CN204610356U - Heat pump compressor - Google Patents
Heat pump compressor Download PDFInfo
- Publication number
- CN204610356U CN204610356U CN201520113515.2U CN201520113515U CN204610356U CN 204610356 U CN204610356 U CN 204610356U CN 201520113515 U CN201520113515 U CN 201520113515U CN 204610356 U CN204610356 U CN 204610356U
- Authority
- CN
- China
- Prior art keywords
- angular contact
- contact ball
- bearing
- ball bearings
- spacer ring
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Rolling Contact Bearings (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Support Of The Bearing (AREA)
Abstract
The utility model provides a kind of heat pump compressor, and it is easy formation, and can prevent the early stage stripping damage of bearing.Multiple bearings (10) of supporting rotating shaft (5) have and clip fixed side bearing (11) and the free side bearing (13) that speed increasing mechanism 7 is arranged on axial both sides.Fixed side bearing (11) has mutually across inner ring spacer ring (19a, 19b) and adjacent 3 angular contact ball bearings (11a, 11b, 11c) of outer ring spacer ring (20a, 20b), in 3 angular contact ball bearings, 2 angular contact ball bearings (11a, 11b) adjacent with speed increasing mechanism 7 side are arranged in series, and 2 angular contact ball bearings (11b, 11c) adjacent with opposite side are back-to-back configurations.Between 2 angular contact ball bearings (11a, 11b) of arranged in series, the axis width L of outer ring spacer ring (20a) is less than the axis width M of inner ring spacer ring (19a).
Description
Technical field
The utility model relates to a kind of heat pump compressor.
Background technique
Such as in mansion, factory etc., construct jumbo heat-exchange system comparatively speaking, in this heat-exchange system, be equipped with various heat pump compressor.Such as, in heat pump compressor 1 as shown in Figure 2, the running shaft 5 being provided with impeller (impeller) 3 is supported as rotating freely by multiple bearing 10.
Running shaft 5 links via the output shaft of speed increasing mechanism 7 with not shown motor.Speed increasing mechanism 7 comprises: gear 7a, and it is arranged on running shaft 5; And with described gear 7a meshed gears (not shown), it is arranged on the output shaft of motor.In addition, the diameter of the gear 7a of running shaft 5 is less than the diameter of the gear of the output shaft of motor.
Multiple bearing 10 has and clips speed increasing mechanism 7 and the fixed side bearing 11 and the free side bearing 13 that are arranged on axial both sides.Herein, fixed side bearing 11 refers to, be configured to carry (supporting) radial load and the bearing that can carry (supporting) thrust load, such as, use this fixed side bearing 11 to be located by running shaft 5 fixing in the axial direction.In addition, free side bearing 13 refers to, be configured to the bearing only carrying (supporting) radial load, such as or in order to discharge the running shaft 5 caused because of temperature variation expansion, contraction or in order to the axis that adjusts running shaft 5 fixed position and use this free side bearing 13.
Fixed side bearing 11 has 3 angular contact ball bearings 11a, 11b, 11c, and be configured to: 2 angular contact ball bearing 11a, the 11bs adjacent with speed increasing mechanism 7 side are wherein arranged in series (DT), and 2 angular contact ball bearing 11b, the 11cs adjacent with opposite side (impeller 3 side) they are back-to-back configuration (DB).In addition, free side bearing 13 has 2 angular contact ball bearings 13a, 13b from speed increasing mechanism 7 side, and is configured to: these angular contact ball bearings 13a, 13b are back-to-back configuration (DB).
These angular contact ball bearings 11a, 11b, 11c, 13a, 13b have respectively: inner ring 15; Outer ring 16; Multiple ball 17, it is configured between inner ring 15 and outer ring 16; And retainer 18, multiple ball 17 is remained Free-rolling by it.
In addition, 3 angular contact ball bearings 11a, 11b, 11c forming fixed side bearing 11 mutually across inner ring spacer ring 19a, 19b and outer ring spacer ring 20a, 20b adjacent, 2 angular contact ball bearings 13a, 13b forming free side bearing 13 are adjacent across inner ring spacer ring 19c and outer ring spacer ring 20c mutually.Outer ring spacer ring 20a, 20b, 20c are provided with oilhole 21, the outer circumferential face of this outer ring spacer ring 20a, 20b, 20c is communicated with outer ring spacer ring 20a, 20b, 20c and the space between inner ring spacer ring 19a, 19b, 19c by this oilhole 21, can supply lubricant oil.
