KR20110106045A - Combination structure of rotor-coupling of dry type vacuum pump for brake - Google Patents

Combination structure of rotor-coupling of dry type vacuum pump for brake Download PDF

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Publication number
KR20110106045A
KR20110106045A KR1020100025251A KR20100025251A KR20110106045A KR 20110106045 A KR20110106045 A KR 20110106045A KR 1020100025251 A KR1020100025251 A KR 1020100025251A KR 20100025251 A KR20100025251 A KR 20100025251A KR 20110106045 A KR20110106045 A KR 20110106045A
Authority
KR
South Korea
Prior art keywords
coupling
rotor
vacuum pump
hole
brake
Prior art date
Application number
KR1020100025251A
Other languages
Korean (ko)
Inventor
성백철
Original Assignee
주식회사 성도테크
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 성도테크 filed Critical 주식회사 성도테크
Priority to KR1020100025251A priority Critical patent/KR20110106045A/en
Publication of KR20110106045A publication Critical patent/KR20110106045A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/14—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The present invention relates to a rotor coupling coupling structure of a dry vacuum pump for a brake, and more particularly, a brake that can prevent the rotor of a vacuum pump made of carbon material from being damaged and also greatly improve the life of the vacuum pump. It relates to a rotor coupling coupling structure of a dry vacuum pump.
An object of the present invention is to prevent the breakage of the rotor by preventing the load from being concentrated only on a part of the rotor even if the forward rotation in a state where a large load is applied to the carbon material rotor and the load is dispersed To provide a rotor coupling coupling structure of a dry vacuum pump.
In order to realize the above object, the present invention provides a coupling hole 2 formed in the rotor 1 made of carbon, and a protrusion groove 3 extending from the coupling hole 2 and symmetrically formed. And a fixing protrusion 4 formed to be inserted into the coupling hole 2 and inserted into the protrusion groove 3 on the outer circumferential surface thereof and configured to transmit rotational force while being in surface contact with the shaft hole 5 at the center thereof. And a coupling 7 having a surface portion 6 formed in the shaft hole 5, and a cut surface formed in the motor shaft 8 so as to be in close contact with the surface portion 6 while being inserted into the shaft hole 5 so as to transmit rotational force ( It is characterized by consisting of 9).

Description

Rotor coupling coupling structure of dry vacuum pump for brakes {COMBINATION STRUCTURE OF ROTOR-COUPLING OF DRY TYPE VACUUM PUMP FOR BRAKE}

The present invention relates to a rotor coupling coupling structure of a dry vacuum pump for a brake, and more particularly, a brake that can prevent the rotor of a vacuum pump made of carbon material from being damaged and also greatly improve the life of the vacuum pump. It relates to a rotor coupling coupling structure of a dry vacuum pump.

In general, a vacuum suction force is used for various purposes in automobiles, the vacuum suction force is generated in a vacuum pump directly connected to the power shaft of the engine or a vacuum pump connected to the generator.

The vacuum pump is configured by installing a pump rotor on the shaft of the generator receives power from the engine, the vane installed in the pump rotor is configured to generate a vacuum suction force while rotating in the housing.

The vacuum pump is mounted on a diesel or gasoline vehicle equipped with an engine, and supplies lubricating oil to reduce friction during rotation.

However, since the electric vehicle currently being developed does not have an engine and thus cannot use the vacuum pump, a so-called dry vacuum pump, which is operated by a motor and does not need to supply lubricant, has been developed.

The dry vacuum pump is configured to couple the vacuum pump to the motor housing and to rotate the vacuum pump by the motor shaft, and the vane and the rotor use carbon material that does not require the supply of lubricating oil.

In addition, a coupling made of metal is used to couple the carbon rotor and the metal shaft that are weak to stress. The coupling is inserted into the shaft hole formed in the rotor, and the motor shaft is pressed into the coupling. Done.

That is, when a coupling made of metal is inserted into the rotor made of carbon and the motor shaft is press-fitted thereto, the rotor rotates as the motor shaft rotates to form a vacuum pressure.

However, when the rotary shaft and the rotor of the motor are press-coupled as described above, the coupling is often made of metal and the rotor is made of carbon, and thus the rotor is often damaged. In the durability test to take a very large force, there is a problem that the damage of the rotor increases.

Accordingly, an object of the present invention is to solve the above problems, by preventing the load from being concentrated only on a part of the rotor even if the forward rotation in a state where a large load is applied to the carbon material rotor, the load is dispersed, To provide a rotor coupling coupling structure of a dry vacuum pump for a brake to prevent the breakage of.

In order to realize the above object, the present invention is a coupling hole formed in the rotor made of carbon material, a protrusion groove which is formed to extend from the coupling hole and is formed to be symmetric with each other, and is formed to be inserted into the coupling hole and the outer peripheral surface A fixing protrusion configured to be inserted into the protrusion groove to transmit the rotational force while being in surface contact, and a shaft hole is formed at the center thereof, and a coupling having a surface portion in the shaft hole; Characterized in that the cut surface formed on the motor shaft.

