CN203631009U - Contour line generation demonstration device for disc cam of pointed translating follower - Google Patents
Contour line generation demonstration device for disc cam of pointed translating follower Download PDFInfo
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- CN203631009U CN203631009U CN201320751600.2U CN201320751600U CN203631009U CN 203631009 U CN203631009 U CN 203631009U CN 201320751600 U CN201320751600 U CN 201320751600U CN 203631009 U CN203631009 U CN 203631009U
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Abstract
The utility model discloses a contour line generation demonstration device for a disc cam of a pointed translating follower. The contour line generation demonstration device comprises a rack, wherein an upper side frame of the rack is internally provided with a mobile tooth bar, the mobile tooth bar is internally provided with a sliding groove, a roller is arranged in the sliding groove, the roller is connected with the upper side frame of the rack, a drawing groove is arranged in the upper side frame of the rack corresponding to the middle part of the upper end of the mobile tooth bar, one side of the drawing groove is provided with a displacement curve template, the upper side frame of the rack corresponding to the middle part of the lower end of the mobile tooth bar is provided with a gear, a movable cross beam is arranged between left and right side frames of the rack, an installation fixing groove is arranged in the movable cross beam, the gear is connected with the upper end of a flexible transmission system through a rotating shaft, the lower end of the flexible transmission system is connected with another rotating shaft, and the rotating shaft passes through the installation fixing groove to be connected with a drawing disc. The contour line generation demonstration device makes the contour line of the cam to be generated more directly and vividly through simulating the rotation of the disc cam by using the drawing disc, simulating the movement of the pointed translating follower by using the displacement curve template, and setting the structural size of the cam by using the flexible transmission system.
Description
Technical field
The utility model belongs to teaching aid technical field, and the profile that is specifically related to a kind of pinnacle translating follower disc cam generates apparatus for demonstrating.
Background technology
Mechanical principle is an important mechanical speciality basic course, wherein must relate to cam mechanism, teacher needs to make following selection often in the design of instruction cam profile: (1) first directly asks for the coordinate of cam profile by analytical method, processed by numerically-controlled machine again, but the foundation of equation in coordinates is difficult to depart from the generating principle of cam profile; (2) draw cam profile by graphing method, although this method simple, intuitive, and can express deeply the kinematic relation between cam angle and driven member displacement, but must carry out movement reversal, getting cam is frame, former frame rotates backward, understand difficulty although can increase, but the generating principle of the map contour line that developed, carry out aided education owing to lacking suitable teaching aid, so be necessary to explore new method, can be in mode true, vivid and that can manipulate, the profile that helps student better to grasp cam generates.
Utility model content
The purpose of this utility model is to provide the profile of a kind of pinnacle translating follower disc cam to generate apparatus for demonstrating, has realized the generation of cam profile by the method for dynamic demonstration.
The technical scheme that the utility model adopts is, the profile of pinnacle translating follower disc cam generates apparatus for demonstrating, include frame, frame is rectangular frame, in the upper side frame of frame, middle part has been horizontally disposed with mobile rack, the middle part of mobile rack is provided with sliding tray, in sliding tray, be provided with a pair roller, one pair roller is connected with the upper side frame of frame by revolute pair respectively, on the mobile rack on sliding tray top, be provided with scale plate, in frame upper side frame corresponding to mobile rack upper center, be vertically provided with drawing groove, drawing groove one side is provided with displacement curve template, mobile rack lower end is provided with tooth, on the frame upper side frame of middle part, mobile rack lower end correspondence, be provided with gear, a left side for frame, between left frame, be provided with movable beam, the middle part of movable beam is provided with installation pickup groove, gear is connected with the upper end of flexible transmission system by the first rotation axis, the lower end of flexible transmission system is connected with one end of the second rotating shaft, the second rotating shaft is connected with drawing disk through pickup groove is installed.
Feature of the present utility model is also,
The lower frame two base angle places of frame are respectively provided with a support.
The central authorities of drawing disk are provided with corner scaleplate.
Movable beam, includes horizontally disposed crossbeam, and the two ends of crossbeam are respectively arranged with a movable locking device, and movable beam two ends are connected with the left and right frame of frame by described movable locking device respectively.
Flexible transmission system, include connecting rod and lower link, between the lower end of upper connecting rod, the upper end of lower link, be connected with a profile of tooth belt wheel by revolute pair, the upper end of upper connecting rod and the lower end of lower link are connected with a profile of tooth belt wheel by revolute pair respectively, the profile of tooth belt wheel of upper small end is connected with the first rotation axis, the profile of tooth belt wheel of lower link lower end is connected with the second rotation axis, between three profile of tooth belt wheels, connects by cog belt.
Mobile rack lower end is provided with the tooth engaging with gear.
In drawing groove, be provided with nib.
The beneficial effects of the utility model are:
(1) profile of pinnacle of the present utility model translating follower disc cam generates apparatus for demonstrating and can set up the relation between cam angle and driven member displacement with intuitive manner, the decisive role of profound understanding displacement curve in cam design, by the contact point of this cam of pinnacle and driven member, by observing and demonstrate the dynamic generative process of cam profile, the principle of profound understanding map contour line traffic control driven member motion, and on this basis, all kinds of job operations of study and research cam.
(2) profile of pinnacle of the present utility model translating follower disc cam generation apparatus for demonstrating can excite student to remove consideration and practice, allow abstract and complicated kinematic geometry relation straighten sight with simple, can reduce teacher and explain the difficulty that map contour line designs.
(3) profile of pinnacle of the present utility model translating follower disc cam generates the example that apparatus for demonstrating can also carry out motion scheme design as cultivation student, grasps the combination technical ability of all kinds of mechanisms, is a good aided education apparatus.
Accompanying drawing explanation
Fig. 1 is the structural drawing that the profile of pinnacle of the present utility model translating follower disc cam generates apparatus for demonstrating.
In figure, 1. drawing disk, 2. movable beam, 3. flexible transmission system, 4. gear, 5. mobile rack, 6. displacement curve template, 7. frame, 8. support, 9. corner scaleplate, 10. movable locking device, 11. install pickup groove, 12. cog belts, 13. profile of tooth belt wheels, connecting rod on 14., 15. sliding trays, 16. rollers, 17. template scales, 18. drawing grooves, 19. lower links.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The profile of pinnacle of the present utility model translating follower disc cam generates apparatus for demonstrating, its structure as shown in Figure 1, include frame 7, frame 7 is rectangular frame, in the upper side frame of frame 7, middle part has been horizontally disposed with mobile rack 5, the middle part of mobile rack 5 is provided with sliding tray 15, in sliding tray 15, be provided with a pair roller 16, one pair roller 16 is connected with the upper side frame of frame 7 by revolute pair respectively, on the mobile rack 5 on sliding tray 15 tops, be provided with scale plate 17, in frame 7 upper side frames corresponding to mobile rack 5 upper center, be vertically provided with drawing groove 18, drawing groove 18 1 sides are provided with displacement curve template 6, mobile rack 5 lower ends are provided with tooth, on frame 7 upper side frames of mobile rack 5 middle part, lower end correspondences, be provided with gear 4, a left side for frame 7, between left frame, be provided with movable beam 2, the middle part of movable beam 2 is provided with installs pickup groove 11, gear 4 is connected with the upper end of flexible transmission system 3 by the first rotation axis, the lower end of flexible transmission system 3 is connected with one end of the second rotation axis, the second rotating shaft is connected with drawing disk 1 through pickup groove 11 is installed.
In frame 7, be provided with rectangular window, the lower frame two base angle places of frame 7 are respectively provided with a support 8.
The central authorities of drawing disk 1 are provided with corner scaleplate 9.
The lower end of mobile rack 5 is provided with the tooth engaging with gear 4.
Sliding tray 15 forms moving sets with a pair roller 16 of frame 7 interior settings, can realize the movement of mobile rack 5 with respect to frame 7, template scale 17 is with respect to the angle of rotation of the corresponding cam of amount of movement of drawing groove 18, and drawing groove 18, for putting into nib, can be drawn map contour line on drawing disk 1.
