阅读说明：本技术 一种打磨小车防火防尘装置 (Fireproof and dustproof device of polishing trolley ) 是由 郭平 张东方 余高翔 王�华 刘洁 罗旦 赵宇晨 李雪辉 杨全 李从祥 于 2020-06-30 设计创作，主要内容包括：本发明公开了一种打磨小车防火防尘装置,包括：顶部盖板、端部挡板、集尘通道、侧部挡板及防火帘。集尘通道布置于顶部盖板的上部,打磨过程中产生的粉尘通过集尘通道进入集尘装置中。侧部挡板布置于顶部盖板沿垂直于作业方向的两侧下部,侧部挡板上设置有散热装置。端部挡板布置于顶部盖板沿作业方向的两侧下部,顶部盖板与侧部挡板,以及端部挡板与侧部挡板之间均采用可拆卸式连接结构。端部挡板、侧部挡板的下部均连接有防火帘。本发明能解决现有打磨小车防火防尘装置采用刚性连接结构,无法实现快速拆装,不便于空间的利用,以及不便于维修操作的技术问题。(The invention discloses a fireproof and dustproof device of a polishing trolley, which comprises: top apron, tip baffle, dust collection channel, lateral part baffle and fire curtain. The dust collecting channel is arranged at the upper part of the top cover plate, and dust generated in the grinding process enters the dust collecting device through the dust collecting channel. The side baffle plates are arranged on the lower portions of the two sides of the top cover plate along the direction perpendicular to the operation direction, and heat dissipation devices are arranged on the side baffle plates. The end baffle plates are arranged at the lower parts of the two sides of the top cover plate along the operation direction, and the top cover plate and the side baffle plates as well as the end baffle plates and the side baffle plates are all detachably connected. The lower parts of the end part baffle and the side part baffle are both connected with fireproof curtains. The invention can solve the technical problems that the existing fireproof and dustproof device of the polishing trolley adopts a rigid connection structure, cannot realize quick assembly and disassembly, is inconvenient for space utilization and maintenance operation.)

1. The utility model provides a dolly of polishing fire prevention dust keeper which characterized in that includes: the dust collector comprises a top cover plate (1), an end baffle (2), a dust collecting channel (4), a side baffle (5) and a fireproof curtain (8); the dust collecting channel (4) is arranged at the upper part of the top cover plate (1), and dust generated in the grinding process enters the dust collecting device through the dust collecting channel (4); the side baffle plates (5) are arranged at the lower parts of the left side and the right side of the top cover plate (1) along the operation direction of the polishing trolley (100), and the side baffle plates (5) are provided with heat dissipation devices (3); the end part baffle (2) is arranged at the lower parts of the front end and the rear end of the top cover plate (1) along the operation direction of the polishing trolley (100), and the top cover plate (1) and the side part baffle (5) as well as the end part baffle (2) and the side part baffle (5) adopt detachable connection structures; the lower parts of the end part baffle (2) and the side part baffle (5) are both connected with a fireproof curtain (8).

2. The fire and dust prevention device for the sanding trolley according to claim 1, wherein: the heat dissipation device (3) comprises a first heat dissipation hole (12) formed in the side baffle (5) and a sliding cover plate (9) installed on the side baffle (5); the side baffle (5) is provided with a second heat dissipation hole (24), the size of the opening of the heat dissipation device (3) is adjusted by adjusting the staggered angle between the first heat dissipation hole (12) and the second heat dissipation hole (24), and then the air convection rate is changed, so that stepless air regulation of the heat dissipation device (3) is realized.

3. The fire and dust prevention device for the sanding trolley according to claim 2, wherein: one end of the sliding cover plate (9) along the sliding dismounting direction protrudes outwards to form a first fixing part (13), and the other end of the sliding cover plate protrudes outwards to form a second fixing part (14); guide grooves (15) are formed in the first fixing part (13) and the second fixing part (14) along the sliding dismounting direction, and bolts (16) penetrate through the guide grooves (15) and then are fixed on the side baffle (5); when the bolt (16) is loosened, the sliding cover plate (9) is pushed and pulled along the dismounting direction, and the bolt (16) slides in the guide groove (15) so as to adjust the size of the opening of the heat dissipation device (3).

4. The fire and dust protection device for the sanding trolley according to claim 2 or 3, wherein: the side baffle (5) is provided with guide installation parts (19) used for fixedly installing the sliding cover plate (9) in pairs, the two sides of the sliding cover plate (9) fixed with the guide installation parts (19) protrude towards the outer surface to form limiting parts (20), and the guide installation parts (19) and the limiting parts (20) form an interlocking structure.

5. The fire and dust prevention device for the sanding trolley according to claim 4, wherein: the end part of the first fixing part (13) or the second fixing part (14) protrudes towards the outer side surface to form a first handle (10), and a second handle (11) is arranged on the side baffle (5).

6. A sanding carriage as defined in claim 1, 2, 3 or 5 having a fire and dust protection arrangement in which: the upper side edge of the side baffle plate (5) is curled towards the inner lower part to form a U-shaped first locking part (17), the side edge fixed by the top cover plate (1) and the side baffle plate (5) is curled towards the outer upper part to form a U-shaped second locking part (18), and a detachable connection structure for mutual locking is formed between the first locking part (17) and the second locking part (18).

7. The fire and dust prevention device for the sanding trolley according to claim 6, wherein: the top cover plate (1) and the end baffle (2) are formed by mutually fixing and splicing a plurality of unit plates.

8. A sanding carriage as defined in claim 1, 2, 3, 5 or 7 having a fire and dust protection arrangement in which: the side baffle (5) and the end baffle (2) are connected and fixed through a bolt (6), an installation seat (21) for installing the bolt (6) is arranged on the side baffle (5), and a locking seat (22) is arranged on the end baffle (2) at a position corresponding to the bolt (6); the outer surface of the bolt (6) is sleeved with an elastic piece (23), and the elastic piece (23) is arranged in the mounting seat (21) at the same time to prevent the bolt (6) from moving in the locking process.

9. The fire and dust prevention device for the sanding trolley according to claim 8, wherein: the top cover plate (1), the end baffle (2) and the side baffle (5) are all made of aluminum materials.

10. A sanding carriage as defined in claim 1, 2, 3, 5, 7 or 9 wherein: the fireproof curtain (8) is made of high-temperature-resistant graphite carbon fireproof cloth and is arranged below the end baffle (2) and the side baffle (5) through a strip-shaped pressing plate (7).

Technical Field

The invention relates to the technical field of rail engineering machinery, in particular to a fireproof and dustproof device of a stepless air-regulating type grinding trolley applied to a steel rail grinding wagon.

Background

In the running process of a train, because a steel rail is in a severe working environment for a long time, diseases such as fat edges, wave abrasion, rail surface scales and the like are easily generated, and the running safety is seriously influenced. The rail grinding wagon can improve the smoothness of the rail by removing the irregularity factor on the surface of the rail, slow down the development of the surface defect of the rail and prolong the service life of the rail. The grinding trolley is an actuating mechanism for grinding operation and is a key component of the steel rail grinding wagon. In the operation process of the steel rail grinding vehicle, on one hand, sparks and high-temperature scrap iron generated in the steel rail grinding process easily damage the peripheral infrastructure of the steel rail or ignite the peripheral materials of the track to cause fire, and on the other hand, dust generated by grinding can cause the injury of operators, the pollution of the environment and the damage of equipment. The fire prevention dust keeper can form comparatively confined environment through covering grinding device is whole, is favorable to dust collecting device to pass through dust collecting channel and collects the dust to reduce spark and high temperature iron fillings that the rail grinding wagon produced at the operation in-process and produce adverse effect to equipment and all ring edge borders, effectively improve the operational environment. Therefore, the fireproof and dustproof device is used as one of core components of the grinding trolley, and plays an important role in eliminating potential safety hazards of rail grinding wagon 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 present invention provides a fireproof and dustproof device for a polishing trolley, so as to solve the technical problems that the existing fireproof and dustproof device for a polishing trolley adopts a rigid connection structure, cannot be quickly assembled and disassembled, is inconvenient for space utilization, and is inconvenient for maintenance and operation.

In order to achieve the above object, the present invention specifically provides a technical implementation scheme of a fireproof and dustproof device for a polishing trolley, which comprises: top apron, tip baffle, dust collection channel, lateral part baffle and fire curtain. The dust collecting channel is arranged at the upper part of the top cover plate, and dust generated in the grinding process enters the dust collecting device through the dust collecting channel. The side baffle is arranged at the lower part of the top cover plate along the left side and the right side of the operation direction of the polishing trolley, and a heat dissipation device is arranged on the side baffle. The end baffle is arranged at the lower parts of the front end and the rear end of the top cover plate along the operation direction of the polishing trolley, the top cover plate and the side baffle, and a detachable connecting structure is adopted between the end baffle and the side baffle. The lower parts of the end part baffle and the side part baffle are both connected with fireproof curtains.

Further, the heat dissipation device comprises a first heat dissipation hole formed in the side baffle, and a sliding cover plate installed on the side baffle. The side baffle is provided with a second heat dissipation hole, the size of the opening of the heat dissipation device is adjusted by adjusting the staggered angle between the first heat dissipation hole and the second heat dissipation hole, and then the air convection rate is changed, so that the stepless air regulation of the heat dissipation device is realized.

Furthermore, one end of the sliding cover plate along the sliding dismounting direction protrudes outwards to form a first fixing part, and the other end of the sliding cover plate protrudes outwards to form a second fixing part. Guide grooves are formed in the first fixing portion and the second fixing portion along the sliding dismounting direction, and bolts penetrate through the guide grooves and are fixed on the side portion baffle. When the bolts are loosened, the sliding cover plate is pushed and pulled along the dismounting direction, and the bolts slide in the guide grooves to adjust the size of the opening of the heat dissipation device.

Further, be provided with the direction installation department that is used for fixed mounting sliding closure board on the lateral part baffle in pairs, sliding closure board and the fixed both sides of direction installation department are protruding in order to form spacing portion towards the surface, direction installation department and spacing portion form interlocking structure.

Further, the end part of the first fixing part or the second fixing part protrudes towards the outer side surface to form a first handle, and the side baffle is provided with a second handle.

Furthermore, the upper side edge of the side baffle plate is curled towards the inner lower part to form a U-shaped first locking part, the side edge of the top cover plate fixed with the side baffle plate is curled towards the outer upper part to form a U-shaped second locking part, and a detachable connecting structure for mutual locking is formed between the first locking part and the second locking part.

Furthermore, the top cover plate and the end baffle are formed by mutually fixing and splicing a plurality of unit plates.

Furthermore, the side baffle and the end baffle are connected and fixed through a bolt, an installation seat used for installing the bolt is arranged on the side baffle, and a locking seat is arranged at a position, corresponding to the bolt, on the end baffle. The outer surface cover of bolt is equipped with the elastic component, the elastic component arranges simultaneously in the mount pad to prevent the bolt takes place to remove in the locking process.

Preferably, the top cover plate, the end baffle and the side baffle are made of aluminum materials.

Preferably, the fireproof curtain is made of high-temperature-resistant graphite carbon fireproof cloth and is arranged below the end baffle and the side baffle through strip-shaped pressing plates.

Through implementing the technical scheme of the fireproof and dustproof device of the polishing trolley provided by the invention, the fireproof and dustproof device has the following beneficial effects:

(1) according to the fireproof and dustproof device for the polishing trolley, the top cover plate and the side baffle as well as the end baffle and the side baffle are of detachable connection structures, and compared with a rigidly connected door plate structure, when the internal structure of the polishing trolley needs to be maintained, the side baffle can be directly detached conveniently, so that the shielding of the baffle on the side space is avoided, and a larger maintenance operation space is reserved for maintenance personnel;

(2) according to the fireproof and dustproof device for the polishing trolley, a closed structure combining hanging connection and a bolt is adopted, the sealing performance of the structure of the steel rail polishing trolley is improved, the overflow of dust in the polishing process can be effectively reduced, and therefore the polishing dust can be effectively collected into the dust collecting device, so that the damage of the dust to operating personnel, the pollution to the environment and the damage to equipment are reduced;

(3) according to the fireproof and dustproof device for the polishing trolley, the radiating grooves are additionally formed in the side baffle plates, so that the internal radiating condition of the polishing trolley during operation is improved, the internal part of the polishing trolley is subjected to air cooling radiation through natural wind in the operation traveling process, and the damage to a polishing unit and other parts caused by overhigh internal temperature of the polishing trolley is effectively avoided;

