CN112629855B - Bearing sealing performance detection device - Google Patents
Bearing sealing performance detection device Download PDFInfo
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- CN112629855B CN112629855B CN202011414719.1A CN202011414719A CN112629855B CN 112629855 B CN112629855 B CN 112629855B CN 202011414719 A CN202011414719 A CN 202011414719A CN 112629855 B CN112629855 B CN 112629855B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a bearing sealing performance detection device, and belongs to the technical field of detection equipment. A bearing sealing performance detection device comprises a bottom plate, wherein a first fixing seat, a positioning block and a second fixing seat are sequentially connected to the top wall of the bottom plate from left to right, the first fixing seat is fixedly connected to the top wall of the bottom plate, the second fixing seat is slidably connected to the top wall of the bottom plate, a first fixing plugging component is connected to the inner wall of the first fixing seat, an air cylinder is connected to the outer wall of the second fixing seat, the output end of the air cylinder penetrates through the second fixing seat and is connected with a connecting seat, the connecting seat is slidably connected to the top wall of the bottom plate, a second fixing plugging component is connected to the inner wall of the connecting seat, the first fixing plugging component is connected with an air leakage detection component, and the second fixing plugging component is connected with an air pump; the bearing detection device is simple in structure and convenient to use, can effectively fix and plug a bearing to be detected, and adopts a physical method to detect the bearing, so that the detection accuracy is effectively improved.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a bearing sealing performance detection device.
Background
A bearing is a mechanical element that limits relative motion to a desired range of motion and reduces friction between moving parts. The design of the bearings can provide free linear motion or free rotation about a fixed axis of the moving part, and can also prevent motion by controlling the vector of the normal force acting on the moving part; most bearings facilitate the required motion by minimizing friction; bearings can be broadly classified according to different methods of operation type, allowable movement or direction of load applied to the part.
Through retrieval, the invention patent with publication number CN108562400A discloses a bearing leakproofness detection device, which comprises a base and is characterized in that: the base is provided with a supporting panel, the supporting panel is provided with a supporting frame, a lifting cylinder is fixedly mounted on the supporting frame, the lower end of a lifting piston rod is connected with a sealing cover, the side wall of the lifting sealing cover is connected with a pressurizing pipeline, the pressurizing pipeline is connected with a pressurizing pump, the supporting panel is arranged below the lifting sealing cover, the supporting panel is provided with a plurality of bearing placing holes, and the supporting panel is provided with a plurality of through holes; the bearing airtightness testing device is simple in structure, high in bearing airtightness testing speed, high in operation speed and high in detection efficiency.
Through retrieval, the utility model patent with publication number CN203465063U discloses a device for detecting the sealing performance of a bearing of a clutch of a silicone oil fan, which comprises a base, a cylinder, a tooling plate, a lower tooling, an upper tooling and a water filling device; the cylinder is fixed above the base, and a tooling plate is connected below the cylinder; a lower tool is fixed on the base; an upper tool is arranged at the bottom of the tool plate; the lower tool and the upper tool are matched in shape and corresponding in position, and are in a sealing state when matched; the water filling device is connected with the lower tool pipeline; the upper tool is connected with an air inlet pipe. The utility model discloses a very simple structure can effectually improve detection efficiency under the prerequisite of guaranteeing detection quality, has ensured simultaneously that low cost can be accepted for most enterprises and has adopted, can guarantee to be used for silicon oil fan clutch bearing in batches to carry out whole factory detections, the effectual bearing quality of having guaranteed, has moreover and maintains advantages such as convenient, equipment duration service time is long.
Based on the two patents and by combining with the prior art, the inventor finds that the conventional equipment can be used conventionally, but the structure is simpler, the stability performance is poorer in practical application, so that a detection result has certain errors, and the operation is troublesome, so that the bearing sealing performance detection device in the prior art still has certain defects.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a bearing sealing performance detection device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a bearing leakproofness detection device, includes the bottom plate, first fixing base, locating piece and second fixing base have connected gradually from a left side to the right side on the bottom plate roof, first fixing base fixed connection is on the bottom plate roof, second fixing base sliding connection is on the bottom plate roof, be connected with first fixed shutoff subassembly on the first fixing base inner wall, be connected with the cylinder on the second fixing base outer wall, the cylinder output passes the second fixing base and is connected with the connecting seat, connecting seat sliding connection is on the bottom plate roof, be connected with the fixed shutoff subassembly of second on the connecting seat inner wall, the fixed shutoff subassembly of first fixed shutoff subassembly and second all cooperatees with the locating piece, be connected with first gas outlet on the first fixed shutoff subassembly outer wall, first gas outlet is connected with the gas leakage detection subassembly through first connecting hose, be provided with the air inlet on the fixed shutoff subassembly outer wall of second, the air inlet is connected with the air pump through second connecting hose, gas leakage detection subassembly and air pump are all connected on the bottom plate roof.
Preferably, a slide rail is arranged on the top wall of the bottom plate, and the connecting seat is connected to the top wall of the slide rail in a sliding manner.
Preferably, the fixed shutoff subassembly of first fixed shutoff subassembly and second all includes fixed cover, the inside sliding connection of fixed cover has the shutoff board, sliding connection has annular cardboard on the shutoff board roof wall, be connected with drive assembly between annular cardboard outer wall and the fixed cover inner wall, it has the second gas outlet to cut on the shutoff board roof, the second gas outlet is to the intercommunication with the air inlet.
Preferably, the transmission assembly comprises a first connecting plate, a second connecting plate and a third connecting plate, the first connecting plate is connected to the inner wall of the fixing sleeve, the second connecting plate is connected to the outer wall of the annular clamping plate, one end of the third connecting plate is rotatably connected with the first connecting plate, and the other end of the third connecting plate is rotatably connected with the second connecting plate.
Preferably, the top wall of the plugging plate is further provided with a sliding groove, and the annular clamping plate is connected in the sliding groove in a sliding mode.
Preferably, still be connected with the elastic component on the shutoff board diapire, the one end that the shutoff board was kept away from to the elastic component is connected on the inside diapire of fixed cover.
Preferably, the annular clamping plates are provided with 3-4 groups and are mutually matched, and the inner walls of the annular clamping plates are connected with sealing rubber pads.
Preferably, the first fixed plugging component and the second fixed plugging component are two groups which are symmetrically arranged with each other.
Preferably, the gas leakage detection assembly comprises a fixing plate and a barrel body, the fixing plate is connected to the top wall of the bottom plate, the barrel body is connected to the top wall of the fixing plate, the first connecting hose is connected to the outer wall of the bottom of the barrel body, and liquid is filled in the barrel body.
Preferably, the positioning blocks are arranged in two groups, and the two groups of positioning blocks are both of V-shaped structures.
Compared with the prior art, the invention provides a bearing sealing performance detection device, which has the following beneficial effects:
1. this bearing leakproofness detection device, through the fixed shutoff subassembly of the first fixed shutoff subassembly and the second that set up, and then be convenient for treat the bearing that detects fix with the shutoff, then detect it through the gas leakage subassembly that sets up, easy operation, convenient to use, and stability is higher, and then improve the precision of testing result effectively.
2. This bearing leakproofness detection device adopts the physical method to detect the leakproofness of bearing through the leak detection subassembly that sets up, and then makes the testing result more accurate.
3. This bearing leakproofness detection device, through the locating piece that sets up, and then be convenient for treat the bearing that detects and tentatively fix a position, be V type structure through the locating piece, and then make its bearing that is applicable to different models, and then improve the device's practicality effectively.
The device has the advantages that the structure is simple, the use is convenient, the bearing to be detected can be effectively fixed and blocked, and the bearing to be detected can be detected by adopting a physical method, so that the detection accuracy is effectively improved.
Drawings
Fig. 1 is a first structural schematic diagram of a bearing tightness detection device provided by the invention;
fig. 2 is a schematic structural diagram of a bearing tightness detection device according to the present invention;
fig. 3 is a front view of a bearing sealability detection apparatus according to the present invention;
fig. 4 is a third schematic structural diagram of a bearing tightness detection device provided by the present invention;
fig. 5 is a first structural schematic diagram of a first fixed plugging assembly and a second fixed plugging assembly of a device for detecting sealing performance of a bearing according to the present invention;
fig. 6 is a second structural schematic diagram of a first fixed plugging component and a second fixed plugging component of the device for detecting the sealing performance of a bearing according to the present invention;
fig. 7 is a first schematic diagram illustrating an explosive structure of a first fixed blocking assembly and a second fixed blocking assembly of a bearing sealability detection device according to the present invention;
fig. 8 is a schematic diagram of an explosion structure of a first fixed blocking assembly and a second fixed blocking assembly of a bearing sealability detection apparatus according to the present invention.
In the figure: 1. a base plate; 101. positioning blocks; 102. a first fixed seat; 103. a second fixed seat; 104. a cylinder; 105. a connecting seat; 106. a slide rail; 2. a first fixed plugging component; 201. a first connecting hose; 3. a second fixed plugging component; 301. a second connecting hose; 302. fixing a sleeve; 303. a plugging plate; 3031. a second air outlet; 3032. a chute; 304. an annular clamping plate; 305. a transmission assembly; 3051. a first connecting plate; 3052. a second connecting plate; 3053. a third connecting plate; 306. an elastic member; 307. sealing the rubber gasket; 4. an air pump; 5. a gas leakage detection assembly; 501. a fixing plate; 502. a barrel body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-4, a bearing sealing performance detection device, which comprises a bottom plate 1, a first fixing seat 102, a positioning block 101 and a second fixing seat 103 are sequentially connected to the top wall of the bottom plate 1 from left to right, the first fixing seat 102 is fixedly connected to the top wall of the bottom plate 1, the second fixing seat 103 is slidably connected to the top wall of the bottom plate 1, a first fixed plugging component 2 is connected to the inner wall of the first fixing seat 102, an air cylinder 104 is connected to the outer wall of the second fixing seat 103, an output end of the air cylinder 104 penetrates through the second fixing seat 103 and is connected with a connecting seat 105, the connecting seat 105 is slidably connected to the top wall of the bottom plate 1, a second fixed plugging component 3 is connected to the inner wall of the connecting seat 105, the first fixed plugging component 2 and the second fixed plugging component 3 are both matched with the positioning block 101, a first air outlet is connected to the outer wall of the first fixed plugging component 2, the first air outlet is connected with an air leakage detection component 5 through a first connecting hose 201, an air inlet is arranged on the outer wall of the second fixed plugging component 3, the air inlet is connected with an air pump 4 through a second air leakage connecting hose 301, and the air pump detection component 5 and the air pump 4 are both connected to the top wall of the bottom plate 1.
The top wall of the bottom plate 1 is provided with a slide rail 106, and the connecting seat 105 is slidably connected to the top wall of the slide rail 106.
When the bearing detection device is used, a bearing to be detected is placed on the top wall of the positioning block 101, then the air cylinder 104 is started, the connecting seat 105 connected with the output end of the air cylinder is driven to slide along the sliding rail 106, so that the second fixed plugging component 3 connected to the inner wall of the connecting seat 105 is driven to slide along the sliding rail 106, the stability of the connecting seat 105 and the second fixed plugging component 3 in the moving process can be effectively improved through the arranged sliding rail 106, so that the second fixed plugging component 3 can be better matched with the bearing to be detected, and further the bearing to be detected can be better fixed and plugged, the detection of the bearing to be detected is facilitated, when the second fixed plugging component 3 abuts against the bearing to be detected, the position of the bearing to be detected on the positioning block 101 is driven to be finely adjusted and is enabled to be matched with the first fixed component 2 and the third fixed component 3, so that the bearing to be effectively fixed and plugged, when the fixed plugging of the bearing to be detected is completed, the air pump 4 is started, the second fixed and the bearing to be detected enters the second fixed component 3 through the second connecting hose 301, and the air pump 5, and the bearing to be detected, and the air pump detects whether the air leakage when the air pump enters the second fixed plugging component 3 and the air leakage and the air pump 5, and the air leakage detection device 5, and the air pump detects the air leakage through the air leakage detection device 5, easy operation, convenient to use, and stability is higher, and then improve the precision of testing result effectively, through the locating piece 101 that sets up, and then be convenient for treat the bearing that detects and tentatively fix a position, be the V type structure through locating piece 101, and then make it be applicable to the bearing of different models, and then improve the device's practicality effectively.
