CN2147050Y

CN2147050Y - Ultrasonic stain remover for machine parts

Info

Publication number: CN2147050Y
Application number: CN 93202872
Authority: CN
Inventors: 陈昂泽
Original assignee: Chenhui Check And Test Tech Dept Beijing
Current assignee: Chenhui Check And Test Tech Dept Beijing
Priority date: 1993-02-16
Filing date: 1993-02-16
Publication date: 1993-11-24
Anticipated expiration: 2003-02-16

Abstract

The utility model discloses an ultrasonic rust remover for machine parts, which is composed of a piezoelectric type low-frequency high-power ultrasonic transducer. By utilizing the cavitation of the supersonic wave, the sound-pressure effect can reach the purposes of convenience, high speed, low noise, no corrosion, no pollution, and rust removal. The utility model has good rust removing effect, and in particular, the ultrasonic rust remover for machine parts can remove the rust of the large quantity of shaped parts applied by the rolling stocks in 5-10 minutes. The workpieces do not has residual rust spots after the rust removal, and the metal natural color is exposed.

Description

Ultrasonic stain remover for machine parts

The utility model is the derusting device that a kind of applying piezoelectric formula low-frequency high-power ultrasonic transducer is formed, this device be mainly a large amount of special-shaped workpieces of rolling stock easily and fast, thoroughly remove corrosion layer and design.

The derusting method of present industrial employing is mechanical means, chemical method, and these method rust cleaning times are long, and particularly the corrosion layer to place, dead angles such as the narrow slit of the irregular special-shaped workpiece of geometry, cavity, hole is difficult to remove clean.Produce the problem of environmental pollution that noise, dust, chemical reagent etc. cause simultaneously.

The purpose of this utility model provides a kind of low noise, pollution-free, particularly is suitable for the rolling stock special-shaped workpiece and as wheel, gear, screw mandrel, coil spring, cylinder, booster, oil pump, oil such as is chewed at the device that workpiece is thoroughly removed corrosion layer easily and fast.

In order to achieve the above object, the utility model has adopted two with the different piezoelectric type low-frequency high-power ultrasonic transducer of upper frequency, they are connected with ultrasonic generator after with the lead parallel connection and be installed in the box body, box body is equipped with in the groove and waits to eliminate rust workpiece and liquid medium at the groove internal upper part.After connecting power supply, the electrical power that ultrasonic generator produces is converted to acoustic energy and produces cavitation and acoustic pressure effect in liquid medium through ultrasonic transducer: the microjet that forms nearly thousand atmospheric pressures impacts each position of parts, the corrosion layer of component surface peels off from workpiece rapidly, and the corrosion layer at each position of parts rapidly, be eliminated to noresidue.

Describe concrete structure of the present utility model and working condition in detail below in conjunction with accompanying drawing:

Fig. 1 the utility model schematic diagram

The half sectional view of Fig. 2 piezoelectric type low-frequency high-power ultrasonic transducer

The utility model has adopted two with upper frequency piezoelectric type low-frequency high-power ultrasonic transducer 4 inequality, these transducer 4 usefulness leads 5 backs in parallel are linked together on the box body 3 that is installed in groove 1 internal upper part with supersonic generator 2, this device is characterised in that the formation of ultrasonic transducer 4 is: a disc protection cover cap 6 is embedded in the groove of columnar protective cover 7 upper ends, the parts of ultrasonic transducer 4 connect with bolt 13 in proper order according to top-down connection in the cover: a ultrasonic reflection rod 8, two electrodes 9, two piezo-electric crystals 10, an emission rod 11, internal diameter of socket has the coupling ring 12 of screw thread on the boss of emission rod, ultrasonic transducer 4 is fixed on the box body 3 by coupling ring 12, has filled the approaching liquid filler of acoustic impedance value and box body 3 in the ultrasonic transducer 4 after fixing and the cavity of 3 formation of box body.

When 220 volts alternating currents are added on the supersonic generator 2, supersonic generator is 20-40Kz for ultrasonic transducer 4 provides frequency immediately, voltage is more than 2 kilovolts, electric current is the above electrical power of 4mA, ultrasonic transducer 4 can convert electrical energy into the part emission ultrasonic wave of acoustic energy and corrosion in groove 1 continuously rapidly, under the effect of ultrasonic cavitation and acoustic pressure, the microjet that forms nearly thousand atmospheric pressures impacts to each position of corrosion part, but the corrosion layer of component surface was eliminated to noresidue in 10 minutes and manifests the metal true qualities.

The size of the selection of ultrasonic power and groove 1 is mainly selected design according to the corrosion degree of parts, the size of corrosion area.

The general water of liquid medium.

Characteristics of the present utility model:

1, rust cleaning efficient height: can eliminate rust in general 5-10 minute.

2, rust cleaning is effective: no remaining rust on the workpiece, expose the metal true qualities, the shaped piece that eliminates for the conventional method difficulty especially.

3, pollution-free: whole rust cleaning process is a conversion process of energy, and medium is a water, has overcome Mechanical Method, the inevitable corrosive environment pollution problem of chemical method.

4, easy to use, stable working state: ultrasonic transducer connects with screw thread with coupling ring.Being difficult to of having overcome that the prior art bonding way brings changed or the problem of the unstable working condition that causes because of bonding quality.

5, entrant sound rate height, energy consumption are little: between transducer and box body filling acoustic impedance value and the approximate material of box body, thereby acoustical coupling good, reduced energy consumption.

6, antijamming capability is strong: avoid acoustic jamming by different frequency with conversion method.

Claims

1, the ultrasonic derusting device of a kind of component of machine, adopt two with the different piezoelectric type low-frequency high-power ultrasonic transducer (4) of upper frequency that it is in parallel and link together with supersonic generator (2) and to be installed on the box body (3) of groove (1) internal upper part with lead (5), the feature of this device is that the formation of ultrasonic transducer (4) is: a discoidal protection cover cap (6) is embedded in the groove of columnar protective cover (7) upper end, use bolt (a 13) ultrasonic reflection rod of fixed connection (8) in the cover from top to bottom in proper order, two electrodes (9), each piezo-electric crystal (10) and then of each electrode below, an emission rod (11), internal diameter of socket has the draw-barring (12) of screw thread on the boss of emission rod (11), ultrasonic transducer (4) is fixed on the box body (3) by coupling ring (12), has filled acoustic impedance value and the approaching liquid filler of box body (3) in the cavity that forms between ultrasonic transducer (4) after fixing and box body (3).