CN103671397B - With the bolt assembly of locating function - Google Patents

With the bolt assembly of locating function Download PDF

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Publication number
CN103671397B
CN103671397B CN201310483489.8A CN201310483489A CN103671397B CN 103671397 B CN103671397 B CN 103671397B CN 201310483489 A CN201310483489 A CN 201310483489A CN 103671397 B CN103671397 B CN 103671397B
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CN
China
Prior art keywords
barb
bolt
thin
walled
gearbox
Prior art date
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Expired - Fee Related
Application number
CN201310483489.8A
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Chinese (zh)
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CN103671397A (en
Inventor
黄财明
邢艳红
李博
孙艳
陈杰
王瑞平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Ningbo Shangzhongxia Automatic Transmission Co Ltd
Zhejiang Geely Power Train Co Ltd
Hunan Luoyou Engine Parts Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Ningbo Shangzhongxia Automatic Transmission Co Ltd
Zhejiang Geely Luoyou Engine Co Ltd
Jinan Geely Auto Parts Co Ltd
Hunan Luoyou Engine Parts Co Ltd
Hunan Jisheng International Power Transmission System Co Ltd
Shandong Jili Transmission Co Ltd
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 Zhejiang Geely Holding Group Co Ltd, Ningbo Shangzhongxia Automatic Transmission Co Ltd, Zhejiang Geely Luoyou Engine Co Ltd, Jinan Geely Auto Parts Co Ltd, Hunan Luoyou Engine Parts Co Ltd, Hunan Jisheng International Power Transmission System Co Ltd, Shandong Jili Transmission Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201310483489.8A priority Critical patent/CN103671397B/en
Publication of CN103671397A publication Critical patent/CN103671397A/en
Application granted granted Critical
Publication of CN103671397B publication Critical patent/CN103671397B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

With a bolt assembly for locating function, comprise bolt, slide the abutment sleeve be nested with on the screw rod of bolt; Described abutment sleeve comprises sleeve body and is positioned at least three lobe barb thin-walleds of sleeve body near head one end of bolt, and barb thin-walled circumference distributes and becomes stepped shape with sleeve body, and the free end of barb thin-walled is provided with guide structure; The head of described bolt is provided with flange part, and flange part is provided with the barb guiding groove coordinated with barb thin-walled.Advantage is: compared with carrying out fit prior art of installing with the orientation type of employing cylindrical positioning pins, in the present invention, the housing of gearbox and motor decreases the processing in cylindrical positioning pins hole, reduce the difficulty of processing of the housing of gearbox and motor, easily, not easily there is defective mounting in the location of the connection of gearbox and motor, the connecting installation structure of gearbox and motor is simple, reliable operation, dismounting are easy.

Description

With the bolt assembly of locating function
Technical field
The present invention relates to the mounting technology field of motor car engine and gearbox, be specifically related to a kind of improvement of bolt fastening structure.
Background technique
Assembling is assembled the technical requirements of component by regulation, and make it through debugging, inspection the process becoming acceptable product.Assembling starts from the design of assembling drawing, works out assembly technology also extremely important simultaneously.Assembly technology is the important evidence instructing assembling work and process assembling work problem, it to guarantee assembly quality, improve Assembling Production efficiency, reduce costs and alleviate labor strength etc. and have positive effect.Current most car manufactures, to the location of the fit connection part of gearbox and motor, nearly all adopts the orientation type of cylindrical positioning pins to ensure the rotational concentricity of gearbox and motor.Cylindrical positioning pins generally used is two.Because cylindrical positioning pins and gearbox and motor are interference fit, clamping bolt is because of the restriction by space, fastening tightening operation can not be carried out simultaneously, be easy to cause that the mounting plane of gearbox can not be parallel and engine mounting plane snap, can only be first twist which side bolt, the mounting plane of which side gearbox, just first close to engine mounting plane, is so just easy to occur defective mounting.Once there is defective mounting, then after easily causing splined shaft to enter flywheel, destroy the internal structure of flywheel.
Summary of the invention
Goal of the invention of the present invention mainly solves the connection difficulty of gearbox existing for prior art and motor, easily occurs the technical problem of defective mounting, provide that a kind of structure is simple, the connection of gearbox and motor easily and not easily occur a kind of bolt assembly with locating function of defective mounting.
The present invention's technological scheme used is: a kind of bolt assembly with locating function, comprises bolt, it is characterized in that: further comprising the abutment sleeve sliding and be nested with on the screw rod of bolt; Described abutment sleeve comprises sleeve body and is positioned at least three lobe barb thin-walleds of sleeve body 2.1 near head one end of bolt, and barb thin-walled circumference distributes and becomes stepped shape with sleeve body, and the free end of barb thin-walled is provided with guide structure; The head of described bolt is provided with flange part, and flange part is provided with the barb guiding groove coordinated with barb thin-walled.
When installing and using, first abutment sleeve is nested with on the bolt shank of bolt, then bolt is plugged on corresponding mounting hole and tightens just passable.Wherein, corresponding mounting hole on motor is countersunk screw holes, corresponding mounting hole on the countersunk head portion of the corresponding mounting hole on the outer cylinder of abutment sleeve body and motor and gearbox is interference fit, and the length of the outer cylinder of abutment sleeve body is less than the length sum of corresponding both the mounting holes on the countersunk head portion of the corresponding mounting hole on motor and gearbox.In bolt tightening process, first barb thin-walled free end enters barb guiding groove, and last barb thin-walled is bent to form barb at barb guiding groove to the screw part of bolt, and this barb will pull out corresponding mounting hole when splitting gearbox and motor abutment sleeve.General often pair of motor and gearbox arrange two bolt assembly assembly departments to described band locating function.Compared with carrying out fit prior art of installing with the orientation type of employing cylindrical positioning pins, easily, not easily there is defective mounting in the connection of gearbox of the present invention and motor, and structure is simple, and dismounting easily.
As preferably, described barb guiding groove comprises the annular recess that the transverse section being positioned at flange part is semicircle and the undergauge section be positioned on the screw rod of bolt.This preferred version, structure is simple, and manufacturing is easy.
As preferably, the length of described undergauge section is 1.5 times of half circular diameter of the transverse section of described annular recess to 2 times, and diameter is the path of the screw thread of the screw rod of bolt.This preferred version, intensity is high, and functional reliability is high.
As preferably, described guide structure is rounded corner.This preferred version, rational in infrastructure, easy processing.
As preferably, the wall thickness of barb thin-walled equals 1/3rd of the wall thickness of sleeve body.Preferred further, long more than 2 times of equaling half circular diameter of the transverse section of described annular recess of wall of barb thin-walled.
In sum, the beneficial effect that the present invention brings is: compared with carrying out fit prior art of installing with the orientation type of employing cylindrical positioning pins, in the present invention, the housing of gearbox and motor decreases the processing in cylindrical positioning pins hole, reduce the difficulty of processing of the housing of gearbox and motor, easily, not easily there is defective mounting in the location of the connection of gearbox and motor, the connecting installation structure of gearbox and motor is simple, reliable operation, dismounting are easy.
Accompanying drawing explanation
Fig. 1 is a kind of structure cross-sectional schematic of the present invention;
Fig. 2 is using state schematic diagram of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.
As shown in Figure 1, the present invention includes bolt 1 and slide and be nested with the abutment sleeve 2 on the screw rod of bolt 1; Described abutment sleeve 2 comprises sleeve body 2.1 and is positioned at least three lobe barb thin-walleds 2.2 of sleeve body 2.1 near head one end of bolt 1, barb thin-walled 2.2 circumference distribution and with sleeve body 2.1 one-tenth stepped shape, the free end of barb thin-walled 2.2 is provided with guide structure; The head of described bolt 1 is provided with flange part 1.1, and flange part 1.1 is provided with the barb guiding groove 1.2 coordinated with barb thin-walled 2.2.
As preferably, the lobe number of the present embodiment barb thin-walled 2.2 is pintongs, described barb guiding groove 1.2 comprises the annular recess that the transverse section being positioned at flange part 1.1 is semicircle and the undergauge section 1.2.1 be positioned on the screw rod of bolt 1, wherein the center of circle of the semicircle of the transverse section of annular recess is preferably located in the cylndrical surface, place, large footpath of the screw thread on the screw rod of bolt 1 with on the crossing circle of the end face of screw rod one end near bolt 1 of flange part 1.1, this half diameter of a circle is the large footpath of the screw thread of bolt 1 and the difference of path, and this half diameter of a circle is greater than the twice of barb thin-walled 2.2 wall thickness; 1.5 times to 2 times of half circular diameter that the length [distance namely between undergauge section 1.2.1 round place crossing with the screw rod of bolt 1 plane and the free end face of flange part 1.1] of described undergauge section 1.2.1 is the transverse section of described annular recess, the present embodiment is 1.8 times.
As preferably, described guide structure system chamfering structure can be 1 0chamfering, also can be rounded corner, elliptic arc chamfering or other camber line chamfering, the present embodiment be preferably rounded corner, has easy to process, the advantage of reliable operation.
As preferably, the wall thickness of barb thin-walled 2.2 equals 1/3rd of the wall thickness of sleeve body 2.1, long more than 2 times of equaling half circular diameter of the transverse section of described annular recess of wall of barb thin-walled 2.2, long 2.5 times of equaling half circular diameter of the transverse section of described annular recess of wall of the present embodiment barb thin-walled 2.2.
As shown in Figure 2, when installing and using, first abutment sleeve 2 is nested with on the bolt shank of bolt 1, then bolt 1 is plugged on corresponding mounting hole and tightens just passable.Wherein, corresponding mounting hole on motor 4 is countersunk screw holes, corresponding mounting hole on the countersunk head portion of the corresponding mounting hole on the outer cylinder of abutment sleeve body 2.1 and motor 4 and gearbox 3 is interference fit, and the length of the outer cylinder of abutment sleeve body 2.1 is less than the length sum of corresponding both the mounting holes on the countersunk head portion of the corresponding mounting hole on motor 4 and gearbox 3.In bolt tightening process, first barb thin-walled 2.2 free end enters barb guiding groove 1.2, last barb thin-walled 2.2 is bent to form barb to the screw part of bolt 1 under the guiding of barb guiding groove 1.2, and this barb will pull out corresponding mounting hole when splitting gearbox and motor abutment sleeve.General often pair of motor and gearbox arrange two bolt assembly assembly departments to described band locating function.The beneficial effect that the present invention brings is: compared with carrying out fit prior art of installing with the orientation type of employing cylindrical positioning pins, in the present invention, the housing of gearbox and motor decreases the processing in cylindrical positioning pins hole, reduce the difficulty of processing of the housing of gearbox and motor, easily, not easily there is defective mounting in the location of the connection of gearbox and motor, the connecting installation structure of gearbox and motor is simple, reliable operation, dismounting are easy.
The specific embodiment of the above is only the present invention's preferably mode of execution, not limits specific embodiment of the invention scope with this.The equivalence change that all shapes according to the present invention, structure are done ought to all be included in protection scope of the present invention.

Claims (5)

1. the bolt assembly with locating function, comprises bolt (1), it is characterized in that: further comprising slip and is nested with the abutment sleeve (2) on the screw rod of bolt (1); Described abutment sleeve (2) comprises sleeve body (2.1) and is positioned at least three lobe barb thin-walleds (2.2) of sleeve body (2.1) near head one end of bolt (1), barb thin-walled (2.2) circumference distributes and becomes stepped shape with sleeve body (2.1), and the free end of barb thin-walled (2.1) is provided with guide structure; The head of described bolt (1) is provided with flange part (1.1), and flange part (1.1) is provided with the barb guiding groove (1.2) coordinated with barb thin-walled (2.1) ,described barb guiding groove (1.2) comprises the annular recess that the transverse section being positioned at flange part (1.1) is semicircle and the undergauge section (1.2.1) be positioned on the screw rod of bolt (1), and the diameter of described undergauge section (1.2.1) is the path of the screw thread of the screw rod of bolt (1).
2. the bolt assembly of band locating function according to claim 1, is characterized in that: the length of described undergauge section (1.2.1) is 1.5 times of half circular diameter of the transverse section of described annular recess to 2 times.
3. the bolt assembly of band locating function according to claim 1 and 2, is characterized in that: described guide structure is rounded corner.
4. the bolt assembly of band locating function according to claim 1 and 2, is characterized in that: the wall thickness of barb thin-walled (2.2) equals 1/3rd of the wall thickness of sleeve body (2.1).
5. the bolt assembly of band locating function according to claim 1 and 2, is characterized in that: long more than 2 times of equaling half circular diameter of the transverse section of described annular recess of wall of barb thin-walled (2.2).
CN201310483489.8A 2013-10-15 2013-10-15 With the bolt assembly of locating function Expired - Fee Related CN103671397B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201310483489.8A CN103671397B (en) 2013-10-15 2013-10-15 With the bolt assembly of locating function

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CN103671397A CN103671397A (en) 2014-03-26
CN103671397B true CN103671397B (en) 2015-12-09

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726553A (en) * 1971-07-09 1973-04-10 Huck Mfg Co Two-part pull type positive lock fasteners
CN201486976U (en) * 2009-07-23 2010-05-26 中国航空工业第六一八研究所 High precision repetitive installation positioning mechanism
CN202597388U (en) * 2012-05-18 2012-12-12 华锐风电科技(集团)股份有限公司 Connecting component for connecting first part and second part and wind generating set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60133209U (en) * 1984-02-15 1985-09-05 若井産業株式会社 nail

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726553A (en) * 1971-07-09 1973-04-10 Huck Mfg Co Two-part pull type positive lock fasteners
CN201486976U (en) * 2009-07-23 2010-05-26 中国航空工业第六一八研究所 High precision repetitive installation positioning mechanism
CN202597388U (en) * 2012-05-18 2012-12-12 华锐风电科技(集团)股份有限公司 Connecting component for connecting first part and second part and wind generating set

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Owner name: JINAN GEELY AUTO SPARE PARTS CO., LTD. HUNAN LUOYO

Free format text: FORMER OWNER: ZHEJIANG GEELY LUOYOU ENGINE CO., LTD. JINAN GEELY AUTO SPARE PARTS CO., LTD. HUNAN LUOYOU ENGINE PARTS CO., LTD. SHANDONG GEELY TRANSMISSION CO., LTD. NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION CO., LTD. HUNAN JISHENG INTERNAT POWER TRANSMISSION SYSTEM CO., LTD.

Effective date: 20141011

Owner name: ZHEJIANG GEELY LUOYOU ENGINE CO., LTD.

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Patentee after: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd.

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Patentee after: HUNAN LUOYOU ENGINE PARTS Co.,Ltd.

Patentee after: NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION Co.,Ltd.

Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd.

Address before: 315800 Zhejiang city of Ningbo province Beilun xinqie street Mt. Hengshan Road No. 1528

Patentee before: ZHEJIANG GEELY LUOYOU ENGINE Co.,Ltd.

Patentee before: JI'NAN GEELY AUTO PARTS Co.,Ltd.

Patentee before: HUNAN LUOYOU ENGINE PARTS Co.,Ltd.

Patentee before: SHANDONG JILI TRANSMISSION Co.,Ltd.

Patentee before: NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION Co.,Ltd.

Patentee before: HUNAN JISHENG INTERNATIONAL POWER TRANSMISSION SYSTEM Co.,Ltd.

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Patentee after: ZHEJIANG GEELY POWER ASSEMBLY Co.,Ltd.

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