CN113077706A - Spatial mechanism teaching experiment table - Google Patents
Spatial mechanism teaching experiment table Download PDFInfo
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- CN113077706A CN113077706A CN202110267270.9A CN202110267270A CN113077706A CN 113077706 A CN113077706 A CN 113077706A CN 202110267270 A CN202110267270 A CN 202110267270A CN 113077706 A CN113077706 A CN 113077706A
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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 and are vertically arranged in parallel and vertically connected with the center of the fan shape through the upright rod, when in use, 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, and the space mechanical structure 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, the invention can construct different types of frames through the specially designed three-dimensional frames, is suitable for constructing different space mechanisms, overcomes the defects that the existing teaching experiment table has single function and can not realize the, arouse the innovative thinking of students and have good application value.
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 show the motion of mechanical mechanism, makes things convenient for the student to understand and study, tempers student's power of working, 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 space mechanism teaching experiment table, which has the advantages that a rack is detachable, has various combinations and transformations, is convenient to build and can present various space mechanisms.
In order to achieve the purpose, the invention adopts the technical scheme that:
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 fan-shaped plates, the vertical rods are one-third fan-shaped long rods formed by cylinder rods in a quasi-trisection mode by taking the center line as a quasi-trisection mode, when the three-dimensional frames are spliced together, the vertical rods form a complete cylinder 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 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 second inner ball connecting rod through a bolt and a nut, the other end of the second inner ball connecting rod is rotatably arranged on the rack through a connecting piece, the three connecting rods are spherical connecting rods, the centers of.
Further, the space 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 arranged 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 arranged 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 space ball joint mechanism.
Further, the space universal joint mechanism comprises a crank, a rocker and a universal joint, the rack comprises two space 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 space frames through a connecting piece, one end of the rocker is arranged on the other space 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.
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, so that 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 a rack with a circular structure, so that a 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 block diagram of the space slide 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: 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.
A space mechanism teaching experiment table comprises a frame and a mechanical mechanism arranged on the frame, wherein the frame comprises a plurality of three-dimensional frames 1, as shown in figure 1, each three-dimensional frame 1 comprises a top plate 1-1, a bottom plate 1-3 and upright rods 1-2, the top plate 1-1 and the bottom plate 1-3 are fan-shaped, the top plate 1-1 and the bottom plate 1-3 are arranged in parallel up and down and are vertically connected with a fan-shaped center through the upright rods 1-2, a series of triangular holes are formed in the arc-shaped edge of the top plate 1-1, the frame formed by the three-dimensional frames 1 has detachability, when the space mechanism is used, the required number of the three-dimensional frames 1 are selected according to needs to form the frame, the mechanical mechanism is arranged on the frame through a connecting piece 4, the structure of the connecting piece 4 is as shown in figure 8, a connecting column matched with the, one of the three-dimensional frames 1 of the rack is provided with a motor 2 through a motor support seat 3 for providing power for a mechanical mechanism, the motor 2 can be a small-sized stepping motor, the motor 2 is connected with a mechanical part through a motor connecting piece 2-1 and a connecting piece 4 for inputting power for the mechanical part, and the structure of the motor connecting piece 2-1 is shown in fig. 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 through the combination of different frame forms and different mechanical mechanisms, and space motion 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, a mechanical mechanism is a spatial spherical connecting rod mechanism, and comprises an inner ball connecting rod I5, an inner ball connecting rod II 6 and an outer ball connecting rod 7, at this time, a motor 2 is installed on one three-dimensional frame 1 through a motor supporting seat 3, one end of the inner ball connecting rod I5 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 is connected with one end of the outer ball connecting rod 7 through a bolt and a nut, the other end of the outer ball connecting rod 7 is connected with one end of the inner ball connecting rod II 6 through a bolt and a nut, the other end of the inner ball connecting rod II 6 is rotatably arranged on the other three-dimensional frame 1 of the frame through a connecting piece 4, the three connecting rods forming the spatial spherical connecting rod mechanism are spherical connecting rods, the centers, the motion input by the inner ball connecting rod I5 drives the outer ball connecting rod 7 and the inner ball connecting rod II 6 to realize the spatial motion of the mechanism.
As shown in fig. 4, a spatial mechanism teaching experiment table, a rack is composed of two three-dimensional frames 1 placed at will, 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 provided with a plurality of connecting holes 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 the 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.
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 spatial mechanism teaching experiment table comprises a frame composed of two three-dimensional frames 1 which are randomly placed, a mechanical mechanism is a spatial slide bar and universal joint mechanism which comprises a slide bar I14, a slide bar II 15, a universal joint 13 and a crank 8, the crank 8 is provided with a plurality of connecting holes, the slide bar I14 and the slide bar II 15 are both cylindrical rods, one end of the first sliding rod 14 is mounted on one of the three-dimensional frames 1 through the 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 the sleeve 16, the other end of the second sliding rod 15 is fixedly mounted on the crank 8, the crank 8 is mounted 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 rotary motion input by the crank 8 is transmitted and converted into reciprocating motion of the first sliding rod 14 along the axis of the first sliding rod through the space.
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 (9)
1. The utility model provides a space mechanism teaching experiment platform, includes the frame and establishes the mechanical mechanism in the frame, its characterized in that, the frame includes a plurality of space frames, and every space frame includes roof, bottom plate and pole setting, roof and bottom plate are fan-shaped, and parallel arrangement from top to bottom between them connects fan-shaped center perpendicularly through the pole setting, 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.
2. The spatial mechanism teaching experiment table as claimed in claim 1, wherein the mechanical mechanism comprises a spatial spherical link mechanism, a spatial spherical joint mechanism, a spatial universal joint mechanism or a spatial slide bar and universal joint mechanism, which are formed by different combinations of a plurality of spherical links, cranks, rockers, spherical joints, universal joints, slide bars and connecting bars.
3. The spatial mechanism teaching experiment table as claimed in claim 2, wherein the top plate and the bottom plate of the space frame are 120 ° sector plates, the vertical rod is a one-third sector long rod formed by cylinder rods in a quasi-trisection manner with a central line, when three space frames are spliced together, the vertical rod forms a complete cylinder rod, and the top plate and the bottom plate form a complete circular frame respectively.
4. The spatial mechanism teaching experiment table as claimed in claim 3, wherein the spatial spherical link mechanism comprises a first inner spherical link, a second inner spherical link and a second outer spherical link, in this case, the frame is a circular three-dimensional frame formed by splicing three-dimensional frames, the motor is mounted on one of the three-dimensional frames through a motor support seat, one end of the first inner spherical link is connected with an output shaft of the motor through a connecting piece, the other end of the first inner spherical link is connected with one end of the second outer spherical link through a bolt and a nut, the other end of the second outer spherical link is connected with one end of the second inner spherical link through a bolt and a nut, the other end of the second inner spherical link is rotatably arranged on the frame through a connecting piece, the three links are spherical links, the centers of the three links coincide, and the movement trajectories of all points on.
5. The spatial mechanism teaching experiment table as claimed in claim 2, wherein the spatial ball joint mechanism is composed of a crank, a rocker, two ball joints and a ball joint connecting rod, the frame is composed of two three-dimensional frames which are randomly placed, the crank and the rocker are respectively provided with a plurality of connecting holes, one end of the crank is connected with a motor arranged on one of the three-dimensional frames through a connecting piece, the crank is provided with a first ball joint, the first ball joint is connected with a second ball joint through the ball joint connecting rod, the second ball joint is arranged on the rocker, the other end of the rocker is arranged on the other three-dimensional frame through the connecting piece, and the rotary motion input by the crank is transmitted to the rocker through the spatial ball joint mechanism.
6. The spatial mechanism teaching experiment table as claimed in claim 2, wherein the spatial universal joint mechanism is composed of a crank, a rocker and a universal joint, the frame is composed of two three-dimensional frames which are randomly arranged, the crank and the rocker are respectively provided with a plurality of connecting holes, 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 a connecting piece, two ends of the universal joint are respectively arranged on the crank and the rocker, and the rotary motion input by the crank is transmitted to the rocker through the spatial universal joint mechanism.
7. The spatial mechanism teaching experiment table as claimed in claim 2, wherein the spatial sliding rod and universal joint mechanism comprises a first sliding rod, a second sliding rod, a universal joint and a crank, the frame is composed of two three-dimensional frames which are randomly arranged, the crank is provided with a plurality of connecting holes, the first sliding rod and the second sliding rod are both cylindrical rods, one end of the first sliding rod is mounted on one of the three-dimensional frames through a connecting piece, the other end of the first sliding rod is rotatably connected to one end of the universal joint, one end of the second sliding rod is connected to the other end of the universal joint through a sleeve, the other end of the second sliding rod is fixedly mounted on the crank, the crank is mounted on the other three-dimensional frame through a connecting piece, the motor transmits power to the crank, and the rotational motion input by the crank is transmitted to the first sliding rod and.
8. The spatial mechanism teaching experiment table as claimed in claim 7, wherein the outer wall of the sleeve is provided with a vertical connecting column, 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.
9. 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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| 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 true CN113077706A (en) | 2021-07-06 |
| CN113077706B CN113077706B (en) | 2022-12-06 |
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2021
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