阅读说明：本技术 一种高径向载荷回转减速机 (High radial load rotary speed reducer ) 是由 洪松 鲁佳科 高阳 钱玉山 郑国华 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种高径向载荷回转减速机,包括主梁和至少一台回转减速机,其中一台回转减速机与电机相连,回转减速机通过传动轴传动连接,所述回转减速机的外壳上设有第一限位部,蜗轮周向上设于第一限位部相配合的第二限位部。本发明通过第一限位部和第二限位部的结构的设置,确保了回转减速机在转动时的稳定性更高,其次,确保外部行程开关失效的情况下仍有较高的安全保护能力,保证了蜗轮在一定范围内进行旋转。(The invention discloses a high radial load rotary speed reducer, which comprises a main beam and at least one rotary speed reducer, wherein one rotary speed reducer is connected with a motor, the rotary speed reducer is in transmission connection through a transmission shaft, a shell of the rotary speed reducer is provided with a first limiting part, and a worm wheel is circumferentially arranged on a second limiting part matched with the first limiting part. According to the invention, through the arrangement of the structures of the first limiting part and the second limiting part, the higher stability of the rotary speed reducer during rotation is ensured, and secondly, the higher safety protection capability is ensured under the condition that the external travel switch fails, and the worm wheel is ensured to rotate within a certain range.)

1. A high radial load rotary speed reducer comprises a main beam and at least one rotary speed reducer (1), wherein one rotary speed reducer (1) is connected with a motor, the motor is controlled by a motor controller, and the motor controller is connected with the motor through a cable; the method is characterized in that: the main beam is driven to rotate by the synchronous rotation of the driving rotary speed reducer (1) and the driven rotary speed reducer (1); a first limiting part (141) is arranged on the shell of the rotary speed reducer (1), and a second limiting part (140) matched with the first limiting part (141) is arranged on the circumferential direction of the worm wheel (14).

2. The high radial load rotary reducer of claim 1, wherein: the first limiting part (141) is a convex angle fixedly connected in the shell, the second limiting part (140) is a convex ring fixedly connected to the circumferential direction of the worm wheel (14), and the lower part of the shell of the rotary speed reducer (1) is provided with an installation position (34) for placing a power supply machine.

3. The high radial load rotary reducer of claim 1, wherein: the rotary speed reducer (1) is a worm gear (14), the worm gear (14) of the rotary speed reducer (1) is fixedly arranged on the upright column, the shell of the rotary speed reducer (1) is fixedly connected with the main beam, and the worm gear (14) is in running fit with the shell; when the motor is started, the worm (15) revolves around the worm wheel (14) while rotating, and the rotary speed reducer (1) and the main beam are driven to rotate.

4. The high radial load rotary reducer of claim 1, wherein: a first connecting column (130) and a second connecting column (131) are arranged on a shell of the rotary speed reducer (1), a main beam on the left side of the rotary speed reducer (1) is connected with the first connecting column (130), and a main beam on the right side of the rotary speed reducer (1) is connected with the second connecting column (131); the second connecting column (131) and the shell are of an integral structure, and the first connecting column (130) and the second connecting column (131) are detachably connected.

5. The high radial load slewing reducer according to claim 1, wherein a rolling bearing assembly (26) and a sliding bearing assembly (27) are arranged between the worm gear (14) and the first connecting column (130), the rolling bearing assembly (26) comprises an inner ring (260), an outer ring (261) and a plurality of balls (262) arranged between the inner ring (260) and the outer ring (261), the inner ring (260) is formed on the first connecting column (130), and the outer ring (261) is formed on the worm gear (14).

6. A high radial load slewing reducer according to claim 5, wherein said plain bearing assembly (27) comprises a first sliding portion (270) and a second sliding portion (271), said first sliding portion (270) being formed on the second connecting column (131), said second sliding portion (271) being formed on the worm wheel (14).

7. The high radial load rotary speed reducer according to claim 1, wherein a bevel gear set and a universal joint (42) are arranged in the rotary speed reducer (1a), and the transmission shaft (10a) is in transmission fit with the input end or the output end of the rotary speed reducer (1a) through the bevel gear set and the universal joint (42).

8. The high radial load rotary reducer of claim 1, wherein: the novel bevel gear mechanism is characterized in that a first bevel gear group (43), a second bevel gear group (44) and a third bevel gear group (45) are arranged in the rotary speed reducer (1a), a fourth bevel gear (46) is sleeved outside the transmission shaft (10), one end of the first bevel gear group (43) is meshed with the input end or the output end of the rotary speed reducer (1a), one end of the third gear group (45) is meshed with the fourth bevel gear (46), and two ends of the second bevel gear group (44) are respectively meshed with the other ends of the first bevel gear group (43) and the third bevel gear group (45).

9. The high radial load rotary reducer of claim 1, wherein: a first bevel gear group (43) and a second bevel gear group (44) are arranged in the rotary speed reducer (1a), a fourth bevel gear (46) is sleeved outside the transmission shaft (10), the first bevel gear group (43) is meshed with the fourth bevel gear (46), one end of the second bevel gear group (44) is meshed with the input end or the output end of the rotary speed reducer (1a), the other end of the second bevel gear group is meshed with the first bevel gear group (43), and the universal joint (42) is arranged on the second bevel gear group.

Technical Field

The invention belongs to the technical field of solar power generation, and particularly relates to a high radial load rotary speed reducer.

Background

Solar photovoltaic power generation is rapid in the rising of the ratio of the power market, the future market prospect is considerable, meanwhile, the power generation capacity of the whole power station can be increased by more than 20% by adopting a tracking system in a large commercial power station, so that more and more commercial power stations adopting tracking power generation are provided, in the solar tracking system, a speed reducer is a core device for driving a main beam to rotate, and when an existing speed reducer is driven in operation, the axial and radial bearing capacity of the existing speed reducer is weak, so that the running stability of the speed reducer is poor.

Disclosure of Invention

The invention provides a high radial load rotary speed reducer for overcoming the defects of the prior art.

The single-girder multi-point driving solar tracking power generation system is provided for solving the problems that a flat single shaft in the solar tracking system easily generates low-frequency resonance and torsion deformation of torque tube girders at two ends of the girders is easy to occur.

A single-girder multipoint driving solar tracking system comprises a girder and at least one rotary speed reducer, wherein one rotary speed reducer is connected with a motor, the motor is controlled by a motor controller, and the motor controller is connected with the motor through a cable; the rotary speed reducer connected with the motor is a driving rotary speed reducer, other rotary speed reducers are driven rotary speed reducers, the torque of the driving rotary speed reducer is transmitted to the driven rotary speed reducer through a transmission shaft, and the driving rotary speed reducer and the driven rotary speed reducer synchronously rotate to further drive the main beam to rotate.

In the tracking power generation system, the solar cell panel is fixed on a main beam, and the main beam rotates to drive the solar cell panel to adjust the angle, so that the solar cell panel tracks the solar energy. Usually, two stand spans are more than 7 ~ 8 meters basically, and consequently, the torque transmission shaft span between initiative gyration speed reducer and the driven gyration speed reducer is big, the condition of dead weight flagging appears easily, leads to moment of torsion transmission lag and the phenomenon of crawling to appear.

In a solar tracking system, the stability of the transmission shaft is the basis for the stability of the whole tracking system. In a first aspect of the invention, it is an object to provide a solar tracking system with stable torque transmission.

Optionally, the rotary speed reducer, the transmission shaft and the main beam are arranged in a synchronous and homodromous rotation mode.

Optionally, the rotary speed reducer is a worm gear rotary speed reducer, a worm gear of the rotary speed reducer is fixedly arranged on the upright post, a shell of the rotary speed reducer is fixedly connected with the main beam, and the worm gear is in running fit with the shell; when the motor is started, the worm rotates and revolves around the worm wheel to drive the rotary speed reducer and the main beam to rotate.

Optionally, a plurality of connecting pieces are distributed on the transmission shaft at intervals along the length direction, and the connecting pieces are connected with the main beam.

Optionally, one end of the connecting piece is sleeved on the transmission shaft, the other end of the connecting piece is sleeved on the main beam, a bearing is arranged at the position of the transmission shaft and the joint, and a frame body buckling piece is arranged at the position of the main beam and the joint.

Optionally, a connecting plate is arranged on the upright post, and a connecting part connected with the connecting plate is arranged on the worm wheel.

Optionally, a first connecting column and a second connecting column are arranged on the shell, the main beam on the left side of the rotary speed reducer is connected with the first connecting column, and the main beam on the right side of the rotary speed reducer is connected with the second connecting column; the second connecting column and the shell are of an integral structure, and the first connecting column and the second connecting column are detachably connected.

Optionally, a rolling bearing assembly and a sliding bearing assembly are arranged between the worm wheel and the first connecting column, the rolling bearing assembly includes an inner ring, an outer ring and a plurality of balls arranged between the inner ring and the outer ring, the inner ring is formed on the first connecting column, and the outer ring is formed on the worm wheel.

Optionally, the sliding bearing assembly includes a first sliding portion and a second sliding portion, the first sliding portion is formed on the second connecting column, and the second sliding portion is formed on the worm wheel.

Optionally, an incomplete convex ring is arranged on the circumferential direction of the worm wheel, and a convex angle matched with the incomplete convex ring is arranged on the shell.

Optionally, a first bevel gear and a transmission gear are sleeved outside one end of the worm, a first gear meshed with the transmission gear is arranged at the output end of the motor, a second bevel gear is sleeved outside the transmission shaft, and the first bevel gear is meshed with the second bevel gear.

The area environment that solar power station set up usually is comparatively abominable (like plain, desert), and sand blown by the wind, corrosive gas, rainwater etc. all can lead to the transmission shaft life-span to shorten, influence the result of use of its transmission shaft. In a second aspect, the present invention aims to provide a multi-point drive tracking transmission system which can improve the service life of a transmission shaft.

Optionally, the transmission shaft is located in the main beam.

Optionally, a plurality of bevel gear sets are arranged in the rotary speed reducer, and the transmission shaft is in transmission fit with the input end or the output end of the rotary speed reducer through the plurality of bevel gear sets.

Optionally, a bevel gear group and a universal corner joint are arranged in the rotary speed reducer, and the transmission shaft is in transmission fit with the input end or the output end of the rotary speed reducer through the bevel gear group and the universal joint.

Optionally, a first bevel gear group, a second bevel gear group and a third bevel gear group are arranged in the rotary speed reducer, a fourth bevel gear is sleeved outside the transmission shaft, one end of the first bevel gear group is meshed with the input end or the output end of the rotary speed reducer, one end of the third gear group is meshed with the fourth bevel gear, and two ends of the second bevel gear group are respectively meshed with the other ends of the first bevel gear group and the third bevel gear group.

Optionally, a first bevel gear group and a second bevel gear group are arranged in the rotary speed reducer, a fourth bevel gear is sleeved outside the transmission shaft, the first bevel gear group is meshed with the fourth bevel gear, one end of the second bevel gear group is meshed with the input end or the output end of the rotary speed reducer, the other end of the second bevel gear group is meshed with the first bevel gear group, and the universal joint is arranged on the second bevel gear group.

Optionally, the rotary speed reducer is a worm gear rotary speed reducer, a first connecting column and a second connecting column are integrally formed on a worm gear of the rotary speed reducer, a main beam on the left side of the rotary speed reducer is connected with the first connecting column, and a main beam on the right side of the rotary speed reducer is connected with the second connecting column.

Optionally, the first connecting column and the second connecting column are both arranged in a rectangular shape.

Optionally, a first limiting portion is arranged on a shell of the rotary speed reducer, and a second limiting portion matched with the first limiting portion is arranged on the circumferential direction of the worm wheel.

In the solar tracking system, a motor is connected with a motor controller through a cable, and the stability of the cable is the basis for the stability and reliability of the whole tracking system. In a third aspect of the invention, the invention aims to provide a solar tracking system with a motor and a motor controller connected stably.

Optionally, a mounting position for placing a power supply is arranged at the lower part of the shell of the rotary speed reducer, and the motor controller are in a relatively static state.

Optionally, the motor controller is arranged on the main beam.

Optionally, the motor controller is arranged on the upright post.

Optionally, the rotary speed reducer is a worm gear rotary speed reducer, and the motor is arranged in parallel with the worm.

Optionally, the output end of the motor is provided with a first gear, the worm is provided with a transmission gear, the shell is provided with a transmission gear, and the transmission gear is respectively engaged with the first gear and the transmission gear.

Optionally, a support lug is arranged outside the motor casing, and a support part connected with the support lug is arranged on the casing.

In a tracking power generation system, a motor is the key for driving a rotary speed reducer, and the rotary speed reducer drives a main beam to rotate.

Optionally, the lower part of the shell of the rotary speed reducer is provided with an installation position for placing a power supply.

Optionally, the motor is located at the lower part of the housing of the rotary speed reducer, the motor and the housing of the rotary speed reducer are located on the same vertical plane, and the motor and the worm of the rotary speed reducer are arranged in parallel.

Optionally, the motor is located at the lower part of the housing of the rotary speed reducer, the motor and the housing of the rotary speed reducer are located on the same vertical plane, and the motor and the worm of the rotary speed reducer are arranged vertically.

Optionally, the motor is located on the left side of the lower portion of the shell of the rotary speed reducer, and the motor and the worm of the rotary speed reducer are arranged vertically.

Optionally, the motor is located on the right side of the lower portion of the shell of the rotary speed reducer, and the motor and the worm of the rotary speed reducer are arranged vertically.

Optionally, the output end of the motor is connected with the worm through gear transmission.

In a solar tracking system, a rotary speed reducer is a core device for driving a main beam to rotate.

Optionally, a first limiting portion is arranged on a shell of the rotary speed reducer, and a second limiting portion matched with the first limiting portion is arranged on the circumferential direction of the worm wheel.

Optionally, the first limiting portion is a convex angle fixedly connected in the housing, and the second limiting portion is a convex ring fixedly connected in the circumferential direction of the worm wheel.

Optionally, the lower part of the shell of the rotary speed reducer is provided with an installation position for placing a power supply.

Optionally, the rotary speed reducer is a worm gear rotary speed reducer, a worm gear of the rotary speed reducer is fixedly arranged on the upright post, a shell of the rotary speed reducer is fixedly connected with the main beam, and the worm gear is in running fit with the shell; when the motor is started, the worm rotates and revolves around the worm wheel to drive the rotary speed reducer and the main beam to rotate.

Optionally, a first connecting column and a second connecting column are arranged on the shell, the main beam on the left side of the rotary speed reducer is connected with the first connecting column, and the main beam on the right side of the rotary speed reducer is connected with the second connecting column; the second connecting column and the shell are of an integral structure, and the first connecting column and the second connecting column are detachably connected.

Optionally, a rolling bearing assembly and a sliding bearing assembly are arranged between the worm wheel and the first connecting column, the rolling bearing assembly includes an inner ring, an outer ring and a plurality of balls arranged between the inner ring and the outer ring, the inner ring is formed on the first connecting column, and the outer ring is formed on the worm wheel.

Optionally, the sliding bearing assembly includes a first sliding portion and a second sliding portion, the first sliding portion is formed on the second connecting column, and the second sliding portion is formed on the worm wheel.

Optionally, a bevel gear group and a universal joint are arranged in the rotary speed reducer, and the transmission shaft is in transmission fit with the input end or the output end of the rotary speed reducer through the bevel gear group and the universal joint.

Optionally, a first bevel gear group, a second bevel gear group and a third bevel gear group are arranged in the rotary speed reducer, a fourth bevel gear is sleeved outside the transmission shaft, one end of the first bevel gear group is meshed with the input end or the output end of the rotary speed reducer, one end of the third gear group is meshed with the fourth bevel gear, and two ends of the second bevel gear group are respectively meshed with the other ends of the first bevel gear group and the third bevel gear group.

Optionally, a first bevel gear group and a second bevel gear group are arranged in the rotary speed reducer, a fourth bevel gear is sleeved outside the transmission shaft, the first bevel gear group is meshed with the fourth bevel gear, one end of the second bevel gear group is meshed with the input end or the output end of the rotary speed reducer, the other end of the second bevel gear group is meshed with the first bevel gear group, and the universal joint is arranged on the second bevel gear group.

Optionally, the rotary speed reducer is a worm gear rotary speed reducer, a first connecting column and a second connecting column are integrally formed on a worm gear of the rotary speed reducer, a main beam on the left side of the rotary speed reducer is connected with the first connecting column, and a main beam on the right side of the rotary speed reducer is connected with the second connecting column.

The aspects of the five aspects of the invention may be implemented as separate aspects or in combination with each other. The structure in the aspect of any one of the aspects of the present invention may be used as an independent technical aspect or may be combined with other technical aspects.

In summary, the invention has the advantages that:

1. the transmission shaft and the main beam synchronously move in the same direction, so that the transmission shaft can be supported through the main beam, the transmission shaft is not easy to twist or break, the service life is long, in addition, the diameter of the transmission shaft does not need to be excessively large, and the equipment investment cost is low; and because transmission shaft, motor, girder all rotate in step, and then at the girder in-process that turns, the condition of photovoltaic board collision transmission shaft can not appear, and the angle that the girder is adjustable is bigger, and the flexibility ratio is higher, and equipment life obtains the extension.

2. The second connecting column and the shell are integrally arranged, so that the processing is more convenient, the sufficient strength and rigidity are ensured, and the safety is ensured; secondly first spliced pole and second spliced pole are the components of a whole that can function independently setting for it is more convenient when assembling first spliced pole and second spliced pole, and can change alone when damaging, and cost of maintenance is low, and the components of a whole that can function independently structure can be with the structure of spliced pole do more firm man-hour, increase of service life, connect with the mode of dismantling, convenient assembly and maintenance.

3. The transmission shaft is positioned in the main beam, so that the transmission shaft is prevented from being influenced by a severe environment, the problems of corrosion, aging and the like of the transmission shaft are avoided, and the service life of the transmission shaft is prolonged; secondly, the condition that the transmission shaft is blocked due to sand wind is reduced, and the failure rate is reduced; and, because the transmission shaft is arranged in the interior, the appearance layout of the whole equipment is more concise and beautiful.

4. Through the setting of universal joint, guaranteed that the driving chain realizes the corner function, with power transmission more stable.

5. Through the setting of motor and motor controller for relative quiescent condition, make the girder turn the in-process, the condition that the cable between motor and the motor controller can not appear being dragged, the condition that the cable broke or the interface pine takes off can not appear, and equipment fault rate is low, and the security is high, and the cable can not the phenomenon production of the condition such as threading knotting wire winding yet, has guaranteed that the outward appearance of whole equipment is pleasing to the eye.

6. Through the arrangement of the structures of the first limiting part and the second limiting part, the stability of the rotary speed reducer during rotation is ensured to be higher, and secondly, the high safety protection capability is ensured to be still provided under the condition that the external travel switch fails.

