Deviation-correcting power-off disengaging mechanism

Abstract

The utility model relates to a deviation rectification power-off disengaging mechanism which is applied to the field of deviation rectification of a conveying belt and comprises a self-aligning swing frame rotationally connected to a rack, a driving device used for driving the self-aligning swing frame to rotate is arranged on the rack, and the output end of the driving device is connected with the self-aligning swing frame through a disconnecting device when powered on. And the disconnecting device is used for disconnecting the driving device and the aligning swing frame during power failure. The deviation rectifying system has the technical effects that when the deviation rectifying system is suddenly powered off, the disconnecting device is started to disconnect the driving device and the aligning swing frame, so that power output by the driving device is difficult to transmit to the aligning swing frame, timely disconnection during power failure is realized, and then the running trend of the aligning carrier roller is only influenced by friction force of a conveying belt and gradually tends to be balanced; the possibility that the deviation rectifying system is stuck and the conveying belt is mistakenly rectified under the power failure condition is reduced, and the running safety of the belt conveyor and the deviation rectifying system is improved.

Description

Technical Field

[0001] This application relates to the technical field of conveyor belt deviation correction, and particularly to a deviation correction power-off disconnection mechanism. Background Art

[0002] A belt conveyor is a machine that uses friction drive to continuously transport materials, mainly composed of a frame, a conveyor belt, idlers, drums, a tensioning device, a transmission device, etc. It can form a material transportation process for materials on a certain conveyor line from the initial feeding point to the final discharging point.

[0003] Under multi-segment long-distance transportation, the conveyor belt of a belt conveyor will deviate from the idlers. The intelligent deviation correction system is a new type of deviation correction solution, which can make timely and effective deviation correction actions according to the real-time deviation amount and deviation correction plan of the conveyor belt. The intelligent deviation correction system includes a centering swing frame arranged at the output end of the driving mechanism. The centering idler is installed on the top of the centering swing frame to support and drive the conveyor belt. When the driving mechanism is started, the centering swing frame at the output end of the driving mechanism rotates, thereby driving the centering idler to rotate clockwise and counterclockwise. The conveyor belt is corrected and returned based on the deflection generated by the centering idler, so that the conveyor belt always operates within a reasonable range.

[0004] When the intelligent deviation correction system suddenly loses power, the system will stop running and cannot make correct deviation correction actions in time, resulting in problems such as difficulty in disconnecting, jamming, and even incorrect deviation correction of the intelligent deviation correction system, affecting the safety of operation. Summary of the Invention

[0005] In order to help solve the problem that in the related technology, when the deviation correction system suddenly loses power, it is difficult to disconnect in time, resulting in jamming and even incorrect deviation correction of the deviation correction system, a deviation correction power-off disconnection mechanism provided by this application adopts the following technical solutions: It includes a centering swing frame rotatably connected to the frame. A driving device for driving the centering swing frame to rotate is provided on the frame. The output end of the driving device is connected to the centering swing frame through a disconnection device when powered on, and the disconnection device is used to disconnect the connection between the driving device and the centering swing frame when powered off.

[0006] In a specific feasible embodiment, the driving device includes a driving motor arranged on the frame. A speed reducer is provided at the output end of the driving motor, and the output end of the speed reducer is connected to the centering swing frame through a disconnection device when powered on.

[0007] In a specific feasible embodiment, the disconnection device includes a connection component, a disconnection component, and a stabilization component. The output end of the driving device is connected to the disconnection component through the connection component. The disconnection component is used to disconnect the connection between the connection component and the centering swing frame when powered off, and the stabilization component is used to keep the centering swing frame stable when powered off.

[0008] In a specific feasible implementation, the connection component includes a driving arm disposed at the output end of the driving device, and one end of the driving arm away from the driving device is connected to the disconnection component.

[0009] In a specific feasible implementation, the stabilizing component includes a driven shaft disposed on the self-aligning swing frame. When powered on, the driven shaft is connected to the driving arm through the disconnection component. A driven arm is provided on the driven shaft, and a support frame is provided on the machine frame. The driven arm is rotatably connected to the support frame.

