Sealing structure of crystal assisting box shaft head

Abstract

The utility model discloses a sealing structure of a shaft head of a crystallization assisting box, belongs to the technical field of crystallization assisting box sealing, and solves the problem that the joint of the existing crystallization assisting box and a stirring shaft is easy to leak. According to the sealing structure, a stirring shaft is arranged on a crystal assisting box, thickening plates are arranged at the two ends of the crystal assisting box, supporting sleeves are connected to the thickening plates in an inserted mode, lengthening shafts are rotationally arranged in the supporting sleeves, connecting holes are formed in one ends of the lengthening shafts on the two sides, and the two connecting holes are connected with the two ends of the stirring shaft respectively. Supporting assemblies are arranged at the other ends of the lengthening shafts on the two sides, and sealing assemblies are arranged between the supporting sleeves and the lengthening shafts. The sealing structure of the crystal assisting box shaft head improves the sealing effect, prevents liquid glucose from leaking from sealing positions on the two sides, reduces the maintenance cost and the labor intensity of workers, and has the advantages of being convenient to use and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of crystal-assisting box sealing, in particular to a sealing structure of a crystal-assisting box shaft head. Background Art

[0002] During the sugar production process, the mixture of sucrose crystals obtained from boiling sugar and sugar liquid (mother liquor) is called sugar paste. The sugar paste then enters the crystallization box to assist in crystallization, allowing the sugar crystals to continue to absorb free sucrose molecules in the mother liquor, improving sucrose recovery and making the crystals precipitate more completely. The bottom of the crystallization box is a spiral agitator. The end of the agitator shaft of the spiral agitator extends out of the box and is connected to the drive mechanism. However, due to the design problem of the crystallization box stirring, the agitator shaft needs support sleeves at both ends of the crystallization box, and a sealing ring is set in the support sleeve to prevent the sugar paste from leaking from the shaft head. During the stirring process, the agitator shaft is affected by its own gravity, and the support points are all on the support sleeves at both ends of the crystallization box. The sealing ring is squeezed for a long time, resulting in deformation, a short service life, poor sealing performance, and frequent sugar leakage, which requires the replacement of the sealing ring. While increasing maintenance costs, the sealing ring is embedded inside, and the entire agitator shaft needs to be disassembled each time for replacement, which is a lot of work and increases the labor intensity of employees. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a sealing structure for the shaft head of the crystal assist box in response to the above-mentioned deficiencies in the prior art, thereby improving the sealing effect and preventing the leakage of sugar solution from the seals on both sides, while reducing maintenance costs and lowering the labor intensity of employees. The invention has the characteristics of being easy to use and highly practical.

[0004] The technical solution adopted by the utility model is: a sealing structure for the shaft head of a crystal-assisting box, a stirring shaft is provided on the crystal-assisting box, thickened plates are provided at both ends of the crystal-assisting box, support sleeves are inserted into the thickened plates, an extended shaft rotates in the support sleeve, one end of the extended shaft on both sides is provided with a connecting hole, the two connecting holes are respectively connected to the two ends of the stirring shaft, the other end of the extended shaft on both sides is provided with a supporting assembly, and a sealing assembly is provided between the support sleeve and the extended shaft.

[0005] As a further improvement, the support assembly includes a bearing seat and a bearing, the bearing is installed in the bearing seat, the inner ring of the bearing is sleeved on the extended shaft, and the bearing seat is installed on the support frame.

[0006] Furthermore, sealing rings are provided between the two ends of the bearing seat and the extended shaft.

[0007] Furthermore, the sealing assembly includes a sealing sleeve and a sealing filler, a first mounting hole and a second mounting hole are provided in the support sleeve, the sealing sleeve is installed in the first mounting hole, and the sealing filler is filled in the second mounting hole.

[0008] Furthermore, the sealing sleeve is made of copper, and the sealing filler is made of packing.

[0009] Furthermore, a sealing cover is provided at one end of the support sleeve close to the sealing filler, and the sealing cover is detachably connected to the support sleeve via a locking screw.

[0010] Furthermore, the support sleeve is provided with a connecting boss, and the connecting boss is provided with a plurality of connecting bolts, and the connecting bolts pass through the connecting boss and are threadedly connected to the thickened plate.

[0011] Beneficial effects

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] The utility model provides a sealing structure for the shaft head of a crystal-assisting box, which effectively delays the length of the original stirring shaft by setting an extended shaft, so that a support assembly can be provided on the extended shaft, and the bearings and bearing seats of the support assembly are used to support the stirring shaft, thereby reducing the force on the connection between the stirring shaft and the crystal-assisting box, effectively protecting the seals at the connection from damage by extrusion and deformation, delaying the service life of the sealing assembly, and avoiding leakage of sugar solution from the seals on both sides, reducing the occurrence of faults, and providing a support sleeve, and providing a sealing sleeve and a sealing filler between the support sleeve and the extended shaft, the sealing sleeve serves as the first layer of sealing, and the sealing filler serves as the second layer of sealing, and the combination of the two has a better sealing effect and improves the sealing level, and because the sealing sleeve is made of copper, it has good wear resistance, a long service life and high equipment stability, and is connected by connecting bolts through the support sleeve, so that the sealing sleeve can be disassembled and replaced at a later stage, thereby improving maintenance efficiency, and has the characteristics of strong practicality and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the structure at point A in the middle;

[0016] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point B.

[0017] Among them: 1-crystallization box, 2-support assembly, 3-sealing assembly, 4-stirring shaft, 5-support frame, 6-thickening plate, 7-connecting boss, 8-connecting bolt, 9-support sleeve, 10-connecting hole, 11-locking screw, 12-sealing cover, 13-extended shaft, 14-sealing ring, 21-bearing seat, 22-bearing, 31-sealing sleeve, 32-sealing packing. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0019] See Figure 1-3 As shown, the utility model provides a sealing structure for the shaft head of a crystal-assisting box, a stirring shaft 4 is provided on the crystal-assisting box 1, thickened plates 6 are provided at both ends of the crystal-assisting box 1, support sleeves 9 are inserted on the thickened plates 6, an extended shaft 13 is rotated in the support sleeve 9, and a connecting hole 10 is provided at one end of the extended shafts 13 on both sides, and the two connecting holes 10 are respectively connected to the two ends of the stirring shaft 4, a supporting assembly 2 is provided at the other end of the extended shafts 13 on both sides, and a sealing assembly 3 is provided between the support sleeve 9 and the extended shaft 13. By arranging the extended shafts 13 at both ends, the length of the two ends of the original stirring shaft 4 is effectively delayed, so that support assemblies 2 can be provided on both ends of the extended shaft 13, and the bearings 22 and the bearing seats 21 of the support assembly 2 are used to support the stirring shaft 4, thereby reducing the stirring The stress at the connection between the shaft 4 and the crystal-assisting box 1 effectively protects the seal at the connection from being squeezed, deformed and damaged, delays the service life of the sealing component 3, avoids leakage of sugar solution from the seals on both sides, and reduces the occurrence of faults. By setting a support sleeve 9, and providing a sealing sleeve 31 and a sealing filler 32 between the support sleeve 9 and the extended shaft 13, the sealing sleeve 31 acts as the first layer of sealing, and the sealing filler 32 acts as the second layer of sealing. The combination of the two has a better sealing effect and improves the sealing level. In addition, since the sealing sleeve 31 is made of copper, it has good wear resistance, a long service life and high equipment stability. By setting the support sleeve 9 and connecting bolts 8 for connection, it is convenient to disassemble and replace the sealing sleeve 31 at a later time, thereby improving maintenance efficiency.

[0020] Specifically, the support assembly 2 includes a bearing seat 21 and a bearing 22. The bearing 22 is installed in the bearing seat 21. The inner ring of the bearing 22 is arranged on the extended shaft 13. The bearing seat 21 is installed on the support frame 5. The bearing seat 21 has a hollow structure. The bearing 22 is installed in the middle position inside the bearing seat 2 to facilitate the staff to inject lubricating oil into the bearing seat to delay the service life of the bearing 22.

[0021] Preferably, a sealing ring 14 is provided between the two ends of the bearing seat 21 and the extension shaft 13 to play a sealing role and prevent the lubricating oil from leaking out.

[0022] Furthermore, the sealing assembly 3 includes a sealing sleeve 31 and a sealing filler 32. A first mounting hole 15 and a second mounting hole 16 are provided in the support sleeve 9. The sealing sleeve 31 is installed in the first mounting hole 15, and the sealing filler 32 is filled in the second mounting hole 16. The sealing sleeve 31 serves as the first layer of sealing, and the sealing filler 32 serves as the second layer of sealing. The combination of the two has a better sealing effect and improves the sealing level.

[0023] Furthermore, the sealing sleeve 31 is made of copper, and the sealing filler 32 is made of packing. The sealing sleeve 31 is made of copper, has good wear resistance, long service life, and high equipment stability. The use of the sealing filler 32 is convenient for installation and later replacement.

[0024] Furthermore, a sealing cover 12 is provided at one end of the support sleeve 9 close to the sealing filler 32. The sealing cover 12 is detachably connected to the support sleeve 9 through a locking screw 11. The sealing filler 32 can be replaced by removing the sealing cover 12, which is convenient for later maintenance and replacement.

[0025] Furthermore, a connecting boss 7 is provided on the support sleeve 9, and a plurality of connecting bolts 8 are provided on the connecting boss 7. The connecting bolts 8 pass through the connecting boss 7 and are threadedly connected to the thickened plate 6. When the sealing sleeve 31 needs to be replaced, it can be replaced by disassembling the entire support sleeve 9 without disassembling the entire stirring shaft 4, so that the sealing sleeve 31 can be disassembled and replaced later, thereby improving maintenance efficiency.

[0026] When in use, the sealing structure of the shaft head of the crystal assist box of this embodiment effectively delays the length of the two ends of the original stirring shaft 4 by arranging extended shafts 13 at both ends, so that support components 2 can be provided on both ends of the extended shaft 13, and the bearings 22 and bearing seats 21 of the support components 2 are used to support the stirring shaft 4, thereby reducing the force on the connection between the stirring shaft 4 and the crystal assist box 1, effectively protecting the seals at the connection from damage by extrusion and deformation, delaying the service life of the sealing component 3, and preventing the sugar solution from leaking from the seals on both sides, reducing the occurrence of faults, by arranging a support sleeve 9, and arranging a sealing sleeve 31 and a sealing filler 32 between the support sleeve 9 and the extended shaft 13, the sealing sleeve 31 acts as the first layer of sealing, and the sealing filler 32 acts as the second layer of sealing, the combination of the two, better sealing effect, and improved sealing level, and because the sealing sleeve 31 is made of copper, it has good wear resistance, long service life, and high equipment stability, and is connected by the support sleeve 9 with connecting bolts 8, so that the sealing sleeve 31 can be disassembled and replaced later, thereby improving maintenance efficiency. The utility model provides a sealing structure for the crystal-assisting box shaft head, which improves the sealing effect and prevents leakage of sugar solution from the sealing parts on both sides, while reducing maintenance costs and lowering the labor intensity of employees. It is easy to use and highly practical.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A sealing structure for a die-casting box shaft head, characterized in that: A stirring shaft (4) is provided on the crystal-assisting box (1), and thickened plates (6) are provided at both ends of the crystal-assisting box (1), a support sleeve (9) is inserted into the thickened plate (6), and an extension shaft (13) rotates in the support sleeve (9), and one end of the extension shaft (13) on both sides is provided with a connecting hole (10), and the two connecting holes (10) are respectively connected to the two ends of the stirring shaft (4), and the other end of the extension shaft (13) on both sides is provided with a supporting assembly (2), and a sealing assembly (3) is provided between the support sleeve (9) and the extension shaft (13).

2. The sealing structure of the die-assisted box shaft head according to claim 1, characterized in that: The support assembly (2) includes a bearing seat (21) and a bearing (22), wherein the bearing (22) is installed in the bearing seat (21), the inner ring of the bearing (22) is sleeved on the extended shaft (13), and the bearing seat (21) is installed on the support frame (5).

3. The sealing structure of the die-assisted box shaft head according to claim 2, characterized in that: Sealing rings (14) are provided between the two ends of the bearing seat (21) and the extended shaft (13).

4. The sealing structure of the die-assisted box shaft head according to claim 1, characterized in that: The sealing assembly (3) includes a sealing sleeve (31) and a sealing filler (32); a first mounting hole (15) and a second mounting hole (16) are provided in the support sleeve (9); the sealing sleeve (31) is installed in the first mounting hole (15); and the sealing filler (32) is filled in the second mounting hole (16).

5. The sealing structure of the die-assisted box shaft head according to claim 4, characterized in that: The sealing sleeve (31) is made of copper, and the sealing filler (32) is made of packing.

6. The sealing structure of the die-assisted box shaft head according to claim 4, characterized in that: A sealing cover (12) is provided at one end of the support sleeve (9) close to the sealing filler (32), and the sealing cover (12) is detachably connected to the support sleeve (9) via a locking screw (11).

7. The sealing structure of the die-assisted box shaft head according to claim 1, characterized in that: The support sleeve (9) is provided with a connecting boss (7), and the connecting boss (7) is provided with a plurality of connecting bolts (8). The connecting bolts (8) pass through the connecting boss (7) and are threadedly connected to the thickened plate (6).

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