CN204885398U - Radar antenna seat with anti -overflow oil structure - Google Patents
Radar antenna seat with anti -overflow oil structure Download PDFInfo
- Publication number
- CN204885398U CN204885398U CN201520538233.7U CN201520538233U CN204885398U CN 204885398 U CN204885398 U CN 204885398U CN 201520538233 U CN201520538233 U CN 201520538233U CN 204885398 U CN204885398 U CN 204885398U
- Authority
- CN
- China
- Prior art keywords
- base
- oil
- radar antenna
- structure according
- rotating disk
- 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.)
- Active
Links
Abstract
Oil spilling problem to current radar antenna seat, the utility model provides a radar antenna seat with anti -overflow oil structure which comprises carousel, base and the floating bearing, be equipped with the floating bearing in the base, fall into no oil pocket and store oil chamber by the floating bearing with the base, it has a hole to open on the bottom plate of the regional base in no oil pocket place, is furnished with the pipe nos oil pocket place region downthehole, outside that to not have oil pocket and a base through the pipe promptly switches on each other. Profitable technological effect: the utility model discloses the pressure of realizing no oil pocket and store oil chamber is the same to the oil spilling problem that the radar antenna seat leads to has been solved because of atmospheric pressure difference.
Description
Technical field
The utility model is applied to radar equipment technical field, is specially a kind of radar antenna base with preventing oil spill structure.
Background technology
After radar system has been set up, ensure that radar antenna base can not long continuous operation in oil tight situation, and oil-leakage-prevention is one of difficult point of most critical always.All measures to prevent oil leakage can be taked in the structural design of therefore antenna pedestal, but antenna pedestal causes siphonage often out in the cold without the air pressure change between oil pocket and oil storage chamber.Three conditions below meeting, in oil storage chamber, lubricating oil can enter without oil pocket, causes radar to there is the risk of antenna pedestal oil impregnate:
When 1, falling more at temperature;
2, without the cavity that oil pocket is closed;
3, comparatively large without oil pocket space, can cause and obviously reduce without oil pocket volume of air.
According to the gas equation for ideal gases computing formula disregarding viscosity, there is equation for ideal gases:
Wherein: P-pressure, V-volume, T-absolute temperature, N-amount of substance, R-gas constant.
As can be seen from above formula, when temperature Change, gas pressure and volume can change thereupon.Assumed initial state atmospheric pressure is normal pressure
, temperature is
, then, after temperature reduces, ensure to balance without oil pocket air pressure and oil storage chamber, then will reduce without oil pocket gas volume, at this moment then likely oil storage chamber lubricating oil be sucked; Otherwise, after temperature rises, ensure to balance without oil pocket air pressure and oil storage chamber, will become large without oil pocket gas volume, due to oily in bottom surface without oil pocket, so time can only produce gas discharging without oil pocket; Along with the lifting of temperature replaces, then there will be obvious cell breath without oil cavity.According to consulting totally 47 days weather conditions on city of China 14 to May 30 April in 2013, wherein have 17 days temperature difference more than more than 10 degree, maximum temperature difference 14 degree, has 4 days; Therefore there will be obvious breathing phenomenon.
According to equation for ideal gases, if constant without oil chamber volume air pressure, then to reduce (by former without oil pocket gas volume
), in formula, n and R does not vary with temperature, and has:
。
Because turntable is in the good seal performance without oil cavity place, therefore when temperature reduces, when reducing without oil pocket gas volume, the oil of oil storage chamber can only be sucked in supplementary by the gap of the inside and outside circle of pivoting support.For certain model radar, under the environment of aforementioned temperature change, in the time of 47 days, oil storage chamber is inhaled into without oil pocket 20.89 liters, causes oil storage chamber level height to drop to 41.11mm. from 62mm and causes gear lubrication insufficient, has a strong impact on radar antenna base useful life.
Because existing radar lacks preventing oil spill structure, after causing radar antenna base long-time running, easily there is leakage of oil situation; Although some radars have installed breather valve additional, structural design exists certain design defect, thoroughly can not solve the air pressure balance problem without oil cavity and store oil cavity.
Utility model content
The purpose of this utility model is the deficiency in order to make up prior art, designs a kind of preventing oil spill structure of improvement, to solve the fault of construction of existing radar antenna base, thus reaches oil-leakage-prevention object.
