Transmission housing cleaning device and method

Abstract

The present invention belongs to the technical field of cleaning equipment, and specifically relates to a transmission housing cleaning device and method, a frame body; a crawler track that is inserted into the frame body to transport the transmission housing, which is bent by a support roller to form a "Z"-shaped staggered layer; a first spray assembly that is arranged on the upper layer of the crawler track to clean the upper surface of the transmission housing, and the first spray assembly includes a first spray main pipe and a first spray branch pipe extending into the "Z"-shaped staggered space; a second spray assembly includes a second spray main pipe arranged horizontally and a second spray branch pipe longitudinally parallel to the conveying direction of the crawler track; a flip assembly that is used to receive the transmission housing on the upper layer and flip it over to place it on the crawler on the lower layer. The present invention can improve the traditional crawler-type spray cleaning equipment, flip the transmission housing during the cleaning process, and then thoroughly clean all its sides without the need for repeated cleaning, thereby improving the cleaning efficiency and quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning equipment, and in particular relates to a transmission housing cleaning device and method. Background Art

[0002] The transmission case is a key component of the transmission. It plays multiple roles, such as protecting the internal parts of the transmission, supporting the transmission components, and storing lubricating oil. The surface of the transmission case is prone to oil, dust, and particulate impurities. When the transmission is recycled and remanufactured, it needs to be cleaned to better ensure the operating performance and service life of the transmission.

[0003] The transmission housing was first cleaned manually. Although manual cleaning has good cleaning effects, the work efficiency is extremely low and has long been replaced by automated and semi-automated equipment. There are two main types of cleaning equipment currently used: one is a box-type cleaning device, which places the transmission housing in the cleaning device and cleans it by spraying, ultrasonic waves, etc. The defect of this type of equipment is that it can only clean the transmission housing one by one, and the cleaning efficiency is low; the other is a crawler-type spray cleaning device. Compared with the box-type cleaning device, this type of equipment has improved efficiency, but due to its structural characteristics, it can generally only clean one side and cannot effectively clean all sides of the transmission housing. The cleaning is not thorough, resulting in the need to repeatedly clean the same transmission housing, which reduces its efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission case cleaning device and method, which can improve the traditional crawler spray cleaning equipment, turn the transmission case over during the cleaning process, and then thoroughly clean all sides of it without the need for repeated cleaning, thereby improving the cleaning efficiency and quality.

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

[0006] A transmission housing cleaning device, comprising:

[0007] Rack frame;

[0008] A crawler track is installed in the frame body to transport the transmission housing, and is provided with a support roller to bend to form a "Z"-shaped staggered layer, so as to turn over the upper and lower surfaces of the transmission housing through the "Z"-shaped staggered layer, and a uniform array of water-permeable holes is opened on the surface of the crawler track;

[0009] A first spray assembly is arranged on the upper layer of the crawler to clean the upper surface of the transmission housing, the first spray assembly includes a first spray main pipe and a first spray branch pipe extending into the "Z"-shaped staggered space, the first spray branch pipe is integrally formed with a port pipe, the port pipe is installed with a movable spray head that contacts the crawler surface, and cooperates with the water permeable hole to spray water to flip the transmission housing;

[0010] A second spray assembly is arranged at the lower layer of the crawler to clean the lower surface and side of the transmission housing, and the second spray assembly includes a second spray main pipe arranged transversely and a second spray branch pipe longitudinally parallel to the conveying direction of the crawler;

[0011] The flip assembly arranged at the "Z"-shaped staggered position of the track is used to receive the transmission housing of the upper layer and flip it over to place it on the track of the lower layer. The flip assembly includes a supporting plate flush with the top surface of the upper track, and a rubber roller is rotatably connected to the supporting plate.

[0012] As a preferred solution, an array of upper spray heads facing the track is installed on the first spray main pipe, and one group of the first spray main pipes is connected to the first spray branch pipe via an L-shaped branch pipe, and a diversion inner pipe for evenly dispersing the water flow is fixedly installed inside the first spray branch pipe.

[0013] As a preferred solution, the movable nozzle includes a support ring fixedly embedded in the port tube, a sealing plug slidably embedded in the support ring, a limit spring fixedly embedded between the top surface of the sealing plug and the top wall of the support ring, an annular bracket is integrally formed with the bottom surface of the sealing plug, a hemispherical nozzle is integrally formed with the bottom surface of the annular bracket, and an annular elastic rubber ring is surrounded by the edge of the hemispherical nozzle and the port tube.

[0014] As a preferred solution, the crawler has an integrally formed hole-shaped valve in the water-permeable hole to form a protrusion on the crawler surface to increase the adhesion of the transmission housing, and the valve can change the direction of the protrusion under the impact of water flow.

[0015] As a preferred solution, one group of the second spray main pipes is equipped with a lower spray head facing the track, and another group of the second spray main pipes is connected to the second spray branch pipes via an L-shaped connecting pipe, and the second spray branch pipes are equipped with side spray heads facing the track.

[0016] As a preferred solution, both ends of the second spray branch pipe are rotatably connected to the horizontal section of the L-shaped connecting pipe by means of water-sealed bearings, and both ends of the L-shaped connecting pipe extend to the inside of the second spray branch pipe and are staggered with liquid outlet grooves, and the inside of the second spray branch pipe is integrally formed with spiral blades to drive the second spray branch pipe to rotate under the impact of water flow, and sealing covers for alternately blocking the liquid outlet grooves are fixedly installed on the same side of both ends of the second spray branch pipe to change the water outlet position, so that the second spray branch pipe can rotate and swing up and down in a cycle to clean the side of the transmission housing.

[0017] As a preferred solution, the supporting plate is also rotatably connected to a limiting roller, four limiting rubber plates are fixedly installed on the limiting roller, a one-way ratchet disk is installed between the rotating shaft of the limiting roller and the supporting plate to limit the one-way rotation of the limiting roller in the conveying direction, a supporting foot is integrally formed at the bottom of the supporting plate, a brake motor is fixedly installed on the frame body, the brake motor is connected to a drive shaft through a reducer transmission, and is fixedly installed in the supporting foot.

[0018] As a preferred solution, a driving roller is provided inside the crawler to drive it to rotate around the supporting roller, a servo motor is fixedly mounted on the frame, and a power output end of the servo motor is transmission-connected to the driving roller via a synchronous belt set.

[0019] As a preferred solution, it further includes at least one group of cooling pumps and at least one group of plunger pumps, wherein the cooling pumps are used to supply cleaning liquid to the second spray assembly, and the plunger pumps are used to supply cleaning liquid to the first spray assembly.

[0020] A transmission housing cleaning method, applied to the above-mentioned transmission housing cleaning device, comprises the following steps:

[0021] Step 1: Place the concave surface of the transmission housing downward and equidistantly on the upper surface of the crawler, and transmit it to the lower part of the first spray pipe through the crawler to perform high-pressure spray cleaning on the upper convex surface to remove stains on the upper surface;

[0022] Step 2: After the upper surface of the transmission housing is cleaned, it is gradually pushed to the surface of the carrier plate by means of the crawler until it is completely separated from the upper layer of the crawler, and then the carrier plate is turned counterclockwise, thereby driving the transmission housing to turn counterclockwise at the same time until it slides off the surface of the carrier plate, turning it into a concave surface facing up and the other side facing down;

[0023] Step 3: In step 2, during the process of the carrier plate and the transmission housing turning over together, the first spray branch pipe sprays water through the movable nozzle and the water-permeable hole through the crawler to the bottom of the turning transmission housing, and uses the impact force of the water flow to make it turn counterclockwise stably and move synchronously along the conveying direction of the crawler to turn it into a concave surface facing upward;

[0024] Step 4: The transmission case is transferred to the second spray assembly through the lower layer of the crawler. When passing through the second spray main pipe and the second spray branch pipe, the lower concave surface of the transmission case is cleaned by high-pressure spraying using the second spray main pipe, and the side surface of the transmission case is cleaned by high-pressure spraying using the second spray branch pipe. After that, the cleaned transmission case is transferred out.

[0025] Step 5: In step 4, the transmission housing after flipping is transferred by the lower layer of the crawler, and the carrier plate is reset to transfer the next transmission housing after flipping, and the process is repeated to clean the transmission housing.

[0026] The technical effects achieved by the present invention are:

[0027] The present invention bends the crawler track to form a "Z"-shaped staggered layer, and cooperates with the flipping component. After the convex surface of the transmission case is cleaned, it can be flipped over so that the concave surface is flipped upward, thereby cleaning the concave surface and simultaneously cleaning each side surface, so that each surface of the transmission case can be cleaned more thoroughly, solving the problem that the prior art can only clean one side and needs to clean repeatedly, thereby improving the cleaning efficiency and quality. At the same time, the improvement is relatively simple, the cost is low, and it is easy to promote.

[0028] The present invention arranges a first spray branch pipe to cooperate with the movable spray head, which can improve the flipping stability of the transmission housing and cooperate with the valve to change the protruding direction of the valve, thereby improving the adhesion between the transmission housing and the track surface, making it more stably placed on the track surface, thereby improving the conveying stability and cleaning stability, ensuring the cleaning efficiency, and avoiding the situation where it falls or deviates due to the impact force of the high-pressure spray during the cleaning process.

[0029] The present invention arranges an L-shaped connecting pipe to cooperate with the second spray branch pipe. By means of a circumferential array of spiral blades inside the second spray branch pipe, the impact force of the water flow can be used to make the second spray branch pipe rotate in a circle around the L-shaped connecting pipe. The sealing cover is used to cooperate with the liquid outlet groove to change the direction of the water flow entering the second spray branch pipe, so that the second spray branch pipe is repeatedly changed by the impact force of the water flow, so that it can repeatedly rotate in a semicircle around the L-shaped connecting pipe, thereby comprehensively cleaning the side of the transmission housing, avoiding the situation where only a certain area is cleaned and incomplete cleaning occurs, thereby improving the cleaning quality and ensuring that the transmission housing can be fully cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0031] Figure 2 is a top cross-sectional view of an embodiment of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the main part in an embodiment of the present invention;

[0033] Figure 4 The present invention Figure 3 A magnified view of the part in the middle;

[0034] Figure 5 is a structural schematic diagram of another side surface of the main body part in an embodiment of the present invention;

[0035] Figure 6 is a schematic structural diagram of the first spray assembly and the track bending portion in an embodiment of the present invention;

[0036] Figure 7 is a schematic structural diagram of a first spray assembly in an embodiment of the present invention;

[0037] Figure 8 is a three-dimensional cross-sectional view of a first spray branch pipe in an embodiment of the present invention;

[0038] Fig. 9 The present invention Figure 8 A magnified view of the part in middle B;

[0039] Fig.10 is a schematic structural diagram of a flip assembly in an embodiment of the present invention;

[0040] Fig.11 is a schematic structural diagram of a second spray assembly in an embodiment of the present invention;

[0041] Fig.12 is an exploded view of the second spray branch pipe and related components in an embodiment of the present invention;

[0042] Fig.13 is a schematic diagram of the structure inside the second spray branch pipe in an embodiment of the present invention;

[0043] Fig.14 It is a three-dimensional cross-sectional view of the second spray branch pipe and related components in an embodiment of the present invention.

[0044] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0045] 1. Rack frame;

[0046] 2. Tracks;

[0047] 21. Water permeable hole; 22. Valve; 23. Support roller; 24. Driving roller; 25. Servo motor; 26. Synchronous belt set;

[0048] 3. The first spray assembly;

[0049] 31. First sprinkler main pipe; 311. Upper sprinkler head;

[0050] 32. First spray branch pipe; 321. Port pipe; 322. Diverter inner pipe; 323. Support ring; 324. Sealing plug; 325. Limit spring; 326. Hemispherical nozzle; 327. Ring bracket; 328. Ring elastic rubber ring;

[0051] 4. The second spray assembly;

[0052] 41. Second sprinkler main pipe; 411. Lower sprinkler head;

[0053] 42. Second spray branch pipe; 421. L-shaped connecting pipe; 422. Side spray head; 423. Water seal bearing; 424. Liquid outlet slot; 425. Spiral blade; 426. Sealing cover; 427. Conical sealing rubber ring;

[0054] 5. Flip the component;

[0055] 51. Loading plate; 52. Rubber roller; 53. Limiting roller; 54. Limiting rubber plate; 55. One-way ratchet disc; 56. Support foot; 57. Brake motor; 58. Drive shaft;

[0056] 6. Cooling pump;

[0057] 7. Plunger pump. DETAILED DESCRIPTION

[0058] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0059] like Figure 1-Figure 14 As shown, a transmission case cleaning device comprises a rack frame 1, a crawler 2 which is arranged in the rack frame 1 to transport the transmission case, a first spray assembly 3 which is arranged on the upper layer of the crawler 2 to clean the upper surface of the transmission case, a second spray assembly 4 which is arranged on the lower layer of the crawler 2 to clean the lower surface and the side of the transmission case, and a flip assembly 5 which is arranged at the "Z"-shaped staggered position of the crawler 2. The transmission case is transported by the crawler 2, and the upper convex surface is cleaned by the first spray assembly 3 in turn, the upper and lower surfaces of the transmission case are flipped by the flip assembly 5, and then the lower concave surface and the side are cleaned by the second spray assembly 4, and then it is transmitted out from the rack frame 1.

[0060] See attached Figure 2-Figure 3 as well as Figure 5 The crawler belt 2 is installed in the frame body 1 through the support rollers 23 installed on the frame body 1, and the four groups of support rollers 23 are bent in the middle to form a "Z" staggered layer (such as Figure 3 As shown), the upper and lower surfaces of the transmission housing are turned over through the "Z"-shaped staggered layers, and at the same time, water-permeable holes 21 are evenly arranged on the surface of the track 2, which can facilitate the cleaning liquid to pass through and flow downward into the recovery box set at the bottom of the frame body 1. At the same time, a filter is also provided on the top of the recovery box near the track 2 to filter out impurities such as oil.

[0061] Please refer to the attached Figure 5 , wherein, in order to drive the crawler 2 to rotate around the support roller 23 to transmit the transmission housing, the crawler 2 is close to the entrance, and two groups of support rollers 23 and driving rollers 24 installed on the frame body 1 form a U-shaped driving structure, and a servo motor 25 fixedly installed on the frame body 1 is used to connect its power output end with the driving roller 24 through a synchronous belt group 26 to drive the crawler 2 to rotate around the support roller 23, and at the same time tighten the crawler 2 to ensure the stability of its transmission. Of course, the frame body 1 is also provided with other support rollers 23 and support plates, which will not be repeated here.

[0062] See attached Figure 3 In this embodiment, the first spray assembly 3 is arranged at one end close to the entrance of the frame frame 1 and is located on the upper layer of the track 2, and two groups are arranged at the same time; the first spray assembly 3 includes a first spray main pipe 31, and an upper nozzle 311 facing the track 2 is installed in an array on the first spray main pipe 31, which is used to spray high-pressure cleaning liquid to clean the transmission housing passing thereunder.

[0063] Please refer to the attached Figure 1 In order to supply cleaning liquid to the two groups of first spray pipes 31, a group of plunger pumps 7 are fixedly installed on the side of the rack frame 1, and high-pressure and high-temperature cleaning liquid is supplied to the two groups of first spray pipes 31 using Y-shaped pipes. At the same time, auxiliary facilities such as control valves and pressure gauges are provided at the connection with the first spray pipes 31, and a sealed box is installed on the rack frame 1 to wrap the first spray assembly 3 to prevent leakage of cleaning liquid and steam, which will not be repeated here.

[0064] See attached Figure 3 , Figure 5 as well as Fig.10In order to flip and clean the transmission housing whose upper convex surface has been cleaned, a flipping assembly 5 is provided at the "Z"-shaped staggered position of the track 2, which is used to receive the upper transmission housing and flip it over and place it on the lower track 2. The flipping assembly 5 includes a supporting plate 51 flush with the top surface of the upper track 2, so that the transmission housing can be smoothly pushed onto the supporting plate 51 through the upper layer of the track 2. At the same time, a rubber roller 52 is rotatably connected to the supporting plate 51 to reduce the pushing friction of the transmission housing, so that it can be smoothly pushed to the supporting plate 51.

[0065] Furthermore, the carrier plate 51 is also rotatably connected to a limit roller 53, on which four limit rubber plates 54 are fixedly mounted. In this way, when the downwardly recessed transmission housing is pushed on the surface of the carrier plate 51, it can abut against the limit rubber plates 54, thereby pushing the limit roller 53 to rotate, so that the adjacent limit rubber plates 54 are rotated and embedded into the grooves of the lower concave surface of the transmission housing, and a one-way ratchet disk 55 is installed between the rotating shaft of the limit roller 53 and the carrier plate 51, so that the limit roller 53 can only rotate in one direction in the transportation direction, and then when the carrier plate 51 drives the transmission housing to flip downward counterclockwise, the limit roller 53 will not rotate in the opposite direction under the gravity of the transmission housing, so that the limit rubber plates 54 are used to limit the transmission housing from sliding off the surface of the carrier plate 51 when flipping, and will not fall until the transmission housing is rotated more than 90° to complete the flipping, so as to ensure that the transmission housing can be flipped stably.

[0066] Furthermore, in order to drive the supporting plate 51 to cooperate with the crawler track 2 to flip the transmission housing, a brake motor 57 is fixedly installed on the frame frame 1, and the brake motor 57 is connected to the drive shaft 58 through a reducer transmission, and a support foot 56 is integrally formed at the bottom of the supporting plate 51. By fixing the drive shaft 58 in the support foot 56, the brake motor 57 can be used to flip the transmitted transmission housing according to a predetermined procedure.

[0067] See attached Figure 3 , Figure 5 as well as Figure 6 In order to ensure the stability of the transmission housing flipping, one group of first spray main pipes 31 is connected to the first spray branch pipe 32 extending into the "Z"-shaped staggered space by an L-shaped branch pipe, and a port pipe 321 is integrally formed on the first spray branch pipe 32. Water can be sprayed through the port pipe 321 to clean the surface of the transmission housing, and at the same time, a spray thrust in the conveying direction is given to assist it in flipping, thereby ensuring that the transmission housing can be stably flipped in one direction.

[0068] Please refer to the attached Figure 8In the present embodiment, by fixing a diversion inner tube 322 inside the first spray branch pipe 32 and utilizing the strip-shaped through grooves provided therein at intervals, a portion of the water flow can be retained when the liquid flows and transported to the other end of the pipe, thereby evenly dispersing the water flow to all the port tubes 321 to flow out, thereby avoiding uneven water flow in different port tubes 321.

[0069] Of course, in some other embodiments, the split flow inner tube 322 may not be provided, and the selection is made according to the specific usage scenario.

[0070] Please refer to the attached Fig. 9 , a support ring 323 is fixedly embedded in the port pipe 321, and a sealing plug 324 is slidably embedded in the support ring 323, and a limit spring 325 is fixedly embedded between the top surface of the sealing plug 324 and the top wall of the support ring 323, and the bottom surface of the sealing plug 324 is integrally formed with an annular bracket 327 that can pass water flow, and the bottom surface of the annular bracket 327 is also integrally formed with a hemispherical nozzle 326 that contacts the surface of the crawler 2. After the edge of the hemispherical nozzle 326 and the port pipe 321 are sealed around the annular elastic rubber ring 328, a movable nozzle is formed as a whole, and the hemispherical nozzle 326 is used to cooperate with the water permeable hole 21 to have the following two states:

[0071] Open state: when there is a water hole 21 at the joint between the hemispherical nozzle 326 and the surface of the track 2, the hemispherical nozzle 326 will be embedded in the water hole 21 when the limit spring 325 is extended, so that the sealing plug 324 is separated from the inside of the support ring 323, making it open, and the water flow can pass through the support ring 323, the annular bracket 327 and the hemispherical nozzle 326, and spray out through the water hole 21 to clean the surface of the transmission housing, and at the same time give it a spray thrust in the conveying direction to assist it in flipping, thereby ensuring that the transmission housing can stably flip in one direction.

[0072] Closed state: as the track 2 is constantly moving, the hemispherical nozzle 326 will gradually separate from the water hole 21 and be subjected to the reverse thrust of the track 2 when separating from the water hole 21 to compress the limit spring 325 until the sealing plug 324 retracts and is completely embedded in the support ring 323 to close the channel, so that the liquid cannot flow out and the channel is in a closed state. That is, when there is no water hole 21 at the joint between the hemispherical nozzle 326 and the surface of the track 2, the nozzle 326 will be in a closed state and will not spray liquid. This can save water resources on the one hand and prevent the water flow from continuously impacting the track 2 and affecting its travel stability on the other.

[0073] Of course, in some other embodiments, such a movable nozzle structure may not be provided, and a straight-out nozzle may be directly installed, and the selection is made according to the specific usage scenario.

[0074] See attached Figure 3 and Figure 4 The track 2 has an integrally formed hole-shaped valve 22 in the water-permeable hole 21, which protrudes upward. When the transmission housing groove is placed downward on the surface of the track 2, the valve 22 can be used to prevent it from being positioned on the surface of the track 2, thereby improving the adhesion of the transmission housing to the surface of the track 2.

[0075] Please refer to the attached Figure 4 and Figure 6 In this embodiment, the valve 22 is made of rubber elastic material and can change the protrusion direction under the impact of water flow. In the process of moving with the track 2, the valve 22 that is not covered by the transmission housing and protrudes upward will be converted to a downward protrusion under the impact of the water flow, so that the water flows downward, while the part located at the bottom of the transmission housing is not impacted by the water flow and remains protruding, thereby hindering the movement of the transmission housing.

[0076] Secondly, after the convex surface of the transmission housing is cleaned and turned over, in order to continue to limit its position, the downward protruding valve 22 needs to be reset, so the first spray branch pipe 32 set in the "Z"-shaped staggered space of the crawler 2 can play the role of resetting the valve 22. During the continuous movement of the crawler 2, by embedding the hemispherical nozzle 326 into the water permeable hole 21 and spraying water, the valve 22 will be reset to the upward protrusion under the impact of the water flow, thereby limiting the position of the transmission housing after the flip again, preventing it from displacing on the surface of the crawler 2, and ensuring stability during the cleaning process.

[0077] See attached Figure 3 , Figure 5 as well as Fig.11 In this embodiment, two groups of second spray assemblies 4 are provided, which are installed at the outlet section of the frame body 1 and located at the lower layer of the crawler 2. Each group of second spray assemblies 4 includes three groups of second spray main pipes 41 arranged laterally, and the two groups of second spray main pipes 41 located at the farthest ends are connected with longitudinal second spray branch pipes 42 parallel to the conveying direction of the crawler 2 through L-shaped connecting pipes 421. At the same time, the remaining second spray main pipes 41 are equipped with lower nozzles 411 facing the crawler 2 to clean the lower concave surface of the transmission housing. At the same time, the second spray branch pipes 42 are equipped with side nozzles 422 facing the crawler 2 to clean the side surfaces of the transmission housing parallel to the forward direction.

[0078] It should be noted that, in the present embodiment, among the four groups of second spray pipes 41 equipped with lower nozzles 411, the lower nozzles 411 on the two groups of symmetrical second spray pipes 41 located at the farthest ends are inclined toward one side of their symmetrical planes, with an inclination angle of about 30°, so as to clean the sides of the transmission case perpendicular to the transmission direction during its movement. At the same time, when the transmission case moves from far to near toward the inclined lower nozzles 411, its concave surface and sides can be fully cleaned from top to bottom, with a wider coverage area, thereby ensuring that the six sides of the transmission case can be thoroughly cleaned.

[0079] Please refer to the attached Figure 1 In order to supply cleaning liquid to the two groups of second spray assemblies 4, two groups of cooling pumps 6 are fixedly installed on the side of the rack frame 1, and high-pressure and high-temperature cleaning liquid is supplied to the four groups of second spray main pipes 41 using L-shaped pipes. At the same time, auxiliary facilities such as control valves and pressure gauges are provided at the connection with the second spray main pipes 41, and a sealed box is installed on the rack frame 1 to wrap the second spray assembly 4 to prevent leakage of cleaning liquid and steam, which will not be repeated here.

[0080] See attached Figure 11-Figure 14 In order to fully clean the side of the transmission housing parallel to the conveying direction, the two ends of the second spray branch pipe 42 are rotatably connected to the horizontal section of the L-shaped connecting pipe 421 by means of water-sealed bearings 423. At the same time, the L-shaped connecting pipe 421 extends to the two ends of the second spray branch pipe 42, and liquid outlet grooves 424 are staggeredly provided at both ends of the second spray branch pipe 42, so that water can be alternately discharged at both ends of the second spray branch pipe 42. At the same time, spiral blades 425 are integrally formed inside the second spray branch pipe 42. In this way, under the impact of the water flow, the water flow flows on the surface of the spiral blade 425, forming a circumferential impact force, which can drive the second spray branch pipe 42 to horizontally surround the L-shaped connecting pipe 421. The second spray branch pipe 42 rotates, and sealing covers 426 for alternately blocking the liquid outlet slots 424 are fixedly installed on the same side of both ends of the second spray branch pipe 42. During the rotation of the second spray branch pipe 42, the two sets of sealing covers 426 can be used to alternately seal the liquid outlet slots 424 at both ends of the second spray branch pipe 42, so that water flows out alternately from both ends of the second spray branch pipe 42, thereby forming circumferential impact forces in two directions alternating in positive and negative directions, so that the second spray branch pipe 42 rotates and swings up and down in a circle, and the cleaning liquid is sprayed from the side nozzles 422 to comprehensively clean the sides of the transmission case from top to bottom, thereby ensuring that all sides of the transmission case can be thoroughly cleaned.

[0081] Of course, in some other embodiments, it is not necessary to set the relevant swing assembly between the second spray branch pipe 42 and the L-shaped connecting pipe 421, and the side nozzle 422 can be directly used for cleaning, which is selected according to specific cleaning needs.

[0082] It should be noted that, in this embodiment, the connection end between the second spray branch pipe 42 and the L-shaped connecting pipe 421 near the bend of the L-shaped connecting pipe 421 is also sealed with a conical sealing rubber ring 427, which is made of elastic rubber material, and can not hinder the rotation of the second spray branch pipe 42 while playing a sealing role, so as to ensure that the cleaning liquid can be fully transmitted to the second spray branch pipe 42. Of course, due to the presence of the water-sealed bearing 423, the conical sealing rubber ring 427 may not be provided in some other embodiments.

[0083] like Figure 1-Figure 14 As shown, a transmission housing cleaning method, applied to the transmission housing cleaning device in this embodiment, comprises the following steps:

[0084] Step 1: Place the concave surface of the transmission housing downwardly and equidistantly on the upper surface of the track 2, and use the upwardly protruding valve 22 to prevent it from moving on the surface of the track 2. Transmit it through the track 2 to the bottom of the first spray main pipe 31 for high-pressure spray cleaning of its upper convex surface to remove stains on the upper surface. At the same time, the impact force of the water flow blows the valve 22 around the transmission housing downward to facilitate the passage of the cleaning liquid.

[0085] Step 2: After the upper surface of the transmission housing is cleaned, it is gradually pushed to the surface of the carrier plate 51 using the track 2 until it is completely separated from the upper layer of the track 2, and then the carrier plate 51 is turned counterclockwise using the brake motor 57. At the same time, the limiting rubber plate 54 is used to prevent the transmission housing from sliding off the surface of the carrier plate 51 during the flipping, and it will not fall until it is rotated more than 90° to complete the flipping of the transmission housing, until it slides off the surface of the carrier plate 51, turning it into a concave surface facing up and the other side facing down.

[0086] Step three: In step two, during the process of the carrier plate 51 and the transmission housing being flipped together, the first spray branch pipe 32 passes through the movable nozzle and the water-permeable hole 21 through the track 2 to spray water to the bottom of the flipping transmission housing, and utilizes the impact force of the water flow to make it flip stably counterclockwise and move synchronously along the conveying direction of the track 2, so that it turns into a concave surface upward. At the same time, the impact force of the water flow can be used to reset the valve 22 to an upward convex position, thereby limiting the position of the transmission housing after flipping again, so that it can be stably transmitted on the lower layer of the track 2.

[0087] Step 4: The transmission case is transferred to the second spray assembly 4 through the lower layer of the crawler 2. When passing through the second spray main pipe 41 and the second spray branch pipe 42, the second spray main pipe 41 is used to perform high-pressure spray cleaning on the lower concave surface of the transmission case, and the side of the transmission case in the vertical transmission direction is fully cleaned from top to bottom through the inclined lower nozzle 411. At the same time, the second spray branch pipe 42 is used to swing up and down under the impact force of the water flow, and the cleaning liquid is sprayed from the side nozzle 422 to fully clean the side of the transmission case from top to bottom, thereby completing the six-sided cleaning of the transmission case, and then the cleaned transmission case is transmitted out.

[0088] Step 5: In step 4, while the overturned transmission housing is transferred by the lower layer of the crawler 2, the support plate 51 is reset under the drive of the brake motor 57 to transfer the next overturned transmission housing, and the cycle is repeated to clean the transmission housing.

[0089] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A transmission housing cleaning device, characterized in that: include: Rack frame (1); A crawler (2) passing through the frame body (1) for transporting the transmission housing is provided with a support roller (23) and is bent to form a "Z"-shaped staggered layer, so as to turn over the upper and lower surfaces of the transmission housing through the "Z"-shaped staggered layer, and a surface of the crawler (2) is provided with water-permeable holes (21) in a uniform array; A first spray assembly (3) is arranged on the upper layer of the crawler (2) to clean the upper surface of the transmission housing, the first spray assembly (3) comprising a first spray main pipe (31) and a first spray branch pipe (32) extending into the "Z"-shaped staggered space, the first spray branch pipe (32) being integrally formed with a port pipe (321), the port pipe (321) being provided with a movable spray head that contacts the surface of the crawler (2) and cooperates with the water permeable hole (21) to spray water to flip the transmission housing; A second spray assembly (4) is arranged at the lower layer of the crawler (2) to clean the lower surface and side surfaces of the transmission housing, the second spray assembly (4) comprising a second spray main pipe (41) arranged transversely and a second spray branch pipe (42) arranged longitudinally parallel to the conveying direction of the crawler (2); A turning assembly (5) is arranged at a "Z"-shaped staggered position of the crawler (2), and is used to receive the transmission housing of the upper layer and turn it over to place it on the crawler (2) of the lower layer. The turning assembly (5) comprises a bearing plate (51) flush with the top surface of the crawler (2) of the upper layer, and a rubber roller (52) is rotatably connected to the bearing plate (51); The crawler (2) is integrally formed with a hole-shaped valve (22) in the water-permeable hole (21) to form a protrusion on the surface of the crawler (2) to increase the adhesion of the transmission housing, and the valve (22) can change the direction of the protrusion under the impact of water flow.

2. A transmission case cleaning device according to claim 1, characterized in that: An array of upper spray heads (311) facing the crawler (2) is installed on the first spray main pipes (31), wherein a group of the first spray main pipes (31) is connected to the first spray branch pipes (32) via an L-shaped branch pipe, and a flow dividing inner pipe (322) for evenly dispersing water flow is fixedly installed inside the first spray branch pipes (32).

3. A transmission case cleaning device according to claim 1, characterized in that: The movable spray head comprises a support ring (323) fixedly embedded in the port tube (321), a sealing plug (324) slidably embedded in the support ring (323), a limit spring (325) fixedly embedded between the top surface of the sealing plug (324) and the top wall of the support ring (323), an annular bracket (327) integrally formed on the bottom surface of the sealing plug (324), a hemispherical spray head (326) integrally formed on the bottom surface of the annular bracket (327), and an annular elastic rubber ring (328) surrounding the edge of the hemispherical spray head (326) and the port tube (321).

4. A transmission case cleaning device according to claim 1, characterized in that: One group of the second spray main pipes (41) is provided with a lower spray head (411) facing the crawler (2), and another group of the second spray main pipes (41) is connected to the second spray branch pipes (42) via an L-shaped connecting pipe (421), and the second spray branch pipes (42) are provided with a side spray head (422) facing the crawler (2).

5. A transmission case cleaning device according to claim 4, characterized in that: The two ends of the second spray branch pipe (42) are rotatably connected to the horizontal section of the L-shaped connecting pipe (421) by means of water-sealed bearings (423); the two ends of the L-shaped connecting pipe (421) extending to the inside of the second spray branch pipe (42) are staggeredly provided with liquid outlet grooves (424); the second spray branch pipe (42) is integrally formed with spiral blades (425) to drive the second spray branch pipe (42) to rotate under the impact of water flow; sealing covers (426) for alternately blocking the liquid outlet grooves (424) are fixedly mounted on the same side of both ends of the second spray branch pipe (42) to change the water outlet position of the water flow, so that the second spray branch pipe (42) rotates and swings up and down in a circular manner to clean the side of the transmission housing.

6. A transmission case cleaning device according to claim 1, characterized in that: The bearing plate (51) is also rotatably connected to a limit roller (53), and four limit rubber plates (54) are fixedly mounted on the limit roller (53). A one-way ratchet disc (55) is mounted between the rotation axis of the limit roller (53) and the bearing plate (51) to limit the limit roller (53) to unidirectionally rotate in the conveying direction. A support foot (56) is integrally formed at the bottom of the bearing plate (51), and a brake motor (57) is fixedly mounted on the frame body (1). The brake motor (57) is connected to a drive shaft (58) via a reducer and is fixedly mounted in the support foot (56).

7. The transmission case cleaning device according to claim 1, characterized in that: A driving roller (24) is provided in the crawler belt (2) for driving the crawler belt to rotate around the supporting roller (23). A servo motor (25) is fixedly mounted on the frame body (1). The power output end of the servo motor (25) is connected to the driving roller (24) through a synchronous belt group (26).

8. The transmission case cleaning device according to claim 1, characterized in that: It also comprises at least one group of cooling pumps (6) and at least one group of plunger pumps (7), wherein the cooling pumps (6) are used to supply cleaning liquid to the second spray assembly (4), and the plunger pumps (7) are used to supply cleaning liquid to the first spray assembly (3).

9. A transmission housing cleaning method, applied to the transmission housing cleaning device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: The concave surface of the transmission housing is placed downwardly and equidistantly on the upper surface of the crawler (2), and is transmitted through the crawler (2) to the bottom of the first spray main pipe (31) to perform high-pressure spray cleaning on the upper convex surface to remove stains on the upper surface; Step 2: After the upper surface of the transmission housing has been cleaned, the crawler (2) is used to gradually push it onto the surface of the carrier plate (51) until it is completely separated from the upper layer of the crawler (2), and then the carrier plate (51) is turned counterclockwise, thereby driving the transmission housing to turn counterclockwise at the same time until it slides off the surface of the carrier plate (51), turning it into a concave surface facing upward and the other side facing downward; Step three: in step two, during the process of the carrier plate (51) and the transmission housing being turned over together, the first spray branch pipe (32) passes through the movable spray head and the water permeable hole (21) through the crawler (2) to spray water toward the bottom of the turning transmission housing, and utilizes the impact force of the water flow to make it turn counterclockwise stably and move synchronously along the conveying direction of the crawler (2), so that it turns into a concave surface facing upward; Step 4: The transmission housing is transferred to the second spray assembly (4) through the lower layer of the crawler (2); when passing through the second spray main pipe (41) and the second spray branch pipe (42), the lower concave surface of the transmission housing is cleaned by high-pressure spraying using the second spray main pipe (41); and the side surface of the transmission housing is cleaned by high-pressure spraying using the second spray branch pipe (42); and the cleaned transmission housing is then transferred out; Step five: In step four, the transmission housing that has been turned over is transported using the lower layer of the crawler (2), while the carrier plate (51) is reset to turn over and transport the next transmission housing, and the process is repeated to clean the transmission housing.

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