CN215201765U

CN215201765U - Major axis pump dismounting device

Info

Publication number: CN215201765U
Application number: CN202120558086.5U
Authority: CN
Inventors: 杨栋; 赵贯雨; 袁素海; 张玉荣; 马云飞
Original assignee: Xuanhua Iron and Steel Group Co Ltd
Current assignee: Xuanhua Iron and Steel Group Co Ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-12-17
Anticipated expiration: 2031-03-18

Abstract

The long shaft pump dismounting device comprises a jack, a base, a pump shaft, a shaft sleeve, a guide groove and a U-shaped clamping ring; the jack is arranged in the machine base, the base of the jack props against the machine base, and the sleeve connected with the base of the jack props against the shaft end of the pump shaft; clamping grooves with the same coaxial diameter are processed at the connecting steel plate of the base and the guide groove and are used for fixing the shaft sleeve; the shaft shoulder part of the shaft sleeve sleeved on the pump shaft is embedded into the clamping groove for fixation; two positions in the middle of the outer diameter of the guide groove are welded with nuts, and a pump shaft is fixedly connected outside the welded nuts by using U-shaped clamps. The utility model has the advantages that: the device has simple structure and convenient use, and solves the difficult problem that the connecting shaft between the long shaft pump stages is difficult to split by manufacturing the special shaft pulling device.

Description

Major axis pump dismounting device

Technical Field

The utility model relates to a steelmaking continuous casting auxiliary assembly technical field especially relates to a dismounting device of centrifugal long axis pump that steelmaking system whirl well promoted sewage and used.

Background

In the prior art, the secondary cooling water of the continuous casting of the steelmaking system is completely recovered through a cyclone well, the cyclone well is required to be arranged below the ground to ensure that the production return water can automatically flow into the cyclone well, and the cyclone well uses a long-shaft pump with the model of 12LPT-35 as a lifting water pump. Therefore, the lifting pump of the cyclone well is arranged above the liquid level, the long shaft pump structure is that the pump body is below the liquid level, the motor is above the liquid level, and the middle part is driven by three connecting shafts. The pump is simple and quick to start, water can be fed only when the pump body is below the liquid level, but the transmission shaft is long, and once a fault occurs, the pump is difficult to dismount and inspect. When the long-shaft pump is overhauled, the long-shaft pump needs to be detached from the impeller part step by step upwards. The three transmission shafts are connected through the middle shaft sleeve, and the shaft sleeves are tightly matched during disassembly and inspection, so that the three transmission shafts are extremely difficult to disassemble. Sometimes, the shaft can only be cut off and replaced again, which causes the difficulty of maintenance operation to be increased and the consumption of spare parts to be large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a long axis pump dismounting device of a difficult problem is dismantled to easy operation, convenient to use, solution long axis pump that can be swift.

The utility model discloses a solve the technical scheme that above-mentioned problem provided and be: a long shaft pump dismounting device comprises a jack, a base, a pump shaft, a shaft sleeve, a guide groove and a U-shaped clamping ring; the jack is arranged in the machine base, the base of the jack props against the machine base, and the sleeve connected with the base of the jack props against the shaft end of the pump shaft; clamping grooves with the same coaxial diameter are processed at the connecting steel plate of the base and the guide groove and are used for fixing the shaft sleeve; the shaft shoulder part of the shaft sleeve sleeved on the pump shaft is embedded into the clamping groove for fixation; two positions in the middle of the outer diameter of the guide groove are welded with nuts, and a pump shaft is fixedly connected outside the welded nuts by using U-shaped clamps.

Preferably: the engine base is of a door-shaped frame structure and is welded and manufactured by steel plates.

Preferably: the guide groove is made of a steel pipe material by splitting along the axial direction of the steel pipe.

The utility model has the advantages that: the device has simple structure and convenient use, and solves the difficult problem that the connecting shaft between the long shaft pump stages is difficult to split by manufacturing the special shaft pulling device.

Drawings

Fig. 1 is a schematic structural view of a long shaft pump dismounting device according to an embodiment of the present invention.

In the drawings: 1. a screw jack; 2. a machine base; 3. a pump shaft; 4. a shaft sleeve; 5. a guide groove; and 6, a U-shaped snap ring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. A long shaft pump dismounting device, as shown in fig. 1, comprising: jack 1, frame 2, pump shaft 3, axle sleeve 4, guide way 5, U type snap ring 6. The jack 1 is arranged in the base 2, the base of the jack 1 props against the base 2, and the sleeve connected with the base of the jack props against the shaft end of the pump shaft 3; clamping grooves with the same coaxial diameter are processed at the connecting steel plate of the base 2 and the guide groove 5 for fixing the shaft sleeve 4; the shaft shoulder part of a shaft sleeve 4 sleeved on the pump shaft 3 is embedded into the clamping groove for fixation; nuts are welded at the two middle positions of the outer diameter of the guide groove 5, and a U-shaped clamp 6 is used for fixedly connecting the pump shaft outside the welded nuts.

The machine base 2 is of a door-shaped frame structure and is manufactured by welding steel plates. The guide groove 5 is made of a steel pipe material by cutting along the axial direction of the steel pipe.

The utility model discloses a theory of operation is: and manufacturing a shaft puller specially used for disassembling a pump shaft. The shaft pulling device consists of three parts, namely a machine base 2, a jack 1 and a guide groove 5. The machine base 2 is of a door-shaped frame type and is manufactured by welding steel plates. The engine base is a main stress component and mainly bears the interaction force of the jack 1 and the pump shaft 3. And a clamping groove with the same diameter as the pump shaft is processed at the position of the steel plate connecting the base 2 and the guide groove 5 and is used for fixing the shaft sleeve 4. The guide groove 5 is made of a steel pipe, is split along the axial direction of the steel pipe, is welded with nuts at two middle positions, and is fixedly connected with the pump shaft 3 through a U-shaped clamp 6. The guide groove 5 mainly plays a role in guiding and prevents the long shaft from deviating under stress. When the device is used, the pump shaft 3 is firstly horizontally arranged in the base 2 and supported by the portal frame, the pump shaft is horizontally suspended on the ground and arranged between the frames of the base 2, and meanwhile, the pad piece is added on the base of the jack according to the distance between the pump shaft 3 and the jack 1 and the stroke of the jack to adjust the position, so that the matching surface of the pump shaft and the shaft sleeve 3 can be separated in the stroke range of the jack 1. The shaft shoulder part of the shaft sleeve 4 is embedded into the clamping groove for fixing; and another transmission shaft in the guide groove 5 props against a guide groove bottom plate, then the jack sleeve is manually propped out, the pump shaft is pushed to move horizontally, the pump shaft is gradually separated from the shaft sleeve, and the dismounting process is finished.

Claims

1. The utility model provides a major axis pump dismounting device, includes pump shaft (3), axle sleeve (4), U type snap ring (6), its characterized in that: the lifting jack is characterized by also comprising a lifting jack (1), a machine base (2) and a guide groove (5); the jack (1) is arranged in the base (2), the base of the jack (1) props against the base (2), and the sleeve connected with the base of the jack props against the shaft end of the pump shaft (3); clamping grooves with the same coaxial diameter are processed at the connecting steel plate of the base (2) and the guide groove (5) for fixing the shaft sleeve (4); the shaft shoulder part of a shaft sleeve (4) sleeved on the pump shaft (3) is embedded into the clamping groove for fixation; nuts are welded at the two middle positions of the outer diameter of the guide groove (5), and a U-shaped clamp (6) is used for fixedly connecting the pump shaft outside the welded nuts.

2. The apparatus as claimed in claim 1, wherein: the engine base (2) is of a door-shaped frame structure and is welded and manufactured by steel plates.

3. The apparatus as claimed in claim 1, wherein: the guide groove (5) is made by cutting a steel pipe material along the axial direction of the steel pipe.