CN206807316U - Impact-type electric hammer exports energy control apparatus - Google Patents

Abstract

It the utility model is related to a kind of impact-type electric hammer output energy control apparatus; it is to be connected by externally fed power supply through step-down rectifying circuit, 5V DC voltage generation circuits and synchronizing signal generative circuit with single-chip microcomputer governor circuit; single-chip microcomputer governor circuit is connected with voltage display module, and single-chip microcomputer governor circuit connects and composes through thyristor regulating volt circuit, current foldback circuit and energy output control circuit and electric hammer.External power source is realized two functions by the utility model by external power source adjustment unit by step-down rectifier, first, the DC voltage for producing 5V is powered for single-chip microcomputer, second, produce synchronization zero-cross signal, exported compared to existing single energy, the utility model can be realized to being adjusted in the range of voltage 50V~220V, and real-time display is to voltage real-time display unit.The characteristics of energy control apparatus has larger adjustable range, and reliability is high and precision is high, the impact-type electric hammer being particularly suitable for use in the control of energy adjustment in a big way.

Description

Impact-type electric hammer exports energy control apparatus

Technical field：

A kind of energy output-controlling device of forward probe instrument is the utility model is related to, especially a kind of microminiature impact Formula electric hammer exports energy control apparatus.

Background technology：

Advance geologic prediction is a very important technology during underground construction.To area in coal mine down-hole tunnel Forward probe in the tunneling process of face directly affects the problems such as diaster prevention and control and downhole safety.With being actually needed, successively There are a series of technologies such as pilot heading, Advance Drilling to solve such problem, and these technologies are during practice Some are directly to use explosive to implement forward probe to face as man-made explosion.The main feature of dynamite source is exactly can With in the very strong seismic pulse signal of instantaneous excitation energy, but effect is undesirable in terms of repeatability is excited, while to surrounding Environment has an extremely strong destructiveness, the safety of related personnel is also constituted a threat to during work, for problem above, seminar is directed to Coal seam forward probe problem proposes a kind of impact type focus control system of adjustable energy output.

Electric hammer, in occupation of critical positions, belongs to road construction category product in electric tool, be one kind can impact and Rotatable hand held electric tool, and a kind of typical fluid impact machinery, be mainly used in concrete, timber, metal, The operations such as drilling and fluting on the working media such as ceramics and plastics.And current market sales of speed-regulating electric hammer has two kinds of regulations Mode：Step-less adjustment, multi-gear adjustment., can not be by manually pressing electric hammer because jitter amplitude is influenceed in being worked by electric hammer Mode carry out the stepless speed regulation of speed change and can not realize constant power output.It is defeated that although multi gear speed governing can make up stepless speed regulation Go out the shortcomings that power is unstable, but arbitrarily adjust the power of output like that without image of Buddha stepless speed regulation.Two kinds of regulative modes respectively have Pros and cons, step-less adjustment scope is wide, but degree of regulation is low, multi-gear adjustment stable output power, but adjustable range is very limited System, is both unable to reach requirement.So we need to design the power supply output system of Independent adjustable section, therefore seminar for it It has developed a set of small volume, portable impact-type electric hammer energy management system.Electric hammer structure is analyzed first, and test product refers to Mark, suitable circuit for power conversion is designed for it.Vibration frequency is to weigh an index of electric hammer ability, i.e. electric hammer motor rotates Gear band movable eccentric wheel interlocks piston movement and produces impact, promotes the number of block stamp reciprocating impact hammer handle.The vibration frequency of electric hammer Faster, then the energy exported also can be bigger, changes the vibration frequency of electric hammer by adjusting the input voltage of electric hammer.

The TSP203 PLUS of the auspicious experimental instruments and equipment limited production of Shanghai labor《Tunnel geological prediction system》It is from tunnel Road face starts to set 24 diameter 38mm backward by 1.5m spacing on the side wall of tunnel one with air rock drill, deep 1.5m, obliquely 10~20 ° hole, as exploration hole.From last exploration hole, 20m is each on the side wall of tunnel two backward beats If a 42~45mm of diameter, deep 2.0m, obliquely 5~10 ° hole, as signal receiver hole.Exploration hole should be located with receiver hole In on same plane.After appropriate emulsion insertion electric cap is put during detection, in exploration hole, water is filled, with throwing mud blasthole stemming, Detonated successively backward from face, so as to produce seismic wave.TSP203 PLUS need detonator as focus, its amplitude and frequency Uncontrollable, signal repeatability is poor.

CN102426385A is disclosed《A kind of improved TSP advance geologic predictions signal triggering and reception system and side Method》, it includes delay measuring instrument, it with being connected with closed-loop path on the explosive provided with detonator, while also respectively with main frame and tactile Device connection is sent out, the trigger is connected with detonator；Trigger is also connected with initiator.With initiator detonation letter is sent to trigger Number, trigger sends trigger signal to detonator and delay measuring instrument simultaneously, and delay measuring instrument starts timing, prolongs because detonator has When error, blow up the closed-loop path being connected with delay measuring instrument while detonation, delay measuring instrument is blown up in closed-loop path Stop timing simultaneously and send trigger signal to main frame, main frame starts to gather seismic signal while receiving trigger signal.

CN204101748U is disclosed《Combined type impulsion pressure danger zone seismic tomography prospecting is controllable with fluid pressure type self compensation Focus》, combined type impulsion pressure danger zone seismic tomography prospecting fluid pressure type self compensation controlled source, it is characterized in that it is by hole Strainer, self compensation mechanism, beater mechanism, connecting line composition.It in down-hole coal bed roadway workface lateral wall by constructing One row hole drilling.Controlled source is installed in each drilling.Strainer is locked in the borehole by swelling bag expansion in hole.Pass through The parameter of jump bit is adjusted, can adjust seismic wave energy, frequency size caused by controlled source.

The hammering focus hammering frequency of seismic tomography prospecting method is single so that the scope of application is limited.

The content of the invention：

The purpose of this utility model aiming at above-mentioned the deficiencies in the prior art, proposition it is a kind of based on the phased of controllable silicon Regulating circuit designs, and realizes that impact-type electric hammer exports energy control apparatus by adjusting voltage.

The utility model mainly solve in landsonar method hammer focus frequency it is single, scope of application limitation problem；Utilize The phase control for controlling silicon completes the regulation of output energy, solves hammering focus hammering frequency Single-issue, allows landsonar method to fit It is wider with scope, while voltage real-time display, it is ensured that the repeatability of seismic signal.

The purpose of this utility model is achieved through the following technical solutions：

A kind of impact-type electric hammer exports energy control apparatus, is to be connected by externally fed power supply 1 with step-down rectifying circuit 2, Step-down rectifying circuit 2 connects through 5V DC voltage generation circuits 3 and synchronizing signal generative circuit 4 with single-chip microcomputer governor circuit 5 respectively Connect, single-chip microcomputer governor circuit 5 is connected with voltage display module 6, and single-chip microcomputer governor circuit 5 is protected through thyristor regulating volt circuit 7, excessively stream Protection circuit 8 and energy output control circuit 9 connect and compose with electric hammer 10.

Beneficial effect：

External power source is realized two functions by the utility model by external power source adjustment unit by step-down rectifier, when The DC voltage for producing 5V is powered for single-chip microcomputer, and the signal of single-chip microcomputer input and output is data signal, the requirement to power supply Harshness, if voltage pulsation amplitude is larger, or supply voltage can cause single-chip microcomputer to go out not in the normal range of operation of single-chip microcomputer Now work not normal, or even the consequence of damage single-chip microcomputer；Second, producing synchronization zero-cross signal, zero cross signal is sent into single-chip microcomputer outside It is disconnected, ensure that system judges that the zero crossing moment of current signal is accurate, improve system reliability and accuracy.Compared to existing list One energy exports, and the utility model can be realized to being adjusted in the range of voltage 50V~220V, and real-time display shows in real time to voltage Show unit.The characteristics of energy control apparatus has larger adjustable range, and reliability is high and precision is high, is particularly suitable for use in larger The impact-type electric hammer of scope energy adjustment control.

