Device for detecting bearing capacity of crane jib
By designing a crane boom bearing capacity detection device that includes a buffer assembly and a water storage tank, the problem of constant weight of the weight in the prior art resulting in safety hazards caused by the crane boom breakage and the lack of buffer assembly is solved, and the safety and effectiveness of the detection process are achieved.
Patent Information
- Application Number
- CN202421471854.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-26
AI Technical Summary
During the inspection process of the existing crane boom bearing force detection device, the constant weight of the heavy object may cause the crane boom to break, and the lack of buffer components will cause the heavy object to rise and fall too quickly, increasing safety hazards.
A detection device including a wireless suspending scale, a handheld monitor and a heavy object assembly is designed. The weight assembly consists of a base, a slide, a support plate, a buffer assembly, a counterweight block and a water storage tank. The slow weight increase and flexible lift of the weight assembly are achieved through the buffer assembly and a water storage tank.
It effectively reduces the risk of breaking and oscillation of the crane boom during the inspection process, reduces safety risks, and ensures the safety of the inspection process through the design of buffer components and water storage tank.
Smart Images
Figure CN222647480U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides a device for detecting the bearing capacity of a crane arm, belonging to the technical field of cranes. Background Art
[0002] Crane refers to a multi-action lifting machine that can lift and carry heavy objects vertically and horizontally within a certain range. It is also called an overhead crane, an overhead crane and a crane. The crane boom is an indispensable part of the crane. The produced crane boom usually needs to be tested for its bearing capacity using a testing device to determine whether the produced crane boom meets the standards.
[0003] The existing crane boom bearing capacity detection device mainly includes a wireless crane scale, a weight, a sling, and a handheld monitor. When the crane boom is subjected to a bearing capacity detection, the wireless crane scale is hung on the hook of the crane boom, and the two ends of the sling are respectively hung on the wireless crane scale and the weight. The handheld monitor can be used to monitor the gravity of the weight lifted by the wireless crane scale to determine whether the bearing capacity of the crane boom meets the standard.
[0004] The existing crane boom bearing capacity detection device can basically meet the use needs, but there are still certain defects: during use, the weight of the heavy object is often the maximum weight that the crane boom can bear. Since the weight of the heavy object is in a constant state, when the heavy object is lifted, once the crane boom fails to meet the standard, especially when the produced crane boom has a relatively low bearing capacity, it is inevitable that the crane boom will break and fall directly, which poses certain safety hazards; and when the heavy object is lifted and landed, due to the lack of corresponding buffer components, the speed of the heavy object is too fast when it is raised, resulting in the crane boom being subjected to excessive instantaneous tension and breaking, and the speed of the heavy object when it lands is too fast, resulting in excessive gravitational potential energy, and then the heavy object continues to vibrate, which poses certain safety hazards. Based on this, the utility model provides a crane boom bearing capacity detection device. Utility Model Content
[0005] The technical problem solved by the utility model is: when the weight of the heavy object is in a constant state, it is inevitable that the crane boom will break and fall directly, which poses certain safety hazards; when the heavy object is raised too fast, the crane boom is subjected to excessive instantaneous pulling force and breaks; when the heavy object falls to the ground too fast, the gravitational potential energy is too large, and the heavy object continues to vibrate, which poses certain safety hazards.
[0006] In order to solve the technical problem, the technical solution provided by the utility model is: a device for detecting the bearing capacity of a crane boom, comprising a wireless crane scale and a handheld monitor, a sling is hung under the wireless crane scale, a weight assembly is hung at the other end of the sling, the weight assembly comprises a base, a slide groove is provided on the top of the base, a support plate is slidably connected in the slide groove, a groove is provided at the bottom of the slide groove, a buffer assembly rotatably connected to the support plate is provided in the groove, a counterweight block is provided on the top of the support plate, and a water tank is provided on the top of the counterweight block.
[0007] Furthermore, the buffer assembly includes a slider symmetrically arranged and slidably connected to the groove, the top of the slider is rotatably connected to an inclined connecting rod rotatably connected to the bottom of the support plate, and a spring equipped with a damper is provided between the inner wall of the groove and the side wall of the slider.
[0008] Furthermore, both ends of the tilting connecting rod are provided with a rotating shaft which is rotatably connected to the top of the sliding block and the bottom of the supporting plate.
[0009] Furthermore, the top of the base is symmetrically provided with lifting ears matching with the lifting straps on four sides.
[0010] Furthermore, the inner walls on four sides of the slide groove are symmetrically provided with limiting rails matching the side walls of the support plate.
[0011] Furthermore, a water inlet pipe is provided on the upper wall of the water storage tank, a water outlet pipe is provided on the lower wall of the water storage tank, and a control valve is provided on the water outlet pipe.
[0012] Beneficial effects of the utility model:
[0013] 1. By opening the water supply source, water flows into the water tank through the water inlet pipe, and then the overall weight of the heavy component increases slowly. When an unqualified crane boom is detected, the crane boom will produce external manifestations such as bending, cracks, and sounds, so as to avoid directly lifting too heavy objects and causing the crane boom to break and fall, effectively reducing the safety hazards during detection;
[0014] 2. Through the buffer component, when the heavy object component is raised and landed, the support plate, counterweight block and water tank can be raised and lowered flexibly to prevent the counterweight component from being raised too quickly, causing the crane boom to be subjected to excessive instantaneous tension and break, and to prevent the counterweight component from landing too quickly, causing excessive gravitational potential energy, and causing the counterweight component to vibrate continuously, effectively reducing safety hazards during inspection. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a structural schematic diagram of a device for detecting the bearing capacity of a crane boom.
[0016] Figure 2A schematic diagram of a crane boom bearing capacity detection device according to the utility model Figure 1 .
[0017] Figure 3 A schematic diagram of a crane boom bearing capacity detection device according to the utility model Figure 2 .
[0018] 1. Wireless crane scale; 2. Handheld monitor; 3. Sling; 4. Weight assembly; 5. Base; 6. Slide; 7. Support plate; 8. Groove; 9. Buffer assembly; 10. Counterweight; 11. Water tank; 12. Sliding block; 13. Tilt connecting rod; 14. Spring; 15. Rotating shaft; 16. Lifting ear; 17. Limit rail; 18. Water inlet pipe; 19. Water outlet pipe; 20. Control valve. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings.
[0020] According to the attached Figure 2 As shown: The utility model provides a device for detecting the bearing capacity of a crane boom: it includes a wireless crane scale 1 and a handheld monitor 2. When the bearing capacity of the crane boom is detected, the wireless crane scale 1 is hung on the hook of the crane boom, and the handheld monitor 2 can monitor the gravity of the heavy object lifted by the wireless crane scale 1.
[0021] According to the attached Figure 1 , 2As shown in 3: a sling 3 is hung below the wireless crane scale 1, and a weight assembly 4 is hung at the other end of the sling 3. The weight assembly 4 includes a base 5, and four sides of the top of the base 5 are symmetrically provided with lifting ears 16 that match the sling 3. A slide 6 is provided on the top of the base 5, and a support plate 7 is slidably connected in the slide 6. The inner walls of the four sides of the slide 6 are symmetrically provided with limiting rails 17 that match the side walls of the support plate 7, which play a role in limiting the support plate 7. A counterweight 10 is provided on the top of the support plate 7, and a water tank 11 is provided on the top of the counterweight 10. A water inlet pipe 18 is provided on the upper wall of the water tank 11, and a water outlet pipe 19 is provided on the lower wall of the water tank 11. A control valve 20 is provided on the water outlet pipe 19. By hanging one end of the sling 3 on the lifting ear 16, the other end of the sling 3 Hanging on the wireless crane scale 1, the weight component 4 has a considerable weight basis through the counterweight block 10, and the water inlet pipe 18 is connected to the external water supply source to fill water into the water tank 11. When the weight component 4 is lifted up, the water supply source is opened to allow water to flow into the water tank 11 through the water inlet pipe 18, thereby slowly increasing the overall weight of the weight component 4. The handheld monitor 2 monitors the gravity of the weight lifted by the wireless crane scale 1, and then can detect the bearing capacity of the crane boom. When an unqualified crane boom is detected, the crane boom will have external manifestations such as bending, cracks, and sounds, so as to avoid directly lifting too heavy weights and causing the crane boom to break, effectively reducing safety hazards during detection.
