Universal erecting structural member load simulation device

Abstract

According to the universal erecting structural member load simulation device, an experiment platform combined frame adopts a building block type modular design, a top cross beam is connected with two side frames, each side frame is composed of a stand column and a cross beam, and the height of the stand column can be adjusted by assembling a stand column heightening module; and the cross beam connecting interfaces are uniformly distributed along the height direction, so that the height of the cross beam can be conveniently adjusted, and the requirements of tested pieces with different specifications on the height of the experimental platform are met. The frames on the two sides can move along the trapezoidal groove base, so that the span is flexibly adjusted to meet the requirements of tested pieces of different specifications on the length of the experimental platform. An experiment platform combination frame of the load simulation device can carry out loading tests on a launching tube structure and two tested cylinders at the same time, and a loading cylinder and the tested cylinders can move along a top cross beam and a trapezoid groove base respectively and are fixed, so that force acting points of the two cylinders on an erecting arm structure can be flexibly adjusted. Therefore, simulation testing of multi-point loads of different parts of the erecting arm is achieved, and the load working condition of the erecting arm structure under the action of deflection force can be simulated in an asymmetric loading mode. And by adopting a force sensor, a code disc and an electric limiting device, the loading process is more accurate and safer. On the basis of the method, the cost of hardware facilities for load testing of the erecting structural members of different specifications can be greatly reduced, and the method has the important advantages of high universality, high precision, high reliability and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of load simulation devices, and is suitable for the field of load simulation of vertical structure members such as hoisting arms and ladders. BACKGROUND

[0002] A vertical structure member is a large arm-shaped structure member driven by a hydraulic or electric actuator to realize vertical erection or swing, which is usually composed of a vertical arm structure and a linear actuator, and is widely used in engineering machinery and heavy logistics fields such as hoisting arms, fire ladders, and wind turbine tower assembly. As the core load-bearing component of the vertical device, the structural strength directly determines the vertical ability and affects the stability of the vertical process; at the same time, the actuator driving the vertical structure member greatly affects the response performance of the vertical process. In order to ensure that the vertical device meets the working requirements, it is necessary to test the load simulation of the vertical structure member and its actuator in advance to obtain the load capacity and vertical stability of the vertical structure member. How to load the vertical structure member and complete the load capacity and actuator performance test at the same time is the key of the vertical structure member load simulation device. In addition, due to different requirements of vertical devices in different fields or different working conditions, the structural characteristics and parameters of the vertical structure member present a diversified trend, and how to realize the load simulation test of vertical structure members and linear actuators of different specifications is also a key problem for the generalization of the load simulation device. SUMMARY

[0003] In view of the above problems, the purpose of the present application is to provide a universal vertical structure member load simulation device, which provides a load simulation test platform for vertical structure members of various specifications, can simulate the force state of the vertical arm and the load state of the linear actuator in the vertical process of the vertical structure member, and test whether the structural strength of the vertical arm under a certain load can meet the use requirements and the response speed and running stability of the linear actuator under a certain load, thereby providing protection for the vertical operation of the vertical device in a safe and stable manner. The load simulation device provided by the present application adopts a modular design in the form of building blocks, which can adapt to the loading of different parts of vertical arms of different lengths, and can realize the driving test of two linear actuators (double channels), thereby greatly reducing the load simulation test cost of vertical structure members of different specifications as a kind of vertical structure member load simulation device.

[0004] To this end, the application is a kind of universal erecting structure load simulation device, comprising: trapezoidal groove base, triangular support frame, column, beam one, column heightening module, beam two, top beam fixed joint, top beam, loading cylinder, loading cylinder tail ear seat, loading cylinder end ear seat, support column, measured cylinder one, measured cylinder two, erecting arm structure, measured cylinder one tail ear seat, measured cylinder two tail ear seat, measured cylinder tail fixed seat, measured cylinder one end ear seat, measured cylinder two end ear seat, measured cylinder end fixed seat, loading cylinder end force sensor, measured cylinder one end force sensor, measured cylinder two end force sensor, erecting arm structure fixed ear seat, electrical limiting device, erecting arm structure transition ear seat, code disc. Among them, the trapezoidal groove base, the triangular support frame, the column, the beam one, the column heightening module, the beam two, the top beam fixed joint and the top beam jointly constitute the experimental platform combined frame; the loading cylinder, the loading cylinder tail ear seat, the loading cylinder end ear seat, the erecting arm structure, the measured cylinder one tail ear seat, the measured cylinder two tail ear seat, the measured cylinder tail fixed seat, the measured cylinder one end ear seat, the measured cylinder two end ear seat, the measured cylinder end fixed seat and the erecting arm structure fixed ear seat jointly constitute the loading device.

[0005] In order to meet the test of different length erecting arm structures and different stroke measured cylinders, the experimental platform combined frame adopts the modular design of building blocks, and the length and height are flexibly adjusted by assembling and disassembling the frame module and moving the frame structure. The combined frame is connected by the top beam through the left and right side frames, the left and right side frames are composed of columns, beams one and beams two, the top beam is connected to the top beam fixed joints at both ends of the top beam through bolts, and is further connected to the upper beams two of the left and right side frames through bolts. The left and right side frames can be moved along the direction of the trapezoidal groove to adjust the distance between them, and according to the different span of the two side frames, different length specifications of the beams can be spliced to form the top beam to meet the connection requirements of the frame. The top beam is provided with an interface connected with the loading cylinder tail ear seat in the length direction, which can meet the loading requirements of different parts of the erecting arm structure. The column bottom platform connection of the two side frames and the connection with the beam two are supported by triangular support seats, which can ensure that the frame has sufficient support strength under load conditions. The column part adjusts the height of the column through the combined heightening module to realize the height adjustment of the top beam, and the column and the column heightening module are provided with uniform interfaces in the height direction. The beams one and two can be adjusted in height along the existing column and column heightening module according to the load simulation requirements. If the height does not meet the requirements, the column heightening module can be added to realize large range height adjustment. Through the modular strategies of column module combination, two side frame distance adjustment, multi-specification beam connection, etc., suitable loading frame is provided for various specifications of erecting structure, which has high universality.

[0006] In addition to providing flexible frame combination and adjustment methods, the device is also designed with multiple loading strategies. The experimental platform combination frame can provide single-channel (single test cylinder) loading tests and dual-channel (two test cylinders) loading tests, realizing loading tests on the erecting arm structure under various load conditions. In the loading tests of the erecting arm and the test cylinders, both the loading cylinder and the test cylinder load the erecting arm structure, thereby achieving the effect of simultaneous loading on multiple parts of the erecting arm structure. The evenly distributed interfaces provided by the top crossbeam and the trapezoidal groove base in the frame allow the loading cylinder and the test cylinder to adjust their positions, thereby loading multiple parts at different locations on the erecting arm structure. A code disk is set between the transition lug and the fixed lug of the erecting arm structure. Combined with the force sensors at the ends of the loading cylinder and the test cylinder, it is possible to accurately simulate the change of loading force with the erection angle, and test the strength of the erecting arm structure and the driving performance of the test cylinder during the erection process. The dual-channel loading test function enables the device of this invention to provide deflection loads to the erecting arm structure, thereby testing the strength performance of the erecting arm structure under deflection force. This working condition can be obtained when the output of the two cylinders is inconsistent in dual-channel testing or when the position of the tested cylinder is not centered in single-channel testing. Multi-cylinder loading and asymmetric loading can provide a wide range of loading methods, simulating the complex working conditions of the erecting structure in actual operation, and realizing multi-angle loading simulation testing of the erecting structure.

[0007] To ensure the erecting boom structure is tested within a specified safe angle range, in addition to the angle reference provided by the encoder, an electrical limit device is installed between the transition lugs and the fixing lugs of the erecting boom structure. The electrical limit device mainly consists of two proximity switches and a blocking strip that rotates with the erecting boom structure. Its limiting angle range can be adjusted by adjusting the positions of the proximity switches.

[0008] The experimental platform frame adopts a modular design similar to building blocks, with adjustable length and height. The positions of the loading cylinder and the cylinder under test are flexibly adjustable. The use of force sensors, encoders, and electrical limit devices makes the loading process more accurate and safer.

[0009] Preferably, a triangular support is provided at the connection between the crossbeam and the column to enhance the strength of the experimental platform assembly frame;

[0010] Preferably, the columns, beams, triangular support bases, and trapezoidal groove bases of the experimental platform assembly frame are all made of high-strength steel.

[0011] Preferably, all bolts and fasteners used are high-strength bolts;

[0012] The utility model is a kind of general erecting structural member load simulation device, and the experimental platform combination frame adopts the modular design of building blocks, and the top beam is connected to both sides frame, and each side frame is composed of stand column and beam, and the stand column is provided with the connecting interface with beam along the height direction to facilitate the height adjustment of beam, in addition, stand column heightening module can be additionally provided to meet the height requirement of different specifications measured member to experimental platform.Both side frames can be moved along trapezoidal groove base, and the span of both side frames is flexibly adjustable to meet the length requirement of different specifications measured member to experimental platform.The experimental platform combination frame of load simulation device can simultaneously load test for erecting arm structure and two measured cylinders, and loading cylinder and measured cylinder can be moved and fixed along top beam and trapezoidal groove base, so that the force point of two cylinders on erecting arm structure can be flexibly adjusted, to realize the simulation test of multiple point load of different parts of erecting arm.The adoption of force sensor, code disc and electrical limiting device makes loading process more accurate and safe.Through the flexible assembly mode of movable frame, the loading strategy of multiple cylinders and multiple positions and various safety protection mechanisms at connecting place, the loading simulation with strong universality, various working conditions, accurate simulation and high reliability for erecting arm structure is realized. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be described below in conjunction with the drawings. Among them:

[0014] Figure 1 It is the general layout of general erecting structural member load simulation device according to an embodiment of the utility model;

[0015] Figure 2 It is the connection schematic diagram of measured cylinder, erecting arm structure and loading cylinder according to an embodiment of the utility model.

[0016] Figure 3 It is the connection schematic diagram of erecting arm structure according to an embodiment of the utility model; DETAILED DESCRIPTION

[0017] The specific embodiments of the utility model will be described in detail below in conjunction with the drawings. It should be understood that the embodiments explained below are only exemplary, and not limitative.

[0018] As Figure 1As shown, the general vertical structure load simulation device includes: trapezoidal groove base 1, triangular support seat 2, column 3, beam one 4, column heightening module 5, beam two 6, top beam fixed joint 7, top beam 8, loading cylinder tail lug seat 9, loading cylinder 10, loading cylinder end lug seat 11, support column 12, measured cylinder one 13, measured cylinder two 14, vertical arm structure 15, measured cylinder one tail lug seat 16, measured cylinder two tail lug seat 17, measured cylinder tail fixed seat 18, measured cylinder one end lug seat 19, measured cylinder two end lug seat 20, measured cylinder end fixed seat 21, loading cylinder end force sensor 22, measured cylinder one end force sensor 23, measured cylinder two end force sensor 24, vertical arm structure fixed lug seat 25, electrical limiting device 26, vertical arm structure transition lug seat 27, code disc 28.

[0019] As shown in Figure 1 For the general test requirements, the experimental platform combination frame adopts a modular design like building blocks. Four columns 3 are fixed on the trapezoidal groove base 1 through trapezoidal bolts. The side and bottom surfaces of the triangular support seat 2 are bolted to the side of the column 3 and the trapezoidal groove base 1, respectively. Two triangular support seats 2 are arranged at the root of each column 3 to enhance the root strength and anti-overturning ability of the column 3. The beam one 4 and the beam two 6 are bolted to the columns 3 at both ends, respectively. The columns 3 and the column heightening module 5 are uniformly arranged with connection interfaces of the beam one 4 and the beam two 6 in the height direction, so the fixed height of the beam one 4 and the beam two 6 can be flexibly adjusted up and down. If the height of the column 3 and the column heightening module 5 still does not meet the use requirements, the column heightening module 5 can be continuously added on the column heightening module 5. The top beam structure includes two top beam fixed joints 7 and a top beam 8. The two ends of the top beam 8 are bolted to the top beam fixed joints 7 at both ends, respectively. The top beam fixed joints 7 are bolted to the beam two 6. The column 3 can be moved along the trapezoidal groove base 1 to adjust the length of the experimental platform combination frame. At this time, the corresponding span top beam 8 can be selected for connection.

[0020] As shown in Figure 2As shown, the loading cylinder 10 is connected with the loading cylinder tail ear seat 9 and the loading cylinder end ear seat 11 through the pin shaft at both ends, the loading cylinder tail ear seat 9 is connected with the top beam 8 through the bolt, the top beam 8 is provided with the connection interface along the length direction, the loading cylinder tail ear seat 9 can be moved along the length direction of the top beam 8 and fixed to meet the requirement of loading different parts of the vertical arm structure 15. The loading cylinder end ear seat 11 is a replaceable component to adapt to different vertical arm structures 15, and is fixed to the vertical arm structure through the bolt. The measured cylinder one 13 and the measured cylinder two 14 are fixed on the measured cylinder end fixed seat 21 through the measured cylinder one end ear seat 19 and the measured cylinder two end ear seat 20 respectively, and the measured cylinder end fixed seat 21 is connected with the vertical arm structure 15 through the bolt. The measured cylinder one 13 and the measured cylinder two 14 are fixed on the measured cylinder tail fixed seat 18 through the measured cylinder one tail ear seat 16 and the measured cylinder two tail ear seat 17 respectively, and the measured cylinder tail fixed seat 18 can be moved along the trapezoidal groove base and then fixed through the bolt to meet the requirement of loading different parts of the vertical arm structure 15. The measured cylinder one end ear seat 19, the measured cylinder two end ear seat 20, the measured cylinder end fixed seat 21, the measured cylinder one tail ear seat 16 and the measured cylinder two tail ear seat 17 are replaceable components to adapt to different specifications of the vertical arm structure 15, the measured cylinder one 13 and the measured cylinder two 14.

[0021] As shown in the drawings, Figure 3 As shown, the vertical arm structure 15 is connected with the vertical arm structure transition ear seat 27 through the bolt, the vertical arm structure transition ear seat 27 is connected with the vertical arm structure fixed ear seat 25 through the pin shaft, and the code disc 28 and the electrical limiting device 26 are arranged between the two. The angle range of the electrical limiting device 26 can be adjusted by changing the position of the proximity switch. The vertical arm structure fixed ear seat 25 is fixedly connected with the beam one 4 through the bolt.

[0022] Based on the disclosure, many variations in the configuration and sequence of operation of the illustrated features will be apparent to those skilled in the art. Thus, it is to be understood that various alterations and modifications can be made of the patent without departing from the spirit and scope of the claims subject matter.

Claims

1. A universal load simulation device for erecting structural components, characterized in that... include: Trapezoidal groove base (1), triangular support seat (2), column (3), crossbeam one (4), column heightening module (5), crossbeam two (6), top crossbeam fixing joint (7), top crossbeam (8), loading cylinder tail ear seat (9), loading cylinder (10), loading cylinder end ear seat (11), support column (12), cylinder under test one (13), cylinder under test two (14), lifting arm structure (15), cylinder under test one tail ear seat (16), cylinder under test two tail ear seat (17), cylinder under test tail fixing seat (18), cylinder under test one end ear seat (19), cylinder under test two end ear seat (20), cylinder under test end fixing seat (21), loading cylinder end force sensor (22), cylinder under test one end force sensor (23), cylinder under test two end force sensor (24), lifting arm structure fixing ear seat (25), electrical limit device (26), lifting arm structure transition ear seat (27), encoder (28); The trapezoidal groove base (1), triangular support base (2), column (3), crossbeam one (4), column heightening module (5), crossbeam two (6), top crossbeam fixing joint (7), and top crossbeam (8) form a modular frame for the load simulation device experimental platform. The ends of crossbeam one (4) and crossbeam two (6) are bolted to the columns (3) at both ends. The ends of the top crossbeam (8) are bolted to the top crossbeam fixing joints (7) at both ends. The top crossbeam fixing joints (7) are connected by bolts... Bolts are fixed to the second crossbeam (6), and the crossbeam is provided with a loading cylinder mounting interface to provide support for the loading system; the loading cylinder tail lug (9), loading cylinder (10), loading cylinder end lug (11), cylinder under test (13), cylinder under test (24), erecting arm structure (15), cylinder under test end lug (19), cylinder under test end lug (20), and cylinder under test end fixing seat (21) together constitute the loading test module. The two ends of the loading cylinder (10) are respectively connected to the loading cylinder tail lug (9), loading cylinder (10), cylinder under test end lug (11), cylinder under test end lug (12), cylinder under test end fixing seat (21) by pins. The cylinder end lugs (11) are connected, and the loading cylinder tail lugs (9) are bolted to the mounting interface of the top crossbeam (8). The ends of the tested cylinder one (13) and the tested cylinder two (14) are respectively bolted to the tested cylinder end fixing seat (21) through the tested cylinder one end lugs (19) and the tested cylinder two end lugs (20). The tested cylinder end fixing seat (21) is bolted to the erecting arm structure (15). The tails of the tested cylinder one (13) and the tested cylinder two (14) are respectively bolted to the tested cylinder one tail lugs (19) and the tested cylinder two end lugs (20). 6) The tail end lug (17) of the cylinder under test is bolted to the tail end fixed seat (18) of the cylinder under test. The lifting arm structure (15) is loaded by the three cylinders to realize the simulation test of the strength and working effect of the lifting structure under different working conditions. The loading cylinder end force sensor (22), the cylinder under test end force sensor (23), the cylinder under test end force sensor (24), the electrical limit device (26) and the code disk (28) constitute the sensing module, which transmits the loading force and rotation angle information in real time during the loading test.

2. The load simulation device for erecting structural members according to claim 1, characterized in that, The experimental platform frame is assembled using a modular method, with each component connected by bolts. It can be flexibly adjusted according to the dimensions of the erected structural parts being measured. The combination of the column (3) and the column heightening module (5) can adjust the height of the experimental platform, enabling adaptive loading tests of hydraulic cylinders with different strokes. The connection interfaces of crossbeam one (4) and crossbeam two (6) are evenly distributed along the height direction, so that the fixed height of the two crossbeams can be adjusted up and down. The four columns (3) can provide reliable support for the entire frame and can move along the trapezoidal groove base (1) and pass through the ladder. The bolts are fixed on the trapezoidal groove base (1). When the column (3) is moved along the trapezoidal groove base (1), the length of the test platform can be adjusted by selecting the top crossbeam (8) of different lengths. The side and bottom of the triangular support (2) are fixedly connected to the side of the root of the column (3) and the trapezoidal groove base (1) by bolts, which enhances the strength and anti-tipping ability of the column. The entire combined frame can add or remove modules and adjust the spacing and installation position according to the size of the erecting structure to be tested, so as to meet the testing requirements of different lengths of erecting arms and different strokes of the tested cylinder.

3. The load simulation device for erecting structural members according to claim 1, characterized in that, The loading cylinder tail lug (9) can be moved and fixed along the length of the top crossbeam (8), and the test cylinder tail fixing seat (18) can be moved along the trapezoidal groove base (1) and fixed with bolts to meet the loading requirements of different parts of the erecting arm structure (15); in addition to meeting the precise conventional loading test of different specifications of erecting arm structures (15), test cylinder one (13) and test cylinder two (14), it can also apply inconsistent load forces to test cylinder one (13) and test cylinder two (14) to make the erecting arm structure (15) be subjected to deflection torque, thereby providing deflection force working condition test, and meeting the requirements of the erecting arm structure (15). Simulation requirements of different load modes for boom structure (15); Loading cylinder end lug (11), cylinder one end lug (19), cylinder two end lug (20), cylinder end fixing seat (21), cylinder one tail lug (16) and cylinder two tail lug (17) are all replaceable parts to adapt to the testing of different specifications of boom structure (15), cylinder one (13) and cylinder two (14); By using different positions, different loading methods and different specifications of parts, the loading test module can test various working conditions for boom structure components of different sizes, and has extremely high versatility.

4. The load simulation device for erecting structural members according to claim 1, characterized in that, The loading cylinder end force sensor (22), the test cylinder one end force sensor (23), and the test cylinder two end force sensor (24) collect the hydraulic cylinder loading force information in real time during the loading process, thereby accurately adjusting the loading parameters and judging the load capacity of the erecting structure; the transition lug (27) of the erecting arm structure and the fixed lug (25) of the erecting arm structure are provided with a code disk (28) and an electrical limit device (26), which can output the rotation angle information of the erecting arm structure (15) to ensure that the displacement of the erecting arm is within a safe range; the sensing module composed of multiple sensors can visualize the loading process parameters, improving the safety and reliability of the loading test process.

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