Connector with anti-loosening structure

Abstract

The utility model relates to the technical field of parts for double-screw extruders, in particular to a connector with an anti-loosening structure, which comprises a connector main body, a sealing gland is arranged on the connector main body, an end cover is arranged on the sealing gland, a mounting hole and a screw hole are arranged on the connector main body, a sealing element is arranged on the mounting hole, and the end cover is arranged on the end cover. A screw hole is formed in the end cover, a screw rod is arranged on the screw hole, the screw rod penetrates through the sealing gland and the end cover, a spring is arranged on the screw rod, one end of the spring abuts against the end cover, nuts are arranged between the screw rod and the other end of the spring, the number of the mounting holes is two, the number of the nuts is two, and the number of the nuts is two. According to the structure, the problem that the bolt of the sealing structure is loosened due to axial alternating stress in the operation process of the double-screw extruder is effectively solved, the operation reliability of equipment is improved, tight attachment of the sealing piece, the sealing gland and the end cover between the connecting body and the screw is ensured through the design of the pre-tightening force of the spring, and the sealing effect is remarkably enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of components for twin-screw extruders, in particular to a connector with an anti-loosening structure. Background Art

[0002] As we all know, as a highly efficient plastic processing equipment, twin-screw extruder has a profound technical background and is constantly evolving. With the rapid development of the plastics industry, the requirements for plastic processing equipment are also increasing. With its unique structure and working principle, the twin-screw extruder occupies an important position in the field of plastic processing.

[0003] Twin-screw extruder is mainly composed of two intermeshing screws, barrel, transmission device, feeding device, temperature control system and cutting device, etc. Its working principle is that through the rotation and intermeshing of the two screws, the material is subjected to strong shearing, stretching and compression in the barrel, thereby achieving mixing, plasticization and extrusion of the material.

[0004] The connector is an intermediate element between the gearbox, barrel and screw in the transmission device. It not only provides a stable support for the screw in structure, but also serves as an intermediate transition connection between the gearbox and barrel, ensuring the continuity and stability of power transmission.

[0005] Structurally, the connector is designed to provide support for the screw. This support structure not only ensures the stability of the screw when it rotates at high speed, but also reduces the heat and wear caused by friction, thereby extending the service life of the screw. At the same time, the support connection between the connector and the screw needs to ensure reliable sealing at the connection to prevent the backflow of raw materials and improve the operating efficiency of the system.

[0006] However, during the operation of the twin-screw equipment, the screw will generate axial force. Under the action of axial alternating stress, the bolts at the sealing structure are prone to loosening, thus affecting the sealing effect and causing material leakage. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies of the prior art, the utility model provides a connector with an anti-loosening structure.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a connector with an anti-loosening structure, comprising a connector body, a sealing cover is provided on the connector body, an end cover is provided on the sealing cover, a mounting hole and a screw hole are opened on the connector body, a sealing member is provided on the mounting hole, a screw is provided on the screw hole, the screw passes through the sealing cover and the end cover, a spring is provided on the screw, one end of the spring abuts against the end cover, a nut is provided between the screw and the other end of the spring, two mounting holes are provided, two nuts are provided, and multiple screws are provided.

[0011] Furthermore, the utility model is improved in that the two mounting holes are symmetrically arranged.

[0012] Furthermore, the utility model is improved in that a plurality of the screw holes are arranged in an annular array.

[0013] Furthermore, the utility model is improved in that the sealing member is a filling type sealing member.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a connector with an anti-loosening structure, which has the following beneficial effects:

[0016] The connector with an anti-loosening structure effectively solves the problem of loosening of the sealing structure bolts caused by axial alternating stress during the operation of the twin-screw extruder, thereby improving the reliability of the equipment operation. The design of the spring preload ensures the tight fit of the sealing gland and the end cover between the connector and the screw, significantly enhancing the sealing effect, avoiding material leakage, and improving the equipment's working efficiency. The adjustability of the spring support force gives the connector greater adaptability, enabling it to maintain the best anti-loosening state under different working conditions or changes in axial force. The application of the multi-screw structure further enhances the stability of the connector, ensuring the long-term and efficient operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 It is a top view of the structure of the utility model in half section.

[0020] In the figure: 1. connector body; 2. seal; 3. sealing cover; 4. end cover; 5. screw; 6. spring; 7. nut. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The utility model is a connector with an anti-loosening structure, including a connector body 1, a sealing gland 3 is provided on the connector body 1, an end cover 4 is provided on the sealing gland 3, a mounting hole and a screw hole are opened on the connector body 1, a sealing member 2 is provided on the mounting hole, a screw rod 5 is provided on the screw hole, the screw rod 5 passes through the sealing gland 3 and the end cover 4, a spring 6 is provided on the screw 5, one end of the spring 6 is against the end cover 4, a nut 7 is provided between the screw rod 5 and the other end of the spring 6, two mounting holes are provided, two nuts 7 are provided, and a plurality of screws 5 are provided. In this embodiment, the sealing member 2 is assembled on the mounting hole of the connector body 1, and then Finally, the sealing gland 3 is fixed on the end face, the sealing gland 3 is pressed by the end cover 4, and then the screw 5 is passed through the end cover 4 and the sealing gland 3, and then the spring 6 is placed on the screw 5, and the bottom end of the spring 6 is against the end cover 4, and two nuts 7 are threadedly connected to the screw 5, so that the other end of the spring 6 is against a nut 7, so that the spring 6 provides a pre-tightening force to the end cover 4 to prevent the seal 2, the sealing gland 3 and the end cover 4 from loosening. By rotating the position of the two nuts 7, the elastic supporting force of the spring 6 can be adjusted, and the seal 2 can be fixed more stably by multiple screws 5. By adjusting the two nuts 7 on the multiple screws 5, it is convenient to adjust the elastic supporting force of the springs 6 on the multiple screws 5 to the end cover 4.

[0023] In this solution, the two mounting holes are symmetrically arranged. The symmetrically arranged mounting holes can make the sealing gland 3 and the end cover 4 more stably fixed on the connector body 1, further improving the anti-loosening stability of the structure.

[0024] In this solution, a plurality of screw holes are arranged in an annular array, and a plurality of screw rods 5 are arranged in an annular array on the screw holes, so that the end cover 4 can be more effectively prevented from loosening, thereby ensuring stable assembly of the sealing cover 3 and the sealing member 2.

[0025] In this solution, the sealing member 2 is a filling type sealing member 2 , and the filling type sealing member 2 can improve the sealing effect of the mounting hole.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connector with an anti-loosening structure, comprising a connector body (1), characterized in that: The connector body (1) is provided with a sealing cover (3), the sealing cover (3) is provided with an end cover (4), the connector body (1) is provided with a mounting hole and a screw hole, the mounting hole is provided with a sealing member (2), the screw hole is provided with a screw rod (5), the screw rod (5) passes through the sealing cover (3) and the end cover (4), the screw rod (5) is provided with a spring (6), one end of the spring (6) is against the end cover (4), a nut (7) is provided between the screw rod (5) and the other end of the spring (6), two mounting holes are provided, two nuts (7) are provided, and a plurality of screw rods (5) are provided.

2. A connector with an anti-loosening structure according to claim 1, characterized in that: The two mounting holes are symmetrically arranged.

3. A connector with an anti-loosening structure according to claim 2, characterized in that: A plurality of the screw holes are arranged in a circular array.

4. A connector with an anti-loosening structure according to claim 3, characterized in that: The sealing element (2) is a filling type sealing element (2).

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