CN210064866U - Half-open nut type in-building straight ladder directly driven by motor - Google Patents
Half-open nut type in-building straight ladder directly driven by motor Download PDFInfo
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- CN210064866U CN210064866U CN201920819818.4U CN201920819818U CN210064866U CN 210064866 U CN210064866 U CN 210064866U CN 201920819818 U CN201920819818 U CN 201920819818U CN 210064866 U CN210064866 U CN 210064866U
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Abstract
A half-open nut type in-building vertical ladder directly driven by a motor comprises two sets of driving devices, two planetary roller screw pairs, two half-open nut rails and a lift car; the two half-open nut rails are symmetrically arranged on two sides of an elevator shaft in a building; the two sets of driving devices are symmetrically arranged at the left and right outer sides of the lift car; the driving motor drives the planetary roller screw pair with the short screw long nut to move through gear transmission, and the screw assembly in the planetary roller screw pair moves linearly relative to the half-open nut to drive the lift car and the driving motor thereof to lift together. The device adopts the structures of a special planetary roller screw pair, a half-open nut, a motor direct drive and the like to realize a safe, reliable, combinable and modularized elevator in the building, has the advantages of simple structure, easy manufacture, convenient maintenance, high positioning precision, stable transmission, large bearing capacity, safety, reliability and the like, and is particularly suitable for being popularized in high-rise buildings.
Description
Technical Field
The utility model belongs to the technical field of mechanical transmission, a straight ladder in half-open nut formula building that motor directly driven is related to for the lift straight ladder of building inside people or goods transport.
Background
In recent years, with the pace of urbanization, high-rise buildings in large, medium, and small cities have been increasing, and elevators have been increasingly used. The structure of the elevator is concerned with the safety of the elevator and the life and property safety of passengers, and also is concerned with the early investment cost and the later use and maintenance cost.
At present, two modes of steel wire traction and spiral slideway guide rails are mostly adopted for common vertical lifting elevators in the market. The steel wire rope traction is a traditional car traction mode, has the advantages of high strength, light dead weight, stable work and the like, but has the advantages of large working torque, short service cycle, difficult maintenance and low reliability of a driving motor. Meanwhile, the steel wire rope is adopted for traction, the length of the steel wire rope is long, the folding frequency is high, and the service life is limited. The spiral slideway guide rail is a novel elevator lifting mode, the lifting of the car is realized by driving the lifting device to move up and down in the corresponding guide rail through the motor, the spiral slideway guide rail has the advantages of large bearing capacity, high reliability and the like, but the spiral slideway guide rail can form the lifting device only by being matched with the corresponding sliding spiral propelling disc, and has the defects of complex structure, difficult maintenance, unstable operation, low transmission efficiency and the like.
Therefore, in order to improve the safety of the elevator, facilitate arrangement and installation in buildings with different heights, have simple structure and reduce the cost of the elevator, the half-open nut type in-building vertical ladder directly driven by the motor is invented, and has important engineering practical value.
Disclosure of Invention
The utility model provides a half-open nut formula building internal straight ladder that motor directly driven for building inside people or the automatic straight ladder that the goods was carried.
A technical scheme that a half-open nut type in-building vertical ladder directly driven by a motor adopts is as follows:
the device consists of two sets of driving devices, two planetary roller screw pairs, two half-opened nut tracks and a lift car 9; two half-open nut rails are symmetrically and fixedly supported on two sides of a vertical shaft for mounting a vertical ladder in a building; the two sets of driving devices are symmetrically arranged on the left and right outer sides of the car 9, the driving devices are fixedly connected to the outer side wall of the car 9, and a planetary roller screw pair in the driving devices drives the car 9 to lift along the axial direction along the half-open nut rails symmetrically arranged on the two sides;
the planetary roller screw pair consists of a plurality of rollers 4, two retainers 5, a screw 7 and a plurality of half-opened nuts 8; the axial length of the single half-opened nut 8 is far longer than that of the screw rod 7 and the roller 4; the roller 4 is divided into five sections, the middle part is an external thread section, and two sides of the external thread are symmetrically provided with an external tooth section and a cylindrical section; the screw 7 is divided into five sections, the middle is an external thread section, two sides of the external thread are symmetrically provided with an external tooth section and a cylindrical section, the cylindrical section is sleeved with a chain plate 6 and a retainer 5 in a hollow way, and a transmission gear 10 is installed through a key; the external thread section of the roller 4 is meshed with the external thread section of the screw 7, and the external tooth section of the roller 4 is meshed with the external tooth section of the screw 7; the retainer 5 is in a shape of a circular cake with a central hole and a plurality of radial uniformly-distributed holes, the cylindrical sections of the plurality of rollers 4 are matched with the radial uniformly-distributed holes of the retainer 5, the cylindrical section of the screw 7 penetrates through the central hole of the retainer 5, and the plurality of rollers 4 are uniformly distributed on the outer side of the screw 7 through the two retainers 5 to form a screw component of the planetary roller screw pair; the screw rod assembly is arranged in the half-open nut 8, and the external threads of the rollers 4 are in contact with the internal threads of the half-open nut 8; two ends of the screw rod component are connected with transmission gears 10, chain plates 6 are sleeved in an empty mode, and the transmission gears 10 and the chain plates 6 are located at the opening positions of the half-open nuts 8.
The driving device consists of a driving motor 1, a gear 2, an idler wheel 3, a chain plate 6, a transmission gear 10, a gear shaft 11, an idler wheel shaft 12 and a planetary roller screw pair; the gear shaft 11 is directly used as a rotor of the driving motor 1 and is integrated in the driving motor 1; the shell of the driving motor 1 is fixedly connected to the left side and the right side of the lift car 9 through bolts; the gear 2, the idle gear 3 and transmission gears 10 at two ends of a screw 7 in the planetary roller screw pair form a gear train, power is transmitted by mutual meshing, and the screw 7, a gear shaft 11 and an idle gear shaft 12 are connected together by a chain plate 6.
The half-open nut track is formed by axially overlapping a plurality of half-open nuts 8, and the length of the overlapped half-open nuts is the same as the height of the half-open nuts to be lifted in a floor; the half-opened nuts 8 are part of the planetary roller screw pair, end flanges of two adjacent half-opened nuts 8 are fixedly connected by bolts, the structural shapes of all the half-opened nuts 8 are the same, and the opening directions are the same; the half-open nut is formed by connecting a half-open nut 8 with an opening on the side and internal threads through a plurality of bolts; half nut 8 inboard screw constitutes the nut of planet roller screw pair, and half nut 8 both sides terminal surface has the evagination flange of open-ended, and the through-hole of construction bolt has evenly been arranged to the evagination flange, can realize that half nut 8 of different quantity assembles the combination to realize the long stroke motion of car 9.
The utility model has the advantages that: a half-open nut type in-building vertical ladder directly driven by a motor adopts a mode of superposing a plurality of half-open nuts 8 with the same structure to realize the lifting guide rail and the support of an elevator car and realize the modularization of the lifting height adjustment of the elevator; the self-locking performance of the elevator car is improved by adopting the special screw transmission of the planetary roller screw pair, the safety of the elevator is improved, the overall structure of the elevator is simplified by adopting a gear transmission and motor direct drive method, and the elevator car has the advantages of small volume, simple structure, high transmission efficiency and the like.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a top view of the overall structure of the present invention.
Fig. 3 is a diagram of the single-side driving device of the present invention.
Fig. 4 is a diagram of the driving transmission assembly of the present invention.
Fig. 5 is a structural view of a single half nut of the present invention.
Fig. 6 is a structure view of the screw of the present invention.
Fig. 7 is a structure view of a screw assembly in the planetary roller screw pair of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, a half-open nut type in-building vertical ladder directly driven by a motor is composed of two sets of driving devices, two planetary ball screws, two half-open nut tracks and a lift car 9; two half-open nut rails are symmetrically and fixedly supported on two sides of a vertical shaft for mounting a vertical ladder in a building; the two sets of driving devices are symmetrically arranged on the left outer side and the right outer side of the car 9 and fixedly supported on the outer side wall of the car 9, and the driving devices drive the planetary ball screw mechanism to drive the car 9 to vertically lift along the half-open nut rails symmetrically arranged on the two sides.
As shown in figure 2, two sets of gear sets are symmetrically arranged at two ends of a gear shaft 11, the gear sets are in meshing transmission through an idler wheel 3 by a gear 2 and a transmission gear 10, two sides of the gear sets are fixedly connected through a chain plate 6, the transmission gear 10 is installed on an axially extending rod of a lead screw 7 through a key, and driving devices are symmetrically arranged at two sides of a car 9.
As shown in figure 3, gears 2 symmetrically arranged on two sides of a driving motor 1 serve as a rotor driving gear set of the driving motor to rotate, a transmission gear 10 rotates to drive a planetary ball screw mechanism to move, balls 4 of the planetary ball screw mechanism and internal threads of a half-open nut 8 are meshed to move, and a car 9 fixedly connected with the driving motor 1 is driven to move axially through a fixed support of a chain plate 6.
As shown in fig. 4, when the driving motor 1 drives the driving gear set to rotate the transmission gear 10, the transmission gear 10 drives the screw 7 to rotate and simultaneously drives the planetary ball screw mechanism to rotate, and the planetary ball screw mechanism is installed in a limiting manner through the retainers 5 symmetrically arranged on both sides, so that the balls 4 uniformly arranged along the axial upper circumference of the screw 7 rotate.
As shown in fig. 5, the inner side threads of the half-open nuts 8 are engaged with the planetary ball screw mechanism to move, and through holes are uniformly distributed on the circumferences of the end surfaces on two sides, so that the half-open nuts 8 with different quantities can be assembled and combined to realize the movement of the cage 9 with the nut group reaching a long stroke.
As shown in figure 6, the screw 7 is divided into five sections, the middle is an external thread section, two sides of the external thread are symmetrically provided with an external tooth section and a cylindrical section, the cylindrical section is sleeved with the chain plate 6 and the retainer 5 in a hollow way, and the transmission gear 10 is installed through a key.
As shown in fig. 7, the screw assembly in the planetary roller screw pair is composed of a plurality of rollers 4, two retainers 5 and a screw 7; the roller 4 is divided into five sections, the middle is an external thread section, and an external tooth section and a cylindrical section are symmetrically arranged on two sides of the external thread.
The external thread section of the roller 4 is meshed with the external thread section of the screw 7, and the external tooth section of the roller 4 is meshed with the external tooth section of the screw 7; the retainer 5 is in a shape of a circular cake with a central hole and a plurality of radial uniformly-distributed holes, the cylindrical sections of the plurality of rollers 4 are matched with the radial uniformly-distributed holes of the retainer 5, the cylindrical section of the screw 7 penetrates through the central hole of the retainer 5, and the plurality of rollers 4 are uniformly distributed on the outer side of the screw 7 through the two retainers 5 to form a screw component of the planetary roller screw pair; the screw rod assembly is arranged in the half-open nut 8, and the external threads of the rollers 4 are in contact with the internal threads of the half-open nut 8; two ends of the screw rod component are connected with transmission gears 10, chain plates 6 are sleeved in an empty mode, and the transmission gears 10 and the chain plates 6 are located at the opening positions of the half-open nuts 8. The balls 4 evenly distributed on the planetary ball screw along the circumference of the screw 7 are meshed with the internal thread of the half-open nut 8, and a screw nut mechanism consisting of the planetary ball screw and the half-open nut 8 drives the lift car 9 to move axially.
The utility model discloses a working process:
when a driving motor 1 which is arranged on two sides of a car 9 and fixedly connected with the car 9 is started, the driving motor 1 drives a gear 2 through a gear shaft 11 and transmits the gear to a transmission gear 10 through an idler wheel 3, the transmission gear 10 drives a lead screw 7, the lead screw 7 is transmitted through a plurality of rollers 4 and moves axially relative to a half-open nut 8, and the car 9 ascends or descends relative to a half-open nut track; when the driving motor 1 rotates reversely, the moving direction of the car 9 relative to the half nut track is opposite; when the driving motor 1 stops, the position of the car 9 relative to the half-open nut track is fixed due to the self-locking performance of the planetary roller screw pair and the tightly-holding braking device of the driving motor 1, and the car 9 can be guaranteed to safely stop at a certain floor position even if mechanical or electrical faults occur. The starting, stopping, reversing etc. operation of the drive motor 1 is performed by the electrical control unit of the elevator.
Claims (3)
1. The utility model provides a half division of nut formula building internal straight ladder that motor directly driven which characterized in that: the device consists of two sets of driving devices, two planetary roller screw pairs, two half-opened nut tracks and a lift car (9); two half-open nut rails are symmetrically and fixedly supported on two sides of a vertical shaft for mounting a vertical ladder in a building; the two sets of driving devices are symmetrically arranged on the left outer side and the right outer side of the lift car (9), the driving devices are fixedly connected to the outer side wall of the lift car (9), and a planetary roller screw pair in the driving devices drives the lift car (9) to lift along the axial direction along the half-open nut rails symmetrically arranged on the two sides;
the planetary roller screw pair consists of a plurality of rollers (4), two retainers (5), a screw (7) and a plurality of half-opened nuts (8); the axial length of the single half-opened nut (8) is far greater than that of the screw rod (7) and the roller (4); the roller (4) is divided into five sections, the middle part is an external thread section, and two sides of the external thread are symmetrically provided with an external tooth section and a cylindrical section; the screw rod (7) is divided into five sections, the middle part is an external thread section, two sides of the external thread are symmetrically provided with an external tooth section and a cylindrical section, a chain plate (6) and a retainer (5) are sleeved in the cylindrical section in a hollow way, and a transmission gear (10) is installed through a key; the external thread section of the roller (4) is meshed with the external thread section of the screw rod (7) in the axial direction, and the external tooth section of the roller (4) is meshed with the external tooth section of the screw rod (7); the retainer (5) is in a round cake shape with a central hole and a plurality of radial uniformly-distributed holes, the cylindrical sections of the plurality of rollers (4) are matched with the radial uniformly-distributed holes of the retainer (5), the cylindrical section of the screw rod (7) passes through the central hole of the retainer (5), and the plurality of rollers (4) are uniformly distributed on the outer side of the screw rod (7) through the two retainers (5) to form a screw rod component of the planetary roller screw rod pair; the screw rod assembly is arranged in the half-open nut (8), and the external threads of the rollers (4) are in contact with the internal threads of the half-open nut (8); two ends of the screw rod component are connected with transmission gears (10), chain plates (6) are sleeved in an empty mode, and the transmission gears (10) and the chain plates (6) are located at the opening positions of the half-open nuts (8).
2. The motor-driven half-opened nut type in-building vertical ladder as claimed in claim 1, wherein: the driving device consists of a driving motor (1), a gear (2), an idler (3), a chain plate (6), a transmission gear (10), a gear shaft (11), an idler shaft (12) and a planetary roller screw pair; the gear shaft (11) is directly used as a rotor of the driving motor (1) and integrated in the driving motor (1); the shell of the driving motor (1) is fixedly connected to the left side and the right side of the lift car (9) through bolts; the gear (2), the idler (3) and transmission gears (10) at two ends of a screw rod (7) in the planetary roller screw pair form a gear train, power is transmitted by mutual meshing, and the screw rod (7), a gear shaft (11) and an idler shaft (12) are connected together by a chain plate (6).
3. The motor-driven half-opened nut type in-building vertical ladder as claimed in claim 1, wherein: the half-open nut track is formed by axially overlapping a plurality of half-open nuts (8), and the length after overlapping is the same as the height required to be lifted in a floor; the half-opened nuts (8) are part of the planetary roller screw pair, end flanges of two adjacent half-opened nuts (8) are fixedly connected by bolts, the structural configurations of all the half-opened nuts (8) are the same, and the opening directions are the same; the semi-open nut is formed by connecting a semi-open nut (8) with an opening on the side surface and internal threads through a plurality of bolts; half nut (8) inboard screw constitutes the nut of planet roller screw pair, and half nut (8) both sides terminal surface has the evagination flange of open-ended, and the through-hole of construction bolt has evenly been arranged to the evagination flange, can realize that half nut (8) of different quantity assemble the combination to realize the long stroke motion of car (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920819818.4U CN210064866U (en) | 2019-06-03 | 2019-06-03 | Half-open nut type in-building straight ladder directly driven by motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920819818.4U CN210064866U (en) | 2019-06-03 | 2019-06-03 | Half-open nut type in-building straight ladder directly driven by motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210064866U true CN210064866U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920819818.4U Expired - Fee Related CN210064866U (en) | 2019-06-03 | 2019-06-03 | Half-open nut type in-building straight ladder directly driven by motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210064866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092271A (en) * | 2019-06-03 | 2019-08-06 | 陕西理工大学 | Vertical ladder in the half-open nut type building of electric-machine directly-driven |
-
2019
- 2019-06-03 CN CN201920819818.4U patent/CN210064866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092271A (en) * | 2019-06-03 | 2019-08-06 | 陕西理工大学 | Vertical ladder in the half-open nut type building of electric-machine directly-driven |
| CN110092271B (en) * | 2019-06-03 | 2024-01-05 | 陕西理工大学 | Half-open nut type in-building straight ladder directly driven by motor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200214 |
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| CF01 | Termination of patent right due to non-payment of annual fee |