CN102347664B - High-pressure resistance amphibious explosion-proof type bearing device - Google Patents
High-pressure resistance amphibious explosion-proof type bearing device Download PDFInfo
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- CN102347664B CN102347664B CN 201110216040 CN201110216040A CN102347664B CN 102347664 B CN102347664 B CN 102347664B CN 201110216040 CN201110216040 CN 201110216040 CN 201110216040 A CN201110216040 A CN 201110216040A CN 102347664 B CN102347664 B CN 102347664B
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Abstract
The invention relates to a high-pressure resistance amphibious explosion-proof type bearing device. In the device, a motor shaft is arranged in a bearing block of a butterfly shell cover through a bearing; a cover plate is hermetically fixed on the outer end face of a bearing sleeve; and a bearing oil injection device and an oil discharge device which are connected with a bearing cavity are arranged at two sides of the bearing sleeve respectively. The high-pressure resistance amphibious explosion-proof type bearing device is characterized in that: a bearing inner cover and a bearing outer cover are arranged inside and outside the bearing respectively; an oil retainer is arranged inside the bearing outer cover and is fixed by a retainer ring; the butterfly shell cover and the bearing sleeve are soldered into a whole; radiating and reinforcing ribs are arranged inside and outside the butterfly shell cover; and the butterfly shell cover and a flange ring are soldered into a whole. In the device, a bearing support part is far from a stress position of a structural part, so that the bearing support part of the bearing device is hardly deformed in a high pressure bearing state, the bearing is prevented from enduring extra radial force in running; and the support part of the bearing sleeve is designed to be the butterfly shell cover, so that the radial direction of the bearing sleeve of the bearing device is hardly deformed in the high pressure bearing state, matched faces of the inner and the outer rings of the bearing are prevented from moving dislocation in running, and the reliability of the bearing in running is improved.
Description
technical field:
The invention belongs to motor appurtenances technical field, be specifically related to the dual-purpose explosion-proof type bearing device of a kind of high pressure resistant Lu Qian.
background technology:
In known technology, explosion-proof motor only can be used in has the place that damp exists, and when explosion-proof motor runs well, explosion-proof motor and bearing arrangement thereof can not be for liquid or the gaseous environments of high pressure.For researching and developing the dual-purpose flame-proof type drainage equipment of high pressure resistant Lu Qian motor, need develop and there is the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian, yet in the world temporarily without the relevant dual-purpose explosion-proof motor standard of high pressure resistant Lu Qian and similar equipment.
summary of the invention:
The purpose of this invention is to provide a kind of good seal performance, can use in the high pressure place the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian safe and reliable to operation.
Technical scheme: the dual-purpose explosion-proof type bearing device of a kind of high pressure resistant Lu Qian, its machine shaft is installed in the bearing holder (housing, cover) of butterfly end socket by bearing, the sealing of bearing holder (housing, cover) outer face is fixed with cover plate, the both sides of bearing holder (housing, cover) are respectively equipped with bearing oiling device and the discharge equipment be communicated with bearing bore, and the inside and outside both sides of bearing holder (housing, cover) are separately installed with internal bearing cover and bearing end cover; The inside of bearing end cover is provided with an oil scraper ring, and oil scraper ring is fixed by back-up ring; Butterfly end socket and bearing holder (housing, cover) are welded as a whole, and butterfly end socket medial and lateral are provided with heat radiation and reinforcement sheet, and butterfly end socket and flange ring are welded as a whole.
A high-pressure-resistant sealed circle is housed between described cover plate and bearing holder (housing, cover).
The installed surface of flange ring is provided with a high-pressure-resistant sealed circle, and is provided with explosion suppresion surface.
The composition surface of described bearing holder (housing, cover) and internal bearing cover, internal bearing cover endoporus are equipped with explosion suppresion surface.
The oil fuel tube of described oiling device connects with bearing end cover, and the oil fuel tube outside is the oiling protection tube, oiling protection tube one end and bearing holder (housing, cover) welding, and the other end connects with bearing oil-in thread seal cover.
One end seal welding of the oil exit pipe of described discharge equipment is on bearing holder (housing, cover), and the other end connects with bearing oil-out thread seal cover.
Beneficial effect of the present invention: explosion-proof type bearing device of the present invention, the support zone of bearing is away from the force part of structural member, make bearing arrangement under high pressure-bearing dress state, the few distortion of bearings part, guaranteed that being in operation of bearing is not subject to extra radial load; And the strutting piece of bearing holder (housing, cover) adopts the design of butterfly end socket, make bearing arrangement minimum in the axial deformation of high pressure-bearing dress state lower bearing sleeve, guaranteed the dislocation that can not be moved that is in operation of bearing enclose mating surface, improved the reliability be in operation of bearing;
By at the butterfly end socket, increasing muscle, increased on the one hand the intensity of butterfly end socket, reduced the distortion under high pressure of butterfly end socket, improved on the other hand the heat-sinking capability of bearing arrangement, increased the bearing reliability of operation;
By the oil-feed discharge equipment is set, the maintenance and the guarantee that have facilitated bearing arrangement to be in operation, increased the reliability that bearing is in operation;
By take thread seal cover and high-pressure-resistant sealed circle to carry out encapsulation process to bearing arrangement, guaranteed that this bearing arrangement can long-term safety stable operation under high pressure (6Mpa) state.
With conventional bearing arrangement, compare, the dual-purpose explosion-proof type bearing device of this high pressure resistant Lu Qian has good seal performance, strong, the safe and reliable to operation property of bearing capacity, the advantages such as structure is ingenious, easy for installation, explosion insulation performance is good, good looking appearance, can be used in the highly pressurised liquid environment of damp place and anti-6Mpa.
the accompanying drawing explanation:
Fig. 1 is semi-section structural representation of the present invention;
Fig. 2 is the left-hand structural representation of Fig. 1.
In figure, sequence number 1 is oil exit pipe; sequence number 2 is cover plate; sequence number 3 is sealing ring, and sequence number 4 is bearing holder (housing, cover), and sequence number 5 is oil fuel tube; sequence number 6 is the oiling protection tube; sequence number 7 is the thread seal cover, and sequence number 8 is outside heat sink, and sequence number 9 is inner fin; sequence number 10 is the butterfly end socket; sequence number 11 is flange ring, and sequence number 12 is sealing ring, and sequence number 13 is bearing end cover; sequence number 14 is internal bearing cover; sequence number 15 is oil scraper ring, and sequence number 16 is end ring, and sequence number 17 is bearing; sequence number 18 is explosion-proof composition surface, and sequence number 19 is machine shaft.
Embodiment
Referring to Fig. 1, the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian of the present invention, this bearing arrangement main body is bearing holder (housing, cover) 4, butterfly end socket 10 and bearing 17; Bearing 17 is positioned in the bearing holder (housing, cover) 4 of particular design, and bearing 17 installed inside are with the internal bearing cover 14 of explosion suppresion surface, and bearing end cover 13, oil scraper ring 15 and back-up ring 16 are installed in bearing 17 outsides; Butterfly end socket 10 is main support connectors of bearing arrangement, and an end is welded on bearing holder (housing, cover) 4, and the other end is welded on flange ring 11; Oil exit pipe 1 and oiling protection tube 6 all seal with thread seal cover 7, and are welded on bearing holder (housing, cover) 4; Oil fuel tube 5 is positioned at oil guard pipe 6 inside, with bearing end cover 13, links; Outside heat sink 8 and inner fin 9 are welded on butterfly end socket 10, and fin has improved the heat-sinking capability of bearing on the one hand, have greatly strengthened on the other hand the intensity of butterfly end socket; Cover plate 2 adopts 3 sealings of high-pressure-resistant sealed circle with bearing holder (housing, cover) 4; Adopt 12 sealings of high-pressure-resistant sealed circle between flange ring 11 and equipment body.
Requirement of explosion proof in this structure this explosion-proof wire outlet device is met GB3836 " national explosion-proof electrification standard ", improved again the barrier propterty of this explosion-proof wire outlet device, and degree of protection reaches IP68, can bear 6Mpa hydraulic pressure and ne-leakage.The particular design of this bearing arrangement by structurally and the application of special material, guaranteed that bearing arrangement is under high pressure (6Mpa) state, the radial and axial distortion of the bearing portion of bearing holder (housing, cover) 4 all is less than 0.08mm, thereby has guaranteed bearing safe and reliable operation under the pressure-bearing environment for a long time.
This junction box structure is through three dimensional design and stress analysis, rational in infrastructure, stress distribution is even; To there is high pressure-bearing on structure, be out of shape little, sealing property is high, operational reliability, can meet again the bearing arrangement that the fiery gas place is used; Material therefor, through special screening, can be used in the highly pressurised liquid environment of damp place and anti-6Mpa in long-time.
Claims (3)
1. the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian, its machine shaft is installed in the bearing holder (housing, cover) of butterfly end socket by bearing, the sealing of bearing holder (housing, cover) outer face is fixed with cover plate, the both sides of bearing holder (housing, cover) are respectively equipped with bearing oiling device and the discharge equipment be communicated with bearing bore, it is characterized in that: the inside and outside both sides of bearing holder (housing, cover) are separately installed with internal bearing cover and bearing end cover; The inside of bearing end cover is provided with an oil scraper ring, and oil scraper ring is fixed by back-up ring; Butterfly end socket and bearing holder (housing, cover) are welded as a whole, and butterfly end socket medial and lateral are provided with heat radiation and reinforcement sheet, and butterfly end socket and flange ring are welded as a whole; A high-pressure-resistant sealed circle is housed between described cover plate and bearing holder (housing, cover); The installed surface of flange ring is provided with a high-pressure-resistant sealed circle, and is provided with explosion suppresion surface
;the oil fuel tube of described oiling device connects with bearing end cover, and the oil fuel tube outside is the oiling protection tube, oiling protection tube one end and bearing holder (housing, cover) welding, and the other end connects with bearing oil-in thread seal cover; One end seal welding of the oil exit pipe of described discharge equipment is on bearing holder (housing, cover), and the other end connects with bearing oil-out thread seal cover.
2. the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian according to claim 1, it is characterized in that: the composition surface of described bearing holder (housing, cover) and internal bearing cover, internal bearing cover endoporus are equipped with explosion suppresion surface.
3. the dual-purpose explosion-proof type bearing device of high pressure resistant Lu Qian according to claim 1 is characterized in that: the structure of the strutting piece of bearing holder (housing, cover) is to adopt the design of butterfly end socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110216040 CN102347664B (en) | 2011-07-30 | 2011-07-30 | High-pressure resistance amphibious explosion-proof type bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110216040 CN102347664B (en) | 2011-07-30 | 2011-07-30 | High-pressure resistance amphibious explosion-proof type bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102347664A CN102347664A (en) | 2012-02-08 |
| CN102347664B true CN102347664B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110216040 Expired - Fee Related CN102347664B (en) | 2011-07-30 | 2011-07-30 | High-pressure resistance amphibious explosion-proof type bearing device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167857A (en) * | 2014-08-18 | 2014-11-26 | 中达电机股份有限公司 | Bearing structure for electric motor of mining local fan |
| CN111680393B (en) * | 2020-04-24 | 2023-05-23 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Reliability identification test section generation method for ship and submarine dual-purpose equipment |
Citations (4)
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|---|---|---|---|---|
| CN201563016U (en) * | 2008-06-18 | 2010-08-25 | 索尤若驱动有限及两合公司 | Motor |
| CN101867270A (en) * | 2009-04-20 | 2010-10-20 | 无锡市中达电机有限公司 | Special high-voltage three-phase asynchronous motor for compressor |
| CN101882849A (en) * | 2010-07-19 | 2010-11-10 | 无锡市中达电机有限公司 | High-voltage three-phase asynchronous motor for cylindrical low-noise compressor |
| CN201877932U (en) * | 2010-09-30 | 2011-06-22 | 南阳防爆集团股份有限公司 | Explosion-proof submersible motor for mines |
-
2011
- 2011-07-30 CN CN 201110216040 patent/CN102347664B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201563016U (en) * | 2008-06-18 | 2010-08-25 | 索尤若驱动有限及两合公司 | Motor |
| CN101867270A (en) * | 2009-04-20 | 2010-10-20 | 无锡市中达电机有限公司 | Special high-voltage three-phase asynchronous motor for compressor |
| CN101882849A (en) * | 2010-07-19 | 2010-11-10 | 无锡市中达电机有限公司 | High-voltage three-phase asynchronous motor for cylindrical low-noise compressor |
| CN201877932U (en) * | 2010-09-30 | 2011-06-22 | 南阳防爆集团股份有限公司 | Explosion-proof submersible motor for mines |
Non-Patent Citations (6)
| Title |
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| 朱瑞霞等.浅谈低压隔爆型三相异步.《电气防爆》.2007,(第3期),33-35. |
| 浅谈低压隔爆型三相异步;朱瑞霞等;《电气防爆》;20071231(第3期);33-35 * |
| 王鹏.隔爆型三相异步电动机轴贯通.《电气防爆》.2007,(第3期),22-23. |
| 陈建如等.高压防爆电机滑动轴承漏油的原因分析与防治.《电气防爆》.2008,(第3期),33-35. |
| 隔爆型三相异步电动机轴贯通;王鹏;《电气防爆》;20071231(第3期);22-23 * |
| 高压防爆电机滑动轴承漏油的原因分析与防治;陈建如等;《电气防爆》;20081231(第3期);33-35 * |
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| CN102347664A (en) | 2012-02-08 |
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