A turning device for the bearing body of a multistage pump

Abstract

The present invention relates to a turning processing device for a multi-stage pump bearing body, which comprises a support frame, an adjusting bolt, an adjusting nut, a stud, a fixing nut and a positioning mounting plate. Among them, the support frame includes a vertical plate, a bottom plate and two side plates. A fixing unit is provided in the center of the vertical plate for connecting the lathe spindle. The two side plates are vertically located on both sides of the vertical plate. First threaded holes are provided on the side plates. The adjusting bolt passes through the first threaded hole from the outside of the side plate and then connects the adjusting nut and abuts against the multi-stage pump bearing body. The bottom plate is horizontally located at the bottom of the vertical plate. The positioning mounting plate is located above the bottom plate and connects the multi-stage pump bearing body. A second threaded hole is provided in the center of the bottom of the positioning mounting plate. A through hole is provided on the bottom plate. One end of the stud passes through the through hole and connects to the second threaded hole, and the other end connects to the fixing nut. Compared with the prior art, the present invention has the advantages of simplifying the operation process and improving the production efficiency, etc.

Description

Technical Field

[0001] The present invention relates to the field of manufacturing split bearing body components for multistage pumps, and particularly to a turning processing device for the bearing body of a multistage pump. Background Art

[0002] In the manufacturing process of multistage pumps, it is necessary to process the split bearing body components of the multistage pumps. The bearing body components are composed of a bearing cover and a bearing body. The existing method is usually to first machine the split surfaces of the bearing cover and the bearing body, then place the bearing body on a boring machine to bore process holes, and remove the workpiece; then machine holes on the split surfaces of the bearing cover and the bearing body, and then fasten the bearing cover and the bearing body with threaded fasteners; finally, machine the inner hole on a lathe. This processing method requires repeated rotation of the bearing body between the boring machine and the lathe, resulting in inconvenient operation and low production efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects existing in the prior art and provide a turning processing device for the bearing body of a multistage pump, so that the bearing body can be directly fixed on the lathe for processing operation of process holes and machining holes, and the production efficiency is improved.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A turning processing device for the bearing body of a multistage pump includes a support frame, adjusting bolts, adjusting nuts, studs, fixing nuts and a positioning and mounting plate. Among them, the support frame includes a vertical plate, a bottom plate and two side plates. A fixing unit is provided in the center of the vertical plate for connecting the main shaft of the lathe. The two side plates are vertically located on both sides of the vertical plate. First threaded holes are provided on the side plates. The adjusting bolts pass through the first threaded holes from the outside of the side plates and then connect the adjusting nuts and abut against the bearing body of the multistage pump. The bottom plate is horizontally located at the bottom of the vertical plate. The positioning and mounting plate is located above the bottom plate and connects the bearing body of the multistage pump. A second threaded hole is provided in the center of the bottom of the positioning and mounting plate. A through hole is provided on the bottom plate. One end of the stud passes through the through hole to connect the second threaded hole, and the other end connects the fixing nut.

[0006] Furthermore, a screw mounting groove is provided on the bottom surface of the positioning and mounting plate, and socket head cap screws are embedded in the screw mounting groove. The socket head cap screws pass upward through the positioning and mounting plate and then connect the bearing body of the multistage pump.

[0007] Furthermore, the screw mounting grooves are distributed at the four corners of the positioning and mounting plate.

[0008] Furthermore, the fixing unit includes a connecting screw. A third threaded hole is provided in the center of the vertical plate. One end of the screw connects the third threaded hole, and the other end connects the inner hole of the end of the main shaft of the lathe.

[0009] Furthermore, a counterweight is fixed to the upper end of the vertical plate.

[0010] Furthermore, the counterweight and the vertical plate are connected by bolts.

[0011] Furthermore, a washer is provided between the fixing nut and the bottom surface of the bottom plate.

[0012] Furthermore, a buffer block is provided at the end of the adjusting bolt.

[0013] Furthermore, the side plate is a right trapezoidal plate, with one of its right-angled sides connected to the vertical plate and the bottom right-angled side connected to the bottom plate.

[0014] Furthermore, the diameter of the through hole is larger than the diameter of the stud.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, the multi-stage pump bearing body is directly fixed on the main shaft of the lathe through the support frame, adjusting bolts, positioning mounting plate, studs, etc. Thus, the multi-stage pump bearing body can directly process the process holes and the holes on the middle opening surface on the lathe, and then directly cover the bearing cover for inner hole processing, significantly simplifying the operation process and improving the production efficiency.

[0017] 2. When in use, first, the adjusting bolts are used to finely adjust and position the multi-stage pump bearing body on the bottom plate, clamp the multi-stage pump bearing body from both sides, and then use the studs to fix the positioning mounting plate at the bottom to complete the locking, which is convenient and labor-saving to operate.

[0018] 3. A counterweight is fixed to the upper end of the vertical plate, and the counterweight is adapted to the weight of the multi-stage pump bearing body, so that the center of gravity of the support frame is maintained at the center point, ensuring the stable and safe rotation of the support frame during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic side sectional view of the present invention.

[0020] Figure 2 is a schematic top view of the present invention.

[0021] Reference numerals: 1, support frame; 101, vertical plate; 102, bottom plate; 103, side plate; 2, adjusting bolt; 3, adjusting nut; 4, stud; 5, fixing nut; 6, positioning mounting plate; 601, screw mounting groove; 7, first threaded hole; 8, second threaded hole; 9, internal angle screw; 10, third threaded hole; 11, counterweight; 12, washer; 13, multi-stage pump bearing body; 14, through hole. DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives detailed implementation manners and specific operation processes, but the protection scope of the present invention is not limited to the following embodiments.

[0023] As Figure 1 and Figure 2 shown, this embodiment provides a turning processing device for a multi-stage pump bearing body, including a support frame 1, an adjusting bolt 2, an adjusting nut 3, a stud 4, a fixing nut 5 and a positioning mounting plate 6. The support frame 1 includes a vertical plate 101, a bottom plate 102 and two side plates 103. The vertical plate 101 is a vertically arranged rectangular plate, and a fixing unit is provided in the center to connect the main shaft of the lathe. The structure of the fixing unit is not limited. In this embodiment, the fixing unit is a screw rod. A third threaded hole 10 is provided in the center of the vertical plate 101. One end of the screw rod is connected to the third threaded hole 10, and the other end is connected to the inner hole of the end of the main shaft of the lathe. The two side plates 103 are vertically located on both sides of the vertical plate 101, and right-angled trapezoidal plates can be used to reduce weight and avoid interference with the multi-stage pump bearing body 13. One right-angled side of the side plate 103 is connected to the vertical plate 101, and the bottom right-angled side is perpendicular to the vertical plate 101. A first threaded hole 7 is provided in the center of each side plate 103. The adjusting bolt 2 passes through the first threaded hole 7 from the outside of the side plate 103 and then connects to the adjusting nut 3 and is used to abut against the internal multi-stage pump bearing body 13. A buffer block such as rubber can also be provided at the end of the adjusting bolt 2 to play a buffering and protective role. The bottom plate 102 is horizontally located at the bottom of the vertical plate 101, and its two ends are connected to the bottom right-angled sides of the side plates 103. A second threaded hole 8 is provided in the center of the bottom plate 102. The positioning mounting plate 6 is used to connect the bottom of the multi-stage pump bearing body 13 and can be locked and fixed on the bottom plate 102. The specific connection method is as follows: A through hole 14 is provided in the center of the bottom plate 102, a second threaded hole 8 is provided in the center of the bottom of the positioning mounting plate 6, one end of the stud 4 passes through the through hole 14 and connects to the second threaded hole 8, and the other end is tightened by the fixing nut 5. A washer 12 is provided between the fixing nut 5 and the bottom surface of the bottom plate 102 for buffering and protection.

[0024] In this embodiment, the positioning mounting plate 6 and the multi-stage pump bearing body 13 are connected by threads. The bottom of the multi-stage pump bearing body 13 is provided with mounting screw holes originally connected to the base. The bottom surface of the positioning mounting plate 6 is provided with a screw mounting groove 601, and an internal angle screw 9 is buried in the screw mounting groove 601 and passes through the upper surface of the positioning mounting plate 6. The distribution of the screw mounting groove 601 corresponds to the mounting screw holes, and is usually distributed at the four corners of the positioning mounting plate 6. Thus, the positioning mounting plate 6 and the multi-stage pump bearing body 13 are fixedly connected through the internal angle screw 9. The internal angle screw 9 adopts a common internal hexagonal screw in this embodiment. After the internal angle screw 9 is buried in the screw mounting groove 601, its end is not higher than the bottom plane of the positioning mounting plate 6.

[0025] In this embodiment, a counterweight 11 is fixed to the upper end of the vertical plate 101, and the counterweight 11 and the vertical plate 101 are connected by bolts. The counterweight 11 and the multi-stage pump bearing body 13 are weight-matched so that the center of gravity of the support frame 1 is maintained at the center point, ensuring the stable and safe rotation of the support frame 1 during processing.

[0026] The specific use process of this embodiment is as follows:

[0027] Connect the vertical plate 101 of the support frame 1 to the inner hole at the end of the lathe spindle through a screw, and at the same time, the four-jaw chuck of the lathe clamps the lower part of the support frame 1. Fix the multi-stage pump bearing body 13 and the positioning mounting plate 6, place the multi-stage pump bearing body 14 with the positioning mounting plate 6 on the bottom plate 102, insert the stud 4 through the through hole 14 of the bottom plate 102 and then into the second threaded hole 8 of the positioning mounting plate 6 for preliminary fixation. The diameter of the through hole 14 is larger than the diameter of the stud 4, so that the multi-stage pump bearing body 13 has a certain adjustment margin. Turn the adjustment bolt 2 to finely adjust and position the multi-stage pump bearing body 13. When the adjustment is completed, tighten the adjustment nut 3 to fix the position. Finally, tighten the fixing nut 5 on the stud 4 to complete the fastening, and slightly adjust the position of the four jaws so that the center of the bearing hole coincides with the center of the lathe to perform subsequent process steps.

[0028] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A turning device for a multi-stage pump bearing body, characterized in that, It includes a support frame (1), an adjustment bolt (2), an adjustment nut (3), a stud (4), a fixing nut (5) and a positioning mounting plate (6). Among them, the support frame (1) includes a vertical plate (101), a bottom plate (102) and two side plates (103). A fixing unit is provided in the center of the vertical plate (101) for connecting to the lathe spindle. The two side plates (103) are vertically located on both sides of the vertical plate (101). A first threaded hole (7) is provided on the side plate (103). The adjustment bolt (2) passes through the first threaded hole (7) from the outside of the side plate (103) and then connects to the adjustment nut (3) and abuts against the multi-stage pump bearing body (13). The bottom plate (102) is horizontally located at the bottom of the vertical plate (101). The positioning mounting plate (6) is located above the bottom plate (102) and connects to the multi-stage pump bearing body (13). A second threaded hole (8) is provided in the center of the bottom of the positioning mounting plate (6). A through hole (14) is provided on the bottom plate (102). One end of the stud (4) passes through the through hole (14) to connect to the second threaded hole (8), and the other end connects to the fixing nut (5); A screw mounting groove (601) is provided on the bottom surface of the positioning mounting plate (6). An internal angle screw (9) is embedded in the screw mounting groove (601). The internal angle screw (9) passes upward through the positioning mounting plate (6) and then connects to the multi-stage pump bearing body (13); The fixing unit includes a connecting screw. A third threaded hole (10) is provided in the center of the vertical plate (101). One end of the screw connects to the third threaded hole (10), and the other end connects to the inner hole of the end of the lathe spindle.

2. The turning processing device for the bearing body of a multi-stage pump according to claim 1, characterized in that, The screw mounting grooves (601) are distributed at the four corners of the positioning mounting plate (6).

3. The turning processing device for the bearing body of a multi-stage pump according to claim 1, characterized in that, A counterweight block (11) is fixed to the upper end of the vertical plate (101).

4. A multi-stage pump bearing housing turning device according to claim 3, characterized in that, The counterweight block (11) and the vertical plate (101) are connected by bolts.

5. A turning processing device for a multi-stage pump bearing body according to claim 1, characterized in that, A washer (12) is provided between the fixing nut (5) and the bottom surface of the bottom plate (102).

6. A turning device for a multi-stage pump bearing body according to claim 1, characterized in that, A buffer block is provided at the end of the adjustment bolt (2).

7. A turning device for a multi-stage pump bearing body according to claim 1, characterized in that, The side plate (103) is a right trapezoidal plate. One of its right-angled sides is connected to the vertical plate (101), and the right-angled side at the bottom is connected to the bottom plate (102).

8. A turning device for a multi-stage pump bearing body according to claim 1, characterized in that, The diameter of the through hole (14) is larger than the diameter of the stud (4).

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