CN218669829U

CN218669829U - High-pressure flushing pump

Info

Publication number: CN218669829U
Application number: CN202222914445.3U
Authority: CN
Inventors: 冷思锌; 徐淑敏; 傅志民; 祁浩东; 郭贵; 赵建鹏; 陈选
Original assignee: Cccc Shanghai Dredging Equipment Industry Co ltd
Current assignee: Cccc Shanghai Dredging Equipment Industry Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-21
Anticipated expiration: 2032-11-02

Abstract

The utility model discloses a high-pressure flushing pump, which comprises a pump shaft, wherein one end of the pump shaft is provided with a thread, the other end of the pump shaft is provided with a plate wheel, and the plate wheel is used for detecting whether the water pump can normally operate; install the impeller structure that has screw thread one end at the pump shaft, impeller structure passes through the screw thread and can dismantle with the pump shaft and be connected, and impeller structure is used for the sea water pressure boost. This flushing pump utilizes the screw of taking the cap to dismantle through the shell and is connected between protecgulum and hou gai for dismantle behind the screw of taking the cap, can with protecgulum and shell direct separation, five leaf formula impellers of recycling have screw thread end threaded connection through screw hole and pump shaft, conveniently dismantle five leaf formula impeller spirals, maintain and change, after the maintenance is changed and is accomplished, can be with protecgulum and shell snap-on, avoided dismantling overall structure, improved maintenance efficiency.

Description

High-pressure flushing pump

Technical Field

The utility model relates to a dredge equipment technical field, especially relate to a high-pressure flushing pump.

Background

According to the wide application of dredging ships in the projects of land reclamation by sea, port construction, channel dredging, river and lake treatment and the like, the independent innovation capability of the dredging industry in China is obviously improved, dredging equipment in China also runs on the domestic roads, and along with the continuous appearance of large dredging ships in China, the performance of a high-pressure flushing pump equipped for the dredging ships is higher and higher, and the dredging ships are all applied to construction projects.

At present, the pump case of the high-pressure flushing pump on the market is integrally installed outside the impeller, but the impeller is easy to damage due to the fact that sundries in seawater are more, the flushing pump generally needs to be integrally disassembled to be replaced after damage, and replacement efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art, and provides a high-pressure flushing pump, which comprises a pump shaft, wherein one end of the pump shaft is provided with a thread, and the other end of the pump shaft is provided with a plate wheel which is used for detecting whether the water pump can normally operate;

the impeller structure is arranged at one end, provided with threads, of the pump shaft, is detachably connected with the pump shaft through the threads, and is used for pressurizing seawater;

and the pump shell structure is arranged outside the impeller structure and is connected with the pump shaft through a sealing assembly.

Preferably, the impeller structure includes five leaf impeller, the inside screw hole that has seted up of five leaf impeller, five leaf impeller pass through the screw hole with the pump shaft has screw thread end threaded connection, be that five leaf impeller is cast by alloy steel ZG35 CrMo.

Preferably, the pump casing structure comprises a casing, a front cover and a rear cover, the casing is detachably connected between the front cover and the rear cover through a screw with a cap, and the impeller structure is located in a space formed by the casing, the front cover and the rear cover.

Preferably, the front cover is provided with a water inlet, and the shell is provided with a water outlet pipe.

Preferably, the pump case structure is internally fixed with a front lining plate and a rear lining plate through bolts, the front lining plate is detachably connected with the front cover through bolts, the rear lining plate is detachably connected with the rear cover through bolts, and the impeller structure is located between the front lining plate and the rear lining plate.

Preferably, the rear cover is detachably connected with the pump shaft through a sealing assembly, and the sealing assembly is composed of a sealing ring and a connecting bolt.

Preferably, a bearing box is arranged on the outer side of the pump shaft, the bearing box is fixed on the bearing base, and end covers are arranged at two ends of the bearing box.

Preferably, the pump shaft is provided with three bearings.

Preferably, one side of the turning wheel is provided with a turning rod.

Preferably, the front lining plate and the rear lining plate are both cast by adopting ZG30 CrNiMo.

The technical scheme has the following advantages or beneficial effects:

the utility model discloses a shell utilizes the screw of taking the cap can dismantle the connection between protecgulum and hou gai for after dismantling the screw of taking the cap, can with protecgulum and shell direct separation, five leaf formula impellers of recycling have screw thread end threaded connection through screw hole and pump shaft, conveniently dismantle five leaf formula impeller spirals, maintain and change, after the maintenance is changed and is accomplished, can be with protecgulum and shell snap-on, avoided dismantling overall structure, improved maintenance efficiency.

Drawings

Fig. 1 is a schematic structural view of a flush pump according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a flush pump according to an embodiment of the present invention;

fig. 3 is a side view of a flush pump according to an embodiment of the present invention;

fig. 4 is a top view of a flush pump according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a pump housing structure in the flush pump of fig. 1.

Illustration of the drawings:

1. a pump shaft; 2. a thread; 3. turning wheels; 4. an impeller structure; 5. a pump housing structure; 6. a seal assembly; 7. a front liner plate; 8. a rear liner plate; 9. a bearing housing; 10. a bearing mount; 11. an end cap; 12. a bearing; 13. a turning rod; 41. a five-bladed impeller; 42. a threaded hole; 51. a housing; 52. a front cover; 53. a rear cover; 54. a cap screw; 55. a water inlet; 56. and (5) discharging a water pipe.

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 efforts all belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-5, the high-pressure flushing pump of the present invention comprises a pump shaft 1, wherein one end of the pump shaft 1 is provided with a thread 2, the other end of the pump shaft 1 is provided with a plate wheel 3, and the plate wheel 3 is used for detecting whether the water pump can normally operate; the impeller structure 4 is arranged at one end, provided with the thread 2, of the pump shaft 1, the impeller structure 4 is detachably connected with the pump shaft 1 through the thread 2, and the impeller structure 4 is used for pressurizing seawater; the pump shell structure 5 is arranged outside the impeller structure 4, and is connected with the pump shaft 1 through a sealing assembly 6; the turning rod 13 drives the turning wheel 3 to rotate, whether the water pump can normally operate can be detected, and seawater pumped in from the water inlet 55 is pressurized and discharged by connecting a water pipe to the water outlet pipe 56 on the pump shell structure 5.

As shown in fig. 1 and 2, further, a water inlet 55 is formed in the front cover 52, a water outlet pipe 56 is arranged on the housing 51, the rear cover 53 is detachably connected with the pump shaft 1 through a sealing assembly 6, the sealing assembly 6 is composed of a sealing ring and a connecting bolt, a bearing box 9 is arranged on the outer side of the pump shaft 1, the bearing box 9 is fixed on the bearing base 10, end covers 11 are arranged at two ends of the bearing box 9, bearings 12 are arranged on the pump shaft 1, and three bearings 12 are arranged; the bearing box 9 is conveniently installed on the ship body through the bearing base 10, the device is convenient to work, and the shell 51, the front cover 52 and the rear cover 53 are sealed by a seawater-proof and oil-proof circular rubber ring.

As shown in fig. 2 and 5, the impeller structure 4 includes a five-blade impeller 41, a threaded hole 42 is opened in the five-blade impeller 41, the five-blade impeller 41 is in threaded connection with the end of the pump shaft 1 having the thread 2 through the threaded hole 42, the five-blade impeller 41 is cast by alloy steel ZG35CrMo, the pump casing structure 5 includes a casing 51, a front cover 52 and a rear cover 53, the casing 51 is detachably connected between the front cover 52 and the rear cover 53 through a screw 54 with a cap, and the impeller structure 4 is located in a space formed by the casing 51, the front cover 52 and the rear cover 53; utilize screw 54 of taking the cap to dismantle the connection between protecgulum 52 and hou gai 53 through shell 51 for dismantle behind screw 54 of taking the cap, can be with protecgulum 52 and shell 51 direct separation, it has screw thread 2 end threaded connection through screw hole 42 and pump shaft 1 to recycle five-blade impeller 41, conveniently dismantle five-blade impeller 41 spirals, maintain and change, after the maintenance is changed and is accomplished, can be with protecgulum 52 and shell 51 snap-on, the dismantlement of overall structure has been avoided, maintenance efficiency is improved.

Example two:

as shown in fig. 2 and fig. 5, on the basis of the first embodiment, the utility model provides a technical solution: a front lining plate 7 and a rear lining plate 8 are fixed inside the pump shell structure 5 through bolts, the front lining plate 7 is detachably connected with the front cover 52 through bolts, the rear lining plate 8 is detachably connected with the rear cover 53 through bolts, and the impeller structure 4 is positioned between the front lining plate 7 and the rear lining plate 8; the front lining plate 7 and the rear lining plate 8 are fixed on two sides of the five-blade impeller 41, so that the five-blade impeller 41 can be protected, the impact of impurities of seawater on the impeller structure 4 is weakened, and the service life of the impeller structure 4 is prolonged.

As shown in fig. 1, a turning rod 13 is arranged on one side of the turning wheel 3, and the front lining plate 7 and the rear lining plate 8 are both cast by ZG30 CrNiMo; the pump shaft 1 is made of 42CrMo through thermal refining and is machined by an integral forging machine, a single key is matched with the shaft end, the maximum torque of the pump shaft is not less than 1.6 times of rated torque, the pump shaft 1 is supported by self-aligning spherical roller bearings at two ends and a middle spherical roller thrust bearing, both SKF bearings or the same brand are adopted, and the service life of the bearings is more than 40000 hours.

The working principle is as follows: the staff is through receiving the water pipe on outlet pipe 56 on the pump case structure 5, the sea water that will be sucked by water inlet 55 is discharged in the pressurization, utilize the screw 54 of taking the cap to dismantle and be connected between protecgulum 52 and back lid 53 through shell 51, make after dismantling the screw 54 of taking the cap, can directly separate protecgulum 52 and shell 51, reuse five-bladed impeller 41 and pump shaft 1 through screw hole 42 have screw thread 2 end threaded connection, conveniently dismantle five-bladed impeller 41 spirals, maintain and change, after the maintenance is changed, can be with protecgulum 52 and shell 51 snap-on, avoided dismantling overall structure, maintenance efficiency has been improved, rethread fixing in five-bladed impeller 41 both sides through preceding welt 7 and back welt 8, can protect five-bladed impeller 41, weaken the debris impact impeller structure 4 of sea water, the life of extension impeller structure 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A high-pressure flushing pump comprises a pump shaft (1), and is characterized in that one end of the pump shaft (1) is provided with a thread (2), the other end of the pump shaft (1) is provided with a disc wheel (3), and the disc wheel (3) is used for detecting whether the water pump can normally operate;

the seawater pump comprises an impeller structure (4) arranged at one end, provided with a thread (2), of a pump shaft (1), wherein the impeller structure (4) is detachably connected with the pump shaft (1) through the thread (2), and the impeller structure (4) is used for pressurizing seawater;

the pump casing structure (5) is arranged on the outer side of the impeller structure (4) and is connected with the pump shaft (1) through a sealing assembly (6).

2. A high pressure flush pump as claimed in claim 1, wherein: impeller structure (4) include five leaf formula impellers (41), the inside screw hole (42) of seting up of five leaf formula impellers (41), five leaf formula impellers (41) through screw hole (42) with pump shaft (1) have screw thread (2) end threaded connection, five leaf formula impellers (41) are cast by alloy steel ZG35 CrMo.

3. A high pressure flush pump as claimed in claim 1, wherein: the pump shell structure (5) comprises a shell (51), a front cover (52) and a rear cover (53), the shell (51) is detachably connected between the front cover (52) and the rear cover (53) through a screw (54) with a cap, and the impeller structure (4) is located in a space formed by the shell (51), the front cover (52) and the rear cover (53).

4. A high pressure flush pump as claimed in claim 3, wherein: the front cover (52) is provided with a water inlet (55), and the shell (51) is provided with a water outlet pipe (56).

5. A high pressure flush pump as claimed in claim 1, wherein: pump case structure (5) are inside to be fixed with preceding welt (7) and back welt (8) through the bolt, preceding welt (7) can be dismantled through bolt and protecgulum (52) and be connected, back welt (8) can be dismantled through bolt and hou gai (53) and be connected, impeller structure (4) are located between preceding welt (7) and back welt (8).

6. A high pressure flush pump as claimed in claim 3, wherein: the rear cover (53) is detachably connected with the pump shaft (1) through a sealing assembly (6), and the sealing assembly (6) is composed of a sealing ring and a connecting bolt.

7. A high pressure flush pump as claimed in claim 1, wherein: the pump is characterized in that a bearing box (9) is arranged on the outer side of the pump shaft (1), the bearing box (9) is fixed on a bearing base (10), and end covers (11) are arranged at two ends of the bearing box (9).

8. A high pressure flush pump as claimed in claim 1, wherein: the pump shaft (1) is provided with three bearings (12), and the number of the bearings (12) is three.

9. A high pressure flush pump as claimed in claim 1, wherein: and a turning rod (13) is arranged on one side of the turning wheel (3).

10. A high pressure flush pump as claimed in claim 5, wherein: the front lining plate (7) and the rear lining plate (8) are both cast by adopting ZG30 CrNiMo.