Large-tonnage hoisting belt detection test tool
By designing a testing fixture for lifting slings adapted to a 100-ton tensile testing machine, and using rolling bearings and pin-type fasteners, the problem of severe wear on lifting sling testing equipment was solved, achieving accurate and rapid testing results.
Patent Information
- Application Number
- CN202422933460.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing lifting sling testing equipment is not compatible with a 100-ton tensile testing machine, resulting in severe wear on the lifting slings during testing and making it difficult to obtain accurate and highly repeatable test results.
A testing fixture for heavy lifting slings was designed, including movable and fixed connectors. It uses rolling bearings to reduce friction and uses pin-type fasteners for quick assembly and disassembly. It is compatible with a 100-ton tensile testing machine.
It achieves compatibility with a 100-ton tensile testing machine, reduces wear on lifting slings, ensures the accuracy and repeatability of test results, and is suitable for rapid testing of large batches of lifting slings.
Smart Images
Figure CN223664408U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to safety detection frock technical field, especially, relate to a big tonnage hoisting belt detection test frock. BACKGROUND
[0002] The conventional hoisting belt (synthetic fiber hoisting belt) is generally made of high-strength polyester filament, has multiple advantages such as high strength, wear resistance, oxidation resistance and ultraviolet resistance, is soft in texture, is not conductive and is not corrosive (does not harm the human body), and is widely used in various fields. The hoisting belt is light and easy to carry, is convenient to maintain, has good chemical resistance, is light in weight, is high in strength, is not easy to damage the surface of a hoisted object, and has other excellent characteristics, and it is more and more favored by users and gradually replaces steel wire rope in many aspects. The main disadvantage of the hoisting belt is mainly different from the steel wire rope, which mainly manifests that when a hoisted object has sharp edges, the sharp edges can cause destructive cuts to the hoisting belt, so that the strength of the hoisting belt is damaged, and therefore, the hoisting belt needs to be regularly detected to avoid safety accidents.
[0003] The detection cycle of the hoisting belt should be determined according to the use frequency and working environment of the hoisting belt, and it is generally recommended to perform a comprehensive inspection once every quarter. The inspection results should be recorded in detail, including the inspection date, the inspection personnel, the inspection results and other information. For the problems found in the inspection, timely repair or replacement should be performed to ensure the safe use of the hoisting belt.
[0004] The hoisting belt detection standard mainly includes the following aspects: appearance inspection: whether the surface of the hoisting belt has cracks, wear, corrosion and other damages, whether the joints are firm, whether there are loose, open line and other phenomena, and whether the labels and marks are clear and identifiable. Structure inspection: whether the metal parts of the hoisting belt have deformation, cracks, rust and other defects, whether the connecting parts are firm, and whether the adjusting device is flexible. Function inspection: whether the load-bearing capacity of the hoisting belt meets the requirements, whether there is overloading use, whether the suspension and support functions are normal, and whether the emergency release device is intact. Safety protection inspection: whether the safety protection devices of the hoisting belt are intact, such as limiters, buffers and the like, whether the safety marks are clear and visible, and whether the instruction manual and operation guide are complete.
[0005] The function inspection is the most important item in the detection project, and a corresponding frock needs to be designed to match the tension machine, the frock should avoid the wear of the hoisting belt in the detection process, and at the same time, accurate and highly repeatable inspection conclusions can be obtained. UTILITY MODEL CONTENTS
[0006] The utility model discloses a purpose is to provide a large tonnage hoisting belt detection test tool, overcome the prior art's insufficient, adapt 100 tons tension machine, to large tonnage double knot hoisting belt carries out function detection, guarantees hoisting belt stress left and right symmetry, is equipped with the rolling bearing in hoisting belt tensile zone, alleviates the friction, the bolt type hasp fixing piece convenient dismounting, adapts the quick detection of large quantities hoisting belt.
[0007] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme:
[0008] Large tonnage hoisting belt detection test tool, including movable connecting piece and fixed connecting piece, the fixed connecting piece is respectively through the positioning column and quick -mount bolt and tension machine track fixed connection left and right, and movable connecting piece is connected with tension machine tool connection head, movable connecting piece includes side plate no.
[0009] Further, the quick-change pin shaft includes a pin body, a pull ring and a pin head pad, the top of the pin body is provided with the pin head pad, the top of the pin head pad is provided with the pull ring, and the quick-change pin shaft is of an integral structure.
[0010] Further, the number of the fixed columns is even, and the fixed columns are symmetrically arranged along the upper connecting plate and the lower connecting plate.
[0011] Further, the model of the ball bearing is 6212.
[0012] Further, the hanging belt sleeve and the quick-change pin shaft are movably connected.
[0013] Further, at least one of the front shaft and the rear shaft is a bolt, and a lock nut is arranged at the end of the bolt.
[0014] Further, the distance between the two hanging pins is 100-200mm.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] 1) The tool is suitable for 100 tons of tension machine, which can detect the function of large tonnage double buckle lifting belt, meet the technical specification requirements of national detection standard (DL / T 1741-2017);
[0017] 2) The tool connecting piece structure is firm, not easy to deform under tension, can ensure that the lifting belt is symmetrically stressed, so as to obtain accurate and high repeatability inspection conclusion;
[0018] 3) The tool connecting piece is provided with rolling bearing in the stretching area of the lifting belt, which can effectively reduce the friction on the lifting belt, the pin type buckle fixing piece is convenient to disassemble and assemble, so that the tool can adapt to the rapid detection of large quantity of lifting belts. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic diagram of the embodiment of the utility model;
[0020] Figure 2 is a top view of Figure 1 ;
[0021] Figure 3 is a schematic diagram of the three-dimensional arrangement structure in the embodiment of the utility model;
[0022] Figure 4 is a schematic diagram of the quick change pin shaft structure in the embodiment of the utility model.
[0023] In the drawing: 1-activity connecting piece, 2-fixed connecting piece, 3-positioning column, 4-quick mounting bolt, 5-tension machine track, 6-side plate one, 7-side plate two, 8-front axle, 9-rear axle, 10-pull plate, 11-rolling ball bearing, 12-shaft sleeve, 13-upper connecting plate, 14-lower connecting plate, 15-hanging belt pin, 16-quick change pin shaft, 17-hanging belt sleeve pipe, 18-pin body, 19-lifting ring, 20-pin head pad, 21-fixed column, 22-lock nut, 23-lifting belt to be measured. DETAILED DESCRIPTION
[0024] The technical scheme of the utility model will be described clearly and completely in combination with specific embodiments, obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments.
[0025] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the specific embodiments needed in the description of specific embodiment or prior art will be simply introduced, obviously, the specific embodiments in the following description are some embodiments of the utility model, and other specific embodiments can be obtained by those skilled in the art without creative labor on the premise.
[0026] The components of the embodiments of the present application generally described and shown herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the specific embodiments is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.
[0027] See Figures 1-3 It is the structural schematic diagram of the large tonnage hoisting belt detection test tool embodiment of the present application, including movable connecting piece 1 and fixed connecting piece 2, and the fixed connecting piece 2 is fixedly connected with the tension machine track 5 through positioning columns 3 and quick mounting bolts 4 on the left and right respectively, and the movable connecting piece 1 is connected with the tension machine tool connecting head; the movable connecting piece 1 includes side plate one 6, side plate two 7, front shaft 8, rear shaft 9 and pull plate 10, the side plate one 6 and the side plate two 7 are connected into a rectangular frame through the front shaft 8 and the rear shaft 9, a plurality of ball bearings 11 are arranged on the front shaft 8 in a dense manner, the model of the ball bearing 11 is 6212, 6212 is a deep groove ball bearing, the inner diameter d is 60mm, the outer diameter is 110mm, the thickness is 22mm, after the 7 6212 are stacked, the inner width of the movable connecting piece 1 is 154mm, and the hoisting belt detection below the width of 150mm is suitable. The front shaft 8 and the rear shaft 9 are both bolts, and the end portions are provided with lock nuts 22 in a matched mode, so that installation is facilitated.
[0028] The pull plate 10 is arranged on the rear shaft 9 and is centrally arranged on the rear shaft 9, and the shaft sleeves 12 are arranged between the pull plate 10 and the side plate one 6 and the side plate two 7; the fixed connecting piece 2 includes upper connecting plates 13, lower connecting plates 14, fixed columns 21 and belt hanging pins 15, the upper connecting plates 13 and the lower connecting plates 14 are arranged in parallel from top to bottom, the upper connecting plates 13 and the lower connecting plates 14 are connected through a plurality of fixed columns 21 to form a hollow frame, and two belt hanging pins 15 are symmetrically arranged between the upper connecting plates 13 and the lower connecting plates 14, the distance between the two belt hanging pins 15 is 100-200mm, which is matched with the outer diameter of the ball bearing 11, so that the force in the tensile test acts on the whole hoisting belt, and the hoisting belt tensioning part can rotate, thereby avoiding abrasion.
[0029] The belt hanging pin 15 includes a quick-change pin shaft 16 and a belt sleeve 17, the belt sleeve 17 is located between the upper connecting plate 13 and the lower connecting plate 14, the outer diameter of the quick-change pin shaft 16 is matched with the inner diameter of the belt sleeve 17, and the belt sleeve 17 and the quick-change pin shaft 16 are movably connected.
[0030] The number of the fixed columns 21 is even (4), and the fixed columns 21 are symmetrically arranged along the upper connecting plate 13 and the lower connecting plate 14, so that the symmetrical structure can make the tool deform uniformly under tension, thereby avoiding the influence of the deformation problem of the asymmetric structure under stress on the detection result.
[0031] The large tonnage hoisting belt suitable for the present application has a specification of 1-16 tons.
[0032] See Figure 4 The quick-change pin shaft 16 comprises a pin body 18, a pull ring 19 and a pin head pad 20, the top of the pin body 18 is provided with the pin head pad 20, the top of the pin head pad 20 is provided with the pull ring 19, the quick-change pin shaft 16 is a one-piece structure and has sufficient strength.
[0033] In the working process of the utility model, the two ends of the fixed connecting piece 2 are fixedly connected with the track 5 of the tensile testing machine by the positioning column 3 and the quick mounting bolt 4. The movable connecting piece 1 is connected with the tool connecting head of the tensile testing machine. The tool connecting head of the tensile testing machine is moved until the distance between the movable connecting piece 1 and the fixed connecting piece 2 is less than half the length of the hoisting belt to be measured. The hoisting belt 23 to be measured is wound around the ball bearing 11 of the front shaft, the two ring buckles of the hoisting belt 23 are sleeved on the belt hanging sleeve 17 and are fixed into the fixed connecting piece 2 by the belt hanging pin 15. The tensile testing machine is started, the tool connecting head of the tensile testing machine is moved backward until the hoisting belt is tensioned, the tensile value of the tensile testing machine reaches the rated value 2.0 or 1.25 times the ultimate working load, after the tension is maintained for 10 minutes, the test is finished, the hoisting belt is not obviously damaged, and the hoisting belt is qualified.
[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A large-tonnage hoisting belt testing and inspection fixture, characterized in that, The system includes a movable connector and a fixed connector. The fixed connector is fixedly connected to the tensile testing machine rail on both sides via positioning posts and quick-release bolts. The movable connector is connected to the tensile testing machine tool connector. The movable connector includes a first side plate, a second side plate, a front axle, a rear axle, and a pull plate. The first and second side plates are connected to form a rectangular frame via the front and rear axles. The front axle is equipped with multiple closely spaced ball bearings, and the pull plate is located on the rear axle, centered on the rear axle. The pull plate is positioned between itself and the first and second side plates respectively. The limiting bushing; the fixed connecting component includes an upper connecting plate, a lower connecting plate, a fixing column, and a hanging pin. The upper and lower connecting plates are arranged parallel to each other, and are connected by multiple fixing columns to form a hollow frame. Two hanging pins are also symmetrically arranged between the upper and lower connecting plates. The hanging pin includes a quick-change pin shaft and a hanging sleeve. The hanging sleeve is located between the upper and lower connecting plates, and the outer diameter of the quick-change pin shaft matches the inner diameter of the hanging sleeve. The specifications of the large-tonnage lifting sling are 1-16 tons.
2. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, The quick-change pin includes a pin body, a pull ring, and a pin head pad. The pin body has a pin head pad on top, and the pin head pad has a pull ring on top. The quick-change pin is an integral structure.
3. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, The number of fixed columns is even, and they are arranged symmetrically along the upper and lower connecting plates.
4. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, The ball bearing is model 6212.
5. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, The hanging sleeve and the quick-change pin are connected in a movable manner.
6. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, At least one of the front axle and the rear axle is a bolt, and its end is fitted with a lock nut.
7. The testing and inspection fixture for large-tonnage lifting belts according to claim 1, characterized in that, The distance between the two hanging pins is 100-200mm.