A turning fixing device for a slurry pump sheath

Abstract

This application discloses a machining and fixing device for a slurry pump sleeve. This device, through the cooperation of a base plate, a vertical plate, side plate limiting plates, and outer and inner pressure plates, limits the position of the worm gear-type slurry pump sleeve, facilitating its mounting on a machine tool for machining. This fixing device provides multi-point limiting of the slurry pump sleeve, with each limiting point distributed at multiple important locations on the sleeve, ensuring stable and reliable positioning.

Description

Technical Field

[0001] This application relates to the field of machining, and in particular to a turning and fixing device for a slurry pump sheath. Background Technology

[0002] A slurry pump is a machine that increases the energy of a solid-liquid mixture by using the centrifugal force generated by the rotation of the pump impeller. It converts electrical energy into the kinetic and potential energy of the medium. Its basic structure consists of an impeller, pump casing, pump shaft, bearings, and support frame. Power sources include an electric motor, a coupling between a pulley or belt pulley, etc. When the impeller rotates rapidly, the blades cause the medium to rotate quickly. Under the action of centrifugal force, the rotating medium flies out of the impeller. After the medium is ejected from the pump, a vacuum area is formed in the center of the impeller. Under atmospheric pressure (or water pressure), the medium is forced into the feed pipe through the pipeline network. It is mainly suitable for industries such as mining, power plants, dredging, metallurgy, chemical industry, building materials, and petroleum.

[0003] In slurry pumps, the volute casing is a crucial component. For larger slurry pumps with higher slurry handling capacity, the corresponding volute casings are typically quite large. Machining and clamping these large components often presents numerous challenges. Firstly, their sheer size; secondly, the irregular shape of the volute casing makes it impossible for the original clamping components on the lathe to secure them properly. Summary of the Invention

[0004] This application provides a machining and fixing device for the worm gear sleeve of a slurry pump, which solves the technical problem of difficult machining and fixing of the worm gear sleeve of a large slurry pump in the prior art.

[0005] This application provides a machining and fixing device for a slurry pump casing, used to fix a volute-type slurry pump casing, comprising:

[0006] The base plate provides a level supporting surface;

[0007] A vertical plate, fixed to the base plate, provides a vertical plane;

[0008] The side limiting plate is perpendicular to the bottom plate and the vertical plate, and is fixed relative to the bottom plate. Two side limiting plates are arranged parallel to each other at intervals, and the space between the two side limiting plates is used to accommodate the slurry pump sleeve in the horizontal direction.

[0009] An outer pressure plate is pressed and mounted on the two side limiting plates, and the pressure plate and the vertical plate are used to accommodate the slurry pump sleeve in the thickness direction of the slurry pump sleeve. The outer pressure plate applies pressure toward the vertical plate to the outer end face of the slurry pump sleeve located on one side of the outer pressure plate.

[0010] An inner pressure plate is pressed between the inner arc surface of the vertical plate and the inner arc surface of the slurry pump sleeve, and applies pressure toward the vertical plate to the inner arc surface.

[0011] Furthermore, in this application, the two ends of the outer pressure plate are respectively fixed to the corresponding side uprights by bolts, and the outer pressure plate intersects with the central axis of the slurry pump sleeve.

[0012] Furthermore, in this application, the external pressure plate is fixed to the vertical plate by a first locking screw, which is arranged along the central axis of the slurry pump sleeve.

[0013] Furthermore, in this application, a first adjusting bolt is provided on the outer pressure plate at a position corresponding to the outer end face of the slurry pump sleeve on one side of the outer pressure plate. The operable end of the first adjusting bolt is located on the other side of the outer pressure plate relative to the slurry pump sleeve. The first adjusting bolt passes through the outer pressure plate and its tail abuts against the slurry pump sleeve.

[0014] Furthermore, in this application, multiple inner pressure plates are arranged radially along the slurry pump sheath.

[0015] Furthermore, in this application, one end of the inner pressure plate is rotatably fixed to the vertical plate by bolts, and the other end of the inner pressure plate is provided with a second adjusting bolt. The operable end of the second adjusting bolt is located on the other side of the inner pressure plate relative to the inner arc surface of the slurry pump sleeve between the inner pressure plate and the vertical plate. The second adjusting bolt passes through the inner pressure plate and its tail abuts against the inner arc surface of the slurry pump sleeve.

[0016] Furthermore, in this application, a second locking screw is provided at the middle of both ends of the inner pressure plate, and the second locking screw is parallel to the first locking screw.

[0017] Furthermore, in this application, a third adjusting bolt is provided at the corresponding position of the vertical plate and / or side limiting plate and the slurry pump sleeve. The operable end of the third adjusting bolt is located on the other side of the vertical plate or side limiting plate relative to the slurry pump sleeve. The third adjusting bolt passes through the vertical plate or side limiting plate and its tail abuts against the slurry pump sleeve.

[0018] Furthermore, in this application, the outlet of the slurry pump sleeve is vertically upward, and of the two side limiting plates, the upper edge of the side closer to the outlet of the slurry pump sleeve is higher than the upper edge of the other side limiting plate.

[0019] Furthermore, in this application, the base plate is provided with multiple triangular reinforcing plates.

[0020] Beneficial effects

[0021] This utility model provides a turning and fixing device for a slurry pump sleeve. The device, through the cooperation of a base plate, a vertical plate, a side plate limiting plate, an outer pressure plate, and an inner pressure plate, allows the worm gear-type slurry pump sleeve to be limited, thereby facilitating the machining of the slurry pump sleeve by fixing the device to a machine tool.

[0022] The fixing device of this utility model provides multi-point limiting for the slurry pump sheath, and the limiting points are distributed at multiple important points on the slurry pump sheath, thereby making the limiting stable and reliable. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is a front view of a slurry pump sleeve fixed on a machining and fixing device for a slurry pump sleeve according to an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the back of a slurry pump sleeve fixed on a machining and fixing device for a slurry pump sleeve according to an embodiment of this application.

[0026] The meanings of the various reference numerals in the figure are as follows:

[0027] 11. Base plate, 22. Right side limiting plate, 3-1. Left side limiting plate, 3-2. Slurry pump sleeve, 4. Outer pressure plate, 5. Bolt, 6. First adjusting bolt, 7. Second adjusting bolt, 8. Inner pressure plate, 9. First locking screw, 10. Second locking screw, 11. Third adjusting bolt, 12. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figure 1 The image shows the slurry pump sleeve 4 to be processed in this embodiment of the application. When the slurry pump sleeve 4 is standing upright, it has a height of 1841 mm, a width of 1698 mm, and a thickness of 432 mm. The slurry pump sleeve 4 is generally volute-shaped, with a hollow center to accommodate the impeller blades. After the medium enters the central area, it is centrifugally generated by the impeller blades and enters the flow channel outside the central area. Finally, the medium is discharged from the slurry pump sleeve 4 through the columnar flow channel.

[0032] When the above-mentioned slurry pump sleeve 4 is initially formed and then precision machined, the stepped surface on the columnar flow channel needs to be machined. Since the slurry pump sleeve 4 is large in volume and its surface is mostly curved and difficult to position, the embodiment of this application is proposed, namely, a fixing device designed for the larger volute-type slurry pump sleeve 4 that cannot be directly fixed on the machine tool.

[0033] like Figure 1 As shown, in this embodiment, since the area to be processed is the stepped surface of the columnar flow channel, the slurry pump sleeve 4 is as follows... Figure 1The slurry pump sleeve 4 is erected as shown, with the opening of the columnar flow channel facing vertically upwards. After the erected slurry pump sleeve 4 is limited by the fixing device, since the fixing device has many flat structures that facilitate the setting of gripping and fixing areas, the slurry pump sleeve 4 can be machined by fixing the fixing device to the machine tool.

[0034] In order to limit the slurry pump sleeve 4 to the aforementioned position, specifically, a machining and fixing device for the slurry pump sleeve 4 in this embodiment is as follows: Figure 1 As shown, the fixing device includes at least a base plate 1, a vertical plate 2, a side limiting plate, an outer pressure plate 5, and an inner pressure plate 9.

[0035] The base plate 1 provides a horizontal support surface. This support surface provides a support surface for the slurry pump sleeve 4 to be placed vertically, and serves as an installation reference for multiple other components on the fixing device. These components include, but are not limited to, a vertical plate 2 for supporting the slurry pump sleeve 4 in the vertical direction, a reinforcing plate for reinforcing the vertical plate 2, and a jaw clamping plate for positioning and fixing the fixing device on a machine tool.

[0036] The upright plate 2 is fixed to the base plate 1, providing a vertical plane. Both the upright plate 2 and the base plate 1 are flat, thin plates and are perpendicular to each other. Figure 1 and Figure 2 As shown, one side of the vertical plate 2 serves as the vertical support surface of the slurry pump sleeve 4, and several triangular reinforcing plates are fixed between the other side of the vertical plate 2 and the base plate 1 to make the vertical plate 2 more reliably fixed on the base plate 1.

[0037] The side limiting plate is perpendicular to the base plate 1 and the upright plate 2, and is fixed relative to the base plate 1. Specifically, in this embodiment, as follows: Figure 1 As shown, the side limiting plate is fixed to the upright plate 2, and several triangular reinforcing plates are fixed between the side limiting plate and the upright plate 2 to make the side limiting plate more reliably fixed. In order to constrain the slurry pump sleeve 4 on both the left and right sides, two parallel side limiting plates are arranged at intervals, namely the right side limiting plate 3-1 and the left side limiting plate 3-2. The distance between the two side limiting plates is slightly larger than the left and right direction of the slurry pump sleeve 4, so as to accommodate the slurry pump sleeve 4 in the horizontal direction.

[0038] The outer pressure plate 5 is pressed and mounted on the two side limiting plates, and the space between the outer pressure plate 5 and the vertical plate 2 is used to accommodate the slurry pump sleeve 4 in the thickness direction of the slurry pump sleeve 4. The outer pressure plate 5 applies pressure towards the vertical plate 2 to the outer end face of the slurry pump sleeve 4 located on one side of the outer pressure plate 5. Specifically, the outer pressure plate 5 is a long flat rod, and both ends of the rod are fixed to the corresponding side limiting plates by bolts 6. The outer pressure plate 5 is almost parallel to the large surface of the vertical plate 2. Preferably, the outer pressure plate 5 is in a basically central position in the height direction of the slurry pump sleeve 4. Since the central axis of the slurry pump sleeve 4 is the central axis for mounting the impeller, this central axis is located in the middle of the worm gear part of the slurry pump sleeve 4. Therefore, the outer pressure plate 5 is arranged to intersect the central axis of the slurry pump sleeve 4 and is horizontally arranged. The space between the outer pressure plate 5 and the vertical plate 2 is slightly larger than the thickness of the slurry pump sleeve 4 to accommodate the slurry pump sleeve 4.

[0039] Furthermore, in order to constrain the slurry pump sleeve 4, in some preferred embodiments, a first adjusting bolt 7 is provided on the outer pressure plate 5 at a position corresponding to the outer end face of the slurry pump sleeve 4 on one side of the outer pressure plate 5. The operable end of the first adjusting bolt 7 is located on the other side of the outer pressure plate 5 relative to the slurry pump sleeve 4, and the first adjusting bolt 7 passes through the outer pressure plate 5 with its tail abutting against the slurry pump sleeve 4. Figure 1 As shown, the first adjusting bolt 7 includes two bolts, left and right, which correspond to the outer surfaces of the slurry pump sleeve 4 on the left and right sides respectively. By adjusting the length of the first adjusting bolt 7 at the operable end, the limiting effect of the outer pressure plate 5 on the slurry pump sleeve 4 is achieved.

[0040] In some preferred embodiments, the outer pressure plate 5 is also fixed to the vertical plate 2 by a first locking screw 10. Thus, the outer pressure plate 5 and the vertical plate 2 cooperate to constrain the slurry pump sleeve 4 in the thickness direction.

[0041] The inner pressure plate 9 is designed to address the large volume of the slurry pump sleeve 4, where fixing it solely through the outer end face is insufficiently reliable. Therefore, the inner pressure plate 9 acts on the inner arc surface of the slurry pump sleeve 4, thus more reliably limiting its position. Figure 1 As shown, the inner pressure plate 9 is pressed between the inner arc surface of the vertical plate 2 and the inner arc surface of the slurry pump sleeve 4, and applies pressure toward the vertical plate 2 to the inner arc surface.

[0042] In some preferred embodiments, one end of the inner pressure plate 9 is rotatably fixed to the vertical plate 2 by bolts 6, and the other end of the inner pressure plate 9 is provided with a second adjusting bolt 8. The operable end of the second adjusting bolt 8 is located on the other side of the inner pressure plate 9 relative to the inner arc surface of the slurry pump sleeve 4 between the inner pressure plate 9 and the vertical plate 2. The second adjusting bolt 8 passes through the inner pressure plate 9 and its tail abuts against the inner arc surface of the slurry pump sleeve 4. By adjusting the length of the second adjusting bolt 8 at the operable end, the limiting effect of the inner pressure plate 9 on the slurry pump sleeve 4 is achieved.

[0043] In some preferred embodiments, to apply force evenly to the slurry pump sleeve 4, multiple inner pressure plates 9 are arranged radially along the slurry pump sleeve 4. Figure 1 In the illustrated embodiment, one inner pressure plate 9 is set at 60° radial intervals, meaning that six inner pressure plates 9 are evenly distributed throughout the entire circumference. During adjustment, tools such as an angle gauge can be used to ensure that the six inner pressure plates 9 are evenly distributed.

[0044] In some preferred embodiments, a second locking screw 11 is provided at the middle of both ends of the inner pressure plate 9, and the second locking screw 11 is parallel to the first locking screw 10. In this way, the inner pressure plate 9 is locked in place by the second locking screw 11, thereby effectively pressing the inner arc surface of the slurry pump sleeve 4.

[0045] In some preferred embodiments, such as Figure 1 and Figure 2 A third adjusting bolt 12 is provided at the corresponding position of the slurry pump sleeve 4 on the vertical plate 2 and / or the side limiting plate. The operable end of the third adjusting bolt 12 is located on the other side of the vertical plate 2 or the side limiting plate relative to the slurry pump sleeve 4. The third adjusting bolt 12 passes through the vertical plate 2 or the side limiting plate and its tail abuts against the slurry pump sleeve 4.

[0046] By using the aforementioned multiple sets of adjusting bolts, the placement of the slurry pump sleeve 4 can be effectively adjusted in multiple dimensions, ultimately achieving the limiting position of the slurry pump sleeve 4 and facilitating its installation according to the installation requirements. Taking this embodiment as an example, since the stepped surface of the columnar flow channel needs to be machined, the central axis of the columnar flow channel needs to be vertically upward. When adjusting with multiple sets of adjusting bolts, a level can be used on the upper end face of the columnar flow channel to determine if the adjustment is in place. If not, the third adjusting bolt 12 is adjusted accordingly to fine-tune the angle of the slurry pump sleeve 4 in the vertical plane, ultimately keeping the central axis of the columnar flow channel vertical. Furthermore, in the thickness direction of the slurry pump sleeve 4, the distance between the outermost end face and the vertical plate 2 should be consistent. This can also be achieved through laser ranging and adjusted by using the first adjusting bolt 7 and the second adjusting bolt 8. Once adjusted to the correct position, the corresponding locking screws are used for locking and positioning.

[0047] In some preferred embodiments, the outlet of the slurry pump sleeve 4, i.e., the columnar flow channel, is vertically upward, and of the two side limiting plates, the upper edge of the side closer to the outlet of the slurry pump sleeve 4 is higher than the upper edge of the other side limiting plate. Thus, as... Figure 1 As shown, the side limiting plate on the left side can more effectively fix the columnar flow channel to be processed, which helps to reduce vibration.

[0048] When using the fixing device provided in the above embodiments, first remove the outer pressure plate 5 and the inner pressure plate 9, and then install the slurry pump sleeve 4 as follows: Figure 1 The pump is erected as shown. At this time, the bolts that install the inner pressure plate 9 and the outer pressure plate 5 fix the inner pressure plate 9 to the upright plate 2 and the outer pressure plate 5 to the side limiting plate. Then, the first adjusting bolt 7, the second adjusting bolt 8, and the third adjusting bolt 12 are adjusted so that the position of the slurry pump sleeve 4 meets the requirements. Finally, the outer pressure plate 5 and the inner pressure plate 9 are locked to the upright plate 2 by the first locking screw 10 and the second locking screw 11, thereby finally completing the limiting of the slurry pump sleeve 4.

[0049] In this embodiment, the fixing device has a lifting hole and a clamping plate on the base plate 1. After the positioning is completed, the entire fixing device is lifted onto the machine tool through the lifting hole, and the base plate 1 is placed flat. The machine tool clamps the clamping plate to fix the fixing device onto the machine tool. Afterwards, the cutting head can be moved to process the slurry pump sleeve 4.

[0050] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A machining and fixing device for a slurry pump casing, used to fix a volute-type slurry pump casing, characterized in that, include: The base plate provides a level supporting surface; A vertical plate, fixed to the base plate, provides a vertical plane; The side limiting plate is perpendicular to the bottom plate and the vertical plate, and is fixed relative to the bottom plate. Two side limiting plates are arranged parallel to each other at intervals, and the space between the two side limiting plates is used to accommodate the slurry pump sleeve in the horizontal direction. An outer pressure plate is pressed and mounted on the two side limiting plates, and the pressure plate and the vertical plate are used to accommodate the slurry pump sleeve in the thickness direction of the slurry pump sleeve. The outer pressure plate applies pressure toward the vertical plate to the outer end face of the slurry pump sleeve located on one side of the outer pressure plate. An inner pressure plate is pressed between the inner arc surface of the vertical plate and the inner arc surface of the slurry pump sleeve, and applies pressure toward the vertical plate to the inner arc surface.

2. The fixing device according to claim 1, characterized in that, The two ends of the outer pressure plate are respectively fixed to the corresponding side upright plate by bolts, and the outer pressure plate intersects with the central axis of the slurry pump sleeve.

3. The fixing device according to claim 2, characterized in that, The external pressure plate is fixed to the vertical plate by a first locking screw, which is arranged along the central axis of the slurry pump sleeve.

4. The fixing device according to claim 3, characterized in that, A first adjusting bolt is provided on the outer pressure plate at a position corresponding to the outer end face of the slurry pump sleeve on one side of the outer pressure plate. The operable end of the first adjusting bolt is located on the other side of the outer pressure plate relative to the slurry pump sleeve. The first adjusting bolt passes through the outer pressure plate and its tail abuts against the slurry pump sleeve.

5. The fixing device according to claim 3, characterized in that, Multiple inner pressure plates are arranged radially along the slurry pump casing.

6. The fixing device according to claim 5, characterized in that, One end of the inner pressure plate is rotatably fixed to the vertical plate by bolts, and the other end of the inner pressure plate is provided with a second adjusting bolt. The operable end of the second adjusting bolt is located on the other side of the inner pressure plate relative to the inner arc surface of the slurry pump sleeve between the inner pressure plate and the vertical plate. The second adjusting bolt passes through the inner pressure plate and its tail abuts against the inner arc surface of the slurry pump sleeve.

7. The fixing device according to claim 6, characterized in that, A second locking screw is provided in the middle of both ends of the inner pressure plate, and the second locking screw is parallel to the first locking screw.

8. The fixing device according to claim 1, characterized in that, A third adjusting bolt is provided at the corresponding position of the slurry pump sleeve on the vertical plate and / or side limiting plate. The operable end of the third adjusting bolt is located on the other side of the vertical plate or side limiting plate relative to the slurry pump sleeve. The third adjusting bolt passes through the vertical plate or side limiting plate and its tail abuts against the slurry pump sleeve.

9. The fixing device according to any one of claims 1 to 8, characterized in that, The outlet of the slurry pump sleeve is vertically upward, and of the two side limiting plates, the upper edge of the side closer to the outlet of the slurry pump sleeve is higher than the upper edge of the other side limiting plate.

10. The fixing device according to claim 9, characterized in that, The base plate is provided with multiple triangular reinforcing plates.

Images