According to the heat-exchange system being equipped with such heat pump compressor 1, if the rotary motion of motor is delivered to running shaft 5 from output shaft via speed increasing mechanism 7, then impeller 3 speedup together with running shaft 5 rotates and compressed refrigerant.Now, by making to be become by compressing high temperature, the refrigeration agent of high pressure conditions carries out heat exchange via condenser (heat exchanger) and water, thus uses by the water after heating as the water of heater unit.In addition, the refrigeration agent after heat exchange, after have passed through condenser, expands in expander.Now, become low temperature by making expansion, the refrigeration agent of low-pressure state carries out heat exchange via vaporizer (heat exchanger) and water, thus used as the water of air-cooling system by cooled water.Further, repeat the refrigeration agent that have passed through vaporizer again to compress this circulation with impeller 3.
In addition, form in 3 angular contact ball bearings 11a, 11b, 11c of fixed side bearing 11, carried the load in the direction (figure A direction) from speed increasing mechanism 7 towards impeller 3 by 2 angular contact ball bearings 11a, 11b of speed increasing mechanism 7 side, carried the load in the direction (figure B direction) from impeller 3 towards speed increasing mechanism 7 by 1 angular contact ball bearing 11c of opposite side (impeller 3 side).
Herein, in order to make 2 angular contact ball bearings 11a, 11b bearing load equably of speed increasing mechanism 7 side, the axial clearance between inner ring 15,15 and inner ring spacer ring 19 and the axial clearance between outer ring 16,16 and outer ring spacer ring 20 are set to zero usually.That is, between these 2 angular contact ball bearings 11a, 11b, the axial width of inner ring spacer ring 19 and outer ring spacer ring 20 is set identical.
But in such heat pump compressor 1, because the heat of the gear 7a from speed increasing mechanism 7 inputs, thus rise closest to the temperature of the inner ring 15 of the angular contact ball bearing 11a of this gear 7a, inner ring 15 increases with the temperature difference of outer ring 16.In this case, the internal void of angular contact ball bearing 11a becomes minimum, and internal load increases, and likely causes and peels off damage in early days.
In addition, in patent documentation 1, as in arranged in series bearing for preventing the unbalanced technology of load-bearing, disclose following technology: outer ring spacer ring is by little the 1st outer ring spacer ring of heat conductivity and large the 2nd outer ring spacer ring of heat conductivity juxtaposition and forming in the axial direction.
Prior art document
Patent documentation
Patent documentation 1: Japanese Laid-Open Patent Publication 60-241519 publication
Model utility content
The technical problem of the utility model for solving
But, in the arranged in series bearing construction described in patent documentation 1, because outer ring spacer ring is made up of 2 kinds of materials, therefore, likely its combination required for time, cost increase.
The utility model completes in view of the above circumstances, and its object is to provides a kind of heat pump compressor, is easy formation, and can prevent the early stage stripping damage of bearing.
For the technological scheme of dealing with problems
Above-mentioned purpose of the present utility model is reached by following forming.
(1) heat pump compressor, it makes to be supported by multiple bearing to rotate for rotating running shaft speedup freely with speed increasing mechanism, and the impeller speedup be arranged on described running shaft is rotated, and the feature of described heat pump compressor is,
Described multiple bearing has and clips described speed increasing mechanism and be arranged on the fixed side bearing of axial both sides and free side bearing,
Described fixed side bearing has mutually across inner ring spacer ring and adjacent 3 angular contact ball bearings of outer ring spacer ring,
In 3 described angular contact ball bearings, 2 adjacent with described speed increasing mechanism side is arranged in series, and 2 adjacent with opposite side is back-to-back configuration,
Between 2 described angular contact ball bearings of arranged in series, the axial width of described outer ring spacer ring is less than the axial width of described inner ring spacer ring.
