Adjustable limiting door opening motor

Abstract

The invention provides an adjustable limiting door opening motor, and relates to the field of door opening motors. The device comprises a motor and a reduction gearbox, a transmission assembly is arranged in the reduction gearbox, the motor is installed on the reduction gearbox, a driving assembly is arranged between an output shaft of the motor and the transmission assembly, and a hard limiting assembly is arranged on the transmission assembly. The device has the effect that collision and damage are not prone to occurring.

Description

Technical Field

[0001] The present application relates to the field of door opening motors, and in particular to an adjustable limit door opening motor. Background Art

[0002] A door opening motor is an electric motor used in automatic door systems. Its main function is to drive the door to open and close by generating rotational torque. Door opening motors also have the advantages of energy saving, environmental protection, low noise, and long life. They are widely used in commercial, residential, industrial and other fields.

[0003] At present, the traditional door opening motor is usually composed of components such as a motor body, a reducer and a controller.

[0004] However, the door opening motor in the above technology lacks hard limit protection. Once the door is driven beyond the predetermined movement range, it is easy to cause a collision or even damage. Summary of the invention

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides an adjustable limit door opening motor.

[0006] The present application provides an adjustable limit door opening motor, which adopts the following technical solution: An adjustable limit door opening motor comprises: a motor and a reduction box, wherein a transmission assembly is arranged in the reduction box, the motor is mounted on the reduction box, a drive assembly is arranged between the output shaft of the motor and the transmission assembly, and a hard limit assembly is arranged on the transmission assembly.

[0007] By adopting the above technical solution, the hard limit assembly can prevent the driven door from exceeding the predetermined movement range, thereby making it less likely to collide or even be damaged, and can protect personnel.

[0008] Optionally, the driving assembly includes: a driving rod, a driving gear and a rotating gear, the driving rod is coaxially connected to the output shaft of the motor, and the driving gear is coaxially sleeved on the driving rod, the rotating gear is coaxially fixed to the transmission assembly, and the driving gear is meshed with the rotating gear.

[0009] By adopting the above technical solution, the motor is started to drive the driving rod to drive the driving gear to rotate; the rotation of the driving gear can drive the rotating gear to rotate, so that the transmission component can operate quickly.

[0010] Optionally, the transmission assembly includes: a primary rod, a primary driving gear, a primary driven gear, a secondary rod, a secondary driving gear, a secondary driven gear, a tertiary rod, a tertiary driving gear, a tertiary driven gear, a quadruple rod, a quadruple driving gear, a quadruple driven gear and a quintuple rod, wherein the primary rod, the secondary rod, the tertiary rod, the quadruple rod and the quintuple rod are all rotatably mounted in the reduction box, the rotating gear and the primary driving gear are coaxially sleeved on the primary rod, the primary driven gear and the secondary driving gear are coaxially sleeved on the secondary rod, and the The secondary driven gear and the third driving gear are both coaxially sleeved on the third rod, the third driven gear and the fourth driving gear are both coaxially sleeved on the fourth rod, the fourth driven gear is coaxially sleeved on the fifth rod, and the first driving gear is meshed with the first driven gear, the second driving gear is meshed with the second driven gear, the third driving gear is meshed with the third driven gear, the fourth driving gear is meshed with the fourth driven gear, and the hard limit assembly is arranged between the fifth rod and the fourth driven gear.

[0011] By adopting the above technical solution, when the rotating gear rotates, the rotating gear can sequentially drive the rotation of the primary rod, the primary driving gear, the primary driven gear, the secondary rod, the secondary driving gear, the secondary driven gear, the tertiary rod, the tertiary driving gear, the tertiary driven gear, the tertiary driven gear, the quaternary rod, the quaternary driving gear, the quaternary driven gear and the quintuple rod, thereby ultimately driving the door shaft to move to open or close the door.

[0012] Optionally, the hard limit assembly includes: a collar, a block and a stop column, the collar is sleeved on the five-stage rod, the block is fixed on the collar, and the stop column is fixed on the four-stage driven gear.

[0013] By adopting the above technical solution, when the fourth-stage driven gear drives the fifth-stage rod to rotate, the stop column on the fourth-stage driven gear will abut against the stop block, thereby forming a limit so that the fourth-stage driven gear will no longer continue to rotate, thereby preventing the driving door from exceeding the predetermined movement range.

[0014] Optionally, an adjustment assembly is provided between the collar and the reduction box, and the adjustment assembly includes: a worm wheel, a worm and an end cover, the worm wheel is rotatably sleeved on the five-stage rod, and the collar is fixedly connected to the worm wheel, the worm is rotatably installed on the reduction box, and the worm is fixedly connected to the end cover, and the worm is meshed with the worm wheel.

[0015] By adopting the above technical solution, during adjustment, the worm is rotated to drive the worm wheel to drive the ring to rotate, thereby changing the initial position of the block to change the rotation stroke of the four-stage driven gear, thereby improving applicability.

[0016] Optionally, a maintenance component is arranged between the reduction box and the motor, and the maintenance component includes: a pushing part, a connecting part, a moving part and a maintenance part, the pushing part includes: a clamping rod, a pushing bearing, a fixing plate, a rotating rod, a first gear, a second gear and an electric push rod, the driving rod includes: a front rod and a rear rod, the front rod is coaxially fixed with the output shaft of the motor, and the first gear is coaxially sleeved on the front rod, a clamping slot is provided on the front rod, the driving gear is coaxially sleeved on the rear rod, one end of the clamping rod is fixed to the rear rod, and the other end is arranged in the clamping slot, the pushing bearing is fixedly sleeved on the rear rod, the electric push rod is fixed in the reduction box, and the output shaft of the electric push rod is fixed to the outer ring of the pushing bearing, the fixing plate is fixed on the outer ring of the pushing bearing, the rotating rod is rotatably installed on the fixing plate, the second gear is coaxially sleeved on the rotating rod, the connecting part is arranged on the rotating rod, the moving part is arranged in the reduction box, and the maintenance part is arranged between the moving part and the reduction box.

[0017] By adopting the above technical solution, the maintenance component can regularly maintain all the gears in the reduction box to extend the service life of all the gears in the reduction box and improve the smoothness of the transmission.

[0018] Optionally, the connecting part includes: a connecting rod and a connecting spring, the rotating rod is provided with a receiving hole, the connecting rod is arranged in the receiving hole, the connecting spring is fixed between the connecting rod and the bottom of the receiving hole, and the connecting rod is provided with a guide surface.

[0019] By adopting the above technical solution, when the rotating rod moves up to the point where the first gear meshes with the second gear, the connecting rod connects the rotating rod and the moving part, so that the rotating rod can drive the moving part to operate, so that the moving part can drive the maintenance part to maintain all the gears.

[0020] Optionally, the moving part includes: a linkage rod, a screw rod, a guide rod, a movable plate and a transmission belt, the screw rod is rotatably installed in the reduction box, the guide rod is fixed in the reduction box, the movable plate is sleeved between the screw rod and the guide rod, and the screw rod is threadedly matched with the movable plate, the transmission belt is arranged between the linkage rod and the screw rod, the linkage rod is provided with a connecting hole for inserting the connecting rod, and the maintenance part is arranged between the movable plate and the reduction box.

[0021] By adopting the above technical solution, when the screw rod rotates, the movable plate can move on the guide rod and along the length direction of the guide rod.

[0022] Optionally, the maintenance part includes: an oil storage tank, an oil pump, a delivery pipe, an oil injection pipe and an injection head, the oil storage tank is installed on the reduction gearbox, the oil pump is installed on the oil storage tank and connected with the oil storage tank, the oil injection pipe is rotatably installed on the movable plate, and the injection head is arranged on the oil injection pipe, one end of the delivery pipe is connected with the oil injection pipe, and the other end is connected to the oil pump.

[0023] By adopting the above technical solution, when the movable plate moves, the oil pump is started to pump the lubricating oil into the oil injection pipe, and the injection head is used to spray the lubricating oil onto all the gears in the reduction box, thereby achieving the maintenance effect.

[0024] Optionally, the maintenance component also includes: a swinging part, the swinging part includes: a fixed rack, a movable gear, a slider, a connecting rod, a pull rope and a return spring, the fixed rack is fixed in the reduction gear box, the movable gear is rotatably mounted on the movable plate, and the movable gear is meshed with the fixed rack, the slider is slidably arranged on the movable plate, one end of the connecting rod is rotatably mounted on the movable gear, and the other end is rotatably mounted on the slider, one end of the pull rope is fixed to the slider, and the other end is fixed to the fuel injection pipe, and the return spring is fixed between the fuel injection pipe and the movable plate.

[0025] By adopting the above technical solution, when the slider moves upward, the reset spring resets the oil injection pipe, thereby driving the oil injection pipe to swing to increase the injection range of the injection head to ensure that all gears can be lubricated by the lubricating oil.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The hard limit assembly can prevent the driven door from exceeding the predetermined range of motion, thereby preventing collision or even damage, and can also protect personnel.

[0027] 2. When the fourth-stage driven gear drives the fifth-stage rod to rotate, the stop column on the fourth-stage driven gear will abut against the stop block, thereby forming a limit so that the fourth-stage driven gear will no longer continue to rotate, thereby preventing the drive door from exceeding the predetermined movement range.

[0028] 3. During adjustment, rotate the worm to drive the worm wheel to drive the sleeve ring to rotate, thereby changing the initial position of the block to change the rotation stroke of the four-stage driven gear, thereby improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a structural schematic diagram according to Embodiment 1 of the present application; Figure 2 yes Figure 1 A schematic structural diagram of the interior of the reduction gearbox; Figure 3 is a structural schematic diagram according to Embodiment 2 of the present application; Figure 4 is along Figure 3 A schematic cross-sectional view taken along the cutting line AA in FIG. Figure 5 yes Figure 4 A schematic structural diagram of the interior of the reduction gearbox; Figure 6 yes Figure 5 Schematic partial enlarged view of part B.

[0030] In the figure: 1. reduction box; 11. motor; 2. swing part; 21. fixed rack; 22. moving gear; 23. slider; 24. connecting rod; 25. pulling rope; 26. return spring; 3. driving assembly; 31. driving rod; 311. front rod; 3111. slot; 312. rear rod; 32. driving gear; 33. rotating gear; 4. transmission assembly; 41. primary rod; 42. primary driving gear; 43. primary driven gear; 44. secondary rod; 45. secondary driving gear; 46. secondary driven gear; 47. tertiary rod; 48. tertiary driving gear; 49. tertiary driven gear; 40. quaternary rod; 401. quaternary driving gear; 402. quaternary driven gear; 403. quintuple rod; 5. Hard limit assembly; 51. Ring; 52. Block; 53. Block column; 6. Adjustment assembly; 61. Worm gear; 62. Worm; 63. End cover; 7. Pushing part; 71. Clamping rod; 72. Pushing bearing; 73. Fixing plate; 74. Rotating rod; 741. Accommodating hole; 75. First gear; 76. Second gear; 77. Electric push rod; 8. Connecting part; 81. Connecting rod; 811. Guide surface; 82. Connecting spring; 9. Moving part; 91. Linking rod; 911. Connecting hole; 92. Screw rod; 93. Guide rod; 94. Moving plate; 95. Transmission belt; 10. Maintenance part; 101. Oil storage tank; 102. Oil pump; 103. Delivery pipe; 104. Oil injection pipe; 105. Injection head. DETAILED DESCRIPTION

[0031] The present application provides an adjustable limit door opening motor.

[0032] Embodiment 1: See also Figure 1 and Figure 2A motor for opening a door with an adjustable limit position comprises: a motor 11 and a reduction box 1. All electrical equipment involved in the embodiment of the present application can be controlled by a controller; a transmission assembly 4 is arranged in the reduction box 1, the motor 11 is mounted on the outer wall of the reduction box 1, and a driving assembly 3 is arranged between the output shaft of the motor 11 and the transmission assembly 4. When used, the output end of the transmission assembly 4 can be connected to the door shaft; then the motor 11 is started to drive the driving assembly 3 to drive the transmission assembly 4 to operate, thereby opening or closing the door.

[0033] See also Figure 2 The driving assembly 3 includes: a driving rod 31, a driving gear 32 and a rotating gear 33. The driving rod 31 is coaxially connected to the output shaft of the motor 11, and the driving gear 32 is coaxially sleeved on the driving rod 31. The rotating gear 33 is coaxially fixed to the transmission assembly 4, and the driving gear 32 is meshed with the rotating gear 33. When used, the motor 11 is started to drive the driving rod 31 to drive the driving gear 32 to rotate; the rotation of the driving gear 32 can drive the rotating gear 33 to rotate, so that the transmission assembly 4 can run quickly.

[0034] See also Figure 2 The transmission assembly 4 includes: a primary rod 41, a primary driving gear 42, a primary driven gear 43, a secondary rod 44, a secondary driving gear 45, a secondary driven gear 46, a tertiary rod 47, a tertiary driving gear 48, a tertiary driven gear 49, a quadruple rod 40, a quadruple driving gear 401, a quadruple driven gear 402 and a fifth rod 403. The primary rod 41, the secondary rod 44, the tertiary rod 47, the quadruple rod 40 and the fifth rod 403 are all rotatably installed in the reduction box 1 and arranged along the length direction of the reduction box 1. When used, the fifth rod 403 can be connected to the door shaft.

[0035] See also Figure 2 The rotating gear 33 and the first driving gear 42 are coaxially sleeved on the first rod 41; the first driven gear 43 and the second driving gear 45 are coaxially sleeved on the second rod 44, and the first driving gear is meshed with the first driven gear 43. The second driven gear 46 and the third driving gear 48 are coaxially sleeved on the third rod 47, and the second driving gear 45 is meshed with the second driven gear 46. The third driven gear 49 and the fourth driving gear 401 are coaxially sleeved on the fourth rod 40, and the third driving gear 48 is meshed with the third driven gear 49.

[0036] See also Figure 2The fourth-stage driven gear 402 is coaxially sleeved on the fifth-stage rod 403, and the fourth-stage driving gear 401 is meshed with the fourth-stage driven gear 402. When the rotating gear 33 rotates, the rotating gear 33 can sequentially drive the first-stage rod 41, the first-stage driving gear 42, the first-stage driven gear 43, the second-stage rod 44, the second-stage driving gear 45, the second-stage driven gear 46, the third-stage rod 47, the third-stage driving gear 48, the third-stage driven gear 49, the fourth-stage rod 40, the fourth-stage driving gear 401, the fourth-stage driven gear 402 and the fifth-stage rod 403 to rotate, thereby finally driving the door shaft to move to open or close the door.

[0037] See also Figure 2 A hard limit assembly 5 is provided on the five-stage rod 403, and the hard limit assembly 5 can prevent the driving door from exceeding a predetermined range of motion, thereby preventing collision or even damage from occurring and protecting personnel.

[0038] See also Figure 2 The hard limit assembly 5 includes: a collar 51, a stopper 52 and a stopper column 53. The collar 51 is sleeved on the five-stage rod 403, and the stopper 52 is integrally formed on the collar 51. The stopper column 53 is fixed on the top wall of the four-stage driven gear 402. When the four-stage driven gear 402 drives the five-stage rod 403 to rotate, the stopper column 53 on the four-stage driven gear 402 will abut against the stopper 52, thereby forming a limit position, so that the four-stage driven gear 402 will no longer continue to rotate, thereby preventing the driving door from exceeding the predetermined movement range.

[0039] See also Figure 1 and Figure 2 Furthermore, an adjustment assembly 6 is provided between the collar 51 and the reduction box 1, and the adjustment assembly 6 includes: a worm wheel 61, a worm 62 and an end cover 63. The worm wheel 61 is rotatably sleeved on the five-stage rod 403 through a common bearing, and the collar 51 is fixedly connected to the worm wheel 61. The worm 62 is rotatably mounted on the inner side wall of the reduction box 1 and is arranged horizontally. The worm 62 is meshed with the worm wheel 61. When adjusting, the worm 62 is rotated to drive the worm wheel 61 to drive the collar 51 to rotate, thereby changing the initial position of the block 52 to change the rotation stroke of the four-stage driven gear 402, thereby improving applicability.

[0040] The working principle of the first embodiment is as follows: when in use, the motor 11 is started to drive the driving rod 31 to drive the driving gear 32 to rotate; the rotation of the driving gear 32 can drive the rotating gear 33 to rotate; the rotating gear 33 can sequentially drive the primary rod 41, the primary driving gear 42, the primary driven gear 43, the secondary rod 44, the secondary driving gear 45, the secondary driven gear 46, the tertiary rod 47, the tertiary driving gear 48, the tertiary driven gear 49, the quadruple rod 40, the quadruple driving gear 401, the quadruple driven gear 402 and the fifth rod 403 to rotate, thereby finally driving the door shaft to move to open or close the door.

[0041] Embodiment 2: See also Figure 3 and Figure 4 The difference between this embodiment and the first embodiment is that a maintenance component is provided between the reduction box 1 and the motor 11, and the maintenance component can regularly maintain all the gears in the reduction box 1 to extend the service life of all the gears in the reduction box 1 and improve the smoothness of the transmission. The size of the reduction box 1 in this embodiment is adjusted to be larger than the size of the reduction box 1 in the first embodiment in order to accommodate the maintenance component.

[0042] See also Figure 4 , Figure 5 and Figure 6 The maintenance component includes: a pushing part 7, a connecting part 8, a moving part 9 and a maintenance part 10.

[0043] See also Figure 4 The pushing portion 7 includes: a clamping rod 71, a pushing bearing 72, a fixing plate 73, a rotating rod 74, a first gear 75, a second gear 76 and an electric push rod 77. In this embodiment, the driving rod 31 includes: a front rod 311 and a rear rod 312. The front rod 311 is coaxially fixedly connected to the output shaft of the motor 11, and a square clamping groove 3111 is opened on the top wall of the front rod 311; the driving gear 32 is coaxially sleeved on the rear rod 312, one end of the clamping rod 71 is fixed to the rear rod 312, and the other end is arranged in the clamping groove 3111, and the motor 11 is started to drive the front rod 311 to drive the rear rod 312 to rotate.

[0044] See also Figure 4 , the push bearing 72 is fixedly sleeved on the rear rod 312; the electric push rod 77 is fixedly installed on the inner top wall of the reduction box 1, and the output shaft of the electric push rod 77 is fixedly connected to the outer ring of the push bearing 72. The electric push rod 77 is started to pull the rear rod 312 to move upward, so that the rear rod 312 and the front rod 311 can be separated, that is, the driving gear 32 and the rotating gear 33 can be separated.

[0045] See also Figure 4 The fixed plate 73 is fixed on the outer ring of the pushing bearing 72, and the rotating rod 74 is rotatably installed on the side wall of the fixed plate 73. The rotating rod 74 is horizontally arranged and perpendicular to the fixed plate 73; the first gear 75 is coaxially sleeved on the front rod 311, and the second gear 76 is coaxially sleeved on the rotating rod 74. After the rear rod 312 is pulled up, the second gear 76 moves up until the second gear 76 is meshed with the first gear 75, so that the front rod 311 can drive the first gear 75 to drive the second gear 76 to rotate, and then the second gear 76 can drive the rotating rod 74 to rotate.

[0046] See also Figure 4The connecting part 8 includes: a connecting rod 81 and a connecting spring 82. An accommodating hole 741 is provided at one end of the rotating rod 74 away from the fixing plate 73. One end of the connecting rod 81 is disposed in the accommodating hole 741, and the other end extends out of the accommodating hole 741. The connecting spring 82 is fixed between the connecting rod 81 and the bottom of the accommodating hole 741, and is used to push the connecting rod 81 to extend out of the accommodating hole 741.

[0047] See also Figure 4 The top wall and the bottom wall of the connecting rod 81 at one end away from the connecting spring 82 are both provided with an inclined guide surface 811, and the guide surface 811 is located in the accommodating hole 741 at one end close to the connecting spring 82. When the rotating rod 74 moves up to the point where the first gear 75 is meshed with the second gear 76, the connecting rod 81 connects the rotating rod 74 with the moving part 9, so that the rotating rod 74 can drive the moving part 9 to operate, so that the moving part 9 can drive the maintenance part 10 to maintain all the gears.

[0048] See also Figure 4 , Figure 5 and Figure 6 The moving part 9 includes: a linkage rod 91, a screw rod 92, a guide rod 93, a moving plate 94 and a transmission belt 95. The linkage rod 91 and the screw rod 92 are both rotatably mounted on the inner side wall of the reduction box 1 and are arranged horizontally; the transmission belt 95 is arranged between the linkage rod 91 and the screw rod 92. A connecting hole 911 for inserting the connecting rod 81 is provided at one end of the linkage rod 91 close to the rotating rod 74. During the meshing process of the first gear 75 and the second gear 76, the connecting rod 81 contacts the linkage rod 91, and through the setting of the guide surface 811, the connecting rod 81 is recovered to the accommodating hole 741; until the first gear 75 and the second gear 76 are meshed, the connecting spring 82 pushes the connecting rod 81 to be automatically inserted into the connecting hole 911, thereby connecting the rotating rod 74 with the linkage rod 91, so that the rotating rod 74 can drive the linkage rod 91 to rotate, and the linkage rod 91 can drive the screw rod 92 to rotate.

[0049] See also Figure 6 The guide rod 93 is fixed on the inner wall of the reduction box 1; the movable plate 94 is sleeved between the guide rod 93 and the screw rod 92, and the screw rod 92 is threadedly matched with the movable plate 94. When the screw rod 92 rotates, the movable plate 94 can move on the guide rod 93 and along the length direction of the guide rod 93.

[0050] See also Figure 5 and Figure 6The maintenance part 10 includes: an oil storage tank 101, an oil pump 102, a delivery pipe 103, an oil spray pipe 104 and an injection head 105. The oil storage tank 101 is fixedly mounted on the outer wall of the reduction box 1, and the oil storage tank 101 is used to store lubricating oil; the oil pump 102 is mounted on the oil storage tank 101, and the oil pump 102 is connected to the oil storage tank 101. The oil spray pipe 104 is rotatably mounted on the side of the moving plate 94 close to the primary rod 41, and the injection head 105 is mounted on the oil spray pipe 104, and the injection head 105 can atomize the lubricating oil to a certain extent and spray it onto all gears.

[0051] See also Figure 5 and Figure 6 One end of the delivery pipe 103 is connected to the oil pump 102 and the other end is connected to the oil injection pipe 104. In this embodiment, the delivery pipe 103 is a hose and its length meets the moving distance of the movable plate 94. When the movable plate 94 moves, the oil pump 102 is started to pump the lubricating oil into the oil injection pipe 104, and the injection head 105 sprays it onto all the gears in the reduction box 1, thereby achieving the maintenance effect.

[0052] See also Figure 6 Furthermore, the maintenance component also includes: the swing part 2 includes: a fixed rack 21, a moving gear 22, a slider 23, a connecting rod 24, a pulling rope 25 and a reset spring 26, the fixed rack 21 is fixed on the inner wall of the reduction box 1 and is horizontally arranged; the moving gear 22 is rotatably installed on the side of the moving plate 94 away from the injection pipe 104, and the moving gear 22 is meshed with the fixed rack 21, and during the movement process of the moving plate 94, the moving gear 22 can rotate.

[0053] See also Figure 6 The slider 23 is slidably arranged on the side of the moving plate 94 away from the injection pipe 104, and the slider 23 slides in the vertical direction; one end of the connecting rod 24 is rotatably installed on the side of the moving gear 22 away from the moving plate 94, and the other end is rotatably installed on the slider 23. When the moving gear 22 rotates, the slider 23 can reciprocate up and down in the vertical direction through the setting of the connecting rod 81.

[0054] See also Figure 6 One end of the pulling rope 25 is fixed to the slider 23, and the other end is fixed to one side wall of the fuel injection pipe 104; the reset spring 26 is fixed to the moving plate 94 and the side wall of the fuel injection pipe 104 away from the pulling rope 25. When the slider 23 moves downward, the pulling rope 25 can pull the fuel injection pipe 104 to rotate; when the slider 23 moves upward, the reset spring 26 resets the fuel injection pipe 104, thereby driving the fuel injection pipe 104 to swing, so as to increase the injection range of the injection head 105, so as to ensure that all gears can be lubricated by the lubricating oil.

[0055] The working principle of the second embodiment is as follows: when the moving plate 94 moves, the oil pump 102 is started to pump the lubricating oil into the oil spray pipe 104, and the spray head 105 sprays the lubricating oil onto all the gears in the reduction box 1, thereby achieving the maintenance effect.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable limit door opening motor, characterized in that: include: A motor (11) and a reduction box (1), wherein a transmission assembly (4) is arranged in the reduction box (1), the motor (11) is mounted on the reduction box (1), a drive assembly (3) is arranged between an output shaft of the motor (11) and the transmission assembly (4), and a hard limit assembly (5) is arranged on the transmission assembly (4).

2. The adjustable limit door opening motor according to claim 1, characterized in that: The driving assembly (3) comprises: a driving rod (31), a driving gear (32) and a rotating gear (33); the driving rod (31) is coaxially connected to the output shaft of the motor (11), and the driving gear (32) is coaxially sleeved on the driving rod (31); the rotating gear (33) is coaxially fixed to the transmission assembly (4), and the driving gear (32) is meshed with the rotating gear (33).

3. The adjustable limit door opening motor according to claim 2, characterized in that: The transmission assembly (4) comprises: a primary rod (41), a primary driving gear (42), a primary driven gear (43), a secondary rod (44), a secondary driving gear (45), a secondary driven gear (46), a tertiary rod (47), a tertiary driving gear (48), a tertiary driven gear (49), a quadruple rod (40), a quadruple driving gear (401), a quadruple driven gear (402) and a fifth rod (403); the primary rod (41), the secondary rod (44), the tertiary rod (47), the quadruple rod (40) and the fifth rod (403) are all rotatably mounted in the reduction box (1); the rotating gear (33) and the primary driving gear (42) are both coaxially sleeved on the primary rod (41); the primary driven gear (43) and the secondary driving gear (45) are both coaxially sleeved on the primary rod (41). On the secondary rod (44), the secondary driven gear (46) and the third driving gear (48) are both coaxially sleeved on the third rod (47), the third driven gear (49) and the fourth driving gear (401) are both coaxially sleeved on the fourth rod (40), the fourth driven gear (402) is coaxially sleeved on the fifth rod (403), and the first driving gear (42) is meshed with the first driven gear (43), the second driving gear (45) is meshed with the second driven gear (46), the third driving gear (48) is meshed with the third driven gear (49), the fourth driving gear (401) is meshed with the fourth driven gear (402), and the hard limit assembly (5) is arranged between the fifth rod (403) and the fourth driven gear (402).

4. The adjustable limit door opening motor according to claim 3, characterized in that: The hard limit assembly (5) comprises: a collar (51), a stopper (52) and a stopper column (53); the collar (51) is sleeved on the five-stage rod (403); the stopper (52) is fixed on the collar (51); and the stopper column (53) is fixed on the four-stage driven gear (402).

5. The adjustable limit door opening motor according to claim 4, characterized in that: An adjustment component (6) is arranged between the collar (51) and the reduction box (1), and the adjustment component (6) comprises: a worm wheel (61), a worm (62) and an end cover (63); the worm wheel (61) is rotatably sleeved on the five-stage rod (403), and the collar (51) is fixedly connected to the worm wheel (61); the worm (62) is rotatably mounted on the reduction box (1), and the worm (62) is fixedly connected to the end cover (63); and the worm (62) is meshed with the worm wheel (61).

6. The adjustable limit door opening motor according to claim 3, characterized in that: A maintenance component is provided between the reduction box (1) and the motor (11), the maintenance component comprising: a pushing part (7), a connecting part (8), a moving part (9) and a maintenance part (10); the pushing part (7) comprises: a clamping rod (71), a pushing bearing (72), a fixing plate (73), a rotating rod (74), a first gear (75), a second gear (76) and an electric push rod (77); the driving rod (31) comprises: a front rod (311) and a rear rod (312); the front rod (311) is coaxially fixed with an output shaft of the motor (11), and the first gear (75) is coaxially sleeved on the front rod (311); a clamping groove (3111) is provided on the front rod (311); the driving gear (32) is coaxially sleeved on the rear rod (312); the clamping rod ( One end of the push bearing (71) is fixed to the rear rod (312), and the other end is arranged in the slot (3111); the push bearing (72) is fixedly sleeved on the rear rod (312); the electric push rod (77) is fixed in the reduction box (1), and the output shaft of the electric push rod (77) is fixed to the outer ring of the push bearing (72); the fixed plate (73) is fixed on the outer ring of the push bearing (72); the rotating rod (74) is rotatably mounted on the fixed plate (73); the second gear (76) is coaxially sleeved on the rotating rod (74); the connecting part (8) is arranged on the rotating rod (74); the moving part (9) is arranged in the reduction box (1); and the maintenance part (10) is arranged between the moving part (9) and the reduction box (1).

7. The adjustable limit door opening motor according to claim 6, characterized in that: The connecting portion (8) comprises: a connecting rod (81) and a connecting spring (82); a receiving hole (741) is provided on the rotating rod (74); the connecting rod (81) is arranged in the receiving hole (741); the connecting spring (82) is fixed between the connecting rod (81) and the bottom of the receiving hole (741); and a guiding surface (811) is provided on the connecting rod (81).

8. The adjustable limit door opening motor according to claim 7, characterized in that: The moving part (9) comprises: a linkage rod (91), a screw rod (92), a guide rod (93), a moving plate (94) and a transmission belt (95); the screw rod (92) is rotatably installed in the reduction box (1); the guide rod (93) is fixed in the reduction box (1); the moving plate (94) is sleeved between the screw rod (92) and the guide rod (93); the screw rod (92) and the moving plate (94) are threadedly matched; the transmission belt (95) is arranged between the linkage rod (91) and the screw rod (92); a connecting hole (911) for inserting the connecting rod (81) is opened on the linkage rod (91); and the maintenance part (10) is arranged between the moving plate (94) and the reduction box (1).

9. The adjustable limit door opening motor according to claim 8, characterized in that: The maintenance part (10) comprises: an oil storage tank (101), an oil pump (102), a delivery pipe (103), an oil injection pipe (104) and an injection head (105); the oil storage tank (101) is mounted on the reduction box (1); the oil pump (102) is mounted on the oil storage tank (101) and is connected to the oil storage tank (101); the oil injection pipe (104) is rotatably mounted on the movable plate (94); and the injection head (105) is arranged on the oil injection pipe (104); one end of the delivery pipe (103) is connected to the oil injection pipe (104) and the other end is connected to the oil pump (102).

10. The adjustable limit door opening motor according to claim 9, characterized in that: The maintenance component also includes: a swing part (2), the swing part (2) includes: a fixed rack (21), a movable gear (22), a slider (23), a connecting rod (24), a pulling rope (25) and a return spring (26), the fixed rack (21) is fixed in the reduction box (1), the movable gear (22) is rotatably mounted on the movable plate (94), and the movable gear (22) is meshed with the fixed rack (21), the slider (23) is slidably arranged on the movable plate (94), one end of the connecting rod (24) is rotatably mounted on the movable gear (22), and the other end is rotatably mounted on the slider (23), one end of the pulling rope (25) is fixed to the slider (23), and the other end is fixed to the injection pipe (104), and the return spring (26) is fixed between the injection pipe (104) and the movable plate (94).

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