A shutdown protection device for preventing belt tear

Abstract

The application relates to a shutdown protection device for preventing belt tearing, and relates to the technical field of belt protection devices. In order to solve the problem that a belt cannot be timely discovered in an abnormal state, the device comprises a material receiving disc arranged in the middle of the belt, a bottom plate is arranged at the bottom end of the material receiving disc, L-shaped plates are arranged on the two sides of the bottom plate, an outer plate for connecting with an external structure is arranged at the bottom of any one of the L-shaped plates, a supporting mechanism is arranged between the L-shaped plate and the corresponding outer plate, the supporting mechanism comprises a T-shaped plate, a spring and a bottom cylinder, a triggering mechanism is further arranged between the L-shaped plate and the corresponding outer plate, the triggering mechanism comprises a pressing table and a triggering switch, the pressing table is vertically connected to the bottom of the L-shaped plate, the triggering switch is connected to the top of the outer plate, the pressing table is arranged above the triggering switch and a gap is kept between the two. The application has the effects of realizing efficient protection of belt operation and timely interrupting belt operation.

Description

Technical Field

[0001] This application relates to the field of belt protection device technology, and in particular to a shutdown protection device to prevent belt tearing. Background Technology

[0002] As a key piece of equipment for material transportation in modern industrial production, belt conveyor systems have been widely used in many industries such as coal, metallurgy, chemical, building materials, and ports due to their significant advantages such as strong transportation capacity, stable operation, and ability to achieve continuous operation.

[0003] During the daily operation of belt conveyor systems, problems such as material leakage or belt tearing may occur due to wear and aging, scratches from iron objects, etc. If there are no anti-tear protection measures during belt operation, or if abnormal belt conditions are not detected in time, the entire belt may be damaged. Replacement work not only requires a lot of time and manpower, but also affects the stable operation of coal and coke supply processes, so it needs to be improved. Utility Model Content

[0004] To address the problem of belt malfunctions not being detected in a timely manner, this application provides a shutdown protection device to prevent belt tearing.

[0005] The shutdown protection device for preventing belt tearing provided in this application adopts the following technical solution:

[0006] A shutdown protection device to prevent belt tearing includes a receiving tray arranged in the middle of the belt. A base plate is provided at the bottom of the receiving tray, and L-shaped plates are provided on both sides of the base plate. Each L-shaped plate has an outer plate at its bottom for connection to an external structure. A support mechanism is provided between the L-shaped plate and the corresponding outer plate. The support mechanism includes a T-shaped plate, a spring, and a bottom cylinder. The T-shaped plate is connected to the bottom of the L-shaped plate, and the bottom cylinder is connected to the top of the outer plate. The protrusion of the T-shaped plate extends into the bottom cylinder. The spring is sleeved on the protrusion of the T-shaped plate, with its upper end in contact with the T-shaped plate and its lower end located inside the bottom cylinder. A triggering mechanism is also provided between the L-shaped plate and the corresponding outer plate. The triggering mechanism includes a pressure table and a trigger switch. The pressure table is vertically connected to the bottom of the L-shaped plate, and the trigger switch is connected to the top of the outer plate. The pressure table is arranged above the trigger switch, and the two maintain a gap.

[0007] Due to wear, aging, and scratches from metal objects, belts may experience problems such as material leakage or belt tearing. If tear-proof protection measures are lacking during belt operation, or if abnormalities are not detected in time, the entire belt may be damaged. Replacement not only requires significant time and manpower but also affects the stable operation of coal and coke supply processes. The above-mentioned technical solution, including a receiving tray installed in the middle of the belt and mounted on a base plate, addresses this issue. The receiving tray is fixed to both sides of the base plate, with an outer plate below each L-shaped plate. A support mechanism and a triggering mechanism are installed between the L-shaped plate and the corresponding outer plate. The support mechanism includes a T-shaped plate, a spring, and a bottom cylinder, while the triggering mechanism includes a pressure table and a trigger switch.

[0008] When a material leaks from the belt, the leaked material falls onto the receiving tray located in the middle of the belt. Because the receiving tray is positioned directly below the belt, it can promptly catch the material leaking from the damaged area. As the amount of material leaking into the receiving tray increases, the weight of the material on the receiving tray and its base plate gradually increases. This increased weight creates a downward force, causing the L-shaped plate to compress the support mechanism. The T-shaped plate moves downward along the bottom cylinder, and the spring is compressed during this downward movement, providing a buffer time for the subsequent triggering mechanism. As the L-shaped plate continues to move downward, the pressure table also moves downward. As the L-shaped plate moves downward, the gap between the pressure table and the trigger switch gradually decreases until the amount of material leaking into the receiving tray reaches a certain level. When the L-shaped plate descends to a certain extent, the pressure table contacts the trigger switch and applies pressure. The trigger switch is then activated by the pressure and sends a stop signal to the belt control system, allowing for timely shutdown.

[0009] By incorporating a receiving tray, support mechanism, and triggering mechanism, the system achieves efficient protection for belt operation. It can promptly catch material leakage caused by wear, scratches, or other abnormalities, reducing the possibility of material spillage damaging equipment or causing secondary malfunctions. It can also promptly interrupt belt operation to prevent further tearing, significantly reducing maintenance costs and production downtime losses caused by serious belt failures, ensuring production continuity, and improving production stability.

[0010] Optionally, the top of the receiving tray has a funnel-shaped structure that is wider at the top and narrower at the bottom.

[0011] By adopting the above technical solution, the top of the receiving tray has a funnel-shaped structure that is wider at the top and narrower at the bottom. By setting the shape of the receiving tray, the funnel opening expands the material receiving range. Even if there is a slight deviation at the location of the belt breakage, the leaked material can be accurately guided into the receiving tray, avoiding spillage to the equipment below and causing secondary damage.

[0012] Optionally, multiple sets of holes and slots are provided through the middle of both the L-shaped plate and the outer plate, and a sliding rod is provided between the L-shaped plate and the outer plate for passing through the corresponding holes and slots. The top end of the sliding rod is provided with a locking bolt for fixing it to the L-shaped plate.

[0013] By adopting the above technical solution, the slide rod passes through the holes and slots on the L-shaped plate and the outer plate in sequence, and the slide rod is fixed to the L-shaped plate by locking bolts. The holes and slots and locking bolts form a stable guiding mechanism, ensuring accurate guidance of the vertical movement of both, so that the triggering mechanism is always in the optimal working position and improving the triggering accuracy.

[0014] Optionally, the slide bar has a U-shaped structure, and the top end of the slide bar has a threaded portion for engaging with the locking bolt.

[0015] By adopting the above technical solution, the slide bar has a U-shaped structure with a threaded part formed at the top. Through the shape of the slide bar and the setting of the threaded part, the two sides of the U-shaped structure form a double-point support, effectively dispersing the stress generated by the impact of material leakage, avoiding structural deformation caused by single-bar stress, and extending service life.

[0016] Optionally, the trigger switch is a contact-type switch, with the moving contact of the trigger switch located at the bottom of the pressure table and the stationary contact of the trigger switch located on the trigger switch housing. The stationary contact is connected to the moving contact via a pin.

[0017] By adopting the above technical solution, the trigger switch is a contact-type switch. By setting the trigger switch and adopting a contact-type trigger switch, a sensitive and reliable shutdown trigger mechanism is realized. When the material leakage accumulates in the receiving tray, causing the L-shaped plate to press down and drive the pressure table to move down to contact the trigger switch, the moving contact and the stationary contact close instantly. The control circuit is quickly connected through the pin, and a shutdown signal is immediately sent to the belt control system, effectively avoiding the expansion of belt tearing caused by signal delay.

[0018] Optionally, the number of support mechanisms between the L-shaped plate and the corresponding outer plate is two sets, and the four sets of support mechanisms are arranged symmetrically at the four corners.

[0019] By adopting the above technical solution, four sets of support mechanisms are symmetrically installed on the four sides of the receiving tray. Through the setting of the number and arrangement of the support mechanisms, the symmetrical layout makes the weight of the leaked material on the receiving tray and the bottom plate evenly distributed to the four support points, effectively avoiding structural eccentricity and overturning problems that may be caused by single-sided or double-sided support, and ensuring the horizontal stability of the receiving tray in the process of receiving leaked material.

[0020] Optionally, fixing bolts for connection are provided between the L-shaped plate and the base plate.

[0021] By adopting the above technical solution, fixing bolts are installed between the L-shaped plate and the base plate. The setting of fixing bolts improves the stability of the connection and ensures that the L-shaped plate and the base plate can still maintain a tight fit without the risk of loosening when subjected to complex working conditions such as material leakage impact and equipment vibration. At the same time, the bolt connection method has the characteristics of convenient disassembly and assembly and reusability.

[0022] Optionally, a blocking mechanism for intercepting induction is provided above the receiving tray, with the two ends of the blocking mechanism respectively arranged on two L-shaped plates.

[0023] By adopting the above technical solution, the receiving tray is equipped with a blocking mechanism; the setting of the blocking mechanism forms a double protection against material leakage. The blocking mechanism can block large pieces of material or sharp foreign objects splashed from the belt breakage point in advance through physical interception, and immediately trigger an emergency stop signal through mechanical collision or pressure sensing.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Through the setting of receiving tray, support mechanism and triggering mechanism, efficient protection of belt operation is achieved. It can promptly receive material leakage caused by wear, scratches and other abnormalities, reduce the possibility of material spillage damaging the equipment or causing secondary failures, and can also interrupt belt operation in time to prevent tearing from spreading. It significantly reduces maintenance costs and production downtime losses caused by serious belt failures, ensures production continuity and improves production stability.

[0026] 2. By designing the shape of the receiving tray, the flared opening expands the material receiving range. Even if there is a slight shift in the location of the belt breakage, the leaked material can be accurately guided into the receiving tray, preventing it from spilling onto the equipment below and causing secondary damage.

[0027] 3. The design of the slots and locking bolts creates a stable guiding mechanism, ensuring precise guidance of the vertical movement of both components. This keeps the triggering mechanism in the optimal working position, improving triggering accuracy. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a shutdown protection device for preventing belt tearing in an embodiment of this application.

[0029] Figure 2 This is a front view of a shutdown protection device for preventing belt tearing in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the exploded structure used to illustrate the triggering mechanism in the embodiments of this application.

[0031] Figure 4 This is a structural schematic diagram used to illustrate the support mechanism in the embodiments of this application.

[0032] Explanation of reference numerals in the attached drawings: 1. Belt; 2. Receiving tray; 21. Base plate; 22. L-shaped plate; 23. Groove; 3. Outer plate; 4. Support mechanism; 41. T-shaped plate; 42. Spring; 43. Bottom cylinder; 5. Trigger mechanism; 51. Pressing table; 52. Trigger switch; 6. Slide rod; 61. Locking bolt; 7. Fixing bolt; 8. Locking mechanism. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0034] This application discloses a shutdown protection device to prevent belt tearing. (Refer to...) Figure 1 The shutdown protection device to prevent belt tearing includes a receiving tray 2. In this embodiment, the receiving tray 2 is arranged in the middle of the belt 1. The receiving tray 2 can be flexibly set between the return and upper layers of the belt 1 without affecting the normal operation of the belt 1. It is suitable for belt 1 conveying systems of different specifications and layouts.

[0035] Reference Figure 1 and Figure 2 The top of the receiving tray 2 has a funnel-shaped structure that is wider at the top and narrower at the bottom. The funnel opening expands the material receiving range. Even if there is a slight deviation at the damaged position of the belt 1, the leaked material can be accurately guided into the receiving tray 2, avoiding spillage to the equipment below and causing secondary damage.

[0036] Reference Figure 1 and Figure 3 The bottom of the receiving tray 2 is equipped with a base plate 21, and the receiving tray 2 is fixedly connected to the base plate 21. L-shaped plates 22 are installed on both sides of the base plate 21, and fixing bolts 7 are installed between the L-shaped plates 22 and the base plate 21 for connection. The fixing bolts 7 are used to improve the stability of the connection and ensure that the L-shaped plates 22 and the base plate 21 can remain tightly fitted without the risk of loosening when subjected to complex working conditions such as material leakage impact and equipment vibration. At the same time, the bolt connection method has the characteristics of convenient disassembly and assembly and reusability.

[0037] Reference Figure 1 and Figure 3 Each of the L-shaped plates 22 has an outer plate 3 installed at its bottom for connection with an external structure. A support mechanism 4 and a triggering mechanism 5 are provided between the L-shaped plate 22 and the corresponding outer plate 3. At the same time, a blocking mechanism 8 for interception sensing is installed above the receiving tray 2. The two ends of the blocking mechanism 8 are respectively arranged on the two L-shaped plates 22. The blocking mechanism 8 itself can be equipped with a micro switch or a sensor switch. The blocking mechanism 8 forms a preliminary protection against material leakage. Through physical interception, the blocking mechanism 8 can block large pieces of material or sharp foreign objects splashed from the damaged part of the belt 1 in advance. An emergency stop signal is immediately triggered by mechanical collision or pressure sensing.

[0038] Reference Figure 3 In this embodiment, there are two sets of support mechanisms 4 between the L-shaped plate 22 and the corresponding outer plate 3. The four sets of support mechanisms 4 are symmetrically arranged on the four sides of the receiving plate 2. The symmetrical layout makes the weight of the leaked material on the receiving plate 2 and the bottom plate 21 evenly distributed to the four support points, effectively avoiding structural load imbalance and overturning problems that may be caused by single-sided or double-sided support, and ensuring the horizontal stability of the receiving plate 2 in the process of receiving leaked material.

[0039] Reference Figure 3 and Figure 4 The support mechanism 4 includes a T-shaped plate 41, a spring 42, and a bottom cylinder 43. The T-shaped plate 41 is fixedly connected to the bottom of the L-shaped plate 22, and the bottom cylinder 43 is fixedly connected to the top of the outer plate 3. The bottom cylinder 43 has a hollow structure inside and an open top. The protrusion of the T-shaped plate 41 extends into the bottom cylinder 43. The spring 42 is sleeved on the protrusion of the T-shaped plate 41. The upper end of the spring 42 contacts the T-shaped plate 41, and the lower end of the spring 42 is located inside the bottom cylinder 43. In this embodiment, the spring 42 may be equipped with a corresponding damper.

[0040] Reference Figure 3 In this embodiment, the number of triggering mechanisms 5 between the L-shaped plate 22 and the corresponding outer plate 3 can be single or multiple. The triggering mechanism 5 includes a pressure table 51 and a trigger switch 52. The pressure table 51 is vertically connected to the bottom of the L-shaped plate 22, and the trigger switch 52 is connected to the top of the outer plate 3. The pressure table 51 is arranged above the trigger switch 52 and the two maintain a gap. At the same time, the trigger switch 52 is a contact type switch. The moving contact of the trigger switch 52 is located at the bottom of the pressure table 51, and the stationary contact of the trigger switch 52 is located on the housing of the trigger switch 52. The stationary contact is connected to the moving contact through a pin. The contact type trigger switch 52 realizes a sensitive and reliable stop triggering mechanism. When the material leakage in the receiving tray 2 accumulates and the L-shaped plate 22 is pressed down, the pressure table 51 moves down to contact the trigger switch 52, and the moving contact and the stationary contact close instantly. The control circuit is quickly connected through the pin, and a stop signal is immediately sent to the belt 1 control system, which effectively avoids the expansion of belt 1 tearing caused by signal delay.

[0041] Reference Figure 3 Multiple sets of holes and slots 23 are opened through the middle of both the L-shaped plate 22 and the outer plate 3. A sliding rod 6 is installed between the L-shaped plate 22 and the outer plate 3 to pass through the corresponding holes and slots 23. In this embodiment, the sliding rod 6 has a U-shaped structure. The U-shaped opening of the sliding rod 6 is arranged in the same direction. The two sides of the U-shaped structure form a double-point support, which effectively disperses the stress generated by the impact of the leaking material, avoids structural deformation caused by the force of a single rod, and extends the service life.

[0042] Reference Figure 3Meanwhile, the top of the slide rod 6 is formed with a threaded part, and a locking bolt 61 is installed on the top of the slide rod 6 to cooperate with the threaded part. The locking bolt 61 is used to fix it to the L-shaped plate 22. The setting of the hole groove 23 and the locking bolt 61 forms a stable guiding mechanism, ensuring the precise guidance of the vertical movement of the two, so that the triggering mechanism 5 is always in the best working position and improving the triggering accuracy.

