CN207735861U - A kind of tooling for bearing liquid nitrogen frozen - Google Patents
A kind of tooling for bearing liquid nitrogen frozen Download PDFInfo
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- CN207735861U CN207735861U CN201721709216.0U CN201721709216U CN207735861U CN 207735861 U CN207735861 U CN 207735861U CN 201721709216 U CN201721709216 U CN 201721709216U CN 207735861 U CN207735861 U CN 207735861U
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- liquid nitrogen
- tooling
- lid
- nitrogen frozen
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Abstract
The utility model is related to liquid nitrogen frozen technical fields, disclose a kind of tooling for bearing liquid nitrogen frozen, including：Cylindrical cylinder, be connected to the cylinder bottom bottom plate, be covered on the lid on the cylinder top, the seal chamber for placing bearing is formed between the bottom plate, cylinder, lid, the cylinder includes madial wall and lateral wall, it is formed with cavity between the madial wall and the lateral wall, thermal insulation material is filled in the cavity.The beneficial effects of the utility model are：By the way that thermal insulation material is arranged between madial wall and lateral wall, cylinder top cover sets lid, and bearing is positioned in the seal chamber, can completely cut off external temperature, improves heat insulation effect.
Description
Technical field
The utility model is related to liquid nitrogen frozen technical fields, more particularly to a kind of tooling for bearing liquid nitrogen frozen.
Background technology
During shipbuilding, according to the mounting process of thordon bearings, to make bearing be easy to be inserted in stern pipe, bearing is being pacified
It needs to do freezing processing with liquid nitrogen or dry ice before dress, bearing size is made to be retracted to tolerance interval.
The structure of thordon bearings is cylindrical on the whole, most of to select liquid nitrogen freezing, uses the cylinder pair with sealing
Thordon bearings are freezed.Thordon bearings used at present freeze tooling, though the cylindrical shape of mounting process requirement, external also band
There is insulating layer, but still has the following defects：Lid often is replaced with temporal material in freezing, liquid nitrogen is easy during bearing freezing
Volatilization, refrigerating effect is not good enough, in order to achieve the effect that requirement, need to expend more liquid nitrogen, longer cooling time.It is cold to improve
But efficiency and cost is reduced, is badly in need of a kind of tooling that cooling efficiency is high and is used for bearing liquid nitrogen frozen.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of tooling for bearing liquid nitrogen frozen,
It can effectively improve cooling efficiency, reduce cost.
To achieve the goals above, the utility model provides a kind of tooling for bearing liquid nitrogen frozen comprising：Cylinder
The cylinder of shape, be connected to the cylinder bottom bottom plate, be covered on the lid on the cylinder top, the bottom plate, cylinder, lid
Form seal chamber for placing bearing between body, the cylinder includes madial wall and lateral wall, the madial wall and described outer
It is formed with cavity between side wall, thermal insulation material is filled in the cavity.
Preferably, the inlet and air hole for penetrating through its upper and lower surface, the injection are offered on the lid
Mouthful and the air hole in be detachably connected respectively be useful for sealing the inlet and for sealing the saturating of the air hole
Gas connector.
Preferably, the fill nipple is all made of with the inlet, the ventilative connector with the air hole
It is threadedly coupled.
Preferably, the thermal insulation material is prefabricated wrapping cotton.
Preferably, it is also associated with lifting lug on the lid.
Preferably, the surface of the cylinder and the surface of the lid are coated with epoxy-based lacquers.
Preferably, the cylinder is used with the bottom plate and is welded to connect.
The utility model provides a kind of tooling for bearing liquid nitrogen frozen, and the bucket of upper opening is made of cylinder, bottom plate
Shape structure, thordon bearings are positioned in this barrel shaped structure, and cylinder is made of madial wall and lateral wall, and the madial wall and described
It is filled with thermal insulation material between lateral wall, and the upper cap of cylinder is equipped with lid, can effectively completely cut off external raising freezing efficiency.
Description of the drawings
Fig. 1 is a kind of front view of tooling for bearing liquid nitrogen frozen in the utility model embodiment；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the vertical view of Fig. 2.
In figure, 10, cylinder；11, madial wall；12, lateral wall；13, cavity；14, thermal insulation material；20, bottom plate；30, lid；
31, inlet；32, air hole；33, lifting lug；40, liner；50, grouting socket；60, ventilative interface.
Specific implementation mode
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
As shown in Figure 1-Figure 3, a kind of tooling for bearing liquid nitrogen frozen of the preferred embodiment in the utility model, packet
It includes：Cylindrical cylinder 10, be connected to the cylinder 10 bottom bottom plate 20, be covered on the lid on 10 top of the cylinder
30, the seal chamber for placing bearing is formed between the bottom plate 20, cylinder 10, lid 30, the cylinder 10 includes madial wall
11 and lateral wall 12, cavity 13 is formed between the madial wall 11 and the lateral wall 12, filled with protecting in the cavity 13
Adiabator 14.Bearing when liquid nitrogen frozen thordon bearings, is positioned over 10 He of cylinder by its whole shape cylindrical in shape of the structure of thordon bearings
Bottom plate 20 is formed by space, due to being provided with thermal insulation material 14, and 10 upper cover of cylinder between madial wall 11 and lateral wall 12
Equipped with lid 30, outside can be completely cut off well, liquid nitrogen is not volatile during bearing freezing, improves freezing efficiency.
The overall structure of thordon bearings is cylindrical shape, based on the above-mentioned technical proposal, in order to coordinate thordon bearings to keep it more preferable
Ground is positioned in seal chamber, phenomena such as preventing bearing from toppling in placement process, is provided in the present embodiment and a kind of being used for axis
The tooling of liquid nitrogen frozen is held, the liner 40 upwardly extended is additionally provided on the bottom plate 20, the liner 40 is cylindrical and described
The height of liner 40 is less than the height of the cylinder 10, and convenient cap sets lid 30, and when freezing thordon bearings, bearing is set in liner
40 outside.Illustratively, the liner 40 is overlapped with the axle center of the cylinder 10.
Specifically, the inlet 31 and air hole 32 for penetrating through its upper and lower surface, the injection are offered on the lid 30
The fill nipple 50 for being useful for sealing the inlet 31 is detachably connected in mouth 31 and the air hole 32 respectively and for close
Seal the ventilative connector 60 of the air hole 32.Sprue gate 31 and air hole 32 are offered on lid 30, can not had to fully open
Lid 30, need to only open inlet 31 can inject liquid nitrogen out of inlet 31, to avoid liquid nitrogen volatilization from improving freezing efficiency,
It injects during liquid nitrogen, while needing to open air hole 32, the upper layer air of seal chamber is discharged from air hole 32, is conducive to liquid nitrogen
Injection.
Preferably, in order to open and easy to connect, the fill nipple 50 and the inlet 31, the ventilative connector 60
It is all made of and is threadedly coupled with the air hole 32.
Preferably, in order to improve heat insulation, the thermal insulation material 14 is prefabricated wrapping cotton.
In the present embodiment, it is also associated with lifting lug 33 on the lid 30, facilitates the opening and closing of lid 30.It is exemplary
Ground, is symmetrical arranged that there are two the lifting lugs 33 on the lid 30, can smoothly take off the open and close lid 30.It is exemplary
The outside on ground, the cylinder 10 is also connected with lifting lug, conveniently slings movement.
In order to improve the Corrosion Protection of the tooling for bearing liquid nitrogen frozen, increase service life, the present embodiment
In, the surface of the surface of the cylinder 10 and the lid 30 is coated with epoxy-based lacquers.
In the present embodiment, for easy to process, control manufacturing cost, and ensure secured, the cylinder 10 and the institute of structure
State bottom plate 20, the liner 40 is all made of with the bottom plate 20 and is welded to connect.Illustratively, in order to reduce cost, the liner
40 are made of columnar side plate and circular top plate, and the bottom margin of the side plate of tubular is welded with the bottom plate 20, the top
Plate is welded in the top of the side plate, and the liner 40 is hollow cylinder.
