Rigid contact line milling and grinding equipment

Abstract

The invention discloses rigid contact line milling and grinding equipment, and belongs to the field of rail milling and grinding equipment. The equipment 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 scrap iron collecting assembly. The milling cutter seat automatic lifting assembly is installed in the middle of the main frame body, the driving wheel and the driven wheel assembly are arranged on the front side and the rear side of the main frame body respectively, the milling cutter assembly is installed on the milling cutter seat automatic lifting assembly, and the laser distance sensor and the automatic lifting adjusting assembly guarantee the same cutting amount of rigid contact lines with different abrasion widths. The guide wheel assembly is matched with the driving wheel and the driven wheel to roll and be fixed above the driving wheel and the driven wheel. Monitoring assemblies are arranged on the front and rear sides of the equipment to monitor the milling condition, and scrap iron collecting assemblies are arranged on the front and rear sides of the milling cutter assembly and the wheel assembly to collect scrap iron. The equipment can solve many problems of an existing grinding scheme, such as high labor cost, incomplete grinding, uneven treatment, poor abrasion and the like, and has a wide application prospect.

Description

Technical Field

[0001] The invention belongs to the field of rail milling equipment, and in particular relates to a rigid contact line milling equipment. Background Art

[0002] Since the rigid contact network was introduced from abroad to Guangzhou Metro Line 2 in 2003, it has been widely used in major cities due to its simple structure, easy maintenance and good performance. However, in actual operation, the rigid contact line has a high and uneven wear rate and the carbon slide plate of the electric passenger car pantograph has irregular wear, which worsens the pantograph-net relationship and affects the safe operation of the subway. Grinding the rigid contact line is an effective disposal measure. Currently, there are two solutions: manual sandpaper grinding and electric equipment with grinding wheels. Manual sandpaper grinding is fine and has low consumables cost, but it requires a lot of manpower, high work intensity, low efficiency and safety hazards. Electric equipment with grinding wheels improves the degree of automation and efficiency to a certain extent, but it has the disadvantages of insufficient stability of the driving mode of the running parts, incomplete grinding of the bottom plane only, poor handling of uneven wear, and unreasonable processing due to assembly problems of the rigid contact line and the busbar, which can easily cause serious wear. Summary of the invention

[0003] The purpose of the present invention is to provide a rigid contact line milling device, aiming to solve the problems existing in the background technology. To achieve the above purpose, the technical solution adopted by the present invention is:

[0004] A rigid contact line milling and grinding device comprises 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 an iron chip collecting 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 and rear sides 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 and grinding the rigid contact line on the subway or train track, and the guide wheel assembly is installed on the driving wheel and the driven wheel assembly. At the top, the guide assembly is used to cooperate 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 ensures that the rigid contact lines with different wear widths achieve the same cutting amount to mill the rigid contact lines through the laser distance sensor on the driving wheel assembly and the automatic lifting and adjusting assembly of the milling cutter. The front and rear sides of the milling cutter assembly and the driven wheel assembly are also equipped with iron chip collection assemblies. The iron chip collection assembly is used to collect iron chips from the milling cutter assembly when milling the rigid contact line. The front and rear sides of the main frame are provided with monitoring assemblies. The monitoring assemblies are used to monitor the situation of the equipment milling the rigid contact line in real time.

[0005] Preferably, the main frame assembly includes a base plate, side plates, a mounting plate, linear bearings and a connecting shaft. Side plates are installed on the left and right sides of the base. An inwardly extending integral mounting plate is installed on the top of the side plate. The mounting plate is used to fix the guide wheel assembly. Connecting shafts are also installed on the front and rear sides of the side plates. The monitoring assembly is installed on the connecting shaft. Four linear bearings are arranged in the middle of the base. The linear bearings are parallel to each other. A milling cutter seat automatic lifting assembly is arranged between the linear bearings. The linear bearings pass through the base and are connected to the milling cutter seat automatic lifting assembly. The linear bearings are used to assist the milling cutter seat automatic lifting assembly in connecting and lifting.

[0006] Preferably, the automatic lifting assembly of the milling cutter seat includes a milling cutter mounting seat, a first spring, a screw and a mechanical adjustment mechanism of the milling cutter seat. The mechanical adjustment mechanism of the milling cutter seat is installed between linear bearings. The head of the mechanical adjustment mechanism of the milling cutter seat is installed with the milling cutter mounting seat. The linear bearing passes through the base and is connected with the milling cutter mounting seat. A first spring is arranged between the mechanical adjustment mechanism of the milling cutter seat and the milling cutter mounting seat. The first spring is used to enable the milling cutter assembly to fit tightly with the rigid contact line. A screw is arranged inside the mechanical adjustment mechanism of the milling cutter seat. The screw is used for the elastic deformation of the spring to control the lifting and lowering of the milling cutter mounting seat.

[0007] Preferably, the milling cutter assembly includes a milling cutter, a milling cutter fixed 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 dividing plate, an adjustment motor, a zero calibration pointer, a zero point laser limit switch and a height limiting wheel (eccentric wheel), the milling cutter is installed inside the milling cutter mounting seat through the milling cutter fixed shaft, the milling cutter motor mounting seat is installed on the left side of the milling cutter mounting seat, the milling cutter motor mounting seat is installed on the milling cutter motor mounting seat, the milling cutter fixed shaft passes through the milling cutter mounting seat and is installed inside the milling cutter motor mounting seat, and the motor shaft of the milling cutter motor is installed on the milling cutter Inside the motor base, the milling cutter motor shaft is connected to the milling cutter fixed shaft through a first coupling, the first driving shaft and the first driven shaft are respectively installed on the front and rear sides of the milling cutter fixed shaft, a limited height wheel (eccentric wheel) is arranged in the middle of the first driving shaft and the first driven shaft, a synchronous belt is installed on the first driving shaft and the first driven shaft, a zeroing pointer is arranged at the end of the first driving shaft, a dividing plate is arranged inside the zeroing pointer, an adjustment motor is arranged inside the dividing plate, the adjustment motor is used to drive the first driving shaft to rotate, and a zero point laser limit switch is installed on the rear side of the zeroing pointer.

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

[0009] Preferably, the driving wheel assembly includes a driving wheel, a driving wheel fixed 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, a floating base is installed on the top of the eccentric structure, the floating base and the eccentric structure assembly are provided with a second spring, the driving wheel is installed on the inside of the floating base through the driving wheel fixed 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 fixed shaft passes through the floating base and is connected to the motor shaft of the driving wheel motor through the second coupling, a laser distance sensor is installed on the floating base, the driving wheel motor is used to drive the driving wheel through the coupling, and the driving wheel assembly and the driven wheel assembly are the same except for the driving wheel motor and the driving wheel motor shaft fixing seat structure.

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

[0011] Preferably, the guide wheel assembly includes an upper wheel seat, a guide wheel, a clamping shaft, a third spring, a positioning pin and a clamping slot. The upper wheel seat is mounted on a mounting plate. A third spring is also provided on the clamping shaft. The third spring is used for automatic return of the guide wheel. The guide wheel is mounted on the upper wheel seat through the clamping shaft. A positioning pin is provided on the clamping shaft. A clamping slot is provided on the upper wheel seat. The positioning pin and the clamping slot are used for limiting the guide wheel.

[0012] Beneficial effects of the present invention:

[0013] 1. The use of electrical automation equipment instead of manual grinding greatly improves the work efficiency. Traditional manual sandpaper grinding requires a lot of manpower, has high work intensity and low efficiency, while this equipment can automatically perform milling operations and quickly and efficiently complete the grinding task of rigid contact lines. At the same time, it avoids the safety hazards caused by manual grinding, such as the burrs generated by the rigid contact line scratching the operator and the metal particles and dust generated during the grinding process damaging the health of the operator.

