CN207145468U - A kind of large-scale shaft coupling attachment structure - Google Patents

A kind of large-scale shaft coupling attachment structure Download PDF

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Publication number
CN207145468U
CN207145468U CN201720859551.2U CN201720859551U CN207145468U CN 207145468 U CN207145468 U CN 207145468U CN 201720859551 U CN201720859551 U CN 201720859551U CN 207145468 U CN207145468 U CN 207145468U
Authority
CN
China
Prior art keywords
expansion sleeve
bullet
attachment structure
pad
shaft coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720859551.2U
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Chinese (zh)
Inventor
章涛
Original Assignee
章涛
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 章涛 filed Critical 章涛
Priority to CN201720859551.2U priority Critical patent/CN207145468U/en
Application granted granted Critical
Publication of CN207145468U publication Critical patent/CN207145468U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of large-scale shaft coupling attachment structure,Including the connecting shaft being set in flange connecting hole,The first nut is sequentially provided with the connecting shaft from left to right,First pad,Gland,Expansion sleeve,Second pad and the second nut,The end face of first pad is fitted in the flange left side,The end face of second pad is fitted in the flange right side,The connecting shaft is provided with bullet,The expansion sleeve is set in outside the bullet,And the contact surface between the outer wall of the inwall of the expansion sleeve and the bullet is inclined-plane,The side wall of the expansion sleeve offers a strip gab,Axis of the length direction of the strip gab parallel to the connecting shaft,The side wall of the expansion sleeve is bonded with the connecting hole inwall of the flange,The both ends of the gland respectively with first pad,The expansion sleeve end contact.The large-scale shaft coupling attachment structure of the utility model, simple in construction, quick and easy for installation, bonding strength is high, service life length.

Description

A kind of large-scale shaft coupling attachment structure
Technical field
A kind of shaft coupling is the utility model is related to, more particularly to a kind of large-scale shaft coupling attachment structure.
Background technology
Large-scale shaft coupling is used to connect large-scale power transmission shaft, because volume is big, so the moment of torsion born is big.Traditional connection Axle device is connected by plain bolt, and due to there are gap between bolt outer wall and flange connecting hole inwall, shaft coupling is rotating In shutdown process, two flanges can produce certain phase difference, and shearing force is formed to bolt, and if things go on like this, can produce bolt should Power is concentrated, and final deformation even fractures, and influences normally to connect, causes potential safety hazard;Also have by the way that bolt external diameter and flange are connected Connect hole internal diameter to be processed into unanimously, but in bolt rundown process, influenceed by axial force, make bolt tension, produce slight Deformation, so that bolt outer wall produces gap with flange connecting hole inwall, shear effect is formed, is easily damaged.
Utility model content
【1】Technical problems to be solved
The technical problems to be solved in the utility model is to provide a kind of simple and compact for structure, good connecting effect, service life Long large-scale shaft coupling attachment structure.
【2】The technical scheme solved the problems, such as
The utility model provides a kind of large-scale shaft coupling attachment structure, and it includes being set in the connecting shaft in flange connecting hole 1, the first nut 5, the first pad 4, gland 3, expansion sleeve 2, the and of the second pad 6 are sequentially provided with from left to right in the connecting shaft 1 Second nut 7, the end face of first pad are fitted in the flange left side, and the end face of second pad is fitted in described Flange right side, the connecting shaft 1 are provided with bullet, and the expansion sleeve 2 is set in outside the bullet, and the expansion sleeve Inwall and the bullet outer wall between contact surface be inclined-plane, the side wall of the expansion sleeve offers a strip gab, The length direction of the strip gab is parallel to the axis of the connecting shaft, the connection of the outer wall of the expansion sleeve and the flange The fitting of hole inwall, the both ends of the gland respectively with first pad, the expansion sleeve end contact.
Further, the connecting shaft includes being sequentially connected the first threaded body 11, the first polished rod 12, bullet 13, the Two polished rods 14 and the second threaded body 15, first threaded body are provided with external screw thread with second threaded body.
Further, first threaded body is identical with the length of second threaded body, and first polished rod and institute The length for stating the second polished rod is identical.
Further, the length of the bullet is more than the 1/2 of flange connecting hole depth and is less than flange connecting hole depth 3/4.
Further, the side wall of the bullet is circumferentially evenly equipped with strip groove, and the length direction of the strip groove is put down Row is in the axis direction of the connecting shaft.
Further, the angle between the axis of the side wall of the bullet and the connecting shaft is more than or equal to 3 degree and small In equal to 15 degree.
Further, the angle between the axis of the side wall of the bullet and the connecting shaft is 8 degree.
【3】Beneficial effect
The large-scale shaft coupling attachment structure of the utility model, it is simple in construction, promote expansion sleeve to move axially by gland, so as to Under the ramp effect of bullet, expand expansion sleeve deformation, the inwall of flange connecting hole is bonded using the outer wall of expansion sleeve, from And eliminate the gap between connecting shaft and flange connecting hole inwall, shaft coupling rotate start and stop when, be not in two flanges it Between rotation phase it is poor, quick and easy for installation, bonding strength is high, service life length.
Brief description of the drawings
Fig. 1 is the structural representation of the large-scale shaft coupling attachment structure of the utility model;
Fig. 2 is the structural representation of the connecting shaft of the large-scale shaft coupling attachment structure of the utility model.
Embodiment
Below in conjunction with the accompanying drawings, the utility model embodiment is discussed in detail.
Refering to Fig. 1 and Fig. 2, the utility model provides a kind of large-scale shaft coupling attachment structure, and it includes being set in flange company The connecting shaft 1 in hole is connect, is sequentially provided with the first nut 5, the first pad 4, gland 3, expansion sleeve from left to right in the connecting shaft 1 2nd, the second pad 6 and the second nut 7, the end face of the first pad are fitted in flange left side, and the end face of the second pad is fitted in method Blue right side, bullet being provided with connecting shaft 1, expansion sleeve 2 is set in outside bullet, and the inwall of expansion sleeve and bullet Contact surface between outer wall is inclined-plane, while offers a strip gab, the length side of the strip gab in the side wall of expansion sleeve To the axis parallel to connecting shaft, the strip gab deforms for expansion sleeve, the side wall (outer wall) of expansion sleeve and the connection of flange Hole inwall fitting, gland is cylindrical shape, and the both ends of gland are used to push away with the first pad, expansion sleeve end contact, gland respectively Dynamic expansion sleeve axial movement, so that it is deformed and becomes big, and is finally bonded with connecting hole inwall;Company in the present embodiment Spindle includes the first threaded body 11, the first polished rod 12, bullet 13, the second polished rod 14 and the second threaded body 15 being sequentially connected, External screw thread is provided with the first threaded body and the second threaded body;And first threaded body it is identical with the length of the second threaded body, simultaneously First polished rod is identical with the length of the second polished rod, i.e., bullet is located at center;The length of bullet in the present embodiment is more than method Orchid connects the 1/2 of hole depth (total depth of the connecting hole of two flanges) and less than the 3/4 of flange connecting hole depth;And in bullet Side wall be circumferentially evenly equipped with strip groove, the axis direction of the length direction of the strip groove parallel to connecting shaft.The present embodiment In, the angle between the side wall of bullet and the axis of connecting shaft is more than or equal to 3 degree and less than or equal to 15 degree, preferably 8 degree.
The large-scale shaft coupling attachment structure of the utility model, it is simple in construction, promote expansion sleeve to move axially by gland, so as to Under the ramp effect of bullet, expand expansion sleeve deformation, the inwall of flange connecting hole is bonded using the outer wall of expansion sleeve, from And eliminate the gap between connecting shaft and flange connecting hole inwall, shaft coupling rotate start and stop when, be not in two flanges it Between rotation phase it is poor, quick and easy for installation, bonding strength is high, service life length.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change Enter and retouch and also should be regarded as the scope of protection of the utility model.

Claims (7)

  1. A kind of 1. large-scale shaft coupling attachment structure, it is characterised in that:Including the connecting shaft being set in flange connecting hole, the company It is sequentially provided with the first nut, the first pad, gland, expansion sleeve, the second pad and the second nut in spindle from left to right, described The end face of one pad is fitted in the flange left side, and the end face of second pad is fitted in the flange right side, described Connecting shaft is provided with bullet, and the expansion sleeve is set in outside the bullet, and the inwall of the expansion sleeve and the taper Contact surface between the outer wall of body is inclined-plane, and the side wall of the expansion sleeve offers a strip gab, the length of the strip gab Degree is oriented parallel to the axis of the connecting shaft, and the outer wall of the expansion sleeve is bonded with the flange connecting hole inwall, the pressure The both ends of set respectively with first pad, the expansion sleeve end contact.
  2. 2. large-scale shaft coupling attachment structure as claimed in claim 1, it is characterised in that:The connecting shaft includes what is be sequentially connected First threaded body, the first polished rod, bullet, the second polished rod and the second threaded body, first threaded body and second screw thread Body is provided with external screw thread.
  3. 3. large-scale shaft coupling attachment structure as claimed in claim 2, it is characterised in that:First threaded body and described second The length of threaded body is identical, and first polished rod is identical with the length of second polished rod.
  4. 4. large-scale shaft coupling attachment structure as claimed in claim 2, it is characterised in that:The length of the bullet is more than flange Connect the 1/2 of hole depth and less than the 3/4 of flange connecting hole depth.
  5. 5. large-scale shaft coupling attachment structure as claimed in claim 1, it is characterised in that:The side wall of the bullet is circumferentially uniform There is a strip groove, the axis direction of the length direction of the strip groove parallel to the connecting shaft.
  6. 6. large-scale shaft coupling attachment structure as claimed in claim 1, it is characterised in that:The side wall of the bullet and the company Angle between the axis of spindle is more than or equal to 3 degree and less than or equal to 15 degree.
  7. 7. large-scale shaft coupling attachment structure as claimed in claim 6, it is characterised in that:The side wall of the bullet and the company Angle between the axis of spindle is 8 degree.
CN201720859551.2U 2017-07-16 2017-07-16 A kind of large-scale shaft coupling attachment structure Expired - Fee Related CN207145468U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720859551.2U CN207145468U (en) 2017-07-16 2017-07-16 A kind of large-scale shaft coupling attachment structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720859551.2U CN207145468U (en) 2017-07-16 2017-07-16 A kind of large-scale shaft coupling attachment structure

Publications (1)

Publication Number Publication Date
CN207145468U true CN207145468U (en) 2018-03-27

Family

ID=61675409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720859551.2U Expired - Fee Related CN207145468U (en) 2017-07-16 2017-07-16 A kind of large-scale shaft coupling attachment structure

Country Status (1)

Country Link
CN (1) CN207145468U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283029A (en) * 2020-10-26 2021-01-29 华能国际电力开发公司吉林白城风电分公司 Locking flange plate applied to variable propeller shaft of wind motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112283029A (en) * 2020-10-26 2021-01-29 华能国际电力开发公司吉林白城风电分公司 Locking flange plate applied to variable propeller shaft of wind motor

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180327

Termination date: 20180716

CF01 Termination of patent right due to non-payment of annual fee