KR101237402B1 - Non-seal magnetic drive gear pump - Google Patents

Abstract

PURPOSE: A non-seal magnetic driving gear pump is provided to arrange a gasket in the interface between a first housing unit and a housing cover which are joined to each other so that an end clearance between a driving gear rotor and a housing cover is determined by the gasket. CONSTITUTION: A non-seal magnetic driving gear pump includes a first housing unit(10) and a second housing unit which are connected to each other by a connecting casing. A driving gear rotor(40) is arranged inside the first housing unit. An idle gear(50) is arranged inside the driving gear rotor so that the center of the rotation of the idle gear is arranged eccentric from the center of rotation of the driving gear rotor. A bypass hole(16) is punched in a lateral side of an outlet(14) of the first housing. Some of fluid discharging through the outlet is supplied to between a driven magnetic rotor and a canister(90) through the bypass hole so that the driven magnetic rotor is cooled by the fluid. A hollow portion(62) is formed in a first shaft(60) so that the fluid filled with the fluid is discharged to the first housing unit through the hollow portion.

Description

NON-SEAL MAGNETIC DRIVE GEAR PUMP}

The present invention relates to a non-seal magnetic drive gear pump, and more specifically, a bypass hole is drilled in the discharge port side of the first housing, so that some of the fluid discharged through the discharge hole is introduced into the canister through the bypass hole. By being supplied, the driven magnetic rotor is cooled by the supplied fluid, a hollow portion is formed in the first shaft, and the fluid filled in the driven magnetic rotor is discharged into the first housing through the hollow portion, whereby the fluid continues to circulate. And a non-seal magnetic drive gear pump capable of cooling the driven magnetic rotor and the first shaft.

Republic of Korea Patent No. 10-0836698 (registered June 3, 2008) "magnetic drive gear pump" is introduced.

The magnetic drive gear pump includes a pump housing having at least one inlet and at least one outlet, a rotatable annular magnetic drive assembly disposed in the pump housing and having a recess at one end, An annular canister having a recess at one end, an annular drive magnet and rotor gear assembly having a magnetic portion disposed in the recess of the annular canister, and first and second shaft portions. an offset stationary shaft having a portion,

At least a portion of the canister is disposed in a recess of the rotatable annular magnetic drive assembly, is sealingly coupled with the pump housing, the magnet portion is magnetically aligned with the rotatable annular magnetic drive assembly, and the first shaft portion The longitudinal axis is spaced parallel to the longitudinal axis of the second shaft portion, and when the rotatable annular magnetic drive assembly is rotated, the annular drive magnet and the rotor gear assembly are rotated about the first shaft portion of the offset stationary shaft, The rotor gear drives an idler gear that is rotated about the second shaft portion of the offset stationary shaft.

However, the magnetic drive gear pump has described a detailed technique for cooling the heat generated in the magnet, and does not solve the problem of end clearance and the wear of the rotor gear by friction.

Accordingly, an object of the present invention is that a bypass hole is drilled in the discharge port side of the first housing so that some of the fluid discharged through the discharge hole is supplied into the canister through the bypass hole, whereby the driven magnetic rotor is supplied by the supplied fluid. Is cooled, and a hollow portion is formed in the first shaft, and the fluid filled in the driven magnetic rotor is discharged through the hollow portion into the first housing, whereby the fluid is continuously circulated to cool the driven magnetic rotor and the first shaft. It is to provide a non-seal magnetic drive gear pump.

In addition, a friction plate made of a high heat-resistant material is attached to the rear surface of the drive gear rotor for another object of the present invention, and the carbon sleeve bearing is mounted in the shaft hole of the housing into which the drive gear rotor shaft is fitted, so that the friction plate has an end portion of the carbon sleeve bearing. In close contact with the present invention, a non-seal magnetic drive gear pump can be prevented from being deformed or worn by the friction between the drive gear rotor and the housing.

