Wear-resistant structure of screw

By setting reinforcement grooves on the screw teeth and filling the tungsten chromium cobalt alloy material, the serious wear of screws is solved, and wear resistance is improved and cost is reduced, and service life is extended.

CN223302158UActive Publication Date: 2025-09-05ZHEJIANG JINGHONG MASCH CO LTD
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Patent Information

Application Number
CN202422297614.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2025-09-05
Estimated Expiration
2034-09-20

AI Technical Summary

Technical Problem

The existing screw material and coating technology have high costs and complex processes, which leads to severe wear of the screw during long-term operation, affecting service life and transmission efficiency.

Method used

A continuously distributed reinforcement groove is set on the screw teeth, and the tungsten chromium cobalt alloy is filled as a reinforcement material, covering the screw thread, screw tooth thrust surface and top surface of the screw to form a complete screw tooth structure, replacing the screw body with the material.

Benefits of technology

It improves the wear resistance of the screw, extends the service life, reduces costs and is simple and easy to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a screw wear-resisting structure which comprises a screw body, a plurality of continuously-distributed reinforcing grooves are formed in screw teeth of the screw body, the reinforcing grooves are formed in the sides, facing the tip end of the screw body, of the screw teeth, and reinforcing materials are filled in the reinforcing grooves. The reinforcing material is selectively embedded into the screw teeth of the screw to replace the screw body to be in contact with the material, so that the wear resistance of the screw is effectively improved, the service life of the screw is prolonged, the cost is relatively low, and the process is simple and easy to implement.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molding screws, in particular to a screw wear-resistant structure. Background Art

[0002] Screws are common transmission and connection components in mechanical equipment and are widely used in various mechanical systems. However, over long periods of operation, the screw surface is susceptible to wear, which affects its service life and transmission efficiency. While existing screw materials and coating technologies have improved wear resistance to some extent, they often come with high costs and complex processes. Therefore, developing a simple, effective, and cost-effective method for manufacturing wear-resistant screws is of great practical value. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a screw wear-resistant structure to solve the current pain points in this field.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A screw wear-resistant structure includes a screw body, wherein the screw teeth of the screw body are provided with a plurality of continuously distributed reinforcement grooves, wherein the reinforcement grooves are arranged on the side of the screw teeth facing the tip of the screw body, and the reinforcement grooves are filled with reinforcement material so that the filled reinforcement grooves and the screw teeth form a complete screw tooth shape.

[0006] Further description is given, the top reinforcement groove includes an arc groove arranged at the top of the screw tooth and an inverted conical groove extending toward the root.

[0007] It is further explained that the reinforcing material covers most areas of the helical line and the thrust surface and top surface of the screw teeth.

[0008] It is further specified that the reinforcing material is a stellite-cobalt alloy.

[0009] To sum up, the beneficial effects of the present invention compared with the prior art are as follows: the present invention provides a wear-resistant screw structure, which effectively improves the wear resistance of the screw and extends its service life by embedding reinforcing materials on the screw teeth instead of the screw body in contact with the material, and has relatively low cost and simple and easy process. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0011] Figure 1It is a structural diagram of the utility model;

[0012] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model. DETAILED DESCRIPTION

[0013] The utility model is further described in detail below with reference to the accompanying drawings.

[0014] A screw wear-resistant structure includes a screw body, wherein the screw teeth of the screw body are provided with a plurality of continuously distributed reinforcement grooves, wherein the reinforcement grooves are provided on the side of the screw teeth facing the tip of the screw body, and the top reinforcement grooves include an arc groove provided at the top of the screw teeth and an inverted conical groove extending toward the root. Reinforcement material is filled in the reinforcement grooves so that the filled reinforcement grooves and the screw teeth form a complete screw tooth shape. The reinforcement material covers most of the area of ​​the screw thread and the thrust surface and top surface of the screw teeth, can replace the screw material in long-term contact with the material, reduce the loss of the screw, and can be refilled after the reinforcement material is worn.

[0015] In this example, the reinforcement material is stellite alloy.

[0016] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A screw wear-resistant structure, comprising a screw body, characterized in that: The screw teeth of the screw body are provided with a plurality of continuously distributed reinforcement grooves, which are arranged on the side of the screw teeth facing the tip of the screw body. Reinforcement material is filled in the reinforcement grooves so that the filled reinforcement grooves and the screw teeth form a complete screw tooth shape.

2. The wear-resistant screw structure according to claim 1, characterized in that: The top reinforcement groove comprises an arc groove arranged at the top of the screw tooth and an inverted cone groove extending toward the root.

3. The screw wear-resistant structure according to claim 1, characterized in that: The reinforcing material covers the helical line of the screw and most areas of the thread tooth thrust surface and the top surface.

4. The screw wear-resistant structure according to claim 1, characterized in that: The reinforcing material is stellite-cobalt alloy.