CN204770806U - Magnetic force bores with restart function after overload fast - Google Patents
Magnetic force bores with restart function after overload fast Download PDFInfo
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- CN204770806U CN204770806U CN201520380506.XU CN201520380506U CN204770806U CN 204770806 U CN204770806 U CN 204770806U CN 201520380506 U CN201520380506 U CN 201520380506U CN 204770806 U CN204770806 U CN 204770806U
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Abstract
The utility model provides a magnetic force bores with restart function after overload fast, bore the body including magnetic force and restart the subassembly with the overload, the overload restarts that the subassembly includes sampling resistor, motor rotary speed control CPU, silicon controlled rectifier, hall and magnetic number ring tests the speed, sampling resistor, motor rotary speed control CPU and silicon controlled rectifier put in series magnetic force and bore in the motor return circuit of body, the top of boring the motor rotor of body in magnetic force is installed to the magnetic number ring, it is other that the hall that tests the speed is fixed in the magnetic number ring to link to each other with motor rotary speed control CPU. The utility model discloses can prevent effectively that magnetic force from boring the emergence and transshipping, guarantee the life of magnetic force brill, magnetic force restarting fast after bore transshipping can be realized, work efficiency is improved, operating personnel control magnetic force bores and be convenient for, reduces the operation degree of difficulty.
Description
Technical field
The utility model belongs to rig field, be specifically related to a kind of there is overload after restart the magnetic drill of function fast.
Background technology
Magnetic drill is that current induced magnetic field, is adsorbed on steel construction at its base generation current after a kind of energising, then to be run up drive drill bit by motor, realizes the rig to steel construction boring.
Existing magnetic drill is substantially based on Manual punching on the market, and motor power constant interval can change because operating personnel apply the size of dynamics.If operating personnel exert a force excessive, cause motor power to transship, the temperature rise of motor exceedes permissible value, causes insulation ag(e)ing further, reduction of service life, can burn winding time serious.Especially when holing larger, easier because force is excessive cause motor overload, and after motor overload, need operating personnel to manually boot, complex operation.
Therefore, develop one and there is power defencive function, and can the magnetic drill of autoboot be those skilled in the art institute urgent need to solve the problem after power overload.
Summary of the invention
For solving the problem, the utility model discloses one and there is power defencive function, and can the magnetic drill of autoboot after power overload.
In order to achieve the above object, the utility model provides following technical scheme:
Restart a magnetic drill for function after there is overload fast, comprise magnetic drill body and overload restarts assembly; Overload restarts that assembly comprises sampling resistor, motor rotary speed control CPU, controllable silicon, test the speed Hall and magnetic number ring; In the motor loop of sampling resistor, motor rotary speed control CPU and controllable silicon in serial connection access magnetic drill body; Magnetic number ring is installed on the top of the motor rotor of magnetic drill body; The Hall that tests the speed is fixed on by magnetic number ring, and is connected with motor rotary speed control CPU.
The utility model provide a kind of there is overload after restart the magnetic drill of function fast, restart assembly by magnetic drill body and overload and form.
Overload in the utility model is restarted assembly and is made up of sampling resistor, motor rotary speed control CPU, controllable silicon, test the speed Hall and magnetic number ring.In the motor loop of sampling resistor, motor rotary speed control CPU and controllable silicon in serial connection access magnetic drill body, magnetic number ring is installed on the top of motor rotor.The current value of size different in motor loop is converted to corresponding magnitude of voltage by sampling resistor, input to motor rotary speed control CPU, the voltage analog transmitted by sampling resistor is converted into corresponding digital quantity by motor rotary speed control CPU, control silicon controlled break-make, thus realize the stopping and the operation that control motor in magnetic drill body.Magnetic number ring in the utility model is installed on the top of the motor rotor of magnetic drill body, along with motor rotor rotates together; The Hall that tests the speed is fixed on by magnetic number ring, is connected with motor rotary speed control CPU, and the Hall that tests the speed produces pulse because of the change of the rotation generation magnetic pole of magnetic number ring, and this pulse is sent to motor rotary speed control CPU, thus judges that motor is in static or rotary state.
When the load of magnetic drill increases gradually, the magnitude of voltage on sampling resistor also increases thereupon gradually; When the magnitude of voltage on sampling resistor arrives maximum, motor rotary speed controls CPU controls silicon controlled and turns off, and by motor stopping, after protecting motor, motor rotary speed control CPU can control silicon controlled angle of flow, provides a lower voltage to motor; If operating personnel do not lay down the pressure put on magnetic drill, motor can not rotate continuously under the driving of this low voltage, motor rotary speed control CPU does not detect the pulse signal of the some transmitted by the Hall that tests the speed, then can not continue provides voltage to rotate for it to motor.
