End face grinding device for railway bearing maintenance

Abstract

The invention relates to the technical field of railway bearing maintenance, and particularly discloses an end face polishing device for railway bearing maintenance, which comprises a base, first sliding chutes, a sliding assembly, a positioning mechanism, a moving assembly, a polishing mechanism and a railway bearing outer ring, the positioning mechanism is arranged at the top end of the sliding assembly, and the moving assembly is arranged on the right side of the top end of the base. The device can monitor the abrasion state of the grinding wheel in real time, discover the out-of-round or excessive abrasion condition of the grinding wheel in time, and avoid the situation that the grinding quality is reduced or the bearing end face is damaged due to the irregular grinding wheel contour; meanwhile, the position of the grinding wheel can be dynamically adjusted according to the abrasion loss, stable contact pressure between the grinding wheel and the bearing end face is always kept, the problems of low grinding efficiency and poor contact caused by diameter reduction of the grinding wheel are effectively solved, and the grinding precision and the operation stability are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway bearing maintenance, and specifically provides an end face grinding device for railway bearing maintenance. Background Art

[0002] As a key component of the running gear of railway vehicles, the performance of railway bearings directly affects the running safety and service life of trains. Railway bearings mainly consist of components such as outer rings, inner rings, rolling elements, cages, and sealing devices. During the long-term operation under complex alternating loads, the end faces of each component are prone to damage such as wear, corrosion, or deformation. When performing bearing maintenance, it is usually necessary to disassemble the bearing and perform precise grinding on the end faces of each component. Especially for key parts such as the outer ring end face, inner ring end face, and cage end face, the purpose of end face grinding is to eliminate surface defects, restore geometric accuracy, and provide a good reference surface for subsequent dimensional repair and assembly. There are several technical defects in the existing end face grinding devices for railway bearing maintenance that urgently need to be solved: First, the device lacks an effective grinding wheel detection mechanism. During the grinding process, continuous friction between the grinding wheel and the bearing end face will cause wear. Especially when dealing with bearing steel materials with high hardness, the abrasive grains on the surface of the grinding wheel will gradually fall off. In addition, due to the possible uneven wear or local hardening of the bearing end face, the grinding wheel may be eccentrically worn. The combined effect of these factors may cause the grinding wheel to gradually become an irregular circle. When the grinding wheel becomes out-of-round and continues to be used, it will not only reduce the grinding accuracy, resulting in wavy errors on the bearing end face, but also may cause vibration and noise, and even cause secondary damage to the bearing components in severe cases. Secondly, the traditional device lacks an automatic grinding wheel compensation mechanism. As the grinding operation progresses, the diameter of the grinding wheel will continuously decrease. This change in size will change the contact pressure between the grinding wheel and the bearing end face. When the diameter of the grinding wheel decreases to a certain extent, there may be insufficient contact pressure, resulting in a decrease in grinding efficiency, or even a complete loss of contact and inability to perform effective grinding. This not only affects the consistency of the maintenance quality, but also requires operators to frequently stop the machine for manual adjustment, greatly reducing the maintenance efficiency. In addition, the lack of an automatic compensation function may also lead to differences in grinding parameters between different maintenance batches, making it difficult to meet the standardized and normalized requirements for bearing maintenance. Summary of the Invention

[0003] The purpose of the present invention is to provide an end face grinding device for railway bearing maintenance to solve the technical problems raised in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solution: An end face grinding device for railway bearing maintenance, comprising: a base, a first chute, a sliding assembly, a positioning mechanism, a moving assembly, a grinding mechanism and an outer ring of a railway bearing. At the front and rear ends of the left side of the top of the base, first chutes are provided in the left-right direction. The sliding assembly is arranged on the left side of the top of the base. The positioning mechanism is arranged on the top of the sliding assembly. The sliding assembly can drive the positioning mechanism to move. The moving assembly is arranged on the right side of the top of the base. The grinding mechanism is arranged on the top of the moving assembly. The moving assembly can drive the grinding mechanism to move. The outer ring of the railway bearing is arranged on the outer wall of the positioning mechanism.

[0005] Preferably, the grinding mechanism comprises: a moving frame, a rotating rod, a grinding wheel, a radius detection component, a distance detection component and a driving component. The number of the moving frames is two. The two moving frames are respectively arranged on the front and rear sides of the top of the moving assembly. The two moving frames are arranged oppositely. The two ends of the rotating rod are respectively rotatably arranged at the inner top of the inner cavity of the moving frame through bearings. The right end of the rotating rod rotatably extends out of the right side of the moving frame. The grinding wheel is fixedly sleeved on the middle part of the outer wall of the rotating rod. The radius detection component is arranged on the outer wall of the rotating rod. The distance detection component is arranged on the left side of the moving frame. The driving component is arranged on the right side of the outer wall of the rotating rod.

