Device and method for measuring diameter of train wheel silencing groove

Abstract

The invention belongs to the technical field of train wheels, and relates to a train wheel noise reduction groove diameter measuring device. The invention further relates to a train wheel noise reduction groove diameter measuring method. Comprising a measuring device and a calibrating device, the measuring device comprises a fixed measuring claw (2) and a movable measuring claw (8), the fixed measuring claw (2) is movably sleeved with a fine tuning part (4), the movable measuring claw (8) and a reading vernier (7), and an adjusting spring (5) is connected between the fine tuning part (4) and the movable measuring claw (8). The train wheel silencing groove diameter measuring device is simple in structure, convenient to use, capable of being suitable for diameter measurement of various train wheel silencing grooves and high in universality, it is guaranteed that the measuring head and the silencing groove arc have enough contact faces, maximum point contact is guaranteed, and therefore high precision of silencing groove diameter measurement is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway wheels, and more specifically, relates to a railway wheel silencer groove diameter measuring device. The present invention also relates to a railway wheel silencer groove diameter measuring method. Background Art

[0002] Train wheels are important components for transmitting power and motion during train operation, and their processing accuracy is required to be high. Some wheels have a silencer groove structure, which is used in conjunction with a silencer ring to achieve a noise reduction effect. Conventional silencer groove measurements are specialized and cannot meet the measurement needs of most wheels. They cannot be self-positioned during the measurement process, and require high measurement personnel. There are measurement errors caused by the tilt of the measuring tool or the failure to find the maximum measurement point. Through three-coordinate fitting, the size can be accurately measured, but it takes a long time to measure a single wheel, resulting in low efficiency and failure to meet daily production needs. Because the currently used special wheel silencer groove measuring tool needs to be manually positioned to the maximum measurement point during use, it requires high skills for personnel, is prone to large measurement errors, and cannot adapt to silencer groove diameters of different heights and different arcs relative to the outer rim surface; using three coordinates for measurement is time-consuming and inefficient, and cannot meet the needs of daily production processes. Therefore, it is urgent to invent a silencer groove diameter measuring ruler with self-positioning and applicable to various diameters and different arcs for daily production and product quality inspection needs.

[0003] The prior art has a technology named "a wheel silencer ring welding device" and a publication (announcement) number "CN103357992B", which provides a wheel silencer ring welding device applied to the technical field of wheel production and processing equipment, wherein the welding device comprises a silencer ring clamping tool (1), a silencer ring welding component (2), the silencer ring clamping tool (1) comprises a base (3), a screw rod (4) movably connected to the base (3), a plurality of support rods (5) are arranged on the screw rod (4), and the base (3) is provided with a plurality of support rods (5). The seat (3) is configured to be mounted in a middle hole (9) of a wheel (16). When the base (3) is mounted in the middle hole (9), the plurality of support rods (5) are configured to be able to abut against the silencer groove (10). The silencer ring welding component (2) includes a welder (6), the welder (6) is connected to an argon gas bottle (7), and a welding gun (8) is connected to the welder (6). The device of the present invention has a simple structure and can conveniently and quickly complete the welding of the silencer ring into the silencer groove of the wheel while ensuring the welding quality. This technology does not involve the problems and solutions of the present application. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the shortcomings of the prior art, a high-precision train wheel silencer groove diameter measuring device is provided, which has a simple structure, is easy to use, can be applied to the diameter measurement of silencer grooves of various types of train wheels, has strong versatility, ensures that there is sufficient contact surface between the probe and the arc of the silencer groove, and ensures maximum point contact, thereby achieving silencer groove diameter measurement.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The invention discloses a device for measuring the diameter of a silencer groove of a railway wheel, comprising a measuring device and a calibration device. The measuring device comprises a fixed measuring claw and a movable measuring claw, a movable set fine-tuning component, a movable measuring claw and a reading cursor on the fixed measuring claw, and an adjusting spring connected between the fine-tuning component and the movable measuring claw.

[0007] The outer end of the fixed measuring claw is provided with a fixed measuring claw spherical probe, and the outer end of the movable measuring claw is provided with a movable measuring claw spherical probe. The diameter of the fixed measuring claw spherical probe is equal to the diameter of the movable measuring claw spherical probe, and the diameter of the fixed measuring claw spherical probe is smaller than the diameter of the silencer groove of the train wheel.

[0008] A recessed sound-absorbing groove is arranged along a circumference of the inner side surface of the rim of the railway wheel.

[0009] The calibration device comprises a calibration device base, a first calibration end side and a second calibration end side, wherein the first calibration end side and the second calibration end side are located at two ends of the device base, and the first calibration end side and the second calibration end side protrude from the calibration device base.

[0010] A first fastening screw is arranged on the fine adjustment component, and a second fastening screw is arranged on the reading cursor.

[0011] The fixed measuring claw spherical probe is screwed into the fixed measuring claw connecting screw hole at the outer end of the fixed measuring claw through the fixed measuring claw screw, and the fixed measuring claw positioning nut is screwed onto the fixed measuring claw screw.

[0012] The movable measuring claw spherical measuring head is screwed into the movable measuring claw screw hole at the outer end of the movable measuring claw through the movable measuring claw screw, and the movable measuring claw positioning nut is screwed onto the movable measuring claw screw.

[0013] The fixed measuring claw spherical probe and the movable measuring claw spherical probe are parallel to the fixed measuring claw body of the fixed measuring claw.

[0014] The fixed jaw lower part comprises a fixed jaw bottom surface, and the fixed jaw spherical probe is installed outside the fixed jaw bottom surface. The movable jaw lower part comprises a movable jaw bottom surface, and the movable jaw spherical probe is installed outside the movable jaw bottom surface.

[0015] The present invention also relates to a method for measuring the diameter of a silencer groove of a train wheel, which has simple steps, is easy to use, and can be applied to the measurement of the diameters of silencer grooves of various types of train wheels. It has strong versatility and ensures that there is sufficient contact surface between the probe and the arc of the silencer groove and that it is maximum point contact, thereby realizing the measurement of the diameter of the silencer groove and a measurement device for the diameter of a silencer groove of a train wheel.

[0016] The measuring steps of the measuring method of the railway wheel silencer groove diameter measuring device are as follows:

[0017] S1. Use the calibration device to calibrate the measuring device, fit the bottom surface of the fixed measuring claw of the fixed measuring claw and the bottom surface of the movable measuring claw of the movable measuring claw with the calibration reference surface of the calibration device base of the calibration device, move the movable measuring claw, fit the spherical probe of the fixed measuring claw of the fixed measuring claw with the first calibration end side, and fit the spherical probe of the movable measuring claw of the movable measuring claw with the second calibration end side, and the minimum value measured by the measuring device on the calibration device is the reference diameter D; adjust the fine-tuning component to squeeze the adjustment spring, and lock the first fastening screw;

[0018] S2. When measuring, first place the fixed measuring claw spherical probe on one side of the fixed measuring claw into the silencer groove of the train wheel, then move the movable measuring claw and place the movable measuring claw spherical probe of the movable measuring claw into the silencer groove of the train wheel;

[0019] S3. Adjust the fixed probe spherical probe and the movable probe spherical probe, the fixed probe claw spherical probe and the movable probe claw spherical probe are closely fitted with the silencer groove under the elastic force of the adjustment spring and are at the maximum diameter position;

[0020] S4. Tighten the second fastening screw and read the reading cursor. The value is the actual diameter D1 of the silencer groove of the measured train wheel.

[0021] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0022] The train wheel silencer groove diameter measuring device described in the present invention is manufactured into a measuring device and a calibration device respectively. The measuring device is used to measure the diameter of the silencer groove of the train wheel, and the calibration device is used to calibrate the measuring device before using it for a specific model of train wheel. The measuring device includes a fixed measuring claw and a movable measuring claw. The fixed measuring claw is movably equipped with a fine-tuning component, a movable measuring claw and a reading cursor. The movable measuring claw is movably equipped on the fixed measuring claw. The movable measuring claw can move relative to the fixed measuring claw. An adjusting spring is connected between the fine-tuning component and the movable measuring claw. The fine-tuning component can move relative to the fixed measuring claw. The adjusting spring connects the fine-tuning component and the movable measuring claw. A fixed measuring claw spherical probe is provided at the outer end of the fixed measuring claw, and a movable measuring claw spherical probe is provided at the outer end of the movable measuring claw. The diameter of the fixed measuring claw spherical probe is equal to the diameter of the movable measuring claw spherical probe, and the diameter of the fixed measuring claw spherical probe is smaller than the diameter of the silencer groove of the train wheel. Before measuring the silencer grooves of different diameters of different models of train wheels, different spherical probes are first installed at the ends of the fixed measuring jaws and the movable measuring jaws, so that it can be used to measure various types of train wheels with different silencer groove diameters. The diameter of the spherical probe is slightly smaller than the diameter of the arc of the measured silencer groove to ensure that there is enough contact surface between the probe and the arc of the silencer groove, and it can ensure maximum point contact. Before measurement, the measuring device needs to be calibrated by a calibration device (calibration block). During calibration, the bottom surface of the fixed measuring jaw and the bottom surface of the movable measuring jaw of the measuring device are respectively aligned with the calibration reference surface of the calibration device base of the calibration device, and the movable measuring jaw is slightly swung. The minimum value measured by the calibration device is the reference value (reference diameter) D, which is the standard value of the silencer groove of the corresponding train wheel. Adjust the fine-tuning component to squeeze the adjustment spring, tighten the first fastening screw, and complete the calibration of the silencer groove of a specific diameter. When measuring, first put the fixed measuring claw spherical probe on one side of the fixed measuring claw into the silencer groove of the wheel to be measured, then move the movable measuring claw, and put the movable measuring claw spherical probe of the movable measuring claw into the silencer groove of the wheel to be measured, and manually adjust the fixed measuring claw spherical probe and the movable measuring claw spherical probe so that the spherical probe is close to the maximum diameter position of the silencer groove. Under the action of the fine-tuning component, the adjustment spring is in a compressed state, so that the spherical probes on both sides are tightly fitted with the silencer groove under the elastic force of the adjustment spring and are at the maximum diameter. Then lock the second fastening screw on the reading cursor, fix the reading cursor, and read the value. The read value is the measured silencer groove diameter D1. The reference value D is used as the standard to determine whether the actual measured diameter value D1 is qualified. If it falls within the allowable standard range, it indicates that the diameter of the silencer groove of the train wheel meets the requirements. If it falls outside the allowable standard range, it indicates that the diameter of the silencer groove of the train wheel does not meet the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following is a brief description of the contents and symbols in the drawings of this specification:

[0024] Figure 1 It is a structural schematic diagram of the train wheel of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the train wheel silencer groove diameter measuring device of the present invention during calibration;

[0026] Figure 3 This is a schematic structural diagram of the train wheel silencer groove diameter measuring device of the present invention when performing measurement;

[0027] The markings in the attached drawings are: 1- fixed measuring claw spherical probe; 2- fixed measuring claw; 3- measuring device; 4- fine-tuning component; 5- adjusting spring; 6- first fastening screw; 7- reading cursor; 8- movable measuring claw; 9- train wheel (wheel to be measured); 10- calibration device; 11- silencer groove; 12- second fastening screw; 13- movable measuring claw spherical probe; 14- calibration device base; 15- first calibration end side; 16- second calibration end side; 17- fixed measuring claw body; 18- fixed measuring claw bottom surface; 19- movable measuring claw bottom surface; 20, movable measuring claw body. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0029] As attached Figure 1 -Attached Figure 3As shown, the present invention is a device for measuring the diameter of the silencer groove of a train wheel, including a measuring device and a calibration device. The measuring device includes a fixed measuring claw 2 and a movable measuring claw 8. The fixed measuring claw 2 is provided with a movable set fine-tuning component 4, a movable measuring claw 8 and a reading cursor 7. An adjusting spring 5 is connected between the fine-tuning component 4 and the movable measuring claw 8. A fixed measuring claw spherical probe 1 is provided at the outer end of the fixed measuring claw 2, and a movable measuring claw spherical probe 13 is provided at the outer end of the movable measuring claw 8. The diameter of the fixed measuring claw spherical probe 1 is equal to the diameter of the movable measuring claw spherical probe 13, and the diameter of the fixed measuring claw spherical probe 1 is smaller than the diameter of the silencer groove 11 of the train wheel 9. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When the structure is set, a measuring device and a calibration device are made separately. The measuring device is used to measure the diameter of the silencer groove of the train wheel, and the calibration device is used to calibrate the measuring device before using it for a specific model of train wheel. The measuring device comprises a fixed measuring claw 2 and a movable measuring claw 8, wherein the fixed measuring claw 2 is movably provided with a fine-tuning component 4, a movable measuring claw 8 and a reading cursor 7, wherein the movable measuring claw 8 is movably provided with the fixed measuring claw 2, wherein the movable measuring claw can move relative to the fixed measuring claw, wherein an adjusting spring 5 is connected between the fine-tuning component 4 and the movable measuring claw 8, wherein the fine-tuning component can move relative to the fixed measuring claw, and wherein the adjusting spring connects the fine-tuning component and the movable measuring claw. A fixed measuring claw spherical probe 1 is provided at the outer end of the fixed measuring claw 2, and a movable measuring claw spherical probe 13 is provided at the outer end of the movable measuring claw 8, wherein the diameter of the fixed measuring claw spherical probe 1 is equal to the diameter of the movable measuring claw spherical probe 13, and the diameter of the fixed measuring claw spherical probe 1 is smaller than the diameter of the muffler groove 11 of the train wheel 9. Before measuring the silencer grooves 11 of different diameters of different types of train wheels 9, different spherical probes are first installed at the ends of the fixed measuring claw 2 and the movable measuring claw 8, so that it can be applicable to the measurement of train wheels 9 of different silencer groove 11 diameters. The diameter of the spherical probe is slightly smaller than the diameter of the arc of the measured silencer groove 11 to ensure that there is enough contact surface between the probe and the arc of the silencer groove 11, and it can ensure maximum point contact. Before measurement, the measuring device 3 needs to be calibrated by the calibration device 10 (calibration gauge block). During calibration, the bottom surface of the fixed measuring claw 2 and the bottom surface of the movable measuring claw 8 of the measuring device 3 are respectively overlapped with the calibration reference surface of the calibration device base of the calibration device 10, and the movable measuring claw 8 is slightly swung. The minimum value measured by the calibration device 10 is the reference value (reference diameter) D, which is the standard value of the silencer groove 11 of the corresponding train wheel. Adjust the fine-tuning component 4 to squeeze the adjustment spring 5, and tighten the first fastening screw 6 to complete the calibration of the silencer groove of a specific diameter. During measurement, first place the fixed measuring claw spherical probe 1 on one side of the fixed measuring claw 2 into the silencer groove 11 of the wheel 9 to be measured, then move the movable measuring claw 8, and place the movable measuring claw spherical probe 13 of the movable measuring claw into the silencer groove 11 of the wheel 9 to be measured, and manually adjust the fixed measuring claw spherical probe 1 and the movable measuring claw spherical probe 13 so that the spherical probe is close to the maximum diameter position of the silencer groove 11.Under the action of the fine-tuning component 4, the adjustment spring 5 is in a compressed state, so that the spherical probes on both sides are tightly fitted with the silencer groove 11 respectively under the elastic force of the adjustment spring 5 and are at the maximum diameter. Then tighten the second fastening screw 12 on the reading cursor 7, fix the reading cursor 7, and read the value, and the read value is the measured silencer groove diameter D1. The reference value D is used as the standard to determine whether the measured actual diameter value D1 is qualified. If it falls within the allowable standard range, it indicates that the diameter of the silencer groove of the train wheel meets the requirements. If it falls outside the allowable standard range, it indicates that the diameter of the silencer groove 11 of the train wheel 9 does not meet the requirements. The train wheel silencer groove diameter measuring device described in the present invention has a simple structure and is easy to use. It can be used to measure the diameter of silencer grooves of various types of train wheels. It has strong versatility, ensures that the probe has sufficient contact surface with the silencer groove arc, and ensures maximum point contact, thereby achieving high precision in the measurement of the silencer groove diameter.

[0030] The inner side of the rim of the train wheel 9 is provided with a recessed silencer groove 11. In the above structure, the silencer groove is a structure recessed along the inner side of the rim of the train wheel 9, and the cross section of the silencer groove is an arc structure. Therefore, a probe with a spherical structure is used to measure the diameter.

[0031] The calibration device comprises a calibration device base 14, a first calibration end side 15 and a second calibration end side 16, wherein the first calibration end side 15 and the second calibration end side 16 are located at two ends of the device base 14, and the first calibration end side 15 and the second calibration end side 16 protrude from the calibration device base 14. The above structure requires calibration before using the measuring device for train wheels with different silencer groove diameters. During calibration, the fine-tuning component is fixed so that the adjustment spring is loaded under pressure. When measuring the silencer groove diameter of the corresponding train wheel, under the action of the adjustment spring 5, the probes of the fixed measuring claw 2 and the movable measuring claw 8 are at the maximum diameter position, which effectively ensures the measurement accuracy.

[0032] The first fastening screw 6 is provided on the fine-tuning component 4, and the second fastening screw 12 is provided on the reading cursor 7. In the above structure, when the first fastening screw 6 is loosened, the fine-tuning component can be moved relative to the fixed measuring claw, and after the first fastening screw 6 is tightened, the fine-tuning component 4 can be fixed on the fixed measuring claw 2, so that the measuring device can be reliably calibrated. When the second fastening screw 12 is loosened, the reading cursor 7 can be moved relative to the movable measuring claw 8, and after the second fastening screw 12 is tightened, the reading cursor 7 can be fixed on the movable measuring claw, so as to facilitate accurate reading.

[0033] The fixed claw spherical probe 1 is screwed into the fixed claw connecting screw hole at the outer end of the fixed claw 2 through the fixed claw screw, and the fixed claw positioning nut is screwed onto the fixed claw screw. The movable claw spherical probe 13 is screwed into the movable claw screw hole at the outer end of the movable claw 8 through the movable claw screw, and the movable claw positioning nut is screwed onto the movable claw screw. The above structure can replace the fixed claw spherical probe 1 and the movable claw spherical probe 13 with different diameters according to the requirements of different train wheels, so as to improve the versatility of the measuring device.

[0034] The fixed measuring claw spherical probe 1 and the movable measuring claw spherical probe 13 are parallel to the fixed measuring claw body 17 of the fixed measuring claw 2. With the above structure, when the diameter of the silencer groove is measured using the measuring device, the fixed measuring claw spherical probe 1 and the movable measuring claw spherical probe 13 can reliably contact the silencer groove, thereby increasing the contact surface between the two, achieving maximum diameter contact, and improving measurement accuracy.

[0035] The fixed jaw 2 comprises a bottom surface 18 of the fixed jaw, and the spherical probe 1 of the fixed jaw is installed outside the bottom surface 18 of the fixed jaw. The movable jaw 8 comprises a bottom surface 19 of the movable jaw, and the spherical probe 13 of the movable jaw is installed outside the bottom surface 19 of the movable jaw.

[0036] The present invention also relates to a method for measuring the diameter of a silencer groove of a train wheel, which has simple steps, is easy to use, and can be applied to the measurement of the diameters of silencer grooves of various types of train wheels. It has strong versatility and ensures that there is sufficient contact surface between the probe and the arc of the silencer groove and that it is maximum point contact, thereby realizing the measurement of the diameter of the silencer groove and a measurement device for the diameter of a silencer groove of a train wheel.

[0037] The measuring steps of the measuring method of the railway wheel silencer groove diameter measuring device are as follows:

[0038] S1. Before measuring the diameter of the silencer groove 11 of the train wheel 9, use the calibration device 10 to calibrate the measuring device 3, fit the bottom surface 17 of the fixed measuring claw 2 and the bottom surface 18 of the movable measuring claw 8 with the calibration reference surface of the calibration device base 14 of the calibration device 10, so that the measuring device is horizontally arranged on the calibration device, and move the movable measuring claw 8 outward relative to the fixed measuring claw so that the fixed measuring claw spherical probe 1 of the fixed measuring claw 2 fits the first calibration end side 15, and the movable measuring claw spherical probe 13 of the movable measuring claw 8 fits the second calibration end side 16. The minimum value measured by the measuring device 3 on the calibration device 10 is the corresponding silencer groove reference diameter D; adjust the fine-tuning component 4 to adjust the spring 5 Under the squeeze, lock the first fastening screw 6; S2. When measuring, first put the fixed measuring claw spherical probe 1 on one side of the fixed measuring claw 2 into the silencer groove 11 of the train wheel 9, then move the movable measuring claw 8, and put the movable measuring claw spherical probe 13 of the movable measuring claw 8 into the silencer groove 11 of the train wheel 9; S3. Adjust the fixed measuring head spherical probe 1 and the movable measuring head spherical probe 13, and the fixed measuring claw spherical probe 1 and the movable measuring claw spherical probe 13 are tightly fitted with the silencer groove 11 respectively under the elastic force of the adjustment spring 5, and are at the maximum diameter position; S4. Lock the second fastening screw 12, read the reading cursor 7, and the value is the actual diameter D1 of the silencer groove 11 of the measured train wheel 9.

[0039] The train wheel silencer groove diameter measuring device of the present invention is structured to separately manufacture a measuring device and a calibration device. The measuring device is used to measure the diameter of the silencer groove of the train wheel, and the calibration device is used to calibrate the measuring device before using it for a specific model of train wheel. The measuring device comprises a fixed measuring claw 2 and a movable measuring claw 8. The fixed measuring claw 2 is movably equipped with a fine-tuning component 4, a movable measuring claw 8 and a reading cursor 7. The movable measuring claw 8 is movably equipped with the fixed measuring claw 2. The movable measuring claw can move relative to the fixed measuring claw. An adjustment spring 5 is connected between the fine-tuning component 4 and the movable measuring claw 8. The fine-tuning component can move relative to the fixed measuring claw. The adjustment spring connects the fine-tuning component and the movable measuring claw. A fixed measuring claw spherical probe 1 is provided at the outer end of the fixed measuring claw 2, and a movable measuring claw spherical probe 13 is provided at the outer end of the movable measuring claw 8. The diameter of the fixed measuring claw spherical probe 1 is equal to the diameter of the movable measuring claw spherical probe 13, and the diameter of the fixed measuring claw spherical probe 1 is smaller than the diameter of the silencer groove 11 of the train wheel 9. Before measuring the silencer grooves 11 of different diameters of different types of train wheels 9, different spherical probes are first installed at the ends of the fixed measuring claw 2 and the movable measuring claw 8, so that it can be applicable to the measurement of train wheels 9 of different silencer groove 11 diameters. The diameter of the spherical probe is slightly smaller than the diameter of the arc of the measured silencer groove 11 to ensure that there is enough contact surface between the probe and the arc of the silencer groove 11, and it can ensure maximum point contact. Before measurement, the measuring device 3 needs to be calibrated by the calibration device 10 (calibration gauge block). During calibration, the bottom surface of the fixed measuring claw 2 and the bottom surface of the movable measuring claw 8 of the measuring device 3 are respectively overlapped with the calibration reference surface of the calibration device base of the calibration device 10, and the movable measuring claw 8 is slightly swung. The minimum value measured by the calibration device 10 is the reference value (reference diameter) D, which is the standard value of the silencer groove 11 of the corresponding train wheel. Adjust the fine-tuning component 4 to squeeze the adjustment spring 5, and tighten the first fastening screw 6 to complete the calibration of the silencer groove of a specific diameter. During measurement, first place the fixed measuring claw spherical probe 1 on one side of the fixed measuring claw 2 into the silencer groove 11 of the wheel 9 to be measured, then move the movable measuring claw 8, and place the movable measuring claw spherical probe 13 of the movable measuring claw into the silencer groove 11 of the wheel 9 to be measured, and manually adjust the fixed measuring claw spherical probe 1 and the movable measuring claw spherical probe 13 so that the spherical probes are close to the maximum diameter position of the silencer groove 11. Under the action of the fine-tuning component 4, the adjustment spring 5 is in a compressed state, so that the spherical probes on both sides are tightly fitted with the silencer groove 11 under the elastic force of the adjustment spring 5 and are at the maximum diameter. Then tighten the second fastening screw 12 on the reading cursor 7, fix the reading cursor 7, and read the value, and the read value is the measured silencer groove diameter D1. The reference value D is used as the standard to determine whether the actual measured diameter value D1 is qualified. If it falls within the allowable standard range, it means that the diameter of the silencer groove of the train wheel meets the requirements. If it falls outside the allowable standard range, it means that the diameter of the silencer groove 11 of the train wheel 9 does not meet the requirements. The measurement is convenient and the measurement accuracy is guaranteed.

[0040] The present invention is described exemplarily above in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A device for measuring the diameter of a train wheel silencer groove, characterized in that: The invention comprises a measuring device and a calibration device. The measuring device comprises a fixed measuring jaw (2) and a movable measuring jaw (8). A fine adjustment component (4), a movable measuring jaw (8) and a reading cursor (7) are movably mounted on the fixed measuring jaw (2). An adjusting spring (5) is connected between the fine adjustment component (4) and the movable measuring jaw (8).

2. The railway wheel silencer groove diameter measuring device according to claim 1 is characterized in that: A fixed measuring claw spherical probe (1) is arranged at the outer end of the fixed measuring claw (2), and a movable measuring claw spherical probe (13) is arranged at the outer end of the movable measuring claw (8). The diameter of the fixed measuring claw spherical probe (1) is equal to the diameter of the movable measuring claw spherical probe (13), and the diameter of the fixed measuring claw spherical probe (1) is smaller than the diameter of the silencer groove (11) of the train wheel (9).

3. The railway wheel silencer groove diameter measuring device according to claim 1 or 2, characterized in that: A recessed sound-absorbing groove (11) is arranged along a circumference of the inner side surface of the rim of the train wheel (9).

4. The railway wheel silencer groove diameter measuring device according to claim 1 or 2, characterized in that: The calibration device comprises a calibration device base (14), a first calibration end side (15) and a second calibration end side (16), wherein the first calibration end side (15) and the second calibration end side (16) are located at two ends of the device base (14), and the first calibration end side (15) and the second calibration end side (16) protrude from the calibration device base (14).

5. The railway wheel silencer groove diameter measuring device according to claim 1 or 2, characterized in that: A first fastening screw (6) is arranged on the fine adjustment component (4), and a second fastening screw (12) is arranged on the reading cursor (7).

6. The railway wheel silencer groove diameter measuring device according to claim 2, characterized in that: The fixed measuring claw spherical probe (1) is screwed into the fixed measuring claw connecting screw hole at the outer end of the fixed measuring claw (2) through the fixed measuring claw screw, and the fixed measuring claw positioning nut is screwed onto the fixed measuring claw screw.

7. The railway wheel silencer groove diameter measuring device according to claim 6, characterized in that: The movable measuring claw spherical probe (13) is screwed into the movable measuring claw screw hole at the outer end of the movable measuring claw (8) through the movable measuring claw screw, and the movable measuring claw positioning nut is screwed onto the movable measuring claw screw.

8. The railway wheel silencer groove diameter measuring device according to claim 7, characterized in that: The fixed measuring claw spherical probe (1) and the movable measuring claw spherical probe (13) are parallel to the fixed measuring claw body (17) of the fixed measuring claw (2).

9. The railway wheel silencer groove diameter measuring device according to claim 2, characterized in that: The lower part of the fixed measuring claw (2) comprises a fixed measuring claw bottom surface (18), the fixed measuring claw spherical measuring head (1) is installed at an outer position of the fixed measuring claw bottom surface (18), and the lower part of the movable measuring claw (8) comprises a movable measuring claw bottom surface (19), the movable measuring claw spherical measuring head (13) is installed at an outer position of the movable measuring claw bottom surface (19).

10. The measuring method of the railway wheel silencer groove diameter measuring device according to any one of claims 1 to 9, characterized in that: The measuring steps of the measuring method of the railway wheel silencer groove diameter measuring device are as follows: S1. Use the calibration device (10) to calibrate the measuring device (3), fit the bottom surface (17) of the fixed measuring claw (2) and the bottom surface (18) of the movable measuring claw (8) to the calibration reference surface of the calibration device base (14) of the calibration device (10), move the movable measuring claw (8), fit the fixed measuring claw spherical probe (1) of the fixed measuring claw (2) to the first calibration end side (15), and fit the movable measuring claw spherical probe (13) of the movable measuring claw (8) to the second calibration end side (16), and the minimum value measured by the measuring device (3) on the calibration device is the reference diameter D; adjust the fine-tuning component (4) to squeeze the adjustment spring (5), and tighten the first fastening screw (6); S2. When measuring, first place the fixed measuring claw (2) on one side of the fixed measuring claw spherical probe (1) into the silencer groove (11) of the train wheel (9), then move the movable measuring claw (8), and place the movable measuring claw spherical probe (13) of the movable measuring claw (8) into the silencer groove (11) of the train wheel (9); S3. Adjust the fixed probe spherical probe (1) and the movable probe spherical probe (13), the fixed probe claw spherical probe (1) and the movable probe claw spherical probe (13) are closely fitted with the silencer groove (11) under the elastic force of the adjustment spring (5) and are at the maximum diameter position; S4. Tighten the second fastening screw (12) and read the reading cursor (7). The reading value is the actual diameter D1 of the muffler groove (11) of the train wheel (9) being measured.

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