Steel rail grinding machine

Abstract

The utility model provides a steel rail grinding machine which comprises a sliding adjusting support, a grinding head, a controller, a grinding motor, an n-shaped rotating support and a lifting adjusting mechanism, the bottom of the n-shaped rotating support is arranged on two rotating bases of the sliding adjusting support in a hinged mode, and a tilt angle sensor is fixedly arranged on the n-shaped rotating support. The lifting adjusting mechanism comprises a square frame, a first lead screw, a hand wheel, a lifting servo motor, a lifting control handle and a serial port screen, the two sides of the square frame are slidably arranged on the corresponding vertical rods in a sleeving mode, the bottom of the first lead screw is fixedly connected with the top of the square frame, and the hand wheel and the lifting servo motor are both arranged on the upper transverse plate; the grinding motor is arranged on the square frame, and the grinding head is arranged on a power output shaft of the grinding motor. The grinding machine has the function of accurately adjusting the lifting of the grinding head and also has the function of monitoring the angle in real time, so that the accurate positioning of the grinding head is favorably improved, and the grinding quality of the grinding head on a steel rail is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail maintenance, in particular to a rail grinding machine. Background Art

[0002] Rails are important infrastructure in railway transportation. Regular and irregular maintenance is required to improve the service life of rails. High-speed trains, EMUs, subways and other locomotives all use rails to guide vehicles. Therefore, rails are subject to huge pressure and impact from wheels during locomotive operation. Under such complex working conditions, rails will inevitably suffer various damages. Some of these damages come from defects in the smelting process, as well as damages that occur during transportation, construction, and use, such as wear and tear in the vertical and lateral directions, and wavy wear. These wears will increase the noise between locomotive wheels and rails, accelerate the deterioration rate between vehicle components and track components, and aggravate the further expansion of rail diseases. In order to avoid the above phenomenon, rail grinding is often used in the actual maintenance of rails. The essence of rail grinding is to cut the surface of the rail to remove the disease and restore the rail to the optimal profile.

[0003] Most of the existing rail grinders still use internal combustion engines as power to drive the grinding head, and the up and down positions of the grinding head are basically adjusted by screw transmission. When adjusting the position of the grinding head, the internal combustion engine needs to be driven to move synchronously, which makes the adjustment of the grinding head relatively cumbersome. At the same time, when the grinding head position is adjusted by the screw, the operator manually adjusts it based on work experience, and the accuracy and visualization of the adjustment amount cannot be guaranteed; further, the grinding inclination angle of the grinding head is only calibrated by a ruler. When the inclination angle of the grinding head changes under the action of external force, it is impossible to monitor the change of the inclination angle, and the change of the grinding angle affects the grinding quality. Utility Model Content

[0004] The utility model aims to provide a rail grinding machine, on which the lifting and lowering adjustment of the grinding head is carried out by a motor, the adjustment accuracy is high and visualization is achieved through a serial port screen; the inclination angle of the grinding head during the grinding process can be monitored by an inclination sensor and displayed through the serial port screen, thereby ensuring the accuracy of the inclination angle of the grinding head.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a rail grinding machine, including a sliding adjustment bracket, a grinding head, a controller, a grinding motor, a ∩-shaped rotating bracket, and a lifting adjustment mechanism. The bottoms of the two vertical rods of the ∩-shaped rotating bracket are hingedly arranged on the two rotating bases of the sliding adjustment bracket. An inclination sensor is fixedly arranged on the ∩-shaped rotating bracket. The inclination sensor is electrically connected to the controller. The lifting adjustment mechanism includes a square frame, a first lead screw, a hand wheel, a lifting servo motor, a lifting control handle, and a serial port screen. The two sides of the square frame are respectively slidably sleeved on the corresponding vertical rods. The bottom of the first lead screw is fixedly connected to the top of the square frame, and the upper part of the first lead screw passes through the upper horizontal plate of the ∩-shaped rotating bracket, the hand wheel and the lifting servo motor are both arranged on the upper horizontal plate, and the hand wheel and the lifting servo motor can independently realize the lifting and lowering drive of the first lead screw, the lifting servo motor is electrically connected to the controller, the serial port screen and the lifting control handle are electrically connected to the controller, and the lifting servo motor start and stop control switch is arranged on the lifting control handle, the grinding motor is arranged on the square frame, and the grinding head is arranged on the power output shaft of the grinding motor.

[0006] Preferably, a driving thread sleeve that cooperates with the first lead screw thread is arranged on the upper horizontal plate, and the driving thread sleeve can rotate freely relative to the upper horizontal plate. The lower end of the handwheel is fixedly connected to the driving thread sleeve, and a first gear is fixedly arranged on the outer side of the lower part of the driving thread sleeve. A second gear is arranged on the output shaft of the lifting servo motor, and the second gear is meshed with the first gear.

[0007] Furthermore, a protective ring is sleeved on the periphery of the grinding head, and two sides of the protective ring are fixedly connected to the bottom of the corresponding vertical rod through a connecting plate.

[0008] Furthermore, an angle adjustment positioning mechanism is arranged on one side of the sliding adjustment bracket, and the angle adjustment positioning mechanism includes a screw transmission mechanism, a rotating locking member, and a rotating guide plate. The box body of the screw transmission mechanism is hingedly arranged on the sliding adjustment bracket, and the rotating guide plate is fixedly connected to the corresponding vertical rod. One end of the rotating locking member is clamped and fixed in the arc guide groove of the rotating guide plate, and one end of the second screw of the screw transmission mechanism is hingedly connected to the rotating locking member.

[0009] Furthermore, an angle scale located below the rotating guide plate is fixedly arranged on the sliding adjustment bracket, and a pointer corresponding to the angle scale is arranged on the rotating guide plate.

[0010] Furthermore, the grinder also includes a track movable bracket, and support wheels are provided on both the front and rear sides of the track movable bracket, and the support wheels are used to support the track movable bracket to move on the track, and two lifting handles are provided on both the left and right sides of the track movable bracket.

[0011] Furthermore, two guide rails located at the front and rear sides of the sliding adjustment bracket are provided on the upper part of the track movable bracket, and a guide rail slide seat clamped on the corresponding guide rail is provided on the sliding adjustment bracket, and a translation adjustment mechanism for realizing the movement of the sliding adjustment bracket is provided at one end of the track movable bracket. The translation adjustment mechanism includes a third lead screw and a lead screw rotation drive mechanism. The lead screw rotation drive mechanism is fixedly arranged on the track movable bracket, one end of the third lead screw is connected to the lead screw rotation drive mechanism, and the other end is connected to one end of the sliding adjustment bracket by a threaded fitting method. The reciprocating movement of the sliding adjustment bracket is realized by the rotation of the third lead screw, and the lead screw rotation drive mechanism adopts a chain transmission method to realize the rotation drive of the third lead screw.

[0012] Furthermore, the grinder also includes a control box, a control box, and a battery. The control box is arranged on the track movable bracket, and the controller is arranged in the control box. The control box, the battery and the grinding motor are all electrically connected to the controller. A control switch for controlling the start and stop of the grinding motor is arranged on the control box.

[0013] The beneficial effects of the utility model are as follows: the utility model has a simple structure and is convenient to manufacture; the lifting servo motor has a very high output accuracy, and the transmission ratio of the first gear and the second gear remains unchanged, so that the lifting servo motor is used to realize precise control of the lifting and lowering of the first screw, and then realize precise control of the lifting and lowering of the grinding head; the encoder in the lifting servo motor can transmit the rotation parameters of the servo motor to the controller, and the controller can use the serial port screen to display the lifting distance of the first screw after processing the rotation parameters, so that it is convenient for the operator to understand the lifting distance in time and realize precise adjustment of the grinding head distance; the inclination sensor can monitor the inclination angle of the grinding head in real time, and the controller uses the monitoring data of the inclination sensor to process and finally realize the display of the inclination angle on the serial port screen, which is also conducive to the operator to observe the change of the inclination angle in real time. When the inclination angle changes, it is conducive to timely correction of the inclination angle of the grinding head; the grinding motor is used as the power source of the grinding head, which is light in weight, is conducive to the lifting and lowering of the grinding head and the convenient adjustment of the inclination angle, and is also conducive to manual handling of the entire grinder in a field construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the distribution of the lifting adjustment mechanism and the angle adjustment positioning mechanism on the sliding adjustment bracket;

