JP2001241389A - Specific gravity adjusting vane in vane pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exchangeable vane of excellent durability and low cost capable of freely adjusting its specific gravity, and maintaining its strength, abrasion resistance, and friction resistance corresponding to each sort of vane pumps without contaminating water or air in the vane pump. SOLUTION: This vane, in a vane pump, is composed of a molded body comprising fiber-reinforced synthetic resin composite material, and a metal member 2, and the metal member 2 is integrally molded with the molded body of fiber-reinforced synthetic resin composite material to be embedded inside it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vane used for a vane pump.

[0002]

2. Description of the Related Art A vane mounted on an existing vane pump has a low specific gravity due to various factors such as abrasion and friction between the vane and the rotor, the number of rotations of the rotor, and the mounting angle of the vane groove of the rotor. Various specific gravities such as synthetic resin vanes, sintered alloys having a relatively large specific gravity, and vanes containing heavy metals such as lead are used. When replacing the vane with the endurance life of the vane attached to the existing vane pump, replacing the vane with an existing material is the best way to maintain the function of the vane pump. In the case of such a vane pump, the production of the attached vane may be stopped. When replacing such a vane whose production has been discontinued, expensive expenses are required to perform various prescription adjustments in order to adjust specific gravity and approximate characteristic values corresponding to the vane. On the other hand, when replacing vanes containing heavy metals such as asbestos or lead, the vanes cannot be replaced due to environmental protection problems, because they can contribute to the contamination of water and air inside the vane pump. The vane pump itself has to be replaced and the cost burden is large.

[0003]

SUMMARY OF THE INVENTION According to the present invention, the specific gravity of the vane can be freely adjusted, the water and air in the vane pump are not contaminated, and the strength and durability of the vane corresponding to various vane pumps are improved. Maintain wear and friction resistance,
An object of the present invention is to provide a vane which has excellent durability and can be replaced at a low cost.

[0004]

As a result of intensive studies in view of the above situation, specific gravity can be freely adjusted so as to be compatible with the type of the vane pump at the time of vane replacement of the vane pump. The present invention has been achieved by finding a low-cost vane that does not contaminate water, air, and the like inside, and has excellent wear resistance, frictional properties, and durability. That is, according to the present invention, the vane of the vane pump is composed of a molded body 1 made of a fiber-reinforced synthetic resin composite material and a metal member 2, and the metal member 2 is formed of a molded body 1 made of the fiber-reinforced synthetic resin composite material. The desired purpose could be achieved by being buried inside and integrally formed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A specific gravity adjusting vane of a vane pump according to the present invention comprises a molded body 1 made of a fiber-reinforced synthetic resin composite material (hereinafter simply referred to as a composite material) and a metal member 2 (hereinafter simply referred to as a metal material). Since the metal material 2 is buried inside the molded body 1 and integrally formed,
Various kinds of vanes set to a desired specific gravity can be easily manufactured by variously combining the type of the composite material constituting the present invention and the type of the metal material 2 and adjusting the weight ratio in advance.

[0006] The synthetic resin used for the molded article 1 comprising the composite material constituting the specific gravity adjusting vane of the present invention is desirably a phenol resin, and has a higher strength than other thermosetting resins such as epoxy, polyamino, polyimide, and polyamideimide resins. Although it has excellent overall properties such as wear resistance, heat resistance and moldability, it does not matter if a thermosetting resin having other sliding properties is used. The fiber material used for the molded article 1 made of a composite material includes carbon fiber (including pitch-based and PAN-based), aramid fiber, glass fiber, cotton cloth fiber, woven cloth, nonwoven cloth and single fiber of beaten bast fiber. Depending on the overall characteristics of the vane required by various vane pumps, the fiber can be used alone or as a composite fiber.

In the case of using a woven fabric or a non-woven fabric as the fiber material, the composite material constituting the above-described specific gravity adjusting vane is coated with a solution resin such as a phenol resin (prepreg) and pressurized with a mold. And heating to form a compact 1. On the other hand, when a single fiber is used as the fiber material, a solid powder such as a phenol resin or a resin in a solution state is kneaded with the single fiber, and the molded body 1 is formed by pressing and heating with a mold. When a single fiber is used, the metal member 2 can be embedded or buried in any shape depending on the fiber length, the fiber diameter, and the mixing ratio of the fiber and the resin. Further, the above-described composite material conforms to the food hygiene test (Food Sanitation Law, Notification of the Ministry of Health and Welfare, No. 20, 370), and does not pollute water or air. On the other hand, the material of the metal material 2 can be magnesium, which has a low specific gravity, iron, which has a high specific gravity, stainless steel, or copper. The specific gravity of the vane required by various vane pumps can be used.
It can be selected according to overall characteristics.

An embodiment of a specific gravity adjusting vane of the vane pump according to the present invention in which a metal material 2 is embedded in a molded body 1 and integrally formed will be described with reference to the accompanying drawings. 1 and 2 illustrate a specific gravity adjusting vane used for a vane pump, and FIG. 1 shows a typical perspective view of the specific gravity adjusting vane. FIG. 2 shows a cross section in which the metal material 2 is buried inside the molded body 1 and integrally formed. Fig. 2 (1), (3),
(5) and (7) are cross-sectional views taken along the line AA in FIG.
FIGS. 2 (2), (4), (6), and (8) show BB in FIG.
FIG. The composite material used in FIGS. 2 (1) and 2 (2) shows a molded article 1 molded by using one woven fiber 11 (hereinafter simply referred to as prepreg) as a fiber material.
The pressurized prepreg 11 wraps around the side of the vane,
The entire surface of the metal material 2 is buried in a laminated state at the center position of the prepreg 11 and is integrally formed.

The composite material used in FIGS. 2 (3) and 2 (4) shows a molded body 1 formed by using a plurality of prepregs 12 as a fibrous material. 11, the entire surface of the metal material 2 is buried at the center position of the laminated prepreg 12 and is integrally formed. The composite material used in FIGS. 2 (5) and (6) shows a molded body 1 formed by using the powdery fiber 13 as a fiber material, and the entire surface of the metal material 2 is located at the center of the powdery fiber 13. It is buried in and integrally formed. In the composite material used in FIGS. 2 (7) and (8), one prepreg 11 was used as a fiber material.
And the powdery fiber 13 are used in a composite manner, and the metal material 2 is disposed in the center of the vane in a state of being rolled up in the form of a laminate at the center of one prepreg 11, and the powdery fiber is disposed on the outer periphery of the vane. 1 shows a molded article 1 in which fibers 13 are arranged and molded into a multilayer shape.
Although not shown, the metal material 2 can be wrapped by a single prepreg 11 shown in FIGS. 2A and 2B, and the prepreg 11 can be folded and formed to be integrally formed. The prepregs 12 are arranged in a laminated manner on the front and back surfaces of the above, the powdery fibers 13 are provided on the inner side, and the metal material 2 is buried in the center of the powdery fibers 13 to be integrally formed. it can.

A typical example of specific gravity adjustment of the specific gravity adjustment vane of the present invention will be described. Example 1
In the case of a vane having a size of 100 mm × 16.7 mm × thickness of 4.0 mm, the metal material 2 is chamfered to 90 mm.
A stainless steel plate (specific gravity: 7.9) having a size of 1 mm × 12.7 mm × 1.0 mm in thickness is used, and the apparent density of the composite material is 1.50, as shown in FIGS.
By using one piece of carbon fiber prepreg 11 adjusted as described above, the metal material 2 was rolled up in a laminated shape and integrally formed to obtain a molded body 1 adjusted to a specific gravity of 2.60.

In a second embodiment, a metal material 2 is chamfered to a vane of the same size as in the first embodiment.
A stainless steel plate (specific gravity: 7.9) with a size of 12.7 mm x thickness of 0.8 mm is used.
As shown in (1) and (2), one carbon fiber prepreg 1 having the same apparent density as 1.
Thus, a molded article 1 adjusted to a specific gravity of 2.35 was formed by winding the metal material 2 in a laminating shape using No. 1 and integrally forming the same.

Embodiment 3 uses a copper plate specific gravity (8.96) of chamfered 148 mm × 52 mm × 8 mm size for the metal material 2 for a vane of 152 mm × 56 mm × 12 mm thickness. As shown in FIGS. 2 (3) and (4), the composite material has an apparent density of 1.65.
The carbon fiber prepreg 12 is vertically divided into two parts, and the metal material 2 is formed integrally with the metal material 2 sandwiched at a center position.
Thus, a molded article 1 adjusted to 06 could be produced.

In a fourth embodiment, a vane having a size of 113 mm × 32 mm × thickness 7 mm is chamfered 103
2 × 5 mm × 4 mm thick iron plate (7.8) is used. As shown in FIGS. 2 (5) and (6), powdered carbon with an apparent density adjusted to 1.60 is used for the composite material. The fiber 13 was used, and the powdered carbon fiber 13 was divided into two parts, and the metal material 2 was sandwiched at the center position to be integrally formed, thereby obtaining a molded body 1 adjusted to a specific gravity of 4.53.

In a fifth embodiment, a 90 mm chamfered metal plate 2 is applied to a vane of the same size as the first embodiment.
An aluminum alloy plate (2.8) with a size of × 12.7 mm × thickness of 1.0 mm is used.
As shown in (8), one sheet of aramid fiber prepreg 11 whose apparent density is adjusted to 1.30 and powdery carbon fiber 13 whose apparent density is adjusted to 1.50 are used in a composite manner. The metal material 2 is wound up in a laminated state using the fiber prepreg 11, and the powdered carbon fiber 13 is disposed on the outer periphery of the vane to integrally form the molded body 1 adjusted to a specific gravity of 1.81. I could make it.

In a sixth embodiment, a metal material 2 is chamfered to a vane of the same size as in the first embodiment.
A magnesium plate (1.74) with a size of 12.7 mm x thickness of 1.0 mm is used.
As shown in (7) and (8), one cotton fiber prepreg 11 whose apparent density was adjusted to 1.32 and one aramid fiber prepreg 1 whose apparent density was adjusted to 1.30
The metal material 2 is wound up in a laminated state using the cotton cloth fiber prepreg 11, and the aramid fiber prepreg 11 is wound up in a laminated state from above, and integrally formed. Thus, a molded article 1 adjusted to 0.39 was produced.

[0016]

The specific gravity adjusting vane of the vane pump according to the present invention is composed of a molded body 1 made of a composite material and a metal material 2, and the metal material 2 is buried at the center of the molded body 1 made of the composite material. Since they are integrally formed, the weight ratio of the molded body 1 made of the composite material and the metal material 2 constituting the present invention is adjusted in advance to approximate the specific gravity of the vane attached to the existing vane pump. By doing so, various vanes set to a desired specific gravity can be easily manufactured, and can be used not only for replacing existing vanes but also as vanes for new vane pumps. In addition, when the specific gravity of the vane of the vane pump is in the range of about 2.5 to 5.0, an iron plate can be used for the metal material 2 and a low-cost specific gravity adjusting vane can be provided. Further, when a tough fiber having a small specific gravity and sliding characteristics is developed, the present invention can provide a specific gravity adjusting vane which is further reduced in weight.

On the other hand, since the specific gravity adjusting vane of the vane pump of the present invention covers the entire surface of the vane with the molded article 1 made of the composite material, the vane protrudes from the vane groove of the rotor because the coefficient of friction and the wear coefficient are small. The speed could be increased and the wear resistance of the vane grooves of the rotor could be improved. Therefore, it was found that the vane pump was useful not only for maintaining the function but also for improving the function. Further, since the metal material 2 is buried in the center of the molded article 1 made of the composite material, the metal material 2 plays a role of reinforcing the strength and has an advantage that the mechanical strength is higher than that of the synthetic resin vane. Was.

[Brief description of the drawings]

FIG. 1 shows a typical perspective view of a specific gravity adjusting vane.

[Fig. 2]

1 shows a sectional view of FIG.

FIG. 2 shows (1)

FIG. 1 is a cross-sectional view taken along the line AA, showing a molded body 1 formed by using a single prepreg 11 for a composite material. A metal material 2 is wound around the prepreg 11 and buried in the center of the molded body 1 2 shows a cross section integrally formed.

FIG. 2 shows (2)

FIG. 1 is a cross-sectional view taken along the line BB, showing a molded body 1 formed by using a single prepreg 11 for a composite material. A metal material 2 is wound around the prepreg 11 and buried in the center of the molded body 1 2 shows a cross section integrally formed.

FIG. 2 (3)

FIG. 1 is a cross-sectional view taken along a line AA, showing a molded body 1 formed by using a plurality of prepregs 12 on a composite material,
Shows a cross-section buried at the center position of the laminated prepreg 12 molded body 1 and integrally formed.

FIG. 2 (4)

FIG. 1 is a cross-sectional view taken along a line BB, showing a molded body 1 formed by using a plurality of prepregs 12 on a composite material,
Shows a cross section formed by being buried at the center position of the molded body 1 of the laminated prepreg 12 and integrally formed.

FIG. 2 (5)

FIG. 1 is a cross-sectional view taken along the line AA, in which a powdery fiber 13 is added to the composite material.
FIG. 1 shows a molded body 1 formed by using a metal material 2, and shows a cross section in which a metal material 2 is buried in a central position of the molded body 1 of powdery fibers 13 and is integrally formed.

FIG. 2 (6)

FIG. 1 is a cross-sectional view taken along a line BB.
Fig. 1 shows a molded body 1 formed by using a metal material 2
2 shows a cross-section buried at the center position of the and integrally formed.

FIG. 2 (7)

FIG. 1 is a cross-sectional view taken along line AA of FIG. 1, showing a molded body 1 formed by using a single prepreg 11 and a powdery fiber 13 in a composite material. Is wound into the prepreg 11 and the outer periphery of the molded body 1
FIG. 2 shows a cross-section in which the metal material 2 is embedded in the molded body 1 and integrally formed.

FIG. 2 (8)

FIG. 1 is a cross-sectional view taken along the line BB of FIG. 1, showing a molded body 1 formed by using a single prepreg 11 and a powdery fiber 13 in a composite material. Is wound into the prepreg 11 and the outer periphery of the molded body 1
FIG. 2 shows a cross-section in which the metal material 2 is embedded in the molded body 1 and integrally formed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Molded body made of composite material 11 ... Composite material made of one prepreg 12 ... Composite material made of a plurality of prepregs 13 ... Composite material made of powdery fiber 2 ...・ Metal material

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[Procedure amendment]

[Submission date] March 22, 2000 (200.3.2)
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a typical perspective view of a specific gravity adjusting vane. FIG.
Shows a sectional view of FIG. FIG. 2 (1) is a sectional view taken on line AA of FIG.
FIG. 1 is a cross-sectional view showing a compact 1 formed by using a single prepreg 11 for a composite material.
FIG. 2 is a cross-sectional view formed by being rolled up and buried in a central position of the molded body 1 to be integrally formed. FIG. 2 (2) is a cross-sectional view of FIG.
FIG. 1 is a cross-sectional view showing a compact 1 formed by using a single prepreg 11 for a composite material.
FIG. 2 is a cross-sectional view formed by being rolled up and buried in a central position of the molded body 1 to be integrally formed. FIG. 2 (3) is a sectional view taken on line AA of FIG.
FIG. 1 is a cross-sectional view showing a molded body 1 formed by using a plurality of prepregs 12 on a composite material. A metal material 2 is buried at a central position of the molded body 1 made of a laminated prepreg 12 and integrally formed. FIG. FIG. 2 (4) is a diagram of FIG.
FIG. 1B is a cross-sectional view showing a molded body 1 formed by using a single prepreg 12 in a composite material, and a metal material 2 is buried at a central position of the molded body 1 made of a laminated prepreg 12 and integrally formed. The sectional view formed is shown. FIG. 2 (5) is a cross-sectional view taken along the line AA of FIG. 1 and shows the molded body 1 formed by using the powdery fibers 13 for the composite material. FIG. 2 shows a sectional view buried in a central position and integrally formed. FIG. 2 (6) is a cross-sectional view taken along the line BB of FIG.
FIG. 2 is a cross-sectional view showing a state in which the metal material 2 is buried at a central position of the molded body 1 made of the powdery fibers 13 and integrally formed. FIG. 2 (7) is a cross-sectional view taken along the line AA of FIG. 1, and shows a molded body 1 formed by using a single prepreg 11 and a powdery fiber 13 in a composite material. The metal material 2 is rolled into a single prepreg 11, and the outer periphery of the molded body 1 is covered with powdery fibers 13, and the metal material 2 is buried inside the molded body 1 and integrally formed. FIG. FIG.
(8) is a cross-sectional view taken along the line BB of FIG. 1, and shows a molded body 1 formed by using a single prepreg 11 and a powdery fiber 13 in a composite material. The center of the molded body 1 is The metal material 2 is rolled into a single prepreg 11, the outer periphery of the molded body 1 is covered with a powdery fiber 13, and the metal material 2 is buried inside the molded body 1 to form a cross-section. The figure is shown.

[Description of Signs] 1 ··· Molded body composed of composite material 11 ··· Composite material composed of one prepreg 12 ··· Composite material composed of multiple prepregs 13 ··· Composite composed of powdery fiber Material 2: Metallic material

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3H040 AA00 BB00 CC14 CC16 CC17 DD11 DD36 4F072 AA02 AB06 AB09 AB10 AB28 AB29 AD13 AD19 AD23 AD44 AD45 AG03 AH23 AH25 AJ04 AK14 AL16 4J002 AH002 CC041 CC151 CD001 CL062 CM041 DA016 DL016 FD016

Claims (6)

[Claims] 1. A molded body made of a fiber-reinforced synthetic resin composite material and a metal member, wherein the metal member is buried inside the molded body made of the fiber-reinforced synthetic resin composite material and integrally formed. A specific gravity adjusting vane of the vane pump formed on the vane pump. 2. The method according to claim 1, wherein the metal member is buried integrally with the molded body made of the fiber-reinforced synthetic resin composite material by insert molding into the molded body made of the fiber-reinforced synthetic resin composite material. Specific gravity adjusting vane for the described vane pump. 3. The fiber-reinforced synthetic resin composite material is made of a single woven fabric fiber (prepreg) impregnated with a synthetic resin, and is integrally formed by wrapping the entire surface of the metal member or winding it up in a laminate. The vane adjusting vane according to claim 1 or 2, wherein the vane pump has a specific gravity. 4. The fiber-reinforced synthetic resin composite material comprises a plurality of woven fibers (prepregs) impregnated with a synthetic resin.
The specific gravity adjusting vane of a vane pump according to claim 1 or 2, wherein a metal member is disposed at a central position of the plurality of woven fabric fibers (prepregs) and is integrally formed in a laminated shape. 5. The fiber-reinforced synthetic resin composite material is a mixture of at least two kinds of synthetic resin-impregnated granular fibers or flake fibers or powder fibers or granular fibers, flake fibers, powder fibers, and woven fibers. The specific gravity adjusting vane for a vane pump according to claim 1 or 2, wherein the vane pump is made of a fiber, and a metal member is disposed at the center of the fiber and integrally formed. 6. The specific gravity of a vane formed of a molded body made of a fiber-reinforced synthetic resin composite material and a metal member and integrally formed is adjusted to 1.4 to 6.0. A vane adjusting vane according to claim 4 or 5.