CN114104930B - Elevator system - Google Patents
Elevator system Download PDFInfo
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- CN114104930B CN114104930B CN202111404970.4A CN202111404970A CN114104930B CN 114104930 B CN114104930 B CN 114104930B CN 202111404970 A CN202111404970 A CN 202111404970A CN 114104930 B CN114104930 B CN 114104930B
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- Prior art keywords
- diverting pulley
- rope
- lifting
- traction rope
- elevator system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/08—Driving gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/02—Rope or cable carriers
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses an elevator system, wherein a lifting assembly is assembled between a pair of guide rails in a lifting channel; the first diverting pulley, the second diverting pulley and the third diverting pulley are fixed on the top of the lifting channel; the axis of the first diverting pulley is in the left-right direction, and in the projection direction of the cross section of the lifting channel, the projection of the first diverting pulley and the left guide rail is overlapped, or the projection of the first diverting pulley is on the left side of the projection of the left guide rail; the axes of the second diverting pulley and the third diverting pulley are in the front-back direction, the second diverting pulley and the third diverting pulley are at the back side of the pair of guide rails, the second diverting pulley is positioned at the left part of the lifting channel, and the third diverting pulley is positioned at the right part of the lifting channel; the rope head of the first traction rope is fixedly connected to the left side of the lifting assembly after the first traction rope winds around the first diverting pulley; the rope end of the second traction rope is fixedly connected to the right side of the lifting assembly after the second traction rope sequentially winds around the second diverting pulley and the third diverting pulley. The elevator system can reduce the abrasion of the traction rope, has simple structure, is convenient to install and maintain, and is beneficial to reducing the height requirement of the top layer.
Description
Technical Field
The invention relates to elevator technology, in particular to an elevator system.
Background
With the increasing living standard of people, the market demand of home elevators is obviously increased. Because of being used in home environment, the space reserved for the elevator lifting channel is limited, and different from the traction type principle of an ordinary passenger elevator, the home elevator mostly adopts the traction type principle. The hoisting structure has the advantages that the elevator system is not provided with a counterweight, the area of the elevator car can be maximized in a limited horizontal space, and the improvement of the civil engineering coping capacity is facilitated; the disadvantage is that 2 hoisting steel ropes are generally arranged, so that the steel ropes have high stress requirements and are easy to wear, and the service life and safety of the steel ropes become bottlenecks of an elevator system.
The technical proposal mentioned in one patent (bulletin No. CN203612778U, bulletin day 2014, 5 month and 28 day) which is disclosed at present is a civil engineering arrangement mode which is commonly adopted in the household elevator products based on the current winding principle. Fig. 1 and 2 are drawings related to civil engineering layout in the patent, and the principle of the drawing can be simplified as shown in fig. 3 and 4. The main characteristics are: 1) The hoisting host is arranged at the bottom of the lifting channel and at the side surface of the lift car; 2) The 5 diverting pulleys arranged at the top of the lifting channel form a diverting pulley group; 3) One of the two hoisting steel wire ropes is suspended on the right side of the car after passing through diverting pulleys No.1 and No.2, and the other hoisting steel wire rope is suspended on the left side of the car after passing through diverting pulleys No.3, no.4 and No. 5. The hanging points of the hoisting steel wire rope on the elevator car are all arranged at the lower part of the elevator car, and the height of the rope head and the like cannot increase the height requirement of the elevator roof.
However, in such a civil engineering arrangement, there are prominent problems:
1) The winch steel wire rope is reversely bent, so that the service life of the steel wire rope is greatly influenced
According to the definition of "reverse bend" in GB 7588-2003 safety regulations for elevator manufacture and installation, i.e. the distance between the wire rope and the contact point of two consecutive fixed pulleys does not exceed 200 times the rope diameter. For the pulley causing reverse bending, the abrasion of the steel wire rope is greatly enhanced, and the abrasion is calculated to be 4 times that of the pulley not causing reverse bending (namely, the pulley causing simple bending).
As shown in fig. 3, the diverting pulley No.4 in this civil arrangement needs to be considered as a "pulley inducing reverse bending" because of the small size of the home elevator car, which would severely affect the rope life. The problems caused are: firstly, according to industry investigation, the service life of a steel wire rope of a common hoisting type home elevator is only 7-8 years, and in the service life of the elevator (generally 20 years), the hoisting steel wire rope needs to be replaced for a plurality of times. This causes additional maintenance costs to the user and makes it difficult for the hoisting home elevator to actually operate to replace the wire rope; secondly, due to principle limitation, 2 steel wire ropes are configured for the hoisting home elevator, and if daily maintenance is not in place, the possibility of using risks caused by breakage of the steel wire ropes exists; thirdly, according to market research, the biggest pain point of the hoisting home elevator is that the service life of the steel wire rope is easy to be attacked by competitors, so that in practice, most hoisting home elevator manufacturers are provided with ultra-high standard steel wire ropes for solving the problem, the problems of cost rise and stock preparation are caused, and the problems of quick abrasion and short service life of the steel wire ropes are not solved from the root.
2) The connecting line of the hoisting wire rope hanging point is eccentric with the center of the lift car, and the balance of the lift car is poor, so that riding comfort is affected
Fig. 4 is a plan view of the civil engineering layout of the technical scheme on vertical projection. The circle mark is the hanging point of the hoisting steel wire rope at the two sides of the lift car. The connecting line of the two hoisting steel wire rope hanging points is approximately parallel to the central line of the guide rail, and has larger eccentricity (about 200 mm) with the central line of the guide rail of the car. The problems brought are: firstly, the connecting line of the hanging point and the central line of the car are eccentric greatly, so that obvious unbalanced load force exists, and the elevator is not beneficial to braking and comfort adjustment; secondly, the eccentric causes the large counter force applied to the elevator guide shoe, which is unfavorable for the service life of the guide shoe.
In order to solve the bottleneck problem of short service life of the steel wire rope of the hoisting type home elevator, another civil engineering arrangement mode of the hoisting type principle home elevator is disclosed in another patent (bulletin No. CN203938321U, bulletin day 2014, 11 month 12). As shown in fig. 5, after the hoist wire rope comes out from the hoist trunk, it is suspended to the top of the car through the reverse rope pulley group at the top of the lifting channel. In the civil engineering layout mode, the pulley which causes reverse bending does not exist, and the service life of the hoisting steel wire rope is prolonged. But the problem is that the hoisting steel wire rope is hung at the top of the lift car, the top beam of the lift car frame, the steel wire rope head and the like are considered when the height of the top layer is calculated, the height requirement of the top layer of the lift is greatly increased, and the practical feasibility of the civil engineering arrangement mode is poor for the home environment with limited layer height.
Fig. 6 shows another solution disclosed in this patent, in order to avoid the need for increasing the height of the elevator ceiling, a knapsack-type car structure is used, in which the hoisting wire rope is suspended from a knapsack-type car frame located on the side of the car. It is easily understood that the position of the rope head of the steel rope is lower than the car at this time, and the calculation of the height of the elevator roof is not affected any more. But this solution also has significant problems: firstly, the car structure is knapsack type, so that the suspension point of the steel wire rope is deviated to one side of the car, the stress is seriously unbalanced, and the riding comfort is affected; secondly, the knapsack type car structure can cause larger counterforce applied to the guide shoes, which is unfavorable for the service life of the guide shoes.
Disclosure of Invention
The invention aims to solve the technical problem of providing an elevator system which can reduce the abrasion of a traction rope, has a simple structure, is convenient to install and maintain and is beneficial to reducing the height requirement of a top layer.
In order to solve the technical problems, the elevator system provided by the invention comprises a lifting assembly 30, a lifting channel 10, a guide rail 60, a traction rope, a counter-rope wheel set and a driving device 20;
a pair of guide rails 60 vertically and fixedly provided on the left wall and the right wall of the elevating channel 10, respectively;
the lifting assembly 30 is assembled between the pair of guide rails 60 in the lifting channel 10, and guided by the pair of guide rails 60;
the diverting pulley set comprises a first diverting pulley 51, a second diverting pulley 52 and a third diverting pulley 53 which are fixed on the top of the lifting channel 10;
the axis of the first diverting pulley 51 is in the left-right direction, and in the cross-sectional projection direction of the elevating channel 10, there is an overlap between the first diverting pulley 51 and the projection of the left guide rail 60, or the projection of the first diverting pulley 51 is on the left side of the projection of the left guide rail 60;
the axes of the second diverting pulley 52 and the third diverting pulley 53 are in the front-back direction, the second diverting pulley 52 and the third diverting pulley 53 are at the rear side of the pair of guide rails 60, the second diverting pulley 52 is at the left part of the lifting channel, and the third diverting pulley 53 is at the right part of the lifting channel;
the driving device 20 drives the lifting assembly 30 to vertically run through a traction rope;
the first traction rope 71 led out by the driving device 20 is fixedly connected to the left side of the lifting assembly 30 after bypassing the first diverting pulley 51;
the second traction rope 72 led out by the driving device 20 sequentially bypasses the second diverting pulley 52 and the third diverting pulley 53, and then the rope ends thereof are fixedly connected to the right side of the lifting assembly 30.
Preferably, the driving device 20 is lower than the counter sheave assembly in the vertical direction of the hoistway 10.
Preferably, the driving device 20 is mounted and fixed at the bottom or middle of the lifting channel 10.
Preferably, the driving device 20 is controlled by the control device to operate, and the first traction rope 71 and the second traction rope 72 are wound up, or the first traction rope 71 and the second traction rope 72 are released, so that the lifting assembly 30 is lifted or lowered along the pair of guide rails 60.
Preferably, the driving device 20 is a winch.
Preferably, the first diverting pulley 51, the second diverting pulley 52 and the third diverting pulley 53 are mounted and fixed on the top of the lifting channel 10 by diverting pulley beams.
Preferably, the lifting assembly 30 is a car or a lifting platform.
Preferably, the lifting channel 10 is a hoistway.
Preferably, the traction rope is a steel wire rope, a traction belt or a traction chain.
Preferably, the lifting assembly 30 is a car;
the line connecting the rope end of the first traction rope 71 with the fixed connection hanging point of the lifting assembly 30 and the rope end of the second traction rope 72 with the fixed connection hanging point of the lifting assembly 30 passes through the center of the car.
Preferably, the center lines of the pair of guide rails 60 coincide with the car center line.
Preferably, the pulley set further comprises a fourth pulley 54 fixed to the top of the hoistway 10;
the axis of the fourth diverting pulley 54 is in the left-right direction;
the first diverting pulley 51 and the fourth diverting pulley 54 are respectively disposed on the front and rear sides of the plane where the left guide rail center line and the right guide rail center line are located;
the radial plane passing through the center of the first diverting pulley 51 and the radial plane passing through the center of the fourth diverting pulley 54 are all intersected with the left guide rail 60; alternatively, in the cross-section projection direction of the lifting channel 10, the projections of the first diverting pulley 51 and the fourth diverting pulley 54 are all on the left side of the left guide rail 60;
the first traction rope 71 led out by the driving device 20 sequentially passes around the first diverting pulley 51 and the fourth diverting pulley 54, and then the rope ends thereof are fixedly connected to the left side of the lifting assembly 30.
Preferably, the elevator system further comprises a guiding system and a braking system;
the guide system comprises a guide shoe;
the braking system includes a speed limiter 110, a safety gear 100, a buffer 90 and a tensioner 120.
The elevator system of the invention has no reverse bending pulley, and all the reverse pulleys are simply bending pulleys, so that the abrasion of the traction rope can be reduced, and the service life of the traction rope can be prolonged (more than 3 times). Because the abrasion of the traction rope is weakened and the service life is longer, the realization possibility is provided for the life-free replacement of the traction rope (according to the service life of a common household elevator for 20 years), and the cost reduction and the stock preparation of the traction rope are facilitated; only 3 diverting pulleys can be adopted, so that the cost of the diverting pulleys is reduced, fewer diverting pulleys are arranged, the simplified design of the closing parts of the top diverting pulley Liang Dengxiang is facilitated, the cost can be further reduced, and the rope winding mode is simpler, so that the installation and maintenance are more convenient; the rope heads of the 2 traction ropes are respectively and fixedly connected to the left side and the right side of the lifting assembly, the positions of the rope heads are lower than the top of the lifting assembly, the rope heads and the like cannot influence calculation of the height of the top layer, the height requirement of the top layer is reduced, and the civil engineering coping capacity of the elevator is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following brief description of the drawings is given for the purpose of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without the need for inventive work for a person skilled in the art.
FIG. 1 is a drawing I of a civil layout of the published patent CN 203612778U;
FIG. 2 is a second drawing of a civil layout of the published patent CN 203612778U;
FIG. 3 is a simplified schematic diagram of a civil engineering layout of the disclosed patent CN 203612778U;
FIG. 4 is a simplified schematic diagram II of the civil engineering layout of the disclosed patent CN 203612778U;
FIG. 5 is a drawing I of a civil layout of the published patent CN 203938321U;
FIG. 6 is a second drawing of a civil layout of the published patent CN 203938321U;
fig. 7 is a schematic cross-sectional view of an embodiment of an elevator system of the present invention;
fig. 8 is a schematic plan view showing the existence of overlapping projections of a first diverting pulley and a left guide rail of an embodiment of an elevator system of the present invention;
fig. 9 is a three-dimensional schematic of an embodiment of an elevator system of the present invention;
fig. 10 is a schematic plan view of a projected left side of a first diverting pulley of an embodiment of the elevator system of the present invention projected on a left guide rail;
fig. 11 is a schematic plan view showing the overlapping of projections of traction ropes passing through the first diverting pulley and the fourth diverting pulley and the left guide rail in an elevator system according to an embodiment of the invention;
fig. 12 is a schematic plan view of an elevator system of an embodiment of the present invention, in which projections of both the first diverting pulley and the fourth diverting pulley are on the left side of the left rail.
Description of the reference numerals
30 lifting components; 10 lifting channels; 60 guide rails; 20 driving means; 51 a first diverting pulley; 52 a second diverting pulley; 53 a third sheave; 54 a fourth diverting pulley; 71 a first traction rope; a second traction rope 72; 110 speed limiter; 100 safety tongs; a 90-buffer; 120 tensioning wheel.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 7 to 10, the elevator system includes a lifting assembly 30, a lifting passage 10, a guide rail 60, a traction rope, a counter-rope pulley group, and a driving device 20;
a pair of guide rails 60 vertically and fixedly provided on the left wall and the right wall of the elevating channel 10, respectively;
the lifting assembly 30 is assembled between the pair of guide rails 60 in the lifting channel 10, and guided by the pair of guide rails 60;
the diverting pulley set comprises a first diverting pulley 51, a second diverting pulley 52 and a third diverting pulley 53 which are fixed on the top of the lifting channel 10;
the axis of the first diverting pulley 51 is in the left-right direction, and in the cross-sectional projection direction of the elevator shaft 10, there is an overlap between the first diverting pulley 51 and the projection of the left rail 60 (as shown in fig. 8), or the projection of the first diverting pulley 51 is on the left side of the projection of the left rail 60 (as shown in fig. 10);
the axes of the second diverting pulley 52 and the third diverting pulley 53 are in the front-back direction, the second diverting pulley 52 and the third diverting pulley 53 are at the rear side of the pair of guide rails 60, the second diverting pulley 52 is at the left part of the lifting channel, and the third diverting pulley 53 is at the right part of the lifting channel;
the driving device 20 drives the lifting assembly 30 to vertically run through a traction rope;
the first traction rope 71 led out by the driving device 20 is fixedly connected to the left side of the lifting assembly 30 after bypassing the first diverting pulley 51;
the second traction rope 72 led out by the driving device 20 sequentially bypasses the second diverting pulley 52 and the third diverting pulley 53, and then the rope ends thereof are fixedly connected to the right side of the lifting assembly 30.
Preferably, the driving device 20 is lower than the counter sheave assembly in the vertical direction of the hoistway 10.
Preferably, the driving device 20 is mounted and fixed at the bottom or middle of the lifting channel 10.
Preferably, the driving device 20 is controlled by the control device to operate, and the first traction rope 71 and the second traction rope 72 are wound up, or the first traction rope 71 and the second traction rope 72 are released, so that the lifting assembly 30 is lifted or lowered along the pair of guide rails 60.
Preferably, the driving device 20 is a hoist, the elevator system is a hoist-type principle elevator, and no counterweight device is provided.
Preferably, the first diverting pulley 51, the second diverting pulley 52 and the third diverting pulley 53 are mounted and fixed on the top of the lifting channel 10 by diverting pulley beams.
Preferably, the lifting assembly 30 is a car, and may also be a lifting platform.
Preferably, the lifting channel 10 is a hoistway.
Preferably, the traction rope is a steel wire rope, a traction belt or a traction chain, etc.
In the elevator system according to the first embodiment, the elevating assembly 30 is driven by the driving device 20 to move in the vertical direction in the elevating path 10. In the cross-sectional projection direction of the lifting channel 10, there is an overlap between the projection of the first diverting pulley 51 and the left guide rail 60, or the projection of the first diverting pulley 51 is on the left side of the left guide rail 60; since the first traction rope 71 passes around the first diverting pulley 51, there is an overlap of the projection of the first traction rope 71 and the left rail 60 in the cross-sectional projection direction of the hoistway 10 or no overlap on the left side of the left rail 60. In short, by vertically disposing the first diverting pulley 51 in comparison with the second diverting pulley 52 and the third diverting pulley 53, the first traction rope 71 is guided to the left side of the lifting assembly 30, so that the rope ends of the first traction rope 71 and the second traction rope 72 are respectively connected and fixed to the left and right sides of the lifting assembly 30.
In the elevator system of the first embodiment, the diverting pulleys causing reverse bending are not arranged, and all the diverting pulleys are 'pulleys causing simple bending', so that the abrasion of the traction rope can be reduced, and the service life of the traction rope can be prolonged (more than 3 times). Because the abrasion of the traction rope is weakened and the service life is longer, the realization possibility is provided for the life-time replacement-free traction rope (according to the service life of a common household elevator for 20 years), and the cost reduction and the stock preparation of the traction rope are facilitated.
The elevator system of the first embodiment can only adopt 3 diverting pulleys, which is not only beneficial to reducing the cost of the diverting pulleys, but also is provided with fewer diverting pulleys, which is beneficial to simplifying the design of the closing parts of the top diverting pulley Liang Dengxiang, thereby further reducing the cost, and the rope winding mode is simpler, so that the installation and maintenance are more convenient.
In the elevator system according to the first embodiment, the rope ends of the 2 traction ropes are respectively and fixedly connected to the left side and the right side of the lifting assembly, the rope end positions are lower than the top of the lifting assembly 30, the rope ends and the like cannot influence calculation of the height of the top layer, the height requirement of the top layer is reduced, and the civil engineering coping capacity of the elevator is improved.
Example two
Based on the elevator system of the first embodiment, as shown in fig. 8, the lifting assembly 30 is a car;
the line connecting the rope end of the first traction rope 71 with the fixed connection hanging point of the lifting assembly 30 and the rope end of the second traction rope 72 with the fixed connection hanging point of the lifting assembly 30 passes through the center of the car.
Preferably, the center lines of the pair of guide rails 60 coincide with the car center line.
In the elevator system of the second embodiment, the car frame is of a portal frame type, and the eccentricity is avoided, so that the unbalanced load force is small, the counter force on the car frame is smaller, the balance of the car is good, the braking and riding comfort of the elevator are facilitated, and the counter force applied to the guide shoes is small, so that the service life of the guide shoes is prolonged.
Example III
The elevator system according to the first embodiment further comprises a fourth diverting pulley 54 fixed to the top of the hoistway 10;
the axis of the fourth diverting pulley 54 is in the left-right direction;
the first diverting pulley 51 and the fourth diverting pulley 54 are respectively disposed on the front and rear sides of the plane where the left guide rail center line and the right guide rail center line are located;
the radial plane passing through the center of the first diverting pulley 51 and the radial plane passing through the center of the fourth diverting pulley 54 all intersect with the left guide rail 60 (as shown in fig. 11); alternatively, in the cross-sectional projection direction of the hoistway 10, the projections of the first diverting pulley 51 and the fourth diverting pulley 54 are all on the left side of the left guide rail 60 (as shown in fig. 12);
the first traction rope 71 led out by the driving device 20 sequentially passes around the first diverting pulley 51 and the fourth diverting pulley 54, and then the rope ends thereof are fixedly connected to the left side of the lifting assembly 30.
In the elevator system according to the third embodiment, the first traction rope 71 passes around the first diverting pulley 51 and the fourth diverting pulley 54 in this order, and the radial plane passing through the center of the first diverting pulley 51 and the radial plane passing through the center of the fourth diverting pulley 54 intersect with the left guide rail 60; alternatively, the projections of the first diverting pulley 51 and the fourth diverting pulley 54 are all on the left side of the left rail 60 in the cross-sectional projection direction of the hoistway 10. Since the first traction rope 71 passes around the first diverting pulley 51 and the fourth diverting pulley 54, there is an overlap of the projection of the first traction rope 71 and the left rail 60 in the cross-sectional projection direction of the hoistway 10 or no overlap on the left side of the left rail 60. In short, by vertically disposing the first diverting pulley 51, the fourth diverting pulley 54 in comparison with the second diverting pulley 52 and the third diverting pulley 53, the first traction rope 71 is guided to the left side of the lifting assembly 30, so that the rope ends of the first traction rope 71 and the second traction rope 72 are respectively connected and fixed to the left and right sides of the lifting assembly 30.
Example IV
According to an embodiment one, as shown in fig. 9, the elevator system further comprises a guiding system and a braking system;
the guide system comprises a guide shoe;
the braking system comprises a speed limiter 110, a safety gear 100, a buffer 90 and a tensioning wheel 120.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the invention.
Claims (12)
1. An elevator system is characterized by comprising a lifting assembly (30), a lifting channel (10), a guide rail (60), a traction rope, a counter-rope wheel set and a driving device (20);
a pair of guide rails (60) are vertically and fixedly arranged on the left wall and the right wall of the lifting channel (10) respectively;
the lifting assembly (30) is assembled between the pair of guide rails (60) in the lifting channel (10) and guided by the pair of guide rails (60);
the diverting pulley group comprises a first diverting pulley (51), a second diverting pulley (52) and a third diverting pulley (53) which are fixed on the top of the lifting channel (10);
the axis of the first diverting pulley (51) is in the left-right direction, and in the projection direction of the cross section of the lifting channel (10), the first diverting pulley (51) is overlapped with the projection of the left guide rail (60), or the projection of the first diverting pulley (51) is at the left side of the projection of the left guide rail (60);
the axes of the second diverting pulley (52) and the third diverting pulley (53) are in the front-back direction, the second diverting pulley (52) and the third diverting pulley (53) are arranged at the rear sides of the pair of guide rails (60), the second diverting pulley (52) is positioned at the left part of the lifting channel, and the third diverting pulley (53) is positioned at the right part of the lifting channel;
the driving device (20) drives the lifting assembly (30) to vertically run through a traction rope;
the rope head of a first traction rope (71) led out by the driving device (20) is fixedly connected to the left side of the lifting assembly (30) after bypassing the first diverting pulley (51);
a second traction rope (72) led out by the driving device (20) sequentially bypasses the second diverting pulley (52) and the third diverting pulley (53), and then the rope end of the second traction rope is fixedly connected to the right side of the lifting assembly (30);
the lifting assembly (30) is a lift car;
the connecting line of the fixed connection lifting point of the rope head of the first traction rope (71) and the lifting assembly (30) and the fixed connection lifting point of the rope head of the second traction rope (72) and the lifting assembly (30) passes through the center of the car.
2. An elevator system according to claim 1, characterized in that,
in the vertical direction of the lifting channel (10), the driving device (20) is lower than the counter-rope pulley group.
3. An elevator system according to claim 1, characterized in that,
the driving device (20) is fixedly arranged at the bottom or the middle part of the lifting channel (10).
4. An elevator system according to claim 1, characterized in that,
the driving device (20) is controlled by the control device to work, and the first traction rope (71) and the second traction rope (72) are reeled in, or the first traction rope (71) and the second traction rope (72) are released, so that the lifting assembly (30) is lifted or lowered along the pair of guide rails (60).
5. An elevator system according to claim 1, characterized in that,
the driving device (20) is a winch.
6. An elevator system according to claim 1, characterized in that,
the first diverting pulley (51), the second diverting pulley (52) and the third diverting pulley (53) are fixed on the top of the lifting channel (10) through diverting pulley beams.
7. An elevator system according to claim 1, characterized in that,
the lifting assembly (30) is a car or a lifting platform.
8. An elevator system according to claim 1, characterized in that,
the lifting channel (10) is a hoistway.
9. An elevator system according to claim 1, characterized in that,
the traction rope is a steel wire rope, a traction belt or a traction chain.
10. An elevator system according to claim 1, characterized in that,
the center line of the pair of guide rails (60) coincides with the center line of the car.
11. An elevator system according to claim 1, characterized in that,
the rope reversing wheel set further comprises a fourth rope reversing wheel (54) fixed at the top of the lifting channel (10);
the axis of the fourth diverting pulley (54) is in the left-right direction;
the first diverting pulley (51) and the fourth diverting pulley (54) are respectively arranged on the front and back sides of the plane where the center line of the left guide rail and the center line of the right guide rail are positioned;
the radial plane passing through the center of the first diverting pulley (51) and the radial plane passing through the center of the fourth diverting pulley (54) are all intersected with the left guide rail (60); or, in the projection direction of the cross section of the lifting channel (10), the projections of the first diverting pulley (51) and the fourth diverting pulley (54) are all arranged on the left side of the left guide rail (60);
a first traction rope (71) led out by the driving device (20) sequentially bypasses the first diverting pulley (51) and the fourth diverting pulley (54), and then the rope ends of the first traction rope and the fourth diverting pulley are fixedly connected to the left side of the lifting assembly (30).
12. An elevator system according to claim 1, characterized in that,
the elevator system further comprises a guiding system and a braking system;
the guide system comprises a guide shoe;
the braking system comprises a speed limiter (110), a safety gear (100), a buffer (90) and a tensioning wheel (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111404970.4A CN114104930B (en) | 2021-11-24 | 2021-11-24 | Elevator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111404970.4A CN114104930B (en) | 2021-11-24 | 2021-11-24 | Elevator system |
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| Publication Number | Publication Date |
|---|---|
| CN114104930A CN114104930A (en) | 2022-03-01 |
| CN114104930B true CN114104930B (en) | 2023-10-03 |
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|---|---|---|---|
| CN202111404970.4A Active CN114104930B (en) | 2021-11-24 | 2021-11-24 | Elevator system |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302154A (en) * | 2000-04-25 | 2001-10-31 | Takano Co Ltd | Home elevator |
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| CN114104930A (en) | 2022-03-01 |
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