Fixing support capable of effectively reducing vibration of cantilever type centrifugal pump bearing box

Abstract

The utility model discloses a fixing support capable of effectively reducing vibration of a cantilever type centrifugal pump bearing box, which relates to the technical field of mechanical engineering and comprises a first steel plate, a second steel plate used for forming a support body structure is arranged on the upper surface of the first steel plate, and two supporting legs used for supporting the whole support are fixedly connected to the lower surface of the second steel plate. The surfaces of the two supporting legs are each provided with a jackscrew used for achieving up-down fixing and left-right adjusting of the support, the opposite back faces of the two supporting legs are each provided with a nut, in the operation process of the centrifugal pump, the support restrains vibration displacement of the bearing box through the structural strength of the support and a stable connecting mode, vibration is transmitted and dispersed to the whole support and a pump base, and therefore the vibration displacement of the bearing box is restrained. By means of rigid connection of the support and the pump base, the vibration amplitude of the bearing box is reduced, vibration is effectively restrained, operation stability is improved, impact and abrasion of vibration to key components such as a mechanical seal and a bearing are reduced, and the service life of the components is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. Background Technology

[0002] The mounting bracket for the bearing housing of a cantilever centrifugal pump is a crucial component of cantilever centrifugal pump equipment. Cantilever centrifugal pumps are widely used in industrial production to transport various fluid media. Their working principle relies on the centrifugal force generated by the rotation of the impeller to achieve fluid transport. In actual operation, the stability of the centrifugal pump bearing housing is paramount, and this mounting bracket plays a key role.

[0003] Typically, a cantilever centrifugal pump mainly comprises the following structure:

[0004] 1. Pump body: As the main structure for fluid transport, it provides a channel and working space for fluid flow;

[0005] 2. Impeller: It imparts kinetic energy to the fluid through high-speed rotation and is the core component for fluid transport;

[0006] 3. Bearing housing: Used to support the pump shaft and reduce friction, ensuring stable operation of the pump shaft;

[0007] 4. Bracket: It provides support and fixation for components such as bearing housing.

[0008] Currently, various support and vibration reduction measures exist to ensure the stable operation of cantilever centrifugal pumps. Some methods involve increasing the size of the pump foundation to enhance overall stability; others add rubber vibration damping pads between the bearing housing and the pump base to reduce vibration transmission. Additionally, some methods improve operational smoothness by optimizing the pump body structural design.

[0009] However, the above-mentioned implementation methods still have the following problems: increasing the size of the pump body foundation will increase the equipment footprint and cost; rubber vibration damping pads are prone to aging after long-term use, resulting in a decrease in vibration damping effect; optimizing the pump body structure design requires high technical requirements and large cost investment. These methods cannot effectively solve the problem of excessive or near-excessive vibration values ​​during pump operation, leading to a shortened service life of components such as mechanical seals and bearings, frequent maintenance, and increased costs. In response to this problem, this application proposes a fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. The bracket has a simple structure, is easy to install, can significantly reduce bearing housing vibration, extend the service life of components, and reduce maintenance costs. Utility Model Content

[0010] To address the shortcomings of existing technologies, this utility model provides a fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. It solves the problems that increasing the size of the pump foundation will increase the equipment's footprint and cost, that rubber vibration damping pads are prone to aging after long-term use and their vibration damping effect will decrease, that optimizing the pump body structure design requires high technical requirements and large investment, and that leads to a shortened service life of components such as mechanical seals and bearings, frequent maintenance, and increased costs.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] A fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump includes a steel plate one. The upper surface of the steel plate one is provided with a steel plate two for forming the main structure of the bracket. The lower surface of the steel plate two is fixedly connected to two support legs for supporting the entire bracket. The surfaces of the two support legs are provided with set screws for fixing the bracket up and down and adjusting it left and right. Nuts are provided on the opposite sides of the two support legs. The two nuts are threadedly connected to the two set screws respectively.

[0013] Preferably, the second steel plate has two openings on its surface, and the thickness of the first steel plate and the second steel plate is 20mm.

[0014] Preferably, both set screws are M16×90 and both openings are 18mm in diameter.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] During the operation of a centrifugal pump, the support bracket, with its own structural strength and stable connection, constrains the vibration displacement of the bearing housing. By distributing the vibration to the entire support bracket and pump base, and utilizing the rigid connection between the support bracket and pump base, the vibration amplitude of the bearing housing is reduced, effectively suppressing vibration, improving operational stability, reducing the impact and wear of vibration on key components such as mechanical seals and bearings, effectively extending the service life of these components, and reducing the frequency of component replacement. Attached Figure Description

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] Figure 1 This is a front view of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the overall structure of this utility model;

[0020] Figure 3 This is a side view of the overall structure of this utility model.

[0021] Illustration: 1. Steel plate one; 2. Steel plate two; 3. Nut; 4. Support leg; 5. Set screw; 6. Opening. Detailed Implementation

[0022] This application provides a fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. It effectively solves the problems of increasing the equipment footprint and cost by increasing the size of the pump foundation, the easy aging of rubber vibration damping pads after long-term use and the decline in vibration damping effect, and the high technical requirements and cost of optimizing the pump body structure design, which leads to the shortened service life of mechanical seals, bearings and other components, frequent maintenance and increased costs. The proposed fixed bracket can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. The bracket has a simple structure and is easy to install. It can significantly reduce the vibration of the bearing housing, extend the service life of components and reduce maintenance costs.

[0023] Example

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the technical solution in this application embodiment effectively solves the technical problems that increasing the size of the pump body foundation will increase the equipment's footprint and cost, that rubber vibration damping pads are prone to aging after long-term use and their vibration damping effect will decrease, that optimizing the pump body structural design requires high technical requirements and large costs, and that this leads to a shortened service life of components such as mechanical seals and bearings, frequent maintenance, and increased costs. The overall approach is as follows:

[0025] To address the problems existing in the prior art, this utility model provides a fixed bracket that can effectively reduce the vibration of the bearing housing of a cantilever centrifugal pump. The bracket includes a steel plate 1, with a steel plate 2 forming the main structure of the bracket on its upper surface. Two support legs 4 are fixedly connected to the lower surface of the steel plate 2 to support the entire bracket. Each support leg 4 has a set screw 5 for vertical fixation and horizontal adjustment. Nuts 3 are located on the opposite sides of each support leg 4, and these nuts are threaded onto the set screws 5. The upper part of the fixed bracket is connected to the cantilever centrifugal pump bearing housing via bolts passing through openings 6 in the steel plate 2, achieving a stable connection. The lower part is supported on the pump base by the set screws 5 on the support legs 4. Rotating the set screws 5 tightens them against the pump base, completing the vertical fixation of the bracket. Horizontal fixation relies on the set screws 5 supporting the sides of the pump base. The bracket's position is precisely adjusted by fine-tuning the set screws 5 on both sides.

[0026] Two openings 6 are formed on the surface of steel plate 2. The thickness of steel plate 1 and steel plate 2 is 20mm. The two set screws 5 are both M16×90. The diameter of the two openings 6 is 18mm. During the operation of the centrifugal pump, the bracket, with its own structural strength and stable connection, constrains the vibration displacement of the bearing box. By distributing the vibration to the entire bracket and pump base, and utilizing the rigid connection between the bracket and the pump base, the vibration amplitude of the bearing box is reduced, effectively suppressing the vibration, improving operational stability, reducing the impact and wear of vibration on key components such as mechanical seals and bearings, effectively extending the service life of these components, and reducing the frequency of component replacement.

[0027] Working principle:

[0028] The upper part of the fixed bracket is connected to the bearing housing of the cantilever centrifugal pump by passing the original bracket connecting bolts through the opening 6 on the steel plate 2, thus achieving a stable connection with the bearing housing. The lower part is supported on the pump base by the set screw 5 on the support leg 4. Rotating the set screw 5 makes it press against the pump base, thus completing the vertical fixation of the bracket. In the left and right directions, the set screw 5 is supported on the side of the pump base. The position of the bracket is finely adjusted by adjusting the set screw 5 on both sides to achieve precise positioning. During the operation of the centrifugal pump, the bracket, with its own structural strength and stable connection, constrains the vibration displacement of the bearing housing. By distributing the vibration to the entire bracket and the pump base, the rigid connection between the bracket and the pump base reduces the vibration amplitude of the bearing housing, effectively suppressing vibration, improving operational stability, reducing the impact and wear of vibration on key components such as mechanical seals and bearings, effectively extending the service life of these components, and reducing the frequency of component replacement.

[0029] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A fixed support capable of effectively reducing the vibration of a bearing housing of a cantilever centrifugal pump, comprising a steel plate (1), characterized in that, The upper surface of the first steel plate (1) is provided with a second steel plate (2) for forming the main structure of the support, and the lower surface of the second steel plate (2) is fixedly connected with two support legs (4) for supporting the entire support; Among them, the surfaces of the two support legs (4) are provided with set screws (5) for fixing the bracket up and down and adjusting it left and right, and the back sides of the two support legs (4) are provided with nuts (3).

2. The fixed support capable of effectively reducing the vibration of the bearing box of a cantilever centrifugal pump according to claim 1, characterized in that: The two nuts (3) are threaded into the two set screws (5) respectively.

3. The fixed support capable of effectively reducing the vibration of the bearing housing of a cantilever centrifugal pump according to claim 1, characterized in that: The steel plate (2) has two openings (6) on its surface.

4. The fixed support for effectively reducing the vibration of the bearing housing of a cantilever centrifugal pump according to claim 1, characterized in that: The thickness of steel plate one (1) and steel plate two (2) is 20 mm.

5. The fixed support for effectively reducing the vibration of the bearing housing of a cantilever centrifugal pump according to claim 1, characterized in that: Both set screws (5) are of specification M16×90.

6. The fixed support capable of effectively reducing the vibration of the bearing housing of a cantilever centrifugal pump according to claim 3, characterized in that: Both of the openings (6) have a diameter of 18 mm.

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