阅读说明：本技术 一种用于铁轨的自动化调直设备 (Automatic straightening equipment for rails ) 是由 柳七峰 于 2020-06-01 设计创作，主要内容包括：本发明提供一种用于铁轨的自动化调直设备,其包括待调直铁轨以及支撑在待调直铁轨上,且可在待调直铁轨上移动的载板；所述待调直铁轨的数量设置有两根,且相互对称设置；所述载板两侧分别设置有相互对称的调直单元组、其中间后部位置设置有用于转移调直单元组位置的机械手单元；所述载板下端往铁轨方向处设置有用于检测铁轨实际状态的相机以及采集其数据的并且处理图像处理装置；所述机械手单元根据图像处理装置处理结果进行动作处理,所述机械手单元通过设置在其上面的电磁夹具吸合调直单元组放置到待调直铁轨上。其增设一组调直单元组的设计,可以同时对一组待调直铁轨进行调直作业,使得调直作业更加完善,功能也更加强大。(The invention provides automatic straightening equipment for a rail, which comprises a rail to be straightened and a carrier plate which is supported on the rail to be straightened and can move on the rail to be straightened; the number of the rails to be straightened is two, and the rails to be straightened are symmetrically arranged; two sides of the support plate are respectively provided with a mutually symmetrical straightening unit group, and the middle rear part of the support plate is provided with a manipulator unit for transferring the position of the straightening unit group; a camera for detecting the actual state of the rail and an image processing device for acquiring data and processing the image are arranged at the lower end of the carrier plate in the direction from the lower end of the carrier plate to the rail; and the manipulator unit carries out action processing according to the processing result of the image processing device, and the manipulator unit is placed on the rail to be straightened through an electromagnetic clamp suction straightening unit group arranged on the manipulator unit. The design of adding a set of alignment unit group can be used for simultaneously carrying out alignment operation on a set of rails to be aligned, so that the alignment operation is more perfect and the function is more powerful.)

1. An automatic straightening device for a rail comprises a rail (1) to be straightened and a carrier plate (2) which is supported on the rail (1) to be straightened and moves; the number of the rails (1) to be straightened is two, and the rails are arranged symmetrically; two sides of the support plate (2) are respectively provided with a mutually symmetrical straightening unit group (3), and the middle rear part of the support plate is provided with a manipulator unit (5) for transferring the position of the straightening unit group (3); the method is characterized in that: a camera (4) for detecting the actual state of the rail and an image processing device (6) for acquiring data and processing the data are arranged at the lower end of the carrier plate (2) towards the rail direction; the manipulator unit (5) performs action processing according to the processing result of the image processing device (6), and the manipulator unit (5) attracts the straightening unit group (3) through an electromagnetic clamp (51) arranged on the manipulator unit and places the straightening unit group on the rail (1) to be straightened.

2. An automated alignment apparatus for a railway rail according to claim 1, wherein: the image processing apparatus (6) includes:

a rail area identification module (61) for determining a rail area in the current frame picture;

a region-of-interest extraction module (62) for extracting a region of interest of a "]" section region in the current frame picture, wherein the region of interest includes the rail region;

the judging module (63) is used for judging whether the proportion of the range of the region of interest in the current frame picture is larger than a first preset value;

the image processing module (64) is used for processing the region of interest after the resolution is adjusted according to a preset deep learning model; and transmitting the result to the manipulator unit (5), wherein the manipulator unit (5) controls the mutually symmetrical straightening unit groups (3) to straighten the rail (1) to be straightened.

3. An automated alignment apparatus for a railway rail according to claim 1, wherein: also comprises a preheating unit (7); the preheating unit (7) comprises an oxygen tank (71) and a liquefied gas tank (72) which are movably arranged on the carrier plate (2), a comb tube device (73), an oxygen conveying conduit (74) and a liquefied gas conveying conduit (75); wherein the oxygen tank (71) and the liquefied gas tank (72) are respectively connected with the straightening unit group (3) through an oxygen conveying conduit (74) and a liquefied gas conveying conduit (75).