The utility model is achieved through the following technical solutions:
There is the radar of preventing oil spill structure, comprise rotating disk 10, base 4 and floating bearing 7; Described rotating disk 10 is annular; Antenna pedestal 4 is provided with in the outside of rotating disk 10; Described base 4 is the annular housing of hollow; Floating bearing 7 is provided with in base 4; By floating bearing 7, base 4 is divided into without oil pocket 1 and oil storage chamber 5; In addition:
The base plate of the base 4 without oil pocket 1 region has a hole, in the hole without oil pocket 1 region, is furnished with pipe 8; Namely pass through pipe 8 by without the outside mutual conduction of oil pocket 1 with base 4, realize base 4 with outside without draught head.
The utility model has the advantages that:
The utility model structure simply, is easily installed, under the prerequisite of agent structure not changing radar antenna base, can ensure that radar antenna base internal cavity is identical with outside atmospheric pressure, thus gear lubricant can not spilling causes oil leakage phenomenon occurs because of atmospheric pressure difference.Advantage of the present utility model is especially outstanding in the following areas:
1. the utility model is when turntable runs, and ensure that and the lubricating oil in oil storage chamber will be caused to be extruded because the continuous rotation of draught head, pivoting support outer ring causes the reasons such as the continuous fluctuation of inner chamber trapped fuel, thus solve oil spilling phenomenon.
2. pipe 8 of the present utility model, straight coupling 2, breather valve 3 are arranged on the lower plane of base 4, and guarantee can not interfere with other parts of radar system.
Accompanying drawing explanation
Fig. 1 schematic perspective view of the present utility model.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is Fig. 2 structure A-A revolved sectional view.
Embodiment
See Fig. 1, there is the radar of preventing oil spill structure, comprise rotating disk 10, antenna pedestal 4 and floating bearing 7; Described rotating disk 10 is annular; Base 4 is provided with in the outside of rotating disk 10; Described base 4 is the annular housing of hollow; Floating bearing 7 is provided with in base 4; By floating bearing 7, base 4 is divided into without oil pocket 1 and oil storage chamber 5, refers to Fig. 2; In addition: on the base plate of the base 4 without oil pocket 1 region, have a hole, in the hole without oil pocket 1 region, be furnished with pipe 8; Namely pipe 8 is passed through by the outside mutual conduction without oil pocket 1 and base 4.
See Fig. 3, furtherly: the top end opening of pipe 8 is near the end face of the cavity of antenna pedestal 4.
See Fig. 3, furtherly: the bottom end opening of pipe 8 extends downward the below of antenna pedestal 4 bottom surface.
See Fig. 3, furtherly: the bottom opening of pipe 8 is connected with straight coupling 2.
See Fig. 3, furtherly: described straight coupling 2 is bipass; The bottom opening of pipe 8 is connected with straight coupling 2 one end; Straight coupling 2 other end is connected with breather valve 3.
Furtherly: the model of breather valve 3 is SMC Products POVM12x1.5HA.
See Fig. 2, furtherly: on the top board of the antenna pedestal 4 of oil storage chamber 5 region, have a hole, in the hole of oil storage chamber 5 region, be furnished with metal respirator 6; Namely metal respirator 6 is passed through by the outside mutual conduction of oil storage chamber 5 with antenna pedestal 4.
Furtherly: the model of metal respirator 6 is Parker Products AB.1163.10.
See Fig. 3, furtherly: be provided with the step caved inward in the bottom of the curved wall of rotating disk 10; The lateral wall of rotating disk 10 step contacts with the madial wall of antenna pedestal 4; Rotating disk 10 near base 4 is provided with v-ring 9, realizes the sealing between base 4 and rotating disk 10 by v-ring 9.When can prevent antenna pedestal 4 and rotating disk 10 from relatively rotating, silt and moisture enter without oil pocket 1.
See Fig. 3, furtherly: the inner side being positioned at oil storage chamber 5 without oil pocket 1.
The utility model by pipe 8, straight coupling 2, breather valve 3 will without oil pocket 1 and ft connection, even if identical with atmospheric pressure without oil pocket 1.The utility model realizes oil storage chamber 5 by metal respirator 6 and is connected with air, namely consistent with the atmospheric pressure in the external world.Thus ensure that the pressure of two cavitys is identical, can not occur due to draught head, make the gear lubricant in oil storage chamber 5 be entered without oil pocket 1 by the roller between the inside and outside circle of pivoting support 7 and Leakage occurs.
Claims (10)
1. there is the radar antenna base of preventing oil spill structure, comprise rotating disk (10), base (4) and floating bearing (7); Described rotating disk (10) is annular; Base (4) is provided with in the outside of rotating disk (10); The annular housing that described base (4) is hollow; Floating bearing (7) is provided with in base (4); By floating bearing (7), antenna pedestal (4) is divided into without oil pocket (1) and oil storage chamber (5); It is characterized in that:
The base plate of the base (4) without oil pocket (1) region has a hole, in the hole without oil pocket (1) region, is furnished with pipe (8); Namely will without the outside mutual conduction of oil pocket (1) with antenna pedestal (4) by pipe (8).
2. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: the top end opening of pipe (8) is near the end face of the cavity of base (4).
3. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: the bottom end opening of pipe (8) is positioned at the below of base (4) bottom surface.
4. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: the bottom opening of pipe (8) is connected with straight coupling (2).
5. the radar antenna base with preventing oil spill structure according to claim 4, is characterized in that: described straight coupling (2) is bipass; The bottom opening of pipe (8) is connected with straight coupling (2) one end; Straight coupling (2) other end is connected with breather valve (3).
6. the radar antenna base with preventing oil spill structure according to claim 5, is characterized in that: the model of breather valve (3) is POVM12x1.5HA.
7. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: on the top board of the base (4) of oil storage chamber (5) region, have a hole, in the hole of oil storage chamber (5) region, be furnished with metal respirator (6); Namely metal respirator (6) is passed through by the outside mutual conduction of oil storage chamber (5) with base (4).
8. the radar antenna base with preventing oil spill structure according to claim 7, is characterized in that: the model of metal respirator (6) is AB.1163.10.
9. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: be provided with in the bottom of the curved wall of rotating disk (10) step caved inward; The lateral wall of rotating disk (10) step contacts with the madial wall of antenna pedestal (4); Rotating disk (10) near base (4) is provided with v-ring (9), realizes the sealing between base (4) and rotating disk (10) by v-ring (9).
10. the radar antenna base with preventing oil spill structure according to claim 1, is characterized in that: the inner side being positioned at oil storage chamber (5) without oil pocket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538233.7U CN204885398U (en) | 2015-07-23 | 2015-07-23 | Radar antenna seat with anti -overflow oil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538233.7U CN204885398U (en) | 2015-07-23 | 2015-07-23 | Radar antenna seat with anti -overflow oil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204885398U true CN204885398U (en) | 2015-12-16 |
Family
ID=54829736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538233.7U Active CN204885398U (en) | 2015-07-23 | 2015-07-23 | Radar antenna seat with anti -overflow oil structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204885398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154233A (en) * | 2016-08-09 | 2016-11-23 | 宁波市鄞州箭精密机械有限公司 | Mechanical scan radar |
-
2015
- 2015-07-23 CN CN201520538233.7U patent/CN204885398U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154233A (en) * | 2016-08-09 | 2016-11-23 | 宁波市鄞州箭精密机械有限公司 | Mechanical scan radar |
| CN106154233B (en) * | 2016-08-09 | 2018-05-15 | 宁波市鄞州一箭精密机械有限公司 | Mechanical scan radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204025801U (en) | Inhalation valve with heat insulation function | |
| CN204885398U (en) | Radar antenna seat with anti -overflow oil structure | |
| CN205002491U (en) | Install freezer that hinders white device | |
| CN205860642U (en) | A kind of ventilating valve apparatus being applied to refrigerator-freezer | |
| CN203285715U (en) | Horizontal split pump | |
| CN203412050U (en) | Building connecting piece | |
| CN202441275U (en) | Drilling rod pin-releasing square head of automatic pin-releasing inner core for rotary digging machine | |
| CN206221516U (en) | A kind of self-lubricating plain bearing seat | |
| CN202746748U (en) | Packing sealing structure for gate valve | |
| CN110242777B (en) | Liquid seal safety breather valve capable of realizing positive pressure backflow | |
| CN204212897U (en) | Adopt the water turbine for cooling tower main shaft structure of grease lubrication | |
| CN203051707U (en) | Ventilating seal structure used for transmission box | |
| CN206072317U (en) | Decelerator for vehicle and the vehicle with which | |
| CN112483661A (en) | Exhaust structure suitable for generator lubricating oil circulation pipeline system | |
| CN112483696A (en) | Positive and negative pressure breathing device for fire fighting truck | |
| CN110131453A (en) | A kind of safe breather valve of fluid-tight of positive and negative pressure reflux | |
| CN106949247B (en) | A kind of breather valve of anti-canting oil leak for fuel tank | |
| CN208900685U (en) | A kind of anti-spraying oil ventilation device for transmission device | |
| CN214577829U (en) | Special eccentric seal cover for centrifugal blower bearing | |
| CN205315790U (en) | Seal structure for breather valve | |
| CN204784685U (en) | Gas circuit seal structure | |
| CN203686146U (en) | Self-lubricating seal ring | |
| CN205534256U (en) | Combination discharge valve | |
| CN202056349U (en) | High-capacity four-way reversal valve used for refrigeration system | |
| CN202598090U (en) | Pipeline joint for lubricating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |