Novel fully-sealed belt conveyor

Abstract

The utility model belongs to the technical field of conveying belt production, and particularly discloses a novel fully-sealed belt conveyor. Comprising a rack, a sealing housing, a belt conveyor, a scraping assembly and a switch assembly. The sealing housing covers the machine frame, the belt conveyor is arranged on the machine frame, the scraping assembly is used for cleaning excess materials on a conveying belt of the belt conveyor, the scraping assembly is arranged on the machine frame, the switch assembly is used for controlling the belt conveyor to be opened and closed, and the switch assembly is electrically connected with the belt conveyor. In the practical application, the sealing housing ensures that materials conveyed by the internal belt conveyor are not influenced by the external environment, residual materials on the belt conveyor are cleaned up through the scraping assembly, and the problems that dust falls easily when the belt conveyor conveys the materials, and the residual materials on the belt conveyor are difficult to clean up are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conveyor belt production, and specifically discloses a novel fully sealed belt conveyor. Background Art

[0002] As a classic material handling equipment, belt conveyors are widely used in mining, metallurgy, coal, ports, building materials, chemicals and other industries due to their large conveying capacity, flexible structure and easy maintenance. Traditional belt conveyor designs focus on improving conveying efficiency and load-bearing capacity, but pay little attention to the sealing of the conveyor and the cleaning of excess material on the conveyor belt.

[0003] Patent announcement number CN208666357U is a food conveyor capable of automatic circulation cleaning, comprising a frame and a conveyor belt arranged on the frame. The bottom of the frame is provided with a brush roller that is rotatable and tangent to the conveyor belt, a spray group that sprays water on the conveyor belt, a scraper attached to the surface of the conveyor belt at the end, and a water blowing device in sequence from the conveying end to the starting conveying end; the spray group includes a water spray pipe horizontally arranged in the width direction of the conveyor belt and a spray head arranged on the water spray pipe and corresponding to the conveyor belt, the frame is fixed with a drip groove below the spray group and the scraper group, the bottom of the drip groove is an inclined structure, and a water pump is placed on the lower end of the bottom of the drip groove, and a water diversion pipe is connected between the water outlet end of the water pump and the water spray pipe; the water blowing device is a wind knife horizontally arranged in the width direction of the conveyor belt, one end of the wind knife is connected to the air source through an air pipe, and an air valve for controlling the connection between the air source and the wind knife is provided on the air pipe. The sealing performance of the above device is poor, impurities in the air may adhere to the food and cause food contamination, and the above device cannot shut down the machine in time when the conveyor belt deviates or fails. Therefore, it is urgent for those skilled in the art to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a new type of fully sealed belt conveyor in view of the deficiencies of the above-mentioned prior art. The new type of fully sealed belt conveyor isolates the belt conveyor from the outside through a sealed cover, reduces the influence of the external environment on the material, cleans the residual material on the conveyor belt through a scraper component, and controls the opening and closing of the drive motor through a switch component, effectively preventing the influence of accidents on the belt conveyor.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A new type of fully sealed belt conveyor, including a frame, a sealed cover, a belt conveyor, a scraper assembly and a switch assembly; the frame is covered with the sealed cover, the belt conveyor is arranged on the frame, the belt conveyor includes a transmission belt and a drive motor, the scraper assembly is used to clean the residual material on the transmission belt, the scraper assembly is arranged on the frame, the switch assembly is used to control the opening and closing of the drive motor, and the switch assembly is electrically connected to the drive motor.

[0007] Furthermore, the scraper assembly includes a chain scraper, a head adjustable scraper and a blank section scraper; the chain scraper includes a scraper chain and a plurality of scrapers, the scraper chain is installed on the left and right sides of the conveyor belt, and the scraper is arranged between the scraper chains; the head adjustable scraper is arranged at the lower part of the conveyor belt; the blank section scraper is arranged on the inner side of the conveyor belt.

[0008] By installing scraper chains and multiple scrapers on the left and right sides of the conveyor belt, this design can effectively capture and remove materials missed along the two sides during the belt conveying process, reduce material losses, and keep the working environment clean. The continuous movement of the scraper chain is synchronized with the belt to ensure efficient cleaning effect, which is suitable for continuous and large-scale material conveying. The head adjustable scraper installed at the bottom of the conveyor belt adopts a pre-pressure regulator to ensure constant contact pressure between the scraper and the belt. This design can not only effectively remove fine particles and wet sticky materials remaining on the belt surface, but also adapt to different belt wear degrees and material properties due to its adjustment function, ensuring long-term stable scraping effect and belt life. The empty section scraper set on the inside of the conveyor belt, especially combined with the wind knife cleaning mechanism, is an effective solution for dust adhesion and difficult-to-clean areas on the inside of the belt. It can penetrate into the non-working surface where the belt is not in direct contact with the material, and use the high-speed airflow generated by the wind knife to blow away the dust and fine particles adhering to the belt, preventing belt wear and operation failure caused by material accumulation, while also improving the sanitary conditions and work efficiency of the entire conveying system.

[0009] Furthermore, the empty section scraper includes a fan and an air knife, the air knife is provided with a plurality of air outlets, and the fan is connected to the air knife to send high-pressure gas to the inner side of the conveyor belt of the belt conveyor through the air outlets.

[0010] The multiple air outlets arranged on the wind knife can generate concentrated and powerful airflow, which directly acts on the inner side of the belt and effectively removes dust and fine particles adhering to the non-working surface of the belt. Compared with the traditional physical scraping method, wind knife cleaning is more efficient and less likely to damage the belt, ensuring the cleanliness of the belt and extending its service life. Through continuous airflow blowing, it can effectively reduce the residual material on the back of the belt, avoiding the waste caused by the material not being able to reach the destination due to adhesion, and improving the material transportation efficiency and overall economic benefits. The introduction of the wind knife cleaning mechanism reduces the frequency and intensity of manual cleaning. The automated cleaning process reduces the maintenance workload and reduces the risk of equipment damage caused by improper manual operation, thereby saving maintenance costs. Efficient dust removal not only keeps the working environment clean, reduces the dust concentration in the air, and is beneficial to the health of workers, but also meets the requirements of modern industrial environmental protection, reducing safety hazards such as fire and explosion caused by dust accumulation. Continuous cleaning operations reduce the possibility of belt deviation and premature wear, ensuring the stable operation of the conveying system and reducing production losses caused by downtime.

[0011] Furthermore, the switch assembly includes a pull-rope switch and a deviation switch, the pull-rope switch is installed on both sides of the frame, the pull-rope switches on both sides of the frame are connected together by steel wire ropes, and the steel wire ropes are arranged along the transmission belts on both sides of the belt conveyor; the deviation switch is arranged on both sides of the transmission belt of the belt conveyor; the deviation switch and the pull-rope switch are electrically connected to the belt conveyor.

[0012] The pull-rope switch area is connected by steel wire ropes on both sides of the frame. Once the staff on the production line finds an emergency (such as equipment failure, personal safety threat, etc.), they can pull the steel wire rope at any position along the conveyor to quickly trigger the pull-rope switch and immediately stop the operation of the belt conveyor through electrical connection, effectively preventing the accident from expanding and ensuring the safety of personnel. The deviation switch is installed on both sides of the belt and can monitor the running track of the belt in real time. Once the belt deviates and touches the sensor of the deviation switch, it will also respond quickly through electrical connection and send a signal to the control system to prompt the belt conveyor to automatically adjust or stop, preventing the belt edge from aggravating wear, belt breakage, and the material leakage and equipment damage that may be caused thereby, ensuring the continuity and stability of the conveying operation. The layout design of the pull-rope switch and the deviation switch is convenient for installation on both sides of the frame and belt, without interfering with the main operating components of the belt conveyor, simplifying the installation process. At the same time, since they are independent components, they can be quickly located and carried out when maintenance or replacement is required, reducing downtime and improving maintenance efficiency.

[0013] Furthermore, a weighing device is provided inside the conveying belt of the belt conveyor, and the weighing device is in contact with the upper part of the conveying belt.

[0014] The weighing device that directly contacts the belt can measure the weight of the material passing through in real time and dynamically to achieve accurate measurement. This is crucial for production processes that require strict control of raw material ratios or product weights, such as ingredients, packaging and other industries, and helps to improve product quality consistency and production efficiency. Compared with traditional non-contact or external weighing methods, this design reduces measurement errors caused by factors such as uneven material distribution and belt shaking, improves the accuracy of measurement, and ensures the realization of precise material transportation. The data of the weighing device can be fed back to the control system in real time, and the conveying speed and feeding amount can be automatically adjusted according to the actual weight to achieve intelligent control of the production process. This is very beneficial for material management, inventory control and cost accounting of automated production lines. By accurately controlling the conveying volume, it avoids material waste caused by excessive conveying or production stagnation caused by insufficient conveying, optimizes material flow and use efficiency, thereby saving costs and improving overall production efficiency. The weighing device design on the inside of the belt adapts to the special working environment of the fully sealed belt conveyor, and can work stably even under dusty or wet conditions, ensuring measurement accuracy under harsh working conditions.

[0015] The utility model has the following beneficial effects:

[0016] The fully sealed design formed by the sealed cover effectively curbs the leakage of dusty materials during the conveying process and significantly reduces the dust concentration in the working environment. The comprehensive use of chain scrapers, head adjustable scrapers and empty section scrapers almost comprehensively covers the material leakage problem in the belt conveying process, effectively reduces material loss, and improves the overall conveying efficiency and economy. The setting of deviation switch and pull rope switch realizes automatic detection of belt deviation and rapid response in emergency situations, improves the safety and automation level of the equipment, reduces human intervention, and reduces the probability of unexpected downtime. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the internal structure diagram of the utility model.

[0018] Figure 2 It is a left view of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the A part of the utility model.

[0020] Figure 4 It is a structural schematic diagram of part B of the utility model.

[0021] The components include: 1-frame; 2-sealed cover; 3-belt conveyor; 31-drive motor; 311-first drive motor; 312-second drive motor; 32-transmission belt; 4-scraper assembly; 41-chain scraper; 411-scraper chain; 412-scraper; 42-head adjustable scraper; 421-scraper; 43-empty section scraper; 431-wind knife; 4311-air outlet; 432-fan; 5-switch assembly; 51-pull rope switch; 52-deviation switch; 6-weighing device. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0023] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0024] Reference Figure 1 and Figure 2 It can be seen that a new type of fully sealed belt conveyor includes a frame 1 constituting the main body of the device, the frame 1 is covered with a sealed cover 2 as a whole, a belt conveyor 3 is arranged in the middle position of the frame 1, the belt conveyor 3 is electrically connected to a first driving motor 311, and a transmission belt 32 of the belt conveyor 3 is driven to move by a gear shaft of the driving motor 31, and a scraper assembly 4 is also arranged in the frame 1, wherein a chain scraper 41 is arranged below the transmission belt 32, the chain scraper 41 is connected to the second driving motor 312 through a scraper chain 411, and a scraper 412 is arranged between the scraper chains 411, and a head adjustable scraper 42 is arranged below the transmission belt 32, and a head adjustable scraper 42 is arranged below the transmission belt 32. The adjustable scraper is in contact with the conveyor belt through the scraper 421, the empty section scraper 43 is arranged on the inner side of the conveyor belt 32, the wind knife 431 of the empty section scraper 43 is in close contact with the conveyor belt 32, the wind knife 431 is supplied with air through the fan 432, and the high-pressure gas is sent to the conveyor belt 32 through the air outlet 4311, the pull-rope switch 51 is arranged on the frame 1 on both sides of the belt conveyor, and the two pull-rope switches 51 are connected by steel wire rope along both sides of the conveyor belt 32, the deviation switch 52 is arranged on both sides of the conveyor belt 32, and a weighing device 6 is also arranged on the inner side of the conveyor belt 32, and the upper part of the weighing device 6 is in contact with the conveyor belt 32.

[0025] In one embodiment, when installing a fully sealed belt conveyor, first assemble the frame 1, fix it at a predetermined position with anchor bolts to ensure that the frame is level and stable, install the sealing cover 2 on the frame 1 section by section to ensure good sealing, use sealing strips or sealants to enhance the sealing effect to prevent dust leakage, install the belt conveyor 3 at a predetermined position of the frame 1, ensure that the pulley of the belt conveyor 3 is aligned with the gear shaft, install the first drive motor 311 and the second drive motor 312 at predetermined positions respectively, and connect them to the transmission mechanism of the belt conveyor 3, realize transmission through the gear shaft or chain, correctly install the transmission belt 32 on the pulley, and adjust the tension to a suitable range;

[0026] Install the chain scraper 41 assembly under the conveyor belt 32, ensure that the scraper chain 411 is correctly connected to the drive motor 312, adjust the distance between the scraper 412 and the conveyor belt 32, install the head-adjustable scraper 42 under the conveyor belt 32, adjust the contact pressure of the scraper 421 to make it fit tightly with the conveyor belt 32, install the empty section scraper 43 on the inner side of the conveyor belt 32, make the wind knife 431 close to the conveyor belt 32, connect the fan 432, and ensure that the air outlet 4311 faces the inner side of the conveyor belt 32;

[0027] A pull rope switch 51 is installed on both sides of the frame 1, and the pull rope switch 51 is connected along both sides of the conveyor belt 32 with a steel wire rope to ensure that the power supply can be quickly cut off in an emergency. A deviation switch 52 is installed on both sides of the belt, and the position is adjusted so that the deviation switch 52 can be triggered in time when the belt deviates.

