CN209373913U - A kind of improved gear model for demonstration purpose - Google Patents
A kind of improved gear model for demonstration purpose Download PDFInfo
- Publication number
- CN209373913U CN209373913U CN201821807580.5U CN201821807580U CN209373913U CN 209373913 U CN209373913 U CN 209373913U CN 201821807580 U CN201821807580 U CN 201821807580U CN 209373913 U CN209373913 U CN 209373913U
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- fixedly connected
- gear
- case body
- transmission case
- support column
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Abstract
The utility model discloses a kind of improved gear model for demonstration purpose, belong to gear model for demonstration purpose field.A kind of improved gear model for demonstration purpose, including pedestal, further include having transmission case body；Braced frame is connected on the left of base upper surface, fixed plate is connected on the left of braced frame upper surface, lower end is connected with connecting rod on the right side of fixed plate, connecting rod right end is connect with magnetic gear base disc left side central portion, magnetic gear base disc right side central connects the briquetting that is magnetic, braced frame front and rear sides upper surface right end is respectively connected with threaded post, threaded post upper end is connected with convex block, support plate is connected in the middle part of threaded post, support plate right side central is provided with sliding slot, sliding rail is connected in sliding slot, it is connect on the right side of sliding rail with slide plate left side central portion, lower end is connected with multiple groups and is shorted bar on the right side of slide plate, bar right end is shorted to connect with rack gear lower end, transmission case body is connected on front side of support plate, the function of movement of the transmission device with carry-over bar can be achieved.
Description
Technical field
The utility model relates to gear model for demonstration purpose fields, more specifically to a kind of improved gear model for demonstration purpose.
Background technique
Widely used gear model for demonstration purpose in laboratory in colleges and universities at present, by the transverse guides with rack gear, rolling circle disk, circle
The components such as paper pallet, pressing plate composition when drawing master gear flank profil, needs for wheel blank circle paper to be mounted on shaping meter, screws spiral shell
Mother compresses circle paper with pressing plate, then rack cutter middle line is adjusted to center to zero, and keep its middle line and wheel blank reference circle tangent, by tooth
Knife and slide plate fasten, and rack cutter is finally pushed into one side extreme position, successively unidirectional mobile rack knife and are successively retouched with pencil
The wide each instantaneous position of tool blade out, draws 2 or more complete tooth forms, when drawing profile modified gear flank profil, needs first to unclamp compression spiral shell
Mother, rotation wheel blank circle paper, by normal shift sector face rack position, and compresses round paper, then respectively by rack cutter both ends scale
Middle line is adjusted to separate or close to gear blank reference circle certain distance, and rack cutter and slide plate are fastened, and draws positive negative addendum modification respectively
Gear profile, this results in following drawback: when needing to cut a hole, trouble and positioning among paper when positioning wheel blank circle paper
Often inaccuracy；Finely tune the Uniform Movement that rack cutter is difficult to realize when rack cutter transverse movement；Gear modification is by above and below tooth plate
Mobile realization, it is be easy to cause rack cutter deflection, the profile accuracy depicted will receive influence, in view of the above-mentioned problems, this is practical
It is novel to propose that a kind of improved gear model for demonstration purpose, the utility model are compressed wheel blank circle paper using magnetic force, driven using transmission device
The side-to-side movement of rack gear and the rotation of threaded post realize the up and down motion of rack gear, the effective solution above problem.
Utility model content
1. technical problems to be solved
(1) traditional gear model for demonstration purpose compresses the wheel blank circle side-to-side movement of paper, transmission device with carry-over bar without magnetic force
Function, this will keep the side-to-side movement precision of gear model for demonstration purpose lower, and the gear profile line precision drawn is lower；
(2) traditional gear model for demonstration purpose, the function of rotating to realize the up and down motion of rack gear without threaded post, this will
The precision for the gear profile line drawn using gear model for demonstration purpose is affected.
2. technical solution
To solve the above problems, the utility model adopts the following technical scheme.
A kind of improved gear model for demonstration purpose, including pedestal, further include having transmission case body；It is fixed on the left of the base upper surface
It is connected with braced frame, fixed plate is fixedly connected on the left of the braced frame upper surface, lower end is fixed on the right side of the fixed plate
It is connected with connecting rod, the connecting rod right end is fixedly connected with magnetic gear base disc left side central portion, the magnetic gear basic circle
Disk right side central magnetism connects the briquetting that is magnetic, and braced frame front and rear sides upper surface right end is rotatably connected to screw thread
Column, the threaded post lower end are in contact through braced frame top with braced frame lower part upper side, and the threaded post upper end is solid
Surely it is connected with convex block, is threaded with support plate in the middle part of the threaded post, the support plate is located inside braced frame, the branch
Fagging right side central is provided with sliding slot, and sliding rail is slidably connected in the sliding slot, is consolidated on the right side of the sliding rail with slide plate left side central portion
Fixed connection, slide plate right side lower end are fixedly connected with multiple groups and are shorted bar, and the short circuit bar right end is fixedly connected with rack gear lower end,
The magnetic gear base disc between slide plate and rack gear, is fixedly connected with transmission case on front side of the support plate far from center of circle side
Body.
Preferably, the transmission case body includes the first support column and the second support column, first support column lower end with
Transmission case body lower end inner surface is fixedly connected, and first upper end of support column is rotatably connected to rotating circular disc, the rotating circular disc
Upper side is symmetrically installed with rotating block and cutaway disk far from center of circle side, and the rotating circular disc downside is provided with far from the center point
Ring slot, second support column lower end are fixedly connected with transmission case body lower end inner surface, and second support column is located at the
On the left of one support column, second upper end of support column is rotatably connected to intermittently-driving structure, on the outside of the intermittently-driving structure with
Cutaway disk matches, and middle side part is fixedly connected with drive rod in the intermittently-driving structure, and the drive rod upper end is fixed to be connected
It is connected to miniature gear, through transmission case body right upper portion, the sliding rail left end is fixedly connected with screw thread for the left end of the sliding rail
Bar, the threaded rod match with miniature gear, and the transmission case body lower front is fixedly connected with knob, and the one of the knob
End is fixedly connected through transmission case body with middle part on front side of rotate gear, and the rotate gear matches with ring slot, above-mentioned knot
Structure can realize that the rotation by knob and rotate gear drives the rotation of rotating circular disc, and rotating circular disc drives intermittently-driving structure
Rotation, intermittently-driving structure drives the rotation of miniature gear by drive rod, to drive the rotation of sliding rail.
Preferably, the intermittently-driving structure includes driven disk and arc block, on rear side of the driven disk middle part with
Second support column front end is fixedly connected, and middle part is fixedly connected with transmission rod rear end on front side of the driven disk, the driven disk
Outside is fixedly connected with multiple groups arc block, and the arc block is provided with arc groove far from driven disk side, the arc groove with
Cutaway disk matches, and the notch between the adjacent arc block matches with rotating block, and above structure can realize rotating block and lack
Mouth disk drives the rotation of intermittently-driving structure under the action of arc block and arc groove.
Preferably, braced frame front and rear sides upper surface is provided with dial, the dial and convex block phase
Match, above structure, which can be realized through dial, makes convex block that threaded post be driven to turn an angle, and can make front and back side threaded post
The height of rise and fall is equal, prevents from tilting.
3. beneficial effect
Compared with the prior art, utility model has the advantages that
(1) when using the improved gear model for demonstration purpose, the wheel blank for needing to draw gear profile circle paper is passed through into magnetic first
Property briquetting fixation press on magnetic gear base disc, then rack gear and slide plate are drawn under the action of sliding slot is with sliding rail
At the limit of one side, then by control starting transmission case body, transmission case body drives slide plate and rack gear to wheel blank circle paper by sliding rail
Direction is slow, intermittent movement, when transmission case body drives slide plate and rack movement to the position for needing to cross by sliding rail,
Can be stopped transmission case body manually, facilitate scribing line, after scribing line, be again started up transmission case body, transmission case body drive slide plate and
Rack gear moves a small distance again, can cross again, because transmission case body is intermittently-driving, can be not required to stop after skilled operation
Transmission case body can stay for some time after transmission case body moves a small distance, can conveniently make in the following period of time of stop
User's scribing line can control the rotation of threaded post by convex block when needing the contour line of picture profile modified gear come raising and lowering branch
Fagging, the raising and lowering of support plate drive the raising and lowering of slide plate and rack gear, and the raising and lowering of rack gear can be drawn positive and negative
The gear profile line of displacement, while dial is provided on support frame, and dial matches with convex block, front and back can be made convex
Always, the height for rising or falling support plate is consistent, prevents the inclination of rack gear, makes the gear profile drawn for the angle of block rotation
Line precision is lower；
(2) when transmission case body is driven, the rotation of rotate gear, the rotation of rotate gear are driven by turning knob
The rotation of rotating circular disc is driven, the rotation of rotating circular disc drives the rotation of rotating block and cutaway disk, because of cutaway disk and arc
Slot matches, and the notch between rotating block and adjacent two arc block matches, so between the rotation of rotating block and cutaway disk drives
Drive mechanism of having a rest is rotated under the action of the second support column, and the rotation of intermittently-driving structure drives the rotation of drive rod, is passed
The rotation of lever drives the rotation of miniature gear, and because miniature gear and threaded rod match, the rotation of miniature gear drives screw thread
The movement of bar, threaded rod drive the movement of slide plate and rack gear by sliding rail, so that the transmission effect of transmission case body is realized, because of interval
The presence of drive mechanism makes the transmission intermittently-driving of transmission case body, while the presence of miniature gear is driven threaded rod once very
Continuous gear profile line is conveniently drawn in short distance, and the utility model structure is simple, easy to use.
Detailed description of the invention
Fig. 1 is the main structure side structure schematic view of the utility model；
Fig. 2 is the main structure positive structure diagram of the utility model；
Fig. 3 is the threaded post and support plate connection structure schematic diagram of the utility model；
Fig. 4 is the convex block and dial overlooking structure diagram of the utility model；
Fig. 5 is the transmission case body positive structure diagram of the utility model；
Fig. 6 is the transmission case body overlooking structure diagram of the utility model.
Figure label explanation:
1, pedestal；2, braced frame；3, fixed plate；4, connecting rod；5, magnetic gear base disc；6, magnetic briquetting；7,
Threaded post；8, convex block；9, support plate；10, sliding rail；11, slide plate；12, it is shorted bar；13, rack gear；14, sliding slot；15, transmission case body；
16, threaded rod；17, the first support column；18, rotating circular disc；19, rotating block；20, cutaway disk；21, the second support column；22,
It has a rest drive mechanism；23, drive rod；24, miniature gear；25, driven disk；26, arc block；27, arc groove；28, dial；
29, rotate gear；30, knob.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model；The technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe；Obviously；The described embodiments are only a part of the embodiments of the utility model；Rather than whole
Embodiment.Based on the embodiments of the present invention；Those of ordinary skill in the art are without making creative work
Every other embodiment obtained；It fall within the protection scope of the utility model.
Embodiment 1:
Fig. 1-4, a kind of improved gear model for demonstration purpose, including pedestal 1 are please referred to, further includes having transmission case body 15；On pedestal 1
It is fixedly connected with braced frame 2 on the left of surface, fixed plate 3,3 right side of fixed plate are fixedly connected on the left of 2 upper surface of braced frame
Lower end is fixedly connected with connecting rod 4, and 4 right end of connecting rod is fixedly connected with 5 left side central portion of magnetic gear base disc, magnetic gear base
5 right side central magnetism of disk connects the briquetting 6 that is magnetic, and 2 front and rear sides upper surface right end of braced frame is rotatably connected to spiral shell
Line column 7,7 lower end of threaded post are in contact through 2 top of braced frame with 2 lower part upper side of braced frame, and 7 upper end of threaded post is fixed
It is connected with convex block 8, support plate 9 is threaded in the middle part of threaded post 7, support plate 9 is located inside braced frame 2,9 right side of support plate
Middle part is provided with sliding slot 14, and sliding rail 10 is slidably connected in sliding slot 14, and 10 right side of sliding rail is fixedly connected with 11 left side central portion of slide plate,
11 right side lower end of slide plate is fixedly connected with multiple groups and is shorted bar 12, is shorted 12 right end of bar and is fixedly connected with 13 lower end of rack gear, magnetic tooth
Wheel base disc 5 between slide plate 11 and rack gear 13, is fixedly connected with transmission case body 15 far from center of circle side on front side of support plate 9.
2 front and rear sides upper surface of braced frame is provided with dial 28, and dial 28 matches with convex block 8.
Consolidate when the utility model is used, the wheel blank for needing to draw gear profile circle paper is passed through magnetic briquetting 6 first
Surely it presses on magnetic gear base disc 5, is then drawn to rack gear 13 and slide plate 11 under the action of sliding slot 14 is with sliding rail 10
At the limit of one side, then by control starting transmission case body 15, transmission case body 15 drives slide plate 11 and rack gear 13 by sliding rail 10
Slow, the intermittent movement to the direction of wheel blank circle paper, drives slide plate 11 and rack gear 13 to move in transmission case body 15 by sliding rail 10
To need cross position when, can stop transmission case body 15 manually, facilitate scribing line, after scribing line, be again started up transmission case
Body 15, transmission case body 15 drive slide plate 11 and rack gear 13 to move a small distance again, can cross again, because transmission case body 15 is
Intermittently-driving can be not required to the transmission case body 15 that stops after skilled operation, can stop after transmission case body 15 moves a small distance
For a period of time, when needing the contour line of picture profile modified gear, can pass through convenient for users to scribing line in the following period of time of stop
The rotation that convex block 8 controls threaded post 7 carrys out raising and lowering support plate 9, and the raising and lowering of support plate 9 drives slide plate 11 and rack gear
The raising and lowering of 13 raising and lowering, rack gear 13 can draw the gear profile line of positive negative addendum modification, while on support frame 2
It is provided with dial 28, and dial 28 matches with convex block 8, the angle that front and back convex block 8 can be made to rotate always, makes support plate 9
The height risen or fallen is consistent, prevents the inclination of rack gear 13, keeps the gear profile line precision drawn lower.
Embodiment 2:
Fig. 5-6 is please referred to, is based on embodiment 1, difference is, transmission case body 15 includes the first support column 17 and second
Support column 21,17 lower end of the first support column are fixedly connected with 15 lower end inner surface of transmission case body, the rotation of 17 upper end of the first support column
It is connected with rotating circular disc 18,18 upper side of rotating circular disc is symmetrically installed with rotating block 19 and cutaway disk 20 far from center of circle side, turns
Dynamic 18 downside of disk is provided with ring slot, 21 lower end of the second support column and 15 lower end inner surface of transmission case body far from the center point
It is fixedly connected, the second support column 21 is located at 17 left side of the first support column, and 21 upper end of the second support column is rotatably connected to intermittently-driving
Structure 22,22 outside of intermittently-driving structure match with cutaway disk 20, and middle side part is fixedly connected in intermittently-driving structure 22
Drive rod 23,23 upper end of drive rod are fixedly connected with miniature gear 24, and the left end of sliding rail 10 is through on 15 right side of transmission case body
Portion, 10 left end of sliding rail are fixedly connected with threaded rod 16, and threaded rod 16 matches with miniature gear 24,15 lower front of transmission case body
It is fixedly connected with knob 30, one end of knob 30 is fixedly connected with 29 front side middle part of rotate gear through transmission case body 15, rotates
Gear 29 matches with ring slot.
Intermittently-driving structure 22 includes driven disk 25 and arc block 26, and driven 25 rear side middle part of disk is supported with second
21 front end of column is fixedly connected, and driven 25 front side middle part of disk is fixedly connected with 23 rear end of drive rod, fixed on the outside of driven disk 25
It is connected with multiple groups arc block 26, arc block 26 is provided with arc groove 27, arc groove 27 and notch circle far from driven 25 side of disk
Disk 20 matches, and the notch between adjacent arc block 26 matches with rotating block 19.
When the utility model is used, driving rotate gear by turning knob 30 when transmission case body 15 is driven
29 rotation, the rotation of rotate gear 29 drive the rotation of rotating circular disc 18, and the rotation of rotating circular disc 18 drives 19 He of rotating block
The rotation of cutaway disk 20, because cutaway disk 20 and arc groove 27 match, lacking between rotating block 19 and adjacent two arc block 26
Mouth matches, so the rotation of rotating block 19 and cutaway disk 20 drives intermittently-driving structure 22 in the effect of the second support column 21
Under rotated, the rotation of intermittently-driving structure 22 drives the rotation of drive rod 23, and the rotation of drive rod 23 drives miniature gear
24 rotation, because miniature gear 24 and threaded rod 16 match, the rotation of miniature gear 24 drives the movement of threaded rod 16, screw thread
Bar 16 drives the movement of slide plate 11 and rack gear 13 by sliding rail 10, so that the transmission effect of transmission case body 15 is realized, because interval passes
The presence of dynamic structure 22 makes the transmission intermittently-driving of transmission case body 15, while the presence of miniature gear 24 keeps threaded rod 16 primary
It is driven very short distance, conveniently draws continuous gear profile line, the utility model structure is simple, easy to use.
It is described above；The only preferable specific embodiment of the utility model；But the protection scope of the utility model is not
It is confined to this；Anyone skilled in the art is within the technical scope disclosed by the utility model；It is practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change；It should all cover in the protection scope of the utility model
It is interior.In addition, one word of " comprising " is not excluded for other elements or step, "one" word before the component is not excluded for including " multiple " be somebody's turn to do
Element.The multiple multiple elements stated in claim to a product can also by an element by software or hardware come real
It is existing.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (4)
1. a kind of improved gear model for demonstration purpose, including pedestal (1), it is characterised in that: further include having transmission case body (15)；The bottom
Seat is fixedly connected with braced frame (2) on the left of (1) upper surface, is fixedly connected with fixation on the left of braced frame (2) upper surface
Plate (3), fixed plate (3) right side lower end are fixedly connected with connecting rod (4), connecting rod (4) right end and magnetic gear base
Disk (5) left side central portion is fixedly connected, and magnetic gear base disc (5) the right side central magnetism connection is magnetic briquetting (6),
Braced frame (2) front and rear sides upper surface right end is rotatably connected to threaded post (7), and threaded post (7) lower end is run through
Braced frame (2) top is in contact with braced frame (2) lower part upper side, and threaded post (7) upper end is fixedly connected with convex block
(8), it is threaded with support plate (9) in the middle part of the threaded post (7), the support plate (9) is located at braced frame (2) inside, institute
It states support plate (9) right side central to be provided with sliding slot (14), slidably connects sliding rail (10), the sliding rail in the sliding slot (14)
(10) right side is fixedly connected with slide plate (11) left side central portion, and lower end is fixedly connected with multiple groups and is shorted bar on the right side of the slide plate (11)
(12), short circuit bar (12) right end is fixedly connected with rack gear (13) lower end, and the magnetic gear base disc (5) is far from center of circle side
Between slide plate (11) and rack gear (13), transmission case body (15) are fixedly connected on front side of the support plate (9).
2. a kind of improved gear model for demonstration purpose according to claim 1, it is characterised in that: the transmission case body (15) includes
There are the first support column (17) and the second support column (21), table in the first support column (17) lower end and transmission case body (15) lower end
Face is fixedly connected, and the first support column (17) upper end is rotatably connected to rotating circular disc (18), on the upside of the rotating circular disc (18)
Face is symmetrically installed with rotating block (19) and cutaway disk (20) far from center of circle side, and rotating circular disc (18) downside is far from the center of circle
Place is provided with ring slot, and the second support column (21) lower end is fixedly connected with transmission case body (15) lower end inner surface, described
Second support column (21) is located on the left of the first support column (17), and the second support column (21) upper end is rotatably connected to intermittently-driving
Structure (22), intermittently-driving structure (22) outside matches with cutaway disk (20), on the intermittently-driving structure (22)
Middle side part is fixedly connected with drive rod (23), and drive rod (23) upper end is fixedly connected with miniature gear (24), the sliding rail
(10) left end is fixedly connected with threaded rod (16), institute through transmission case body (15) right upper portion, sliding rail (10) left end
Threaded rod (16) to be stated to match with miniature gear (24), transmission case body (15) lower front is fixedly connected with knob (30),
One end of the knob (30) is fixedly connected through transmission case body (15) with middle part on front side of rotate gear (29), the rotate gear
(29) match with ring slot.
3. a kind of improved gear model for demonstration purpose according to claim 2, it is characterised in that: the intermittently-driving structure (22)
It include driven disk (25) and arc block (26), middle part is solid with the second support column (21) front end on rear side of the driven disk (25)
Fixed connection, driven disk (25) the front side middle part is fixedly connected with drive rod (23) rear end, on the outside of the driven disk (25)
It being fixedly connected with multiple groups arc block (26), the arc block (26) is provided with arc groove (27) far from driven disk (25) side,
The arc groove (27) matches with cutaway disk (20), the notch between the adjacent arc block (26) and rotating block (19) phase
Match.
4. a kind of improved gear model for demonstration purpose according to claim 1, it is characterised in that: before and after the braced frame (2)
Two sides upper surface is provided with dial (28), and the dial (28) matches with convex block (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807580.5U CN209373913U (en) | 2018-11-05 | 2018-11-05 | A kind of improved gear model for demonstration purpose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821807580.5U CN209373913U (en) | 2018-11-05 | 2018-11-05 | A kind of improved gear model for demonstration purpose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373913U true CN209373913U (en) | 2019-09-10 |
Family
ID=67835936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821807580.5U Expired - Fee Related CN209373913U (en) | 2018-11-05 | 2018-11-05 | A kind of improved gear model for demonstration purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209373913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816052A (en) * | 2020-08-28 | 2020-10-23 | 中国农业大学 | Gear virtual generating instrument and gear virtual generating experiment using same |
-
2018
- 2018-11-05 CN CN201821807580.5U patent/CN209373913U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111816052A (en) * | 2020-08-28 | 2020-10-23 | 中国农业大学 | Gear virtual generating instrument and gear virtual generating experiment using same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 Termination date: 20201105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |