Coupling cleaning device

Abstract

The utility model relates to a coupling cleaning device which is characterized in that the two ends of a roller shaft in the device are arranged on a table top of a working table through a roller shaft fixing bracket, an inner cleaning motor for fixing an inner cleaning brush is arranged at one end of the table top of the working table, and an outer cleaning brush and an outer cleaning motor are fixed in an outer cleaning fixing bracket at the other end of the table top of the working table; a cylinder is arranged on one side of the workbench at one end of the internal washing motor and is connected with an air pump through an air pipeline, and a piston rod of the cylinder is fixedly connected with a bearing plate in the internal washing clamp; a coupling fed from the feeding channel is clamped by the bearing plate, the fixed baffle and the movable baffle and is washed by the inner washing brush; the coupling washed by the inner washing brush falls on the roll shaft and is conveyed to the outer washing brush for washing; and the air pump, the inner washing motor, the outer washing motor, the roll shaft driving motor, the oil pump and the stroke sensing switch are all connected with a PLC in the power distribution cabinet through cables. According to the device, the cleaning efficiency of the coupling is greatly improved, the maintenance quality of the coupling is improved, and the subsequent problem that the problem coupling is buried in production when the problem coupling is put into a well is completely eradicated.

Description

Technical Field

[0001] The utility model relates to cleaning equipment for oil pipe couplings and pumping rod couplings in the petroleum industry, in particular to a coupling cleaning device. Background Art

[0002] In order to reduce production costs and reuse production materials, various types of sucker rod couplings and tubing couplings used in various downhole construction operations in oil wells can continue to be used after being recycled, cleaned and tested.

[0003] The sucker rod couplings and oil pipe couplings that have been used and recovered underground are full of oil. Due to the lack of special coupling cleaning equipment, the cleaning of sucker rod couplings and oil pipe couplings is currently done manually. The existing tools used for manual cleaning of couplings are diesel pools, diesel, cotton yarn, wire brushes, small wooden stools, leather aprons and masks, and the cleaning method is that employees flush and wipe them bit by bit.

[0004] In order to clean it thoroughly, the following steps are required: 1. Before manual cleaning, first put the coupling into the diesel pool for soaking.

[0005] 2. After soaking, the operator wears thick, airtight rubber gloves, holds the coupling in one hand and cotton yarn in the other hand to wipe the inside and outside of the coupling, and then uses diesel to flush and clean the inside and outside of the coupling.

[0006] During the operation, the diesel used for flushing splashed on the workers from time to time, making them covered with oil. Because the inner diameter of the sucker rod coupling is small, it is not easy for the flushing brush to clean the inner thread.

[0007] The current manual cleaning method for sucker rods and oil pipe couplings still has the following disadvantages: 1. The couplings that are stained with diesel are in close contact with the employees' bodies, and the strong smell irritates the respiratory tract of the cleaning employees, injures the body, and pollutes the environment.

[0008] 2. The inner diameter of the sucker rod coupling is small, and the dirt in the inner thread is not cleaned thoroughly, which may lead to coupling inspection errors and the maintenance quality cannot be guaranteed.

[0009] 3. Wearing rubber gloves on your hands is cold in winter and hot in summer, and the sweat on your hands cannot be discharged, which can easily lead to skin inflammation and damage the skin. If you continue to work after dermatitis occurs in summer, the inflammation cannot be recovered.

[0010] 4. Manual cleaning operation consumes a large amount of diesel, and when the cleaning efficiency is low, it also increases production costs.

[0011] 5. When employees hold the oily coupling and turn it over to clean it, it is particularly easy for it to fall off their hands, and the coupling and brush will fall into the diesel pool, causing the cleaning diesel to splash and drip onto the ground at the maintenance site, causing unnecessary cleaning workload and a low safety factor for the operation, posing a greater safety risk.

[0012] 6. The above manual cleaning operation can only clean about 35 couplings per person per hour on average. The cleaning operation time is long, which seriously affects the cleaning time and cleaning amount of the couplings. The workers have a heavy workload, high work intensity and low work efficiency.

[0013] At present, manual cleaning of couplings is time-consuming and laborious, with high labor intensity and low work efficiency. When the cleaning quality cannot be guaranteed, the maintenance quality of the couplings is reduced, which has an adverse effect on production and use. Therefore, it is necessary to manufacture a coupling cleaning device to solve the problem of difficulty in cleaning sucker rod couplings and oil pipe couplings.

[0014] After searching, the following patent technologies related to it have been disclosed: Chinese patent application number: CN201811203454.3, application date: 2019-02-01 discloses a wellhead cleaning device for straightening sucker rods for well repair operations and its operation method. The wellhead cleaning device includes a main body, a gland is provided at the upper end of the main body, and the lower end of the main body is connected to the oil pipe coupling through a lower joint; a card table is provided inside the main body, and the card table divides the main body into an upper sealing chamber and a lower cleaning chamber, and an oil scraper sleeve is provided in the sealing chamber, and a liquid inlet is provided on the outer side of the cleaning chamber, and the sucker rod passes through the lower joint, the cleaning chamber, the oil scraper sleeve and the gland in sequence. The above invention adopts an overall design, which reduces the height of the device and is convenient for wellhead operation. In the process of lifting the sucker rod in the closed cleaning and repair operation, the sucker rod wellhead cleaning device is used to realize the simultaneous operation of the sucker rod lifting and cleaning operations, effectively solving the environmental pollution problems caused by the sucker rod lifting operation and the ground cleaning of the sucker rod.

[0015] The above device is a device that realizes the simultaneous operation of sucker rod lifting and cleaning during the sucker rod lifting process of well repair operation. It only solves the problem of cleaning the sucker rod when it is pulled out from the wellhead, but cannot solve the problem of cleaning the sucker rod coupling.

[0016] 2. A cleaning device for rod and pipe couplings disclosed in Chinese patent application number CN201820488530.9 and application date 2018-04-09 is suitable for cleaning the inner and outer walls of oil pipe couplings and sucker rod couplings. The device includes a cleaning box frame, a cleaning box body and a cleaning hanging basket. The cleaning box body is fixed at the lower part of the cleaning box frame, and the cleaning hanging basket is installed in the cleaning box body. The screw rod is sequentially installed with a rotary joint, a box body cover and a cleaning hanging basket from top to bottom; the reduction motor is fixed at the upper part of the cleaning box frame, and is connected to the rotary joint fixed in the support plate through the motor belt and the pulley. The box body cover covers the upper port of the cleaning box body, and the cleaning hanging basket is sealed in the cleaning box body. The lower end surface of the box body cover is equipped with a cleaning nozzle, which is connected to the water inlet pipeline and the water inlet gate; the bottom of the cleaning box body is provided with a sewage pipeline and a sewage gate connected to the sewage tank, and the reduction motor is connected to the cleaning control cabinet. The cleaning efficiency and cleaning quality are improved, replacing the original manual brushing operation mode of pipe and rod couplings.

[0017] Although the above device can replace manual cleaning of pipe and rod couplings, since multiple couplings are placed in a cleaning basket and rinsed with a nozzle, the dirt on the internal threaded part of each coupling cannot be effectively cleaned thoroughly, there are still defects and improvement is still needed. Summary of the invention

[0018] In order to solve the above problems, the utility model provides a coupling cleaning device, which can improve the cleaning efficiency and cleaning quality of the coupling, avoid all the disadvantages of manual cleaning, ensure the maintenance quality of the coupling, and protect the health of workers.

[0019] The technical solution of the utility model is: a coupling cleaning device, provided with a power distribution cabinet and an oil tank, wherein: both ends of a roller shaft are mounted on the table top of a workbench through roller shaft fixing brackets, an internal washing motor fixed with an internal washing brush is mounted at one end of the table top of the workbench through a motor moving track, and travel sensing switches are installed at both ends of the motor moving track; an external washing brush and an external washing motor connected through an external washing motor belt are fixed in an external washing fixing bracket at the other end of the table top of the workbench; a cylinder is installed on one side of the workbench at one end of the internal washing motor, the cylinder is connected to an air pump through an air pipeline, and a piston rod of the cylinder is connected to a receiving plate in an internal washing fixture Fixed connection; the internal washing fixture provided with a fixed baffle, a movable baffle and a feeding channel is located above the roller driven by the roller drive motor, and the coupling fed from the feeding channel is clamped by the receiving plate, the fixed baffle and the movable baffle, and is cleaned by the internal washing brush; the coupling after cleaning by the internal washing brush falls on the roller and is transferred to the external washing brush for cleaning; the oil pump is installed in the oil tank, and a circulation is formed between the oil tank and the workbench through the oil pump and the oil outlet pipe and the oil return pipe connected to the internal washing brush and the external washing brush; the air pump, the internal washing motor, the external washing motor, the roller drive motor, the oil pump and the stroke sensing switch are all connected to the PLC in the distribution cabinet through cables.

[0020] Preferably, the workbench is L-shaped as a whole, the internal washing motor, roller shaft and external washing motor are on an axis and installed on the long table top of the workbench, and the internal washing clamp is installed on the short table top of the workbench on one side of the internal washing motor; the air pump is installed on the lower part of the short table top and is connected to the cylinder on the short table top through an air pipeline.

[0021] Preferably, the upper end of the movable baffle is installed in a movable baffle mounting frame, and the movable baffle mounting frame is a door-shaped bracket; the movable baffle is installed outside the middle movable baffle mounting axis, and the lower ends of the frame rods on both sides of the door-shaped bracket are installed in the mounting wings on both sides of the front end of the delivery channel; the mounting wings on both sides of the front end of the delivery channel are provided with mounting frame adjustment grooves.

[0022] Preferably, the feeding channel is H-shaped as a whole with vertical plates on both sides and an inclined plate in the middle which is inclined toward the long table body of the workbench, and the inclination of the inclined plate is set between 5 degrees and 20 degrees; support plates are provided at the lower parts of both ends of the inclined plate in the middle of the feeding channel; and an oil shield is buckled on the outside of the internal washing fixture.

[0023] Preferably, the side of the movable baffle close to the cylinder is connected to a side vertical plate in the feeding channel through a tension spring and a tension spring fixing shaft.

[0024] Preferably, a receiving clamping step is provided at the front end of the receiving plate, and the width of the receiving clamping step is smaller than the sum of the thickness of the movable baffle and the radius of the coupling.

[0025] Preferably, there are two rollers and only one of them is driven by a roller drive motor, one roller driven by the roller drive motor is horizontally arranged on the long table surface of the workbench, and the other roller is inclinedly arranged on the long table surface of the workbench; the high end of the inclined roller is located on the side of the inner washing clamp, and the low end is located on the side of the outer washing brush.

[0026] Preferably, one end of the oil outlet pipe is connected to the outlet of the oil pump, and the other end is connected to the tee pipe, and the other two pipe openings of the tee pipe are connected to the vicinity of the internal wash brush and the external wash brush through the internal wash pipeline and the external wash pipeline respectively; a control valve is also installed between the tee pipe and the oil outlet pipe.

[0027] Preferably, the inner and outer brushes are both round wire brushes, the outer diameter of the inner brush is 1mm-3mm larger than the inner diameter of the coupling to be cleaned; the outer washing motor fixed in the outer washing motor fixing bracket is located above the outer washing brush; the oil in the oil tank is diesel.

[0028] Preferably, a coupling outlet is fixed at one end of the workbench to which the external washing motor fixing bracket is fixed and at the outer end of the workbench between the two rollers; the coupling outlet is a downward sloping arc plate, and a coupling storage box is placed on the ground corresponding to the coupling outlet.

[0029] Compared with the prior art, the utility model has the following significant use effects: the utility model realizes the function of individually and one by one cleaning the inner circle and outer circle of various types of pipe and rod couplings. Compared with cleaning a plurality of couplings in a cleaning hanging basket in a cleaning box, the utility model cleans the inner circle and outer circle of the couplings individually and one by one, and the cleaning is more thorough and cleaner.

[0030] The utility model applies PLC in the power distribution cabinet, and can be customized and programmed by the PLC manufacturer according to the requirements of cleaning time, the stroke of the internal washing motor, the time contact of pushing the coupling, etc., so that the utility model becomes a fully automatic cleaning device that only needs to add the coupling to be cleaned, and only one person can quickly complete the cleaning operation. It completely liberates the labor force, effectively reduces the labor intensity of the workers, greatly improves the cleaning and utilization efficiency of the coupling, and greatly reduces the number of cleaning workers.

[0031] In the utility model, the coupling is conveyed by pneumatic conveying, and the first thing to do is to clean the inside of the coupling. When the previous coupling is cleaned, the cylinder retreats, and the coupling with the cleaned inner circle falls onto the roller shaft and is conveyed to the external brush; while the coupling falls onto the roller shaft, the coupling sent into the channel slides down, the cylinder moves forward, and the coupling falls onto the receiving clamping step of the receiving plate. At this time, the movable baffle, under the action of the tension spring, rests on the receiving clamping step of the receiving plate and blocks the couplings that are queued to fall. The coupling enters the clamping space formed by the fixed baffle, the movable baffle, and the receiving plate connected to the piston rod of the cylinder, and the internal washing motor drives the rotating internal washing brush along the internal washing motor track to enter the inner cavity of the coupling to rotate and clean, over and over again. The utility model completes the task of cleaning the inner and outer circles of the couplings individually and one by one.

[0032] This device greatly improves the work efficiency of cleaning and repairing couplings. The inner cavity and outer surface of the couplings cleaned by this device are as clean as new. Damage problems in the couplings can be found after one cleaning, ensuring the inspection quality of waste couplings, preventing troubles caused by problematic couplings being lowered into the well and causing production problems, effectively improving the repair quality of the couplings.

[0033] By adjusting the installation position of the movable baffle in the device and the distance between the two roller shafts, the device can achieve the purpose of cleaning various types of rods and pipe couplings, thereby achieving multi-purpose use of one machine.

[0034] The utility model forms an oil circulation between the oil tank and the workbench through the oil pump, the oil outlet pipe and the oil return pipe, which greatly saves the oil for cleaning and the use of tools such as cotton yarn, avoids the harm to the body of workers wearing rubber gloves, ensures the health of employees of the enterprise, and has remarkable use effect and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 It is the front view of the schematic diagram of the structure of the utility model.

[0037] Figure 2 for Figure 1 Schematic diagram of the structure from top view.

[0038] Figure 3 It is a schematic diagram of the structure of the internal washing fixture and a working principle diagram of clamping and cleaning after the coupling is sent in.

[0039] Figure 4 for Figure 3 Schematic diagram of the working effect when the middle coupling is sent in and dropped.

[0040] In the figure: air pump 1, air pipeline 2, roller fixing bracket 3, internal washing motor 4, internal washing brush 5, cylinder 6; internal washing fixture 7, fixed baffle 71, movable baffle 72, receiving plate 73, feeding channel 74, movable baffle mounting bracket 75, tension spring 76, tension spring fixing shaft 77;

[0041] Roller 8, coupling 9, distribution cabinet 10, external washing brush 11, external washing motor belt 12, external washing motor 13, external washing motor fixing bracket 14, oil tank 15, oil pump 16, cable 17, oil outlet pipe 18, oil return pipe 19, roller drive motor 20, roller drive motor belt 21, coupling outlet 22, coupling storage box 23, oil shield 24, tee pipe 25, internal washing pipeline 26, external washing pipeline 27, control valve 28, stroke sensing switch 29, workbench 30. DETAILED DESCRIPTION

[0042] The accompanying drawings are for reference and illustration only and are not intended to limit the scope of protection of the present utility model. The technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0043] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0044] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] See also Figure 1 - Figure 4 , a coupling cleaning device, comprising a power distribution cabinet 10 and an oil tank 15, wherein: both ends of a roller shaft 8 are mounted on the table top of a workbench 30 through a roller shaft fixing bracket 3, an inner washing motor 4 fixed with an inner washing brush 5 is mounted at one end of the table top of the workbench 30 through a motor moving track, and a stroke sensing switch 29 is installed at both ends of the motor moving track; an outer washing brush 11 and an outer washing motor 13 connected by an outer washing motor belt 12 are fixed in an outer washing fixing bracket 14 at the other end of the table top of the workbench 30; a cylinder 6 is installed on one side of the workbench 30 at one end of the inner washing motor 4, the cylinder 6 is connected to the air pump 1 through an air pipeline 2, and the piston rod of the cylinder 6 is fixedly connected to the receiving plate 73 in the inner washing fixture 7; a fixed baffle 71 and a movable baffle are provided. The plate 72 and the internal washing fixture 7 of the feeding channel 74 are located above the roller 8 driven by the roller drive motor 20. The coupling 9 fed from the feeding channel 74 is clamped by the receiving plate 73, the fixed baffle 71 and the movable baffle 72, and is cleaned by the internal washing brush 5; the coupling 9 cleaned by the internal washing brush 5 falls on the roller 8 and is transferred to the external washing brush 11 for cleaning; the oil pump 16 is installed in the oil tank 15, and a circulation is formed between the oil tank 15 and the workbench 30 through the oil pump 16 and the oil outlet pipe 18 and the oil return pipe 19 connected to the internal washing brush 5 and the external washing brush 11; the air pump 1, the internal washing motor 4, the external washing motor 13, the roller drive motor 20, the oil pump 16 and the stroke sensing switch 29 are all connected to the PLC in the distribution cabinet 10 through the cable 17.

[0046] The utility model realizes the function of cleaning the inner and outer circles of various types of pipe and rod couplings individually and one by one. Compared with cleaning a plurality of couplings together in one cleaning box, the inner and outer circles of the couplings are cleaned individually and one by one, so the cleaning is more thorough and cleaner.

[0047] The utility model applies PLC, i.e. programmable logic controller, in the power distribution cabinet 10. It can be programmed in the PLC or customized and programmed by the PLC manufacturer according to the requirements of cleaning time, the stroke of the internal washing motor 4, the time contact of pushing the coupling 9, etc. The stroke sensing switch 29 controls the cleaning and exit stroke of the internal washing motor 4, making the utility model a fully automatic cleaning device that only needs to add a cleaning coupling.

[0048] It has been proved through experiments that it takes less than 1 minute to clean a coupling by using the utility model. After starting the machine, only one operator is required to deliver the coupling 9 into the delivery channel 74 .

[0049] The utility model is used to clean various rod and pipe couplings, which completely liberates the labor force, effectively reduces the labor intensity of workers, improves the cleaning effect and efficiency, and effectively improves the maintenance quality of the couplings.

[0050] The utility model forms an oil circulation between the oil tank 15 and the workbench 30 through the oil pump 16 and the oil outlet pipe 18 and the oil return pipe 19 connected to the inner brush 5 and the outer brush 11, which greatly saves the amount of cleaning oil, cotton yarn and other tools, avoids the harm to the body caused by workers wearing rubber gloves, and has significant use effect and application value.

[0051] Based on the above embodiment 1, the utility model also has the following embodiments:

[0052] A preferred embodiment: the workbench 30 is L-shaped as a whole, the inner washing motor 4, the roller 8 and the outer washing motor 13 are on one axis and installed on the long table surface of the workbench 30, the inner washing fixture 7 is installed on the short table surface of the workbench 30 on one side of the inner washing motor 4; the air pump 1 is installed at the lower part of the short table surface and connected to the cylinder 6 on the short table surface through the air pipeline 2. This makes the whole device neat and beautiful.

[0053] A preferred embodiment: the upper end of the movable baffle 72 is installed in the movable baffle mounting frame 75, and the movable baffle mounting frame 75 is a door-shaped bracket; the movable baffle 72 is installed outside the movable baffle mounting shaft in the middle, and the lower ends of the rack rods on both sides of the door-shaped bracket are installed in the mounting wings on both sides of the front end of the feeding channel 74; the mounting wings on both sides of the front end of the feeding channel 74 are provided with mounting frame adjustment slots. Through the mounting frame adjustment slots, the fixed position of the movable baffle 72 can be adjusted to adapt to the pushing of various types of couplings with various outer diameters.

[0054] A preferred embodiment: the feeding channel 74 is H-shaped as a whole and has vertical plates on both sides and an inclined plate in the middle that is inclined toward the long table body of the workbench 30, and the inclination of the inclined plate is set between 5 degrees and 20 degrees; support plates are provided at the lower parts of the two ends of the inclined plate in the middle of the feeding channel 74; and an oil shield 24 is buckled on the outside of the internal washing fixture 7.

[0055] A preferred embodiment: see Figure 2 , Figure 3 and Figure 4 The side of the movable baffle 72 close to the cylinder 6 is connected to a side vertical plate in the feeding channel 74 through a tension spring 76 and a tension spring fixing shaft 77.

[0056] A preferred embodiment: the front end of the receiving plate 73 is provided with a receiving clamping step, the width of which is smaller than the sum of the thickness of the movable baffle 72 and the radius of the coupling 9. Figure 3 and Figure 4 When the current coupling 9 is cleaned, the cylinder 6 retreats, and the coupling 9 with the cleaned inner circle falls on the roller 8 and is sent to the outer brush 11; while the coupling 9 falls on the roller 8, the coupling 9 sent into the channel 74 slides down, the cylinder 6 moves forward, and the coupling 9 falls on the receiving clamping step of the receiving plate 73. At this time, the movable baffle 72 rests on the receiving clamping step of the receiving plate 73 under the action of the tension spring 76 and blocks the coupling 9 that is queued to fall. The coupling 9 enters the clamping space formed by the fixed baffle 71, the movable baffle 72 and the receiving plate 73 connected to the piston rod of the cylinder 6, and the inner washing motor 4 drives the rotating inner brush 5 along the inner washing motor track to enter the inner cavity of the coupling 9 for rotation and cleaning, and the cycle repeats.

[0057] A preferred embodiment: the rollers 8 are provided with two and only one is driven by the roller drive motor 20, one roller 8 driven by the roller drive motor 20 is horizontally arranged on the long table surface of the workbench 30, and the other roller is inclinedly arranged on the long table surface of the workbench 30; the high end of the inclined roller 8 is located on the side of the inner washing fixture 7, and the low end is located on the side of the outer washing brush 11. In this way, one roller 8 is driven to rotate by the roller drive motor 20 and the roller drive motor belt 21, and the other inclined roller 8 passively follows the rotation; the distance between the two rollers 8 is determined according to the outer diameter of the coupling 9 to be cleaned, and various types of couplings can be cleaned by adjusting the distance between the two rollers 8.

[0058] A preferred embodiment: one end of the oil outlet pipe 18 is connected to the outlet of the oil pump 16, and the other end is connected to the tee pipe 25, and the other two pipe openings of the tee pipe 25 are respectively connected to the vicinity of the inner wash brush 5 and the outer wash brush 11 through the inner wash pipeline 26 and the outer wash pipeline 27; a control valve 28 is also installed between the tee pipe 25 and the oil outlet pipe 18. The oil in the inner wash pipeline 26 and the outer wash pipeline 27 is used to spray and wash the coupling 9 cleaned by the inner wash brush 5 and the coupling 9 cleaned by the outer wash brush 11.

[0059] A preferred embodiment: the inner washing brush 5 and the outer washing brush 11 are both round wire brushes, the outer diameter of the inner washing brush 5 is 1mm-3mm larger than the inner diameter of the coupling 9 to be cleaned; the outer washing motor 13 fixed in the outer washing motor fixing bracket 14 is located above the outer washing brush 11; the oil in the oil tank 15 is diesel.

[0060] A preferred embodiment: a coupling outlet 22 is fixed at one end of a workbench 30 to which the external washing motor fixing bracket 14 is fixed and at the outer end of the workbench 30 between the two rollers 8; the coupling outlet 22 is a downward sloping arc plate, and a coupling storage box 23 is placed on the ground corresponding to the coupling outlet 22 for receiving the coupling 9 that has been cleaned.

[0061] The embodiments described above are only typical embodiments, but the utility model is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and enlightenment of the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. Any modifications, equivalent replacements, improvements, etc. made within the creative spirit and creative concept of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope is not limited to the above description.

Claims

1. A coupling cleaning device, provided with a power distribution cabinet and an oil tank, characterized in that: The two ends of the roller shaft are installed on the table surface of the workbench through roller shaft fixing brackets, and the internal washing motor fixed with the internal washing brush is installed at one end of the table surface of the workbench through the motor moving track, and travel sensing switches are installed at both ends of the motor moving track; the external washing brush and the external washing motor connected by the external washing motor belt are fixed in the external washing fixing bracket at the other end of the table surface of the workbench; a cylinder is installed on one side of the workbench at one end of the internal washing motor, and the cylinder is connected to the air pump through an air pipeline, and the piston rod of the cylinder is fixedly connected to the receiving plate in the internal washing fixture; a fixed baffle, a movable baffle and a sending plate are provided. The internal washing fixture of the input channel is located above the roller driven by the roller drive motor. The coupling fed from the input channel is clamped by the receiving plate, fixed baffle and movable baffle, and cleaned by the internal washing brush; the coupling cleaned by the internal washing brush falls on the roller and is transferred to the external washing brush for cleaning; the oil pump is installed in the oil tank, and a circulation is formed between the oil tank and the workbench through the oil pump and the oil outlet pipe and return pipe connected to the internal washing brush and the external washing brush; the air pump, internal washing motor, external washing motor, roller drive motor, oil pump and stroke sensing switch are all connected to the PLC in the distribution cabinet through cables.

2. A coupling cleaning device as claimed in claim 1, characterized in that: The workbench is L-shaped as a whole, the inner washing motor, the roller shaft and the outer washing motor are on an axis and installed on the long table top of the workbench, and the inner washing fixture is installed on the short table top of the workbench on one side of the inner washing motor; the air pump is installed on the lower part of the short table top and is connected to the cylinder on the short table top through an air pipeline.

3. A coupling cleaning device as claimed in claim 1, characterized in that: The upper end of the movable baffle is installed in the movable baffle mounting frame, and the movable baffle mounting frame is a door-shaped bracket; the movable baffle is installed outside the movable baffle mounting axis in the middle, and the lower ends of the rack rods on both sides of the door-shaped bracket are installed in the mounting wings on both sides of the front end of the delivery channel; the mounting wings on both sides of the front end of the delivery channel are provided with mounting frame adjustment grooves.

4. A coupling cleaning device as claimed in claim 1 or 3, characterized in that: The feeding channel is H-shaped as a whole with vertical plates on both sides and an inclined plate in the middle that is inclined toward the long table body of the workbench, and the inclination of the inclined plate is set between 5 degrees and 20 degrees; support plates are provided at the lower parts of both ends of the inclined plate in the middle of the feeding channel; and an oil shield is buckled on the outside of the internal washing fixture.

5. A coupling cleaning device as claimed in claim 4, characterized in that: The side of the movable baffle close to the cylinder is connected with a side vertical plate in the feeding channel through a tension spring and a tension spring fixing shaft.

6. A coupling cleaning device as claimed in claim 5, characterized in that: A receiving clamping step is provided at the front end of the receiving plate, and the width of the receiving clamping step is smaller than the sum of the thickness of the movable baffle and the radius of the coupling.

7. A coupling cleaning device as claimed in claim 2, characterized in that: There are two rollers and only one of them is driven by a roller drive motor. One roller driven by the roller drive motor is horizontally arranged on the long table surface of the workbench, and the other roller is inclinedly arranged on the long table surface of the workbench; the high end of the inclined roller is located on the side of the inner washing clamp, and the low end is located on the side of the outer washing brush.

8. A coupling cleaning device as claimed in claim 1, characterized in that: One end of the oil outlet pipe is connected to the outlet of the oil pump, and the other end is connected to the tee pipe. The other two pipe openings of the tee pipe are connected to the vicinity of the internal wash brush and the external wash brush through the internal wash pipeline and the external wash pipeline respectively; a control valve is also installed between the tee pipe and the oil outlet pipe.

9. A coupling cleaning device as claimed in claim 1, characterized in that: The inner and outer brushes are both circular steel wire brushes, the outer diameter of the inner brush being larger than the inner diameter of the coupling to be cleaned by 1mm-3mm; the outer washing motor fixed in the outer washing motor fixing bracket is located above the outer washing brush; the oil in the oil tank is diesel.

10. A coupling cleaning device as claimed in claim 7, characterized in that: A coupling outlet is fixed at one end of a workbench where the external washing motor fixing bracket is fixed and at the outer end of the workbench between two rollers; the coupling outlet is a downwardly inclined arc plate, and a coupling storage box is placed on the ground corresponding to the coupling outlet.

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