Stirring type sludge sewage pump

Abstract

The invention discloses a stirring type sludge sewage pump, and relates to the technical field of submersible pumps, in particular to the stirring type sludge sewage pump which comprises a submersible motor, a transmission pump cover, an impeller, a main stirring shaft, a plurality of driven stirring shafts and a plurality of side suction pipes. The transmission pump cover is provided with an inner cavity, and a transmission assembly is arranged in the inner cavity. The submersible motor is fixedly arranged on the transmission pump cover; a main shaft of the submersible motor penetrates through the inner cavity and is connected with the impeller; the impeller is connected with a main stirring blade through a main stirring shaft; the main stirring blade is arranged in the main suction inlet, and the main suction inlet is communicated with the inner cavity; the driven stirring shaft is connected with a main shaft of the submersible motor through a transmission assembly; one end of each side suction pipe is communicated with the inner cavity, and the side suction pipes are combined to form a support structure; the structure has the advantages of being large in sewage discharge area, high in suction capacity and particularly suitable for sludge, does not need to be additionally installed and fixed, and is convenient to use.

Description

Technical Field

[0001] The present application relates to the technical field of submersible pumps, and in particular to a stirring sludge sewage pump. Background Art

[0002] Submersible sewage pump is a submersible sewage pump, which is particularly suitable for conveying liquids containing hard solids, fibers, and particularly dirty, sticky, and slippery liquids. There are two types: AS and AV submersible sewage pumps.

[0003] Due to its compact structure, small footprint, long continuous operation time and convenient installation and maintenance, submersible sewage pumps have been increasingly valued by people and their scope of use has become wider and wider, from being used to simply transport clean water to being able to transport various domestic sewage, industrial wastewater, construction site drainage, liquid feed, etc. It plays a very important role in municipal engineering, industry, hospitals, construction, restaurants, water conservancy construction and other industries.

[0004] However, the submersible sewage pumps currently on the market have only one suction port located below the pump body. The sewage discharge area of ​​such a pump is limited, and the pump needs to be constantly moved to expand the sewage discharge area. Each time the pump is moved, it needs to be installed and fixed, which is time-consuming and labor-intensive. When there are sediments such as silt in the sewage, the pump has no way to pump it. After the pump has been used for a period of time, the gap between the impeller and the pump body and pump cover increases, resulting in a decrease in the flow rate and head of the pump. At this time, the pump needs to be disassembled to replace the impeller, which shortens the service life of the pump and increases the operating cost. Summary of the invention

[0005] The object of the present invention is to avoid the shortcomings of the prior art and provide a technology that can effectively increase the suction area of ​​a sewage pump.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a stirring type sludge sewage pump, comprising: a submersible motor, a transmission pump cover, an impeller, a main stirring shaft, a plurality of driven stirring shafts and a plurality of side suction pipes; the transmission pump cover is provided with an inner cavity, in which a transmission assembly is provided; the submersible motor is fixedly mounted on the transmission pump cover, and the main shaft of the submersible motor passes through the inner cavity and is connected to the impeller; the impeller is connected to a main stirring blade via the main stirring shaft; the main stirring blade is arranged in a main suction port, and the main suction port is connected to the inner cavity; the driven stirring shaft is connected to the main shaft of the submersible motor via the transmission assembly; one end of the side suction pipe is connected to the inner cavity, and each side suction pipe is combined to form a bracket structure.

[0008] Specifically, the transmission pump cover is provided with a plurality of bearing mounting parts, and the bearing mounting parts are used to mount the driven stirring shaft; the driven stirring shaft is connected to the bearing mounting parts through bearings.

[0009] More specifically, the transmission assembly includes a driving gear and a plurality of driven gears; the main shaft of the submersible motor passes through the axis of the driving gear and is fixedly connected to the driving gear; the driven stirring shaft passes through the axis of the corresponding driven gear and is fixedly connected to the driven gear; the driving gear is meshed with each driven gear respectively.

[0010] More specifically, a mechanical seal assembly is provided between the driven gear and the bearing.

[0011] In the above, the transmission pump cover is also connected to a gap adjustment assembly, and the impeller is arranged in the gap adjustment assembly.

[0012] Furthermore, the gap adjustment assembly includes an upper grinding plate and a lower grinding plate; the shapes of the upper grinding plate and the lower grinding plate match the shapes of the upper part and the lower part of the impeller respectively.

[0013] Furthermore, the upper grinding plate is connected to the bottom surface of the transmission pump cover through an upper adjusting screw.

[0014] Furthermore, the main suction port is also provided with a suction cover; the lower grinding plate is connected to the top surface of the suction cover through a lower adjusting screw.

[0015] Furthermore, a suction speaker cover is fixedly provided at the bottom of the suction cover.

[0016] In another specific embodiment, a plurality of suction holes are arranged on the side of the side suction pipe; the suction pipe comprises at least three suction pipes.

[0017] The beneficial effects achieved by the present invention are as follows: a stirring type sludge sewage pump comprises: a submersible motor, a transmission pump cover, an impeller, a main stirring shaft, a plurality of driven stirring shafts and a plurality of side suction pipes; the transmission pump cover is provided with an inner cavity, in which a transmission assembly is provided; the submersible motor is fixedly mounted on the transmission pump cover, and the main shaft of the submersible motor passes through the inner cavity and is connected to the impeller; the impeller is connected to a main stirring blade via the main stirring shaft; the main stirring blade is arranged in the main suction port, and the main suction port is connected to the inner cavity; the driven stirring shaft is connected to the main shaft of the submersible motor via the transmission assembly; one end of the side suction pipe is connected to the inner cavity, and each side suction pipe is combined to form a bracket structure; this structure not only has the advantages of a large sewage discharge area, a strong suction capacity, and is particularly suitable for sludge, but also does not require additional installation and fixation, and is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of a stirring sludge sewage pump according to an embodiment of the present application;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a transmission pump cover of an agitating sludge and sewage pump according to an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the structure of a top view of a transmission pump cover of an agitating sludge and sewage pump according to an embodiment of the present application;

[0022] in, Figures 1 to 3 Including:

[0023] 1. Submersible motor; 11. Main shaft; 12. Oil chamber;

[0024] 2. Transmission pump cover; 21. Inner cavity; 22. Transmission assembly; 221. Driving gear; 222. Driven gear;

[0025] 23. bearing mounting portion; 231. bearing; 232. mechanical seal assembly;

[0026] 3. Gap adjustment assembly; 31. Upper grinding plate; 311. Upper adjusting screw; 32. Lower grinding plate; 321. Lower adjusting screw;

[0027] 4. Impeller; 41. Main stirring shaft; 42. Main stirring blade;

[0028] 5. Driven stirring shaft; 51. Driven stirring wheel;

[0029] 6. Suction cover; 61. Suction horn cover;

[0030] 7. Side suction pipe; 71. Side water inlet flange. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described through the implementation method with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0032] Example 1

[0033] One of the implementation methods of a stirring sludge sewage pump of the present application is as follows: Figures 1 to 3 As shown, it includes: a submersible motor 1, a transmission pump cover 2, an impeller 4, a main stirring shaft 41, a plurality of driven stirring shafts 5 and a plurality of side suction pipes 7; the transmission pump cover 2 is provided with an inner cavity 21, and a transmission component 22 is provided in the inner cavity 21.

[0034] The submersible motor 1 is fixed on the transmission pump cover 2, and the main shaft 11 of the submersible motor 1 passes through the inner cavity 21 and is connected to the impeller 4; the impeller 4 is connected to the main stirring blade 42 through the main stirring shaft 41; the main stirring blade 42 is arranged in the main suction port, and the main suction port is connected to the inner cavity 21.

[0035] The driven stirring shaft 5 is connected to the main shaft 11 of the submersible motor 1 through the transmission assembly 22. Each driven stirring shaft 5 is respectively connected to a corresponding driven stirring wheel 51. The main shaft 11 drives multiple driven stirring wheels 51 for stirring, which can effectively expand the stirring area without increasing the number of submersible motors.

[0036] One end of the side suction pipe 7 is communicated with the inner cavity 21, and each side suction pipe 7 is combined to form a bracket structure.

[0037] In this embodiment, the lower end of the transmission pump cover 2 is provided with three or more side water inlet flanges 71 for lateral water inlet, which are respectively connected to the corresponding side suction pipes 7, and a plurality of rectangular holes are opened on the side of the side suction pipes 7. Sewage containing silt enters from the rectangular holes under the suction force generated by the impeller 4, and at the same time, three or more side suction pipes 7 of L-shaped structure can support the whole pump, which not only has a large sewage discharge area, strong suction capacity, and is particularly suitable for silt, but also does not need to be additionally installed and fixed to the submersible pump, and is easy to use.

[0038] Example 2

[0039] One of the implementation methods of a stirring sludge sewage pump of the present application is as follows: Figures 1 to 3 As shown, the main technical scheme of this embodiment is basically the same as that of Embodiment 1. The features not explained in this embodiment are explained in Embodiment 1 and will not be described again. The difference between this embodiment and Embodiment 1 is that:

[0040] The transmission pump cover 2 is also connected to a gap adjustment component 3 , and the impeller 4 is arranged in the gap adjustment component 3 .

[0041] Specifically, the gap adjustment assembly 3 includes an upper grinding plate 31 and a lower grinding plate 32 ; the shapes of the upper grinding plate 31 and the lower grinding plate 32 match the shapes of the upper part and the lower part of the impeller 4 respectively.

[0042] More specifically, the main suction port is further provided with a suction cover 6 ; a suction horn cover 61 is further fixedly provided at the bottom of the suction cover 6 .

[0043] The upper grinding plate 31 is connected to the bottom surface of the transmission pump cover 2 through the upper adjusting screw rod 311. The lower grinding plate 32 is connected to the top surface of the suction cover 6 through the lower adjusting screw rod 321.

[0044] In this embodiment, the impeller 4 has blades arranged symmetrically in the upper and lower parts. The transmission pump cover 2, in cooperation with the clearance adjustment assembly 3, can adjust the axial clearance between the impeller 4 and the upper grinding plate 31 and the lower grinding plate 32 without disassembling the pump, which can effectively extend the service life.

[0045] Example 3

[0046] One of the implementation methods of a stirring sludge sewage pump of the present application is as follows: Figures 1 to 3 As shown, the main technical scheme of this embodiment is basically the same as that of embodiment 1 or embodiment 2. The features not explained in this embodiment are explained in embodiment 1 or embodiment 2, and will not be repeated here. The difference between this embodiment and embodiment 1 or embodiment 2 is:

[0047] The transmission pump cover 2 is provided with a plurality of bearing mounting portions 23 , and the bearing mounting portions 23 are used to mount the driven stirring shaft 5 ; the driven stirring shaft 5 and the bearing mounting portions 23 are connected via bearings 231 .

[0048] The transmission assembly 22 includes a driving gear 221 and a plurality of driven gears 222; the main shaft 11 of the submersible motor 1 passes through the axis of the driving gear 221 and is fixedly connected to the driving gear 221; the driven stirring shaft 5 passes through the axis of the corresponding driven gear 222 and is fixedly connected to the driven gear 222; the driving gear 221 is meshedly connected with each driven gear 222. When the submersible motor 1 drives the main shaft 11 to rotate, it drives the driven stirring wheel 51 to rotate through the driving gear 221, the driven gear 222 and the driven stirring shaft 5 in sequence to stir the sludge.

[0049] In this embodiment, three (or more) driven stirring shafts 5 are provided; the three driven stirring shafts 5 are evenly distributed and staggered with each side suction pipe 7 .

[0050] Furthermore, a mechanical seal assembly 232 is provided between the driven gear 222 and the bearing 231 to prevent the driven stirring shaft 5 from being corroded by mud or sewage.

[0051] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A stirring sludge sewage pump, characterized in that: include: Submersible motor, transmission pump cover, impeller, main stirring shaft, several driven stirring shafts and several side suction pipes; The transmission pump cover is provided with an inner cavity, and a transmission assembly is provided in the inner cavity; The submersible motor is fixed on the transmission pump cover, the main shaft of the submersible motor passes through the inner cavity and is connected to the impeller; the impeller is connected to a main stirring blade through the main stirring shaft; the main stirring blade is arranged in the main suction port, and the main suction port is communicated with the inner cavity; The driven stirring shaft is connected to the main shaft of the submersible motor through the transmission assembly; One end of the side suction pipe is communicated with the inner cavity, and each of the side suction pipes is combined to form a bracket structure.

2. The stirring sludge sewage pump according to claim 1 is characterized in that: The transmission pump cover is provided with a plurality of bearing mounting parts, and the bearing mounting parts are used to mount the driven stirring shaft; The driven stirring shaft is connected to the bearing mounting portion via a bearing.

3. The stirring sludge sewage pump according to claim 2 is characterized in that: The transmission assembly includes a driving gear and a plurality of driven gears; The main shaft of the submersible motor passes through the axis of the driving gear and is fixedly connected to the driving gear; The driven stirring shaft passes through the axis of the corresponding driven gear and is fixedly connected to the driven gear; The driving gear is meshedly connected with each driven gear.

4. The stirring sludge sewage pump according to claim 3 is characterized in that: A mechanical seal assembly is also provided between the driven gear and the bearing.

5. A stirring sludge sewage pump according to any one of claims 1 to 4, characterized in that: The transmission pump cover is also connected to a gap adjustment assembly, and the impeller is arranged in the gap adjustment assembly.

6. The stirring sludge sewage pump according to claim 5, characterized in that: The gap adjustment assembly includes an upper grinding plate and a lower grinding plate; The shapes of the upper grinding plate and the lower grinding plate match the shapes of the upper part and the lower part of the impeller respectively.

7. The stirring sludge sewage pump according to claim 6, characterized in that: The upper grinding plate is connected to the bottom surface of the transmission pump cover through an upper adjusting screw rod.

8. The stirring sludge sewage pump according to claim 7, characterized in that: The main suction port is also provided with a suction cover; The lower grinding plate is connected to the top surface of the suction cover through a lower adjusting screw.

9. The stirring sludge sewage pump according to claim 8, characterized in that: A suction horn cover is also fixedly provided at the bottom of the suction cover.

10. The stirring sludge sewage pump according to claim 1, characterized in that: The side surface of the side suction pipe is provided with a plurality of suction holes; The suction pipes include at least three.

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