High-precision magnetostrictive sensor for wheel detection

Abstract

The utility model discloses a high-precision magnetostrictive sensor for wheel detection, which relates to the technical field of wheel detection and comprises a balancing weight and a guide rod, the guide rod is mounted on the upper wall surface of the balancing weight, a support spring is sleeved on the outer wall surface of the guide rod, and a first guide structure is sleeved on the outer wall surface of the guide rod; the utility model has the advantages that the driving wheel is aligned with the longitudinal groove of the tire, then the telescopic rod is extended to drive the calibration sleeve to rotate around the auxiliary guide rod towards the tire to be horizontal, then the telescopic rod is held to drive the calibration sleeve to move forwards along the auxiliary guide rod, the position of the reference block and the center of the tire is observed, and then the adjusting nut is rotated around the adjusting screw rod to adjust the position of the tire. The adjusting nut is matched with the supporting spring through the limiting sliding sleeve to drive the guiding sliding sleeve to move up and down along the guiding rod till the reference block is flush with the center of the tire, height pairing is completed, and the problems that an existing magnetostrictive sensor for wheel detection is not provided with an adjusting structure, the tire needs to be detached for detection, and the operation is very troublesome are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel detection technical field, especially a kind of high-precision magnetostrictive sensor for wheel detection. BACKGROUND

[0002] The main purpose of wheel pattern detection is to ensure driving safety, by measuring tire pattern depth to determine whether the tire needs to be replaced, so as to avoid safety hazards caused by excessive tire wear. Since the tire detection environment is complex, it is often combined with a magnetostrictive sensor for longitudinal groove depth detection.

[0003] The existing magnetostrictive sensor for wheel detection does not have an adjustment structure, and the tire needs to be disassembled for detection, which is very troublesome. After long-term use of the tire, the longitudinal groove roundness will change, affecting the longitudinal groove depth. The existing magnetostrictive sensor for wheel detection can only detect the longitudinal groove depth of the tire at a single position, and the accuracy is insufficient. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the existing magnetostrictive sensor for wheel detection does not have an adjustment structure, and the tire needs to be disassembled for detection, which is very troublesome. After long-term use of the tire, the longitudinal groove roundness will change, affecting the longitudinal groove depth. The existing magnetostrictive sensor for wheel detection can only detect the longitudinal groove depth of the tire at a single position, and the accuracy is insufficient.

[0005] To solve the above technical problems, the technical scheme of the utility model is a high-precision magnetostrictive sensor for wheel detection, which includes a counterweight and a guide rod. The guide rod is installed on the upper wall of the counterweight. The outer wall of the guide rod is sleeved with a supporting spring. The outer wall of the guide rod is sleeved with a first guide structure. The outer wall of the first guide structure is connected with a second guide structure. The second guide structure is installed with a sensing structure. The outer wall of the sensing structure is sleeved with a detection structure. The outer wall of the first guide structure is installed with a calibration structure. The outer wall of the guide rod is sleeved with an adjustment structure.

[0006] As a further scheme of the utility model, the second guide structure includes an auxiliary fixing frame, two slide rails and two auxiliary slide sleeves. The auxiliary fixing frame is installed on the outer wall of the guide sleeve. Two slide rails are installed on the upper and lower walls of the auxiliary fixing frame, respectively. Two auxiliary slide sleeves are installed on the front wall of the auxiliary fixing frame, respectively.

[0007] As a further scheme of the utility model: the sensing structure includes: magnetostrictive sensor body, two positioning wheels and two auxiliary springs, the magnetostrictive sensor body is installed on the inner wall surface of auxiliary fixed frame, two positioning wheels are installed on the front wall surface of auxiliary fixed frame respectively, two auxiliary springs are respectively sleeved on the outer wall surface of two auxiliary sliding sleeves.

[0008] As a further scheme of the utility model: the detection structure includes: induction magnetic sleeve, detection fixed frame, transmission wheel and two detection guide rods, the induction magnetic sleeve is sleeved on the outer wall surface of magnetostrictive sensor body, the detection fixed frame is installed on the outer wall surface of induction magnetic sleeve, the transmission wheel is installed on the front wall surface of detection fixed frame, two detection guide rods are respectively installed on the upper and lower two wall surfaces of detection fixed frame and are connected with two auxiliary sliding sleeves.

[0009] As a further scheme of the utility model: the calibration structure includes: calibration sleeve, telescopic rod and reference block, the calibration sleeve is sleeved on the outer wall surface of vice guide rod, the telescopic rod is installed on the outer wall surface of calibration sleeve, and the reference block is installed on the front end surface of telescopic rod.

[0010] As a further scheme of the utility model: the adjusting structure includes: adjusting screw rod, adjusting nut and limiting sliding sleeve, the adjusting screw rod is installed on the upper wall surface of guide rod, the adjusting nut is sleeved on the outer wall surface of adjusting screw rod, and the limiting sliding sleeve is installed on the lower wall surface of adjusting nut.

[0011] As a further scheme of the utility model: the outer wall surface of vice guide rod is sleeved with reset spring.

[0012] The utility model adopts above-mentioned technical scheme, compared with prior art, has following advantages:

[0013] The transmission wheel is aligned with tire longitudinal groove, then the telescopic rod is elongated, drives calibration sleeve to rotate around vice guide rod to tire direction to horizontal, then holds telescopic rod and drives calibration sleeve to move forward along vice guide rod, observes the position of reference block and tire center, then rotates adjusting nut around adjusting screw rod, adjusting nut drives guide sliding sleeve to move up and down along guide rod through the cooperation of limiting sliding sleeve and supporting spring, until reference block is flush with tire center, completes height pairing, solves the problem that the existing magnetostrictive sensor for wheel detection does not have adjusting structure, needs to disassemble tire to detect, is very troublesome.

[0014] The high-precision magnetostrictive sensor for detecting a tire wheel is characterized in that the detection fixed frame drives the inductive magnetic sleeve to slide along the magnetostrictive sensor body, and the sliding of the magnetostrictive sensor body starts to measure the tire groove depth; when the two positioning wheels are in contact with the tire surface, the preliminary measurement is ended; when the longitudinal groove depth is insufficient, an alarm is sounded; if it is qualified, a prompt sound is sounded; then the longitudinal groove inner diameter roundness can be further measured; the error alarm value is reset in the control center; the tire is rotated for one round; when the longitudinal groove roundness is insufficient, the alarm is sounded again; if it is qualified, the prompt sound is sounded; the longitudinal groove inner diameter roundness is avoided by twice measurement, the longitudinal groove depth measurement accuracy is further improved, and the problem of the existing magnetostrictive sensor for detecting a tire wheel that can only detect the tire groove depth at a single position and the insufficient accuracy are solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the high-precision magnetostrictive sensor for detecting a tire wheel in the embodiment of the utility model;

[0016] Figure 2 It is a first guide structure schematic view of the high-precision magnetostrictive sensor for detecting a tire wheel in the embodiment of the utility model;

[0017] Figure 3 It is a detection structure schematic view of the high-precision magnetostrictive sensor for detecting a tire wheel in the embodiment of the utility model;

[0018] Figure 4 It is a calibration structure schematic view of the high-precision magnetostrictive sensor for detecting a tire wheel in the embodiment of the utility model.

[0019] In the drawing: 1, counterweight; 2, guide rod; 3, supporting spring; 4, guide sliding sleeve; 5, auxiliary guide rod; 6, limit block; 7, auxiliary fixed frame; 8, sliding rail; 9, auxiliary sliding sleeve; 10, magnetostrictive sensor body; 11, positioning wheel; 12, auxiliary spring; 13, inductive magnetic sleeve; 14, detection fixed frame; 15, transmission wheel; 16, detection guide rod; 17, calibration sleeve; 18, telescopic rod; 19, reference block; 20, adjusting screw; 21, adjusting nut; 22, limit sliding sleeve; 23, reset spring. DETAILED DESCRIPTION

[0020] The specific embodiments of the utility model will be further described below in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Please refer to Figures 1-4The utility model provides a kind of high-precision magnetostrictive sensor for wheel detection, including counterweight 1 and guide rod 2, guide rod 2 is installed on the upper wall surface of counterweight 1, the outer wall surface of guide rod 2 is equipped with support spring 3, the outer wall surface of guide rod 2 is equipped with first guide structure, the outer wall surface of first guide structure is connected with second guide structure, and sensing structure is installed in second guide structure, the outer wall surface of sensing structure is equipped with detection structure, the outer wall surface of first guide structure is installed with calibration structure, the outer wall surface of guide rod 2 is equipped with adjusting structure;First guide structure includes: guide sliding sleeve 4, vice guide rod 5 and limit block 6;Telescopic guide sliding sleeve 4 is equipped on the outer wall surface of guide rod 2, vice guide rod 5 is installed on the outer wall surface of guide sliding sleeve 4, and limit block 6 is installed on the outer end surface of vice guide rod 5.

[0022] Please refer to Figure 2 Second guide structure includes: auxiliary fixing frame 7, two slide rails 8 and two auxiliary sliding sleeves 9;Auxiliary fixing frame 7 is installed on the outer wall surface of guide sliding sleeve 4, two slide rails 8 are respectively installed on the upper and lower two wall surfaces of auxiliary fixing frame 7, and two auxiliary sliding sleeves 9 are respectively installed on the front wall surface of auxiliary fixing frame 7.

[0023] Please refer to Figure 3 Sensing structure includes: magnetostrictive sensor body 10, two positioning wheels 11 and two auxiliary springs 12;Magnetostrictive sensor body 10 is installed on the inner wall surface of auxiliary fixing frame 7, two positioning wheels 11 are respectively installed on the front wall surface of auxiliary fixing frame 7, and two auxiliary springs 12 are respectively equipped on the outer wall surface of two auxiliary sliding sleeves 9.

[0024] Please refer to Figure 3 Detection structure includes: induction magnetic sleeve 13, detection fixing frame 14, transmission wheel 15 and two detection guide rods 16;Induction magnetic sleeve 13 is equipped on the outer wall surface of magnetostrictive sensor body 10, detection fixing frame 14 is installed on the outer wall surface of induction magnetic sleeve 13, transmission wheel 15 is installed on the front wall surface of detection fixing frame 14, two detection guide rods 16 are respectively installed on the upper and lower two wall surfaces of detection fixing frame 14, and are connected with two auxiliary sliding sleeves 9.

[0025] Please refer to Figure 4 Calibration structure includes: calibration sleeve 17, telescopic rod 18 and reference block 19;Calibration sleeve 17 is equipped on the outer wall surface of vice guide rod 5, telescopic rod 18 is installed on the outer wall surface of calibration sleeve 17, and reference block 19 is installed on the front end surface of telescopic rod 18.

[0026] Please refer to Figure 4 Adjusting structure includes: adjusting screw 20, adjusting nut 21 and limit sliding sleeve 22;Adjusting screw 20 is installed on the upper wall surface of guide rod 2, adjusting nut 21 is equipped on the outer wall surface of adjusting screw 20, and limit sliding sleeve 22 is installed on the lower wall surface of adjusting nut 21.

[0027] Please refer to Figure 4 The outer wall surface of the sub guide rod 5 is sleeved with a reset spring 23.

[0028] In this embodiment, the transmission wheel 15 is aligned with the tire longitudinal groove, then the telescopic rod 18 is elongated to drive the calibration sleeve 17 to rotate around the sub guide rod 5 to the horizontal direction of the tire, then the telescopic rod 18 is held to drive the calibration sleeve 17 to move forward along the sub guide rod 5, the position of the reference block 19 and the tire center is observed, then the adjusting nut 21 is rotated around the adjusting screw 20, the guide sleeve 4 is driven by the supporting spring 3 through the limiting sleeve 22 to move up and down along the guide rod 2 until the reference block 19 is flush with the tire center, and the height matching is completed.

[0029] Specifically, the operator lifts the vehicle to be tested and cleans the tire, then places the counterweight 1 in front of the wheel, aligns the transmission wheel 15 with the tire longitudinal groove, then elongates the telescopic rod 18 to drive the calibration sleeve 17 to rotate around the sub guide rod 5 to the horizontal direction of the tire, then holds the telescopic rod 18 to drive the calibration sleeve 17 to move forward along the sub guide rod 5, observes the position of the reference block 19 and the tire center, then rotates the adjusting nut 21 around the adjusting screw 20, the guide sleeve 4 is driven by the supporting spring 3 through the limiting sleeve 22 to move up and down along the guide rod 2 until the reference block 19 is flush with the tire center, and the height matching is completed, finally the counterweight 1 is moved to the tire longitudinal groove direction, the transmission wheel 15 is inserted into the tire longitudinal groove, when the transmission wheel 15 contacts the inside of the longitudinal groove, the position of the reference block 19 and the tire center is checked again, and the magnetostrictive sensor body 10 is zeroed after no error is found, ready to measure the tire longitudinal groove depth.

[0030] In this embodiment, the fixed frame 14 drives the inductive magnetic sleeve 13 to slide along the magnetostrictive sensor body 10, the magnetostrictive sensor body 10 starts to measure the tire groove depth when the two positioning wheels 11 contact the tread, the preliminary measurement is completed, the alarm sounds when the longitudinal groove depth is insufficient, and a prompt sound is sounded if it is qualified, then the longitudinal groove inner diameter roundness can be further measured, the error alarm value is reset in the control center, the tire is rotated for one revolution, and the alarm sounds again when the longitudinal groove roundness is insufficient, and a prompt sound is sounded if it is qualified.

[0031] Specifically, during measurement, the operator sets the error alarm value in the control center, then moves the counterweight 1 forward until the two positioning wheels 11 contact the tread, during which the inductive magnetic sleeve 13 is driven to slide along the magnetostrictive sensor body 10 by the detection fixed frame 14, and the magnetostrictive sensor body 10 starts to measure the tire groove depth, when the two positioning wheels 11 contact the tread, the preliminary measurement ends, when the longitudinal groove depth is insufficient, the alarm sounds, if it is qualified, a prompt sound will be sounded, then the longitudinal groove inner diameter roundness can be further measured, the error alarm value is reset in the control center, the tire is rotated for one revolution, when the longitudinal groove roundness is insufficient, the alarm sounds again, if it is qualified, a prompt sound will be sounded, through the secondary measurement, the longitudinal groove inner diameter roundness is avoided to be insufficient, and the longitudinal groove depth measurement accuracy is further improved.

[0032] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications are made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A high-precision magnetostrictive sensor for wheel detection, comprising a counterweight (1) and a guide rod (2), characterized in that, The guide rod (2) is installed on the upper wall of the counterweight (1), the outer wall of the guide rod (2) is sleeved with a supporting spring (3), the outer wall of the guide rod (2) is sleeved with a first guide structure, the outer wall of the first guide structure is connected with a second guide structure, the second guide structure is internally provided with a sensing structure, the outer wall of the sensing structure is sleeved with a detection structure, the outer wall of the first guide structure is provided with a calibration structure, and the outer wall of the guide rod (2) is sleeved with an adjusting structure. The first guide structure comprises a guide sliding sleeve (4), a secondary guide rod (5) and a limiting block (6). The guide sliding sleeve (4) is sleeved on the outer wall of the guide rod (2), the secondary guide rod (5) is installed on the outer wall of the guide sliding sleeve (4), and the limiting block (6) is installed on the outer end surface of the secondary guide rod (5).

2. The magnetostrictive sensor according to claim 1, wherein The second guide structure comprises an auxiliary fixing frame (7), two slide rails (8) and two auxiliary sliding sleeves (9). The auxiliary fixing frame (7) is installed on the outer wall of the guide sliding sleeve (4), the two slide rails (8) are respectively installed on the upper and lower walls of the auxiliary fixing frame (7), and the two auxiliary sliding sleeves (9) are respectively installed on the front wall of the auxiliary fixing frame (7).

3. The high-precision magnetostrictive sensor for detecting a wheel according to claim 2, wherein The sensing structure comprises a magnetostrictive sensor body (10), two positioning wheels (11) and two auxiliary springs (12). The magnetostrictive sensor body (10) is installed on the inner wall of the auxiliary fixing frame (7), the two positioning wheels (11) are respectively installed on the front wall of the auxiliary fixing frame (7), and the two auxiliary springs (12) are respectively sleeved on the outer walls of the two auxiliary sliding sleeves (9).

4. The magnetostrictive sensor according to claim 3, wherein The detection structure comprises an induction magnetic sleeve (13), a detection fixing frame (14), a transmission wheel (15) and two detection guide rods (16). The induction magnetic sleeve (13) is sleeved on the outer wall of the magnetostrictive sensor body (10), the detection fixing frame (14) is installed on the outer wall of the induction magnetic sleeve (13), the transmission wheel (15) is installed on the front wall of the detection fixing frame (14), and the two detection guide rods (16) are respectively installed on the upper and lower walls of the detection fixing frame (14) and connected with the two auxiliary sliding sleeves (9).

5. The magnetostrictive sensor according to claim 1, wherein The calibration structure comprises a calibration sleeve (17), an extension rod (18) and a reference block (19). The calibration sleeve (17) is sleeved on the outer wall of the secondary guide rod (5), the extension rod (18) is installed on the outer wall of the calibration sleeve (17), and the reference block (19) is installed on the front end surface of the extension rod (18).

6. The magnetostrictive sensor according to claim 1, wherein The adjusting structure comprises an adjusting screw rod (20), an adjusting nut (21) and a limiting sliding sleeve (22). The adjusting screw rod (20) is installed on the upper wall of the guide rod (2), the adjusting nut (21) is sleeved on the outer wall of the adjusting screw rod (20), and the limiting sliding sleeve (22) is installed on the lower wall of the adjusting nut (21).

7. The magnetostrictive sensor according to claim 1, wherein The outer wall of the secondary guide rod (5) is sleeved with a reset spring (23).

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