An in-line low thermal resistance transmission device

Abstract

The application belongs to the technical field of transmission equipment, and specifically relates to an embedded low-thermal-resistance transmission device, which comprises a supporting frame, a driving motor connected to the supporting frame, a transmission shaft fixedly connected to the output end of the driving motor, a limiting gear rod fixedly connected to the end of the transmission shaft away from the driving motor, an inner gear sleeve coaxially and slidingly connected to the limiting gear rod, a driving gear sleeve coaxially connected to the inner gear sleeve, a winding drum rotatably connected to the inside of the supporting frame, a lifting cable wound on the winding drum, a lifting appliance fixedly connected to the lower end of the lifting cable, a driving sleeve coaxially and fixedly connected to the inside of the winding drum, and a driving gear ring coaxially and fixedly connected to the inside of the driving sleeve; and the embedded low-thermal-resistance transmission device has high practicability.

Description

Technical Field

[0001] This invention relates to the field of transmission equipment technology, specifically an embedded low thermal resistance transmission device. Background Technology

[0002] Planetary gear reducers are commonly used transmission devices widely applied in mechanical equipment to reduce the output shaft speed and increase torque. Their structure mainly consists of an external gear ring, planetary gears, and a sun gear. Planetary gear reducers are favored for their compact structure, large transmission ratio, and stable torque output. The working principle of a planetary gear reducer is simple and clear: the sun gear drives the planetary gears to rotate, and the planetary gears, supported by the external gear ring, achieve rotation, thereby reducing the output shaft speed and increasing torque output. This transmission method makes planetary gear reducers widely used in various mechanical equipment, such as industrial machinery, automation equipment, and food processing machinery. Planetary gear reducers have advantages such as high transmission efficiency, smooth operation, and long service life, and can meet the needs of different working conditions. In modern industrial production, planetary gear reducers play a vital role, providing reliable power support for the normal operation of mechanical equipment.

[0003] Chinese patent application CN202321980771.2 discloses an embedded integrated air-cooled shell planetary reducer. When the shaft rotates, it drives the sun gear to rotate, which in turn drives the planetary gears to rotate, and then drives the planetary carrier to rotate. When the shaft rotates, it drives the main crankshaft gear to rotate, which in turn drives the secondary crankshaft gear to rotate. Under the meshing action between the driving gear and the driven gear, the fan blades can be driven to rotate, thereby dissipating heat from the device. In this way, the fan blades can be driven to rotate by the structure itself, without the need for an additional power supply, thus reducing energy waste. This solves the problem mentioned in the background where the device is equipped with an air-cooled fan in the shell to assist in heat dissipation, but adding a fan will increase the waste of electrical energy.

[0004] Chinese patent application number CN202323556191.3 discloses a planetary reducer output transmission structure. By setting a limiting groove, a first electromagnet, a movable collar, a spring, and a limiting ball, the interaction between the first electromagnet and the spring causes the slider on the outside of the movable collar to move within the groove, so that the recessed part approaches or moves away from the top of the placement hole. This allows the limiting groove or the recessed part to temporarily accommodate the limiting ball, thereby fixing or separating the output shaft of the planetary reducer from the inner sleeve of the equipment, or fixing or separating the output shaft of the servo motor from the inner sleeve of the planetary reducer. The disassembly and assembly process is simple and quick.

[0005] By setting up a second electromagnet, a slot, and a retaining bar, when the planetary reducer body is connected to an external device and in use, the second electromagnet is energized while the first electromagnet is de-energized. At this time, the slider is tightly pressed against the second electromagnet, fixing the moving collar. This prevents the moving collar from shifting due to spring action during external vibrations, ensuring a stable connection. Simultaneously, the slot and retaining bar form a protective shell on the outside of the fixed structure, preventing dust accumulation during use. However, the following problems still exist in practical applications:

[0006] 1. Most existing transmission mechanisms are specialized mechanisms with limited application scope. They are not universally applicable to industries such as hoisting machinery, construction machinery, and new energy gravity storage, and their application scope is relatively narrow.

[0007] 2. During the operation of the planetary reducer, the gear components will wear due to long-term operation, affecting the service life. At the same time, a lot of heat will be generated. If heat is not dissipated in time, it will also cause high-temperature friction, which will affect the normal operation of the equipment itself.

[0008] 3. During the process of lubricating and cooling the planetary gear set with lubricating oil, a small amount of impurities will be generated when the lubricating oil participates in the friction process. These impurities will affect the planetary gear set during high-frequency rotation and need to be replaced regularly. In addition, if the impurities are still present before replacement, they will still affect the tooth surface accuracy.

[0009] 4. When driven by a drive motor, the weight of the load will cause the drum to rotate, which will lead to unsustainable lifting and prevent the drum from being locked in a timely manner.

[0010] Therefore, the present invention provides an embedded low thermal resistance transmission device to solve the above problems. Summary of the Invention

[0011] In view of the above situation and to overcome the defects of the prior art, the present invention provides an embedded low thermal resistance transmission device, which effectively solves the problems of poor applicability of the transmission mechanism, inconvenience in replacing the drum, and temperature rise and wear of parts caused by friction.

[0012] The present invention includes a support frame, a drive motor connected to the support frame, a mounting base connected to the lower end of the support frame, a transmission shaft fixedly connected to the output end of the drive motor, a limiting gear fixedly connected to the end of the transmission shaft away from the drive motor, an inner toothed sleeve coaxially slidably connected to the limiting gear, a drive toothed sleeve coaxially connected to the inner toothed sleeve, a drum rotatably connected inside the support frame, a lifting cable wound on the drum, a lifting device fixedly connected to the lower end of the lifting cable, a drive sleeve coaxially fixedly connected inside the drum, and a drive toothed ring coaxially fixedly connected inside the drive sleeve.

[0013] The support frame is rotatably connected to an intermediate shaft. The intermediate shaft has a limiting tooth groove that cooperates with the drive sleeve. The drive sleeve and the limiting tooth groove cooperate to realize the synchronous rotation of the limiting tooth rod and the intermediate shaft. The intermediate shaft is placed inside the drive sleeve. The intermediate shaft is connected to the drive gear ring through a planetary gear set. The planetary gear set realizes the speed reduction transmission between the drive motor and the drive sleeve.

[0014] Both the drive motor and the upper end of the support frame are connected to lifting rings, which are used to lift the support frame.

[0015] Preferably, the drive sleeve is filled with lubricating oil, and the drive sleeve is connected to an oil injection structure and an oil discharge structure. The lubricating oil is circulated through the oil injection structure and the oil discharge structure, so as to lubricate the planetary gear set and carry away the heat generated by friction from the drive sleeve.

[0016] Preferably, the oil discharge structure includes a return fluid chamber formed on the inner wall of the drive sleeve, and the inner wall of the drive sleeve is provided with a plurality of fluid passage holes, through which the lubricating oil inside the drive sleeve flows back to the return fluid chamber.

[0017] The drive sleeve is coaxially fixedly connected to a collection chamber at the end away from the drive motor. The collection chamber is connected to the return chamber. A conical collector plate is coaxially connected inside the collection chamber at the end away from the drive sleeve. A return pipe is coaxially rotatably connected to the collection chamber. The return pipe is connected to an oil storage tank connected to the support frame. An oil pump is installed inside the oil storage tank. The oil pump draws the contents of the collection chamber to a negative pressure state.

[0018] Preferably, an auxiliary sealing structure is connected between the return pipe and the collection chamber. The auxiliary sealing structure includes a connecting sleeve that is coaxially and fixedly connected to the collection chamber. An annular sealing rail is provided inside the connecting sleeve. An adjusting ring is coaxially and rotatably connected inside the annular sealing rail. The axis of the adjusting ring is coaxially and fixedly connected to the return pipe.

[0019] Both ends of the adjusting ring are provided with annular rails, and a sealing ring plate is slidably connected coaxially inside the annular rail. The wall surface of the sealing ring plate is in contact with the inner wall of the annular sealing rail, and the sealing ring plate is made of elastic material.

[0020] Preferably, the oil injection structure includes an injection pipe connected to the oil storage tank, the injection pipe connected to the discharge end of the oil pump, the injection pipe passing through the axis of the return pipe, the injection pipe being rotatably connected to the collection chamber, the inner diameter of the return pipe being larger than the outer diameter of the injection pipe, the injection pipe passing through the collection chamber and placed inside the drive sleeve, and an atomizing nozzle being fixedly connected to one end of the injection pipe placed in the drive sleeve. The lubricating oil inside the oil storage tank is sprayed into the drive sleeve through the injection pipe and the atomizing nozzle, thereby achieving lubrication of the planetary gear set.

[0021] Preferably, a filter screen is fixedly connected inside the oil storage tank to filter the lubricating oil, and a collection box is fixedly connected to one side of the oil storage tank to collect filtered impurities.

[0022] A scraper is slidably connected to the upper end of the filter screen plate. The scraper is threadedly connected to a reciprocating screw that is rotatably connected inside the oil tank. The reciprocating screw is externally driven.

[0023] The collection box has a storage rail on the side near the oil storage tank. An isolation plate is slidably connected inside the storage rail. The isolation plate and the storage rail are connected by a spring. The end of the isolation plate near the oil storage tank is inclined.

[0024] Preferably, the scraper has a plurality of oil passage holes, the scraper includes a main frame, a rotating filter plate is rotatably connected to the main frame, the rotating filter plate and the main frame are connected by a torsion spring, a wedge-shaped stop is fixedly connected to the end of the filter plate away from the receiving rail, and a limit baffle is fixedly connected to the main frame.

[0025] Preferably, both ends of the drum are fixedly connected to limit rings, and the limit rings are coaxially slidably connected to limit retaining rings. The limit retaining rings are provided with a plurality of limit holes distributed on a circular shaft. The support frame is fixedly connected to a limit frame, and the limit frame is fixedly connected to two symmetrically distributed limit pins. The drum is limited by the cooperation of the limit pins and the limit holes.

[0026] Preferably, the limiting pin includes a limiting sleeve, and the limiting sleeve is coaxially and slidably connected to the limiting pin inside, and the limiting pin and the limiting sleeve are connected by a spring.

[0027] This invention improves upon existing transmission mechanisms and has the following beneficial effects:

[0028] 1. By setting up a transmission shaft, a limit toothed rod, a drive sleeve, a limit toothed groove, and an intermediate shaft, the effective driving of the roller is effectively solved. At the same time, the drive motor and the roller can be disassembled and separated, which makes it easy to replace the roller according to different usage environments and improves versatility.

[0029] 2. By setting up a return fluid chamber, fluid passage, collection chamber, conical manifold, return pipe and oil reservoir, the lubricating oil entering the drive sleeve is effectively discharged, and the problem of timely replacement is solved;

[0030] 3. By setting up an oil injection structure, the problem of spraying lubricating oil into the drive sleeve is effectively solved. At the same time, the oil injection and oil discharge structures realize the problem of recycling lubricating oil.

[0031] 4. By setting up a filter screen, scraper, collection rail, isolation plate, reciprocating screw and other structures, the impurity removal of lubricating oil is effectively achieved. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0033] Figure 2 This is a schematic diagram of the internal structure of the drive sleeve of the present invention.

[0034] Figure 3 This is a schematic diagram of the roll locking structure of the present invention.

[0035] Figure 4 This is a schematic diagram of the drive sleeve and its connecting parts according to the present invention.

[0036] Figure 5 For the present invention Figure 4 A magnified view of a portion of point A in the middle.

[0037] Figure 6 This is a schematic diagram of the internal structure of the oil storage tank of the present invention.

[0038] Figure 7 This is a schematic diagram of the scraper structure of the present invention.

[0039] Figure 8 This is a schematic diagram of the limiting frame and its connecting parts of the present invention.

[0040] Figure 9 This is a schematic diagram of the roll and its connecting parts of the present invention.

