CN2729129Y

CN2729129Y - Control device for level of asphalt stock bin

Info

Publication number: CN2729129Y
Application number: CN 200420068785
Authority: CN
Inventors: 许少铭; 胡宏秋
Original assignee: Sany Heavy Industry Co Ltd
Current assignee: Sany Heavy Industry Co Ltd
Priority date: 2004-09-24
Filing date: 2004-09-24
Publication date: 2005-09-28
Anticipated expiration: 2014-09-24

Abstract

The utility model relates to a control device for level of asphalt stock bin, characterized in that a sensor is arranged inside the asphalt stock bin, and the sensor is connected with a controller via an A/Dconverting module. The controller is inserted into a material valve and a one-level discharge proportional valve. And the sensor is an ultrasonic sensor whose height can be adjusted and which can rotate, mounted on the sleeve of the sensor. The sleeve is hinged with a slider provided with a sliding groove and fixed on the inner side of the bin, the upper part of the sensor is also provided with a striker plate. For a bin level control device is used in the utility model, the helix material mixing device of a mixing bin can be forced evenly and stably, which improves the temperature and material evenness of asphalt concrete material, and compensates the insufficiency of original hopper, and synchronously, when the hopper arrives to the set position, a charging motor can be closed automatically, and the utility model can operate and control the entry and exit of the materials of a transport truck in a better way, and avoid the blindness of the operation, secondly the position installation of the sensor can be accommodated according to need, which can further improve the accuracy and precision of sensor testing, and the construction quality is effectively guaranteed.

Description

Bituminous mixture bin-level control device

Technical field:

The utility model relates to the pavement construction mechanical field, is specifically related to a kind of device that can regulate and control bituminous mixture feed bin height of materials.

Background technology:

In the express highway pavement construction, bituminous mixture is after coming out from facilities of mix storied building, transport the job site to through transfer charging dump truck, longer owing to the time in transportation, demixing temperature and material segregation problem in various degree can take place in bituminous mixture, and shop Shi Houhui has a strong impact on the pavement construction quality.For addressing this problem, at present, between pavement construction equipment and transfer charging dump truck, increase an asphalt mixture transfer vehicle, but existing asphalt mixture transfer vehicle medium pitch compound hopper is in the process that stirs, can not control controlling level,, make the stressed also constantly variation thereupon of agitating auger device in the hopper along with height of materials constantly changes, thereby cause that bituminous mixture stirs the appearance of non-uniform phenomenon, has influenced construction quality.

The utility model content:

Technical problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, and a kind of automaton that can detect at any time with bituminous mixture feed bin height of materials is provided.

The utility model is to solve the problems of the technologies described above by following technical scheme.It is characterized in that it is to be provided with a sensor in the compound feed bin, link to each other with controller that this controller inserts material valve and one-level discharging proportioning valve by the A/D modular converter; Described sensor is adjustable-height and the ultrasonic sensor that can do rotation, be loaded on the sensor sleeve, this sleeve with offer chute and be fixed on the slide of feed bin inside wall hinged, above sensor, but also be provided with the striker plate of backgauge.

The utility model is owing to used charge level control device, can make stirring bunker spiral spice device stressed uniform and stable, the temperature and the material homogeneity of asphalt concrete material have been improved, remedied the deficiency of original hopper, simultaneously, can close the charging motor automatically when material level arrives desired location, can operate, control the turnover material of transfer car(buggy) preferably, avoid the blindness of operating; Secondly, being provided with of sensing station can be regulated as required, can further improve the accuracy and the precision of sensor test, guaranteed construction quality effectively.

Description of drawings:

Fig. 1 concerns schematic diagram for bituminous mixture feed bin and other parts are coupled to each other;

Fig. 2 is the utility model feed bin internal construction schematic diagram;

Fig. 3 is the I place enlarged drawing of the utility model Fig. 2;

Fig. 4 is the A-A view of the utility model Fig. 3;

Fig. 5 is the B-B view of the utility model Fig. 4.

Fig. 6 is the utility model circuit diagram.

Among the figure:

1-pan feeding casing; The 2-canvas; The 3-feed bin;

4-one-level discharging casing; 5-secondary discharging casing; The 6-A/D modular converter;

The 7-controller; 8-pan feeding valve; The 9-power amplifier;

10-one-level discharging proportioning valve; The 31-bituminous mixture; 32-sensor installing sleeve;

The 33-sensor; The 34-striker plate; The 35-slide;

The 36-fixed head; 37-feed bin inside wall; The 38-adjustment screw.

The specific embodiment:

As shown in Figure 1, in pavement construction, feed bin 3 is installed on the transfer car(buggy), and feed bin 3 arrival ends link to each other with pan feeding casing 1 by canvas 2, and the port of export links to each other with one-level discharging casing 4 arrival ends, and one-level discharging casing 4 ports of export link to each other with secondary discharging casing 5 arrival ends.Bituminous mixture is delivered to stirring bunker 3 by the chain scraper in the pan feeding casing 1, finally is delivered in the hopper of asphalt paver from one-level discharging casing 4, secondary discharging casing 5 by the helical stir screeding device.Owing to height of materials in the feed bin 3 can along with whipping process constantly carry out change, this variation can cause the stressed changes of mixing plant in the feed bin 3, thereby brings the instability of quality.

As Fig. 2, shown in Figure 6, the utility model is for addressing the above problem, installing one sensor 33 on stirring bunker inside wall 37, this sensor 33 is a ultrasonic sensor, link to each other with controller 7 by A/D modular converter 6, these controller 7 models are 6ES7214-1AD21-OXBO, join with pan feeding valve 8, join by power amplifier 9 and one-level discharging proportioning valve 10 simultaneously.By sensor installation 33 in feed bin 3, can the height of materials in its feed bin 3 be detected, and feed bin 3 chargings, agitating auger speed, discharging conveyer belt are controlled by controller 7 output signals, make bituminous mixture feed bin 3 interior height of materials be in metastable state all the time thereby finally reach, with temperature and the material uniformity partly that improves bituminous concrete.

For guaranteeing sensor 33 tests accurately, reliably, the utility model sensor 33 setting height(from bottom)s can be regulated and can be rotated, as Fig. 3, Fig. 4, shown in Figure 5, it is loaded in the sensor sleeve 32, and this sleeve and slide 35 are hinged, can rotate 120 °～150 ° around pin joint in the horizontal direction as required, by being bolted on the slide 35, offer chute on the slide 35, adjustment screw 38 is passed through in this chute and is screwed in the fixed head 36, and fixed head 36 is fixed on the feed bin inside wall 37.When needing to regulate sensor 33 height, can unscrew adjustment screw 38, slide 35 is moved up and down, when adjusting to suitable position, tighten adjustment screw 38 again and get final product.

Because bituminous mixtures 31 have certain temperature in the feed bin 3, can damage sensor for preventing that bituminous mixture 31 from falling on the sensor 33, the utility model above sensor 33, but also be provided with the striker plate 34 of backgauge.

The utility model course of work: when in the feed bin 3 material 31 being housed, sensor 33 can and constantly scan feed bin 3 medium pitch compounds, 31 height detection, then detected position signalling is sent to controller 7 after by A/D modular converter 6, controller 7 is handled through data, when if the actual height value of bituminous mixtures 31 is greater than the ideal value of default transfer car(buggy) feed bin 3 height in the transfer car(buggy) feed bin 3, then controller 7 is given power amplifier 9, one-level proportion magnetic valve 10 and pan feeding valve 8 send signal, pan feeding valve 8 cuts out, the operation of pan feeding conveyer belt stops, and the discharging line speed increases; When bituminous mixture 31 actual values of transfer car(buggy) feed bin 3 and default ideal distance value near the time, open pan feeding valve 8 again, the discharging line speed is adjusted to normal speed; If actual value is less than ideal value, then pan feeding valve 8 is opened, the operation of pan feeding conveyer belt, the discharging line speed reduces, when bituminous mixture 31 actual values of transfer car(buggy) feed bin 3 and the ideal value that presets near the time, pan feeding valve 8 cuts out, and the pan feeding conveyer belt stops again, and the discharging line speed is adjusted to normal speed.

Claims

1, a kind of bituminous mixture bin-level control device, it is characterized in that it is to be provided with a sensor (33) in compound feed bin (3), link to each other with controller (7) by A/D modular converter (6), this controller inserts material valve (8) and one-level discharging proportioning valve (10).

2,, it is characterized in that described sensor (33) is a ultrasonic sensor according to the described bituminous mixture bin-level of claims control device.

3,, it is characterized in that described sensor (33) is adjustable-height and the sensor that can do rotation, is loaded on the feed bin inside wall (37) according to claims 1 or 2 described bituminous mixture bin-level control device.

4, according to claims 3 described bituminous mixture bin-level control device, it is characterized in that described sensor (33) is loaded on the sensor sleeve (32), this sleeve with offer chute and be fixed on the slide (35) of feed bin inside wall (37) hinged.

5, according to claims 3 described bituminous mixture bin-level control device, it is characterized in that described sensor (33) but the top is provided with the striker plate (34) of backgauge.