[0006] Preferably, the positioning mechanism comprises: a support seat, a support rod, an inner support component and a rotating component. The support seat is arranged on the top of the sliding assembly. The support rod is arranged at the rear top of the support seat. The inner support component is rotatably arranged on the outer wall of the support rod. The rotating component is sleeved on the outer wall of the inner support component.

[0007] Preferably, the inner support component comprises: a rotating cylinder, a first sleeve, a first connecting rod, a nut, a second sleeve, a second connecting rod and an inner support claw. The rotating cylinder is rotatably sleeved on the rear side of the outer wall of the support rod. The number of the first sleeves is two. The two first sleeves are arranged on the front side of the outer wall of the rotating cylinder in the front-rear direction. The number of the first connecting rods is six. Every three first connecting rods are in a group, divided into two groups. One ends of the two groups of first connecting rods are respectively rotatably arranged on the outer walls of the two first sleeves circumferentially at equal intervals through pins. The nut is screwed on the rear side of the outer wall of the rotating cylinder. The second sleeve is rotatably arranged on the front side of the nut through a bearing. The second sleeve is slidably sleeved on the outer wall of the rotating cylinder. The number of the second connecting rods is three. One ends of the three second connecting rods are respectively rotatably arranged on the outer wall of the second sleeve circumferentially at equal intervals through pins. The number of the inner support claws is three. The inner sides of the three inner support claws are respectively rotatably arranged at the other ends of the six first connecting rods and the three second connecting rods through pins. The outer sides of the inner support claws are in contact with the inner wall of the outer ring of the railway bearing.

[0008] Preferably, the radius detection component includes: a guiding plate, a second sliding groove, a positioning frame, a third guide rod, a second connecting rod, a first spring, a roller, and a first infrared sensor. There are two guiding plates. The bottom ends of the two guiding plates are respectively rotatably sleeved on the left and right sides of the outer wall of the rotating rod through bearings. A second sliding groove penetrating left and right in the vertical direction is formed in the middle of the right side of the guiding plate. The bottom end of the positioning frame is arranged in the middle of the top end of the moving frame. The top end of the guiding plate is sleeved on the top end of the outer wall of the positioning frame. The upper and lower ends of the third guide rod are respectively arranged on the upper and lower sides of the inner cavity of the second sliding groove. The left and right sides of the outer wall of the second connecting rod are respectively slidably and adaptively inserted into the top parts of the inner cavities of the two second sliding grooves. The second connecting rod is slidably sleeved on the outer wall of the third guide rod. The first spring is sleeved on the top of the outer wall of the third guide rod. The top end of the first spring is clamped to the top end of the inner cavity of the second sliding groove. The bottom end of the first spring is clamped to the outer wall of the second connecting rod. The roller is rotatably sleeved on the middle of the outer wall of the second connecting rod through a bearing. The outer wall of the roller is in contact with the outer wall of the grinding wheel. There are two first infrared sensors. The two first infrared sensors are respectively arranged at the inner ends of the left and right sides of the top end of the moving frame. The positions of the two first infrared sensors respectively correspond to the left and right sides of the outer wall of the second connecting rod.

[0009] Preferably, the distance detection component includes: a support plate, a fourth guide rod, a card slot, a sliding plate, an extrusion groove, a positioning component, and a second infrared sensor. The support plate is arranged in the middle of the left side of the moving frame. There are four fourth guide rods. The four fourth guide rods are divided into two groups in pairs. The two groups of fourth guide rods are respectively arranged on the top ends of the two support plates. A plurality of card slots are formed in the inner side of the outer wall of the fourth guide rod in the vertical direction. There are two sliding plates. The two sliding plates are respectively slidably sleeved on the outer walls of the two groups of fourth guide rods. An extrusion groove is formed in the inner side of the inner cavity of the sliding plate. The positioning component is arranged in the inner cavity of the extrusion groove. The second infrared sensor is arranged on the inner side of the sliding plate. The second infrared sensor, the first infrared sensor, and the moving component are all electrically connected.

[0010] Preferably, the positioning component includes: a second spring and a ball. The second spring is embedded in the inner cavity of the extrusion groove. The inner end of the second spring is clamped to the inner side of the inner cavity of the extrusion groove. A part of the ball is slidably embedded in the inner cavity of the extrusion groove. The other part of the ball extends into the inner cavity of the card slot corresponding to its position in a matching manner. The outer end of the second spring is clamped to the outer wall of the ball.

[0011] Preferably, the length of the ball extending into the inner cavity of the card slot is less than its radius.

[0012] Preferably, a nozzle is arranged at the top end of the outer wall of the positioning frame.

[0013] An end face grinding device for railway bearing maintenance proposed by the present invention has the following beneficial effects: 1. By rotating the nut, the second kit can be driven to slide forward along the outer wall of the rotating cylinder. Thus, the cooperation between the first connecting rod and the second connecting rod can be used to make the three inner support claws move synchronously outward. Furthermore, the outer ring of the railway bearing can be fixed by the three inner support claws. The sliding assembly can drive the support seat to move the outer ring of the railway bearing to the right until it reaches a suitable position. The rotating assembly can drive the rotating cylinder to rotate, and then the rotating cylinder can drive the outer ring of the railway bearing to rotate.

[0014] 2. The first infrared sensor can detect the distance between it and the second connecting rod, so as to judge the radius of the grinding wheel. The second infrared sensor can detect the distance between it and the outer ring of the railway bearing, so as to judge the distance between the grinding wheel and the outer ring of the railway bearing. The moving assembly can drive the moving frame to drive the grinding wheel to move until the grinding wheel contacts the outer ring of the railway bearing. Then, the driving assembly can drive the grinding wheel to rotate, and the grinding wheel can be used to grind the end face of the outer ring of the railway bearing.

[0015] 3. This device can monitor the wear state of the grinding wheel in real time, timely detect the situation of the grinding wheel being out of round or over-worn, and avoid the decline of grinding quality or damage to the bearing end face caused by the irregular contour of the grinding wheel. At the same time, it can dynamically adjust the position of the grinding wheel according to the wear amount to ensure that the grinding wheel and the bearing end face always maintain a stable contact pressure, effectively solve the problems of reduced grinding efficiency and poor contact caused by the decrease in the diameter of the grinding wheel, and significantly improve the grinding accuracy and operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 an exploded view of Figure 3 is a schematic structural diagram of the positioning mechanism; Figure 4 is a schematic structural diagram of the grinding mechanism; Figure 5 is an exploded view of the positioning mechanism; Figure 6 is an exploded view of the grinding mechanism; Figure 7 is a schematic structural diagram of the distance detection component; Figure 8 is a schematic structural diagram of the positioning component; Figure 9 is Figure 6 an enlarged view of part A in Figure 10 isFigure 6 Enlarged view at position B in Figure 11 is Figure 6 Enlarged view at position C in

[0017] In the figure: 1, base; 2, first chute; 3, first guide rod; 4, slider; 5, electric telescopic rod; 6, positioning mechanism; 61, support base; 62, support rod; 63, rotating cylinder; 64, first kit; 65, first connecting rod; 66, nut; 67, second kit; 68, second connecting rod; 69, inner support claw; 610, second motor; 611, first connecting rod; 612, first pulley; 613, first belt; 7, first motor; 8, screw; 9, grinding mechanism; 91, moving frame; 92, rotating rod; 93, grinding wheel; 94, guiding plate; 95, second chute; 96, positioning frame; 97, spray head; 98, third guide rod; 99, second connecting rod; 910, first spring; 911, roller; 912, first infrared sensor; 913, support plate; 914, fourth guide rod; 915, clamping groove; 916, sliding plate; 917, extrusion groove; 918, second spring; 919, clamping ball; 920, second infrared sensor; 921, third motor; 922, third connecting rod; 923, second pulley; 924, second belt; 10, second guide rod; 11, outer ring of railway bearing. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 11 , the present invention provides a technical solution for an end face grinding device for railway bearing maintenance, including: base 1, first chute 2, sliding assembly, positioning mechanism 6, moving assembly, grinding mechanism 9 and outer ring 11 of railway bearing. At the front and rear ends on the left side of the top of the base 1, first chutes 2 are respectively opened in the left - right direction. The sliding assembly is arranged on the left side of the top of the base 1. Through the sliding assembly, the positioning mechanism 6 can be driven to move. The positioning mechanism 6 is arranged on the top of the sliding assembly. The positioning mechanism 6 is used to fix the outer ring 11 of the railway bearing. The moving assembly is arranged on the right side of the top of the base 1. Through the moving assembly, the grinding mechanism 9 can be driven to move. The grinding mechanism 9 is arranged on the top of the moving assembly. The grinding mechanism 9 is used to grind the outer ring 11 of the railway bearing. The outer ring 11 of the railway bearing is arranged on the outer wall of the positioning mechanism 6.

[0020] As a preferred solution, further, the positioning mechanism 6 includes: a support base 61, a support rod 62, an inner support assembly, and a rotating assembly. The support base 61 is arranged at the top of the sliding assembly. The support rod 62 is arranged at the top rear side of the support base 61. The support rod 62 is used to support the outer ring 11 of the railway bearing. The inner support assembly is rotatably arranged on the outer wall of the support rod 62 and is used to internally support and fix the outer ring 11 of the railway bearing. The rotating assembly is sleeved on the outer wall of the inner support assembly and is used to drive the inner support assembly to rotate.

[0021] As a preferred solution, further, the inner support assembly includes: a rotating cylinder 63, a first sleeve 64, a first connecting rod 65, a nut 66, a second sleeve 67, a second connecting rod 68, and an inner support claw 69. The rotating cylinder 63 is rotatably sleeved on the rear side of the outer wall of the support rod 62 and is used to drive the outer ring 11 of the railway bearing to rotate. The number of the first sleeves 64 is two, and the two first sleeves 64 are arranged on the front side of the outer wall of the rotating cylinder 63 in the front-rear direction. The number of the first connecting rods 65 is six. Every three first connecting rods 65 are in a group, and are divided into two groups. One ends of the two groups of first connecting rods 65 are respectively rotatably arranged on the outer walls of the two first sleeves 64 at equal circumferential intervals through pins. The nut 66 is screwed on the rear side of the outer wall of the rotating cylinder 63 and is used to drive the second sleeve 67 to move along the outer wall of the rotating cylinder 63. The second sleeve 67 is rotatably arranged on the front side of the nut 66 through a bearing and is slidably sleeved on the outer wall of the rotating cylinder 63. The number of the second connecting rods 68 is three. One ends of the three second connecting rods 68 are respectively rotatably arranged on the outer wall of the second sleeve 67 at equal circumferential intervals through pins. When the second sleeve 67 slides along the outer wall of the rotating cylinder 63, the cooperation between the second connecting rod 68 and the first connecting rod 65 can be used to drive the inner support claw 69 to move. The number of the inner support claws 69 is three. The inner sides of the three inner support claws 69 are respectively rotatably arranged at the other ends of the six first connecting rods 65 and the three second connecting rods 68 through pins. The outer sides of the inner support claws 69 are in contact with the inner wall of the outer ring 11 of the railway bearing, and the inner support claws 69 are used to internally support and fix the outer ring 11 of the railway bearing.

[0022] As a preferred solution, further, the rotating assembly includes: a second motor 610, a first connecting rod 611, a first pulley 612, and a first belt 613. The second motor 610 is screwed to the top of the support base 61. The second motor 610 is a prior art and is a servo motor, which will not be elaborated here too much. The second motor 610 is used to drive the rotating cylinder 63 to rotate here. The first connecting rod 611 is locked to the output end of the second motor 610 through a coupling. The number of the first pulleys 612 is two, and the two first pulleys 612 are respectively sleeved on the front side of the outer wall of the rotating cylinder 63 and the outer wall of the first connecting rod 611 and are locked. The two ends of the first belt 613 are respectively sleeved on the outer walls of the two first pulleys 612.

[0023] As a preferred solution, further, the grinding mechanism 9 includes: a moving frame 91, a rotating rod 92, a grinding wheel 93, a radius detection component, a distance detection component, and a driving component. The number of moving frames 91 is two, and the two moving frames 91 are respectively arranged on the front and rear sides of the top of the moving component. The two moving frames 91 are arranged oppositely. The moving frame 91 is used to drive the grinding wheel 93 to move. The two ends of the rotating rod 92 are respectively rotatably arranged at the inner top of the inner cavity of the moving frame 91 through bearings. The right end of the rotating rod 92 rotatably extends out of the right side of the moving frame 91. The rotating rod 92 is used to drive the grinding wheel 93 to rotate. The grinding wheel 93 is fixedly sleeved in the middle of the outer wall of the rotating rod 92. The grinding wheel 93 is a prior art and will not be elaborated here. The grinding wheel 93 is used here to grind the end face of the outer ring 11 of the railway bearing. The radius detection component is arranged on the outer wall of the rotating rod 92 and is used to detect the radius of the grinding wheel 93. The distance detection component is arranged on the left side of the moving frame 91 and is used to detect the distance between the grinding wheel 93 and the outer ring 11 of the railway bearing. The driving component is arranged on the right side of the outer wall of the rotating rod 92 and is used to drive the rotating rod 92 to rotate. The nozzle 97 is arranged on the outer wall of the radius detection component. The nozzle 97 is a prior art and will not be elaborated here. The nozzle 97 is used here to spray coolant.

[0024] As a preferred solution, further, the radius detection component includes: a guide plate 94, a second chute 95, a positioning frame 96, a third guide rod 98, a second connecting rod 99, a first spring 910, a roller 911 and a first infrared sensor 912. There are two guide plates 94. The bottom ends of the two guide plates 94 are respectively rotatably sleeved on the left and right sides of the outer wall of the rotating rod 92 through bearings. A second chute 95 penetrating left and right in the vertical direction is provided in the middle of the right side of the guide plate 94. The guide plate 94 is used to support the roller 911. The bottom end of the positioning frame 96 is arranged in the middle of the top end of the moving frame 91. The top end of the guide plate 94 is sleeved on the top end of the outer wall of the positioning frame 96. The spray head 97 is arranged on the top end of the outer wall of the positioning frame 96. The positioning frame 96 is used to ensure the stability of the guide plate 94. The upper and lower ends of the third guide rod 98 are respectively arranged on the upper and lower sides of the inner cavity of the second chute 95. The third guide rod 98 is used to limit the second connecting rod 99. The left and right sides of the outer wall of the second connecting rod 99 are respectively slidably and adaptively inserted into the top of the inner cavities of the two second chutes 95. The second connecting rod 99 is slidably sleeved on the outer wall of the third guide rod 98. The first spring 910 is sleeved on the top of the outer wall of the third guide rod 98. The top end of the first spring 910 is clamped on the top end of the inner cavity of the second chute 95. The bottom end of the first spring 910 is clamped on the outer wall of the second connecting rod 99. The first spring 910 is a rotary spring, which undergoes elastic deformation after being externally squeezed or stretched and returns to its initial state after the external force is removed. The first spring 910 is used here to push the second connecting rod 99 to drive the roller 911 to move downward. The roller 911 is rotatably sleeved on the middle of the outer wall of the second connecting rod 99. The outer wall of the roller 911 is in contact with the outer wall of the grinding wheel 93. There are two first infrared sensors 912. The two first infrared sensors 912 are respectively arranged at the inner ends of the left and right sides of the top end of the moving frame 91. The positions of the two first infrared sensors 912 respectively correspond to the left and right sides of the outer wall of the second connecting rod 99. The first infrared sensor 912 is a prior art and will not be elaborated here. The first infrared sensor 912 is used here to detect the distance between it and the second connecting rod 99, so as to judge the radius of the grinding wheel 93.

[0025] As a preferred solution, furthermore, the distance detection component includes: a support plate 913, a fourth guide rod 914, a card slot 915, a sliding plate 916, an extrusion groove 917, a positioning component, and a second infrared sensor 920. The support plate 913 is arranged in the middle of the left side of the moving frame 91. The support plate 913 is used to support the fourth guide rod 914. The number of the fourth guide rods 914 is four. The four fourth guide rods 914 are divided into two groups in pairs. The two groups of fourth guide rods 914 are respectively arranged at the tops of the two support plates 913. A plurality of card slots 915 are opened along the up and down direction on the inner side of the outer wall of the fourth guide rod 914. The fourth guide rod 914 is used to guide the sliding of the sliding plate 916. The number of the sliding plates 916 is two. The two sliding plates 916 are respectively slidably sleeved on the outer walls of the two groups of fourth guide rods 914. An extrusion groove 917 is opened on the inner side of the inner cavity of the sliding plate 916. The sliding plate 916 is used to drive the second infrared sensor 920 to move. The positioning component is arranged in the inner cavity of the extrusion groove 917. The positioning component can fix the position of the sliding plate 916. The second infrared sensor 920 is arranged on the inner side of the sliding plate 916. The second infrared sensor 920, the first infrared sensor 912, and the moving component are all electrically connected. The second infrared sensor 920 is a prior art and will not be elaborated here. The second infrared sensor 920 is used here to detect the distance between it and the outer ring 11 of the railway bearing, so as to judge the distance between the grinding wheel 93 and the outer ring 11 of the railway bearing.

[0026] As a preferred solution, furthermore, the positioning component includes: a second spring 918 and a clamping ball 919. The second spring 918 is embedded in the inner cavity of the extrusion groove 917. The inner end of the second spring 918 is clamped to the inner side of the inner cavity of the extrusion groove 917. The second spring 918 is a rotary spring. It undergoes elastic deformation after being extruded or stretched by an external force and returns to its initial state after the external force is removed. The second spring 918 is used here to push the clamping ball 919 into the inner cavity of the card slot 915. A part of the clamping ball 919 is slidably embedded in the inner cavity of the extrusion groove 917. The other part of the clamping ball 919 extends into the inner cavity of the card slot 915 corresponding to its position in a matching manner. The outer end of the second spring 918 is clamped to the outer wall of the clamping ball 919. The cooperation between the clamping ball 919 and the card slot 915 can be used to fix the position of the sliding plate 916. The length of the clamping ball 919 extending into the inner cavity of the card slot 915 is less than its radius, ensuring that the sliding plate 916 can slide along the outer wall of the fourth guide rod 914.

[0027] As a preferred solution, further, the driving assembly includes: a third motor 921, a third connecting rod 922, a second pulley 923, and a second belt 924. The third motor 921 is screw-connected to the outer side of the top end of the moving frame 91. The third motor 921 is a prior art and is a servo motor, which will not be elaborated here. The third motor 921 is used to drive the rotating rod 92 to rotate. The third connecting rod 922 is locked to the output end of the third motor 921 through a coupling. The number of the second pulleys 923 is two, and the two second pulleys 923 are respectively sleeved on the outer wall of the third connecting rod 922 and the right side of the outer wall of the rotating rod 92 and are locked. The two ends of the second belt 924 are respectively sleeved on the outer walls of the two second pulleys 923.

[0028] As a preferred solution, further, the sliding assembly includes: a first guide rod 3, a slider 4, and an electric telescopic rod 5. The left and right ends of the first guide rod 3 are respectively arranged on the left and right sides of the inner cavity of the first chute 2. The number of the sliders 4 is two, and the two sliders 4 are respectively arranged on the front and rear sides of the bottom end of the support seat 61. The two sliders 4 are respectively slidably and adaptively inserted into the inner cavities of the two first chutes 2. The slider 4 is slidably sleeved on the outer wall of the first guide rod 3. The electric telescopic rod 5 is arranged on the left side of the top end of the support seat 61, and the right end of the electric telescopic rod 5 is arranged on the left side of the support seat 61. The electric telescopic rod 5 is a prior art and will not be elaborated here. The electric telescopic rod 5 is used to push the support seat 61 to move.

[0029] As a preferred solution, further, the moving assembly includes: two first motors 7, a screw rod 8, and a second guide rod 10. The number of the first motors 7 is two, and the two first motors 7 are respectively screw-connected to the front and rear ends of the right side of the top end of the base 1. The first motors 7 are a prior art and are servo motors, which will not be elaborated here. The first motors 7 are used to drive the screw rod 8 to rotate. The screw rod 8 is locked to the output end of the first motor 7 through a coupling. The two moving frames 91 are respectively screwed on the outer wall of the screw rod 8. The rotational force generated by the rotation of the screw rod 8 can cause the moving frames 91 to move. The middle part of the outer wall of the second guide rod 10 is arranged in the middle of the right side of the top end of the base 1. The moving frame 91 is slidably sleeved on the outer wall of the second guide rod 10.

