Intelligent self-lubricating lead screw elevator

Abstract

The invention relates to the technical field of mechanical transmission, in particular to an intelligent self-lubricating lead screw lifter which comprises a bottom support circular plate and three internal thread gears evenly and rotatably connected to the bottom support circular plate, lifting lead screws are connected into the three internal thread gears through threads, a bearing vertical cavity is fixedly connected to the bottom support circular plate, and a bearing is arranged in the bearing vertical cavity. A transmission main gear is rotationally connected to the bearing vertical cavity and is in meshing transmission connection with the three internal thread gears, three cavity supporting legs are evenly and fixedly connected to the lower portion of the bottom supporting circular plate, the lower portions of the three lifting lead screws are located in the three cavity supporting legs correspondingly, and a liquid drainage component is fixedly connected to the bottom supporting circular plate. A transmission worm gear is coaxially and fixedly connected to the transmission main gear, a bearing supporting seat is fixedly connected to the bottom support circular plate, a transmission worm is rotationally connected to the bearing supporting seat, and the transmission worm is in meshing transmission connection with the transmission worm gear. The lead screw elevator has the advantages of being capable of achieving automatic lubrication, improving the lubrication efficiency, prolonging the service life and reducing the maintenance cost.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical transmission, and in particular to an intelligent self-lubricating screw lifter. Background Art

[0002] The screw lift is a mechanical device that converts rotational motion into linear motion. It is widely used in various industrial fields, such as machine tools, automated production lines, and logistics transportation. Traditional screw lifts usually require manual regular addition of lubricating oil to reduce the friction between the screw and the nut and ensure its normal operation. However, manual lubrication has the following disadvantages: manual lubrication relies on the experience and responsibility of the operator, and it is easy to have untimely or insufficient lubrication, resulting in increased wear of various parts and shortened service life; manual lubrication is difficult to ensure that the lubricating oil is evenly distributed on the contact surface of the screw and the nut, and it is easy to have local poor lubrication, affecting the transmission efficiency and service life; manual lubrication requires regular downtime for maintenance, which increases the equipment maintenance cost and time cost. To this end, we propose an intelligent self-lubricating screw lift. Summary of the invention

[0003] The technical problem to be solved by the present application is that the screw lift can realize automatic lubrication, improve lubrication efficiency, extend service life and reduce maintenance costs.

[0004] In order to solve the above technical problems, an embodiment of the present application provides an intelligent self-lubricating screw lift, including a bottom support circular plate and three internally threaded gears that are evenly and rotatably connected to the bottom support circular plate, the three internally threaded gears are all connected to lifting screws through threads, a bearing vertical cavity is fixedly connected to the bottom support circular plate, a transmission main gear is rotatably connected to the bearing vertical cavity, the transmission main gear is meshed and connected to the three internally threaded gears, three cavity legs are evenly and fixedly connected below the bottom support circular plate, the three lifting screws are respectively located in the three cavity legs, and a drainage component is fixedly connected to the bottom support circular plate.

[0005] In some embodiments, a transmission worm gear is coaxially fixedly connected to the transmission main gear.

[0006] In some embodiments, the bottom support circular plate is fixedly connected to a bearing support seat, a transmission worm is rotatably connected to the bearing support seat, the transmission worm is meshingly connected to the transmission worm wheel, a reduction motor is fixedly connected to the bearing support seat, and the output shaft of the reduction motor is fixedly connected to the transmission worm.

[0007] In some embodiments, the drainage component includes a storage cavity and three drainage transverse tubes I fixedly connected to the storage cavity and connected to each other. Two drainage ports I are provided on each drainage transverse tube I. The drainage ports I at the outer ends of the three drainage transverse tubes I are respectively located above the meshing points of the three internally threaded gears and the three lifting screw rods, and the drainage ports I at the inner ends of the three drainage transverse tubes I are respectively located above the meshing points of the transmission main gear and the three internally threaded gears.

[0008] In some embodiments, the drainage component further includes a drainage transverse pipe II fixedly connected to the storage cavity, and a drainage port II is provided on the drainage transverse pipe II, and the drainage port II is located above the meshing point between the transmission worm and the transmission worm wheel.

[0009] In some embodiments, a lubrication storage barrel is fixedly connected to the bottom of the bottom support circular plate, an oil pump is fixedly connected inside the lubrication storage barrel, a liquid outlet end of the oil pump is slidably connected to the storage cavity, a liquid pumping end of the oil pump extends into the lubrication storage barrel, a liquid discharge vertical pipe with a valve is fixedly connected to the bottom of the lubrication storage barrel, a plurality of reflux holes are evenly arranged on the bottom support circular plate, and the plurality of reflux holes are all located above the lubrication storage barrel.

[0010] In some embodiments, the bottom supporting circular plate is fixedly connected to a limited position straight cavity.

[0011] In some embodiments, a plurality of limiting cylinders are evenly and fixedly connected to the bottom support circular plate, a sealing cover cavity is slidably connected to the plurality of limiting cylinders, and three lifting screw rods all pass through the sealing cover cavity.

[0012] In some embodiments, a storage tray is fixedly connected above the three lifting screw rods.

[0013] In some embodiments, the storage tray is fixedly connected to an outer fixed ring, the inner end of the outer fixed ring is fixedly connected to three telescopic rods, the telescopic ends of the three telescopic rods are fixedly connected to extrusion sliders, the three extrusion sliders are all slidably connected to the storage tray, and the three extrusion sliders are rotatably connected to a contact rotating plate.

[0014] The present invention has at least the following beneficial effects:

[0015] 1. The discharge component will also be started, and lubricating oil will be discharged through the discharge component at this time and fall into the meshing part of the transmission main gear and the three internally threaded gears and the connection part of the three internally threaded gears and the three lifting screw rods, playing a role of lubrication and cooling, which can prevent the various parts from generating greater friction due to contact and matching. If the friction is too large, it will increase the wear of the parts and cause waste of resources. The lubricating oil can also play a role of cooling, because heat will be generated during friction. If the temperature is too high, it may cause the parts to soften, which will reduce the mechanical strength of the parts and cause damage to the parts. The lubricating oil will also leak out through the gears connected between the bottom support circular plate and the three internally threaded gears and enter the three cavity legs. The three cavity legs are used to collect and process the leaked lubricating oil, which can prevent the waste of lubricating oil. The lubricating oil can be used again after being taken out.

[0016] 2. Start the three telescopic rods to drive the three contact rotating plates in the vertical state to move inward through the three extrusion sliders, so that the three contact rotating plates are in contact with the lifted objects, so as to fix the objects and prevent them from relative sliding or moving on the storage tray. When there is no need to fix the objects, just rotate the three contact rotating plates to make them horizontal. At this time, the three contact rotating plates will protrude, ensuring the flatness of the storage tray and further increasing the storage space of the storage tray. At this time, more objects can be placed on the storage tray, further improving the efficiency of lifting objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the overall structure of an intelligent self-lubricating screw lift;

[0019] Figure 2 This is a partial structural diagram of an intelligent self-lubricating screw lift. Figure 1 ;

[0020] Figure 3 This is a partial structural diagram of an intelligent self-lubricating screw lift. Figure 2 ;

[0021] Figure 4 It is a structural schematic diagram of an embodiment of driving a lead screw to be lifted;

[0022] Figure 5 It is a partial structural schematic diagram of an embodiment of driving a lead screw to lift;

[0023] Figure 6 It is a schematic diagram of the specific structure of an embodiment of driving the lead screw to lift;

[0024] Figure 7It is a structural schematic diagram of an embodiment for realizing lubrication of parts;

[0025] Figure 8 This is a schematic diagram of a structure of an embodiment of providing a placement space for supporting items;

[0026] Fig. 9 It is a schematic diagram of the structure of an embodiment of providing a placement space for supporting items;

[0027] Fig.10 It is a structural schematic diagram of an embodiment of squeezing and fixing supported objects.

[0028] In the figure: bottom supporting circular plate 101, internal threaded gear 102, lifting screw 103, bearing vertical cavity 104, transmission main gear 105, cavity support leg 106, transmission worm wheel 201, bearing support seat 301, transmission worm 302, reduction motor 303, storage cavity 401, drainage transverse pipe I402, drainage transverse pipe II403, lubrication storage barrel 501, oil pump 502, drainage vertical pipe 503, reflux hole 504, limit straight cavity 601, limit cylinder 701, sealing cover cavity 702, storage support plate 801, external fixed ring 901, telescopic rod 902, extrusion slider 903, contact rotating plate 904. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-6 The present invention provides a technical solution: an intelligent self-lubricating screw lift, comprising a bottom supporting circular plate 101 and three internally threaded gears 102 that are evenly rotatably connected to the bottom supporting circular plate 101, wherein the three internally threaded gears 102 are all connected with lifting screws 103 through threads, a bearing vertical cavity 104 is fixedly connected to the bottom supporting circular plate 101, a transmission main gear 105 is rotatably connected to the bearing vertical cavity 104, and the transmission main gear 105 is meshed and transmission-connected with the three internally threaded gears 102, three cavity legs 106 are evenly fixedly connected below the bottom supporting circular plate 101, the three lifting screws 103 are respectively located in the three cavity legs 106, and a drainage component is fixedly connected to the bottom supporting circular plate 101.

[0031] The bottom supporting circular plate 101 plays the role of bearing connection, and its center is designed as a conical structure. When the lubricating oil falls on the bottom supporting circular plate 101, it will automatically flow to the center of the bottom supporting circular plate 101. The bottom supporting circular plate 101 can also provide a rotation space for the three internally threaded gears 102. The bottom supporting circular plate 101 and the three internally threaded gears 102 are rotatably connected through bearings and sealed, which can effectively prevent the lubricating oil from leaking through the bearings. The internally threaded gear 102 is composed of a cavity and a gear. The cavity and the gear are fixedly connected. The cavity and The bottom support circular plate 101 is rotatably connected, and the cavity and the gear are both provided with threads. The internal thread gear 102 can provide a connection space for the lifting screw 103. When the internal thread gear 102 rotates, it can drive the lifting screw 103 to move up and down, realizing the conversion of rotary motion into lifting motion. The lifting and lowering of the lifting screw 103 is used to drive the lifting of objects. The bearing vertical cavity 104 can provide a rotation space for the transmission main gear 105. The bearing vertical cavity 104 and the transmission main gear 105 are rotatably connected through the bearing, so that the transmission main The gear 105 can only rotate but cannot move up and down. When the main transmission gear 105 rotates, it can drive the three internal threaded gears 102 to rotate, and finally drive the three lifting screw rods 103 to lift and lower, playing the role of an elevator. The three cavity legs 106 are designed as a hollow structure, and the hollow part thereof can provide storage space for the three lifting screw rods 103. When the lubricating oil leaks out through the gap between the internal threaded gear 102 and the bottom supporting circular plate 101 connecting the bearing, it will directly flow into the three cavity legs 106, thereby avoiding the waste of lubricating oil. Straight pipes with valves are fixed on the three cavity legs 106. The valves are opened regularly to take out the lubricating oil stored in the three cavity legs 106 and reuse them. In addition, the three cavity legs 106 also play a supporting and fixing role, so that the device can be placed stably on the ground. The drainage component can be used to drain and lubricate the meshing parts of each part, thereby ensuring that the meshing parts of each part are in a wetted state, further reducing friction, and extending the service life of each part.

[0032] Furthermore, the objects to be lifted can be placed on the lifting screw rod 103, and the transmission main gear 105 can be rotated. When the transmission main gear 105 rotates, the three internally threaded gears 102 can be driven to rotate at the same time, and finally the three lifting screw rods 103 can be driven to rise and fall synchronously. When the transmission main gear 105 rotates, the drainage component will also be started. At this time, lubricating oil will be discharged through the drainage component and fall to the meshing part of the transmission main gear 105 and the three internally threaded gears 102 and the connection part of the three internally threaded gears 102 and the three lifting screw rods 103, which plays a role of lubrication and cooling. Prevent greater friction from being generated between parts due to contact and cooperation. If the friction is too great, the wear of the parts will increase, resulting in a waste of resources. The lubricating oil can also play a role in cooling down, because heat will be generated during friction. If the temperature is too high, the parts may become soft, which will reduce the mechanical strength of the parts and cause damage to the parts. The lubricating oil will also leak out through the gears connected between the bottom support circular plate 101 and the three internally threaded gears 102 and enter the three cavity legs 106. The three cavity legs 106 are used to collect and process the leaked lubricating oil, which can prevent the waste of lubricating oil. The lubricating oil can be used again after being taken out.

[0033] Example 2: Please refer to Figure 1-4 The present invention provides a technical solution: a transmission worm gear 201 is coaxially fixedly connected to the transmission main gear 105.

[0034] The transmission main gear 105 is provided with a plurality of threaded holes, and the transmission worm gear 201 is connected to the plurality of threaded holes on the transmission main gear 105 by a plurality of bolts, so that the transmission main gear 105 and the transmission worm gear 201 are fixed together to form a whole, and the transmission main gear 105 and the transmission worm gear 201 are coaxial, and the transmission main gear 105 can be driven to rotate by the transmission worm gear 201, and finally the three lifting screw rods 103 are driven to be lifted and lowered by the three internally threaded gears 102.

[0035] Example 3: Please refer to Figure 1-5 The present invention provides a technical solution: a bearing support seat 301 is fixedly connected to the bottom supporting circular plate 101, a transmission worm 302 is rotatably connected to the bearing support seat 301, the transmission worm 302 is meshed and transmission-connected with the transmission worm wheel 201, a reduction motor 303 is fixedly connected to the bearing support seat 301, and the output shaft of the reduction motor 303 is fixedly connected to the transmission worm 302.

[0036] The bearing support seat 301 can provide a space for the transmission worm 302 to rotate, and when the transmission worm 302 rotates, it can drive the transmission worm wheel 201, and finally drive the transmission main gear 105 to rotate. The bearing support seat 301 can also provide a fixed space for the reduction motor 303. After starting the reduction motor 303, the transmission worm 302 can be driven to rotate. The advantage of using the worm gear transmission is that it has a self-locking function and can generate greater torque, which can realize the lifting of heavier objects. In addition, the drainage component can also discharge the lubricating oil to the meshing point between the transmission worm 302 and the transmission worm wheel 201, further reducing the friction and temperature between the transmission worm 302 and the transmission worm wheel 201, and extending the service life of the transmission worm 302 and the transmission worm wheel 201.

[0037] Example 4: Please refer to Figure 1-3 7. The present invention provides a technical solution: the drainage component includes a storage cavity 401 and three drainage transverse tubes 1402 fixedly connected to the storage cavity 401 and connected, each drainage transverse tube 1402 is provided with two drainage ports I, the drainage ports I at the outer ends of the three drainage transverse tubes 1402 are respectively located above the meshing positions of the three internally threaded gears 102 and the three lifting screw rods 103, and the drainage ports I at the inner ends of the three drainage transverse tubes 1402 are respectively located above the meshing positions of the transmission main gear 105 and the three internally threaded gears 102.

[0038] The storage cavity 401 is fixed at the center of the bottom support circular plate 101, and lubricating oil is stored therein. The storage cavity 401 can provide a fixed space for three drainage transverse tubes I402, and the three drainage transverse tubes I402 are connected to the storage cavity 401. The lubricating liquid entering the storage cavity 401 can flow into the three drainage transverse tubes I402, and finally be discharged through the three drainage transverse tubes I402. Because each drainage transverse tube I402 is provided with two drainage ports I, the lubricating liquid entering the drainage transverse tube I402 will eventually be discharged through the two drainage ports I, and the discharged lubricating oil will respectively act on the meshing positions of the three internally threaded gears 102 and the three lifting screw rods 103 and the meshing positions of the transmission main gear 105 and the three internally threaded gears 102, thereby achieving lubrication and cooling treatment on the meshing positions, which can further extend the service life of each component.

[0039] Example 5: Please refer to Figure 1-3 And 7, the present invention provides a technical solution: the drainage component also includes a drainage transverse pipe II403 fixedly connected to the storage cavity 401, and a drainage port II is provided on the drainage transverse pipe II403, and the drainage port II is located above the meshing point between the transmission worm 302 and the transmission worm wheel 201.

[0040] The storage cavity 401 can provide a fixed space for the drainage transverse pipe II403 and be connected. The lubricating liquid entering the storage cavity 401 can be discharged through the drainage port II on the drainage transverse pipe II403. The lubricating liquid finally discharged can act on the meshing point between the transmission worm 302 and the transmission worm wheel 201, thereby achieving lubrication and cooling treatment on the meshing point between the transmission worm 302 and the transmission worm wheel 201, and further extending the service life of each component.

[0041] Example 6: Please refer to Figure 1-7 The present invention provides a technical solution: a lubrication storage barrel 501 is fixedly connected to the bottom of the bottom supporting circular plate 101, an oil pump 502 is fixedly connected inside the lubrication storage barrel 501, a liquid outlet end of the oil pump 502 is slidably connected to a storage cavity 401, a liquid pumping end of the oil pump 502 extends into the lubrication storage barrel 501, a liquid discharge vertical pipe 503 with a valve is fixedly connected to the bottom of the lubrication storage barrel 501, a plurality of reflux holes 504 are evenly arranged on the bottom supporting circular plate 101, and the plurality of reflux holes 504 are all located above the lubrication storage barrel 501.

[0042] The lubrication storage barrel 501 is fixedly connected to the bottom support circular plate 101 by multiple screws, which facilitates the disassembly of the lubrication storage barrel 501 for cleaning and replacement. The lubrication storage barrel 501 can provide storage space for the lubricant, and the lubricant can be stored in the lubrication storage barrel 501, and the lubrication storage barrel 501 can provide a fixed space for the oil pump 502. The oil pump 502 is connected to the external power supply through a wire and a switch. The oil pump 502 and the reduction motor 303 are controlled by the same switch to achieve simultaneous start and stop of the oil pump 502 and the reduction motor 303, ensuring that the lift will be lubricated and cooled immediately when it is working. The lubricant in the lubrication storage barrel 501 can be taken out and replaced through the drainage vertical pipe 503. Because the upper surface of the bottom support circular plate 101 is designed with a conical structure, multiple reflux holes 50 4 is located at the lowest point of the cone. When the lubricating oil acts on each part, it will fall back to the cone surface of the bottom bracket circular plate 101 and automatically slide down, and flow back to the lubricating storage barrel 501 through multiple return flow holes 504, so that the lubricating liquid in the lubricating storage barrel 501 is replenished and reused. The lubricating liquid in the lubricating storage barrel 501 is completely discharged through the drainage vertical pipe 503. When the new lubricating liquid is replaced, the new lubricating liquid can be poured on the bottom bracket circular plate 101, and the new lubricating liquid will flow back to the lubricating storage barrel 501 through multiple return flow holes 504, so that the lubricating liquid is replaced. The lubricating liquid taken out from the three cavity legs 106 can be poured on the bottom bracket circular plate 101, and flow back to the lubricating storage barrel 501 through multiple return flow holes 504, so that the lubricating liquid is reused again and the waste of resources is avoided.

[0043] Example 7: Please refer to Figure 1 and 2The present invention provides a technical solution: a limited position straight cavity 601 is fixedly connected to the bottom supporting circular plate 101 .

[0044] After the limited straight cavity 601 is provided, the discharged lubricating liquid can be shielded to prevent the lubricating liquid from splashing when being discharged downward, thereby causing waste of the lubricating liquid.

[0045] Example 8: Please refer to Figure 1 and 2 The present invention provides a technical solution: a plurality of limiting cylinders 701 are evenly and fixedly connected to the bottom supporting circular plate 101 , a sealing cover cavity 702 is slidably connected to the plurality of limiting cylinders 701 , and three lifting screw rods 103 all pass through the sealing cover cavity 702 .

[0046] A plurality of limiting cylinders 701 can provide sliding space for the sealing cover cavity 702 and limit it so that the sealing cover cavity 702 can only slide up and down but cannot rotate. The sealing cover cavity 702 can be used to shield the opening above the limiting straight cavity 601 to prevent debris from entering the device through the opening above the limiting straight cavity 601. If hard objects enter the device and fall onto the meshing points of various parts, the transmission between the parts may be affected, and serious damage may be caused to the parts.

[0047] Example 9: Please refer to Figure 1 and 8 -10, the present invention provides a technical solution: a storage support plate 801 is fixedly connected above the three lifting screw rods 103.

[0048] The storage tray 801 is provided to fix the three lifting screw rods 103 together, preventing the three lifting screw rods 103 from rotating around their own axes, ensuring that the three lifting screw rods 103 can only produce up and down lifting movements, and the objects that need to be lifted can also be placed on the storage tray 801, providing space for placing the objects, further improving the efficiency of lifting the objects.

[0049] Example 10: Please refer to Figure 1 and 8 -10. The present invention provides a technical solution: an outer fixed ring 901 is fixedly connected to the storage tray 801, and three telescopic rods 902 are fixedly connected to the inner end of the outer fixed ring 901. The telescopic ends of the three telescopic rods 902 are fixedly connected to extrusion sliders 903. The three extrusion sliders 903 are all slidably connected to the storage tray 801, and the three extrusion sliders 903 are rotatably connected to a contact rotating plate 904.

[0050] The outer fixing ring 901 is fixed to the outer end surface of the storage tray 801 by multiple screws. The outer fixing ring 901 can provide a fixed space for the three telescopic rods 902. The three telescopic rods 902 are connected by the same wire and switch to achieve simultaneous extension and retraction of the three telescopic rods 902. After the three telescopic rods 902 are started, the three squeezing sliders 903 can be driven to slide, thereby changing the positions of the three contact rotating plates 904. When it is necessary to fix the items placed on the storage tray 801, the three contact rotating plates 904 are rotated to make the three contact rotating plates 904 in a vertical state. At this time, the height of the three contact rotating plates 904 is higher than the storage tray 801, and the three telescopic rods are started. 902 drives the three contact rotating plates 904 in the vertical state to move inward through the three squeezing sliders 903, so that the three contact rotating plates 904 are in contact with the lifted objects, thereby achieving the fixation of the objects and preventing the objects from sliding or moving relative to each other on the storage tray 801. When there is no need to fix the objects, it is only necessary to rotate the three contact rotating plates 904 to make the three contact rotating plates 904 in a horizontal state. At this time, the three contact rotating plates 904 will protrude, ensuring the flatness of the storage tray 801 and further increasing the storage space of the storage tray 801. At this time, more objects can be placed on the storage tray 801, further improving the efficiency of lifting objects.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An intelligent self-lubricating screw lift, characterized in that: The invention comprises a bottom supporting circular plate (101) and three internally threaded gears (102) which are evenly rotatably connected to the bottom supporting circular plate (101); the three internally threaded gears (102) are all connected to lifting screw rods (103) through threads; a bearing vertical cavity (104) is fixedly connected to the bottom supporting circular plate (101); a transmission main gear (105) is rotatably connected to the bearing vertical cavity (104); the transmission main gear (105) is meshed and transmission-connected with the three internally threaded gears (102); three cavity legs (106) are evenly fixedly connected below the bottom supporting circular plate (101); the three lifting screw rods (103) are respectively located inside the three cavity legs (106); and a liquid discharge component is fixedly connected to the bottom supporting circular plate (101).

2. The intelligent self-lubricating screw lifter according to claim 1, characterized in that: A transmission worm gear (201) is coaxially and fixedly connected to the transmission main gear (105).

3. The intelligent self-lubricating screw lifter according to claim 2 is characterized in that: The bottom supporting circular plate (101) is fixedly connected to a bearing support seat (301), a transmission worm (302) is rotatably connected to the bearing support seat (301), the transmission worm (302) is meshed and transmission-connected with the transmission worm wheel (201), a reduction motor (303) is fixedly connected to the bearing support seat (301), and an output shaft of the reduction motor (303) is fixedly connected to the transmission worm (302).

4. The intelligent self-lubricating screw lifter according to claim 3 is characterized in that: The drainage component comprises a storage cavity (401) and three drainage transverse tubes I (402) fixedly connected to the storage cavity (401) and connected to each other. Two drainage ports I are arranged on each drainage transverse tube I (402). The drainage ports I at the outer ends of the three drainage transverse tubes I (402) are respectively located above the meshing positions of the three internally threaded gears (102) and the three lifting screw rods (103). The drainage ports I at the inner ends of the three drainage transverse tubes I (402) are respectively located above the meshing positions of the transmission main gear (105) and the three internally threaded gears (102).

5. The intelligent self-lubricating screw lifter according to claim 4 is characterized in that: The drainage component also includes a drainage transverse pipe II (403) fixedly connected to the storage cavity (401), and a drainage port II is provided on the drainage transverse pipe II (403). The drainage port II is located above the meshing position of the transmission worm (302) and the transmission worm wheel (201).

6. The intelligent self-lubricating screw lifter according to claim 5, characterized in that: A lubricating storage barrel (501) is fixedly connected below the bottom supporting circular plate (101), an oil pump (502) is fixedly connected inside the lubricating storage barrel (501), a liquid outlet end of the oil pump (502) is slidably connected to the storage cavity (401), a liquid pumping end of the oil pump (502) extends into the lubricating storage barrel (501), a liquid discharge vertical pipe (503) with a valve is fixedly connected below the lubricating storage barrel (501), and a plurality of reflux holes (504) are evenly arranged on the bottom supporting circular plate (101), and the plurality of reflux holes (504) are all located above the lubricating storage barrel (501).

7. The intelligent self-lubricating screw lifter according to claim 6, characterized in that: The bottom supporting circular plate (101) is fixedly connected to a limited position straight cavity (601).

8. The intelligent self-lubricating screw lifter according to claim 7, characterized in that: The bottom supporting circular plate (101) is evenly and fixedly connected with a plurality of limiting cylinders (701), the plurality of limiting cylinders (701) are slidably connected with a sealing cover cavity (702), and the three lifting screw rods (103) all pass through the sealing cover cavity (702).

9. The intelligent self-lubricating screw lifter according to claim 1, characterized in that: A storage support plate (801) is fixedly connected above the three lifting screw rods (103).

10. The intelligent self-lubricating screw lifter according to claim 9, characterized in that: The storage support plate (801) is fixedly connected to an external fixed circular ring (901), the inner end of the external fixed circular ring (901) is fixedly connected to three telescopic rods (902), the telescopic ends of the three telescopic rods (902) are fixedly connected to extrusion sliders (903), the three extrusion sliders (903) are slidably connected to the storage support plate (801), and the three extrusion sliders (903) are rotatably connected to contact rotating plates (904).

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