Mounting assembly for sealing framework

Abstract

The invention discloses an installation assembly used for a sealing framework. The installation assembly used for the sealing framework comprises an installation frame and a sealing assembly, the clamping assembly is connected with the mounting frame and used for clamping a bearing bag, and in the vertical direction, the upper portion of the bearing bag is suitable for placing a sealing framework; the pressing plate assembly is connected with the mounting frame and used for pushing the sealing framework to move in the direction close to or away from the bearing bag, and the pressing plate assembly is provided with a pressing face used for abutting against the sealing framework; wherein the pressure applying surface is a plane, the outer edge of the pressure applying surface is a circle or a concentric multi-section arc, and the maximum diameter of the pressure applying surface is adjustable. According to the mounting assembly for the sealing framework, the pressing plate assembly can be used for pushing the sealing framework to move towards the bearing bag, so that assembling of the sealing framework and the bearing bag is achieved, the assembling difficulty is reduced, and the risks of deformation and damage of the sealing framework can be reduced.

Description

Technical Field

[0001] This application relates to the field of bearing sealing technology, and more particularly to a mounting assembly for a sealing skeleton. Background Technology

[0002] Currently, to enhance sealing performance, reduce the intrusion of liquids such as water and emulsions, and ensure the service life of bearings, some mechanical equipment roller bearings are typically designed and installed with a sealing skeleton for sealing. However, the surface of the sealing skeleton is covered with a layer of rubber, which increases the friction between the seal and the mating surface. This results in the need to apply greater force during installation, and the structure and shape of the sealing skeleton must not be damaged. However, there are no special tools available for installation, and assembly can only be done using hammers, chisels, screwdrivers, etc. This requires constant observation of the sealing status during installation to check for deformation, damage, and other problems, increasing the difficulty of assembly. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an installation assembly for a sealing skeleton, which can use a pressure plate assembly to push the sealing skeleton toward the bearing housing, thereby realizing the assembly of the sealing skeleton and the bearing housing, thus facilitating the reduction of assembly difficulty and reducing the risk of deformation and damage to the sealing skeleton.

[0004] An installation assembly for a sealing skeleton according to an embodiment of this application includes: a mounting frame; a clamping assembly connected to the mounting frame and used to clamp a bearing housing, wherein the sealing skeleton is adapted to be placed above the bearing housing in the vertical direction; and a pressure plate assembly connected to the mounting frame and used to push the sealing skeleton to move toward or away from the bearing housing, wherein the pressure plate assembly has a pressure surface for abutting against the sealing skeleton; wherein the pressure surface is a plane with a circular outer edge or a multi-segment circular arc with a common center, and the maximum diameter of the pressure surface is adjustable.

[0005] According to the embodiment of this application, the mounting assembly for the sealing skeleton can clamp the bearing housing using a clamping assembly, and then use a pressure plate assembly to push the sealing skeleton toward the bearing housing, thereby achieving the assembly of the sealing skeleton and the bearing housing, which facilitates the reduction of assembly difficulty. In particular, the maximum diameter of the pressure surface of the pressure plate assembly is adjustable, so that the maximum diameter of the pressure surface can more accurately match the outer diameter of the sealing skeleton, thereby making the force on the sealing skeleton more uniform when pressure is applied, thus reducing the risk of deformation and damage to the sealing skeleton.

[0006] According to some embodiments of this application, the mounting assembly for sealing the skeleton includes a pressure plate assembly comprising a first drive member, two sub-pressure plates, and a second drive member. The first drive member is connected to the mounting bracket, and the two sub-pressure plates are connected to the first drive member. The first drive member is used to drive the two sub-pressure plates to move toward or away from the bearing housing. In the vertical direction, the outer surfaces of the ends of the two sub-pressure plates opposite to the first drive member together form the pressure surface. The second drive member is used to drive at least one sub-pressure plate to move closer to or away from the other sub-pressure plate to adjust the maximum diameter of the pressure surface.

[0007] According to some embodiments of the present application, in the mounting assembly for sealing the skeleton, the two sub-plates have their opposite edges forming a circular arc with the same center.

[0008] According to some embodiments of this application, in a mounting assembly for a sealing skeleton, the first drive member includes a first threaded rod that passes through a threaded hole in the mounting bracket and is threadedly engaged with the threaded hole.

[0009] According to some embodiments of this application, the mounting assembly for sealing the skeleton includes two connecting arms, each connecting arm being connected between the first threaded rod and a sub-pressure plate; wherein each connecting arm is movably connected to the first threaded rod in the radial direction of the pressure surface so that the maximum diameter of the pressure surface is adjustable.

[0010] According to some embodiments of this application, the mounting assembly for sealing the skeleton, the pressure plate assembly further includes: a stabilizing mechanism, the stabilizing mechanism being detachably connected to the first threaded rod, and the stabilizing mechanism being used to engage the connecting arm with the first threaded rod at the upper radial position of the pressure surface.

[0011] According to some embodiments of this application, in the mounting assembly for sealing the skeleton, the second drive member includes a second threaded rod and a mating nut, at least one of the sub-pressure plates is fixedly provided with the mating nut, the mating nut is sleeved on the second threaded rod, and the axial direction of the second threaded rod is parallel to the extension direction of the diameter of the pressure surface.

[0012] According to some embodiments of the present application, in the mounting assembly for sealing the skeleton, two second driving members are provided, and the orthographic projections of the two second driving members on the sub-pressure plate fall on both sides of the center of the pressure surface.

[0013] According to some embodiments of the present application, in the mounting assembly for sealing the skeleton, both of the sub-plates are constructed in a crescent shape.

[0014] According to some embodiments of this application, a mounting assembly for sealing a skeleton includes a clamping assembly comprising two hooks, both hooks being connected to the mounting bracket, and the distance between the two hooks being adjustable, with a pressure plate assembly located between the two hooks.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a mounting assembly for a sealing skeleton according to some embodiments of this application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of a mounting assembly for a sealing skeleton according to some embodiments of this application. Figure 2 .

[0020] Mounting assembly 100 for sealing skeleton;

[0021] Mounting bracket 10; Mounting hole 11;

[0022] Clamping assembly 20; hook 21; movable rod 211; support plate 212; fixing nut 22;

[0023] Pressure plate assembly 30; first driving component 31; first threaded rod 311; connecting rod 312; joint 313;

[0024] Sub-pressure plate 32; pressure surface 321; second driving component 33; second threaded rod 331; mating nut 332;

[0025] Connecting arm 34; stabilizing mechanism 35. Detailed Implementation

[0026] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0027] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying 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 limitation, 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. The term "two or more" includes two or more cases.

[0028] Currently, to enhance sealing performance, reduce the intrusion of liquids such as water and emulsions, and ensure the service life of bearings, some mechanical equipment roller bearings are typically designed and installed with a sealing skeleton for sealing. However, the surface of the sealing skeleton is covered with a layer of rubber, which increases the friction between the seal and the mating surface. This results in the need to apply greater force during installation, and the structure and shape of the sealing skeleton must not be damaged. However, there are no special tools available for installation, and assembly can only be done using hammers, chisels, screwdrivers, etc. This requires constant observation of the sealing status during installation to check for deformation, damage, and other problems, increasing the difficulty of assembly.

[0029] For example, different tools are selected each time a sealing skeleton is installed, depending on the tightness of the seal and the mating surface. When the fit is loose, a hand hammer is used to tap the sealing skeleton. When the sealing skeleton is flush with the edge of the mating surface, the hand hammer cannot function properly. In this case, a flat chisel with a slightly smaller diameter and no cutting edge is usually selected, supported on the side of the sealing skeleton closest to the mating surface, and the sealing skeleton is installed in the required position by tapping the chisel with the hand hammer. When the fit is tight, the seal is first installed flush with the edge of the mating surface using a hand hammer. Then, a section of cylinder with the same diameter as the outer diameter of the sealing skeleton is made, or a flange with the same diameter as the outer diameter of the seal is found. The seal is then installed in the required position by tapping with a hand hammer. This makes the assembly of the sealing skeleton more difficult.

[0030] In response, this application proposes an installation assembly 100 for sealing a skeleton.

[0031] like Figure 1 As shown, the mounting assembly 100 for sealing the skeleton in this embodiment of the application includes: a mounting bracket 10, a clamping assembly 20, and a pressure plate assembly 30.

[0032] The clamping assembly 20 is connected to the mounting frame 10 and is used to clamp the bearing package. In the vertical direction, the top of the bearing package is suitable for placing the sealing skeleton. The pressure plate assembly 30 is connected to the mounting frame 10 and is used to push the sealing skeleton to move towards or away from the bearing package. The pressure plate assembly 30 is provided with a pressure surface 321 for abutting against the sealing skeleton. The pressure surface 321 is a plane with a circular outer edge or a multi-segment circular arc with a common center. The maximum diameter of the pressure surface 321 is adjustable.

[0033] Understandably, the clamping assembly 20 is connected to the mounting bracket 10 and is used to clamp the bearing housing so that the mounting assembly 100 for the sealing skeleton is fixed relative to the bearing housing. Then, the pressure plate assembly 30 pushes the sealing skeleton toward the bearing housing so that the sealing skeleton is fitted onto the bearing housing, thereby realizing the assembly of the sealing skeleton and the bearing housing. In this way, there is no need for manual assembly using tools such as hammers, chisels, and screwdrivers, which makes it easier to reduce the assembly difficulty.

[0034] Furthermore, the pressure-applying surface 321 is a plane with a circular outer edge or a multi-segment circular arc with a common center, and the maximum diameter of the pressure-applying surface 321 is adjustable. It is understood that the outer diameter of the sealing skeleton is generally circular. Therefore, setting the pressure-applying surface 321 to be a plane with a circular outer edge allows the shape of the pressure-applying surface 321 to be the same as the outer diameter of the sealing skeleton. Simultaneously, the adjustable maximum diameter of the pressure-applying surface 321 ensures that its maximum diameter more accurately matches the outer diameter of the sealing skeleton. Thus, when pressure is applied, the pressure-applying surface 321 can accurately apply pressure to the edge of the outer diameter of the sealing skeleton, resulting in more uniform stress on the sealing skeleton and reducing the risk of deformation and damage.

[0035] According to the embodiment of this application, the mounting assembly 100 for the sealing skeleton can clamp the bearing housing through the clamping assembly 20, and then push the sealing skeleton toward the bearing housing using the pressure plate assembly 30, thereby realizing the assembly of the sealing skeleton and the bearing housing, which facilitates the reduction of assembly difficulty. In particular, the maximum diameter of the pressure surface 321 of the pressure plate assembly 30 is adjustable, so that the maximum diameter of the pressure surface 321 can more accurately match the outer diameter of the sealing skeleton, thereby making the force on the sealing skeleton more uniform when pressure is applied, thereby reducing the risk of deformation and damage to the sealing skeleton.

[0036] In some implementations, the pressure plate assembly 30 includes a first drive member 31, two sub-pressure plates 32, and a second drive member 33. The first drive member 31 is connected to the mounting bracket 10, and both sub-pressure plates 32 are connected to the first drive member 31. The first drive member 31 is used to drive the two sub-pressure plates 32 to move toward or away from the bearing housing.

[0037] In this way, the first driving member 31 can be used to drive the two sub-pressure plates 32 to move toward the bearing housing, thereby realizing the assembly of the sealing skeleton and the bearing housing, which makes it easier to reduce the assembly difficulty. Alternatively, the first driving member 31 can be used to drive the two sub-pressure plates 32 to move away from the bearing housing, thereby increasing the distance between the sub-pressure plates 32 and the bearing housing, which makes it easier to place the sealing skeleton.

[0038] In some implementations, the first driving component 31 includes, but is not limited to, a hydraulic drive device, a linear stepper motor, or an electric telescopic rod, etc., which are not limited here.

[0039] Furthermore, in the vertical direction, the outer surfaces of the two sub-pressure plates 32 at the ends opposite to the first driving member 31 together constitute the pressure surface 321. It can be understood that the pressure surface 321 is the outer surface of the two sub-pressure plates 32 at the ends opposite to the first driving member 31. This avoids interference between the pressure surface 321 and the first driving member 31, and the fact that the outer surfaces of the two sub-pressure plates 32 at the ends opposite to the first driving member 31 together constitute the pressure surface 321 reduces the design complexity of the pressure surface 321.

[0040] The second driving member 33 is used to drive at least one sub-pressure plate 32 closer to or further away from another sub-pressure plate 32 to adjust the maximum diameter of the pressure surface 321.

[0041] For example, the second driving member 33 is used to drive one sub-pressure plate 32 to move closer to or further away from the other sub-pressure plate 32 to adjust the maximum diameter of the pressure surface 321. In this way, the maximum diameter of the pressure surface 321 can be adjusted by adjusting the distance between the two sub-pressure plates 32 through the second driving member 33, thereby reducing the difficulty of adjusting the maximum diameter of the pressure surface 321.

[0042] Alternatively, the second driving member 33 can be used to drive the two sub-pressure plates 32 to move toward or away from each other to adjust the maximum diameter of the pressure surface 321. In this way, the maximum diameter of the pressure surface 321 can be adjusted by adjusting the distance between the two sub-pressure plates 32 through the second driving member 33, thereby reducing the difficulty of adjusting the maximum diameter of the pressure surface 321.

[0043] In some implementations, the second driving component 33 includes, but is not limited to, a hydraulic drive device, a linear stepper motor, or an electric telescopic rod, etc., which are not limited here.

[0044] In some implementations, the two sub-plates 32 are on opposite sides of each other, forming a circular arc with the same center.

[0045] Therefore, by setting the two sub-pressure plates 32 with their opposite edges forming a common arc, the opposite edges of the two sub-pressure plates 32 together form a circle, which more accurately matches the outer diameter of the sealing skeleton. As a result, when pressure is applied, the sealing skeleton is subjected to more uniform force, thereby reducing the risk of deformation and damage to the sealing skeleton.

[0046] In some implementations, such as Figure 1 As shown, the first driving member 31 includes a first threaded rod 311, which passes through the threaded hole of the mounting bracket 10 and is threadedly engaged with the threaded hole.

[0047] Thus, when the first threaded rod 311 rotates, while engaging with the threaded hole, it moves axially, driving the two sub-pressure plates 32 to move closer to the bearing housing to push the sealing skeleton onto the bearing housing. In other cases, when the first threaded rod 311 rotates, while engaging with the threaded hole, it moves axially, driving the two sub-pressure plates 32 to move further away from the bearing housing to increase the distance between the sub-pressure plates 32 and the bearing housing, thus facilitating the placement of the sealing skeleton.

[0048] It is worth noting that the threaded engagement between the first threaded rod 311 and the threaded hole in this application is a screw motion. The reason why this application uses screw pressurization instead of a hydraulic device is to ensure installation quality. Screw pressurization has stronger controllability and makes it easier to observe the status of the sealing skeleton during the installation process.

[0049] In some implementations, such as Figure 1 As shown, the first driving component 31 also includes a connector 313 and a connecting rod 312. The connecting rod 312 is connected to the first threaded rod 311 through the connector 313. Both sub-pressure plates 32 are connected to the connecting rod 312. This makes it easier to reduce the difficulty of connecting the first threaded rod 311 and the sub-pressure plates 32.

[0050] In some implementations, such as Figure 1 As shown, the pressure plate assembly 30 also includes two connecting arms 34, each connecting arm 34 being connected between the first threaded rod 311 and a sub-pressure plate 32, thereby reducing the difficulty of connecting the sub-pressure plate 32 and the first threaded rod 311.

[0051] Each connecting arm 34 is movably connected to the first threaded rod 311 in the radial direction of the pressure surface 321, making the maximum diameter of the pressure surface 321 adjustable. This allows each connecting arm 34 and the first threaded rod 311 to move relative to each other in the radial direction of the pressure surface 321, whether the two sub-pressure plates 32 are close to or far from each other, thus ensuring that the sub-pressure plates 32 are always in a horizontal state and consequently guaranteeing their stability.

[0052] In some implementations, such as Figure 1 As shown, the pressure plate assembly 30 further includes a stabilizing mechanism 35, which is detachably connected to the first threaded rod 311, and the stabilizing mechanism 35 is used to engage the connecting arm 34 with the first threaded rod 311 in the radial upper limit of the pressure surface 321.

[0053] Therefore, a stable structure can be used to fix the connecting arm 34 and the first threaded rod 311 radially relative to each other on the pressure surface 321, thereby avoiding the swaying of the connecting arm 34 from left to right and ensuring the structural stability of the connecting arm 34.

[0054] In some implementations, such as Figure 1 As shown, the second driving member 33 includes a second threaded rod 331 and a mating nut 332. At least one sub-pressure plate 32 is fixedly provided with a mating nut 332. The mating nut 332 is sleeved on the second threaded rod 331, and the axial direction of the second threaded rod 331 is perpendicular to the distribution direction of the two sub-pressure plates 32 and parallel to the extension direction of the diameter of the pressure surface 321.

[0055] In this way, by rotating the second threaded rod 331, the mating nut 332 can be moved in the axial direction of the second threaded rod 331. Since the axial direction of the second threaded rod 331 is perpendicular to the distribution direction of the two sub-pressure plates 32 and parallel to the extension direction of the diameter of the pressure surface 321, when the second threaded rod 331 rotates, it can drive at least one sub-pressure plate 32 to move closer to or further away from the other sub-pressure plate 32 to adjust the maximum diameter of the pressure surface 321.

[0056] In some embodiments, each of the two sub-pressure plates 32 is provided with a mating nut 332, and the two axial ends of the second threaded rod 331 are respectively threadedly engaged with the mating nuts 332 on the two sub-pressure plates 32. In this way, when the second threaded rod 331 rotates, it can drive the two sub-pressure plates 32 to move closer or further away from each other to adjust the maximum diameter of the pressure surface 321, thereby reducing the difficulty of adjusting the maximum diameter of the pressure surface 321 and improving the adjustment speed and thus improving the adjustment efficiency.

[0057] In some implementations, such as Figure 1 and Figure 2As shown, there are two second driving members 33, and the orthographic projection of the two second driving members 33 on the sub-pressure plate 32 falls on both sides of the center of the pressure surface 321.

[0058] This makes it easier to reduce the difficulty of setting up the second driving member 33, and enables the second driving member 33 to enhance the motion stability of the sub-pressure plate 32 in the process of driving at least one sub-pressure plate 32 to move closer or further away from another sub-pressure plate 32 to adjust the maximum diameter of the pressure surface 321.

[0059] In some implementations, such as Figure 1 and Figure 2 As shown, both sub-pressure plates 32 are constructed in a crescent shape.

[0060] In this way, compared with the semi-circular structure, the crescent-shaped sub-pressure plate 32 has a smaller volume, which makes it easier to reduce the volume of the sub-pressure plate 32, thereby facilitating the miniaturization design of the sub-pressure plate 32 and reducing its weight.

[0061] In some implementations, such as Figure 1 As shown, the clamping assembly 20 includes two hooks 21, both of which are connected to the mounting bracket 10, and the distance between the two hooks 21 is adjustable. The pressure plate assembly 30 is located between the two hooks 21.

[0062] Therefore, the distance between the two hooks 21 can be adjusted according to the size of the bearing package to accommodate bearing packages of different sizes, and the two pressure plate assemblies 30 are located between the two hooks 21 so that the arrangement of the pressure plate assemblies 30 can utilize the space between the two hooks 21, thereby improving space utilization.

[0063] In some embodiments, such as Figure 1 As shown, the hook 21 includes a movable rod 211 and a support plate 212. The movable rod 211 passes through the mounting hole 11 of the mounting bracket 10. The support plate 212 is connected to the movable rod 211 and is adapted to support the bottom of the bearing housing. The mounting hole 11 is a strip-shaped hole, and the movable rod 211 is provided with external threads. The movable rod 211 is adapted to move within the strip-shaped hole. When it is necessary to fix the movable rod 211, a fixing nut 22 can be sleeved on the movable rod 211 and threadedly engaged with the movable rod 211 to achieve relative fixation between the movable rod 211 and the mounting bracket 10, thereby ensuring the structural stability of the hook 21.

[0064] According to the mounting assembly 100 for sealing the skeleton according to the embodiments of this application, this application also provides an installation method, which is as follows:

[0065] First, adjust the horizontal distance between the two hooks 21 on the mounting bracket 10 according to the size of the bearing housing, so that the hooks 21 can fully support the bearing housing. Then, adjust the distance between the two sub-pressure plates 32 according to the outer diameter of the sealing skeleton. Then, tighten the stabilizing mechanism 35 to prevent the connecting arm 34 from wobbling left and right. Then, rotate the first threaded rod 311 so that the first threaded rod 311 will move along its own axial direction, thereby driving the two sub-pressure plates 32 to move towards the bearing housing to push the sealing skeleton to be fitted onto the bearing housing, thereby realizing the installation of the sealing skeleton and the bearing housing.

[0066] It should be noted that in this technology, the lack of specialized tools means that tools must be selected and found based on the specific circumstances each time installation is performed, resulting in low work efficiency. Furthermore, the tightness of the fit must be judged based on experience, feel, or even simply by observing the condition of the seal. Slight negligence can damage the sealing frame, rendering it unusable and causing a loss of sealing function, necessitating replacement and increasing the scrap rate and cost of spare parts.

[0067] The installation assembly 100 for sealing the skeleton according to the embodiments of this application can solve the problems of lack of special tools, high failure rate of sealing installation, low work efficiency, and personal injury accidents caused by human error.

