A new type of screw shaft for wastewater dewatering machine

Abstract

This utility model discloses a novel spiral shaft for a wastewater dewatering machine, comprising a spiral shaft body. One end of the spiral shaft body is sleeved inside a first connecting sleeve, and the other end of the spiral shaft body is sleeved inside a second connecting sleeve. A rotating motor is fixedly connected to one side of the first connecting sleeve. The rotating motor is fixedly connected to a connecting shaft via a shaft. The connecting shaft is rotatably connected inside the first connecting sleeve via a bearing. A cross shaft is fixedly connected to one end of the connecting shaft. A cross groove is fixedly formed at one end of the spiral shaft body, and the cross shaft is fitted into the cross groove. This design employs a sleeve-type spiral shaft, which is convenient for installation and disassembly, allowing for quick disassembly and cleaning, compared to the traditional bearing-type connection method.

Description

Technical Field

[0001] This utility model belongs to the technical field of dewatering machine parts, specifically relating to a new type of spiral shaft for a wastewater dewatering machine. Background Technology

[0002] Sludge is an inevitable byproduct of wastewater treatment plants and sewage treatment stations. If sludge that has not been properly treated and disposed of enters the environment, it will directly cause secondary pollution to water bodies and the atmosphere, posing a serious threat to the ecological environment and human activities. Currently, the most common method of treatment is to use dewatering machines. Sludge dewatering machines are a type of continuously operating sludge treatment equipment. They are popular because of their low sludge moisture content, stable operation, low energy consumption, relatively simple control and management, and convenient maintenance.

[0003] There are already many dewatering machine screw shafts on the market, such as the screw shaft of a stacked screw sludge dewatering machine proposed in CN219449533U, which includes a central shaft body and screw blades fixed to its outside. The central shaft body and the screw blades are formed by snapping together multiple shaft units end to end. Each shaft unit has at least one groove and at least one protrusion at its head end. The groove and the protrusion are tenon and mortise joints. The inner wall of the groove has a slot along its length. The outer side of the protrusion has a locking key along its length, and the locking key cooperates with the slot.

[0004] Currently, the spiral shafts and blades of dewatering machines used in sewage treatment often have a large amount of sludge remaining on their surfaces, so they frequently need to be disassembled for cleaning. Most common spiral blades are directly fixed to the drive equipment, making disassembly and cleaning inconvenient and limiting their use. Utility Model Content

[0005] The purpose of this invention is to provide a novel spiral shaft for a wastewater dewatering machine, which solves the problem mentioned in the background art that the spiral blades of existing dewatering machines are inconvenient to disassemble and clean. This device adopts a sleeve-type spiral shaft, which can quickly connect and disconnect the spiral shaft body for cleaning. The installation and disassembly are simple and quick. Compared with the traditional bearing rotation type, it is more convenient to disassemble and install, and has significant advantages.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel spiral shaft for a wastewater dewatering machine, comprising a spiral shaft body, one end of which is sleeved inside a first connecting sleeve, and the other end of which is sleeved inside a second connecting sleeve. A rotating motor is fixedly connected to one side of the first connecting sleeve, and the rotating motor is fixedly connected to a connecting shaft via a shaft. The connecting shaft is rotatably connected inside the first connecting sleeve via a bearing, and a cross shaft is fixedly connected to one end of the connecting shaft. A cross groove is fixedly opened at one end of the spiral shaft body, and the cross shaft is fitted into the cross groove.

[0007] Preferably, a telescopic shaft is fixedly connected inside the second connecting sleeve, and a limiting sleeve is fixedly connected to one end of the telescopic shaft. A rotating shaft is rotatably connected inside the limiting sleeve via a bearing, and an abutting rotating block is fixedly connected to one end of the rotating shaft.

[0008] Preferably, an abutment spring is sleeved on the outer surface of the telescopic shaft, one end of the abutment spring is fixedly connected to the inside of the second connecting sleeve, and the other end of the abutment spring is fixedly connected to one end of the limiting sleeve.

[0009] Preferably, the telescopic shaft includes an outer sleeve and a telescopic column, the telescopic column is slidably sleeved inside the outer sleeve, and limit blocks are fixedly connected to both sides of the telescopic column.

[0010] Preferably, a third threaded fixing hole is fixedly provided in the inner center of the outer sleeve, and an insertion hole is fixedly provided in the inner center of the telescopic column. A second locking screw is fixedly connected to the inner thread of the third threaded fixing hole.

[0011] Preferably, the spiral shaft body includes a spiral block, and there are several spiral blocks. A rectangular insert is fixedly connected to one end of the spiral block. A first threaded fixing hole is fixedly opened on the surface of the rectangular insert. A rectangular slot is fixedly opened on the other end of the spiral block. A second threaded fixing hole is fixedly opened on the surface of the spiral block. A first locking screw is threadedly fitted inside the second threaded fixing hole and the first threaded fixing hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model adopts a sleeve-type spiral shaft, which is easy to install and disassemble, and can be quickly disassembled for cleaning. Compared with the traditional bearing-type connection method, it is easier to disassemble and clean.

[0013] 2. This utility model adopts a plug-in combination type of threaded shaft, which can replace the damaged part of the threaded shaft without replacing the whole shaft, thus saving certain resources and having a good economic effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the spiral shaft body of this utility model; Figure 3 This is a schematic diagram of the internal structure of the first connecting sleeve of this utility model; Figure 4 This is a schematic diagram of the structure of the spiral block of this utility model.

[0015] In the diagram: 1. Spiral shaft body; 2. First connecting sleeve; 3. Second connecting sleeve; 4. Rotating motor; 5. Cross groove; 6. Connecting shaft; 7. Cross shaft; 8. Telescopic shaft; 9. Limiting sleeve; 10. Rotating shaft; 11. Abutting block; 12. Outer sleeve; 13. Telescopic column; 14. Limiting block; 17. Spiral block; 18. Rectangular insert; 19. First threaded fixing hole; 20. Rectangular slot; 21. Second threaded fixing hole; 22. First locking screw; 23. Through hole; 24. Third threaded fixing hole; 25. Second locking screw; 26. Abutting spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-4 This utility model provides a technical solution: a novel spiral shaft for a wastewater dewatering machine, comprising a spiral shaft body 1, one end of which is sleeved inside a first connecting sleeve 2, and the other end of which is sleeved inside a second connecting sleeve 3. A rotating motor 4 is fixedly connected to one side of the first connecting sleeve 2, and a connecting shaft 6 is fixedly connected to the rotating motor 4 via a shaft. The connecting shaft 6 is rotatably connected inside the first connecting sleeve 2 via a bearing. A cross shaft 7 is fixedly connected to one end of the connecting shaft 6, and a cross groove 5 is fixedly opened at one end of the spiral shaft body 1. The cross shaft 7 is fitted into the cross groove 5.

[0018] In this embodiment, the spiral shaft body 1 is sleeved inside the first connecting sleeve 2 and the second connecting sleeve 3 at both ends. At this time, the cross groove 5 provided at one end of the spiral shaft body 1 can be sleeved on one side of the connecting shaft 6 that rotates inside the first connecting sleeve 2. The cross shaft 7 provided at one end of the connecting shaft 6 can be locked inside the cross groove 5. After the rotation motor 4 is connected to the external power supply, it can drive the connecting shaft 6 to rotate, thereby limiting the rotation of the spiral shaft body 1. Thus, dehydration treatment can be carried out inside the dehydration shell. This design adopts a sleeve-type spiral shaft, which is convenient to install and disassemble, and can be quickly disassembled for cleaning. Compared with the traditional bearing-type connection method, it is more convenient to disassemble and clean.

[0019] Specifically, a telescopic shaft 8 is fixedly connected inside the second connecting sleeve 3. A limiting sleeve 9 is fixedly connected to one end of the telescopic shaft 8. A rotating shaft 10 is rotatably connected inside the limiting sleeve 9 via a bearing. An abutting rotating block 11 is fixedly connected to one end of the rotating shaft 10.

[0020] In this embodiment, the telescopic shaft 8 can be extended and retracted to adjust the position of the abutting block 11, which facilitates the fitting of the spiral shaft body 1 for installation and disassembly.

[0021] Specifically, an abutment spring 26 is sleeved on the outer surface of the telescopic shaft 8. One end of the abutment spring 26 is fixedly connected to the inside of the second connecting sleeve 3, and the other end of the abutment spring 26 is fixedly connected to one end of the limiting sleeve 9.

[0022] In this embodiment, the extension and retraction of the telescopic shaft 8 is elastically achieved by the abutment spring 26. During the sleeve process, one end of the spiral shaft body 1 is sleeved inside the second connecting sleeve 3, and the abutment rotating block 11 slides inward, thereby compressing the abutment spring 26. After reaching a certain position, the other end of the spiral shaft body 1 can be sleeved inside the first connecting sleeve 2. After releasing the spiral shaft body 1, under the elastic action of the abutment spring 26, the spiral shaft body 1 can elastically abut. At this time, the other end of the spiral shaft body 1 is engaged with the connecting rotating shaft 6, and the other end abuts against the abutment rotating block 11. The rotating shaft 10 is rotatably connected through a bearing. When the connecting rotating shaft 6 rotates, it can drive the spiral shaft body 1 to rotate. At this time, the abutment rotating block 11 rotates through the bearing and can rotate with the spiral shaft body 1.

[0023] Specifically, the telescopic shaft 8 includes an outer sleeve 12 and a telescopic column 13, with the inner side of the outer sleeve 12 slidably fitted with... Telescopic column 13, with limit blocks 14 fixedly connected to both sides of the telescopic column 13.

[0024] In this embodiment, the limiting blocks 14 provided on both sides of the telescopic column 13 can ensure that the telescopic column 13 can only slide inside the outer sleeve 12 and cannot rotate. When the spiral shaft body 1 rotates, it can ensure that the limiting sleeve 9 will not rotate.

[0025] Specifically, the inner center of the outer sleeve 12 is fixedly provided with a third threaded fixing hole 24, the inner center of the telescopic column 13 is fixedly provided with an insertion hole 23, and the inner thread of the third threaded fixing hole 24 is fixedly connected with a second locking screw 25.

[0026] In this embodiment, the extension length of the outer sleeve 12 and the telescopic column 13 can be locked by the second locking screw 25. After the spiral shaft body 1 is installed, the length of the telescopic shaft 8 can be locked by rotating the second locking screw 25. This ensures that the connection of the spiral shaft body 1 is more stable during dehydration rotation, avoiding unstable elastic contact that could affect the dehydration effect.

[0027] Specifically, the spiral shaft body 1 includes a spiral block 17, and there are several spiral blocks 17. A rectangular insert 18 is fixedly connected to one end of the spiral block 17. A first threaded fixing hole 19 is fixedly opened on the surface of the rectangular insert 18. A rectangular slot 20 is fixedly opened on the other end of the spiral block 17. A second threaded fixing hole 21 is fixedly opened on the surface of the spiral block 17. A first locking screw 22 is threadedly connected to the inner threads of the second threaded fixing hole 21 and the first threaded fixing hole 19.

[0028] In this embodiment, the spiral shaft body 1 is assembled using several modules, allowing for direct replacement of damaged sections without replacing the entire spiral shaft, thus saving resources. The rectangular slot insertion method prevents stress on the first locking screw 22 during rotation, resulting in better overall fixation. This design, employing a plug-in assembly of the threaded shaft, allows for replacement of damaged sections without replacing the entire shaft, further saving resources. During use, the second locking screw 25 is first unlocked, releasing the telescopic shaft 8. Then, one end of the spiral shaft body 1 is fitted inside the second connecting sleeve 3, sliding inward against the abutting rotating block 11 to compress the abutting spring 26. After reaching a certain position, the other end of the spiral shaft body 1 is fitted inside the first connecting sleeve 2. Upon releasing the spiral shaft body 1, the elasticity of the abutting spring 26 allows the spiral shaft body 1 to elastically abut against the connecting shaft 6. At this point, the other end of the spiral shaft body 1 engages with the connecting rotating shaft 6, while the other end abuts against the abutting rotating block 11. After installation, the second locking screw 25 is rotated. Locking screw 25 locks the telescopic shaft 8. Similarly, the second locking screw 25 can be unscrewed to release the telescopic shaft 8 from its locked state, allowing the spiral shaft body 1 to be removed for cleaning. When the rotating motor 4 comes into contact with an external power source, it can drive the connecting shaft 6 to rotate, thereby causing the spiral shaft body 1 to rotate. When the spiral shaft body 1 is damaged, the second locking screw 25 can be unscrewed to remove the spiral shaft body 1. At this time, the first locking screw 22 can be unscrewed to remove the damaged part for replacement. After replacement, it can be plugged in and locked, quickly completing the replacement of the damaged part without replacing the whole, which is more convenient.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel screw shaft for a wastewater dewatering machine, comprising a screw shaft body (1), characterized in that: One end of the spiral shaft body (1) is sleeved inside the first connecting sleeve (2), and the other end of the spiral shaft body (1) is sleeved inside the second connecting sleeve (3). A rotating motor (4) is fixedly connected to one side of the first connecting sleeve (2). The rotating motor (4) is fixedly connected to a connecting shaft (6) through a shaft. The connecting shaft (6) is rotatably connected inside the first connecting sleeve (2) through a bearing. A cross shaft (7) is fixedly connected to one end of the connecting shaft (6). A cross groove (5) is fixedly opened at one end of the spiral shaft body (1). The cross shaft (7) is fitted inside the cross groove (5).

2. The novel screw shaft for a wastewater dewatering machine according to claim 1, characterized in that: The second connecting sleeve (3) is fixedly connected to a telescopic shaft (8), and a limiting sleeve (9) is fixedly connected to one end of the telescopic shaft (8). A rotating shaft (10) is rotatably connected to the inside of the limiting sleeve (9) through a bearing, and an abutting rotating block (11) is fixedly connected to one end of the rotating shaft (10).

3. The novel screw shaft for a wastewater dewatering machine according to claim 2, characterized in that: A retaining spring (26) is sleeved on the outer surface of the telescopic shaft (8). One end of the retaining spring (26) is fixedly connected to the inside of the second connecting sleeve (3), and the other end of the retaining spring (26) is fixedly connected to one end of the limiting sleeve (9).

4. The novel screw shaft for a wastewater dewatering machine according to claim 2, characterized in that: The telescopic shaft (8) includes an outer sleeve (12) and a telescopic column (13). The telescopic column (13) is slidably sleeved inside the outer sleeve (12), and limit blocks (14) are fixedly connected to both sides of the telescopic column (13).

5. The novel screw shaft for a wastewater dewatering machine according to claim 4, characterized in that: The inner center of the outer sleeve (12) is fixedly provided with a third threaded fixing hole (24), and the inner center of the telescopic column (13) is fixedly provided with an insertion hole (23). The inner thread of the third threaded fixing hole (24) is fixedly connected with a second locking screw (25).

6. The novel screw shaft for a wastewater dewatering machine according to claim 1, characterized in that: The spiral shaft body (1) includes a spiral block (17), and there are several spiral blocks (17). A rectangular insert (18) is fixedly connected to one end of the spiral block (17). A first threaded fixing hole (19) is fixedly opened on the surface of the rectangular insert (18). A rectangular slot (20) is fixedly opened on the other end of the spiral block (17). A second threaded fixing hole (21) is fixedly opened on the surface of the spiral block (17). A first locking screw (22) is threaded into the inner threads of the second threaded fixing hole (21) and the first threaded fixing hole (19).

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