Oil seal axial force detection device

Abstract

The utility model discloses an oil seal axial force detection device which comprises an installation seat, a base is fixedly installed on the outer side of the installation seat, a pressure sensor is arranged on the upper side of the base, and an oil seal body is arranged on the inner side of the base. The positioning column is fixedly installed on the middle side of the interior of the base, an installation structure is arranged in the base, and the installation structure comprises a moving block, a connecting elastic piece, a spring and an installation elastic piece; and the movable plate is movably installed on the upper side of the interior of the installation base, a precise force sensor is fixedly arranged at the upper end of the movable plate, a movable structure is fixedly connected to the outer side of the movable plate, the movable structure comprises a fixing frame and a fixing block, and the fixing frame is fixedly installed on the outer side of the movable plate. According to the oil seal axial force detection device, the installation structure is arranged, the oil seal can be limited, so that the accuracy of the detection result is improved, and the moving structure is arranged, so that the detection effect of the oil seal can be improved.

Description

Technical Field

[0001] This utility model relates to the field of oil seal axial force detection technology, specifically an oil seal axial force detection device. Background Technology

[0002] An oil seal is a sealing structure used to seal rotating shafts in mechanical equipment. Its main function is to prevent lubricating oil from leaking through tiny gaps in the machinery, while also preventing external impurities such as water, chemicals, dust, and sand from entering the machine. During the oil seal manufacturing process, an axial force detection device is used to measure the axial force of the oil seal to assess its durability and lifespan.

[0003] Chinese Patent Publication No. CN220583646U discloses an axial force detection device for an oil seal. This device includes a base, a guide post on the base, and an annular groove surrounding the guide post. The annular groove is filled with liquid. A vertically movable support plate is mounted within the annular groove, and the support plate is annular in shape. The inner wall of the support plate seals against the inner wall of the annular groove, and the outer wall of the support plate seals against the outer wall of the annular groove. The support plate has several connecting holes. A return spring is located between the bottom of the annular groove and the lower side of the support plate. A clamping sleeve is fitted onto the guide post, and a pressure sensor is located at the lower end of the clamping sleeve. A connecting rod is located at the upper end of the guide post, and a buffer spring is fitted onto the connecting rod. The two ends of the buffer spring abut against the connecting rod and the clamping sleeve, respectively. The connecting rod has a clamping structure for adjusting the clamping sleeve's pressure on the support plate. Compared to existing technologies, this invention can measure the axial force of an oil seal, is simple to operate, and is convenient to use.

[0004] Based on existing solutions and actual production and processing applications, current oil seal axial force detection devices still have some problems, such as:

[0005] 1. When testing the axial force of the oil seal, the liquid flows out of the cavity between the oil seal and the support plate for inspection and observation. Since the support plate is movably installed in the base, when the oil seal is pressurized, the liquid will overflow through the gap between the support plate and the base, resulting in poor test results.

[0006] 2. When placing the oil seal, it is placed on the support plate for positioning. However, during testing, the oil seal is prone to movement, which will affect the test results. Therefore, this utility model provides an oil seal axial force testing device to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this invention is to provide an axial force detection device for oil seals, in order to solve the problems mentioned in the background art. When detecting the axial force of an oil seal, the liquid flows out of the cavity between the oil seal and the support plate for detection and observation. Since the support plate is movably installed in the base, when the oil seal is pressurized, the liquid will overflow through the gap between the support plate and the base, resulting in poor detection results. When placing the oil seal, it is placed on the support plate for limiting its position, but during the detection, the oil seal is prone to movement, which will affect the detection results.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an oil seal axial force detection device, including a mounting base, a base fixedly mounted on the outer side of the mounting base, a pressure sensor provided on the upper side of the base, and an oil seal body provided on the inner side of the base;

[0009] Also includes:

[0010] A positioning post is fixedly installed inside the middle side of the base, and the base is provided with an installation structure, which includes a moving block, a connecting spring, a spring and an installation spring. A spring is provided on the outside of the base, and a moving block is connected to the outside of the spring. A connecting spring is provided on the inner side of the base, and an installation spring is fixedly connected to the inner side of the middle part of the base.

[0011] A movable plate is movably installed inside the upper side of the mounting base, and a precision force sensor is fixedly installed at the upper end of the movable plate. A movable structure is fixedly connected to the outer side of the movable plate, and the movable structure includes a fixed frame and a fixed block. The fixed frame is fixedly installed on the outer side of the movable plate, and a fixed block is fixedly connected to the lower side of the fixed frame.

[0012] Preferably, a mounting plate is also fixedly mounted on the lower side of the mounting base, and a motor is fixedly mounted on the inner side of the mounting plate, with the output end of the motor connected to the mounting rod.

[0013] Preferably, the movable block and the base are telescopically slidably connected, the movable block and the oil seal body are fitted together, and the oil seal body and the positioning post are engaged.

[0014] Preferably, the vertical cross-sectional shape of the fixing frame is an "L" shape, and the fixing frame is distributed at equal angles with respect to the center point of the moving plate.

[0015] Preferably, a positioning block is also fixedly connected to the inner side of the fixing block, and the lower side of the fixing block is connected to the pressure sensor.

[0016] Preferably, the lower side of the positioning block is inclined, and the positioning block and the groove opened on the outer side of the mounting base are correspondingly arranged.

[0017] Preferably, the motor and the movable plate are connected by a thread, and the inner side of the movable plate is provided with a protrusion structure.

[0018] Preferably, the connecting spring and the oil seal body are in a close fit connection, and the vertical cross-sectional shape of the connecting spring is an arc-shaped structure.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the oil seal axial force detection device is provided with an installation structure, which can limit the oil seal, thereby improving the accuracy of the detection results, and is also provided with a moving structure, which can improve the detection effect of the oil seal;

[0020] 1. By placing the oil seal body inside the base, the oil seal body pushes the connecting spring to compress, thereby pushing the mounting spring to compress, which in turn pushes the moving block to slide outward on the lower side of the base. The moving block drives the spring to extend, thereby engaging the oil seal body on the outside of the positioning post. The spring then drives the moving block to slide inward to lock the oil seal body in place, facilitating the limiting of the oil seal body.

[0021] 2. By starting the motor, the motor drives the mounting rod to rotate in the middle of the mounting base, causing the moving plate, which is threadedly connected to the mounting rod, to slide downward on the outside of the mounting base. This causes the moving plate to drive the fixing frame to slide downward, which in turn drives the fixing block to slide downward. This causes the fixing block to drive the pressure sensor downward until it contacts the upper side of the oil seal body. By slowly applying pressure, the pressure sensor measures the required height. The precision force sensor transmits the force value to an external computing device, which calculates all the process values ​​and outputs the data in the form of a graph. Based on the detection results, the data is analyzed. The greater the axial lip deformation, the greater the force that needs to be applied.

[0022] 3. The fixing block is slid downward by the fixing bracket, which in turn drives the positioning block to slide downward, thereby moving the positioning block into the groove on the outside of the mounting base for engagement and connection, facilitating the positioning of the moving fixing block. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the connection between the movable plate and the precision force sensor of this utility model;

[0024] Figure 2 This is a schematic cross-sectional view of the connection between the mounting base and the mounting plate of this utility model.

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B;

[0027] Figure 5 This is a schematic cross-sectional view of the connection between the mounting base and the base of this utility model.

[0028] Figure 6 This utility model Figure 5 Enlarged structural diagram at point C;

[0029] Figure 7 This is an exploded structural diagram of the connection between the mounting base and the oil seal body of this utility model.

[0030] In the diagram: 1. Mounting bracket; 2. Base; 3. Moving block; 4. Oil seal body; 5. Moving plate; 6. Precision force sensor; 7. Fixing bracket; 8. Fixing block; 9. Positioning block; 10. Mounting plate; 11. Motor; 12. Mounting rod; 13. Pressure sensor; 14. Positioning column; 15. Connecting spring; 16. Spring; 17. Mounting spring. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-7 This utility model provides a technical solution: an oil seal axial force detection device, comprising: a mounting base 1, a base 2, a moving block 3, an oil seal body 4, a moving plate 5, a precision force sensor 6, a fixing frame 7, a fixing block 8, a positioning block 9, a mounting plate 10, a motor 11, a mounting rod 12, a pressure sensor 13, a positioning column 14, a connecting spring 15, a spring 16, and a mounting spring 17. In operation, the specific details are as follows... Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, a base 2 is fixedly installed on the outside of the mounting base 1. A positioning post 14 is fixedly connected to the middle of the inside of the base 2. A connecting spring 15 is fixedly installed on the inner side of the base 2. An installation spring 17 is installed on the outside of the base 2. The oil seal body 4 is manually placed on the upper side of the base 2 and pushed downwards, so that the oil seal body 4 is installed on the inner side of the base 2. Under the pushing action, the oil seal body 4 pushes the installation spring 17 to compress, thereby pushing the connecting spring 15 under the pushing action of the oil seal body 4. The compression, under the pushing action of the oil seal body 4, causes the oil seal body 4 to push the moving block 3 to slide outward on the lower side of the base 2. The movement of the moving block 3 causes the moving block 3 to drive the spring 16 to extend. Under the elastic action of the spring 16, the moving block 3 slides inward to limit the oil seal body 4. Then, under the elastic action of the connecting spring 15 and the mounting spring 17, the connecting spring 15 and the mounting spring 17 limit the oil seal body 4, making it convenient to install the oil seal body 4.