As described above, the present invention is coupled to the surface contact when the carbon rotor and the metal coupling and the motor shaft in the dry vacuum pump used to supply the vacuum pressure to the brake of the electric vehicle, such that the transmission of rotational force is effective. In addition, there is an advantage that can improve the life of the vacuum pump by preventing the damage of the weak rotor.

1 is an exploded perspective view showing a rotor coupling coupling structure of a dry vacuum pump for a brake according to the present invention;
2 is a cross-sectional view showing a state in which a rotor, a coupling, and a motor shaft are coupled to each other in FIG. 1;
3 is a cross-sectional view showing a vacuum pump in which the rotor and coupling of FIG. 1 are assembled;

1 and 2 are exploded perspective and assembly cross-sectional views showing a rotor coupling coupling structure of a dry vacuum pump for a brake according to the present invention, and a coupling hole (2) formed in the center of the rotor (1) made of carbon; The protrusion groove 3 is formed to extend from the coupling hole 2 and is formed to be symmetrical with each other, and is formed to be inserted into the coupling hole 2 and is fitted into the protrusion groove 3 on the outer circumferential surface thereof so as to be in surface contact. In addition, the fixed protrusion 4 is formed, and the shaft hole 5 is formed at the center thereof, and the coupling hole 7 having the surface portion 6 is formed in the shaft hole 5 and the surface portion being inserted into the shaft hole 5. It consists of a cutting surface 9 formed in the motor shaft 8 so as to be in close contact with (6).

That is, since the coupling 7 and the rotor 1 are coupled by the two fixing protrusions 4 and the protrusion grooves 3, the rotational force in the coupling 7 is dispersed and absorbed in two parts, and the forward and reverse rotation is performed. Even load is distributed evenly.

If the load applied to the rotor 1 is uniformly distributed and absorbed by the two fixing protrusions 4 and the protrusion grooves 3, the load is not concentrated in one place in the rotor 1 made of carbon material having low hardness. (1) can be prevented from being broken or broken, which can greatly improve the life of the vacuum pump.

The protrusion grooves 3 and the fixing protrusions 4 are not only formed in a curved surface but also configured to be in surface contact, thereby maximizing a load distribution effect.

In addition, as shown in FIG. 3, the coupling 7 is caught by the engaging jaw 10 of the projection groove 3 into which the fixing protrusion 4 of the coupling 7 is inserted, thereby preventing the coupling of the motor shaft 8. The coupling 7 does not fall out in the opposite direction.

Referring to the operation and effect of the present invention as described above, the rotor (vane coupling) (1) is accommodated in the pump housing (H) in order to assemble the vacuum pump, as well as the coupling (2) in the coupling hole (2) of the rotor (1). 7) will be inserted.

At this time, the fixing protrusion 4 of the coupling 7 is coupled to be inserted into the protrusion groove 3 of the rotor 1 accurately, and the fixing protrusion 4 and the protrusion groove 3 are in surface contact. To be in a state.

In this state, the motor shaft 8 is inserted into the coupling 7, and the rotational force of the motor shaft 8 is transmitted to the coupling 7 because the surface portion 6 and the cut surface 9 are in contact with each other.

As described above, when the motor shaft 8 and the coupling 7 are coupled to the surface portion 6 and the cut surface 9, assembling and disassembling are easier than the conventional indentation.

When the assembly of the rotor 1 to the pump housing (H) is completed, it is combined with the motor housing (H1) to complete the vacuum pump. When the motor (M) is operated, the motor shaft (8) and the coupling (7) Rotor 1 connected by () is rotated to generate a vacuum pressure.

At this time, the rotational force transmitted through the motor shaft (8) is transmitted to the rotor (1) through the coupling (7), two fixed when transmitting the rotational force of the coupling (7) and the rotor (1) Since the projections 4 and the projection grooves 3 are in surface contact, the rotational force is uniformly transmitted to the entire rotor 1 and dispersed and absorbed.

When the rotational force is uniformly dispersed and absorbed by the rotor 1, the rotational force (load) is not concentrated on a specific portion of the rotor 1, thereby reducing the damage of the rotor 1, which is a carbon material of low hardness, to be damaged. will be.

That is, since the load applied to the rotor 1 is distributed and the fixed protrusion 4 and the protrusion groove 3 on which the load is concentrated are in surface contact, damage to the rotor 1 due to impact during rotation can be prevented. It is.

Particularly, when the vacuum pump is tested for durability, the reverse rotation is performed at a rotational speed of 6000 rpm to 10000 rpm, and a very large load is transmitted to the two fixing protrusions 4 when turning from the forward rotation to the reverse rotation. Because of the contact, the load can be efficiently distributed and absorbed, whereby the rotor 1 can be prevented from being broken or broken.