[0022] According to the attached Figure 3 As shown: a groove 8 is provided at the bottom of the slide 6, and a buffer assembly 9 is provided in the groove 8 and is rotatably connected to the support plate 7. The buffer assembly 9 includes a slider 12 that is symmetrically arranged and slidably connected to the groove 8. The top of the slider 12 is rotatably connected to a tilting link 13 that is rotatably connected to the bottom of the support plate 7. A spring 14 equipped with a damper is provided between the inner side wall of the groove 8 and the side wall of the slider 12. A rotating shaft 15 that is rotatably connected to the top of the slider 12 and the bottom of the support plate 7 is provided at both ends of the tilting link 13. Through the buffer assembly 9, when the weight assembly 4 is lifted and landed, the support plate 7 is lifted up and down to make the tilting link 13 slide, thereby making the slider 12 move closer to and away from each other, thereby making the spring 14 equipped with a damper contract and stretch, thereby making the support plate 7, the counterweight block 10, and the water tank 11 flexibly lift and lower, so as to prevent the counterweight assembly from being lifted too fast, resulting in the crane boom being subjected to excessive instantaneous tension and breaking, thereby affecting the detection result, so as to prevent the counterweight assembly from landing too fast, resulting in excessive gravitational potential energy, thereby causing the counterweight assembly to continuously vibrate, thereby effectively reducing the safety hazards during detection.
[0023] Principle of the utility model
[0024] When in use, the wireless crane scale 1 is hung on the hook of the crane boom, and one end of the sling 3 is hung on the lifting ear 16, and the other end of the sling 3 is hung on the wireless crane scale 1. When the weight component 4 is lifted, the water supply source is turned on to allow water to flow into the water storage tank 11 through the water inlet pipe 18, thereby slowly increasing the overall weight of the weight component 4. The handheld monitor 2 monitors the gravity of the weight lifted by the wireless crane scale 1, and then can detect the bearing capacity of the crane boom. When an unqualified crane boom is detected, the crane boom will bend or crack. The external manifestations such as seams and sounds can be avoided to prevent the crane boom from breaking and falling due to directly lifting too heavy objects, thereby effectively reducing the safety hazards during detection. Through the buffer component 9, when the weight component 4 is lifted and landed, the support plate 7, the counterweight block 10, and the water tank 11 can be flexibly lifted and lowered to prevent the crane boom from breaking due to the instantaneous excessive pulling force when the counterweight component is lifted too fast and the counterweight component from falling too fast and causing excessive gravitational potential energy, thereby causing the counterweight component to continue to vibrate, thereby effectively reducing the safety hazards during detection.
[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A device for detecting the bearing capacity of a crane boom, comprising a wireless crane scale (1) and a handheld monitor (2), characterized in that: A sling (3) is suspended below the wireless crane scale (1), and a weight assembly (4) is suspended at the other end of the sling (3). The weight assembly (4) includes a base (5), a slide groove (6) is provided at the top of the base (5), a support plate (7) is slidably connected in the slide groove (6), a groove (8) is provided at the bottom of the slide groove (6), a buffer assembly (9) rotatably connected to the support plate (7) is provided in the groove (8), a counterweight block (10) is provided at the top of the support plate (7), and a water storage tank (11) is provided at the top of the counterweight block (10).
2. A crane boom bearing capacity detection device according to claim 1, characterized in that: The buffer assembly (9) comprises a slider (12) which is symmetrically arranged and slidably connected to the groove (8); the top of the slider (12) is rotatably connected to an inclined connecting rod (13) which is rotatably connected to the bottom of the support plate (7); and a spring (14) equipped with a damper is provided between the inner side wall of the groove (8) and the side wall of the slider (12).
3. A crane boom bearing capacity detection device according to claim 2, characterized in that: Both ends of the tilting connecting rod (13) are provided with rotating shafts (15) which are rotatably connected to the top of the sliding block (12) and the bottom of the supporting plate (7).
4. The device for detecting the bearing capacity of a crane boom according to claim 1, characterized in that: The top of the base (5) is symmetrically provided with lifting ears (16) matching with the lifting belt (3) on four sides.
5. The device for detecting the bearing capacity of a crane boom according to claim 1, characterized in that: The inner walls of the four sides of the slide groove (6) are symmetrically provided with limiting rails (17) that match the side walls of the support plate (7).
6. The device for detecting the bearing capacity of a crane boom according to claim 1, characterized in that: A water inlet pipe (18) is provided on the upper wall of the water storage tank (11), a water outlet pipe (19) is provided on the lower wall of the water storage tank (11), and a control valve (20) is provided on the water outlet pipe (19).