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Torque output tool

A torque output and tool technology, which is applied in the field of torque output tools, can solve problems such as damage to the transmission device and affect the service life of torque output tools, and achieve the effect of prolonging the service life

Active Publication Date: 2019-11-22
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we know that under normal circumstances, when the machine is started, if the user switches between high and low speeds for the torque output tool, it will cause damage to the transmission and affect the service life of the torque output tool

Method used

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  • Torque output tool
  • Torque output tool
  • Torque output tool

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The following describes the present invention in detail with reference to the drawings and specific embodiments.

[0028] figure 1 The torque output tool 100 shown is capable of outputting torque. Specifically, it may be an electric drill, a screwdriver, and the like. In this embodiment, an electric drill may be used as an example.

[0029] Such as Figure 1 to Figure 4 As shown, the torque output tool 100 includes a housing 11, a motor 12, a switch 13, a transmission device 20, a gear box 14, an output shaft 15, and a speed adjustment device 30. For an electric drill, the torque output tool 100 further includes: a torque adjusting device 16 and a chuck device 17, wherein the torque adjusting device 16 may include a torque cup 161 for user operation, and the chuck device 17 is used to clamp a drill bit, etc. annex.

[0030] The housing 11 may be formed with a receiving portion 111 and a handle portion 112, wherein the receiving portion 111 is used for receiving the motor 12, ...

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PUM

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Abstract

The invention discloses a torque output tool. The torque output tool comprises a motor, an output shaft, a transmission device, an adjustment part and a gear case, wherein the motor is provided with a driving shaft; the output shaft is used for torque output; the transmission device is used for enabling the driving shaft to drive the output shaft; the adjustment part is used for adjusting the transmission device to change the transmission ratio of the driving shaft to the output shaft; the gear case is used for accommodating the transmission device, and a blocking structure for limiting the adjustment part to be in a preset position is formed on the gear case; and when transmitting a torque between the driving shaft and the output shaft, the transmission device enables the adjustment part to be locked in the preset position by the blocking structure, and further, the transmission ratio of the driving shaft to the output shaft is set. The torque output tool ensures that high-low-speed switching cannot be performed by a user when the torque output tool starts to work, so that the transmission device is protected, and the service life of the torque output tool is prolonged.

Description

Technical field [0001] The invention relates to a torque output tool, in particular to an electric drill. Background technique [0002] Torque output tools such as electric drills, screwdrivers, etc. usually include a housing, a motor, a transmission device, a gear box, and an output shaft. The transmission device is arranged in the gear box for torque transmission between the motor and the output shaft. The existing transmission device usually includes a multi-stage planetary gear train, and the torque output tool also includes a speed adjustment device for adjusting the transmission ratio of the multi-stage planetary gear train, so as to realize the high and low speed switching of the torque output tool. However, we know that under normal circumstances, when the machine is started, if the user switches the torque output tool between high and low speeds, it will damage the transmission and affect the service life of the torque output tool. Summary of the invention [0003] A tor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B45/02B25F5/00
CPCB23B45/02B25F5/00
Inventor 茅国兴
Owner NANJING CHERVON IND