Sealing shaft sleeve airtightness detection device

Abstract

The utility model relates to the technical field of detection equipment, and discloses a sealing shaft sleeve airtightness detection device which comprises a supporting base, a controller, a display screen and a pressure sensor, the top of the supporting base is fixedly connected with a side plate, the top of the side plate is fixedly connected with a top plate, the bottom of the top plate is connected with a pressing assembly, and the bottom of the top plate is fixedly connected with a fixing cylinder. And a detection assembly is connected in the fixed cylinder. Compared with the prior art, the sealing shaft sleeve air tightness detection device has the advantages that in the sealing shaft sleeve air tightness detection device, the shaft sleeve body can be conveniently pressed down and taken down from the outer side of the fixed cylinder by using the pressing assembly, the efficiency of detecting the plurality of shaft sleeve bodies is improved, and more labor is saved; and the detection assembly is used for conveniently detecting the air tightness of the shaft sleeve body, so that the influence on subsequent use is avoided.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a device for testing the air tightness of a sealed bushing. Background Technology

[0002] The sealing bushing is fitted onto the spindle to seal it. However, due to deviations in manufacturing precision, gaps may easily exist between the sealing components of the sealing bushing, or due to machining size issues, the sealing components may not fit tightly, resulting in airtightness problems. Therefore, it is necessary to test its airtightness.

[0003] The existing sealing bushing airtightness testing device is inconvenient to remove the bushing, which is time-consuming and labor-intensive, reducing the testing efficiency; and it is also inconvenient to test the airtightness of the bushing, which affects subsequent use, so the device has certain shortcomings. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for testing the airtightness of a sealed bushing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a sealing bushing airtightness testing device, comprising a support base, a controller, a display screen and a pressure sensor, wherein a side plate is fixedly connected to the top of the support base, a top plate is fixedly connected to the top of the side plate, a pressing component is connected to the bottom of the top plate, a fixing cylinder is fixedly connected to the bottom of the top plate, and a testing component is connected inside the fixing cylinder;

[0006] The pressing assembly includes a threaded rod rotatably connected to the bottom of the top plate. A movable plate is threadedly connected to the outer wall of the threaded rod. The movable plate slides on the side of the side plate. A fixing ring is fixedly connected to the side of the movable plate. The fixing ring is located outside the fixing cylinder. The top of the threaded rod passes through the top plate and is connected to a driving assembly.

[0007] As a further description of the above technical solution:

[0008] The detection component includes an air pump connected to the top of the support base. A flexible hose is connected to the outside of the air pump, with one end of the hose threaded to the bottom of the fixed cylinder. Multiple through holes are provided on the outer wall of the fixed cylinder. A bushing body is fitted onto the outer wall of the fixed cylinder. A pressure sensor is connected to the inner wall of the fixed cylinder. The controller and display screen are both fixedly connected to the top of the top plate, and both the pressure sensor and the display screen are electrically connected to the controller.

[0009] As a further description of the above technical solution:

[0010] The drive assembly includes a worm gear, which is fixedly connected to the top of the threaded rod. A fixing block is fixedly connected to the top of the top plate, and a worm is rotatably connected to the side of the fixing block. The worm meshes with the worm gear.

[0011] As a further description of the above technical solution:

[0012] A crank handle is fixedly connected to one end of the worm gear.

[0013] As a further description of the above technical solution:

[0014] The threaded rod is parallel to the fixed cylinder.

[0015] As a further description of the above technical solution:

[0016] The retaining ring is located at the top of the bushing body.

[0017] As a further description of the above technical solution:

[0018] The top plate is parallel to the supporting base.

[0019] This utility model has the following beneficial effects:

[0020] 1. In this utility model, in the airtightness testing device for the sealed bushing, the use of a pressing component makes it easier to press the bushing body down from the outside of the fixed cylinder, thereby improving the efficiency of testing multiple bushing bodies and saving more effort.

[0021] 2. In this utility model, the use of a detection component in the airtightness detection device for the sealed bushing facilitates the detection of the airtightness of the bushing body, thus avoiding any impact on subsequent use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a sealing bushing airtightness testing device proposed in this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of a sealing bushing airtightness testing device proposed in this utility model;

[0024] Figure 3 This is a partial structural cross-sectional view of a sealing bushing airtightness testing device proposed in this utility model;

[0025] Figure 4 This utility model proposes a device for detecting the airtightness of a sealed bushing. Figure 1 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Support base; 2. Side plate; 3. Top plate; 4. Fixed cylinder; 5. Threaded rod; 6. Moving plate; 7. Fixed ring; 8. Worm gear; 9. Fixed block; 10. Worm; 11. Handle; 12. Through hole; 13. Bushing body; 14. Air pump; 15. Hose; 16. Controller; 17. Display screen; 18. Pressure sensor. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Reference Figures 1-4 An embodiment of this utility model is provided: a sealing bushing airtightness testing device, including a support base 1, a controller 16, a display screen 17 and a pressure sensor 18. A side plate 2 is fixedly connected to the top of the support base 1, a top plate 3 is fixedly connected to the top of the side plate 2, a pressing component is connected to the bottom of the top plate 3, a fixing cylinder 4 is fixedly connected to the bottom of the top plate 3, and a testing component is connected inside the fixing cylinder 4.

[0030] The pressing assembly includes a threaded rod 5, which is rotatably connected to the bottom of the top plate 3. A movable plate 6 is threadedly connected to the outer wall of the threaded rod 5. The movable plate 6 slides on the side of the side plate 2. A fixing ring 7 is fixedly connected to the side of the movable plate 6. The fixing ring 7 is located outside the fixing cylinder 4. The top of the threaded rod 5 passes through the top plate 3 and is connected to a driving assembly to facilitate the rotation of the threaded rod 5.

[0031] The detection assembly includes an air pump 14, which is connected to the top of the support base 1. A hose 15 is connected to the outside of the air pump 14, and one end of the hose 15 is threaded to the bottom of the fixed cylinder 4. The outer wall of the fixed cylinder 4 has through holes 12, and multiple sets of through holes 12 are provided. A bushing body 13 is sleeved on the outer wall of the fixed cylinder 4. A pressure sensor 18 is connected to the inner wall of the fixed cylinder 4. A controller 16 and a display screen 17 are both fixedly connected to the top of the top plate 3. The pressure sensor 18 and the display screen 17 are both electrically connected to the controller 16. The drive assembly includes a worm gear 8, which is fixedly connected to the top of the threaded rod 5. A fixing block 9 is fixedly connected to the top of the top plate 3. A worm 10 is rotatably connected to the side of the fixing block 9, and the worm 10 meshes with the worm gear 8. A crank handle 11 is fixedly connected to one end of the worm 10. The threaded rod 5 is parallel to the fixed cylinder 4. A fixing ring 7 is located on the top of the bushing body 13. The top plate 3 is parallel to the support base 1, making the device more stable during operation.

[0032] Working principle: In the airtightness testing device for sealed bushings, after testing, turning the handle 11 drives the worm gear 10 to rotate, the worm gear 10 drives the worm wheel 8 to rotate, the worm wheel 8 drives the threaded rod 5 to rotate, and the threaded rod 5 drives the moving plate 6 to move downward, thereby driving the fixing ring 7 to press down on the bushing body 13, making it easier to remove the bushing body 13 from the outside of the fixing cylinder 4, saving time and effort, and improving the efficiency of testing multiple bushing bodies 13; the bushing body 13 is fitted into the position of the through hole 12 on the outside of the fixing cylinder 4, one end of the hose 15 is threaded to the bottom of the fixing cylinder 4, the air pump 14 is started to inject gas into the fixing cylinder 4, the pressure sensor 18 detects the pressure in the fixing cylinder 4 and sends the signal to the controller 16, the controller 16 displays the value on the display screen 17 for easy observation. If the airtightness of the bushing body 13 is poor, the gas will leak out through the through hole 12 and through the gaps in the bushing body 13, and the pressure value will change, which facilitates the detection of the airtightness of the bushing body 13 and avoids affecting subsequent use.

[0033] All electrical components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and known components is omitted in the specific embodiments disclosed herein. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing bushing airtightness testing device, comprising a support base (1), a controller (16), a display screen (17), and a pressure sensor (18), characterized in that: The support base (1) is fixedly connected to a side plate (2) at the top, the side plate (2) is fixedly connected to a top plate (3) at the top, the top plate (3) is connected to a pressing component at the bottom, the top plate (3) is fixedly connected to a fixing cylinder (4) at the bottom, and a detection component is connected inside the fixing cylinder (4). The pressing assembly includes a threaded rod (5), which is rotatably connected to the bottom of the top plate (3). A movable plate (6) is threadedly connected to the outer wall of the threaded rod (5). The movable plate (6) slides on the side of the side plate (2). A fixing ring (7) is fixedly connected to the side of the movable plate (6). The fixing ring (7) is located outside the fixing cylinder (4). The top of the threaded rod (5) passes through the top plate (3) and is connected to a driving assembly.

2. The airtightness testing device for a sealed bushing according to claim 1, characterized in that: The detection component includes an air pump (14), which is connected to the top of the support base (1). A hose (15) is connected to the outside of the air pump (14). One end of the hose (15) is threaded to the bottom of the fixed cylinder (4). A through hole (12) is opened on the outer wall of the fixed cylinder (4). Multiple sets of through holes (12) are provided. A bushing body (13) is sleeved on the outer wall of the fixed cylinder (4). A pressure sensor (18) is connected to the inner wall of the fixed cylinder (4). The controller (16) and the display screen (17) are both fixedly connected to the top of the top plate (3). The pressure sensor (18) and the display screen (17) are both electrically connected to the controller (16).

3. The airtightness testing device for a sealed bushing according to claim 1, characterized in that: The drive assembly includes a worm gear (8), which is fixedly connected to the top of the threaded rod (5). A fixing block (9) is fixedly connected to the top of the top plate (3). A worm (10) is rotatably connected to the side of the fixing block (9). The worm (10) meshes with the worm gear (8).

4. The airtightness testing device for a sealed bushing according to claim 3, characterized in that: A crank (11) is fixedly connected to one end of the worm gear (10).

5. The airtightness testing device for a sealed bushing according to claim 1, characterized in that: The threaded rod (5) is parallel to the fixed cylinder (4).

6. The airtightness testing device for a sealed bushing according to claim 1, characterized in that: The retaining ring (7) is located at the top of the bushing body (13).

7. The airtightness testing device for a sealed bushing according to claim 1, characterized in that: The top plate (3) is parallel to the support base (1).

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