A power detection device and detection method for a crawler electric construction crane

Abstract

The present invention discloses a power detection device for a mountain light crawler electric construction crane; it relates to the field of vehicle power detection, the device comprises a flip ramp frame, a slope top docking platform and a crawler machine to be tested, the flip ramp frame can be flipped and set on the ground, guide wheel assemblies are arranged on the flip ramp frame at both sides of the crawler machine to be tested, safety ropes are arranged on the guide wheel assemblies, each group of the guide wheel assemblies comprises two surface guide wheels and a plurality of back support wheels; the two surface guide wheels are rotatably mounted on the front and rear ends of the flip ramp frame respectively, the back support wheels are spaced below the flip ramp frame, the front and rear ends of both sides of the crawler machine to be tested are provided with hook structures, and the two ends of the safety rope are connected to the two hook structures after passing through the two surface guide wheels; the method uses the above device to complete power detection of the crane; in the present invention, if an accident occurs during the test process, the straightened safety rope will provide opposite tension due to the change in the corresponding direction angle of the crawler machine to be tested, and the crawler machine to be tested will be pulled back in time to prevent it from causing greater side tilt and backward tilt, thereby ensuring the stability and accuracy of the test process.

Description

Technical Field

[0001] The present invention relates to the field of vehicle power detection, and in particular to a power detection device and a detection method for a crawler-type electric construction crane. Background Art

[0002] The infrastructure of the power system mainly includes power stations, substations and various types of transmission lines. The formation of the power system is inseparable from the construction of basic equipment for transmission lines. In order to ensure the effective transmission of electricity, it is necessary to build a corresponding transmission network according to demand. Since my country's power grid is widely distributed and the transmission distance is large, there are many power equipment involved. In the actual construction process, long distances are often required, especially for power construction in mountainous areas. In the actual construction process, the environmental conditions are poor and the surrounding space is greatly restricted. Mountain light crawler cranes are needed to facilitate the auxiliary installation of power equipment (such as power towers, poles, etc.).

[0003] However, when faced with a complex mountainous environment, the construction site is affected by the environment, the roads are rugged, and there are many steep slopes. When modifying and designing a mountain light crawler crane, it is necessary to ensure that the crane has sufficient power when facing the ramp, so as to better adapt to the mountainous environment. When conducting a ramp power test on an ordinary vehicle, it is necessary to build a test ramp with a fixed angle, and then drive the vehicle to see if it can pass the ramp, and detect its corresponding parameters when passing the ramp.

[0004] However, for the light mountain crawler cranes that are in the process of development and improvement, it is necessary to clarify the maximum angle of the ramp they can pass under a certain power, and to conduct actual tests on their driving force, driving resistance, adhesion, vehicle speed, acceleration ability and other parameters when they pass the ramp. Therefore, during the actual test, the angle of the allowed ramp needs to be constantly changed. If the corresponding ramp is repeatedly built, it will be time-consuming and labor-intensive, and not conducive to the actual power detection operation. Therefore, the existing technology uses an angle-adjustable ramp, that is, the corresponding site is built with a steel frame structure and a concrete structure, and the ramp part adopts an integral flippable structure, which is rotated and set on the foundation, and is driven to flip by a hydraulic system to change the angle of the ramp, so as to adapt to the different test requirements required during the design and development of the light mountain crawler crane.

[0005] Since the driving equipment of the mountain light crawler crane is mainly a crawler structure, which is different from the ordinary wheel structure and has a stronger climbing ability, the actual climbing ability of the mountain light crawler crane is required to be stronger in the actual design process, that is, in the actual testing process, the angle of the ramp is larger, so as to adapt to more rugged mountain terrain. At the same time, in order to ensure that the final designed mountain light crawler crane has sufficient power, it is also necessary to test its uniform speed power and acceleration power on the ramp during the actual test to provide effective parameters for the design and improvement. However, since the mountain light crawler crane has more functional designs and the actual structure is more complex, its performance on the ramp is not good. When accelerating upward, it is easy to cause shaking due to inertia and center of gravity problems. In severe cases, it may even cause part of the crawler track to leave the slope. For ordinary earth slopes, the impact caused by the departure and fall back of the mountain light crawler crane will not have any effect. However, for the steel frame structure with angle adjustment, the above impact is likely to cause the entire equipment to vibrate, thereby exacerbating the vibration phenomenon of the mountain light crawler crane during the test, which will affect the actual test results and cause differences from the ramp of ordinary ground structure, which is not conducive to providing effective data for design and improvement. In severe cases, it may even cause the mountain light crawler crane to roll over, causing accidents and affecting the safety of the inspection personnel. Summary of the Invention

[0006] In order to ensure safety when testing the power of a crane, the present application provides a power detection device and a detection method for a crawler electric construction crane.

[0007] The present application provides a power detection device for a crawler-type electric construction crane, which adopts the following technical solution:

[0008] A power detection device for a crawler-type electric construction crane comprises a tilting ramp frame, a slope top docking platform and a crawler-type machine to be tested. The tilting ramp frame can be tilted and set on the ground, and the crawler-type machine to be tested is provided with a crawler-type walking structure.

