CN203532308U - Bearing body used for low pressure safety-injection pump - Google Patents
Bearing body used for low pressure safety-injection pump Download PDFInfo
- Publication number
- CN203532308U CN203532308U CN201320584244.XU CN201320584244U CN203532308U CN 203532308 U CN203532308 U CN 203532308U CN 201320584244 U CN201320584244 U CN 201320584244U CN 203532308 U CN203532308 U CN 203532308U
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- bearing
- bearing support
- low pressure
- pressure safety
- injection pump
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Abstract
The utility model discloses a bearing body used for a low pressure safety-injection pump. The bearing body used for the low pressure safety-injection pump comprises a bearing pedestal connected with a pump shaft of the low pressure safety-injection pump in a sleeved mode, the bearing pedestal comprises a bearing pedestal body and a base connected with the bottom of the bearing pedestal body, a pump shaft sleeve-connecting oil cup is fixed to the top face of the bearing pedestal body, the bottom face of the bearing pedestal body is supported by a dustproof disk fixedly connected with the pump shaft in a sleeved mode so that a bearing cavity is formed between the bearing pedestal body and the pump shaft, and a bearing fixed to the inner wall of the bearing pedestal body is arranged in the bearing cavity; heat dissipating rib plates are evenly distributed in the circumference of the outer wall of the bearing pedestal, the bottom faces of the heat dissipating rib plates and the base are fixed, the top faces of the heat dissipating rib plates are higher than the top face of the oil cup, and anti-corrosion coatings are arranged along the top faces and the outer edges of the heat dissipating rib plates. The bearing body used for the low pressure safety-injection pump has the technical advantages that heat dissipation of the bearing in the bearing body is effectively accelerated, the temperature of the surface of the bearing is lowered, the abrasion rate of the bearing is lowered, and the heat dissipating rib plates can be effectively prevented from being damaged.
Description
Technical field
The utility model relates to a kind of low pressure safety injection pump bearing support in nuclear power equipment field.
Background technique
Low pressure safety injection pump is used for the rotating center of stabilizing low voltage safety injection pump pump shaft 100 with bearing support, prevents that pump shaft 100 from wearing and tearing in the running of low pressure safety injection pump.Refer to Fig. 1, existing low pressure safety injection pump bearing support, comprise the bearing support 1 with pump shaft 100 sockets, bearing support 1 comprise bearing support body 11 and below bearing support body 11 with the coaxial base being connected 12 of bearing support body 11, base 12 is fixed on bearing support 1 in the pump seat (not shown) of low pressure safety injection pump.On the end face of bearing support body 11, be fixed with the lubricating cup 3 being socketed with pump shaft 100, the bottom surface of bearing support body 11 is supported by a fixedly sleeved dust pan 104 on pump shaft 100.Owing to being conventionally socketed axle sleeve 101 on pump shaft 100, like this, bearing support body 1 and axle sleeve 101, be pump shaft 100 radially between form a bearing bore 5, in bearing bore 5, be provided with the bearing 2 being fixed on bearing support body 11 inwalls, bearing 2 is biserial cylinder ball bearing, the interior spacer sleeve 103 that is provided with the outer spacer sleeve 102 fixing with the inwall of bearing support body 1 between upper and lower two row bearings 2 and fixes with axle sleeve 101.Around the circumference of bearing support body 11, uniform heat radiation gusset 13.In prior art, the heat radiation end face of gusset 13 and the end face of lubricating cup 3 are contour, and the bottom surface of heat radiation gusset 13 and bearing support body 11 are fixing, so the surface area of monolithic heat radiation gusset 13 is all less, is only 310cm
2, meanwhile, on bearing support body 11, be also provided with some radially oil extraction through holes 111, so that the lubricant oil in bearing bore 5 is back in lubricating cup 3.Meanwhile, between base 12 and pump shaft 100, be also provided with the integrated mechanical sealing 7 being socketed with pump shaft 1.
Such design, because the specification of biserial cylinder ball bearing cannot improve, causes the volume of bearing 2 little, and in the running of low pressure safety injection pump, the heating value of bearing 2 is large, causes bearing 2 surface temperatures high, quick abrasion, and operation expense is high.In addition, the surface area of monolithic heat radiation gusset 13 is little, has also affected the heat radiation of bearing support 1 inner bearing 2, has further improved the problem on bearing 2 surfaces, has accelerated the wearing and tearing of bearing 2.Meanwhile, heat radiation gusset 13 in use also very easily damages.
Model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of low pressure safety injection pump bearing support is provided, and it can effectively accelerate the heat radiation of bearing support inner bearing, reduces the temperature of described bearing surface, reduce the rate of depreciation of described bearing, and damage in the gusset using process that prevents from dispelling the heat.
A kind of technological scheme that realizes above-mentioned purpose is: a kind of low pressure safety injection pump bearing support, comprise the bearing support with the pump shaft socket of low pressure safety injection pump, described bearing support comprises bearing support body, and the base being connected with described bearing support body bottom, the end face of described bearing support body is fixed with and described pump shaft socket lubricating cup, the bottom surface of described bearing support body is by supporting with the fixedly sleeved dust pan of described pump shaft, make to form bearing bore between described bearing support body and described pump shaft, in described bearing bore, be provided with the bearing on the inwall that is fixed on described bearing support body;
Around the circumference uniform distribution heat radiation gusset of described bearing support outer wall, the bottom surface of described heat radiation gusset and described base are fixed, and the end face of described heat radiation gusset is higher than the end face of lubricating cup, and the outer rim of every described heat radiation gusset and end face are all provided with wear resistant coating.
Further, described bearing is double-row angular contact bal bearing.
Further, the model of described bearing is 7322BECBY.
Further, between described bearing support body and described dust pan, be provided with mazy type mechanical seal.
Further, described wear resistant coating material used is aluminium oxide or zirconium oxide.
Further, described wear resistant coating forms by plasma spray coating process.
Further, the outer wall of described bearing support body is provided with the connection reinforcement plate that connects any two adjacent heat radiation gussets.
Adopted the technological scheme of bearing support for a kind of low pressure safety injection pump of the present utility model, by elongating at vertical direction around each piece heat radiation gusset of the circumference uniform distribution of bearing support outer wall, the bottom surface of described heat radiation gusset and the base of described bearing support are fixed, the end face of described heat radiation gusset is higher than the end face of the lubricating cup of described bearing support end face, increase on described bearing support the surface area of each piece heat radiation gusset, and in the end face of every heat radiation gusset and the technological scheme that outer rim arranges wear resistant coating.Its technique effect is: effectively accelerates the heat radiation of bearing support inner bearing, reduces the temperature of described bearing surface, reduce the rate of depreciation of described bearing, and the damage of the gusset that can effectively prevent from dispelling the heat.
Accompanying drawing explanation
Fig. 1 is the structural representation of bearing support for the low pressure safety injection pump of prior art.
Fig. 2 is the structural representation of bearing support for a kind of low pressure safety injection pump of the present utility model.
Embodiment
Refer to Fig. 2, inventor of the present utility model is in order to understand the technical solution of the utility model better, below by embodiment particularly, and is described in detail by reference to the accompanying drawings:
Refer to Fig. 2, a kind of low pressure safety injection pump bearing support of the present utility model, is used for the rotating center of pump shaft 100 of stabilizing low voltage safety injection pump, prevents that pump shaft 100 from wearing and tearing in the running of low pressure safety injection pump.A kind of low pressure safety injection pump bearing support of the present utility model, comprise the bearing support 1 with pump shaft 100 socket of low pressure safety injection pump, bearing support 1 comprise bearing support body 11 and below bearing support body 11 with the coaxial base being connected 12 of bearing support body 11, base 12 is fixed on bearing support 1 in the pump seat (not shown) of low pressure safety injection pump.The end face of bearing support body 11 is fixed with and pump shaft 100 socket lubricating cups 3, the bottom surface of bearing support body 1 is by dust pan 104 supports fixedly sleeved with pump shaft 100, make to form bearing bore 5 between bearing support body 11 pump shafts 100, owing to being conventionally socketed axle sleeve 101 on pump shaft 100, like this, bearing support body 1 and axle sleeve 101, pump shaft 100 radially between form a bearing bore 5.In bearing bore 5, be provided with the bearing 2 being fixed on bearing support body 11 inwalls.On bearing support body 11, be also provided with some radially oil extraction through holes 111.Lubricant oil in lubricating cup 3 flows into bearing bore 5 from the top of bearing bore 5, the bearing 2 in bearing bore 5 is lubricated, and after the complete matched bearings 2 of lubricant oil lubricated, the radially oil extraction through hole 111 from bearing support body 11 is discharged, and is back in lubricating cup 3.In order to prevent that lubricant oil from leaking from bearing bore 5 bottoms, is provided with mazy type mechanical seal between bearing support body 11 and dust pan 104.
Greatest improvement of the present utility model is the circumference uniform distribution heat radiation gusset 13 around bearing support 1 outer wall.In the utility model, each piece heat radiation bottom surface of gusset 13 and the base of bearing support 1 12 are fixing, and the end face of each piece heat radiation gusset 13 is higher than the end face of lubricating cup 3.That is to say, the utility model has carried out the stretching on vertical direction to each piece heat radiation gusset 13 of the circumference uniform distribution around bearing support 1 outer wall, like this, around each piece heat radiation gusset 13 surface areas of the circumference uniform distribution of bearing support 1 outer wall, all significantly increases, and has reached 600cm
2, be original 2 times.The object of design is like this: by the dispel the heat surface area of gusset 13 of increases, and the heat dissipation potential of increase bearing support 1, thus be accelerated in the heat radiation of bearing support 1 inner bearing 2, reduce the temperature of described bearing surface, reduce the rate of depreciation of described bearing 2.
Meanwhile, end face and the outer rim of every heat radiation gusset 13 are provided with wear resistant coating 131, and the material of wear resistant coating 131 is zirconium oxide or aluminium oxide, and wear resistant coating 131 forms by plasma spray coating process.The object of design is like this: the in use fracture damage of gusset 13 that prevents from dispelling the heat, thereby the working life of prolongation bearing support.
Meanwhile, in order to guarantee in using process, the position of heat radiation gusset 13 is not offset, and also, in order further to increase the heat diffusion area of bearing support, the outer wall of bearing support body 11 is provided with the connection reinforcement plate 14 that connects any two adjacent heat radiation gussets 13.
Simultaneously, the bearing 2 adopting in the utility model is double-row angular contact bal bearings, the load that double-row angular contact bal bearing can carry is greater than biserial cylinder ball bearing, therefore in low pressure safety injection pump running, the heating value of bearing 2 reduces, also be conducive to reduce the temperature on bearing 2 surfaces, reduce the rate of depreciation of bearing 2.
Also have, in the utility model, the specification of bearing 2 is 7322BECBY, and therefore, bearing 2 has improved two specifications than originally, be further conducive to reduce the temperature on bearing 2 surfaces, reduces the rate of depreciation of bearing 2.
The interior spacer sleeve 103 that is provided with up and down the outer spacer sleeve 102 fixing with the inwall of bearing support body 11 between two row bearings 2 and fixes with axle sleeve 101 of described double-row angular contact bal bearing.
Those of ordinary skill in the art will be appreciated that, above embodiment is only for the utility model is described, and be not used as restriction of the present utility model, as long as within the scope of connotation of the present utility model, to the above embodiment's variation, modification, all will drop within the scope of claims of the present utility model.
Claims (7)
1. a low pressure safety injection pump bearing support, comprise the bearing support (1) with pump shaft (100) socket of low pressure safety injection pump, described bearing support (1) comprises bearing support body (11), and the base (12) being connected with described bearing support body (1) bottom, the end face of described bearing support body (11) is fixed with and described pump shaft (100) socket lubricating cup (3), the bottom surface of described bearing support body (1) is by dust pan (104) support fixedly sleeved with described pump shaft (100), make to form bearing bore (5) between described bearing support body (11) and described pump shaft (100), in described bearing bore (5), be provided with the bearing (2) on the inwall that is fixed on described bearing support body (11),
It is characterized in that: around the circumference uniform distribution heat radiation gusset (13) of described bearing support (1) outer wall, the bottom surface of described heat radiation gusset (13) and described base (12) are fixing, the end face of described heat radiation gusset (13) is higher than the end face of lubricating cup (3), and the outer rim of every described heat radiation gusset (13) and end face are all provided with wear resistant coating (131).
2. a kind of low pressure safety injection pump bearing support according to claim 1, is characterized in that: described bearing (2) is double-row angular contact bal bearing.
3. a kind of low pressure safety injection pump bearing support according to claim 2, is characterized in that: the model of described bearing (2) is 7322BECBY.
4. according to a kind of low pressure safety injection pump bearing support described in any one in claims 1 to 3, it is characterized in that: between described bearing support body (11) and described dust pan (104), be provided with mazy type mechanical seal.
5. according to a kind of low pressure safety injection pump bearing support described in any one in claims 1 to 3, it is characterized in that: described wear resistant coating (131) material used is aluminium oxide or zirconium oxide.
6. a kind of low pressure safety injection pump bearing support according to claim 5, is characterized in that: described wear resistant coating (131) forms by plasma spray coating process.
7. according to a kind of low pressure safety injection pump bearing support described in any one in claims 1 to 3, it is characterized in that: the outer wall of described bearing support body (11) is provided with the connection reinforcement plate (14) that connects any two adjacent heat radiation gussets (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584244.XU CN203532308U (en) | 2013-09-22 | 2013-09-22 | Bearing body used for low pressure safety-injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584244.XU CN203532308U (en) | 2013-09-22 | 2013-09-22 | Bearing body used for low pressure safety-injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532308U true CN203532308U (en) | 2014-04-09 |
Family
ID=50418521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584244.XU Expired - Lifetime CN203532308U (en) | 2013-09-22 | 2013-09-22 | Bearing body used for low pressure safety-injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532308U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669216A (en) * | 2017-01-19 | 2017-05-17 | 张家港市新贝机械有限公司 | Dehumidification and crystallization system |
| CN106764365A (en) * | 2017-01-19 | 2017-05-31 | 张家港市新贝机械有限公司 | For the bearing assembly in the crystal system that dehumidifies |
-
2013
- 2013-09-22 CN CN201320584244.XU patent/CN203532308U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106669216A (en) * | 2017-01-19 | 2017-05-17 | 张家港市新贝机械有限公司 | Dehumidification and crystallization system |
| CN106764365A (en) * | 2017-01-19 | 2017-05-31 | 张家港市新贝机械有限公司 | For the bearing assembly in the crystal system that dehumidifies |
| CN115350497A (en) * | 2017-01-19 | 2022-11-18 | 张家港市新贝机械有限公司 | Dehumidification crystallization system of shredding sheet |
| CN115350497B (en) * | 2017-01-19 | 2024-06-11 | 张家港市新贝机械有限公司 | Dehumidification crystallization system for shredding sheets |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |