A water pump support that isolates vibration

Abstract

The utility model provides a kind of water pump support of vibration isolation, including, support main body;The upper portion of support main body is provided with bearing platform, for carrying water pump;Bearing platform is provided with vibration isolation component between the water pump, vibration isolation component includes first shock pad and second shock pad, the end face of first shock pad is uniformly provided with multiple vibration resistance blocks of semicircle, the end face of second shock pad is provided with the recess of corresponding vibration resistance block shape, vibration isolation component further includes the fixed screw rod that passes through first shock pad and second shock pad, second shock pad is fixedly connected with water pump.The utility model is by setting vibration isolation component (first, second shock pad) passive vibration isolation of foundation, absorbs high-frequency vibration;While innovatively introduced by stiffness adjusting assembly and nitrogen gas spring the variable stiffness support system of shape.The nitrogen gas spring provides main support and elasticity, and stiffness adjusting assembly can change the precompression of nitrogen gas spring, to dynamically adjust the stiffness of entire support system.

Description

Technical Field

[0001] This utility model relates to the field of water pump brackets, specifically a water pump bracket for isolating vibration. Background Technology

[0002] With the development of modern industry and living standards, water pumps, as core equipment for fluid transportation, are widely used in air conditioning, HVAC, water supply and drainage, and other fields. However, during operation, especially under high speed and high load conditions, the internal rotating parts and fluid pulsation of water pumps generate strong vibrations. These vibrations are not only transmitted to the equipment body and building structure through the support structure, producing annoying noise and affecting the user experience, but also accelerate the wear and fatigue of the water pump itself and surrounding pipes and connections, shortening the service life of the equipment.

[0003] To address the aforementioned issues, existing pump vibration isolation technologies primarily employ passive vibration reduction schemes. These schemes typically involve installing passive components such as elastic damping pads, rubber blocks, or spring dampers between the pump and the stationary structure.

[0004] However, traditional passive vibration damping technology has significant limitations. Passive vibration damping systems can typically only effectively isolate one or a few specific vibration frequencies. When changes in the pump's operating conditions (such as changes in speed, load, or fluid characteristics) cause the vibration frequency to deviate from the design point, the damping effect will decrease significantly, and resonance may even occur, exacerbating the vibration. Different sizes and stiffnesses of vibration damping pads need to be designed and manufactured for different pump models and power ratings, resulting in poor versatility and high inventory and manufacturing costs.

[0005] To overcome these technical shortcomings, there is an urgent need in the field for a vibration isolation solution that can dynamically adjust and adapt to different working conditions, so as to provide efficient and reliable vibration reduction effects over a wider range of vibration frequencies. Utility Model Content

[0006] The purpose of this utility model is to provide a water pump bracket that isolates vibration, aiming to solve the problems of poor frequency adaptability, unstable vibration reduction effect and weak versatility of the passive vibration reduction device in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A vibration-isolation water pump bracket includes: Support body; The upper part of the support body is provided with a bearing platform for supporting the water pump; a vibration isolation component is provided between the bearing platform and the water pump. The vibration isolation component includes a first vibration damping pad and a second vibration damping pad. The end face of the first vibration damping pad is provided with a plurality of semi-circular vibration damping blocks. The end face of the second vibration damping pad is provided with a groove corresponding to the shape of the vibration damping blocks. The vibration isolation component also includes a fixing screw that passes through the first vibration damping pad and the second vibration damping pad. The second vibration damping pad is fixedly connected to the water pump. The support body is also provided with a stiffness adjustment component, which includes a drive worm gear, two worm wheels meshing on both sides of the drive worm gear, an adjustment rod fixedly connected to the worm wheels, an abutment portion fixedly connected to one end of the adjustment rod, the abutment portion extending radially along the adjustment rod, and the stiffness adjustment component also includes a sliding table slidably disposed on the support body, the abutment portion abutting against one end of the sliding table; A nitrogen spring is installed between the sliding table and the water pump.

[0008] As a further optimization of this utility model, a drive motor is provided on the main body of the bracket, and the output end of the drive motor is fixedly connected to the drive worm gear.

[0009] As a further optimization of this utility model, a vibration sensor is provided on the sliding platform, and the vibration sensor is electrically connected to the drive motor.

[0010] As a further optimization of this utility model, a vibration damping block is provided between the nitrogen spring and the water pump.

[0011] As a further optimization of this utility model, the sliding table is slidably mounted on the support body via a slide rail.

[0012] Compared with the prior art, the present invention has the following significant advantages: 1. Combining static and dynamic vibrations for excellent vibration reduction: This invention achieves passive vibration isolation of the foundation by setting vibration isolation components (first and second vibration damping pads) to absorb high-frequency vibrations. Simultaneously, it innovatively introduces a stiffness adjustment component and a nitrogen spring. The nitrogen spring provides the main support and elasticity, while the stiffness adjustment component can change the pre-compression of the nitrogen spring, thereby dynamically adjusting the stiffness of the entire support system. This keeps the system's natural frequency away from the real-time operating frequency of the water pump, avoiding resonance and achieving highly efficient active vibration isolation.

[0013] 2. Wide applicability and strong versatility: Because the support stiffness of this utility model is adjustable, it can adapt to water pumps of different models, speeds, and loads, eliminating the need to customize vibration dampers for each working condition. This greatly improves the versatility of the bracket and reduces production and inventory costs.

[0014] 3. Stable and reliable structure: The vibration damping blocks and grooves in the vibration isolation assembly mesh with each other, enhancing the stability of the connection and preventing relative slippage in the horizontal direction. The stiffness adjustment assembly adopts worm gear transmission, which features smooth transmission and good self-locking, ensuring the accuracy of the adjustment process and the stability of the position after adjustment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of a vibration isolation component in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: 1. Support body; 2. Load-bearing platform; 3. Vibration isolation components; 31. First vibration damping pad; 32. Second vibration damping pad; 33. Vibration damping block; 34. Groove; 35. Fixing screw; 4. Stiffness adjustment assembly; 41. Drive worm gear; 42. Worm wheel; 43. Adjusting rod; 5. Sliding table; 6. Nitrogen spring; 7. Vibration damping block. Detailed Implementation

[0018] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0019] It will be understood by those skilled in the art that certain well-known structures and their descriptions may be omitted in the accompanying drawings. The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1 As attached Figure 1-2 The pump support shown is a type of vibration isolation system, the core of which is a composite system integrating passive vibration reduction and active stiffness adjustment. The support includes a support body 1 as the basic structure.

[0021] A support platform 2 is located on the upper part of the support body 1, on which the water pump is installed and fixed. To achieve initial vibration isolation, a vibration isolation assembly 3 is installed between the support platform 2 and the water pump. This vibration isolation assembly 3 is composed of a first damping pad 31 and a second damping pad 32 stacked together, typically made of elastic materials such as rubber. Its unique feature is that the contact surface of the first damping pad 31 is designed with multiple semi-circular vibration damping blocks 33, while the corresponding contact surface of the second damping pad 32 has grooves 34 that match the shape and position of these vibration damping blocks 33. This design allows the two damping pads to achieve a gear-like meshing effect when fastened by the fixing screws 35, effectively preventing lateral misalignment under vibration impact and improving the stability and shear resistance of the entire vibration isolation structure. The second damping pad 32 is directly fixedly connected to the base of the water pump.

[0022] The key innovation of this utility model lies in the coordinated operation of the stiffness adjustment component 4 and the nitrogen spring 6.

[0023] A sliding table 5 is provided on the support body 1, which can move horizontally thereon. To ensure smooth and precise movement, preferably, the sliding table 5 is mounted on the support body 1 via a slide rail.

[0024] A nitrogen spring 6 is disposed between the sliding table 5 and the water pump (e.g., one end of which abuts against the side or bottom extension of the water pump, and the other end abuts against the sliding table 5). The nitrogen spring 6, as a variable stiffness elastic element, has a force and stiffness closely related to its compression stroke. By changing its pre-compression, its support stiffness for the water pump can be altered.

[0025] To control the pre-compression of the nitrogen spring 6, this invention incorporates a sophisticated stiffness adjustment assembly 4. The core of this assembly is a drive worm gear 41. Two worm wheels 42 mesh simultaneously on both sides of the drive worm gear 41. This design allows the driving force to be transmitted smoothly and symmetrically. An adjusting rod 43 is coaxially fixedly connected to each worm wheel 42. An abutment portion is fixedly connected to the end of the adjusting rod 43, extending radially (i.e., eccentrically) along the adjusting rod 43. The abutment portions of both adjusting rods 43 abut against one end of the sliding table 5.

[0026] The working principle is as follows: When the drive worm 41 rotates, it drives the two worm wheels 42 to rotate in opposite directions, thereby causing the two adjusting rods 43 to rotate synchronously. For example, when the adjusting rod 43 rotates from the lowest position of the contact point to the highest position, it pushes the sliding table 5 away from the slide rail through the contact point, thereby increasing the compression of the nitrogen spring 6. Conversely, it decreases the compression. Because the worm gear mechanism has a self-locking characteristic, once adjusted to the correct position, the sliding table 5 can stably remain in the current position even without continuous power input.

[0027] To achieve automated and intelligent adjustment, in a preferred embodiment of this invention, the drive worm gear 41 is connected to the output end of a drive motor via a coupling. Simultaneously, a vibration sensor is installed on the sliding table 5 (or on the support body 1 near the water pump). This vibration sensor is electrically connected to the controller of the drive motor, forming a closed-loop feedback system.

[0028] In actual operation, the vibration generated by the water pump is monitored in real time by vibration sensors. The sensors transmit vibration signals (such as vibration frequency and amplitude) to the controller. The controller has a preset algorithm that, when the vibration amplitude exceeds a threshold or the vibration frequency approaches the current system's resonant frequency, issues a command to drive the motor to start and rotate a specific angle. The motor's rotation precisely moves the sliding table 5, thereby changing the compression of the nitrogen spring 6 and dynamically adjusting the stiffness of the entire support system. This change in system stiffness alters its natural frequency, thus actively avoiding the water pump's excitation frequency and achieving the effect of suppressing resonance and minimizing vibration transmission.

[0029] In addition, to further enhance the buffering effect and energy dissipation, an additional vibration damping block 7 can be set between the nitrogen spring 6 and the water pump. This vibration damping block 7 can be made of high damping material to absorb impact energy and make the adjustment process smoother.

[0030] In summary, this invention combines a passive vibration damping pad with an actively adjustable nitrogen spring 6, and is supplemented by an intelligent feedback control system, to successfully construct a high-efficiency water pump vibration isolation bracket that can adapt to changes in operating conditions, effectively solving the inherent defects of traditional technologies.

[0031] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water pump bracket for isolating vibration, characterized in that, include, Support body; The upper part of the support body is provided with a bearing platform for supporting the water pump; a vibration isolation component is provided between the bearing platform and the water pump. The vibration isolation component includes a first vibration damping pad and a second vibration damping pad. The end face of the first vibration damping pad is provided with a plurality of semi-circular vibration damping blocks. The end face of the second vibration damping pad is provided with a groove corresponding to the shape of the vibration damping blocks. The vibration isolation component also includes a fixing screw that passes through the first vibration damping pad and the second vibration damping pad. The second vibration damping pad is fixedly connected to the water pump. The support body is also provided with a stiffness adjustment component, which includes a drive worm gear, two worm wheels meshing on both sides of the drive worm gear, an adjustment rod fixedly connected to the worm wheels, an abutment portion fixedly connected to one end of the adjustment rod, the abutment portion extending radially along the adjustment rod, and the stiffness adjustment component also includes a sliding table slidably disposed on the support body, the abutment portion abutting against one end of the sliding table; A nitrogen spring is installed between the sliding table and the water pump.

2. The water pump support for isolating vibration according to claim 1, characterized in that, The support body is equipped with a drive motor, and the output end of the drive motor is fixedly connected to the drive worm gear.

3. A vibration-isolated water pump bracket according to claim 2, characterized in that, A vibration sensor is installed on the sliding platform, and the vibration sensor is electrically connected to the drive motor.

4. A vibration-isolated water pump bracket according to claim 1, characterized in that, A vibration damping block is provided between the nitrogen spring and the water pump.

5. A vibration-isolated water pump bracket according to claim 1, characterized in that, The sliding platform is slidably mounted on the support body via a slide rail.

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