Escalator drive chain fatigue life multi-working condition simulation machine

Abstract

The utility model discloses a kind of escalator drive chain fatigue life multi-working condition simulation machines, it is related to escalator drive chain production technical field;And the utility model includes underframe, the upper surface of the underframe is equipped with dismounting mechanism, one side of the dismounting mechanism is equipped with driving mechanism, one side of driving mechanism is fixedly connected with underframe, the dismounting mechanism includes moving motor, one side of moving motor is fixedly connected with one end of underframe, the output of moving motor is fixed with threaded rod, the outside thread of threaded rod is equipped with moving frame, the upper surface of moving frame is fixed with positioning frame, the upper end of positioning frame is rotatably equipped with driven sprocket, one end of underframe is fixed with limiting frame, the utility model is equipped with dismounting mechanism, the distance between driven sprocket and driving sprocket is easily adjusted, to facilitate the installation and dismounting of drive test chain, improve test efficiency, so that the whole dismounting mechanism operation is more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of escalator drive chain production technology, specifically to an escalator drive chain fatigue life multi-condition simulator. Background Technology

[0002] The escalator drive chain fatigue life multi-condition simulator is suitable for escalator manufacturers, quality testing institutions, and research institutions. In these scenarios, the simulator can be used to simulate and test the fatigue life of the escalator drive chain under different operating conditions (such as different loads, speeds, and running times), thereby evaluating the performance and quality of the drive chain. This provides a scientific basis for escalator design optimization, production quality control, and subsequent maintenance, ensuring the safety and reliability of the escalator in actual operation.

[0003] However, existing technologies still have the following problems:

[0004] In the existing technology, escalator drive chain fatigue life testing equipment also faces the problem of difficult installation and disassembly of drive test chains. Because the distance between the drive sprocket and the driven sprocket is fixed or difficult to adjust, it is cumbersome, time-consuming and labor-intensive to replace drive test chains of different specifications or lengths, which seriously affects the testing efficiency.

[0005] To address the aforementioned problems, the inventors proposed a multi-condition fatigue life simulator for escalator drive chains. Utility Model Content

[0006] To address the difficulties in installing and disassembling drive test chains, the purpose of this invention is to provide a multi-condition simulation machine for the fatigue life of escalator drive chains.

[0007] To solve the above technical problems, the present invention adopts the following technical solution: a multi-condition simulation machine for fatigue life of escalator drive chain, including a base frame, a disassembly mechanism on the upper surface of the base frame, a drive mechanism on one side of the disassembly mechanism, a side of the drive mechanism being fixedly connected to the base frame, the disassembly mechanism including a moving motor, a side of the moving motor being fixedly connected to one end of the base frame, a threaded rod fixedly provided at the output end of the moving motor, a moving frame threadedly sleeved on the outer side of the threaded rod, a positioning frame fixedly provided on the upper surface of the moving frame, a driven sprocket rotatably provided at the upper end of the positioning frame, a limiting frame fixedly provided at one end of the base frame, a drive sprocket rotatably provided at the upper end of the limiting frame, a side of the drive sprocket being in contact with the disassembly mechanism, and a drive test chain being sleeved together on the outer sides of the drive sprocket and the driven sprocket.

[0008] Preferably, the drive mechanism includes a fixed frame, one side of which is fixedly connected to one side of the base frame. A drive motor is fixedly mounted on the upper surface of the fixed frame. A meshing shaft is engaged on one side of the drive motor. Multiple fastening bolts are inserted into the outer side of the meshing shaft. A meshing rod is inserted into one end of the meshing shaft, and one end of the meshing rod is fixedly connected to one side of the drive sprocket.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention uses a disassembly mechanism to facilitate the adjustment of the distance between the driven sprocket and the driving sprocket, thereby making it easier to install and disassemble the test chain, improving testing efficiency, and making the entire disassembly mechanism operate more smoothly and reliably. Attached Figure Description

[0011] 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.

[0012] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0013] Fig. 2 This is a cross-sectional schematic diagram of the disassembly mechanism of this utility model.

[0014] Fig. 3 This is a schematic diagram of the drive mechanism structure of this utility model.

[0015] In the diagram: 1. Base frame; 2. Disassembly mechanism; 3. Drive mechanism; 20. Moving motor; 21. Moving mounting bracket; 22. Threaded rod; 23. Moving frame; 24. Moving slot; 25. Limiting bracket; 26. Drive sprocket; 27. Drive test chain; 28. Driven sprocket; 29. ​​Positioning bracket; 30. Fixing bracket; 31. Drive motor; 32. Drive mounting bracket; 33. Engaging teeth; 34. Engaging shaft; 35. Fastening bolt; 36. Engaging slot; 37. Engaging rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example: Figs. 1-3 As shown, this utility model provides a multi-condition simulation machine for fatigue life of escalator drive chains, including a base frame 1. A disassembly mechanism 2 is provided on the upper surface of the base frame 1. A drive mechanism 3 is provided on one side of the disassembly mechanism 2, and one side of the drive mechanism 3 is fixedly connected to the base frame 1. The disassembly mechanism 2 includes a moving motor 20, one side of which is fixedly connected to one end of the base frame 1. A threaded rod 22 is fixedly provided at the output end of the moving motor 20. A moving frame 23 is threadedly fitted on the outer side of the threaded rod 22. A positioning frame 29 is fixedly provided on the upper surface of the moving frame 23. A driven sprocket 28 is rotatably provided at the upper end of the positioning frame 29. A limiting frame 25 is fixedly provided at one end of the base frame 1. The upper end of 25 is rotatably equipped with a drive sprocket 26. One side of the drive sprocket 26 is in contact with the disassembly mechanism 2. The drive test chain 27 is fitted on the outer side of the drive sprocket 26 and the driven sprocket 28. When using the disassembly mechanism 2, the moving motor 20 is started first. The output end of the moving motor 20 drives the threaded rod 22 to rotate. Since the moving frame 23 is threaded on the outer side of the threaded rod 22, and the lower end of the positioning frame 29 slides and fits in the moving groove 24 to play a guiding role, the moving frame 23 will move along the axial direction of the threaded rod 22, thereby driving the positioning frame 29 and the driven sprocket 28 to move, thereby adjusting the distance between the driven sprocket 28 and the drive sprocket 26. After the distance is adjusted to the appropriate position, the drive test chain 27 is fitted on the outer side of the drive sprocket 26 and the driven sprocket 28 to complete the installation. When it is necessary to disassemble the drive test chain 27, the moving motor 20 is started again to move the driven sprocket 28 away from the drive sprocket 26, increasing the distance between the two, and the drive test chain 27 can be easily removed.

[0018] The drive mechanism 3 includes a fixed frame 30, one side of which is fixedly connected to one side of the base frame 1. A drive motor 31 is fixedly mounted on the upper surface of the fixed frame 30. A meshing shaft 34 is engaged on one side of the drive motor 31. Multiple fastening bolts 35 are inserted into the outer side of the meshing shaft 34. A meshing rod 37 is inserted into one end of the meshing shaft 34. One end of the meshing rod 37 is fixedly connected to one side of the drive sprocket 26. When using the drive mechanism 3, the meshing shaft 34 is first engaged with the output end of the drive motor 31 through the meshing groove 36 at one end. At the same time, the meshing teeth 33 on the inner side of the meshing shaft 34 are matched with the corresponding structure of the output end of the drive motor 31 to ensure stable power transmission. Then, the meshing shaft 34 and the drive motor 31 are further fixed by multiple fastening bolts 35. Next, the engagement groove 36 at the other end of the engagement shaft 34 is engaged with the engagement rod 37. Since one end of the engagement rod 37 is fixedly connected to one side of the drive sprocket 26, when the drive motor 31 starts, the power is transmitted to the drive sprocket 26 in sequence through the output end of the drive motor 31, the engagement shaft 34, and the engagement rod 37. The drive sprocket 26 rotates, driving the drive test chain 27 to run, thereby realizing the simulation test of the fatigue life of the escalator drive chain under multiple working conditions.

[0019] A movable mounting bracket 21, fixedly mounted at one end of the base frame 1, is fixedly engaged with the movable motor 20. The movable mounting bracket 21 provides a stable mounting foundation for the movable motor 20, ensuring that the movable motor 20 will not shift due to vibration or other factors during operation, thus guaranteeing the stability and reliability of the movable motor 20, and consequently ensuring the overall operational stability of the disassembly mechanism 2. A movable groove 24 is formed on the upper surface of the base frame 1, the inner side of which slides against the lower end of the positioning frame 29. The movable groove 24 provides guidance for the movement of the positioning frame 29, ensuring that the positioning frame 29 can only move along the direction of the movable groove 24, preventing the positioning frame 29 from shifting during movement, ensuring the accuracy of the driven sprocket 28's movement, thereby ensuring the accuracy of the installation and disassembly of the drive test chain 27 and improving the reliability of the test.

[0020] A drive mounting bracket 32, fixedly mounted on the upper surface of the fixed frame 30, is fixedly engaged with the drive motor 31. The drive mounting bracket 32 ​​provides a stable mounting position for the drive motor 31, allowing the drive motor 31 to be firmly fixed on the fixed frame 30. This reduces vibration and shaking of the drive motor 31 during operation, ensuring its normal operation and the stability of power transmission, thus improving the reliability of the entire drive mechanism 3. Engaging teeth 33, engaged on the inner side of the engagement shaft 34, increase the friction and engagement force between the engagement shaft 34 and the output end of the drive motor 31, making power transmission more efficient and stable. This reduces power loss during transmission, ensuring that the drive sprocket 26 receives sufficient power to drive the test chain 27, thereby improving the accuracy and reliability of the simulation test. The engagement shaft 34 has engagement grooves 36 at both ends, whose inner sides engage with the engagement rod 37 and the output end of the drive motor 31, respectively. This engagement connection method has a simple structure, is easy to install and disassemble, and can quickly realize the connection and separation between the engagement shaft 34, the output end of the drive motor 31, and the engagement rod 37, thereby improving the assembly and maintenance efficiency of the equipment. At the same time, the engagement connection can ensure the stability of power transmission, reduce power transmission failures caused by loose connections, and improve the reliability and service life of the entire drive mechanism 3.

[0021] Working principle: When using disassembly mechanism 2, first start the moving motor 20. The output end of the moving motor 20 drives the threaded rod 22 to rotate. Since the moving frame 23 is threaded on the outside of the threaded rod 22, and the lower end of the positioning frame 29 slides and fits in the moving groove 24 to provide guidance, the moving frame 23 will move along the axial direction of the threaded rod 22, thereby driving the positioning frame 29 and the driven sprocket 28 to move, thus adjusting the distance between the driven sprocket 28 and the drive sprocket 26. After the distance is adjusted to the appropriate position, the drive test chain 27 is fitted on the outside of the drive sprocket 26 and the driven sprocket 28 to complete the installation. When it is necessary to disassemble the drive test chain 27, start the moving motor 20 again to move the driven sprocket 28 away from the drive sprocket 26, increasing the distance between them, and the drive test chain 27 can be easily removed.

[0022] When using the drive mechanism 3, firstly, the engagement shaft 34 is engaged with the output end of the drive motor 31 through the engagement groove 36 at one end. Simultaneously, the engagement teeth 33 on the inner side of the engagement shaft 34 are matched with the corresponding structure at the output end of the drive motor 31 to ensure stable power transmission. Then, multiple fastening bolts 35 are used to further secure the engagement shaft 34 to the drive motor 31. Next, the engagement groove 36 at the other end of the engagement shaft 34 is engaged with the engagement rod 37. Since one end of the engagement rod 37 is fixedly connected to one side of the drive sprocket 26, when the drive motor 31 starts, power is transmitted sequentially through the output end of the drive motor 31, the engagement shaft 34, and the engagement rod 37 to the drive sprocket 26. The drive sprocket 26 rotates, driving the drive test chain 27 to operate, thereby achieving a multi-condition simulation test of the fatigue life of the escalator drive chain.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multi-condition fatigue life simulator for escalator drive chains, comprising a base frame (1), characterized in that: The upper surface of the base frame (1) is provided with a disassembly mechanism (2), and a drive mechanism (3) is provided on one side of the disassembly mechanism (2). One side of the drive mechanism (3) is fixedly connected to the base frame (1).

2. The escalator drive chain fatigue life multi-condition simulator as described in claim 1, characterized in that, The disassembly mechanism (2) includes a moving motor (20), one side of which is fixedly connected to one end of the base frame (1). The output end of the moving motor (20) is fixedly provided with a threaded rod (22). A moving frame (23) is threadedly sleeved on the outer side of the threaded rod (22). A positioning frame (29) is fixedly provided on the upper surface of the moving frame (23). A driven sprocket (28) is rotatably provided on the upper end of the positioning frame (29). A limiting frame (25) is fixedly provided on one end of the base frame (1). A drive sprocket (26) is rotatably provided on the upper end of the limiting frame (25). One side of the drive sprocket (26) is in contact with the disassembly mechanism (2). A drive test chain (27) is sleeved on the outer side of the drive sprocket (26) and the driven sprocket (28).

3. The escalator drive chain fatigue life multi-condition simulator as described in claim 1, characterized in that, The drive mechanism (3) includes a fixed frame (30), one side of the fixed frame (30) is fixedly connected to one side of the base frame (1), a drive motor (31) is fixedly mounted on the upper surface of the fixed frame (30), a meshing shaft (34) is engaged on one side of the drive motor (31), a plurality of fastening bolts (35) are inserted on the outer side of the meshing shaft (34), a meshing rod (37) is inserted at one end of the meshing shaft (34), and one end of the meshing rod (37) is fixedly connected to one side of the drive sprocket (26).

4. The escalator drive chain fatigue life multi-condition simulator as described in claim 1, characterized in that, One end of the base frame (1) is fixedly provided with a movable mounting bracket (21), and one side of the movable mounting bracket (21) is fixedly engaged with the movable motor (20).

5. The escalator drive chain fatigue life multi-condition simulator as described in claim 1, characterized in that, The upper surface of the base frame (1) is provided with a moving groove (24), and the inner side of the moving groove (24) slides and fits against the lower end of the positioning frame (29).

6. The escalator drive chain fatigue life multi-condition simulator as described in claim 3, characterized in that, The upper surface of the fixed frame (30) is fixedly provided with a drive mounting frame (32), and one side of the drive mounting frame (32) is fixedly engaged with the drive motor (31).

7. The escalator drive chain fatigue life multi-condition simulator as described in claim 3, characterized in that, The inner side of the biting shaft (34) is fitted with biting teeth (33).

8. The escalator drive chain fatigue life multi-condition simulator as described in claim 3, characterized in that, Both ends of the engagement shaft (34) are provided with engagement grooves (36), and the inner sides of the two engagement grooves (36) are engaged and connected to the engagement rod (37) and the output end of the drive motor (31), respectively.

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