CN106898240B - Rigid frame member axial compression teaching demonstration system - Google Patents
Rigid frame member axial compression teaching demonstration system Download PDFInfo
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- CN106898240B CN106898240B CN201710283953.7A CN201710283953A CN106898240B CN 106898240 B CN106898240 B CN 106898240B CN 201710283953 A CN201710283953 A CN 201710283953A CN 106898240 B CN106898240 B CN 106898240B
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- clamping groove
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- direction clamping
- seat
- teaching demonstration
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- 230000006835 compression Effects 0.000 title claims abstract description 18
- 238000007906 compression Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 238000004088 simulation Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- 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
- G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a rigid frame member axial compression teaching demonstration system, which comprises a bottom plate, wherein a supporting frame is arranged on the bottom plate, a lower pressing plate is sleeved on the supporting frame in a sliding manner, a clamping self-adaptive device is arranged between the lower pressing plate and the bottom plate, the clamping self-adaptive device comprises two groups of clamping components, the two groups of clamping components are respectively and fixedly arranged on the bottom plate and the lower pressing plate, the clamping components comprise bases arranged on the bottom plate or the lower pressing plate, a twisting seat is arranged on the bases, and a test seat is arranged on the twisting seat.
Description
Technical Field
The invention relates to a teaching demonstration tool, in particular to a rigid frame member axial compression teaching demonstration system.
Background
The steel member is a steel structure combined member which is formed by connecting steel plates, angle steel, channel steel, I-steel, welding or hot rolling H-shaped steel through cold bending or welding through connecting pieces and can bear and transmit load. The steel member system has the comprehensive advantages of light dead weight, industrial manufacture, quick installation, short construction period, good earthquake resistance, quick investment recovery, less environmental pollution and the like, and has the unique advantages of developing in three aspects of high, large and light compared with a reinforced concrete structure, and the steel member system is reasonably and widely applied in the field of building engineering in the global field, particularly developed countries and regions. In the steel structure compression member, different types of deformation buckling can be generated on the axial compression members with different sections under the axial load, and the steel member is easy to be unstable when the axial load is large enough, so that the integral stability is the most important factor for determining the section of the compression member. The volume and weight of the professional steel member axial pressure test equipment are very large, and the special steel member axial pressure test equipment cannot be used for conveniently demonstrating students in the daily teaching process, so that the students can intuitively sense bending deformation and twisting deformation of various steel members when the steel members are axially pressed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a rigid frame member axial compression teaching demonstration system.
The technical proposal is as follows: a rigid frame member axial compression teaching demonstration system is characterized in that: including the bottom plate, be equipped with the support frame on this bottom plate, the sliding sleeve has the holding down plate on the support frame, be equipped with centre gripping self-adaptation device between holding down plate and the bottom plate, this centre gripping self-adaptation device includes two sets of clamping components, and two sets of clamping components are fixed mounting respectively on bottom plate and the holding down plate, clamping components includes the base, and this base fixed mounting is on corresponding bottom plate or holding down plate, be equipped with the twist seat on the base, be equipped with the test seat on the twist seat.
According to the technical scheme, in daily teaching, the steel member simulation pieces with various sections can be manufactured by using wood strips, then two ends of the steel member are respectively arranged on the test seats of the two groups of clamping assemblies, pressure is applied to the simulation pieces in the axial direction, the simulation pieces are twisted to deform after being pressed in the axial direction, the two ends of the simulation pieces are twisted through the twisting seats of the clamping assemblies to adapt to the twisting deformation, and the twisting deformation of the simulation pieces is visually presented, so that students can observe and recognize the simulation pieces conveniently.
As preferable: a supporting plate is arranged on a supporting frame above the lower pressing plate, a lower pressing sleeve with internal threads is vertically fixedly clamped and embedded in the supporting plate, and a vertical lower pressing rod is connected with the internal threads of the lower pressing sleeve. By adopting the design, the lower pressing rod can be rotated to press the lower pressing plate to apply axial pressure to the simulation piece, so that labor is saved.
The support frame comprises at least three vertical support rods, sliding holes are formed in the lower pressing plate, corresponding to the vertical support rods, sliding bearings are respectively arranged in the sliding holes, the lower ends of the vertical support rods are fixedly connected with the bottom plate, and the upper ends of the vertical support rods penetrate through the corresponding sliding bearings and are fixedly connected with the support plate. By adopting the scheme, the sliding bearing greatly reduces the friction force between the lower pressing plate and the vertical supporting rod in the pressing process, the pressing is easier, and the abrasion is smaller.
The twisting seat comprises a fixed seat, the fixed seat is arranged on the base, a twisting groove is formed in the top of the fixed seat, a rotating bearing is arranged in the twisting groove, an outer ring of the rotating bearing is fixedly clamped in the twisting groove through a clamping piece, an inner ring of the rotating bearing can freely rotate relative to the fixed seat, and a test seat mounting groove is formed in the inner region of the inner ring. By adopting the design, when the simulation piece is subjected to axial pressure to generate distortion deformation, the inner ring of the bearing rotates, and students can directly observe the distortion deformation.
The clamping piece comprises at least one clamping strip, the clamping strip is axially arranged on the outer wall of the outer ring, a clamping groove is correspondingly formed in the inner wall of the twisting groove, and the clamping strip is clamped in the corresponding clamping groove. By adopting the scheme, the rotary bearing is pushed into the twisting groove after the clamping strip is aligned with the corresponding clamping groove, so that the installation work is finished, and the operation is simple and quick.
The test seat comprises a mounting seat, a mounting rod is arranged at the bottom of the mounting seat and inserted into the mounting groove of the test seat, a strip-shaped first x-direction clamping groove and a strip-shaped first y-direction clamping groove are formed in the top surface of the mounting seat, and the first x-direction clamping groove and the first y-direction clamping groove are mutually intersected and communicated to form a cross shape. The test seat with the design can be suitable for a simulation piece with a cross section in a cross shape, and also can be suitable for a simulation piece with a T-shaped cross section, so that the application range of the test seat is effectively improved.
At least one jacking screw is arranged on the inner ring in a penetrating way through radial threads, and one end of the jacking screw stretches into the test seat mounting groove to radially jack the mounting rod. The fixing or the dismounting of the mounting seat can be completed by adopting the design and adjusting the tightness of the jacking screw, and the mounting is simple and convenient to operate.
The top surface of the mounting seat is provided with a second x-direction clamping groove and a third x-direction clamping groove which are mutually parallel to the first x-direction clamping groove, the second x-direction clamping groove and the third x-direction clamping groove are respectively positioned at two sides of the first x-direction clamping groove, and the second x-direction clamping groove and the third x-direction clamping groove are respectively communicated with the first y-direction clamping groove in a crossing manner. The test seat adopting the design can also adapt to the simulation piece with the H-shaped or I-shaped cross section, thereby further improving the application range of the test seat.
The top surface of the mounting seat is provided with a second y-direction clamping groove and a third y-direction clamping groove which are mutually parallel to the first y-direction clamping groove, the second y-direction clamping groove and the third y-direction clamping groove are respectively positioned at two sides of the first y-direction clamping groove, and the second y-direction clamping groove and the third y-direction clamping groove are respectively communicated with the first x-direction clamping groove in a crossing manner. The design is skillfully adopted to select the corresponding x-direction clamping groove combination and y-direction clamping groove combination, so that the device can adapt to the H-shaped or I-shaped simulation parts with different models and sizes.
The first x-direction clamping groove, the second x-direction clamping groove, the first y-direction clamping groove and the second y-direction clamping groove are all equal in groove width, the groove widths of the first x-direction clamping groove, the second x-direction clamping groove, the first y-direction clamping groove and the second y-direction clamping groove are smaller than the third y-direction clamping groove, and the third y-direction clamping groove is smaller than the third x-direction clamping groove. By adopting the design, as the widths of the third y-direction clamping groove and the third x-direction clamping groove are wider, the cross section widths of different simulation pieces can be properly adjusted through the third y-direction clamping groove and the third x-direction clamping groove when the cross section widths of the different simulation pieces are different, so that the simulation pieces with different widths can be fixed on the mounting seat.
The beneficial effects are that: the invention has the beneficial effects that in daily teaching, steel member simulators with various sections can be manufactured by using wood strips, different clamping grooves are selected to install and fix the simulators according to different structural forms of the simulators, then pressure is applied to the simulators in the axial direction, the simulators are subjected to torsion deformation after being subjected to axial compression and are adapted to the torsion deformation through rotating the rotating bearing, students can intuitively observe and recognize the axial compression deformation process of the simulators.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of a clamping assembly;
FIG. 3 is a schematic perspective view of a twist base;
FIG. 4 is a schematic perspective view of a fixing base;
FIG. 5 is a schematic perspective view of a rotating member;
fig. 6 is a schematic perspective view of a test socket.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in FIG. 1, a rigid frame member axial pressurized teaching demonstration system comprises a bottom plate 1, a support frame is arranged on the bottom plate 1, a lower pressing plate 2 is sleeved on the support frame in a sliding manner, a clamping self-adapting device is arranged between the lower pressing plate 2 and the bottom plate 1, the clamping self-adapting device comprises two groups of clamping components 6, the two groups of clamping components 6 are respectively and fixedly installed on the bottom plate 1 and the lower pressing plate 2, the clamping components comprise a base A, the base A is fixedly installed on the corresponding bottom plate 1 or the lower pressing plate 2, a twisting seat B is arranged on the base A, and a test seat C is arranged on the twisting seat B.
The support frame includes four vertical support rods 7, four vertical support rods 7 are rectangular array form and distribute, correspond vertical support rods 7 on the holding down plate 2 and be equipped with the slide hole, be equipped with slide bearing 10 in the slide hole respectively, the lower extreme of vertical support rods 7 with bottom plate 1 fixed connection, the upper end of vertical support rods 7 wears out corresponding slide bearing 10 back is connected with same backup pad 3, and vertical fixation inlay card has the push down sleeve 5 of taking the internal screw thread on this backup pad 3, and this push down sleeve 5 internal screw thread is connected with vertical push down pole 4, push down pole 4 lower extreme wears out push down be connected with pressure piece 8 behind sleeve 5, push down pole 4 upper end wear out be connected with behind the push down sleeve 5 and rotate hand wheel 9.
As shown in fig. 2-5, the twist seat B includes a fixed seat B01, the base a is a universal spherical hinge, a fixed sleeve B06 with internal threads is provided at the bottom of the fixed seat B01, the fixed sleeve B06 and the fixed seat B01 are integrally formed and made of plastic, an external thread is provided at the upper part of a spherical pin of the universal spherical hinge, the fixed sleeve B06 is connected with the spherical pin by threads, a twist groove B02 is provided at the top of the fixed seat B01, a rotary bearing B03 is provided in the twist groove B02, an outer ring B031 of the rotary bearing B03 is fixedly clamped in the twist groove B02 by a clamping piece, the clamping piece includes four clamping strips B04, all the clamping strips B04 are axially arranged on the outer wall of the outer ring B031, the clamping strips B04 and the outer ring B031 are integrally formed, a clamping groove B07 is correspondingly arranged on the inner wall of the twist groove B02, a jack-up screw is arranged at the inner side of the jack-up groove B05, a jack-down screw is arranged at the top of the jack-down seat C05, a jack-up screw is arranged at the jack-down end of the jack B01, and the jack-up screw is mounted at the jack plug seat C05.
As shown in fig. 6, the material of the mounting seat C01 is plastic, the mounting seat C01 is cylindrical, a first strip-shaped x-direction clamping groove C02 and a first strip-shaped y-direction clamping groove C03 are formed in the top surface of the mounting seat C01, and the first x-direction clamping groove C02 and the first y-direction clamping groove C03 are mutually crossed and communicated to form a cross shape.
The top surface of the mounting seat C01 is provided with a second x-direction clamping groove C05 and a third x-direction clamping groove C06 which are parallel to the first x-direction clamping groove C02, wherein the total of the second x-direction clamping grooves C05 is three, the spacing between every two adjacent second x-direction clamping grooves C05 is equal, the third x-direction clamping groove C06 and the second x-direction clamping groove C05 are respectively positioned at two sides of the first x-direction clamping groove C02, and the middle parts of the second x-direction clamping groove C05 and the third x-direction clamping groove C06 are respectively communicated with the first y-direction clamping groove C03 in a crossing manner; the top surface of the mounting seat C01 is also provided with a second y-direction clamping groove C07 and a third y-direction clamping groove C08 which are parallel to the first y-direction clamping groove C03, wherein the second y-direction clamping grooves C07 are three in total, the second y-direction clamping grooves C07 are uniformly distributed, the second y-direction clamping grooves C07 and the third y-direction clamping grooves C08 are respectively positioned on two sides of the first y-direction clamping groove C03, and the middle parts of the second y-direction clamping grooves C07 and the third y-direction clamping grooves C08 are respectively communicated with the first x-direction clamping grooves C02 in a crossing manner.
The second x-direction clamping groove C05 and the third x-direction clamping groove C06 are positioned on the mounting seat C01 between the second y-direction clamping groove C07 and the third y-direction clamping groove C08, the first x-direction clamping groove C02, the second x-direction clamping groove C05, the first y-direction clamping groove C03 and the second y-direction clamping groove C07 are all equal in groove width, the groove widths of the first x-direction clamping groove C05 and the third y-direction clamping groove C06 are smaller than the width of the third y-direction clamping groove C08, the groove widths of the third y-direction clamping groove C08 are smaller than the groove width of the third x-direction clamping groove C06, the lengths of the second x-direction clamping groove C05, the third x-direction clamping groove C06, the second y-direction clamping groove C07 and the third y-direction clamping groove C08 are all equal, the lengths of the first x-direction clamping groove C02 and the first y-direction clamping groove C03 are equal, and the lengths of the first x-direction clamping groove C02 are larger than the length of the second x-direction clamping groove C05.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. A rigid frame member axial pressurized teaching demonstration system is characterized in that: the automatic clamping device comprises a bottom plate (1), wherein a supporting frame is arranged on the bottom plate (1), a lower pressing plate (2) is sleeved on the supporting frame in a sliding manner, a clamping self-adapting device is arranged between the lower pressing plate (2) and the bottom plate (1), the clamping self-adapting device comprises two groups of clamping components (6), the two groups of clamping components (6) are respectively and fixedly arranged on the bottom plate (1) and the lower pressing plate (2), the clamping components comprise a base (A), the base (A) is fixedly arranged on the corresponding bottom plate (1) or the lower pressing plate (2), a twisting seat (B) is arranged on the base (A), and a test seat (C) is arranged on the twisting seat (B);
the twisting seat (B) comprises a fixed seat (B01), the fixed seat (B01) is arranged on the base (A), a twisting groove (B02) is formed in the top of the fixed seat (B01), a rotating bearing (B03) is arranged in the twisting groove (B02), an outer ring (B031) of the rotating bearing (B03) is fixedly clamped in the twisting groove (B02) through a clamping piece, and an inner ring (B032) of the rotating bearing can freely rotate relative to the fixed seat (B01), and a test seat mounting groove is formed in the inner area of the inner ring (B032);
the test seat (C) comprises a mounting seat (C01), a mounting rod (C04) is arranged at the bottom of the mounting seat (C01), the mounting rod (C04) is inserted into the mounting groove of the test seat, a strip-shaped first x-direction clamping groove (C02) and a strip-shaped first y-direction clamping groove (C03) are formed in the top surface of the mounting seat (C01), and the first x-direction clamping groove (C02) and the first y-direction clamping groove (C03) are mutually crossed and communicated to form a cross shape;
the base (A) is a universal spherical hinge, a fixing sleeve (B06) with internal threads is arranged at the bottom of the fixing seat (B01), the fixing sleeve (B06) and the fixing seat (B01) are integrally formed and made of plastics, external threads are arranged on the upper portion of a spherical pin of the universal spherical hinge, and the fixing sleeve (B06) is in threaded connection with the spherical pin.
2. The rigid frame member axial compression teaching demonstration system of claim 1, wherein: the support frame of holding down plate (2) top is equipped with backup pad (3), and vertical fixed block has embedded on this backup pad (3) to have the internal thread and pushes down sleeve (5), and this internal thread that pushes down sleeve (5) is connected with vertical depression bar (4).
3. The rigid frame member axial compression teaching demonstration system of claim 2, wherein: the support frame includes three piece at least vertical support pole (7), correspond vertical support pole (7) on holding down plate (2) and be equipped with the slide hole, be equipped with slide bearing (10) in the slide hole respectively, the lower extreme of vertical support pole (7) with bottom plate (1) fixed connection, the upper end of vertical support pole (7) wear out behind corresponding slide bearing (10) with backup pad (3) fixed connection.
4. The rigid frame member axial compression teaching demonstration system of claim 1, wherein: the clamping piece comprises at least one clamping strip (B04), the clamping strip (B04) is axially arranged on the outer wall of the outer ring (B031), a clamping groove (B07) is correspondingly formed in the inner wall of the twisting groove (B02), and the clamping strip (B04) is clamped in the corresponding clamping groove (B07).
5. The rigid frame member axial compression teaching demonstration system of claim 1, wherein: at least one jacking screw (B05) is arranged on the inner ring (B032) in a penetrating way through radial threads, and one end of the jacking screw (B05) stretches into the test seat mounting groove to radially jack the mounting rod (C04).
6. The rigid frame part axial compression teaching demonstration system according to claim 1 or 5, wherein: the mounting seat is characterized in that a second x-direction clamping groove (C05) and a third x-direction clamping groove (C06) which are parallel to the first x-direction clamping groove (C02) are formed in the top surface of the mounting seat (C01), the second x-direction clamping groove (C05) and the third x-direction clamping groove (C06) are respectively located at two sides of the first x-direction clamping groove (C02), and the second x-direction clamping groove (C05) and the third x-direction clamping groove (C06) are respectively communicated with the first y-direction clamping groove (C03) in a crossing mode.
7. The rigid frame part axial compression teaching demonstration system of claim 6, wherein: the mounting seat is characterized in that a second y-direction clamping groove (C07) and a third y-direction clamping groove (C08) which are parallel to the first y-direction clamping groove (C03) are formed in the top surface of the mounting seat (C01), the second y-direction clamping groove (C07) and the third y-direction clamping groove (C08) are respectively located at two sides of the first y-direction clamping groove (C03), and the second y-direction clamping groove (C07) and the third y-direction clamping groove (C08) are respectively communicated with the first x-direction clamping groove (C02) in a crossing mode.
8. The rigid frame part axial compression teaching demonstration system of claim 7, wherein: the first x is to draw-in groove (C02), second x is to draw-in groove (C05), first y is to draw-in groove (C03) and second y is to the slot width of draw-in groove (C07) equal, and their slot width all is less than the width of third y to draw-in groove (C08), the slot width of third y to draw-in groove (C08) is less than the slot width of third x to draw-in groove (C06).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283953.7A CN106898240B (en) | 2017-04-26 | 2017-04-26 | Rigid frame member axial compression teaching demonstration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710283953.7A CN106898240B (en) | 2017-04-26 | 2017-04-26 | Rigid frame member axial compression teaching demonstration system |
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| Publication Number | Publication Date |
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| CN106898240A CN106898240A (en) | 2017-06-27 |
| CN106898240B true CN106898240B (en) | 2023-11-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106952543B (en) * | 2017-04-26 | 2023-12-22 | 重庆科技学院 | Steel member axial compression presentation mechanism self-adaptation device |
| CN112196509B (en) * | 2020-10-15 | 2022-04-22 | 重庆科技学院 | Full-size multi-cluster flexible crack simulation device |
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| CN106898240A (en) | 2017-06-27 |
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