Conveyor belt with anti-stall and reverse stop function

Abstract

The present invention relates to the technical field of conveyor belt material transportation, and provides a conveyor belt with an anti-stalling check function, comprising a conveyor belt body, a driving roller, a redirecting roller, a controller, a position limiter, a check mechanism, and a check baffle; a plurality of check baffles are evenly arranged along the circumference of the end face of the redirecting roller; the position limiter comprises a connecting rod, a limit rod, and a limit switch, and the limit switch is arranged on the side of the limit rod; the check mechanism comprises a fixed column, a cylindrical pin, and a check rod, the head end of the check rod is fixed in the middle of the cylindrical pin, the check rod is located between the limit rod and the redirecting roller, and the contact point between the tail end of the check rod and the end face of the redirecting roller is located between adjacent check baffles in the circumferential direction; the controller is electrically connected to the limit switch, the speed sensor on the motor output shaft of the driving roller, and the motor of the driving roller. The present invention can realize the timely reverse and reverse stop of the conveyor belt and the stop of the material transportation of the previous process, avoid the accumulation of materials at the tail of the conveyor belt, and has a simple structure and is easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belt material transportation, in particular to a conveyor belt with an anti-stall and non-return function. Background Art

[0002] As a material conveying equipment, conveyor belts have been widely used in various industries, and various conveying methods such as rubber belt conveyors and roller conveyors have also been maturely used. During the use of these conveyor belts, if the conveyor belts have a certain inclination and are running with load, once the power source disappears, the conveyor belt will reverse due to gravity; if the power source disappears due to a failure of the transmission coupling or reducer, it may cause the belt motor to run normally but the previous process interlocking protection does not work in time, causing materials to accumulate at the tail of the conveyor belt, affecting normal operation. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a conveyor belt with an anti-stall and reverse stop function, which can realize the timely reverse and reverse stop of the conveyor belt and the stop of the material transportation of the previous process, avoiding the accumulation of materials at the tail of the conveyor belt. It has a simple structure, is easy to use, energy-saving and reliable, and has low manpower and material costs.

[0004] The technical solution of the present invention is:

[0005] A conveyor belt with an anti-stall and non-return function, characterized in that it comprises a conveyor belt body, a transmission roller, a redirecting roller (1), a controller, a position limiter (2), a non-return mechanism (4), and a plurality of non-return baffles (5); the conveyor belt body is sleeved on the transmission roller and the redirecting roller (1); two brackets (6) are symmetrically arranged at both ends of the redirecting roller (1); the brackets (6) include a vertical rod (6-1) and a horizontal rod (6-2) connected to the vertical rod (6-1); each of the horizontal rods (6-2) is provided with a bearing seat (3) at the top end, and a bearing is arranged in the bearing seat (3); the rotating shaft of the redirecting roller (1) is rotatably connected in the corresponding bearings at both ends;

[0006] A plurality of the check baffles (5) are evenly and fixedly arranged along the circumference of one end surface of the redirecting roller (1); the position limiter (2) comprises a connecting rod (2-1), a limit rod (2-2), and a limit switch; the head end of the connecting rod (2-1) is fixed to a vertical rod (6-1) on the same side as the check baffle (5); the tail end of the connecting rod (2-1) is fixedly connected to the head end of the limit rod (2-2); and the limit switch is arranged on the side of the limit rod (2-2); the check mechanism (4) comprises two fixed columns (4-1), a cylindrical pin (4-2), and a check rod (4-3); each of the fixed columns (4-1) is fixed to a vertical rod (6-1) on the same side as the check baffle (5); the tail end of the connecting rod (2-1) is fixedly connected to the head end of the limit rod (2-2); and the limit switch is arranged on the side of the limit rod (2-2); 1) are provided with pin holes along the axis, the two fixing columns (4-1) are fixed on the inner side of the bearing seat (3) on the same side as the check baffle plate (5) and the top end of the horizontal rod (6-2), the two pin holes are coaxial, the two ends of the cylindrical pin (4-2) respectively pass through the two pin holes, the head end of the check rod (4-3) is fixed in the middle of the cylindrical pin (4-2), the check rod (4-3) is located between the limit rod (2-2) and the redirecting roller (1), the tail end of the check rod (4-3) contacts the end face of the redirecting roller (1) provided with the check baffle plate (5), and the contact point is located between two adjacent check baffle plates (5) in the circumferential direction;

[0007] The motor of the transmission roller is provided with a rotation speed sensor on the output shaft, and the controller is electrically connected to the limit switch, the rotation speed sensor and the input end of the motor of the transmission roller.

[0008] Furthermore, the angle between the linear velocity direction of the redirecting roller (1) at the contact point and the axis of the check rod (4-3) is an obtuse angle, and the check rod (4-3) is directly opposite to the limit switch.

[0009] Furthermore, the check baffle (5) is in the shape of a rectangular parallelepiped, and the center line of the check baffle (5) is aligned with the center of the circle of the end surface of the one end of the redirecting roller (1).

[0010] Furthermore, the controller is electrically connected to the input end of the motor of the drive roller in the conveyor belt of the previous process material transport.

[0011] Furthermore, the speed sensor is used to measure the speed of the motor of the transmission roller and transmit the measured speed data to the controller; the limit switch is used to send a collision signal to the controller when the check rod (4-3) moves toward the limit rod (2-2) under the action of the check baffle (5) and hits the limit switch during the forward rotation of the redirecting roller (1); the controller is used to reset the time when the collision signal is received, and send a stop signal to the motor of the transmission roller in the material conveying of the current process and the motor of the transmission roller in the material conveying of the previous process when the speed of the motor of the transmission roller is not 0 and the time for not receiving the collision signal reaches a preset time threshold, so as to control the motor of the current process and the previous process to stop.

[0012] The beneficial effects of the present invention are:

[0013] (1) The present invention provides a controller, a position limiter, a check rod, and a check baffle. When the conveyor belt loses its power source and reverses due to the inclination angle and load, the interaction between the check rod and the check baffle can be used to stop the reverse operation of the roller in time. When the conveyor belt motor is running normally but the conveyor belt stops due to a coupling or a reducer failure and the previous process interlocking protection only performs the motor tripping interlocking protection, the interaction between the position limiter and the check rod can be used to stop the material conveying in time, realize the anti-stall check function, avoid the accumulation of materials at the tail of the conveyor belt, and ensure the safe and stable operation of the conveyor belt.

[0014] (2) The present invention has a simple structure, is easy to use, is energy-saving and reliable, and has low manpower and material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a partial structural schematic diagram of a conveyor belt with anti-stall and non-return function according to the present invention.

[0016] In the figure, 1 is a redirection roller, 2 is a position limiter, 2-1 is a connecting rod, 2-2 is a limit rod, 3 is a bearing seat, 4 is a check mechanism, 4-1 is a fixed column, 4-2 is a cylindrical pin, 4-3 is a check rod, 5 is a check baffle, 6 is a bracket, 6-1 is a vertical rod, and 6-2 is a horizontal rod. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figure 1 As shown, the conveyor belt with anti-stall and reverse stop function of the present invention comprises a conveyor belt body ( Figure 1 Not shown), transmission roller ( Figure 1 Not shown), redirection roller 1, controller ( Figure 1), a position limiter 2, a check mechanism 4, and a plurality of check baffles 5. The conveyor belt body is sleeved on the drive roller and the redirecting roller 1; two brackets 6 are symmetrically arranged at both ends of the redirecting roller 1, and the bracket 6 includes a vertical rod 6-1 and a horizontal rod 6-2 connected to the vertical rod 6-1. Each of the horizontal rods 6-2 is provided with a bearing seat 3 at the top, and a bearing ( Figure 1 The rotating shaft of the redirecting roller 1 is rotatably connected to corresponding bearings at both ends.

[0019] The plurality of check baffles 5 are evenly and fixedly arranged along the circumference of one end surface of the redirecting roller 1; the position limiter 2 includes a connecting rod 2-1, a limit rod 2-2, a limit switch ( Figure 1 (not shown), the head end of the connecting rod 2-1 is fixed on the vertical rod 6-1 on the same side as the check baffle 5, the tail end of the connecting rod 2-1 is fixedly connected to the head end of the limit rod 2-2, and the limit switch is arranged on the side of the limit rod 2-2.

[0020] The check mechanism 4 includes two fixed columns 4-1, a cylindrical pin 4-2, and a check rod 4-3. Each fixed column 4-1 is provided with a pin hole along the axis. The two fixed columns 4-1 are fixed to the inner side of the bearing seat 3 and the top end of the horizontal rod 6-2 on the same side as the check baffle 5. The two pin holes are coaxial. Two pin holes are respectively passed through the two ends of the cylindrical pin 4-2. The head end of the check rod 4-3 is fixed in the middle of the cylindrical pin 4-2. The check rod 4-3 performs a circular motion with the fixed hole as the center through the hole-pin cooperation at the head end.

