CN204045118U - A kind of cam follower characteristics of motion and contour generating instrument - Google Patents
A kind of cam follower characteristics of motion and contour generating instrument Download PDFInfo
- Publication number
- CN204045118U CN204045118U CN201420419060.2U CN201420419060U CN204045118U CN 204045118 U CN204045118 U CN 204045118U CN 201420419060 U CN201420419060 U CN 201420419060U CN 204045118 U CN204045118 U CN 204045118U
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- side plate
- cam
- cam follower
- shaft
- paintbrush
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Abstract
The utility model discloses a kind of cam follower characteristics of motion and contour generating instrument, comprise horizontally disposed base plate, and be arranged at the gearing above base plate; Gearing is provided with cam, disk and outline line paintbrush bar, paintbrush is arranged on the tip of outline line paintbrush bar; The input end of gearing is connected with power source by the first side plate, and band moving cam and disk in the vertical direction rotate, and driven wheel profile paintbrush bar moves up and down simultaneously, enables paintbrush on the disk rotated, draw the outline line of cam.The utility model solve plotting machine effectively combine with mechanical teaching aid together with problem, cleverly by mechanical transmission mechanisms such as handwheel, axle, gears, utilize the principle of relative motion, by the motion of paper tape, draw out the characteristics of motion of push rod, be synchronized with the movement by plectane, the plectane scraps of paper draw cam profile.Show by experiment, this equipment working stability, dependable performance, functional realiey are respond well.
Description
Technical field
The utility model belongs to cam teaching aid technical field, is specifically related to a kind of cam follower characteristics of motion and contour generating instrument.
Background technology
At present, for the contour curve of the not high various plane cams of accuracy requirement, as long as when the characteristics of motion of driven member is selected and after making displacement line chart accordingly, according to reversal process principle, use graphing method all can design, the some problem that 51 phases in 2208 " machinery " Chen Yongning graphing method design cam profile curve should be noted simple and effectively.The mechanical teaching aid that current colleges and universities generally use, of a great variety, but few about the mechanical teaching aid of cam profile and this type of pushrod movement rule, student well can not understand the characteristics of motion about cam and push rod.
Utility model content
The purpose of this utility model is to solve the problem, provide a kind of cam follower characteristics of motion and contour generating instrument, problem together with this instrument solution plotting machine effectively combines with mechanical teaching aid, cleverly by mechanical transmission mechanisms such as handwheel, axle, gears, utilize the principle of relative motion, by the motion of paper tape, draw out the characteristics of motion of push rod, be synchronized with the movement by plectane, the plectane scraps of paper draw cam profile.Show by experiment, this equipment working stability, dependable performance, functional realiey are respond well.
To achieve these goals, the technical scheme that the utility model adopts is: comprise horizontally disposed base plate, and is arranged at the gearing above base plate; Base plate is vertically provided with the first side plate and the second side plate, the first side plate and the second side plate are oppositely arranged, and gearing is installed between the first side plate and the second side plate; The outside of the first side plate connects power source; Gearing is provided with cam, disk and outline line paintbrush bar, paintbrush is arranged on the tip of outline line paintbrush bar; The input end of gearing is connected with power source by the first side plate, and band moving cam and disk in the vertical direction rotate, and the rotating band driving wheel profile paintbrush bar of cam moves up and down, and enables paintbrush on the disk rotated, draw the outline line of cam.
Described gearing comprises two ends and is separately fixed at fixed beam on the first side plate and the second side plate, for cams mounted camshaft, for installing the disc shaft of disk and the push rod shaft for installation outline line drawing penholder; Camshaft and disc shaft are positioned at immediately below fixed beam, and are oppositely arranged and are positioned in same level; One end of camshaft is arranged on the first side plate, and is connected with power source, and the other end is connected with fixed beam by the first oscillating bearing; Cam suit and between the first side plate and the first oscillating bearing; One end of disc shaft is arranged on the second side plate, and the other end is connected with fixed beam by second joint bearing; Disk is fixed on the part that disc shaft stretches out second joint bearing; The top of fixed beam is provided with push rod shaft, and position corresponding with cam in push rod shaft is provided with cam follower, and one end of cam follower is fixedly connected with push rod shaft, and the other end is provided with the ball that can reduce wear, and with cam close contact; The upper end of outline line paintbrush bar is fixed on cam follower, and the paintbrush being arranged on its tip is positioned at the surface of disk; Push rod shaft also offers two to pass through, in two through holes, first connecting rod and second connecting rod are set respectively, and the bottom of first connecting rod and second connecting rod is all fixed on fixed beam.
Described fixed beam and first connecting rod and second connecting rod are all threaded connection.
Described push rod shaft and cam follower and outline line paintbrush bar are all threaded connection.
Described power source adopts as the motor in electronic source or the handle as manual source.
Described handle is connected with the end winding support of camshaft through the first side plate.
Between the first described side plate and the second side plate, straight bevel gear major axis is also installed; Camshaft is provided with the first cylindrical gear, disc shaft is provided with the second cylindrical gear, straight bevel gear major axis and camshaft and disc shaft are positioned in same level, position corresponding with the first cylindrical gear and the second cylindrical gear on straight bevel gear major axis is respectively arranged with three cylindrical gear and the 4th cylindrical gear, and the first cylindrical gear is meshed with three cylindrical gear, the second cylindrical gear is meshed with the 4th cylindrical gear; One end of straight bevel gear major axis is arranged on the inner side of the first side plate, and the other end is arranged on the second side plate; Second side plate is provided with spool shaft, and spool shaft is vertically installed, and bottom is provided with the first bevel gear, and straight bevel gear major axis is set with the second bevel gear driving spool shaft to rotate that to be meshed with the first bevel gear, the second bevel gear is positioned at the inner side of the second side plate.
Described camshaft is arranged on the first side plate by the first rolling bearing units being arranged at the first side plate interior sides; Disc shaft is arranged on the second side plate by the second rolling bearing units being arranged at the second side plate interior sides; One end of straight bevel gear major axis is arranged on the first side plate by the 3rd rolling bearing units being arranged at the first side plate interior sides, and the other end is arranged on the second side plate by the 4th rolling bearing units be arranged at outside the second side plate.
Described spool shaft is embedded in the square groove that the second side plate is offered, and the top of spool shaft is arranged on the top of the second side plate square groove.
Described cam, disk, four cylindrical gears and the axial of two bevel gears are fixed by the shaft shoulder and beam barrel, and circumference is fixed by key.
Compared with prior art, the utility model has following beneficial effect:
1. the utility model cam follower characteristics of motion and contour generating instrument use the principle of reversion to realize reversion relatively, gyration and the paper tape of cam move horizontally and synchronously carry out, achieve four bearing synchronous axial system, and then realize curve generation, cam profile and pushrod movement rule can be made to draw simultaneously.
2 the utility model cam follower characteristics of motion and contour generating instrument employ spur gear and bevel gear, and the motion state of this device can be made clear and intuitive, convenient observation and understanding.
3 the utility model cam follower characteristics of motion and contour generating instrument small volume, structure is simple, makes cost low, is easy to promote.
The cam follower bottom of 4 the utility model cam follower characteristics of motion and contour generating instrument adopts the ball that can reduce wear, thus can improve the serviceable life of cam follower.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is rear view of the present utility model;
Fig. 3 is side view of the present utility model;
Fig. 4 is vertical view of the present utility model.
Wherein, 1 is base plate; 2 is the first side plate; 3 is the second side plate; 4 is handle; 5 is camshaft; 6 is the first rolling bearing units; 7 is the second rolling bearing units; 8 is the first oscillating bearing; 9 is second joint bearing; 10 is fixed beam; 11 is straight bevel gear major axis; 12 is the first cylindrical gear; 13 is the second cylindrical gear; 14 is three cylindrical gear; 15 is the 4th cylindrical gear; 16 is cam; 17 is disk; 18 is disc shaft; 19 is the first bevel gear; 20 is the second bevel gear; 21 is spool shaft; 22 is push rod shaft; 23 is first connecting rod; 24 is second connecting rod; 25 is cam follower; 26 is outline line paintbrush bar; 27 is the 3rd rolling bearing units; 28 is the 4th rolling bearing units.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1 to Fig. 4, the first side plate 2 and the second side plate 3 that the utility model comprises base plate 1 and is installed on base plate 1, base plate 1 and biside plate are that bolt is connected, handle 4 is connected as the drive unit of whole mechanism through the first side plate 2 with camshaft 5, camshaft 5 one end the first rolling bearing units 6 are fixed on the first side plate 2, the other end the first oscillating bearing 8 is connected on fixed beam 10, camshaft 5 and straight bevel gear major axis 11 first cylindrical gear 12 and three cylindrical gear 13 engaged transmission, cam 16, disk 17 and cogged axis are all fixed with the shaft shoulder and sleeve, circumference all adopts key to fix.Straight bevel gear major axis 11 two ends are connected with biside plate with the 4th rolling bearing units 28 with the 3rd rolling bearing units 27 respectively, the 4th cylindrical gear 15 on straight bevel gear major axis 11 is meshed with the three cylindrical gear 14 on disc shaft 18, disc shaft 18 one end the second rolling bearing units 7 are connected with the second side plate 3, the other end is ined succession disk 17, and centre second joint bearing 9 is connected on fixed beam 10.First bevel gear 19 engaged transmission bottom the second bevel gear 20 on straight bevel gear major axis 11 and spool shaft 21, two ends copper cap is put in the second side plate 3.Push rod shaft 22 there are four bars be respectively first connecting rod 23, second connecting rod 24, cam follower 25, outline line paintbrush bar 26.First connecting rod 23 and second connecting rod 24 lower end are with being threaded on fixed beam 10, upper end is mainly used in the fixing push rod shaft 22 in left and right through push rod shaft 22, cam follower 25 upper end screw thread is connected in push rod shaft 22 upper and lower side and contacts with cam 16, outline line paintbrush bar 26 upper end is with push rod shaft 22 with being threaded, and lower end connects paintbrush.
Principle of the present utility model:
Draw the method for cam profile curve with reference to graphical method on mechanical principle teaching material, the design of cam profile turns to composition primarily of the pattern of cam structure, basic size, pushrod movement rule and cam.First determine cam pattern basic size and turn to, then utilizing the characteristics of motion of the push rod of generation to generate the outline line of cam fortune.The utility model general structure is primarily of propulsion system, and gearing, coupling arrangement, plotting unit four Part is formed.
1. propulsion system
As shown in figures 1 and 3, the utility model, by handle drives handle, drives and whole device is got into smooth, realize synchronization.
2. gearing
As shown in Figure 2 and Figure 4, the utility model is by hand-drive handle strip moving cam axle, cam axle band moving cam and the first cylindrical gear rotate, first cylindrical gear engages three cylindrical gear driven straight bevel gear major axis and rotates, the 4th cylindrical gear on straight bevel gear major axis engages with the second cylindrical gear and drives disc shaft to rotate, and disc shaft driver plate rotates.Straight bevel gear major axis band dynamic bevel gear rotates and then drives spool shaft to rotate, and spool shaft rotates the mapping of scrolling paper tape.The to-and-fro movement of cam rotating drive cam follower thus push rod shaft is moved up and down thus drives paintbrush to drive to draw.
3. coupling arrangement
As depicted in figs. 1 and 2, the utility model first side plate 2 is fixedly connected with base plate with bolt with the second side plate 3.Handle is connected with camshaft bolt, camshaft one end rolling bearing units are connected with the first side plate, other end oscillating bearing is connected with fixed beam, straight bevel gear major axis two ends are connected with the first side plate 2 and the second side plate 3 with rolling bearing units respectively, disc shaft one end rolling bearing units are connected with the second side plate, other end oscillating bearing is connected on stationary shaft, and spool shaft two ends copper cap is set in the second side plate.Fixed beam is contained in two plates, first connecting rod, second connecting rod and fixed beam with being threaded, cam follower and outline line paintbrush bar with push rod shaft with being threaded.
4. plotting unit
In the utility model, paintbrush is contained in push rod shaft left end respectively and outline line paintbrush bar is most advanced and sophisticated.Cam rotating band moving cam bar moves up and down, thus drives push rod shaft to move up and down, thus paintbrush bar is moved up and down, and makes it on the disk rotated, draw cam profile.Push rod shaft simultaneously driven wheel profile paintbrush bar draws pushrod movement rule on the paper tape of horizontal uniform motion.
The design of cam profile turns to composition primarily of the pattern of cam structure, basic size, pushrod movement rule and cam.First determine cam pattern basic size and turn to, then utilizing the characteristics of motion of the push rod of generation to generate the outline line of cam fortune.
Utility model works process:
First drive cam axle by the uniform rotation of propulsion system handle, thus make the cam on camshaft, gear uniform rotation.Cam rotating drive cam follower pumps, thus makes push rod shaft to-and-fro movement.Gears meshing drives straight bevel gear major axis to rotate, and straight bevel gear major axis rotates and drives cylindrical gear on it respectively, and conical gear engages, and drives disc shaft and push rod shaft to rotate respectively.Disc shaft rotates and drives disk synchronous axial system, disk sticks circular paper, the scraps of paper also rotate with disk, when push rod shaft moves up and down, driven wheel profile paintbrush bar is up and down along with cam contour moves up and down, level is loaded onto and the paintbrush of the contact disk scraps of paper, along with disk rotational and moving up and down of paintbrush bar just depict the outline line of cam on the scraps of paper at outline line paintbrush bar tip.Have above a montant at the other end of the second side plate simultaneously and overlap paper tape reel, closely roll up tape loading above, the paper tape other end is attached in push rod shaft, push rod shaft is rotated and paper tape can be driven simultaneously at the uniform velocity to move to push rod shaft direction, load onto paintbrush at push rod shaft end and be close to paper tape, when push rod shaft pumps, drive paintbrush to move up and down, push rod shaft drives paper tape motion thus can draw out pushrod movement rule on paper tape.
Above content is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, within the protection domain all falling into the utility model claims.
Claims (10)
1. the cam follower characteristics of motion and a contour generating instrument, is characterized in that: comprise horizontally disposed base plate (1), and is arranged at the gearing of base plate (1) top; Base plate (1) is vertically provided with the first side plate (2) and the second side plate (3), first side plate (2) and the second side plate (3) are oppositely arranged, and gearing is installed between the first side plate (2) and the second side plate (3); The outside of the first side plate (2) connects power source; Gearing is provided with cam (16), disk (17) and outline line paintbrush bar (26), paintbrush is arranged on the tip of outline line paintbrush bar (26); The input end of gearing is connected with power source by the first side plate (2), band moving cam (16) and disk (17) in the vertical direction rotate, rotating band driving wheel profile paintbrush bar (26) of cam (16) moves up and down, and enables paintbrush on the disk (17) rotated, draw the outline line of cam (16).
2. the cam follower characteristics of motion according to claim 1 and contour generating instrument, is characterized in that: described gearing comprise two ends be separately fixed at fixed beam (10) on the first side plate (2) and the second side plate (3), for install cam (16) camshaft (5), for installing the disc shaft (18) of disk (17) and the push rod shaft (22) for installation outline line drawing penholder (26); Camshaft (5) and disc shaft (18) are positioned at immediately below fixed beam (10), and are oppositely arranged and are positioned in same level; One end of camshaft (5) is arranged on the first side plate (2), and is connected with power source, and the other end is connected with fixed beam (10) by the first oscillating bearing (8); Cam (16) suit and between the first side plate (2) and the first oscillating bearing (8); One end of disc shaft (18) is arranged on the second side plate (2), and the other end is connected with fixed beam (10) by second joint bearing (9); Disk (17) is fixed on the part that disc shaft (18) stretches out second joint bearing (9); The top of fixed beam (10) is provided with push rod shaft (22), the upper position corresponding with cam (16) is provided with cam follower (25) to push rod shaft (22), one end of cam follower (25) is fixedly connected with push rod shaft (22), the other end is provided with the ball that can reduce wear, and with cam (16) close contact; The upper end of outline line paintbrush bar (26) is fixed on cam follower (25), and the paintbrush being arranged on its tip is positioned at the surface of disk (17); Push rod shaft (22) also offers two pass through, first connecting rod (23) and second connecting rod (24) are set in two through holes respectively, and the bottom of first connecting rod (23) and second connecting rod (24) is all fixed on fixed beam (10).
3. the cam follower characteristics of motion according to claim 2 and contour generating instrument, is characterized in that: described fixed beam (10) is all threaded connection with first connecting rod (23) and second connecting rod (24).
4. the cam follower characteristics of motion according to claim 2 and contour generating instrument, is characterized in that: described push rod shaft (22) is all threaded connection with cam follower (25) and outline line paintbrush bar (26).
5. the cam follower characteristics of motion according to Claims 1-4 any one and contour generating instrument, is characterized in that: described power source adopts the motor as electronic source or the handle (4) as manual source.
6. the cam follower characteristics of motion according to claim 5 and contour generating instrument, is characterized in that: described handle (4) is connected through the end winding support of the first side plate (2) with camshaft (5).
7. the cam follower characteristics of motion according to Claims 1-4 any one and contour generating instrument, is characterized in that: be also provided with straight bevel gear major axis (11) between described the first side plate (2) and the second side plate (3), camshaft (5) is provided with the first cylindrical gear (12), disc shaft (18) is provided with the second cylindrical gear (13), straight bevel gear major axis (11) is positioned in same level with camshaft (5) and disc shaft (18), the upper position corresponding with the first cylindrical gear (12) and the second cylindrical gear (13) is respectively arranged with three cylindrical gear (14) and the 4th cylindrical gear (15) to straight bevel gear major axis (11), and the first cylindrical gear (12) is meshed with three cylindrical gear (14), second cylindrical gear (13) is meshed with the 4th cylindrical gear (15), one end of straight bevel gear major axis (11) is arranged on the inner side of the first side plate (2), and the other end is arranged on the second side plate (3), second side plate (3) is provided with spool shaft (21), spool shaft (21) is vertically installed, and bottom is provided with the first bevel gear (19), straight bevel gear major axis (11) is set with the second bevel gear (20) driving spool shaft (21) to rotate that to be meshed with the first bevel gear (19), the second bevel gear (20) is positioned at the inner side of the second side plate (3).
8. the cam follower characteristics of motion according to claim 7 and contour generating instrument, is characterized in that: described camshaft (5) is arranged on the first side plate (2) by the first rolling bearing units (6) being arranged at the first side plate (2) inner side; Disc shaft (17) is arranged on the second side plate (3) by the second rolling bearing units (7) being arranged at the second side plate (3) inner side; One end of straight bevel gear major axis (11) is arranged on the first side plate (2) by the 3rd rolling bearing units (27) being arranged at the first side plate (2) inner side, and the other end is arranged on the second side plate (3) by the 4th rolling bearing units (28) being arranged at the second side plate (3) outside.
9. the cam follower characteristics of motion according to claim 8 and contour generating instrument, it is characterized in that: described spool shaft (21) is embedded in the square groove that the second side plate (3) is offered, and the top of spool shaft (21) is arranged on the top of the second side plate (3) square groove.
10. the cam follower characteristics of motion according to claim 8 and contour generating instrument, it is characterized in that: described cam (18), disk (17), four cylindrical gears and the axial of two bevel gears are fixed by the shaft shoulder and beam barrel, and circumference is fixed by key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419060.2U CN204045118U (en) | 2014-07-28 | 2014-07-28 | A kind of cam follower characteristics of motion and contour generating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419060.2U CN204045118U (en) | 2014-07-28 | 2014-07-28 | A kind of cam follower characteristics of motion and contour generating instrument |
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| Publication Number | Publication Date |
|---|---|
| CN204045118U true CN204045118U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420419060.2U Expired - Fee Related CN204045118U (en) | 2014-07-28 | 2014-07-28 | A kind of cam follower characteristics of motion and contour generating instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN204045118U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700708A (en) * | 2015-03-26 | 2015-06-10 | 黄鉴昆 | Disc shaped cam teaching tool |
| CN111899627A (en) * | 2020-06-02 | 2020-11-06 | 浙大城市学院 | Multifunctional experimental teaching instrument of space cam mechanism |
| CN112634736A (en) * | 2021-01-19 | 2021-04-09 | 南昌工程学院 | Practical demonstration teaching aid for mechanical principle classroom teaching |
-
2014
- 2014-07-28 CN CN201420419060.2U patent/CN204045118U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700708A (en) * | 2015-03-26 | 2015-06-10 | 黄鉴昆 | Disc shaped cam teaching tool |
| CN111899627A (en) * | 2020-06-02 | 2020-11-06 | 浙大城市学院 | Multifunctional experimental teaching instrument of space cam mechanism |
| CN111899627B (en) * | 2020-06-02 | 2022-04-12 | 浙大城市学院 | Multifunctional experimental teaching instrument of space cam mechanism |
| CN112634736A (en) * | 2021-01-19 | 2021-04-09 | 南昌工程学院 | Practical demonstration teaching aid for mechanical principle classroom teaching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |