Crane operation settlement test device

Abstract

The invention relates to the technical field of crane testing, in particular to a crane operation settlement test device which comprises an outer frame fixing ring, telescopic supporting structures are installed on the left side face and the right side face of the outer frame fixing ring correspondingly, settlement monitoring structures are installed at the two ends of the lower side of each telescopic supporting structure correspondingly, and a material conveying ring is rotationally inserted into the front face of the outer frame fixing ring; a plurality of material conveying grooves are formed in the inner ring face of the material conveying ring, a balance weight cylinder is arranged on the inner ring side of the outer frame fixing ring, a storage box is arranged on the lower side of the balance weight cylinder, balance weight particles are added into the storage box, the lower end of the storage box is inserted into the inner ring face of the outer frame fixing ring, two vertical rods are fixed to the outer surface of the storage box, and two sleeve plates are fixed to the side face of the outer circumference of the balance weight cylinder. The material conveying ring rotates to drive the material conveying groove to rotate, when the material conveying groove rotates to communicate with the upper end of the discharging barrel, balance weight particles in the material conveying groove fall into the balance weight barrel through the discharging barrel, the weight of the material particles in the balance weight barrel is gradually increased, and the pressure borne by the vehicle plate is conveniently controlled.

Description

Technical Field

[0001] The present invention relates to the technical field of crane testing, and more particularly to a crane operation settlement test device. Background Art

[0002] A crane, also known as an overhead crane, gantry crane, or hoist, is a multi-action lifting machine that vertically lifts and horizontally transports heavy objects within a certain range. According to its structure and performance, it can generally be divided into four categories: light and small lifting equipment, bridge-type lifting machinery, jib-type cranes, and cableway cranes. The working characteristic of lifting equipment is intermittent movement, that is, the corresponding mechanisms for actions such as material picking, transportation, and unloading alternate during a working cycle. Cranes are becoming more and more widely developed and used in the market. A truck-mounted crane generally installs the lifting structure above the vehicle deck, and the vehicle deck is connected to the wheels through a suspension structure. When the crane is hoisting, the vehicle deck sinks due to the gravity of the material.

[0003] Chinese Patent Publication No. CN112179694A discloses a crane detection and experiment platform, including a horizontally arranged support mounting plate. Support guide cylinders are vertically arranged at the four corners of the support mounting plate. Support mounting grooves are arranged on the left and right sides above the support mounting plate. A lifting mounting plate is horizontally arranged directly above the left support mounting groove. A lifting transmission cylinder is vertically arranged at the middle position of the support mounting groove opposite to the lifting mounting plate. A support limit rotating sleeve is vertically arranged at the middle position of the upper end of the lifting transmission cylinder. Through the hidden steering and moving structure, the device can be conveniently transferred, and the detection stability of the device is ensured when it is retracted. Through the rotating misaligned mounting structure, the rapid mounting and unloading of the counterweight can be realized, significantly improving the detection efficiency of the device. Through the guiding installation, it is convenient to interchangeably replace counterweight columns of various specifications, significantly expanding the detection range of the device. Combined with the lifting adjustment, the device can adapt to the detection of different models of cranes. The above-mentioned related technologies have the following defects: In order to ensure the quality of truck-mounted cranes, the sinking height when the crane hoists different weights will be tested. However, in the prior art, during the test, the gravity of the material received by the crane during the test is controlled by changing the quantity and size of the counterweight blocks. Therefore, a crane operation settlement test device is proposed. Summary of the Invention

[0004] In order to conveniently control the pressure received by the crane during the test, the present invention provides a crane operation settlement test device.

[0005] A crane operation settlement test device provided by the present invention adopts the following technical solutions: It includes an outer frame fixing ring. Telescopic support structures are installed on both the left and right sides of the outer frame fixing ring. Settlement monitoring structures are installed at both lower ends of the telescopic support structures. A material conveying ring is rotatably inserted into the front surface of the outer frame fixing ring. A plurality of material conveying grooves are formed on the inner ring surface of the material conveying ring. A counterweight cylinder is arranged on the inner ring side of the outer frame fixing ring. A storage box is arranged under the counterweight cylinder. Weight particles are added into the storage box. The lower end of the storage box is inserted into the inner ring surface of the outer frame fixing ring. Two vertical rods are fixed on the outer surface of the storage box. Two sleeve plates are fixed on the outer circumferential side of the counterweight cylinder. The sleeve plates are slidably sleeved on the outer surfaces of the adjacent vertical rods. A feeding cylinder is coaxially arranged above the counterweight cylinder. The upper end of the feeding cylinder is fixedly inserted into the inner ring surface of the outer frame fixing ring. The feeding cylinder and the storage box are respectively communicated with the adjacent material conveying grooves. Four pressure legs are fixed on the outer circumferential surface of the counterweight cylinder. An electronic weighing device is installed at the lower end of each pressure leg. The electronic weighing device is located below the outer frame fixing ring.

[0006] An outer gear ring is fixed on the front surface of the material conveying ring. A driving gear is meshed above the outer gear ring. A motor A is fixed on the upper surface of the outer frame fixing ring. The driving gear is fixedly sleeved on the output end of the motor A. A rotatable plugging structure is installed at the lower end of the counterweight cylinder.

[0007] Optionally, the telescopic support structure includes an upper support frame and a lower support frame. The upper support frame is slidably connected to the lower support frame. The upper end of the upper support frame is fixed to the outer frame fixing ring. A threaded shaft penetrates through the upper end of the lower support frame in a threaded manner. The threaded shaft is rotatably connected to the upper support frame. A motor B is fixed on the upper support frame. The output end of the motor B is fixed to the upper end of the threaded shaft.

[0008] Optionally, the settlement monitoring structure includes an elastic telescopic force-bearing rod and a telescopic detection recorder. The telescopic detection recorder is fixed to the lower telescopic end of the elastic telescopic force-bearing rod. The telescopic detection recorder detects the contraction change of the elastic telescopic force-bearing rod. A rotating plate is rotatably sleeved on the lower telescopic end of the elastic telescopic force-bearing rod. The other end of the rotating plate is rotatably connected to the adjacent lower support frame.

[0009] Optionally, the plugging structure includes a plugging plate. The lower end of the counterweight cylinder is in contact with the plugging plate. The plugging plate is rotatably connected to the counterweight cylinder. A motor C is installed on the outer surface of the lower end of the counterweight cylinder. The connecting shaft between the counterweight cylinder and the plugging plate is fixed to the output end of the motor C.

[0010] Optionally, a return pipe is arranged on one side of the end face of the outer frame fixing ring. The lower end of the return pipe is connected and installed in communication with the storage box. A ring plate is coaxially arranged above the counterweight cylinder. The ring plate is fixed to the upper ends of the two vertical rods. The upper end of the return pipe is fixedly penetrated through the bottom surface of the ring plate. An inclined return pipe is rotatably inserted into the upper end of the return pipe. The upper end face of the inclined return pipe is flush with the lower end face of the feeding cylinder.

[0011] Optionally, both the upper and lower ends of the inclined return pipe are vertical ends, the middle position of the inclined return pipe is inclined, the axial distance between the vertical ends at the upper and lower ends of the inclined return pipe is equal to the axial distance between the return pipe and the lower end axis of the blanking cylinder, and the outer diameter of the upper end of the inclined return pipe is equal to the outer diameter of the lower end of the blanking cylinder.

[0012] Optionally, a motor D is fixed on the outer ring side of the ring plate, a twisting gear is coaxially fixed on the lower vertical end of the inclined return pipe, a rotating gear is engaged on one side of the twisting gear, and the rotating gear is coaxially fixed with the output end of the motor D.

[0013] Optionally, support rings are arranged below the two sleeve plates, the two support rings are respectively fixed to the two vertical rods, and the upper surfaces of the two support rings are flush.

[0014] Optionally, the sizes of the lower end of the storage box and the upper end of the blanking cylinder are both adapted to the size of a material conveying groove, and the lower end of the storage box is conical.

[0015] Optionally, the elastic telescopic force-bearing rod is arranged vertically, an anti-slip end block is installed at the upper end of the elastic telescopic force-bearing rod, the anti-slip end block is in the shape of a frustum of a cone, and the diameter of the lower end of the anti-slip end block is smaller than the diameter of its upper end.

[0016] In summary, the present invention includes the following beneficial technical effects:

[0017] 1. By setting components such as a material conveying ring, a material conveying groove, a counterweight cylinder, and a blanking cylinder, the present invention adds counterweight particles into the storage box. The counterweight particles in the storage box enter the connected material conveying groove under gravity. The material conveying ring drives the material conveying groove to rotate during rotation. When the material conveying groove rotates to communicate with the upper end of the blanking cylinder, the counterweight particles in the material conveying groove fall into the counterweight cylinder through the blanking cylinder, gradually increasing the weight of the material particles in the counterweight cylinder, which is convenient for controlling the pressure received by the car plate.

[0018] 2. By setting components such as a return pipe and an inclined return pipe, when the weight in the counterweight cylinder no longer needs to be increased, the motor D controls the rotating gear to rotate and engage with the twisting gear, driving the inclined return pipe to rotate, so that the upper end of the inclined return pipe communicates with the lower end of the blanking cylinder, enabling the counterweight particles in the material conveying groove to move into the inclined return pipe through the blanking cylinder and then flow back to the storage box through the return pipe, so that the car plate receives a stable pressure of a certain weight.

[0019] 3. By setting a blocking plate, when the motor C controls the blocking plate to rotate to block the lower end of the counterweight cylinder, the counterweight particles can be stored in the counterweight cylinder. When it is necessary to control the reduction of the number of counterweight particles in the counterweight cylinder, the blocking plate is controlled to disengage from the lower end of the counterweight cylinder, enabling the counterweight particles inside the counterweight cylinder to be discharged.

[0020] 4. In the present invention, by providing a support ring, when no test detection is carried out, the electronic weighing device does not contact the vehicle board. The counterweight cylinder slides downward relative to the vertical rod under gravity, and the support ring supports by contacting the sleeve plate, supporting the lowest position of the counterweight cylinder to prevent the counterweight cylinder from colliding with the storage box without being supported. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the overall structure in an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the top view structure in an embodiment of the present invention;

[0023] Figure 3 is a schematic diagram of the connection structure between the upper support frame and the lower support frame in an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of the connection structure between the external gear ring and the material conveying ring in an embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the connection structure between the support ring and the vertical rod in an embodiment of the present invention;

[0026] Figure 6 is a schematic diagram of the position distribution of the counterweight cylinder and the storage box in an embodiment of the present invention;

[0027] Figure 7 is a front view schematic diagram of a part of the structure in an embodiment of the present invention;

[0028] Figure 8 is a schematic diagram of the connection structure between the twisting gear and the rotating gear in an embodiment of the present invention;

[0029] Figure 9 is a side view schematic diagram of a part of the structure in an embodiment of the present invention.

[0030] Reference Numerals: 1. Outer Frame Fixed Ring; 2. Material Conveying Groove; 3. Counterweight Cylinder; 4. Sleeve Plate; 5. Storage Box; 6. Telescopic Support Structure; 61. Upper Support Frame; 62. Lower Support Frame; 63. Threaded Shaft; 64. Motor B; 7. Settlement Monitoring Structure; 71. Elastic Telescopic Force-bearing Rod; 711. Anti-slip End Block; 72. Telescopic Detection Recorder; 73. Rotating Plate; 8. Material Conveying Ring; 9. Vertical Rod; 10. Feeding Tube; 11. Pressure Leg; 12. Electronic Weighing Device; 13. External Gear Ring; 14. Driving Gear; 15. Motor A; 16. Motor A; 161. Sealing Plate; 162. Motor C; 17. Return Pipe; 18. Ring Plate; 19. Inclined Return Pipe; 20. Motor D; 21. Twisting Gear; 22. Rotating Gear; 23. Support Ring. Detailed Embodiment

[0031] The following is combined with the attached Figures 1-9A further detailed description of the present invention will be given below.

[0032] An embodiment of the present invention discloses a crane operation settlement test device. As Figures 1-9 shown, it includes an outer frame fixing ring 1. Telescopic support structures 6 are installed on both the left and right sides of the outer frame fixing ring 1. The telescopic support structure 6 includes an upper support frame 61 and a lower support frame 62. The upper support frame 61 is slidably connected to the lower support frame 62. The upper end of the upper support frame 61 is fixed to the outer frame fixing ring 1. A threaded shaft 63 passes through the upper end of the lower support frame 62 in a threaded manner. The threaded shaft 63 is rotatably connected to the upper support frame 61. A motor B64 is fixed to the upper support frame 61. The output end of the motor B64 is fixed to the upper end of the threaded shaft 63. The motor B64 drives the threaded shaft 63 to rotate and is threadedly engaged with the lower support frame 62, so as to control the distance between the lower end of the lower support frame 62 and the upper end of the upper support frame 61, and the height of the outer frame fixing ring 1 can be controlled.

[0033] Settlement monitoring structures 7 are installed at both lower ends of the telescopic support structure 6. The settlement monitoring structure 7 includes an elastic telescopic force-bearing rod 71 and a telescopic detection recorder 72. The telescopic detection recorder 72 is fixed to the lower telescopic end of the elastic telescopic force-bearing rod 71. The telescopic detection recorder 72 detects the contraction change of the elastic telescopic force-bearing rod 71. The elastic telescopic force-bearing rod 71 is vertically arranged. An anti-slip end block 711 is installed at the upper end of the elastic telescopic force-bearing rod 71. The anti-slip end block 711 is in the shape of a frustum of a cone, and the diameter of the lower end of the anti-slip end block 711 is smaller than that of its upper end, so that the anti-slip end block 711 contacts the bottom surface of the vehicle plate. When the vehicle plate is subjected to pressure and sinks downward, the elastic telescopic force-bearing rod 71 can be driven to contract synchronously. The telescopic detection recorder 72 can detect and record the contraction change of the elastic telescopic force-bearing rod 71. A rotating plate 73 is rotatably sleeved on the lower telescopic end of the elastic telescopic force-bearing rod 71. The other end of the rotating plate 73 is rotatably connected to the adjacent lower support frame 62. When it is necessary to move the vehicle plate between the two lower support frames 62 on both sides, the rotation of the rotating plate 73 can be controlled to drive the elastic telescopic force-bearing rod 71 to rotate around the lower end of the lower support frame 62.

[0034] A material transfer ring 8 is rotatably inserted into the front surface of the outer frame fixing ring 1. A plurality of material transfer grooves 2 are formed on the inner ring surface of the material transfer ring 8. A counterweight cylinder 3 is arranged on the inner ring side of the outer frame fixing ring 1. A storage box 5 is arranged below the counterweight cylinder 3. Weight particles are added to the storage box 5. The lower end of the storage box 5 is inserted into the inner ring surface of the outer frame fixing ring 1.

[0035] Two vertical rods 9 are fixed to the outer surface of the storage box 5. Two sleeve plates 4 are fixed to the outer circumferential side surface of the counterweight cylinder 3. The sleeve plates 4 are slidably sleeved on the outer surface of the adjacent vertical rods 9. Support rings 23 are arranged below the sleeve plates 4. The two support rings 23 are respectively fixed to the two vertical rods 9, and the upper surfaces of the two support rings 23 are flush.

[0036] A blanking cylinder 10 is coaxially arranged above the counterweight cylinder 3. The upper end of the blanking cylinder 10 is fixedly inserted into the inner ring surface of the outer frame fixing ring 1. The blanking cylinder 10 and the storage box 5 are respectively communicated with adjacent material conveying grooves 2. The lower end of the storage box 5 and the upper end of the blanking cylinder 10 are both adapted to the size of one material conveying groove 2. The lower end of the storage box 5 is conical. The counterweight particles in the storage box 5 can fall into the connected material conveying groove 2 below. When the material conveying ring 8 rotates, it can drive the counterweight particles in the material conveying groove 2 to move upward. At the same time, the empty material conveying groove 2 rotates to the lower part of the storage box 5 and is filled with counterweight particles again. During the continuous rotation of the material conveying ring 8, the counterweight particles in the storage box 5 are transferred to be communicated with the blanking cylinder 10 and then fall into the counterweight cylinder 3 through the blanking cylinder 10.

[0037] Four pressure legs 11 are fixed on the outer circumferential surface of the counterweight cylinder 3. An electronic weighing device 12 is installed at the lower end of each pressure leg 11. The electronic weighing device 12 is located below the outer frame fixing ring 1. During detection, the electronic weighing device 12 is in contact with the vehicle board to support the counterweight cylinder 3. When adding counterweight particles into the counterweight cylinder 3, the pressure on the vehicle board is increased synchronously.

[0038] A return pipe 17 is arranged on one side of the end face of the outer frame fixing ring 1. The lower end of the return pipe 17 is communicated and installed with the storage box 5. A ring plate 18 is coaxially arranged above the counterweight cylinder 3. The ring plate 18 is fixed to the upper ends of two vertical rods 9. The upper end of the return pipe 17 is fixedly penetrated through the bottom surface of the ring plate 18. An inclined return pipe 19 is rotatably inserted into the upper end of the return pipe 17. The upper end face of the inclined return pipe 19 is flush with the lower end face of the blanking cylinder 10.

[0039] Both the upper and lower ends of the inclined return pipe 19 are vertical ends. The middle position of the inclined return pipe 19 is inclined, which is convenient for the counterweight particles entering the inclined return pipe 17 to move into the return pipe 17. The axial distance between the vertical ends at the upper and lower ends of the inclined return pipe 19 is equal to the axial distance between the axis of the return pipe 17 and the axis of the lower end of the blanking cylinder 10. The outer diameter of the upper end of the inclined return pipe 19 is equal to the outer diameter of the lower end of the blanking cylinder 10. A motor D 20 is fixed on the outer ring side of the ring plate 18. A twisting gear 21 is coaxially fixed to the lower vertical end of the inclined return pipe 19. A rotating gear 22 is engaged with one side of the twisting gear 21. The rotating gear 22 is coaxially fixed to the output end of the motor D 20. When the inclined return pipe 17 rotates to be communicated with the blanking cylinder 10, the counterweight particles falling in the blanking cylinder 10 can return to the storage box 5 through the inclined return pipe 17 and the return pipe 17, and the addition of counterweight particles into the counterweight cylinder 3 can be accurately stopped.

[0040] An external gear ring 13 is fixed on the front surface of the material conveying ring 8. A driving gear 14 is engaged above the external gear ring 13. A motor A 15 is fixed on the upper surface of the outer frame fixing ring 1. The driving gear 14 is fixedly sleeved on the output end of the motor A 15.

[0041] A rotatable plugging structure 16 is installed at the lower end of the counterweight cylinder 3. The plugging structure 16 includes a plugging plate 161. The lower end of the counterweight cylinder 3 contacts the plugging plate 161. The plugging plate 161 is rotatably connected to the counterweight cylinder 3. An electric motor C162 is installed on the outer surface of the lower end of the counterweight cylinder 3. The connecting shaft between the counterweight cylinder 3 and the plugging plate 161 is fixed to the output end of the electric motor C162. When the electric motor C162 controls the rotation of the plugging plate 161 to plug the lower end of the counterweight cylinder 3, the counterweight particles added into the counterweight cylinder 3 can accumulate continuously. When the plugging plate 161 and the counterweight cylinder 3 are misaligned, the counterweight particles in the counterweight cylinder 3 can fall into the storage box 5.

[0042] The working principle is as follows: During the test detection, the vehicle plate is located between the upper support frames 61 on both sides. The electric motor B64 drives the threaded shaft 63 to rotate and be threadedly engaged with the lower support frame 62, controlling the height between the upper and lower ends of the upper support frame 61 and the lower support frame 62, so that the anti-slip end blocks 711 contact the bottom surface of the vehicle plate. At the same time, the electronic weighing device 12 is controlled to contact above the vehicle plate to support the counterweight cylinder 3, so that the sleeve plate 4 disengages from the support ring 23. The counterweight particles are added into the storage box 5. The electric motor A15 drives the material conveying ring 8 to rotate by controlling the driving gear 14 to mesh with the external tooth ring 13. The counterweight particles in the storage box 5 enter the connected material conveying groove 2 under gravity. The material conveying ring 8 drives the material conveying groove 2 to rotate during rotation. When the material conveying groove 2 rotates to communicate with the upper end of the blanking cylinder 10, the counterweight particles in the material conveying groove 2 fall into the counterweight cylinder 3 through the blanking cylinder 10. When the plugging plate 161 is controlled to plug the lower end of the counterweight cylinder 3, the weight of the material particles in the counterweight cylinder 3 is gradually increased, facilitating the control of the pressure received by the vehicle plate. When the weight in the counterweight cylinder 3 no longer needs to be increased, the electric motor D20 controls the rotating gear to rotate and mesh with the twisting gear, driving the inclined return pipe to rotate, so that the upper end of the inclined return pipe communicates with the lower end of the blanking cylinder, enabling the counterweight particles in the material conveying groove to move into the inclined return pipe through the blanking cylinder, and then flowing back to the storage box through the return pipe, so that no more counterweight particles are added into the counterweight cylinder when the material conveying ring rotates again.

[0043] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A crane running settlement test device, comprising an outer frame fixing ring (1), characterized in that: The left and right sides of the external frame fixing ring (1) are both equipped with telescopic support structures (6). Both ends of the lower side of the telescopic support structure (6) are equipped with settlement monitoring structures (7). A feeding ring (8) is rotatably inserted into the front of the external frame fixing ring (1). A plurality of feeding grooves (2) are formed in the inner ring surface of the feeding ring (8). A counterweight cylinder (3) is arranged on the inner ring side of the external frame fixing ring (1). A storage box (5) is arranged below the counterweight cylinder (3). Weight particles are added into the storage box (5). The lower end of the storage box (5) is inserted into the inner ring surface of the external frame fixing ring (1). Two vertical rods (9) are fixed on the outer surface of the storage box (5). Two sleeve plates (4) are fixed on the outer circumferential side of the counterweight cylinder (3). The sleeve plates (4) are slidably sleeved on the outer surface of the adjacent vertical rod (9). A feeding cylinder (10) is coaxially arranged above the counterweight cylinder (3). The upper end of the feeding cylinder (10) is fixedly inserted into the inner ring surface of the external frame fixing ring (1). The feeding cylinder (10) and the storage box (5) are respectively communicated with the adjacent feeding grooves (2). Four pressure legs (11) are fixed on the outer circumferential surface of the counterweight cylinder (3). An electronic weighing device (12) is installed at the lower end of each pressure leg (11). The electronic weighing device (12) is located below the external frame fixing ring (1); An external gear ring (13) is fixed on the front of the feeding ring (8). A driving gear (14) is meshed above the external gear ring (13). A motor A (15) is fixed on the upper surface of the external frame fixing ring (1). The driving gear (14) is fixedly sleeved on the output end of the motor A (15). A rotatable plugging structure (16) is installed at the lower end of the counterweight cylinder (3).

2. The crane operation settlement test device according to claim 1, characterized in that: The telescopic support structure (6) includes an upper support frame (61) and a lower support frame (62). The upper support frame (61) is slidably connected with the lower support frame (62). The upper end of the upper support frame (61) is fixed to the external frame fixing ring (1). A threaded shaft (63) is threadedly penetrated through the upper end of the lower support frame (62). The threaded shaft (63) is rotatably connected with the upper support frame (61). A motor B (64) is fixed on the upper support frame (61). The output end of the motor B (64) is fixed to the upper end of the threaded shaft (63).

3. The crane operation settlement test device according to claim 2, wherein: The settlement monitoring structure (7) includes an elastic telescopic force-bearing rod (71) and a telescopic detection recorder (72). The telescopic detection recorder (72) is fixed to the lower telescopic end of the elastic telescopic force-bearing rod (71). The telescopic detection recorder (72) detects the contraction change of the elastic telescopic force-bearing rod (71). A rotating plate (73) is rotatably sleeved on the lower telescopic end of the elastic telescopic force-bearing rod (71). The other end of the rotating plate (73) is rotatably connected with the adjacent lower support frame (62).

4. A crane operation settlement test device according to claim 1, characterized in that: The plugging structure (16) includes a plugging plate (161). The lower end of the counterweight cylinder (3) is in contact with the plugging plate (161). The plugging plate (161) is rotatably connected with the counterweight cylinder (3). A motor C (162) is installed on the outer surface of the lower end of the counterweight cylinder (3). The connecting shaft between the counterweight cylinder (3) and the plugging plate (161) is fixed to the output end of the motor C (162).

5. The running settlement test device for a crane according to claim 1, characterized in that: On one side of the end face of the external frame fixing ring (1), a return pipe (17) is provided. The lower end of the return pipe (17) is connected and installed with the storage box (5). A ring plate (18) is coaxially arranged above the counterweight cylinder (3). The ring plate (18) is fixed to the upper ends of the two vertical rods (9). The upper end of the return pipe (17) fixedly penetrates the bottom surface of the ring plate (18). An inclined return pipe (19) is rotatably inserted into the upper end of the return pipe (17). The upper end face of the inclined return pipe (19) is flush with the lower end face of the blanking cylinder (10).

6. The running settlement test device for a crane according to claim 5, wherein: Both the upper and lower ends of the inclined return pipe (19) are vertical ends. The middle position of the inclined return pipe (19) is inclined. The axial distance between the vertical ends at the upper and lower ends of the inclined return pipe (19) is equal to the axial distance between the axis of the return pipe (17) and the axis of the lower end of the blanking cylinder (10). The outer diameter of the upper end of the inclined return pipe (19) is equal to the outer diameter of the lower end of the blanking cylinder (10).

7. The crane running settlement test device according to claim 6, characterized in that: A motor D (20) is fixed to the outer ring side of the ring plate (18). A twisting gear (21) is coaxially fixed to the lower vertical end of the inclined return pipe (19). A rotating gear (22) is engaged with one side of the twisting gear (21). The rotating gear (22) is coaxially fixed to the output end of the motor D (20).

8. The running settlement test device for a crane according to claim 1, characterized in that: Support rings (23) are arranged below the two sleeve plates (4). The two support rings (23) are respectively fixed to the two vertical rods (9). The upper surfaces of the two support rings (23) are flush.

9. The running settlement test device for a crane according to claim 1, characterized in that: The sizes of the lower end of the storage box (5) and the upper end of the blanking cylinder (10) are both adapted to the size of a feeding trough (2). The lower end of the storage box (5) is conical.

10. The operation settlement test device of a crane according to claim 3, characterized in that: The elastic telescopic force-bearing rod (71) is arranged vertically. An anti-slip end block (711) is installed at the upper end of the elastic telescopic force-bearing rod (71). The anti-slip end block (711) is in the shape of a frustum of a cone. The diameter of the lower end of the anti-slip end block (711) is smaller than the diameter of its upper end.

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