Here, if the fixing protrusion 4 and the projection groove 3 is formed in a curved surface, the load is not concentrated in one part even when the load is transferred from the fixing protrusion 4 to the projection groove 3, the load ( Rotational force) dispersion and absorption efficiency can be improved.

1: rotor 2: coupling hole
3: protrusion groove 4: fixed protrusion
5: shaft hole 6: face
7: coupling 8: motor shaft
9: cutting surface 10: locking jaw
H: Pump housing H1: Motor housing
M: motor

Claims (2)

Coupling hole is formed in the center position and extending from the coupling hole and the rotor is made of carbon material is formed in the projection groove so as to be symmetrical with each other, formed to be inserted into the coupling hole and inserted into the projection groove on the outer circumferential surface while the surface contact force The fixing protrusion is configured to be transmitted and the shaft hole is formed in the center and the shaft hole is formed of a coupling, and the motor shaft is formed in the shaft hole is formed in the cutting surface so as to be in close contact with the surface portion while being inserted into the shaft hole to transmit the rotational force. Rotor coupling coupling structure of a dry vacuum pump for a brake. The method of claim 1,
Rotor coupling coupling structure of a dry vacuum pump for a brake, characterized in that it comprises a locking projection formed in the projection groove so that the fixing projection inserted into the projection groove.
KR1020100025251A 2010-03-22 2010-03-22 Combination structure of rotor-coupling of dry type vacuum pump for brake KR20110106045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100025251A KR20110106045A (en) 2010-03-22 2010-03-22 Combination structure of rotor-coupling of dry type vacuum pump for brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100025251A KR20110106045A (en) 2010-03-22 2010-03-22 Combination structure of rotor-coupling of dry type vacuum pump for brake

Publications (1)

Publication Number Publication Date
KR20110106045A true KR20110106045A (en) 2011-09-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014086338A1 (en) * 2012-12-04 2014-06-12 Ixetic Bad Homburg Gmbh Electric motor-driven motor-vehicle vacuum pump, and drive shaft for a motor-vehicle vacuum pump
CN109026694A (en) * 2018-08-31 2018-12-18 珠海格力节能环保制冷技术研究中心有限公司 Rotating assembly and compressor with it
EP3913224A1 (en) * 2020-05-22 2021-11-24 LG Electronics Inc. Rotary compressor
US11530612B2 (en) 2020-03-25 2022-12-20 Lg Electronics Inc. Rotary compressor
US11578724B2 (en) 2020-03-25 2023-02-14 Lg Electronics Inc. Rotary compressor
US11703055B2 (en) 2020-05-22 2023-07-18 Lg Electronics Inc. Rotary compressor including a bearing containing an asymmetrical pocket to improve compressor efficiency
US11746783B2 (en) 2020-07-03 2023-09-05 Lg Electronics Inc. Rotary compressor
KR20230151307A (en) 2022-04-25 2023-11-01 주식회사 엠에스티 The assembly of pump

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160032926A1 (en) * 2012-12-04 2016-02-04 Magna Powertrain Bad Homburg GmbH Electric motor-driven motor-vehicle vacuum pump, and drive shaft for a motor-vehicle vacuum pump
US10288067B2 (en) 2012-12-04 2019-05-14 Magna Powertrain Bad Homburg GmbH Electric motor-driven motor-vehicle vacuum pump, and drive shaft for a motor vehicle vacuum pump
DE112013005784B4 (en) * 2012-12-04 2020-06-10 Hanon Systems Efp Deutschland Gmbh Motor vehicle motor vehicle vacuum pump and drive shaft for a motor vehicle vacuum pump
WO2014086338A1 (en) * 2012-12-04 2014-06-12 Ixetic Bad Homburg Gmbh Electric motor-driven motor-vehicle vacuum pump, and drive shaft for a motor-vehicle vacuum pump
CN109026694A (en) * 2018-08-31 2018-12-18 珠海格力节能环保制冷技术研究中心有限公司 Rotating assembly and compressor with it
CN109026694B (en) * 2018-08-31 2023-10-03 珠海格力节能环保制冷技术研究中心有限公司 Rotating shaft assembly and compressor with same
US11578724B2 (en) 2020-03-25 2023-02-14 Lg Electronics Inc. Rotary compressor
US11530612B2 (en) 2020-03-25 2022-12-20 Lg Electronics Inc. Rotary compressor
US11448216B2 (en) 2020-05-22 2022-09-20 Lg Electronics Inc. Rotary compressor
US11703055B2 (en) 2020-05-22 2023-07-18 Lg Electronics Inc. Rotary compressor including a bearing containing an asymmetrical pocket to improve compressor efficiency
EP3913224A1 (en) * 2020-05-22 2021-11-24 LG Electronics Inc. Rotary compressor
US11746783B2 (en) 2020-07-03 2023-09-05 Lg Electronics Inc. Rotary compressor
KR20230151307A (en) 2022-04-25 2023-11-01 주식회사 엠에스티 The assembly of pump

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E601 Decision to refuse application