Production device of overhead contact guide rail for electrified road

Abstract

The invention discloses a production device of an overhead contact guide rail for an electrified road, which comprises a rack, and a polishing device, a forming device, an extrusion forming device, a sizing device, a straightening device, a vertical roll straightening device and a flat roll straightening device are sequentially arranged on the rack; the grinding device is used for grinding a wear-resistant profile, the forming device is used for processing the wear-resistant profile into a required shape, the extrusion forming device is used for performing combined extrusion forming on a conductive profile and the wear-resistant profile to form a guide rail, and the sizing device is used for further fixing the size of the guide rail. The straightening device, the vertical roll straightening device and the flat roll straightening device are all used for straightening the guide rail. According to the production device of the overhead contact guide rail for the electrified highway, polishing, forming, extrusion forming, sizing and three-dimensional straightening are integrated on the same rack, a continuous production line is formed, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of overhead contact rail technology, and more specifically to a production apparatus for overhead contact rails used in electrified highways. Background Technology

[0002] Overhead contact rails for electrified highways require the composite bonding of aluminum or copper cores to wear-resistant profiles to form an integrated conductive and corrosion-resistant rail. Existing production lines typically distribute processes such as grinding, forming, extrusion, sizing, and straightening in a dispersed manner, resulting in the following drawbacks: 1. The connection between equipment requires multiple hoisting and transportation operations, resulting in excessive manual intervention and low efficiency; 2. Mismatch in speed and tension between processes leads to large fluctuations in guide rail dimensions and poor straightness; 3. Lack of online speed measurement and closed-loop control, unable to adjust in real time, resulting in a high scrap rate; 4. The straightening mechanism is singular and can only achieve planar straightening, making it difficult to correct vertical and horizontal curvature simultaneously.

[0003] Based on the above, the present invention proposes a production device for overhead contact rails for electrified highways, which can effectively solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a production apparatus for overhead contact rails used in electrified highways. This apparatus integrates grinding, forming, extrusion forming, sizing, and three-dimensional straightening processes onto a single frame, forming a continuous production line and significantly improving production efficiency.

[0005] This invention is achieved through the following technical solution: A production apparatus for overhead contact rails for electrified highways includes a frame, on which a grinding device, a forming device, an extrusion forming device, a sizing device, a straightening device, a vertical roller straightening device, and a horizontal roller straightening device are sequentially arranged. The grinding device is used to grind the wear-resistant profile, the forming device is used to process the wear-resistant profile into the required shape, the extrusion forming device is used to combine the conductive profile and the wear-resistant profile and extrude them into a guide rail, the sizing device is used to further fix the size of the guide rail, and the straightening device, vertical roller straightening device and horizontal roller straightening device are all used to straighten the guide rail.

[0006] The purpose of this invention is to provide a production apparatus for overhead contact rails used in electrified highways. This apparatus integrates grinding, forming, extrusion forming, sizing, and three-dimensional straightening processes onto a single frame, forming a continuous production line and significantly improving production efficiency.

[0007] Preferably, the polishing device includes a polishing motor, a first forming mechanism, and a polishing mechanism. The polishing motor is used to provide rotational driving force to the first forming mechanism. Polishing mechanisms are provided at both the front and rear of the first forming mechanism. The polishing mechanism includes a polishing connecting seat, which is detachably connected to the first forming mechanism. A polishing support shaft is fixed on the polishing connecting seat, and a polishing wheel is rotatably connected to the polishing support shaft.

[0008] Preferably, the molding apparatus includes a molding drive mechanism and a plurality of second molding mechanisms, wherein the molding drive mechanism is used to provide rotational driving force to the second molding mechanisms.

[0009] Preferably, the extrusion molding device includes a left support base and a right support base, with an upper connecting rod and a lower connecting rod connected between the left support base and the right support base. An extrusion shaft is rotatably connected to both sides of the upper connecting rod and the lower connecting rod. A molding block is provided on the extrusion shaft, and a molding groove is formed between the two molding blocks.

[0010] Preferably, the sizing device includes a sizing drive mechanism, a plurality of third forming mechanisms and a sizing mechanism, wherein the sizing drive mechanism is used to provide rotational driving force to the third forming mechanisms, and the sizing mechanism is disposed within the third forming mechanisms.

[0011] Preferably, the sizing mechanism includes a sizing base, and sizing rotating seats are provided on both sides of the top of the sizing base. Sizing wheels are rotatably connected inside the sizing rotating seats, and a profile sizing groove is formed between the two sizing wheels.

[0012] Preferably, a speed measuring wheel for measuring the speed of the profile is provided between the two third forming mechanisms.

[0013] Preferably, the vertical roller straightening device includes a straightening base, on which a first vertical straightening wheel, a second vertical straightening wheel, and a third vertical straightening wheel are arranged in sequence, and a symmetrically arranged set of vertical straightening wheels is provided on the right side of the third vertical straightening wheel.

[0014] Preferably, the flat roller straightening device includes a straightening side seat, wherein the straightening side seat is provided with a first horizontal straightening roller, a second horizontal straightening roller, a third horizontal straightening roller and a fourth horizontal straightening roller that are interleaved with each other.

[0015] Preferably, the first forming mechanism, the second forming mechanism, and the third forming mechanism each include two forming support seats, and an upper conveying roller and a lower conveying roller are rotatably connected to each of the two forming support seats.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: The production device for overhead contact rails for electrified highways of the present invention integrates "grinding-forming-extrusion forming-sizing-three-dimensional straightening" into the same frame to form a continuous production line, which greatly improves production efficiency.

[0017] 1. The guide rail is formed in one piece, eliminating the need for transfer and greatly increasing production capacity; 2. The online speed measuring wheel provides real-time feedback of speed signals, and the controller synchronously adjusts each drive mechanism; 3. The combination of staggered vertical and horizontal rollers for straightening meets the stringent straightness requirements of high-speed overhead contact guide rails; 4. The modular molding mechanism shares the same power source, has a compact structure, reduces the floor space, and is easy to maintain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a top view of the grinding device described in this invention. Figure 3 This is a top view of the molding device described in this invention. Figure 4 This is a top view of the extrusion molding apparatus and sizing device described in this invention. Figure 5 This is a top view of the straightening device, vertical roller straightening device, and horizontal roller straightening device described in this invention. Figure 6 This is a schematic diagram of the grinding device described in this invention; Figure 7 This is a schematic diagram of the vertical roller straightening device of the present invention; Figure 8 This is a schematic diagram of the structure of the flat roller straightening device of the present invention; Figure 9 This is a schematic diagram of the extrusion molding apparatus of the present invention; Figure 10 This is a schematic diagram of the sizing device described in this invention; Figure 11 This is a schematic diagram of the structure of the first molding mechanism, the second molding mechanism, and the third molding mechanism of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of the present invention, preferred embodiments of the present invention are described below in conjunction with specific examples. However, it should be understood that the accompanying drawings are for illustrative purposes only and should not be construed as limiting the present patent. For better illustration of this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable that some well-known structures and their descriptions may be omitted in the drawings for those skilled in the art. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

[0020] Unless otherwise specified, the technical features (components / elements) of the straightening device, grinding motor, forming drive mechanism, and sizing drive mechanism described in this invention are obtained from conventional commercial channels or manufactured by conventional methods. Their specific structures, working principles, and possible control methods and spatial arrangements can adopt conventional choices in the field and should not be regarded as the innovation of this invention. This is understandable to those skilled in the art, and this patent will not elaborate further.

[0021] Example 1: like Figures 1 to 11 As shown, the present invention provides a production device for overhead contact rails for electrified highways, including a frame 1, on which a grinding device 2, a forming device 3, an extrusion forming device 4, a sizing device 5, a straightening device 6, a vertical roller straightening device 7, and a horizontal roller straightening device 8 are sequentially arranged. The grinding device 2 is used to grind the wear-resistant profile, the forming device 3 is used to process the wear-resistant profile into the required shape, the extrusion forming device 4 is used to combine the conductive profile and the wear-resistant profile and extrude them into a guide rail, the sizing device 5 is used to further fix the size of the guide rail, and the straightening device, the vertical roller straightening device 7 and the horizontal roller straightening device 8 are all used to straighten the guide rail.

[0022] Example 2: like Figures 1 to 11 As shown, the present invention provides a production device for overhead contact rails for electrified highways, including a frame 1, on which a grinding device 2, a forming device 3, an extrusion forming device 4, a sizing device 5, a straightening device 6, a vertical roller straightening device 7, and a horizontal roller straightening device 8 are sequentially arranged. The grinding device 2 is used to grind the wear-resistant profile, the forming device 3 is used to process the wear-resistant profile into the required shape, the extrusion forming device 4 is used to combine the conductive profile and the wear-resistant profile and extrude them into a guide rail, the sizing device 5 is used to further fix the size of the guide rail, and the straightening device 6, the vertical roller straightening device 7, and the horizontal roller straightening device 8 are all used to straighten the guide rail.

[0023] The "seven-station integrated" layout enables wear-resistant profiles to become qualified guide rails after grinding, forming, extrusion, sizing and three-dimensional straightening. The entire process is completed on the same frame 1, avoiding multiple hoisting, shortening the process and improving the consistency of finished products.

[0024] The conductive profile can be made of aluminum, copper, or other alloys such as copper-aluminum alloys, while the wear-resistant profile can be made of stainless steel or other alloys such as steel-copper alloys.

[0025] The polishing device 2 includes a polishing motor 21, a first forming mechanism 22, and a polishing mechanism 23. The polishing motor 21 provides rotational driving force to the first forming mechanism 22. The first forming mechanism 22 is provided with polishing mechanisms 23 at both ends. The polishing mechanism 23 includes a polishing connecting seat 231, which is detachably connected to the first forming mechanism 22. A polishing support shaft 232 is fixed on the polishing connecting seat 231, and a polishing wheel 233 is rotatably connected to the polishing support shaft 232.

[0026] The grinding device has symmetrically arranged grinding wheels 233 that can be quickly replaced on the front and rear sides, and shares the conveying power of the first forming mechanism 22 to achieve grinding while conveying, which not only removes oxide scale evenly, but also keeps in sync with the subsequent forming speed to prevent slippage or accumulation.

[0027] Furthermore, in another embodiment, the molding device 3 includes a molding drive mechanism 31 and a plurality of second molding mechanisms 32, wherein the molding drive mechanism 31 is used to provide rotational driving force to the second molding mechanisms 32.

[0028] The forming drive mechanism 31 drives multiple second forming mechanisms 32 at one time, and the speed of each station is consistent, which reduces the speed difference and stretching deformation caused by traditional independent drive, ensures the stability of the cross-sectional dimensions of the wear-resistant profile, and provides a uniform substrate for the subsequent extrusion of conductive profile layers.

[0029] Furthermore, in another embodiment, the extrusion molding device 4 includes a left support base 41 and a right support base 42. An upper connecting rod 43 and a lower connecting rod 44 are connected between the left support base 41 and the right support base 42. An extrusion shaft 45 is rotatably connected to both sides of the upper connecting rod 43 and the lower connecting rod 44. A molding block 46 is provided on the extrusion shaft 45, and a molding groove is formed between the two molding blocks 46.

[0030] The left and right support seats 42 and the upper and lower connecting rods 44 form a closed frame. The extrusion shaft 45 rotates synchronously to make the forming block 46 symmetrically extrude the two materials. The forming groove forms the guide rail section in one step, avoiding defects in the joint surface caused by step extrusion.

[0031] Furthermore, in another embodiment, the sizing device 5 includes a sizing drive mechanism 51, a plurality of third forming mechanisms 52 and a sizing mechanism 53, wherein the sizing drive mechanism 51 is used to provide rotational driving force to the third forming mechanisms 52, and the sizing mechanism 53 is disposed within the third forming mechanisms 52.

[0032] The sizing drive mechanism 51 drives multiple third forming mechanisms 52 to achieve online precision finishing of the guide rail and ensure uniform outer diameter; at the same time, the forming roller is used to convey power, simplifying the transmission system and reducing energy consumption.

[0033] Furthermore, in another embodiment, the sizing mechanism 53 includes a sizing base 531, and sizing rotating seats 532 are provided on both sides of the top of the sizing base 531. Sizing wheels 533 are rotatably connected inside the sizing rotating seats 532, and a profile sizing groove is formed between the two sizing wheels 533.

[0034] Two rotatable sizing wheels 533 on the sizing base 531 form a sizing groove, which rotates at the same speed as the third forming mechanism 52, and is conveyed and finished at the same time to prevent scratches or elliptical deformation during the sizing process and improve surface quality.

[0035] Furthermore, in another embodiment, a speed measuring wheel 54 for measuring the speed of the profile is provided between the two third forming mechanisms 52.

[0036] A speed measuring wheel 54 is embedded between the two sets of third forming mechanisms 52 to collect the linear velocity in real time and feed it back to the controller, realizing a closed loop of full linear velocity, automatically coordinating the speed of each station of grinding, forming and extrusion, reducing tension fluctuations and improving dimensional stability.

[0037] Furthermore, in another embodiment, the vertical roller straightening device 7 includes a straightening base 71, on which a first vertical straightening wheel 72, a second vertical straightening wheel 73, and a third vertical straightening wheel 74 are arranged in sequence, and a symmetrically arranged vertical straightening wheel group 75 is provided on the right side of the third vertical straightening wheel 74.

[0038] The vertical roller straightening device 7 uses three staggered vertical straightening wheels plus symmetrical wheel sets to form multi-point bending correction, effectively eliminating vertical bending of the guide rail. It connects with the downstream flat roller straightening device 8 to achieve three-dimensional straightening integration.

[0039] Furthermore, in another embodiment, the flat roller straightening device 8 includes a straightening side seat 81, which is provided with a first horizontal straightening wheel 82, a second horizontal straightening wheel 83, a third horizontal straightening wheel 84 and a fourth horizontal straightening wheel 85 that are interleaved with each other.

[0040] The flat roller straightening device 8 uses four horizontal straightening wheels arranged in an alternating pattern to perform fine straightening of the guide rail in the horizontal direction. In conjunction with the vertical roller straightening device 7, it completes the spatial straightness correction in one go, meeting the high straightness requirements for long-distance overhead lines.

[0041] Furthermore, in another embodiment, the first molding mechanism 22, the second molding mechanism 32 and the third molding mechanism 52 each include two molding support seats 221, and an upper conveying roller 222 and a lower conveying roller 223 are rotatably connected to each of the two molding support seats 221.

[0042] The first, second, and third forming mechanisms adopt a unified structure of "double support base + upper and lower conveyor rollers" to achieve synchronous conveying of the three stages of grinding, forming, and sizing, simplifying the transmission chain and reducing equipment costs and failure rate.

[0043] Based on the description and drawings of this invention, those skilled in the art can easily manufacture or use the production apparatus for the overhead contact rail for electrified highways of this invention, and can achieve the positive effects described in this invention.

[0044] Unless otherwise specified, in this invention, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this invention are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0045] Unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A production apparatus for overhead contact rails for electrified highways, characterized in that: The machine includes a frame, on which a grinding device, a forming device, an extrusion forming device, a sizing device, a straightening device, a vertical roller straightening device, and a horizontal roller straightening device are sequentially arranged. The grinding device is used to grind the wear-resistant profile, the forming device is used to process the wear-resistant profile into the required shape, the extrusion forming device is used to combine the conductive profile and the wear-resistant profile and extrude them into a guide rail, the sizing device is used to further fix the size of the guide rail, and the straightening device, vertical roller straightening device and horizontal roller straightening device are all used to straighten the guide rail.

2. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The polishing device includes a polishing motor, a first forming mechanism, and a polishing mechanism. The polishing motor provides rotational driving force to the first forming mechanism. Polishing mechanisms are provided at both the front and rear of the first forming mechanism. Each polishing mechanism includes a polishing connecting seat, which is detachably connected to the first forming mechanism. A polishing support shaft is fixed on the polishing connecting seat, and a polishing wheel is rotatably connected to the polishing support shaft.

3. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The molding apparatus includes a molding drive mechanism and a plurality of second molding mechanisms, wherein the molding drive mechanism is used to provide rotational driving force to the second molding mechanisms.

4. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The extrusion molding device includes a left support base and a right support base. An upper connecting rod and a lower connecting rod are connected between the left support base and the right support base. An extrusion shaft is rotatably connected to both sides of the upper connecting rod and the lower connecting rod. A molding block is provided on the extrusion shaft, and a molding groove is formed between the two molding blocks.

5. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The sizing device includes a sizing drive mechanism, multiple third forming mechanisms, and a sizing mechanism. The sizing drive mechanism is used to provide rotational driving force to the third forming mechanisms, and the sizing mechanism is located inside the third forming mechanisms.

6. The production apparatus for overhead contact rails for electrified highways according to claim 5, characterized in that: The sizing mechanism includes a sizing base, and sizing rotating seats are provided on both sides of the top of the sizing base. Sizing wheels are rotatably connected inside the sizing rotating seats, and a profile sizing groove is formed between the two sizing wheels.

7. The production apparatus for overhead contact rails for electrified highways according to claim 5, characterized in that: A speed measuring wheel for measuring the speed of the profile is provided between the two third forming mechanisms.

8. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The vertical roller straightening device includes a straightening base, on which a first vertical straightening wheel, a second vertical straightening wheel, and a third vertical straightening wheel are arranged in sequence, and a symmetrically arranged set of vertical straightening wheels is provided on the right side of the third vertical straightening wheel.

9. The production apparatus for overhead contact rails for electrified highways according to claim 1, characterized in that: The flat roller straightening device includes a straightening side seat, and the straightening side seat is provided with a first horizontal straightening wheel, a second horizontal straightening wheel, a third horizontal straightening wheel and a fourth horizontal straightening wheel that are interleaved with each other.

10. The production apparatus for overhead contact rails for electrified highways according to claim 2, 3 or 5, characterized in that: The first forming mechanism, the second forming mechanism and the third forming mechanism each include two forming support seats, and an upper conveying roller and a lower conveying roller are rotatably connected to each of the two forming support seats.

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