Flattening device for outer circle of impeller of desulfurization pump

Abstract

The utility model discloses an outer circle flattening device for an impeller of a desulfurization pump. The outer circle flattening device comprises a base; the fixing assembly is arranged on the base and provided with a bearing seat, a bearing end cover is arranged on one side of the bearing seat, the main shaft is installed on the bearing seat through a bearing, a bearing part is arranged at the top of the main shaft, and a chuck used for installing a desulfurization pump impeller is arranged at the bearing part; the scraper assembly is arranged on the base, located on one side of the fixing assembly and provided with a rail component, a slidable knife rest is arranged on the rail component, and a scraper is arranged on the knife rest. The device provided by the utility model is suitable for engineering requirements, is simple in operation, can carry out flatness testing and leveling on desulphurization pump impellers with different sizes, and can visually display the flatness to clients.

Description

Technical Field

[0001] The utility model relates to a flattening device, in particular to a flattening device for the outer circle of a desulfurization pump impeller. Background Art

[0002] The desulfurization pump is a corrosion-resistant pump, mainly used for the transportation of corrosive liquids. It is a widely used type of pump in general equipment. The desulfurization pump impeller is in a corrosive environment during operation. The main fluids circulating in the system are corrosive slurries and other impurities. These fluids cause severe wear and corrosion to the blades, which has a great impact on the long-term reliable operation of the pump. In the long term, it may cause cavitation in the pump. Therefore, the impeller needs to be repaired and reinforced. However, after the desulfurization pump impeller is repaired, the thickness of the repair agent cannot be accurately controlled, resulting in poor impeller balance. Ultimately, the desulfurization pump fails and cannot operate normally.

[0003] At present, the balance of the impeller mainly relies on dynamic balancing tests with dynamic balancing machines. However, dynamic balancing tests can only measure the balance of the impeller and cannot accurately locate the imbalance position. In addition, the impeller of the desulfurization pump is generally heavy and difficult for workers to operate.

[0004] Therefore, it is extremely necessary to design a testing equipment that is suitable for engineering needs, simple to operate, can perform flatness testing and leveling on desulfurization pump impellers of different sizes, and can provide intuitive demonstration to customers. Utility Model Content

[0005] The utility model aims to provide a desulfurization pump impeller outer circle flattening device, which can perform flatness testing and flattening on desulfurization pump impellers of different sizes.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a desulfurization pump impeller outer circle flattening device, characterized in that it includes:

[0007] base;

[0008] A fixed assembly arranged on the base comprises a bearing seat, a bearing end cover is provided on one side of the bearing seat, a main shaft is mounted on the bearing seat through a bearing, a supporting portion is provided at the top of the main shaft, and a chuck for mounting a desulfurization pump impeller is provided at the supporting portion;

[0009] The scraper assembly is arranged on the base and located on one side of the fixed assembly. The scraper assembly comprises a track component. A slidable knife holder is arranged on the track component. A scraper is arranged on the knife holder.

[0010] Further: the bearing has two deep groove ball bearings located on the lower side and a thrust ball bearing located on the upper side.

[0011] Furthermore: the outer diameter of the supporting portion is larger than the outer diameter of the bearing seat.

[0012] Further: the chuck is a three-jaw chuck.

[0013] Further: the track component has two tracks, the track has a track groove, and notches are set on both sides of the track groove. A slider is set in each track, and a fixing hole is set on the side of the slider at the notch, and a fixing bolt is set at the fixing hole; the tool holder has a horizontal part, the horizontal part is set on the slider, and a vertical part is set on the horizontal part, and the scraper is installed at the top of the vertical part.

[0014] Further: the scraper is installed at the top of the vertical part through bolts and nuts.

[0015] Furthermore: the scraper has a blade body, and an obliquely arranged blade portion is provided at the end of the blade body.

[0016] Furthermore: a first oil seal and a second oil seal are respectively arranged in the bearing seat and on both sides of the bearing.

[0017] Compared with the existing technology, the utility model has the following beneficial effects: the utility model is suitable for engineering needs, is simple to operate, can perform flatness testing and leveling on desulfurization pump impellers of different sizes, and can be intuitively displayed to customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the first perspective view of the desulfurization pump impeller outer circle flattening device.

[0019] Figure 2 This is the second perspective view of the desulfurization pump impeller outer circle flattening device.

[0020] Figure 3 This is the third perspective view of the desulfurization pump impeller outer circle flattening device.

[0021] Figure 4 This is a cross-sectional view of the desulfurization pump impeller outer circle flattening device.

[0022] Figure 5 This is an example of a cross-section of the bearing seat.

[0023] Figure 6 This is an enlarged view of the top of the tool holder.

[0024] Figure 7 This is an enlarged view of the track components. DETAILED DESCRIPTION

[0025] See also Figures 1 to 7A desulfurization pump impeller outer circle smoothing device includes a base 1. A fixed assembly is arranged on the base, and the fixed assembly has a bearing seat 21. A bearing end cover 22 is provided on one side of the bearing seat 21. A main shaft 23 is mounted on the bearing seat 21 via a bearing. A support portion 24 is provided at the top of the main shaft 23, and a chuck 25 for mounting the desulfurization pump impeller is provided on the support portion 24. A scraper assembly is arranged on the base and located on one side of the fixed assembly. The scraper assembly has a track component, a slidable tool holder is provided on the track component, and a scraper 3 is provided on the tool holder.

[0026] In the embodiment, the bearing has two deep groove ball bearings 41 located at the bottom and a thrust ball bearing 42 located at the top.

[0027] In the embodiment, the outer diameter of the supporting portion 24 is larger than the outer diameter of the bearing seat 21. This design is beneficial for supporting and facilitating the use of the bearing.

[0028] In the embodiment, the chuck 25 is a three-jaw chuck. The desulfurization pump impeller 100 is shown on the three-jaw chuck.

[0029] In the embodiment, the track component has two tracks 5, each track 5 having a groove 51, with notches 52 on both sides of the groove 51, a slider 53 provided in each track 5, and a fixing hole 54 provided on the side of the slider 53 and located at the notch 52 (for one track, fixing holes are provided on both sides of the slider, that is, one slider has two fixing holes. It should be noted that only one fixing hole can be provided as needed, so that the slider can be fixed to the track), and a fixing bolt is provided at the fixing hole 54 (the fixing bolt passes through the notch and is fixed in conjunction with the fixing hole); the tool holder has a transverse portion 61, which is provided on the slider 53, and a vertical portion 62 is provided on the transverse portion 61, and the scraper 3 is installed at the top of the vertical portion 62. The tool holder can slide back and forth on the track through the slider. After sliding into place, a fixing bolt is installed at each fixing hole to lock the slider to the track, thereby fixing the scraper part.

[0030] In this embodiment, the scraper 3 is mounted at the top of the vertical portion 62 via bolts and nuts. The scraper 3 comprises a blade body 31, with an obliquely arranged blade portion 32 disposed at the end of the blade body 31. Since the scraper is secured via bolts and nuts, the angle of the scraper can be adjusted as needed to accommodate the oblique blade portion, facilitating smoothing.

[0031] In the embodiment, a first oil seal 21a and a second oil seal 21b are respectively provided in the bearing seat 21 and on both sides of the bearing. The oil seals are used to seal lubricating oil.

[0032] The base supports the entire device. The center of the desulfurization pump impeller is fixed by a three-jaw chuck, the thrust ball bearing bears the axial load, and the deep groove ball bearing bears the radial load of the main shaft rotation. Push the tool holder inward (close to the impeller side), and lock it with the fixing bolts and fixing holes after it is in place. After the angle-adjustable scraper is adjusted to the appropriate position and fixed (the scraper is adjusted to the appropriate position of the coating to be repaired, so that the repair requirements are met after scraping off the excess coating. The specific setting can be based on actual needs), the thicker repair agent on the outer circle of the desulfurization pump impeller is scraped off by rotating the main shaft (manually rotated. It should be noted that in special cases, the main shaft can also be driven to rotate by a power device), thereby achieving the effect of flatness testing and leveling (the two are completed simultaneously, and leveling is equivalent to doing a test at the same time).

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions that fall within the principles of the present invention fall within the scope of protection of the present invention. For those skilled in the art, any improvements made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A desulfurization pump impeller outer circle flattening device, characterized in that: include: Base (1); A fixed assembly arranged on the base comprises a bearing seat (21), a bearing end cover (22) is provided on one side of the bearing seat (21), a main shaft (23) is mounted on the bearing seat (21) via a bearing, a supporting portion (24) is provided at the top of the main shaft (23), and a chuck (25) for mounting a desulfurization pump impeller is provided at the supporting portion (24); The scraper assembly is arranged on a base and located on one side of a fixed assembly. The scraper assembly comprises a track component, a slidable knife holder is arranged on the track component, and a scraper (3) is arranged on the knife holder.

2. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: The bearing has two deep groove ball bearings (41) located on the lower side and a thrust ball bearing (42) located on the upper side.

3. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: The outer diameter of the supporting portion (24) is greater than the outer diameter of the bearing seat (21).

4. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: The chuck (25) is a three-jaw chuck.

5. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: The track component comprises two tracks (5), each track (5) having a track groove (51), notches (52) being provided on both sides of the track groove (51), a slider (53) being provided in each track (5), a fixing hole (54) being provided on the side of the slider (53) and located at the notch (52), and a fixing bolt being provided at the fixing hole (54); The tool holder has a transverse portion (61), which is arranged on the slider (53), a vertical portion (62) is arranged on the transverse portion (61), and the scraper (3) is installed at the top of the vertical portion (62).

6. The desulfurization pump impeller outer circle flattening device according to claim 5, characterized in that: The scraper (3) is mounted at the top of the vertical portion (62) by means of bolts and nuts.

7. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: The scraper (3) has a blade body (31), and an obliquely arranged blade portion (32) is provided at the end of the blade body (31).

8. The desulfurization pump impeller outer circle flattening device according to claim 1, characterized in that: A first oil seal (21a) and a second oil seal (21b) are respectively arranged in the bearing seat (21) and on both sides of the bearing.

Images