Drawings

Fig. 1 is a schematic structural view of the connection of the rotary speed reducer with a main beam and an upright post.

Fig. 2 is a schematic structural diagram of the rotary speed reducer of the present invention.

Fig. 3 is a schematic diagram of an explosion structure of the rotary speed reducer of the present invention.

Fig. 4 is a partial sectional view of the rotary reduction gear of the present invention.

Fig. 5 is an enlarged view of a structure shown in fig. 4.

Fig. 6 is a partial cross-sectional view of fig. 1.

Fig. 7 is a partial cross-sectional view of fig. 1.

Fig. 8 is an enlarged view of the structure at B in fig. 7.

Fig. 9 is a schematic partial cross-sectional view three of fig. 1.

Fig. 10 is an enlarged view of the structure at C in fig. 9.

Fig. 11 is a schematic view of the worm gear of the present invention.

Fig. 12 is a schematic structural view of a transmission shaft of the rotary speed reducer of the present invention located in a main beam.

Fig. 13 is an exploded view of the transmission shaft of the rotary speed reducer of the present invention in the main beam.

Fig. 14 is a first partial sectional structure diagram of the transmission shaft of the rotary speed reducer of the present invention located in the main beam.

Fig. 15 is an enlarged view of the structure at D in fig. 14.

Fig. 16 is a second schematic structural view of a partial section of a transmission shaft of the rotary speed reducer of the present invention in a main beam.

Fig. 17 is an enlarged view of the structure at E in fig. 16.

Fig. 18 is a schematic view of a worm wheel structure of a transmission shaft of the rotary speed reducer of the invention positioned in a main beam.

Fig. 19 is a third schematic structural view of a partial section of a transmission shaft of the rotary speed reducer of the invention positioned in a main beam.

Fig. 20 is an enlarged view of the structure at F in fig. 19.

Fig. 21 shows a second embodiment of the rotary reduction gear of the present invention in which the drive shaft is located in the main beam.

Fig. 22 is a partial cross-sectional view of fig. 21.

Detailed Description

As shown in fig. 1-3, 6 and 12-13, a high radial load rotary speed reducer comprises a main beam and at least one rotary speed reducer 1, wherein the number of the rotary speed reducers 1 can be arranged according to specific situations, and can be 1 or more than 1, and the internal structures of the rotary speed reducers 1 are arranged completely in the same way; one of the rotary speed reducers is connected with a motor, the motor is controlled by a motor controller, and the motor controller is connected with the motor through a cable; the rotary speed reducer 1 connected with the motor is a driving rotary speed reducer, other rotary speed reducers 1 are driven rotary speed reducers, the torque of the driving rotary speed reducer is transmitted to the driven rotary speed reducers through the transmission shaft 10, and the driving rotary speed reducer and the driven rotary speed reducers synchronously rotate to further drive the main beam to rotate. The upright and the main beam mentioned in the present document are prior art, the bottom of the upright contacts with the ground, and the main beam can drive the photovoltaic panel to rotate together, which is not described herein again

As shown in fig. 2 and 6, in some embodiments, the rotary speed reducer 1 and the transmission shaft 10 are arranged in a synchronous equidirectional rotation manner with the main beam, and the transmission shaft is also arranged in a synchronous equidirectional rotation manner along with the main beam in a rotating process through the main beam and the rotary speed reducer, so that the transmission shaft is ensured to be in a synchronous equidirectional rotation manner, and the main beam rotating process is not contacted with the transmission shaft, and the phenomenon that the main beam is blocked and cannot rotate is avoided.

As shown in fig. 3-5 and 10, in some embodiments, the rotary speed reducer 1 is a worm gear rotary speed reducer, a worm gear 14 of the rotary speed reducer is fixedly disposed on the upright, a housing 13 of the rotary speed reducer is fixedly connected with the main beam, and the worm gear 14 and the housing 13 are in a rotating fit; when the motor is started, the worm 15 revolves around the worm wheel 14 while rotating, so that the rotary speed reducer and the main beam are driven to rotate. The sealing ring 16 is arranged at the joint of the worm wheel 14 and the shell 13, the sealing ring 16 can be made of materials with better weather resistance, such as rubber, steel plates and the like, the sealing ring 16 can shield direct irradiation of sunlight to the sealing ring 16 by adopting the materials with good weather resistance, aging of the sealing element is delayed, the service life of the sealing element is prolonged, the sealing ring 16 is arranged in a U shape, a circle of convex ribs 17 are arranged on the sealing ring 16, external dust can be prevented from entering the sealing ring 16 by arranging the sealing ring 16, a certain dustproof effect is achieved, and when the sealing ring 16 is inserted between the shell 13 and the worm wheel 14, the sealing ring 16 and the worm wheel 14 are fixed through the convex ribs 17, so that the stability of the worm; optionally, a cover plate 18 is arranged on the housing 13, the cover plate 18 can be fixed to the housing 13 by adopting the shape of a bolt and a nut, the housing 13 is in a closed state by the cover plate 18, and external dust can be prevented from entering the housing 13 by the cover plate 18, so that the operation stability of the internal mechanical structure of the housing is not affected; a worm wheel 14 of the rotary speed reducer is fixedly arranged on the upright column, a shell 13 of the rotary speed reducer is fixedly connected with the main beam, and the worm wheel 14 is in running fit with the shell 13; when the motor is started, the worm 15 revolves around the worm wheel 14 while rotating, so that the rotary speed reducer and the main beam are driven to rotate, the stand column and the main beam mentioned above are in the prior art, the bottom of the stand column is in contact with the ground, and the main beam can drive the photovoltaic panel to rotate together, so that the details are not repeated.

As shown in fig. 9-10, in some embodiments, the transmission shaft 10 is composed of a cylinder and 2 rhombic columns, the rhombic columns are arranged in a 6-sided shape, two ends of the cylinder are respectively inserted into the 2 rhombic columns, and a second bearing 11 matched with the rotary speed reducer 1 is sleeved outside the transmission shaft 10.

In some embodiments, as shown in fig. 1 and 6, the upright is provided with a connecting plate, the worm wheel 14 is provided with a connecting part 25 connected with the connecting plate, the connecting plate and the connecting part 25 can be fixed in a bolt and nut mode, and can be replaced independently when damaged, and the maintenance cost is low.

As shown in fig. 9, in some embodiments, a first connecting column 130 and a second connecting column 131 are provided on the housing 13, the main beam on the left side of the rotary speed reducer is connected to the first connecting column 130, and the main beam on the right side of the rotary speed reducer is connected to the second connecting column 131; the second connecting column 131 and the housing 13 are integrated, and the first connecting column 130 and the second connecting column 131 are detachably connected. The second connecting column 131 and the shell 13 are integrally arranged, so that the processing is more convenient, the sufficient strength and rigidity are ensured, and the safety is ensured; secondly first spliced pole 130 and second spliced pole 131 set up for the components of a whole that can function independently for it is more convenient when assembling first spliced pole 130 and second spliced pole 131, and can change alone when damaging, and cost of maintenance is low, and the components of a whole that can function independently structure can be more firm with the structure of spliced pole is done man-hour, increase of service life, connect with the mode of dismantling, convenient assembly and maintenance.

As shown in fig. 4-5, in some embodiments, a rolling bearing assembly 26 and a sliding bearing assembly 27 are disposed between the worm wheel 14 and the first connecting column 130, the rolling bearing assembly 26 includes an inner ring 260, an outer ring 261, and a plurality of balls 262 disposed between the inner ring 260 and the outer ring 261, the inner ring 260 is formed on the first connecting column 130, the outer ring 261 is formed on the worm wheel 14, and specifically, a sealing strip 263 is disposed on the outer ring 261 in the circumferential direction, the sealing strip 263 can block dust from entering the inside of the balls 262, thereby ensuring the stability of the balls 262 during rolling and ensuring smooth power transmission.

As shown in fig. 9, in some embodiments, the first connecting column 130 and the second connecting column 131 are identical in shape and each of them is composed of four straight sides and four circular arcs, specifically, four circular arcs in a rectangular shape are disposed at four corners of the four straight sides, so that the four corners are convex outward.

As shown in fig. 4-5, in some embodiments, the sliding bearing assembly 27 includes a first sliding portion 270 and a second sliding portion 271, the first sliding portion 270 is formed on the second connecting post 131, and the second sliding portion 271 is formed on the worm wheel 14.

As shown in fig. 7-10, in some embodiments, a first bevel gear 30 and a transmission gear 301 are sleeved outside one end of the worm 15, a first gear 31 is disposed at an input end of the motor, a transmission gear 32 is disposed on the housing, the first gear 31 is engaged with the transmission gear 301 through the transmission gear 32, specifically, the first gear 31 and the transmission gear 32 are configured in the same shape and size, the area of the first gear 31 is smaller than that of the first bevel gear 30, a second bevel gear 33 is sleeved outside a cylinder outside the transmission shaft 10, and the second bevel gear 33 is engaged with the first bevel gear 30. When the motor is started, the motor drives the first gear 31 to rotate, the first gear 31 is meshed with the transmission gear 32, the transmission gear 32 rotates and is meshed with the transmission gear 301, the transmission gear 301 rotates and drives the worm 15 to rotate, the worm 15 rotates and drives the first bevel gear 30 to rotate, the first bevel gear 30 rotates and is meshed with the second bevel gear 33, and the second bevel gear 33 drives the transmission shaft 10 to rotate.

As shown in fig. 12-13, in some embodiments, the drive shaft 10a is located within the main beam. Inside being located the girder through transmission shaft 10a, reducing transmission shaft 10a and exposing for a long time and leading to transmission shaft 10a to take place corrosivity for transmission shaft 10a life-span obtains better promotion, and secondly, owing to locate inside, make the outward appearance overall arrangement of whole equipment more succinct and pleasing to the eye.

As shown in fig. 12 to 13, in some embodiments, a plurality of bevel gear sets are disposed in the rotary speed reducer 1a, and the transmission shaft 10a is in transmission fit with the input end or the output end of the rotary speed reducer 1a through the plurality of bevel gear sets.

As shown in fig. 14 to 17, in some embodiments, a first bevel gear set 43, a second bevel gear set 44 and a third bevel gear set 45 are provided in the rotary speed reducer 1a, a fourth bevel gear 46 is sleeved outside the cylinder a of the transmission shaft 10a, one end of the first bevel gear set 43 is engaged with the input end or the output end of the rotary speed reducer 1a, one end of the third bevel gear set 45 is engaged with the fourth bevel gear 46, and two ends of the second bevel gear set 44 are engaged with the other ends of the first bevel gear set 43 and the third bevel gear set 45, respectively. Specifically, the first bevel gear group 43 is composed of 2 first bevel gears 430 and first transmission rods 431, the first bevel gears 430 are provided, and the first transmission rods 431 are used for connecting a pair of first bevel gears 430; the second bevel gear group 44 is composed of a pair of second bevel gears 440 and second transmission rods 441, the number of the second bevel gears 440 is 2, and the second transmission rods 441 are used for connecting the pair of second bevel gears 440; the third bevel gear set 45 is composed of a pair of third bevel gears 450 and a third transmission rod 451, the number of the third bevel gears 450 is 2, and the third transmission rod 451 is used for connecting the pair of third bevel gears 450; optionally, the input end or the output end of the rotary speed reducer 1a is composed of a pair of fifth bevel gears 48 sleeved outside one end of the worm 15a, a sixth bevel gear 49 engaged with one of the fifth bevel gears 48, and a seventh bevel gear 490 engaged with the sixth bevel gear 49, the seventh bevel gear 490 is connected with the input end of the motor, and the fifth bevel gear 48 is engaged with one of the first bevel gears 430; specifically, first transfer line 431, all be equipped with the inside continuous with the shell of slewing reducer of third bearing 4510 on second transfer line 441 and the third transfer line 451, it is optional, the outside cover of third bearing 4510 of third transfer line 451 is equipped with the connecting seat 600 that links to each other with transmission shaft 10a, the outside support that extends in this connecting seat 600 both ends, be equipped with the through-hole on the support, inside the through-hole was worn to locate by transmission shaft 10a, setting through connecting seat 600, can carry out stable support to transmission shaft 10a, guarantee that transmission shaft 10a can be stable carry out the rotation.

Alternatively, as shown in fig. 21 to 22, in other embodiments, the rotary speed reducer 1a is internally provided with a first bevel gear set 43 and a second bevel gear set 44, the transmission shaft 10a is externally sleeved with a fourth bevel gear 46, the first bevel gear set 43 is engaged with the fourth bevel gear 46, one end of the second bevel gear set 44 is engaged with the input end or the output end of the rotary speed reducer 1a, and the other end is engaged with the first bevel gear set 43; specifically, the first bevel gear group 43 is composed of a pair of first bevel gears 430 and first transmission rods 431, the first bevel gears 430 are arranged in 2, and the first transmission rods 431 are used for connecting the pair of first bevel gears 430; the second bevel gear set 44 is composed of a pair of second bevel gears 440 and a second transmission rod 441, the number of the second bevel gears 440 is 2, the second transmission rod 441 is used for connecting the pair of second bevel gears 440, and the universal joint 42 is arranged on the second bevel gear set 44. Optionally, the input end or the output end of the rotary speed reducer 1a is composed of a pair of fifth bevel gears 48 sleeved outside one end of the worm 15a and a sixth bevel gear 49 engaged with one of the fifth bevel gears 48, the sixth bevel gear 49 is connected with the input end of the motor, the other fifth bevel gear 48 is engaged with one of the second bevel gears 440, specifically, the first transmission rod 431 and the second transmission rod 441 are both provided with third bearings and connected with the inside of the housing, optionally, the outside of the third bearing of the second transmission rod 441 is sleeved with a connecting seat 600 connected with the transmission shaft 10a, two ends of the connecting seat 600 are provided with outwards extending support seats, through holes are arranged on the support seats, the transmission shaft 10a penetrates through the through holes, and by the arrangement of the connecting seat 600, the transmission shaft 10a can be stably supported, so that the transmission shaft 10a can stably rotate.

As shown in fig. 19, in some embodiments, the rotary speed reducer 1a is a worm wheel 14a, a first connecting post 130a and a second connecting post 131a are integrally formed on the worm wheel 14a of the rotary speed reducer 1a, the first connecting post 130a is connected to the first girder a on the left side of the rotary speed reducer 1a, and the second connecting post 131a is connected to the girder a on the right side of the rotary speed reducer 1 a. Through the integral arrangement, the processing is more convenient, the enough strength and rigidity are ensured, the safety is ensured, in particular, the worm wheel 14a and the shell, and the joints of the worm wheel 14a and the transmission shaft 10a are all provided with the sealing rings 16a, the sealing ring 16a may be made of a material having good weather resistance, such as rubber, steel plate, etc., and by using a material having good weather resistance, can shield the direct incidence of sunlight to the sealing ring 16a, delay the aging of the sealing element and prolong the service life of the sealing ring 16a, the sealing ring 16a is arranged in a U shape, a circle of convex ribs 17a are arranged on the sealing ring 16a, by the arrangement of the sealing ring 16a, the dust in the outside can be prevented from entering the interior, a certain dustproof effect is achieved, secondly, when the sealing ring 16a is inserted between the shell and the worm wheel 14a, the sealing ring 16a and the worm wheel 14a are fixed through the convex rib 17a, and the stability of the worm wheel 14a during rotation is ensured; optionally, the two sides of the housing are provided with self-lubricating bearings which are matched with the worm wheel 14a, the self-lubricating bearings can be connected with the housing through an end cover, the end cover is connected with the two sides of the housing in a bolt and nut mode, the worm wheel 14a is matched with the self-lubricating bearings in outer diameter and can rotate in the self-lubricating bearings, the radial load can be greatly borne, meanwhile, a certain axial load can be borne on the bearing flanging, and when one bearing is used as a fulcrum and torque is generated between the bearing flanging and the other bearing, the two bearings can bear a certain overturning load in a matched mode.

As shown in fig. 6, in some embodiments, the lower part of the housing of the rotary speed reducer 1 is provided with a mounting position 34 for placing a motor, the motor is controlled by a motor controller, the motor controller and the motor are connected by a cable, the motor and the motor controller are in a relative static state, the relative static state is that an object keeps a constant position relative to another reference object around the object, the relative static state can only move relative to each other and is also relatively static, and the motion and the static state are opposite.

As shown in fig. 3 and 6, in some embodiments, the housing of the motor is provided with a support lug 35, the housing of the rotational speed reducer is provided with a support portion 36 connected to the support lug 35, and the support lug 35 and the support portion 36 can be fixed in a bolt and nut manner, so that the motor is stably arranged on the housing of the rotational speed reducer 1.

As shown in fig. 7, in some embodiments, a first limiting portion 141 is disposed on the outer shell of the rotary speed reducer 1, and a second limiting portion 140, which is matched with the first limiting portion 141, is disposed on the circumferential direction of the worm wheel 14.

Preferably, as shown in fig. 14 to 15, in some embodiments, a first limiting portion 141a is disposed on the outer shell of the rotary speed reducer 1a, and a second limiting portion 140a matched with the first limiting portion 141a is disposed on the circumferential direction of the worm wheel 14 a. Through the arrangement of the first limiting part 141a and the second limiting part 140a, the stability of the rotary speed reducer 1a during rotation is ensured to be higher, and secondly, the high safety protection capability is ensured under the condition that an external travel switch fails.

As shown in fig. 14 to 15, in some embodiments, the first limiting portion 141a is at least two convex corners, the convex corners are fixedly connected to the top portion inside the housing of the rotary speed reducer 1a, and the second limiting portion 140a is a convex ring, the convex ring is fixedly connected to the circumferential direction of the worm wheel 14 a.

As shown in fig. 14-15, in some embodiments, the protruding ring occupies half of the circumference of the worm wheel 14a, i.e., half a turn, and when the worm wheel 14a rotates, the protruding ring also rotates, and one of the protruding angles interferes with the incomplete protruding ring to limit the rotation of the worm wheel 14 a. Specifically, a plurality of cover plates 76 are arranged on the shell of the rotary speed reducer 1a, the cover plates 76 can be connected with the shell of the rotary speed reducer 1a in a bolt and nut mode, through the arrangement of the cover plates 76, the shell of the rotary speed reducer 1a has relative sealing performance, external dust is enabled to not easily enter the shell of the rotary speed reducer 1a, the stability of mechanical operation inside the shell of the rotary speed reducer 1a is guaranteed, optionally, support legs 77 connected with stand columns a are arranged outside the shell of the rotary speed reducer 1a, and the support legs 77 can also be used for fixing the shell 70 in a bolt and nut mode

Any embodiment of the invention can be taken as an independent technical scheme, and can also be combined with other embodiments.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.