CN212959263U

CN212959263U - Lightweight stainless steel water inlet pump head

Info

Publication number: CN212959263U
Application number: CN202020847094.7U
Authority: CN
Inventors: 陈仙军
Original assignee: Zhejiang Redbud Pump Industry Co ltd
Current assignee: Zhejiang Redbud Pump Industry Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-04-13
Anticipated expiration: 2030-05-19

Abstract

The utility model relates to a lightweight stainless steel water intake pump head belongs to stainless steel pump head technical field, has solved and has made the lightweight stainless steel water intake pump head that sealing performance is good, the utility model discloses a pump barrel and water inlet joint, the pump barrel in from top to bottom set gradually volute, impeller subassembly and impeller drive assembly, impeller drive assembly and water inlet joint between set up the PPO oral siphon, impeller drive assembly include drive shaft and drive shaft lightweight subassembly. The utility model discloses a set up PPO choma and drive shaft lightweight subassembly, when improving the sealing performance of the pump head of intaking, reduced off-the-shelf quality by a wide margin. The production cost and the transportation cost are reduced.

Description

Lightweight stainless steel water inlet pump head

Technical Field

The utility model belongs to the technical field of the stainless steel pump head, a stainless steel water intake pump head, especially a lightweight stainless steel water intake pump head are related to.

Background

Because the restriction of integral type pump head usage is big and more the maintenance is changed the degree of difficulty height, split type pump head has become present research enthusiasm. As in chinese utility model patent [ application number: CN201820801982.8 discloses a split type hydraulic end of a water injection pump, which comprises a plunger reciprocating mechanism, a suction and discharge flow channel pump head and a suction and discharge pressurizing assembly; the plunger reciprocating mechanism is inserted into the pump head of the suction and discharge flow passage; the suction and discharge pressurizing assembly is connected with the pump head of the suction and discharge flow passage; the plunger reciprocating mechanism comprises a locking nut, a plunger, a packing pressing sleeve, a box pressing cap, a sealing box, an inner guide sleeve, an outer guide sleeve, a packing and a connecting flange; the packing pressing sleeve, the inner guide sleeve, the outer guide sleeve and the packing are arranged in the sealed box and are tightly pressed by the box pressing cap; the plunger is arranged in the sealing box; the sealing box body is inserted into the pump head of the suction flow channel; the sealing box body is connected with the connecting flange through bolts; the suction flow passage pump head is internally provided with a liquid inlet flow passage and a liquid discharge flow passage. The utility model discloses a split type hydraulic end of water injection pump adopts split type pump head modularized design, can exchange, make up the use at different displacement pump units. However, the utility model discloses a sealing performance is relatively poor, influences the in-service use effect, though used split type design simultaneously, the pump head quality is still great, and production and cost of transportation are higher.

Therefore, a lightweight stainless steel water pump head having excellent sealing performance is required to be produced.

Disclosure of Invention

The utility model aims at the above problem, a new energy automobile motor high pressure pencil assembly is provided.

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

the utility model provides a lightweight stainless steel pump head of intaking, includes pump barrel and water inlet joint, the pump barrel in from top to bottom set gradually volute, impeller subassembly and impeller drive assembly, impeller drive assembly and water inlet joint between set up the PPO oral ring, impeller drive assembly include drive shaft and drive shaft lightweight subassembly.

In foretell lightweight stainless steel water pump head, the PPO oral ring include the sealed terminal surface that meets with impeller drive assembly, go-between and the sealed convex part that meets with the water inlet joint, the PPO oral ring still set up mechanical seal groove in the axial side, the PPO oral ring set up mechanical seal mounting hole in the one end that meets with the water inlet joint.

In foretell lightweight stainless steel water pump head, the PPO mouth ring still include the beaded finish, the beaded finish set up the axle center department at the PPO mouth ring, the go-between constitute the pump barrel seal groove with sealed terminal surface and sealed convex part, the pump barrel seal groove in set up the pump barrel sealing washer.

In foretell lightweight stainless steel water pump head, the seal face set up with impeller drive assembly matched with recess, seal face below still set up the strengthening rib, the axial side of seal face set up the seal groove, the seal groove still set up O shape sealing washer.

