CN210893716U - Static load testing machine for ladder - Google Patents
Static load testing machine for ladder Download PDFInfo
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- CN210893716U CN210893716U CN201921927826.7U CN201921927826U CN210893716U CN 210893716 U CN210893716 U CN 210893716U CN 201921927826 U CN201921927826 U CN 201921927826U CN 210893716 U CN210893716 U CN 210893716U
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- ladder
- wire rope
- testing machine
- static load
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Abstract
The utility model relates to a static load testing machine for ladders, which comprises a frame, a bracket and a horizontal slide rail mechanism, wherein the bracket is provided with an ascending walking mechanism, the ascending walking mechanism is provided with a supporting rod for supporting the ladders, the frame is provided with a horizontal transmission component, the horizontal transmission component is provided with a steel wire rope, the horizontal slide rail mechanism is provided with a roller, and the steel wire rope converts horizontal force into vertical force applied on the ladders by the roller; the utility model has the advantages that: the steel wire rope on the horizontal transmission assembly is connected with the crosspiece of the ladder tool through the pulley, then the steel wire rope is driven to do horizontal linear motion through the horizontal transmission assembly, the horizontal force of the steel wire rope is converted into the vertical force applied to the ladder tool through the roller, after the force loading reaches the set tension value, the steel wire rope enters a pressure maintaining stage, after pressure maintaining timing is finished, the test is completed through automatic unloading of equipment, the use is simple, the operation is safe, the rapid detection is realized, the preventive detection for the daily ladder tool can be realized, and the strength test of the crosspiece and the strength test of the connecting device can be completed.
Description
Technical Field
The utility model relates to a ladder static load testing machine.
Background
Ladder utensil is the apparatus that daily life term ascended a height, because ladder utensil frequency of use is high, the life-span is required long, ladder utensil's safe bearing performance support concerns user's personal safety, needs to carry out the experimental and the connecting device intensity of crosspiece intensity to ladder utensil and experimental, and prior art does not have complete testing machine to test ladder utensil, and the testing machine function singleness, can not adapt to different ladder utensils.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reach the purpose provide a ladder utensil static load testing machine, can be used to the preventive detection of daily ladder utensil, can accomplish the crosspiece intensity test and the connecting device intensity test.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: the utility model provides a terraced utensil static load testing machine, includes frame, support and horizontal slide rail mechanism, horizontal slide rail mechanism fixed connection is in the frame, support fixed connection is in the frame, be equipped with the running gear that rises on the support, be equipped with the bracing piece that supports terraced utensil on the running gear that rises, be equipped with horizontal drive subassembly in the frame, be equipped with wire rope on the horizontal drive subassembly, be equipped with the gyro wheel with wire rope matched with on the horizontal slide rail mechanism, wire rope's one end is walked around behind the gyro wheel and is linked to each other with terraced utensil, wire rope relies on the gyro wheel to convert horizontal force into the vertical force of exerting on terra.
Preferably, the horizontal transmission assembly comprises a first motor, a ball screw and a ball nut, the ball nut is arranged on the ball screw, a horizontal sliding plate is arranged on the ball nut, a lifting ring with the efficiency of the steel wire rope is arranged on the horizontal sliding plate, and the first motor is in transmission connection with the ball screw.
Preferably, a driving wheel is arranged on the first motor, a driven wheel matched with the driving wheel is arranged on the ball screw, and a synchronous belt is arranged between the driving wheel and the driven wheel.
Preferably, the rack is further provided with a tension wheel for adjusting the tension of the synchronous belt.
Preferably, the rack is provided with a guide sleeve for facilitating the penetration of the steel wire rope.
Preferably, the horizontal sliding rail mechanism comprises a supporting block and a horizontal linear guide rail arranged on the supporting block, a sliding block for fixing the roller is arranged on the horizontal linear guide rail, and a connecting plate connected with the rack is arranged on the horizontal linear guide rail.
Preferably, the support comprises a vertical part and a horizontal part, the horizontal part is arranged at the top end of the vertical part, the vertical part is provided with an upper limiting block and a lower limiting block, and the ascending walking mechanism is movably connected to the vertical part and is positioned between the upper limiting block and the lower limiting block.
Preferably, the running gear that rises includes driving gear, driven gear, transmission shaft, left slide and right slide, driven gear fixed connection is on left slide, the driving gear sets up on right slide, the transmission shaft sets up between driving gear and driven gear, be equipped with the second motor on the right slide, be equipped with the worm gear speed reducer who links to each other with the transmission shaft on the second motor, be equipped with the rack in the vertical portion, the bracing piece sets up between left slide and right slide.
Preferably, the left sliding seat and the right sliding seat are both provided with guide wheel sets which are in contact with the vertical part.
Preferably, the horizontal part is also provided with an electric hoist for assisting the ladder to be placed on the ascending walking mechanism.
To sum up, the utility model has the advantages that: the steel wire rope on the horizontal transmission assembly is connected with the crosspiece of the ladder tool through the pulley, then the steel wire rope is driven to do horizontal linear motion through the horizontal transmission assembly, the horizontal force of the steel wire rope is converted into a vertical force applied to the ladder tool through the idler wheel, after the force loading reaches a set tension value, the pressure maintaining stage is entered, after the pressure maintaining timing is finished, the test is completed by automatic unloading of equipment, the use is simple, the operation is safe, the rapid detection is realized, the preventive detection of the daily ladder tool can be realized, the strength test of the crosspiece and the strength test of the connecting device can be completed, the stroke is adjustable, the control is stable and reliable, the test has the advantage of high repeatability, in addition, the support rod is arranged on the ascending walking mechanism, the height can be.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a static load testing machine for ladders according to the present invention;
fig. 2 is a schematic structural view of the middle frame of the present invention;
FIG. 3 is a schematic structural view of the middle lifting traveling mechanism of the present invention;
fig. 4 is a schematic structural view of the middle horizontal slide rail of the present invention;
fig. 5 is a schematic structural view of the middle support of the present invention.
Reference numerals:
1 rack, 11 guide sleeves, 12 travel switches, 2 supports, 21 vertical parts, 22 horizontal parts, 23 upper limit blocks, 24 lower limit blocks, 25 fixing plates, 26 racks, 27 electric hoists, 3 horizontal sliding rail mechanisms, 30 rollers, 31 supporting blocks, 32 horizontal linear guide rails, 33 sliding blocks, 34 connecting plates, 4 lifting traveling mechanisms, 40 supporting rods, 41 driving gears, 42 driven gears, 43 transmission shafts, 44 left sliding seats, 45 right sliding seats, 46 second motors, 47 worm gear speed reducers, 48 guide wheel sets, 5 horizontal transmission assemblies, 50 steel wire ropes, 51 first motors, 52 ball screws, 53 ball nuts, 54 horizontal sliding plates, 55 lifting rings, 56 driving wheels, 57 driven wheels, 58 synchronous belts, 59 tensioning wheels, 6PLC control cabinets and 7 ladders.
Detailed Description
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a ladder static load testing machine comprises a frame 1, a bracket 2 and a horizontal sliding rail mechanism 3, the horizontal sliding rail mechanism 3 is fixedly connected on the frame 1, the bracket 2 is fixedly connected on the frame 1, the support 2 is provided with an ascending walking mechanism 4, the ascending walking mechanism 4 is provided with a support rod 40 for supporting the ladder 7, a horizontal transmission component 5 is arranged on the frame 1, a steel wire rope 50 is arranged on the horizontal transmission component 5, the horizontal sliding rail mechanism 3 is provided with a roller 30 matched with a steel wire rope 50, one end of the steel wire rope 50 is connected with the ladder after bypassing the roller 30, the cable 50 converts the horizontal force into a vertical force applied to the ladder by means of the rollers 30, in addition, the frame 1 is connected with a PLC control cabinet 6, so that the stability and reliability of the overall control in the test process can be realized.
During the experiment, link to each other wire rope on with the horizontal drive subassembly through the pulley with the crosspiece of ladder utensil, then drive wire rope through horizontal drive subassembly and be horizontal linear motion, and convert wire rope's horizontal force into and exert the vertical force to the ladder utensil through the gyro wheel, after reaching the settlement tension value as the force loading, get into the pressurize stage, after the pressurize timing, equipment automatic discharge accomplishes the experiment, high durability and convenient use, safety in operation, short-term test, can be used to the preventive detection of daily ladder utensil, can accomplish crosspiece intensity test and connecting device intensity test, the stroke is adjustable, and control is reliable and stable, the advantage that experimental repeatability is high, in addition, the bracing piece sets up to rise on the running gear, can carry out altitude mixture control according to the ladder utensil of different models, and the practicality is good.
The horizontal transmission assembly comprises a first motor 51, a ball screw 52 and a ball nut 53, the ball nut 53 is arranged on the ball screw 52, a horizontal sliding plate 54 is arranged on the ball nut 53, a lifting ring 55 with efficiency to the steel wire rope 50 is arranged on the horizontal sliding plate 54, the first motor 51 is in transmission connection with the ball screw 52 and converts the rotation motion of the first motor 51 into the linear motion of the ball screw 52, a mechanism of the ball screw 52 drives the steel wire rope 50 pulled by the lifting ring 55 to do the linear motion, the transmission effect is good, the connection is reliable, in addition, in order to ensure the sliding stability of the horizontal sliding plate 54, two ball screws 52 are arranged in the embodiment, in addition, a travel switch 12 is arranged on the frame 1, a driving wheel 56 is arranged on the first motor 51, a driven wheel 57 matched with the driving wheel 56 is arranged on the ball screw, and a synchronous belt 58 is arranged between the driving, the steel wire rope tension adjusting device is good in driving effect and stable in transmission, a tension wheel 59 for adjusting the tension force of the synchronous belt 58 is further arranged on the rack 1, the tension force of the synchronous belt 58 can be adjusted by the tension wheel 59, different test requirements can be met, the guide sleeve 11 convenient for the steel wire rope 50 to penetrate through is arranged on the rack 1, the horizontal straightness of the steel wire rope 50 can be guaranteed by the guide sleeve 11, and radial shaking of the steel wire rope 50 in the horizontal moving process is reduced.
The horizontal sliding rail mechanism 3 comprises a supporting block 31 and a horizontal linear guide rail 32 arranged on the supporting block 31, a sliding block 33 for fixing the roller 30 is arranged on the horizontal linear guide rail 32, a connecting plate 34 connected with the rack 1 is arranged on the horizontal linear guide rail 32, the sliding horizontal linearity of the roller 30 can be ensured, the adjusting position of the roller 30 can be kept consistent with that of a ladder in the vertical direction, a steel wire rope 50 can apply vertical force to the ladder, the horizontal linear guide rail 32 can be quickly installed on the rack 1 due to the arrangement of the connecting plate 34, and the connecting plate 34 in the embodiment is installed on the rack through bolts.
The support 2 comprises a vertical part 21 and a horizontal part 22, the horizontal part 22 is arranged at the top end of the vertical part 21, an upper limit block 23 and a lower limit block 24 are arranged on the vertical part 21, the ascending walking mechanism 4 is movably connected to the vertical part 21 and located between the upper limit block 23 and the lower limit block 24, a fixing plate 25 connected with the frame 1 is arranged on the vertical part 21, and in order to improve the strength and rigidity of the support 2, the support 2 in the embodiment is formed by welding industrial sectional materials, the upper limit block 23 and the lower limit block 24 are arranged to limit the ascending and descending stroke of the ascending walking mechanism 4, the safety performance of the ascending walking mechanism 4 in the ascending and descending process can be improved, and the fixing plate in the embodiment is arranged on the frame through a bolt assembly.
The ascending walking mechanism 4 comprises a driving gear 41, a driven gear 42, a transmission shaft 43, a left sliding seat 44 and a right sliding seat 45, the driven gear 42 is fixedly connected to the left sliding seat 44, the driving gear 41 is arranged on the right sliding seat 45, the transmission shaft 43 is arranged between the driving gear 41 and the driven gear 42, a second motor 46 is arranged on the right sliding seat 45, a worm gear speed reducer 47 connected with the transmission shaft 43 is arranged on the second motor 46, a rack 26 is arranged on the vertical part 21, the supporting rod 40 is arranged between the left sliding seat 44 and the right sliding seat 45, the driving gear 41 is driven to rotate by the second motor 46, the driven gear 42 is driven to synchronously rotate by the transmission shaft 43, the levelness of the ascending walking mechanism 4 in the ascending and descending processes can be realized, the worm gear speed reducer 47 is arranged, and the self-locking function of the ascending walking mechanism 4, the fixed effect of running gear 4 that rises in the improvement testing process, all be equipped with the direction wheelset 48 with vertical portion 21 contact on left side slide 44 and the right slide 45, can ensure the stationarity that running gear 4 that rises and decline in-process, still be equipped with on the horizontal part 22 and assist the ladder and place the electric block 27 on running gear 4 that rises, can improve the efficiency of placing of ladder, and can reduce operating personnel's working strength.
In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.
Claims (10)
1. The utility model provides a ladder static load testing machine, includes the frame, its characterized in that: still include support and horizontal slide rail mechanism, horizontal slide rail mechanism fixed connection is in the frame, support fixed connection is in the frame, be equipped with the running gear that rises on the support, be equipped with the bracing piece that supports the ladder utensil on the running gear that rises, be equipped with the horizontal drive subassembly in the frame, be equipped with wire rope on the horizontal drive subassembly, be equipped with the gyro wheel with wire rope matched with on the horizontal slide rail mechanism, wire rope's one end is walked around behind the gyro wheel and is linked to each other with the ladder utensil, wire rope relies on the gyro wheel to convert horizontal force into the vertical force of exerting on the ladder utensil.
2. The ladder static load testing machine of claim 1, wherein: the horizontal transmission assembly comprises a first motor, a ball screw and a ball nut, the ball nut is arranged on the ball screw, a horizontal sliding plate is arranged on the ball nut, a lifting ring with the efficiency of the steel wire rope is arranged on the horizontal sliding plate, and the first motor is in transmission connection with the ball screw.
3. The ladder static load testing machine of claim 2, wherein: the ball screw is provided with a driven wheel matched with the driving wheel, and a synchronous belt is arranged between the driving wheel and the driven wheel.
4. The ladder static load testing machine of claim 3, wherein: and a tension wheel for adjusting the tension of the synchronous belt is also arranged on the rack.
5. The ladder static load testing machine of claim 1, wherein: and the rack is provided with a guide sleeve which is convenient for the steel wire rope to penetrate.
6. The ladder static load testing machine of claim 1, wherein: the horizontal sliding rail mechanism comprises a supporting block and a horizontal linear guide rail arranged on the supporting block, a sliding block for fixing the roller is arranged on the horizontal linear guide rail, and a connecting plate connected with the rack is arranged on the horizontal linear guide rail.
7. The ladder static load testing machine of claim 1, wherein: the support comprises a vertical part and a horizontal part, the horizontal part is arranged at the top end of the vertical part, an upper limiting block and a lower limiting block are arranged on the vertical part, the ascending walking mechanism is movably connected to the vertical part and located between the upper limiting block and the lower limiting block, and a fixing plate connected with the rack is arranged on the vertical part.
8. The ladder static load testing machine of claim 7, wherein: the ascending walking mechanism comprises a driving gear, a driven gear, a transmission shaft, a left sliding seat and a right sliding seat, the driven gear is fixedly connected to the left sliding seat, the driving gear is arranged on the right sliding seat, the transmission shaft is arranged between the driving gear and the driven gear, a second motor is arranged on the right sliding seat, a worm and gear speed reducer connected with the transmission shaft is arranged on the second motor, a rack is arranged in a vertical portion, and a supporting rod is arranged between the left sliding seat and the right sliding seat.
9. The ladder static load testing machine of claim 8, wherein: and guide wheel sets in contact with the vertical part are arranged on the left sliding seat and the right sliding seat.
10. The ladder static load testing machine of claim 7, wherein: and the horizontal part is also provided with an electric hoist for assisting the ladder to be placed on the ascending walking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921927826.7U CN210893716U (en) | 2019-11-08 | 2019-11-08 | Static load testing machine for ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921927826.7U CN210893716U (en) | 2019-11-08 | 2019-11-08 | Static load testing machine for ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210893716U true CN210893716U (en) | 2020-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921927826.7U Active CN210893716U (en) | 2019-11-08 | 2019-11-08 | Static load testing machine for ladder |
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|---|---|
| CN (1) | CN210893716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609105A (en) * | 2023-07-17 | 2023-08-18 | 实链检测(浙江)有限公司 | Ladder static load test method and device |
-
2019
- 2019-11-08 CN CN201921927826.7U patent/CN210893716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116609105A (en) * | 2023-07-17 | 2023-08-18 | 实链检测(浙江)有限公司 | Ladder static load test method and device |
| CN116609105B (en) * | 2023-07-17 | 2023-11-17 | 实链检测(浙江)有限公司 | Ladder static load test method and device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A static load testing machine for ladder Effective date of registration: 20230209 Granted publication date: 20200630 Pledgee: Zhejiang Hangzhou Yuhang Rural Commercial Bank Co.,Ltd. Qiantang Sub branch Pledgor: HANGZHOU YINGMIN TECHNOLOGY Co.,Ltd. Registration number: Y2023330000335 |