CN210686438U

CN210686438U - Diffuser

Info

Publication number: CN210686438U
Application number: CN201921482610.4U
Authority: CN
Inventors: 张朝福
Original assignee: Nanjing Mujin Machinery Co Ltd
Current assignee: Nanjing Mujin Machinery Co Ltd
Priority date: 2019-09-07
Filing date: 2019-09-07
Publication date: 2020-06-05
Anticipated expiration: 2029-09-07

Abstract

The utility model discloses a diffuser, including the diffuser disk body, diffuser disk body one side is equipped with the installation piece, the installation piece passes through safety mechanism and diffuser disk body fixed connection, the diffuser disk body is equipped with the annular groove on keeping away from the plane lateral wall of installation piece, the matching is equipped with annular damping rubber piece in the annular groove, it has a plurality of first blades to wind the equipartition on the terminal surface that the diffuser disk body was kept away from to annular damping rubber piece, the matching is equipped with the damping rubber area in the annular groove, damping rubber area both ends are the wedge of matcing each other, damping rubber area passes through second stop gear and diffuser disk body fixed connection, a plurality of second blades of even fixedly connected with on the terminal surface that the diffuser disk body was kept away from to the damping rubber area. The utility model discloses can avoid the blade to receive the rigidity collision and damage when using, conveniently change the blade simultaneously, have safety mechanism moreover, when the diffuser blocks, avoid motor idle running to produce the harm.

Description

Diffuser

Technical Field

The utility model relates to a centrifugal pump technical field especially relates to a diffuser.

Background

The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates. A diffuser is often installed in the centrifugal pump to convert static pressure energy by means of kinetic energy, thereby realizing the function of the centrifugal pump.

However, the existing diffuser is relatively fixed and simple in structure, blades on the diffuser are directly fixed on a diffuser disc body, and are easy to collide with the blades when hard objects exist in fluid in the centrifugal process, the blades are easy to damage, and the whole diffuser needs to be replaced when the blades are damaged, so that waste is caused; meanwhile, when the diffuser is clamped, the motor is blocked from rotating, so that the motor is easily damaged, and great loss is caused.

To this end, we propose a diffuser to solve the above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a diffuser.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a diffuser comprises a diffuser disc body, wherein one side of the diffuser disc body is provided with a mounting block which is fixedly connected with the diffuser disc body through a safety mechanism, an annular groove is arranged on the planar side wall of the diffuser disc body far away from the mounting block, an annular damping rubber block is arranged in the annular groove in a matching way, a plurality of first blades are uniformly distributed on the end surface of the annular damping rubber block far away from the diffuser disc body in a surrounding way, the first blade is fixedly connected with an annular damping rubber block which is fixedly connected with the diffuser disc body through a first limiting mechanism, an annular slot is arranged on the arc-shaped side wall of the diffuser disc body, a damping rubber belt is arranged in the annular slot in a matching way, the two ends of the damping rubber belt are in a matched wedge shape, the damping rubber belt is fixedly connected with the diffuser disc body through a second limiting mechanism, and a plurality of second blades are uniformly and fixedly connected to the end face, far away from the diffuser disc body, of the damping rubber belt.

Preferably, first stop gear is including encircleing a plurality of first screw holes that set up on annular damping rubber piece, and is a plurality of the downthehole matching of first screw hole is equipped with first bolt, and is a plurality of first bolt all with diffuser disk body threaded connection.

Preferably, the second limiting mechanism comprises a plurality of second threaded holes uniformly distributed on the damping rubber belt, the positions of the two second threaded holes on the two ends of the damping rubber belt correspond to each other, and a second bolt is arranged in each second threaded hole in a matched mode and is connected with the disk body of the diffuser in a threaded mode.

Preferably, a plurality of first holding tanks that correspond with a plurality of first screw hole positions respectively are equipped with the equipartition on the annular damping rubber piece, the equipartition has a plurality of second holding tanks that correspond with a plurality of second screw hole positions respectively on the damping rubber area, the lower terminal surface diameter of first holding tank and second holding tank is greater than upper end opening diameter.

Preferably, the safety mechanism includes the first disk body with the coaxial fixed connection of diffuser disk body, installation piece fixedly connected with second disk body, first disk body offsets with the second disk body, the symmetry is equipped with two third screw holes on the second disk body, two the downthehole matching of third screw hole is equipped with plastics bolt spare, plastics bolt spare and first disk body threaded connection, be equipped with annular rupture groove on the plastics bolt spare.

Preferably, the annular damping rubber block is in interference contact with the annular groove, and the damping rubber belt is in interference contact with the annular groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. a plurality of first blades and a plurality of second blades are fixed on the diffuser disk body through annular damping rubber block and damping rubber area respectively, when there is hard thing in the fluid and the blade produces the collision, damping rubber's buffering effect can play the guard action, avoids the blade damage that the rigidity collision leads to, and annular damping rubber block and damping rubber area can be followed the diffuser disk body and dismantled simultaneously, do not need whole diffuser to change when appearing damaging.

2. Through setting up safety mechanism, when the diffuser was blocked, the motor still produced the rotation moment of torsion, and the outage can take place for the plastics bolt spare between first disk body and the second disk body this moment for the motor idleness avoids motor rotation to be obstructed to produce and damages, and the later stage is relieved and is blocked the problem and only need be changed plastics bolt spare can.

Drawings

Fig. 1 is a schematic front view of a diffuser according to the present invention;

fig. 2 is a schematic structural view of a damping rubber belt in a diffuser according to the present invention;

fig. 3 is a schematic side view of a diffuser according to the present invention.

In the figure: the novel diffuser comprises a diffuser disc body 1, a mounting block 2, a safety mechanism 3, an annular damping rubber block 4, a first blade 5, a damping rubber belt 6, a first limiting mechanism 7, a second limiting mechanism 8, a second blade 9, a first bolt 10, a first disc body 11, a second disc body 12, a plastic bolt 13 and a second bolt 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a diffuser comprises a diffuser body 1, a diffuser body is adopted, a mounting block 2 is arranged on one side of the diffuser body 1, the mounting block 2 is fixedly connected with a diffuser disc body 1 through a safety mechanism 3, the safety mechanism 3 comprises a first disc body 11 coaxially and fixedly connected with the diffuser disc body 1, the mounting block 2 is fixedly connected with a second disc body 12, the first disc body 11 is abutted against the second disc body 12, two third threaded holes are symmetrically arranged on the second disc body 12, plastic bolt pieces 13 are arranged in the two third threaded holes in a matching manner, the plastic bolt pieces 13 are in threaded connection with the first disc body 11, when the diffuser disc body 1 is clamped, the plastic bolt pieces 13 are broken due to large torque, damage caused by blocking of rotation of the motor is avoided, and the plastic bolt pieces 13 are provided with annular breaking grooves, so that the plastic bolt pieces 13 are broken conveniently.

Wherein, an annular groove is arranged on the planar side wall of the diffuser disc body 1 far away from the installation block 2, an annular damping rubber block 4 is arranged in the annular groove in a matching way, a plurality of first blades 5 are uniformly distributed on the end surface of the annular damping rubber block 4 far away from the diffuser disc body 1 in a surrounding way, the first blades 5 are fixedly connected with the annular damping rubber block 4, the first blades 5 play a role of protection when the first blades 5 are collided, the annular damping rubber block 4 is fixedly connected with the diffuser disc body 1 through a first limiting mechanism 7, the first limiting mechanism 7 comprises a plurality of first threaded holes arranged on the annular damping rubber block 4 in a surrounding way, first bolts 10 are arranged in the plurality of first threaded holes in a matching way, the plurality of first bolts 10 are all in threaded connection with the diffuser disc body 1, the annular damping rubber block 4 can be replaced, an annular slot is arranged on the arc-shaped side wall of the diffuser disc body 1, the two ends of the damping rubber belt 6 are in wedge shapes matched with each other, can be sleeved on the diffuser disc body 1 in a surrounding mode, and are convenient to take down.

Wherein the damping rubber belt 6 is fixedly connected with the diffuser disc body 1 through a second limiting mechanism 8, the second limiting mechanism 8 comprises a plurality of second threaded holes uniformly distributed on the damping rubber belt 6, two second threaded holes on two ends of the damping rubber belt 6 correspond in position and can fix the damping rubber belt 6 on the diffuser disc body 1 in a surrounding manner, second bolts 14 are arranged in the second threaded holes in a matching manner, the second bolts 14 are all in threaded connection with the diffuser disc body 1, the damping rubber belt 6 is convenient to disassemble, a plurality of first accommodating grooves corresponding to the first threaded holes respectively are uniformly distributed on the annular damping rubber block 4, a plurality of second accommodating grooves corresponding to the second threaded holes respectively are uniformly distributed on the damping rubber belt 6, the diameters of the lower end surfaces of the first accommodating grooves and the second accommodating grooves are larger than the diameters of the upper end openings, and the first accommodating grooves and the second accommodating grooves are both used for accommodating the bolts, meanwhile, the structure with a small upper part and a large lower part can seal the bolt to avoid fluid entering, the damping rubber belt 6 is uniformly and fixedly connected with a plurality of second blades 9 on the end surface far away from the diffuser disc body 1, the annular damping rubber block 4 is in interference contact with the annular groove, and the damping rubber belt 6 is in interference contact with the annular groove to increase the sealing property and avoid fluid entering.

In the utility model, the installation is carried out through the installation block 2, when the clamping problem occurs, the plastic bolt part 13 for connecting the first tray body 11 and the second tray body 12 can be broken, and the clamped diffuser body 1 can not block the rotation of the motor; when the diffuser is in work, when hard objects exist in fluid and collide with the first blade 5 and the second blade 9, the annular damping rubber block 4 and the damping insert belt 6 can play a role in buffering and protecting to avoid rigid collision, and meanwhile, the annular damping rubber block 4 and the damping rubber belt 6 can be detached, so that the integral diffuser is not required to be replaced when the diffuser is damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A diffuser comprises a diffuser body (1) and is characterized in that one side of the diffuser body (1) is provided with an installation block (2), the installation block (2) is fixedly connected with the diffuser body (1) through a safety mechanism (3), an annular groove is formed in the plane side wall of the diffuser body (1) far away from the installation block (2), an annular damping rubber block (4) is arranged in the annular groove in a matched mode, a plurality of first blades (5) are uniformly distributed on the end face, far away from the diffuser body (1), of the annular damping rubber block (4) in a surrounding mode, the first blades (5) are fixedly connected with the annular damping rubber block (4), the annular damping rubber block (4) is fixedly connected with the diffuser body (1) through a first limiting mechanism (7), an annular groove is formed in the arc-shaped side wall of the diffuser body (1), and a damping rubber belt (6) is arranged in the annular groove in a matched mode, damping rubber area (6) both ends are the wedge that matches each other, damping rubber area (6) are through second stop gear (8) and diffuser disk body (1) fixed connection, even fixedly connected with a plurality of second blades (9) on the terminal surface of diffuser disk body (1) are kept away from in damping rubber area (6).

2. The diffuser of claim 1, wherein the first limiting mechanism (7) comprises a plurality of first threaded holes circumferentially formed in the annular damping rubber block (4), a plurality of first threaded holes are formed in the first threaded holes in a matched mode, and a plurality of first bolts (10) are connected with the diffuser body (1) in a threaded mode.

3. A diffuser according to claim 2, wherein the second limiting mechanism (8) comprises a plurality of second threaded holes uniformly distributed on the damping rubber belt (6), two second threaded holes at two ends of the damping rubber belt (6) correspond in position, a second bolt (14) is matched and arranged in the second threaded holes, and the second bolts (14) are all in threaded connection with the diffuser body (1).

4. A diffuser according to claim 3, wherein a plurality of first receiving grooves corresponding to the first screw holes are uniformly formed in the annular damping rubber block (4), a plurality of second receiving grooves corresponding to the second screw holes are uniformly formed in the damping rubber belt (6), and the diameters of the lower end surfaces of the first receiving grooves and the second receiving grooves are larger than the diameter of the opening at the upper end.

5. A diffuser according to claim 1, wherein the safety mechanism (3) comprises a first tray body (11) coaxially and fixedly connected with the tray body (1) of the diffuser, the mounting block (2) is fixedly connected with a second tray body (12), the first tray body (11) abuts against the second tray body (12), two third threaded holes are symmetrically formed in the second tray body (12), plastic bolt pieces (13) are matched and arranged in the two third threaded holes, the plastic bolt pieces (13) are in threaded connection with the first tray body (11), and annular breaking grooves are formed in the plastic bolt pieces (13).

6. A diffuser according to claim 1, wherein said annular damping rubber block (4) is in interference contact with the annular groove and said damping rubber band (6) is in interference contact with the annular slot.