Vertical multi-stage pump base with long shaft support

Abstract

The utility model discloses a vertical multistage pump base with a long shaft support, which comprises a base shell, a water circulation chamber is arranged in the base shell, the inner side of the bottom end of the water circulation chamber is fixedly connected with the bottom of a copper sleeve mounting frame, a copper sleeve is arranged at the top end of the copper sleeve mounting frame, and the tail part of a long shaft rotor penetrates through a through hole in the top wall of the base shell and extends into the copper sleeve. A first water inlet hole is formed in one end of the base shell, a first water outlet hole is correspondingly formed in the other end of the base shell, the first water inlet hole penetrates through the water circulation chamber and is communicated with the first water outlet hole, a first water circulation hole is formed in one end of the copper sleeve mounting frame, and a second water circulation hole is correspondingly formed in the other end of the copper sleeve mounting frame; and the first water circulation hole penetrates through the inner space of the copper sleeve mounting frame and is connected with the second water circulation hole in a conducting manner. According to the device, the lubricating effect on rotation of the long shaft and the copper sleeve is achieved through water circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage pumps, in particular to a vertical multi-stage pump base with a long axis support. Background Art

[0002] Vertical multistage pumps are mechanical equipment that can transport everything from tap water to industrial liquids. They use standard vertical motors and quick-install mechanical seals, which are very easy to replace. The flow-through parts of the pumps are made of stainless steel and are suitable for mildly corrosive media. Vertical multistage pumps are widely used in our daily lives.

[0003] The working long axis of the multistage pump rotates, and the multistage pump base supports the long axis. However, when the existing multistage pump base supports the long axis, the friction between the long axis and the base is large, which is easy to heat up and affects the use of the equipment. Therefore, in view of the above problem, a vertical multistage pump base with long axis support is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A vertical multi-stage pump base with a long axis support comprises a base shell, a water circulation chamber is arranged inside the base shell, the inner side of the bottom end of the water circulation chamber is fixedly connected to the bottom of a copper sleeve mounting frame, a copper sleeve is arranged on the top of the copper sleeve mounting frame, the tail of the long axis rotor extends into the copper sleeve through the through hole on the top wall of the base shell, the inside of the copper sleeve and the tail of the long axis rotor are matched with a clearance, a first water inlet is arranged at one end of the base shell, and a first water outlet is arranged at the other end correspondingly, the first water inlet passes through the water circulation chamber and is conductively connected to the first water outlet, a first water circulation hole is arranged at one end of the copper sleeve mounting frame, and a second water circulation hole is arranged at the other end correspondingly, the first water circulation hole passes through the internal space of the copper sleeve mounting frame and is conductively connected to the second water circulation hole.

[0006] Preferably, a reinforcement frame is provided on the outer side of the bottom end of the base shell.

[0007] Preferably, fixing holes are correspondingly provided at the four corners of the reinforced frame.

[0008] Preferably, fixing ears are provided on the outer side of the base shell, and the fixing ears are arranged in sequence on the outer side of the base shell at the same interval angle.

[0009] Preferably, a connecting hole is provided inside the fixing ear.

[0010] Preferably, the inner hole of the copper sleeve is precisely machined.

[0011] Preferably, the tail of the long shaft is processed by a high-precision grinder with a bright surface, which facilitates smooth rotation under the lubrication of water inside the copper sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: (1) external water enters the water circulation chamber through the first water inlet hole, and the water inside the water circulation chamber is discharged through the first water outlet hole, thereby forming a water circulation between the external water and the water circulation chamber. The water inside the water circulation chamber enters the copper sleeve mounting frame through the first water circulation hole to lubricate the long shaft and the copper sleeve. The lubricated water flows out to the inside of the water circulation chamber through the second water circulation hole. Through the water circulation in the water circulation chamber and the external water circulation, the water is provided for the rotation of the long shaft and the lubrication between the copper sleeve, thereby reducing the friction between the long shaft and the base.

[0013] (2) The tail of the long shaft rotor of the device extends into the copper sleeve, and the long shaft rotates inside the copper sleeve. When the water pump is working, the long shaft rotates. The copper sleeve fixed by the copper sleeve mounting frame supports the long shaft to prevent the long shaft from swinging during operation and affecting the normal operation of the water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the right side cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure.

[0018] Explanation of the reference numerals in the figure: base shell 1, long axis 2, copper sleeve 3, copper sleeve mounting frame 11, second water circulation hole 12, first water circulation hole 13, first water inlet hole 14, water circulation chamber 15, first water outlet hole 16, fixing hole 17, reinforcement frame 18, fixing ear 19, connecting hole 20. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-3 The utility model provides an embodiment: a vertical multi-stage pump base with a long axis support, including a base shell 1, a water circulation chamber 15 is arranged inside the base shell 1, the inner side of the bottom end of the water circulation chamber 15 is fixedly connected to the bottom of the copper sleeve mounting frame 11, and a copper sleeve 3 is arranged on the top of the copper sleeve mounting frame 11. The tail of the long axis 2 rotor passes through the through hole on the top wall of the base shell 1 and extends into the copper sleeve 3. The inside of the copper sleeve 3 and the tail of the long axis 2 rotor are clearance-matched. The inner hole of the copper sleeve 3 is precisely machined, and the copper sleeve 3 is tightly pressed into the copper sleeve mounting frame 11. The tail of the long axis 2 rotor extends into the copper sleeve 3. The long axis 2 rotates inside the copper sleeve 3. When the water pump is working, the long axis 2 rotates. The copper sleeve 3 fixed by the copper sleeve mounting frame 11 supports the long axis 2 to prevent the long axis 2 from swinging during operation and affecting the normal operation of the water pump. At the same time, the long axis 2 and the copper sleeve 3 are lubricated by water circulation. One end of the base shell 1 is provided with a first inlet The first water inlet hole 14 passes through the water circulation chamber 15 and is connected to the first water outlet hole 16. External water enters the water circulation chamber 15 through the first water inlet hole 14, and the water inside the water circulation chamber 15 is discharged through the first water outlet hole 16, thereby forming a water circulation between the external water and the water circulation chamber 15. The copper sleeve mounting frame 11 has a first water circulation hole 13 at one end and a second water circulation hole 12 at the other end. The first water circulation hole 13 passes through the internal space of the copper sleeve mounting frame 11 and is connected to the second water circulation hole 12. The water inside the water circulation chamber 15 enters the copper sleeve mounting frame 11 through the first water circulation hole 13 to lubricate the long axis 2 and the copper sleeve 3. The lubricated water flows out to the inside of the water circulation chamber 15 through the second water circulation hole 12, thereby circulating with the external water through the water circulation chamber 15.

[0022] A reinforcement frame 18 is provided on the outer side of the bottom end of the base shell 1, which increases the overall stability of the base shell 1. Fixing holes 17 are correspondingly provided at the four corners of the reinforcement frame 18, and the fixing holes 17 can be connected to external fixing bolts to facilitate fixing the entire base shell 1 through the fixing holes 17.

[0023] A fixing ear 19 is provided on the outside of the base shell 1, and the fixing ears 19 are arranged in sequence on the outside of the base shell 1 at the same interval angle. A connecting hole 20 is provided inside the fixing ear 19, and the connecting hole 20 can be connected to an external connecting bolt to connect and fix the base shell 1 to the water pump connecting plate.

[0024] The inner hole of the copper sleeve 3 is precisely machined to increase the smoothness and reduce the friction of the long shaft 2 when rotating inside the copper sleeve 3. The tail of the long shaft 2 is processed by a high-precision grinder, and the surface is bright, so it can rotate smoothly under the lubrication of water inside the copper sleeve 3.

[0025] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A vertical multi-stage pump base with long axis support, characterized in that: The invention comprises a base shell (1), wherein a water circulation chamber (15) is provided inside the base shell (1), wherein the inner side of the bottom end of the water circulation chamber (15) is fixedly connected to the bottom of a copper sleeve mounting frame (11), wherein a copper sleeve (3) is installed at the top end of the copper sleeve mounting frame (11), wherein the tail of the long shaft (2) rotor passes through a through hole on the top wall of the base shell (1) and extends into the inside of the copper sleeve (3), wherein the inside of the copper sleeve (3) and the tail of the long shaft (2) rotor are clearance-matched, wherein a first water inlet hole (14) is provided at one end of the base shell (1), and a first water outlet hole (16) is provided at the other end correspondingly, wherein the first water inlet hole (14) passes through the water circulation chamber (15) and is conductively connected to the first water outlet hole (16), wherein a first water circulation hole (13) is provided at one end of the copper sleeve mounting frame (11), and a second water circulation hole (12) is provided at the other end correspondingly, wherein the first water circulation hole (13) passes through the internal space of the copper sleeve mounting frame (11) and is conductively connected to the second water circulation hole (12).

2. A vertical multi-stage pump base with long axis support according to claim 1, characterized in that: A reinforcement frame (18) is provided on the outer side of the bottom end of the base shell (1).

3. A vertical multi-stage pump base with long axis support according to claim 2, characterized in that: The four corners of the reinforcement frame (18) are correspondingly provided with fixing holes (17).

4. A vertical multi-stage pump base with long axis support according to claim 1, characterized in that: The outer side of the base shell (1) is provided with fixing ears (19), and the fixing ears (19) are arranged in sequence on the outer side of the base shell (1) at the same interval angle.

5. A vertical multi-stage pump base with long axis support according to claim 4, characterized in that: A connecting hole (20) is provided inside the fixing ear (19).

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