Illustratively, the madial wall 11, lateral wall 12, bottom plate 20, lid 30, side plate, top plate are 10 ㎜ by thickness
Steel plate be made；The filling thickness of the thermal insulation material 14 is set as 75 ㎜.The making of above-mentioned tooling by rolling, welding completion,
After the completion of welding, to improve cooling effect, it need to ensure tooling ne-leakage, leakproofness everywhere can be detected by infiltration test.
To sum up, the utility model embodiment provides a kind of tooling for bearing liquid nitrogen frozen, by 20 groups of cylinder 10, bottom plate
At barrel shaped structure, thordon bearings are positioned in this barrel shaped structure, and cylinder 10 is made of madial wall 11 and lateral wall 12, and described
Thermal insulation material 14 is filled between madial wall 11 and the lateral wall 12, and the upper cap of cylinder 10 is equipped with lid 30, at this time axis
Bearing can effectively completely cut off outside and improve freezing efficiency in the seal chamber that cylinder 10, bottom plate 20, lid 30 form.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (7)
1. a kind of tooling for bearing liquid nitrogen frozen, which is characterized in that including：Cylindrical cylinder (10), be connected to it is described
The bottom plate (20) of the bottom of cylinder (10), the lid (30) for being covered on the cylinder (10) top, the bottom plate (20), cylinder
(10), the seal chamber for placing bearing is formed between lid (30),
The cylinder (10) includes madial wall (11) and lateral wall (12), between the madial wall (11) and the lateral wall (12)
It is formed with cavity (13), thermal insulation material (14) is filled in the cavity (13).
2. being used for the tooling of bearing liquid nitrogen frozen as described in claim 1, which is characterized in that offered on the lid (30)
The inlet (31) and air hole (32) of its upper and lower surface are penetrated through, it respectively can in the inlet (31) and the air hole (32)
Dismantling connection is useful for sealing the fill nipple (50) of the inlet (31) and for sealing the ventilative of the air hole (32)
Connector (60).
3. being used for the tooling of bearing liquid nitrogen frozen as claimed in claim 2, which is characterized in that the fill nipple (50) and institute
State inlet (31), the ventilative connector (60) is all made of with the air hole (32) and is threadedly coupled.
4. the tooling as claimed in any one of claims 1-3 for bearing liquid nitrogen frozen, which is characterized in that the thermal insulating material
Expect that (14) are prefabricated wrapping cotton.
5. being used for the tooling of bearing liquid nitrogen frozen as claimed in claim 4, which is characterized in that be also connected on the lid (30)
There is lifting lug (33).
6. as claimed in claim 5 be used for bearing liquid nitrogen frozen tooling, which is characterized in that the surface of the cylinder (10) and
The surface of the lid (30) is coated with epoxy-based lacquers.
7. being used for the tooling of bearing liquid nitrogen frozen as claimed in claim 6, which is characterized in that the cylinder (10) and the bottom
Plate (20) is used and is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709216.0U CN207735861U (en) | 2017-12-07 | 2017-12-07 | A kind of tooling for bearing liquid nitrogen frozen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721709216.0U CN207735861U (en) | 2017-12-07 | 2017-12-07 | A kind of tooling for bearing liquid nitrogen frozen |
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| Publication Number | Publication Date |
|---|---|
| CN207735861U true CN207735861U (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721709216.0U Active CN207735861U (en) | 2017-12-07 | 2017-12-07 | A kind of tooling for bearing liquid nitrogen frozen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914148A (en) * | 2017-12-07 | 2018-04-17 | 广州文冲船厂有限责任公司 | A kind of frock for bearing liquid nitrogen frozen |
-
2017
- 2017-12-07 CN CN201721709216.0U patent/CN207735861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914148A (en) * | 2017-12-07 | 2018-04-17 | 广州文冲船厂有限责任公司 | A kind of frock for bearing liquid nitrogen frozen |
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