[0033] Specific examples Figure 1 , Figure 2 and Figure 5 As shown, a mounting plate 10 is fixedly mounted on the lower end of the mounting base 1. A motor 11 is disposed inside the mounting plate 10. A mounting rod 12 is connected to the output end of the motor 11. A movable plate 5 is connected to the outer side of the mounting rod 12. When the motor 11 is started, the mounting rod 12 connected to the output end of the motor 11 rotates in the middle of the mounting base 1 under the driving action of the motor 11. As a result, the mounting rod 12 is threadedly connected to the movable plate 5 inside the mounting base 1 under the rotation action of the mounting rod 12. Then, under the thread action between the mounting rod 12 and the movable plate 5, the movable plate 5 slides downward on the outer side of the mounting base 1. As the movable plate 5 slides downward, it moves... The moving plate 5 drives the fixed frame 7 to slide downwards, which in turn causes the fixed block 8 to slide downwards. This movement of the fixed block 8 then causes the pressure sensor 13 to move downwards to contact the upper side of the oil seal body 4. By slowly applying pressure, the pressure sensor 13 measures the pressure to the required height and transmits the detected pressure value to the precision force sensor 6. The precision force sensor 6 then transmits the force value to an external computing device, which calculates all the process values ​​and outputs the data in the form of a graph. Based on the detection results, the data is analyzed. The greater the axial lip deformation, the greater the force that needs to be applied.

[0034] Specific examples Figure 2 and Figure 4The positioning block 9, which is fixedly installed on the inner side of the fixing block 8, and the groove opened on the outer side of the mounting base 1, are driven by the motor 11 to rotate the mounting rod 12. This causes the mounting rod 12 to slide the moving plate 5 downward. Under the sliding action of the moving plate 5, the fixing frame 7 drives the fixing block 8 to slide downward. In turn, under the downward sliding action of the fixing block 8, the fixing block 8 drives the positioning block 9 to slide downward. This allows the positioning block 9 to engage with the oil seal body 4 in the groove opened on the outer side of the mounting base 1. The engagement between the positioning block 9 and the groove on the outer side of the mounting base 1 allows the positioning block 9 to position the fixing block 8, facilitating the positioning and movement of the fixing block 8.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An axial force detection device for an oil seal, comprising a mounting base (1), a base (2) fixedly mounted on its outer side, a pressure sensor (13) provided on the upper side of the base (2), and an oil seal body (4) provided on the inner side of the base (2); Its features are, Also includes: A positioning post (14) is fixedly installed inside the middle side of the base (2), and the base (2) is provided with an installation structure, which includes a moving block (3), a connecting spring (15), a spring (16) and an installation spring (17). The outer side of the base (2) is provided with a spring (16), and the outer side of the spring (16) is connected to the moving block (3). The inner side of the base (2) is provided with a connecting spring (15), and the middle inner side of the base (2) is fixedly connected with an installation spring (17). A movable plate (5) is movably installed on the upper side inside the mounting base (1), and a precision force sensor (6) is fixedly installed on the upper end of the movable plate (5). A movable structure is fixedly connected to the outer side of the movable plate (5), and the movable structure includes a fixed frame (7) and a fixed block (8). The fixed frame (7) is fixedly installed on the outer side of the movable plate (5), and a fixed block (8) is fixedly connected to the lower side of the fixed frame (7).

2. The oil seal axial force detection device according to claim 1, characterized in that: A mounting plate (10) is fixedly installed on the lower side of the mounting base (1), and a motor (11) is fixedly installed on the inner side of the mounting plate (10), and the output end of the motor (11) is connected to the mounting rod (12).

3. The oil seal axial force detection device according to claim 1, characterized in that: The movable block (3) is telescopically slidably connected to the base (2), and the movable block (3) is fitted to the oil seal body (4), and the oil seal body (4) is snap-fitted to the positioning column (14).

4. The oil seal axial force detection device according to claim 1, characterized in that: The vertical cross-section of the fixed frame (7) is an "L" shape, and the fixed frame (7) is distributed at equal angles with respect to the center point of the moving plate (5).

5. The oil seal axial force detection device according to claim 1, characterized in that: The inner side of the fixing block (8) is also fixedly connected to a positioning block (9), and the lower side of the fixing block (8) is connected to the pressure sensor (13).

6. The oil seal axial force detection device according to claim 5, characterized in that: The lower side of the positioning block (9) is inclined, and the groove opened on the outer side of the positioning block (9) corresponds to the groove opened on the outer side of the mounting base (1).

7. The oil seal axial force detection device according to claim 2, characterized in that: The motor (11) and the movable plate (5) are connected by a thread, and the inner side of the movable plate (5) is provided with a protrusion structure.

8. The oil seal axial force detection device according to claim 1, characterized in that: The connecting spring (15) and the oil seal body (4) are connected in a close fit, and the vertical cross-section of the connecting spring (15) is an arc-shaped structure.

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