CN109018926A - A kind of material-clearing device - Google Patents

Abstract

The present invention relates to clear material technical fields, and in particular to a kind of material-clearing device, comprising: for receiving the bunker platform of material；Blade structure is set on the bunker platform, is had and is moved back and forth on the bunker platform under the action of the driving mechanism, the material is pushed to the clear material end in predetermined position；Buffer structure is set between the blade structure and the driving mechanism, when the driving mechanism drives the blade structure to move back and forth, is applied to the blade structure one and is being encountered stroke obstruction active force contrary with its deformation when deformation occurs.Material-clearing device provided by the invention can clear up automatically the material scattered, structure it is simple, convenient for operating, occupying little space, it is easy for installation, and can be avoided scraper plate retardance when scraper plate encounters larger harder material block and avoid push rod stuck.

Description

a cleaning device

technical field

The invention relates to the technical field of material cleaning, in particular to a material cleaning device.

Background technique

During the conveying process of the belt conveyor, the unloading roller at the head is often subject to the problem of material scattering due to the site working conditions and production conditions. The falling material accumulates at the bottom of the head roller support, and long-term accumulation and friction with the belt will cause fires, etc. question. Due to the relatively narrow space at the bottom of the head bracket, the blanking is not convenient for manual cleaning, and it is easy to cause dust to fly and form secondary pollution; if the head discharge and the head funnel are closed together, dust pollution can be avoided, but it cannot be solved fundamentally The problem of blanking accumulation. How to clean the blanking problem concisely and efficiently is an urgent problem to be solved by belt conveyor operation and maintenance personnel.

At present, manual cleaning or water washing is usually used for the treatment of piled materials. This method is time-consuming and laborious. The space of the pile is narrow, and manual cleaning is inconvenient. In addition, dust is easily formed during the cleaning process, causing secondary pollution and endangering human health. Secondly, if the water flushing treatment method is adopted, the sewage is not easy to collect, and the sludge will pollute the working and production environment, and for a large amount of blanking, the accumulated water flushing treatment method cannot fundamentally solve the problem.

For this reason, Chinese patent document CN202880404U provides a kind of belt conveyor automatic cleaning device, comprises two electric push rods, a rail, a slideway, scraper, scraper main shaft, rotating sleeve, two connecting plates and iron stopper; Among them, the track is fixed on the ground at the bottom of the frame of the belt conveyor, the slideway is on the track through a row of wheels, and two electric push rods are respectively installed on both sides of the slideway. The base of the electric push rod is respectively fixed on the track, the main shaft of the scraper is fixed on the slideway, the rotary sleeve is installed on the main shaft of the scraper, the scraper is fixed on the rotary sleeve, there is an iron stopper on one side of the scraper, and the iron stopper is installed at the bottom of the slide. Although the above-mentioned patent documents can completely eliminate manual material cleaning, the above-mentioned technical scheme has a complex structure, and when the scraper encounters a larger and harder material block, it is easy to block and the push rod is easy to get stuck.

Contents of the invention

Therefore, the technical problem to be solved by the present invention is to overcome the complex structure of the cleaning device of the belt conveyor in the prior art, and it is easy to block the scraper after encountering a larger and harder material block in the cleaning process. The technical defect that makes the push rod stuck, thus providing a kind of material that can automatically clean up the scattered material, simple structure, easy to operate, small space occupation, easy to install, and when the scraper encounters a larger and harder material block, it can avoid scraping Blocking of the plate and cleaning device to avoid sticking of the push rod.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

A cleaning device, comprising:

Silo platforms for receiving materials;

The scraper structure is arranged on the silo platform, and has a reciprocating movement on the silo platform under the action of the driving mechanism to push the material to a cleaning end at a predetermined position;

The buffer structure is arranged between the scraper structure and the driving mechanism, and when the driving mechanism drives the scraper structure to reciprocate, it applies a force to the scraper structure when it encounters stroke obstruction and deforms. Forces acting in opposite directions of deformation.

The buffer structure is a biasing member that simultaneously connects the scraper structure and the force output end of the drive mechanism.

The biasing member is a spring whose deformation direction is parallel to the moving direction of the scraper structure.

The scraper structure includes a first scraper and a second scraper connected to each other, and the forward projection of the first scraper and the second scraper on the bin platform is V-shaped.

The first scraper is connected to the second scraper through a connecting plate, the connecting plate is arranged perpendicular to the moving direction of the scraper structure, and one end of the buffer structure is connected to the connecting plate.

The driving mechanism is an electro-hydraulic push rod. The electro-hydraulic push rod includes a push rod and a motor for driving the push rod to reciprocate. The push rod is connected to the other end of the buffer structure.

A U-shaped groove is also formed at the connecting end of the push rod and the buffer structure, the buffer structure is placed in the U-shaped groove, and the open end of the U-shaped groove is connected to the scraper structure. Swipe to connect.

It also includes a guide structure, the guide structure is connected with the push rod, so that the push rod moves along the guide direction of the guide structure, and the guide direction of the guide structure is consistent with the movement direction of the scraper structure.

The guide structure includes a pair of guide rails arranged on both sides of the push rod axis and guide wheels adapted to the guide rails. The bracket is connected with the push rod.

The guide rail is provided with two travel switches respectively arranged on both sides of the guide wheel. When the guide wheel reciprocates along the guide rail, the travel switch is triggered to send a signal to stop the motor.

Compared with the prior art, the technical solution of the present invention has the following advantages:

1. The material cleaning device provided by the present invention includes: a silo platform for receiving materials; a scraper structure, which is arranged on the silo platform, and can reciprocate on the silo platform under the action of a driving mechanism. , so as to push the material to the cleaning end of the predetermined position; the buffer structure is arranged between the scraper structure and the driving mechanism, and when the driving mechanism drives the scraper structure to reciprocate, it is applied to The scraper structure has an acting force opposite to its deformation direction when encountering stroke obstruction and deformation. This design has a simple structure, is easy to control and operate, and is suitable for use with a belt conveyor to automatically clean up materials scattered from the belt conveyor; and this design occupies a small space and is easy to install, and is suitable for installation on a belt conveyor. In the narrow space at the bottom of the conveyor head bracket, the accumulated materials scattered from the belt are cleaned in time, and the materials are collected and pushed to the next conveying link, thus effectively solving the cleaning problem of unloading and accumulated materials at the conveyor head; at the same time, when scraping When the board encounters a larger and harder block of material, the design of the buffer structure can avoid the risk of the scraper being blocked and the push rod stuck, thereby improving the stability of the device structure.

2. In the cleaning device provided by the present invention, the buffer structure is a biasing member that simultaneously connects the scraper structure and the force output end of the driving mechanism. The biasing member is a spring whose deformation direction is parallel to the moving direction of the scraper structure. The design of the spring is simple and easy to install.

3. The cleaning device provided by the present invention, the scraper structure includes a first scraper and a second scraper connected to each other, and the first scraper and the second scraper are on the bin platform The forward projection of is V-shaped. The design of the V-shaped scraper facilitates the pushing of materials, and the force of the scraper structure is more balanced when pushing materials. Even when there are more materials and greater resistance, the scraper structure will not shrink laterally, avoiding shrinkage. The risk that the falling material at the gaps at both ends of the scraper structure cannot be cleaned, thus ensuring the cleaning efficiency and cleaning effect of the scraper structure.

4. In the cleaning device provided by the present invention, the first scraper is connected to the second scraper through a connecting plate, the connecting plate is arranged perpendicular to the moving direction of the scraper structure, and the buffer structure One end is connected with the connecting plate. This design avoids the direct connection between the first scraper and the second scraper, thus causing a large amount of stress concentration at the connection position, reducing the damage rate of the scraper structure, and improving the service life of the cleaning device. At the same time, the connection plate The design and spring installation effect is better.

5. The cleaning device provided by the present invention, the driving mechanism is an electro-hydraulic push rod, the electro-hydraulic push rod includes a push rod and a motor for driving the push rod to reciprocate, and the push rod is connected to the The other end of the buffer structure. The electro-hydraulic push rod has overload protection ability, will not damage the motor and parts, has a wide range of driving force, consumes less power, is sensitive in action, runs smoothly, can effectively buffer external impact force, accurate stroke control, and is easy to install and maintain. advantage.

6. In the cleaning device provided by the present invention, a U-shaped trough is also formed at the connecting end of the push rod and the buffer structure, the buffer structure is placed in the U-shaped trough, and the U-shaped trough The open end of the body is slidably connected with the scraper structure. The buffer structure is arranged in the U-shaped groove body, which avoids the lateral movement and falling off of the buffer structure, improves the buffer efficiency of the buffer structure and makes the buffer effect of the buffer structure better, and further improves the service life of the cleaning device.

7. The cleaning device provided by the present invention also includes a guide structure, the guide structure is connected with the push rod so that the push rod moves along the guide direction of the guide structure, and the guide direction of the guide structure is the same as The moving directions of the scraper structures are consistent. The guide structure includes a pair of guide rails arranged on both sides of the push rod axis and guide wheels adapted to the guide rails. The bracket is connected with the push rod. The guiding structure is formed jointly by the guide rail and the guide wheel, the structure is simple and common, and the processing cost of the cleaning device is reduced.

8. In the cleaning device provided by the present invention, the guide rail is provided with two travel switches respectively arranged on both sides of the guide wheel. When the guide wheel reciprocates along the guide rail, the travel switch is triggered to send out the The signal that the motor stops working. The travel switch is used to send a signal to control the operation of the motor, which makes the reciprocating position of the scraper structure more accurate, and also makes the automatic control of the cleaning device possible, increasing the working accuracy of the cleaning device.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Fig. 1 is the structural representation of cleaning device of the present invention;

Fig. 2 is an enlarged view of area A of the cleaning device shown in Fig. 1 .

Explanation of reference signs:

1-silo platform; 2-scraper structure; 3-guide wheel; 4-electrohydraulic push rod; 5-travel switch; 6-guide rail; 7-spring; 8-U-shaped tank; 9-connecting plate.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

As shown in Figure 1-2, it is a specific implementation of the material cleaning device involved in the present invention. In this embodiment, the material cleaning device is arranged in the limited space at the bottom of the roller bracket of the conveyor head. In order to clean up the accumulated materials scattered on the conveyor belt in time, the material cleaning device also uses PLC to control the driving mechanism to ensure the normal operation of the device. The support and the box are provided with: a silo platform 1 for receiving materials, a scraper structure 2, a buffer structure, a driving mechanism, a travel switch 5 and a guide structure.

In this embodiment, the scraper structure 2 is arranged on the silo platform 1, and has a cleaning mechanism that reciprocates on the silo platform 1 under the action of the driving mechanism to push the material to a predetermined position. The predetermined position may be a funnel set at the head of the conveyor, or other downstream conveying links. Further, the scraper structure 2 includes a first scraper and a second scraper connected to each other, and the forward projections of the first scraper and the second scraper on the bin platform 1 are in the shape of V-shape. Further, the first scraper is connected to the second scraper through a connecting plate 9, the connecting plate 9 is arranged perpendicular to the moving direction of the scraper structure 2, and one end of the buffer structure is connected to the The connecting plate 9 is connected.

In this embodiment, the driving mechanism is an electro-hydraulic push rod 4, the electro-hydraulic push rod 4 includes a push rod and a motor for driving the push rod to reciprocate, and the push rod is connected to the buffer structure the other end of the When the electro-hydraulic push rod is working, when the external force on the push rod exceeds the set output force or the motor is still rotating when the piston reaches the end point, the oil pressure in the road increases to the set limit, and the relief valve overflows quickly and accurately, realizing Overload protection, although the motor is rotating, it will not burn out. At the same time, the electrohydraulic push rod has overload protection ability, will not damage the motor and parts, has a wide range of driving force, low power consumption, sensitive action, stable operation, can effectively buffer external impact force, accurate stroke control, and is easy to install and maintain. Etc.

In this embodiment, the buffer structure is arranged between the scraper structure 2 and the driving mechanism, and when the driving mechanism drives the scraper structure 2 to reciprocate, a buffer structure is applied to the scraper structure 2 The force acting in the opposite direction to the deformation when it encounters stroke resistance and deformation. Further, the buffer structure is a biasing member that simultaneously connects the scraper structure 2 and the force output end of the driving mechanism. Further, the biasing member is a spring 7 whose deformation direction is parallel to the moving direction of the scraper structure 2 , and the spring 7 is suitable for exerting a force on the scraper structure 2 that is different from the moving direction of the scraper structure 2 . With the same force, one end of the spring 7 is connected to the push rod, and the other end is connected to the connecting plate 9 . The design of the buffer structure avoids the stuck condition during the operation of the equipment, and effectively solves the problem of blanking and accumulation.

Further, a U-shaped groove body 8 is also formed at the connecting end of the push rod and the buffer structure, the buffer structure is placed in the U-shaped groove body 8, and the open end of the U-shaped groove body 8 It is slidingly connected with the scraper structure 2. The scraper structure 2 is formed with a through hole adapted to the two side walls of the U-shaped groove body 8, and the two side walls of the U-shaped groove body 8 are arranged in the through hole and are driven Sliding relative to the scraper structure 2 under the action of the mechanism.

In this embodiment, the guide structure is connected with the push rod so that the push rod moves along the guiding direction of the guiding structure, and the guiding direction of the guiding structure is in line with the moving direction of the scraper structure 2 unanimous. Further, the guide structure includes a pair of guide rails 6 arranged on both sides of the push rod axis and guide wheels 3 adapted to the guide rails 6, and the guide rails 6 are separately arranged on the lengthwise direction of the scraper structure 2. At both ends, the guide wheel 3 is connected with the push rod through a bracket.

In this embodiment, the travel switch 5 is arranged on the guide rail 6, there are two travel switches 5 and they are respectively arranged on both sides of the guide wheel 3, and the guide wheel 3 reciprocates along the guide rail 6 , trigger the travel switch 5 to send a signal to stop the motor.

The material cleaning device of this embodiment utilizes the working principle of the electrohydraulic push rod to make the push rod reciprocate under the drive of the motor, and uses PLC to control the motor at the same time. When the sensor unit of the PLC detects the threshold range of the accumulated material, the PLC The control unit starts the motor to run, drives the push rod to move, and then drives the scraper structure 2 to move, so as to clean up the materials scattered on the silo platform 1, and the buffer structure added during the process prevents the equipment from running. The stuck working condition in the system effectively solves the problem of blanking accumulation. The material cleaning device replaces manual cleaning of blanking, thereby reducing manual labor and labor intensity, and at the same time reducing the risk of incomplete manual cleaning of blanking. potential safety hazards, and the cleaning device adopts a combination of program control and local control, and regularly cleans up the accumulated blanking according to the blanking situation, thereby realizing automatic control, and the cleaning device of this embodiment has the advantages of convenient control, structural Simple, easy to operate, small footprint and easy installation.

As an alternative implementation manner, the guide structure may further include a slider and a guide rod adapted to the slider.

As an alternative implementation, the drive mechanism may also be a hydraulic device or an electric push rod. When the driving mechanism is a hydraulic device, it includes a hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected to the scraper structure 2 to drive the movement of the scraper structure 2; when the driving mechanism is an electric push rod, the push rod of the electric push rod The rod is connected with the scraper structure 2 for driving the scraper structure 2 to move.

As an alternative embodiment, the driving structure may also include a lead screw nut connected with the buffer structure, a lead screw screw threaded with the lead screw nut, and a lead screw screw connected with the lead screw for driving the lead screw. A motor that rotates the lever and a screw and a guide structure connected with the screw nut.

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or changes derived therefrom are still within the scope of protection of the present invention.

Claims (10)

1. A cleaning device, characterized in that, comprising: A silo platform (1) for receiving materials; The scraper structure (2) is arranged on the silo platform (1), and has a cleaning mechanism that reciprocates on the silo platform (1) under the action of the driving mechanism to push the material to a predetermined position. feed end; The buffer structure is arranged between the scraper structure (2) and the driving mechanism, and when the driving mechanism drives the scraper structure (2) to reciprocate, a The force that acts in the opposite direction of deformation when it encounters a stroke resistance. 2. The material cleaning device according to claim 1, characterized in that, the buffer structure is a biasing member that simultaneously connects the scraper structure (2) and the output end of the force of the driving mechanism. 3. The cleaning device according to claim 2, characterized in that the biasing member is a spring (7) whose deformation direction is parallel to the moving direction of the scraper structure (2). 4. The cleaning device according to any one of claims 1-3, characterized in that, the scraper structure (2) includes a first scraper and a second scraper connected to each other, and the first scraper The forward projection of the plate and the second scraper on the silo platform (1) is V-shaped. 5. The cleaning device according to claim 4, characterized in that, the first scraper is connected to the second scraper through a connecting plate (9), and the connecting plate (9) is connected to the scraper The moving direction of the plate structure (2) is set vertically, and one end of the buffer structure is connected with the connecting plate (9). 6. The cleaning device according to claim 5, characterized in that, the driving mechanism is an electro-hydraulic push rod (4), and the electro-hydraulic push rod (4) includes a push rod and is used to drive the push rod A motor for reciprocating motion, the push rod is connected to the other end of the buffer structure. 7. The cleaning device according to claim 6, characterized in that, a U-shaped groove (8) is also formed at the connecting end of the push rod and the buffer structure, and the buffer structure is placed in the U In the groove body (8), the open end of the U-shaped groove body (8) is slidingly connected with the scraper structure (2). 8. The cleaning device according to claim 6, further comprising a guiding structure, the guiding structure is connected with the push rod so that the pushing rod moves along the guiding direction of the guiding structure, so The guiding direction of the guiding structure is consistent with the moving direction of the scraper structure (2). 9. The cleaning device according to claim 8, characterized in that, the guide structure comprises a pair of guide rails (6) arranged on both sides of the push rod axis and a guide rail (6) adapted to the guide rails (6). Wheels, the guide rails (6) are respectively arranged at both ends of the scraper structure (2) in the length direction, and the guide wheels are connected with the push rods through brackets. 10. The cleaning device according to claim 9, characterized in that, the guide rail (6) is provided with two travel switches (5) which are respectively arranged on both sides of the guide wheel (3), and the guide wheel (3) When reciprocating along the guide rail (6), trigger the travel switch (5) to send a signal to stop the motor.