CN111661101B - Traction device and steel rail polishing trolley comprising same - Google Patents
Traction device and steel rail polishing trolley comprising same Download PDFInfo
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- CN111661101B CN111661101B CN202010614368.2A CN202010614368A CN111661101B CN 111661101 B CN111661101 B CN 111661101B CN 202010614368 A CN202010614368 A CN 202010614368A CN 111661101 B CN111661101 B CN 111661101B
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- 238000005498 polishing Methods 0.000 title claims abstract description 461
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 75
- 239000010959 steel Substances 0.000 title claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims description 128
- 238000009434 installation Methods 0.000 claims description 65
- 239000000428 dust Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 18
- 230000001603 reducing effect Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 description 17
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- 230000007547 defect Effects 0.000 description 8
- 230000009970 fire resistant effect Effects 0.000 description 7
- 238000007665 sagging Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
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- 238000012986 modification Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
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- 238000003825 pressing Methods 0.000 description 3
- 238000013519 translation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
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- 238000007517 polishing process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/20—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D19/00—Door arrangements specially adapted for rail vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a traction device and a rail polishing trolley comprising the same, wherein the traction device adopts a vertical traction structure and comprises: traction seat, traction guide pillar, traction guide sleeve, traction connecting plate and pin shaft. The traction seat is arranged at the bottom of the grinding machine, and the traction guide sleeve is sleeved on the traction guide post. The upper end of the traction guide post is arranged on the traction seat through a pin shaft, and the traction guide sleeve is connected to the frame of the polishing trolley through a traction connecting plate. The traction guide post can swing transversely along the steel rail by taking the pin shaft as a rotating shaft, and when the traction guide post swings, the traction guide sleeve can move up and down along the traction guide post. The traction force of the polishing trolley is transmitted to the frame through the traction seat, the traction guide post, the traction guide sleeve and the traction connecting plate, so that the polishing trolley is driven to operate. The invention can solve the technical problem that the existing traction rod of the steel rail polishing trolley is a diagonal traction rod, which can have a load reducing effect on the polishing trolley and can cause the rail falling of the polishing trolley in extreme cases.
Description
Technical Field
The invention relates to the technical field of track engineering machinery, in particular to a traction device of a grinding trolley serving as an operation executing mechanism of a steel rail grinding trolley and the steel rail grinding trolley comprising the traction device.
Background
In the running process of the train, the rail surface condition is continuously deteriorated and the rail head is deformed due to multiple reasons such as the power effect, the natural environment, the quality of the rail and the like, so that the defects of wave abrasion, fat edges, flaking, rail surface scales and the like are generated, and the running safety is influenced. The rail polishing can remove the surface irregularity of the rail and restore the rail head to the original design requirement, thereby realizing the effective improvement of 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 polishing trolley is a core operation mechanism of the steel rail polishing trolley and is arranged at the bottom of the steel rail polishing trolley through components such as a traction rod, a lifting oil cylinder and the like, and mainly comprises a traction device, a running device, a polishing unit, a lifting device and the like. When not in operation, the polishing device is hung and locked at the bottom of the polishing trolley through the locking device. During operation, the polishing device is lowered to the steel rail through the lifting device and moves along the rail along with the polishing vehicle. The traction device is a main component for connecting the grinding wagon and the grinding device, and transmits traction force of the grinding wagon to the grinding device.
In the prior art, the following technical schemes are mainly related to the application of the invention:
The prior art 1 is an utility model patent with publication number of CN204325831U, which is applied for the publication of 2014, 12 months and 16 days, and is announced by 2015, 05 months and 13 days. 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.
The prior art 2 is an utility model patent with publication number of CN203741663U, which is applied for 22 days of 04 months of 2014 and announced 30 days of 07 months of 2014. 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 polishing trolley described in the two patents is basically consistent in structure, and the polishing trolley adopting the structure mainly has the following technical defects:
(1) The traction rod of the polishing trolley is a diagonal traction rod, so that the polishing trolley can be subjected to load shedding, and the polishing trolley can be caused to fall down in extreme cases;
(2) The wheel track of the polishing trolley is fixed and can only run on a standard rail;
(3) The polishing trolley can only be lifted integrally;
(4) The polishing unit of the polishing trolley does not have a traversing function;
(5) The grinding trolley is of 8 grinding head fixed design, and the number of grinding heads cannot be changed;
(6) The polishing trolley is heavy in structure, and the polishing unit and the polishing motor are difficult to maintain.
The prior art 3 is a Chinese invention application with publication number CN109750566A, which is published in 2019, 03 and 08 and 14. The application discloses rail dolly of polishing, including the frame, unit of polishing and derailment protection device, the traction lever is all installed to the top both sides of frame, and the below of frame is fixed with the running wheel, the unit of polishing sets up in the inside of frame, and dust collecting channel is installed to the top of frame, derailment protection device is fixed in the left and right sides of frame, and hoisting device is installed to the inside both sides of frame, hoisting device's below is provided with deflection jar, and the guide bar is installed to the below of deflection jar, the outside of guide bar is provided with the guide holder, and one side of guide holder is fixed with the jar. The rail polishing trolley is provided with a traversing structure convenient for translation, and the guide seat can displace on the guide rod under the driving action of the electric cylinder, so that traversing of the polishing unit can be realized, and the rail polishing trolley is convenient for avoiding barriers at two sides of the rail during polishing, and expands the operation range.
The polishing trolley adopting the structure mainly has the following technical defects:
(1) The traction rod of the polishing trolley is a diagonal traction rod, so that the polishing trolley can be subjected to load shedding, and the rail falling of the polishing trolley can be caused under extreme conditions;
(2) The wheel track of the polishing trolley is fixed and can only run on a standard rail;
(3) The polishing trolley can only be lifted integrally.
Prior art 4 is a Chinese invention application with publication number CN111139698A, published in 2020, 20 months and 12 months. The application discloses subway rail grinding wagon includes: a car body, a rail polishing trolley which is hung on the lower part of the car body through a lifting mechanism, the rail polishing trolley comprises two polishing trolleys which are hinged with each other. 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 traction of the rail grinding trolley is realized through the elastic traction rod and the rigid traction rod. The application can solve the technical problems that the existing subway rail grinding wagon has limited application occasions, poor running stability and poor grinding quality and effect.
The polishing trolley adopting the structure mainly has the following technical defects:
(1) The traction rod of the polishing trolley is a diagonal traction rod, so that the polishing trolley can be subjected to load shedding, and the rail falling of the polishing trolley can be caused under extreme conditions;
(2) The wheel track of the polishing trolley is fixed and can only run on a standard rail;
(3) The polishing trolley can only be lifted integrally.
When the polishing device is hung below the car body, the hanging locking device bears the self weight of the polishing device, and the traction device is in a free state at the moment. Before polishing, the locking is released and the polishing device is placed on the steel rail through the lifting device. Because the polishing device does not have running power, the polishing device needs to rely on a traction rod to transmit power to move along the steel rail. Therefore, the structural form and the mounting mode of the traction rod have important influence on the running operation and the whole vehicle dynamics performance of the polishing device. For the steel rail polishing device, the traditional traction rod mounting mode is a diagonal traction rod with an angle. The front end and the rear end of the polishing device are respectively provided with a rigid traction rod and an elastic traction rod, and the two ends of the traction rod are respectively connected with the chassis of the cart and the device in a spherical hinge mode. One side of the telescopic rod is a rigid traction rod, and the fixed length of the telescopic rod has no deformation and expansion space. The other side is an elastic traction rod, a spring structure is arranged in the elastic traction rod, and the elastic traction rod has deformation expansion amount when loaded. From analysis of the structural form and the installation mode of the cable-stayed traction rod, the traditional cable-stayed traction rod has the following defects:
(1) The inclined pulling type traction rod has large requirement on the installation space position of the steel rail in the longitudinal direction, and the design layout difficulty of the whole grinding vehicle is improved;
(2) The inclined pulling type traction rod has an angle, so that a component force which is vertically upwards is formed on the grinding device during traction movement, and the component force can have a load reducing effect on the grinding device, so that the running and the dynamic characteristics during grinding of the grinding device can be influenced;
(3) Because the inclined pulling type traction rod adopts a structural mode that one end of the traction rod is rigid, and the other end of the traction rod is an elastic traction rod, and traction force is mainly provided by the rigid traction rod, when the advancing directions of the steel rail polishing machine are different, the traction force forms of the traction rod to the polishing device are also different, and therefore, the difference of polishing operation effects is possibly caused when the polishing machine polishes in the positive and negative directions.
Disclosure of Invention
In view of the above, the invention aims to provide a traction device and a rail polishing trolley comprising the same, so as to solve the technical problems that the traction rod of the conventional rail polishing trolley is a diagonal traction rod, which can have a load reducing effect on the polishing trolley and can cause the rail falling of the polishing trolley in extreme cases.
In order to achieve the above purpose, the invention specifically provides a technical implementation scheme of a traction device, wherein the traction device is arranged at the lower part of a grinding wagon and is used for transmitting traction force of the grinding wagon to a grinding trolley. The traction device adopts a vertical traction structure and comprises: traction seat, traction guide pillar, traction guide sleeve, traction connecting plate and pin shaft. The traction seat is arranged at the bottom of the grinding vehicle, and the traction guide sleeve is sleeved on the traction guide post. The upper end of the traction guide post is arranged on the traction seat through a pin shaft, and the traction guide sleeve is connected to the frame of the polishing trolley through a traction connecting plate. The traction guide post can swing transversely along the steel rail by taking the pin shaft as a rotating shaft, and when the traction guide post swings, the traction guide sleeve can move up and down along the traction guide post. Traction force of the polishing trolley is transmitted to the frame through the traction seat, the traction guide post, the traction guide sleeve and the traction connecting plate, and therefore the polishing trolley is driven to operate.