[0021] The check rod 4-3 is located between the limit rod 2-2 and the redirecting roller 1, and the tail end of the check rod 4-3 contacts the end surface of the redirecting roller 1 provided with the check baffle 5, and the contact point is located between two adjacent check baffles 5 in the circumferential direction. The angle between the linear velocity direction of the redirecting roller 1 at the contact point and the axis of the check rod 4-3 is an obtuse angle, and the check rod 4-3 is directly opposite to the limit switch. The linear velocity direction is the linear velocity direction of the redirecting roller 1 when it is in normal operation.

[0022] The motor of the transmission roller is provided with a speed sensor on the output shaft, and the controller is electrically connected to the limit switch, the speed sensor, and the input end of the motor of the transmission roller. In this embodiment, the rotating shaft of the transmission roller is sequentially connected to the low-speed coupling, the reducer, the high-speed coupling, and the motor, and the controller is also electrically connected to the input end of the motor of the transmission roller in the conveyor belt of the previous process material transportation.

[0023] In this embodiment, the check plate 5 is in the shape of a cuboid, the center line of the check plate 5 is aligned with the center of the circle of the one end surface of the redirecting roller 1 , and the check plate 5 is welded to the redirecting roller 1 .

[0024] The speed sensor is used to measure the speed of the motor of the transmission roller and transmit the measured speed data to the controller; the limit switch is used to send a collision signal to the controller when the check rod 4-3 moves toward the limit rod 2-2 under the action of the check baffle 5 and hits the limit switch during the forward rotation of the redirecting roller 1; the controller is used to reset the time when the collision signal is received, and send a stop signal to the motor of the transmission roller in the current material conveying process and the motor of the transmission roller in the previous material conveying process when the motor speed of the transmission roller is not 0 and the time without receiving the collision signal reaches a preset time threshold, so as to control the motor of the current process and the previous process to stop.

[0025] The working principle of the present invention is described below in conjunction with the accompanying drawings:

[0026] During the operation of the conveyor belt, when the conveyor belt rotates forward, the redirecting roller 1 rotates forward, and the check rod 4-3 moves toward the limit rod 2-2 under the action of the check baffle 5 and hits the limit switch on the limit rod 2-2. Under the reaction force of the limit rod 2-2, the check rod 4-3 moves toward the end face of the redirecting roller 1, and so on. The limit switch sends an impact signal to the controller every time it is hit, and the speed sensor measures the speed of the motor of the transmission roller and transmits the measured speed data to the controller. As the check rod 4-3 reciprocates between the limit switch and the check baffle 5, the check rod 4-3 periodically hits the limit switch, and the controller periodically receives the impact signal. When the motor of the conveyor belt is operating normally, that is, the speed is not 0, if the coupling or reducer fails and causes the conveyor belt to lose power and stop running, the limit switch is no longer hit by the check rod 4-3, and the controller no longer receives the impact signal. The controller restarts the timing each time it receives a collision signal. When the motor speed of the transmission roller is not 0 and the time without receiving a collision signal reaches a preset time threshold, the controller sends a stop signal to the motor of the transmission roller in the material conveying of this process and the motor of the transmission roller in the material conveying of the previous process, and controls the motor of the current process and the previous process to stop, thereby avoiding the normal operation of the conveyor belt motor and the failure of the interlocking protection of the previous process to take effect in time, resulting in the accumulation of materials at the tail of the conveyor belt.

[0027] When the conveyor belt has a certain inclination and is running with load, after the power source is lost, the conveyor belt will reverse due to gravity, causing the redirecting roller 1 to reverse with the conveyor belt, and the check rod 4-3 and the check baffle 5 will be stuck in position due to the reverse rotation of the redirecting roller 1, so that the conveyor belt with load stops at the original position.

[0028] It can be seen that the present invention, by setting a controller, a position limiter 2, a check rod 4-3, and a check baffle 5, can utilize the interaction between the check rod 4-3 and the check baffle 5 to achieve timely stopping of the reverse operation of the roller when the conveyor belt loses its power source and reverses due to the inclination angle and load. When the conveyor belt motor is operating normally but the conveyor belt stops due to a coupling or reducer failure and the previous process interlocking protection only performs the motor tripping interlocking protection, the interaction between the position limiter 2 and the check rod 4-3 can be utilized to achieve timely stopping of the material transportation of the previous process, realize the anti-stall check function, avoid the accumulation of materials at the tail of the conveyor belt, and play a vital role in troubleshooting the conveyor belt and resuming operation as soon as possible.

