Assembly type planetary gear transmission reduction gearbox

Abstract

The invention discloses an assembly type planetary gear transmission reduction gearbox, and relates to the technical field of mechanical transmission, the assembly type planetary gear transmission reduction gearbox comprises a reduction gearbox, the reduction gearbox comprises a transmission mechanism used for power transmission, a quick release structure connected with the reduction gearbox, a planet carrier assembly connected with the transmission mechanism and a lubricating assembly connected with the reduction gearbox, the quick-release structure comprises a quick-release channel, a square side plate, a quick-release door, an arc-shaped fixing clamping groove, an arc-shaped clamping ring and a connecting cover plate, and has the advantages that three planet gears are sleeved with three planet sleeves of the planet carrier assembly correspondingly, and U-shaped blocks at the front ends of three connecting rods are inserted into fixing inserting grooves; t-shaped rods placed in the placing blocks are inserted into the adaptive grooves, so that the three planet wheels can be limited, and the problem that bolts and chains are used for fixing, assembling and disassembling when a traditional reduction gearbox is assembled, and the bolts are prone to loosening after being used for a long time is solved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical transmission, and in particular to an assembled planetary gear transmission reduction box. Background Art

[0002] In numerous industrial equipment, transportation vehicles and various mechanical equipment, reduction gearboxes, as an important transmission device, are widely used to adjust the speed and increase the torque to meet the power transmission requirements under different working conditions. Traditional planetary gear transmission reducers usually have some shortcomings. Traditionally designed reducers usually rely on bolts and chains for fixing during assembly. The bolts are easy to loosen after long-term use. The assembly process between the components is cumbersome and time-consuming, which is not conducive to large-scale production and rapid assembly. Once a component has a processing error or is damaged, repair and replacement become extremely difficult, increasing maintenance costs and equipment downtime. In addition, usually only the gear transmission parts inside the reducer are lubricated, and the accessories that fix the gears cannot be lubricated in real time, which increases the wear of the accessories and shortens the service life of the accessories. To this end, we propose an assembled planetary gear transmission reduction box. Summary of the invention

[0003] The object of the present invention is to provide an assembled planetary gear transmission reduction box.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an assembled planetary gear transmission reduction box, comprising a reduction box, the reduction box comprising a transmission mechanism for power transmission, a quick-release structure connected to the reduction box, a planet carrier assembly connected to the transmission mechanism, and a lubrication assembly connected to the reduction box; The quick-release structure includes a quick-release channel, a square side panel, a quick-release door, an arc-shaped fixed slot, an arc-shaped snap ring and a connecting cover plate. The two square side panels are respectively arranged on both sides of the inside of the quick-release channel. The two quick-release doors are fixed to the two square side panels by fixing bolts. The arc-shaped fixed slot is opened on the top of the reduction box. The arc-shaped snap ring is clamped in the inside of the arc-shaped fixed slot. The connecting cover plate is arranged on the top of the arc-shaped snap ring. The transmission mechanism includes a planetary gear and a sun gear, wherein the sun gear is meshed with three surrounding planetary gears, and the outer portion of the planetary gear is meshed with an inner gear ring, and the inner gear ring is fixed to the bottom surface of the reduction box; The planetary carrier assembly includes a planetary sleeve, a linkage frame, a C-shaped block, a T-shaped rod, and a placement block. The three planetary sleeves are respectively sleeved on the three planetary gears. The linkage frame is fixedly arranged between the three planetary sleeves. Connecting rods are fixed at positions of the three planetary sleeves close to the outer side of the reduction gearbox. The three C-shaped blocks are fixed at the ends of the connecting rods and are provided with holes for the T-shaped rod to pass through. A fixing block is arranged on one side of the C-shaped block close to the reduction gearbox wall. A fixing slot is opened at a position where the fixing block is close to the C-shaped block. Adaptation slots for the T-shaped rod to pass through are opened inside both the fixing block and the placement block. The three placement blocks are respectively fixed to the right ends of the fixing blocks.

[0005] As a further scheme of the present invention: First drive shafts are respectively arranged inside the three planetary gears in a transmission manner. First connecting shafts are arranged at the right ends of the first drive shafts. External threads are arranged on the outer sides of the first connecting shafts. Transmission bearings are rotatably connected to the first connecting shafts. Internal threads adapted to the external threads are arranged inside the three transmission bearings. A second drive shaft is transmitted inside the sun gear. A shaft sleeve is sleeved on the second drive shaft.

[0006] As a further scheme of the present invention: Limiting sleeves are fixed at the left ends of the three sun gears and planetary gears. A second connecting shaft is arranged at the left end of the second drive shaft.

[0007] As a further scheme of the present invention: The lubrication assembly includes a lubricating oil tank, an oil inlet pipe, a limiting block, an inclined groove, and an oil collecting groove. The lubricating oil tank is arranged on the top surface of the reduction gearbox. Two oil inlet pipes are arranged at the bottom surface of the lubricating oil tank. Pump bodies are arranged on the two oil inlet pipes. The two oil inlet pipes extend to the top surface of the connection cover plate and the inside of the reduction gearbox. The two limiting blocks are fixed inside the connection cover plate and limit the two oil inlet pipes. The inclined groove is opened on the inner bottom surface of the reduction gearbox. The oil collecting groove is slidably connected inside the inclined groove. A first pull ring is fixed to the outside of the oil collecting groove. A liquid level sensor is arranged inside the lubricating oil tank. A scale is arranged on the outer side surface of the lubricating oil tank.

[0008] As a further scheme of the present invention: A base is arranged at the bottom surface of the reduction gearbox. Fixing bolts II are arranged at four corners of the upper end of the base.

[0009] As a further scheme of the present invention: A processor is fixed on the front side of the reduction gearbox. The processor is electrically connected to the transmission mechanism and the liquid level sensor respectively.

[0010] As a further scheme of the present invention: A box door is rotatably connected to the front surface of the reduction gearbox. A second pull ring is arranged on the box door.

[0011] Adopting the above technical scheme, compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention can limit the three planetary gears by inserting the three planetary sleeves of the planetary carrier assembly onto the three planetary gears respectively, inserting the U-shaped blocks at the front ends of the three connecting rods into the interior of the fixing slots, and inserting the T-shaped rods placed in the placement blocks into the interior of the adapter slots, thereby solving the problem that the traditional reduction gearbox relies on bolts and chains for fixing during assembly and is easy to loosen after long-term use; 2. The present invention can solve the problem of repairing and replacing one of the planetary wheels when it is damaged by removing the transmission bearing and the limit sleeve at the planetary wheel, then pulling out the T-shaped rod from the adapter slot of the fixed block, inserting it into the adapter slot of the placement block, and pulling out the T-shaped block from the fixed slot of the fixed block, thereby reducing the maintenance cost; 3. The present invention lubricates the planetary carrier assembly at the bottom of the oil inlet pipe by starting the pump body on the oil inlet pipe, and the lubricating oil drips into the bottom chute of the reduction box for collection, thereby extending the service life of the planetary carrier assembly and avoiding the problem that the existing device only lubricates the gear transmission assembly inside the reduction box, thereby increasing the wear of the accessories and shortening the service life of the accessories.

[0012] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a first stereoscopic schematic diagram of an embodiment of the present invention; Figure 2 is a second stereoscopic schematic diagram of an embodiment of the present invention; Figure 3 It is a schematic diagram of the connection structure of the quick-release channel, the square side plate and the arc-shaped fixed slot in an embodiment of the present invention; Figure 4 It is a three-dimensional schematic diagram of a transmission mechanism in an embodiment of the present invention; Figure 5 It is a schematic diagram of the connection structure of the oil tank, the oil inlet pipe, the limit block, the arc-shaped clamping ring and the connection cover plate in an embodiment of the present invention; Figure 6 A three-dimensional schematic diagram of a planet carrier assembly in an embodiment of the present invention; Figure 7 for Figure 6 Schematic diagram at A in the middle; Figure 8 It is a three-dimensional schematic diagram of a lubrication assembly in an embodiment of the present invention.

[0014] In the figure: 1. reduction box; 2. Transmission mechanism; 21. Planetary gear; 22. Sun gear; 23. First transmission shaft; 24. First connecting shaft; 25. Transmission bearing; 26. Second transmission shaft; 27. Bushing; 28. Limiting sleeve; 29. ​​Second connecting shaft; 3. Quick-release structure; 31. Quick-release channel; 32. Square side panel; 33. Quick-release door; 34. Arc-shaped fixed slot; 35. Arc-shaped snap ring; 36. Connecting cover plate; 4. Processor; 5. Planet carrier assembly; 51. Planet sleeve; 52. Linkage frame; 53. Connecting rod; 54. T-shaped block; 55. Fixed block; 56. Fixed slot; 57. Adapter slot; 58. T-shaped rod; 59. Placement block; 6. Lubrication assembly; 61. Lubricating oil tank; 62. Oil inlet pipe; 63. Limit block; 64. Inclined chute; 65. Oil collecting tank. DETAILED DESCRIPTION

[0015] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0016] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] Please refer to the attached Figure 1 -Attached Figure 8 The present invention discloses an assembled planetary gear transmission reduction box, comprising a reduction box 1, wherein the reduction box 1 comprises a transmission mechanism 2 for power transmission, a quick-release structure 3 connected to the reduction box 1, a planet carrier assembly 5 connected to the transmission mechanism 2, and a lubrication assembly 6 connected to the reduction box 1; The quick-release structure 3 includes a quick-release channel 31, a square side plate 32, a quick-release door 33, an arc-shaped fixed slot 34, an arc-shaped snap ring 35 and a connecting cover plate 36. The two square side plates 32 are respectively arranged on both sides of the inside of the quick-release channel 31. The two quick-release doors 33 are fixed to the two square side plates 32 by fixing bolts. The arc-shaped fixed slot 34 is opened on the top of the reduction box 1. The arc-shaped snap ring 35 is snapped into the inside of the arc-shaped fixed slot 34. The connecting cover plate 36 is arranged on the top of the arc-shaped snap ring 35. The transmission mechanism 2 includes a planetary gear 21 and a sun gear 22. The sun gear 22 is meshed with the three surrounding planetary gears 21. At the same time, the outer portion of the planetary gear 21 is meshed with an inner gear ring, which is fixed to the bottom surface of the reduction box 1. The planet carrier assembly 5 includes a planet sleeve 51, a linkage frame 52, a C-shaped block 54, a T-shaped rod 58, and a placement block 59. The three planet sleeves 51 are respectively sleeved on the three planet gears 21. The linkage frame 52 is fixedly arranged between the three planet sleeves 51. Connecting rods 53 are fixedly arranged at positions of the three planet sleeves 51 close to the outside of the reduction gearbox 1. Three C-shaped blocks 54 are fixed at the ends of the connecting rods 53 and are provided with holes for the T-shaped rod 58 to pass through. A fixed block 55 is arranged on one side of the C-shaped block 54 close to the wall of the reduction gearbox 1. A fixed slot 56 is provided in the fixed block 55 close to the C-shaped block 54. Adaptation slots 57 for the T-shaped rod 58 to pass through are provided inside both the fixed block 55 and the placement block 59. The three placement blocks 59 are respectively fixed to the right ends of the fixed blocks 55; In an embodiment of the present invention: First transmission shafts 23 are respectively arranged inside the three planet gears 21 in a transmission manner. Second connecting shafts 24 are arranged at the right ends of the first transmission shafts 23. External threads are arranged on the external sides of the second connecting shafts 24. Transmission bearings 25 are rotatably connected to the second connecting shafts 24. Internal threads adapted to the external threads are arranged inside the three transmission bearings 25. A second transmission shaft 26 is arranged inside the sun gear 22 in a transmission manner. A shaft sleeve 27 is sleeved on the second transmission shaft 26; In an embodiment of the present invention: Limiting sleeves 28 are respectively fixed at the left ends of the three sun gears 22 and the planet gears 21. A second connecting shaft 29 is arranged at the left end of the second transmission shaft 26; In an embodiment of the present invention: The lubrication assembly 6 includes a lubricating oil tank 61, an oil inlet pipe 62, a limiting block 63, an inclined groove 64, and an oil collecting groove 65. The lubricating oil tank 61 is arranged on the top surface of the reduction gearbox 1. Two oil inlet pipes 62 are arranged at the bottom surface of the lubricating oil tank 61 close to the two planet carrier assemblies 5. Pump bodies are arranged on the two oil inlet pipes 62. The two oil inlet pipes 62 extend to the top surface of the connecting cover plate 36 and the inside of the reduction gearbox 1. Two limiting blocks 63 are fixed inside the connecting cover plate 36 and limit the two oil inlet pipes 62. The inclined groove 64 is arranged on the inner bottom surface of the reduction gearbox 1. The oil collecting groove 65 is slidably connected inside the inclined groove 64. A first pull ring is fixed outside the oil collecting groove 65. A liquid level sensor is arranged inside the lubricating oil tank 61. A scale is arranged on the outer side surface of the lubricating oil tank 61; In an embodiment of the present invention: A base is arranged at the bottom surface of the reduction gearbox 1. Fixed bolts II are arranged at four corners of the upper end of the base; In an embodiment of the present invention: A processor 4 is fixed on the front side of the reduction gearbox 1. The processor 4 is electrically connected to the transmission mechanism 2 and the liquid level sensor respectively; In an embodiment of the present invention: A box door is rotatably arranged on the front surface of the reduction gearbox 1 through a rotating column. A second pull ring is arranged on the box door; Example 1. Please refer to the attached Figure 1 - attached Figure 8, by providing a scale on the outer side of the lubricating oil tank 61 and a liquid level sensor inside the lubricating oil tank 61, when the liquid level of the lubricating oil inside the lubricating oil tank 61 drops to the liquid level set by the processor 4, the liquid level sensor automatically transmits a command to the processor 4, and the processor 4 is connected to the user end, and promptly reminds the user to add oil to the lubricating oil tank 61, and the lubricating oil inside the lubricating oil tank 61 can be added regularly; Specifically, through the setting of the liquid level sensor and the scale, the user can add lubricating oil to the inside of the lubricating oil tank 61 in time, and cooperate with the setting of the inclined groove 64 and the oil collecting groove 65 set inside the reduction box 1 to collect the lubricating oil, so as to lubricate the internal accessories of the planetary carrier assembly 5 in real time, thereby extending the service life of the planetary carrier assembly 5.

[0018] Example 1, please refer to the attached Figure 1 -Attached Figure 8 , through the two quick-release doors 33 in the quick-release structure 3, in conjunction with the setting of the box door and the second pull ring, when disassembly is required, first rotate the transmission bearings 25 on the three planetary gears 21 and the shaft sleeves 27 on the sun gear 22 counterclockwise out of the first transmission shaft 23 and the second transmission shaft 26, and then remove the fixing bolts 1 on both sides of the quick-release door 33 and the quick-release doors 33 set on both sides of the reduction box 1 from the square side plate 32. At this time, open the box door through the second pull ring, turn out the limit sleeve 28 and the second connecting shaft 29, and the sun gear 22 and the three planetary gears 21 can be disassembled; Specifically, the two quick-release doors 33 provided in the quick-release structure 3 cooperate with the box door and the pull ring 2 to facilitate the quick disassembly of the three planetary gears 21 and the sun gear 22 inside the reduction box 1, so as to facilitate the maintenance of the reduction box 1 at any time. Specifically, the three planetary sleeves 51 of the planetary carrier assembly 5 are respectively inserted into the three planetary gears 21, the U-shaped blocks 54 at the front ends of the three connecting rods 53 are inserted into the interior of the fixing slots 56, and the T-shaped rods 58 placed in the placement blocks 59 are inserted into the interior of the adapting slots 57 to limit the three planetary gears 21; Specifically, when a planetary gear 21 inside the reduction gear box 1 is damaged and needs to be quickly disassembled, it is only necessary to remove the transmission bearing 25 and the limit sleeve 28 at the damaged planetary gear 21, pull out the T-shaped rod 58 at the damaged part from the adapter groove 57 of the fixed block 55, insert it into the adapter groove 57 of the placement block 59, and then pull the T-shaped block 54 out of the fixed slot 56 of the fixed block 55 to remove it, thereby reducing maintenance costs.

[0019] Specifically, before lubricating, the inside of the lubricating oil tank 61 needs to be filled to 80%. After the lubricating oil is added, the pump body on the oil inlet pipe 62 is started to lubricate the planetary carrier assembly 5 at the bottom of the oil inlet pipe 62. The lubricating oil drips into the bottom chute 64 of the reduction gearbox 1 and is collected, thereby extending the service life of the planetary carrier assembly 5.

[0020] Working principle: First, when the sun gear 22 inside the inner gear ring rotates, the sun gear 22 and the three surrounding planetary gears 21 are meshed with each other, driving the three planetary gears 21 to rotate around the first transmission shaft 23. At the same time, since the three planetary gears 21 are meshed with the inner gear ring and the inner gear ring is fixed on the bottom surface of the reduction box 1, the three sun gears 22 rotate around the sun gear 22 while revolving. The planetary sleeves 51, linkage frame 52 and connecting rods 53 in the planetary carrier assembly 5 limit the three planetary gears 21, driving the first transmission shaft 23 and the first connecting shaft 24 to rotate. When it is necessary to assemble the planetary gears 21, sun gear 22 and planetary carrier assembly 5 inside the reduction box 1, first open the box door and the two quick-release doors 33, put the three planetary gears 21 and one sun gear 22 into the inner gear ring to mesh with each other, then insert the first transmission shaft 23, the first connecting shaft 24, the second transmission shaft 26 and the second connecting shaft 29 into the interior of the planetary gears 21 and the sun gear 22 respectively, install the limiting sleeves 28 respectively, and then insert the three planetary sleeves 51 of the planetary carrier assembly 5 into the three planetary gears 21 respectively, insert the T-shaped blocks 54 at the front ends of the three connecting rods 53 into the interior of the fixed slots 56, and insert the T-shaped rods 58 placed in the placement blocks 59 into the interior of the adapter grooves 57 to limit the three planetary gears 21, and then tighten the two quick-release doors 33 by fixing bolts 1, and finally install the transmission bearing 25 to achieve the complete installation of the sun gear 22, planetary gears 21 and planetary carrier assembly 5 inside the reduction box 1; When it is necessary to disassemble the planetary gear 21, sun gear 22 and planetary carrier assembly 5 inside the reduction box 1, first rotate the transmission bearing 25 on the three planetary gears 21 and the shaft sleeve 27 on the sun gear 22 counterclockwise out of the first transmission shaft 23 and the second transmission shaft 26, then remove the fixing bolts 1 on both sides of the quick-release door 33 and the quick-release door 33 set on both sides of the reduction box 1 from the square side plate 32, open the box door through the pull ring 2, turn out the limit sleeve 28 and the second connecting shaft 29, and then remove the first transmission shaft 23, the first connecting shaft 24, the second transmission shaft 26 and the second connecting shaft 29 from the sun gear 22 and the planetary gear 21 respectively. At this time, the three T-shaped rods 58 are respectively pulled out from the adapter groove 57 of the fixing block 55, inserted into the adapter groove 57 of the placing block 59, and then the T-shaped block 54 is pulled out from the fixing slot 56 of the fixing block 55, and the complete disassembly of the planetary gear 21, the sun gear 22 and the planetary carrier assembly 5 is completed; When a planetary gear 21 inside the reduction gear box 1 is damaged and needs to be quickly disassembled, it is only necessary to remove the transmission bearing 25 and the limiting sleeve 28 at the damaged planetary gear 21, pull out the T-shaped rod 58 at the damaged part from the adapting groove 57 of the fixing block 55, insert it into the adapting groove 57 of the placing block 59, and then pull the T-shaped block 54 out of the fixing slot 56 of the fixing block 55 to remove it; When the planetary carrier assembly 5 inside the reduction box 1 needs to be lubricated, the inside of the lubricating oil tank 61 needs to be filled to 80% before lubrication. After the lubricating oil is added, the pump body on the oil inlet pipe 62 is started to lubricate the planetary carrier assembly 5 at the bottom of the oil inlet pipe 62, and the lubricating oil drips into the bottom chute 64 of the reduction box 1 for collection, thereby extending the service life of the planetary carrier assembly 5 and avoiding the problem that the existing device only lubricates the gear transmission assembly inside the reduction box 1; After lubrication for a period of time, when the lubricating oil in the lubricating oil tank 61 is less than 20%, the liquid level sensor automatically transmits a command to the processor 4, and the processor 4 is connected to the user end to promptly remind the user to add oil to the lubricating oil tank 61. The user can add lubricating oil to the lubricating oil tank 61 at a regular time, and at the same time, through the setting of the scale, the user can add lubricating oil to the lubricating oil tank 61 in time; When the lubricating oil tank 61 needs to be cleaned, the box door only needs to be opened through the pull ring 2, and the oil collecting tank 65 can be pulled out of the reduction box 1 through the pull ring 1 to clean the lubricating oil tank 61; At this point, the entire process ends.

[0021] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0023] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0024] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.

Claims

1. An assembled planetary gear transmission reduction box, comprising a reduction box (1), characterized in that: The speed reducer (1) includes a transmission mechanism (2) for power transmission, a quick-release structure (3) connected to the speed reducer (1), a planet carrier assembly (5) connected to the transmission mechanism (2), and a lubrication assembly (6) connected to the speed reducer (1); The quick-release structure (3) includes a quick-release channel (31), square side plates (32), a quick-release door (33), an arc-shaped fixed card slot (34), an arc-shaped snap ring (35), and a connection cover plate (36). The two square side plates (32) are respectively arranged on both inner sides of the quick-release channel (31). The two quick-release doors (33) are both fixed to the two square side plates (32) by fixing bolts I. The arc-shaped fixed card slot (34) is opened at the top of the speed reducer (1). The arc-shaped snap ring (35) is clamped inside the arc-shaped fixed card slot (34). The connection cover plate (36) is arranged at the top end of the arc-shaped snap ring (35); The transmission mechanism (2) includes planet gears (21) and a sun gear (22). The sun gear (22) meshes with three surrounding planet gears (21). An internal gear ring is meshed outside the planet gears (21). The internal gear ring is fixed to the bottom surface of the speed reducer (1); The planet carrier assembly (5) includes planet sleeves (51), a linkage frame (52), U-shaped blocks (54), T-shaped rods (58), and placement blocks (59). The three planet sleeves (51) are respectively sleeved on the three planet gears (21). The linkage frame (52) is arranged and fixed between the three planet sleeves (51). Connecting rods (53) are fixed at positions of the three planet sleeves (51) close to the outer side of the speed reducer (1). The three U-shaped blocks (54) are fixed at the ends of the connecting rods (53) and are provided with holes for the T-shaped rods (58) to pass through. A fixed block (55) is arranged on one side of the U-shaped block (54) close to the wall of the speed reducer (1). A fixed slot (56) is opened at the position of the fixed block (55) close to the U-shaped block (54). Adaptation slots (57) for the T-shaped rods (58) to pass through are opened in both the fixed block (55) and the placement blocks (59). The three placement blocks (59) are respectively fixed to the right ends of the fixed blocks (55).

2. The assembled planetary gear transmission reduction box according to claim 1, characterized in that: First transmission shafts (23) are respectively arranged inside the three planet gears (21). First connection shafts (24) are arranged at the right ends of the first transmission shafts (23). External threads are arranged on the external sides of the first connection shafts (24). Transmission bearings (25) are rotationally connected to the first connection shafts (24). Internal threads adapted to the external threads are arranged inside the three transmission bearings (25). A second transmission shaft (26) is transmitted inside the sun gear (22). A shaft sleeve (27) is sleeved on the second transmission shaft (26).

3. The assembled planetary gear transmission reduction box according to claim 2, characterized in that: Limit sleeves (28) are fixed to the left ends of the three sun gears (22) and planet gears (21). A second connection shaft (29) is arranged at the left end of the second transmission shaft (26).

4. The assembled planetary gear transmission reduction box according to claim 1, characterized in that: The lubrication assembly (6) comprises a lubricating oil tank (61), an oil inlet pipe (62), a stopper (63), an inclined groove (64) and an oil collecting groove (65). The lubricating oil tank (61) is arranged on the top surface of the reduction box (1). Two oil inlet pipes (62) are arranged on the bottom surface of the lubricating oil tank (61). A pump body is arranged on the two oil inlet pipes (62). The two oil inlet pipes (62) extend to the top surface of the connecting cover plate (36) and the inside of the reduction box (1). The two stopper blocks (63) are fixed inside the connecting cover plate (36) and limit the two oil inlet pipes (62). The inclined groove (64) is opened on the inner bottom surface of the reduction box (1). The oil collecting groove (65) is slidably connected to the inclined groove (64). A pull ring 1 is fixed to the outside of the oil collecting groove (65). A liquid level sensor is arranged inside the lubricating oil tank (61). A scale is arranged on the outer side of the lubricating oil tank (61).

5. The assembled planetary gear transmission reduction box according to claim 4, characterized in that: The bottom surface of the reduction box (1) is provided with a base, and the four corners of the upper end of the base are provided with two fixing bolts.

6. The assembled planetary gear transmission reduction box according to claim 5, characterized in that: A processor (4) is fixed to the front side of the reduction box (1), and the processor (4) is electrically connected to the transmission mechanism (2) and the liquid level sensor respectively.

7. The assembled planetary gear transmission reduction box according to claim 6, characterized in that: The front side of the reduction box (1) is rotatably connected to a box door, and a second pull ring is provided on the box door.

Images