two fixed ends It is provided with a shape of the divided part is provided in this way can be separated by the user holding the fixed part more easily.

Next, the bearing manufacturing apparatus 500 according to the present invention is coated on the composite fiber 200 and the composite fiber wound on the cylindrical body portion 600 in addition to the partition structure of the cylindrical body portion 600 as described above. It further includes a heating configuration and function for facilitating curing of the resin, and a configuration and function for facilitating the external discharge of surplus resin in the resin applied on the composite fiber.

That is, as shown in FIG. 13, the cylindrical body portion 500 has a structure in which a plurality of grooves are formed in the axial direction of the cylindrical body portion 500 along the circumferential direction.

The groove is a heating rod 700 for supplying heat to the cylindrical body portion 500 to heat and harden the composite fiber 200 wound on the cylindrical body portion 500 and the resin applied on the composite fiber. The heating groove 518 is inserted.

As described above, when a plurality of grooves are formed in the cylindrical body portion 500 in the axial direction of the cylindrical body portion 500 along the circumferential direction, the composite fiber 200 and the composite fiber wound around the cylindrical body portion 500 are formed. By heating and curing the applied resin to a temperature desired by the user without a temperature difference as a whole, it is possible to manufacture the composite bearing 100 having the same shape and function as a whole.

Next, in the bearing manufacturing apparatus 400 according to the preferred embodiment of the present invention, a resin discharge groove 522 is formed to facilitate external discharge of surplus resin in the resin coated on the composite fiber 200.

The resin discharge groove 522 is formed between the coupling part 600 and the body part 500 facing the coupling part 600, and the fixing part 520 is accommodated in the accommodation part 610. It is formed in a length longer than the length of the groove 550 and is provided in the form of a groove formed in the circumferential direction at the end connected to the cylindrical body portion 500.

Therefore, as the resin discharge groove 522 is formed, the composite fiber 200 is wound around the cylindrical body 500, and a pressing member (not shown) is surrounded by the outer side of the composite fiber in a state where the resin is applied to surround the composite fiber. When pressurized, the excess resin can be easily discharged to the outside, and excessive fiber is applied to the composite fiber, thereby preventing the function of the composite bearing from being degraded.

In addition, the surplus resin may be prevented from remaining on the cylindrical body portion 500 and the coupling portion 600 to harden the separation of the cylindrical body portion 500 and the coupling portion 600. .

Bearing manufacturing apparatus 10 according to a preferred embodiment of the

present invention protrusions

130 and 140 corresponding to the shape of the oil lubrication groove 26 and the oil collection groove 24 on the outside of the cylindrical body portion 100 Is configured to be able to easily form an oil lubrication groove 26 and the oil collection groove 24 in the composite bearing 20 in one piece.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

Claims

Cylindrical body portion formed of a composite material and

It includes a plurality of grooves formed inside the cylindrical body portion

The composite fiber layer forming the cylindrical body portion is a bush and a sliding bearing formed continuously without being cut along the plurality of grooves.
The method of claim 1,

The plurality of grooves are bushings and sliding bearings, characterized in that the oil supply grooves extending along the inner peripheral surface of the cylindrical body portion and the collecting groove formed on the inner peripheral surface of the cylindrical body portion.
The method of claim 2,

The lubrication groove is formed in a zigzag shape along the inner circumferential surface of the cylindrical body portion, one end is wider than the width of the lubrication groove, the oil supply portion is formed to be opened to the outside and the other end is formed in a closed shape bush and sliding bearing.
The method of claim 2,

The collection groove has a bush and sliding bearing, characterized in that the area is narrow in the direction of rotation of the rotating body rotating on the inner peripheral surface of the body portion.
The method of claim 1,

The bush and the sliding bearing, characterized in that the plurality of grooves are formed to be tapered along the depth direction.
The method of claim 1,

Bushing and sliding bearing, characterized in that the entire groove area occupies more than 20% of the total area of the inner peripheral surface of the cylindrical body portion.
The method of claim 1,

The cylindrical body portion bush and sliding bearing, characterized in that to form a continuous winding of the composite fiber in a mandrel formed with a plurality of grooves.
The method of claim 1,

Bushing and sliding bearing, characterized in that the cylindrical body portion inner groove and the portion is not formed with the same physical strength.
The method of claim 1,

Bushing and sliding bearing, characterized in that the coating layer is formed on the inner peripheral surface of the cylindrical body portion.
Construction and industrial machinery comprising the bush bearing of any one of claims 1 to 9.
Cylindrical metal support layers;

A body part formed of a composite material and provided inside the metal support layer; And

It includes a plurality of grooves formed inside the body portion

The composite fiber layer forming the body portion is bush and sliding bearings are formed continuously without being cut along the plurality of grooves.
It includes a cylindrical body portion having a divided structure divided into a plurality along the axial direction,

At least one of the partitions has an axially tapered shape and the partitions forming the cylindrical shape are separated stepwise along the tapered shape,

Bushing and sliding bearing formed by the composite material is wound through the heating or pressing process to the body portion is separated from the body portion without changing the shape of the bush and sliding bearing manufacturing apparatus.
The method of claim 12,

The divider is formed of a central divider that forms a central portion of the body portion and an outer divider that forms a cylindrical outer shape surrounding the outer side of the central divider and the central divider.

The body portion formed with the bush and the sliding bearing on the outside is separated from the bush and the sliding bearing in the direction of the inner space portion by forming a space inside the body portion by separating the central partition is slid outward along the axial direction. Bush and sliding bearing manufacturing apparatus characterized in that.
The method of claim 12,

Bushing and sliding bearing manufacturing apparatus characterized in that the partition is formed in the heating groove along the axial direction inside the heating groove is inserted into the heating groove to heat the composite material wound on the body portion.
The method of claim 12,

Both ends of the body portion bush and sliding bearing manufacturing apparatus characterized in that the coupling portion for supporting the partitions forming the body portion is provided.
The method of claim 12,

Bushing and sliding bearing manufacturing apparatus between the body portion and the coupling portion is characterized in that the resin discharge groove for discharging the resin used to form the bush and the sliding bearing to the outside is formed.
The method of claim 12,

Bushing and sliding bearing manufacturing apparatus, characterized in that the plurality of groove-shaped protrusions formed on the bush and the sliding bearing surface is formed continuously along the outer surface of the partitions on the outer surface of the partitions.