Tool for detecting opening degree of crane hook

Abstract

The utility model discloses a tool for detecting the opening degree of a lifting hook of a crane, which comprises a base station and a rack fixedly connected to the top of the base station, and a bottom positioning assembly for fixing one end of the lifting hook is mounted at the top of the base station. By arranging the bottom positioning assembly and the clamping assembly, the hook part and the hook handle part of the lifting hook are accurately fixed and positioned respectively, it is ensured that the lifting hook is kept in a stable state in the detection process, detection errors caused by shaking or shifting of the lifting hook are avoided, meanwhile, the driving assembly drives the top positioning assembly to ascend and descend, and the detection accuracy is improved. The fixed hook is subjected to a tensile test, the detection accuracy is further guaranteed, then the opening degree of the lifting hook is detected by adopting a laser displacement sensor detection probe, the advantages of non-contact, high precision, quick response and the like are achieved, and compared with a traditional mechanical or contact type detection method, the detection cost is reduced, and the detection efficiency is improved. And meanwhile, the detection reliability and the service life are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hook detection technical field, especially in a kind of tool for detecting crane hook opening degree. BACKGROUND

[0002] In the field of crane, as key load-bearing component, its safety performance is directly related to the safety and efficiency of the entire lifting operation. During the use of hook, due to long-term heavy load, frequent start-stop operation and the influence of external environmental factors, the opening degree of hook may gradually increase, which not only reduces the carrying capacity of hook, but also may cause serious safety accidents such as rupture of hook during use. Therefore, regular detection of the opening degree of crane hook, timely discovery and replacement of hook with excessive opening degree, is an important measure to ensure the safety of lifting operation.

[0003] At present, although there are some devices for detecting the opening degree of hook on the market, these devices often have problems such as complex operation, low detection accuracy and low automation degree. For example, in the "crane hook opening degree detection device and detection method" with the announcement number CN111413210B, although a technical solution for detecting the opening degree of hook is provided, it mainly focuses on directly measuring the opening degree of hook through a specific detection mechanism, and the fixing and positioning method of hook is not optimized, which may affect the stability and accuracy of detection. In addition, the device may need to adjust or reposition the hook several times during detection, which increases the complexity and time cost of detection. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of tool for detecting crane hook opening degree, by setting bottom positioning assembly and clamping assembly, the hook part and hook handle part of hook are accurately fixed and positioned respectively, ensure that hook maintains stable state during detection, avoid the detection error caused by hook shaking or displacement, simultaneously, drive assembly drives top positioning assembly to lift, carries out stretching test to fixed hook, further guarantee the accuracy of detection, then laser displacement sensor detection probe is used to detect the opening degree of hook, with the advantages of non-contact, high precision, fast response etc., compared with traditional mechanical or contact type detection method, reduce the detection cost, improve the reliability and service life of detection simultaneously.

[0005] In order to achieve the above purpose, the main technical scheme of the utility model comprises:

[0006] A kind of tool for detecting crane hook opening degree, comprising:

[0007] The utility model provides a base station and fixedly connect rack on the top of base station, the top of base station is installed with the bottom positioning assembly for the fixed bottom of one end of lifting hook, the top of bottom positioning assembly is provided with the top positioning assembly for the fixed top of other end of lifting hook, the rack on and the position of top positioning assembly corresponds installs the drive assembly for driving top positioning assembly lifts, the side of base station is installed with the detection table for the lifting hook of placing of waiting for detecting, the side of rack and the position of detection table corresponds installs the laser displacement sensor detection probe for lifting hook detection.

[0008] The utility model provides a detection crane hook opening degree's tool, wherein, bottom positioning assembly includes fixedly connected installation shell on the top of base station, the inside of installation shell is provided with stress plate, the top of stress plate is installed with the fixed ring for the fixed hook.

[0009] The utility model provides a detection crane hook opening degree's tool, wherein, the both sides of stress plate bottom are fixedly connected with connecting spring, and the other end of connecting spring is fixedly connected with the bottom of inside wall of installation shell, the bottom of stress plate is also installed with counterweight.

[0010] The utility model provides a detection crane hook opening degree's tool, wherein, top positioning assembly includes the drive seat of liftable, the bottom of drive seat is installed with the clamping assembly of cooperation with bottom positioning assembly.

[0011] The utility model provides a detection crane hook opening degree's tool, wherein, top positioning assembly also includes two limit sliding rods fixedly connected between rack and base station, and the limit sliding sleeve of sliding connection is arranged on the both sides of two limit sliding rods, and the side close to drive seat of limit sliding sleeve is fixedly connected with the side of drive seat.

[0012] The utility model provides a detection crane hook opening degree's tool, wherein, clamping assembly includes the fixed frame fixedly connected on the bottom of drive seat, the side of fixed frame is fixedly connected with positive and negative rotation motor, the output end of positive and negative rotation motor is fixedly connected with bidirectional screw rod, the reverse thread is seted up on bidirectional screw rod, the two symmetrical clamping plates of screw connection are seted up on bidirectional screw rod, and the fixed cylinder and fixed column of fixed connection are arranged on the opposite side of two clamping plates.

[0013] The utility model provides a detection crane hook opening degree's tool, wherein, the top of clamping plate is fixedly connected with limit sliding block, and the limit sliding groove that is matched with limit sliding block is seted up on the fixed frame and the position of limit sliding block corresponds.

[0014] The utility model provides a tool for detecting the opening degree of crane hook, wherein the driving assembly comprises a mounting frame fixedly connected to the top of the frame, a servo motor fixedly connected to the side of the mounting frame, a driving shaft fixedly connected to the output shaft of the servo motor, and two symmetrically arranged winding rollers fixedly connected to the driving shaft, and a steel wire is wound around the winding rollers, with the other end of the steel wire being fixedly connected to the top of the driving seat.

[0015] The utility model provides a tool for detecting the opening degree of crane hook, wherein the top of the stress plate is further provided with a pressure sensor.

[0016] The utility model at least has following beneficial effects:

[0017] In the utility model, a tool for detecting the opening degree of crane hook is realized, the hook part and the hook handle part of the hook are accurately fixed and positioned through the setting of the bottom positioning assembly and the clamping assembly, the hook is kept in a stable state during the detection process, the detection error caused by the shaking or displacement of the hook is avoided, the driving assembly drives the top positioning assembly to ascend and descend, the fixed hook is tested for stretching, the accuracy of the detection is further ensured, the opening degree of the hook is detected by the laser displacement sensor detection probe, and the tool has the advantages of non-contact, high precision and fast response, compared with the traditional mechanical or contact detection method, the detection cost is reduced, and the reliability and service life of the detection are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the application without imposing undue limitation thereon. In the drawings:

[0019] Figure 1 It is a structural schematic view of the tool for detecting the opening degree of crane hook of the utility model;

[0020] Figure 2 It is a sectional structure schematic view of the tool for detecting the opening degree of crane hook of the utility model;

[0021] Figure 3 It is a structural schematic view of the bottom positioning assembly in the tool for detecting the opening degree of crane hook of the utility model;

[0022] Figure 4 It is a sectional structure schematic view of the bottom positioning assembly in the tool for detecting the opening degree of crane hook of the utility model;

[0023] Figure 5 It is a structural schematic view of the top positioning assembly in the tool for detecting the opening degree of crane hook of the utility model;

[0024] Figure 6 Structure diagram of the clamping assembly in the tool for detecting the opening degree of the crane hook of the utility model;

[0025] Figure 7 Structure diagram of the driving assembly in the tool for detecting the opening degree of the crane hook of the utility model.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1, base station; 2, rack; 3, bottom positioning assembly; 4, top positioning assembly; 5, driving assembly; 6, detection table; 601, laser displacement sensor detection probe;

[0028] 301, mounting shell; 3011, stress plate; 3012, fixed ring;

[0029] 302, pressure sensor;

[0030] 303, connecting spring; 3031, counterweight;

[0031] 401, driving seat; 402, clamping assembly;

[0032] 4011, limiting sliding rod; 4012, limiting sliding sleeve;

[0033] 4021, fixed frame; 4022, forward and reverse motor; 4023, bidirectional screw; 4024, clamping plate; 4025, fixed cylinder; 4026, fixed column;

[0034] 40231, limiting sliding block; 40232, limiting sliding groove;

[0035] 501, mounting frame; 502, servo motor; 503, driving shaft; 504, winding roller; 505, steel wire rope. DETAILED DESCRIPTION

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the realization process of how to apply technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

[0037] Please refer to Figures 1 to 7The utility model discloses an embodiment provides a kind of tools for detecting crane hook opening degree, comprising: base 1 and the rack 2 of fixed connection in the top of base 1, the bottom of base 1 is equipped with the bottom positioning component 3 for the fixed end of hook, the top of bottom positioning component 3 is equipped with the top positioning component 4 for the fixed other end of hook, and the position of rack 2 and corresponding top positioning component 4 is equipped with the drive component 5 for driving top positioning component 4 to lift, the side of base 1 is equipped with the detection table 6 for the hook to be detected placement, and the side of rack 2 and corresponding detection table 6 position is equipped with the laser displacement sensor detection probe 601 for hook detection;

[0038] By adopting the above technical scheme, the hook part and the hook handle part are fixed and positioned accurately by the bottom positioning component 3 and the clamping assembly 402, so that the hook can maintain a stable state during detection, and detection errors caused by shaking or displacement of the hook are avoided. Meanwhile, the drive component 5 drives the top positioning component 4 to lift, and the fixed hook is stretched for testing, so that the accuracy of detection is further ensured. Then, the laser displacement sensor detection probe 601 is used to detect the opening degree of the hook, which has the advantages of non-contact, high precision, fast response and the like. Compared with the traditional mechanical or contact detection method, the detection cost is reduced, and the reliability and service life of detection are improved.

[0039] In order to directly and accurately fix the hook part, ensure that the hook part does not move or shake during detection, and provide a stable basis for subsequent stretching test and opening degree detection, the hook part is fixed firmly to avoid detection errors. In the embodiment, the bottom positioning component 3 includes a mounting shell 301 fixedly connected to the top of the base 1. The mounting shell 301 is internally provided with a stress plate 3011. The top of the stress plate 3011 is provided with a fixing ring 3012 for fixing the hook.

[0040] The two sides of the bottom of the stress plate 3011 are fixedly connected with connecting springs 303. The other ends of the connecting springs 303 are fixedly connected with the bottom of the inner wall of the mounting shell 301. The bottom of the stress plate 3011 is further provided with a counterweight 3031.

[0041] By adopting the above technical scheme, the connecting springs 303 have a buffering effect, and can absorb part of the impact force when the hook is subjected to a stretching force, thereby reducing damage to the bottom positioning component 3. The counterweight 3031 increases the stability of the bottom positioning component 3, so that the bottom positioning component 3 is not easy to shake when bearing the weight and stretching force of the hook, thereby improving the stability and adaptability of the entire device, and the device can be applicable to hook detection of different specifications and weights.

[0042] Please refer to Figures 1 to 7As shown in the figure, the top positioning assembly 4 comprises a liftable driving seat 401, the bottom of the driving seat 401 is provided with a clamping assembly 402 used in cooperation with the bottom positioning assembly 3, the top positioning assembly 4 further comprises two limiting slide rods 4011 fixedly connected between the rack 2 and the base 1, and a limiting slide sleeve 4012 is slidably connected to each of the two limiting slide rods 4011, and the side of the limiting slide sleeve 4012 close to the driving seat 401 is fixedly connected with the side of the driving seat 401.

[0043] In order to guide and limit the lifting of the driving seat 401 when the driving assembly 5 drives the driving seat 401 to lift, the limiting slide sleeve 4012 slides along the limiting slide rod 4011, the stability of the lifting of the driving seat 401 is ensured, unnecessary damage to the lifting hook caused by the shaking of the driving seat 401 is avoided, and the accuracy of the detection is improved. In the embodiment, the clamping assembly 402 comprises a fixed frame 4021 fixedly connected to the bottom of the driving seat 401, a reversible motor 4022 fixedly connected to the side of the fixed frame 4021, a bidirectional screw rod 4023 fixedly connected to the output end of the reversible motor 4022, a reverse thread formed in the bidirectional screw rod 4023, and two clamping plates 4024 symmetrically arranged and threadedly connected to the bidirectional screw rod 4023. The opposite side of each of the two clamping plates 4024 is fixedly connected with a fixed cylinder 4025 and a fixed column 4026 respectively.

[0044] In order to guide and limit the movement of the clamping plate 4024 when the bidirectional screw rod 4023 drives the clamping plate 4024 to move, the limiting slide block 40231 slides along the limiting slide groove 40232, the stability and linearity of the movement of the clamping plate 4024 is ensured, the deviation or jamming phenomenon of the clamping plate 4024 during the movement is avoided, and the stability and reliability of the clamping movement are improved. In the embodiment, the top of the clamping plate 4024 is fixedly connected with the limiting slide block 40231, and the limiting slide groove 40232 matched with the limiting slide block 40231 is formed in the fixed frame 4021 and corresponds to the position of the limiting slide block 40231.

[0045] Please refer to Figures 1 to 7 As shown in the figure, the driving assembly 5 comprises a mounting frame 501 fixedly connected to the top of the rack 2, a servo motor 502 fixedly connected to the side of the mounting frame 501, a driving shaft 503 fixedly connected to the output shaft of the servo motor 502, two winding rollers 504 symmetrically arranged and fixedly connected to the driving shaft 503, and a steel wire rope 505 wound around the winding rollers 504, and the other end of the steel wire rope 505 is fixedly connected to the top of the driving seat 401.

[0046] By adopting the technical scheme, the hook is fixed and positioned accurately at the hook part and the hook handle part through the bottom positioning assembly 3 and the top positioning assembly 4 respectively, and the driving assembly 5 drives the top positioning assembly 4 to stably ascend and descend, so that the fixed hook can be tested in tension, and the hook can always keep a stable state during the detection, thereby avoiding detection errors caused by shaking, displacement or uneven force of the hook, and greatly improving the detection accuracy.

[0047] In order to monitor the pressure applied by the hook to the fixing ring 3012 in real time, the operator can judge whether the hook is correctly installed in place according to the pressure data, and further ensure the accuracy and reliability of the fixing, in the embodiment, the top of the stress plate 3011 is also provided with a pressure sensor 302.

[0048] The working principle of the utility model is: through setting bottom positioning assembly 3 and clamping assembly 402, first, the hook part is hung on the fixing ring 3012, then the hook handle part passes through the fixed cylinder 4025, then the bidirectional screw rod 4023 is driven to rotate by the forward and reverse motor 4022, and under the thread action of the clamping plate 4024, the fixed cylinder 4025 and the fixed column 4026 are driven to approach each other, so that the hook part and the hook handle part can be fixed and positioned accurately, and the hook can keep a stable state during the detection, thereby avoiding detection errors caused by shaking or displacement of the hook, at the same time, the servo motor 502 drives the driving shaft 503 to rotate, and the steel wire rope 505 is wound by the winding roller 504, so that the driving seat 401 can be lifted, and then the fixed hook can be tested in tension, thereby further ensuring the detection accuracy, and then the stretched hook is placed on the detection table 6, and the opening degree of the hook is detected by the laser displacement sensor detection probe 601, which has the advantages of non-contact, high precision, fast response and the like, compared with the traditional mechanical or contact detection method, the detection cost is reduced, and the reliability and service life of the detection are improved.

[0049] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above teachings or related technologies or knowledge within the scope of the utility model concept described herein. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model shall be within the protection scope of the claims attached to the utility model.

Claims

1. A tool for detecting the opening degree of a crane hook, comprising a base (1) and a frame (2) fixedly connected to the top of the base (1), characterized in that, The base (1) is equipped with a bottom positioning component (3) for fixing one end of the hook. The bottom positioning component (3) is equipped with a top positioning component (4) for fixing the other end of the hook. The frame (2) is equipped with a drive component (5) for driving the top positioning component (4) to move up and down. The side of the base (1) is equipped with a detection platform (6) for placing the hook to be tested. The side of the frame (2) is equipped with a laser displacement sensor detection probe (601) for detecting the hook.

2. The tool for detecting the opening degree of a crane hook according to claim 1, characterized in that: The bottom positioning component (3) includes a mounting shell (301) fixedly connected to the top of the base (1). The mounting shell (301) has a force-bearing plate (3011) inside, and a fixing ring (3012) for fixing the hook is installed on the top of the force-bearing plate (3011).

3. The tool for detecting the opening degree of a crane hook according to claim 2, characterized in that: Both sides of the bottom of the force plate (3011) are fixedly connected with connecting springs (303), and the other end of the connecting springs (303) is fixedly connected to the bottom of the inner wall of the mounting shell (301). A counterweight (3031) is also installed at the bottom of the force plate (3011).

4. A tool for detecting the opening degree of a crane hook according to claim 3, characterized in that: The top positioning component (4) includes a liftable drive seat (401), and a clamping component (402) for use with the bottom positioning component (3) is installed on the bottom of the drive seat (401).

5. A tool for detecting the opening degree of a crane hook according to claim 4, characterized in that: The top positioning assembly (4) further includes two limiting slide rods (4011) fixedly connected between the frame (2) and the base (1), and a limiting sleeve (4012) slidably connected to both limiting slide rods (4011), and the side of the limiting sleeve (4012) near the drive seat (401) is fixedly connected to the side of the drive seat (401).

6. A tool for detecting the opening degree of a crane hook according to claim 5, characterized in that: The clamping assembly (402) includes a fixing frame (4021) fixedly connected to the bottom of the drive seat (401). A forward and reverse motor (4022) is fixedly connected to the side of the fixing frame (4021). A bidirectional screw (4023) is fixedly connected to the output end of the forward and reverse motor (4022). The bidirectional screw (4023) has a reverse thread. Two clamping plates (4024) are symmetrically arranged and threaded on the bidirectional screw (4023). A fixing cylinder (4025) and a fixing post (4026) are fixedly connected to opposite sides of the two clamping plates (4024).

7. A tool for detecting the opening degree of a crane hook according to claim 6, characterized in that: The top of the clamping plate (4024) is fixedly connected to a limiting slider (40231), and a limiting groove (40232) matching the limiting slider (40231) is provided on the fixing frame (4021) at the position corresponding to the limiting slider (40231).

8. A tool for detecting the opening degree of a crane hook according to claim 7, characterized in that: The drive assembly (5) includes a mounting bracket (501) fixedly connected to the top of the frame (2). A servo motor (502) is fixedly connected to the side of the mounting bracket (501). A drive shaft (503) is fixedly connected to the output shaft of the servo motor (502). Two symmetrically arranged take-up rollers (504) are fixedly connected to the drive shaft (503). A wire rope (505) is wound on the take-up roller (504), and the other end of the wire rope (505) is fixedly connected to the top of the drive seat (401).

9. A tool for detecting the opening degree of a crane hook according to claim 8, characterized in that: A pressure sensor (302) is also installed on the top of the force plate (3011).

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