CN113118699B - Track wheel and bogie wheel repairing equipment and method for high-speed rail bearing comprehensive test bed - Google Patents
Track wheel and bogie wheel repairing equipment and method for high-speed rail bearing comprehensive test bed Download PDFInfo
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- CN113118699B CN113118699B CN202110540256.1A CN202110540256A CN113118699B CN 113118699 B CN113118699 B CN 113118699B CN 202110540256 A CN202110540256 A CN 202110540256A CN 113118699 B CN113118699 B CN 113118699B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
Abstract
The invention provides a track wheel and bogie wheel repairing device of a high-speed rail bearing comprehensive test bed, which comprises: the device comprises a vehicle body, a positioning assembly, a bogie, a rail wheel system correspondingly arranged right below the bogie, and a turning system for sequentially carrying out clearance adjustment on the corresponding wheel pair on the bogie and the rail wheel on the rail wheel system and respectively repairing the wheel pair and the rail wheel; turning is carried out by taking the wheel shaft and the rail wheel shaft as rotating bodies, and centering turning is adopted, so that the technical problem that the centers of the wheel set or the rail wheel cannot be determined in a non-wheel turning mode in the prior art is solved; the turning component arranged on the frame is used for turning the wheel set or the rail wheel, the structure is compact, the processing precision is high, and the wheel set and the rail wheel can be synchronously turned at the same time, so that a group of rail wheels and the wheel set with similar wear degree can be synchronously turned, the stability of the turning process is ensured, and the turning precision is further improved.
Description
Technical Field
The invention relates to the technical field of rail vehicle maintenance, in particular to a device and a method for repairing rail wheels and bogie wheels of a high-speed rail bearing comprehensive test bed.
Background
After the existing rolling test bed for rolling locomotives works for a long time, the tread of a rail wheel is worn, and the tread of the rail wheel needs to be repaired to a certain extent so as to recover the original tread shape curve.
In the prior art, the vehicle repair is carried out by adopting a mode of disassembling the rail wheels and the wheel sets, and the defects of reinstallation, complex process path, difficulty in disassembly, long maintenance time, high cost and the like exist after the repair is finished.
Chinese patent CN 111318724A discloses a wheel turning device and a method thereof. The wheel turning device comprises a tool rest, a driving wheel, a driving mechanism, a control mechanism, a non-roundness measuring mechanism and a signal conversion mechanism; the out-of-roundness measuring mechanism is used for measuring out-of-roundness data of the wheel tread; the signal conversion mechanism converts the received out-of-roundness data into fine adjustment data; the control mechanism carries out coupling fine adjustment on the feed amount of the cutter according to the received fine adjustment data, and/or controls the driving mechanism to drive the driving wheel to move, so that the distance between the cutter and the axis of the wheel is kept constant. The wheel turning device offsets machining errors caused by wheel out-of-roundness and tread positioning by adjusting the feed amount of the tool and/or the displacement of the driving wheel, thereby reducing out-of-roundness deviation of the wheel and improving the wheel turning precision.
However, in the technical scheme, the wheel-drop-free principle is adopted for repairing, the two supporting wheels and the wheel pair are intersected to form a centerless repairing mode, the repairing precision of the mode is poor, the running requirement and the test requirement of the existing high-speed railway cannot be met, only one wheel or one group of wheel pairs can be repaired, and on-line turning repair cannot be realized.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the track wheel and bogie wheel repairing equipment of the high-speed rail bearing comprehensive test bed, the wheel set shaft and the track wheel shaft are used as rotating bodies for turning, and the centering turning is adopted, so that the technical problem that the centers of the wheel set or the track wheel cannot be determined in the turning mode without dropping the wheel in the prior art is solved; the wheel set or the rail wheel is turned on line by using the turning assembly arranged on the frame, the structure is compact, the processing precision is high, and the wheel set and the rail wheel can be synchronously turned at the same time, so that a group of rail wheels and the wheel set with similar wear degree can be synchronously turned, the stability of the turning process is ensured, and the turning precision is further improved;
in order to achieve the purpose, the invention provides the following technical scheme:
track wheel and bogie wheel repair equipment of high-speed railway bearing integrated test platform includes: the device comprises a vehicle body, positioning assemblies arranged on two sides of the vehicle body, and a plurality of groups of bogies linearly arranged below the vehicle body, and is characterized by further comprising rail wheel systems correspondingly arranged right below the bogies; the rail wheel system comprises two groups of rail wheel assemblies which are linearly arranged; the rail wheel assembly comprises two rail wheel units which are arranged in a bilateral symmetry manner;
and the track wheel units are respectively provided with a turning system which is used for performing clearance adjustment on the corresponding wheel pair on the bogie and the track wheel on the track wheel system and respectively performing repair processing on the wheel pair and the track wheel.
As an improvement, the wheel pair and the axis of the corresponding track wheel are positioned in the same vertical plane, and the two wheels are in friction transmission.
As an improvement, the turning system comprises a mounting frame mounted on the rail wheel unit, two groups of turning units respectively arranged on two sides of the mounting frame and an axial positioning unit;
the axial positioning unit is positioned between the two groups of turning units and arranged above the mounting frame;
the axial positioning unit is arranged between the wheel pair and the corresponding track wheel.
As an improvement, the turning unit comprises an X-axis moving assembly mounted on the mounting frame, a Y-axis moving assembly slidably disposed on the X-axis moving assembly, and a tool rest disposed on the Y-axis moving assembly.
As an improvement, the tool holders of one set of the turning units are arranged towards the wheel pair, and the tool holders of the other set of the turning units are arranged towards the rail wheel.
As the improvement, the axial positioning unit includes the adjustment seat of being connected, drive with the mounting bracket rotation the rotatory power portion of adjustment seat, locate the drive division of adjustment seat one end and be connected and slide the pinch roller seat of locating the adjustment seat other end with the output of drive division, it is equipped with the pinch roller to rotate on the pinch roller seat.
As an improvement, the driving part comprises an air nozzle communicated with one end of the adjusting seat and connected with an external air source, a piston arranged in the adjusting seat in a sliding mode, an output end of the piston is connected with the pressing wheel seat, and a spring sleeved on the piston rod in the direction away from the air nozzle.
As an improvement, the driving part and the pinch roller seat are eccentrically arranged on the adjusting seat.
As an improvement, the turning unit further comprises a detection assembly arranged on the tool rest and used for detecting the size of the part to be repaired.
In addition, in order to achieve the above object, the present invention further provides a method for simultaneously repairing a rail wheel and a wheel pair by using the rail wheel and bogie wheel repairing apparatus of the high-speed rail bearing comprehensive test stand in the above technical solution, comprising the steps of:
the method comprises the following steps that firstly, a wheel pair system is positioned, a bogie is transferred to the upper side of a track wheel system, and the axis of the bogie and the axis of the track wheel system are positioned in the same vertical plane through adjusting a positioning assembly;
secondly, pre-tightening the wheel set and the track wheel, adjusting an axial positioning unit at one side of the track wheel assembly to enable an eccentrically arranged pressing wheel to rotate upwards to enable the pressing wheel to be in contact with the wheel set a, driving the pressing wheel to advance by using a driving part and tightly press the edge of the wheel set a until the clearance of a wheel set bearing on the shaft of the wheel set a meets the process requirement in the rotating process of the wheel set a, and keeping a certain pressing force to finish pre-tightening of the wheel set a; adjusting an axial positioning unit at the other side of the track wheel assembly to enable an eccentrically arranged pressing wheel to rotate downwards to enable the pressing wheel to be in contact with the track wheel, driving the pressing wheel to advance by using a driving part and tightly press the edge of the track wheel until the bearing clearance on the track wheel shaft meets the process requirement in the rotating process of the track wheel, and maintaining a certain pressing force to finish pre-tightening of the track wheel;
step three, measuring the rail wheels, wherein the multiple groups of detection assemblies synchronously measure the sizes of the rail wheels to be repaired, the data are summarized, and a computer analyzes and formulates the repairing process of the multiple groups of rail wheels so that the sizes of the repaired multiple groups of rail wheels are kept consistent;
step four, wheel set measurement, wherein a plurality of groups of detection assemblies synchronously measure the sizes of wheel sets to be repaired, data are summarized, and a computer analyzes and formulates the repair process of the plurality of groups of wheel sets, so that the sizes of the plurality of groups of repaired wheel sets are kept consistent;
turning, namely driving the wheel pair assemblies or the track wheel assemblies to rotate, and controlling the two sets of turning units to respectively turn the treads of the track wheels and the wheel pairs to the process size;
and step six, detecting, namely, rechecking the track wheels and the wheel sets which are subjected to the turning repair by the detection assembly, and ensuring that the sizes of a group of wheel sets repaired at the same time are the same and the sizes of a group of track wheels are the same.
The invention has the beneficial effects that:
(1) the wheel pair and the roller wheels arranged on the wheel pair shaft and the rail wheel shaft are turned by taking the wheel pair shaft and the rail wheel shaft as the centers of the rotating bodies, the rail wheel system arranged on the wheel pair system is matched with the positioning of the positioning assembly, so that the wheel pair system is positioned right above the rail wheel system, the axes of the corresponding wheel pair and the rail wheel are positioned in the same vertical plane, the wheel pair and the rail wheel are in mutual friction transmission, the centering turning is realized, and the technical problem that the centers of the wheel pair or the rail wheel cannot be determined in the non-wheel turning mode in the prior art is solved;
(2) the turning component arranged on the frame is used for turning the wheel set or the track wheel, the structure is compact, the processing precision is high, and the wheel set and the track wheel can be synchronously turned at the same time, so that a group of track wheels and wheel sets with similar wear degree can be synchronously turned, the stability of the turning process is ensured, the turning precision is improved, and the turning efficiency is improved;
(3) according to the invention, the turning component and the turned object are used as an integrated design principle, so that the precision of position positioning and displacement between the tool tip of the turning tool and the turned point is not influenced by the displacement of the guide wheel generated due to the action of external force, and is also not influenced by the displacement of the turning component generated due to the action of external force, the high rigidity of the whole turning system is ensured, and the high reliability and the high stability of the turning precision are ensured;
(4) in the turning process, the turning is adopted, so that the stress of a tool in the turning process is obviously reduced, scrap iron is conveniently discharged, the quality after turning is not influenced, and the service life of the tool is prolonged;
(5) the axial positioning unit is arranged between the wheel pair and the corresponding track wheel, and the adjusting seat is driven to rotate by the driving part, so that the wheel pair and the track wheel are adjusted by one axial positioning unit;
(6) according to the invention, the driving part is utilized to drive the pressing wheel to knock the edge of the wheel set or the rail wheel, so that the play of the bearing in the wheel set or the rail wheel can be quickly adjusted, and meanwhile, the outermost edge is adjusted, so that the adjustment is quick and the play precision is high;
(7) in the pre-tightening process of the wheel pair, the rotatable adjusting seat is adjusted to enable the axis of the pressing wheel to be perpendicular to the tangential direction of the rotating direction of the track wheel or the wheel pair, so that the pre-tightening precision and the stability of the machining process are improved, and the turning precision is further improved;
(8) according to the invention, through the arrangement of the pressing wheel, when the pressing wheel contacts the wheel pair or the track wheel, the pressing wheel is rotated, so that the friction resistance is reduced, the stability of the machining process is improved, the turning precision is further improved, the abrasion degree of the pressing wheel is reduced, and the service life is prolonged;
(9) according to the invention, by adjusting the bearing clearance between the wheel pair and the corresponding track wheel at the same time, after the adjustment is completed, the wheel pair and the corresponding track wheel are pressed tightly by the pressing wheel and do not move any more, so that the precision of synchronous turning is ensured;
in conclusion, the invention has the advantages of the turning, compact structure, high processing precision, high processing efficiency, the simultaneous turning of the wheel pair and the track wheel, and the like.
Drawings
FIG. 1 is a schematic view of the working status of a multi-track wheel system according to the present invention;
FIG. 2 is a schematic view of the operation of a set of rail wheel systems of the present invention;
FIG. 3 is a schematic structural view of a rail-wheel system according to the present invention;
FIG. 4 is a schematic structural view of the track wheel assembly of the present invention;
FIG. 5 is a schematic view of the bogie configuration of the present invention;
FIG. 6 is a schematic axial view of a turning system structure according to the present invention;
FIG. 7 is a schematic front view of the turning system structure of the present invention;
FIG. 8 is a schematic diagram of a turning unit structure according to the present invention;
FIG. 9 is a schematic view of the structure of the mounting bracket of the present invention;
FIG. 10 is a schematic view of an axial positioning unit according to the present invention;
FIG. 11 is a sectional view of the axial positioning unit of the present invention;
FIG. 12 is a front view of an adjusting base according to the present invention;
FIG. 13 is a schematic view of the state of the pinch roller pair for contact and striking;
FIG. 14 is a schematic view of the pinch roller in contact with and striking a rail wheel in accordance with the present invention;
FIG. 15 is a schematic view of a positioning portion of the present invention;
FIG. 16 is a schematic diagram of the adjustment status structure of the multi-group tuning system according to the present invention;
FIG. 17 is a schematic diagram of a tuning system adjustment state structure according to the present invention;
FIG. 18 is a schematic view of the assembly of the present invention;
FIG. 19 is a state diagram of a third embodiment of the present invention;
FIG. 20 is a schematic view of a tuning system in accordance with a third embodiment of the present invention;
FIG. 21 is a schematic structural diagram of a mounting frame according to a third embodiment of the present invention;
FIG. 22 is a schematic view of a fifth embodiment of the present invention;
FIG. 23 is a schematic view showing an assembled state of the fifth embodiment of the cutter body according to the present invention;
fig. 24 is a sectional view showing an assembled state of the cutter body in the fifth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example one
As shown in fig. 1 to 5, the apparatus for repairing a rail wheel and a bogie wheel of a high-speed railway bearing integrated test stand comprises: the device comprises a vehicle body 200, positioning assemblies 300 arranged on two sides of the vehicle body 200, a plurality of groups of bogies 2 linearly arranged below the vehicle body 200, and a rail wheel system 1 correspondingly arranged right below the bogies 2; the track wheel system 1 comprises two groups of track wheel assemblies 11 which are linearly arranged; the rail wheel assembly 11 comprises two rail wheel units 111 which are arranged in a bilateral symmetry manner;
the rail wheel units 111 are respectively provided with a turning system 100 for sequentially adjusting the play of the corresponding wheel pair 20a on the bogie 2 and the rail wheel 10a on the rail wheel system 1 and respectively repairing the wheel pair 20a and the rail wheel 10 a.
It should be noted that the turning units 11122 preferably perform turning at the same time, so that the production efficiency is improved, and the precision of the contact surface after being repaired is gradually improved by synchronous turning, thereby improving the turning precision.
As shown in fig. 15, the positioning assembly 300 includes a set of positioning portions 3 symmetrically disposed, and each positioning portion 3 includes a positioning fixing frame 31, a vertical adjusting portion 32 slidably disposed on the positioning fixing frame 31, and a horizontal adjusting portion 33 connected to the vertical adjusting portion 32; the other end of the horizontal adjusting part 33 is connected with the side wall of the vehicle body 200; after the vehicle body 200 is positioned by the positioning assembly 300, the axis of the wheel set assembly 21 and the axis of the track wheel assembly 11 are positioned in the same vertical plane;
the vertical adjusting part 32 comprises a sliding plate 321 slidably arranged on the positioning fixing frame 31 and an adjusting turntable 322 connected with the sliding plate 321, the adjusting turntable 322 is arranged on the positioning fixing frame 31 through threaded connection, and one end of the adjusting turntable is connected with the sliding plate 321; furthermore, the adjusting turntable 322 can be connected with a driving motor, and automatic up-and-down adjustment is realized in cooperation with the turning process;
the horizontal adjusting part 33 comprises an adjusting nut 331 and adjusting screws 332 arranged at two ends of the adjusting nut 331, reverse threads are arranged inside two ends of the adjusting nut 331, so that the adjusting screws 332 synchronously advance and retreat when the adjusting nut 331 is rotated, and transverse adjustment is realized;
it should be noted that the wheel set assemblies meeting different heights are adjusted by the vertical adjusting portion 32 to perform vertical positioning, the position relationship between the wheel set assemblies in the horizontal direction and the track wheel assembly is adjusted by the horizontal adjusting portion 33, and after the adjustment is completed, the positioning assembly 300 is used for positioning, so as to ensure the stability of the turning process.
In the present embodiment, as shown in fig. 4 and 5, the power unit 4 is further included for driving the wheel pair assembly 21 or the track wheel assembly 11; when the power part 4 drives the wheel set assembly 21, the power part 4 is in transmission connection with the wheel set assembly 21; when the power part 4 drives the track wheel assembly 11, the power part 4 is in transmission connection with the track wheel assembly 11.
Preferably, the wheel pair 20a and the axis of the corresponding track wheel 10a are in the same vertical plane, and the two are in friction transmission.
In the present embodiment, as shown in fig. 6 and 7, turning system 100 includes a mounting bracket 11121 mounted on rail wheel unit 111, two sets of turning units 11122 respectively disposed on both sides of mounting bracket 11121, and an axial positioning unit 11123;
the axial positioning unit 11123 is located between the two sets of machining units 11122 and above the mounting bracket 11121;
the axial positioning unit 11123 is provided between the wheelset 20a and the corresponding rail wheel 10 a.
In this embodiment, as shown in fig. 8 and 9, turning unit 11122 includes an X-axis moving assembly 111221 mounted on mounting frame 11121, a Y-axis moving assembly 111222 slidably disposed on X-axis moving assembly 111221, and a tool holder 111223 disposed on Y-axis moving assembly 111222;
it should be noted that the mounting bracket 11121 is disposed above the rack 1111, the mounting bracket 11121 and the upper cover of the bearing seat of the rack 1111 are designed as a whole, the mounting bracket 11121 is skillfully integrated with the upper cover of the bearing housing of the rail wheel, the turning system 100 and the rail wheel are tightly positioned on the same reference, i.e. the guide shaft, by using the overall design principle of the turning system 100 and the object to be turned, the accuracy of position positioning and displacement between the tool nose of the turning tool and the turning point is not affected by the displacement of the guide wheel due to the external force, and also not affected by the displacement of the turning system 100 due to the external force, so as to ensure the high rigidity of the overall turning system and ensure the high reliability and stability of the turning accuracy.
In addition, the X-axis moving assembly 111221 can reciprocate along the X axis, and a driving part of the X-axis moving assembly 111221 preferably adopts a servo motor to drive a ball screw to transmit, so that the transmission precision is high, and the processing precision is improved; y axle movable assembly 111222 can follow Y axle reciprocating motion, and the preferred servo motor of its drive division drives ball transmission, and transmission precision is high, improves the machining precision.
Preferably, tool holders 111223 of one set of turning units 11122 are disposed toward wheel pair 20a, and tool holders 111223 of another set of turning units 11122 are disposed toward rail wheel 10 a.
It should be noted that the front end of the tool rest 111223 is connected with a turning tool, and in this embodiment, the turning tool is arranged in a reverse turning manner, so that the stress on the turning tool during turning is reduced, the turning precision is improved, the discharge of iron chips is facilitated, and the surface scratch of the wheel set or the rail wheel by the iron chips is reduced, thereby affecting the processing quality.
In this embodiment, as shown in fig. 8, the turning unit 11122 further includes a detecting assembly 111224 provided on the tool holder 111223 for detecting the size of the part to be repaired, and the detecting assembly 111224 is slidably provided on the tool holder 111223;
the detection module 111224 detects the geometric dimensions and form and position tolerances of the guide wheel and the wheel set, determines the dimensions after repair, and then performs turning collectively.
It should be noted that the detection assembly 111224 uses a laser displacement sensor to perform non-contact measurement, the turning unit 11122 is used to drive the detection assembly 111224 to move along the X axis and the Y axis, so as to scan the surface profile of the corresponding steering wheel and rail wheel, and analyze the corresponding geometric dimensions and form and position tolerances, such as diameter, end face run-out, surface roughness, etc., so as to implement non-contact measurement, and the laser displacement sensor is preferably jp LKG 5000; the detection process comprises before turning, during turning and after turning.
Furthermore, the invention adopts a turning mode with a core, under the state that the turning wheel (or the track wheel) to be turned rotates around the same axis center reference with the bearing box set, the rotation precision of the bearing box set can be ensured to be more than (for example, the rotation precision is close to 1:1) repeated reflection on the excircle and the end surface of the turning wheel (or the track wheel), the turning repair is finished, the turning wheel (or the track wheel) can be ensured to have lower excircle and end surface jumping values, the original assembly precision is ensured not to be damaged, and the integral assembly precision can be improved.
Example two
As shown in fig. 10 to 14, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:
in this embodiment, as shown in fig. 10 to 11, the axial positioning unit 11123 includes an adjusting seat 111231 rotatably connected to the mounting bracket 11121, a power unit 111235 for driving the adjusting seat 111231 to rotate, a driving unit 111232 disposed at one end of the adjusting seat 111231, and a pinch roller seat 111233 connected to an output end of the driving unit 111232 and slidably disposed at the other end of the adjusting seat 111231, and a pinch roller 111234 is rotatably disposed on the pinch roller seat 111233;
in this embodiment, as shown in fig. 13-14, a gear is disposed on an outer circle of the adjusting seat 111231, and the power portion 111235 drives the gear to rotate the adjusting seat 111231 on the mounting bracket 11121, so that an axial positioning unit 11123 can adjust a gap between a wheel pair and a bearing on the roller wheel, thereby improving the turning precision;
it should be noted that the axis of the pressure wheel 111234 is perpendicular to the tangential direction of the rotation direction of the track wheel or the wheel pair, so as to improve the precision of adjusting the play;
as an improvement, as shown in fig. 11, the driving portion 111232 includes an air nozzle 111236 connected to one end of the adjusting seat 111231 and connected to an external air source, a piston 111237 slidably disposed inside the adjusting seat 111231 and having an output end connected to the pressure wheel seat 111233, and a spring 111238 sleeved on the piston rod away from the air nozzle 111236;
it should be noted that, the piston 111237 is pushed by air pressure to drive the pressing wheel to move leftward, so as to strike the wheel pair or the rail wheel, and the spring 111238 is used to reset, so as to achieve intermittent striking and gradually adjust the bearing play.
As a modification, as shown in fig. 11-12, the driving portion 111232 and the pressure wheel seat 111233 are eccentrically disposed on the adjustment seat 111231.
EXAMPLE III
As shown in fig. 19 to 21, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The third embodiment is different from the first embodiment in that:
the power part 4 is arranged on the outer side of the end part of the rail wheel shaft; the lower end of the power part 4 is provided with a supporting part 6 for supporting the power part 4; the supporting piece 6 is arranged in an up-down telescopic manner;
the turning system 100 comprises a mounting bracket 11121 mounted on the rail wheel unit 111, and two sets of turning units 11122 symmetrically arranged on both sides of the mounting bracket 11121 and arranged between the two sets of turning units 11122 and mounted on the axial positioning unit 11123 at the top end of the mounting bracket 11121;
mounting sliding plates 111211 are symmetrically arranged on the left and right of the mounting frame 11121, a semicircular mounting hole 111212 matched with a bearing seat is arranged at the bottom end of the mounting frame 11121, so that the mounting seat is skillfully integrated with an upper gland of a bearing box of a rail wheel, the turning system 100 and the rail wheel are tightly positioned on the same reference, namely a guide rail shaft, by utilizing the integral design principle of the turning system 100 and a turned object, the position positioning and displacement precision between the tool nose of the turning tool and the turned point is not influenced by the displacement of the guide rail wheel caused by external force, and the displacement of the turning system 100 caused by external force is also not influenced, so that the high rigidity of the integral turning system is ensured, and the high reliability and high stability of the turning precision are ensured.
The axial positioning unit 11123 is provided between the wheelset 20a and the corresponding rail wheel 10 a.
Example four
As shown in fig. 22 to 24, in which the same or corresponding components as in the first embodiment are denoted by the same reference numerals as in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The fourth embodiment is different from the first embodiment in that:
in this embodiment, the tool rest 111223 includes a tool bar 111225 connected to the Y-axis moving assembly 111222, a "U" -shaped clamping seat 111226 disposed at an end of the tool bar 111225, a locking block 111227 disposed inside the "U" -shaped clamping seat 111226, and a fine adjustment bolt 111228 disposed on the "U" -shaped clamping seat 111226;
one end of the locking block 111227 is provided with a U-shaped groove, one end of the fine adjustment bolt 111228 is clamped with the U-shaped groove and drives the locking block 111227 to move left and right, and the bottom of the U-shaped clamping seat 111226 is obliquely arranged; the upper end face of the locking block 111227 is obliquely arranged and is matched with the bottom of the U-shaped clamping seat 111226; a positioning bolt is arranged below the U-shaped groove, one end of the positioning bolt is in contact with the cutter body arranged in the U-shaped clamping seat 111226, and one end of the cutter body is positioned;
in addition, after the cutter body is placed in the U-shaped clamping seat, the fine tuning bolt 111228 is rotated to drive the locking block 111227 to move leftwards, the locking block 111227 is matched with the inclined surface of the U-shaped clamping seat 111226, so that the cutter body is pressed by the locking block 111227, and the positioning bolt is rotated to press the left end of the positioning bolt and one end of the cutter body, so that the cutter body is positioned transversely.
EXAMPLE five
The method for repairing the track wheel and the bogie wheel repairing equipment of the high-speed rail bearing comprehensive test bed in the technical scheme of the first embodiment to the fourth embodiment comprises the following steps:
step one, positioning the wheel set system, as shown in fig. 16-17, transferring the bogie 2 to the upper part of the rail wheel system 1 through the guide rail beam 5, and withdrawing the guide rail beam 5 after the axis of the bogie 2 and the axis of the rail wheel system 1 are positioned in the same vertical plane through the vertical adjusting part 412 and the horizontal adjusting part 33 of the adjusting and positioning assembly 300;
secondly, pre-tightening the wheel pair and the track wheel, adjusting an axial positioning unit 11123 on one side of the track wheel assembly 11 to enable a pressure wheel 111234 arranged eccentrically to rotate upwards, enabling the pressure wheel 111234 to be in contact with the wheel pair 20a, driving the pressure wheel 111234 to advance by using a driving part 111232 and pressing the edge of the wheel pair 20a tightly until the clearance of a wheel pair bearing on the shaft of the wheel pair 20a meets the process requirement in the rotating process of the wheel pair 20a, and keeping a certain pressing force to finish pre-tightening the wheel pair 20 a; the axial positioning unit 11123 on the other side of the adjusting track wheel assembly 11 enables the eccentrically arranged pressure wheel 111234 to rotate downwards, enables the pressure wheel 111234 to contact with the track wheel, utilizes the driving part 111232 to drive the pressure wheel 111234 to advance and compress the edge of the track wheel until the bearing clearance on the track wheel shaft meets the process requirements in the rotation process of the track wheel, and keeps a certain compression force to complete the pre-tightening of the track wheel;
step three, rail wheel measurement, namely, the multiple groups of detection assemblies 111224 synchronously measure the sizes of the rail wheels to be repaired, the data are summarized, and a computer analyzes and formulates the repairing process of the multiple groups of rail wheels according to the measured data so that the sizes of the repaired multiple groups of rail wheels are kept consistent;
step four, wheel set measurement, namely, the multiple groups of detection assemblies 111224 synchronously measure the sizes of the wheel sets to be repaired, the data is summarized, and a computer analyzes and formulates the repairing process of the multiple groups of wheel sets, so that the sizes of the repaired multiple groups of wheel sets are kept consistent;
turning, starting the power part 4, driving the wheel set assembly 21 or the rail wheel assembly 11 to rotate, and controlling the two sets of turning units 11122 to respectively turn the rail wheels and the treads of the wheel sets;
and step six, detecting, namely, the detection component 111224 rechecks the rail wheels and the wheel sets which are subjected to the lathe repairing, so as to ensure that the sizes of a group of wheel sets repaired at the same time are the same and the sizes of a group of rail wheels are the same.
Preferably, in the fifth step, the two sets of turning units 11122 synchronously turn the rail wheels and the treads of the wheel sets;
further, the turning unit 11122 can be selected to turn the tread of the rail wheel or the wheel set independently according to the tread wear conditions of the rail wheel and the wheel set;
as an improvement, the wheel pair assembly is used as a driving wheel and is in frictional contact with a track wheel, the track wheel is used as a driven wheel, and the wheel pair and the tread of the track wheel are turned to matching sizes according to the sizes measured in the third step and the fourth step; the driving motor of the rail wheel is a generator at the moment.
As an improvement, the track wheel is used as a driving wheel, the friction contact wheel pair is used, the steering wheel is used as a driven wheel, and the steering wheel and the tread of the track wheel are turned to matching sizes according to the sizes measured in the step three; at the moment, the driving motor of the wheel pair is a generator.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. Track wheel and bogie wheel repair equipment of high-speed railway bearing integrated test platform includes: the device comprises a vehicle body (200), positioning components (300) arranged on two sides of the vehicle body (200) and a plurality of groups of bogies (2) linearly arranged below the vehicle body (200), and is characterized by further comprising rail wheel systems (1) correspondingly arranged right below the bogies (2); the rail wheel system (1) comprises two groups of rail wheel assemblies (11) which are linearly arranged; the rail wheel assembly (11) comprises two rail wheel units (111) which are arranged in a bilateral symmetry manner;
the track wheel units (111) are respectively provided with a turning system (100) which is used for performing clearance adjustment on the corresponding wheel pair (20 a) on the bogie (2) and the track wheel (10 a) on the track wheel system (1) and respectively performing repair processing on the wheel pair (20 a) and the track wheel (10 a);
the turning system (100) comprises a mounting bracket (11121) mounted on the rail wheel unit (111), two sets of turning units (11122) respectively arranged on two sides of the mounting bracket (11121), and an axial positioning unit (11123);
the axial positioning unit (11123) is positioned between the two sets of the turning units (11122) and is arranged above the mounting frame (11121);
the axial positioning unit (11123) is arranged between the wheel pair (20 a) and the corresponding rail wheel (10 a);
the turning unit (11122) comprises an X-axis moving assembly (111221) mounted on the mounting frame (11121), a Y-axis moving assembly (111222) arranged on the X-axis moving assembly (111221) in a sliding mode, and a tool rest (111223) arranged on the Y-axis moving assembly (111222);
the tool holders (111223) of one set of the turning units (11122) are arranged toward the wheel set (20 a), and the tool holders (111223) of the other set of the turning units (11122) are arranged toward the rail wheel (10 a).
2. The high-speed railway bearing complex test stand rail wheel and bogie wheel repair apparatus as claimed in claim 1, wherein the axis of the wheel pair (20 a) and its corresponding rail wheel (10 a) are in the same vertical plane and are in friction transmission.
3. The high-speed railway bearing comprehensive test bed rail wheel and bogie wheel repairing equipment as claimed in claim 1, wherein the axial positioning unit (11123) comprises an adjusting seat (111231) rotatably connected with the mounting frame (11121), a power part (111235) driving the adjusting seat (111231) to rotate, a driving part (111232) arranged at one end of the adjusting seat (111231), and a pinch roller seat (111233) connected with the output end of the driving part (111232) and slidably arranged at the other end of the adjusting seat (111231), and a pinch roller (111234) is rotatably arranged on the pinch roller seat (111233).
4. The device for repairing rail wheel and bogie wheel of high-speed railway bearing integrated test stand according to claim 3, wherein the driving part (111232) comprises an air tap (111236) communicated with one end of an adjusting seat (111231) and connected with an external air source, a piston (111237) slidably arranged in the adjusting seat (111231) and having an output end connected with the pressure wheel seat (111233), and a spring (111238) sleeved on the piston rod far away from the air tap (111236).
5. The rail-wheel and bogie-wheel restoration device of a high-speed railway bearing integrated test stand according to claim 3, wherein the driving part (111232) and the pressure wheel seat (111233) are eccentrically arranged on the adjusting seat (111231).
6. The rail wheel and bogie wheel repair device of a high-speed railway bearing integrated test stand according to claim 1, wherein the turning unit (11122) further comprises a detection assembly (111224) provided on the tool holder (111223) for detecting the size of a part to be repaired.
7. The method for repairing the rail wheel and the bogie wheel repairing equipment of the high-speed railway bearing comprehensive test bed is characterized by comprising the following steps of:
the method comprises the following steps that firstly, a wheel pair system is positioned, a bogie (2) is transferred to the upper side of a rail wheel system (1), and the axis of the bogie (2) and the axis of the rail wheel system (1) are located in the same vertical plane through adjusting a positioning assembly (300);
secondly, pre-tightening the wheel pair and the track wheel, adjusting an axial positioning unit (11123) on one side of the track wheel assembly (11) to enable a pressure wheel (111234) arranged eccentrically to rotate upwards, enabling the pressure wheel (111234) to be in contact with the wheel pair (20 a) until the play of a wheel pair bearing on the shaft of the wheel pair (20 a) in the rotating process of the wheel pair (20 a) meets the process requirement;
adjusting an axial positioning unit (11123) on the other side of the track wheel assembly (11) to enable the eccentrically arranged pressure wheel (111234) to rotate downwards, and enabling the pressure wheel (111234) to be in contact with the track wheel until the bearing clearance on the track wheel shaft meets the process requirements in the rotating process of the track wheel;
step three, measuring the rail wheels, wherein the multiple groups of detection assemblies (111224) synchronously measure the sizes of the rail wheels to be repaired, the data are summarized, and a computer analyzes and formulates the repairing process of the multiple groups of rail wheels to ensure that the sizes of the repaired multiple groups of rail wheels are consistent;
step four, wheel pair measurement, wherein the multiple groups of detection assemblies (111224) synchronously measure the sizes of the wheel pairs (20 a) to be repaired, the data are summarized, and a computer analyzes and formulates the repair process of the multiple groups of wheel pairs (20 a) so that the sizes of the multiple groups of wheel pairs (20 a) after repair are kept consistent;
turning, namely driving the wheel pair assemblies (21) or the track wheel assemblies (11) to rotate, and controlling the two sets of turning units (11122) to respectively turn the treads of the track wheels and the wheel pairs (20 a) to a process size;
and sixthly, detecting that the detection assembly (111224) rechecks the lathed track wheels and the wheel pairs (20 a) to ensure that the sizes of a group of wheel pairs (20 a) repaired at the same time are the same and the sizes of a group of track wheels are the same.
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| CN202110540256.1A CN113118699B (en) | 2021-05-18 | 2021-05-18 | Track wheel and bogie wheel repairing equipment and method for high-speed rail bearing comprehensive test bed |
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| CN202110540256.1A CN113118699B (en) | 2021-05-18 | 2021-05-18 | Track wheel and bogie wheel repairing equipment and method for high-speed rail bearing comprehensive test bed |
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| CN113118699B true CN113118699B (en) | 2022-03-18 |
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| RU2165834C1 (en) * | 1999-08-26 | 2001-04-27 | Рогов Анатолий Павлович | Method for making or repairing railway road wheel pairs |
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| CN113118699A (en) | 2021-07-16 |
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