CA3021317C - Adjustable cam driving mechanism - Google Patents

Adjustable cam driving mechanism Download PDF

Info

Publication number
CA3021317C
CA3021317C CA3021317A CA3021317A CA3021317C CA 3021317 C CA3021317 C CA 3021317C CA 3021317 A CA3021317 A CA 3021317A CA 3021317 A CA3021317 A CA 3021317A CA 3021317 C CA3021317 C CA 3021317C
Authority
CA
Canada
Prior art keywords
gear
support frame
driving mechanism
cam driving
input
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
CA3021317A
Other languages
French (fr)
Other versions
CA3021317A1 (en
Inventor
Shiying LI
Wenlong Lan
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.)
Chongqing Rato Technology Co Ltd
Original Assignee
Chongqing Rato Technology 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 Chongqing Rato Technology Co Ltd filed Critical Chongqing Rato Technology Co Ltd
Publication of CA3021317A1 publication Critical patent/CA3021317A1/en
Application granted granted Critical
Publication of CA3021317C publication Critical patent/CA3021317C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L1/053—Camshafts overhead type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/06—Camshaft drives characterised by their transmission means the camshaft being driven by gear wheels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Gear Transmission (AREA)
  • Transmission Devices (AREA)

Abstract

The present invention discloses an adjustable cam driving mechanism which comprises a support frame, an input gear, an intermediate gear and an output gear. The input gear, the intermediate gear and the output gear are respectively arranged on the support frame. The intermediate gear is adjustably fixed on the support frame. The input gear and/or the output gear are/is adjustably fixed on the support frame. The adjustable cam driving mechanism of the present invention can adapt to engines of different displacement volumes.

Description

ADJUSTABLE CAM DRIVING MECHANISM
TECHNICAL FIELD
[0001] The present invention relates to the technical field of engines, and more .. particularly to an adjustable cam driving mechanism.
BACKGROUND
[0002] At present, the cam driving mechanism of an engine is usually matched with an engine of only one displacement volume. And the driving mechanism needs to be re-designed for an engine of a different displacement volume.
SUMMARY
[0003] The technical problem to be solved by the present invention is to provide an adjustable cam driving mechanism suitable for various displacement volumes.
[0004] To solve said problem, the present invention provides an adjustable cam driving mechanism comprising a support frame, an input gear, an intermediate gear and an output gear, wherein the input gear, the intermediate gear and the output gear are respectively arranged on the support frame, the intermediate gear is adjustably fixed on the support frame, and the input gear and/or the output gear are/is adjustably fixed on the support frame.
[0005] Further, the support frame has an intermediate adjustment hole in which the intermediate gear is arranged; the support frame further has an input adjustment hole and/or an output adjustment hole, the input gear is arranged in the input adjustment hole and the output gear is arranged in the output adjustment hole.
[0006] Further, the intermediate gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
[0007] Further, the input gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
[0008] Further, the output gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
[0009] Further, a linkage rod is arranged between the intermediate gear and the input gear, and/or another linkage rod is arranged between the intermediate gear and the output gear.
[0010] In the adjustable cam driving mechanism of the present invention, the input gear, the output gear and the intermediate gear are movably arranged on the support frame, so that the positions of the three gears on the support frame can be adjusted according to the requirements to .. change the vertical distance between the input and output gears, thereby adapting to engines of different displacement volumes.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Fig. 1 is a schematic structural diagram of an adjustable cam driving mechanism of the present invention.
[0012] Fig. 2 is a schematic diagram showing the internal structure of an adjustable cam driving mechanism of the present invention.
[0013] Fig. 3 is a schematic structural diagram of an adjustable cam driving mechanism according to another embodiment of the present invention.
[0014] Fig. 4 is a schematic structural diagram of an adjustable cam driving mechanism according to yet another embodiment of the present invention.
[0015] Fig. 51s a schematic structural diagram of an adjustable cam driving mechanism according to yet another embodiment of the present invention.
[0016] Fig. 6 is a schematic structural diagram of an adjustable cam driving mechanism according to yet another embodiment of the present invention.
DETAILED DESCRIPTION
[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] As shown in Fig. 1 and Fig. 2, the adjustable cam driving mechanism comprises a support frame 1, an input gear 2, an intermediate gear 4 and an output gear 3, wherein the input gear 2, the intermediate gear 4 and the output gear 3 are respectively arranged on the support frame 1, and both the intermediate gear 4 and the input gear 2 are adjustably fixed on the support frame 1. The input gear 2 is meshed with an output gear 6 of a crank shaft, and the output gear 3 is meshed with a gear 7 of a cam shaft.
[0019] Specifically, the support frame 1 has an intermediate adjustment hole 11 and an input adjustment hole 12. The intermediate gear 4 is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the intermediate adjustment hole 11 of the support frame 1 via a fastening nut. The input gear 2 is arranged on another fixing rod via another bearing, and the another fixing rod is fixed to the input adjustment hole 12 of the support frame 1 via another fastening nut. The output gear 3 is arranged on yet another fixing rod via yet another bearing, and the yet another fixing rod is fixed to the support frame 1. The support frame 1 includes two support plates. One sides of the two support plates extend toward each other to be connected integrally. Each support plate has a fixing hole for fixing with the engine.
Of course, in other embodiments, the intermediate adjustment hole 11 and the input adjustment hole 12 may be replaced with multiple holes with threads. In the present embodiment, the intermediate adjustment hole 11 is arcuate and is bent downwards.
[0020] When the vertical distance between the input gear 2 and the output gear 3 needs to be changed, the fastening nuts are loosened. Then, the intermediate gear 4 and the input gear 2 are moved and then fixed again by fastening the fastening nuts. Thus, the vertical distance between the input gear 2 and the output gear 3 is changed, so that engines of different displacement volumes can share the present invention. Using gears for transmission, vibration of the air distribution mechanism is alleviated, the engine performance is improved, and discharge of CO and HC is effectively reduced. Therefore, the present invention has environmental protection advantages.
[0021] Embodiment 2
[0022] As shown in Fig. 3, the present embodiment differs from Embodiment 1 in that a linkage rod 5 is arranged between the intermediate gear 4 and the input gear 2, and the linkage rod 5 is fitted over the fixing rod.
[0023] When adjustment is made, only the intermediate gear 4 needs to be moved, and the input gear 2 is driven to move. Thus, the adjustment is quick and convenient.
[0024] Embodiment 3
[0025] As shown in Fig. 4, the present embodiment differs from Embodiment 1 in that the support frame 1 has an intermediate adjustment hole 11 and an output adjustment hole 13, that the output gear 3 is arranged on a fixing rod via a bearing, that the fixing rod is fixed on the intermediate adjustment hole 11 of the support frame 1 via a fastening nut, that the input gear 2 is fixed on another fixing rod via another bearing, and that the another fixing rod is fixed on the support frame 1. It should be understood that a linkage rod 5 may be arranged between the intermediate gear 4 and the output gear 3. In this embodiment, the intermediate adjustment hole 11 is arcuate and is bent upwards.
[0026] Embodiment 4
[0027] As shown in Fig. 5, the present embodiment differs from Embodiment 1 in that the support frame 1 further has an output adjustment hole 13, that the output gear 3 is arranged on a fixing rod via a bearing, and that the fixing rod is fixed in the intermediate adjustment hole 11 of the support frame 1 via a fastening nut. It should be understood that linkage rods 5 may be arranged between the intermediate gear 4 and the input gear 2 and between the intermediate gear 4 and the output gear 3 (as shown in Fig. 6).
[0028] The above content just describes the embodiment of the present invention, and is thus not intended to limit the patent scope of the present invention. The equivalent structures, which are made by using the description and the content of the drawings of the present invention and are directly or indirectly applied to other related technical fields, shall fall within the patent protection scope of the present invention.

Claims (6)

1. An adjustable cam driving mechanism, comprising a support frame, an input gear, an intermediate gear and an output gear, wherein the input gear, the intermediate gear and the output gear are respectively arranged on the support frame, the intermediate gear is adjustably fixed on the support frame, and the input gear and/or the output gear are/is adjustably fixed on the support frame.
2. The adjustable cam driving mechanism according to claim 1, wherein the support frame has an intermediate adjustment hole in which the intermediate gear is arranged;
the support frame further has an input adjustment hole and/or an output adjustment hole, the input gear is arranged in the input adjustment hole and the output gear is arranged in the output adjustment hole.
3. The adjustable cam driving mechanism according to claim 1, wherein the intermediate gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
4. The adjustable cam driving mechanism according to claim 1, wherein the input gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
5. The adjustable cam driving mechanism according to claim 1, wherein the output gear is arranged on a fixing rod via a bearing, and the fixing rod is fixed to the support frame via a fastening nut.
6. The adjustable cam driving mechanism according to claim 1, wherein a linkage rod is arranged between the intermediate gear and the input gear, and/or another linkage rod is arranged between the intermediate gear and the output gear.
CA3021317A 2017-11-07 2018-10-17 Adjustable cam driving mechanism Expired - Fee Related CA3021317C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711082358.3 2017-11-07
CN201711082358.3A CN107725131A (en) 2017-11-07 2017-11-07 Adjustable type cam drive mechanism

Publications (2)

Publication Number Publication Date
CA3021317A1 CA3021317A1 (en) 2019-05-07
CA3021317C true CA3021317C (en) 2020-07-14

Family

ID=61222793

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3021317A Expired - Fee Related CA3021317C (en) 2017-11-07 2018-10-17 Adjustable cam driving mechanism

Country Status (5)

Country Link
US (1) US20190136722A1 (en)
JP (1) JP2019052761A (en)
CN (1) CN107725131A (en)
CA (1) CA3021317C (en)
FR (1) FR3073266B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111348221B (en) * 2020-05-25 2020-08-18 北京清航紫荆装备科技有限公司 Lifting test bed for crossed dual-rotor unmanned helicopter

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809481A (en) * 1928-06-20 1931-06-09 Fried Krupp Germaniawerft Ag Cam shaft drive for internal combustion engines
US1961524A (en) * 1930-05-31 1934-06-05 Cincinnati Milling Machine Co Milling machine
US2237466A (en) * 1939-06-01 1941-04-08 Gould & Eberhardt Support for adjustable change gear studs
US2436746A (en) * 1943-07-12 1948-02-24 Charles W Drought Selective gear reduction units
US2466968A (en) * 1946-10-14 1949-04-12 Goss Printing Press Co Ltd Drive for impression cylinders of matrix rollers
US2792713A (en) * 1954-05-13 1957-05-21 West Point Mfg Co Loom take-up assembly
DE2930856A1 (en) * 1979-07-30 1981-02-19 Hilti Ag DEVICE FOR DRILLING STONE
US3657940A (en) * 1970-11-19 1972-04-25 William S Wagner Adjustable roll drive
US4261198A (en) * 1979-06-01 1981-04-14 Moore James L Gear profile checking apparatus
JPH0619811Y2 (en) * 1986-12-06 1994-05-25 本田技研工業株式会社 Cassette type gear train
US4942777A (en) * 1989-03-13 1990-07-24 Fife Morton E Device for cyclically varying the phase relationship between two rotating shafts
JPH03294192A (en) * 1990-04-11 1991-12-25 Toyoda Mach Works Ltd Backrush removing device
US5113712A (en) * 1990-05-24 1992-05-19 Economou Demitri G Simple stepless variable transmission
JP2526308Y2 (en) * 1990-08-24 1997-02-19 株式会社アマダ Punch press
JP2501795Y2 (en) * 1990-11-19 1996-06-19 三菱自動車工業株式会社 Phase controller for power transmission gear
US5540112A (en) * 1992-05-26 1996-07-30 Caterpillar Inc. Backlash adjustment mechanism
JP2760753B2 (en) * 1994-09-14 1998-06-04 川崎重工業株式会社 Cassette type cam gear drive mechanism
US6109129A (en) * 1997-05-08 2000-08-29 Cummins Engine Company, Inc. Apparatus and method for adjusting a gear
US7367295B2 (en) * 2003-10-31 2008-05-06 Brp-Rotax Gmbh & Co. Kg Exhaust control valve for internal combustion engine
US7171939B1 (en) * 2005-09-30 2007-02-06 S&S Cycle, Inc. Integrated cam drive and oil pump assembly for motorcycle engines and the like
US20080121198A1 (en) * 2006-11-28 2008-05-29 George Ratz Stepless variable valve timing system
TWI412658B (en) * 2008-07-11 2013-10-21 Ching Feng Home Fashions Co Curtain lifting control device
US8567278B2 (en) * 2009-07-01 2013-10-29 Genesis Systems Group, Llc Zero backlash preload gears
DE102011079621B4 (en) * 2011-07-22 2015-04-30 Schaeffler Technologies Gmbh & Co. Kg Transmission with adjustment means for adjusting the game and method for adjusting the play of a transmission
CN202411619U (en) * 2011-12-06 2012-09-05 武汉大西洋连铸设备工程有限责任公司 Flame cutting device for large square round billet
DE102012009604A1 (en) * 2012-05-15 2013-11-21 Man Truck & Bus Ag Control drive for a valve-controlled internal combustion engine
JP5865223B2 (en) * 2012-09-27 2016-02-17 本田技研工業株式会社 Backlash adjustment device for cam drive gear mechanism
AT513151B1 (en) * 2013-04-23 2014-02-15 Steyr Motors Gmbh Internal combustion engine with speed controller
WO2014195632A1 (en) * 2013-06-06 2014-12-11 Snecma Accessory drive case for a turboprop
CA2962854C (en) * 2014-03-18 2021-08-24 Raja Ramanujam Rajendran Continuous variable transmission with uniform input-to-output ratio that is non-dependent on friction
CN104948671B (en) * 2015-07-03 2017-05-24 盐城百圣机械有限公司 Interval-adjustable transmission mechanism
CN106939803B (en) * 2017-03-06 2018-11-06 胡水净 without valve spring four-stroke engine
CN207363723U (en) * 2017-11-07 2018-05-15 重庆润通科技有限公司 Adjustable type cam driving mechanism

Also Published As

Publication number Publication date
JP2019052761A (en) 2019-04-04
CN107725131A (en) 2018-02-23
FR3073266A1 (en) 2019-05-10
CA3021317A1 (en) 2019-05-07
FR3073266B1 (en) 2021-07-30
US20190136722A1 (en) 2019-05-09

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Effective date: 20221017