Mechanical seal dismounting device of mechanical seal box

Abstract

The utility model discloses a mechanical seal dismounting device of a mechanical seal box, which belongs to the technical field of mechanical seal dismounting, and comprises a support frame and a support disc, the support frame is movably connected with the support disc, the support frame comprises a cross beam with a strip-shaped structure, and two ends of the cross beam are movably connected with support columns with strip-shaped structures. The side, close to the supporting disc, of the bottom of the supporting column is fixedly provided with a connecting part, and the supporting column is movably connected with the supporting disc through the connecting part. The end of the cross beam is hollow, a first connecting rod matched with the cross beam is arranged at the end, connected with the cross beam, of the supporting column, and the cross beam is adjustably arranged on the first connecting rod in a sleeving mode. The mechanical seal disassembling device has the advantages that only the two structures of the supporting frame and the supporting disc are adopted, the structure is simple, the mechanical seal disassembling device is suitable for disassembling mechanical seals of mechanical seal boxes of different specifications, the levelness and stress points of a mechanical seal assembly can be conveniently adjusted, mechanical seal inner sleeve parts in the mechanical seals are better protected, the maintenance cost is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine seal disassembly, and in particular relates to a machine seal disassembly device for a machine seal box. Background Art

[0002] A mechanical seal is a universal shaft sealing device that consists of at least one pair of end faces perpendicular to the axis of rotation that remain in contact and slide relative to each other under the action of fluid pressure, the elastic force or magnetic force of a compensation mechanism, and the cooperation of an auxiliary seal to prevent fluid leakage. It is commonly used in rotary fluid machinery such as pumps, compressors, and reaction stirred tanks, and is also used for seals in gear boxes, valves, rotary joints, and ship tail shafts. Therefore, mechanical seals often need to be replaced due to wear or corrosion.

[0003] At present, the mechanical seals of large mechanical seal boxes are often disassembled by violent knocking. The traditional hammer and chisel knocking method is used to displace the mechanical seal and disengage the bearing to replace the mechanical seal. During the knocking process, the mechanical seal is easily deformed or damaged due to the impact force, making it unusable. In addition, if the mechanical seal is damaged during the disassembly process, it is generally difficult to repair and can only be replaced with a new mechanical seal box, which increases the maintenance cost and maintenance time. In addition, this method of replacing seals has the disadvantages of excessive labor intensity and high maintenance costs, which is not conducive to the development of enterprises.

[0004] Some patents on the disassembly of machine seals are disclosed in the prior art, among which the utility model patent with the announcement number CN219444126U discloses a device for disassembling the seal of Ikato mixer, which includes an Ikato mixer seal, a main shaft and a machine seal fixing frame, including a steel plate base, a reinforcing steel plate fixed under the center of the steel plate base, a jack base fixed under the reinforcing steel plate, a jack hydraulic device installed on the jack base, the steel plate base is fixedly connected to the lower end of the fixed frame of the Ikato mixer seal, and the jack hydraulic device is extended and presses on the main shaft of the Ikato mixer seal. Although the problem of low disassembly efficiency in the process of disassembling the machine seal is solved, there are still problems such as high damage rate of the machine seal during the disassembly operation of the staff, complicated operation, and high labor intensity.

[0005] In view of this, the inventor conducted in-depth research on the demand for simple and safe disassembly of the mechanical seal, easy operation and low labor intensity, and ensuring the quality of the mechanical seal after disassembly, which resulted in the present case. Utility Model Content

[0006] In order to overcome the problems of high damage rate, complicated operation and high labor intensity of machine seal disassembly during the operation of workers in the prior art, the utility model provides a machine seal disassembly device for a machine seal box, comprising a support frame and a support plate, wherein the support frame and the support plate are movably connected, the support frame comprises a cross beam with a long strip structure, and support columns with a strip structure are movably connected at both ends of the cross beam, a connecting portion is fixedly arranged on one side of the bottom of the support column close to the support plate, the support column is movably connected to the support plate through the connecting portion, and a jack is arranged in the middle of the bottom surface of the cross beam;

[0007] The end of the crossbeam is hollow, and one end of the support column connected to the crossbeam is provided with a first connecting rod matching the inner diameter of the crossbeam, and the crossbeam can be adjustably sleeved on the first connecting rod.

[0008] The combination of the support frame and the support plate makes the overall device simple in structure, easy to assemble and use. The crossbeam and the support column, as well as the support column and the support plate, are all set as active connections, which can adapt to different specifications of mechanical seal boxes. The mechanical seal assembly can be clamped between the jack and the support plate for easy operation, and it is also convenient to adjust the horizontality of the mechanical seal assembly and the stress point of the impact. It can also better protect the inner sleeve components of the mechanical seal in the mechanical seal without damaging the mechanical seal, reduce maintenance costs, increase the safety factor of maintenance personnel during operation, reduce the labor intensity of maintenance personnel, and improve work efficiency.

[0009] Furthermore, the support plate is a circular ring structure with a certain height, and observation windows are provided on the upper edges of the support plate away from the support columns on both sides.

[0010] Through the above technical scheme, the support plate is set to a circular ring structure with a certain height, which can effectively protect the mechanical seal from falling into the inside of the support plate ring after disassembly, thereby protecting the mechanical seal structure. At the same time, the support plate is set to a circular ring shape, which can facilitate the disassembly of the mechanical seal component that is not convenient to be stuck between the jack and the support plate by pressing it against the bottom end of the support plate. In addition, an observation window is provided on the upper edge of the support plate to facilitate observation of the falling of the mechanical seal and facilitate operation.

[0011] Furthermore, the connecting part includes a cross bar, the middle part of which is fixedly connected to the support column, and a second connecting rod is fixedly provided on one side of the two free ends of the cross bar close to the support plate, the end of the second connecting rod is hollow, and a sleeve rod is provided on the outer side wall of the support plate corresponding to the second connecting rod, and the sleeve rod is sleeved on the outer side of the second connecting rod.

[0012] Through the above technical solution, a socket rod is arranged on the outer side wall of the support plate, a second connecting rod is arranged on the corresponding support column, and the end of the second connecting rod is set to be hollow. The two can be socketed during use, and the socket position can be adjusted to fix them when necessary, which is beneficial to adjust the horizontality of the mechanical sealing assembly and the stress point of the impact. At the same time, it can also adapt to mechanical sealing assemblies of different types and specifications, and has higher adaptability.

[0013] Furthermore, the lower end surface of the bottom of the support column is flush with the bottom end surface of the support plate.

[0014] Through the above technical solution, the lower end surface of the bottom of the support column is set flush with the bottom end surface of the support plate, which can be beneficial for the connection between the support column and the support plate not to be greatly affected by external force when the device is using a jack.

[0015] Furthermore, a fixing bolt is threadedly connected to the outer wall of the end of the second connecting rod, and the fixing bolt passes through the second connecting rod and abuts against the sleeve rod.

[0016] Furthermore, at least three internal threaded holes are arranged at both ends of the crossbeam in the transverse direction, and limiting holes are arranged on the first connecting rod corresponding to the internal threaded holes, and limiting bolts are arranged through the internal threaded holes and abut against the limiting holes.

[0017] Furthermore, the jack is a screw jack, a hand wheel is arranged on the outside of the jack, a handle is inserted on the hand wheel, a connecting block is fixedly arranged in the middle of the bottom surface of the beam, and the connecting block is rotatably connected to the top of the jack.

[0018] Furthermore, a supporting connecting rod is provided between the jack and the two supporting columns, the supporting connecting rod is movably connected to the supporting columns and the outer side walls of the jack, and the supporting connecting rod is an automatically telescopic rod.

[0019] Through the above technical solution, a supporting connecting rod is arranged between the supporting column and the jack, which can help prevent the jack from shaking due to the shaking of the device body when being taken or used. It is also convenient to adjust the horizontality of the mechanical seal abutment and the force point of the impact, which is convenient for use and operation.

[0020] Furthermore, an abutment plate is fixedly provided at the bottom end of the jack.

[0021] Furthermore, the support frame and the support plate are both made of stainless steel.

[0022] Beneficial effects:

[0023] The beneficial effects produced by adopting the technical solution of the utility model are as follows:

[0024] (1) The support frame and the support plate are combined to make the overall device simple in structure, easy to assemble and use. The crossbeam and the support column, as well as the support column and the support plate, are all set as movable connections, which can be adapted to the mechanical seal boxes of different specifications. The mechanical seal assembly can be clamped between the jack and the support plate for easy operation. It is also convenient to adjust the horizontality of the mechanical seal assembly and the force point of the impact, and can also better protect the inner sleeve components of the mechanical seal in the mechanical seal without damaging the mechanical seal, thereby reducing maintenance costs, increasing the safety factor of maintenance personnel during operation, reducing the labor intensity of maintenance personnel, and improving work efficiency.

[0025] (2) The support plate is set as a circular ring structure with a certain height, which can effectively protect the mechanical seal and allow it to fall into the inner part of the circular ring of the support plate after disassembly, thereby protecting the mechanical seal structure. At the same time, the support plate is set as a circular ring, which can facilitate the disassembly of the mechanical seal component that is not convenient to be stuck between the jack and the support plate by pressing it against the bottom end of the support plate. In addition, an observation window is opened on the edge of the support plate to facilitate observation of the degree of falling of the mechanical seal so as to adjust the force of the jack, which is convenient for operation.

[0026] (3) A sleeve rod is provided on the outer wall of the support plate, and a second connecting rod is provided on the corresponding support column, and the end of the second connecting rod is set to be hollow. The two can be sleeved together when in use, and the sleeve position can be adjusted to fix them when necessary, which is conducive to adjusting the horizontality of the mechanical seal assembly and the stress point of the impact. At the same time, it can also adapt to mechanical seal assemblies of different types and specifications, has higher adaptability, can meet the prerequisites for disassembly and assembly of various mechanical seal components, and improves maintenance efficiency.

[0027] (4) A proprietary tool designed for disassembly and assembly of the seal according to the specific dimensions of the seal fixing frame facilitates separation of the seal during disassembly, thus ensuring the integrity of the seal. The jack retracts and contracts along the main axis when working, and the contact area between the two is large. The reaction force of the seal is used to separate the seal and the guard plate, thus avoiding damage to the seal caused by knocking, which greatly reduces damage to the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a front view of a mechanical seal disassembly device of a mechanical seal box of the utility model;

[0030] Figure 2 It is a structural schematic diagram of a mechanical seal disassembly device of a mechanical seal box of the utility model;

[0031] In the figure, 1, support frame; 2, support plate; 3, crossbeam; 4, support column; 5, jack; 6, first connecting rod; 7, observation window; 8, second connecting rod; 9, sleeve rod; 10, fixing bolt; 11, limiting bolt; 12, connecting block; 13, supporting connecting rod; 14, abutment plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0033] This embodiment adopts a combination of two structures, the support frame and the support plate, to make the overall device structure simple, easy to assemble and use. The crossbeam and the support column and the support column and the support plate are all set as active connections, which can be adapted to different specifications of the machine seal box. The machine seal assembly can be stuck between the jack and the support plate for easy operation. It is also convenient to adjust the horizontality of the mechanical seal assembly and the force point of the impact. The reaction force of the machine seal is used to separate the machine seal and the guard plate to avoid damage to the machine seal caused by knocking, which greatly reduces the damage to the machine seal, improves the safety factor of the staff during operation, reduces the labor intensity of the maintenance personnel, and improves work efficiency. The specific implementation method is as follows:

[0034] like Figure 1 and Figure 2 As shown, a mechanical seal disassembly device for a mechanical seal box comprises a support frame 1 and a support plate 2, the support frame 1 and the support plate 2 are movably connected, the support frame 1 comprises a cross beam 3 of a long strip structure, both ends of the cross beam 3 are movably connected with support columns 4 of a strip structure, a connecting portion is fixedly provided on one side of the bottom of the support column 4 close to the support plate 2, the support column 4 is movably connected to the support plate 2 through the connecting portion, and a jack 5 is provided in the middle of the bottom surface of the cross beam 3; the end of the cross beam 3 is hollow, and one end of the support column 4 connected to the cross beam 3 is provided with a first connecting rod 6 matching the inner diameter of the cross beam 3, and the cross beam 3 can be adjustably sleeved on the first connecting rod 6.

[0035] Here, the two structures of support frame and support plate are combined to make the overall device simple in structure, easy to assemble and use. The crossbeam and support column, as well as the support column and support plate are all set as movable connections, which can be adapted to different specifications of mechanical seal boxes. The mechanical seal components can be clamped between the jack and the support plate for easy operation. It is also convenient to adjust the horizontality of the mechanical seal components and the stress points of the impact, and can also better protect the inner sleeve components of the mechanical seal in the mechanical seal, without damaging the mechanical seal, reducing maintenance costs, improving the safety factor of maintenance personnel during operation, reducing the labor intensity of maintenance personnel, and improving work efficiency.

[0036] As a preferred embodiment, the support plate 2 is a circular ring structure with a certain height, and observation windows 7 are provided on the upper edges of the support plate 2 away from the support columns 4 on both sides.

[0037] Here, the support plate is set as a ring structure with a certain height, which can effectively protect the machine seal so that it can fall into the inside of the support plate ring after disassembly to protect the machine seal structure. At the same time, the support plate is set to a ring shape, which can facilitate the disassembly of the mechanical seal component that is not convenient to be stuck between the jack and the support plate by pressing it against the bottom of the support plate. In addition, an observation window is opened on the edge of the support plate to facilitate observation of the falling of the machine seal, which is convenient for operation.

[0038] As a preferred embodiment, the connecting part includes a cross bar, the middle part of which is fixedly connected to the support column 4, and the second connecting rod 8 is fixedly provided on one side of the two free ends of the cross bar close to the support plate 2, and the end of the second connecting rod 8 is hollow, and the outer wall of the support plate 2 is provided with a sleeve rod 9 corresponding to the second connecting rod 8, and the sleeve rod 9 is sleeved on the outer side of the second connecting rod 8.

[0039] Here, a socket rod is arranged on the outer wall of the support plate 2, a second connecting rod is arranged on the corresponding support column, and the end of the second connecting rod is set to be hollow. The two can be socketed when in use, and the socket position can be adjusted to fix them when necessary, which is beneficial to adjust the horizontality of the mechanical sealing assembly and the stress point of the impact. At the same time, it can also adapt to mechanical sealing assemblies of different types and specifications, and has higher adaptability.

[0040] As a preferred embodiment, the lower end surface of the bottom of the support column 4 is flush with the bottom end surface of the support plate 2 .

[0041] Here, setting the lower end surface of the bottom of the support column flush with the bottom end surface of the support plate can help prevent the connection between the support column and the support plate from being greatly affected by external forces when the device is using a jack.

[0042] As a preferred embodiment, a fixing bolt 10 is threadedly connected to the outer wall of the end of the second connecting rod 8 , and the fixing bolt 10 passes through the second connecting rod 8 and abuts against the sleeve rod 9 .

[0043] Here, by providing a fixing bolt 10 on the outer wall of the end of the second connecting rod 8, it is more conducive to fixing and adjusting the connection between the second connecting rod 8 and the sleeve rod 9, and it is easy to operate to ensure that the mechanical seal can be disassembled smoothly.

[0044] As a preferred embodiment, at least three internal threaded holes are arranged at both ends of the cross beam 3 in the transverse direction, and limiting holes are arranged on the first connecting rod 6 corresponding to the internal threaded holes, and limiting bolts 11 are arranged through the internal threaded holes to abut against the limiting holes.

[0045] Here, limiting bolts 11 are provided on the cross beam 3 and the first connecting rod 6 sleeved in the cross beam 3 , so as to facilitate adjustment of the relative position of the connection between the cross beam 3 and the first connecting rod 6 .

[0046] As a preferred embodiment, the jack 5 is a screw jack 5 , a handwheel is provided on the outside of the jack 5 , a handle is inserted on the handwheel, a connecting block 12 is fixedly provided in the middle of the bottom surface of the beam 3 , and the connecting block 12 is rotatably connected to the top of the jack 5 .

