Integrally-driven heavy-load elevator structure

Abstract

The utility model discloses an integrated driving heavy-load elevator structure which comprises a lift car device, a plurality of counterweight devices and at least one traction device. The traction devices are arranged to be installed on the bearing frame, each traction device comprises a traction machine, two traction wheels and traction ropes wound on the traction wheels respectively, and the two traction wheels are installed at the two ends of the traction machine respectively so as to be synchronously driven by the traction machine; wherein the lift car side rope body of each hoisting rope is connected with a lift car device, and the counterweight side rope body of each hoisting rope is connected with a counterweight device. According to the scheme provided by the utility model, not only can the loading capacity of the elevator be improved, but also the running stability of the elevator can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to elevator technical field, more particularly, relate to a integrated drive's big load heavy elevator structure. BACKGROUND

[0002] With the promotion of industrial building, the demand for elevator load capacity is increasing. To meet this demand, two methods are currently used.

[0003] The first method is to increase the torque of the traction machine so that it can lift more rated load, but this method will greatly increase the number of steel wire ropes, indirectly leading to an increase in wheel width and an increase in the difficulty of turning the steel wire rope between the vertically arranged wheels. The other way is to increase the traction ratio. On the one hand, the increase in traction ratio will inevitably lead to a significant reduction in system efficiency and a significant increase in the cross-sectional area of the counterweight device. On the other hand, the closer the guide wheel is to the traction machine, the more the speed increases exponentially, and the requirements for bearings increase significantly. SUMMARY

[0004] The utility model embodiment provides a integrated drive's big load heavy elevator structure for satisfying big load heavy demand of elevator.

[0005] The embodiment of the application provides an integrated drive's big load heavy elevator structure, comprising a car device, a plurality of counterweight devices and at least one traction device;

[0006] The traction device is arranged to be mounted on the load-bearing frame. Each traction device comprises a traction machine, two traction wheels and a traction rope wound around each traction wheel. The two traction wheels are mounted on the two ends of the traction machine to be driven synchronously by the traction machine.

[0007] Each car-side rope body of each traction rope is connected to the car device, and each counterweight-side rope body of each traction rope is connected to one counterweight device.

[0008] In one embodiment, the plurality of counterweight devices are arranged on both sides of the car device, and the plurality of counterweight devices on each side are arranged along the car depth direction. The traction device is provided with a plurality of traction devices arranged in two rows on the load-bearing frame. The two rows of traction devices are arranged to correspond to the counterweight devices on both sides, respectively. The counterweight-side rope body of the traction rope on each row of traction devices is connected to the corresponding counterweight device on one side.

[0009] In one embodiment, the counterweight devices on both sides are symmetrically arranged, and the number of traction devices in each row is equal.

[0010] In one embodiment, the number of traction devices in each row is one, and two counterweight devices are arranged on each side of the car device. Alternatively,

[0011] The number of the traction devices in each row is two, and four counterweight devices are arranged on both sides of the car device.

[0012] In one embodiment, the integrated drive large-load elevator structure further comprises a plurality of car top sheave wheels and a plurality of counterweight sheave wheels mounted on the load bearing frame.

[0013] The car device comprises a car and a plurality of car top wheels mounted on the top of the car, and each of the counterweight devices comprises a counterweight and a plurality of counterweight wheels mounted on the top of the counterweight.

[0014] Each of the traction ropes is arranged such that the counterweight side rope body is connected to a first predetermined structure after passing through the corresponding counterweight wheel and counterweight sheave wheel, and the car side rope body is connected to a second predetermined structure after passing through the corresponding car top wheel and car top sheave wheel.

[0015] In one embodiment, the first predetermined structure and the second predetermined structure are arranged on the load bearing frame.

[0016] Alternatively, the first predetermined structure is arranged on the counterweight device, and the second predetermined structure is arranged on the car device.

[0017] In one embodiment, each of the car top wheels corresponding to the traction rope is arranged in multiple rows, each row of the car top wheels is arranged along the car width direction, and the axial direction of the car top wheel is consistent with the car depth direction.

[0018] The plurality of car top sheave wheels are arranged in multiple rows, each row of the car top sheave wheels corresponds to one row of the car top wheels, and the axial direction of the car top sheave wheel is parallel to the axial direction of the car top wheel.

[0019] The load bearing frame is further provided with a car side deflection wheel perpendicular to the axial direction of the car top wheel, and the car side deflection wheel is arranged between every two adjacent rows of the car top sheave wheels to deflect the traction rope from one row of the car top wheels to another row of the car top wheels through the car side deflection wheel.

[0020] In one embodiment, the car device comprises a plurality of car frames arranged in the car depth direction, and each row of the car top wheels is arranged on the top of one of the car frames.