Still another object of the present invention is to provide a non-seal magnetic drive gear pump in which an end clearance between the drive gear rotor and the housing cover is determined by the gasket by arranging the gasket between the engagement surface of the first housing and the housing cover. It is.

Non-seal magnetic drive gear pump according to the present invention for achieving the above object is the first housing and the second housing is connected by a connecting casing, the drive gear rotor is disposed inside the first housing, the drive gear An idle gear is disposed inside the rotor, the rotation center of the idle gear is eccentrically disposed at the rotation center of the drive gear rotor, one end of the first shaft is connected to the center of the drive gear rotor, and a driven magnetic rotor is connected to the first shaft. Is mounted, a driving magnetic rotor is disposed inside the second housing, a driven magnetic rotor is disposed inside the driving magnetic rotor, a cup-shaped canister is disposed between the driven magnetic rotor and the driving magnetic rotor, and a circle of the canister The inside of the canister, which is fitted with a rim of the connecting housing of the first housing and the connecting casing, covers the driven magnetic rotor. You are sealed and one end is connected to a second shaft for driving the magnetic rotor - in the seal magnetic drive gear pump,

Bypass holes are drilled in the discharge port side of the first housing, and a part of the fluid discharged through the discharge holes is supplied between the driven magnetic rotor and the canister through the bypass holes, and is supplied into the canister, whereby the driven magnetic rotor is supplied by the fluid. Is cooled, and a hollow portion is formed in the first shaft, and the fluid filled in the driven magnetic rotor is discharged into the first housing through the hollow portion.

A friction plate made of high heat-resistant material is fixed to the rear surface of the drive gear rotor by bolts, and a carbon sleeve bearing is mounted in the shaft hole of the first housing in which the first shaft is fitted, so that the friction plate is in close contact with the end of the carbon sleeve bearing. It is characterized by.

Alternatively, the rotor body of the drive gear rotor is thick enough to be in close contact with the inner surface of the first housing in which the shaft hole is formed, the back of the drive gear rotor is chrome coated, the first shaft is fitted 1 is characterized in that the carbon sleeve bearing is mounted in the shaft hole of the housing.

In yet another alternative, the rotor body of the drive gear rotor is thick enough to be in close contact with the inner surface of the first housing in which the shaft hole is formed, and the perturbing ring in the shaft hole of the drive gear rotor into which the tip of the first shaft is fitted. The insert is characterized in that the carbon sleeve bearing is mounted in the shaft hole of the first housing into which the first shaft is fitted.

The friction plate is characterized in that it is made of any one of tungsten or ceramic material.

The friction plate is characterized in that the perturbation ring is inserted into the inner peripheral surface.

The perturbation ring is made of any one material of tungsten or ceramic material.

In addition, the non-seal magnetic drive gear pump according to the present invention has a housing cover attached to the first housing by bolts, and the idle gear on a fixed shaft installed in the housing cover so that the idle gear is disposed inside the drive gear rotor. Is mounted, the bushing is arranged between the fixed shaft and the idle gear, the idle gear can be rotated by the drive gear rotor, and the gasket is arranged between the engaging surface of the first housing and the housing cover, thereby being driven by the gasket. Characterized in that the end clearance between the gear rotor and the housing cover is determined.

The gasket is made of a Teflon material, the hollow portion is formed in the disc, a plurality of bolt holes are formed between the inner peripheral surface and the outer peripheral surface, characterized in that the thickness is 0.1mm.

Thereby, the non-seal magnetic drive gear pump according to the present invention can cool the driven magnetic rotor and the first shaft while the fluid continues to circulate, and the inner surfaces of the drive gear rotor and the housing are deformed or worn by friction. It can be prevented, and the gasket is disposed between the engaging surface of the first housing and the housing cover, there is an effect that the drive gear rotor can be rotated smoothly without interference by the gasket.

