CN212374445U - Semi-portal scraper reclaimer angle control device - Google Patents
Semi-portal scraper reclaimer angle control device Download PDFInfo
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- CN212374445U CN212374445U CN202020929028.4U CN202020929028U CN212374445U CN 212374445 U CN212374445 U CN 212374445U CN 202020929028 U CN202020929028 U CN 202020929028U CN 212374445 U CN212374445 U CN 212374445U
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Abstract
The utility model discloses an angle control device of a semi-portal scraper reclaimer, the semi-portal scraper reclaimer comprises a semi-portal and a reclaiming arm, the low end of the semi-portal is erected on a first beam, the high end is erected on a second beam, the reclaiming arm is provided with a plurality of scrapers, the tail end of the reclaiming arm is hinged on the first beam, and the reclaiming arm swings around a hinged point through a lifting mechanism, the lifting mechanism comprises a winch, a lifting arm and a support frame, the winch is arranged on the first beam, the lifting arm is hinged on the reclaiming arm, the lifting arm is provided with a first pulley, the support frame is arranged on the semi-portal, the support frame is provided with a second pulley, a steel wire rope wound on the winch bypasses the second pulley and then bypasses the first pulley, the last rope end is fixed on the support frame or the second pulley, the winch is driven by a speed reducing motor, a rotary encoder is arranged on a bearing of the speed reducing motor, the counting value of the rotary encoder is linearly related to the current angle value of the material taking arm.
Description
Technical Field
The utility model relates to a technical field is carried to the material, especially relates to a semi-portal scraper blade reclaimer angle control device.
Background
For a scraper type reclaimer, materials are scraped and conveyed by a scraper prick feeding pile on a material taking arm, however, the setting angle of the material taking arm is an important factor, and if the scraper pricks the materials too deeply, the frequency converter of a scraper motor is overloaded; the material is too shallow to prick into by the scraper blade, and the material efficiency of getting is influenced to the material of scraping too little. When the material taking machine takes materials, the scraper plate needs to prick the materials to a certain depth, the materials are scraped to the belt along with the operation of the chain drive and the walking drive, and the depth corresponds to the angle of descending required for taking materials on each layer of the material taking arm. In the traditional control mode, after the materials on one layer are scraped and taken, the materials are still taken at the angle on the next layer, along with the descending of the materials, the contact area between the scraper and the materials is increased, the amount of the scraped materials is increased, the current of a scraper motor is gradually increased until overcurrent protection is achieved, and meanwhile, the problems that the load of a belt is increased, the materials easily fall down the belt and the like are caused by excessive materials, so that the stable operation of the material taking machine is influenced.
SUMMERY OF THE UTILITY MODEL
Based on it is above, the utility model provides a semi portal scraper blade reclaimer angle control device optimizes current reclaimer, realizes that the material taking arm pricks the degree of depth of advancing the material according to material reserves adjustment scraper blade to the material volume that the messenger scraped and got is appropriate, guarantees reclaimer steady operation.
In order to achieve the purpose, the utility model adopts the following technical proposal:
an angle control device of a semi-portal scraper reclaimer comprises a semi-portal and a material taking arm, wherein the low end of the semi-portal is erected on a first beam, the high end is erected on a second beam, a bin for containing a material pile is arranged between the first beam and the second beam, the material taking arm is provided with a plurality of scrapers, the tail end of the material taking arm is provided with a discharge chute, the scrapers scrape materials from the material pile and push the materials into the discharge chute, the tail end of the material taking arm is hinged on the first beam and swings around a hinged point through a lifting mechanism, the lifting mechanism comprises a winch, a lifting arm and a support frame, the winch is arranged on the first beam, the lifting arm is hinged on the material taking arm, the lifting arm is provided with a first pulley, the support frame is arranged on the semi-portal and is positioned above the material pile, the support frame is provided with a second pulley, a steel wire rope wound on the winch winds around the second pulley, and then the rope passes by the first pulley, the final rope end is fixed on the support frame or the second pulley, the winch is driven by a speed reducing motor, a bearing of the speed reducing motor is provided with a rotary encoder, and the counting value of the rotary encoder is linearly related to the current angle value of the material taking arm.
Wherein, be provided with tension sensor on the second pulley, tension sensor and gear motor signal connection.
Wherein, the linear relation between the angle value of the material taking arm and the counting value of the rotary encoder is
Wherein y is the current angle value of the take-off arm, x is the corresponding count value of the rotary encoder, y1The angle value y of the take-off arm at the lowest position2The angle value, x, of the material-taking arm at the highest position1The count value, x, of the encoder at the lowest bit2The count value of the encoder at the highest bit.
