CN2625495Y - High-frequency low noise portable plug-in type electric control vibration rod - Google Patents
High-frequency low noise portable plug-in type electric control vibration rod Download PDFInfo
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- CN2625495Y CN2625495Y CN 03210858 CN03210858U CN2625495Y CN 2625495 Y CN2625495 Y CN 2625495Y CN 03210858 CN03210858 CN 03210858 CN 03210858 U CN03210858 U CN 03210858U CN 2625495 Y CN2625495 Y CN 2625495Y
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Abstract
The utility model discloses a high frequency and low noise portable plug-in electronic control vibrating stick, comprising an stick head, a vibrating body, a motor, a stick body, a sensor probe, a stick caudal handle and a hose, wherein, the front end of the stick body and the stick head are arranged together, the back end of the stick body is connected with the hose by the stick caudal handle; the motor is arranged in the stick body, the vibrating body is an unbalanced hanging and revolving body and is arranged directly on the axis of a motor rotor, the cross section of the vibrating body is provided with a semiglobular bottom, and the semiglobular center thereof is provided with a prismatical protuberant strengthening rib; the interface of the hose and the stick caudal handle takes the shape of a clarion, two or three layers of nets which are mixed and weaved with forty chromium spring steel wires and nylon fiber wires are arranged in the clarion; the shape of the stick head takes the shape of a spindle; the stick caudal handle takes the shape of a binding off truncated cone; the utility model also comprises a control circuit, wherein, the motor and the control circuit are connected electronically with an electronic transducer of the outside world by the hose. The utility model has the advantages of environment protection, energy conservation, safety, long service life, wide application range and high efficiency and handiness, etc.
Description
Technical field
The utility model relates to building implement, the automatically controlled vibrating head of the portable plug-in type of specifically a kind of high frequency low noise.
Background technology
Immersible concrete vibrator is the main tool of building operations vibratory concrete, and general structure is: external common electric machine, connect transmission with flexible axle, and rotation drives planetary vibration caput vibration work, has following deficiency:
One, strong noise contaminated environment.The caput vibrating body stamp wall vibrations work noise of planet mode of vibration is very high, more than the about 90dB of noise, is the primary pollution source of construction noise pollution contaminated environment during complete machine work.
Two, power consumption is high.During vibrator works, the external motor power consumption, soft running part power consumption, really the effective energy to vibration work only accounts for 40～50% of input power energy, and it is a lot of to consume raw material when complete machine is produced.
Three, the impact of performance is undesirable.Planetary vibration frequency is low, and " deadlock " phenomenon of shaking is not opened in normal appearance; Soft transmission can't transmit power at a distance, and the working region is little, thinks that interior operation needs many people, multiple devices to work on a large scale.
Four, dangerous.External motor and vibrating head all do not have safety guard, may can't guarantee user's handling safety because of getting an electric shock accidentally in the use; Strong, the easily heating of soft running part vibration, therefore a lot of workmans cause occupational disease.
Five, application life is short.Use and promptly scrap after 280～300 hours, in use every use just needed maintenance in 10 hours, cleaned and replaced damaged components, and consumable accessory is many, and maintenance is frequent; Again because flexible axle rotation transmission is arranged in the flexible pipe, and unprotect measure in the tube wall, flexible pipe is easily broken or booster.
Six, inefficiency.External common electric machine per minute 2600 changes, and by the soft caput that is transferred to, planetary vibrating head shakes, and frequency is low, amplitude is little, and complete machine heaviness (about 40 kilograms) will be by two to three people during operation; Oscillating mass is poor in addition, and shaking concrete has bubble, arrisdefect phenomenon, and time of vibration is long.
Seven, the scope of application is little.Adopt three-phase 380V power electric supply, can not use, because of a machine one rod, so will often move motor when operating in the place of unpowered electricity; Product type is few, only has three kinds of rod footpaths and length can not surpass the vibrator of 8 meters central siphon transmission.
