Spiral shaft structure of stacked spiral dehydrator

Abstract

The utility model relates to the technical field of spiral shafts, and provides a spiral shaft structure of a stacked spiral dehydrator, which comprises a base, mounting frames are fixed on two sides of the top end of the base, a dismounting structure is arranged between every two adjacent mounting frames, and each dismounting structure comprises a support shaft, a dehydration shaft, a spiral blade, a sliding chute, a mounting bolt, a limiting groove and a limiting block. By arranging the dismounting structure, during installation, the limiting block is clamped into the limiting groove, the limiting block and the supporting shaft are fixed to each other, then the dewatering shaft penetrates into the cavity in the dewatering shaft, and when the dewatering shaft penetrates into the cavity, it is guaranteed that the limiting block slides in the sliding groove; at the moment, the supporting shaft and the dewatering shaft are clamped together through the limiting blocks and the sliding grooves, and then the supporting shaft and the dewatering shaft are installed together through the installation bolts, so that the fixing stability can be improved, the function that the dewatering shaft and the spiral blades are convenient to install and detach is achieved, and the convenience of the spiral shaft structure in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw shafts, in particular to a screw shaft structure for a screw stack dehydrator. Background Art

[0002] With the rapid development of modern environmental protection, sludge treatment has become an important topic that has attracted much attention. As an advanced technical equipment, the screw stack sludge dewatering machine has demonstrated its unique advantages and broad application prospects in the field of sludge treatment. The screw shaft is the core component of the screw stack dewatering machine, and its structural design is directly related to the performance and use effect of the equipment. Therefore, it is necessary to design a screw shaft structure for the screw stack dewatering machine;

[0003] To this end, the patent with announcement number CN220723930U discloses a spiral shaft for a spiral stacking sludge dewatering machine, including a main body mechanism, a body mechanism and a connecting mechanism, wherein the body mechanism is located at the outer end on the right side of the main body mechanism, and the connecting mechanism is located at the right end of the main body mechanism, and the main body mechanism includes a support frame, a driving component, a rotating rod, a built-in hole, an electric push rod, a retaining spring, a clamping block, a chamber, a heating rod and a conduction block, wherein the driving component is fixedly mounted on the left end of the supporting frame, the rotating rod is fixedly mounted on the right end of the driving component, and the built-in hole is fixedly arranged inside the outer end of the rotating rod. The spiral shaft for the spiral stacking sludge dewatering machine first sets the rotating rod and the spiral leaf into a detachable split structure by setting the electric push rod and the clamping block, thereby increasing the maintenance and replacement of the structure during use, and then sets a heating rod inside the rotating rod, which can improve the efficiency of the spiral stacking sludge dewatering machine in sludge dewatering;

[0004] Although the above-mentioned spiral shaft can improve the dehydration efficiency by heating the rod during use, the spiral shaft needs to be replaced as a whole when the spiral blades on the outside of the spiral shaft are damaged, which is a waste of resources. Therefore, it is necessary to design a spiral shaft structure that can facilitate the replacement of the spiral blades. Utility Model Content

[0005] The utility model aims to provide a screw shaft structure for a screw stack dehydrator, so as to solve the defect that the screw shaft needs to be replaced as a whole when the spiral blades on the outer side of the existing screw shaft are damaged, which wastes resources during replacement.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a spiral shaft structure of a spiral stacking dehydrator, comprising a base;

[0007] Mounting frames are fixed on both sides of the top of the base, and disassembly and assembly structures are provided between adjacent mounting frames, and the disassembly and assembly structure includes a support shaft, a dehydration shaft, a spiral blade, a slide groove, a mounting bolt, a limit groove and a limit block;

[0008] The support shaft is arranged between adjacent mounting frames, a dehydration shaft is arranged on the outside of the support shaft, a spiral blade is fixed on the outside of the dehydration shaft, a sliding groove is evenly provided at one end inside the dehydration shaft, the limiting groove is evenly provided on the outer wall of the support shaft near the end of the sliding groove, the inner wall of the limiting groove is provided with a limiting block, and a mounting bolt is evenly passed through the end of the dehydration shaft away from the sliding groove;

[0009] Both ends of the support shaft are fixed with driving components, and the outer walls of the dehydration shaft and the spiral blades are fixed with wear-resistant structures.

[0010] Furthermore, the driving assembly includes a driving motor, a rotating shaft, a mounting plate and a connecting shaft. The driving motor is installed on the outer wall of one side of the mounting frame, the rotating shaft passes through the interior of the mounting frame, the mounting plates are bolted to both ends of the support shaft, and the connecting shaft is fixed to the outer wall of the mounting plate away from the driving motor.

[0011] Furthermore, the output end of the driving motor is fixedly connected to one end of the rotating shaft, and the end of the connecting shaft away from the mounting plate extends to the interior of the mounting bracket and is rotatably connected to the mounting bracket.

[0012] Furthermore, the outer diameter of the dehydration shaft at one end close to the driving motor is smaller than the outer diameter of the dehydration shaft at one end close to the connecting shaft.

[0013] Furthermore, the chute is symmetrically distributed on both sides of the dehydration shaft, and one end of the mounting bolt extends to the inside of the support shaft.

[0014] Furthermore, the limiting block and the support shaft form an interference fit structure through the limiting groove.

[0015] Furthermore, the limiting block and the dehydration shaft form a sliding structure through a sliding groove.

[0016] Furthermore, the wear-resistant structure includes an adhesive layer, a first wear-resistant layer and a second wear-resistant layer. The adhesive layer is fixed on the outer wall of the dewatering shaft and the spiral blade. The first wear-resistant layer is fixed on the outer side of the adhesive layer. The second wear-resistant layer is fixed on the outer side of the first wear-resistant layer.

[0017] Furthermore, the first wear-resistant layer is a titanium dioxide coating, and the second wear-resistant layer is a molybdenum disulfide coating.

[0018] The utility model provides a spiral shaft structure of a screw press dehydrator, which has the following advantages:

[0019] By providing a disassembly and assembly structure, during installation, the limit block is first engaged into the interior of the limit groove, the limit block and the support shaft are fixed to each other, and then the dehydration shaft is inserted into the cavity inside the dehydration shaft. When inserting, the limit block is ensured to slide inside the slide groove. At this time, the support shaft and the dehydration shaft have been engaged together through the limit block and the slide groove, and the support shaft and the dehydration shaft are then installed together through the installation bolt, which can improve the stability of the fixation, realize the function of facilitating the installation and disassembly of the dehydration shaft and the spiral blade, and improve the convenience of the spiral shaft structure when in use;

[0020] By providing a wear-resistant structure, the first wear-resistant layer is a titanium dioxide coating, which has excellent wear resistance and is often used in situations requiring high hardness and corrosion resistance. The second wear-resistant layer is a molybdenum disulfide coating, which has good lubrication properties, can reduce friction and wear, and can prevent mud from damaging the spiral shaft. It can increase the service life of the spiral shaft, thereby realizing the wear-resistant function of the device and improving the service life of the spiral shaft structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0023] Figure 3 For the utility model Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 4 It is a side cross-sectional structural schematic diagram of the utility model;

[0025] Figure 5 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0026] Explanation of the reference numerals in the figure: 1. Base; 2. Mounting frame; 3. Driving assembly; 31. Driving motor; 32. Rotating shaft; 33. Mounting plate; 34. Connecting shaft; 4. Disassembly and assembly structure; 41. Support shaft; 42. Dehydration shaft; 43. Spiral blade; 44. Slide; 45. Mounting bolt; 46. Limiting groove; 47. Limiting block; 5. Wear-resistant structure; 51. Adhesive layer; 52. First wear-resistant layer; 53. Second wear-resistant layer. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5 The utility model provides a spiral shaft structure of a screw stack dehydrator, which includes a base 1.

[0029] Reference Figure 1-Figure 5 , mounting frames 2 are fixed on both sides of the top of the base 1, and disassembly structures 4 are provided between adjacent mounting frames 2. The disassembly structure 4 includes a support shaft 41, a dehydration shaft 42, a spiral blade 43, a slide 44, a mounting bolt 45, a limiting groove 46 and a limiting block 47. The support shaft 41 is provided between adjacent mounting frames 2, a dehydration shaft 42 is provided on the outside of the support shaft 41, a spiral blade 43 is fixed on the outside of the dehydration shaft 42, a slide 44 is evenly provided at one end of the dehydration shaft 42, and the limiting groove 46 is evenly provided at one end of the support shaft 41 near the slide 44 On the outer wall, the inner wall of the limiting groove 46 is provided with a limiting block 47, and the end of the dehydration shaft 42 away from the slide 44 is evenly penetrated by a mounting bolt 45. The outer diameter of the dehydration shaft 42 close to the drive motor 31 is smaller than the outer diameter of the dehydration shaft 42 close to the connecting shaft 34. The slide 44 is symmetrically distributed on both sides of the dehydration shaft 42, and one end of the mounting bolt 45 extends to the inside of the support shaft 41. The limiting block 47 and the support shaft 41 form an interference fit structure through the limiting groove 46, and the limiting block 47 and the dehydration shaft 42 form a sliding structure through the slide 44.

[0030] External power supply, during installation, first engage the limit block 47 into the inside of the limit groove 46, fix the limit block 47 and the support shaft 41 to each other, and then pass the dehydration shaft 42 into the cavity inside the dehydration shaft 42. When inserting, ensure that the limit block 47 slides inside the slide groove 44. At this time, the support shaft 41 and the dehydration shaft 42 have been engaged together through the limit block 47 and the slide groove 44. Then, install the support shaft 41 and the dehydration shaft 42 together through the installation bolt 45 to improve the stability of the fixation.

[0031] Reference Figure 1-Figure 5, both ends of the support shaft 41 are fixed with a drive assembly 3, and the drive assembly 3 includes a drive motor 31, a rotating shaft 32, a mounting plate 33 and a connecting shaft 34, the drive motor 31 is mounted on the outer wall of one side of the mounting frame 2, the rotating shaft 32 runs through the interior of the mounting frame 2, the mounting plates 33 are bolted to both ends of the support shaft 41, and the connecting shaft 34 is fixed to the outer wall of the mounting plate 33 on the side away from the drive motor 31, the output end of the drive motor 31 is fixedly connected to one end of the rotating shaft 32, and the end of the connecting shaft 34 away from the mounting plate 33 extends to the interior of the mounting frame 2 and is rotatably connected to the mounting frame 2.

[0032] Connect an external power supply to start the drive motor 31. The rotation of the drive motor 31 will drive the rotating shaft 32 to rotate. The rotation of the rotating shaft 32 will drive the mounting plate 33 to rotate. The rotation of the mounting plate 33 will drive the support shaft 41 to rotate, thereby driving the dehydration shaft 42 and the spiral blade 43 to rotate. When the support shaft 41 rotates, it is connected to the mounting frame 2 through the connecting shaft 34 to ensure stability during rotation.

[0033] Reference Figure 1-Figure 5 A wear-resistant structure 5 is fixed on the outer walls of the dewatering shaft 42 and the spiral blade 43. The wear-resistant structure 5 includes a bonding layer 51, a first wear-resistant layer 52 and a second wear-resistant layer 53. The bonding layer 51 is fixed on the outer walls of the dewatering shaft 42 and the spiral blade 43. The first wear-resistant layer 52 is fixed on the outside of the bonding layer 51. The second wear-resistant layer 53 is fixed on the outside of the first wear-resistant layer 52. The first wear-resistant layer 52 is a titanium dioxide coating, and the second wear-resistant layer 53 is a molybdenum disulfide coating.

[0034] The first wear-resistant layer 52 is a titanium dioxide coating, which has excellent wear resistance and is often used in situations requiring high hardness and corrosion resistance. The second wear-resistant layer 53 is a molybdenum disulfide coating, which has good lubrication properties, can reduce friction and wear, and can prevent mud from damaging the screw shaft, thereby increasing the service life of the screw shaft.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screw shaft structure for a screw press dehydrator, comprising a base (1); Its characteristics are: Mounting frames (2) are fixed on both sides of the top of the base (1), and disassembly and assembly structures (4) are provided between adjacent mounting frames (2). The disassembly and assembly structure (4) includes a support shaft (41), a dehydration shaft (42), a spiral blade (43), a slide groove (44), a mounting bolt (45), a limiting groove (46) and a limiting block (47); The support shaft (41) is arranged between adjacent mounting frames (2), a dehydration shaft (42) is arranged on the outside of the support shaft (41), a spiral blade (43) is fixed on the outside of the dehydration shaft (42), a sliding groove (44) is uniformly provided at one end inside the dehydration shaft (42), the limiting groove (46) is uniformly provided on the outer wall of the support shaft (41) close to the sliding groove (44), the inner wall of the limiting groove (46) is provided with a limiting block (47), and a mounting bolt (45) is uniformly passed through the end of the dehydration shaft (42) away from the sliding groove (44); Both ends of the support shaft (41) are fixed with driving components (3), and the outer walls of the dehydration shaft (42) and the spiral blade (43) are fixed with wear-resistant structures (5).

2. The screw shaft structure of the screw press dehydrator according to claim 1, characterized in that: The driving assembly (3) comprises a driving motor (31), a rotating shaft (32), a mounting plate (33) and a connecting shaft (34); the driving motor (31) is mounted on an outer wall of one side of the mounting frame (2); the rotating shaft (32) passes through the interior of the mounting frame (2); the mounting plates (33) are bolted to both ends of the supporting shaft (41); and the connecting shaft (34) is fixed to the outer wall of the mounting plate (33) on a side away from the driving motor (31).

3. The screw shaft structure of the screw press dehydrator according to claim 2, characterized in that: The output end of the driving motor (31) is fixedly connected to one end of the rotating shaft (32), and the end of the connecting shaft (34) away from the mounting plate (33) extends to the interior of the mounting frame (2) and is rotatably connected to the mounting frame (2).

4. The screw shaft structure of a screw press dehydrator according to claim 1, characterized in that: The outer diameter of the dehydration shaft (42) at one end close to the driving motor (31) is smaller than the outer diameter of the dehydration shaft (42) at one end close to the connecting shaft (34).

5. The screw shaft structure of the screw press dehydrator according to claim 1, characterized in that: The chute (44) is symmetrically distributed on both sides of the interior of the dehydration shaft (42), and one end of each mounting bolt (45) extends to the interior of the support shaft (41).

6. The screw shaft structure of a screw press dehydrator according to claim 1, characterized in that: The limiting block (47) and the supporting shaft (41) form an interference fit structure through the limiting groove (46).

7. The screw shaft structure of a screw press dehydrator according to claim 1, characterized in that: The limiting block (47) and the dehydration shaft (42) form a sliding structure through a sliding groove (44).

8. The screw shaft structure of a screw press dehydrator according to claim 1, characterized in that: The wear-resistant structure (5) comprises a bonding layer (51), a first wear-resistant layer (52) and a second wear-resistant layer (53); the bonding layer (51) is fixed to the outer walls of the dewatering shaft (42) and the spiral blade (43); the first wear-resistant layer (52) is fixed to the outer side of the bonding layer (51); and the second wear-resistant layer (53) is fixed to the outer side of the first wear-resistant layer (52).

9. The screw shaft structure of the screw press dehydrator according to claim 8, characterized in that: The first wear-resistant layer (52) is a titanium dioxide coating, and the second wear-resistant layer (53) is a molybdenum disulfide coating.

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