Horizontal centrifugal pump

Abstract

The utility model discloses a horizontal centrifugal pump relates to centrifugal pump technical field, horizontal centrifugal pump includes pump body and pump foot, pump body includes main part and four support platform that extends along the four corners of main part, main part is equipped with the assembly part that is used for being connected with pump cover, the assembly part is located main shaft centre line, and the main shaft centre line is equipped with the pump foot. The four supporting tables and the assembling part are located on the same plane, and the pump foot comprises four fixing bases. According to the technical scheme, the four supporting tables extending along the four corners of the main body part are arranged on the main body part of the pump body, and the four supporting tables and the assembling part on the main body part are arranged on the same plane, so that mold repairing is facilitated; the assembling part is located on the center line of the main shaft, and the four supporting tables are also located on the center line of the main shaft. When the four fixing bases of the pump foot are connected with the four supporting tables through the fasteners, the fasteners are not prone to being blocked by the assembling parts or scratched by the corners of the pump body when being manually tightened, and the installation difficulty between the pump body and the pump foot is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pumps, and particularly relates to a horizontal centrifugal pump. Background Art

[0002] Centrifugal pumps are commonly used to transport materials and make the output materials have a certain pressure. Among them, a horizontal centrifugal pump includes a pump cover, a pump body, and pump feet. The pump body is installed on the pump feet, and the pump cover and the pump body are axially centerline-sectioned and combined into a pump casing. Among them, a main shaft is axially arranged at the center of the pump casing.

[0003] Most of the existing horizontal centrifugal pumps design the support surface between the pump body and the pump feet below the center line of the main shaft. This results in a small support area between the pump body and the pump feet when manually installing the pump body and the pump feet together, and it is easy to be scratched and blocked by the corners of the pump body, making the installation between the pump body and the pump feet difficult and the mold repair difficult. Summary of the Utility Model

[0004] The main object of the utility model is to propose a horizontal centrifugal pump, aiming to solve the problems that the existing horizontal centrifugal pumps design the support surface between the pump body and the pump feet below the center line of the centrifugal pump shaft, resulting in difficult installation operation and high mold repair difficulty.

[0005] To achieve the above object, the horizontal centrifugal pump proposed by the utility model includes:

[0006] A pump body, the pump body includes a main body part and four support platforms extending along the four corners of the main body part. The main body part is provided with an assembly part for connecting with the pump cover. The assembly part is located on the center line of the main shaft, and the four support platforms and the assembly part are located on the same plane; and

[0007] Pump feet, the pump feet are connected with the pump body, and the pump feet include four fixing seats. The four fixing seats and the four support platforms are connected by fasteners.

[0008] In an embodiment, the assembly part is arranged on the upper end surface of the main body part close to the pump cover. The four support platforms are arranged at the four corners of the assembly part, and each support platform extends along the length direction of the main body part. The four support platforms and the assembly part are fixedly connected into an integral structure.

[0009] In an embodiment, the support platform is provided with a first fixing hole, the fixing seat is provided with a second fixing hole, and the fastener sequentially penetrates through the first fixing hole and the second fixing hole to connect the support platform and the fixing seat.

[0010] In an embodiment, the bottom of the support platform protrudes relative to the assembly part to form an installation boss for abutting against the fixing seat.

[0011] In one embodiment, the fixing base includes a trapezoidal seat body and a fixing table. The trapezoidal seat body is narrower at the top and wider at the bottom. The fixing table is installed on the end face of the trapezoidal seat body facing the mounting boss, and the fixing table is connected to the mounting boss.

[0012] In one embodiment, the pump feet include a plurality of connecting parts, and the plurality of connecting parts are used to connect two adjacent trapezoidal seat bodies.

[0013] In one embodiment, there is an avoidance space between the connecting part and the assembling part.

[0014] In one embodiment, the plurality of connecting parts and the four fixing bases are fixedly connected into one body to form a fixing tooling.

[0015] In one embodiment, a plurality of spot welding positions are provided on the outer side of the mounting boss or the outer side of the fixing table, and the mounting boss and the fixing table are spot welded and fixed at the spot welding positions.

[0016] In one embodiment, the fastener is a bolt and / or a positioning pin.

[0017] The technical solution of the present utility model is to adopt four support platforms extending along the four corners of the main body of the pump body on the main body part of the pump body. The four support platforms are all on the same plane as the assembling part on the main body part, which is convenient for mold repair; and since the assembling part is located on the main axis center line, the four support platforms are also located on the main axis center line. When connecting the four fixing bases of the pump feet and the four support platforms through fasteners, it is not easy for manual tightening of the fasteners to be blocked by the assembling part, or scratched or blocked by the edges and corners of the pump body, reducing the installation difficulty between the pump body and the pump feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0019] Figure 1 It is a schematic structural diagram of an embodiment of a horizontal centrifugal pump provided by the present utility model;

[0020] Figure 2 It is an exploded structural diagram of an embodiment of a horizontal centrifugal pump provided by the present utility model;

[0021] Figure 3 It is a side view of an embodiment of a horizontal centrifugal pump provided by the present utility model;

[0022] Figure 4 The bottom view of an embodiment of the pump body provided by the present utility model.

[0023] Explanation of the reference numerals in the drawings:

[0024] 100, horizontal centrifugal pump;

[0025] 10, pump body; 11, main body part; 110, assembly part; 12, support platform; 120, mounting boss; 121, first fixing hole;

[0026] 20, pump foot; 21, fixing seat; 210, trapezoidal seat body; 211, fixing platform; 212, second fixing hole; 213, connecting part; 214, avoidance space;

[0027] A, main shaft center line.

[0028] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions such as "first" and "second" in the embodiments of the present utility model, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0032] Most of the existing horizontal centrifugal pumps 100 design the support surface between the pump body 10 and the pump feet 20 below the center line A of the main shaft. This results in a small support area between the pump body 10 and the pump feet 20 when manually installing the pump body 10 and the pump feet 20 together, and it is easy to be scratched and blocked by the corners of the pump body 10, making the installation difficulty between the pump body 10 and the pump feet 20 large, and the mold repair difficulty is also high.

[0033] The present utility model provides a horizontal centrifugal pump 100. Please refer to Figures 1 to 3 , in an embodiment of the present utility model, the horizontal centrifugal pump 100 provided by the present utility model includes:

[0034] A pump body 10, the pump body 10 includes a main body portion 11 and four support platforms 12 extending along the four corners of the main body portion 11. The main body portion 11 is provided with an assembly portion 110 for connecting with a pump cover. The assembly portion 110 is located on the center line A of the main shaft, and the four support platforms 12 and the assembly portion 110 are located on the same plane; and

[0035] Pump feet 20, the pump feet 20 are connected to the pump body 10. The pump feet 20 include four fixing seats 21, and the four fixing seats 21 and the four support platforms 12 are connected by fasteners.

[0036] The technical solution of the present utility model is to provide four support platforms 12 extending along the four corners of the main body portion 11 of the pump body 10. The four support platforms 12 and the assembly portion 110 on the main body portion 11 are located on the same plane, which is convenient for mold repair; and since the assembly portion 110 is located on the center line A of the main shaft, the four support platforms 12 are also located on the center line A of the main shaft. When connecting the four fixing seats 21 of the pump feet 20 and the four support platforms 12 by fasteners, it is not easy for manual tightening of the fasteners to be blocked by the assembly portion 110, or scratched and blocked by the corners of the pump body 10, reducing the installation difficulty between the pump body 10 and the pump feet 20.

[0037] In an embodiment, the support platform 12 is provided with a first fixing hole 121, the fixing seat 21 is provided with a second fixing hole 212, and the fastener sequentially passes through the first fixing hole 121 and the second fixing hole 212 to connect the support platform 12 and the fixing seat 21.

[0038] Specific assembly and operation steps: First, fix the pump feet 20 with a fixture, then install the pump body 10 on the pump feet 20, and fix them at several positions outside the installation surface of the pump body 10 and the pump feet 20 by spot welding. Then, machine the open surface in the pump body 10, the first fixing holes 121 and the second fixing holes 212 on the pump body 10 and the pump feet 20. Then, gently tap the weld at the spot welding of the pump body 10 and the pump feet 20 with a copper rod, so that the pump body 10 and the pump feet 20 are separated. Finally, fix the pump body 10 on the pump feet 20 with fasteners, so as to place the pump cover on the pump body 10 subsequently.

[0039] Since the main body portion 11 of the pump body 10 is provided with four support platforms 12 extending along the four corners of the main body portion 11, and the four support platforms 12 and the assembly portion 110 on the main body portion 11 are arranged on the same plane, only the mold needs to be repaired on one plane, effectively reducing the difficulty of mold repair and the mold repair cost. Moreover, the plane of the support platform 12 can be machined to make the appearance of the entire horizontal centrifugal pump 100 more beautiful.

[0040] In an embodiment, the assembly portion 110 is arranged on the upper end surface of the main body portion 11 close to the pump cover, the four support platforms 12 are arranged at the four corners of the assembly portion 110, and each support platform 12 extends along the length direction of the main body portion 11. The four support platforms 12 and the assembly portion 110 are fixedly connected into an integral structure.

[0041] To facilitate the corresponding installation of the fixing seat 21 to the bottom of the support platform 12, please refer to Figure 4 , the bottom of the support platform 12 protrudes relative to the assembly portion 110 to form an installation boss 120 that abuts against the fixing seat 21.

[0042] The installation boss 120 protrudes relative to the assembly portion 110, so as to quickly identify the installation boss 120 and facilitate the corresponding installation of the fixing seat 21 to the bottom of the support platform 12.

[0043] Furthermore, the fixing seat 21 includes a trapezoidal seat body 210 and a fixing table 211. The trapezoidal seat body 210 is narrow at the top and wide at the bottom. The fixing table 211 is installed on the end face of the trapezoidal seat body 210 facing the installation boss 120, and the fixing table 211 is connected to the installation boss 120.

[0044] In an embodiment, the trapezoidal seat body 210 is narrow at the top and wide at the bottom to support the pump body 10 installed on the fixing table 211.

[0045] In order to connect multiple trapezoidal seat bodies 210 of the pump foot 20 together, the pump foot 20 includes multiple connecting parts 213 for connecting two adjacent trapezoidal seat bodies 210.

[0046] In order to prevent the connecting part 213 from blocking the installation of the pump body 10 onto the pump foot 20, there is a clearance space 214 between the connecting part 213 and the assembling part 110.

[0047] In one embodiment, the multiple connecting parts 213 are fixedly connected to the four fixing seats 21 integrally to form a fixing tooling.

[0048] Since the multiple connecting parts 213 are fixedly connected to the four fixing seats 21 integrally to form a fixing tooling, the pump foot 20 supports the pump body 10 more stably, which is more conducive to transferring the force on the entire horizontal centrifugal pump 100 to the base under the pump foot 20, greatly reducing the vibration of the horizontal centrifugal pump 100 and ensuring the stable operation of the horizontal centrifugal pump 100.

[0049] The pump foot 20 can be an integrally formed structure to reduce the number of positioning pins used, effectively avoiding the deformation of the positioning pin holes, which may cause unstable installation of the pump foot 20.

[0050] In one embodiment, multiple spot welding positions are provided on the outer side of the mounting boss 120 or the outer side of the fixing table 211, and the mounting boss 120 and the fixing table 211 are spot welded at the spot welding positions.

[0051] Optionally, the fastener is a bolt and / or a positioning pin.

[0052] In one embodiment, the pump body 10 is fixed to the pump foot 20 using bolts or positioning pins, so as to subsequently place the pump cover on the pump body 10.

[0053] After installing the pump body 10 on the pump feet 20, it is fixed by spot welding at several positions outside the installation surface of the pump body 10 and the pump feet 20. Since the main body 11 of the pump body 10 is provided with four support platforms 12 extending along the four corners of the main body 11, and the four support platforms 12 are all located on the same plane as the assembly part 110 on the main body 11, it is convenient to machine the split surface of the pump body 10, the first fixing holes 121 and the second fixing holes 212 on the pump body 10 and the pump feet 20. Then, gently tap the weld at the spot welding position of the pump body 10 and the pump feet 20 with a copper bar, so that the pump body 10 and the pump feet 20 are separated. Finally, use bolts or positioning pins to fix the pump body 10 on the pump feet 20, so as to place the pump cover on the pump body 10 subsequently. Since the main body 11 of the pump body 10 is provided with four support platforms 12 extending along the four corners of the main body 11, and the four support platforms 12 are all located on the same plane as the assembly part 110 on the main body 11, only the mold needs to be repaired on one plane, effectively reducing the difficulty of mold repair and the mold repair cost. Moreover, the plane of the support platform 12 can be machined to make the appearance of the whole centrifugal pump more beautiful. Among them, the split surface of the pump body 10 is the surface where the assembly part 110 is located.

[0054] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A horizontal centrifugal pump, characterized in that, Comprising: A pump body, the pump body includes a main body portion and four support platforms extending along the four corners of the main body portion. The main body portion is provided with an assembly portion for connecting with a pump cover. The assembly portion is located on the center line of the main shaft, and the four support platforms and the assembly portion are on the same plane; and Pump feet, the pump feet are connected to the pump body. The pump feet include four fixing seats, and the four fixing seats and the four support platforms are connected by fasteners.

2. The horizontal centrifugal pump according to claim 1, characterized in that, The assembly portion is provided on the upper end face of the main body portion close to the pump cover. The four support platforms are provided at the four corners of the assembly portion, and each support platform extends along the length direction of the main body portion. The four support platforms and the assembly portion are fixedly connected into an integral structure.

3. The horizontal centrifugal pump according to claim 2, wherein The support platform is provided with a first fixing hole, the fixing seat is provided with a second fixing hole, and the fastener sequentially penetrates through the first fixing hole and the second fixing hole to connect the support platform and the fixing seat.

4. The horizontal centrifugal pump according to claim 3, characterized in that, The bottom of the support platform protrudes relative to the assembly portion to form a mounting boss for abutting against the fixing seat.

5. The horizontal centrifugal pump according to claim 4, characterized in that, The fixing seat includes a trapezoidal seat body and a fixing table. The trapezoidal seat body is narrow at the top and wide at the bottom. The fixing table is installed on the end face of the trapezoidal seat body facing the mounting boss, and the fixing table is connected to the mounting boss.

6. The horizontal centrifugal pump according to claim 5, characterized in that, The pump feet include a plurality of connecting portions, and the plurality of connecting portions are used for connecting two adjacent trapezoidal seat bodies.

7. The horizontal centrifugal pump according to claim 6, characterized in that, There is an avoidance space between the connecting portion and the assembly portion.

8. The horizontal centrifugal pump according to claim 6, characterized in that, The plurality of connecting portions and the four fixing seats are fixedly connected into an integral body to form a fixing tooling.

9. The horizontal centrifugal pump according to claim 5, characterized in that, A plurality of spot welding positions are provided on the outer side of the mounting boss or the outer side of the fixing table, and the mounting boss and the fixing table are spot welded and fixed at the spot welding positions.

10. The horizontal centrifugal pump according to any one of claims 1 to 9, characterized in that, The fastener is a bolt and / or a positioning pin.

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