Low-resistance impeller nut convenient to screw

Abstract

The utility model discloses a low-resistance impeller nut convenient to screw and relates to the field of nuts, the low-resistance impeller nut comprises a nut body, one end of the nut body is a closed end, an inner groove is formed in the end, away from the closed end, of the nut body, a threaded groove is formed in the inner groove of the nut body, and the outer wall of the nut body is conical. When the nut body is produced, the inner groove is drilled in a nut raw material, then the threaded groove is formed in the inner wall of the inner groove, then the outer wall of the nut body is polished to be conical, and the whole nut body is conical, so that the nut body is streamlined, and the resistance of the nut body to fluid is reduced.

Description

Technical Field

[0001] The present application relates to the field of nuts, and in particular to an impeller nut which is easy to screw with low resistance. Background Art

[0002] A nut is a common fastener, mainly used in conjunction with bolts, screws or screws to fix or connect two or more components. The main function of a nut is to cooperate with the external thread of the bolt, tighten or loosen it by rotation, to connect or fix various components.

[0003] The impeller nut is a specially designed fastener, usually used in equipment that needs to transmit power, such as centrifugal pumps and wind turbines. The impeller nut needs to remain stable during rotation, and the bearing plays a role in supporting and reducing friction. The design of the bearing must take into account factors such as the impeller's rotation speed, load and service life.

[0004] Traditional impeller nuts are generally designed in a common hexagonal or circular shape. When the impeller rotates at high speed, the nut used to fix the impeller may increase the resistance to the impeller's rotation and affect the efficiency of the impeller. Utility Model Content

[0005] The purpose of the present application is to solve the problem that the traditional impeller nut proposed in the above-mentioned background technology is generally designed in a common hexagonal or circular shape, and when the impeller rotates at high speed, the nut used to fix the impeller may increase the resistance of the impeller rotation and affect the efficiency of the impeller. The present application provides an impeller nut with low resistance that is easy to screw.

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

[0007] An impeller nut which is easy to screw with low resistance comprises a nut body, one end of the nut body is a closed end, an end of the nut body away from the closed end is provided with an inner groove, the inner groove of the nut body is provided with a thread groove, and the outer wall of the nut body is conical.

[0008] By adopting the above technical solution, the outer wall of the nut body is ground into a cone, so that the nut body is overall conical, thereby making the nut body streamlined and reducing the resistance of the nut body to the fluid.

[0009] Furthermore, the closed end of the nut body is spherical.

[0010] By adopting the above technical solution, the closed end of the nut body is polished into a spherical shape, thereby further reducing the resistance of the nut body to the fluid.

[0011] Furthermore, a backing groove is formed at one end of the inner groove of the nut body away from the opening.

[0012] By adopting the above technical solution, after the tool withdrawal groove is formed, the tool used to form the thread is suspended and then withdrawn from the inner groove of the nut body, thereby facilitating the withdrawal of the tool when the thread is formed by the tool.

[0013] Furthermore, the nut body is provided with two symmetrical clamping surfaces, and the two clamping surfaces are parallel to each other.

[0014] By adopting the above technical solution, when the nut body is screwed, the two clamping surfaces are directly clamped by a tool to rotate the nut body, thereby facilitating the rotation of the nut body.

[0015] Furthermore, a corrosion-resistant coating is sprayed on the outer wall of the nut body.

[0016] By adopting the above technical solution, a layer of corrosion-resistant coating is sprayed on the nut body, thereby improving the corrosion resistance of the nut body and the stability of the nut body.

[0017] Furthermore, evenly distributed anti-slip diagonal lines are fixed on one end of the nut body away from the closed end.

[0018] By adopting the above technical solution, fixed and evenly distributed anti-skid diagonal lines are provided on the end of the nut body away from the closed end, thereby playing an anti-skid role for the nut body and reducing the possibility of thread slippage of the nut body.

[0019] Furthermore, evenly distributed anti-skid protrusions are fixed on the clamping surface.

[0020] By adopting the above technical solution, a number of evenly distributed anti-skid protrusions are fixed on the two clamping surfaces of the nut body, thereby reducing the possibility of slipping between the nut body and the tool.

[0021] In summary, the present application includes at least one of the following beneficial effects:

[0022] 1. In the present application, when producing the nut body, the outer wall of the nut body is polished into a cone, so that the nut body as a whole is conical, the closed end of the nut body is polished into a spherical shape, and then vertical snap-fit ​​surfaces are polished on both sides of the nut body, thereby achieving the purpose of reducing the resistance of the nut body to the fluid, reducing the possibility of the nut body affecting the efficiency of the impeller, and facilitating the twisting of the nut body.

[0023] 2. In the present application, when threading the inner groove of the nut body, after the tool withdrawal groove is formed, the tool used for threading is suspended and then withdrawn from the inner groove of the nut body, thereby achieving the purpose of facilitating the withdrawal of the tool when using the tool to thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a first three-dimensional structural schematic diagram of the impeller nut in this application;

[0025] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the impeller nut in this application.

[0026] Description of reference numerals:

[0027] 1. Nut body; 2. Thread groove; 3. Back-off groove; 4. Snap-fit ​​surface; 5. Anti-slip diagonal lines; 6. Anti-slip bumps. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-2 This application is described in further detail.

[0029] The embodiment of the present application discloses an impeller nut which is easy to screw with low resistance.

[0030] Reference Figure 1 and Figure 2 , an impeller nut that is easy to screw with low resistance, including a nut body 1, one end of the nut body 1 is a closed end, an inner groove is provided at the end of the nut body 1 away from the closed end, a thread groove 2 is provided in the inner groove of the nut body 1, and the outer wall of the nut body 1 is tapered. When producing the nut body 1, an inner groove is drilled on the nut raw material, and then a thread groove 2 is provided on the inner wall of the inner groove, and then the outer wall of the nut body 1 is ground into a cone, so that the nut body 1 is conical as a whole. By grinding the outer wall of the nut body 1 into a cone, the nut body 1 can be streamlined, the resistance of the nut body 1 to the fluid is reduced, and the possibility of the nut body 1 affecting the efficiency of the impeller is reduced.

[0031] Reference Figure 1 and Figure 2 The closed end of the nut body 1 is spherical. When the nut body 1 is polished, the closed end of the nut body 1 is polished into a spherical shape, so that when the end of the closed end contacts the fluid, the resistance to the fluid is reduced. By polishing the closed end of the nut body 1 into a spherical shape, the resistance of the nut body 1 to the fluid can be further reduced.

[0032] Reference Figure 1 and Figure 2 A tool-retracting groove 3 is provided at one end of the inner groove of the nut body 1 away from the opening. When threading the inner groove of the nut body 1, after the tool-retracting groove 3 is formed, the tool used for threading is suspended and then withdrawn from the inner groove of the nut body 1. By providing the tool-retracting groove 3 at the bottom of the inner groove hole, the tool can be easily withdrawn when threading is formed by the tool.

[0033] Reference Figure 1 and Figure 2 The nut body 1 is provided with two symmetrical clamping surfaces 4, which are parallel to each other. When grinding the nut body 1, vertical clamping surfaces 4 are ground on both sides of the nut body 1. When the nut body 1 is twisted, the two clamping surfaces 4 are directly clamped with a tool to rotate the nut body 1. By grinding two symmetrical clamping surfaces 4 on the outer wall of the nut body 1, the nut body 1 can be easily rotated.

[0034] Reference Figure 1 and Figure 2 A corrosion-resistant coating is sprayed on the outer wall of the nut body 1. After the tapered outer wall and the clamping surface 4 of the nut body 1 are polished, a corrosion-resistant coating is sprayed on the nut body 1. The surface of the nut body 1 is protected by the corrosion-resistant coating. By spraying a corrosion-resistant coating on the nut body 1, the corrosion resistance of the nut body 1 can be improved, and the stability of the nut body 1 can be improved.

[0035] Reference Figure 1 and Figure 2 The end of the nut body 1 away from the closed end is fixed with uniformly distributed anti-skid diagonal lines 5. When the nut body 1 is produced, the end of the nut body 1 away from the closed end is provided with uniformly distributed anti-skid diagonal lines 5. When the nut body 1 collides with a fixed object, the anti-skid diagonal lines 5 on the nut body 1 collides with the object. By fixing the uniformly distributed anti-skid diagonal lines 5 on the nut body 1, the nut body 1 can be prevented from slipping, thereby reducing the possibility of the nut body 1 slipping.

[0036] Reference Figure 1 and Figure 2 The two clamping surfaces 4 of the nut body 1 are fixed with a plurality of uniformly distributed anti-skid protrusions 6. When the nut body 1 is twisted by using a tool to contact the clamping surfaces 4, the anti-skid protrusions 6 contact the tool. By fixing a plurality of uniformly distributed anti-skid protrusions 6 on the clamping surfaces 4, the possibility of slipping between the nut body 1 and the tool can be reduced.

[0037] Working principle: when producing the nut body 1, an inner groove is drilled on the nut raw material, and a tool withdrawal groove 3 is opened at the bottom of the inner groove. When opening a thread on the inner groove of the nut body 1, after the tool withdrawal groove 3 is opened, the tool used for opening the thread is suspended and then withdrawn from the inner groove of the nut body 1. Thereafter, the outer wall of the nut body 1 is polished into a cone so that the nut body 1 is conical as a whole, and the closed end of the nut body 1 is polished into a spherical shape. Then, vertical clamping surfaces 4 are polished on both sides of the nut body 1. When the nut body 1 is twisted, the two clamping surfaces 4 are directly clamped with a tool to rotate the nut body 1 to connect with the corresponding screw thread. The tapered outer wall and spherical end of the nut body 1 reduce the resistance of the fluid.

Claims

1. An impeller nut that is easy to screw with low resistance, comprising a nut body (1), characterized in that: One end of the nut body (1) is a closed end, an end of the nut body (1) away from the closed end is provided with an inner groove, the inner groove of the nut body (1) is provided with a thread groove (2), and the outer wall of the nut body (1) is conical; The closed end of the nut body (1) is spherical; The nut body (1) is provided with two symmetrical clamping surfaces (4), and the two clamping surfaces (4) are parallel to each other.

2. The impeller nut with low resistance and easy to screw according to claim 1, characterized in that: A knife retreat groove (3) is provided at one end of the inner groove of the nut body (1) away from the opening.

3. The impeller nut that is easy to screw with low resistance according to claim 1, characterized in that: A corrosion-resistant coating is sprayed on the outer wall of the nut body (1).

4. The impeller nut that is easy to screw with low resistance according to claim 1, characterized in that: Evenly distributed anti-slip diagonal lines (5) are fixed on one end of the nut body (1) away from the closed end.

5. The impeller nut that is easy to screw with low resistance according to claim 1, characterized in that: The snap-fit ​​surface (4) is fixed with evenly distributed anti-slip convex points (6).

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