Pump

Abstract

The utility model discloses a pump which comprises a fixed assembly, a sliding assembly, a pump body and a lifting assembly, and the sliding assembly is connected to the fixed assembly in a sliding mode. The pump body comprises a shell, an impeller and a first driving part, the shell is fixed relative to the fixed assembly or connected to the sliding assembly, the impeller is rotationally arranged in the shell, and when the shell is fixed relative to the fixed assembly, the impeller can slide out of or slide into the shell in the sliding direction of the sliding assembly; the first driving piece is connected to the impeller and the sliding assembly and used for driving the impeller to rotate. The fixed end of the lifting assembly is connected with the fixed assembly, and the lifting end is connected to the sliding assembly and used for driving the sliding assembly, the impeller and the first driving part to ascend and descend. The impeller can be effectively prevented from being immersed in a metal solution for a long time, and the service life of the impeller can be prolonged.

Description

Technical Field

[0001] The utility model relates to the field of pumps, in particular to a pump. Background Art

[0002] In the metallurgical smelting industry, during the smelting process of non-ferrous metals such as aluminum, magnesium, zinc, and tin, the non-ferrous metals melt to form liquid metal. In order to transport or drive the metal solution to circulate, a metallurgical pump is needed. The metallurgical pump can be used to transport the metal liquid or to drive the metal liquid in the pool to circulate.

[0003] The patent with announcement number CN209621629U discloses a high-temperature molten metal transfer pump for conveying a medium, including a pump body, a non-stick metal liquid casing, a driving motor, an open impeller shaft, an open impeller, a liquid lifting pipeline and a concentricity clamping plate; two mutually connected pump chambers are arranged inside the pump body; one pump chamber has openings extending through the top and bottom, the lower opening is a liquid inlet, and the upper opening is connected to the non-stick metal liquid casing, a driving motor is arranged at the top of the non-stick metal liquid casing, an open impeller shaft is connected below the driving motor, the end of the open impeller shaft falls into the pump chamber with the openings extending through the top and bottom, and an open impeller is arranged; the upper opening of the other pump chamber is connected to the liquid lifting pipeline, and the upper opening of the liquid lifting pipeline is a liquid outlet; a concentricity clamping plate is arranged at the connection between the driving motor and the non-stick metal liquid casing, the concentricity clamping plate extends to fix the open impeller shaft, and the concentricity clamping plate sleeve fixes the liquid lifting pipeline.

[0004] The impeller of the above-mentioned pump is immersed in the metal liquid for a long time whether it is in operation or not. Since the impeller is immersed in the metal liquid for a long time, it will be subjected to a high temperature. The long-term high temperature will affect the life of the impeller. Utility Model Content

[0005] In view of this, it is necessary to provide a pump to solve the technical problem in the prior art that the pump is always immersed in the metal liquid, which affects the service life of the impeller.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model provides a pump, comprising:

[0007] Fixing components;

[0008] A sliding component, wherein the sliding component is slidably connected to the fixed component;

[0009] A pump body, comprising a casing, an impeller and a first driving member, wherein the casing is fixed relative to the fixed assembly or connected to the sliding assembly, the impeller is rotatably built into the casing, and when the casing is fixed relative to the fixed assembly, the impeller can slide out of or into the casing along the sliding direction of the sliding assembly; the first driving member is connected to the impeller and the sliding assembly, and is used to drive the impeller to rotate;

[0010] A lifting component, wherein the fixed end of the lifting component is connected to the fixed component, and the lifting end is connected to the sliding component, and is used to drive the sliding component, the impeller and the first driving member to rise and fall.

[0011] In one embodiment, the housing is detachably connected to the sliding assembly.

[0012] In one embodiment, an opening communicating with the interior of the housing is formed on a side of the housing opposite to the sliding assembly, and the impeller can slide into or out of the housing through the opening.

[0013] In one embodiment, a liquid inlet is provided on a side of the shell away from the sliding assembly, and a liquid outlet is provided on a peripheral wall, and the liquid inlet and the liquid outlet are both in communication with the interior of the shell.

[0014] In one embodiment, the pump body further includes at least one connecting member, one end of which is connected to the housing, and the other end of which is detachably connected to the sliding assembly.

[0015] In one embodiment, the sliding component is provided with at least one fixing hole along the sliding direction, and the connecting member includes a first tapered sleeve, a connecting portion and a second tapered sleeve. The first tapered sleeve is arranged on a side of the sliding component away from the shell and is arranged relative to the fixing hole. The outer diameter of the first tapered sleeve gradually decreases in a direction away from the shell. One end of the connecting portion is connected to the shell, and the other end is slidably inserted in the fixing hole and the first tapered sleeve. The second tapered sleeve can be slidably sleeved on the connecting portion and is slidably connected to the sliding component along the axial direction of the fixing hole. The second tapered sleeve abuts against the peripheral wall of the first tapered sleeve. The second tapered sleeve is used to provide the first tapered sleeve with an extrusion force to contract toward the center so that the first tapered sleeve clamps the connecting portion.

[0016] In one embodiment, the inner wall of the second tapered sleeve at one end close to the sliding component is tapered, and the inner diameter of the tapered inner wall of the second tapered sleeve gradually increases in a direction close to the sliding component.

[0017] In one embodiment, the connecting member also includes a fixing sleeve, which is connected to the fixing assembly, and an annular cavity is formed in the fixing sleeve, and the annular cavity is coaxially arranged with the fixing hole, the first conical sleeve is slidably inserted into the annular cavity, and the second conical sleeve is detachably connected to the fixing sleeve via a threaded member.

[0018] In one embodiment, the pump body further comprises a connecting shaft, one end of which is connected to the impeller, and the other end of which slides through the casing through the opening, and the first driving member is detachably connected to the connecting shaft and connected to the impeller through the connecting shaft.

[0019] In one embodiment, the lifting assembly includes a screw rod, a nut and a second driving member. The screw rod is arranged along the sliding direction of the sliding assembly and is rotatably connected to the fixed assembly around its own axis. The nut is threadedly connected to the screw rod. The second driving member connects the screw rod and the fixed assembly to drive the screw rod to rotate around its own axis.

[0020] Compared with the prior art, the beneficial effects of the utility model include: when it is necessary to take out the molten metal liquid in the pool body, or when it is necessary to drive the molten metal liquid in the pool body to circulate, the lifting assembly will be started, the lifting assembly will drive the sliding assembly to slide, and the sliding assembly will drive the first driving member and the impeller to slide, so that the impeller slides into the pool body; then the first driving member is started, the first driving member drives the impeller to rotate, and the rotating impeller drives the metal liquid to enter the shell and be discharged from the shell, so that the metal liquid can circulate in the pool body or pump the metal liquid out of the pool body.

[0021] When the shell is fixed relative to the fixed component, the shell is fixed in the pool body. The shell can be a part of the pool body or an additional high-temperature resistant structure fixed in the pool body; start the lifting component, and the lifting component drives the impeller to slide in or out of the shell. The impeller can be controlled to float out of the liquid as needed to avoid the impeller being immersed in the metal liquid for a long time, and to avoid long-term high temperature affecting the life of the impeller. The liftable impeller is also easy to inspect and replace.

[0022] When the casing is slidably connected to the sliding assembly, the impeller can be rotatably built into the casing, or it can slide into or out of the casing along the sliding direction of the sliding assembly; start the lifting assembly, and the lifting assembly drives the impeller and the casing to slide, and the impeller and the casing can be controlled to float to the liquid surface as needed, avoiding the impeller and the casing to be immersed in the metal liquid for a long time, avoiding long-term high temperature affecting the life of the impeller and the casing, and the liftable impeller and casing are also easy to inspect and replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of a pump according to an embodiment of the utility model;

[0024] Figure 2 It is a three-dimensional schematic diagram of a pump according to an embodiment of the utility model;

[0025] Figure 3 It is a three-dimensional schematic diagram of a pump according to an embodiment of the utility model;

[0026] Figure 4 is a cross-sectional view of a pump according to an embodiment of the utility model;

[0027] Figure 5 It is a partial structural schematic diagram of a sliding assembly and a connecting piece in a pump described in an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] Fixing component 1;

[0030] Sliding component 2;

[0031] Pump body 3;

[0032] Housing 31;

[0033] Liquid inlet 31a;

[0034] Liquid outlet 31b;

[0035] Impeller 32;

[0036] A first driving member 33;

[0037] Connector 34;

[0038] A first conical sleeve 341;

[0039] Connecting portion 342;

[0040] A second conical sleeve 343;

[0041] Fixed sleeve 344;

[0042] Threaded member 345;

[0043] Connecting shaft 35;

[0044] Lifting assembly 4;

[0045] Screw rod 41;

[0046] Nut 42;

[0047] The second driving member 43 . DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0049] like Figures 1 to 5As shown, the utility model provides a pump, including a fixed component 1, a sliding component 2, a pump body 3 and a lifting component 4, wherein the sliding component 2 is slidably connected to the fixed component 1; the pump body 3 includes a shell 31, an impeller 32 and a first driving member 33, the shell 31 is fixed relative to the fixed component 1, or is connected to the sliding component 2, the impeller 32 is rotatably built into the shell 31, and when the shell 31 is fixed relative to the fixed component 1, the impeller 32 can slide into or slide into the shell 31 along the sliding direction of the sliding component 2; the first driving member 33 is connected to the impeller 32 and the sliding component 2, and is used to drive the impeller 32 to rotate; the fixed end of the lifting component 4 is connected to the fixed component 1, and the lifting end is connected to the sliding component 2, and is used to drive the sliding component 2, the impeller 32 and the first driving member 33 to rise and fall. It should be understood that the fixed component 1 and the sliding component 2 can be slidably connected by means of guide rails and sliders, or by providing a slide groove on the fixed component 1 so that part of the sliding component 2 is slidably embedded in the slide groove to achieve a sliding connection between the sliding component 2 and the fixed component 1. The manner of sliding connection between the sliding component 2 and the fixed component 1 is not limited to this; it should be understood that the fixed component 1 and the sliding component 2 can be brackets, support blocks, support plates, etc. formed by splicing profiles; it should be understood that the first driving member 33 can be an electric motor, a hydraulic motor, etc.

[0050] When it is necessary to take out the molten metal liquid in the pool body, or to drive the molten metal liquid in the pool body to circulate, the lifting component 4 will be started, the lifting component 4 drives the sliding component 2 to slide, and the sliding component 2 drives the first driving member 33 and the impeller 32 to slide, so that the impeller 32 slides into the pool body; then the first driving member 33 is started, and the first driving member 33 drives the impeller 32 to rotate, and the rotating impeller 32 drives the metal liquid to enter the shell 31 and be discharged from the shell 31, so that the metal liquid can circulate in the pool body or pump the metal liquid out of the pool body.

[0051] When the shell 31 is fixed relative to the fixed component 1, the shell 31 is fixed in the pool body. The shell 31 can be a part of the pool body or a high-temperature resistant structure additionally fixed in the pool body. The lifting component 4 is started, and the lifting component 4 drives the impeller 32 to slide in or out of the shell 31. The impeller 32 can be controlled to float out of the liquid surface as needed to avoid the impeller 32 being immersed in the metal liquid for a long time, and to avoid long-term high temperature affecting the life of the impeller 32. In addition, the liftable impeller 32 is also convenient for maintenance and replacement.

[0052] When the shell 31 is slidably connected to the sliding component 2, the impeller 32 can be rotatably built into the shell 31, and can also slide into or out of the shell 31 along the sliding direction of the sliding component 2; start the lifting component 4, the lifting component 4 drives the impeller 32 and the shell 31 to slide, and the impeller 32 and the shell 31 can be controlled to float to the liquid surface as needed, so as to avoid the impeller 32 and the shell 31 being immersed in the metal liquid for a long time, and to avoid long-term high temperature affecting the life of the impeller 32 and the shell 31, and the liftable impeller 32 and the shell 31 are also convenient for maintenance and replacement.

[0053] In one embodiment, the housing 31 is detachably connected to the sliding assembly 2 .

[0054] Through the above arrangement, the sliding component 2 can drive the housing 31 to slide during the sliding process. When the impeller 32 needs to be replaced, the housing 31 can be removed from the sliding component 2 and then the impeller 32 can be replaced.

[0055] In one embodiment, an opening communicating with the interior of the housing 31 is formed on one side of the housing 31 opposite to the sliding assembly 2 , and the impeller 32 can slide into or out of the housing 31 through the opening.

[0056] Through the above arrangement, the impeller 32 can slide into the housing 31 through the opening, thereby achieving the sliding of the impeller 32 relative to the housing 31 .

[0057] In one embodiment, a liquid inlet 31 a is provided on a side of the housing 31 away from the sliding assembly 2 , and a liquid outlet 31 b is provided on the peripheral wall. The liquid inlet 31 a and the liquid outlet 31 b are both connected to the interior of the housing 31 .

[0058] Since the liquid inlet 31a is arranged on the side of the shell 31 away from the sliding assembly 2, after the sliding assembly 2 drives the shell 31 to slide into the metal liquid, the liquid inlet 31a faces downward. When the shell 31 slides into the metal liquid, the liquid inlet 31a is located below the liquid surface, which can effectively prevent scum floating on the liquid surface from entering the liquid inlet 31a.

[0059] In one embodiment, the pump body 3 further includes at least one connecting member 34, one end of the connecting member 34 is connected to the housing 31, and the other end is detachably connected to the sliding assembly 2. It should be understood that the connecting member 34 and the sliding assembly 2 can be detachably connected by means of screws, bolts, buckles, etc. It should be understood that the number of the connecting members 34 can be one, two, three, etc.

[0060] By providing the connecting piece 34, a detachable connection between the housing 31 and the sliding assembly 2 is achieved, and the housing 31 and the sliding assembly 2 are spaced apart. When the housing 31 is immersed in the metal liquid, the sliding assembly 2 is still located above the liquid surface.

[0061] In one embodiment, the sliding assembly 2 is provided with at least one fixing hole along the sliding direction, and the connecting member 34 includes a first tapered sleeve 341, a connecting portion 342 and a second tapered sleeve 343. The first tapered sleeve 341 is arranged on the side of the sliding assembly 2 away from the housing 31 and is arranged relative to the fixing hole. The outer diameter of the first tapered sleeve 341 gradually decreases in the direction away from the housing 31. One end of the connecting portion 342 is connected to the housing 31, and the other end is slidably inserted in the fixing hole and the first tapered sleeve 341. The second tapered sleeve 343 is slidably sleeved on the connecting portion 342 and is slidably connected to the sliding assembly 2 along the axial direction of the fixing hole. The second tapered sleeve 343 abuts against the peripheral wall of the first tapered sleeve 341. The second tapered sleeve 343 is used to provide the first tapered sleeve 341 with an extrusion force that contracts toward the center, so that the first tapered sleeve 341 clamps the connecting portion 342. It should be understood that the connecting portion 342 can be a cylinder, a polygonal column, a rod, etc.

[0062] When it is necessary to achieve a detachable connection between the shell 31 and the sliding assembly 2, the connecting portion 342 is slid through the fixing hole and the first conical sleeve 341, and then the second conical sleeve 343 is sleeved on the connecting portion 342 and connected to the sliding assembly 2. In the process of connecting the second conical sleeve 343 to the sliding assembly 2, the second conical sleeve 343 gradually approaches the sliding assembly 2, and the second conical sleeve 343 gradually squeezes the outer wall of the first conical sleeve 341, so that the first conical sleeve 341 shrinks toward the center and abuts against the outer wall of the connecting portion 342. Finally, the first conical sleeve 341 clamps the outer wall of the connecting portion 342 and fixes the connecting portion 342 to the sliding assembly 2. When it is necessary to separate the shell 31 from the sliding assembly 2, the second conical sleeve 343 is driven to move in the direction away from the sliding assembly 2, and the first conical sleeve 341 is reset under the action of its own elastic reset force, and the connecting portion 342 is released, so that the disassembly and connection of the connecting portion 342 and the sliding assembly 2 can be achieved more conveniently and quickly.

[0063] In one embodiment, the inner wall of the second tapered sleeve 343 at one end close to the sliding component 2 is tapered, and the inner diameter of the tapered inner wall of the second tapered sleeve 343 gradually increases in a direction close to the sliding component 2 .

[0064] Through the above arrangement, when the second tapered sleeve 343 clamps the peripheral wall of the first tapered sleeve 341 , the second tapered sleeve 343 gradually applies a clamping force to the first tapered sleeve 341 , forcing the first tapered sleeve 341 to gradually clamp the connecting portion 342 toward the center.

[0065] In one embodiment, the connecting member 34 further includes a fixing sleeve 344, which is connected to the fixing assembly 1, and an annular cavity is formed in the fixing sleeve 344, which is coaxially arranged with the fixing hole, and the first tapered sleeve 341 is slidably built into the annular cavity, and the second tapered sleeve 343 is detachably connected to the fixing sleeve 344 through a threaded member 345. It should be understood that the threaded member 345 can be a bolt, a screw, etc.; it should be understood that a washer (not shown in the figure) can also be arranged between the second tapered sleeve 343 and the fixing sleeve 344, and the washer is sleeved on the threaded member 345 and arranged one-to-one with the threaded member 345.

[0066] Through the above arrangement, when it is necessary to drive the first conical sleeve 341 to clamp the connecting part 342, the second conical sleeve 343 is threadedly connected to the fixed sleeve 344 through the threaded member 345. During the rotation of the threaded member 345, the second conical sleeve 343 gradually approaches the fixed sleeve 344, so that the second conical sleeve 343 gradually applies a clamping force to the first conical sleeve 341, so that when the second conical sleeve 343 moves in the direction close to the fixed sleeve 344, the first conical sleeve 341 gradually clamps the connecting part 342.

[0067] In one embodiment, the pump body 3 also includes a connecting shaft 35, one end of the connecting shaft 35 is connected to the impeller 32, and the other end slides through the shell 31 through the opening. The first driving member 33 is detachably connected to the connecting shaft 35 and connected to the impeller 32 via the connecting shaft 35.

[0068] By setting the connecting shaft 35, the connection between the first driving member 33 and the impeller 32 is achieved, and the interval setting between the first driving member 33 and the impeller 32 is achieved, which can reduce the transfer of heat from the impeller 32 to the first driving member 33. When the impeller 32 is immersed in the metal liquid, the first driving member 33 can still be located on the liquid surface and will not contact the metal liquid.

[0069] In one embodiment, the lifting assembly 4 includes a screw 41, a nut 42 and a second driving member 43. The screw 41 is arranged along the sliding direction of the sliding assembly 2 and is rotatably connected to the fixed assembly 1 around its own axis. The nut 42 is threadedly connected to the screw 41. The second driving member 43 connects the screw 41 and the fixed assembly 1 to drive the screw 41 to rotate around its own axis. It should be understood that the lifting assembly 4 can also be a cylinder, a hydraulic cylinder, an electric push rod, etc.; it should be understood that the second driving member 43 can be a motor with a reducer, a direct drive motor, a hydraulic motor, etc.

