Dynamic grinding system for collecting ring of hydraulic generator

Abstract

The invention provides a dynamic grinding system for a collecting ring of a hydro-generator, and the dynamic grinding system comprises a motion platform which comprises a first motion mechanism moving along the radial direction of the collecting ring and a second motion mechanism moving along the axial direction of the collecting ring; the grinding end of the grinding device is arranged on the second movement mechanism; and the control module is used for controlling the first movement mechanism to drive the grinding end of the grinding device to move in the radial direction of the collecting ring and controlling the second movement mechanism to drive the grinding end of the grinding device to reciprocate at a preset speed in the axial direction of the collecting ring when the collecting ring rotates. According to the dynamic grinding system for the collecting ring of the hydro-generator, dynamic grinding of the collecting ring is achieved, the problems of surface oxidation, surface electrocorrosion spots, surface high and low points and the like are effectively solved, meanwhile, dismounting of the collecting ring is avoided, the high operation efficiency of the hydro-generator is guaranteed, and the service life of the hydro-generator is prolonged. And the maintenance cost of the hydraulic generator is effectively reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of collector ring grinding, and in particular, to a dynamic grinding system for a collector ring of a hydro-generator. Background Art

[0002] The collector ring of a hydro-generator is a key connecting component between the rotor excitation system and the external circuit, responsible for transmitting direct current to the rotor winding. Its surface roughness directly affects the contact stability of carbon brushes, the wear rate, and the operating efficiency of the generator.

[0003] After the collector ring has been operating for a long time, problems such as surface oxidation, surface electro-corrosion points, and surface highs and lows will occur. The current solution is to disassemble and grind the collector ring, but this method requires the hydro-generator to be shut down, seriously affecting the operating efficiency of the hydro-generator. At the same time, the disassembly and assembly process of the collector ring is relatively complex, consuming a large amount of manpower and material resources, resulting in a high maintenance cost for the hydro-generator. Summary of the Invention

[0004] The present disclosure aims to solve at least one of the technical problems in the related art to some extent.

[0005] To this end, the purpose of the present disclosure is to provide a dynamic grinding system for a collector ring of a hydro-generator.

[0006] To achieve the above object, the present disclosure provides a dynamic grinding system for a collector ring of a hydro-generator, including: a moving platform, the moving platform includes: a first moving mechanism that moves radially along the collector ring and a second moving mechanism that moves axially along the collector ring, the second moving mechanism is disposed on the first moving mechanism; a grinding device, the grinding end of the grinding device is disposed on the second moving mechanism; a control module, the control module is configured to, when the collector ring rotates, control the first moving mechanism to drive the grinding end of the grinding device to move radially along the collector ring, so that the grinding end of the grinding device abuts against the collector ring with a preset pressure, and control the second moving mechanism to drive the grinding end of the grinding device to reciprocate axially along the collector ring at a preset speed, so that the grinding end of the grinding device dynamically grinds the collector ring.

[0007] Optionally, the grinding device includes: a grinding base disposed on the second motion mechanism; a grinding wheel rotatably and detachably disposed on the grinding base, with the axial direction of the grinding wheel perpendicular to the radial direction of the slip ring, and the grinding wheel is used to abut against the slip ring with the preset pressure. Wherein, the grinding device is used to grind the slip ring with the grinding wheel of the first mesh number for the first time, then grind the slip ring with the grinding wheel of the second mesh number for the second time, and finally grind the slip ring with the grinding wheel of the third mesh number for the third time; the first mesh number is less than the second mesh number, and the second mesh number is less than the third mesh number.

[0008] Optionally, the grinding device further includes: a driving mechanism, with the power output end of the driving mechanism connected to the power input end of the grinding wheel. Wherein, the signal output end of the control module is connected to the signal input end of the driving mechanism, and the control module is used to control the driving mechanism to drive the grinding wheel to rotate at a corresponding speed according to the rotation speed of the slip ring.

[0009] Optionally, the driving mechanism includes: a driving motor disposed on the grinding base, with the power output end of the driving motor connected to the power input end of the grinding wheel, and the signal input end of the driving motor connected to the signal output end of the control module.

[0010] Optionally, the driving mechanism includes: a flexible shaft machine, with the power output end of the flexible shaft machine connected to the power input end of the grinding wheel, and the signal input end of the flexible shaft machine connected to the signal output end of the control module.

[0011] Optionally, the grinding wheel includes: a wheel shaft rotatably and detachably disposed on the grinding base, with the axial direction of the wheel shaft perpendicular to the radial direction of the slip ring; a flexible hub sleeved on the wheel shaft, and a plurality of hollow grooves are arranged along the circumferential direction of the wheel shaft on the flexible hub; a grinding belt sleeved on the flexible hub, and the grinding belt is used to abut against the slip ring.

[0012] Optionally, the grinding device further includes: a buffer base rotatably disposed on the grinding base, and the buffer base is movably arranged along the radial direction of the slip ring, and the grinding wheel is rotatably and detachably disposed on the buffer base; a spring disposed between the buffer base and the grinding base.

[0013] Optionally, the first motion mechanism includes: a first pedestal; a second pedestal slidably disposed on the first pedestal along the radial direction of the slip ring, and the second motion mechanism is disposed on the second pedestal; a first lead screw rotatably disposed on the first pedestal, and the first lead screw is in threaded driving connection with the second pedestal; a first driving member disposed on the first pedestal, and a power output end of the first driving member is in driving connection with a power input end of the first lead screw; wherein, a signal output end of the control module is connected to a signal input end of the first driving member, and the control module is configured to control the first driving member to drive the first lead screw to rotate, so that the second pedestal moves along the radial direction of the slip ring.

[0014] Optionally, the second motion mechanism includes: a third pedestal disposed on the first motion mechanism; a fourth pedestal slidably disposed on the third pedestal along the axial direction of the slip ring, and a grinding end of the grinding device is disposed on the fourth pedestal; a second lead screw rotatably disposed on the third pedestal, and the second lead screw is in threaded driving connection with the fourth pedestal; a second driving member disposed on the third pedestal, and a power output end of the second driving member is in driving connection with a power input end of the second lead screw; wherein, a signal output end of the control module is connected to a signal input end of the second driving member, and the control module is configured to control the second driving member to drive the second lead screw to rotate, so that the fourth pedestal moves along the axial direction of the slip ring.

[0015] Optionally, the motion platform further includes: a base fixedly disposed relative to the hydrogenerator detachably, and a bearing surface of the base is perpendicular to the axial direction of the slip ring, and the first motion mechanism is disposed on the bearing surface of the base.

[0016] The technical solution provided by the present disclosure may include the following beneficial effects:

[0017] Since the second motion mechanism is disposed on the first motion mechanism, and the grinding end of the grinding device is disposed on the second motion mechanism, the grinding end of the grinding device can move along the radial direction of the slip ring by driving of the first motion mechanism, and can move along the axial direction of the slip ring by driving of the second motion mechanism. Thus, when the slip ring rotates, the control module controls the first motion mechanism and the second motion mechanism, so that the grinding end of the grinding device abuts against the slip ring with a preset pressure and reciprocates along the axial direction of the slip ring at a preset speed, thereby realizing dynamic grinding of the slip ring, effectively solving problems such as surface oxidation, surface electro-corrosion points, and surface high and low points, and avoiding disassembly of the slip ring at the same time. This not only ensures high operating efficiency of the hydrogenerator, but also effectively reduces the maintenance cost of the hydrogenerator.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 is a schematic structural diagram of a dynamic grinding system for a collector ring of a hydrogenerator proposed in an embodiment of the present disclosure (driven by a driving motor);

[0021] Figure 2 is a schematic structural diagram of a dynamic grinding system for a collector ring of a hydrogenerator proposed in an embodiment of the present disclosure (driven by a flexible shaft machine);

[0022] Figure 3 is a schematic structural diagram of a dynamic grinding system for a collector ring of a hydrogenerator proposed in an embodiment of the present disclosure (driven without power);

[0023] Figure 4 is a schematic structural diagram of the dynamic grinding system for a collector ring of a hydrogenerator at the buffer seat in an embodiment of the present disclosure;

[0024] As shown in the figure: 1. First motion mechanism, 2. Second motion mechanism, 3. Grinding device;

[0025] 31. Grinding seat;

[0026] 32. Grinding wheel;

[0027] 33. Driving motor, 34. Flexible shaft machine, 35. Buffer seat, 36. Spring;

[0028] 4. Base;

