Intelligent contact line automatic milling and polishing equipment

Abstract

An intelligent contact line automatic milling, grinding and polishing device comprises a mounting frame and a plurality of balance wheel assemblies, positioning wheel assemblies, milling and grinding assemblies, polishing wheel assemblies and walking wheel assemblies which are mounted on the mounting frame, each milling and grinding assembly comprises a middle mounting plate and a milling and grinding device arranged above the middle mounting plate, a guide rail is arranged on the top face of a bottom plate, and the top face of the bottom plate is provided with a guide rail. The extending direction of the guide rail is perpendicular to the walking direction of the equipment, a guide groove is formed in the bottom of the middle mounting plate, and the guide groove is clamped on the guide rail and can move along the guide rail; the milling and grinding device comprises a milling and grinding base and a cutter arranged on the milling and grinding base, the cutter is arranged in a disc shape, and the cross section of the outer surface of the cutter is arranged in a concave arc shape. According to the repairing equipment, sharp corners and burrs on the two sides of an abraded contact net line can be machined into arc-shaped transition or filleted corners, fine adjustment and correction can be conducted on equipment inclining in the walking process, and the repairing quality is greatly improved; the practicability is high, and the popularization significance is high.

Description

Technical Field

[0001] The utility model relates to a repair device for a rail transit contact wire, in particular to an intelligent automatic milling, grinding and polishing device for a contact wire. Background Technique

[0002] Most subway tunnel sections in China adopt rigid catenary power supply. The rigid catenary mainly consists of structures such as overhead rigid busbars, contact wires, support and positioning devices, insulating components, and overhead ground wires. Due to its simple structure, no tension on the contact wire, no worry about wire breakage, and convenient maintenance, it has been widely used in subway tunnel sections. During the power-taking process of mutual sliding friction between the contact wire and the carbon skateboard, mechanical friction between the contact wire and the carbon skateboard will cause defects such as burrs, sharp corners, and flash on the friction surface and the arc of the contact wire. In terms of electrical performance, defects such as burrs, sharp corners, and flash may lead to an increase in partial discharge, affecting the stability and reliability of current transmission, and may even cause electrical failures. In terms of mechanical properties, defects such as burrs, sharp corners, and flash are likely to cause scratching and wear when the pantograph carbon skateboard passes through, which may damage the carbon skateboard and may further exacerbate the damage to the contact wire, affecting the service life of the catenary. In addition, burrs may also affect the appearance and cleanliness of the contact wire to a certain extent.

[0003] Currently, to solve the defects such as burrs, sharp corners, and flash on the contact wire, appropriate milling, grinding, trimming and other treatment measures are usually taken. For example, Chinese Patent CN202211088129.3 discloses a rigid contact wire milling machine, which uses a first milling cutter to trim the contact wire. However, this milling device can only mill the bottom surface and cannot process the defects at the side and corner positions, and the repair effect is not good. Content of the Utility Model

[0004] Based on this, it is necessary to provide an intelligent automatic milling, grinding and polishing device for a contact wire in view of the deficiencies in the prior art.

[0005] An intelligent automatic milling, grinding and polishing equipment for contact wires, which comprises a mounting frame and a number of groups of balance wheel assemblies, positioning wheel assemblies, milling assemblies, polishing wheel assemblies and running wheel assemblies mounted on the mounting frame. The mounting frame includes two side plates and a bottom plate disposed between the two side plates. The balance wheel assemblies are mounted on the top surfaces of the side plates. The positioning wheel assemblies, milling assemblies, polishing wheel assemblies and running wheel assemblies are all mounted on the bottom plate between the two side plates. And the running wheel assemblies are arranged at the foremost side, the polishing wheel assemblies are arranged at the rear side, and the positioning wheel assemblies and milling assemblies are arranged between the running wheel assemblies and the polishing wheel assemblies. The milling assembly includes a middle mounting plate and a milling device disposed above the middle mounting plate. A guide rail is provided on the top surface of the bottom plate, and the extending direction of the guide rail is perpendicular to the running direction of the equipment. A guide groove is provided at the bottom of the middle mounting plate, and the guide groove is engaged with the guide rail and can move along the guide rail. The milling device includes a milling base and a cutter mounted on the milling base. The cutter is arranged in a disc shape, and the cross section of its outer surface is arranged in a concave arc shape.

[0006] Further, the milling assembly further includes two limiting wheel devices, and the limiting wheel devices are arranged on the middle mounting plate and located on the front and rear sides of the milling device.

[0007] Further, the limiting wheel device includes a limiting base, a limiting wheel disposed in the limiting base and a guide post assembly disposed at the bottom of the limiting base. The guide post assembly is mounted on the middle mounting plate.

[0008] Further, the guide post assembly includes a guide post and a spring sleeved outside the guide post. The bottom end of the guide post is fixedly arranged on the middle mounting plate, and the limiting base is movably mounted on the guide post above the guide post spring.

[0009] Further, the milling assembly further includes an adjusting device. The top end of the adjusting device extends to the middle mounting plate, and the bottom end extends out of the bottom plate. A rotary handle for controlling the lifting of the middle mounting plate is arranged at the bottom end of the adjusting device.

[0010] Further, the running wheel assembly includes a mounting seat, a mounting rod disposed at the bottom surface of the mounting seat, a running wheel mounted on the mounting seat, a quick-release handle movably arranged at the bottom end of the mounting rod and a driving device. The quick-release handle is located below the bottom plate.

[0011] Further, the quick-release handle is of an eccentric structure. The mounting end of the quick-release handle is provided with a mounting hole and two opposite side surfaces, and the distances from the two side surfaces to the mounting hole are different.

[0012] Further, the polishing wheel assembly includes a positioning frame, a driving motor, a polishing wheel, and a tension spring mounted on the positioning frame. The positioning frame includes a positioning seat and an upper positioning rod. The upper positioning rod is mounted on the side plate, and the positioning seat is pivotally connected to the bottom plate. A limiting rod is provided on the positioning seat inside the polishing wheel. One end of the tension spring is mounted on the upper positioning rod, and the other end is mounted on the limiting rod.

[0013] Further, a plurality of arranged assembly holes are provided on the side surface of the positioning seat, and the limiting rod is mounted in one of the assembly holes.

[0014] Further, an installation rod is also provided on the side plate, and the installation rod extends between the upper positioning rod and the positioning seat; an eccentric cam is provided on the installation rod, and the lower end of the eccentric cam abuts against the upper surface of the positioning seat.

[0015] In summary, the intelligent catenary full-automatic repair equipment of the present invention can process the sharp corners and burrs on both sides after the wear of the catenary wire into a circular arc transition or a chamfered corner, which can not only improve the repair efficiency, reduce the manpower requirement, but also improve the repair quality. By providing a sliding guide rail at the bottom of the milling and grinding assembly and positioning wheel assemblies on the front and rear sides. Thus, the inclined equipment during walking can be finely adjusted and corrected, solving the problem that the traditional equipment has a walking inclination during the walking process, resulting in poor repair quality. In addition, the setting of the eccentric quick-release handle improves the convenience of equipment disassembly. The present invention has strong practicability and has strong promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of an intelligent catenary automatic milling and polishing equipment of the present invention installed on a catenary;

[0017] Figure 2 is Figure 1 the structural diagram of the milling and polishing equipment in;

[0018] Figure 3 is Figure 2 the structural diagram of the traveling wheel assembly in;

[0019] Figure 4 is the structural diagram of the milling and grinding assembly in 2;

[0020] Figure 5 is Figure 4 one of the schematic diagrams of the machining positions of the tool and the catenary wire in;

[0021] Figure 6 is Figure 2 the structural diagram of the polishing wheel assembly in;

[0022] Figure 7 is Figure 2Schematic diagram of the bottom structure of the middle milling, grinding and polishing equipment. Specific implementation mode

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] As Figures 1 to 7 shown, the present utility model provides an intelligent catenary automatic milling, grinding and polishing equipment, which is suspended and installed on the busbar step surface 101 of the rigid catenary 100 to mill, grind and polish the catenary 102 for repair. The intelligent catenary automatic milling, grinding and polishing equipment includes a mounting frame 10 and a balance wheel assembly 20, a positioning wheel assembly 30, a milling and grinding assembly 40, a polishing wheel assembly 50, and a running wheel assembly 60 installed on the mounting frame 10. The mounting frame 10 includes two side plates 11 and a bottom plate 12 disposed between the two side plates 11. The balance wheel assembly 20 is installed on the top surface of the side plate 11, and the positioning wheel assembly 30, the milling and grinding assembly 40, the polishing wheel assembly 50, and the running wheel assembly 60 are all installed on the bottom plate 12 between the two side plates 11. And the running wheel assembly 60 is disposed at the frontmost side, the polishing wheel assembly 50 is disposed at the rear side, and the positioning wheel assembly 30 and the milling and grinding assembly 40 are disposed between the running wheel assembly 60 and the polishing wheel assembly 50.

[0025] In this embodiment, four groups of balance wheel assemblies 20 are provided, and two groups are provided on each of the two side plates 11, and the two groups of balance wheel assemblies 20 are arranged in one-to-one correspondence. The balance wheel assembly 20 includes a main body portion 21, a fixed seat 22, and a telescopic spring 23. An upper plate 13 is provided on the inner side of the top of the side plate 11, and the fixed seat 22 is installed on the upper plate 13 by bolts. A fixing hole is provided on the bottom surface of the fixed seat 22, the main body portion 21 is installed in the fixing hole, and a limiting hole 24 is provided on the outer surface of the fixed seat 22. The limiting hole 24 is arranged in a "C" shape, and includes a connecting hole and a first extension hole and a second extension hole communicating with both ends of the connecting hole. The first extension hole and the second extension hole both extend outward, and the length of the first extension hole is longer than that of the second extension hole.

[0026] The main body part 21 includes a balance wheel 211, a connecting shaft 212, and a flange 213. Both ends of the connecting shaft 212 are connected to the balance wheel 211 and the flange 213. The balance wheel 211 is arranged on the inner side, and the flange 213 is arranged on the outer side. The telescopic spring 23 is arranged between the fixed seat 22 and the flange 213. A limiting post 214 is arranged on the outer surface of the connecting shaft 212, and the limiting post 214 extends into the limiting hole 24. During use, when the flange 213 is rotated and the limiting post 214 is moved to be clamped in the second extension hole, since the telescopic spring 23 has an outward elastic force on the flange 213, the limiting post 214 can always be limited to the outer end of the second extension hole and there is no possibility of coming out. At this time, the balance wheel 211 moves towards the middle and reaches the busbar step 101 of the rigid catenary 100, which can play the role of hanging the balance device. On the contrary, when the limiting post 214 is moved to one side of the first extension hole, under the action of the telescopic spring 23, the limiting post 214 stops at the end of the first extension hole. At this time, the balance wheel 211 moves towards the outside away from the rigid catenary 100, and the balance wheel 211 can be moved out from the busbar step, so as to facilitate the disassembly of the device.

[0027] The running wheel assembly 60 includes a mounting seat 61, a mounting rod 62, running wheels 63, a quick-release handle 64, and a driving device 65. Both ends of the running wheels 63 are pivotally connected to the mounting seat 61. The driving device 65 is arranged outside the mounting seat 61 and can drive the running wheels 63 to rotate to move forward. In this embodiment, the driving device 65 is a motor. The mounting rod 62 is arranged on the bottom surface of the mounting seat 61. The quick-release handle 64 is installed at the bottom end of the mounting rod 62, located below the bottom plate 12 and can rotate along the mounting rod 62. The quick-release handle 64 is installed on the connecting rod 62 through a rotating shaft. In this embodiment, the quick-release handle 64 is an eccentric structure. The quick-release handle 64 is provided with two relatively arranged near sides and far sides. The near side is the side where the mounting axis is closest to the quick-release handle 64, and the far side is the side farther from the rotating shaft. When the near side of the quick-release handle 64 rotates to one side of the mounting rod 62, at this time, the dimension of the mounting rod 62 extending on the bottom plate 12 is longer, and it supports the running wheels 63 to move upward to contact the rigid catenary 100 for forward and backward movement. When the far side of the quick-release handle 64 rotates to one side of the mounting rod 62, at this time, the mounting rod 62 below the bottom plate 12 is longer, and the mounting rod 62 extending above the bottom plate 12 is shorter, so that the running wheels 63 are lowered and farthest from the rigid catenary 100.

[0028] A through hole 121 is provided in the middle of the bottom plate 12, and guide rails 122 are provided on both sides of the through hole 121. A middle plate 14 is provided above the bottom plate 12. A moving member 141 is provided on the bottom surface of the middle plate 14. A guide groove is provided on the bottom surface of the moving member 141, and the guide groove is installed on the guide rail 122; the middle plate 14 can move along the guide rail 122 to adjust its position. In this embodiment, two sets of positioning wheel assemblies 30 are provided and are both installed on the middle plate 14, and the milling and grinding assembly 40 is installed between the two positioning wheel assemblies 30. The positioning wheel assembly 30 includes a positioning base 31, a positioning wheel 32 and a mounting rod 33. The positioning wheel 32 is installed on the positioning base 31, and the mounting rod 33 is installed on the middle plate 14.

[0029] The milling and grinding assembly 40 includes a middle mounting plate 41 and two limit wheel devices 43, a milling and grinding device 42, and an adjustment device 44 provided above the middle mounting plate 41. The two limit wheel devices 43 are respectively provided on the front and rear sides of the milling and grinding device 42. The top end of the adjustment device 44 extends to the middle mounting plate 41, and the bottom end extends into the through hole 121 of the bottom plate 12. The milling and grinding device 42 includes a milling and grinding base 421, a cutter 422 and a milling and grinding drive device 423 installed on the milling and grinding base 421. The milling and grinding drive device 422 drives the cutter 421 to rotate. In this embodiment, the cutter 421 is arranged in a disc shape, and the cross section of its outer peripheral surface is in an arc shape, and it can mill and process the bottom arc surface of the contact wire.

[0030] The limit wheel device 43 includes a limit base 431, a limit wheel 432 arranged in the limit base 431 and a guide post assembly arranged at the bottom of the limit base 431. The guide post assembly includes a lower mounting portion 433, an upper mounting portion 434, a guide post 435 and a spring 436. The bottom end of the guide post 435 is fixedly arranged on the middle mounting plate 41, and the top end passes through the limit base 431 and extends upward out of the bottom surface of the limit base 431. The lower mounting portion 433 and the upper mounting portion 434 are both sleeved on the outer side of the guide post 435, and the lower mounting portion 433 is installed on the middle mounting plate 41, and the upper mounting portion 434 is installed at the bottom of the limit base 431. The spring 436 is sleeved on the guide post 435 and is located between the upper mounting portion 434 and the lower mounting portion 433. The spring 436 can push the limit base 431 to move upward through its elastic force, so as to ensure that the limit wheel 432 is always pressed tightly against the contact wire. In addition, a plurality of spring plungers 15 are also provided between the milling and grinding assembly 40 and the side plate 11 for vibration damping.

[0031] When the milling and grinding assembly 40 is working, due to the uneven installation of the contact wire and different depths of the worn contact surface, if the feed of the cutter 422 is at a certain depth, there will be a problem that a section is under-machined or not machined at all. In this embodiment, the milling and grinding assembly 40 uses the worn plane of the contact wire as a reference for machining feed, and at the same time, a limit wheel 432 is set for limiting, which can prevent over-machining and play a role in protecting the contact wire. The setting of the bottom guide rail 122 of the intermediate plate 14 can finely adjust the position of the milling and grinding assembly 40, thereby further improving the repair accuracy. During the repair process, the cutter 422 can machine the sharp corners and burrs on both sides of the worn contact wire into a circular arc transition or chamfering, thereby improving the repair quality.

[0032] The polishing wheel assembly 50 includes a positioning frame and a driving motor 52, a polishing wheel 53, and a tension spring 54 mounted on the positioning frame. The driving motor 52 is used to drive the polishing wheel 53 to rotate. In this embodiment, the driving motor 52 is a linear reduction motor. The positioning frame includes a positioning seat 511, an upper positioning rod 512, a lower positioning rod 513, and a mounting rod 514. The upper positioning rod 512 is arranged above the lower positioning rod 513, the positioning seat 511 is arranged behind the upper positioning rod 512, and the mounting rod 514 is arranged between the upper positioning rod 512 and the positioning seat 511 and above the positioning seat 511. The positioning seat 511 is pivotally connected to the lower positioning rod 513. A limiting rod 515 is arranged inside the positioning seat 511 on the inner side of the polishing wheel 53. A plurality of arranged assembly holes 517 are arranged on the side surface of the positioning seat 511. The limiting rod 515 can be mounted in the corresponding assembly hole 517 according to requirements, so as to realize the adjustment of the angular position of the positioning seat 511.

[0033] The upper end of the tension spring 54 is hung on the upper positioning rod 512, and the lower end is hung on the limiting rod 515. In addition, an eccentric cam 516 is also arranged on the mounting rod 514. During operation, the polishing wheel 53 is driven by the driving motor 52 to rotate, and a pre-tightening force is applied through the tension spring 54 to polish the contact wire to make the surface smooth. The setting of the eccentric cam 516 can rotate the eccentric cam 516 to the side with the maximum edge distance, push the positioning seat 511 downward, and stop the polishing process, so as to facilitate disassembly.

[0034] Before working, move the balance wheel 211 on the balance wheel assembly 20 inward so that the balance wheel 211 extends onto the busbar step 101 of the rigid catenary 100 to suspend the balance equipment. Then rotate the quick-release handle 64 and adjust the position-adjusting device 44 to enable the positioning wheel assembly 30, the milling and grinding assembly 40, and the running wheel assembly 60 to achieve precise positioning at the rigid catenary 100 and the contact wire 102. During operation, start the equipment, and the running wheel assembly 60 drives the equipment to move forward. The cutter 424 of the milling and grinding assembly 40 mills the lower surface and the corner positions of the contact wire 102, and processes the sharp corners and burrs on both sides after the wear of the contact wire into a circular arc transition or a chamfered corner. The polishing wheel assembly 50 polishes the contact wire 102 after milling to improve the repair quality. In addition, the intelligent fully automatic contact wire repair equipment further includes a remote control device, and the control device can be a controller such as a mobile phone, a remote control, or a computer, and can control the running speed, start, stop, etc. of the equipment according to requirements.

[0035] In summary, the intelligent fully automatic contact wire repair equipment of the present invention can process the sharp corners and burrs on both sides after the wear of the contact wire into a circular arc transition or a chamfered corner, which can not only improve the repair efficiency, reduce the manpower requirement, but also improve the repair quality. By arranging a sliding guide rail at the bottom of the milling and grinding assembly 40 and positioning wheel assemblies 30 on both the front and the rear sides, the equipment tilted during walking can be finely adjusted and corrected, and the problem that the traditional equipment has walking tilt during the walking process, resulting in poor repair quality, is solved. In addition, the setting of the eccentric quick-release handle improves the convenience of equipment disassembly. The present invention has strong practicability and has strong popularization significance.

[0036] The above embodiments only represent one implementation manner of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. An intelligent automatic milling, grinding and polishing equipment for contact wires, characterized in that: It includes a mounting frame and several groups of balance wheel assemblies, positioning wheel assemblies, milling assemblies, polishing wheel assemblies, and traveling wheel assemblies installed on the mounting frame. The mounting frame includes two side plates and a bottom plate disposed between the two side plates. The balance wheel assemblies are installed on the top surfaces of the side plates. The positioning wheel assemblies, milling assemblies, polishing wheel assemblies, and traveling wheel assemblies are all installed on the bottom plate between the two side plates. And the traveling wheel assemblies are arranged at the frontmost side, the polishing wheel assemblies are arranged at the rear side, and the positioning wheel assemblies and milling assemblies are arranged between the traveling wheel assemblies and the polishing wheel assemblies. The milling assembly includes a middle mounting plate and a milling device disposed above the middle mounting plate. A guide rail is provided on the top surface of the bottom plate, and the extending direction of the guide rail is perpendicular to the traveling direction of the equipment. A guide groove is provided at the bottom of the middle mounting plate, and the guide groove is engaged with the guide rail and can move along the guide rail. The milling device includes a milling base and a cutter installed on the milling base. The cutter is arranged in a disc shape, and the cross-section of its outer surface is concave in an arc shape.

2. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 1, characterized in that: The milling assembly further includes two limit wheel devices, and the limit wheel devices are arranged on the middle mounting plate and located on the front and rear sides of the milling device.

3. The intelligent catenary automatic milling, grinding and polishing equipment according to claim 2, characterized in that: The limit wheel device includes a limit base, a limit wheel disposed in the limit base, and a guide post assembly disposed at the bottom of the limit base. The guide post assembly is installed on the middle mounting plate.

4. The intelligent catenary automatic milling, grinding and polishing equipment according to claim 3, characterized in that: The guide post assembly includes a guide post and a spring sleeved outside the guide post. The bottom end of the guide post is fixedly installed on the middle mounting plate, and the limit base is movably installed on the guide post above the guide post spring.

5. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 4, characterized in that: The milling assembly further includes an adjustment device. The top end of the adjustment device extends to the middle mounting plate, and the bottom end extends out of the bottom plate. A rotary handle for controlling the lifting of the middle mounting plate is provided at the bottom end of the adjustment device.

6. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 1, wherein: The traveling wheel assembly includes a mounting seat, a mounting rod disposed on the bottom surface of the mounting seat, a traveling wheel installed on the mounting seat, a quick-release handle movably arranged at the bottom end of the mounting rod, and a driving device. The quick-release handle is located below the bottom plate.

7. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 6, characterized in that: The quick-release handle has an eccentric structure. The mounting end of the quick-release handle is provided with a mounting hole and two opposite side surfaces. Among them, the distances from the two side surfaces to the mounting hole are different.

8. The intelligent automatic milling, grinding and polishing equipment for contact wire according to claim 1, wherein: The polishing wheel assembly includes a positioning frame and a driving motor, a polishing wheel, and a tension spring installed on the positioning frame. The positioning frame includes a positioning seat and an upper positioning rod. The upper positioning rod is installed on the side plate. The positioning seat is pivotally connected to the bottom plate. A limit rod is provided on the positioning seat inside the polishing wheel. One end of the tension spring is installed on the upper positioning rod, and the other end is installed on the limit rod.

9. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 8, characterized in that: A plurality of arranged assembly holes are provided on the side surface of the positioning seat, and the limit rod is installed in one of the assembly holes.

10. The intelligent automatic milling, grinding and polishing equipment for contact wires according to claim 8, characterized in that: An installation rod is further provided on the side plate, and the installation rod extends between the upper positioning rod and the positioning seat. An eccentric cam is provided on the installation rod, and the lower end of the eccentric cam abuts against the upper surface of the positioning seat.

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