阅读说明：本技术 一种牵引装置及包括该装置的钢轨打磨小车 (Traction device and steel rail polishing trolley comprising same ) 是由 张向阳 罗旦 郭平 张东方 余高翔 杨全 赵宇晨 王�华 李雪辉 李从祥 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种牵引装置及包括该装置的钢轨打磨小车,牵引装置采用竖直牵引结构,并包括：牵引座、牵引导柱、牵引导套、牵引连接板及销轴。牵引座安装于打磨车的底部,牵引导套套设于牵引导柱上。牵引导柱的上端通过销轴安装于牵引座上,牵引导套通过牵引连接板连接至打磨小车的车架。牵引导柱能以销轴为旋转轴沿钢轨的横向摆动,当牵引导柱摆动时,牵引导套可沿牵引导柱上下运动。打磨车的牵引力通过牵引座、牵引导柱、牵引导套及牵引连接板传递至车架,由此带动打磨小车进行作业。本发明能够解决现有钢轨打磨小车牵引杆为斜拉牵引杆,会对打磨小车起到减载作用,极端情况下可能导致打磨小车落轨的技术问题。(The invention discloses a traction device and a rail grinding trolley comprising the same, wherein the traction device adopts a vertical traction structure and comprises: the traction base, the traction guide pillar, the traction guide sleeve, the traction connecting plate and the pin shaft. The traction seat is arranged at the bottom of the grinding wagon, and the traction guide sleeve is sleeved on the traction guide post. The upper end of the traction guide pillar is arranged on the traction seat through a pin shaft, and the traction guide sleeve is connected to a frame of the polishing trolley through a traction connecting plate. The traction guide post can swing along the transverse direction of 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 grinding wagon is transmitted to the frame through the traction seat, the traction guide pillar, the traction guide sleeve and the traction connecting plate, so that the grinding wagon is driven to operate. The invention can solve the technical problems that the traction rod of the existing steel rail grinding trolley is a stayed traction rod, the grinding trolley can be subjected to load reduction, and the grinding trolley can fall off under extreme conditions.)

1. A traction device mounted at a lower portion of a sanding vehicle (100) for transferring a traction force of the sanding vehicle (100) to a sanding carriage (200), characterized in that the traction device (800) adopts a vertical traction configuration 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 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 a 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 a 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.

2. The towing attachment in accordance with claim 1, wherein: 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 (802) is connected with a traction connecting plate (22); one end of the traction connecting plate (22) is connected to the center sill (3) of the frame (300), and the traction connecting plate (22) can rotate relative to the traction pin shaft mounting seat (803) by taking the traction pin shaft (802) as a rotating shaft.

3. The towing attachment in accordance with claim 2, wherein: the traction device (800) further comprises a traction pin shaft cover plate (804), the shaft head part at one end of the traction pin shaft (802) is installed in a clamping groove of the traction pin shaft installation 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 installation seat (803) along the axial direction.

4. A rail grinding wagon mounted to a lower portion of a grinding wagon (100), the rail grinding wagon (200) comprising: -a vehicle frame (300), -a fire and dust protection device (400), -a locking device (500), -a sanding unit (600), -a lifting device (900) and-a towing device (800) according to any of claims 1 to 3; the frame (300) comprises a center sill (3) and a grinding unit mounting frame which is arranged on the left side and the right side of the center sill (3) along the operation direction of the grinding 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 grinding trolley (200), and the traction devices (800) are arranged at the bottom of the grinding trolley (100) and are connected with the middle beam (3); the fireproof and dustproof device (400) is arranged on the vehicle frame (300), the grinding unit (600) is arranged on the grinding 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 grinding wagon (100), the other end of the lifting device is connected with the frame (300), and the grinding wagon (200) can be fixed to the bottom of the grinding wagon (100) through the locking device (500).

5. The rail grinding wagon of claim 4, wherein: the frame (300) further comprises a walking wheel mounting seat (8), walking wheels (9), a wheel track adjusting guide pillar (10), a wheel track adjusting guide sleeve (11) and a wheel track adjusting mechanism (12); the two wheel track adjusting guide columns (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 wheel track adjusting guide sleeves (11) are sleeved at the two ends of the wheel track adjusting guide columns (10) along the length direction; 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 walking wheel (9) is installed below the wheel track adjusting guide sleeve (11) through a walking wheel installing 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 the walking wheel (9) connected with the track adjusting guide sleeve (11) is further driven to transversely move, so that the track adjustment of the walking wheel (9) is realized.

6. The rail grinding wagon of claim 5, 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 lifting guide post (14) of the polishing device is connected to the end part of the mounting frame of the polishing unit along the operation direction of the polishing trolley (200), and the lifting guide sleeve (19) of the polishing device is fixedly connected with the wheel track adjusting guide sleeve (11) at the same end; the frame (300) further comprises grinding device lifting mechanisms (15), one ends of the two grinding device lifting mechanisms (15) are respectively connected to the front end and the rear end of the grinding unit mounting frame along the working direction of the grinding trolley (200), and the other ends of the two grinding device lifting mechanisms are connected to the wheel distance adjusting guide sleeves (11) located on the same side; the front end and the rear end of the polishing unit mounting frame along the operation direction of the polishing trolley (200) are respectively provided with a pair of polishing device lifting guide columns (14), and the polishing device lifting mechanism (15) is arranged between the two polishing device lifting guide columns (14); when the grinding device lifting mechanism (15) moves in a telescopic mode, the grinding device lifting guide column (14) is driven to move up and down relative to the grinding device lifting guide sleeve (19), and therefore the grinding unit mounting frame can move up and down relative to the middle beam (3).

7. A rail grinding wagon as defined in claim 5 or 6, wherein: the frame (300) further comprises guide sleeve connecting parts (13), and the two guide sleeve connecting parts (13) are respectively arranged at the front end and the rear end of the polishing unit mounting frame along the operation direction of the polishing trolley (200) and connected between two polishing device lifting guide sleeves (19) at the same end; the track adjusting guide post (10) is fixedly connected with the middle beam (3) through a connecting seat (20), and paired track adjusting mechanisms (12) are arranged at the front end and the rear end of the frame (300) along the operation direction of the polishing trolley (200); 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) located on the same side.

8. The rail grinding wagon of claim 7, wherein: the sanding unit mounting frame comprises a first sanding unit mounting frame (1) and a second sanding unit mounting frame (18); the first and second sanding unit mounting frames (1, 18) being liftable 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 polishing machine is characterized in that a polishing unit mounting seat (21) is welded on the first polishing unit mounting frame (1) and the second polishing unit mounting frame (4), a polishing unit (600) is fixed on the polishing unit mounting seat (21) through bolt connection, and the mounting number of the polishing unit (600) is changed by adjusting the relative position of the polishing unit mounting seat (21).

9. The rail grinding wagon of claim 8, 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 walking wheel mounting seat (8) through a lower mounting seat (24); the polishing trolley lifting mechanism (6) is used for controlling the whole polishing trolley (200) to be lifted and lowered.

10. A rail grinding wagon as defined in claim 4, 5, 6, 8 or 9, wherein: the fireproof and dustproof device (400) comprises a middle baffle (402), a cover plate (403), a vehicle door (405), a dust collecting curtain (407), an end baffle (410) and a fireproof curtain; the cover plates (403) are arranged on 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 collection curtain (407) is connected to the bottom of the grinding wagon (100), and the other opposite side of the dust collection curtain is connected with the cover plate (403); the vehicle doors (405) are arranged on the left side and the right side of the grinding trolley (200) along the operation direction and are connected with the cover plate (403) through hinges (404); the middle baffle (402) is connected below the frame (300) in a hanging manner, and the end baffles (410) are arranged at the front end and the rear end of the grinding 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 both connected with fireproof curtains.

11. A rail grinding wagon as defined in claim 4, 5, 6, 8 or 9, wherein: a rail device (700) is further arranged between two adjacent grinding units (600) of the first grinding unit mounting frame (1) and/or the second grinding unit mounting frame (18); and the transverse movement amount of the transverse movement mechanism I (27) is obtained by calculating the relative variation of the initial position of the rail leaning device (700) and the rear movement position of the rail leaning device and combining the initial position of the transverse movement mechanism I (27) of the grinding unit (600).

12. The rail grinding wagon of claim 11, wherein: the rail device (700) comprises a mounting plate (701), a transverse moving guide post (702), a transverse moving guide sleeve (703), a transverse moving mechanism II (704), a vertical moving guide sleeve guide post (705), a vertical moving mechanism (706), a rail wheel mounting seat (707), a rail 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 a frame (300) of the polishing trolley (200), and the transverse moving guide column (702) is connected between the two mounting plates (701); a transverse guide sleeve (703) is sleeved on the transverse guide pillar (702), one end of the transverse mechanism II (704) is connected with the mounting plate (701), and the other end of the transverse mechanism II 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 traverse guide sleeve (703); one end of the vertical movement guide sleeve guide column (705) is connected with the transverse movement guide sleeve (703), the other end of the vertical movement guide sleeve guide column 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 of the vertical moving mechanism is connected to the rail 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 transverse moving mechanism (704) is unloaded, the first elastic component (709) enables the transverse moving guide sleeve (703) to be subjected to the acting force pointing to the rail leaning direction of the rail leaning wheel (8), and the rail leaning wheel (8) presses the side face of the steel rail (30).

