Steel rail corrugation grinding machine

Abstract

The utility model relates to the technical field of steel rail maintenance devices, in particular to a steel rail corrugation grinding machine which comprises a main frame, a grinding device and a feeding device, the grinding device and the feeding device are both installed on the main frame, the grinding device comprises a grinding wheel and a main shaft, and the grinding wheel is installed at the bottom end of the main shaft; the feeding device comprises a feeding shaft, a stepping motor and a transmission assembly, the bottom end of the feeding shaft is connected with the top end of the main shaft, and the stepping motor is connected with the feeding shaft through the transmission assembly. The steel rail corrugation grinding machine aims at solving at least one technical problem related in the background technology.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail maintenance device, in particular to a rail corrugation grinder. BACKGROUND

[0002] At present, the equipment for grinding the rail corrugation position is mainly a corrugation grinder, and the mainstream driving mode is internal combustion, that is, an internal combustion corrugation grinder. The internal combustion corrugation grinder has a high grinding speed for rails and a long working time, and is suitable for long-distance grinding operation. However, the grinding feed amount thereof is controlled by a hand wheel, and such a purely manual operation mode has a high labor intensity, and long-term repeated operation is easy to cause fatigue of the operator, and requires a high operation experience of the operator, and a slight carelessness will cause over-grinding, thereby affecting the operation efficiency. The manual control also has a big disadvantage that the grinding feed precision is low, thereby affecting the grinding efficiency and the grinding quality. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to provide a rail corrugation grinder for at least one technical problem in the background art.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution:

[0005] The present application provides a rail corrugation grinder, which comprises a main frame, a grinding device and a feeding device, wherein the grinding device comprises a grinding wheel and a main shaft, the grinding wheel is installed at the bottom end of the main shaft, the feeding device comprises a feeding shaft, a stepping motor and a transmission assembly, the bottom end of the feeding shaft is connected with the top end of the main shaft, and the stepping motor is connected with the feeding shaft through the transmission assembly.

[0006] Optionally, the transmission assembly comprises a small synchronous wheel, a large synchronous wheel and a synchronous belt, the large synchronous wheel is sleeved on the feeding shaft and fixedly connected with the feeding shaft, the small synchronous wheel is sleeved on the output shaft of the stepping motor and fixedly connected with the output shaft, and the small synchronous wheel and the large synchronous wheel are connected through the synchronous belt.

[0007] The technical solution has the beneficial effects that the small synchronous wheel, the large synchronous wheel and the synchronous belt are used for power transmission between the stepping motor and the synchronous shaft, the structure is relatively simple and not easy to be damaged, and the transmission efficiency is high.

[0008] Optionally, the rail corrugation grinder further comprises a sleeve fixedly connected with the main frame, the feeding device further comprises a feeding shaft sleeve, a feeding nut and a feeding screw sleeve, the feeding shaft sleeve is sleeved outside the feeding shaft and connected with the feeding shaft through a flat position, the feeding shaft sleeve is fixedly connected with the feeding nut, the feeding nut has external threads, the feeding screw sleeve has internal threads, the feeding nut is screwed with the feeding screw sleeve, the top end of the main shaft is connected with the feeding nut, the sleeve is coaxially arranged with the main shaft, the feeding screw sleeve is sleeved outside the main shaft, the sleeve is sleeved outside the feeding screw sleeve and fixedly connected with the feeding screw sleeve.

[0009] The technical scheme has the beneficial effects that when the feeding shaft is driven by the stepping motor to rotate, the feeding shaft sleeve is synchronously rotated, the feeding shaft sleeve drives the feeding nut to rotate, the feeding nut drives the main shaft to move linearly in the axial direction of the main shaft due to the threaded connection between the feeding nut and the feeding screw sleeve and the fixed connection between the feeding screw sleeve and the sleeve, and the feeding or repositioning of the grinding wheel is realized.

[0010] Optionally, the feeding device further comprises a control box, the control box comprises a single-chip microcomputer, a feeding control button and a repositioning control button, the stepping motor, the feeding control button and the repositioning control button are in communication connection with the single-chip microcomputer.

[0011] The technical scheme has the beneficial effects that the operator can control the stepping motor to drive the grinding wheel to feed or reposition by the feeding control button and the repositioning control button on the control box.

[0012] Optionally, the feeding device further comprises a coupling, a hand wheel shaft and a hand wheel, the bottom end of the hand wheel shaft is connected with the top end of the feeding shaft through the coupling, and the top end of the hand wheel shaft is fixedly connected with the hand wheel. In this way, when the operator needs to manually feed or reposition the grinding wheel according to the site needs, the operator can still operate by hand.

[0013] Optionally, the rail corrugation grinder further comprises a sleeve fixedly connected with the main frame, the feeding device further comprises a switching handle, the sleeve is sleeved outside the coupling, the hand wheel shaft and the feeding shaft, and the switching handle is connected with the hand wheel shaft to drive the hand wheel shaft to move in the axial direction to be connected with or separated from the coupling.

[0014] The technical scheme has the beneficial effects that the switching handle can separate or connect the hand wheel shaft and the coupling, and thus determine whether the operator can feed or reposition the grinding wheel by the hand wheel.

[0015] Optionally, the rail corrugation grinder provided by the application further comprises a supporting frame device, the supporting frame device comprises a supporting frame, a rotating shaft and two first supporting wheels, the two first supporting wheels are installed on the supporting frame and arranged in a first direction, the supporting frame is connected with the main frame through the rotating shaft, the rotating shaft is parallel to the first direction, and the first direction is parallel to the rail.

[0016] The beneficial effects of the technical scheme are that when the rail is polished, if the side of the rail needs to be polished, the supporting frame can be held to rotate the main frame around the rotating shaft, so that the grinding wheel rotates around the rail by a certain angle, and the side of the rail is polished.

[0017] Optionally, the supporting frame device further comprises a supporting rod, a limiting piece, a second supporting wheel, an arc-shaped plate and a supporting seat, the supporting rod extends in a second direction, one end of the supporting rod is a first end fixed to the supporting frame, the second supporting wheel is installed on the other end of the supporting rod, one end of the arc-shaped plate is fixed to the first end, an arc-shaped hole is formed in the arc-shaped plate, the supporting seat is fixed to the main frame, and the limiting piece is threadedly connected with the supporting seat through the arc-shaped hole, and the second direction is perpendicular to the first direction.

[0018] The beneficial effects of the technical scheme are that when the rail corrugation grinder is used, the first supporting wheel can be arranged on one of the two rails parallel to each other, the second supporting wheel can be arranged on the other rail, when the arc-shaped plate is fixedly connected with the supporting seat through the limiting piece, the operator does not need to hold the supporting frame, and the first supporting wheel and the second supporting wheel can also support the entire rail corrugation grinder, when the operator holds the supporting frame and moves the arc-shaped plate relative to the supporting seat, the main frame can be rotated to adjust the angle of the grinding wheel relative to the rail.

[0019] Optionally, the supporting frame device further comprises a fixing seat, the fixing seat is fixed to the supporting frame, and the arc-shaped plate and the supporting rod are both fixed to the fixing seat.

[0020] The beneficial effects of the technical scheme are that the arc-shaped plate, the fixing seat and the supporting rod form an integral whole with good structural strength, and the strength of the supporting frame device is improved.

[0021] Optionally, the rail corrugation grinder provided in the application further comprises two row wheel assemblies, the row wheel assembly comprises a row wheel frame, a connecting plate, a support and a plurality of rollers, the length direction of the row wheel frame is parallel to the first direction, each roller is installed on the row wheel frame, and each roller is arranged in the first direction, the connecting plate is parallel to the vertical direction, the connecting plate is connected to the row wheel frame perpendicularly, the support is above the row wheel frame, one end of the support is connected to the connecting plate, the other end of the support is connected to the row wheel frame, the two row wheel assemblies are respectively located at the two ends of the main frame in the first direction, and the connecting plate is fixed to the main frame.

[0022] The technical scheme has the beneficial effects that the two row wheel supports can support the rail corrugation grinder.

[0023] The technical scheme provided in the application can achieve at least one of the following beneficial effects:

[0024] The rail corrugation grinder provided in the application drives the feed shaft through the stepping motor and the transmission assembly, and then drives the main shaft and the grinding wheel to feed or retreat through the feed shaft, so that the operator can control the main shaft and the grinding wheel to feed or retreat by operating the hand wheel, the stepping motor is used to realize the feeding or retreating of the main shaft and the grinding wheel, the labor intensity of the operator is low, the feeding or retreating speed of the main shaft and the grinding wheel is fast, the work efficiency is improved, the stepping motor is used to control the amount of feeding or retreating of the main shaft and the grinding wheel, and the polishing precision is improved.

[0025] The additional technical features and advantages of the application will be more apparent in the following description or can be understood through the specific implementation of the application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the specific embodiments of the application, the following will briefly introduce the drawings needed in the description of the specific embodiments. Obviously, the drawings in the following description are some embodiments of the application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0027] Figure 1 Structure schematic diagram of one embodiment of the rail corrugation grinder provided in the application;

[0028] Figure 2 Structure schematic diagram of one embodiment of the rail corrugation grinder provided in the application;

[0029] Figure 3 Structure schematic diagram of one embodiment of the rail corrugation grinder provided in the application;

[0030] Figure 4 Structure diagram of an embodiment of the control box provided by the embodiment of the present application;

[0031] Figure 5 Structure diagram of an embodiment of the control system circuit of the feeding device provided by the embodiment of the present application.

[0032] Reference signs:

[0033] 01, connecting plate; 02, rotating shaft;

[0034] 03, first supporting wheel; 04, support frame;

[0035] 05, arc-shaped plate; 06, fixed seat;

[0036] 07, polishing device; 08, supporting rod;

[0037] 09, second supporting wheel; 10, roller;

[0038] 11, row wheel frame; 12, supporting piece;

[0039] 14, feeding device; 16, limiting piece;

[0040] 17, hand wheel; 18, hand wheel shaft;

[0041] 19, coupling; 20, feeding shaft;

[0042] 21, sleeve; 22, feeding shaft sleeve;

[0043] 23, feeding nut; 24, feeding screw sleeve;

[0044] 25, main shaft; 26, grinding wheel;

[0045] 27, large synchronous wheel; 28, synchronous belt;

[0046] 29, small synchronous wheel; 30, stepping motor;

[0047] 31, main frame; 32, feeding control button;

[0048] 33, LED display screen; 34, mode light;

[0049] 35, reset button; 36, start-stop button;

[0050] 37, gear button; 38, mode switching button;

[0051] 39, high-low speed button; 40, switching handle;

[0052] 41, supporting seat; 42, gear retreat control button. DETAILED DESCRIPTION

[0053] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0054] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] Wave abrasion is one of the main forms of rail abrasion, which refers to the uneven wave-shaped abrasion on the top surface of the rail, and is essentially wave-shaped crushing. With the current high-speed, heavy-load and dense transportation form of Longhai Railway, rail wave abrasion has become a common rail disease, especially in small-radius curve sections, the probability of wave abrasion is higher. When the wheel passes through the wave abrasion section, due to the unevenness of the rail surface, the wheel-rail force increases sharply, causing the train and the track to vibrate violently, which promotes the development of damage to the relevant parts of the train and the track, thereby increasing the maintenance cost. The passage of trains through the wave abrasion section causes the track to vibrate violently, which accelerates the pulverization of the ballast, causes the track bed to slurry and mud, loosens the track fastening, breaks a large number of screw and thread spikes and rail clips, and damages the sleeper and rubber pad, greatly increasing the maintenance cost of the track maintenance department. The passage of trains through the wave abrasion section produces a lot of noise, which is harmful to the residents along the railway. At the same time, this noise also affects passengers, making them feel uncomfortable. If the rail wave abrasion is severe, the impact force increases sharply when the vehicle passes through the wave peak, and the force decreases when it passes through the wave trough, which is easy to cause train derailment and rail and axle breakage, affecting the safety of train operation. Due to the unevenness of the wave abrasion rail surface, the wheel-rail adhesion is poor, which increases the wheel-rail running resistance. In addition, due to the intensified vibration of the wheel-rail system, the damage rate of the parts increases, and a large amount of energy is consumed, which must be provided by the locomotive traction force, thereby increasing the energy consumption. Wave abrasion not only poses a certain hazard to the safety of train operation, but also increases the workload and difficulty of the track maintenance department. Wave abrasion can be eliminated by grinding, which greatly reduces the wheel-rail dynamic load and wave abrasion. However, the existing wave grinding machine relies on a hand wheel to control the grinding feed amount, which is a purely manual operation method with high labor intensity. Long-term repeated operation can easily cause the operator to be tired, and the operation experience of the operator is required to be high. If not careful, the operator will grind too much, which affects the operation efficiency. Manual control also has the disadvantage of low grinding feed precision, which affects the grinding efficiency and quality.

