Suspended load performance test device

Abstract

The invention provides a suspended load performance test device, which is used for an arm support structure, the arm support structure comprises a suspension arm and an amplitude variation oil cylinder used for driving the suspension arm, the suspended load performance test device comprises a mounting seat, the mounting seat is provided with a mounting rack and an amplitude variation rack, the mounting rack is used for hinging the tail part of the suspension arm, and the amplitude variation rack is used for hinging the amplitude variation oil cylinder; the suspension arm loading mechanism is used for connecting the head of the suspension arm and applying a load to the suspension arm; and the suspension arm adjusting mechanism is connected with the suspension arm loading mechanism, and the suspension arm adjusting mechanism is used for driving the suspension arm loading mechanism to translate along the first horizontal direction or the second horizontal direction. According to the suspended load performance test device, multidirectional structural performance tests can be independently carried out on the suspension arm, and the buckling, rigidity, strength, fatigue and vibration performance of the suspension arm can be fully verified.

Description

Technical Field

[0001] The invention belongs to the technical field of crane arm experiments, and in particular relates to a crane load performance test device. Background Art

[0002] The main structure of a truck crane is the boom, and the lifting function is achieved through the boom. The structural performance of the boom is a key factor in the lifting performance of the truck crane. Therefore, improving the structural performance of the boom and testing the boom are the main tasks of the truck crane.

[0003] After the boom is assembled, it is installed on the chassis of the car to form a complete truck crane. The boom lifting performance test is carried out on the whole vehicle. The whole vehicle test can fully test the operation action debugging, structural strength test, lifting characteristics compliance verification, operation parameter verification and other tests. And it must wait until all the production structural parts are completed and the whole vehicle is completed before the test, and the test cycle is long. And if it is found that the boom strength is not enough, the boom structure is unreasonable, the boom electrical and hydraulic problems, the structural test is unqualified, etc., it needs to be repaired to strengthen the optimization design, or even recalculated, which will seriously affect the progress of the crane and greatly reduce the market competitiveness.

[0004] Moreover, the boom test on the whole vehicle can only verify the whole vehicle lifting performance of the boom of this model, but cannot verify the limit values ​​of the stiffness and strength and other performance of the boom itself, which is a great restriction for the design and product optimization. It is also impossible to further study and test single-section booms and different models of booms with similar structural forms, and collect and compare test data. As a result, it is impossible to use test data to optimize the design procedures and parameters, optimize the boom, and reduce costs and improve performance.

[0005] In order to meet the market requirements and the requirements of relevant national laws and regulations and standards, meet the requirements of design and production for structural optimization, make the ultimate product, improve performance and save costs, it is imperative to improve the design of structure and parts. At the same time, the boom can be installed and disassembled independently, and can be used as a single-section boom as a component, or the boom can be installed as an assembly part. Therefore, it is very necessary to design and manufacture a loading performance test device for the boom of a truck crane to test the buckling, stiffness, strength, fatigue, and vibration performance of the boom structure. Summary of the invention

[0006] The main purpose of the present invention is to provide a hoisting performance test device, aiming to solve the technical problem that it is impossible to perform a hoisting test on a crane arm alone in the prior art.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a load performance test device, which is used for a boom structure, and the boom structure includes a boom and a boom cylinder for driving the boom. The load performance test device includes: a mounting seat, which is provided with a mounting frame and a boom frame, the mounting frame is used to hinge the tail of the boom, and the boom frame is used to hinge the boom cylinder; a boom load mechanism, which is used to connect the head of the boom and apply a load to the boom; a boom adjustment mechanism, which is connected to the boom load mechanism, and the boom adjustment mechanism is used to drive the boom load mechanism to translate along a first horizontal direction or a second horizontal direction.

[0008] In an embodiment of the present invention, the boom loading mechanism includes: a first pulley block installed on the head of the boom; a boom loading member, a second pulley block installed at the output end, the second pulley block is connected to the first pulley block via a load rope, the boom adjustment mechanism is connected to the boom loading member; and a winch for tightening or loosening the load rope.

[0009] In an embodiment of the present invention, the boom loading mechanism further comprises a base plate and a buffer member, the boom loading member is mounted on the base plate, one end of the buffer member is connected to the boom loading member, and the other end of the buffer member is connected to the base plate.

[0010] In an embodiment of the present invention, the boom adjustment mechanism includes: a track assembly and a guide cooperation with the boom load member, the track assembly includes a transverse rail extending along a first horizontal direction and a vertical rail extending along a second direction; a drive assembly is connected to the boom load member, and the drive assembly is used to drive the boom load member to translate along the transverse rail or the vertical rail.

[0011] In an embodiment of the present invention, the driving assembly includes a screw rod and a driving member for driving the screw rod to rotate, and the base plate and the screw rod are threadedly matched.

[0012] In an embodiment of the present invention, the load performance test device further includes: a displacement sensor for detecting displacement information of the boom load member; a controller electrically connected to the displacement sensor, the controller for receiving a displacement signal of the displacement sensor, and the controller is configured as follows:

[0013] Receiving displacement information transmitted by the displacement sensor;

[0014] Determining current position information of the boom load member according to the displacement information;

[0015] Get the hoisting position information of the specified hoisting position;

[0016] Determine whether the boom load member is in place according to the load position information and the current position information;

[0017] When it is determined that the boom load member is in place, the boom adjustment mechanism is shut down.

[0018] In an embodiment of the present invention, the hoisting performance test device further includes a base, the mounting base is detachably mounted on the top of the base, and the base is used to be connected to a foundation.

[0019] In an embodiment of the present invention, a flange ring plate is provided at the bottom of the base, and the flange ring plate and the foundation are detachably connected.

[0020] In an embodiment of the present invention, the boom structure also includes a jib connected to the boom, and the load performance testing device also includes a jib loading mechanism and a jib adjustment mechanism, the jib loading mechanism is connected to the head of the jib and is used to apply a load to the jib, and the jib adjustment mechanism is used to drive the jib loading mechanism to translate along the first horizontal direction or the second horizontal direction.

[0021] In an embodiment of the present invention, the lifting performance testing device also includes an information acquisition module and a data analysis module for installation on the boom structure. The information acquisition module and the boom load mechanism are electrically connected to the information acquisition module. The information acquisition module is used to collect stress and displacement information of the boom structure and send the stress and displacement information to the data analysis module.

[0022] Through the above technical solution, the hoisting performance test device provided by the embodiment of the present invention has the following beneficial effects:

[0023] The mounting frame can be hinged to the boom through the mounting shaft, the boom-changing frame can be hinged to the boom-changing cylinder through the mounting shaft, and the boom-loading mechanism can be driven to translate along the first horizontal direction or the second horizontal direction through the boom-adjusting mechanism until it translates to the designated load position. The boom-loading mechanism applies a load to the boom, and the boom-loading mechanism is driven to translate along the first horizontal direction or the second horizontal direction through the adjusting mechanism, which can make up for the defect that the lateral bending load test and the side load test cannot be performed in the prior art. And there is no need to consider the overturning of the whole vehicle, the test risk is greatly reduced, the structural performance of the boom itself is improved, the product safety performance is improved, and the boom test and performance safety are greatly improved. When the boom structure is produced, it does not need to be assembled into a whole vehicle, and the load performance test can be immediately carried out through the load performance test device, and the design can be improved in time to improve the design and production efficiency, greatly shortening the output time of the whole vehicle, and seizing the opportunity for timely market launch. Moreover, the test methods in the prior art cannot verify the ultimate load-bearing capacity and fatigue test of the boom, and cannot improve the structural optimization and lifting performance of the boom to the extreme, considering the safety issues of the whole vehicle test. The lifting performance test device can test the ultimate load-bearing capacity of the boom through the boom load, and can perform fatigue strength test by continuous loading. In addition, the existing technology cannot fully verify the bending, stiffness, strength, fatigue, and vibration performance of the boom alone; through the lifting performance test device, the boom is tested as a separate component, and the multi-directional structural performance test of the boom can be carried out separately, fully verifying the bending, stiffness, strength, fatigue, and vibration performance of the boom. At present, the test can only be carried out through calculation and finite element analysis of simple working conditions to see whether the boom can meet the requirements, but it cannot further verify the accuracy of the calculated analysis and optimize the calculation capacity; the lifting performance test device can replace the verification of the lifting test that needs to be carried out on the whole vehicle, and comprehensively test the load of each arm section of the single arm, and optimize the design calculation. The mounting frame can be hinged to the boom through the mounting shaft, the boom-changing frame can be hinged to the boom-changing cylinder through the mounting shaft, and the boom-loading mechanism can be driven to translate along the first horizontal direction or the second horizontal direction through the boom-adjusting mechanism until it translates to the designated load position. The boom-loading mechanism applies a load to the boom, and the boom-loading mechanism is driven to translate along the first horizontal direction or the second horizontal direction through the adjusting mechanism, which can make up for the defect that the lateral bending load test and the side load test cannot be performed in the prior art. And there is no need to consider the overturning of the whole vehicle, the test risk is greatly reduced, the structural performance of the boom itself is improved, the product safety performance is improved, and the boom test and performance safety are greatly improved. When the boom structure is produced, it does not need to be assembled into a whole vehicle, and the load performance test can be immediately carried out through the load performance test device, and the design can be improved in time to improve the design and production efficiency, greatly shortening the output time of the whole vehicle, and seizing the opportunity for timely market launch.Moreover, the test methods in the prior art cannot verify the ultimate load-bearing capacity and fatigue test of the boom, and cannot improve the structural optimization and lifting performance of the boom to the extreme, considering the safety issues of the whole vehicle test. The lifting performance test device can test the ultimate load-bearing capacity of the boom through the boom load, and can perform fatigue strength test by continuous loading. In addition, the existing technology cannot fully verify the bending, stiffness, strength, fatigue, and vibration performance of the boom alone; through the lifting performance test device, the boom is tested as a separate component, and the multi-directional structural performance test of the boom can be carried out separately, fully verifying the bending, stiffness, strength, fatigue, and vibration performance of the boom. At present, the test can only be carried out through calculation and finite element analysis of simple working conditions to see whether the boom can meet the requirements, but it cannot further verify the accuracy of the calculated analysis and optimize the calculation capacity; the lifting performance test device can replace the verification of the lifting test that needs to be carried out on the whole vehicle, and comprehensively test the load of each arm section of the single arm, and optimize the design calculation.

[0024] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 is a schematic structural diagram of a load performance test device at a viewing angle according to an embodiment of the present invention;

[0027] Figure 2 is a structural schematic diagram of a hoisting performance test device according to an embodiment of the present invention at another viewing angle;

[0028] Figure 3 is a schematic structural diagram of a mounting base of a load performance test device according to an embodiment of the present invention at a viewing angle;

[0029] Figure 4 is a structural schematic diagram of a mounting base of a hoisting performance test device according to an embodiment of the present invention at another viewing angle;

[0030] Figure 5 Schematic diagram of the structure of the arm load mechanism of the load performance test device according to one embodiment of the present invention.

[0031] Description of Reference Numerals

[0032] Label Name Label Name

[0033] 100 Loading performance test device 24 Loading rope

[0034] 1 Mounting Block 25 Winch

[0035] 11 Mounting frame 26 Buffer

[0036] 12 Luffing frame 3 bottom plate

[0037] 2 Boom load mechanism 4 Base

[0038] 21 First pulley block 41 Flange plate

[0039] 22 Boom Loading Part 200 Boom

[0040] 23 Second pulley block 210 Luffing cylinder DETAILED DESCRIPTION

[0041] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0042] The following describes a hanging performance test device according to the present invention with reference to the accompanying drawings.

[0043] like Figures 1 to 5 As shown, in an embodiment of the present invention, a boom structure is used, the boom structure includes a boom 200 and a boom cylinder 210 driving the boom 200, and the load performance test device 100 includes a mounting seat 1, a boom load mechanism 2 and a boom adjustment mechanism, the mounting seat 1 is provided with a mounting frame 11 and a boom frame 12, the mounting frame 11 is used to articulate the tail of the boom 200, and the boom frame 12 is used to articulate the boom cylinder 210; the boom load mechanism 2 is used to connect the head of the boom 200 and apply a load to the boom 200; the boom adjustment mechanism is connected to the boom load mechanism 2, and the boom adjustment mechanism is used to drive the boom load mechanism 2 to translate along the first horizontal direction or the second horizontal direction.

[0044] The mounting frame 11 in this embodiment can be hinged to the boom 200 through the mounting shaft, and the amplitude changing frame 12 can be hinged to the amplitude changing cylinder 210 through the mounting shaft. The boom load mechanism 2 can be driven to translate along the first horizontal direction or the second horizontal direction through the boom adjustment mechanism until it translates to the specified load position. The boom load mechanism 2 applies a load to the boom 200. The boom load mechanism 2 is driven to translate along the first horizontal direction or the second horizontal direction through the adjustment mechanism, which can make up for the defect that the lateral bending load test and the side load test cannot be performed in the prior art. And there is no need to consider the overturning of the whole vehicle, the test risk is greatly reduced, the structural performance of the boom 200 itself is improved, the product safety performance is improved, and the test and performance safety of the boom 200 are greatly improved. When the boom structure is produced, it does not need to be assembled into a whole vehicle. The load performance test can be immediately carried out through the load performance test device 100 in this embodiment, and the design can be improved in time to improve the design and production efficiency, greatly shorten the output time of the whole vehicle, and seize the opportunity for timely market launch. Moreover, the test method in the prior art, considering the safety of the whole vehicle test, cannot verify the ultimate load-bearing capacity and fatigue test of the boom 200, and cannot improve the structural optimization and lifting performance of the boom 200 to the extreme. The lifting performance test device 100 in this embodiment can test the ultimate load-bearing capacity of the boom 200 through the load of the boom 200, and can perform fatigue strength test by continuous loading. In addition, the flexure, stiffness, strength, fatigue, and vibration performance of the boom 200 that cannot be fully verified separately in the prior art; through the lifting performance test device 100 in this embodiment, the boom 200 is tested as a separate component, and the multi-directional structural performance test of the boom 200 can be performed separately, which fully verifies the flexure, stiffness, strength, fatigue, and vibration performance of the boom 200. At the current stage, the test can only be carried out to determine whether the boom 200 can meet the requirements under simple working conditions through calculation and finite element analysis, but it cannot further verify the accuracy of the calculated analysis and optimize the computing power. The load performance test device 100 in this embodiment can replace the verification of the load test that needs to be performed on the entire vehicle, and comprehensively test the load of each boom section of the single boom to optimize the design calculation.

[0045] Specifically, the load force of the boom load mechanism 2 can be changed from large to small or from small to large through the controller to achieve vibration of the boom 200, thereby conducting a vibration performance test.

[0046] In one embodiment, the boom load mechanism 2 includes a first pulley block 21, a boom load member 22 and a winch 25. The first pulley block 21 is installed at the head of the boom 200. The output end of the boom load member 22 is installed with a second pulley block 23, which is connected to the first pulley block 21 through a load rope 24. The boom adjustment mechanism is connected to the boom load member 22. The winch 25 is used to tighten or loosen the load rope 24. During the translation movement of the boom load member 22, the winch 25 retracts and releases the length of the load rope 24 to adapt to the position change. The boom load member 22 can use a load cylinder or an actuator, and the load rope 24 can be a wire rope. In this embodiment, a second pulley block 23 is installed on the upper part of the boom load member 22, which is connected to the first pulley block 21 at the head of the boom 200 through a load rope 24. The actuator applies tension to tighten the load rope 24, and the load rope 24 acts on the first pulley block 21 and the second pulley block 23. At the same time, the winch 25 tightens the wire rope load rope 24 to load the boom 200. The controller can control the boom load member 22 and the winch 25 to tighten the load rope 24 synchronously.

[0047] like Figure 2 As shown, the boom load mechanism 2 further includes a base plate and a buffer 26. The boom load 22 can be mounted on the base plate through a load seat. One end of the buffer 26 is connected to the boom load 22, and the other end is connected to the base plate. The buffer 26 in this embodiment can be a spring. A plurality of buffers 26 can be arranged at intervals along the circumference of the boom load 22. The plurality of buffers 26 are connected to the boom load 22 and the base plate together, so that the boom load 22 can always remain vertical. The base plate and the winch seat can be mounted on the bottom plate 3, and the bottom plate 3 can be pre-buried in the foundation.

[0048] Specifically, the boom adjustment mechanism includes a track assembly and a drive assembly. The track assembly and the boom load member 22 are guided and matched, and the track assembly includes a transverse rail extending along a first horizontal direction and a vertical rail extending along a second direction; the drive assembly is connected to the boom load member 22, and the drive assembly is used to drive the boom load member 22 to translate along the transverse rail or the vertical rail.

[0049] In this embodiment, a horizontal rail and a vertical rail are included. A load seat can be provided at the bottom of the boom load member 22, and a winch seat can be provided at the bottom of the winch 25. The boom load member 22 can be detachably connected to the load seat, and the winch 25 can be detachably connected to the winch seat, which can facilitate the replacement and maintenance of the boom load member 22 and the winch 25. A roller that rolls with the track assembly can be provided at the bottom of the load seat. The boom load member 22 is guided by the horizontal rail and the vertical rail, which can ensure the accuracy of the boom load member 22 being translated to the specified loading position.

[0050] In one embodiment, the driving assembly includes a screw and a driving member for driving the screw to rotate, and the base plate and the screw are threadedly matched. The driving member can be a motor, and the adjustment mechanism drives the screw through the motor, and the screw drives the base plate to move, so that the arm load member 22 reaches the specified hanging position. After the base plate is fastened by a nut, the arm load member 22 can be moved to different amplitude positions.

[0051] It should be noted that the load performance test device 100 further includes a displacement sensor and a controller. The displacement sensor is used to detect the displacement information of the boom load member 22; the controller is electrically connected to the displacement sensor and is used to receive the displacement signal of the displacement sensor. The controller is configured as follows:

[0052] Receiving displacement information transmitted by the displacement sensor;

[0053] Determine the current position information of the boom load member 22 according to the displacement information;

[0054] Get the hoisting position information of the specified hoisting position;

[0055] Determine whether the boom load member 22 is in place according to the load position information and the current position information;

[0056] When it is determined that the boom load member 22 is in place, the boom adjustment mechanism is shut down.

[0057] The displacement sensor in this embodiment can be a wire box installed on the boom load 22, and the position of the boom load 22 can be precisely adjusted by the displacement sensor and the controller. The motor drives the screw rod, which drives the base plate to move. After reaching the specified load position, the base plate can be tightened by the nut, and the boom load 22 can be controlled to load. Through the precise control of the load position, the load performance test device 100 can make the whole vehicle working condition equivalent to the bench test working condition, and realize the boom 200 as a component kit for more comprehensive performance testing.

[0058] like Figures 1 to 3 As shown, the hoisting performance test device 100 also includes a base 4, and the mounting seat 1 can be detachably mounted on the top of the base 4, and the base 4 is used to connect to the foundation. Two parallel triangular plates are arranged on the left and right sides of the mounting frame 11 in this embodiment, and the structure is more stable. The base 4 is cylindrical, and the top surface size of the base 4 is larger than the cross-sectional size of the mounting seat 1, and the height of the mounting frame 11 is higher than the height of the amplitude frame 12. The mounting seat 1 and the base 4 can be detachably installed, which can facilitate the replacement of the mounting seat 1, and the interchangeability is strong. Different mounting seats 1 can be made according to the size of the hinge point of the boom 200 to be suitable for the boom 200 of different products.

[0059] It should be noted that the base 4 is not limited to this shape, structure and connection method, as long as it can be installed on the foundation or device for reasonable detachable connection. The mounting base 1 can also be other structural forms, as long as it can be perfectly connected to the base 4, and the connection method is not limited to bolt connection, and other connection forms only need to maintain stability; the mounting frame 11 and the amplitude frame 12 can be frame-type, plate-type or other forms, as long as the size of the two hinges and the strength and stiffness of the structural parts are guaranteed.

[0060] like Figure 3 As shown, a flange ring plate 41 is provided at the bottom of the base 4, and the flange ring plate 41 is detachably connected to the foundation. The bottom of the mounting base 1 is surrounded by threaded holes, which can be connected and fixed with the bolt holes of the upper cover plate of the base 4 by bolts. The base 4 serves as the connecting bearing body of the entire lifting performance test device 100. The lower end of the base 4 is provided with a lower flange ring plate 41, and the flange ring plate 41 is provided with bolt holes around it. The foundation connects the base 4 to the device on the foundation with bolts. This device can be a bearing platform installed on the foundation, or a pre-buried platform embedded with bolts, etc., which can be fixedly connected to the base 4.

[0061] It can be understood that the boom structure also includes a jib connected to the boom 200, and the load performance test device 100 also includes a jib loading mechanism and a jib adjustment mechanism. The jib loading mechanism is connected to the head of the jib and is used to apply a load to the jib. The jib adjustment mechanism is used to drive the jib loading mechanism to translate along the first horizontal direction or the second horizontal direction. The jib loading mechanism can have the same structure as the boom loading mechanism 2, and the jib adjustment mechanism can have the same structure as the boom adjustment mechanism. The load member of the jib loading mechanism can be a loading cylinder. The jib in this embodiment is subjected to load through a loading cylinder installed on a slide rail. The loading cylinder can slide freely in the longitudinal and transverse directions on the slide rail, and can load a fixed force, load a heavy load, and load in other forms. The load performance test device 100 in this embodiment can not only perform a load performance test on the boom 200, but also perform a load performance test on the jib, and has stronger versatility.

[0062] In one embodiment, the load performance test device 100 also includes an information acquisition module and a data analysis module for installation on the boom structure. The information acquisition module and the boom load mechanism 2 are electrically connected to the information acquisition module. The information acquisition module is used to collect stress and displacement information of the boom structure and send the stress and displacement information to the data analysis module. The information acquisition module in this embodiment may include a stress sensor and a displacement sensor. The head, middle and tail of the boom 200 may be provided with stress sensors and displacement sensors. The data analysis module may be a computer or a cloud server. The performance test device of the boom 200 in this embodiment is easy to manufacture, and the structural parts are common and low in cost. Therefore, the design and process ensure that the device can be quickly manufactured into a finished product.

[0063] Specifically, when it is determined that the boom structure needs to be tested, the part to be tested on the boom structure is polished to form a mounting surface after being polished smooth, and stress plates or other detection sensors to be tested are affixed. The information acquisition module is connected to the signal line, and the other end of the signal line is connected to a tester such as a stress strain tester or a sensor tester; the tester can be fixed on the boom 200, and a transmitting antenna for transmitting signals can be provided on the tester. The instrument receiver of the tester can be connected to a data analysis module such as a computer via a data cable, and the data analysis module can be operated to search for the tester and make signal connections. The data analysis module can be operated to set parameters and save test data.

[0064] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0065] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A load performance test device, used for a boom structure, the boom structure comprising a boom (200) and a boom cylinder (210) for driving the boom (200), characterized in that: The hoisting performance test device (100) comprises: The mounting seat (1) is provided with a mounting frame (11) and a luffing frame (12), wherein the mounting frame (11) is used for articulating the tail of the boom (200), and the luffing frame (12) is used for articulating the luffing cylinder (210); A boom loading mechanism (2) for connecting to the head of the boom (200) and applying a load to the boom (200); The boom adjustment mechanism is connected to the boom loading mechanism (2), and the boom adjustment mechanism is used to drive the boom loading mechanism (2) to translate along a first horizontal direction or a second horizontal direction.

2. The hoisting performance test device according to claim 1, characterized in that: The boom loading mechanism (2) comprises: A first pulley block (21) mounted on the head of the boom (200); A boom load member (22), the output end of which is provided with a second pulley block (23), the second pulley block (23) being connected to the first pulley block (21) via a load rope (24), and the boom adjustment mechanism being connected to the boom load member (22); A winch (25) is used to tighten or loosen the load rope (24).

3. The hoisting performance test device according to claim 2, characterized in that: The boom loading mechanism (2) further comprises a base plate and a buffer component (26), the boom loading component (22) being mounted on the base plate, one end of the buffer component (26) being connected to the boom loading component (22) and the other end being connected to the base plate.

4. The hoisting performance test device according to claim 3, characterized in that: The boom adjustment mechanism comprises: A track assembly, the track assembly and the boom load member (22) are guided and matched, the track assembly comprising a transverse rail extending along a first horizontal direction and a vertical rail extending along a second direction; A driving assembly is connected to the boom load member (22), and the driving assembly is used to drive the boom load member (22) to translate along the transverse rail or the vertical rail.

5. The hoisting performance test device according to claim 4, characterized in that: The driving assembly comprises a screw rod and a driving member for driving the screw rod to rotate, and the base plate and the screw rod are threadably matched.

6. The hoisting performance test device according to claim 3, characterized in that: The hoisting performance test device (100) further comprises: A displacement sensor, used for detecting displacement information of the boom load member (22); A controller is electrically connected to the displacement sensor, and is used to receive a displacement signal from the displacement sensor. The controller is configured as follows: Receiving displacement information transmitted by the displacement sensor; Determining current position information of the boom load member (22) according to the displacement information; Get the hoisting position information of the specified hoisting position; Determining whether the boom load member (22) is in place according to the hoisting position information and the current position information; When it is determined that the boom load member (22) is in place, the boom adjustment mechanism is shut down.

7. The hoisting performance test device according to any one of claims 1 to 6, characterized in that: The hanging performance test device (100) further comprises a base (4), the mounting seat (1) is detachably mounted on the top of the base (4), and the base (4) is used to be connected to a foundation.

8. The hoisting performance test device according to claim 7, characterized in that: A flange ring plate (41) is provided at the bottom of the base (4), and the flange ring plate (41) and the foundation are detachably connected.

9. The hoisting performance test device according to any one of claims 1 to 6, characterized in that: The boom structure also includes a jib connected to the boom (200), and the load performance test device (100) also includes a jib loading mechanism and a jib adjustment mechanism, wherein the jib loading mechanism is connected to the head of the jib and is used to apply a load to the jib, and the jib adjustment mechanism is used to drive the jib loading mechanism to translate along a first horizontal direction or a second horizontal direction.

10. The hoisting performance test device according to any one of claims 1 to 6, characterized in that: The hoisting performance test device (100) further comprises an information acquisition module and a data analysis module for being installed on the boom structure, the information acquisition module and the boom load mechanism (2) being electrically connected to the information acquisition module, the information acquisition module being used to acquire stress and displacement information of the boom structure, and sending the stress and displacement information to the data analysis module.

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