Elevator door machine with lubrication structure

Abstract

The utility model belongs to elevator door machine technical field, specifically is a kind of elevator door machine with lubricating structure, it include: door frame, motor is installed on door frame, the output of motor is installed with reduction gearbox, the output of motor is installed with first rotating shaft, first rotating shaft is connected with transmission belt on driving, the inner surface transmission of transmission belt is connected with second rotating shaft;Friction heat is generated between pulley rotation and sliding slot, so that the grease viscosity reduces by heating, honeycomb plate is extruded to produce micro deformation, and by the extrusion of oval pressure roller to fluorine rubber base composite board, the lubricating oil in the oil storage cotton extrudes outward, reduce the space in oil storage cavity, so that with the cooperation of polyester fiber and lithium base grease compound, the lubricating oil is extruded from micron level capillary channel, improve the lubrication intensity when elevator door machine runs, to reduce the wear between pulley and sliding slot when elevator door machine runs, to further prolong the service life of elevator door machine.

Description

Technical Field

[0001] This utility model belongs to the field of elevator door operator technology, specifically an elevator door operator with a lubrication structure. Background Technology

[0002] An elevator door operator is a mechanism responsible for opening and closing the elevator hall and car doors. When it receives an elevator door opening or closing signal, the elevator door operator controls the door opening motor through its own control system, converting the torque generated by the motor into a force in a specific direction to close or open the door.

[0003] A Chinese patent with authorization announcement number CN202785198U discloses an elevator door operator, including a front wall of the door operator and a door operator guide rail fixed to the outside of the front wall. The front wall of the door operator is fixed to the upper sill by a door operator support member. The door operator guide rail is slidably fitted with rollers. The rollers are fixed to the door hanging plate and the door panel at the lower end of the door hanging plate. The upper end of the door operator support member is fixed to the upper sill by a fixing surface, and the lower end of the door operator support member is fixed to the front wall of the door operator by vertical abutment surfaces at both ends. The purpose of this utility model is to design an elevator door operator with a novel and unique structure, simple and practical structure, low production cost, and high safety performance during use, making it an ideal elevator door.

[0004] However, the above solution still has some problems. When using guide rails and pulleys for transmission, the pulleys cannot be continuously lubricated during the operation of the elevator door operator, resulting in abnormal wear between the guide rails and the sliders, which in turn reduces the service life of the elevator door operator. Therefore, to address the above problems, an elevator door operator with a lubrication structure is proposed. Utility Model Content

[0005] To overcome the shortcomings of existing technology and address the problems of existing equipment, this utility model proposes an elevator door operator with a lubrication structure.

[0006] The technical solution adopted by this utility model to solve its technical problem is an elevator door operator with a lubrication structure, including: a door operator frame, a motor mounted on the door operator frame, a reduction gearbox mounted on the output end of the motor, a first rotating shaft mounted on the output end of the motor, a transmission belt drivingly connected to the first rotating shaft, a second rotating shaft drivingly connected to the inner surface of the transmission belt, both the first and second rotating shafts being rotatably connected to the door operator frame, a slide rail provided on the upper part of the door operator frame, a sliding groove provided on the door operator frame, door hanging plates drivingly connected to the slide rail and the door operator frame, and two sets of door hanging plates... The plate is connected to the transmission belt. A pulley is installed on the door hanging plate. The pulley is slidably connected to the inside of the slide groove. A connecting groove is opened on one side of the door frame. An oil storage chamber is opened inside the door frame. Oil storage cotton is installed inside the oil storage chamber. A honeycomb plate is fixedly connected to the inner wall of the oil storage chamber. The honeycomb holes of the honeycomb plate are filled with polyester fiber and lithium-based grease composite. When the door vibrates, the polyester fiber filled in the honeycomb holes undergoes micro-deformation, which temporarily reduces the viscosity of the adsorbed lubricating oil by 40-60%, promoting the lubricating oil to seep out from the honeycomb holes in the honeycomb plate and out of the micron-level capillary channels.

[0007] Preferably, the honeycomb panel is located above the oil-storing cotton, and the slide groove is provided with micron-level capillary channels. Under the action of the micron-level capillary channels, liquid lubricant seeps out to the surface of the guide rail through the micron-level capillary channels, thereby achieving lubrication of the pulley.

[0008] Preferably, one end of the micron-level capillary channel is connected to the honeycomb plate, and a fluororubber-based composite plate is installed on one side of the oil storage cavity. When the fluororubber-based composite plate is squeezed, it will produce elastic deformation, thereby squeezing the oil storage cotton, so that the lubricating oil in the oil storage cotton is squeezed into the oil storage cavity, and thus the lubricating oil is squeezed out of the oil storage cavity.

[0009] Preferably, one end of the pulley is rotatably connected to a connecting rod, which is slidably connected inside the connecting groove. One end of the connecting rod is equipped with a pressure roller, which is in contact with one side of the fluororubber-based composite plate. Because the pressure roller is elliptical, it can squeeze the fluororubber-based composite plate when it rotates, causing the fluororubber-based composite plate to undergo elastic deformation after being squeezed. Subsequently, the deformation of the fluororubber-based composite plate squeezes the oil storage cotton.

[0010] Preferably, a transmission pipe is installed on one side of the gantry frame, an elastic sheet is installed inside the transmission pipe, and a baffle is hinged to the inner wall of the transmission pipe. One side of the baffle is connected to one end of the elastic sheet. Under the action of the elastic sheet itself, the baffle is pushed to a horizontal position, so that the three sets of damping pads are in contact, improving the fit between the baffles, thereby sealing the transmission pipe and preventing the lubricating oil in the oil storage chamber from leaking.

[0011] Preferably, a damping pad is fixedly connected to one side of the baffle, a threaded groove is opened on the outer side of the transmission pipe, and an anti-slip ring is fixedly connected to the outer surface of one end of the transmission pipe. The anti-slip ring is in contact with the inner wall of the external pipe, thereby increasing the friction between the transmission pipe and the external pipe and preventing leakage when lubricating oil enters the transmission pipe.

[0012] The advantages of this invention are as follows: the friction between the rotating pulley and the sliding groove generates heat, which reduces the viscosity of the lubricating grease. The honeycomb panel is compressed and undergoes micro-deformation. Furthermore, the elliptical pressure roller squeezes the fluororubber-based composite plate, causing the lubricating oil in the oil storage cotton to be squeezed outward, reducing the space in the oil storage cavity. This, combined with the polyester fiber and lithium-based grease composite, allows the lubricating oil to be squeezed out from the micron-level capillary channels, improving the lubrication intensity during elevator door machine operation. This reduces the wear between the pulley and the sliding groove during elevator door machine operation, thereby extending the service life of the elevator door machine.

[0013] This utility model connects the external pipe and the transmission pipe through a threaded groove, thereby adding a certain amount of lubricating oil into the oil storage chamber. After the addition is completed, the baffle is pushed to a horizontal position by the elasticity of the elastic sheet itself, so that the three sets of damping pads are in contact, improving the fit between the baffles, thereby sealing the transmission pipe and preventing the lubricating oil in the oil storage chamber from leaking, thus improving the convenience of adding lubricating oil into the elevator door operator. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the overall structure;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure;

[0017] Figure 3 This is a schematic cross-sectional view of the lubrication assembly;

[0018] Figure 4 This is a schematic diagram of the pulley assembly;

[0019] Figure 5 This is a schematic diagram of the cross-section of the transmission pipe.

[0020] In the diagram: 1. Door frame; 2. Slide rail; 3. Door hanging plate; 4. Pulley; 5. Slide groove; 6. Connecting groove; 7. Oil storage chamber; 8. Oil storage cotton; 9. Honeycomb panel; 10. Micron-level capillary channel; 11. Fluororubber-based composite board; 12. Connecting rod; 13. Pressure roller; 14. Transmission pipe; 15. Elastic sheet; 16. Baffle; 17. Damping pad; 18. Threaded groove; 19. Anti-slip ring. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figure 1-5 As shown, an elevator door operator with a lubrication structure includes: a door operator frame 1, a motor mounted on the door operator frame 1, a gearbox mounted on the output end of the motor, a first rotating shaft mounted on the output end of the motor, a drive belt driven through the first rotating shaft, a second rotating shaft driven through the inner surface of the drive belt, both the first and second rotating shafts being rotatably connected to the door operator frame 1, a slide rail 2 and a slide groove 5 provided on the door operator frame 1, door hanging plates 3 being driven through the slide rail 2 and the door operator frame 1, two sets of door hanging plates 3 being connected to the drive belt, pulleys 4 mounted on the door hanging plates 3, the pulleys 4 being slidably connected inside the slide groove 5, and a connecting groove provided on one side of the door operator frame 1. 6. An oil storage chamber 7 is provided inside the gantry frame 1. An oil storage cotton 8 is installed inside the oil storage chamber 7. A honeycomb plate 9 is fixedly connected to the inner wall of the oil storage chamber 7. The honeycomb holes of the honeycomb plate 9 are filled with polyester fiber and lithium-based grease composite. The honeycomb plate 9 is located above the oil storage cotton 8. A micron-level capillary channel 10 is provided on the slide groove 5. One end of the micron-level capillary channel 10 is connected to the honeycomb plate 9. A fluororubber-based composite plate 11 is installed on one side of the oil storage chamber 7. A connecting rod 12 is rotatably connected to one end of the pulley 4. The connecting rod 12 is slidably connected inside the connecting groove 6. A pressure roller 13 is installed at one end of the connecting rod 12. The pressure roller 13 is attached to one side of the fluororubber-based composite plate 11.

[0023] During operation, the elevator door operator uses a guide rail and pulley 4 for transmission. However, the pulley 4 cannot be continuously lubricated during operation, leading to abnormal wear between the guide rail and pulley 4. To improve lubrication and reduce wear, an elevator door operator with a lubrication structure is proposed. In actual use, the motor drives the first rotating shaft, which in turn drives the transmission belt to rotate the second rotating shaft. This causes the door mounting plate 3 to move to the sides or towards the center, opening and closing the elevator door. One end of the door mounting plate 3 passes through the guide rail 2 and is located above the door operator frame 1, engaging with the sliding groove 5. When the door hanger 3 moves, it provides support to the door mounting plate 3, thereby improving the stability of the elevator door operator and making the opening and closing of the elevator door more stable and safe. When the door mounting plate 3 moves, it drives the pulley 4 to roll along the slide groove 5, which causes friction between the pulley 4 and the slide groove 5. When the pulley 4 rolls and generates frictional heat, the viscosity of the lubricating grease in the oil storage chamber 7 decreases due to heat. When the pulley 4 slides, the honeycomb plate 9 undergoes elastic deformation, causing the polyester fibers filled in the honeycomb holes to undergo slight deformation when the door operator vibrates. This temporarily reduces the viscosity of the adsorbed lubricating oil by 40-60%, promoting the lubricating oil to flow out of the honeycomb holes in the honeycomb plate 9. The lithium-based grease complex, after being squeezed out under pressure, returns to its gel state within 3-5 seconds, thus preventing the loss of lubricating oil from the oil storage chamber 7. In conjunction with the micron-level capillary channel 10, liquid lubricant seeps out through the micron-level capillary channel 10 to the surface of the slide groove 5, allowing the lubricating oil in the oil storage chamber 7 to be released outwards in an adaptive temperature manner. This ensures continuous lubrication of the pulley 4 during elevator door machine operation without increasing mechanical movement. Furthermore, as the pulley 4 rotates, the connecting rod 12 drives the pressure roller 13 along the storage groove. When the oil chamber 7 rotates, the pressure roller 13, being elliptical, can compress the fluororubber-based composite plate 11. This compression causes the fluororubber-based composite plate 11 to undergo elastic deformation, which in turn compresses the oil storage cotton 8. This forces the lubricating oil in the oil storage cotton 8 to be squeezed outwards, reducing the space within the oil storage chamber 7. This forces the lubricating oil to be squeezed out from the micron-level capillary channel 10, increasing the lubrication intensity during elevator door machine operation. Consequently, this reduces the wear between the pulley 4 and the slide groove 5 during elevator door machine operation, thereby extending the service life of the elevator door machine.

[0024] Please see Figure 1-5 As shown, a transmission pipe 14 is installed on one side of the gantry frame 1. An elastic sheet 15 is installed inside the transmission pipe 14. A baffle 16 is hinged to the inner wall of the transmission pipe 14. One side of the baffle 16 is connected to one end of the elastic sheet 15. A damping pad 17 is fixedly connected to one side of the baffle 16. A threaded groove 18 is opened on the outer side of the transmission pipe 14. An anti-slip ring 19 is fixedly connected to the outer surface of one end of the transmission pipe 14.

[0025] When adding lubricating oil to the oil storage chamber 7, the external pipe is connected and fixed to the transmission pipe 14 through the threaded groove 18, and the anti-slip ring 19 is in contact with the inner wall of the external pipe, thereby increasing the friction between the transmission pipe 14 and the external pipe and preventing leakage when the lubricating oil enters the transmission pipe 14. Then, the lubricating oil is pumped into the transmission pipe 14 through the external pipe by the oil pump. The external force generated when the lubricating oil enters the oil storage chamber 7 causes the baffle 16 to rotate inward about the hinge point, so that the transmission pipe 14 is in an open position. The system is in a state of openness, allowing lubricating oil to enter the oil storage chamber 7. After adding a measured amount of lubricating oil, the oil pump is turned off to stop extracting lubricating oil. At the same time, the impact force on the baffle 16 decreases, and the baffle 16 is pushed to a horizontal position by the elastic force of the elastic sheet 15, so that the three sets of damping pads 17 are in contact, improving the fit between the baffles 16, thereby sealing the transmission pipe 14 and preventing lubricating oil leakage from the oil storage chamber 7, thus improving the convenience of adding lubricating oil to the elevator door operator.

[0026] Working principle: The motor drives the first shaft to rotate, which in turn drives the transmission belt to rotate the second shaft. This causes the door mounting plate 3 to move to the sides or towards the center, thus opening and closing the elevator door. As the door mounting plate 3 moves, it causes the pulley 4 to roll along the slide groove 5. This friction between the pulley 4 and the slide groove 5 generates heat, reducing the viscosity of the grease in the oil storage chamber 7. Furthermore, the sliding of the pulley 4 causes the polyester fibers filling the honeycomb cells to undergo slight deformation during door vibration, promoting the flow of lubricating oil from the honeycomb plate 9. The lithium-based grease complex, after being squeezed out by pressure, returns to its gel state within 3 to 5 seconds, thus preventing the loss of lubricating oil in the oil storage cavity 7. In conjunction with the micron-level capillary channel 10, liquid lubricant seeps out through the micron-level capillary channel 10 to the surface of the slide groove 5. During the rotation of the pulley 4, the pressure roller 13 is driven to rotate along the oil storage cavity 7 via the connecting rod 12. Because the pressure roller 13 is elliptical, its rotation can compress the fluororubber-based composite plate 11, causing the fluororubber-based composite plate 11 to be compressed. The elastic deformation squeezes out the lubricating oil in the oil storage cotton 8, reducing the space in the oil storage cavity 7 and forcing the lubricating oil to be squeezed out from the micron-level capillary channel 10, thereby increasing the lubrication intensity during the operation of the elevator door machine. This reduces the wear between the pulley 4 and the slide rail 5 during the operation of the elevator door machine, thus extending the service life of the elevator door machine. After the elevator door machine has been used for a period of time, the external pipe is connected and fixed to the transmission pipe 14 through the threaded groove 18. Then, the lubricating oil is pumped into the transmission pipe 14 through the external pipe by the oil pump. The external force generated when the lubricating oil enters the oil storage cavity 7 causes the baffle 16 to rotate inward around the hinge, thereby allowing the lubricating oil to enter the interior of the oil storage cavity 7. After adding a certain amount of lubricating oil, the oil pump is turned off to stop the extraction of lubricating oil. Under the action of the elasticity of the elastic sheet 15, the baffle 16 is pushed to the horizontal position, so that the three sets of damping pads 17 are in contact, improving the fit between the baffles 16 and sealing the transmission pipe 14 to prevent the lubricating oil in the oil storage cavity 7 from leaking. This completes the operation of adding lubricating oil to the elevator door machine.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An elevator door operator with a lubrication structure, characterized in that: include: A gate frame (1) is provided, on which a motor is mounted. A gearbox is mounted on the output end of the motor. A first rotating shaft is mounted on the output end of the motor. A transmission belt is driven to the first rotating shaft. A second rotating shaft is driven to the inner surface of the transmission belt. Both the first and second rotating shafts are rotatably connected to the gate frame (1). A slide rail (2) is provided on the gate frame (1). A sliding groove (5) is provided on the gate frame (1). A door hanging plate is driven to the slide rail (2) and the gate frame (1). (3) The two sets of door hanging plates (3) are connected to the transmission belt. The door hanging plates (3) are equipped with pulleys (4). The pulleys (4) are slidably connected to the inside of the slide groove (5). A connecting groove (6) is opened on one side of the door frame (1). An oil storage chamber (7) is opened inside the door frame (1). Oil storage cotton (8) is installed inside the oil storage chamber (7). A honeycomb plate (9) is fixedly connected to the inner wall of the oil storage chamber (7). The honeycomb holes of the honeycomb plate (9) are filled with polyester fiber and lithium grease composite.

2. The elevator door operator with a lubrication structure according to claim 1, characterized in that: The honeycomb panel (9) is located above the oil storage cotton (8), and the groove (5) is provided with micron-level capillary channels (10).

3. An elevator door operator with a lubrication structure according to claim 2, characterized in that: One end of the micron-level capillary channel (10) is connected to the honeycomb plate (9), and a fluororubber-based composite plate (11) is installed on one side of the oil storage cavity (7).

4. An elevator door operator with a lubrication structure according to claim 1, characterized in that: One end of the pulley (4) is rotatably connected to a connecting rod (12), which is slidably connected inside the connecting groove (6). One end of the connecting rod (12) is fitted with a pressure roller (13), which is in contact with one side of the fluororubber-based composite plate (11).

5. An elevator door operator with a lubrication structure according to claim 1, characterized in that: A transmission pipe (14) is installed on one side of the gantry frame (1), and an elastic piece (15) is installed inside the transmission pipe (14). A baffle (16) is hinged to the inner wall of the transmission pipe (14), and one side of the baffle (16) is connected to one end of the elastic piece (15).

6. An elevator door operator with a lubrication structure according to claim 5, characterized in that: A damping pad (17) is fixedly connected to one side of the baffle (16), a threaded groove (18) is provided on the outer side of the transmission pipe (14), and an anti-slip ring (19) is fixedly connected to the outer surface of one end of the transmission pipe (14).

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