CN210669827U

CN210669827U - Expansible core shaft and protective sleeve for processing deep well submersible motor shell

Info

Publication number: CN210669827U
Application number: CN201922326042.5U
Authority: CN
Inventors: 王化祯; 李爱科
Original assignee: Liaoning Juji Machinery Technology Research And Development Co Ltd
Current assignee: Liaoning Juji Machinery Technology Research And Development Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-06-02
Anticipated expiration: 2029-12-20

Abstract

The utility model discloses a processing deep well dive motor casing is with expanded dabber and protective sheath, the expanded dabber is by dabber 1, left side bloated lamella 21, right side bloated lamella 22, adjustment axle sleeve 3, taper sleeve 4, spacer sleeve 5, lock nut 6 constitutes, left side bloated lamella 21 cover is at dabber 1, and extrude through left inclined plane A and lean on at dabber 1, adjustment axle sleeve 3 and right side bloated lamella 22 overlap in proper order at dabber 1, taper sleeve 3 extrudees through right inclined plane B and leans on right side bloated lamella 22, spacer sleeve 5 covers on dabber 1 and withstands taper sleeve 4, spacer sleeve 5 is pinned by lock nut 6 on the screw in dabber 1. The beneficial effects of the utility model are that processing deep well dive motor casing is with expanded dabber and protective sheath, increased machining precision, improved machining efficiency, assurance processingquality and yield.

Description

Expansible core shaft and protective sleeve for processing deep well submersible motor shell

Technical Field

The utility model relates to a processing deep well dive motor casing is with dabber and protective sheath that can expand.

Background

Among the prior art, the casing subassembly of deep well submersible motor is deep well submersible motor's key parts, comprises deep well submersible motor's steel pipe casing, stator core, electromagnetic wire winding, upper and lower flange, and the good quality and bad of casing subassembly are whole deep well submersible motor performance key factor, and especially deep well submersible motor receives the restriction of well diameter, and its structure is long and thin structure, and this has just brought very big difficulty for the rule of electromagnetic wire winding, the processing of upper and lower flange, and conventional manufacturing process is in the past: processing an inner hole of the shell → pressing the stator core → welding the upper flange and the lower flange → embedding the electromagnetic wire winding → processing the upper flange and the lower flange. The key link in this process route is: 1. the winding rule of electromagnetic wire is accomplished in the casing, owing to receive casing length, upper and lower flange structure's influence, the efficiency of winding rule is very low, 2 the processing of upper and lower flange, there are two problems in machining in upper and lower flange: firstly, the upper and lower flange processes respectively how to guarantee the dimensional accuracy of upper and lower flange tang, the geometric tolerance of upper and lower flange and iron core hole, and conventional processing method in the past is with the one end that the iron core hole was propped to extension iron claw (or child that expands), processes the flange of the other end, then turns round processing other end flange, because deep well dive motor's specification is different, the length of casing and iron core is different, and dimensional accuracy has guaranteed, but, the geometric accuracy is lower. Secondly, how to guarantee that the iron fillings that splash do not harm winding electromagnetic wire when mechanical machining, because the deep well submersible motor that we made is wet-type and fills water formula submersible motor, fill water formula submersible motor electromagnetic wire is in the outside cladding of copper line a very thin layer waterproof insulating plastics, the iron fillings temperature that splashes is very high when processing, again in narrow and small casing, very easily injure the plastics skin of electromagnetic wire, bring the injury or leave the hidden danger for whole motor.

Disclosure of Invention

The invention solves the technical problem of overcoming the defects of the prior art and provides an expandable mandrel and a protective sleeve for processing a deep well submersible motor shell.

The technical scheme adopted by the invention is as follows: processing deep well dive motor casing is with expanded dabber and protective sheath, the expanded dabber comprises dabber, left side expansion lamella, right side expansion lamella, the adjustment axle sleeve, the taper sleeve, the spacer sleeve, lock nut, left side expansion lamella overlaps at the dabber to lean on at the dabber through left inclined plane is crowded, adjustment axle sleeve and right expansion lamella overlap in proper order at the dabber, the taper sleeve is crowded to lean on right expansion lamella through right inclined plane, the spacer sleeve cover is at the dabber and withstands the taper sleeve, the spacer sleeve is pinned by the epaxial lock nut of screw in dabber. The left expansion valve and the right expansion valve are provided with a pin groove and a split groove. The inclined plane of the mandrel is provided with a left anti-rotation pin. The inclined plane of the conical sleeve is provided with a right anti-rotation pin. When the shell is machined, the inner hole of the stator core is used as a positioning reference, the diameter size of the expansion inclined plane is designed according to the inner hole of the stator core, the left expansion flap is matched with the mandrel to form a left inclined plane, and the right expansion flap is matched with the conical sleeve to form a right inclined plane. The mandrel and the conical sleeve are provided with positioning pins, so that the left and right expansion flaps do not rotate and move linearly along the axial direction when being clamped. The length of the adjusting shaft sleeve is determined according to the model specification of the casing and the different stacking heights of the stator core, and when the casing with the same well diameter is machined, only different adjusting shaft sleeves and different blocking sleeves need to be replaced. The left expansion flap and the right expansion flap are made of tool steel T10A, and after heat treatment, the hardness and the mechanical strength of the left expansion flap and the right expansion flap are enhanced, so that the wear resistance of the expansion flaps is improved, the repeated use of the expansion flaps is ensured, and the utilization rate of tools is improved.

Winding protective sleeves are arranged between the left flange and the machine shell and between the lower flange and the machine shell. The winding protective sheath be middle through-hole, middle through-hole size is greater than casing hole size, winding protective sheath one end be equipped with the tang platform, tang clearance fit in tang platform and the flange, the winding protective sheath other end be equipped with the toper section, the winding solenoid is overlapped outside at the toper end. The winding protective sleeve is made of nylon. The winding protective sheath is according to the casing model difference, the difference of height, is made by the car system of nylon material, packs into motor housing with it before the processing flange in, like this, adds the iron fillings that the processing was turned out and just can't harm the winding electromagnetic wire.

The utility model discloses deep well dive motor casing's processing method is: the prior shell processing technology is changed, and the process route is as follows: processing the inner hole of the shell → welding the lower flange → pressing and installing the stator embedded with the wire → welding the left flange → installing the winding protective sleeve → lathing the flange rabbets and the planes at the two ends of the expansible mandrel positioned in the inner hole of the upper iron core. The process not only maintains the requirements of machining precision and form and position tolerance, but also ensures that the winding electromagnetic wire is not damaged in the machining process. In addition, the wire embedding work of the iron core is carried out outside the shell, namely the normal wire embedding work, so that the wire embedding quality is ensured, the wire embedding efficiency is also improved, and the efficiency is improved by 2-3 times compared with the wire embedding work in the shell.

The invention has the advantages that the expandable mandrel and the protective sleeve for processing the deep well submersible motor shell increase the processing precision, improve the processing efficiency and ensure the processing quality and the yield.

Drawings

FIG. 1 is a schematic view of an assembly structure of an expandable mandrel and a protective sleeve for processing a deep well submersible motor casing according to the present invention;

FIG. 2 is a schematic structural view of the expandable mandrel for processing the deep well submersible motor casing of the present invention;

FIG. 3 is a schematic view of the structure of the winding protection sleeve in the expandable mandrel for processing the deep well submersible motor casing of the present invention;

fig. 4 is a schematic structural view of the expanding valve in the expandable mandrel for processing the deep well submersible motor shell of the present invention;

fig. 5 is a left side view of fig. 4.

Labeled as: 1-mandrel, 21-left expansion flap, 22-right expansion flap, 2 a-pin slot, 2B-split slot, 3-adjusting shaft sleeve, 4-taper sleeve, 5-blocking sleeve, 6-locking nut, 71-left flange, 72-right flange, 8-shell, 9-winding protective sleeve, 91-spigot platform, 92-taper section, 10-winding electromagnetic wire, 11-left anti-rotation pin, 12-right anti-rotation pin, A-left inclined plane and B-right inclined plane.

Detailed Description

The invention will be further explained with reference to the drawings. As shown in fig. 1 and fig. 2, the expansible mandrel and the protective sleeve for processing the deep well submersible motor casing are composed of a mandrel 1, a left expansion flap 21, a right expansion flap 22, an adjusting shaft sleeve 3, a conical sleeve 4, a retaining sleeve 5 and a locking nut 6, wherein the left expansion flap 21 is sleeved on the mandrel 1 and is extruded on the mandrel 1 through a left inclined plane a, the adjusting shaft sleeve 3 and the right expansion flap 22 are sequentially sleeved on the mandrel 1, the conical sleeve 3 is extruded on the right expansion flap 22 through a right inclined plane B, the retaining sleeve 5 is sleeved on the mandrel 1 and supports against the conical sleeve 4, and the retaining sleeve 5 is locked by the locking nut 6 screwed into the mandrel 1. The left expansion flap 21 and the right expansion flap 22 (shown in fig. 4 and 5) are provided with a pin groove 2a and a split groove 2 b. The inclined plane of the mandrel 1 is provided with a left anti-rotation pin 11. The inclined plane of the conical sleeve 4 is provided with a right anti-rotation pin 41. When the machine shell is processed, the inner hole of the stator core is used as a positioning reference, the diameter size of the expansion inclined plane is designed according to the inner hole of the stator core, the left expansion flap 21 is matched with the mandrel 1 to form a left inclined plane A, and the right expansion flap 22 is matched with the conical sleeve 4 to form a right inclined plane B. The mandrel 1 and the conical sleeve 4 are respectively provided with a positioning pin, so that the left and right expansion flaps do not rotate and move linearly along the axial direction when being clamped. The length of the adjusting shaft sleeve 3 is determined by the adjusting shaft sleeve 3 according to the model specification of the machine shell 1 and different stacking heights of the stator iron core, and when a machine shell 8 with the same well diameter is processed, only different adjusting shaft sleeves 3 and different blocking sleeves 5 need to be exchanged. The left and right expansion flaps are made of tool steel T10A, and after heat treatment, the hardness and mechanical strength of the left and right expansion flaps are enhanced, so that the wear resistance of the expansion flaps is improved, the repeated use of the expansion flaps is ensured, and the utilization rate of tools is improved.

Winding protection sleeves 9 (shown in fig. 3) are arranged between the left flange 71 and the machine shell 8 and between the right flange 72 and the machine shell. Winding protective sheath 9 be middle through-hole, middle through-hole size is greater than casing hole size, winding protective sheath 9 one end be equipped with tang platform 91, tang clearance fit in tang platform 91 and the flange, winding protective sheath 9 other end be equipped with toper section 92, winding solenoid cover 9 is outside at toper end 92. And the winding protective sleeve 9 is made of nylon. The winding protective sleeve 9 is formed by turning nylon materials according to different types and heights of the machine shell, and is arranged in the motor shell before the flange is machined, so that iron chips turned during machining cannot damage the winding electromagnetic wire 10.

Claims

1. Processing deep well dive motor casing is with dabber and protective sheath that can expand, its characterized in that: the expansible dabber comprises dabber (1), left side expansion flap (21), right side expansion flap (22), adjustment axle sleeve (3), taper sleeve (4), spacer sleeve (5), lock nut (6), left side expansion flap (21) cover is on dabber (1), and extrude through left inclined plane (A) and lean on dabber (1), adjustment axle sleeve (3) and right expansion flap (22) overlap in proper order on dabber (1), taper sleeve (4) extrude through right inclined plane (B) and lean on right expansion flap (22), spacer sleeve (5) cover is on dabber (1) and withstands taper sleeve (4), spacer sleeve (5) are locked by lock nut (6) on screw in dabber (1).

2. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 1, characterized in that: the left expansion valve (21) and the right expansion valve (22) are provided with a pin groove (2a) and a split groove (2 b).

3. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 1, characterized in that: the inclined surface of the mandrel (1) is provided with a left anti-rotation pin (11).

4. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 1, characterized in that: the inclined plane of the conical sleeve (4) is provided with a right anti-rotation pin (41).

5. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 1, characterized in that: the left expansion flap (21) and the right expansion flap (22) are made of tool steel T10A.

6. Processing deep well dive motor casing is with dabber and protective sheath that can expand, its characterized in that: winding protective sleeves (9) are arranged between the left flange (71) and the machine shell (8) and between the right flange (72) and the machine shell (8).

7. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 6, wherein: winding protective sheath (9) be middle through-hole, middle through-hole size is greater than casing (8) hole size, winding protective sheath (9) one end be equipped with tang platform (91), tang clearance fit in tang platform (91) and the flange, winding protective sheath (9) other end be equipped with toper section (92), winding electromagnetic wire (10) cover is outside at the toper end.

8. The expandable mandrel and the protective sleeve for processing the deep well submersible motor shell according to claim 6, wherein: the winding protective sleeve (9) is made of nylon.