Anti-derailing wiper blade machine

Abstract

The utility model relates to a kind of anti-derailment wiper, including wiper, wiper shaft, wiper machine connecting cover, wiper machine shell, shaft coupling, feeding carousel, dustproof sealing ring and motor speed reducer, the output shaft of motor speed reducer is coaxially connected with wiper shaft by shaft coupling, wiper machine shell is set on motor speed reducer, dustproof sealing ring is set at the connecting place between motor speed reducer and wiper machine shell, feeding carousel is fixed on shaft coupling and is set in wiper machine shell, wiper machine connecting cover is set on wiper machine shell, if a group wiper is evenly spaced distribution on the axial direction of wiper shaft, the output shaft of motor speed reducer and shaft coupling are connected by key and key groove cooperation, limit thimble screw is equipped on the lateral wall of shaft coupling. The design separates torque transmission and axial positioning function, significantly reduces the risk of thimble screw fracture, solves the shutdown problem caused by derailment of equipment. Simple and reliable structure, low transformation cost, suitable for powdery / flaky material conveying equipment.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment technology, and in particular to a scraper machine that prevents shaft detachment. Background Technology

[0002] Reference Figure 1 and Figure 2 The current scraper machine structure mainly includes scrapers, scraper shafts, scraper machine connecting covers, scraper machine housings, couplings, feeding turntables, dustproof sealing rings, and motor reducers. The output shaft of the motor reducer is coaxially connected to the scraper shaft via a coupling. The scraper machine housing is mounted on the motor reducer. The dustproof sealing ring is located at the connection between the motor reducer and the scraper machine housing. The feeding turntable is fixed on the coupling and located inside the scraper machine housing. The scraper machine connecting cover is located on the scraper machine housing. Each group of scrapers is evenly spaced along the axial direction of the scraper shaft.

[0003] In existing technologies, refer to Figure 2 The scraper machine connects the motor reducer and the scraper shaft through a pin screw. With prolonged use or when the scraper jams, the pin screw of the coupling between the motor reducer and the scraper shaft is prone to breakage, causing the scraper machine to malfunction. The reason for the breakage is that the pin screw has to bear the functions of torque transmission and axial limit at the same time, resulting in concentrated force. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a scraper machine that prevents shaft detachment, which solves the problem of shaft detachment caused by the easy breakage of the pin screw of the coupling.

[0005] The above-mentioned utility model objective is achieved through the following technical solution: A scraper with anti-shaft detachment includes scrapers, a scraper shaft, a scraper connecting cover, a scraper housing, a coupling, a feeding turntable, a dustproof sealing ring, and a motor reducer. The output shaft of the motor reducer is coaxially connected to the scraper shaft via the coupling. The scraper housing is mounted on the motor reducer. The dustproof sealing ring is located at the connection between the motor reducer and the scraper housing. The feeding turntable is fixed to the coupling and located inside the scraper housing. The scraper connecting cover is located on the scraper housing. If a group of scrapers is evenly spaced along the axial direction of the scraper shaft, the coupling is connected to the output shaft of the motor reducer via a key and keyway. The side wall of the coupling is provided with a limit pin screw.

[0006] As a further technical solution of this utility model: the key is integrally formed and fixedly connected to the side wall of the output shaft of the motor reducer, the keyway is opened along the axial direction of the inner wall of the coupling, and the key is embedded in the keyway to realize circumferential torque transmission.

[0007] As a further technical solution of this utility model: one end of the limiting pin screw passes through the coupling and abuts against the side wall of the output shaft of the motor reducer.

[0008] In summary, this utility model has at least one of the following beneficial technical effects: This utility model relates to a scraper conveyor with anti-shaft detachment function, belonging to the technical field of material processing equipment. Addressing the problem of shaft detachment caused by the easily broken coupling pin screws in existing scraper conveyors, this utility model employs a dual structure: a key and keyway for torque transmission, and a limiting pin screw for vertical axial positioning. Specifically, a keyway and matching key are provided between the output shaft of the motor reducer and the coupling, allowing torque to be transmitted through the keyway structure; simultaneously, a limiting pin screw perpendicular to the axis is provided on the side wall of the coupling, with its end abutting against the side wall of the motor reducer's output shaft to achieve axial positioning. This design separates torque transmission and axial positioning functions, significantly reducing the risk of pin screw breakage and solving the problem of equipment downtime due to shaft detachment. This utility model has a simple and reliable structure, low modification cost, and is suitable for conveying equipment for powdery / flaky materials. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of an existing blade scraper in the prior art.

[0010] Figure 2 This is a schematic diagram of the structure of a coupling in the prior art.

[0011] Figure 3 This is a schematic diagram of the structure of this utility model.

[0012] Figure 4 This is a schematic diagram of the coupling of this utility model.

[0013] Figure 5 for Figure 4 Top view.

[0014] Reference numerals in the attached drawings: 1. Scraper shaft; 2. Scraper connecting cover; 3. Scraper housing; 4. Coupling; 41. Key; 42. Keyway; 43. Ejector pin screw; 5. Feeding turntable; 6. Dustproof sealing ring; 7. Motor reducer; 8. Scraper. Detailed Implementation

[0015] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0016] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0018] Example 1: Reference Figure 3 This utility model discloses a scraper machine with anti-shaft detachment, including scraper blades 8, scraper shaft 1, scraper machine connecting cover 2, scraper machine housing 3, coupling 4, feeding turntable 5, dustproof sealing ring 6, and motor reducer 7. The output shaft of the motor reducer 7 is coaxially connected to the scraper shaft 1 through the coupling 4. The scraper machine housing 3 is mounted on the motor reducer 7. The dustproof sealing ring 6 is located at the connection between the motor reducer 7 and the scraper machine housing 3. The feeding turntable 5 is fixed on the coupling 4 and located inside the scraper machine housing 3. The scraper machine connecting cover 2 is located on the scraper machine housing 3. Each group of scraper blades 8 is evenly distributed along the axial direction of the scraper shaft 1.

[0019] Reference Figure 4 and Figure 5 The coupling 4 is connected to the output shaft of the motor reducer 7 via a key 41 and a keyway 42. A limiting screw 43 is provided on the side wall of the coupling 4. The key 41 is integrally formed and fixedly connected to the side wall of the output shaft of the motor reducer 7. The keyway 42 is axially opened along the inner wall of the coupling 4, and the key 41 is embedded in the keyway 42 to achieve circumferential torque transmission. One end of the limiting screw 43 passes through the coupling 4 and abuts against the side wall of the output shaft of the motor reducer 7.

[0020] The implementation principle of this utility model is as follows: This utility model relates to a scraper machine with anti-shaft detachment, belonging to the technical field of material processing equipment. Addressing the problem of easy breakage of the ejector screw 43 in the coupling 4 of existing scraper machines, leading to shaft detachment, this utility model adopts a dual structure: a key 41 and a keyway 42 cooperate to transmit torque, while the ejector screw 43 provides vertical axial positioning. Specifically, a keyway 42 and a matching key 41 are provided between the output shaft of the motor reducer 7 and the coupling 4, allowing torque to be transmitted through the keyway 42 structure; simultaneously, a limiting ejector screw 43 perpendicular to the axis is provided on the side wall of the coupling 4, with its end abutting against the side wall of the output shaft of the motor reducer 7 to achieve axial limiting. This design separates the torque transmission and axial positioning functions, significantly reducing the risk of ejector screw 43 breakage and solving the problem of equipment downtime due to shaft detachment. This utility model has a simple and reliable structure, low modification cost, and is suitable for powder / flake material conveying equipment.

[0021] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A scraper with anti-shaft detachment, comprising scraper blades (8), scraper shaft (1), scraper connecting cover (2), scraper housing (3), coupling (4), feeding turntable (5), dustproof sealing ring (6), and motor reducer (7), wherein the output shaft of the motor reducer (7) is coaxially connected to the scraper shaft (1) via coupling (4), the scraper housing (3) is disposed on the motor reducer (7), the dustproof sealing ring (6) is disposed at the connection between the motor reducer (7) and the scraper housing (3), the feeding turntable (5) is fixed on the coupling (4) and disposed inside the scraper housing (3), the scraper connecting cover (2) is disposed on the scraper housing (3), wherein the scraper blades (8) are evenly spaced along the axial direction of the scraper shaft (1), characterized in that, The coupling (4) is connected to the output shaft of the motor reducer (7) by a key (41) and a keyway (42). The side wall of the coupling (4) is provided with a limiting pin screw (43).

2. The scraper machine with anti-shaft detachment according to claim 1, characterized in that, The key (41) is integrally formed and fixedly connected to the side wall of the output shaft of the motor reducer (7). The keyway (42) is opened along the axial direction of the inner wall of the coupling (4). The key (41) is embedded in the keyway (42) to realize circumferential torque transmission.

3. The scraper machine with anti-shaft detachment according to claim 1, characterized in that, One end of the limiting pin screw (43) passes through the coupling (4) and abuts against the side wall of the output shaft of the motor reducer (7).

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