CN115535793A - Force application mechanism for multi-car parallel elevator - Google Patents
Force application mechanism for multi-car parallel elevator Download PDFInfo
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- CN115535793A CN115535793A CN202110471661.2A CN202110471661A CN115535793A CN 115535793 A CN115535793 A CN 115535793A CN 202110471661 A CN202110471661 A CN 202110471661A CN 115535793 A CN115535793 A CN 115535793A
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- force application
- force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/04—Riding means, e.g. Shoes, Rollers, between car and guiding means, e.g. rails, ropes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Friction Gearing (AREA)
Abstract
The invention provides a force application mechanism for a multi-car parallel elevator, which comprises a car, a track, a power device, a plurality of friction driving wheels and a plurality of transmission shafts, wherein the power device drives the friction driving wheels to rotate through the transmission shafts, the friction driving wheels are symmetrically arranged and attached to two side track surfaces of the track, the friction driving wheels which are symmetrically arranged on two sides of the track are tightly pressed on the two side track surfaces through a group of force application mechanisms, each force application mechanism comprises at least one group of force application components and two force application bases, the two force application bases are respectively connected with the transmission shafts corresponding to the friction driving wheels, the two force application bases are connected through the at least one group of force application components, and at least one group of elastic components are arranged at the joint of the at least one group of force application components and the force application bases. The force application assembly enables the driving tire to tightly press the track, and the elastic assembly can buffer the larger impact force generated by the friction driving wheel on the force application mechanism, so that the possibility of stress deformation or fatigue damage and fracture of the force application mechanism is reduced.
Description
Technical Field
The invention belongs to the technical field of elevators, and particularly relates to a force application mechanism for a multi-car parallel elevator.
Background
Elevators have become an indispensable manned or cargo vertical transport vehicle in modern society and economic activities. From 1854 years elevator utility model come, elevator car adopts wire rope sheave always to tow driven mode operation, through setting up computer lab, traction motor and decelerator at the building top layer, drives wire rope and moves on the track in the well with pulling car and counter weight. The driving mode enables only one car to normally run in a single shaft, and the elevator in the single-car running mode can meet the use requirement on low-rise buildings and floors with small passenger flow. With the rapid development of modern cities, high-rise buildings and super high-rise buildings with large population density are pulled out, the defects of long elevator waiting time and low conveying efficiency of the elevator in a single-car operation mode are continuously enlarged, and the traditional single-car elevator operation mode is difficult to adapt to the rapid development requirements of modern city buildings.
In order to improve the building space utilization rate and the elevator conveying efficiency and reduce the construction cost of buildings and elevators, a multi-car parallel elevator is being developed and applied along with the continuous development of the engineering technical level. The multi-car parallel elevator adopts the direct drive technology without the traction steel wire rope, so that a plurality of elevator cars can be operated simultaneously in the same shaft, and the elevators among the shafts can be switched to operate in the shafts, so as to realize the overrunning operation.
The force application unit related in the patent application with the applicant application number of 2020107515964 applies a pulling and pressing force to the execution unit to enable the driving wheels and the running track to generate a positive pressure, so that an effective friction force is obtained, and a lifting force required for lifting the car is generated by combining the driving of the transmission unit, wherein four driving wheels are arranged, two driving wheels are arranged on each side of the track, and the two driving wheels on each side of the track are connected together for the convenience of installation and running.
For a multi-car parallel elevator system, cars need to be switched among different hoistways through switching tracks, the switching tracks comprise arc tracks and inclined tracks, namely the tracks comprise straight tracks, arc tracks and inclined tracks, and the cars need to run on the straight tracks, the arc tracks and the inclined tracks during running. When four drive wheels operate on the straight rail, the force application unit is stressed uniformly everywhere, when four drive wheels operate on the arc rail or pass through the uneven position of the rail, the rail can generate a force deviating from the direction of the rail surface to the drive wheels, the force of the rail, which is applied to the drive wheels, is transmitted to the force application unit to form a larger impact force, the force application unit is easily deformed by stress or damaged by fatigue and broken, the friction drive force is reduced and lost, and the slide and the falling risk are caused.
Disclosure of Invention
The invention aims to provide a force application mechanism for a multi-car parallel elevator, which generates a force application load through a force application component to enable a driving tire to press a track so as to generate a friction driving force, plays a role in keeping and relieving impact on the force applied to the force application mechanism through an elastic component so as to enable a friction driving wheel to generate larger impact force on the force application mechanism through the friction driving wheel when the friction driving wheel passes through uneven positions of the track or an arc track, reduces the possibility of deformation, fatigue damage and fracture of the force application mechanism due to force application, ensures reliable friction driving force, avoids slide and falling risks, and can ensure that the tire is in a positive pressure state on a track surface and relieve the degree that the friction driving wheel obliquely presses the running track through adjusting the relative positions of a first force application component and a second force application component.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a forcing mechanism for parallel elevator of many cars, the elevator includes car, track, power device, a plurality of friction drive wheel and a plurality of transmission shaft, and power device passes through the transmission shaft and drives the friction drive wheel and rotate, and a plurality of friction drive wheel symmetries are laid and are laminated in orbital both sides track face, and a plurality of friction drive wheels of track bilateral symmetry compress tightly on both sides track face through a set of forcing mechanism, forcing mechanism includes at least a set of application of force subassembly and two application of force bases, and two application of force bases are connected a plurality of transmission shafts that correspond with a plurality of friction drive wheel respectively, and two application of force bases are connected through at least a set of application of force subassembly, and the junction of at least a set of application of force subassembly and application of force base is equipped with at least a set of elastic component.
As a further improvement of the above technical solution:
the friction driving device is provided with a first force application assembly and a second force application assembly, wherein the second force application assembly is positioned between the friction driving wheel and the first force application assembly, and the joint of the first force application assembly and the force application base is provided with at least one group of elastic assemblies.
The first force application assembly is an electric push rod, a hydraulic push rod or a pneumatic push rod, one end of the first force application assembly is connected to one force application base, and the other end of the first force application assembly is connected to the other force application base.
The first force application assembly comprises a first stud and at least two first adjusting nuts, the first stud penetrates through the two force application bases and supports the two force application bases through the first adjusting nuts in a locking mode, and the first adjusting nuts screwed on the first stud are located between the two force application bases.
The first force application assembly further comprises two first locking nuts, the two first locking nuts are not located between the two force application bases, and the two first locking nuts are arranged at two ends of the first stud respectively.
An elastic component is arranged between each force application base and the first adjusting nut which is close to the force application base.
Elastic components are arranged on the first studs on two sides of each force application base.
An elastic component is arranged between the at least one first locking nut and the force application base.
The second force application assembly comprises a second bolt and a second locking nut, the second bolt penetrates through the two force application bases and then is locked through the second locking nut, an elastic assembly is arranged between the head of the second bolt and one force application base, and an elastic assembly is arranged between the second locking nut and the other force application base.
The second force application assembly further comprises at least one third locking limiting nut, the third locking limiting nut is located between the two force application bases, and an elastic assembly is arranged between the third locking limiting nut and the force application base which is close to the third locking limiting nut.
The second force application assembly is a hinge, and the two force application bases are hinged through the second force application assembly.
The second force application assembly comprises a hinged shaft, and the hinged shaft simultaneously penetrates through the two force application bases.
The invention has the beneficial effects that: the elastic component is arranged to keep and relieve impact on the force applied to the force applying mechanism, so that when the friction driving wheel passes through uneven positions of the track or an arc track, the friction driving wheel can buffer larger impact force generated by the friction driving wheel to the force applying mechanism, the possibility of deformation or fatigue damage and fracture of the force applying mechanism under stress is reduced, reliable friction driving force is ensured, the slide and falling risks are avoided, meanwhile, the tire can be ensured to be in a positive pressure track surface by adjusting the relative positions of the first force applying component and the second force applying component, the degree that the friction driving wheel obliquely presses the running track can be relieved, and the stability and reliability of the friction driving force are ensured; the force application mechanism can further ensure the synchronism and the coordination of the two force application bases relative to the track motion.
Drawings
FIG. 1 is a schematic illustration of the arcuate track of the present invention producing a force on a friction drive wheel in a direction away from the track.
Fig. 2 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a third embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
For ease of description, spatially relative terms such as "over 8230," "upper surface," "above," and the like may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The utility model provides a forcing mechanism for parallel elevator of many cars, the elevator includes car, track 5, power device, a plurality of friction drive wheel 4 and a plurality of transmission shaft 6, and power device passes through transmission shaft 6 and drives friction drive wheel 4 and rotate, and a plurality of friction drive wheel 4 symmetries are laid and are laminated in track 5's both sides track face, and a plurality of friction drive wheel 4 of track 5 bilateral symmetry compress tightly on both sides track face through a set of forcing mechanism. The force application mechanism applies acting force to the friction driving wheel 4 to enable the friction driving wheel to press the track 5, and the lifting force required by lifting the car is generated by combining the driving of the power device. Preferably, two friction driving wheels 4 symmetrical on two sides of the track 5 are pressed on two track surfaces on two sides through a group of force application mechanisms.
