Intelligent electric chain crane based on self-lubrication and control system

Abstract

The invention relates to the field of cranes, and provides a self-lubricating-based intelligent electric chain crane and control system.The self-lubricating-based intelligent electric chain crane comprises a machine body, a driving assembly and a chain wheel assembly which are connected, a chain is connected to the chain wheel assembly, a first bevel gear is fixedly connected to the chain wheel assembly, and a driving rod is rotationally connected to the inner wall of a machine cavity; an oil guide box, an oil storage box and a processing cylinder are fixedly connected to the inner wall of the machine cavity, the driven rod is rotationally connected to the oil guide box, a first one-way valve and a second one-way valve are connected to the inner wall of the oil guide box, and the oil storage box is fixedly connected with the oil guide box. The inner wall of the machine cavity is rotatably connected with a swing part through an automatic reset rotating shaft, the swing part is in rolling connection with a ball, the top wall of the treatment cylinder is slidably connected with two oil guide blocks, the oil guide blocks are connected with the inner wall of the machine cavity through elastic parts, and inclined plane parts are fixedly connected to the oil guide blocks. According to the chain self-lubricating device, the automatic avoiding function between the chain and a component is achieved, and meanwhile the chain self-lubricating function is achieved.

Description

Technical Field

[0001] This invention relates to the field of crane technology, specifically to a self-lubricating intelligent electric chain crane and its control system. Background Technology

[0002] Currently, chain cranes are commonly used lifting equipment in industrial production and engineering construction. They possess advantages such as compact structure, high load-bearing capacity, and ease of operation, and are widely used in warehouses, factories, and construction sites. During the operation of a chain crane, the chain, as a crucial component for bearing and transmitting power, directly affects the overall performance and service life of the crane due to its operational stability and durability. The chain endures significant friction and load during operation; without effective lubrication, it is highly susceptible to wear, corrosion, and a shortened service life. Therefore, regular lubrication and maintenance of the chain is a necessary measure to ensure the long-term stable operation of the crane.

[0003] The existing chain cranes mainly rely on manual application of lubricating oil for maintenance. This method has obvious shortcomings, namely, it needs to be operated when the equipment is stopped, and in some cases, the chain needs to be partially disassembled before the lubricating oil can be applied, making the operation process cumbersome. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention aims to provide a self-lubricating intelligent electric chain crane and its control system. To solve these problems, the invention employs the following technical solution: A self-lubricating intelligent electric chain crane includes a body, a drive assembly connected to a cavity on the body, a sprocket assembly connected to the drive assembly, a chain connected to the sprocket assembly, a bevel gear fixedly mounted on the sprocket assembly, a drive rod rotatably connected to the inner wall of the cavity, a bevel gear two meshing with the bevel gear one fixedly mounted on the drive rod, an electromagnetic clutch connected to a driven rod, an oil guide box, an oil reservoir, and a processing cylinder fixedly mounted to the inner wall of the cavity, the chain passing through the processing cylinder, the driven rod rotatably connected to the oil guide box, and a piston slidably connected to the inner wall of the oil guide box. The universal joint has a movable bar, which is rotatably connected to the bent part on the driven rod. The oil guide box has an inlet and an outlet. One-way valve one and one-way valve two are connected to the inner wall of the oil guide box. The oil storage box and the oil guide box are fixedly connected. The oil storage box is filled with lubricating oil. The liquid guide tube on the oil guide box extends into the lubricating oil in the oil storage box. The inner wall of the machine cavity is rotatably connected to a swing member through an automatic reset shaft. Ball bearings are rolled on the swing member. Two oil guide blocks are slidably connected to the top wall of the processing cylinder. The oil guide blocks are connected to the inner wall of the machine cavity through an elastic member. An inclined member is fixedly connected to the oil guide block.

[0005] Preferably, the inner wall of the machine cavity is rotatably connected to a first receiving roller and a second receiving roller. The first receiving roller is fixedly connected to the driven rod. One end of the soft wiping strip is wound around the first receiving roller, and the other end of the soft wiping strip is wound around the second receiving roller. The soft wiping strip passes through the processing cylinder and has an opening. The chain passes through the opening.

[0006] Preferably, the electromagnetic clutch includes a fixed part and a movable part, the movable part is slidably connected to the fixed part, the fixed part is fixedly connected to the driven rod, the movable part is provided with a connecting groove, the inner wall of the connecting groove is provided with a keyway, and a semi-circular key is connected to the driving rod.

[0007] Preferably, the movable part is provided with an extension, the top wall of the oil guide box is fixedly connected to an airbag two, the bottom wall of the extension abuts against the airbag two, the inner wall of the processing cylinder is fixedly connected to an airbag one, the airbag one passes through the opening, and the airbag one is connected to the airbag two through a conduit.

[0008] Preferably, the ornament has a forked portion, and two cylindrical parts are fixedly connected to the forked portion.

[0009] Preferably, the extension is annular.

[0010] Preferably, a latch-type hook is fixed to the chain.

[0011] Preferably, an upper hook is fixedly connected to the machine body.

[0012] Preferably, the outer wall of the machine body is coated with anti-corrosion paint.

[0013] A self-lubricating intelligent electric chain crane control system, based on the aforementioned self-lubricating intelligent electric chain crane, includes a controller connected to the crane body, and the controller is equipped with a main control module, a communication module, a power supply module, and a rectifier module.

[0014] A self-lubricating intelligent electric chain crane control system, based on the aforementioned self-lubricating intelligent electric chain crane, includes a controller 3 connected to the machine body 1, and the controller 3 is equipped with a main control module, a communication module, a power supply module and a rectifier module.

[0015] The present invention has the following beneficial effects: It enables automatic avoidance between the chain and components. In the initial state, the oil guide block separates from the chain through the action of the elastic element to avoid unnecessary friction and ensure that the chain runs freely in non-maintenance conditions. The electromagnetic clutch controls the engagement and disengagement of the driving rod and the driven rod, enabling rust removal and lubrication functions to be activated when needed, and automatically disengaging when not needed, ensuring that the normal operation of the chain and maintenance work do not interfere with each other. This design improves the intelligence and reliability of the device. To achieve chain self-lubrication, the system utilizes a combination of an oil reservoir, an oil guide box, a piston, one-way valve one, one-way valve two, and an oil guide block. During chain operation, the piston drives the oil to automatically and evenly spray lubricating oil onto the chain surface. As the piston reciprocates, it draws lubricating oil into the oil guide box and pushes it into the oil guide block, which then evenly spreads it onto the chain surface. This effectively reduces friction, improves lubrication, avoids frequent manual lubrication, and enhances maintenance efficiency. Attached Figure Description

[0016] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of a self-lubricating intelligent electric chain crane according to the present invention; Figure 2 This is a front view of a self-lubricating intelligent electric chain crane according to the present invention; Figure 3 This is a side view of a self-lubricating intelligent electric chain crane according to the present invention. Figure 4 This is the present invention. Figure 2 Schematic diagram of the internal structure of the medium-sized body; Figure 5 This is the present invention. Figure 4 Enlarged view of the internal parts of the machine body; Figure 6 This is a schematic diagram of the structure of the processing cylinder and the ornament in this invention; Figure 7 This is the present invention. Figure 6 Exploded views of the central processing cylinder and the decorative pieces; Figure 8 This is the present invention. Figure 5 Schematic diagram of the internal structure of the central oil guide box; Figure 9 This is the present invention. Figure 5 A schematic diagram of the structure of the top wall of the moving part of the electromagnetic clutch and the lower end of the drive rod; Figure 10 This is the present invention. Figure 5 Top view of the central processing cylinder; Figure 11 This is a schematic diagram of the structure of the soft rubbing strip in this invention; Figure 12 This is a schematic diagram of the electrical board structure in this invention; Figure 13 This is a schematic diagram of the motor structure in this invention; Figure 14 This is the present invention. Figure 5Top view of the left wall of the central oil guide box and the oil guide block.

[0018] Reference numerals: 1. Body; 2. Chain; 3. Controller; 4. Machine cavity; 5. Sprocket assembly; 6. Bevel gear one; 7. Bevel gear two; 8. Driving rod; 9. Electromagnetic clutch; 10. Driven rod; 11. Moving bar; 12. Piston; 13. Oil guide box; 14. One-way valve one; 15. One-way valve two; 16. Oil reservoir; 17. Receiving roller one; 18. Receiving roller two; 19. Soft rubbing strip; 21. Airbag one; 22. Guide tube; 23. Airbag two; 24. Ornament; 25. Ball bearing; 26. Oil guide block; 27. Elastic element; 28. Inclined surface element; 29. ​​Processing cylinder; 30. Opening. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] like Figures 1-14As shown, a self-lubricating intelligent electric chain crane includes a body 1. A drive assembly is connected to a cavity 4 on the body 1. The drive assembly is connected to a sprocket assembly 5. A chain 2 is connected to the sprocket assembly 5. A bevel gear 6 is fixedly connected to the sprocket assembly 5. A drive rod 8 is rotatably connected to the inner wall of the cavity 4. A bevel gear 7 that meshes with the bevel gear 6 is fixedly connected to the drive rod 8. An electromagnetic clutch 9 is connected to a driven rod 10. An oil guide box 13, an oil storage box 16, and a processing cylinder 29 are fixedly connected to the inner wall of the cavity 4. The chain 2 passes through the processing cylinder 29. The driven rod 10 is rotatably connected to the oil guide box 13. A piston 12 is slidably connected to the inner wall of the oil guide box 13. The piston 12 has a universal joint. A movable bar 11 is connected to the bent part on the driven rod 10. The oil guide box 13 has an inlet and an outlet. One-way valve 14 and one-way valve 15 are connected to the inner wall of the oil guide box 13. The oil storage box 16 is fixed to the oil guide box 13. The oil storage box 16 is filled with lubricating oil. The liquid guide tube on the oil guide box 13 extends into the lubricating oil in the oil storage box 16. The inner wall of the machine cavity 4 is rotatably connected to the swing member 24 through the automatic reset shaft. The swing member 24 is connected to the ball bearing 25. Two oil guide blocks 26 are slidably connected to the top wall of the processing cylinder 29. The oil guide blocks 26 are connected to the inner wall of the machine cavity 4 through the elastic member 27. The inclined member 28 is fixed to the oil guide block 26.

[0023] The drive assembly includes a motor and a reduction gear assembly; the crane has the following specifications: rated lifting capacity: 1 Ton; rated lifting speed: 8.4 m / min; factory test load: 12.5 kN; working class: M4; motor model: YHH51-4-1.6; motor power: 1.6 kW; motor speed: 1720 r / min; rated voltage: 440 V; rated current: 3.5 A; lifting transmission ratio: 42.85; minimum hook spacing: 500 mm; lifting height: 6 m.

[0024] The crane is equipped with a circuit board, which includes an AC contactor CJX4-09, a transformer, a terminal block PV2-10L, a rectifier (bridge rectifier) ​​AC220 / DC99V, and a micro switch 7-B.

[0025] The crane can be used in various scenarios, such as cargo lifting in harbors, factories, and commercial areas.

[0026] According to an optional embodiment of the present invention, a first receiving roller 17 and a second receiving roller 18 are rotatably connected to the inner wall of the machine cavity 4. The first receiving roller 17 is fixedly connected to the driven rod 10. One end of the soft wiping strip 19 is wound around the first receiving roller 17, and the other end of the soft wiping strip 19 is wound around the second receiving roller 18. The soft wiping strip 19 passes through the processing cylinder 29, and an opening 30 is provided on the soft wiping strip 19. The chain 2 passes through the opening 30.

[0027] The inner wall of opening 30 is used for cleaning and rust removal of chain 2.

[0028] According to an optional embodiment of the present invention, the electromagnetic clutch 9 includes a fixed part and a movable part, the movable part being slidably connected to the fixed part, the fixed part being fixedly connected to the driven rod 10, the movable part having a connecting groove, the inner wall of the connecting groove having a keyway, and the driving rod 8 being connected to a semi-circular key.

[0029] The electromagnetic clutch 9 is implemented using existing technology. The fixed part of the electromagnetic clutch 9 is equipped with an electromagnet and a return spring, and the movable part of the electromagnetic clutch 9 is equipped with a permanent magnet. The above components and connection methods are known from existing technology and will not be described here. The semi-circular key and keyway are compatible.

[0030] According to an optional embodiment of the present invention, the movable part is provided with an extension, the top wall of the oil guide box 13 is fixedly connected to an airbag 23, the bottom wall of the extension abuts against the airbag 23, the inner wall of the processing cylinder 29 is fixedly connected to an airbag 21, the airbag 21 passes through the opening 30, and the airbag 21 is connected to the airbag 23 through a conduit 22.

[0031] The extension is used to press the second airbag 23 in order to control the size of the first airbag 21, thereby controlling the degree to which the first airbag 21 expands the opening 30.

[0032] In an optional embodiment of the present invention, the pendant 24 is provided with a forked portion, on which two cylindrical members are fixedly connected. The forked portion facilitates the simultaneous pushing of the two inclined members 28, and the two cylindrical members can reduce the frictional force when pushing the inclined members 28.

[0033] According to an optional embodiment of the present invention, the extension is annular, and the annular extension allows the airbag 23 to be pressed down at any angle the movable part stops at.

[0034] According to an optional embodiment of the present invention, a latch-type hook is fixedly connected to the chain 2, which has an automatic closing function to prevent the goods from accidentally slipping out during hoisting and to improve safety.

[0035] According to an optional embodiment of the present invention, an upper hook is fixedly connected to the body 1 for connecting the body 1 to a fixed support point (such as an I-beam trolley, a hanger, or a bracket) so that the body 1 can be stably suspended in the air.

[0036] According to an optional embodiment of the present invention, the outer wall of the body 1 is coated with anti-corrosion paint, which effectively blocks corrosive media such as water vapor, acid and alkali gases, and salt spray in the air, extends the service life of the body 1, and also improves the appearance.

[0037] A self-lubricating intelligent electric chain crane control system, based on the aforementioned self-lubricating intelligent electric chain crane, includes a controller 3 connected to the machine body 1, and the controller 3 is equipped with a main control module, a communication module, a power supply module and a rectifier module.

[0038] The main control module is used for centralized management and logical operations of the entire crane operation, receiving external input signals and issuing control commands to achieve coordinated control of key components such as drive components, sprocket components 5 and electromagnetic clutches 9, thereby ensuring the efficient operation of the crane in different working modes.

[0039] The communication module is used to realize data interaction between the controller 3 and external devices. It can transmit the crane's operating status and fault information to the external terminal in real time, and at the same time receive remote control signals to realize remote operation and intelligent management, thereby improving the system's monitorability and maintainability.

[0040] The power module is used to provide a stable power supply for the controller 3 and its internal functional units. It can regulate and distribute the external input power to ensure that the main control module, communication module and rectifier module can operate reliably under different operating conditions.

[0041] The rectifier module is used to convert the input AC power into DC power, providing appropriate power support for the motor drive and control circuits, ensuring the dynamic stability of the crane during lifting or lowering, and avoiding control failures caused by current fluctuations.

[0042] In the crane, the controller 3 is connected to the body 1 through a waterproof connector made of plastic. The body 1 is equipped with a cable wire hook, preferably made of carbon spring steel wire. The outer wall of the body 1 is installed with a cross-slot pan head screw M6. The chain storage cylinder on the body 1 is made of plastic.

[0043] Implementation process: In the initial state, the active lever 8 and the moving part of the electromagnetic clutch 9 are disengaged, the ball bearing 25 abuts against the top wall of the moving part, the two oil guide blocks 26 are separated and do not abut against the chain 2, preventing the oil guide blocks 26 from interfering with the movement of the chain 2 and increasing the wear rate of the chain 2. The second airbag 23 is compressed by the extension of the electromagnetic clutch 9. Some of the gas in the second airbag 23 enters the first airbag 21 through the conduit 22, causing the first airbag 21 to inflate. The first airbag 21 opens the opening 30, so that the inner wall of the opening 30 does not abut against the chain 2, preventing the soft friction strip 19 from interfering with the movement of the chain 2 and increasing the wear rate of the chain 2.

[0044] When rust removal and lubrication of chain 2 are required, the sprocket assembly 5 is rotated to store chain 2. The sprocket assembly 5 drives the bevel gear 1 6, bevel gear 2 7, and drive rod 8 to rotate, and chain 2 moves upward. The electromagnet in the control fixed part generates magnetic repulsion, causing the movable part with permanent magnet to move upward. The top wall of the movable part pushes the ball bearing 25, causing the ornament 24 to rotate counterclockwise around the automatic reset shaft. The two cylindrical parts on the ornament 24 push the inclined surfaces of the two inclined parts 28, causing the two inclined parts 28 to overcome the elastic force of the elastic part 27 and approach each other until they abut. The two inclined parts 28 abut against chain 2, which facilitates the subsequent oiling operation.

[0045] After the extension moves upward and disengages from airbag 23, airbag 23 inflates. Some of the gas in airbag 1 21 flows back into airbag 23 through conduit 22. Airbag 1 21 shrinks, thus reducing the degree of expansion of opening 30, so that the inner wall of opening 30 abuts against chain 2, and the movable part abuts against the lower end of drive rod 8. When the keyway aligns with the semi-circular key, the movable part moves upward, causing drive rod 8 to insert into connecting groove, and semi-circular key to insert into keyway. This causes drive rod 8 to drive electromagnetic clutch 9, driven rod 10, and receiving roller 17 to rotate. Receiving roller 17 receives soft rubbing strip 19, and receiving roller 2 18 releases soft rubbing strip 19, causing soft rubbing strip 19 to move. The inner wall of opening 30 moves while cleaning the surface of chain 2. During rust removal, the driven rod 10 rotates, continuously driving the piston 12 to move back and forth via the movable bar 11. When the piston 12 moves to the right, the second check valve 15 opens, connecting the inlet, while the first check valve 14 closes, closing the outlet. The guide pipe draws lubricating oil from the oil reservoir 16 into the guide box 13. When the piston 12 moves to the left, the second check valve 15 closes, blocking the inlet, while the first check valve 14 opens, opening the outlet. The piston 12 pushes the lubricating oil out of the guide box 13, spraying it into the two guide blocks 26. The guide blocks 26 absorb the lubricating oil and evenly coat it onto the chain 2. The presence of the guide blocks 26 prevents lubricating oil from being sprayed elsewhere, thus avoiding waste and contamination. The guide box 13 can have two spray nozzles, both of which abut against the guide blocks 26, further preventing lubricating oil from being sprayed elsewhere.

[0046] After rust removal and oiling are completed, the control electromagnet is turned off, and the moving part moves downward and resets under the action of the return spring. The electromagnetic clutch 9 disengages from the drive rod 8, and the driven rod 10 and the receiving roller 17 gradually stop rotating. The oil guide box 13 stops spraying lubricating oil, and the receiving roller 17 stops winding the soft rubbing strip 19. The extension on the electromagnetic clutch 9 recompresses the airbag 23, and the airbag 21 expands to increase the degree of opening of the opening 30. The inner wall of the opening 30 is released from its contact with the chain 2. The swing piece 24 reverses and resets under the action of the automatic reset shaft. The two oil guide blocks 26 move away from each other and release their contact under the action of the elastic element 27. The two oil guide blocks 26 are released from their contact with the chain 2, thereby preventing the components from interfering with the movement of the chain 2 and increasing the wear rate of the chain 2.

[0047] This invention achieves the following beneficial effects through the control of the electromagnetic clutch 9: To achieve automatic avoidance between chain 2 and components, in the initial state, the cooperation of airbag 1 21 and airbag 23 maintains a gap between the inner wall of opening 30 and chain 2, preventing the soft rubbing strip 19 from increasing the wear of chain 2 when not in operation; the oil guide block 26 is separated from chain 2 by the action of elastic element 27, which also avoids unnecessary friction and ensures that chain 2 can run freely in non-maintenance conditions; The electromagnetic clutch 9 controls the engagement and disengagement of the driving rod 8 and the driven rod 10, enabling it to activate rust removal and lubrication functions when needed and automatically disconnect when not needed, ensuring that the normal operation and maintenance of the chain 2 do not interfere with each other. This design enhances the intelligence and reliability of the device. To achieve the self-lubricating function of chain 2, through the cooperation of oil reservoir 16, oil guide box 13, piston 12, one-way valve 14, one-way valve 15 and oil guide block 26, the lubricating oil can be automatically and evenly sprayed onto the surface of chain 2 by the piston 12 during the operation of chain 2. When piston 12 reciprocates, it draws lubricating oil into oil guide box 13 and pushes it into oil guide block 26, and then the oil guide block 26 evenly spreads it on the surface of chain 2, effectively reducing friction, improving lubrication effect, avoiding frequent manual oiling, and improving maintenance efficiency. The automatic rust removal and cleaning function of chain 2 is achieved through the combination of collection roller 17, collection roller 2 18 and soft wiping strip 19. During operation, chain 2 passes through opening 30, and soft wiping strip 19 can continuously clean and remove rust from the surface of chain 2. Collection roller 17 and collection roller 2 18 take in and release soft wiping strip 19, so that soft wiping strip 19 moves continuously, ensuring that the cleaning surface always keeps a fresh part in contact with chain 2, effectively removing rust and dirt, and extending the service life of chain 2. The chain 2 is precisely oiled and the lubricant is saved. The lubricant is applied directly to the surface of the chain 2 through the oil guide block 26, and will not splash onto other parts of the machine cavity 4, thus avoiding contamination and waste. The inclined part 28 helps the oil guide block 26 to fit the chain 2 evenly, so that the lubricant is distributed more evenly, improving the lubrication effect and saving oil. The electromagnetic clutch is intelligently controlled, and the swing element 24 assists the movement of the oil guide block. The swing element 24 drives the ball 25 and the inclined surface 28, so that the two oil guide blocks 26 approach the chain 2 for oiling when needed, and then separate under the action of the elastic element 27 after completion. This design ensures that the contact between the oil guide block 26 and the chain 2 only occurs when needed, reducing friction loss and extending service life.

[0048] The components, modules, mechanisms, and devices in this invention that are not described in detail are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A self-lubricating intelligent electric chain crane, comprising a body, a drive assembly connected within a cavity on the body, the drive assembly being connected to a sprocket assembly, and a chain connected to the sprocket assembly, characterized in that, A bevel gear 1 is fixedly connected to the sprocket assembly. A drive rod is rotatably connected to the inner wall of the machine cavity. A bevel gear 2, which meshes with bevel gear 1, is fixedly connected to the drive rod. An electromagnetic clutch is connected to a driven rod. An oil guide box, an oil reservoir, and a processing cylinder are fixedly connected to the inner wall of the machine cavity. The chain passes through the processing cylinder. The driven rod is rotatably connected to the oil guide box. A piston is slidably connected to the inner wall of the oil guide box. A movable bar is universally connected to the piston. The movable bar is rotatably connected to the bent part on the driven rod. The oil guide box has an inlet and an outlet. One-way valve 1 and one-way valve 2 are connected to the inner wall of the oil guide box. The oil reservoir and the oil guide box are fixedly connected. The oil reservoir is filled with lubricating oil. A guide tube on the oil guide box extends into the lubricating oil in the oil reservoir. A swing element is rotatably connected to the inner wall of the machine cavity via an automatic reset shaft. Ball bearings are rolled on the swing element. Two oil guide blocks are slidably connected to the top wall of the processing cylinder. The oil guide blocks are connected to the inner wall of the machine cavity via an elastic element. An inclined element is fixedly connected to the oil guide blocks.

2. The self-lubricating intelligent electric chain crane according to claim 1, characterized in that, The inner wall of the machine cavity is rotatably connected to a first collection roller and a second collection roller. The first collection roller is fixedly connected to the driven rod. One end of the soft wiping strip is wrapped around the first collection roller, and the other end of the soft wiping strip is wrapped around the second collection roller. The soft wiping strip passes through the processing cylinder and has an opening. The chain passes through the opening.

3. A self-lubricating intelligent electric chain crane according to claim 2, characterized in that, The electromagnetic clutch includes a fixed part and a movable part. The movable part is slidably connected to the fixed part. The fixed part is fixedly connected to the driven rod. A connecting groove is provided on the movable part. A keyway is provided on the inner wall of the connecting groove. A semi-circular key is connected to the driving rod.

4. A self-lubricating intelligent electric chain crane according to claim 3, characterized in that, The movable part is provided with an extension part, and an airbag two is fixedly connected to the top wall of the oil guide box. The bottom wall of the extension part abuts against the airbag two. An airbag one is fixedly connected to the inner wall of the processing cylinder. The airbag one passes through the opening and is connected to the airbag two through a conduit.

5. A self-lubricating intelligent electric chain crane according to claim 4, characterized in that, The ornament has a forked section, on which two cylindrical parts are fixedly connected.

6. A self-lubricating intelligent electric chain crane according to claim 5, characterized in that, The extension is ring-shaped.

7. A self-lubricating intelligent electric chain crane according to claim 6, characterized in that, A latch-type hook is fixed to the chain.

8. A self-lubricating intelligent electric chain crane according to claim 7, characterized in that, The machine body is fixedly connected to an upper hook.

9. A self-lubricating intelligent electric chain crane according to claim 8, characterized in that, The outer wall of the machine body is coated with anti-corrosion paint.

10. A self-lubricating intelligent electric chain crane control system, characterized in that, A self-lubricating intelligent electric chain crane according to any one of claims 1-9 includes a controller connected to the machine body, and the controller is provided with a main control module, a communication module, a power supply module and a rectifier module.

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