CN207068328U - A kind of manual cam profile curve drawing instrument - Google Patents
A kind of manual cam profile curve drawing instrument Download PDFInfo
- Publication number
- CN207068328U CN207068328U CN201720502235.XU CN201720502235U CN207068328U CN 207068328 U CN207068328 U CN 207068328U CN 201720502235 U CN201720502235 U CN 201720502235U CN 207068328 U CN207068328 U CN 207068328U
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- CN
- China
- Prior art keywords
- planet carrier
- fixed
- shaft bearing
- gear
- passes
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- 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
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Abstract
It the utility model is related to a kind of manual cam profile curve drawing instrument, crank is moved linearly by rocking arm band moving cam along driven feed rod or so, curve is determined so as to adjust offset distance, described central shaft top installation cam, bottom is fixed on horizontal positioned chassis by base bearing block, middle-end passes through planet carrier lid respectively, up carrier, descending carrier is connected with jackshaft, planet carrier lid is fixed in described jackshaft top by planet carrier shaft bearing, middle-end is fitted by rotational motion mechanism gear II and gear I, bottom is fixed on descending carrier by planet carrier shaft bearing, planet carrier lid is fixed in described gear shaft upper end by planet carrier shaft bearing, middle-end is fixed on descending carrier by planet carrier shaft bearing, bottom is placed on chassis by fixed mount.
Description
Technical field
Technical field of teaching instruments is the utility model is related to, more particularly to a kind of teaching for mechanical courses design is drilled
Show, allow student to be easier to understand the mechanism of cam motion.
Background technology
Cam movement mechanism conduct《Theory of mechanics》、《Machine Design》Deng the emphasis knowledge section of course, the more difficult reason of student
The relation between follower motion and cam profile curve is solved, as the demonstration for coordinating teaching aid in imparting knowledge to students can more improve classroom effect
Fruit.Current cam drawing teaching instrument uses reversal process mostly, if being done by describing to be fitted the contour curve of cam, profile
The accuracy of curve is relevant with the quantity of described point, and the method it is time-consuming it is more, efficiency is low, intensity is big.Understand for ease of student and remember
Recall, a kind of described manual cam profile curve drawing instrument can solve this problem easily.
Utility model content
The utility model provides a kind of manual cam profile curve drawing instrument, unlimited by hand crank institute quantification
Point, recycle gear between mutual fitting and rack gear, by convert rotational motion be polished rod linear motion,
So that it is determined that cam profile curve.Meanwhile the utility model can draw out the cam profile curve of any base radius, use
Scope is wider, has great importance to improving school instruction quality etc..
In order to solve the above-mentioned technical problem, the utility model proposes following technical scheme：A kind of manual cam profile curve
Drawing instrument, it includes crank, central shaft, jackshaft and the gear shaft placed vertically and horizontal positioned chassis, the crank
Moved linearly by rocking arm band moving cam along driven feed rod or so, cam is installed on the central shaft top, and bottom passes through datum axle
Bearing is fixed on horizontal positioned chassis, and middle-end is connected by planet carrier lid, up carrier, descending carrier with jackshaft respectively,
Planet carrier lid is fixed in the jackshaft top by planet carrier shaft bearing, and middle-end passes through rotational motion mechanism gear II and gear
I is fitted, and bottom is fixed on descending carrier by planet carrier shaft bearing, and the gear shaft upper end is fixed on by planet carrier shaft bearing
Planet carrier lid, middle-end are fixed in descending carrier by planet carrier shaft bearing, and bottom is placed on chassis by fixed mount.
The crank is fixed on the outside of rocking arm by M8 nuts, and the rocking arm is fixed on rocking arm sleeve by M8 nuts
Top, hexagon socket cap head screw, which is fixedly mounted, in the rocking arm sleeve middle-end prevents its movement, and bottom is by M12 nuts by cam
Fix, the driven feed rod of installation on the right side of the cam, Return spring is provided with by spring retainer outside the polished rod, right side passes through
Penholder fixed mount connecting pen, the pen right side connect cap by cross recess fillister head screw and determine frame lid, and bottom passes through movable plate
It is in contact with chart board.
The movable plate top is symmetrically installed linear bearing seat, passes through hexagonal M5 spiral shells in installation between bottom and planet carrier lid
Follow closely connecting positioning sleeve cylinder.
Planet carrier shaft bearing III, planet carrier shaft bearing are placed between the planet carrier lid and up carrier at equal intervals
II and planet carrier shaft bearing I.
The gear I tops installation center axle upper bush, bottom are symmetrically installed central shaft lower sleeve, under described central shaft
Sleeve bottom end is fixedly mounted on support by center shaft holder.
The rotational motion mechanism gear II engages with gear III, and described gear III engages with rack again, described
Rack right-hand member passes through M5 mode connects for screw chart boards, bottom installation rack frame.
Chart board fixed strip is installed in the chart board bottom, and chart board support is connected between chart board fixed strip and descending carrier
Frame.
The descending carrier top is equidistantly installed by planet carrier shaft bearing IV, planet carrier shaft bearing V and planet carrier shaft bearing
VI。
The utility model has the advantages that：
1st, a kind of manual cam profile curve drawing instrument of the present utility model, can be with using planetary gear train, fixed shaft gear train etc.
Change the physical dimensions such as driven member displacement curve, base radius, radius of roller, by the reciprocating motion of polished rod, by abstract motion
On chart board, the geometric locus on chart board is exactly driven member disc cam profile, its Parameter adjustable, presses close to teaching practice for reaction.
2nd, a kind of manual cam profile curve drawing instrument of the present utility model, simple in construction, easy to operate, student can parent
Automatic Freehandhand-drawing driven member displacement curve and cam profile curve, make student comparatively fast understand follower motion and cam contour
Relation between curve.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is lifting cutter device schematic diagram of the present utility model；
Fig. 3 is lifting another angle schematic diagram of cutter device of the present utility model；
Fig. 4 is saw cutting device schematic diagram of the present utility model.
Fig. 1 is a kind of stereogram of manual cam profile curve drawing instrument of the utility model.
Fig. 2 is a kind of stereogram of manual cam profile curve drawing instrument of the utility model.
Fig. 3 is the driven member close-up schematic view.
Fig. 4 is the central shaft, jackshaft and gear shaft position relationship close-up schematic view.
In figure：Crank 1, M8 nuts 2, rocking arm 3, rocking arm sleeve 4, hexagon socket cap head screw 5, M12 nuts 6, cam 7,
Linear bearing seat 8, feed rod 9, pen determine frame 10, cap determines frame lid 11, cross recess fillister head screw 12, movable plate 13, positioning
Sleeve 14, central shaft upper bush 15, Return spring 16, spring retainer 17, planet carrier shaft bearing I18, M5 screw 19, central shaft
20th, central shaft lower sleeve 21, center shaft holder 22, chart board 23, chart board fixed strip 24, rack 25, gear I26, chart board support
Frame 27, rack frame 28, M5 screws 29, planet carrier lid 30, up carrier 31, fixed mount 32, chassis 33, support 34, descending carrier
35th, base bearing block 36, gear shaft 37, jackshaft 38, pen 39, gear II40, gear III41, planet carrier shaft bearing II42, OK
Carrier bearing block III43, planet carrier shaft bearing IV44, planet carrier shaft bearing V45, planet carrier shaft bearing VI46, M8 nut 47.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
As shown in Fig. 1 ~ 4, a kind of manual cam profile curve drawing instrument, it includes crank 1, the central shaft placed vertically
20th, jackshaft 38 and gear shaft 37 and horizontal positioned chassis 33, described crank 1 is by Rocker arm 4 band moving cam 7 along driven
Feed rod 9 or so moves linearly, and determines curve so as to adjust offset distance, the described top of central shaft 20 installation cam 7, bottom passes through bottom
Seat bearing block 36 is fixed on horizontal positioned chassis 33, and middle-end passes through planet carrier lid 30, up carrier 31, descending carrier 35 respectively
It is connected with jackshaft 38, planet carrier lid 30 is fixed in the described top of jackshaft 38 by planet carrier shaft bearing 42, and middle-end passes through
Rotational motion mechanism gear II40 and gear I26 is fitted, and bottom is fixed on descending carrier 35 by planet carrier shaft bearing 45, described
The upper end of gear shaft 37 planet carrier lid 30 is fixed by planet carrier shaft bearing 43, middle-end is fixed on by planet carrier shaft bearing 44
Descending carrier 35, bottom are placed on chassis 33 by fixed mount 32.
Further, described crank 1 is fixed on the outside of rocking arm 3 by M8 nuts 2, and described rocking arm 3 passes through M8 spiral shells
Mother 47 is fixed on the top of rocking arm sleeve 4, and hexagon socket cap head screw 5, which is fixedly mounted, in the described middle-end of rocking arm sleeve 4 prevents it
Mobile, cam 7 is fixed by M12 nuts 6 in bottom, the described driven feed rod 9 of the right side of cam 7 installation, outside described polished rod 9
Return spring 16 is provided with by spring retainer 17, right side is logical by the connecting pen 39 of penholder fixed mount 10, the described right side of pen 39
Cross the connection cap of cross recess fillister head screw 12 and determine frame lid 11, bottom is in contact through movable plate 13 with chart board 23.
Further, the described top of movable plate 13 is symmetrically installed linear bearing seat 8, leads between bottom and planet carrier lid 30
Cross the connecting positioning sleeve cylinder 14 of hexagonal M5 screws 19 in installation.
Further, planet carrier shaft bearing is placed with equal intervals between described planet carrier lid 30 and up carrier 31
III43, planet carrier shaft bearing II42 and planet carrier shaft bearing I18.
Further, described gear I tops installation center axle upper bush 15, bottom is symmetrically installed central shaft lower sleeve
21, the described bottom of central shaft lower sleeve 21 is fixedly mounted on support 34 by center shaft holder 22.
Further, described rotational motion mechanism gear II40 engages with gear III41, and described gear III41 is again
Engaged with rack 25, the described right-hand member of rack 25 connects chart board 23, bottom installation rack frame 28 by M5 screws 29.
Further, the described bottom of chart board 23 installation chart board fixed strip 24, in chart board fixed strip 24 and descending carrier 31
Between be connected with drawing board support 27.
Further, planet carrier shaft bearing IV44, planet carrier shaft bearing are equidistantly installed in the described top of descending carrier 31
V45 and planet carrier shaft bearing VI46.
The course of work and operation principle of the present utility model：
The gear I on central shaft 20 is meshed with the gear II on right side jackshaft 38 by rotating crank 1, then with the right side
Gear III41 engagements on side gear axle 37, then band carry-over bar 25 are movable, at the same time make the Rocker arm 4 drive of upper end convex
Wheel 7, left and right rectilinear movement is done along driven feed rod 9, the track depicted on the place chart board 23 of pen 39 of the right-hand member of polished rod 9 is cam
Contour curve.The movement profiles of cam contour are drawn by fixed shaft gear train and rack pinion.
By above-mentioned description, those skilled in the art completely can be without departing from this item utility model technological thought
In the range of, various changes and amendments are carried out all within the scope of protection of the utility model.It is of the present utility model not most
Matters, belong to the common knowledge of those skilled in the art.
Claims (8)
- A kind of 1. manual cam profile curve drawing instrument, it is characterised in that：It includes the crank placed vertically（1）, central shaft （20）, jackshaft（38）And gear shaft（37）And horizontal positioned chassis（33）, the crank（1）Pass through rocking arm（4）Drive Cam（7）Along driven feed rod（9）Left and right moves linearly, the central shaft（20）Top is installed by cam（7）, bottom passes through datum axle Bearing（36）It is fixed on horizontal positioned chassis（33）, middle-end passes through planet carrier lid respectively（30）, up carrier（31）, lower planet Frame（35）With jackshaft（38）It is connected, the jackshaft（38）Top passes through planet carrier shaft bearing（42）Fixed planet carrier lid （30）, middle-end passes through rotational motion mechanism gear II（40）With gear I（26）Fitting, bottom passes through planet carrier shaft bearing（45）Gu It is scheduled on descending carrier（35）, the gear shaft（37）Upper end passes through planet carrier shaft bearing（43）Fixed planet carrier lid（30）, in End passes through planet carrier shaft bearing（44）It is fixed on descending carrier（35）On, bottom passes through fixed mount（32）It is placed on chassis（33） On.
- A kind of 2. manual cam profile curve drawing instrument according to claim 1, it is characterised in that：The crank（1）It is logical Cross M8 nuts（2）It is fixed on rocking arm（3）Outside, the rocking arm（3）Pass through M8 nuts（47）It is fixed on rocking arm sleeve（4）Top End, the rocking arm sleeve（4）Hexagon socket cap head screw is fixedly mounted in middle-end（5）Its movement is prevented, bottom passes through M12 nuts （6）By cam（7）It is fixed, the cam（7）Right side is installed by driven feed rod（9）, the polished rod（9）Outside passes through spring retainer （17）Return spring is installed（16）, right side passes through penholder fixed mount（10）Connecting pen（39）, the pen（39）Right side passes through ten Word groove fillister head screw（12）Connection cap determines frame lid（11）, bottom passes through movable plate（13）With chart board（23）It is in contact.
- A kind of 3. manual cam profile curve drawing instrument according to claim 2, it is characterised in that：The movable plate（13） Top is symmetrically installed linear bearing seat（8）, bottom and planet carrier lid（30）Between pass through hexagonal M5 screws in installation（19）Connection Abutment sleeve（14）.
- A kind of 4. manual cam profile curve drawing instrument according to claim 1, it is characterised in that：The planet carrier lid （30）With up carrier（31）Between be placed with planet carrier shaft bearing III at equal intervals（43）, planet carrier shaft bearing II（42）With Planet carrier shaft bearing I（18）.
- A kind of 5. manual cam profile curve drawing instrument according to claim 1, it is characterised in that：The gear I（26） Top installation center axle upper bush（15）, bottom is symmetrically installed central shaft lower sleeve（21）, described central shaft lower sleeve（21） Bottom passes through center shaft holder（22）It is fixedly mounted on support（34）.
- A kind of 6. manual cam profile curve drawing instrument according to claim 1, it is characterised in that：The rotary motion machine Structure gear II（40）With gear III（41）Engagement, described gear III（41）And and rack（25）Engagement, described rack （25）Right-hand member passes through M5 screws（29）Connect chart board（23）, bottom installation rack frame（28）.
- A kind of 7. manual cam profile curve drawing instrument according to claim 2, it is characterised in that：The chart board（23）Bottom End installation chart board fixed strip（24）, in chart board fixed strip（24）With descending carrier（31）Between be connected with drawing board support（27）.
- A kind of 8. manual cam profile curve drawing instrument according to claim 1, it is characterised in that：The descending carrier （35）Planet carrier shaft bearing IV is equidistantly installed on top（44）, planet carrier shaft bearing V（45）With planet carrier shaft bearing VI（46）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502235.XU CN207068328U (en) | 2017-05-08 | 2017-05-08 | A kind of manual cam profile curve drawing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720502235.XU CN207068328U (en) | 2017-05-08 | 2017-05-08 | A kind of manual cam profile curve drawing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207068328U true CN207068328U (en) | 2018-03-02 |
Family
ID=61504510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720502235.XU Expired - Fee Related CN207068328U (en) | 2017-05-08 | 2017-05-08 | A kind of manual cam profile curve drawing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207068328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799522A (en) * | 2021-09-17 | 2021-12-17 | 浙江理工大学 | Manual accurate drawing gauge for cam profiling curve |
-
2017
- 2017-05-08 CN CN201720502235.XU patent/CN207068328U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799522A (en) * | 2021-09-17 | 2021-12-17 | 浙江理工大学 | Manual accurate drawing gauge for cam profiling curve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20190508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |