CN201818621U - Embedded screw structure for cover plate of generator - Google Patents
Embedded screw structure for cover plate of generator Download PDFInfo
- Publication number
- CN201818621U CN201818621U CN2010202693350U CN201020269335U CN201818621U CN 201818621 U CN201818621 U CN 201818621U CN 2010202693350 U CN2010202693350 U CN 2010202693350U CN 201020269335 U CN201020269335 U CN 201020269335U CN 201818621 U CN201818621 U CN 201818621U
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- screw
- cover plate
- groove
- generator
- lock sheet
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Abstract
The utility model provides an embedded screw structure for a cover plate of a generator, relating to the field of mechanical fastening and connection. The technical scheme is as follows: the cover plate of the generator is connected with an embedded screw; the end surface of the head part of the embedded screw is provided with a concave hole; the upper surface of the cover plate of the generator is provided with a groove; a locking sheet is embedded in a concave chamber which is formed by connecting the concave hole and the groove; the locking sheet is strip-shaped; one end of the locking sheet is embedded in the concave hole of the embedded screw; the other end of the locking sheet is embedded in the groove of the cover plate of the generator; and the locking sheet is fixed with the groove by screws that are connected with the cover plate of the generator. The embedded screw structure has the benefits that the cover plate of generator and the embedded screw with large difference on material hardness can be fastened by threads, and straddle screws can not be used; and the rotation of the embedded screw can be restricted by the locking sheet, thus ensuring the embedded screw not to be loosened. The locking sheet is connected with the cover plate of the generator by the screws, so that the disassembling and assembling process of the locking sheet is convenient. After the generator is maintained, the disassembled embedded screw can be assembled, and the production cost can be saved.
Description
Technical field
The utility model relates to the structure that a kind of mechanical fasteners connects, and especially relates to a kind of generator cover plate and inlays the structure that screw is fastenedly connected with it.
Background technique
In general mechanical connection,, junction of the edges of two sheets of paper screw is set in the assembling joint for axle sleeve and the part of inlaying in its hole are connected firmly.Chinese patent notification number CN2572091Y, date of declaration on September 10th, 2003, name is called the utility model patent of " a kind of connection tapered sleeve that is loaded and unloaded fast by junction of the edges of two sheets of paper screw ", disclosed technological scheme is: a kind of connection tapered sleeve that is loaded and unloaded fast by junction of the edges of two sheets of paper screw, constitute by tapered sleeve and junction of the edges of two sheets of paper screw, done swelling seam on the tapered sleeve wall, in the tapered sleeve junction of the edges of two sheets of paper position equipped with wheel hub, do on the tapered sleeve with wheel hub on the identical semicircle blind hole of semicircle assembling screw; Do on the tapered sleeve with wheel hub on the semicircle dismounting screw that coincide of semicircle blind hole, when junction of the edges of two sheets of paper screw insertion semicircle assembling screw is threaded to the semicircle blind hole bottom of withstanding on the tapered sleeve, tapered sleeve contraction deformation swelling is gradually wedged in the taper hole of wheel hub, and wheel is fastenedly connected on axle; Junction of the edges of two sheets of paper screw is screwed in when being threaded to the semicircle blind hole bottom of withstanding on the wheel hub in the semicircle knockout screw hole, tapered sleeve can be withdrawed from the taper hole of wheel hub.This junction of the edges of two sheets of paper bolt structure is not suitable for using with inlaying under the situation that these two kinds of material hardness of part differ greatly in its hole at axle sleeve.
The generator cover plate that the power station uses is aluminum material, and the inlay screw fastening with it is stainless steel material, inlays screw and is threaded with cover plate.Because two kinds of material hardnesses that assembling connects differ too big, can not use and play junction of the edges of two sheets of paper screw in the assembling joint and limit and inlay the loosening structure of screw.In order to be connected firmly, can only to lock by internal thread on the extrusion-deformation generator cover plate and inlay being threaded of screw and generator cover plate.Like this, not only coupling mechanism force is not enough, and the screw thread distortion, inlays screw dismounting difficulty when causing generator to safeguard.And, owing to destroyed the internal thread of generator cover plate, after generator is safeguarded and is finished, also need be on the generator cover plate tapping again, and do one again and inlay screw with the new tapping of generator cover plate is complementary.This method is inconvenient operation not only, and has increased cost of production.
Summary of the invention
In order to overcome the connected screw dismounting complex procedures of inlaying of power station generator cover plate, maintain a generator and need prepare the new defective of inlaying screw again, reach dismounting and inlay screw conveniently, save the purpose of cost, the utility model provides a kind of generator cover plate to inlay screw structural.
The technical solution of the utility model is: a kind of generator cover plate is inlayed screw structural, comprise generator cover plate and the screw of inlaying that is connected with the generator cover plate, the head end of inlaying screw is provided with pit, the upper surface of generator cover plate is provided with groove, the cavity that is connected to form at pit and groove is embedded in lock sheet, lock sheet is a strip, lock sheet one end embeds the pit of inlaying screw, the lock sheet the other end embeds the groove of motor cover plate, and lock sheet is fixed by the screw and the groove that are connected with the generator cover plate.Lock sheet has limited the rotation of inlaying screw, does not need on the extrusion-deformation generator cover plate internal thread can guarantee to inlay screw and can not become flexible.Lock sheet is connected with screw with the generator cover plate, makes things convenient for the lock sheet dismounting.Inlay the screw fixation, easy accessibility.After generator was safeguarded, the screw of inlaying of installing dismounting got final product, and saves production cost.
As preferably, it is cylindrical inlaying screw, its cylindrical outer surface is provided with screw thread, uniform 2 to 4 pits of its head end, the pit cross section is the L type, pit is breach here at the cylindrical of inlaying screw, and the width of pit and the width of lock sheet are complementary, and the degree of depth of pit is greater than the height of lock sheet; Lock sheet embeds pit, and the aspect ratio pit of lock sheet is low, and lock sheet can not expose inlays the screw end face, does not influence to inlay cooperating of screw and other part.According to the size of inlaying screw and generator cap board size that cooperates, select the pit of varying number.
As preferably, the generator cover plate is provided with tapped through hole, tapped through hole with inlay screw and be complementary, on the circle edge of the outer surface thread through hole of generator cover plate groove is set, groove is corresponding with the pit of inlaying screw, and groove cross section is the L type, groove here is a breach at the tapped through hole circumference, the groove another side is provided with tapped blind hole, and the width of groove and the width of lock sheet are complementary, and the degree of depth of groove is greater than the height of lock sheet; Groove equates that with pit quantity groove and pit are connected to form cavity, and lock sheet embeds cavity, and the aspect ratio groove of lock sheet is low, and lock sheet can not expose generator cover plate outer surface, does not influence cooperating of generator cover plate and other part.
As preferably, one of lock sheet is provided with through hole, embeds in the cavity that is connected to form by pit and groove at lock sheet, and the shaft axis of through hole overlaps with the shaft axis of tapped blind hole; The screw that passes the lock sheet through hole is connected with the tapped blind hole of motor cover plate, and lock sheet is fixed on the motor cover plate.
Compared with prior art, the utility model beneficial effect is:
1, the generator cover plate that differs greatly of two kinds of material hardness can not use junction of the edges of two sheets of paper screw with to inlay screw thread fastening, limits the rotation of inlaying screw with lock sheet, and it is loosening to have guaranteed to inlay screw.
2, lock sheet is connected with screw with the generator cover plate, makes things convenient for the lock sheet dismounting.
3, after generator was safeguarded, the screw of inlaying of installing dismounting got final product, and saves production cost.
Description of drawings
Accompanying drawing 1 is inlayed the plan view of screw structural for a kind of generator cover plate of the utility model;
Accompanying drawing 2 is inlayed the plan view of screw structural for a kind of generator cover plate of the utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, generator cover plate 1 is provided with tapped through hole 13.Inlay screw 2 for cylindrical, inlay screw 2 cylindrical outer surfaces screw thread is set, tapped through hole 13 with inlay screw 2 screw threads and fix.Inlay screw 2 head end and pit 21(is set) referring to Fig. 2.Pit 21 cross sections are the L type, and pit 21 is breach here at the cylindrical of inlaying screw 2.The degree of depth of pit 21 is greater than the height of lock sheet 3.The circle edge of the outer surface of generator cover plate 1, tapped through hole 13 is provided with groove 11(referring to Fig. 2).Groove 11 cross sections are the L type, and groove 11 is a breach here at tapped through hole 13, and the another side of groove 11 is provided with tapped blind hole 12.The degree of depth of groove 11 is greater than the height of lock sheet 3.Lock sheet 3 is a strip, and lock sheet 3 is embedded in the cavity that groove 11 and pit 21 be connected to form.The through hole 31 of 3 one settings of lock sheet penetrates screw 4 in the through hole 31, screw 4 is connected with tapped blind hole 12.
As shown in Figure 2, inlay uniform 2 to 4 pits 21 of screw 2 head end, select 4 pits 21 when inlaying screw and generator cap board size when big, ordinary circumstance is selected 2 pits 21 for use.The width of pit 21 equates with the width of lock sheet 3.Groove 11 width equate with the width of lock sheet 3.Groove 11 equates with pit 21 quantity, the cavity that groove 11 and pit 21 are connected to form.
To inlay screw 2 screws in the tapped through hole 13 of generator cover plate 1, when inlaying screw 2 end faces and generator cover plate 1 outer surface when concordant, the breach that to inlay screw 2 pits 21 aligns with the breach of generator cover plate 1 groove 11, make groove 11 and pit 21 be connected to form cavity, embed lock sheet 3 in cavity, lock sheet 3 is provided with through hole 31 these embedding grooves 11 tapped blind hole 12 these heads is set.Penetrate screw 4 in through hole 31, screw 4 is screwed in tapped blind holes 12 and tighten, lock sheet 3 is fixed in the cavity.Like this, inlaying screw 2 is locked on generator cover plate 1.
Turn on screw 4, lock sheet 3 is connected to form the cavity from groove 11 and pit 21 takes out, screw 2 is inlayed in rotation, will inlay screw 2 and pull down from generator cover plate 1.
Claims (4)
1. a generator cover plate is inlayed screw structural, comprise generator cover plate (1) be connected with generator cover plate (1) inlay screw (2), it is characterized in that: the head end of inlaying screw (2) is provided with pit (21), the upper surface of generator cover plate (1) is provided with groove (11), the cavity that is connected to form at pit (21) and groove (11) is embedded in lock sheet (3), lock sheet (3) is a strip, lock sheet (3) one ends embed inlays the pit (21) of screw (2), lock sheet (3) the other end embeds the groove (11) of motor cover plate (1), and lock sheet (3) is fixing with groove (11) by the screw (4) that is connected with generator cover plate (1).
2. generator cover plate according to claim 1 is inlayed screw structural, it is characterized in that: inlay screw (2) for cylindrical, its cylindrical outer surface is provided with screw thread, uniform 2 to 4 pits of its head end (21), pit (21) cross section is the L type, pit (21) is breach here at the cylindrical of inlaying screw (2), and the width of the width of pit (21) and lock sheet (3) is complementary, and the degree of depth of pit (21) is greater than the height of lock sheet (3).
3. generator cover plate according to claim 1 is inlayed screw structural, it is characterized in that: generator cover plate (1) is provided with tapped through hole (13), tapped through hole (13) with inlay screw (2) and be complementary, on the circle edge of the outer surface thread through hole (13) of generator cover plate (1), groove (11) is set, groove (11) is corresponding with the pit of inlaying screw (2) (21), groove (11) cross section is the L type, groove (11) here is a breach at tapped through hole (13) circumference, groove (11) another side is provided with tapped blind hole (12), the width of the width of groove (11) and lock sheet (3) is complementary, and the degree of depth of groove (11) is greater than the height of lock sheet (3).
4. inlay screw structural according to claim 1 or 3 described generator cover plates, it is characterized in that: one of lock sheet (3) is provided with through hole (31), embed in the cavity that is connected to form by pit (21) and groove (11) at lock sheet (3), the shaft axis of through hole (31) overlaps with the shaft axis of tapped blind hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202693350U CN201818621U (en) | 2010-07-23 | 2010-07-23 | Embedded screw structure for cover plate of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202693350U CN201818621U (en) | 2010-07-23 | 2010-07-23 | Embedded screw structure for cover plate of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818621U true CN201818621U (en) | 2011-05-04 |
Family
ID=43916577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202693350U Expired - Lifetime CN201818621U (en) | 2010-07-23 | 2010-07-23 | Embedded screw structure for cover plate of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438082A (en) * | 2013-08-30 | 2013-12-11 | 无锡宝南机器制造有限公司 | Adjusting and locking device |
| CN110178454A (en) * | 2016-12-22 | 2019-08-27 | 恩德莱斯和豪瑟尔欧洲两合公司 | The fixed device of lid for dispenser casing |
-
2010
- 2010-07-23 CN CN2010202693350U patent/CN201818621U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438082A (en) * | 2013-08-30 | 2013-12-11 | 无锡宝南机器制造有限公司 | Adjusting and locking device |
| CN110178454A (en) * | 2016-12-22 | 2019-08-27 | 恩德莱斯和豪瑟尔欧洲两合公司 | The fixed device of lid for dispenser casing |
| US11044826B2 (en) | 2016-12-22 | 2021-06-22 | Endress+Hauser SE+Co. KG | Cover-securing means for a transmitter housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo First Power Engineering Co., Ltd. Assignor: Ningbo Richstar Electric Power Engineering Co. Ltd.|Ningbo xuneng Electric Power Engineering Co., Ltd. Contract record no.: 2012330000389 Denomination of utility model: Embedded screw structure for cover plate of generator Granted publication date: 20110504 License type: Exclusive License Record date: 20120615 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110504 |
|
| CX01 | Expiry of patent term |