Mechanical seal dismounting device
By designing the adjustment and disassembly mechanism of the mechanical seal disassembly device, the problem of the claw arm position offset of the three-jaw puller was solved, realizing the stable disassembly of the shaft seal and improving the disassembly efficiency.
Patent Information
- Application Number
- CN202520552509.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing three-jaw puller is prone to displacement when adjusting the position of the jaw arms, which makes it inconvenient to remove the shaft seal.
A mechanical seal disassembly device was designed, including a fixed plate, an adjustment mechanism, and a disassembly mechanism. Through the cooperation of components such as sliders, slide rods, limit plates, and springs, the claw arm is stably limited, and through the cooperation of threaded rods and rotating plates, the shaft seal is stably disassembled.
It achieves stable positioning of the claw arm, facilitating the disassembly process of the shaft seal and improving disassembly efficiency.
Smart Images
Figure CN223971619U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaft seal disassembly technology, specifically to a mechanical seal disassembly device. Background Technology
[0002] A mechanical seal is a device that prevents fluid leakage by maintaining contact and relative sliding between at least one pair of end faces perpendicular to the axis of rotation under the action of fluid pressure, the elastic force of a compensation mechanism, and the cooperation of an auxiliary seal. A mechanical seal with a metallic bellows-type elastic loading mechanism and auxiliary seal is called a metal bellows seal. A mechanical seal is a shaft sealing device for rotating machinery.
[0003] When disassembling a shaft seal, a three-jaw puller is usually required. However, in existing three-jaw pullers, when the position of the claw arm that pulls the shaft seal needs to be adjusted, the claw arm slides freely inside the main frame and cannot be limited in position. This makes it easy for the claw arm to shift during use, which is inconvenient for workers to disassemble the shaft seal. Therefore, an improvement is needed. Utility Model Content
[0004] The purpose of this invention is to provide a mechanical seal disassembly device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical seal disassembly device, including a fixed plate, an adjustment mechanism being provided inside the fixed plate, and a disassembly mechanism being provided inside the adjustment mechanism;
[0006] The adjustment mechanism includes a slider, which is slidably connected to the top of a fixed plate. A fixed frame is fixedly connected to the top of the slider. A slide rod is slidably connected to the inner side of the fixed frame. A pull plate is fixedly connected to the top of the slide rod. A limit plate is fixedly connected to the bottom of the slide rod. A plug rod is fixedly connected to the bottom of the limit plate. A spring is sleeved around the slide rod. An arc-shaped plate is fixedly connected to the bottom inner side of the fixed frame. A bolt is threaded onto the inner side of the arc-shaped plate.
[0007] Preferably, the inner side of the fixed plate is provided with a groove corresponding to the movement trajectory of the slider, and the slider is slidably connected inside the groove. The groove can limit the slider and make the slider more stable during movement.
[0008] Preferably, the top of the spring is fixedly connected to the top of the fixed frame, and the bottom of the spring is fixedly connected to the top of the limiting plate. When the force of the pull plate is released, the elastic force of the spring can cause the limiting plate to drive the insertion rod to insert into the fixed plate, thereby limiting the fixed frame.
[0009] Preferably, the inner side of the fixing frame has a circular hole corresponding to the position of the insertion rod, and the insertion rod is slidably connected to the inner side of the circular hole. Through the circular hole, the insertion rod can pass through the fixing frame and be inserted into the fixing plate, thereby limiting the position of the fixing frame.
[0010] Preferably, the disassembly mechanism includes a fixing column, which is threaded to the periphery of the bolt. A support column is fixedly connected to the bottom of the fixing column, and a insert plate is fixedly connected to the bottom of the support column. A threaded rod is threadedly connected inside the fixing plate, and a rotating disk is fixedly connected to the top of the threaded rod.
[0011] Preferably, the bottom of the fixing frame has a sliding hole corresponding to the size of the fixing post, and the fixing post is inserted into the inside of the sliding hole, so that the fixing post can slide inside the fixing frame through the sliding hole.
[0012] Preferably, the inner side of the fixing plate is provided with a fixing groove corresponding to the sliding trajectory of the fixing column, and the fixing column is slidably connected inside the fixing groove. Through the fixing groove, the fixing column can slide inside the fixing groove.
