CN220908044U - Polishing unit and steel rail polishing equipment comprising same - Google Patents

Abstract

The application discloses a polishing unit and steel rail polishing equipment comprising the same, wherein the polishing unit comprises: the device comprises a traversing frame, a cross beam, a deflection driving mechanism, a polishing unit frame, a polishing motor and a pressing driving mechanism. The first transverse moving assembly and the second transverse moving assembly are arranged between the frame and the transverse moving frame, and the transverse moving driving mechanism is arranged between the frame body and the transverse moving frame. The polishing unit frame is pivotally connected with the transverse moving frame through a rotating shaft, and the cross beam is fixed on the polishing unit frame. The polishing motor is movably connected with the polishing unit frame through the rotating arm, one end of the pushing-down driving mechanism is connected with the polishing motor, and the other end of the pushing-down driving mechanism is connected to the cross beam. One end of the deflection driving mechanism is connected with the transverse moving frame, and the other end of the deflection driving mechanism is connected to the deflection mounting seat of the polishing unit frame. The application can solve the technical problems that the existing equipment cannot realize short-distance reciprocating polishing while having the advantages of simple structure, low manufacturing cost, light volume, high polishing power, high operation efficiency and high degree of automation.

Description

Polishing unit and steel rail polishing equipment comprising same

Technical Field

The application relates to the technical field of railway engineering machinery, in particular to a polishing unit applied to rail polishing and multifunctional automatic rail polishing equipment comprising the polishing unit.

Background

The rail is in abominable operational environment for a long time in the train operation in-process, because multiple reasons such as power effect, natural environment and rail self quality lead to the rail face condition to worsen constantly and the railhead warp, produce defects such as wave abrasion, fat limit, spalling, rail face fish scale, rail seam bottom collapse, seriously influence driving safety. The rail polishing can remove the surface irregularity of the rail and restore the rail head to the original design requirement, thereby realizing the purposes of effectively improving the wheel-rail relationship, slowing down the development of the surface defect of the rail, improving the surface smoothness of the rail and prolonging the service life of the rail. The rail grinding wagon is rail engineering equipment for removing rail diseases, and can be particularly used for eliminating the defects of wave abrasion, fat edges, flaking, rail surface scales, rail gap bottom collapse and the like generated in the use process of the rail.

In the prior art, the following documents are mainly relevant to the present application:

Prior art 1 is a chinese patent of utility model with publication number CN204325831U, filed by beijing two seven locomotives industry limited liability company at 2015, month 05, and announced at 2015, month 13. The utility model discloses a subway steel rail grinding wagon which comprises a carriage body, wherein a grinding unit is arranged on the carriage body, and the grinding unit is divided into a special grinding unit and a common grinding unit and is connected through a translation mechanism. The translation mechanism is provided with a spacing hydraulic cylinder, a contact hydraulic cylinder, a tensioning hydraulic cylinder and a centering hydraulic cylinder. The lower part of the frame body is provided with a travelling wheel, the frame body is hung on a polishing train, and a lifting hydraulic cylinder is arranged between the frame body and the polishing train. A locking device is arranged between the frame body and the polishing train. A traction device is arranged between the frame body and the polishing train. The polishing device can correct the complex subway line rail wavy abrasion and wheel rail scratch, correct the defects of inner and outer rail oblique deformation, wheel rail contact surface trimming and the like, and is suitable for subway line operation and polishing straight lines, curves and turnout rails.

In the prior art 2, beijing two seven locomotive industry Limited liability company applies for 22 days in 2014, and announces 30 days in 2014, 07, chinese utility model patent with publication number of CN 203741663U. The utility model discloses a steel rail grinding wagon which comprises a wagon frame body, wherein a grinding unit is arranged on the wagon frame body, travelling wheels are arranged at the lower part of the wagon frame body, the wagon frame body is hung on a grinding train, and a lifting hydraulic cylinder is arranged between the wagon frame body and the grinding train. A locking device is arranged between the frame body and the polishing train. A traction device is arranged between the frame body and the polishing train. The method can correct wavy abrasion of the track and abrasion of the wheel track, correct the defects of oblique deformation of the inner rail and the outer rail, repair the contact surface of the wheel track and the like, and is suitable for large-scale road maintenance operation and polishing of straight and curved steel rails.

The prior art 3 is applied for 20 days in 2020 by electronic technology limited company in the age of Royal, and published in 05 days in 2020, 06, chinese invention application with publication number CN 111235982A. The invention discloses a rail polishing trolley, which comprises: and two grinding trolleys connected in a hinged manner. The dolly of polishing includes: the device comprises a frame, a polishing unit, a travelling guide wheel, a dust collection channel and a fireproof and dustproof device. The polishing unit is arranged in the frame, the running guide wheel is arranged at the lower part of the frame, and the dust collecting channel is arranged at the upper part of the frame. The fireproof and dustproof device is coated on the other outside of the frame except the bottom, and a semi-closed structure of the polishing trolley is formed through the fireproof and dustproof device and the dust collecting channel. The rail polishing trolley further comprises an elastic traction rod and a rigid traction rod, wherein one polishing trolley is connected with the trolley body through the elastic traction rod, and the other polishing trolley is connected with the trolley body through the rigid traction rod. The invention can solve the technical problems of limited application occasions, poor running stability and poor polishing quality and effect of the conventional rail polishing trolley.

The polishing trolley structures in the prior art 1-3 are basically similar, and the structural design of the polishing trolley has the following defects:

1) The trolley polishing unit has no transverse movement function;

2) The polishing trolley is generally designed by 8 or 10 grinding heads, the number of the grinding heads cannot be changed, and the overall space utilization rate is low;

3) The polishing trolley is heavy in structure, and the polishing unit and the polishing motor are difficult to maintain;

4) The polishing trolley cannot finish the reciprocating polishing of the steel rail within a short distance range;

5) The grinding motor of the grinding trolley directly drives the grinding wheel to grind the steel rail, so that the motor bears larger axial impact in the operation process, and the service life of the grinding motor is reduced;

6) The polishing trolley can not well solve the technical problem that the turnout is possibly interfered or damaged in the operation process.

Prior art 4 is a Chinese invention application with publication number CN113355960A, which is applied for the publication number 07 of Beijing university of transportation in 2021, and published in 2021, 09, and 07. The invention discloses a self-driven intelligent abrasive belt sander. Comprising the following steps: the device comprises an abrasive belt wheel train, a tensioning mechanism, a lifting mechanism, a transverse deflection linkage mechanism and a complete machine running driving mechanism, wherein a driving wheel in the abrasive belt wheel train is connected with a driving motor in the tensioning mechanism, a contact wheel support in the abrasive belt wheel train is connected with a contact wheel support mounting plate in the lifting mechanism, a stand column in the transverse deflection linkage mechanism is connected with a lifting guide column in the lifting mechanism through a connecting rod, and the complete machine running driving mechanism is respectively connected with the abrasive belt wheel train, the tensioning mechanism, the lifting mechanism and the transverse deflection linkage mechanism through a frame and spans on a steel rail by means of a hub motor and wheels in the complete machine running driving mechanism. The sanding machine realizes tensioning of the abrasive belt through the strong spring force below the motor mounting frame, so that the structure is compact. The deflection mechanism and the transverse movement mechanism are linked, and the polishing mechanism is adjusted to be above a preset polishing position, so that polishing in a larger angle range from the inner side to the outer side along the profile of the steel rail can be completed.

The polishing trolley structural design in the prior art 4 has the following defects:

1) The grinding machine has the advantages of low power, simple structure function, lower performance efficiency, small single cutting amount, only one side of the steel rail can be ground at a time, and lower overall efficiency;

2) The actions of transverse movement, deflection, pressing and the like of the grinding machine all need manual operation, and the automation degree is low;

3) The grinding machine adopts a single grinding wheel, so that the working efficiency is low, and the grinding belt is easy to deviate and separate from the wheel groove by adopting the grinding belt for grinding;

4) The grinding machine has no dust collecting equipment, and scrap iron and dust ground by the steel rail fall on a sleeper or a sleeper bed;

5) The efficiency is low and the operation precision is low due to the fact that manual pushing is utilized in the reciprocating polishing process of the polishing machine;

6) The sander cannot well solve the technical problem that interference or damage may occur to the switch during operation.

Disclosure of utility model

In view of the above, the application aims to provide a polishing unit and rail polishing equipment comprising the same, which are used for solving the technical problems that the existing equipment or whole equipment is complex, the manufacturing cost is high, the structure is heavy, short-distance reciprocating polishing cannot be realized, or the polishing power is low, the whole equipment efficiency is low, the automation degree is low, and the operation is inconvenient.

In order to achieve the above object, the present utility model specifically provides a technical implementation scheme of a polishing unit, including: the device comprises a traversing frame, a cross beam, a deflection driving mechanism, a polishing unit frame, a polishing motor and a pressing driving mechanism. The first transverse moving assembly and the second transverse moving assembly are arranged between the frame and the transverse moving frame, and the transverse moving driving mechanism is arranged between the frame body and the transverse moving frame. The polishing unit frame is pivotally connected with the transverse moving frame through a rotating shaft, and the cross beam is fixed on the polishing unit frame. The polishing motor is movably connected with the polishing unit frame through the rotating arm, one end of the pushing-down driving mechanism is connected with the polishing motor, and the other end of the pushing-down driving mechanism is connected with the cross beam. One end of the deflection driving mechanism is connected with the transverse moving frame, and the other end of the deflection driving mechanism is connected to the deflection mounting seat of the polishing unit frame.

Further, be fixed with the motor mounting bracket on the motor of polishing, push down actuating mechanism's one end and be connected to the motor mounting bracket. One end of the rotating arm is hinged with the motor mounting frame, and the other end of the rotating arm is hinged to the polishing unit frame.

Further, the motor mounting plate is fixed to the lower side of the polishing motor, the cylinder is arranged below the motor mounting plate, and the cylinder is fixed to the motor mounting frame. In the cylinder, a motor rotating shaft of the polishing motor is connected with one end of a shaft sleeve through a first flat key, and the other end of the shaft sleeve is connected with one end of a polishing head driving shaft through a second flat key.

Further, the first bearing and the second bearing are sleeved on the polishing head driving shaft, and the first bearing and the second bearing are fixed in the cylinder body through the cover plate. The other end of the polishing head driving shaft extends out of the cylinder body and is connected with the polishing head through a fastening piece.

Further, a first sealing ring is arranged between the cover plate and the polishing head driving shaft, and a second sealing ring is arranged between the second bearing and the cylinder body.

Further, the upper part and the lower part of the left side and the right side of the motor mounting frame are movably connected with the polishing unit frame through rotating arms.

Further, the motor mounting frame comprises a first side plate and a second side plate which are opposite to each other in the horizontal direction and are arranged in parallel, and a first horizontal plate and a second horizontal plate which are connected between the first side plate and the second side plate, are opposite to each other in the vertical direction and are arranged in parallel. The cylinder body penetrates through the first horizontal plate and the second horizontal plate.

Further, the polishing unit comprises two polishing motors longitudinally arranged on the polishing unit frame, and the cross beam is fixed to the middle of the polishing unit frame.

The application also specifically provides a technical implementation scheme of steel rail polishing equipment, which comprises the following steps: the frame and the polishing units are arranged on the left side and the right side of the middle of the frame.

Further, the device further comprises a frame body arranged on the frame, the polishing unit is arranged in the frame body, and a dustproof chip blocking device is further arranged on the frame body. The dustproof bits device that keeps off includes:

A top cover plate hung on the frame body and positioned at the top of the frame body;

side cover plates hung on the frame body and positioned at the left side and the right side of the frame body;

End cover plates hung on the frame body and positioned at the front end and the rear end of the frame body;

and the closed structure of the polishing unit is realized through the top cover plate, the side cover plates and the end cover plates.

Further, a first transverse moving assembly and a second transverse moving assembly are arranged between the frame and the polishing unit, and form a transverse moving pair. And a transverse moving driving mechanism is arranged between the frame body and the polishing unit.

Further, rail leaning devices are arranged on the left side and the right side of the front part and the rear part of the frame.

By implementing the technical scheme of the polishing unit and the steel rail polishing equipment comprising the unit, the polishing unit has the following beneficial effects:

(1) The polishing unit and the steel rail polishing equipment comprising the unit have the advantages of simple whole car equipment, low manufacturing cost, simple structure, high polishing power, no need of whole car traction or manual pushing, high operation efficiency and automation degree, convenient operation and capability of realizing short-distance reciprocating polishing;

(2) The polishing unit and the steel rail polishing equipment comprising the unit have the advantages of labor and effort saving, rich functions, capability of realizing the actions of automatic deflection, transverse movement, independent pressing down of the polishing head and the like, and capability of meeting the condition that the polishing head is in a better stress and cutting state during polishing;

(3) The polishing unit and the steel rail polishing equipment comprising the unit have the advantages that the polishing heads adopt a four-head structure, the space utilization rate of the whole equipment is high, the single polishing head has high power and large cutting quantity, the polishing heads are distributed on two sides, the steel rail can be polished at the same time, and the overall operation efficiency is high;

(4) According to the polishing unit and the steel rail polishing equipment comprising the unit, the transmission equipment is arranged between the motor and the polishing head, so that the motor is prevented from being impacted axially on the premise of ensuring the transmission efficiency, the service life of the motor is ensured to be longer, the space design is reasonable, and the maintenance is simple and convenient;

(5) The polishing unit and the rail polishing equipment comprising the unit can realize short-distance automatic reciprocating polishing within the range of 1m, have high polishing precision and strong wave polishing removal capability, can be provided with a cup type polishing head or a disc type polishing head, and have a rail leaning mechanism, so that turnout polishing operation can be completed;

(6) The polishing unit comprises the dustproof scrap blocking device, can collect polished dust and part of scrap iron, can reduce dust pollution, improves the quality of the working environment of constructors, and fully ensures the health and safety of the constructors.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 evident that the drawings in the following description are only some embodiments of the application, from which other embodiments can be obtained for a person skilled in the art without inventive effort.

FIG. 1 is a schematic elevational view of one embodiment of a sanding unit of the present application;

FIG. 2 is a schematic perspective view of an embodiment of the polishing unit of the present application;

FIG. 3 is a schematic perspective view of one embodiment of the polishing unit of the present application in another view;

FIG. 4 is a schematic elevational view of one embodiment of the sanding unit of the present application (with the traversing frame removed);

FIG. 5 is a schematic perspective view of one embodiment of the sanding unit of the present application (with the traversing frame removed);

FIG. 6 is a schematic perspective view of one embodiment of a sharpening unit (with the traversing frame removed) according to the present application at another view angle;

FIG. 7 is a schematic perspective view of a grinding motor in accordance with one embodiment of the grinding unit of the present application;

FIG. 8 is a schematic view showing a partial cross-sectional structure of a polishing motor in one embodiment of the polishing unit of the present application;

FIG. 9 is a schematic elevational view of one embodiment of the rail grinding apparatus of the present application (after removal of the dust guard assembly);

FIG. 10 is a schematic side view of an embodiment of the rail grinding apparatus of the present application (after removal of the dust guard);

FIG. 11 is a schematic bottom view of an embodiment of the rail grinding apparatus of the present application (after removal of the dust guard);

FIG. 12 is a schematic rear view of an embodiment of the rail grinding apparatus of the present application (after removal of the dust guard);

FIG. 13 is a schematic top view of an embodiment of the rail grinding apparatus of the present application (after removal of the dust guard);

FIG. 14 is a schematic perspective view of an embodiment of the rail grinding apparatus of the present application (after removal of the dust guard);

FIG. 15 is a schematic perspective view of one embodiment of the rail grinding apparatus of the present application (after removal of the dust guard assembly) at another view angle;

FIG. 16 is a schematic perspective view of one embodiment of the rail grinding apparatus of the present application (after removal of the dust guard assembly) at a further view angle;

FIG. 17 is a schematic perspective view of an embodiment of the rail grinding apparatus of the present application;

FIG. 18 is a schematic elevational view of the rail attachment apparatus in one embodiment of the rail grinding apparatus of the present application;

FIG. 19 is a schematic top view of the rail attachment in one embodiment of the rail grinding apparatus of the present application;

FIG. 20 is a schematic side view of the rail attachment in one embodiment of the rail grinding apparatus of the present application;

FIG. 21 is a schematic perspective view of a rail rest assembly in one embodiment of a rail grinding apparatus of the present application;

FIG. 22 is a schematic cross-sectional view of a rail rest assembly in one embodiment of a rail grinding apparatus of the present application;

FIG. 23 is a schematic view of the assembled structure of parts of the rail attachment apparatus in one embodiment of the rail grinding apparatus of the present application;

FIG. 24 is a schematic view of the mounting structure of a rail rest in an embodiment of the rail grinding apparatus of the present application;

FIG. 25 is a schematic view of the mounting structure of the rail rest assembly in an alternative view of an embodiment of the rail grinding apparatus of the present application;

In the figure: 1-carriage, 2-drive axle, 3-battery, 4-dust-proof chip-blocking device, 5-carriage, 6-driven wheel assembly, 7-control system, 8-drive wheel assembly, 9-traversing drive mechanism, 10-first traversing assembly, 11-second traversing assembly, 12-sanding unit, 13-rail-set, 14-traversing frame, 15-cross beam, 16-yaw drive mechanism, 17-sanding unit carriage, 18-sanding motor, 19-push-down drive mechanism, 20-rail, 21-motor mount, 22-top cover, 23-side cover, 24-end cover, 25-mount, 26-warning light, 27-illuminating light, 28-camera, 29-wireless transmission device, 30-spindle, 31-shaft hole, 32-yaw mount, 33-swivel arm, 34-first side plate, 35-sanding head, 36-motor mount plate, 37-first horizontal plate, 38-second horizontal plate, 39-second side plate, 40-barrel, 41-motor spindle, 42-sleeve, 43-cover, 44-first key, 45-second key, 46-second bearing, 48-hinge, sliding pair, handle, 52-hinge, handle, 58-hinge, handle, slide joint, 52-hinge, handle, 58-hinge, handle, slide joint, pivot, 5-hinge, pivot, 55-hinge, handle, pivot, 58-hinge, slide joint, pivot, 5-hinge, pivot, 52-hinge, pivot, 5-handle, pivot, and slide joint, 58-hinge, pivot, 59-first rail pull rod seat, 60-rail pull rod, 61-return spring, 62-second rail pull rod seat, 63-rail spring, 64-slide rod seat, 65-slide rod, 66-slide seat, 67-rail wheel rotating shaft, 68-first bearing, 69-second bearing, 70-rail wheel, 71-gland, 72-connecting nut, 73-slotted hole, 74-first fastener, 75-second fastener, 76-mounting plate, 77-mounting hole, 100-rail polishing equipment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Embodiments of the present application and rail grinding apparatus including the same are shown in fig. 1 to 25, and the present application will be further described with reference to the accompanying drawings and embodiments.

Example 1

As shown in fig. 1 to 6, an embodiment of the polishing unit 12 of the present application specifically comprises: the transverse moving frame 14, the cross beam 15, the deflection driving mechanism 16, the polishing unit frame 17, the polishing motor 18 and the pressing driving mechanism 19. The first traverse assembly 10 and the second traverse assembly 11 are arranged between the carriage 1 and the traverse frame 14, and the traverse driving mechanism 9 is arranged between the carriage body 5 and the traverse frame 14. The grinding unit frame 17 is pivotally connected to the traversing frame 14 by a pivot 30, and the cross beam 15 is fixed to the grinding unit frame 17. The grinding motor 18 is movably connected to the grinding unit frame 17 through a swivel arm 33, and one end of the push-down driving mechanism 19 is connected to the grinding motor 18, and the other end is connected to the cross beam 15. One end of the yaw drive mechanism 16 is connected to the traverse frame 14, and the other end is connected to the yaw mount 32 of the sanding unit frame 17. The grinding motor 18 can be driven to perform pressing down and act on the steel rail 20 through the pressing down driving mechanism 19, and the grinding motor 18 (a pressing down cylinder can be specifically adopted) can be driven to perform deflection operation along the direction shown by T in the drawing around the rotating shaft 30 through the deflection driving mechanism 16, so that the deflection of the grinding motor 18 relative to the steel rail 20 is realized, and the grinding requirements of different angles in the operation process are met.

The transverse moving frame 14 is arranged on the frame 1 through a guide rail and a sliding block, the frame body 5 is arranged on the frame 1, one end of the transverse moving driving mechanism 9 is arranged on the transverse moving frame 14, and the other end is arranged on the frame body 5. The traversing frame 14 can be driven to move transversely under the action of the traversing driving mechanism 9, and simultaneously, the traversing of the polishing head 35 (which can specifically adopt a polishing grinding wheel) of the polishing motor 18 relative to the position of the steel rail 20 can be realized. One end of the deflection driving mechanism 16 is arranged on the transverse moving frame 14, the other end is arranged on the polishing unit frame 17, and the deflection of the polishing unit 12 relative to the steel rail 20 can be realized by the action of the deflection driving mechanism 16, so that polishing operations at different angles can be satisfied in the operation process. One end of the pushing driving mechanism 19 is arranged on the polishing unit frame 17, the other end is arranged on the motor mounting frame 21, and through the action of the pushing driving mechanism 19, the vertical (direction shown as H in the drawing) position change of the polishing motor 18 relative to the steel rail 20 can be realized, so that the polishing head 35 can be pushed down and act on the steel rail 20. The grinding motor 18 is arranged on the motor mounting frame 21, the grinding head 35 is arranged on the grinding head driving shaft 50 in the motor mounting frame 21, and the grinding motor 18 drives the grinding head driving shaft 50 to rotate under the action of a flat key, so that the grinding head 35 moves relatively to the steel rail 20, and the steel rail grinding operation is realized.

As shown in fig. 7, a motor mount 21 is fixed to the grinding motor 18, and one end of the push-down driving mechanism 19 is connected to the motor mount 21. One end of the swivel arm 33 is hinged to the motor mount 21, and the other end is hinged to the grinding unit frame 17. A motor mounting plate 36 is fixed below the polishing motor 18, a cylinder 40 is arranged below the motor mounting plate 36, and the cylinder 40 and the motor mounting frame 21 are welded and fixed into a whole. The motor mount 21 includes a first side plate 34 and a second side plate 39 that are disposed opposite to each other in the horizontal direction and in parallel, and a first horizontal plate 37 and a second horizontal plate 38 that are connected between the first side plate 34 and the second side plate 39 and are disposed opposite to each other in the vertical direction and in parallel. The cylinder 40 is inserted into the first horizontal plate 37 and the second horizontal plate 38, and is fixed to the first horizontal plate 37 and the second horizontal plate 38.

As shown in fig. 8, the sanding head driving shaft 50 is provided with a first bearing 47 and a second bearing 48, and the first bearing 47 and the second bearing 48 are fixed to the inside of the cylinder 40 by the cover plate 43. The other end of the sanding head drive shaft 50 extends out of the barrel 40 and is connected to the sanding head 35 by fasteners 74. A first seal ring 45 is provided between the cover plate 43 and the sanding head drive shaft 50, and a second seal ring 49 is provided between the second bearing 48 and the cylinder 40. In the cylinder 40, a motor shaft 41 of the grinding motor 18 is connected to one end of a sleeve 42 via a first flat key 44, and the other end of the sleeve 42 is connected to one end of a grinding head drive shaft 50 via a second flat key 46.

As an exemplary embodiment of the present application, the polishing unit 12 further includes two polishing motors 18 disposed in the polishing unit frame 17 in the longitudinal direction, and the cross beam 15 is fixed to the middle of the polishing unit frame 17. The upper and lower parts of the left and right sides of the motor mounting frame 21 are movably connected with the polishing unit frame 17 through a rotating arm 33, and the polishing units 12 are arranged on the left and right sides of the middle part of the frame 1.

Example 2

As shown in fig. 9 to 17, an embodiment of the rail grinding apparatus 100 of the present application specifically includes: the device comprises a frame 1, a storage battery 3, a dustproof chip blocking device 4, a frame body 5, a control system 7, a traversing driving mechanism 9, a first traversing assembly 10, a second traversing assembly 11 and a polishing unit 12. The wheel set for running and supporting the whole vehicle is arranged below the frame 1, and the storage battery 3, the control system 7 and the frame body 5 are arranged above the frame 1. The polishing unit 12 is arranged in the frame body 5, and the dustproof chip blocking device 4 is arranged on the frame body 5. The first traversing assembly 10 and the second traversing assembly 11 are arranged between the frame 1 and the polishing unit 12, and the first traversing assembly 10 and the second traversing assembly 11 form a traversing kinematic pair. The traverse driving mechanism 9 is arranged between the frame body 5 and the polishing unit 12, and the traverse driving mechanism 9 can drive the polishing unit 12 to move along the transverse direction (the direction shown as W in the drawing) relative to the frame 1. As an exemplary embodiment of the present application, the traversing driving mechanism 9 is a traversing electric cylinder, the first traversing assembly 10 is a traversing slider structure, and the second traversing assembly 11 is a traversing rail structure.

Before the operation starts, setting a corresponding polishing angle, traversing the polishing unit 12, deflecting the polishing motor 18 to the set angle after traversing in place, starting the polishing motor 18, and driving the polishing head 35 to rotate by the polishing motor 18. The rail grinding apparatus 100 starts running, and after the running speed reaches the target value, the grinding head 35 is pressed down onto the rail 20 to perform the grinding operation. After the polishing of the set angle is completed, the corresponding deflection angle and the corresponding transverse movement amount can be adjusted in the polishing operation process. After finishing polishing, the pressing driving mechanism 19 drives the polishing motor 18 to lift, and the polishing operation is finished.

As shown in fig. 9 to 14, the wheel set further comprises a driven wheel assembly 6 and a driving wheel assembly 8, wherein a driving axle 2 is arranged at one end of the lower part of the frame 1 along the longitudinal direction (the direction shown as L in the drawing), the driving wheel assembly 8 is arranged on the driving axle 2, and the driven wheel assembly 6 is arranged at the other end of the lower part of the frame 1 along the longitudinal direction. The driving axle 2 is installed at one end of the frame 1, and mainly provides support and driving power for the whole steel rail polishing equipment 100, ensures low constant-speed running requirements, and is provided with the driven wheel assembly 6 at the other end, and the driving axle 2 and the driven wheel assembly 6 are connected and positioned with the frame 1 through bolts. The driving wheel assembly 8 is arranged on the driving axle 2, the driving axle 2 is connected with the bottom of the frame 1 through bolts, and the driven wheel assembly 6 is arranged on the bottom of the frame 1 through bolts. The entire rail grinding apparatus 100 is driven by the drive axle 2 to travel over the rail 20. The storage battery 3 is arranged above the frame 1, is arranged and fixed on the frame 1 through a quick clamping and loosening mechanism, and is powered through a quick connector between the storage battery 3 and a motor, so that the storage battery 3 can be quickly assembled and disassembled and powered. The accumulator 3 can be powered by a generator set.

As shown in fig. 9, 10, 12, 14, 15, 16 and 17, the rail grinding apparatus 100 further includes:

The warning lamp 26 is arranged on the frame 1 or the frame body 5 through the fixing frame 25;

The illuminating lamp 27 is arranged on the frame 1 or the frame body 5 through the fixing frame 25 and is used for providing illumination for the operation of the steel rail polishing equipment under the low illumination condition;

The camera 28 is arranged on the frame 1 or the frame body 5 through the fixing frame 25 and is used for monitoring and recording the operation condition of the steel rail polishing equipment.

As shown in fig. 17, the dust-proof chip blocking device 4 further includes:

a top cover plate 22 hung on the frame body 5 and positioned on the top of the frame body 5;

Side cover plates 23 hung on the frame body 5 and positioned on the left side and the right side of the frame body 5;

end cover plates 24 hung on the frame body 5 and positioned at the front and rear ends of the frame body 5.

The dust-proof and chip-blocking device 4 is hung on a pin shaft of the frame body 5, and the dust-proof and chip-blocking device 4 comprises a top cover plate 22 at the top, side cover plates 23 at the left side and the right side, end cover plates 24 at the front end and the rear end, and the like. The dustproof chip blocking device 4 is fixed or hung on the frame body 5 through bolts or pins, so that the whole coverage of the polishing unit 12 is realized. The sealing structure of the polishing unit 12 is realized through the top cover plate 22, the side cover plate 23 and the end cover plate 24, so that the sealing performance and the good dust collecting effect of the polishing unit 12 are ensured.

The rail grinding apparatus 100 further comprises a wireless transmission device 29 mounted on the control system 7 and wirelessly connected thereto, the wireless transmission device 29 being configured to transmit wireless control instructions and data. The operator sends work control instructions and data to the rail grinding apparatus 100 via the operator terminal, which are received via the wireless transmission device 29 and sent to the control system 7.

As a typical embodiment of the present application, the rail grinding apparatus 100 adopts a bilateral symmetry structure, and includes two sets of storage batteries 3, a control system 7 and a grinding unit 12, which are symmetrically disposed above the frame 1 and located at the left and right sides of the frame 1, and the grinding unit 12 is located between the storage batteries 3 and the control system 7. The control system 7 is installed at the end part of the frame 1 and is fixed in a box body at the end part of the frame 1 through a quick-release structure. The polishing unit 12 is arranged in the frame body 5 at the left side and the right side of the frame 1, and a polishing motor 18 is arranged in the polishing unit 12. The traversing frame 14 of the polishing unit 12 is connected with the frame 1 and the frame body 5 through traversing kinematic pairs, traversing driving mechanisms 9, limiting devices and the like, and realizes traversing on the frame 1. The polishing motor 18 is mounted on the traversing frame 14, the single polishing motor 18 can move up and down on the polishing unit frame 17 through a pushing driving mechanism 19, the polishing unit frame 17 is mounted on the traversing frame 14 through a rotating shaft (pin) 30, and the polishing unit 12 is deflected relative to the traversing frame 14 through a deflection driving mechanism 16 (a deflection electric cylinder can be specifically adopted).

As shown in fig. 9 to 17, rail rest devices 13 are further provided on the left and right sides of the front and rear portions of the frame 1, and the rail rest devices 13 include rail rest wheels 70. In the normal grinding condition, the rail rest 13 is inactive and the rail rest wheel 70 is spaced away from the stock rail. Before the turnout is polished, a rail leaning operation handle (namely a handle 51) close to one side of the stock rail is manually lifted, and a rail leaning device 13 close to one side of the stock rail acts, so that a rail leaning wheel 70 is tightly attached to the inner side of the stock rail, the purpose of limiting the rail polishing equipment 100 to conduct snaking motion during turnout operation is achieved, and the rail polishing equipment 100 is ensured to safely pass through a harmful space and a turnout position. The steel rail polishing equipment 100 described in the embodiment of the application has a low constant-speed self-walking function, can meet the polishing requirements of various circuits such as a positive line, a turnout and the like, and can realize the short-distance reciprocating polishing requirement. Meanwhile, the rail grinding device 100 has the function of ensuring that the grinding unit 12 does not make serpentine motion in the process of grinding the turnout, can ensure that the grinding head 35 does not change significantly in the transverse position relative to the rail 20, and has the advantages of simple manual operation, stability, reliability, low cost and the like.

As shown in fig. 18 to 21, the rail device 13 further includes a handle 51 (i.e., a rail operating handle), a handle base 54, a rail pull rod 60, a slide rod 65, and a slide seat 66, and the rail operation can be performed by manually operating the rail operating handle. The rail tie rod 60 is movably inserted into the first rail tie rod seat 59 and the second rail tie rod seat 62, and the slide rod 65 is movably inserted into the slide seat 66 and is fixed to the frame 1 by slide rod seats 64 provided at both ends of the slide rod 65. The sliding seat 66 is fixed at the same time to the bottom of the second rail pull rod seat 62, the sliding seat 66 can slide along the axial direction of the sliding rod 65, and the rail wheel 70 is movably mounted on the inner side of the sliding seat 66 through the rail wheel rotating shaft 67. The rail leaning rod 60 is sleeved with a rail leaning spring 63, and the rail leaning spring 63 is simultaneously positioned between a flange at one end of the rail leaning rod 60 and the second rail leaning rod seat 62. The rail rest pull rod 60 is also sleeved with a return spring 61, and the return spring 61 is simultaneously positioned between the second rail rest pull rod seat 62 and the first rail rest pull rod seat 59. The first rail pull rod seat 59 and the pull rod base 54 are both fixed on the frame 1, the pull rod 51 is movably arranged on the pull rod base 54, and the other end of the rail pull rod 60 is movably connected to the pull rod 51. At least two sliding rods 65 which are arranged in parallel along the horizontal direction are movably arranged in the sliding seat 66 in a penetrating way, and the two sliding rods 65 are connected and fixed through the sliding rod seat 64. The rail wheel spindle 67 is movably mounted to the slide mount 66 by a first bearing 68 and a second bearing 69 fitted over the spindle. The rail 70 is fixed to one end of the rail rotation shaft 67 by the pressing cover 71, and the other end of the rail rotation shaft 67 is fixed to the slide seat 66 by the second fastener 75.

As shown in fig. 22 and 23, the handle base 54 is provided with a hinge lever rotation shaft 53 and a handle rotation shaft 55, the handle 51 is hinged to the handle rotation shaft 55, and a slot 73 is formed in the handle 51. One end of the track rod 60 is connected to one end of the slide rod 58 by a connecting nut 72, and the other end of the slide rod 58 is hinged to one end of the rod hinge rod 57. One end of the handle hinge lever 52 is provided with a handle movable shaft 56, and the other end is hinged to the hinge lever rotation shaft 53. The other end of the pull rod hinge lever 57 is hinged to the pull handle movable shaft 56, and the pull handle movable shaft 56 is simultaneously located in the slot 73.

As shown in fig. 24 and 25, one end of the track rod 60 is connected to one end of the slide rod 58 by a coupling nut 72. The rail rest 13 is provided on the left and right sides of the front and rear portions of the frame 1. The frame 1 is provided with a mounting plate 76, and the first rail rod seat 59 and the handle base 54 are fixed to the upper portion of the mounting plate 76. The slide mount 66 passes through a mounting hole 77 formed in the mounting plate 76 and is fixed to the lower portion of the mounting plate 76 by the slide lever mount 64.

The handle base 54, the first rail pull rod seat 59 and the sliding rod seat 64 are all fixed on the frame 1 through bolts, the sliding pull rod 58 and the rail pull rod 60 are connected and fastened through a connecting nut 72, and the second rail pull rod seat 62 is fixed on the sliding seat 66. When the handle 51 is lifted, the handle 51 drives one ends of the handle hinge lever 57 and the handle hinge lever 52 to move upward together with the handle movable shaft 56, and the slide pull rod 58 is pulled toward the inside (the side shown as B in the drawing, the outside is the side shown as a in the drawing), driving the track rod 60 to move toward the inside. Under the action of the return spring 61 and the rail leaning spring 63, the sliding seat 66 is driven to slide inwards, and the rail leaning wheel 70 is driven to cling to the inner side of the steel rail 20 (namely the stock rail), so that rail leaning action is realized. The rail leaning device 13 is matched with the polishing unit 12 to be applied to turnout polishing operation or other turnout operation equipment, and can play a role in that running wheels (i.e. wheel pairs) are in a relatively stable state relative to a stock rail, so that the operation equipment cannot possibly interfere with or damage turnout during operation. When the handle 51 is lifted up, the sliding seat 66 moves toward the inner side of the rail 20, driving the rail wheel 70 to abut against the inner side surface of the rail 20, and the handle 51 is in a self-locking state and keeps a lifted state when no external force acts.

It should be noted that, in the present application, the traversing driving mechanism 9, the deflecting driving mechanism 16 and the pushing driving mechanism 19 may be replaced by an oil cylinder, an air cylinder or the like, in addition to the electric cylinder structure preferred in the embodiment, but the overall polishing effect may be inferior to the preferred technical scheme given in the embodiment of the present application. In addition, the first traversing assembly 10 and the second traversing assembly 11 can specifically adopt structures such as a guide sleeve and guide pillar combination, a guide rail and slide block combination, a gear and rack combination and the like to realize the translational motion pair function.

In the description of the present application, it will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" or "a number" means two or more, unless specifically defined otherwise.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

By implementing the technical scheme of the polishing unit and the steel rail polishing equipment comprising the unit, the following technical effects can be achieved:

(1) The polishing unit and the steel rail polishing equipment comprising the unit are simple in whole car equipment, low in cost, simple in structure, high in polishing power, high in operation efficiency and automation degree, convenient to operate and capable of achieving short-distance reciprocating polishing, and whole car traction or manual pushing is not needed;

(2) The polishing unit and the steel rail polishing equipment comprising the unit are low in noise in the use process of the equipment, labor and effort are saved, the functions are rich, the actions of automatic deflection, transverse movement, independent pressing down of the polishing head and the like can be realized, and the condition that the polishing head is in a better stress and cutting state in polishing can be met;

(3) The polishing unit and the steel rail polishing equipment comprising the unit have the advantages that the polishing heads adopt a four-grinding-head structure, the space utilization rate of the whole equipment is high, the single grinding head is high in power and large in cutting quantity, the grinding heads are distributed on two sides, the steel rails can be polished at the same time, and the overall operation efficiency is high;

(4) The polishing unit and the steel rail polishing equipment comprising the unit are characterized in that a transmission device is arranged between the motor and the polishing head, so that the motor is prevented from being impacted axially on the premise of ensuring the transmission efficiency, the service life of the motor is ensured to be longer, the space design is reasonable, and the maintenance is simple and convenient;

(5) The polishing unit and the rail polishing equipment comprising the unit can realize short-distance automatic reciprocating polishing within a range of 1m, have high polishing precision and strong wave polishing removal capability, can be provided with a cup type polishing head or a disc type polishing head, and have a rail leaning mechanism, so that turnout polishing operation can be completed;

(6) The polishing unit and the steel rail polishing equipment comprising the polishing unit disclosed by the embodiment of the application have the advantages that the polishing unit comprises the dustproof scrap blocking device, the polished dust and part of scrap iron can be collected, the dust pollution can be reduced, the quality of the working environment of constructors is improved, and the health and safety of the constructors are fully ensured.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by a difference from other embodiments, and identical and similar parts between the embodiments are referred to each other.

The above description is only of the preferred embodiment of the present application, and is not intended to limit the present application in any way. While the application has been described in terms of preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present application or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present application. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present application still fall within the scope of the technical solution of the present application, unless departing from the technical solution of the present application.

Claims (12)

1. A sanding unit comprising: the device comprises a transverse moving frame (14), a cross beam (15), a deflection driving mechanism (16), a polishing unit frame (17), a polishing motor (18) and a pressing driving mechanism (19); the first transverse moving assembly (10) and the second transverse moving assembly (11) are arranged between the frame (1) and the transverse moving frame (14), and the transverse moving driving mechanism (9) is arranged between the frame body (5) and the transverse moving frame (14); the polishing unit frame (17) is pivotally connected with the transverse moving frame (14) through a rotating shaft (30), and the cross beam (15) is fixed on the polishing unit frame (17); the polishing motor (18) is movably connected with the polishing unit frame (17) through a rotating arm (33), one end of the pushing driving mechanism (19) is connected with the polishing motor (18), and the other end is connected to the cross beam (15); one end of the deflection driving mechanism (16) is connected with the transverse moving frame (14), and the other end is connected to a deflection mounting seat (32) of the polishing unit frame (17).

2. A sanding unit as defined in claim 1, wherein: a motor mounting frame (21) is fixed on the polishing motor (18), and one end of the pushing-down driving mechanism (19) is connected to the motor mounting frame (21); one end of the rotating arm (33) is hinged with the motor mounting frame (21), and the other end of the rotating arm is hinged to the polishing unit frame (17).

3. A sanding unit as defined in claim 2, wherein: a motor mounting plate (36) is fixed below the polishing motor (18), a cylinder (40) is arranged below the motor mounting plate (36), and the cylinder (40) is fixed with a motor mounting frame (21); in the cylinder body (40), a motor rotating shaft (41) of the polishing motor (18) is connected with one end of a shaft sleeve (42) through a first flat key (44), and the other end of the shaft sleeve (42) is connected with one end of a polishing head driving shaft (50) through a second flat key (46).

4. A sanding unit according to claim 3, characterized in that: the polishing head driving shaft (50) is sleeved with a first bearing (47) and a second bearing (48), and the first bearing (47) and the second bearing (48) are fixed in the cylinder body (40) through a cover plate (43); the other end of the grinding head driving shaft (50) extends out of the cylinder body (40) and is connected with the grinding head (35) through a fastener (74).

5. A sanding unit as defined in claim 4, wherein: a first sealing ring (45) is arranged between the cover plate (43) and the polishing head driving shaft (50), and a second sealing ring (49) is arranged between the second bearing (48) and the cylinder body (40).

6. A sanding unit as defined in any one of claims 3 to 5, wherein: the upper part and the lower part of the left side and the right side of the motor mounting frame (21) are movably connected with the polishing unit frame (17) through rotating arms (33).

7. A sanding unit as defined in claim 6, wherein: the motor mounting frame (21) comprises a first side plate (34) and a second side plate (39) which are opposite to each other in the horizontal direction and are arranged in parallel, and a first horizontal plate (37) and a second horizontal plate (38) which are connected between the first side plate (34) and the second side plate (39) and are opposite to each other in the vertical direction and are arranged in parallel; the cylinder body (40) is arranged in the first horizontal plate (37) and the second horizontal plate (38) in a penetrating mode.

8. A sanding unit as defined in claim 2, 3, 4, 5 or 7, wherein: the polishing unit (12) comprises two polishing motors (18) longitudinally arranged on a polishing unit frame (17), and the cross beam (15) is fixed to the middle of the polishing unit frame (17).

9. A rail grinding apparatus comprising: a frame (1), and a polishing unit (12) according to any one of claims 1 to 8 disposed on the left and right sides of the middle of the frame (1).

10. A rail grinding apparatus as defined in claim 9, wherein: the equipment also comprises a frame body (5) arranged on the frame (1), the polishing unit (12) is arranged in the frame body (5), and the frame body (5) is also provided with a dustproof chip blocking device (4); the dust-proof chip blocking device (4) comprises:

A top cover plate (22) hung on the frame body (5) and positioned at the top of the frame body (5);

side cover plates (23) hung on the frame body (5) and positioned at the left side and the right side of the frame body (5);

end cover plates (24) hung on the frame body (5) and positioned at the front end and the rear end of the frame body (5);

The closed structure of the grinding unit (12) is realized through the top cover plate (22), the side cover plate (23) and the end cover plate (24).

11. Rail grinding apparatus as claimed in claim 9 or 10, wherein: a first traversing assembly (10) and a second traversing assembly (11) are arranged between the frame (1) and the polishing unit (12), and the first traversing assembly (10) and the second traversing assembly (11) form a traversing kinematic pair; a transverse moving driving mechanism (9) is arranged between the frame body (5) and the polishing unit (12).

12. A rail grinding apparatus as defined in claim 11, wherein: rail leaning devices (13) are arranged on the left side and the right side of the front part and the rear part of the frame (1).