CN212479683U

CN212479683U - Impeller clearance adjustment mechanism

Info

Publication number: CN212479683U
Application number: CN202020813593.4U
Authority: CN
Inventors: 吴永旭; 刘玉莹
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai East Pump Group Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-02-05
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses an impeller clearance guiding mechanism, including the pump body, the delivery port has been seted up at the lateral wall middle part of the pump body, and the one end of delivery port has been seted up the impeller and has been rotated the cabin, and the impeller rotates the inboard fixed mounting and has the impeller, and the end department of impeller still fixes the cover and is equipped with the impeller nut, and the end of impeller nut alternates with the one end of impeller to be connected, and impeller back middle part fixed mounting has the pump shaft, and the axle sleeve has been cup jointed on the middle part surface of pump shaft, and the one end fixed mounting of axle sleeve has the: the impeller nut, the pump cover, the shaft sleeve and the pump shaft that are equipped with are convenient for utilize the impeller nut to adjust end department position, are convenient for finely tune the flexible length of pump shaft, improve the availability factor to the pump shaft, increase the waterproof nature of this pump body impeller through the pump cover and the shaft sleeve that are equipped with, are convenient for avoid the water seepage to advance axis of rotation department in daily use.

Description

Impeller clearance adjustment mechanism

Technical Field

The utility model relates to a centrifugal pump field, in particular to clearance adjustment mechanism of impeller.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell.

The shaft seal of the traditional centrifugal pump has a packing seal and a mechanical seal, but the shaft seals have a use requirement, namely, the pressure of fluid at a sealing part is reduced, the safe operation of the seal is ensured by reducing the pressure of the fluid at the sealing part, the shaft seals cannot be used for conveying corrosive liquid of solid particles and suspended impurities, once the conveyed liquid is corrosive and has particle impurities, the mechanical seal is abraded, a bearing is damaged, the shutdown and production stop bring economic losses, and the application range of the centrifugal pump is limited. The back cover plate of the impeller is provided with the auxiliary blade, so that the axial force can be balanced, the pressure of a sealing cavity is reduced, and particles are prevented from entering a sealing part.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller clearance guiding mechanism, the shaft seal of the traditional centrifugal pump who proposes in solving above-mentioned background art has the packing seal, mechanical seal, but these shaft seals all have an operation requirement, exactly will decompress to the fluid at sealed position, through reducing the fluidic pressure at sealed position, thereby guarantee sealed safe operation, and can not be used for carrying the corrosive liquids of solid particle and suspended impurity, in case have corrosivity in the liquid of carrying, there are particle impurity etc., can cause the mechanical seal abrasion, the bearing damages, so that the problem of economic loss is brought in the shut down and shut down production.

In order to achieve the above object, the utility model provides a following technical scheme: an impeller clearance adjusting mechanism comprises a pump body, wherein a water outlet is formed in the middle of the side wall of the pump body, an impeller rotating cabin is formed in one end of the water outlet, an impeller is fixedly installed in the impeller rotating cabin, an impeller nut is fixedly sleeved at the end of the impeller, and the end of the impeller nut is inserted and connected with one end of the impeller;

the impeller back middle part fixed mounting has the pump shaft, the axle sleeve has been cup jointed on the middle part surface of pump shaft, the one end fixed mounting of axle sleeve has the lock washer, the roller has still been cup jointed to the one end of lock washer, the thread groove has been seted up on the surface of commentaries on classics roller, the internal thread interlude of thread groove is equipped with changes the roller, the surface of changeing the roller is provided with the connection roller.

As a preferred technical scheme of the utility model, the water inlet has been seted up at pump body shell's top, the top surface of water inlet is provided with the flange, the bottom of flange cup joints fixedly with the surface of water inlet.

As a preferred technical scheme of the utility model, the one end fixed mounting of impeller has the pump cover, the one end of pump cover is rabbeted fixedly with the middle part of the pump body, the circular shape mounting hole has been seted up at the middle part of pump cover, the pump shaft passes the middle part of axle sleeve and alternates with the first bearing that the axle sleeve is inside to be set up and is connected, the end department of pump shaft has cup jointed round nut, the one end fixed mounting of round nut has lock washer.

As an optimal technical scheme of the utility model, the end department scarf joint of lock washer is equipped with the second bearing, the one end fixed mounting of second bearing has the axis of rotation, the one end fixed mounting of axis of rotation has the shaft coupling.

As an optimized technical scheme of the utility model, the bottom middle part fixed mounting of the pump body has the base.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an impeller clearance guiding mechanism: through the impeller nut that is equipped with, the pump cover, axle sleeve and pump shaft are convenient for utilize the impeller nut to adjust end department position, be convenient for finely tune the flexible length of pump shaft, improve the availability factor to the pump shaft, increase the waterproof nature of this pump body impeller through the pump cover and the axle sleeve that are equipped with, be convenient for in daily use, avoid the water seepage to advance axis of rotation department, the impeller nut of setting is convenient for the seal between the direct adjustment pump cover, be convenient for in daily use through the lock washer that is equipped with, the convenience is adjusted the position of this water inlet, the realization is to the change in the impeller position.

Drawings

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

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the shaft sleeve of the present invention;

fig. 4 is a schematic diagram of the pump shaft structure of the present invention.

In the figure: 1. a pump body; 2. an impeller nut; 3. an impeller rotation compartment; 4. a pump cover; 5. a shaft sleeve; 6. a pump shaft; 7. a round nut; 8. a stop washer; 9. a water inlet; 10. a second bearing; 11. a rotating shaft; 12. a water outlet; 13. a base; 14. an impeller.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides an impeller clearance adjusting mechanism, which comprises a pump body 1, wherein the middle part of the side wall of the pump body 1 is provided with a water outlet 12, one end of the water outlet 12 is provided with an impeller rotating cabin 3, an impeller 14 is fixedly arranged in the impeller rotating cabin 3, the end head of the impeller 14 is also fixedly sleeved with an impeller nut 2, and the end head of the impeller nut 2 is connected with one end of the impeller 14 in a penetrating way;

14 back middle part fixed mounting of impeller has pump shaft 6, and the middle part surface of pump shaft 6 has cup jointed axle sleeve 5, and the one end fixed mounting of axle sleeve 5 has lock washer 8, and lock washer 8 one end has still cup jointed changes the roller, and the thread groove has been seted up on the surface of changeing the roller, and the internal thread interlude of thread groove is equipped with changes the roller, and the surface of changeing the roller is provided with the connection roller.

Preferably, the water inlet 9 has been seted up at the top of the shell of the pump body 1, and the top surface of water inlet 9 is provided with the flange, and the bottom of flange cup joints fixedly with the surface of water inlet 9.

Specifically, the water inlet 9 and the flange that are equipped with are convenient for the user of service and are installed the aqueduct with water inlet 9 department to realize quick transportation with the water and handle in the use, improve the carrying capacity of water, and in order to guarantee taking out fast of water in daily use, the user can adjust the position change of pump shaft 6, so that in the use, improve the pivoted position to the axis body.

Preferably, the one end fixed mounting of impeller 14 has pump cover 4, and the one end of pump cover 4 is fixed with the middle part scarf joint of the pump body 1, and the circular shape mounting hole has been seted up at the middle part of pump cover 4, and pump shaft 6 passes the middle part of axle sleeve 5 and alternates with the inside first bearing that sets up of axle sleeve 5 and be connected, and the end department of pump shaft 6 has cup jointed round nut 7, and the one end fixed mounting of round nut 7 has lock washer 8.

Specifically, in order to ensure the engagement and stability of the pump shaft 6 and prevent unnecessary displacement in position during daily use, the shaft sleeve 5 can be engaged and fixed by means of the round nut 7 and the lock washer 8 provided at the end, and the lock washer 8 and the round nut 7 are used to improve the engagement capability of the lock washer 8 and prevent unnecessary displacement in position of the pump shaft 6 during operation.

Preferably, a second bearing 10 is embedded at the end of the stop washer 8, a rotating shaft 11 is fixedly installed at one end of the second bearing 10, and a coupler is fixedly installed at one end of the rotating shaft 11.

Specifically, during daily use, the second bearing 10 is used to facilitate the rotation and articulation of the pump shaft 6 during use, so as to facilitate the driving of the inner impeller 14 to achieve high-speed rotation under the driving action of the external motor.

Preferably, the middle part of the bottom end of the pump body 1 is fixedly provided with a base 13.

Specifically, the pump body 1 is convenient to support and fix through the base 13, and the supporting and fixing capacity of the pump body 1 is improved.

When the impeller pump is used specifically, in the assembling process of a user, the round nut 7 is sleeved and locked on the pump shaft 6, then the user needs to sleeve the movable washer 8, the shaft sleeve 5, the impeller 14 and the round nut 7 once, the gap between the back of the impeller 14 and the pump cover 4 is detected manually after assembly is finished, if the gap is too small, the impeller nut 2 is unscrewed, then the impeller 14 and the pump shaft 6 and the round nut 7 on the back move forwards, then the position of the movable washer 8 moves forwards to move the position of the rotating shaft 11 forwards, and the specified gap interval requirement is met.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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.

Claims

1. The impeller clearance adjusting mechanism comprises a pump body (1) and is characterized in that a water outlet (12) is formed in the middle of the side wall of the pump body (1), an impeller rotating cabin (3) is formed in one end of the water outlet (12), an impeller (14) is fixedly installed in the impeller rotating cabin (3), an impeller nut (2) is fixedly sleeved at the end of the impeller (14), and the end of the impeller nut (2) is connected with one end of the impeller (14) in a penetrating mode;

impeller (14) back middle part fixed mounting has pump shaft (6), axle sleeve (5) have been cup jointed on the middle part surface of pump shaft (6), the one end fixed mounting of axle sleeve (5) has lock washer (8), the roller has still been cup jointed to the one end of lock washer (8), the thread groove has been seted up on the surface of changeing the roller, the internal thread interlude of thread groove is equipped with changes the roller, the surface of changeing the roller is provided with the connection roller.

2. The wheel clearance adjustment mechanism of claim 1, wherein: the water inlet (9) has been seted up at the top of the pump body (1) shell, the top surface of water inlet (9) is provided with the flange, the bottom of flange cup joints fixedly with the surface of water inlet (9).

3. The wheel clearance adjustment mechanism of claim 1, wherein: the one end fixed mounting of impeller (14) has pump cover (4), the one end of pump cover (4) is fixed with the middle part scarf joint of the pump body (1), the circular shape mounting hole has been seted up at the middle part of pump cover (4), pump shaft (6) pass the middle part of axle sleeve (5) and alternate with the inside first bearing that sets up of axle sleeve (5) and be connected, round nut (7) have been cup jointed to the end department of pump shaft (6), the one end fixed mounting of round nut (7) has lock washer (8).

4. The wheel clearance adjustment mechanism according to claim 3, wherein: the end of lock washer (8) is located the scarf joint and is equipped with second bearing (10), the one end fixed mounting of second bearing (10) has axis of rotation (11), the one end fixed mounting of axis of rotation (11) has the shaft coupling.

5. The wheel clearance adjustment mechanism of claim 1, wherein: the bottom middle part of the pump body (1) is fixedly provided with a base (13).