Gear polishing device suitable for slight abrasion of locomotive gear surface

Abstract

The invention provides a gear grinding device suitable for slight abrasion of the surface of a locomotive gear, and relates to the technical field of grinding of internal combustion locomotive gears. The connecting frame is located at the top of the supporting mechanism; the first motor is arranged at the bottom of the supporting table, and an output shaft of the first motor faces the second telescopic mechanism; a fixing table is arranged on an output shaft of the first motor, and a clamping assembly used for clamping a gear is arranged on the fixing table. The second telescopic mechanism is arranged at the outer bottom of the connecting frame, a second motor is arranged at the telescopic end of the second telescopic mechanism, an output shaft of the second motor faces the top of the supporting table, and a universal connecting piece is arranged between the second motor and the telescopic end of the second telescopic mechanism; and the grinding assembly is arranged on an output shaft of the second motor, the working end of the grinding assembly faces the clamping assembly, and the grinding assembly is used for grinding the gear. According to the gear grinding device, the workload of workers is reduced, the gear grinding device can adapt to grinding of gears of various models and sizes, and the situation that various grinding tools are stored due to different gear models and sizes is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding for internal combustion locomotive gears, and particularly to a gear grinding device suitable for slightly worn surfaces of locomotive gears. Background Art

[0002] At present, the transmission methods adopted by internal combustion locomotives are mainly mechanical transmission, hydraulic transmission, and electric transmission. For internal combustion locomotives adopting mechanical transmission, the internal transmission part mainly adjusts the transmission ratio through a gear set to meet the traction requirements under different driving conditions, enabling the engine to work under favorable working conditions as much as possible and meeting the required driving speeds.

[0003] During the operation of an internal combustion locomotive, the gear set in the transmission part undergoes long-term meshing transmission. In the light case, slight wear appears on the gear surface, such as slight pitting or corrosion pits. In this situation, the gear can be ground and repaired, and can continue to be used after ensuring that the gear quality is not affected. In the severe case, serious damage occurs to the gear, such as corrosion pits, cracks, fatigue wear, or detachment, etc., and a new gear must be replaced to ensure the performance of the vehicle. Among them, the repair methods for slight wear on the gear surface mainly include oilstone grinding, grinding machine grinding, and mechanized grinding. When these repair methods are used to grind gears, they have the following disadvantages: 1. Oilstone grinding and grinding machine grinding are basically manual grinding with the staff holding grinding tools, which not only increases the work load, but also has a low repair efficiency when facing a large number of gears to be repaired; 2. For the mechanized grinding method used for some gears, it is difficult to achieve good repair effects when facing helical gears and bevel thread gears; 3. Grinding tools need to be selected according to different gear sizes for grinding, resulting in an increase in the inventory of grinding tools. Summary of the Invention

[0004] In order to solve the disadvantages encountered in the grinding of gears in the gear set of existing internal combustion locomotives, the present invention provides a gear grinding device suitable for slightly worn surfaces of locomotive gears, which does not require the staff to hold grinding tools for grinding, improves the grinding efficiency while reducing the work load of the staff, and can adapt to the grinding of gears of various models and sizes, avoiding the need to stock multiple grinding tools due to different gear model sizes.

[0005] The technical solution adopted by the present invention is as follows: There is provided a gear grinding device suitable for slightly worn surfaces of locomotive gears, including: A support mechanism, including a support table and a support frame provided on the support table. A through groove is opened at the top of the support frame; a first telescopic mechanism is provided in the through groove at the top of the support frame, and a connection frame is provided at the telescopic end of the first telescopic mechanism, and the connection frame is sleeved on the top of the support frame; The first motor is provided at the bottom of the support platform, and the output shaft of the first motor faces the second telescopic mechanism; a fixed platform is provided on the output shaft of the first motor, and a clamping assembly for clamping the gear is provided on the fixed platform; The second telescopic mechanism is provided at the outer bottom of the connection frame. A second motor is provided at the telescopic end of the second telescopic mechanism. The output shaft of the second motor faces the top of the support platform, and a universal joint is provided between the output shaft of the second motor and the telescopic end of the second telescopic mechanism; The grinding assembly is provided on the output shaft of the second motor, and the working end of the grinding assembly faces the clamping assembly for grinding the gear.

[0006] Optionally, the grinding assembly includes: A sleeve is provided at the bottom end of the output shaft of the second motor. A plurality of first sliding grooves are circumferentially formed on the outer wall of the sleeve; the outer bottom of the sleeve has a grinding surface; The grinding block is located in the first sliding groove and is slidably connected to the sleeve through the first sliding groove; the bottom of the grinding block is flush with the grinding surface at the bottom of the sleeve; A first spring has one end provided on the outer wall of the grinding block and the other end provided on the inner wall of the sleeve located in the first sliding groove; Wherein, when the first spring is in a free state, the grinding block is still located in the first sliding groove.

[0007] Optionally, a control module is provided at the top of the connection frame, and the control module is respectively used to control the telescoping of the first telescopic mechanism, the telescoping of the second telescopic mechanism, the opening and closing of the first motor, and the opening and closing of the second motor.

[0008] Optionally, a first cavity is formed inside the output shaft of the second motor. A third telescopic mechanism signal-connected to the control module is provided inside the first cavity. A pressing block is provided at the telescopic end of the third telescopic mechanism; a first through hole communicating each first sliding groove and the first cavity is formed on the side wall of the sleeve. A connecting rod passing through the first through hole is provided at one end of each grinding block facing the first cavity. An adjusting plate is provided at the end of each connecting rod located inside the first cavity, and each adjusting plate abuts against the pressing block; Wherein, when the telescopic end of the third telescopic mechanism moves, the pressing block adjusts the position of each grinding block in the corresponding first sliding groove by squeezing the plurality of adjusting plates in contact.

[0009] Optionally, a fixing block is provided on the outer wall of the second motor. A guiding rod is provided at the bottom of the fixing block. The central axis of the guiding rod is parallel to the central axis of the output shaft of the second motor. A second cavity is formed inside the bottom end of the guiding rod, and two second through holes communicating with the second cavity are formed on the outer wall of the guiding rod. The central axes of the two second through holes are on the same straight line. Adjusting rods are respectively and slidably connected to the outer wall of the guiding rod and located in the two second through holes. An induction coil is provided inside the second cavity. Third through holes corresponding to the two second through holes are formed on the side wall of the induction coil. A fluxmeter electrically connected to the control module is provided on the fixing block. A fourth through hole communicating with the second cavity is formed on the side wall of the guiding rod. The measuring end of the fluxmeter extends into the interior of the induction coil through the fourth through hole for measuring the change in magnetic flux inside the induction coil. A spring piece is connected to the outer wall of the guiding rod by bolts. Card slots adapted to the spring piece are formed on the outer walls of the two adjusting rods. A pressure-sensitive sensor signal-connected to the control module is provided at the bottom of the guiding rod. Wherein, the rod diameters of the two adjusting rods are both equal to the inner diameter of the induction coil, and an external power supply for supplying power to the induction coil is provided on the fixing block.

[0010] Optionally, a plurality of jacks are formed at the bottom of the sleeve, and each jack is located between adjacent grinding blocks. An adjusting groove communicating with each jack is further formed at the bottom of the sleeve. The cross section of the adjusting groove is T-shaped. The depth of each adjusting groove is equal to the depth of each jack. A plurality of inserting rods located in the jacks are slidably connected to the bottom of the guiding rod. A clamping block is respectively provided at the same end of each inserting rod, and a connecting plate is provided at the other end. Sandpaper is provided at the bottom of the connecting plate. A third cavity is formed between the sandpaper and the connecting plate, and stones are filled inside the third cavity. Wherein, the rod diameter of the inserting rod is equal to the small-diameter end of the adjusting groove, and the outer diameter of the clamping block is equal to the aperture of the jack and the large-diameter end of the adjusting groove.

[0011] Optionally, a second sliding groove is formed at the bottom of the fixing block. A sliding block is provided at the top of the guiding rod. The sliding block is slidably connected to the fixing block through the second sliding groove, and the sliding block slides towards the central axis of the sleeve. A second spring connecting the sliding block to the fixing block is provided at one end of the sliding block facing the sleeve.

[0012] Optionally, a third sliding groove is formed at the bottom of the sliding block from bottom to top. The guiding rod is slidably connected to the sliding block through the third sliding groove. A third spring is provided at the top of the guiding rod, and the other end of the third spring is connected to the inner wall of the sliding block located in the third sliding groove.

[0013] Optionally, the clamping assembly is an air shaft, and an air pump connected to the air shaft is provided at the bottom of the support table.

[0014] Optionally, a roller in rolling contact with the surface of the gear is rotatably connected to the bottom of the guiding rod.

[0015] The beneficial effects of the present invention are: 1. Through the combined use of the first telescopic mechanism, connection frame, second telescopic mechanism, first motor, second motor, clamping assembly and grinding assembly, it is possible to polish the pitting and corrosion pits on the surface of the gear. Through the combined use of the first motor and the clamping assembly, the gear can be fixed. And after the grinding assembly finishes grinding a certain surface of the gear, the first motor drives the clamping assembly to rotate, so that the pitting and corrosion pits on another surface of the gear are presented under the grinding assembly for grinding; 2. By setting a universal joint between the second telescopic mechanism and the second motor, the second motor can rotate at multiple angles. At the same time, combined with the telescoping of the second telescopic mechanism, it is possible to achieve the surface grinding of bevel gears and other types of gears, improving the applicable range of the grinding device; 3. The grinding assembly provided at the telescopic end of the second telescopic mechanism can be adjusted according to gears of different sizes, increasing the adaptation range of the grinding device. At the same time, it can also reduce the need to additionally equip corresponding grinding tools due to different gear sizes, avoiding excessive inventory of grinding tools. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a gear grinding device applicable to slight wear on the surface of locomotive gears; Figure 2 It is a schematic structural diagram of the grinding assembly and the guide rod; Figure 3 For Figure 2 The partial schematic diagram at position A in Figure 4 For Figure 2 The partial schematic diagram at position B in Figure 5 It is a schematic structural diagram of the adjusting block, connecting rod, first spring and adjusting plate inside the sleeve; Figure 6 It is a schematic connection structure diagram of the connecting plate, inserting rod, fixed block and sandpaper; Figure 7 For Figure 2 The partial schematic diagram at position C in Figure 8 It is a schematic diagram of the position of the adjusting rod in the induction coil under a certain gear tooth gap.

[0017] Reference Signs: 1 - Support mechanism, 10 - Support table, 11 - Support frame, 12 - Through slot, 13 - First telescopic mechanism, 14 - Connection frame, 15 - Control module, 16 - Second telescopic mechanism, 17 - First motor, 18 - Second motor, 180 - Output shaft of the second motor, 181 - First cavity, 182 - Third telescopic mechanism, 183 - Pressing block, 19 - Universal joint; 2 - Grinding assembly, 20 - Sleeve, 21 - First chute, 22 - Adjusting block, 23 - First spring, 24 - First through - hole, 25 - Link rod, 26 - Adjusting plate, 27 - Jack, 28 - Adjusting groove; 3 - Fixed table; 4 - Clamping assembly; 5 - Fixed block, 50 - Guide rod, 501 - Second cavity, 502 - Second through - hole, 503 - Third through - hole, 504 - Fourth through - hole, 505 - Adjusting rod, 5051 - Card slot, 506 - Bolt, 507 - Spring piece, 508 - Induction coil, 51 - Second chute, 52 - Slide block, 53 - Second spring, 54 - Third chute, 55 - Third spring, 56 - Roller; 6 - Fluxmeter, 60 - Measuring end; 7 - Connecting plate, 70 - Plug rod, 71 - Clamping block, 72 - Sandpaper, 73 - Third cavity. Specific embodiments

[0018] The present invention will be further described in detail through specific embodiments as follows: Embodiment As Figure 1 shown, this embodiment provides a gear grinding device applicable to slight wear on the surface of locomotive gears, including: A gear grinding device applicable to slight wear on the surface of locomotive gears, including: A support mechanism 1, including a support table 10 and a support frame 11 arranged on the support table 10. A through - slot 12 is opened at the top of the support frame 11; a first telescopic mechanism 13 is arranged at the top of the support frame 11 and located within the through - slot 12. A connecting frame 14 is arranged on the telescopic end of the first telescopic mechanism 13, and the connecting frame 14 is sleeved on the top of the support frame 11; A first motor 17 is arranged at the bottom of the support table 10, and the output shaft of the first motor 17 faces the second telescopic mechanism 16; a fixed table 3 is arranged on the output shaft of the first motor 17, and a clamping assembly 4 for clamping the gear is arranged on the fixed table 3; A second telescopic mechanism 16 is arranged at the outer bottom of the connecting frame 14. The telescopic end of the second telescopic mechanism 16 is provided with a second motor 18, the output shaft 180 of the second motor faces the top of the support table 10, and a universal joint 19 is arranged between the output shaft 180 of the second motor 18 and the telescopic end of the second telescopic mechanism 16; A grinding assembly 2 is arranged on the output shaft 180 of the second motor. The working end of the grinding assembly 2 faces the clamping assembly 4 and is used for grinding the gear.

[0019] During use, the staff can adjust the starting point of the grinding component 2 by controlling the operation of the first telescopic mechanism 13. For gears such as helical gears and bevel gears, they can continuously move along the direction perpendicular to the central axis of the gear during the grinding process, and cooperate with the grinding component 2 on the second telescopic mechanism 16 to grind the above types of gears, avoiding the extra manpower and time consumed when the staff holds grinding tools such as sandpaper 72 for grinding. Specifically, first place the gear on the fixed table 3 and clamp the gear through the clamping component 4 to prevent the gear from rotating and displacing randomly. Then start the first telescopic mechanism 13, and drive the connecting frame 14 to move on the top of the support frame 11 through the telescopic end of the first telescopic mechanism 13 to adjust the starting grinding position of the grinding component 2 in the vertical direction. After the first telescopic mechanism 13 is adjusted, then start the second telescopic mechanism 16. The telescopic end of the second telescopic mechanism 16 moves back and forth in the vertical direction. During the movement, the grinding component 2 grinds the internal surface corrosion points and pits in the gear tooth gaps. During this process, due to the special structure of gears such as helical gears and bevel gears, the position of the second telescopic mechanism 16 will change with the tooth shape of the gear. Therefore, a universal joint 19 is provided between the telescopic end of the second telescopic mechanism 16 and the second motor 18, which can meet the requirement that the second motor 18 rotates a certain angle on the telescopic end of the second telescopic mechanism 16, better adapting to the special structure of gears such as helical gears and bevel gears, and thus being able to complete the grinding treatment of the internal surface of the tooth gaps of special types of gears such as helical gears and bevel gears. When the internal surface of one of the gaps in the gear is ground, drive the gear clamped by the clamping component 4 to rotate through the rotation of the first motor 17, and adjust the unground gear tooth gap on the gear in front of the grinding component 2, and continue to grind from bottom to top by the grinding component 2. During this grinding process, both the first telescopic mechanism 13 and the second telescopic mechanism 16 need to contract in the opposite direction to achieve grinding the gear tooth gaps from bottom to top.

[0020] In the above embodiments, for gears such as spur gears, after the starting grinding position of the grinding assembly 2 is adjusted by the first telescopic mechanism 13, the first telescopic mechanism 13 is closed to prevent the first telescopic mechanism 13 from telescoping during subsequent operations. Then, the angle between the second motor 18 and the second telescopic mechanism 16 is adjusted through the universal connecting member 19 so that there is a certain angle between the second motor 18 and the telescopic end of the second telescopic mechanism 16. This angle can prevent the entire grinding assembly 2 from always being in the tooth gap of the gear during grinding. After the surface of the gear tooth gap is ground subsequently, when the first motor 17 is started, the gear cannot rotate due to the obstruction of the grinding assembly 2. Then, the second telescopic mechanism 16 is started, and the telescopic end of the second telescopic mechanism 16 moves downward, driving the grinding assembly 2 to grind the gear tooth gap. When the grinding assembly 2 finishes grinding one of the gear tooth gaps in the gear, the first motor 17 is started to rotate. The gear clamped by the clamping assembly 4 on the first motor 17 starts to rotate, adjusts the ground gear tooth gap to the side away from the grinding assembly 2, and rotates the unground gear tooth gap to the side close to the grinding assembly 2. Then, the second telescopic mechanism 16 is started so that the telescopic end of the second telescopic mechanism 16 retracts upward, and the gear tooth gap is continuously ground. It should be noted that the first telescopic mechanism 13, the second telescopic mechanism 16, and the third telescopic mechanism 182 mentioned in the subsequent embodiments are all linear modules.

[0021] In one of the embodiments, as Figure 1 , Figure 2 and Figure 3 shown, the grinding assembly 2 includes: A sleeve 20 is provided at the bottom end of the output shaft 180 of the second motor. A plurality of first chutes 21 are circumferentially formed on the outer wall of the sleeve 20; the outer bottom of the sleeve 20 has a grinding surface; A grinding block is located in the first chute 21 and is slidably connected to the sleeve 20 through the first chute 21; the bottom of the grinding block is flush with the bottom grinding surface of the sleeve 20; A first spring 23 has one end provided on the outer wall of the grinding block and the other end provided on the inner wall of the sleeve 20 located in the first chute 21; Wherein, when the first spring 23 is in a free state, the grinding block is still located in the first chute 21.

[0022] When the grinding block enters the gear tooth gap, it will squeeze the grinding block according to the different sizes of the gear tooth gaps. The squeezed grinding block will apply pressure to the first spring 23 located in the first chute 21. By compressing the first spring 23, the entire grinding assembly 2 can enter the gear tooth gap for grinding.

[0023] In the above embodiments, since the grinding block needs to grind all the surfaces between the gear teeth during the grinding process, the first chute 21 opened on the output shaft 180 of the second motor needs to satisfy that the bottom of the grinding block is flush with the bottom of the output shaft 180 of the second motor, and the bottom of the sleeve 20 is adjusted to a grinding surface capable of grinding. In this way, when the second motor 18 operates, the grinding block can grind the side wall surface between the gear teeth, and the bottom grinding surface of the sleeve 20 can grind the inner bottom surface between the gear teeth, preventing the corrosion points and pits on the surface between the gear teeth from not being completely ground. It should be noted that under long-term grinding use of the grinding assembly 2, the grinding effect of the grinding block and the bottom grinding surface of the sleeve 20 will deteriorate. For easy replacement, the top of the sleeve 20 is provided with internal threads, and the outer wall surface at the bottom of the output shaft 180 of the second motor is provided with external threads, and the two are connected by a threaded connection method to achieve the effect of easy disassembly. It should also be noted here that since the rotation of the second motor 18 will drive the rotation of its own output shaft, during the rotation of the output shaft, the grinding block on the sleeve 20 will contact the surface between the gear teeth to generate a frictional force. The direction of this frictional force needs to be consistent with the locking direction of the sleeve 20 locked on the output shaft of the second motor 18 to avoid loosening of the connection between the sleeve 20 and the output shaft 180 of the second motor during the grinding process, affecting the grinding of the gear teeth by the grinding block on the sleeve 20.

[0024] In one of the embodiments, as Figure 1 shown, a control module 15 is provided on the top of the connection frame 14. The control module 15 is respectively used to control the expansion and contraction of the first expansion mechanism 13, the expansion and contraction of the second expansion mechanism 16, the opening and closing of the first motor 17, and the opening and closing of the second motor 18.

[0025] The control module 15 is composed of a processor, a memory, an input / output structure, and other necessary circuits. The control module 15 is arranged on the top of the connection frame 14, which is convenient for the staff to centrally and uniformly control the operation of each mechanism component, without the need to change positions to adjust the mechanism components at different positions, reducing the labor consumption.

[0026] In one of the embodiments, as Figure 2 and Figure 3As shown in the figure, a first cavity 181 is provided inside the output shaft 180 of the second motor. A third telescopic mechanism 182 signal-connected to the control module 15 is provided inside the first cavity 181. A pressing block 183 is provided on the telescopic end of the third telescopic mechanism 182. A first through hole 24 communicating each first chute 21 and the first cavity 181 is provided on the side wall of the sleeve 20. A connecting rod 25 passing through the first through hole 24 is provided at one end of each grinding block facing the first cavity 181. An adjusting plate 26 is provided at one end of each connecting rod 25 located inside the first cavity 181. Each adjusting plate 26 abuts against the pressing block 183. Among them, when the telescopic end of the third telescopic mechanism 182 moves, the pressing block 183 adjusts the positions of each grinding block in the corresponding first chute 21 by pressing the multiple adjusting plates 26 in contact.

[0027] During use, the operation of the third telescopic mechanism 182 is controlled by the control module 15. The telescopic end of the third telescopic mechanism 182 drives the pressing block 183 to move up and down. The pressing block 183 then adjusts the position of the adjusting block 22 in the first chute 21 through the contacting adjusting plate 26, so that the grinding assembly 2 can adapt to the tooth gaps of gears of different sizes. Specifically, when the third telescopic mechanism 182 extends downward, the pressing block 183 presses down, squeezing each adjusting plate 26. The squeezed adjusting plate 26 will move outward along the central axis direction of the connecting rod 25 through the connecting rod 25 and toward the outside of the sleeve 20. During the movement of the adjusting plate 26, the adjusting block 22 will be driven by the connecting rod 25, causing the adjusting block 22 to slide along the first chute 21. At this time, the grinding gap of the grinding assembly 2 will become larger. When the third telescopic mechanism 182 contracts upward, the pressing block 183 moves up, and the adjusting plate 26 in contact with the pressing block 183 will move toward the central axis of the sleeve 20. It should be noted here that since a first spring 23 is provided between the adjusting block 22 and the first chute 21, before the pressing block 183 moves up, the first spring 23 is in a stretched state, which will apply a pulling force toward the central axis of the sleeve 20 to the adjusting block 22. When the pressing block 183 moves up, the adjusting block 22 will move under the pulling force of the first spring 23. The adjusting block 22 then drives the adjusting plate 26 to move through the connecting rod 25 until the first spring 23 is in a free state, and then the adjusting plate 26 will stop moving. That is, the telescopic movement of the third telescopic mechanism 182 can control the grinding gap of the grinding assembly 2 to adapt to the tooth gaps of gears of different sizes.

[0028] In one embodiment, such as Figure 2 、 Figure 3 、 Figure 4 and Figure 8As shown in the figure, a fixed block 5 is provided on the outer wall of the second motor 18. A guide rod 50 is provided at the bottom of the fixed block 5. The central axis of the guide rod 50 is parallel to the central axis of the output shaft 180 of the second motor. A second cavity 501 is formed inside the bottom end of the guide rod 50, and two second through holes 502 communicating with the second cavity 501 are formed on the outer wall of the guide rod 50. The central axes of the two second through holes 502 are on the same straight line. Adjusting rods 505 located in the two second through holes 502 are respectively slidably connected to the outer wall of the guide rod 50. An induction coil 508 is provided inside the second cavity 501. Third through holes 503 corresponding to the two second through holes 502 are formed on the side wall of the induction coil 508. A fluxmeter 6 electrically connected to the control module 15 is provided on the fixed block 5. A fourth through hole 504 communicating with the second cavity 501 is formed on the side wall of the guide rod 50. The measuring end 60 of the fluxmeter 6 extends into the interior of the induction coil 508 through the fourth through hole 504 to measure the change in magnetic flux inside the induction coil 508. A spring piece 507 is connected to the outer wall of the guide rod 50 by a bolt 506. Card slots 5051 adapted to the spring piece 507 are formed on the outer walls of the two adjusting rods 505. A pressure sensor signal-connected to the control module 15 is provided at the bottom of the guide rod 50. Among them, the rod diameters of the two adjusting rods 505 are equal to the inner diameter of the induction coil 508, and an external power supply for supplying power to the induction coil 508 is provided on the fixed block 5.

[0029] During use, the guide rod 50 can guide the grinding assembly 2 according to the shape of the gear tooth gap. Specifically, the fixed block 5 is arranged on the outer wall of the second motor 18. The guide rod 50 is vertically provided at the bottom of the fixed block 5, and the central axis of the guide rod 50 is parallel to the central axis of the sleeve. When the guide rod 50 enters the gear tooth gap, the grinding assembly 2 will also enter the tooth gap adjacent to the gear tooth gap where the guide rod 50 is located, and under the guiding action of the guide rod 50, the gear tooth gap is ground.

[0030] In order for the grinding component 2 to be better adjusted according to the tooth clearance of gears of different sizes, the grinding clearance of the grinding component 2 is synchronously adjusted by means of electromagnetic induction on the guide rod 50. Specifically, when the guide rod 50 enters the tooth clearance of the gear, the two adjusting rods 505 on the guide rod 50 will be adjusted according to the size of the gear tooth clearance. At this time, the induction coil 508 is energized under the operation of an external power supply. The energized induction coil 508 will generate a magnetic field, and the magnetic flux passing through the cross-section inside the induction coil 508 will be measured by the measuring end 60 of the fluxmeter 6 in the guide rod 50. During the movement of the adjusting rod 505, the adjusting rod 505 will cut the magnetic induction lines in the induction coil 508, which will cause the magnetic flux to change at the cross-section where the adjusting rod 505 moves. According to the calculation formula of magnetic flux, φ = BS, where φ represents magnetic flux, B represents magnetic induction intensity, and S represents the effective area (i.e., the area perpendicular to the magnetic field direction). When the magnetic induction intensity B is constant, the cross-sectional area S changes, and the magnetic flux φ also changes. The fluxmeter 6 will record the change value of the magnetic flux measured by the measuring end 60. This change value is set as x, and the change value x represents the change value x of the cross-sectional area S before and after the movement of the adjusting rod 505. Then, this change value x is transmitted to the control module 15 through the fluxmeter 6. After formula conversion, the specific distance that the adjusting rod 505 moves can be obtained. Here, the distance that the adjusting rod 505 moves is defined as y. After obtaining the distance y, the control module 15 transmits a signal to the third telescopic mechanism 182 to control the third telescopic mechanism 182 to move up and down a specific distance, thereby driving the pressing block 183 to squeeze each adjusting plate 26, and finally achieving synchronous adjustment of the grinding distance of the grinding component 2, so that the grinding distance of the grinding component 2 is always the same as the distance between the two ends of the adjusting rod 505, and the grinding clearance of the grinding component 2 can be synchronously adjusted more accurately according to the size of the gear tooth clearance. In the above process, the function of the spring piece 507 is to be able to dial the adjusting rod 505 back to its original position, so as to facilitate the next adjustment of the adjusting rod 505 according to the tooth clearance of gears of different sizes.

[0031] In the above embodiments, the specific control logic after the cooperation of the control module 15 and the pressure-sensitive sensor is as follows: First, manually adjust the first telescopic mechanism 13 and the second telescopic mechanism 16 so that the grinding assembly 2 is located in the tooth gap on the gear, and the pressure-sensitive sensor at the bottom of the guide rod 50 presses against the surface of the gear tooth gap to trigger the pressure-sensitive sensor. At this time, select the grinding method according to the type of gear. The first grinding method is for helical gears and bevel gears. By starting the control module 15, when the pressure on the pressure-sensitive sensor reaches the threshold value, the sensor sends a signal to the control module 15, and the control module 15 controls the operation of the first telescopic mechanism 13. It should be noted that as shown in the figure, the extension direction of the first telescopic mechanism 13 is set as the a direction, and the contraction direction is set as the b direction. In addition, the initial position of the grinding assembly 2 during operation is at the top of the gear. Therefore, after the control module 15 receives the signal from the pressure-sensitive sensor, the control module 15 controls the first telescopic mechanism 13 to extend in the a direction. At the same time, the control module 15 also transmits the signal to the second telescopic mechanism 16 and the second motor 18 respectively. When controlling the second telescopic mechanism 16, the second telescopic mechanism 16 moves downward so that the grinding assembly 2 can always fit on the gear surface for grinding. The control module 15 transmits the signal to the second motor 18 to control the operation of the second motor 18, thereby driving the grinding assembly 2 to grind the tooth gap surface of the gear. Until the guide rod 50 moves out of the tooth gap of the gear, at this time, no pressure is generated on the pressure-sensitive sensor, and the pressure-sensitive sensor will transmit a signal to the control module 15. After receiving the signal, the control module 15 will simultaneously send control signals to the first telescopic mechanism 13 and the first motor 17, control the first telescopic mechanism 13 to contract in the b direction, and control the operation of the first motor 17. The operation of the first motor 17 can adjust the gear clamped by the clamping assembly 4, rotate the ground tooth gap surface of the gear to the rear, and rotate the unground tooth gap of the gear to a position where the grinding assembly 2 can enter.

[0032] The second method is for types such as spur gears. The control module 15 does not need to control the expansion and contraction of the first expansion mechanism 13. After the signal of the pressure-sensitive sensor is transmitted to the control module 15, the control module 15 controls the operation of the second expansion mechanism 16, and the second expansion mechanism 16 moves downward. At the same time, the control module 15 also controls the operation of the second motor 18, and the second motor 18 rotates to drive the grinding assembly 2 to grind the surface of the gear tooth gap from top to bottom. When the guide rod 50 moves out of the gear tooth gap, the pressure-sensitive sensor is not under pressure. At this time, the pressure-sensitive sensor transmits the signal to the control module 15, and the control module 15 controls the operation of the first motor 17. The first motor 17 starts to rotate, and the gear on the clamping assembly 4 also rotates accordingly. The ground surface in the gear tooth gap will rotate to the rear with the rotation of the gear, and then the unground surface of the gear tooth gap will be exposed. At the same time, the control module 15 will control the second expansion mechanism 16 to move upward. During this period, the second motor 18 is always running. After the grinding assembly 2 on the second motor 18 enters the surface of the new unground gear tooth gap, it directly starts to grind from bottom to top.

[0033] In one embodiment, as Figure 5 and Figure 6 shown, a plurality of jacks 27 are provided at the bottom of the sleeve 20, and each jack 27 is located between adjacent grinding blocks; an adjustment groove 28 communicating with each jack 27 is also provided at the bottom of the sleeve 20, and the cross-section of the adjustment groove 28 is T-shaped; the groove depth of each adjustment groove 28 is equal to the hole depth of each jack 27; a plurality of plug rods 70 located in the jacks 27 are slidably connected to the bottom of the guide rod 50. A clamping block 71 is provided at the same end of each plug rod 70, and a connecting plate 7 is provided at the other end. A sandpaper 72 is provided at the bottom of the connecting plate 7, and there is a third cavity between the sandpaper 72 and the connecting plate 7, and stones are filled in the interior of the third cavity; Wherein, the rod diameter of the plug rod 70 is equal to the small-diameter end of the adjustment groove 28, and the outer diameter of the clamping block 71 is equal to the hole diameter of the jack 27 and the large-diameter end of the adjustment groove 28.

[0034] When the inner bottom surface between the gear teeth is a curved surface, it is difficult for the grinding surface at the bottom of the sleeve 20 to adapt to grinding. To improve the applicable range of the grinding assembly 2, a component equivalent to a grinding block is installed at the bottom of the sleeve 20. Specifically, this component consists of a connecting plate 7, a plug rod 70, a fixing block 5, sandpaper 72, and stones. The plug rod 70 is vertically arranged on the connecting plate 7, and the other end of the plug rod 70 is provided with the fixing block 5. The sandpaper 72 is connected to the edge portion of the connecting plate 7 through its own edge portion, so that there is a third cavity between the sandpaper 72 and the connecting plate 7, and stones are filled in the third cavity. The bottom of the sleeve 20 is respectively provided with a jack 27 and an adjustment groove 28. The jack 27 and the adjustment groove 28 are located between every two adjacent adjustment blocks 22. The jack 27 and the adjustment groove 28 are communicated with each other. The cross-section of the adjustment groove 28 is T-shaped. The jack 27 is located in the middle of the adjustment groove 28. The aperture size of the jack 27 is larger than the groove width size of the adjustment groove 28. Inside the adjustment groove 28, when moving from the jack 27 towards the edge of the adjustment groove 28, the internal groove width of the adjustment groove 28 gradually becomes smaller, but it will not be equal to the small-diameter end of the adjustment groove 28. The purpose is to make the fixing block 5 clamped in the adjustment groove 28 by gradually reducing the groove width of the large-diameter end of the adjustment groove 28. The specific installation method is to align the plug rod 70 on the connecting plate 7 with the jack 27 at the bottom of the sleeve 20, so that the fixing block 5 on the plug rod 70 enters the jack 27, and then rotate the connecting plate 7 so that the fixing block 5 moves into the adjustment groove 28 and will not fall off from the adjustment groove 28. It should be noted here that the rotation direction of the connecting plate 7 needs to be opposite to the rotation direction of the sleeve 20, aiming to prevent the connecting plate 7 from falling off the sleeve 20. When starting grinding after the installation is completed, the stones in the third cavity will compress the space with each other, so that the sandpaper 72 can tightly adhere to the inner bottom surface of the gear tooth gap, and the grinding of the inner bottom surface of the gear tooth gap is completed.

[0035] In one embodiment, as Figure 2 shown, a second sliding groove 51 is provided at the bottom of the fixing block 5, a slider 52 is provided at the top of the guiding rod 50, and the slider 52 is slidably connected to the fixing block 5 through the second sliding groove 51, and the slider 52 slides towards the central axis of the sleeve 20; one end of the slider 52 facing the sleeve 20 is provided with a second spring 53 connected to the fixing block 5.

[0036] During use, the guide rod 50 can move on the fixed block 5 through the cooperation of the slider 52 and the chute, and the moving direction is perpendicular to the central axis of the sleeve 20. The purpose is that when the guide rod 50 moves in the gear tooth clearance, the corrosion points and pits in the gear tooth clearance will affect the movement of the guide rod 50. If the guide rod 50 and the fixed block 5 are integrally formed, or fixed connection methods such as threaded connection are used, when the guide rod 50 touches the corrosion points and pits, and considering the relatively hard texture of the corrosion points and pits, the guide rod 50 may be bent and deformed to better pass through the gear tooth clearance. Over time, the guiding function that the guide rod 50 can play will become worse and worse. Therefore, by arranging the slider 52 at the top of the guide rod 50, and the slider 52 is slidably connected to the fixed block 5 through the second chute 51, when the guide rod 50 encounters the corrosion points and pits in the gear tooth clearance, the direction of the guide rod 50 towards the sleeve 20 can be adjusted by the movement of the slider 52, preventing the guide rod 50 from bending and deforming, and after passing through the corrosion points and pits, it can return to its original position through the deformation of the second spring 53.

[0037] In one embodiment, as Figure 7 shown, a third chute 54 is opened at the bottom of the slider 52 from bottom to top, and the guide rod 50 is slidably connected to the slider 52 through the third chute 54; a third spring 55 is provided at the top of the guide rod 50, and the other end of the third spring 55 is connected to the inner wall of the slider 52 located in the third chute 54.

[0038] During use, the guide rod 50 can move up and down along the central axis direction of the guide rod 50 on the slider 52 through the third chute 54. The purpose is to prevent the movement of the guide rod 50 from being affected when the guide rod 50 encounters corrosion points on the inner bottom surface of the gear tooth clearance and the corrosion points are not polished. It should be noted here that when the guide rod 50 first enters the gear tooth clearance, the gear tooth clearance has not been polished at this time, and there will be corrosion points and pits affecting the movement of the guide rod 50. The sliding connection of the guide rod 50 through the third chute 54 and the slider 52 can avoid the influence of the corrosion points and pits on the movement of the guide rod 50.

[0039] In one embodiment, the clamping assembly 4 is an air shaft, and an air pump (not shown in the figure) connected to the air shaft is provided at the bottom of the support table 10.

[0040] During use, the clamping assembly 4 is selected as an air shaft, and an air pump is equipped on the support table 10. The air pump is connected to the air shaft. Since the middle part of the gear is hollow, the selection of the air shaft is very suitable for fixing the gear.

[0041] In one embodiment, as Figure 2 and Figure 4 shown, a roller 56 that rolls on the gear surface is rotatably connected to the bottom of the guide rod 50.

[0042] During use, the guide rod 50 will move in the tooth space of the gear. When there are pitting and corrosion pits in the tooth space of the gear, the pitting and corrosion pits will hinder the normal movement of the guide rod 50. The setting of the roller 56 facilitates the normal movement of the guide rod 50.

[0043] The above are only embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicability of the patent. The protection scope required by this application shall be subject to the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. A gear grinding device applicable to the slight wear on the surface of locomotive gears, characterized in that, Comprising: A support mechanism, including a support platform and a support frame arranged on the support platform. A through groove is formed at the top of the support frame; a first telescopic mechanism is arranged at the top of the support frame and located in the through groove. A connecting frame is arranged at the telescopic end of the first telescopic mechanism, and the connecting frame is sleeved on the top of the support frame; a first motor is arranged at the bottom of the support platform, and the output shaft of the first motor faces the second telescopic mechanism; a fixed platform is arranged on the output shaft of the first motor, and a clamping assembly for clamping a gear is arranged on the fixed platform. A second telescopic mechanism is arranged at the outer bottom of the connecting frame. A second motor is arranged at the telescopic end of the second telescopic mechanism, and the output shaft of the second motor faces the top of the support platform. A universal joint is arranged between the second motor and the telescopic end of the second telescopic mechanism; a grinding assembly is arranged on the output shaft of the second motor, and the working end of the grinding assembly faces the clamping assembly for grinding the gear.

2. The gear grinding device applicable to slight wear on the surface of locomotive gears according to claim 1, characterized in that, The grinding assembly includes: a sleeve arranged at the bottom end of the output shaft of the second motor. A plurality of first sliding grooves are circumferentially formed on the outer wall of the sleeve; the outer bottom of the sleeve has a grinding surface; a grinding block is located in the first sliding groove and is slidably connected to the sleeve through the first sliding groove; the bottom of the grinding block is flush with the bottom grinding surface of the sleeve; a first spring, one end of which is arranged on the outer wall of the grinding block and the other end is arranged on the inner wall of the sleeve located in the first sliding groove; wherein, when the first spring is in a free state, the grinding block is still located in the first sliding groove.

3. The gear grinding device applicable to slight wear on the surface of locomotive gears according to claim 2, characterized in that, A control module is arranged at the top of the connecting frame, and the control module is respectively used to control the telescoping of the first telescopic mechanism, the telescoping of the second telescopic mechanism, the opening and closing of the first motor, and the opening and closing of the second motor.

4. The gear grinding device applicable to the slight wear on the surface of locomotive gears according to claim 3, characterized in that, A first cavity is formed inside the output shaft of the second motor. A third telescopic mechanism signal-connected to the control module is arranged inside the first cavity. A pressing block is arranged at the telescopic end of the third telescopic mechanism; a first through hole communicating each first sliding groove and the first cavity is formed on the side wall of the sleeve. A connecting rod passing through the first through hole is arranged at one end of each grinding block facing the first cavity. An adjusting plate is arranged at one end of each connecting rod located inside the first cavity, and each adjusting plate abuts against the pressing block; wherein, when the telescopic end of the third telescopic mechanism moves, the pressing block adjusts the position of each grinding block in the corresponding first sliding groove by squeezing the plurality of adjusting plates in contact.

5. The gear grinding device applicable to slight wear on the surface of locomotive gears according to claim 4, characterized in that, A fixing block is provided on the outer wall of the second motor. A guiding rod is provided at the bottom of the fixing block, and the central axis of the guiding rod is parallel to the central axis of the output shaft of the second motor. A second cavity is formed inside the bottom end of the guiding rod, and two second through holes communicating with the second cavity are formed on the outer wall of the guiding rod. The central axes of the two second through holes are on the same straight line. Adjusting rods are respectively and slidably connected to the outer wall of the guiding rod and are located in the two second through holes. An induction coil is provided inside the second cavity, and third through holes corresponding to the two second through holes are formed on the side wall of the induction coil. A fluxmeter electrically connected to the control module is provided on the fixing block. A fourth through hole communicating with the second cavity is formed on the side wall of the guiding rod, and the measuring end of the fluxmeter extends into the induction coil through the fourth through hole to measure the change in magnetic flux inside the induction coil. A spring piece is connected to the outer wall of the guiding rod by a bolt, and clamping grooves adapted to the spring piece are formed on the outer walls of the two adjusting rods. A pressure-sensitive sensor signal-connected to the control module is provided at the bottom of the guiding rod. Wherein, the rod diameters of the two adjusting rods are equal to the inner diameter of the induction coil, and an external power supply for supplying power to the induction coil is provided on the fixing block.

6. The gear grinding device applicable to slight wear on the surface of locomotive gears according to claim 3 or 5, characterized in that, A plurality of jacks are formed at the bottom of the sleeve, and each jack is located between adjacent grinding blocks. An adjusting groove communicating with each jack is further formed at the bottom of the sleeve, and the cross section of the adjusting groove is T-shaped. The depth of each adjusting groove is equal to the depth of each jack. A plurality of inserting rods located in the jacks are slidably connected to the bottom of the guiding rod. A clamping block is provided at the same end of each inserting rod, and a connecting plate is provided at the other end. A sandpaper is provided at the bottom of the connecting plate, and a third cavity is formed between the sandpaper and the connecting plate. Stones are filled inside the third cavity. Wherein, the rod diameter of the inserting rod is equal to the small-diameter end of the adjusting groove, and the outer diameter of the clamping block is equal to the aperture of the jack and the large-diameter end of the adjusting groove.

7. The gear grinding device applicable to slight wear on the surface of locomotive gears according to claim 5, characterized in that, A second sliding groove is formed at the bottom of the fixing block. A sliding block is provided at the top of the guiding rod, and the sliding block is slidably connected to the fixing block through the second sliding groove and slides towards the central axis of the sleeve. A second spring connecting the sliding block to the fixing block is provided at one end of the sliding block facing the sleeve.

8. The gear grinding device applicable to the slight wear on the surface of locomotive gears according to claim 5, characterized in that, A third sliding groove is formed at the bottom of the sliding block from bottom to top. The guiding rod is slidably connected to the sliding block through the third sliding groove. A third spring is provided at the top of the guiding rod, and the other end of the third spring is connected to the inner wall of the sliding block located in the third sliding groove.

9. The gear grinding device applicable to the slight wear on the surface of locomotive gears according to claim 6, characterized in that, The clamping assembly is an air shaft, and an air pump connected to the air shaft is provided at the bottom of the support platform.

10. The gear grinding device applicable to the slight wear on the surface of locomotive gears according to claim 5, characterized in that, A roller in rolling contact with the surface of the gear is rotatably connected to the bottom of the guiding rod.

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