[0010] In a specific feasible implementation, the disconnection component includes a resetter disposed on the connection component. An active rotating sleeve is provided at the output end of the resetter. A connection groove is formed on the surface of the active rotating sleeve facing the self-aligning swing frame. Two arc-shaped through grooves communicating with the connection groove are oppositely formed on the surface of the active rotating sleeve facing the self-aligning swing frame. An arc-shaped platform matching the connection groove is provided on the surface of the driven shaft facing the active rotating sleeve. The arc-shaped platform is partially inserted into the connection groove. When powered on, the two arc-shaped through grooves are respectively located on both sides of the swinging direction of the driving arm and the arc-shaped platform contacts the groove wall of the connection groove. When powered off, the active rotating sleeve rotates under the drive of the resetter, so that the two arc-shaped through grooves are both located in the swinging direction of the driving arm and the arc-shaped platform does not contact the active rotating sleeve.

[0011] In a specific feasible implementation, a placement groove is formed at the bottom of the connection groove. A sensor is provided in the placement groove. An induction platform matching the sensor is provided on the surface of the arc-shaped platform facing the active rotating sleeve. If power is restored after power-off, the resetter drives the active rotating sleeve to rotate when the induction platform corresponds to the sensor, so that the two arc-shaped through grooves are respectively located on both sides of the swinging direction of the driving arm and the arc-shaped platform contacts the groove wall of the connection groove.

[0012] In a specific feasible implementation, a support rotating shaft is provided on the driven arm. One end of the support rotating shaft facing the support frame is rotatably connected to the support frame.

[0013] In a specific feasible implementation, an installation hole is formed on the support frame. A support rotating sleeve is provided on the hole wall of the installation hole. The support rotating shaft is connected to the inner wall of the support rotating sleeve through a bearing.

[0014] In a specific feasible implementation, the support rotating shaft is coaxially arranged with the output end of the driving device.

[0015] In summary, the present application has at least the following beneficial technical effects: When the deviation rectification system is powered on, the driving device is started to drive the centering swing frame to rotate through the disconnection device, thereby driving the entire centering idler to rotate clockwise and counterclockwise to correct the deviation of the conveyor belt; When the deviation rectification system suddenly loses power, the disconnection device is started to disconnect the connection between the driving device and the centering swing frame, making it difficult for the power output by the driving device to be transmitted to the centering swing frame, realizing timely disconnection during power failure. Subsequently, the running trend of the centering idler is only affected by the friction force of the conveyor belt and gradually tends to balance, reducing the possibility of the deviation rectification system getting stuck and the conveyor belt being mis-corrected during power failure, and improving the safety of the belt conveyor and the deviation rectification system during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 is a schematic diagram for embodying the structure of the arc-shaped table in an embodiment of the present application.

[0018] Figure 3 is a schematic diagram of the application scenario of an embodiment of the present application.

[0019] Figure 4 is a schematic cross-sectional view for embodying the induction table in an embodiment of the present application.

[0020] Figure 5 is a schematic diagram for embodying the structure of the connection groove in an embodiment of the present application.

[0021] Figure 6 is a schematic diagram of the structure in the powered-on state of an embodiment of the present application.

[0022] Figure 7 is a schematic diagram of the structure in the power-off state of an embodiment of the present application.

[0023] Reference numerals: 1, frame; 2, centering swing frame; 3, drive motor; 4, reducer; 5, connection component; 6, disconnection component; 7, stabilizing component; 8, active arm; 9, driven shaft; 10, driven arm; 11, support frame; 12, resetter; 13, active rotating sleeve; 14, connection groove; 15, arc-shaped through groove; 16, arc-shaped table; 17, placement groove; 18, sensor; 19, induction table; 20, support rotating shaft; 21, support rotating sleeve; 22, centering idler; 23, bearing; 24, mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further elaborates on the present application Figure 1-7 with reference to the attached drawings.

[0025] An embodiment of the present application discloses a deviation rectification power-off disconnection mechanism.

