Screw connecting device
By setting screw connectors and protective sleeves at the connection positions of feed screws and melt screws, the problem of easy breakage and corrosion of the connection is solved, and the long life of the equipment is achieved.
Patent Information
- Application Number
- CN202422044974.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The connection position of the feed screw and the molten screw is prone to break, and the connection is prone to corrosion, resulting in the scrapping of the equipment, which cannot be effectively solved by the existing technology.
A screw connecting member is provided at the connection position between the feed screw and the melting screw, and a protective sleeve is provided on its outer periphery. Compensation rings are provided at both ends of the connecting sleeve to absorb thermal expansion and mechanical stress. The screw connecting member includes a connecting sleeve, a protective sleeve and a coupling.
It extends the service life of the equipment, ensures that the screw can still operate normally when damaged, and effectively absorbs the thermal expansion and mechanical stress of the screw during operation.
Smart Images
Figure CN223186939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw rods, in particular to a screw rod connecting device. Background Art
[0002] The feed screw and the melting screw are connected as a single unit by the threads at the end of the melting screw and the threaded hole at the end of the feed screw. During operation, due to the high torque required to extrude the material, the connection between the feed screw and the melting screw is prone to fracture under the long-term high torque, resulting in the scrapping of the feed screw and the melting screw. Furthermore, the connection between the feed screw and the melting screw is not equipped with a protective cover, which is prone to corrosion and fracture after long-term use. Utility Model Content
[0003] The main purpose of the utility model is to provide a screw connection device for solving the above technical problems.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a screw connecting device, comprising a feeding screw and a melting screw, a screw connecting piece is provided at the connection position of the feeding screw and the melting screw, a protective sleeve is provided on the outer periphery of the screw connecting piece, and a coupling is provided at one end of the feeding screw.
[0005] On the basis of the above solution and as a preferred solution of the above solution: the screw connector includes a connecting sleeve, both ends of the connecting sleeve are provided with compensation rings, and the connecting sleeve is provided with an exhaust hole.
[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the protective sleeve includes a first bushing and a second bushing, the first bushing is provided with a chuck, the first bushing is provided with a plurality of inserts, and the second bushing is provided with a plurality of matching slots.
[0007] On the basis of the above solution and as a preferred solution of the above solution: a first threaded hole and a second threaded hole are respectively provided on the first bushing and the second bushing.
[0008] On the basis of the above solution and as a preferred solution of the above solution: the first bushing and the second bushing are coated with a wear-resistant layer.
[0009] The beneficial effects of the present invention are as follows: the present invention uses a screw connector at the connection position of the feed screw and the melting screw to ensure the normal operation of the screw when the connection between the two screws is damaged; compensation rings are provided at both ends of the connecting sleeve of the screw connector, which can effectively absorb the thermal expansion and mechanical stress generated by the screw during operation, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1It is a schematic diagram of the overall structure of the utility model;
[0011] Figure 2 It is a top view of the present utility model. DETAILED DESCRIPTION
[0012] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments. However, the specific implementation methods and embodiments described below are only for illustrative purposes and are not intended to limit the present invention.
[0013] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.
[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0015] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0016] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0017] See attached figure Figures 1 to 2 A screw connecting device in this embodiment includes a feeding screw 1 and a melting screw 2. A screw connector is provided at the connection position of the feeding screw 1 and the melting screw 2. A protective sleeve is provided on the outer periphery of the screw connector. A coupling 6 is provided at one end of the feeding screw 1.
[0018] Furthermore, the screw connector includes a connecting sleeve 3 , both ends of the connecting sleeve 3 are provided with compensation rings 30 , and the connecting sleeve 3 is provided with an exhaust hole 31 .
[0019] Furthermore, the protective sleeve includes a first bushing 4 and a second bushing 5 . The first bushing 4 is provided with a chuck 41 . The first bushing 4 is provided with a plurality of inserting strips 40 . The second bushing 5 is provided with a plurality of matching slots 50 .
[0020] Furthermore, a first threaded hole 7 and a second threaded hole 8 are respectively provided on the first bushing 4 and the second bushing 5 .
[0021] Furthermore, the first bushing 4 and the second bushing 5 are coated with a wear-resistant layer.
[0022] The utility model uses a screw connector at the connection position of the feed screw 1 and the melting screw 2 to ensure the normal operation of the screws when the connection between the two screws is damaged; compensation rings 30 are provided at both ends of the connecting sleeve 3 of the screw connector, which can effectively absorb the thermal expansion and mechanical stress generated by the screws during operation, thereby extending the service life of the equipment.
[0023] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A screw connection device, characterized in that: The invention comprises a feeding screw and a melting screw. A screw connector is provided at the connection position of the feeding screw and the melting screw. A protective sleeve is provided on the outer periphery of the screw connector. A coupling is provided at one end of the feeding screw.
2. A screw connection device according to claim 1, characterized in that: The screw connector includes a connecting sleeve, both ends of the connecting sleeve are provided with compensation rings, and the connecting sleeve is provided with an exhaust hole.
3. A screw connection device according to claim 2, characterized in that: The protective sleeve includes a first sleeve and a second sleeve. The first sleeve is provided with a chuck, a plurality of inserting strips, and the second sleeve is provided with a plurality of matching slots.
4. A screw connection device according to claim 3, characterized in that: A first threaded hole and a second threaded hole are respectively provided on the first bushing and the second bushing.
5. The screw connection device according to claim 4, characterized in that: The first bushing and the second bushing are coated with a wear-resistant layer.