CN211737529U

CN211737529U - Single-stage centrifugal pump with long service life

Info

Publication number: CN211737529U
Application number: CN201922303287.6U
Authority: CN
Inventors: 汤志联
Original assignee: Longyan Pump Co ltd
Current assignee: Longyan Pump Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-23
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a single-stage centrifugal pump technical field just discloses a long service life's single-stage centrifugal pump, including the chassis, the top fixed mounting of chassis has the fixing base, the top fixed mounting of fixing base has driving motor, the top fixed mounting of chassis has the pump body. This long service life's single-stage centrifugal pump, through setting up driving motor, drive the connecting rod rotation back at driving motor by the shaft coupling, through fore bearing and rear bearing, and under the cooperation of ejector pin and fixed block, it is spacing to carry out the axial to the connecting rod, avoid the connecting rod skew about, and fore bearing and rear bearing are in damping spring's assistance, carry out the mechanical vibration buffering, reduce the impact to fore bearing and rear bearing, and fore bearing and rear bearing are under the cooperation of fixed block, it is radial spacing to carry out the connecting rod, avoid the connecting rod rotation translation to the pump body and connecting sleeve collision, cause the damage, long service life's purpose has been reached.

Description

Single-stage centrifugal pump with long service life

Technical Field

The utility model relates to a single-stage centrifugal pump technical field specifically is a long service life's single-stage centrifugal pump.

Background

The single-stage centrifugal pump comprises a pump body, a pump cover and a motor with an output shaft, wherein the pump shaft, a bearing seat, an impeller, a mechanical seal and a mechanical seal gland are arranged in the pump body and are connected with the motor through a lengthened elastic coupling, and the rotation direction of the pump is clockwise when viewed from a driving end.

At present, single-stage centrifugal pumps are connected with a pump body transmission rod through a coupler, but the transmission rod between the pump body and the coupler is in an empty state, so that the transmission rod is easy to axially or radially displace, a connecting piece in the pump body is abraded, the service life of the single-stage centrifugal pump is greatly shortened, and the single-stage centrifugal pump with long service life is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a long service life's single-stage centrifugal pump possesses advantages such as long service life, and the transfer line of having solved between the pump body and the shaft coupling is in one kind and soaks the state, and axial displacement or radial displacement appear very easily in the transfer line like this, lead to wearing and tearing to appear in the inside connecting piece of the pump body, have reduced single-stage centrifugal pump's life's problem greatly.

(II) technical scheme

In order to realize the purpose of long service life, the utility model provides a following technical scheme: a single-stage centrifugal pump with long service life comprises a bottom frame, wherein a fixed seat is fixedly arranged at the top of the bottom frame, a driving motor is fixedly arranged at the top of the fixed seat, a pump body is fixedly arranged at the top of the bottom frame, a shaft coupling is fixedly arranged on the outer side wall of an output shaft of the driving motor, a bracket is fixedly arranged at the top of the bottom frame, a connecting sleeve fixedly connected with the pump body is fixedly arranged at the top of the bracket, a connecting rod with one end extending to the inside of the connecting sleeve is fixedly arranged inside the shaft coupling, a front bearing sleeved with the connecting rod is fixedly arranged inside the connecting sleeve, a barrier strip is fixedly arranged inside the connecting sleeve, a fixed block meshed with the barrier strip and sleeved with the connecting rod is fixedly arranged inside the connecting sleeve, a rear bearing sleeved with the connecting rod is fixedly, a top rod is fixedly installed between the connecting sleeve and the front bearing and between the connecting sleeve and the rear bearing, a damping spring is sleeved on the outer side wall of the top rod, a water inlet is formed in the left side of the pump body, and a water outlet is formed in the top of the pump body.

Preferably, the bracket is a Y-shaped support rod, and the connecting sleeve is located between the two ends of the bracket.

Preferably, the front bearing is located at the right end of the connecting sleeve, and the rear bearing is located inside the connecting sleeve.

Preferably, the number of the barrier strips is four, and the barrier strips are uniformly distributed between the front bearing and the rear bearing.

Preferably, the outer side wall of the fixed block is provided with a groove, and the barrier strip is matched with the groove.