Wherein the angle range of the material taking arm and the horizontal plane is-5-40 degrees.
Wherein, still be provided with the stopper on the first roof beam, the brake end of stopper acts on the hoist engine, avoids the arm swift current hook of getting the material.
Wherein the bottom of the silo slopes towards the second beam.
Wherein, all be provided with linear orbit on first roof beam, the second roof beam, the low level end and the high level end of semi-portal are established on corresponding linear orbit of carriage respectively, and the low level end is by three driving motor, high level end by two driving motor synchronous drive.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, the count value that the encoder corresponds can be calculated according to the required angle of the arm of getting to semi portal scraper blade reclaimer angle control device, and then the action of control hoist engine to can be according to the angle of the altitude mixture control arm of material pile, the degree of depth that the arm of controlling promptly got stretches into in the material pile avoids scraping and gets the material too much and cause scraper belt load too big, motor overcurrent, also avoid scraping and get the material too little and cause the energy extravagant, and efficiency is influenced, ensures that the reclaimer is quick, steady operation.
Drawings
Fig. 1 is the embodiment of the utility model provides a semi-portal scraper reclaimer angle control device's structure schematic diagram.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Please refer to fig. 1, the present embodiment provides an angle control device for a semi-portal scraper reclaimer, the semi-portal scraper reclaimer includes a semi-portal 1 and a reclaimer arm 2, a low end of the semi-portal 1 is erected on a first beam 3, a high end is erected on a second beam 4, further, linear tracks are disposed on the first beam 3 and the second beam 4, the low end and the high end of the semi-portal 1 are respectively erected on the corresponding linear tracks in a sliding manner, and the low end is driven by three driving motors and the high end is driven by two driving motors synchronously, so as to meet the requirement of translation of the semi-portal 1.
For holding feed bin 5 of stockpile 6 between first roof beam 3 and the second roof beam 4, and the bottom of feed bin 5 to the slope of second roof beam 4, be provided with a plurality of scraper blade 7 on the arm 2 of getting material, the tail end of getting material arm 2 is provided with blowpit 8, and scraper blade 7 scrapes the material from stockpile 6 to carry the material to in the blowpit 8.
The tail end of the material taking arm 2 is hinged to the first beam 3, the material taking arm 2 swings around a hinged point through the lifting mechanism, the lifting mechanism comprises a winch 9, a lifting arm 10 and a supporting frame 11, the winch 9 is arranged on the first beam 3, the lifting arm 10 is hinged to the material taking arm 2, a first pulley 12 is arranged on the lifting arm 10, the supporting frame 11 is arranged on the semi-portal frame 1 and located above the material pile 6, a second pulley 13 is arranged on the supporting frame 11, a steel wire rope 14 wound on the winch 9 winds around the second pulley 13 and then winds around the first pulley 12, and the last rope end is fixed on the supporting frame 11 or the second pulley 13.
The hoist 9 is driven by a speed reducing motor, a rotary encoder is arranged on a bearing of the speed reducing motor, and the counting value of the rotary encoder is linearly related to the current angle value of the material taking arm 2, namely
Wherein y is the angle value of the material taking arm, x is the counting value of the rotary encoder, y1The angle value y of the take-off arm 2 at the lowest position2The angle value, x, of the material-taking arm 2 at the highest position1The count value, x, of the encoder at the lowest bit2The count value of the encoder at the highest bit.
Here, the angle range of the actual material taking arm 2 and the horizontal plane is-5 to 40 degrees, and the counting value x of the encoder is preset when the material taking arm 2 is at the lowest position1When the material taking arm 2 is lifted to the highest position, the counting value x of the encoder at the moment can be known2Therefore, the proportional relation between the angle value of the material taking arm and the counting value of the encoder can be known. Therefore, when the material taking arm 2 ascends and descends, the current angle value of the material taking arm 2 can be calculated according to the counting value of the rotary encoder, so that the angle displacement value is quantized, and the movement of the material taking arm 2 can be controlled more accurately.
And a tension sensor is arranged on the second pulley 13, the tension sensor is in signal connection with the speed reducing motor to play a role in monitoring and alarming, and when a detection value is abnormal, the alarm and the machine is stopped. The ascending and descending of the material taking arm 2 are controlled by a winding and unwinding steel wire rope 14 of a winding engine 9, and the speed of a driving motor of the winding engine 9 is adjustable, so that the ascending and descending speed of the material taking arm 2 is adjusted.
The first beam 3 is also provided with a brake 15, and the braking end of the brake 15 acts on the winch 9 to prevent the material taking arm 2 from slipping the hook. When the material taking arm 2 descends from a high limit, the brake 15 is opened, the winch 9 runs at a high speed, the material taking arm 2 quickly approaches the material, when the material taking arm descends to a certain value, the winch 9 runs at a low speed, the driving of the winch 9 is stopped when a preset angle is reached, and the brake 15 is closed.
To sum up, foretell semi portal scraper blade reclaimer angle control device can calculate the count value that the encoder corresponds according to the required angle of reclaimer arm, and then the action of control hoist engine, thereby can be according to the angle of the altitude mixture control reclaimer arm of material pile, control the degree of depth that the reclaimer arm stretches into in the material pile promptly, it is too big to avoid scraping to get the material and cause scraper belt load, motor overcurrent, also avoid scraping to get the material and lead to the fact the energy extravagant too little, influence efficiency, ensure that the reclaimer is quick, steady operation.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. An angle control device of a semi-portal scraper reclaimer, the semi-portal scraper reclaimer comprises a semi-portal and a material taking arm, the low end of the semi-portal is erected on a first beam, the high end is erected on a second beam, a bin for containing a material pile is arranged between the first beam and the second beam, the material taking arm is provided with a plurality of scrapers, the tail end of the material taking arm is provided with a discharge chute, the scrapers scrape materials from the material pile and push the materials to the discharge chute, the angle control device is characterized in that the tail end of the material taking arm is hinged on the first beam, the material taking arm swings around a hinged joint through a lifting mechanism, the lifting mechanism comprises a winch, a lifting arm and a support frame, the winch is arranged on the first beam, the lifting arm is hinged on the material taking arm, the lifting arm is provided with a first pulley, the support frame is arranged on the semi-portal and is positioned above the material pile, the support frame is provided with a second pulley, a steel wire rope wound on the winch bypasses the second pulley and the first pulley, the last rope end is fixed on the support frame or the second pulley, the winch is driven by the speed reduction motor, a rotary encoder is arranged on a bearing of the speed reduction motor, and the counting value of the rotary encoder is linearly related to the current angle value of the material taking arm.
2. The angle control device of the semi-portal scraper reclaimer of claim 1, characterized in that: and a tension sensor is arranged on the second pulley and is in signal connection with the speed reducing motor.
3. The angle control device of the semi-portal scraper reclaimer of claim 1, characterized in that: the linear relation between the angle value of the material taking arm and the counting value of the rotary encoder is
Wherein y is the current angle value of the take-off arm, x is the corresponding count value of the rotary encoder, y1The angle value y of the take-off arm at the lowest position2The angle value, x, of the material-taking arm at the highest position1The count value, x, of the encoder at the lowest bit2The count value of the encoder at the highest bit.
4. The angle control device of the semi-portal scraper reclaimer of claim 3, characterized in that: the angle range of the material taking arm and the horizontal plane is-5-40 degrees.
5. The angle control device of the semi-portal scraper reclaimer of claim 1, characterized in that: the first beam is also provided with a brake, and the braking end of the brake acts on the winch to avoid the material taking arm from slipping off the hook.
6. The angle control device of the semi-portal scraper reclaimer of claim 1, characterized in that: the bottom of the bin is inclined towards the second beam.
7. The angle control device of the semi-portal scraper reclaimer of claim 1, characterized in that: all be provided with linear orbit on first roof beam, the second roof beam, the low level end and the high level end of semi portal are established on corresponding linear orbit respectively the carriage, and the low level end is by three driving motor, high level end by two driving motor synchronous drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020929028.4U CN212374445U (en) | 2020-05-27 | 2020-05-27 | Semi-portal scraper reclaimer angle control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020929028.4U CN212374445U (en) | 2020-05-27 | 2020-05-27 | Semi-portal scraper reclaimer angle control device |
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| CN212374445U true CN212374445U (en) | 2021-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620194A (en) * | 2021-08-23 | 2021-11-09 | 广西汉华建筑设计有限公司 | Lifting equipment |
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2020
- 2020-05-27 CN CN202020929028.4U patent/CN212374445U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113620194A (en) * | 2021-08-23 | 2021-11-09 | 广西汉华建筑设计有限公司 | Lifting equipment |
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