Coupling maintenance production line and maintenance method thereof

Abstract

The invention discloses a coupling overhaul production line and an overhaul method thereof, and belongs to the technical field of coupling overhaul. The problem of how to improve the overhaul efficiency of the coupling is solved. The production line comprises a disassembling section, a cleaning section and an assembling section, the disassembling section comprises a rough cleaning machine, the rough cleaning machine comprises a soaking pool, and grease cleaning liquid is arranged in the soaking pool; the coupling bearing mechanism is movably arranged in the soaking pool, and a first liquid passing hole is formed in the coupling bearing mechanism; the scrubbing mechanism comprises a scrubbing part, and the scrubbing part is arranged over the coupling bearing mechanism and used for scrubbing the coupling located on the coupling bearing mechanism. Disassembling, cleaning and assembling of the couplings are centralized, the overhauling efficiency is greatly improved, the automatic cleaning device is used for replacing the rough cleaning procedure which is large in operation difficulty and time-consuming, automation of the cleaning process is achieved, and the cleaning efficiency is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of maintenance equipment, and particularly relates to a coupling maintenance production line and a maintenance method thereof. Background Art

[0002] A coupling (also known as a coupling shaft) is a key mechanical component that connects the traction motor and the gearbox (or other transmission shafts) in a rail vehicle, and is used to transmit torque and compensate for the relative displacement between the two shafts (such as axial, radial, and angular deviations). At the same time, it has the functions of buffering, vibration reduction, and interference isolation.

[0003] In order to ensure the normal use of the coupling, it needs to be regularly inspected and maintained. The basic process of inspection and maintenance is: visual inspection - disassembly - cleaning - inspection - pre-assembly - greasing - assembly; in the cleaning step, after the coupling is disassembled, the internal structures such as the gear meshing surface and the bearing raceway need to be thoroughly cleaned, and hardened grease and metal particles need to be removed. Since the gear meshing surface is not easy to clean, in the prior art, in order to ensure the cleaning effect of the coupling, this step is basically completed manually, resulting in time-consuming and laborious maintenance of the coupling. And currently, the maintenance operation sites of the coupling are relatively scattered, and long-distance transportation and other operations need to be carried out during the operation, resulting in low maintenance efficiency of the coupling. Summary of the Invention

[0004] Aiming at the problem of how to improve the maintenance efficiency of the coupling in the prior art, the present invention provides a coupling maintenance production line and a maintenance method thereof.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A coupling maintenance production line includes:

[0007] A disassembly section for disassembling the coupling to be maintained;

[0008] A cleaning section for cleaning the disassembled coupling, including a rough cleaning section and a fine cleaning section;

[0009] The rough cleaning section includes a rough cleaning machine, and the rough cleaning machine includes:

[0010] An immersion tank, in which a grease cleaning liquid is provided;

[0011] A coupling support mechanism, which is movably arranged in the immersion tank, and a first liquid passing hole is provided on the coupling support mechanism;

[0012] A brushing mechanism, which includes a brushing member, and the brushing member is arranged directly above the coupling support mechanism for brushing the coupling located on the coupling support mechanism;

[0013] The fine cleaning section includes a cleaning machine, and the cleaning machine includes: a vacuum cleaning mechanism for re-cleaning the coupling using ultrasonic waves and a grease cleaning liquid; a rinsing and draining mechanism for rinsing and draining the coupling that has passed through the vacuum cleaning mechanism; a transfer mechanism for transferring the coupling between the vacuum cleaning mechanism and the rinsing mechanism;

[0014] An assembly section for assembling the cleaned coupling.

[0015] After adopting this technical solution, the present invention centralizes the disassembly, cleaning section, and assembly section in the overhaul process of the coupling, eliminating the need for long-distance transfer, effectively saving operation time; and the cleaning section includes a rough cleaning section and a fine cleaning section. The rough cleaning section can automatically soak and brush the coupling. The grease cleaning liquid in the soaking pool can soak the coupling in it, softening and dissolving most of the grease. After the soaking is completed, the brushing mechanism is started to remove the remaining grease on the coupling, thereby realizing the automatic rough cleaning of the grease on the surface of the coupling. The automatic cleaning device replaces the rough cleaning process with high operation difficulty and time consumption, greatly saving manpower and effectively improving the cleaning efficiency of the coupling. The coupling after rough cleaning is transported to the fine cleaning section for final cleaning, thereby realizing the automation of the entire cleaning process and maximizing the cleaning efficiency.

[0016] Preferably, the rough cleaning machine includes a temporary storage mechanism arranged around the soaking pool. The temporary storage mechanism includes an inclined placement plate, and the lower end of the placement plate with a lower position is arranged above the soaking pool.

[0017] After adopting this technical solution, the coupling after cleaning can be placed on the placement plate, and the remaining grease cleaning liquid on the coupling can flow back into the soaking pool along the placement plate, thereby avoiding the remaining grease on the coupling falling to the ground during the subsequent transfer of the coupling, causing the ground to be slippery and posing a safety hazard, and at the same time reducing the loss of the grease cleaning liquid.

[0018] Preferably, the placement plate includes an upper plate and a lower plate. A receiving groove is arranged on the lower plate. One end of the receiving groove is located directly above the soaking pool and communicates with the outside. The upper plate is arranged in the receiving groove, and there is a gap between the upper plate and the bottom of the receiving groove. Second liquid passing holes communicating with the receiving groove are arranged on the upper plate.

[0019] After adopting this technical solution, since the upper and lower end faces of the coupling are relatively flat and the middle part is hollow, if the upper plate is solid, the grease cleaning liquid flowing down from the hollow part in the middle of the coupling cannot be discharged. Therefore, after the second liquid passing holes are opened on the upper plate, the grease cleaning liquid in the middle of the coupling can also quickly separate from the coupling, and at the same time, it accelerates the separation of the grease cleaning liquid from the coupling.

[0020] Preferably, the rough washer includes a base, the soaking tank is arranged on the base, one end of the placing plate is rotatably connected to the inner wall of the soaking tank through a rotating connecting piece, a supporting mechanism for supporting the placing plate and making the placing plate inclined is arranged on the base, the brushing mechanism further includes a first moving assembly capable of driving the brushing piece to move up and down, and when the brushing piece moves downward into the soaking tank, it drives the placing plate to rotate to cover the soaking tank, and when the brushing piece moves upward out of the soaking tank, it drives the placing plate to rotate to contact the supporting mechanism.

[0021] After adopting this technical solution, grease cleaning liquid may splash during the brushing process. Therefore, in order to avoid its splashing, the present invention sets the placing plate as a rotatable structure, and drives the placing plate to automatically close or open through the up and down movement of the brushing piece, saving the operation process, and being simple and convenient to use.

[0022] Preferably, the rotating connecting piece includes at least two bearings arranged on the inner wall of the soaking tank, the bearing seat of each bearing is fixedly connected to the soaking tank, a rotating shaft is rotatably connected to the bearing, the rotating shaft is connected to the placing plate through a connecting column, and a first clamping plate is arranged on the rotating shaft;

[0023] The sliding part of the first moving assembly is connected to the brushing part, and a second clamping plate is arranged on one side of the sliding part of the first moving assembly close to the first clamping plate, and the placing plate is driven to rotate by the contact between the first clamping plate and the second clamping plate.

[0024] After adopting this technical solution, the cooperation between the first clamping plate and the second clamping plate realizes the purpose of driving the placing plate to rotate through the movement of the sliding part.

[0025] Preferably, a convex block cooperating with the placing plate is arranged on the top surface of the sliding part of the first moving assembly away from the placing plate.

[0026] After adopting this technical solution, the rotation of the placing plate is assisted better by the abutment of the convex block against the placing plate.

[0027] Preferably, the disassembly section includes a disassembly operation table, a disassembly auxiliary tooling is arranged on the disassembly operation table, the disassembly auxiliary work includes a rotating platform for placing a coupling, a first telescopic mechanism cooperating with the rotating platform is arranged on the disassembly operation table, a mechanical gripper is connected to the first telescopic mechanism, the disassembly auxiliary tooling further includes a disassembly mechanism, the disassembly mechanism includes a fixed frame, a rotating mechanism is arranged on the fixed frame, a second telescopic mechanism is connected to the rotating mechanism, and a straight bolt wrench is connected to the second telescopic mechanism.

[0028] With this technical solution, the present invention also provides a disassembly assistance tooling, which can help remove the bolts of the coupling, greatly improving the disassembly efficiency.

[0029] Preferably, there are two disassembly mechanisms, and the positions of the two disassembly mechanisms correspond to the positions of two adjacent flange holes on the large flange of the coupling respectively.

[0030] After adopting this technical solution, since it is necessary to insert a bolt wrench deeply from the large flange hole on one side of the large flange when disassembling the bolt in the prior art, and in the present invention, since a mechanical gripper is provided to fix the coupling, the part grasped by the mechanical gripper cannot be inserted into the bolt wrench. Therefore, two disassembly mechanisms are provided to disassemble two bolts simultaneously. After each disassembly, the coupling is rotated by the rotating platform so that the next position reaches the two disassembly mechanisms to automatically disassemble the next two bolts. Therefore, the disassembly of the bolts can be realized without manual assistance, further improving the disassembly efficiency.

[0031] Preferably, the cleaning part includes a support cylinder, and a first brush layer is arranged outside the support cylinder, and the first brush layer is matched with the meshing surface of the internal gear on the coupling sleeve;

[0032] A groove extending upward is arranged at the bottom of the support cylinder, and a second brush layer is arranged on the inner wall of the groove, and the second brush layer is matched with the meshing surface of the external gear on the coupling shaft sleeve.

[0033] After adopting this technical solution, the meshing surface of the internal gear on the coupling sleeve can be brushed by the first brush layer to improve the cleaning efficiency. By providing a second brush on the support cylinder that is matched with the meshing surface of the external gear on the coupling shaft sleeve, the cleaning of different components of the coupling is realized by the same device, improving the practicability of the device.

[0034] A coupling maintenance method includes the following steps:

[0035] S1: Check and photograph the coupling serial number and taper hole, judge whether there are bumps, scratches and corrosion, eliminate those that do not meet the requirements, and proceed to the next process for those that meet the requirements;

[0036] S2: Disassemble the shaft connection in the disassembly section;

[0037] S3: Send the disassembled coupling sleeve and shaft sleeve to the cleaning section for cleaning, and replace or manually clean the remaining components;

[0038] S4: Re-check each component after cleaning after completion of cleaning;

[0039] S5: Pre-assemble the components that meet the requirements after inspection in the assembly section;

[0040] S6: Grease the pre-installed coupling components;

[0041] S7: Assemble the greased coupling components into a complete coupling.

[0042] Preferably, S3 includes the following steps:

[0043] S301: Place the coupling on the coupling support mechanism, and drive the coupling into the soaking pool through the coupling support mechanism for soaking;

[0044] S302: After the soaking is completed, start the brushing mechanism to brush the coupling;

[0045] S303: Transfer the brushed coupling to the vacuum cleaning mechanism for vacuum cleaning;

[0046] S304: Transport the coupling after vacuum cleaning to the rinsing and draining mechanism through the transfer mechanism, rinse and drain it to obtain the cleaned coupling.

