Maintenance car for rail transit

Abstract

The utility model belongs to the technical field of rail transit, and discloses a maintenance car for rail transit, which comprises a base, wheels are mounted on the base, the front sides of the wheels are fixedly connected with a cleaning and scraping assembly, the cleaning and scraping assembly is connected with a hot air assembly, and limiting assemblies are mounted on the left side and the right side of the base. The cleaning and scraping assembly comprises a fixing rod fixedly connected with the base, the fixing rod is fixedly connected with a shell, a plurality of cleaning and scraping strips arranged at equal intervals are arranged on the inner side of the shell, the hot air assembly comprises an air heater installed on the base, an outlet of the air heater is connected with a three-way pipe, and the three-way pipe is connected with a hot air guide pipe. The cleaning and scraping strips on the front sides of the wheels can clean rainwater and ice and snow on the track, water stains and residual ice and snow are further reduced through hot air, it is avoided that friction force between the wheels and the track is reduced due to the rainwater and the ice and snow, and the wheels of the maintenance car slip is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation, in particular to a maintenance vehicle for rail transportation. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. The most typical rail transit is a railway system composed of traditional trains and standard railways. Common rail transit includes traditional railways, subways, light rail and trams. New rail transit includes magnetic levitation rail systems, monorail systems and automatic passenger rapid transit systems. In the daily use of the rail transit system, the tracks are inspected and maintained every day to keep the tracks running stably. During the track maintenance process, maintenance vehicles are used as a maintenance tool.

[0003] Chinese patent application number 202321969737.5 discloses a rail transit maintenance vehicle, including a base, a dust removal mechanism is provided on the top of the base, and the dust removal mechanism includes a dust collector. The front of the dust collector is rotatably connected to one end of two conduits, and the other ends of the two conduits are fixedly connected to two shells respectively. By setting an adjustment mechanism, when the rail transit maintenance vehicle needs a traction vehicle to provide power in the front, the handle can be lifted upward to make the limit pin enter the top of the two guide blocks, so that the bottom end of the handle moves out of the limit range of the fixed frame, so that the handle can tilt forward. After the restriction of the handle is released, the hook can be connected to the traction vehicle. When the rail transit maintenance vehicle is finished using, the handle is reset, and the two conduits are folded to the middle and clamped on both sides of the clamping ring to facilitate the storage of the rail transit maintenance vehicle.

[0004] However, the above-mentioned rail transit maintenance vehicle has the following problems during actual use: in rainy and snowy weather, the friction between the wheels of the maintenance vehicle and the track is greatly reduced, which makes the maintenance vehicle prone to slipping during driving, seriously affecting the driving stability and safety.

[0005] Therefore, in order to solve the above problems, a rail transit maintenance vehicle is proposed. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a rail transit maintenance vehicle, which has the advantages of cleaning rainwater and ice and snow on the track in front of the maintenance vehicle wheels, avoiding safety hazards caused by wheel slippage.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a rail transit maintenance vehicle, comprising a base, a wheel mounted on the base, a scraping assembly fixedly connected to the front side of the wheel, the scraping assembly being connected to a hot air assembly, and limit assemblies mounted on the left and right sides of the base;

[0008] The scraping assembly includes a fixed rod fixedly connected to the base, the fixed rod is fixedly connected to the shell, and the inner side of the shell is provided with a plurality of equidistantly arranged scraping strips;

[0009] The hot air assembly includes a hot air blower installed on a base, the outlet of the hot air blower is connected to a three-way pipe, the three-way pipe is connected to a hot air duct, the hot air duct is connected to an exhaust duct, the exhaust duct is arranged on the rear side of the shell, and a plurality of equally spaced hot air outlets are installed at the bottom of the exhaust duct.

[0010] Preferably, a fixing seat is fixedly connected to the bottom of the base, an axle is rotatably connected between the left and right fixing seats, and both ends of the axle pass through the fixing seat to be connected to the wheels.

[0011] Preferably, the limiting assembly includes a rack, the rack is provided with a positioning bolt, and the positioning bolt is movably connected to the base.

[0012] Preferably, the bottom of the rotating plate is connected to two correspondingly arranged positioning wheels.

[0013] Preferably, mounting seats are fixedly connected to both sides of the base, and the rotating rod passes through the mounting seats.

[0014] Preferably, the rack is slidably connected to the base via a limiting slide rail, and the position structure of the positioning wheel matches the rail.

[0015] Preferably, the structure of the cleaning strip matches the rail, and the cleaning strip is connected to the housing via bolts.

[0016] Preferably, a support plate is fixedly connected to the rear side of the housing, the exhaust duct is provided on the support plate, and the hot air outlet passes through the support plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. The utility model is provided with a scraping assembly and a hot air assembly. In rainy and snowy weather, the scraping strips on the front side of the wheel can clean the rain and ice and snow on the track, and then rely on the hot air to further reduce water stains and residual ice and snow, thereby preventing the friction between the wheel and the track caused by rain and ice and snow, and preventing the wheels of the maintenance vehicle from slipping.

[0019] 2. The utility model sets a limit component and two positioning wheels that match the track structure. The two positioning wheels are tightly attached to the inner walls on both sides of the track to prevent the maintenance vehicle from tipping over, which is conducive to ensuring the stability of the maintenance vehicle during driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the base of the utility model;

[0022] Figure 3 This is a schematic structural diagram of the hot air assembly of the utility model;

[0023] Figure 4 This is a schematic structural diagram of the scraping assembly of the utility model;

[0024] Figure 5 This is a structural diagram of the positioning component of the utility model.

[0025] In the figure: 1. Base; 2. Wheels;

[0026] 3. Scraping assembly; 301. Fixing rod; 302. Housing; 303. Scraping strip;

[0027] 4. Hot air assembly; 401. Hot air blower; 402. Tee pipe; 403. Hot air duct; 404. Exhaust pipe; 405. Hot air outlet; 406. Support plate;

[0028] 5. Limiting assembly; 501. Rack; 502. Positioning bolt; 503. Gear; 504. Rotating rod; 505. Rotating plate; 506. Positioning wheel; 507. Mounting seat;

[0029] 6. Fixed seat; 7. Axle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 5 As shown, the utility model provides a rail transit maintenance vehicle, comprising a base 1, a wheel 2 mounted on the base 1, a scraping assembly 3 fixedly connected to the front side of the wheel 2, the scraping assembly 3 being connected to a hot air assembly 4, and a limiting assembly 5 mounted on the left and right sides of the base 1. In rainy and snowy weather, the scraping strips 303 on the front side of the wheel 2 can clean rainwater and ice and snow on the track, and then rely on hot air to further reduce water stains and residual ice and snow, thereby preventing the friction between the wheel 2 and the track from being reduced due to rainwater and ice and snow, and preventing the wheel 2 of the maintenance vehicle from slipping.

[0032] The scraping assembly 3 includes a fixed rod 301 fixedly connected to the base 1, the fixed rod 301 is fixedly connected to the housing 302, and a plurality of equally spaced scraping strips 303 are provided on the inner side of the housing 302. The arrangement of the plurality of scraping strips 303 can better clean rainwater and ice and snow;

[0033] The hot air assembly 4 includes a hot air blower 401 installed on the base 1, the outlet of the hot air blower 401 is connected to a three-way pipe 402, the three-way pipe 402 is connected to a hot air duct 403, the hot air duct 403 is connected to an exhaust duct 404, the exhaust duct 404 is arranged on the rear side of the shell 302, and a plurality of equally spaced hot air outlets 405 are installed at the bottom of the exhaust duct 404.

[0034] Specifically, a fixing seat 6 is fixedly connected to the bottom of the base 1 , and an axle 7 is rotatably connected between the left and right fixing seats 6 . Both ends of the axle 7 pass through the fixing seats 6 to connect to the wheels 2 .

[0035] Furthermore, the limiting assembly 5 includes a rack 501, on which a positioning bolt 502 is provided, which is movably connected to the base 1, and the rack 501 is meshed with a gear 503, and the bottom of the gear 503 is fixedly connected to a rotating plate 505 through a rotating rod 504, and the bottom of the rotating plate 505 is connected to two corresponding positioning wheels 506, which are matched with the track structure. The two positioning wheels 506 are tightly attached to the inner walls on both sides of the track to prevent the maintenance vehicle from tipping over, which is conducive to ensuring the stability of the maintenance vehicle during driving.

[0036] Furthermore, mounting seats 507 are fixedly connected to both sides of the base 1 , and the rotating rod 504 passes through the mounting seats 507 .

[0037] It is worth noting that the rack 501 is slidably connected to the base 1 through a limiting slide rail, the position structure of the positioning wheel 506 matches the rail, and the position of the rack 501 is limited by the limiting slide rail.

[0038] It is worth noting that the structure of the cleaning strip 303 matches the rail, and the cleaning strip 303 is connected to the housing 302 via bolts.

[0039] It is worth mentioning that a support plate 406 is fixedly connected to the rear side of the housing 302 , the exhaust duct 404 is provided on the support plate 406 , and the hot air outlet 405 passes through the support plate 406 .

[0040] Among them, the hot air blower 401 is an existing technology and will not be described in detail; at the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of this patent and will not be described in detail.

[0041] Working principle and process: When the maintenance vehicle is placed on the track, the wheel 2 is located at the top of the track. At this time, the two positioning wheels 506 of the limiting component 5 are located on both sides of the track, pushing the rack 501, and then the gear 503 rotates, and then the rotating rod 504 drives the rotating plate 505 to rotate, so that the positioning wheels 506 are against the inner walls of both sides of the track, and are connected to the base 1 through the positioning bolts 502 on the rack 501 for positioning and fixing. When the maintenance vehicle moves on the track, the shell 302 of the scraping component 3 is sleeved on the outside of the track, and the scraping bar 3 03 During the movement, rainwater, ice and snow on the track can be scraped off, and some adhered foreign matter can also be removed to avoid interference with the detection of the detection probe. The hot air blower 401 of the hot air component 4 is started, and then the hot air is discharged from the hot air outlet 405 after passing through the three-way pipe 402, the hot air duct 403, and the exhaust pipe 404. The hot air can be used to further remove water stains, residual ice and snow, and dust on the track, which can effectively prevent rainwater and ice and snow from reducing the friction between the wheel 2 and the track, and prevent the wheel 2 of the maintenance vehicle from slipping.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rail transit maintenance vehicle, comprising a base (1), characterized in that: A wheel (2) is mounted on the base (1); a scraping assembly (3) is fixedly connected to the front side of the wheel (2); the scraping assembly (3) is connected to a hot air assembly (4); and limiting assemblies (5) are mounted on the left and right sides of the base (1); The scraping assembly (3) comprises a fixed rod (301) fixedly connected to the base (1), the fixed rod (301) being fixedly connected to a housing (302), and a plurality of equidistantly arranged scraping strips (303) are provided on the inner side of the housing (302); The hot air assembly (4) comprises a hot air blower (401) mounted on a base (1); the outlet of the hot air blower (401) is connected to a three-way pipe (402); the three-way pipe (402) is connected to a hot air duct (403); the hot air duct (403) is connected to an exhaust pipe (404); the exhaust pipe (404) is arranged on the rear side of the housing (302); and a plurality of hot air outlets (405) arranged at equal intervals are installed at the bottom of the exhaust pipe (404).

2. A rail transit maintenance vehicle according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to a fixing seat (6), and an axle (7) is rotatably connected between the left and right fixing seats (6). Both ends of the axle (7) pass through the fixing seat (6) and are connected to the wheels (2).

3. The rail transit maintenance vehicle according to claim 1, characterized in that: The limiting assembly (5) includes a rack (501), a positioning bolt (502) is provided on the rack (501), the positioning bolt (502) is movably connected to the base (1), the rack (501) is meshed with a gear (503), the bottom of the gear (503) is fixedly connected to a rotating plate (505) via a rotating rod (504), and the bottom of the rotating plate (505) is connected to two correspondingly arranged positioning wheels (506).

4. A rail transit maintenance vehicle according to claim 3, characterized in that: Mounting seats (507) are fixedly connected to both sides of the base (1), and the rotating rod (504) passes through the mounting seats (507).

5. The rail transit maintenance vehicle according to claim 3, characterized in that: The rack (501) is slidably connected to the base (1) via a limiting slide rail, and the position structure of the positioning wheel (506) matches the rail.

6. The rail transit maintenance vehicle according to claim 1, characterized in that: The structure of the cleaning strip (303) matches the rail, and the cleaning strip (303) is connected to the housing (302) via bolts.

7. The rail transit maintenance vehicle according to claim 1, characterized in that: A support plate (406) is fixedly connected to the rear side of the housing (302), the exhaust pipe (404) is arranged on the support plate (406), and the hot air outlet (405) passes through the support plate (406).

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