A base plate structure for a permanent magnet direct drive pump

Abstract

This utility model discloses a base plate structure for a permanent magnet direct drive pump, including a base plate, several fixing holes at the edge of the base plate, a set of load-bearing plates extending through the base plate along its length, several sets of threaded holes for connecting the permanent magnet direct drive pump on the load-bearing plates, a connecting plate between the load-bearing plates, a positioning boss on the connecting plate, and a foolproof hole on one side of the positioning boss. This utility model includes a base plate, load-bearing plates, connecting plates, and positioning bosses. The fixed position is adjusted via elongated holes, and precise positioning and mis-installation are achieved using the positioning bosses and foolproof holes. Simultaneously, the integrated load-bearing plate and reinforcing blocks enhance the overall strength, effectively solving the problems of insufficient load-bearing capacity, low installation accuracy, and difficult adjustment of traditional base plates. It has the advantages of structural stability, convenient installation, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet direct drive pumps, and in particular to a base plate structure for permanent magnet direct drive pumps. Background Technology

[0002] As a highly efficient and energy-saving fluid transport device, the permanent magnet direct-drive pump uses a permanent magnet coupling for power transmission in its core component, offering advantages such as zero leakage and maintenance-free operation. During installation, the pump body's levelness and positional accuracy directly affect the equipment's operational stability and service life.

[0003] Traditional installation methods have the following problems:

[0004] 1) Existing base plate structures are mostly simple flat plate designs, lacking specialized load-bearing and positioning structures, making it difficult to make fine adjustments after the pump body is installed.

[0005] 2) The fixed holes are single and non-adjustable, which cannot adapt to the needs of different installation environments, and lacks an effective anti-misinstallation design, which can easily lead to incorrect installation direction.

[0006] These problems not only increase installation difficulty but may also lead to adverse consequences such as increased pump body vibration and accelerated bearing wear. Furthermore, the existing base plate structure is insufficient in load-bearing capacity and is prone to deformation after long-term use, affecting the pump's operational accuracy.

[0007] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0008] The purpose of this invention is to provide a base plate structure for a permanent magnet direct drive pump, which has the advantages of improving installation accuracy, facilitating position adjustment, preventing incorrect installation, and enhancing the load-bearing capacity of the structure.

[0009] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0010] A base plate structure for a permanent magnet direct drive pump includes a base plate, a plurality of fixing holes at the edge of the base plate, a set of load-bearing plates through the base plate along its length, a plurality of threaded holes for connecting the permanent magnet direct drive pump on the load-bearing plates, a connecting plate between the load-bearing plates, a positioning boss on the connecting plate, and a foolproof hole on one side of the positioning boss.

[0011] Furthermore, the fixing hole is an elongated oval hole, which is used to adjust the fixing position of the substrate.

[0012] Furthermore, the load-bearing plate and the base plate are connected by an integrated structure.

[0013] Furthermore, two sets of threaded holes are symmetrically arranged on the load-bearing plate.

[0014] Furthermore, the positioning boss is used to cooperate with the positioning groove at the bottom of the permanent magnet direct drive pump to achieve pre-installation.

[0015] Furthermore, a structural reinforcing block is provided between the outer side of the load-bearing plate and the edge of the substrate.

[0016] In summary, this utility model has the following beneficial effects:

[0017] The structure includes a base plate, a load-bearing plate, a connecting plate, and a positioning boss. The position is adjusted and fixed through an elongated hole. The positioning boss and anti-misalignment hole are used to achieve precise positioning and prevent incorrect installation. At the same time, the integrated load-bearing plate and reinforcing block improve the overall strength. It effectively solves the problems of insufficient load-bearing capacity, low installation accuracy, and difficulty in adjustment of traditional base plates. It has the advantages of stable structure, convenient installation, and strong adaptability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the base plate structure for the permanent magnet direct drive pump described in this utility model.

[0019] Figure 2 This is a bottom view of the base plate structure for the permanent magnet direct drive pump described in this utility model. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with the illustrations and specific embodiments.

[0021] In existing technologies, magnetic pumps are typically installed using an integral base. Because the pump body and base form a rigid unit, frequent adjustments to the horizontal position are required during equipment alignment. Traditional bases lack adjustable mechanisms, necessitating repeated disassembly and reassembly of fasteners for fine-tuning, resulting in low installation efficiency. Furthermore, when the pump body is heavy, manual handling and adjustment pose safety hazards, and repeated disassembly and reassembly can cause wear on the threaded holes, affecting positioning accuracy.

[0022] like Figure 1 and Figure 2 As shown, the base plate structure of the permanent magnet direct drive pump proposed in this utility model includes a base plate 1, a plurality of fixing holes 2 are provided at the edge of the base plate 1, a set of load-bearing plates 3 are provided through the base plate 1 in the length direction, a plurality of threaded holes 4 for connecting the permanent magnet direct drive pump are provided on the load-bearing plates 3, a connecting plate 5 is provided between the load-bearing plates 3, a positioning boss 6 is provided on the connecting plate 5, and a foolproof hole 7 is provided on one side of the positioning boss 6.

[0023] The components are as follows: Base plate 1 refers to the flat plate component that bears the weight of the pump body. It can be made of Q235 steel plate with a thickness of 10-20mm, serving as the mounting reference surface for the entire base plate structure. Fixing holes 2 are mounting holes distributed along the edge of base plate 1. They can be elongated holes, allowing for horizontal position adjustment via bolts. Load-bearing plate 3 is a longitudinal reinforcing member extending along the length of base plate 1, forming an integral structure with base plate 1 through welding or casting. Threaded holes 4 are fastening holes on load-bearing plate 3, specifically M12-M20 threaded holes, symmetrically distributed on both sides of load-bearing plate 3 to form a double-point fixing structure. Connecting plate 5 is a reinforcing member that horizontally connects the two load-bearing plates 3. It can be made of steel plate with a thickness of 8-15mm and welded perpendicularly to the load-bearing plates 3 to form a grid-like support structure. Positioning boss 6 is a protruding structure on the surface of connecting plate 5, specifically a rectangular boss with a height of 5-8mm, forming a clearance fit with the positioning groove at the bottom of the pump body. The anti-fool hole 7 refers to the asymmetrical hole located on the side of the positioning boss 6. Specifically, it can be achieved by using a through hole with a diameter of 6-10mm. The installation direction of the pump body is forcibly limited by the offset of the hole position.

[0024] Specifically, the base plate 1 is connected to the external support surface through an elongated hole at its edge, allowing for sliding adjustment along its length during installation. The load-bearing plate 3 and the base plate 1 form a longitudinal rigid beam structure, with threaded holes 4 symmetrically distributed on both sides of the load-bearing plate 3, creating a dual-point fixing mechanism. Connecting plates 5 are laterally positioned between the load-bearing plates 3, forming a closed grid frame structure. The positioning boss 6 engages with the bottom groove during pump body installation for initial positioning. The anti-fooling hole 7, through its offset design, ensures that the pump body can only be installed in the correct direction, preventing misalignment of the sealing surface.

[0025] Through the above technical solution, this application achieves stepless position adjustment during the installation of the magnetic pump, allowing operators to complete horizontal adjustments without disassembling fasteners. The positioning boss 6 and the anti-foolproof hole 7 work together to ensure correct installation direction, reducing rework. The three-dimensional support structure formed by the load-bearing plate 3 and the connecting plate 5 effectively suppresses vibration deformation and extends the service life of the equipment. The double-row threaded hole 4 design ensures even load distribution on the pump body, preventing connection failure caused by excessive local stress.

[0026] Example 1

[0027] This application further proposes that the fixing hole 2 is an elongated hole, which is used to adjust the fixing position of the substrate 1.

[0028] The oblong hole refers to a hole structure with semi-circular ends and two parallel straight line segments connecting the middle, which can be achieved by machining or stamping. This hole extends along the length of the substrate 1, allowing the fixing bolt to move linearly within the hole.

[0029] Specifically, during the installation of the magnetic pump, when it is necessary to adjust the relative position of the base plate 1 and the external support structure, the fixing bolts can be moved within the length range of the elongated hole. The operator does not need to completely disassemble the bolts; simply loosening the fasteners and pushing the base plate 1 allows for horizontal adjustment. For example, when there is a horizontal deviation between the magnetic pump axis and the drive device, the base plate 1 can be moved along the elongated hole until alignment is complete, after which the bolts can be tightened.

[0030] Through the above technical solution, this application achieves adjustable mounting position of substrate 1, reducing the difficulty of magnetic pump alignment. Operators can perform fine-tuning of the position without disassembling the fixing parts, effectively reducing the number of installation adjustments and improving equipment assembly efficiency and alignment accuracy.

[0031] Example 2

[0032] This application further proposes that the load-bearing plate 3 and the base plate 1 are connected by an integrated structure.

[0033] The integrated structural connection refers to the load-bearing plate 3 and the base plate 1 being formed from the same piece of material through integral processing. Specifically, this can be achieved using casting or integral cutting forming processes. This structure eliminates the seams of the separate assembly, allowing the load-bearing plate 3 and the base plate 1 to form a continuous, integral load-bearing surface.

[0034] Specifically, during the installation of the magnetic pump, the integrated connection between the load-bearing plate 3 and the base plate 1 avoids the assembly gaps caused by bolt fixing or welding in traditional split structures. When bearing the pump body load, the stress distribution of the integrated structure is more uniform, and local stress concentration will not form at the connection. When the operator adjusts the magnetic pump horizontally, there is no relative displacement between the base plate 1 and the load-bearing plate 3, providing a stable reference plane for the adjustment operation.

[0035] Through the above technical solution, this application solves the problem of inaccurate adjustment benchmark caused by local deformation of the base during the installation of a magnetic pump. The integrated structure ensures that the base plate maintains a stable shape during adjustment operations, allowing operators to directly perform horizontal calibration without additional reinforcement, thus reducing the number of repeated adjustments caused by structural deformation.

[0036] Example 3

[0037] This application further proposes to symmetrically arrange two sets of threaded holes 4 on the load-bearing plate 3.

[0038] The two sets of symmetrically arranged threaded holes 4 refer to the groups of holes arranged in a mirror image on both sides of the load-bearing plate 3 along its length. Specifically, this can be achieved by equidistantly distributing the holes along the central axis of the load-bearing plate 3. This arrangement ensures a symmetrical constraint relationship between the points of application of the fastening force during pump installation. The threaded holes 4 are through holes with internal threads used to accommodate fastening bolts. They can be machined using standard thread specifications, and the mechanical connection between the pump body and the base plate is achieved through thread engagement.

[0039] Specifically, when installing the permanent magnet direct-drive pump, the operator aligns the mounting holes at the bottom of the pump body with the two sets of symmetrically distributed threaded holes 4, and simultaneously screws in the bolts on both sides to achieve bidirectional fixation. Because the threaded holes 4 are symmetrically distributed on both sides of the load-bearing plate 3, the load generated by the weight of the pump body is evenly transferred to both ends of the load-bearing plate 3, preventing excessive shear force from being borne by any single threaded hole 4. When adjusting the pump body's levelness, the operator can alternately adjust the screwing depth of the symmetrically positioned bolts to gradually bring the pump body to a balanced state under bidirectional constraints, completing the alignment operation without repeatedly moving the pump body.

[0040] Through the above technical solution, this application effectively solves the problem of stress imbalance caused by the unreasonable distribution of threaded holes 4 during the installation of the magnetic pump, so that the weight of the pump body is evenly distributed on both sides of the load-bearing plate 3, reducing the risk of local stress concentration. The symmetrically distributed set of threaded holes 4 provides operators with a clear adjustment benchmark, and the alignment process is simplified through the coordinated adjustment of symmetrical points, shortening the installation time and reducing the probability of operational errors.

[0041] Example 4

[0042] This application further proposes a positioning boss 6 for pre-installation by engaging with a positioning groove at the bottom of the permanent magnet direct drive pump.

[0043] The positioning boss 6 refers to the raised structure on the connecting plate 5, which can be implemented using a cylindrical or rectangular geometry. Its dimensions form a clearance fit or transition fit with the positioning groove at the bottom of the permanent magnet direct drive pump. This structure actively provides a mechanical constraint reference, restricting the pump body's degrees of freedom during the initial installation phase. The positioning groove refers to the pre-set recessed structure at the bottom of the permanent magnet direct drive pump, which can be implemented using a geometric shape complementary to the positioning boss 6, such as a circular or square groove. This structure passively accepts the insertion of the positioning boss 6, forming a physical guiding relationship for spatial alignment.

[0044] Specifically, during installation, the operator initially engages the positioning groove on the bottom of the permanent magnet direct drive pump with the positioning boss 6. At this point, the geometric matching characteristics of the boss and the groove create a lateral constraint, preventing the pump body from shifting horizontally. Simultaneously, the height of the boss and the depth of the groove form a vertical limit, ensuring the pump body maintains a stable posture under gravity. Through this mechanical fit, the pump body and the base plate 1 are pre-positioned before threaded fastening, providing an accurate alignment reference for subsequent bolt connections and eliminating adjustment difficulties caused by the equipment's own weight.

[0045] Compared to existing technologies, traditional magnetic pumps require repeated manual adjustments to the relative positions of the pump body and the base during installation, a time-consuming process that is difficult to guarantee accuracy. This solution, however, utilizes a physical fit between a boss and a groove to establish spatial constraints during the pre-installation stage, simplifying the positioning process, which previously required multiple adjustments, into a single mechanical engagement action.

[0046] Through the above technical solution, this application solves the problem of insufficient installation positioning accuracy caused by the large overall weight of permanent magnet direct drive pumps, enabling the pump body to be quickly pre-positioned during the pre-installation stage, reducing manual adjustment time, and ensuring the alignment accuracy during subsequent thread tightening.

[0047] Example 5

[0048] This application further proposes to provide a structural reinforcing block 8 between the outer side of the load-bearing plate 3 and the edge of the substrate 1.

[0049] The structural reinforcing block 8 refers to the reinforcing component located in the area where the outer side of the load-bearing plate 3 connects to the edge of the base plate 1. Specifically, it can be implemented using a triangular or trapezoidal block structure, and its material is consistent with that of the base plate 1. This structure is integrally connected to the load-bearing plate 3 and the base plate 1 by welding or casting, and is used to enhance the bending stiffness and torsional resistance between the load-bearing plate 3 and the base plate 1.

[0050] Specifically, the structural reinforcement block 8 is placed in the mechanically weak area at the edge of the load-bearing plate 3 and the base plate 1. By increasing the cross-sectional area and connection strength of this area, the longitudinal load generated during the operation of the permanent magnet direct drive pump is distributed to the edge of the base plate 1. During the installation of the magnetic pump, when the weight of the pump body acts on the threaded hole 4 connection point of the load-bearing plate 3, the structural reinforcement block 8 can suppress the bending deformation of the load-bearing plate 3 caused by local stress concentration, while reducing the warping of the edge of the base plate 1 caused by asymmetrical loads. This local reinforcement method avoids the weight increase problem caused by increasing the overall thickness of the base plate 1, allowing the base plate 1 to maintain the geometric positional stability between the load-bearing plate 3 and the base plate 1 while maintaining a lightweight design, providing a rigid support foundation for subsequent alignment and adjustment.

[0051] Compared with existing technologies, traditional magnetic pump base plates typically rely solely on the planar connection between the base plate 1 and the load-bearing plate 3. During pump installation, insufficient rigidity in the connection area can easily lead to deformation of the base plate 1, requiring repeated adjustments to achieve the required level. In contrast, this application adds a structural reinforcing block 8, directly strengthening the key nodes of the load transmission path without altering the overall thickness of the base plate 1. This ensures that the base plate 1 maintains a uniform support surface morphology when bearing the weight of the pump, significantly reducing the alignment and adjustment time during installation.

[0052] Through the above technical solution, this application solves the problem of poor overall stability caused by insufficient local strength of the base plate during the installation of the magnetic pump, effectively reduces the pump body axis offset caused by the deformation of the base plate 1, avoids sealing failure or abnormal vibration caused by the misalignment of the installation reference surface, and reduces the difficulty for operators to adjust the pump body level.

[0053] In this document, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", and "horizontal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of clarifying the technical solution and for the convenience of description, and therefore should not be construed as limiting the present utility model.

[0054] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A base plate structure for a permanent magnet direct drive pump, characterized by, Includes a substrate (1), with several fixing holes (2) at the edge of the substrate (1), a set of load-bearing plates (3) passing through the substrate (1) along its length, a set of threaded holes (4) for connecting a permanent magnet direct drive pump on the load-bearing plates (3), a connecting plate (5) between the load-bearing plates (3), a positioning boss (6) on the connecting plate (5), and a foolproof hole (7) on one side of the positioning boss (6). The fixing hole (2) is an oblong hole used to adjust the fixing position of the substrate (1); The load-bearing plate (3) and the base plate (1) are connected by an integral structure; The positioning boss (6) is a rectangular boss, which is used to cooperate with the positioning groove at the bottom of the permanent magnet direct drive pump to achieve pre-installation; The anti-fool hole (7) is a through hole offset from the center of the positioning boss (6) and is used to define the installation direction of the permanent magnet direct drive pump.

2. The base plate structure for a permanent magnet direct-drive pump according to claim 1, characterized in that, Two sets of threaded holes (4) are symmetrically arranged on the load-bearing plate (3).

3. The base plate structure for a permanent magnet direct-drive pump according to claim 1, characterized in that, A structural reinforcing block (8) is provided between the outer side of the load-bearing plate (3) and the edge of the base plate (1).

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