A rigid contact wire milling device

Abstract

The application discloses a kind of rigid contact line milling and grinding equipment, belongs to track milling and grinding equipment field.The equipment includes main frame body component, driving wheel component, driven wheel component, milling cutter component, milling cutter seat automatic lifting assembly, guide wheel component, laser distance sensor, monitoring component and iron filings collection component.Milling cutter seat automatic lifting assembly is installed in the middle of main frame body, driving wheel and driven wheel component are separately arranged on its front and back side, milling cutter component is installed on milling cutter seat automatic lifting assembly, laser distance sensor and automatic lifting adjusting assembly ensure the same cutting amount of different wear width rigid contact line.Guide wheel component is above driving wheel and driven wheel, and it rolls and is fixed.The front and back side of equipment has monitoring component to monitor milling and grinding condition, and there are iron filings collection component on the front and back side of milling cutter component and wheel component to collect iron filings.The equipment can solve many problems of existing polishing scheme, such as high labor cost, incomplete polishing, uneven treatment, poor uneven wear, etc., and has wide application prospect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of rail milling equipment, and particularly relates to a rigid contact line milling equipment. BACKGROUND

[0002] Since 2003, the rigid contact net has been introduced from abroad to Guangzhou Metro Line 2, and is widely used in various cities due to its simple structure, easy maintenance and good performance. However, in actual operation, problems such as high and uneven wear rate of the rigid contact line and irregular wear of the carbon slide plate of the electric train pantograph occur, which worsens the pantograph-catenary relationship and affects the safe operation of the metro. Rigid contact line grinding is an effective disposal measure, and there are currently two schemes of manual sandpaper grinding and electric equipment grinding wheel. Manual sandpaper grinding is fine and has low material cost, but requires a large amount of manpower, has high operation intensity, low efficiency and safety hazards. The electric equipment grinding wheel improves the degree of automation and efficiency to some extent, but has the disadvantages of insufficient stability of the driving mode of the running part, incomplete grinding of only the bottom plane, poor treatment of uneven wear, and unreasonable processing that easily causes serious wear due to the assembly problem of the rigid contact line and the busbar. SUMMARY

[0003] The present application aims to provide a rigid contact line milling equipment, and aims to solve the problems in the background art. To achieve the purpose, the technical solution adopted by the present application is:

[0004] A rigid contact line milling equipment, comprising a main frame assembly, a driving wheel assembly, a driven wheel assembly, a milling cutter assembly, a milling cutter seat automatic lifting assembly, a guide wheel assembly, a laser distance sensor, a monitoring assembly and a iron filings collection assembly, the milling cutter seat automatic lifting assembly, the guide wheel assembly, the driving wheel assembly and the driven wheel assembly are all installed on the main frame assembly, the milling cutter seat automatic lifting assembly is installed in the middle of the main frame assembly, the driving wheel assembly and the driven wheel assembly are respectively installed on the front side and the rear side of the milling cutter seat automatic lifting assembly, the milling cutter assembly is installed on the milling cutter seat automatic lifting assembly, the milling cutter assembly is used for milling the rigid contact line on the subway or train track, the guide wheel assembly is installed above the driving wheel and the driven wheel assembly, the guide assembly is used for cooperating with the front and rear rolling of the driving wheel assembly and the driven wheel assembly and is fixed on the rigid contact line frame, the laser distance sensor is installed on the driving wheel assembly, the milling cutter assembly is adjusted by the laser distance sensor on the driving wheel assembly and the milling cutter automatic lifting adjustment assembly, so as to ensure that the rigid contact line with different wear widths realizes the same cutting amount and mills the rigid contact line, the front side and the rear side of the milling cutter assembly are also provided with the iron filings collection assembly above the driven wheel assembly and the driving wheel assembly, the iron filings collection assembly is used for collecting the iron filings of the rigid contact line milled by the milling cutter assembly, and the front side and the rear side of the main frame are provided with the monitoring assembly, which is used for real-time monitoring of the situation of the equipment milling the rigid contact line.

[0005] Preferably, the main frame assembly comprises a base plate, side plates, mounting plates, linear bearings and connecting shafts, the left and right sides of the base plate are provided with side plates, the top of the side plates is provided with integrally formed mounting plates extending inward, the mounting plates are used for fixing the guide wheel assembly, the front and rear sides of the side plates are further provided with connecting shafts, the monitoring assembly is mounted on the connecting shafts, the middle part of the base plate is provided with four linear bearings, the linear bearings are parallel in pairs, a milling cutter seat automatic lifting assembly is arranged between the linear bearings, the linear bearings penetrate through the base plate and are connected with the milling cutter seat automatic lifting assembly, and the linear bearings are used for assisting the milling cutter seat automatic lifting assembly in connection and lifting.

[0006] Preferably, the milling cutter seat automatic lifting assembly comprises a milling cutter mounting seat, first springs, a screw rod and a milling cutter seat mechanical adjustment mechanism, the milling cutter seat mechanical adjustment mechanism is mounted between the linear bearings, the head of the milling cutter seat mechanical adjustment mechanism is provided with the milling cutter mounting seat, the linear bearings penetrate through the base plate and are connected with the milling cutter mounting seat, the first springs are arranged between the milling cutter seat mechanical adjustment mechanism and the milling cutter mounting seat, the first springs are used for enabling the milling cutter assembly to be closely attached to the rigid contact line, the screw rod is arranged in the milling cutter seat mechanical adjustment mechanism, and the screw rod is used for controlling the lifting of the milling cutter mounting seat through elastic deformation of the spring.

[0007] Preferably, the milling cutter assembly comprises a milling cutter, a milling cutter fixing shaft, a milling cutter motor mounting seat, a milling cutter motor, a first coupling, a first driving shaft, a first driven shaft, a synchronous belt, a protractor, an adjustment motor, a zero pointer, a zero point laser limit switch and a height limiting wheel (eccentric wheel), the milling cutter is arranged in the interior of the milling cutter mounting seat through the milling cutter fixing shaft, the left side of the milling cutter mounting seat is provided with the milling cutter motor mounting seat, the milling cutter motor mounting seat is provided with the milling cutter motor, the milling cutter fixing shaft penetrates through the milling cutter mounting seat and is arranged in the interior of the milling cutter motor mounting seat, the motor shaft of the milling cutter motor is arranged in the interior of the milling cutter motor seat, the milling cutter fixing shaft and the milling cutter motor shaft are connected through the first coupling, the front side and the rear side of the milling cutter fixing shaft are respectively provided with the first driving shaft and the first driven shaft, the middle part of the first driving shaft and the first driven shaft is provided with the height limiting wheel (eccentric wheel), the first driving shaft and the first driven shaft are provided with the synchronous belt, the end of the first driving shaft is provided with the zero pointer, the interior of the zero pointer is provided with the protractor, the interior of the protractor is provided with the adjustment motor, the adjustment motor is used for driving the first driving shaft to rotate, and the rear side of the zero pointer is provided with the zero point laser limit switch.

[0008] Preferably, the milling cutter is an arc-shaped milling cutter, and the milling cutter is made of diamond.

[0009] Preferably, the driving wheel assembly comprises a driving wheel, a driving wheel fixing shaft, a floating base, a second spring, an eccentric structure, a driving wheel motor shaft fixing seat, a second coupling and a driving wheel motor, the eccentric structure is installed on the base, the top of the eccentric structure is provided with the floating base, the floating base and the eccentric structure assembly are provided with the second spring, the driving wheel is installed in the inside of the floating base through the driving wheel fixing shaft, the driving wheel motor shaft fixing seat is installed on the outside of the floating base, the driving wheel motor shaft fixing seat is installed with the driving wheel motor, the driving wheel fixing shaft penetrates through the floating base and is connected with the motor shaft of the driving wheel motor through the second coupling, the laser distance sensor is installed on the floating base, the driving wheel motor is used for driving the driving wheel through the coupling, and the driving wheel assembly is the same in structure as the driven wheel assembly except the driving wheel motor and the driving wheel motor shaft fixing seat.

[0010] Preferably, the driving wheel and the driven wheel are V-shaped nylon polishing wheels.

[0011] Preferably, the guide wheel assembly comprises an upper wheel seat, a guide wheel, a shaft, a third spring, a positioning pin and a clamping groove, the upper wheel seat is installed on the mounting plate, the shaft is further provided with the third spring, the third spring is used for automatic return of the guide wheel, the guide wheel is installed on the upper wheel seat through the shaft, the shaft is provided with the positioning pin, and the upper wheel seat is provided with the clamping groove; the positioning pin and the clamping groove are used for limiting the guide wheel.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The electric automatic equipment is used to replace manual polishing, and the working efficiency is greatly improved. A large amount of manpower needs to be invested in traditional manual sandpaper polishing, the working strength is large, and the efficiency is low, while the device can automatically perform milling and polishing operations, and the polishing task of the rigid contact line can be quickly and efficiently completed. At the same time, safety hazards brought by manual polishing are avoided, such as that the burr of the rigid contact line scratches the operating personnel, and that metal particles and dust generated in the polishing process damage the health of the operating personnel.

[0014] 2. In view of the problem of insufficient stability of the driving mode of the walking part of the current rigid contact line polishing equipment, two driving wheels and driven wheels with V-shaped structures are designed. The driving wheel and the driven wheel are installed on independent floating bases, springs are arranged below, the spring force can be applied on the driving wheel and the driven wheel by adjusting the eccentric structure below, the driving wheel and the driven wheel are pressed on the V-shaped structure below the rigid contact line, so that the whole milling and polishing equipment is stably pressed on the busbar. This design ensures the stability of the milling and polishing equipment in the working process, greatly improves the polishing precision, and avoids the situation that the equipment deviates from the correct polishing path due to shaking in the forward and backward movement.

[0015] 3、The present application replaces the ordinary flat milling cutter with a shaped arc milling cutter, realizing comprehensive polishing of the rigid contact line. The rigid contact line polishing equipment on the market usually only polishes the bottom plane, while the present equipment can polish and repair the side edges of the rigid contact line, ensuring that each part of the rigid contact line can be fully treated, improving the polishing quality and effect.

[0016] 4、In view of the unreasonable processing of the device on the rigid contact line in different positions, the present application realizes the function of automatic adjustment of feeding by designing a height limiting wheel (eccentric wheel) cooperating with a stepping motor and a laser distance sensor. The milling cutter height can be dynamically adjusted to ensure that the rigid contact line with different wear widths realizes the same cutting amount for milling and grinding the rigid contact line. The rigid contact line relatively close to the reference surface can be effectively processed, and the rigid contact line relatively far from the reference surface will not be over-processed, avoiding serious wear of the rigid contact line, ensuring that the rigid contact line can be normally used, and prolonging the service life of the rigid contact line. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The overall schematic diagram provided for the embodiment of the present application;

[0018] Figure 2 The overall schematic diagram provided for the embodiment of the present application;

[0019] Figure 3 The local structure schematic diagram provided for the embodiment of the present application;

[0020] Figure 4 The main frame assembly structure schematic diagram provided for the embodiment of the present application;

[0021] Figure 5 The driving wheel assembly structure schematic diagram provided for the embodiment of the present application;

[0022] Figure 6 The milling cutter assembly structure schematic diagram of the embodiment of the present application;

[0023] Figure 7 The milling cutter seat automatic lifting assembly structure schematic diagram of the embodiment of the present application;

[0024] Figure 8 The guide wheel assembly structure schematic diagram of the embodiment of the present application.

[0025] Among them, the various reference signs in the drawings are:

[0026] 1, main frame assembly; 11, bottom plate; 12, side plate; 13, mounting plate; 14, linear bearing; 15, connecting shaft; 2, drive wheel assembly; 21, drive wheel; 22, drive wheel fixing shaft; 23, floating base; 24, second spring; 25, eccentric structure; 26, drive wheel motor shaft fixing seat; 27, second coupling; 28, drive wheel motor; 3, driven wheel assembly; 4, milling cutter assembly; 401, milling cutter; 402, milling cutter fixing shaft; 403, milling cutter motor mounting seat; 404, milling cutter motor; 405, first coupling; 406, first drive shaft; 407, first driven shaft; 408, synchronous belt; 409, index plate; 410, adjusting motor; 411, zero calibration pointer; 412, zero laser limit switch; 413, height limiting wheel (eccentric wheel); 5, milling cutter seat automatic lifting assembly; 51, milling cutter mounting seat; 52, first spring; 53, screw rod; 54, milling cutter seat mechanical adjusting mechanism; 6, guide wheel assembly; 61, upper wheel seat; 62, guide wheel; 63, clamping shaft; 64, positioning pin; 65, clamping groove; 66, third spring; 7, laser distance sensor; 8, monitoring assembly; 9, iron filings collecting assembly; 91, iron filings baffle; 92, blower; 93, iron filings box. DETAILED DESCRIPTION

[0027] For the purpose of promoting an understanding of the principles of the application, reference will now be made to the embodiments illustrated in the drawings. There is shown in the drawings, several embodiments of the application. It is readily appreciated that the instant application is not limited to the embodiments shown in the drawings. Rather, the embodiments are provided for illustrative purposes, so as to convey the principles of the application to others skilled in the art.

[0028] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. As used herein the terms "vertical", "horizontal", "left", "right", and the like are merely used for the purpose of illustration and are not intended to be limiting. As used herein, the terms "top", "bottom", "left", "right", "front", "back", and the like describe the positions of the elements as they are oriented in the figures.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0031] like Figures 1-8 As shown, this embodiment of the invention provides a rigid contact wire milling device, including a main frame assembly 1, a drive wheel assembly 2, a driven wheel assembly 3, a milling cutter assembly 4, an automatic milling cutter holder lifting assembly 5, a guide wheel assembly 6, a laser distance sensor 7, a monitoring assembly 8, and a chip collection assembly 9. The automatic milling cutter holder lifting assembly 5, guide wheel assembly 6, drive wheel assembly 2, and driven wheel assembly 3 are all mounted on the main frame assembly 1. The automatic milling cutter holder lifting assembly 5 is mounted in the middle of the main frame assembly 1. The drive wheel assembly 2 and driven wheel assembly 3 are respectively mounted on the front and rear sides of the automatic milling cutter holder lifting assembly 5. The milling cutter assembly 4 is mounted on the automatic milling cutter holder lifting assembly 5. The milling cutter assembly 4 is used for milling rigid contact wires on subway or train tracks. The guide wheel assembly 6 is mounted on the drive wheel assembly 9. Above the driven wheel assembly 3 and drive wheel assembly 21, a guide assembly is used to cooperate with the drive wheel assembly 2 and driven wheel assembly 3 to roll back and forth and be fixed on the rigid contact line frame. A laser distance sensor 7 is installed on the drive wheel assembly 2. The milling cutter assembly 4 ensures that the same cutting amount is achieved for milling the rigid contact line with different wear widths by means of the laser distance sensor 7 on the drive wheel assembly 2 and the automatic lifting adjustment assembly of the milling cutter 401. A chip collection assembly 9 is also installed on the front and rear sides of the milling cutter assembly 4 and on the driven wheel assembly 3 and drive wheel assembly 2. The chip collection assembly 9 is used to collect the chips from the milling of the rigid contact line by the milling cutter assembly 4. A monitoring assembly 8 is set on the front and rear sides of the main frame. The monitoring assembly 8 is used to monitor the milling of the rigid contact line by the equipment in real time.

[0032] In this embodiment, the main frame assembly includes a base plate 11, side plates 12, mounting plates 13, linear bearings 14, and connecting shafts 15. Side plates 12 are installed on the left and right sides of the base. An integrally formed mounting plate 13 extending inward is installed on the top of the side plates 12. The mounting plate 13 is used to fix and install the guide wheel assembly 6. Connecting shafts 15 are also installed on the front and rear sides of the side plates 12. The monitoring assembly 8 is installed on the connecting shaft 15. Four linear bearings 14 are arranged in the middle of the base plate 11. The linear bearings 14 are parallel to each other. An automatic milling cutter seat lifting assembly 5 is arranged between the linear bearings 14. The linear bearings 14 pass through the base and connect to the automatic milling cutter seat lifting assembly 5. The linear bearings 14 are used to assist the automatic milling cutter seat lifting assembly 5 in connecting and lifting.

[0033] In the embodiment, the milling cutter seat automatic lifting assembly 5 comprises a milling cutter mounting seat 51, a first spring 52, a screw rod 53 and a milling cutter seat mechanical adjusting mechanism 54. The milling cutter seat mechanical adjusting mechanism 54 is installed between the linear bearings 14. The head of the milling cutter seat mechanical adjusting mechanism 54 is provided with the milling cutter mounting seat 51. The linear bearings 14 penetrate through the base and are connected with the milling cutter mounting seat 51. The first spring 52 is arranged between the milling cutter seat mechanical adjusting mechanism 54 and the milling cutter mounting seat 51. The first spring 52 is used to enable the milling cutter assembly 4 to be closely attached to the rigid contact line. The screw rod 53 is arranged in the milling cutter seat mechanical adjusting mechanism 54. The screw rod 53 is used to control the elastic deformation of the spring, thereby controlling the lifting of the milling cutter mounting seat 51.

[0034] In the embodiment, the milling cutter assembly 4 comprises a milling cutter 401, a milling cutter fixing shaft 402, a milling cutter motor mounting seat 403, a milling cutter motor 404, a first coupling 405, a first driving shaft 406, a first driven shaft 407, a synchronous belt, a graduation disc 409, an adjusting motor 410, a zero calibration pointer 411, a zero point laser limit switch 412 and a height limiting wheel (eccentric wheel) 413. The milling cutter 401 is installed in the interior of the milling cutter mounting seat 51 through the milling cutter fixing shaft 402. The left side of the milling cutter mounting seat 51 is provided with the milling cutter motor mounting seat 403. The milling cutter motor mounting seat 403 is provided with the milling cutter motor 404. The milling cutter fixing shaft 402 penetrates through the milling cutter mounting seat 51 and is installed in the interior of the milling cutter motor mounting seat 403. The motor shaft of the milling cutter motor 404 is installed in the interior of the milling cutter motor mounting seat 403. The milling cutter motor 404 shaft is connected with the milling cutter fixing shaft 402 through the first coupling 405. The front side and the rear side of the milling cutter fixing shaft 402 are respectively provided with the first driving shaft 406 and the first driven shaft 407. The middle part of the first driving shaft 406 and the first driven shaft 407 is provided with the height limiting wheel (eccentric wheel) 413. The first driving shaft 406 and the first driven shaft 407 are provided with the synchronous belt. The end of the first driving shaft 406 is provided with the zero calibration pointer 411. The interior of the zero calibration pointer 411 is provided with the graduation disc 409. The interior of the graduation disc is provided with the adjusting motor 410. The adjusting motor 410 is used to drive the first driving shaft 406 to rotate. The rear side of the zero calibration pointer 411 is provided with the zero point laser limit switch 412.

[0035] In the embodiment, the milling cutter 401 is an arc-shaped milling cutter 401. The milling cutter 401 is made of diamond.

[0036] In the embodiment, the driving wheel assembly 2 comprises a driving wheel 21, a driving wheel fixing shaft 22, a floating base 23, a second spring 24, an eccentric structure 25, a driving wheel motor shaft fixing seat 26, a second coupling 27 and a driving wheel motor 28. The eccentric structure 25 is installed on the base, the top of the eccentric structure 25 is provided with the floating base 23, the floating base 23 and the eccentric structure 25 are provided with the second spring 24, the driving wheel 21 is installed inside the floating base 23 through the driving wheel fixing shaft 22, the driving wheel motor shaft fixing seat 26 is installed on the outside of the floating base 23, the driving wheel motor shaft fixing seat 26 is installed with the driving wheel motor 28, the driving wheel fixing shaft 22 penetrates through the floating base 23 and the motor shaft of the driving wheel motor 28 is connected through the second coupling 27, the laser distance sensor 7 is installed on the floating base 23, the driving wheel motor 28 is used for driving the driving wheel 21 through the coupling, and the driving wheel assembly 2 is the same in structure as the driven wheel assembly 3 except the driving wheel motor 28 and the driving wheel motor shaft fixing seat 26.

[0037] In the embodiment, the driving wheel 21 and the driven wheel are nylon polished wheels, and the driving wheel 21 and the driven wheel are V-shaped structures.

[0038] In the embodiment, the guide wheel assembly 6 comprises an upper wheel seat 61, a guide wheel 62, a clamping shaft 63, a third spring 66, a positioning pin 64 and a clamping groove 65. The upper wheel seat 61 is installed on the mounting plate 13, the guide wheel 62 is installed on the upper wheel seat 61 through the clamping shaft 63, the clamping shaft 63 is further provided with the third spring 66, the third spring 66 is used for automatic return of the guide wheel 62, the clamping shaft 63 is provided with the positioning pin 64, and the upper wheel seat 61 is provided with the clamping groove 65. The positioning pin 64 and the clamping groove 65 are used for limiting the guide wheel 62.

[0039] Working principle

[0040] Device installation and positioning

[0041] Firstly, the spring 24 is adjusted through the eccentric structure 25, so that the floating base 23 is at the lowest position; the first spring 52 is adjusted through the screw rod 53, so that the milling cutter assembly 4 is at the lowest position. Then the main frame body assembly 1 is placed at a suitable working position through the bottom plate 11 at the bottom of the side plate 12, so that the device is located near the rigid contact line of the subway or train track. Then the guide wheel assembly 6 is lifted, so that the lowest point of the guide wheel assembly 6 is higher than the lower plane of the busbar, the guide wheel 62 is rotated by 90 degrees through the clamping shaft 63 to compress the spring 61 and then the spring is loosened, the limiting of the guide wheel 62 is realized by cooperation of the limiting pin 64 on the clamping shaft 63 and the clamping groove 65 on the guide wheel assembly 6, so that the guide wheel 62 can stably roll on the rigid contact line frame body, thereby realizing preliminary positioning and stable placement of the device on the rigid contact line in cooperation with the driving wheel assembly 2 and the driven wheel assembly 3.

[0042] Operation of the driving wheel and the driven wheel

[0043] The driving wheel motor 28 is started, and the driving wheel fixed shaft 22 is rotated through the second coupling 27, and the driving wheel 21 is rotated. The driving wheel 21 is a nylon polished wheel and has a V-shaped structure, and the V-shaped structure can closely contact the rigid contact line, and the friction generated during rotation drives the whole device to move along the rigid contact line. At the same time, the driven wheel assembly 3 (which is the same as the driving wheel assembly 2 except that the driving wheel motor 28 and the driving wheel motor shaft fixing seat 26 are different in structure) plays a role of driving and auxiliary support during the movement of the device, and ensures the stable operation of the device on the rigid contact line. The eccentric structure 25 is installed on the base, and the floating base 23 at the top thereof is connected with the eccentric structure 25 through the second spring 24, so that the floating base 23 can float within a certain range. This design can make the driving wheel 21 better adapt to different working conditions of the rigid contact line and maintain stable driving force.

[0044] Milling action of the milling cutter assembly

[0045] The milling cutter motor 404 is started, and the motor shaft drives the milling cutter fixed shaft 402 to rotate through the first coupling 405, so that the milling cutter 401 installed on the milling cutter fixed shaft 402 rotates at high speed. The milling cutter 401 is arc-shaped and is made of diamond material. The arc-shaped design can closely contact the shape of the rigid contact line for overall milling, and the diamond material ensures the hardness and wear resistance of the milling cutter, which can effectively mill the rigid contact line.

[0046] Adjustment of the milling cutter seat automatic lifting assembly

[0047] The laser distance sensor 7 installed on the floating base 23 of the driving wheel assembly 2 monitors the distance between the driving wheel 21 and the rigid contact line in real time. When the distance changes due to different wear widths of the rigid contact line, the laser distance sensor 7 transmits a signal to the milling cutter assembly 4. The motor 410 in the milling cutter assembly 4 controls the first driving shaft 406 and the first driven shaft 407 on the front side and the rear side of the milling cutter fixed shaft 402 through synchronous belt transmission according to the received signal, and utilizes the eccentric effect of the first driving shaft 406 and the first driven shaft 407 to make the spring 52 in the spring adjusting shaft 54 elastically deform, so as to adjust the lifting height of the milling cutter mounting seat 5. The motor 410 can drive the first driving shaft 406 to rotate, and cooperate with the zero calibration pointer 411 and the laser limit 412 to realize accurate zero calibration of the milling cutter, so as to ensure that the height limiting wheel (eccentric wheel) 413 is at the lowest position. Before preparation, the height limiting wheel (eccentric wheel) 413 is adjusted to the set maximum value by the motor 410, so that the milling cutter assembly 4 is at the lowest position and far away from the contact line, thereby ensuring that the milling cutter is not damaged when it starts to rotate.

[0048] The spring adjusting shaft 54 is installed between the linear bearings 14 which are connected with the milling cutter mounting seat 51 through the base, and the auxiliary milling cutter mounting seat 51 realizes stable lifting, and the milling cutter 401 and the rigid contact line always keep a proper cutting distance, and then the rigid contact line with different wear widths can obtain the same cutting amount.

[0049] Iron filings collection and monitoring guarantee

[0050] During the milling and grinding of the rigid contact line by the milling cutter assembly 4, the iron filings generated are isolated by the iron filings baffle assembly 9 installed on the front side and the rear side of the milling cutter assembly 4 and the driven wheel assembly 3 and the driving wheel assembly 2. The iron filings are blown to the iron filings baffle 92 by the air blower 91 on the iron filings collection assembly 9, and then automatically fall into the iron filings box 93, so as to prevent the iron filings from splashing and affecting the equipment and the working environment. At the same time, the monitoring assembly 8 installed on the connecting shaft 15 of the main frame body assembly 1 monitors the milling and grinding of the rigid contact line in real time, including the milling and grinding position, the milling and grinding depth, the milling and grinding surface quality and the like, and the operator can adjust the equipment parameters or handle the abnormal situation in time according to the monitoring information, so as to guarantee the safety and the quality of the milling and grinding operation. The above implementation manners are only used for describing the present application, and are not used for limiting the present application. The ordinary skilled in the related technical field can make various changes and modifications without departing from the spirit and the scope of the present application, and all the equivalent technical schemes also belong to the scope of the present application. The patent protection scope of the present application should be defined by the claims.

Claims

1. A rigid contact wire milling device, characterized by: The application relates to a rigid contact line milling device, which comprises a main frame body assembly, a driving wheel assembly, a driven wheel assembly, a milling cutter assembly, a milling cutter seat automatic lifting assembly, a guide wheel assembly, a laser distance sensor, a monitoring assembly and a iron filings collecting assembly, wherein the milling cutter seat automatic lifting assembly, the guide wheel assembly, the driving wheel assembly and the driven wheel assembly are all installed on the main frame body assembly, the milling cutter seat automatic lifting assembly is installed on the middle part of the main frame body assembly, the driving wheel assembly and the driven wheel assembly are respectively installed on the front side and the rear side of the milling cutter seat automatic lifting assembly, the milling cutter assembly is installed on the milling cutter seat automatic lifting assembly and is used for milling rigid contact lines on a subway or train track, the guide wheel assembly is installed above the driving wheel assembly and the driven wheel assembly, the guide assembly is used for cooperating with the front and rear rolling of the driving wheel assembly and the driven wheel assembly and is fixed on a rigid contact line frame body, the laser distance sensor is installed on the driving wheel assembly, the milling cutter assembly is adjusted by the laser distance sensor on the driving wheel assembly and the milling cutter automatic lifting adjusting assembly, so that the rigid contact lines with different wear widths can realize the same cutting amount and the rigid contact lines are milled, the front side and the rear side of the milling cutter assembly are provided with the iron filings collecting assembly between the driving wheel assembly and the driven wheel assembly, the iron filings collecting assembly is used for collecting the iron filings of the rigid contact lines milled by the milling cutter assembly, and the front side and the rear side of the main frame body assembly are provided with the monitoring assembly, which is used for monitoring the milling of the rigid contact lines in real time. The milling cutter assembly comprises a milling cutter, a milling cutter fixing shaft, a milling cutter motor mounting seat, a milling cutter motor, a first coupling, a first driving shaft, a first driven shaft, a synchronous belt, an indexing disc, an adjusting motor, a zero pointer, a zero point laser limiting switch and a height limiting wheel, the milling cutter is installed in the interior of the milling cutter mounting seat through the milling cutter fixing shaft, the left side of the milling cutter mounting seat is provided with the milling cutter motor mounting seat, the milling cutter motor mounting seat is provided with the milling cutter motor, the milling cutter fixing shaft penetrates through the milling cutter mounting seat and is installed in the interior of the milling cutter motor mounting seat, the motor shaft of the milling cutter motor is installed in the interior of the milling cutter motor seat, the milling cutter motor shaft is connected with the milling cutter fixing shaft through the first coupling, the front side and the rear side of the milling cutter fixing shaft are respectively provided with the first driving shaft and the first driven shaft, the middle part of the first driving shaft and the first driven shaft is provided with the height limiting wheel, the first driving shaft and the first driven shaft are installed with the synchronous belt, the end part of the first driving shaft is provided with the zero pointer, the interior of the zero pointer is provided with the indexing disc, the interior of the indexing disc is provided with the adjusting motor, the adjusting motor is used for driving the first driving shaft to rotate, and the rear side of the zero pointer is provided with the zero point laser limiting switch.

2. A rigid contact wire milling device according to claim 1, characterized in that: The main frame body assembly comprises a base, side plates, mounting plates, linear bearings and connecting shafts, the left and right sides of the base are provided with the side plates, the top of the side plates is provided with the mounting plates which are integrally formed and extend inward, the mounting plates are used for fixing the guide wheel assembly, the front and rear sides of the side plates are also provided with the connecting shafts, the monitoring assembly is installed on the connecting shafts, the middle of the base is provided with four linear bearings, the linear bearings are parallel to each other, the linear bearings are provided with the milling cutter seat automatic lifting assembly, the linear bearings penetrate through the base and are connected with the milling cutter seat automatic lifting assembly, and the linear bearings are used for assisting the milling cutter seat automatic lifting assembly to connect and lift.

3. A rigid contact wire milling device according to claim 2, characterized in that: The milling cutter seat automatic lifting assembly comprises a milling cutter mounting seat, first springs, a screw rod and a milling cutter seat mechanical adjusting mechanism, the milling cutter seat mechanical adjusting mechanism is installed between the linear bearings, the head of the milling cutter seat mechanical adjusting mechanism is provided with the milling cutter mounting seat, the linear bearings penetrate through the base and are connected with the milling cutter mounting seat, the first springs are arranged between the milling cutter seat mechanical adjusting mechanism and the milling cutter mounting seat, the first springs are used for enabling the milling cutter assembly to be closely fitted with a rigid contact line, the inside of the milling cutter seat mechanical adjusting mechanism is provided with the screw rod, and the screw rod is used for controlling the lifting of the milling cutter mounting seat by elastically deforming the spring.

4. A rigid contact wire milling device according to claim 3, characterized in that: The milling cutter is an arc-shaped milling cutter, and the milling cutter is made of diamond.

5. A rigid contact wire milling device according to claim 4, characterized in that: The driving wheel assembly comprises a driving wheel, a driving wheel fixing shaft, a floating base, second springs, an eccentric structure, a driving wheel motor shaft fixing seat, a second coupling and a driving wheel motor, the eccentric structure is installed on the base, the top of the eccentric structure is provided with the floating base, the floating base and the eccentric structure assembly are provided with the second springs, the driving wheel is installed in the inside of the floating base through the driving wheel fixing shaft, the driving wheel motor shaft fixing seat is installed on the outside of the floating base, the driving wheel motor shaft fixing seat is provided with the driving wheel motor, the driving wheel fixing shaft penetrates through the floating base and is connected with the motor shaft of the driving wheel motor through the second coupling, the floating base is provided with the laser distance sensor, and the driving wheel motor is used for driving the driving wheel through the coupling.

6. A rigid contact wire milling device according to claim 5, characterized in that: The driving wheel and the driven wheel are nylon polishing wheels, and the driving wheel and the driven wheel are V-shaped structures.

7. A rigid contact wire milling device according to claim 6, characterized in that: The guide wheel assembly comprises an upper wheel seat, a guide wheel, a clamping shaft, third springs, a positioning pin and a clamping groove, the upper wheel seat is installed on the mounting plate, the guide wheel is installed on the upper wheel seat through the clamping shaft, the clamping shaft is also provided with the third springs, the third springs are used for the automatic return of the guide wheel, the clamping shaft is provided with the positioning pin, the upper wheel seat is provided with the clamping groove, and the positioning pin and the clamping groove are used for limiting the guide wheel.

8. A rigid contact wire milling device according to claim 7, characterized in that: The end of the milling cutter mounting seat close to the driving wheel assembly is also provided with a hair dryer.

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