CN2532105Y

CN2532105Y - Sieving mechanism for screen scarifier

Info

Publication number: CN2532105Y
Application number: CN 01233387
Authority: CN
Inventors: 张光彪; 刘冬彬; 刘来顺
Original assignee: TANGSHAN RAILWAY MATERIAL AND APPLIANCE Manufacturing Co Ltd
Current assignee: TANGSHAN RAILWAY MATERIAL AND APPLIANCE Manufacturing Co Ltd
Priority date: 2001-08-16
Filing date: 2001-08-16
Publication date: 2003-01-22
Anticipated expiration: 2011-08-16

Abstract

The utility model relates to a sieving mechanism for a screen scarifier, which is suitable for a slag crushing screen scarifier at the sleeper bottom of a railway. The utility model comprises a screen box, a screen plate and an excitation mechanism, wherein the screen box is installed on a bracket of a screen scarifier through a spring damping mechanism, and the utility model has one screen box; the screen plate is in a double-layer string type; two common motors in the excitation mechanism are respectively installed on the bracket of the screen scarifier; when a box body vibrates, steel wires of a screen are also vibrate, and the motors used as vibration sources are not vibrated. The utility model has the advantages of light gross weight involved in the vibration, energy and electricity saving, low failure rate, good sieving effect, high work efficiency, etc.

Description

The screening mechanism of screen scarifier

Technical field:

The utility model relates to a kind of screening mechanism of screen scarifier, is applicable on the railway pillow end ballast aggregate inclined screen-cleaning machine to use.

Background technology:

The utility model is the improvement at the screening mechanism of the QQS-300 type screen scarifier of railway pillow end ballast cleaning use, existing screening mechanism is by the sieve of two steel work and together, 2 3.2KW vibrating motors of each sieve installed inside are as vibration source, owing to 1168 kilograms of 4 motor weight, add 3900 kilograms of two screen boxs and screening things, add up to more than 5000 kilogram weight to participate in vibration, if run into the big highway section of viscosity, ballast sieves clean degree and falls greatly, and treating capacity does not reach 300 meters ³/ hour requirement, the motor exciting force can only be transferred to greatest limit for reaching requirement, this has just aggravated the motor bearings wearing and tearing, and the life-span reduces, and the cast iron housing of motor easily shakes and splits, it is very big to change the machine operation difficulty, because of the spatial constraints hanging device can't operation, must artificial dismounting, not only labor strength is big, and the time is long, in addition, sieve plate is that mesh is stopped up by ballast easily by the reinforcing bar establishment, cause the leakage quarrel rate of compass screen surface to reduce, the clean degree of screening is bad, when serious, blocks between compass screen surface up and down, can not operation, must the parking labor cleaning.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and provides that the gross weight that a seed ginseng shakes is light, motor does not participate in screen box and the screening mechanism of the vibration of screening thing, long service life, high efficiency, screening effect is good, fault rate is low screen scarifier.

The purpose of this utility model is achieved in that it comprises screen box, sieve plate, exciting agency, screen box is installed on the screen scarifier support by spring shock absorption mechanism, screen box is one, four jiaos of location dampers that the teeter of restriction casing is housed of casing, and the screen box inner bottom part has the high-molecular polythene plate; Sieve plate is double-deck string formula; Two Daepori three-way motors are installed in respectively on the screen scarifier support in the exciting agency, link by yielding coupling and two groups of eccentric activators, and two groups of vibrators link with the flexible disc of jackshaft by wherein, and the bearing support and the box side of vibrator link with bolt.

Compared with prior art, the utlity model has following advantage:

1, joins light, the energy saving of the gross weight of shaking.Screen box is by original two casings that change big compass screen surface into, and box weight drops to 3300 kilograms, adds that 2 excitings think highly of 580 kilograms, and the gross weight that ginseng is shaken reduces to 3880 kilograms.

2, motor does not participate in the vibration of screen box and screening thing, long service life, and bearing is not fragile, and fault rate is low.To use common electric machine with vibrating motor instead as vibration source originally, and be installed on the screen scarifier support.

3, screening effect is good.Sieve plate changes soft wire rope into and is organized on the steel frame, and in the screen box vibration simultaneously, wire rope vibrates as string, the mesh size has the trace change, and compass screen surface is difficult for by ballast, sludge blockage, can improve compass screen surface and leak the quarrel rate, sieve clean degree and obviously improve, and solved parking labor cleaning problem.

4, high efficiency, this machine can reach 350--400 rice ³/ hour, adapting to the site operation needs, fault rate is low, saves recondition expense, when reducing the check man, has alleviated labor strength.

Description of drawings:

Fig. 1 is a front view of the present utility model.

Fig. 2 is a lateral view of the present utility model.

The specific embodiment:

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

As shown in Figure 1 and Figure 2, it comprises screen box 10,

sieve plate

8,9, motor 1, yielding coupling 2, vibrator 3, flexible disc, jackshaft 5, screen box 10 is installed on the screen scarifier support by spring shock absorption mechanism, its screen box 10 is one, be welded by steel side plate and seamless steel pipe, four jiaos of upper bracket of the spring 12 and spring lower supports 6 that fixing spring 11 is housed of casing, because of spring lower support 6 is installed on the screen scarifier support, and whole screening mechanism is installed on the screen scarifier, screen box 10 inner bottom parts have high-molecular polythene plate 7, smooth abrasion-proof; Sieve plate is double-deck circular motion string formula vibrosieve, and upper sieve plate 9, down sieve plate 8 uses timber wedge 4 tightly on casing respectively, and two sieve plates are parallel and the inclination angle arranged; Two Daepori three-way motors 1 are installed in respectively on the screen scarifier support, link by yielding coupling 2 and two groups of eccentric activators 3, in two vibrators 3 the flexible disc of being with link to each other with jackshaft 5.Vibrator 3 links to each other with the articulation hole bolt with screen box 10 side plates because of its bearing holder (housing, cover) and casing is connected as a single entity, and whole vibration source system is all on an axis.

The course of work of the present utility model: starter motor 1, driving two vibrators 3 by yielding coupling 2 synchronously rotates, thereby drive eccentric block revolution in the vibrator 3, the inertia force (being exciting force) that the eccentric block revolution produces is passed to casing 10 by the bearing of vibrator 3, thereby evoke

sieve

8,9 vibrations, ballast on the compass screen surface is subjected to active force that compass screen surface moves upward by impelling, the segment distance that advances falls back on the compass screen surface again, meanwhile, soft wire rope is also done vibration, eccentric block generation centrifugal intertia force direction changes with the position at eccentric block place, deviate from center of rotation forever but point to, it is circle or sub-circular that this power makes the bin movement track, and the big I of exciting is adjusted by the quantity (being weight) that changes eccentric block.

Claims

1, a kind of screening mechanism of screen scarifier, it comprises screen box, sieve plate, exciting agency, screen box is installed on the screen scarifier support by spring shock absorption mechanism, it is characterized in that:

A, screen box are one, four jiaos of location dampers that the teeter of restriction casing is housed of casing, and the screen box inner bottom part has the high-molecular polythene plate;

B, sieve plate are double-deck string formulas;

Two Daepori three-way motors are installed in respectively on the screen scarifier support in c, the exciting agency, link by yielding coupling and two groups of eccentric activators, and two groups of vibrators link with the flexible disc of jackshaft by wherein, and the bearing support and the box side of vibrator link with bolt.