CN112129630B - Horizontal stress testing device for working platform - Google Patents
Horizontal stress testing device for working platform Download PDFInfo
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- CN112129630B CN112129630B CN202010952876.1A CN202010952876A CN112129630B CN 112129630 B CN112129630 B CN 112129630B CN 202010952876 A CN202010952876 A CN 202010952876A CN 112129630 B CN112129630 B CN 112129630B
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- working platform
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- bottom plate
- rack
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- 238000009662 stress testing Methods 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 14
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 19
- 239000000178 monomer Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a horizontal stress testing device for a working platform, which comprises a base, a platform fixing device, a loading device and an acquisition control system, wherein the loading device is connected with the base; the base comprises a first fixing seat, a second fixing seat, a first lead screw and a first sliding rail; the loading device comprises a left force application device and a right force application device which are arranged on two sides of the working platform to be tested, the left force application device comprises a sliding bottom plate which is arranged on the first sliding rail, the sliding bottom plate is in sliding fit with the first sliding rail, an adjusting bracket is arranged on the sliding bottom plate, one side of the adjusting bracket, corresponding to the working platform to be tested, is provided with a monitoring sensing device, and a bottom plate driving mechanism for pushing the sliding bottom plate to slide along the first sliding rail is arranged on the sliding bottom plate. The invention can test the stress conditions of the working platform to be tested at different heights, can test the stress states of the two sides of the working platform to be tested bearing thrust or pressure or bearing thrust and pressure at the same time, can test the stability of the working platform in multiple aspects, and has wider application range and stronger practicability.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a horizontal stress testing device for a working platform.
Background
At present, when the stability of a working platform product is detected, such as a composite material fast-assembling scaffold, a lifting type maintenance platform and the like, a certain horizontal force is applied to the horizontal direction of a working surface. At present, a person climbs to a position with the same height of a working platform, and a chest expander is used for applying a certain force along the horizontal direction to test. The defects are that: 1. in the process of testing, a person needs to exert force at a high place, so that a certain danger exists; 2. once the tested platform collapses, surrounding equipment or personnel are easily damaged; 3. only the tensile force born by the horizontal direction of the working platform can be tested, and the horizontal thrust force born by the working platform cannot be tested; 4. the working platform cannot be tested for a force value of suddenly bearing pushing force or pulling force and a stressed state; 5. the tensile force value is inaccurate.
Disclosure of Invention
The invention aims to provide a horizontal stress testing device for a working platform, aiming at the defects of the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
the horizontal stress testing device for the working platform comprises a base, a platform fixing device, a loading device and an acquisition control system, wherein the platform fixing device is arranged on the base and used for fixing the working platform to be tested, the loading device is arranged on the base and used for loading the working platform to be tested, and the acquisition control system is connected with the loading device; the base comprises a first fixed seat, a second fixed seat, a first lead screw rotatably arranged between the first fixed seat and the second fixed seat, and first sliding rails arranged on two sides of the first lead screw; the loading device comprises a left force application device and a right force application device which are arranged on two sides of the working platform to be tested, the left force application device and the right force application device are identical in structure, the left force application device comprises a sliding bottom plate arranged on the first sliding rail, the sliding bottom plate is in sliding fit with the first sliding rail, an adjusting support is arranged on the sliding bottom plate, a monitoring sensing device is arranged on one side, corresponding to the working platform to be tested, of the adjusting support, and a bottom plate driving mechanism for pushing the sliding bottom plate to slide along the first sliding rail is arranged on the sliding bottom plate.
Further, the monitoring sensing device comprises a shell, a servo motor, a gearbox, a first rack, a tension sensor and a hook, wherein the shell is arranged on the adjusting support in a sliding mode, the servo motor is arranged outside the shell, the gearbox is arranged in the shell, a power output end of the servo motor is in transmission connection with an input end of the gearbox, a rack hole is formed in the shell, the first rack is horizontally arranged, one end of the first rack is inserted into the rack hole and meshed with a ranging gear of the gearbox, the other end of the first rack is connected with a working platform to be measured through the hook, and the tension sensor is arranged between the first rack and the hook.
Further, a second rack is vertically arranged on the adjusting bracket and meshed with the sliding gear of the gearbox.
Further, second sliding rails are arranged on the adjusting support and on two sides of the second rack, sliding grooves matched with the second sliding rails are formed in the shell, and the shell is in sliding connection with the second sliding rails.
Further, the bottom plate driving mechanism is a screw rod lifter, and the screw rod lifter is connected with the first screw rod.
Further, the adjusting support comprises a plurality of inserting frame monomers, each inserting frame monomer is formed by building four vertical rods and a cross rod, plugs are arranged at the bottoms of the vertical rods, jacks are arranged at the bottoms of the vertical rods, and adjacent inserting frame monomer plugs are fixedly matched with the jacks in an inserting mode.
Further, the platform fixing device comprises a third fixing seat, a bidirectional screw rod rotatably arranged on the third fixing seat, a driving motor for driving the bidirectional screw rod to rotate and a sliding clamp slidably arranged on the bidirectional screw rod and used for clamping the working platform to be tested; the sliding clamp comprises a left clamp and a right clamp, the left clamp is connected with a bidirectional screw through a first screw nut, the right clamp is connected with the bidirectional screw through a second screw nut, and the driving motor drives the bidirectional screw to rotate so that the left clamp and the right clamp move in opposite directions or in opposite directions.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
according to the invention, the sliding gear is rotated by the servo motor to drive the drag hook to move up and down, the connection position of the drag hook and the working platform to be tested is adjusted, the height bearing capacity of different positions of the working platform to be tested is tested, and the left force application device and the right force application device are controlled to apply pulling force or pushing force to the working platform to be tested by rotating the distance measuring gear by the servo motor; and the stress value of the working platform to be tested is transmitted to a computer for recording through a tension sensor and the horizontal displacement value of the working platform to be tested is transmitted to the computer through an encoder. The invention can reduce manual operation and improve the safety, the working efficiency and the test accuracy in the test process; the invention can test the stress conditions of the working platform to be tested at different heights, can test the stress states of the two sides of the working platform to be tested bearing thrust and pressure or bearing thrust and pressure simultaneously, can test the stability of the working platform in multiple aspects, and has wider application range and stronger practicability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic diagram of a monitoring sensor device according to the present invention;
FIG. 4 is a schematic view of a platform fixing device according to the present invention.
In the figure: 1. a working platform to be tested; 2. a first fixing seat; 3. the second fixing seat; 4. a first lead screw; 5. a first slide rail; 6. a sliding bottom plate; 7. adjusting the bracket; 8. a bottom plate driving mechanism; 9. a housing; 10. a servo motor; 11. a gearbox; 12. a first rack; 13. a tension sensor; 14. a hook; 15. a ranging gear; 16. a second rack; 17. a sliding gear; 18. a second slide rail; 19. a chute; 20. a third fixing seat; 21. a bidirectional screw rod; 22. a driving motor; 23. a left clamp; 24. a right clamp; 25. a first lead screw nut; 26. and a second lead screw nut.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
1-4, the horizontal stress testing device for the working platform comprises a base, a platform fixing device, a loading device and an acquisition control system, wherein the platform fixing device is arranged on the base and used for fixing the working platform 1 to be tested, the loading device is arranged on the base and used for loading the working platform 1 to be tested, and the acquisition control system is connected with the loading device;
the base comprises a first fixed seat 2 and a second fixed seat 3 which are arranged on two sides of the working platform 1 to be tested, a first lead screw 4 which is rotatably arranged between the first fixed seat 2 and the second fixed seat 3, and a first sliding rail 5 which is arranged on two sides of the first lead screw 4, wherein the first lead screw 4 and the first sliding rail 6 are positioned below the working platform 1 to be tested; the loading device comprises a left force application device and a right force application device which are arranged on two sides of the working platform 1 to be tested, the left force application device and the right force application device are identical in structure, the left force application device comprises a sliding bottom plate 6 arranged on a first sliding rail 5, a guide groove is formed in the first sliding rail, a guide bar matched with the guide groove is arranged on the lower end face of the sliding bottom plate 6, the sliding bottom plate 6 is in sliding fit with the first sliding rail 5, an adjusting bracket 7 is arranged on the sliding bottom plate 6, a monitoring sensing device is arranged on one side of the adjusting bracket 7 corresponding to the working platform 1 to be tested, a bottom plate driving mechanism 8 for pushing the sliding bottom plate 6 to slide along the first sliding rail 5 is arranged on the sliding bottom plate 6, the bottom plate driving mechanism 8 is a screw lifter, the screw lifter is connected with the first screw 4, and slides back and forth on the first screw 4 through the screw lifter to drive the adjusting bracket 7 and the monitoring sensing device on the adjusting bracket to apply pulling force or pushing force to the working platform 1 to be tested.
Further, the monitoring sensing device comprises a shell 9, a servo motor 10, a gearbox 11, a first rack 12, a tension sensor 13 and a hook 14 which are arranged on the adjusting bracket 7 in a vertical sliding mode, the shell 9 faces to one end opening of the adjusting bracket, the servo motor 10 is arranged outside the shell 9, the gearbox 11 is arranged in the shell 9, a power output end of the servo motor 10 is in transmission connection with an input end of the gearbox 11, a rack hole is formed in the shell 9, the first rack 12 is provided with a rack with grooves and is matched with the rack hole and horizontally arranged, one end of the first rack 12 is inserted into the rack hole to be meshed with a ranging gear 15 of the gearbox 11, the other end of the first rack 12 is connected with the working platform 1 to be tested through the hook 14, and the tension sensor 13 is arranged between the first rack 12 and the hook 14.
Further, a second rack 16 is vertically arranged on the adjusting bracket 7, the second rack 16 is meshed with a sliding gear 17 of the gearbox 11, and the sliding gear 17 of the gearbox 11 is driven to rotate by the servo motor 10, so that the monitoring sensing device is driven to slide up and down along the second rack, the connection position with the working platform 1 to be tested is adjusted, and the state after stress at different positions of the working platform 1 to be tested can be tested.
Further, a gear shifting structure is arranged in the gearbox, the distance measuring gear 15 and the sliding gear 17 can be driven to rotate respectively, and the working principle of the gearbox 11 is the same as that of an automobile gearbox, and the details are not repeated here.
Further, second sliding rails 18 are arranged on the adjusting support 7 and on two sides of the second rack 16, sliding grooves 19 matched with the second sliding rails 18 are arranged on the shell 9, and the shell 9 is in sliding connection with the second sliding rails 18.
Further, the data acquisition control system comprises a computer and a control box, the tension sensor 13 and the control box are connected with the computer, a power supply supplies power to the control box, and the control box is in control connection with a servo motor, a screw rod lifter and a driving motor.
Further, an encoder is arranged in the gearbox, the encoder is electrically connected with a computer, the number of turns of the rotating shaft of the servo motor 10 is tested through the encoder, and the number of turns is transmitted to the computer for analysis to obtain the distance of the transverse movement of the distance measuring gear 15.
Further, adjust support 7 includes a plurality of grafting frame monomers, grafting frame monomer is built by four pole setting and four horizontal poles and is formed, and four horizontal poles set up in four pole setting middle parts, form rectangular structure, the bottom of pole setting sets up the plug, the bottom of pole setting sets up the jack, and adjacent grafting frame free plug is pegged graft fixedly with the jack cooperation, can be according to the high and the test height of work platform that awaits measuring, the high of installation regulation support 7.
Further, the platform fixing device comprises a U-shaped third fixing seat 20, a bidirectional screw rod 21 rotatably arranged on the third fixing seat 20, a driving motor 22 for driving the bidirectional screw rod 21 to rotate, and a sliding clamp slidably arranged on the bidirectional screw rod 21 and used for clamping the working platform 1 to be tested; the sliding clamp comprises a left clamp 23 and a right clamp 24, the left clamp 23 is connected with the bidirectional screw 21 through a first screw nut 25, the right clamp 24 is connected with the bidirectional screw 21 through a second screw nut 26, and the bidirectional screw 21 is driven to rotate through a driving motor 22, so that the left clamp 23 and the right clamp 24 move oppositely or reversely.
Test working principle (procedure): according to the invention, the lead screw lifter slides on the first sliding rail, the position distance between the loading device and the working platform to be tested is adjusted, the sliding gear is rotated by the servo motor to drive the hook to move up and down, the height of the connecting position of the hook and the working platform to be tested is adjusted, the bearing capacity of different positions of the working platform to be tested is tested, and then the distance measuring gear is rotated by the servo motor to control the left force application device and the right force application device to apply pulling force or pushing force to the working platform to be tested; and the stress value of the working platform to be tested and the horizontal displacement value of the working platform to be tested are transmitted to a computer through a tension sensor to be recorded, so that the accuracy of the test is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The horizontal stress testing device for the working platform is characterized by comprising a base, a platform fixing device, a loading device and an acquisition control system, wherein the platform fixing device is arranged on the base and used for fixing the working platform (1) to be tested, the loading device is arranged on the base and used for loading the working platform (1) to be tested, and the acquisition control system is connected with the loading device; the base comprises a first fixed seat (2), a second fixed seat (3), a first lead screw (4) rotatably arranged between the first fixed seat (2) and the second fixed seat (3) and first sliding rails (5) arranged on two sides of the first lead screw (4); the loading device comprises a left force application device and a right force application device which are arranged on two sides of the working platform (1) to be tested, the left force application device and the right force application device have the same structure, the left force application device comprises a sliding bottom plate (6) arranged on the first sliding rail (5), the sliding bottom plate (6) is in sliding fit with the first sliding rail (5), an adjusting bracket (7) is arranged on the sliding bottom plate (6), a monitoring sensing device is arranged on one side of the adjusting bracket (7) corresponding to the working platform (1) to be tested, and a bottom plate driving mechanism (8) for pushing the sliding bottom plate (6) to slide along the first sliding rail (5) is arranged on the sliding bottom plate (6);
the monitoring sensing device comprises a shell (9) arranged on an adjusting support (7), a servo motor (10), a gearbox (11), a first rack (12), a tension sensor (13) and a hook (14), wherein the servo motor (10) is arranged outside the shell (9), the gearbox (11) is arranged in the shell (9), a power output end of the servo motor (10) is in transmission connection with an input end of the gearbox (11), a rack hole is formed in the shell (9), a first rack (12) is horizontally arranged, one end of the first rack (12) is inserted into the rack hole and meshed with a distance measuring gear (15) of the gearbox (11), the other end of the first rack (12) is connected with a working platform (1) to be tested through the hook (14), and the tension sensor (13) is arranged between the first rack (12) and the hook (14).
2. A horizontal stress testing device for a working platform according to claim 1, characterized in that a second rack (16) is vertically arranged on the adjusting bracket (7), and the second rack (16) is meshed with a sliding gear (17) of the gearbox (11).
3. The horizontal stress testing device of the working platform according to claim 2, wherein second sliding rails (18) are arranged on the adjusting support (7) and on two sides of the second rack (16), sliding grooves (19) matched with the second sliding rails (18) are formed in the shell (9), and the shell (9) is in sliding connection with the second sliding rails (18).
4. A horizontal force testing device for a working platform according to claim 1, characterized in that the base plate driving mechanism (8) is a screw elevator, which is connected to the first screw (4).
5. The horizontal stress testing device of the working platform according to claim 1, wherein the adjusting bracket (7) comprises a plurality of inserting frame monomers, each inserting frame monomer is formed by building four vertical rods and a cross rod, plugs are arranged at the bottoms of the vertical rods, jacks are arranged at the bottoms of the vertical rods, and plugs of adjacent inserting frame monomers are fixedly inserted and connected with the jacks in a matched mode.
6. The horizontal stress testing device of the working platform according to claim 1, wherein the platform fixing device comprises a third fixing seat (20), a bidirectional screw rod (21) rotatably arranged on the third fixing seat (20), a driving motor (22) for driving the bidirectional screw rod (21) to rotate, and a sliding clamp slidably arranged on the bidirectional screw rod (21) and used for clamping the working platform (1) to be tested; the sliding clamp comprises a left clamp (23) and a right clamp (24), wherein the left clamp (23) is connected with a bidirectional screw (21) through a first screw nut (25), the right clamp (24) is connected with the bidirectional screw (21) through a second screw nut (26), and the bidirectional screw (21) is driven to rotate through a driving motor (22), so that the left clamp (23) and the right clamp (24) move in opposite directions or in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952876.1A CN112129630B (en) | 2020-09-11 | 2020-09-11 | Horizontal stress testing device for working platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010952876.1A CN112129630B (en) | 2020-09-11 | 2020-09-11 | Horizontal stress testing device for working platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112129630A CN112129630A (en) | 2020-12-25 |
| CN112129630B true CN112129630B (en) | 2024-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010952876.1A Active CN112129630B (en) | 2020-09-11 | 2020-09-11 | Horizontal stress testing device for working platform |
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| CN (1) | CN112129630B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466029B (en) * | 2021-06-29 | 2022-08-30 | 燕山大学 | Sheet metal tensile test anchor clamps |
| CN114383866B (en) * | 2021-12-29 | 2024-07-26 | 重庆零壹空间航天科技有限公司 | Comprehensive test platform for vehicle-mounted lifting rod |
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| CN206177567U (en) * | 2016-10-31 | 2017-05-17 | 西安建筑科技大学 | Automatic reciprocal load loading device of control axle center atress member |
| CN108557721A (en) * | 2018-05-11 | 2018-09-21 | 中南大学 | A kind of inspection platform |
| CN210442083U (en) * | 2019-08-27 | 2020-05-01 | 武汉市宏建基础设施建设有限公司 | Steel pipe scaffold fastener mechanical properties detector |
| CN111289264A (en) * | 2020-03-06 | 2020-06-16 | 大连交通大学 | An automatic scooter testing machine |
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|---|---|---|---|---|
| CN103454156B (en) * | 2012-05-28 | 2018-01-26 | 富泰华工业（深圳）有限公司 | Pull-out force test mechanism and pull-out force test method |
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2020
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| CN205656070U (en) * | 2016-04-05 | 2016-10-19 | 西南交通大学 | Fibre tensile testing device |
| CN206177567U (en) * | 2016-10-31 | 2017-05-17 | 西安建筑科技大学 | Automatic reciprocal load loading device of control axle center atress member |
| CN106525412A (en) * | 2016-12-27 | 2017-03-22 | 青海华鼎装备制造有限公司 | Overall performance detection platform for rotary table part and detection method thereof |
| CN108557721A (en) * | 2018-05-11 | 2018-09-21 | 中南大学 | A kind of inspection platform |
| CN210442083U (en) * | 2019-08-27 | 2020-05-01 | 武汉市宏建基础设施建设有限公司 | Steel pipe scaffold fastener mechanical properties detector |
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