Model utility effect
According to heat pump compressor of the present utility model, form in 3 angular contact ball bearings of fixed side bearing, 2 adjacent with speed increasing mechanism side is arranged in series, 2 adjacent with opposite side is back-to-back configuration, between 2 angular contact ball bearings of arranged in series, the axial width of outer ring spacer ring is set the axial width being less than inner ring spacer ring.That is, between outer ring spacer ring and outer ring, gap is formed with.Herein, at start of run, in 2 angular contact ball bearings of arranged in series, because the internal void of the angular contact ball bearing of speed increasing mechanism side is large, therefore, (Centromedian in 3) angular contact ball bearing carrying thrust load of opposite side.And, along with the inner ring of the angular contact ball bearing of speed increasing mechanism side and the temperature difference of outer ring become large due to the heat input from speed increasing mechanism, gap smaller between outer ring spacer ring and outer ring, the transfer of bearing load from Centromedian angular contact ball bearing to the angular contact ball bearing of speed increasing mechanism side is in progress, and becomes the load sharing achieving balance.Like this, be easy formation, and the increase of the internal load in bearing can be suppressed, prevent from peeling off damage in early days.
Accompanying drawing explanation
Fig. 1 is the major component sectional view of the heat pump compressor of mode of execution.
Fig. 2 is the sectional view of existing heat pump compressor.
Description of reference numerals
1 heat pump compressor
3 impellers
5 running shafts
7 speed increasing mechanisms
7a gear
10 bearings
11 fixed side bearings
11a, 11b, 11c angular contact ball bearing
13 free side bearings
13a, 13b angular contact ball bearing
15 inner rings
16 outer rings
17 balls
18 retainers
19 inner ring spacer rings
20 outer ring spacer rings
21 oilholes
The axial width of L outer ring spacer ring
The axial width of M inner ring spacer ring
Embodiment
Below, use accompanying drawing that the heat pump compressor of mode of execution of the present utility model is described.In addition, the heat pump compressor of present embodiment is identical with the basic formation of the existing heat pump compressor shown in Fig. 2, therefore, for identical part, marks identical reference character, omits or simplified illustration, for different parts, describes in detail.
As shown in Figure 1, in the heat pump compressor 1 of present embodiment, in arranged in series between 2 angular contact ball bearings 11a, 11b, the axial width L of outer ring spacer ring 20a is set be less than the axial width M (L<M) of inner ring spacer ring 19a.Thus, inner ring 15,15 abuts mutually with inner ring spacer ring 19a, unlike this, between outer ring 16,16 and outer ring spacer ring 20a, is formed with axial clearance.In the present embodiment, axial clearance S is formed between the outer ring 16 of the angular contact ball bearing 11a in speed increasing mechanism 7 side and outer ring spacer ring 20a.
Herein, at start of run, in 2 angular contact ball bearings 11a, 11b of arranged in series, because the internal void of the angular contact ball bearing 11a of speed increasing mechanism 7 side is large, therefore, another (Centromedian among 3) angular contact ball bearing 11b carries the thrust load in the direction (Fig. 2 A direction) from speed increasing mechanism 7 towards impeller 3.And, along with the inner ring 15 of the angular contact ball bearing 11a of speed increasing mechanism 7 side and the temperature difference of outer ring 16 become large due to the heat input of the gear 7a from speed increasing mechanism 7, axial clearance S between outer ring spacer ring 20a and outer ring 16 diminishes, the transfer of bearing load from Centromedian angular contact ball bearing 11b to the angular contact ball bearing 11a of speed increasing mechanism 7 side is in progress, and becomes the load sharing achieving balance.Like this, suppress the increase of the internal load in bearing, can prevent from peeling off damage in early days.
In addition, the utility model is not limited to above-mentioned mode of execution, can suitably carry out changing, improvement etc.