[0026] Refer toFigure 1 , Figure 2 and Figure 3 , the deviation rectifying power-off disconnection mechanism includes a centering swing frame 2 rotatably connected to the frame 1. A driving device for driving the centering swing frame 2 to rotate is arranged on the frame 1. The output end of the driving device is connected to the centering swing frame 2 through a disconnection device when powered on. The disconnection device is used to disconnect the connection between the driving device and the centering swing frame 2 when powered off. The driving device includes a driving motor 3 arranged on the frame 1. A speed reducer 4 is installed at the output end of the driving motor 3. The output end of the speed reducer 4 is connected to the centering swing frame 2 through a disconnection device when powered on. The speed reducer 4 can effectively reduce the output speed of the driving motor 3 and at the same time increase the output torque, ensuring the smoothness and efficiency of power transmission and facilitating the precise control of the centering swing frame 2.

[0027] Therefore, when the deviation rectifying system is powered on, the driving device is started to drive the centering swing frame 2 to rotate through the disconnection device, thereby driving the entire centering idler 22 to make clockwise and counterclockwise rotational movements to correct the deviation of the conveyor belt. When the deviation rectifying system suddenly loses power, the disconnection device is triggered to disconnect the connection between the driving device and the centering swing frame 2, making it difficult for the power output by the driving device to be transmitted to the centering swing frame 2, realizing the timely disconnection during power-off. Subsequently, the running trend of the centering idler 22 is only affected by the friction force of the conveyor belt and gradually tends to balance, reducing the possibility of the deviation rectifying system getting stuck and the conveyor belt being mis-corrected during power-off, and improving the safety of the operation of the belt conveyor and the deviation rectifying system.

[0028] Referring to Figure 1 and Figure 4 , the disconnection device includes a connection component 5, a disconnection component 6 and a stabilizing component 7. The output end of the driving device is connected to the disconnection component 6 through the connection component 5. The disconnection component 6 is used to disconnect the connection between the connection component 5 and the centering swing frame 2 when powered off. The stabilizing component 7 is used to keep the centering swing frame 2 stable when powered off. The connection component 5 includes a driving arm 8 arranged at the output end of the driving device. One end of the driving arm 8 away from the driving device is connected to the disconnection component 6. Therefore, when the driving device is started to drive the driving arm 8 to rotate, when powered on, the centering swing frame 2 is connected to the driving arm 8 through the disconnection component 6, and the driving arm 8 plays a role in transmitting power to drive the centering swing frame 2 to rotate. In the case of power-off, the disconnection component 6 is used to disconnect the centering swing frame 2 from the driving arm 8, so that the centering swing frame 2 can rotate freely. The stabilizing component 7 provides support for the rotation of the centering swing frame 2, improving the stability of the centering swing frame 2 during movement. Driven by the conveyor belt, the centering idler 22 returns to the normal position.

[0029] Referring to Figure 2 and Figure 4, the stabilizing component 7 includes a driven shaft 9 disposed on the self-aligning swing frame 2. When powered on, the driven shaft 9 is connected to the driving arm 8 through the disconnecting component 6. A driven arm 10 is bolted to the driven shaft 9, and a support frame 11 is bolted to the machine frame 1. A support rotating shaft 20 perpendicular to the driven arm 10 is bolted to the driven arm 10. One end of the support rotating shaft 20 facing the support frame 11 is rotatably connected to the support frame 11. Therefore, in the powered-on state, the driving device drives the driving arm 8 to rotate, and the driving arm 8 drives the driven arm 10 to rotate synchronously through the disconnecting component 6. The driven shaft 9 and the driven arm 10 further enhance the stability of the self-aligning swing frame 2 during movement; in the powered-off state, the disconnecting component 6 disconnects the self-aligning swing frame 2 from the driving arm 8. At this time, the self-aligning swing frame 2 can freely rotate around the support rotating shaft 20, and the driven shaft 9 and the driven arm 10 play a supporting role for the self-aligning swing frame 2, improving the stability of the self-aligning swing frame 2 during movement.

[0030] Referring to Figure 2 and Figure 4 , an installation hole 24 is formed in the support frame 11, and a support rotating sleeve 21 is installed on the hole wall of the installation hole 24. The support rotating shaft 20 is connected to the inner wall of the support rotating sleeve 21 through a bearing 23. In the embodiment of the present application, the support rotating shaft 20 is coaxially arranged with the output end of the driving device, and the driving arm 8 and the driven arm 10 have the same length, with a compact structure, optimizing the use space occupied by the overall mechanism. At the same time, it is convenient for the driven arm 10 and the disconnecting component 6 to be reconnected after power failure and restoration. The bearing 23 can accurately position the position of the support rotating shaft 20, preventing the support rotating shaft 20 from generating excessive axial or radial displacement during rotation, improving the stability of the driven arm 10 during rotation; the bearing 23 can significantly reduce the frictional resistance and wear during the rotation of the support rotating shaft 20, improving the operating efficiency and service life of the system.

[0031] Referring to Figure 5 , Figure 6 and Figure 7, the disconnection component 6 includes a reseter 12 provided on the connection component 5. In the embodiment of the present application, the reseter 12 specifically adopts a two-wire one-control normally open and normally closed power-off reseter 12. The output end of the reseter 12 is connected with a driving sleeve 13. A connection groove 14 is formed on the surface of the driving sleeve 13 facing the centering swing frame 2. Two arc-shaped through grooves 15 communicating with the connection groove 14 are oppositely formed on the surface of the driving sleeve 13 facing the centering swing frame 2. An arc-shaped table 16 matching the size of the connection groove 14 is fixedly connected to the surface of the driven shaft 9 facing the driving sleeve 13. In the embodiment of the present application, the arc-shaped table 16 adopts a waist-shaped structure, and a part of the arc-shaped table 16 is inserted into the connection groove 14; when powered on, the two arc-shaped through grooves 15 are respectively located on both sides of the swinging direction of the driving arm 8 and the arc-shaped table 16 contacts the groove wall of the connection groove 14; when powered off, the driving sleeve 13 rotates under the drive of the reseter 12, so that the two arc-shaped through grooves 15 are both located in the swinging direction of the driving arm 8 and the arc-shaped table 16 does not contact the driving sleeve 13.

[0032] Therefore, when the deviation rectifying system suddenly loses power, the reseter 12 is triggered. The reseter 12 drives the driving sleeve 13 at the output end to rotate 90 degrees, so that the two arc-shaped through grooves 15 are both located in the swinging direction of the driving arm 8 and the arc-shaped table 16 does not contact the driving sleeve 13, disconnecting the connection between the driving arm 8 and the driven shaft 9, making it difficult for the power output by the driving device to be transmitted to the centering swing frame 2, realizing timely disconnection during power-off. Subsequently, the running trend of the centering idler 22 is only affected by the friction force of the conveyor belt and gradually tends to be balanced, reducing the possibility of the deviation rectifying system getting stuck and the conveyor belt being mis-corrected under power-off conditions, and improving the operation safety of the belt conveyor and the deviation rectifying system.

[0033] Refer to Figure 5 , Figure 6 and Figure 7 , a placement groove 17 is formed at the bottom of the connection groove 14. A sensor 18 is installed in the placement groove 17. An induction table 19 matching the sensor 18 is connected to the surface of the arc-shaped table 16 facing the driving sleeve 13. In the embodiment of the present application, the sensor 18 is entirely located in the placement groove 17, reducing the possibility of interference between the sensor 18 and the induction table 19; if power is restored after power-off, the reseter 12 drives the driving sleeve 13 to rotate when the induction table 19 corresponds to the sensor 18, so that the two arc-shaped through grooves 15 are respectively located on both sides of the swinging direction of the driving arm 8 and the arc-shaped table 16 contacts the groove wall of the connection groove 14. In the embodiment of the present application, the sensor 18 specifically adopts a metal detection sensor 18, and the induction table 19 is made of a metal material corresponding to the metal detection sensor 18.