Brief description of the drawings：

Fig. 1 impact-type electric hammers export energy control apparatus structured flowchart

Fig. 2 power supplys and generation zero-crossing signal circuit figure

Fig. 3 regulating circuit schematic diagrams

Fig. 4 system operation flow charts

Embodiment：

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings：

A kind of impact-type electric hammer exports energy control apparatus, is to be connected by externally fed power supply 1 with step-down rectifying circuit 2, Step-down rectifying circuit 2 connects through 5V DC voltage generation circuits 3 and synchronizing signal generative circuit 4 with single-chip microcomputer governor circuit 5 respectively Connect, single-chip microcomputer governor circuit 5 is connected with voltage display module 6, and single-chip microcomputer governor circuit 5 is protected through thyristor regulating volt circuit 7, excessively stream Protection circuit 8 and energy output control circuit 9 connect and compose with electric hammer 10.

As shown in Figure 1：External power source adjustment unit, including the 5V DC voltages of 1 step-down rectifying circuit of externally fed power supply 2 The signal of the synchronizing signal generative circuit 4 of generation circuit 3, single-chip microcomputer input and output is entirely data signal, therefore to power supply Requirement it is very harsh, if voltage pulsation amplitude is larger, or supply voltage, not in the normal range of operation of single-chip microcomputer, having can Single-chip microcomputer error in judgement, or even damage single-chip microcomputer can be made.The operating voltage of 51 single-chip microcomputers used in this control circuit is+5V straight Flow voltage.The tunnels of pulsation 12V mono- formed through reduction voltage circuit form 5V voltages and powered for single-chip microcomputer, and another way forms zero passage synchronization Signal, in order to which system judges the zero crossing moment of current signal.Power supply and zero cross signal generation module schematic diagram such as Fig. 2 institutes Show.

Voltage real-time display unit, including the voltage display module 6 of single-chip microcomputer governor circuit 5, start output energy hole electricity Road system, voltage controller power source acquiescence output 220V voltages, while charactron can show 220.System can detect whether that pressing keys are adjusted Economize on electricity pressure.If increasing voltage, system can judge whether current voltage is less than 220V, if being equal to 220V, then can directly display and work as Preceding voltage, voltage will not further increase, and continue to increase voltage if 220V is less than.Increase or decrease voltage in fact be exactly reduce or Increase the delay of current lead-through.System can judge current zero-crossing point according to synchronization zero-cross signal.Now current lead-through angle delay is Through changing, system starts to carry out timing to the delay after regulation.Delay is reached, system sends signal, Ran Houguang to optocoupler Coupling lights, and sends signal, controls controlled silicon conducting.Now voltage has been changed, and current voltage will be shown on charactron. As the same during reduction voltage, when equal to 50V, voltage will be reduced no longer, identical with increase voltage principle.

As shown in figure 3, energy adjustment output unit, including the output control of the energy of 7 current foldback circuit of thyristor regulating volt circuit 8 The T1 poles of controllable silicon and T2 poles are connected in power circuit by the electric hammer 10 of circuit 9 processed, voltage regulator circuit schematic diagram, controllable silicon control End processed is connected with optocoupler.Because controllable silicon directly can not be connected with single-chip microcomputer, therefore we adjust leading for controllable silicon by optocoupler Current flow angle.And because the civil power of input is 50Hz, therefore each regulating cycle is necessarily less than 20ms.Because switch element is working When high-frequency break-make, sizable voltage and current surge can be produced, it is therefore desirable to for one section in parallel of controllable silicon by resistance and The RC peak absorbing circuits that electric capacity is in series, so as to suppress surge current.The low order end of schematic diagram is defeated for the voltage after regulation Go out end, it will export 50-220V adjustable voltage, connect load, i.e. electric hammer herein.Impact-type electric hammer output energy control apparatus fortune Row flow is as shown in Figure 4.

Claims (1)

1. a kind of impact-type electric hammer exports energy control apparatus, it is characterised in that is by externally fed power supply (1) and step-down rectifier Circuit (2) connects, step-down rectifying circuit (2) respectively through 5V DC voltage generation circuits (3) and synchronizing signal generative circuit (4) and Single-chip microcomputer governor circuit (5) is connected, and single-chip microcomputer governor circuit (5) is connected with voltage display module (6), single-chip microcomputer governor circuit (5) it is connected structure with electric hammer (10) through thyristor regulating volt circuit (7), current foldback circuit (8) and energy output control circuit (9) Into.