CN113077706B - Spatial mechanism teaching experiment table - Google Patents
Spatial mechanism teaching experiment table Download PDFInfo
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- CN113077706B CN113077706B CN202110267270.9A CN202110267270A CN113077706B CN 113077706 B CN113077706 B CN 113077706B CN 202110267270 A CN202110267270 A CN 202110267270A CN 113077706 B CN113077706 B CN 113077706B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/02—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
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Abstract
The invention relates to a space mechanism teaching experiment table, which comprises a frame and a mechanical mechanism arranged on the frame, wherein the frame comprises a plurality of three-dimensional frames, each three-dimensional frame comprises a top plate, a bottom plate and an upright rod, the top plate and the bottom plate are both in a fan shape, the top plate and the bottom plate are arranged in parallel up and down and are vertically connected with the center of the fan shape through the upright rods, when the space mechanism is used, the required number of three-dimensional frames are selected to form the frame according to needs, the mechanical mechanism is a space mechanical structure, and is arranged on the frame through a connecting piece.
Description
Technical Field
The invention relates to the technical field of mechanical teaching aids, in particular to a spatial mechanism teaching experiment table.
Background
The basic assembly of various components (including the frame) that can achieve the desired mechanical motion is referred to as a mechanism. Various mechanisms can be contacted in course study related to mechanical profession, and the mechanism structure is analyzed to research the possibility and accuracy of mechanism movement and further discuss the mechanism composition principle. The teaching experiment table can present the motion of mechanical mechanism, makes things convenient for the student to understand and study, tempers student's manipulative ability, triggers student's innovative thinking, plays important role in mechanical teaching. However, most of the teaching experiment tables applied today are based on planar motion in type and specific structure, the research on space mechanism is not sufficient and deep, and the mechanism combination is relatively single. In order to meet the corresponding teaching requirements and the practice requirements of students, a space mechanism teaching experiment table with various combinations suitable for teaching and practice needs to be researched.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a spatial mechanism teaching experiment table, which has a detachable rack, various combinations and transformations, is convenient to build and can present various spatial mechanisms.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a space mechanism teaching experiment platform, includes the frame and establishes the mechanical mechanism in the frame, the frame includes a plurality of space frame, and every space frame includes roof, bottom plate and pole setting, roof and bottom plate are fan-shaped, and parallel arrangement connects fan-shaped center through the pole setting is perpendicular about the two, the arc edge of roof is provided with a series of triangle-shaped holes, selects the space frame constitution frame of required quantity as required during the use, mechanical mechanism is space mechanical structure, sets up in the frame through the connecting piece, the connecting piece lower part sets up the spliced pole that matches with the triangle-shaped hole, and upper portion is equipped with the part that the through-hole is convenient to be connected with mechanical mechanism, be provided with the motor through the motor supporting seat in the frame for provide power for mechanical mechanism.
Furthermore, the mechanical mechanism comprises a space spherical connecting rod mechanism, a space spherical joint mechanism, a space universal joint mechanism or a space sliding rod and universal joint mechanism which are formed by different combinations of a plurality of spherical connecting rods, cranks, rocking rods, spherical joints, universal joints, sliding rods and connecting rods.
Furthermore, the top plate and the bottom plate of the three-dimensional frame are 120-degree sector plates, the upright rods are one-third sector long rods formed by the cylindrical rods in a quasi-trisection manner by taking the central line as a quasi-trisection manner, when the three-dimensional frames are spliced together, the upright rods form a complete cylindrical rod, and the top plate and the bottom plate form a complete circular frame respectively.
Further, the space spherical connecting rod mechanism comprises a first inner ball connecting rod, a second inner ball connecting rod and a second outer ball connecting rod, at the moment, the rack is a circular three-dimensional frame formed by splicing three-dimensional frames, the motor is installed on one of the three-dimensional frames through the motor supporting seat, one end of the first inner ball connecting rod is connected with an output shaft of the motor through a connecting piece, the other end of the first inner ball connecting rod is connected with one end of the second outer ball connecting rod through a bolt nut, the other end of the second outer ball connecting rod is connected with one end of the second inner ball connecting rod through a bolt nut, the other end of the second inner ball connecting rod is rotatably arranged on the rack through the connecting piece, the three connecting rods are spherical connecting rods, the centers of the three connecting rods coincide, and the movement tracks of all points on one concentric spherical surface.
Furthermore, the spatial ball joint mechanism comprises a crank, a rocker, two ball joints and a ball joint connecting rod, the rack comprises two three-dimensional frames which are randomly placed at the moment, a plurality of connecting holes are formed in the crank and the rocker, one end of the crank is connected with a motor arranged on one of the three-dimensional frames through a connecting piece, a first ball joint is installed on the crank, the first ball joint is connected with a second ball joint through the ball joint connecting rod, the second ball joint is installed on the rocker, the other end of the rocker is arranged on the other three-dimensional frame through the connecting piece, and rotary motion input by the crank is transmitted to the rocker through the spatial ball joint mechanism.
Furthermore, the space universal joint mechanism is composed of a crank, a rocker and a universal joint, the rack is composed of two three-dimensional frames which are randomly placed at the moment, a plurality of connecting holes are formed in the crank and the rocker, one end of the crank is connected with a motor arranged on one of the three-dimensional frames through a connecting piece, one end of the rocker is arranged on the other three-dimensional frame through the connecting piece, two ends of the universal joint are respectively arranged on the crank and the rocker, and rotary motion input by the crank is transmitted to the rocker through the space universal joint mechanism.
Further, space slide bar and universal joint mechanism include slide bar one, slide bar two, universal joint and crank, and the frame is constituteed for two space frames of putting wantonly this moment, is equipped with a plurality of connecting holes on the crank, and slide bar one and slide bar two are cylindrical pole, the one end of slide bar one is passed through the connecting piece and is installed on one of them space frame, and the other end rotates the one end of connecting at the universal joint, and the one end of slide bar two is passed through the muffjoint at the universal joint other end, and the other end fixed mounting of slide bar two is on the crank, and the crank passes through the connecting piece and installs on another space frame, and the motor transmits power for the crank, and the rotary motion of inputting by the crank is converted into slide bar one through this space slide bar and the transmission of universal joint mechanism and is followed the reciprocating motion of self axis.
Furthermore, a vertical connecting column is arranged on the outer wall of the sleeve, the sleeve is fixed to the other end of the universal joint through the connecting column, and the second sliding rod penetrates through the sleeve.
Furthermore, a plurality of ribs radiating from the center of the fan shape to the edge are arranged on the top plate or the bottom plate of the three-dimensional frame, so that the strength is increased.
Has the advantages that:
according to the spatial mechanism teaching experiment table provided by the invention, the rack is formed by combining three-dimensional frames, and the spatial mechanism teaching experiment table has the advantages of being detachable and convenient for building different spatial mechanisms; particularly, when the spatial spherical connecting rod mechanism is built, the three same three-dimensional frames can be combined into the rack with the circular structure, so that the spherical connecting rod is convenient to mount, and the motion of the spatial spherical connecting rod mechanism is realized; the space mechanism has various combinations and transformations, and the space mechanisms with different structures can be combined and set up through the matching of the basic mechanical assembly and the frame, so that the defects that the existing teaching experiment table is single in function and cannot realize the motion of the space mechanism are overcome, the teaching experiment efficiency can be improved, and the innovative thinking of students is stimulated.
Drawings
FIG. 1 is a block diagram of a three-dimensional frame of a rack according to the present invention;
FIG. 2 is a block diagram of a spatial spherical linkage mechanism of the present invention;
FIG. 3 is a block diagram of another angle of the spatial spherical linkage of FIG. 2;
FIG. 4 is a structural view of the spatial ball joint mechanism of the present invention;
FIG. 5 is a block diagram of the space gimbal mechanism of the present invention;
FIG. 6 is a structural diagram of the space slide bar and gimbal mechanism of the present invention;
FIG. 7 is a partial block diagram of FIG. 6;
FIG. 8 is a block diagram of the connector of the present invention;
fig. 9 is a structural view of the motor connector of the present invention.
Reference numerals are as follows: 1. the device comprises a three-dimensional frame, 1-1 parts of top plates, 1-2 parts of vertical rods, 1-3 parts of bottom plates, 2 parts of motors, 2-1 parts of motor connecting pieces, 3 parts of motor supporting seats, 4 parts of connecting pieces, 5 parts of first inner ball connecting rods, 6 parts of second inner ball connecting rods, 7 parts of outer ball connecting rods, 8 parts of cranks, 9 parts of rocking bars, 10 parts of first ball joints, 11 parts of ball joint connecting rods, 12 parts of second ball joints, 13 parts of universal joints, 14 parts of first sliding rods, 15 parts of second sliding rods and 16 sleeves.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
The utility model provides a spatial mechanism teaching experiment platform, includes the frame and establishes the mechanical mechanism in the frame, the frame includes a plurality of space frame 1, as shown in figure 1, every space frame 1 includes roof 1-1, bottom plate 1-3 and pole setting 1-2, roof 1-1 and bottom plate 1-3 are fan-shaped, and both parallel arrangement from top to bottom and connect fan-shaped center perpendicularly through pole setting 1-2, the arc edge of roof 1-1 is provided with a series of triangle-shaped holes, and the frame of constituteing by space frame 1 has the detachability, and the mechanism of setting up as required during the use selects the space frame 1 constitution frame of required quantity, and mechanical mechanism passes through connecting piece 4 and sets up in the frame, and the structure of connecting piece 4 is as shown in figure 8, connecting piece 4 lower part sets up the spliced pole that matches with the triangle-shaped hole, and upper portion is equipped with the through-hole convenience and is connected with mechanical mechanism's part, be provided with motor 2 through motor supporting seat 3 on one of frame 1 for provide power for mechanical mechanism, motor 2 can select small-size step motor, and motor 2 is connected with mechanical mechanism through motor 2-1 and connecting piece 4 and mechanical mechanism's input power part, and connecting piece is as shown in figure 9.
The mechanical mechanism mainly refers to a space mechanical structure, and comprises but is not limited to a space spherical connecting rod mechanism, a space spherical joint mechanism, a space universal joint mechanism or a space sliding rod and universal joint mechanism which are formed by combining a plurality of spherical connecting rods, cranks, rocking bars, spherical joints, universal joints, sliding rods and connecting rods in different modes, and other required space mechanisms can be built through parts according to needs when the mechanical mechanism is used.
Specifically, a top plate 1-1 and a bottom plate 1-3 of the three-dimensional frame 1 are 120-degree sector plates, the upright rods 1-2 are one-third sector long rods formed by cylinder rods in a quasi-trisection mode by taking a central line as a quasi-trisection mode, when the three-dimensional frames 1 are spliced together, the upright rods 1-2 form a complete cylinder rod, and the top plate 1-1 and the bottom plate 1-3 form a complete circular frame respectively.
According to the invention, different space mechanisms can be built by combining different rack forms and different mechanical mechanisms, and space movement is realized under the drive of the motor.
As shown in fig. 2 and 3, a spatial mechanism teaching experiment table, a frame is a circular three-dimensional frame formed by splicing three-dimensional frames 1, and a mechanical mechanism is a spatial spherical link mechanism, and includes a first inner ball link 5, a second inner ball link 6 and a second outer ball link 7, at this time, a motor 2 is mounted on one of the three-dimensional frames 1 through a motor support base 3, one end of the first inner ball link 5 is connected with an output shaft of the motor 2 through a connecting piece 4 and a motor connecting piece 2-1, the other end of the first inner ball link is connected with one end of the second outer ball link 7 through a bolt and a nut, the other end of the second outer ball link 7 is connected with one end of the second inner ball link 6 through a bolt and a nut, the other end of the second inner ball link 6 is rotatably disposed on the other three-dimensional frame 1 of the frame through the connecting piece 4, three links forming the spatial spherical link mechanism are spherical links, centers of which coincide, movement trajectories of all points on the three links are on a concentric sphere, and a movement of the three links drives the outer ball link 7 and the second inner ball link 6 to realize spatial movement of the mechanism through movement inputted by the first inner ball link 5.
As shown in fig. 4, a spatial mechanism teaching experiment table, a rack is composed of two three-dimensional frames 1 which are randomly placed, a mechanical mechanism is a spatial ball joint mechanism, and is composed of a crank 8, a rocker 9, two ball joints and a ball joint connecting rod 11, the crank 8 and the rocker 9 are respectively provided with a plurality of connecting holes, which are convenient for adjusting the connecting length, one end of the crank 8 is connected with a motor 2 (not shown in the figure) arranged on one of the three-dimensional frames 1 through a connecting piece 4 and a motor connecting piece 2-1, the crank 8 is provided with the ball joint one 10, the ball joint one 10 is connected with a ball joint two 12 through the ball joint connecting rod 11, the ball joint two 12 is arranged on the rocker 9, the other end of the rocker 9 is arranged on the other three-dimensional frame 1 through the connecting piece 4, and the rotary motion input by the crank 8 is transmitted to the rocker 9 through the spatial ball joint mechanism.
