Energy-saving efficient gear rack elevator transmission structure

Abstract

The utility model provides an energy-saving efficient gear rack elevator transmission structure, which relates to the technical field of elevators, and comprises a bottom frame and a car body, the top surface of the bottom frame is provided with a stand column, the side surface of the stand column is provided with a rack, the surface of the car body is provided with a servo gear motor, and the output end of the servo gear motor is provided with a gear. A code reader is arranged on the surface of the lift car body, the code reader and a laser range finder are adopted, the code reader reads a fixed mark in real time to provide an absolute position reference, the laser range finder dynamically monitors the distance deviation between the lift car and the reference point, and after data of the code reader and the laser range finder are fused, the absolute position reference is obtained. The control system can accurately compensate positioning errors caused by tension change of a lifting chain, load fluctuation or mechanical abrasion, millimeter-level high-precision positioning and quick response of the whole operation process of the lift car are achieved, and the technical bottleneck that a traditional gear and rack lifting machine only depends on rigid transmission but lacks dynamic calibration is broken through. And the operation stability and the butt joint precision under the heavy-load or high-speed working condition are obviously improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of elevator, especially to a kind of energy-saving high-efficiency rack and pinion elevator transmission structure. BACKGROUND

[0002] According to the utility model of a kind of rack and pinion operation based on the elevator of Chinese patent number CN219525081U, including frame body, the inner wall both sides of frame body are symmetrically provided with rack, and rack is symmetrically vertically provided with four roots, and four racks are respectively fixed on the inner wall both sides of frame body, lifting platform, lifting platform is liftable in frame body, lifting platform is provided with the transmission device of cooperation conveying line conveying goods, and movable bearing has shuttle car on lifting platform.The utility model overcomes the problem that the existing existing elevator is mostly utilized flexible traction mechanism, flexible traction mechanism will experience the process of slack to tension in lifting, action response is slow, operating positioning accuracy and docking accuracy are not high.

[0003] The above document and prior art have the following problems: the existing elevator is caused by the tension change of flexible traction mechanism (such as chain, steel wire rope) in motion, the car positioning deviation is large, the response is slow, especially in high-speed or heavy load working condition, it is difficult to meet the demand of high-precision docking, although part of the elevator has adopted rack and pinion structure to improve the transmission rigidity, but the traditional system cannot compensate the cumulative positioning error caused by load change, mechanical wear or installation error in real time, which leads to insufficient operating stability. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art, and provides an energy-saving high-efficiency rack and pinion elevator transmission structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: an energy-saving high-efficiency rack and pinion elevator transmission structure, including bottom frame and car body, the top surface of the bottom frame is provided with stand, the side surface of the stand is provided with rack, the surface of the car body is provided with servo reducer motor, the output end of the servo reducer motor is provided with gear, the surface of the car body is provided with code reader, the bottom of the car body is provided with reflector plate, the surface of the bottom frame is provided with laser range finder.

[0006] Preferably, the car body is arranged on the surface of the top frame, the side surface of the car body is provided with guide wheel, and the car body is rollingly connected with the stand through the guide wheel.

[0007] Preferably, the top end of the stand is provided with top frame, and the surface of the top frame is wound with lifting chain.

[0008] Preferably, one end of the lifting chain is connected with the surface of the car body, and the other end of the lifting chain is provided with a counterweight module.

[0009] Preferably, the surface of the counterweight module is rollingly connected with the surface of the column, and the position of the laser range finder corresponds to the position of the reflector.

[0010] Preferably, the surface of the car body is provided with a chain breakage protection structure, and the surface of the car body is provided with a chain conveyor.

[0011] Preferably, the servo deceleration motor and the gear are arranged in four groups in an axisymmetric manner, and the surface of the gear is meshingly connected with the surface of the rack.

[0012] Beneficial effects

[0013] In the utility model, the code reader and the laser range finder are adopted, the absolute position reference is provided by the code reader in real time, the laser range finder dynamically monitors the distance deviation between the car and the reference point, after the data fusion of the two, the control system can accurately compensate the positioning error caused by the tension change of the lifting chain, the load fluctuation or the mechanical wear, realizes the millimeter level high-precision positioning and the quick response of the whole process of the car operation, breaks through the technical bottleneck that the traditional gear and rack lifting machine only relies on the rigid transmission but lacks dynamic calibration, significantly improves the operation stability and the docking accuracy under the heavy load or high speed working condition, effectively solves the problems of large positioning deviation and slow response of the existing flexible traction mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the axial side view of the utility model;

[0015] Figure 2 It is the structure view of the car body of the utility model;

[0016] Figure 3 It is the utility model Figure 1 It is the enlarged view of A place in the utility model;

[0017] Figure 4 It is the front view of the utility model;

[0018] Figure 5 It is the right view of the utility model;

[0019] Figure 6 It is the upper view of the utility model.

[0020] Legend:

[0021] 1 bottom frame; 2 car body; 3 stand; 4 top frame; 5 lifting chain; 6 counterweight module; 7 servo reduction motor; 8 gear; 9 guide wheel; 10 chain break protection structure; 11 chain conveyor; 12 code reader; 13 laser range finder; 14 reflector; 15 rack. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The specific embodiments of the utility model are described below in combination with the drawings. Embodiment one:

[0025] Reference Figures 1-6The utility model provides an energy -conserving high -efficient gear rack elevator transmission structure, including bottom frame 1 and car body 2, bottom frame 1 is as the basis support structure of elevator, fixed column 3 etc. structure, bear the weight of whole elevator, ensure that equipment is stable, car body 2 is arranged on the surface of bottom frame 1, the side of car body 2 is equipped with guide wheel 9, and car body 2 is rolled with fixed column 3 through guide wheel 9, and car body 2 directly bears goods or shuttle car, realizes vertical lifting, and the rolling connection of car body 2 and fixed column 3 is realized through guide wheel 9, and the lateral displacement is limited, and the frictional resistance when car body 2 moves is reduced, and the operation efficiency is promoted, and it is ensured that car body 2 moves vertically along fixed column 3, avoids deviation, ensures stable movement, and the surface of car body 2 is equipped with chain breakage protection structure 10, and chain breakage protection structure 10 adopts mechanical and electrical double linkage design, and its core is formed by tension sensor, trigger mechanism and brake assembly, when lifting chain 5 is broken due to overload or wear, and the tension sensor monitors the chain tension mutation signal in real time, immediately sends to control system PLC, and PLC synchronous trigger hydraulic clamp installed on both sides of car body 2, and the guide rail of fixed column 3 is quickly clamped through the support seat of guide wheel 9, forms rigid locking, simultaneously, the spring energy storage device in trigger mechanism is automatically released under the condition of power failure, ensures that even if control system fails, brake assembly can still fix car on fixed column 3 through mechanical self -locking, prevents falling, the structure is protected by dynamic tension monitoring, double brake redundancy and mechanical self -locking three -fold, realizes emergency braking response within 0.1 seconds, the surface of car body 2 is equipped with chain conveyor 11, forms conveying passageway on the surface or inside of car body 2 through chain conveyor 11, realizes the stable transfer of goods through chain transmission, and the goods in and out car body 2 is assisted, the top surface of bottom frame 1 is equipped with fixed column 3, and vertical support is provided through fixed column 3, and car body 2 and counterweight module 6 movement are guided, and the vertical movement of car body 2 and counterweight module 6 is supported through rolling connection (such as guide rail), the top of fixed column 3 is equipped with top frame 4, and top frame 4 provides the fixed point of lifting chain 5, and disperses tension, and car body 2 and counterweight module 6 are linked through lifting chain 5, the surface of top frame 4 is wound with lifting chain 5, one end of lifting chain 5 is connected with the surface of car body 2, the other end of lifting chain 5 is equipped with counterweight module 6, and the surface of counterweight module 6 is rolled with the surface of fixed column 3, and lifting chain 5 connects car body 2 and counterweight module 6, and power is delivered, and the movement of car body 2 is transmitted to counterweight module 6 through the lifting chain 5 of top frame 4, and load is balanced, so as to reduce the power requirement of servo reducer motor 7, and part of load is offset by counterweight, so as to reduce efficiency and cost, realize the effect of energy -conserving high -efficient.

[0026] The side of the column 3 is provided with a rack 15, the rack 15 is matched with the gear 8, the gear 8 is provided with a linear motion track, the vertical movement of the car body 2 is realized, the driving force of the servo reducer motor 7 is transmitted, the accurate lifting of the car body 2 is realized, the surface of the car body 2 is provided with the servo reducer motor 7, the output end of the servo reducer motor 7 is provided with the gear 8, the servo reducer motor 7 and the gear 8 are symmetrically provided with four groups, the surface of the gear 8 is meshed and connected with the surface of the rack 15, the servo reducer motor 7 reduces the rotating speed and increases the torque through the speed reducer, drives the gear 8 to rotate, the four groups of symmetrically arranged gears 8 are meshed with the rack 15, the uniform distribution of the driving force is guaranteed, the power is provided, the car body 2 is driven to move, the surface of the car body 2 is provided with a code reader 12, the code reader 12 provides the absolute position reference of the car body 2, the fixed mark (such as a two-dimensional code) of the shaft wall or the floor is read in real time, the floor position information is obtained, cooperates with the laser range finder 13, compensates the dynamic positioning error, the bottom of the car body 2 is provided with a reflector 14, the reflector 14 reflects the laser beam, enhances the laser reflection signal, improves the ranging accuracy, the surface of the bottom frame 1 is provided with the laser range finder 13, the position of the laser range finder 13 corresponds to the position of the reflector 14, the laser range finder 13 dynamically monitors the distance deviation between the car body 2 and the reference point, measures the real-time distance between the car body 2 and the reflector 14 through the laser beam, corrects the positioning error caused by the change of the tension of the lifting chain 5 or the mechanical wear, and realizes the millimeter-level positioning accuracy through the data fusion of the code reader 12, provides the absolute position reference, the laser range finder 13 compensates the dynamic deviation in real time, solves the problem that the traditional gear 8 and rack 15 elevator lacks real-time calibration, and realizes high-precision positioning.

[0027] The operation process of the device is as follows: when the control system PLC issues an instruction, the servo reducer motor 7 drives four groups of symmetrically arranged gears 8 to rotate through the speed reducer, is meshed with the rack 15 on the column 3, drives the car body 2 to vertically ascend and descend along the column 3, transmits the movement of the car body 2 to the counterweight module 6 through the transmission of the lifting chain 5 to balance the load, reduces the power consumption of the motor, the guide wheel 9 ensures that the car body 2 smoothly slides along the column 3, reduces friction, in operation, the code reader 12 reads the floor mark in real time to obtain the absolute position, the laser range finder 13 dynamically measures the distance between the car body 2 and the reference point through the reflector 14, after the data fusion of the two, the control system accurately compensates the positioning error caused by the change of the tension of the chain, the fluctuation of the load or the mechanical wear, realizes the millimeter-level precision, the chain state is monitored by the tension sensor of the chain break protection structure 10, once broken, the hydraulic clamp clamps the column 3 guide rail, at the same time, the spring energy storage device is mechanically locked, double safety is guaranteed, at the same time, the goods are smoothly put in and out through the chain conveyor 11 on the surface of the car body 2, and high-efficiency transportation is completed. Specific embodiment two:

[0029] An energy-saving and efficient gear and rack elevator transmission structure, based on the basic structure in embodiment one, further discloses the following, a 3D camera can be installed at the bottom of the car body 2, not only can it use environment modeling technology to accurately identify the floor position in real time, but also has a powerful obstacle monitoring function, can carefully observe the placement position of the goods, and it can detect whether there is personnel activity in the bottom area of the elevator in real time, thereby ensuring the running efficiency while significantly improving the safety of the overall system.

[0030] In summary:

[0031] 1. Adopting a code reader 12 and a laser range finder 13, the absolute position reference is provided by the code reader 12 reading the fixed mark in real time, and the laser range finder 13 dynamically monitors the distance deviation between the car body 2 and the reference point, after the data fusion of the two, the control system can accurately compensate the positioning error caused by the tension change of the lifting chain 5, load fluctuation or mechanical wear, realize the millimeter-level high-precision positioning and rapid response of the car body 2 during operation, break through the technical bottleneck of the traditional gear 8 and rack 15 elevator relying on rigid transmission but lacking dynamic calibration, significantly improve the running stability and docking accuracy under heavy load or high speed working condition, effectively solve the problems of large positioning deviation and slow response of the existing flexible traction mechanism.

[0032] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under", can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but are in contact through other features between them. Moreover, first feature "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that the horizontal height of first feature is higher than that of second feature. First feature "under", "below" and "lower surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that the horizontal height of first feature is less than that of second feature.

[0033] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and high-efficiency gear and rack elevator transmission structure, comprising a bottom frame (1) and a car body (2), characterized in that: The top surface of the bottom frame (1) is provided with a stand column (3), the side surface of the stand column (3) is provided with a rack (15), the surface of the car body (2) is provided with a servo reduction motor (7), the output end of the servo reduction motor (7) is provided with a gear (8), the surface of the car body (2) is provided with a code reader (12), the bottom of the car body (2) is provided with a reflector (14), and the surface of the bottom frame (1) is provided with a laser range finder (13).

2. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 1, characterized in that: The car body (2) is arranged on the surface of the bottom frame (1), the side surface of the car body (2) is provided with a guide wheel (9), and the car body (2) is rollingly connected with the stand column (3) through the guide wheel (9).

3. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 1, characterized in that: The top end of the stand column (3) is provided with a top frame (4), and the surface of the top frame (4) is wound with a lifting chain (5).

4. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 3, characterized in that: One end of the lifting chain (5) is connected with the surface of the car body (2), and the other end of the lifting chain (5) is provided with a counterweight module (6).

5. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 4, characterized in that: The surface of the counterweight module (6) is rollingly connected with the surface of the stand column (3), and the position of the laser range finder (13) corresponds to the position of the reflector (14).

6. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 1, characterized in that: The surface of the car body (2) is provided with a chain break protection structure (10), and the surface of the car body (2) is provided with a chain conveyor (11).

7. The energy-saving and high-efficiency gear-rack elevator transmission structure according to claim 1, characterized in that: The servo reduction motor (7) and the gear (8) are arranged in four groups in axial symmetry, and the surface of the gear (8) is meshingly connected with the surface of the rack (15).

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