Elevator steel wire rope diameter dynamic wear detection caliper

Abstract

The utility model relates to elevator steel wire rope diameter dynamic wear detection technical field, specifically is a kind of elevator steel wire rope diameter dynamic wear detection caliper, including main ruler and the outside slide joint of its vice ruler, the one end of main ruler is fixedly connected with fixed claw, the inside surface of vice ruler is fixedly connected with slider, vice ruler bottom is fixedly connected with movable jaw, fixed claw and movable jaw lower part are rotatably connected with gyro wheel, the top of vice ruler is provided with fixed assembly;Fixed assembly includes the slot of setting in the top of vice ruler, the middle part of slot is rotatably connected with clamping plate, it fixes main ruler and vice ruler by clamping plate rotation. Realize the fixation of steel wire rope, camber surface can better adhere to the round cross section of steel wire rope, reduce the measurement deviation caused by the surface wear of steel wire rope, can more accurate capture actual diameter change, guide steel wire rope to enter the measuring position quickly, improve the detection efficiency and detection accuracy of detection caliper, reduce the operation difficulty.

Description

Technical Field

[0001] This utility model relates to the field of dynamic wear detection technology for elevator wire rope diameter, specifically a dynamic wear detection caliper for elevator wire rope diameter. Background Technology

[0002] The elevator wire rope diameter dynamic wear detection caliper is a specialized measuring tool used to quantitatively assess the wear degree of wire ropes. It primarily determines the wear condition by measuring changes in the wire rope diameter. In elevator safety maintenance, the reduction in wire rope diameter is one of the core indicators for determining whether wear exceeds the standard. This tool provides data support for replacement decisions through high-precision measurement.

[0003] In existing technologies, elevator wire rope diameter dynamic wear testing calipers are mostly planar measuring claws that require tightening a knob to fix the vernier scale. When performing dynamic wear testing on the wire rope diameter, manual operation is required to keep the caliper perpendicular to the wire rope. The caliper position needs to be repeatedly adjusted to ensure alignment. If the caliper is not perpendicular to the rope axis, the measured value will be too large (due to oblique cutting of the diameter), which will mask the true degree of wear. When fixing the vernier scale, the caliper and wire rope need to be fixed while the knob is tightened to fix the vernier scale. When testing alone, both fixing and reading need to be done simultaneously, which increases the risk of misoperation. In the compact shaft or oily environment of freight elevators, the operating space is limited, which increases the difficulty of the testing operation.

[0004] Therefore, this utility model provides a dynamic wear detection caliper for elevator steel wire rope diameter that is easy to fix with a secondary scale, can guide the steel wire rope to quickly enter the measurement position, and can reduce the impact of caliper tilt on the test results. Utility Model Content

[0005] To address the problems of existing elevator wire rope diameter dynamic wear detection calipers, such as easy caliper skew, inability to clamp the wire rope tightly, and difficulty in observation, a new type of elevator wire rope diameter dynamic wear detection caliper has been designed.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a dynamic wear detection caliper for elevator wire rope diameter, including a main scale and a secondary scale that is slidably clamped to its outer side. A fixed claw is fixedly connected to one end of the main scale, a slider is fixedly connected to the inner surface of the secondary scale, a movable claw is fixedly connected to the bottom of the secondary scale, and rollers are rotatably connected to the lower parts of both the fixed claw and the movable claw. A fixing component is provided at the top of the secondary scale; the fixing component includes a slot provided at the top of the secondary scale, and a clamping plate is rotatably connected to the middle of the slot, which rotatably fixes the main scale and the secondary scale through the clamping plate.

[0007] Preferably, the main scale has two fixed claws that are fixedly connected to it, and the fixed claws slide relative to the movable claw when they come into contact.

[0008] Preferably, the inner sides of the fixed claw and the movable claw are arc surfaces, and a limit plate is fixedly connected to the middle of the fixed claw.

[0009] Preferably, a reset groove is provided on the side of the card slot, a circular card block is slidably connected to the opening of the reset groove, a spring is fixedly connected to the side of the circular card block, and the end of the spring away from the circular card block is fixedly connected to the reset groove.

[0010] Preferably, the upper part of the card plate is connected to the circular card block for transmission, and the bottom of the card plate is fixedly connected with an anti-slip strip.

[0011] Preferably, the width of the upper part of the card plate is smaller than the width of the card slot, and the width of the lower part of the card plate is smaller than the width of the slide groove.

[0012] Preferably, the main ruler has grooves on both sides, and the slider is slidably engaged with the grooves.

[0013] Preferably, the starting point of the main scale is aligned with the center point of the arc surface of the fixed claw, and the measuring point of the vernier scale is aligned with the center position of the arc surface of the movable claw.

[0014] The beneficial effects of this utility model are:

[0015] (1) The elevator wire rope diameter dynamic wear detection caliper described in this utility model achieves the fixation of the wire rope through the cooperation of the arc-shaped measuring claw and the roller. The arc surface can better fit the circular cross section of the wire rope, reduce the measurement deviation caused by the wear of the wire rope surface, and more accurately capture the actual diameter change. It improves the versatility of the inlet side roller guide. The roller can reduce the friction between the caliper and the wire rope during measurement, avoid scratching the worn wire rope due to hard contact, and guide the wire rope to quickly enter the measurement position, thereby improving the detection efficiency and accuracy of the detection caliper.

[0016] (2) The elevator wire rope diameter dynamic wear detection caliper described in this utility model solves the problem that traditional calipers require two hands to operate and fix through the cooperation of the caliper plate and the circular caliper block. A single person can complete the "alignment-fixing-reading" process. It is more practical in scenarios with narrow space and limited operation, such as elevator shafts, which reduces the difficulty of operation and also reduces measurement errors caused by improper operation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0019] Figure 2 A cross-sectional structural schematic diagram provided for this utility model;

[0020] Figure 3A cross-sectional structural schematic diagram provided for this utility model;

[0021] Figure 4 for Figure 2 A magnified structural diagram at point A;

[0022] Figure 5 for Figure 3 A magnified structural diagram at point B.

[0023] In the diagram: 1. Main scale; 2. Fixed claw; 3. Limiting plate; 4. Roller; 5. Secondary scale; 6. Slider; 7. Fixed component; 71. Slot; 72. Card plate; 73. Reset slot; 74. Circular block; 75. Spring; 8. Movable claw; 9. Slide. Detailed Implementation

[0024] To make the technical means, technical features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Example: Figures 1-5 As shown, a dynamic wear caliper for elevator wire rope diameter includes a main scale 1 and a secondary scale 5 slidably engaged on its outer side. A fixed claw 2 is fixedly connected to one end of the main scale 1. A slider 6 is fixedly connected to the inner surface of the secondary scale 5. A movable claw 8 is fixedly connected to the bottom of the secondary scale 5. Rollers 4 are rotatably connected to the lower parts of both the fixed claw 2 and the movable claw 8. A fixing component 7 is provided at the top of the secondary scale 5. The fixing component 7 includes a slot 71 located at the top of the secondary scale 5, and a locking plate 72 is rotatably connected to the middle of the slot 71. The locking plate 72 rotatably fixes the main scale 1 and the secondary scale 5. The rollers 4 guide the wire rope into the detection claw. The arc surface on the inner side of the detection claw has a larger contact area with the cylindrical surface of the wire rope, reducing the influence of wire rope or caliper tilt on the measurement results during the measurement process, making the detection operation simpler and easier to observe the results.

[0026] In this embodiment, as Figure 1 As shown, there are two fixed claws 2 fixedly connected to the main scale 1. When the fixed claws 2 and the movable claws 8 are in contact, they slide relative to each other. This increases the contact area between the detection claws and the wire rope, improves the accuracy of the detection results, and avoids the impact of the caliper's applicability caused by the protrusions on both sides of the arc surfaces of the fixed claws 2 and the movable claws 8.

[0027] In this embodiment, as Figure 3 As shown, the inner sides of the fixed claw 2 and the movable claw 8 are arc surfaces, and a limit plate 3 is fixedly connected to the middle of the fixed claw 2. The inner arc generates clamping force to prevent the wire rope from bending due to relative movement between the fixed claw 2 and the movable claw 8, thus ensuring stable data during testing.

[0028] In this embodiment, as Figure 3As shown, a reset groove 73 is provided on the side of the slot 71. A circular locking block 74 is slidably connected to the opening of the reset groove 73. A spring 75 is fixedly connected to the side of the circular locking block 74, and the end of the spring 75 away from the circular locking block 74 is fixedly connected to the reset groove 73. After the locking plate 72 is moved, the circular locking block 74 can be reset, limiting the locking plate 72 and preventing the locking plate 72 from shifting and causing the vernier scale 5 to shift when observing the scale.

[0029] In this embodiment, as Figure 2 As shown, the upper part of the card plate 72 is connected to the circular card block 74, and an anti-slip strip is fixedly connected to the bottom of the card plate 72. It is used to fix the main scale 1 and the auxiliary scale 5. When the card plate 72 is moved, the circular card block 74 moves to both sides along the reset groove 73. When the card plate 72 rotates to one side of the circular card block 74, the circular card block 74 pops out to limit its movement.

[0030] In this embodiment, as Figure 3 As shown, the width of the upper part of the clamping plate 72 is smaller than the width of the clamping groove 71, and the width of the lower part of the clamping plate 72 is smaller than the width of the slide groove 9. This allows the clamping plate 72 to rotate freely within the slide groove 9 and the clamping groove 71, ensuring the normal use of the caliper.

[0031] In this embodiment, as Figure 2 As shown, the main scale 1 has grooves 9 on both sides, and the slider 6 is slidably engaged with the grooves 9. This allows the secondary scale 5 to slide along a predetermined trajectory, preventing the position of the secondary scale 5 from shifting during the inspection process, which would affect the caliper's inspection results and efficiency.

[0032] In this embodiment, as Figure 1 As shown, the starting point of the scale on the main scale 1 is aligned with the center point of the arc surface of the fixed jaw 2, and the measuring point on the secondary scale 5 is aligned with the center position of the arc surface of the movable jaw 8. This ensures that the contact point between the caliper and the wire rope is consistent with the scale on the main scale 1, guaranteeing that the center of the arc surface is used as the reference point for each measurement.

[0033] Working principle: When performing dynamic testing of elevator wire rope diameter, the wire rope is brought into the measuring position along the roller 4 on the open side of the testing claw. The main scale 1 hooks the wire rope, so that the fixed claw 2 is in contact with the wire rope. When the auxiliary scale 5 is pushed and the movable claw 8 is clamped with the wire rope, the clamping plate 72 is pressed to fix the main scale 1 and the auxiliary scale 5. The caliper test results are observed. After the test is completed, the clamping plate 72 is pushed upward to push the auxiliary scale 5 to open the testing claw and retrieve the caliper.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dynamic wear test caliper for elevator wire rope diameter, comprising a main scale and a secondary scale slidably engaged on its outer side, characterized in that: A fixed claw is fixedly connected to one end of the main scale, a slider is fixedly connected to the inner surface of the secondary scale, a movable claw is fixedly connected to the bottom of the secondary scale, and rollers are rotatably connected to the lower parts of both the fixed claw and the movable claw. A fixing component is provided on the top of the secondary scale. The fixing component includes a slot at the top of the vernier scale, with a locking plate rotatably connected to the center of the slot, which fixes the main scale and vernier scale by rotating the locking plate.

2. The elevator wire rope diameter dynamic wear detection caliper according to claim 1, characterized in that: There are two fixed claws fixedly connected to the main scale, and the fixed claws slide relative to each other when they come into contact with the movable claw.

3. The elevator wire rope diameter dynamic wear detection caliper according to claim 2, characterized in that: The inner sides of the fixed claw and the movable claw are arc surfaces, and a limit plate is fixedly connected to the middle of the fixed claw.

4. The elevator wire rope diameter dynamic wear detection caliper according to claim 3, characterized in that: A reset groove is provided on the side of the card slot. A circular card block is slidably connected to the opening of the reset groove. A spring is fixedly connected to the side of the circular card block. The end of the spring away from the circular card block is fixedly connected to the reset groove.

5. A dynamic wear test caliper for elevator wire rope diameter according to claim 4, characterized in that: The upper part of the card plate is connected to the circular card block for transmission, and the bottom of the card plate is fixedly connected with an anti-slip strip.

6. The dynamic wear detection caliper for elevator wire rope diameter according to claim 5, characterized in that: The width of the upper part of the card plate is smaller than the width of the card slot, and the width of the lower part of the card plate is smaller than the width of the slide groove.

7. A dynamic wear test caliper for elevator wire rope diameter according to claim 6, characterized in that: The main ruler has grooves on both sides, and the slider slides and engages with the grooves.

8. A dynamic wear detection caliper for elevator wire rope diameter according to claim 7, characterized in that: The starting point of the main scale is aligned with the center point of the arc surface of the fixed claw, and the measuring point of the vernier scale is aligned with the center position of the arc surface of the movable claw.

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