Low-resistance impeller nut with wear monitoring function

Abstract

The utility model discloses a low-resistance impeller nut with a wear monitoring function, and relates to the technical field of nuts. The nut comprises a nut body, a locking screw groove is formed in one end of the nut body, an annular storage groove is formed in one end of the nut body, the locking screw groove is formed in the middle of the annular storage groove, an annular abutting sliding table is movably inserted into the annular storage groove, and guide sliding grooves are symmetrically formed in the inner side of the annular storage groove; the inner side of the annular abutting sliding table is symmetrically and fixedly connected with guiding sliding blocks, and the guiding sliding blocks are slidably connected into the guiding sliding grooves. When the nut body is loosened, the annular abutting sliding table is pushed to drive the guide sliding block to move away from the pressure sensor in the length direction of the guide sliding groove by means of the rebound characteristic of the ejection spring, and the pressure sensor is changed by the abutting pressure of the guide sliding block; therefore, the pressure sensor sends an early warning signal to a worker, so that the safety of the device is effectively improved, and the maintenance efficiency of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of nuts, and in particular to a low-resistance impeller nut with wear monitoring function. Background Art

[0002] In fluid handling equipment, the impeller nut is a crucial component that is responsible for fixing the impeller and ensuring that it can work stably and reliably at high speeds. The performance of the impeller nut directly affects the operating efficiency, safety and service life of the fluid handling equipment. Therefore, high requirements are placed on the design, manufacture and installation of the impeller nut.

[0003] The traditional impeller nut design mainly relies on threads and locking washers to fix the impeller. As the main structure connecting the impeller and the nut, the thread bears the important task of transmitting torque and fixing the impeller. The locking washer is used to increase the friction between the nut and the main body of the equipment to prevent the nut from loosening under vibration or impact.

[0004] However, threads and locking washers are prone to wear and deformation under long-term operation and high-load working conditions, which may cause the connection between the nut and the equipment body to loosen. The traditional impeller nut design lacks timely monitoring of nut loosening, reducing the safety of the device. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the traditional impeller nut design lacks timely monitoring of nut loosening, thereby reducing the safety of the device. The present application provides a low-resistance impeller nut with wear monitoring.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] A low-resistance impeller nut with wear monitoring comprises a nut body, a locking screw groove is provided at one end of the nut body, and an annular receiving groove is provided at one end of the nut body, the locking screw groove is arranged in the middle of the annular receiving groove, an annular interference slide is movably inserted inside the annular receiving groove, a guide slide is symmetrically provided on the inner side of the annular receiving groove, a guide slider is symmetrically fixedly connected to the inner side of the annular interference slide, the guide slider is slidably connected to the inside of the guide slide, a pressure sensor adapted to the guide slider is fixedly connected to the inner bottom of the guide slide, an ejection spring is fixedly connected to the inside of the annular receiving groove, and one end of the ejection spring is fixedly connected to the annular interference slide.

[0008] By adopting the above technical solution and arranging the ejection spring and the pressure sensor for use together, when the nut body becomes loose, the rebound characteristic of the ejection spring is utilized to push the annular resistance slide to drive the guide slide block to move away from the pressure sensor along the length direction of the guide slide groove, and the pressure on the pressure sensor caused by the resistance of the guide slide block changes, so that the pressure sensor sends a warning signal to the staff, thereby effectively improving the safety of the device and the maintenance efficiency of the device.

[0009] Furthermore, a ball head structural surface is provided at one end of the nut body away from the locking screw groove.

[0010] By adopting the above technical solution and arranging the coordinated use of the nut body and the ball head structural surface, the resistance of the nut body to the fluid is effectively reduced, thereby reducing the loss of fluid kinetic energy.

[0011] Furthermore, one end of the nut body is symmetrically provided with a symmetrical screwing surface, and the other end of the nut body is provided with a hexagonal screwing surface.

[0012] By adopting the above technical solution, by setting the coordinated use of the symmetrical screwing surface and the hexagonal screwing surface, it is convenient to use a tool such as a caliper to screw the nut body, thereby improving the portability of the device.

[0013] Furthermore, a conical barrel surface is provided on the side wall of the nut body close to one end of the locking screw groove.

[0014] By adopting the above technical solution and providing a conical barrel surface, the resistance of the nut body to the fluid is further reduced, thereby improving the practicability of the device.

[0015] Furthermore, a backing groove is provided at the inner bottom of the locking screw groove.

[0016] By adopting the above technical solution, the influence of the machining tool on the inner thread of the locking screw groove is effectively reduced by setting the back cutter groove, thereby improving the machining efficiency of the nut body.

[0017] Furthermore, the surface of the nut body is coated with a silicone waterproof coating.

[0018] By adopting the above technical solution, the waterproof effect of the surface of the nut body is effectively improved by providing an organic silicon waterproof coating, thereby extending the service life of the device.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] 1. By setting the ejection spring and the pressure sensor for use together, when the nut body becomes loose, the rebound characteristics of the ejection spring are used to push the annular resistance slide to drive the guide slide block to move away from the pressure sensor along the length direction of the guide slide groove, and the pressure on the pressure sensor caused by the resistance of the guide slide block changes, so that the pressure sensor sends a warning signal to the staff, thereby effectively improving the safety of the device and the maintenance efficiency of the device.

[0021] 2. By setting the contour of the nut body away from the locking screw groove as a ball head structural surface, the fluid can flow along the surface of the ball head structural surface, reducing the resistance of the nut body to the fluid, thereby reducing unnecessary fluid kinetic energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body in this application.

[0023] Figure 2 It is a side cross-sectional view of the device body in this application.

[0024] Figure 3 It is an exploded view of the internal structure of the annular storage groove in this application.

[0025] Description of reference numerals:

[0026] 1. Nut body; 2. Locking screw groove; 3. Annular receiving groove; 4. Annular abutment slide; 5. Guide slide groove; 6. Guide slider; 7. Pressure sensor; 8. Ejection spring; 9. Ball head structural surface; 10. Symmetrical screw surface; 11. Hexagonal screw surface; 12. Conical barrel surface; 13. Back-off groove. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] An embodiment of the present application discloses a low-resistance impeller nut with wear monitoring.

[0029] Reference Figure 1-Figure 3A low-resistance impeller nut with wear monitoring comprises a nut body 1, a locking screw groove 2 is provided at one end of the nut body 1, and an annular receiving groove 3 is provided at one end of the nut body 1, the locking screw groove 2 is arranged in the middle of the annular receiving groove 3, an annular interference slide 4 is movably inserted inside the annular receiving groove 3, a guide slide 5 is symmetrically provided on the inner side of the annular receiving groove 3, a guide slider 6 is symmetrically fixedly connected to the inner side of the annular interference slide 4, the guide slider 6 is slidably connected to the inside of the guide slide 5, a pressure sensor 7 adapted to the guide slider 6 is fixedly connected to the inner bottom of the guide slide 5, an ejection spring 8 is fixedly connected to the inside of the annular receiving groove 3, and one end of the ejection spring 8 is fixedly connected to the annular interference slide 4.

[0030] When in use, first, the gasket is pushed and squeezed into the impeller for fixing by tightening the nut body 1, and at the same time, the nut body 1 pushes the annular interference slide 4 to form interference with the gasket, and retracts into the annular receiving groove 3 along the length direction of the locking screw groove 2, and at the same time, the annular interference slide 4 squeezes the ejection spring 8 to produce a contraction deformation, and drives the guide slider 6 to move toward the inside of the guide slide groove 5 along the length direction of the pressure sensor 7, and at the same time drives the guide slider 6 to form interference with the pressure sensor 7, and triggers the pressure sensor 7 to monitor the interference pressure between the annular interference slide 4 and the gasket. Then, when the nut body 1 becomes loose, the nut body 1 drives the annular interference slide 4 to move away from the gasket, and the ejection spring 8 rebounds to eject the annular interference slide 4, so that the annular interference slide 4 drives the guide slider 6 to move away from the pressure sensor 7 along the length direction of the guide slide groove 5, and at the same time, the pressure sensor 7 monitors the changes in the pressure transmitted by the guide slider 6, and promptly sends an early warning signal to the staff, thereby effectively improving the safety of the device and improving the maintenance efficiency of the device.

[0031] Reference Figure 1 and Figure 2 A ball head structural surface 9 is provided at one end of the nut body 1 away from the locking screw groove 2.

[0032] When in use, by setting the contour of the nut body 1 away from the locking screw groove 2 to the ball head structural surface 9, the fluid can flow along the surface of the ball head structural surface 9, reducing the resistance of the nut body 1 to the fluid, thereby reducing unnecessary fluid kinetic energy loss.

[0033] Reference Figure 1 and Figure 3 A symmetrical screwing surface 10 is symmetrically provided at one end of the nut body 1 , and a hexagonal screwing surface 11 is provided at the other end of the nut body 1 .

[0034] When in use, a symmetrical screwing surface 10 and a hexagonal screwing surface 11 are respectively provided at one end of the nut body 1 to provide a clamping surface for tools such as calipers, thereby improving the portability of the screwing nut body 1.

[0035] Reference Figure 1 and Figure 3 A conical barrel surface 12 is provided on the side wall of the nut body 1 close to one end of the locking screw groove 2 .

[0036] When in use, the tapered barrel surface 12 is provided to further reduce the resistance of the nut body 1 to the fluid, thereby improving the smoothness of the fluid flowing along the surface of the nut body 1 .

[0037] Reference Figure 1 and Figure 2 A backing groove 13 is provided at the inner bottom of the locking screw groove 2.

[0038] During use, when the tool processes the tail of the locking screw groove 2, it will gradually withdraw along the trajectory of the tool withdrawal groove 13. Since the depth of the tool withdrawal groove 13 is slightly greater than the thread depth of the locking screw groove 2, the tool can be completely withdrawn without damaging the thread, thereby improving the processing efficiency of the device.

[0039] Reference Figure 1 and Figure 2 The surface of the nut body 1 is coated with a silicone waterproof coating.

[0040] When in use, a silicone waterproof coating is coated on the surface of the nut body 1 so that a waterproof layer is formed on the surface of the nut body 1, which effectively improves the corrosion resistance of the nut body 1 and prolongs the service life of the device.

[0041] The implementation principle of the low-resistance impeller nut with wear monitoring in this embodiment is as follows: first, a locking screw groove 2 is opened at one end of the nut body 1, and a tool-retracting groove 13 is provided, so that when the tool processes to the tail of the locking screw groove 2, it will gradually withdraw along the track of the tool-retracting groove 13. Since the depth of the tool-retracting groove 13 is slightly greater than the thread depth of the locking screw groove 2, the tool can be completely withdrawn without damaging the thread.

[0042] Then, the contour of the end of the nut body 1 away from the locking screw groove 2 is set as a ball head structural surface 9, so that the fluid can flow along the surface of the ball head structural surface 9, reducing the resistance of the nut body 1 to the fluid, thereby reducing unnecessary fluid kinetic energy loss. At the same time, a symmetrical screwing surface 10 and a hexagonal screwing surface 11 are respectively set at one end of the nut body 1 to provide a clamping surface for tools such as calipers, thereby improving the portability of screwing the nut body 1;

[0043] Then, by tightening the nut body 1, the gasket is pushed to squeeze the impeller for fixing, and at the same time, the nut body 1 pushes the annular interference slide 4 to form interference with the gasket, and retracts into the annular receiving groove 3 along the length direction of the locking screw groove 2, and at the same time, the annular interference slide 4 squeezes the ejection spring 8 to produce a contraction deformation, and drives the guide slider 6 to move toward the inside of the guide slide groove 5 along the length direction of the pressure sensor 7, and at the same time drives the guide slider 6 to form interference with the pressure sensor 7, and triggers the pressure sensor 7 to monitor the interference pressure between the annular interference slide 4 and the gasket. Then, when the nut body 1 loosens, the nut body 1 drives the annular interference slide 4 to move away from the gasket, and the ejection spring 8 rebounds to eject the annular interference slide 4, so that the annular interference slide 4 drives the guide slider 6 to move away from the pressure sensor 7 along the length direction of the guide slide groove 5, and at the same time, the pressure sensor 7 monitors the changes in the pressure transmitted by the guide slider 6, and promptly sends an early warning signal to the staff.

Claims

1. A low-resistance impeller nut with wear monitoring, comprising a nut body (1), characterized in that: A locking screw groove (2) is formed at one end of the nut body (1), and an annular receiving groove (3) is formed at one end of the nut body (1), the locking screw groove (2) is arranged in the middle of the annular receiving groove (3), an annular abutting slide (4) is movably inserted inside the annular receiving groove (3), a guide slide groove (5) is symmetrically formed on the inner side of the annular receiving groove (3), a guide slider (6) is symmetrically fixedly connected to the inner side of the annular abutting slide (4), the guide slider (6) is slidably connected to the inside of the guide slide groove (5), a pressure sensor (7) adapted to the guide slider (6) is fixedly connected to the inner bottom of the guide slide groove (5), an ejection spring (8) is fixedly connected to the inside of the annular receiving groove (3), and one end of the ejection spring (8) is fixedly connected to the annular abutting slide (4).

2. A low-resistance impeller nut with wear monitoring according to claim 1, characterized in that: A ball head structural surface (9) is provided at one end of the nut body (1) away from the locking screw groove (2).

3. A low-resistance impeller nut with wear monitoring according to claim 1, characterized in that: One end of the nut body (1) is symmetrically provided with a symmetrical screwing surface (10), and the other end of the nut body (1) is provided with a hexagonal screwing surface (11).

4. A low-resistance impeller nut with wear monitoring according to claim 1, characterized in that: A conical barrel surface (12) is provided on the side wall of the nut body (1) close to one end of the locking screw groove (2).

5. A low-resistance impeller nut with wear monitoring according to claim 1, characterized in that: The inner bottom of the locking screw groove (2) is provided with a knife retreat groove (13).

6. A low-resistance impeller nut with wear monitoring according to claim 1, characterized in that: The surface of the nut body (1) is coated with an organic silicon waterproof coating.

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