CN110900023A

CN110900023A - Machining process for driving device of thickener

Info

Publication number: CN110900023A
Application number: CN201911346140.3A
Authority: CN
Inventors: 陈爱民; 王秋生; 万大勇
Original assignee: Jiangsu New Hongda Group Co Ltd
Current assignee: Jiangsu New Hongda Group Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-03-24

Abstract

The invention relates to a processing technology of a thickener driving device, which comprises the specific steps of respectively and independently welding and processing an upper section part (2) and a lower section part (3) of a lifting shaft assembly (1) of the thickener driving device, clamping the lower section part (3) to an upper adjusting plane inner hole (4) of a vertical lathe workbench to be concentric with the workbench, assembling and fixedly welding the upper section part (2) and the lower section part (3), ensuring the coaxiality and verticality tolerance requirements of a drawing at the adjusting upper end, and firmly fixing by using a reinforcing support to prevent welding deformation after the adjustment is qualified. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result. By adopting the process, the large-scale equipment can be prevented from being purchased again, the large-scale equipment investment of a company is reduced, a large amount of gold processing cost can be saved for the company, and the same technical effect can be achieved under the condition of greatly reducing the cost.

Description

Machining process for driving device of thickener

Technical Field

The invention relates to the field of gravity settling separation equipment for a clarifying tank, in particular to a processing technology of a driving device of a thickener.

Background

The thickener is a main device which is applied to various industries and realizes the separation of homogeneous phase liquid-solid phase mixtures based on the gravity settling effect, is a production device with large volume, small power, low rotating speed and large torque, mostly runs uninterruptedly for a long time, and has high requirements on the safe operation of the device, wherein a driving device is a main constituent part of the thickener. An important component in the drive, "lift shaft", is the weld workpiece. The company newly develops a batch of large-scale thickener drive arrangement this year, and the lift shaft part among the biggest HDNM224 type drive arrangement at present gyration diameter reaches 3M, and length reaches 3.5M, and need guarantee axiality 0.35mm, straightness 0.12mm that hangs down after the processing. If the conventional machining process is adopted for production, the final metal machining of the oversized part cannot meet the machining requirement by the existing equipment of the current company. If the large-scale equipment needs to be bought again, the processing cost is tens of thousands of elements if external cooperation processing is sought, and the production cost is greatly increased.

Disclosure of Invention

In view of this, the invention is expected to provide a processing technology for a driving device of a thickener, which adopts a processing technology that shape and position tolerances are guaranteed by integral assembly welding after split welding processing, so that the purchase of large-scale equipment can be avoided, and the investment on the large-scale equipment of a company is reduced.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the invention provides a processing technology of a driving device of a thickener, which is characterized by comprising the following steps: the upper section part and the lower section part of the thickener driving device are separately welded, manufactured and processed, then the lower section part is clamped to an inner hole of a calibration plane on a vertical lathe workbench to be concentric with the workbench, then the upper section part and the lower section part are assembled, fixed and welded, the coaxiality and verticality tolerance requirements of a drawing are guaranteed at the calibration upper end, and after the calibration is qualified, the welding deformation is firmly prevented by reinforcing support and fixing. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result.

Further, the coaxiality is 0.35-0.5 mm.

Further, the perpendicularity is 0.08-0.12 mm.

Further, the diameter of the upper section flange is 680 mm.

Further, the overall height of the component is 2800 and 3500 mm.

Further, the length of the lower section is 1200-1900 mm.

Further, the width of the lower section is 1200-1900 mm.

The invention provides a processing technology of a thickener driving device, which adopts a processing technology of ensuring form and position tolerance by integral assembly welding after split welding processing, can avoid purchasing large equipment again, reduce the investment of the large equipment of a company, also can save a large amount of metal processing cost for the company, and can still achieve the same technical effect under the condition of greatly reducing the cost.

Drawings

FIG. 1 is a schematic view of a thickener driving device processing technology;

wherein, 1 is a thickener driving device lifting shaft component, 5 is an upper section flange diameter, 6 is a component integral height, 7 is a lower section length, and 8 is a lower section width;

FIG. 2 is a front view of an upper section of a thickener drive lift shaft assembly;

wherein 2 is the upper section;

FIG. 3 is a partial front view of a lower section of a thickener drive lift shaft assembly;

wherein 3 is a lower section part and 4 is a plane inner hole.

Detailed Description

So that the manner in which the features and aspects of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.

The core of the specific implementation mode of the invention is to provide a processing technology of a thickener driving device, wherein an upper section part 2 and a lower section part 3 of the thickener driving device 1 are respectively and independently welded, manufactured and processed, then the lower section part 3 is clamped to an upper adjusting plane inner hole 4 of a vertical lathe workbench to be concentric with the workbench, then the upper section part 2 and the lower section part 3 are assembled, fixed and welded, the upper end is adjusted to ensure the coaxiality and verticality tolerance requirements of a drawing, and after the adjustment is qualified, the welding deformation is firmly prevented by reinforcing support and fixing. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result.

Further, the coaxiality is 0.35-0.5 mm.

Further, the perpendicularity is 0.08-0.12 mm.

Further, the diameter 5 of the upper section flange is 680 mm.

Further, the overall height 6 of the component is 2800 and 3500 mm.

Further, the length of the lower section 7 is 1200-1900 mm.

Further, the width 8 of the lower section is 1200-1900 mm.

Example 1:

the integral height 6 of the part of the lifting shaft assembly 1 of the HDNM224 type thickener driving device is 3500mm, the length of the lower section is 1900mm, the width of the lower section is 1900mm, the upper section part 2 and the lower section part 3 of the device 1 are respectively and independently welded, processed, the lower section part 3 is clamped to an upper adjusting plane inner hole 4 of a vertical lathe workbench and concentric with the workbench, the upper section part 2 and the lower section part 3 are assembled, fixed and welded, the requirement of drawing coaxiality and verticality tolerance is ensured at the upper end of the adjustment, and the welding deformation is firmly prevented by reinforcing support fixing after the adjustment is qualified. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result. Finally, the coaxiality and the verticality are detected to be 0.35mm and 0.08mm, and the tolerance requirements of the coaxiality and the verticality are met.

Example 2:

the whole height 6 of HDNM180 type thickener drive arrangement lifting shaft subassembly 1's part is 3200mm, hypomere length 7 is 1700mm, hypomere width 8 is 1700mm, weld the preparation, processing separately with upper segment part 2 and hypomere part 3 of this device 1, then with hypomere part 3 clamping to the stand workstation on the alignment plane hole 4 concentric with the workstation, again with upper segment part 2 and hypomere part 3 equipment fixed welding, and the alignment upper end guarantees the drawing axiality, the straightness tolerance requirement of hanging down, fix firmly with strengthening the support after the alignment is qualified and prevent welding deformation. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result. Finally, the coaxiality and the verticality are tested to be 0.45mm and 0.10mm, and the tolerance requirements of the coaxiality and the verticality are met.

Example 3:

the integral height 6 of the part of the lifting shaft assembly 1 of the HDNM140 type thickener driving device is 2800mm, the length 7 of the lower section is 1200mm, the width 8 of the lower section is 1200mm, the upper section part 2 and the lower section part 3 of the device 1 are respectively and independently welded and processed, then the lower section part 3 is clamped to an inner hole 4 of a calibration plane on a vertical lathe workbench and concentric with the workbench, the upper section part 2 and the lower section part 3 are assembled, fixed and welded, the requirement of drawing coaxiality and verticality tolerance is guaranteed at the upper end of calibration, and after the calibration is qualified, the welding deformation is firmly prevented by reinforcing support fixing. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result. Finally, the coaxiality and the verticality are tested to be 0.40mm and 0.10mm, and the tolerance requirements of the coaxiality and the verticality are met.

The above-mentioned general knowledge is not described in detail, and can be understood by those skilled in the art.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A processing technology of a driving device of a thickener is characterized in that: will thickener drive arrangement lift shaft subassembly (1) upper segment part (2) and hypomere part (3) weld the preparation, process separately respectively, then with hypomere part (3) clamping to the merry go round machine workstation on adjust plane hole (4) concentric with the workstation, again with upper segment part (2) and hypomere part (3) equipment fixed welding to adjust the upper end and guarantee drawing axiality, straightness tolerance requirement of hanging down, adjust qualified back with strengthening to support fixedly prevent welding deformation.

2. And finally welding, wherein the coaxiality and verticality are detected after each welding in the welding process, and the welding sequence is adjusted according to the inspection result.

3. The method of claim 1, wherein: the coaxiality is 0.35-0.5 mm.

4. The method of claim 1, wherein: the verticality is 0.08-0.12 mm.

5. The method of claim 1, wherein: the diameter (5) of the upper section flange is 680 mm.

6. The method of claim 1, wherein: the overall height (6) of the component is 2800-3500 mm.

7. The method of claim 1, wherein: the length (7) of the lower section is 1200-1900 mm.

8. The method of claim 1, wherein: the width (8) of the lower section is 1200-1900 mm.