[0034] Therefore, when power is restored after a power outage, the drive device is activated to drive the rotation of the active arm 8. When the metal detection sensor 18 on the active arm 8 moves below the induction table 19, and the metal detection sensor 18 detects the approach of the induction table 19 made of a metal material, the sensor 18 emits a signal to drive the resetter 12 to start. The resetter 12 drives the active rotating sleeve 13 to rotate 90 degrees, so that the two arc-shaped through slots 15 are respectively located on both sides of the swinging direction of the active arm 8 and the arc-shaped platform 16 contacts the groove wall of the connecting slot 14, thus restoring to the state under normal power-on conditions. The active arm 8 is connected to the centering swing frame 2.

[0035] In addition, the deviation rectifying power-off disconnection mechanism of the present application utilizes a stable transmission structure and sensing and control technologies, enabling the intelligent deviation rectifying system to have the power-off disconnection function, and solving the problem that the intelligent deviation rectifying system cannot be disconnected during a power outage, resulting in the conveyor belt being misaligned or even wrongly aligned. The deviation rectifying power-off disconnection mechanism of the present application has a compact structure, convenient control, safety and reliability, and low cost.

[0036] The implementation principle of the embodiment of the present application is as follows: Under normal power-on conditions, the drive motor 3 is started, and the power is output by the speed reducer 4 to drive the rotation of the active arm 8. At this time, the two arc-shaped through slots 15 are respectively located on both sides of the swinging direction of the active arm 8 and the arc-shaped platform 16 contacts the groove wall of the connecting slot 14. The active arm 8 drives the driven arm 10 and the driven shaft 9 to move synchronously, thereby driving the centering swing frame 2 to rotate, and then driving the entire centering idler 22 to rotate clockwise and counterclockwise to correct the deviation of the conveyor belt.

[0037] In the case of an emergency power outage, the resetter 12 is triggered. The resetter 12 drives the active rotating sleeve 13 at the output end to rotate 90 degrees, so that the two arc-shaped through slots 15 are both located in the swinging direction of the active arm 8 and the arc-shaped platform 16 does not contact the active rotating sleeve 13, disconnecting the connection between the active arm 8 and the driven shaft 9, making it difficult for the power output by the drive device to be transmitted to the centering swing frame 2, realizing timely disconnection during a power outage. Subsequently, the running trend of the centering idler 22 is only affected by the friction force of the conveyor belt and gradually tends to balance, reducing the possibility of the deviation rectifying system getting stuck and the conveyor belt being wrongly aligned during a power outage, and improving the safety of the operation of the belt conveyor and the deviation rectifying system.

[0038] After a power failure fault recovery, the deviation correction power-off disengaging mechanism of the present application still has an automatic reset function. The driving device is started to drive the active arm 8 to slowly rotate. When the metal detection sensor 18 on the active arm 8 moves below the induction table 19, the metal detection sensor 18 timely detects the approach of the induction table 19 made of a metal material, and the sensor 18 sends a signal to drive the resetter 12 to start. The resetter 12 drives the active rotating sleeve 13 to rotate 90 degrees, so that the two arc-shaped through grooves 15 are respectively located on both sides of the swinging direction of the active arm 8 and the arc-shaped table 16 contacts the groove wall of the connecting groove 14, thereby restoring to the state under normal power-on conditions. The active arm 8 can continue to drive the driven arm 10 and the driven shaft 9 to move synchronously, so as to drive the centering swing frame 2 to rotate and continue to correct the deviation of the conveyor belt.

[0039] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A deviation-correcting power-off disengaging mechanism, characterized in that: The invention comprises a self-aligning pendulum frame (2) rotatably connected to a frame (1); the frame (1) is provided with a driving device for driving the self-aligning pendulum frame (2) to rotate; the output end of the driving device is connected to the self-aligning pendulum frame (2) through a disconnecting device when power is on; the disconnecting device is used to disconnect the connection between the driving device and the self-aligning pendulum frame (2) when power is off.

