CN218994671U

CN218994671U - Precision mechanical sealing performance detection equipment

Info

Publication number: CN218994671U
Application number: CN202222707663.XU
Authority: CN
Inventors: 马俨
Original assignee: Hangzhou Yunwang Tianyi Intelligent Technology Co ltd
Current assignee: Hangzhou Yunwang Tianyi Intelligent Technology Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-05-09
Anticipated expiration: 2032-10-14

Abstract

The utility model belongs to the technical field of tightness detection, and particularly relates to precision mechanical tightness detection equipment which comprises an air supply pump, an air pipe, an air nozzle, an air pressure gauge, a gear cover example piece, a bottom plate, a middle plate, a top plate, an upper suspension plate, an upper clamping disc, a lower suspension plate and a lower clamping disc, wherein the air supply pump is arranged on the bottom plate; the air supply pump is arranged on the bottom surface of the upper suspension plate, an air outlet of the air supply pump is communicated with the air nozzle through an air pipe, the barometer is arranged on the air pipe, and an upper rubber sealing gasket is fixedly adhered to the bottom surface of the upper clamping disc; the sealing performance detection equipment disclosed by the utility model can be used for detecting the sealing performance of a plurality of gear cover parts at the same time, and is beneficial to batch detection work; when the upper clamping disc moves downwards, the clamping plate can be used for automatically clamping the gear cover example piece by utilizing the matching of the upper triangular block and the lower triangular block, the clamping is stable, the clamping can be realized without manual operation, and the use is convenient.

Description

Precision mechanical sealing performance detection equipment

Technical Field

The utility model belongs to the technical field of tightness detection, and particularly relates to precision mechanical tightness detection equipment.

Background

The gear cover is a very common precision mechanical part, has different structural forms according to different use situations, and is commonly used for two kinds of gear parts with special-shaped gear covers and tubular structures.

Because the special application of gear cover adjusts, its gas tightness is very important to performance, consequently, after gear cover processing is accomplished, need to carry out sealing performance detection to it.

Currently, the chinese patent application No. 202023903304. X discloses a "gear cover air tightness testing device", comprising a water tank, a guide post fixed in the water tank, a mounting plate sleeved on the guide post and capable of lifting along the length extending direction of the guide post, an elastic piece sleeved on the guide post and positioned below the mounting plate, a limiting mechanism arranged in the water tank and used for limiting the mounting plate, a profiling fixture arranged on the mounting plate and used for bearing a gear cover, a pressing mechanism arranged on the mounting plate and used for pressing the gear cover, and an air inlet nozzle communicated with the gear cover; the gear cover can sink below the liquid level by downwards pressing the mounting plate and limiting by matching with the limiting mechanism, and the mounting plate can be driven to reset upwards by the elastic piece; the profiling tool is matched with the special-shaped edge of the gear cover, so that the test result is accurate, and the test efficiency is high.

However, when the conventional gear cover air tightness testing device is used for testing, only one gear cover piece can be tested in a sealing manner by one test operation, and the gear cover needs to be frequently operated, installed and detached to conduct batch testing operation, so that batch testing is not facilitated.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the precision mechanical sealing performance detection equipment which has the characteristics of convenience in use and high detection efficiency.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the precision mechanical sealing performance detection device comprises an air supply pump, an air pipe, an air nozzle, an air pressure gauge, a gear cover example piece, a bottom plate, a middle plate, a top plate, an upper suspension plate, an upper clamping disc, a lower suspension plate and a lower clamping disc;

the middle plate is connected above the bottom plate by four supporting columns which are distributed diagonally, the top plate is connected above the middle plate by four supporting columns which are distributed diagonally, the lower suspension plate is positioned right below the middle plate and has a degree of freedom of movement along the vertical direction, a plurality of supporting columns which are distributed at equal intervals along the horizontal direction are fixed on the top surface of the middle plate, the lower clamping plate is fixed on the top ends of the supporting columns and used for supporting a gear cover example piece, and a lower rubber sealing gasket is adhered and fixed on the top surface of the lower clamping plate, the upper suspension plate is located under the top plate and has a degree of freedom of movement along the vertical direction, the upper clamping plate is connected to the lower side of the upper suspension plate by using a connecting upright post, the air nozzle is mounted on the upper clamping plate, the air pump is mounted on the bottom surface of the upper suspension plate, the air outlet of the air pump is communicated with the air nozzle by using an air pipe, the air gauge is mounted on the air pipe, and an upper rubber sealing gasket is fixedly bonded on the bottom surface of the upper clamping plate.

As a preferable technical scheme of the utility model, the device further comprises a lower vertical air cylinder, wherein the lower vertical air cylinder is arranged on the top surface of the bottom plate, and a piston rod of the lower vertical air cylinder is fixedly connected with the lower suspension plate.

As a preferable technical scheme of the utility model, the device further comprises an upper vertical cylinder, wherein the upper vertical cylinder is arranged on the top surface of the top plate, and a piston rod of the upper vertical cylinder penetrates through the top plate and is fixedly connected with the upper suspension plate; the top surface of the upper suspension plate is also fixed with a guide upright post which penetrates through the top plate.

As a preferable technical scheme of the utility model, three first L-shaped blocks which are distributed at equal intervals along the circumferential direction are fixed on the outer wall of the upper clamping disc, and an upper triangle block is fixed on the vertical part of the first L-shaped blocks; still include splint and connecting plate the outer wall of lower clamp disc is fixed with three equi-spaced distribution's along circumferencial direction No. two L type pieces, splint elastic mounting is in on the connecting plate, and be fixed with two on the connecting plate and run through the connecting rod of No. two L type piece vertical portion settings the one end that the connecting rod kept away from the connecting plate is fixed with down triangle-shaped piece, and is in the cover is equipped with on the connecting rod be in No. two L type piece vertical portions with reset spring between the triangle-shaped piece down.

As a preferable technical scheme of the utility model, four telescopic columns which are distributed diagonally are fixed between the clamping plate and the connecting plate, and telescopic springs which are positioned between the clamping plate and the connecting plate are sleeved on the telescopic columns.

Compared with the prior art, the utility model has the beneficial effects that: the sealing performance detection equipment disclosed by the utility model can be used for detecting the sealing performance of a plurality of gear cover parts at the same time, and is beneficial to batch detection work; when the upper clamping disc moves downwards, the clamping plate can be used for automatically clamping the gear cover example piece by utilizing the matching of the upper triangular block and the lower triangular block, the clamping is stable, the clamping can be realized without manual operation, and the use is convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the utility model at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at B in FIG. 1;

in the figure: 1. an air supply pump; 2. a gas pipe; 3. an air nozzle; 4. an air pressure gauge; 5. a bottom plate; 6. a middle plate; 7. a top plate; 8. a first supporting upright post; 9. a second supporting upright post; 10. an upper suspension plate; 11. an upper clamping plate; 12. a lower suspension plate; 13. a support column; 14. gear cover examples; 15. a lower vertical cylinder; 16. an upper vertical cylinder; 17. a guide column; 18. a rubber sealing gasket is arranged; 19. a first L-shaped block; 20. an upper triangle block; 21. connecting the upright posts; 22. a lower clamping plate; 23. a lower rubber sealing gasket; 24. a second L-shaped block; 25. a clamping plate; 26. a connecting plate; 27. a connecting rod; 28. a lower triangle block; 29. a return spring; 30. a telescopic column; 31. and a telescopic spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides the following technical solutions: the precision mechanical sealing performance detection device comprises an air supply pump 1, an air pipe 2, an air nozzle 3, an air pressure gauge 4, a gear cover example piece 14, a bottom plate 5, a middle plate 6, a top plate 7, an upper suspension plate 10, an upper clamping disc 11, a lower suspension plate 12 and a lower clamping disc 22;

as shown in fig. 1, 2 and 3, in the present embodiment, a middle plate 6 is connected above a bottom plate 5 by four supporting columns 8 diagonally distributed, a top plate 7 is connected above the middle plate 6 by four supporting columns 9 diagonally distributed, a lower suspension plate 12 is located right below the middle plate 6 and has a degree of freedom of movement in the vertical direction, a plurality of supporting columns 13 equally spaced in the horizontal direction are fixed to the top surface of the middle plate 6, a lower clamping plate 22 is fixed to the top ends of the supporting columns 13 for supporting a gear cover example 14, and a lower rubber sealing gasket 23 is adhesively fixed to the top surface of the lower clamping plate 22, an upper suspension plate 10 is located right below the top plate 7 and has a degree of freedom of movement in the vertical direction, an upper clamping plate 11 is connected below the upper suspension plate 10 by connecting columns 21, air nozzles 3 are mounted on the upper clamping plate 11, the air pump 1 is installed on the bottom surface of the upper suspension plate 10, the air outlet of the air pump 1 is communicated with the air nozzle 3 by using the air pipe 2, the air gauge 4 is installed on the air pipe 2, the upper rubber sealing gasket 18 is fixedly adhered to the bottom surface of the upper clamping disk 11, therefore, in use, the gear cover example 14 to be detected is placed on the lower rubber sealing gasket 23 to support, then the upper suspension plate 10 is started to move downwards, the air nozzle 3 is inserted into the gear cover example 14, the upper clamping disk 11 drives the upper rubber sealing gasket 18 to move downwards, the lower clamping disk 22 is matched to clamp the gear cover example 14, the lower rubber sealing gasket 23 and the upper rubber sealing gasket 18 ensure tightness, then the air pump 1 is started, the air pump 1 inputs air into the gear cover example 14 through the air pipe 2 and the air nozzle 3, at the moment, in principle, the indication value of the air gauge 4 is continuously increased, when the value of the barometer 4 reaches a certain value, the air supply pump 1 is stopped, the indication value state of the barometer 4 is observed, if the indication value of the barometer 4 is unchanged, the sealing performance of the gear cover example piece 14 is good, and otherwise, the sealing performance of the gear cover example piece 14 is poor.

Furthermore, in the figures it can be seen that the apparatus of the present utility model is capable of detecting three gear cover examples 14 simultaneously, it being noted that this is only an exemplary representation of the present embodiment, i.e. that in actual detection work other numbers may be provided.

As shown in fig. 1, as an alternative embodiment, the present embodiment further includes a lower vertical cylinder 15, where the lower vertical cylinder 15 is installed on the top surface of the bottom plate 5, and a piston rod of the lower vertical cylinder 15 is fixedly connected to the lower suspension plate 12, and the lower vertical cylinder 15 provides power for moving the lower suspension plate 12 in the vertical direction, so that, during detection, the lower vertical cylinder 15 may be started to drive the lower suspension plate 12 to move upwards by a certain distance.

As an alternative embodiment, as shown in fig. 1, the device further comprises an upper vertical cylinder 16, wherein the upper vertical cylinder 16 is installed on the top surface of the top plate 7, and a piston rod of the upper vertical cylinder 16 penetrates through the top plate 7 and is fixedly connected with the upper suspension plate 10; the top surface of the upper suspension plate 10 is also fixed with a guide upright post 17 penetrating the top plate 7, the upper vertical cylinder 16 provides power for the upper suspension plate 10 to move along the vertical direction, and the guide upright post 17 improves the stability of the upper suspension plate 10.

As an alternative embodiment, as shown in fig. 1, fig. 2 and fig. 3, in this embodiment, three L-shaped blocks 19 are fixed on the outer wall of the upper clamping disk 11, and an upper triangle block 20 is fixed on the vertical portion of the L-shaped blocks 19, which are equally spaced along the circumferential direction; the lower clamping disc 11 moves downwards, the first L-shaped block 19 and the upper triangular block 20 are driven to move downwards, after the inclined surface of the upper triangular block 20 contacts the inclined surface of the lower triangular block 28, the inclined surface acts to generate a component force, so that the lower triangular block 28 moves inwards, the connecting plate 26 and the clamping plate 25 are pushed to move inwards by the connecting rod 27, the reset spring 29 contracts, and the stability of the gear cover example piece 14 is clamped by the three clamping plates 25 which are distributed along the circumferential direction at equal intervals; when the upper clamping disc 11 moves upwards, the reset spring 29 releases the elastic force, the lower triangular block 28 automatically resets, clamping can be realized without manual operation, and the use is convenient.

As shown in fig. 1, fig. 2 and fig. 3, in this embodiment, four telescopic columns 30 distributed diagonally are fixed between the clamping plate 25 and the connecting plate 26, and telescopic springs 31 between the clamping plate 25 and the connecting plate 26 are sleeved on the telescopic columns 30, and the telescopic columns 30 are telescopic structures formed by sleeving two sections of hollow cylindrical members, so that the clamping plate 25 can flexibly clamp the gear cover example 14 under the elastic force fit of the telescopic springs 31, and the safety of the gear cover example 14 is also ensured under the premise of ensuring the stable writing of the clamping gear cover example 14.

Furthermore, since the gear cover example 14 is a circular tubular member, the clamping surface of the clamping plate 25 is actually an arcuate surface that mates with the outer wall of the gear cover example 14, and is shown in the drawings.

The working principle and the using flow of the utility model are as follows: according to the sealing performance detection equipment, when the equipment is used, a gear cover example piece 14 to be detected is placed on a lower rubber sealing gasket 23 to be supported, then an upper suspension plate 10 is started to move downwards, an air nozzle 3 is inserted into the gear cover example piece 14, an upper clamping disc 11 drives an upper rubber sealing gasket 18 to move downwards, the gear cover example piece 14 is clamped by matching with a lower clamping disc 22, the sealing performance is guaranteed by the lower rubber sealing gasket 23 and the upper rubber sealing gasket 18, then an air supply pump 1 is started, the air supply pump 1 inputs air into the gear cover example piece 14 through an air pipe 2 and the air nozzle 3, at the moment, in principle, the indication value of an air pressure meter 4 is continuously improved, when the value of the air pressure meter 4 reaches a certain size, the air supply pump 1 is stopped, the indication value state of the air pressure meter 4 is observed, if the indication value of the air pressure meter 4 is kept unchanged, the sealing performance of the gear cover example piece 14 is good, and otherwise the sealing performance of the gear cover example piece 14 is poor;

in addition, when the upper clamping disk 11 moves downwards, the first L-shaped block 19 and the upper triangular block 20 are driven to move downwards, when the inclined surface of the upper triangular block 20 contacts the inclined surface of the lower triangular block 28, the inclined surface acts to generate a component force, so that the lower triangular block 28 moves inwards, the connecting plate 26 and the clamping plate 25 are pushed to move inwards by the connecting rod 27, the reset spring 29 contracts, and the three clamping plates 25 distributed at equal intervals along the circumferential direction are used for clamping the stability of the gear cover example piece 14; when the upper clamping disc 11 moves upwards, the reset spring 29 releases the elastic force, the lower triangular block 28 automatically resets, clamping can be realized without manual operation, and the use is convenient.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a precision mechanical seal performance check out test set, includes air pump (1), gas-supply pipe (2), air nozzle (3), barometer (4) and gear cover example piece (14), its characterized in that: the precision mechanical sealing performance detection device further comprises a bottom plate (5), a middle plate (6), a top plate (7), an upper suspension plate (10), an upper clamping disc (11), a lower suspension plate (12) and a lower clamping disc (22);

the middle plate (6) is connected above the bottom plate (5) by four supporting columns (8) which are distributed diagonally, the top plate (7) is connected above the middle plate (6) by four supporting columns (9) which are distributed diagonally, the lower suspension plate (12) is positioned right below the middle plate (6) and has a degree of freedom of movement along the vertical direction, a plurality of supporting columns (13) which are distributed at equal intervals along the horizontal direction are fixed on the top surface of the middle plate (6), the lower clamping plate (22) is fixed on the top end of the supporting columns (13) and used for supporting a gear cover example piece (14), a lower rubber sealing gasket (23) is fixedly adhered to the top surface of the lower clamping plate (22), the upper suspension plate (10) is positioned right below the top plate (7) and has a degree of freedom of movement along the vertical direction, the upper clamping plate (11) is connected below the upper suspension plate (10) by using a connecting column (21), the air nozzle (3) is mounted on the air nozzle (3) and is mounted on the air nozzle (1) and the air nozzle (2) is mounted on the air supply pipe (2), an upper rubber sealing gasket (18) is adhered and fixed on the bottom surface of the upper clamping disc (11).

2. The precision mechanical seal performance detection apparatus according to claim 1, wherein: the device further comprises a lower vertical air cylinder (15), wherein the lower vertical air cylinder (15) is arranged on the top surface of the bottom plate (5), and a piston rod of the lower vertical air cylinder (15) is fixedly connected with the lower suspension plate (12).

3. The precision mechanical seal performance detection apparatus according to claim 1, wherein: the device further comprises an upper vertical air cylinder (16), wherein the upper vertical air cylinder (16) is arranged on the top surface of the top plate (7), and a piston rod of the upper vertical air cylinder (16) penetrates through the top plate (7) and is fixedly connected with the upper suspension plate (10); the top surface of the upper suspension plate (10) is also fixed with a guide upright post (17) penetrating through the top plate (7).

4. The precision mechanical seal performance detection apparatus according to claim 1, wherein: three first L-shaped blocks (19) which are distributed at equal intervals along the circumferential direction are fixed on the outer wall of the upper clamping disc (11), and an upper triangle block (20) is fixed on the vertical part of the first L-shaped blocks (19); still include splint (25) and connecting plate (26) the outer wall of lower clamp dish (22) is fixed with three equi-spaced distribution along the circumferencial direction No. two L type pieces (24), splint (25) elastic mounting is in on connecting plate (26), and be fixed with two on connecting plate (26) and run through connecting rod (27) that No. two L type pieces (24) vertical portion set up connecting rod (27) are kept away from one end of connecting plate (26) and are fixed with triangle-shaped piece (28) down, and cover is equipped with on connecting rod (27) are in No. two L type pieces (24) vertical portion with reset spring (29) between triangle-shaped piece (28) down.

5. The precision mechanical seal performance detection apparatus according to claim 4, wherein: four telescopic columns (30) which are distributed diagonally are fixed between the clamping plate (25) and the connecting plate (26), and telescopic springs (31) which are positioned between the clamping plate (25) and the connecting plate (26) are sleeved on the telescopic columns (30).