1 is a cross-sectional view showing a non-seal magnetic drive gear pump according to the present invention.
Figure 2 is a cross-sectional view taken along line AA of Figure 1 showing a non-seal magnetic drive gear pump according to the present invention.
3 is a cross-sectional view taken along line BB of FIG. 1 showing a non-seal magnetic drive gear pump according to the present invention.
4 is an exploded perspective view showing the drive gear rotor and the first housing mounted on the first shaft to explain the frictional relationship between the drive gear rotor and the inner surface of the first housing;
5 is an exploded perspective view showing the drive gear rotor and the first housing mounted on the first shaft in order to explain another friction relationship between the drive gear rotor and the inner side surface of the first housing;
6 is an exploded perspective view showing the drive gear rotor and the first housing mounted on the first shaft to explain another frictional relationship between the drive gear rotor and the inner surface of the first housing;
FIG. 7 is an enlarged detailed view of a part (a) of FIG. 1;
8 is a perspective view of a gasket;

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

1 and 2, in the non-seal magnetic drive gear pump according to the present invention, the first housing 10 and the second housing 20 are connected by a connecting casing 30, and the first housing 10 ), The drive gear rotor 40 is disposed inside the drive gear rotor 40, and the idle gear 50 is disposed inside the drive gear rotor 40, so that the rotation center O2 of the idle gear 50 is the drive gear rotor 40. Disposed eccentrically at the center of rotation (O1), one end of the first shaft (60) is connected to the center of the drive gear rotor (40), and a driven magnetic rotor (70) is mounted to the first shaft (60), The driving magnetic rotor 80 is disposed inside the second housing 20, and the driven magnetic rotor 70 is disposed inside the driving magnetic rotor 80, and the driven magnetic rotor 70 and the driving magnetic rotor 80 are disposed. The cup-shaped canister 90 is disposed between the two ends, and the circumferential rim 92 of the canister 90 is connected to the first housing 10 and the connecting casing 30. Is attached to the unit, the interior of the canister 90 to cover the driven magnetic rotor 70 is closed, and one end of a second shaft 100 coupled to the driving magnetic rotor 80.

In the non-seal magnetic drive gear pump according to the present invention configured as described above, when the second shaft 100 rotates by external power, the external magnetic rotor 80 mounted on one end of the second shaft 100 rotates. The driven magnetic rotor 70 disposed inside the canister 90 is rotated by the magnetic force of the outer magnetic rotor 80, and the first shaft 60 is rotated by the driven magnetic rotor 70. And the drive gear rotor 40 disposed inside the first housing 10 by the first shaft 60 rotates, and the idle gear 50 installed in the drive gear of the drive gear rotor 40 inwards. By rotating along the drive gear rotor 40, as shown in FIG. 2, the fluid is sucked into the inlet 12 of the first housing 10, and the sucked fluid is discharged to the outlet 14.

Referring to FIG. 3, in the non-seal magnetic drive gear pump according to the present invention as described above, the bypass hole 16 is drilled in the side of the discharge port 14 of the first housing 10, and the discharge hole 14 is provided. Some of the fluid discharged through the through hole 16 is supplied between the driven magnetic rotor 70 and the canister 90, and is supplied to the inside of the canister 90, whereby the driven magnetic rotor 70 is supplied by the fluid. Is cooled, and the hollow part 62 is formed in the first shaft 60, and the fluid filled in the driven magnetic rotor 70 is discharged into the first housing 10 through the hollow part 62. .

As described above, according to the present invention, a part of the fluid discharged by the pumping pressure generated in the discharge port 14 during the pumping process is supplied with the fluid into the canister 90 through the bypass hole 16, thereby driving the driven magnetic rotor ( By cooling the 70, the overdriven magnetic rotor 70 and the driving magnetic rotor 80 can be prevented from being overheated, and the fluid cooling the driven magnetic rotor 70 has a hollow portion (1) of the first shaft 60. By being discharged back into the interior of the first housing 10 through 62, the fluid in the canister 90 continues to circulate.

