A car positioning assembly for an elevator

Abstract

The utility model discloses a trolley positioning assembly for elevator, including frame, hinged with main clamp bar and vice clamp bar on the frame, be provided with drive gear and guide rod on the main clamp bar, be provided with guide post on the guide rod, be provided with driven gear on the vice clamp bar, and driven gear is engaged with drive gear, still be provided with swing bar and motor on the frame, and one end of swing bar is hinged with the frame, and another end is fixedly provided with baffle, and the swing bar is seted up with guide groove, and the free end of guide post is located in guide groove, and the output of motor is fixedly provided with crank, and the free end of crank is hinged with connecting rod, and the free end of connecting rod is hinged with main clamp bar. Adopt the way of clamping motor positioning rod to adjust the relative position of trolley, relative to the realization positioning with the help of electronic equipment, and mechanical positioning is more accurate, and the frame is fixed, and the adjustment amount of trolley is guaranteed by the stroke and clamping position of clamping device, and the error is controllable and does not need to repeat calibration.

Description

Technical Field

[0001] This utility model belongs to the field of elevator trolley positioning technology, and in particular relates to a trolley positioning component for elevators. Background Technology

[0002] Currently, the positioning of trolleys at the lifting rails of elevators mostly relies on barcode tape positioning. Barcode tape positioning is highly sensitive at the dock, and high sensitivity often means increased procurement costs. If the trolley cannot accurately stop at the predetermined position, the lifting device attached to the trolley may encounter problems when receiving goods, and the goods cannot be transported away normally by the lifting device, which will lead to the accumulation of goods on the production line. Secondly, the positioning error of barcode tape is random, and the actual error is too large or too small, which cannot be adjusted or controlled by the program. Therefore, the accuracy of barcode tape positioning is difficult to guarantee.

[0003] Therefore, we need to design a trolley positioning component for elevators to solve these problems. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a trolley positioning component for an elevator.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A positioning assembly for a lifting trolley includes a frame with a main clamping rod and a secondary clamping rod hinged to the frame. The main clamping rod has a drive gear and a guide rod, and the guide rod has a guide post. The secondary clamping rod has a driven gear that meshes with the drive gear. The frame also has a swing rod and a motor. One end of the swing rod is hinged to the frame, and the other end has a fixed baffle. The swing rod has a guide groove, and the free end of the guide post is located within the guide groove. The output end of the motor has a fixed crank, and the free end of the crank is hinged to a connecting rod, the free end of which is hinged to the main clamping rod.

[0007] Preferably, the frame is further rotatably provided with a drive shaft and a driven shaft, the drive gear is fixed to one end of the drive shaft, the middle part of the main clamping rod is fixedly connected to the drive shaft, the free end of the connecting rod is hinged to one end of the drive shaft, one end of the guide rod is fixedly connected to the drive shaft, and the guide post is fixed to the other end of the guide rod; the driven gear is fixed to one end of the driven shaft, and one end of the auxiliary clamping rod is fixedly connected to the driven shaft.

[0008] This configuration fixes the drive gear, main clamping rod, and guide rod to the drive shaft, allowing them to rotate synchronously with the drive shaft. This reduces the assembly gap between components, lowers the risk of loosening during transmission, ensures the consistency of the main clamping rod and guide rod's movements, and improves the structural stability of the positioning assembly.

[0009] The driven gear and the secondary clamping rod are fixed on the driven rotating shaft. Combined with the meshing of the drive gear and the driven gear, when the drive rotating shaft drives the drive gear to rotate, the driven rotating shaft can be driven to rotate synchronously through gear meshing. This, in turn, drives the secondary clamping rod and the main clamping rod to move in tandem, ensuring that the opening and closing actions of the main and secondary clamping rods correspond precisely and avoiding positioning deviations caused by independent movement of components. At the same time, the rotating shaft is mounted on the frame, which reduces the frictional resistance when the components rotate and extends the service life of the components.

[0010] The connecting rod is hinged to the drive shaft. Compared to being directly hinged to the main clamping rod, the drive shaft can serve as an intermediate transmission component, dispersing the force transmitted by the connecting rod and preventing the main clamping rod from being damaged due to excessive local stress. At the same time, it can also make the power transmission more uniform and further improve the smoothness of the main clamping rod's rotation.

[0011] Preferably, a main pad is fixedly provided on the main clamping rod, and a secondary pad is fixedly provided on the secondary clamping rod. When the main clamping rod and the secondary clamping rod rotate, the main pad and the secondary pad will fit together or separate from each other.

[0012] In this configuration, the main pad and the auxiliary pad are fixed to the main clamping rod and the auxiliary clamping rod, respectively. They rotate synchronously with the clamping rod to achieve engagement or disengagement. When engaged, the trolley is clamped and positioned; when disengaged, the trolley is released. This clamping and positioning method provides stable clamping force through direct contact between the clamping blocks and the trolley, preventing displacement of the trolley during elevator operation and ensuring reliable positioning. As the component that directly contacts the trolley, the clamping blocks can be designed and materialized according to the shape and material of the positioning rods on the trolley. This enhances the fit with the trolley and improves the clamping effect while preventing scratches or damage to the trolley surface, thus balancing positioning stability and trolley protection requirements.

[0013] Preferably, a mounting bracket is also fixedly installed on the frame, and a clamping sensor, a reset sensor and a limit sensor are fixedly installed on the mounting bracket. The input end of the clamping sensor is opposite to the contact point of the main pad and the secondary pad. When the main clamping rod rotates, the main clamping rod will pass through the input ends of the reset sensor and the limit sensor.

[0014] This setup provides a stable mounting platform for each sensor, ensuring that the sensor position is fixed and avoiding detection deviations caused by sensor loosening. At the same time, mounting multiple sensors together on the mounting rack facilitates sensor wiring, debugging, and maintenance, and improves the overall integration of the components.

[0015] The clamping sensor is positioned opposite the main and auxiliary pads, which can detect in real time whether the clamping blocks are accurately attached and determine whether the clamping and positioning of the trolley is complete. If they are not attached, a signal can be fed back in time, which can facilitate the control system to adjust and prevent the trolley positioning failure due to inadequate clamping.

[0016] The reset sensor and limit sensor can detect the rotation position of the main clamping rod. The reset sensor can determine whether the main clamping rod has returned to the initial position, ensuring that the starting state of each positioning action is consistent. The limit sensor can limit the maximum rotation angle of the main clamping rod, preventing the main clamping rod from being damaged or the positioning from being out of tolerance due to excessive rotation. Through real-time detection and feedback of the sensors, the positioning component can be automatically controlled and protected, improving the intelligence level and operational safety of the component.

[0017] Preferably, a lifting rail is also fixedly installed on the frame, and the lifting rail is connected to the frame by bolts.

[0018] This configuration provides a guiding path for the lifting trolley's lifting movement, ensuring that the trolley moves along a fixed trajectory during lifting, avoiding deviation or swaying, and improving the stability and safety of the trolley's operation.

[0019] The lifting rail and the frame are connected by bolts. This detachable connection method facilitates the installation, disassembly and replacement of the lifting rail. When the lifting rail is worn or damaged, there is no need to replace the entire frame, which reduces maintenance costs and difficulty. At the same time, the bolt connection can ensure the firmness of the connection between the lifting rail and the frame and prevent the lifting rail from loosening during the lifting process.

[0020] Preferably, a speed reducer is fixedly mounted on the frame, the motor is connected to the frame through the speed reducer, and the output end of the motor is connected to the input end of the speed reducer. The crank is fixed to the output end of the speed reducer and is connected to the motor through the speed reducer.

[0021] This configuration allows the reducer to lower the motor's high speed to a suitable low speed for the positioning components, while increasing the output torque. This results in smoother and more powerful rotation of the main and auxiliary clamping rods, preventing the clamping rods from moving too quickly due to excessive motor speed, which could affect positioning accuracy, or from failing to effectively clamp the trolley due to insufficient torque. The motor is connected to the frame via the reducer, which acts as a transitional component between the motor and the frame, making the motor installation more stable and dispersing vibrations generated during motor operation. This reduces the impact of vibrations on the frame and other components, extending the overall service life of the components. The crank is fixed to the output end of the reducer, enabling power transmission to the motor. The reducer's speed reduction and torque amplification make the crank's rotation angle easier to control, allowing for precise adjustment of the connecting rod's movement. Ultimately, this achieves precise control of the main clamping rod's rotation angle, improving the trolley's positioning accuracy. The reducer also provides overload protection, preventing motor damage when the positioning components encounter excessive resistance.

[0022] The advantages and positive effects of this utility model are:

[0023] This utility model uses a clamping motor positioning rod to adjust the relative position of the trolley. Compared with positioning by using electronic equipment, mechanical positioning is more accurate.

[0024] The frame of the trolley positioning device of this utility model is fixed and does not require repeated calibration. The device relies on the stroke and clamping position of the clamping device to ensure the adjustment amount of the trolley, and the error is controllable and the accuracy is high.

[0025] The three utility models use a mechanical linkage structure for positioning, which reduces the overall production cost and helps improve the market competitiveness of the products. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0029] Figure 3 This is a front view of the closed state of this utility model;

[0030] Figure 4 This is a front view of the open state of this utility model;

[0031] Figure 5 yes Figure 3 The left view;

[0032] Figure 6 yes Figure 3 Top view;

[0033] Figure 7 It is along Figure 6 Schematic diagram of the longitudinal section at point I-I;

[0034] Figure 8 It is along Figure 6 Schematic diagram of the longitudinal section at point II-II.

[0035] The annotations in the attached figures are explained as follows:

[0036] 1. Frame; 2. Baffle; 3. Mounting bracket; 4. Connecting rod; 5. Main clamping rod; 6. Secondary clamping rod; 7. Swing rod; 8. Crank; 9. Drive shaft; 10. Driving gear; 11. Driven gear; 12. Motor; 13. Reducer; 14. Guide groove; 15. Driven shaft; 16. Lifting rail; 17. Guide rod; 18. Guide column; 19. Clamping sensor; 20. Limit sensor; 21. Reset sensor; 22. Main pad; 23. Secondary pad. Detailed Implementation

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The present invention will be further described below with reference to the accompanying drawings:

[0040] Example 1: As Figures 1-8 As shown, a trolley positioning assembly for a lifting platform includes a frame 1. A main clamping rod 5 and a secondary clamping rod 6 are hinged to the frame 1. A drive gear and a guide rod 17 are provided on the main clamping rod 5. A guide post 18 is provided on the guide rod 17. A driven gear 11 is provided on the secondary clamping rod 6. The driven gear 11 meshes with the drive gear. A swing rod 7 and a motor 12 are also provided on the frame 1. One end of the swing rod 7 is hinged to the frame 1, and a baffle 2 is fixedly provided on the other end. A guide groove 14 is provided on the swing rod 7. The free end of the guide post 18 is located in the guide groove 14. A crank 8 is fixedly provided on the output end of the motor 12. A connecting rod 4 is hinged to the free end of the crank 8. The free end of the connecting rod 4 is hinged to the main clamping rod 5.

[0041] After the motor 12 starts, it drives the crank 8 to rotate. The crank 8 pulls the connecting rod 4 through the hinge point, and the connecting rod 4 transmits power to the main clamping rod 5, pushing the main clamping rod 5 to rotate around the hinge point with the frame 1. When the main clamping rod 5 rotates, it simultaneously drives the drive gear and the guide rod 17 to move. The drive gear meshes with the driven gear 11 on the secondary clamping rod 6, thereby driving the secondary clamping rod 6 to rotate around the hinge point with the frame 1. At the same time, the guide post 18 on the guide rod 17 slides in the guide groove 14 of the swing rod 7, pushing the swing rod 7 to rotate around the hinge point with the frame 1, thereby driving the baffle 2 to move.

[0042] The frame 1 is also rotatably equipped with a drive shaft 9 and a driven shaft 15. The drive gear is fixed to one end of the drive shaft 9. The middle part of the main clamping rod 5 is fixedly connected to the drive shaft 9. The free end of the connecting rod 4 is hinged to one end of the drive shaft 9. One end of the guide rod 17 is fixedly connected to the drive shaft 9. The guide post 18 is fixed to the other end of the guide rod 17. The driven gear 11 is fixed to one end of the driven shaft 15. One end of the auxiliary clamping rod 6 is fixedly connected to the driven shaft 15.

[0043] The power transmitted by the connecting rod 4 acts on the drive shaft 9, causing the drive shaft 9 to rotate on the frame 1. Since the drive gear, main clamping rod 5, and guide rod 17 are all fixed on the drive shaft 9, the drive shaft 9 rotates synchronously, driving all three to move. During the rotation of the drive gear, it meshes with the driven gear 11 on the driven shaft 15, causing the driven shaft 15 to rotate on the frame 1, while the auxiliary clamping rod 6 is fixed on the driven shaft 15 and rotates together with the driven shaft 15.

[0044] A main pad 22 is fixedly installed on the main clamping rod 5, and a secondary pad 23 is fixedly installed on the secondary clamping rod 6. When the main clamping rod 5 and the secondary clamping rod 6 rotate, the main pad 22 and the secondary pad 23 will fit together or separate.