The utility model content
In order to solve above-mentioned deficiency, the purpose of this utility model provides a kind of environmental protection, energy-conservation, safety, long service life, applied range, the efficient light automatically controlled vibrating head of the portable plug-in type of high frequency low noise.
To achieve these goals, the technical solution of the utility model is: comprise caput, vibrating body, motor, barred body, sensor probe, excellent caudal peduncle, sebific duct, wherein: barred body front end and caput are installed together, and the rear end links to each other with sebific duct by excellent caudal peduncle; Described motor places in the barred body, and vibrating body is that unbalanced hangs rotary body, is directly installed on the axle of rotor, and its cross section has domed bottom, and the master that hemispherical central authorities have columnar protrusions reinforcing rib reinforcing rib is considered as triangle, following ship shape structure; The interface of sebific duct and excellent caudal peduncle is a bugle shape, in establish 2 to 3 layers on the net of 40 chromium spring steel wires and nylon fiber silk shuffling; The caput profile is a spindle-type, and is promptly conical; The rod caudal peduncle is the closing in truncated cone-shaped; Also comprise control circuit, motor is electrically connected with extraneous frequency-variable electronic device with control circuit and by sebific duct; If sensor probe in the cavity of described excellent caudal peduncle, is electrically connected with control circuit;
Described control circuit is made up of leakage protection circuit, two-way solid switch, two-way solid switch control circuit, rectification circuit, main control unit, gate circuit, photoelectricity coupling drive circuit, output composite module, under-voltage, overvoltage crowbar, overheating protection circuit, current foldback circuit, no-load protection circuit and Switching Power Supply, and its syndeton is:
Two-way solid switch is made up of the 1st～2 controllable silicon, and the rectification circuit that output is formed power supply signal via the 1st rectifier bridge is to exporting composite module; Switching Power Supply output+5V ,+the 15V burning voltage; Main control unit is core with the central processing unit, connects the photoelectricity coupling drive circuit that is made of the 1st～3 optocoupler amplifier and the 1st～3 driving amplifier after the gate circuit that its output is formed via the time-delay of the 17th resistance, the 4th electric capacity, by the 4th～6 NAND gate respectively is anti-phase;
The output composite module is made up of the 1st～6 power output pipe, and input signal is the output signal of photoelectricity coupling drive circuit, output termination motor;
Leakage protection circuit is made up of the 1st switching tube, the 1st, 3 diodes, the 1st～2 electric capacity, the 15th～16 resistance, wherein: the 1st switching tube base stage is connected between the node of the 16th resistance of the 3rd diode, the 15th resistance and an end ground connection of series connection, the 3rd diode other end links to each other with the 1st～2 capacitances in series node that is positioned at both ends of power, the 1st switching tube emitter stage through the 1st diode over the ground, colelctor electrode is to the input of two-way solid switch control circuit;
Two-way solid switch control circuit is made up of the 1st～2 photoelectricity Coupling Control Unit, its output connects the 1st～2 SCR control end respectively, to central processing unit, the node of the 1st photoelectricity Coupling Control Unit and the 1st resistance is connected with the 1st switching tube colelctor electrode input through the 1st～2 resistance;
Under-voltage, overvoltage crowbar is by transformer, powered separately by the 3rd rectifier, through capacitor filtering, deliver to the positive negative phase end of the 2nd～3 operational amplifier after the 2nd diode voltage stabilizing, the nor gate input is given in output respectively, and nor gate output is delivered to central processing unit with alarm signal after anti-phase;
Overheating protection circuit is thermoswitch pipe the 15th electric resistance structure of connecting, and the junction of thermoswitch Guan Yudi 15 resistance connects the nor gate input, and central processing unit is delivered in nor gate output;
Current foldback circuit is a core with the 1st operational amplifier, at the 1st operational amplifier negative termination the 3rd resistance to power supply, and be connected in series the 4th～5 resistance over the ground, the node of the 4th～5 resistance links to each other with the 1st rectifier bridge negative terminal, and the 1st operational amplifier output terminal is delivered to central processing unit through nor gate with alarm signal;
The no-load protection circuit is made up of the 2nd～3 switching tube, the 4th～5 diode, and the 2nd switching tube base input end meets the node place of the 5th resistance and the 4th resistance through the 4th diode, and the 3rd switching tube current collection very output connects the nor gate input.
The utlity model has following beneficial effect:
1. noise is low.The utility model adopts the vibrating body of non-equilibrium suspension technology and the centrifugal mode of vibration of high-frequency electric machines combination, and its noise extremely low (about 63dB is following) is lower than international noise environmental protection 73dB and requires standard, is adapted at night and densely populated construction site use.
2. energy-conservation.During the utility model vibrator works, the frequency-variable electronic device becomes 200Hz with the power supply of 50Hz frequency; The volume-diminished of motor (only being common electric machine 1/5 volume) is bar-shaped, and insert in the barred body and use raw material seldom, no soft being in transmission connection between vibrating body and motor, the same shaft vibration of rotor and vibrating body, energy all acts in the vibration.
3. performance is good.The utility model adopts non-equilibrium suspension technology Centrifugal vibration, and it is minimum to rub, and vibration frequency height, amplitude are big, vibrating body and the coaxial whirling vibration of rotor do not have " deadlock " phenomenon, and the vibration work system is all in vibrating head shell inside, not limit by distance, the working region is big.
4. has multinomial safety precautions.The utility model is provided with six safeguard protection electric control gears altogether, can guarantee user's handling safety and inherently safe, and the sebific duct internal cause does not have mechanical transmission, only transmits signal, and is harmless to the people.
5. long service life.Adopt the utility model can guarantee normally to use within 2 years, use continuously also to need not in thousands of hours to shut down through destructive testing and repair, the caput of laser quenching is wear-resisting, hardness is high, toughness is strong, than normal quenching better effects if; Increased by 40 chromium steel silks and nylon fiber mixing netting in the hose wall, making its stretching resistance is 400 times of caput weight, is difficult for being broken, and also can prolong service life under the normal mode of occupation.
6. high efficiency.The utility model adopts three-phase high frequency built-in type rod type motor, the per minute rotating speed changes up to 12000, caput vibration is synchronous with it, and frequency height, amplitude are big, and complete machine is small and exquisite, light, 10 kilograms of shortages in weight, only be 1/4 of planetary type vibrator weight, one man operation gets final product, and oscillating mass is good, do not have bubble, arrisdefect phenomenon during shaking concrete, time of vibration is short.
7. use flexibly applied range.The utility model is owing to adopting the civilian power supply of single-phase 220V, as long as there is the place of domestic lighting electricity just can use; Frequency-variable electronic is thought highly of quantity not sufficient 600 gram, can be with a plurality of vibrating heads of frequency converter band during use, and the length of vibrating head is not limit, rod directly and the multiple vibrator of model.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is a vibrating body front view among Fig. 1.
Fig. 3 is a vibrating body cross sectional view among Fig. 1.
Fig. 4 is the utility model control circuit schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
As shown in Figure 1, 2, 3, form by caput 1, vibrating body 4, motor, barred body 9, sensor probe 11, excellent caudal peduncle 12, sebific duct 13 and control circuit, wherein: motor places in the barred body 9, described vibrating body 4 hangs rotary body for unbalanced, be directly installed on the axle of rotor 8, its cross section has domed bottom, and hemispherical central authorities have the columnar protrusions reinforcing rib; The master of described reinforcing rib is considered as triangle, following ship shape structure; Barred body 9 front ends and caput 1 are installed together, and the rear end links to each other with sebific duct 13 by excellent caudal peduncle 12; Motor also is electrically connected with extraneous frequency-variable electronic device by sebific duct 13 with control circuit;
Vibrating body 4 two ends are supported and suspended on the axle of rotor 8 with bearing 3, and in barred body 9, the bearing 3 of one end is connected with caput 1 contact by ripple spring washer 2, and the bearing 3 of the other end is coaxial with the rotor 8 of motor; Be provided with bearing 3 by the support of bearing 10 between rotor 8 other ends of motor and the excellent caudal peduncle 12, be used for support rotor 8;
In order to help working in the concrete, caput 1 profile described in the utility model is spindle-type, i.e. truncated cone-shaped; Rod caudal peduncle 12 is the closing in truncated cone-shaped; Motor is 220V, 200Hz three phase squirrel cage induction of high frequency motor, and motor stator 7, rotor 8 are elongated shape, 200V, 200Hz three-phase high frequency mouse cage type structure;
If sensor probe 11 is built-in in the cavity of excellent caudal peduncle 12, be electrically connected with control circuit.