3 and 4, the friction plate 110 of a high heat-resistant material is fixed to the rear surface of the drive gear rotor 40 by the bolt 116, and the first shaft 60 is fitted. 1 The carbon sleeve bearing 120 is attached to the shaft hole 18 of the housing 10 so that the friction plate 110 is in close contact with the end of the carbon sleeve bearing 120.

The friction plate 110 is formed of any one of tungsten or ceramic material.

Alternatively, the friction plate 110 is a perturbation ring 114 made of any one of tungsten or ceramic material is bonded to the inner peripheral surface of the body 112.

In general, for self-suction, the rear surface of the drive gear rotor 40 is in close contact with the inner surface 19 of the first housing 10 in which the shaft hole 18 is formed. When the drive gear rotor 40 is rotated by the first shaft 60 in this state, heat is generated on the inner surface 19 of the drive gear rotor 40 and the first housing 10 by friction. By doing so, the drive gear rotor 40 and the inner surface 19 of the first housing 10 may be not only severely worn but also deformed. In particular, since heat is severely generated near the corners close to the first shaft 40, as shown in FIGS. 3 and 4, a friction plate 110 of a high heat-resistant material is attached to the rear surface of the drive gear rotor 40. And the carbon sleeve bearing 120 is fitted into the shaft hole 18 so that the friction plate 110 and the carbon sleeve bearing 120 withstand the friction, so that the drive gear rotor 40 is deformed by the frictional heat or the drive gear rotor Severe wear of the inner surface 19 of the 40 and the first housing 10 can be prevented.

Referring to FIG. 5, in another alternative, the rotor body 41 of the drive gear rotor 40 may be in close contact with the inner surface 19 of the first housing 10 in which the shaft hole 18 is formed. The carbon sleeve bearing 120 has a thickness t2 and is formed in the shaft hole 18 of the first housing 10 in which the rear surface 42 of the drive gear rotor 40 is chrome coated and the first shaft 60 is fitted. ) Is mounted.

Thereby, even if the back surface 42 of the drive gear rotor 40 is in close contact with the carbon sleeve bearing 120 and rotates for self-absorption, it can withstand frictional heat by chromium coating.

Referring to FIG. 6, in another alternative, the rotor body 41 of the drive gear rotor 40 may be in close contact with the inner surface 19 of the first housing 10 in which the shaft hole 18 is formed. The perturbing ring 114 is inserted into the shaft hole 43 of the drive gear rotor 40 having a thickness t2 of which the tip of the first shaft 60 is fitted, and the first shaft 60 is fitted. The carbon sleeve bearing 120 is mounted in the shaft hole 18 of the first housing 10.

The perturbation ring 114 is made of any one of tungsten or ceramic material.

1, 7 and 8, the housing cover 130 is attached to the bolt 135 to the first housing 10 such that the idle gear 50 is disposed inside the drive gear rotor 40. And an idle gear 50 is mounted on the fixed shaft 140 installed in the housing cover 130, and a bushing 145 is disposed between the fixed shaft 140 and the idle gear 50, thereby providing an idle gear ( 50 can be rotated by the drive gear rotor 40, the gasket 150 is disposed between the coupling surface of the first housing 10 and the housing cover 130, the drive gear by the gasket 150 The end clearance C1 between the rotor 40 and the housing cover 130 is determined.

The gasket 150 is made of Teflon material, the hollow portion 151 is formed in the disc, a plurality of bolt holes 152 is formed between the inner circumferential surface and the outer circumferential surface, the thickness (t1) is 0.1mm.

The end clearance C1 refers to a gap between the drive gear rotor 40 and the housing cover 130, and the end clearance is determined by the number of overlapping gaskets 150. By this end clearance C1, the drive gear rotor 40 rotates smoothly without friction.

10: first housing 20: second housing
30: connecting casing 40: drive gear rotor
50: idle gear 60: first shaft
70: driven magnetic rotor 80: driven magnetic rotor
90: second shaft

Claims (9)

The first housing 10 and the second housing 20 are connected by the connecting casing 30, the drive gear rotor 40 is disposed inside the first housing 10, and the drive gear rotor 40 An idle gear 50 is disposed therein, the rotation center O2 of the idle gear 50 is eccentrically disposed at the rotation center O1 of the drive gear rotor 40, and is located at the center of the drive gear rotor 40. One end of the first shaft 60 is connected, a driven magnetic rotor 70 is mounted to the first shaft 60, and a driving magnetic rotor 80 is disposed inside the second housing 20, thereby driving a driven magnetic. The rotor 70 is disposed inside the driving magnetic rotor 80, a cup-shaped canister 90 is disposed between the driven magnetic rotor 70 and the driving magnetic rotor 80, and a circumferential rim of the canister 90 is provided. An interior of the canister 90, 92, is mounted to the connection of the first housing 10 and the connecting casing 30 to cover the driven magnetic rotor 70. You are sealed and, with one end of a second shaft 100 coupled to the driving magnetic rotor (80) in the magnetic seal the driving gear pump,
The bypass hole 16 is drilled in the discharge hole 14 side of the first housing 10, so that some of the fluid discharged through the discharge hole 14 passes through the bypass hole 16 with the driven magnetic rotor 70. By being supplied between the canisters 90 and being supplied to the inside of the canister 90, the driven magnetic rotor 70 is cooled by the fluid, and the hollow part 62 is formed in the 1st shaft 60, and the driven magnetic rotor Non-seal magnetic drive gear pump, characterized in that the fluid filled in the interior of the 70 is discharged into the interior of the first housing (10) through the hollow portion (62).
The first housing 10 and the second housing 20 are connected by the connecting casing 30, the drive gear rotor 40 is disposed inside the first housing 10, and the drive gear rotor 40 An idle gear 50 is disposed therein, the rotation center O2 of the idle gear 50 is eccentrically disposed at the rotation center O1 of the drive gear rotor 40, and is located at the center of the drive gear rotor 40. One end of the first shaft 60 is connected, a driven magnetic rotor 70 is mounted to the first shaft 60, and a driving magnetic rotor 80 is disposed inside the second housing 20, thereby driving a driven magnetic. The rotor 70 is disposed inside the driving magnetic rotor 80, a cup-shaped canister 90 is disposed between the driven magnetic rotor 70 and the driving magnetic rotor 80, and a circumferential rim of the canister 90 is provided. An interior of the canister 90, 92, is mounted to the connection of the first housing 10 and the connecting casing 30 to cover the driven magnetic rotor 70. You are sealed and, with one end of a second shaft 100 coupled to the driving magnetic rotor (80) in the magnetic seal the driving gear pump,
The shaft plate 18 of the first housing 10 to which the friction plate 110 of a high heat-resistant material is fixed by the bolt 116 to the rear surface of the drive gear rotor 40, and the first shaft 60 is fitted. Non-seal magnetic drive gear pump, characterized in that the carbon sleeve bearing 120 is mounted, the friction plate 110 is in close contact with the end of the carbon sleeve bearing (120).
The method of claim 2,
The friction plate 110 is a non-seal magnetic drive gear pump, characterized in that made of any one material of tungsten or ceramic material.
The method of claim 2,
The friction plate 110 is a non-seal magnetic drive gear pump, characterized in that the perturbation ring (114) made of any one material of tungsten or ceramic material is bonded to the inner peripheral surface of the body (112).