[0047] As a preferred embodiment, a supporting link 13 is provided between the jack 5 and the two supporting columns 4. The supporting link 13 is movably connected to the supporting columns 4 and the outer side walls of the jack 5. The supporting link 13 is an automatically retractable rod.

[0048] Here, a supporting connecting rod is provided between the supporting column and the jack, which can prevent the jack from shaking due to the shaking of the device body when being taken or used, and also facilitates the adjustment of the horizontality of the abutment of the mechanical sealing component and the stress point of the impact, so as to facilitate the use and operation.

[0049] As a preferred embodiment, an abutment plate 14 is fixedly provided at the bottom end of the jack 5 .

[0050] Here, an abutment plate 14 is fixedly provided at the bottom end of the jack 5, which can increase the contact area between the bottom of the jack and the mechanical seal, so that the force applied to the mechanical seal can be more uniform when the device is in use, so as to achieve the purpose of better disassembly of the mechanical seal.

[0051] As a preferred implementation, the support frame 1 and the support plate 2 are both made of stainless steel.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mechanical seal disassembly device for a mechanical seal box, characterized in that: The invention comprises a support frame (1) and a support plate (2), wherein the support frame (1) and the support plate (2) are movably connected, the support frame (1) comprises a cross beam (3) of a long strip structure, both ends of the cross beam (3) are movably connected to support columns (4) of a strip structure, a connecting portion is fixedly provided on one side of the bottom of the support column (4) close to the support plate (2), the support column (4) is movably connected to the support plate (2) via the connecting portion, and a jack (5) is provided in the middle of the bottom surface of the cross beam (3); The end of the cross beam (3) is hollow, and one end of the support column (4) connected to the cross beam (3) is provided with a first connecting rod (6) matching the inner diameter of the cross beam (3), and the cross beam (3) can be adjustably sleeved on the first connecting rod (6).

2. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: The support plate (2) is a circular ring structure with a certain height, and an observation window (7) is provided on the upper edge of the support plate (2) away from the support columns (4) on both sides.

3. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: The connecting portion comprises a cross bar, the middle portion of which is fixedly connected to the support column (4), and a second connecting rod (8) is fixedly arranged on one side of the two free ends of the cross bar close to the support plate (2), and the end of the second connecting rod (8) is hollow, and a sleeve rod (9) is arranged on the outer wall of the support plate (2) corresponding to the second connecting rod (8), and the sleeve rod (9) is sleeved inside the second connecting rod (8).

4. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: The lower end surface of the bottom of the support column (4) is flush with the bottom end surface of the support plate (2).

5. The mechanical seal disassembly device of a mechanical seal box according to claim 3, characterized in that: A fixing bolt (10) is threadedly connected to the outer wall of the end of the second connecting rod (8), and the fixing bolt (10) passes through the second connecting rod (8) and abuts against the sleeve rod (9).

6. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: At least three internal threaded holes are arranged at both ends of the cross beam (3) in the transverse direction, and a limiting hole is arranged on the first connecting rod (6) corresponding to the internal threaded hole, and a limiting bolt (11) is arranged through the internal threaded hole and abuts against the limiting hole.

7. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: The jack (5) is a screw jack (5), a hand wheel is arranged on the outer side of the jack (5), a handle is inserted on the hand wheel, a connecting block (12) is fixedly arranged in the middle of the bottom surface of the cross beam (3), and the connecting block (12) is rotatably connected to the top of the jack (5).

8. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: A supporting connecting rod (13) is provided between the jack (5) and the two supporting columns (4); the supporting connecting rod (13) is movably connected to the supporting columns (4) and the outer side walls of the jack (5); and the supporting connecting rod (13) is an automatically telescopic rod.

9. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: A contact plate (14) is fixedly provided at the bottom end of the jack (5).

10. The mechanical seal disassembly device of a mechanical seal box according to claim 1, characterized in that: The support frame (1) and the support plate (2) are both made of stainless steel.

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