Example 2:
referring to fig. 1-8, a bearing sealing performance detection device, which is substantially the same as that in embodiment 1, further, a bearing sealing performance detection device, including a bottom plate 1, a first fixing seat 102, a positioning block 101 and a second fixing seat 103 are sequentially connected to a top wall of the bottom plate 1 from left to right, the first fixing seat 102 is fixedly connected to the top wall of the bottom plate 1, the second fixing seat 103 is slidably connected to the top wall of the bottom plate 1, a first fixed plugging component 2 is connected to an inner wall of the first fixing seat 102, an air cylinder 104 is connected to an outer wall of the second fixing seat 103, an output end of the air cylinder 104 passes through the second fixing seat 103 and is connected to a connecting seat 105, the connecting seat 105 is slidably connected to the top wall of the bottom plate 1, a second fixed plugging component 3 is connected to an inner wall of the connecting seat 105, the first fixed plugging component 2 and the second fixed plugging component 3 are both matched with the positioning block 101, a first air outlet is connected to an outer wall of the first fixed plugging component 2, the first air outlet is connected to an air leakage detection component 5 through a first connecting hose 201, an outer wall of the second fixed plugging component 3 is provided with an air inlet, an air pump 301, and an air pump 4 are both connected to the top wall of the bottom plate 1.
The top wall of the bottom plate 1 is provided with a slide rail 106, and the connecting seat 105 is slidably connected to the top wall of the slide rail 106.
First fixed shutoff subassembly 2 and the fixed shutoff subassembly 3 of second all include fixed cover 302, and fixed cover 302 inside sliding connection has shutoff board 303, and sliding connection has annular cardboard 304 on the shutoff board 303 roof, is connected with drive assembly 305 between annular cardboard 304 outer wall and the fixed cover 302 inner wall, cuts open on the shutoff board 303 roof and has second gas outlet 3031, second gas outlet 3031 and air inlet to the intercommunication.
The top wall of the plugging plate 303 is further provided with a sliding groove 3032, and the annular clamping plate 304 is slidably connected in the sliding groove 3032.
The bottom wall of the plugging plate 303 is further connected with an elastic part 306, and one end of the elastic part 306 far away from the plugging plate 303 is connected to the bottom wall inside the fixing sleeve 302.
The annular clamping plates 304 are provided with 3-4 groups, the annular clamping plates 304 are mutually matched, and the inner walls of the annular clamping plates 304 are connected with sealing rubber pads 307.
The first fixed plugging component 2 and the second fixed plugging component 3 are two groups which are symmetrically arranged.
When the fixed shutoff subassembly of second 3 offsets with the bearing that waits to detect, the bearing that waits to detect then can play certain thrust to the inside shutoff board 303 of fixed cover 302, and then drive shutoff board 303 and slide along fixed cover 302, when shutoff board 303 slides along fixed cover 302, then can drive the annular cardboard 304 that connects on its outer wall and slide along fixed cover 302, and then drive the third connecting plate 3053 that connects on its outer wall and slide and rotate along fixed cover 302, and then drive the second connecting plate 3052 of connecting on its outer wall and rotate, thereby make the contained angle between second connecting plate 3052 and the third connecting plate 3053 reduce, and then can drive annular cardboard 304 and slide along spout 3032 on shutoff board 303, and then press from both sides tightly fixedly to the bearing that shutoff board 303 offsets, and be connected with sealed cushion 307 on the annular cardboard 304 inner wall, and treat the bearing that detects and play good sealed effect, avoid its condition that takes place the gas leakage in the testing process and influence the degree of accuracy of detection result, treat through first fixed shutoff subassembly 2 and the fixed subassembly of second 3 that sets up for the symmetry, thereby the convenient fixed shutoff subassembly that seals the convenient fixed shutoff of the shutoff and the convenient fixed bearing that sets up effectively detects the stability of the convenient fixed bearing, and the convenient detection of the shutoff of the detection of the second, thereby the convenient fixed bearing that detects the stability of the high stability of the bearing that the detection of the shutoff and the detection of the convenient detection of the high stability of the shutoff and the convenient detection of the bearing.
Example 3:
referring to fig. 1 to 4, a bearing sealing performance testing apparatus is substantially the same as that of embodiment 1, and further, a gas leakage testing assembly 5 includes a fixing plate 501 and a barrel 502, the fixing plate 501 is connected to a top wall of a base plate 1, the barrel 502 is connected to a top wall of the fixing plate 501, a first connecting hose 201 is connected to an outer wall of a bottom of the barrel 502, and the barrel 502 is filled with liquid.
The positioning blocks 101 are provided in two sets, and the two sets of positioning blocks 101 are both V-shaped structures.
Through the gas leakage detection assembly 5 that sets up, when the bearing that detects exists the condition of gas leakage, the gas that enters into second fixed shutoff price 3 through air pump 4 then can loop through the bearing, first fixed shutoff subassembly 2 and first connecting hose 201 enter into the staving 502 inside, liquid is equipped with through the staving 502 inside, and then when the bearing exists the leakproofness improper then can make the liquid inside the staving 502 produce the bubble, and then whether convenient judgement bearing exists the condition of gas leakage, liquid is equipped with through the staving 502 inside, therefore the physics detection method that the gas leakage detection assembly 5 of this invention adopted, adopt the physics method to detect the leakproofness of bearing through the gas leakage detection assembly 5 that sets up, can and then make the testing result more accurate.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The utility model provides a bearing leakproofness detection device, includes bottom plate (1), its characterized in that, first fixing base (102), locating piece (101) and second fixing base (103) have connected gradually from a left side to the right side on bottom plate (1) roof, first fixing base (102) fixed connection is on bottom plate (1) roof, second fixing base (103) sliding connection is on bottom plate (1) roof, be connected with first fixed shutoff subassembly (2) on first fixing base (102) inner wall, be connected with cylinder (104) on second fixing base (103) outer wall, cylinder (104) output passes second fixing base (103) and is connected with connecting seat (105), connecting seat (105) sliding connection is on bottom plate (1) roof, be connected with the fixed shutoff subassembly of second (3) on connecting seat (105) inner wall, first fixed shutoff subassembly (2) and the fixed shutoff subassembly of second (3) all cooperate with locating piece (101), be connected with first gas outlet on first fixed shutoff subassembly (2) outer wall, first gas outlet is connected with gas leakage detection subassembly (5) through first connection hose (201), second gas pump (3) fixed shutoff subassembly (3) upper air inlet (4) is connected with air pump (3) detection hose (301) and air pump (3) top detection base (1), air pump (3) detection hose (3) top detection hose (1) is connected with air pump (4) on air inlet (1) the top On the wall, a sliding rail (106) is arranged on the top wall of the bottom plate (1), and the connecting seat (105) is connected to the top wall of the sliding rail (106) in a sliding manner;
the first fixed plugging component (2) and the second fixed plugging component (3) both comprise a fixed sleeve (302), a plugging plate (303) is slidably connected inside the fixed sleeve (302), an annular clamping plate (304) is slidably connected on the top wall of the plugging plate (303), a transmission component (305) is connected between the outer wall of the annular clamping plate (304) and the inner wall of the fixed sleeve (302), a second air outlet (3031) is chiseled on the top wall of the plugging plate (303), the second air outlet (3031) is communicated with the air inlet, the transmission component (305) comprises a first connecting plate (3051), a second connecting plate (3052) and a third connecting plate (3053), the first connecting plate (3051) is connected on the inner wall of the fixed sleeve (302), the second connecting plate (3052) is connected on the outer wall of the annular clamping plate (304), one end of the third connecting plate (3053) is rotatably connected with the first connecting plate (3051), the other end of the third connecting plate is rotatably connected with the second connecting plate (3052), the top wall of the plugging plate (303) is further chiseled on the top wall of the plugging plate (303), one end of the annular clamping plate (3032) is connected with the sliding chute (306), and one end of the sliding chute (303) is connected with the elastic chute (306) of the internal sliding chute (303), the annular clamping plates (304) are provided with 3-4 groups, the annular clamping plates (304) are mutually matched, and the inner walls of the annular clamping plates (304) are connected with sealing rubber pads (307);
gas leakage detection subassembly (5) are including fixed plate (501) and staving (502), fixed plate (501) are connected on bottom plate (1) roof, staving (502) are connected on fixed plate (501) roof, first coupling hose (201) are connected on staving (502) bottom outer wall, and the inside liquid that is equipped with of staving (502).