[0045] When the main clamping rod 5 rotates with the drive shaft 9, it drives the main pad 22 on it to move synchronously; when the secondary clamping rod 6 rotates with the driven shaft 15, it drives the secondary pad 23 on it to move synchronously. Due to the meshing transmission between the drive gear and the driven gear 11, the main clamping rod 5 and the secondary clamping rod 6 rotate in opposite directions. When they rotate in opposite directions, the main pad 22 and the secondary pad 23 move closer to each other and fit together; when they rotate in opposite directions, the main pad 22 and the secondary pad 23 move away from each other and separate.

[0046] A mounting bracket 3 is also fixedly installed on the frame 1. A clamping sensor 19, a reset sensor 21, and a limit sensor 20 are fixedly installed on the mounting bracket 3. The input end of the clamping sensor 19 is opposite to the contact point of the main pad 22 and the secondary pad 23. When the main clamping rod 5 rotates, the main clamping rod 5 will pass through the input ends of the reset sensor 21 and the limit sensor 20.

[0047] Mounting bracket 3 provides a mounting base for the three sensors, fixing their relative positions. When the main pad 22 and the auxiliary pad 23 are in contact with each other, the input end of the clamping sensor 19 detects the contact state and transmits a signal. As the main clamping rod 5 rotates with the drive shaft 9, its edge passes through the input ends of the reset sensor 21 and the limit sensor 20. When the main clamping rod 5 returns to its initial position, the reset sensor 21 is triggered; when the main clamping rod 5 rotates to its maximum angle, the limit sensor 20 is triggered. The sensors respectively transmit the corresponding signals to the control system.

[0048] A lifting rail 16 is also fixedly installed on the frame 1, and the lifting rail 16 is connected to the frame 1 by bolts.

[0049] The lifting rail 16 is firmly connected to the frame 1 by bolts. The lifting trolley can move along the track structure of the lifting rail 16. The frame 1 provides stable support for the lifting movement of the trolley by fixing the lifting rail 16.

[0050] A speed reducer 13 is fixedly installed on the frame 1. The motor 12 is connected to the frame 1 through the speed reducer 13, and the output end of the motor 12 is connected to the input end of the speed reducer 13. The crank 8 is fixed to the output end of the speed reducer 13 and is connected to the motor 12 through the speed reducer 13.

[0051] The power output from the motor 12 is first transmitted to the input end of the reducer 13. After being reduced in speed and increased in torque by the reducer 13, it is transmitted from the output end to the crank 8. The reducer 13 is fixed on the frame 1. The motor 12 is fixed to the frame 1 by means of the connection with the reducer 13, which ensures that the position of the motor 12 is stable during operation and that the power can be stably transmitted to the crank 8.

[0052] The working process of this embodiment: Before operation, the positioning component is in an initial state. In the initial state, the main clamping rod 5 and the auxiliary clamping rod 6 are positioned as follows: Figure 4 The baffle 2 is in the fully open state shown, and it is in the lowered state.

[0053] When the trolley arrives at the lifting area of ​​the elevator, the distance sensor carried by the trolley triggers the distance sensor installed in the lifting area, causing the trolley to stop within the lifting area.

[0054] Next, the motor 12 of the positioning component will rotate clockwise. The motor 12 drives the crank 8 to rotate through the reducer 13. After the crank 8 rotates, it will push the connecting rod 4 to move. The connecting rod 4 is hinged to the main clamping rod 5, so the main clamping rod 5 will rotate. The guide rod 17 connected to the drive shaft 9 will also rotate. After the guide rod 17 rotates, it will drive the swing rod 7 to rotate around the hinge point through the sliding of the guide post 18 in the guide groove 14. When the swing rod 7 rotates, it will drive the baffle 2 to move. When the baffle 2 moves to cover the laser sensor assembled on the car, the brake of the motor 12 on the car will be opened by the control system. Meanwhile, the rotating main clamping rod 5 drives the drive gear to rotate via the drive shaft 9. The drive gear rotates, which in turn drives the meshing driven gear 11 to rotate. The driven gear 11 drives the driven shaft 15 to rotate, which in turn drives the auxiliary clamping rod 6 to rotate synchronously. As the main clamping rod 5 and the auxiliary clamping rod 6 rotate, the distance between the main pad 22 and the auxiliary pad 23 gradually decreases to form a closed loop, ultimately clamping the positioning rod installed on the trolley body. During the clamping process of the main clamping rod 5 and the auxiliary clamping rod 6, the brake on the trolley will be slightly released, thereby adjusting the position of the trolley and achieving precise positioning.

[0055] After positioning is completed, when motor 12 rotates counterclockwise, it drives crank 8 to rotate again through reducer 13. Crank 8 pulls connecting rod 4 to move. After positioning is completed, when motor 12 rotates counterclockwise, it drives crank 8 to rotate again through reducer 13. Crank 8 pulls connecting rod 4 to move, driving main clamping rod 5 to rotate. At the same time, with the cooperation of drive gear and driven gear 11, secondary clamping rod 6 also rotates, causing main clamping rod 5 and secondary clamping rod 6 to open again. Swing rod 7 will rotate in the opposite direction with the cooperation of guide rod 17, guide post 18 and guide groove 14, driving baffle 2 to move down and reset.

[0056] Simultaneously, with the cooperation of the driving gear 10 and the driven gear 11, the main clamping rod 5 and the auxiliary clamping rod 6 will open, and the main pad block 22 and the auxiliary pad block 23 will separate from the positioning rod on the trolley. The trolley will be released, and then the elevator will carry the trolley to the corresponding workstation to retrieve the goods. After retrieval, the elevator will lift the trolley, and the trolley carrying the goods will flow to the next workstation. Then, subsequent trolleys will enter the lifting rail 16 area to complete the aforementioned positioning, retrieval, and delivery tasks in sequence.

[0057] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A positioning component for a trolley in a lift, characterized in that: The system includes a frame (1), on which a main clamping rod (5) and a secondary clamping rod (6) are hinged. The main clamping rod (5) is provided with a drive gear and a guide rod (17). The guide rod (17) is provided with a guide post (18). The secondary clamping rod (6) is provided with a driven gear (11), which meshes with the drive gear. The frame (1) is also provided with a swing rod (7) and a motor (12). One end of the swing rod (7) is hinged to the frame (1), and the other end is fixedly provided with a baffle (2). The swing rod (7) is provided with a guide groove (14). The free end of the guide post (18) is located in the guide groove (14). The output end of the motor (12) is fixedly provided with a crank (8). The free end of the crank (8) is hinged to a connecting rod (4), and the free end of the connecting rod (4) is hinged to the main clamping rod (5).

2. The positioning assembly for a lift trolley according to claim 1, characterized in that: The frame (1) is also rotatably provided with a drive shaft (9) and a driven shaft (15). The drive gear is fixed to one end of the drive shaft (9). The middle part of the main clamping rod (5) is fixedly connected to the drive shaft (9). The free end of the connecting rod (4) is hinged to one end of the drive shaft (9). One end of the guide rod (17) is fixedly connected to the drive shaft (9). The guide post (18) is fixed to the other end of the guide rod (17). The driven gear (11) is fixed to one end of the driven shaft (15). One end of the auxiliary clamping rod (6) is fixedly connected to the driven shaft (15).

3. The positioning component for a lift trolley according to claim 2, characterized in that: A main pad (22) is fixedly installed on the main clamping rod (5), and a secondary pad (23) is fixedly installed on the secondary clamping rod (6). When the main clamping rod (5) and the secondary clamping rod (6) rotate, the main pad (22) and the secondary pad (23) will fit together or separate.

4. A trolley positioning assembly for a lift according to claim 3, characterized in that: A mounting bracket (3) is also fixedly installed on the frame (1). A clamping sensor (19), a reset sensor (21), and a limit sensor (20) are fixedly installed on the mounting bracket (3). The input end of the clamping sensor (19) is opposite to the contact point of the main pad (22) and the secondary pad (23). When the main clamping rod (5) rotates, the main clamping rod (5) will pass through the input ends of the reset sensor (21) and the limit sensor (20).

5. A positioning assembly for a lift trolley according to claim 1, characterized in that: A lifting rail (16) is also fixedly installed on the frame (1), and the lifting rail (16) is connected to the frame (1) by bolts.

6. A trolley positioning assembly for an elevator according to claim 1, characterized in that: A speed reducer (13) is fixedly installed on the frame (1). The motor (12) is connected to the frame (1) through the speed reducer (13), and the output end of the motor (12) is connected to the input end of the speed reducer (13). The crank (8) is fixed to the output end of the speed reducer (13), and the crank (8) is connected to the motor (12) through the speed reducer (13).

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