CN211116644U - Pipeline circulating pump - Google Patents

Abstract

The utility model discloses a pipeline circulating pump, which comprises a motor, a pump head and a pump body. The motor is arranged on a motor base, a protective cover is arranged on the outer side of the motor, and the protective cover and the motor base are fixedly connected by bolts , an airbag is provided on the outer surface of the motor, a mounting plate is provided on the side of the airbag close to the protective cover, the mounting plate is symmetrically provided with mounting holes, and one end of the first spring is arranged in the mounting hole, The other end of the first spring is connected to a protective cover, a partition is arranged between the inner side walls of the protective cover, a through hole is arranged on the partition, a filter screen is arranged in the through hole, and the The upper surface of the motor is provided with one end of a connecting rod, the other end of the connecting rod penetrates the partition and is threadedly connected with a fan blade, the fan blade is rotatably installed on the upper side of the partition, and the outer side of the connecting rod is sleeved with a second A spring, the second spring is arranged between the motor and the partition plate, and the outer surface of the protective cover is evenly provided with air holes on both sides.

Description

A pipeline circulating pump

technical field

The utility model relates to the technical field of water pumps, in particular to a pipeline circulating pump.

Background technique

The use of pipeline circulating pumps in daily life and industrial and agricultural production is very common. In order to improve the operating efficiency of the system and save energy and other purposes, it is often necessary to force the liquid to circulate in the pipeline system, which is inseparable from the pipeline circulating pump. In intermittent operation, the motor itself will vibrate when the circulating pump is working, and at the same time, the motor shaft and the pump shaft will generate other forces, such as radial force, which will make the pump shaft shake, reducing the working efficiency of the motor and even causing damage to the motor. There is a mechanical sealing device in the pump body, but there is still the risk of water seepage, which requires a secondary sealing device, which brings inconvenience to the disassembly and maintenance of the circulating pump. Therefore, we propose a pipeline circulating pump to solve the above problems.

Utility model content

The purpose of the present utility model is to provide a pipeline circulating pump, so as to solve the problem that the circulating pump proposed in the above-mentioned background technology will vibrate when the motor itself is working, and at the same time, the motor shaft and the pump shaft will generate other forces such as radial force to make the pump shaft. Shaking reduces the working efficiency of the motor, and even causes damage to the motor. In addition, although the pump body is equipped with a mechanical sealing device, there is still a risk of water seepage, which requires a secondary sealing device, which brings inconvenience to the disassembly and maintenance of the circulating pump. .

In order to achieve the above purpose, the utility model provides the following technical solutions: a pipeline circulating pump, including a motor, a pump head and a pump body, the motor is arranged on the motor seat, the outer side of the motor is provided with a protective cover, the protection The cover and the motor seat are fixedly connected by bolts, the outer surface of the motor is provided with an airbag, the side of the airbag close to the protective cover is provided with a mounting plate, the mounting plate is symmetrically provided with mounting holes, and the mounting holes are arranged in the mounting holes. One end of the first spring is provided, and the other end of the first spring is connected to the protective cover. A partition is arranged between the inner side walls of the protective cover, and a through hole is arranged on the partition. There is a filter screen inside, one end of a connecting rod is set on the upper surface of the motor, the other end of the connecting rod penetrates the partition plate and is threadedly connected with a fan blade, and the fan blade is rotatably installed on the upper side of the partition plate. The outer side of the connecting rod is sleeved with a second spring, the second spring is arranged between the motor and the partition plate, the outer surface of the protective cover is evenly provided with air holes on both sides, and the output end of the motor extends into the motor seat Connected with one end of the coupling, the pump body is provided with a pump shaft, one end of the pump shaft extends through the pump head into the motor seat and is connected with the other end of the coupling, the other end of the pump shaft With impeller.

Preferably, a control box is provided on the outer surface of the protective cover, and the control box is electrically connected to the motor.

Preferably, a sealing member is provided between the pump head and the pump shaft, and the material of the sealing member is graphite or silicon carbide.

Preferably, the materials of the pump body, pump head and impeller are cast iron HT200.

Preferably, the material of the coupling is cast steel ZG270-500.

Compared with the prior art, the beneficial effect of the utility model is: a pipeline circulating pump, which has the following advantages;

(1) When the pipeline circulating pump generates vibration, the air in the air bag on the motor plays the role of reducing the vibration, and the vibration is transmitted to the first spring through the mounting plate, and the vibration is further reduced by the elasticity of the first spring itself, so that the The motor works relatively smoothly, which reduces the work shaking, ensures the working efficiency of the motor, and avoids damage to the motor caused by long-term vibration;

(2) The air in the protective cover is exchanged with the outside air through the through holes and air holes, and the vibration is used to dissipate heat when the motor is working, which avoids the reduction of the working efficiency or even failure of the motor caused by overheating, and ensures the working life of the motor. Set up a filter screen to prevent debris from entering the protective cover and causing damage to the motor;

(3) The seals can keep the pump shaft running stably and reduce the mechanical friction when the pump shaft rotates, and the seals made of graphite or silicon carbide have certain water absorption properties, which can prevent water seepage in the event of accidental water leakage and ensure that water cannot enter after water leakage. into the motor and burn the motor.

Description of drawings

Fig. 1 is the front sectional structure schematic diagram of the utility model;

Fig. 2 is the enlarged schematic diagram of the structure at A of Fig. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 .

In the picture: 1-motor, 2-pump head, 3-pump body, 4-motor base, 5-protective cover, 6-airbag, 7-installation plate, 8-first spring, 9-partition plate, 10-passage Hole, 11-filter, 12-connecting rod, 13-fan blade, 14-second spring, 15-air hole, 16-coupling, 17-pump shaft, 18-impeller, 19-control box, 20-seal pieces.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below 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 the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a pipeline circulating pump, comprising a motor 1, a pump head 2 and a pump body 3, the motor 1 is arranged on the motor base 4, the motor 1 is The outer side is provided with a protective cover 5, the protective cover 5 and the motor base 4 are fixedly connected by bolts, the motor base 4 and the pump head 2 are fixedly connected by bolts, and the pump head 2 is arranged on the pump body 3 and is connected by bolts; the motor 1 An airbag 6 is provided on the outer surface of the airbag 6, and a mounting plate 7 is provided on the side of the airbag 6 close to the protective cover 5. The mounting plate 7 is symmetrically provided with mounting holes, and the mounting holes are provided with the first spring 8. At one end, the other end of the first spring 8 is connected with the protective cover 5. When the pipeline circulating pump works to generate vibration, the air in the airbag 6 on the motor 1 plays a role in reducing the vibration, and the vibration passes through the mounting plate 7. It is transmitted to the first spring 8, and the vibration is further reduced by the elasticity of the first spring 8, so that the motor 1 works more smoothly, reduces the work shaking, ensures the working efficiency of the motor 1, and avoids damage to the motor 1 caused by long-term vibration. ; A partition 9 is provided between the inner side walls of the protective cover 5, the partition 9 is provided with a through hole 10, the through hole 10 is provided with a filter screen 11, and the upper surface of the motor 1 is provided with One end of the connecting rod 12, the other end of the connecting rod 12 penetrates the partition plate 9 and is threadedly connected with a fan blade 13, the fan blade 13 is rotatably installed on the upper side of the partition plate 9, and the outer side of the connecting rod 12 is sleeved with a first Two springs 14, the second spring 14 is arranged between the motor 1 and the partition plate 9, the outer surface of the protective cover 5 is evenly provided with air holes 15 on both sides, and the vibration generated by the motor 1 is transmitted to the connecting rod 12 , drive the connecting rod 12 to move up and down, and rotate the fan blade 13 installed on the partition plate 9. When the connecting rod 12 moves up and down, it rotates under the driving of the connecting rod 12, and the air in the protective cover 5 is released through the through hole 10 and the air hole 15. Exchange with the outside air, use vibration to dissipate heat when the motor 1 is working, avoid the reduction of the working efficiency or even failure of the motor 1 due to overheating, and ensure the working life of the motor 1. By setting the filter 11 to prevent debris from entering the protective cover 5 damage to the motor 1; the output end of the motor 1 protrudes into the motor base 4 and is connected to one end of the coupling 16, the pump body 3 is provided with a pump shaft 17, and one end of the pump shaft 17 It extends through the pump head 2 into the motor base 4 and is connected to the other end of the coupling 16 , and the other end of the pump shaft 17 is provided with an impeller 18 .

Specifically, a control box 19 is provided on the outer surface of the protective cover 5 , the control box 19 is electrically connected with the motor 1 , and the power of the motor 1 is controlled by the control box 19 .

Specifically, a sealing member 20 is provided between the pump head 2 and the pump shaft 17 , and the material of the sealing member 20 is graphite or silicon carbide. The sealing member 20 can keep the pump shaft 17 running stably and reduce the rotation of the pump shaft 17 . In addition, the sealing member 20 made of graphite or silicon carbide has a certain water absorption performance, which can cause water seepage unexpectedly. After water leakage, it can ensure that water cannot enter the motor 1 and burn the motor 1 .

Specifically, the materials of the pump body 3, the pump head 2 and the impeller 18 are all cast iron HT200.

Specifically, the material of the coupling 16 is cast steel ZG270-500.

Working principle: When the pipeline circulation pump of the present invention generates vibration, the air in the airbag 6 on the motor 1 plays a role in reducing the vibration, and the vibration is transmitted to the first spring 8 through the mounting plate 7, and the first spring 8 Its own elasticity further reduces vibration, makes motor 1 work more smoothly, reduces work shaking, ensures the work efficiency of motor 1, and avoids damage to motor 1 caused by long-term vibration; the vibration generated by motor 1 is transmitted to the connecting rod. 12, the connecting rod 12 is driven to move up and down, and the fan blade 13 installed on the partition plate 9 is rotated. The air is exchanged with the outside air, and the vibration is used to dissipate heat when the motor 1 is working, which avoids the reduction of the working efficiency or even failure of the motor 1 caused by overheating, and ensures the working life of the motor 1. The filter 11 is provided to prevent debris from entering the protection. In the cover 5, the motor 1 is damaged; the seal 20 can keep the pump shaft 17 running stably, reduce the mechanical friction when the pump shaft 17 rotates, and the seal 20 made of graphite or silicon carbide has a certain water absorption performance, which can be used in Accidental water seepage occurs. After water leakage, it can ensure that water cannot enter the motor 1 and burn the motor 1.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication between the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description in the specification and the drawings, and the specific connection method of each part adopts the mature bolts, rivets and welding in the prior art. and other conventional means, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection manner in the prior art, which will not be described in detail here.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a pipeline circulating pump, includes motor (1), pump head (2) and the pump body (3), its characterized in that: the motor (1) is arranged on a motor base (4), a protective cover (5) is arranged on the outer side of the motor (1), the protective cover (5) is fixedly connected with the motor base (4) through bolts, an air bag (6) is arranged on the outer surface of the motor (1), one side, close to the protective cover (5), of the air bag (6) is provided with a mounting plate (7), the mounting plate (7) is symmetrically provided with mounting holes, one end of a first spring (8) is arranged in each mounting hole, the other end of the first spring (8) is connected with the protective cover (5), a partition plate (9) is arranged between the inner side walls of the protective cover (5), through holes (10) are formed in the partition plate (9), a filter screen (11) is arranged in each through hole (10), one end of a connecting rod (12) is arranged on the upper surface of the motor (1), the other end of the connecting rod (12) penetrates through the partition plate (, flabellum (13) rotate to be installed at baffle (9) upside, the outside cover of connecting rod (12) has second spring (14), second spring (14) set up between motor (1) and baffle (9), the surface upside of safety cover (5) evenly is equipped with gas pocket (15), the output of motor (1) stretches out to be connected with the one end of shaft coupling (16) in motor cabinet (4), be equipped with pump shaft (17) in the pump body (3), the one end of pump shaft (17) is passed pump head (2) and is stretched into and be connected with the other end of shaft coupling (16) in motor cabinet (4), the other end of pump shaft (17) is equipped with impeller (18).

2. The pipe circulation pump of claim 1, wherein: be equipped with control box (19) on the surface of safety cover (5), control box (19) are connected with motor (1) electricity.

3. The pipe circulation pump of claim 1, wherein: a sealing element (20) is arranged between the pump head (2) and the pump shaft (17), and the sealing element (20) is made of graphite or silicon carbide.

4. The pipe circulation pump of claim 1, wherein: the pump body (3), the pump head (2) and the impeller (18) are all made of cast iron HT 200.

5. The pipe circulation pump of claim 1, wherein: the coupling (16) is made of cast steel ZG 270-500.

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