CN2274560Y

CN2274560Y - Low noise vibration machine for concrete sleeper

Info

Publication number: CN2274560Y
Application number: CN 96244118
Authority: CN
Inventors: 赵培显; 赵福绵; 裴庆全; 郝立成; 王惠君; 张继树
Original assignee: FENGTAI BRIDE BEAM FACTORY
Current assignee: FENGTAI BRIDE BEAM FACTORY
Priority date: 1996-11-15
Filing date: 1996-11-15
Publication date: 1998-02-18
Anticipated expiration: 2006-11-15

Abstract

The utility model relates to a low noise vibration table for concrete sleepers. The utility model is composed of a vibration generator, a model and more than one direct-current electromagnetic sucking disc, wherein the direct-current electromagnetic sucking discs are arranged on the vibration generator of the vibration table, the model and the vibration table are formed into a rigid whole body through the electromagnetic suction force of the direct-current electromagnetic sucking discs, the vibration generator adopts a sealed type, and bearings are lubricated by oil instead of grease. The utility model has the advantages that the noise of the vibration table is reduced, the select range of vibration frequency is enlarged, and the utility model is favorable for increasing the quality of products.

Description

Low-noise concrete sleeper shake table

The utility model is a kind of concrete sleeper molding oscillating table, particularly relates to the noise pollution and the performance of shake table.

At present, each sleeper factory shake table ubiquity noise pollution serious problems of China.This mainly is because shake table and sleeper model can not one synchronous vibrations, due to clashing between the two.Once did a large amount of exploration work for addressing this problem.In addition, press concrete formation jolt ramming theory, the performance parameter of the shake table that uses neither optimum value at present.

The purpose of this utility model provides and a kind ofly reduces noise significantly, improves working conditions the concrete sleeper shake table that performance parameter is good.

The purpose of this utility model is achieved in that low-noise concrete sleeper shake table is made up of vibrator and model, on the basis of existing sleeper shake table, increase the direct solenoid sucker, this direct solenoid sucker is installed on the shake table vibrator, electromagnetic attraction by sucker makes model and shake table become a rigid unitary, described vibrator is sealed, and bearing changes oil lubrication into by original grease lubrication.

The utility model compared with prior art has following advantage: 1, owing to increased the direct solenoid sucker, make model and shake table become a rigid unitary, synchronous vibration during vibration, thereby eliminated impact noise greatly, noise is by original 115dBA, reduce to 95dBA, met the relevant regulations of national labour protection; 2, because vibrator has been made sealedly, and for oil lubrication, vibration frequency is selected by selecting in 0-33Hz originally, and expanded in 0-50Hz, therefore helped improving the quality of products; 3, the utility model is simple in structure, cost is low.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model magnechuck front view;

Fig. 2 is the utility model magnechuck vertical view;

Fig. 3 is the utility model vibrator front view;

Fig. 4 is the utility model vibrator left view;

Fig. 5 is the utility model vibrator vertical view;

Fig. 6 is the assembling schematic diagram of the utility model magnechuck and vibrator.

Magnechuck 14 as shown in Figure 1 and Figure 2, shell 1, the soft material that bumps of iron core 2 usefulness are made, and put into solenoid 6 between them.Casing cover 3 and iron core lid 5 are fixing solenoid 6 by pressing plate 4 and adjustment pad 7.Its center platen 4 is to make with diamagnetic material.Space between shell 1, iron core 2 and the solenoid 6 is full with filling insulating material.When feeding direct current for coil 6, in the closed magnetic circuit that shell 1, iron core 2, casing cover 3, iron core shell 5 and pattern board are formed, form magnetic field.When magnetic flux was enough, model and magnechuck can hold securely, and suction can reach more than 2 tons.

Vibrator 15 structures are as Fig. 3, Fig. 4, shown in Figure 5.Casing 8 is formed an airtight container with end cap 9, and the lubricating oil of packing into is given bearing lubrication.Axle 10 is placed in the casing 8 by bearing 11.Basic eccentric 12 and additional eccentric 13 are fixed on the two ends of axle 10.When driving shaft 10 rotations, basic off-centre 12 and additional off-centre 13 are rotated together, drive whole vibrator and vibrate.Because bearing 11 has been realized oil lubrication, make the rotating speed of axle 10 reach 3000rpm, the vibration frequency of whole vibrator can reach 50Hz.

Fig. 6 is magnechuck and vibrator assembling schematic diagram.Magnechuck 14 becomes an integral body with vibrator 15 by bolted.Put two magnechucks on each vibrator.When vibrator vibrates, drive sucker and vibrate together.

The shake table that uses below by II type sleeper 2 * 5 models illustrates vibrator, magnechuck application example.

2 * 5 pattern types can use 8-12 vibrator, and concrete number adds steel plate position and quantity decision according to the model bottom, generally selects 9-11 for use.Each vibrator supports with four big springs, and two magnechucks are installed on each vibrator.Use flexible shaft coupling between the vibrator, drive by synchronous case by a 37KW motor.The course of work is: model is put to shake table, connects the magnechuck power supply, and at this moment model and shake table become a rigid body by magnechuck suction.Actuating motor, the vibration beginning.The vibration motivation that will have a power failure earlier that finishes is cut off the power supply magnechuck again, at this moment, just can transport vibrocast concrete and model.Then next set of model is started working.

Claims

1, low-noise concrete sleeper shake table, form by vibrator and model, it is characterized in that: increase the direct solenoid sucker more than 1, described direct solenoid sucker is installed on the vibrator of shake table, electromagnetic attraction by sucker makes model and shake table become a rigid unitary, described vibrator is sealed, and bearing is oil lubrication.

2, shake table according to claim 1, it is characterized in that: described direct solenoid sucker is made up of shell, iron core, casing cover and electric short circle, put into solenoid between described shell and iron core, the space between this shell, iron core and the solenoid is full of with insulating materials.

3, shake table according to claim 1 and 2 is characterized in that: described sealed vibrator is made up of casing and end cap, and axle is placed in the casing by bearing, and basic off-centre and additional off-centre are fixed on the two ends of axle.

4, shake table according to claim 1 is characterized in that: described direct solenoid sucker is 2.

5, shake table according to claim 1 is characterized in that: described vibrator is 8-12.

6, shake table according to claim 5 is characterized in that: described vibrator is 9-11.