CN112129630A - Horizontal stress testing device for working platform - Google Patents
Horizontal stress testing device for working platform Download PDFInfo
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- CN112129630A CN112129630A CN202010952876.1A CN202010952876A CN112129630A CN 112129630 A CN112129630 A CN 112129630A CN 202010952876 A CN202010952876 A CN 202010952876A CN 112129630 A CN112129630 A CN 112129630A
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- bottom plate
- rack
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- 238000009662 stress testing Methods 0.000 title claims abstract description 11
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000178 monomer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 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
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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 base is provided with a base seat; the base comprises a first fixed seat, a second fixed seat, a first lead screw and a first slide 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 arranged on a 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 of the adjusting support corresponding to the working platform to be tested, 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 state of the two sides of the working platform to be tested, which bear thrust or pressure, or bear thrust and pressure simultaneously, 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 work platform product is detected, for example, a composite material fast-assembling scaffold, a lifting type maintenance platform and the like, a certain horizontal force is applied in the horizontal direction of a working surface to carry out the detection. At present, people climb to the position with the same height of a working platform and use a chest expander to apply certain force along the horizontal direction for testing. The disadvantages are that: 1. in the testing process, due to the fact that force needs to be applied at a high position, certain danger exists; 2. once the tested platform collapses, peripheral equipment or personnel are easily damaged; 3. only the tension borne by the working platform in the horizontal direction can be tested, and the horizontal thrust borne by the working platform cannot be tested; 4. the force value of the suddenly borne thrust or tension of the working platform and the stressed state cannot be tested; 5. the tension 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 technical scheme adopted by the invention is as follows:
a horizontal stress testing device for a 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 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 slide 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.
Furthermore, the monitoring sensing device comprises a shell, a servo motor, a gearbox, a first rack, a tension sensor and a hook, wherein the shell, the servo motor, the gearbox, the first rack, the tension sensor and the hook are arranged on the adjusting support in a sliding mode, the servo motor is arranged outside the shell, the gearbox is arranged in the shell, the power output end of the servo motor is in transmission connection with the 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 distance measuring 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.
Furthermore, a second rack is vertically arranged on the adjusting bracket, and the second rack is meshed with a sliding gear of the gearbox.
Furthermore, a second sliding rail is arranged on the adjusting support and on two sides of the second rack, a sliding groove matched with the second sliding rail is formed in the shell, and the shell is connected with the second sliding rail in a sliding mode.
Further, the bottom plate driving mechanism is a lead screw lifter, and the lead screw lifter is connected with the first lead screw.
Further, adjust the support and include a plurality of grafting frame monomers, grafting frame monomer is built by four pole settings and horizontal pole and is formed, 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.
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 which is 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 the bidirectional screw rod through a first screw nut, the right clamp is connected with the bidirectional screw rod through a second screw nut, the bidirectional screw rod is driven to rotate through a driving motor, and the left clamp and the right clamp move in the opposite direction or in the opposite direction.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the servo motor rotates the sliding gear to drive the drag hook to move up and down, the connecting position of the drag hook and the working platform to be tested is adjusted, the pressure bearing capacity of different positions of the working platform to be tested is tested, the servo motor rotates the ranging gear, and the left force application device and the right force application device are controlled to apply tension or thrust to the working platform to be tested; and transmitting the stress value of the working platform to be tested and the horizontal displacement value of the working platform to be tested to a computer for recording through a tension sensor. The invention can reduce manual operation, and improve the safety, the working efficiency and the testing accuracy in the testing process; the invention can test the stress conditions of the working platform to be tested at different heights, can test the stress states of thrust and pressure borne by two sides of the working platform to be tested or thrust and pressure borne simultaneously, can test the stability of the working platform in many ways, and has wider application range and stronger practicability.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic view of the monitoring and sensing device according to the present invention;
FIG. 4 is a schematic view of the platform fixing device according to the present invention.
In the figure: 1. a working platform to be tested; 2. a first fixed seat; 3. a second fixed seat; 4. a first lead screw; 5. a first slide rail; 6. a sliding bottom plate; 7. adjusting the bracket; 8. a base plate drive mechanism; 9. a housing; 10. a servo motor; 11. a gearbox; 12. a first rack; 13. a tension sensor; 14. hooking; 15. a distance measuring gear; 16. a second rack; 17. a sliding gear; 18. a second slide rail; 19. a chute; 20. a third fixed seat; 21. a bidirectional lead screw; 22. a drive motor; 23. a left clamp; 24. a right clamp; 25. a first lead screw nut; 26. a second lead screw nut.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-4, the embodiment of the present invention is a device for testing horizontal stress of a working platform, and includes a base, a platform fixing device disposed on the base for fixing a working platform 1 to be tested, a loading device disposed on the base for loading the working platform 1 to be tested, and an acquisition control system connected to the loading device;
the base comprises a first fixed seat 2 and a second fixed seat 3 which are arranged at two sides of a 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 first slide rails 5 which are arranged at two sides of the first lead screw 4, wherein the first lead screw 4 and the first slide rails 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 the first sliding rail 5, a guide groove is arranged on the first sliding rail, a guide strip matched with the guide groove is arranged on the lower end surface 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 lead screw lifter, the lead screw lifter is connected with the first lead screw 4 and slides back and forth on the first lead screw 4 through, the adjusting bracket 7 and the monitoring sensing device on the adjusting bracket are driven to slide, and tension or thrust is applied to the working platform 1 to be measured.
Further, the monitoring sensing device comprises a shell 9 which is arranged on the adjusting bracket 7 in a vertical sliding manner, a servo motor 10, a gearbox 11, a first rack 12, a tension sensor 13 and a hook 14, one end of the shell 9 facing the adjusting bracket is opened, the servo motor 10 is arranged outside the shell 9, the gearbox 11 is arranged in the shell 9, the power output end of the servo motor 10 is in transmission connection with the input end of the gearbox 11, the shell 9 is provided with a rack hole, the first rack 12 is a rack with a groove, is matched with the rack hole and is horizontally arranged, one end of the first rack 12 is inserted into the rack hole and is meshed with the ranging gear 15 of the gearbox 11, the other end of the first rack 12 is connected with the working platform 1 to be measured through a hook 14, and the tension sensor 13 is arranged between the first rack 12 and the hook 14.
Further, adjust and vertically be provided with second rack 16 on the support 7, second rack 16 with the sliding gear 17 of gearbox 11 meshes mutually, drives the sliding gear 17 rotation of gearbox 11 through servo motor 10 to drive monitoring sensing device slides from top to bottom along the second rack, adjusts and the work platform 1 hookup location that awaits measuring, can test the work platform 1 different positions that awaits measuring and receive the state after the atress.
Further, be provided with the structure of shifting in the gearbox, can drive range finding gear 15 and slip gear 17 rotation respectively, gearbox 11 is the same with motor transmission theory of operation, and it is no longer repeated here.
Further, a second slide rail 18 is arranged on the adjusting bracket 7 and on two sides of the second rack 16, a slide groove 19 matched with the second slide rail 18 is arranged on the housing 9, and the housing 9 is slidably connected with the second slide rail 18.
Furthermore, 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.
Furthermore, an encoder is arranged in the gearbox and electrically connected with a computer, the number of rotating circles of the rotating shaft of the servo motor 10 is tested through the encoder, and the distance of the transverse movement of the distance measuring gear 15 is obtained through transmission to the computer for analysis.
Further, it includes a plurality of grafting frame monomers to adjust support 7, grafting frame monomer is built by four pole settings and four horizontal poles and is formed, and four horizontal poles set up at four pole settings middle parts, form the rectangle 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 height and the test height of the work platform that awaits measuring, the height of installation regulation support 7.
Further, the platform fixing device comprises a U-shaped third fixing seat 20, a bidirectional screw 21 rotatably arranged on the third fixing seat 20, a driving motor 22 driving the bidirectional screw 21 to rotate, and a sliding clamp slidably arranged on the bidirectional screw 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 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.
Test working principle (procedure): according to the invention, the lead screw lifter slides on the first slide 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 between the hook and the working platform to be tested is adjusted, the pressure bearing capacity of different position heights 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 tension or thrust to the working platform to be tested; and the stress value of the working platform to be tested is transmitted to a computer through the tension sensor and the horizontal displacement value of the working platform to be tested is transmitted to the computer through the encoder to be recorded, so that the testing accuracy is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A horizontal stress testing device of a 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 is used for fixing the working platform (1) to be tested, the loading device is arranged on the base and is 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 slide rails (5) arranged at two sides of the first lead screw (4); loading device including set up in the left force applying device and the right force applying device of work platform (1) both sides await measuring, left side force applying device and right force applying device structure are the same, left side force applying device including set up in sliding bottom plate (6) on first slide rail (5), sliding bottom plate (6) with first slide rail (5) sliding fit, be provided with on sliding bottom plate (6) and adjust support (7), adjust support (7) with the corresponding one side of work platform (1) await measuring is provided with monitoring sensing device, be provided with on sliding bottom plate (6) and promote sliding bottom plate (6) along the gliding bottom plate actuating mechanism (8) of first slide rail (5).
2. The horizontal stress testing device of the working platform according to claim 1, wherein the monitoring sensing device comprises a housing (9) slidably disposed on the adjusting bracket (7), a servo motor (10), a gearbox (11), a first rack (12), a tension sensor (13) and a hook (14), the servo motor (10) is disposed outside the housing (9), the gearbox (11) is disposed in the housing (9), a power output end of the servo motor (10) is in transmission connection with an input end of the gearbox (11), the housing (9) is provided with a rack hole, the first rack (12) is horizontally disposed, one end of the first rack (12) is inserted into the rack hole to be engaged with a distance measuring gear (15) of the gearbox (11), and the other end of the first rack (12) is connected with the working platform (1) to be tested through the hook (14), the tension sensor (13) is arranged between the first rack (12) and the hook (14).
3. The device for testing the horizontal stress of the working platform according to claim 2, wherein 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).
4. The horizontal stress testing device of the working platform according to claim 3, wherein second sliding rails (18) are arranged on the adjusting bracket (7) and on two sides of the second rack (16), a sliding groove (19) matched with the second sliding rails (18) is arranged on the shell (9), and the shell (9) is connected with the second sliding rails (18) in a sliding manner.
5. The horizontal stress testing device of the working platform as claimed in claim 1, wherein the bottom plate driving mechanism (8) is a lead screw lifter, and the lead screw lifter is connected with the first lead screw (4).
6. The device for testing the horizontal stress of the working platform according to claim 1, wherein the adjusting bracket (7) comprises a plurality of single plugging frame bodies, each single plugging frame body is formed by four vertical rods and a cross rod, a plug is arranged at the bottom of each vertical rod, a jack is arranged at the bottom of each vertical rod, and the plug and the jack of each adjacent plugging frame body are matched, plugged and fixed.
7. 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 (21) rotatably arranged on the third fixing seat (20), a driving motor (22) for driving the bidirectional screw (21) to rotate, and a sliding clamp which is slidably arranged on the bidirectional screw (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 a bidirectional screw rod (21) through a first screw nut (25), the right clamp (24) is connected with the bidirectional screw rod (21) through a second screw nut (26), and the bidirectional screw rod (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 the 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 true CN112129630A (en) | 2020-12-25 |
| CN112129630B 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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| Country | Link |
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| CN (1) | CN112129630B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466029A (en) * | 2021-06-29 | 2021-10-01 | 燕山大学 | Sheet metal tensile test anchor clamps |
| CN114383866A (en) * | 2021-12-29 | 2022-04-22 | 重庆零壹空间航天科技有限公司 | Vehicle-mounted lifting rod comprehensive test platform |
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2020
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466029A (en) * | 2021-06-29 | 2021-10-01 | 燕山大学 | Sheet metal tensile test anchor clamps |
| CN113466029B (en) * | 2021-06-29 | 2022-08-30 | 燕山大学 | Sheet metal tensile test anchor clamps |
| CN114383866A (en) * | 2021-12-29 | 2022-04-22 | 重庆零壹空间航天科技有限公司 | Vehicle-mounted lifting rod comprehensive test platform |
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|---|---|
| CN112129630B (en) | 2024-03-15 |
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