Main shaft lifting device for wet process
By designing a spindle lifting device for wet processes, the problems of easy corrosion of the agitator spindle in wet environments and difficulty in cleaning the bottom of the hopper were solved. This achieved waterproofing of the agitator spindle and automated cleaning, improving the operational stability and production continuity of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-06
AI Technical Summary
In wet processes, the agitator shaft is in a wet environment, where water easily corrodes the shaft-to-shaft connection points and bearings, leading to equipment corrosion and electrical system failures, affecting production continuity and stability. Furthermore, cleaning the bottom of the hopper is difficult and can easily cause cross-contamination of materials.
Design a spindle lifting device for wet cleaning, including a hollow shaft motor, a hollow drive shaft, a lifting shaft, a base, a cleaning component, a waterproof component, and a drainage component. The lifting component automatically changes the height of the agitator, and the waterproof and drainage components prevent water erosion and contamination, achieving thorough cleaning.
It achieves waterproofing of the agitator shaft, automates cleaning, reduces equipment failure risk, lowers maintenance costs, and improves production continuity and stability.
Smart Images
Figure CN223969809U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical engineering, and more specifically, it relates to a spindle lifting device for wet processes. Background Technology
[0002] In wet processes across many industrial sectors, the hoppers need to be cleaned after mixing different materials. The significant distance between the agitator and the bottom of the hopper makes cleaning the sidewalls at the bottom difficult, failing to meet the requirements of the cleaning stage and easily causing cross-contamination of materials. Furthermore, since the agitator shaft is in a wet environment, water can flow into critical parts such as the shaft-to-shaft connection points and bearings, causing water erosion of the agitator shaft and its connecting parts. This not only accelerates component corrosion but may also lead to short circuits in the electrical system, causing equipment malfunctions or even paralysis, severely affecting the continuity and stability of production, and increasing maintenance costs and safety risks.
[0003] For the reasons mentioned above, the problem addressed in this application is how to design a device that can lift the main shaft of the agitator and has a waterproof function. Utility Model Content
[0004] To address the shortcomings of existing technologies, a spindle lifting device for wet processes is provided. This device can lift the agitator spindle, and the spindle is waterproof.
[0005] To achieve the above objectives, the following technical solution is provided: a spindle lifting device for wet processing, comprising a hollow shaft motor, a hollow transmission shaft passing through the output shaft of the hollow shaft motor and forming a keyway with the output shaft, a lifting shaft passing through the hollow transmission shaft and forming a keyway with the hollow transmission shaft, a base connected to the hollow shaft motor, a hopper mounted on the base, a cleaning assembly mounted above the base and connected to the lifting shaft and the hollow transmission shaft, a lifting assembly connected to the lifting shaft and used to change the height of the lifting shaft, and a waterproof assembly and a drainage assembly disposed in the connection gap between the hollow transmission shaft and the lifting shaft;
[0006] The base is provided with a drainage hole for drainage. The waterproof component and the drainage component are both installed in the connection gap between the hollow drive shaft and the lifting shaft corresponding to the base. The drainage component includes a first seal fixedly connected to the lifting shaft, a second seal fixedly connected to the hollow drive shaft below the first seal, a through hole on the hollow drive shaft and located between the first seal and the second seal, and a plug inserted into the through hole. The first seal and the second seal both seal the gap between the hollow drive shaft and the lifting shaft. The first seal moves with the lifting shaft, the second seal is fixed on the hollow drive shaft, and the plug is used to open and close the through hole.
[0007] In a further optimization of this utility model, the sealing member is configured as a T-shape, with one end of the sealing member located outside the hollow drive shaft and abutting against the outside of the hollow drive shaft to block the through hole, and the other end fitting into the through hole for insertion.
[0008] In a further optimization of this utility model, the lifting assembly includes a cylinder, guide columns disposed on both sides of the cylinder, and a movable component connected to the cylinder and the guide columns. The movable component moves along the fixed trajectory of the guide columns, and the movable component and the cylinder cooperate with each other to drive the lifting shaft to move.
[0009] In a further optimization of this utility model, the drainage assembly also includes a compression spring, with the two ends of the compression spring fixedly connected to the sealing component and the outer side of the hollow drive shaft, respectively.
[0010] In a further optimization of this utility model, the waterproof component includes a waterproof element and an annular groove coaxially arranged with the waterproof element. The waterproof element is fixedly connected to a hollow drive shaft. The annular groove is filled with water-absorbing resin. The water-absorbing resin absorbs water and expands to abut against the annular groove. The expansion and deformation of the annular groove abuts against the lifting shaft and seals the gap between the lifting shaft and the waterproof element.
[0011] In a further optimization of this invention, the hollow drive shaft is provided with a limiting ring, which is used to prevent the lifting shaft from moving too far upward and causing it to fall off.
[0012] In a further optimization of this utility model, the cleaning assembly includes a stirring paddle and a fan blade. The stirring paddle is fixedly connected to the lifting shaft, and the fan blade is disposed above the stirring paddle and fixedly connected to the stirring paddle.
[0013] The technical solution has the following advantages: it can improve the main shaft of the stirring paddle, and the main shaft has a waterproof effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a planar structure of a spindle lifting device used in wet processes.
[0015] Figure 2 This is a three-dimensional structural diagram of the waterproof device.
[0016] Figure 3 This is a half-section diagram of the waterproof device.
[0017] Figure 4 This is a cross-sectional schematic diagram of the waterproof device.
[0018] Reference numerals: 1. Hollow shaft motor; 11. Output shaft; 2. Hollow transmission shaft; 21. Through hole; 22. Limiting ring; 3. Lifting shaft; 4. Base; 41. Drainage hole; 5. Hopper; 6. Cleaning assembly; 61. Agitator; 62. Fan blade; 7. Lifting assembly; 71. Cylinder; 72. Guide column; 73. Moving part; 8. Waterproof assembly; 81. First seal; 82. Second seal; 83. Waterproof component; 84. Ring groove; 841. Water-absorbing resin; 9. Drainage assembly; 91. Sealing component; 92. Compression spring. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
[0020] Reference Figure 1-4 As shown, a spindle lifting device for wet processing includes a hollow shaft motor 1, a hollow transmission shaft 2 that passes through the output shaft 11 of the hollow shaft motor 1 and forms a keyway with the output shaft 11, a lifting shaft 3 that passes through the hollow transmission shaft 2 and forms a keyway with the hollow transmission shaft 2, a base 4 connected to the hollow shaft motor 1, a hopper 5 mounted on the base 4, a cleaning assembly 6 mounted above the base 4 and connected to the lifting shaft 3 and the hollow transmission shaft 2, a lifting assembly 7 connected to the lifting shaft 3 and used to change the height of the lifting shaft 3, a waterproof assembly 8 and a drainage assembly 9 disposed in the connection gap between the hollow transmission shaft 2 and the lifting shaft 3;
[0021] The base 4 is provided with a drain hole 41 for drainage. The waterproof component 8 and the drainage component 9 are both installed in the connection gap between the hollow drive shaft 2 and the lifting shaft 3 corresponding to the base 4. The drainage component 9 includes a first seal 81 fixedly connected to the lifting shaft 3, a second seal 82 fixedly connected to the hollow drive shaft 2 below the first seal 81, a through hole 21 located on the hollow drive shaft 2 and between the first seal 81 and the second seal 82, and a plug 91 inserted into the through hole 21. The first seal 81 and the second seal 82 both seal the gap between the hollow drive shaft 2 and the lifting shaft 3. The first seal 81 moves with the lifting shaft 3, the second seal 82 is fixed on the hollow drive shaft 2, and the plug 91 is used to open and close the through hole 21.
[0022] After the hopper 5 completes the mixing work, the hopper 5 is placed on the base 4 and can be connected by means of buckles, keyways, etc. Cleaning liquid is added to the hopper 5. The hollow shaft motor 1 drives the lifting shaft 3 and the hollow transmission shaft 2 to rotate. The rotation of the lifting shaft 3 and the hollow transmission shaft 2 drives the cleaning component 6 to rotate. The lifting component 7 drives the lifting shaft 3 to move in height, thereby causing the cleaning component 6 to generate eddies at different levels and thus clean the hopper 5.
[0023] There is a gap between the hollow drive shaft 2 and the lifting shaft 3. When the cleaning is rotated, the cleaning fluid flows into the gap. The first seal 81 can be connected to the lifting shaft 3 by adhesive bonding using an elastic material. The adhesive bonding method has waterproof performance. The second seal 82 can be connected to the hollow drive shaft 2 by adhesive bonding using an elastic material. When the lifting shaft 3 moves upward, it drives the first seal 81 to move upward, while the second seal 82 does not move. During the upward movement of the first seal 81, some of the cleaning fluid flowing into the upper layer of the first seal 81 is squeezed back into the hopper 5. Some of the cleaning fluid is sucked into the sealed space formed by the negative pressure created by the first seal 81 and the second seal 82. When the lifting shaft 3 moves downward, it squeezes this part of the cleaning fluid. The cleaning fluid impacts the sealing member 91, and the sealing member 91 moves outward to open the through hole 21. The cleaning fluid flows into the drain hole 41 of the base 4 through the through hole 21 and flows out of the drain hole 41 to the outside of the equipment. The sealing member 91 can be connected to the hollow drive shaft 2 by a rope lock.
[0024] In existing technologies, traditional cleaning equipment does not have the ability to move the stirring paddle 61 at different heights. After cleaning, the bottom corner of the hopper 5 may still contain residual agitated material, making it impossible to clean thoroughly. Some equipment has a manual adjustment function, which requires disassembling the stirring paddle 61 to change its height in order to thoroughly clean the hopper 5. This cumbersome operation increases labor costs. Now, the lifting component 7 automatically changes the height of the stirring paddle 61, thereby thoroughly cleaning the hopper 5. At the same time, it has a waterproof component 8 and a drainage component 9 to block some of the cleaning liquid that may flow in, thus ensuring the normal operation of the equipment.
[0025] The sealing member 91 is T-shaped. One end of the sealing member 91 is located outside the hollow shaft and abuts against the outside of the hollow shaft to block the through hole 21, and the other end is inserted into the through hole 21.
[0026] according to Figure 3-4 As shown, the horizontal part of the sealing member 91 abuts against the hollow drive shaft 2, thereby completely sealing the through hole 21. The vertical part of the sealing member 91 can be chamfered so that it can be smoothly inserted back into the through hole 21 when the sealing member 91 is completely moved outside the through hole 21. The diameter of the vertical part of the sealing member 91 is smaller than the diameter of the through hole 21. When the sealing member 91 is partially moved out of the through hole 21, the cleaning fluid can be discharged from the gap between the sealing member 91 and the through hole 21.
[0027] The lifting assembly 7 includes a cylinder 71, guide posts 72 disposed on both sides of the cylinder 71, and a movable component 73 connected to the cylinder 71 and the guide posts 72. The movable component 73 moves along the fixed trajectory of the guide posts 72, and the movable component 73 and the cylinder 71 cooperate with each other to drive the lifting shaft 3 to move.
[0028] according to Figure 1 As shown, the movable part 73 can be connected to the guide column 72 by plugging in. The movable part 73 and the cylinder 71 can be in contact. The guide column 72 is perpendicular to the ground. The cylinder 71 drives the movable part 73 to move upward. The movable part 73 moves along the fixed trajectory of the guide column 72, thereby driving the lifting shaft 3 to move vertically. The movement of the lifting shaft 3 drives the cleaning component 6 to move vertically. The vertical movement of the lifting shaft 3 can reduce wear with the base 4. The cleaning component 6 is set at the center of the hopper 5. The vertical movement of the cleaning component 6 can thoroughly clean all parts of the hopper 5.
[0029] The drainage assembly 9 also includes a compression spring 92, with the two ends of the compression spring 92 fixedly connected to the sealing member 91 and the outer side of the hollow drive shaft 2, respectively.
[0030] according to Figure 2-4 As shown, the compression spring 92 can be welded to the outer side of the sealing member 91 and the hollow drive shaft 2. By connecting compression springs 92 with different elastic moduli, the distance the sealing member 91 moves outward from the through hole 21 can be changed. When the elastic modulus of the compression spring 92 is just enough to make the sealing member 91 partially inserted into the through hole 21 while it moves outward from the through hole 21, the cleaning fluid is discharged from the gap between the sealing member 91 and the through hole 21 when the sealing member 91 opens the through hole 21. The compression spring 92 pulls the sealing member 91 back into the through hole 21 by releasing elastic potential energy. The sealing member 91 can close the through hole 21, avoiding the phenomenon that the sealing member 91 cannot be inserted into the through hole 21.
[0031] The waterproof component 8 includes a waterproof element 83 and an annular groove 84 coaxially disposed with the waterproof element 83. The waterproof element 83 is fixedly connected to the hollow drive shaft 2. The annular groove 84 is filled with water-absorbing resin 841. The water-absorbing resin 841 absorbs water and expands to abut against the annular groove 84. The expansion and deformation of the annular groove 84 abuts against the lifting shaft 3 and seals the gap between the lifting shaft 3 and the waterproof element 83.
[0032] according to Figure 3 and Figure 4As shown, the waterproof component 83 can be made of elastic material and can be connected to the hollow drive shaft 2 by adhesive bonding. After the first seal 81 and the second seal 82 cooperate to discharge and block most of the cleaning fluid, some cleaning fluid will still flow into the gap between the second seal 82 and the hollow drive shaft 2 or the lifting shaft 3 and flow into the lower part of the second seal 82. This part of the cleaning fluid flows into the annular groove 84 and is absorbed by the water-absorbing resin 841. The water-absorbing resin 841 absorbs water and expands to squeeze the waterproof component 83, causing the waterproof component 83 to deform. The contact between the waterproof component 83 and the hollow drive shaft 2 and the lifting shaft 3 becomes tighter.
[0033] The hollow drive shaft 2 is equipped with a limit ring 22, which is used to prevent the lifting shaft 3 from moving too far upward and falling off.
[0034] according to Figure 3 and Figure 4 As shown, the limiting ring 22 is made of elastic material to prevent wear when the lifting shaft 3 moves too far upward and comes into contact with the limiting ring 22. The limiting ring 22 can also effectively prevent the lifting shaft 3 from driving the cleaning component to move upward and causing the cleaning component to come into contact with the bottom of the hopper 5, thereby causing wear on the bottom of the hopper 5 and the cleaning component. At the same time, the limiting ring 22 can fix the vertical movement trajectory of the lifting shaft 3 and prevent the upward movement trajectory of the lifting shaft 3 from deviating.
[0035] The cleaning assembly 6 includes a stirring paddle 61 and a fan blade 62. The stirring paddle 61 is fixedly connected to the lifting shaft 3, and the fan blade 62 is located above the stirring paddle 61 and is fixedly connected to the stirring paddle 61.
[0036] according to Figure 1 As shown, the rotation of the lifting shaft 3 drives the rotation of the stirring paddle 61 and the fan blade 62. Rotation at different heights can enhance the vortex intensity and improve the cleaning capacity of the hopper 5.
[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A spindle lifting device for wet processing, characterized in that The hollow shaft motor, the hollow transmission shaft, the lifting shaft, the base, the hopper, the cleaning assembly, the lifting assembly, the waterproof assembly and the drainage assembly are arranged. The base is provided with a drainage hole for drainage.
2. A wet main shaft lifting device according to claim 1, characterized in that, The waterproof assembly and the drainage assembly are arranged at the joint gap between the hollow transmission shaft and the lifting shaft.
3. A wet main shaft lifting device according to claim 2, characterized in that The first sealing member and the second sealing member seal the joint gap between the hollow transmission shaft and the lifting shaft.
4. A wet main shaft lifting device according to claim 3, characterized in that, The first sealing member moves with the lifting shaft, and the second sealing member is fixed on the hollow transmission shaft.
5. A wet main shaft lifting device according to claim 1 or 2 or 3 or 4, characterized in that, The sealing member is arranged in a T shape.
6. A wet main shaft lifting device according to claim 5, characterized in that One end of the sealing member is located outside the hollow transmission shaft and abuts against the outer side of the hollow transmission shaft to block the through hole.
7. A wet main shaft lifting device according to claim 1 or 2 or 3 or 4, characterized in that, The other end of the sealing member is inserted into the through hole. The lifting assembly comprises a cylinder, guide columns arranged on both sides of the cylinder, and a moving member connected with the cylinder and the guide columns. The moving member moves along the fixed track of the guide columns. The moving member and the cylinder are connected with each other to drive the lifting shaft to move. The drainage assembly further comprises a compression spring. The compression spring is fixed at both ends to the sealing member and the outer side of the hollow transmission shaft. The waterproof assembly comprises a waterproof member and an annular groove coaxially arranged with the waterproof member. The waterproof member is fixed to the hollow transmission shaft. The annular groove is filled with water-absorbing resin. The water-absorbing resin absorbs water and expands to abut against the annular groove. The annular groove expands and deforms to abut against the lifting shaft and seal the joint gap between the lifting shaft and the waterproof member. The hollow transmission shaft is provided with a limiting ring. The limiting ring limits the lifting shaft from moving upward excessively and falling off. The cleaning assembly comprises a stirring paddle and a fan blade. The stirring paddle is fixed to the lifting shaft. The fan blade is arranged above the stirring paddle and is fixed to the stirring paddle.