Technical Field

The invention relates to the technical field of rail engineering machinery, in particular to a traction device of a polishing trolley, which is an operation execution mechanism of a rail polishing vehicle, and the rail polishing trolley comprising the traction device.

Background

In the running process of a train, the rail surface condition is continuously deteriorated and the rail head is deformed due to multiple reasons of long-term severe working environment of the steel rail, dynamic action, natural environment, quality of the steel rail and the like, so that the defects of wave abrasion, fat edge, peeling, rail surface scale and the like are generated, and the driving safety is influenced. The rail is polished to remove the unevenness on the surface of the rail and restore the rail head to the original design requirement, so that the wheel-rail relation is effectively improved, the development of the surface defects of the rail is slowed down, the surface smoothness of the rail is improved, and the service life of the rail is prolonged. The grinding trolley is a core operation mechanism of the steel rail grinding wagon, is arranged at the bottom of the steel rail grinding wagon through a traction rod, a lifting oil cylinder and other components, and mainly comprises a traction device, a walking device, a grinding unit, a lifting device and the like. When the grinding machine does not work, the grinding device is suspended and locked at the bottom of the grinding vehicle through the locking device. During operation, the grinding device is lowered to the steel rail through the lifting device and moves along the rail along with the grinding vehicle. The traction device is a main component for connecting the grinding wagon and the grinding device and transmits the traction force of the grinding wagon to the grinding device.

In the prior art, the following technical solutions are mainly related to the present invention:

Disclosure of Invention

In view of the above, the invention aims to provide a traction device and a steel rail grinding trolley comprising the same, so as to solve the technical problems that the traction rod of the conventional steel rail grinding trolley is a diagonal traction rod, the load reduction effect on the grinding trolley is realized, and the grinding trolley can fall off the rail under extreme conditions.

In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a traction device, wherein the traction device is installed at the lower part of a grinding wagon and is used for transmitting the traction force of the grinding wagon to a grinding trolley. The traction device adopts a vertical traction structure and comprises: the traction base, the traction guide pillar, the traction guide sleeve, the traction connecting plate and the pin shaft. The traction seat is arranged at the bottom of the grinding wagon, and the traction guide sleeve is sleeved on the traction guide post. The upper end of the traction guide pillar is mounted 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 along the transverse direction of the steel rail by taking a 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 grinding wagon is transmitted to the frame through the traction seat, the traction guide pillar, the traction guide sleeve and the traction connecting plate, so that the grinding wagon is driven to operate.

Furthermore, 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 a center sill 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.

Furthermore, the traction device further comprises a traction pin shaft cover plate, the shaft head part at one end of the traction pin shaft is arranged in the 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 provides another technical implementation scheme of the rail grinding trolley comprising the traction device, wherein the rail grinding trolley is arranged at the lower part of the grinding trolley and comprises: frame, fire prevention dust keeper, locking device, the unit of polishing, hoisting device and as above draw gear. The frame includes the centre sill to and adopt symmetrical structure to arrange in the centre sill is along the left and right sides of dolly operation direction of polishing, polishing unit installation frame that can independently go up and down. The two traction devices are symmetrically arranged at the front end and the rear end along the operation direction of the polishing trolley, and the traction devices are arranged at the bottom of the polishing trolley and are connected with the middle beam. The fireproof and dustproof device is installed on the frame, the polishing unit is installed on the polishing unit installation frame and arranged inside the fireproof and dustproof device. One end of the lifting device is connected to the bottom of the grinding wagon, the other end of the lifting device is connected with the frame, and the grinding trolley can be fixed to the bottom of the grinding wagon through the locking device.

Furthermore, the frame also comprises a walking wheel mounting seat, walking wheels, a wheel track adjusting guide pillar, a wheel track adjusting guide sleeve and a wheel track adjusting mechanism. The two wheel track adjusting guide columns 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 wheel track adjusting guide sleeves are sleeved at the two ends of the wheel track adjusting guide columns along the length direction. 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 walking wheels are installed below the wheel track adjusting guide sleeve through the walking wheel installation seat. The track adjusting guide sleeve is driven to transversely move on the track adjusting guide column through the extension and retraction of the track adjusting mechanism, and the walking wheel connected with the track adjusting guide sleeve is further driven to transversely move, so that the track adjustment of the walking wheel is realized.

Furthermore, the frame further comprises a polishing device lifting guide pillar and a polishing device lifting guide sleeve sleeved outside the polishing device lifting guide pillar. The upper portion of the polishing device lifting guide pillar 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 track adjusting guide sleeve located at the same end. The frame still includes grinding device elevating system, and two grinding device elevating system's one end is connected to the unit installation frame of polishing respectively along both ends around the dolly operation direction of polishing, and the other end is connected to and lies in the wheel track regulation guide pin bushing with one side. The polishing trolley is characterized in that paired polishing device lifting guide columns are arranged at the front end and the rear end of the polishing unit installation frame in the operation direction of the polishing trolley, and the polishing device lifting mechanisms are arranged between the two polishing device lifting guide columns. When the grinding device lifting mechanism moves in a telescopic mode, the grinding device lifting guide column is driven to move up and down relative to the grinding device lifting guide sleeve, and therefore the grinding unit mounting frame can move up and down relative to the middle beam.

Further, the frame still includes guide pin bushing connecting portion, and two guide pin bushing connecting portions set up respectively in polishing unit installation frame along polishing dolly operation direction both ends around to be connected in between two grinding device lift guide pin bushings that are located same end. The wheel track adjusting guide pillar 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 in 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 sharpening unit mounting frame includes a first sharpening unit mounting frame and a second sharpening unit mounting frame. The first and second sanding unit mounting frames are independently liftable to enable the respective sanding unit mounting frames to be lifted independently when the sanding trolley encounters a unilateral obstacle during operation. The polishing device comprises a first polishing unit installation frame, a second polishing unit installation frame, a polishing unit installation seat, a polishing unit, a bolt, a polishing unit installation seat and a polishing unit, wherein the first polishing unit installation frame and the second polishing unit installation frame are welded with the polishing unit installation seats, the polishing unit is fixedly connected with the polishing unit installation seats through the bolt, and the installation quantity of the polishing unit is changed by adjusting the relative position of the polishing unit installation.

Furthermore, the lifting device comprises a polishing trolley lifting mechanism, an upper mounting seat and a lower mounting seat. One end of the lifting mechanism of the polishing trolley is fixed at the bottom of the polishing trolley through an upper mounting seat, and the other end of the lifting mechanism of the polishing trolley is fixed at a walking wheel mounting seat through a lower mounting seat. The polishing trolley lifting mechanism controls the whole polishing trolley to be lifted and lowered.

Furthermore, 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 plates are arranged on the left side and the right side of the dust collecting curtain along the operation direction of the polishing trolley and are arranged on a frame of the polishing trolley. One side of the dust collecting curtain is connected to the bottom of the body of the grinding wagon, and the other opposite side of the dust collecting curtain is connected with the cover plate. The car door set up in the left and right sides of dolly along the operation direction of polishing to through the hinge with the apron is connected. The middle baffle is connected below the frame in a hanging mode, and the end baffles are arranged at the front end and the rear end of the polishing trolley in the operation direction and are arranged on the frame. The lower parts of the vehicle door and the end baffle are both connected with fireproof curtains.

Further, a rail device is arranged between two adjacent grinding units of the first grinding unit mounting frame and/or the second grinding unit mounting frame. And calculating the initial position of the rail leaning device and the relative variation of the rear moving position of the rail leaning device, and combining the initial position of a first transverse moving mechanism of the polishing unit to obtain the transverse moving amount of the first transverse moving mechanism.

Furthermore, the rail device comprises a mounting plate, a transverse moving guide pillar, a transverse moving guide sleeve, a transverse moving mechanism II, a vertical moving guide sleeve guide pillar, a vertical moving mechanism, a rail wheel mounting seat, a rail wheel, a first elastic component and a second elastic component. The two mounting plates are arranged opposite to each other and fixed on a frame of the polishing trolley, and the transverse moving guide pillar is connected between the two mounting plates. The transverse guide pillar is sleeved with a transverse guide sleeve, one end of the transverse mechanism II is connected with the mounting plate, and the other end of the transverse mechanism II 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 movement guide sleeve guide column is connected with the transverse movement guide sleeve, the other end of the vertical movement guide sleeve guide column extends downwards and is connected to the 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 wheel mounting seat. The first elastic component is connected between the mounting plate and the transverse moving guide sleeve, and the second elastic component is connected between the transverse moving guide sleeve and the guide rail wheel mounting seat. When the acting force of the transverse moving mechanism II is unloaded, the first elastic component enables the transverse moving guide sleeve to be subjected to the acting force pointing to the direction of the rail leaning wheel, and the rail leaning wheel is pressed against the side face of the steel rail.

Through the implementation of the technical scheme of the traction device and the steel rail grinding trolley comprising the traction device, the steel rail grinding trolley has the following beneficial effects that:

(1) the traction device and the steel rail polishing trolley comprising the traction device are of a vertically-mounted 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 pillar are connected with the spherical hinge structure of the traction connecting plate through the pin shaft, the rotational freedom degree of the traction device can be effectively released, the load reduction effect of a traditional inclined-pulling traction rod on the polishing trolley is avoided, and the condition that the polishing trolley falls off the rail under the extreme condition is effectively avoided;

(2) according to the traction device and the steel rail grinding trolley comprising the same, the traction device adopts a vertical type 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 grinding trolley and the whole design layout difficulty of the grinding trolley are reduced, and the compact design of the whole structure size of the grinding trolley can be better realized;

(3) according to the traction device and the steel rail polishing trolley comprising the same, the traction device adopts a vertical type traction rod structure, and a vertical upward component force cannot be formed on the polishing device during traction movement, so that the grinding device has better dynamic characteristics during walking and polishing;

(4) the traction device and the steel rail grinding trolley comprising the same are characterized in that the traction device adopts a vertical type traction rod structure and is symmetrically arranged and installed at the front end and the rear end of the grinding trolley, and when the advancing directions of the steel rail grinding trolley are different, the traction force forms of the traction device to the grinding device are completely the same, so that when the grinding trolley advances in the positive and negative directions for grinding, the grinding operation effect cannot be obviously different;

(5) the rail grinding trolley adopts an installation frame structure with independent and symmetrical left and right sides and is provided with a grinding device lifting mechanism, so that the left and right frames can be independently lifted relative to the grinding trolley, the grinding states of the frames on the two sides are not influenced mutually, and when a single-side rail grinding head needs to avoid obstacle lifting in the operation process, only the frame on the corresponding side needs to be lifted, so that the influence on the grinding efficiency caused by the frequent lifting and falling of the whole grinding trolley in the operation process is avoided;

(6) according to the traction device and the steel rail grinding trolley comprising the same, the distance between the mounting seats of the left and right side frame grinding units of the steel rail grinding trolley is adjustable, and steel rail grinding trolleys with different grinding head numbers can be obtained by adjusting the mounting distance between the grinding units so as to meet the diversified requirements of customers;

(7) according to the traction device and the steel rail polishing trolley comprising the same, 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 and lower spaces of the trolley are both of an open structure and adopt a modular structure, when a problem occurs in a unilateral frame or a polishing unit, a specific module can be detached and maintained in a targeted manner, the detachment, the installation and the maintenance can be more convenient and faster, 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 same, 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 grinding machine can be used for grinding various areas of railway lines including turnouts, and is wide in application range and high in adaptability; the internal space of the polishing trolley can be fully utilized, the operation process is simple, and the interference between the edge surface of the rail wheel and the side surface of the steel rail in the rail leaning process can be effectively avoided;

(9) the rail grinding trolley comprises a traction device and a rail grinding trolley body, the rail grinding trolley body is provided with a fireproof and dustproof device, the structure of the rail grinding trolley body is optimized, the side vehicle doors are movably connected, the wide-angle opening and closing of the vehicle doors can be realized, when the internal structure of the grinding trolley body needs to be maintained, the vehicle doors are directly opened, and no other baffle is arranged on the rear side surface, so that the internal structure of the grinding trolley body can be directly operated, the subsequent maintenance work of the grinding trolley body is more convenient and faster, and the maintenance cost is obviously reduced;

(10) according to the traction device and the steel rail polishing trolley comprising the same, the polishing units in the steel rail polishing trolley have a transverse moving function, so that the polishing requirements of various lines such as a main line, a turnout and the like can be met, the large-range coverage of polishing angles can be realized, and the steel rail polishing quality 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 obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.

FIG. 1 is a schematic structural view of a rail grinding wagon embodying the present invention;

FIG. 2 is a schematic view of the enlarged partial structure of FIG. 1;

FIG. 3 is a schematic perspective view of one embodiment of a rail grinding wagon draft gear of the present invention;

FIG. 4 is a schematic perspective view of a rail grinding wagon according to an embodiment of the present invention at another viewing angle;

FIG. 5 is a schematic side view of the structure of one embodiment of the rail grinding wagon draft gear of this invention;

FIG. 6 is a schematic front view of the configuration of one embodiment of the rail grinding wagon draft gear of this invention;

FIG. 7 is a schematic side view of the structure of one embodiment of the rail grinding cart of the present invention;

FIG. 8 is a top plan view of a schematic of the structure of one embodiment of the rail grinding cart of the present invention;

FIG. 9 is a schematic elevational view of the configuration of one embodiment of the rail grinding cart of the present invention;

FIG. 10 is a schematic perspective view of one embodiment of the rail grinding cart of the present invention;

FIG. 11 is a schematic perspective view of a rail grinding wagon according to an embodiment of the invention from another perspective;

FIG. 12 is a schematic perspective view of a carriage in one embodiment of the rail grinding wagon of the present invention;

FIG. 13 is a schematic drawing showing a partial configuration of one embodiment of the rail grinding wagon of the present invention with a portion of the top cover removed;

FIG. 14 is an enlarged schematic view of a portion of the interior of one embodiment of the rail grinding wagon of the present invention;

FIG. 15 is a schematic perspective view of a fire and dust protection system for a rail grinding wagon according to an embodiment of the present invention;

FIG. 16 is a schematic perspective view of the fire and dust protection apparatus of the rail grinding wagon of the present invention from another perspective view;

FIG. 17 is a schematic side view of the fire and dust protected apparatus of one embodiment of the rail grinding wagon of the present invention;

FIG. 18 is a front elevational view of a fire and dust suppression feature in an exemplary embodiment of the rail grinding cart of the present invention;

FIG. 19 is a front elevational view of a rail engaging apparatus in one embodiment of the rail grinding cart of the present invention;

FIG. 20 is a schematic perspective view of a rail engaging device in an embodiment of the rail grinding wagon of the present invention;

FIG. 21 is a schematic perspective view of a rail backup device from another perspective in one embodiment of the rail grinding cart of the present invention;

FIG. 22 is a side elevational view of a rail engaging apparatus in an exemplary embodiment of the rail grinding cart of the present invention;

in the figure: 1-a first grinding unit mounting frame, 2-a left side grinding unit, 3-a center sill, 4-a traction base, 5-a traction guide post, 6-a grinding carriage lifting mechanism, 7-a traction guide sleeve, 8-a running wheel mounting base, 9-a running wheel, 10-a track adjusting guide post, 11-a track adjusting guide sleeve, 12-a track adjusting mechanism, 13-a guide sleeve connection, 14-a grinding device lifting guide post, 15-a grinding device lifting mechanism, 16-a fire and dust prevention device, 17-a right side grinding unit, 18-a second grinding unit mounting frame, 19-a grinding device lifting guide sleeve, 20-a connection base, 21-a grinding unit mounting base, 22-a traction connection plate, 23-an upper mounting base, 24-a lower mounting base, 25-rail wheel, 26-stop collar, 27-transverse mechanism I, 30-rail, 100-grinding vehicle, 200-grinding vehicle, 300-vehicle frame, 400-fireproof and dustproof device, 401-longitudinal beam, 402-middle baffle, 403-cover plate, 404-hinge, 405-vehicle door, 406-side fireproof curtain, 407-dust-collecting curtain, 408-vehicle door buffer mechanism, 409-installation seat, 410-end baffle, 411-end fireproof curtain, 412-handle, 500-locking device, 600-grinding unit, 700-rail device, 701-installation plate, 702-guide post transverse movement, 703-transverse guide sleeve, 704-transverse mechanism II, 705-vertical guide sleeve guide post, 706-vertical movement mechanism, 707-rail wheel installation seat, 708-rail wheel, 709-first elastic component, 710-second elastic component, 711-dustproof baffle, 712-clapboard, 713-first connecting plate, 714-second connecting plate, 715-vertical moving guide column, 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 clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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 disposed 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 will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

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

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

Referring now to figures 1 to 22 of the drawings, there is shown an embodiment of a traction apparatus and rail grinding wagon incorporating the same in accordance with the present invention, the invention being further described with reference to the drawings and the embodiment.