CN215092447U - Full-size contact type automatic contour measuring device of non-falling wheel lathe - Google Patents
Full-size contact type automatic contour measuring device of non-falling wheel lathe Download PDFInfo
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- CN215092447U CN215092447U CN202121641795.6U CN202121641795U CN215092447U CN 215092447 U CN215092447 U CN 215092447U CN 202121641795 U CN202121641795 U CN 202121641795U CN 215092447 U CN215092447 U CN 215092447U
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Abstract
The utility model discloses a full-size contact type automatic contour measuring device of a wheel-free lathe, which comprises a swing frame 2 and a measuring device 3 which are arranged symmetrically left and right; the swing frame 2 comprises two driving wheels 201 and a driving motor 202, the driving motor 202 is respectively connected with the two driving wheels 201 through a synchronous belt, the driving motor 202 drives the two driving wheels 201 to rotate, and a rotating speed sensor 203 is arranged between the two driving wheels 201 and faces the outer side face of the wheel pair 1; the measuring device 3 comprises a measuring head, an axial position sensor 305, a radial position sensor 306 and a cylinder 307; a spring 304 is arranged in the measuring head and is connected with a piston body of an oil cylinder 307 through the spring 304; the measuring device 3 is connected to the nut seat of the screw rod 5, and the screw rod 5 is connected with the output shaft of the motor 4. The utility model discloses bright measuring parameter is comprehensive, and degree of automation is high, is showing and has promoted the measuring wheel pair tread full-scale measuring efficiency of not falling wheel.
Description
Technical Field
The utility model belongs to vehicle wheel pair processingequipment field, concretely relates to full-scale contact profile automatic measuring device of wheel lathe does not fall.
Background
In order to improve the operation efficiency of the high-speed rail motor car, after the wheels are worn, the wheel set tread contour of the high-speed rail motor car is trimmed to reach the standard tread shape by the non-falling wheel lathe, so that the high-speed rail motor car can normally run. Before the wheel set of the high-speed rail car wheel finishes the tread profile, the wheel set needs to measure the tread profile, machining is guided according to the measuring result, the machining amount of the wheel set to the tread is reduced as much as possible, and the purpose of economic turning is achieved. After the high-speed rail motor car wheel pair tread profile is trimmed, the tread profile is measured through the pair wheels, whether a machining result is in accordance with expectation or not can be effectively verified, whether relevant standards are met or not can be effectively verified, machining accuracy of the high-speed rail wheel pair is effectively guaranteed, and running safety of a high-speed rail is guaranteed.
In the prior art, most of the measurement can not be automatically carried out, but measurement tools such as a wheel-shaped sample plate, a wheel diameter ruler and the like are manually used for measurement; or part of lathes are provided with measuring devices, but the measuring items are not comprehensive enough, only data such as rim thickness, inner side distance, rolling circle diameter and the like are included, and the measuring precision cannot meet the requirements of TJ/CL458-2016 technical conditions for temporary running of motor train unit wheel-free lathes.
According to the requirements of TJ/CL458-2016 (temporary technical conditions for preventing motor train unit from falling off the wheel lathe), the full-size measurement refers to specified measurement or calculation parameters for evaluating the technical state of the wheel set, and comprises the following steps: wheel diameter, inside distance, tread contour, radial run-out function, axial play, rim thickness, rim height, QR value, equivalent taper, tread run-out, wheel polygon and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a full-scale contact profile automatic measuring device of wheel lathe does not fall solves and to accurate measurement of full-scale and the operation economy in wheel before the wheel processing of not falling and repair the problem of processing parameter to turning a round.
The utility model provides a technical scheme is: a full-size contact type automatic contour measuring device of a non-falling wheel lathe comprises a swing frame 2 and a measuring device 3 which are arranged in bilateral symmetry;
the swing frame 2 comprises two driving wheels 201 and a driving motor 202, the driving motor 202 is respectively connected with the two driving wheels 201 through a synchronous belt, the driving motor 202 drives the two driving wheels 201 to rotate, and a rotating speed sensor 203 is arranged between the two driving wheels 201 and faces the outer side face of the wheel pair 1;
the driving wheel 201 abuts against the wheel pair 1 and drives the wheel pair 1 to continuously and stably rotate, and profile parameter measurement is performed by the measuring device 3.
Further, the measuring device 3 includes a measuring head, an axial position sensor 305, a radial position sensor 306, and a cylinder 307; a spring 304 is arranged in the measuring head and is connected with a piston body of an oil cylinder 307 through the spring 304; the measuring device 3 is connected to the nut seat of the screw rod 5, and the screw rod 5 is connected with the output shaft of the motor 4.
Further, the measuring head further comprises a tread surface measuring wheel 301, an inner side surface measuring wheel 302 and a rotation angle sensor.
Compared with the prior art, the utility model discloses possess following beneficial effect:
the utility model discloses the measured parameter is comprehensive, include: wheel diameter, inside distance, tread contour, radial run-out function, axial play, rim thickness, rim height, QR value, equivalent taper, tread run-out, wheel polygon and the like.
The measuring process is full-automatic, the measuring efficiency and the measuring precision are better, and according to the data base, machining data for economic turning are obtained through specific algorithm model operation to guide wheel pair machining.
The utility model discloses showing and promoting not falling wheel and measuring the wheel pair tread full size measuring efficiency for its measuring time <3 minutes.
The precision of full-size measurement of the wheel set for measuring wheel tread without wheel drop is improved, and the requirement of TJ/CL458-2016 is met: the equivalent taper (relative to an equivalent taper standard wheel) is less than or equal to 5 percent; the diameter jump measurement precision is less than or equal to 0.05 mm; the wheel diameter measurement precision is less than or equal to 0.1 mm; the inner side distance measurement precision is less than or equal to 0.2 mm; the end face bounce amount measurement precision is less than or equal to 0.05 mm; polygonal wheel: the peak orders of the high-order polygon and the low-order polygon are consistent.
Drawings
FIG. 1 is a schematic view of a full-scale contact type automatic contour measuring device of a wheel lathe of the present invention;
fig. 2 is a schematic view of the swing frame 2 of the present invention;
fig. 3 is a schematic view of the measuring device 3 of the present invention;
fig. 4 is the measurement flow chart of the full-size contact type automatic contour measuring device of the wheel lathe.
Reference numerals: 1. a wheel set; 101. an inner side surface; 102. a rim; 2. placing a frame; 201. a drive wheel; 202. a drive motor; 203. a rotational speed sensor; 3. a measuring device; 301. a tread measuring wheel; 302. an inner side surface measuring wheel; 303. a rotation angle sensor; 304. a connecting spring; 305. an axial position sensor; 306. a radial position sensor; 307. an oil cylinder; 4. a motor; 5. and a screw rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Referring to fig. 1-3, the technical solution of the present invention is: a full-size contact type automatic contour measuring device of a non-falling wheel lathe comprises a swing frame 2 and a measuring device 3 which are arranged in bilateral symmetry;
the swing frame 2 comprises two driving wheels 201 and a driving motor 202, the driving motor 202 is respectively connected with the two driving wheels 201 through a synchronous belt, the driving motor 202 drives the two driving wheels 201 to rotate, and a rotating speed sensor 203 is arranged between the two driving wheels 201 and faces the outer side face of the wheel pair 1;
the driving wheel 201 abuts against the wheel pair 1 and drives the wheel pair 1 to continuously and stably rotate, and profile parameter measurement is performed by the measuring device 3.
Preferably, the measuring device 3 comprises a measuring head, an axial position sensor 305, a radial position sensor 306 and a cylinder 307; a spring 304 is arranged in the measuring head and is connected with a piston body of an oil cylinder 307 through the spring 304; the measuring device 3 is connected to the nut seat of the screw rod 5, and the screw rod 5 is connected with the output shaft of the motor 4.
Preferably, the measuring head also comprises a tread surface measuring wheel 301, an inner side surface measuring wheel 302 and a rotation angle sensor.
After the tread surface measuring wheel 301 and the inner side surface measuring wheel 302 extend out, the tread surface measuring wheel and the inner side surface measuring wheel move left and right within a small range, and the moving distance is fed back to a control system through an axial position sensor 305. The extension of the cylinder 307 is fed back to the control system via the radial position sensor 306. The turning angle of the measuring wheel 301 is fed back to the control system via a rotation angle sensor 303.
The measuring process of the full-size contact type contour automatic measuring device of the wheel-free lathe comprises the following steps: the left side and the right side synchronously carry out the following steps:
s1 wheel-to-inner side measurement: the driving wheel 201 abuts against the wheel pair 1, and the driving motor 202 drives the driving wheel 201 to rotate at a set linear speed all the time, so as to drive the wheel pair 1 to continuously and stably rotate until the whole measuring process is finished. The motor 4 rotates to drive the screw rod 5 to rotate, the measuring device 3 is driven to move to the inner side face measuring wheel 302 within the inner side face 102, the oil cylinder 307 extends out, the motor 4 rotates reversely to drive the screw rod 5 to rotate to drive the measuring device 3 to slowly move to the designated position Z1, the inner side face measuring wheel 302 contacts the inner side face 102 in the process, the spring 304 is compressed, and the axial position sensor 305 feeds back the compressed distance. The distance W1 fed back by the current axial position sensor 303 is recorded. The motor 4 rotates to drive the screw rod 5 to rotate, the measuring wheel 301 is driven to leave the inner side surface 102, and the oil cylinder 307 retracts.
S2 wheel set rolling circle diameter measurement: calculating to obtain the coordinate position Z of the inner side surface of the wheel set:
Z= Z1- W1
z1: the designated position where the motor 4 moves; w1: the inboard side measuring wheel 302 compression distance;
and (4) calculating to obtain the coordinate position of the inner side surface of the wheel set, and calculating to obtain the coordinate position of the rolling circle of the wheel set on the basis of the coordinate position. Calculating the coordinate position Zg, Zg = Z + W2-W3 of the rolling circle of the wheel pair
Z: coordinate positions of the inner side faces of the wheel sets; w2: the axial distance between the inner side surface and the rolling circle is generally a fixed value of 70 mm; w3: the distance between the tread measuring wheel 301 and the inner side surface measuring wheel 302;
the motor 4 rotates to drive the screw rod 5 to rotate, the measuring device 3 is driven to move to the position, below the coordinate position point of the wheel set rolling circle, of the tread measuring wheel 301, the oil cylinder 307 extends out, and the tread measuring wheel 301 is in contact with the wheel set rolling circle and rotates with the wheel set 1 at the synchronous linear speed. And recording the rolling angle of the tread measuring wheel 301 until the wheel pair 1 rolls for n circles. Calculating to obtain the diameter of the rolling circle of the wheel pair;
calculating the diameter phi of the rolling circle
r: the radius of the tread measurement wheel 301; ω: the rolling angle of the tread measuring wheel 301; n: the number of rolling circles of the wheel set 1 is equal to the number of rolling circles of the wheel set; and pi is the circumferential rate.
Polygonal measurement by an S3 wheel set: s2 after the diameter of the wheel set rolling circle is measured, the tread measuring wheel 301 is in contact with the wheel set 1 rolling circle and rotates, the extending distance of the tread measuring wheel 301 changes according to the jumping change of the rolling circle, and the polygon condition of the wheel set is calculated through the position change fed back by the position sensor 306 and the diameter of the wheel set rolling circle. The oil cylinder 307 retracts, and the wheel set polygon measurement is completed.
S4 wheel profile scan: the axial coordinate position of the high point of the wheel rim is obtained through calculation, the motor 4 rotates to drive the screw rod 5 to rotate, the measuring device 3 is driven to move to the position below the highest point of the wheel rim 102 of the tread measuring wheel 301, the oil cylinder 307 extends out to contact the high point of the wheel rim 102, and the oil cylinder 307 continuously applies extending pressure. The motor 4 rotates to drive the screw rod 5 to rotate, the measuring device 3 is driven to move, the tread measuring wheel 301 is driven to move towards the outer side face of the wheel pair, in the process, the extending amount of the tread measuring wheel 301 can change along with the change of the shape of the tread of the wheel pair, and the shape of the tread of the wheel pair is described by collecting the variable quantity of the shape of the tread and the coordinate value fed back by the motor 4. The wheel sets tread scanning is completed and the cylinder 307 is retracted.
The S5 model calculates: calculating various size parameters of the wheel set according to the data obtained in the steps and the wheel set type selected by the user, wherein the parameters comprise: the wheel comprises wheel diameter, inner side distance, tread contour, radial run-out function, axial float, rim thickness, rim height, QR value, equivalent taper, tread radial run-out, wheel polygon and the like, and economic turning machining parameters are given through a special model algorithm on the basis of the data.
Claims (3)
1. Full-size contact profile automatic measuring device of wheel lathe does not fall, its characterized in that: comprises a swing frame (2) and a measuring device (3) which are arranged symmetrically left and right;
the swing frame (2) comprises two driving wheels (201) and a driving motor (202), the driving motor (202) is respectively connected with the two driving wheels (201) through a synchronous belt, the driving motor (202) drives the two driving wheels (201) to rotate, and a rotating speed sensor (203) is arranged between the two driving wheels (201) and faces the outer side face of the wheel pair (1);
the driving wheel (201) abuts against the wheel pair (1) and drives the wheel pair (1) to continuously and stably rotate, and the measuring device (3) is used for measuring profile parameters.
2. The full-size contact type automatic contour measuring device for the wheel lathe of claim 1, wherein: the measuring device (3) comprises a measuring head, an axial position sensor (305), a radial position sensor (306) and a cylinder (307); a spring (304) is arranged in the measuring head and is connected with a piston body of an oil cylinder (307) through the spring (304); the measuring device (3) is connected to the screw rod (5), and the screw rod (5) is connected with the output shaft of the motor (4).
3. The full-size contact type automatic contour measuring device for the wheel lathe of claim 2, wherein: the measuring head further comprises a tread measuring wheel (301), an inner side surface measuring wheel (302) and a rotation angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121641795.6U CN215092447U (en) | 2021-07-19 | 2021-07-19 | Full-size contact type automatic contour measuring device of non-falling wheel lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121641795.6U CN215092447U (en) | 2021-07-19 | 2021-07-19 | Full-size contact type automatic contour measuring device of non-falling wheel lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215092447U true CN215092447U (en) | 2021-12-10 |
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ID=79321759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121641795.6U Active CN215092447U (en) | 2021-07-19 | 2021-07-19 | Full-size contact type automatic contour measuring device of non-falling wheel lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215092447U (en) |
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2021
- 2021-07-19 CN CN202121641795.6U patent/CN215092447U/en active Active
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