[0030] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

[0031] During use, rotate the nut 66. The rotational force generated by the rotation of the nut 66 drives the nut 66 to drive the second kit 67 to slide forward along the outer wall of the rotating cylinder 63. Thus, the cooperation between the second connecting rod 68 and the first connecting rod 65 is utilized to cause the inner support claws 69 to move outward, so as to use the three inner support claws 69 to internally support and fix the outer ring 11 of the railway bearing. Start the electric telescopic rod 5, use the electric telescopic rod 5 to push the support seat 61 to slide to the right, and then use the support seat 61 to drive the outer ring 11 of the railway bearing to move to the right until the outer ring 11 of the railway bearing moves to a suitable position. Since the outer wall of the roller 911 contacts the outer wall of the grinding wheel 93, the distance between it and the second connecting rod 99 is detected by the first infrared sensor 912, so as to judge the radius of the grinding wheel 93. Slide the sliding plate 916 up and down, so as to drive the second infrared sensor 920 to slide up and down by using the sliding plate 916. When the sliding plate 916 slides along the outer wall of the fourth guide rod 914, the inner wall of the card slot 915 squeezes the ball 919 to move into the inner cavity of the extrusion groove 917, and squeezes the second spring 918 to generate elastic deformation until the sliding plate 916 drives the second infrared sensor 920 to move to a suitable position. Under the elastic force of the second spring 918, the ball 919 can be squeezed to move into the inner cavity of the card slot 915 corresponding to its current position, and then the cooperation between the ball 919 and the card slot 915 is used to fix the position of the sliding plate 916. At this time, the position of the second infrared sensor 920 corresponds to the position of the outer wall of the outer ring 11 of the railway bearing. The distance between it and the outer ring 11 of the railway bearing is detected by the second infrared sensor 920, and the radius of the grinding wheel 93 is detected by the first infrared sensor 912 to judge the distance between the grinding wheel 93 and the outer ring 11 of the railway bearing. Start the first motor 7, use the output end of the first motor 7 to drive the screw rod 8 to rotate. The rotational force generated by the rotation of the screw rod 8 drives the moving frame 91 to drive the grinding wheel 93 to move. The distance between the grinding wheel 93 and the outer ring 11 of the railway bearing is monitored in real time by the second infrared sensor 920 until the moving frame 91 drives the grinding wheel 93 to move to a suitable position to make the grinding wheel 93 contact the end face of the outer ring 11 of the railway bearing. Start the third motor 921, and drive the rotating rod 92 to rotate through the cooperation between the third motor 921, the third connecting rod 922, the second pulley 923 and the second belt 924, so as to drive the grinding wheel 93 to rotate by using the rotating rod 92, and start the second motor 610. The outer ring 11 of the railway bearing is driven to rotate through the rotating cylinder 63 by the cooperation between the second motor 610, the first connecting rod 611, the first pulley 612 and the first belt 613. Thus, the end face of the rotating outer ring 11 of the railway bearing is ground by the rotating grinding wheel 93. As the outer ring 11 of the railway bearing is ground, the grinding wheel 93 will wear, and then the diameter of the grinding wheel 93 becomes smaller. At this time, under the elastic force of the first spring 910, the second connecting rod 99 can be pushed to drive the roller 911 to move downward.Furthermore, it promotes the outer wall of the roller 911 to always be in contact with the outer wall of the grinding wheel 93. Since the second connecting rod 99 moves downward, the distance between the second connecting rod 99 and the first infrared sensor 912 becomes smaller. The first infrared sensor 912 transmits a signal to the central control console, and the central control console starts the first motor 7 to drive the screw rod 8 to rotate, thereby promoting the movement of the moving frame 91. The second infrared sensor 920 is used to detect the distance from the outer ring 11 of the railway bearing in real time. At the same time, according to the radius of the grinding wheel 93 detected by the first infrared sensor 912, the distance between the grinding wheel 93 and the outer ring 11 of the railway bearing is judged until the grinding wheel 93 moves to a suitable position. When the grinding wheel 93 becomes an irregular circle due to wear, as the grinding wheel 93 rotates, it will push the roller 911 to drive the second connecting rod 99 to move up and down frequently. As a result, the distance detected by the first infrared sensor 912 between it and the second connecting rod 99 will fluctuate frequently. At this time, it means that the surface grinding wheel 93 has become an irregular circle and needs to be trimmed in time. This device can monitor the wear state of the grinding wheel 93 in real time, detect the out-of-roundness or excessive wear of the grinding wheel 93 in time, and avoid the decline in grinding quality or damage to the bearing end face caused by the irregular contour of the grinding wheel 93. At the same time, it can dynamically adjust the position of the grinding wheel 93 according to the wear amount to ensure that the grinding wheel 93 always maintains a stable contact pressure with the bearing end face, effectively solving the problems of reduced grinding efficiency and poor contact caused by the decrease in the diameter of the grinding wheel 93, and significantly improving the grinding accuracy and operation stability.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An end surface grinding device for railway bearing maintenance, characterized in that: include: A base (1), wherein first sliding grooves (2) are provided at both front and rear ends of the left side of the top end of the base (1) in the left-right direction; A sliding assembly, the sliding assembly being arranged on the left side of the top end of the base (1); A positioning mechanism (6), the positioning mechanism (6) being arranged at the top end of the sliding assembly, and the sliding assembly being capable of driving the positioning mechanism (6) to move; A moving component, the moving component being arranged on the right side of the top end of the base (1); A grinding mechanism (9), wherein the grinding mechanism (9) is arranged at the top of the moving component, and the moving component can drive the grinding mechanism (9) to move; A railway bearing outer ring (11), wherein the railway bearing outer ring (11) is arranged on an outer wall of the positioning mechanism (6); The grinding mechanism (9) comprises: A movable rack (91), wherein the number of the movable racks (91) is two, and the two movable racks (91) are respectively arranged at the front and rear sides of the top of the movable assembly, and the two movable racks (91) are arranged opposite to each other; A rotating rod (92), wherein both ends of the rotating rod (92) are rotatably disposed at the top end of the inner side of the inner cavity of the movable frame (91) via bearings, and the right end of the rotating rod (92) is rotatably extended out of the right side of the movable frame (91); A grinding wheel (93), wherein the grinding wheel (93) is fixedly sleeved on the middle portion of the outer wall of the rotating rod (92); a radius detection component, the radius detection component being arranged on an outer wall of the rotating rod (92); A distance detection component, wherein the distance detection component is arranged on the left side of the moving frame (91); A drive assembly is arranged on the right side of the outer wall of the rotating rod (92).

2. The end surface grinding device for railway bearing maintenance according to claim 1, characterized in that: The positioning mechanism (6) comprises: A support seat (61), wherein the support seat (61) is arranged at the top end of the sliding assembly; A support rod (62), wherein the support rod (62) is arranged on the top of the rear side of the support seat (61); An inner support assembly, the inner support assembly being rotatably disposed on an outer wall of the support rod (62); The rotating assembly is sleeved on the outer wall of the inner support assembly.

3. The end surface grinding device for railway bearing maintenance according to claim 2, characterized in that: The inner support assembly comprises: A rotating drum (63), the rotating drum (63) being rotatably sleeved on the rear side of the outer wall of the support rod (62); A first set (64), the number of the first set (64) being two, and the two first sets (64) being arranged on the front side of the outer wall of the rotating drum (63) along the front-to-back direction; First connecting rods (65), the number of the first connecting rods (65) is six, and each group of three first connecting rods (65) is divided into two groups, and one end of the two groups of first connecting rods (65) is rotatably arranged on the outer walls of the two first sets (64) at equal distances along the circumferential direction through pins; A nut (66), wherein the nut (66) is threadedly connected to the rear side of the outer wall of the rotating drum (63); a second set (67), the second set (67) being rotatably disposed on the front side of the nut (66) via a bearing, and the second set (67) being slidably sleeved on the outer wall of the rotating drum (63); A second connecting rod (68), the number of the second connecting rods (68) being three, one end of the three second connecting rods (68) being rotatably arranged on the outer wall of the second set (67) via pins at equal intervals in the circumferential direction; Inner support claws (69), the number of the inner support claws (69) is three, the inner sides of the three inner support claws (69) are rotatably arranged on the other ends of the six first connecting rods (65) and the three second connecting rods (68) through pins, and the outer sides of the inner support claws (69) are in contact with the inner wall of the outer ring (11) of the railway bearing.

4. The end surface grinding device for railway bearing maintenance according to claim 3, characterized in that: The radius detection component comprises: A guide plate (94), wherein the number of the guide plates (94) is two, and the bottom ends of the two guide plates (94) are rotatably sleeved on the left and right sides of the outer wall of the rotating rod (92) through bearings, respectively, and a second sliding groove (95) penetrating left and right is opened in the middle of the right side of the guide plate (94) along the up-down direction; A positioning frame (96), wherein the bottom end of the positioning frame (96) is arranged at the middle of the top end of the moving frame (91), and the top end of the guide plate (94) is sleeved on the top end of the outer wall of the positioning frame (96); a third guide rod (98), wherein upper and lower ends of the third guide rod (98) are respectively arranged at upper and lower sides of the inner cavity of the second slide groove (95); A second connecting rod (99), the left and right sides of the outer wall of the second connecting rod (99) are respectively slidably adapted to be inserted into the top of the inner cavity of the two second sliding grooves (95), and the second connecting rod (99) is slidably sleeved on the outer wall of the third guide rod (98); A first spring (910), wherein the first spring (910) is sleeved on the top of the outer wall of the third guide rod (98), the top end of the first spring (910) is clamped on the top of the inner cavity of the second slide groove (95), and the bottom end of the first spring (910) is clamped on the outer wall of the second connecting rod (99); A roller (911), the roller (911) being rotatably sleeved on the middle portion of the outer wall of the second connecting rod (99) via a bearing, the outer wall of the roller (911) being in contact with the outer wall of the grinding wheel (93); A first infrared sensor (912), wherein the number of the first infrared sensors (912) is two, and the two first infrared sensors (912) are respectively arranged at the inner ends on the left and right sides of the top of the movable frame (91), and the positions of the two first infrared sensors (912) respectively correspond to the left and right sides of the outer wall of the second connecting rod (99).

5. The end surface grinding device for railway bearing maintenance according to claim 4, characterized in that: The distance detection component comprises: A support plate (913), wherein the support plate (913) is arranged at the middle portion of the left side of the movable frame (91); Fourth guide rods (914), the number of the fourth guide rods (914) being four, the four fourth guide rods (914) being grouped in pairs and divided into two groups, the two groups of fourth guide rods (914) being respectively arranged at the top ends of the two support plates (913), and the inner sides of the outer walls of the fourth guide rods (914) being provided with a plurality of slots (915) in the up-down direction; Slide plates (916), the number of the slide plates (916) being two, the two slide plates (916) being slidably sleeved on the outer walls of the two sets of fourth guide rods (914), and an extrusion groove (917) being provided on the inner side of the inner cavity of the slide plates (916); a positioning assembly, the positioning assembly being arranged in the inner cavity of the extrusion groove (917); A second infrared sensor (920), wherein the second infrared sensor (920) is arranged on the inner side of the slide plate (916), and the second infrared sensor (920), the first infrared sensor (912) and the moving component are all electrically connected.

6. The end surface grinding device for railway bearing maintenance according to claim 5, characterized in that: The positioning component comprises: a second spring (918), the second spring (918) being embedded in the inner cavity of the extrusion groove (917), and the inner end of the second spring (918) being clamped on the inner side of the inner cavity of the extrusion groove (917); A locking ball (919), a portion of which is slidably embedded in the inner cavity of the extrusion groove (917), and another portion of which is adapted to extend into the inner cavity of the locking groove (915) corresponding to its position, and an outer end of the second spring (918) is locked to the outer wall of the locking ball (919).

7. The end surface grinding device for railway bearing maintenance according to claim 6, characterized in that: The length of the locking ball (919) extending into the inner cavity of the locking groove (915) is less than its radius.

8. The end surface grinding device for railway bearing maintenance according to claim 7, characterized in that: A nozzle (97) is provided at the top end of the outer wall of the positioning frame (96).

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