A sealing protection device for rapid sealing of a stirring shaft

Abstract

The present invention discloses a sealing protection device for rapid sealing of an agitator shaft, comprising a mounting block, hinges symmetrically provided at the left and right ends of one side of the mounting block, the hinges at the left and right ends being respectively connected to a left sealing chuck and a right sealing chuck, a linear telescopic device being further provided on the mounting block, the telescopic ends of the linear telescopic device being respectively connected to the left and right hinges and driving the left sealing chuck and the right sealing chuck to move closer to each other or away from each other; a left sealing opening is provided on the splicing surface of the left sealing chuck, and a right sealing opening is provided on the splicing surface of the right sealing chuck; a left arc-shaped card groove is provided at the edge of the left sealing chuck, and a right arc-shaped card groove is provided at the edge of the right sealing chuck; the present invention realizes rapid and effective sealing of the outer side of the agitator shaft without requiring a large amount of disassembly of the agitator shaft mounting structure, thereby preventing a large amount of liquid from overflowing during the process of replacing the sealing component between the agitator shaft and the tank body.

Description

Technical Field

[0001] The invention belongs to the technical field of shaft parts sealing, and in particular relates to a sealing protection device for rapid sealing of a stirring shaft. Background Art

[0002] In order to allow the solutions to mix and react better, the internal solutions need to be stirred, and the tank body needs to be well sealed during the stirring process. Therefore, a sealing assembly is generally installed at the connection between the stirring shaft and the tank body. When the sealing assembly leaks during operation, the damaged assembly needs to be replaced. The existing technology is to stop the stirring device, then empty the solution in the stirring tank, and remove the motor, reducer, frame, stirring shaft and other components before replacement. The existing technology requires emptying the solution in the stirring device and then replacing the mechanical seal. This method is labor-intensive and has low work efficiency. Moreover, when the solution is not allowed to be discharged, the maintenance or replacement of the sealing assembly cannot be achieved.

[0003] Therefore, in order to avoid the need to disassemble a large amount of the stirring mechanism when replacing the sealing assembly between the stirring shaft and the tank body in the prior art, and to avoid the situation where a large amount of liquid inside the tank may overflow when replacing the sealing assembly, the present invention discloses a sealing protection device for quickly sealing the stirring shaft. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing protection device for rapid sealing of the stirring shaft, which can achieve rapid and effective sealing of the outer side of the stirring shaft without the need for extensive disassembly of the stirring shaft mounting structure, thereby preventing large amounts of liquid from overflowing during the replacement of the sealing assembly between the stirring shaft and the tank body.

[0005] The present invention is achieved through the following technical solutions:

[0006] A sealing protection device for quickly sealing a stirring shaft, comprising a mounting block, wherein hinges are symmetrically provided at the left and right ends of one side of the mounting block, and the hinges at the left and right ends are respectively connected to a left sealing chuck and a right sealing chuck; a linear telescopic device is further provided on the mounting block, and the telescopic ends of the linear telescopic device pass through the mounting block and are respectively connected to the hinges at the left and right ends, and the linear telescopic device drives the left sealing chuck and the right sealing chuck to move closer to each other or away from each other through the hinge; a left sealing port is provided on the splicing surface of the left sealing chuck on the side close to the right sealing chuck corresponding to the outer side of the stirring shaft, and a right sealing port is provided on the splicing surface of the right sealing chuck on the side close to the left sealing chuck corresponding to the outer side of the stirring shaft; a left arc-shaped groove is provided at the edge of the left sealing chuck, and a right arc-shaped groove is provided at the edge of the right sealing chuck.

[0007] When the outside of the stirring shaft needs to be sealed, the telescopic end of the linear telescopic device is first extended, thereby driving the hinges on the left and right sides to expand, and then the left sealing chuck and the right sealing chuck are driven to expand away from each other through the hinges, so that the left sealing port on the left sealing chuck and the right sealing port on the right sealing chuck are opened to form an opening. The stirring shaft can then be moved between the left sealing port and the right sealing port through the opening. At the same time, in order to pre-position the left sealing chuck and the right sealing chuck, the left sealing chuck and the right sealing chuck are prevented from moving during the subsequent sealing of the stirring shaft. The end faces of one side of the left sealing chuck and the end faces of one side of the right sealing chuck are both in contact with the end face of the stirring shaft support. During the movement of the agitator shaft between the left and right sealing ports, the end of the bolt mounted on the left side of the agitator shaft support end face is correspondingly engaged with the left arcuate slot and slides along the left arcuate slot. At the same time, the end of the bolt mounted on the right side of the agitator shaft support end face is correspondingly engaged with the right arcuate slot and slides along the right arcuate slot. The left and right sealing chucks are pre-positioned by the sliding cooperation of the bolt ends with the left and right arcuate slots. The agitator shaft moves to a position concentric with the left and right sealing ports. At this time, an external force is applied to the linear telescopic device, causing the telescopic end of the linear telescopic device to retract, thereby driving the left and right sealing chucks to move closer together through the hinge, thereby driving the left and right sealing ports to assemble together to form a full circle sleeve arranged on the outside of the agitator shaft. The inner side surfaces of the left and right sealing ports are tightly fitted with the outer side surface of the agitator shaft, thereby achieving a protective seal on the outside of the agitator shaft.

[0008] In order to better implement the present invention, further, the left sealing port and the right sealing port are both semicircular bayonet ports, and when the left sealing chuck and the right sealing chuck are close to each other and assembled, the left sealing port and the right sealing port are driven to be assembled into a full-circular bayonet port.

[0009] In order to better implement the present invention, further, a left half sealing ring is provided on the inner side surface of the left sealing port, and a right half sealing ring is provided on the inner side surface of the right sealing port, which can be assembled with the left half sealing ring to form a full-circle sealing ring.

[0010] The left half sealing ring and the right half sealing ring are both elastic sealing rings. When the left sealing port and the right sealing port are spliced together, the left half sealing ring and the right half sealing ring are driven to splice together to form a full-circular sealing ring structure. At the same time, the external force caused by the left sealing chuck and the right sealing chuck approaching each other squeezes the left half sealing ring and the right half sealing ring toward the stirring shaft, so that the left half sealing ring and the right half sealing ring are tightly fitted to the outer side of the stirring shaft, thereby achieving rapid and effective sealing of the outer side of the stirring shaft.

[0011] In order to better implement the present invention, further, the splicing surface of the left half sealing ring is provided with a convex portion extending to the inside of the right sealing port, and the splicing surface of the right half sealing ring is provided with a concave portion spliced with the convex portion; or the splicing surface of the right half sealing ring is provided with a convex portion extending to the inside of the left sealing port, and the splicing surface of the left half sealing ring is provided with a concave portion spliced with the convex portion.

[0012] In order to better implement the present invention, further, the left arc-shaped slot and the right arc-shaped slot are both semicircular T-shaped slots.

[0013] In order to better implement the present invention, further, the notch of the semicircular T-shaped slot is provided with a guide flare.

[0014] In order to better implement the present invention, further, a sliding mounting hole is provided on the mounting block, and the linear telescopic device includes a sliding rod that is slidably connected to the sliding mounting hole, and one end of the sliding rod passes through the sliding mounting hole and is hinged to the hinges at the left and right ends.

[0015] In order to better implement the present invention, further, a mounting hole is provided on the mounting block, and the linear telescopic device includes a screw rod rotatably set in the mounting hole, one end of the screw rod extends to the outside of the threaded hole and is threadedly sleeved with a nut seat, and the left and right sides of the nut seat are respectively hinged to the hinges at the left and right ends.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] (1) The present invention provides a left sealing chuck and a right sealing chuck on the left and right sides of the corresponding stirring shaft, and simultaneously drives the left and right hinges to open or close synchronously through the telescopic end of the linear telescopic device, and then drives the left sealing chuck and the right sealing chuck to move away from each other or move closer to each other and close together through the hinges on the left and right sides; when the left sealing chuck and the right sealing chuck move away from each other, the left sealing port on the left sealing chuck and the right sealing port on the right sealing chuck are opened to facilitate the installation of the stirring shaft between the left sealing port and the right sealing port, and then the left sealing chuck and the right sealing chuck are moved closer to each other and closed, thereby driving the left sealing port and the right sealing port to be closed and sleeved on the outside of the stirring shaft, and the left sealing port and the right sealing port are tightly fitted with the outside of the stirring shaft, thereby forming a protective sealing structure for the outside of the stirring shaft, and then when replacing the stirring shaft sealing component, the outside of the stirring shaft is sealed through the left sealing port and the right sealing port, so that when replacing the sealing component, only the connection between the stirring shaft and the tank body needs to be disassembled, which greatly reduces the disassembly workload and ensures the sealing of the stirring shaft, effectively preventing a large amount of liquid from overflowing;

[0018] (2) During the process of installing the left sealing chuck and the right sealing chuck on the outside of the agitator shaft, the left arc-shaped groove at the edge of the left sealing chuck is slidably matched with the bolt on the left side of the end face of the agitator shaft support, and the right arc-shaped groove at the edge of the right sealing chuck is slidably matched with the bolt on the right side of the end face of the agitator shaft support, thereby pre-positioning the left sealing chuck and the right sealing chuck, effectively ensuring the stability of the subsequent closing process of the left sealing chuck and the right sealing chuck, so that the left sealing port on the left sealing chuck and the right sealing port on the right sealing chuck can be accurately mounted on the outside of the agitator shaft, thereby ensuring the sealing of the agitator shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 Schematic diagram of the connection structure between the linear telescopic device and the hinge;

[0021] Figure 3 This is a schematic diagram of the assembly of the sealing protection device and the stirring shaft;

[0022] Figure 4 Schematic diagram of sealing the stirring shaft with a sealing guard;

[0023] Figure 5 Schematic diagram of the left sealing chuck and the right sealing chuck being separated;

[0024] Figure 6 It is a schematic diagram of the left sealing chuck and the right sealing chuck being assembled;

[0025] Figure 7 for Figure 1 AA section view.

[0026] Among them: 1- linear telescopic device; 2- hinge; 3- left sealing chuck; 4- right sealing chuck; 5- stirring shaft support; 6- stirring shaft; 01- left sealing port; 02- right sealing port; 03- left arc-shaped slot; 04- right arc-shaped slot. DETAILED DESCRIPTION

[0027] Example 1:

[0028] A sealing protection device for rapid sealing of a stirring shaft according to this embodiment, such as Figure 1As shown, it includes a mounting block, and hinges 2 are symmetrically provided on the left and right ends of one side of the mounting block, and the hinges 2 on the left and right ends are respectively connected to the left sealing chuck 3 and the right sealing chuck 4. A linear telescopic device 1 is also provided on the mounting block, and the telescopic ends of the linear telescopic device 1 pass through the mounting block and are respectively connected to the hinges 2 on the left and right ends. The linear telescopic device 1 drives the left sealing chuck 3 and the right sealing chuck 4 to move closer to each other or move away from each other through the hinge 2; a left sealing port 01 is provided on the outer side of the stirring shaft on the splicing surface of the left sealing chuck 3 close to the right sealing chuck 4, and a right sealing port 02 is provided on the outer side of the stirring shaft on the splicing surface of the right sealing chuck 4 close to the left sealing chuck 3; a left arc-shaped groove 03 is provided at the edge of the left sealing chuck 3, and a right arc-shaped groove 04 is provided at the edge of the right sealing chuck 4.

[0029] When the telescopic end of the linear telescopic device 1 is extended toward the stirring shaft, the telescopic end of the linear telescopic device 1 synchronously drives the left sealing chuck 3 and the right sealing chuck 4 to move away from each other and open through the hinges 2 at the left and right ends. At this time, the left sealing port 01 on the left sealing chuck 3 and the right sealing port 02 on the right sealing chuck 4 are separated and opened, so that the stirring shaft can smoothly enter between the left sealing port 01 and the right sealing port 02.

[0030] When inserting the agitator shaft between the left sealing opening 01 and the right sealing opening 02, the end faces of the left sealing chuck 3 and the right sealing chuck 4 are aligned with the end face of the agitator shaft support to position the left and right sealing chucks 3 and 4. Simultaneously, the left screw on the agitator shaft support enters and slides along the left arcuate groove 03 at the edge of the left sealing chuck 3, while the right screw on the agitator shaft support enters and slides along the right arcuate groove 04 at the edge of the right sealing chuck 4, thereby positioning the left and right sealing chucks 3 and 4. Until the stirring shaft moves to between the left sealing port 01 and the right sealing port 02, at this time, external force is applied to retract the telescopic end of the linear telescopic device 1, and then the left sealing chuck 3 and the right sealing chuck 4 are driven closer to each other through the hinge 2, until the left sealing port 01 and the right sealing port 02 are assembled and mounted on the outside of the stirring shaft. The outside of the stirring shaft is sealed by the cooperation between the left sealing port 01, the right sealing port 02 and the outer side of the stirring shaft.

[0031] like Figure 3 As shown in FIG, the process of installing the corresponding stirring shaft when the left sealing chuck 3 and the right sealing chuck 4 are separated and opened. Figure 4 FIG. 1 shows a process of assembling the left sealing chuck 3 and the right sealing chuck 4 and then fitting them to the outer side of the stirring shaft.

[0032] Example 2:

[0033] This embodiment is further optimized based on embodiment 1. Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 As shown, the left sealing opening 01 and the right sealing opening 02 are both semicircular bayonet openings. When the left sealing chuck 3 and the right sealing chuck 4 are close to each other and assembled, the left sealing opening 01 and the right sealing opening 02 are driven to be assembled into a full-circular bayonet opening.

[0034] The center of the semicircular bayonet corresponds to the axis center of the stirring shaft. When the left sealing port 01 and the right sealing port 02 are spliced together, a full-circle bayonet is formed. The center of the full-circle bayonet coincides with the axis center of the stirring shaft, and the inner surface of the full-circle bayonet cooperates with the outer surface of the stirring shaft to form a sealing structure.

[0035] The rest of this embodiment is the same as that of embodiment 1, so it will not be described again.

[0036] Example 3:

[0037] This embodiment is further optimized based on the above embodiment 1 or 2. Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 As shown, a left half sealing ring is provided on the inner side surface of the left sealing opening 01, and a right half sealing ring is provided on the inner side surface of the right sealing opening 02, which can be assembled with the left half sealing ring to form a full-circle sealing ring.

[0038] When the left sealing port 01 and the right sealing port 02 are assembled to form a full-circle bayonet, the left half sealing ring and the right half sealing ring are assembled to form a full-circle sealing ring. The full-circle sealing ring is sleeved on the outside of the stirring shaft and fits tightly with the outer side surface of the stirring shaft to achieve protective sealing of the outside of the stirring shaft.

[0039] Furthermore, the mating surface of the left half sealing ring is provided with a convex portion extending to the inside of the right sealing port 02, and the mating surface of the right half sealing ring is provided with a concave portion that is spliced with the convex portion; or the mating surface of the right half sealing ring is provided with a convex portion extending to the inside of the left sealing port 01, and the mating surface of the left half sealing ring is provided with a concave portion that is spliced with the convex portion.

[0040] If a convex portion extending into the right sealing opening 02 is provided on the mating surface of the left half sealing ring, a concave portion retracting into the right sealing opening 02 and correspondingly aligning with the convex portion is provided on the mating surface of the right plate sealing ring. If a convex portion extending into the left sealing opening 01 is provided on the mating surface of the right half sealing ring, a concave portion retracting into the left sealing opening 01 and correspondingly aligning with the convex portion is provided on the mating surface of the left plate sealing ring. By aligning the convex and concave portions, the left and right half sealing rings are combined to form a fully circular sealing ring, further ensuring a good sealing effect.

[0041] The rest of this embodiment is the same as that of the above-mentioned embodiment 1 or 2, and thus will not be described in detail.

[0042] Example 4:

[0043] This embodiment is further optimized based on any one of the above embodiments 1-3. Figure 1 and Figure 7 As shown, the left arc-shaped slot 03 and the right arc-shaped slot 04 are both semicircular T-shaped slots. The left arc-shaped slot 03 and the right arc-shaped slot 04 correspond to the bolts on the left and right sides of the end face of the stirring shaft support to achieve pre-positioning of the left arc-shaped slot 03 and the right arc-shaped slot 04.

[0044] Furthermore, the notch of the semicircular T-slot is provided with a guide bell mouth, so that the end of the bolt can more easily enter the left arc-shaped slot 03 or the right arc-shaped slot 04.

[0045] The rest of this embodiment is the same as any of the above embodiments 1-3, so it will not be repeated here.

[0046] Example 5:

[0047] This embodiment is further optimized based on any one of the above embodiments 1-4. Figure 1 As shown, a mounting hole is provided on the mounting block, and the linear telescopic device 1 includes a sliding rod slidably connected to the mounting hole, one end of the sliding rod passes through the mounting hole and is hinged to the hinges 2 at the left and right ends.

[0048] The telescopic end of the sliding rod passes through the mounting hole and extends toward the agitator shaft. Connecting rods are hinged to the left and right sides of the telescopic end, and the free ends of the connecting rods are hinged to hinge 2. The force-bearing end of the sliding rod is connected to an external telescopic device such as an oil cylinder, which applies axial force to the sliding rod, thereby driving the sliding rod to linearly extend and retract along the mounting hole, thereby driving the left and right sealing chucks 3 and 4 toward or away from each other through hinge 2.

[0049] The rest of this embodiment is the same as any of the above embodiments 1-4, so it will not be repeated here.

[0050] Example 6:

[0051] This embodiment is further optimized based on any one of the above embodiments 1-5. Figure 2 As shown, a mounting hole is provided on the mounting block, and the linear telescopic device 1 includes a screw rotatably set in the mounting hole, one end of the screw extends to the outside of the threaded hole and is threadedly sleeved with a nut seat, and the left and right sides of the nut seat are respectively hinged to the hinges 2 at the left and right ends.

[0052] By rotating the screw, the nut seat is driven to move linearly along the axis of the screw. Connecting rods are hinged on the left and right sides of the nut seat, and the free ends of the connecting rods are hinged to the hinge 2. The linear movement of the nut seat drives the left sealing chuck 3 and the right sealing chuck 4 to move closer to or away from each other through the hinge 2.

[0053] The rest of this embodiment is the same as any of the above embodiments 1-5, so it will not be repeated here.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A sealing protection device for rapid sealing of a stirring shaft, comprising a mounting block, characterized in that: Hinges (2) are symmetrically provided at the left and right ends of one side of the mounting block, and the hinges (2) at the left and right ends are respectively connected to the left sealing chuck (3) and the right sealing chuck (4). A linear telescopic device (1) is also provided on the mounting block, and the telescopic ends of the linear telescopic device (1) pass through the mounting block and are respectively connected to the hinges (2) at the left and right ends. The linear telescopic device (1) drives the left sealing chuck (3) and the right sealing chuck (4) to move closer to each other or move away from each other through the hinges (2). A left sealing opening is provided on the outer side of the stirring shaft on the splicing surface of the left sealing chuck (3) on the side close to the right sealing chuck (4). (01), a right sealing opening (02) is provided on the joint surface of the right sealing chuck (4) on the side close to the left sealing chuck (3) corresponding to the outer side of the stirring shaft; a left arc-shaped card groove (03) is provided at the edge of the left sealing chuck (3), and a right arc-shaped card groove (04) is provided at the edge of the right sealing chuck (4); the left screw on the stirring shaft support enters the left arc-shaped card groove (03) at the edge of the left sealing chuck 3 and slides along the left arc-shaped card groove (03), and the right screw on the stirring shaft support enters the right arc-shaped card groove (04) at the edge of the right sealing chuck (4) and slides along the right arc-shaped card groove (04).

2. A sealing protection device for rapid sealing of a stirring shaft according to claim 1, characterized in that: The left sealing opening (01) and the right sealing opening (02) are both semicircular bayonet openings, and when the left sealing chuck (3) and the right sealing chuck (4) are brought close to each other and assembled, the left sealing opening (01) and the right sealing opening (02) are driven to be assembled into a full-circular bayonet opening.

3. A sealing protection device for rapid sealing of a stirring shaft according to claim 2, characterized in that: A left half sealing ring is provided on the inner side surface of the left sealing opening (01), and a right half sealing ring is provided on the inner side surface of the right sealing opening (02), which can be assembled with the left half sealing ring to form a full-circle sealing ring.

4. A sealing protection device for rapid sealing of a stirring shaft according to claim 3, characterized in that: The left half sealing ring is provided with a convex portion extending to the inside of the right sealing opening (02) on the splicing surface, and a concave portion spliced with the convex portion is provided on the splicing surface of the right half sealing ring; or the right half sealing ring is provided with a convex portion extending to the inside of the left sealing opening (01) on the splicing surface, and a concave portion spliced with the convex portion is provided on the splicing surface of the left half sealing ring.

5. A sealing protection device for rapid sealing of a stirring shaft according to any one of claims 1 to 4, characterized in that: The left arc-shaped slot (03) and the right arc-shaped slot (04) are both semicircular T-shaped slots.

6. A sealing protection device for rapid sealing of a stirring shaft according to claim 5, characterized in that: The notch of the semicircular T-shaped slot is provided with a guide bell mouth.

7. A sealing protection device for rapid sealing of a stirring shaft according to any one of claims 1 to 4, characterized in that: The mounting block is provided with a mounting hole, and the linear telescopic device (1) comprises a sliding rod slidably connected to the mounting hole, one end of the sliding rod passes through the mounting hole and is hinged to hinges (2) at the left and right ends.

8. A sealing protection device for rapid sealing of a stirring shaft according to any one of claims 1 to 4, characterized in that: The mounting block is provided with a mounting hole, and the linear telescopic device (1) comprises a screw rod rotatably arranged in the mounting hole, one end of the screw rod extends to the outside of the threaded hole and is threadedly sleeved with a nut seat, and the left and right sides of the nut seat are respectively hinged to the hinges (2) at the left and right ends.

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