4. An automated alignment apparatus for a rail according to claim 3, wherein: the device is characterized by further comprising a plurality of three-way pipes (76), the three-way pipes (76) are connected to the middle of the oxygen conveying guide pipe (74) of the oxygen tank (71), and the three-way pipes (76) are connected to the middle of the liquefied gas conveying guide pipe (75) of the liquefied gas tank (72).

5. An automated alignment apparatus for a railway rail according to claim 1, wherein: the straightening unit group (3) comprises two straightening units which are arranged at two end parts of the carrier plate (2) and are symmetrical to each other; the straightening unit comprises a large pressure-bearing frame (31), a small pressure-bearing frame (32) fixed inside the large pressure-bearing frame (31), a hydraulic oil pump (33) fixedly arranged on the inner surface of the rear side of the large pressure-bearing frame (31) through a bolt, a hydraulic cylinder (34) fixedly connected with the inner surface of the rear side of the small pressure-bearing frame (32) in position, and clamping mechanisms (35) arranged at two corners of the front side of the large pressure-bearing frame (31), wherein a lifting transfer fixing frame (36) is arranged between the large pressure-bearing frame (31) and the small pressure-bearing frame (32), and the lifting transfer fixing frame (36) is fixedly arranged between the large pressure-bearing frame (31) and the small pressure-bearing frame (32) through a welding process.

6. An automated alignment apparatus for a rail according to claim 5, wherein: the clamping mechanism (35) comprises a substrate (351) and clamping pieces (355), the substrate (351) is a component with a cuboid structure and is a component made of carbon steel, and the substrate (351) is symmetrically provided with the clamping pieces (355) with two structures and the same size through bolts and the clamping pieces (355).

7. An automated alignment apparatus for a railway rail according to claim 6, wherein: the base plate (351) is provided with an L-shaped fixed frame (77), a baking gun (78) is installed in the front end of the fixed frame (77) in a penetrating mode, and fuel supply of the baking gun (78) is provided through an oxygen conveying conduit (74) and a liquefied gas conveying conduit (75).

8. An automated alignment apparatus for a rail according to claim 5, wherein: the device also comprises a plurality of rolling wheels (37), wherein the rolling wheels (37) are arranged on the substrate (351) in a matching way through rotating shafts; the straightening unit group (3) moves on the rail (1) to be straightened through a rolling wheel (37) capable of walking.

9. An automated alignment apparatus for a railway rail according to claim 1, wherein: rotatable wheels (22) are installed on the lower surface of the support plate (2), the number of the wheels (22) is four, the four wheels (22) are distributed on the lower surface of the support plate (2) in a rectangular mode, and the shapes of the wheels are matched with the shape of the top of the rail (1) to be straightened.

10. An automated alignment apparatus for a rail according to claim 5, wherein: the hydraulic oil pump (33) is internally provided with hydraulic oil, and the hydraulic oil pump (33), the hydraulic cylinder (34) and a hydraulic oil pipe connected between the hydraulic oil pump (33) and the hydraulic cylinder (34) jointly form a hydraulic oil flow-through loop.

Technical Field

The invention relates to the technical field of production lines, in particular to automatic straightening equipment for rails.

Background

Railway tracks, referred to as rails, tracks, etc. The device is used on railways and cooperates with a switch to enable the train to walk without turning. The track is usually composed of two parallel rails. The rails are fixed on sleepers, and ballast is arranged below the sleepers. Rails made of steel can bear a greater weight than other materials. Sleepers, also known as crossties or sleepers, function to spread the weight of the rails separately and to keep the rails fixed and to maintain the gauge of the rails. Generally, the bottom of the track is gravel. The ballast, also known as ballast, ballast stone or ballast bed, provides elasticity and drainage function for the track. The rails can also be laid on concrete foundations (as is quite common on bridges) or even embedded in concrete.

The invention discloses a stable and movable rail straightening device for a railway, which is a Chinese invention with the publication number of CN109537379A, and comprises a rail to be straightened and a support plate arranged on the rail to be straightened, wherein a straightening unit used for straightening a bent steel rail is arranged on the upper surface of the support plate, and a preheating unit for raising the temperature of the steel rail is fixedly arranged at the position, close to the rear side of the straightening unit, of the upper surface of the support plate.

The technical scheme has the following defects: according to an analysis that the straightening unit is heavy in weight and the flame guns have a high temperature, the above solution does not disclose how the straightening unit is placed on the rail to be straightened.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide automatic straightening equipment for a rail, which can simultaneously straighten a group of rails to be straightened, so that the straightening operation is more perfect and the function is more powerful.

The above object of the present invention is achieved by the following technical solutions:

the invention discloses automatic straightening equipment for a rail, which comprises a rail to be straightened and a carrier plate capable of moving on the rail to be straightened; the number of the rails to be straightened is two, and the rails to be straightened are symmetrically arranged; two sides of the support plate are respectively provided with a mutually symmetrical straightening unit group, and the middle rear part of the support plate is provided with a manipulator unit for transferring the position of the straightening unit group; a camera for detecting the actual state of the rail and an image processing device for acquiring data and processing the image are arranged at the lower end of the carrier plate in the direction from the lower end of the carrier plate to the rail; and the manipulator unit carries out action processing according to the processing result of the image processing device, and the manipulator unit is placed on the rail to be straightened through an electromagnetic clamp suction straightening unit group arranged on the manipulator unit.

By adopting the technical scheme, the image processing device with the camera for identifying the rail to be straightened is arranged on the support plate, when the rail to be straightened is found, a group of mutually symmetrical straightening unit groups on the support plate can be controlled, and the straightening unit groups are controlled by the suction of the manipulator unit according to actual needs to straighten a certain rail or two rails, so that the automatic operation is realized.

The present invention in a preferred example may be further configured to: the image processing apparatus includes: the rail area identification module is used for determining a rail area in the current frame picture;

the interesting region extracting module is used for extracting an interesting region of a' part region in the current frame picture, wherein the interesting region comprises the rail region;

the judging module is used for judging whether the proportion of the range of the region of interest in the current frame picture is larger than a first preset value;

the image processing module is used for processing the region of interest after the resolution is adjusted according to a preset deep learning model; and transmitting the result to the manipulator unit, and controlling the mutually symmetrical straightening unit groups to straighten the rail to be straightened by the manipulator unit.

By adopting the technical scheme, the rail area in the picture is identified by taking the picture through the camera, particularly the induction area of the 'part' area in the rail area is identified, and the rail area is judged after analysis, is automatically identified, and is convenient and fast.

The present invention in a preferred example may be further configured to: the device also comprises a preheating unit; the preheating unit comprises an oxygen tank and a liquefied gas tank which are movably arranged on the carrier plate, a comb tube device, an oxygen conveying conduit and a liquefied gas conveying conduit; wherein, the oxygen tank and the liquefied gas tank are respectively connected with the straightening unit group through an oxygen delivery conduit and a liquefied gas delivery conduit.

Through adopting above-mentioned technical scheme, the existence of preheating unit is designed, can be in real time treat the rail of alignment rail heat and let the alignment unit group carry out the alignment operation, design in advance, it is humanized, have efficient characteristics equally.

The present invention in a preferred example may be further configured to: the three-way pipe is connected with the middle of the oxygen conveying pipe of the oxygen tank, and the three-way pipe is connected with the middle of the liquefied gas conveying pipe of the liquefied gas tank.

By adopting the technical scheme, the number of the straightening unit groups is two, and then the oxygen conveying conduit and the liquefied gas conveying conduit are divided into two paths through the three-way pipe to be matched with the two straightening unit groups, so that fuel supply of the straightening unit groups is provided.

The present invention in a preferred example may be further configured to: the straightening unit group comprises two straightening units which are arranged at two end parts of the carrier plate and are symmetrical with each other; the straightening unit comprises a large pressure-bearing frame, a small pressure-bearing frame fixed inside the large pressure-bearing frame, a hydraulic oil pump which is arranged on the inner surface of the rear side of the large pressure-bearing frame and fixedly installed through bolts, a hydraulic cylinder which is arranged on the inner surface of the rear side of the small pressure-bearing frame and fixedly connected with the inner surface of the rear side of the small pressure-bearing frame, and clamping mechanisms arranged at two corners of the front side of the large pressure-bearing frame, wherein a lifting transfer fixing frame is arranged between the large pressure-bearing frame and the small pressure-bearing frame, and the lifting transfer fixing frame is fixedly arranged between the large pressure-bearing frame and the.

The present invention in a preferred example may be further configured to: the clamping mechanism comprises a substrate and clamping pieces, the substrate is a component with a cuboid structure and is a component made of carbon steel, and the two clamping pieces with the same structure and size are symmetrically arranged on the substrate through bolts and the clamping pieces.

Through adopting above-mentioned technical scheme, alignment unit group treats alignment rail through the fastener that sets up at fixture and carries out the centre gripping, wherein, fastener quantity is more than two, can be balanced around like this, lets alignment unit group can be steady fix on treating alignment rail.

The present invention in a preferred example may be further configured to: the base plate is provided with the fixed frame of "L" font, the inside baking gun that runs through of fixed frame's front end is installed, the fuel supply of baking gun is provided through oxygen delivery conduit, liquefied gas delivery conduit.

By adopting the technical scheme, the L-shaped fixed frame can be effectively fixed with the base plate, and then the baking gun arranged on the L-shaped fixed frame is used for baking the rail to be straightened so as to straighten the rail.

The present invention in a preferred example may be further configured to: the rolling wheels are arranged on the base plate in a matching mode through rotating shafts; the straightening unit group moves on the rail to be straightened through the walking rolling wheels.

By adopting the technical scheme, the straightening unit group can move on the rail to be straightened when the rolling wheels move, and the area of the rail to be straightened is achieved by fine adjustment movement of the rolling wheels to straighten.

The present invention in a preferred example may be further configured to: the lower surface of support plate installs rotatable wheel, and the quantity of wheel is provided with four altogether, and four wheels are the rectangle distribution at the lower surface of support plate, and the wheel shape is identical with the top shape of waiting to straighten the rail.

The present invention in a preferred example may be further configured to: the hydraulic oil pump is internally provided with hydraulic oil, and the hydraulic oil pump, the hydraulic cylinder and a hydraulic oil pipe connected between the hydraulic oil pump and the hydraulic cylinder jointly form a hydraulic oil flow-through loop.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the design of a set of alignment unit group can carry out the alignment operation to a set of rail of treating the alignment simultaneously for the alignment operation is more perfect, and the function is also more powerful.

2. The mechanical arm unit is additionally arranged on the support plate, and the straightening unit group is hoisted and moved onto the rail to be straightened through the mechanical arm unit, so that the manual work is saved, the working efficiency is improved, and meanwhile, the injury of personnel caused during straightening operation is prevented.

3. A set of rolling wheels are added on the straightening unit group, so that the straightening unit group can be finely adjusted to a position where a rail to be straightened is straightened, and the straightening unit group is more exquisite, more flexible and has good practicability.

Drawings

Fig. 1 is a schematic perspective view of an automatic straightening device for a railway rail according to the present invention.

Fig. 2 is a schematic top view of an automatic alignment apparatus for a rail according to the present invention.

Fig. 3 is a schematic top view of a straightening unit group of an automatic straightening device for rails according to the present invention.

Fig. 4 is a schematic perspective view of a straightening unit group of an automatic straightening device for a railway rail according to the present invention.

Fig. 5 is a schematic block diagram of an image processing device of an automatic rail straightening device according to the present invention.

Reference numerals:

1. the straightening device comprises rails to be straightened, 2, a carrier plate, 22, wheels, 3, a straightening unit group, 31 and a large pressure-bearing frame; 32. a small pressure-bearing frame; 33. a hydraulic oil pump; 34. a hydraulic cylinder; 35. clamping mechanism, 351, base plate, 355, clamping piece, 36, lifting transfer fixing frame, 37, rolling wheel, 4, camera, 5, manipulator unit, 51, electromagnetic clamp, 6, image processing device, 61, rail area identification module, 62, region of interest extraction module, 63, judgment module, 64, image processing module, 7, preheating unit, 71, oxygen tank, 72, liquefied gas tank, 73, comb tube device, 74, oxygen conveying conduit, 75, liquefied gas conveying conduit, 76, three-way pipe, 77, L-shaped fixing frame, 78 and baking gun.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, 2 and 5, the automatic straightening device for rails according to the present invention includes a carrier plate 2, wherein the carrier plate 2 is rectangular as a whole, a set of wheels 22 are respectively disposed on the left and right sides of the lower end of the carrier plate 2, and the shape of the wheels 22 is matched with the shape of the top of the rail 1 to be straightened, such that the carrier plate 2 can move on the rail 1 to be straightened through the two sets of wheels 22; a group of cameras 4 for detecting the actual state of the rail and an image processing device 6 for acquiring data and processing the data are arranged at the lower end of the support plate 2 in the direction from the rail, the cameras 4 can shoot the rail area in front of the period, and the rail area identification module 61 is used for determining the rail area in the current frame picture; a region-of-interest extracting module 62, configured to extract a region of interest of a "]" section region in the current frame picture, where the region of interest includes the rail region; the judging module 63 is configured to judge that the ratio of the range of the region of interest to the current frame picture is greater than a first preset value; the image processing module 64 is configured to process the region of interest with the adjusted resolution according to a preset deep learning model; transmitting the result to the manipulator unit 5, and controlling the mutually symmetrical straightening unit groups 3 by the manipulator unit 5 to straighten the rail 1 to be straightened; by adopting the technical scheme, the image processing device 6 with the camera for identifying the rail 1 to be straightened is arranged on the support plate, when the rail to be straightened is found, a group of mutually symmetrical straightening unit groups 3 on the support plate 2 can be controlled, and the straightening unit groups 3 are attracted and controlled by the mechanical arm unit 5 according to actual needs to straighten one rail or two rails, so that automatic operation is realized.

Referring to fig. 1 and 2, according to the automatic straightening device for a rail of the present invention, two sides of a carrier plate 2 are respectively provided with a mutually symmetrical straightening unit group 3, a manipulator unit 5 for transferring the position of the straightening unit group 3 is arranged at a middle rear position of the carrier plate, the manipulator unit 5 is fixedly arranged between the two straightening unit groups 3 through a mounting fixing seat (not shown), and an electromagnetic clamp 51 is arranged at a driving end of the manipulator unit 5 to attract one of the two straightening unit groups 3 and transfer the attracted one to a rail 1 to be straightened.

In this embodiment, the straightening unit group 3 is provided with a lifting transfer fixing frame 36 which is fixedly attached to the electromagnetic clamp 51, and the lifting transfer fixing frame is fixedly arranged on the upper portion of the straightening unit group 3 through a plurality of bolts or welded on the upper portion of the straightening unit group 3 by using a welding process; the upper part of the lifting and transferring fixing frame 36 is provided with a fixing block 361, and the electromagnetic clamp 51 can be sufficiently attracted and fixed with the lifting and transferring fixing frame 36 through the large-area design of the fixing block 361, so that the stability is improved, and meanwhile, the safety consideration is also provided.

Referring to fig. 1 and 2, according to the automatic straightening device for the rails of the present invention, a preheating unit 7 is further disposed on the carrier plate 2; the preheating unit 7 comprises an oxygen tank 71 and a liquefied gas tank 72 which are movably arranged on the carrier plate 2, a comb tube device 73, an oxygen conveying conduit 74 and a liquefied gas conveying conduit 75; wherein, the oxygen tank 71 and the liquefied gas tank 72 are respectively connected with the straightening unit group 3 through an oxygen conveying conduit 74 and a liquefied gas conveying conduit 75; the three-way pipe 76 is connected with the oxygen conveying pipe 74 of the oxygen tank 71, and the three-way pipe 76 is connected with the liquefied gas conveying pipe 75 of the liquefied gas tank 72; the base plate 351 is provided with an L-shaped fixing frame 77, a baking gun 78 is installed in the front end of the fixing frame 77 in a penetrating manner, and fuel supply of the baking gun 78 is provided through an oxygen gas delivery conduit 74 and a liquefied gas delivery conduit 75.

In this embodiment, the L-shaped fixing frame 77 can be effectively fixed with the substrate 351, and then the baking gun 78 disposed on the L-shaped fixing frame 77 is baked to straighten the rail; wherein, the baking gun 78 performs the baking operation after igniting the mixed gas transmitted from the oxygen transmission conduit 74 and the liquefied gas transmission conduit 75.

In this embodiment, the oxygen tank 71 and the liquefied gas tank 72 are directly connected to an oxygen delivery conduit 74 and a liquefied gas delivery conduit 75, respectively, and since the support plate 2 is provided with two sets of straightening unit sets 3, the oxygen delivery conduit 74 and the liquefied gas delivery conduit 75 need to be divided into two to meet the operation of the two sets of straightening unit sets 3, two three-way pipes 76 are added to the comb device 73, the oxygen delivery conduit 74 and the liquefied gas delivery conduit 75 are divided into two through the three-way pipe 76, and at this time, the two sets of straightening unit sets 3 both obtain the oxygen and the liquefied gas delivered through the oxygen delivery conduit 74 and the liquefied gas delivery conduit 75 to enable the baking gun 78 to perform the baking operation; the existence of the preheating unit is designed, so that the rail to be straightened of the rail 1 can be heated in real time, and the straightening unit group can be used for straightening operation, and the preheating unit is designed in advance, humanized and high in efficiency.

Referring to fig. 3 and 4, the support plate 2 of the automatic straightening device for the rail of the present invention is provided with two sets of straightening unit groups 3, wherein each straightening unit comprises a large pressure-bearing frame 31, a small pressure-bearing frame 32 fixed inside the large pressure-bearing frame 31, a hydraulic oil pump 33 arranged on the inner surface of the rear side of the large pressure-bearing frame 31 and fixedly mounted by bolts, a hydraulic cylinder 34 fixedly connected to the inner surface of the rear side of the small pressure-bearing frame 32, and clamping mechanisms 35 arranged at two corners of the front side of the large pressure-bearing frame 31, a lifting transfer fixing frame 36 is arranged between the large pressure-bearing frame 31 and the small pressure-bearing frame 32, and the lifting transfer fixing frame 36 is fixedly arranged between the large pressure-bearing frame 31 and the small pressure-bearing frame 32 by a welding process; the clamping mechanism 35 comprises a substrate 351 and a clamping piece 355, wherein the substrate 351 is a component with a rectangular parallelepiped structure and is a component made of carbon steel, and two clamping pieces 355 with the same structure and size are symmetrically arranged on the substrate 351 through bolts and the clamping pieces 355; the alignment unit set 3 clamps the rail to be aligned through the engaging members 355 disposed on the clamping mechanism 35, wherein the number of the engaging members 355 is two or more, so that the rail to be aligned can be balanced in front and back directions, and the alignment unit set 3 can be stably fixed on the rail to be aligned.

In this embodiment, the base plate 351 is provided with an L-shaped fixing frame 77, a baking gun 78 is installed in the front end of the fixing frame 77, and fuel supply of the baking gun 78 is provided through an oxygen gas delivery conduit 74 and a liquefied gas delivery conduit 75; the L-shaped fixing frame 77 can be effectively fixed with the base plate 351, and then the baking gun 78 provided on the L-shaped fixing frame 77 is baked to straighten the rail to be straightened.

In this embodiment, the device further includes a plurality of rolling wheels 37, and the rolling wheels 37 are disposed on the substrate 351 through a rotating shaft; the straightening unit group 3 moves on the rail 1 to be straightened through a walking rolling wheel 37; the alignment unit group 3 can move on the rail 1 to be aligned by the movement of the rolling wheel 37, and the rail 1 to be aligned can be aligned by the fine adjustment movement of the rolling wheel 37.

In this embodiment, the hydraulic oil pump 33 is provided with hydraulic oil therein, and the hydraulic oil pump 33, the hydraulic cylinder 34 and the hydraulic oil pipe connected between the hydraulic oil pump 33 and the hydraulic cylinder 34 together form a hydraulic oil flow circuit.

The working principle and the using process of the invention are as follows: when the straightening treatment is required to be carried out on the bent positions of the local rail, the whole equipment can be placed on the two rails, so that the whole equipment can move on the rails, the bent positions of the rails are straightened, when the bending amplitude of the rails is large, the distance between the two clamping pieces 355 can be adjusted according to the bending distance, when the adjustment is carried out, the round-head hexagon socket head bolts on the clamping pieces 355 are required to be unscrewed from the threaded holes, the distance between the two clamping pieces 355 can be adjusted, after the distance adjustment is finished, the whole equipment can be placed on the rail 1 to be straightened through the clamping connection between the opening parts of the two clamping pieces 355 and the rail 1 to be straightened, after the placement is finished, the fire spraying end of the baking gun 78 just corresponds to the position of the part of the rail 1 to be straightened, at the moment, the safety valves on the air outlet ends of the liquefied gas cylinder 72 and the oxygen cylinder 71 are opened, combustible gas is conveyed into the baking gun 78 through the gas conveying pipe, at the moment, the baking gun 78 is ignited, flame can be emitted from the flame-spraying end of the baking gun 78, the position of the part to be straightened of the rail 1 is baked, the temperature of the part to be straightened of the rail 1 is raised, when the part to be straightened of the rail 1 is burnt, a worker can start the hydraulic oil pump 33, the hydraulic oil pump 33 conveys the hydraulic oil inside into the hydraulic cylinder 34 through the hydraulic oil pipe, the hydraulic cylinder 34 is enabled to extend, after the extension, the extension end of the hydraulic cylinder 34 is abutted against the position of the part to be straightened of the rail 1, pressure is continuously applied, the bent rail is enabled to realize gradual correction, after the straightening treatment is completed, the safety valve is closed, the baking gun 78 stops working, after the gas conveying pipe is combed through the combing device 74, the straightening unit 3 is placed on the support plate 2 again, and repairing the next section of bent rail.

It should be noted that the hydraulic oil pump 33, the hydraulic cylinder 34 and the baking gun 78 are all in the prior art, and the structure and the operation principle thereof are not described in detail herein.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the design of a group of alignment unit group can carry out the alignment operation to a set of rail of treating the alignment simultaneously for the alignment operation is more perfect, and the function is also more powerful.

2. The mechanical arm unit is additionally arranged on the support plate, and the straightening unit group is hoisted and moved onto the rail to be straightened through the mechanical arm unit, so that the manual work is saved, the working efficiency is improved, and meanwhile, the injury of personnel caused during straightening operation is prevented.

3. A set of rolling wheels are added on the straightening unit group, so that the straightening unit group can be finely adjusted to a position where a rail to be straightened is straightened, and the straightening unit group is more exquisite, more flexible and has good practicability.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.