[0029] 100. Collector ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present disclosure and should not be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0031] As Figure 1 , Figure 2 and Figure 3As shown in the figure, an embodiment of the present disclosure provides a dynamic grinding system for a collector ring 100 of a hydrogenerator, including: a moving platform, a grinding device 3, and a control module (not shown in the figure). The moving platform includes: a first moving mechanism 1 that moves radially along the collector ring 100 and a second moving mechanism 2 that moves axially along the collector ring 100. The second moving mechanism 2 is arranged on the first moving mechanism 1, and the grinding end of the grinding device 3 is arranged on the second moving mechanism 2. The control module is configured to, when the collector ring 100 rotates, control the first moving mechanism 1 to drive the grinding end of the grinding device 3 to move radially along the collector ring 100, so that the grinding end of the grinding device 3 abuts against the collector ring 100 with a preset pressure, and control the second moving mechanism 2 to drive the grinding end of the grinding device 3 to reciprocate axially along the collector ring 100 at a preset speed, so that the grinding end of the grinding device 3 dynamically grinds the collector ring 100.

[0032] It can be understood that, since the second moving mechanism 2 is arranged on the first moving mechanism 1 and the grinding end of the grinding device 3 is arranged on the second moving mechanism 2, the grinding end of the grinding device 3 can move radially along the collector ring 100 by the drive of the first moving mechanism 1 and can move axially along the collector ring 100 by the drive of the second moving mechanism 2. Thus, when the collector ring 100 rotates, the control module controls the first moving mechanism 1 and the second moving mechanism 2, so that the grinding end of the grinding device 3 abuts against the collector ring 100 with a preset pressure and reciprocates axially along the collector ring 100 at a preset speed, thereby realizing the dynamic grinding of the collector ring 100. While effectively solving problems such as surface oxidation, surface electro-corrosion points, and surface highs and lows, the disassembly of the collector ring 100 is avoided. This not only ensures a high operating efficiency of the hydrogenerator but also effectively reduces the maintenance cost of the hydrogenerator.

[0033] It should be noted that the moving platform is used to realize the two-dimensional movement of the grinding end of the grinding device 3. Specifically, the first moving mechanism 1 is used for the movement of the grinding end of the grinding device 3 radially along the collector ring 100, and the second moving mechanism 2 is used for the movement of the grinding end of the grinding device 3 axially along the collector ring 100. Thus, through the cooperation of the first moving mechanism 1 and the second moving mechanism 2, it is possible to make the grinding end of the grinding device 3 abut against the collector ring 100 or move away from the collector ring 100, and it is possible to make the grinding end of the grinding device 3 reciprocally grind the collector ring 100 or switch between the two conductive rings of the collector ring 100. The specific types of the first moving mechanism 1 and the second moving mechanism 2 can be set according to actual needs and are not limited thereto.

[0034] The grinding device 3 is used to grind the collector ring 100 with the grinding end to reduce the surface roughness of the collector ring 100 and solve problems such as surface oxidation, surface electro-corrosion points, and surface highs and lows existing in the collector ring 100. The specific type of the grinding device 3 can be set according to actual needs and is not limited thereto.

[0035] The control module is used to control the first motion mechanism 1 and the second motion mechanism 2 to achieve automatic grinding of the grinding end of the grinding device 3 against the slip ring 100. The specific type of the control module can be set according to actual needs and is not limited thereto. Among them, the control module can cooperate with a pressure sensor to obtain the abutting pressure of the grinding end of the grinding device 3 on the slip ring 100, cooperate with a distance sensor to obtain the distance and relative position between the grinding end of the grinding device 3 and the slip ring 100, and cooperate with a speed sensor to obtain the moving speed of the grinding end of the grinding device 3, etc.

[0036] Such as Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the grinding device 3 includes a grinding base 31 and a grinding wheel 32. The grinding base 31 is arranged on the second motion mechanism 2, and the grinding wheel 32 is rotatably arranged on the grinding base 31 detachably, and the axial direction of the grinding wheel 32 is perpendicular to the radial direction of the slip ring 100. The grinding wheel 32 is used to abut against the slip ring 100 with a preset pressure. Among them, the grinding device 3 is used to grind the slip ring 100 with a grinding wheel 32 of a first mesh number for a first period of time, then grind the slip ring 100 with a grinding wheel 32 of a second mesh number for a second period of time, and finally grind the slip ring 100 with a grinding wheel 32 of a third mesh number for a third period of time; the first mesh number is less than the second mesh number, and the second mesh number is less than the third mesh number.

[0037] It can be understood that since the grinding base 31 is arranged on the second motion mechanism 2 and the grinding wheel 32 is rotatably arranged on the grinding base 31 detachably, the grinding base 31 can utilize the cooperation of the first motion mechanism 1 and the second motion mechanism 2 to realize the movement of the slip ring 100 in the radial and axial directions, so that the grinding wheel 32 can effectively abut against the slip ring 100 and realize the grinding of the slip ring 100.

[0038] Moreover, the grinding device 3 grinds the slip ring 100 with a grinding wheel 32 of a first mesh number for a first period of time, then grinds the slip ring 100 with a grinding wheel 32 of a second mesh number for a second period of time, and finally grinds the slip ring 100 with a grinding wheel 32 of a third mesh number for a third period of time. Thus, the slip ring 100 is ground with grinding wheels 32 with gradually increasing mesh numbers, thereby realizing high-efficiency and high-quality grinding of the slip ring 100.

[0039] It should be noted that the grinding base 31 is used to be arranged on the second motion mechanism 2 to utilize the cooperation of the first motion mechanism and the second motion mechanism 2 to realize the movement of the grinding wheel 32 in the radial and axial directions of the slip ring 100. The specific type of the grinding base 31 can be set according to actual needs and is not limited thereto. By way of example, the grinding base 31 can be a seat structure and is detachably fixed to the second motion mechanism 2 through a plurality of bolts.

[0040] The grinding wheel 32 is used to grind the slip ring 100. The specific type of the grinding wheel 32 can be set according to actual needs, and there is no limitation in this regard. By way of example, the shaft of the grinding wheel 32 is rotatably arranged on the grinding seat 31 through a bearing, and the bearing is detachably limited on the grinding seat 31 by bolts.

[0041] Among them, the first mesh number, the second mesh number, and the third mesh number, as well as the first time, the second time, and the third time, can be set according to actual needs, and there is no limitation in this regard.

[0042] By way of example, when the grinding wheel 32 is a honing wheel and has no power drive, the axial direction of the grinding wheel 32 and the axial direction of the slip ring 100 form an angle of 20 degrees - 45 degrees. The grinding wheel 32 utilizes the rotation of the slip ring 100 to grind the slip ring 100. The first mesh number can be 60, the second mesh number can be 120, the third mesh number can be 180, and the first time, the second time, and the third time can all be 6h. That is to say, the grinding device 3 grinds the slip ring 100 with the grinding wheel 32 of 60 mesh for 6h (rough grinding), then grinds the slip ring 100 with the grinding wheel 32 of 120 mesh for 6h (fine grinding), and finally grinds the slip ring 100 with the grinding wheel 32 of 180 mesh for 6h (precision grinding).

[0043] In some embodiments, the grinding device 3 further includes: a driving mechanism, and the power output end of the driving mechanism is connected to the power input end of the grinding wheel 32. Among them, the signal output end of the control module is connected to the signal input end of the driving mechanism, and the control module is used to control the driving mechanism to drive the grinding wheel 32 to rotate at a corresponding speed according to the rotation speed of the slip ring 100.

[0044] It can be understood that since the power output end of the driving mechanism is connected to the power input end of the grinding wheel 32, and the signal output end of the control module is connected to the signal input end of the driving mechanism, the control module can control the driving mechanism to drive the grinding wheel 32 to rotate at a corresponding speed according to the rotation speed of the slip ring 100, so as to realize high-quality and high-efficiency grinding of the slip ring 100 by using the grinding wheel 32.

[0045] It should be noted that the driving mechanism is used to drive the grinding wheel 32 to rotate, so as to grind the rotating slip ring 100 with the rotating grinding wheel 32. The specific type of the driving mechanism can be set according to actual needs, and there is no limitation in this regard.

[0046] Among them, the grinding wheel 32 can be a sand belt wheel, and the rotation direction of the grinding wheel 32 is the same as the rotation direction of the slip ring 100, and both can be clockwise rotation.

[0047] Such as Figure 1As shown, in some embodiments, the driving mechanism includes: a driving motor 33, the driving motor 33 is arranged on the grinding base 31, and the power output end of the driving motor 33 is connected to the power input end of the grinding wheel 32, and the signal input end of the driving motor 33 is connected to the signal output end of the control module.

[0048] It can be understood that since the power output end of the driving motor 33 is connected to the power input end of the grinding wheel 32, and the signal input end of the driving motor 33 is connected to the signal output end of the control module, the control module can control the driving motor 33 to drive the grinding wheel 32 to rotate at a corresponding speed according to the rotation speed of the slip ring 100, so as to realize high-quality and high-efficiency grinding of the slip ring 100 by using the grinding wheel 32.

[0049] It should be noted that when the driving motor 33 drives the grinding wheel 32 to rotate as the driving mechanism, the axial direction of the grinding wheel 32 is parallel to the axial direction of the slip ring 100, the first mesh number can be 80, the second mesh number can be 120, the third mesh number can be 240, and the first time, the second time and the third time can all be 3h. That is to say, the grinding device 3 grinds the slip ring 100 with the grinding wheel 32 of 80 meshes and lasts for 3h (rough grinding), then grinds the slip ring 100 with the grinding wheel 32 of 120 meshes and lasts for 3h (fine grinding), and finally grinds the slip ring 100 with the grinding wheel 32 of 240 meshes and lasts for 3h (precision grinding).

[0050] As Figure 2 shown, in some embodiments, the driving mechanism includes: a flexible shaft machine 34, the power output end of the flexible shaft machine 34 is connected to the power input end of the grinding wheel 32, and the signal input end of the flexible shaft machine 34 is connected to the signal output end of the control module.

[0051] It can be understood that since the power output end of the flexible shaft machine 34 is connected to the power input end of the grinding wheel 32, and the signal input end of the flexible shaft machine 34 is connected to the signal output end of the control module, the control module can control the flexible shaft machine 34 to drive the grinding wheel 32 to rotate at a corresponding speed according to the rotation speed of the slip ring 100, so as to realize high-quality and high-efficiency grinding of the slip ring 100 by using the grinding wheel 32.

[0052] It should be noted that when the flexible shaft machine 34 drives the grinding wheel 32 to rotate as the driving mechanism, the axial direction of the grinding wheel 32 is parallel to the axial direction of the slip ring 100, the first mesh number can be 60, the second mesh number can be 120, the third mesh number can be 180, and the first time, the second time and the third time can all be 6h. That is to say, the grinding device 3 grinds the slip ring 100 with the grinding wheel 32 of 60 meshes and lasts for 6h (rough grinding), then grinds the slip ring 100 with the grinding wheel 32 of 120 meshes and lasts for 6h (fine grinding), and finally grinds the slip ring 100 with the grinding wheel 32 of 180 meshes and lasts for 6h (precision grinding).

[0053] Among them, the flexible shaft machine 34 is adopted, so that when the grinding of the slip ring 100 lasts for too long, it can protect the abrasive belt wheel motor from overheating and damage during long-term operation. In addition, the output power of the abrasive belt wheel hub motor of the electric flexible shaft machine 34 is large, and the efficiency of grinding the slip ring 100 is high.

[0054] In some embodiments, the grinding wheel 32 includes a wheel shaft, a flexible hub, and an abrasive belt. The wheel shaft is rotatably arranged on the grinding base 31 detachably, and the axial direction of the wheel shaft is perpendicular to the radial direction of the slip ring 100. The flexible hub is sleeved on the wheel shaft, and a plurality of hollow grooves are arranged along the circumferential direction of the wheel shaft on the flexible hub. The abrasive belt is sleeved on the flexible hub and is used to abut against the slip ring 100.

[0055] It can be understood that for the grinding wheel 32 driven by a driving mechanism, the flexible buffer structure of the grinding wheel 32 can be realized by utilizing the flexible characteristics of the flexible hub and the plurality of hollow grooves arranged along the circumferential direction of the wheel shaft on the flexible hub. Thus, when the grinding wheel 32 abuts against the slip ring 100, the slip ring 100 can be prevented from being damaged by mechanical stress.

[0056] It should be noted that the wheel shaft is used for the rotation of the grinding wheel 32, and the specific type of the wheel shaft can be set according to actual needs, and no limitation is imposed thereon.

[0057] The flexible hub is used for the flexible buffer of the grinding wheel 32, and the specific type of the flexible hub can be set according to actual needs, and no limitation is imposed thereon. For example, the flexible hub can be made of rubber material, and the hollow groove is a structure close to a sector.

[0058] The abrasive belt is used for grinding the slip ring 100, and the specific type of the abrasive belt can be set according to actual needs, and no limitation is imposed thereon.

[0059] As Figure 4 shown, in some embodiments, the grinding device 3 further includes a buffer seat 35 and a spring 36. The buffer seat 35 is rotatably arranged on the grinding base 31, and the buffer seat 35 is arranged to move radially along the slip ring 100. The grinding wheel 32 is rotatably arranged on the buffer seat 35 detachably, and the spring 36 is arranged between the buffer seat 35 and the grinding base 31.

[0060] It can be understood that when the grinding wheel 32 is not powered, the grinding wheel 32 uses the rotation of the slip ring 100 to grind the slip ring 100. At the same time, the flexible buffer structure of the grinding wheel 32 is realized by the cooperation of the buffer seat 35 and the spring 36. Thus, when the grinding wheel 32 abuts against the slip ring 100, the slip ring 100 can be prevented from being damaged by mechanical stress.

[0061] It should be noted that the buffer seat 35 is used for the movable arrangement of the grinding wheel 32 on the grinding seat 31. The specific type of the buffer seat 35 can be set according to actual needs, and no limitation is imposed thereon. Among them, the axial direction of the buffer seat 35 is located in the radial direction of the slip ring 100.

[0062] The spring 36 is used for buffering the grinding wheel 32. The specific type of the spring 36 can be set according to actual needs, and no limitation is imposed thereon.

[0063] In some embodiments, the first motion mechanism 1 includes: a first pedestal, a second pedestal, a first lead screw, and a first driving member. The second pedestal is slidably arranged on the first pedestal along the radial direction of the slip ring 100, and the second motion mechanism 2 is arranged on the second pedestal. The first lead screw is rotatably arranged on the first pedestal, and the first lead screw is in threaded transmission connection with the second pedestal. The first driving member is arranged on the first pedestal, and the power output end of the first driving member is in transmission connection with the power input end of the first lead screw. Among them, the signal output end of the control module is connected to the signal input end of the first driving member, and the control module is used to control the first driving member to drive the first lead screw to rotate so that the second pedestal moves along the radial direction of the slip ring 100.

[0064] It can be understood that since the second pedestal is slidably arranged on the first pedestal along the radial direction of the slip ring 100, the first lead screw is in threaded transmission connection with the second pedestal, and the power output end of the first driving member is in transmission connection with the power input end of the first lead screw, the first driving member can drive the first lead screw to rotate, thereby driving the second pedestal to move along the radial direction of the slip ring 100. And since the second motion mechanism 2 is arranged on the second pedestal, when the second pedestal moves, it can drive the grinding end of the grinding device 3 to move synchronously. Thus, under the control of the control module, the grinding end of the grinding device 3 can be made to abut and grind on the slip ring 100.

[0065] It should be noted that the first pedestal is used to carry the second pedestal, the first lead screw, and the first driving member. The specific type of the first pedestal can be set according to actual needs, and no limitation is imposed thereon. By way of example, the first pedestal is a seat body structure arranged along the radial direction of the slip ring 100.

[0066] The second pedestal is used to carry the second motion mechanism 2. The specific type of the second pedestal can be set according to actual needs, and no limitation is imposed thereon. By way of example, the second pedestal is a seat body structure arranged along the radial direction of the slip ring 100, and the second pedestal has a rail groove arranged along the radial direction of the slip ring 100, and the first pedestal has a guide rail arranged along the radial direction of the slip ring 100. The rail groove and the guide rail cooperate to realize the sliding arrangement of the second pedestal on the first pedestal.

[0067] The first lead screw is used to convert rotational motion into linear motion to drive the second pedestal to move radially along the slip ring 100. The specific type of the first lead screw can be set according to actual needs, and there is no limitation in this regard.

[0068] The first driving member is used to drive the first lead screw to rotate. The specific type of the first driving member can be set according to actual needs, and there is no limitation in this regard. By way of example, the first driving member can be a motor. In addition, in addition to the automatic control mode of the control module, the first driving member can also be a handwheel for manual driving.

[0069] In some embodiments, the second motion mechanism 2 includes: a third pedestal, a fourth pedestal, a second lead screw, and a second driving member. The third pedestal is disposed on the first motion mechanism 1. The fourth pedestal is slidably disposed on the third pedestal along the axial direction of the slip ring 100, and the grinding end of the grinding device 3 is disposed on the fourth pedestal. The second lead screw is rotatably disposed on the third pedestal, and the second lead screw is in threaded transmission connection with the fourth pedestal. The second driving member is disposed on the third pedestal, and the power output end of the second driving member is in transmission connection with the power input end of the second lead screw. Among them, the signal output end of the control module is connected to the signal input end of the second driving member, and the control module is used to control the second driving member to drive the second lead screw to rotate so that the fourth pedestal moves along the axial direction of the slip ring 100.

[0070] It can be understood that since the fourth pedestal is slidably disposed on the third pedestal along the axial direction of the slip ring 100, the second lead screw is in threaded transmission connection with the fourth pedestal, and the power output end of the second driving member is in transmission connection with the power input end of the second lead screw, the second driving member can drive the second lead screw to rotate, thereby driving the fourth pedestal to move along the axial direction of the slip ring 100. Moreover, since the grinding end of the grinding device 3 is disposed on the fourth pedestal, the grinding end of the grinding device 3 can be driven to move synchronously while the fourth pedestal moves. Thus, under the control of the control module, reciprocating grinding of the grinding end of the grinding device 3 on the slip ring 100 can be realized.

[0071] It should be noted that the third pedestal is used to carry the fourth pedestal, the second lead screw, and the second driving member. The specific type of the third pedestal can be set according to actual needs, and there is no limitation in this regard. By way of example, the third pedestal is a pedestal structure arranged along the axial direction of the slip ring 100, and it is disposed on the second pedestal.

[0072] The fourth pedestal is used to carry the grinding end of the grinding device 3. The specific type of the fourth pedestal can be set according to actual needs, and there is no limitation in this regard. By way of example, the fourth pedestal is a pedestal structure arranged along the axial direction of the slip ring 100, and the fourth pedestal has a rail groove arranged along the axial direction of the slip ring 100, and the third pedestal has a guide rail arranged along the axial direction of the slip ring 100. The rail groove and the guide rail cooperate to realize the sliding arrangement of the fourth pedestal on the third pedestal.

[0073] The second lead screw is used to convert rotational motion into linear motion to drive the fourth pedestal to move radially along the slip ring 100. The specific type of the second lead screw can be set according to actual needs, and there is no limitation thereto.

[0074] The second driving member is used to drive the second lead screw to rotate. The specific type of the second driving member can be set according to actual needs, and there is no limitation thereto. By way of example, the second driving member can be a motor.

[0075] As Figure 1 、 Figure 2 and Figure 3 shown, in some embodiments, the moving platform further includes: a base 4, the base 4 is detachably and fixedly arranged relative to the hydrogenerator, and the bearing surface of the base 4 is perpendicular to the axial direction of the slip ring 100, and the first motion mechanism 1 is arranged on the bearing surface of the base 4.

[0076] It can be understood that, since the base 4 is detachably and fixedly arranged relative to the hydrogenerator, and the first motion mechanism 1 is arranged on the bearing surface of the base 4, the first motion mechanism 1, the second motion mechanism 2 and the grinding end of the grinding device 3 can be stably arranged relative to the hydrogenerator by using the base 4, thereby ensuring high-efficiency and high-quality grinding of the slip ring 100 by the system.

[0077] It should be noted that the base 4 is used to carry the first motion mechanism 1, the second motion mechanism 2, etc. The specific type of the base 4 can be set according to actual needs, and there is no limitation thereto. By way of example, the base 4 is a seat body structure and is fixed on the oil tank cover plate of the hydrogenerator by a plurality of bolts.

[0078] In the description of the present disclosure, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more.

[0079] Any process or method description in the flowchart or described in other ways herein can be understood as representing a module, segment or part of executable instructions including one or more steps for implementing a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in a reverse order according to the involved functions, rather than in the order shown or discussed, which should be understood by those skilled in the technical field to which the embodiments of the present disclosure belong.

[0080] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A dynamic grinding system for the collector ring of a hydro-generator, characterized in that, Comprising: A motion platform, the motion platform comprising: a first motion mechanism moving radially along the slip ring and a second motion mechanism moving axially along the slip ring, the second motion mechanism being disposed on the first motion mechanism; A grinding device, the grinding end of the grinding device being disposed on the second motion mechanism; A control module, the control module being configured to, when the slip ring rotates, control the first motion mechanism to drive the grinding end of the grinding device to move radially along the slip ring so that the grinding end of the grinding device abuts against the slip ring with a preset pressure, and control the second motion mechanism to drive the grinding end of the grinding device to reciprocate axially along the slip ring at a preset speed so that the grinding end of the grinding device dynamically grinds the slip ring.

2. The collector ring dynamic grinding system for a hydrogenerator according to claim 1, characterized in that The grinding device comprises: A grinding seat, the grinding seat being disposed on the second motion mechanism; A grinding wheel, the grinding wheel being rotatably disposed on the grinding seat detachably, and the axis of the grinding wheel being perpendicular to the radial direction of the slip ring, the grinding wheel being configured to abut against the slip ring with the preset pressure; Wherein, the grinding device is configured to grind the slip ring with the grinding wheel of a first mesh number for a first time, then grind the slip ring with the grinding wheel of a second mesh number for a second time, and finally grind the slip ring with the grinding wheel of a third mesh number for a third time; The first mesh number is less than the second mesh number, and the second mesh number is less than the third mesh number.

3. The collector ring dynamic grinding system for a hydrogenerator according to claim 2, characterized in that The grinding device further comprises: A driving mechanism, the power output end of the driving mechanism being connected to the power input end of the grinding wheel; Wherein, the signal output end of the control module is connected to the signal input end of the driving mechanism, and the control module is configured to control the driving mechanism to drive the grinding wheel to rotate at a corresponding speed according to the rotation speed of the slip ring.

4. The collector ring dynamic grinding system for a hydrogenerator according to claim 3, wherein, The driving mechanism comprises: A driving motor, the driving motor being disposed on the grinding seat, and the power output end of the driving motor being connected to the power input end of the grinding wheel, the signal input end of the driving motor being connected to the signal output end of the control module.

5. The collector ring dynamic grinding system of the hydrogenerator according to claim 3, characterized in that, The driving mechanism comprises: A flexible shaft machine, the power output end of the flexible shaft machine being connected to the power input end of the grinding wheel, and the signal input end of the flexible shaft machine being connected to the signal output end of the control module.

6. The collector ring dynamic grinding system of the hydrogenerator according to claim 3, characterized in that, The grinding wheel comprises: A wheel shaft, the wheel shaft being rotatably disposed on the grinding seat detachably, and the axis of the wheel shaft being perpendicular to the radial direction of the slip ring; A flexible hub, the flexible hub being sleeved on the wheel shaft, and a plurality of hollow slots being disposed on the flexible hub along the circumferential direction of the wheel shaft; A grinding belt, the grinding belt being sleeved on the flexible hub, and the grinding belt being configured to abut against the slip ring.

7. The collector ring dynamic grinding system of the hydrogenerator according to claim 2, characterized in that, The grinding device further comprises: A buffer seat, the buffer seat being rotatably disposed on the grinding seat, and the buffer seat being movably arranged radially along the slip ring, the grinding wheel being rotatably disposed on the buffer seat detachably; A spring, the spring being disposed between the buffer seat and the grinding seat.

8. The collector ring dynamic grinding system of the hydrogenerator according to claim 1, characterized in that, The first motion mechanism comprises: A first pedestal; A second pedestal, which is slidably arranged on the first pedestal along the radial direction of the slip ring, and the second motion mechanism is arranged on the second pedestal; A first lead screw, which is rotatably arranged on the first pedestal, and the first lead screw is in threaded transmission connection with the second pedestal; A first driving member, which is arranged on the first pedestal, and the power output end of the first driving member is in transmission connection with the power input end of the first lead screw; Wherein, the signal output end of the control module is connected to the signal input end of the first driving member, and the control module is used to control the first driving member to drive the first lead screw to rotate, so that the second pedestal moves along the radial direction of the slip ring.

9. The dynamic grinding system for the collector ring of a hydrogenerator according to claim 1, wherein, The second motion mechanism includes: A third pedestal, which is arranged on the first motion mechanism; A fourth pedestal, which is slidably arranged on the third pedestal along the axial direction of the slip ring, and the grinding end of the grinding device is arranged on the fourth pedestal; A second lead screw, which is rotatably arranged on the third pedestal, and the second lead screw is in threaded transmission connection with the fourth pedestal; A second driving member, which is arranged on the third pedestal, and the power output end of the second driving member is in transmission connection with the power input end of the second lead screw; Wherein, the signal output end of the control module is connected to the signal input end of the second driving member, and the control module is used to control the second driving member to drive the second lead screw to rotate, so that the fourth pedestal moves along the axial direction of the slip ring.

10. The collector ring dynamic grinding system of the hydro-generator according to claim 1, characterized in that The motion platform further includes: A base, which is fixedly arranged detachably relative to the water turbine generator, and the bearing surface of the base is perpendicular to the axial direction of the slip ring, and the first motion mechanism is arranged on the bearing surface of the base.

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