阅读说明：本技术 一种便于卸换混流泵的切割装置 (Cutting device convenient to unload and trade mixed flow pump ) 是由 万代祥 万超 张鑫麟 于 2020-06-24 设计创作，主要内容包括：本发明公开了混流泵技术领域的一种便于卸换混流泵的切割装置,包括进口管、叶轮和轮毂,针对现有技术中流体容易产生一些障碍物,如塑料、泥块等垃圾,这些异物如果不及时处理会缠在叶轮上对叶轮进行损坏,严重时会造成进口管堵塞,甚至电机烧毁,造成不必要的损失,本发明针对这一问题,研发出一种便于卸换混流泵的切割装置,可以有效提高混流泵清污能力,使流道保持畅通,防止堵塞。(The invention discloses a cutting device convenient for replacing a mixed flow pump, which belongs to the technical field of mixed flow pumps and comprises an inlet pipe, an impeller and a hub.)

1. The utility model provides a cutting device convenient to change mixed flow pump unloads, includes rim plate casing (1), its characterized in that: the front end face of the shell (1) is provided with a threaded cap (2) for fixation, a wheel shaft matched with the threaded cap (2) penetrates through the wheel disc shell (1), the threaded cap (2) is in threaded connection with the wheel disc (1), a fixing block (3) is fixedly connected to the outer side of the threaded cap (2), a baffle (4) is fixedly connected to the front end face of the threaded cap (2), the wheel shaft matched with the threaded cap (2) penetrates through the baffle (4) and is in sliding connection with the baffle (4), a supporting rod (7) is fixedly connected to the lower side of the baffle (4), blades (5) are fixedly connected to the outer side of the baffle (4), and the other ends of the blades (5) are fixedly connected with second clamping blocks (6) corresponding to the inner cavity of the wheel disc shell (1) and are in sliding connection with the inner cavity of the wheel disc shell (1).

2. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: the supporting rod (7) comprises a plurality of flow deflectors (9) arranged around the outer side of the lower end of the supporting rod, the upper bottom edges of the flow deflectors (9) are fixed on the inner wall of the wheel disc shell (1), and flow guiding caps (8) are arranged at the bottom ends of the flow deflectors (9).

3. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: the angle of the one-time rotation of the fixing block (3) is 90 degrees, and the fixing block (3) is symmetrically fixed on the outer side of the threaded cap (2).

4. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: the flow deflector (9) is a right-angle trapezoidal thin plate, and the inlet edge of the flow deflector (9) is perpendicular to the central axis of the inlet pipe and is subjected to rounding treatment.

5. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: the number of the flow deflectors (8) is 4-5, and the thickness is not more than 10 mm.

6. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: and one end of the blade (5) close to the outlet edge of the flow deflector (8) is welded into a whole.

7. The cutting device for facilitating the replacement of a mixed flow pump as claimed in claim 1, wherein: the blade (5) is made of stainless steel with high strength, wear resistance and corrosion resistance.

Technical Field

The invention relates to the technical field of mixed flow pumps, in particular to a cutting device convenient for replacing a mixed flow pump.

Background

The mixed flow pump is a pump between a centrifugal pump and an axial flow pump, and has a higher lift than the axial flow pump but a smaller flow rate than the axial flow pump and a larger flow rate than the centrifugal pump. Traditional mixed flow pump is when carrying the medium through the impeller, and difficult to avoid can have some solids in the fluid, rubbish such as plastics, paper, clod, these fixed rubbish can twine on the impeller carrying out timely processing, can cause the import pipe to block up when serious, lead to the motor to burn out, cause unnecessary economic loss. In the prior art, the partial impeller that uses at present, it is inconvenient very much when needing to dismantle maintenance or change the blade, and need professional maintainer just can maintain, it is also extravagant time very much to dismantle, and need professional repair tools, the cost of maintenance has also been increased to a certain extent to the maintenance, it is also very troublesome when partial impeller is pulled down from the shaft in addition, the dismantlement process is wasted time and energy, when wasting time, also delayed the normal use of impeller, consequently, provide a cutting device convenient to dismantle the mixed flow pump to above-mentioned problem.

Disclosure of Invention

The invention aims to provide a cutting device convenient for replacing a mixed flow pump, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cutting device convenient to unload and trade mixed flow pump, includes the rim plate casing, the preceding terminal surface of casing is equipped with the screw cap fixed, and runs through the rim plate casing with the shaft that the screw cap matches, screw cap and rim plate screwed connection, screw cap outside fixedly connected with fixed block, terminal surface fixedly connected with baffle before the screw cap, run through the baffle with the shaft that matches with the screw cap to in baffle sliding connection, baffle below fixedly connected with bracing piece, the outside fixedly connected with blade of baffle, the other end of blade are decided and are connected the second fixture block that corresponds at rim plate casing inner chamber to with rim plate casing inner chamber sliding connection.