[0028] Reference Figure 3 It can be seen that the deviation switch 52 is set on both sides of the conveyor belt 32, and the sensor rod of the deviation switch 52 is close to the conveyor belt 32.

[0029] In one embodiment, when the belt conveyor is in operation, due to various reasons (such as uneven load, belt slack, roller deflection, etc.), the conveyor belt 32 deviates from its normal operating trajectory (i.e., deviates). The roller travel switch has a rollable transmission rod and a pair of contacts (moving contact and fixed contact) which are usually installed on both sides of the conveyor near the edge of the belt. The structure with a handle is designed so that the conveyor belt 32 directly contacts the roller travel switch when it deviates. The transmission rod is connected to the outside of the roller travel switch. When the conveyor belt 32 deviates and contacts the transmission rod, the transmission rod will be pushed by the edge of the conveyor belt 32 and rotate. The moving contact is installed on the transmission rod and arranged opposite to the fixed contact. Under normal circumstances, the two do not contact, forming a disconnected state. When the conveyor belt 32 deviates, the transmission rod rotates, and the moving contact is driven to contact the fixed contact to form a closed loop. The roller travel switch is connected through the control box to receive the signal from the sensor rod. When the switch is closed, the circuit in the control box is triggered to execute the corresponding control logic, such as issuing an alarm or directly controlling the conveyor to stop running.

[0030] Reference Figure 4 It can be seen that the weighing device 6 is installed on the inner side of the conveyor belt 32.

[0031] In one embodiment, when the material passes through the conveyor belt 32, the weight on the conveyor belt 32 will cause a slight deformation of the weighing device 6 below the conveyor belt 32. The strain gauge (metal foil attached to the elastic element) installed on the weighing device 6 will also undergo a slight deformation, causing its resistance value to change. Since the change in resistance value is proportional to the magnitude of the force applied, the weight of the material can be calculated through circuit conversion. The electrical signal measured by the weighing device 6 will be transmitted to the electronic controller or instrument, and after amplification, filtering, and digital processing, it will be converted into a weight reading. These data can be displayed in real time, or transmitted to a host computer or an automated control system through a communication interface (such as RS485, Ethernet) for monitoring, recording or controlling the material flow.

[0032] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A new type of fully sealed belt conveyor, characterized by: It includes a frame, a sealing cover, a belt conveyor, a scraper assembly and a switch assembly; the frame is covered with the sealing cover, the belt conveyor is arranged on the frame, the belt conveyor includes a conveying belt and a driving motor, the scraper assembly is used to clean the residual material on the conveying belt, the scraper assembly is arranged on the frame, the switch assembly is used to control the opening and closing of the driving motor, and the switch assembly is electrically connected to the driving motor.

2. A new fully sealed belt conveyor according to claim 1, characterized in that: The scraper assembly includes a chain scraper, a head adjustable scraper and a blank scraper; the chain scraper includes a scraper chain and a plurality of scrapers, the scraper chain is installed under the conveyor belt, and the scrapers are arranged between the scraper chains; the head adjustable scraper also includes a scraper, and the scraper is in contact with the lower part of the conveyor belt; the blank scraper is arranged on the inner side of the conveyor belt.

3. A new fully sealed belt conveyor according to claim 2, characterized in that: The empty section scraper comprises a fan and an air knife, the air knife is provided with a plurality of air outlets, and the fan is connected to the air knife to send high-pressure gas to the inner side of the conveying belt of the belt conveyor through the air outlets.

4. A new type of fully sealed belt conveyor according to claim 1, characterized in that: The switch assembly includes a pull-rope switch and a deviation switch. The pull-rope switch is installed on both sides of the frame. The pull-rope switches on both sides of the frame are connected together by steel wire ropes. The steel wire ropes are arranged along the transmission belts on both sides of the belt conveyor; the deviation switch is arranged on both sides of the transmission belt of the belt conveyor; the deviation switch and the pull-rope switch are electrically connected to the belt conveyor.

5. The novel fully sealed belt conveyor according to claim 1 is characterized in that: A weighing device is also arranged on the inner side of the conveying belt of the belt conveyor, and the weighing device is in contact with the upper part of the conveying belt.

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