Lift car horizontal automatic adjusting device of inclined elevator

By adopting closed-loop control automatic car level adjustment device in inclined elevators, the problem of insufficient horizontal adjustment accuracy and stability of the car during curved track operation is solved, higher operating safety and passenger comfort are achieved, and the service life of the elevator is extended.

CN119976577APending Publication Date: 2025-05-13SUZHOU LAIYIN ELEVATOR CO LTD
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Patent Information

Application Number
CN202510273931.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The accuracy and stability of the car level adjustment accuracy and stability of the inclined elevators during the curved tracks have insufficient, resulting in reduced passenger comfort, reduced operating safety and increased wear of elevator components.

Method used

The car level automatic adjustment device with closed-loop control is adopted, including the car level sensor, the car horizontal adjustment rope-shaped traction chain and the driving mechanism. Through accurate dynamic response and multi-dimensional adjustment, the car's horizontal compensation and angle adjustment are achieved during operation.

Benefits of technology

It improves the level control accuracy and stability of the elevator car in complex tracks, enhances operating safety and passenger comfort, extends the service life of the elevator and reduces maintenance costs.

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Abstract

The invention relates to a car horizontal automatic adjusting device of an inclined elevator. The inclined elevator comprises a car chassis and an elevator car, wherein the car chassis and a pair of guide rails form a rolling pair; the lift car horizontal automatic adjusting device comprises a pair of lift car supporting disc pivoting supporting frames, a pair of lift car supporting discs, a lift car levelness sensor, a pair of lift car horizontal adjusting rope-shaped traction chains and a lift car horizontal adjusting rope-shaped traction chain driving mechanism, and the pair of lift car supporting disc pivoting supporting frames are fixed to the upward side of the lift car chassis. The pair of lift car supporting discs are fixed to the bottom of the lift car, the lift car levelness sensor is arranged at the bottom of the lift car, the pair of lift car levelness adjusting rope-shaped traction chains are arranged on the opposite sides of the pair of lift car supporting discs in an accompanying mode, and the lift car levelness adjusting rope-shaped traction chain driving mechanism is arranged on the lift car chassis. The device has the advantages that the horizontal error of the elevator car in operation can be controlled, the synchronism of the two sides of the elevator car is ensured, and inclination caused by imbalance is avoided; and good flexibility of multi-dimensional adjustment is embodied.
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Description

Technical Field

[0001] The invention belongs to the technical field of elevators, and in particular relates to an automatic level adjustment device for an inclined elevator car, which plays a role in level adjustment of the elevator car under the running condition of a curved track. Background Art

[0002] Inclined elevator is an elevator facility that serves at a designated floor station. It is also called a linear transport device that connects two points in space. It runs along a track (track) that is usually 15-75° with the horizontal plane within a limited path. The reason why it is still classified as an elevator is that its driving mode is similar to that of conventional vertical up and down elevators, that is, both are traction drive mode.

[0003] There is no shortage of technical information about inclined elevators in the public Chinese patent documents, such as CN102756967A (a guide railless inclined elevator with counterweight device), CN201494989U (an inclined elevator), CN101920885A (double elevator without counterweight), CN103264946A (an elevator without counterweight device) and CN103130070A (double-car elevator without counterweight), etc.

[0004] Inclined elevators have a wide range of applications, such as light rail, subway, port, scenic sightseeing, hillside, special buildings (including old building renovation). Etc. Taking the inclined elevator used for scenic sightseeing as an example, inclined elevators are often used to connect sightseeing spots at different heights, which can provide tourists with a convenient and comfortable sightseeing experience. If the inclined elevator car is not level, especially when it is used in the scene where the track running trajectory of the inclined elevator changes, the following adverse factors may occur: passenger comfort is reduced, because the loss of the horizontal state of the car will cause passengers to feel uncomfortable during the ride, affecting the riding experience; operational safety is reduced, because the horizontality of the car will affect the stability and safety of the elevator and increase the operational risk. For example, it may cause the elevator to shake or deflect during operation, and there is a risk of causing an accident in severe cases; the wear of elevator parts is aggravated, and the lack of car level will increase the wear of elevator guide rails, wheel trains and other parts, shorten the service life of the elevator within a reasonable period, and increase maintenance costs; affect the function of the elevator. In some special cases, when encountering situations such as wheelchair passengers, if the car is not level, it will affect the normal entry and exit of the wheelchair. In view of the above, ensuring the good level of the inclined elevator car is an important factor that cannot be neglected and cannot be avoided. The aforementioned scenarios where the track running trajectory has changed are not limited to horizontal bends (the track has bends or turns in the horizontal direction), changes in inclination angles, track crossings or bifurcations (the elevator needs to switch tracks), track connection points (the track has joints between different sections), arched track areas, etc.

[0005] From a macro-design perspective, measures to keep the car of an inclined elevator well level include: adjusting the leveling parameters, adjusting the sensing device, increasing the tension of the steel rope, and improving safety devices (such as equipping with an anti-slip system, safety hook device, etc.).

[0006] In the published Chinese patent documents, technical information aimed at ensuring the level of the inclined elevator car can be seen. For example, CN206345570U recommends a "leveling device for maintaining the level of the inclined elevator car", which is to set a level switch at the bottom of the car, set an electric push rod controlled by a controller on the car bracket, and connect the electric push rod to the edge of one side of the bottom of the car. Its mechanism of action is: when the elevator moves up and down along the running track, the angle changes and the car level exceeds a certain angle, the level switch sends a corresponding angle change direction signal, and the controller drives the electric push rod to make the car move along the track until the car level is within the set range (see paragraph 0011 of the patent specification for details). In addition, CN203306882U (introducing "a car automatic leveling device"), the mechanism of action of the automatic car leveling of the patent is basically the same as that of the aforementioned CN206345570U, and can be specifically referred to in paragraph 0019 of its specification, so the applicant will not repeat it.

[0007] Although the above CN206345570U and CN203306882U can both adjust the level of the inclined elevator car within the design range, they have the following disadvantages: first, the accuracy and stability are poor. There are mechanical gaps in the transmission parts such as gears and screws of the electric push rod. When adjusting a relatively small horizontal deviation, it is easy to cause error accumulation, especially when frequently changing direction, resulting in virtual position and unable to accurately maintain the level; second, the dynamic response ability is insufficient. When the push rod is in motion, the switching between static friction and dynamic friction will cause discontinuous motion, which is manifested as a slight change in the adjustment time. Jitter or stagnation affects the smooth correction of the horizontality; thirdly, the load and lateral force resistance are weak. The maximum thrust of ordinary electric push rods is usually less than 10KN, and the rigidity and flatness of the push rod body (the comprehensive performance of the rigidity and motion straightness of the push rod under load) are relatively lacking. It is easy to bend and deform when subjected to non-axial force in the inclined track of the inclined elevator, which seriously affects the adjustment or even makes the adjustment fail; fourthly, the environmental adaptability is poor. Since the protection level of the electric push rod is IP54 or lower, it is difficult to resist the invasion of dust generated during the operation of the elevator, moisture in the environment, etc. In view of the above factors, it is necessary to make reasonable improvements. The technical solution to be introduced below is produced in this context. Summary of the invention

[0008] The task of the present invention is to provide an automatic car level adjustment device for an inclined elevator, which helps to embody ideal closed-loop control capabilities to avoid the situation where the car is affected by changes in the running trajectory and ensure the good levelness of the elevator car during operation, is conducive to good dynamic level compensation of the elevator car to embody excellent multi-dimensional adjustment flexibility, is convenient to significantly increase the output torque to provide stable power output in the angle adjustment of the elevator car, is beneficial to eliminate the sensitivity to environmental factors such as dust and humidity, and improves the ability to resist the influence of tilt inertia to cope with use in harsh environments and avoid the shaking of the elevator car.

[0009] The task of the present invention is accomplished in this way. An automatic car level adjustment device for an inclined elevator, the inclined elevator comprising a car chassis and an elevator car which, when in use, form a rolling pair with a pair of guide rails laid on the floor and kept parallel to each other in the length direction. The automatic car level adjustment device comprises a pair of car support plate pivot support frames, a pair of car support plates, a car level sensor, a pair of car level adjustment rope-like traction chains and a car level adjustment rope-like traction chain driving mechanism. A pair of car support plate pivot support frames are fixed to the upper side of the car chassis in a front-to-back corresponding state to each other, and a pair of car support plates are fixed to the elevator car chassis in a front-to-back corresponding state at a position between the pair of car support plate pivot support frames. The bottom of the car is fixed and the elevator car is located above the car chassis in a vacant state by the pivotal support of the pair of car support plates and the top of a pair of car support plate pivot support frames. A car level sensor is arranged at the bottom of the elevator car and is electrically connected to an electrical controller arranged on the car chassis. A pair of car level adjustment rope-like traction chains are respectively accompanied on the opposite sides of the pair of car support plates in a front-to-back corresponding state to each other. The two end points of the pair of car level adjustment rope-like traction chains are respectively fixed to the bottom of the elevator car in a left-right corresponding state. The two sides of the middle part are respectively abutted against a pair of car support plates, and the lower part is connected to the car level adjustment rope-like traction chain driving mechanism, and the car level adjustment rope-like traction chain driving mechanism is arranged on the car chassis.

[0010] In a specific embodiment of the present invention, the car level adjustment rope traction chain drive mechanism includes a motor, a reduction gear box, a first sprocket shaft, a second sprocket shaft, a first sprocket and a second sprocket. The motor is electrically connected to the electrical controller. The motor cooperates with the reduction gear box and is fixed to the car chassis together with the reduction gear box. The front end and rear end of the reduction gear box output shaft of the reduction gear box each extend out of the reduction gear box body. The rear end of the first sprocket shaft is transmission-connected to the front end of the reduction gear box output shaft and is rotatably supported on the first sprocket shaft support seat. The front end of the first sprocket shaft extends toward a direction corresponding to a lower side of the front one of the pair of car level adjustment rope traction chains and is configured as a horizontal cantilever end. The front end of the second sprocket shaft The first and second sprocket shaft supports are arranged on the car chassis; the lower part of the front one of the pair of car horizontal adjustment rope-like traction chains is sleeved on the first sprocket, and the lower part of the rear one of the pair of car horizontal adjustment rope-like traction chains is sleeved on the second sprocket.

[0011] In another specific embodiment of the present invention, the motor is a servo motor with forward and reverse rotation functions.

[0012] In another specific embodiment of the present invention, a car support plate pivot shaft is fixed on each opposite side of the pair of car support plates, and the car support plate pivot shaft is rotatably supported on a bearing seat through a bearing, and the bearing seat is fixed on the top of the pair of car support plate pivot support frames.

[0013] In yet another specific embodiment of the present invention, two end points of the pair of car level adjustment rope-like traction chains are respectively fixed to the bottom of the elevator car in a left-right corresponding state through chain fixing seats.

[0014] In another specific embodiment of the present invention, a support plate boss with a diameter smaller than that of the car support plate and protruding from the surface of the car support plate is formed on each side of the pair of car support plates opposite to each other, and the pair of car level adjustment rope-like traction chains are kept in a tensioned state by the middle part of the pair of car level adjustment rope-like traction chains being in contact with the left and right side surfaces of the support plate boss.

[0015] In a further specific embodiment of the present invention, the pair of car support plates are each in a semi-disc-shaped structure.

[0016] In a further specific embodiment of the present invention, a pair of elevator car left edge bottom supporting and limiting columns corresponding to each other front and back are arranged at the upper left end of the car chassis, and a pair of elevator car right edge bottom supporting and limiting columns also corresponding to each other front and back are arranged at the upper right end of the car chassis, and a pair of elevator car left and right edge bottom supporting and limiting columns correspond to each other left and right.

[0017] In yet another specific embodiment of the present invention, a pair of car chassis rollers are arranged on the front and rear sides of the car chassis respectively through chassis roller shafts, and the pair of car chassis rollers and the surfaces of the pair of guide rails form a rolling pair, and the cross-sectional shape of the pair of guide rails is I-shaped, T-shaped, L-shaped, U-shaped, rectangular or circular.

[0018] In yet another specific embodiment of the present invention, a pair of anti-rollover wheels are arranged on the front and rear sides of the car chassis via anti-rollover wheel frames, and the pair of anti-rollover wheels and the guide rail walls on the outward side of the pair of guide rails form rolling pairs.

[0019] One of the technical effects of the technical solution provided by the present invention is that, since a car level adjustment rope-shaped traction chain driving mechanism that can meet the requirements of precise speed and position control is adopted, it is helpful to reflect good closed-loop control capabilities, and since the posture of the elevator car can be adjusted in real time by feedback from the car level sensor, the horizontal error of the elevator car during operation can be ideally controlled, and since a pair of car level adjustment rope-shaped traction chains are adopted, the synchronization of the two sides of the elevator car can be ensured to avoid tilting caused by imbalance; secondly, since the dynamic level compensation adjustment of the elevator car can be achieved in a multi-point linkage manner, It can reflect the flexibility of good multi-dimensional adjustment; thirdly, since the reducer of the structural system of the car horizontal adjustment rope traction chain drive mechanism has the advantages of reducing the rotation speed and increasing the output torque, it can adapt to the application scenarios of inclined elevators with frequent start and stop or load changes with stable power output; fourthly, since a pair of car horizontal adjustment rope traction chains are not sensitive to environmental factors such as dust and humidity, and the car horizontal adjustment rope traction chain drive mechanism has good anti-inertia influence ability, it can cope with use in harsh environment and can well avoid the shaking of the elevator car. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the present invention viewed from the front of an elevator car; Figure 2 for Figure 1 Schematic diagram viewed from right to left with a pair of guide rails removed; Figure 3 for Figure 1 The elevator car shown is supported on a pair of supporting limit columns at the bottom of the left edge of the elevator car after adjustment. DETAILED DESCRIPTION

[0021] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0022] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on the current Figure 1 The position state is taken as a reference, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0023] See also Figure 1 and Figure 2 , shows a car chassis 2 and an elevator car 3 of the structural system of an inclined elevator, which form a rolling pair with a pair of guide rails 1 laid on the floor and kept parallel to each other in the length direction when in use. The figure also shows a car door 31 of the elevator car 3, and shows a pair of car support plate pivot support frames 4, a pair of car support plates 5, a car level sensor 6, a pair of car level adjustment rope-like traction chains 7 and a car level adjustment rope-like traction chain driving mechanism 8 of the structural system of an automatic car level adjustment device. The shape of the pair of car support plate pivot support frames 4 is similar to that of a gantry frame and is fixed to the upper side of the aforementioned car chassis 2 in a state of front-to-back correspondence with each other. The pair of car support plates 5 are located between the aforementioned pair of car support plate pivot support frames 4 (that is, located between the opposite sides of the pair of car support plate pivot support frames 4) in a position with a front-to-back relationship with each other. The elevator car 3 is fixed to the bottom of the aforementioned elevator car 3 in a state corresponding to the rear, and the aforementioned elevator car 3 is located above the aforementioned car chassis 2 in a vacant state by the pivotal support of the pair of car support plates 5 and the top of the pair of car support plate pivot support frames 4. The car level sensor 6 is arranged at the bottom of the elevator car 3 and is electrically connected to the electrical controller 9 arranged on the car chassis 2. A pair of car level adjustment rope-like traction chains 7 are respectively accompanied by the opposite (back-to-back) sides of the aforementioned pair of car support plates 5 in a state corresponding to each other front and back. The two end points of the pair of car level adjustment rope-like traction chains 7 are respectively fixed to the bottom of the aforementioned elevator car 3 in a state corresponding to the left and right, the two sides of the middle part are respectively abutted against the pair of car support plates 5, and the lower part is connected to the aforementioned car level adjustment rope-like traction chain driving mechanism 8, and the car level adjustment rope-like traction chain driving mechanism 8 is arranged on the aforementioned car chassis 2.

[0024] The function of the aforementioned car level sensor 6 is to convert the inclination angle of the elevator car 3 into an electrical signal, and thus it can be called the "sensing organ" of the inclined elevator level adjustment system. It cooperates with the motor 81, reduction box 82 and other components of the structural system of the car level adjustment rope-like traction chain drive mechanism 8 to be described below to form a closed-loop control of perception, decision-making and execution, ensuring that the elevator car always remains level in a complex track. Regarding the car level sensor 6, in the present invention, it is not necessary to deliberately limit which specific sensor to use, because any one of the optical fiber inclination sensor, gyroscope auxiliary sensor, electrolyte inclination sensor, and liquid capacitive sensor can be used, and of course, the level sensor with the same function that is not mentioned above can also be used.

[0025] The applicant needs to explain that the reason why a pair of rope-like traction chains 7 for adjusting the level of the car are mentioned above is to show that the aforementioned chain of the present invention has two endpoints, which is essentially different from the circular (annular) chain without endpoints. It is precisely to distinguish it from the circular chain without endpoints that the present invention uses the word "rope-like" in the noun terminology of the corresponding figure mark. To put it more vividly, the pair of rope-like traction chains 7 for adjusting the level of the car in the present invention are like the "necklace" effect or necklace form worn by people when in use. The only difference is that the two endpoints are fixed on the bottom wall of the elevator car 3 on the same straight line, and when the necklace is worn, the two endpoints are buckled together.

[0026] In addition, in order to facilitate dealing with unexpected situations, an emergency brake device can be provided on the front and rear upper sides of the aforementioned car chassis 2 and at positions corresponding to a pair of car support plates 5 (not shown in the figure). The emergency brake device can also be called an "anti-accidental brake device". The function of the device is to detect whether the car horizontal adjustment rope-like traction chain 7 is broken, because once the car horizontal adjustment rope-like traction chain 7 is broken, it will cause an unsafe risk. Therefore, the emergency brake device clamps the pair of car support plates 5 to ensure that the elevator car 3 will not overturn.

[0027] exist Figures 1 to 3 In the figure, the top box 32 on the upper part of the elevator car 3 is also shown. The top box 32 is convenient for maintenance personnel to safely, reliably and conveniently repair the elevator equipment, because important components such as the control system and the electrical system are usually arranged in the top box 32.

[0028] Please see the key Figure 2 And combined with Figure 1The aforementioned car level adjustment rope-like traction chain driving mechanism 8 includes a motor 81, a reduction box 82, a first sprocket shaft 83, a second sprocket shaft 84, a first sprocket 85 and a second sprocket 86. The motor 81 is electrically connected to the aforementioned electrical controller 9. The motor 81 is matched with the reduction box 82 for transmission and is fixed to the aforementioned car chassis 2 together with the reduction box 82. The front and rear ends of the reduction box output shaft 821 of the reduction box 82 respectively extend out of the box body of the reduction box 82. The rear end of the first sprocket shaft 83 is transmission-connected to the front end of the aforementioned reduction box output shaft 821 and is rotatably supported on the first sprocket shaft support seat 831. The front end of the first sprocket shaft 83 extends toward the direction corresponding to the lower side of the car level adjustment rope-like traction chain 7 located in the front of the aforementioned pair of car level adjustment rope-like traction chains and is configured as a horizontal cantilever end. The front end of the second sprocket shaft 84 is connected to the front end of the reduction box output shaft 821 and is rotatably supported on the first sprocket shaft support seat 831. The first end is transmission connected to the rear end of the reduction gearbox output shaft 821 and is rotatably supported on the second sprocket shaft support seat 841. The rear end of the second sprocket shaft 84 extends in a direction corresponding to the lower side of the rear one of the pair of car horizontal adjustment rope-like traction chains 7 and is constructed as a horizontal cantilever end. The first sprocket 85 is fixed to the front end portion of the first sprocket shaft 83, and the second sprocket 86 is fixed to the rear end portion of the second sprocket shaft 84. The aforementioned first and second sprocket shaft support seats 831 and 841 are arranged on the aforementioned car chassis 2. The lower part of the front one of the pair of car horizontal adjustment rope-like traction chains 7 is sleeved on the first sprocket 85, and the lower part of the rear one of the pair of car horizontal adjustment rope-like traction chains 7 is sleeved on the second sprocket 86.

[0029] In this embodiment, the motor 81 is a servo motor with forward and reverse rotation functions.

[0030] The applicant needs to explain that: the aforementioned first sprocket shaft 83 and the second sprocket shaft 84 can be combined into a single shaft by the reduction gearbox output shaft 821; the front end of the reduction gearbox output shaft 821 and the first sprocket shaft 83 can also form the same shaft, and the rear end of the reduction gearbox output shaft 821 and the second sprocket shaft 84 can form the same shaft. In the first of the two aforementioned situations, there is essentially only one shaft, while in the second situation, there are essentially two shafts. In short, the shaft transmission relationship from the reduction gearbox output shaft 821 to the first sprocket 85 and the second sprocket 86 can have various different forms, and therefore the aforementioned form cannot be understood as the only limitation of the present invention.

[0031] A car support plate pivot shaft 51 is fixed on each opposite side of the aforementioned pair of car support plates 5. The car support plate pivot shaft 51 is rotatably supported on a bearing seat 5111 through a bearing 511, and the bearing seat 5111 is fixed on the top of the aforementioned pair of car support plate pivot support frames 4.

[0032] Depend on Figure 1 and Figure 2 As shown, the two end points of the pair of car level adjustment rope-like traction chains 7 are each fixed to the bottom of the elevator car 3 in a left-right corresponding state through a chain fixing seat 71.

[0033] In order to achieve a good tensioning effect for the pair of car horizontal adjustment rope-like traction chains 7, the present invention has a pair of car support plates 5 facing away from each other (back-to-back side), that is, each side facing outwards is formed with a support plate boss 52 with a diameter smaller than the diameter of the car support plate 5 and protruding from the surface of the car support plate 5. The middle part of the pair of car horizontal adjustment rope-like traction chains 7 is in contact with the left and right side surfaces of the support plate boss 52, so that the pair of car horizontal adjustment rope-like traction chains 7 are in a tensioned state.

[0034] Depend on Figure 1 and Figure 2 As shown, the aforementioned pair of car support plates 5 are each in a semi-disc-shaped structure. That is to say, the pair of car support plates 5 are both half of the entire disc and are approximately D-shaped.

[0035] See you next time Figure 1 and Figure 2 A pair of elevator car left edge bottom supporting and limiting columns 21 corresponding to each other front and back are arranged at the upper left end of the aforementioned car chassis 2, and a pair of elevator car right edge bottom supporting and limiting columns 22 corresponding to each other front and back are arranged at the upper right end of the car chassis 2. The pair of elevator car left edge bottom supporting and limiting columns 21 and the pair of elevator car right edge bottom supporting and limiting columns 22 correspond to each other left and right.

[0036] A pair of car chassis rollers 23 are arranged at intervals on the front and rear sides of the aforementioned car chassis 2 through chassis roller shafts 231. The pair of car chassis rollers 23 and the surfaces of the aforementioned pair of guide rails 1 form a rolling pair, and in the present embodiment, the cross-sectional shape of the pair of guide rails is I-shaped, but it can also be T-shaped, L-shaped, U-shaped, rectangular, circular or other equivalent shapes.

[0037] A pair of anti-rollover wheels 24 are arranged at the front and rear sides of the car chassis 2 through anti-rollover wheel frames 241, and the pair of anti-rollover wheels 24 and the guide rail walls of the pair of guide rails 1 facing outward form rolling pairs.

[0038] See also Figure 3 And combined with Figure 1 and Figure 2 The applicant briefly describes the application of the present invention, from the above description and by Figures 1 to 3From the structure shown and combined with professional common sense, it can be known that the adjustment of the elevator car 3 to the left or right depends on the perception of the car level sensor 6, and the signal is fed back to the electrical controller 9, and the electrical controller 9 sends a counterclockwise (elevator car 3 is adjusted to the left) or clockwise (elevator car 3 is adjusted to the right) working signal to the motor 81 until the elevator car 3 is in a horizontal state, and the horizontal state also depends on the default value or set value range of the car level sensor 6.

[0039] When the elevator car 3 tilted to the right is to be adjusted horizontally, the aforementioned car level sensor 6 first feeds back a signal to the electrical controller 9, and the electrical controller 9 issues a working instruction to the motor 81. The motor 81 works, drives the reduction box 82, and the reduction box 82 reduces speed and the reduction box output shaft 821 drives the first and second sprocket shafts 83 and 84 at the same time. The first and second sprocket shafts 83 and 84 respectively drive the first and second sprockets 85 and 86 synchronously, and the first and second sprockets 85 and 86 drive a pair of car level adjustment rope-like traction chains 7 at the same time, so that the pair of car level adjustment rope-like traction chains 7 adjust the elevator car 3 originally tilted to the right to be horizontal. Figure 3 When the opposite situation to the above situation is to be adjusted, the rotation direction of the motor 81 only needs to be opposite.

[0040] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, has an ultimate horizontal automatic adjustment effect when applied to inclined elevators where the track running trajectory changes, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. An automatic car level adjustment device for an inclined elevator, the inclined elevator comprising a car chassis (2) and an elevator car (3) which form a rolling pair with a pair of guide rails (1) laid on the floor and kept parallel to each other in the length direction when in use, characterized in that: The automatic car level adjustment device comprises a pair of car support plate pivot support frames (4), a pair of car support plates (5), a car level sensor (6), a pair of car level adjustment rope-like traction chains (7) and a car level adjustment rope-like traction chain driving mechanism (8), wherein the pair of car support plate pivot support frames (4) are fixed to the upper side of the car chassis (2) in a state corresponding to each other in front and back, and the pair of car support plates (5) are fixed to the bottom of the elevator car (3) in a state corresponding to each other in front and back at positions between the pair of car support plate pivot support frames (4), and the elevator car (3) is pivotally supported by the pair of car support plates (5) and the top of the pair of car support plate pivot support frames (4) so ​​as to adjust the car level. The elevator car is located above the car chassis (2) in the vacant state. The car level sensor (6) is arranged at the bottom of the elevator car (3) and is electrically connected to an electrical controller (9) arranged on the car chassis (2). A pair of car level adjustment rope-like traction chains (7) are respectively accompanied by the opposite sides of the pair of car support plates (5) in a state corresponding to each other in front and back. The two end points of the pair of car level adjustment rope-like traction chains (7) are respectively fixed to the bottom of the elevator car (3) in a state corresponding to the left and right. The two sides of the middle part are respectively in contact with the pair of car support plates (5), and the lower part is connected to the car level adjustment rope-like traction chain driving mechanism (8), and the car level adjustment rope-like traction chain driving mechanism (8) is arranged on the car chassis (2).

2. The automatic car level adjustment device for an inclined elevator according to claim 1, characterized in that: The car horizontal adjustment rope-like traction chain driving mechanism (8) comprises a motor (81), a reduction box (82), a first sprocket shaft (83), a second sprocket shaft (84), a first sprocket (85) and a second sprocket (86), the motor (81) being electrically connected to the electrical controller (9), the motor (81) being transmission-coordinated with the reduction box (82) and being fixed to the car chassis (2) by the reduction box (82) and the motor (81), the front end and the rear end of the reduction box output shaft (821) of the reduction box (82) respectively extending out of the housing of the reduction box (82), the rear end of the first sprocket shaft (83) being transmission-connected with the front end of the reduction box output shaft (821) and being rotatably supported on the first sprocket shaft support seat (831), the front end of the first sprocket shaft (83) extending toward the direction corresponding to the lower side of the car horizontal adjustment rope-like traction chain located in front of the pair of car horizontal adjustment rope-like traction chains (7) and constituting a horizontal cantilever end, the second The front end of the sprocket shaft (84) is transmission-connected to the rear end of the reduction gearbox output shaft (821) and is rotatably supported on the second sprocket shaft support seat (841). The rear end of the second sprocket shaft (84) extends in a direction corresponding to the lower side of a rear one of a pair of car level adjustment rope-like traction chains (7) and is configured as a horizontal cantilever end. The first sprocket (85) is fixed to the front end of the first sprocket shaft (83). The second sprocket (86) is fixed to the rear end of the first sprocket shaft (83). The rear end portion of the second sprocket shaft (84); the first and second sprocket shaft support seats (831, 841) are arranged on the car chassis (2); the lower part of the front car horizontal adjustment rope-like traction chain of the pair of car horizontal adjustment rope-like traction chains (7) is sleeved on the first sprocket (85), and the lower part of the rear car horizontal adjustment rope-like traction chain of the pair of car horizontal adjustment rope-like traction chains (7) is sleeved on the second sprocket (86).

3. The automatic car level adjustment device for an inclined elevator according to claim 2, characterized in that: The motor (81) is a servo motor with forward and reverse rotation functions.

4. The automatic car level adjustment device for an inclined elevator according to claim 1, characterized in that: A car support plate pivot shaft (51) is fixed on each of the opposite sides of the pair of car support plates (5), and the car support plate pivot shaft (51) is rotatably supported on a bearing seat (5111) through a bearing (511), and the bearing seat (5111) is fixed on the top of the pair of car support plate pivot support frames (4).

5. The automatic car level adjustment device for an inclined elevator according to claim 1, characterized in that: The two end points of the pair of car level adjustment rope-shaped traction chains (7) are fixed to the bottom of the elevator car (3) in a left-right corresponding state through chain fixing seats (71).

6. The automatic car level adjustment device for an inclined elevator according to claim 1 or 4, characterized in that: On the opposite sides of the pair of car support plates (5), there is formed a support plate boss (52) with a diameter smaller than that of the car support plate (5) and protruding from the surface of the car support plate (5). The middle part of the pair of car level adjustment rope-like traction chains (7) is in contact with the left and right side surfaces of the support plate boss (52), so that the pair of car level adjustment rope-like traction chains (7) are in a tensioned state.

7. The automatic car level adjustment device for an inclined elevator according to claim 6, characterized in that: The pair of car support plates (5) are each in a semi-disc-shaped structure.

8. The automatic car level adjustment device for an inclined elevator according to claim 1, characterized in that: A pair of elevator car left edge bottom support limiter columns (21) corresponding to each other are arranged on the upper left end of the car chassis (2), and a pair of elevator car right edge bottom support limiter columns (22) corresponding to each other are arranged on the upper right end of the car chassis (2). The pair of elevator car left and right edge bottom support limiter columns (21, 22) correspond to each other left and right.

9. The automatic car level adjustment device for an inclined elevator according to claim 1, characterized in that: A pair of car chassis rollers (23) are arranged at intervals on the front and rear sides of the car chassis (2) through chassis roller shafts (231), and the pair of car chassis rollers (23) and the surfaces of the pair of guide rails (1) form a rolling pair, and the cross-sectional shape of the pair of guide rails is I-shaped, T-shaped, L-shaped, U-shaped, rectangular or circular.

10. The automatic car level adjustment device for an inclined elevator according to claim 1 or 9, characterized in that: A pair of anti-overturning wheels (24) are arranged at intervals on the front and rear sides of the car chassis (2) through anti-overturning wheel frames (241), and the pair of anti-overturning wheels (24) and the guide rail walls on the outward side of the pair of guide rails (1) form a rolling pair.

Citation Information

Patent Citations

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