CN102797747A - Bearing for ultralow-temperature liquid pump - Google Patents
Bearing for ultralow-temperature liquid pump Download PDFInfo
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- CN102797747A CN102797747A CN2012103257282A CN201210325728A CN102797747A CN 102797747 A CN102797747 A CN 102797747A CN 2012103257282 A CN2012103257282 A CN 2012103257282A CN 201210325728 A CN201210325728 A CN 201210325728A CN 102797747 A CN102797747 A CN 102797747A
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- ring
- bearing
- liquid pump
- temperature liquid
- outer shroud
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Abstract
The invention provides a bearing for an ultralow-temperature liquid pump, and relates to a bearing for a liquid pump, and the bearing is used for solving the problems of an existing bearing for ultralow-temperature liquid pump that the bearing fails to run smoothly under a running condition with ultralow temperature and high speed because of no retainer, and the bearing cannot run for a long time without being lubricated. According to the bearing for the ultralow-temperature liquid pump, two annular retaining frames have the same width; annular chambers are formed at two ends between an external ring and an internal ring, with each one comprising a circular retaining frame inside; a plurality of bucket holes are arranged at the positions the circular retaining frame corresponding to a plurality of spherical rolling bodies; a plurality of nail holes are uniformly distributed on the annular retaining frame along the circumference; tubular rivets are arranged in every correspondingly arranged nail holes on the two annular retaining frames, and two ends of the tubular rivets are arranged on the external end surfaces of corresponding annular retaining frames by flanging; the two annular retaining frames are connected through a plurality of tubular rivets; and the width of the external ring is less than the sum of the width of the two annular retaining frames. The bearing is applied to the ultralow-temperature liquid pump.
Description
Technical field
The present invention relates to a kind of liquid pump bearing, belong to the bearing structure design field.
Background technique
Ultralow temperature liquid pump bearing is worked under-160 ℃ of environment, and is unlubricated during work, and rotating speed higher (3400r/min) is near limit speed, and load is the half the of load rating.Bearing needs retainer to the rolling element channeling conduct under the condition of running up, could work reposefully.Under unlubricated operating mode, can let the bearing long-term work, retainer must have self-lubricating function, in order to avoid the damage rolling element.Based on above two necessary conditions, existing bearing can not satisfy usage requirement.
Summary of the invention
The purpose of this invention is to provide a kind of ultralow temperature liquid pump bearing; To solve existing ultralow temperature liquid pump bearing because of not being provided with retainer; Can't satisfy bearing and under ultralow temperature runs up condition, work reposefully, can not keep the problem of long-term work at unlubricated operating mode lower bearing.
The present invention addresses the above problem the technological scheme of taking to be:
Ultralow temperature liquid pump bearing; Said bearing comprises outer shroud, interior ring and a plurality of spherical rolling element; Ring was gone up and the two concentric setting in outer shroud was sleeved on, and the inner peripheral surface of outer shroud is positioned on the circumference at middle part and the outer peripheral surface of ring is positioned on the circumference at middle part and is laid with a plurality of sphere pits respectively, be arranged on the outer shroud inner peripheral surface a plurality of sphere pits be arranged on the interior corresponding one by one setting of a plurality of sphere pits that encircles on the outer peripheral surface; Be provided with a spherical rolling element in each corresponding sphere pit; Outer shroud equates that with the width of interior ring said bearing also comprises two ring retainers and a plurality of pipe type rivet, and the width of two ring retainers equates; Two ends between outer shroud and the interior ring respectively form a ring cavity; Be provided with a ring retainer in each ring cavity, ring retainer and a plurality of spherical rolling element opposite positions place are provided with a plurality of pockets hole, and being uniformly distributed along the circumference on the ring retainer is provided with a plurality of rivet holes; Be provided with a pipe type rivet in the rivet hole of each the corresponding setting on two ring retainers; The two ends flange of pipe type rivet is arranged on the exterior edge face of corresponding ring retainer, and two ring retainers connect through a plurality of pipe type rivets, and the width of outer shroud is less than two ring retainer width sums.
The invention has the beneficial effects as follows: 1, when preventing high speed light loading; The underloading of spherical rolling element is skidded and spherical rolling element spin; Two ring retainer width sums are 43 ~ 44mm, for the ultra wide design that increases the weight of, play damping function; Low frictional loss under the assurance bearing is unlubricated, and then prolonged bearing life.2, the application of stainless steel soft-state tubular-shank rivet, the stress under material fragility under ultra-low temperature surroundings and the high cold contraction has satisfied working condition requirement, has reached Expected Results.3, bearing of the present invention has stronger toughness and intensity under-160 ℃, and can realize lubricating under the unlubricated fat operating mode.4, inner and outer rings is processed by stainless steel material, guarantees long-term non-corrosive when unlubricated; Increase the low temperature liquid nitrogen cold treatment process during heat treatment, guarantee that the inner and outer rings precision is not lost under-160 ℃ of environment.5, two ring retainers use the hollow soft attitude rivet of stainless steel to connect, and guarantee the not brittle failure under ultralow temperature of the hollow soft attitude rivet of stainless steel, and assurance riveted process are not damaged the ring retainer.6, the two ends of the hollow soft attitude rivet of stainless steel are respectively equipped with flange, have improved riveted intensity.
To sum up, the present invention can satisfy bearing and under ultralow temperature runs up condition, work reposefully, can keep long-term work at unlubricated operating mode lower bearing.
Description of drawings
Fig. 1 looks sectional view for overall structure master of the present invention, and Fig. 2 is the plan view of ring retainer, and Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
Embodiment one: combine Fig. 1 ~ Fig. 3 explanation; The ultralow temperature liquid pump bearing of this mode of execution; Said bearing comprises outer shroud 1, interior ring 2 and a plurality of spherical rolling element 3; In outer shroud 1 is sleeved on the ring 2 and the two concentric setting, the inner peripheral surface of outer shroud 1 is positioned on the circumference at middle part and ring 2 outer peripheral surface is positioned on the circumference at middle part and is laid with a plurality of sphere pits 4 respectively, be arranged on outer shroud 1 inner peripheral surface a plurality of sphere pits 4 be arranged on the interior corresponding one by one setting of a plurality of sphere pits 4 that encircles on 2 outer peripheral surfaces; Be provided with a spherical rolling element 3 in each corresponding sphere pit 4; Outer shroud 1 equates that with the width of interior ring 2 said bearing comprises that also the width of two ring retainers 5 and 6, two ring retainers 5 of a plurality of pipe type rivets equates; Two ends between outer shroud 1 and the interior ring 2 respectively form a ring cavity; Be provided with a ring retainer 5 in each ring cavity, ring retainer 5 is provided with a plurality of pockets hole 7 with a plurality of spherical rolling elements 3 opposite position places, and being uniformly distributed along the circumference on the ring retainer 5 is provided with a plurality of rivet holes 8; Be provided with a pipe type rivet 6 in the rivet hole 8 of each the corresponding setting on two ring retainers 5; The two ends flange of pipe type rivet 6 is arranged on the exterior edge face of corresponding ring retainer 5, and two ring retainers 5 connect through a plurality of pipe type rivets 6, and the width of outer shroud 1 is less than two ring retainers, 5 width sums.
Embodiment two: combine Fig. 1 explanation, the pipe type rivet 6 of this mode of execution is the stainless steel soft-state tubular-shank rivet.Undocumented technical characteristics is identical with embodiment one in this mode of execution.
Embodiment three: combine Fig. 1 explanation, two ring retainers, the 5 width sums of this mode of execution are 43 ~ 4mm.Undocumented technical characteristics is identical with embodiment one or two in this mode of execution.
Embodiment four: combine Fig. 1 explanation, the outer shroud 1 of this mode of execution and interior ring 2 are processed by stainless steel material.Undocumented technical characteristics is identical with embodiment one in this mode of execution.
Embodiment five: combine Fig. 1 explanation, the quantity of the spherical rolling element 3 of this mode of execution is eight ~ ten.Undocumented technical characteristics is identical with embodiment one in this mode of execution.
Embodiment six: combine Fig. 1 explanation, the quantity of the pipe type rivet 6 of this mode of execution is eight ~ ten.Undocumented technical characteristics is identical with embodiment one or two in this mode of execution.
Working principle: be horizontal positioned during this bearing working; Outer shroud 1 cooperates with bearing support or hole bearing is played fixation; In ring 2 cooperate rotation with main shaft; Make spherical rolling element 3 bearing loads, transmitted load, ring retainer 5 that a plurality of spherical rolling elements 3 are evenly distributed and be fixed in the rotating range that a plurality of pipe type rivets 6 rivet together two ring retainers 5 tightly.
Process route is following:
Overcoat or interior cover technological process:
9Cr18Mo hot rolling material → forging molding; Annealing → numerical control Vehicle Processing → the tempering heat treatment of quenching → (slightly) flat surface grinding → corase grind outer ring → whole flat surface grinding → corase grind outer ring endoporus → low temperature cryogenic treatment → fine grinding outer ring endoporus → corase grind outer fissure → additional tempering → polishing chamfering (comprising the assembling chamfering) → lappingout plane (finishing plane) → eventually mill outer ring → lappingout outer ring (finishing cylindrical) → fine grinding outer fissure → grind end and grind outer ring endoporus → demagnetization outer fissure → end; Clean → slightly grind outer fissure and (carefully grind outer fissure; The lappingout outer fissure); Polishing outer fissure → demagnetization; Clean → repair and grind fulcrum and print → 100% magnetic powder detection.
The technological process of ring retainer:
All the other rivet holes → brill pocket hole → stroke rigging datum line → two ring retainer split is bored in the fit positioning hole → back, location of boring of one-tenth section bar → car external diameter → car internal diameter → surfacing → two ring retainer.
The assembly technology flow process:
Demagnetization (cleaning, antirust) → size separation → play detection → riveted assembling → oiling, packing.
Claims (6)
1. ultralow temperature liquid pump bearing; Said bearing comprises outer shroud (1), interior ring (2) and a plurality of spherical rolling element (3); Outer shroud (1) is sleeved on interior ring (2) and goes up and the two concentric setting; The inner peripheral surface of outer shroud (1) is positioned on the circumference at middle part and on the circumference of outer peripheral surface in the middle part of being positioned at of ring (2) and is laid with a plurality of sphere pits (4) respectively; Be arranged on outer shroud (1) inner peripheral surface a plurality of sphere pits (4) be arranged on interior ring (2) outer peripheral surface on the corresponding one by one setting of a plurality of sphere pits (4); Be provided with a spherical rolling element (3) in each corresponding sphere pit (4); Outer shroud (1) equates with the width of interior ring (2), it is characterized in that: said bearing also comprises two ring retainers (5) and a plurality of pipe type rivet (6), and the width of two ring retainers (5) equates; Two ends between outer shroud (1) and the interior ring (2) respectively form a ring cavity; Be provided with a ring retainer (5) in each ring cavity, ring retainer (5) is provided with a plurality of pockets hole (7) with a plurality of spherical rolling elements (3) opposite position place, and being uniformly distributed along the circumference on the ring retainer (5) is provided with a plurality of rivet holes (8); Be provided with a pipe type rivet (6) in the rivet hole (8) of each the corresponding setting on two ring retainers (5); The two ends flange of pipe type rivet (6) is arranged on the exterior edge face of corresponding ring retainer (5), and two ring retainers (5) connect through a plurality of pipe type rivets (6), and the width of outer shroud (1) is less than two ring retainers (5) width sum.
2. according to the said ultralow temperature liquid pump of claim 1 bearing, it is characterized in that: pipe type rivet (6) is the stainless steel soft-state tubular-shank rivet.
3. according to claim 1 or 2 said ultralow temperature liquid pump bearings, it is characterized in that: two ring retainers (5) width sum is 43 ~ 44mm.
4. according to the said ultralow temperature liquid pump of claim 1 bearing, it is characterized in that: outer shroud (1) and interior ring (2) are processed by stainless steel material.
5. according to the said ultralow temperature liquid pump of claim 1 bearing, it is characterized in that: the quantity of spherical rolling element (3) is eight ~ ten.
6. according to claim 1 or 2 said ultralow temperature liquid pump bearings, it is characterized in that: the quantity of pipe type rivet (6) is eight ~ ten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103257282A CN102797747A (en) | 2012-09-05 | 2012-09-05 | Bearing for ultralow-temperature liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103257282A CN102797747A (en) | 2012-09-05 | 2012-09-05 | Bearing for ultralow-temperature liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102797747A true CN102797747A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103257282A Pending CN102797747A (en) | 2012-09-05 | 2012-09-05 | Bearing for ultralow-temperature liquid pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN102797747A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266218A (en) * | 2013-06-06 | 2013-08-28 | 中航工业哈尔滨轴承有限公司 | Steel bearing part for process of eliminating mixed crystals and machining method of steel bearing part |
| CN106224386A (en) * | 2016-08-26 | 2016-12-14 | 洛阳轴研科技股份有限公司 | A kind of bearing and retainer thereof |
| CN107768951A (en) * | 2017-09-30 | 2018-03-06 | 侯明旺 | Rotary electrical apparatus is quiet, streaming current, signal adapter and application thereof |
-
2012
- 2012-09-05 CN CN2012103257282A patent/CN102797747A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103266218A (en) * | 2013-06-06 | 2013-08-28 | 中航工业哈尔滨轴承有限公司 | Steel bearing part for process of eliminating mixed crystals and machining method of steel bearing part |
| CN106224386A (en) * | 2016-08-26 | 2016-12-14 | 洛阳轴研科技股份有限公司 | A kind of bearing and retainer thereof |
| CN106224386B (en) * | 2016-08-26 | 2019-09-06 | 洛阳轴承研究所有限公司 | A kind of bearing and its retainer |
| CN107768951A (en) * | 2017-09-30 | 2018-03-06 | 侯明旺 | Rotary electrical apparatus is quiet, streaming current, signal adapter and application thereof |
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Application publication date: 20121128 |