[0009] The flip ramp is provided with guide wheel assemblies on both sides of the crawler-type machine to be tested, and a safety rope is provided on the guide wheel assemblies. Each set of the guide wheel assemblies includes two surface guide wheels and a plurality of back support wheels.

[0010] The two surface guide wheels are rotatably installed at the front and rear ends of the flip ramp frame, and the rotation axis is set in the horizontal direction; the back support wheels are arranged at intervals below the flip ramp frame, and the safety rope is wrapped around the surface guide wheels and the back support wheels to form a rotating structure. The front and rear ends of both sides of the crawler-type test machine are provided with hook structures, and the two ends of the safety rope are connected to the two hook structures after passing through the two surface guide wheels.

[0011] Optionally, a pre-embedded base is provided at the bottom of the flip ramp frame, the flip ramp frame is rotatably installed in the pre-embedded base, the pre-embedded base is pre-embedded in the ground, and a flip driving device is provided between the pre-embedded base and the flip ramp frame, and the flip driving device is used to drive the flip ramp frame to flip.

[0012] Optionally, a lifting frame is provided at the bottom of the slope top docking platform, and a base is provided on the ground outside the embedded base, the lifting frame is installed on the base, and the slope top docking platform is installed on the top of the lifting frame. The lifting frame drives the slope top docking platform to rise and fall, and a butt plate is rotatably installed on one end of the flip ramp frame corresponding to the slope top docking platform, and an arc-shaped docking structure is fixedly connected to one end of the slope top docking platform corresponding to the flip ramp frame, and the butt plate is overlapped on the surface of the arc-shaped docking structure.

[0013] Optionally, a tensioning structure is provided at the bottom of the flip ramp frame, the tensioning structure includes a tensioning frame, a tensioning wheel is provided on the tensioning frame, the tensioning wheel cooperates with the safety rope, a tensioning drive is provided between the tensioning frame and the flip ramp frame, the tensioning drive is used to drive the tensioning frame close to the safety rope to tension the safety rope; the flip ramp frame is also provided with a track pressure sensing component, the track pressure sensing component is provided in multiple groups, and the multiple groups of track pressure sensing components are evenly arranged on the flip ramp frame at the walking area corresponding to the crawler-type machine to be tested.

[0014] Optionally, the track pressure sensing assembly includes a pressure plate, which is slidably mounted on the flip ramp frame through a guide member, a rubber pad is provided between the pressure plate and the flip ramp frame, and a first pressure sensor is installed between the pressure plate and the flip ramp frame.

[0015] Optionally, a soil simulation layer is provided in the walking area of ​​the flip ramp frame for the crawler-type machine to be tested, and a soil filling groove is provided on the flip ramp frame. The soil filling groove is filled with soil and compacted to form a soil simulation layer.

[0016] Optionally, a guide assembly is provided at the position of the flip ramp frame corresponding to the surface guide wheel, and the guide assembly is arranged on the inner side of the two surface guide wheels. The guide assembly includes a guide frame, which is installed on the flip ramp frame through a support sleeve. The guide frame is slidably inserted in the support sleeve, and the guide frame and the support sleeve are rotated together. The safety rope led out from the surface guide wheel passes through the guide sleeve and is connected to the hook structure; the safety rope between the surface guide wheel and the hook structure is arranged parallel to the flip ramp frame, and a floating elastic part is provided between the guide frame and the support sleeve, and a second pressure sensor is provided between the floating elastic part and the support sleeve, and the second pressure sensor is used to detect the vertical pressure of the safety rope on the guide sleeve.

[0017] Optionally, the track pressure sensing component includes an airbag component, and a plurality of air cavities are provided on the surface of the flip ramp frame. The airbag component is fixedly mounted on the air cavity, and both the airbag component and the air cavity are embedded in the soil simulation layer, wherein the air cavity has a certain height so that the airbag component is relatively close to the surface of the soil simulation layer, and an inflation tube is connected to the air cavity, and an air pressure sensor for detecting the pressure in the air cavity is installed on the inflation tube.

[0018] Optionally, a wire rope net is provided in the filling groove of the flip slope frame, the wire rope net is composed of multiple groups of crisscrossing steel ropes, and each steel rope is fixedly connected to the flip slope frame, and the airbag component is located in the grid holes formed by the crisscrossing steel ropes.

[0019] In a second aspect, the present application provides a power detection method for a crawler electric construction crane, which adopts the following technical solution:

[0020] A method for detecting power of a crawler electric construction crane comprises the following steps:

[0021] Step 1: Adjust the tilting ramp to the required angle according to the test requirements.

[0022] Step 2: Start the crawler-type machine to be tested and drive it to the bottom position on the flip ramp;

[0023] Step 3: Connect the two ends of the safety rope to the front and rear hook structures of the crawler-type machine under test, and adjust the safety rope to make it straight;

[0024] Step 4: Drive the crawler-type machine under test to walk and climb the inverted ramp, and perform constant speed and acceleration tests respectively;

[0025] Step 5: The staff tests the driving speed and driving posture of the crawler machine to be tested at the sidewalks on both sides of the flip ramp;

[0026] Step 6: After the test is completed, release the connection between the safety rope and the hook structure, and drive the crawler-type machine to be tested to the docking platform on the top of the slope.

[0027] In summary, this application has the following beneficial technical effects:

[0028] The beneficial effect of the present invention is that when an accident occurs during the test process of the present invention, the crawler-type machine to be tested tilts or leans back, causing one side or one end of the crawler of the crawler walking structure to tend to deviate from the flip ramp frame, the straightened safety rope will provide opposite tension due to the change in the corresponding direction angle of the crawler-type machine to be tested, and pull the crawler-type machine to be tested back in time to avoid it from tilting and leaning back more, so that the crawler of the crawler walking structure can fit as close to the flip ramp frame as possible, thereby ensuring the stability and accuracy of the test process, ensuring that the corresponding test information can be fully obtained without interruption during the test process, which is conducive to subsequent improvement settings, and can also provide effective protection for the test equipment, reducing the impact of unexpected phenomena of the crawler-type machine to be tested on the flip ramp frame during the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a test scene diagram of the present invention;

[0031] Figure 3 The present invention is based on Figure 2 A magnified view of the flip ramp;

[0032] Figure 4 A schematic diagram of the structure of the flip ramp frame after adding a tensioning structure and a track pressure sensing component to the present invention;

[0033] Figure 5 For the present invention Figure 4 A magnified view of the structure of part A;

[0034] Figure 6 A top view of the flip ramp of the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the present invention after adding a soil simulation layer on the flip slope frame;

[0036] Figure 8 The present invention is based on Figure 7 An enlarged structural diagram of the guide assembly;

[0037] Figure 9 A schematic diagram of another track pressure sensing assembly provided by the present invention in use;

[0038] Figure 10 The present invention is based on Figure 9 A state diagram of the track pressure sensing component when not bearing track pressure;

[0039] Figure 11 This is a top view of the present invention after adding a soil simulation layer on the flip slope frame;

[0040] Figure 12 Flow chart of the detection method of the present invention.

[0041] Description of reference numerals:

[0042] 1. Flip ramp frame; 11. Embedded base; 12. Flip drive device; 13. Plank; 14. Sidewalk; 15. Soil simulation layer; 16. Wire rope net; 2. Slope top docking platform; 21. Lifting frame; 22. Arc docking structure; 3. Crawler-type machine to be tested; 31. Crawler-type walking structure; 32. Hooking structure; 4. Safety rope; 5. Guide wheel assembly; 51. Surface guide wheel; 52. Back support wheel; 6. Tensioning structure; 61. Tensioning frame; 62. Tensioning wheel; 63. Tensioning driver; 7. Track pressure sensing assembly; 71. Pressure plate; 711. Guide member; 712. First pressure sensor; 72. Airbag member; 721. Air cavity; 722. Inflatable tube; 723. Air pressure sensor; 8. Guide assembly; 81. Guide frame; 82. Guide sleeve; 83. Support sleeve; 84. Floating elastic member; 85. Second pressure sensor. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-12 This application is described in further detail.

[0044] The embodiment of the present application discloses a power detection device for a mountain light crawler electric construction crane, comprising a flip ramp frame 1, a slope top docking platform 2 and a crawler machine to be tested 3. The flip ramp frame 1 can be flipped and set on the ground. The crawler machine to be tested 3 includes a crawler walking structure 31. The crawler walking structure 31 is used to support the crawler machine to be tested 3 to walk. A walking area for the crawler machine to be tested 3 is provided on the flip ramp frame 1 (the figure of this embodiment only takes the existing crawler electric construction crane that has not been improved as an example). During the detection, the flip ramp frame 1 is controlled to flip to the required test angle, and then the crawler machine to be tested 3 is started, and the crawler walking structure 31 is used to walk on the surface of the flip ramp frame 1 for testing. During the test, based on The inclination angle of the flip ramp frame 1 is flipped, and then the walking speed, walking power and walking capacity, and traction and cargo carrying capacity of the crawler machine to be tested 3 are tested (for example, using visual recognition equipment, photoelectric sensing equipment and other speed and acceleration detection equipment, etc., the above test equipment can all adopt existing test devices, which will not be explained in detail in this embodiment), and then combined with the power output parameters of the engine of the crawler machine to be tested 3 itself, it is determined whether the climbing power of the crawler machine to be tested 3 is sufficient (for example, at a fixed inclination angle of the flip ramp frame 1, and using a fixed engine output power of the crawler machine to be tested 3, it is determined whether the crawler machine to be tested 3 can travel normally on the flip ramp frame 1; if it cannot travel or the travel speed is too slow, it is insufficient power);

[0045] Furthermore, in order to ensure the stable operation of the crawler-type test machine 3, a group of guide wheel assemblies 5 are respectively provided on the flip ramp frame 1 at a single side of both sides of the crawler-type test machine 3, and a safety rope 4 is provided on the guide wheel assembly 5. Each group of guide wheel assemblies 5 includes two surface guide wheels 51 and a plurality of back support wheels 52. The two surface guide wheels 51 are respectively mounted on the front and rear ends of the flip ramp frame 1 (the forward direction of the safety rope 4 during detection is the front, the reverse direction is the rear, and the direction of the higher end of the flip ramp frame 1 after flipping up is the front), and a plurality of back support wheels 52 are arranged under the flip ramp frame 1. The safety rope 4 is wound around the surface guide wheel 51 and the back support wheel 52 to form a rotary structure. The front and rear ends of the sides are both provided with hook structures 32, which are fixedly arranged on the frame of the crawler walking structure 31 at a lower position. The two ends of the safety rope 4 pass through the two surface guide wheels 51 and are respectively connected to the two hook structures 32 on the corresponding sides of the crawler-type test machine 3, so that the safety rope 4 forms a closed whole. Under the support of the back support wheels 52 and the surface guide wheels 51, the safety rope 4 forms a motion mechanism similar to a belt, and the crawler-type test machine 3 is like a follow-up structure fixed on the belt. Among them, the length of the safety rope 4 needs to be set according to the actual scene, but it needs to be ensured that after the safety rope 4 is docked with the hook structure 32, the safety rope 4 is in a straight state as a whole.

[0046] When an accident occurs during the test, the crawler-type machine to be tested 3 tilts or leans back, causing one side or one end of the crawler track of the crawler walking structure 31 to tend to deviate from the flip ramp frame 1. The straightened safety rope 4 will provide an opposite pulling force due to the corresponding direction angle change of the crawler-type machine to be tested 3, and will pull the crawler-type machine to be tested 3 back in time to prevent it from tilting and leaning back more, so that the crawler track of the crawler walking structure 31 can fit as closely as possible on the flip ramp frame 1, thereby ensuring the stability and accuracy of the test process, ensuring that the corresponding test information can be fully obtained without interruption during the test process, which is conducive to subsequent improvement settings, and can also provide effective protection for the test equipment, reducing the impact of unexpected phenomena of the crawler-type machine to be tested 3 on the flip ramp frame 1 during the test process.

[0047] It should be noted that, first, the connection between the hook structure 32 and the safety cable 4 in this embodiment can adopt a simple hook and ring structure that is easy to disassemble, or an automatic clamping structure such as a hydraulic clamp, or a simple stud and nut structure. The above connection methods are all common solutions for cables and structures to be towed, and can be selected at will in actual use. This embodiment will not be explained in detail. Secondly, the above-mentioned safety cable 4 and guide wheel assembly 5 solution is not required for all test methods. For example, in the early stage of the research and development process, the inclination angle of the flip ramp 1 is small, or the required walking speed of the crawler-type test machine 3 during the test is sufficiently low, or in other cases where the crawler-type test machine 3 will not encounter the above-mentioned accidents in the set test method, the safety cable 4 and guide wheel assembly 5 are not required. Furthermore, in the drawings provided by the present invention, the overall length of the flip ramp 1 is relatively short. In the actual construction process, the actual length of the flip ramp 1 can be increased according to the test requirements to ensure a sufficient climbing test length, thereby obtaining more test parameters.

[0048] In the above embodiment, refer to the attached specification. Figure 2 The bottom of the flip ramp frame 1 is provided with an embedded base 11, and the flip ramp frame 1 is rotatably mounted in the embedded base 11. The embedded base 11 is embedded in the ground, so that the flip ramp frame 1 can be docked with the ground, which is convenient for driving the crawler-type test machine 3 onto the flip ramp frame 1. A flip driving device 12 is provided between the embedded base 11 and the flip ramp frame 1. The flip driving device 12 is used to drive the flip ramp frame 1 to flip. Specifically, the flip driving device 12 can adopt a jacking hydraulic cylinder structure to jack up one end of the flip ramp frame 1 to control the flipping angle of the flip ramp frame 1. Secondly, an auxiliary bracket can be provided between the embedded base 11 and the flip ramp frame 1, that is, after the flip driving device 12 adjusts the angle of the flip ramp frame 1, a corresponding auxiliary bracket is installed at the bottom of the flip ramp frame 1 to support the flip ramp frame 1, thereby improving the stability of the flip ramp frame 1.

[0049] Further, refer to the instructions attached Figure 1 and Figure 2In some detection methods, the crawler-type machine to be tested 3 needs to pass over the top of the flip ramp frame 1 to test other performances. Therefore, the present invention sets a slope top docking platform 2 at the top of the flip ramp frame 1 to enable the crawler-type machine to be tested 3 to pass over the flip ramp frame 1. However, the angle of the flip ramp frame 1 is adjustable, so the height of its end needs to be changed. Therefore, this embodiment also provides the following technical solutions. Specifically, a lifting frame 21 is provided at the bottom of the slope top docking platform 2, and a base is provided on the ground outside the embedded base 11. The lifting frame 21 is installed on the base, and the slope top docking platform 2 is installed on the top of the lifting frame 21. The lifting frame 21 is used to control the lifting and lowering of the slope top docking platform 2, thereby realizing the height control of the slope top docking platform 2 to adapt to and dock the flip ramp. Frame 1, wherein the lifting frame 21 is a commonly used lifting frame structure, and other hydraulic lifting control structures can also be used, as long as the smooth lifting control of the slope top docking platform 2 can be achieved. Therefore, this embodiment will not be explained in detail. Furthermore, in order to ensure the stable docking of the flip ramp frame 1 and the slope top docking platform 2, the flip ramp frame 1 is rotatably installed with a butt plate 13 at one end corresponding to the slope top docking platform 2, and the slope top docking platform 2 is fixedly connected with an arc-shaped docking structure 22 at one end corresponding to the flip ramp frame 1. The butt plate 13 is overlapped on the surface of the arc-shaped docking structure 22, and then when the flip angle of the flip ramp frame 1 and the height of the slope top docking platform 2 change, the lateral distance between the flip ramp frame 1 and the slope top docking platform 2 can be compensated by the overlap of the butt plate 13 and the arc-shaped docking structure 22.

[0050] It should be noted that when the safety rope 4 and the guide wheel assembly 5 are only arranged on the flip ramp frame 1, when the climbing test is completed and the crawler-type test machine 3 is traveling to the slope top docking platform 2, it is necessary to untie the connection between the safety rope 4 and the hook structure 32. The setting of the safety rope 4 and the guide wheel assembly 5 is not limited to being set only on the flip ramp frame 1. If full protection is required, the two surface guide wheels 51 can be respectively set on the ground and the slope top docking platform 2, and corresponding back support wheels 52 can be set at corresponding positions to ensure that the safety rope 4 can form a closed rotating structure. At the same time, a corresponding tensioning structure 6 is set to appropriately adjust the tightness of the safety rope 4 according to the actual formation of the crawler-type test machine 3 to ensure that the crawler-type test machine 3 can safely pass through the test area.

[0051] In order to facilitate the staff to test the climbing power of the crawler-type machine to be tested 3 and to facilitate the installation of corresponding testing equipment, sidewalks 14 are set on both sides of the walking area of ​​the flip ramp frame 1 and the slope top docking platform 2. Visual recognition cameras and displacement sensors are installed on the sidewalks 14 to detect the form status of the crawler-type machine to be tested 3, thereby further improving the accuracy of the judgment of the performance of the crawler-type machine to be tested 3.

[0052] By adopting the above technical solution, when the crawler-type machine to be tested 3 is subjected to a climbing test, in addition to reducing the degree of rollover of the crawler-type machine to be tested 3 during driving and reducing the impact of the crawler-type machine to be tested 3 on the flip ramp frame 1 itself, the flip ramp frame 1 can also be effectively avoided from rolling over, thereby providing good protection for testers, the crawler-type machine to be tested 3 and corresponding testing equipment. In particular, for the crawler-type machine to be tested 3 that is in the process of research and development and improvement, it can ensure that it will not be damaged due to a test accident and affect subsequent testing, thereby reducing research and development costs. In addition, the angle of the flip ramp frame 1 is adjustable, which can adapt to more testing scenarios and provide more testing data.

[0053] Furthermore, this embodiment also provides a protection mechanism, see the attached Figure 4 A tensioning structure 6 is provided at the bottom of the flip ramp frame 1. The tensioning structure 6 includes a tensioning frame 61. A tensioning wheel 62 is provided on the tensioning frame 61. The tensioning wheel 62 cooperates with the safety rope 4. A tensioning driver 63 is provided between the tensioning frame 61 and the flip ramp frame 1. The tensioning driver 63 is used to drive the tensioning frame 61 to tension the safety rope 4. By adopting the above scheme, on the one hand, during the actual installation of the safety rope 4, the tensioning degree of the tensioning frame 61 can be controlled according to actual conditions to adjust the tensioning effect of the safety rope 4. On the other hand, when an unexpected phenomenon such as tilting of the crawler-type machine to be tested 3 is detected, the tensioning frame 61 is controlled to increase the tension of the safety rope 4, thereby providing a recovery force to the crawler-type machine to be tested 3 in a timely manner.

[0054] It should be noted that the tensioning structure 6 can adopt a commonly used tensioning mechanism. For example, the tensioning frame 61 is rotatably installed on the flip ramp frame 1, and the tensioning driver 63 is a flip adjustment hydraulic cylinder. The tensioning frame 61 is driven to flip by the hydraulic cylinder to extend and retract, so as to realize the tension adjustment of the safety rope 4.

[0055] Furthermore, the flip ramp frame 1 is also provided with a track pressure sensing assembly 7, which is used to detect the pressure between the crawler of the crawler walking structure 31 and the flip ramp frame 1. For example, refer to the appendix of the specification. Figure 5 The track pressure sensing assembly 7 includes a pressure plate 71, which is slidably installed on the flip ramp frame 1 through a guide member 711. A rubber pad is provided between the pressure plate 71 and the flip ramp frame 1, and a first pressure sensor 712 is installed between the pressure plate 71 and the flip ramp frame 1. After the crawler walking structure 31 is pressed against the pressure plate 71, the pressure sensor detects the existence of pressure, and can determine whether the crawler of the crawler walking structure 31 is in contact with the flip ramp frame 1 at that position.

[0056] Among them, refer to the instructions attached Figure 6, the track pressure sensing components 7 are set into multiple groups, and the multiple groups of track pressure sensing components 7 are evenly arranged on the flip ramp frame 1 corresponding to the walking area of ​​the crawler-type test machine 3, wherein the surface of the pressure plate 71 is provided with a convex structure to increase friction. Secondly, the crawler of the crawler walking structure 31 is usually provided with anti-skid protrusions. Therefore, the pressure plate 71 is a rectangular structure, and the length of the spacing between the three anti-skid protrusions is at least, ensuring that the pressure plate 71 can be accurately pressurized and will not enter the gap between the crawler protrusions of the crawler walking structure 31. Then, during the driving process of the crawler-type test machine 3, the feeling of the track pressure sensing components 7 at the corresponding parts can be used to know whether the crawler is slipping or not. The actual position and driving posture of the crawler-type machine to be tested 3. At the same time, when the crawler-type machine to be tested 3 produces an unexpected situation such as tilting or leaning back, the corresponding part of the corresponding crawler of the crawler walking structure 31 will have a tendency to break away from the flip ramp frame 1, and then the pressure-bearing plate 71 originally under pressure at this position will be released to a certain extent. At this time, the pressure of the first pressure sensor 712 at this position will change. Based on this change, the actual accident situation of the crawler-type machine to be tested 3 can be judged, and the corresponding tensioning structure 6 can be driven to tension for timely protection. At the same time, the occurrence of the accident and the corresponding parameters can also be recorded to provide powerful parameters for the later improvement of the crawler-type machine to be tested 3.

[0057] In the above embodiment, certain raised patterns can be set on the surface of the flip ramp 1 to simulate the resistance and friction of mountain road conditions. However, the degree of simulation is limited. For this purpose, please refer to the attached manual. Figure 7 and Figure 11 A soil simulation layer 15 is provided on the flip ramp frame 1 in the walking area for the crawler-type test machine 3. Specifically, a fill groove is provided on the flip ramp frame 1, and the fill groove is filled with soil and compacted (a soil-rock mixture with the same mountain soil can be selected. Before the actual test, the flip ramp frame 1 is first leveled, and then filled with soil, and then compacted). Therefore, during the actual test, the actual slope road condition can be better simulated, making the test more in line with the actual situation. At the same time, based on the soil simulation layer 15, water can be sprayed on the soil simulation layer 15 to simulate the slippery state of the road caused by rainy weather or unexpected circumstances for scene simulation testing.

[0058] Furthermore, due to the addition of the soil simulation layer 15, the solution of the pressure plate 71 will affect the soil conditions of the part and affect the test results. For this reason, this embodiment also provides another posture detection situation of the crawler-type machine to be tested 3. For details, please refer to the attached manual. Figure 7 and Figure 8A guide assembly 8 is provided at the position of the flip ramp frame 1 corresponding to the surface guide wheel 51. The guide assemblies 8 are respectively arranged on the adjacent sides of the two surface guide wheels 51. That is, during the test, the surface guide wheel 51 is close to the side of the crawler-type test machine 3. The guide assembly 8 includes a guide frame 81. The guide frame 81 is installed on the flip ramp frame 1 through a support sleeve 83. The guide frame 81 is slidably inserted in the support sleeve 83, and the guide frame 81 and the support sleeve 83 are rotatably matched. The safety rope 4 led out from the surface guide wheel 51 passes through the guide sleeve 82 and is connected to the hook structure 32.

[0059] By adopting the above scheme, the safety rope 4 led out of the surface guide wheel 51 can be guided by means of the support sleeve 83 to prevent the safety rope 4 from being separated from the surface guide wheel 51 due to the change in the walking direction of the crawler-type test machine 3. Furthermore, the safety rope 4 between the surface guide wheel 51 and the hook structure 32 is arranged parallel to the flip ramp frame 1, and a floating elastic member 84 (such as a spring) is arranged between the guide frame 81 and the support sleeve 83. A second pressure sensor 85 is arranged between the floating elastic member 84 and the support sleeve 83. The second pressure sensor 85 is used to detect the vertical pressure of the safety rope 4 on the guide sleeve 82. Specifically, when the crawler-type test machine 3 is walking normally, through With the above arrangement, the safety cables 4 at the front and rear of the crawler-type machine under test 3 are both in a straight state parallel to the flip ramp frame 1. Therefore, when no accident occurs to the crawler-type machine under test 3, the angle of the safety cables 4 relative to the flip ramp frame 1 remains unchanged. However, when the crawler-type machine under test 3 tilts sideways or tilts forward, the safety cables 4 at the corresponding positions are pulled accordingly to tilt. The vertical pressure exerted by the tilted portions on the guide sleeves 82 at the corresponding positions will change. Therefore, by monitoring the data of the second pressure sensors 85 of the four sets of guide assemblies 8, when the detection data of one or more of the second pressure sensors 85 changes, it means that an accident has been detected in the crawler-type machine under test 3.

[0060] Furthermore, for the above-mentioned solution of using the soil simulation layer 15, this embodiment also provides another track pressure sensing component 7. For details, please refer to the attached manual. Figures 9 to 11 The track pressure sensing component 7 includes an airbag component 72. A plurality of air cavities 721 are provided on the surface of the flip ramp frame 1. The airbag component 72 is fixedly installed on the air cavity 721. The airbag component 72 and the air cavity 721 are both embedded in the soil simulation layer 15. The air cavity 721 has a certain height so that the airbag component 72 is relatively close to the surface of the soil simulation layer 15. An inflation tube 722 is connected to the air cavity 721, and the inflation tube 722 is connected to the small red flag device. An air pressure sensor 723 is installed on the air cavity 721. The air pressure sensor 723 is used to detect the pressure in the air cavity 721.

[0061] It should be noted that when filling the soil simulation layer 15, the airbag components 72 are not inflated first. After the soil simulation layer 15 is filled and compacted, air is inflated into each airbag component 72 through the inflation device. At this time, the airbag component 72 bulges and simultaneously lifts up the corresponding position of the soil simulation layer 15 to form a bulge. At this time, the air pressure in the air cavity 721 is stable. When the crawler-type test machine 3 walks, the track of the crawler-type walking structure 31 presses on the corresponding bulge, squeezing the airbag component 72, and the air pressure inside the air cavity 721 increases. The air pressure sensor 723 can accurately identify it. When the crawler-type test machine 3 encounters an accident and causes the track part of the crawler-type walking structure 31 to move away from the flip ramp frame 1, the airbag component 72 at this position will inflate again, the air pressure is restored, and the air pressure sensor 723 can also detect it in time. Therefore, the airbag component 72 solution can still achieve the monitoring and detection effect of the walking of the crawler-type walking structure 31 without affecting the surface simulation condition of the soil simulation layer 15.

[0062] Further, refer to the instructions attached Figure 11 In order to improve the stability of the soil simulation layer 15 in the fill groove of the flip slope frame 1, a wire rope net 16 is provided in the fill groove of the flip slope frame 1. The wire rope net 16 is composed of multiple groups of crisscrossing steel wire rope structures, and each steel wire rope is fixedly connected to the flip slope frame 1. The airbag component 72 is located in the grid holes formed by the crisscrossing steel wire ropes. Then, with the help of the laying of the wire rope net 16, the adhesion and stability of the compacted soil simulation layer 15 on the flip slope frame 1 are improved.

[0063] Refer to the instruction manual Figure 12 The present invention also provides a power detection method for a mountain light crawler electric construction crane, comprising the following steps:

[0064] Step 1: Adjust the tilting ramp 1 to the required angle for testing according to the test requirements;

[0065] Step 2: Start the crawler-type machine to be tested 3 and drive it to the bottom position on the flip ramp 1;

[0066] Step 3: Connect the two ends of the safety rope 4 to the front and rear hook structures 32 of the crawler-type test machine 3, and adjust the safety rope 4 to be in a straight state;

[0067] Step 4: Drive the crawler-type machine under test 3 to walk and climb on the flip ramp 1, and perform constant speed and acceleration tests respectively;

[0068] Step 5: The staff tests the driving speed and driving posture of the crawler-type test machine 3 at the flip walkways 14 on both sides of the flip ramp frame 1, and the control system of the crawler-type test machine 3 obtains the output parameters of its engine in real time. The theoretical driving state corresponding to the engine output parameters (such as whether it can move, the driving speed and acceleration, etc.) is compared with the actual driving state to determine whether the climbing power of the crawler-type test machine 3 meets the theoretical requirements;

[0069] Step 6: After the test is completed, the connection between the safety rope 4 and the hook structure 32 is released, and the crawler-type machine to be tested 3 is driven to move to the docking platform 2 on the top of the slope;

[0070] Step 7: Drive the crawler-type machine to be tested 3 to turn around on the docking platform 2 at the top of the slope, and go downhill from the flip ramp 1 to perform a downhill test.

[0071] It should be noted that the above detection method is not a detection method for the displacement of this device. In actual use, you can also set the detection method yourself according to your needs, and perform driving detection in combination with corresponding detection sensors to obtain other corresponding parameters.

[0072] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A power detection device for a crawler electric construction crane, characterized in that: It includes a flip ramp frame, a slope top docking platform and a crawler-type test machine. The flip ramp frame can be flipped and set on the ground. The crawler-type test machine is provided with a crawler-type walking structure. Guide wheel assemblies are provided on both sides of the crawler-type test machine on the flip ramp frame. Safety ropes are installed on the guide wheel assemblies. Each guide wheel assembly includes two surface guide wheels and several back support wheels. The two surface guide wheels are rotatably installed at the front and rear ends of the flip ramp frame, and the rotation axis is set in the horizontal direction; the back support wheels are arranged at intervals below the flip ramp frame, and the safety rope is wrapped around the surface guide wheels and the back support wheels to form a rotating structure. The front and rear ends of both sides of the crawler-type test machine are provided with hook structures, and the two ends of the safety rope are connected to the two hook structures after passing through the two surface guide wheels.

2. The power detection device for a crawler-type electric construction crane according to claim 1, characterized in that: The bottom of the flip ramp is provided with an embedded base, the flip ramp is rotatably installed in the embedded base, the embedded base is embedded in the ground, and a flip driving device is provided between the embedded base and the flip ramp, which is used to drive the flip ramp to flip.

3. The power detection device for a crawler-type electric construction crane according to claim 2, characterized in that: A lifting frame is provided at the bottom of the slope top docking platform, and a base is provided on the ground outside the embedded base. The lifting frame is installed on the base, and the slope top docking platform is installed on the top of the lifting frame. The lifting frame drives the slope top docking platform to rise and fall. A butt plate is rotatably installed on one end of the flip ramp frame corresponding to the slope top docking platform, and an arc-shaped docking structure is fixedly connected to one end of the slope top docking platform corresponding to the flip ramp frame, and the butt plate is overlapped on the surface of the arc-shaped docking structure.

4. The power detection device for a crawler-type electric construction crane according to claim 3, characterized in that: A tensioning structure is provided at the bottom of the flip ramp frame, which includes a tensioning frame, a tensioning wheel is provided on the tensioning frame, the tensioning wheel cooperates with the safety rope, and a tensioning driver is provided between the tensioning frame and the flip ramp frame, and the tensioning driver is used to drive the tensioning frame close to the safety rope to tension the safety rope; the flip ramp frame is also provided with a track pressure sensing component, and the track pressure sensing component is provided in multiple groups, and the multiple groups of track pressure sensing components are evenly arranged on the flip ramp frame at the walking area corresponding to the crawler-type machine to be tested.

5. The power detection device for a crawler-type electric construction crane according to claim 4, characterized in that: The track pressure sensing assembly includes a pressure plate, which is slidably mounted on the flip ramp frame through a guide member, a rubber pad is provided between the pressure plate and the flip ramp frame, and a first pressure sensor is installed between the pressure plate and the flip ramp frame.

6. The power detection device for a crawler-type electric construction crane according to claim 5, characterized in that: A soil simulation layer is provided in the walking area of ​​the flip ramp frame for the crawler-type machine to be tested, and a soil filling groove is provided on the flip ramp frame. The soil filling groove is filled with soil and compacted to form a soil simulation layer.

7. The power detection device for a crawler-type electric construction crane according to claim 6, characterized in that: Guide assemblies are provided at positions on the flip ramp frame corresponding to the surface guide wheels, and the guide assemblies are provided on the inner sides of the two surface guide wheels. The guide assemblies include a guide frame, which is installed on the flip ramp frame through a support sleeve. The guide frame is slidably inserted in the support sleeve, and the guide frame and the support sleeve are rotated together. The safety rope led out of the surface guide wheel passes through the guide sleeve and is connected to the hook structure; the safety rope between the surface guide wheel and the hook structure is arranged parallel to the flip ramp frame, and a floating elastic part is provided between the guide frame and the support sleeve, and a second pressure sensor is provided between the floating elastic part and the support sleeve. The second pressure sensor is used to detect the vertical pressure of the safety rope on the guide sleeve.

8. The power detection device for a crawler-type electric construction crane according to claim 7, characterized in that: The track pressure sensing component includes an airbag component, and multiple groups of air cavities are provided on the surface of the flip ramp frame. The airbag component is fixedly installed on the air cavity. The airbag component and the air cavity are both embedded in the soil simulation layer. The air cavity has a certain height so that the airbag component is relatively close to the surface of the soil simulation layer. An inflation tube is connected to the air cavity, and an air pressure sensor for detecting the pressure in the air cavity is installed on the inflation tube.

9. The power detection device for a crawler-type electric construction crane according to claim 8, characterized in that: A wire rope net is provided in the filling groove of the flip slope frame. The wire rope net is composed of multiple groups of crisscrossing wire ropes, and each wire rope is fixedly connected to the flip slope frame. The airbag component is located in the grid holes formed by the crisscrossing wire ropes.

10. A method for detecting power of a crawler-type electric construction crane, using the power detection device of a crawler-type electric construction crane according to claim 9, characterized in that: The following steps are involved: Step 1: Adjust the tilting ramp to the required angle according to the test requirements. Step 2: Start the crawler-type machine to be tested and drive it to the bottom position on the flip ramp; Step 3: Connect the two ends of the safety rope to the front and rear hook structures of the crawler-type machine under test, and adjust the safety rope to make it straight; Step 4: Drive the crawler-type machine under test to walk and climb the inverted ramp, and perform constant speed and acceleration tests respectively; Step 5: The staff tests the driving speed and driving posture of the crawler machine to be tested at the sidewalks on both sides of the flip ramp; Step 6: After the test is completed, release the connection between the safety rope and the hook structure, and drive the crawler-type machine to be tested to the docking platform on the top of the slope.

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