CN113418690A - Static simulation test system and method for anti-falling device of lifting protection platform - Google Patents
Static simulation test system and method for anti-falling device of lifting protection platform Download PDFInfo
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- CN113418690A CN113418690A CN202110789150.5A CN202110789150A CN113418690A CN 113418690 A CN113418690 A CN 113418690A CN 202110789150 A CN202110789150 A CN 202110789150A CN 113418690 A CN113418690 A CN 113418690A
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- oil cylinder
- lifting
- falling device
- movable roller
- brake block
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a static simulation test system and a static simulation test method for an anti-falling device of a lifting protection platform, which comprises a supporting frame, wherein a moving mechanism is arranged on the inner bottom surface of the supporting frame, a test tool is arranged on the moving mechanism, and the anti-falling device is arranged on the test tool; the top of the up-down penetrating supporting frame is provided with a lifting oil cylinder, the output end of the lifting oil cylinder faces downwards, the end part of the lifting oil cylinder is provided with a pressure head, the bottom of the pressure head is clamped with a pressure plate, and the bottom end of the pressure plate is positioned right above the anti-falling device; a pressure sensor is arranged between the pressure head and the output end of the lifting oil cylinder; the pressure head and the pressure plate are driven by the lifting oil cylinder to move downwards and apply force to the anti-falling device on the test tool, until the anti-falling device fails, the bearing force is obtained through the pressure sensor, and therefore the static load simulation test of the anti-falling device is achieved.
Description
Technical Field
The invention relates to the technical field of lifting operation safety protection platforms, in particular to a static simulation test system and a static simulation test method for an anti-falling device of a lifting protection platform.
Background
The attached lifting operation safety protection platform (protection platform for short) for building construction is a steel structure frame assembled on the ground, is connected to an attached wall support, is circularly lifted through an electric hoist, and is lifted along with the rising of a building. The protection platform is mainly used by a frame body, a wall-attached support, a lifting mechanism, an anti-falling device and a control system synchronously, surrounds the whole building, has the maximum height of 5 floors, the maximum span of 7 meters and the maximum width of 1.2 meters, and has tens of machine positions for lifting the whole building. In order to prevent the protective platform from falling in the lifting process, the anti-falling device is the last line of defense for ensuring safety, and the reliability of the anti-falling device is particularly important.
Once the protection platform is installed on the site, the protection platform rises along with the rising of the building, and the protection platform surrounds the building for a circle, and is bulky and heavy, and the anti-falling test is not only dangerous, but also can damage the building, so in the prior art, the anti-falling test is carried out on a sample frame of a manufacturing unit, and the existing test mode is as follows: lifting 30cm, then descending 15cm, starting the detacher to perform an anti-falling test, wherein during the anti-falling test, the frame body is unloaded, and all the anti-falling devices are tested together. The anti-falling device is divided into a lattice type and a friction type, and the lattice type is divided into a swing block type, a rotary wheel type and a top support type.
The existing test method has the following defects:
(1) the test requires a dedicated test stand. Because the test is carried out on the sample frame, at least one test sample frame with 3 layers, about, and tens of meters long needs to be built for the purpose of preventing falling in the test, the cost needs hundreds of thousands of times, the period is long, and the field is occupied.
(2) Each fall arrest device cannot be truly qualified. Because the whole frame body descends together to check all the anti-falling devices, the falling device is not easy to fall synchronously due to factors such as the unevenness of the frame body, the friction of each frame body and the like, the anti-falling devices are not stressed uniformly due to the inconsistent actions of all the unhooking devices, different starting moments of all the anti-falling devices and the like, and the capacity of the anti-falling devices cannot be checked really.
(3) The limit capacity test of the fall arrest device cannot be performed. The sample frame no-load test is adopted, and the actual falling prevention capacity cannot be reflected in the falling test from the static state.
(4) The test is time-consuming and labor-consuming. The sample frame test firstly needs the lifting of the frame body, the leveling of the frame body, the tripping, the chain guide of the hoist and the like, and wastes time and labor.
(5) Causing damage to the test sample rack. Every time the sample falls, the sample rack is damaged due to one-time impact, and the sample rack is not easy to be repeatedly used.
(6) The falling protector is inconvenient to leave factory. The safety catcher is used as a product, is produced in batches, needs to be subjected to sampling test in each batch, and is obviously unrealistic to test on a test sample rack.
(7) Extreme destructive testing could not be performed. The empty load test is carried out on the existing sample frame, the test load is smaller and far smaller than the theoretical design load of the falling protector, the ultimate failure capacity needs to be loaded according to the ultimate value of the theoretical design load, and the test load cannot be realized on the sample frame.
Disclosure of Invention
The applicant provides a lifting protection platform anti-falling device static simulation test system and a test method with reasonable structure aiming at the defects in the prior art, thereby realizing the static load simulation test of the anti-falling device, being suitable for the independent test of a single anti-falling device, and having convenient test, good reliability and good practicability.
The technical scheme adopted by the invention is as follows:
a static simulation test system for an anti-falling device of a lifting protection platform comprises a supporting frame, wherein a moving mechanism is arranged on the inner bottom surface of the supporting frame, a test tool is arranged on the moving mechanism, and the anti-falling device is arranged on the test tool; the top of the up-down penetrating supporting frame is provided with a lifting oil cylinder, the output end of the lifting oil cylinder faces downwards, the end part of the lifting oil cylinder is provided with a pressure head, the bottom of the pressure head is clamped with a pressure plate, and the bottom end of the pressure plate is positioned right above the anti-falling device; and a pressure sensor is arranged between the pressure head and the output end of the lifting oil cylinder.
As a further improvement of the above technical solution:
the structure of the test tool is as follows: the device comprises a supporting seat, wherein vertical beams and inclined struts are arranged on the supporting seat at left and right intervals, a cross beam is jointly arranged between the upper parts of the vertical beams and the tops of the inclined struts, movable rollers are rotatably arranged at the end parts of the cross beam close to the inclined struts, and downward force is applied to the movable rollers by the downward bottom end of a pressing plate, so that the movable rollers rotate in a vertical plane; a brake block is rotatably arranged on the cross beam beside the movable roller, and the rotating movable roller applies force to the brake block to enable the brake block to swing; and a baffle plate for preventing the brake block from swinging.
The movable roller is of a five-star structure, one side of the movable roller is pressed downwards by the pressure plate, and the other side of the movable roller applies force upwards to the brake block.
The brake block is an eccentric block and is driven by the movable roller to deflect upwards; and a baffle is arranged on the cross beam positioned at the position obliquely above the brake block and used for blocking the deflection of the brake block.
And a guide mechanism is further installed between the output end of the lifting oil cylinder and the supporting frame, and a lifting limiting mechanism is installed between the guide mechanism and the top of the supporting frame.
The structure of the supporting frame is as follows: the device comprises a top plate and a base which are arranged at intervals up and down, wherein stand columns are fixedly arranged at four corners between the top plate and the base;
the structure of the guide mechanism is as follows: the guide rod assembly comprises a plurality of guide rods which vertically penetrate through a top plate, and horizontal plates are jointly arranged at the bottom ends of the guide rods; the output end of the lifting oil cylinder penetrates through the horizontal plate downwards and is fixedly installed, and a lifting limiting mechanism is installed between the horizontal plate and the top plate.
The structure of the lifting limiting mechanism is as follows: the displacement guide rod is fixedly arranged on a horizontal plate through a fastener, the displacement guide rod extends upwards into a top plate, a proximity switch is arranged on the top plate, an upper limit collision head is arranged on the displacement guide rod above the proximity switch, and a lower limit collision head is arranged on the displacement guide rod below the proximity switch; and the bottom surface of the top plate is also provided with a displacement sensor, and the sensing end of the displacement sensor is rightly opposite to the lower limit collision head.
The structure of the moving mechanism is as follows: the device comprises a bracket fixedly arranged on the rear side surface of the bottom of a supporting frame, a transverse moving oil cylinder is arranged on the bracket, the output end of the transverse moving oil cylinder faces forwards, a sliding table is arranged at the end part of the transverse moving oil cylinder, and T-shaped grooves which are arranged at intervals from front to back are formed in the sliding table; a sliding rail is further arranged between the sliding table and the bottom of the supporting frame; a limiting seat is further arranged on the bottom surface of the supporting frame outside the side surface of the sliding table along the sliding direction of the sliding rail, limiting switches are arranged at the front end and the rear end of the limiting seat, and rotating wheels are arranged on the inner side surfaces of the limiting switches; a stroke collision head is arranged on the side face of the sliding table and located between the two limit switches.
Still including controlling the platform, control the platform and arrange in the braced frame outside, control the structure of platform and be: the multifunctional operating table comprises a support, wherein an operating table is arranged on the support, a display screen is embedded in the middle of the upper part of the operating table, and a plurality of buttons are arranged on the operating table below and on the operating table at two sides of the display screen at intervals; the display screen and the buttons are respectively electrically connected with the control system, the moving mechanism and the lifting oil cylinder, and the moving mechanism and the lifting oil cylinder are controlled to act through the corresponding buttons.
A test method of the static simulation test system for the anti-falling device of the lifting protection platform comprises the following steps:
according to the test requirements, one or two of a movable roller and a brake block are mounted on the test tool;
the moving mechanism tool drives the test tool to move to the position right below the lifting oil cylinder;
when the lifting oil cylinder works, the driving pressure head and the pressure plate move downwards, so that the bottom end of the pressure plate is close to and applies downward force to the movable roller, the movable roller rotates relative to the cross beam, and the movable roller pushes the brake block to swing until the brake block is close to and clings to the baffle;
the lifting oil cylinder continues to work, force is continuously applied to the movable roller downwards through the pressure head and the pressure plate, and the force transmitted by the pressure head is monitored by the pressure sensor in real time;
and when one of the movable roller, the brake block or the baffle fails, the lifting oil cylinder stops working, so that the maximum force before failure is obtained through the pressure sensor.
The invention has the following beneficial effects:
the anti-falling device is compact and reasonable in structure and convenient to operate, the pressure head and the pressure plate are driven by the lifting oil cylinder to descend and apply force downwards to the anti-falling device on the test tool until the anti-falling device fails, and bearing force is obtained through the pressure sensor, so that static load simulation test of the anti-falling device is realized, the anti-falling device is particularly suitable for independent test of a single anti-falling device, the test is convenient and reliable, the test cost and the cost are low, the anti-falling device is greatly assisted in reliable and effective test, and the assistance is realized in ensuring the safety and reliability of the protection platform;
the invention also comprises the following advantages:
the static simulation test system can be arranged in a laboratory or at the tail end of a production line of a production workshop for use, is convenient for static tests of anti-falling devices with various requirements, and is convenient and reliable to operate; the device is particularly suitable for carrying out static stress strength test on a certain part in the anti-falling device.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of B in fig. 1.
Fig. 4 is a partially enlarged view of C in fig. 1.
Fig. 5 is a schematic structural diagram of the moving mechanism of the present invention.
Fig. 6 is a schematic structural diagram (another view) of the moving mechanism of the present invention.
Fig. 7 is a schematic structural diagram of the manipulation platform of the present invention.
Wherein: 1. a support frame; 2. a lifting limiting mechanism; 3. a lift cylinder; 4. a guide mechanism; 5. a pressure sensor; 6. a pressure head; 7. pressing a plate; 8. testing the tool; 9. a moving mechanism; 10. a hydraulic station; 20. a manipulation platform;
11. a base; 12. a column; 13. a top plate;
21. a displacement guide rod; 22. an upper limit head collision; 23. a proximity switch; 24. a displacement sensor; 25. a lower limit head collision; 26. a fastener;
41. a guide bar; 42. a horizontal plate;
61. a through hole; 62. a card slot;
81. a supporting seat; 82. anchor bolts; 83. bracing; 84. a movable roller; 85. a brake pad; 86. a baffle plate; 87. a cross beam; 88. erecting a beam;
91. a support; 92. transversely moving the oil cylinder; 93. a sliding table; 94. a T-shaped groove; 95. a slide rail; 96. a stroke ram; 97. a limiting seat; 98. a limit switch; 99. a rotating wheel;
201. a support; 202. an operation table; 203. a button; 204. a display screen.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the static simulation test system for the anti-falling device of the lifting protection platform of the embodiment comprises a support frame 1, wherein a moving mechanism 9 is installed on the inner bottom surface of the support frame 1, a test tool 8 is installed on the moving mechanism 9, and the anti-falling device is installed on the test tool 8; the top of the up-down penetrating supporting frame 1 is provided with a lifting oil cylinder 3, the output end of the lifting oil cylinder 3 faces downwards, the end part of the lifting oil cylinder is provided with a pressure head 6, the bottom of the pressure head 6 is clamped with a pressure plate 7, and the bottom end of the pressure plate 7 is positioned right above the anti-falling device; and a pressure sensor 5 is arranged between the pressure head 6 and the output end of the lifting oil cylinder 3, and the pressure sensor 5 is used for detecting the pressure loaded by the pressure head 6 in real time.
The pressure head 6 and the pressure plate 7 are driven by the lifting oil cylinder 3 to move downwards and apply force to the anti-falling device on the test tool 8 downwards until the anti-falling device fails, and bearing force is obtained through the pressure sensor 5, so that a static load simulation test of the anti-falling device is realized, and the anti-falling device is particularly suitable for an independent test of a single anti-falling device.
As shown in fig. 2, the test fixture 8 has the following structure: the device comprises a supporting seat 81, wherein vertical beams 88 and inclined struts 83 are arranged on the supporting seat 81 at left and right intervals, a cross beam 87 is jointly arranged between the upper parts of the vertical beams 88 and the tops of the inclined struts 83, movable rollers 84 are rotatably arranged at the end parts of the cross beams 87 close to the inclined struts 83, and downward force is applied to the movable rollers 84 by the downward bottom end of a pressing plate 7, so that the movable rollers 84 rotate in a vertical plane; a stop block 85 is rotatably mounted on the cross beam 87 beside the movable roller 84, and the rotating movable roller 84 applies force to the stop block 85 to make it swing; a damper 86 is also included to prevent the brake block 85 from swinging.
Supporting seat 81, crossbeam 87 and bracing 83 all can be the rectangular tube structure, and bracing 83 leans out towards the direction that deviates from vertical beam 88, plays the effect of supporting and stable test frock 8 through bracing 83, especially the steady function of system in experimental the going on.
The movable roller 84 and the brake block 85 are respectively rotatably mounted on the lateral side of the cross beam 87 through pin shafts.
The movable roller 84 is in a five-star structure, one side of the movable roller 84 is pressed downwards by the pressure plate 7, and the other side of the movable roller 84 applies force upwards to the brake block 85.
The brake block 85 is an eccentric block, and the brake block 85 is driven by the movable roller 84 to deflect upwards; a stopper 86 is attached to the cross member 87 located diagonally above the brake pad 85, and the stopper 86 stops the deflection of the brake pad 85.
The support base 81 is attached to the moving mechanism 9 by an anchor bolt 82.
A guide mechanism 4 is further installed between the output end of the lifting oil cylinder 3 and the supporting frame 1, and a lifting limiting mechanism 2 is installed between the guide mechanism 4 and the top of the supporting frame 1.
The structure of the supporting frame 1 is: the device comprises a top plate 13 and a base 11 which are arranged at intervals up and down, wherein upright columns 12 are fixedly arranged at four corners between the top plate 13 and the base 11;
the structure of the guide mechanism 4 is: comprises a plurality of guide rods 41 which vertically penetrate through the top plate 13, and horizontal plates 42 are jointly arranged at the bottom ends of the guide rods 41; the output end of the lifting oil cylinder 3 downwards penetrates through the horizontal plate 42 and is fixedly installed, and the lifting limiting mechanism 2 is installed between the horizontal plate 42 and the top plate 13.
The guide rod 41 may be a hollow cylindrical long rod, which plays a guiding role in the process that the horizontal plate 42 moves up and down along with the output end of the lift cylinder 3, and the hollow inside of the guide rod 41 can also be used for routing.
As shown in fig. 3, the elevation limiting mechanism 2 has the following structure: the device comprises a displacement guide rod 21 fixedly mounted on a horizontal plate 42 through a fastener 26, wherein the displacement guide rod 21 extends upwards into a top plate 13, a proximity switch 23 is mounted on the top plate 13, an upper limit collision head 22 is mounted on the displacement guide rod 21 above the proximity switch 23, and a lower limit collision head 25 is mounted on the displacement guide rod 21 below the proximity switch 23; the bottom surface of the top plate 13 is also provided with a displacement sensor 24, and the sensing end of the displacement sensor 24 is right opposite to the lower limit collision head 25.
In the process that the output end of the lifting oil cylinder 3 drives the pressure head 6 to move up and down, the displacement guide rod 21 and the horizontal plate 42 move up and down along with the pressure head, the upper limit collision head 22 or the lower limit collision head 25 is close to the proximity switch 23 and is timely fed back to the control system after being sensed by the proximity switch 23, so that the lifting oil cylinder 3 stops further continuous action and plays a role in protecting the whole system; and, in the displacement guide arm 21 removal in-process, obtain the displacement in real time by displacement sensor 24 to through the displacement of control system conversion pressure head 6, thereby realize the real-time supervision that pressure head 6 removed the displacement in the experimentation, obtain its real-time position.
The upper limit collision head 22 and the lower limit collision head 25 are both in a roller structure, and hard collision with the proximity switch 23 is avoided.
The top of the pressure head 6 is in threaded connection with the pressure sensor 5, as shown in fig. 4, a clamping groove 62 is formed in the middle of the bottom end of the pressure head 6, a through hole 61 which is horizontal in the axial direction is further formed in the bottom end of the pressure head 6, and the through hole 61 is communicated with the clamping groove 62; the top end of the pressure plate 7 extends upwards into the clamping groove 62, and the external bolt horizontally penetrates through the through hole 61 and the pressure plate 7, so that the pressure head 6 and the pressure plate 7 are fastened; and the clamping groove 62 is connected with the bolt, so that the pressing plate 7 below the pressing head 6 is convenient to replace and maintain and convenient to operate.
As shown in fig. 5 and 6, the moving mechanism 9 has a structure in which: the device comprises a bracket 91 fixedly arranged on the rear side surface of the bottom of a support frame 1, wherein the bracket 91 is of a triangular welding structure, a transverse moving oil cylinder 92 is arranged on the bracket 91, the output end of the transverse moving oil cylinder 92 faces forwards, a sliding table 93 is arranged at the end part of the transverse moving oil cylinder 92, and T-shaped grooves 94 which are arranged at intervals from front to back are formed in the sliding table 93; a slide rail 95 is also arranged between the sliding table 93 and the base 11 at the bottom of the supporting frame 1; a limiting seat 97 is further arranged on the bottom surface of the supporting frame 1 outside the side surface of the sliding table 93 along the sliding direction of the sliding rail 95, limiting switches 98 are respectively arranged at the front end and the rear end of the limiting seat 97, and rotating wheels 99 are respectively arranged on the inner side surfaces of the limiting switches 98; a stroke ram 96 is arranged on the side surface of the sliding table 93, and the stroke ram 96 is positioned between two limit switches 98.
The T-shaped groove 94 is a T-shaped deep groove formed in the sliding table 93, and the supporting seat 81 of the test tool 8 is conveniently mounted through the foundation bolt 82, so that the test tool 8 is fixedly mounted on the sliding table 93.
When the stroke ram 96 contacts with the rotating wheel 99 of any one of the two limit switches 98, the limit switch 98 feeds back information to the control system, so that the sliding table 93 stops further continuous movement.
A base plate is further installed between the slide rail 95 and the base 11, and the base plate is a rectangular thin plate and plays a role in transitional connection.
The device further comprises a control platform 20, wherein the control platform 20 is arranged outside the support frame 1, as shown in fig. 7, the control platform 20 has the following structure: the device comprises a support 201, wherein an operating table 202 is installed on the support 201, a display screen 204 is embedded in the middle of the upper part of the operating table 202, and a plurality of buttons 203 are arranged on the operating table 202 below and at two sides of the display screen 204 at intervals; the display screen 204 and the button 203 are respectively electrically connected with the control system, the moving mechanism 9 and the lifting oil cylinder 3, the movement of the moving mechanism 9 and the lifting oil cylinder 3 is controlled through the corresponding button 203, and the start, the stop, the scram, the alarm and the like of the whole simulation test system are controlled through the button 203.
A hydraulic station 10 for supplying hydraulic oil to the lifting cylinder 3 and the transverse moving cylinder 92 is further arranged, and the hydraulic station 10 is electrically connected with the control system.
The test method of the static simulation test system for the anti-falling device of the lifting protection platform comprises the following steps:
according to the test requirement, one or two of a movable roller 84 and a brake block 85 are installed on the test tool 8;
the moving mechanism 9 drives the test tool 8 to move to the position right below the lifting oil cylinder 3, so that the bottom end of the pressing plate 7 faces the outer side of the movable roller 84;
when the lifting oil cylinder 3 works, the driving pressure head 6 and the pressure plate 7 move downwards, so that the bottom end of the pressure plate 7 approaches to and applies downward force to the movable roller 84, the movable roller 84 rotates relative to the cross beam 87, and the movable roller 84 pushes the brake block 85 to swing upwards until the brake block 85 approaches to and clings to the baffle 86;
the lifting oil cylinder 3 continues to work, force is continuously applied to the movable roller 84 downwards through the pressure head 6 and the pressure plate 7, the movable roller 84 transmits the stress to the brake block 85, the brake block 85 transmits the stress to the baffle 86, and the pressure sensor 5 monitors the force transmitted by the pressure head 6 in real time;
until one of the movable roller 84, the brake shoe 85, or the flapper 86 is failed, the lift cylinder 3 stops operating, and thus the maximum force before failure is obtained by the pressure sensor 5.
The static simulation test system can be arranged in a laboratory or at the tail end of a production line of a production workshop for use, is convenient for static tests of anti-falling devices with various requirements, and is convenient and reliable to operate; the device is particularly suitable for carrying out static stress strength test on a certain part in the anti-falling device.
The first embodiment is as follows:
the movable roller 84 is a rotating wheel in the rotating wheel type anti-falling device; in a static simulation test, a brake block 85 and a baffle 86 are selected, and the static bearing capacity of the movable roller 84 is obtained through the pressure sensor 5 due to the failure of the movable roller 84 in the process that the lifting oil cylinder 3 drives the pressure head 6 to descend and downwards apply force to the movable roller 84 through the pressure plate 7.
Example two:
the movable roller 84 and the brake block 85 are all parts in the anti-falling device; in the static simulation test, the baffle 86 is selected, and the static bearing force is obtained through the pressure sensor 5 due to the failure of the movable roller 84 or the brake block 85 in the process that the lifting oil cylinder 3 drives the pressure head 6 to descend and applies force downwards to the movable roller 84 through the pressure plate 7.
Failure in this embodiment includes the occurrence of a condition such as deformation, cracking, fracture, etc. of the force-receiving member or the force-transmitting member.
The anti-falling device is convenient and reliable in test, low in cost and expense, and capable of greatly assisting in reliable and effective test of the anti-falling device and guaranteeing the safety and reliability of the protection platform.
The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.
Claims (10)
1. The utility model provides a static simulation test system of lift protection platform anti-falling device which characterized in that: the anti-falling device comprises a supporting frame (1), wherein a moving mechanism (9) is arranged on the inner bottom surface of the supporting frame (1), a test tool (8) is arranged on the moving mechanism (9), and an anti-falling device is arranged on the test tool (8); the top of the up-down penetrating supporting frame (1) is provided with a lifting oil cylinder (3), the output end of the lifting oil cylinder (3) faces downwards, the end part of the lifting oil cylinder is provided with a pressure head (6), the bottom of the pressure head (6) is clamped with a pressure plate (7), and the bottom end of the pressure plate (7) is positioned right above the anti-falling device; and a pressure sensor (5) is arranged between the pressure head (6) and the output end of the lifting oil cylinder (3).
2. The static simulation test system for the lifting protection platform anti-falling device of claim 1, characterized in that: the structure of the test tool (8) is as follows: the device comprises a supporting seat (81), wherein vertical beams (88) and inclined struts (83) are arranged on the supporting seat (81) at left and right intervals, a cross beam (87) is jointly arranged between the upper part of the vertical beam (88) and the top of the inclined strut (83), a movable roller (84) is rotatably arranged at the end part, close to the inclined strut (83), of the cross beam (87), and the downward bottom end of a pressing plate (7) applies force to the movable roller (84) downwards so that the movable roller (84) rotates in a vertical plane; a cross beam (87) positioned beside the movable roller (84) is rotatably provided with a brake block (85), and the rotating movable roller (84) applies force to the brake block (85) to make the brake block swing; and a baffle plate (86) for preventing the brake block (85) from swinging.
3. The static simulation test system for the lifting protection platform anti-falling device of claim 2, characterized in that: the movable roller (84) is of a five-star structure, one side of the movable roller (84) is pressed downwards by the pressure plate (7), and the other side of the movable roller (84) applies force upwards to the brake block (85).
4. The static simulation test system for the lifting protection platform anti-falling device of claim 2, characterized in that: the brake block (85) is an eccentric block, and the brake block (85) is driven by the movable roller (84) to deflect upwards; a baffle plate (86) is arranged on a cross beam (87) positioned at the position obliquely above the brake block (85), and the baffle plate (86) blocks the deflection of the brake block (85).
5. The static simulation test system for the lifting protection platform anti-falling device of claim 1, characterized in that: still install guiding mechanism (4) between lift cylinder (3) output and braced frame (1), install lift stop gear (2) between guiding mechanism (4) and braced frame (1) top.
6. The static simulation test system for the lifting protection platform anti-falling device of claim 5, characterized in that: the structure of the supporting frame (1) is as follows: the device comprises a top plate (13) and a base (11) which are arranged at intervals up and down, wherein upright columns (12) are fixedly arranged at four corners between the top plate (13) and the base (11);
the structure of the guide mechanism (4) is as follows: comprises a plurality of guide rods (41) which vertically penetrate through a top plate (13), and horizontal plates (42) are jointly arranged at the bottom ends of the guide rods (41); the output end of the lifting oil cylinder (3) penetrates through the horizontal plate (42) downwards and is fixedly installed, and the lifting limiting mechanism (2) is installed between the horizontal plate (42) and the top plate (13).
7. The static simulation test system for the lifting protection platform anti-falling device of claim 6, characterized in that: the structure of the lifting limiting mechanism (2) is as follows: the device comprises a displacement guide rod (21) fixedly arranged on a horizontal plate (42) through a fastening piece (26), wherein the displacement guide rod (21) extends upwards into a top plate (13), a proximity switch (23) is arranged on the top plate (13), an upper limit collision head (22) is arranged on the displacement guide rod (21) positioned above the proximity switch (23), and a lower limit collision head (25) is arranged on the displacement guide rod (21) positioned below the proximity switch (23); and a displacement sensor (24) is further mounted on the bottom surface of the top plate (13), and the sensing end of the displacement sensor (24) is just opposite to the lower limit ram (25).
8. The static simulation test system for the lifting protection platform anti-falling device of claim 1, characterized in that: the moving mechanism (9) has the structure that: the device comprises a support (91) fixedly arranged on the rear side surface of the bottom of a support frame (1), a transverse moving oil cylinder (92) is arranged on the support (91), the output end of the transverse moving oil cylinder (92) faces forwards, a sliding table (93) is arranged at the end part of the transverse moving oil cylinder, and T-shaped grooves (94) which are arranged at intervals from front to back are formed in the sliding table (93); a sliding rail (95) is further arranged between the sliding table (93) and the bottom of the supporting frame (1); a limiting seat (97) is further arranged on the bottom surface of the supporting frame (1) positioned outside the side surface of the sliding table (93) along the sliding direction of the sliding rail (95), limiting switches (98) are respectively arranged at the front end and the rear end of the limiting seat (97), and rotating wheels (99) are respectively arranged on the inner side surfaces of the limiting switches (98); a stroke collision head (96) is installed on the side face of the sliding table (93), and the stroke collision head (96) is located between the two limit switches (98).
9. The static simulation test system for the lifting protection platform anti-falling device of claim 1, characterized in that: still include and control platform (20), control platform (20) and arrange in the braced frame (1) outside, control platform (20)'s structure is: the multifunctional operating table comprises a support (201), wherein an operating table (202) is installed on the support (201), a display screen (204) is embedded in the middle of the upper part of the operating table (202), and a plurality of buttons (203) are arranged on the operating table (202) below and on two sides of the display screen (204) at intervals; the display screen (204) and the buttons (203) are respectively electrically connected with the control system, the moving mechanism (9) and the lifting oil cylinder (3), and the moving mechanism (9) and the lifting oil cylinder (3) are controlled to act through the corresponding buttons (203).
10. A test method of the static simulation test system of the lifting protection platform anti-falling device of the claim 2 is characterized in that: the method comprises the following steps:
according to the test requirement, one or two of a movable roller (84) and a brake block (85) are installed on the test tool (8);
the moving mechanism (9) drives the test tool (8) to move to the position right below the lifting oil cylinder (3);
when the lifting oil cylinder (3) works, the driving pressure head (6) and the pressure plate (7) move downwards, so that the bottom end of the pressure plate (7) is close to and applies downward force to the movable roller (84), the movable roller (84) rotates relative to the cross beam (87), and the movable roller (84) pushes the brake block (85) to swing until the brake block (85) is close to and clings to the baffle (86);
the lifting oil cylinder (3) continues to work, continues to apply force downwards to the movable roller (84) through the pressure head (6) and the pressure plate (7), and monitors the force transmitted by the pressure head (6) in real time through the pressure sensor (5);
until one of the movable roller (84), the brake block (85) or the baffle (86) fails, the lifting cylinder (3) stops working, so that the maximum force before failure is obtained through the pressure sensor (5).
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