CN209638016U - Low net positive suction head vertical shield pump - Google Patents

Abstract

The utility model discloses low net positive suction head vertical shield pumps, including canned motor pump main body, impeller chimney and protecting crust, the protecting crust is located at outside the bottom end of canned motor pump main body, the side of the protecting crust is rotatably connected to motor by shield, the upper end of the protecting crust is mutually fixedly connected by backing plate with impeller chimney, the upper surface of the impeller chimney is welded with the first communicating pipe and the second communicating pipe, and first the side of communicating pipe be communicated with output shaft, the side of second communicating pipe is communicated with input shaft, the inner cavity upper surface of the canned motor pump main body is equipped with impeller, the impeller includes vertical slot, axis, vane rings, baffle and pedestal, the pedestal is mounted on the bottom position of impeller, the upper end of the pedestal is connected with vane rings, and pass through barrier partitions between vane rings and pedestal.The utility model can help to carry out the liquid conveying of impeller, preferably complete work.

Description

Low net positive suction head vertical shield pump

Technical field

The utility model relates to technical field of industrial equipment, specially low net positive suction head vertical shield pump.

Background technique

The pump head and motor of canned motor pump are all closed in the pressure vessel that a pumped medium is full of, this pressure is held Device only has static seal.The impeller of canned motor pump and the rotor of motor are fixed on same axis, using housing by motor Rotor and stator separate, and rotor operates in transported medium, and power passes to rotor by stator field, but now Low net positive suction head vertical shield pump there is a problem of that impeller water guide efficiency is lower, need to improve.

Utility model content

The purpose of this utility model is to provide low net positive suction head vertical shield pumps, to solve to propose in above-mentioned background technique The problem of.

To achieve the above object, the utility model provides the following technical solutions: low net positive suction head vertical shield pump, including screen It covers pump main body, impeller chimney and protecting crust, the protecting crust to be located at outside the bottom end of canned motor pump main body, the side of the protecting crust is logical It crosses shield and is rotatably connected to motor, the upper end of the protecting crust is mutually fixedly connected by backing plate with impeller chimney, the impeller chimney Upper surface be welded with the first communicating pipe and the second communicating pipe, and the side of the first communicating pipe is communicated with output shaft, described second The side of communicating pipe is communicated with input shaft, and the inner cavity upper surface of the canned motor pump main body is equipped with impeller, the impeller include vertical slot, Axis, vane rings, baffle and pedestal, the pedestal are mounted on the bottom position of impeller, upper end and the vane rings phase of the pedestal Connection, and by barrier partitions between vane rings and pedestal, the upper end center position of the vane rings is connected with axis, The vertical slot is provided with the center side of axis, and the lower end of the impeller is rotatably connected to conveying axis, the lower end of the conveying axis It is connected with torque converter by the second transmission axle, the pendant positions of the torque converter pass through the first transmission axle and motor phase Connection, the two sides of the conveying axis offer the first cavity and the second cavity.

Preferably, the impeller is mutually flexibly connected by vertical slot and axis with impeller chimney inner tip.

Preferably, the vane rings and pedestal are all made of flexible connection setting.

Preferably, the pedestal bottom end of the impeller internal rotates with conveying axis connect.

Preferably, the impeller is located at the inner end of impeller chimney, and passes through the first communicating pipe and the with output shaft and input shaft Two communicating pipes were connected.

Preferably, the thickness of the impeller is adapted with the second connection bore width.

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

By installing motor, motor drives the first transmission axle rotation of inner end, makes second by torque converter later Transmission axle drives conveying axis to be rotated, since the top of conveying axis is connect with wheel rotation, so the work of impeller, makes The liquid that enter from input shaft, acceleration work is carried out by impeller, by output shaft discharge canned motor pump main body, and passes through the The setting of one cavity and the second cavity is conducive to the close of inner end so that conveying axis and the shell of outer end have preferable barriering effect It closes, by the setting of impeller upper end vertical slot and axis, can mutually be connected together with the shell of canned motor pump main body upper end, pass through bottom end The connection of pedestal and conveying axis drives the vane rings of center-side and baffle to be rotated, and baffle is using fan-shaped central distribution It is arranged, so that the liquid for preferably entering input shaft is discharged.

Detailed description of the invention

Fig. 1 is the agent structure schematic diagram of the utility model；

Fig. 2 is the canned motor pump main body top view of the utility model；

Fig. 3 is the canned motor pump main body front view of the utility model；

Fig. 4 is the canned motor pump main body side view of the utility model；

Fig. 5 is the canned motor pump body interior structural schematic diagram of the utility model；

Fig. 6 is the blade wheel structure schematic diagram of the utility model.

In figure: 1- canned motor pump main body, the first communicating pipe of 2-, 3- output shaft, 4- impeller chimney, 5- backing plate, 6- protecting crust, 7- electricity Machine, 8- shield, 9- input shaft, the second communicating pipe of 10-, 11- impeller, 12- conveying axis, the first cavity of 13-, the conversion of 14- torque Device, the first transmission axle of 15-, the second transmission axle of 16-, the second cavity of 17-, 18- vertical slot, 19- axis, 20- vane rings, 21- baffle, 22- pedestal.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-6 is please referred to, a kind of embodiment provided by the utility model: low net positive suction head vertical shield pump, including shielding Pump main body 1, impeller chimney 4 and protecting crust 6, protecting crust 6 are located at outside the bottom end of canned motor pump main body 1, and the side of protecting crust 6 passes through anti- Shield 8 is rotatably connected to motor 7, and the upper end of protecting crust 6 is fixedly connected by backing plate 5 with 4 phase of impeller chimney, the upper end of impeller chimney 4 Face is welded with the first communicating pipe 2 and the second communicating pipe 10, and the side of the first communicating pipe 2 is communicated with output shaft 3, the second communicating pipe 10 side is communicated with input shaft 9, and the inner cavity upper surface of canned motor pump main body 1 is equipped with impeller 11, and impeller 11 includes vertical slot 18, axis 19, vane rings 20, baffle 21 and pedestal 22, pedestal 22 are mounted on the bottom position of impeller 11, the upper end of pedestal 22 and vane rings 20 are connected, and are separated between vane rings 20 and pedestal 22 by baffle 21, the upper end center position of vane rings 20 and card Axis 19 is connected, and vertical slot 18 is provided with the center side of axis 19, and the lower end of impeller 11 is rotatably connected to conveying axis 12, conveying axis 12 lower end is connected with torque converter 14 by the second transmission axle 16, and the pendant positions of torque converter 14 pass through the first transmission Axis 15 is connected with motor 7, and the two sides of conveying axis 12 offer the first cavity 13 and the second cavity 17.

Impeller 11 is mutually flexibly connected by vertical slot 18 and axis 19 with 4 inner tip of impeller chimney, vane rings 20 and pedestal 22 It is all made of flexible connection setting, 22 bottom end of pedestal inside impeller 11 rotates with conveying axis 12 to be connect, by installing motor 7, Motor 7 drives the first transmission axle 15 rotation of inner end, makes the second transmission axle 16 drive conveying by torque converter 14 later Axis 12 is rotated, since the top of conveying axis 12 and impeller 11 are rotatablely connected, so the work of impeller 11, so that from defeated The liquid for entering the entrance of axis 9 carries out acceleration work by impeller 11, and impeller 11 is located at the inner end of impeller chimney 4, and with output shaft 3 and Input shaft 9 with the second communicating pipe 10 by being connected the first communicating pipe 2,10 internal diameter width of the thickness of impeller 11 and the second communicating pipe It is adapted, by the setting of 11 upper end vertical slot 18 and axis 19 of impeller, can mutually be connected to one with the shell of 1 upper end of canned motor pump main body It rises, by the connection of bottom end pedestal 22 and conveying axis 12, the vane rings 20 of center-side and baffle 21 is driven to be rotated, and baffle 21 are arranged using fan-shaped central distribution, so that the liquid for preferably entering input shaft 9 is discharged.

Working principle: for user by installation motor 7, motor 7 drives the first transmission axle 15 rotation of inner end, passes through later Torque converter 14 makes the second transmission axle 16 that conveying axis 12 be driven to be rotated, due to 11 turns of top and the impeller of conveying axis 12 Dynamic connection, so the work of impeller 11, so that carrying out acceleration work, In by impeller 11 from the liquid that input shaft 9 enters Be discharged canned motor pump main body 1 by output shaft 3, and by the setting of the first cavity 13 and the second cavity 17 so that conveying axis 12 with The shell of outer end has preferable barriering effect, is conducive to the closed of inner end, passes through setting for 11 upper end vertical slot 18 of impeller and axis 19 It sets, can mutually be connected together with the shell of 1 upper end of canned motor pump main body, by the connection of bottom end pedestal 22 and conveying axis 12, drive The vane rings 20 and baffle 21 of center-side are rotated, and baffle 21 is arranged using fan-shaped central distribution, so that more preferably Input shaft 9 is entered liquid discharge, complete work.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. low net positive suction head vertical shield pump, including canned motor pump main body (1), impeller chimney (4) and protecting crust (6), it is characterised in that: The protecting crust (6) is located at outside the bottom end of canned motor pump main body (1), and the side of the protecting crust (6) is rotated by shield (8) It is connected with motor (7), the upper end of the protecting crust (6) is mutually fixedly connected by backing plate (5) with impeller chimney (4), the impeller chimney (4) upper surface is welded with the first communicating pipe (2) and the second communicating pipe (10), and the side of the first communicating pipe (2) be communicated with it is defeated The side of shaft (3), second communicating pipe (10) is communicated with input shaft (9), the inner cavity upper surface of the canned motor pump main body (1) Equipped with impeller (11), the impeller (11) includes vertical slot (18), axis (19), vane rings (20), baffle (21) and pedestal (22), The pedestal (22) is mounted on the bottom position of impeller (11), and the upper end of the pedestal (22) is connected with vane rings (20), and Separated between vane rings (20) and pedestal (22) by baffle (21), the upper end center position of the vane rings (20) and card Axis (19) is connected, and the vertical slot (18) is provided with the center side of axis (19), the lower end rotation connection of the impeller (11) Have conveying axis (12), the lower end of the conveying axis (12) is connected with torque converter (14) by the second transmission axle (16), described The pendant positions of torque converter (14) are connected by the first transmission axle (15) with motor (7), and the two of the conveying axis (12) Side offers the first cavity (13) and the second cavity (17).

2. low net positive suction head vertical shield pump according to claim 1, it is characterised in that: the impeller (11) passes through vertical slot (18) it is mutually flexibly connected with axis (19) with impeller chimney (4) inner tip.

3. low net positive suction head vertical shield pump according to claim 1, it is characterised in that: the vane rings (20) and pedestal (22) it is all made of flexible connection setting.

4. low net positive suction head vertical shield pump according to claim 1, it is characterised in that: the internal bottom of the impeller (11) Seat (22) bottom end rotates with conveying axis (12) to be connect.

5. low net positive suction head vertical shield pump according to claim 1, it is characterised in that: the impeller (11) is located at impeller The inner end of (4) is covered, and by the first communicating pipe (2) and is connected the second communicating pipe (10) with output shaft (3) and input shaft (9).

6. low net positive suction head vertical shield pump according to claim 1, it is characterised in that: the thickness of the impeller (11) with Second communicating pipe (10) internal diameter width is adapted.