CN209837808U

CN209837808U - Multifunctional parking device

Info

Publication number: CN209837808U
Application number: CN201920068055.4U
Authority: CN
Inventors: 王育荣; 张敏; 许周凯; 沈星; 丁佳伟; 茅琨
Original assignee: Nanjing Institute of Technology
Current assignee: Nanjing Institute of Technology
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2019-12-24
Anticipated expiration: 2029-01-16

Abstract

The utility model relates to a multi-functional parking equipment, the platelike staple bolt that the level set up, the upper surface both ends of staple bolt be provided with left-handed rotation device and dextrorotation device respectively, the lower surface central point of staple bolt put and be connected with the elevating gear transmission, elevating gear be used for driving the staple bolt and rise or descend, the lower surface both ends of staple bolt be provided with left-handed rotation stake and dextrorotation stake respectively, left-handed rotation device and dextrorotation device homoenergetic are rotatory and launch and form the parking board. The device can be in a bench shape for people to rest, and the attractiveness of the lawn cannot be influenced; when the vehicle owner needs, through rotatory deformation, expand the parking board, adjustment wheel base, parking board height supply the vehicle owner to park. The utility model discloses simple structure, the practicality is stronger, can extensively apply to each district.

Description

Multifunctional parking device

Technical Field

The utility model relates to a parking equipment technical field, specific multi-functional parking equipment that says so.

Background

At present, the economy of China leaps and leaps, but the development speed of parking infrastructure such as urban parking lots lags behind the economic development speed, and the phenomenon of difficult parking is caused by collision of the parking infrastructure and the economic development speed. The space that can be used for parking in the city is obviously not enough, and the severity of this phenomenon has also been excited to the indescriptness phenomenon that a car occupies two parking stalls. Therefore, a large number of parking devices are available on the market. The parking device is a device for parking the automobile through mechanical innovation, structural design and manufacturing. The device is different from a common parking space and mainly shows that: the parking space can be fully utilized, a plurality of vehicles can be parked generally, one vehicle can be parked in a common parking space in the horizontal direction, the utilization rate of the three-dimensional space can be improved, and the parking horizontal two-dimensional space can be saved by parking a plurality of vehicles in the space in the vertical direction of the parking space of the vehicle. And secondly, innovation in structure and design exists, designers often consider mature and master professional knowledge in various fields, a feasible and reliable theoretical idea is manufactured, and the problem of 'difficult parking' is solved by combining different fields. And thirdly, the cost of the parking device is not too high due to the technical and economic indexes of high multiplying power, and the cost performance is high in consideration of the comprehensive factors such as parking efficiency, quantity, occupied area and the like. And the appearance is coordinated, the appearance is not abrupt in the parking environment, the parking device can be perfectly integrated with the visual field of people, the environment cannot be damaged and influenced, and the parking device can be accepted by people. And fifthly, the operation is simple, the operation can be finished by only one driver, and the driver without training can park the automobile easily. And sixthly, the adaptability is strong, and the parking device can be put into use in various environments, so that the parking device has certain environment anti-interference capability. And seventhly, the parking device is safe in structure and can be normally used under the influence of irresistible natural factors such as rain, snow and weather, and the parking device can be used by a vehicle owner with confidence in structural design and appearance.

There is a public area in the cell that is not fully utilized, that is, the lawn. If the public area can be fully utilized on the premise of not influencing the attractive appearance of the lawn and damaging the lawn, the parking device and the lawn coexist harmoniously, and the owners of the residential area can obtain great convenience.

According to investigation of the lawn area of the existing community, the lawn area in the community is large, but the lawn can not be used for parking on the premise of not damaging the lawn, and the edge of the lawn has no bench for people to rest or the number of benches does not meet the use requirement of people. The utility model provides a can combine together parking stall and bench to can freely switch and do not harm the device on meadow, can solve the difficult problem of district parking better.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a multifunctional parking device can expand ordinary bench column structure through folding deformation and form the parking stall, prevents that the in-process wheel that parks from leading to the fact damage on a large scale to the lawn.

In order to solve the technical problem, the utility model discloses a technical scheme does:

a multifunctional parking device is characterized in that: the device comprises a horizontally arranged plate-shaped hoop, wherein a left rotating device and a right rotating device are respectively arranged at two ends of the upper surface of the hoop, the central position of the lower surface of the hoop is in transmission connection with a lifting device, the lifting device is used for driving the hoop to ascend or descend, and a left rotating pile and a right rotating pile are respectively arranged at two ends of the lower surface of the hoop;

the left rotating device comprises a left parking plate and a left rotating frame, a rotating driving device is arranged in the left rotating frame and is in transmission connection with the left parking plate, the left parking plate comprises a first left parking plate and a second left parking plate which are mutually folded, one side edges of the first left parking plate and the second left parking plate, which are far away from the rotating end, are hinged, and the first left parking plate and the second left parking plate can be unfolded through the driving device to be used for supporting wheels;

the right rotating device comprises a right parking plate and a right rotating frame, a rotating driving device is arranged in the right rotating frame, the rotating driving device is in transmission connection with the right parking plate, the right parking plate comprises a first right parking plate and a second right parking plate which are mutually folded, the edges of one side of the first right parking plate and one side of the second right parking plate, which are far away from the rotating end, are hinged, and the first right parking plate and the second right parking plate can be unfolded through the driving device and used for supporting wheels;

the two ends of the side edge of the lifting plate are respectively hinged with the left rotating frame and the right rotating frame.

The lower surface of one end of the second left parking plate is in transmission connection with a rotation driving device in the left rotating frame, the edge of the other end of the second left parking plate is hinged with the edge of the end part of the first left parking plate through a reverse sleeve rod, and a left turnover steering engine is in transmission connection with the reverse sleeve rod which is connected with the first left parking plate and the second left parking plate;

the lower surface of one end of the second right parking plate is in transmission connection with a rotation driving device in the right rotating frame, the edge of the other end of the second right parking plate is hinged with the edge of the end part of the first right parking plate through a reverse loop bar, and a right turnover steering engine is in transmission connection with the reverse loop bar which is connected with the first right parking plate and the second right parking plate;

the two end edges of the upper surfaces of the first left parking plate and the first right parking plate are fixedly provided with fastening handrails, and the fastening handrails are the same in height.

The rotary driving device in the left rotary frame comprises a left rotary motor, the left rotary motor is fixedly installed on the fixed table, an output shaft of the left rotary motor is in transmission connection with a first worm through a first coupler, two ends of the first worm are supported and fixed through first bearing seats, the first worm is in meshing transmission with a first turbine, the upper end of the first turbine is fixedly connected with the lower surface of a second left parking plate through a left flange, and a storage battery is arranged in the left rotary frame.

The rotary driving device in the right rotating frame comprises a right rotating motor, the right rotating motor is fixedly installed on a cloud platform, an output shaft of the right rotating motor is in transmission connection with a second worm through a second coupler, two ends of the second worm are supported and fixed through second bearing seats, the second worm is in meshing transmission with a second turbine, the upper end of the second turbine is fixedly connected with the lower surface of a second right parking plate through a right flange, the cloud platform is fixedly installed on a motor shaft, the motor shaft is in transmission connection with a linear motor, the motor shaft is driven by the linear motor to rotate, and then the cloud platform can be driven to axially move along the motor shaft.

The structure of the left rotating pile is the same as that of the right rotating pile, the left rotating pile and the right rotating pile are both of telescopic structures, the concrete structure of the left rotating pile and the right rotating pile comprises an external sleeve, the external sleeve is fixedly installed on the lower surfaces of a left rotating frame and a right rotating frame, the lower end of the external sleeve is provided with a hole, a guide pillar is embedded in the external sleeve, the diameter of the guide pillar is smaller than the inner diameter of the external sleeve, the lower end of the external sleeve is fixedly installed with an annular seal, the guide pillar penetrates through the annular seal, the guide pillar can axially slide along the external sleeve in the external sleeve, and the bottom end face of the.

Staple bolt central point put and be provided with the connection pad, elevating gear include the lead screw of vertical setting, the top of lead screw and the lower surface in close contact with of connection pad, the bottom and the elevator motor transmission of lead screw be connected, the lead screw pass the fixed plane, fixed plane lower fixed surface install the flange, the central through-hole lateral wall processing of flange have the screw thread, the lead screw pass the flange and be connected with flange engagement, the connection pad pass through the central point of screw fixed mounting at the staple bolt.

The lifting plate is provided with a plurality of grooves at the edge of one side far away from the left rotating frame and the right rotating frame, and rollers are fixedly arranged in the grooves.

The beneficial effect that this kind of multi-functional parking equipment can produce does:

first, combine together parking stall and bench, produce can freely switch and do not harm the parking equipment on meadow.

Secondly, the distance between two left and right parking boards is adjusted to the accessible cloud platform, is applicable to the vehicle of different car widths.

Thirdly, when the whole device falls down, the lifting plate can be outwards unfolded under the extrusion of the fixed plane to form a slope, and the vehicle can be helped to enter the parking plate.

Drawings

Fig. 1 is a schematic structural diagram of the multifunctional parking device when it is folded.

Fig. 2 is a schematic diagram of the structure of the multi-functional parking apparatus when it is deployed.

Fig. 3 is the utility model relates to a structural schematic diagram of multi-functional parking device staple bolt.

Fig. 4 is a schematic structural diagram of the left rotating device of the multi-functional parking apparatus of the present invention.

Fig. 5 is a partial enlarged view of the left rotating device of the multi-functional parking apparatus of the present invention.

Fig. 6 is a schematic structural diagram of a right rotating device of the multi-functional parking apparatus of the present invention.

Fig. 7 is a partial enlarged view of the right rotary device of the multi-functional parking apparatus of the present invention.

Fig. 8 is a schematic structural diagram of a multi-functional parking device lifting device of the present invention.

Fig. 9 is a schematic structural diagram of a lifting plate of the multi-functional parking apparatus of the present invention.

The attached drawings of the specification are marked as follows: 1. a left rotating device; 2. a right rotating device; 3. a lifting device; 4. hooping; 5. a lifting plate; 6. a left parking plate; 7. rotating the pile left; 8. a right parking plate; 9. rightwards rotating the pile; 10. a first left parking plate; 11. a left-turning steering engine; 12. a second left parking plate; 13. reversing the loop bar; 14. a first right parking plate; 15. a right-turn steering engine; 16. a second right parking plate; 17. a left rotating frame; 18. a right rotating frame; 19. a connecting disc; 20. a screw; 21. a storage battery; 22. a guide post; 23. sealing; 24. a first worm; 25. a first turbine; 26. rotating the motor left; 27. a first coupling; 28. a first bearing housing; 29. a fixed table; 30. a left flange plate; 31. a linear motor; 32. a holder; 33. a right rotating electrical machine; 34. a second coupling; 35. a second bearing housing; 36. a second worm; 37. a second turbine; 38. a right flange plate; 39. a motor shaft; 40. a lifting motor; 41. a flange; 42. a lead screw; 43. a groove; 44. and fixing the plane.

Detailed Description

The invention is further described below with reference to the drawings and specific preferred embodiments.

As shown in fig. 1, a multi-functional parking device is characterized in that: the device comprises a plate-shaped hoop 4 which is horizontally arranged, wherein a left rotating device 1 and a right rotating device 2 are respectively arranged at two ends of the upper surface of the hoop 4, the central position of the lower surface of the hoop 4 is in transmission connection with a lifting device 3, the lifting device 3 is used for driving the hoop 4 to ascend or descend, and a left rotating pile 7 and a right rotating pile 9 are respectively arranged at two ends of the lower surface of the hoop 4;

the left rotating device 1 comprises a left parking plate 6 and a left rotating frame 17, a rotating driving device is arranged in the left rotating frame 17 and is in transmission connection with the left parking plate 6, the left parking plate 6 comprises a first left parking plate 10 and a second left parking plate 12 which are mutually folded, the edges of one side of the first left parking plate 10 and one side of the second left parking plate 12, which are far away from the rotating end, are hinged, and the first left parking plate 10 and the second left parking plate 12 can be unfolded through the driving device to be used for supporting wheels;

the right rotating device 2 comprises a right parking plate 8 and a right rotating frame 18, a rotating driving device is arranged in the right rotating frame 18, the rotating driving device is in transmission connection with the right parking plate 8, the right parking plate 8 comprises a first right parking plate 14 and a second right parking plate 16 which are mutually folded, the edges of one side of the first right parking plate 14 and the second right parking plate 16, which are far away from the rotating end, are hinged, and the first right parking plate 14 and the second right parking plate 16 can be unfolded through the driving device to be used for supporting wheels;

the two ends of the side edge of the lifting plate 5 are respectively hinged with a left rotating frame 17 and a right rotating frame 18.

As shown in fig. 2, the lower surface of one end of the second left parking plate 12 is in transmission connection with the rotation driving device in the left rotating frame 17, the edge of the other end is hinged with the edge of the end part of the first left parking plate 10 through a reversing loop bar 13, and the left reversing rudder 11 is in transmission connection with the reversing loop bar 13 connecting the first left parking plate 10 and the second left parking plate 12;

the lower surface of one end of the second right parking plate 16 is in transmission connection with a rotation driving device in the right rotating frame 18, the edge of the other end of the second right parking plate is hinged with the edge of the end part of the first right parking plate 14 through a reverse loop bar 13, and a right turnover steering engine 15 is in transmission connection with the reverse loop bar 13 which is connected with the first right parking plate 14 and the second right parking plate 16;

the edges of the two ends of the upper surface of the first left parking plate 10 and the first right parking plate 14 are fixedly provided with fastening handrails, and the fastening handrails have the same height.

When the device expandes, the rotary driving device in the left revolving rack 17 drives the rotatory 90 of second left parking board 12, the rotary driving device in the right revolving rack 18 drives the rotatory 90 of second right parking board 16, further drive first left parking board 10 upset 180 through the left upset steering wheel, right upset steering wheel 15 drives first right parking board 14 upset 180, at this moment, form two sets of horizontally bearing platform, be used for supporting vehicle both sides wheelset, at this moment, first left parking board 10 and first right parking board 14 upper surface mounting's fastening handrail form strutting arrangement down, the area of contact on parking board and lawn has been reduced, effectual protection lawn is avoided large tracts of land damage.

As shown in fig. 4 and 5, the rotation driving device in the left rotating frame 17 includes a left rotating motor 26, the left rotating motor 26 is fixedly mounted on a fixing table 26, an output shaft of the left rotating motor 26 is in transmission connection with a first worm 24 through a first coupling 27, both ends of the first worm 24 are supported and fixed by a first bearing seat 28, the first worm 24 is in meshing transmission with a first worm wheel 25, an upper end of the first worm wheel 25 is fixedly connected with the lower surface of the second left parking plate 12 through a left flange 30, and a storage battery 21 is arranged in the left rotating frame 17.

The output end of the left rotary motor 26 is matched with a worm gear to output power, the second left parking plate 12 can be stably driven to rotate 90 degrees, and meanwhile, the storage battery 21 arranged in the left rotary frame 17 is used for supplying power for each motor and the control system.

As shown in fig. 6 and 7, the rotation driving device in the right rotating frame 18 includes a right rotating motor 33, the right rotating motor 33 is fixedly mounted on the pan/tilt head 32, an output shaft of the right rotating motor 33 is in transmission connection with a second worm 36 through a second coupling 34, two ends of the second worm 36 are supported and fixed by a second bearing seat 35, the second worm 36 is in meshing transmission with a second worm wheel 37, an upper end of the second worm wheel 37 is fixedly connected with a lower surface of the second right parking plate 16 through a right flange 38, the pan/tilt head 32 is fixedly mounted on a motor shaft 39, the motor shaft 39 is in transmission connection with the linear motor 31, and the motor shaft 39 rotates under the driving of the linear motor 31, so as to drive the pan/tilt head 32 to move axially along the motor shaft 39.

The output end of the right rotating motor 33 is matched with a worm gear to output power, the second right parking plate 16 can be stably driven to rotate by 90 degrees, meanwhile, the linear motor 31 can drive the holder 32 to axially move along the motor shaft 39, and the distance between the left parking plate and the right parking plate is further adjusted.

As shown in fig. 2 and 4, the left rotary pile 7 and the right rotary pile 9 have the same structure and both adopt telescopic structures, and specifically, the structure includes an outer sleeve, the outer sleeve is fixedly installed on the lower surfaces of the left rotary frame 17 and the right rotary frame 18, the lower end of the outer sleeve is provided with a hole, a guide post 22 is nested in the outer sleeve, the diameter of the guide post 22 is smaller than the inner diameter of the outer sleeve, the lower end of the outer sleeve is fixedly installed with an annular seal 23, the guide post 22 passes through the annular seal 23, the guide post 22 can slide axially along the outer sleeve in the outer sleeve, and the bottom end surface of the guide post 22 is fixedly connected with the fixed plane 44.

Left swivel pile 7 and right swivel pile 9 can be flexible along with the whole lift of device, and guide pillar 22 and fixed plane 44 fixed connection have guaranteed that the whole displacement and rotation can not appear in the device, carry on spacingly to the whole device.

As shown in fig. 3 and 8, a connection disc 19 is arranged at the central position of the hoop 4, the lifting device 3 includes a vertically arranged lead screw 42, the top end of the lead screw 42 is in close contact with the lower surface of the connection disc 19, the bottom end of the lead screw 42 is in transmission connection with the lifting motor 40, the lead screw 42 passes through a fixing plane 44, a flange 41 is fixedly arranged on the lower surface of the fixing plane 44, a thread is processed on the side wall of a central through hole of the flange 41, the lead screw 42 passes through the flange 41 and is in meshed connection with the flange 41, and the connection disc 19 is fixedly arranged at the central position of the hoop 4 through a screw 20.

The length of the lead screw 42 between the fixed plane 44 and the hoop 4 is adjusted, so that the lifting of the whole device can be adjusted, the flange 41 is in threaded connection with the lead screw 42, and when the lead screw 42 rotates forwards or backwards in the flange 41, the lead screw is stretched.

As shown in fig. 9, a plurality of grooves 43 are formed in an edge of one side of the landing plate 5 away from the left rotating frame 17 and the right rotating frame 18, and rollers are fixedly mounted in the grooves 43.

In this embodiment, when the device is in the retracted state, the landing plate 5 vertically falls under the action of gravity, when the device is deployed for parking, the whole device falls, at this time, the side surface of the landing plate 5 contacts the fixed plane 44, and the landing plate 5 is deployed outwards under the extrusion of the fixed plane 44 to form a slope, and when the landing plate 5 and the fixed plane 44 form an angle of 30 degrees, the descent is stopped, and the parking operation is performed. The rollers provided at the side edges of the landing plate 5 help to smooth the deployment process of the landing plate 5.

In this embodiment, the fixed plane 44 is fixedly mounted on a fastening plane that cannot be moved, including but not limited to the ground.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.

Claims

1. A multifunctional parking device is characterized in that: the device comprises a plate-shaped hoop (4) which is horizontally arranged, wherein a left rotating device (1) and a right rotating device (2) are respectively arranged at two ends of the upper surface of the hoop (4), the central position of the lower surface of the hoop (4) is in transmission connection with a lifting device (3), the lifting device (3) is used for driving the hoop (4) to ascend or descend, and a left rotating pile (7) and a right rotating pile (9) are respectively arranged at two ends of the lower surface of the hoop (4);

the left rotating device (1) comprises a left parking plate (6) and a left rotating frame (17), a rotating driving device is arranged in the left rotating frame (17), the rotating driving device is in transmission connection with the left parking plate (6), the left parking plate (6) comprises a first left parking plate (10) and a second left parking plate (12) which are mutually folded, the edge of one side of the first left parking plate (10) and the edge of one side of the second left parking plate (12) far away from the rotating end are hinged, and the first left parking plate (10) and the second left parking plate (12) can be unfolded through the driving device to be used for supporting wheels;

the right rotating device (2) comprises a right parking plate (8) and a right rotating frame (18), a rotating driving device is arranged in the right rotating frame (18), the rotating driving device is in transmission connection with the right parking plate (8), the right parking plate (8) comprises a first right parking plate (14) and a second right parking plate (16) which are mutually folded, the edge of one side, far away from the rotating end, of the first right parking plate (14) and the edge of one side, far away from the rotating end, of the second right parking plate (16) are hinged, and the first right parking plate (14) and the second right parking plate (16) can be unfolded through the driving device to be used for supporting wheels;

two ends of the side edge of the lifting plate (5) are respectively hinged with the left rotating frame (17) and the right rotating frame (18).

2. A multi-function parking apparatus as defined in claim 1 wherein: the lower surface of one end of the second left parking plate (12) is in transmission connection with a rotary driving device in the left rotating frame (17), the edge of the other end of the second left parking plate is hinged with the edge of the end part of the first left parking plate (10) through a reverse sleeve rod (13), and a left turnover steering engine (11) is in transmission connection with the reverse sleeve rod (13) which is connected with the first left parking plate (10) and the second left parking plate (12);

the lower surface of one end of the second right parking plate (16) is in transmission connection with a rotary driving device in the right rotating frame (18), the edge of the other end of the second right parking plate is hinged with the edge of the end part of the first right parking plate (14) through a reverse sleeve rod (13), and a right turnover steering engine (15) is in transmission connection with the reverse sleeve rod (13) which is connected with the first right parking plate (14) and the second right parking plate (16);

the two end edges of the upper surfaces of the first left parking plate (10) and the first right parking plate (14) are fixedly provided with fastening handrails, and the fastening handrails are the same in height.

3. A multi-function parking apparatus as defined in claim 2 wherein: the rotary driving device in the left rotating frame (17) comprises a left rotating motor (26), the left rotating motor (26) is fixedly installed on a fixing table (29), an output shaft of the left rotating motor (26) is in transmission connection with a first worm (24) through a first coupler (27), two ends of each first worm (24) are supported and fixed through a first bearing seat (28), the first worm (24) is in meshing transmission with a first turbine (25), the upper end of the first turbine (25) is fixedly connected with the lower surface of a second left parking plate (12) through a left flange plate (30), and a storage battery (21) is arranged in the left rotating frame (17).

4. A multi-function parking apparatus as defined in claim 2 wherein: the rotary driving device in the right rotary frame (18) comprises a right rotary motor (33), the right rotating motor (33) is fixedly arranged on the pan-tilt (32), the output shaft of the right rotating motor (33) is in transmission connection with the second worm (36) through a second coupling (34), both ends of the second worm (36) are supported and fixed by a second bearing seat (35), the second worm (36) is in meshing transmission with a second worm wheel (37), the upper end part of the second worm wheel (37) is fixedly connected with the lower surface of a second right parking plate (16) through a right flange plate (38), the cradle head (32) is fixedly arranged on a motor shaft (39), the motor shaft (39) is in transmission connection with the linear motor (31), the motor shaft (39) is driven by the linear motor (31) to rotate, and then the holder (32) can be driven to move axially along the motor shaft (39).

5. A multi-function parking apparatus as defined in claim 1 wherein: the structure of the left rotary pile (7) is the same as that of the right rotary pile (9), telescopic structures are adopted, the structure of the left rotary pile (7) comprises an outer sleeve, the outer sleeve is fixedly installed on the lower surfaces of a left rotary frame (17) and a right rotary frame (18), the lower end of the outer sleeve is provided with a hole, a guide pillar (22) is embedded in the outer sleeve, the diameter of the guide pillar (22) is smaller than the inner diameter of the outer sleeve, an annular seal (23) is fixedly installed at the lower end of the outer sleeve, the guide pillar (22) penetrates through the annular seal (23), the guide pillar (22) can slide in the outer sleeve along the axial direction of the outer sleeve, and the bottom end face of the guide pillar (22) is fixedly connected with a fixed plane (44).

6. A multi-function parking apparatus as defined in claim 1 wherein: staple bolt (4) central point put and be provided with connection pad (19), elevating gear (3) lead screw (42) including vertical setting, the top of lead screw (42) and the lower surface in close contact with of connection pad (19), the bottom and elevator motor (40) transmission of lead screw (42) be connected, lead screw (42) pass fixed plane (44), fixed plane (44) lower fixed surface install flange (41), the central through-hole lateral wall processing of flange (41) have the screw thread, lead screw (42) pass flange (41) and be connected with flange (41) meshing, connection pad (19) pass through screw (20) fixed mounting in the central point of staple bolt (4).

7. A multi-function parking apparatus as defined in claim 1 wherein: the lifting plate (5) is far away from the edge of one side of the left rotating frame (17) and the right rotating frame (18) and is provided with a plurality of grooves (43), and rollers are fixedly arranged in the grooves (43).