阅读说明：本技术 一种钢轨打磨小车车架 (Rail dolly frame of polishing ) 是由 罗旦 郭平 赵宇晨 王�华 余高翔 张东方 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种钢轨打磨小车车架,两个打磨单元安装框架分别布置于中梁沿打磨小车作业方向的左右两侧,打磨单元安装框架上设置有打磨单元安装座。两个轮距调节导柱固定连接至中梁沿打磨小车作业方向的前后两端,轮距调节导柱沿长度方向的两端均套设有轮距调节导套。轮距调节机构一端连接至中梁上的安装座,另一端连接至轮距调节导套。走行轮安装于走行轮安装座上,走行轮安装座固定于轮距调节导套上。通过轮距调节机构的伸缩带动轮距调节导套在轮距调节导柱上移动,并进一步带动走行轮移动,从而实现走行轮的轮距调节。本发明能解决现有钢轨打磨小车车架走行轮采用相对固定结构,轮距基本固定,无法适应不同线路轨距打磨需求的技术问题。(The invention discloses a rail grinding trolley frame, wherein two grinding unit installation frames are respectively arranged on the left side and the right side of a middle beam along the working direction of a grinding trolley, and grinding unit installation seats are arranged on the grinding unit installation frames. Two wheel track adjusting guide pillars are 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 pillars along the length direction. One end of the wheel track adjusting mechanism is connected to the mounting seat on the middle beam, and the other end of the wheel track adjusting mechanism is connected to the wheel track adjusting guide sleeve. The walking wheels are arranged on the walking wheel mounting seat, and the walking wheel mounting seat is fixed on the wheel track adjusting guide sleeve. The track adjusting guide sleeve is driven by the extension and retraction of the track adjusting mechanism to move on the track adjusting guide post, and further drives the walking wheels to move, so that the track adjustment of the walking wheels is realized. The invention can solve the technical problems that the traveling wheels of the frame of the existing steel rail grinding trolley adopt a relatively fixed structure, the wheel track is basically fixed, and the requirements of grinding different line track tracks cannot be met.)

1. A rail grinding wagon frame, comprising: the device comprises a middle beam (3), a polishing unit mounting frame, a wheel track adjusting guide pillar (7), a wheel track adjusting guide sleeve (8), a traveling wheel (9), a wheel track adjusting mechanism (10) and a traveling wheel mounting seat (17); the two polishing unit mounting frames are respectively arranged at the left side and the right side of the center sill (3) along the operation direction of the polishing trolley (200), and polishing unit mounting seats (2) are arranged on the polishing unit mounting frames; the two wheel track adjusting guide columns (7) 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 (200), and wheel track adjusting guide sleeves (8) are respectively sleeved at the two ends of the wheel track adjusting guide columns (7) along the length direction; one end of the wheel track adjusting mechanism (10) is connected to an installation seat (13) on the middle beam (3), and the other end of the wheel track adjusting mechanism is connected to the wheel track adjusting guide sleeve (8); the walking wheels (9) are arranged on a walking wheel mounting seat (17), and the walking wheel mounting seat (17) is fixed on the wheel track adjusting guide sleeve (8); the track adjusting guide sleeve (8) is driven to move on the track adjusting guide post (7) through the extension and retraction of the track adjusting mechanism (10), and a walking wheel (9) connected with the track adjusting guide sleeve (8) is further driven to move, so that the track adjustment of the walking wheel (9) is realized.

2. The rail grinding cart frame of claim 1, wherein: the frame (200) further comprises a polishing device lifting guide post (5) and a polishing device lifting guide sleeve (6) sleeved outside the polishing device lifting guide post (5); the upper part of the polishing device lifting guide post (5) is connected to the end part of the polishing unit mounting frame along the operation direction of the polishing trolley (200), and the polishing device lifting guide sleeve (6) is fixedly connected with the wheel track adjusting guide sleeve (8) positioned at the same end.

3. A rail grinding wagon frame as defined in claim 2 or 3, wherein: the frame (200) further comprises grinding device lifting mechanisms (11), one ends of the two grinding device lifting mechanisms (11) are respectively connected to the front end and the rear end of the grinding unit installation frame along the operation direction of the grinding trolley (200), and the other ends of the two grinding device lifting mechanisms are connected to the wheel track adjusting guide sleeves (8) located at the same end.

4. A rail grinding wagon frame as defined in claim 2, wherein: the polishing unit installation frame is provided with paired polishing device lifting guide columns (5) at the front end and the rear end along the operation direction of the polishing trolley (200), and the polishing device lifting mechanism (11) is arranged between the two polishing device lifting guide columns (5).

5. A rail grinding wagon frame as defined in claim 4, wherein: the frame (200) further comprises guide sleeve connecting parts (12), and the two guide sleeve connecting parts (12) 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 the two polishing device lifting guide sleeves (6) at the same end.

6. A rail grinding wagon frame as claimed in claim 2, 3 or 5, wherein: the wheel track adjusting guide post (7) is fixedly connected with the middle beam (3) through a mounting seat (13), and paired wheel track adjusting mechanisms (10) 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 (10) is connected to the mounting seat (13), and the other end of the wheel track adjusting mechanism is connected with the wheel track adjusting guide sleeve (8) located on the same side.

7. The rail grinding cart frame of claim 6, wherein: when the grinding device lifting mechanism (11) moves in a telescopic mode, the grinding device lifting guide column (5) is driven to move up and down relative to the grinding device lifting guide sleeve (6), and therefore the grinding unit mounting frame can move up and down relative to the middle beam (3).

8. The rail grinding cart frame of claim 7, wherein: and after the wheel track of the walking wheels (9) is adjusted, locking the position of the wheel track adjusting guide sleeve (8) on the wheel track adjusting guide post (7).

9. A rail grinding wagon frame as defined in claim 1, 2, 3, 5, 7 or 8, wherein: the sanding unit mounting frame comprises a first sanding unit mounting frame (1) and a second sanding unit mounting frame (4); the first and second sanding unit mounting frames (1, 4) can be lifted 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.

10. The rail grinding cart frame of claim 9, wherein: the polishing unit mounting seat (2) is welded on the first polishing unit mounting frame (1) and the second polishing unit mounting frame (4), the polishing unit (300) is fixed on the polishing unit mounting seat (2) through bolt connection, and the mounting number of the polishing unit (300) is changed by adjusting the relative position of the polishing unit mounting seat (2).

Technical Field

The invention relates to the technical field of rail engineering machinery, in particular to a grinding trolley frame applied to a steel rail grinding wagon.

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 an actuating mechanism for grinding operation and is a key composition structure of the steel rail grinding wagon. The grinding trolley frame is used as a key structure for installing the grinding unit, and has important influence on the accuracy, reliability and safety of the grinding trolley operation.

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 rail grinding trolley frame to solve the technical problems that the traveling wheels of the conventional rail grinding trolley frame are of a relatively fixed structure, the wheel track is basically fixed, and the rail grinding trolley frame cannot meet the grinding requirements of different line track gauges.

In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a rail grinding wagon frame, which comprises: the grinding device comprises a middle beam, a grinding unit mounting frame, a wheel track adjusting guide pillar, a wheel track adjusting guide sleeve, a traveling wheel, a wheel track adjusting mechanism and a traveling wheel mounting seat. Two unit installation framves of polishing arrange respectively in the centre sill is along the left and right sides of dolly operation direction of polishing, be provided with the unit mount pad of polishing on the unit installation frame of polishing. 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 mounting seat on the middle beam, and the other end of the wheel track adjusting mechanism is connected to the wheel track adjusting guide sleeve. The walking wheels are arranged on the walking wheel mounting seat, and the walking wheel mounting seat is fixed on the wheel track adjusting guide sleeve. The track adjusting guide sleeve is driven to move on the track adjusting guide column through the extension and retraction of the track adjusting mechanism, and the walking wheels connected with the track adjusting guide sleeve are further driven to move, so that the track adjustment of the walking wheels 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.

Furthermore, 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 the front and back both ends of dolly operation direction of polishing, and the other end is connected to the wheel track that is located same end and adjusts the guide pin bushing.

Furthermore, polishing unit installation frame all is provided with mated grinding device lift guide pillar along both ends around the dolly operation direction of polishing, grinding device elevating system arranges between two grinding device lift guide pillars.

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.

Furthermore, the wheel track adjusting guide pillar is fixedly connected with the middle beam through a mounting 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 mounting 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, when the polishing device lifting mechanism moves telescopically, the polishing device lifting guide column is driven to move up and down relative to the polishing device lifting guide sleeve, so that the polishing unit mounting frame can move up and down relative to the middle beam.

Further, after the wheel track of the walking wheels is adjusted, the wheel track adjusting guide sleeve is locked at the position of the wheel track adjusting guide post.

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.

Furthermore, the polishing unit mounting seats are welded on the first polishing unit mounting frame and the second polishing unit mounting frame, the polishing units are fixed on the polishing unit mounting seats through bolts, and the mounting number of the polishing units is changed by adjusting the relative positions of the polishing unit mounting seats.

Through the implementation of the technical scheme of the steel rail grinding trolley frame provided by the invention, the steel rail grinding trolley frame has the following beneficial effects:

(1) according to the steel rail grinding trolley frame, the wheel track of the walking wheels is designed in an adjustable mode, and compared with a structure that the walking wheels of a traditional steel rail grinding trolley are relatively fixed, the wheel track of the walking wheels can be adjusted to meet the grinding requirements of different line track gauges (a standard gauge, a wide rail and a narrow rail);

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

(3) according to the rail grinding trolley frame, the distance between the mounting seats of the grinding units of the left and right side frames is adjustable, and rail grinding trolleys with different grinding head numbers can be obtained by adjusting the mounting distance between the grinding units, so that the diversified requirements of customers can be met;

(4) according to the rail grinding trolley frame, an independent symmetrical frame structure is adopted, the grinding unit mounting frame is positioned at the top of the trolley, the middle and lower spaces of the trolley are both in an open structure, and a modular structure is adopted, so that when a problem occurs in a single-side frame or a grinding unit, a specific module can be detached and maintained in a targeted manner, the detachment, installation and maintenance can be more convenient, the maintenance cost is obviously reduced, and great convenience is provided for the subsequent maintenance of the grinding trolley and the grinding unit.

Drawings

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

FIG. 1 is a schematic perspective view of one embodiment of a rail grinding wagon frame of the present invention;

FIG. 2 is a schematic top view of the structure of one embodiment of the rail grinding wagon frame of the present invention;

FIG. 3 is a schematic side view of the structure of one embodiment of the rail grinding wagon frame of the present invention;

FIG. 4 is a front elevational view of a structural schematic of one embodiment of the rail grinding cart frame of the present invention;

FIG. 5 is a schematic perspective view of a rail grinding wagon for use with the rail grinding wagon frame of the present invention;

FIG. 6 is a schematic perspective view of a rail grinding wagon for use with the rail grinding wagon frame of the present invention from another perspective;

FIG. 7 is a schematic elevational view of the structure of a rail grinding wagon utilized in the rail grinding wagon frame of the present invention;

FIG. 8 is a schematic view of a partial configuration of a rail grinding wagon of the present invention with a portion of the top cover removed;

FIG. 9 is a schematic view of a partially enlarged structure of the interior of a rail grinding wagon employed in the rail grinding wagon frame of the present invention;

in the figure: 1-a first grinding unit mounting frame, 2-a grinding unit mounting seat, 3-a centre sill, 4-a second grinding unit mounting frame, 5-a grinding means lifting guide post, 6-a grinding means lifting guide sleeve, 7-a track adjusting guide post, 8-a track adjusting guide sleeve, 9-a running wheel, 10-a track adjusting mechanism, 11-a grinding means lifting mechanism, 12-a guide sleeve connecting part, 13-a mounting seat, 14-a traction rod mounting seat, 15-a traction rod, 16-a traction rod guide sleeve, 17-a running wheel mounting seat, 18-a limit sleeve, 19-a grinding carriage lifting mechanism, 20-a grinding unit, 21-a rail device, 22-a left side grinding unit, 23-a right side grinding unit, 24-a locking device, 25-upper mounting base, 26-lower mounting base, 27-traction connecting plate, 28-traversing mechanism, 30-steel rail, 100-grinding vehicle, 200-grinding trolley, 300-vehicle frame, 400-fireproof dustproof device, 500-traction device and 600-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 to fig. 1 to 9, a specific embodiment of the rail grinding wagon frame of the present invention is shown, and the present invention will be further described with reference to the accompanying drawings and the specific embodiment.

As shown in fig. 1 to 4, an embodiment of a rail grinding wagon frame specifically includes: the grinding device comprises a middle beam 3, a grinding unit mounting frame, a wheel track adjusting guide pillar 7, a wheel track adjusting guide sleeve 8, a traveling wheel 9, a wheel track adjusting mechanism 10 and a traveling wheel mounting seat 17. Two grinding unit mounting frames are respectively arranged at the left side and the right side of the middle beam 3 along the operation direction (the direction is L in the attached drawing 1) of the grinding trolley 200, and a grinding unit mounting seat 2 is arranged on the grinding unit mounting frames. The sharpening unit mounting frame further comprises a first sharpening unit mounting frame 1 and a second sharpening unit mounting frame 4. The two wheel track adjusting guide columns 7 are fixedly connected to the front end and the rear end of the middle beam 3 along the operation direction of the polishing trolley 200 through bolts respectively, and wheel track adjusting guide sleeves 8 are sleeved at the two ends of the wheel track adjusting guide columns 7 along the length direction (the direction is W in the attached drawing 1). One end of the wheel track adjusting mechanism 10 is connected to the mounting seat 13 on the middle beam 3 through a bolt, and the other end is fixed on the wheel track adjusting guide sleeve 8 through a bolt. The walking wheels 9 are arranged on a walking wheel mounting seat 17, and the walking wheel mounting seat 17 is fixed on the wheel track adjusting guide sleeve 8. And limiting sleeves 18 are further mounted at two ends of the wheel track adjusting guide post 7 and used for axially limiting the wheel track adjusting guide sleeve 8.

The frame 300 further includes guide sleeve connecting portions 12, and the two guide sleeve connecting portions 12 are respectively disposed at the front and rear ends of the polishing unit mounting frame along the operation direction of the polishing cart 200 and connected between the two polishing device lifting guide sleeves 6 located at the same end. The wheel track adjusting guide post 7 is fixedly connected with the middle beam 3 through a mounting seat 13, and paired wheel track adjusting mechanisms 10 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 track adjusting mechanism 10 is connected to the mounting base 13, and the other end is connected to the track adjusting guide sleeve 8 located 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 retraction of the track adjusting mechanism 10, and further the walking wheel 9 connected with the track adjusting guide sleeve 8 is driven to move, so that the track adjustment of the walking wheel 9 is realized. After the wheel track of the walking wheels 9 is adjusted, the wheel track adjusting guide sleeve 8 is locked on the wheel track adjusting guide post 7 through bolt fastening. The wheelbase of the rail grinding trolley in the prior art is basically fixed, so that the rail grinding trolley can only run on a rail line with a corresponding wheelbase to work. The rail grinding trolley frame described in the specific embodiment of the invention has multiple functions of adjusting the wheel track of the traveling wheels 9, meeting the requirements of different grinding units 20, avoiding obstacles in time in the grinding process and the like, is suitable for various types of rail grinding trolleys, and the function of changing the wheel track of the traveling wheels can meet the grinding requirements of different line track gauges (standard rails, wide rails and narrow rails).

The frame 300 further comprises a polishing device lifting guide pillar 5 and a polishing device lifting guide sleeve 6 sleeved outside the polishing device lifting guide pillar 5. The upper part of the grinding device lifting guide pillar 5 is connected to the end part of the grinding unit mounting frame along the working direction of the grinding trolley 200, and the grinding device lifting guide sleeve 6 is fixedly connected with the wheel track adjusting guide sleeve 8 positioned at the same end. Grinding device lift guide pin bushing 6 and wheel track regulation guide pin bushing 8 welding together, grinding device lift guide pillar 5 then with first polishing unit installation frame 1, second polishing unit installation frame 4 are connected, first polishing unit installation frame 1 and second polishing unit installation frame 4 all installed two grinding device lift guide pillars 5 around, four grinding device lift guide pillars 5 two double-phase oppositions and parallel arrangement totally. The frame 300 further comprises grinding device lifting mechanisms 11, one ends of the two grinding device lifting mechanisms 11 are respectively connected to the front end and the rear end of the grinding unit mounting frame along the operation direction of the grinding trolley 200, and the other ends of the two grinding device lifting mechanisms 11 are connected to the wheel track adjusting guide sleeves 8 located at the same end. As a preferred embodiment of the present invention, the pair of polishing device lifting guide pillars 5 are provided at both the front and rear ends of the polishing unit mounting frame in the operation direction of the polishing cart 200, and the polishing device lifting mechanism 11 is disposed between the two polishing device lifting guide pillars 5. When the grinding device lifting mechanism 11 moves telescopically, the grinding device lifting guide post 5 is driven to move up and down in a vertical direction (as shown in the direction H in the attached drawings 3 and 4) relative to the grinding device lifting guide sleeve 6, so that the grinding unit mounting frame can move up and down relative to the middle beam 3.

