CN2255471Y

CN2255471Y - Concrete vibrator

Info

Publication number: CN2255471Y
Application number: CN 96224631
Authority: CN
Inventors: 程新中
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-16
Filing date: 1996-09-16
Publication date: 1997-06-04
Anticipated expiration: 2006-09-16

Abstract

The utility model relates to a concrete vibrator, and is formed by that a power supply device provides low-voltage intermediate-frequency three phase power supply, which is inputed to a low-voltage intermediate-frequency motor in a vibrating head by a feeder device, the low-voltage intermediate-frequency motor directly drives an eccentric block in the vibrating head to rotate with a rotary speed about 11000 revolutions per minute, and the vibrating head vibrates dramatically. The vibrator dose not need a flexible shaft to transfer dynamic force. For adopting low-voltage power supply, the safety of the use of the utility model is enhanced. A cable used for feeding power is arranged between the vibrating head and the power supply device, so the distance between the power supply device and the vibrating head is enhanced from a plurality of meters to 100 meters. The utility model has theexcellent performances of safety, high efficiency, no maintenance, etc., and is an ideal substitute for a traditional metal flexible shaft transmission vibrator.

Description

Concrete vibrator

The utility model relates to a kind of concrete vibrator.

Present widely used concrete vibrator generally is mechanical flexible axle transmission, be that threephase asynchronous drives mechanical flexible axle, the other end of flexible axle drives a speed increasing mechanism, make vibration head produce vibration, there is following defective in this kind of drive: 1, application life is short: because it adopts the flexible axle transmission, certainly lead to metal fatigue, use a period of time just must change flexible axle; 2, use is dangerous: owing to be that threephase asynchronous machine passes through metal flexible axle transferring power to vibration head, in case the motor electric leakage, vibration head is charged, can cause whole building site steel mesh reinforcement charged, will be very dangerous; 3, owing to be the transmission of metal flexible axle, the distance of transmission is confined in several meters, and so just necessary often while travel motor and vibration head have increased the manpower burden.

The purpose of this utility model is to provide a kind of safe in utilization, concrete vibrator that the life-span is long.

The utility model is realized with following mode: a kind of coagulation upper vibration generator, it draws together power supply, feeder equipment and vibration head, motor one generating set that electric supply installation is made up of motor and generator, its motor rotor and generator unit stator are loaded on the same axle jointly, after motor is imported 880 coucher frequency powers, drive integral shaft generator generating output low pressure intermediate frequency three phase mains, on the low pressure mid-frequency motor of low pressure intermediate frequency three phase mains in the feeder equipment inputted vibration head of cable and switch enclosure composition, vibration head is by the low pressure mid-frequency motor, power transmission shaft, eccentric block and upward lower contact, head-shield is formed, the low pressure mid-frequency motor is loaded in the vibration head motor housing, its armature spindle two ends are supported on respectively in the bearing that is installed in top connection and the lower contact, the power transmission shaft two ends are supported on respectively in the bearing that is contained on lower contact and the vibration head-shield, power transmission shaft is directly driven by the low pressure mid-frequency motor, eccentric block is loaded on the power transmission shaft, the top connection two ends respectively with hose coupling and motor housing thread connection, the lower contact two ends respectively with motor housing and vibration head-shield thread connection.

The utility model adopts low pressure intermediate frequency asynchronous machine directly to drive vibration head, do not need the flexible axle transferring power, owing to adopt low-voltage power supply, thereby improved the safety of using greatly, adopt cable-fedly between vibration head and the electric supply installation, can make the distance between electric supply installation and the vibration head bring up to 100 meters by existing several meters.The utlity model has excellent properties such as safe, efficient, non-maintaining, is the desirable substitute products of the vibrator of traditional metal flexible axle transmission.

Accompanying drawing has provided an embodiment of the present utility model.

Fig. 1 is the utility model electric supply installation structural representation;

Fig. 2 is the utility model vibration head structural representation.

With reference to the accompanying drawings the utility model is described in further detail:

With reference to Fig. 1, the utility model electric supply installation is made of special motor one generating set, unit is by generator amature 1, generator unit stator 2, bearing cover 3, armature spindle 4, bearing 5, motor stator 6, motor rotor 7, end cap 8, casing 9, socket box 10, junction block 11, three-phase socket 12 is formed, its generator unit stator 2 all is loaded on the axle 4 with motor rotor 7, power frequency supply from 380 volts of junction block input motor stators, the several sockets that connect side by side in the power supply thereto that the 48 volts of intermediate frequencies of low pressure that obtain from motor stator are 200 hertz are for several vibration head uses.Feeder equipment is made up of cable 13, switch enclosure 14 and protecting hose 15, its cable length can be determined in 100 meters as required, switch can be controlled the break-make of vibration head built-in motor nearby, and protecting hose 15 (interior dress threephase cable) directly inserts vibration head, plays protective action.With reference to Fig. 2, vibration head of the present utility model is by protecting hose 15, hose coupling 16, junction block 17, zero RunddichtringO 18, top connection 19, low pressure intermediate frequency motor casing 20, motor stator 21, motor rotor 22, bearing 23, lower contact 24, bearing 25, vibration head-shield 26, eccentric block 27, power transmission shaft 28 is formed, protecting hose 15 is set on the hose coupling 16, junction block 17 is loaded in the hose coupling 16, hose coupling 16 is the earth's crust 20 thread connection outside top connection 19 and motor, add zero RunddichtringO sealing protection between hose coupling 16 and the top connection 19.Vibration head-shield 26 is threaded with motor casing 20 by lower contact 24, add zero RunddichtringO sealing protection between vibration head-shield 26 and the lower contact 24, the motor rotor shaft lower end processes a block, directly insert in the straight trough of power transmission shaft 28 upper ends, eccentric block 27 is fixed on the power transmission shaft 28, also can make one with it, power transmission shaft 28 is by bearings at both

ends

25,29 supportings, the power supply of the 48V200HZ that the utility model is sent here by electric supply installation is through cable, deliver to the low pressure intermediate frequency motor in the vibration head behind the switch, low pressure intermediate frequency Motor Drive eccentric block makes vibration head produce strong vibration with about 11000 rev/mins rotating speed rotation.

Claims

1. concrete vibrator, it draws together power supply, feeder equipment and vibration head, it is characterized in that: motor one generating set that electric supply installation is made up of motor and generator, its motor rotor [7] is loaded on the same axle [4] jointly with generator unit stator [2], after motor is imported 380 coucher frequency powers, drive integral shaft generator generating output low pressure intermediate frequency three phase mains, on the low pressure mid-frequency motor of low pressure intermediate frequency three phase mains in the feeder equipment inputted vibration head of cable [13] and switch enclosure [14] composition, vibration head is by the low pressure mid-frequency motor, power transmission shaft [28], eccentric block [27] and upward lower contact, head-shield is formed, the low pressure mid-frequency motor is loaded in the vibration head motor housing [20], its armature spindle [22] two ends are supported on respectively in the bearing that is installed in top connection [19] and the lower contact [23], power transmission shaft [28] two ends are supported on respectively in the bearing that is contained on lower contact [23] and the vibration head-shield [26], power transmission shaft [28] is directly driven by the low pressure mid-frequency motor, eccentric block [27] is loaded on the power transmission shaft [28], top connection [19] two ends respectively with hose coupling [16] and motor housing [20] thread connection, lower contact [23] two ends respectively with motor housing [20] and vibration head-shield [26] thread connection.