Further, the traction device further comprises a traction pin shaft, one end of the traction pin shaft is movably connected to the traction pin shaft mounting seat of the traction guide sleeve, and the other end of the traction pin shaft is connected with the traction connecting plate. One end of the traction connecting plate is connected to the middle beam of the frame, and the traction connecting plate can rotate relative to the traction pin shaft mounting seat by taking the traction pin shaft as a rotating shaft.
Further, the traction device further comprises a traction pin shaft cover plate, a shaft head part at one end of the traction pin shaft is arranged in a clamping groove of the traction pin shaft mounting seat and is fixed through the traction pin shaft cover plate, and the traction pin shaft can rotate relative to the traction pin shaft mounting seat along the axial direction.
The invention also specifically provides a technical implementation scheme of the steel rail polishing trolley comprising the traction device, wherein the steel rail polishing trolley is arranged at the lower part of the polishing trolley, and the polishing trolley comprises: the device comprises a frame, a fireproof and dustproof device, a locking device, a polishing unit, a lifting device and the traction device. The frame comprises a middle beam and polishing unit installation frames which are arranged on the left side and the right side of the middle beam along the operation direction of the polishing trolley by adopting a symmetrical structure and can be independently lifted. The two traction devices are symmetrically arranged at the front end and the rear end along the operation direction of the polishing trolley, and are arranged at the bottom of the polishing trolley and connected with the middle beam. The fireproof and dustproof device is arranged on the frame, and the polishing unit is arranged on the polishing unit installation frame and is arranged in the fireproof and dustproof device. One end of the lifting device is connected to the bottom of the polishing trolley, the other end of the lifting device is connected with the frame, and the polishing trolley can be fixed to the bottom of the polishing trolley through the locking device.
Further, the frame also comprises a running wheel mounting seat, a running wheel, a wheel track adjusting guide post, a wheel track adjusting guide sleeve and a wheel track adjusting mechanism. The two wheel track adjusting guide posts are respectively and fixedly connected to the front end and the rear end of the middle beam along the operation direction of the polishing trolley, and the two ends of the wheel track adjusting guide posts along the length direction are respectively sleeved with a wheel track adjusting guide sleeve. One end of the wheel track adjusting mechanism is connected to the connecting seat on the middle beam, the other end of the wheel track adjusting mechanism is connected to the wheel track adjusting guide sleeve, and the running wheels are arranged below the wheel track adjusting guide sleeve through the running wheel mounting seat. The track adjusting guide sleeve is driven to transversely move on the track adjusting guide post through the extension and retraction of the track adjusting mechanism, and further the running wheel connected with the track adjusting guide sleeve is driven to transversely move, so that the track adjustment of the running wheel is realized.
Further, the frame further comprises a polishing device lifting guide post and a polishing device lifting guide sleeve sleeved outside the polishing device lifting guide post. The upper portion of the polishing device lifting guide post is connected to the end portion of the polishing unit installation frame along the operation direction of the polishing trolley, and the polishing device lifting guide sleeve is fixedly connected with the wheel tread adjusting guide sleeve positioned at the same end. The frame also comprises a polishing device lifting mechanism, one ends of the two polishing device lifting mechanisms are respectively connected to the front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley, and the other ends of the two polishing device lifting mechanisms are connected to the wheel track adjusting guide sleeve positioned on the same side. The front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley are respectively provided with a pair of polishing device lifting guide posts, and the polishing device lifting mechanism is arranged between the two polishing device lifting guide posts. When the lifting mechanism of the polishing device stretches and contracts, the lifting guide post of the polishing device is driven to move up and down relative to the lifting guide sleeve of the polishing device, so that the lifting movement of the mounting frame of the polishing unit relative to the center sill is realized.
Further, the frame also comprises guide sleeve connecting parts, wherein the two guide sleeve connecting parts are respectively arranged at the front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley and are connected between the two lifting guide sleeves of the polishing device at the same end. The wheel track adjusting guide post is fixedly connected with the middle beam through a connecting seat, and paired wheel track adjusting mechanisms are arranged at the front end and the rear end of the frame along the operation direction of the polishing trolley. One end of the wheel track adjusting mechanism is connected to the connecting seat, and the other end of the wheel track adjusting mechanism is connected with the wheel track adjusting guide sleeve positioned on the same side.
Further, the polishing unit mounting frame includes a first polishing unit mounting frame and a second polishing unit mounting frame. The first polishing unit installation frame and the second polishing unit installation frame can be lifted independently, so that the corresponding polishing unit installation frame can be lifted independently when the polishing trolley encounters a single-side obstacle in the operation process. The first polishing unit installation frame and the second polishing unit installation frame are welded with polishing unit installation seats, the polishing units are fixed on the polishing unit installation seats through bolt connection, and the installation quantity of the polishing units is changed by adjusting the relative positions of the polishing unit installation seats.
Further, the lifting device comprises a polishing trolley lifting mechanism, an upper mounting seat and a lower mounting seat. One end of the polishing trolley lifting mechanism is fixed to the bottom of the polishing trolley through an upper mounting seat, and the other end of the polishing trolley lifting mechanism is fixed to a travelling wheel mounting seat through a lower mounting seat. And the whole lifting and lowering of the polishing trolley are controlled by the polishing trolley lifting mechanism.
Further, the fireproof and dustproof device comprises a middle baffle, a cover plate, a vehicle door, a dust collecting curtain, an end baffle and a fireproof curtain. The cover plate is arranged on the left side and the right side of the dust collecting curtain along the operation direction of the polishing trolley and is arranged on the frame of the polishing trolley. One side of the dust collecting curtain is connected to the bottom of the body of the grinding vehicle, and the opposite side is connected with the cover plate. The car door is arranged on the left side and the right side of the polishing trolley along the operation direction and is connected with the cover plate through a hinge. The middle baffle is connected to the lower part of the frame in a hanging way, and the end baffles are arranged at the front end and the rear end of the polishing trolley along the operation direction and are arranged on the frame. The lower parts of the vehicle door and the end baffle are connected with a fireproof curtain.
Further, a rail leaning device is further arranged between two adjacent polishing units of the first polishing unit installation frame and/or the second polishing unit installation frame. And calculating the relative variation of the initial position of the rail leaning device and the moving position after rail leaning, and combining the initial position of the first traversing mechanism of the polishing unit to obtain the traversing amount of the first traversing mechanism.
Further, the rail leaning device comprises a mounting plate, a transverse moving guide post, a transverse moving guide sleeve, a transverse moving mechanism II, a vertical moving guide sleeve guide post, a vertical moving mechanism, a rail leaning wheel mounting seat, a rail leaning wheel, a first elastic component and a second elastic component. The two mounting plates are arranged opposite to each other and fixed on the frame of the polishing trolley, and the transverse guide post is connected between the two mounting plates. The transverse guide post is sleeved with a transverse guide sleeve, one end of the second transverse mechanism is connected with the mounting plate, and the other end of the second transverse mechanism is connected to the transverse guide sleeve. One end of the first elastic component is connected with the mounting plate, and the other end of the first elastic component is connected to the transverse moving guide sleeve. One end of the vertical moving guide sleeve guide post is connected with the horizontal moving guide sleeve, and the other end of the vertical moving guide sleeve guide post extends downwards and is connected to a rail leaning wheel mounting seat, and the rail leaning wheel is mounted on the rail leaning wheel mounting seat. One end of the vertical moving mechanism is connected with the transverse moving guide sleeve, and the other end of the vertical moving mechanism is connected to the rail leaning wheel mounting seat. The first elastic component is connected between the mounting plate and the transverse guide sleeve, and the second elastic component is connected between the transverse guide sleeve and the rail leaning wheel mounting seat. When the acting force of the second traversing mechanism is unloaded, the first elastic component enables the traversing guide sleeve to receive the acting force pointing to the rail leaning direction of the rail leaning wheel, so that the rail leaning wheel is pressed against the side face of the steel rail.
By implementing the technical scheme of the traction device and the steel rail polishing trolley comprising the traction device, the traction device has the following beneficial effects:
(1) According to the traction device and the steel rail polishing trolley comprising the traction device, the traction device adopts a vertically installed structure, the front end and the rear end of a single polishing trolley are respectively provided with one traction seat, the traction seat and the traction guide post are connected with the spherical hinge structure of the traction connecting plate through the pin shaft, so that the rotation freedom degree of the traction device can be effectively released, the load shedding effect of the traditional cable-stayed traction rod on the polishing trolley is avoided, and the condition that the polishing trolley falls down in the extreme case is effectively avoided;
(2) According to the traction device and the steel rail polishing trolley comprising the traction device, the traction device adopts the vertical traction rod structure, the requirement on the installation space position in the longitudinal direction of the steel rail is small, the whole length of the polishing trolley and the whole design layout difficulty of the polishing trolley are reduced, and the compact design of the whole structural dimension of the polishing trolley can be better realized;
(3) The traction device and the steel rail polishing trolley comprising the same adopt a vertical traction rod structure, and can not form vertical upward component force on the polishing device during traction movement, so that the traction device has better dynamic characteristics during running and polishing;
(4) According to the traction device and the steel rail polishing trolley comprising the traction device, the traction device adopts the vertical traction rod structure and is symmetrically arranged at the front end and the rear end of the polishing trolley, when the front direction of the steel rail polishing trolley is different, the traction forms of the traction device on the polishing device are completely the same, and therefore when the polishing trolley advances in the forward direction and the reverse direction for polishing, obvious difference does not exist in polishing operation effect;
(5) According to the traction device and the steel rail polishing trolley comprising the traction device, the steel rail polishing trolley adopts the independent and symmetrical mounting frame structures on the left side and the right side, and is provided with the lifting mechanism of the polishing device, so that the independent lifting of the left frame and the right frame relative to the polishing trolley can be realized, the polishing states of the frames on the two sides are not influenced, when the unilateral rail grinding heads need to avoid obstacle and lift in the operation process, only the frames on the corresponding sides need to be lifted, and the problem that the polishing trolley frequently lifts and drops as a whole in the operation process is avoided, and the polishing efficiency is influenced;
(6) According to the traction device and the rail grinding trolley comprising the traction device, the installation seat distance between the left side frame grinding unit and the right side frame grinding unit of the rail grinding trolley is designed in an adjustable mode, and the rail grinding trolleys with different grinding head numbers can be obtained by adjusting the installation distance between the grinding units so as to meet the diversified demands of customers;
(7) According to the traction device and the steel rail polishing trolley comprising the traction device, the frame of the steel rail polishing trolley adopts an independent symmetrical frame structure, the polishing unit mounting frame is positioned at the top of the trolley, the middle space and the lower space of the trolley are of an open structure, and the traction device adopts a modularized structure, so that when a problem occurs in a single-side frame or a polishing unit, a specific module can be detached and maintained in a targeted manner, the traction device can be detached, installed and maintained more conveniently, the maintenance cost is obviously reduced, and great convenience is provided for the maintenance of the subsequent polishing trolley and the polishing unit;
(8) According to the traction device and the steel rail polishing trolley comprising the traction device, the steel rail polishing trolley can accurately position the relative position relationship between the grinding wheel and the steel rail by utilizing the rail leaning device, so that the polishing effect and the polishing effect are greatly improved; the polishing machine can polish various areas of railway lines including turnouts, and has wide application range and strong adaptability; the internal space of the polishing trolley can be fully utilized, the operation process is simple, and interference between the rim surface of the rail leaning wheel and the side surface of the steel rail in the rail leaning process can be effectively avoided;
(9) According to the traction device and the steel rail polishing trolley comprising the traction device, the structure of the fireproof and dustproof device of the steel rail polishing trolley is optimized, the side doors are movably connected, so that the large-angle opening and closing of the doors can be realized, and when the internal structure of the polishing trolley is required to be maintained, the doors are directly opened, and the rear side surfaces of the doors are not provided with other baffles, so that the internal structure of the polishing trolley can be directly operated, the subsequent maintenance work of the polishing trolley is more convenient and rapid, and the maintenance cost is remarkably reduced;
(10) The traction device and the steel rail polishing trolley comprising the traction device have the advantages that the polishing unit in the steel rail polishing trolley has a transverse movement function, the polishing requirements of various lines such as a positive line and a turnout can be met, the polishing angle can be covered in a large range, and meanwhile, the polishing quality of the steel rail can be effectively improved.
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 evident that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be obtained for a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of a specific embodiment of the traction device of the present invention applied to a rail grinding wagon;
FIG. 2 is a schematic view of a partially enlarged structure of FIG. 1;
FIG. 3 is a schematic perspective view of an embodiment of a rail grinding wagon traction device of the present invention;
FIG. 4 is a schematic perspective view of one embodiment of a rail grinding wagon traction device of the present invention at another view angle;
FIG. 5 is a schematic side view of an embodiment of the rail grinding wagon traction device of the present invention;
FIG. 6 is a schematic elevational view of one embodiment of a rail grinding wagon traction device of the present invention;
FIG. 7 is a schematic side view of an embodiment of the rail grinding wagon of the present invention;
FIG. 8 is a schematic top view of one embodiment of a rail grinding wagon of the present invention;
FIG. 9 is a schematic elevational view of one embodiment of the rail grinding wagon of the present invention;
FIG. 10 is a schematic perspective view of an embodiment of a rail grinding wagon of the present invention;
FIG. 11 is a schematic perspective view of one embodiment of a rail grinding wagon of the present invention in another view;
FIG. 12 is a schematic perspective view of a carriage of one embodiment of a rail grinding wagon of the present invention;
FIG. 13 is a schematic view of a partial construction of an embodiment of a rail grinding wagon of the present invention with a portion of the top cover plate removed;
FIG. 14 is a schematic view of an internal partial enlarged construction of one embodiment of the rail grinding wagon of the present invention;
FIG. 15 is a schematic perspective view of a fire-proof and dust-proof device in an embodiment of a rail grinding wagon of the present invention;
FIG. 16 is a schematic perspective view of a fireproof and dustproof device in an embodiment of the rail grinding wagon of the present invention, in another view;
FIG. 17 is a schematic side view of a fire protection and dust protection device in one embodiment of a rail grinding wagon of the present invention;
FIG. 18 is a schematic front view of the fire-proof and dust-proof device of an embodiment of the rail grinding wagon of the present invention;
FIG. 19 is a schematic front view of the rail attachment of one embodiment of the rail grinding wagon of the present invention;
FIG. 20 is a schematic perspective view of a rail rest assembly in one embodiment of a rail grinding wagon of the present invention;
FIG. 21 is a schematic perspective view of a rail rest assembly in another view of an embodiment of a rail grinding wagon of the present invention;
FIG. 22 is a schematic side view of the rail attachment of one embodiment of the rail grinding wagon of the present invention;
In the figure: 1-a first grinding unit mounting frame, 2-a left grinding unit, 3-a middle beam, 4-a traction seat, 5-a traction guide pillar, 6-a grinding trolley lifting mechanism, 7-a traction guide sleeve, 8-a traveling wheel mounting seat, 9-a traveling wheel, 10-a wheel track adjusting guide pillar, 11-a wheel track adjusting guide sleeve, 12-a wheel track adjusting mechanism, 13-a guide sleeve connecting part, 14-a grinding device lifting guide pillar, 15-a grinding device lifting mechanism, 16-a fireproof and dustproof device, 17-a right grinding unit, 18-a second grinding unit mounting frame, 19-a grinding device lifting guide sleeve, 20-a connecting seat, 21-a grinding unit mounting seat, 22-a traction connecting plate, 23-an upper mounting seat and 24-a lower mounting seat, 25-rail wheel, 26-limit sleeve, 27-traversing mechanism I, 30-rail, 100-grinding carriage, 200-grinding carriage, 300-carriage, 400-fireproof and dustproof device, 401-longitudinal beam, 402-middle baffle, 403-cover plate, 404-hinge, 405-door, 406-side fireproof curtain, 407-dust collecting curtain, 408-door buffer mechanism, 409-mounting seat, 410-end baffle, 411-end fireproof curtain, 412-handle, 500-locking device, 600-grinding unit, 700-rail device 701-mounting plate, 702-traversing guide post, 703-traversing guide sleeve, 704-traversing mechanism II, 705-plumb guide post, 706-plumb mechanism, 707-rail wheel mounting seat, 708-rail wheel, 709-first elastic component, 710-second elastic component, 711-dustproof baffle, 712-baffle, 713-first connecting plate, 714-second connecting plate, 715-vertical moving guide post, 716-vertical moving guide sleeve, 800-traction device, 810-front traction device, 820-rear traction device, 801-pin shaft, 802-traction pin shaft, 803-traction pin shaft mounting seat, 804-traction pin shaft cover plate, 805-vertical beam and 900-lifting device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
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 "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, 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 thus are not to 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.
Embodiments of the traction device and rail grinding wagon including the same of the present invention are shown in fig. 1 to 22, and the present invention will be further described with reference to the drawings and the embodiments.
Example 1
As shown in fig. 1 to 6, in one embodiment of the traction apparatus 800, the traction apparatus 800 is installed at a lower portion of the sanding car 100 for transmitting traction force of the sanding car 100 to the sanding car 200. As shown in fig. 1, the traction device 800 includes a front traction device 810 and a rear traction device 820 symmetrically disposed at both front and rear ends in the working direction (direction L in the drawing) of the grinding wagon 200. The traction device 800 further adopts a vertical traction structure, and includes: traction seat 4, traction guide post 5, traction guide sleeve 7, traction connecting plate 22 and pin 801. The traction seat 4 is arranged at the bottom of the grinding wagon 100, and the traction guide sleeve 7 is sleeved on the traction guide post 5. The upper end of the traction guide post 5 is mounted on the traction seat 4 through a pin shaft 801, and the traction guide sleeve 7 is connected to the frame 300 of the polishing trolley 200 through a traction connecting plate 22. The traction guide post 5 can swing transversely along the steel rail 30 by taking the pin shaft 801 as a rotating shaft, and when the traction guide post 5 swings, the traction guide sleeve 7 can move up and down along the traction guide post 5. The traction force of the grinding wagon 100 is transmitted to the frame 300 through the traction seat 4, the traction guide post 5, the traction guide sleeve 7 and the traction connecting plate 22, so that the grinding wagon 200 is driven to operate.
As shown in fig. 3, the traction device 800 further includes a traction pin 802, one end of the traction pin 802 is movably connected to the traction pin mounting seat 803 of the traction guide sleeve 7, and the other end is connected to the traction connection plate 22 (the diameter of the other end of the traction pin 802 may be larger than the aperture of the traction connection plate 22, or the other end of the traction pin 802 may be screwed into a nut to realize movable connection between the traction pin 802 and the traction connection plate 22). One end of the traction connection plate 22 is connected to the center sill 3 of the frame 300, and the traction connection plate 22 can rotate relative to the traction pin mounting seat 803 by taking the traction pin 802 as a rotation shaft. As shown in fig. 2, one end of the traction connection plate 22 is further connected to a vertical beam 805 of the center sill 3.
As shown in fig. 4, the traction device 800 further includes a traction pin cover 804, and a shaft head portion at one end of the traction pin 802 is installed in a clamping groove of the traction pin mounting seat 803, and is fixed by the traction pin cover 804, and the traction pin 802 can rotate relative to the traction pin mounting seat 803 along an axial direction.
The traction device 800 adopting the vertical installation structure mainly comprises four parts of a traction seat 4, a traction guide post 5, a traction guide sleeve 7 and a traction connecting plate 22. The traction seat 4 is fixed at the bottom of the grinding wagon 100 and is connected with the traction guide post 5 through a pin shaft 801, one end of the traction connecting plate 22 is connected with the traction guide sleeve 7, and the other end of the traction connecting plate is connected with the grinding device. When the polishing device is lifted and lowered, the traction guide sleeve 7 moves up and down relative to the traction guide post 5, the traction seat 4 is connected with the traction guide post 5 through the pin shaft 801, and the spherical hinge structure of the traction connecting plate 22 can effectively release the rotational freedom degree of the traction device 800. The axle head portion of the towing pin 802 may take the form of a sphere, hemisphere, cylinder, etc. The guide sleeve and guide post combined structure of the traction guide post 5 and the traction guide sleeve 7 can also adopt a guide rail and slide block combination and other alternative structures such as a gear and rack combination to realize the function of a moving pair.
Example 2
As shown in fig. 7 to 11, an embodiment of a rail grinding wagon is installed at a lower portion of the grinding wagon 100, and the grinding wagon 200 specifically includes: frame 300, fire and dust protection device 400, locking device 500, sanding unit 600, lifting device 900, and traction device 800 as described in example 1. The frame 300 includes a center sill 3 and polishing unit installation frames which are arranged in a symmetrical structure on both left and right sides of the center sill 3 in the operation direction of the polishing trolley 200 (the direction L shown in fig. 7 to 11) and can be independently lifted. As shown in fig. 13, the polishing unit mounting frame further includes a first polishing unit mounting frame 1 (for mounting the left polishing unit 2) and a second polishing unit mounting frame 18 (for mounting the right polishing unit 17). The two traction devices 800 are symmetrically arranged at the front and rear ends along the operation direction of the grinding wagon 200, and the traction devices 800 are installed at the bottom of the grinding wagon 100 and connected with the center sill 3. The fireproof and dustproof apparatus 400 is mounted on the carriage 300, and the polishing unit 600 is mounted on the polishing unit mounting frame and disposed inside the fireproof and dustproof apparatus 400. One end of the lifting device 900 is connected to the bottom of the sanding car 100, and the other end is connected to the frame 300, and the sanding car 200 can be fixed to the bottom of the sanding car 100 by the locking device 500. The rail polishing trolley described in embodiment 2 has multiple functions of adjusting the track of the running wheels, meeting the requirements of different polishing units, avoiding barriers in time in the polishing process, and the like, and can meet the polishing requirements of various circuits including positive lines, turnouts, and the like.
As shown in fig. 12, the frame 300 further includes a running wheel mounting seat 8, a running wheel 9, a track adjusting guide post 10, a track adjusting guide sleeve 11, and a track adjusting mechanism 12. The two wheel track adjusting guide posts 10 are respectively and fixedly connected to the front end and the rear end of the middle beam 3 along the operation direction of the polishing trolley 100, and the two ends of the wheel track adjusting guide posts 10 along the length direction (the direction shown as W in figure 12) are respectively sleeved with a wheel track adjusting guide sleeve 11. One end of the wheel track adjusting mechanism 12 is connected to a connecting seat 20 on the middle beam 3 through a bolt, the other end of the wheel track adjusting mechanism is fixed on the wheel track adjusting guide sleeve 11 through a bolt, and the running wheel 9 is arranged below the wheel track adjusting guide sleeve 11 through a running wheel mounting seat 8. Limiting sleeves 26 are further arranged at two ends of the wheel track adjusting guide post 10 and used for axially limiting the wheel track adjusting guide sleeve 11. The track adjusting guide sleeve 11 is driven to transversely move on the track adjusting guide post 10 through the extension and retraction of the track adjusting mechanism 12, and the running wheel 9 connected with the track adjusting guide sleeve 11 is further driven to transversely move, so that the track adjustment of the running wheel 9 is realized.
The frame 300 further includes a polishing device lifting guide post 14 and a polishing device lifting guide sleeve 19 sleeved outside the polishing device lifting guide post 14. The upper part of the polishing device lifting guide post 14 is connected to the end part of the polishing unit installation frame along the operation direction of the polishing trolley 200, and the polishing device lifting guide sleeve 19 is fixedly connected with the wheel tread adjusting guide sleeve 11 positioned at the same end. The grinding device lifting guide sleeve 19 is welded with the wheel track adjusting guide sleeve 11, the grinding device lifting guide posts 14 are connected with the first grinding unit mounting frame 1 and the second grinding unit mounting frame 18, and two grinding device lifting guide posts 14 are arranged in front of and behind the first grinding unit mounting frame 1 and the second grinding unit mounting frame 18, and the four grinding device lifting guide posts 14 are arranged in a parallel mode in a pairwise opposite mode. The frame 300 further includes a polishing device lifting mechanism 15, one ends of the two polishing device lifting mechanisms 15 are respectively connected to the front and rear ends of the polishing unit installation frame along the operation direction of the polishing trolley 200, and the other ends are connected to the tread adjusting guide sleeves 11 located on the same side. The front and rear ends of the polishing unit installation frame along the operation direction of the polishing trolley 200 are provided with pairs of polishing device lifting guide posts 14, and a polishing device lifting mechanism 15 is arranged between the two polishing device lifting guide posts 14. When the grinding device lifting mechanism 15 moves in a telescopic manner, the grinding device lifting guide post 14 is driven to vertically move up and down relative to the grinding device lifting guide sleeve 19 (in the direction shown as H in fig. 12), so that the lifting movement of the grinding unit mounting frame relative to the center sill 3 is realized.
The embodiment of the invention adopts the design of the four lifting guide posts 14 of the polishing device and the lifting mechanism 15 of the double polishing device, so that the first polishing unit mounting frame 1 and the second polishing unit mounting frame 18 can stably move, thereby effectively reducing the vibration of the polishing unit 600 caused by the expansion and contraction of the lifting mechanism 15 of the polishing device. Meanwhile, the polishing trolley frame in the prior art adopts an integral frame type structure, and can only be lifted or fallen integrally, so that the polishing trolley frame needs to be lifted integrally under the condition that the unilateral rail grinding head needs to be lifted, and the polishing operation efficiency is greatly influenced. The rail polishing trolley described in embodiment 2 adopts a symmetrical frame structure with independent left and right sides, and the first polishing unit installation frame 1 and the second polishing unit installation frame 18 can be lifted independently, so that the corresponding polishing unit installation frame and polishing unit 600 can be lifted independently when the rail polishing trolley encounters a single-side obstacle in the operation process, the independence of the movement of the left and right side polishing unit installation frames is realized, the frequent integral lifting of the polishing trolley 200 in the operation process is avoided, and the effective obstacle avoidance is realized on the premise of avoiding lifting the polishing trolley 200, thereby the safety of polishing operation is improved, and the polishing operation efficiency is improved.
The frame 300 further includes guide sleeve connecting portions 13, and the two guide sleeve connecting portions 13 are respectively disposed at front and rear ends of the polishing unit mounting frame along the operation direction of the polishing trolley 200, and are connected between the two polishing device lifting guide sleeves 19 located at the same end. The wheel track adjusting guide post 10 is fixedly connected with the middle beam 3 through a connecting seat 20, and the front end and the rear end of the frame 300 along the operation direction of the polishing trolley 200 are provided with paired wheel track adjusting mechanisms 12. One end of the wheel track adjusting mechanism 12 is connected to the connecting seat 20, and the other end is connected with the wheel track adjusting guide sleeve 11 positioned on the same side. The track adjusting guide sleeve 8 is driven to move on the track adjusting guide post 7 through the extension and contraction of the track adjusting mechanism 10, and the running wheel 9 connected with the track adjusting guide sleeve 8 is further driven to move, so that the track adjustment of the running wheel 9 is realized. After the tread adjustment of the running wheel 9 is completed, the position of the tread adjustment guide sleeve 8 on the tread adjustment guide post 7 is locked through bolt fastening. The rail grinding small wheel distance in the prior art is basically fixed, so that the rail grinding small wheel distance can only work on a rail line with the corresponding rail distance. The rail grinding wagon described in embodiment 2, the carriage 300 has various functions of adjusting the track width of the running wheels 9, meeting the number requirements of different grinding units 600, avoiding barriers in time in the grinding process, and the like, is suitable for various types of rail grinding wagon, and the track width changing function of the running wheels can be adapted to meet the grinding requirements of different line track gauges (standard rail, wide rail and narrow rail).
The first and second sanding unit mounting frames 1 and 18 can be lifted and lowered independently of each other so that the respective sanding unit mounting frames can be lifted individually when the sanding trolley 200 encounters a single-sided obstacle during operation. The first polishing unit installation frame 1 and the second polishing unit installation frame 4 are welded with polishing unit installation seats 21, the polishing units 600 are fixed on the polishing unit installation seats 21 through bolt connection, and the installation quantity of the polishing units 600 is changed by adjusting the relative positions of the polishing unit installation seats 21. The first grinding unit mounting frame 1 or the second grinding unit mounting frame 4 is mounted with 2 to 8 and relatively independent grinding units 300. The polishing unit mounting bases 2 are welded to the first polishing unit mounting frame 1 and the second polishing unit mounting frame 4 in pairs opposite to each other and symmetrically to each other. The first polishing unit installation frame 1 and the second polishing unit installation frame 4 are respectively welded with the polishing unit installation seat 2, the polishing units 600 are fixed on the corresponding polishing unit installation frames through bolt connection, the number of mountable polishing units 600 can be changed by adjusting the relative positions of the polishing unit installation seats 2 during manufacturing, and each side frame can be provided with 2-8 relatively independent polishing units 600. Therefore, the number of grinding heads of the steel rail grinding wagon can be flexibly adjusted according to actual engineering requirements, and the requirement of diversified clients can be met for the structural design of fixed number of grinding heads of the grinding wagon compared with the prior art. The rail polishing trolley described in embodiment 2 adopts an independent symmetrical polishing unit mounting frame structure, and when a problem occurs in a single-side mounting frame or polishing unit 600, a specific module can be detached and maintained in a targeted manner, so that the rail polishing trolley can be detached, installed and maintained more conveniently, and the maintenance cost is remarkably reduced. Meanwhile, the polishing trolley frame in the prior art adopts an integral frame closed structure, and rectangular cross beams are arranged at the side parts and the middle part of the trolley, so that the structure can cause great difficulty in maintenance of the polishing trolley. The rail polishing trolley described in embodiment 2 has the advantages that the polishing unit mounting frame is located at the top of the trolley, the space in the middle and the space in the lower part of the trolley are of an open structure, and in addition, a modularized structure is adopted, when a problem occurs in a single-side frame or a polishing unit, a specific module can be detached and maintained in a targeted manner, the disassembly, the installation and the maintenance can be more convenient, the maintenance cost is obviously reduced, and great convenience is provided for the maintenance of the follow-up polishing trolley and the polishing unit.
As shown in fig. 11, the lifting device 900 further includes a grinding wagon lifting mechanism 6, an upper mounting base 23, and a lower mounting base 24. One end of the polishing trolley lifting mechanism 6 is fixed to the bottom of the polishing trolley 100 through an upper mounting seat 23, and the other end is fixed to the running wheel mounting seat 8 through a lower mounting seat 24. The whole lifting and lowering of the polishing trolley 200 is controlled by the polishing trolley lifting mechanism 6.
As shown in fig. 15 to 18, the fireproof and dustproof apparatus 400 further includes a middle barrier 402, a cover plate 403, a door 405, a dust collecting curtain 407, an end barrier 410, and a fireproof curtain. The cover plates 403 are provided at both left and right sides of the dust curtain 407 in the operation direction of the grinding carriage 200 (the direction shown as L in fig. 15 to 17), and are mounted on the frame 300 of the grinding carriage 200. One side of the dust curtain 407 is attached to the bottom of the body of the sanding car 100 and the opposite side is attached to the cover plate 403. The vehicle doors 405 are provided on both left and right sides of the sanding carriage 200 in the working direction and are connected to the cover plate 403 by hinges 404. The middle baffle 402 is suspended below the carriage 300, and the end baffles 410 are disposed at front and rear ends of the polishing carriage 200 in the working direction and mounted on the carriage 300. A fire curtain is attached to the lower portion of both the door 405 and the end flap 410. The rail grinding wagon described in embodiment 2 has the functions of preventing fire hazards caused by grinding spark splashing, and reducing environmental pollution by facilitating collection of grinding dust, etc. the fireproof and dustproof device 400 is used for the rail grinding wagon.
The dust curtain 407 has a top opening and is connected to the bottom of the body of the grinding wagon 100 through the stringers 401 for connecting a dust collecting passage and collecting dust generated during the grinding process into the dust collecting device through the dust collecting passage. As shown in fig. 9, the stringers 401 are provided on top of the dust curtain 407 and are mounted under the sanding vehicle 100. The longitudinal beam 401 further adopts a hollow beam structure with upper and lower ends open, as shown in fig. 15. The end shield 410 is further provided with a mounting seat 409, and the door 405 is provided with a locking seat at a position corresponding to the mounting seat 409. When the door 405 is closed, locking of the door 405 is achieved by inserting locking pins into the mounting seats 409 and locking seats. The door 405 is connected to the cover 403 by a hinge 404, so that the door 405 can pivot about the hinge 404. The door 405 is provided with a handle 412, so that the door 405 can be directly opened and closed by the handle 412, and the door 405 can be opened and closed at a large angle. When the door 405 is closed, the door 405 is locked by a locking pin. The fireproof and dustproof apparatus 400 further includes a door buffer mechanism 408, one end of the door buffer mechanism 408 being connected to a mount 409, and the other end being connected to the door 405. The wide angle opening and closing of the door 405 can be controlled by the door buffer mechanism 408 to facilitate maintenance. The cushioning effect of the door cushioning mechanism 408 allows the door 405 to open and close more smoothly. The door damper mechanism 408 may specifically take the form of an oil cylinder, an air cylinder, an electric cylinder, a spring, etc. In the working process of the polishing trolley 100, when the internal structure of the polishing trolley 200 such as the polishing unit 600 is required to be inspected and maintained, the back side surface of the vehicle door 405 is opened, and no other structure is shielded, so that the internal structure of the polishing trolley 200 can be directly operated, and the maintenance of the polishing trolley 200 is more convenient and quick.
The hinge 404 further includes a hinge mounting seat, a hinge joint, and a rotating shaft, where the hinge mounting seat is disposed on a bottom side of the cover plate 403. One end of the hinge is fixed to the rotating shaft, and the other end is fixed to the top side of the door 405. When the door 405 is opened, the hinge joint can rotate around the hinge mount, thereby realizing a large-angle opening and closing of the door 405. In addition to the hinge connection described in embodiment 2, the door 405 and the cover 403 may be opened and closed at a large angle by using other movable connection methods.
The fire protection curtain further includes a side fire protection curtain 406 and an end fire protection curtain 411, the side fire protection curtain 406 being suspended from a lower portion of the door 405 and the end fire protection curtain 411 being suspended from a lower portion of the end flap 410. The cover plate 403 at the top of the fireproof and dustproof device 400 is connected with the left and right polishing unit mounting frames through bolts, so that the whole coverage of the polishing trolley 200 is realized, and the tightness and the good dust collecting effect of the polishing trolley 200 are ensured. The cover plate 403, the vehicle door 405, the dust collecting curtain 407, the end baffle 410, the side fireproof curtain 406 and the end fireproof curtain 411 form a local sealing structure of the polishing trolley 200, so that polishing dust generated in the working process can be collected into the dust collecting device through the dust collecting channel. The fireproof and dustproof device 400 described in embodiment 2 makes the structure of the polishing trolley 200 more sealed by the end and side plate structures, the dust collecting curtain 407 and the fireproof curtain, and polishing dust generated in the operation process can be collected into the dust collecting device through the dust collecting channel, so that the damage of dust to operators, the pollution to the environment and the damage to equipment are reduced.
The fire curtain is assembled and connected with the plate structure (including the door 405 and the end baffle 410) by means of a perforated pin through small holes formed in the corresponding positions, and then a round pin and a cotter pin (not shown) are respectively inserted into the holes at the two ends of the perforated pin to fix the fire curtain. The pin structure is used, so that the fire-proof curtain is very flexible and convenient to assemble and disassemble, and the replacement time can be effectively saved when the fire-proof curtain is replaced, and the quick assembly and disassembly of the fire-proof curtain are realized. The side fireproof curtains 406 and the end fireproof curtains 411 which are made of flexible materials are respectively arranged at the lower parts of the vehicle door 405 and the end baffle 410, can adapt to different ballast heights, and effectively prevent sparks (high-temperature scrap iron) generated when the grinding wheel grinds the steel rail from splashing, and injure facilities beside the steel rail or fire hazard caused by igniting surrounding materials of the rail.
The middle baffle 402 further comprises a plurality of sets of mutually independent cell baffles. Each set of unit baffles is suspended and mounted on the frame 300 of the polishing trolley 200 by a quick-connect ring after being integrally connected through flexible connection, so that polishing sparks on one side are prevented from splashing on the polishing unit 600 on the other side, and interference with the middle baffle 402 during deflection of the polishing unit 600 is avoided. The middle baffle 402 is composed of a plurality of groups of small unit baffles independent of each other, and each group of unit baffles is connected through a quick connection ring and then hung and installed on the frame 300 of the polishing trolley 200, and has a main function of preventing polishing sparks on one side from splashing on the polishing unit 600 on the other side. The hanging connection structure of the multiple groups of unit baffles has certain flexibility, and when the polishing units 600 at two sides of the polishing trolley 200 deflect to a certain angle for polishing, interference between the polishing units 600 and the middle baffle 402 during deflection can be effectively avoided, so that the polishing units 600 are damaged.
The end baffle 11 further comprises a large sub-baffle and a small sub-baffle which are arranged in the horizontal direction, wherein the upper part of the relatively large sub-baffle is connected with the frame 300 of the polishing trolley 200 through bolts, and the relatively small sub-baffle is connected with the frame 300 through bolts.
The dust collecting curtain 407 is further made of flexible materials, the dust collecting curtain 407 is connected with the longitudinal beam 401 through a circular ring pin, the circular ring pin comprises a circular ring connected with the dust collecting curtain 407, one end of the circular ring is connected with the circular ring, and the other end of the circular ring is connected with an open-pore cylinder connected with the longitudinal beam 401. Because the dust collecting curtain 407 at the top of the fireproof and dustproof device 400 is made of soft materials, when the polishing trolley 200 is lifted or lowered, the dust collecting curtain 407 can be flexibly folded, so that the lifting function of the frame 300 of the polishing trolley 200 is not affected.
The door 405 and the side fire-resistant curtain 406 are further connected by a hole pin, one end of which is inserted into the mounting holes of the door 405 and the side fire-resistant curtain 406, and a circular pin, which is inserted into the other end of the hole pin with a through hole. The other end of the perforated pin may be threaded and a fixed connection of the door 405 to the side fire curtain 406 is achieved by a retaining nut. The other end of the perforated pin may also be designed with a through hole and the fixed connection of the door 405 to the side fire curtain 406 is achieved by inserting a cotter pin.
As a preferred embodiment of the present invention, the cover plate 403, the end baffle 410, the door 405, and the middle baffle 402 are all made of aluminum, so that the lightweight design of the fireproof and dustproof device 400 is effectively realized. In order to ensure that the structural rigidity meets the requirements of practical engineering application, the reinforced structures such as the longitudinal beam 401, the vehicle door 405 and the like are all steel structures. The side fire-resistant curtain 406 and the end fire-resistant curtain 411 are further made of special fire-resistant curtains made of high-chromium high-silicon materials, and compared with the traditional fire-resistant cloth materials, the special fire-resistant curtains have higher heat resistance and longer service life.
A rail arrangement 700 is also provided between adjacent two sanding units 600 of the first and/or second sanding unit mounting frame 1, 18, as shown in fig. 14. The traversing amount of the traversing mechanism one 27 is obtained by calculating the relative variation of the initial position of the rail rest device 700 and the moving position behind the rail rest and combining the initial position of the traversing mechanism one 27 of the polishing unit 600.
As shown in fig. 19 to 22, the rail device 700 further includes a mounting plate 701, a traversing guide post 702, a traversing guide sleeve 703, a traversing mechanism two 704, a traversing guide sleeve guide post 705, a traversing mechanism 706, a rail wheel mounting seat 707, a rail wheel 708, a first elastic member 709, and a second elastic member 710. The two mounting plates 701 are disposed opposite to each other and fixed to the frame 300 of the grinding carriage 200, and the traversing guide 702 is connected between the two mounting plates 701. The traversing guide post 702 is sleeved with a traversing guide sleeve 703, one end of the traversing mechanism II 704 is connected with the mounting plate 701, and the other end is connected to the traversing guide sleeve 703. One end of the first elastic member 709 is connected to the mounting plate 701, and the other end is connected to the traverse guide 703. One end of the vertical moving guide sleeve guide post 705 is connected with the horizontal moving guide sleeve 703, and the other end extends downwards and is connected to a rail wheel mounting seat 707, and a rail wheel 708 is mounted on the rail wheel mounting seat 707. One end of the vertical moving mechanism 706 is connected with the horizontal moving guide sleeve 703, and the other end is connected with the rail wheel mounting seat 707. The first elastic member 709 is connected between the mounting plate 701 and the traverse guide 703, and the second elastic member 710 is connected between the traverse guide 703 and the rail wheel mount 707. When the acting force of the second traversing mechanism 704 is unloaded, the first elastic component 709 makes the traversing guide sleeve 703 receive the acting force pointing to the track-leaning direction of the track-leaning wheel 25 (the direction shown as F in fig. 20 and 21), so as to realize the leaning of the track-leaning wheel 25 to the side surface of the steel rail 30. One end of the vertical moving guide sleeve guide post 705 is connected with the horizontal moving guide sleeve 703, and the other end extends downwards and is connected to the rail wheel mounting seat 707, and the rail wheel 25 is mounted on the rail wheel mounting seat 707. One end of the vertical moving mechanism 706 is connected with the horizontal moving guide sleeve 703, and the other end is connected with the rail wheel mounting seat 707.
The second elastic member 710 is connected between the traversing guide 703 and the rail wheel mount 707, and the vertical shifting mechanism 706 provides vertical downward pressure to the rail wheel 25. When the rail is not needed, the second resilient member 710 tightens and pulls the rail wheel 25 away from the top surface of the rail 30. A total of four sets of rail devices 700 are installed on the grinding carriage 200, and are respectively installed on the frames 300 at the left and right sides of the grinding carriage 200. Before lowering and lifting the rail rest 700, the second traversing mechanism 704 extends to cause the rail wheel 25 to be displaced from the rail 30, and after lowering the rail rest 700 is tensioned by the first (horizontal) spring 709 and provides a side rail rest force, and when lowering, a vertical lowering force is provided by the vertical traversing mechanism 706. When the rail is not needed, the second (vertical) spring 710 tightens and pulls the rail wheel 25 away from the top surface of the rail 30. As an exemplary embodiment of the present invention, the first elastic member 9 and the second elastic member 10 may specifically employ springs.
The rail device 700 further comprises two traversing guide posts 702 arranged parallel to each other in a horizontal direction (direction X in fig. 19) between the two mounting plates 701, and a first elastic member 709 is arranged between the two traversing guide posts 702. The two traverse guide sleeves 703 are respectively sleeved outside the two traverse guide posts 702, and the two traverse guide sleeves 703 are connected with each other through a first connecting plate 713.
A second connecting plate 714 is further connected between the two transverse moving guide sleeves 703 along the vertical direction, and the second connecting plate 714 is vertically arranged on the surface of the first connecting plate 713. One end of the second traversing mechanism 704 is connected to the mounting plate 701, and the other end is connected to the first connecting plate 713. One end of the first elastic member 709 is connected to the mounting plate 701, and the other end is connected to the second connection plate 714. The second traversing mechanism 704 is disposed between the two traversing guide posts 702, the first elastic component 709 is disposed between the two traversing guide posts 702, and the second traversing mechanism 704 and the first elastic component 709 are disposed on different sides of the first connecting plate 713, respectively.
One end of the vertical movement guide sleeve guide post 705 is a vertical movement guide post 715, and the other end is a vertical movement guide sleeve 716 sleeved on the vertical movement guide post 715. In embodiment 2, the lower end of the vertical movement guide post 715 is connected to the rail wheel mounting seat 707, the upper end of the vertical movement guide post 716 is connected to the lateral movement guide sleeve 703, or the upper end of the vertical movement guide post 715 is connected to the lateral movement guide sleeve 703, and the lower end of the vertical movement guide post 716 is connected to the rail wheel mounting seat 707. The traversing guide sleeve 703 is driven by the traversing mechanism II 704 to move on the traversing guide post 702, and the sagging guide post 715 is driven by the sagging mechanism 706 to move in the sagging guide sleeve 716.
The rail device 700 comprises two vertically disposed (as shown by Y in fig. 19) vertically parallel to each other between the traversing guide 703 and the rail wheel mount 707. One end of the vertically moving guide sleeve guide post 705 is connected to the bottom of the horizontally moving guide sleeve 703, and a vertically moving mechanism 706 is disposed between the two vertically moving guide sleeve guide posts 705. A dustproof baffle 711 is arranged at two sides perpendicular to the arrangement direction of the two vertical moving guide sleeve guide posts 705, a partition 712 is arranged between the two dustproof baffles 711, and the vertical moving guide sleeve guide posts 705 and the vertical moving mechanism 706 penetrate through the partition 712. As an exemplary embodiment of the present invention, when the vertical movement guide sleeve guide post 705 specifically adopts a guide post and guide sleeve combined structure, the vertical movement guide sleeve guide post 705 includes a vertical movement guide post and a vertical movement guide sleeve sleeved outside the vertical movement guide post, and the partition 712 is fixed with the vertical movement guide sleeve as a whole for fixing the relative position of the vertical movement guide post.
The polishing trolley 200 is provided with four sets of rail rest devices 700, two sets of polishing unit mounting frames on each side of the carriage 300, as shown in fig. 14. As shown in fig. 11, the sanding carriage 200 includes 8 sanding units 600 in total in two columns in the working direction, each column including 4 sanding units 600, divided into an odd side and an even side by serial numbers from 1 to 8. For the polishing units 600 on the odd sides, the rail leaning device 700 is respectively arranged between the polishing units 600 on the 1 st and the 3 rd sides and between the polishing units 600 on the 5 th and the 7 th sides, namely, one rail leaning device 700 is responsible for the sideslip control of two adjacent polishing units 600, the polishing units 600 on the 5 th side do not work when performing turnout polishing, and the arrangement modes of the polishing units 600 on the even sides are the same (the rail leaning device 700 is respectively arranged between the polishing units 600 on the 2 nd and the 4 th sides and between the polishing units 600 on the 6 th and the 8 th sides). One rail device 700 may be provided for each polishing unit 600 on a single side, and each rail device 700 outputs rail data to the polishing unit 600, thereby realizing accurate lateral movement of the polishing unit 600. In the present embodiment, the rail device 700 has a structure of 2 rail devices 700 on one side, considering that the weight and length of the sanding carriage 200 are increased.
When the railway line is polished, the rail rest device 700 is in a locked state and does not drop down to participate in polishing operation. When the switch area is polished, the rail rest device 700 is lowered to participate in the polishing operation. When polishing the turnout, the polishing trolley moves to the outside of the polishing interval, and the button of the polishing trolley 200 is pressed down, so that three actions are needed to be realized: the locking cylinder (oil cylinder, electric cylinder and the like can be adopted to replace) of the locking device 500 acts, and the locking air hook is retracted; lowering the sanding trolley 200 by releasing the lifting device 900; the second traversing mechanism 704 and the vertical traversing mechanism 706 of the rail-abutting device 700 operate to abut the rail wheel 25 against the rail 30.
An embodiment of the method for operating the rail device 700 specifically includes the following steps:
S11), the second traversing mechanism 704 of the rail leaning device 700 extends out to enable the rim surface of the rail leaning wheel 25 to move towards the middle position of the two steel rails 30 so as to stagger the rim surface of the rail leaning wheel 25 and the side surfaces of the steel rails 30;
S12) the vertical movement mechanism 706 of the rail leaning device 700 works, the vertical movement mechanism 706 stretches out, and the rail leaning wheel 25 is pressed down to the top surface of the steel rail 30 by controlling the working pressure of the vertical movement mechanism 706;
S13) releasing the acting force of the second traversing mechanism 704, enabling the second traversing mechanism 704 to float, realizing the pressing of the side surface of the steel rail 30 by means of the tensioning force of the first elastic component 709, and feeding back the position state of the second traversing mechanism 704 (a displacement sensor is arranged on the second traversing mechanism 704);
S14) calculating the relative change of the initial position of the second traversing mechanism 704 and the moving position behind the rail, and combining the initial position of the first traversing mechanism 27 of the polishing unit 600 to obtain the traversing amount of the first traversing mechanism 27, thereby realizing the automatic setting of the traversing amount of the second traversing mechanism 704 of the polishing unit 600.
When the switch area is polished, the lateral movement amount of the polishing unit 600 is adjusted in real time according to the output amount of the rail rest device 700. The initial length of the second traversing mechanism 704 is L0, and the length of the second traversing mechanism 704 after leaning on the rail is L1, and the change amount is L1-L0. The initial traversing amount of the traversing mechanism one 27 of the polishing unit 600 is S0, and when the length of the traversing mechanism two 704 is changed to L1-L0, the traversing amount of the traversing mechanism one 27 of the polishing unit 600 is adjusted to S0+ (L1-L0). When the switch polishing is performed, the traversing amount of the polishing unit 600 is adjusted in real time according to the length variation of the traversing mechanism two 704 of the rail rest device 700.
Before the rail rest 700 is lowered or lifted, the second traversing mechanism 704 is extended to misalign the rail rest wheel 25 with the rail 30. When the rail device 700 is lowered, the first elastic member 709 is pulled to provide a lateral rail pressing force, and the vertical moving mechanism 706 provides a vertical lowering force. When the rail rest 700 is not in need of a rail rest operation, the second elastic member 710 tightens and pulls the rail wheel 25 away from the rail surface of the rail 30.
The grinding wagon 200 is locked to the lower part of the wagon body of the rail grinding wagon by the locking device 500. Further comprising the following steps before step S10):
when the grinding carriage 200 is in an unlocked state (the locking air hook position sensor of the grinding carriage 200 feeds back an unlocking state signal of the grinding carriage 200), the lifting cylinder of the grinding carriage 200 stretches out when the signal is obtained, and the grinding carriage 200 descends by self weight until the running wheels 9 contact the rail surface of the steel rail 30. When the running wheels 9 of the grinding carriage 200 drop to the rail surface of the rail 30, the grinding unit 600 performs analog test grinding (i.e., performs pressing, traversing, deflecting, etc. actions of the respective grinding heads, but does not perform grinding to test whether the operation of the grinding unit 600 is normal) and starts to prepare for switch grinding.
In this embodiment, the lifting mechanism 6, the track adjusting mechanism 12, the lifting mechanism 15, the first traversing mechanism 27, the second traversing mechanism 704, the vertically moving mechanism 706, etc. may specifically take the form of an oil cylinder, an air cylinder, an electric cylinder, etc. The track adjusting guide post 10 and the track adjusting guide sleeve 11, the grinding device lifting guide post 14 and the grinding device lifting guide sleeve 19, the traversing guide post 702 and the traversing guide sleeve 703, the sagging guide sleeve guide post 705, and the guide sleeve and guide post combination structure of the sagging guide post 715 and the sagging guide sleeve 716 can also adopt a guide rail and slide block combination, a gear and rack combination and other alternative structures to realize the function of a moving pair.
By implementing the traction device described in the specific embodiment of the invention and the technical scheme of the rail grinding trolley comprising the traction device, the following technical effects can be achieved:
(1) According to the traction device and the steel rail polishing trolley comprising the traction device, which are described in the specific embodiment of the invention, the traction device adopts a vertical installation structure, the front end and the rear end of a single polishing trolley are respectively provided with one traction seat, the traction seat and the traction guide post are connected with the spherical hinge structure of the traction connecting plate through a pin shaft, so that the rotation freedom degree of the traction device can be effectively released, the load shedding effect of the traditional cable-stayed traction rod on the polishing trolley is avoided, and the condition that the polishing trolley falls down in extreme conditions is effectively avoided;
(2) The traction device and the steel rail polishing trolley comprising the traction device are described in the specific embodiment of the invention, the traction device adopts a vertical traction rod structure, the requirement on the installation space position in the longitudinal direction of the steel rail is small, the whole length of the polishing trolley and the whole design layout difficulty of the polishing trolley are reduced, and the compact design of the whole structural dimension of the polishing trolley can be better realized;
(3) The traction device and the steel rail polishing trolley comprising the traction device are described in the specific embodiment of the invention, the traction device adopts a vertical traction rod structure, and a vertical upward component force is not formed on the polishing device during traction movement, so that the traction device has better dynamic characteristics during running and polishing;
(4) The traction device and the steel rail polishing trolley comprising the traction device are described in the specific embodiment of the invention, the traction device adopts a vertical traction rod structure and is symmetrically arranged at the front end and the rear end of the polishing trolley, when the advancing directions of the steel rail polishing trolley are different, the traction forms of the traction device on the polishing device are completely the same, so that when the polishing trolley advances in the forward and the backward directions for polishing, the polishing operation effects are not obviously different;
(5) According to the traction device and the steel rail polishing trolley comprising the traction device, which are described in the specific embodiment of the invention, the steel rail polishing trolley adopts an independent and symmetrical mounting frame structure on the left side and the right side, and is provided with a polishing device lifting mechanism, so that the independent lifting of the left frame and the right frame relative to the polishing trolley can be realized, the polishing states of the two side frames are not influenced, when the unilateral rail grinding heads need to avoid obstacle and lift in the operation process, only the frames on the corresponding sides need to be lifted, and the problem that the polishing trolley frequently lifts and falls in the whole operation process and influences the polishing efficiency is avoided;
(6) According to the traction device and the steel rail grinding trolley comprising the traction device, the installation seat distance between the grinding units of the left side frame and the right side frame of the steel rail grinding trolley is designed in an adjustable mode, and the steel rail grinding trolleys with different grinding head numbers can be obtained by adjusting the installation distance between the grinding units so as to meet the diversified demands of customers;
(7) According to the traction device and the steel rail polishing trolley comprising the traction device, the frame of the steel rail polishing trolley adopts an independent symmetrical frame structure, the polishing unit mounting frame is positioned at the top of the trolley, the middle space and the lower space of the trolley are of an open structure, and a modularized structure is adopted, so that when a problem occurs in a single-side frame or a polishing unit, a specific module can be detached and maintained in a targeted manner, the disassembly, the installation and the maintenance can be more convenient, the maintenance cost is obviously reduced, and great convenience is provided for the maintenance of the subsequent polishing trolley and the polishing unit;
(8) The traction device and the steel rail polishing trolley comprising the traction device can accurately position the relative position relationship between the grinding wheel and the steel rail by utilizing the rail leaning device, so that the polishing effect and the polishing effect are greatly improved; the polishing machine can polish various areas of railway lines including turnouts, and has wide application range and strong adaptability; the internal space of the polishing trolley can be fully utilized, the operation process is simple, and interference between the rim surface of the rail leaning wheel and the side surface of the steel rail in the rail leaning process can be effectively avoided;
(9) According to the traction device and the steel rail polishing trolley comprising the traction device, the structure of the fireproof and dustproof device of the steel rail polishing trolley is optimized, the side doors are movably connected, so that the large-angle opening and closing of the doors can be realized, and when the internal structure of the polishing trolley is required to be maintained, the rear side surface of the doors is directly opened without other baffles, so that the internal structure of the polishing trolley can be directly operated, the subsequent maintenance work of the polishing trolley is more convenient and quicker, and the maintenance cost is remarkably reduced;
(10) The traction device and the steel rail polishing trolley comprising the traction device disclosed by the embodiment of the invention have the advantages that the polishing units in the steel rail polishing trolley have a transverse movement function, the polishing requirements of various lines such as a positive line and a turnout can be met, the polishing angle can be covered in a large range, and meanwhile, the polishing quality of the steel rail can be effectively improved.
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 invention, and is not intended to limit the present invention in any way. While the invention 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 invention or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention, unless departing from the technical solution of the present invention.
Claims (11)
1. A traction device mounted on a lower portion of a grinding wagon (100) for transmitting traction force of the grinding wagon (100) to a grinding wagon (200), wherein the traction device (800) adopts a vertical traction structure and comprises: the traction device comprises a traction seat (4), a traction guide post (5), a traction guide sleeve (7), a traction connecting plate (22) and a pin shaft (801); the traction seat (4) is arranged at the bottom of the grinding vehicle (100), and the traction guide sleeve (7) is sleeved on the traction guide post (5); the upper end of the traction guide post (5) is mounted on the traction seat (4) through a pin shaft (801), and the traction guide sleeve (7) is connected to the frame (300) of the polishing trolley (200) through a traction connecting plate (22); the traction guide post (5) can transversely swing along the steel rail (30) by taking the pin shaft (801) as a rotating shaft, and when the traction guide post (5) swings, the traction guide sleeve (7) can move up and down along the traction guide post (5); the traction force of the polishing trolley (100) is transmitted to the frame (300) through the traction seat (4), the traction guide post (5), the traction guide sleeve (7) and the traction connecting plate (22), so that the polishing trolley (200) is driven to operate; the traction device (800) further comprises a traction pin shaft (802), one end of the traction pin shaft (802) is movably connected to a traction pin shaft mounting seat (803) of the traction guide sleeve (7), and the other end of the traction pin shaft is connected with the traction connecting plate (22); one end of the traction connecting plate (22) is connected to a center sill (3) of the frame (300), and the traction connecting plate (22) can rotate relative to a traction pin shaft mounting seat (803) by taking a traction pin shaft (802) as a rotating shaft.
2. The traction device of claim 1, wherein: the traction device (800) further comprises a traction pin shaft cover plate (804), a shaft head part at one end of the traction pin shaft (802) is arranged in a clamping groove of the traction pin shaft mounting seat (803) and is fixed through the traction pin shaft cover plate (804), and the traction pin shaft (802) can rotate relative to the traction pin shaft mounting seat (803) along the axial direction.
3. Rail dolly of polishing installs in the lower part of dolly of polishing (100), its characterized in that, dolly of polishing (200) include: -a frame (300), a fireproof and dustproof device (400), a locking device (500), a sanding unit (600), a lifting device (900) and a traction device (800) according to claim 1 or 2; the frame (300) comprises a middle beam (3) and polishing unit installation frames which are arranged on the left side and the right side of the middle beam (3) along the operation direction of the polishing trolley (200) in a symmetrical structure and can be lifted independently; the two traction devices (800) are symmetrically arranged at the front end and the rear end along the operation direction of the polishing trolley (200), and the traction devices (800) are arranged at the bottom of the polishing trolley (100) and are connected with the middle beam (3); the fireproof and dustproof device (400) is mounted on the frame (300), and the polishing unit (600) is mounted on the polishing unit mounting frame and is arranged inside the fireproof and dustproof device (400); one end of the lifting device (900) is connected to the bottom of the polishing trolley (100), the other end of the lifting device is connected with the frame (300), and the polishing trolley (200) can be fixed to the bottom of the polishing trolley (100) through the locking device (500).
4. A rail grinding trolley according to claim 3, wherein: the frame (300) further comprises a running wheel mounting seat (8), a running wheel (9), a wheel tread adjusting guide post (10), a wheel tread adjusting guide sleeve (11) and a wheel tread adjusting mechanism (12); the two wheel track adjusting guide posts (10) are respectively and fixedly connected to the front end and the rear end of the middle beam (3) along the working direction of the polishing trolley (100), and the two ends of the wheel track adjusting guide posts (10) along the length direction are respectively sleeved with a wheel track adjusting guide sleeve (11); one end of the wheel track adjusting mechanism (12) is connected to a connecting seat (20) on the middle beam (3), the other end of the wheel track adjusting mechanism is connected to the wheel track adjusting guide sleeve (11), and the running wheel (9) is arranged below the wheel track adjusting guide sleeve (11) through a running wheel mounting seat (8); the track adjusting guide sleeve (11) is driven to transversely move on the track adjusting guide post (10) through the extension and retraction of the track adjusting mechanism (12), and further the running wheel (9) connected with the track adjusting guide sleeve (11) is driven to transversely move, so that the track adjustment of the running wheel (9) is realized.
5. The rail grinding wagon of claim 4, wherein: the frame (300) further comprises a polishing device lifting guide post (14) and a polishing device lifting guide sleeve (19) sleeved outside the polishing device lifting guide post (14); the upper part of the polishing device lifting guide post (14) is connected to the end part of the polishing unit installation frame along the operation direction of the polishing trolley (200), and the polishing device lifting guide sleeve (19) is fixedly connected with the wheel tread adjusting guide sleeve (11) positioned at the same end; the frame (300) further comprises a polishing device lifting mechanism (15), one ends of the two polishing device lifting mechanisms (15) are respectively connected to the front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley (200), and the other ends of the two polishing device lifting mechanisms are connected to the wheel tread adjusting guide sleeves (11) positioned on the same side; the front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley (200) are provided with a pair of polishing device lifting guide posts (14), and the polishing device lifting mechanism (15) is arranged between the two polishing device lifting guide posts (14); when the lifting mechanism (15) of the polishing device stretches and contracts, the lifting guide post (14) of the polishing device is driven to move up and down relative to the lifting guide sleeve (19) of the polishing device, so that the lifting movement of the mounting frame of the polishing unit relative to the middle beam (3) is realized.
6. A rail grinding trolley according to claim 4 or 5, wherein: the frame (300) further comprises guide sleeve connecting parts (13), wherein the two guide sleeve connecting parts (13) are respectively arranged at the front end and the rear end of the polishing unit installation frame along the operation direction of the polishing trolley (200) and are connected between two polishing device lifting guide sleeves (19) positioned at the same end; the wheel track adjusting guide post (10) is fixedly connected with the middle beam (3) through a connecting seat (20), and the front end and the rear end of the frame (300) along the operation direction of the polishing trolley (200) are provided with paired wheel track adjusting mechanisms (12); one end of the wheel track adjusting mechanism (12) is connected to the connecting seat (20), and the other end of the wheel track adjusting mechanism is connected with the wheel track adjusting guide sleeve (11) positioned on the same side.
7. The rail grinding trolley of claim 6, wherein: the polishing unit mounting frame comprises a first polishing unit mounting frame (1) and a second polishing unit mounting frame (18); the first grinding unit installation frame (1) and the second grinding unit installation frame (18) can be lifted independently, so that when a grinding trolley (200) encounters a single-side obstacle in the operation process, the corresponding grinding unit installation frames can be lifted independently; the polishing unit installation frame comprises a first polishing unit installation frame body (1) and a second polishing unit installation frame body (18), wherein polishing unit installation seats (21) are welded on the first polishing unit installation frame body and the second polishing unit installation frame body, polishing units (600) are fixedly arranged on the polishing unit installation seats (21) through bolt connection, and the installation quantity of the polishing units (600) is changed by adjusting the relative positions of the polishing unit installation seats (21).
8. The rail grinding wagon of claim 7, wherein: the lifting device (900) comprises a polishing trolley lifting mechanism (6), an upper mounting seat (23) and a lower mounting seat (24); one end of the polishing trolley lifting mechanism (6) is fixed at the bottom of the polishing trolley (100) through an upper mounting seat (23), and the other end of the polishing trolley lifting mechanism is fixed at a travelling wheel mounting seat (8) through a lower mounting seat (24); and the whole lifting and lowering of the polishing trolley (200) are controlled by the polishing trolley lifting mechanism (6).
9. The rail grinding wagon of claim 3, 4,5, 7 or 8, wherein: the fireproof and dustproof device (400) comprises a middle baffle plate (402), a cover plate (403), a vehicle door (405), a dust collecting curtain (407), an end baffle plate (410) and a fireproof curtain; the cover plates (403) are arranged at the left side and the right side of the dust collecting curtain (407) along the operation direction of the polishing trolley (200) and are arranged on the frame (300) of the polishing trolley (200); one side of the dust collecting curtain (407) is connected to the bottom of the body of the grinding wagon (100), and the opposite side is connected with the cover plate (403); the vehicle door (405) is arranged at the left side and the right side of the polishing trolley (200) along the operation direction and is connected with the cover plate (403) through a hinge (404); the middle baffle plate (402) is connected to the lower part of the frame (300) in a hanging way, and the end baffle plates (410) are arranged at the front end and the rear end of the polishing trolley (200) along the operation direction and are arranged on the frame (300); the lower parts of the vehicle door (405) and the end baffle (410) are connected with a fireproof curtain.
10. The rail grinding wagon of claim 3,4,5, 7 or 8, wherein: a rail leaning device (700) is also arranged between two adjacent polishing units (600) of the first polishing unit mounting frame (1) and/or the second polishing unit mounting frame (18).
11. The rail grinding trolley of claim 10, wherein: the rail leaning device (700) comprises a mounting plate (701), a transverse moving guide column (702), a transverse moving guide sleeve (703), a transverse moving mechanism II (704), a vertical moving guide sleeve guide column (705), a vertical moving mechanism (706), a rail leaning wheel mounting seat (707), a rail leaning wheel (708), a first elastic component (709) and a second elastic component (710); the two mounting plates (701) are arranged opposite to each other and fixed on the frame (300) of the polishing trolley (200), and the traversing guide column (702) is connected between the two mounting plates (701); a transverse guide sleeve (703) is sleeved on the transverse guide post (702), one end of the second transverse mechanism (704) is connected with the mounting plate (701), and the other end of the second transverse mechanism is connected to the transverse guide sleeve (703); one end of the first elastic component (709) is connected with the mounting plate (701), and the other end of the first elastic component is connected to the transverse moving guide sleeve (703); one end of the vertical moving guide sleeve guide post (705) is connected with the horizontal moving guide sleeve (703), the other end of the vertical moving guide sleeve guide post extends downwards and is connected to a rail leaning wheel mounting seat (707), and the rail leaning wheel (708) is mounted on the rail leaning wheel mounting seat (707); one end of the vertical moving mechanism (706) is connected with the transverse moving guide sleeve (703), and the other end is connected to the rail leaning wheel mounting seat (707); the first elastic component (709) is connected between the mounting plate (701) and the transverse guide sleeve (703), and the second elastic component (710) is connected between the transverse guide sleeve (703) and the rail wheel mounting seat (707); when the acting force of the second traversing mechanism (704) is unloaded, the first elastic component (709) enables the traversing guide sleeve (703) to receive the acting force pointing to the rail leaning direction of the rail leaning wheel (8), so that the rail leaning wheel (8) is pressed against the side surface of the steel rail (30).
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| CN113895891B (en) * | 2021-11-01 | 2023-03-21 | 郑州宝冶钢结构有限公司 | Self-adaptive steel rail transmission device |
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| JPH0813404A (en) * | 1994-06-24 | 1996-01-16 | Norichika Azuma | Rail-straightening machine |
| CN104401349A (en) * | 2014-11-13 | 2015-03-11 | 中国北车集团大连机车车辆有限公司 | Locomotive traction pin of lifting bogie |
| CN105083318B (en) * | 2015-09-28 | 2016-09-14 | 青岛思锐科技有限公司 | Hitch spring vertical supporting device |
| CN111139698B (en) * | 2020-01-20 | 2025-02-25 | 株洲时代电子技术有限公司 | Subway rail grinding vehicle |
| CN111155380A (en) * | 2020-01-20 | 2020-05-15 | 株洲时代电子技术有限公司 | Rail grinding wagon |
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| Title |
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| LRG 型地铁钢轨打磨车设计;朱世昌等;《现代城市轨道交通》;20171031(第第10期期);16-19 * |
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