Overload shutdown device for rotary trash remover

Abstract

The utility model relates to the technical field of rotary trash removers, in particular to an overload shutdown device of a rotary trash remover, which comprises a rack rotationally connected with a chain wheel, a base disc mounted on the rack is arranged on one side of the rack, and a plurality of shutdown grooves are circumferentially formed in one side, facing the base disc, of the chain wheel. The base disc is provided with a positioning sleeve relatively perpendicular to the shutdown groove rotating track, a shutdown clamping column facing the shutdown groove rotating track and matched with the shutdown groove is arranged on the positioning sleeve in a guiding and sliding fit mode, and an electromagnetic attraction and repulsion driving mechanism capable of attracting and repulsion the shutdown clamping column is installed on the side, away from the shutdown groove rotating track, of the positioning sleeve. The stop device of the air conditioner further comprises a locking mechanism for locking the stop clamping column in the sucked-back state in the positioning sleeve, the safety performance is high, the situation that stop operation is disordered due to electromagnetic interference during normal operation of equipment is avoided, and energy consumption during standby stop is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rotary cleaning machine technology, specifically to an overload shutdown device for a rotary cleaning machine. Background Technology

[0002] A rotary screen cleaner is a mechanical device used in wastewater treatment or related fields. It primarily uses rotary motion to intercept and remove solid debris from wastewater, achieving solid-liquid separation. It plays a crucial role in wastewater treatment, ensuring the normal operation of the treatment system. The working principle of a rotary screen cleaner mainly includes the following steps: 1. Intercepting floating debris: Floating debris is intercepted by a screen arranged in the inlet pool. 2. Drive unit: The drive unit is installed on the top right side of the screen and drives the driven sprocket to rotate via the output shaft of a reducer. 3. Transmission system: The driven sprocket transmits torque to the drive shaft, which then drives the sprocket to rotate clockwise (from inside the screen to outside) via a traction plate-type roller chain. 4. Scraping rake: The scraping rake, fixed between the traction chains, rotates with the sprocket. The rake teeth on the rake insert into the screen surface, retrievaling the floating debris attached to the screen surface. 5. Unloading action: When the rake teeth pass the top, the debris falls onto the conveyor belt due to its own weight. After passing through the combing device, it is transported into the collection hopper. To prevent the reducer from stopping, and... Due to inertia, the driven sprocket may continue to rotate, and in cases of overload, it may rotate backward. Therefore, when stopping the machine, the sprocket needs to be locked to prevent further rotation. Existing overload shutdown devices for rotary cleaning machines generally use electromagnetic force to lock the ejector pin in a positioning groove on the sprocket, stopping its drive. However, during normal operation, the electromagnetic force needs to be maintained to pull and position the ejector pin. When positioning is required, the electromagnetic force needs to be adjusted to electromagnetic elasticity to eject the ejector pin promptly. Furthermore, electromagnetic interference can easily cause the ejector pin to be ejected, potentially damaging the rotary cleaning machine, resulting in low safety performance. This method also incurs continuous energy loss. Therefore, a rotary cleaning machine overload shutdown device with high safety performance is needed to prevent electromagnetic interference during normal operation from causing shutdown disruptions and to reduce energy consumption during standby shutdowns. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides an overload shutdown device for a rotary cleaning machine, which has high safety performance, avoids the disruption of shutdown operations caused by electromagnetic interference during normal operation, and reduces energy consumption during standby shutdown.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: an overload shutdown device for a rotary cleaning machine, comprising a frame rotatably connected to a sprocket, a base plate mounted on the frame on one side of the frame, a plurality of shutdown slots circumferentially formed on the sprocket facing the base plate, a positioning sleeve perpendicular to the rotation track of the shutdown slots on the base plate, a shutdown locking pin slidably fitted on the positioning sleeve facing the rotation track of the shutdown slots and adapted to the shutdown slots, an electromagnetic repulsion drive mechanism for repelling the shutdown locking pins is installed on the side of the positioning sleeve away from the rotation track of the shutdown slots, and a locking mechanism for locking the shutdown locking pins in the retracted state within the positioning sleeve.

[0007] Preferably, the locking mechanism includes a drive cylinder fixedly mounted on the base plate with its output end facing the positioning sleeve. The output shaft of the drive cylinder is fixedly mounted with a lock seat. The positioning sleeve has a through-lock hole through which the lock seat can pass, and the stop pin has a lock groove adapted to the lock seat.

[0008] Preferably, the positioning sleeves are configured in two sets and symmetrically arranged on one side of the rotating track of the stopping slot, the drive cylinder is configured as a double-headed structure, and the number of the plurality of stopping slots is set to an even number.

[0009] Preferably, the stop pin is provided with a guide groove, and a guide slider integrally formed with the positioning sleeve is slidably fitted in the guide groove.

[0010] Preferably, the electromagnetic attraction and repulsion drive mechanism includes an electromagnetic block fixedly mounted on the positioning sleeve and a magnetic sheet embedded and fixedly mounted in the stop pin. The magnetism of the electromagnetic block can be adjusted between repulsion and attraction with the magnetic sheet.

[0011] Preferably, the base plate is detachably connected to the frame via a connecting seat.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides an overload shutdown device for a rotary cleaning machine, which has the following beneficial effects:

[0014] This rotary screen cleaner's overload shutdown device, through the installation of an electromagnetic repulsion drive mechanism, can instantly push out the shutdown pin and lock it into a shutdown slot that aligns with the screen during overload shutdown, thereby locking the sprocket. When it is necessary to release the overload shutdown, the shutdown pin can be easily pulled back instantly. The locking mechanism allows for easy power disconnection of the electromagnetic repulsion drive mechanism during shutdown and normal operation of the rotary screen cleaner, reducing energy consumption during standby shutdown. It also prevents shutdown operation disruptions caused by electromagnetic interference during normal operation. This rotary screen cleaner's overload shutdown device has high safety performance, preventing shutdown operation disruptions caused by electromagnetic interference during normal operation and reducing energy consumption during standby shutdown. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the present invention from other perspectives;

[0017] Figure 3 This is a schematic diagram showing the disassembled structure of the sprocket and base plate of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the base plate and the stop pin of this utility model.

[0019] Figure 5 This is a structural diagram showing the disassembled assembly of the positioning sleeve, stop pin, and lock seat of this utility model;

[0020] Figure 6 This is a structural schematic diagram of the positioning sleeve, stopping pin, and locking seat of this utility model from other perspectives.

[0021] The following are labels in the attached diagram: 1. Frame; 2. Sprocket; 3. Base plate; 4. Connecting seat; 5. Positioning sleeve; 6. Stop slot; 7. Stop pin; 8. Guide slider; 9. Guide groove; 10. Electromagnetic block; 11. Lock slot; 12. Lock hole; 13. Lock seat; 14. Drive cylinder. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1-6 An overload shutdown device for a rotary cleaning machine includes a frame 1 rotatably connected to a sprocket 2, a base plate 3 mounted on one side of the frame 1, a plurality of shutdown slots 6 circumferentially opened on the sprocket 2 facing the base plate 3, a positioning sleeve 5 perpendicular to the rotation track of the shutdown slots 6 on the base plate 3, a shutdown locking pin 7 slidably fitted on the positioning sleeve 5 facing the rotation track of the shutdown slots 6 and adapted to the shutdown slots 6, an electromagnetic attraction drive mechanism that can attract and repel the shutdown locking pin 7 is installed on the side of the positioning sleeve 5 away from the rotation track of the shutdown slots 6, and a locking mechanism that locks the shutdown locking pin 7 in the position of being attracted back into the positioning sleeve 5.

[0025] Specifically, the locking mechanism includes a drive cylinder 14 fixedly mounted on the base plate 3 with its output end facing the positioning sleeve 5. The output shaft of the drive cylinder 14 is fixedly mounted with a lock seat 13. The positioning sleeve 5 has a through-lock hole 12 through which the lock seat 13 can pass, and the stop pin 7 has a lock groove 11 adapted to the lock seat 13. When the stop pin 7 is pulled back into the positioning sleeve 5 by the electromagnetic attraction and repulsion drive mechanism, the drive cylinder 14 can push the lock seat 13 forward and make the lock seat 13 enter the inside of the lock groove 11 through the through-lock hole 12, thereby locking the stop pin 7 and preventing the electromagnetic attraction and repulsion drive mechanism from malfunctioning and causing random operation in the presence of external electromagnetic interference.

[0026] Specifically, the positioning sleeves 5 are set in two sets and symmetrically arranged on one side of the rotating track of the stopping slot 6, and the drive cylinder 14 is set as a double-headed structure. The number of multiple stopping slots 6 is set to an even number. By setting the positioning sleeves 5 in two sets and the locking mechanism as a double-headed structure, it is convenient to lock the electromagnetic attraction and repulsion drive mechanisms on both sides, providing double insurance for overload shutdown.

[0027] Specifically, the stop pin 7 is provided with a guide groove 9, and a guide slider 8 integrally formed with the positioning sleeve 5 slides in the guide groove 9. Through the cooperation of the guide groove 9 and the guide slider 8, the stop pin 7 is easily guided, increasing the stability of the stop pin 7 in the positioning sleeve 5. Furthermore, the length of the guide groove 9 ensures that when the stop pin 7 is ejected, one end of the stop pin 7 can be inserted into one of the stop slots 6 that has been rotated to the alignment position.

[0028] Specifically, the electromagnetic attraction and repulsion drive mechanism includes an electromagnetic block 10 fixedly mounted on the positioning sleeve 5 and a magnetic sheet embedded and fixedly mounted in the stop pin 7. The magnetism of the electromagnetic block 10 can be adjusted between repulsion and attraction with the magnetic sheet. When it is necessary to push the stop pin 7 out, the electromagnetic block 10 can be adjusted to repel the magnetic sheet, thereby popping the stop pin 7 out. When it is necessary to pull the stop pin 7 out of the stop slot 6, the electromagnetic block 10 can be adjusted to attract the magnetic sheet, thereby pulling the stop pin 7 back into the positioning sleeve 5.

[0029] Specifically, the base plate 3 is detachably connected to the frame 1 via the connecting seat 4. Furthermore, the connecting seat 4 is fixedly connected to the base plate 3, and the connecting seat 4 can be detachably connected to the frame 1 via bolts, which facilitates the overall disassembly of the base plate 3 and improves the overall stability.

[0030] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0031] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0032] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An overload shutdown device for a rotary cleaner, comprising: The utility model provides a kind of machine frame (1) including rotationally connected sprocket (2), one side of the machine frame (1) is provided with base disc (3) mounted to machine frame (1), a plurality of parking grooves (6) are opened in the side of sprocket (2) towards base disc (3) circumferentially, positioning sleeve (5) is provided on base disc (3) and is opposite vertically with the rotation track of parking groove (6), parking pin (7) is slidably guided on positioning sleeve (5) and is adapted to the rotation track of parking groove (6) and parking groove (6), electromagnetic repulsion driving mechanism is installed on the side of positioning sleeve (5) away from the rotation track of parking groove (6) and can attract and repel parking pin (7), locking mechanism that parking pin (7) in suction state is locked in positioning sleeve (5) is further included.

2. The rotary cleaner overload shutdown device of claim 1 wherein: The locking mechanism includes a drive cylinder (14) fixedly installed on the base disc (3) and having an output end facing the positioning sleeve (5), and an output shaft of the drive cylinder (14) is fixedly installed with a lock seat (13), the positioning sleeve (5) is provided with a through-locking hole (12) for the lock seat (13) to pass through, and the parking pin (7) is provided with a lock groove (11) matched with the lock seat (13).

3. The rotary cleaner overload shutdown device of claim 2 wherein: The positioning sleeve (5) is provided in two groups and symmetrically arranged on one side of the rotation track of the parking groove (6), and the drive cylinder (14) is provided in a double-headed structure, and the number of the parking groove (6) is provided in an even number.

4. The rotary cleaner overload shutdown device of claim 3 wherein: The parking pin (7) is provided with a guide sliding groove (9), and the guide sliding groove (9) is slidably fitted with a guide sliding block (8) integrally formed with the positioning sleeve (5).

5. The rotary cleaner overload shutdown device of claim 4 wherein: The electromagnetic repulsion driving mechanism includes an electromagnetic block (10) fixedly installed on the positioning sleeve (5) and a magnetic sheet fixedly installed in the parking pin (7), and the magnetism of the electromagnetic block (10) can be adjusted between repulsion and attraction with the magnetic sheet.

6. The rotary cleaner overload shutdown device of claim 5 wherein: The base disc (3) is detachably connected to the machine frame (1) through the connecting seat (4).

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