Electric-drill overload-preventing system
An anti-overload and electric drill technology, applied in portable drilling rigs, drilling/drilling equipment, maintenance and safety accessories, etc., can solve problems such as motor burnout, achieve the effect of preventing burnout and prolonging the life of the machine
Inactive Publication Date: 2014-06-04
QINGDAO TECHCAL UNIV QINDAO COLLEGE
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Problems solved by technology
[0004] In order to overcome the above-mentioned deficiencies, the object of the present invention is to provide an electric drill anti-overload system, which is used to solve the problem that the electric drill in the prior art is easy to burn out the motor due to overload
Method used
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Embodiment Construction
[0010] The present invention will be further described below in conjunction with accompanying drawing:
[0011] As shown in the figure, an electric drill anti-overload system consists of a turntable 1, a spindle 2, a drill bit 3, a spring 4, a contact body 5, a large button 6, a small button 7, a contactor system 8, an electric system 9, a gear system 10, Line 11, fixed track 12, contact shrapnel 13, alarm 14 are formed. Turntable 1 is connected to spindle 2, drill bit 3 is connected to spindle 2, one end of spring 4 is connected to turntable 1, and the other end of spring 4 is connected to contact body 5. There are two contact bodies. When the turntable rotates at high speed, the two contact bodies are in the centrifugal Separate under the action, the contact shrapnel 13 is in contact with the turntable 1, the lower part of the turntable 1 is connected to the power supply +12V through the contact shrapnel 13, the upper part of the turntable 1 is connected to the small button ...
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The invention relates to an electric-drill overload-preventing system. The electric-drill overload-preventing system is composed of a rotary disc, a main shaft, a drill bit, a spring, contact bodies, a big button, a small button, a contactor system, a power-driven system, a gear system, a circuit, a fixed track, an elastic contact piece and an alarm. Due to the adoption of the electric-drill overload-preventing system, an electric drill can be automatically powered off when being overloaded, a motor will not be burnt out, and the service life of the motor is prolonged. The rotary disc is connected with the main shaft. The contact bodies are connected with the spring. The spring is arranged in the fixed track. The fixed track is fixedly connected with the rotary disc. The rotary disc makes contact with the elastic contact piece. When the electric-drill overload-preventing system works normally, the two contact bodies are set apart under the action of centrifugal force, when overloading happens, the rotating speed of the main shaft is reduced quickly, the action of centrifugal force is not obvious, the two contact bodies are combined, the circuit is closed, a current signal is generated, transmitted to the contactor system and processed by the contactor system and is then transmitted to the power-driven system, and finally the motor is powered off. The electric-drill overload-preventing system is easy to operate, convenient to use and easy to popularize.
Description
technical field [0001] The invention relates to an overload prevention system, in particular to an electric drill overload prevention system. Background technique [0002] An electric drill is a drilling tool that uses electricity as power. It is a conventional product in electric tools, and it is also the most demanded electric tool product. The annual production and sales volume accounts for 35% of China's electric tools. The main specifications of the electric drill are 4, 6, 8, 10, 13, 16, 19, 23, 32, 38, 49mm, etc. The working principle of the electric drill is that the motor rotor of the electromagnetic rotary or electromagnetic reciprocating small-capacity motor performs magnetic field cutting and works. The working device is driven by the transmission mechanism, and the gear is driven to increase the power of the drill bit, so that the drill bit scrapes the surface of the object and penetrates the object better. [0003] Electric drills in the prior art are easy t...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23B45/02B23Q11/00
CPCB23Q11/04
Inventor 韩振五张霞
Owner QINGDAO TECHCAL UNIV QINDAO COLLEGE