CN218546032U

CN218546032U - Rotary oil seal air tightness detection tool

Info

Publication number: CN218546032U
Application number: CN202222071365.6U
Authority: CN
Inventors: 陆静宏; 李一南; 石志刚
Original assignee: Tieling Tianxing Plastic Rubber Products Co ltd
Current assignee: Tieling Tianxing Plastic Rubber Products Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-02-28
Anticipated expiration: 2032-08-05

Abstract

The utility model relates to an oil blanket detects technical field, specifically be a rotatory oil blanket gas tightness detects frock, the on-line screen storage device comprises a base, sealed axle and both ends open-ended sleeve, base top middle part has the detection cell body of indent, the air flue that will detect cell body and external intercommunication is seted up to base one side, sealed axle sets up in detecting the cell body, the outside of sealed axle is located to the muffjoint and can be dismantled with the base and be connected, sleeve outer wall and detection cell body inner wall sealing connection, sealed off-line wall processing has the outer step portion of a plurality of, step portion in the sleeve inside wall processing has a plurality of, be formed with the installation clearance of the different diameters of a plurality of between the step portion in a plurality of outer step portion and the plurality of, the rotatory oil blanket that detects is arranged in the installation clearance, and be pressed from both sides tightly fixedly by corresponding outer step portion and interior step portion. The utility model discloses can detect the fixed of preceding to the rotatory oil blanket of multiple model under the condition of not changing spare part.

Description

Rotary oil seal air tightness detection tool

Technical Field

The utility model relates to an oil blanket detects technical field, specifically is a rotatory oil blanket gas tightness detects frock.

Background

The rotary oil seal, which can also be called as a rotary shaft lip seal ring, is a key part of mechanical equipment, the quality and performance of the oil seal are directly related to the tightness, safety and reliability of the machine, and under normal conditions, before the rotary oil seal leaves a factory, the air tightness detection is carried out through one air tightness detection device.

The prior patent with publication number CN216012619U provides a rotary oil seal air tightness detection tool, which combines a groove body, a fixed seat, a sealing shaft and a rotary oil seal into a closed cavity together, and fills air into the cavity through an air source to detect the air tightness of the rotary oil seal, and has the advantages of simple detection operation of the air tightness of the rotary oil seal, low manufacturing cost of the tool, low detection cost and the like; however, when the tool for detecting the air tightness of the rotary oil seal is actually used, the tool for detecting the air tightness can only seal and fix the rotary oil seal of one type, and when the rotary oil seals of other types are detected, the sealing shaft and the fixed seat need to be replaced, so that the tool is very troublesome to use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a rotatory oil blanket gas tightness detects frock can detect the fixed before the rotatory oil blanket of multiple model under the condition of not changing spare part, has solved the problem that current rotatory oil blanket gas tightness detects frock need change the rotatory oil blanket that spare part could detect different models.

(II) technical scheme

For realize above-mentioned can be under the condition of not changing spare part the rotatory oil blanket of multiple model detect preceding fixed purpose, the utility model provides a following technical scheme: the utility model provides a rotatory oil blanket gas tightness detects frock, includes base, sealed axle and both ends open-ended sleeve, base top middle part has the detection cell body of indent, base one side seted up will detect the air flue of cell body and external intercommunication, sealed axle sets up detect in the cell body, the sleeve cover is located sealed outside of axle and with the connection can be dismantled to the base, the sleeve outer wall with detect cell body inner wall sealing connection, sealed off-axial wall processing has the outer step portion of a plurality of, step portion in the sleeve inside wall processing has a plurality of, is formed with the installation clearance of the different diameters of a plurality of between the step portion in a plurality of outer step portion and the plurality of, and the rotatory oil blanket that waits to detect is arranged in the installation clearance, and by corresponding outer step portion with interior step portion presss from both sides tightly fixedly.

Optionally, the corners of the outer step portion and the inner step portion are provided with chamfers or fillets.

Optionally, the detection groove body is circular, a sealing ring is embedded into the inner wall of the detection groove body, and a sealing inclined plane which abuts against the sealing ring is processed on the outer wall of the bottom end of the sleeve.

Optionally, the base top is seted up and is encircleed detect the basin that the cell body set up, sealed lid bottom edge downwardly extending in the basin, rotatory oil blanket gas tightness detects the frock still fits including the lid detect the sealed lid at cell body top, the sleeve top with sealed inboard top welded fastening of lid, sealed covering seted up with the basin with the exhaust hole of the inside intercommunication of sleeve.

Optionally, a stud is vertically fixed at the top of the base, a fixing hole corresponding to the position of the stud is formed in the sealing cover, and a hand wheel abutting against the top surface of the sealing cover is in threaded connection with the top of the stud.

Optionally, a connecting column is arranged at the bottom of the sealing shaft, an external thread is arranged on the outer wall of the bottom end of the connecting column, and a threaded hole matched with the bottom end of the connecting column is formed in the base located at the bottom of the detection groove body.

Optionally, an air tap is installed at one end, far away from the detection groove body, of the air passage, and the air tap is connected with an external air compressor through a pipeline.

(III) advantageous effects

Compared with the prior art, the utility model provides a rotatory oil blanket gas tightness detects frock possesses following beneficial effect:

1. the utility model discloses a processing a plurality of outer step portion at sealed off-axial wall and processing a plurality of interior step portion at the sleeve inside wall to be formed with the installation clearance of a plurality of different diameters between sealed off-axial and sleeve, during the detection, can be at the installation clearance fixed mounting different models's of a plurality of different diameters rotatory oil blanket to this gas tightness detection demand that satisfies the rotatory oil blanket of different models;

2. the utility model discloses a corner at outer step portion and interior step portion all is equipped with chamfer or fillet for the sleeve can entangle rotatory oil blanket more smoothly, makes the inboard that the sealed axle can insert rotatory oil blanket more smoothly simultaneously, thereby makes things convenient for the detection installation of rotatory oil blanket more;

3. the utility model discloses a set up the sealing washer detecting the cell body to at the sealed inclined plane of outer wall processing of sleeve bottom, the sleeve offsets through sealed inclined plane and sealing washer, and the effectual sleeve outside of having guaranteed and the leakproofness of detecting between the cell body inner wall, and then improve and detect the precision.

Drawings

Fig. 1 is a schematic view of a front view section structure of the present invention;

FIG. 2 is a schematic left-side sectional view of the present invention;

fig. 3 is a schematic structural view of the sealing cover, the sleeve and the sealing shaft of the present invention.

In the figure: 1. a base; 10. detecting a tank body; 11. an air passage; 12. a water tank; 13. a threaded hole; 2. a seal shaft; 20. an outer step portion; 21. connecting columns; 3. a sleeve; 30. an inner step portion; 31. sealing the inclined plane; 4. a mounting gap; 5. a seal ring; 6. a sealing cover; 60. an exhaust hole; 61. a fixing hole; 7. a stud; 8. a hand wheel; 9. an air faucet; 100. and rotating the oil seal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1 to fig. 3, an embodiment of the present invention provides a technical solution: the utility model provides a rotatory oil blanket gas tightness detects frock, including base 1, sealed axle 2 and both ends open-ended sleeve 3, base 1 top middle part has the detection cell body 10 of indent, base 1 one side is seted up will detect cell body 10 and external air flue 11 of intercommunication, sealed axle 2 sets up in detecting cell body 10, sleeve 3 cover is located sealed outside of axle 2 and can be dismantled with base 1 and be connected, sleeve 3 outer wall and detection cell body 10 inner wall sealing connection, sealed axle 2 outer wall processing has a plurality of outer step 20, sleeve 3 inside wall processing has a plurality of inner step 30, be formed with the installation clearance 4 of a plurality of different diameters between a plurality of outer step 20 and a plurality of inner step 30, the rotatory oil blanket 100 of the installation clearance 4 fixed mounting of a plurality of different diameters of to detect, compare the rotatory oil blanket 100 that current detects the frock and is detecting different models of rotatory oil blanket 100, it is convenient to carry out the relevant zero rotation detection of the oil blanket to the rotatory oil blanket of the time measurement 100 of holding more to examine the time measurement part of the gas tightness of the installation clearance 4 fixed mounting of a plurality of different diameters.

On the basis of the above-mentioned embodiment, the corner of outer step portion 20 and interior step portion 30 all is equipped with chamfer or fillet in this embodiment, and the outer step portion 20 that has fillet or chamfer can make the more smooth cover of sleeve 3 in the rotatory oil blanket 100 outside, and interior step portion 30 that has fillet or chamfer can make the more smooth inboard of inserting rotatory oil blanket 100 of sealed axle 2 to make things convenient for the detection installation of rotatory oil blanket 100 more.

On the basis of the above embodiment, the detection tank body 10 is circular in this embodiment, the sealing ring 5 is installed in the embedding of the inner wall of the detection tank body 10, the sealing inclined surface 31 abutting against the sealing ring 5 is processed on the outer wall of the bottom end of the sleeve 3, and after the sleeve 3 is sleeved into the detection tank body 10, the sealing inclined surface 31 outside the bottom of the sleeve abuts against the sealing ring 5, so that the sealing performance between the outer side of the sleeve 3 and the inner wall of the detection tank body 10 is effectively ensured, and the detection precision is further improved.

On the basis of above-mentioned embodiment, basin 12 that the circumference detected cell body 10 setting is seted up at base 1 top in this embodiment, sealed lid 6 bottom edge downwardly extending to in the basin 12, rotatory oil blanket 100 gas tightness detects frock still fits sealed lid 6 that detects cell body 10 top including the lid, the inboard top welded fastening of sleeve 3 top and sealed lid 6, sealed lid 6 is last to be seted up with basin 12 and the inside exhaust hole 60 that communicates of sleeve 3, fill gaseous back in to detecting cell body 10 through air flue 11, if gas leakage appears in rotatory oil blanket 100, the gas that leaks will discharge into in the basin 12 through exhaust hole 60, and produce the bubble, thereby whether have bubble and bubble volume in the basin 12, can judge whether gas leakage and gas leakage degree of rotatory oil blanket 100, make the testing result more directly perceived.

On the basis of the above embodiment, the stud 7 is vertically fixed on the top of the base 1 in the embodiment, the sealing cover 6 is provided with the fixing hole 61 corresponding to the position of the stud 7, the top of the stud 7 is in threaded connection with the hand wheel 8 which is abutted against the top surface of the sealing cover 6, the sealing cover 6 can be sleeved on the stud 7 when the sealing cover 6 is fixed, the sealing cover 6 can be fixed on the top of the detection groove body 10 by screwing the hand wheel 8, and the sealing cover 6 and the sleeve 3 can be detached only by unscrewing the hand wheel 8 from the stud 7 during detachment.

On the basis of the above-mentioned embodiment, sealed axle 2 bottom is equipped with spliced pole 21 in this embodiment, and spliced pole 21 bottom outer wall is equipped with the external screw thread, offers the screw hole 13 with spliced pole 21 bottom looks adaptation on the base 1 that lies in the detection cell body 10 bottom, is convenient for like this sealed axle 2's installation, dismantlement and change, in order to reduce the probability that detects cell body 10 gas leakage, screw hole 13 preferably adopts the blind hole.

On the basis of above-mentioned embodiment, the one end that detects cell body 10 was kept away from to air duct 11 in this embodiment installs air cock 9, and air cock 9 passes through the pipeline to be connected with outside air compressor machine, during the detection, utilizes the air compressor machine to pour into high-pressure gas into in detecting cell body 10, provides the air supply for rotatory oil blanket 100 gas tightness.

The working principle is as follows: firstly, a rotary oil seal 100 to be detected is sleeved on an outer step portion 20 matched with the rotary shaft 2, then, a sealing cover 6 covers the top of a detection groove body 10, a corresponding inner step portion 30 on the inner side of a sleeve 3 is abutted against the outer side of the rotary oil seal 100 to be detected, the oil seal is clamped and fixed between the rotary shaft 2 and the sleeve 3, finally, a hand wheel 8 is screwed on a stud 7, the sealing cover 6 is fixed on the top of the detection groove body 10 by the hand wheel 8, installation before detection of the rotary oil seal 100 to be detected is completed, during detection, high-pressure gas is injected into the detection groove body 10 by an air compressor to enable the detection groove body 10 to form a positive pressure state, the air tightness of the rotary oil seal 100 is detected by air pressure impact, when air leakage of the rotary oil seal 100 occurs, leaked gas enters the top end of the inner portion of the sleeve 3 and is discharged into a water tank 12 through an exhaust hole 60, and is finally discharged in the form of bubbles in the water tank 12, and therefore a detector can judge whether the rotary oil seal 100 leaks gas and the degree of the air leakage according to whether the bubbles and the amount of the bubbles in the water tank 12.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rotatory oil blanket gas tightness detects frock which characterized in that: including base (1), sealed axle (2) and both ends open-ended sleeve (3), base (1) top middle part has the detection cell body (10) of indent, base (1) one side seted up with detect air flue (11) of cell body (10) and external intercommunication, sealed axle (2) set up detect in the cell body (10), sleeve (3) cover is located the outside of sealed axle (2) and with base (1) can dismantle the connection, sleeve (3) outer wall with detect cell body (10) inner wall sealing connection, sealed axle (2) outer wall processing has a plurality of outer step portion (20), sleeve (3) inside wall processing has a plurality of inner step portion (30), is formed with the installation clearance (4) of a plurality of different diameters between a plurality of outer step portion (20) and a plurality of inner step portion (30), and the rotatory oil blanket (100) that awaits measuring is arranged in installation clearance (4), and by corresponding outer step portion (20) and inner step portion (30) clamp is tight fixed.

2. The rotary oil seal airtightness detection tool according to claim 1, characterized in that: the corners of the outer step portion (20) and the inner step portion (30) are provided with chamfers or fillets.

3. The rotary oil seal airtightness detection tool according to claim 1, characterized in that: detect cell body (10) and be circular, detect cell body (10) inner wall embedding and install sealing washer (5), the outer wall processing of sleeve (3) bottom have with sealing inclined plane (31) that sealing washer (5) offset.

4. The rotary oil seal airtightness detection tool according to claim 1, characterized in that: the utility model discloses a seal structure of a rotary oil seal, including base (1), rotatory oil blanket (100) gas tightness detection frock, sealed lid (6) that detect cell body (10) top, sealed lid (6) bottom edge downwardly extending to in basin (12), sleeve (3) top with sealed lid (6) inboard top welded fastening, seted up on sealed lid (6) with basin (12) with exhaust hole (60) of the inside intercommunication of sleeve (3).

5. The rotary oil seal airtightness detection tool according to claim 4, characterized in that: the top of the base (1) is vertically fixed with a stud (7), the sealing cover (6) is provided with a fixing hole (61) corresponding to the position of the stud (7), and the top of the stud (7) is in threaded connection with a hand wheel (8) which is abutted against the top surface of the sealing cover (6).

6. The rotary oil seal airtightness detection tool according to claim 1, characterized in that: sealed axle (2) bottom is equipped with spliced pole (21), spliced pole (21) bottom outer wall is equipped with the external screw thread, is located detect cell body (10) bottom base (1) go up set up with threaded hole (13) of spliced pole (21) bottom looks adaptation.

7. The rotary oil seal airtightness detection tool according to claim 1, characterized in that: an air tap (9) is installed at one end, far away from the detection groove body (10), of the air passage (11), and the air tap (9) is connected with an external air compressor through a pipeline.