(4) the fireproof and dustproof device of the polishing trolley adopts a stepless air adjusting structure consisting of a side baffle heat dissipation device, a handle and a movable limiting groove (namely a guide installation part), and the size of an opening of the heat dissipation groove is changed through the handle, so that the convection heat dissipation efficiency of the polishing trolley is changed; the size of the opening of the heat dissipation groove is adjusted in real time according to actual working conditions and requirements, so that the heat dissipation performance is ensured, meanwhile, the dust overflow can be reduced, and the dust collection effect of the polishing trolley is not influenced;

(5) according to the fireproof and dustproof device for the polishing trolley, the plate structures and the fireproof curtains at all parts can effectively prevent sparks and high-temperature scrap iron from splashing outwards to hurt other facilities beside a steel rail or ignite substances around the rail to cause fire, the main body structures are made of aluminum materials, and the lightweight design of a fireproof and dustproof system is effectively realized.

Drawings

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

FIG. 1 is a schematic perspective view of a fire and dust protection device of a sanding trolley according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a fire and dust protection device of a sanding trolley according to an embodiment of the present invention with a heat dissipation device removed;

FIG. 3 is a schematic front view of the fire and dust protection device of the sanding trolley according to one embodiment of the present invention;

FIG. 4 is a schematic side view of the structure of one embodiment of the fire and dust protection apparatus for a sanding trolley of the present invention;

FIG. 5 is a schematic top view of the fire and dust protection device of the sanding trolley according to one embodiment of the present invention;

FIG. 6 is a schematic structural view of a heat sink in an embodiment of the present invention;

FIG. 7 is a partial schematic structural view of portion A of FIG. 1 in accordance with the present invention;

FIG. 8 is a partial schematic structural view of portion B of FIG. 3 in accordance with the present invention;

FIG. 9 is a partial schematic structural view of portion C of FIG. 4 in accordance with the present invention;

in the figure: 1-top cover plate, 2-end baffle, 3-heat dissipation device, 4-dust collection channel, 5-side baffle, 6-bolt, 7-pressing plate, 8-fire-proof curtain, 9-sliding cover plate, 10-first handle, 11-second handle, 12-first heat dissipation hole, 13-first fixing part, 14-second fixing part, 15-guide groove, 16-bolt, 17-first locking part, 18-second locking part, 19-guide mounting part, 20-limiting part, 21-mounting seat, 22-locking seat, 23-elastic part, 24-second heat dissipation hole and 100-fire-proof and dust-proof 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 fireproof and dustproof device of the grinding trolley of the present invention is shown, and the present invention will be further described with reference to the drawings and the specific embodiment.

As shown in fig. 1, 2 and 5, in an embodiment of a fire and dust prevention device for a sanding trolley, the fire and dust prevention device 100 is installed outside the sanding trolley and specifically includes: top cover plate 1, end baffle plate 2, dust collecting channel 4, side baffle plate 5 and fire-proof curtain 8. The dust collecting channel 4 is arranged at the upper part of the top cover plate 1, and dust generated in the grinding process enters the dust collecting device through the dust collecting channel 4. The side baffle 5 is arranged at the lower part of the top cover plate 1 along the left and right sides of the operation direction of the grinding trolley 100 (the direction is L in the attached drawing 1, and the direction is the vertical direction of the operation direction of the grinding trolley 100 as W), and the side baffle 5 is provided with a heat dissipation device 3. The end baffle 2 is arranged at the lower parts of the front end and the rear end of the top cover plate 1 along the operation direction of the polishing trolley 100, and the top cover plate 1 and the side baffle 5 as well as the end baffle 2 and the side baffle 5 adopt detachable connection structures. The lower parts of the end baffle 2 and the side baffle 5 are both connected with a fireproof curtain 8. According to the specific embodiment of the invention, the fireproof and dustproof device 100 is designed into a relatively closed structure through the top cover plate 1, the end baffle 2, the side baffle 5 and the fireproof curtain 8, so that dust can be effectively collected in the polishing operation process, the pollution to the environment and the damage to equipment are reduced, and the working environment of operators is improved.

As shown in fig. 1, the heat sink 3 further includes a first heat dissipation hole 12 formed in the side shield 5, and a sliding cover plate 9 mounted on the side shield 5. As shown in fig. 2, the side baffle 5 is provided with a second heat dissipation hole 24, and the size of the opening of the heat dissipation device 3 is adjusted by adjusting the staggered angle between the first heat dissipation hole 12 and the second heat dissipation hole 24, so as to change the air convection rate, thereby realizing stepless air regulation (i.e. stepless continuous air regulation) of the heat dissipation device 3. The fireproof and dustproof device for the grinding trolley, which is described in the specific embodiment of the invention, has a stepless air regulation type heat dissipation structure, can effectively prevent fire hazards caused by splashing of grinding sparks, is convenient for collecting grinding dust to reduce environmental pollution, and is suitable for various steel rail grinding trolleys.

As shown in fig. 6 and 8, one end of the slide cover plate 9 in the slide attaching and detaching direction protrudes outward to form a first fixing portion 13, and the other end protrudes outward to form a second fixing portion 14. Guide grooves 15 are formed in the first fixing portion 13 and the second fixing portion 14 along the sliding dismounting direction, and bolts 16 penetrate through the guide grooves 15 and are fixed on the side baffle 5. When the bolts 16 are loosened, the sliding cover plate 9 is pushed and pulled in the dismounting direction, and the bolts 16 slide in the guide grooves 15 to adjust the size of the opening of the heat sink 3. A large amount of heat that produces when the dolly operation of polishing leads to the dolly inside high temperature of polishing easily, can realize forced air cooling convection heat dissipation through heat abstractor 3, improves the heat-sinking capability of dolly of polishing, reduces the damage of inside high temperature to grinding motor and other spare parts.

As shown in fig. 9, the side blocking plates 5 are provided with guide mounting portions 19 in pairs for fixedly mounting the sliding cover plate 9, two sides of the sliding cover plate 9 fixed with the guide mounting portions 19 protrude toward the outer surface to form limiting portions 20, and the guide mounting portions 19 and the limiting portions 20 form an interlocking structure. As shown in fig. 3 and 4, the end of the first fixing portion 13 or the second fixing portion 14 is protruded toward the outer side surface to form a first handle 10, and the side barrier 5 is provided with a second handle 11. The sliding cover plate 9 of the heat dissipation device 3 can move in the movement limiting groove formed by the guide installation part 19, the sliding cover plate 9 is moved to any position of the guide installation part 19 through the first handle 10, the size of the heat dissipation holes is adjusted through the staggered position between the first heat dissipation holes 12 on the side baffle 5 and the second heat dissipation holes 24 on the sliding cover plate 9, the air convection rate is further changed, and the stepless air regulation function of the heat dissipation device 3 is realized. According to actual working conditions such as the internal environment temperature of the polishing trolley, dust collection requirements and the like, the hole opening size of the heat dissipation device 3 can be adjusted in real time, and the overflow of dust can be reduced while effective heat dissipation is realized.

As shown in fig. 9, the upper side edge of the side baffle 5 is curled toward the inner lower part to form a U-shaped first locking part 17, the side edge of the top cover plate 1 fixed with the side baffle 5 is curled toward the outer upper part to form a U-shaped second locking part 18, and a mutually locked detachable connection structure is formed between the first locking part 17 and the second locking part 18. Top apron 1 and end baffle 2 are formed by the fixed concatenation of a plurality of cell boards (platelet) each other, and dust collecting channel 4 welds on top apron 1, and dust collecting channel 4 passes through the pipeline intercommunication with the dust collecting device who is located in the car carriage of the car of polishing above it. As shown in the attached drawings 1 and 5, the top cover plate 1 is divided into a left part and a right part, the structures are completely the same, the single side is provided with four small cover plates, the small cover plates can be connected in a welding mode or connected through bolts, and the disassembly during maintenance is more convenient when the bolts are used for connection.

As shown in fig. 7, the side baffle 5 and the end baffle 2 are connected and fixed through a bolt 6, an installation seat 21 for installing the bolt 6 is arranged on the side baffle 5, and a locking seat 22 is arranged on the end baffle 2 at a position corresponding to the bolt 6. The outer surface of the bolt 6 is sleeved with an elastic member 23, the elastic member 23 is simultaneously arranged in the mounting seat 21 to prevent the bolt 6 from moving in the locking process, and the elastic member 23 may specifically be a spring. The side baffle 2 is designed to adopt a detachable connection mechanism, in this embodiment, the connection side edges between the side baffle 5 and the top cover plate 1 are designed to be U-shaped hook structures (as shown in fig. 9), the side baffle 5 can be hung on the top cover plate 1 during installation, and then the relative position between the side baffle 5 and the end baffle 2 is fixed through the bolt 6. U-shaped couple structure and bolt formula are connected and have been guaranteed the detachability of lateral part baffle 5, from this, when needing to maintain grinding device, can comparatively swiftly dismantle lateral part baffle 5 directly get off. Compared with the traditional rigidly connected side door panel type structure, the structure can leave more space for maintenance personnel to carry out maintenance operation.

As a preferred embodiment of the present invention, the top cover plate 1, the end baffle 2 and the side baffle 5 are made of aluminum, so as to effectively achieve the light weight design of the fireproof and dustproof device 100. The fire curtain 8 adopts high temperature resistant graphite carbon material fire prevention cloth to through the mounting of the clamp plate 7 of strip and tip baffle 2 and lateral part baffle 5's below, fire curtain 8 also can adopt the fire prevention cloth of other materials to replace. The fire curtain supplements the lower parts of the side baffle 5 and the end baffle 2 of the fire-proof and dust-proof device 100, so that high-temperature scrap iron and sparks splashing outwards when the grinding device is used for grinding can be shielded more effectively, the damage to the infrastructure around the railway is avoided, and the fire hazard is caused.

By implementing the technical scheme of the fireproof and dustproof device of the grinding trolley described in the specific embodiment of the invention, the following technical effects can be achieved:

(1) according to the fireproof and dustproof device for the polishing trolley, which is described in the specific embodiment of the invention, the top cover plate and the side baffle as well as the end baffle and the side baffle are respectively of a detachable connection structure, so that compared with a door plate structure in rigid connection, when the internal structure of the polishing trolley needs to be maintained, the side baffle can be directly detached conveniently, the side space is prevented from being shielded by the baffle, and a larger maintenance operation space is reserved for maintenance personnel;

(2) according to the fireproof and dustproof device for the polishing trolley, which is described in the specific embodiment of the invention, a closed structure combining hanging connection and a bolt is adopted, so that the sealing performance of the structure of the steel rail polishing trolley is improved, the overflow of dust in the polishing process can be effectively reduced, and the polishing dust can be more effectively collected into a dust collecting device, so that the damage of dust to operating personnel, the pollution to the environment and the damage to equipment are reduced;

(3) according to the fireproof and dustproof device for the polishing trolley, which is described in the specific embodiment of the invention, the heat dissipation groove is additionally arranged on the side baffle plate, so that the internal heat dissipation condition of the polishing trolley during operation is improved, the internal part of the polishing trolley is subjected to air cooling heat dissipation through natural wind in the operation traveling process, and the damage to a polishing unit and other parts caused by overhigh internal temperature of the polishing trolley is effectively avoided;

(4) the fireproof and dustproof device for the polishing trolley described in the specific embodiment of the invention adopts a stepless air adjusting structure consisting of a side baffle heat dissipation device, a handle and a movable limiting groove (namely a guide installation part), and the size of an opening of the heat dissipation groove is changed through the handle, so that the convection heat dissipation efficiency of the polishing trolley is changed; the size of the opening of the heat dissipation groove is adjusted in real time according to actual working conditions and requirements, so that the heat dissipation performance is ensured, meanwhile, the dust overflow can be reduced, and the dust collection effect of the polishing trolley is not influenced;

(5) according to the fireproof and dustproof device for the polishing trolley, which is described in the specific embodiment of the invention, the plate structures and the fireproof curtains at all parts can effectively prevent sparks and high-temperature scrap iron from splashing outwards to hurt other facilities beside a steel rail or ignite substances around the rail to cause fire, the main body structures are made of aluminum materials, and the lightweight design of a fireproof and dustproof system is effectively realized.

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.