The embodiment of the invention particularly adopts the design of four grinding device lifting guide columns 5 and a double grinding device lifting mechanism 11 to ensure that the first grinding unit mounting frame 1 and the second grinding unit mounting frame 4 can move stably, thereby effectively reducing the vibration of the grinding unit 20 caused by the expansion and contraction of the grinding device lifting mechanism 11. Meanwhile, the frame of the polishing trolley in the prior art adopts an integral frame type structure, so that the whole lifting or falling can be realized, the whole polishing trolley needs to be lifted aiming at the condition that the unilateral rail grinding head needs to avoid the obstacle lifting, and the polishing operation efficiency is greatly influenced. The steel rail grinding trolley frame described in the specific embodiment of the invention is of a left-right side independent symmetric frame structure, the first grinding unit mounting frame 1 and the second grinding unit mounting frame 4 can be lifted independently, so that the corresponding grinding unit mounting frame and grinding unit 20 can be lifted independently when the steel rail grinding trolley encounters a unilateral obstacle in the operation process, the independence of the movement of the left-right side grinding unit mounting frames is realized, the grinding trolley 200 is prevented from being lifted frequently and integrally in the operation process, and the effective obstacle avoidance is realized on the premise of avoiding the lifting of the grinding trolley 200, so that the safety of the grinding operation is improved, and the grinding operation efficiency is improved.

The first sanding unit mounting frame 1 (for mounting the left sanding unit 22) and the second sanding unit mounting frame 4 (for mounting the right sanding unit 23) can be lifted independently of each other so that the respective sanding unit mounting frames can be lifted individually when the sanding trolley 200 encounters a unilateral obstacle during operation. The unit installation frame 2 that polishes welds on first unit installation frame 1 and the second unit installation frame 4 that polishes, and the unit 300 that polishes is fixed on the unit installation frame 2 through bolted connection, and the relative position through the adjustment unit installation frame 2 that polishes changes the installation quantity of the unit 300 that polishes, and 2 ~ 8 and relatively independent unit 300 that polishes are installed to first unit installation frame 1 or the second unit installation frame 4 that polishes. The sharpening unit mounts 2 are opposite to each other two by two and symmetrically welded to the first sharpening unit mounting frame 1 and the second sharpening unit mounting frame 4. The first polishing unit mounting frame 1 and the second polishing unit mounting frame 4 are respectively welded with polishing unit mounting seats 2, the polishing units 200 are fixed on the corresponding polishing unit mounting frames through bolt connection, the number of the polishing units 20 which can be mounted can be changed by adjusting the relative positions of the polishing unit mounting seats 2 during manufacturing, and 2-8 polishing units 20 which are relatively independent can be mounted on each side frame. Therefore, the number of the grinding heads of the steel rail grinding wagon can be flexibly adjusted according to actual engineering requirements, and the diversified requirements of customers can be met compared with the structural design of the grinding heads of the grinding wagon in the prior art, wherein the number of the grinding heads of the grinding wagon is fixed. According to the rail grinding trolley frame described in the specific embodiment of the invention, an independent symmetrical grinding unit mounting frame structure is adopted, when a problem occurs in a single-side mounting frame or grinding unit 20, a specific module can be detached and maintained in a targeted manner, the rail grinding trolley frame can be detached, installed and maintained more conveniently, and the maintenance cost is reduced remarkably. Meanwhile, the polishing trolley frame in the prior art adopts an integral frame closed structure, and the side part and the middle part of the trolley are provided with rectangular cross beams, so that the structure can cause great difficulty in maintenance of the polishing trolley. According to the rail grinding trolley frame described in the specific embodiment of the invention, the grinding unit mounting frame is positioned at the top of the trolley, the middle and lower spaces of the trolley are both in an open structure and adopt a modular structure, when a problem occurs in a single-side frame or a grinding unit, a specific module can be detached and maintained in a targeted manner, the detachment, installation and maintenance can be more convenient, the maintenance cost is obviously reduced, and great convenience is provided for the maintenance of the subsequent grinding trolley and the grinding unit.

As shown in fig. 5 to 8, in an embodiment of a rail grinding wagon according to an embodiment of the present invention, a grinding wagon 200 is installed at a lower portion of a grinding wagon 100, and includes: frame 300, fire and dust prevention device 400, draw gear 500, hoisting device 600, grinding unit 20 and locking device 24. The carriage 300 includes a center sill 3, and a first polishing unit mounting frame 1 and a second polishing unit mounting frame 4 which are arranged at left and right sides of the center sill 3 in a symmetrical structure and can be independently lifted. The traction device 500 is of a vertical traction structure and is arranged at the front end and the rear end of the working direction of the polishing trolley 200, and the traction device 500 is installed at the bottom of the polishing trolley 100 and is connected with the middle beam 3 and used for transmitting the traction force of the polishing trolley 100 to the frame 300. The fireproof and dustproof device 400 is installed on the carriage 300, and the sanding unit 20 is installed on the first and second sanding unit mounting frames 1 and 4 and is disposed inside the fireproof and dustproof device 400. The lifting device 600 has one end connected to the bottom of the sanding vehicle 100 and the other end connected to the frame 300, and the sanding carriage 200 can be fixed to the bottom of the sanding vehicle 100 by the locking device 24.

The towing attachment 500 further includes a tow bar mount 14, a tow bar 15, and a tow bar guide 16. The traction rod mounting seat 14 is fixed at the bottom of the sanding vehicle 100, the top end of the traction rod 15 is connected to the traction rod mounting seat 14, the traction rod guide sleeve 16 is sleeved on the traction rod 15, and the traction rod guide sleeve 16 is connected with the middle beam 3 through a traction connecting plate 27. The traction force of the sanding vehicle 100 is transmitted to the frame 300 through the traction rod mounting seat 14, the traction rod 15, the traction rod guide 16 and the traction connecting plate 27, thereby driving the sanding trolley 200 to work.

The lifting device 600 further comprises a sanding trolley lifting mechanism 19, an upper mounting 25 and a lower mounting 26. One end of the sanding trolley lifting mechanism 19 is secured to the bottom of the sanding vehicle 100 by an upper mounting bracket 25 and the other end is secured to the road wheel mounting bracket 17 by a lower mounting bracket 26. The overall raising and lowering of the sanding trolley 200 is controlled by the sanding trolley lifting mechanism 19.

As shown in fig. 9, a rail device 21 is further provided between two adjacent sanding units 20 of the first and/or second sanding unit mounting frames 1, 4. The relative variation of the initial position of the rail leaning device 21 and the movement position after the rail leaning device is calculated, and the transverse movement amount of the transverse movement mechanism 28 of the grinding unit 20 is combined with the initial position of the transverse movement mechanism 28, so that the side surface of the steel rail 30 is pressed.

In the embodiment of the present invention, the wheel track adjusting mechanism 10, the grinding device lifting mechanism 11 and the grinding trolley lifting mechanism 19 may be in the form of an oil cylinder, an air cylinder, an electric cylinder, etc. The grinding device lifting guide pillar 5 and the grinding device lifting guide sleeve 6, and the wheel track adjusting guide pillar 7 and the wheel track adjusting guide sleeve 8 can be combined by adopting guide rails and sliders, and can realize the function of moving pairs by adopting alternative structures such as gear and rack combination besides the combination of the guide pillars and the guide sleeves.

By implementing the technical scheme of the steel rail grinding trolley frame described in the specific embodiment of the invention, the following technical effects can be achieved:

(1) according to the steel rail grinding trolley frame described in the specific embodiment of the invention, the wheel track of the walking wheels is designed in an adjustable manner, and compared with a structure that the walking wheels of a traditional steel rail grinding trolley are relatively fixed, the wheel track of the walking wheels can be adjusted to meet the grinding requirements of different line track gauges (a standard gauge, a wide rail and a narrow rail);

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

(3) according to the steel rail grinding trolley frame described in the specific embodiment of the invention, the distance between the mounting seats of the grinding units of the left and right side frames 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;

(4) according to the steel rail polishing trolley frame described in the specific embodiment of the invention, an independent symmetrical frame structure is adopted, the polishing unit mounting frame is positioned at the top of the trolley, the middle and lower spaces of the trolley are both in an open structure, and a modular 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 detachment, installation and maintenance can be more convenient, the maintenance cost is obviously reduced, and great convenience is provided for the subsequent maintenance of the polishing trolley and the polishing unit.

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

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention.