Diameter-adjustable device

Abstract

The diameter-adjustable device is characterized in that the diameter-adjustable device comprises a shell, a guide ring, reducing rings, a reducing structure and a reducing sliding block, the shell is cylindrical, the lower bottom face and the upper bottom face of the shell are matched with the two reducing rings with notches opposite in spiral direction respectively, the reducing ring on the lower bottom face and the shell are fixed into a whole, and the reducing structure is arranged on the lower bottom face of the shell. The guide ring is embedded in the variable-diameter ring, and the variable-diameter structure is matched with the variable-diameter ring and the guide ring. The invention has the following beneficial effects: 1, the diameter adjustment inner channel body is always round, which is beneficial to detection and passing of steel wire ropes with different calibers; 2, the problem that guide rings and sensors with matched calibers need to be replaced when steel wire ropes with different diameters are detected is solved; thirdly, the optimal detection distance between the sensor and the steel wire rope can be achieved by adjusting the caliber, and the problems of missing detection and error detection are effectively reduced; operation is easy and convenient, and consumption of manpower and material resources is reduced; and fifthly, the device adopts a modular design, so that a single piece can be replaced after the device is abraded.

Description

Technical Field

[0001] The present invention belongs to the diameter adjustment technology, specifically, a method for controlling the diameter to be smoothly and accurately scaled, which has a long service life and can realize the passage and detection of steel wire ropes of various diameters by changing the internal diameter, so that the sensor and the surface of the steel wire rope reach the optimal detection distance. Background Art

[0002] The diameter adjustment device is a relatively common diameter adjustment device. However, the structure of the device for changing the diameter involved in daily life and industrial production is relatively complicated. Due to the limitations of structure and materials, this type of conventional adjustment device cannot flexibly control the diameter size in a small space to achieve the passage and detection of various different diameter columns.

[0003] At present, there is no variable diameter device that can be used in non-destructive testing devices involving wire ropes. When conventional non-destructive testing devices detect wire ropes of different diameters, if the diameter span of the detected wire rope is large, it is usually necessary to replace the diameter guide ring of different models, or replace the sensor with a different detection range to achieve the best detection effect. This type of adjustment cannot effectively and accurately control the detection effect, the operation is relatively complicated and cumbersome, and it also has a great impact on the service life of local wear parts, causing premature damage to internal parts. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem of detection effect of steel wire ropes of different diameters in non-destructive testing of steel wire ropes, and to provide a new and easy-to-operate diameter-changing device to solve the problem of distance control between the probe and the rope when detecting steel wire ropes of different calibers. It can achieve precise control of the optimal detection distance and reduce the waste of manpower and material resources caused by frequent replacement of guide rings of different models or replacement of sensors with different detection ranges.

[0005] The technical solution adopted by the present invention is: a diameter adjustable device, characterized in that it includes a shell, a guide ring, a reducing ring, a reducing structure and a reducing slider, the shell is cylindrical, and the lower bottom surface and the upper bottom surface of the shell are respectively matched with two reducing rings with opposite spiral directions of the grooves, wherein the lower bottom surface reducing ring and the shell are fixed as a whole, the guide ring is embedded in the reducing ring, and the reducing structure cooperates with the reducing ring and the guide ring.

[0006] The reducing ring of the present invention is a cylinder with four arc-shaped notches in a spiral shape. The notches are used to cooperate with the reducing structure, and the diameter change is achieved by rotating the reducing ring.

[0007] The guide ring described in the present invention is a circular ring with four notches, and has two diameter-changing rings respectively embedded in the upper and lower bottom surfaces, so as to prompt the diameter-changing slider to move in the radial direction during the diameter-changing process.

[0008] The variable diameter slider described in the present invention is a slider with a cylindrical structure and a boss guide plate on both the upper and lower sides. The cylindrical structure corresponds to the upper and lower variable diameter ring grooves to complete the diameter change, and the convex guide plate corresponds to the guide notches of the upper and lower guide rings, so that the variable diameter slider can only move radially in the direction specified by the guide ring notches.

[0009] The variable diameter structure described in the present invention is composed of four variable diameter sliders surrounded by the center. The upper and lower cylindrical structures of the variable diameter slider correspond to the upper and lower variable diameter ring notches, and can change in the groove along with the arc shape of the notch. Since the spiral directions of the notches of the upper and lower bottom variable diameter rings are opposite, the diameter of the opening will change during the rotation process. The upper and lower guide plates of the variable diameter slider correspond to the guide notches of the upper and lower guide rings, so that the variable diameter slider can only move radially in the direction specified by the guide ring notch. The combination of the two enables the inner side surfaces of the four variable diameter sliders to always be circular during the entire process of diameter change, so as to adjust the size of the circular diameter.

[0010] The beneficial effects of the present invention are: first, the shape of the internal diameter adjusting body is always circular, which is conducive to the detection and passage of wire ropes of different diameters; second, it well solves the problem that when the nondestructive testing device detects wire ropes of different diameters, the diameter span of the detected wire ropes is large, and it is necessary to replace the guide ring with a matching diameter, or replace the sensor with a different detection range; third, the diameter adjustment can make the sensor and the wire rope reach the optimal detection distance, and the final detection effect is obviously effective, which greatly increases the stability of the detection and effectively reduces the problems of missed detection and wrong detection; fourth, it is simple to operate, and there are pointers and scales on the outside of the diameter reducing device. The adjustment handle can be turned according to the diameter requirements, which reduces the consumption of manpower and material resources, and the diameter reducing structure is simple, reliable and has a long service life; fifth, the device is modularly designed, and after wear, a single part can be replaced, and other parts can be used normally; sixth, the structure is compact and ingenious, and slots are used in multiple places to reduce wear and increase the working stability of the diameter reducing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the appearance of the present invention.

[0012] Figure 2 and Figure 3 It is an exploded view of the present invention.

[0013] Figure 4 It is a state diagram of the diameter-changing mechanism of the present invention.

[0014] Figure 5 It is another state diagram of the diameter-changing mechanism of the present invention.

[0015] Figure 6 yes Figure 4 Left view of the state diagram.

[0016] Figure 7 yes Figure 5Left view of another shape diagram. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings The present invention discloses a diameter adjustable device, characterized in that it comprises a housing, a guide ring, a diameter-changing ring, a diameter-changing structure and a diameter-changing slider. The housing is cylindrical, and the lower bottom surface and the upper bottom surface of the housing are respectively matched with two diameter-changing rings with opposite spiral directions of notches, wherein the lower bottom surface diameter-changing ring and the housing are fixed as one, the guide ring is embedded in the diameter-changing ring, and the diameter-changing structure cooperates with the diameter-changing ring and the guide ring. The diameter-changing ring of the present invention is a cylinder, and there are four arc-shaped notches on it in a spiral shape. The notches are used to cooperate with the diameter-changing structure, and the diameter size is changed by rotating the diameter-changing ring. The guide ring of the present invention is a circular ring with four notches, and there are two diameter-changing rings respectively embedded in the upper and lower bottom surfaces, which prompt the diameter-changing slider to move in the radial direction during the diameter-changing process. The diameter-changing slider of the present invention is a cylindrical structure and a boss guide plate on both the upper and lower surfaces, and the cylindrical structure corresponds to the notches of the upper and lower diameter-changing rings to complete the diameter change, and the boss guide plate corresponds to the guide notches of the upper and lower guide rings, so that the diameter-changing slider can only move radially in the direction specified by the notch of the guide ring. The variable diameter structure described in the present invention is composed of four variable diameter sliders surrounded by the center. The upper and lower cylindrical structures of the variable diameter sliders correspond to the upper and lower variable diameter ring notches, and can change in the groove along with the arc shape of the notches. Since the spiral directions of the notches of the upper and lower bottom variable diameter rings are opposite, the diameter of the opening will change during the rotation process. The upper and lower guide plates of the variable diameter slider correspond to the guide notches of the upper and lower guide rings, so that the variable diameter slider can only move radially in the direction specified by the guide ring notches. The combination of the two enables the inner side surfaces of the four variable diameter sliders to always be circular during the entire process of diameter change to adjust the size of the circular diameter. The beneficial effects of the present invention are: first, the shape of the internal diameter adjusting body is always circular, which is conducive to the detection and passage of wire ropes of different diameters; second, it well solves the problem that when the nondestructive testing device detects wire ropes of different diameters, the diameter span of the detected wire ropes is large, and it is necessary to replace the guide ring with a matching diameter, or replace the sensor with a different detection range; third, the diameter adjustment can make the sensor and the wire rope reach the optimal detection distance, and the final detection effect is obviously effective, which greatly increases the stability of the detection and effectively reduces the problems of missed detection and wrong detection; fourth, it is simple to operate, and there are pointers and scales on the outside of the diameter reducing device. The adjustment handle can be turned according to the diameter requirements, which reduces the consumption of manpower and material resources, and the diameter reducing structure is simple, reliable and has a long service life; fifth, the device is modularly designed, and after wear, a single part can be replaced, and other parts can be used normally; sixth, the structure is compact and ingenious, and slots are used in multiple places to reduce wear and increase the working stability of the diameter reducing device.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, a diameter adjustable device includes a diameter reducing ring 1, a shell 2, a guide ring 3, a diameter reducing structure 4, and a diameter reducing slider 5.

[0019] like Figure 4 and Figure 5 As shown, a diameter adjustable device, the upper and lower surfaces of the variable diameter slider 5 are provided with a cylindrical structure and a boss guide plate, which can be respectively matched and connected with the notches on the variable diameter ring 1 and the guide ring 3, respectively constraining the rotation angle and radial movement of the variable diameter slider 5. The combination of the two ensures that the inner side surfaces of the four variable diameter sliders are always circular during the entire process of diameter change, so as to adjust the diameter size.

Claims

1. A diameter adjustable device, characterized in that It includes a shell, a guide ring, a reducing ring and a reducing structure. The shell is cylindrical, and the lower bottom surface and the upper bottom surface of the shell are respectively matched with two reducing rings in opposite directions, wherein the lower bottom surface reducing ring and the shell are fixed as a whole, the guide ring is embedded in the reducing ring, and the reducing structure cooperates with the reducing ring and the guide ring.

2. A diameter adjustable device according to claim 1, characterized in that The reducing ring and the guide ring are connected in an embedded manner and can rotate relative to each other.

3. A diameter adjustable device according to claim 1, characterized in that The upper and lower cylindrical mechanisms of the reducing slide block correspond to the upper and lower reducing ring notches.

4. A diameter adjustable device according to claim 2 or 3, characterized in that The upper and lower boss guide plates of the variable-diameter sliding block correspond to the guide notches of the upper and lower guide rings.

5. The diameter adjustable device according to claim 1, characterized in that The reducing ring is a cylinder with four arc-shaped notches in a spiral shape. The notches are used to cooperate with the reducing structure, and the diameter change is achieved by rotating the reducing ring.

6. The diameter adjustable device according to claim 1, characterized in that The guide ring is a circular ring with four notches, and has two reducing rings respectively embedded in the upper and lower bottom surfaces, so as to cause the reducing slide block to move in the radial direction during the reducing process.

7. A diameter adjustable device according to claim 5 or 6, characterized in that The variable diameter structure is composed of four variable diameter sliders surrounded by the center. The upper and lower cylindrical structures of the variable diameter sliders correspond to the upper and lower variable diameter ring notches, and can change in the groove with the arc shape of the notch. Since the spiral directions of the notches of the upper and lower bottom variable diameter rings are opposite, the diameter of the opening will change during the rotation process. The upper and lower guide plates of the variable diameter slider correspond to the guide notches of the upper and lower guide rings, so that the variable diameter slider can only move radially in the specified direction of the guide ring notch. The combination of the two ensures that the inner side surfaces of the four variable diameter sliders are always circular during the entire process of diameter change to adjust the size of the circular diameter.

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