CN211340252U

CN211340252U - Steel rail polishing unit

Info

Publication number: CN211340252U
Application number: CN201922054567.8U
Authority: CN
Inventors: 罗旦; 王�华; 郭平; 余高翔; 张东方
Original assignee: Zhuzhou CSR Times Electric Co Ltd
Current assignee: Zhuzhou CRRC Times Electric Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-08-25
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a rail unit of polishing, the cylinder mount pad on sideslip mechanism one end and the guide pin bushing mounting panel is connected, and the other end is installed in the longeron of frame. Two unit framves of polishing set up and are fixed in guide pin bushing mounting panel lower part each other relatively, and the motor of polishing sets up between two unit framves of polishing. The polishing unit frame is connected with the lower connecting seat of the guide pillar through a deflection pin shaft. A deflection mechanism is arranged in the polishing unit frame, one end of the deflection mechanism is fixed with the polishing unit frame, and the other end of the deflection mechanism drives a deflection pin shaft through a connecting block. The connecting seat is arranged on the upper portion of the polishing motor on the guide pillar, and a pressing guide pillar is arranged between the upper connecting seat and the lower connecting seat of the guide pillar. The lower pressing guide sleeve is sleeved on the lower pressing guide column and fixed outside the polishing motor. One end of the pressing mechanism is fixed on the lower guide pillar connecting seat or the upper guide pillar connecting seat, and the other end of the pressing mechanism is connected with the pressing guide sleeve. The utility model discloses it is unreasonable to solve current rail unit structural design that polishes, and the accuracy nature of action is not enough, polishes the limited technical problem of envelope angle.

Description

Steel rail polishing unit

Technical Field

The utility model belongs to the technical field of railway engineering machine tool technique and specifically relates to a be applied to unit of polishing of rail train of polishing.

Background

The grinding trolley is an actuating mechanism for grinding operation, is also a key component and a core operation structure of the steel rail grinding train, and has important position and function on the grinding train. Meanwhile, the grinding action, quality, efficiency, the advancement of the grinding process and the like required by the grinding train are finally embodied by the grinding trolley. The most central part of the grinding trolley is the grinding unit, and the grinding unit directly acts on the steel rail to realize grinding operation, so that the structural design, the reasonability and the action accuracy of the grinding unit are very important.

At present, the steel rail grinding wagon used in China mainly comprises the following grinding units in structural forms.

The first is a PGM-48 type sander grinding unit. According to the polishing unit with the structure, each polishing trolley is provided with four polishing units, two polishing motors are arranged in each polishing unit, each motor is installed between two guide pillars and guide sleeves, and the polishing operation is realized by driving the motors to move up and down through the pressing oil cylinder. In addition, the deflection shaft is matched with the bearing in an installing mode, and a polishing unit consisting of two motors drives a polishing unit frame through a deflection oil cylinder so as to realize integral deflection. The defects are mainly as follows:

(1) only a pressing and deflecting mechanism is arranged, and a transverse moving mechanism is not arranged, so that the grinding of the turnout line cannot be carried out;

(2) two grinding motors are arranged on the same unit frame, the integral grinding enveloping angle is limited, and the full coverage of the rail surface can be formed only by grinding for many times;

(3) each grinding motor is arranged between the two guide columns and the guide sleeve, the stress of the motors is unbalanced, and the rigidity of the whole structure of the grinding unit is relatively weak;

(4) the polishing unit is driven by a deflection oil cylinder, so that the stress on the left side and the right side of the polishing unit is unbalanced easily.

The second type is a grinding unit of the grinding wagon which adopts a parallelogram mechanism pneumatic pressing structure design. The polishing unit in the form adopts a non-guide type pressing structure, and the polishing unit comprises two polishing motors, two groups of deflection oil cylinders, a beam frame and the like. In the prior art, four patents CN102758390B, CN203729166U, CN203729167U and CN203729169U all relate to this type of sharpening unit. The defects are mainly as follows:

(1) the polishing unit has a complex and heavy structure;

(2) the frame structure is complex, and the maintenance of the motor is very difficult;

(3) the polishing motor is a motor with a fan, and under a severe polishing operation environment, the polishing motor is easy to enter dust and scrap iron to be damaged;

(4) the polishing unit is not designed with a transverse moving mechanism.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a rail unit of polishing to it is unreasonable to solve current rail unit structural design of polishing, and the accuracy nature of action is not enough, and polish the limited technical problem of envelope angle.

