A grinding mechanism applied to a rail grinder

Abstract

The application discloses a polishing mechanism applied to a rail polishing vehicle, comprising a polishing vehicle body and polishing mechanism bodies arranged on both sides of the polishing vehicle body and used for polishing rails, wherein the polishing mechanism body comprises: multiple polishing frames symmetrically arranged on both sides of the polishing vehicle body; multiple polishing units correspondingly arranged on the polishing frames; and an adjusting unit arranged between the polishing units and the polishing frames. Through the conversion arrangement of the multiple polishing units, the polishing abrasive wheels can be quickly replaced, so that the influence of the increase of polishing time caused by the replacement of the polishing abrasive wheels is reduced in the polishing operation. Meanwhile, through the arrangement of the adjusting mechanism, the polishing abrasive wheels in the polishing units and different surfaces of the rails are always in vertical contact, so that each polishing unit can be used for polishing the different surfaces of the rails located in the vertical angle of the contact surface, thereby improving the applicability and rapid adjustment of the polishing units.

Description

Technical Field

[0001] This invention relates to the field of railway track technology, specifically a grinding mechanism applied to a rail grinding vehicle. Background Technology

[0002] Steel rails are generally used as the road surface for railcars. When they are first laid and during long-term use, they need to be ground to prevent excessive slippage after installation and oxidation and corrosion over time, so as to increase their service life. When grinding steel rails, the top surface and the curved surfaces on both sides are usually ground.

[0003] Currently, when grinding long-distance rails, a single set of grinding wheels is typically used. Changing these wheels takes considerable time, increasing the overall grinding time. Furthermore, when grinding flat or curved surfaces, multiple grinding mechanisms are usually employed. Since the grinding surfaces differ, each grinding mechanism is not interchangeable, leading to variations in installation. Therefore, we propose a method for faster grinding mechanism replacement and adjustment to accommodate different surfaces.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding mechanism for use in a rail grinding vehicle, so as to solve the problems mentioned in the background art, such as the grinding time being delayed due to the replacement time of the grinding wheel and the grinding mechanism being unsuitable for grinding surfaces.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding mechanism applied to a rail grinding vehicle, comprising a grinding vehicle body and grinding mechanism bodies disposed on both sides of the grinding vehicle body for grinding rails, wherein the grinding mechanism bodies include:

[0007] Multiple grinding frames are symmetrically arranged on both sides of the grinding vehicle body to support the grinding mechanism body;

[0008] Multiple grinding units are set on the grinding frame accordingly;

[0009] An adjustment unit, located between the grinding unit and the grinding frame, is used to adjust the position of the grinding unit so that it can grind different positions of the rail.

[0010] Preferably, the polishing unit includes:

[0011] Multiple sets of grinding parts are arranged in an array on a grinding frame and rotated on the grinding frame via a grinding shaft. Each set of grinding parts consists of multiple grinding wheels arranged in a row on the grinding shaft.

[0012] A rotary motor, mounted on the grinding frame, provides the power to drive the grinding shaft to rotate.

[0013] The waste treatment unit is symmetrically set on both sides of the grinding wheel. It is used to collect and treat the iron filings generated when grinding the rails, as well as the harmful fumes generated by the high temperature friction during grinding, before discharging them.

[0014] By using multiple sets of rotating grinding components, the grinding wheels can be quickly replaced when they wear out or the processing effect is not satisfactory. This avoids excessive downtime caused by replacing the grinding wheels one by one, which would affect the efficiency of rail grinding.

[0015] Preferably, the waste treatment facility includes:

[0016] An absorption box is fixedly installed on the grinding frame. The inlet of the absorption box is located on the side of the grinding wheel. When the grinding wheel is grinding the rail, the flying iron filings enter the absorption box from the inlet.

[0017] The flue gas treatment unit, located at the rear of the absorption box, separates iron filings and flue gas, and filters and discharges the separated flue gas.

[0018] The iron filings discharge section is located at the inlet of the absorption box and is used to store the separated and collected iron filings and discharge them uniformly.

[0019] Preferably, the iron filings discharge section includes:

[0020] The base plate is inclinedly set at the bottom of the absorption box, with its end near the inlet of the absorption box and rotating around the absorption box, and its other end snapped into the outer wall of the absorption box.

[0021] The scraper is slidably installed on the inner wall of the absorption box on the side near the flue gas treatment section;

[0022] A rectangular slider is slidably disposed on the inner wall of the absorption tank, and the slider and the scraper are connected by a connecting plate;

[0023] Two connecting shafts are respectively fixed to the rectangular slider, the base plate, the absorption box clip, and the end side wall;

[0024] The connecting plate is rotatably mounted on two connecting shafts at both ends.

[0025] Preferably, the flue gas treatment unit includes:

[0026] The filter screen is installed on the absorption box and located at the connection between the flue gas treatment section and the iron filings discharge section. It is used to prevent iron filings from entering the flue gas treatment section and to filter out large particulate matter and dust in the flue gas.

[0027] The suction fan is located at the rear end of the filter and fixed to the absorption box to keep the flue gas treatment section under negative pressure, so as to better draw the iron filings, fumes and dust generated by grinding into the absorption box and draw the fumes into the flue gas treatment section.

[0028] An activated carbon layer, located at the rear end of the exhaust fan, is used to further treat the filtered flue gas, adsorbing toxic gases in the flue gas before discharging it.

[0029] The exhaust port is located at the rear end of the absorption box and is used to discharge the flue gas after secondary filtration.

[0030] Preferably, the adjustment unit includes:

[0031] The top tilt angle adjustment mechanism is located between the grinding frame and the grinding carriage body, and is used to adjust the tilt angle of the grinding frame;

[0032] The bottom adjustment mechanism, located between the grinding frame and the grinding carriage body, is used to adjust the contact position between the grinding wheel on the grinding frame and the rail.

[0033] Preferably, the top tilt angle adjustment mechanism includes:

[0034] The telescopic rod is rotatably mounted at one end and the middle of the grinding frame, while the other end is equipped with an adjustment motor in the vertical direction.

[0035] Sliding shafts are symmetrically arranged on both sides of the middle of the grinding frame;

[0036] The arc-shaped slide rail is fixedly installed on the grinding machine body and is used to limit the arc-shaped sliding of the sliding shaft.

[0037] Preferably, the bottom adjustment mechanism includes:

[0038] The translation rod has one end that is rotatably mounted at the lower end of the grinding frame, and the other end is fixed with a square slider.

[0039] A sliding plate is fixedly mounted on the body of the grinding machine, and the sliding plate is provided with a sliding groove for a square slider to slide on;

[0040] The power unit, located on the arc plate, is used to move the translation rod.

[0041] Preferably, the power unit is provided in two sets for synchronously driving two symmetrically arranged translation rods to move synchronously, wherein the power unit includes:

[0042] Two sets of rack plates are obliquely and symmetrically arranged at the ends of two square sliders close to each other;

[0043] Synchronous gears are positioned at the obliquely symmetrical center of two sets of rack plates and mesh with the two sets of rack plates;

[0044] The translation motor is connected to the rotation center of the synchronous gear and is used to drive the synchronous gear to rotate.

[0045] Preferably, the arc-shaped slide rail includes a straight end located in the middle and arc-shaped ends symmetrically arranged on both sides of the straight end, wherein the straight end and the arc-shaped ends are set to the magnification of the upper surface of the rail.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] This invention allows for the rapid replacement of grinding wheels through the switching configuration of multiple grinding units. This reduces the increased grinding time caused by the need to replace grinding wheels during grinding operations. At the same time, the adjustment mechanism ensures that the grinding wheels in the grinding units and different surfaces of the rail are always in perpendicular contact. This allows each grinding unit to be used for grinding different surfaces of the rail at a perpendicular angle to the contact surface, thereby improving the applicability of the grinding units and enabling rapid adjustment. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0049] Figure 2 This is a three-dimensional schematic diagram of the connection between the grinding mechanism body and the steel rail of the present invention;

[0050] Figure 3 This is a front view of the connection between the grinding mechanism body and the steel rail of the present invention;

[0051] Figure 4 This is an overall structural diagram of the grinding unit of the present invention;

[0052] Figure 5 This is a cross-sectional view of the absorption box of the grinding unit of the present invention;

[0053] Figure 6 This is a diagram showing the internal structure of the absorption box in this invention;

[0054] Figure 7 for Figure 3 Enlarged view of point A in the middle;

[0055] Figure 8 for Figure 3 Enlarged view at point B in the middle;

[0056] Figure 9 for Figure 5 Enlarged view at point C;

[0057] Figure 10 for Figure 6 Enlarged view of point D in the middle.

[0058] Reference numerals: 1-Grinding car body; 2-Grinding mechanism body; 3-Grinding frame; 4-Grinding unit; 41-Grinding component; 411-Grinding wheel; 42-Rotating motor; 43-Waste treatment mechanism; 431-Absorption box; 432-Flue gas treatment section; 4321-Filter screen; 4322-Suction fan; 4323-Activated carbon layer; 4324-Discharge hole; 433-Iron filings discharge section; 4331-Base plate; 4332-Scraper; 4333-Rectangular slider; 4 334-Connecting shaft; 4335-Connecting plate; 5-Adjusting unit; 51-Top tilt angle adjustment mechanism; 511-Telescopic rod; 512-Adjusting motor; 513-Sliding shaft; 514-Arc-shaped slide rail; 5141-Straight end; 5142-Arc-shaped end; 52-Bottom adjustment mechanism; 521-Translation rod; 522-Square slider; 523-Slide plate; 524-Power unit; 5241-Rack plate; 5242-Synchronous gear; 5243-Translation motor. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] Please see Figure 1-10 The present invention provides a technical solution: a grinding mechanism applied to a rail grinding vehicle, comprising a grinding vehicle body 1 and a grinding mechanism body 2 disposed on both sides of the grinding vehicle body 1 for grinding rails, wherein the grinding mechanism body 2 comprises:

[0061] Multiple grinding frames 3 are symmetrically arranged on both sides of the grinding carriage body 1 to support the grinding mechanism body 2;

[0062] Multiple polishing units 4 are respectively set on the polishing frame 3;

[0063] Adjustment unit 5 is located between grinding unit 4 and grinding frame 3, and is used to adjust the position of grinding unit 4 so that grinding unit 4 can grind different positions of rail.

[0064] The polishing unit 4 includes:

[0065] Multiple sets of grinding parts 41 are arranged in an array on the grinding frame 3 and rotated on the grinding frame 3 via a grinding shaft. Each set of grinding parts 41 consists of multiple grinding wheels 411 arranged in a row on the grinding shaft, and each grinding wheel 411 is arranged at a 30-degree angle to the extension direction of the rail, so as to achieve curved surface grinding by tilting the grinding wheel 411 when it is tilted and when it is in contact with the rail.

[0066] The rotating motor 42 is mounted on the grinding frame 3 and is used to drive the grinding shaft to rotate.

[0067] Waste treatment mechanism 43 is symmetrically arranged on both sides of grinding wheel 411. It is used to collect and treat the iron filings generated by grinding part 41 when grinding the rail, as well as the harmful fumes generated by high temperature friction during grinding, and then discharge them.

[0068] By rotating multiple sets of grinding components 41, the grinding wheels 411 can be quickly replaced when they wear out or the processing effect is not improved, thus avoiding excessive downtime caused by replacing each grinding wheel 411 one by one, which would affect the efficiency of rail grinding.

[0069] Additionally, the waste treatment facility 43 includes:

[0070] Absorption box 431 is fixedly installed on the grinding frame 3. The inlet of the absorption box 431 is located on the side of the grinding wheel 411. When the grinding wheel 411 grinds the rail, the flying iron filings enter the absorption box 431 from the inlet. Two sets of baffles are folded inward at the inlet of the absorption box 431 to reduce the space for iron filings and flue gas to be discharged from the inlet after entering the absorption box 431 from the inlet.

[0071] The flue gas treatment unit 432 is located at the rear of the absorption box 431, which separates iron filings and flue gas, and filters and discharges the separated flue gas.

[0072] The iron filings discharge section 433 is located at the inlet of the absorption box 431 and is used to store the separated and collected iron filings and discharge them uniformly.

[0073] Meanwhile, the iron filings discharge section 433 includes:

[0074] The base plate 4331 is inclinedly set at the bottom of the absorption box 431. It is rotatably set near the inlet end of the absorption box 431 and the other end is snapped into the outer wall of the absorption box 431.

[0075] The scraper 4332 is slidably installed on the inner wall of the absorption box 431 near the flue gas treatment section 432.

[0076] A rectangular slider 4333 is slidably disposed on the inner wall of the absorption box 431, and the slider and the scraper 4332 are connected by a connecting plate 4335.

[0077] Two connecting shafts 4334 are respectively fixed to the rectangular slider 4333, the base plate 4331 and the absorption box 431, and the end side wall;

[0078] The connecting plate 4335 is rotatably mounted at both ends to two connecting shafts 4334;

[0079] When the iron filings are discharged, the latch between the base plate 4331 and the absorption box 431 can be opened, allowing the iron filings to slide down from the opened base plate 4331. At the same time, when the base plate 4331 is opened, the rectangular slider 4333 is pulled by the connecting plate 4335, which in turn drives the scraper 4332 to slide from top to bottom, thereby removing the iron filings attached to the inner wall. Due to the length limitation of the connecting rod, the rotation angle of the base plate 4331, i.e., the maximum opening angle of the base plate 4331, can also be limited, thus facilitating the receiving box to receive the material and preventing the base plate 4331 from colliding with other components.

[0080] Meanwhile, the flue gas treatment unit 432 includes:

[0081] The filter screen 4321 is installed on the absorption box 431 and is located at the connection between the flue gas treatment section 432 and the iron filings discharge section 433. It is used to prevent iron filings from entering the flue gas treatment section 432 and to filter large particulate matter and dust in the flue gas.

[0082] The suction fan 4322 is located at the rear end of the filter screen 4321 and fixed on the absorption box 431 so that the flue gas treatment section 432 is in a negative pressure state, so as to better draw the iron filings, flue gas and dust generated by grinding into the absorption box 431 and draw the flue gas into the flue gas treatment section 432.

[0083] An activated carbon layer 4323 is located at the rear end of the suction fan 4322 and is used to further treat the filtered flue gas, so as to adsorb toxic gases in the flue gas and then discharge the flue gas.

[0084] The discharge port 4324 is located at the rear end of the absorption box 431 and is used for the discharge of flue gas after secondary filtration.

[0085] The adjustment unit 5 includes:

[0086] The top tilt angle adjustment mechanism 51 is located between the grinding frame 3 and the grinding carriage body 1, and is used to adjust the tilt angle of the grinding frame 3.

[0087] The bottom adjustment mechanism 52 is located between the grinding frame 3 and the grinding carriage body 1, and is used to adjust the contact position between the grinding wheel 411 on the grinding frame 3 and the rail.

[0088] Additionally, the top tilt angle adjustment mechanism 51 includes:

[0089] The telescopic rod 511 is rotatably mounted at one end and the middle of the grinding frame 3, and the other end is equipped with an adjustment motor 512 in the vertical direction.

[0090] Sliding shafts 513 are symmetrically arranged on both sides of the middle part of the grinding frame 3;

[0091] The arc-shaped slide rail 514 is fixedly installed on the grinding car body 1 and is used for the sliding shaft 513 to perform a limited arc-shaped sliding on it.

[0092] When adjusting the angle, the adjusting motor 512 rotates, which drives the telescopic rod 511 to rotate, thereby driving the grinding frame 3 and the grinding unit 4 on it to rotate as a whole, thus changing the contact angle between the grinding wheel 411 and the arc position on both sides of the rail.

[0093] Meanwhile, the bottom adjustment mechanism 52 includes:

[0094] The translation rod 521 has one end rotatably mounted at the lower end of the grinding frame 3, and the other end is fixedly mounted with a square slider 522.

[0095] The slide plate 523 is fixedly mounted on the grinding machine body 1, and the slide plate 523 is provided with a sliding groove for the square slider 522 to slide.

[0096] The power unit 524 is mounted on the arc plate and is used to move the translation rod 521;

[0097] When the power unit 524 moves the translation rod 521, the grinding wheel 411 can be moved to the arc position on both sides of the rail. Then, in conjunction with the top tilt angle adjustment mechanism 51, the plane tilt angle of the grinding wheel 411 can be changed so that it is in a vertical tangent position at that position, thereby better grinding the arc position on both sides of the rail.

[0098] The power unit 524 is provided in two sets for synchronously driving two symmetrically arranged translation rods 521 to move synchronously. The power unit 524 includes:

[0099] Two sets of rack plates 5241 are obliquely symmetrically arranged on the two square sliders 522, close to each other at their ends;

[0100] Synchronous gear 5242 is set on the oblique symmetrical center of two sets of rack plates 5241 and meshes with the two sets of rack plates 5241;

[0101] The translation motor 5243 is connected to the rotation center of the synchronous gear 5242 and is used to drive the synchronous gear 5242 to rotate.

[0102] Finally, the arc-shaped slide rail 514 includes a straight end 5141 located in the middle and arc-shaped ends 5142 symmetrically arranged on both sides of the straight end 5141. The straight end 5141 and the arc-shaped ends 5142 are set to the magnification of the upper surface of the rail.

[0103] When adjusting the position of the grinding unit 4, the bottom adjustment mechanism 52 should be adjusted first, and then the top tilt angle adjustment mechanism 51 should be adjusted. This will prevent hard contact friction caused by motion interference between the grinding wheel 411 and the rail when the tilt angle changes.

[0104] Meanwhile, after being adjusted by the adjustment unit 5, the straight end 5141 and the arc end 5142 of the multiple grinding units 4 are set to magnify the upper surface of the rail. This allows the grinding wheel 411 to be arranged at different inclination angles to the arc surfaces on both sides of the rail and to be tangent to the arc shape when the position is adjusted, so as to perfectly achieve curved surface grinding, improve grinding quality, and at the same time greatly enhance the applicability and adjustability of the grinding unit 4.

[0105] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0106] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding mechanism for a rail grinding vehicle, comprising a grinding vehicle body (1) and grinding mechanism bodies (2) disposed on both sides of the grinding vehicle body (1) for grinding rails, characterized in that, The grinding mechanism body (2) includes: Multiple grinding frames (3) are symmetrically arranged on both sides of the grinding car body (1) to support the grinding mechanism body (2). Multiple polishing units (4) are respectively set on the polishing frame (3); An adjustment unit (5) is set between the grinding unit (4) and the grinding frame (3) to adjust the position of the grinding unit (4) so ​​that the grinding unit (4) grinds different positions of the rail. The polishing unit (4) includes: Multiple sets of grinding parts (41) are arranged in an array on the grinding frame (3) and rotated on the grinding frame (3) via a grinding shaft. Each set of grinding parts (41) consists of multiple grinding wheels (411) arranged in a row on the grinding shaft. A rotating motor (42) is mounted on the grinding frame (3) to provide power for rotating the grinding shaft; Waste treatment mechanism (43) is symmetrically arranged on both sides of grinding wheel (411) to collect and treat the iron filings generated by grinding part (41) when grinding the rail and the harmful fumes generated by high temperature friction during grinding, and then discharge them. The adjustment unit (5) includes: The top tilt angle adjustment mechanism (51) is located between the grinding frame (3) and the grinding car body (1) and is used to adjust the tilt angle of the grinding frame (3); The bottom adjustment mechanism (52) is located between the grinding frame (3) and the grinding car body (1) and is used to adjust the contact position between the grinding wheel (411) on the grinding frame (3) and the rail. The top tilt angle adjustment mechanism (51) includes: The telescopic rod (511) is rotatably set at one end and the middle of the grinding frame (3), and the other end is equipped with an adjustment motor (512) in the vertical direction. The sliding shaft (513) is symmetrically arranged on both sides of the middle part of the grinding frame (3); The arc-shaped slide rail (514) is fixedly installed on the grinding machine body (1) and is used for the sliding shaft (513) to perform a limiting arc-shaped sliding on it; The bottom adjustment mechanism (52) includes: The translation rod (521) is rotatably mounted at one end of the lower end of the grinding frame (3), and a square slider (522) is fixedly mounted at the other end. The slide plate (523) is fixedly mounted on the grinding machine body (1), and the slide plate (523) is provided with a sliding groove for the square slider (522) to slide. The power unit (524) is mounted on the arc plate and is used to move the translation rod (521); The power unit (524) is provided in two sets for synchronously driving two symmetrically arranged translation rods (521) to move synchronously. The power unit (524) includes: Two sets of rack plates (5241) are obliquely symmetrically arranged at the ends of two square sliders (522); Synchronous gear (5242) is set on the oblique symmetrical center of two sets of rack plates (5241) and meshes with the two sets of rack plates (5241); The translation motor (5243) is connected to the rotation center of the synchronous gear (5242) and is used to drive the synchronous gear (5242) to rotate; The arc-shaped slide rail (514) includes a straight end (5141) located in the middle and arc-shaped ends (5142) symmetrically arranged on both sides of the straight end (5141).

2. The grinding mechanism for a rail grinding vehicle according to claim 1, characterized in that, The waste treatment facility (43) includes: The absorption box (431) is fixedly installed on the grinding frame (3). The inlet of the absorption box (431) is located on the side of the grinding wheel (411). When the grinding wheel (411) grinds the rail, the flying iron filings enter the absorption box (431) from the inlet. The flue gas treatment unit (432) is located at the rear of the absorption box (431) to separate iron filings and flue gas, and to filter and discharge the separated flue gas. The iron filings discharge section (433) is located at the inlet of the absorption box (431) and is used to store the separated and collected iron filings and discharge them uniformly.

3. A grinding mechanism for a rail grinding vehicle according to claim 2, characterized in that, The scrap discharge section (433) includes: The bottom plate (4331) is inclinedly set at the bottom of the absorption box (431), and is rotatably set near the inlet end of the absorption box (431) and the absorption box (431), and the other end is snapped into the outer wall of the absorption box (431); The scraper (4332) is slidably installed on the inner wall of the absorption box (431) near the flue gas treatment section (432); A rectangular slider (4333) is slidably disposed on the inner wall of the absorption box (431), and the slider and the scraper (4332) are connected by a connecting plate (4335); Two connecting shafts (4334) are respectively fixed to the rectangular slider (4333), the base plate (4331) and the absorption box (431) and the end side wall; The connecting plate (4335) is rotatably set at both ends with two connecting shafts (4334).

4. A grinding mechanism for a rail grinding vehicle according to claim 2, characterized in that, The flue gas treatment unit (432) includes: A filter screen (4321) is installed on the absorption box (431) and located at the connection between the flue gas treatment section (432) and the iron filings discharge section (433). It is used to prevent iron filings from entering the flue gas treatment section (432) and to filter large particulate matter and dust in the flue gas. A suction fan (4322) is located at the rear end of the filter (4321) and fixed on the absorption box (431) so that the flue gas treatment section (432) is in a negative pressure state, so as to better draw the iron filings, flue gas and dust generated by grinding into the absorption box (431) and draw the flue gas into the flue gas treatment section (432); An activated carbon layer (4323) is located at the rear end of the suction fan (4322) to further treat the filtered flue gas, so as to adsorb toxic gases in the flue gas and then discharge the flue gas. The discharge port (4324) is located at the rear end of the absorption box (431) and is used for the discharge of flue gas after secondary filtration.

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