Dustproof structure of a gear coupling

Abstract

The utility model discloses a dustproof structure of drum gear coupling belongs to drum gear coupling technical field. Mainly including two rotating shafts, the inside bushing of two rotating shafts is equipped with the shaft sleeve, the front end of shaft sleeve is provided with gear cover, the outer wall of gear cover is provided with drum gear, the periphery of drum gear is provided with coupling sleeve, the front end of coupling sleeve is provided with filter plate, the upper end of rotating shaft is opened with the sliding slot, the upper end sliding connection of sliding slot has the sliding block, the upper end fixed mounting of sliding block has the connecting rod, the periphery fixed mounting elastic member of connecting rod, the upper end of shaft sleeve is close to the connecting rod and is opened with the pressing groove, the size of pressing groove and the size of connecting rod are adapted, and the front end of filter plate is close to the shaft sleeve and is connected with first filter screen, and the rear section of first filter screen is connected with second filter screen. The dustproof structure of drum gear coupling of the application reaches the effect of sealing dustproof, convenient to disassemble and maintain.

Description

Technical Field

[0001] This invention relates to the field of drum-shaped gear coupling technology, and more specifically, to a dustproof structure for a drum-shaped gear coupling. Background Technology

[0002] Crank gear couplings are a key basic component widely used in heavy machinery in metallurgy, mining, hoisting and transportation, petrochemical and other industries. They transmit torque through the meshing of internal and external teeth. Their core advantage lies in the "crank gear" design, where the tooth tips and surfaces of the external gear are drum-shaped. This design allows for smooth transmission while maintaining a large angular and radial misalignment compensation capability, effectively compensating for the relative displacement between the two connecting shafts caused by manufacturing and installation errors and load variations during operation.

[0003] However, traditional drum-type gear couplings have a significant weakness in practical applications: their sealing and dustproof capabilities are generally insufficient. During operation, a necessary meshing clearance exists between the internal and external teeth of the coupling, while the working environment (especially the harsh conditions mentioned above) is filled with a large amount of dust, moisture, and other abrasive contaminants. These impurities can easily penetrate into the meshing area of ​​the tooth surface through the end clearance of the coupling. Once contaminants enter, they mix with the lubricating grease to form an abrasive paste, drastically accelerating tooth surface wear, leading to pitting, scuffing, and even tooth breakage. This not only generates vibration and noise but also severely shortens the service life of the coupling and may even cause unexpected equipment downtime, resulting in huge economic losses.

[0004] Therefore, it is necessary to provide a dustproof structure for a drum-shaped gear coupling to solve the above problems. Utility Model Content

[0005] Based on the aforementioned problems in the prior art, the purpose of this application is to provide a dustproof structure for a drum-shaped gear coupling, which achieves the functions of sealing and dustproofing, and facilitating disassembly and maintenance.

[0006] The technical solution adopted by this application to solve its technical problem is: a dustproof structure for a drum-shaped gear coupling, comprising two rotating shafts, a bushing sleeve on the inner side of the two rotating shafts, a gear sleeve at the front end of the bushing sleeve, drum-shaped teeth on the outer wall of the gear sleeve, a coupling sleeve around the drum-shaped teeth, and a filter plate at the front end of the coupling sleeve.

[0007] Furthermore, the filter plate is slidably connected to the bushing.

[0008] Furthermore, a groove is provided at the upper end of the rotating shaft, a sliding block is slidably connected to the upper end of the groove, a connecting rod is fixedly installed at the upper end of the sliding block, and an elastic element is fixedly installed around the connecting rod.

[0009] Furthermore, a pressing groove is provided at the upper end of the bushing near the connecting rod, and the size of the pressing groove is adapted to the size of the connecting rod.

[0010] Furthermore, a first filter screen is snapped onto the front end of the filter plate near the bushing, and a second filter screen is snapped onto the rear end of the first filter screen.

[0011] The beneficial effects of this utility model are as follows: A filter plate is provided at the front end of the coupling sleeve. The filter plate is slidably connected to the sleeve, so that when the coupling operates and generates angular or axial displacement, the filter plate can move accordingly and always remain in the critical position. The filter plate is fitted with a first filter screen and a second filter screen. These two layers of filter screens constitute the main dustproof barrier, effectively blocking dust, particulate matter and other pollutants in the external environment from entering the interior of the coupling sleeve and protecting the meshing surface of the drum-shaped teeth. Attached Figure Description

[0012] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is an overall schematic diagram of the dustproof structure of a drum-shaped gear coupling in this application; Figure 2 for Figure 1 Schematic diagram of the internal structure of the coupling; Figure 3 for Figure 1 Schematic diagram of the middle filter plate; In the diagram: 1. Rotating shaft; 2. Coupling sleeve; 3. Shaft sleeve; 4. Filter plate; 5. Gear sleeve; 6. Drum-shaped teeth; 7. Sliding block; 8. Slide groove; 9. Elastic element; 10. Pressing groove; 11. First filter screen; 12. Second filter screen; 13. Connecting rod. Detailed Implementation

[0013] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0015] In this invention, unless otherwise stated, the orientations used, such as "up" and "down," generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this invention.

[0016] like Figure 1-3 As shown, this application provides a dustproof structure for a drum-shaped gear coupling, including two rotating shafts 1, with a bushing 3 sleeved on the inner side of the two rotating shafts 1, a gear sleeve 5 provided at the front end of the bushing 3, drum-shaped teeth 6 provided on the outer wall of the gear sleeve 5, a coupling sleeve 2 provided around the drum-shaped teeth 6, and a filter plate 4 provided at the front end of the coupling sleeve 2.

[0017] The filter plate 4 is slidably connected to the bushing 3.

[0018] A groove 8 is provided at the upper end of the rotating shaft 1. A sliding block 7 is slidably connected to the upper end of the groove 8. A connecting rod 13 is fixedly installed at the upper end of the sliding block 7. An elastic element 9 is fixedly installed around the connecting rod 13.

[0019] A pressing groove 10 is provided at the upper end of the bushing 3 near the connecting rod 13, and the size of the pressing groove 10 is adapted to the size of the connecting rod 13.

[0020] The first filter screen 11 is snapped onto the front end of the filter plate 4 near the bushing 3, and the second filter screen 12 is snapped onto the rear end of the first filter screen 11.

[0021] Specifically, the two rotating shafts 1 serve as the power input and output ends. Power is transmitted through the rotating shafts 1 to the inner bushings 3, and then transmitted by the gear sleeves 5 at the front end of the bushings 3. Since the drum-shaped teeth 6 on the outer wall of the gear sleeves 5 mesh with the inner teeth of the outer coupling sleeves 2, the design of the drum-shaped teeth 6 allows for a certain angular and radial deviation, thereby achieving flexible transmission and compensating for the misalignment between the two rotating shafts 1.

[0022] A filter plate 4 is provided at the front end of the coupling sleeve 2. The filter plate 4 is slidably connected to the bushing 3, so that when the coupling is running and produces angular or axial displacement, the filter plate can move accordingly and always remain in the critical position. The filter plate 4 is fitted with a first filter screen 11 and a second filter screen 12. These two layers of filter screens constitute the main dustproof barrier, effectively blocking dust, particulate matter and other pollutants in the external environment from entering the interior of the coupling sleeve 2 and protecting the meshing surface of the drum-shaped teeth 6.

[0023] When disassembly and maintenance are required, the operator can press the connecting rod 13. The sliding block 7 at the lower end of the connecting rod 13 slides in the groove 8 of the rotating shaft 1 and compresses the elastic element 9. When the connecting rod 13 is pressed to align with the pressing groove 10 on the coupling sleeve 2, the connecting rod 13 will be locked into the pressing groove 10 under the restoring force of the elastic element 9, locking the relative position of the bushing 3 and the coupling sleeve 2, which facilitates overall disassembly or cleaning and replacement of components such as the filter screen.

[0024] Obviously, the embodiments described above are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort should fall within the scope of protection of this invention.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0028] The above description is merely a preferred embodiment of this invention. The scope of protection of this invention is not limited to the above embodiments. All technical solutions falling within the scope of this invention's concept are within the scope of protection of this invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this invention should also be considered within the scope of protection of this invention.

Claims

1. A dustproof structure for a drum-shaped gear coupling, characterized in that: It includes two rotating shafts (1), with a bushing (3) sleeved on the inner side of the two rotating shafts (1), a gear sleeve (5) provided at the front end of the bushing (3), a drum-shaped tooth (6) provided on the outer wall of the gear sleeve (5), a coupling sleeve (2) provided around the drum-shaped tooth (6), and a filter plate (4) provided at the front end of the coupling sleeve (2).

2. The dustproof structure of a drum-shaped gear coupling according to claim 1, characterized in that: The filter plate (4) is slidably connected to the bushing (3).

3. The dustproof structure of a drum-shaped gear coupling according to claim 1, characterized in that: The upper end of the rotating shaft (1) is provided with a sliding groove (8), and a sliding block (7) is slidably connected to the upper end of the sliding groove (8). A connecting rod (13) is fixedly installed on the upper end of the sliding block (7), and an elastic element (9) is fixedly installed on the periphery of the connecting rod (13).

4. The dustproof structure of a drum-shaped gear coupling according to claim 3, characterized in that: The upper end of the bushing (3) near the connecting rod (13) is provided with a pressing groove (10), the size of which is adapted to the size of the connecting rod (13).

5. The dustproof structure of a drum-shaped gear coupling according to claim 1, characterized in that: The filter plate (4) is fitted with a first filter screen (11) near the front end of the bushing (3), and a second filter screen (12) is fitted with the rear end of the first filter screen (11).

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