CN109944804B

CN109944804B - A water pump with slag crushing function

Info

Publication number: CN109944804B
Application number: CN201910237274.5A
Authority: CN
Inventors: 陈俊红; 甘立锋
Original assignee: Sichuan Aimashi Technology Co ltd
Current assignee: Sichuan Aimashi Technology Co ltd
Priority date: 2019-03-27
Filing date: 2019-03-27
Publication date: 2025-03-04
Anticipated expiration: 2039-03-27
Also published as: CN109944804A

Abstract

The present invention discloses a water pump with a slag crushing function, including a frame, a gasoline engine and a water pump mounted on the frame, the water pump including a pump casing, a volute and an impeller arranged in the pump casing, one end of the output shaft of the gasoline engine extends into the pump casing and is connected to a crushing mechanism, a water inlet is opened on one end face of the volute, the impeller is located in the volute and is sleeved on the output shaft of the gasoline engine, one side of the pump casing is opened with a water pumping port, the other side is opened with a water outlet, and a drainage channel connected to the water pumping port and the volute water inlet is formed in the pump casing, and the crushing cutter is located in the drainage channel. The present invention arranges a crushing mechanism at the end of the output shaft of the gasoline engine, and integrates the crushing cutter in the front side of the impeller in the pump casing, which can not only follow the high-speed rotation of the impeller and crush the small biogas residue entering from the water pumping port, but also has a high overall integration, a compact structure, and a low manufacturing cost.

Description

Water pump with slag crushing function

Technical Field

The invention relates to the field of pumping equipment, in particular to a water pump with a slag crushing function.

Background

At present, a gasoline engine water pump is often used in the fields of farmland drainage, landscaping, aquaculture, irrigation drought resistance and the like, and the working principle of the gasoline engine water pump is that air and fuel oil are mixed and then combusted to work, and power is generated to drive an impeller of the water pump to rotate, so that pressure difference is generated, and continuous water sucking and draining operations are carried out. The existing gasoline engine water pump is improved in appearance or working, and only the use function or output power of the existing gasoline engine water pump is simply increased, and when water is pumped and drained from a biogas field with small biogas residues or fibers, a blocking phenomenon often occurs, so that the operation is difficult to carry out.

The utility model provides a water inlet department with petrol engine water pump is provided with broken cutting mechanism, like the chinese invention patent of application number 201310601029.0, it discloses a water pump machine, mainly includes the cutter subassembly that sets up at the water inlet inner chamber, and this cutter subassembly is including outer cutter and the inscribed sword that is cylindric structure, just the outer cutter be equipped with can with water inlet inner chamber fixed connection's connection structure, this connection structure including fixed set up in the first dog of outer cutter outer wall, the inner wall of water inlet inner chamber is provided with and is used for stopping the second dog of first dog, and the pump shaft drives interior cutter high-speed rotation, and when the outer cutter rotated certain angle, first dog and second dog contacted each other and spacing to make the outer cutter relatively fixed in the water inlet inner chamber, finally form the form of cutting relatively with the inscribed sword. The internal and external cutters can effectively cut biogas residue fibers, but the internal cutters are seriously worn with the external cutters due to too high rotating speed, so that the service life is very short, and once serious deformation occurs, the internal cutters are easy to break the external cutters to cause equipment failure.

Disclosure of Invention

The invention aims to provide the water pump with the slag crushing function, and the crushing mechanism in the water pump not only can realize the relative cutting between the inner cutter and the outer cutter, but also can not be contacted basically, so that the abrasion between the inner cutter and the outer cutter is reduced greatly.

The invention aims at realizing the technical scheme that the water pump with the slag crushing function comprises a frame, a gasoline engine and a water pump, wherein the gasoline engine and the water pump are arranged on the frame, the gasoline engine is connected with the water pump, the water pump comprises a pump shell, a volute and an impeller, wherein the volute and the impeller are arranged in the pump shell, one end of an output shaft of the gasoline engine extends into the pump shell and is connected with a crushing mechanism, the crushing mechanism comprises a crushing cutter and a cutter cylinder, the crushing cutter is fixedly sleeved on the position, close to the end, of the output shaft of the gasoline engine, of the stretcher rod, the cutter cylinder is sleeved on the outer end of the crushing cutter, a gap capable of relatively rotating is reserved between the cutter cylinder and the crushing cutter, one end, close to the outer end of the crushing cutter, of the cutter cylinder is provided with a planetary speed reducing mechanism, one end of the stretcher rod penetrates out of the crushing cutter and is connected with a sun gear of the planetary speed reducing mechanism, the volute is arranged in the inner cavity of the cutter cylinder, the crushing mechanism is fixed on the side wall, one side face of the gasoline engine is provided with a water inlet, the end face of the gasoline engine is coaxially arranged at one side face, the output shaft of the gasoline engine is coaxially connected with the gasoline engine, the output shaft is coaxially arranged with the gasoline engine, and extends into a water pump shell, the water draining port is formed in the pump shell, the water draining port is respectively, the water port is sleeved on the side face of the pump is connected with the pump, the pump is provided with a water draining port, the water pump is connected with the pump, the water draining port is respectively, and the water pump is provided with the water pump, and the water draining port is connected with the water pump through the water pump.

Further, the crushing cutter is of a cylindrical body structure coaxial with the cutter barrel, a plurality of strip-shaped holes communicated with the inner cavity of the crushing cutter are formed in the side wall of the crusher cutter, the strip-shaped holes are parallel to each other, the length direction of each strip-shaped hole forms an included angle with the axial direction of the crushing cutter, the range of the included angle is 2-5 degrees, the surface wall of the crushing cutter on at least one side of each strip-shaped hole forms a cutting edge, one end of the crushing cutter, which can be cut, is positioned in a drainage channel, the other end of the crushing cutter is positioned in a water inlet of the volute, a plurality of water through holes are formed in one end of the crushing cutter, which is close to the volute, the other end of the crushing cutter is sealed, a plurality of macropores for passing through biogas residues and biogas slurry are formed in the side wall of the cutter barrel on at least one side of the macropores.

Further, the included angle is 2 degrees, the width of the strip-shaped hole is 5mm, and the length of the strip-shaped hole is 50mm.

Further, the suction pipe flange connection is installed at the water pumping port, one end of the suction pipe flange connection is connected with the pump shell and communicated with the inlet of the drainage channel, the other end of the suction pipe flange connection is connected with the suction pipe flange, one end of the suction pipe flange is connected with the water pumping straight pipe, the water outlet is connected with the discharge pipe flange, one end of the discharge pipe flange is connected with the pump shell and communicated with the inner cavity of the pump shell, and the other end of the discharge pipe flange is connected with the discharge straight pipe.

Further, a pressure relief opening is further formed in the pump shell, and a cap is arranged at the pressure relief opening.

The invention sets the breaking mechanism at the end of the output shaft of the petrol engine, integrates the breaking mechanism at the front side of the impeller in the pump shell, can rotate at high speed along with the impeller and break the small biogas residues and fibers entering from the water pumping port, has high integral integration level and compact structure and relatively lower manufacturing cost, and meanwhile, the breaking mechanism adopts the breaking cutter and the cutter barrel in an internal and external sleeved mode, and the breaking cutter and the cutter barrel are driven by the connecting stay bar and the planetary reduction mechanism, thereby realizing mutual rotation without contact between the breaking cutter and the cutter barrel, greatly reducing the abrasion between the breaking cutter and the cutter barrel, prolonging the service life of the breaking mechanism, reducing the failure rate and reducing the use and maintenance cost.

Drawings

FIG. 1 is a schematic view of a belt of the present invention in partial cross-section;

FIG. 2 is a schematic diagram of the structure of the crushing cutter according to the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1 at A;

fig. 4 is a schematic structural view of the present invention.

The drawing shows that the device comprises a 1-gasoline engine, a 2-connection base, a 3-pump shell, a 4-frame, a 5-sun gear, a 6-suction pipe flange, a 7-planet wheel, an 8-discharge pipe flange, a 9-impeller, a 10-volute, a 11-crushing cutter, a 12-cutter barrel, a 13-sealing cover plate, a 14-drainage channel, a 15-water passing hole, a 16-connecting stay bar, a 17-strip hole, a 18-blade, a 19-cap, a 20-discharge straight pipe, a 21-output shaft and a 22-planet gear disc.

Detailed Description

As shown in fig. 1 to 4, the water pump with the slag crushing function provided in this embodiment includes a frame 4, and a gasoline engine 1 and a water pump mounted on the frame 4, in this embodiment, the gasoline engine 1 may adopt an existing finished product structure, the water pump includes a pump housing 3, and a volute 10 and an impeller 9 disposed in the pump housing 3, and one end of an output shaft 21 of the gasoline engine 1 extends into the pump housing 3 and is connected with a crushing mechanism. In order to achieve the purpose of high crushing efficiency and small abrasion, the crushing mechanism comprises a crushing cutter 11 and a cutter barrel 12, the crushing cutter 11 is of a cylindrical body structure coaxial with the cutter barrel 12, the crushing cutter 11 is fixedly sleeved at the position, close to the end, of an output shaft 21 of the gasoline engine 1, the end of the output shaft 21 is connected with a stretcher rod 16 which is coaxial with the output shaft and stretches into an inner cavity of the crushing cutter 11, the cutter barrel 12 is sleeved on the outer end of the crushing cutter 11, the outer end is far away from one end of the gasoline engine 1, and a gap capable of rotating relatively is reserved between the cutter barrel 12 and the crushing cutter 11, and the gap range is 1-3 mm. The one end of the inner cavity of the cutter barrel 12, which is close to the outer end of the crushing cutter 11, is provided with a planetary reduction mechanism, specifically, one end of the inner cavity of the cutter barrel 12 is processed into a planetary gear disc 22, a sun gear 5 and at least two planetary gears 7 are mounted on the planetary gear disc 22, one end of the crushing cutter 11, which is close to the planetary reduction mechanism, is sealed, a sealing cover plate 13 for the planetary reduction mechanism is fixedly arranged in the inner cavity of the cutter barrel 12, the sun gear 5 and the planetary gears 7 are fixed with the sealing cover plate 13 through a wheel shaft, one end of a stretcher rod 16 penetrates out of the end sealing and sealing cover plate 13 of the crushing cutter 11 and is fixedly connected with the sun gear 5, when an output shaft 21 rotates, the crushing cutter 11 and the stretcher rod 16 rotate in a following manner, and the connecting stay rod 16 drives the sun gear 5 to rotate.

In order to improve the crushing efficiency, a plurality of strip-shaped holes 17 communicated with the inner cavity of the crusher cutter 11 are formed in the side wall of the crusher cutter 11, the strip-shaped holes 17 are parallel to each other, the length direction of each strip-shaped hole 17 and the axial direction of the crusher cutter 11 form an included angle, the range of the included angle is 2-5 degrees, preferably 2 degrees, in the embodiment, the width of each strip-shaped hole 17 is 5mm, the length is 50mm, the surface wall of the crusher cutter 11 on at least one side of each strip-shaped hole 17 forms a cutting edge 18, the strip-shaped holes 17 select the size and the unique cutting structural form, high-efficiency cutting can be performed in high-speed rotation, the injection amount of biogas slurry is moderate, the phenomenon that biogas residues are not crushed in time due to rapid injection of the biogas slurry is avoided, and finally the crushing cutting efficiency is low is caused.

The end face of one side of the volute 10 is fixed on the side wall of the pump shell 3, which is close to the gasoline engine 1, the end face of the other side of the volute 10 is provided with a water inlet, the volute 10 is also provided with a water outlet, the impeller 9 is positioned in the volute 10 and sleeved on an output shaft of the gasoline engine 1, one side of the pump shell 3, which is far away from the gasoline engine 1, is provided with a water pumping port, the top of the pump shell 3 is provided with a water outlet, a water draining channel 14 connected with the water pumping port and the water inlet of the volute 10 is formed in the pump shell 3, the crushing cutter 11 is positioned in the water draining channel 14, specifically, one end of the crushing cutter 11, which is provided with a cutting edge 18, is positioned in the water draining channel 14, the other end of the crushing cutter 11 is positioned in the water inlet of the volute 10, the end of the crushing cutter 11, which is close to the volute 10, is provided with a plurality of water through holes 15, gaps between the cutter 12 and the crushing cutter 11 are preferably 2mm, the water draining channel 14 and the water inlet of the volute 10 are exactly sealed and can rotate, a plurality of cutters are arranged on the side walls of the cutter 12, which are used for passing biogas residues and biogas residues, at least one side of the cutter surface wall forms cutting edges, and the biogas residues can enter the large holes through the large holes 17 and are fed into the strip-shaped cutter 10 through the large holes 17.

In order to ensure reliable output shaft connection of the gasoline engine 1, a connecting base 2 is arranged between the gasoline engine 1 and the pump shell 3, the connecting base 2 is sleeved on the output shaft of the gasoline engine 1 through a bearing, and two side end surfaces of the connecting base 2 are respectively connected with the gasoline engine 1 and the pump shell 3. The pump casing 3 is connected with a suction pipe flange 6 communicated with a drainage channel 14 at a water pumping port, a bent pipe type discharge pipe flange 8 is connected at a water outlet of the pump casing 3, one end of the discharge pipe flange 8 is connected with the pump casing 3 and communicated with an inner cavity of the pump casing 3, and the other end of the discharge pipe flange 8 is connected with a discharge straight pipe 20. Biogas slurry or biogas residue can enter the drainage channel 14 through the suction pipe flange 6, enter the volute 10 after being crushed, and then form a pressure difference by the centrifugal force generated by the impeller 9 to discharge the biogas slurry from the water outlet of the volute 10 into the pump shell 3, and finally discharge the biogas slurry from the discharge straight pipe 20, in order to prevent the excessive internal pressure of the pump shell 3, the lower part of the pump shell 3 is provided with a pressure relief opening, and the pressure relief opening is provided with a cap 19.

The working principle of the invention is that the output shaft of the gasoline engine 1 drives the impeller 9 and the crushing cutter 11 to rotate, when a sufficient pressure difference is formed, biogas slurry or biogas residue is sucked from a hose connected with the suction pipe flange 6 and enters the drainage channel 14, then the biogas slurry or biogas residue is pressed into the crushing cutter 11, and simultaneously the crushing cutter 11 and the cutter barrel 12 are crushed under the action of relatively high-speed rotary cutting, and the crushed biogas residue and biogas residue enter the volute 10 and are discharged into the pump shell 3, and finally are discharged from the discharge straight pipe 20.

The foregoing is merely a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and substitution based on the technical scheme and the inventive concept provided by the present invention should be covered in the scope of the present invention.

Claims

1. A water pump with a slag crushing function, comprising a frame, a gasoline engine and a water pump mounted on the frame, the gasoline engine being connected to the water pump, characterized in that the water pump comprises a pump casing, a volute and an impeller arranged in the pump casing, one end of the output shaft of the gasoline engine extends into the pump casing and is connected with a crushing mechanism, the crushing mechanism comprises a crushing cutter and a knife barrel, the crushing cutter is fixedly sleeved on a position near the end of the output shaft of the gasoline engine, the end of the output shaft of the gasoline engine is connected with a connecting rod which is coaxial with the output shaft and extends into an inner cavity of the crushing cutter, the knife barrel is sleeved on the outer end of the crushing cutter, and there is a relatively rotatable gap between the knife barrel and the crushing cutter, the gap range is 1-3 mm, and one end of the inner cavity of the knife barrel near the outer end of the crushing cutter is provided There is a planetary reduction mechanism, one end of the link rod passes through the crushing and cutting knife and is connected to the sun gear of the planetary reduction mechanism, a sealing cover plate for the planetary reduction mechanism is arranged in the inner cavity of the knife barrel, the volute is fixed on the side wall of the pump casing close to the gasoline engine, a water inlet is opened on one end face of the volute, and a drainage port is also arranged on the volute, the impeller is located in the volute and is sleeved on the output shaft of the gasoline engine, a connecting base is arranged between the gasoline engine and the water pump, the connecting base is sleeved on the output shaft of the gasoline engine through a bearing, and the end faces on both sides of the connecting base are respectively connected to the gasoline engine and the pump casing, a water suction port is opened on one side of the pump casing, a water outlet is opened on the other side, and a drainage channel connected to the water suction port and the water inlet of the volute is formed in the pump casing, and the crushing mechanism is located in the drainage channel;

The crushing and cutting knife is a cylindrical structure coaxial with the knife barrel, and a plurality of strip holes connected to the inner cavity of the crushing and cutting knife are opened on the side wall of the crushing and cutting knife, the plurality of strip holes are parallel to each other, and the length direction of the strip holes forms an angle with the axial direction of the crushing and cutting knife, and the angle ranges from 2° to 5°. The surface wall of the crushing and cutting knife on at least one side of the strip holes forms a blade, the cuttable end of the crushing and cutting knife is located in the drainage channel, and the other end is located in the water inlet of the volute, and a plurality of water holes are provided at one end of the crushing and cutting knife close to the volute, and the other end is sealed, and a plurality of large holes for passing biogas residue and biogas liquid are provided on the side wall of the knife barrel, and the surface wall of the knife barrel on at least one side of the large holes forms a blade;

A suction pipe flange connection is installed at the water suction port, one end of the suction pipe flange connection is connected to the pump casing and communicated with the drainage channel inlet, the other end of the suction pipe flange connection is connected to the suction pipe flange, one end of the suction pipe flange is connected to a water pumping straight pipe, the water outlet is connected to a discharge pipe flange, one end of the discharge pipe flange is connected to the pump casing and communicated with the inner cavity of the pump casing, and the other end of the discharge pipe flange is connected to a discharge straight pipe;

The pump housing is also provided with a pressure relief port, and a cap is provided at the pressure relief port.