[0041] Reference numerals: 1. Support frame; 2. Drive motor; 3. Transmission shaft; 4. Limiting gear; 5. Drum; 6. Drive sleeve; 7. Drive gear ring; 8. Intermediate shaft; 9. Limiting gear groove; 10. Return chamber; 11. Liquid passage hole; 12. Collection chamber; 13. Conical manifold; 14. Return pipe; 15. Oil storage tank; 16. Oil pump; 17. Connecting sleeve; 18. Annular sealing rail; 19. Adjusting ring; 20. Annular rail; 21. Sealing ring plate; 22. Injection pipe; 23. Atomizing nozzle; 24. Filter plate; 25. Collection box; 26. Scraper; 27. Reciprocating screw; 28. Collection rail; 29. ​​Isolation plate; 30. Oil passage hole; 31. Main frame; 32. Rotating filter plate; 33. Limiting baffle; 34. Limiting ring; 35. Limiting retaining ring; 36. Limiting hole; 37. Limiting bracket; 38. Limiting shaft pin; 39. Limiting sleeve; 40. Limiting pin; 41. Electromagnet; 42. Wedge-shaped stop; 43. Internal gear sleeve; 44. Drive gear sleeve. Detailed Implementation

[0042] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 9 The detailed description of the embodiments will make this clear. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0043] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0044] This invention includes a support frame 1, a drive motor 2 connected to the support frame 1, a transmission shaft 3 fixedly connected to the output end of the drive motor 2, and the rotation of the drive motor 2 drives the rotation of the transmission shaft 3, with the drive motor 2 serving as the drive source. A limiting gear 4 is fixedly connected to the end of the transmission shaft 3 away from the drive motor 2, and an inner gear sleeve 43 is slidably connected to the limiting gear 4 on the same axis. A drive gear sleeve 44 is coaxially connected to the inner gear sleeve 43. A drum 5 is rotatably connected inside the support frame 1, and a lifting cable is wound on the drum 5. A lifting device is fixedly connected to the lower end of the lifting cable. A drive sleeve 6 is coaxially fixedly connected inside the drum 5, and a drive gear ring 7 is coaxially fixedly connected inside the drive sleeve 6. The rotation of the drive gear ring 7 drives the drum 5 to rotate synchronously.

[0045] The support frame 1 is rotatably connected to an intermediate shaft 8. The intermediate shaft 8 has a limiting tooth groove 9 that cooperates with the drive gear sleeve 44. The drive gear sleeve 44 and the limiting tooth groove 9 cooperate to realize the synchronous rotation of the limiting gear rod 4 and the intermediate shaft 8. It also facilitates the separation of the planetary reduction part and the drive motor 2 for easy disassembly and assembly. The intermediate shaft 8 is placed inside the drive sleeve 6. The intermediate shaft 8 is connected to the drive gear ring 7 through a planetary gear set. The planetary gear set is placed inside the drive sleeve 6, and the reduction transmission between the drive motor 2 and the drive sleeve 6 is realized through the planetary gear set.

[0046] The drive sleeve 6 is filled with lubricating oil. An oil injection structure and an oil discharge structure are connected to the drive sleeve 6. The oil injection structure adds lubricating oil to the drive sleeve 6, while the oil discharge structure discharges the lubricating oil to the outside, achieving lubricating oil circulation. This circulation of lubricating oil through the oil injection and discharge structures lubricates the planetary gear set and also removes the heat generated by friction from the drive sleeve 6. Both the drive motor 2 and the support frame 1 are connected to lifting rings at their upper ends, enabling the lifting of the support frame 1.

[0047] In this embodiment, the support frame 1 is first fixed to a suitable position. Then, the drive motor 2 and the drive sleeve 6 are connected through the cooperation of the limiting tooth groove 9 and the limiting tooth rod 4. The drive motor 2 is fixed on the support frame 1. At the same time, the oil injection structure and the oil discharge structure are activated, and the drive motor 2 is started. The rotation of the drive motor 2 drives the transmission shaft 3 to rotate. The transmission shaft 3 drives the intermediate shaft 8 to rotate through the limiting tooth rod 4 and the limiting tooth groove 9. The rotation of the intermediate shaft 8 drives the drive sleeve 6 to rotate through the planetary gear set. The rotation of the drive sleeve 6 drives the roller to rotate. At the same time, the oil injection structure adds lubricating oil into the drive sleeve 6. The lubricating oil lubricates and cools the planetary gear set. After cooling and lubrication, the lubricating oil is discharged from the drive sleeve 6 through the oil discharge structure, thereby realizing the recycling of the lubricating oil.

[0048] The oil discharge structure includes a return fluid chamber 10 formed on the inner wall of the drive sleeve 6. The inner wall of the drive sleeve 6 is provided with a plurality of fluid passage holes 11. Lubricating oil enters the return fluid chamber 10 through the fluid passage holes 11 to realize the recovery of the lubricating oil. At the same time, the drive sleeve 6 rotates, and the lubricating oil flows into the return fluid chamber 10 through the fluid passage holes 11 under the action of centrifugal force to realize the collection of the lubricating oil after lubrication. The lubricating oil inside the drive sleeve 6 flows back to the return fluid chamber 10 through the fluid passage holes 11.

[0049] The drive sleeve 6 is coaxially fixedly connected to a collecting chamber 12 at the end away from the drive motor 2. The collecting chamber 12 is connected to the return chamber 10. The lubricating oil in the return chamber 10 flows towards the collecting chamber 12. A conical collector plate 13 is coaxially connected to the end of the collecting chamber 12 away from the drive sleeve 6. Through the guiding effect of the conical collector plate 13, the lubricating oil is collected towards the axial position of the conical collector plate 13 and continuously delivered to the conical collector plate 13. The collecting chamber 12 is coaxially connected to a return pipe 1. 4. The return pipe 14 and the collection chamber 12 are rotatably connected, ensuring that the return pipe 14 remains stationary while the drive sleeve 6 rotates. The return pipe 14 is connected to the oil storage tank 15 connected to the support frame 1. The oil storage tank 15 is equipped with an oil pump 16, which draws the inside of the collection chamber 12 to a negative pressure state. Due to the pressure action of the oil pump 16, the return pipe 14 and the collection chamber 12 are in a low-pressure state, thereby allowing the lubricating oil to flow more smoothly into the oil storage tank 15.

[0050] Since the collecting chamber 12 rotates synchronously with the driving sleeve 6, in order to ensure the stability of the connection between the return pipe 14 and the collecting chamber 12 and to prevent the lubricating oil from leaking from the return pipe 14 and the collecting chamber 12, an auxiliary sealing structure is provided. Specifically, based on the existing sealing structure, an auxiliary sealing structure is provided between the return pipe 14 and the collecting chamber 12. The auxiliary sealing structure includes a connecting sleeve 17 that is coaxially and fixedly connected to the collecting chamber 12. An annular sealing rail 18 is provided inside the connecting sleeve 17. An adjusting ring 19 is coaxially and rotatably connected inside the annular sealing rail 18. The adjusting ring 19 is fixedly connected to the return pipe 14. The outer wall surface of the adjusting ring 19 and the... The inner wall surface of the annular sealing rail 18 is in contact with the inner wall surface. The adjusting ring 19 and the return pipe 14 are coaxially fixedly connected. Both ends of the adjusting ring 19 are provided with annular rails 20. A sealing ring plate 21 is slidably connected coaxially inside the annular rail 20. The sealing ring plate 21 and the annular rail 20 are connected by a spring. The wall surface of the sealing ring plate 21 is in contact with the inner wall surface of the annular sealing rail 18. The sealing ring plate 21 is made of elastic material. Under the action of the spring, the sealing ring plate 21 is always in close contact with the inner wall surface of the annular rail 20. Even with long-term rotational wear, the sealing ring plate 21 automatically compensates under the action of the spring and always remains in contact with the inner wall surface of the annular rail 20.

[0051] To achieve the injection of lubricating oil into the drive sleeve 6 and ensure the circulation of the lubricating oil, the oil injection structure includes an injection pipe 22 connected to the oil storage tank 15. The injection pipe 22 is connected to the discharge end of the oil pump 16, and the extracted lubricating oil is circulated into the drive sleeve 6 through the oil pump 16. The injection pipe 22 passes through the axis of the return pipe 14, and the injection pipe 22 and the drive sleeve 6 are rotatably connected to ensure the proper functioning of the drive sleeve 6 and the injection pipe 22. The system operates independently. The inner diameter of the return pipe 14 is larger than the outer diameter of the injection pipe 22. The injection pipe 22 passes through the collection chamber 12 and is placed inside the drive sleeve 6. An atomizing nozzle 23 is fixedly connected to one end of the injection pipe 22 and the drive sleeve 6. The atomizing nozzle and the drive sleeve 6 are rotatably connected. The lubricating oil inside the oil storage tank 15 is sprayed into the drive sleeve 6 through the injection pipe 22 and the atomizing nozzle 23, thereby achieving lubrication and cooling of the planetary gear set.

[0052] During the transmission process between gears, wear occurs, and some impurities are mixed into the lubricating oil. If the lubricating oil is not cleaned for a long time, the wear on the gear teeth will be accelerated. Therefore, a structure for filtering and purifying lubricating oil is provided. Specifically, a filter screen plate 24 is fixedly connected inside the oil storage tank 15 to filter the lubricating oil. A collection box 25 is fixedly connected to one side of the oil storage tank 15 to collect the filtered impurities.

[0053] The accumulation of filter residue over a long period of time can cause blockage of the filter screen plate 24. Therefore, a structure for cleaning the filter screen plate 24 is provided. Specifically, a scraper 26 is slidably connected to the upper end of the filter screen plate 24. The scraper 26 is threadedly connected to a reciprocating screw 27 rotatably connected inside the oil storage tank 15. The reciprocating screw 27 is externally driven by a drive source. The rotation of the reciprocating screw 27 drives the scraper 26 to reciprocate. During the reciprocating sliding process of the scraper 26, the filter screen plate 24 is cleaned. A collection rail 28 is provided on the side of the collection box 25 near the oil storage tank 15. An isolation plate 29 is slidably connected up and down inside the collection rail 28. The isolation plate 29 and the receiving rail 28 are connected by a spring. The end of the isolation plate 29 near the oil tank 15 is inclined. The receiving rail 28 collects the impurities cleaned by the scraper 26. At the same time, the process of the isolation plate 29 sliding up and down also achieves isolation between the oil tank 15 and the receiving rail 28. Only when the scraper 26 slides to one side of the receiving rail 28 will the isolation plate 29 slide downward, thereby facilitating the entry of the impurities into the receiving rail 28. At the same time, when the scraper 26 slides into the inner chamber of the oil tank 15, the isolation plate 29 rises to achieve isolation between the oil tank 15 and the receiving rail 28.

[0054] To prevent the scraper 26 from scraping the lubricating oil retained on the filter plate 24 into the receiving rail 28 during the sliding process, a novel scraper 26 structure is provided to avoid the accumulation of impurities on the side away from the receiving rail 28 during the reciprocating sliding process of the scraper 26. Specifically, the scraper 26 has several oil passage holes 30 to allow the lubricating oil to pass smoothly through it. The scraper 26 includes a main frame 31, which is threadedly connected to the reciprocating lead screw 27. A rotating filter plate 32 is rotatably connected to the main frame 31, and the rotating filter plate 32 and the main frame 31 are connected by a torsion spring. A limiting baffle 33 is fixedly connected to the main frame 31. The limiting baffle 33 limits the rotation of the filter plate 32. At the same time, a wedge-shaped stop 42 is fixedly connected to the end of the filter screen plate 24 away from the receiving rail 28. When the scraper 26 slides towards the receiving rail 28, the rotating filter plate 32 is always in a vertical state and in contact with the filter screen plate 24 under the limiting action of the limiting baffle 33. When the scraper 26 slides away from the receiving rail 28, the rotating filter plate 32 rotates under the action of the wedge-shaped stop 42, allowing the impurities to pass through the scraper 26 to the side of the scraper 26 closer to the receiving rail 28.

[0055] To lock the drum 5 and prevent it from slipping and rotating under the influence of a heavy object, this embodiment provides a locking structure for the drum 5. Limiting rings 34 are fixedly connected to both ends of the drum 5. A limiting retaining ring 35 is coaxially slidably connected inside the limiting ring 34. An electromagnet 41 is fixedly connected inside the limiting ring 34, and the electromagnet 41 attracts the limiting retaining ring 35. The limiting retaining ring 35 has several limiting holes 36 distributed on a circular axis. A limiting frame 37 is fixedly connected to the support frame 1, and two... A symmetrically distributed limiting pin 38, through the cooperation of the limiting pin 38 and the limiting hole 36, limits the winding drum 5. When the electromagnet 41 is energized, it attracts the limiting retaining ring 35, which is housed within the limiting ring 34, causing the limiting pin 38 and the limiting hole 36 to disengage, thus unlocking the winding drum 5. Simultaneously, when the winding drum 5 stops rotating, the electromagnet 41 is de-energized, the limiting retaining ring 35 resets, and the limiting pin 38 and the limiting hole 36 cooperate to lock the limiting retaining ring 35.

[0056] The limiting pin 38 includes a limiting sleeve 39, and a limiting pin 40 is coaxially slidably connected inside the limiting sleeve 39. The limiting pin 40 and the limiting sleeve 39 are connected by a spring. The elastic force between the limiting pin 40 and the limiting sleeve 39 is less than the elastic force of the spring between the limiting ring 35 and the limiting ring 34, thereby avoiding the problem of jamming between the limiting pin 38 and the limiting ring 35.

[0057] In practical use, the support frame 1 is first fixed to a suitable position. Then, the drive motor 2 and the drive sleeve 6 are connected through the cooperation of the limiting tooth groove 9 and the limiting tooth rod 4. The drive motor 2 is fixed on the support frame 1. At the same time, the oil injection structure and the oil discharge structure are started. The drive motor 2 is started, and the rotation of the drive motor 2 drives the transmission shaft 3 to rotate. The transmission shaft 3 drives the intermediate shaft 8 to rotate through the limiting tooth rod 4 and the limiting tooth groove 9. The rotation of the intermediate shaft 8 drives the drive sleeve 6 to rotate through the planetary gear set. The rotation of the drive sleeve 6 drives the drum to rotate. At the same time, the atomizing nozzle 23 adds lubricating oil into the drive sleeve 6. The lubricating oil lubricates and cools the planetary gear set. After cooling and lubrication, the lubricating oil is discharged from the drive sleeve 6 through the return pipe 14 and enters the collection box 25. The lubricating oil in the collection box 25 is filtered through the filter screen plate 24 and then circulated by the oil pump 16. At the same time, the rotation of the reciprocating screw 27 cleans the impurities on the filter screen plate 24, ensuring the cleanliness of the lubricating oil during circulation.

[0058] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An embedded low thermal resistance transmission device, comprising a support frame (1), a drive motor (2) connected to the support frame (1), wherein the lower end of the support frame (1) is connected to a mounting base, characterized in that, The output end of the drive motor (2) is fixedly connected to a transmission shaft (3). The end of the transmission shaft (3) away from the drive motor (2) is fixedly connected to a limiting gear (4). The limiting gear (4) is slidably connected to an inner gear sleeve (43) on the same axis. The inner gear sleeve (43) is coaxially connected to a drive gear sleeve (44). The support frame (1) is rotatably connected to a drum (5). A lifting cable is wound on the drum (5). The lower end of the lifting cable is fixedly connected to a lifting device. The drum (5) is coaxially fixedly connected to a drive sleeve (6). The drive sleeve (6) is coaxially fixedly connected to a drive gear ring (7). The support frame (1) is rotatably connected to an intermediate shaft (8). The intermediate shaft (8) has a limiting tooth groove (9) that cooperates with the drive sleeve (44). The drive sleeve (44) and the limiting tooth groove (9) cooperate with each other. The intermediate shaft (8) is placed inside the drive sleeve (6). The intermediate shaft (8) is connected to the drive ring (7) through a planetary gear set. The planetary gear set realizes the deceleration transmission between the drive motor (2) and the drive sleeve (6). The drive motor (2) and the support frame (1) are both connected to lifting rings at their upper ends, and the support frame (1) is lifted by the lifting rings. The drive sleeve (6) is filled with lubricating oil. The drive sleeve (6) is connected to an oil injection structure and an oil discharge structure, and the lubricating oil is circulated through the oil injection structure and the oil discharge structure. The oil discharge structure includes a return chamber (10) opened on the inner wall of the drive sleeve (6). The inner wall of the drive sleeve (6) is provided with a plurality of liquid passage holes (11). The lubricating oil inside the drive sleeve (6) flows back to the return chamber (10) through the liquid passage holes (11). The drive sleeve (6) is coaxially fixedly connected to a collection chamber (12) at the end away from the drive motor (2). The collection chamber (12) is connected to the return chamber (10). A conical collector plate (13) is coaxially connected to the end of the collection chamber (12) away from the drive sleeve (6). A return pipe (14) is coaxially rotatably connected to the collection chamber (12). The return pipe (14) is connected to an oil storage tank (15) connected to the support frame (1). An oil pump (16) is installed inside the oil storage tank (15). The oil pump (16) draws the inside of the collection chamber (12) to a negative pressure state. An auxiliary sealing structure is connected between the return pipe (14) and the collection chamber (12). The auxiliary sealing structure includes a connecting sleeve (17) that is coaxially fixedly connected to the collection chamber (12). An annular sealing rail (18) is provided inside the connecting sleeve (17). An adjusting ring (19) is coaxially rotatably connected inside the annular sealing rail (18). The axis of the adjusting ring (19) is coaxially fixedly connected to the return pipe (14). Both ends of the adjustment ring (19) are provided with annular rails (20), and a sealing ring plate (21) is slidably connected coaxially inside the annular rail (20). The wall of the sealing ring plate (21) is in contact with the inner wall of the annular sealing rail (18), and the sealing ring plate (21) is made of elastic material. The oil injection structure includes an injection pipe (22) connected to the oil storage tank (15), the injection pipe (22) connected to the discharge end of the oil pump (16), the injection pipe (22) passing through the axis of the return pipe (14), the injection pipe (22) rotatably connected to the collection chamber (12), the inner diameter of the return pipe (14) being larger than the outer diameter of the injection pipe (22), the injection pipe (22) passing through the collection chamber (12) and placed inside the drive sleeve (6), and an atomizing nozzle (23) fixedly connected to one end of the injection pipe (22) placed in the drive sleeve (6). The lubricating oil inside the oil storage tank (15) is sprayed into the drive sleeve (6) through the injection pipe (22) and the atomizing nozzle (23), thereby achieving lubrication of the planetary gear set. The oil storage tank (15) is fixedly connected to a filter screen plate (24), which filters the lubricating oil. A collection box (25) is fixedly connected to one side of the oil storage tank (15), which collects the filtered impurities. The filter screen plate (24) is slidably connected to a scraper (26) at its upper end. The scraper (26) is threadedly connected to a reciprocating screw (27) rotatably connected inside the oil storage tank (15). The reciprocating screw (27) is externally connected to a drive source. The collection box (25) has a storage rail (28) on the side near the oil storage tank (15). The storage rail (28) has an isolation plate (29) that slides up and down inside. The isolation plate (29) and the storage rail (28) are connected by a spring. The end of the isolation plate (29) near the oil storage tank (15) is inclined. The scraper (26) is provided with several oil passage holes (30). The scraper (26) includes a main frame (31). A rotating filter plate (32) is rotatably connected to the main frame (31). The rotating filter plate (32) and the main frame (31) are connected by a torsion spring. A wedge-shaped stop (42) is fixedly connected to the end of the filter screen plate (24) away from the receiving rail (28). A limit baffle (33) is fixedly connected to the main frame (31).

2. The embedded low thermal resistance transmission device according to claim 1, characterized in that, Both ends of the drum (5) are fixedly connected to limit rings (34). The limit rings (34) are coaxially slidably connected to limit retaining rings (35). An electromagnet (41) is fixedly connected inside the limit rings (34). The limit retaining rings (35) are attracted by the electromagnets (41). The limit retaining rings (35) are provided with several limit holes (36) with equal circular axis distribution. The support frame (1) is fixedly connected to a limit frame (37). The limit frame (37) is fixedly connected to two symmetrically distributed limit pins (38). The drum (5) is limited by the cooperation of the limit pins (38) and the limit holes (36).

3. The embedded low thermal resistance transmission device according to claim 2, characterized in that, The limiting pin (38) includes a limiting sleeve (39), and a limiting pin (40) is coaxially slidably connected inside the limiting sleeve (39). The limiting pin (40) and the limiting sleeve (39) are connected by a spring.

Images