Preferably, the cross section of the ejector rod is I-shaped, the damping spring is sleeved at the transverse end of the ejector rod, and the damping spring is fixedly connected with the two vertical ends of the ejector rod.

(III) advantageous effects

Compared with the prior art, the utility model provides a long service life's single-stage centrifugal pump possesses following beneficial effect:

this long service life's single-stage centrifugal pump, through setting up driving motor, drive the connecting rod rotation back at driving motor by the shaft coupling, through front bearing and rear bearing, and under the cooperation of ejector pin and fixed block, it is spacing to carry out the axial to the connecting rod, avoid the connecting rod left and right sides skew, and front bearing and rear bearing are in damping spring's assistance, carry out the mechanical vibration buffering, reduce the impact to front bearing and rear bearing, and front bearing and rear bearing are under the cooperation of fixed block, it is radial spacing to the connecting rod, avoid the connecting rod rotation translation to the pump body and connecting sleeve collision, cause the damage, through such a mode, stabilize the relation of being connected between connecting rod and the pump body by establishing the connecting sleeve with adding, avoid driving motor to make the connecting rod transmission the skew phenomenon appear, long service life's purpose has been reached.

Drawings

FIG. 1 is a front view of the structure of the present invention;

fig. 2 is an enlarged view of the structure at a position of the present invention.

In the figure: 1 chassis, 2 fixing bases, 3 driving motors, 4 pump bodies, 5 couplers, 6 brackets, 7 connecting sleeves, 8 connecting rods, 9 front bearings, 10 barrier strips, 11 fixing blocks, 12 rear bearings, 13 ejector rods, 14 damping springs, 15 water inlets and 16 water outlets.

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. 1-2, a single-stage centrifugal pump with long service life comprises a bottom frame 1, a fixed seat 2 is fixedly installed at the top of the bottom frame 1, a driving motor 3 is fixedly installed at the top of the fixed seat 2, a pump body 4 is fixedly installed at the top of the bottom frame 1, a coupler 5 is fixedly installed on the outer side wall of an output shaft of the driving motor 3, a bracket 6 is fixedly installed at the top of the bottom frame 1, a connecting sleeve 7 fixedly connected with the pump body 4 is fixedly installed at the top of the bracket 6, the bracket 6 is a Y-shaped supporting rod, the connecting sleeve 7 is located between two ends of the bracket 6, a connecting rod 8 with one end extending into the connecting sleeve 7 is fixedly installed inside the coupler 5, a front bearing 9 sleeved with the connecting rod 8 is fixedly installed inside the connecting sleeve 7, the front bearing 9 is located at the right end of the connecting sleeve 7, a rear bearing 12 is, the number of the barrier strips 10 is four, the barrier strips 10 are uniformly distributed between a front bearing 9 and a rear bearing 12, a fixed block 11 which is meshed with the barrier strips 10 and is sleeved with a connecting rod 8 is fixedly arranged inside a connecting sleeve 7, a groove is formed in the outer side wall of the fixed block 11, the barrier strips 10 are matched with the groove, a rear bearing 12 which is sleeved with the connecting rod 8 is fixedly arranged inside the connecting sleeve 7, a push rod 13 is fixedly arranged between the connecting sleeve 7 and the front bearing 9 and the rear bearing 12, a damping spring 14 is sleeved on the outer side wall of the push rod 13, the cross section of the push rod 13 is in an I shape, the damping spring 14 is sleeved on the transverse end of the push rod 13, the damping spring 14 is fixedly connected with two vertical ends of the push rod 13, a water inlet 15 is formed in the left side of the pump body 4, a water outlet 16 is formed in the top of the pump body 4, and, through fore bearing 9 and rear bearing 12, and under the cooperation of ejector pin 13 and fixed block 11, it is spacing to carry out the axial to connecting rod 8, avoid skew about connecting rod 8, and fore bearing 9 and rear bearing 12 are at damping spring 14's assistance, carry out the mechanical oscillation buffering, reduce the impact to fore bearing 9 and rear bearing 12, and fore bearing 9 and rear bearing 12 are under the cooperation of fixed block 11, it is spacing to carry out radially to connecting rod 8, avoid connecting rod 8 rotation translation to the pump body 4 and connecting sleeve 7 collision, cause the damage, through such a mode, stabilize connecting relation between connecting rod 8 and the pump body 4 by establishing connecting sleeve 7 with adding, avoid driving motor 3 to make the transmission of connecting rod 8 the skew phenomenon appear, long service life's purpose has been reached.

To sum up, the single-stage centrifugal pump with long service life is characterized in that the driving motor 3 is arranged, after the driving motor 3 drives the connecting rod 8 to rotate through the coupler 5, the connecting rod 8 is axially limited through the front bearing 9 and the rear bearing 12 under the matching of the ejector rod 13 and the fixing block 11, so that the left and right deviation of the connecting rod 8 is avoided, the front bearing 9 and the rear bearing 12 are assisted by the damping spring 14 to perform mechanical vibration buffering, so that the impact on the front bearing 9 and the rear bearing 12 is reduced, the front bearing 9 and the rear bearing 12 are radially limited under the matching of the fixing block 11, so that the connecting rod 8 is prevented from colliding the pump body 4 and the connecting sleeve 7 due to autorotation translation of the connecting rod 8, and damage is caused, and through the mode, the connecting sleeve 7 is additionally arranged to stabilize the connection relation between the connecting rod 8 and the pump body 4, so that the driving motor 3 is prevented from, the purpose of long service life is achieved, and the problem that the transmission rod between the pump body and the coupler is in an empty state, so that the transmission rod is easy to axially or radially displace, the connecting piece in the pump body is abraded, and the service life of the single-stage centrifugal pump is greatly shortened is solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. A long service life's single-stage centrifugal pump, includes chassis (1), its characterized in that: the top fixed mounting of chassis (1) has fixing base (2), the top fixed mounting of fixing base (2) has driving motor (3), the top fixed mounting of chassis (1) has the pump body (4), the lateral wall fixed mounting of driving motor (3) output shaft has shaft coupling (5), the top fixed mounting of chassis (1) has bracket (6), the top fixed mounting of bracket (6) has connecting sleeve (7) with pump body (4) fixed connection, the inside fixed mounting of shaft coupling (5) has connecting rod (8) that one end extends to connecting sleeve (7) inside, the inside fixed mounting of connecting sleeve (7) has front bearing (9) that cup joints with connecting rod (8), the inside fixed mounting of connecting sleeve (7) has blend stop (10), the inside fixed mounting of connecting sleeve (7) has fixed block (11) that meshes with blend stop (10) and cup joints with connecting rod (8), the utility model discloses a pump, including connecting sleeve (7), fixed mounting have rear bearing (12) that cup joint with connecting rod (8), fixed mounting has ejector pin (13) between connecting sleeve (7) and front bearing (9) and rear bearing (12), damping spring (14) have been cup jointed to the lateral wall of ejector pin (13), water inlet (15) have been seted up in the left side of the pump body (4), delivery port (16) have been seted up at the top of the pump body (4).

2. A long-life single-stage centrifugal pump according to claim 1, characterized in that: the support frame (6) is a Y-shaped support rod, and the connecting sleeve (7) is located between the two ends of the support frame (6).

3. A long-life single-stage centrifugal pump according to claim 1, characterized in that: the front bearing (9) is positioned at the right end of the connecting sleeve (7), and the rear bearing (12) is positioned inside the connecting sleeve (7).

4. A long-life single-stage centrifugal pump according to claim 1, characterized in that: the number of the barrier strips (10) is four, and the barrier strips (10) are uniformly distributed between the front bearing (9) and the rear bearing (12).

5. A long-life single-stage centrifugal pump according to claim 1, characterized in that: the outer side wall of the fixed block (11) is provided with a groove, and the barrier strips (10) are matched with the groove.

6. A long-life single-stage centrifugal pump according to claim 1, characterized in that: the cross section of the ejector rod (13) is I-shaped, the damping spring (14) is sleeved at the transverse end of the ejector rod (13), and the damping spring (14) is fixedly connected with two vertical ends of the ejector rod (13).