Large-dip-angle belt conveyor bottom plate cleaning device

Abstract

The large-dip-angle belt conveyor bottom plate cleaning device comprises a driving mechanism and a cleaning mechanism, the driving mechanism is used for driving the cleaning mechanism to move from the starting end to the tail end of a bottom plate, and a first collecting hopper is arranged at the tail end of the bottom plate; the sweeping mechanism comprises a walking trolley, and a scraping plate is installed at the front end of the walking trolley. The driving mechanism drives the walking trolley to move from the starting end to the tail end of the bottom plate, the scraping plate at the front end of the walking trolley is used for scraping materials accumulated on the bottom plate to the first collecting hopper at the tail end, and therefore it is avoided that too much materials are accumulated on the bottom plate, and normal operation of the belt conveyor is affected; manual material cleaning is not needed, working efficiency is high, and potential safety hazards do not exist.

Description

Technical Field

[0001] The invention relates to the technical field of belt conveyor cleaning, in particular to a bottom plate cleaning device for a belt conveyor with a large inclination angle. Background Art

[0002] Belt conveyor is a friction-driven machine that transports materials in a continuous manner. It can form a material conveying process from the initial feeding point to the final unloading point on a certain conveying line. It is suitable for conveying powdery, granular, small-block low-abrasive materials and bagged materials.

[0003] When the conveying material is sticky powder or granules, the material is easy to stick to the belt and enter the return section of the belt. Under the friction of the scraper cleaner and the return roller, the material will fall to the bottom plate of the belt conveyor and accumulate. If the accumulated material on the bottom plate is not cleaned regularly, it will affect the operating condition of the belt conveyor.

[0004] At present, the materials accumulated on the bottom plate of the large-angle belt conveyor (angle greater than 30°) are generally cleaned manually, which not only has low work efficiency and high labor intensity, but also has certain safety hazards. Summary of the invention

[0005] The present invention provides a bottom plate cleaning device for a high-angle belt conveyor, which solves the problems of low work efficiency, high labor intensity, and certain safety hazards in the prior art of manually cleaning materials accumulated on the bottom plate.

[0006] The technical solution of the present invention is achieved in this way:

[0007] The present invention provides a bottom plate cleaning device for a high-angle belt conveyor, comprising a driving mechanism and a cleaning mechanism, wherein the driving mechanism is used to drive the cleaning mechanism to move along the starting end to the end end of the bottom plate, and a first collecting hopper is provided at the end of the bottom plate; the cleaning mechanism comprises a walking trolley, and a scraper is installed at the front end of the walking trolley.

[0008] The present invention drives the walking trolley to move along the starting end to the end of the bottom plate through a driving mechanism, and uses the scraper at the front end of the walking trolley to scrape the materials accumulated on the bottom plate to the first collecting hopper at the end, thereby avoiding excessive accumulation of materials on the bottom plate to affect the normal operation of the belt conveyor; there is no need to manually clean the materials, the work efficiency is high and there is no safety hazard.

[0009] Specifically, the driving mechanism includes a first drum, a second drum, a wire rope and a driving component, the two ends of the transmission shaft of the first drum are fixed to the end of the bottom plate through a bearing seat, the two ends of the transmission shaft of the second drum are fixed to the beginning of the bottom plate through a bearing seat, the first drum and the second drum are connected through a wire rope transmission, the wire rope between the first drum and the second drum is parallel to the bottom plate and the return belt of the belt conveyor, the wire rope is fixedly connected to the walking trolley, and the output end of the driving component is connected to the transmission shaft of the first drum or the second drum through a coupling. The first drum or the second drum is driven to rotate by the driving component, thereby driving the wire rope to move back and forth along the bottom plate, driving the walking trolley to move along the bottom plate, thereby scraping off the materials accumulated on the bottom plate.

[0010] Furthermore, connection points are provided at both the front and rear ends of the top of the traveling trolley for fixing and connecting the steel wire rope.

[0011] Furthermore, guide assemblies are installed at the beginning and end of the base plate to guide the wire rope. The wire rope between the two guide assemblies and the wire rope between the two connection points are in a straight line. The purpose of this design is to ensure that the traction force of the wire rope on the walking trolley always coincides with the moving direction of the walking trolley, thereby avoiding the walking trolley from being subjected to the lateral tension of the wire rope.

[0012] Furthermore, the guide assembly includes two guide wheels, the two guide wheels are respectively located on both sides of the wire rope, and the wire rope passes through a gap between the two guide wheels.

[0013] Specifically, the driving component includes a motor and a reducer.

[0014] Furthermore, a counterweight block is installed inside the walking trolley. On the one hand, the counterweight block can make use of its own gravity to drive the walking trolley to move along the starting end to the end of the bottom plate, thereby saving energy consumption of the driving mechanism; on the other hand, the counterweight block can ensure that the bottom end of the scraper at the front end of the walking trolley is always in contact with the bottom plate during the walking process, thereby improving the cleaning effect.

[0015] Preferably, the top end of the scraper is hinged to the top of the front end of the walking trolley, and when the scraper is perpendicular to the bottom plate, the bottom end of the scraper abuts against the bottom plate; the advantage of such a design is that it prevents the scraper from scraping the material on the bottom plate to the beginning of the bottom plate when the walking trolley moves from the end of the bottom plate to the beginning of the bottom plate.

[0016] Preferably, a second collecting hopper is provided in the middle section of the bottom plate, and a discharge pipe is connected to the bottom of the second collecting hopper. Since the bottom plate is relatively long, the load on the scraper is relatively large when scraping along the beginning to the end of the bottom plate. By setting the second collecting hopper in the middle section of the bottom plate, the load on the scraper can be effectively reduced.

[0017] Furthermore, a vibrator is installed on the outer wall of the first collecting hopper and the second collecting hopper, and by controlling the vibrator to work intermittently, the blockage of the first collecting hopper, the second collecting hopper and the discharge pipe can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the arrangement structure of a large-angle belt conveyor bottom plate cleaning device above the bottom plate of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a bottom plate cleaning device for a large-angle belt conveyor according to the present invention;

[0021] Figure 3 This is a schematic diagram of the connection structure between the walking trolley and the wire rope in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the state of the scraper when the traveling vehicle performs a cleaning operation in an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the state of the scraper when the traveling trolley performs the retracting operation in the embodiment of the present invention;

[0024] In the figure: 1. bottom plate; 2. first collecting hopper; 3. walking trolley; 4. scraper; 5. return belt; 6. first drum; 7. second drum; 8. wire rope; 9. bearing seat; 10. coupling; 11. connection point; 12. guide wheel; 13. motor; 14. reducer; 15. counterweight; 16. second collecting hopper; 17. discharge pipe; 18. vibrator. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1An embodiment of the present invention provides a bottom plate cleaning device for a high-angle belt conveyor, comprising a driving mechanism and a cleaning mechanism, wherein the driving mechanism is used to drive the cleaning mechanism to move along the starting end to the end of a bottom plate 1, and a first collecting hopper 2 is provided at the end of the bottom plate 1; the cleaning mechanism comprises a walking trolley 3, and a scraper 4 is installed at the front end of the walking trolley 3.

[0027] The present invention drives the traveling trolley 3 to move along the starting end to the end of the base plate 1 through a driving mechanism, and utilizes the scraper 4 at the front end of the traveling trolley 3 to scrape the materials accumulated on the base plate 1 to the first collecting hopper 2 at the end, thereby avoiding excessive accumulation of materials on the base plate 1 to affect the normal operation of the belt conveyor; there is no need to manually clean the materials, the work efficiency is high and there is no safety hazard.

[0028] In this embodiment, the belt conveyor is a high-angle belt conveyor (the inclination angle is greater than 30°), the bottom plate 1 is located below the return belt 5 of the belt conveyor, and the bottom plate 1 is 180 to 200 mm away from the return belt 5; the bottom plate 1 is arranged parallel to the return belt 5; the starting end of the bottom plate 1 is defined as the starting point of the return belt 5 (i.e. the highest point), and the end of the bottom plate 1 is defined as the end point of the return belt 5 (i.e. the lowest point).

[0029] Specifically, Figure 2 As shown, the driving mechanism includes a first drum 6, a second drum 7, a wire rope 8 and a driving component. The two ends of the transmission shaft of the first drum 6 are fixed to the end of the bottom plate 1 through a bearing seat 9, and the two ends of the transmission shaft of the second drum 7 are fixed to the beginning of the bottom plate 1 through a bearing seat 9. The first drum 6 and the second drum 7 are connected by a wire rope 8. The wire rope 8 between the first drum 6 and the second drum 7 is parallel to the bottom plate 1. The wire rope 8 is fixedly connected to the traveling trolley 3, and the output end of the driving component is connected to the transmission shaft of the first drum 6 through a coupling 10. The first drum 6 is driven to rotate by the driving component, and the second drum 7 is driven to rotate in coordination with the wire rope 8, thereby driving the wire rope 8 to move back and forth along the bottom plate 1, and driving the traveling trolley 3 to move along the bottom plate 1, so as to scrape off the materials accumulated on the bottom plate 1.

[0030] Furthermore, if Figure 3 As shown, connection points 11 are provided at both the front and rear ends of the top of the traveling trolley 3 for fixing the steel wire rope 8, and the steel wire rope 8 can be fixed by welding or other means.

[0031] Furthermore, if Figure 2As shown, the starting and end ends of the base plate 1 are both equipped with guide components for guiding the wire rope 8. The wire rope 8 between the two guide components and the wire rope 8 between the two connection points 11 are in a straight line. The purpose of this design is to ensure that the traction force of the wire rope 8 on the walking trolley 3 always coincides with the moving direction of the walking trolley 3, thereby preventing the walking trolley 3 from being subjected to the lateral tension of the wire rope 8; in order to prevent the wire rope 8 from slipping on the drum, the wire rope 8 is generally wound around the drum for several turns, which will result in the wire rope 8 between the two drums not only moving along the length direction of the wire rope 8 but also moving along the axial direction of the drum during the rotation of the drum. If no guide component is provided, the wire rope 8 will not coincide with the connecting line between the two connection points 11 after moving along the axial direction of the drum, thereby causing the walking trolley 3 to be subjected to lateral (i.e. axial) tension, thereby affecting the cleaning effect.

[0032] Furthermore, if Figure 2 As shown, the guide assembly includes two guide wheels 12 , and the two guide wheels 12 are respectively located on both sides of the wire rope 8 , and the wire rope 8 passes through the gap between the two guide wheels 12 .

[0033] Specifically, Figure 2 As shown, the driving component includes a motor 13 and a reducer 14. The motor 13 drives the reducer 14 to operate, and then the reducer 14 is used to output a large torque to the transmission shaft of the first reel 6 to drive the first reel 6 to rotate; in this embodiment, the speed ratio of the reducer 14 is about 100, which prevents the walking trolley 3 from walking too fast on the base plate 1 and causing excessive load on the scraper 4.

[0034] Furthermore, if Figure 3 As shown, a counterweight block 15 is installed inside the traveling trolley 3. On the one hand, the traveling trolley 3 can be driven to move along the starting end to the end of the bottom plate 1 by means of the gravity of the counterweight block 15 itself, thereby saving the energy consumption of the motor 13; on the other hand, the counterweight block 15 can ensure that the bottom end of the scraper 4 at the front end of the traveling trolley 3 is always in contact with the bottom plate 1 during the walking process, thereby improving the cleaning effect.

[0035] Preferably, if Figure 4 , 5 As shown, the top end of the scraper 4 is hinged to the top of the front end of the walking trolley 3. When the scraper 4 is perpendicular to the bottom plate 1, the bottom end of the scraper 4 abuts against the bottom plate 1. Figure 4As shown; the advantage of this design is that it prevents the scraper 4 from scraping the material on the bottom plate 1 to the beginning of the bottom plate 1 when the trolley 3 moves from the end of the bottom plate 1 to the beginning of the bottom plate 1. When the trolley 3 moves from the beginning to the end of the bottom plate 1, due to the accumulation of a certain thickness of material on the bottom plate 1, the bottom end of the scraper 4 will be blocked by the material, so that the scraper 4 cannot rotate to a vertical state under the action of its own gravity. As the trolley 3 continues to move downward, the scraper 4 rotates to a state perpendicular to the bottom plate 1, as shown in FIG. Figure 4 As shown; so that it is convenient to clean up the materials accumulated on the bottom plate 1; when the walking trolley 3 moves to the end of the bottom plate 1, it is necessary to return the walking trolley 3 to the beginning of the bottom plate 1. As the walking trolley 3 moves from the end to the beginning of the bottom plate 1, the scraper 4 will remain in a vertical state due to its own gravity, as shown in FIG. Figure 5 As shown, at this time, there is a certain gap between the bottom end of the scraper 4 and the bottom plate 1 to prevent the scraper 4 from scraping the residual or newly added materials on the bottom plate 1 to the beginning of the bottom plate 1, thereby improving the cleaning effect.

[0036] Preferably, the middle section of the bottom plate 1 is provided with a second collecting hopper 16, and the bottom of the second collecting hopper 16 is connected with a discharge pipe 17. Since the bottom plate 1 is long, the load of the scraper 4 from the beginning to the end of the bottom plate 1 is relatively large. By setting the second collecting hopper 16 in the middle section of the bottom plate 1, the load of the scraper 4 can be effectively reduced. The scraper 4 can scrape the material from the beginning to the middle section of the bottom plate 1 to the second collecting hopper 16 for collection, and clear the load of the scraper 4; then scrape the material from the middle section to the end of the bottom plate 1 to the first collecting hopper 2 for collection; the outlet of the discharge pipe 17 is provided with a collecting box for collecting and transporting the material falling from the second collecting hopper 16.

[0037] Furthermore, a vibrator 18 is installed on the outer wall of the first collecting hopper 2 and the second collecting hopper 16. By controlling the vibrator 18 to work intermittently, the first collecting hopper 2, the second collecting hopper 16 and the discharge pipe 17 can be prevented from being blocked.

[0038] The working process of the cleaning device of the present invention is as follows:

[0039] When the materials accumulated on the bottom plate 1 need to be cleaned, the motor 13 and the reducer 14 drive the first drum 6 to rotate forward, and the second drum 7 and the wire rope 8 drive the walking trolley 3 to move from the beginning to the end of the bottom plate 1, and the scraper 4 at the front end of the walking trolley 3 is used to scrape the materials accumulated on the bottom plate 1 into the first collecting hopper 2 at the end of the bottom plate 1;

[0040] After completing a cleaning operation, the first drum 6 is driven to reverse through the motor 13 and the reducer 14, and the second drum 7 and the wire rope 8 drive the walking trolley 3 to move along the end of the base plate 1 to the starting end, and the walking trolley 3 is retracted to the starting end of the base plate 1 to facilitate the next cleaning operation.

[0041] This embodiment can realize fully automated cleaning by programming the controller to automatically perform cleaning and retraction operations at regular intervals; in the specific implementation process, a position sensor (a photoelectric position sensor can be used) is respectively provided at the beginning and end of the base plate 1 to detect whether the walking trolley 3 has walked to the beginning or end of the base plate 1; in the process of performing the cleaning operation, when the position sensor at the end of the base plate 1 detects the walking trolley 3, it is judged that the walking trolley 3 is located at the end of the base plate 1, and the controller interlocks and controls the motor 13 to rotate in the opposite direction to perform the retraction operation; in the process of the retraction of the walking trolley 3, when the position sensor at the beginning of the base plate 1 detects the walking trolley 3, it is judged that the walking trolley 3 is located at the beginning of the base plate 1, and the controller interlocks and controls the motor 13 to stop running, and waits for a certain interval time (the interval time can be flexibly set according to the actual situation, such as 20 minutes, 30 minutes, etc.) before performing the cleaning operation again. A local operation switch can also be set to realize the cleaning and retraction operations through manual control.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom plate cleaning device for a high-angle belt conveyor, characterized in that: It comprises a driving mechanism and a cleaning mechanism, wherein the driving mechanism is used to drive the cleaning mechanism to move along the starting end to the end of a base plate (1), and a first collecting hopper (2) is provided at the end of the base plate (1); the cleaning mechanism comprises a walking trolley (3), and a scraper (4) is installed at the front end of the walking trolley (3).

2. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 1, characterized in that: The driving mechanism comprises a first drum (6), a second drum (7), a steel wire rope (8) and a driving component. The two ends of the transmission shaft of the first drum (6) are fixed to the end of the base plate (1) through a bearing seat (9), and the two ends of the transmission shaft of the second drum (7) are fixed to the beginning of the base plate (1) through a bearing seat (9). The first drum (6) and the second drum (7) are connected by transmission through the steel wire rope (8). The steel wire rope (8) between the first drum (6) and the second drum (7) is parallel to the base plate (1) and the return belt (5) of the belt conveyor. The steel wire rope (8) is fixedly connected to the walking trolley (3). The output end of the driving component is connected to the transmission shaft of the first drum (6) or the second drum (7) through a coupling (10).

3. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 2, characterized in that: The top and rear ends of the traveling trolley (3) are both provided with connection points (11) for fixing and connecting the steel wire rope (8).

4. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 3, characterized in that: The beginning and the end of the base plate (1) are both equipped with guide components for guiding the steel wire rope (8), and the steel wire rope (8) between the two guide components and the steel wire rope (8) between the two connection points (11) are in a straight line.

5. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 4, characterized in that: The guide assembly comprises two guide wheels (12), and the two guide wheels (12) are respectively located on both sides of the steel wire rope (8).

6. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 2, characterized in that: The driving component comprises a motor (13) and a reducer (14).

7. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 1, characterized in that: A counterweight (15) is installed inside the traveling trolley (3).

8. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 1, characterized in that: The top end of the scraper (4) is hinged to the top of the front end of the traveling trolley (3); when the scraper (4) is perpendicular to the bottom plate (1), the bottom end of the scraper (4) abuts against the bottom plate (1).

9. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 1, characterized in that: A second material collecting hopper (16) is provided in the middle section of the bottom plate (1), and a material discharge pipe (17) is connected to the bottom of the second material collecting hopper (16).

10. A large-angle belt conveyor bottom plate cleaning device as claimed in claim 9, characterized in that: Vibrators (18) are installed on the outer walls of the first collecting hopper (2) and the second collecting hopper (16).

Images