Power detection device and detection method for crawler-type electric construction crane

Abstract

The invention discloses a power detection device of a mountain light crawler-type electric building crane. Relates to the field of vehicle power detection, and comprises a turnover slope frame, a slope crest butt joint platform and a crawler-type to-be-detected machine, the turnover slope frame is arranged on the ground in a turnover mode, guide wheel assemblies are arranged on the turnover slope frame and located on the two sides of the crawler-type to-be-detected machine, and safety cables are erected on the guide wheel assemblies. Each guide wheel assembly comprises two surface guide wheels and a plurality of back face supporting wheels. The two surface guide wheels are rotationally installed at the front end and the rear end of the overturning slope frame respectively, the back supporting wheels are arranged below the overturning slope frame at intervals, hook structures are arranged at the front ends and the rear ends of the two sides of the crawler-type machine to be tested respectively, and the two ends of the safety cable are connected with the two hook structures respectively after bypassing the two surface guide wheels; according to the method, the device is used for completing power detection on the crane; when an accident occurs in the testing process, the straightened safety cable can provide opposite pulling force due to the angle change of the crawler-type machine to be tested in the corresponding direction, the crawler-type machine to be tested is pulled back in time, the crawler-type machine to be tested is prevented from generating larger side inclination and backward inclination, and then the stability and accuracy of the testing process are guaranteed.

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 facing the complex terrain of the mountainous environment, the construction site is affected by the environment, the roads are rugged, and there are many steep slopes. When modifying and designing the 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 mountain environment. When ordinary vehicles are conducting ramp power tests, it is necessary to build a fixed-angle test ramp, 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 that it can pass under a certain power, and to conduct actual tests on its driving force, driving resistance, adhesion, vehicle speed, acceleration ability and other parameters when it passes the ramp. Therefore, during the actual test, the angle of the 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 prior art 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 testing requirements required during the design and development of the light mountain crawler crane.

[0005] Since the driving device 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, so as 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 complicated, its ramp When accelerating, it is easy to shake due to inertia and center of gravity problems. In severe cases, it may even cause part of the crawler track to leave the ramp. For ordinary earth slopes, the impact caused by the departure and fall back of the mountain light crawler crane will not have any effect, but for the steel frame structure with angle adjustment, the above impact is easy to cause the entire equipment to vibrate, thereby aggravating the vibration phenomenon of the mountain light crawler crane during the test, which will affect the actual test results and cause differences from ordinary ground structure ramps, 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 overturn, causing accidents and affecting the safety of 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 electric construction crane, which adopts the following technical solution:

[0008] A power detection device for a crawler type electric construction crane comprises a flip ramp frame, a slope top docking platform and a crawler type machine to be tested, wherein the flip ramp frame can be flipped 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 frame is provided with guide wheel assemblies at both sides of the crawler-type machine to be tested, and a safety rope is arranged 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 end and the rear end of the flip ramp frame, and the rotation axis is arranged in the horizontal direction; the back support wheels are arranged at intervals below the flip ramp frame, and the safety rope is wound around the surface guide wheels and the back support wheels to form a rotating structure. The front end and the rear end 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 around the two surface guide wheels.

[0011] Optionally, a pre-embedded base is provided at the bottom of the flip ramp frame, and 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 strap is rotatably installed at 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 strap 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 arranged in multiple groups, and the multiple groups of track pressure sensing components are evenly arranged on the flip ramp frame corresponding to the walking area of ​​the tracked 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 arranged 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 layer is filled in the soil filling groove and compacted to form a soil simulation layer.

[0016] Optionally, guide assemblies are provided at positions on the flip ramp frame corresponding to the surface guide wheels, and the guide assemblies are arranged on the inner sides of the two surface guide wheels. The guide assembly includes a guide frame, which is installed on the flip ramp frame through a supporting sleeve, the guide frame is slidably inserted in the supporting sleeve, and the guide frame and the supporting sleeve are rotatably matched, and 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, a floating elastic member is arranged between the guide frame and the supporting sleeve, and a second pressure sensor is arranged between the floating elastic member and the supporting 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, a plurality of air cavities are arranged on the surface of the flip ramp frame, the airbag component is fixedly mounted on the air cavity, the airbag component and the air cavity are both 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, an inflation tube is connected in 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 ramp frame, the wire rope net is composed of multiple groups of criss-crossed steel ropes, and each steel rope is fixedly connected to the flip ramp frame, and the airbag component is located in the grid holes formed by the criss-crossed steel ropes.

[0019] In the 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: According to the test requirements, adjust the flip ramp to the required angle for the test;

[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 to be tested, and adjust the safety rope to make it in a straight state;

[0024] Step 4: drive the crawler-type machine to be tested to walk and climb on the flip ramp, and perform constant speed and acceleration tests respectively;

[0025] Step 5: The staff tests the driving speed and driving posture of the crawler-type 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 includes 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 an opposite pulling force due to the change in the corresponding direction angle of the crawler-type machine to be tested, and the crawler-type machine to be tested will be pulled back in time to avoid it from tilting and leaning back more, so that the crawler of the crawler walking structure can fit as closely as possible on the flip ramp frame, thereby ensuring the stability and accuracy of the test process, ensuring that the corresponding test information can be fully obtained during the test process without interruption, which is conducive to later 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 It 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] Fig. 9 A schematic diagram of another track pressure sensing assembly provided by the present invention in use;

[0038] Fig.10 The present invention is based on Fig. 9 A state diagram of the track pressure sensing component when not subjected to track pressure;

[0039] Fig.11 A top view of the present invention after adding a soil simulation layer on the flip slope frame;

[0040] Fig.12 The present invention is a flow chart of the detection method.

[0041] Description of reference numerals:

[0042] 1. Flip ramp frame; 11. Embedded base; 12. Flip drive device; 13. Board; 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 comprises a crawler walking structure 31. The crawler walking structure 31 is used to support the crawler machine to be tested 3 to walk. The flip ramp frame 1 is provided with a walking area for the crawler machine to be tested 3 to perform a walking test (the diagram of this embodiment only takes the existing crawler electric construction crane that is not improved as an example). During the detection, the flip ramp frame 1 is controlled to flip to the required angle for the test, and then the crawler machine to be tested 3 is started, and the crawler machine to be tested walks on the surface of the flip ramp frame 1 with the help of the crawler walking structure 31 to perform the test. During the test, based on The tilt angle of the flip ramp 1 is adjusted, and then the walking speed, walking power, walking capacity, and traction and cargo carrying capacity of the crawler machine 3 to be tested 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 use existing test devices, and this embodiment will not explain too much), and then combined with the power output parameters of the engine of the crawler machine 3 to be tested, determine whether the climbing power of the crawler machine 3 to be tested is sufficient (for example, at a fixed tilt angle of the flip ramp 1, and using a fixed engine output power of the crawler machine 3 to be tested, determine whether the crawler machine 3 to be tested can travel normally on the flip ramp 1, if it cannot travel or the travel speed is too slow, then the power is insufficient);

[0045] Furthermore, in order to ensure the stable operation of the crawler-type machine to be tested 3, a group of guide wheel assemblies 5 are respectively arranged on one side of the two sides of the crawler-type machine to be tested 3 on the flip ramp frame 1, and a safety rope 4 is arranged 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 installed at the front and rear ends of the flip ramp frame 1 (the forward direction of the safety rope 4 during detection is the front, and the reverse direction is the rear, and the direction of the higher end of the flip ramp frame 1 after being flipped up is the front), and a plurality of back support wheels 52 are arranged below 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 rotating 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 are connected to the two hook structures 32 on the corresponding sides of the crawler machine 3 after passing through the two surface guide wheels 51, 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 machine 3 is like a follower structure fixed on the belt. 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 connected 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, and 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 change in the corresponding direction angle of the crawler-type machine to be tested 3, and will promptly pull the crawler-type machine to be tested 3 back to avoid it from tilting or leaning back further, 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, firstly, the connection between the hook structure 32 and the safety cable 4 referred to in this embodiment can adopt a simple hook and ring structure, which is easy to disassemble, or an automatic clamping structure, such as a hydraulic clamping claw or the like, or a simple stud nut structure. The above connection methods are all commonly used schemes for cables and structures to be towed, and can be selected by oneself in actual use. This embodiment will not explain too much. Secondly, the above-mentioned safety cable 4 and guide wheel assembly 5 are not required to be used in all test methods. For example, in the early stage of the research and development process, the inclination angle of the flip ramp frame 1 is small, or the walking speed of the crawler-type machine to be tested 3 required in the test process is small enough, and in other cases where the crawler-type machine to be tested 3 will not have the above-mentioned accidents in the set detection method, the safety cable 4 and the guide wheel assembly 5 are not required. Furthermore, in the drawings provided by the present invention, the overall length of the flip ramp frame 1 is short. In the actual construction process, the actual length of the flip ramp frame 1 can be increased according to the test requirements to ensure that there is sufficient climbing test length, so as to obtain more detection parameters.

[0048] In the above-mentioned embodiments, 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 installed 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 also 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 and improve the stability of the flip ramp frame 1.

[0049] For further information, please refer to the attached manual. 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 allow the crawler-type machine to be tested 3 to pass over the flip ramp frame 1, but 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 set at the bottom of the slope top docking platform 2, and a base is set 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, so this embodiment will not be explained in detail. Further, 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 strap 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, and the strap 13 is overlapped on the surface of the arc-shaped docking structure 22. 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 strap 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 machine to be tested 3 is traveling to the docking platform 2 on the top of the slope, 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 only arranged on the flip ramp frame 1. If full protection is required, the two surface guide wheels 51 can be respectively arranged on the ground and the docking platform 2 on the top of the slope, and corresponding back support wheels 52 can be arranged 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 arranged to appropriately adjust the tightness of the safety rope 4 according to the actual formation of the crawler-type machine to be tested 3 to ensure that the crawler-type machine to be tested 3 can safely pass through the test area.

[0051] In order to facilitate the staff to test the climbing power of the crawler machine 3 to be tested 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 machine 3 to be tested, thereby further improving the accuracy of judging the performance of the crawler machine 3 to be tested.

[0052] By adopting the above-mentioned technical scheme, when the crawler-type machine to be tested 3 is subjected to a climbing test, in addition to being able to reduce the rollover degree of the crawler-type machine to be tested 3 during driving and reduce 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 prevented from rolling over, thereby providing good protection for testers, the crawler-type machine to be tested 3 and corresponding testing equipment, especially for the crawler-type machine to be tested 3 that is in the process of research and development and improvement, thereby ensuring that it will not be damaged due to a test accident and affect subsequent testing, thereby reducing research and development costs, and the angle of the flip ramp frame 1 is adjustable, thereby being able to 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, and the tensioning structure 6 includes a tensioning frame 61, and 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, and 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, in the actual installation process of the safety rope 4, the tensioning degree of the tensioning frame 61 can be controlled according to the actual situation to adjust the tensioning effect of the safety rope 4. On the other hand, when it is detected that the crawler-type machine to be tested 3 has an unexpected phenomenon such as tilting, the tensioning frame 61 is controlled to increase the tension of the safety rope 4, thereby timely providing a restoring tension to the crawler-type machine to be tested 3.

[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 flipped by the hydraulic cylinder telescopically driving the tensioning frame 61 to be flipped, so that the tension adjustment of the safety rope 4 can be achieved.

[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 track of the crawler walking structure 31 and the flip ramp frame 1. For example, refer to the attached manual. Figure 5 The track pressure sensing assembly 7 includes a pressure plate 71, which is slidably mounted on the flip ramp frame 1 through a guide member 711, a rubber pad is arranged 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 it can be determined 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 arranged in 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 machine to be tested 3, wherein the surface of the pressure plate 71 is provided with a protrusion structure to increase friction, and 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 above 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, and then during the driving process of the crawler-type machine to be tested 3, the track pressure sensing components 7 at the corresponding parts can be used to feel whether the crawler is moving. 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 has unexpected conditions such as tilting or leaning back, the corresponding part of the corresponding track of the crawler-type walking structure 31 will have a tendency to detach from the flip ramp frame 1, and then the pressure 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 unexpected 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 unexpected situation 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 frame 1 to simulate the resistance and friction of mountain road conditions. However, the degree of simulation is limited. For this reason, please refer to the attached manual. Figure 7 and Fig.11 A soil simulation layer 15 is provided on the flip ramp frame 1 in the walking area for the crawler-type machine to be tested 3. Specifically, a soil filling groove is provided on the flip ramp frame 1, and the soil filling groove is filled with soil and compacted (a soil-rock mixture with the same soil as the mountain soil can be selected. Before the actual detection, the flip ramp frame 1 is first laid flat, and then the soil layer is filled and compacted). Therefore, during the actual detection, the actual slope road condition can be better simulated, so that the detection is 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 to perform a scene simulation test.

[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 effect. For this reason, this embodiment also provides another posture detection situation of the crawler-type machine to be tested 3. For details, refer to the attached manual. Figure 7 and Figure 8A guide assembly 8 is provided at the position corresponding to the surface guide wheel 51 on the flip ramp frame 1. 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 machine to be tested 3. The guide assembly 8 includes a guide frame 81, which 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 is rotatably matched with the support sleeve 83. The safety rope 4 led out of 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 machine to be tested 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 machine to be tested 3 is walking normally, through With the above arrangement, the safety ropes 4 at the front and rear of the crawler-type machine to be tested 3 are in a straight state parallel to the flip ramp frame 1. Therefore, when no accident occurs to the crawler-type machine to be tested 3, the angle of the safety rope 4 relative to the flip ramp frame 1 remains unchanged. However, when the crawler-type machine to be tested 3 tilts sideways or leans forward, the safety rope 4 at the corresponding position will be pulled to tilt accordingly, and the vertical pressure of the guide sleeve 82 at the corresponding position by the tilted portion will change. Therefore, by monitoring the data of the second pressure sensors 85 of the four groups of guide assemblies 8, when the detection data of one or more second pressure sensors 85 changes, it means that an accident has been detected in the crawler-type machine to be tested 3.

[0060] Further, for the above-mentioned solution of using the soil simulation layer 15, this embodiment also provides another track pressure sensing component 7, for details, refer to the attached specification. Figures 9 to 11 The track pressure sensing component 7 includes an airbag component 72. A plurality of air cavities 721 are arranged on the surface of the flip ramp frame 1. The airbag component 72 is fixedly mounted 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. The inflation tube 722 is connected to the small red flag device. An air pressure sensor 723 is installed on the air cavity 722. 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, the airbag components 72 are inflated through the inflation equipment. At this time, the airbag components 72 swell up and simultaneously lift up the corresponding 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 machine 3 to be tested walks, the track of the crawler-type walking structure 31 presses on the corresponding bulge. When the airbag component 72 is squeezed, the air pressure inside the air cavity 721 increases, and the air pressure sensor 723 can accurately identify it. When the crawler-type machine 3 to be tested has 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 swell up again, and the air pressure will be restored. The air pressure sensor 723 can also detect it in time. Therefore, the solution of the airbag component 72 can still monitor and detect the walking of the crawler-type walking structure 31 without affecting the surface simulation condition of the soil simulation layer 15.

[0062] For further information, please refer to the attached manual. Fig.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 arranged in the fill groove of the flip slope frame 1. The wire rope net 16 is composed of a plurality of groups of criss-crossed wire rope structures, and each wire rope is fixedly connected to the flip slope frame 1. The airbag member 72 is located in the grid holes formed by the criss-crossed 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 Fig.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: According to the test requirements, adjust the flip ramp 1 to flip to the angle required for the test;

[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 on the crawler-type machine to be tested 3, and adjust the safety rope 4 to make it in a straight state;

[0067] Step 4: drive the crawler-type machine to be tested 3 to walk and climb the inverted ramp frame 1, and perform constant speed and acceleration tests respectively;

[0068] Step 5: The staff tests the driving speed and driving posture of the crawler machine 3 at the turning sidewalks 14 on both sides of the turning ramp frame 1, and the control system of the crawler machine 3 obtains the output parameters of its engine in real time, and compares the theoretical driving state (such as whether it can walk, the walking speed and acceleration, etc.) corresponding to the output parameters of the engine with the actual driving state to determine whether the climbing power of the crawler 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 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 frame 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 the device. In actual use, the detection method can be set according to needs, and driving detection can be performed in combination with corresponding detection sensors to obtain other corresponding parameters.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope 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 machine to be tested. The flip ramp frame can be flipped and set on the ground, and the crawler-type machine to be tested is provided with a crawler-type walking structure. Guide wheel assemblies are arranged on both sides of the crawler-type machine to be tested on the flip ramp frame, and safety ropes are arranged on the guide wheel assemblies. Each set of guide wheel assemblies includes two surface guide wheels and a plurality of back support wheels. The two surface guide wheels are rotatably installed at the front end and the rear end of the flip ramp frame respectively, and the rotation axis is arranged in the horizontal direction; the back support wheels are arranged at intervals below the flip ramp frame, and the safety rope is wound around the surface guide wheels and the back support wheels to form a rotating structure. The front end and the rear end 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 around the two surface guide wheels.

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

3. The power detection device of 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 strap is rotatably installed at 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 strap 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 is characterized in that: 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 driver is provided between the tensioning frame and the flip ramp frame, the tensioning driver is used to drive the tensioning frame to approach the safety rope to tension the safety rope; a track pressure sensing component is also provided on the flip ramp frame, the track pressure sensing component is arranged 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 arranged 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. A power detection device for a crawler type electric construction crane according to claim 5, characterized in that: A soil simulation layer is arranged in the walking area of ​​the flip ramp frame for the crawler-type machine to be tested, and a soil filling groove is arranged on the flip ramp frame. The soil layer is filled in the soil filling groove and compacted to form a soil simulation layer.

7. A 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 supporting sleeve, and the guide frame is slidably inserted in the supporting sleeve, and the guide frame and the supporting sleeve are rotatably matched, and 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, a floating elastic member is arranged between the guide frame and the supporting sleeve, and a second pressure sensor is arranged between the floating elastic member and the supporting sleeve, and 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 a plurality of air cavities are arranged 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, wherein 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. A power detection device for a crawler electric construction crane according to claim 8, characterized in that: A wire rope net is arranged in the soil filling groove of the flip slope frame. The wire rope net is composed of a plurality of groups of crisscrossed 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 crisscrossed 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 as claimed in claim 9, characterized in that: The following steps are involved: Step 1: According to the test requirements, adjust the flip ramp to the required angle for the test; 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 to be tested, and adjust the safety rope to make it in a straight state; Step 4: drive the crawler-type machine to be tested to walk and climb on the flip ramp, and perform constant speed and acceleration tests respectively; Step 5: The staff tests the driving speed and driving posture of the crawler-type 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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