[0070] When it is necessary to drive the sliding component 2 to rise or fall relative to the fixed component 1, the second driving member 43 is started, and the second driving member 43 drives the screw rod 41 to rotate. The rotating screw rod 41 drives the nut 42 to move, and the nut 42 drives the sliding component 2 to move relative to the fixed component 1, thereby realizing the lifting and lowering of the sliding component 2 relative to the fixed component 1.

[0071] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A pump, characterized in that: include: Fixing components; A sliding component, wherein the sliding component is slidably connected to the fixed component; A pump body, comprising a housing, an impeller and a first driving member, wherein the housing is fixed relative to the fixed assembly or connected to the sliding assembly, the impeller is rotatably built into the housing, and when the housing is fixed relative to the fixed assembly, the impeller can slide out of or into the housing along the sliding direction of the sliding assembly; The first driving member is connected to the impeller and the sliding assembly, and is used to drive the impeller to rotate; A lifting component, wherein the fixed end of the lifting component is connected to the fixed component, and the lifting end is connected to the sliding component, and is used to drive the sliding component, the impeller and the first driving member to rise and fall.

2. The pump according to claim 1, characterized in that The housing is detachably connected to the sliding assembly.

3. The pump according to claim 1, characterized in that An opening communicating with the interior of the housing is provided on one side of the housing opposite to the sliding assembly, and the impeller can slide into or out of the housing through the opening.

4. The pump according to claim 1, characterized in that A liquid inlet is provided on one side of the shell away from the sliding assembly, and a liquid outlet is provided on the peripheral wall. The liquid inlet and the liquid outlet are both communicated with the interior of the shell.

5. The pump according to claim 2, characterized in that The pump body further comprises at least one connecting member, one end of which is connected to the housing, and the other end of which is detachably connected to the sliding assembly.

6. The pump according to claim 5, characterized in that The sliding component is provided with at least one fixing hole along the sliding direction, and the connecting piece includes a first tapered sleeve, a connecting portion and a second tapered sleeve. The first tapered sleeve is arranged on a side of the sliding component away from the shell and is arranged relative to the fixing hole. The outer diameter of the first tapered sleeve gradually decreases in the direction away from the shell. One end of the connecting portion is connected to the shell, and the other end is slidably inserted in the fixing hole and the first tapered sleeve. The second tapered sleeve is slidably sleeved on the connecting portion and is slidably connected to the sliding component along the axial direction of the fixing hole. The second tapered sleeve abuts against the peripheral wall of the first tapered sleeve. The second tapered sleeve is used to provide the first tapered sleeve with an extrusion force to contract toward the center, so that the first tapered sleeve clamps the connecting portion.

7. The pump according to claim 6, characterized in that The inner wall of the second tapered sleeve at one end close to the sliding component is tapered, and the inner diameter of the tapered inner wall of the second tapered sleeve gradually increases in a direction close to the sliding component.

8. The pump according to claim 6, characterized in that The connecting member also includes a fixing sleeve, which is connected to the fixing assembly. An annular cavity is formed in the fixing sleeve, and the annular cavity is coaxially arranged with the fixing hole. The first conical sleeve is slidably inserted into the annular cavity, and the second conical sleeve is detachably connected to the fixing sleeve via a threaded member.

9. The pump according to claim 3, characterized in that The pump body further comprises a connecting shaft, one end of which is connected to the impeller, and the other end of which slides through the casing via the opening; the first driving member is detachably connected to the connecting shaft and connected to the impeller via the connecting shaft.

10. The pump according to claim 1, characterized in that The lifting assembly includes a screw rod, a nut and a second driving member. The screw rod is arranged along the sliding direction of the sliding assembly and is rotatably connected to the fixed assembly around its own axis. The nut is threadedly connected to the screw rod. The second driving member connects the screw rod and the fixed assembly and is used to drive the screw rod to rotate around its own axis.

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