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Nut screwing tool

A technology for screwing nuts and tools, which is applied in the field of nut screwing tools. It can solve problems such as unreasonable design of nut screwing tools, high specific gravity of metal materials, and wear and tear of nut screwing tools, and achieves good chemical resistance, wear resistance and self-lubrication. , Good effect of fatigue resistance

Active Publication Date: 2014-09-10
NINGBO YINZHOU YONGJIA ELECTRICAL TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, manual wrenches are commonly used in industry and daily life to tighten or loosen nuts. During operation, the wrench enters the working position from the radial direction and is placed on the nut. Every time the nut moves a circle, the wrench needs to change its position several times. , the design of such nut screwing tools is unreasonable, it is cumbersome to use and needs to be improved, and it cannot be used in some narrow working environments
[0003] Moreover, most of the current nut-tightening tools are made of steel, magnesium, aluminum and other metals and their alloy materials. Metal materials have high specific gravity, are difficult to process, and have high cost. Moreover, their mechanical properties are average and can only meet general use requirements.
After long-term use, the nut screwing tools made of metal materials are severely worn, resulting in inflexible tool operation during use, and are prone to corrosion and rust, and the service life is shortened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] According to Example 1 in Table 1, weigh the thermoplastic phenolic resin, lubricant, toughening agent, stabilizing modifier and polyoxymethylene, mix them well in a high-speed mixer, and dry them in a vacuum oven at 80°C for 2 hours to obtain polyoxymethylene Mixture. Then weigh the carbon fiber and the polyoxymethylene mixture just obtained and carry out melt extrusion granulation through a twin-screw extruder, wherein the screw speed of the twin-screw extruder is 160r / min, and the temperature of each section of the barrel is controlled at 160-180°C , The nozzle outlet temperature is 175°C. Then, the pellets extruded in the twin-screw extrusion were dried in a vacuum oven at 80° C. for 2 hours to obtain carbon fiber reinforced composite material pellets.

[0048] After granulation, the obtained carbon fiber reinforced composite material pellets are injected into static handle pieces and moving handle pieces through an injection molding machine, wherein the injection ...

Embodiment 2

[0050] According to Example 2 in Table 1, take thermoplastic phenolic resin, lubricant, toughening agent, stabilizing modifier and mix fully with polyoxymethylene, stir evenly in a high-speed mixer, and dry in a vacuum oven at 80°C for 2 hours to obtain polyoxymethylene Mixture. Then weigh the carbon fiber and the newly obtained polyoxymethylene mixture and carry out melt extrusion granulation through a twin-screw extruder, wherein the screw speed of the twin-screw extruder is 160r / min, and the temperature of each section of the barrel is 170-190°C. The nozzle outlet temperature is 175°C. Then, the pellets extruded in the twin-screw extrusion were dried in a vacuum oven at 80° C. for 2 hours to obtain carbon fiber reinforced composite material pellets.

[0051] After granulation, the obtained carbon fiber reinforced composite material pellets are injected into static handle pieces and moving handle pieces through an injection molding machine, wherein the injection temperature...

Embodiment 3

[0053] According to Example 3 in Table 1, take thermoplastic phenolic resin, lubricant, toughening agent, stabilizing modifier and mix fully with polyoxymethylene, stir evenly in a high-speed mixer, and dry in a vacuum oven at 90°C for 3 hours to obtain polyoxymethylene Mixture. Then weigh the carbon fiber and the newly obtained polyoxymethylene mixture and carry out melt extrusion granulation through a twin-screw extruder, wherein the screw speed of the twin-screw extruder is 150r / min, and the temperature of each section of the barrel is 150-165°C. The nozzle outlet temperature is 170°C. Then, the pellets extruded in the twin-screw extrusion were dried in a vacuum oven at 90° C. for 3 hours to obtain carbon fiber reinforced composite material pellets.

[0054]After granulation, the obtained carbon fiber reinforced composite material pellets are injected into static handle pieces and moving handle pieces through an injection molding machine, wherein the injection temperature ...

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PUM

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Abstract

The invention relates to a nut screwing tool which comprises a static handle and a dynamic handle which is formed by overlaying two dynamic handle sheets. The static handle is formed by two static handle sheets. The head end of each dynamic handle sheet is provided with a central through hole and a plurality of long arc through holes and short arc through holes. The head end of each static handle sheet is provided with a static central through hole, the head end of the dynamic handle is in movable connection with the head end of the static handle through a movable assembly, the movable assembly comprises a plurality of first movable blocks and second movable blocks, the first movable blocks and the second movable blocks are respectively in a U shape, the first movable blocks and the second movable blocks are respectively in movable connection with the head end of the movable handle through first movable shafts and second movable shafts, the head end of the movable handle is fixed between the head ends of two static handle sheets through a plurality of fixing shafts, each fixing shaft penetrates through two corresponding arc through holes, wherein the static handle sheets and the movable handle sheets are respectively formed by a carbon fiber reinforced composite, so that the manufactured nut screwing tool is light in weight, good in performance, low in cost and convenient to use.

Description

technical field [0001] The invention belongs to the technical field of hardware tools and relates to a nut screwing tool. Background technique [0002] In the prior art, a manual wrench is generally used in industry and daily life to tighten or loosen nuts. During operation, the wrench enters the working position from the radial direction and fits on the nut. Every time the nut moves a circle, the corresponding wrench needs to change its position many times. , the design of such nut screwing tools is unreasonable, and it is cumbersome to use, which needs to be improved, and cannot be used in some narrow working environments. [0003] Moreover, most of the current nut screwing tools are made of steel, magnesium, aluminum and other metals and their alloy materials. The metal materials have high specific gravity, are difficult to process, high cost, and have general mechanical properties, which can only meet general use requirements. After long-term use, the nut screwing tools...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/14
CPCB25B27/14
Inventor 候红光
Owner NINGBO YINZHOU YONGJIA ELECTRICAL TOOLS