CN211397942U - Connecting structure of pump shaft of submersible pump for well - Google Patents

Abstract

The utility model relates to a connection structure, especially, be a connection structure of immersible pump shaft for well, including shell body, the dive pump body, motor case and support base, the bottom fixed mounting of shell body has the support base, the shell body includes the dive pump body, motor case, the dive pump body and motor case pass through water ring fixed connection, and the water ring cover establishes the middle section at the shell body, be provided with the filter screen structure on the water ring, the inside fixed mounting of the dive pump body has the impeller frame, the inside of impeller frame is run through and is provided with the impeller shaft, be close to impeller frame department fixed mounting and have a plurality of groups impeller blade on the impeller shaft, impeller shaft and motor case pass through pump shaft fixed connection, be provided with the sealing washer between impeller frame and the pump shaft, and the impeller shaft passes the sealing washer, the utility model discloses the overall device simple structure not only conveniently is to the installation of impeller shaft and pump, The disassembly and the replacement of the impeller shaft also have excellent stability and certain popularization effect.

Description

Connecting structure of pump shaft of submersible pump for well

Technical Field

The utility model relates to a connection structure specifically is a connection structure of immersible pump shaft for well.

Background

The submersible pump is an important device for pumping water from a deep well, when in use, the whole unit is submerged into water to work, underground water is pumped to the ground surface, the unit is domestic water, mine emergency, industrial cooling, farmland irrigation, seawater lifting and ship load adjustment, the unit can also be used for fountain landscape, and before in use, the instruction must be read first, the unit cannot be mistaken and is not used for a long time, the impeller must be rotated before in use, otherwise the impeller is burnt without being stuck for a long time, before the pump is started, the suction pipe and the pump must be filled with liquid, after the pump is started, the impeller rotates at high speed, the liquid in the unit rotates along with the blades, the liquid flies away from the impeller to be ejected outwards under the action of centrifugal force, the speed of the ejected liquid in a pump shell diffusion chamber gradually slows down, the pressure is gradually increased, then the liquid flows out from the pump outlet and the discharge pipe, and at the center of the blades, the liquid is thrown to the periphery to, the liquid in the liquid pool flows into the pump through the suction pipe under the action of the atmospheric pressure of the pool surface, the liquid is continuously sucked from the liquid pool and continuously flows out from the discharge pipe, the existing pump shaft and the impeller shaft adopt an integral fixed connection mode, although the stability is good, the impeller shaft is inconvenient to replace, the maintenance is inconvenient, the self-acting loss is large, and therefore a connection structure of the pump shaft of the submersible pump for the well is needed to improve the problems.

Disclosure of Invention

An object of the utility model is to provide a connection structure of immersible pump shaft for well to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a connecting structure of a pump shaft of a submersible pump for a well comprises an outer shell, a submersible pump body, a motor box and a supporting base, wherein the supporting base is fixedly installed at the bottom of the outer shell, the outer shell comprises the submersible pump body and the motor box, the submersible pump body and the motor box are fixedly connected through a water inlet ring, the water inlet ring is sleeved at the middle section of the outer shell, a filter screen structure is arranged on the water inlet ring, a vane carrier is fixedly installed inside the submersible pump body, an impeller shaft penetrates through the impeller carrier, a plurality of groups of impeller blades are fixedly installed on the impeller shaft close to the vane carrier, the impeller shaft and the motor box are fixedly connected through a pump shaft, a sealing ring is arranged between the impeller carrier and the pump shaft, the impeller shaft penetrates through the sealing ring, a mounting groove is formed in the pump shaft, the bottom end of the impeller shaft extends to the inside of the mounting groove, three groups of equidistant fixed limiting blocks are, the fixed limiting block is in threaded connection with the impeller shaft, a shell cover is fixedly mounted at the top of the shell body, handles are fixedly mounted at two ends of the shell cover, and a water outlet is formed in the top of the shell cover.

Preferably, the outer housing is custom made of stainless steel.

Preferably, the motor case and the support base are integrally formed by stretching.

Preferably, the direction of the thread is opposite to the direction of rotation of the pump shaft.

Preferably, the impeller blade and the impeller shaft are fixedly connected by electric welding.

Preferably, the pump shaft and the impeller shaft are both made of titanium alloy in a customized mode.

Preferably, the water inlet ring is fixedly connected with the submersible pump body and the motor box through fixing bolts.