Preferably, the support rod comprises a plurality of flow deflectors arranged around the outer side of the lower end of the support rod, the upper bottom edges of the flow deflectors are fixed on the inner wall of the wheel disc shell, and flow guide caps are arranged at the bottom ends of the flow deflectors.

Preferably, the fixed block rotates at one time by 90 degrees, and the fixed block is symmetrically fixed on the outer side of the threaded cap.

Preferably, the guide vane is a right-angle trapezoidal thin plate, and the inlet edge of the guide vane is perpendicular to the central axis of the inlet pipe and is subjected to rounding treatment.

Preferably, the number of the flow deflectors is 4-5, and the thickness of the flow deflectors is not more than 10 mm.

Preferably, one end of each blade close to the outlet edge of the guide vane is welded into a whole.

Preferably, the material of the blade is stainless steel with high strength, wear resistance and corrosion resistance.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the impeller, the fixed block is arranged, the arrangement is matched with the sliding connection between the fixed block and the wheel disc, the spiral connection between the threaded sleeve and the wheel disc and the control of the baffle, so that the baffle and the threaded sleeve can rotate through the fixed block, then the impeller is taken down through the clamping groove, the impeller is taken down conveniently, the time required by disassembly is greatly saved, and the follow-up maintenance progress is accelerated.

2. The guide cap with the guide vane is arranged at the inlet pipe, so that the functions of drainage and flow stabilization are achieved, the cutting capability of the mixed flow pump impeller is enhanced, the passing rate of the mixed flow pump during pollution discharge is improved, the flow channel is kept smooth, and blockage is prevented; the cutting blade and the mixed flow pump impeller are welded into a whole, the structure is simple, and the replacement is easy.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an internal view of the present invention.

In the figure: 1. a wheel disc housing; 2. a threaded cap; 3. a fixed block; 4. a baffle plate; 5. a blade; 6, a second fixed block; 7. a support bar; 8. a flow guide cap; 9. and a flow deflector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a cutting device convenient for replacing a mixed flow pump comprises a wheel disc shell 1, a threaded cap 2 is arranged on the front end face of the shell 1 for fixing, the operation is stable, the disassembly is convenient, and the wheel shaft matched with the screw cap 2 penetrates through the wheel disc shell 1 to better fix the parts of the wheel disc shell so that the wheel disc shell cannot easily fall off, the threaded cap 2 is spirally connected with the wheel disc 1, the outer side of the threaded cap 2 is fixedly connected with a fixed block 3, the front end surface of the threaded cap 2 is fixedly connected with a baffle 4, the axle matched with the threaded cap 2 penetrates through the baffle 4, and is connected with the baffle 4 in a sliding way, a support rod 7 is fixedly connected below the baffle 4, the impact under high pressure is supported powerfully, the outer side of the baffle 4 is fixedly connected with a blade 5, and the other end of the blade 5 is fixedly connected with a second clamping block 6 corresponding to the inner cavity of the wheel disc shell 1 and is in sliding connection with the inner cavity of the wheel disc shell 1.

Referring to fig. 2, the support rod 7 includes a plurality of flow deflectors 9 disposed around the outer side of the lower end, the upper bottom edges of the flow deflectors 9 are fixed to the inner wall of the wheel disc housing 1, a flow guiding cap 8 is disposed at the bottom end of the flow deflectors 9, the main body of the flow guiding cap 8 is in the shape of a long cylinder, and the water inlet end is in the shape of a hemisphere.

Wherein, the disposable pivoted angle of fixed block 3 is 90, and fixed block 3 symmetry is fixed in the screw cap 2 outsides, and the scientific angle can be better practices thrift electric power.

The flow deflector 9 is a right-angle trapezoidal thin plate, and the inlet edge of the flow deflector 9 is perpendicular to the central axis of the inlet pipe and is subjected to rounding treatment, so that accidental touch injury to people is prevented.

The number of the flow deflectors 8 is 4-5, the thickness is not more than 10mm, and the flow deflectors are scientifically metered and convenient to replace.

Wherein, the one end welding as an organic whole that blade 5 is close to 8 exit sides of water conservancy diversion piece, and the integral operation is more handy.

The blade 5 is made of stainless steel with high strength, wear resistance and corrosion resistance, and the service life is prolonged.

The working principle is as follows: when blade 5 needs the maintenance to be changed, make screw cap 2 take place anticlockwise ninety degrees angle rotation through fixed block 3 earlier, take off the fixed block on baffle 4, directly take off this moment whole blade 5 can, take off the second fixed block 6 of connecting on the bracing piece 7 after that, can directly take off bracing piece 7, this thing needs the water conservancy diversion piece 9 behind the bracing piece 7 carefully, in order to avoid hindering one's hand, if water conservancy diversion piece 9 or water conservancy diversion cap 8 damage, screw after unscrewing water conservancy diversion piece 9, can change, high convenience and fast, use is not delayed, the maintenance duration is reduced.

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