[0057] As shown in Figures 1 to 3 The present application provides a rail wave grinding machine, which comprises a main frame 31, a grinding device 07 and a feeding device 14 installed on the main frame 31, the grinding device 07 comprises a grinding wheel 26 and a main shaft 25, the grinding wheel 26 is installed at the bottom end of the main shaft 25, the feeding device 14 comprises a feeding shaft 20, a stepping motor 30 and a transmission assembly, the bottom end of the feeding shaft 20 is connected with the top end of the main shaft 25, and the stepping motor 30 is connected with the feeding shaft 20 through the transmission assembly.

[0058] The rail corrugation grinder provided by the application drives the feed shaft 20 through the stepping motor 30 and the transmission assembly, and then drives the main shaft 25 and the grinding wheel 26 to feed or retreat through the feed shaft 20. The operator controls the main shaft 25 and the grinding wheel 26 to feed or retreat by operating the hand wheel. The operator's labor intensity is low by realizing the feeding or retreating of the main shaft 25 and the grinding wheel 26 through the stepping motor 30. The feeding or retreating speed of the main shaft 25 and the grinding wheel 26 is relatively fast, which improves the work efficiency. The stepping motor 30 is adopted to control the feeding or retreating amount of the main shaft 25 and the grinding wheel 26, which is beneficial to improve the polishing precision.

[0059] Optionally, the transmission assembly comprises a small synchronous wheel 29, a large synchronous wheel 27 and a synchronous belt 28. The large synchronous wheel 27 is sleeved on the feed shaft 20, and the large synchronous wheel 27 is fixedly connected with the feed shaft 20. The small synchronous wheel 29 is sleeved on the output shaft of the stepping motor 30, and the small synchronous wheel 29 is fixedly connected with the output shaft. The small synchronous wheel 29 and the large synchronous wheel 27 are connected through the synchronous belt 28. The small synchronous wheel 29, the large synchronous wheel 27 and the synchronous belt 28 are adopted to transmit power between the stepping motor 30 and the synchronous shaft, which has a relatively simple structure and is not easy to be damaged, and has a relatively high transmission efficiency. Of course, the transmission assembly can also be a gear box and other transmission structures.

[0060] Optionally, the rail corrugation grinder provided by the embodiment of the present application further comprises a sleeve 21 fixedly connected with the main frame 31, the feeding device 14 further comprises a feeding shaft sleeve 22, a feeding nut 23 and a feeding sleeve 24, which are coaxially arranged with the main shaft 25, the feeding shaft sleeve 22 is sleeved outside the feeding shaft 20, and the feeding shaft sleeve 22 and the feeding shaft 20 are connected through a flat bit, the feeding shaft sleeve 22 is fixedly connected with the feeding nut 23, the feeding nut 23 has external threads, the feeding sleeve 24 has internal threads, the feeding nut 23 is screwed with the feeding sleeve 24, the top end of the main shaft 25 is connected with the feeding nut 23, the sleeve 21 is coaxially arranged with the main shaft 25, the feeding sleeve 24 is sleeved outside the main shaft 25, the sleeve 21 is sleeved outside the feeding sleeve 24, and the sleeve 21 and the feeding sleeve 24 are fixedly connected. In this way, when the feeding shaft 20 is rotated under the driving of the stepping motor 30, the feeding shaft sleeve 22 is synchronously rotated, and the feeding shaft sleeve 22 drives the feeding nut 23 to rotate, since the feeding nut 23 is screwed with the feeding sleeve 24, and the feeding sleeve 24 is fixedly connected with the sleeve 21, the feeding nut 23 drives the main shaft 25 to move linearly in the axial direction of the main shaft 25, thereby realizing the feeding or repositioning of the grinding wheel 26. In the embodiment of the present application, preferably, the main shaft 25 and the feeding nut 23 are connected through a slotted nut to limit the relative position between the main shaft 25 and the feeding nut 23 in the axial direction of the main shaft 25, and the main shaft 25 and the feeding nut 23 are further connected through a bearing, so that the main shaft 25 can rotate relative to the feeding nut 23.