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

1. the utility model discloses in, during the use, insert the inside to the mounting groove with the impeller shaft bottom that sets up, and inlay the fixed stopper that sets up three equidistance of group near mounting groove department and pass through screw thread screwed connection with the fixing, thereby accomplish the erection joint operation of impeller shaft and pump shaft, and through the mounting groove that sets up, fixed stopper and threaded connection structure not only make things convenient for the installation to impeller shaft and pump shaft, dismantle and to the change of impeller shaft, still have splendid stability, and simultaneously, can effectually prevent through the sealing washer that sets up between impeller frame and pump shaft that water from entering into to the inside of pump shaft through the gap between the two, reach waterproof effect, in this while, all adopt the titanium alloy customization to form impeller shaft and pump shaft, utilize the physical properties of titanium alloy self to make it have the high hardness, thereby reach and reduce its acting loss.

2. The utility model discloses in, during the use, the ring of intaking through setting conveniently expandes the outer casing for the dive pump body and motor case on the one hand, and the maintenance for both provides convenience, on the other hand is convenient to intake ring self and is dismantled, regularly clear up the rubbish that covers on it, it can filter the large granule impurity of aquatic to be provided with the filter screen structure on the ring to intake simultaneously, thereby ensure its quality of water, simultaneously through the support pedestal greatly increased integrated device's that sets up stability, the vibration that produces the motor case during operation has the effect of a buffering, herein simultaneously, handle through fixed mounting at the cap both ends conveniently removes integrated device.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the submersible pump body of the present invention;

FIG. 3 is an enlarged schematic view of the impeller frame of the present invention;

in the figure: the device comprises a shell 1, a submersible pump body 2, a motor case 3, a support base 4, a water inlet ring 5, a filter screen structure 6, a shell cover 7, a handle 8, a water outlet 9, a pump shaft 10, an impeller shaft 11, a fixed limiting block 12, a mounting groove 13, a sealing ring 14, a thread 15, an impeller frame 16 and an impeller blade 17.

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. 1-3, the present invention provides a technical solution:

the utility model provides a connection structure of immersible pump shaft for well, includes shell body 1, the dive pump body 2, motor case 3 and support base 4, the bottom fixed mounting of shell body 1 has support base 4, shell body 1 includes the dive pump body 2, motor case 3, the dive pump body 2 and motor case 3 are through intaking ring 5 fixed connection, and intake ring 5 cover establishes the middle section at shell body 1, it is provided with filter screen structure 6 to intake to encircle 5, the inside fixed mounting of the dive pump body 2 has impeller frame 16, the inside of impeller frame 16 runs through and is provided with impeller shaft 11, it has a plurality of sets of impeller blades 17 to be close to impeller frame 16 department fixed mounting on impeller shaft 11, impeller shaft 11 and motor case 3 pass through pump shaft 10 fixed connection, be provided with sealing washer 14 between impeller frame 16 and pump shaft 10, and impeller shaft 11 passes sealing washer 14, mounting groove 13 has been seted up to the inside of pump shaft 10, and the bottom of the impeller shaft 11 extends to the inside of the mounting groove 13, the inside of the pump shaft 10 is close to the mounting groove 13 and is inlaid with three sets of equidistant fixed limit blocks 12, the fixed limit blocks 12 and the impeller shaft 11 are spirally connected through threads 15, when in use, the bottom of the impeller shaft 11 to be arranged is inserted into the inside of the mounting groove 13 and is fixedly inlaid with three sets of equidistant fixed limit blocks 12 near the mounting groove 13 and is spirally connected through threads 15, thereby completing the installation and connection operation of the impeller shaft 11 and the pump shaft 10, and through the mounting groove 13, the fixed limit blocks 12 and the threads 15 connecting structure, the installation, the disassembly and the replacement of the impeller shaft 11 to the impeller shaft 11 are convenient, and the pump shaft 10 also has excellent stability, meanwhile, water can be effectively prevented from entering the inside of the pump shaft 10 through the sealing ring 14 arranged between the impeller frame 16 and the pump shaft 10, the waterproof effect is achieved, meanwhile, the impeller shaft 11 and the pump shaft 10 are both made of titanium alloy in a customized mode, the titanium alloy has high hardness due to the physical characteristics of the titanium alloy, the acting loss of the titanium alloy is reduced, the shell cover 7 is fixedly installed at the top of the outer shell 1, the handles 8 are fixedly installed at two ends of the shell cover 7, the water outlet 9 is formed in the top of the shell cover 7, when the submersible pump is used, the outer shell 1 can be conveniently unfolded into the submersible pump body 2 and the motor box 3 through the arranged water inlet ring 5, the maintenance of the submersible pump body and the motor box 3 is facilitated, the water inlet ring 5 is convenient to disassemble, garbage covered on one hand is regularly cleaned, meanwhile, the filter screen structure 6 arranged on the water inlet ring 5 can filter large-particle impurities in water, the water quality is guaranteed, and meanwhile, the stability of the whole device is greatly improved through the arranged support base 4, the vibration that produces the during operation of motor case 3 has the effect of a buffering, here simultaneously, conveniently removes the integrated device through the handle 8 of fixed mounting at cap 7 both ends.

The utility model discloses the theory of operation: when the submersible pump is used, the bottom end of the impeller shaft 11 is inserted into the mounting groove 13 and is in threaded connection with three groups of equidistant fixed limiting blocks 12 which are fixedly embedded and arranged at the position close to the mounting groove 13 through threads 15, so that the mounting and connecting operation of the impeller shaft 11 and the pump shaft 10 is completed, the submersible pump body 2 and the motor box 3 are fixedly mounted through the arranged water inlet ring 5 and the fixed bolts, meanwhile, the whole device can be moved to a designated place through the arranged handle 8, the water outlet 9 is fixedly mounted on the water outlet pipe and is lowered to the well bottom, at the same time, the motor box 3 is started to operate, the impeller shaft 11 is driven to rotate by the rotation of the pump shaft 10, the suction force generated by the impeller blades 17 in the rotating rotation can guide water into the submersible pump body 2 from the water inlet ring 5 and lead out through the water outlet 9, so that the water feeding operation of the water outlet is completed, the whole device has simple structure, is convenient to install and disassemble the impeller shaft and the pump shaft and replace the impeller shaft, has excellent stability and has certain popularization value.

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 (7)

1. The utility model provides a connection structure of immersible pump shaft for well, includes shell body (1), the dive pump body (2), motor case (3) and support pedestal (4), its characterized in that: the submersible pump is characterized in that a supporting base (4) is fixedly installed at the bottom of the outer shell (1), the outer shell (1) comprises a submersible pump body (2) and a motor box (3), the submersible pump body (2) and the motor box (3) are fixedly connected through a water inlet ring (5), the water inlet ring (5) is sleeved at the middle section of the outer shell (1), a filter screen structure (6) is arranged on the water inlet ring (5), a vane wheel frame (16) is fixedly installed inside the submersible pump body (2), a vane wheel shaft (11) is arranged inside the vane wheel frame (16) in a penetrating mode, a plurality of groups of vane wheels (17) are fixedly installed on the vane wheel shaft (11) close to the vane wheel frame (16), the vane wheel shaft (11) and the motor box (3) are fixedly connected through a pump shaft (10), a sealing ring (14) is arranged between the vane wheel frame (16) and the pump shaft (10), and the vane wheel shaft (11), mounting groove (13) have been seted up to the inside of pump shaft (10), and impeller shaft (11) bottom extends to the inside of mounting groove (13), the inside of pump shaft (10) is close to mounting groove (13) and locates to inlay fixed stopper (12) that are provided with three equidistance of group, fixed stopper (12) and impeller shaft (11) are through screw thread (15) screwed connection, the top fixed mounting of shell body (1) has cap (7), cap (7) both ends fixed mounting has handle (8), delivery port (9) have been seted up at cap (7) top.

2. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the outer shell (1) is made of stainless steel in a customized mode.

3. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the motor box (3) and the support base (4) are integrally formed in a stretching mode.

4. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the grain direction of the thread (15) is opposite to the rotation direction of the pump shaft (10).

5. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the impeller blade (17) and the impeller shaft (11) are fixedly connected through electric welding.

6. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the pump shaft (10) and the impeller shaft (11) are both made of titanium alloy in a customized mode.

7. The connection structure of pump shafts for submersible pumps for wells according to claim 1, characterized in that: the water inlet ring (5) is fixedly connected with the submersible pump body (2) and the motor box (3) through fixing bolts.

Images