In the lightweight stainless steel water inlet pump head, the sealing convex part is matched with the water inlet joint, the PPO port ring is also provided with a fastening foot at the joint of the PPO port ring and the water inlet joint, and the length of the fastening foot is greater than that of the sealing convex part.

In the above-mentioned lightweight stainless steel water pump head, the impeller subassembly include impeller, impeller choma and apron all set up in the axle center department of impeller, the apron set up in the below of impeller choma, apron and volute form the impeller and rotate the chamber.

In foretell lightweight stainless steel water pump head, drive shaft lightweight subassembly include lower axle sleeve, rubber bearing and supporting seat, the one end and the impeller subassembly of supporting seat sealed mutually, the other end and the PPO mouth ring of supporting seat sealed mutually.

In foretell lightweight stainless steel pump head of intaking, the supporting seat include support ring, drive tighrening ring and connection choma, the both ends of support ring axis direction all set up the ladder sealing, the drive tighrening ring meet with lower axle sleeve and locate to set up the groove of stepping down of installation rubber bearing.

In the lightweight stainless steel water inlet pump head, the supporting seat is further provided with a cover plate sealing ring at one end connected with the cover plate, and a sealing strip is arranged at the joint of the impeller and the lower shaft sleeve.

In the lightweight stainless steel water inlet pump head, the water inlet joint and the pump barrel are fixed through screws, the water inlet joint is internally provided with a water guide cover, and the water inlet joint is internally provided with a coupler.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a set up PPO choma and drive shaft lightweight subassembly, when improving the sealing performance of the pump head of intaking, reduced off-the-shelf quality by a wide margin. The production cost and the transportation cost are reduced.

2. The utility model discloses a series of settings improve the structural stability of PPO oral ring like the bilayer structure of PPO oral ring, improve the stability of product, prolong the life of product.

3. The utility model discloses simple structure easily prepares and installs and maintain the change.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic cross-sectional view provided by the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of the structure of the present invention;

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

in the figure, a pump barrel 1, a water inlet joint 2, a volute 3, an impeller assembly 4, an impeller driving assembly 5, a PPO port ring 6, a driving shaft 51, a driving shaft lightening assembly 52, a sealing end surface 61, a connecting ring 62, a sealing convex part 63, a mechanical sealing groove 64, a mechanical sealing mounting hole 65, a reinforcing ring 66, a pump barrel sealing groove 621, a pump barrel sealing ring 622, a reinforcing rib 611, a sealing groove 612, a fastening foot 67, an impeller 41, an impeller port ring 42, a cover plate 43, a lower shaft sleeve 521, a rubber bearing 522, a supporting seat 523, a supporting ring 524, a driving fastening ring 525, a connecting port ring 526, a stepped sealing part 524a, an abdicating groove 525a, a cover plate sealing ring 527, a sealing strip 528, a water guide cover 21 and a coupler 22.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in figure 1, a lightweight stainless steel water inlet pump head, including pump barrel 1 and water inlet joint 2, pump barrel 1 in from top to bottom set gradually volute 3, impeller subassembly 4 and impeller drive assembly 5, impeller drive assembly 5 and water inlet joint 2 between set up PPO oral ring 6, impeller drive assembly 5 include drive shaft 51 and drive shaft lightweight subassembly 52. In order to improve the sealing performance of the water inlet pump head, the PPO port ring 6 is arranged for sealing, and meanwhile, the overall quality of the product is greatly reduced through the PPO port ring 6 and the driving shaft light-weight assembly 52.

As shown in fig. 2, the PPO ring 6 includes a sealing end surface 61 connected to the impeller driving assembly 5, a connecting ring 62, and a sealing protrusion 63 connected to the water inlet joint 2, the PPO ring 6 further includes a mechanical sealing groove 64 on an axial side surface thereof, and the PPO ring 6 includes a mechanical sealing mounting hole 65 on an end connected to the water inlet joint 2. It will be appreciated by those skilled in the art that unlike prior art orifice rings, which are generally unitary in construction, the present embodiment provides a seal face 61 that seals with the impeller drive assembly 5 and a seal lip 63 that seals with the water intake nipple 2 for sealing and stability of the device.

Further, the PPO port ring 6 further includes a reinforcement ring 66, the reinforcement ring 66 is disposed at the axial center of the PPO port ring 6, the connection ring 62, the sealing end surface 61 and the sealing protrusion 63 form a pump cylinder sealing groove 621, and a pump cylinder sealing ring 622 is disposed in the pump cylinder sealing groove 621. That is, the PPO mouth ring 6 of this embodiment is a double-layer structure, and the flow guide is performed while the stability is improved.

Furthermore, in order to ensure the stability of the abutting surface, the sealing end surface 61 is provided with a groove matched with the impeller driving assembly 5, a reinforcing rib 611 is further arranged below the sealing end surface 61, a sealing groove 612 is arranged on the axial side surface of the sealing end surface 61, and an O-shaped sealing ring is further arranged on the sealing groove 612. As the impact resistance of the PPO material is weaker than that of the stainless steel material, the reinforcing ribs 611 and the O-shaped sealing rings 613 are arranged at the concentrated position in hand to ensure the safety of the structure.

As shown in figure 2, in order to improve the connection stability between the PPO port ring 6 and the water inlet joint 2, the sealing convex part 63 is matched with the water inlet joint 2, the joint of the PPO port ring 6 and the water inlet joint 2 is also provided with a fastening foot 67, and the length of the fastening foot 67 is greater than that of the sealing convex part 63.

As shown in fig. 1, the impeller assembly 4 includes an impeller 41, an impeller eye 42 and a cover plate 43, the impeller eye 42 and the cover plate 43 are both disposed at the axial center of the impeller 41, the cover plate 43 is disposed below the impeller eye 42, and the cover plate 43 and the volute 3 form an impeller rotation cavity. The cover plate 43 and the scroll 3 protect the impeller from rotating at a predetermined speed.

As shown in fig. 3, the driving shaft lightening assembly 52 includes a lower bushing 521, a rubber bearing 522 and a support seat 523, wherein one end of the support seat 523 is sealed with the impeller assembly 4, and the other end of the support seat 523 is sealed with the PPO ring 6. Since the driving shaft lightweight assembly 52 requires high sealing performance and stability, the support seat 523 is provided for precise sealing support.

Further, according to the characteristics of the driving shaft 51, the supporting seat 523 includes a supporting ring 524, a driving fastening ring 525 and a connecting ring 526, two ends of the supporting ring 524 in the axial direction are provided with stepped sealing portions 524a, the driving fastening ring 525 is connected with the lower shaft sleeve 521, and a relief groove 525a for installing a rubber bearing is formed at the joint of the driving fastening ring 525 and the lower shaft sleeve 521.

Furthermore, a cover plate sealing ring 527 is arranged at one end of the supporting seat 523, which is connected with the cover plate 43, and a sealing strip 528 is arranged at the joint of the impeller 41 and the lower shaft sleeve 521.

It should be understood by those skilled in the art that the water inlet joint 2 and the pump barrel 1 are fixed by screws, a water guide cover 21 is further arranged in the water inlet joint 2, and a coupler 22 is arranged in the water inlet joint 2.

The utility model discloses a theory of operation is: liquid enters the pump head from the water inlet joint 2, the water guide cover 21 guides the flow of the liquid, the liquid enters the PPO port ring 6 for flow distribution, the impeller driving assembly 5 drives the impeller 41 to rotate, the generated mechanical energy is transmitted to the liquid, and the liquid with the obtained mechanical energy flows out of the volute 3. Wherein, PPO oral ring 6 guarantees holistic structural stability through bilayer structure, and the leakproofness between the pump head upper and lower portion has also been guaranteed to the sealing end face 61 and the sealed convex part 63 of PPO oral ring 6, and the upper portion of pump head is also sealed with pump barrel 1 through PPO oral ring 6 simultaneously. At the same time, the drive shaft lightening assembly 52 also ensures that the liquid not only affects the service life of the drive shaft through a series of arrangements.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the pump cylinder 1, the water inlet joint 2, the volute 3, the impeller assembly 4, the impeller driving assembly 5, the PPO mouth ring 6, the driving shaft 51, the driving shaft lightening assembly 52, the sealing end surface 61, the connecting ring 62, the sealing convex part 63, the mechanical sealing groove 64, the mechanical sealing installation hole 65, the reinforcing ring 66, the pump cylinder sealing groove 621, the pump cylinder sealing ring 622, the reinforcing rib 611, the sealing groove 612, the fastening foot 67, the impeller 41, the impeller mouth ring 42, the cover plate 43, the impeller rotating cavity, the lower bushing 521, the rubber bearing 522, the supporting seat 523, the supporting ring 524, the driving fastening ring 525, the connecting mouth ring 526, the stepped sealing part 524a, the relief groove 525a, the cover plate sealing ring 527, the sealing strip 528, the water deflector 21, the coupling 22 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a lightweight stainless steel pump head of intaking, includes pump barrel (1) and water inlet (2), pump barrel (1) in from top to bottom set gradually volute (3), impeller subassembly (4) and impeller drive assembly (5), its characterized in that: impeller drive assembly (5) and water inlet joint (2) between set up PPO oral siphon (6), impeller drive assembly (5) including drive shaft (51) and drive shaft lightweight subassembly (52).

2. A light-weight stainless steel water intake pump head as claimed in claim 1, wherein: PPO oral ring (6) including with impeller drive assembly (5) the sealed terminal surface (61) that meet, go-between (62) and with seal convex part (63) that water inlet joint (2) meet, PPO oral ring (6) still set up mechanical seal groove (64) in the axial side, PPO oral ring (6) set up mechanical seal mounting hole (65) in the one end that meets with water inlet joint (2).

3. A light-weight stainless steel water intake pump head as claimed in claim 2, wherein: PPO mouth ring (6) still include beaded finish (66), beaded finish (66) set up the axle center department at PPO mouth ring (6), go-between (62) constitute pump barrel seal groove (621) with sealed terminal surface (61) and sealed convex part (63), pump barrel seal groove (621) in set up pump barrel sealing washer (622).

4. A light-weight stainless steel water intake pump head as claimed in claim 2, wherein: sealing surface (61) set up the recess with impeller drive assembly (5) matched with, sealing surface (61) below still set up strengthening rib (611), the axial side of sealing surface (61) set up seal groove (612), seal groove (612) still set up O shape sealing washer.

5. A light-weight stainless steel water intake pump head as claimed in claim 2, wherein: sealing convex part (63) and water inlet joint (2) cooperate, PPO mouth ring (6) still set up fastening foot (67) in meeting department with water inlet joint (2), fastening foot (67) length be greater than the length of sealing convex part (63).

6. A light-weight stainless steel water intake pump head as claimed in claim 1, wherein: the impeller assembly (4) comprises an impeller (41), an impeller opening ring (42) and a cover plate (43), wherein the impeller opening ring (42) and the cover plate (43) are both arranged at the axis of the impeller (41), the cover plate (43) is arranged below the impeller opening ring (42), and an impeller rotating cavity is formed by the cover plate (43) and the volute (3).

7. A light-weight stainless steel water intake pump head according to claim 6, wherein: the driving shaft lightweight assembly (52) comprises a lower shaft sleeve (521), a rubber bearing (522) and a supporting seat (523), one end of the supporting seat (523) is sealed with the impeller assembly (4), and the other end of the supporting seat (523) is sealed with the PPO port ring (6).

8. The lightweight stainless steel water intake pump head of claim 7, wherein: support seat (523) including support ring (524), drive tighrening ring (525) and connection mouth ring (526), the both ends of support ring (524) axis direction all set up ladder sealing part (524a), drive tighrening ring (525) meet with lower axle sleeve (521) and locate to set up the groove of stepping down (525a) of installation rubber bearing.

9. A light-weight stainless steel water intake pump head as claimed in claim 8, wherein: the supporting seat (523) is further provided with a cover plate sealing ring (527) at one end connected with the cover plate (43), and a sealing strip (528) is arranged at the joint of the impeller (41) and the lower shaft sleeve (521).

10. A light-weight stainless steel water intake pump head as claimed in claim 1, wherein: the water inlet joint (2) and the pump barrel (1) are fixed through screws, a water guide cover (21) is further arranged in the water inlet joint (2), and a coupler (22) is arranged in the water inlet joint (2).