The profile of pinnacle of the present utility model translating follower disc cam generates in apparatus for demonstrating, and corner scaleplate 9 can be fixed on circular plotting paper on drawing disk 1, can in the time rotating drawing disk 1, read corner; Drawing disk 1 is connected with the lower end of flexible transmission system 3 by the second rotation axis, and be fixed on the correct position of movable beam 2, movable beam 2 can move along the frame of frame 7, can be connected as a single entity at correct position and frame 7, flexible transmission system 3 is connected with gear 4 with the first rotation axis in upper end and is fixed in frame 7, mobile rack 5 has been fixed displacement curve template 6, engage and can move with respect to frame 7 with gear 4, in drawing groove 18 in frame 7, put pen, and be close to displacement curve template 6, rotate drawing disk 1 and just can draw required cam profile.
Because the diameter of each profile of tooth belt wheel 13 in flexible transmission system 3 is identical, so the ratio of gear of flexible transmission system 3 is 1, the drawing disk 1 connected with flexible transmission system 3 is identical with the inevitable corner of gear 4, by the girth of gear 4, displacement template curve 6 being carried out to 360 ° of scales is template scale 17, between displacement in corner on drawing disk 1 and displacement curve template 6, just can set up strict corresponding relation, the scale on corner scaleplate 9 is corresponding one by one with template scale 17.Scale on corner scaleplate 9 can read with respect to pickup groove 11 is installed, and template scale 17 should read with respect to drawing groove 18.
The profile of pinnacle of the present utility model translating follower disc cam generates apparatus for demonstrating concrete operations flow process: first suitable circular plotting paper corner scaleplate 9 is fixed on drawing disk 1, the second rotation axis again drawing disk 1 being connected is fixed in the installation pickup groove 11 of movable beam 2, and be connected with the profile of tooth belt wheel 13 of flexible transmission system 3 lower ends, the position of the second rotation axis that adjustment movable beam 2 is connected with drawing disk 1, required base radius and offset distance can be set, select suitable displacement curve template 6, be fixed on mobile rack 5 by template scale 17, and put pen in drawing groove 18 in frame 7, nib must be close to displacement curve template 6, rotate drawing disk 1 and just can on plotting paper, draw required cam profile.
Claims (7)
1. the profile of pinnacle translating follower disc cam generates apparatus for demonstrating, it is characterized in that, include frame (7), described frame (7) is rectangular frame, in the upper side frame of described frame (7), middle part has been horizontally disposed with mobile rack (5), the middle part of described mobile rack (5) is provided with sliding tray (15), in described sliding tray (15), be provided with a pair roller (16), one pair roller (16) is connected with the upper side frame of described frame (7) by revolute pair respectively, on the mobile rack (5) on described sliding tray (15) top, be provided with scale plate (17), in frame (7) upper side frame corresponding to described mobile rack (5) upper center, be vertically provided with drawing groove (18), described drawing groove (18) one sides are provided with displacement curve template (6), described mobile rack (5) lower end is provided with tooth, on frame (7) upper side frame of middle part, described mobile rack (5) lower end correspondence, be provided with gear (4), a left side for described frame (7), between left frame, be provided with movable beam (2), the middle part of described movable beam (2) is provided with installs pickup groove (11), described gear (4) is connected with the upper end of flexible transmission system (3) by the first rotation axis, the lower end of described flexible transmission system (3) is connected with one end of the second rotating shaft, described the second rotating shaft is connected with described drawing disk (1) through pickup groove (11) is installed.
2. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, the lower frame two base angle places of described frame (7) are respectively provided with a support (8).
3. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, the central authorities of described drawing disk (1) are provided with corner scaleplate (9).
4. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, described movable beam (2), include horizontally disposed crossbeam, the two ends of described crossbeam are respectively arranged with a movable locking device (10), and described movable beam (2) two ends are connected with the left and right frame of described frame (7) by described movable locking device (10) respectively.
5. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, described flexible transmission system (3), include connecting rod (14) and lower link (19), the lower end of described upper connecting rod (14), between the upper end of described lower link (19), be connected with a profile of tooth belt wheel (13) by revolute pair, the lower end of the upper end of described upper connecting rod (14) and described lower link (19) is connected with a profile of tooth belt wheel (13) by revolute pair respectively, the profile of tooth belt wheel (13) of described upper connecting rod (14) upper end is connected with described the first rotation axis, the profile of tooth belt wheel (13) of described lower link (19) lower end is connected with described the second rotation axis, between three profile of tooth belt wheels (13), connect by cog belt (12).
6. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, described mobile rack (5) lower end is provided with the tooth engaging with described gear (4).
7. the profile of pinnacle according to claim 1 translating follower disc cam generates apparatus for demonstrating, it is characterized in that, in described drawing groove (18), is provided with nib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751600.2U CN203631009U (en) | 2013-11-21 | 2013-11-21 | Contour line generation demonstration device for disc cam of pointed translating follower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320751600.2U CN203631009U (en) | 2013-11-21 | 2013-11-21 | Contour line generation demonstration device for disc cam of pointed translating follower |
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| Publication Number | Publication Date |
|---|---|
| CN203631009U true CN203631009U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320751600.2U Expired - Fee Related CN203631009U (en) | 2013-11-21 | 2013-11-21 | Contour line generation demonstration device for disc cam of pointed translating follower |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057755A (en) * | 2014-07-05 | 2014-09-24 | 福州大学 | Oscillating follower disc cam profile curve inverse solution mechanism |
| CN104070895A (en) * | 2014-07-09 | 2014-10-01 | 陈志昂 | Study instrument of cam mechanism |
| CN104085230A (en) * | 2014-06-17 | 2014-10-08 | 江汉大学 | Curve block and cam contour curve drawing instrument |
| CN104123877A (en) * | 2014-07-04 | 2014-10-29 | 龙岩学院 | Displacement-profile generation demonstrator for cam mechanism |
| CN104134391A (en) * | 2014-07-28 | 2014-11-05 | 重庆理工大学 | Cam contour line generation experiment instrument |
| CN104332093A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Cam analyzer |
| CN104409009A (en) * | 2014-12-17 | 2015-03-11 | 福州大学 | Planar cam mechanism demonstration instrument for translating follower and using method thereof |
| CN104626829A (en) * | 2014-12-08 | 2015-05-20 | 江西理工大学 | Cam profile line generating instrument and generating method |
-
2013
- 2013-11-21 CN CN201320751600.2U patent/CN203631009U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085230A (en) * | 2014-06-17 | 2014-10-08 | 江汉大学 | Curve block and cam contour curve drawing instrument |
| CN104085230B (en) * | 2014-06-17 | 2016-04-06 | 江汉大学 | Curve block, cam profile curve plotter |
| CN104123877A (en) * | 2014-07-04 | 2014-10-29 | 龙岩学院 | Displacement-profile generation demonstrator for cam mechanism |
| CN104057755A (en) * | 2014-07-05 | 2014-09-24 | 福州大学 | Oscillating follower disc cam profile curve inverse solution mechanism |
| CN104057755B (en) * | 2014-07-05 | 2016-01-06 | 福州大学 | A kind of Plate Cam with Swinging Follower contour curve reverse mechanism |
| CN104070895A (en) * | 2014-07-09 | 2014-10-01 | 陈志昂 | Study instrument of cam mechanism |
| CN104070895B (en) * | 2014-07-09 | 2017-03-01 | 陈志昂 | A kind of cam mechanism research apparatus |
| CN104134391A (en) * | 2014-07-28 | 2014-11-05 | 重庆理工大学 | Cam contour line generation experiment instrument |
| CN104332093A (en) * | 2014-09-17 | 2015-02-04 | 杭州电子科技大学 | Cam analyzer |
| CN104626829A (en) * | 2014-12-08 | 2015-05-20 | 江西理工大学 | Cam profile line generating instrument and generating method |
| CN104626829B (en) * | 2014-12-08 | 2016-04-27 | 江西理工大学 | A kind of cam profile instrument for generating and generation method |
| CN104409009A (en) * | 2014-12-17 | 2015-03-11 | 福州大学 | Planar cam mechanism demonstration instrument for translating follower and using method thereof |
| CN104409009B (en) * | 2014-12-17 | 2016-08-17 | 福州大学 | A kind of translating follower planar cam mechanism demonstrator and using method thereof |
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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: 20140604 Termination date: 20141121 |
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| EXPY | Termination of patent right or utility model |