Supporting structure of end suction pump suspension

Abstract

A supporting structure of an end suction pump suspension comprises an upper transverse plate (21) and a lower transverse plate (23) which are arranged in parallel, a trapezoidal plate (22) perpendicular to the upper transverse plate (21) and the lower transverse plate (23) is arranged between the upper transverse plate (21) and the lower transverse plate (23), the trapezoidal plate (22) is located on one side of the upper transverse plate (21) and one side of the lower transverse plate (23), two symmetrically-arranged bolt holes (211) are formed in the upper transverse plate (21), and two symmetrically-arranged positioning grooves (231) are formed in the lower transverse plate (23). According to the utility model, the suspension component is stably supported, so that the shaft extension center of the motor and the shaft extension center of the end suction pump set are on the same horizontal plane, the stable operation of the end suction pump set is ensured, and the installation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of installation of an end suction pump, in particular to a support structure of a suspension of an end suction pump. Background Art

[0002] The end suction pump is a widely used centrifugal pump. In the end suction pump, various couplings are used between the pump shaft and the motor shaft to connect the two machines so that they rotate synchronously and transmit a certain torque to make the entire pump unit run. The rotation centers of the two shafts connected by the coupling should be kept strictly coaxial to keep the deviation of the two shafts from being eccentric within a reasonable range. If the pump unit is not centered, the following hazards will be caused: 1. Increased vibration of the machine. 2. Increased wear of the bearings. 3. Increased wear of the seals. 4. Excessive energy consumption. These will affect the operating stability of the entire pump unit. For this reason, a device that stably supports the end suction pump suspension is needed to make the pump unit more stable and less vibrating during operation.

[0003] In the existing support structure of the end suction pump suspension, bolts are used to connect the bearing housing in the horizontal direction. In this way, the bolts are easily deformed or broken under the gravity of the end suction pump, which endangers the operation of the pump unit. If misalignment occurs, the shear stress of the shaft will be too large, causing the shaft to break, thereby affecting the operating stability of the entire pump unit. Utility Model Content

[0004] The utility model aims to provide a support structure of an end suction pump suspension to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve the technical problem is: comprising an upper transverse plate 21 and a lower transverse plate 23 arranged in parallel, a trapezoidal plate 22 arranged perpendicularly to the upper transverse plate 21 and the lower transverse plate 23 is arranged between the upper transverse plate 21 and the lower transverse plate 23, the trapezoidal plate 22 is located on one side of the upper transverse plate 21 and the lower transverse plate 23, the upper transverse plate 21 is provided with two symmetrically arranged bolt holes 211, and the lower transverse plate 23 is provided with two symmetrically arranged positioning grooves 231.

[0006] Preferably, the trapezoidal plate 22 is in the shape of an isosceles trapezoid, the width of the upper transverse plate 21 is equal to the length of the upper bottom surface of the trapezoidal plate 22 , and the width of the lower transverse plate 23 is equal to the length of the lower bottom surface of the trapezoidal plate 22 .

[0007] Preferably, a trapezoidal rib plate 24 arranged perpendicular to the trapezoidal plate 22 is provided in the middle of the trapezoidal plate 22 .

[0008] Preferably, the length of the upper cross plate 21 is one quarter of the height of the supporting structure.

[0009] Preferably, the length of the lower transverse plate 23 is one third of the height of the supporting structure.

[0010] Preferably, the upper transverse plate 21, the trapezoidal plate 22, and the lower transverse plate 23 have the same thickness.

[0011] The beneficial effects of the utility model are as follows: an upper horizontal plate and a lower horizontal plate are respectively arranged at the upper and lower ends of the trapezoidal plate, the upper horizontal plate is connected to the tail plane of the suspension component by bolts, and the lower horizontal plate is connected to the base of the pump unit by bolts, which plays a role of stable support, so that the motor shaft extension center and the pump unit shaft extension center are on the same horizontal plane, ensuring the stable operation of the pump unit. During the operation of the pump unit, the bolts only play a positioning role and do not bear the gravity of the pump body, so that the operation of the pump unit is more stable and the vibration is small, and the bolts are not easy to deform. The length and thickness of the upper horizontal plate, the lower horizontal plate and the trapezoidal plate are reasonably set to optimize the structure and load-bearing capacity of the utility model. The utility model has the advantages of being stable and durable, easy to install, and low in processing and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is the front view of the utility model.

[0014] Figure 3 It is a side view of the utility model.

[0015] Figure 4 It is a top view of the utility model.

[0016] Figure 5 It is an application installation schematic diagram of the utility model.

[0017] Among them: 1-suspension component; 2-support structure; 21-upper horizontal plate; 211-bolt hole; 22-trapezoidal plate; 23-lower horizontal plate; 231-positioning groove; 24-rib plate; 3-base. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "inside", "both sides", "one side", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] See also Figure 1The support structure 2 provided by the utility model includes an upper horizontal plate 21 and a lower horizontal plate 23 arranged in parallel, a trapezoidal plate 22 arranged perpendicularly to the upper horizontal plate 21 and the lower horizontal plate 23 is arranged between the upper horizontal plate 21 and the lower horizontal plate 23, the trapezoidal plate 22 is located on one side of the upper horizontal plate 21 and the lower horizontal plate 23, two symmetrically arranged bolt holes 211 are arranged on the upper horizontal plate 21, and two symmetrically arranged positioning grooves 231 are arranged on the lower horizontal plate 23. Figure 5 The upper cross plate 21 is connected to the rear processing surface of the suspension component 1 by assembling bolts in the bolt holes 211. The upper cross plate 21 fits the rear processing surface of the suspension component 1 to play a supporting role, and the bolts play a connecting and positioning role. The lower cross plate 23 is connected to the pump unit base 3 by assembling bolts in the positioning grooves 231. The lower cross plate 23 fits the upper surface of the base 3 to play a stable supporting role, and the bolts play a connecting and positioning role. Before the bolts are tightened, they can move horizontally in the positioning grooves 231, which is convenient for the installation of the support structure 2. Through the utility model, the motor shaft extension center and the pump unit shaft extension center are on the same horizontal plane, ensuring the stable operation of the pump unit.

[0021] Specifically, the size of the support structure 2 depends on the size of the processing plane at the tail of the suspension component 1. The height H of the support structure 2 is generally related to the center height of the end suction pump. It can be calculated by the formula H = H1-H2 (H1 is the distance from the center of the end suction pump shaft to the base 3, and H2 is the distance from the center of the end suction pump shaft to the processing surface at the tail of the suspension component 1). The thickness of the upper cross plate 21 is generally (10-30) mm, and the thickness of the trapezoidal plate 22 and the lower cross plate 23 should be equal to the thickness of the upper cross plate 21. Such a structure can not only reduce manufacturing costs, simplify process flow, and facilitate maintenance and repair, but also provide a more uniform distribution of structural stiffness, reduce the possibility of structural deformation, distribute load more evenly, reduce the impact of concentrated loads on the support structure 2, and improve the bearing capacity and service life of the support structure 2.

[0022] Further, see Figure 2-Figure 4, the support structure 2 is narrow at the top and wide at the bottom, which improves the bearing capacity and enhances the structural stability. Specifically, the trapezoidal plate 22 is in the shape of an isosceles trapezoid, the width of the upper cross plate 21 is equal to the length of the upper bottom surface of the trapezoidal plate 22, and the width of the lower cross plate 23 is equal to the length of the lower bottom surface of the trapezoidal plate 22. The length of the upper cross plate 21 is one-fourth of the height of the support structure, that is, L1 = (1 / 4) H; the width is three-quarters of the total width of the suspension component 1, that is, B1 = (3 / 4) D. The length of the lower cross plate 23 is one-third of the height of the support structure, that is, L2 = (1 / 3) H; the width is the total width of the suspension component 1, that is, B2 = D. In the above formula: L1 is the length of the upper cross plate 21; H is the height of the support structure 2; B1 is the width of the upper cross plate 21; D is the total width of the suspension component 1; L2 is the length of the lower cross plate 23; B2 is the width of the lower cross plate 23. A structure of this size has a lighter deadweight, which is beneficial to the balance and stability of the supporting structure 2. The smaller upper cross plate 21 can disperse the load more evenly and reduce vibration without reducing the bearing capacity.

[0023] Furthermore, a trapezoidal rib plate 24 is arranged perpendicularly to the trapezoidal plate 22 in the middle of the trapezoidal plate 22, and the rib plate 24 is also perpendicular to the upper transverse plate 21 and the lower transverse plate 23. The length of the upper bottom surface of the rib plate 24 is equal to the length of the upper transverse plate 21, the length of the lower bottom surface of the rib plate 24 is equal to the length of the lower transverse plate 23, the height of the rib plate 24 is equal to the height of the trapezoidal plate 22, and the thickness of the rib plate 24 is equal to the thickness of the upper transverse plate 21. The two bolt holes 211 are symmetrically located on both sides of the rib plate 24, and the two positioning grooves 231 are symmetrically located on both sides of the rib plate 24. The provision of the rib plate 24 strengthens the strength of the support structure 2, prevents deformation of the upper transverse plate 21 and the lower transverse plate 23, and reduces the occurrence of misalignment between the end suction pump and the motor.

[0024] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support structure for an end suction pump suspension, characterized in that: The invention comprises an upper transverse plate (21) and a lower transverse plate (23) which are arranged in parallel, a trapezoidal plate (22) which is arranged perpendicular to the upper transverse plate (21) and the lower transverse plate (23) is arranged between the upper transverse plate (21) and the lower transverse plate (23), the trapezoidal plate (22) is located on one side of the upper transverse plate (21) and the lower transverse plate (23), the upper transverse plate (21) is provided with two symmetrically arranged bolt holes (211), and the lower transverse plate (23) is provided with two symmetrically arranged positioning grooves (231).

2. The support structure of the end suction pump suspension according to claim 1 is characterized in that: The trapezoidal plate (22) is in the shape of an isosceles trapezoid, the width of the upper transverse plate (21) is equal to the length of the upper bottom surface of the trapezoidal plate (22), and the width of the lower transverse plate (23) is equal to the length of the lower bottom surface of the trapezoidal plate (22).

3. The support structure of the end suction pump suspension according to claim 1 is characterized in that: A trapezoidal rib plate (24) is arranged in the middle of the trapezoidal plate (22) and is arranged perpendicular to the trapezoidal plate (22).

4. The support structure of the end suction pump suspension according to claim 1 is characterized in that: The length of the upper transverse plate (21) is one quarter of the height of the supporting structure.

5. The support structure of the end suction pump suspension according to claim 1 is characterized in that: The length of the lower transverse plate (23) is one third of the height of the supporting structure.

6. The support structure of the end suction pump suspension according to claim 1 is characterized by: The upper transverse plate (21), the trapezoidal plate (22) and the lower transverse plate (23) have the same thickness.

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