A vertical rotary shaft waterproof structure

Abstract

The present invention relates to the technical field of rotary shaft waterproofing, and is used to meet the waterproofing requirements of shaft components, and specifically relates to a vertical rotary shaft waterproofing structure, including a transmission shaft, on which a synchronously rotating sealing block is fixedly arranged, the sealing block including a top receiving surface that cooperates with the transmission shaft, and the edge of the top receiving surface forms a vertical edge extending downward; and also includes a receiving groove, which is located below the sealing block and forms an annular structure, and the opening of the receiving groove faces upward and is used to receive liquid dripping from the vertical edge. The present invention utilizes the cooperation of the sealing block and the receiving groove to form a waterproof protection structure, which can block the liquid leaking from the top of the transmission shaft and guide it into the receiving groove, and can reduce the splashing of liquid caused by the centrifugal force when the transmission shaft rotates, thereby protecting the shaft components from corrosion damage, and can also protect the surrounding environment components.

Description

Technical Field

[0001] The invention relates to the technical field of rotary shaft waterproofing, which is used to meet the waterproofing requirements of shaft components, and in particular relates to a vertical rotary shaft waterproofing structure. Background Art

[0002] In the production process of dairy products, stirring is an important step in the processing. Generally, the emulsion mixture is placed in a stirring tank and stirred by an internal stirring device. Generally, a stirring blade is arranged in the stirring tank, and the stirring blade is driven to rotate by a driving mechanism at the top or bottom to stir. When large-scale production is carried out, the stirring tank is large in volume and high in height. It is difficult to adopt the scheme of setting the driving mechanism at the top. Not only the height of the whole device is increased, but also the maintenance is affected, and there are great safety hazards. Therefore, most of them adopt the scheme of setting the driving mechanism at the bottom. When the driving mechanism is set at the bottom of the stirring tank, it is necessary to open a hole at the bottom of the stirring tank to set the transmission shaft. However, there are deficiencies in the sealing structure at the transmission shaft. Often, the emulsion mixture leaks after a short period of operation and seeps downward along the transmission shaft, causing erosion and damage to the shaft bearings and other components on the transmission shaft, thereby requiring high-frequency maintenance of the transmission shaft and the components on the shaft, which will also affect the progress of production.

[0003] It can be seen that the current waterproofing scheme for the rotary shaft of the mixing tank still has room for improvement. It should be optimized to improve the protection effect of the components on the shaft and reduce the damage rate of the components on the transmission shaft, so as to ensure the stability of processing and production. Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the existing technology. Summary of the invention

[0004] In order to overcome at least one of the defects mentioned above, the present invention proposes a vertical rotating shaft waterproof structure, which guides the emulsion mixture leaking on the transmission shaft to avoid the components on the transmission shaft, thereby forming protection on the vertical shaft, thereby avoiding erosion and damage of the components on the shaft and effectively extending the service life of the components on the shaft.

[0005] In order to achieve the above purpose, the waterproof device disclosed in the present invention can adopt the following technical solutions:

[0006] A vertical rotating shaft waterproof structure includes a transmission shaft, on which a synchronously rotating sealing block is fixedly arranged, the sealing block includes a top receiving surface that cooperates with the transmission shaft, and the edge of the top receiving surface forms a vertical edge extending downward; it also includes a receiving groove, which is located below the sealing block and forms an annular structure, and the opening of the receiving groove is upward and is used to receive liquid dripping from the vertical edge.

[0007] The waterproof structure disclosed above blocks the liquid leaking from the top through a sealing block, and guides the liquid to the edge and then falls into the receiving groove, thereby blocking the liquid leaking from the top of the transmission shaft, preventing the liquid from flowing downward along the transmission shaft and corroding and damaging the shaft components below, thereby protecting the bearings, transmission box and many other components that cooperate with the shaft and extending the service life.

[0008] Furthermore, in the present invention, the sealing block and the transmission shaft are closely matched and rotate synchronously, so that liquid can be prevented from seeping down from the matching point between the transmission shaft and the sealing block. Here, an optimization is made and one of the feasible options is proposed: a sealing member is provided at the connection between the sealing block and the transmission shaft. When the above solution is adopted, the connection can be waterproofed by a sealing ring.

[0009] Furthermore, the receiving groove can be constructed as an annular groove, which cooperates with the vertical edge structure to receive liquid. Here, the structure of the receiving groove is optimized and one feasible option is proposed: the inner groove wall and the outer groove wall of the receiving groove both extend upward, wherein the inner groove wall extends to a lower edge higher than the vertical edge, and the outer groove wall extends to an upper edge higher than the vertical edge. When the above solution is adopted, the vertical edge is located in the notch of the receiving groove, which can prevent liquid from splashing from the vertical edge to the outside of the receiving groove, further improving the protection effect.

[0010] Furthermore, in order to provide better protection for the sealing stopper, the structure of the receiving groove is optimized and a feasible option is proposed: the outer groove wall of the receiving groove is matched with an inner top cover extending inward. When the above solution is adopted, the inner top cover can be integrally formed with the receiving groove, or connected to the outer groove wall of the receiving groove by fasteners and a sealing gasket is provided.

[0011] Furthermore, in some other solutions, the structure of the sealing blocker can be optimized and improved. The specific solution is not limited to the only one. Here, an optimization is made and one of the feasible options is proposed: a splash-proof layer is provided on the receiving surface of the sealing blocker, and the splash-proof layer extends from the middle of the receiving surface to the edge of the receiving surface. When the above solution is adopted, the splash-proof layer is used to absorb dripping or flowing liquid. When the sealing blocker rotates synchronously with the transmission shaft, the liquid in the splash-proof layer will gradually flow to the edge, which can avoid the centrifugal force from splashing the liquid around, thereby reducing the pollution and damage caused by the liquid to the surrounding environment and structure.

[0012] Furthermore, when the liquid in the anti-splash layer flows to the edge under the action of centrifugal force, it should be guided to flow downward to avoid being thrown out directly. This purpose can be achieved through a variety of solutions, which are not limited to the only one. Here, an optimization is made and one of the feasible options is proposed: the sealing block is also provided with a centrifugal cover, which is arranged around the vertical edge and forms a gap. The upper edge of the centrifugal cover is higher than the anti-splash layer and forms an inner fold inward to cover the edge of the anti-splash layer. When the above scheme is adopted, a number of connection points are provided between the centrifugal cover and the sealing block to keep it fixed. The edge of the anti-splash layer is stuck in the gap between the centrifugal cover and the sealing block. Then, the liquid in the anti-splash layer flows into the gap under the action of centrifugal force and flows downward along the gap.

[0013] Furthermore, when the liquid flows to the lower port of the gap, it will splash around again due to the centrifugal force. In order to avoid liquid splashing, optimization is performed here and one of the feasible options is proposed: the outer groove wall of the receiving groove forms a closing structure inward, and the outer groove wall extends upward and is higher than the splash-proof layer. When the above solution is adopted, the closing structure can form a barrier to the lower port of the gap. When the liquid flows out from the lower port of the gap, it will directly drip downward or scatter around under the action of centrifugal force. Due to the blocking of the closing structure, the liquid can be guided into the receiving groove in time.

[0014] Furthermore, when the leaked liquid reaches the receiving surface, a certain structure can also be set to prevent the liquid from flowing downward and dripping directly, so that it can be temporarily retained inside the sealing block, and discharged downward after reaching a certain temporary storage volume, or discharged downward after the rotation speed of the transmission shaft decreases or even stops rotating. The above purpose can be achieved through a variety of schemes, which are not limited to the only one. Here, optimization is made and one of the feasible options is proposed: the receiving surface is provided with a liquid accumulation groove, and the splash-proof layer fills the liquid accumulation groove; the liquid accumulation groove forms an arc-shaped groove wall and the groove is inclined toward the transmission shaft, and a drainage port is formed at the bottom of the liquid accumulation groove. When the above scheme is adopted, the liquid in the splash-proof layer reaches the liquid accumulation groove by flowing downward and to the circumference. Due to the structure of the arc-shaped groove wall and the lateral opening, the liquid accumulation groove temporarily stores the liquid in the groove under the action of centrifugal force and will not overflow; when the amount of liquid in the liquid accumulation groove increases, and its gravity exceeds the centrifugal force that causes it to stay in the liquid accumulation groove, the liquid flows downward and can fall into the receiving groove through the drainage port.

[0015] Furthermore, the liquid flowing down from the liquid accumulating tank is still subjected to the centrifugal force when leaving the liquid discharge port. To avoid liquid splashing, an optimization is made here and one of the feasible options is proposed: the liquid discharge port is connected to the liquid discharge channel, and the liquid discharge channel extends spirally and leads to the receiving tank. When the above scheme is adopted, the liquid discharge channel rotates with the sealing block and guides the liquid inside to form a spiral flow. When leaving the liquid discharge channel, the liquid flows out along the extension direction of the liquid discharge channel port, which can avoid centrifugal splashing.

[0016] Furthermore, in order to increase the temporary storage effect of the liquid accumulation groove on the liquid, the centrifugal force is used in combination with the liquid discharge channel to slow down the discharge of the liquid, and one of the feasible options is proposed: the inlet of the liquid discharge channel is connected to the liquid accumulation groove and close to the outside of the sealing baffle, and the outlet of the liquid discharge channel extends toward the transmission shaft. When the above scheme is adopted, when the liquid forms a certain volume in the liquid accumulation groove and has a tendency to be discharged downward, the centrifugal force will cause part of the liquid entering the liquid discharge channel to flow back, and the centrifugal force will also have a more obvious reflux effect, thereby slowing down the discharge of the liquid, and achieving no discharge or less discharge during high-speed rotation, and discharge during low-speed rotation or stopped rotation. In this way, the splashing of liquid caused by the centrifugal force of high-speed rotation can be avoided, thereby effectively improving the protection effect.

[0017] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0018] The present invention utilizes the cooperation of a sealing baffle and a receiving groove to form a waterproof protective structure, which can block the liquid leaking above the transmission shaft and guide it into the receiving groove, and can reduce the liquid splashing caused by the centrifugal force when the transmission shaft rotates, thereby protecting the components on the shaft from corrosion damage and also protecting the surrounding environment components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the waterproof structure in Example 1.

[0021] Figure 2 A schematic diagram of the waterproof structure in Example 2.

[0022] Figure 3 Another schematic diagram of the waterproof structure in Example 2.

[0023] Figure 4 Schematic diagram of the waterproof structure in Example 3.

[0024] In the above drawings, the meanings of the symbols are as follows:

[0025] 1. Mixing tank; 2. Transmission shaft; 3. Seal; 4. Sealing stopper; 401. Receiving surface; 402. Vertical edge; 5. Receiving groove; 501. Inner groove wall; 502. Outer groove wall; 6. Transmission box; 7. Splash-proof layer; 8. Centrifugal stop cover; 9. Closing structure; 10. Drainage channel. DETAILED DESCRIPTION

[0026] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0027] In view of the leakage problem in the prior art of stirring the emulsion in the stirring tank by the bottom drive mechanism, which causes frequent maintenance and overhaul, increases operating costs, and affects production progress, the following embodiments are optimized and overcome the defects in the prior art.

[0028] Example 1

[0029] like Figure 1 As shown, this embodiment provides a vertical rotating shaft waterproof structure, which aims to overcome the problem of corrosion damage to the lower shaft components caused by liquid leakage above the transmission shaft 2, thereby effectively extending the service life of the shaft components and reducing the frequency and cost of inspection and maintenance.

[0030] Specifically, the waterproof structure provided in this embodiment includes a transmission shaft 2, on which a synchronously rotating sealing baffle 4 is fixedly arranged, the sealing baffle 4 includes a top receiving surface 401 cooperating with the transmission shaft 2, and the edge of the top receiving surface 401 forms a vertical edge 402 extending downward; it also includes a receiving groove 5, which is located below the sealing baffle 4 and forms an annular structure, and the opening of the receiving groove 5 faces upward and is used to receive liquid dripping from the vertical edge 402.

[0031] The waterproof structure disclosed in this embodiment blocks the liquid leaking from above by means of the sealing baffle 4, and guides the liquid to the edge and then falls into the receiving groove 5, thereby blocking the liquid leaking from above the transmission shaft 2, preventing the liquid from flowing downward along the transmission shaft 2 and corroding and damaging the shaft components below, thereby protecting the bearings, transmission box 6 and many other components that cooperate with the shaft and extending their service life.

[0032] In this embodiment, the sealing stopper 4 and the transmission shaft 2 are closely matched and rotate synchronously, so that liquid can be prevented from seeping down from the matching point between the transmission shaft 2 and the sealing stopper 4. This embodiment is optimized and adopts one of the feasible options: a sealing member 3 is provided at the connection between the sealing stopper 4 and the transmission shaft 2. When the above solution is adopted, the connection can be waterproofed by a sealing ring.

[0033] Preferably, the sealing ring is a rubber ring.

[0034] The receiving groove 5 can be constructed as an annular groove, which cooperates with the vertical edge 402 structure to receive liquid. This embodiment optimizes the structure of the receiving groove 5 and adopts one of the feasible options: the inner groove wall 501 and the outer groove wall 502 of the receiving groove 5 are both extended upward, wherein the inner groove wall 501 extends to a lower edge higher than the vertical edge 402, and the outer groove wall 502 extends to an upper edge higher than the vertical edge 402. When the above solution is adopted, the vertical edge 402 is located in the notch of the receiving groove 5, which can prevent liquid from splashing from the vertical edge 402 to the outside of the receiving groove 5, further improving the protection effect.

[0035] In order to better protect the sealing stopper 4, the present embodiment optimizes the structure of the receiving groove 5 and adopts one of the feasible options: the outer groove wall 502 of the receiving groove 5 is matched with an inner top cover extending inward. When the above solution is adopted, the inner top cover can be integrally formed with the receiving groove 5, or connected to the outer groove wall 502 of the receiving groove 5 by fasteners and a sealing gasket is provided.

[0036] Preferably, the inner top cover extends to the transmission shaft 2 , forming a rotation gap between the inner top cover and the transmission shaft 2 .

[0037] Example 2

[0038] like Figure 2 , Figure 3 As shown, this embodiment provides a vertical rotating shaft waterproof structure, which aims to improve the situation where the liquid on the sealing baffle 4 splashes with the rotation of the transmission shaft 2, and guides the liquid on the sealing baffle 4 to flow into the receiving groove 5, thereby avoiding pollution and damage to the surrounding environment.

[0039] In the scheme for preventing liquid from splashing, the structure of the sealing block 4 is optimized and improved, and the specific scheme is not limited to the only one. This embodiment optimizes and adopts one of the feasible options: the receiving surface 401 of the sealing block 4 is provided with a splash-proof layer 7, and the splash-proof layer 7 extends from the middle of the receiving surface 401 to the edge of the receiving surface 401. When the above scheme is adopted, the splash-proof layer 7 is used to absorb dripping or flowing liquid. When the sealing block 4 rotates synchronously with the transmission shaft 2, the liquid in the splash-proof layer 7 will gradually flow to the edge, which can avoid the centrifugal force from splashing the liquid around, thereby reducing the pollution and damage caused by the liquid to the surrounding environment and structure.

[0040] Preferably, the splash-proof layer 7 is made of porous foam material. When liquid drops onto the splash-proof layer 7 , it directly enters the porous structure and diffuses and flows toward the edge in the porous structure of the splash-proof layer 7 .

[0041] When the liquid in the anti-splash layer 7 flows to the edge under the action of centrifugal force, it should be guided to flow downward to avoid being thrown out directly. This purpose can be achieved through a variety of solutions, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the sealing block 4 is also provided with a centrifugal cover 8, which is arranged around the vertical edge 402 and forms a gap. The upper edge of the centrifugal cover 8 is higher than the anti-splash layer 7 and forms an inner fold inward to cover the edge of the anti-splash layer 7. When the above solution is adopted, a number of connection points are provided between the centrifugal cover 8 and the sealing block 4 to keep it fixed, and the edge of the anti-splash layer 7 is stuck in the gap between the centrifugal cover 8 and the sealing block 4. Then, the liquid in the anti-splash layer flows into the gap under the action of centrifugal force and flows downward along the gap.

[0042] When the liquid flows to the lower port of the gap, it will splash around again due to the centrifugal force. In order to avoid the splashing of the liquid, this embodiment is optimized and one of the feasible options is adopted: the outer groove wall 502 of the receiving groove 5 is formed inwardly to form a closing structure 9, and the outer groove wall 502 extends upward and is higher than the splash-proof layer 7. When the above scheme is adopted, the closing structure 9 can form a barrier to the lower port of the gap. When the liquid flows out from the lower port of the gap, it will directly drip downward or scatter around under the action of centrifugal force. Due to the blocking of the closing structure 9, the liquid can be guided into the receiving groove 5 in time.

[0043] Preferably, the closing structure 9 can be connected to the outer groove wall 502 by a separate closing piece, or the outer groove wall 502 can be directly folded inward to form the closing structure 9.

[0044] Example 3

[0045] like Figure 4 As shown, when the leaked liquid reaches the receiving surface 401, a certain structure can also be set to prevent the liquid from flowing downward and dripping directly, so that it can be temporarily retained inside the sealing block 4, and then discharged downward after reaching a certain temporary storage amount, or discharged downward after the speed of the transmission shaft 2 decreases or even stops rotating. The above purpose can be achieved through a variety of schemes, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the receiving surface 401 is provided with a liquid accumulation groove, and the splash-proof layer 7 fills the liquid accumulation groove; the liquid accumulation groove forms an arc-shaped groove wall and the groove is inclined toward the transmission shaft 2, and a drainage port is formed at the bottom of the liquid accumulation groove. When the above scheme is adopted, the liquid in the splash-proof layer 7 reaches the liquid accumulation groove by flowing downward and toward the circumference. Due to the structure of the arc-shaped groove wall and the lateral opening, the liquid accumulation groove temporarily stores the liquid in the groove under the action of centrifugal force and will not overflow; when the amount of liquid in the liquid accumulation groove increases, its gravity exceeds the centrifugal force that causes it to stay in the liquid accumulation groove, the liquid flows downward and can fall into the receiving groove 5 through the drainage port.

[0046] The liquid flowing down from the liquid accumulating tank is still subjected to the centrifugal force when leaving the liquid discharge port. To avoid liquid splashing, this embodiment is optimized and adopts one of the feasible options: the liquid discharge port is connected to the liquid discharge channel 10, and the liquid discharge channel 10 extends spirally and leads to the receiving groove 5. When the above scheme is adopted, the liquid discharge channel 10 rotates with the sealing blocker 4 and guides the liquid inside to form a spiral flow. When leaving the liquid discharge channel 10, the liquid flows out along the extension direction of the liquid discharge channel 10 port, which can avoid centrifugal splashing.

[0047] In order to increase the temporary storage effect of the liquid accumulation groove on the liquid, this embodiment combines the liquid discharge channel 10 with the centrifugal force to slow down the discharge of the liquid, and adopts one of the feasible options: the inlet of the liquid discharge channel 10 is connected to the liquid accumulation groove and close to the outer side of the sealing block 4, and the outlet of the liquid discharge channel 10 extends toward the transmission shaft 2. When the above scheme is adopted, when the liquid forms a certain volume in the liquid accumulation groove and has a tendency to be discharged downward, the centrifugal force will cause part of the liquid entering the liquid discharge channel 10 to flow back, and the centrifugal force will also have a more obvious reflux effect, so the discharge of the liquid can be slowed down, and no discharge or less discharge can be achieved during high-speed rotation, and discharge can be achieved during low-speed rotation or when the rotation stops. In this way, the splashing of liquid caused by the centrifugal force of high-speed rotation can be avoided, thereby effectively improving the protection effect.

[0048] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A vertical rotary shaft waterproof structure, characterized in that: The invention comprises a transmission shaft (2), a synchronously rotating sealing stopper (4) is fixedly arranged on the transmission shaft (2), the sealing stopper (4) comprises a top receiving surface (401) cooperating with the transmission shaft (2), the edge of the top receiving surface (401) forms a vertical edge (402) extending downward; and further comprises a receiving groove (5), the receiving groove (5) is located below the sealing stopper (4) and forms an annular structure, the opening of the receiving groove (5) faces upward and is used to receive liquid dripping from the vertical edge (402); A splash-proof layer (7) is provided on the receiving surface (401) of the sealing stopper (4), and the splash-proof layer (7) extends from the middle of the receiving surface (401) to the edge of the receiving surface (401); The sealing stopper (4) is also provided with a centrifugal stop cover (8), which is arranged around the vertical edge (402) to form a gap, and the upper edge of the centrifugal stop cover (8) is higher than the splash-proof layer (7) and forms an inner folded edge inwardly to cover the edge of the splash-proof layer (7).

2. The vertical rotary shaft waterproof structure according to claim 1, characterized in that: A sealing member (3) is provided at the connection between the sealing member (4) and the transmission shaft (2).

3. The vertical rotary shaft waterproof structure according to claim 1, characterized in that: The inner groove wall (501) and the outer groove wall (502) of the receiving groove (5) both extend upwards, wherein the inner groove wall (501) extends to a lower edge higher than the vertical edge (402), and the outer groove wall (502) extends to an upper edge higher than the vertical edge (402).

4. The vertical rotary shaft waterproof structure according to claim 1, 2 or 3, characterized in that: The outer groove wall (502) of the receiving groove (5) is matched with an inner top cover extending inwards.

5. The vertical rotary shaft waterproof structure according to claim 1, characterized in that: The outer groove wall (502) of the receiving groove (5) forms a closing structure (9) inwardly, and the outer groove wall (502) extends upward and is higher than the splash-proof layer (7).

6. The vertical rotary shaft waterproof structure according to claim 1, characterized in that: The receiving surface (401) is provided with a liquid collection groove, and the splash-proof layer (7) fills the liquid collection groove; the liquid collection groove forms an arc-shaped groove wall and the groove opening is inclined toward the transmission shaft (2), and a liquid discharge port is formed at the bottom of the liquid collection groove.

7. The vertical rotary shaft waterproof structure according to claim 6, characterized in that: The liquid discharge port is connected to a liquid discharge channel (10), and the liquid discharge channel (10) extends spirally and leads to the receiving groove (5).

8. The vertical rotary shaft waterproof structure according to claim 7, characterized in that: The inlet of the drainage channel (10) is connected to the liquid accumulation groove and is close to the outer side of the sealing block (4), and the outlet of the drainage channel (10) extends towards the transmission shaft (2).

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