Screw shaft structure for screw ship unloader

Abstract

The utility model discloses a screw shaft structure for a screw ship unloader, which comprises a driving component and a delivery pipe, a plurality of sub-screw shafts and a support structure are respectively arranged in the delivery pipe, the plurality of sub-screw shafts are connected end to end through the support structure to form a whole section of screw shaft, screw blades on shaft bodies of the plurality of sub-screw shafts are connected end to end, and the screw blades on the shaft bodies of the plurality of sub-screw shafts are connected end to end. The supporting structure comprises a supporting ring, the supporting ring is fixed between the sub spiral shaft sections, supporting rods are symmetrically fixed to the two sides of the outer wall of the supporting ring, one ends of the supporting rods are fixedly welded to the supporting ring, and the other ends of the supporting rods and the inner wall of the conveying pipe shell form sliding support; the thickness of the supporting ring is gradually reduced from the middle to the top end and the bottom end, the multiple sub-spiral shafts are fixedly connected with the supporting ring in a welding and rivet fixing combined mode, the driving assembly comprises a driving motor, and a reduction gear box is installed at the output end of the driving motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw ship unloaders, and in particular relates to a screw shaft structure for a screw ship unloader. Background Art

[0002] As a continuous unloading equipment for bulk cargo at the wharf, the screw ship unloader is widely used in bulk cargo loading and unloading operations in ports. Since it can unload bulk cargo continuously and efficiently, it greatly improves the operating efficiency of the port. At present, there are still some urgent problems to be solved in the operation of the screw conveying mechanism of the screw ship unloader, which have an impact on the operating efficiency and stability of the equipment that cannot be ignored. Specifically, the screw shaft of the screw ship unloader is designed to be too long, which undoubtedly increases the difficulty of its processing and manufacturing, and the requirements for processing equipment and processes are also increased accordingly. In addition, the overly long screw shaft is prone to errors during the manufacturing process, such as dimensional deviation, insufficient surface roughness, etc., which will affect the performance, life and maintenance of the screw shaft. Therefore, the utility model aims to propose a screw shaft structure suitable for the screw ship unloader, aiming to reduce the difficulty of processing and manufacturing the screw shaft, so as to ensure that continuous and efficient unloading operations can be achieved. In addition, the stability of the screw shaft during the support rotation process is improved at the same time, which effectively extends the service life of the screw shaft and greatly facilitates daily inspection and maintenance work.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screw shaft structure for a screw ship unloader, comprising a driving assembly and a conveying pipe, wherein a plurality of sub-spiral shafts and a supporting structure are respectively arranged inside the conveying pipe, wherein the plurality of sub-spiral shafts are connected end to end through the supporting structure to form a whole section of the screw shaft, wherein the spiral blades on the shaft bodies of the plurality of sub-spiral shafts are connected end to end, wherein the supporting structure comprises a supporting ring, wherein the supporting ring is fixed between the sub-spiral shaft sections, and support rods are symmetrically fixed on both sides of the outer wall of the support ring, wherein one end of the support rod is welded and fixed to the support ring, and the other end of the support rod forms a sliding support with the inner wall of the outer shell of the conveying pipe.

[0005] As a preferred technical solution of the utility model, the thickness of the support ring gradually becomes thinner from the middle to the top and bottom ends.

[0006] As a preferred technical solution of the utility model, the plurality of sub-spiral shafts are fixedly connected to the support ring by a combination of welding and rivet fixing.

[0007] As a preferred technical solution of the utility model, the driving component includes a driving motor, a reduction gearbox is installed at the output end of the driving motor, the driving motor body casing and the reduction gearbox housing are fixedly connected, and the reduction gearbox output end and the top sub-helical shaft end are fixedly connected.

[0008] As a preferred technical solution of the utility model, a directional wheel is installed at the end of the support rod, and the directional wheel contacts the inner wall of the outer shell of the conveying pipe and forms a sliding support.

[0009] As a preferred technical solution of the present utility model, the support ring and the support rod are both made of hard alloy.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model adopts a combined design of a multi-section sub-screw shaft and a support structure, so that the screw shaft can be manufactured in batches, reducing the difficulty of processing and manufacturing the screw shaft, while adapting to the conveying requirements of different lengths, and realizing continuous and efficient ship unloading operations. The support ring and support rod are provided at the same time to effectively improve the stability of the screw shaft during support rotation and extend the service life of the screw shaft. In addition, the utility model can flexibly adjust the configuration of the sub-screw shaft and the support structure according to the requirements of different ship types and material characteristics, thereby improving the adaptability and flexibility of the screw ship unloader. The overall structure takes into account easy maintenance, and the connection structure between the various components is simple and clear, which is convenient for daily inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is an enlarged structural schematic diagram of A in the utility model;

[0015] In the figure: 1. conveying pipe; 2. sub-screw shaft; 3. support ring; 4. support rod; 5. driving motor; 6. reduction gear box; 7. directional wheel. DETAILED DESCRIPTION

[0016] 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.

[0017] Example

[0018] See also Figure 1-2 The utility model provides the following technical solutions: A screw shaft structure for a screw ship unloader, including a drive assembly and a conveying pipe 1. Inside the conveying pipe 1, a plurality of sub-screw shafts 2 and a supporting structure are carefully arranged. The sub-screw shafts 2 are cleverly connected end to end through the supporting structure to form a complete screw shaft. At the same time, on the shaft body of each sub-screw shaft 2, the spiral blades are connected end to end to ensure the continuity and stability of transportation. The core component of the support structure is the support ring 3. The support ring 3 is precisely fixed between the segments of the sub-screw shaft 2, playing a key connecting and supporting role. In addition, support rods 4 are symmetrically fixed on both sides of the outer wall of the support ring 3. One end of these support rods 4 is firmly fixed to the support ring 3 by welding, and the other end forms a sliding support with the inner wall of the outer shell of the conveying pipe 1, thereby ensuring the stability and safety of the entire conveying mechanism during operation.

[0019] In order to ensure that the continuous conveying of materials is not affected, in this embodiment, as a preferred technical solution of the utility model, the thickness of the support ring 3 gradually becomes thinner from the middle to the top and the bottom.

[0020] In order to ensure the connection strength between the sub-spiral shafts 2 and the support ring 3, in this embodiment, as a preferred technical solution of the utility model, a plurality of sub-spiral shafts 2 are fixedly connected to the support ring 3 by a combination of welding and rivet fixing.

[0021] In order to ensure the stability of the power source, in this embodiment, as a preferred technical solution of the utility model, the driving component includes a driving motor 5, a reduction gear box 6 is installed at the output end of the driving motor 5, the body casing of the driving motor 5 and the box body of the reduction gear box 6 are fixedly connected, and the output end of the reduction gear box 6 and the shaft end of the sub-helical shaft 2 at the top are fixedly connected.

[0022] In order to reduce the friction between the end of the support rod 4 and the inner wall of the conveying pipe 1, in this embodiment, as a preferred technical solution of the utility model, a directional wheel 7 is installed at the end of the support rod 4, and the directional wheel 7 contacts the inner wall of the outer shell of the conveying pipe 1 and forms a sliding support.

[0023] In order to ensure the strength of the support ring 3 and the support rod 4, in this embodiment, as a preferred technical solution of the utility model, the support ring 3 and the support rod 4 are both made of cemented carbide.

[0024] In the process of implementing the utility model, it is first necessary to have an in-depth understanding of the overall structure and working principle of the screw ship unloader. The screw ship unloader is mainly composed of a conveying screw, a driving component, a supporting structure and other parts, among which the conveying screw is the key component responsible for continuously conveying the bulk cargo in the cabin to the shore. The conveying screw is composed of a multi-section sub-screw shaft 2, and each section of the sub-screw shaft 2 is connected by a supporting structure. It adopts a sliding continuous support, including a support ring 3 and a support rod 4. The support ring 4 is placed between the two sections of the sub-screw shaft, and is slidably supported by the support rod 4 and the outer shell of the conveying pipe 1 to ensure the stability of the sub-screw shaft 2 during rotation. During assembly, each section of the sub-screw shaft 2 and the support ring 3 are accurately installed according to the design requirements to ensure the straightness and coaxiality of the entire section of the screw shaft. The drive motor 5 of the drive assembly, through its output end, stably transmits the abundant power to the reduction gear box 6. After receiving the power, the reduction gear box 6 realizes the deceleration effect of the power output through its internal gear reduction mechanism. The decelerated power is accurately transmitted to the screw shaft, thereby providing it with continuous and stable rotational power. The drive assembly selects a suitable model and parameters according to actual needs. During use, the entire screw shaft rotates under the drive of the drive assembly, continuously transporting the bulk cargo in the cabin to the delivery pipe 1, and finally transporting it to the shore. Due to the sliding continuous support of the support structure, the screw shaft can maintain good stability and small friction resistance during rotation, thereby improving the operating efficiency and stability of the screw ship unloader.

[0025] In addition, the screw shaft structure of the utility model has good adaptability and flexibility. According to different ship types and material characteristics, the length and number of the sub-screw shafts, as well as the layout and number of the supporting structures can be adjusted to meet different operation requirements.

[0026] Finally, it should be noted that in the present utility model, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0027] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A screw shaft structure for a screw ship unloader, characterized in that: The invention comprises a driving assembly and a conveying pipe (1), wherein a plurality of sub-spiral shafts (2) and a support structure are respectively arranged inside the conveying pipe (1), wherein the plurality of sub-spiral shafts (2) are connected end to end via the support structure to form a whole section of the spiral shaft, and the spiral blades on the shaft bodies of the plurality of sub-spiral shafts (2) are connected end to end, and the support structure comprises a support ring (3), wherein the support ring (3) is fixed between the sections of the sub-spiral shafts (2), and support rods (4) are symmetrically fixed on both sides of the outer wall of the support ring (3), wherein one end of the support rod (4) is fixed to the support ring (3) by welding, and the other end of the support rod (4) forms a sliding support with the inner wall of the outer shell of the conveying pipe (1).

2. The screw shaft structure for a screw ship unloader according to claim 1, characterized in that: The thickness of the support ring (3) gradually becomes thinner from the middle to the top and bottom ends.

3. The screw shaft structure for a screw ship unloader according to claim 1, characterized in that: The plurality of sub-spiral shafts (2) are fixedly connected to the support ring (3) by a combination of welding and rivet fixing.

4. The screw shaft structure for a screw ship unloader according to claim 1, characterized in that: The driving assembly comprises a driving motor (5), the output end of the driving motor (5) is provided with a reduction gear box (6), the housing of the driving motor (5) and the housing of the reduction gear box (6) are fixedly connected, and the output end of the reduction gear box (6) and the shaft end of the sub-helical shaft (2) at the top are fixedly connected.

5. The screw shaft structure for a screw ship unloader according to claim 1, characterized in that: A directional wheel (7) is installed at the end of the support rod (4), and the directional wheel (7) contacts the inner wall of the outer shell of the conveying pipe (1) to form a sliding support.

6. The screw shaft structure for a screw ship unloader according to claim 1, characterized in that: The support ring (3) and the support rod (4) are both made of hard alloy.

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