As shown in Figure 4; described control circuit is made up of leakage protection circuit, two-way solid switch, two-way solid switch control circuit, rectification circuit, main control unit, gate circuit, photoelectricity coupling drive circuit, output composite module, under-voltage, overvoltage crowbar, overheating protection circuit, current foldback circuit, no-load protection circuit and Switching Power Supply, below in conjunction with course of work detailed description syndeton:
Power supply is connected in start, the signal of telecommunication is delivered to the rectification circuit of forming by the 1st rectifier bridge BG1 through the 1st～2 capacitor C 1～C2 of series connection, the two-way solid switch formed by the 1st～2 controllable silicon SCR 1～SCR2, it is output as main power source, give output composite module power supply (DC voltage 300V), wherein: the output composite module is the 1st～6 power output pipe IGBT1～IGBT6, is divided into three groups, every group power output pipe series connection, its node is an output, is electrically connected with motor M, is used for drive motors M; In parallel between group; Switching Power Supply is as the accessory power supply of two-way solid switch, with input 220V voltage, and after the 2nd rectifier bridge BG2 rectification, capacitor filtering, transistor vibration, output+5V ,+the 15V burning voltage;
Main control unit is core with the central processor CPU, output UVW three-phase 200Hz pulse wave signal (adopting the phase difference mode), export respectively via the 17th resistance R 17 through it respectively, the 4th capacitor C 4 delay time high level, the gate circuit of being made up of the 4th～6 NAND gate IC4～IC6 connects the photoelectricity coupling drive circuit that is made of the 1st～3 optocoupler amplifier PC1～PC3 and the 1st～3 driving amplifier Dr1～Dr3 after anti-phase again, with the 1st～3 optocoupler amplifier PC1～PC3 coupling, drive through the 1st～3 driving amplifier Dr1～Dr3, amplify, then output signal is delivered to the power output pipe IGBT grid in the output composite module respectively; Wherein: the 17th resistance R 17 links to each other with the 4th～6 NAND gate IC4～IC6 with the node place of the 4th capacitor C 4;
Leakage protection circuit is made up of the 1st switch transistor T the 1, the 1st, 3 diode D1, D3, the 1st～2 capacitor C 1～C2, the 15th～16 resistance R 15～R16, wherein: the 1st switch transistor T 1 base stage is connected between the node of the 16th resistance R 16 of the 3rd diode D3, the 15th resistance R 15 and an end ground connection of series connection, the 3rd diode D3 other end links to each other with the 1st～2 capacitor C 1～C2 series connection node that is positioned at both ends of power, the 1st switch transistor T 1 emitter stage through the 1st diode D1 over the ground, colelctor electrode is to the input of two-way solid switch control circuit; When two-way solid switch leaks electricity, send low level, the 1st～2 controllable silicon SCR 1～SCR2 is quit work;
Two-way solid switch control circuit is made up of the 1st～2 photoelectricity Coupling Control Unit PCSCR1～PCSCR2, its output connects the 1st～2 controllable silicon SCR 1～SCR2 control end respectively, input receives the startup starting-up signal that provides from central processor CPU P3.3, P3.4 pin through the 1st～2 resistance R 1～R2 respectively, and the node of the 1st photoelectricity Coupling Control Unit PCSCR1 and the 1st resistance R 1 is connected with the 1st switch transistor T 1 colelctor electrode;
Under-voltage, overvoltage crowbar is by transformer, powered separately by the 3rd rectifier BG3, through capacitor filtering, deliver to the positive and negative end mutually of the 2nd～3 operational amplifier IC2～IC3 after the 2nd diode D2 voltage stabilizing, give nor gate NOR input respectively, nor gate NOR output is delivered to central processor CPU P1.3 pin with alarm signal after anti-phase; The 2nd diode D2 is a Zener diode, and reference voltage is provided; Power supply is inserted in the 6th～8 resistance R 6～R8 polyphone back, the 6th resistance R 6 and the 7th resistance R 7 nodes are delivered to the 2nd operational amplifier IC2 negative phase end, be under-voltage analog value, the node of the 7th～8 resistance R 7～R8 is delivered to the 3rd operational amplifier IC3 positive terminal, is the analog value of superpressure; When the supply voltage superelevation or cross when low, promptly send high level signal through the anti-phase central processor CPU of giving of nor gate NOR by the 3rd operational amplifier IC3 and the 2nd operational amplifier IC2.
Overheating protection circuit is thermoswitch pipe HK the 15th resistance R 15 structures of connecting, thermoswitch pipe HK is arranged in excellent caudal peduncle 12 cavitys as sensor probe 11, connect nor gate NOR input with the junction of the 15th resistance R 15, nor gate NOR output is delivered to central processor CPU P1.3 pin with alarm signal after anti-phase; Disconnect when thermoswitch pipe HK is overheated, send high level to give nor gate NOR;
Current foldback circuit is a core with the 1st operational amplifier IC1, to power supply, is connected in series the 4th～5 resistance R 4～R5 over the ground in the 1st operational amplifier IC1 negative termination the 3rd resistance R 3, and the node of the 4th～5 resistance R 4～R5 links to each other with the 1st rectifier bridge BG1 negative terminal; The 5th resistance R 5 both end voltage too high (negative value) during overcurrent, the 1st operational amplifier IC1 negative phase end is a low level, and it is output as high level, and NOR delivers to central processor CPU with alarm signal through nor gate;
The no-load protection circuit is made up of the 2nd～3 switch transistor T 2～T3, the 4th～5 diode D4～D5, the 2nd switch transistor T 2 is the NPN cast, its base input end meets the node place of the 5th resistance R 5 and the 4th resistance R 4 through the 4th diode D4, the 3rd switch transistor T 3 is the PNP cast, and its current collection very output connects nor gate NOR input; When unloaded alarm signal is delivered to central processor CPU; Cross-over connection the 5th diode D5 between the 2nd switch transistor T 2 base stages and the emitter stage.
Present embodiment the 1st～6 power output pipe IGBT1～IGBT6 adopts the isolated gate bipolar transistor; Nor gate NOR adopts 7423 chips; The 4th～6 NAND gate IC4～IC6 adopts 7400 chips, the 1st～3 optocoupler amplifier PC1～PC3 adopts the TLP536 chip, the 1st～3 operational amplifier IC1～IC3 adopts the LM339 chip, central processor CPU adopts 8,9C5 1 chip, the 1st～2 photoelectricity Coupling Control Unit PCSCR1～PCSCR2 adopts the TAP160J chip, and the 1st～2 controllable silicon SCR 1～SCR2 adopts the BTA26 chip.
The utility model characteristics are:
1. the utility model sebific duct 13 has through-drive for interior nothing, only has power line not need horizontal anti-impact The hit intensity requirement, in order to improve sebific duct 13 pulling force, sebific duct 13 walls are interior with 40 chromium steel vibrating head power lines Protection tube, two to three layers on spring wire (adding intensity) and filament (adding affinity) shuffling net.
2. there is tapering barred body 9 rear and front ends, favourable caput turnover concrete.
3.220V 200Hz three phase squirrel cage induction of high frequency motor is intended to and the same power of power frequency (50Hz) Dwindle 1/4 volume in the situation of motor, be conducive to motor is placed in the rod, claim built-in motor.
4. non-equilibrium suspended vibration body 4 is coaxial direct-connected with rotor 8, vibration frequency and motor revolution Synchronously.
5. many kinds of soft start defencive functions: over voltage defencive function, overcurrent protection function, electric leakage are protected Protective function, overheat protective function, no-load protection function; Six defencive functions are by motor and electronics unit Device is passed to computer control with signal.
6. the utility model vibrating head barred body 9 is processed by laser-quenching technique, and the hardness height is wear-resisting.
Claims (7)
1. automatically controlled vibrating head of the portable plug-in type of high frequency low noise, comprise caput (1), vibrating body (4), motor, barred body (9), sensor probe (11), excellent caudal peduncle (12), sebific duct (13), wherein: barred body (9) front end and caput (1) are installed together, and the rear end links to each other with sebific duct (13) by excellent caudal peduncle (12); It is characterized in that: described motor places in the barred body (9), and vibrating body (4) is directly installed on the axle of rotor (8) for unbalanced hangs rotary body, and its cross section has domed bottom, and hemispherical central authorities have the columnar protrusions reinforcing rib; The interface of sebific duct (13) and excellent caudal peduncle (12) is a bugle shape, in establish 2 to 3 layers on the net of 40 chromium spring steel wires and nylon fiber silk shuffling; Caput (1) profile is a spindle-type, and is promptly conical; Rod caudal peduncle (12) is the closing in truncated cone-shaped; Also comprise control circuit, motor also is electrically connected with extraneous frequency-variable electronic device by sebific duct (13) with control circuit.
2. according to the automatically controlled vibrating head of the claim 1 portable plug-in type of described high frequency low noise, it is characterized in that: described vibrating body (4) two ends are supported and suspended on the axle of rotor (8) with bearing (3), in barred body (9), the bearing of one end (3) is connected with caput (1) contact by ripple spring washer (2), and the bearing of the other end (3) is coaxial with the rotor (8) of motor; Be provided with bearing (3) by the support of bearing (10) between the rotor of motor (8) other end and the excellent caudal peduncle (12).
3. according to the automatically controlled vibrating head of the claim 1 portable plug-in type of described high frequency low noise, it is characterized in that: the master of described reinforcing rib is considered as triangle, following ship shape structure.
4. according to the automatically controlled vibrating head of the claim 1 portable plug-in type of described high frequency low noise, it is characterized in that: establish sensor probe (11) in the cavity of described excellent caudal peduncle (12), be electrically connected with control circuit.
5. according to the automatically controlled vibrating head of the claim 1 portable plug-in type of described high frequency low noise, it is characterized in that: described motor is a 200Hz three phase squirrel cage induction of high frequency motor, and motor stator (7), rotor (8) are elongated shape, 200Hz three-phase high frequency mouse cage type structure.
6. according to the automatically controlled vibrating head of the claim 1 portable plug-in type of described high frequency low noise; it is characterized in that: described control circuit is made up of leakage protection circuit, two-way solid switch, two-way solid switch control circuit, rectification circuit, main control unit, gate circuit, photoelectricity coupling drive circuit, output composite module, under-voltage, overvoltage crowbar, overheating protection circuit, current foldback circuit, no-load protection circuit and Switching Power Supply, and its syndeton is:
(rectification circuit that SCR1～SCR2) form, output form power supply signal via the 1st rectifier bridge (BG1) is to exporting composite module by the 1st～2 controllable silicon for two-way solid switch; Switching Power Supply output+5V ,+the 15V burning voltage; Main control unit is a core with central processing unit (CPU), and its output is respectively via the time-delay of the 17th resistance (R17), the 4th electric capacity (C4), (connect after the gate circuit of IC4～IC6) forms is anti-phase by the 1st～3 optocoupler amplifier (PC1～PC3) and the 1st～3 driving amplifier (the photoelectricity coupling drive circuit of formation of Dr1～Dr3) by the 4th～6 NAND gate;
(IGBT1～IGBT6) form, input signal are the output signal of photoelectricity coupling drive circuit to the output composite module, output termination motor (M) by the 1st～6 power output pipe;
Leakage protection circuit is by the 1st switching tube (T1), the 1st, 3 diode (D1, D3), the 1st～2 electric capacity (C1～C2), the 15th～16 resistance (R15～R16) form, wherein: the 1st switching tube (T1) base stage is connected on the 3rd diode (D3) of series connection, between the node of the 16th resistance (R16) of the 15th resistance (R15) and an end ground connection, (C1～C2) series connection node links to each other the 3rd diode (D3) other end with the 1st～2 electric capacity that is positioned at both ends of power, the 1st switching tube (T1) emitter stage through the 1st diode (D1) over the ground, colelctor electrode is to the input of two-way solid switch control circuit;
Two-way solid switch control circuit is by the 1st～2 photoelectricity Coupling Control Unit (PCSCR1～PCSCR2) form, its output connects the 1st～2 controllable silicon (control end of SCR1～SCR2) respectively, (R1～R2) to central processing unit (CPU), the node of the 1st photoelectricity Coupling Control Unit (PCSCR1) and the 1st resistance (R1) is connected with the 1st switching tube (T1) colelctor electrode input through the 1st～2 resistance;
Under-voltage, overvoltage crowbar passes through transformer, is powered separately by the 3rd rectifier (BG3), through capacitor filtering, deliver to the 2nd～3 operational amplifier (the positive negative phase end of IC2～IC3) after the 2nd diode (D2) voltage stabilizing, nor gate (NOR) input is given in output respectively, and nor gate (NOR) output is delivered to central processing unit (CPU) with alarm signal after anti-phase;
Overheating protection circuit is thermoswitch pipe (K) series connection the 15th resistance (R15) structure, and thermoswitch pipe (K) connects nor gate (NOR) input with the junction of the 15th resistance (R15), and central processing unit (CPU) is delivered in nor gate (NOR) output;
Current foldback circuit is a core with the 1st operational amplifier (IC1), at the 1st operational amplifier (IC1) negative termination the 3rd resistance (R3) to power supply, and be connected in series the 4th～5 resistance (R4～R5) over the ground, (node of R4～R5) links to each other with the 1st rectifier bridge (BG1) negative terminal the 4th～5 resistance, and the 1st operational amplifier (IC1) output is delivered to central processing unit (CPU) through nor gate (NOR) with alarm signal;
The no-load protection circuit is by the 2nd～3 switching tube (T2～T3), the 4th～5 diode (D4～D5) form; the 2nd switching tube (T2) base input end meets the node place of the 5th resistance (R5) and the 4th resistance (R4) through the 4th diode (D4), and the 3rd switching tube (T3) current collection very output connects nor gate (NOR) input.
7. according to the automatically controlled vibrating head of the claim 6 portable plug-in type of described high frequency low noise, it is characterized in that: described output composite module is by the 1st～6 power output pipe (IGBT1～IGBT6) form, be divided into three groups, every group of 2 power output pipes series connection, its node is an output, (M) is electrically connected with motor, and be in parallel between group; (the grid input signal of IGBT1～IGBT6) is (output signal of IC4～IC6) of the 4th～6 NAND gate in the gate circuit to the 1st～6 power output pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210858 CN2625495Y (en) | 2003-01-08 | 2003-01-08 | High-frequency low noise portable plug-in type electric control vibration rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210858 CN2625495Y (en) | 2003-01-08 | 2003-01-08 | High-frequency low noise portable plug-in type electric control vibration rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625495Y true CN2625495Y (en) | 2004-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210858 Expired - Fee Related CN2625495Y (en) | 2003-01-08 | 2003-01-08 | High-frequency low noise portable plug-in type electric control vibration rod |
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| Country | Link |
|---|---|
| CN (1) | CN2625495Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1000927S1 (en) | 2021-04-22 | 2023-10-10 | Milwaukee Electric Tool Corporation | Concrete vibrator |
-
2003
- 2003-01-08 CN CN 03210858 patent/CN2625495Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1000927S1 (en) | 2021-04-22 | 2023-10-10 | Milwaukee Electric Tool Corporation | Concrete vibrator |
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