CN87212209U - Inserting type concrete vibrator speeded-up by epicyclic gear - Google Patents

Abstract

The utility model discloses an inserting concrete vibrator speeded-up by epicyclic gears, belonging to a vibrating-densifying machine used in concrete pouring constructions, and is characterized in that the utility model changes the structure that a rolling conical roller path supported by a cantilever in an existing vibrating rod does irregular constrained rotations to generate vibrations, but adopts the structure of epicyclic gears for acceleration and an eccentric shaft with double supporting points to generate forced exciting force with high speed and high frequency. Therefore, the vibrating rod can not bring about automatic vibration stopping phenomena either in starting up or in work process, and all rotating pieces work in lubricating-oil, which improves the stress situation of the rotary pieces in the vibrating rod, enhances the service life of the vibrating rod, and reduces noise to below 73dB (A).

Description

Inserting type concrete vibrator speeded-up by epicyclic gear

The utility model belongs to vibration compacting machinery used in the pouring concrete construction, is applicable to the dense concrete work in the engineerings such as building, railway, bridge, hydraulic engineering, port and pier.

Known this type of concrete vibrator normally is made up of power source (motor or motor), flexible axle assembly and vibrating head.In vibrating head, tapper is made rolling movement along raceway, causes the centrifugal action of mass unbalance, to obtain dither.The deficiency that this vibrator exists is difficulty (motor start then need manually knock assist starting of oscillation), unlubricated (then depressed if any oil, water in the rod), quick abrasion, a fault rate height of starting of oscillation; Dark when breaking concrete easily by reinforcing bar or closely knit after concrete clamp, cause failure of oscillation, and the vibrating head after clamping is difficult for taking-up; Noise height after it starts in addition, giving does not disturb residents in the construction at a high speed brings insoluble problem.

The purpose of this utility model provides a kind of efficient, long-lived, low noise and has strong exciting force, safe and reliable novel vibrating device.

The utility model is realized by following technique measures:

A kind of by power source motor or motor), the concrete vibrator formed of flexible axle assembly and vibrating head, it is characterized in that vibrating head by barred body, be installed in planetary carrier in the barred body, be installed in the barred body and the gear ring that is meshed with planetary gear and tooth axle and plug with the tooth axle and the eccentric shaft that is installed in the barred body is formed.Its operating principle is as follows:

When the drive power source flexible axle and when driving joining with it planetary carrier rotation, planetary gear on the frame is except that revolving round the sun with support, also by with the reverse rotation of the engagement of gear ring and drive the tooth axle and rotate at a high speed, like this, the eccentric shaft of pegging graft with the tooth axle is promptly producing the strong exciting force of high frequency under the rotation at a high speed, thereby and by barred body generation amplitude vibration compacting concrete.

Below by embodiment and accompanying drawing the utility model is described in further detail.Accompanying drawing is depicted as the vibrating head schematic diagram of the utility model concrete vibrator.Seal member 1, bearing 3,9,10,11 are housed in the barred body 2; Adorn planetary wheel carrier 5 on the bearing 3, be equipped with planetary gear 8 on it; Gear ring 6 that planetary gear 8 is interior with being loaded on barred body and the tooth axle 7 that is loaded on the bearing 10 are meshed; Afterbody at planetary wheel carrier 5 and barred body 2 is shaped on the screw thread that is connected with flexible shaft end with hose coupling respectively; The joint of eccentric shaft by interface and tooth axle 7 that is contained on the bearing 9,11 joins, and axle sleeve 12 is housed on the eccentric shaft, and when injecting lubrication oil in the barred body, axle sleeve 12 can prevent that eccentric shaft 4 from stirring oil when high speed rotating.

Advantage of the present utility model is: changed in the past and to have done irregular constraint with the tapper of cantilever support along tapered raceway in the vibrating head and rotate vibrative structure; and adopt the planetary gear speedup to reach two fulcrum eccentric shaft structures; thereby produce mandatory high-speed high frequency exciting force; make vibrating head no matter in start or the course of work, voluntarily failure of oscillation phenomenon can not take place all; greatly improved simultaneously the force-bearing situation of revolving part in the vibrating head; and whole revolving parts are worked in lubricating oil; this has just greatly improved the service life of vibrating head; simultaneously with reducing noise to 73dB(A) below (Ministry of Construction's standard is 85dB(A)), other performance all reaches JJ-82 Ministry of Urban and Rural Construction and Environmental Protection ministry standard.

Claims (2)

1, a kind of concrete vibrator of forming by power source (motor or motor), flexible axle assembly and vibrating head, it is characterized in that vibrating head is by barred body 2, be installed in seal 1, bearing 3,9,10,11 gear rings 6 in the barred body 2, be loaded on the planetary carrier 5 on the bearing 3, the planetary gear of installing on the support 58 is installed in the tooth axle 7 that is meshed with planetary gear on the bearing 10 and is loaded on the bearing 9,11 and with the eccentric shaft 4 that tooth axle 7 is pegged graft and forms.

2, concrete vibrator as claimed in claim 1 is characterized in that on the described eccentric shaft 4 axle sleeve 12 being housed.

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