2. The deviation-correcting power-off disengaging mechanism according to claim 1 is characterized in that: The driving device comprises a driving motor (3) arranged on a frame (1); a reducer (4) is provided at the output end of the driving motor (3); and the output end of the reducer (4) is connected to the self-aligning swing frame (2) through a disconnecting device when power is supplied.

3. The deviation-correcting power-off disengaging mechanism according to claim 1 is characterized in that: The disconnecting device comprises a connecting component (5), a disconnecting component (6) and a stabilizing component (7); the output end of the driving device is connected to the disconnecting component (6) via the connecting component (5); the disconnecting component (6) is used to disconnect the connection between the connecting component (5) and the self-aligning pendulum frame (2) when power is off; and the stabilizing component (7) is used to maintain the stability of the self-aligning pendulum frame (2) when power is off.

4. The deviation-correcting power-off disengaging mechanism according to claim 3 is characterized in that: The connecting component (5) comprises an active arm (8) arranged at the output end of the driving device, and an end of the active arm (8) away from the driving device is connected to the disconnecting component (6).

5. The deviation-correcting power-off disengaging mechanism according to claim 4 is characterized in that: The stabilizing component (7) comprises a driven shaft (9) arranged on the self-aligning swing frame (2); the driven shaft (9) is connected to the active arm (8) through a disconnecting component (6) when power is turned on; a driven arm (10) is arranged on the driven shaft (9); a support frame (11) is arranged on the frame (1); and the driven arm (10) is rotatably connected to the support frame (11).

6. The deviation-correcting power-off disengaging mechanism according to claim 5, characterized in that: The disconnection component (6) comprises a resetter (12) arranged on the connection component (5), an active rotating sleeve (13) is provided at the output end of the resetter (12), a connecting groove (14) is provided on the surface of the active rotating sleeve (13) facing the self-aligning swing frame (2), two arc-shaped through grooves (15) communicating with the connecting groove (14) are also provided on the surface of the active rotating sleeve (13) facing the self-aligning swing frame (2), and the driven shaft (9) is provided with a connecting groove (14) on the surface facing the active rotating sleeve (13). ) is provided with an arc-shaped platform (16) matching the active arm (8), and the arc-shaped platform (16) is partially inserted in the connecting groove (14); when power is on, the two arc-shaped through grooves (15) are respectively located on both sides of the swing direction of the active arm (8) and the arc-shaped platform (16) is in contact with the groove wall of the connecting groove (14); when power is off, the active rotating sleeve (13) rotates under the drive of the resetter (12), so that the two arc-shaped through grooves (15) are both located in the swing direction of the active arm (8) and the arc-shaped platform (16) is not in contact with the active rotating sleeve (13).

7. The deviation-correcting power-off disengaging mechanism according to claim 6 is characterized in that: The bottom of the connecting groove (14) is provided with a placement groove (17), a sensor (18) is arranged in the placement groove (17), and a sensing platform (19) matching with the sensor (18) is arranged on the surface of the arc-shaped platform (16) facing the active rotating sleeve (13); if the power is turned on again after power failure, the resetter (12) drives the active rotating sleeve (13) to rotate when the sensing platform (19) corresponds to the sensor (18), so that the two arc-shaped through grooves (15) are respectively located on both sides of the swing direction of the active arm (8) and the arc-shaped platform (16) contacts the groove wall of the connecting groove (14).

8. The deviation-correcting power-off disengaging mechanism according to claim 5, characterized in that: The driven arm (10) is provided with a supporting shaft (20), and one end of the supporting shaft (20) facing the supporting frame (11) is rotatably connected to the supporting frame (11).

9. The deviation-correcting power-off disengaging mechanism according to claim 8, characterized in that: The support frame (11) is provided with a mounting hole (24), a supporting rotating sleeve (21) is provided on the hole wall of the mounting hole (24), and the supporting rotating shaft (20) is connected to the inner wall of the supporting rotating sleeve (21) via a bearing (23).

10. The deviation-correcting power-off disengaging mechanism according to claim 8, characterized in that: The supporting rotating shaft (20) is coaxially arranged with the output end of the driving device.

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