[0029] Obviously, the above embodiments are only some embodiments of the present invention, rather than all embodiments. The above embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention. Based on the above embodiments, all other embodiments obtained by those skilled in the art without making creative work, that is, all modifications, equivalent substitutions and improvements made within the spirit and principles of this application, fall within the protection scope required by the present invention.

Claims

1. A conveyor belt with anti-stall and non-return function, characterized in that: The invention comprises a conveyor belt body, a transmission roller, a redirecting roller (1), a controller, a position limiter (2), a check mechanism (4), and a plurality of check baffles (5); the conveyor belt body is sleeved on the transmission roller and the redirecting roller (1); two brackets (6) are symmetrically arranged at both ends of the redirecting roller (1); the brackets (6) comprise a vertical rod (6-1) and a horizontal rod (6-2) connected to the vertical rod (6-1); each of the horizontal rods (6-2) is provided with a bearing seat (3) at the top end; a bearing is arranged in the bearing seat (3); and the two ends of the rotating shaft of the redirecting roller (1) are rotatably connected in the corresponding bearings respectively; A plurality of the check baffles (5) are evenly and fixedly arranged along the circumference of one end surface of the redirecting roller (1); the position limiter (2) comprises a connecting rod (2-1), a limit rod (2-2), and a limit switch; the head end of the connecting rod (2-1) is fixed to a vertical rod (6-1) on the same side as the check baffle (5); the tail end of the connecting rod (2-1) is fixedly connected to the head end of the limit rod (2-2); and the limit switch is arranged on the side of the limit rod (2-2); the check mechanism (4) comprises two fixed columns (4-1), a cylindrical pin (4-2), and a check rod (4-3); each of the fixed columns (4-1) is fixed to a vertical rod (6-1) on the same side as the check baffle (5); the tail end of the connecting rod (2-1) is fixedly connected to the head end of the limit rod (2-2); and the limit switch is arranged on the side of the limit rod (2-2); 1) are provided with pin holes along the axis, the two fixing columns (4-1) are fixed on the inner side of the bearing seat (3) on the same side as the check baffle plate (5) and the top end of the horizontal rod (6-2), the two pin holes are coaxial, the two ends of the cylindrical pin (4-2) respectively pass through the two pin holes, the head end of the check rod (4-3) is fixed in the middle of the cylindrical pin (4-2), the check rod (4-3) is located between the limit rod (2-2) and the redirecting roller (1), the tail end of the check rod (4-3) contacts the end face of the check baffle plate (5) provided on the redirecting roller (1), and the contact point is located between two adjacent check baffle plates (5) in the circumferential direction; The motor of the transmission roller is provided with a speed sensor on the output shaft, and the controller is electrically connected to the limit switch, the speed sensor, and the input end of the motor of the transmission roller; The speed sensor is used to measure the speed of the motor of the transmission roller and transmit the measured speed data to the controller; the limit switch is used to send a collision signal to the controller when the check rod (4-3) moves towards the limit rod (2-2) under the action of the check baffle (5) and hits the limit switch during the forward rotation of the redirecting roller (1); the controller is used to reset the time when the collision signal is received, and send a stop signal to the motor of the transmission roller in the material conveying of the current process and the motor of the transmission roller in the material conveying of the previous process when the speed of the motor of the transmission roller is not 0 and the time when the collision signal is not received reaches a preset time threshold, so as to control the motor of the current process and the previous process to stop; The angle between the linear velocity direction of the redirecting roller (1) at the contact point and the axis of the check rod (4-3) is an obtuse angle, and the check rod (4-3) is directly opposite to the limit switch.

2. The conveyor belt with anti-stall and non-return function according to claim 1, characterized in that: The check baffle (5) is in the shape of a rectangular parallelepiped, and the center line of the check baffle (5) is aligned with the center of the circle of the one end surface of the redirecting roller (1).

3. The conveyor belt with anti-stall and non-return function according to claim 1, characterized in that: The controller is electrically connected to the input end of the motor of the driving roller in the conveyor belt of the previous process material conveyance.

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