Force mechanism includes at least a set of application of force subassembly and two application of force bases 1, and a plurality of transmission shafts 6 that correspond with a plurality of friction drive wheel 4 are connected respectively to two application of force bases 1, and two application of force bases 1 are connected through at least a set of application of force subassembly, and at least a set of elastic component 3 is equipped with to at least a set of application of force subassembly and application of force base 1's junction.
When being equipped with multiunit application of force subassembly, multiunit application of force subassembly is at the direction that is on a parallel with transmission shaft 6 interval arrangement, and at least one of them group of application of force subassembly and application of force base 1's junction is equipped with at least a set of elastic component 3.
Preferably, two sets of force application assemblies, namely a first force application assembly and a second force application assembly, are arranged.
The drive shaft 6 is rotatably mounted on a bearing block by means of bearings. Force application base 1 includes the L shaped plate of two relative staggered floor settings, and one of them L shaped plate is connected with the bearing frame fixed connection of transmission shaft 6, and another L shaped plate is connected with first force application subassembly and second force application subassembly. The two L-shaped plates of the force application base 1 are connected by at least one reinforcing connecting piece 1-1. Thus, the force application base 1 can be connected with the transmission shaft 6 and simultaneously does not influence the rotation of the transmission shaft 6. Preferably, the reinforcing connecting piece 1-1 is a standard bolt which mainly bears tension and pressure and enhances the overall strength and rigidity of the force application base 1.
The first force application assembly and the second force application assembly are arranged in a direction parallel to the transmission shaft 6 at intervals, the second force application assembly is located between the friction driving wheel 4 and the first force application assembly, and at least one group of elastic assemblies 3 are arranged at the joint of the first force application assembly and the force application base 1.
For ease of installation and layout, the first and second force applying assemblies are typically mounted on the same side of the rail 5 or friction drive wheel 4, in particular, on the same side of the plane in which the friction drive wheel 4 lies. However, when a plurality of friction driving wheels 4 run on an arc track or pass through uneven positions of the track 5, the track 5 generates a force F in a direction away from the track 5 to the friction driving wheels 4, as shown in fig. 1 to 4, so that the friction driving wheels 4 are obliquely pressed against the running track 5, the tread of the friction driving wheels 4 is unevenly stressed, or the friction driving wheels 4 are unevenly stressed in a direction parallel to the transmission shaft 6, and the smoothness and reliability of the friction driving force are affected. In addition, the friction driving wheel 4 transmits the received force of the rail 5 to the force application mechanism, so that the service life and the performance of the force application mechanism are influenced, and higher requirements are provided for the bearing performance and the stability of the force application mechanism.
Through setting up elastic component 3, play the cushioning effect, when making friction drive wheel 4 pass through the inhomogeneous department of track 5 or arc track 5, can cushion friction drive wheel 4 right application of force mechanism produces great impact force, reduces application of force mechanism atress deformation or fatigue damage, cracked possibility, guarantees reliable friction drive power, avoids appearing the slide, the risk of falling. Meanwhile, the degree that the friction driving wheel 4 presses the running track 5 in an inclined mode can be relieved, and the stability and the reliability of the friction driving force are guaranteed.
The elastic component 3 is a spring, preferably a disc spring, and has the advantages of large bearing load, small occupied space and simple and compact integral structure.
Three examples are specifically described below.
Example one
The two force application bases 1 can move relatively, and the two force application bases 1 are driven by the force application assembly to move so as to reduce or increase the distance between the two force application bases 1.
The first force application assembly comprises a first stud 2-1, a first locking nut 2-2 and two first adjusting nuts 2-3, the two ends of the first stud 2-1 are respectively locked through the first locking nut 2-2 after penetrating through the two force application bases 1, the first locking nut 2-2 is not located between the two force application bases 1, and the two first adjusting nuts 2-3 screwed on the first stud 2-1 are located between the two force application bases 1. Specifically, one L-shaped plate of the force application base 1 is connected with a bearing seat of one transmission shaft 6, and the other L-shaped plate is connected with one L-shaped plate of the other force application base 1. That is, the first stud 2-1 passes through two L-shaped plates of the two force application bases 1 which are not connected with the transmission shaft 6. An elastic component 3 is arranged between each force application base 1 and the first adjusting nut 2-3 which is closer to the force application base, namely, the elastic component 3 is arranged between the first adjusting nut 2-3 and the force application base 1.
The second force application assembly comprises a second bolt 2-1 'and a second locking nut 2-2', the second bolt 2-1 'penetrates through the two force application bases 1 and then is locked through the second locking nut 2-2', an elastic assembly 3 is arranged between the head of the second bolt 2-1 'and one force application base 1, and the elastic assembly 3 is arranged between the second locking nut 2-2' and the other force application base 1. Similarly, the second bolt 2-1' passes through two L-shaped plates of the two force applying bases 1 which are not connected with the transmission shaft 6.
Preferably, the second force application assembly further comprises at least one third locking limit nut, the third locking limit nut is located between the two force application bases 1, and an elastic assembly 3 is arranged between the third locking limit nut and the force application base 1 which is closer to the third locking limit nut.
When the friction driving wheel 4 passes through an arc rail or an uneven part of the rail, so that the rail 5 generates a force in a direction away from the rail 5 to the friction driving wheel 4, the first stud 2-1 of the first force application assembly far away from the friction driving wheel 4 bears a pressure, and the second stud 2-1' of the second force application assembly near the friction driving wheel 4 bears a tension. The distance between the two force application bases 1 can be adjusted by adjusting the first locking nut 2-2, the two first adjusting nuts 2-3, the second bolt 2-1', the second locking nut 2-2' and the third locking limiting nut, so that the pressure of the friction driving wheels 4 can be adjusted by the force application bases 1, the two force application bases 1 apply equal force to the friction driving wheels 4 on the two sides, and symmetrical force application is realized. The first force application assembly and the second force application assembly are matched to simultaneously play a role in the movement compensation and adjustment of mutual deformation.
In this embodiment, the first force application assembly is of a screw bolt structure, and the distance between the two force application bases 1 is adjusted by adjusting the first lock nuts 2-2, so as to adjust the force application of the force application bases 1 to the friction driving wheel 4 and enable the driving wheel 4 to be in positive pressure on the track surface.
It should be noted that the first stud 2-1 can be replaced by a bolt, i.e. the bolt itself has a bolt head, and only one first lock nut 2-2 is needed, i.e. the first lock nut 2-2 is screwed with the bolt, so that the part between the bolt head and the first lock nut 2-2 can be locked.
It should be noted that the first force application assembly can also be an electric, hydraulic, pneumatic or other push rod mechanism, and the two force application bases 1 are driven by the push rod to move so as to adjust the distance between the two force application bases 1, and further adjust the force application size of the force application bases 1 to the friction drive wheel 4 and enable the drive wheel to be in positive pressure on the track surface. Specifically, the base of the push rod mechanism is connected to one force application base 1, and the push rod shaft of the push rod mechanism is connected to the other force application base 1.
Example two
Different from the first embodiment, in the present embodiment, the first studs 2-1 on both sides of each force applying base 1 are provided with elastic components 3. Specifically, an elastic component 3 is arranged between each force application base 1 and a first adjusting nut 2-3 which is close to the force application base 1, and the elastic component 3 is arranged between the first locking nut 2-2 and the force application base 1.
EXAMPLE III
In this embodiment, the second force application assembly is a hinge, and the two force application bases 1 are hinged through the second force application assembly. The second force application assembly comprises a hinged shaft 1-2, and the hinged shaft simultaneously penetrates through the two force application bases 1. Compared with the first embodiment and the second embodiment, the distance between the first force application component and the second force application component is larger, namely, the force arm is increased, and the force-saving lever structure is realized through the hinge shaft 1-2 and the hinge revolute pair formed by the two force application bases 1.
Therefore, the stress arm of the first stud 2-1 can be increased by increasing the distance between the first force application assembly and the second force application assembly, so that the stress of the first stud 2-1 and the elastic assembly 3 is reduced, and the requirements on the performances of the first stud 2-1 and the elastic assembly 3 are reduced. In addition, when the pressure of the second force application component is adjusted, namely the first locking nut 2-2 and the first adjusting nut 2-3 are adjusted, the two force application bases 1 symmetrically rotate around the hinge shaft 1-2, and the pressing force of the friction driving wheel 4 is symmetrically and uniformly adjusted. Compared with the second force application assembly of the first embodiment and the second embodiment, the second force application assembly of the present embodiment is provided in a hinge manner, which is simpler, more compact, and saves space, and reduces the adjustment process of the bolt pressure.
Finally, it must be said here that: the above embodiments are only used for further elaborating the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the insubstantial modifications and adaptations made by those skilled in the art based on the above descriptions of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a forcing mechanism for parallel elevator of many cars, the elevator includes car, track (5), power device, a plurality of friction drive wheel (4) and a plurality of transmission shaft (6), and power device passes through transmission shaft (6) and drives friction drive wheel (4) and rotate, its characterized in that, and a plurality of friction drive wheel (4) symmetry are laid and are laminated in the both sides track face of track (5), and a plurality of friction drive wheel (4) of track (5) bilateral symmetry compress tightly on the track face of both sides through a set of forcing mechanism, forcing mechanism includes at least a set of force application subassembly and two force application bases (1), and a plurality of transmission shaft (6) that correspond with a plurality of friction drive wheel (4) are connected respectively in two force application bases (1), and two force application bases (1) are connected through at least a set of force application subassembly, and the junction of at least a set of force application subassembly and force application base (1) is equipped with at least a set of elastic component (3).
2. The force applying mechanism of claim 1 wherein: be equipped with the two sets of application of force subassemblies of first application of force subassembly and second application of force subassembly, second application of force subassembly is located between friction drive wheel (4) and the first application of force subassembly, and the junction of first application of force subassembly and application of force base (1) is equipped with at least a set of elastic component (3).
3. The force applying mechanism of claim 2, wherein: the first force application assembly is an electric push rod, a hydraulic push rod or a pneumatic push rod, one end of the first force application assembly is connected to one force application base (1), and the other end of the first force application assembly is connected to the other force application base (1).
4. The force applying mechanism of claim 2, wherein: the first force application assembly comprises a first stud (2-1) and at least two first adjusting nuts (2-3), the first stud (2-1) penetrates through the two force application bases (1) and supports the two force application bases (1) through the first adjusting nuts (2-3) in a locking mode, and the first adjusting nuts (2-3) screwed on the first stud (2-1) are located between the two force application bases (1).
5. The force applying mechanism of claim 4, wherein: the first force application assembly further comprises two first locking nuts (2-2), the two first locking nuts (2-2) are not located between the two force application bases (1), and the two first locking nuts (2-2) are respectively arranged at two ends of the first stud (2-1).
6. The force applying mechanism of claim 4 wherein: an elastic component (3) is arranged between each force application base (1) and the first adjusting nut (2-3) which is close to the force application base.
7. The force applying mechanism of claim 4 wherein: elastic components (3) are arranged on the first studs (2-1) on two sides of each force application base (1).
8. The force applying mechanism of claim 6, wherein: an elastic component (3) is arranged between the at least one first locking nut (2-2) and the force application base (1).
9. The force applying mechanism according to any one of claims 5 to 7, wherein: the second force application assembly comprises a second bolt (2-1 ') and a second locking nut (2-2'), the second bolt (2-1 ') penetrates through the two force application bases (1) and then is locked through the second locking nut (2-2'), an elastic assembly (3) is arranged between the head of the second bolt (2-1 ') and one force application base (1), and the elastic assembly (3) is arranged between the second locking nut (2-2') and the other force application base (1).
10. The force applying mechanism of claim 4 wherein: the second force application assembly is a hinge, and the two force application bases (1) are hinged through the second force application assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471661.2A CN115535793A (en) | 2021-04-29 | 2021-04-29 | Force application mechanism for multi-car parallel elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471661.2A CN115535793A (en) | 2021-04-29 | 2021-04-29 | Force application mechanism for multi-car parallel elevator |
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| Publication Number | Publication Date |
|---|---|
| CN115535793A true CN115535793A (en) | 2022-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110471661.2A Pending CN115535793A (en) | 2021-04-29 | 2021-04-29 | Force application mechanism for multi-car parallel elevator |
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| Country | Link |
|---|---|
| CN (1) | CN115535793A (en) |
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2021
- 2021-04-29 CN CN202110471661.2A patent/CN115535793A/en active Pending
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