Limiting structure of movable hopper

Abstract

The utility model relates to the technical field of movable hopper equipment, in particular to a movable hopper limiting structure which comprises a movable frame body and a movable hopper, the movable hopper is arranged on the movable frame body in a sliding mode, and a driving assembly for driving the movable hopper to slide is arranged on the movable frame body. A limiting assembly used for fixing the material receiving position of the movable hopper is arranged on the movable frame body, the limiting assembly comprises a positioning plate arranged on the movable hopper, a proximity switch electrically connected to the control system is arranged on the movable frame body, the sensing end of the proximity switch points to the positioning plate, and a locking piece is arranged on the movable frame body and used for fixing the positioning plate. The device has the effects of stable feedback in-place signal and automatic resetting of the material receiving position of the movable hopper.

Description

Technical Field

[0001] The present application relates to the technical field of mobile hopper equipment, and in particular to a limiting structure of a mobile hopper. Background Art

[0002] During material handling and transportation at ports, bulk cargo requires a mobile hopper. The typical mobile hopper workflow is as follows: A ship unloader or bucket wheel excavator first moves the bulk cargo through the equipment's rotating and luffing mechanisms to the top of the designated unloading area, where it then falls into the mobile hopper. The material then flows through a conveyor belt beneath the mobile hopper, completing the entire loading and unloading process.

[0003] In the process of the mobile hopper receiving bulk cargo, whether the mobile hopper can accurately move to the vicinity of the discharge port of the bucket wheel excavator is the key to the operation of the entire system. The current common solution is to set a normally open contact and a normally closed contact on the mobile hopper, and set a contact block at the position where the mobile hopper receives the material. The moving position of the mobile hopper is controlled by the contact between the contact block and the contact.

[0004] However, when the mobile hopper is receiving bulk cargo, the bulk cargo will impact the mobile hopper, causing the contact block on the mobile hopper to separate from the contact point, causing the mobile hopper to lose the arrival signal, which will cause the bucket wheel excavator and the ground belt to stop working. In severe cases, it may cause the mobile hopper to be blocked or the conveyor belt to be crushed, which is a deficiency. Utility Model Content

[0005] In order to improve the problem that the mobile hopper is shaken due to the impact of goods, causing the contacts to separate and resulting in the mobile hopper losing the position signal, the present application provides a limiting structure for the mobile hopper.

[0006] The present application provides a movable hopper limiting structure adopting the following technical solutions:

[0007] A limiting structure for a mobile hopper includes a mobile frame and a mobile hopper, the mobile hopper is slidably arranged on the mobile frame, the mobile frame is provided with a driving component for driving the mobile hopper to slide, the mobile frame is provided with a limiting component for fixing the material receiving position of the mobile hopper, the limiting component includes a positioning plate arranged on the mobile hopper, the mobile frame is provided with a proximity switch electrically connected to a control system, the sensing end of the proximity switch points to the positioning plate, and the mobile frame is provided with a locking member, which is used to fix the positioning plate.

[0008] By adopting the above technical solution, the driving component drives the mobile hopper to move on the mobile frame, and the positioning plate on the mobile hopper is close to the proximity switch. The proximity switch feeds back the moving position of the mobile hopper to the control system until the mobile hopper moves to the material receiving position. The locking member fixes the positioning plate, thereby fixing the mobile hopper to realize the material receiving process. The positioning plate will not directly contact the proximity switch, and the positioning plate will always trigger the proximity switch, so that the mobile hopper always feeds back the position signal, reducing the possibility of the bucket wheel excavator and the ground belt stopping working.

[0009] Optionally, the driving assembly includes a guide rail arranged on the mobile frame, a roller is rotatably arranged on the mobile hopper, the roller rolls with the guide rail, a driving motor is provided on the mobile hopper to drive the roller to rotate, and the driving motor is electrically connected to the control system.

[0010] By adopting the above technical solution, the control system starts the drive motor, and the output shaft of the drive motor drives the roller to rotate. The roller moves the mobile hopper along the length direction of the guide rail through the friction between the roller and the guide rail, so that the mobile hopper drives the positioning plate close to the proximity switch.

[0011] Optionally, the locking member includes a locking seat arranged on the movable frame, a baffle is rotatably arranged on the locking seat, the baffle is used to collide with the positioning plate, a locking slot is provided on the positioning plate, a locking plate is provided on the baffle, a pin is slidably provided on the locking seat, a pin slot for the pin to be inserted into the baffle, when the positioning plate hits the baffle and causes the baffle to rotate, the locking plate is rotated and inserted into the locking slot on the positioning plate, and the edge of the locking slot of the positioning plate is used to abut against the locking plate.

[0012] By adopting the above technical solution, when the positioning plate triggers the proximity switch, the control system controls the drive motor to delay and stop power supply, and the mobile hopper will drive the positioning plate to continue to approach the proximity switch until the positioning plate hits the baffle. At this time, the drive motor stops powering the device, and under the action of inertia, the positioning plate pushes the baffle to rotate. At the same time, the positioning plate will drive the locking plate to rotate synchronously and gradually insert into the locking groove on the positioning plate. As the positioning plate continues to move, the edge of the locking groove on the positioning plate will gradually abut against the locking plate, and at this time, the pin shaft is pushed and the pin shaft is inserted into the pin groove on the baffle to fix the baffle, thereby fixing the position of the positioning plate, and then fixing the position of the mobile hopper, which is beneficial to reduce the possibility of accidental movement of the mobile hopper.

[0013] Optionally, the locking seat is provided with an electric cylinder electrically connected to the control system, and a sleeve is coaxially provided on the piston rod of the electric cylinder, and a cylindrical groove is provided on the sleeve for the sliding of the pin shaft, and a micro-compression spring is supported between the pin shaft and the cylindrical groove, and a guide cone block is provided at the end of the pin shaft facing away from the sleeve, and the diameter of the guide cone block gradually decreases along the direction from the sleeve to the pin shaft, and the conical surface of the guide cone block is used to abut and slide with the edge of the baffle.

[0014] By adopting the above technical solution, when the edge of the locking groove on the positioning plate gradually abuts against the locking plate, the edge of the baffle will gradually abut against the conical surface of the guide cone block, and the guide cone block squeezes the micro-motion compression spring through the pin shaft, and the micro-motion compression spring is deformed until the guide cone block is inserted into the pin groove on the baffle, and the micro-motion compression spring restores its deformation. When it is necessary to release the lock of the baffle, the control system starts the electric cylinder, the piston rod of the electric cylinder contracts and drives the sleeve and the pin shaft away from the baffle until the guide cone block is separated from the baffle.

[0015] Optionally, a torsion spring is provided between the baffle and the locking seat.

[0016] By adopting the above technical solution, when the baffle is unlocked, the control system starts the drive motor, and the drive motor drives the positioning plate on the mobile hopper through the roller to push the locking plate to rotate. The locking plate gradually rotates out of the locking groove on the positioning plate, and at the same time the torsion spring will drive the baffle to gradually reset.

[0017] Optionally, anti-slip plates are provided at both ends of the guide rail in the length direction.

[0018] By adopting the above technical solution, the possibility of the mobile hopper being separated from the guide rail is reduced.

[0019] Optionally, a sensing plate is provided on the positioning plate, the proximity switch is provided on the locking seat, the sensing end of the proximity switch points to the sensing plate, a guide rod is slidingly provided on the locking seat, a buffer plate is provided on the guide rod, a buffer compression spring is supported between the buffer plate and the locking seat, and the buffer plate is used to abut against the sensing plate.

[0020] By adopting the above technical solution, the positioning plate drives the sensing plate to gradually approach the proximity switch. When the locking plate rotates and inserts into the locking notch on the positioning plate, the sensing plate will gradually hit the buffer plate. The buffer plate drives the guide rod to slide, squeezing the buffer spring, and the buffer spring is deformed. When the pin shaft is inserted into the pin groove on the baffle, the locking plate abuts against the edge of the locking notch on the positioning plate. At the same time, the buffer spring presses the buffer plate against the sensing plate. When the mobile hopper moves due to shaking, the buffer spring can push the sensing plate to automatically reset.

[0021] Optionally, a buffer layer is provided on the buffer plate, and the buffer layer is used to abut against the sensing plate.

[0022] By adopting the above technical solution, the hard collision between the buffer plate and the sensor plate is reduced, which is beneficial to improving the service life of the buffer plate and the sensor plate.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The driving assembly drives the mobile hopper to move on the mobile frame. The positioning plate on the mobile hopper approaches the proximity switch. The proximity switch feeds back the moving position of the mobile hopper to the control system until the mobile hopper moves to the material receiving position. The locking member fixes the positioning plate, thereby fixing the mobile hopper to achieve the material receiving process. The positioning plate will not directly contact the proximity switch, and the positioning plate will always trigger the proximity switch, so that the mobile hopper always feeds back the position signal, reducing the possibility of the bucket wheel excavator and the ground belt stopping.

[0025] 2. When the positioning plate triggers the proximity switch, the control system controls the drive motor to delay and stop power supply. The mobile hopper will drive the positioning plate to continue to approach the proximity switch until the positioning plate hits the baffle. At this time, the drive motor stops powering, and under the action of inertia, the positioning plate pushes the baffle to rotate. At the same time, the positioning plate drives the locking plate to rotate synchronously and gradually insert into the locking notch on the positioning plate. As the positioning plate continues to move, the edge of the locking notch on the positioning plate will gradually abut against the locking plate, pushing the pin shaft at this time. The pin shaft is inserted into the pin groove on the baffle to fix the baffle, thereby fixing the position of the positioning plate and the position of the mobile hopper, which is conducive to reducing the possibility of accidental movement of the mobile hopper.

[0026] 3. As the positioning plate drives the sensing plate to gradually approach the proximity switch, when the locking plate rotates and inserts into the locking notch on the positioning plate, the sensing plate will gradually hit the buffer plate. The buffer plate drives the guide rod to slide and squeezes the buffer spring, which causes the buffer spring to deform. When the pin shaft is inserted into the pin groove on the baffle, the locking plate abuts against the edge of the locking notch on the positioning plate. At the same time, the buffer spring presses the buffer plate against the sensing plate. When the mobile hopper moves due to shaking, the buffer spring can push the sensing plate to automatically reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 yes Figure 1 Magnified view of part B.

[0030] Figure 4 It is a cross-sectional view used to reflect the positional relationship among the electric cylinder, sleeve and proximity switch in the embodiment of the present application.

[0031] Explanation of the accompanying drawings: 1. Moving frame; 2. Moving hopper; 3. Driving assembly; 31. Guide rail; 32. Roller; 33. Driving motor; 4. Limiting assembly; 41. Positioning plate; 42. Proximity switch; 43. Locking piece; 431. Locking seat; 432. Baffle; 433. Locking notch; 434. Locking plate; 435. Pin shaft; 436. Pin groove; 5. Electric cylinder; 6. Sleeve; 7. Cylinder groove; 8. Micro-motion compression spring; 9. Guide cone block; 10. Torsion spring; 11. Anti-slip plate; 12. Induction plate; 13. Guide rod; 14. Buffer plate; 15. Buffer compression spring; 16. Buffer layer; 17. Sliding wheel; 18. Reducer. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] An embodiment of the present application discloses a limiting structure for a mobile hopper.

[0034] Reference Figure 1 A limiting structure of a mobile hopper includes a mobile frame 1 and a mobile hopper 2. The mobile hopper 2 is slidingly arranged on the mobile frame 1. The bottom of the mobile frame 1 is rotatably connected to a sliding wheel 17. A driving component 3 for driving the mobile hopper 2 to slide is arranged on the mobile frame 1.

[0035] Reference Figure 1 and Figure 2 The driving assembly 3 includes a guide rail 31 welded to the mobile frame 1, and anti-slip plates 11 are welded at both ends of the guide rail 31 in the length direction. A roller 32 is rotatably connected to the mobile hopper 2, and the roller 32 rolls with the guide rail 31. A driving motor 33 electrically connected to the control system is bolted to the mobile hopper 2. The driving motor 33 can adopt the forward and reverse motor in the existing technology. A reduction gear 18 for transmitting torque is arranged between the output shaft of the driving motor 33 and the roller 32.

[0036] Reference Figure 2 、 Figure 3 and Figure 4 A limiting assembly 4 for fixing the material receiving position of the mobile hopper 2 is arranged on the mobile frame 1. The limiting assembly 4 includes a horizontal positioning plate 41 welded on the mobile hopper 2, and a vertical sensing plate 12 is welded on the positioning plate 41. A proximity switch 42 electrically connected to the control system is arranged on the mobile frame 1, and the sensing end of the proximity switch 42 points to the sensing plate 12. A locking member 43 is arranged on the mobile frame 1, and the locking member 43 is used to fix the positioning plate 41.

[0037] The control system starts the drive motor 33, and the output shaft of the drive motor 33 drives the roller 32 to rotate forward through the reduction gear box 18. The friction between the roller 32 and the guide rail 31 causes the mobile hopper 2 to slide along the length direction of the guide rail 31. The mobile hopper 2 drives the induction plate 12 to gradually approach the proximity switch 42 through the positioning plate 41. The induction plate 12 triggers the sensing end of the proximity switch 42, and the proximity switch 42 feeds back the signal to the control system. The control system controls the drive motor 33 to delay power off, and the drive motor 33 continues to drive the roller 32 to rotate.

[0038] Reference Figure 2 、 Figure 3 and Figure 4 The locking member 43 includes a locking seat 431 welded to the movable frame 1, a baffle 432 is rotatably connected to the locking seat 431, a torsion spring 10 is arranged between the baffle 432 and the locking seat 431, the proximity switch 42 is bolted to the locking seat 431, a guide rod 13 is slidably arranged on the locking seat 431, a buffer plate 14 is welded on the guide rod 13, a buffer layer 16 is bolted to the buffer plate 14, the buffer layer 16 is used to abut against the sensing plate 12, a buffer compression spring 15 is supported between the buffer plate 14 and the locking seat 431, and the buffer plate 14 is used to abut against the sensing plate 12.

[0039] Reference Figure 2 、 Figure 3 and Figure 4 The baffle 432 is used to collide with the positioning plate 41. A locking groove 433 is provided on the positioning plate 41. A locking plate 434 is welded on the baffle 432. A pin shaft 435 is slidably arranged on the locking seat 431. A pin groove 436 for the pin shaft 435 to be inserted is provided on the baffle 432. When the positioning plate 41 hits the baffle 432 and causes the baffle 432 to rotate, the locking plate 434 rotates and is inserted into the locking groove 433 on the positioning plate 41. The edge of the locking groove 433 of the positioning plate 41 is used to abut against the locking plate 434.

[0040] Reference Figure 2 、 Figure 3 and Figure 4 The locking seat 431 is bolted with an electric cylinder 5 electrically connected to the control system, and a sleeve 6 is coaxially welded on the piston rod of the electric cylinder 5. The sleeve 6 is provided with a cylinder groove 7 for the sliding of the pin shaft 435. A micro-compression spring 8 is supported between the pin shaft 435 and the cylinder groove 7. A guide cone block 9 is welded on the end of the pin shaft 435 facing away from the sleeve 6. The diameter of the guide cone block 9 gradually decreases along the direction from the sleeve 6 to the pin shaft 435. The conical surface of the guide cone block 9 is used to abut and slide with the edge of the baffle 432.

[0041] Until the positioning plate 41 hits the baffle 432, the drive motor 33 is powered off, and the mobile hopper 2 continues to drive the positioning plate 41 to push the baffle 432 under the action of inertia. The baffle 432 drives the locking plate 434 to rotate around the rotation center of the baffle 432, and the torsion spring 10 is deformed until the locking plate 434 rotates and inserts into the locking groove 433 on the positioning plate 41. During this process, the induction plate 12 hits the buffer layer 16 on the buffer plate 14, and the buffer plate 14 drives the guide rod 13 to slide and squeeze the buffer compression spring 15, and the buffer compression spring 15 is deformed.

[0042] The baffle 432 rotates and squeezes the conical surface of the guide cone block 9 through its edges. The guide cone block 9 squeezes the fine-motion compression spring 8 through the pin shaft 435. The fine-motion compression spring 8 is deformed until the guide cone block 9 slides to the pin groove 436 on the baffle 432. At this time, the fine-motion compression spring 8 recovers its deformation and presses the guide cone block 9 against the pin groove 436 on the baffle 432 through the pin shaft 435. At this time, the locking plate 434 abuts against the edge of the locking groove 433 on the locking plate 434. At the same time, the buffer compression spring 15 presses the buffer plate 14 against the induction plate 12. When the moving hopper 2 drives the positioning plate 41 to shake, the buffer compression spring 15 gradually restores the positioning plate 41 to its position through the buffer plate 14 and the induction plate 12.

[0043] When the mobile hopper 2 needs to move in the opposite direction, the control system starts the electric cylinder 5, the piston rod of the electric cylinder 5 contracts and drives the sleeve 6 and the pin shaft 435 to move back toward the baffle 432 until the guide cone block 9 disengages from the pin groove 436 on the baffle 432, and then the control system starts the output shaft of the drive motor 33 to rotate in the opposite direction, the buffer compression spring 15 gradually recovers its deformation, and at the same time the torsion spring 10 drives the baffle 432 to reset.

[0044] The implementation principle of the limiting structure of a mobile hopper in an embodiment of the present application is as follows: the control system starts the driving motor 33, and the output shaft of the driving motor 33 drives the roller 32 to rotate forward through the reduction gear box 18. The friction between the roller 32 and the guide rail 31 causes the mobile hopper 2 to slide along the length direction of the guide rail 31. The mobile hopper 2 drives the induction plate 12 to gradually approach the proximity switch 42 through the positioning plate 41. The induction plate 12 triggers the sensing end of the proximity switch 42, and the proximity switch 42 feeds back the signal to the control system. The control system controls the driving motor 33 to delay power off, and the driving motor 33 continues to drive the roller 32 to rotate.

[0045] Until the positioning plate 41 hits the baffle 432, the drive motor 33 is powered off, and the mobile hopper 2 continues to drive the positioning plate 41 to push the baffle 432 under the action of inertia. The baffle 432 drives the locking plate 434 to rotate around the rotation center of the baffle 432, and the torsion spring 10 is deformed until the locking plate 434 rotates and inserts into the locking groove 433 on the positioning plate 41. During this process, the induction plate 12 hits the buffer layer 16 on the buffer plate 14, and the buffer plate 14 drives the guide rod 13 to slide and squeeze the buffer compression spring 15, and the buffer compression spring 15 is deformed.

[0046] The baffle 432 rotates and squeezes the conical surface of the guide cone block 9 through its edges. The guide cone block 9 squeezes the fine-motion compression spring 8 through the pin shaft 435. The fine-motion compression spring 8 is deformed until the guide cone block 9 slides to the pin groove 436 on the baffle 432. At this time, the fine-motion compression spring 8 recovers its deformation and presses the guide cone block 9 against the pin groove 436 on the baffle 432 through the pin shaft 435. At this time, the locking plate 434 abuts against the edge of the locking groove 433 on the locking plate 434. At the same time, the buffer compression spring 15 presses the buffer plate 14 against the induction plate 12. When the moving hopper 2 drives the positioning plate 41 to shake, the buffer compression spring 15 gradually restores the positioning plate 41 to its position through the buffer plate 14 and the induction plate 12.

[0047] When the mobile hopper 2 needs to move in the opposite direction, the control system starts the electric cylinder 5, the piston rod of the electric cylinder 5 contracts and drives the sleeve 6 and the pin shaft 435 to move back toward the baffle 432 until the guide cone block 9 disengages from the pin groove 436 on the baffle 432, and then the control system starts the output shaft of the drive motor 33 to rotate in the opposite direction, the buffer compression spring 15 gradually recovers its deformation, and at the same time the torsion spring 10 drives the baffle 432 to reset.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A limiting structure for a mobile hopper, characterized in that: The invention comprises a movable frame (1) and a movable hopper (2), wherein the movable hopper (2) is slidably arranged on the movable frame (1), and a driving component (3) for driving the movable hopper (2) to slide is arranged on the movable frame (1), and a limiting component (4) for fixing the material receiving position of the movable hopper (2) is arranged on the movable frame (1), and the limiting component (4) includes a positioning plate (41) arranged on the movable hopper (2), and a proximity switch (42) electrically connected to a control system is arranged on the movable frame (1), and the sensing end of the proximity switch (42) points to the positioning plate (41), and a locking member (43) is arranged on the movable frame (1), and the locking member (43) is used to fix the positioning plate (41).

2. A limiting structure for a mobile hopper according to claim 1, characterized in that: The driving assembly (3) includes a guide rail (31) arranged on the mobile frame (1); a roller (32) is rotatably arranged on the mobile hopper (2); the roller (32) and the guide rail (31) are in rolling engagement; a driving motor (33) is arranged on the mobile hopper (2) for driving the roller (32) to rotate; and the driving motor (33) is electrically connected to a control system.

3. The limiting structure of a mobile hopper according to claim 1, characterized in that: The locking member (43) includes a locking seat (431) provided on the movable frame (1); a baffle (432) is rotatably provided on the locking seat (431); the baffle (432) is used to collide with the positioning plate (41); a locking notch (433) is provided on the positioning plate (41); a locking plate (434) is provided on the baffle (432); a pin (435) is slidably provided on the locking seat (431); ), a pin groove (436) for the pin shaft (435) to be inserted into the baffle (432) is provided on the baffle (432), and when the positioning plate (41) hits the baffle (432) and causes the baffle (432) to rotate, the locking plate (434) rotates and is inserted into the locking notch (433) on the positioning plate (41), and the edge of the locking notch (433) of the positioning plate (41) is used to abut against the locking plate (434).

4. The limiting structure of a mobile hopper according to claim 3, characterized in that: The locking seat (431) is provided with an electric cylinder (5) electrically connected to the control system, a sleeve (6) is coaxially provided on the piston rod of the electric cylinder (5), a cylindrical groove (7) for the sliding of the pin shaft (435) is provided on the sleeve (6), a micro-movement compression spring (8) is supported between the pin shaft (435) and the cylindrical groove (7), a guide cone block (9) is provided at one end of the pin shaft (435) facing away from the sleeve (6), the diameter of the guide cone block (9) gradually decreases along the direction from the sleeve (6) to the pin shaft (435), and the conical surface of the guide cone block (9) is used to abut and slide with the edge of the baffle (432).

5. The limiting structure of a mobile hopper according to claim 3, characterized in that: A torsion spring (10) is provided between the baffle (432) and the locking seat (431).

6. The limiting structure of a mobile hopper according to claim 2, characterized in that: Anti-slip plates (11) are provided at both ends of the guide rail (31) in the length direction.

7. The limiting structure of a mobile hopper according to claim 3, characterized in that: The positioning plate (41) is provided with a sensing plate (12), the proximity switch (42) is provided on the locking seat (431), the sensing end of the proximity switch (42) points to the sensing plate (12), a guide rod (13) is slidably provided on the locking seat (431), a buffer plate (14) is provided on the guide rod (13), a buffer compression spring (15) is supported between the buffer plate (14) and the locking seat (431), and the buffer plate (14) is used to abut against the sensing plate (12).

8. The limiting structure of a mobile hopper according to claim 7, characterized in that: A buffer layer (16) is provided on the buffer plate (14), and the buffer layer (16) is used for abutting against the induction plate (12).

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