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An adjustable infinitely variable reciprocating saw

A technology of infinitely variable speed and reciprocating saws, which is applied in the field of reciprocating saws, can solve the problems of saw blades stuck in the object to be cut and the speed drop, etc., and achieve the effect of adapting to large-scale operations

Active Publication Date: 2022-06-28
NANJING COLLEGE OF INFORMATION TECH
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The speed of the traditional reciprocating saw is controlled by the motor during cutting. Due to the decrease of the working current of the motor, the decrease of the rotation speed is accompanied by the decrease of the output torque of the motor, causing the saw blade to be stuck in the object to be cut.

Method used

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  • An adjustable infinitely variable reciprocating saw
  • An adjustable infinitely variable reciprocating saw
  • An adjustable infinitely variable reciprocating saw

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Embodiment Construction

[0016] Attached below Figure 1-6 The technical solution of the present invention is further described.

[0017] like figure 1 An adjustable infinitely variable speed reciprocating saw as shown includes a saw blade 17, a saw blade frame 18, a motor and a bottom plate 14. The reciprocating saw also includes a variable speed adjustment drive device, and the variable speed adjustment drive device includes two vertically fixed on the bottom plate 14. A threaded rod 3, the two threaded rods 3 are respectively matched with the two second drive gears, and the threaded rod 3 is matched with the threaded hole of the adjustable fulcrum 8.

[0018] The speed change adjustment driving device also includes a motor drive shaft connected with the motor, the motor drive shaft is connected with the first drive shaft 4, the first drive shaft 4 is connected with one end of the first drive link 1, and the other end of the first drive link 1 Connected with the first drive slider 2, the first dri...

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Abstract

The invention discloses an adjustable infinitely variable speed reciprocating saw, which includes a saw blade, a saw blade frame, a motor and a bottom plate. The first drive shaft is connected, the first drive shaft is connected with one end of the first drive link, the other end of the first drive link is connected with the first drive slider, and the first drive slider is connected with one end of the second drive link , the other end of the second drive link is connected with the second drive slider, the third drive link passes through the cross sleeve, and the saw blade frame is fixed on the boom through the third guide rail. The invention utilizes the change of the height of the adjustable fulcrum and the change of the moving speed of the driving rod to make the cutting speed adjustable, and the cutting speed can be adjusted according to the needs; The boom connection is stable, so that the saw blade is not easy to be stuck by objects, and it is more suitable for large-scale operations.

Description

technical field [0001] The invention relates to a reciprocating saw, in particular to an adjustable infinitely variable reciprocating saw. Background technique [0002] A reciprocating saw is a power tool for sawing with a reciprocating blade. It is a kind of chainsaw, which is generally composed of a casing, a motor, a transmission mechanism, a knife lifting mechanism, a saw blade, a switch, etc. Electric reciprocating saw is a power tool for sawing with a reciprocating saw blade. Electric reciprocating saws are used for sawing metal sheets, pipes, profiles or cutting bevels on steel pipes, and can also cut cables or other non-metallic materials. [0003] The speed of the traditional reciprocating saw is controlled by the motor during cutting. Due to the decrease of the working current of the motor, the rotation speed decreases, and the output torque of the motor decreases, causing the saw blade to get stuck in the object to be cut. SUMMARY OF THE INVENTION [0004] Pu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D49/00B23D51/02B23D51/08B23D51/16
CPCB23D49/00B23D51/02B23D51/08B23D51/16
Inventor 段付德
Owner NANJING COLLEGE OF INFORMATION TECH
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