External sensor for flaw detection of steel wire rope of crane

Abstract

The utility model provides an external sensor for flaw detection of a crane wire rope, which relates to the technical field of wire ropes and comprises an integral structure and supporting structures, and the supporting structures are positioned at the front and rear positions of two sides of the bottom of the integral structure; the overall structure comprises a box body, circular rings are fixedly connected to the centers of the outer surfaces of the two sides of the box body, a plurality of first electric push rods which are evenly distributed are fixedly installed on the inner surfaces of the circular rings, the extending ends of the first electric push rods are fixedly connected with first rolling wheels, and the outer surfaces of the first electric push rods are sleeved with compression springs; during use, when a steel wire rope penetrates through the circular ring, the first electric push rod can drive the first rolling wheel to move, so that the first rolling wheel can be in contact with the outer surface of the steel wire rope, force can be applied to the steel wire rope when the first rolling wheel is in contact with the outer surface of the steel wire rope, and the steel wire rope is prevented from being damaged. Therefore, subsequent stable detection can be carried out, and falling during subsequent detection is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of steel wire ropes, in particular to an external sensor for detecting flaws in the steel wire ropes of a crane. Background Art

[0002] A steel wire rope is a helical steel wire bundle formed by twisting steel wires that meet the requirements of mechanical properties and geometric dimensions according to certain rules. A steel wire rope consists of steel wires, a rope core, and lubricating grease. First, multiple layers of steel wires are twisted into strands, and then, with the rope core as the center, a certain number of strands are twisted into a helical rope. In material handling machinery, it is used for lifting, towing, tensioning, and load bearing.

[0003] The integrity of the steel wire rope directly determines the safety of equipment use. Therefore, it is very necessary to detect damage to the steel wire rope. However, when the existing technology is in use, most of the detections of steel wire ropes are inconvenient to fix and not firmly fixed, making it easy to fall off during detection. Therefore, we propose an external sensor for detecting flaws in the steel wire ropes of a crane to solve the problems mentioned above. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that most of the detections of steel wire ropes in the existing technology are inconvenient to fix and not firmly fixed, making it easy to fall off during detection, and to propose an external sensor for detecting flaws in the steel wire ropes of a crane.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: An external sensor for detecting flaws in the steel wire ropes of a crane includes an overall structure and a support structure. The support structure is located at the front and rear positions on both sides of the bottom of the overall structure.

[0006] The overall structure includes a box body. At the center of the outer surfaces on both sides of the box body, a ring is fixedly connected. A number of uniformly distributed first electric push rods are fixedly installed on the inner surface of the ring. The extending end of the first electric push rod is fixedly connected with a first roller. A compression spring is sleeved on the outer surface of the first electric push rod. On both sides of the inner bottom of the box body, at the front and rear positions, fixing plates are fixedly connected. On the relative side of the two fixing plates, near the top position, a second roller is rotatably connected. On the front outer surface of the second roller, a pulley is fixedly connected. The center of the inner surface of the pulley is slidably connected with a belt body.

[0007] Preferably, one end of the compression spring is fixedly connected with the outer surface of the ring, and the other end of the compression spring is fixedly connected with the outer surface of the first roller.

[0008] Preferably, on one side of the front outer surface of the fixing plate, near the top position, a servo motor is fixedly installed. The output end of the servo motor is fixedly connected with a rotating shaft.

[0009] Preferably, one end of the rotating shaft penetrates through the surface of the fixing plate and is fixedly connected to the output end of the servo motor, and the other end of the rotating shaft is fixedly connected to the front outer surface of one of the pulleys.

[0010] Preferably, second electric push rods are fixedly installed at the front and rear positions on both sides of the inner top of the box body. The extending end of the second electric push rod is fixedly connected to a bracket. A third roller is rotatably connected to the inner surface of the bracket. A laser rangefinder is fixedly installed at the center of the inner bottom of the box body.

[0011] Preferably, heat dissipation pipes are arranged through both sides of the top of the box body. A PLC controller is fixedly installed on one side of the front outer surface of the box body. A display screen is fixedly installed at the center of the front outer surface of the box body.

[0012] Preferably, the support structure includes support legs. An anti-slip pad is fixedly connected to the center of the bottom of the support legs. The top surface of the support legs is fixedly connected to the bottom surface of the box body.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0014] 1. In the present utility model, during use, when the steel wire rope passes through the ring, the first electric push rod can drive the first roller to move, so that the first roller can contact the outer surface of the steel wire rope. When contacting, a force can be applied to it, so that subsequent detection can be carried out stably, preventing it from falling during subsequent detection.

[0015] 2. In the present utility model, through the mutual cooperation of the second roller, the pulley, the belt body, the servo motor and the rotating shaft, the steel wire rope can be conveyed, thereby improving the detection efficiency. And through the mutual cooperation of the second electric push rod, the bracket and the third roller, the auxiliary fixing effect can be achieved, so that the steel wire rope can be conveyed stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a three-dimensional structural schematic diagram of an external sensor for flaw detection of a crane steel wire rope proposed by the present utility model;

[0017] Figure 2 FIG. is an external sensor for flaw detection of a crane steel wire rope proposed by the present utility model Figure 1 of a sectional structural schematic diagram;

[0018] Figure 3 FIG. is a three-dimensional structural schematic diagram of a pulley, a belt body and a servo motor;

[0019] Figure 4 FIG. is a three-dimensional structural schematic diagram of a ring, a first roller and a first electric push rod.

[0020] Legend: 1. Overall structure; 2. Support structure; 101. Box body; 102. PLC controller; 103. Display screen; 104. Heat dissipation pipe; 105. Laser rangefinder; 106. Bracket; 107. Third roller; 108. Second electric push rod; 109. Second roller; 110. Fixed plate; 111. Belt body; 112. Servo motor; 113. Rotating shaft; 114. Pulley; 115. Ring; 116. Compression spring; 117. First electric push rod; 118. First roller; 201. Support leg; 202. Anti-slip pad. Detailed implementation

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0023] Embodiment 1, as Figures 1 - 4 shown, a crane wire rope flaw detection external sensor includes an overall structure 1 and a support structure 2, and the support structure 2 is located at the front and rear positions on both sides of the bottom of the overall structure 1; the overall structure 1 includes a box body 101, and rings 115 are fixedly connected to the centers of the outer surfaces on both sides of the box body 101. A number of uniformly distributed first electric push rods 117 are fixedly installed on the inner surface of the ring 115. The extending ends of the first electric push rods 117 are fixedly connected to first rollers 118. Compression springs 116 are sleeved on the outer surfaces of the first electric push rods 117. Fixed plates 110 are fixedly connected to the front and rear positions on both sides of the inner bottom of the box body 101. Second rollers 109 are rotatably connected to the relative sides of the two fixed plates 110 near the top. A pulley 114 is fixedly connected to the outer surface of the front side of the second roller 109. A belt body 111 is slidably connected to the center of the inner surface of the pulley 114.

[0024] The effect achieved by the entire Embodiment 1 is, as Figure 1 and Figure 4As shown, during actual use, the circular ring 115 on one side is the inlet for the steel wire rope, and the circular ring 115 on the other side is the outlet for the steel wire rope. Then, when it passes through the circular ring 115 on one side, through the mutual cooperation of the first electric push rod 117, the compression spring 116, and the first roller 118, it can be fixed, enabling the steel wire rope to be stably detected. Moreover, the main source of force for the first roller 118 is the force of the first electric push rod 117, and the elastic force of the compression spring 116 plays an auxiliary role to improve the fixing effect.

[0025] Embodiment 2, as Figures 1 - 4 As shown, one end of the compression spring 116 is fixedly connected to the outer surface of the circular ring 115, and the other end of the compression spring 116 is fixedly connected to the outer surface of the first roller 118. One side of the front outer surface of the fixed plate 110 near the top is fixedly installed with a servo motor 112. The output end of the servo motor 112 is fixedly connected to a rotating shaft 113. One end of the rotating shaft 113 penetrates the surface of the fixed plate 110 and is fixedly connected to the output end of the servo motor 112. The other end of the rotating shaft 113 is fixedly connected to the front outer surface of one of the belt pulleys 114. On both sides of the inner top of the box body 101, second electric push rods 108 are fixedly installed at the front and rear positions. The extending end of the second electric push rod 108 is fixedly connected to a bracket 106. The inner surface of the bracket 106 is rotatably connected to a third roller 107. A laser rangefinder 105 is fixedly installed at the center of the inner bottom of the box body 101. Heat dissipation pipes 104 are arranged through the two sides of the top of the box body 101. One side of the front outer surface of the box body 101 is fixedly installed with a PLC controller 102. A display screen 103 is fixedly installed at the center of the front outer surface of the box body 101. The support structure 2 includes support legs 201. An anti-slip pad 202 is fixedly connected to the center of the bottom of the support legs 201. The top surface of the support legs 201 is fixedly connected to the bottom surface of the box body 101.

[0026] The overall effect achieved by the entire Embodiment 2 is that through the setting of the heat dissipation pipes 104, the heat inside the box body 101 can be dissipated normally. And through the setting of the display screen 103, it is convenient for the user to view the detection data at any time. During actual use, the PLC controller 102 is electrically connected to multiple components. And through the setting of the support legs 201 and the anti-slip pads 202, the overall stability can be improved.

[0027] Working principle: The user passes the steel wire rope through the ring 115 on one side. When passing through, the first electric push rod 117 extends or retracts, driving the first roller 118 to move, so that the surface of the first roller 118 can fit the outer surface of the steel wire rope. When they are in contact, it can be fixed, enabling it to be stably detected subsequently. Then, the servo motor 112 operates, causing the rotating shaft 113 to rotate. When rotating, it drives one of the belt pulleys 114 to rotate. The belt body 111 is stressed and drives the other belt pulley 114 to rotate, enabling the two second rollers 109 to rotate. Thus, the steel wire rope can pass through the laser rangefinder 105 and the third roller 107. Moreover, the third roller 107 can adjust its height through the cooperation of the second electric push rod 108 to play an auxiliary fixing role, enabling the steel wire rope to be stably conveyed. While passing through, the laser rangefinder 105 continuously detects the distance from itself to the steel wire rope. If the deviation between the consecutive distance values detected by the laser rangefinder 105 exceeds the set value, this section is the damaged section of the steel wire rope. Then, through the cooperation of the display screen 103, it is convenient for the user to observe.

[0028] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An external sensor for flaw detection of crane steel ropes, characterized in that, Including: An overall structure (1) and a support structure (2), wherein the support structure (2) is located at the front and rear positions on both sides of the bottom of the overall structure (1); The overall structure (1) includes a box body (101). At the centers of the outer surfaces on both sides of the box body (101), circular rings (115) are fixedly connected. A plurality of uniformly distributed first electric push rods (117) are fixedly installed on the inner surfaces of the circular rings (115). The extending ends of the first electric push rods (117) are fixedly connected with first rollers (118). Compression springs (116) are sleeved on the outer surfaces of the first electric push rods (117). At the front and rear positions on both sides of the inner bottom of the box body (101), fixing plates (110) are fixedly connected. Second rollers (109) are rotatably connected to the relative sides of the two fixing plates (110) near the top. A pulley (114) is fixedly connected to the outer surface of the front side of the second roller (109). A belt body (111) is slidably connected to the center of the inner surface of the pulley (114).

2. The external sensor for detecting flaws in the steel wire rope of a crane according to claim 1, characterized in that: One end of the compression spring (116) is fixedly connected to the outer surface of the circular ring (115), and the other end of the compression spring (116) is fixedly connected to the outer surface of the first roller (118).

3. The external sensor for flaw detection of the crane wire rope according to claim 1, wherein: A servo motor (112) is fixedly installed on one side of the outer surface of the front side of the fixing plate (110) near the top. The output end of the servo motor (112) is fixedly connected with a rotating shaft (113).

4. The external sensor for flaw detection of a crane steel wire rope according to claim 3, wherein: One end of the rotating shaft (113) penetrates through the surface of the fixing plate (110) and is fixedly connected to the output end of the servo motor (112), and the other end of the rotating shaft (113) is fixedly connected to the outer surface of the front side of one of the pulleys (114).

5. An external sensor for flaw detection of crane steel ropes according to claim 1, characterized in that: Second electric push rods (108) are fixedly installed at the front and rear positions on both sides of the inner top of the box body (101). The extending ends of the second electric push rods (108) are fixedly connected with brackets (106). Third rollers (107) are rotatably connected to the inner surfaces of the brackets (106). A laser rangefinder (105) is fixedly installed at the center of the inner bottom of the box body (101).

6. The external sensor for flaw detection of the crane wire rope according to claim 1, wherein: Heat dissipation pipes (104) penetrate through the positions on both sides of the top of the box body (101). A PLC controller (102) is fixedly installed on one side of the outer surface of the front side of the box body (101), and a display screen (103) is fixedly installed at the center of the outer surface of the front side of the box body (101).

7. An external sensor for detecting flaws in the steel wire rope of a crane according to claim 1, characterized in that: The support structure (2) includes support legs (201). An anti-slip pad (202) is fixedly connected to the center of the bottom of the support legs (201). The top surface of the support legs (201) is fixedly connected to the bottom surface of the box body (101).

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