Anti-tearing device for belt grinding rod conveying mechanism

Abstract

The utility model discloses a kind of special anti-tearing device of belt type grinding rod conveying mechanism, belong to steel slag processing magnetic separation line equipment technical field, the belt type grinding rod conveying mechanism includes the belt below the discharge port of rod mill, driving wheel that drives belt movement, the controller of the working state of control driving wheel;Anti-tearing device includes emergency stop switch and pull rope, emergency stop switch and the I / O terminal of controller are connected;Emergency stop switch includes first emergency stop switch and second emergency stop switch, one end of the pull rope is connected with first emergency stop switch, the other end of the pull rope is connected with second emergency stop switch, first emergency stop switch is located at the left side of belt discharge port, second emergency stop switch is located at the right side of belt discharge port;The height of first emergency stop switch and second emergency stop switch is D, the height of belt upper surface material is d, D is greater than d, wherein, the difference of D and d is greater than or equal to one third of broken rod length and less than or equal to one half of broken rod length.

Description

Technical Field

[0001] This utility model belongs to the technical field of magnetic separation equipment for steel slag treatment, and particularly relates to a special anti-tear device for belt-type grinding rod conveying mechanism. Background Technology

[0002] As is well known, rod mills are the main equipment for secondary treatment of steel slag. During long-term use, the grinding rods gradually wear down and thin due to continuous friction, resulting in a significant decrease in bending strength. If not replaced in time, they are highly susceptible to breakage under the centrifugal force of high-speed rotation. When a rod mill breaks during operation, the broken rod length is usually less than the diameter of the mill. During rapid rotation, the broken rod will be thrown and slide out of the feed inlet. Because the grinding rod forms sharp ends in the later stages of wear, the high-speed impact of the broken rod on the belt surface can easily scratch the belt fiber layer, causing deep tears or penetrating damage, leading to belt system failure and severely affecting production continuity and efficiency.

[0003] like Figure 1 As shown, the original belt tear prevention device needs to be installed 10-15 meters below the material drop point (facing the machine head when driven). The tear prevention device is placed between the upper and lower belts, and is symmetrically fixed on the belt conveyor support near the upper belt. This position can effectively capture tears caused by impact at the material drop point or penetration by foreign objects. After the belt tears, the device that caused the tear will activate the pull rope, which will trigger the belt tear prevention device to stop the belt, thus stopping the belt and preventing the tear from spreading. Utility Model Content

[0004] This utility model proposes a special anti-tear device for belt-type grinding bar conveying mechanism. The emergency stop switch and pull rope are installed above the belt discharge port, which can detect broken bars in time and shut down the belt conveying mechanism to avoid tearing of the belt of the next process caused by the broken bars.

[0005] To achieve the above technical objectives, the purpose of this utility model is to provide a special anti-tear device for a belt-type grinding rod conveyor mechanism. The belt-type grinding rod conveyor mechanism includes a belt located below the discharge port of the rod mill, a drive wheel that drives the belt, and a controller that controls the working state of the drive wheel. The anti-tear device includes an emergency stop switch and a pull rope. The emergency stop switch is connected to the I / O terminal of the controller. The emergency stop switch includes a first emergency stop switch and a second emergency stop switch. One end of the pull rope is connected to the first emergency stop switch, and the other end of the pull rope is connected to the second emergency stop switch. The first emergency stop switch is located on the left side of the belt discharge port, and the second emergency stop switch is located on the right side of the belt discharge port. The height of both the first and second emergency stop switches is D, and the height of the material on the upper surface of the belt is d. D is greater than d, wherein the difference between D and d is greater than or equal to one-third of the broken rod length and less than or equal to one-half of the broken rod length.

[0006] Preferably, the length of the pull rope is equal to the distance between the first emergency stop switch and the second emergency stop switch.

[0007] Preferably, the first emergency stop switch is connected to the frame of the belt grinding rod conveyor via a first upright, and the second emergency stop switch is connected to the frame of the belt grinding rod conveyor via a second upright.

[0008] Preferably, a first set of mounting holes is formed on the first upright, the first set of mounting holes including threaded holes of different heights, and the first emergency stop switch is connected to the first upright through the threaded holes; a second set of mounting holes is formed on the second upright, the second set of mounting holes including threaded holes of different heights, and the second emergency stop switch is connected to the second upright through the threaded holes.

[0009] Preferably, the drive pulley is located at the discharge end of the belt.

[0010] Preferably, the pull rope is located directly above the drive wheel.

[0011] Preferred, .

[0012] Preferred, .

[0013] Preferably, the pull rope is perpendicular to the direction of movement of the belt.

[0014] Preferably, a receiving hopper is provided outside the discharge port of the belt.

[0015] The advantages and positive effects of this utility model are as follows: This invention rationally positions the emergency stop switch and pull rope above the conveyor belt discharge port, achieving automatic triggering protection through the mechanical linkage between the pull rope and the emergency stop switch. When a broken bar falls from the discharge port, it will first impact or pull the pull rope. Upon receiving the external force, the pull rope immediately transmits the tension to the emergency stop switch. The emergency stop switch, upon sensing the pulling signal, responds quickly by sending an emergency stop command to the controller in the control system. Upon receiving the signal, the controller immediately cuts off the power supply to the conveyor belt, stopping the conveyor mechanism. This design significantly improves the detection and response speed to broken bar anomalies, effectively preventing broken bars from entering the downstream conveyor section and causing tearing, jamming, or damage to the belt, thereby ensuring continuous and stable equipment operation and reducing maintenance costs and the risk of production interruption.

[0016] This invention, by setting multiple threaded holes of different heights on the first and second uprights, allows workers to flexibly adjust the installation height of the emergency stop switch and pull rope according to the actual material cutting length requirements, thereby effectively adapting to the processing conditions of materials of different specifications and improving the safety and ease of operation of the equipment. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the solutions in the prior art, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a structural diagram of traditional technology.

[0019] Figure 2 This is a structural diagram of a selected embodiment of the present utility model.

[0020] Figure 3 This is a schematic diagram of a selected embodiment of the present invention.

[0021] The components include: 1. belt; 2. emergency stop switch; 3. pull rope; 4. drive wheel; 5. receiving hopper; and 6. slender iron material. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are only some examples of the present utility model, and not all examples. Obviously, the embodiments of the present utility model shown in the accompanying drawings demonstrate characteristic technical solutions. Based on the embodiments of the present utility model, any other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 2 and Figure 3 : A special anti-tear device for a belt-type grinding rod conveyor mainly includes: an emergency stop switch 2 and a pull rope 3; wherein: The belt mill rod conveying mechanism includes a belt 1 located below the discharge port of the rod mill, a drive wheel 4 that drives the belt 1, and a controller that controls the working state of the drive wheel 4. Similar to conventional technology, the anti-tear device includes an emergency stop switch 2 and a pull cord 3. The emergency stop switch 2 is connected to the I / O terminal of the controller. The emergency stop switch 2 includes a first emergency stop switch and a second emergency stop switch. One end of the pull cord 3 is connected to the first emergency stop switch, and the other end of the pull cord 3 is connected to the second emergency stop switch. Since the above is prior art, the model and connection relationship of the emergency stop switch and the controller are also prior art and will not be described here.

[0024] Unlike traditional technologies, the first emergency stop switch is located on the left side of the discharge port of belt 1, and the second emergency stop switch is located on the right side of the discharge port of belt 1. The height of both the first and second emergency stop switches is D, and the height of the material on the upper surface of belt 1 is d, where D is greater than d. The difference between D and d is greater than or equal to one-third of the bar length and less than or equal to one-half of the broken bar length.

[0025] Working Principle: In this embodiment, the emergency stop switch and pull rope are strategically positioned above the conveyor belt outlet. Automatic triggering protection is achieved through the mechanical linkage between the pull rope and the emergency stop switch. The emergency stop switch typically employs a normally closed contact structure, while the pull rope runs through both sides of the outlet, maintaining moderate tension to form a transverse trigger sensing area. When the broken bar falls from the outlet, it first impacts or pulls the pull rope. Upon receiving the external force, the pull rope immediately transmits the tension to the emergency stop switch. Sensing the pulling signal, the emergency stop switch responds rapidly, triggering its internal mechanism to switch the electrical contact state, thereby sending an emergency stop command to the controller in the control system. Upon receiving the signal, the controller immediately cuts off the power supply to the conveyor belt, stopping its operation. This design is simple in structure, reliable in response, and significantly improves the detection and response speed to broken bar anomalies. It can complete the entire triggering and braking process in a short time, effectively preventing the broken bar from entering the downstream conveyor section and causing tearing, jamming, or damage to the belt. This not only ensures the continuous and stable operation of the entire conveyor system, reducing unexpected downtime and maintenance costs, but also lowers the risk of production interruption and safety hazards caused by belt damage.

[0026] To further understand the technical concept of this utility model, the following is a non-limiting description: In this embodiment, the broken rod is a slender iron piece 6; The length of the pull rope 3 is equal to the distance between the first emergency stop switch and the second emergency stop switch. The pull rope 3 needs to be kept under moderate tension. If it is too long, the middle position of the pull rope 3 will form a downward arc under the action of gravity, and may touch the material at any time.

[0027] The first emergency stop switch is connected to the frame of the belt grinding rod conveyor via a first upright, and the second emergency stop switch is connected to the frame of the belt grinding rod conveyor via a second upright.

[0028] A first mounting hole group is formed on the first upright, consisting of multiple threaded holes arranged along the height of the upright, with a certain spacing between each threaded hole, covering the height range required for commonly used material cutting lengths. The first emergency stop switch is connected to the threaded holes at the corresponding height on the first upright via matching bolts for secure installation. Similarly, a second mounting hole group is formed on the second upright, with the same structure as the first mounting hole group, also including multiple threaded holes at different heights, for flexible installation of the second emergency stop switch. The second emergency stop switch is reliably fixed at a selected position on the second upright via a threaded connection.

[0029] By setting multiple threaded holes at different heights on the first and second uprights, operators can flexibly select the installation positions of the emergency stop switch and associated pull rope within a wide height range according to the actual material cutting length requirements. This design significantly enhances the equipment's adaptability to processing conditions of materials of different specifications, ensuring that the emergency stop mechanism can be triggered in a timely manner in case of emergencies, improving operational safety, and also simplifying the height adjustment process, thereby improving production efficiency and ease of operation.

[0030] The drive pulley 4 is located at the discharge end of the belt 1.

[0031] The pull rope 3 is located directly above the drive wheel 4.

[0032] In one embodiment, .

[0033] for example, .

[0034] The pull rope 3 is perpendicular to the direction of movement of the belt 1.

[0035] A receiving hopper 5 is provided outside the discharge port of the belt 1 to collect broken bars and prevent them from entering the conveyor belt of the next process.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A special anti-tearing device for a belt abrasive rod conveying mechanism, the belt abrasive rod conveying mechanism comprising a belt (1) located below a discharge port of a rod mill, a driving wheel (4) driving the belt (1) to move, and a controller controlling the working state of the driving wheel (4); the anti-tearing device comprises an emergency stop switch (2) and a pull rope (3), and the emergency stop switch (2) is connected with an I / O terminal of the controller; characterized in that, The emergency stop switch (2) includes a first emergency stop switch and a second emergency stop switch. One end of the pull rope (3) is connected to the first emergency stop switch, and the other end of the pull rope (3) is connected to the second emergency stop switch. The first emergency stop switch is located on the left side of the discharge port of the belt (1), and the second emergency stop switch is located on the right side of the discharge port of the belt (1). The height of the first emergency stop switch and the second emergency stop switch is D. The height of the material on the upper surface of the belt (1) is d. D is greater than d. The difference between D and d is greater than or equal to one-third of the length of the broken bar and less than or equal to one-half of the length of the broken bar.

2. The anti-tear device for a belt sander bar conveyor mechanism according to claim 1, characterized in that, The length of the pull rope (3) is equal to the distance between the first emergency stop switch and the second emergency stop switch.

3. The anti-tear device for a belt sander bar conveyor mechanism of claim 1, wherein, The first emergency stop switch is connected to the frame of the belt grinding rod conveyor via a first upright, and the second emergency stop switch is connected to the frame of the belt grinding rod conveyor via a second upright.

4. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 3, characterized in that, A first set of mounting holes is formed on the first upright, the first set of mounting holes including threaded holes of different heights, and a first emergency stop switch is connected to the first upright through the threaded holes; a second set of mounting holes is formed on the second upright, the second set of mounting holes including threaded holes of different heights, and a second emergency stop switch is connected to the second upright through the threaded holes.

5. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 1, characterized in that, The drive wheel (4) is located at the discharge end of the belt (1).

6. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 4, characterized in that, The pull rope (3) is located directly above the drive wheel (4).

7. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 1, characterized in that, 。 8. The anti-tear device for belt grinding rod conveying mechanism according to claim 1 or 7, characterized in that, 。 9. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 1, characterized in that, The direction of movement of the pull rope (3) is perpendicular to that of the belt (1).

10. The anti-tear device for belt-type grinding rod conveying mechanism according to claim 1, characterized in that, A receiving hopper (5) is provided outside the discharge port of the belt (1).

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