The first housing 10 and the second housing 20 are connected by the connecting casing 30, the drive gear rotor 40 is disposed inside the first housing 10, and the drive gear rotor 40 An idle gear 50 is disposed therein, the rotation center O2 of the idle gear 50 is eccentrically disposed at the rotation center O1 of the drive gear rotor 40, and is located at the center of the drive gear rotor 40. One end of the first shaft 60 is connected, a driven magnetic rotor 70 is mounted to the first shaft 60, and a driving magnetic rotor 80 is disposed inside the second housing 20, thereby driving a driven magnetic. The rotor 70 is disposed inside the driving magnetic rotor 80, a cup-shaped canister 90 is disposed between the driven magnetic rotor 70 and the driving magnetic rotor 80, and a circumferential rim of the canister 90 is provided. An interior of the canister 90, 92, is mounted to the connection of the first housing 10 and the connecting casing 30 to cover the driven magnetic rotor 70. You are sealed and, with one end of a second shaft 100 coupled to the driving magnetic rotor (80) in the magnetic seal the driving gear pump,
The rotor body 41 of the drive gear rotor 40 has a thickness t2 such that the rotor body 41 can be brought into close contact with the inner surface 19 of the first housing 10 in which the shaft hole 18 is formed. The back surface 42 of the 40 is chrome coated, and the carbon sleeve bearing 120 is mounted to the shaft hole 18 of the first housing 10 into which the first shaft 60 is fitted. Seal magnetic drive gear pump.
The first housing 10 and the second housing 20 are connected by the connecting casing 30, the drive gear rotor 40 is disposed inside the first housing 10, and the drive gear rotor 40 An idle gear 50 is disposed therein, the rotation center O2 of the idle gear 50 is eccentrically disposed at the rotation center O1 of the drive gear rotor 40, and is located at the center of the drive gear rotor 40. One end of the first shaft 60 is connected, a driven magnetic rotor 70 is mounted to the first shaft 60, and a driving magnetic rotor 80 is disposed inside the second housing 20, thereby driving a driven magnetic. The rotor 70 is disposed inside the driving magnetic rotor 80, a cup-shaped canister 90 is disposed between the driven magnetic rotor 70 and the driving magnetic rotor 80, and a circumferential rim of the canister 90 is provided. An interior of the canister 90, 92, is mounted to the connection of the first housing 10 and the connecting casing 30 to cover the driven magnetic rotor 70. You are sealed and, with one end of a second shaft 100 coupled to the driving magnetic rotor (80) in the magnetic seal the driving gear pump,
The rotor body 41 of the drive gear rotor 40 has a thickness t2 such that the rotor body 41 can be in close contact with the inner surface 19 of the first housing 10 having the shaft hole 18 formed therein, and the first shaft A perturbing ring 114 is inserted into the shaft hole 43 of the drive gear rotor 40 into which the tip of the 60 is fitted, and the shaft hole 18 of the first housing 10 into which the first shaft 60 is fitted. ) Is a non-seal magnetic drive gear pump characterized in that the carbon sleeve bearing (120) is mounted.
The method according to claim 6,
The perturbation ring 114 is a non-seal magnetic drive gear pump, characterized in that made of any one material of tungsten or ceramic material.
3. The method according to claim 1 or 2,
The housing cover 130 is mounted to the first housing 10 by a bolt 135 so that the idle gear 50 is disposed inside the drive gear rotor 40, and is fixed to the housing cover 130. An idle gear 50 is mounted on the shaft 140, and a bushing 145 is disposed between the fixed shaft 140 and the idle gear 50 so that the idle gear 50 is rotated by the drive gear rotor 40. When the gasket 150 is disposed between the coupling surface of the first housing 10 and the housing cover 130, the gasket 150 may be disposed between the drive gear rotor 40 and the housing cover 130. Non-seal magnetic drive gear pump characterized in that the end clearance (C1) is determined.
The method of claim 8,
The gasket 150 is made of a Teflon material, the hollow portion 151 is formed in the disc, a plurality of bolt holes 152 is formed between the inner circumferential surface and the outer circumferential surface, characterized in that the thickness (t1) is 0.1mm Non-seal magnetic drive gear pump.

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