CN106285940A - A kind of gasoline engine crank rotating speed signal disc - Google Patents

A kind of gasoline engine crank rotating speed signal disc Download PDF

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Publication number
CN106285940A
CN106285940A CN201610690776.XA CN201610690776A CN106285940A CN 106285940 A CN106285940 A CN 106285940A CN 201610690776 A CN201610690776 A CN 201610690776A CN 106285940 A CN106285940 A CN 106285940A
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CN
China
Prior art keywords
disk body
gasoline engine
rotating speed
speed signal
engine crank
Prior art date
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Application number
CN201610690776.XA
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Chinese (zh)
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CN106285940B (en
Inventor
薛东升
蒋继科
徐丽茹
吴先非
肖欣
伍建撰
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Chongqing Changan Automobile Co Ltd
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Chongqing Changan Automobile Co Ltd
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Priority to CN201610690776.XA priority Critical patent/CN106285940B/en
Publication of CN106285940A publication Critical patent/CN106285940A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/08Safety, indicating, or supervising devices

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The present invention relates to a kind of gasoline engine crank rotating speed signal disc, including disk body, it is provided with mounting-positioning holes in the centre of disk body, the circumference that disk body and mounting-positioning holes are concentric is provided with three non-uniform screw mounting holes, disk body is provided with speed of crankshaft signal acquisition structure;Circumference at described mounting-positioning holes is provided with three circular grooves equidistantly distributed, and is provided with dynamic balancing groove in the bottom of one circular groove.The present invention can solve the problem that the installation quality of fit in solving the existence of existing punching press flat board crankshaft rotation speed signal panel is low, and disk body poor rigidity, signal teeth is easily hit curved problem, and manufacturing procedure is many, the problem that manufacturing cost is high.

Description

A kind of gasoline engine crank rotating speed signal disc
Technical field
The present invention relates to automobile engine, be specifically related to a kind of gasoline engine crank rotating speed signal disc.
Background technology
Due to the development of engine electric spray technology, the fuel economy of gasoline engine improves, and noxious gas emission reduces.But want Making electric injection system normally work, ECU can be precisely controlled, it is necessary to by the accurate information of sensor acquisition to crankshaft operation state. In the prior art, gasoline engine gradually utilizes sensor acquisition to be contained in the position signalling of signal panels on bent axle, and signal panels are adopted mostly The rectangular teeth structure added by punching press slab construction and machine.
The former disk body 6 of existing crankshaft rotation speed signal panel is provided with former mounting-positioning holes 1, dynamic balancing hole 2, former hypodontia structure 3, former screw mounting hole 4 and original signal tooth 5, see Fig. 1.Mounting-positioning holes 1 is located on the axle journal of bent axle, plays assembling and location Effect.After installing screw-driving, former disk body 6 compresses crankshaft installed end face and forms assembly relation.Original signal tooth 5 and former hypodontia structure 3 rotate along crank up center with bent axle, and the working order of bent axle is inputed to crankshaft rotational speed sensor.Because hypodontia causes Unbalancing value rely on dynamic balancing hole 2 be balanced.The installation that existing punching press flat board crankshaft rotation speed signal panel exists coordinates Quality is low, disk body poor rigidity, and original signal tooth is easily hit the problems such as curved, and the rectangular teeth that machine adds, exist again and be difficult to processing, cost The shortcoming such as higher.
CN203337677U disclosed " a kind of crankshaft rotation speed signal panel ".This crankshaft rotation speed signal panel includes: disk body, its Including: circular bottom plate and the sidewall extended to side along circular bottom plate, the center of circular bottom plate offers interfix hole, in Between position and offer dowel hole, interfix hole and dowel hole outside hole as disk body and crankshaft vibration damper assembling " 0 " graduation position location division;Tach signal collection portion, comprising: the collection groove being disposed on disk body circumference and hypodontia Portion, and gathering the collection double wedge formed between groove.This crankshaft rotation speed signal panel uses and is assemblied in crankshaft vibration damper On forward type structure, and use on its disk body circumference laying groove double wedge interphase structure so that it is cutting speed of crankshaft sensing The device magnetic line of force, changes its magnetic flux, produces sinusoidal induced voltage proportional therewith by being wrapped in the coil of sensor internal Output is to ECU ECU, to improve signals collecting reliability.Certainly, this be art a kind of due to Attempt.
Summary of the invention
The present invention provides a kind of gasoline engine crank rotating speed signal disc, and it can solve the problem that in solving existing punching press flat board bent axle The installation quality of fit that rotating speed signal disc exists is low, and disk body poor rigidity, signal teeth is easily hit curved problem, and manufacturing procedure Many, that manufacturing cost is high problems.
A kind of gasoline engine crank rotating speed signal disc of the present invention, including disk body, is provided with peace in the centre of disk body Set a hole, the circumference that disk body and mounting-positioning holes are concentric is provided with three non-uniform screw mounting holes, disk body sets There is speed of crankshaft signal acquisition structure;Circumference at described mounting-positioning holes is provided with three circular grooves equidistantly distributed, It is provided with dynamic balancing groove in the bottom of one circular groove.
Further, described speed of crankshaft signal acquisition structure includes that the circumferential periphery being located at disk body is provided with flange, and this turns over Several signal teeth on limit and a hypodontia window;The top of several signal teeth described is connected, between adjacent signal teeth Form window.
Further, the edge at described three non-uniform screw mounting holes is respectively equipped with little convex flat platform.
Further, the circumferential edges at described disk body is provided with continuous print reinforcement.
Further, the height of the little convex flat platform at the edge of described screw mounting hole is 0.15mm to 0.25mm.
Further, the flange of described disk body is 90 ° with the card angle of disk body.
The invention have the advantages that
(1) owing to having three circular grooves at the periphery of the mounting-positioning holes at disk body center, mounting-positioning holes and bent axle are made Axle journal forms three sections of cooperations, thus at ensureing these three sections while quality of fit, it is possible to decrease the abrasion of drift, reduce The weight of signal panels.
(2) due to dynamic balancing groove and mounting-positioning holes and stamping-out molding of circular groove, decrease blank operation, carry High manufacturing efficiency.
(3) stamp out reinforcement due to disk body cylindrical side area, improve the rigidity of disk body, and improve collecting crankshaft The reliability of tach signal.
(4) stamp out 0.2mm(millimeter due to the bolt hole periphery of disk body Yu bent axle contact surface) left and right little convex flat platform, and Little convex flat table top is long-pending less, it is possible to well ensures flatness, improves the quality coordinated with bent axle.
(5) it is connected due to the end of signal teeth, forms window-like between adjacent signals tooth, be possible not only to strengthen whole disk body Rigidity, increase reliability, and be possible to prevent transport and assembling during because of collision cause signal teeth deformation.
(6) simple in construction, quality are little, can be one time punching molded, and low cost is easy for installation, it is adaptable to various gasoline engines..
Accompanying drawing explanation
Fig. 1 is the structural representation of existing crankshaft rotation speed signal panel;
Fig. 2 is the structural representation (axonometric drawing) of the present invention;
Fig. 3 is the rearview (axonometric drawing) of Fig. 2;
Fig. 4 is the partial sectional view of the present invention;
Fig. 5 is the schematic diagram that the present invention is arranged on bent axle;
Fig. 6 is the A-A sectional view of Fig. 5.
In figure: the former mounting-positioning holes of 1-, 2-dynamic balancing hole, 3-former hypodontia structure, the former screw mounting hole of 4-, 5-is former Signal teeth, the former disk body of 6-;
11-mounting-positioning holes, 12-dynamic balancing groove, 13-hypodontia structure, 14-screw mounting hole, 15-signal teeth, 16-dish Body, 17-reinforcement, 18-circular groove, 19-little convex flat platform, 20-disk body screw, 21-bent axle.
Detailed description of the invention
Below according to Figure of description, the invention will be further described:
Seeing Fig. 2, Fig. 3 and Fig. 4, described a kind of gasoline engine crank rotating speed signal disc, including disk body 16, at the central part of disk body Position be provided with mounting-positioning holes 11, the circumference that disk body and mounting-positioning holes are concentric is provided with three non-uniform (during in order to assemble prevent Mistake, after general assembling, edentulous site has certain angle requirement with bent axle) screw mounting hole 14, disk body is provided with bent axle and turns Velocity signal capturing structure, its prominent substantive distinguishing features is: the circumference at described mounting-positioning holes 11 is provided with three equidistant point The circular groove 18 of cloth, is provided with dynamic balancing groove 12 in the bottom of one circular groove.Circumference at mounting-positioning holes It is provided with three circular grooves equidistantly distributed, makes mounting-positioning holes form three sections with the axle journal of bent axle and coordinate, join to improve Close precision, the abrasion of drift can be reduced simultaneously, i.e. alleviate the weight of disk body.Dynamic balancing groove and mounting-positioning holes and circular groove Stamping-out molding, to reduce blank operation, improves and manufactures efficiency.
Described speed of crankshaft signal acquisition structure includes that the circumferential periphery being located at disk body 16 is provided with flange, on this flange Several signal teeth 15 and a hypodontia window 13;The top of several signal teeth 15 described is connected, between adjacent signal teeth Form window.So, it is possible not only to strengthen the rigidity of whole disk body, and is possible to prevent during transport and assembling because of collision The signal teeth deformation caused, it is ensured that collecting crankshaft tach signal is accurate.Hypodontia structure 13 cuts the crankshaft rotational speed sensor magnetic line of force Output induced voltage with remaining adopt signal teeth 15 cut the crankshaft rotational speed sensor magnetic line of force export induced voltage otherwise varied, The crank rotation number of turns is judged for ECU.ECU, by analyzing induced voltage signal, is translated into speed of crankshaft signal.
It is respectively equipped with little convex flat platform 19 at the edge of described three equidistant screw mounting holes 14.Due to little convex flat table top Long-pending less, can well ensure flatness, it is possible to increase with bent axle fit quality.
Circumferential edges at described disk body 16 is provided with continuous print reinforcement 17, to improve the rigidity of disk body.
The height of the little convex flat platform 19 at the edge of described screw mounting hole 14 is 0.15mm(millimeter) to 0.25mm(millimeter).
The flange of described disk body 16 and the card angle of disk body are 90 °.
Seeing Fig. 5 and Fig. 6, the mounting-positioning holes 11 of disk body 16 forms precision-fit, the three of disk body with the axle journal of bent axle 21 Individual little convex flat platform is corresponding with the installed surface of bent axle to be contacted, and urgent by three disk body screws 20.

Claims (6)

1. a gasoline engine crank rotating speed signal disc, including disk body (16), is provided with mounting-positioning holes in the centre of disk body (11), the circumference that disk body and mounting-positioning holes are concentric is provided with three non-uniform screw mounting holes (14), disk body sets There is speed of crankshaft signal acquisition structure, it is characterized in that: the circumference at described mounting-positioning holes (11) is provided with three and equidistantly distributes Circular groove (18), be provided with dynamic balancing groove (12) in the bottom of one circular groove.
Gasoline engine crank rotating speed signal disc the most according to claim 1, is characterized in that: described speed of crankshaft signals collecting Structure includes that the circumferential periphery being located at disk body (16) is provided with flange, several signal teeth (15) on this flange and a hypodontia window Mouth (13);The top of described several signal teeth (15) is connected, and forms window between adjacent signal teeth.
Gasoline engine crank rotating speed signal disc the most according to claim 1 and 2, is characterized in that: described three equidistant The edge of screw mounting hole (14) is respectively equipped with little convex flat platform (19).
Gasoline engine crank rotating speed signal disc the most according to claim 1 and 2, is characterized in that: at the circle of described disk body (16) Circumferential edges is provided with continuous print reinforcement (17).
Gasoline engine crank rotating speed signal disc the most according to claim 3, is characterized in that: the limit of described screw mounting hole (14) The height of the little convex flat platform (19) of edge is 0.15mm to 0.25mm.
Gasoline engine crank rotating speed signal disc the most according to claim 2, is characterized in that: the flange of described disk body (16) and dish The angle of body is 90 °.
CN201610690776.XA 2016-08-20 2016-08-20 A kind of gasoline engine crank rotating speed signal disc Active CN106285940B (en)

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Application Number Priority Date Filing Date Title
CN201610690776.XA CN106285940B (en) 2016-08-20 2016-08-20 A kind of gasoline engine crank rotating speed signal disc

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CN106285940A true CN106285940A (en) 2017-01-04
CN106285940B CN106285940B (en) 2018-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021001665A (en) * 2019-06-21 2021-01-07 本田技研工業株式会社 Crank shaft attachment structure of pulsar member

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031357A1 (en) * 1980-08-20 1982-04-08 Robert Bosch Gmbh, 7000 Stuttgart COMBINED INCREMENT AND REFERENCE BRAND RECOGNITION FOR A ROTATING SHAFT, IN PARTICULAR THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
EP0486088A2 (en) * 1990-11-16 1992-05-20 General Motors Corporation Apparatus for detecting crankshaft position
CN101550881A (en) * 2008-04-01 2009-10-07 力帆实业(集团)股份有限公司 Gasoline engine driving disc capable of transmitting crankshaft rotation signals
CN202048925U (en) * 2011-02-28 2011-11-23 广州汽车集团股份有限公司 Crankshaft rotating speed tooth ring
CN202631556U (en) * 2012-02-23 2012-12-26 湖北六和天轮机械有限公司 Target wheel of crankshaft speed sensor
JP2013136983A (en) * 2011-12-28 2013-07-11 Daihatsu Motor Co Ltd Angle sensor mounting structure for crankshaft
CN203114421U (en) * 2013-01-16 2013-08-07 安徽江淮汽车股份有限公司 Signal panel of automobile engine
CN103769469B (en) * 2014-01-15 2015-09-02 广西科技大学 A kind of press-processing method of crankshaft rotation speed signal panel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031357A1 (en) * 1980-08-20 1982-04-08 Robert Bosch Gmbh, 7000 Stuttgart COMBINED INCREMENT AND REFERENCE BRAND RECOGNITION FOR A ROTATING SHAFT, IN PARTICULAR THE CRANKSHAFT OF AN INTERNAL COMBUSTION ENGINE
EP0486088A2 (en) * 1990-11-16 1992-05-20 General Motors Corporation Apparatus for detecting crankshaft position
CN101550881A (en) * 2008-04-01 2009-10-07 力帆实业(集团)股份有限公司 Gasoline engine driving disc capable of transmitting crankshaft rotation signals
CN202048925U (en) * 2011-02-28 2011-11-23 广州汽车集团股份有限公司 Crankshaft rotating speed tooth ring
JP2013136983A (en) * 2011-12-28 2013-07-11 Daihatsu Motor Co Ltd Angle sensor mounting structure for crankshaft
CN202631556U (en) * 2012-02-23 2012-12-26 湖北六和天轮机械有限公司 Target wheel of crankshaft speed sensor
CN203114421U (en) * 2013-01-16 2013-08-07 安徽江淮汽车股份有限公司 Signal panel of automobile engine
CN103769469B (en) * 2014-01-15 2015-09-02 广西科技大学 A kind of press-processing method of crankshaft rotation speed signal panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021001665A (en) * 2019-06-21 2021-01-07 本田技研工業株式会社 Crank shaft attachment structure of pulsar member

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