[0017] Figure 3 The transmission principle diagram of the lifting servo motor driving the first lead screw to rotate;

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0019] In the figure: 1 sliding adjustment bracket, 11 rotating base, 12 guide slider, 13 supporting rod, 2 grinding head, 21 protective cover, 211 connecting plate, 3 grinding motor, 4∩-shaped rotating bracket, 41 vertical rod, 42 upper horizontal plate, 421 driving thread sleeve, 422 first gear, 51 square frame, 52 first lead screw, 53 hand wheel, 54 lifting servo motor, 541 second gear, 55 lifting control handle, 56 serial port screen, 611 transmission lead screw box, 612 second lead screw, 62 rotating locking member, 63 rotating guide plate, 631 arc guide groove, 64 angle scale, 7 track moving bracket, 71 supporting wheel, 72 lifting handle, 81 third lead screw, 82 lead screw rotation driving mechanism, 91 control box, 92 control box, 93 battery. DETAILED DESCRIPTION

[0020] The following will be combined with specific embodiments and attached Figure 1-4 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the preferred embodiments of the utility model, not all of the embodiments. Those skilled in the art can make similar modifications without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0021] The utility model provides a rail grinding machine (such as Figure 1As shown), it includes a sliding adjustment bracket 1, a grinding head 2, a controller, a grinding motor 3, a ∩-shaped rotating bracket 4, and a lifting adjustment mechanism. The bottoms of the two vertical rods 41 of the ∩-shaped rotating bracket 4 are hingedly arranged on the two rotating bases 11 of the sliding adjustment bracket 1, that is, the bottoms of the vertical rods 41 are sleeved on a supporting shaft in the rotating base 11, and the vertical rods 41 can swing freely along the circumferential direction relative to the supporting shaft. An inclination sensor 101 is fixedly arranged on the ∩-shaped rotating bracket 4, and the inclination sensor 101 is electrically connected to the controller. The inclination angle of the ∩-shaped rotating bracket 4 can be monitored in real time by using the inclination sensor 101, and the monitoring data can be transmitted to the controller. The lifting adjustment mechanism includes a square frame 51, a first wire The two sides of the square frame 51 are slidably mounted on the corresponding vertical rods 41, and the square frame 51 can slide up and down along the axial direction of the vertical rod 41 through the guiding effect of the vertical rod 41. At the same time, the square frame 51 can be synchronously driven to swing through the swing of the ∩-shaped rotating bracket 4. The bottom of the first lead screw 52 is fixedly connected to the top of the square frame 51, and the upper part of the first lead screw 52 passes through the upper horizontal plate 42 of the ∩-shaped rotating bracket 4. The handwheel 53 and the lifting servo motor 54 are both arranged on the upper horizontal plate 42, and the handwheel 53 and the lifting servo motor 54 can independently realize the first lead screw 5 2 lifting drive, in this specific embodiment, the hand wheel 53 and the lifting servo motor 54 independently realize the specific implementation method of the first lead screw 52 to lift up and down: a driving thread sleeve 421 that is threadedly matched with the first lead screw 52 is arranged on the upper cross plate 42, and the driving thread sleeve 421 can rotate freely relative to the upper cross plate 42, and the rotation of the driving thread sleeve 421 then realizes the up and down movement of the first lead screw 52, ​​the lower end of the hand wheel 53 is fixedly connected to the driving thread sleeve 421, and the rotation of the hand wheel 53 drives the driving thread sleeve 421 to rotate, a first gear 422 is fixedly arranged on the outer side of the lower part of the driving thread sleeve 421, and a second gear 541 is arranged on the output shaft of the lifting servo motor 54, and the second gear 422 is fixedly arranged on the outer side of the lower part of the driving thread sleeve 421, and a second gear 541 is arranged on the output shaft of the lifting servo motor 54, and the second gear 422 is fixedly arranged on the outer side of the lower part of the driving thread sleeve 421, and the second gear 422 is fixedly arranged on the outer side of the lower part of the driving thread sleeve 421, and the second gear 422 is fixedly arranged on the output shaft of the lifting servo motor 54 ... The wheel 541 is meshed with the first gear 422. When the lifting servo motor 54 drives the second gear 541 to rotate, the driving wire sleeve 421 is driven to rotate through the first gear 422, thereby realizing the up and down movement of the second lead screw 52. In practical applications, when the lifting servo motor 54 can work normally, the lifting servo motor 54 is selected to realize the up and down adjustment of the second lead screw 52. When there is a problem with the lifting servo motor 54, the hand wheel 53 can be used to realize the up and down adjustment of the second lead screw 52. The lifting servo motor 54 is electrically connected to the controller, and the serial port screen 56 and the lifting control handle 55 are electrically connected to the controller, and a start and stop control switch of the lifting servo motor 54 is provided on the lifting control handle 55.The lifting and stopping of the lifting servo motor 54 is conveniently controlled by the lifting control handle 55, thereby realizing the convenience of adjusting the grinding head 2 up and down; the grinding motor 3 is arranged on the square frame 51, and the grinding head 2 is arranged on the power output shaft of the grinding motor 3. The lifting servo motor 54 has a very high output accuracy, and the transmission ratio of the first gear 421 and the second gear 541 remains unchanged, so that the lifting servo motor 54 is used to realize the precise lifting and lowering control of the first screw 52, ​​and then realize the precise lifting and lowering control of the grinding head 2. The encoder in the lifting servo motor 54 can transmit the rotation parameters of the servo motor to the controller. After processing the rotation parameters, the controller can use the serial port screen 56 to realize the display of the lifting distance of the first screw 52, ​​so that the operator can timely understand the lifting distance and realize the grinding. Precise adjustment of the distance between the grinding head 2 and the grinding head 2; at the same time, the inclination sensor 101 can monitor the inclination angle of the grinding head 2 in real time, and the controller uses the monitoring data of the inclination sensor 101 to finally realize the display of the inclination angle on the serial port screen 56, which is also conducive to the operator to observe the change of the inclination angle in real time. When the inclination angle changes, it is conducive to timely correction of the inclination angle of the grinding head 2; further, during the working process of the grinding head 2, in order to minimize the harm caused by the explosion of the grinding head 2, a protective ring 21 is set on the periphery of the grinding head 2, and the two sides of the protective ring 21 are respectively fixedly connected to the bottom of the corresponding vertical rod 41 through a connecting plate 211. When adjusting the inclination angle of the grinding head 2, the synchronous inclination adjustment of the protective ring 21 is realized through the driving of the connecting plate 211.

[0022] On the basis of the above embodiment, in order to facilitate the smooth adjustment of the inclination angle of the grinding head 2, an angle adjustment positioning mechanism is provided on one side of the sliding adjustment bracket 1, and the angle adjustment positioning mechanism includes a screw transmission mechanism, a rotation locking member 62, and a rotation guide plate 63. The box body 611 of the screw transmission mechanism is hingedly provided on the sliding adjustment bracket 1, and the rotation guide plate 63 is fixedly connected to the corresponding vertical rod 41. One end of the rotation locking member 62 is clamped and fixed in the arc guide groove of the rotation guide plate 63. 631, one end of the second lead screw 612 of the lead screw transmission mechanism is hingedly connected to the rotation locking member 62. In practical application, the position of the rotation locking member 62 on the arc guide groove 631 is first adjusted, and then the rotation locking member 62 is locked on the rotation guide plate 63. Then, the second lead screw 612 is driven to perform telescopic movement by manipulating the housing of the lead screw transmission mechanism, thereby realizing the rotation of the rotation guide plate 63. The rotation of the rotation guide plate 63 drives the vertical rod 41 to rotate, and then the inclination angle of the grinding head 2 is adjusted. In practical application, the housing of the lead screw transmission mechanism adopts a worm gear transmission method to realize the drive of the second lead screw 612, and the power of the lead screw transmission mechanism is input through a hand wheel; when adjusting the inclination angle of the grinding head 2, in order to facilitate the operator to timely understand the degree of inclination, an angle scale 64 located below the rotation guide plate 63 is fixedly set on the sliding adjustment bracket 1, and a pointer corresponding to the angle scale 64 is set on the rotation guide plate 63.

[0023] In order to facilitate the smooth movement of the entire grinder on the track during the grinding process, the grinder is further provided with a track movable bracket 7, and support wheels 71 are provided on both the front and rear sides of the track movable bracket 7. The support wheels 71 are used to support the movement of the track movable bracket 7 on the track. Furthermore, in order to facilitate the flexible transportation of the grinder in the field, two lifting handles 72 are provided on both the left and right sides of the track movable bracket 7. When the track movable bracket 7 is placed on the track, in order to facilitate the relative position adjustment of the grinding head 2 and the track, two guide rails located on the front and rear sides of the sliding adjustment bracket 1 are provided on the upper part of the track movable bracket 7, and a guide rail slide 12 clamped on the corresponding guide rail is provided on the sliding adjustment bracket 1. A translation adjustment mechanism for realizing the movement of the sliding adjustment bracket 1 is provided at one end of the track movable bracket 1, and the translation adjustment mechanism includes a third lead screw 81 and a lead screw rotation drive mechanism 82. The lead screw rotation drive mechanism 82 is fixedly provided on the track movable bracket 7 One end of the third lead screw 81 is connected to the lead screw rotation driving mechanism 82, and the other end is connected to one end of the sliding adjustment bracket 1 by a threaded fitting method. The reciprocating movement of the sliding adjustment bracket 1 is realized by the rotation of the third lead screw 81. The lead screw rotation driving mechanism 82 adopts a chain transmission method to realize the rotation drive of the third lead screw 81. Specifically, the lead screw rotation driving mechanism 82 includes a handwheel, a sprocket is arranged on the handwheel, a sprocket is arranged at one end of the third lead screw 81, and a chain is arranged between the two sprockets. The rotation of the third lead screw 81 is then realized by the transmission of the chain.

[0024] In order to facilitate the operation of the grinder in a field environment without mains electricity, the grinder further includes a control box 91, a control box 92, and a battery 93. The control box 92 is arranged on the track movable bracket 7, and the controller is arranged in the control box 92. The control box 91, the battery 93, and the grinding motor 3 are all electrically connected to the controller. A control switch for controlling the start and stop of the grinding motor 3 is arranged on the control box 91. In actual application, the controller controls the power supply of the grinding motor 3 by receiving instructions from the control box 91. In order to facilitate the convenient operation of the control box 91 and the lifting control handle 55, a support rod 13 is arranged on the sliding movable bracket 1, and the control box 91 and the lifting control handle 55 are both arranged on the support rod 13.

[0025] In the present invention, "left" and "right" are relative positions used to conveniently describe positional relationships, and therefore cannot be understood as absolute positions to limit the scope of protection.

[0026] Except for the technical features described in the specification, all other technical features are known technologies to those skilled in the art.

[0027] The above description in combination with the accompanying drawings has detailed the preferred implementation modes and embodiments of the utility model, but the utility model is not limited to the above implementation modes and embodiments. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the concept of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A rail grinding machine, comprising a sliding adjustment bracket and a grinding head, characterized in that: The grinder also includes a controller, a grinding motor, a ∩-shaped rotating bracket, and a lifting adjustment mechanism. The bottoms of the two vertical rods of the ∩-shaped rotating bracket are hingedly arranged on the two rotating bases of the sliding adjustment bracket. An inclination sensor is fixedly arranged on the ∩-shaped rotating bracket. The inclination sensor is electrically connected to the controller. The lifting adjustment mechanism includes a square frame, a first lead screw, a hand wheel, a lifting servo motor, a lifting control handle, and a serial port screen. The two sides of the square frame are respectively slidably sleeved on the corresponding vertical rods. The bottom of the first lead screw is connected to the square frame. The top of the frame is fixedly connected, and the upper part of the first lead screw passes through the upper horizontal plate of the ∩-shaped rotating bracket, the hand wheel and the lifting servo motor are both arranged on the upper horizontal plate, and the hand wheel and the lifting servo motor can independently realize the lifting and lowering drive of the first lead screw, the lifting servo motor is electrically connected to the controller, the serial port screen and the lifting control handle are electrically connected to the controller, and the lifting servo motor is provided with a start and stop control switch of the lifting servo motor, the grinding motor is arranged on the square frame, and the grinding head is arranged on the power output shaft of the grinding motor.

2. A rail grinding machine according to claim 1, characterized in that: A driving thread sleeve that cooperates with the first lead screw thread is arranged on the upper horizontal plate, and the driving thread sleeve can rotate freely relative to the upper horizontal plate. The lower end of the hand wheel is fixedly connected to the driving thread sleeve, and a first gear is fixedly arranged on the outer side of the lower part of the driving thread sleeve. A second gear is arranged on the output shaft of the lifting servo motor, and the second gear is meshed with the first gear.

3. A rail grinding machine according to claim 2, characterized in that: A protective ring is sleeved on the periphery of the grinding head, and two sides of the protective ring are fixedly connected to the bottom of the corresponding vertical rod through a connecting plate.

4. A rail grinding machine according to claim 3, characterized in that An angle adjustment positioning mechanism is arranged on one side of the sliding adjustment bracket, and the angle adjustment positioning mechanism includes a screw transmission mechanism, a rotating locking member, and a rotating guide plate. The box body of the screw transmission mechanism is hingedly arranged on the sliding adjustment bracket, and the rotating guide plate is fixedly connected to the corresponding vertical rod. One end of the rotating locking member is clamped and fixed in the arc guide groove of the rotating guide plate, and one end of the second screw of the screw transmission mechanism is hingedly connected to the rotating locking member.

5. A rail grinding machine according to claim 4, characterized in that An angle scale located below the rotating guide plate is fixedly arranged on the sliding adjustment bracket, and a pointer corresponding to the angle scale is arranged on the rotating guide plate.

6. A rail grinding machine according to claim 5, characterized in that: The grinder also includes a track movable bracket, and support wheels are arranged on both the front and rear sides of the track movable bracket, and the support wheels are used to support the track movable bracket to walk on the track. Two lifting handles are arranged on both the left and right sides of the track movable bracket.

7. A rail grinding machine according to claim 6, characterized in that: Two guide rails located at the front and rear sides of the sliding adjustment bracket are arranged on the upper part of the track movable bracket, and a guide rail slide seat clamped on the corresponding guide rail is arranged on the sliding adjustment bracket, and a translation adjustment mechanism for realizing the movement of the sliding adjustment bracket is arranged at one end of the track movable bracket, and the translation adjustment mechanism includes a third lead screw and a lead screw rotation driving mechanism, and the lead screw rotation driving mechanism is fixedly arranged on the track movable bracket, one end of the third lead screw is connected to the lead screw rotation driving mechanism, and the other end is connected to one end of the sliding adjustment bracket by a threaded fitting method, and the reciprocating movement of the sliding adjustment bracket is realized by the rotation of the third lead screw, and the lead screw rotation driving mechanism adopts a chain transmission method to realize the rotation drive of the third lead screw.

8. A rail grinding machine according to claim 7, characterized in that: The grinder also includes a control box, a control box, and a battery. The control box is arranged on the track movable bracket, and the controller is arranged in the control box. The control box, the battery and the grinding motor are all electrically connected to the controller. A control switch for controlling the start and stop of the grinding motor is arranged on the control box.

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