CN108061137A - A kind of double curved rod balanced type cam drives - Google Patents
A kind of double curved rod balanced type cam drives Download PDFInfo
- Publication number
- CN108061137A CN108061137A CN201810017079.7A CN201810017079A CN108061137A CN 108061137 A CN108061137 A CN 108061137A CN 201810017079 A CN201810017079 A CN 201810017079A CN 108061137 A CN108061137 A CN 108061137A
- Authority
- CN
- China
- Prior art keywords
- cam
- curved rod
- follower link
- roller bearing
- balanced type
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
- F16H25/14—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation perpendicular to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0463—Grease lubrication; Drop-feed lubrication
- F16H57/0464—Grease lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/12—Arrangements for adjusting or for taking-up backlash not provided for elsewhere
- F16H2057/126—Self-adjusting during operation, e.g. by a spring
- F16H2057/127—Self-adjusting during operation, e.g. by a spring using springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
Abstract
The present invention relates to cam drive fields, refer in particular to a kind of double curved rod balanced type cam drives, including camshaft, first cam, second cam, first curved rod, second curved rod, follower link, the first cam and the second cam is front and rear side by side to be fixed on camshaft, first curved rod, second curved rod is located at the two sides of the first cam respectively, first curved rod, one end of second curved rod is all hinged with follower link, first curved rod, the other end of second curved rod is provided with roller bearing, first curved rod, it is connected between second curved rod by extension spring, first curved rod, the roller bearing of second curved rod is close to the side of the second cam, follower link roller bearing is also equipped in the follower link, the follower link roller bearing is close to the first cam outer side edges.After using the above program, running resistance can be effectively reduced, reduces operation noise and improves service life.
Description
Technical field
The present invention relates to cam drive fields, refer in particular to a kind of double curved rod balanced type cam drives.
Background technology
Cam drive is exactly the reciprocating motion that the rotary motion of cam is changed into driven member, on driven member reversely
One spring members is set in cam one side, the operating track that driven member follows cam can be made back and forth to run, typical situation
Appear in the cam drive for air intake valve and drain tap to be controlled to be turned on and off in combustion chambers of internal combustion engines；
The cam drive run using spring laminating type operationally, needs at least to implement once in each cycle of operation
To the operation that spring is compressed, and the compressed value of spring corresponds to height difference of the cam side from low spot lofty perch displacement,
Therefore the running resistance of the kind of drive is larger, while also noise is worn and generated to unavoidable generate；
Therefore, the present inventor makes further research this, develops a kind of double curved rod balanced type cam drives, this case
Thus generate.
The content of the invention
It is an object of the invention to provide a kind of double curved rod balanced type cam drives, can effectively reduce operation
Resistance reduces operation noise and improves service life.
To achieve these goals, technical scheme is as follows：
A kind of double curved rod balanced type cam drives connect including camshaft, the first cam, the second cam, the first arc
Bar, the second curved rod, follower link, the first cam and the second cam is front and rear side by side to be fixed on camshaft, described
First curved rod, the second curved rod are located at the two sides of the first cam, the first curved rod, the second curved rod respectively
One end is all hinged with follower link, and the first curved rod, the other end of the second curved rod are provided with roller bearing, and the first arc connects
It is connected between bar, the second curved rod by extension spring, first curved rod, the roller bearing of the second curved rod and
The side of two cams is close to, and follower link roller bearing is also equipped in the follower link, and follower link roller bearing is located at the first arc
Between the hinge joint of connecting rod, the second curved rod and follower link, the follower link roller bearing is close to the first cam outer side edges.
Further, at least one chamber is respectively arranged in the first cam and the second cam, is provided on camshaft
Cam cover, the cam cover close the chamber.
Further, at least one through hole is provided in first cam, which connects the chamber and the first cam
Side, be provided at least one through hole in second cam, which connects the side of the chamber and the second cam.
Further, the first cam and the second cam the both sides of assembly are provided with cam cover, the cam
The side of cover board is provided with the through hole for the chamber being connected to inside first cam and the second cam, and the through hole outer is provided with sealing
Screw.
Further, the outer shape of second cam according to by the first cam outer shape and follower link, first
Position corresponding to curved rod, the second curved rod is determined by way of simulating and calculating, when cam axle work and band
When dynamic first cam and the second cam rotates, the drawing of the extension spring between the first curved rod and the second curved rod is connected to
It stretches and remains in certain scope.
Further, the range of stretch value of the extension spring is between 0 ~ 5 centimetre.
After using the above program, compared with prior art, the present invention haing the following advantages：
When cam axle works and first cam and the second cam is driven to rotate, connected by follower link bearing, the first arc
The transmission of bar and the second curved rod, the running orbit that follower link follows the first cam realize reciprocating motion, and due to each
Roller bearing is under the action of extension spring, and the moment is all close to cam face, therefore will not generate gap, so as to avoid extra
Vibrations and abrasion；
By the balanced action of the second cam rotation, the stretching for connecting the extension spring of the first curved rod and the second curved rod is whole
It is maintained in smaller scope, effectively reduces the running resistance of transmission mechanism, improve transmission efficiency and ride comfort；
The lubricant grease of cam chamber interior can play lubricating action to first cam and the second cam outer, can improve machine
The service life of structure reduces operation noise, and reduces maintenance cost.
Description of the drawings
Fig. 1 is the double curved rod balanced type cam drive front-view schematic diagrams of the present invention.
Fig. 2 is the double curved rod balanced type cam drive perspective diagrams of the present invention.
Fig. 3 is the double curved rod balanced type cam drive cam part decomposition diagrams of the present invention.
Fig. 4 A Fig. 4 B Fig. 4 C Fig. 4 D transport the working condition that circles for the double curved rod balanced type cam drives of the present invention
Figure.
Label declaration
Camshaft 1, the first cam 2, the second cam 3, cam cover 4, follower link 5, follower link roller bearing 6, the first arc connect
Bar 7, the second curved rod 8, the first curved rod roller bearing 9, the second curved rod roller bearing 10, extension spring 11, chamber 12, cam
Through hole 13, cam cover through hole 14 seal screw 15.
Specific embodiment
With reference to a kind of double curved rod balanced type cam drives of 1 Fig. 2 of figure, including camshaft 1, the first cam 2, second
Cam 3, cam cover 4, follower link 5, follower link roller bearing 6, the first curved rod 7, the second curved rod 8, the first arc
Connecting rod roller bearing 9, the second curved rod roller bearing 10, the first cam 2 and the second cam 3 is front and rear side by side is fixed on camshaft 1, cam
Cover board 4 is separately positioned on the both sides for the assembly that the first cam 2 and the second cam 3 are formed, and follower link 5 is provided with driven company
Bar roller bearing 6, the first curved rod 7 and the second curved rod 8 are located at the two sides of the first cam 2, its one end and driven company respectively
Bar 5 is hinged, which is located at the other end point of 6 both sides of follower link roller bearing, the first curved rod 7 and the second curved rod 8
Axostylus axostyle is not fixed with, which puts down 1 row with camshaft, and the first curved rod roller bearing 9 and the second curved rod roller bearing 10 are set respectively
It puts on corresponding axostylus axostyle, is connected, and stretched by extension spring 11 between the first curved rod 7 and the second curved rod 8
Under the action of 11 pulling force of spring, the first curved rod roller bearing 9 and the side of the second curved rod roller bearing 10 and the second cam 3 are forced
It fits closely, the first curved rod 7 and the second curved rod 8 are in the first curved rod roller bearing 9 and the second curved rod roller bearing 10
Limitation under and 11 pulling force of extension spring under the action of, force the follower link roller bearing 6 being connected in follower link 5 and
The side of one cam 2 fits closely.
When 1 rotation work of camshaft, follower link 5 is in 6 and first curved rod 7 of follower link roller bearing and the second arc
Under the effect and limitation of connecting rod 8, it then follows the running orbit of the first cam 2, which is realized, to be moved back and forth, and in the other end of follower link 5
Realize kinetic energy output（The original intention of applicant is the high speed back and forth movement needed for sewing needle when solving embroidery machine sewing, is usually embroidered
When machine is run, camshaft speed is more than 1000PPM, and large-scale embroidery machine needs tens syringe needles to work at the same time, and in working environment
With the presence of a large amount of fiber dust and dust, applicant but according to its principle, the field is also not only used in）.
With reference to being respectively arranged with two chambers 12 in 3 first cam 2 of figure and the second cam 3, cam cover 4 is by 12 envelope of chamber
It closes, chamber 12 is set for placing lubricant grease, in the first cam there are two through hole 13, and through hole 13 connects chamber 12 and first convex
2 side is taken turns, is set in the second cam 3 there are two through hole 13, which connects the side of 12 and second cam 3 of chamber, when
When 1 rotation work of camshaft and the first cam 2 of drive and the rotation of the second cam 3, the lubricant grease in chamber 12 can be along through hole
The side of 13 to the first cam 2 or the second cam 3, plays lubricating action.
4 side of cam cover is provided with the through hole 14 for being connected to chamber 12, and 14 outer of through hole is provided with sealing screw 15, works as envelope
When mouth screw 15 is opened, the addition that can be used for being lubricated grease to chamber 12 operates.
The outer shape of second cam 3 is by the outer shape and follower link 5 of the first cam 2, the first curved rod 7,
Two curved rods 8 and position corresponding to hinge and roller bearing is connected thereto, is determined by way of simulating and calculating, when camshaft 1
When rotation work and the first cam 2 of drive and the rotation of the second cam 3, the stretching of extension spring 11 is remained at less than 5 centimetres
In the range of, as shown in Fig. 4 A Fig. 4 B Fig. 4 C Fig. 4 D, the first cam 2 and the second cam 3 are corresponding to four positions to rotate a circle
The changing value of extension spring 11 tensional state L1, L2, L3 and L4 be always in smaller scope so that the present embodiment is a kind of double
The running resistance of curved rod balanced type cam drive is smaller, improves transmission efficiency and ride comfort.
It above are only the specific embodiment of invention, while such as " upper and lower, left and right, centre " involved in all present invention
Word is only used as with reference to not absolute limit, all changes that unsubstantiality is carried out using the present invention should all belong to infringement invention and protect
Protect the behavior of scope.
Claims (6)
1. a kind of double curved rod balanced type cam drives, it is characterised in that：Including camshaft, the first cam, second convex
Wheel, the first curved rod, the second curved rod, follower link, the first cam and the second cam side by side it is front and rear be fixed on it is convex
On wheel shaft, first curved rod, the second curved rod respectively be located at the first cam two sides, the first curved rod,
One end of second curved rod is all hinged with follower link, and the first curved rod, the other end of the second curved rod are provided with rolling
Axis is connected between the first curved rod, the second curved rod by extension spring, first curved rod, the second arc
The roller bearing of connecting rod is close to the side of the second cam, and follower link roller bearing, follower link rolling are also equipped in the follower link
Axle position is between the hinge joint of the first curved rod, the second curved rod and follower link, the follower link roller bearing and first
Cam outer side edges are close to.
2. a kind of double curved rod balanced type cam drives according to claim 1, it is characterised in that：Described first
At least one chamber is respectively arranged in cam and the second cam, cam cover is provided on camshaft, the cam cover will
The chamber closing.
3. a kind of double curved rod balanced type cam drives according to claim 2, it is characterised in that：Described first
At least one through hole is provided in cam, which connects the side of the chamber and the first cam, is set in second cam
At least one through hole is equipped with, which connects the side of the chamber and the second cam.
4. a kind of double curved rod balanced type cam drives according to claim 1, it is characterised in that：Described first
Cam and the second cam the both sides of assembly are provided with cam cover, the side of the cam cover, which is provided with, is connected to first
The through hole of chamber inside cam and the second cam, the through hole outer are provided with sealing screw.
5. a kind of double curved rod balanced type cam drives according to claim 1, it is characterised in that：Described second
The outer shape of cam is according to by the outer shape and follower link of the first cam, the first curved rod, the second curved rod institute
Correspondence position is determined by way of simulating and calculating, when cam axle works and first cam and the second cam is driven to turn
When dynamic, the stretching for being connected to the extension spring between the first curved rod and the second curved rod remains at certain scope
It is interior.
6. a kind of double curved rod balanced type cam drives according to claim 5, it is characterised in that：The stretching
The range of stretch value of spring is between 0 ~ 5 centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017079.7A CN108061137B (en) | 2018-01-09 | 2018-01-09 | Double-arc-shaped connecting rod balanced cam transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810017079.7A CN108061137B (en) | 2018-01-09 | 2018-01-09 | Double-arc-shaped connecting rod balanced cam transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108061137A true CN108061137A (en) | 2018-05-22 |
| CN108061137B CN108061137B (en) | 2023-07-25 |
Family
ID=62141645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810017079.7A Active CN108061137B (en) | 2018-01-09 | 2018-01-09 | Double-arc-shaped connecting rod balanced cam transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108061137B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB551040A (en) * | 1941-12-16 | 1943-02-04 | Cotton Ltd W | Improvements in straight bar knitting machines |
| TW582460U (en) * | 2003-06-27 | 2004-04-01 | Ind Tech Res Inst | Conjugate cam type pick and place mechanism |
| JP2007075299A (en) * | 2005-09-13 | 2007-03-29 | Barudan Co Ltd | Sewing machine |
| US20110247449A1 (en) * | 2010-04-13 | 2011-10-13 | Dennis Parker | Cam Mechanism for Converting Constant Velocity Rotary Motion into a Constant Velocity Reciprocating Motion |
| CN103481656A (en) * | 2013-07-26 | 2014-01-01 | 北京印刷学院 | Moving platform driving device for die-cutting stamping machine |
| CN103726198A (en) * | 2013-12-27 | 2014-04-16 | 浙江理工大学 | Five-link double-cam driving mechanism for tuck-in selvage bearded needle |
| CN204608363U (en) * | 2015-05-14 | 2015-09-02 | 安徽省萧县徽星机械制造有限公司 | A kind of cam drive of sewing quilt machine |
-
2018
- 2018-01-09 CN CN201810017079.7A patent/CN108061137B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB551040A (en) * | 1941-12-16 | 1943-02-04 | Cotton Ltd W | Improvements in straight bar knitting machines |
| TW582460U (en) * | 2003-06-27 | 2004-04-01 | Ind Tech Res Inst | Conjugate cam type pick and place mechanism |
| JP2007075299A (en) * | 2005-09-13 | 2007-03-29 | Barudan Co Ltd | Sewing machine |
| US20110247449A1 (en) * | 2010-04-13 | 2011-10-13 | Dennis Parker | Cam Mechanism for Converting Constant Velocity Rotary Motion into a Constant Velocity Reciprocating Motion |
| CN103481656A (en) * | 2013-07-26 | 2014-01-01 | 北京印刷学院 | Moving platform driving device for die-cutting stamping machine |
| CN103726198A (en) * | 2013-12-27 | 2014-04-16 | 浙江理工大学 | Five-link double-cam driving mechanism for tuck-in selvage bearded needle |
| CN204608363U (en) * | 2015-05-14 | 2015-09-02 | 安徽省萧县徽星机械制造有限公司 | A kind of cam drive of sewing quilt machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108061137B (en) | 2023-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334749B (en) | A kind of anti-high-efficient impacting broken method for distinguishing and implement this method of high-efficient impacting is anti-to break other headstock | |
| CN202451701U (en) | Balance shaft device of horizontal engine crankshaft connecting rod | |
| CN207750460U (en) | A kind of double curved rod balanced type cam drives | |
| CN108061137A (en) | A kind of double curved rod balanced type cam drives | |
| CN205779551U (en) | A kind of reciprocating compressor | |
| CN107709732A (en) | Variable compression ratio internal combustion engine and its learning method | |
| CN2848898Y (en) | Cloth pulling device of industrial sewing machine | |
| CN208749918U (en) | The combination of motorcycle balancing axis | |
| CN207268294U (en) | A kind of cam drive | |
| CN207178846U (en) | Double shift fork double acting pneumatic actuators | |
| CN201096395Y (en) | Air conditioner panel switch device | |
| CN104481626B (en) | Valve mechanism for engine, engine with the same and vehicle | |
| CN102410074A (en) | Two-stroke engine | |
| CN2852723Y (en) | Cigarette separating and transferring device | |
| CN206771859U (en) | Air-supply arrangement for wind cooling refrigerator | |
| CN207931425U (en) | Cycle throttle assembly and two layers flow inner-outer circulation air-conditioning box | |
| CN205766223U (en) | A kind of robot hand mechanism | |
| CN107559399A (en) | A kind of cam drive | |
| CN208136506U (en) | The fast washer of high performance fabric | |
| CN107448667A (en) | Double shift fork double acting pneumatic actuators | |
| CN207943135U (en) | A kind of drive mechanism for wheel by Bevel Gear Transmission | |
| CN207920806U (en) | A kind of novel distribution reversing arrangement | |
| CN209943459U (en) | Box body transmission structure of high-speed needling machine | |
| CN205277809U (en) | Compressor pump body subassembly | |
| CN205533077U (en) | Multistage gas compressor's crank mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |