Method and device for disassembling impeller of slurry circulating pump

Abstract

The invention provides a slurry circulating pump impeller dismounting method and device, and the method comprises the steps: S1, separating an output shaft mounting seat from a motor, removing the limitation of an output shaft, and releasing the limitation of the end part of the output shaft on an impeller; s2, a vertical plate is arranged on the side, away from the output shaft, of the impeller, and the relative position of the vertical plate and the output shaft mounting base is fixed; s3, arranging a jack between the vertical plate and the output shaft; s4, jacking of the jack to the output shaft is relieved, the output shaft and the impeller are pushed to move in the direction where the impeller is located, a gap is formed between the impeller and the output shaft mounting base, and then a cushion block is plugged into the gap; s5, the jack abuts against the position between the vertical plate and the output shaft again, and then the output shaft is jacked to the side away from the impeller through the jack again; and S6, S4 and S5 are repeated until the impeller is separated from the output shaft, and disassembly is completed. According to the invention, the labor intensity of dismounting operation is greatly reduced, the work is rapid, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of impeller disassembly, and in particular to a disassembly method and a disassembly device for an impeller of a slurry circulation pump. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, in order to save energy and protect the environment, power plants are often equipped with absorber desulfurization, and the slurry circulation pump is the main component for the slurry circulation of the absorber. The end of the slurry circulation pump has an impeller. When maintaining and replacing the impeller, due to the large size of the impeller (about 1 to 1.5 meters in diameter), the impeller is difficult to remove from the output shaft of the motor;

[0004] In the prior art, when disassembling the impeller, the following method is often used: first, the output shaft mounting seat is separated from the motor, and then the limit of the output shaft is removed to allow the output shaft to move left and right (this is the structural feature of the existing slurry circulation pump itself and belongs to the prior art), and then the limit of the impeller and the end of the output shaft is released, and then the output shaft is moved in the opposite direction away from the impeller by knocking. After the output shaft moves to the point where it can no longer move (the left and right movement of the output shaft has a limit value, usually about 5-10CM), the output shaft is then moved with the impeller in the direction of the impeller. At this time, a gap is generated between the impeller and the motor output shaft mounting seat, and then a wedge block is inserted into the gap. By knocking the wedge block or the end of the output shaft, the impeller continues to move toward the end away from the output shaft until it is finally separated from the output shaft, completing the impeller disassembly operation.

[0005] The above method used in disassembling the impeller is labor-intensive and time-consuming, which is not conducive to improving work efficiency. For this reason, the present application specifically proposes a slurry circulation pump impeller disassembly method and disassembly device that saves time and effort when disassembling the impeller to solve the above problem. Summary of the invention

[0006] The main purpose of the present invention is to provide a method and a device for disassembling an impeller of a slurry circulation pump, which can save time and effort when disassembling the impeller.

[0007] To achieve the above object, the technical solution of the present invention is implemented as follows: a method for disassembling an impeller of a slurry circulation pump, comprising:

[0008] S1. Separate the output shaft mounting seat from the motor, then remove the limit of the output shaft, and release the limit of the output shaft end on the impeller;

[0009] S2. A vertical plate is arranged on the side of the impeller away from the output shaft, and the vertical plate is connected to the output shaft mounting seat so that the relative positions of the vertical plate and the output shaft mounting seat are fixed;

[0010] S3. A jack is arranged between the vertical plate and the output shaft, and the output shaft is pushed toward the side away from the impeller by the jack;

[0011] S4, releasing the jack from tightening the output shaft, and then pushing the output shaft together with the impeller to move in the direction where the impeller is located, so that a gap is generated between the impeller and the output shaft mounting seat, and then inserting a gasket into the gap;

[0012] S5. Tighten the jack between the vertical plate and the output shaft again, and then use the jack to push the output shaft toward the side away from the impeller;

[0013] S6. Repeat S4 and S5 until the impeller is separated from the output shaft and the disassembly is completed.

[0014] Furthermore, the vertical plate is connected to the output shaft mounting seat through a plurality of screws, one end of each screw is inserted into a through hole provided on the output shaft mounting seat, and one end of the screw passes through the through hole and is provided with a nut, and the nut is used to prevent the vertical plate from driving each screw to move in a direction away from the output shaft mounting seat;

[0015] After S4, the method further includes rotating the nut to move the nut to a predetermined distance in a direction away from the vertical plate.

[0016] A slurry circulation pump impeller disassembly device, used in conjunction with the above-mentioned slurry circulation pump impeller disassembly method, comprises a vertical plate, a plurality of screws and nuts, and also comprises an auxiliary disassembly assembly arranged on one side of an output shaft mounting seat, the auxiliary disassembly assembly comprises a fixing frame, and a first push plate, a second push plate and a movable pad arranged on the fixing frame;

[0017] The first push plate can extend into the output shaft mounting seat to push the output shaft in the output shaft mounting seat to move toward the side where the vertical plate is located; the second push plate abuts against one end of the vertical plate corresponding to the output shaft mounting seat to prevent the output shaft mounting seat from moving toward the side where the vertical plate is located; the movable pad can extend into the gap between the impeller and the output shaft mounting seat, and can move toward the side where the vertical plate is located, so as to prevent the impeller from moving toward the direction of the output shaft mounting seat.

[0018] Furthermore, the first pushing plate includes a first plate body, a first transverse pushing component and a first longitudinal pushing component, the first longitudinal pushing component is used to drive the first plate body to move toward and away from the output shaft mounting seat, and the first transverse pushing component is used to drive the first plate body to move toward and away from the vertical plate.

[0019] Furthermore, the second pushing plate includes a second plate body and a second longitudinal pushing component, and the second longitudinal pushing component is used to drive the second plate body to move in a direction approaching and away from the output shaft mounting seat.

[0020] Furthermore, the movable pad includes a third plate body, a second transverse pushing component and a third longitudinal pushing component, the third longitudinal pushing component is used to drive the third plate body to move toward and away from the output shaft mounting seat, and the second transverse pushing component is used to drive the third plate body to move toward and away from the vertical plate.

[0021] Furthermore, a bearing plate is provided on one side of the vertical plate corresponding to the impeller, and the bearing plate is used to bear the jack.

[0022] Furthermore, the vertical plate is provided with a reinforcing rib, the reinforcing rib passes through the center of the vertical plate, and one end of the jack is located at the center of the vertical plate, corresponding to the reinforcing rib.

[0023] Furthermore, the vertical plate is provided with a plurality of waist-shaped grooves corresponding to the screw rods for passing the screw rods.

[0024] The beneficial effects of the present invention are embodied in:

[0025] The present invention, by means of the unique structural features between the existing slurry circulation pump output shaft mounting seat and the output shaft, only needs to set up a vertical plate, and then use a jack to easily separate the impeller from the output shaft to complete the disassembly, the labor intensity of the disassembly operation is greatly reduced, and the work is quick and efficient, saving time and effort, and there is no need to worry about the problem of violent disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the attached picture:

[0027] Figure 1 It is a structural schematic diagram of the impeller disassembly device of the slurry circulation pump according to the present invention;

[0028] Figure 2 A top view of the slurry circulation pump impeller disassembly device of the present invention;

[0029] Figure 3 This is a disassembly operation state diagram of the impeller of the present invention (omitting the auxiliary disassembly components);

[0030] Figure 4 It is a structural schematic diagram of the vertical plate described in the present invention.

[0031] Description of reference numerals:

[0032] 1. Output shaft mounting seat; 2. Output shaft; 3. Impeller; 4. Vertical plate; 41. Load-bearing plate; 42. Reinforcing ribs; 43. Waist-shaped groove; 5. Jack; 6. Screw; 7. Nut; 8. Auxiliary disassembly assembly; 81. Fixed frame; 82. First push plate; 821. First plate body; 822. First horizontal push component; 823. First longitudinal push component; 83. Second push plate; 831. Second plate body; 832. Second longitudinal push component; 84. Movable pad; 841. Third plate body; 842. Second horizontal push component; 843. Third longitudinal push component. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0034] See also Figures 1 to 4 .

[0035] The invention discloses a method for disassembling an impeller of a slurry circulation pump, the method comprising:

[0036] S1. Separate the output shaft mounting base 1 from the motor, then remove the limit of the output shaft 2, so that the output shaft 2 can move left and right, and release the limit of the end of the output shaft 2 on the impeller 3, so that the impeller 3 can move relative to the output shaft 2;

[0037] S2. A vertical plate 4 is arranged on the side of the impeller 3 away from the output shaft 2, and the vertical plate 4 is connected to the output shaft mounting seat 1 so that the relative positions of the vertical plate 4 and the output shaft mounting seat 1 are fixed;

[0038] S3, a jack 5 is arranged between the vertical plate 4 and the output shaft 2, and the output shaft 2 is pushed toward a side away from the impeller 3 by the jack 5;

[0039] S4, release the jack 5 from tightening the output shaft 2, and then push the output shaft 2 together with the impeller 3 to move in the direction where the impeller 3 is located, so that a gap is generated between the impeller 3 and the output shaft mounting seat 1, and then insert a gasket into the gap;

[0040] S5, re-tighten the jack 5 between the vertical plate 4 and the output shaft 2, and then use the jack 5 to push the output shaft 2 toward the side away from the impeller 3;

[0041] S6. Repeat S4 and S5 until the impeller 3 is separated from the output shaft 2, and the disassembly is completed.

[0042] The present invention, by means of the unique structural feature between the output shaft mounting base 1 and the output shaft 2 of the slurry circulation pump (i.e., the structural feature that "after removing the limit of the output shaft 2, the output shaft 2 can move left and right"), only needs to set up a vertical plate 4, and then use the jack 5 to easily separate the impeller 3 from the output shaft 2 to complete the disassembly, the labor intensity of the disassembly operation is greatly reduced, and the work is quick and efficient, saving time and effort, and there is no need to worry about the problem of violent disassembly.

[0043] In one embodiment, the vertical plate 4 is connected to the output shaft mounting seat 1 through a plurality of screw rods 6, one end of each screw rod 6 is inserted into a through hole provided on the output shaft mounting seat 1 (in actual work, the through hole is a screw hole inherent in the original output shaft mounting seat, but the diameter of the screw rod 6 is smaller than the screw hole, which is convenient for inserting the screw rod 6), and one end of the screw rod 6 passes through the through hole and is provided with a nut 7, which is used to prevent the vertical plate 4 from driving each screw rod 6 to move away from the output shaft mounting seat 1;

[0044] After S4, the process further includes rotating the nut 7 to move the nut 7 to a predetermined distance in a direction away from the vertical plate 4. With this design, when the jack 5 is working, the vertical plate 4 can be moved away from the output shaft mounting seat 1 by the reaction force, thereby preventing the distance between the impeller 3 and the vertical plate 4 from being too small due to the relative movement of the impeller 3 and the output shaft 2. Of course, the vertical plate 4 can also be moved away from the output shaft mounting seat 1 manually, and then the jack 5 can be operated.

[0045] The present invention also discloses a disassembly device for the impeller 3 of a slurry circulation pump, which is used in conjunction with the above-mentioned disassembly method, and includes the above-mentioned vertical plate 4, a plurality of screw rods 6 and nuts 7, and also includes an auxiliary disassembly assembly 8 arranged on one side of the output shaft mounting seat 1, and the auxiliary disassembly assembly 8 includes a fixing frame 81, and a first push plate 82, a second push plate 83 and a movable pad 84 arranged on the fixing frame 81;

[0046] The first push plate 82 can extend into the output shaft mounting seat 1 to push the output shaft 2 in the output shaft mounting seat 1 to move toward the side where the vertical plate 4 is located; the second push plate 83 abuts against one end of the output shaft mounting seat 1 corresponding to the vertical plate 4 to prevent the output shaft mounting seat 1 from moving toward the side where the vertical plate 4 is located; the movable cushion block 84 can extend into the gap between the impeller 3 and the output shaft mounting seat 1 and can move toward the side where the vertical plate 4 is located to abut against the impeller 3 and prevent the impeller 3 from moving toward the direction of the output shaft mounting seat 1. This design can further reduce the labor intensity of the staff and further improve the work efficiency.

[0047] In one embodiment, the first pushing plate 82 includes a first plate body 821, a first transverse pushing component 822 and a first longitudinal pushing component 823. The first longitudinal pushing component 823 is used to drive the first plate body 821 to move toward and away from the output shaft mounting seat 1, and the first transverse pushing component 822 is used to drive the first plate body 821 to move toward and away from the vertical plate 4.

[0048] In the specific implementation, the first transverse pushing component 822 and the first longitudinal pushing component 823 can both be implemented by the pneumatic telescopic cylinder, hydraulic telescopic cylinder or electric telescopic component in the prior art, and are combined together in the structural form of a cross slide; of course, the structural form as shown in the * figure can also be adopted: first, a first guide groove for transverse sliding is set on the fixed frame 81, and the first longitudinal pushing component 823 includes a first sliding sleeve slidably set in the guide groove, one end of the first plate body 821 is slidably set in the first sliding sleeve, a first opening is opened on one side of the first sliding sleeve, and a first rack is set on the side of the first plate body 821 corresponding to the first opening, and a first gear meshing with the first rack is set at the first opening of the first sliding sleeve and a motor capable of driving the gear to rotate is provided, the motor drives the gear to rotate, and then drives the first plate body 821 to move longitudinally; the first transverse pushing component 822 is installed on the fixed frame 81, and a pneumatic telescopic cylinder, a hydraulic telescopic cylinder or an electric telescopic component can be directly adopted.

[0049] In one embodiment, the second push plate 83 includes a second plate body 831 and a second longitudinal push component 832, and the second longitudinal push component 832 is used to drive the second plate body 831 to move toward and away from the output shaft mounting seat 1. In a specific implementation, the second longitudinal push component 832 can be implemented by a pneumatic telescopic cylinder, a hydraulic telescopic cylinder or an electric telescopic component in the prior art; of course, the same structural form as the first longitudinal push component 823 can also be adopted.

[0050] In one embodiment, the movable pad 84 includes a third plate body 841, a second transverse pushing component 842 and a third longitudinal pushing component 843. The third longitudinal pushing component 843 is used to drive the third plate body 841 to move toward and away from the output shaft mounting seat 1, and the second transverse pushing component 842 is used to drive the third plate body 841 to move toward and away from the vertical plate 4.

[0051] In a specific implementation, the second transverse pushing component 842 and the third longitudinal pushing component 843 can both be implemented by pneumatic telescopic cylinders, hydraulic telescopic cylinders or electric telescopic components in the prior art, and combined together in the form of a cross slide; of course, the same structure as the first pushing plate 82 can also be adopted.

[0052] Preferably, one end of the third plate 841 corresponding to the output shaft mounting seat 1 is wedge-shaped.

[0053] In one embodiment, a bearing plate 41 is provided on one side of the vertical plate 4 corresponding to the impeller 3, and the bearing plate 41 is used to bear the jack 5. With this design, when the jack 5 is released from tightening the output shaft 2, there is no need to worry about the jack 5 falling and breaking, because the jack 5 is easily aligned with the output shaft 2.

[0054] In one embodiment, the vertical plate 4 is provided with a reinforcing rib 42, the reinforcing rib 42 passes through the center of the vertical plate 4, and one end of the jack 5 is located at the center of the vertical plate 4, corresponding to the reinforcing rib 42. This design can enhance the bearing capacity of the vertical plate 4, improve the strength of the vertical plate 4, and reduce the deformation of the vertical plate 4.

[0055] Preferably, the reinforcing rib 42 is cross-shaped and located on one side of the vertical plate 4 corresponding to the impeller 3, and the cross intersection corresponds to the jack 5. In addition, the side of the vertical plate 4 away from the impeller 3 may also be provided with a reinforcing rib 42. In addition, the reinforcing rib 42 may be made of any material such as square steel, steel pipe, etc., but preferably, the reinforcing rib 42 is selected from I-beam steel.

[0056] In one embodiment, the vertical plate 4 is provided with a plurality of waist-shaped grooves 43 corresponding to the screw rods 6 for passing the screw rods 6. This design can make it easier for the screw rods 6 to pass through the vertical plate 4 and the output shaft mounting seat 1, thereby improving work efficiency.

[0057] Preferably, a gasket is provided at the end of the screw rod 6 corresponding to the waist-shaped groove 43 .

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0059] It should be noted that if the embodiments of the invention involve directional indications (such as up and down), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0060] In addition, the meaning of "and / or" appearing in the full text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the invention.

Claims

1. A method for disassembling an impeller of a slurry circulation pump, characterized in that: include: S1, separate the output shaft mounting seat (1) from the motor, then remove the limit of the output shaft (2), and release the limit of the end of the output shaft (2) on the impeller (3); S2. A vertical plate (4) is arranged on a side of the impeller (3) away from the output shaft (2), and the vertical plate (4) is connected to the output shaft mounting seat (1) so that the relative positions of the vertical plate (4) and the output shaft mounting seat (1) are fixed; S3, arranging a jack (5) between the vertical plate (4) and the output shaft (2), and using the jack (5) to push the output shaft (2) toward a side away from the impeller (3); S4, releasing the jack (5) from tightening the output shaft (2), and then pushing the output shaft (2) together with the impeller (3) to move in the direction where the impeller (3) is located, so that a gap is generated between the impeller (3) and the output shaft mounting seat (1), and then inserting a gasket into the gap; S5, the jack (5) is again pressed between the vertical plate (4) and the output shaft (2), and then the output shaft (2) is again pushed toward the side away from the impeller (3) by the jack (5); S6. Repeat S4 and S5 until the impeller (3) is separated from the output shaft (2) and the disassembly is completed.

2. The method for disassembling the impeller (3) of a slurry circulation pump according to claim 1, characterized in that: The vertical plate (4) is connected to the output shaft mounting seat (1) via a plurality of screw rods (6), one end of each screw rod (6) is inserted into a through hole provided on the output shaft mounting seat (1), and one end of the screw rod (6) passes through the through hole and is provided with a nut (7), the nut (7) being used to prevent the vertical plate (4) from driving each screw rod (6) to move in a direction away from the output shaft mounting seat (1); After S4, the method further includes rotating the nut (7) so that the nut (7) moves to a predetermined distance in a direction away from the vertical plate (4).

3. A slurry circulation pump impeller (3) disassembly device, characterized in that: Used in conjunction with the method for disassembling a slurry circulation pump impeller (3) according to any one of claims 1 to 2, comprising a vertical plate (4), a plurality of screw rods (6) and a nut (7), and also comprising an auxiliary disassembly assembly (8) arranged on one side of an output shaft mounting seat (1), the auxiliary disassembly assembly (8) comprising a fixing frame (81), and a first push plate (82), a second push plate (83) and a movable pad (84) arranged on the fixing frame (81); The first push plate (82) can extend into the output shaft mounting seat (1) to push the output shaft (2) in the output shaft mounting seat (1) to move toward the side where the vertical plate (4) is located; the second push plate (83) abuts against one end of the vertical plate (4) corresponding to the output shaft mounting seat (1) to prevent the output shaft mounting seat (1) from moving toward the side where the vertical plate (4) is located; the movable cushion block (84) can extend into the gap between the impeller (3) and the output shaft mounting seat (1) and can move toward the side where the vertical plate (4) is located, so as to prevent the impeller (3) from moving toward the direction of the output shaft mounting seat (1).

4. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: The first pushing plate (82) comprises a first plate body (821), a first transverse pushing component (822) and a first longitudinal pushing component (823); the first longitudinal pushing component (823) is used to drive the first plate body (821) to move in a direction approaching or away from the output shaft mounting seat (1); and the first transverse pushing component (822) is used to drive the first plate body (821) to move in a direction approaching or away from the vertical plate (4).

5. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: The second pushing plate (83) comprises a second plate body (831) and a second longitudinal pushing component (832), wherein the second longitudinal pushing component (832) is used to drive the second plate body (831) to move in a direction approaching or away from the output shaft mounting seat (1).

6. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: The movable pad (84) comprises a third plate body (841), a second transverse pushing component (842) and a third longitudinal pushing component (843); the third longitudinal pushing component (843) is used to drive the third plate body (841) to move in a direction approaching or away from the output shaft mounting seat (1); and the second transverse pushing component (842) is used to drive the third plate body (841) to move in a direction approaching or away from the vertical plate (4).

7. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: A bearing plate (41) is provided on one side of the vertical plate (4) corresponding to the impeller (3), and the bearing plate (41) is used to bear the jack (5).

8. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: The vertical plate (4) is provided with a reinforcing rib (42), the reinforcing rib (42) passes through the center of the vertical plate (4), and one end of the jack (5) is located at the center of the vertical plate (4) and corresponds to the reinforcing rib (42).

9. The slurry circulation pump impeller (3) disassembly device according to claim 3, characterized in that: The vertical plate (4) is provided with a plurality of waist-shaped grooves (43) corresponding to the screw rods (6) and used for passing the screw rods (6).

Images