In order to realize the above utility model purpose, the utility model particularly provides a rail polishing unit's technical implementation scheme, rail polishing unit installs on the frame of the dolly of polishing to include: guide pin bushing mounting panel, guide pillar upper junction seat, the unit frame of polishing, guide pillar lower junction seat, sideslip guide pillar, sideslip mechanism, pushing mechanism and the motor of polishing. The two guide pillar mounting seats are arranged opposite to each other and fixed on a frame of the polishing trolley, and the transverse moving guide pillar is connected between the two longitudinal beams of the frame. The transverse guide pillar is sleeved with a transverse guide sleeve, and the transverse guide sleeve is fixed on the guide sleeve mounting plate simultaneously. One end of the transverse moving mechanism is connected with the air cylinder mounting seat on the guide sleeve mounting plate, and the other end of the transverse moving mechanism is mounted on the longitudinal beam. Two polishing unit frames with hollow interiors are arranged oppositely and fixed at the lower part of the guide sleeve mounting plate, and the polishing motor is arranged between the two polishing unit frames. And the lower connecting seat of the guide post is movably connected between the two polishing unit frames through a deflection pin shaft. And the polishing unit frame is connected with the lower guide pillar connecting seat through a deflection pin shaft. And a deflection mechanism is arranged in the polishing unit frame, one end of the deflection mechanism is fixed with the polishing unit frame, and the other end of the deflection mechanism drives a deflection pin shaft through a connecting block. The upper guide pillar connecting seat is arranged on the upper portion of the polishing motor, and a pressing guide pillar is arranged between the upper guide pillar connecting seat and the lower guide pillar connecting seat. The pressing guide post is sleeved with a pressing guide sleeve, and the pressing guide sleeve is fixed outside the polishing motor. One end of the pressing mechanism is fixed on the lower guide pillar connecting seat or the upper guide pillar connecting seat, and the other end of the pressing mechanism is connected with the pressing guide sleeve.

Further, the steel rail polishing unit further comprises a grinding wheel connecting disc and a polishing grinding wheel, the grinding wheel connecting disc is connected with a rotating shaft of the polishing motor, and the polishing grinding wheel is fixed on the grinding wheel connecting disc.

Furthermore, the two transverse moving guide posts are parallel to each other and symmetrically connected between the two guide post mounting seats, and the transverse moving mechanism is arranged between the two transverse moving guide posts. The guide sleeve mounting plate can be directly driven by the movement of the transverse moving mechanism, so that the transverse moving guide sleeve is driven to move on the transverse moving guide pillar, and finally, the polishing motor is driven by the polishing unit frame to move, so that polishing of different positions on the surface of the steel rail is realized.

Furthermore, the polishing unit frame comprises two unit plates which are parallel to each other and are arranged oppositely, a bolt shaft sleeve is arranged on each unit plate, and the two unit plates are fastened in the bolt shaft sleeve through bolts to realize connection and fixation.

Furthermore, two deflection mechanisms are respectively arranged in the two polishing unit frames, one end of the connecting block is hinged with one end of each deflection mechanism, and the other end of the connecting block is fixedly connected with the deflection pin shaft. The deflection mechanism drives the deflection hinge pin through the connecting block, and then drives the polishing motor to move through the lower guide pillar connecting seat, the upper guide pillar connecting seat, the lower guide pillar and the lower guide sleeve, so that deflection control of the polishing motor is realized.

Furthermore, four pressing guide pillars are symmetrically arranged on the periphery of the polishing motor along the center, and two pressing mechanisms are respectively arranged on two opposite sides of the polishing motor and located between the two pressing guide pillars. The lower end of the pressing mechanism is fixed on the guide pillar lower connecting seat, and the upper end of the pressing mechanism is connected with the pressing guide sleeve. The up-and-down movement of the pressing mechanism drives the pressing guide sleeve to move on the pressing guide post, so that the grinding motor can move up and down, and the grinding and non-grinding of the surface of the steel rail can be completed.

Furthermore, one side of the polishing motor, which moves transversely along the polishing unit frame, is provided with two downward pressing guide pillars, and the downward pressing mechanism is arranged between the two downward pressing guide pillars. The polishing motor is provided with a back connecting plate along the other side of the transverse movement of the polishing unit frame, and the back connecting plate is connected with the guide pillar upper connecting seat and the guide pillar lower connecting seat respectively. The lower end of the pressing mechanism is fixed on the guide pillar lower connecting seat, and the upper end of the pressing mechanism is connected with the pressing guide sleeve. The up-and-down movement of the pressing mechanism drives the pressing guide sleeve to move on the pressing guide post, so that the grinding motor can move up and down, and the grinding and non-grinding of the surface of the steel rail can be completed.

Furthermore, a shaft hole is formed in the polishing unit frame, a deflection shaft fixing seat is fixed in the shaft hole, and the deflection hinge pin is hinged in the deflection shaft fixing seat. One end of the connecting block is fixedly connected with the shaft body of the deflection pin shaft, and the shaft neck of the deflection pin shaft is fixedly connected with the lower guide pillar connecting seat.

Furthermore, the shaft neck of the deflection pin shaft adopts a square pin head structure and is press-mounted in a square hole of the guide pillar lower connecting seat in an interference manner. The shaft body of the deflection pin shaft is of a cylindrical structure, the part of the deflection pin shaft fixed with the connecting block is of a flat square structure, and the shaft tail of the deflection pin shaft is of a concentric cylindrical structure with the diameter smaller than that of the shaft body.

Furthermore, the deflection mechanism adopts a deflection oil cylinder, the transverse moving mechanism adopts a transverse moving air cylinder, and the pressing mechanism adopts a pressing oil cylinder.

Furthermore, the grinding motor adopts an aluminum shell fanless motor structure.

Furthermore, the deflection mechanism adopts a deflection oil cylinder with a displacement sensor mechanism.

Through implementing the aforesaid the utility model provides a rail unit of polishing's technical scheme has following beneficial effect:

(1) the utility model discloses rail polishing unit, including sideslip mechanism, pushing down mechanism and deflection mechanism, structural design is reasonable, and the action accuracy is high, and the envelope angle of whole polishing is unrestricted, can form the full coverage of rail face;

(2) the utility model discloses rail polishing unit adopts four parallel guide pillars, two and pushes down the hydro-cylinder mechanism, compares with original two guide pillars, single hydro-cylinder mechanism, can effectively solve traditional polishing unit and motor vibration too big, two point atress are unbalanced, the lower technical problem of structural rigidity;

(3) in the rail polishing unit, the deflection mechanism adopts a structure that the double deflection oil cylinders are provided with the displacement sensors, so that the angle deflection is more stable, the response speed is higher, and the risk of failure of the single deflection shaft oil cylinder can be effectively avoided;

(4) the steel rail polishing unit adopts the interference press-fitting design of the square hole of the deflection pin shaft, can effectively avoid motor vibration caused by the gap problem of the traditional bearing mounting mode, and can greatly improve the polishing quality;

(5) the utility model discloses rail polishing unit adopts the design of sideslip cylinder, compares in sideslip hydro-cylinder mode, has better flexibility and stronger anti-falling rail ability, can stabilize vehicle and walk capable, can effectively promote rail polishing quality when realizing polishing angle covers on a large scale;

(6) the utility model discloses rail polishing unit, the motor of polishing adopt aluminium system shell fanless design, can realize polishing unit's lightweight design, can effectively avoid the influence of iron fillings dust to the motor simultaneously, have promoted motor life;

(7) the utility model discloses rail unit of polishing adopts open structural design, can effectively promote the maintenance performance of polishing unit and polishing motor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

Fig. 1 is a schematic perspective view of a rail grinding unit according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a rail grinding unit according to another embodiment of the present invention;

fig. 3 is a schematic perspective view of a rail grinding unit according to an embodiment of the present invention at a third viewing angle;

FIG. 4 is a schematic view of the internal structure of a grinding unit frame according to an embodiment of the rail grinding unit of the present invention;

fig. 5 is a schematic sectional view of a connecting portion of a deflection pin according to an embodiment of the rail grinding unit of the present invention;

fig. 6 is a schematic perspective view of a deflecting pin shaft according to an embodiment of the rail grinding unit of the present invention;

fig. 7 is a schematic perspective view of another embodiment of the rail grinding unit according to the present invention;

fig. 8 is a schematic perspective view of a third embodiment of a rail grinding unit according to the present invention at a back view;

FIG. 9 is a schematic view of an installation structure of a rail grinding unit according to an embodiment of the present invention;

in the figure: 1-guide bush mounting plate, 2-guide bush upper connecting seat, 3-deflection mechanism, 4-grinding unit holder, 5-guide bush lower connecting seat, 6-grinding wheel connecting plate, 7-deflection pin, 71-journal, 72-shaft body, 73-shaft tail, 8-grinding wheel, 9-transverse guide bush, 10-transverse guide bush, 11-transverse mechanism, 12-guide bush mounting seat, 13-press guide bush, 14-press mechanism, 15-press guide bush, 16-grinding motor, 17-connecting block, 18-bolt shaft sleeve, 19-deflection shaft fixing seat, 20-cylinder mounting seat, 21-bolt, 22-back connecting plate, 23-unit plate, 24-shaft hole, 30-carriage, 40-longitudinal beam, 50-running wheels, 60-steel rails and 100-steel rail grinding units.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 9, the present invention provides a rail polishing unit according to an embodiment of the present invention, and the present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in fig. 1 to 9, in an embodiment of a rail grinding unit 100, the rail grinding unit 100 is mounted on a carriage 30 of a grinding carriage, and specifically includes: the device comprises a guide sleeve mounting plate 1, a guide post upper connecting seat 2, a deflection mechanism 3, a polishing unit frame 4, a guide post lower connecting seat 5, a deflection pin 7, a transverse guide post 9, a transverse guide sleeve 10, a transverse mechanism 11, a guide post mounting seat 12, a lower guide sleeve 13, a lower pressing mechanism 14, a lower pressing guide post 15, a polishing motor 16 and a connecting block 17. The two guide post mounting seats 12 are respectively arranged opposite to each other and fixed on two longitudinal beams 40 of the frame 30, and the transverse guide post 9 is connected between the two guide post mounting seats 12. The traversing guide post 9 can also be mounted directly between two longitudinal beams 40. The transverse guide pillar 9 is sleeved with a transverse guide sleeve 10, and the transverse guide sleeve 10 is fixed on the guide sleeve mounting plate 1. One end of the traversing mechanism 11 is connected with the cylinder mounting seat 20 on the guide sleeve mounting plate 1, and the other end is mounted on the guide pillar mounting seat 12. Two polishing unit frames 4 with hollow interiors are arranged opposite to each other and fixed at the lower part of the guide bush mounting plate 1, and a polishing motor 16 is arranged between the two polishing unit frames 4. The polishing unit frames 4 are connected with the guide pillar lower connecting seats 5 through the deflection pin shafts 7 (the guide pillar lower connecting seats 5 are movably connected between the bottoms of the two polishing unit frames 4 through the deflection pin shafts 7). The polishing unit frame 4 is internally provided with a deflection mechanism 3, one end of the deflection mechanism 3 is fixed with the polishing unit frame 4, and the other end of the deflection mechanism drives a deflection pin 7 through a connecting block 17. The guide post upper connecting seat 2 is arranged on the upper portion of the polishing motor 16, and a pressing guide post 15 is arranged between the guide post upper connecting seat 2 and the guide post lower connecting seat 5. The lower pressing guide sleeve 13 is sleeved on the lower pressing guide post 15, and the lower pressing guide sleeve 13 is fixed outside the polishing motor 16. One end of the pressing mechanism 14 is fixed to the guide post lower connecting seat 5 (as shown in fig. 7, one end of the pressing mechanism 14 can also be fixed to the guide post upper connecting seat 2, and it should be noted that the problem of dust and iron dust accumulation and pollution caused by the upside-down mounting of the pressing mechanism 14 at this time), and the other end is connected with the pressing guide sleeve 13 (the polishing motor 16 is connected with the bolt hole on the pressing guide sleeve 13 through the bolt, so that the up-and-down movement of the pressing mechanism 14 directly drives the pressing guide sleeve 13 to move on the pressing guide post 15, thereby realizing the up-and-down movement of the polishing. The steel rail polishing unit 100 further comprises a grinding wheel connecting disc 6 and a polishing grinding wheel 8, the grinding wheel connecting disc 6 is connected with a rotating shaft of the polishing motor 16, and the polishing grinding wheel 8 is fixed on the grinding wheel connecting disc 6. The utility model discloses rail unit 100 of polishing that embodiment described possesses sideslip, pushes down and deflection mechanism, can carry out polishing of the positive line of rail and circuits such as switch.

As shown in fig. 1, two traverse guide posts 9 are further connected in parallel and symmetrically between two guide post mounting seats 12, and a traverse mechanism 11 is disposed between the two traverse guide posts 9. The guide sleeve mounting plate 1 can be directly driven by the movement of the transverse moving mechanism 11, so that the transverse moving guide sleeve 10 is driven to move on the transverse moving guide post 9 along the L direction shown in the attached drawing 1, and finally the polishing motor 16 is driven to move through the polishing unit frame 4, so that the polishing of different positions on the surface of the steel rail 50 is realized. As a specific embodiment of the present invention, the traversing mechanism 11 is a traversing cylinder. Compare in sideslip hydro-cylinder form, the structural design flexibility of sideslip cylinder is stronger, has stronger anti-falling rail ability, can stabilize vehicle and walk, when realizing the angle of polishing covering on a large scale, can effectively promote the rail quality of polishing.

The polishing unit frame 4 further comprises two unit plates 23 which are parallel to each other and are arranged oppositely, a bolt shaft sleeve 18 is arranged on each unit plate 23, the two unit plates 23 are fastened in the bolt shaft sleeve 18 through bolts 21 to be connected and fixed, the connection is stable and deformation-free in this way, and the design of a polishing unit frame welding tool is avoided, as shown in the attached drawing 4. The two deflection mechanisms 3 are respectively arranged in the two polishing unit frames 4, one end of the connecting block 17 is hinged with one end of the deflection mechanism 3, and the other end of the connecting block is fixedly connected with the deflection pin shaft 7. The deflection mechanism 3 drives the deflection pin 7 through the connecting block 17, and then drives the grinding motor 16 to move along the W direction shown in the attached drawing 1 through the guide pillar lower connecting seat 5, the guide pillar upper connecting seat 2, the lower pressing guide pillar 15 and the lower pressing guide sleeve 13, so that the deflection control of the grinding motor 16 is realized. As the utility model relates to a concrete embodiment of preferred, deflection mechanism 3 further adopts the hydro-cylinder that deflects of taking displacement sensor mechanism, and the angle deflects more steadily, and response speed is faster, can effectively avoid the risk of list rotation axis hydro-cylinder inefficacy simultaneously. It should be noted that, one deflection oil cylinder may be adopted, and the problem of synchronization of two deflection oil cylinders does not need to be considered when one deflection oil cylinder is driven, but the deflection stress of the rail grinding unit is more balanced when the two deflection oil cylinders are driven.

In this embodiment, four pressing guide posts 15 are further symmetrically arranged on the periphery of the grinding motor 16 along the center, and two pressing mechanisms 14 are respectively arranged on two opposite sides of the grinding motor 16 and between the two pressing guide posts 15. The lower end of the pressing mechanism 14 is fixed on the guide post lower connecting seat 5, and the upper end of the pressing mechanism 14 is connected with the pressing guide sleeve 13. The up-and-down movement of the pressing mechanism 14 drives the pressing guide sleeve 13 to move on the pressing guide post 15 along the direction H as shown in fig. 1, so that the grinding motor 16 moves up and down to complete the grinding and non-grinding lifting of the surface of the steel rail 50. As a specific embodiment of the present invention, the pressing mechanism 14 further adopts a pressing cylinder. This embodiment adopts the structural design of four parallel guide pillars, two push down hydro-cylinders, can effectively solve traditional rail unit of polishing and the motor vibration of polishing too big, the lower technical problem of structural rigidity, can promote the quality of polishing betterly.

As another specific embodiment of the present invention, different from the four parallel guide pillars and the double-pressing-down cylinder, the two pressing-down guide pillars 15 at the back of the rail polishing unit 100 are replaced by a connecting plate structure (i.e., a back connecting plate 22), which can be used as the position for installing the motor junction box. The back connecting plate 22 is connected with the guide post upper connecting seat 2 and the guide post lower connecting seat 5 through bolts respectively, only two downward pressing guide posts 15 are adopted on the front side, and a downward pressing oil cylinder is arranged between the two downward pressing guide posts 15, so that the position for installing the motor junction box can be reserved on the back side. As shown in fig. 8, two hold-down guide posts 15 are further provided at a side of the traverse of the grinding motor 16 along the grinding unit frame 4, and the hold-down mechanism 14 is provided between the two hold-down guide posts 15. The lower end of the pressing mechanism 14 is fixed on the guide post lower connecting seat 5, and the upper end of the pressing mechanism 14 is connected with the pressing guide sleeve 13. The up-and-down movement of the pressing mechanism 14 drives the pressing guide sleeve 13 to move on the pressing guide post 15, so that the grinding motor 16 moves up and down, and the grinding and non-grinding of the surface of the steel rail 50 are completed. The other side of the polishing motor 16, which moves transversely along the polishing unit frame 4, is provided with a back connecting plate 22, and the back connecting plate 22 is connected with the guide pillar upper connecting seat 2 and the guide pillar lower connecting seat 5 respectively. The lower mounting seat of the pressing oil cylinder 14 is fixed on the guide post lower connecting seat 5, so that the lower end of the pressing mechanism 14 is fixedly connected with the guide post lower connecting seat 5. The upper end of the pressing mechanism 14 is connected with the pressing guide sleeve 13. Connecting seat 2, connecting seat 5 under the guide pillar, push down guide pillar 15 on the guide pillar to and back connecting plate 22 link firmly together, drive through the up-and-down motion of pushing down mechanism 14 and push down guide pin bushing 13 and follow the motion as shown in the H direction of attached figure 1 on two push down guide pillars 15 to realize 16 reciprocating of polishing motor, in order to accomplish the promotion to the polishing and the non-state of polishing on the rail surface. As a specific embodiment of the present invention, the pressing mechanism 14 further adopts a pressing cylinder.

As shown in fig. 5, the grinding unit frame 4 is provided with a shaft hole 24, the deflection shaft fixing seat 19 is fixed in the shaft hole 24, and the deflection pin 7 is hinged in the deflection shaft fixing seat 19. One end of the connecting block 17 is fixedly connected with a shaft body 72 of the deflection pin 7, and a shaft neck 71 of the deflection pin 7 is fixedly connected with the lower guide pillar connecting seat 5. As shown in fig. 6, the shaft neck 71 of the deflection pin 7 is formed by a square pin head structure and is press-fitted into a (square) mounting hole of the guide post lower connecting seat 5 by interference (other pin head structures may be used to limit the rotation of the pin head in the mounting hole). The shaft body 72 of the deflecting pin 7 is a cylindrical structure, the part of the deflecting pin 7 fixed with the connecting block 17 adopts a flat square structure (other structures can also be adopted to limit the deflecting pin 7 to rotate in a hole fixed with the connecting block 17), and the shaft tail 73 of the deflecting pin 7 adopts a concentric cylindrical structure with a diameter smaller than that of the shaft body 72. The deflecting pin 7 can be fixed by adopting a nut-washer, rivet, pin and other connection modes. In the conventional steel rail grinding unit, the deflection shaft is basically connected and deflected by using a bearing, but the connection between the bearing and the deflection shaft always has a gap of more than two wires, and the gap can amplify the vibration effect during grinding to influence the grinding quality. The utility model discloses rail unit of polishing of embodiment description does not adopt the bearing that deflects, but adopts the design of the square round pin head of 7 areas of the round pin axle that deflects, and connecting seat 5 also has the square hole under the guide pillar, gets into the square hole of connecting seat 5 under the guide pillar through the little sufficient pressure equipment of the round pin axle 7 that deflects that will take the square round pin head, has avoided the joint space to the vibration problem that the structure installation clearance introduced when further controlling was polished has effectively avoided the quality of polishing influence that the vibration brought.

Traditional rail unit of polishing, the purpose of the design of motor area fan of polishing is in order to accelerate motor cooling, but because take the fan to adsorb into thereby leading to the motor of polishing inefficacy of a large amount of dust iron fillings of polishing very easily. The utility model discloses in the embodiment, grinding motor 16 adopts aluminium system shell fanless motor structure, has effectively realized the lightweight design of rail unit of polishing, and grinding motor's self structural design makes its self-cooling effect better, has effectively avoided iron fillings, dust to grinding motor's influence simultaneously, has promoted grinding motor's life by a wide margin.

The utility model discloses rail unit 100 of polishing that embodiment described has adopted open structural design, when needs maintain the maintenance to grinding motor 16 and change, only needs to deflect certain angle with grinding motor 16 towards the outside of rail, demolishs connecting seat 2 backs on the guide pillar again, can dismantle grinding motor 16 and maintain, has realized swift convenient grinding motor and has maintained.

It should be particularly noted that, on the basis of reasonable structural design and arrangement and reliable process machining and assembly, the two, three or four pressing guide posts 15 and the four pressing guide sleeves 13 can be selected, the stress is most balanced when the four pressing guide posts are selected (but the problem of motion synchronism needs to be solved), and the motor junction box can be conveniently installed when the two pressing guide posts are selected (but the problem of stress balance needs to be solved). The sideslip cylinder though also can adopt sideslip hydro-cylinder or sideslip electric jar to replace, pushes down the hydro-cylinder and does to adopt cylinder or electric jar to replace with the hydro-cylinder that deflects, but whole operation effect of polishing can be inferior to the utility model discloses the preferred technical scheme that above-mentioned embodiment provided.

The specific embodiment of the utility model provides a novel rail grinding wagon grinding unit device structure, which has the design of pressing, deflecting and traversing mechanisms, can meet the grinding requirement of the railway main track and can also carry out turnout grinding; the posture of the polishing motor can be independently controlled, the polishing angle range is wide, the arrangement is flexible, and the full coverage of the rail surface can be formed; the parallel guide pillar and the pressing oil cylinder structure can effectively solve the technical problems of low rigidity, poor stability and the like of the traditional steel rail polishing unit; the deflection structure design effectively controls the vibration problem caused by the structure installation clearance during grinding, and avoids the influence of vibration on the grinding quality of the steel rail.

Through implementing the utility model discloses the technical scheme of the rail unit of polishing that concrete embodiment described can produce following technological effect:

(1) the steel rail polishing unit described in the embodiment of the utility model comprises a transverse moving mechanism, a pressing mechanism and a deflection mechanism, has reasonable structural design, high action accuracy and unlimited overall polishing envelope angle, and can form full coverage of a rail surface;

(2) the rail polishing unit described in the embodiment of the utility model adopts four parallel guide posts and a double-pressing oil cylinder mechanism, and compared with the original double-guide post and single-oil cylinder mechanism, the rail polishing unit can effectively solve the technical problems that the traditional polishing unit and a motor have overlarge vibration, unbalanced two-point stress and lower structural rigidity;

(3) in the rail polishing unit described in the embodiment of the utility model, the deflection mechanism adopts a structure that the double deflection oil cylinders are provided with the displacement sensors, so that the angle deflection is more stable, the response speed is higher, and the risk of failure of the oil cylinder with a single deflection shaft can be effectively avoided;

(4) the steel rail polishing unit described in the embodiment of the utility model adopts the interference press-fitting design of the square hole of the deflection pin shaft, so that the motor vibration caused by the gap problem of the traditional bearing installation mode can be effectively avoided, and the polishing quality can be greatly improved;

(5) the rail polishing unit described in the embodiment of the utility model adopts the design of the transverse moving cylinder, and compared with the transverse moving cylinder mode, the rail polishing unit has better flexibility and stronger rail falling prevention capability, can stabilize the running of the vehicle, and can effectively improve the rail polishing quality while realizing the large-range coverage of the polishing angle;

(6) the steel rail polishing unit described by the specific embodiment of the utility model has the advantages that the polishing motor adopts the fan-free design of the aluminum shell, the lightweight design of the polishing unit can be realized, meanwhile, the influence of iron dust on the motor can be effectively avoided, and the service life of the motor is prolonged;

(7) the utility model discloses the rail unit of polishing of embodiment description adopts open structural design, can effectively promote the maintenance performance of polishing unit and polishing motor.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. A rail grinding unit for mounting on a carriage (30) of a grinding carriage, comprising: the guide sleeve polishing device comprises a guide sleeve mounting plate (1), a guide post upper connecting seat (2), a polishing unit frame (4), a guide post lower connecting seat (5), a transverse guide post (9), a transverse moving mechanism (11), a pressing mechanism (14) and a polishing motor (16); the two guide post mounting seats (12) are arranged opposite to each other and fixed on a frame (30) of the polishing trolley, and the transverse guide post (9) is connected between two longitudinal beams (40) of the frame (30); the transverse guide pillar (9) is sleeved with a transverse guide sleeve (10), and the transverse guide sleeve (10) is simultaneously fixed on the guide sleeve mounting plate (1); one end of the transverse moving mechanism (11) is connected with the cylinder mounting seat (20) on the guide sleeve mounting plate (1), and the other end of the transverse moving mechanism is mounted on the longitudinal beam (40); the two hollow polishing unit frames (4) are arranged opposite to each other and fixed at the lower part of the guide sleeve mounting plate (1), and the polishing motor (16) is arranged between the two polishing unit frames (4); the lower guide post connecting seat (5) is movably connected between the two polishing unit frames (4) through a deflection pin shaft (7); a deflection mechanism (3) is arranged in the polishing unit frame (4), one end of the deflection mechanism (3) is fixed with the polishing unit frame (4), and the other end drives a deflection pin shaft (7) through a connecting block (17); the guide post upper connecting seat (2) is arranged at the upper part of the polishing motor (16), and a downward pressing guide post (15) is arranged between the guide post upper connecting seat (2) and the guide post lower connecting seat (5); a lower pressing guide sleeve (13) is sleeved on the lower pressing guide post (15), and the lower pressing guide sleeve (13) is fixed outside the polishing motor (16); one end of the pressing mechanism (14) is fixed on the guide post lower connecting seat (5) or the guide post upper connecting seat (2), and the other end is connected with the pressing guide sleeve (13).

2. A rail grinding unit according to claim 1, wherein: the steel rail polishing unit (100) further comprises a grinding wheel connecting disc (6) and a polishing grinding wheel (8), the grinding wheel connecting disc (6) is connected with a rotating shaft of a polishing motor (16), and the polishing grinding wheel (8) is fixed on the grinding wheel connecting disc (6).

3. A rail grinding unit according to claim 1 or 2, wherein: the two transverse guide posts (9) are parallel to each other and symmetrically connected between the two guide post mounting seats (12), and the transverse moving mechanism (11) is arranged between the two transverse guide posts (9); the guide sleeve mounting plate (1) can be directly driven by the movement of the transverse moving mechanism (11), so that the transverse moving guide sleeve (10) is driven to move on the transverse moving guide pillar (9), and finally, the polishing motor (16) is driven by the polishing unit frame (4) to move, so that polishing of different positions on the surface of the steel rail (60) is realized.

4. A rail grinding unit according to claim 3, wherein: the polishing unit frame (4) comprises two unit plates (23) which are parallel to each other and arranged oppositely, a bolt shaft sleeve (18) is arranged on each unit plate (23), and the two unit plates (23) are fastened in the bolt shaft sleeve (18) through bolts (21) to realize connection and fixation.

5. A rail grinding unit according to claim 1, 2 or 4, wherein: the two deflection mechanisms (3) are respectively arranged in the two polishing unit frames (4), one end of the connecting block (17) is hinged with one end of the deflection mechanism (3), and the other end of the connecting block is fixedly connected with the deflection pin shaft (7); the deflection mechanism (3) drives the deflection pin shaft (7) through the connecting block (17), and then drives the grinding motor (16) to move through the guide pillar lower connecting seat (5), the guide pillar upper connecting seat (2), the lower guide pillar (15) and the lower guide sleeve (13), so that deflection control of the grinding motor (16) is realized.

6. A rail grinding unit according to claim 5, wherein: four pressing guide posts (15) are symmetrically arranged on the periphery of the polishing motor (16) along the center, and two pressing mechanisms (14) are respectively arranged on two opposite sides of the polishing motor (16) and located between the two pressing guide posts (15); the lower end of the pressing mechanism (14) is fixed on the guide post lower connecting seat (5), and the upper end of the pressing mechanism (14) is connected with the pressing guide sleeve (13); the pressing guide sleeve (13) is driven to move on the pressing guide post (15) through the up-and-down movement of the pressing mechanism (14), so that the grinding motor (16) can move up and down, and the grinding and non-grinding state lifting of the surface of the steel rail (60) can be completed.

7. A rail grinding unit according to claim 5, wherein: two downward pressing guide posts (15) are arranged on one side of the polishing motor (16) which moves transversely along the polishing unit frame (4), and a downward pressing mechanism (14) is arranged between the two downward pressing guide posts (15); the other side of the polishing motor (16) which transversely moves along the polishing unit frame (4) is provided with a back connecting plate (22), and the back connecting plate (22) is respectively connected with the guide post upper connecting seat (2) and the guide post lower connecting seat (5); the lower end of the pressing mechanism (14) is fixed on the guide post lower connecting seat (5), and the upper end of the pressing mechanism (14) is connected with the pressing guide sleeve (13); the pressing guide sleeve (13) is driven to move on the pressing guide post (15) through the up-and-down movement of the pressing mechanism (14), so that the grinding motor (16) can move up and down, and the grinding and non-grinding state lifting of the surface of the steel rail (60) can be completed.

8. A rail grinding unit according to claim 1, 2, 4, 6 or 7 wherein: the polishing unit frame (4) is provided with a shaft hole (24), a deflection shaft fixing seat (19) is fixed in the shaft hole (24), and the deflection pin shaft (7) is hinged in the deflection shaft fixing seat (19); one end of the connecting block (17) is fixedly connected with a shaft body (72) of the deflection pin shaft (7), and a shaft neck (71) of the deflection pin shaft (7) is fixedly connected with the lower guide pillar connecting seat (5).

9. A rail grinding unit according to claim 8, wherein: the shaft neck (71) of the deflection pin shaft (7) adopts a square pin head structure and is press-mounted in a square hole of the guide pillar lower connecting seat (5) in an interference manner; the shaft body (72) of the deflection pin shaft (7) is of a cylindrical structure, the part of the deflection pin shaft, which is fixed with the connecting block (17), is of a flat square structure, and the shaft tail (73) of the deflection pin shaft (7) is of a concentric cylindrical structure with the diameter smaller than that of the shaft body (72).

10. A rail grinding unit according to claim 1, 2, 4, 6, 7 or 9 wherein: the deflection mechanism (3) adopts a deflection oil cylinder, the transverse moving mechanism (11) adopts a transverse moving air cylinder, and the pressing mechanism (14) adopts a pressing oil cylinder.

11. A rail grinding unit according to claim 10, wherein: the grinding motor (16) adopts an aluminum shell fan-free motor structure.

12. A rail grinding unit according to claim 1, 2, 4, 6, 7, 9 or 11 wherein: the deflection mechanism (3) adopts a deflection oil cylinder with a displacement sensor mechanism.