2. The bearing tightness detection device according to claim 1, characterized in that the first fixed blocking component (2) and the second fixed blocking component (3) are two groups symmetrically arranged with respect to each other.
3. The bearing tightness detection device according to claim 2, wherein two sets of positioning blocks (101) are provided, and the two sets of positioning blocks (101) are both in a V-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414719.1A CN112629855B (en) | 2020-12-02 | 2020-12-02 | Bearing sealing performance detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414719.1A CN112629855B (en) | 2020-12-02 | 2020-12-02 | Bearing sealing performance detection device |
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| CN112629855A CN112629855A (en) | 2021-04-09 |
| CN112629855B true CN112629855B (en) | 2022-12-27 |
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| CN115597866B (en) * | 2022-12-16 | 2023-03-21 | 河北精拓轴承科技有限公司 | Automobile wheel hub bearing detection equipment based on pressure test |
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| CN103454045A (en) * | 2013-08-21 | 2013-12-18 | 贵州虹智精密轴承有限责任公司 | Leakproofness detection device of clutch bearing of silicone oil fan and method thereof |
| CN105277325A (en) * | 2015-10-15 | 2016-01-27 | 宁波新合博园林机械有限公司 | Device for testing internal sealing property of piping |
| CN205898382U (en) * | 2016-05-18 | 2017-01-18 | 牛米莉 | Valve seal capability test machine |
| CN206523303U (en) * | 2017-02-08 | 2017-09-26 | 慈溪迅蕾轴承有限公司 | Bearing dynamic airtightness detection means |
| CN207622948U (en) * | 2017-11-30 | 2018-07-17 | 大族激光科技产业集团股份有限公司 | Device for detecting sealability |
| CN211013426U (en) * | 2020-01-14 | 2020-07-14 | 程雪 | Pressure vessel leakage detection device |
| CN211515244U (en) * | 2019-12-27 | 2020-09-18 | 无锡尚赛精密机械有限公司 | Bearing body gas tightness detects frock and device |
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2020
- 2020-12-02 CN CN202011414719.1A patent/CN112629855B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454045A (en) * | 2013-08-21 | 2013-12-18 | 贵州虹智精密轴承有限责任公司 | Leakproofness detection device of clutch bearing of silicone oil fan and method thereof |
| CN105277325A (en) * | 2015-10-15 | 2016-01-27 | 宁波新合博园林机械有限公司 | Device for testing internal sealing property of piping |
| CN205898382U (en) * | 2016-05-18 | 2017-01-18 | 牛米莉 | Valve seal capability test machine |
| CN206523303U (en) * | 2017-02-08 | 2017-09-26 | 慈溪迅蕾轴承有限公司 | Bearing dynamic airtightness detection means |
| CN207622948U (en) * | 2017-11-30 | 2018-07-17 | 大族激光科技产业集团股份有限公司 | Device for detecting sealability |
| CN211515244U (en) * | 2019-12-27 | 2020-09-18 | 无锡尚赛精密机械有限公司 | Bearing body gas tightness detects frock and device |
| CN211013426U (en) * | 2020-01-14 | 2020-07-14 | 程雪 | Pressure vessel leakage detection device |
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| CN112629855A (en) | 2021-04-09 |
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