CN111013934A

CN111013934A - Automatic equipment for oiling crankshaft

Info

Publication number: CN111013934A
Application number: CN201811261281.0A
Authority: CN
Inventors: 李小新; 李新文; 康笃玲
Original assignee: Xiangyang Fuda Dongkang Crankshaft Co ltd
Current assignee: Xiangyang Fuda Dongkang Crankshaft Co ltd
Priority date: 2018-10-26
Filing date: 2018-10-26
Publication date: 2020-04-17
Anticipated expiration: 2038-10-26
Also published as: CN111013934B

Abstract

An automatic crankshaft oiling device is used for automatically oiling a workpiece. The device is formed by combining a machine body, an oil storage tank, an oil circulating and filtering system, an oil atomizing system, a spraying and oiling system, a conveying system, a rotating system, a pneumatic lifting door, an oil mist processing system, a compressed air oil blowing system and an electric appliance control system; the crankshaft is atomized and oiled by an oil atomization system or directly sprayed and oiled by a spraying and oiling system, and then the antirust oil coating of the crankshaft is finished after oil draining and oil blowing. The invention has the advantages of strong compatibility of equipment, high automation degree and working efficiency, great reduction of the labor intensity of operators, thorough improvement of the production environment, avoidance of occupational diseases of the operators, effective reduction of the investment of production cost and contribution to the improvement of the oiling quality.

Description

Automatic equipment for oiling crankshaft

Technical Field

The invention relates to the technical field of automobile part manufacturing, in particular to automatic crankshaft oiling equipment.

Background

Original bent axle fat liquoring adopts the manual type, and in an inclosed space promptly, the operative employee protects with gauze mask etc. adopts the air pump to atomize the special antirust oil of bent axle earlier in the watering can, and handheld watering can sprays the bent axle on whole work or material rest again. In another method, the crankshaft is hung by an operator into a container filled with rust preventive oil by using a hook, and the crankshaft is completely soaked in the rust preventive oil for rust prevention treatment. The above oiling mode has many defects:

1. the crankshaft adopts the atomizing watering can to spout oil, puts the crankshaft on the work or material rest, adopts the watering can to spout oil to the crankshaft one by one, because the crankshaft is very heavy, can not turn, and work load is big, still often can appear the oil spout dead angle, the work or material rest stacks layer upon layer, and the middle part crankshaft is sheltered from by the crankshaft of outside, also can cause the dead angle.

2. The sanitary environment is poor. An operator is in the closed space, the atomized anti-rust oil fills the whole space, and although the operator is provided with protective articles, the operator still has great threat to the physical and psychological health of the operator. Particularly in summer, the operator is very hot and stuffy in the closed space. Although the operator does the protection work, the operator still gets full of the rust preventive oil after leaving work, which brings inconvenience to the operator.

3. The crankshaft oiling process comprises crankshaft cleaning, crankshaft placing in a material rack, forklift fork entering the oiling room, operator oiling, forklift fork exiting the oiling room, packaging and warehousing, the working procedures are complicated, and obstacles are brought to the flow process of the production line.

4. According to practical experience, the finished crankshaft must be guaranteed to be fed into the oiling chamber for oiling within four hours, otherwise the crankshaft surface risks rusting. However, sometimes the oiling operator goes off duty and the production line is still continued, so that the crankshaft cannot be oiled in time. The production connection is very troublesome, and the phenomenon of missing or delayed oiling appears to a little degree.

5. The flash point of the anti-rust oil is more than 60 ℃, an operator operates in a closed space with high oil mist density, and a forklift moves in and out, so that the risk of fire is high.

6. Still need can hold fork truck and work or material rest's great airtight space, still must be equipped with a fork truck worker.

7. The requirement on the working quality of operators is high, and once the tiger is trotter, incomplete oiling can be caused. Sometimes, the corrosion of the crankshaft is finally caused, and even the crankshaft is scrapped because of serious corrosion. Once addressed to the user, will have unpredictable adverse consequences.

8. Uneven oiling can be generated, the crankshaft is not oiled in certain places, and the crankshaft is difficult to detect on site due to the fact that the crankshaft is uneven in appearance, grey and dull in surface color and small in contrast between the oiled part and the non-oiled part.

9. Because the crankshaft needs a certain time to volatilize and dry after being oiled, the crankshaft may need a long time in the cold weather or winter, and in the process, the crankshaft may adsorb dust in the air to cause pollution and influence the cleanliness. If packaging is urgent, contamination can be more severe.

10. If the oil is applied in the container, the efficiency is too low; if the defects of dust, water vapor and the like exist in the crankshaft, cross contamination can be caused; simultaneously, can store a lot of antirust oil in the oilhole, the bent axle is because the angle problem when hanging out, and antirust oil can't all flow out, and is extravagant very big.

11. During crankshaft oiling, a lot of anti-rust oil is collected on the material frame and the partition plate, and the material frame is polluted. If the oil collection on the material rack is too much, the forklift can pollute the whole production environment in the transportation process.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide automatic crankshaft oiling equipment which can simultaneously meet the oiling requirements of crankshaft products of different specifications.

In order to realize the purpose, the invention is composed of a machine body, an oil storage tank, an oil circulating and filtering system, an oil atomizing system, a spraying and oiling system, a conveying system, a rotating system, a pneumatic lifting door, an oil mist treatment system, a compressed air oil blowing system and an electric appliance control system; the crankshaft is atomized and oiled by an oil atomization system or directly sprayed and oiled by a spraying and oiling system, and then the antirust oil coating of the crankshaft is finished after oil draining and oil blowing.

The machine body is a carbon steel section steel welding frame, a stainless steel wire drawing buckle plate structure is laid, and the bottom of the oil tank is inclined.

The oil circulation filtering system of the oil storage tank consists of a sump oil tank I, a sump oil tank II and a clean oil tank; returning liquid to the dirty oil tank I after being oiled, filtering the liquid by a filter frame in the dirty oil tank I, conveying the liquid to the dirty oil tank II, treating the liquid by an oil electric heating system in the dirty oil tank II, filtering the liquid by a filter pump connected with the dirty oil tank II, and cleaning the liquid by a fine filter connected with the filter pump, wherein clean oil is conveyed to a clean oil tank through a clean oil pipeline connected between the clean oil tank and the fine filter; the excessive oil automatically overflows from the clean oil tank to the dirty oil tank for re-filtration, so that the liquid level balance of each liquid tank is ensured; the first dirty oil tank, the second dirty oil tank and the clean oil tank are all made of stainless steel plate single layers; the oil-electric heating system consists of a stainless steel low-temperature heating pipe and a temperature control system, and the heating temperature is 25-30 ℃; a sewage discharge door and a liquid discharge valve are arranged at the bottom of the first sewage tank, and a visual liquid level instrument is arranged in the second sewage tank; a drain valve and a visual liquid level meter are arranged in the clean oil tank; handles are arranged on the covers of the dirty oil tank I, the dirty oil tank II and the clean oil tank.

The oil atomization system and the spray oiling system are composed of a nozzle, an oil injection pump and a pipeline; when spraying and oiling, the three-way valve is manually switched to a spraying and oiling system, the oil injection pump is connected with the clean oil tank, and the crankshaft is sprayed and oiled through a spraying nozzle arranged above the crankshaft; during oil atomization, the three-way valve is manually switched to an oil atomization system, the oil injection pump is connected with the clean oil tank, and the crankshaft is atomized and oiled through a spray nozzle arranged above the crankshaft; the pipelines are all made of stainless steel, and the nozzles are stainless steel atomizing nozzles.

The conveying system consists of a speed reducer, a driving transmission shaft, a driven transmission shaft, a conveying chain, a supporting plate and a bearing, wherein the speed reducer drives the supporting plate to sequentially pass through oil coating stations, oil draining stations and oil blowing stations; the supporting plate and the conveying chain are made of carbon steel, two sets of guide rollers subjected to galvanizing treatment are respectively arranged on two sides of the supporting plate, and the conveying chain is provided with a signaling pin for detecting conveying positioning.

The rotating system is arranged at an oil coating and oil blowing station, the rotating system only runs during oil coating and oil blowing and stops during conveying, and the rotating system consists of a rotating speed reducer, a chain wheel, a rotating chain, a first guide rail and a fixing plate; the crankshaft is conveyed in place, the rotating speed reducer drives the rotating chain to rotate the chain wheel on the right roller group, so that the roller group on the right side of the crankshaft is driven to rotate to realize the rotation of the crankshaft, the rotating shaft on the chain wheel is sleeved in the bearing, and the bearing seat is fixed on the supporting plate; the left side of the supporting plate is provided with a roller group, a bracket of the roller group is fixed on the supporting plate, and the roller group is movable and adjustable; the rollers are all made of natural rubber and are all installed upwards; the rotating chain is made of carbon steel.

The pneumatic lifting door is respectively arranged at the feed inlet and the discharge outlet, is automatically closed when in work and is automatically opened when in conveying; the pneumatic lifting door consists of a door body, a guide roller group, a guide rail II and a cylinder; the door body is connected with a piston rod of the air cylinder, and a guide roller group on the door body is matched with the second guide rail; the door body and the guide rail II are both made of stainless steel materials.

The oil mist treatment system is respectively arranged above the oil coating station and the oil blowing station in a set to prevent oil mist from overflowing through the feed and discharge port.

The compressed air oil blowing system adopts compressed air as an air source to enter an oil blowing station through a pipeline, blows oil to the crankshaft through a nozzle arranged above the crankshaft, adopts a pulse intermittent type mode during oil blowing, and designs a high-efficiency filter at a compressed air inlet to filter.

Compared with the prior art, the invention has the following advantages:

1. the rotating system is of a movable adjustable structure, oiling of crankshafts of various specifications can be completed only by one oiling device, the compatibility of the device is strong, and the investment of production cost can be greatly reduced. The device is suitable for all workpieces needing oiling.

2. Except that unloading in the manual work, all the other are all accomplished automatically, and degree of automation and work efficiency are high, have alleviateed operative employee's intensity of labour greatly, and the production environment obtains thoroughly improving, has avoided the emergence of operative employee's occupational disease, has also reduced a fork truck recruitment simultaneously, has avoided the unnecessary bent axle to collide with, and the demand of the turnover work or material rest of production line has obtained alleviating greatly.

3. The oiling process is the next process after the crankshaft is cleaned, all the surfaces of the crankshaft exposed outside are clean and have certain residual temperature, at the moment, the crankshaft is directly placed into the oiling machine, and the anti-rust oil can be more closely attached to the surface of the crankshaft, so that the oiling quality can be improved.

4. In order to prevent oil mist from overflowing, a pneumatic lifting door system is respectively manufactured at a feeding hole and a discharging hole of the equipment to replace a closed space, the equipment can be placed on a production line without being in the closed space, and circulation of crankshafts is reduced.

5. The rust-proof oil after being oiled flows back to the dirty oil tank through the water tank of the engine body, and all the rust-proof oil can be recycled through the reasonable design of the oiling machine, so that the problem of large consumption of the rust-proof oil is thoroughly solved, and the cleanliness of the crankshaft is ensured.

6. Due to the design of the crankshaft rotating system, the crankshaft has no oil coating dead angle.

7. The design has compressed air to blow oily system, and the bent axle is after accomplishing the fat liquoring, and the surface keeps dry, does not have secondary pollution to production site and work or material rest.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a side view of fig. 1.

Fig. 4 is a schematic view of the pneumatic lift gate of fig. 1.

Fig. 5 is a side view of fig. 4.

Fig. 6 is a side view of the oil circulation filtration system of fig. 1.

Fig. 7 is a schematic diagram of the delivery system of fig. 1.

Fig. 8 is a side view of fig. 7.

Fig. 9 is a schematic view of the rotary system of fig. 1.

In the figure: 1. a driven portion; 2. a delivery system; 3. a rotation system; 4. a pneumatic lift gate; 5. a main transmission part; 6. a spray oiling system; 7. an oil atomization system; 8. an oil mist treatment system; 9. a compressed air oil-blowing system; 10. an oil mist treatment motor; 11. a three-way valve; 12. an oil storage tank; 13. a crankshaft; 14. conveying the supporting plate; 15. a roller set; 16. a speed reducer; 17. a conveying chain; 18. an injection pump; 19. a rotary speed reducer; 20. a body; 21. a clean oil tank; 22. a first dirty oil tank; 23. a dirty oil tank II; 24. a filter pump; 25. an oil-electric heating system; 26. a fine filter; 27. cleaning an oil pipeline; 28. a filter frame; 29. a handle; 30. a high liquid level proximity switch; 31. a liquid level meter; 32. a low level proximity switch; 33. a bottom; 34. a sewage draining door; 35. a drain valve; 36. a drive transmission shaft; 37. a bearing; 38. a guide roller; 39. rotating the chain; 40. a sprocket; 41. a driven transmission shaft; 42. a door body; 43. a guide roller set; 44. a second guide rail; 45. a cylinder; 46. and a first guide rail.

Detailed Description

As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8 and fig. 9, the present invention is mainly composed of a machine body 20, an oil storage tank 12, an oil circulation filtering system, an oil atomization system 7, a spraying and oiling system 6, a conveying system 2, a rotating system 3, a pneumatic lifting door 4, an oil mist processing system 8, a compressed air oil blowing system 9 and an electric appliance control system; the crankshaft 13 is atomized and oiled by the oil atomization system 7 or directly sprayed and oiled by the spraying and oiling system 6, and then the antirust oil coating of the crankshaft 13 is finished after oil draining and oil blowing. The equipment is provided with five stations in total, the atomized oiling or spraying oiling process is adopted to meet the oiling requirement of the crankshaft 13, and the processes except manual feeding and discharging are automatically completed. The technological process includes oiling preparation, feeding, oiling, draining, blowing and blanking.

The machine body 20 is a carbon steel section steel welding frame, a stainless steel wire drawing buckle plate structure is laid, and the bottom of the oil groove is inclined. The machine body 20 is made of 2mm stainless steel materials, the upper cover is made of 1.5mm stainless steel plates so as to be convenient to maintain and overhaul, and each station partition plate is made of 1.5mm stainless steel plates.

The oil circulation filtering system of the oil storage tank 12 mainly comprises a sump oil tank I22, a sump oil tank II 23 and a clean oil tank 21; returning the return liquid to a dirty oil tank I22 after oiling, filtering the return liquid by a filter frame 28 in the dirty oil tank I22, conveying the return liquid to a dirty oil tank II 23, treating the return liquid by an oil-electric heating system 25 in the dirty oil tank II 23, filtering the return liquid by a filter pump 24 connected with the dirty oil tank II 23 by a fine filter 26 connected with the filter pump 24 to ensure that the return liquid is clean, conveying the clean oil to a clean oil tank 21 through a clean oil pipeline 27 connected between the clean oil tank 21 and the fine filter 26, sucking the clean oil by an oil injection pump 18, and then feeding the clean oil to an oil injection station for oil injection, wherein the fine filter 26 is made of stainless steel, a filter bag is filtered by needle felt, and the filtering precision is 20 mu; because the flow of the oil filtered from the fine filter 26 is larger than the flow of spraying or atomizing, the redundant oil automatically overflows from the clean oil tank 21 to the dirty oil tank I22 for re-filtering, so as to ensure the liquid level balance of each liquid tank; the first dirty oil tank 22, the second dirty oil tank 23 and the clean oil tank 21 are all made of single layers of 2mm stainless steel plates; the oil electric heating system 25 mainly comprises a stainless steel low-temperature heating pipe, a temperature control system and the like, the heating temperature is 25-30 ℃, the temperature is displayed and set by a temperature control meter on an operation panel of the electric appliance control system, the temperature is automatically controlled after being set, and the atomization effect can be more stable due to the constant oil temperature; a sewage discharge door 34 and a drain valve 35 are arranged at the bottom 33 of the first sewage tank 22, and a visible liquid level instrument 31 is arranged in the second sewage tank 23; a drain valve 35 and a visual liquid level instrument 31 are arranged in the clean oil tank 21, and a high liquid level proximity switch 30 and a low liquid level proximity switch 32 are arranged on the liquid level instrument 31; handles are arranged on the covers of the dirty oil tank I22, the dirty oil tank II 23 and the clean oil tank 21; the liquid drainage system needs to ensure that the oil in the oil tank is completely discharged without residue.

The oil atomization system 7 and the spray oiling system 6 are composed of a nozzle, an oil injection pump 18 and a pipeline; when spraying and oiling, the three-way valve 11 is manually switched to the spraying and oiling system 6, the oil injection pump 18 is connected with the clean oil tank 21, the crankshaft 13 is sprayed and oiled through a spray nozzle arranged above the crankshaft 13, and at the moment, the oil atomization system 7 does not work; during oil atomization, the three-way valve 11 is manually switched to the oil atomization system 7, the oil injection pump 18 is connected with the clean oil tank 21, and the crankshaft 13 is atomized and oiled through a spray nozzle arranged above the crankshaft 13. At this time, the spray oiling system 6 does not work; the amount of the oil coating can be manually adjusted through an adjusting valve, the oil coating needs to be adjusted when the oil coating is used for the first time, and the oil coating does not need to be adjusted after the oil coating is normally used; the pipelines are all made of stainless steel, and the nozzles are stainless steel atomizing nozzles.

The conveying system 2 comprises a speed reducer 16, a driving transmission shaft 36, a driven transmission shaft 41, a conveying chain 17, a supporting plate 14, a bearing and the like, wherein the speed reducer 16 drives the supporting plate 14 to sequentially pass through various stations of oil coating, oil draining and oil blowing; the supporting plate 14 and the conveying chain 17 are made of carbon steel, the pitch is 44.45, two sets of guide rollers 38 which are galvanized are respectively arranged on two sides of the supporting plate 14 so as to improve the conveying stability, and a signaling pin for detecting conveying positioning is arranged on the conveying chain 17. The number 1 indicates a driven portion, and the number 5 indicates a main transmission portion.

The rotating system 3 is arranged at an oil coating and blowing station, the rotating system 3 only runs when oil coating and blowing are carried out and stops when in conveying, and the rotating system 3 consists of a rotating speed reducer 19, a chain wheel 40, a rotating chain 39, a first guide rail 46 and a fixing plate; the crankshaft 13 is conveyed to the position, the rotating speed reducer 19 drives the rotating chain 39 to rotate the chain wheel 40 on the right roller set 15, so as to drive the roller set 15 on the right side of the crankshaft 13 to rotate to realize the rotation of the crankshaft 13, the rotating shaft on the chain wheel 40 is sleeved in the bearing 37, and the bearing seat is fixed on the supporting plate 14; the left side of the supporting plate 14 is provided with a roller group 15, a bracket of the roller group 15 is fixed on the supporting plate 14, and the roller group 15 is movable and adjustable; the rotating chain 39 is made of carbon steel; the roller is made of natural rubber, the roller is installed upwards, the diameter of the roller is 125mm, the width of the roller is 30mm, and the rotation speed of the roller is 2-7rpm and is variable in frequency and adjustable; the first guide rail 46 is used for supporting the rotating chain 39.

In order to prevent oil mist from overflowing the oil injection station, the pneumatic lifting door 4 is respectively arranged at the feed inlet and the discharge outlet, is automatically closed when in work and automatically opened when in conveying, and is centrally controlled by an electric appliance control system; the pneumatic lifting door 4 consists of a door body 42, a guide roller group 43, a guide rail II 44 and an air cylinder 45; the door body 42 is connected with a piston rod of the air cylinder 45, and a guide roller group 43 on the door body 42 is matched with a second guide rail 44; the door body 42 and the second guide rail 44 are both made of stainless steel materials.

A large amount of oil mist can be generated to overflow through the material inlet and the material outlet when oil is applied and oil is blown by compressed air, so that one set of oil mist treatment system 8 is respectively arranged on the oil applying station and the oil blowing station, and the oil mist treatment system 8 is driven by an oil mist treatment motor 10.

Compressed air blows oily system 9 and adopts compressed air to blow oil station as the wind regime through pipeline entering, blows oil to bent axle 13 through arranging the nozzle in bent axle 13 top, in order to save the air supply, adopts pulse intermittent type formula during the oil blowing, designs high efficiency filter at the compressed air inlet and filters for clean air supply.

The electrical appliance control system of the equipment has reliable operation of electrical elements, convenient process adjustment, independent arrangement of the electrical appliance cabinet and perfect protection function for both manual operation and automatic operation, thereby avoiding machine parts from being damaged due to misoperation and ensuring normal operation of the equipment, the electrical cabinet is provided with a three-color warning lamp, an emergency stop button is arranged at a material inlet and a material outlet,

the alarm fault is displayed in the data screen of the electric appliance cabinet, and the general alarm comprises a liquid low alarm, a liquid high alarm, a breaker tripping alarm and the like.

The working process of the equipment is as follows:

(1) atomizing and oiling:

(a) the three-way valve 11 on the reservoir tank 12 side is manually switched to the atomization oil passage.

(b) The crankshaft 13 is manually hoisted on the roller group 15 on the conveying supporting plate 14 and limited, and the position of the roller group 15 at the left end can be adjusted according to the length of the crankshaft 13.

(c) After feeding, according to the automatic starting signal, the speed reducer 16 rotates to drive the conveying chain 17 to convey the crankshaft 13 to the atomizing and oil coating level, the lifting door body 42 is closed, the oil injection pump 18 and the gas path electromagnetic valve are opened, the crankshaft 13 is driven by the rotary speed reducer 19 to rotate for 360 degrees, and the atomizing and oil coating are carried out on the crankshaft 13 by the atomizing nozzles on the upper portion and the two sides of the crankshaft.

(d) When the atomized oil coating time is up, the oil injection pump 18 and the gas circuit electromagnetic valve are closed, the speed reducer 16 rotates to drive the conveying chain 17 to convey the crankshaft 13 to the oil draining level, and the crankshaft 13 automatically drains oil.

(e) When the oil draining time is up, the speed reducer 16 rotates to drive the conveying chain 17 to convey the crankshaft 13 to the oil blowing station to stop, the oil blowing electromagnetic valve is opened, the rotating speed reducer 19 drives the crankshaft 13 to rotate for 360 degrees, and meanwhile, nozzles on the upper portion and two sides of the crankshaft 13 blow oil to the crankshaft 13.

(f) When the oil blowing time is up, the lifting door body 42 is opened, the speed reducer 16 rotates to drive the conveying chain 17 to convey the crankshaft 13 to the blanking station, and the crankshaft 13 is stopped at the blanking station level, and the flange hole and the central positioning hole are subjected to complementary blowing by a spray gun manually and then are blanked manually. And entering the next cycle.

(2) Spraying and oiling: the three-way valve 11 at the side of the oil storage tank 12 is manually switched to a spray oil way, and the crankshaft 13 is sprayed and oiled by the upper nozzles and the nozzles at the two sides during spraying and oiling. The spraying oiling process flow is the same as the atomizing oiling process.

Claims

1. The utility model provides an automation equipment of bent axle fat liquoring which characterized in that: the automatic equipment is formed by combining a machine body (20), an oil storage tank (12), an oil circulating and filtering system, an oil atomizing system (7), a spraying and oiling system (6), a conveying system (2), a rotating system (3), a pneumatic lifting door (4), an oil mist treatment system (8), a compressed air oil blowing system (9) and an electric appliance control system; the crankshaft (13) is atomized and oiled by the oil atomization system (7) or directly sprayed and oiled by the spraying and oiling system (6), and then the antirust oil coating of the crankshaft (13) is finished after oil draining and oil blowing.

2. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the machine body (20) is a carbon steel section steel welding frame, a stainless steel wire drawing buckle plate structure is laid, and the bottom of the oil tank inclines.

3. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the oil circulation filtering system of the oil storage tank (12) consists of a sump oil tank I (22), a sump oil tank II (23) and an oil purification tank (21); returning liquid to a first dirty oil tank (22) after oil is applied, filtering the liquid by a filter frame (28) in the first dirty oil tank (22), conveying the liquid to a second dirty oil tank (23), treating the liquid by an oil electric heating system (25) in the second dirty oil tank (23), filtering the liquid by a fine filter (26) connected with the filter pump (24) through a filter pump (24) connected with the second dirty oil tank (23) to clean the returned liquid, and conveying the clean oil to a clean oil tank (21) through a clean oil pipeline (27) connected between the clean oil tank (21) and the fine filter (26); the excessive oil automatically overflows from the clean oil tank (21) to the dirty oil tank I (22) for re-filtration, so that the liquid level balance of each liquid tank is ensured; the first dirty oil tank (22), the second dirty oil tank (23) and the clean oil tank (21) are all made of stainless steel plate single layers; the oil-electric heating system (25) consists of a stainless steel low-temperature heating pipe and a temperature control system, and the heating temperature is 25-30 ℃; a sewage discharge door (34) and a drain valve (35) are arranged at the bottom (33) of the first dirty oil tank (22), and a visible liquid level meter (31) is arranged in the second dirty oil tank (23); a drain valve (35) and a visual liquid level meter (31) are arranged in the clean oil tank (21); handles (29) are arranged on the covers of the first dirty oil tank (22), the second dirty oil tank (23) and the clean oil tank (21).

4. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the oil atomization system (7) and the spray oiling system (6) are composed of a nozzle, an oil injection pump (18) and a pipeline; when spraying and oiling, the three-way valve (11) is manually switched to the spraying and oiling system (6), the oil injection pump (18) is connected with the clean oil tank (21), and the crankshaft (13) is sprayed and oiled through a spraying nozzle arranged above the crankshaft (13); during oil atomization, the three-way valve (11) is manually switched to the oil atomization system (7), the oil injection pump (18) is connected with the clean oil tank (21), and the crankshaft (13) is atomized and oiled through the spray nozzle arranged above the crankshaft (13); the pipelines are all made of stainless steel, and the nozzles are stainless steel atomizing nozzles.

5. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the conveying system (2) consists of a speed reducer (16), a driving transmission shaft (36), a driven transmission shaft (41), a conveying chain (17), a supporting plate (14) and a bearing, wherein the speed reducer (16) drives the supporting plate (14) to sequentially pass through oil coating stations, oil draining stations and oil blowing stations; the supporting plate (14) and the conveying chain (17) are made of carbon steel, two sets of guide rollers (38) which are galvanized are respectively arranged on two sides of the supporting plate (14), and the conveying chain (17) is provided with a signaling pin for detecting conveying positioning.

6. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the rotating system (3) is arranged at an oil coating and oil blowing station, the rotating system (3) only runs when oil coating and oil blowing are carried out and stops when oil is conveyed, and the rotating system (3) consists of a rotating speed reducer (19), a chain wheel (40), a rotating chain (39), a first guide rail (46) and a fixing plate; the crankshaft (13) is conveyed to the position, a rotating speed reducer (19) drives a rotating chain (39) to rotate a chain wheel (40) on a roller set (15) on the right side, so that the roller set (15) on the right side of the crankshaft (13) is driven to rotate to realize the rotation of the crankshaft (13), a rotating shaft on the chain wheel (40) is sleeved in a bearing (37), and a bearing seat is fixed on a supporting plate (14); a roller group (15) is arranged on the left side of the supporting plate (14), a bracket of the roller group (15) is fixed on the supporting plate (14), and the roller group (15) is movable and adjustable; the rollers are all made of natural rubber and are all installed upwards; the rotating chain (39) is made of carbon steel.

7. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the pneumatic lifting door (4) is respectively arranged at the feed inlet and the discharge outlet, is automatically closed when in work and is automatically opened when in conveying; the pneumatic lifting door (4) consists of a door body (42), a guide roller group (43), a guide rail II (44) and an air cylinder (45); the door body (42) is connected with a piston rod of the air cylinder (45), and a guide roller group (43) on the door body (42) is matched with the second guide rail (44); the door body (42) and the second guide rail (44) are both made of stainless steel materials.

8. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: the oil mist treatment system (8) is respectively arranged above the oil coating station and the oil blowing station in a set to prevent oil mist from overflowing through the material inlet and the material outlet.

9. An automated apparatus for oiling a crankshaft as defined in claim 1, wherein: compressed air blows oily system (9) and adopts compressed air to get into through the pipeline as the wind regime and blow oily station, blows oil through arranging nozzle above bent axle (13) to bent axle (13), adopts the pulse intermittent type formula during the oil blowing, filters at compressed air inlet design high efficiency filter.