[0068] Therefore, this application has at least the following advantages compared to related technologies:

[0069] 1. The mounting assembly 100 for sealing skeleton of this application makes the installation of sealing skeleton convenient and quick.

[0070] 2. Due to the adjustable distance between the two sub-pressure plates 32, this application allows for the installation of sealing frames of different diameters.

[0071] 3. This application reduces the time spent by personnel searching for tools due to unsuitable tools, and reduces the risk of equipment being damaged due to unsuitable tools.

[0072] 4. This application reduces the scrap rate of spare parts and improves the success rate of sealing frame installation, which is a way to reduce costs and increase efficiency.

[0073] 5. After the application of this application, the risk of safety accidents caused by blind operation by personnel is reduced.

[0074] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0075] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0076] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0077] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A mounting assembly (100) for sealing a skeleton, characterized in that, include: Mounting bracket (10); A clamping assembly (20) is connected to the mounting bracket (10) and is used to clamp the bearing package. In the vertical direction, a sealing skeleton is placed above the bearing package. A pressure plate assembly (30) is connected to the mounting bracket (10) and is used to push the sealing skeleton toward or away from the bearing housing. The pressure plate assembly (30) is provided with a pressure surface (321) for abutting against the sealing skeleton. The pressure surface (321) is a plane with a circular outer edge or multiple circular arcs with the same center, and the maximum diameter of the pressure surface (321) is adjustable.

2. The mounting assembly (100) for sealing the skeleton according to claim 1, characterized in that, The pressure plate assembly (30) includes a first drive member (31), two sub-pressure plates (32), and a second drive member (33). The first drive member (31) is connected to the mounting bracket (10), and both sub-pressure plates (32) are connected to the first drive member (31). The first drive member (31) is used to drive the two sub-pressure plates (32) to move toward or away from the bearing housing. In the vertical direction, the outer surfaces of the ends of the two sub-pressure plates (32) opposite to the first drive member (31) together form the pressure surface (321). The second drive member (33) is used to drive at least one sub-pressure plate (32) to move closer to or away from the other sub-pressure plate (32) to adjust the maximum diameter of the pressure surface (321).

3. The mounting assembly (100) for sealing the skeleton according to claim 2, characterized in that, The two sub-plates (32) are on opposite sides of each other and are circular arcs with the same center.

4. The mounting assembly (100) for sealing the skeleton according to claim 2, characterized in that, The first drive member (31) includes a first threaded rod (311), which passes through the threaded hole of the mounting bracket (10) and is threadedly engaged with the threaded hole.

5. The mounting assembly (100) for sealing the skeleton according to claim 4, characterized in that, The pressure plate assembly (30) further includes two connecting arms (34), each of the connecting arms (34) being connected between the first threaded rod (311) and a sub-pressure plate (32); Each of the connecting arms (34) is movably connected to the first threaded rod (311) in the radial direction of the pressure surface (321) so that the maximum diameter of the pressure surface (321) is adjustable.

6. The mounting assembly (100) for sealing the skeleton according to claim 5, characterized in that, The pressure plate assembly (30) further includes a stabilizing mechanism (35), which is detachably connected to the first threaded rod (311) and is used to engage the connecting arm (34) with the first threaded rod (311) at the upper radial position of the pressure surface (321).

7. The mounting assembly (100) for sealing the skeleton according to claim 2, characterized in that, The second driving member (33) includes a second threaded rod (331) and a mating nut (332). The mating nut (332) is fixedly disposed on at least one of the sub-pressure plates (32). The mating nut (332) is sleeved on the second threaded rod (331), and the axial direction of the second threaded rod (331) is parallel to the extension direction of the diameter of the pressure surface (321).

8. The mounting assembly (100) for sealing the skeleton according to claim 7, characterized in that, There are two second driving members (33), and the orthographic projection of the two second driving members (33) on the sub-pressure plate (32) falls on both sides of the center of the pressure surface (321).

9. The mounting assembly (100) for sealing the skeleton according to claim 2, characterized in that, Both of the sub-plates (32) are constructed in a crescent shape.

10. The mounting assembly (100) for sealing the skeleton according to any one of claims 1-9, characterized in that, The clamping assembly (20) includes two hooks (21), both of which are connected to the mounting bracket (10), and the distance between the two hooks (21) is adjustable. The pressure plate assembly (30) is located between the two hooks (21).

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