[0061] Optionally, as shown in Figure 4 and Figure 5 The feeding device 14 further comprises a control box, the control box comprises a single-chip microcomputer, a feeding control button 32 and a repositioning control button 42, the stepping motor 30, the feeding control button 32 and the repositioning control button 42 are in communication connection with the single-chip microcomputer. In this way, the operator can control the stepping motor 30 to drive the grinding wheel 26 to feed through the feeding control button 32 on the control box, and control the stepping motor 30 to drive the grinding wheel 26 to reposition through the repositioning control button 42. Of course, a reset button 35 can also be arranged on the control box to realize the resetting of the stepping motor 30 to drive the grinding wheel 26, a manual / electric switching button to realize the switching between the manual feeding and repositioning of the grinding wheel 26 and the driving of the stepping motor 30, a gear button 37 to realize the control of the rotating speed of the stepping motor 30, a high / low speed button 39, a start / stop button 36 and / or a mode switching button 38, and a mode lamp 34 is arranged on the control box; an LED display screen 33 in communication connection with the single-chip microcomputer can also be arranged on the control box, which is used to display the feeding amount and repositioning amount of the grinding wheel 26 and other information, so as to facilitate the operator to reasonably operate according to the information.

[0062] Optionally, the feeding device 14 further comprises a coupling 19, a hand wheel shaft 18 and a hand wheel 17, a bottom end of the hand wheel shaft 18 is connected with a top end of the feeding shaft 20 through the coupling 19, and a top end of the hand wheel shaft 18 is fixedly connected with the hand wheel 17. In this way, when the operator needs to manually feed or retreat the grinding wheel 26 according to the actual situation, the operator can still operate by hand.

[0063] Optionally, the rail corrugation grinding machine provided by the embodiment of the present application further comprises a sleeve 21 fixedly connected with the main frame 31, the feeding device 14 further comprises a switching handle 40, the sleeve 21 is sleeved outside the coupling 19, the hand wheel shaft 18 and the feeding shaft 20, and the switching handle 40 is connected with the hand wheel shaft 18 to drive the hand wheel shaft 18 to move in the axial direction and then be connected with or separated from the coupling 19. In this way, the switching handle 40 can be used to separate the hand wheel shaft 18 from the coupling 19 and connect the hand wheel shaft 18 with the coupling 19, so as to determine whether the operator can feed or retreat the grinding wheel 26 by operating the hand wheel 17.

[0064] Optionally, the rail corrugation grinding machine provided by the embodiment of the present application further comprises a supporting frame device, the supporting frame device comprises a supporting frame 04, a rotating shaft 02 and two first supporting wheels 03, the two first supporting wheels 03 are installed on the supporting frame 04 and arranged in a first direction, the supporting frame 04 is connected with the main frame 31 through the rotating shaft 02, the rotating shaft 02 is parallel to the first direction, and the first direction is parallel to the rail. In this way, when the rail is ground, if the side surface of the rail needs to be ground, the supporting frame 04 can be held to keep the position of the supporting frame 04 unchanged, and then the main frame 31 is rotated around the rotating shaft 02 to rotate the grinding wheel 26 around the rail by a certain angle, so that the side surface of the rail is ground. It can be understood that the two first supporting wheels 03 run on the rail to support the main frame 31, various devices installed on the main frame 31 and the supporting frame 04. The supporting frame 04 preferably comprises a handrail, and the height of the handrail is preferably greater than the height of the main frame 31 and various devices installed on the main frame 31.

[0065] Optionally, the supporting frame device further comprises a support rod 08, a limiting piece 16, a second support wheel 09, an arc-shaped plate 05 and a support base 41, the support rod 08 extends in a second direction, one end of the support rod 08 is fixed to the first end of the supporting frame 04, the second support wheel 09 is installed on the other end of the support rod 08, one end of the arc-shaped plate 05 is fixed to the first end, an arc-shaped hole is formed on the arc-shaped plate 05, the support base 41 is fixed to the main frame 31, the limiting piece 16 is threadedly connected with the support base 41 through the arc-shaped hole, and the second direction is perpendicular to the first direction. In this way, when the rail corrugation grinder is in use, the first support wheel 03 can be arranged on one of the two parallel rails, the second support wheel 09 can be arranged on the other of the two rails, when the arc-shaped plate 05 is fixedly connected with the support base 41 through the limiting piece 16, the operator does not need to hold the supporting frame 04, and the first support wheel 03 and the second support wheel 09 can also support the entire rail corrugation grinder, when the operator holds the supporting frame 04 and the arc-shaped plate 05 can move relative to the support base 41 by operating the limiting piece 16, the main frame 31 can be rotated to adjust the angle of the grinding wheel 26 relative to the rail.

[0066] Optionally, the supporting frame device further comprises a fixing base 06, the fixing base 06 is fixed to the supporting frame 04, and the arc-shaped plate 05 and the support rod 08 are both fixed to the fixing base 06. In this way, the arc-shaped plate 05, the fixing base 06 and the support rod 08 form an integral whole with good structural strength, and the strength of the supporting frame device is improved. In the embodiment of the application, preferably, the fixing base 06 is welded with the supporting frame 04 all around. Preferably, a scale is arranged on the top of the arc-shaped plate 05.

[0067] Optionally, the rail corrugation grinder provided in the embodiment of the application further comprises two row wheel assemblies, the row wheel assembly comprises a row wheel frame 11, a connecting plate 01, a support piece 12 and a plurality of roller wheels 10, the length direction of the row wheel frame 11 is parallel to the first direction, each roller wheel 10 is installed on the row wheel frame 11, and each roller wheel 10 is arranged in the first direction, the connecting plate 01 is parallel to the vertical direction, the connecting plate 01 is perpendicularly connected to the row wheel frame 11, the support piece 12 is located above the row wheel frame 11, one end of the support piece 12 is connected to the connecting plate 01, the other end of the support piece 12 is connected to the row wheel frame 11, the two row wheel assemblies are respectively located at the two ends of the main frame 31 in the first direction, and the connecting plate 01 is fixed to the main frame 31. In this way, the rail corrugation grinder can be supported by the two row wheel frames. In the embodiment of the application, the support rod is preferably a shock-absorbing structure.

[0068] In the embodiment of the application, the lower end of the main shaft 25 is internally threaded and threadedly connected with the grinding wheel 26, and clockwise rotation ensures that the grinding wheel 26 is ground tighter and tighter.

[0069] The side wall of the main shaft 25 has a key groove, which is coaxially connected with the shaft sleeve of the main shaft 25, and the radial rotation of the main shaft 25 is ensured by the key, while the shaft sleeve is bolted with the belt pulley, and the radial rotation of the main shaft 25 can be realized by the belt drive system;

[0070] The upper end of the main shaft 25 is axially fixed with the feed shaft seat through the slotted nut and bearing and other components, that is, the main shaft 25 and the feed shaft seat can move up and down at the same time; the feed shaft seat is externally threaded, the feed nut 23 is internally threaded, and the feed shaft seat moves up and down in the feed nut 23 through the thread; the upper end of the feed shaft seat is provided with a threaded hole, and the feed shaft sleeve 22 is fixed by a bolt, the upper end of the feed shaft sleeve 22 is provided with a flat hole, and the lower end of the feed shaft 20 is provided with a flat part, which is inserted into the flat hole, so that the synchronous rotation of the feed shaft sleeve 22 and the feed shaft 20 is realized; that is, after rotating the hand wheel 17 or pressing the feed button, the feed shaft 20 drives the feed shaft sleeve 22, the feed shaft seat and the main shaft 25 to rotate together, and because the feed shaft seat and the feed nut 23 have a threaded relationship, they will move up and down with the thread, and the main shaft 25 will slide up and down in the key groove mentioned above, so that the feed action is realized without interfering with the radial rotation of the main shaft 25.

[0071] In the embodiments of the application, after pressing the mode switching button 38, the stepping motor 30 is powered on, and the shaft of the stepping motor 30 cannot be rotated at will, while the shaft of the stepping motor 30 is connected with the hand wheel 17 through a synchronous wheel and a synchronous belt, at this time, the hand wheel 17 cannot be rotated manually, and the feed can only be controlled by the feed control button 32 of the control panel; pressing the mode switching button 38 again, the stepping motor 30 is powered off, and the shaft of the motor can be rotated at will, at this time, the hand wheel 17 can control the feed.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A rail corrugation grinder, characterised in that, The polishing device comprises a main frame, a polishing device and a feeding device, the polishing device comprises a grinding wheel and a spindle, the grinding wheel is installed at the bottom end of the spindle, the feeding device comprises a feeding shaft, a stepping motor and a transmission assembly, the bottom end of the feeding shaft is connected with the top end of the spindle, and the stepping motor is connected with the feeding shaft through the transmission assembly.

2. A rail corrugation grinder according to claim 1, characterised in that The transmission assembly comprises a small synchronous wheel, a large synchronous wheel and a synchronous belt, the large synchronous wheel is sleeved on the feeding shaft and is fixedly connected with the feeding shaft, the small synchronous wheel is sleeved on the output shaft of the stepping motor and is fixedly connected with the output shaft, and the small synchronous wheel and the large synchronous wheel are connected through the synchronous belt.

3. The rail corrugation grinder of claim 1, wherein, The feeding device further comprises a sleeve fixedly connected with the main frame, a feeding shaft sleeve, a feeding nut and a feeding screw sleeve coaxially arranged with the spindle, the feeding shaft sleeve is sleeved outside the feeding shaft and is connected with the feeding shaft through a flat position, the feeding shaft sleeve is fixedly connected with the feeding nut, the feeding nut has external threads, the feeding screw sleeve has internal threads, the feeding nut is screwed with the feeding screw sleeve, the top end of the spindle is connected with the feeding nut, the sleeve is coaxially arranged with the spindle, the feeding screw sleeve is sleeved outside the spindle, the sleeve is sleeved outside the feeding screw sleeve and is fixedly connected with the feeding screw sleeve.

4. The rail corrugation grinder of claim 1, wherein, The feeding device further comprises a control box, the control box comprises a single-chip microcomputer, a feeding control button and a position returning control button, the stepping motor, the feeding control button and the position returning control button are in communication connection with the single-chip microcomputer.

5. The rail corrugation grinder of claim 1, wherein, The feeding device further comprises a shaft coupling, a hand wheel shaft and a hand wheel, the bottom end of the hand wheel shaft is connected with the top end of the feeding shaft through the shaft coupling, and the top end of the hand wheel shaft is fixedly connected with the hand wheel.

6. The rail corrugation grinder of claim 5, wherein, The feeding device further comprises a sleeve fixedly connected with the main frame, a switching handle, the sleeve is sleeved outside the shaft coupling, the hand wheel shaft and the feeding shaft, and the switching handle is connected with the hand wheel shaft to drive the hand wheel shaft to move axially to be connected with or separated from the shaft coupling.

7. A rail corrugating grinder according to any one of claims 1 to 6, characterised in that, The device further comprises a supporting frame device, the supporting frame device comprises a supporting frame, a rotating shaft and two first supporting wheels, the two first supporting wheels are installed on the supporting frame and are arranged in a first direction, the supporting frame is connected with the main frame through the rotating shaft, the rotating shaft is parallel to the first direction, and the first direction is parallel to the steel rail.

8. The rail corrugation grinder according to claim 7, characterized in that The supporting frame device further comprises a supporting rod, a limiting piece, a second supporting wheel, an arc-shaped plate and a supporting seat, the supporting rod extends in a second direction, one end of the supporting rod is a first end fixed to the supporting frame, the second supporting wheel is installed on the other end of the supporting rod, one end of the arc-shaped plate is fixed to the first end, an arc-shaped hole is formed in the arc-shaped plate, the supporting seat is fixed to the main frame, the limiting piece is threadedly connected with the supporting seat through the arc-shaped hole, and the second direction is perpendicular to the first direction.

9. The rail corrugation grinder of claim 8, wherein, The supporting frame device further comprises a fixing base fixed to the supporting frame, and the arc-shaped plate and the supporting rod are both fixed to the fixing base.

10. The rail corrugating grinder of claim 7 wherein, The supporting frame device further comprises two row wheel assemblies, each of which comprises a row wheel frame, a connecting plate, a supporting piece and a plurality of rollers. The length direction of the row wheel frame is parallel to the first direction, each of the rollers is installed on the row wheel frame, and each of the rollers is arranged in the first direction. The connecting plate is parallel to the vertical direction, and the connecting plate is perpendicularly connected to the row wheel frame. The supporting piece is above the row wheel frame, one end of the supporting piece is connected to the connecting plate, and the other end of the supporting piece is connected to the row wheel frame. In the first direction, the two row wheel assemblies are respectively located at the two ends of the main frame, and the connecting plate is fixed to the main frame.

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