[0043] The implementation principle of the shutdown protection device for preventing belt 1 tearing in this embodiment of the application is as follows: When belt 1 abnormally leaks material, the leaked material will fall onto the receiving tray 2 arranged in the middle of belt 1. Since the receiving tray 2 is located in a suitable position directly below belt 1, it can promptly receive the material leaking from the damaged part of belt 1. As the leakage in the receiving tray 2 continues to increase, the weight of the material borne by the receiving tray 2 and its bottom plate 21 gradually increases. The increased weight results in a downward force. After the L-shaped plate 22 is subjected to the downward force, it will compress the support mechanism 4 downward. The T-shaped plate 41 will move downward along the bottom cylinder 43, and the spring 42 will... As the T-shaped plate 41 moves downward, it is compressed, providing a certain buffer time for the subsequent action of the triggering mechanism 5. As the L-shaped plate 22 continues to move downward, the pressure table 51 also moves downward. As the L-shaped plate 22 moves downward, the gap between the pressure table 51 and the trigger switch 52 gradually decreases until the leakage of material in the receiving tray 2 reaches a certain amount. When the L-shaped plate 22 descends to a certain extent, the pressure table 51 will contact the trigger switch 52 and apply pressure to it. The trigger switch 52 is triggered after being subjected to pressure. After the trigger switch 52 is triggered, it will send a stop signal to the belt 1 control system to stop the machine in time.

[0044] By setting up the receiving tray 2, support mechanism 4 and triggering mechanism 5, efficient protection of belt 1 is achieved. It can promptly receive material leakage caused by wear, scratches and other abnormalities, reduce the possibility of material spillage damaging the equipment or causing secondary failures, and can also interrupt the operation of belt 1 in time to prevent tearing from spreading. This significantly reduces the maintenance costs and production downtime losses caused by serious failure of belt 1, ensures the continuity of production and improves the stability of production.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A shutdown protection device to prevent belt tearing, characterized in that: The system includes a receiving tray located in the middle of the belt conveyor. A base plate is provided at the bottom of the receiving tray, and L-shaped plates are provided on both sides of the base plate. Each L-shaped plate has an outer plate at its bottom for connection to an external structure. A support mechanism is provided between the L-shaped plate and the corresponding outer plate. The support mechanism includes a T-shaped plate, a spring, and a bottom cylinder. The T-shaped plate is connected to the bottom of the L-shaped plate, and the bottom cylinder is connected to the top of the outer plate. The protrusion of the T-shaped plate extends into the bottom cylinder. The spring is sleeved on the protrusion of the T-shaped plate, with its upper end in contact with the T-shaped plate and its lower end located inside the bottom cylinder. A triggering mechanism is also provided between the L-shaped plate and the corresponding outer plate. The triggering mechanism includes a pressure table and a trigger switch. The pressure table is vertically connected to the bottom of the L-shaped plate, and the trigger switch is connected to the top of the outer plate. The pressure table is positioned above the trigger switch, and the two maintain a gap.

2. The shutdown protection device for preventing belt tearing according to claim 1, characterized in that: The top of the receiving tray has a funnel-shaped structure that is wider at the top and narrower at the bottom.

3. The shutdown protection device for preventing belt tearing according to claim 1, characterized in that: Multiple sets of holes and slots are opened through the middle of both the L-shaped plate and the outer plate. A sliding rod is provided between the L-shaped plate and the outer plate for passing through the corresponding holes and slots. A locking bolt is provided at the top of the sliding rod for fixing it to the L-shaped plate.

4. A shutdown protection device for preventing belt tearing according to claim 3, characterized in that: The slide bar has a U-shaped structure, and the top end of the slide bar has a threaded portion for engaging with the locking bolt.

5. A shutdown protection device for preventing belt tearing according to claim 1, characterized in that: The trigger switch is a contact-type switch. The moving contact of the trigger switch is located at the bottom of the pressure table, and the stationary contact of the trigger switch is located on the trigger switch housing. The stationary contact is connected to the moving contact through a pin.

6. A shutdown protection device for preventing belt tearing according to claim 1, characterized in that: The number of support mechanisms between the L-shaped plate and the corresponding outer plate is two sets, and the four sets of support mechanisms are arranged symmetrically at the four corners.

7. A shutdown protection device for preventing belt tearing according to claim 1, characterized in that: A fixing bolt is provided between the L-shaped plate and the base plate for connection.

8. A shutdown protection device for preventing belt tearing according to claim 1, characterized in that: The receiving tray is equipped with a blocking mechanism for intercepting induction, with its two ends arranged on two L-shaped plates respectively.

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