[0013] Compared with the prior art, this utility model provides a mechanical seal disassembly device, which has the following beneficial effects:
[0014] 1. This mechanical seal disassembly device, through an adjustment mechanism, uses bolts to install the fixing column into the arc plate. The device works in conjunction with the insertion rod, slider, fixing frame, spring, slide rod, pull plate, arc and limit plate to allow the limit plate to drive the insertion rod into the fixing plate, thereby limiting the fixing frame and allowing the three insertion plates to be inserted into the shaft seal at the same time, making it convenient for workers to disassemble the shaft seal.
[0015] 2. This mechanical seal disassembly device, through its disassembly mechanism, uses a rotating disc, threaded rod, fixed column, support column, and insert plate in conjunction. Rotating the threaded rod allows its bottom to contact the rotating shaft around the shaft seal, generating an upward force on the fixed disc. This force causes the fixed column, support column, and insert plate to move upward, enabling the insert plate to move the shaft seal upward, facilitating disassembly of the shaft seal by the operator. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a front view structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the adjustment mechanism.
[0019] Figure 3 A schematic diagram of the structure of the arc plate, bolts, and limiting plate;
[0020] Figure 4 This is a schematic diagram of the disassembly mechanism.
[0021] In the diagram: 1. Fixed plate; 2. Adjustment mechanism; 21. Insert rod; 22. Slider; 23. Fixed frame; 24. Spring; 25. Slide rod; 26. Pull plate; 27. Arc plate; 28. Bolt; 29. Limiting plate; 3. Disassembly mechanism; 31. Rotating plate; 32. Threaded rod; 33. Fixed column; 34. Support column; 35. Insert plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] This utility model provides the following technical solution:
[0025] Example 1
[0026] Please see Figure 1-4 The present invention provides a technical solution: a mechanical seal disassembly device, including a fixed plate 1, an adjustment mechanism 2 provided inside the fixed plate 1, and a disassembly mechanism 3 provided inside the adjustment mechanism 2;
[0027] The adjustment mechanism 2 includes a slider 22, which is slidably connected to the top of the fixed plate 1. A fixed frame 23 is fixedly connected to the top of the slider 22. A slide rod 25 is slidably connected to the inner side of the fixed frame 23. A pull plate 26 is fixedly connected to the top of the slide rod 25. A limit plate 29 is fixedly connected to the bottom of the slide rod 25. A plug rod 21 is fixedly connected to the bottom of the limit plate 29. A spring 24 is sleeved around the slide rod 25. An arc plate 27 is fixedly connected to the bottom of the inner side of the fixed frame 23. A bolt 28 is threadedly connected to the inner side of the arc plate 27.
[0028] Furthermore, a groove corresponding to the movement trajectory of the slider 22 is provided on the inner side of the fixed plate 1, and the slider 22 is slidably connected inside the groove. The groove can limit the slider 22, making the slider 22 more stable during movement.
[0029] Furthermore, the top of the spring 24 is fixedly connected to the top of the inner wall of the fixed frame 23, and the bottom of the spring 24 is fixedly connected to the top of the limiting plate 29. When the force of the pull plate 26 is released, the elastic force of the spring 24 can cause the limiting plate 29 to drive the insertion rod 21 to be inserted into the interior of the fixed plate 1, thereby limiting the fixed frame 23.
[0030] Furthermore, a circular hole corresponding to the position of the insertion rod 21 is provided on the inner side of the fixing frame 23, and the insertion rod 21 is slidably connected to the inner side of the circular hole. Through the circular hole, the insertion rod 21 can pass through the fixing frame 23 and be inserted into the interior of the fixing plate 1, thereby limiting the position of the fixing frame 23.
[0031] Example 2
[0032] Please see Figure 1-4 Furthermore, based on Embodiment 1, the disassembly mechanism 3 includes a fixed column 33, which is threadedly connected to the periphery of the bolt 28. A support column 34 is fixedly connected to the bottom of the fixed column 33, and a plug plate 35 is fixedly connected to the bottom of the support column 34. A threaded rod 32 is threadedly connected inside the fixed plate 1, and a rotating plate 31 is fixedly connected to the top of the threaded rod 32.
[0033] Furthermore, a sliding hole corresponding to the size of the fixing post 33 is provided at the bottom of the fixing frame 23, and the fixing post 33 is inserted into the inner side of the sliding hole. Through the sliding hole, the fixing post 33 can slide inside the fixing frame 23.
[0034] Furthermore, a fixing groove corresponding to the sliding trajectory of the fixing post 33 is provided on the inner side of the fixing plate 1, and the fixing post 33 is slidably connected to the inside of the fixing groove. Through the fixing groove, the fixing post 33 can slide inside the fixing groove.
[0035] In actual operation, when this device is used, the fixing post 33 is inserted into the fixing frame 23, and the fixing post 33 is installed into the arc plate 27 by bolts 28. Pull the pull plate 26 upward, so that the pull plate 26 passes through the slide rod 25, and the slide rod 25 drives the insertion rod 21 upward through the limiting plate 29, so that the insertion rod 21 moves away from the inside of the fixing plate 1. The pull plate 26 drives the fixing frame 23 and the slider 22 to move, so that the slider 22 slides inside the fixing plate 1. When the fixing frame 23 moves to the appropriate position, the force on the pull plate 26 is released. Through the elastic force of the spring 24, the limiting plate 29 drives the insertion rod 21 to insert into the inside of the fixing plate 1, limiting the fixing frame 23, so that the positions of the three fixing posts 33, the support post 34 and the insertion plate 35 are the same, so that when the device is disassembled from the shaft seal, the three insertion plates 35 can be inserted into the shaft seal at the same time.
[0036] The threaded rod 32 is threaded to the inside of the fixed plate 1. The fixed plate 1 is manually supported, and the threaded rod 32 is rotated by the rotating plate 31 so that the bottom of the threaded rod 32 can contact the rotating shaft around the shaft seal. This causes the fixed plate 1 to generate an upward force, which in turn causes the fixed column 33, the support column 34 and the insert plate 35 to move upward. This allows the insert plate 35 to move the shaft seal upward, making it easier for the staff to disassemble the shaft seal.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. Mechanical seal dismounting device comprising a stationary ring (1), characterized in that: The inside of the fixed disc (1) is provided with an adjusting mechanism (2), and the inside of the adjusting mechanism (2) is provided with a dismounting mechanism (3); The adjusting mechanism (2) comprises a sliding block (22), the sliding block (22) is slidingly connected to the top of the fixed disc (1), the top of the sliding block (22) is fixedly connected with a fixed frame (23), the inside of the fixed frame (23) is slidingly connected with a sliding rod (25), the top of the sliding rod (25) is fixedly connected with a pull plate (26), the bottom of the sliding rod (25) is fixedly connected with a limiting disc (29), the bottom of the limiting disc (29) is fixedly connected with a plug rod (21), the sliding rod (25) is sleeved with a spring (24) on the periphery, and the inside bottom of the fixed frame (23) is fixedly connected with an arc-shaped plate (27), and the inside of the arc-shaped plate (27) is threadedly connected with a bolt (28).
2. The mechanical seal dismounting device according to claim 1, characterized in that: The inside of the fixed disc (1) is provided with a sliding groove corresponding to the movement track of the sliding block (22), and the sliding block (22) is slidingly connected in the sliding groove.
3. The mechanical seal dismounting device according to claim 1, characterized in that: The top of the spring (24) is fixedly connected to the inner top of the fixed frame (23), and the bottom of the spring (24) is fixedly connected to the top of the limiting disc (29).
4. The mechanical seal dismounting device according to claim 1, characterized in that: The inside of the fixed frame (23) is provided with a circular hole corresponding to the position of the plug rod (21), and the plug rod (21) is slidingly connected to the inside of the circular hole.
5. The mechanical seal dismounting device according to claim 1, characterized in that: The dismounting mechanism (3) comprises a fixed column (33), the fixed column (33) is threadedly connected on the periphery of the bolt (28), the bottom of the fixed column (33) is fixedly connected with a support column (34), the bottom of the support column (34) is fixedly connected with a plug disc (35), the inside of the fixed disc (1) is threadedly connected with a threaded rod (32), and the top of the threaded rod (32) is fixedly connected with a rotating disc (31).
6. The mechanical seal dismounting device according to claim 5, characterized in that: The inside bottom of the fixed frame (23) is provided with a sliding hole corresponding to the size of the fixed column (33), and the fixed column (33) is inserted into the inside of the sliding hole.
7. The mechanical seal dismounting device according to claim 5, characterized in that: The inside of the fixed disc (1) is provided with a fixed groove corresponding to the sliding track of the fixed column (33), and the fixed column (33) is slidingly connected in the fixed groove.