CN2123570U

CN2123570U - Plug oscillating guide

Info

Publication number: CN2123570U
Application number: CN 92212749
Authority: CN
Inventors: 王海清
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-04-28
Filing date: 1992-04-28
Publication date: 1992-12-02

Abstract

The utility model relates to a plug oscillating guide, belonging to the dense machine tool of the concrete for building. The utility model is composed of a rod body, and a circuit part. The utility model is characterized in that the rod body is composed of an iron core, a coil curl, an armature iron, and a silicon steel sheet. A spring which is arranged between the iron core and the armature iron is a plate spring whose variable cross-section is formed in an omega shape. The circuit is provided with a power recovery circuit and an oscillation control circuit, which causes the utility model to have the advantages of simple structure, small size, light weight, and convenient operation and portability. Besides, the reliability is improved, the failure is reduced, and the energy-saving effect is obvious.

Description

Plug oscillating guide

The utility model relates to the closely knit facility of a kind of build concrete, specifically be meant the plug-in type vibrating head.

Traditional concrete compaction facility are rotary, and it drives eccentric wheel by motor by flexible axle and makes the execution unit vibration, and existing vibrating head is exactly this structure.Its complex structure, volume is big, Heavy Weight, and easy break-down, gives to carry with the building site operation and brings great inconvenience.Because be the vibration of adopting centrifugal planet to rotatablely move and produce, frictional dissipation is big, the power consumption height, efficient is low, though the existing patent application that the electromagnetic type vibrating head is also arranged, poor practicability is difficult to reach practical function and satisfies the actual needs that use.

The purpose of this utility model just provides and a kind of alternating current is changed into the immersion vibrator that converts mechanical oscillation after the DC pulse again to, and it is simple in structure, operation, easy to carry, low in energy consumption.

Solution of the present utility model is: be to be made of barred body and circuit two parts, a side is equipped with iron core in the shell of barred body, coil is housed on it, opposite side in the enclosure is equipped with armature and silicon steel sheet, between armature and the iron core spring is housed, power supply is by rectification, filtering, on-off circuit is given coil electricity, head and afterbody at barred body are equipped with spring respectively, wherein armature and the spring between the iron core at the barred body head is variable cross-section Ω matrix spring, the cross section minimum at couple zero point, armature and the spring between the iron core at the barred body afterbody are C type jump ring, and the Power Recovery circuit is housed between load and filter circuit, between load and on-off circuit oscillation control circuit is housed, its detailed content is described below referring to accompanying drawing:

Referring to Fig. 1, Fig. 2, immersion vibrator of the present utility model is to be made of barred body and circuit two parts.A side is equipped with iron core (15) in the shell (5) of barred body, coil (14) is housed on it, opposite side is equipped with armature (6) and silicon steel sheet (7) in shell (5), between armature (6) and the iron core (15) spring is housed, thereby formation electromagnet---spring vibration device, power supply A is by rectification B, filtering C, on-off circuit

Give coil (14) energising, through over commutation, filtering after-current at on-off circuit

Be added on the coil (14) under the situation about connecting, the magnetic force that is produced and the elastic force of spring make barred body produce vibration.Feature of the present utility model is at barred body head and afterbody spring to be housed respectively, wherein armature (6) and the spring (10) between the iron core (15) at the barred body head is variable cross-section Ω matrix spring, the cross section minimum at couple zero point, head vibration amplitude maximum because of barred body, require the performance of spring (10) to get well, through testing definite spring (10) is Ω matrix spring, and by the equal strength design, spring (10) is permitted that stress is low, rigidity is big like this, fatigue resistance is strong, thereby guarantees the dependable performance of barred body vibration.Amplitude at the barred body afterbody is zero, so spring (11) is a C type jump ring.Power Recovery F circuit is housed between load RL and filter circuit C, works as on-off circuit

When closing, to filter circuit C, obtain a Power Recovery this moment to the freewheel current on the load RL, has energy-conservation effect through Power Recovery circuit F, simultaneously also check the time-delay of electric current in the load, the output that has further improved vibration force.At load RL and on-off circuit

Between oscillation control circuit is housed, when the vibration on the load RL changed, promptly voltage changed, by oscillation control circuit original frequency of oscillation is changed, make channel frequency be synchronized with the mechanical oscillation frequency, guaranteeing that load has vibrates power output efficiently, satisfies the vibration performance requirement.Content of the present utility model further describes as follows:

Armature of the present utility model (6) is obliquely installed with respect to iron core (15), and the distance between iron core of barred body head (15) and the armature is far away, like this, when barred body produces vibration, the amplitude of its head is maximum, and afterbody is zero, makes concrete closely knit practical from the inside to surface, efficient.In circuit of the present utility model, be connected to commentaries on classics at the two ends of load RL and tear diode open Constitute Power Recovery to filter circuit C, work as on-off circuit

When closing, diode is torn in load, commentaries on classics open

Constitute the loop with filter circuit C, the afterflow in the load can be reclaimed on filter circuit.In oscillation control circuit of the present utility model, be to constitute by feedback signal G, operational amplification circuit H, integrating circuit I, signal generator J, 4 frequency dividing circuit K and power amplifier L, its structure is that the feedback signal G that is connected with load RL is connected with the input of operational amplification circuit H, its output is connected with the input of integrating circuit I to signal generator J, and the output of signal generator J is connected with 4 frequency dividing circuit K, power amplification circuit L in turn to on-off circuit

Input, at ordinary times, power supply is supplied with signal generator J voltage makes it produce vibration, 4 frequency dividing circuit K are divided into 1/4 cycle square-wave pulse with frequency and deliver to power amplifier L and amplify, and supply with on-off circuit at last

It is turned on and off, deliver to operational amplifier H, adjust the vibration frequency that changes signal generator J through integrating circuit I from the feedback signal G of load RL.

The immersion vibrator that the utility model provides has saved a motor, the electric and magnetic oscillation that is provided by the power supply of 220V has replaced the vibration that eccentric crop rotation circular motion produces, structure is greatly simplified, volume is little, in light weight, operation is carried very convenient, and reliability improves, fault reduces, and remarkable energy saving effect is arranged.

Accompanying drawing has been represented specific embodiments of the present utility model.

At first accompanying drawing is described:

Fig. 1 represents the structure chart of barred body;

Fig. 2 indication circuit theory diagram;

Fig. 3 representative circuit schematic;

Fig. 4 represents the current waveform exported in the load;

Fig. 5 represents the voltage waveform of control circuit output.

According to embodiment shown in the drawings, the structure of barred body is: a side is equipped with the iron core (15) of belt coil (14) in shell (5), the armature (6) that silicon steel sheet (7) are housed is obliquely installed, the one end is connected as a single entity by the end of foundary weight (8) with Ω matrix spring (10), the other end of Ω matrix spring (10) is by preceding bearing (17), parallels (18) is connected as a single entity with housing (5), pin (9) is the holding pin of spring (10), at the afterbody of iron core (15) rear support (13) being housed is fixed as one by lock ring (12), between armature (6) and rear support (13), C type jump ring (11) is housed, locking nut (4) has been threaded on the housing (5), locking nut (4) is gone up and is connected with sebific duct (1) by connector (2), and (16) are the steady pin of iron core (15).The structure and the principle of circuit part are: 50HZ, 220V power supply A are by 4 * D ₁The bridge rectifier B that constitutes is by capacitor C ₁And C ₂Be added to the on-off circuit that triode 1T constitutes to triode 2T through load RL after the filtering , triode 1T, 2T are by pulse transformer BT ₂ Terminal 1,2,3 is supplied with synchronizing signal and is turned on and off.When 1T and the conducting of 2T pipe, electric current flows through load RL, and the waveform of electric current makes barred body produce vibration as shown in Figure 5, and promptly iron core (15) drives housing (5) and produce vibration under the elastic force acting in conjunction of magnetic force under armature (6) effect and spring (10).When 1T and 2T pipe were closed, the afterflow on the load RL was torn diode open by commentaries on classics

₂* 2 at filter capacitor C ₁, C ₂On obtain a Power Recovery.In oscillation control circuit, power supply A, transformer BT ₁, rectification D ₃, filter capacitor C ₄, C ₅, voltage stabilizing CW supply control circuit voltage, divider resistance R ₄, R ₅Tell a reference voltage and supply with the signal generator J generation vibration that is made of voltage controlled oscillator CD, 4 frequency dividing circuit K are promptly two

Trigger 2

Vibration frequency is divided into 1/4 cycle square wave, and power amplifier BG is delivered in pulse ₁, voltage waveform as shown in Figure 4, through pulse transformer BT ₂Coupling is supplied with turning on and off of 1T, 2T pipe by end 1,2,3.Feedback signal G on the load RL is by R ₁And X ₁Voltage signal on the end passes through R ₉Deliver to operational amplifier BG ₂, by integrating capacitor C ₆And resistance R ₇, through R ₆Adjust R ₄, R ₅Dividing potential drop matter, thereby change the frequency of voltage controlled oscillator CD.R among Fig. 3 ₂, R ₃The piezoresistance that exceeds, R ₁₀And C ₇Constitute the natural oscillation circuit of CD oscillator, R ₈Be current-limiting resistance, D ₄Be speed stream diode, C ₃1T and 2T pipe are shielded.

Claims

1, a kind of immersion vibrator, be to constitute by barred body and circuit two parts, a side is equipped with iron core in the shell of barred body, coil is housed on it, opposite side in the enclosure is equipped with armature and silicon steel sheet, between armature and the iron core spring is housed, power supply is by rectification, filtering and on-off circuit are given coil power supply, feature of the present utility model is at the head of barred body and afterbody spring to be housed respectively, wherein armature (6) and the spring (10) between the iron core (15) at the barred body head is variable cross-section Ω matrix spring, the cross section minimum at couple zero point, spring (11) at the barred body afterbody is a C type jump ring, Power Recovery circuit F is housed between load RL and filter circuit C, between load RL and on-off circuit D, oscillation control circuit is housed.

2, immersion vibrator according to claim 1 it is characterized in that armature (6) is obliquely installed with respect to iron core (15), and the distance between iron core of barred body head (15) and the armature (6) is far away.

3, immersion vibrator according to claim 1 is characterized in that being connected to commentaries on classics at the two ends of load RL tears diode open

Constitute Power Recovery to filter circuit C.

4, immersion vibrator according to claim 1, it is characterized in that oscillation control circuit is to be made of feedback signal G, operational amplification circuit H, integrating circuit I, signal generator J, 4 frequency dividing circuit K, power amplifier L, its structure is that the feedback signal G that is connected with load RL is connected with the input of operational amplification circuit H, its output is connected with the input of integrating circuit I to signal generator J, and the output of signal generator J is connected with 4 frequency dividing circuit K, power amplification circuit L in turn to on-off circuit

Input.