CN107675568B - Intelligent automatic profiling and polishing device for rail tops of steel rails - Google Patents
Intelligent automatic profiling and polishing device for rail tops of steel rails Download PDFInfo
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- CN107675568B CN107675568B CN201711104486.3A CN201711104486A CN107675568B CN 107675568 B CN107675568 B CN 107675568B CN 201711104486 A CN201711104486 A CN 201711104486A CN 107675568 B CN107675568 B CN 107675568B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The application relates to the field of railway equipment, in particular to an intelligent automatic rail top profiling and polishing device suitable for rail top weld flash welding of a base, which comprises a base trolley, wherein two first supports are arranged on the base trolley, the rail top profiling and polishing device is arranged on the two first supports, each support is also provided with a clamping centering and positioning device, and two clamping centering and positioning devices are respectively arranged in the two side directions of the rail top profiling and polishing device. The rail top profiling grinding device can automatically judge the position of the steel rail parent metal through current feedback of the grinding wheel motor, automatically adjust the feeding amount of the grinding head, does not need to add other detection devices, and has stable and reliable detection position. The application can shape the outline of the rail to be polished in real time, realize automatic polishing of the rail top weld joint and not damage the rail parent metal. The mechanical profiling device has the advantages of simple structure and high cost performance.
Description
Technical Field
The application relates to the field of railway equipment, in particular to an intelligent automatic rail top profiling and polishing device suitable for rail top weld flash welding of a base post-rail.
Background
According to the requirements of 'TB/T1632.2-2014 steel rail welding part 2 flash welding', welding rib shaping (rough grinding) processing is required after steel rail welding: the welding rib shaping can be carried out by adopting a milling or grinding mode, and the steel rail base metal is not damaged during the welding rib shaping. In the existing rail polishing technology, the patent CN200720021510.2 railway rail profiling polisher is mainly manually profiling, manually judging polishing feed amount and has high labor intensity, and is mainly suitable for polishing weld flash after field welding. The patent CN201520502342.3 discloses a portable curve control high-precision steel rail profiling polisher, which mainly uses the amplified profile curve of the steel rail as the motion track of a polishing head, and the profiling polishing is basically different from the profiling polishing of the application in working principle. The patent CN202411982U is a movable profiling refiner for the steel rail welded joint, is mainly used for the fine grinding process, is mostly used for field weld flash grinding, is manually mastered, and has low automation degree by judging grinding feed by human eyes. In summary, the existing steel rail profiling grinding machine is not suitable for rough grinding of steel rail welding seams after base flash welding, and is low in automation and intelligent degree and relatively depends on manual experience. With the rapid development of high-speed rails, the seamless line has higher and higher requirements on the flatness of welded seams of the rails after welding, so that very high requirements are put forward on rail polishing equipment, and the rail polishing equipment which is manually mastered and judges the polishing feed by human eyes cannot meet the polishing requirements of the high-speed rails.
Disclosure of Invention
In order to solve the problems, the application aims to provide an intelligent automatic rail top profiling polishing device which is automatic special equipment integrating machinery, electricity and gas and is suitable for polishing weld flash on the rail top of a steel rail after base flash welding.
The specific scheme of the application is as follows:
an intelligent automatic profile modeling rail grinding device which characterized in that: the rail head profiling and polishing device comprises a base trolley, wherein two first supports are arranged on the base trolley, rail head profiling and polishing devices are arranged on the two first supports, clamping centering and positioning devices are further arranged on each support, and clamping centering and positioning devices are respectively arranged in the two side directions of the rail head profiling and polishing devices. The rail to be polished passes through the rail top profiling polishing device, and the two clamping centering positioning devices clamp and center the two ends of the rail to be polished respectively, so that the rail to be polished is prevented from moving during polishing.
The base trolley is placed on the equipment foundation rail, and moves along the equipment foundation rail.
Clamping centering positioning device structure:
the clamping centering positioning device comprises a left clamping plate and a right clamping plate, the left clamping plate and the right clamping plate are respectively arranged on the base, gears are arranged on the left clamping plate and the right clamping plate, the left clamping plate and the right clamping plate are meshed with each other through the gears, and the bottom of at least one of the left clamping plate and the right clamping plate is connected with an air cylinder.
Clamping blocks are arranged on the inner sides of the upper parts of the left clamping plate and the right clamping plate, and the clamping blocks are concave; a piston rod of the air cylinder is connected with the left clamping plate, and a cylinder body of the air cylinder is arranged on the first support; the base is arranged on the first support; the base is provided with a roller.
The piston rod of the air cylinder pushes the left clamping plate, and the left clamping plate and the right clamping plate are meshed with each other, so that the right clamping plate is driven to rotate and simultaneously rotate inwards, and the inward concave part in the clamping block clamps the rail bottom of the rail to be polished.
The rail top profiling and polishing device structure comprises:
the rail top profiling polishing device comprises a polishing frame, two ends of the polishing frame are connected with air cylinder lifting frames, sliding blocks are arranged on the air cylinder lifting frames, linear guide rails matched with the air cylinder lifting frames are arranged on the slewing bracket assemblies, and the air cylinder lifting frames can move up and down on the linear guide rails on the slewing bracket assemblies through the sliding blocks.
And the rotary bracket component is provided with a single-acting air cylinder. The device is used for preventing the grinding head above the steel rail from falling down when the air source is cut off or fails, and avoiding the damage to equipment or personnel.
And the rotary bracket assembly is provided with a lifting cylinder which is fixedly connected with the cylinder lifting frame. The lifting cylinder drives the cylinder lifting frame and the polishing frame to move up and down.
The slewing bracket assembly comprises an external gear slewing bearing, and the external gear slewing bearing is arranged on the slewing support. The slewing bracket assembly can swing 90 degrees from the vertical direction.
The lower side of the polishing frame is provided with a profiling explorator. During polishing, under the action of the lifting cylinder, the profiling explorator is always pressed on the steel rail parent metal.
The front end of the control valve reversing valve of the lifting cylinder is connected with a pneumatic proportional pressure reducing valve, when polishing, the pressure of the lifting cylinder is constant all the time, the force of profiling on the steel rail parent metal is constant, and the phenomenon that the steel rail parent metal is damaged by profiling during overturning is avoided.
The linear guide rail is arranged on the polishing frame along the length direction, a sliding block is arranged on a first support of the rail top polishing grinding wheel adjusting and compensating mechanism, and the sliding block is sleeved on the linear guide rail of the polishing frame.
The linear guide rail of the polishing frame is movably sleeved with a rail top polishing grinding wheel adjusting and compensating mechanism through a sliding block.
Rail top grinding wheel adjusting and compensating mechanism:
the rail top grinding wheel adjusting and compensating mechanism comprises a first servo motor, a first speed reducer, a coupler, a screw nut transmission pair, a second support, a grinding motor, a grinding wheel connecting flange, a grinding wheel, a linear guide rail slider combination and a grinding motor mounting plate. And a screw rod in the first servo motor, the first speed reducer and the screw rod nut transmission pair is arranged on the second support. And the linear guide rail in the linear guide rail sliding block is arranged on the second support. The slide block in the linear guide rail slide block is arranged on the polishing motor mounting plate. And a nut in the screw nut transmission pair is arranged on the polishing motor mounting plate. The polishing motor is arranged on the polishing motor mounting plate. The grinding wheel is arranged on the grinding motor through a grinding wheel connecting flange.
The first servo motor is decelerated through the first speed reducer, a screw rod in a screw rod nut transmission pair is driven to a nut through a coupler, and the nut is guided through a linear guide rail sliding block, so that the up-and-down movement of the polishing motor and the polishing grinding wheel is realized, and further the abrasion compensation of the grinding wheel is realized. The relative position of the grinding wheel and the steel rail parent metal can be determined through current feedback by the grinding motor, the relative position is fed back to a PLC control program, and the first servo motor automatically adjusts the feed amount of the grinding wheel, so that the automatic feed function of the grinding wheel is realized.
And a swinging air cylinder is arranged on the grinding machine frame, an air cylinder piston rod of the swinging air cylinder is connected with a first support in the rail top grinding wheel adjusting and compensating mechanism, and the rail top grinding wheel adjusting and compensating mechanism is pushed to move on the grinding machine frame through the swinging air cylinder. The function of reciprocating polishing of the detection position and weld flash of the rail top base metal of the steel rail to be polished by the rail top polishing grinding wheel is realized.
A rotation driving part:
the rotary driving part mainly comprises two bearing seats, a synchronizing shaft is connected between the two bearing seats, two pinions are further fixed on the synchronizing shaft, and a second servo motor is connected with one bearing seat through a second speed reducer.
The rotary driving part drives the large gear on the external tooth rotary support through the small gear, and then drives the rotary support assembly to do overturning motion.
The grinding machine frame, the rail top grinding wheel adjusting and compensating mechanism, the cylinder lifting frame, the lifting cylinder and the profiling explorator which are arranged on the rotary support assembly are driven by the rotary driving part to perform overturning motion, and can be turned over by 90 degrees from the vertical direction, so that the grinding motion of welding seams and weld flash on the two sides of the rail top and the rail top is realized.
And each first support is provided with a rotary support, and each rotary support is provided with a compression cylinder.
The working principle and the working process of the application are as follows: when a rail top weld flash is polished, firstly, after the grinding wheel of the rail top polishing device is adjusted to be near a welding line, a centering clamping device and a compacting cylinder at two sides are started to clamp and center a steel rail, a pneumatic control proportional pressure reducing valve is arranged on a profiling lifting cylinder to ensure that the pressure of the profiling lifting cylinder is constant, a profiling explorator is compacted on the steel rail head under the action of the profiling lifting cylinder, a swinging cylinder is started, a grinding wheel motor is started, the grinding wheel motor is adjusted through a frequency converter and runs at a low speed, when the motor runs at a low speed, current is sensitive to load, the grinding wheel lightly touches the steel rail, current is suddenly changed, a signal is transmitted to a PLC control program, and the PLC control program adjusts the feeding quantity of the polishing head through a servo motor to realize automatic position detection and automatic feed. After the position is detected, the grinding wheel motor is regulated by the frequency converter, and the high-speed rotation is recovered. And starting the rotary servo motor, and enabling the grinding frame and a rail top grinding wheel adjusting and compensating mechanism arranged on the grinding frame to overturn and grind along the track of the section of the rail head by the profiling template, so that profiling grinding of the weld flash of the rail head is realized.
The application has the advantages that:
1. the rail top profiling grinding device can automatically judge the position of the steel rail parent metal through current feedback of the grinding wheel motor, automatically adjust the feeding amount of the grinding head, does not need to add other detection devices, and has stable and reliable detection position. The application can shape the outline of the rail to be polished in real time, realize automatic polishing of the rail top weld joint and not damage the rail parent metal. The mechanical profiling device has the advantages of simple structure and high cost performance.
2. The application is mainly applied to rough grinding of rail top weld flash after factory welding or base welding and steel rail flash welding.
Drawings
Fig. 1 is a schematic diagram of the overall structural layout of the present application.
Fig. 2 and 3 are schematic structural views (three-dimensional views) of a rail top profiling grinding device in the application.
Fig. 4 and 5 are schematic structural views (two-dimensional views) of a rail top profiling polishing device in the application.
Fig. 6 and 7 are schematic structural views of a clamping and centering device in the application.
Fig. 8, 9 and 10 are schematic diagrams of rail top grinding wheel adjustment and compensation structures of the rail top grinding wheel.
Fig. 11 and 12 are schematic diagrams of the structure of the swing driving part of the present application.
In the accompanying drawings:
the rail top profiling and polishing device comprises a rail top profiling and polishing device 1, a first support 2, a clamping centering and positioning device 3 and a base trolley 4.
The grinding machine comprises a single-acting cylinder 101, a compacting cylinder 102, a rotary support 103, a rail 104 to be ground, a rotary driving part 105, a rotary support assembly 106, a grinding frame 107, a rail top grinding wheel adjusting and compensating mechanism 108, a swinging cylinder 109, a cylinder lifting frame 110, a lifting cylinder 111 and a profiling copying mold 112.
A left clamping plate 301, a clamping block 302, a right clamping plate 303, an air cylinder 304, a base 305 and a roller 306.
The grinding machine comprises a first servo motor 1081, a first speed reducer 1082, a coupling 1083, a screw nut transmission pair 1084, a second support 1085, a grinding motor 1086, a grinding wheel connecting flange 1087, a grinding wheel 1088, a linear guide rail slide block 1089 and a grinding motor mounting plate 10810.
A second servomotor 1051, a second speed reducer 1052, a bearing block 1053, a pinion 1054, and a synchronizing shaft 1055.
Detailed Description
Example 1
The utility model provides an intelligent automatic profile modeling rail grinding device includes base platform truck 4, be provided with two first supports 2 on the base platform truck 4, the setting of roof rail profile modeling grinding device 1 is on two first supports 2, still is provided with on every support and presss from both sides tight centering positioner 3, the both sides direction of roof rail profile modeling grinding device 1 respectively sets up a tight centering positioner 3. The steel rail 104 to be polished passes through the rail top profiling polishing device 1, and the two clamping centering positioning devices 3 respectively clamp and center the two ends of the steel rail 104 to be polished, so that the steel rail 104 to be polished is prevented from moving during polishing. The base trolley 4 is placed on the equipment foundation rail, and the base trolley 4 moves along the equipment foundation rail. The rail top profiling grinding device 1 can automatically judge the position of the steel rail parent metal through current feedback of the grinding wheel motor, automatically adjust the feeding amount of the grinding head, does not need to add other detection devices, and has stable and reliable detection position. The shape of the steel wheel actually manufactured has manufacturing deviation from the shape of the theoretical steel rail, the application can shape the shape outline of the steel rail 104 to be polished in real time, realize automatic polishing of the rail top weld joint and can not damage the steel rail parent metal. The mechanical profiling device has the advantages of simple structure and high cost performance.
Example 2
The utility model provides an intelligent automatic profile modeling rail grinding device includes base platform truck 4, be provided with two first supports 2 on the base platform truck 4, the setting of roof rail profile modeling grinding device 1 is on two first supports 2, still is provided with on every support and presss from both sides tight centering positioner 3, the both sides direction of roof rail profile modeling grinding device 1 respectively sets up a tight centering positioner 3. The steel rail 104 to be polished passes through the rail top profiling polishing device 1, and the two clamping centering positioning devices 3 respectively clamp and center the two ends of the steel rail 104 to be polished, so that the steel rail 104 to be polished is prevented from moving during polishing.
The base trolley 4 is placed on the equipment foundation rail, and the base trolley 4 moves along the equipment foundation rail.
The clamping centering positioning device 3 comprises a left clamping plate 301 and a right clamping plate 303, the left clamping plate 301 and the right clamping plate 303 are respectively arranged on the base 305, gears are arranged on the left clamping plate 301 and the right clamping plate 303, the left clamping plate 301 and the right clamping plate 303 are meshed with each other through the gears, and an air cylinder 304 is connected to the bottom of at least one of the left clamping plate 301 and the right clamping plate 303.
Clamping blocks 302 are arranged on the inner sides of the upper parts of the left clamping plate 301 and the right clamping plate 303, and the clamping blocks 302 are concave; the piston rod of the air cylinder 304 is connected with the left clamping plate 301, and the cylinder body of the air cylinder 304 is arranged on the first support 2; the base 305 is mounted on the first support 2; the base 305 has a drum 306 mounted thereon.
The piston rod of the cylinder 304 pushes the left clamping plate 301, and the left clamping plate 301 and the right clamping plate 303 are meshed with each other, so that the right clamping plate 303 is driven to rotate and simultaneously rotate inwards, and the concave part in the clamping block 302 clamps the rail bottom of the rail 104 to be polished.
The rail top profiling polishing device 1 comprises a polishing frame 107, two ends of the polishing frame 107 are connected with air cylinder lifting frames 110, sliding blocks are mounted on the air cylinder lifting frames 110, linear guide rails matched with the air cylinder lifting frames are mounted on the slewing bracket assembly 106, and the air cylinder lifting frames 110 can move up and down on the linear guide rails of the slewing bracket assembly 106 through the sliding blocks.
The slewing bracket assembly 106 is provided with a single-acting cylinder 101. The device is used for preventing the grinding head above the steel rail from falling down when the air source is cut off or fails, and avoiding the damage to equipment or personnel.
The slewing bracket assembly 106 is provided with a lifting cylinder 111, and the lifting cylinder 111 is fixedly connected with the cylinder lifting frame 110. The cylinder lifting frame 110 and the grinding frame 107 are driven to move up and down by the lifting cylinder 111.
The slewing bearing assembly 106 comprises an external gear slewing bearing, and the external gear slewing bearing is mounted on the slewing bearing 103. The swing bracket assembly 106 may swing 90 degrees from vertical.
A profiling cam 112 is mounted on the underside of the sander frame 107. During polishing, the profiling copying mold 112 is always pressed on the steel rail parent metal under the action of the lifting cylinder 111.
The front end of the control valve reversing valve of the lifting cylinder 111 is connected with a pneumatic proportional pressure reducing valve, when polishing, the pressure of the lifting cylinder 111 is constant all the time, the force of the profiling explorator 112 pressing on the steel rail parent metal is also constant, and the profiling explorator 112 is prevented from damaging the steel rail parent metal during overturning.
The grinding machine frame 107 is provided with a linear guide rail along the length direction, a first support 2 of the rail top grinding wheel adjusting and compensating mechanism 108 is provided with a sliding block, and the sliding block is arranged on the linear guide rail of the grinding machine frame 107.
The linear guide rail of the grinding frame 107 is movably sleeved with a rail top grinding wheel adjusting and compensating mechanism 108 through a sliding block.
The rail head grinding wheel adjustment compensation mechanism 108 includes a first servo motor 1081, a first speed reducer 1082, a coupling 1083, a screw nut transmission pair 1084, a second support 1085, a grinding motor 1086, a grinding wheel connection flange 1087, a grinding wheel 1088, a linear guide rail slide 1089 combination, and a grinding motor mounting plate 10810. The screws in the first servo motor 1081, the first speed reducer 1082 and the screw nut drive pair 1084 are mounted on the second support 1085. The linear guide rail of the linear guide rail slider 1089 is mounted on the second support 1085. The slide blocks in the linear guide slide 1089 are mounted on the sanding motor mounting plate 10810. The nut in the lead screw nut drive 1084 is mounted on the grinding motor mounting plate 10810. The grinding motor 1086 is mounted on the grinding motor mounting plate 10810. The grinding wheel 1088 is mounted to the grinding motor 1086 via a wheel attachment flange 1087.
The first servo motor 1081 is decelerated through a first speed reducer 1082, a screw in a screw nut transmission pair 1084 is driven by a coupling 1083 to be transmitted to a nut, and is guided by a linear guide slider 1089, so that up-and-down movement of the polishing motor 1086 and the polishing grinding wheel 1088 is realized, and further abrasion compensation of the grinding wheel is realized. The relative position of the grinding wheel and the steel rail parent metal can be determined through current feedback by the grinding motor 1086, the relative position is fed back to a PLC control program, the feeding amount of the grinding wheel is automatically adjusted by the first servo motor 1081, and the automatic feeding function of the grinding wheel is realized.
The swing cylinder 109 is arranged on the grinding frame 107, a cylinder 304 piston rod of the swing cylinder 109 is connected with the first support 2 in the rail top grinding wheel adjusting and compensating mechanism 108, and the rail top grinding wheel adjusting and compensating mechanism 108 is pushed to move on the grinding frame 107 through the swing cylinder 109. The function of reciprocating grinding of the rail top grinding wheel 1088 on the detection position and weld flash of the rail top parent metal of the steel rail 104 to be ground is realized.
The swing driving unit 105 mainly includes two bearing blocks 1053, a synchronizing shaft 1055 is connected between the two bearing blocks 1053, two pinion gears 1054 are further fixed on the synchronizing shaft 1055, and the second servo motor 1051 is connected with one bearing block 1053 through a second speed reducer 1052.
The rotary driving part 105 drives a large gear on the external tooth rotary support through a small gear 1054, and further drives the rotary bracket assembly 106 to perform overturning motion.
The grinding machine frame 107, the rail top grinding wheel adjusting and compensating mechanism 108, the cylinder lifting frame 110, the lifting cylinder 111 and the profiling explorator 112 which are arranged on the rotary support assembly 106 are driven by the rotary driving part 105 to perform overturning motion, and can be turned over by 90 degrees from the vertical direction to realize the grinding motion of welding seams and weld flashes on the two sides of the rail top and the rail top.
A swivel support 103 is mounted on each first support 2, and a compression cylinder 102 is mounted on each swivel support 103.
The working principle and the working process of the application are as follows: when a rail top weld flash is polished, firstly, after the grinding wheel of the rail top polishing device is adjusted to be near a welding line, a centering clamping device and a compression cylinder 102 at two sides are started to clamp and center the steel rail, a pneumatic control proportional pressure reducing valve is arranged on a profiling lifting cylinder 111, the pressure of the profiling lifting cylinder 111 is ensured to be constant, a profiling explorator 112 is compressed on a steel rail head under the action of the profiling lifting cylinder 111, a swinging cylinder 109 is started, a grinding wheel motor is started, the grinding wheel motor is adjusted through a frequency converter, and runs at a low speed, when the motor runs at a low speed, current is sensitive to load, the grinding wheel lightly touches the steel rail, current is suddenly changed, the signal is transmitted to a PLC (programmable logic controller) control program, and the PLC control program adjusts the feeding quantity of the polishing head through a servo motor to realize automatic position detection and automatic feeding. After the position is detected, the grinding wheel motor is regulated by the frequency converter, and the high-speed rotation is recovered. The rotary servo motor is started, and the profiling explorator 112 enables the grinding machine frame 107 and the rail top grinding wheel adjusting and compensating mechanism 108 arranged on the profiling explorator to overturn and grind along the track of the section of the rail head, so that profiling grinding of the weld flash of the rail head is realized.
The rail top profiling grinding device 1 can automatically judge the position of the steel rail parent metal through current feedback of the grinding wheel motor, automatically adjust the feeding amount of the grinding head, does not need to add other detection devices, and has stable and reliable detection position. The shape of the steel wheel actually manufactured has manufacturing deviation from the shape of the theoretical steel rail, the application can shape the shape outline of the steel rail 104 to be polished in real time, realize automatic polishing of the rail top weld joint and can not damage the steel rail parent metal. The mechanical profiling device has the advantages of simple structure and high cost performance. The rail top profiling and polishing device 1 presses the steel rail 104 to be polished on the two sides of the welding seam through the profiling on the two sides of the welding seam, and performs profiling polishing on the weld flash of the steel rail without damaging the base metal of the steel rail. The application is mainly applied to rough grinding of rail top weld flash after factory welding or base welding and steel rail flash welding.
Example 3
The application is further described below with reference to the accompanying drawings:
as shown in figure 1, the intelligent rail top profiling polishing device is used for automatically and coarsely polishing weld flash on the rail top and two side surfaces of the rail top, and meets the coarse polishing requirement of TB/T1632.2-2014 rail welding part 2 flash welding.
As shown in fig. 1, 2, 3 and 4: the rail top profiling and polishing device 1 is arranged on the support 2 and is arranged on the upper side of a rail to be polished. The rail top profiling and polishing device 1 can swing 90 degrees from the vertical direction positively and negatively, so that automatic detection and automatic polishing of welding seams and weld flash on the rail top and the two sides of the rail top are realized.
As shown in fig. 1: the support 2 is mounted on a base trolley 4.
As shown in fig. 1: the steel rail clamping centering positioning devices 3 are arranged on the support 2 and distributed on two sides of the rail top profiling and polishing device 1. The steel rail clamping centering positioning device 3 consists of a bracket, a roller, a gear, a cylinder and the like. The steel rail clamping centering positioning device 3 can realize clamping centering of steel rails at two ends of a weld joint and prevent the steel rails from moving during polishing.
As shown in fig. 2, 3 and 4: the rail top profiling grinding device 1 is composed of a single-acting cylinder 101 (two), a pressing cylinder 102 (two), a rotary support 103 (two), a steel rail 104 to be ground, a rotary driving part (a servo motor+a speed reducer+a pinion gear) 105, a rotary support assembly 106 (two), a grinding frame 107, a rail top grinding wheel adjusting and compensating mechanism 108, a swinging cylinder 109, a cylinder lifting frame 110 (two), a lifting cylinder 111 (two), a profiling explorator 112 (two) and the like.
As shown in fig. 2, 3 and 4: the single-acting cylinder 101 is arranged on the rotary bracket assembly 106 and is used for preventing the grinding head above the steel rail from falling down when the air source is cut off or fails, so as to avoid the damage to equipment or personnel.
As shown in fig. 2, 3 and 4: the compression cylinder 102 (two) is mounted on a swivel support 103. During polishing, the steel rail to be polished is pressed downwards from the vertical direction.
As shown in fig. 2, 3 and 4: the swivel support 103 is mounted on the support 2.
As shown in fig. 2 and 3: the slewing bearing assembly 106 comprises an external gear slewing bearing, and is mounted on the slewing bearing 103 through the external gear slewing bearing. The swing bracket assembly 106 may swing 90 degrees from vertical.
As shown in fig. 2, 3 and 4: the two ends of the polishing frame 107 are connected with the cylinder lifting frame 109 through bolts.
As shown in fig. 2, 3 and 4: the cylinder lifting frame 109 is provided with a sliding block, the revolving support assembly 106 is provided with a linear guide rail, and the cylinder lifting frame 109 can move up and down on the linear guide rail of the revolving support assembly 106 through the sliding block.
As shown in fig. 2, 3 and 4: the lifting cylinder 111 is installed on the revolving support assembly 106, and the lifting cylinder 111 drives the cylinder lifting frame 110 and the polishing frame 107 to move up and down.
As shown in fig. 2 and 3: the profiling cam 112 is mounted on the underside of the sander frame 107. During polishing, the profiling copying mold 112 is always pressed on the steel rail parent metal under the action of the lifting cylinder 111.
As shown in fig. 2 and 3: the front end of the control valve reversing valve of the lifting cylinder 111 is connected with a pneumatic proportional pressure reducing valve, and the pressure of the lifting cylinder 111 is constant all the time during polishing. The force of the profiling mold 112 pressing on the steel rail parent metal is constant, so that the profiling mold 112 is prevented from damaging the steel rail parent metal during overturning.
As shown in fig. 2 and 3: the grinding frame 107 is provided with a linear guide rail.
As shown in fig. 2 and 3: the rail top grinding wheel adjusting and compensating mechanism 108 is provided with a sliding block, and the rail top grinding wheel adjusting and compensating mechanism 108 can move on the linear guide rail of the grinding frame 107 through the sliding block.
As shown in fig. 2 and 3: the grinding frame 107 is provided with a swing cylinder 109, and the rail top grinding wheel adjusting and compensating mechanism 108 is pushed to move on the grinding frame 107 through the swing cylinder 109. The function of reciprocating grinding of the rail top grinding wheel in the detection position and weld flash of the rail top parent metal of the steel rail 104 to be ground is realized.
As shown in fig. 2 and 3: the rail top grinding wheel adjusting and compensating mechanism 108 drives a screw nut to drive through a servo motor and a speed reducer, so that the rail top grinding wheel moves up and down, and abrasion compensation of the grinding wheel is realized.
As shown in fig. 2 and 3: the grinding motor on the rail top grinding wheel adjusting and compensating mechanism 108 can determine the relative position of the grinding wheel and the steel rail parent metal through current feedback, and the relative position is fed back to a PLC control program, so that the feeding amount of the grinding wheel is automatically adjusted, and the automatic feeding function of the grinding wheel is realized.
As shown in fig. 2, 3, 11, and 12: the slewing drive member (servo motor + speed reducer + pinion) 105 is mounted on the support 2.
As shown in fig. 2, 3, 11, and 12: the rotary driving part 105 drives a large gear on the external tooth rotary support through a small gear, and further drives the rotary support assembly 106 to perform overturning motion.
As shown in fig. 2, 3, 4 and 5: the grinding machine frame 107, the rail top grinding wheel adjusting and compensating mechanism 108, the cylinder lifting frame 110, the lifting cylinder 111 and the profiling explorator 112 which are arranged on the rotary support assembly 106 are driven by the rotary driving part 105 to perform overturning motion, and can be turned over by 90 degrees from the vertical direction to realize the grinding motion of welding seams and weld flashes on the two sides of the rail top and the rail top.
As shown in fig. 1, 2, 3, 4 and 5: the rail top profiling grinding device 1 is arranged on the upper side of the rail 104 to be ground. After the steel rail 104 to be polished enters the equipment along the base roller line, the base trolley 4 moves to move the polishing device to the vicinity of the welding line, and the compression air cylinders 102 and the centering clamping and positioning devices 2 on the two sides are started to clamp and center the steel rails on the two ends of the welding line. The lifting cylinder 110 in the rail-top profiling and polishing device 1 acts to push the polishing frame 107, so that the profiling explorator 111 always presses on the rail parent metal. The servo motor in the rotary driving part 105 drives the pinion and the external tooth rotary support in the rotary support assembly 106, so that the rotary support assembly 106 is turned 90 degrees to one side surface of the rail top of the rail 104 to be polished, and the rail top polishing grinding wheel adjusting and compensating mechanism 108 starts to automatically detect positions and automatically perform profiling polishing.
The preferred embodiments of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art, and all such changes are within the scope of the novel protection of the present application.
Claims (6)
1. An intelligent automatic profile modeling rail grinding device which characterized in that: the rail head profiling and polishing device comprises a base trolley (4), wherein two first supports (2) are arranged on the base trolley (4), a rail head profiling and polishing device (1) is arranged on the two first supports (2), each support is further provided with a clamping centering and positioning device (3), two clamping centering and positioning devices (3) are respectively arranged in the two side directions of the rail head profiling and polishing device (1), the base trolley (4) is placed on an equipment foundation rail, and the base trolley (4) moves along the equipment foundation rail;
the rail top profiling polishing device (1) comprises a polishing rack (107), two ends of the polishing rack (107) are connected with air cylinder lifting frames (110), sliding blocks are arranged on the air cylinder lifting frames (110), and linear guide rails matched with the sliding blocks are arranged on the rotary support assemblies (106);
the rotary bracket assembly (106) is provided with a single-acting air cylinder (101); a lifting cylinder (111) is arranged on the rotary support assembly (106), and the lifting cylinder (111) is fixedly connected with the cylinder lifting frame (110); the slewing bracket assembly (106) comprises an external gear slewing bearing, and the external gear slewing bearing is arranged on the slewing support (103); a profiling explorator (112) is arranged on the lower side of the polishing rack (107); the front end of a reversing valve of a control valve of the lifting cylinder (111) is connected with a pneumatic proportional pressure reducing valve; the polishing machine frame (107) is provided with a linear guide rail along the length direction, a first support (2) of the rail top polishing grinding wheel adjusting and compensating mechanism (108) is provided with a sliding block, and the sliding block is sleeved on the linear guide rail of the polishing machine frame (107); a rail top grinding wheel adjusting and compensating mechanism (108) is movably sleeved on the linear guide rail of the grinding frame (107) through a sliding block;
the rail top grinding wheel adjusting and compensating mechanism (108) comprises a first servo motor (1081), a first speed reducer (1082), a coupler (1083), a screw nut transmission pair (1084), a second support (1085), a grinding motor (1086), a grinding wheel connecting flange (1087), a grinding wheel (1088), a linear guide rail slide block (1089) combination and a grinding motor mounting plate (10810); the screw rod in the first servo motor (1081), the first speed reducer (1082) and the screw rod nut transmission pair (1084) is arranged on the second support (1085); the linear guide rail in the linear guide rail sliding block (1089) is arranged on the second support (1085); the sliding blocks in the linear guide rail sliding blocks (1089) are arranged on the polishing motor mounting plate (10810); the nut in the screw nut transmission pair (1084) is arranged on the polishing motor mounting plate (10810); the polishing motor (1086) is mounted on a polishing motor mounting plate (10810); the grinding wheel (1088) is mounted on the grinding motor (1086) through a wheel coupling flange (1087).
2. The intelligent automatic profiling rail grinding device as claimed in claim 1, wherein: the clamping centering positioning device (3) comprises a left clamping plate (301) and a right clamping plate (303), wherein the left clamping plate (301) and the right clamping plate (303) are respectively arranged on a base (305), gears are arranged on the left clamping plate (301) and the right clamping plate (303), the left clamping plate (301) and the right clamping plate (303) are meshed with each other through the gears, and an air cylinder (304) is connected to the bottom of at least one of the left clamping plate (301) and the right clamping plate (303).
3. The intelligent automatic profiling rail grinding device as claimed in claim 2, wherein: clamping blocks (302) are arranged on the inner sides of the upper parts of the left clamping plate (301) and the right clamping plate (303), and the clamping blocks (302) are concave; the piston rod of the air cylinder (304) is connected with the left clamping plate (301), and the cylinder body of the air cylinder (304) is arranged on the first support (2); the base (305) is arranged on the first support (2); a roller (306) is mounted on the base (305).
4. The intelligent automatic profiling rail grinding device as claimed in claim 1, wherein: and a swing air cylinder (109) is arranged on the grinding frame (107), an air cylinder (304) piston rod of the swing air cylinder (109) is connected with a first support (2) in the rail top grinding wheel adjusting and compensating mechanism (108), and the rail top grinding wheel adjusting and compensating mechanism (108) is pushed to move on the grinding frame (107) through the swing air cylinder (109).
5. The intelligent automatic profiling rail grinding device as claimed in claim 1, wherein: the rotary driving part (105) comprises two bearing blocks (1053), a synchronizing shaft (1055) is connected between the two bearing blocks (1053), two pinions (1054) are further fixed on the synchronizing shaft (1055), and the second servo motor (1051) is connected with one bearing block (1053) through a second speed reducer (1052).
6. The intelligent automatic profiling rail grinding device as claimed in claim 5, wherein: the grinding machine frame (107), the rail top grinding wheel adjusting and compensating mechanism (108), the air cylinder lifting frame (110), the lifting air cylinder (111) and the profiling explorator (112) are arranged on the rotary support assembly (106) and are driven by the rotary driving part (105) to perform overturning motion at the same time; a rotary support (103) is arranged on each first support (2), and a compression cylinder (102) is arranged on each rotary support (103).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711104486.3A CN107675568B (en) | 2017-11-10 | 2017-11-10 | Intelligent automatic profiling and polishing device for rail tops of steel rails |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711104486.3A CN107675568B (en) | 2017-11-10 | 2017-11-10 | Intelligent automatic profiling and polishing device for rail tops of steel rails |
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| CN107675568B true CN107675568B (en) | 2023-09-12 |
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| CN108673280B (en) * | 2018-06-20 | 2023-12-29 | 德州富蓝德过滤器有限公司 | Basket bonding wire polishing equipment |
| CN109056435B (en) * | 2018-09-21 | 2020-11-06 | 江苏金洋机械有限公司 | Automatic polishing system for maintaining high-speed rail, motor car and subway steel rail |
| CN109596372B (en) * | 2018-12-17 | 2023-09-22 | 西南交通大学 | Single grinding head steel rail grinding experimental device |
| CN112548684B (en) * | 2020-03-31 | 2022-05-17 | 中车青岛四方机车车辆股份有限公司 | Welding and grinding process for three-side intersection position |
| CN113481769B (en) * | 2021-06-29 | 2023-03-14 | 苏州睿友智能装备有限公司 | Intelligent steel rail profile grinding equipment |
| CN115351677A (en) * | 2022-09-16 | 2022-11-18 | 上海星吉仪金属工具有限公司 | Full-automatic hammer handle contour machining and polishing equipment |
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