Portable metro wheel tread parameter detection device

Abstract

The utility model provides a portable metro wheel tread parameter detection device, which relates to the technical field of metro wheel tread detection and comprises a laser scanner. The positioning scanning mechanism is arranged on the surface of the laser scanner, and the positioning scanning mechanism comprises a fixing frame, so that pictures scanned by the laser scanning mechanism are more accurate; the driving mechanism is arranged on the surface of the fixing frame to automatically scan the tread of the wheel, the positioning scanning mechanism further comprises a sliding block, the sliding block is fixedly connected with the laser scanning mechanism, a sliding hole is formed in the surface of the fixing frame, and the sliding block slides on the inner wall of the sliding hole. The surface of the fixing frame is fixedly connected with a positioning plate. According to the utility model, the problem that when a worker holds a laser scanner to scan by hand, the distance of scanning a wheel tread by an instrument is changed, so that a scanned picture is deviated, and the detection accuracy is influenced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to subway wheel tread detection technical field, concretely relates to a portable subway wheel tread parameter detection device. BACKGROUND

[0002] Subway wheel tread detection is a kind of program for monitoring and evaluating subway wheel tread state, since the wear, crack, deformation and other problems of wheel tread will directly affect the running safety and stability of train, by laser scanning wheel tread, generating high-precision three-dimensional profile, for detecting the crack and defect inside wheel, thus regularly detecting wheel tread parameter is crucial.

[0003] When detecting the tread of wheel, after scanning the tread of wheel by using laser scanner, image is transmitted to computer picture, since staff handholds laser scanner to scan, the distance of instrument scanning wheel tread will change, which will cause the deviation of scanned picture, influence the accuracy of detection. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of portable subway wheel tread parameter detection device to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0006] The embodiment of the utility model provides a kind of portable subway wheel tread parameter detection device, comprising:

[0007] Laser scanner;

[0008] Positioning scanning mechanism, the positioning scanning mechanism is arranged on the surface of laser scanner, the positioning scanning mechanism includes fixed frame, so that the picture scanned by laser scanning mechanism is more accurate;

[0009] Driving mechanism, the driving mechanism is arranged on the surface of fixed frame, realizes automatically scanning the tread of wheel.

[0010] Further, the positioning scanning mechanism further includes sliding block, the sliding block is fixedly connected with laser scanning mechanism, the surface of fixed frame is provided with sliding hole, the sliding block is slid on the inner wall of sliding hole, the surface of fixed frame is fixedly connected with positioning plate, the surface of fixed frame is fixedly connected with fixed block, the inner wall of fixed block is threadedly connected with screw rod, and the end of screw rod is fixedly connected with clamping plate.

[0011] Through the above technical scheme, when scanning the tread of wheel by laser scanner, the distance between laser scanner and wheel is same, so that the scanned picture is more stable, effectively improves the accuracy of detection.

[0012] Further, the surface of the positioning plate is fixedly connected with a first rubber pad, and the surface of the clamping plate is fixedly connected with a second rubber pad.

[0013] Through the above technical scheme, when the clamping plate and the positioning plate clamp the wheel, the first rubber pad and the second rubber pad effectively improve the friction of clamping, so that the clamping is more stable.

[0014] Further, the surface of the clamping plate is fixedly connected with two guide rods, the two guide rods are slidingly connected with the fixed block, and the end portion of the guide rod is fixedly connected with a round block.

[0015] Through the above technical scheme, the guide rod limits the movement of the clamping plate, so that the clamping plate moves stably.

[0016] Further, the end portion of the screw rod is fixedly connected with a handle.

[0017] Through the above technical scheme, it is convenient for the staff to rotate the screw rod.

[0018] Further, the driving mechanism comprises an arc-shaped rack, the arc-shaped rack is fixedly connected with the fixed frame, the surface of the sliding block is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a gear, and the gear is meshingly connected with the arc-shaped rack.

[0019] Through the above technical scheme, the servo motor drives the gear to rotate, the gear is meshed with the arc-shaped rack, so that the laser scanner automatically performs scanning operation, and it is convenient for the staff to perform detection operation.

[0020] Further, the end portion of the arc-shaped rack is fixedly connected with two limiting blocks, and the surface of the gear is fixedly connected with a side baffle.

[0021] Through the above technical scheme, the gear and the arc-shaped rack are stably meshed, and the gear is prevented from being separated from the arc-shaped rack.

[0022] The above scheme of the utility model has at least the following beneficial effects:

[0023] 1. The utility model discloses a positioning scanning mechanism, which is used for scanning the tread of a wheel.

[0024] 2. The utility model discloses a driving mechanism, which is used for driving the gear to rotate by using a servo motor, so that the laser scanner automatically performs scanning operation, and it is convenient for the staff to perform detection operation. DRAWINGS

[0025] Figure 1 is the overall structure schematic view of the utility model;

[0026] Figure 2 is the utility model Figure 1 another perspective structure schematic view;

[0027] Figure 3 is the structure schematic view of the screw rod of the utility model;

[0028] Figure 4 is the utility model Figure 2 A place enlarged structure schematic view.

[0029] Mark explanation:

[0030] 1, laser scanner;2, positioning scanning mechanism;201, fixed frame;202, sliding hole;203, sliding block;204, fixed block;205, positioning plate;206, first rubber pad;207, clamping plate;208, second rubber pad;209, screw rod;210, handle;211, guide rod;212, round block;3, driving mechanism;31, servo motor;32, arc-shaped rack;33, gear;34, side baffle;35, limiting block. Specific implementation

[0031] Exemplary embodiments of the present application will be described hereinafter in greater detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0032] As Figures 1 to 4 shown, the embodiment of the utility model provides a portable subway wheel tread parameter detection device, include: laser scanner 1;Positioning scanning mechanism 2, positioning scanning mechanism 2 sets up at the surface of laser scanner 1, positioning scanning mechanism 2 includes fixed frame 201, so that the picture scanned by laser scanning mechanism is more accurate;Driving mechanism 3, driving mechanism 3 sets up at the surface of fixed frame 201, realizes automatically scanning the tread of wheel.

[0033] As Figures 1 to 4As shown, the positioning scanning mechanism 2 further comprises a sliding block 203 fixedly connected with the laser scanning mechanism, the surface of the fixing frame 201 is provided with a sliding hole 202, the sliding block 203 is located in the inner wall of the sliding hole and slides, the surface of the fixing frame 201 is fixedly connected with a positioning plate 205, the surface of the fixing frame 201 is fixedly connected with a fixing block 204, the inner wall of the fixing block 204 is threadedly connected with a screw rod 209, the end of the screw rod 209 is fixedly connected with a clamping plate 207, when the tread of the subway wheel needs to be detected, the staff places the fixing frame 201 on the outer periphery of the wheel, at this time the clamping plate 207 and the positioning plate 205 are located on both sides of the wheel, then the clamping plate 207 is moved by rotating the screw rod 209, the clamping plate 207 is prevented from rotating with the screw rod 209, until the clamping plate 207 and the positioning plate 205 are attached to the wheel, the fixing frame 201 is fixed on the outer ring of the wheel by continuously pushing the clamping plate 207 with the screw rod 209 to extrude the wheel, the sliding block 203 on the laser scanner 1 slides along the sliding hole 202, and the laser scanner 1 scans the outer ring of the wheel, when the laser scanner 1 scans the tread of the wheel, the distance between the laser scanner 1 and the wheel is the same, so that the scanned picture is more stable, and the detection accuracy is effectively improved, the surface of the positioning plate 205 is fixedly connected with a first rubber pad 206, the surface of the clamping plate 207 is fixedly connected with a second rubber pad 208, when the clamping plate 207 and the positioning plate 205 clamp the wheel, the first rubber pad 206 and the second rubber pad 208 effectively improve the clamping friction, so that the clamping is more stable, the surface of the clamping plate 207 is fixedly connected with two guide rods 211, the two guide rods 211 are slidingly connected with the fixing block 204, the end of the guide rod 211 is fixedly connected with a circular block 212, when the screw rod 209 pushes the clamping plate 207 to move, the two guide rods 211 on the clamping plate 207 slide along the fixing block 204, so that the clamping plate 207 moves stably, the guide rod 211 limits the movement of the clamping plate 207, so that the clamping plate 207 moves stably, the end of the screw rod 209 is fixedly connected with a handle 210, which facilitates the staff to rotate the screw rod 209.

[0034] The driving mechanism 3 comprises an arc-shaped rack 32 fixedly connected with the fixing frame 201, the surface of the sliding block 203 is fixedly connected with a servo motor 31, the output end of the servo motor 31 is fixedly connected with a gear 33, the gear 33 is meshingly connected with the arc-shaped rack 32, the servo motor 31 is electrified, after the servo motor 31 is electrified, the servo motor 31 drives the gear 33 to rotate, when the gear 33 rotates, the gear 33 and the arc-shaped rack 32 are meshed, thereby driving the sliding block 203 to slide in the sliding hole 202, so that the laser scanner 1 is driven to move, the laser scanner 1 moves along the outer circle of the wheel, thereby performing automatic scanning operation, the servo motor 31 drives the gear 33 to rotate, the gear 33 and the arc-shaped rack 32 are meshed, thereby enabling the laser scanner 1 to automatically perform scanning operation, facilitating the detection operation of the staff, the end portion of the arc-shaped rack 32 is fixedly connected with two limiting blocks 35, the surface of the gear 33 is fixedly connected with a side baffle 34, so that the gear 33 and the arc-shaped rack 32 are stably meshed, avoiding the gear 33 from being separated from the arc-shaped rack 32.

[0035] In the embodiment of the utility model, when the tread of the subway wheel needs to be detected, the staff places the fixing frame 201 on the outer periphery of the wheel, at this time, the clamping plate 207 and the positioning plate 205 are located on the two sides of the wheel, then the clamping plate 207 is moved by rotating the screw rod 209, when the screw rod 209 pushes the clamping plate 207 to move, the two guide rods 211 on the clamping plate 207 slide along the fixed block 204, thereby enabling the clamping plate 207 to stably move, avoiding the clamping plate 207 from rotating with the screw rod 209, until the clamping plate 207 and the positioning plate 205 are attached to the wheel, the screw rod 209 continuously pushes the clamping plate 207 to extrude the wheel, so that the fixing frame 201 is fixed on the outer ring of the wheel, the sliding block 203 on the laser scanner 1 slides along the sliding hole 202, the laser scanner 1 scans the outer circle of the wheel, then the servo motor 31 is electrified, after the servo motor 31 is electrified, the servo motor 31 drives the gear 33 to rotate, when the gear 33 rotates, the gear 33 and the arc-shaped rack 32 are meshed, thereby driving the sliding block 203 to slide in the sliding hole 202, so that the laser scanner 1 is driven to move, the laser scanner 1 moves along the outer circle of the wheel, thereby performing automatic scanning operation.

[0036] The above is the preferred embodiment of the utility model, it should be pointed out, for ordinary technical personnel in the prior art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A portable parameter detection device for subway wheel treads, characterized in that, include: Laser scanner (1); Positioning scanning mechanism (2), which is disposed on the surface of laser scanner (1), includes a fixing frame (201) to make the image scanned by the laser scanning mechanism more accurate; The drive mechanism (3) is disposed on the surface of the fixed frame (201) to automatically scan the tread of the wheel.

2. The portable subway wheel tread parameter detection device according to claim 1, characterized in that, The positioning scanning mechanism (2) further includes a slider (203), which is fixedly connected to the laser scanning mechanism. The surface of the fixed frame (201) is provided with a sliding hole (202). The slider (203) slides on the inner wall of the sliding hole (202). The surface of the fixed frame (201) is fixedly connected with a positioning plate (205). The surface of the fixed frame (201) is fixedly connected with a fixing block (204). The inner wall of the fixing block (204) is threaded with a screw (209). The end of the screw (209) is fixedly connected with a clamping plate (207).

3. The portable subway wheel tread parameter detection device according to claim 2, characterized in that, The surface of the positioning plate (205) is fixedly connected to a first rubber pad (206), and the surface of the clamping plate (207) is fixedly connected to a second rubber pad (208).

4. The portable subway wheel tread parameter detection device according to claim 2, characterized in that, Two guide rods (211) are fixedly connected to the surface of the clamp (207). The two guide rods (211) are slidably connected to the fixing block (204). A round block (212) is fixedly connected to the end of the guide rod (211).

5. The portable subway wheel tread parameter detection device according to claim 2, characterized in that, A handle (210) is fixedly connected to the end of the screw (209).

6. The portable subway wheel tread parameter detection device according to claim 2, characterized in that, The drive mechanism (3) includes an arc rack (32), which is fixedly connected to the fixed frame (201). A servo motor (31) is fixedly connected to the surface of the slider (203). A gear (33) is fixedly connected to the output end of the servo motor (31), and the gear (33) meshes with the arc rack (32).

7. The portable subway wheel tread parameter detection device according to claim 6, characterized in that, Two limiting blocks (35) are fixedly connected to the end of the arc-shaped rack (32), and a side baffle (34) is fixedly connected to the surface of the gear (33).

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