CN117366001B - A sealing structure for a multi-stage pump used in mining - Google Patents
A sealing structure for a multi-stage pump used in miningInfo
- Publication number
- CN117366001B CN117366001B CN202311439536.9A CN202311439536A CN117366001B CN 117366001 B CN117366001 B CN 117366001B CN 202311439536 A CN202311439536 A CN 202311439536A CN 117366001 B CN117366001 B CN 117366001B
- Authority
- CN
- China
- Prior art keywords
- pipe
- rotating
- rotating tube
- block
- outer pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明公开了一种用于矿用多级泵的密封结构，涉及泵的密封结构技术领域，包括内管道和内管道外部设置的外管道，所述内管道的内壁上设置有环形凸起，所述环形凸起与内管道之间设置有U型橡胶圈，所述外管道的一端呈圆周阵列设置有多个导向柱，所述导向柱与外管道垂直设置，且贯穿外管道，本发明通过转动搬动杆，搬动杆转动会带动旋转管一转动，旋转管一通过驱动杆同步带动旋转管二转动，旋转管一转动会带动梯形块一移动，挤压梯形块二，进而通过导向柱和弹簧一带动夹持块从外部对连通管进行夹持固定；旋转管二转动会带动梯形块三转动，进而挤压梯形块四，进而通过导向柱一和弹簧三对型橡胶圈的倾斜边进行挤压，进行密封，密封效果更好。
The present invention discloses a sealing structure for a multi-stage pump for mining, which relates to the technical field of sealing structures of pumps, comprising an inner pipe and an outer pipe arranged outside the inner pipe, wherein an annular protrusion is provided on the inner wall of the inner pipe, a U-shaped rubber ring is provided between the annular protrusion and the inner pipe, and a plurality of guide columns are provided in a circumferential array at one end of the outer pipe, wherein the guide columns are arranged perpendicular to the outer pipe and pass through the outer pipe. The present invention rotates a moving rod, and the rotation of the moving rod drives the rotating tube 1 to rotate. The rotating tube 1 synchronously drives the rotating tube 2 to rotate through a driving rod. The rotation of the rotating tube 1 drives the trapezoidal block 1 to move, squeezes the trapezoidal block 2, and then drives the clamping block to clamp and fix the connecting pipe from the outside through the guide column and the spring 1; the rotation of the rotating tube 2 drives the trapezoidal block 3 to rotate, and then squeezes the trapezoidal block 4, and then squeezes the inclined edge of the U-shaped rubber ring through the guide column 1 and the spring 3 to perform sealing, thereby achieving better sealing effect.
Description
Technical Field
The invention relates to the technical field of pump body sealing, in particular to a sealing structure for a mining multistage pump.
Background
The multistage pump is to collect more than two centrifugal pumps with the same function together, and in the fluid channel structure, the medium pressure relief port of the first stage is communicated with the inlet of the second stage, the medium pressure relief port of the second stage is communicated with the inlet of the third stage, and the mechanism connected in series forms a multistage centrifugal structure.
The invention discloses a mining multistage centrifugal pump in the publication number CN115263763A, wherein the multistage centrifugal pump impeller comprises a movable blade plate and a fixed blade plate, the movable blade plate can move in the axial direction relative to the fixed blade plate, further the liquid inlet cavity volume between the movable blade plate and the fixed blade plate of the impeller is changed, the axial movement condition of the centrifugal pump is improved by matching with a balance disc, and meanwhile, when the liquid inlet cavity of the impeller is blocked, the distance between the movable blade plate and the fixed blade plate is increased, and the backwashing blocking removal is carried out, so that the functions are practical.
But this pump body can lead to its leakproofness to become poor after long-time use at the in-process of being connected with external communicating pipe, consequently set up a seal structure that is convenient for adjust rubber circle elasticity and synchronous centre gripping communicating pipe.
Disclosure of Invention
The invention aims to provide a sealing structure for a mining multistage pump, which solves the technical problem that the sealing performance of a rubber ring can be deteriorated after long-time use in the process of connecting a pump body with an external communicating pipe.
The aim of the invention can be achieved by the following technical scheme:
The utility model provides a seal structure for mining multistage pump, includes the outer pipeline that inner tube and inner tube outside set up, be provided with annular bulge on the inner wall of inner tube, be provided with U type rubber circle between annular bulge and the inner tube, the one end of outer pipeline is the circumference array and is provided with a plurality of guide posts, the guide post sets up perpendicularly with outer tube, and runs through outer tube, the fixed mounting of one end of guide post has the grip block, the other end fixed mounting of guide post has trapezoidal piece two, cup joint spring one on the guide post and between grip block and the outer tube inner wall;
The outer pipe is characterized in that a second rotating pipe and a first rotating pipe are symmetrically arranged at two ends of the outer pipe, a fixed ring is arranged on one side, adjacent to the second rotating pipe, of the first rotating pipe, a rotating ring is arranged on the opposite side of the second rotating pipe and the first rotating pipe, the second rotating pipe and the first rotating pipe are connected through a plurality of driving rods, a plurality of first trapezoid blocks are equidistantly arranged on the inner wall of the first rotating pipe, the first trapezoid blocks are matched with the second trapezoid blocks, and a moving rod is vertically arranged on the first rotating pipe.
The invention further provides a scheme that the other end of the outer pipeline is provided with a plurality of first guide posts in a circumferential array, the first guide posts are perpendicular to the outer pipeline, one end of each first guide post penetrates through the outer pipeline to be connected with a fourth trapezoidal block, the other end of each first guide post extends to one side of a U-shaped rubber ring arranged in the inner pipeline to be connected with the inner pipeline, a third spring is sleeved on the first guide post and located between the inner pipeline and the outer pipeline, a plurality of third trapezoidal blocks are equidistantly arranged on the inner wall of the second rotary pipe, and the third trapezoidal blocks are matched with the fourth trapezoidal blocks.
As a further scheme of the invention, an arc-shaped chute is arranged on a fixed ring on one side of the rotary pipe, limiting holes are arranged at two ends of the arc-shaped chute, a sliding sleeve is connected to the arc-shaped chute in a sliding manner, one end of the sliding sleeve, which is far away from the arc-shaped chute, is fixedly connected with the inner wall of the rotary pipe, a moving rod is horizontally connected to the sliding sleeve in a sliding manner, one end of the moving rod is inserted into the limiting holes, the other end of the moving rod extends out of the rotary pipe I, and a spring II is sleeved on the moving rod and positioned in the sliding sleeve.
As a further proposal of the invention, the inside of the annular bulge is connected with the inner wall supporting mechanism through supporting plates which are equidistantly arranged.
As a further scheme of the invention, the inner wall supporting mechanism comprises a hollow drain pipe, a plurality of air ducts are equidistantly arranged on the hollow drain pipe, push rods are connected in a sliding manner in the air ducts, a push block is fixedly arranged at one end of each push rod far away from each air duct, the push block is in sliding connection with the hollow drain pipe, rotating rods are connected to two sides of each push block in a rotating manner, the rotating rods are obliquely arranged, a spring IV is arranged at one end of each rotating rod far away from each push block, the spring IV is connected with a rubber block through a connecting block, two pairs of rotating connecting rods are symmetrically arranged at two sides of each rubber block, and the rotating connecting rods are in rotating connection with the hollow drain pipe.
As a further scheme of the invention, one end of the moving rod far away from the limiting hole is sleeved with a limiting sleeve, and the limiting sleeve is in threaded connection with the rotating ring.
As a further scheme of the invention, the outer wall of the annular bulge is provided with a trapezoid rubber ring, and the trapezoid rubber ring and the inclined side edges of the U-shaped rubber ring are symmetrically arranged.
The invention has the beneficial effects that:
The invention rotates the moving rod, the moving rod rotates to drive the rotating pipe to rotate, the rotating pipe synchronously drives the rotating pipe II to rotate through the driving rod, the rotating pipe I rotates to drive the trapezoid block I to move, the trapezoid block I contacts with the trapezoid block II in the rotating process, the trapezoid block II is extruded, the clamping block is driven by the guide post and the spring I to clamp and fix the communicating pipe from the outside, the rotating pipe II rotates to drive the trapezoid block III to rotate, the trapezoid block IV is extruded, the inclined edges of the rubber ring are extruded by the guide post I and the spring III to seal, the sealing effect is better, the structure is convenient for clamping and extruding sealing synchronously, the structure is also applicable to slightly larger communicating pipe, only clamping is more precise at the moment, but no other influence exists, the tightness of the U-shaped rubber ring can be adjusted under the action of the rubber clamping block, the sealing performance is prevented from being poor after long-time use, the installation and the disassembly are very convenient, and the sealing effect is not needed through bolts.
The inner wall supporting mechanism drives the rubber block to contact with the inner wall of the communicating pipe, is matched with the clamping block, clamps from the inside and the outside, has better clamping effect, and can not cause single clamping to deform the communicating pipe.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic elevational view of the present invention;
FIG. 3 is a schematic view of the internal structure of a first rotary pipe according to the present invention;
FIG. 4 is a schematic view of the internal structure of the sliding sleeve of the present invention;
FIG. 5 is a schematic view of the internal structure of a second rotary pipe according to the present invention;
FIG. 6 is a schematic side view of the U-shaped rubber ring of the present invention;
FIG. 7 is a schematic view of the installation structure of the trapezoidal rubber ring of the present invention;
fig. 8 is a schematic view of the whole structure of the inner wall supporting mechanism of the present invention.
The device comprises a first pipe, a second pipe, a first rotary pipe, a second rotary pipe, a first 4, a fixed ring, a second 5, a driving rod, a third 6, an inner wall supporting mechanism, a fourth 7, an inner pipe, a third 21, a fourth 22, a fourth 23, a first guide post, a third 24, a third spring, a moving rod, a third 32, a sliding sleeve, a third 33, an arc chute, a fourth 34, a limiting hole, a third 35, a fourth 36, a fourth 37, a clamping block, a fourth 38, a fourth 39, a guide post, a third 310, a fourth 311, a limiting sleeve, a fourth 61, a hollow drain pipe, a fourth 62, an air duct, a third 63, a push rod, a fourth 64, a push block, a fourth 65, a rotary rod, a fourth 67, a fourth 68, a rubber block, a fourth 71, an annular protrusion, a third 72, a supporting plate, a fourth 73, a U-shaped rubber ring, a 711 and a trapezoid rubber ring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, the invention discloses a sealing structure for a mining multistage pump, which comprises an inner pipeline 7 and an outer pipeline 1 arranged outside the inner pipeline 7, wherein an annular bulge 71 is arranged on the inner wall of the inner pipeline 7, a U-shaped rubber ring 73 is arranged between the annular bulge 71 and the inner pipeline 7, one end of the outer pipeline 1 is provided with a plurality of guide posts 39 in a circumferential array, the guide posts 39 are arranged vertically to the outer pipeline 1 and penetrate through the outer pipeline 1, one end of each guide post 39 is fixedly provided with a clamping block 37, each clamping block 37 is in a rubber structure, the other end of each guide post 39 is fixedly provided with a trapezoid block two 36, and a spring one 38 is sleeved between each clamping block 37 and the inner wall of the outer pipeline 1 on each guide post 39;
The outer two ends of the outer pipeline 1 are symmetrically provided with a rotating pipe II 2 and a rotating pipe I3, the adjacent sides of the rotating pipe II 2 and the rotating pipe I3 are respectively provided with a fixed ring 4, the opposite sides of the rotating pipe II 2 and the rotating pipe I3 are respectively provided with a rotating ring, the rotating pipe II 2 and the rotating pipe I3 are connected through a plurality of driving rods 5, a plurality of first trapezoid blocks 35 are equidistantly arranged on the inner wall of the rotating pipe I3, the first trapezoid blocks 35 are matched with the second trapezoid blocks 36, and the rotating pipe I3 is vertically provided with a moving rod 31.
The other end of the outer pipeline 1 is provided with a plurality of first guide posts 23 in a circumferential array, the first guide posts 23 are perpendicular to the outer pipeline 1, one end of each first guide post 23 penetrates through the outer pipeline 1 and is connected with the trapezoid block four 22, the other end of each first guide post extends to the inner pipeline 7 to be connected with one side of a U-shaped rubber ring 73 arranged in the inner pipeline 7, springs three 24 are sleeved on the first guide posts 23 and located between the inner pipeline 7 and the outer pipeline 1, a plurality of trapezoid blocks three 21 are equidistantly arranged on the inner wall of the rotary pipe two 2, and the trapezoid blocks three 21 are matched with the trapezoid blocks four 22.
Firstly, a communicating pipe is inserted into an inner pipeline 7, one end of the inner pipeline 7 is connected with a pump body, then a moving rod 31 is rotated, the moving rod 31 rotates to drive a first rotating pipe 3 to rotate, the first rotating pipe 3 synchronously drives a second rotating pipe 2 to rotate through a driving rod 5, the first rotating pipe 3 rotates to drive a first trapezoid block 35 to move, the first trapezoid block 35 contacts with a second trapezoid block 36 in the rotating process, the second trapezoid block 36 is extruded, and then a clamping block 37 is driven to clamp and fix the communicating pipe from the outside through a guide post 39 and a first spring 38; the arrangement of the structure is convenient for clamping and extruding sealing synchronously, and the structure can be suitable for a slightly bigger communicating pipe, only the clamping is more precise at the moment, but no other influence is caused, and meanwhile, the tightness of the U-shaped rubber ring can be adjusted under the action of the rubber clamping block, so that the tightness of the U-shaped rubber ring is prevented from being deteriorated after long-time use.
The fixed ring 4 at one side of the first rotary pipe 3 is provided with an arc-shaped chute 33, both ends of the arc-shaped chute 33 are provided with limiting holes 34, through the arrangement of the two limiting holes 34, not only is the moving rod 31 inserted into the limiting holes 34 to play a limiting role, but also a sliding sleeve 32 is slidably connected onto the arc-shaped chute 33 under the cooperation of the arc-shaped chute 33 to remind an operator that the moving rod is from the point A to the point B, so that the sliding sleeve 32 slides, one end of the sliding sleeve 32 far away from the arc-shaped chute 33 is fixedly connected with the inner wall of the first rotary pipe 3, and the sliding sleeve 32 is fixedly connected with the various structures of the first rotary pipe 3 through the arrangement of the sliding sleeve 32, so that pulling is more convenient in the pulling process, tension is not increased, the inner horizontal sliding of the sliding sleeve 32 is connected with the moving rod 31, one end of the moving rod 31 is inserted into the limiting holes 34, and the other end of the sliding sleeve 31 extends out of the first rotary pipe 3, and a second spring 310 is sleeved in the sliding sleeve 32.
Pulling the moving rod 31, then rotating the moving rod 31 to drive the first rotary pipe 3 to rotate, sliding the sliding sleeve 32 in the arc-shaped sliding groove 33, loosening the moving rod 31 after sliding to the top end, and inserting the moving rod 31 into the limiting hole 34 to limit the first rotary pipe 3.
The end of the moving rod 31 far away from the limiting hole 34 is sleeved with a limiting sleeve 311, the limiting sleeve 311 is in threaded connection with the rotating ring, and the limiting sleeve 311 is arranged through the limiting sleeve 311 so as to avoid the action of horizontal force when the moving rod 31 is positioned, and the reciprocating movement is easy to loosen, and the limiting sleeve 311 is convenient to fix through the threaded connection between the limiting sleeve 311 and the rotating ring.
The outer wall of the annular bulge 71 is provided with a trapezoid rubber ring 711, the trapezoid rubber ring 711 and the inclined side edges of the U-shaped rubber ring 73 are symmetrically arranged, mutual extrusion is performed to improve the sealing effect, when a pipeline is inserted between the annular bulge 71 and the inner pipeline 7, the trapezoid rubber ring 711 is extruded first, then the U-shaped rubber ring 73 is extruded, and layer-by-layer sealing connection is performed under the action of the U-shaped rubber ring 73 and the trapezoid rubber ring 711, so that leakage is avoided.
Example 2
Referring to fig. 1-8, the inner portion of the annular protrusion 71 is connected to the inner wall supporting mechanism 6 by a supporting plate 72 disposed at equal intervals. The inner wall supporting mechanism 6 comprises a hollow drain pipe 61, a plurality of air ducts 62 are equidistantly arranged on the hollow drain pipe 61, push rods 63 are slidably connected in the air ducts 62, push blocks 64 are fixedly arranged at one ends of the push rods 63 away from the air ducts 62, the push blocks 64 are slidably connected with the hollow drain pipe 61, rotating rods 65 are rotatably connected to two sides of the push blocks 64, the rotating rods 65 are obliquely arranged, springs four 66 are arranged at one ends of the rotating rods 65 away from the push blocks 64, the springs four 66 are connected with rubber blocks 68 through connecting blocks, two pairs of rotating connecting rods 67 are symmetrically arranged at two sides of the rubber blocks 68, and the rotating connecting rods 67 are rotatably connected with the hollow drain pipe 61.
When communicating pipe inserts, rubber piece 68 is in the shrink, then carries out the air entrainment pressurization to air duct 62, promotes push rod 63 and removes, and then drives push block 64 and remove, and push block 64 passes through the setting of dwang 65 and rotation connecting rod 67, and then drives rubber piece 68 and communicating pipe inner wall contact, cooperates with grip block 37, carries out the centre gripping from inside and outside, and the centre gripping effect is better to can not lead to single centre gripping to cause communicating pipe deformation yet.
The working principle of the invention is that a communicating pipe is firstly inserted into an inner pipe 7, one end of the inner pipe 7 is connected with a pump body, then a moving rod 31 is pulled, the moving rod 31 is rotated, and then the rotating pipe I3 is driven to rotate, a sliding sleeve 32 slides in an arc-shaped sliding groove 33, after the sliding sleeve slides to the top end, the moving rod 31 is loosened, the moving rod 31 is inserted into a limiting hole 34, and then the rotating pipe I3 is limited, and meanwhile, a rotating limiting sleeve 311 is limited, so as to avoid the action of horizontal force when the moving rod 31 is positioned, and the reciprocating motion is easy to loosen;
The arrangement of the structure is convenient for clamping and extrusion sealing synchronously, and the structure can be also suitable for a slightly larger communicating pipe, only the clamping is more precise at the moment, but no other influence is caused.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311439536.9A CN117366001B (en) | 2023-11-01 | 2023-11-01 | A sealing structure for a multi-stage pump used in mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311439536.9A CN117366001B (en) | 2023-11-01 | 2023-11-01 | A sealing structure for a multi-stage pump used in mining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117366001A CN117366001A (en) | 2024-01-09 |
| CN117366001B true CN117366001B (en) | 2025-09-23 |
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ID=89400208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311439536.9A Active CN117366001B (en) | 2023-11-01 | 2023-11-01 | A sealing structure for a multi-stage pump used in mining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117366001B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555188A (en) * | 2020-12-24 | 2021-03-26 | 铜陵通港流体机电科技有限责任公司 | Mechanical sealing device with good sealing performance for water pump |
| CN113202779A (en) * | 2021-05-20 | 2021-08-03 | 蒲雪计 | Multistage centrifugal pump with fast-assembly sealing mechanism and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9790960B2 (en) * | 2014-06-09 | 2017-10-17 | A.R. Wilfley & Sons, Inc. | Centrifugal pump with governor actuated seal |
| CN211118133U (en) * | 2019-12-25 | 2020-07-28 | 刘斌 | A fixed installation device for mining ventilation ducts |
| CN114688094A (en) * | 2022-04-06 | 2022-07-01 | 南京工业职业技术大学 | Sealing and connecting mechanism for double-suction centrifugal oil pump |
-
2023
- 2023-11-01 CN CN202311439536.9A patent/CN117366001B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555188A (en) * | 2020-12-24 | 2021-03-26 | 铜陵通港流体机电科技有限责任公司 | Mechanical sealing device with good sealing performance for water pump |
| CN113202779A (en) * | 2021-05-20 | 2021-08-03 | 蒲雪计 | Multistage centrifugal pump with fast-assembly sealing mechanism and method |
Also Published As
| Publication number | Publication date |
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| CN117366001A (en) | 2024-01-09 |
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