[0047] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0048] The present invention centralizes the disassembly, cleaning section, and assembly section in the overhaul process of the coupling, eliminating the need for long-distance transfer, effectively saving operation time; and the cleaning section includes a rough cleaning section and a fine cleaning section. In the rough cleaning section, the coupling can be automatically soaked and brushed. The grease cleaning solution in the soaking pool can soak the coupling in the grease cleaning solution to soften and dissolve most of the grease. After the soaking is completed, start the brushing mechanism to remove the remaining grease on the coupling, thereby realizing the automatic rough cleaning of the grease on the surface of the coupling. The automatic cleaning device replaces the rough cleaning process with high operation difficulty and time consumption, greatly saving manpower and effectively improving the cleaning efficiency of the coupling. The coupling after rough cleaning is transported to the fine cleaning section for final cleaning, thereby realizing the automation of the entire cleaning process and maximizing the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a schematic structural diagram of the present invention;

[0050] Figure 2 is Figure 1 a partial enlarged view of part A in

[0051] Figure 3 is a schematic structural diagram of the rough washing machine in one of the implementation states of the present invention;

[0052] Figure 4 is a schematic structural diagram of the scrubbing part of the present invention;

[0053] Figure 5 It is a schematic structural diagram of the placement board in the present invention;

[0054] Figure 6 It is a schematic structural diagram of the first state of the rough washer in another implementation state of the present invention;

[0055] Figure 7 It is a schematic structural diagram of the second state of the rough washer in another implementation state of the present invention;

[0056] Among them, 1 - feeding frame, 2 - disassembly operation table, 3 - third telescopic mechanism, 4 - sliding mechanism, 5 - first telescopic mechanism, 6 - second telescopic mechanism, 7 - bolt wrench, 8 - rotating platform, 9 - rough washer, 901 - first moving component, 902 - connecting plate, 903 - support cylinder, 904 - second moving component, 905 - first brush layer, 906 - supporting plate, 907 - first liquid passing hole, 908 - upper plate, 909 - second liquid passing hole, 910 - second brush layer, 911 - groove, 912 - receiving groove, 913 - lower plate, 914 - support mechanism, 915 - convex block, 916 - rotating shaft, 917 - rotating groove, 918 - first clamping plate, 919 - second clamping plate, 10 - transfer mechanism, 11 - fine washing section, 12 - assembly section, 13 - discharging frame. Detailed implementation manners

[0057] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0058] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0059] As shown Figure 1-7 in the figure, a coupling overhaul production line includes:

[0060] A disassembly section for disassembling the coupling to be overhauled. In this embodiment, as shown Figure 1 in the figure, the disassembly section includes a disassembly operation table 2 for coupling disassembly operations. The disassembly operation table 2 has hanging plate hooks, and there are edges around the disassembly operation table 2 with a height not greater than 10 mm. The reference external dimensions are 1500*900*850 mm. The panel of the disassembly operation table 2 uses wear-resistant and anti-collision materials, and the tabletop can be installed with a coupling disassembly and fixing tooling according to needs.

[0061] A cleaning section, including a rough cleaning section and a fine cleaning section 11. The rough cleaning section includes a rough cleaning machine 9, and the rough cleaning machine includes:

[0062] An immersion tank with a grease cleaning liquid provided therein. It should be noted that the size of the immersion tank should be larger than the size of the coupling to facilitate the up and down movement of the coupling (it should be noted that the coupling to be cleaned in the cleaning section is a coupling component, specifically a coupling sleeve and a coupling bushing) placed on the coupling support mechanism in the immersion tank. In this embodiment, the high-quality cleaning liquid is kerosene, and the grease on the coupling is softened and dissolved by kerosene.

[0063] A coupling support mechanism movably arranged in the immersion tank, and the coupling support mechanism is provided with a first liquid passing hole 907. It should be noted that only the part of the coupling support mechanism for supporting the coupling is located in the immersion tank, and the rest is connected to the base. To improve the service life of the device, the part located in the immersion tank can be made of stainless steel. Several first liquid passing holes 907 are also provided, and the several first liquid passing holes 907 are evenly arranged on the part of the coupling support mechanism located in the immersion tank. By setting the first liquid passing hole 907, the resistance of the coupling entering and leaving the grease cleaning liquid can be reduced, and at the same time, the grease cleaning liquid can fully contact the inner hole of the coupling.

[0064] A brushing mechanism, which includes a brushing member arranged directly above the coupling support mechanism for brushing the coupling located on the coupling support mechanism. Specifically, the brushing member and the coupling placed on the coupling support mechanism can be relatively arranged to brush the coupling located on the coupling support mechanism through the brushing member.

[0065] The fine cleaning section 11 includes a cleaning machine, and the cleaning machine includes:

[0066] A vacuum cleaning mechanism for using ultrasonic waves and a grease cleaning liquid to clean the coupling again;

[0067] In this embodiment, the vacuum cleaning mechanism uses an ultrasonic vacuum cleaning machine, which is an efficient cleaning device. Its principle and advantages are as follows: Principle: During cleaning, the object to be cleaned is first put into the cleaning liquid under normal pressure, allowing the cleaning liquid to penetrate into the fine holes or deep holes of the workpiece, and then vacuum degassing treatment is carried out. When reducing pressure and pumping vacuum, the tiny bubbles dissolved in the cleaning liquid expand in the fine holes as the air pressure decreases, carrying out dirt. Then, the ultrasonic generating device is started under vacuum conditions, and the dirt is removed by utilizing the good cleaning ability of ultrasonic waves in the degassed cleaning liquid. The circulating pump can also be started to make the cleaning liquid circulate under vacuum, and the dirt is adsorbed and removed through the filter. Advantages: Gas in the cleaning liquid can be removed through vacuum degassing, which is beneficial to generating true cavities. The shock wave generated when they rupture is stronger, capable of crushing and peeling stubborn dirt; the propagation attenuation of ultrasonic waves in the cleaning liquid can be reduced, better exerting its vibration acceleration effect, and it is suitable for cleaning ultra-precision workpieces. Its cleaning medium: kerosene; material: 304 stainless steel - 2.5mm, equipment size: 3500mm * 1400mm * 1600mm; basket size: 650mm × 650mm; ultrasonic power: 6KW; ultrasonic frequency: 28000HZ, filtration accuracy 1 - 10 microns;

[0068] The rinsing and draining mechanism is used to rinse and drain the coupling that has passed through the vacuum cleaning mechanism; specifically, multiple rinsing pools can be set up in sequence. The coupling is grabbed by an electric mechanical gripper and rinsed in each rinsing pool in turn, and then placed on the draining plate arranged on the rinsing pool for draining. The liquid on the coupling drops into the rinsing pool along the draining holes; in other embodiments, in order to accelerate the drying of the coupling, a dryer can also be set up to quickly dry the coupling through the dryer. The transfer mechanism 10 is used to transfer the coupling between the vacuum cleaning mechanism and the rinsing mechanism, from Figure 1 It can be seen that the transfer mechanism 10 can include a conveyor belt. The coupling cleaned in the rough washing section is transported to the vacuum cleaning mechanism through the conveyor belt, and then after being cleaned in the vacuum cleaning mechanism, it is transported to the rinsing and draining mechanism for rinsing and draining, and then discharged through the conveyor belt; secondly, the transfer mechanism 10 also includes at least one electric mechanical gripper to realize placing the coupling from the conveyor belt into the vacuum cleaning mechanism or the rinsing and draining mechanism, or taking out the coupling from the vacuum cleaning mechanism or the rinsing and draining mechanism and placing it on the conveyor belt for transportation. When there is an electric mechanical gripper, a corresponding moving mechanism needs to be set up to enable it to operate coordinately between various mechanisms; when there are multiple ones, the electric mechanical gripper can be fixed to a specific position;

[0069] The assembly section 12, such as Figure 1As shown in the figure, an assembly workbench is also provided in the assembly section 12. The assembly workbench is used for the coupling assembly operation. The assembly workbench is equipped with hanging plate hooks, and there are edges around the assembly workbench. The height of the edge is not more than 10 mm, and the reference external dimensions are 1500*900*850 mm. The panel of the assembly workbench uses wear-resistant and anti-collision materials, and a coupling assembly fixing tooling needs to be installed on the tabletop. Workers can conduct inspections and assemblies of couplings in the assembly section 12.

[0070] In one embodiment, the rough washer includes a temporary storage mechanism disposed around the soaking tank. The temporary storage mechanism includes an inclined placement plate, and the lower end of the placement plate with a lower position is disposed above the soaking tank. The inclination angle of the placement plate is about 5 - 30 degrees, preferably 10 degrees. This is because if the inclination angle is too large, the coupling may move along the inclined plane into the soaking tank under its own gravity, affecting the subsequent cleaning of the coupling. If the inclination angle is too small, the reflux speed of the grease cleaning liquid may be slow. Therefore, an inclination angle of 5 - 30 degrees is more suitable. By setting the placement plate, the couplings after cleaning can be placed, and the residual grease cleaning liquid on the couplings can flow back into the soaking tank along the placement plate, thereby avoiding the residual grease on the couplings falling to the ground during the subsequent transfer of the couplings, resulting in a slippery ground and causing potential safety hazards. At the same time, it also reduces the loss of the grease cleaning liquid.

[0071] In one embodiment, as Figure 1 shown, it further includes a loading frame 1 and an unloading frame 13. The loading frame 1 and the unloading frame 13 are respectively used for storing the couplings to be overhauled and the overhauled couplings.

[0072] In one embodiment, the placement plate includes an upper plate 908 and a lower plate 913. A receiving groove 912 is provided on the lower plate 913. One end of the receiving groove 912 is located directly above the soaking tank and is communicated with the outside. The upper plate 908 is disposed in the receiving groove 912, and there is a gap between the upper plate 908 and the bottom of the receiving groove 912. A second liquid passing hole 909 communicating with the receiving groove 912 is provided on the upper plate 908. The height of the gap is about 0.5 - 2 cm, and it is set to 1 cm in this embodiment. The setting of the gap can also improve the permeability of the placement plate, facilitating the rapid separation of the grease cleaning liquid. A second liquid passing hole 909 communicating with the receiving groove 912 is provided on the upper plate 908. As Figure 1-2 shown, several second liquid passing holes 909 are also provided. The several second liquid passing holes 909 are evenly arranged on the upper plate 908. There is a gap between the upper plate 908 and the bottom of the receiving groove 912. When the coupling is placed on the upper plate 908 to drain, the liquid can flow into the soaking tank along the gap.

[0073] In one embodiment, the brushing mechanism further includes a first moving component 901 that can drive the brushing member to move up and down. During the process of the brushing member moving downward into the soaking pool, the placing plate is driven to rotate to cover the soaking pool. During the process of the brushing member moving upward out of the soaking pool, the placing plate is driven to rotate to contact the support mechanism 914. In this embodiment, the first moving component 901 can be a linear module. The brushing member is connected to the sliding member of the linear module to drive the brushing member to move up and down, which can not only achieve the contact and separation between the brushing member and the coupling, but also achieve the up and down brushing of the coupling by the brushing member. In order to realize the rotation of the brushing member, a rotating motor can be arranged between the brushing member and the sliding member of the linear module (specifically as shown in Figure 1 . The brushing member and the sliding member can be connected through a connecting plate 902, and a rotating motor for driving the brushing member to rotate can be arranged between the brushing member and the connecting plate 902). The rotating motor drives the brushing member to rotate, so as to realize the rotating brushing of the coupling by the brushing member. During the brushing process, the oil cleaning liquid may splash. Therefore, in order to avoid its splashing, the present invention sets the placing plate as a rotatable structure, and drives the placing plate to automatically close or open through the up and down movement of the brushing member, saving the operation process and being simple and convenient to use.

[0074] In one embodiment, the coupling supporting mechanism includes a second moving component 904 and a supporting plate 2. The first liquid passing hole 907 is arranged on the supporting plate 906. The supporting plate 906 is arranged in the soaking pool through the second moving component 4 and can move up and down. Specifically, the second moving component 4 is also a linear module, and the supporting plate 906 is connected to the sliding member of the linear module. The linear module drives the supporting plate 906 to move up and down, so that the coupling placed on the supporting plate 906 can enter and exit the soaking pool.

[0075] In one embodiment, the brushing member includes a support cylinder 3. A second brush layer 905 is arranged outside the support cylinder 3. The second brush layer 905 is matched with the meshing surface of the internal gear on the coupling sleeve. Specifically, the second brush layer 905 is arranged in a uniform circumferential arrangement in columns on the side surface of the support cylinder 3, and the distance between columns matches the distance between adjacent two tooth grooves on the meshing surface of the internal gear on the coupling sleeve, so that each column of bristles can just face a tooth groove, thereby the grease in each tooth groove can be brushed, improving the cleaning effect. The brushing member can rotate and move up and down to brush the tooth grooves.

[0076] A groove 13 extending upward is provided at the bottom of the support cylinder 3, and a second brush layer 910 is provided on the inner wall of the groove 13. The second brush layer 910 is engaged with the meshing surface of the external gear on the coupling bushing. Specifically, the second brush layer 910 is also arranged in rows like the second brush layer 905, and the spacing between rows matches the spacing between adjacent two tooth grooves on the meshing surface of the external gear on the coupling bushing, so that each row of bristles can exactly face a tooth groove, thereby brushing the grease in each tooth groove. By providing the second brush engaged with the meshing surface of the external gear on the coupling bushing on the support cylinder 3, the cleaning of different components of the coupling is realized by the same device, improving the practicability of the device.

[0077] In one embodiment, a coupling sleeve placement area identification structure and a coupling bushing placement area identification structure are provided on the coupling support mechanism. Not shown in the figure, through the coupling sleeve placement area identification structure and the coupling bushing placement area identification structure, the operator can clearly know the placement positions of the coupling bushing and the coupling sleeve, so that after the coupling bushing and the coupling sleeve are placed, they can exactly face the washing part, and there is no need to repeatedly adjust the placement positions of the coupling bushing and the coupling sleeve, improving the cleaning efficiency.

[0078] In one embodiment, specifically, the rough washer includes a base, the soaking tank is arranged on the base, one end of the placement plate is rotatably connected to the inner wall of the soaking tank (near the top opening) through a rotating connector, and a support mechanism 914 for supporting the placement plate and making the placement plate inclined is arranged on the base, as Figure 6 shown, the support mechanism 914 is arranged on the outer wall of the base, and it is specifically a support frame connected to the base for supporting the placement plate; the rotating connector includes two bearings arranged on the inner wall of the soaking tank, the bearing seat of each bearing is fixedly connected to the soaking tank, a rotating shaft 916 is rotatably connected to the bearing, the rotating shaft 916 is connected to the placement plate through a connecting column, and a first clamping plate 918 is arranged on the rotating shaft 916;

[0079] The first moving component 901 is a linear module. The sliding member of the linear module is connected to the washing member through a connecting plate 902. A second clamping plate 919 is provided on one side of the connecting plate 902 close to the first clamping plate 918. The first clamping plate 918 and the second clamping plate 919 contact to drive the placement plate to rotate. Specifically, the second clamping plate 919 is located on the movement path of the first clamping plate 918. When the second clamping plate 919 moves downward to the position where the first clamping plate 918 is located, the second clamping plate 919 contacts the first clamping plate 918 and drives the first clamping plate 918 to rotate downward, thereby driving the placement plate to rotate. As the second clamping plate 919 continues to move downward, when the placement plate rotates more than 90 degrees, it continues to rotate downward under its own weight until it covers the first moving component 901, and the first moving component 901 limits it to prevent it from continuing to rotate downward; the process of opening the placement plate is the opposite. Push the placement plate upward to continue to rotate upward. When the rotation angle is greater than 90 degrees, it continues to rotate downward under its own gravity until it contacts the support mechanism. At this time, the washed coupling can be placed on the placement plate for draining. That is, the placement plate can be used as both a cover plate and a draining plate, which is convenient.

[0080] In one embodiment, in order to facilitate the rotation of the first clamping plate 918, a rotating groove 917 for accommodating the first clamping plate 918 is provided on the inner wall of the soaking tank.

[0081] In one embodiment, a convex block 17 cooperating with the placement plate is provided on the top surface of the sliding member of the first moving component 901 away from the placement plate. The abutment of the convex block 17 against the placement plate assists the placement plate to rotate better.

[0082] In one embodiment, as Figure 2As shown, a disassembly auxiliary tooling is provided on the disassembly operation table 2. The disassembly auxiliary work includes a rotating platform 8 for placing a coupling. Specifically, the rotating platform 8 includes a fixed part and a rotating part. The fixed part is in contact with the disassembly operation table 2, and the rotating part can rotate relative to the fixed part. After placing the coupling on the rotating part, the coupling can be driven to rotate by starting the rotating platform 8; a first telescopic mechanism 5 cooperating with the rotating platform 8 is provided on the disassembly operation table 2. A mechanical gripper is connected to the first telescopic mechanism 5. The disassembly auxiliary tooling further includes a disassembly mechanism. The disassembly mechanism includes a fixed frame. A rotating mechanism (rotating motor) is provided on the fixed frame. A second telescopic mechanism 6 is connected to the rotating mechanism. A straight bolt wrench 7 is connected to the second telescopic mechanism 6. In this embodiment, the fixed frame is further connected to a third telescopic mechanism 3. The third telescopic mechanism 3 is connected to the sliding member of the sliding mechanism 4. In this embodiment, the sliding mechanism 4 is a linear module, and its sliding member is connected to the third telescopic mechanism 3 and can drive the third telescopic mechanism 3 to slide up and down. The telescopic direction of the third telescopic mechanism 3 is perpendicular to the sliding direction of the sliding mechanism 4; the disassembly mechanism can be driven by the sliding mechanism 4 and the third telescopic mechanism 3 to move above the coupling to be disassembled. To facilitate the mechanical gripper to grasp the coupling, a placement marking area can be provided on the rotating platform 8. In addition to marking the placement position of the coupling on the placement marking area, the positions of the bolts also need to be marked. When the operator places the coupling, not only does the coupling need to be placed at the placement position of the coupling, but also the bolts on the coupling need to be aligned with the bolt markings; after placing the coupling on the placement marking area, the coupling can be aligned with the mechanical gripper. By the telescoping of the first telescopic mechanism 5, the mechanical gripper can be driven to reach the position of the connecting shaft so that the mechanical gripper grasps the coupling; further, a pressure sensor can also be provided in the placement marking area of the rotating platform 8. When the pressure sensor receives a pressure signal, the disassembly program is automatically started, such as automatically starting the first telescopic mechanism 5 to make the mechanical gripper grasp the coupling, automatically starting the third telescopic mechanism 3, and the sliding mechanism 4 to drive the disassembly mechanism to align with the flange hole, etc.;

[0083] To achieve automatic grasping, a rangefinder can also be provided at the grasping center of the mechanical gripper. When the rangefinder detects that the distance between the grasping center of the mechanical gripper and the coupling exceeds the set value when the mechanical gripper grasps the coupling, the mechanical gripper automatically closes to achieve grasping; after the disassembly is completed, to facilitate removing the coupling, the first telescopic mechanism 5 also needs to be controlled to contract. The contraction distance can also be detected by the rangefinder and stop contracting when the distance reaches the set value.

[0084] In this embodiment, two disassembly mechanisms are provided, and the positions of the two disassembly mechanisms correspond to the positions of the flange holes on the large flange of the coupling. Since in the prior art, when disassembling bolts, it is necessary to insert a bolt wrench from the large flange hole on one side of the large flange. In the present invention, due to the provision of a mechanical gripper to fix the coupling, the part grasped by the mechanical gripper cannot insert the bolt wrench 7. Therefore, two disassembly mechanisms are provided to simultaneously disassemble two bolts. After each disassembly, the rotating platform 8 drives the coupling to rotate, so that the next position reaches the two disassembly mechanisms to automatically disassemble the next two bolts. Therefore, the disassembly of the bolts can be achieved without manual assistance, further improving the disassembly efficiency.

[0085] The specific steps of using the disassembly auxiliary tooling are as follows:

[0086] The operator places the large flange side of the coupling facing upwards on the rotating platform 8, and then the first telescopic mechanism 5 extends to drive the mechanical gripper (in the open state) close to the coupling. When the distance measuring instrument detects that the distance is less than or equal to the threshold, the extension of the first telescopic mechanism 5 is stopped, and the mechanical gripper is started to grasp the coupling to prevent the coupling from rotating during the disassembly process. After the coupling is fixed, the established program is started, and the third telescopic mechanism 3 and the sliding mechanism 4 cooperate to align the two bolt wrenches 7 with two adjacent large flange holes. After alignment, first drive the bolt wrench 7 to move downward through the sliding mechanism 4, so that the outer cylinder of the second telescopic mechanism 6 abuts against the large flange surface of the coupling. Subsequently, the inner cylinder located inside the outer cylinder of the second telescopic mechanism 6 extends out of the outer cylinder (the bolt wrench 7 inside the inner cylinder can pass through the large flange hole, but the outer cylinder cannot), driving the bolt wrench 7 to continue moving downward until the bolt wrench 7 contacts the bolt head. Subsequently, the rotating mechanism drives the second telescopic mechanism 6 and the bolt wrench 7 to rotate, and at the same time, the second telescopic mechanism 6 drives the bolt wrench 7 to move upward while contacting the bolt head, so as to automatically unscrew the bolt. Since two disassembly mechanisms are provided to simultaneously disassemble two bolts; after the bolts at these two positions are disassembled, first, the bolt wrench 7 is separated from the coupling through the cooperation of the third telescopic mechanism 3 and the sliding mechanism 4. Subsequently, the mechanical gripper can be started to stop grasping, and the first telescopic mechanism 5 is started to slightly retract backward. Subsequently, the rotating platform 8 is started to drive the coupling to rotate by a set angle, so that the new two large flange holes are aligned with the two disassembly mechanisms, and then the above operations are repeated to complete the disassembly of the bolts.

[0087] In one of the embodiments, a transportation mechanism is further included, and the transportation mechanism is used to transport the coupling cleaned in the rough washing section to the fine washing section 11. In this embodiment, the transportation mechanism can be a mechanical gripper. Tracks for the mechanical gripper to move can be provided on the ground of the maintenance room, and a moving trolley is arranged on the tracks. The moving trolley can drive the mechanical gripper to move to the required section according to the program setting to realize the transfer of the coupling.

[0088] A coupling maintenance method includes the following steps:

[0089] S1: Manually check and take pictures of the coupling serial number and taper hole to determine whether there are bumps, scratches and corrosion. Reject those that do not meet the requirements and proceed to the next process for those that meet the requirements;

[0090] S2: Disassemble the shaft connection in the disassembly section. Specifically, the operator places the coupling large flange side up on the rotating platform 8, then the first telescopic mechanism 5 extends to drive the mechanical gripper (in the open state) close to the coupling. When the rangefinder detects that the distance is less than or equal to the threshold, stop the extension of the first telescopic mechanism 5 and start the mechanical gripper to grip the coupling to prevent the coupling from rotating during disassembly. After the coupling is fixed, start the established program to make the third telescopic mechanism 3 and the sliding mechanism 4 cooperate to align the two bolt wrenches 7 with two adjacent large flange holes. After alignment, first drive the bolt wrench 7 to move downward through the sliding mechanism 4 so that the outer cylinder of the second telescopic mechanism 6 abuts against the large flange surface of the coupling. Then the inner cylinder located in the outer cylinder of the second telescopic mechanism 6 extends out of the outer cylinder (the bolt wrench 7 in the inner cylinder can pass through the large flange hole, and the outer cylinder cannot pass through), driving the bolt wrench 7 to continue moving downward until the bolt wrench 7 contacts the bolt head. Subsequently, the rotating mechanism drives the second telescopic mechanism 6 and the bolt wrench 7 to rotate, and at the same time the second telescopic mechanism 6 drives the bolt wrench 7 to move upward while contacting the bolt head, so as to automatically unscrew the bolt. Since 2 disassembly mechanisms are provided, 2 bolts can be disassembled simultaneously. After the disassembly of the bolts at these two positions is completed, first make the bolt wrench 7 disengage from the coupling through the cooperation of the third telescopic mechanism 3 and the sliding mechanism 4, then the mechanical gripper can be started to stop gripping, and the first telescopic mechanism 5 can be started to slightly retract backward. Subsequently, start the rotating platform 8 to drive the coupling to rotate by a set angle so that the new two large flange holes are aligned with the 2 disassembly mechanisms, and then repeat the above operation to complete the bolt disassembly, and then other disassembly work can be completed manually;

[0091] S3: Send the disassembled coupling sleeve and shaft sleeve to the cleaning section for cleaning, and replace or manually clean the remaining components. The cleaning steps in the cleaning section are as follows:

[0092] S301: Place the coupling on the supporting plate 906, then start the second moving component 4 to make the coupling enter the soaking pool along with the supporting plate 906. During this process, the grease cleaning liquid passes through the first liquid passing hole 7 to reduce the resistance of movement;

[0093] S302: After the soaking is completed, start the first moving component 901 to drive the scrubbing part to move downward and enter the soaking pool. During this process, when the second clamping plate 919 on the first moving component 901 moves to the first clamping plate 918, it drives the placement plate to turn over. Until the first moving component 901 completely moves into the soaking pool, the placement plate just covers the top of the soaking pool, thus blocking the top of the soaking pool (the position of the placement plate changes from Figure 6 to Figure 7 ), preventing the splashing of the grease cleaning liquid during the scrubbing process; then start the scrubbing part to scrub the coupling; after the scrubbing is completed, the first moving component 901 drives the placement plate to turn over again until the placement plate contacts the support mechanism, and then the second moving component 4 drives the supporting plate 906 to move upward until the coupling disengages from the soaking pool, and then the coupling on the supporting plate 906 is transferred to the placement plate by the transportation mechanism for draining;

[0094] S303: After the draining is completed, transfer the scrubbed coupling to the cleaning frame on the transfer mechanism through the transportation mechanism, and then perform vacuum cleaning;

[0095] S304: The transfer mechanism 10 transports the coupling after the vacuum cleaning to the rinsing and draining mechanism for rinsing and draining to obtain the cleaned coupling;

[0096] S4: After the cleaning is completed, check each component again;

[0097] S5: Pre-assemble the components that meet the requirements after inspection in the assembly section 12;

[0098] S6: Grease the pre-assembled coupling components;

[0099] S7: Assemble the greased coupling components into a complete coupling.

[0100] The above embodiments only represent the specific implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the protection scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the technical solution of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application.

Claims

1. A coupling maintenance production line, characterized in that: Including: A disassembly section for disassembling the coupling to be overhauled; A cleaning section for cleaning the disassembled coupling, including a rough cleaning section and a fine cleaning section (11); The rough cleaning section includes a rough cleaning machine (9), and the rough cleaning machine (9) includes: An immersion tank with a grease cleaning liquid provided therein; A coupling supporting mechanism movably arranged in the immersion tank, and a first liquid passing hole (907) is provided on the coupling supporting mechanism; A brushing mechanism including a brushing member arranged directly above the coupling supporting mechanism for brushing the coupling located on the coupling supporting mechanism; The fine cleaning section (11) includes a cleaning machine, and the cleaning machine includes: a vacuum cleaning mechanism for cleaning the coupling again using ultrasonic waves and a grease cleaning liquid; a rinsing and draining mechanism for rinsing and draining the coupling that has passed through the vacuum cleaning mechanism; a transfer mechanism (10) for transferring the coupling between the vacuum cleaning mechanism and the rinsing mechanism; An assembly section (12) for assembling the cleaned coupling.

2. The overhaul production line of a coupling according to claim 1, wherein: The rough cleaning machine (9) includes a temporary storage mechanism arranged around the immersion tank, and the temporary storage mechanism includes an inclined placement plate, and the lower end with a lower position of the placement plate is arranged above the immersion tank.

3. The overhaul production line of a coupling according to claim 2, characterized in that: The placement plate includes an upper plate (908) and a lower plate (913), a receiving groove (912) is provided on the lower plate (913), one end of the receiving groove (912) is located directly above the immersion tank and communicates with the outside, the upper plate (908) is arranged in the receiving groove (912), and there is a gap between the upper plate (908) and the bottom of the receiving groove (912), and a second liquid passing hole (909) communicating with the receiving groove (912) is provided on the upper plate (908).

4. A coupling maintenance production line according to claim 2 or 3, characterized in that: The rough cleaning machine (9) includes a base, the immersion tank is arranged on the base, one end of the placement plate is rotatably connected to the inner wall of the immersion tank through a rotating connecting member, a supporting mechanism (914) for supporting the placement plate and making the placement plate inclined is arranged on the base, the brushing mechanism further includes a first moving component (901) capable of driving the brushing member to move up and down, and when the brushing member moves downward into the immersion tank, it drives the placement plate to rotate to cover the immersion tank, and when the brushing member moves upward out of the immersion tank, it drives the placement plate to rotate to contact the supporting mechanism (914).

5. The overhaul production line of a coupling according to claim 4, characterized in that: The rotating connecting member includes at least two bearings arranged on the inner wall of the immersion tank, the bearing seat of each bearing is fixedly connected to the immersion tank, a rotating shaft (916) is rotatably connected to the bearing, the rotating shaft (916) is connected to the placement plate through a connecting column, and a first clamping plate (918) is arranged on the rotating shaft (916); The slider of the first moving component (901) is connected to the scrubbing component, and a second clamping plate (919) is arranged on one side of the slider of the first moving component (901) close to the first clamping plate (918). The rotation of the placement plate is driven by the contact between the first clamping plate (918) and the second clamping plate (919).

6. A coupling maintenance production line according to any one of claims 1-5, characterized in that: The disassembly section includes a disassembly operation table (2), a disassembly auxiliary tooling is arranged on the disassembly operation table (2), the disassembly auxiliary work includes a rotating platform (8) for placing a coupling, a first telescopic mechanism (5) matching with the rotating platform (8) is arranged on the disassembly operation table (2), a mechanical gripper is connected to the first telescopic mechanism (5), the disassembly auxiliary tooling further includes a disassembly mechanism, the disassembly mechanism includes a fixed frame, a rotating mechanism is arranged on the fixed frame, a second telescopic mechanism (6) is connected to the rotating mechanism, and a straight bolt wrench (7) is connected to the second telescopic mechanism.

7. A coupling overhaul production line according to claim 6, characterized in that: There are two disassembly mechanisms, and the positions of the two disassembly mechanisms respectively correspond to the positions of two adjacent flange holes on the large flange of the coupling.

8. A coupling maintenance production line according to any one of claims 1-5, characterized in that: The scrubbing component includes a support cylinder (903), a first brush layer (905) is arranged outside the support cylinder (903), and the first brush layer (905) is matched with the meshing surface of the internal gear on the coupling sleeve. A groove (911) extending upward is arranged at the bottom of the support cylinder (903), a second brush layer (910) is arranged on the inner wall of the groove (911), and the second brush layer (910) is matched with the meshing surface of the external gear on the coupling bushing.

9. A coupling maintenance method, characterized in that: It is carried out by using the coupling overhaul production line according to any one of claims 1-8, including the following steps: S1: Check and photograph the coupling serial number and taper hole, judge whether there are bumps, scratches and corrosion, eliminate those that do not meet the requirements, and proceed to the next process for those that meet the requirements; S2: Disassemble the coupling in the disassembly section; S3: Send the disassembled coupling sleeve and bushing into the cleaning section for cleaning, and replace or manually clean the remaining components; S4: Re-check each component after cleaning after cleaning is completed; S5: Pre-assemble the components that meet the requirements after inspection in the assembly section (12); S6: Grease the pre-assembled coupling components; S7: Assemble the greased coupling components into a complete coupling.

10. A coupling overhaul method according to claim 9, characterized in that: S3 includes the following steps: S301: Place the coupling component on the coupling supporting mechanism, and drive the coupling component into the soaking pool through the coupling supporting mechanism for soaking; S302: After soaking, start the brushing mechanism to brush the coupling component; S303: Transfer the brushed coupling component to the vacuum cleaning mechanism for vacuum cleaning; S304: Transport the coupling component after vacuum cleaning to the rinsing and draining mechanism through the transfer mechanism (10) for rinsing and draining to obtain the cleaned coupling.

Images