As shown in fig. 5, the frame is composed of two space frames 1 placed at will, the mechanical mechanism is a space universal joint mechanism, and is composed of a crank 8, a rocker 9 and a universal joint, the crank 8 and the rocker 9 are both provided with a plurality of connecting holes, one end of the crank 8 is connected with a motor 2 (not shown in the figure) arranged on one of the space frames 1 through a connecting piece 4 and a motor connecting piece 2-1, one end of the rocker 9 is arranged on the other space frame 1 through the connecting piece 4, two ends of a universal joint 13 are respectively arranged on the crank 8 and the rocker 9, and the rotary motion input by the crank 8 is transmitted to the rocker 9 through the space universal joint mechanism.
As shown in fig. 6 and 7, the frame of the teaching experiment table for the spatial mechanism is composed of two three-dimensional frames 1 which are randomly placed, the mechanical mechanism is a spatial sliding rod and universal joint mechanism and comprises a first sliding rod 14, a second sliding rod 15, a universal joint 13 and a crank 8, a plurality of connecting holes are formed in the crank 8, the first sliding rod 14 and the second sliding rod 15 are both cylindrical rods, one end of the first sliding rod 14 is installed on one of the three-dimensional frames 1 through a connecting piece 4, the other end of the first sliding rod is rotatably connected to one end of the universal joint 13, one end of the second sliding rod 15 is connected to the other end of the universal joint 13 through a sleeve 16, the other end of the second sliding rod 15 is fixedly installed on the crank 8, the crank 8 is installed on the other three-dimensional frame 1 through the connecting piece 4, the motor 2 transmits power to the crank 8 through the motor connecting piece 2-1, and the rotary motion input by the crank 8 is converted into reciprocating motion of the first sliding rod 14 along the axis through the spatial sliding rod and the universal joint mechanism.
The outer wall of the sleeve 16 is provided with a vertical connecting column, the sleeve is fixed at the other end of the universal joint 13 through the connecting column, and the second sliding rod 15 penetrates through the sleeve.
Further, a plurality of ribs radiating from the center of the sector to the edge are arranged on the top plate 1-1 or the bottom plate 1-3 of the three-dimensional frame 1 to increase the strength, two edges of the top plate 1-1 are respectively provided with a convex connecting block and a convex connecting groove, and when the three-dimensional frames 1 are spliced to form a circular frame, the adjacent connecting blocks and the adjacent connecting grooves are matched to increase the connecting stability.
The spatial mechanism teaching experiment table provided by the invention can construct different forms of frames through a specially designed three-dimensional frame, is suitable for constructing different spatial mechanisms, widens the functions of the mechanical field teaching experiment table, can overcome the defects that the existing teaching experiment table has single function and cannot realize spatial mechanism movement, can improve the teaching experiment efficiency, stimulates the innovative thinking of students, and has good application value.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A space mechanism teaching experiment table comprises a frame and a mechanical mechanism arranged on the frame, and is characterized in that the frame comprises a plurality of three-dimensional frames, each three-dimensional frame comprises a top plate, a bottom plate and a vertical rod, the top plate and the bottom plate are fan-shaped, the top plate and the bottom plate are arranged in parallel up and down and are vertically connected with a fan-shaped center through the vertical rod, a series of triangular holes are formed in the arc-shaped edge of the top plate, the three-dimensional frames with required number are selected to form the frame according to needs during use, the mechanical mechanism is a space mechanical structure and is arranged on the frame through a connecting piece, a connecting column matched with the triangular holes is arranged at the lower part of the connecting piece, a through hole is formed in the upper part of the connecting piece, the connecting piece is convenient to be connected with a part of the mechanical mechanism, and a motor is arranged on the frame through a motor supporting seat and is used for providing power for the mechanical mechanism; the mechanical mechanism is a space spherical connecting rod mechanism or a space sliding rod and universal joint mechanism, the space spherical connecting rod mechanism comprises an inner ball connecting rod I, an inner ball connecting rod II and an outer ball connecting rod, at the moment, the rack is a circular three-dimensional frame formed by splicing three-dimensional frames, the motor is installed on one three-dimensional frame through a motor supporting seat, one end of the inner ball connecting rod I is connected with an output shaft of the motor through a connecting piece, the other end of the inner ball connecting rod I is connected with one end of the outer ball connecting rod through a bolt and a nut, the other end of the outer ball connecting rod is connected with one end of the inner ball connecting rod II through a bolt and a nut, the other end of the inner ball connecting rod II is rotatably arranged on the rack through the connecting piece, the three connecting rods are spherical connecting rods, the centers of the three connecting rods are coincident, and the motion tracks of all points on the three connecting rods are on a concentric spherical surface; the space slide bar and the universal joint mechanism comprise a first slide bar, a second slide bar, a universal joint and a crank, the rack is composed of two space frames which are randomly placed at the moment, a plurality of connecting holes are formed in the crank, the first slide bar and the second slide bar are cylindrical rods, one end of the first slide bar is installed on one of the space frames through a connecting piece, the other end of the first slide bar is connected to one end of the universal joint in a rotating mode, one end of the second slide bar is connected to the other end of the universal joint through a sleeve, the other end of the second slide bar is fixedly installed on the crank, the crank is installed on the other space frame through the connecting piece, the motor transmits power to the crank, and the rotating motion input by the crank is converted into reciprocating motion of the first slide bar along the axis of the crank through the space slide bar and the universal joint mechanism.
2. The spatial mechanism teaching experiment table as claimed in claim 1, wherein the top plate and the bottom plate of the three-dimensional frame are 120 ° sector plates, the vertical rod is a one-third sector long rod formed by trisecting the central line of the cylindrical rod, when the three-dimensional frames are spliced together, the vertical rod forms a complete cylindrical rod, and the top plate and the bottom plate form a complete circular frame respectively.
3. The spatial mechanism teaching experiment table as claimed in claim 1, wherein a vertical connecting column is arranged on the outer wall of the sleeve, the sleeve is fixed at the other end of the universal joint through the connecting column, and the second sliding rod penetrates through the sleeve.
4. The spatial mechanism teaching experiment table as claimed in claim 1, wherein the top plate or the bottom plate of the space frame is provided with a plurality of ribs radiating from the center of the sector to the edge for increasing the strength.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110267270.9A CN113077706B (en) | 2021-03-11 | 2021-03-11 | Spatial mechanism teaching experiment table |
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| CN202110267270.9A CN113077706B (en) | 2021-03-11 | 2021-03-11 | Spatial mechanism teaching experiment table |
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| CN113077706A CN113077706A (en) | 2021-07-06 |
| CN113077706B true CN113077706B (en) | 2022-12-06 |
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| JP2020091028A (en) * | 2018-12-07 | 2020-06-11 | Ntn株式会社 | Parallel link mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9272226B2 (en) * | 2014-05-06 | 2016-03-01 | Curt Samlaska | Constructible water toy |
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2021
- 2021-03-11 CN CN202110267270.9A patent/CN113077706B/en active Active
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| CN2720546Y (en) * | 2004-09-03 | 2005-08-24 | 蒙运红 | Novel design combined model of mechanism system motion scheme |
| WO2010043187A1 (en) * | 2008-10-14 | 2010-04-22 | Francisco Pacheco | Teaching apparatus |
| WO2017070329A1 (en) * | 2015-10-23 | 2017-04-27 | The Trustees Of The University Of Pennsylvania | Reconfigurable structural member and system |
| CN207197792U (en) * | 2017-04-01 | 2018-04-06 | 中北大学 | Restructural parallel/hybrid mechanism experimental provision component system |
| CN109420351A (en) * | 2017-09-01 | 2019-03-05 | 上海未来伙伴机器人有限公司 | Multifunction conjunction for building blocks connection |
| CN108714887A (en) * | 2018-05-23 | 2018-10-30 | 西安工程大学 | With three-freedom degree spatial parallel structure |
| JP2020091028A (en) * | 2018-12-07 | 2020-06-11 | Ntn株式会社 | Parallel link mechanism |
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| 考虑柔性杆件和间隙球关节的 RSSR 机构的动力学研究;陈旭立;《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅱ辑》;20190115(第2期);第10-11页 * |
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