[0014] 2. In view of the problem of insufficient stability of the driving mode of the walking parts of the current rigid contact line grinding equipment, the present invention designs two driving wheels and driven wheels with a V-shaped structure. The driving wheel and the driven wheel are installed on an independent floating base, and a spring is installed below. The eccentric structure below the spring can be adjusted to release the spring force to apply to the driving wheel and the driven wheel, so that the driving wheel and the driven wheel are pressed against the V-shaped structure below the rigid contact line, thereby firmly pressing the entire milling equipment against the bus. This design ensures the stability of the milling equipment during operation, greatly improves the grinding accuracy, and avoids the situation where the equipment deviates from the correct grinding path due to shaking during the forward and backward movement.

[0015] 3. The present invention replaces the ordinary flat milling cutter with a shaped arc milling cutter, realizing comprehensive grinding of the rigid contact line. The rigid contact line grinding equipment on the market usually only grinds the bottom plane, while the present equipment can grind and repair the side edges of the rigid contact line, ensuring that all parts of the rigid contact line can be fully processed, improving the quality and effect of grinding.

[0016] 4. Aiming at the problem of unreasonable processing of rigid contact wires at different positions by the equipment, the present invention realizes the function of automatic feed adjustment by designing a height limiting wheel (eccentric wheel) in conjunction with a stepping motor and a laser distance sensor. The milling cutter height can be adjusted dynamically to ensure that the same cutting amount is achieved for the rigid contact wires with different wear widths. The rigid contact wires that are relatively close to the reference plane can be effectively processed, and the rigid contact wires that are relatively far from the reference plane will not be over-processed, thus avoiding severe wear of the rigid contact wires, ensuring that the rigid contact wires can be used normally, and extending the service life of the rigid contact wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An overall schematic diagram provided for an embodiment of the present invention;

[0018] Figure 2 An overall schematic diagram provided for an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of a local structure provided by an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of the main frame assembly provided by an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a driving wheel assembly provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the structure of a milling cutter assembly according to an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the automatic lifting assembly of the milling cutter seat according to an embodiment of the present invention;

[0024] Figure 8 It is a schematic structural diagram of a guide wheel assembly according to an embodiment of the present invention.

[0025] Among them, the reference numerals in the figure are:

[0026] 1. Main frame assembly; 11. Bottom plate; 12. Side plate; 13. Mounting plate; 14. Linear bearing; 15. Connecting shaft; 2. Driving wheel assembly; 21. Driving wheel; 22. Driving wheel fixed shaft; 23. Floating base; 24. Second spring; 25. Eccentric structure; 26. Driving wheel motor shaft fixing seat; 27. Second coupling; 28. Driving wheel motor; 3. Driven wheel assembly; 4. Milling cutter assembly; 401. Milling cutter; 402. Milling cutter fixed shaft; 403. Milling cutter motor mounting seat; 404. Milling cutter motor; 405. First coupling; 406. First driving shaft; 407. First driven shaft; 408. Synchronous belt; 409. Indexing plate; 410. Adjustment motor; 411. Zeroing pointer; 412. Zero point laser limit switch; 413. Height limiting wheel (eccentric wheel); 5. Automatic lifting assembly of milling cutter seat; 51. Milling cutter mounting seat; 52. First spring; 53. Screw; 54. Mechanical adjustment mechanism of milling cutter seat; 6. Guide wheel assembly; 61. Upper wheel seat; 62. Guide wheel; 63. Clamping shaft; 64. Positioning pin; 65. Clamping slot; 66. Third spring; 7. Laser distance sensor; 8. Monitoring assembly; 9. Iron chip collection assembly; 91. Iron chip baffle; 92. Blower; 93. Iron chip box. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein are positional relationships with reference to the accompanying drawings.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0031] like Figures 1 to 8 As shown, an embodiment of the present invention provides a rigid contact line milling and grinding device, including a main frame assembly 1, a driving wheel assembly 2, a driven wheel assembly 3, a milling cutter assembly 4, a milling cutter seat automatic lifting assembly 5, a guide wheel assembly 6, a laser distance sensor 7, a monitoring assembly 8 and an iron chip collecting assembly 9, the milling cutter seat automatic lifting assembly 5, the guide wheel assembly 6, the driving wheel assembly 2, and the driven wheel assembly 3 are all installed on the main frame assembly 1, the milling cutter seat automatic lifting assembly 5 is installed in the middle of the main frame assembly 1, the driving wheel assembly 2 and the driven wheel assembly 3 are respectively installed on the front and rear sides of the milling cutter seat automatic lifting assembly 5, the milling cutter assembly 4 is installed on the milling cutter seat automatic lifting assembly 5, the milling cutter assembly 4 is used for milling the rigid contact line on the subway or train track, and the guide wheel assembly 6 is installed on the driving wheel 21 and above the driven wheel assembly 3, the guide assembly is used to cooperate with the front and rear rolling of the driving wheel assembly 2 and the driven wheel assembly 3 and is fixed on the rigid contact line frame, the laser distance sensor 7 is installed on the driving wheel assembly 2, and the milling cutter assembly 4 automatically lifts and lowers the adjustment assembly through the laser distance sensor 7 on the driving wheel assembly 2 and the milling cutter 401 to ensure that the rigid contact lines with different wear widths achieve the same cutting amount to mill the rigid contact lines, and the front and rear sides of the milling cutter assembly 4 and the driven wheel assembly 3 and the driving wheel assembly 2 are also equipped with iron chip collection assemblies 9, and the iron chip collection assemblies 9 are used to collect iron chips from the milling cutter assembly 4 when milling the rigid contact lines, and the front and rear sides of the main frame are provided with monitoring assemblies 8, and the monitoring assemblies 8 are used to monitor the situation of the equipment milling the rigid contact lines in real time.

[0032] In the embodiment, the main frame assembly includes a base plate 11, a side plate 12, a mounting plate 13, a linear bearing 14 and a connecting shaft 15. The side plates 12 are installed on the left and right sides of the base. The top of the side plate 12 is installed with an inwardly extending integral mounting plate 13. The mounting plate 13 is used to fix the guide wheel assembly 6. The front and rear sides of the side plate 12 are also installed with a connecting shaft 15. 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. A milling cutter seat automatic lifting assembly 5 is arranged between the linear bearings 14. The linear bearings 14 pass through the base and are connected to the milling cutter seat automatic lifting assembly 5. The linear bearings 14 are used to assist the milling cutter seat automatic lifting assembly 5 in connecting and lifting.

[0033] In the embodiment, the automatic lifting assembly 5 of the milling cutter seat includes a milling cutter mounting seat 51, a first spring 52, a screw 53 and a milling cutter seat mechanical adjustment mechanism 54. The milling cutter seat mechanical adjustment mechanism 54 is installed between the linear bearings 14. The head of the milling cutter seat mechanical adjustment mechanism 54 is installed with the milling cutter mounting seat 51. The linear bearing 14 passes through the base and is connected to the milling cutter mounting seat 51. A first spring 52 is arranged between the milling cutter seat mechanical adjustment mechanism 54 and the milling cutter mounting seat 51. The first spring 52 is used to enable the milling cutter assembly 4 to fit closely with the rigid contact line. A screw 53 is arranged inside the milling cutter seat mechanical adjustment mechanism 54. The screw 53 is used for the elastic deformation of the spring to control the lifting and lowering of the milling cutter mounting seat 51.

[0034] In the embodiment, the milling cutter assembly 4 includes a milling cutter 401, a milling cutter fixed 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 dividing plate 409, an adjustment 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 inside the milling cutter mounting seat 51 through the milling cutter fixed shaft 402, the milling cutter motor mounting seat 403 is installed on the left side of the milling cutter mounting seat 51, the milling cutter motor mounting seat 403 is installed with the milling cutter motor 404, the milling cutter fixed shaft 402 passes through the milling cutter mounting seat 51 and is installed inside the milling cutter motor mounting seat 403, and the motor shaft of the milling cutter motor 404 is installed Inside the milling cutter motor 404 seat, the milling cutter motor 404 shaft is connected to the milling cutter fixed shaft 402 through a first coupling 405, and the first driving shaft 406 and the first driven shaft 407 are respectively installed on the front and rear sides of the milling cutter fixed shaft 402, and a limited height wheel (eccentric wheel) 413 is arranged in the middle of the first driving shaft 406 and the first driven shaft 407, and a synchronous belt is installed on the first driving shaft 406 and the first driven shaft 407, and a zeroing pointer 411 is arranged at the end of the first driving shaft 406, and a dividing plate 409 is arranged inside the zeroing pointer 411, and an adjustment motor 410 is arranged inside the dividing plate, and the adjustment motor 410 is used to drive the first driving shaft 406 to rotate, and a zero point laser limit switch 412 is installed on the rear side of the zeroing pointer 411.

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

[0036] In the embodiment, the driving wheel assembly 2 includes a driving wheel 21, a driving wheel fixed 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, and the floating base 23 is installed on the top of the eccentric structure 25. The floating base 23 and the eccentric structure 25 assembly are provided with a second spring 24. The driving wheel 21 is installed inside the floating base 23 through the driving wheel fixed shaft 22, and 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 fixed shaft 22 passes through the floating base 23 and is connected to the motor shaft of the driving wheel motor 28 through the second coupling 27. The floating base 23 is installed with a laser distance sensor 7. The driving wheel motor 28 is used to drive the driving wheel 21 through the coupling. The driving wheel assembly 2 and the driven wheel assembly 3 have the same structure except for 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 polishing wheels, and the driving wheel 21 and the driven wheel are V-shaped structures.

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

[0039] How it works

[0040] Equipment installation and positioning

[0041] First, adjust the spring 24 through the eccentric structure 25 so that the floating base 23 is in the lowest position; adjust the first spring 52 through the screw 53 so that the milling cutter assembly 4 is in the lowest position. Then place the main frame assembly 1 in a suitable working position through the bottom plate 11 at the bottom of the side plate 12, so that the equipment is located near the rigid contact line of the subway or train track. Then lift the guide wheel assembly 6 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 90 degrees by pressing the spring 61 through the clamping shaft 63 and then releasing the spring. The upper limit pin 64 on the clamping shaft 63 cooperates with the clamping groove 65 on the guide wheel assembly 6 to achieve the limit of the guide wheel 62, ensuring that the guide wheel 62 can stably roll on the rigid contact line frame, thereby cooperating with the driving wheel assembly 2 and the driven wheel assembly 3 to achieve the initial positioning and stable placement of the equipment on the rigid contact line.

[0042] Operation of driving wheel and driven wheel

[0043] The driving wheel motor 28 is started, and the driving wheel fixed shaft 22 is driven to rotate through the second coupling 27, thereby rotating the driving wheel 21. The driving wheel 21 adopts a nylon polishing wheel and has a V-shaped structure. Its V-shaped structure can fit tightly against the rigid contact line, and the friction generated during rotation drives the entire device to move along the rigid contact line. At the same time, the driven wheel assembly 3 (which has the same structure as the driving wheel assembly 2 except for the driving wheel motor 28 and the driving wheel motor shaft fixing seat 26) plays the role of a follower and auxiliary support during the movement of the device, ensuring that the device runs smoothly on the rigid contact line. The eccentric structure 25 is installed on the base, and the floating base 23 on the top is connected to 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 a stable driving force.

[0044] Milling action of the milling cutter assembly

[0045] The milling cutter motor 404 is started, and its 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 made of diamond cutter material. The arc-shaped design can fit the shape of the rigid contact line for comprehensive milling. The diamond material ensures the hardness and wear resistance of the milling cutter, and can effectively mill the rigid contact line.

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

[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 rigid contact line wears differently and causes the distance to change, 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 and rear sides of the milling cutter fixed shaft 402 through a synchronous belt transmission according to the received signal, and utilizes the eccentric action of the first driving shaft 406 and the first driven shaft 407 to elastically deform the spring 52 in the spring adjustment shaft 54, thereby adjusting the lifting height of the milling cutter mounting seat 5. The motor 410 can drive the first drive shaft 406 to rotate, and cooperate with the zeroing pointer 411 and the laser limit 412 to achieve precise zeroing of the milling cutter, ensuring that the height limiting wheel (eccentric wheel) 413 is at the lowest position. Before preparing for the operation, the height limiting wheel (eccentric wheel) 413 is adjusted to the set highest value through the motor 410, so that the milling cutter assembly 4 is at the lowest position, away from the contact line, thereby ensuring that the milling cutter is not damaged when it starts to rotate.

[0048] The spring adjustment shaft 54 ​​is installed between the linear bearings 14, and the linear bearings 14 pass through the base and are connected to the milling cutter mounting seat 51, which assists the milling cutter mounting seat 51 to achieve smooth lifting and lowering, ensuring that the milling cutter 401 and the rigid contact line always maintain a suitable cutting distance, thereby achieving that rigid contact lines with different wear widths can obtain the same cutting amount.

[0049] Iron chips collection and monitoring guarantee

[0050] During the process of the milling cutter assembly 4 milling the rigid contact line, the generated iron chips are isolated by the iron chip baffle assembly 9 installed on the front and rear sides of the milling cutter assembly 4 and the driven wheel assembly 3 and the driving wheel assembly 2. The iron chips are blown to the iron chip baffle 92 by the blower 91 on the iron chip collection assembly 9, and then automatically fall into the iron chip box 93 to prevent the iron chips from splashing and affecting the equipment and working environment. At the same time, the monitoring assembly 8 installed on the connecting shaft 15 of the main frame assembly 1 monitors the equipment milling the rigid contact line in real time, including the milling position, milling depth, milling surface quality, etc. The operator can adjust the equipment parameters or handle abnormal situations in time according to the monitoring information to ensure the safety and quality of the milling operation. The above implementation methods are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A rigid contact line milling equipment, characterized in that: It includes 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 an iron chip collecting 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 and rear sides 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 rigid contact lines on subway or train tracks. The guide wheel assembly is installed above the driving wheel and the driven wheel assembly. The guide assembly is used for In cooperation with the front and rear rolling of the driving wheel assembly and the driven wheel assembly and being fixed on the rigid contact line frame, the laser distance sensor is installed on the driving wheel assembly, and the milling cutter assembly ensures that the rigid contact lines with different wear widths achieve the same cutting amount to mill the rigid contact lines through the laser distance sensor on the driving wheel assembly and the automatic lifting and adjusting assembly of the milling cutter. The front and rear sides of the milling cutter assembly and the driven wheel assembly are also equipped with the iron chip collection assembly, which is used to collect iron chips from the milling of the rigid contact line by the milling cutter assembly. The front and rear sides of the main frame are provided with the monitoring assembly, which is used to monitor the situation of the equipment milling the rigid contact line in real time.

2. A rigid contact line milling device according to claim 1, characterized in that: The main frame assembly includes a base plate, side plates, a mounting plate, linear bearings and a connecting shaft. The side plates are installed on the left and right sides of the base, and the top of the side plate is installed with the mounting plate that extends inward and is integrally formed. The mounting plate is used to fix the guide wheel assembly. The connecting shaft is also installed on the front and rear sides of the side plate. The monitoring assembly is installed on the connecting shaft. Four linear bearings are arranged in the middle of the base. The linear bearings are parallel to each other. The milling cutter seat automatic lifting assembly is arranged between the linear bearings. The linear bearing passes through the base and is connected to the milling cutter seat automatic lifting assembly. The linear bearing is used to assist the milling cutter seat automatic lifting assembly in connecting and lifting.

3. A rigid contact line milling device according to claim 2, characterized in that: The automatic lifting assembly of the milling cutter seat includes a milling cutter mounting seat, a first spring, a screw and a mechanical adjustment mechanism of the milling cutter seat. The mechanical adjustment mechanism of the milling cutter seat is installed between the linear bearings. The head of the mechanical adjustment mechanism of the milling cutter seat is installed with the milling cutter mounting seat. The linear bearing passes through the base and is connected with the milling cutter mounting seat. The first spring is arranged between the mechanical adjustment mechanism of the milling cutter seat and the milling cutter mounting seat. The first spring is used to enable the milling cutter assembly to fit tightly with the rigid contact line. The screw is arranged inside the mechanical adjustment mechanism of the milling cutter seat. The screw is used for the elastic deformation of the spring to control the lifting and lowering of the milling cutter mounting seat.

4. A rigid contact line milling device according to claim 3, characterized in that: The milling cutter assembly includes a milling cutter, a milling cutter fixed 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 dividing plate, an adjustment motor, a zero calibration pointer, a zero point laser limit switch and a height limiting wheel. The milling cutter is installed inside the milling cutter mounting seat through the milling cutter fixed shaft, the milling cutter motor mounting seat is installed on the left side of the milling cutter mounting seat, the milling cutter motor mounting seat is installed on the milling cutter motor mounting seat, the milling cutter fixed shaft passes through the milling cutter mounting seat and is installed inside the milling cutter motor mounting seat, the motor shaft of the milling cutter motor is installed inside the milling cutter motor seat, and the The milling cutter motor shaft is connected to the milling cutter fixed shaft through the first coupling, the first driving shaft and the first driven shaft are respectively installed on the front and rear sides of the milling cutter fixed shaft, the height limiting wheel is arranged in the middle of the first driving shaft and the first driven shaft, the synchronous belt is installed on the first driving shaft and the first driven shaft, a zeroing pointer is arranged at the end of the first driving shaft, a dividing plate is arranged inside the zeroing pointer, the adjusting motor is arranged inside the dividing plate, the adjusting motor is used to drive the first driving shaft to rotate, and the zero point laser limit switch is installed on the rear side of the zeroing pointer.

5. The rigid contact wire milling equipment according to claim 4, characterized in that: The milling cutter is an arc-shaped milling cutter, and the milling cutter is made of diamond tool material.

6. A rigid contact line milling device according to claim 5, characterized in that: The driving wheel assembly comprises a driving wheel, a driving wheel fixed 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 floating base is installed on the top of the eccentric structure, the floating base and the eccentric structure assembly are provided with the second spring, the driving wheel is installed inside the floating base through the driving wheel fixed shaft, the driving wheel motor shaft fixing seat is installed on the outside of the floating base, the driving wheel motor is installed on the driving wheel motor shaft fixing seat, the driving wheel fixed shaft passes through the floating base and is connected to 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 to drive the driving wheel through the coupling, and the driving wheel assembly and the driven wheel assembly are the same except for the driving wheel motor and the driving wheel motor shaft fixing seat.

7. A rigid contact wire milling device according to claim 5 or 6, 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.

8. The rigid contact wire milling equipment according to claim 7, characterized in that: The guide wheel assembly includes an upper wheel seat, a guide wheel, a clamping shaft, a third spring, a positioning pin and a clamping slot. The upper wheel seat is mounted on the mounting plate, and the guide wheel is mounted on the upper wheel seat through the clamping shaft. The clamping shaft is also provided with the third spring, and the third spring is used for automatic return of the guide wheel. The clamping shaft is provided with the positioning pin, and the clamping slot is provided on the upper wheel seat. The positioning pin and the clamping slot are used for limiting the guide wheel.

9. The rigid contact wire milling equipment according to claim 7, characterized in that: A blower is also provided at one end of the milling cutter mounting seat close to the driving wheel assembly.

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