Whether circulation like this, all can provide a lower voltage for motor at interval of the regular hour, sound out the pressure put on magnetic drill and remove.If operating personnel have laid down the pressure put on above magnetic drill; rotate under the voltage that then motor can provide at motor rotary speed control CPU; the Hall that tests the speed detects the pulse of q.s and is sent to motor rotary speed control CPU; motor rotary speed control CPU judges that motor normally rotates; open controlled silicon conducting angle; there is provided enough voltage to motor, realize restarting after overload protection.
And the utility model can also as required, adjustment motor rotary speed controls CPU just can realize motor power when reaching rated power or exceed rated power more than 50%, and stopping motor operation, protects motor.
Sampling resistor and controllable silicon are all welded on motor rotary speed control CPU.
Sampling resistor in the utility model and controllable silicon are all selected to be welded on motor rotary speed control CPU, make the overload in the utility model restart modular construction more compact, are convenient to install fixing, improve reliability.
Compared with prior art, beneficial effect is the utility model: (1) effectively prevents magnetic drill from transshipping, and ensures the service life of magnetic drill; (2) restarting fast after magnetic drill overload can be realized, increase work efficiency; (3) convenient operation personnel control magnetic drill, reduces task difficulty.
Accompanying drawing explanation
Fig. 1, schematic diagram of the present utility model.
Reference numerals list: sampling resistor 1, motor rotary speed control CPU2, controllable silicon 3, the Hall 4 that tests the speed, magnetic number ring 5.
Detailed description of the invention
Below with reference to specific embodiment, the technical scheme that the utility model provides is described in detail, following detailed description of the invention should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.
Be illustrated in figure 1 schematic diagram of the present utility model, the utility model be a kind of there is overload after restart the magnetic drill of function fast, comprise magnetic drill body and overload restarts assembly.
Overload restarts that assembly comprises sampling resistor 1, motor rotary speed control CPU2, controllable silicon 3, test the speed Hall 4 and magnetic number ring 5; In the motor loop of sampling resistor 1, motor rotary speed control CPU2 and controllable silicon 3 series connection access magnetic drill body, and sampling resistor 1 and controllable silicon 3 are all welded on motor rotary speed control CPU2; Magnetic number ring 5 is installed on the top of the motor rotor of magnetic drill body; It is other that the Hall 4 that tests the speed is fixed on magnetic number ring 5, and be connected with motor rotary speed control CPU2.
Finally it should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and non-limiting technical scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or equivalent replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. restart a magnetic drill for function after there is overload fast, it is characterized in that: comprise magnetic drill body and overload restarts assembly; Described overload is restarted assembly and is comprised sampling resistor (1), motor rotary speed control CPU(2), controllable silicon (3), the Hall that tests the speed (4) and magnetic number ring (5); Described sampling resistor (1), motor rotary speed control CPU(2) and controllable silicon (3) series connection access magnetic drill body motor loop in; Described magnetic number ring (5) is installed on the top of the motor rotor of magnetic drill body; It is other that the described Hall that tests the speed (4) is fixed on magnetic number ring (5), and with motor rotary speed control CPU(2) be connected.
2. according to claim 1 a kind of there is overload after restart the magnetic drill of function fast, it is characterized in that: described sampling resistor (1) and controllable silicon (3) are all welded in motor rotary speed control CPU(2) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380506.XU CN204770806U (en) | 2015-06-04 | 2015-06-04 | Magnetic force bores with restart function after overload fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520380506.XU CN204770806U (en) | 2015-06-04 | 2015-06-04 | Magnetic force bores with restart function after overload fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204770806U true CN204770806U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520380506.XU Active CN204770806U (en) | 2015-06-04 | 2015-06-04 | Magnetic force bores with restart function after overload fast |
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| CN (1) | CN204770806U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370203A (en) * | 2015-12-11 | 2016-03-02 | 盐城市新永佳石油机械制造有限公司 | Segmented type deflecting screw drill for horizontal drilling |
| CN109426174A (en) * | 2017-08-21 | 2019-03-05 | 张家港欧博金属工具有限公司 | A kind of embedded control system and control method of electric tool |
| WO2023246460A1 (en) * | 2022-06-21 | 2023-12-28 | 南京泉峰科技有限公司 | Impact tool |
-
2015
- 2015-06-04 CN CN201520380506.XU patent/CN204770806U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370203A (en) * | 2015-12-11 | 2016-03-02 | 盐城市新永佳石油机械制造有限公司 | Segmented type deflecting screw drill for horizontal drilling |
| CN105370203B (en) * | 2015-12-11 | 2017-12-29 | 盐城市新永佳石油机械制造有限公司 | Segment type deflecting helicoid hydraulic motor for horizontal drilling |
| CN109426174A (en) * | 2017-08-21 | 2019-03-05 | 张家港欧博金属工具有限公司 | A kind of embedded control system and control method of electric tool |
| WO2023246460A1 (en) * | 2022-06-21 | 2023-12-28 | 南京泉峰科技有限公司 | Impact tool |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |