A conveyor head scrap removal device and method

Abstract

The application discloses a conveyor head material cleaning device and a material cleaning method thereof, and belongs to the technical field of belt conveyors. The conveyor head material cleaning device comprises a middle frame fixedly connected to the head of the conveyor, a material pushing assembly and a supporting frame fixedly connected to the bottom of the middle frame, and a material receiving disc is fixed on a material falling base surface below the supporting frame. The material pushing assembly comprises a vertical material pushing plate, the bottom end of the material pushing plate is slidingly connected to the disc surface of the material receiving disc, the back surface of the material pushing plate is fixedly connected to the telescopic end of a main material pushing mechanism, and the fixed end of the main material pushing mechanism is fixed to a support on the bottom of the supporting frame. The material falling to the disc surface of the material receiving disc can be pushed by the material pushing plate when the material reaches a certain weight, the scraper material cleaning device and the conveyor do not need to continuously run simultaneously, and the technical effect of intermittently pushing the material is achieved. The problems of high failure rate and high continuous running energy consumption of the scraper material cleaning device when the material falling from the head sweeper of the existing belt conveyor is cleaned are solved.

Description

A conveyor head cleaning device and cleaning method thereof Technical Field

[0001] This invention belongs to the field of belt conveyor technology, and more specifically, relates to a conveyor head cleaning device and cleaning method. Background Technology

[0002] Belt conveyors, also known as belt conveyors, are continuous transport machines widely used in various industrial production lines. The latest domestic standards for DTⅡ and DTⅡ(A) belt conveyors, due to the two-stage and three-stage cleaners in the head frame structure, prevent materials swept down from directly into the head hopper. The swept material requires regular cleaning by on-site maintenance personnel, resulting in high labor intensity and safety risks. This is especially true with the full implementation of the belt conveyor safety standard GB14784, making manual cleaning even more difficult.

[0003] The scraper cleaning device is commonly used in the market, but it has problems such as easy jamming of the conveyor chain and high failure rate. In addition, the scraper cleaning device needs to run continuously at the same time as the conveyor, which consumes a lot of energy and has high operating costs. Summary of the Invention

[0004] 1. The problem to be solved

[0005] To address the problems of high failure rate and high energy consumption during continuous operation when using scrapers to clean materials swept from the head of existing belt conveyors, this invention provides a conveyor head cleaning device and method. A main pushing mechanism pushes and pulls a pushing plate to push the material falling from the receiving tray into the funnel at the conveyor head. The material can be pushed only when it reaches a certain weight in the receiving tray, thus achieving intermittent feeding. The device features a simple structure and low failure rate.

[0006] 2. Technical Solution

[0007] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0008] This invention discloses a conveyor head cleaning device, comprising an intermediate frame fixedly connected to the conveyor head, a pushing assembly, and a support frame fixedly connected to the bottom of the intermediate frame. A receiving tray is fixed on the material dropping surface below the support frame. The material dropping surface refers to the material dropping surface cleaned by the two-stage and three-stage cleaners of the belt conveyor head frame structure. The pushing assembly includes a vertical pushing plate, the bottom end of which is slidably connected to the surface of the receiving tray. The back of the pushing plate is fixedly connected to the telescopic end of the main pushing mechanism. The fixed end of the main pushing mechanism is fixed to a support at the bottom of the support frame. The pushing plate can push materials that have accumulated to a certain weight on the surface of the receiving tray. This eliminates the need for the scraper cleaning device and the conveyor to operate continuously at the same time, allowing for intermittent material pushing and laying the foundation for electrified intelligent pushing.

[0009] Furthermore, the receiving tray is fixed to the material dropping base by a swing mechanism at its bottom. The swing mechanism is also fixedly connected to the material measuring and weighing component. The purpose of the swing fixing is to intermittently detach the receiving tray from the pusher plate so as to ensure that the material measuring and weighing component quantitatively weighs the material dropping accumulated on the surface of the receiving tray.

[0010] Furthermore, the swing mechanism includes a connecting rod support fixed to the bottom of the receiving tray and a base fixed to the material dropping surface, as well as a swing connecting rod hinged between the connecting rod support and the base; the body of the swing connecting rod is also hinged to the telescopic end of the auxiliary pushing mechanism, and the fixed end of the auxiliary pushing mechanism is fixed to the support on the material dropping surface, which is generally also hinged; through multi-point hinged connection, the swing action is flexible, simple and reliable.

[0011] Furthermore, the swaying mechanism consists of four symmetrically fixed to the bottom of the receiving tray, with limit blocks fixed on the material dropping base near the outer side of the swaying mechanism to limit the swaying amplitude of the swaying linkage.

[0012] Furthermore, two symmetrical hanging rail plates are fixed to the bottom inner sides of the support frame; the pushing assembly also includes rollers and axles; the upper end of the pushing plate is fixedly connected to the axle, and the two ends of the axle are respectively fixedly connected to the rollers and then rolled on the hanging rail plate to realize the suspended rolling of the pushing plate. The pushing plate rolls linearly on the hanging rail plate of the support frame, and the main pushing mechanism pushes with less effort.

[0013] Furthermore, the pusher plate is a folded plate with an inverted Z-shaped vertical cross section, so that the pusher plate pushes the material in front and the rolling action comes afterward, realizing the distance difference between the vertical plane of the material falling and the roller, and the roller does not affect the pusher plate's pushing action; on the hanging rail plate, there is a limit switch that limits the rolling range of the wheel axle to prevent rolling over-range.

[0014] Furthermore, the main pushing mechanism and the auxiliary pushing mechanism are electric push rods, pneumatic push rods, or hydraulic push rods, with electric push rods being preferred for convenient electrical intelligent pushing; the telescopic rod of the main pushing mechanism is hinged to the back of the pushing plate through a pin assembly, making it easy to assemble and disassemble.

[0015] Furthermore, a rubber plate is fixed to the bottom of the pusher plate, with the bottom end of the rubber plate slightly extending beyond the bottom end of the pusher plate. This allows for more thorough material pushing and cleaning, improving the cleaning effect and preventing excessive wear and tear on the pusher plate.

[0016] A method for cleaning materials in a conveyor head cleaning device: when the conveyor is working, the material swept down by the conveyor head cleaner falls into the receiving tray. When the material accumulates to the rated weight, the telescopic end of the main pushing mechanism pushes the pushing plate to push the material in the receiving tray into the funnel at the conveyor head, thereby achieving the purpose of intermittent pushing.

[0017] A method for cleaning materials using a conveyor head cleaning device, comprising the following steps:

[0018] S1, Tilting of the rocking link: The telescopic end of the auxiliary pushing mechanism pulls the rocking link, keeping the rocking link in an inclined state, and the surface of the receiving plate is lower than the bottom of the pushing plate;

[0019] S2, Material Drop: The conveyor continues to work, and the material swept off by the head sweeper of the conveyor falls into the receiving tray;

[0020] S3, Pushing: After the material measuring component detects that the material has reached the rated weight, the auxiliary pushing mechanism pushes the swing linkage to make it in a vertical position, the bottom end of the pushing plate presses against the surface of the receiving tray, and the main pushing mechanism pushes the pushing plate to push the material in the receiving tray into the funnel at the head of the conveyor.

[0021] S4, Pusher plate return: The main pushing mechanism pulls the pusher plate back to its original position;

[0022] S5. Cycle: Repeat steps S1 to S4 to continuously and automatically clean the material in the receiving tray.

[0023] It can achieve intermittent feeding and unloading while also enabling electrified intelligent control.

[0024] 3. Beneficial effects

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] (1) The conveyor head cleaning device and its cleaning method of the present invention can automatically measure the material in the receiving tray without accurately measuring the actual weight of the falling material. Only the measurement value needs to be set. The electric push rod can be electrically and intelligently controlled to periodically clean the material received in the receiving tray into the head funnel, which solves the problems of high labor intensity, high failure rate of scraper cleaning, high energy consumption and high operating cost of manual cleaning.

[0027] (2) The conveyor head cleaning device and cleaning method of the present invention can be connected by pins, which makes rotation flexible and convenient. The pusher plate runs in a straight line in the support frame through the rollers installed on it, which is simple and reliable. The main and auxiliary electric push rods can work intermittently, reducing energy consumption and saving costs. The entire cleaning process can achieve unmanned operation, which is safe and reduces the labor intensity of on-site employees and improves working conditions.

[0028] (3) In the conveyor head cleaning device of the present invention, the pusher plate is a folded plate with an inverted Z-shaped vertical cross section, so that the pusher plate pushes the material in front and the rolling action is behind, realizing the distance difference between the vertical plane of the material falling and the roller, and the roller does not affect the pusher plate's pushing. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the conveyor head cleaning device of the present invention after it swings to the right;

[0030] Figure 2 is a side view of Figure 1;

[0031] Figure 3 is a schematic diagram of the conveyor head cleaning device of the present invention in the reset state after swinging.

[0032] In the diagram: 1. Support frame; 2. Limit switch; 3. Limit stop; 4. Swing link; 5. Linkage support; 6. Receiving tray; 7. Pin assembly; 8. Roller; 9. Pushing assembly; 10. Main pushing mechanism; 11. Hanging rail plate; 12. Support one; 14. Support two; 15. Auxiliary pushing mechanism; 16. Measuring weight assembly; 18. Base; 19. Intermediate frame; 20. Dropping base; 30. Swing mechanism; 91. Pushing plate; 92. Wheel axle; 911. Rubber plate. Detailed Implementation

[0033] The present invention will be further described below with reference to specific embodiments.

[0034] Example 1

[0035] As shown in Figures 1 and 2, a conveyor head cleaning device according to this embodiment includes an intermediate frame 19 fixedly connected to the conveyor head, a pushing assembly 9, and a support frame 1 fixedly connected to the bottom of the intermediate frame 19. A receiving tray 6 is fixed on the dropping base surface 20 below the support frame 1. The dropping base surface 20 refers to the dropping surface of the material swept down by the two-stage and three-stage cleaners on the head frame structure of the belt conveyor. The pushing assembly 9 includes a vertical pushing plate 91. The bottom end of the pushing plate 91 is slidably connected to the surface of the receiving tray 6. The back of the pushing plate 91 is fixedly connected to the telescopic end of the main pushing mechanism 10. The fixed end of the main pushing mechanism 10 is fixed to the support 12 at the bottom of the support frame 1.

[0036] This embodiment of a conveyor head cleaning device allows for the intermittent pushing of materials from the conveyor head cleaner into the receiving tray 6 when the conveyor is in operation. The material accumulated to a certain weight on the receiving tray 6 is pushed by the pusher plate 91. This eliminates the need for the scraper cleaning device and the conveyor to operate continuously at the same time, allowing for intermittent material pushing and laying the foundation for electrified intelligent pushing.

[0037] Example 2

[0038] The conveyor head cleaning device in this embodiment has the same basic structure and shape as in Embodiment 1. The improvement or difference is that the receiving tray 6 is fixed to the dropping base 20 by a swing mechanism 30 at its bottom. The swing mechanism 30 is also fixedly connected to the material measuring component 16. The purpose of the swing fixing is to intermittently detach the receiving tray 6 from the pusher plate 91 so as to ensure that the material measuring component 16 quantitatively weighs the material accumulated on the surface of the receiving tray 6. The swing mechanism 30 includes a connecting rod support 5 fixed to the bottom of the receiving tray 6 and a base 18 fixed to the dropping base 20, as well as a swing connecting rod 4 hinged between the connecting rod support 5 and the base 18. The rod body of the swing connecting rod 4 is also hinged to the telescopic end of the auxiliary pushing mechanism 15. The fixed end of the auxiliary pushing mechanism 15 is fixed to the support 14 on the dropping base 20, which is also generally fixed by a hinge. Through multi-point hinged connection, the swing action is flexible, simple and reliable. Four swaying mechanisms 30 are symmetrically fixed to the bottom of the receiving tray 6. Limiting blocks 3 are fixed on the material dropping base 20 near the outer side of the swaying mechanism 30 to limit the swaying amplitude of the swaying linkage 4. Two hanging rail plates 11 are symmetrically fixed on the two inner sides of the bottom of the support frame 1. The pushing assembly 9 also includes rollers 8 and axles 92. The upper end of the pushing plate 91 is fixedly connected to the axle 92. The two ends of the axle 92 are fixedly connected to the two rollers 8 respectively, and then rolled on the two opposing hanging rail plates 11 on the two inner sides of the bottom of the support frame 1 to realize the suspended rolling of the pushing plate 91. The pushing plate 91 rolls linearly on the hanging rail plates 11 of the support frame 1, and the main pushing mechanism 10 pushes with less effort. The main pushing mechanism 10 and the auxiliary pushing mechanism 15 are electric push rods, pneumatic push rods or hydraulic push rods, preferably electric push rods, which facilitates intelligent electrical pushing; the telescopic rod of the main pushing mechanism 10 is hinged to the back of the pushing plate 91 through the pin assembly 7, which is convenient for disassembly and assembly.

[0039] The material cleaning method of the conveyor head cleaning device in this embodiment includes the following steps:

[0040] S1, the swing link is tilted: the telescopic end of the auxiliary pushing mechanism 15 pulls the swing link 4, so that the swing link 4 is kept in an inclined state, and the surface of the receiving plate 6 is lower than the bottom of the pushing plate 91.

[0041] S2, Material Drop: The conveyor continues to work, and the material swept off by the head cleaner of the conveyor falls into the receiving tray 6;

[0042] S3, Pushing: After the material measuring weight component 16 detects that the material has reached the rated weight, the auxiliary pushing mechanism 15 pushes the swing linkage 4 to make it in a vertical position, the bottom end of the pushing plate 91 presses against the surface of the receiving tray 6, and the main pushing mechanism 10 pushes the pushing plate 91 to push the material in the receiving tray 6 into the funnel at the head of the conveyor.

[0043] S4, Pusher plate return: The main pusher mechanism 10 pulls the pusher plate 91 back to its original position;

[0044] S5. Cycle: Repeat steps S1 to S4 to continuously and automatically clean the material in the receiving tray 6.

[0045] The conveyor head cleaning device and cleaning method of this embodiment can achieve intermittent pushing and dropping of materials, as well as electrified intelligent control.

[0046] Example 3

[0047] The conveyor head cleaning device of this embodiment has the same basic structure and shape as that of Embodiment 2. The improvement or difference is as follows: As shown in Figures 1 and 3, the pusher plate 91 is a folded plate with an inverted Z-shaped vertical cross section, so that the material is pushed by the pusher plate 91 in front and the rolling action is behind, realizing the distance difference between the vertical plane of the material falling and the roller 8. The roller 8 does not affect the pushing of the pusher plate 91. On the hanging rail plate 11, a limit switch 2 is fixed to limit the rolling range of the wheel axle 92 to prevent rolling over-range. As shown in Figure 3, a rubber plate 911 is also fixed to the bottom of the pusher plate 91. The bottom end of the rubber plate 911 extends slightly downward from the bottom end of the pusher plate 91, extending by 1 to 2 mm, so that the material pushing and cleaning is more thorough, improving the cleaning effect, and avoiding excessive wear and tear on the pusher plate 91. The material weighing component 16 generally includes components such as a spring, a measuring instrument, and a sensor. The material weighing component 16 does not need to accurately measure the actual weight of the dropped material; it only needs to set the measurement value. One end of the spring is connected to the rocker link 4, and the other end is fixedly connected to the measuring instrument. When the rocker link 4 is in an inclined state, it applies pressure to the spring. The measuring instrument quantifies the weight of the dropped material by measuring this pressure and sends a signal through the sensor.

[0048] The material cleaning method of the conveyor head cleaning device in this embodiment includes the following steps:

[0049] 1. Install this device under the second and third stage cleaners at the head of the conveyor, as shown in Figure 1. By pulling the electric push rod, the swing linkage 4 is tilted to the right, and the push plate 91 is disengaged from the receiving plate 6.

[0050] 2. When the conveyor is working, the material swept down by the second and third stage cleaners falls into the receiving tray 6;

[0051] 3. After the sensor in the material measuring weight assembly 16 detects that the material has reached a certain weight, the sensor sends a signal, as shown in Figure 3. The electric push rod pushes the swing linkage 4 to make it in a vertical position. At this time, the sensor in the limit block 4 sends a signal, the main electric push rod works, pushes the push plate 91, and pushes the material in the receiving tray 6 into the head funnel.

[0052] 4. When roller 8 touches the limit switch 2 at the front end, the limit switch 2 sends a signal, the auxiliary electric push rod retracts, and the rocker linkage 4 is put back in the tilted state. After a set time of several seconds, the signal is sent to the main electric push rod to quickly push back, and when it touches the limit switch 2 at the rear end, it stops.

[0053] The above workflow is repeated to achieve continuous, intermittent, automatic material cleaning. All connecting parts in this device are hinged using pin assemblies 7. Pin assembly 7 is generally a mating body of a pin seat and a pin shaft. In this device, support 12, support 2 14, base 18, and connecting rod support 5 are all pin seats, allowing for flexible and convenient rotation. In the pushing assembly 9, rollers 8 move linearly within the support frame 1, ensuring simplicity and reliability. The intermittent operation of each electric push rod reduces energy consumption and saves on-site costs. The entire cleaning process can achieve unmanned operation, ensuring safety while reducing the labor intensity of on-site employees and improving working conditions.

[0054] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A cleaning method for a conveyor head cleaning device, characterized in that: The conveyor head cleaning device includes an intermediate frame (19) fixedly connected to the conveyor head, a pushing assembly (9), and a support frame (1) fixedly connected to the bottom of the intermediate frame (19). A receiving tray (6) is fixed on the material dropping base (20) below the support frame (1). The pushing assembly (9) includes a vertical pushing plate (91). The bottom end of the pushing plate (91) is slidably connected to the surface of the receiving tray (6). The back of the pushing plate (91) is fixedly connected to the telescopic end of the main pushing mechanism (10). The fixed end of the main pushing mechanism (10) is fixed to a support at the bottom of the support frame (1). (12) On; the receiving tray (6) is fixed to the dropping base (20) by a swing mechanism (30) at its bottom, and the swing mechanism (30) is also fixedly connected to the measuring weight assembly (16); the swing mechanism (30) includes a connecting rod support (5) fixed to the bottom of the receiving tray (6) and a base (18) fixed to the dropping base (20), and a swing connecting rod (4) hinged between the connecting rod support (5) and the base (18); the rod body of the swing connecting rod (4) is also hinged to the telescopic end of the auxiliary pushing mechanism (15), and the fixed end of the auxiliary pushing mechanism (15) is fixed to the dropping base (20). On the support two (14) on the material base surface (20); there are four swing mechanisms (30), which are symmetrically fixed to the bottom of the receiving tray (6); a limit block (3) is fixed on the material base surface (20) near the outside of the swing mechanism (30); the bottom two inner sides of the support frame (1) are symmetrically fixed with hanging rail plates (11); the pushing assembly (9) also includes rollers (8) and wheel axles (92); the upper end of the pushing plate (91) is fixedly connected to the wheel axle (92), and the two ends of the wheel axle (92) are respectively fixedly connected to the rollers (8) and then rolled on the two opposite hanging rail plates (14). 1) The pusher plate (91) is a folded plate with an inverted Z-shaped vertical cross section; on the hanging rail plate (11), a limit switch (2) is fixed to limit the rolling range of the wheel axle (92); the main pusher mechanism (10) and the auxiliary pusher mechanism (15) are electric push rods, pneumatic push rods or hydraulic push rods, and the telescopic rod of the main pusher mechanism (10) is hinged to the back of the pusher plate (91) through the pin assembly (7); a rubber plate (911) is also fixed to the bottom of the pusher plate (91), and the bottom end of the rubber plate (911) extends slightly downward from the bottom end of the pusher plate (91); the steps are: S1 S1. S2. S3. S4. S5. S6. S7. S8. S9. S10. S2. S3. S4 ...S3, Pushing: After the material weighing component (16) detects that the material has reached the rated weight, the auxiliary pushing mechanism (15) pushes the swing linkage (4) to make it vertical. The bottom end of the pushing plate (91) presses against the surface of the receiving tray (6). The main pushing mechanism (10) pushes the pushing plate (91) to push the material in the receiving tray (6) into the funnel at the head of the conveyor. S4, Pushing plate return: The main pushing mechanism (10) pulls the pushing plate (91) back to its original position. S5, Cycle: Repeat steps S1 to S4 to continuously and automatically clean the material in the receiving tray (6).

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