Claims (1)
1. a heat pump compressor, it makes to be supported by multiple bearing to rotate for rotating running shaft speedup freely with speed increasing mechanism, and the impeller speedup be arranged on described running shaft is rotated, and the feature of described heat pump compressor is,
Described multiple bearing has and clips described speed increasing mechanism and be arranged on the fixed side bearing of axial both sides and free side bearing,
Described fixed side bearing has mutually across inner ring spacer ring and adjacent 3 angular contact ball bearings of outer ring spacer ring,
In 3 described angular contact ball bearings, 2 adjacent with described speed increasing mechanism side is arranged in series, and 2 adjacent with opposite side is back-to-back configuration,
Between 2 described angular contact ball bearings of arranged in series, the axial width of described outer ring spacer ring is less than the axial width of described inner ring spacer ring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014029772A JP2015151998A (en) | 2014-02-19 | 2014-02-19 | heat pump compressor |
| JP2014-029772 | 2014-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610356U true CN204610356U (en) | 2015-09-02 |
Family
ID=53894518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520113515.2U Expired - Fee Related CN204610356U (en) | 2014-02-19 | 2015-02-16 | Heat pump compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2015151998A (en) |
| KR (1) | KR200481205Y1 (en) |
| CN (1) | CN204610356U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167218A (en) * | 2017-12-26 | 2018-06-15 | 新昌县江北轴承有限公司 | A kind of dust-proof double-row angular contact bal bearing of water pump high load |
| CN113294432A (en) * | 2021-04-27 | 2021-08-24 | 洛阳轴承研究所有限公司 | Thrust bearing group |
| CN113294431A (en) * | 2021-04-27 | 2021-08-24 | 洛阳轴承研究所有限公司 | Thrust bearing group of series connection matched stack |
| CN114251373A (en) * | 2021-11-29 | 2022-03-29 | 上海科曼车辆部件系统股份有限公司 | Zero-clearance assembly method for back-to-back tapered roller bearing |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017034450A (en) | 2015-07-31 | 2017-02-09 | 株式会社Ｎｔｔドコモ | User terminal, radio base station, and radio communication method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241519A (en) * | 1984-05-16 | 1985-11-30 | Nippon Seiko Kk | Parallel combination bearing structure |
| JPH06241519A (en) | 1993-02-19 | 1994-08-30 | Sanyo Electric Co Ltd | Alarming device of safety cabinet |
| JPH10274303A (en) * | 1997-03-31 | 1998-10-13 | Ntn Corp | Frictional continuously variable transmission |
| JP2002303298A (en) * | 2001-04-03 | 2002-10-18 | Mitsubishi Heavy Ind Ltd | Turbo compressor |
| JP2005172098A (en) * | 2003-12-10 | 2005-06-30 | Koyo Seiko Co Ltd | Turbocharger bearing device |
| JP4525476B2 (en) * | 2005-06-07 | 2010-08-18 | 日本精工株式会社 | Preloading method for double row tapered roller bearing unit |
| JP5109256B2 (en) * | 2006-01-12 | 2012-12-26 | 日本精工株式会社 | Turbo compressor |
| JP2013194886A (en) * | 2012-03-22 | 2013-09-30 | Nsk Ltd | Bearing device and rotating body |
-
2014
- 2014-02-19 JP JP2014029772A patent/JP2015151998A/en active Pending
-
2015
- 2015-02-16 CN CN201520113515.2U patent/CN204610356U/en not_active Expired - Fee Related
- 2015-02-17 KR KR2020150001120U patent/KR200481205Y1/en active IP Right Grant
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167218A (en) * | 2017-12-26 | 2018-06-15 | 新昌县江北轴承有限公司 | A kind of dust-proof double-row angular contact bal bearing of water pump high load |
| CN113294432A (en) * | 2021-04-27 | 2021-08-24 | 洛阳轴承研究所有限公司 | Thrust bearing group |
| CN113294431A (en) * | 2021-04-27 | 2021-08-24 | 洛阳轴承研究所有限公司 | Thrust bearing group of series connection matched stack |
| CN113294431B (en) * | 2021-04-27 | 2022-08-30 | 洛阳轴承研究所有限公司 | Thrust bearing group of series connection matched stack |
| CN113294432B (en) * | 2021-04-27 | 2022-09-02 | 洛阳轴承研究所有限公司 | Thrust bearing group |
| CN114251373A (en) * | 2021-11-29 | 2022-03-29 | 上海科曼车辆部件系统股份有限公司 | Zero-clearance assembly method for back-to-back tapered roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20150003238U (en) | 2015-08-27 |
| KR200481205Y1 (en) | 2016-08-29 |
| JP2015151998A (en) | 2015-08-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20210216 |