[0021] In one embodiment, the plurality of car top wheels are uniformly arranged in the car depth direction, or the plurality of car top wheels are non-uniformly arranged in the car depth direction.

[0022] In one embodiment, each of the counterweight devices is provided with at least one row of counterweight pulleys, each row of the counterweight pulleys is arranged along the depth direction of the car, and the plurality of counterweight return pulleys corresponding to each of the counterweight devices is provided with at least one row of the counterweight return pulleys, each row of the counterweight return pulleys corresponding to one row of the counterweight pulleys;

[0023] Among them, when each counterweight device is provided with multiple rows of counterweight wheels, the load-bearing frame is also provided with a counterweight side steering wheel that is perpendicular to the axis of the counterweight wheels, and the counterweight side steering wheel is provided between each two adjacent rows of the counterweight return rope wheels, so that the traction rope is turned from one row of the counterweight wheels through the counterweight side steering wheel to be wound around the other row of the counterweight wheels.

[0024] In one embodiment, the integrated drive heavy-load elevator structure further includes a position detection device and a control system;

[0025] A plurality of position detection devices are provided on the top of the car device, and each position detection device is configured to obtain the instantaneous height of the position;

[0026] The control system is configured to obtain the instant height H itk With the original height H it0 Height difference △H i , according to the height difference △H i Determine whether the car device is overloaded, and issue an overload prompt message when it is determined that the car device is overloaded; wherein the original height H it0 It is the instantaneous height obtained by each of the position detection devices when the door of the car device is initially opened.

[0027] In one embodiment, the car device includes a plurality of car frames arranged in sequence along the depth direction of the car, and the position detection device is respectively provided on both sides of each of the car frames;

[0028] The control system is configured as follows: the height difference ΔH of the position detection devices on both sides of the same car frame is i When the difference between exceeds a first preset value, it is determined that the car device is overloaded.

[0029] In one embodiment, the control system is further configured to calculate the height difference ΔH of the plurality of position detection devices. i The average value of the height difference △H of each position detection device is calculated i The deviation from the average value is greater than a second preset value, and it is determined that the car device is overloaded.

[0030] In one embodiment, the control system is configured to control the car device to operate at a rated speed when it is determined that the car device is not unbalanced, and control the car device to operate at an unbalanced speed lower than the rated speed when it is determined that the car device is unbalanced.

[0031] In one embodiment, the control system is further configured to control the car device to re-level at the nearest floor when the car device is operating to the nearest floor and the car device is in an unbalanced state, and control the car device to operate at the unbalanced speed or the rated speed based on whether the car device is unbalanced after re-leveling.

[0032] Embodiments of the present application can greatly improve the load capacity of the elevator by providing at least one traction device, each of which is provided with two traction sheaves to drive the car device, and the multiple counterweight devices can make the car device bear force evenly, which can improve the stability of the elevator, especially for the elevator with large size car, which can reduce the problem of car tilting under the condition of large load and unbalanced load.

[0033] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. The drawings are intended for illustrative purposes, and thus are not to scale, and particularly, are not to scale in relationship to one another. Identical or nearly identical components that are illustrated in various drawings are typically identified by like reference numerals.

[0035] Figure 1 FIG. 1 is a schematic diagram of an integrated drive large load elevator structure according to one embodiment of the present application;

[0036] Figure 2 FIG. 2 is a top view of the integrated drive large load elevator structure shown in FIG. 1; Figure 1

[0037] Figure 3 FIG. 3 is a side view of the integrated drive large load elevator structure shown in FIG. 1; Figure 1

[0038] Figure 4 FIG. 4 is a schematic diagram of an integrated drive large load elevator structure according to another embodiment of the present application;

[0039] Figure 5 FIG. 5 is a schematic diagram of an integrated drive large load elevator structure according to still another embodiment of the present application;​​

[0040] Figure 6 This is a partial structural diagram of a large-load elevator structure with integrated drive according to one embodiment of the present application;

[0041] Figure 7 Schematic diagram of the rope winding of the counterweight-side rope of the traction rope according to one embodiment of the present application;

[0042] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0043] Figure 9 Schematic diagram of the rope winding of the car side rope body of the traction rope according to one embodiment of the present application;

[0044] Figure 10 This is a schematic structural diagram of a large-load elevator structure with integrated drive according to one embodiment of the present application;

[0045] Figure 11 for Figure 10 Enlarged view of point B in the middle.

[0046] Description of reference numerals:

[0047] 1-Traction device; 11-Traction machine; 12-Traction sheave; 2-Car unit; 21-Car; 211-Car frame; 212-Car floor; 22-Car top wheel; 3-Counterweight device; 31-Counterweight; 32-Counterweight frame; 33-Counterweight wheel; 41-Car top return rope pulley; 42-Car side steering wheel; 43-Counterweight return rope pulley; 44-Counterweight side steering wheel; 5-Load-bearing frame; 6-Position detection device; 7-Magnetic strip. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0049] The embodiment of the present application provides a large load-carrying elevator structure with integrated drive, such as Figures 1-5 As shown, it includes a car device 2, multiple counterweight devices 3 and at least one traction device 1.

[0050] The traction devices 1 are configured to be mounted on the load-bearing frame 5. Each traction device 1 includes a traction machine 11, two traction sheaves 12, and a traction rope wound around each traction sheave 12. The two traction sheaves 12 are respectively mounted at both ends of the traction machine 11 to be synchronously driven by the traction machine 11. The car-side rope body of each traction rope is configured to be connected to the car device 2, and the counterweight-side rope body of each traction rope is respectively connected to a counterweight device 3.

[0051] In the present application, one traction rope on one traction sheave 12 is defined as one traction rope, and each traction rope can be one or multiple. The car side rope body refers to the part of the traction rope on one side of the traction sheave 12 and used for connecting the car device 2, and the counterweight side rope body refers to the part of the traction rope on the other side of the traction sheave 12 and used for connecting the counterweight device 3.

[0052] The embodiment of the present application can greatly improve the load capacity of the elevator by providing at least one traction device 1, and each traction device 1 is provided with two traction sheaves 12 to drive the car device 2 to move. Moreover, the multiple counterweight devices 3 can make the car device 2 bear force evenly, and have a good balancing effect on the elevator, which is beneficial to improve the running stability of the elevator. Especially for the elevator with a large size of the car, the problem of car tilting under the condition of bearing large load and unbalanced load can be alleviated.

[0053] In one embodiment, as shown in Figures 1-4 , the multiple counterweight devices 3 are arranged on both sides of the car device 2, and the multiple counterweight devices 3 on each side are arranged along the car depth direction. The traction device 1 is provided with multiple, and the multiple traction devices 1 are arranged in two rows on the bearing frame 5. The two rows of traction devices 1 are arranged to correspond to the counterweight devices 3 on both sides respectively, and the counterweight side rope body of the traction rope on each row of traction devices 1 is connected to the corresponding counterweight device 3 on one side.

[0054] In one embodiment, the counterweight devices 3 on both sides are symmetrically arranged, and the number of traction devices 1 in each row is equal.

[0055] As shown in the example of Figures 1-3 , the number of traction devices 1 in each row is one, and two counterweight devices 3 are arranged on each side of the car device 2. The counterweight side rope body of each traction rope is connected to one counterweight device 3 respectively.

[0056] In the example of Figure 4 , the number of traction devices 1 in each row is two, and four counterweight devices 3 are arranged on each side of the car device 2. The counterweight side rope body of each traction rope is connected to one counterweight device 3 respectively.

[0057] By arranging the same number of counterweight devices 3 on both sides and the same number of traction devices 1 in each row, the force balance of the car device 2 can be facilitated.

[0058] Figure 5 In the example of , the traction device 1 is provided with one, and the counterweight side rope body of the two traction ropes of the traction device 1 is connected to one counterweight device 3 respectively. The two counterweight devices 3 are arranged on one side of the car device 2 and arranged along the car depth direction.

[0059] In one embodiment, the integrated drive heavy duty elevator structure further comprises a plurality of top sheave 41 and a plurality of counterweight sheave 43 mounted on the support frame 5; the car arrangement 2 comprises a car 21 and a plurality of top sheave 22 mounted on the top of the car 21, and each counterweight arrangement 3 comprises a counterweight 31 and a plurality of counterweight sheave 33 mounted on the top of the counterweight 31.

[0060] Each hoisting rope is arranged such that the counterweight side rope is connected to a first predetermined structure at its end after passing through the corresponding counterweight sheave 33 and counterweight sheave 43, and the car side rope is connected to a second predetermined structure at its end after passing through the corresponding top sheave 22 and top sheave 41. The first predetermined structure can be arranged on the support frame 5 or the counterweight arrangement 3, and the second predetermined structure can be arranged on the support frame 5 or the car arrangement 2. By arranging a plurality of top sheave 22 and top sheave 41 and a plurality of counterweight sheave 33 and counterweight sheave 43, the hoisting ratio of the elevator can be increased, thereby enhancing the carrying capacity of the elevator.

[0061] In order to synchronize the operation of the car arrangement 2 and the two counterweight arrangements 3, the hoisting ratio of the counterweight side and the car side of each hoisting rope is equal. In one embodiment, the first predetermined structure and the second predetermined structure are both arranged on the support frame 5. That is, the counterweight side rope and the car side rope of each hoisting rope are both connected to the support frame 5 at their ends after passing through the corresponding counterweight sheave 33 and counterweight sheave 43. In another embodiment, the first predetermined structure can be arranged on the counterweight arrangement 3, and the second predetermined structure can be arranged on the car arrangement 2. That is, the counterweight side rope of each hoisting rope is connected to the counterweight arrangement 3 at its end after passing through the corresponding counterweight sheave 33 and counterweight sheave 43, and the car side rope is connected to the car arrangement 2 at its end after passing through the corresponding top sheave 22 and top sheave 41.

[0062] As shown in FIG. 1, each hoisting arrangement 1 is arranged with a plurality of counterweight sheave 43 at each end, and the counterweight sheave 43 at each end corresponds to the plurality of counterweight sheave 33 on each counterweight arrangement 3. Each hoisting arrangement 1 is arranged with two hoisting ropes, and each hoisting rope is connected to the corresponding counterweight sheave 33 and counterweight sheave 43 at the corresponding end. Figures 1-5

[0063] In one embodiment, each counterweight arrangement 3 is arranged with at least one row of counterweight sheave 33, and each row of counterweight sheave 33 is arranged along the depth direction of the car. Each counterweight arrangement 3 is arranged with at least one row of counterweight sheave 43, and each row of counterweight sheave 43 corresponds to one row of counterweight sheave 33.

[0064] ​Among them, when each counterweight device 3 is provided with multiple rows of counterweight wheels 33, the load-bearing frame 5 is also provided with a counterweight side steering wheel 44 axially perpendicular to the counterweight wheels 33. The counterweight side steering wheel 44 is arranged between each two adjacent rows of counterweight return rope wheels 43 to be used for the traction rope to be diverted from one row of counterweight wheels 33 through the counterweight side steering wheel 44 to be wound around another row of counterweight wheels 33.

[0065] When the elevator is configured to require a larger counterweight device 3, each counterweight device 3 can be provided with multiple counterweights along the width direction of the car. Figure 6 In the illustrated example, the counterweight assembly 3 is provided with two counterweights 31, each of which is provided with a row of counterweight wheels 33. In this example, each counterweight 31 can be provided with a counterweight frame 32, which is fixed together. Each counterweight frame 32 is provided with a row of counterweight wheels 33. Alternatively, multiple counterweights can be provided with a single counterweight frame, each of which is provided with one or more rows of counterweight wheels 33.

[0066] exist Figures 1-6 In the example (combined with Figures 7-8 ), each counterweight device 3 is provided with two rows of counterweight wheels 33, and the carrier frame 5 is provided with two rows of counterweight return rope wheels 43 corresponding to the two rows of counterweight wheels 33, Figure 8 The two rows of counterweight pulleys 33 on each counterweight device 3 are the first counterweight pulley d1, the second counterweight pulley d2, ..., and the tenth counterweight pulley d10, with five counterweight pulleys 33 forming a row. The corresponding two rows of counterweight return pulleys 43 above are the first counterweight return pulley e1, the second counterweight return pulley e2, ..., and the eighth counterweight return pulley e8, with four counterweight return pulleys 43 forming a row. Counterweight-side deflection pulleys 44 are provided at the ends of the two rows of counterweight return pulleys 43 and between them.

[0067] Figure 7 and Figure 8 The example shows the connection between the traction rope on one traction sheave 12 and the counterweight sheave 33 and the counterweight return rope sheave 43 of the corresponding counterweight device 3. The counterweight side rope body of the traction rope extends downward from the traction wheel 12 to be wound around the first counterweight wheel d1, then upwardly wound around the first counterweight return rope pulley e1, and then continues to be wound around the second counterweight wheel d2, the second counterweight return rope pulley e2, the third counterweight wheel d3, the third counterweight return rope pulley e3, the fourth counterweight wheel d4, the fourth counterweight return rope pulley e4, and after being wound around the fifth counterweight wheel d5, it is wound upwardly around the counterweight side steering wheel 44, and is turned through the counterweight side steering wheel 44 to be wound around the sixth counterweight wheel d6 in the second row, and from the sixth counterweight wheel d6, it passes through the fifth counterweight return rope pulley e5, the seventh counterweight wheel d7, the sixth counterweight return rope pulley e6, the eighth counterweight wheel d8, the seventh counterweight return rope pulley e7, the ninth counterweight wheel d9, the eighth counterweight return rope pulley e8 in turn, and after passing around the tenth counterweight wheel d10, the end is fixed on the load-bearing frame 5.

[0068] In an embodiment, the roof sheave 22 corresponding to each traction rope is provided with multiple rows, each row of roof sheaves 22 is arranged along the width direction of the car, and the axial direction of the roof sheaves 22 is arranged along the depth direction of the car; the multiple roof counter sheaves 41 are provided with multiple rows, each row of roof counter sheaves 41 corresponds to a row of roof sheaves 22, and the axial direction of the roof counter sheaves 41 is parallel to the axial direction of the roof sheaves 22.

[0069] The load-bearing frame 5 is further provided with a car side deflection sheave 42 perpendicular to the axial direction of the roof sheaves 22, and the car side deflection sheave 42 is arranged between each adjacent two rows of roof counter sheaves 41, so as to deflect the traction rope from one row of roof sheaves 22 to another row of roof sheaves 22 through the car side deflection sheave 42.

[0070] As Figures 1-5 In the example, the roof sheave 22 corresponding to each traction rope is provided with five rows, each row is provided with two roof sheaves 22, and each row of roof sheaves 22 is provided with a corresponding row of roof counter sheaves 41 above, and the car side deflection sheave 42 is arranged between each adjacent two rows of roof counter sheaves 41. Of course, the number of rows and the number of each row of roof sheaves 22 can be arranged according to the required traction ratio and the preset load of the elevator.

[0071] In this example, the car 21 includes multiple car frames 211 arranged in sequence along the depth direction of the car, and each row of roof sheaves 22 is arranged in one car frame 211. Each car frame 211 can be provided with an upper cross beam located above, a lower cross beam located below, and a connecting column located on both sides, the length direction of the upper cross beam is the width direction of the car, each row of roof sheaves 22 is arranged along the length direction of the upper cross beam, and the lower cross beams of the multiple car frames 211 can be placed on the car floor 212.

[0072] Figure 9 The connection of the traction rope on one traction sheave 12 with the roof sheave 22 and the roof counter sheave 41 is shown, as Figure 9As shown in the figure, the five rows of counterweight wheels 33 corresponding to one of the traction ropes on the traction sheave 12 are the first counterweight wheel a1, the second counterweight wheel a2, …, the tenth counterweight wheel a10, and two are a row, and the five rows of counterweight sheaves 41 above are the first counterweight sheave b1, the second counterweight sheave b2, …, the tenth counterweight sheave b10, and the plurality of car side deflection sheaves 42 are the first car side deflection sheave c1, the second car side deflection sheave c2, …, the eighth car side deflection sheave c8. Two car side deflection sheaves 42 are arranged between every two adjacent rows of counterweight sheaves 41. The traction rope extends downward from the traction sheave 12 where it is located, passes around the first row of first counterweight sheaves a1, and then passes upward from the first counterweight sheaves a1, in order around the first counterweight sheave b1 and the second counterweight sheave b2, and then passes downward around the second counterweight sheave a2, and then passes upward from the second counterweight sheave a2, in order around the first car side deflection sheave c1 and the second car side deflection sheave c2, and then passes downward around the third counterweight sheave a3 of the second row, and then passes upward in order around the third counterweight sheave b3 and the fourth counterweight sheave b4, and then passes downward around the fourth counterweight sheave a4, and then passes upward from the fourth counterweight sheave a4, in order around the third car side deflection sheave c3 and the fourth car side deflection sheave c4, and then passes downward around the third row of counterweight sheaves, …, and so on, until it is wound around the ninth counterweight sheave a9 of the fifth row by the deflection of the seventh car side deflection sheave c7 and the eighth car side deflection sheave c8, and then passes upward in order around the ninth counterweight sheave b9 and the tenth counterweight sheave b10, and then passes downward around the tenth counterweight sheave a10, and then is fixed at the end of the load-bearing frame 5.

[0073] It can be understood that the number of rows and the number of each row of the counterweight wheels 33 and the counterweight sheaves 43, as well as the counterweight sheaves 22 and the counterweight sheaves 41, can be specifically set according to the traction ratio, which is not limited herein, and in addition, the arrangement of the counterweight wheels 33 and the counterweight sheaves 43, as well as the counterweight sheaves 22 and the counterweight sheaves 41, is not limited to the above, and other arrangement methods can also be used.

[0074] Figures 7-9 Only the connection state of one of the traction ropes of one of the traction devices 1 with the counterweight wheels 33, the counterweight sheaves 43, the counterweight sheaves 22, and the counterweight sheaves 41 is shown, and the connection state of the other traction ropes with the counterweight wheels 33, the counterweight sheaves 43, the counterweight sheaves 22, and the counterweight sheaves 41 can be the same as or different from it, but the traction ratios of the two need to be the same.

[0075] In one embodiment, the counterweight sheaves 22 are uniformly arranged in the car depth direction, as shown in the examples of Figure 1 and Figure 2 The plurality of car frames 211 of the car 21 are uniformly arranged in the car depth direction, and the same number of counterweight sheaves 22 are arranged on each car frame 211.

[0076] In another embodiment, the plurality of roof wheels 21 are arranged non-uniformly in the car depth direction. For example, for a large load elevator, due to the large area, it is usually used to carry a specific large carrier (such as a truck) instead of carrying a plurality of small flat carriers (such as a plurality of pallets). For the elevator carrying a large carrier, the concentrated load is located at the position where the carrier is connected to the car bottom (such as the wheels of the truck), therefore, the roof wheels 22 can be arranged non-uniformly, and the density of the roof wheels 22 arranged at the position where the force is concentrated is larger, which not only makes the operation more stable, but also prevents the part where the load is concentrated from exceeding the carrying capacity of the car frame at that part.

[0077] In some embodiments, the car 21 includes a plurality of car frames 211 arranged in sequence in the car depth direction, and to prevent the force at the position where the load is concentrated from exceeding the rated load of the car frame at that position, the number of roof wheels 22 on each car frame 211 can be reasonably arranged.

[0078] The load exceeding the carrying capacity of each car frame 211 can be checked in the following manner:

[0079] The elevator traction ratio is set as r, and the rated load of each roof wheel 22 is , where Q is the rated load of the elevator. The number of car frames 211 is j, and the number of roof wheels 22 on the a-th car frame 211 is n a , and the rated load on the car frame 211 is .

[0080] If the influence of the adjacent car frames on the load of the i-th car frame 211 is k b , where b is the number of car frames adjacent to the i-th car frame, for example, the influence of the car frames most adjacent to the i-th car frame on the load of the i-th car frame is k1, k1=1, and as b increases, k b decreases. k b is related to the car height and the distance between adjacent car frames.

[0081] When the elevator is running, the carrying limit F2 of the i-th car frame 211 is the sum of the product of the rated load of each car frame 211 and the influence coefficient k b , as shown in the following formula:

[0082]

[0083] When the elevator is loaded, since the car is in a stationary state, the carrying limit F1 of the i-th car frame 211 is 1.25 times the sum of the product of the rated load of each car frame 211 and the influence coefficient k b , as shown in the following formula:

[0084]

[0085] When the contrast load (for example, a vehicle) is at different positions on different car frames in the car, the values of the concentrated load F0, F1 and F2 are F0

[0086] In an embodiment, as shown in Figures 10-11 , the integrated drive heavy load elevator structure can further comprise a position detection device 6 and a control system;

[0087] The top of the car device 2 is provided with a plurality of position detection devices 6, each of which is arranged to obtain the instantaneous height of the position;

[0088] The control system is arranged to obtain the instantaneous height H itk of each position, and the height difference △H it0 between the instantaneous height H i and the original height H i , determine whether the car device 2 is unbalanced according to the height difference △H it0 , and issue an unbalanced prompt message when it is determined that the car device 2 is unbalanced; wherein the original height H it0 is the instantaneous height obtained by each position detection device 6 when the car device 2 is initially opened.

[0089] That is, the control system first obtains the instantaneous height H itk of each position of the car device 2 in real time through the position detection device 6, wherein the height detected by each position detection device 6 when the elevator is initially opened is the original height H it0 , and the instantaneous height of each position of the car device will have a height difference △H i =H itk - H it0 compared to the original height when the goods enter the car, during the opening process of the elevator and during the operation of the elevator, and when the height difference exceeds the limit, it is determined that the car device 2 is unbalanced.

[0090] By setting the position information detected by the plurality of position detection devices 6 to detect whether the elevator is unbalanced in real time, the operator can make the elevator in a suitable working state according to the unbalanced prompt message, thereby avoiding the problems of unstable operation, high failure rate, short service life and safety risks of the integrated drive heavy load elevator structure caused by unbalanced load due to carrying large load.

[0091] In an embodiment, as shown in Figure 10 and Figure 11 , in order for the position detection device 6 to obtain the instantaneous height H itk of the position, a detection reference is arranged corresponding to each position detection device 6, which can be a magnetic stripe 7 installed in the shaft and penetrating the running stroke of the car, and the position detection device 6 can read the position information on the magnetic stripe 7 and transmit it to the control system.

[0092] In one embodiment, the car device 2 includes a plurality of car frames 211 arranged in sequence along the depth direction of the car, and a position detection device 6 is respectively provided on both sides of each car frame 211. The position detection device 6 is provided on the top crossbeam of the car frame 211. It is understood that the position detection device 6 can also be provided at other positions of the car frame 211 or on the top wheel of the car. The control system can be configured to: when a height difference ΔH is detected between the position detection devices 6 on both sides of the same car frame 211, the position detection device 6 is provided on the top crossbeam of the car frame 211. i When the difference between exceeds a first preset value, it is determined that the car device 2 is overloaded.

[0093] Specifically, the height difference between the instantaneous height and the original height of each position detection device 6 is compared, that is, the height H at the tkth moment itk The height H when the elevator door just opens it0 Perform the difference to obtain the height difference △H i =H itk -H it0 , the height difference △H of different position detection devices 6 at time tk i-j =△H i -△H j , the first preset value can be set to 2mm, then in the width direction of the car, the height difference △H of the position detection devices 6 on both sides of the same car frame 211 i-j When the height difference is greater than 2 mm, it is determined that the car device 2 is overloaded in the car width direction.

[0094] The control system can also be configured to calculate the height difference ΔH of the plurality of position detection devices 6: i The average value of , then calculate the height difference △H of each position detection device 6 i Deviation from the mean value △H i -△H 平均 When the deviation exceeds the second preset value, it is determined that the car device 2 is overloaded. In one example, the second preset value is set to 20mm, then △H i -△H 平均 When it is >20mm, the height difference exceeds the limit and it is determined that the car device 2 is overloaded.

[0095] In this example, the height difference ΔH of the plurality of position detection devices 6 is calculated. i The average value of △H 平均 , and calculate the height difference △H of each position detection device 6 i Deviation from the mean value △H i -△H 平均 , the unbalanced load status of each position detection device 6 can be obtained.

[0096] In some embodiments, the control system is configured to control the car device 2 to run at rated speed when it is determined that the car device 2 is not overloaded, and control the car device 2 to run at an overload speed lower than the rated speed when it is determined that the car device 2 is overloaded. The overload speed can be a maintenance speed during elevator maintenance, or a low speed of other numerical value.

[0097] When the car device 2 runs to the nearest floor and the car device 2 is in an overload state, the control system can also be configured to control the car device 2 to carry out re-leveling at the nearest floor, and control the car device 2 to run at the overload speed or the rated speed based on whether the car device 2 is overloaded after re-leveling.

[0098] The operation of the elevator when the car device is overloaded is described below.

[0099] When the car door is opened and the goods enter the car, it is determined whether the car device 2 is overloaded by calculating the height difference as described above. When it is determined that the car device 2 is overloaded, the control system can issue an overload alarm and prompt the overload condition and how to adjust the loading in the car through the display device in the car.

[0100] After the car door is closed, the alarm sound is released. If the height difference does not exceed the limit at this time (i.e., the car device 2 is in an unoverloaded state), the car device 2 is controlled to run at the rated speed; if the height difference exceeds the limit at this time (i.e., the car device 2 is in an overloaded state), the car is in an overloaded state at this time, and the car device 2 is controlled to run at an overload speed.

[0101] When the car device 2 runs at the rated speed, if the control system obtains information that the height difference exceeds the limit, the elevator issues an overload prompt (not an alarm sound), and can also issue an alarm sound and reduce the running speed of the car, so that the car device 2 runs at an overload speed; if the height difference decreases to below the limit during running at the overload speed, the elevator issues an unoverloaded elevator prompt and increases the running speed of the car device to run at the rated speed.

[0102] When the car device 2 runs at the overload speed to the nearest floor, and the height difference does not decrease to below the limit, the control system controls the car device 2 to carry out re-leveling at the nearest floor. After re-leveling, if the height difference decreases to below the limit, the car device 2 is started to run at the rated speed; when the height difference still exceeds the limit, the elevator is started to run at the overload speed.

[0103] When the car device 2 runs at the maintenance speed to the designated floor in an overloaded state, after the goods leave the car (after the weighing device is zeroed or less than a certain value), the height difference at this time is calculated again. If the height difference still exceeds the limit, the maintenance personnel are notified to check the elevator condition.

[0104] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "perimeter", "mouth" structure" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the structure indicated has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0105] In the description of the utility model embodiment, unless otherwise explicitly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0106] Although the embodiments disclosed by the utility model are as above, the content described is only the embodiment adopted for the convenience of understanding the utility model, and is not used to limit the utility model. Any person skilled in the art of the utility model can make any modification and change in the implementation form and details without departing from the spirit and scope of the utility model disclosed, but the patent protection scope of the utility model still needs to be defined by the appended claims.

Claims

1. An integrated drive heavy duty elevator structure, characterized in that, The elevator system comprises a car device, a plurality of counterweight devices, and at least one traction device; The traction device is arranged on the load-bearing frame, each traction device comprises a traction machine, two traction sheaves, and a traction rope wound around each traction sheave, and the two traction sheaves are respectively arranged at two ends of the traction machine and synchronously driven by the traction machine; Each traction rope has a car-side rope body connected to the car device and a counterweight-side rope body connected to one of the counterweight devices.

2. The large load elevator structure according to claim 1, characterized in that, The plurality of counterweight devices are arranged on both sides of the car device, and the plurality of counterweight devices on each side are arranged along the car depth direction; the traction device is arranged in two rows on the load-bearing frame, and the two rows of traction devices are respectively arranged corresponding to the counterweight devices on both sides; the counterweight-side rope body of the traction rope on each row of traction devices is connected to the corresponding counterweight device.

3. The integrated drive heavy duty elevator structure of claim 2, wherein, The counterweight devices on both sides are symmetrically arranged, and the number of traction devices in each row is equal.

4. The integrated drive heavy duty elevator structure of claim 3, wherein, The number of traction devices in each row is one, and two counterweight devices are arranged on each side of the car device; Alternatively, the number of traction devices in each row is two, and four counterweight devices are arranged on each side of the car device.

5. The integrated drive heavy duty elevator structure of claim 1, wherein, The load-bearing frame is further provided with a plurality of car top sheaves and a plurality of counterweight sheaves. The car device comprises a car and a plurality of car top sheaves arranged on the top of the car; each counterweight device comprises a counterweight and a plurality of counterweight sheaves arranged on the top of the counterweight. Each traction rope is arranged such that the counterweight-side rope body is wound around the corresponding counterweight sheave and counterweight sheave, and the end is connected to the first predetermined structure; The car-side rope body is wound around the corresponding car top sheave and car top sheave, and is connected to the second predetermined structure.

6. The integrated drive heavy duty elevator structure of claim 5, wherein, The first predetermined structure and the second predetermined structure are arranged on the load-bearing frame; Alternatively, the first predetermined structure is arranged on the counterweight device, and the second predetermined structure is arranged on the car device.

7. The integrated drive heavy duty elevator structure of claim 5, wherein, Each car top sheave corresponding to each traction rope is arranged in multiple rows, each row of car top sheaves is arranged along the car width direction, and the axial direction of the car top sheave is consistent with the car depth direction; The plurality of car top sheaves are arranged in multiple rows, each row of car top sheaves corresponds to one row of car top sheaves, and the axial direction of the car top sheave is parallel to the axial direction of the car top sheave; The load-bearing frame is further provided with a car side steering wheel perpendicular to the axial direction of the car top sheave, and the car side steering wheel is arranged between each adjacent two rows of car top sheaves, so that the traction rope is turned from one row of car top sheaves to another row of car top sheaves through the car side steering wheel.

8. The integrated drive heavy duty elevator structure of claim 7, wherein, The car device comprises a plurality of car frames arranged along the car depth direction, and each row of car top sheaves is arranged on the top of one car frame.

9. The integrated drive heavy duty elevator structure of claim 5, wherein, The plurality of car top sheaves are uniformly arranged in the car depth direction, or the plurality of car top sheaves are non-uniformly arranged in the car depth direction.

10. The integrated drive heavy duty elevator structure of claim 5, wherein, Each of the counterweight devices is provided with at least one row of counterweight wheels, each row of the counterweight wheels is arranged along the car depth direction, and each of the counterweight devices is provided with at least one row of counterweight sheaves corresponding to the counterweight wheels, each row of the counterweight sheaves corresponds to one row of the counterweight wheels. When each counterweight device is provided with multiple rows of counterweight wheels, the load bearing frame is further provided with counterweight side diverting wheels axially perpendicular to the counterweight wheels, and the counterweight side diverting wheels are arranged between every two adjacent rows of the counterweight sheaves to divert the traction rope from one row of the counterweight wheels to another row of the counterweight wheels through the counterweight side diverting wheels.

11. The integrated drive heavy load elevator structure according to any one of claims 1-7, wherein, The position detection device and the control system are further included. The top of the car device is provided with multiple position detection devices, each of which is arranged to obtain the instantaneous height of the position. The control system is configured to acquire the instant height H itk of each position detection device it0 , and determine whether the car device is unbalanced according to the height difference △H i between the instant height H i and the original height H it0 , and send an unbalanced prompt information when the car device is determined to be unbalanced.

12. The integrated drive, high-capacity elevator structure of claim 11, wherein, The car device includes multiple car frames arranged along the car depth direction, and each of the car frames is provided with the position detection device on both sides. The control system is configured as follows: the height difference ΔH of the position detection devices on both sides of the same car frame is i When the difference between exceeds a first preset value, it is determined that the car device is overloaded.

13. The integrated drive, high-capacity elevator structure of claim 12, wherein, The control system is further configured to calculate the height difference ΔH of the plurality of position detection devices. i The average value of the height difference △H of each position detection device is calculated i The deviation from the average value is greater than a second preset value, and it is determined that the car device is overloaded.

14. The integrated drive, high-capacity elevator structure of claim 11, wherein, The control system is arranged to control the car device to run at a rated speed when it is determined that the car device is not loaded unevenly, and to control the car device to run at a load uneven speed lower than the rated speed when it is determined that the car device is loaded unevenly.

15. The integrated, drive- of large-capacity elevator structure according to claim 14, characterized by, The control system is further arranged to control the car device to perform a re-leveling at the nearest floor when the car device is running to the nearest floor and is in a load uneven state, and to control the car device to run at the load uneven speed or the rated speed based on whether the car device is loaded unevenly after the re-leveling.

Images