CN212898963U

CN212898963U - Long-life slurry pump

Info

Publication number: CN212898963U
Application number: CN202020930163.0U
Authority: CN
Inventors: 赵炜; 曹国纬; 叶子兆; 王雪虹; 高青
Original assignee: Hangzhou Sanyang Pump Co ltd
Current assignee: Hangzhou Sanyang Pump Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-04-06
Anticipated expiration: 2030-05-27

Abstract

The utility model provides a long-life sediment stuff pump belongs to sediment stuff pump technical field. It includes suspension body and pump body subassembly, suspension body and pump body subassembly can dismantle the connection, pump body subassembly and suspension body between still be equipped with seal structure, pump body subassembly include preceding lid, the pump body and pump cover, the pump body in be equipped with the stirring chamber, the stirring intracavity be equipped with the impeller, the axle center department detachable fixed connection of impeller is equipped with the level setting and wears to locate the internal drive shaft of suspension. Mechanical seal structure between the pump body subassembly and the suspension body can the significantly reduced sediment thick liquid leak the leakage quantity, improve sediment stuff pump life, and the last wear assembly of drive shaft can prevent drive shaft wearing and tearing, thereby reduces the frequency of drive shaft and reduces the replacement cost, improves the life of sediment stuff pump.

Description

Long-life slurry pump

Technical Field

The utility model belongs to the technical field of the sediment stuff pump, a long-life sediment stuff pump is related to.

Background

The slurry pump refers to a device for converting electric energy into kinetic energy and potential energy of a medium by a machine for increasing energy of a solid-liquid mixed medium by the action of centrifugal force (rotation of an impeller of the pump). The method is mainly suitable for the following steps: the industrial fields of mines, power plants, dredging, metallurgy, chemical engineering, building materials, petroleum and the like; the slurry pump delivers a mixture of solid particles containing dross and water. However, the slurry pump belongs to one of centrifugal pumps in principle, and is mainly used for slurry conveying of systems such as converter dedusting water, blast furnace gas washing water, continuous casting turbid circulating water, steel rolling turbid circulating water and the like in steel enterprises; the main shaft of the slurry pump in the prior art is easily abraded in use, so that the main shaft is frequently replaced in time, the cost is high, and the working efficiency is influenced.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a slurry pump is disclosed in a Chinese patent application number: 200910229317.1], including the preceding pump body and the back pump body, be equipped with fastening bolt on the preceding pump body and the back pump body, be equipped with the pump case in the preceding pump body and the back pump body, fastening bolt is preceding, the back pump body is the combination with the pump case fastening in the preceding, in the back pump body, be equipped with the impeller in the pump case, be equipped with the preforming in the middle of the fastening bolt, be equipped with spacing boss corresponding with the preforming on the pump case, before assembling the pump case, fastening bolt goes up back pump body side nut earlier, the preforming in the middle of fastening bolt compresses tightly on the back pump body, then hoist the pump case to the back pump body in, the preforming presses the pump case in the back pump body through spacing boss this moment, do not need the assembler to push down the pump case, save the manual work, the assembly cost is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a long-life sediment stuff pump.

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

the utility model provides a long-life sediment stuff pump, includes suspension body and pump body subassembly, suspension body and pump body subassembly can dismantle the connection, pump body subassembly and suspension body between still be equipped with mechanical seal structure, pump body subassembly include preceding lid, the pump body and pump cover, the pump body in be equipped with the stirring chamber, the stirring intracavity be equipped with the impeller, the axle center department detachable fixed connection of impeller has the level to set up and wears to locate the internal drive shaft of suspension, the drive shaft end run through to the external and drive shaft end of suspension and be equipped with rectangular shape spacing groove, the drive shaft on still be equipped with wear-resisting subassembly, preceding lid on be equipped with along the setting of drive shaft axial and with the continuous hand hole in stirring chamber, the pump body on be equipped with along the radial setting of drive shaft and with the continuous porose of stirring chamber.

In the above-mentioned long-life sediment stuff pump, wear-resisting subassembly is established including the cover and is established the wear-resisting cover on the drive shaft.

In foretell long-life sediment stuff pump, mechanical seal structure establishes the transmission seat in the drive shaft including the cover, transmission seat one end pass through circumference limit structure and link to each other with the impeller, the other end supports with the spacing step in the drive shaft and leans on.

In foretell high life sediment stuff pump, the drive shaft on still the cover be equipped with the rotating ring, rotating ring lateral wall and transmission seat inboard support and lean on, still be equipped with rotating ring O type sealing washer between transmission seat and the rotating ring, rotating ring and transmission seat between through a plurality of locating pin fixed connection, the drive shaft on still the cover be equipped with quiet ring, quiet ring and rotating ring between still be equipped with a plurality of bearings, a bearing housing establish in the drive shaft and a bearing lateral wall and quiet ring or rotating ring inside wall support and lean on.

In foretell long-life sediment stuff pump, the suspension in still be equipped with quiet ring gland, quiet ring gland pass through circumference limit structure and pump cover and link to each other, quiet ring gland bottom support with quiet ring top and lean on, and be equipped with quiet ring O type sealing washer between quiet ring gland and the quiet ring.

In foretell long-life sediment stuff pump, the drive shaft on still overlap and be equipped with quiet ring back shroud, quiet ring back shroud middle part and quiet ring gland support and lean on and quiet ring back shroud middle part is inboard to support through clamping ring and quiet ring and lean on, the clamping ring pass through circumference limit structure and link to each other with quiet ring back shroud, the clamping ring outside and inboard support with quiet ring gland and clamping ring respectively and lean on, clamping ring and quiet ring back shroud between be equipped with the spring, quiet ring back shroud outside link to each other with the pump cover through a plurality of first bolts, quiet ring back shroud middle part link to each other with quiet ring gland through a plurality of second bolts, quiet ring link to each other with the clamping ring through a plurality of locating pins.

In foretell long-life sediment stuff pump, quiet ring back shroud keep away from clamping ring one side and still be equipped with the oil blanket, quiet ring back shroud on still have the oil blanket apron through threaded connection.

In foretell long-life sediment stuff pump, preceding lid and pump cover on still be equipped with protecgulum clamp plate and pump cover clamp plate respectively, preceding lid and pump cover clamp plate support with pump body both sides respectively and lean on, protecgulum clamp plate and pump cover clamp plate pass through a plurality of bolt fixed connection.

In the long-life slurry pump, a front bearing and a plurality of rear bearings are further arranged in the suspension body, a front bearing cover plate is arranged on one side, close to the pump body, of the front bearing, the front bearing cover plate is connected with the suspension body through a plurality of bolts, one side of the front bearing is abutted against a limiting step on the driving shaft, and the other side of the front bearing is abutted against the front bearing cover plate;

the rear bearing at the outermost side is provided with a rear bearing cover plate on one side far away from the pump body, the rear bearing cover plate is connected with the suspension body through a plurality of bolts, the rear bearing at the outermost side is abutted against the rear bearing cover plate, and the rear bearing at the innermost side is abutted against a limiting step on the driving shaft.

In the long-life slurry pump, the impeller is detachably connected with the end part of the driving shaft through the fixing pin.

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

1. mechanical seal structure between the pump body subassembly and the suspension body can the significantly reduced sediment thick liquid leak the leakage quantity, improve sediment stuff pump life, and the last wear assembly of drive shaft can prevent drive shaft wearing and tearing, thereby reduces the frequency of drive shaft and reduces the replacement cost, improves the life of sediment stuff pump.

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 diagram of the overall structure provided by the present invention;

fig. 2 is an enlarged schematic view at a in fig. 1.

Detailed Description

As shown in fig. 1 and 2, a long-life slurry pump comprises a suspension body 1 and a pump body assembly 2, the suspension frame body 1 is detachably connected with the pump body component 2, a mechanical sealing structure 3 is also arranged between the pump body component 2 and the suspension frame body 1, the pump body assembly 2 comprises a front cover body 4, a pump body 5 and a pump cover 6, a stirring cavity 7 is arranged in the pump body 5, an impeller 8 is arranged in the stirring cavity 7, the axis of the impeller 8 is detachably and fixedly connected with a driving shaft 9 which is horizontally arranged and penetrates through the suspension body 1, the tail end of the driving shaft 9 penetrates out of the suspension body 1, the tail end of the driving shaft 9 is provided with a strip-shaped limiting groove 10, the driving shaft 9 is also provided with a wear-resistant component 11, the front cover body 4 is provided with an inlet hole 12 which is arranged along the axial direction of the driving shaft 9 and is connected with the stirring cavity 7, the pump body 5 is provided with an outlet hole which is arranged along the radial direction of the driving shaft 9 and is connected with the stirring cavity 7.

In this embodiment, mechanical seal structure 3 between pump body subassembly 2 and the suspension body 1 can the significantly reduced sediment thick liquid leak the volume, improve sediment stuff pump life, and wear-resisting subassembly 11 on the drive shaft 9 can prevent drive shaft wearing and tearing, thereby reduces the frequency of drive shaft and reduces replacement cost, improves the life of sediment stuff pump.

During the use, the external actuating mechanism of drive shaft 9, rectangular shape spacing groove 10 can conveniently connect actuating mechanism, and actuating mechanism can drive shaft 9 and rotate, and drive shaft 9 rotates and can drive the impeller and rotate to inhale the sediment thick liquid from hand-hole 12 and export from the exit under centrifugal action, mechanical seal structure 3 can seal, and it is internal to prevent that the sediment thick liquid from getting into the suspension.

Specifically, as shown in fig. 1 and 2, the wear assembly 11 includes a wear sleeve 13 that fits over the drive shaft 9. The wear-resistant sleeve 13 can prevent the drive shaft 9 from being worn, and the wear-resistant sleeve can be made of high-chromium alloy with higher hardness.

Specifically, as shown in fig. 1 and fig. 2, the mechanical seal structure 3 includes a transmission seat 14 sleeved on the driving shaft 9, one end of the transmission seat 14 is connected to the impeller 8 through a circumferential limiting structure, and the other end of the transmission seat abuts against a limiting step on the driving shaft 9. The transmission seat 14 is connected with the impeller 8 through a circumferential limiting structure, so that the transmission seat rotates when the impeller rotates; the driving shaft 9 is further sleeved with a movable ring 15, the outer side wall of the movable ring 15 is abutted against the inner side of the transmission seat 14, a movable ring O-shaped sealing ring 16 is further arranged between the transmission seat 14 and the movable ring 15, the movable ring O-shaped sealing ring 16 can prevent slurry from permeating to cause the abrasion of the driving shaft, and the movable ring 15 and the transmission seat 14 are fixedly connected through a plurality of positioning pins 17 so that the movable ring 15 can synchronously rotate along with the transmission seat 14; the driving shaft 9 is further sleeved with a static ring 18, a plurality of bearings 19 are further arranged between the static ring 18 and the dynamic ring 15, the bearings are sleeved on the driving shaft 9, and the outer side wall of each bearing 19 abuts against the inner side wall of the static ring 18 or the inner side wall of the dynamic ring 15. Suspension body 1 in still be equipped with quiet ring gland 20, quiet ring gland 20 link to each other with pump cover 6 through circumference limit structure, quiet ring gland 20 bottom and quiet ring 18 top support and lean on, and be equipped with quiet ring O type sealing washer 21 between quiet ring gland 20 and the quiet ring 18. The static ring gland can limit the static ring, and the static ring O-shaped sealing ring 21 can prevent the driving shaft from being abraded due to the infiltration of slurry; drive shaft 9 on still the cover be equipped with quiet ring back shroud 22, quiet ring back shroud 22 middle part support with quiet ring gland 20 and quiet ring back shroud 22 middle part inboard support through clamping ring 23 and quiet ring 18 and support, clamping ring 23 link to each other with quiet ring back shroud 22 through circumference limit structure, clamping ring 23 outside and inboard support with quiet ring gland 20 and clamping ring 23 respectively and support, clamping ring 23 and quiet ring back shroud 22 between be equipped with spring 50, quiet ring back shroud 22 outside link to each other with pump cover 6 through a plurality of first bolts 24, quiet ring back shroud 22 middle part link to each other with quiet ring gland 20 through a plurality of second bolts 25, quiet ring 18 link to each other with clamping ring 23 through a plurality of locating pins 17.

Those skilled in the art will appreciate that the circumferential limiting structure can be realized by matching the sliding groove and the clamping block.

Preferably, as shown in fig. 1 and fig. 2, an oil seal 26 is further disposed on a side of the stationary ring rear cover plate 22 away from the compression ring 23, and an oil seal cover plate 27 is further connected to the stationary ring rear cover plate 22 through a thread. The oil seal 26 can prevent liquid from permeating, the oil seal cover plate 27 can fix the oil seal, and the oil seal cover plate 27 is connected with the stationary ring rear cover plate 22 through threads so as to be convenient to detach.

Preferably, as shown in fig. 1 and 2, the front cover body 4 and the pump cover 6 are further provided with a front cover pressing plate 28 and a pump cover pressing plate 29, the front cover body 4 and the pump cover pressing plate 29 are respectively abutted against two sides of the pump body 5, the front cover pressing plate 28 and the pump cover pressing plate 29 can fix the pump body through a plurality of bolts in fixed connection, and can be conveniently detached and cleaned.

Preferably, as shown in fig. 1 and fig. 2, a front bearing 30 and a plurality of rear bearings 31 are further disposed in the suspension body 1, a front bearing cover plate 32 is disposed on one side of the front bearing 30 close to the pump body 5, the front bearing cover plate 32 is connected to the suspension body 1 through a plurality of bolts, one side of the front bearing 30 abuts against a limit step on the driving shaft 9, and the other side of the front bearing 30 abuts against the front bearing cover plate 32; the rear bearing 31 at the outermost side is provided with a rear bearing cover plate 33 at one side far away from the pump body 5, the rear bearing cover plate 33 is connected with the suspension body 1 through a plurality of bolts, the rear bearing 31 at the outermost side is abutted against the rear bearing cover plate 33, and the rear bearing 31 at the innermost side is abutted against a limit step on the driving shaft 9.

The front bearing 30 and the rear bearings 31 can reduce the abrasion of the driving shaft, the front bearing cover plate 32 and the rear bearing cover plate 33 can respectively limit the front bearing 30 and the rear bearings 31 to prevent the front bearing 30 and the rear bearings 31 from loosening, and the front bearing cover plate 32 and the rear bearing cover plate 33 are connected with the suspension body through bolts to be conveniently detached.

Preferably, as shown in fig. 1 and 2, the impeller 8 is detachably connected with the end of the driving shaft 9 through a fixing pin 34, so that the impeller can be conveniently detached and cleaned, the driving shaft does not need to be replaced when the impeller is worn, and the cover plate 6 is further provided with a hollow groove which can reduce the weight of the cover plate.

The utility model discloses a theory of operation is: the mechanical sealing structure 3 between the pump body assembly 2 and the suspension frame body 1 can prevent liquid from permeating into the suspension frame body 1, the wear-resisting assembly 11 on the driving shaft 9 can prevent the driving shaft from being worn, the frequency of the driving shaft is reduced, the replacement cost is reduced, and the service life of the slurry pump is prolonged; when the suspension is used, the driving shaft 9 is externally connected with a driving mechanism, the elongated limiting groove 10 can be conveniently connected with the driving mechanism, the driving mechanism can drive the driving shaft 9 to rotate, the driving shaft 9 can drive the impeller to rotate, so that slurry is sucked from the inlet hole 12 and is output from the outlet hole under the centrifugal action, and the mechanical sealing structure 3 can seal to prevent the slurry from entering the suspension body; wear-resisting cover 13 can prevent drive shaft 9 wearing and tearing, the material of wear-resisting cover can be the higher high chrome alloy of hardness, oil blanket 26 can prevent liquid infiltration, oil blanket apron 27 can be fixed the oil blanket, oil blanket apron 27 is connected through the screw thread and can conveniently be dismantled with quiet ring rear cover plate 22, fore bearing 30 and a plurality of rear bearing 31 can reduce the drive shaft wearing and tearing, fore bearing apron 32 and rear bearing apron 33 can be spacing fore bearing 30 and a plurality of rear bearing 31 respectively, prevent it not hard up, fore bearing apron 32 and rear bearing apron 33 pass through the bolt and can conveniently dismantle with the suspension body is continuous.

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.

Claims

1. A long-life slurry pump comprises a suspension body (1) and a pump body assembly (2), wherein the suspension body (1) and the pump body assembly (2) are detachably connected, and the long-life slurry pump is characterized in that a mechanical sealing structure (3) is further arranged between the pump body assembly (2) and the suspension body (1), the pump body assembly (2) comprises a front cover body (4), a pump body (5) and a pump cover (6), a stirring cavity (7) is arranged in the pump body (5), an impeller (8) is arranged in the stirring cavity (7), a driving shaft (9) which is horizontally arranged and penetrates through the suspension body (1) is detachably and fixedly connected to the axis of the impeller (8), the tail end of the driving shaft (9) penetrates through the suspension body (1), a long-strip-shaped limiting groove (10) is formed in the tail end of the driving shaft (9), and a wear-resistant assembly (11) is further arranged on the driving shaft (9, preceding lid (4) on be equipped with and follow drive shaft (9) axial setting and with the hand hole (12) that stir chamber (7) link to each other, pump body (5) on be equipped with along drive shaft (9) radial setting and with the exit that stir chamber (7) link to each other.

2. A long life slurry pump according to claim 1, wherein the wear assembly (11) comprises a wear sleeve (13) fitted over the drive shaft (9).

3. The long-life slurry pump according to claim 1 or 2, wherein the mechanical sealing structure (3) comprises a transmission seat (14) sleeved on the driving shaft (9), one end of the transmission seat (14) is connected with the impeller (8) through a circumferential limiting structure, and the other end of the transmission seat abuts against a limiting step on the driving shaft (9).

4. The long-life slurry pump according to claim 3, wherein the drive shaft (9) on still overlap and be equipped with rotating ring (15), rotating ring (15) lateral wall and transmission seat (14) inboard support and lean on, still be equipped with rotating ring O type sealing washer (16) between transmission seat (14) and rotating ring (15), rotating ring (15) and transmission seat (14) between through a plurality of locating pins (17) fixed connection, drive shaft (9) on still overlap and be equipped with quiet ring (18), quiet ring (18) and rotating ring (15) between still be equipped with a plurality of No. one bearing (19), a bearing housing on drive shaft (9) and No. one bearing (19) lateral wall and quiet ring (18) or rotating ring (15) support and lean on the inside wall.

5. The long-life slurry pump according to claim 4, wherein a stationary ring gland (20) is further arranged in the suspension body (1), the stationary ring gland (20) is connected with the pump cover (6) through a circumferential limiting structure, the bottom of the stationary ring gland (20) is abutted against the top of the stationary ring (18), and a stationary ring O-shaped sealing ring (21) is arranged between the stationary ring gland (20) and the stationary ring (18).

6. The long-life slurry pump according to claim 5, wherein a stationary ring back cover plate (22) is further sleeved on the driving shaft (9), the middle part of the stationary ring rear cover plate (22) is abutted against the stationary ring gland (20) and the inner side of the middle part of the stationary ring rear cover plate (22) is abutted against the stationary ring (18) through a pressure ring (23), the compression ring (23) is connected with the stationary ring rear cover plate (22) through a circumferential limiting structure, the outer side and the inner side of the pressing ring (23) are respectively abutted against the static ring gland (20) and the pressing ring (23), a spring (50) is arranged between the compression ring (23) and the stationary ring rear cover plate (22), the outer side of the stationary ring rear cover plate (22) is connected with the pump cover (6) through a plurality of first bolts (24), the middle part of the stationary ring rear cover plate (22) is connected with the stationary ring gland (20) through a plurality of second bolts (25), the static ring (18) is connected with the pressure ring (23) through a plurality of positioning pins (17).

7. The long-life slurry pump according to claim 6, wherein an oil seal (26) is further arranged on one side, away from the compression ring (23), of the stationary ring rear cover plate (22), and an oil seal cover plate (27) is further connected onto the stationary ring rear cover plate (22) through threads.

8. The long-life slurry pump according to claim 1 or 2, wherein the front cover body (4) and the pump cover (6) are respectively provided with a front cover pressing plate (28) and a pump cover pressing plate (29), the front cover body (4) and the pump cover pressing plate (29) are respectively abutted against two sides of the pump body (5), and the front cover pressing plate (28) and the pump cover pressing plate (29) are fixedly connected through a plurality of bolts.

9. The long-life slurry pump according to claim 1 or 2, wherein a front bearing (30) and a plurality of rear bearings (31) are further arranged in the suspension body (1), a front bearing cover plate (32) is arranged on one side, close to the pump body (5), of the front bearing (30), the front bearing cover plate (32) is connected with the suspension body (1) through a plurality of bolts, one side of the front bearing (30) abuts against a limiting step on the driving shaft (9), and the other side of the front bearing (30) abuts against the front bearing cover plate (32);

rear bearing (31) in the outside keep away from pump body (5) one side and be equipped with rear bearing apron (33), rear bearing apron (33) link to each other with suspension body (1) through a plurality of bolts, rear bearing (31) in the outside support with rear bearing apron (33) and lean on, spacing step on most inboard rear bearing (31) and drive shaft (9) supports and leans on.

10. The long-life slurry pump according to claim 1 or 2, wherein the impeller (8) is detachably connected with the end of the driving shaft (9) through a fixing pin (34), and the pump cover (6) is further provided with a hollow groove.