Transmission device of elevator car door motor

Abstract

The utility model relates to the technical field of elevator door motors, in particular to a transmission device of an elevator car door motor, which comprises a base and a cross rod, car doors are symmetrically arranged between the cross rod and the base in a sliding mode, a first sliding groove is formed in the cross rod, and screw rods are symmetrically and rotatably arranged on the inner wall of one side of the first sliding groove. Wherein threads are arranged on the left side of one screw rod, threads are arranged on the right side of the other screw rod, the screw rods are sleeved with first sliding blocks in a threaded mode, the bottom ends of the first sliding blocks are fixedly connected with the top ends of the adjacent car doors, and through holes matched with the smooth parts of the screw rods are formed in the first sliding blocks in a penetrating mode. A cavity is formed in one side of the transverse rod, and one end of each screw extends into the cavity and is fixedly connected with a first bevel gear. According to the car door lifting device, the stability of a car door during operation can be effectively improved, the service life of the screws is prolonged, and therefore the practicability of the device is effectively improved.

Description

Technical Field

[0001] The utility model relates to a transmission device of an elevator car door machine, belonging to the technical field of elevator door machines. Background Art

[0002] The elevator door machine is a mechanism responsible for opening and closing the elevator hall car door. When it receives the elevator door opening and closing signals, the elevator door machine 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] According to the announcement number CN214243393U, a screw-nut type elevator door machine transmission device is disclosed, which aims to provide a screw-nut type door machine transmission device, including a car door and a door machine drive motor, the door machine drive motor is connected to a screw, and the other end of the screw is fixed by a bracket; the screw is provided with a plurality of nuts, and a connecting plate is provided on each of the plurality of nuts, and the connecting plate is connected to the car door. According to the number of nuts provided on the screw, the entire door machine device can be connected to one car door or two car doors, and can meet different shaft structure requirements. Compared with the traditional door machine device using belt drive, this door machine device has higher safety performance. When two car doors are used for work, the work between the two car doors has little mutual influence. When the above device is used, the car door is supported only by the screw. Due to the large dead weight of the car door, the load of the screw is large, which easily causes the thread on the screw to be damaged, and at the same time, particles and debris are easily accumulated in the placement groove of the car door, thereby affecting the normal operation of the car door. Utility Model Content

[0004] The purpose of the utility model is to provide a transmission device for an elevator car door machine. The utility model can effectively improve the stability of the car door during operation and increase the service life of the screw, thereby effectively improving the practicability of the device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A transmission device for an elevator car door machine comprises a base and a cross bar, wherein a car door is symmetrically slidably arranged between the cross bar and the base, a slide groove is provided in the cross bar, and screws are symmetrically rotated on the inner wall of one side of the slide groove, wherein a thread is provided on the left side of one screw and a thread is provided on the right side of the other screw, and a slider is threadedly sleeved on the screws, the bottom end of the slider is fixedly connected to the top end of the adjacent car door, and a through hole matching the smooth part of the screw is penetrated through the slider.

[0007] Furthermore, a cavity is opened inside one side of the cross bar, one end of the screw rod extends into the cavity and is fixedly connected to a bevel gear 1, a motor is fixedly provided at the top of the cross bar close to the cavity, the output end of the motor is fixedly connected to a rotating shaft, the bottom end of the rotating shaft extends into the cavity, and a bevel gear 2 is symmetrically fixedly sleeved on the rotating shaft, and the bevel gear 2 is meshed with the adjacent bevel gear 1.

[0008] Furthermore, a second slide groove is provided at the top of the base, and a second slider is symmetrically slidably provided in the second slide groove, and the top of the second slider is fixedly connected to the bottom end of the adjacent car door.

[0009] Furthermore, shovel blades are fixedly provided at the bottom ends of both sides of the sliding block 2, and the shovel blades are in contact with the inner wall of one side adjacent to the sliding groove 2.

[0010] Furthermore, ash dropping holes are provided through the inner walls at the bottom ends of both sides of the second slideway and the inner wall at the middle bottom end of the second slideway.

[0011] Furthermore, a shaft sleeve matching the screw rod is symmetrically and fixedly embedded on the inner wall of one side of the cavity close to the slide groove.

[0012] Furthermore, a threaded sleeve matching the screw rod is fixedly embedded through the sliding block.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with two screw rods and ash dropping holes. When in use, the motor drives the rotating shaft to rotate, so that the rotating shaft drives the bevel gear two to rotate. At this time, the bevel gear two drives the screw rod to rotate through the bevel gear one, and the screw can drive the slider one to move toward or away from each other in the slide groove one, so that the slider one can drive the car door to move toward or away from each other, and at the same time, the screw can support the slider together. When the car door moves, the car door will drive the slider two to move in the slide groove two, and the slider two can support the car door, so as to effectively ensure the stability of the car door during operation and avoid damage to the screw. The shovel piece on the slider two can push the debris in the slide groove two to the ash dropping hole and discharge it, so as to effectively avoid affecting the operation of the car door. The utility model can effectively improve the stability of the car door during operation and improve the service life of the screw, so as to effectively improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a transmission device of an elevator car door machine of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of a transmission device of an elevator car door machine of the utility model;

[0018] Figure 3 It is a top view of a base of a transmission device of an elevator car door machine of the utility model;

[0019] Figure 4 It is a side view of a crossbar of a transmission device of an elevator car door machine of the utility model;

[0020] Numbers in the figure: 1. base; 2. cross bar; 3. car door; 4. slide slot 1; 5. screw; 6. slider 1; 7. cavity; 8. bevel gear 1; 9. motor; 10. rotating shaft; 11. bevel gear 2; 12. slide slot 2; 13. slider 2; 14. dust drop hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A transmission device for an elevator car door machine comprises a base 1 and a cross bar 2, wherein a car door 3 is symmetrically slidably arranged between the cross bar 2 and the base 1, a slide groove 4 is provided in the cross bar 2, and a screw 5 is symmetrically rotatably arranged on the inner wall of one side of the slide groove 4, wherein a thread is provided on the left side of one screw 5 and a thread is provided on the right side of the other screw 5, and a slider 6 is threadedly sleeved on each of the screws 5, and the bottom ends of the sliders 6 are fixedly connected to the top ends of the adjacent car doors 3, and through holes are penetrated through each of the sliders 6 to match the smooth parts of the screws 5.

[0024] Specifically, Figure 1-Figure 4As shown, a cavity 7 is provided inside one side of the cross bar 2, one end of the screw rod 5 extends into the cavity 7 and is fixedly connected to a bevel gear 1 8, a motor 9 is fixedly provided at the top of the cross bar 2 near the cavity 7, a rotating shaft 10 is fixedly connected to the output end of the motor 9, the bottom end of the rotating shaft 10 extends into the cavity 7, a bevel gear 2 11 is symmetrically fixedly sleeved on the rotating shaft 10, the bevel gear 2 11 is meshed with the adjacent bevel gear 1 8, a slide groove 2 12 is provided at the top of the base 1, and a slider 2 13 is symmetrically slidably provided in the slide groove 2 12 The top ends of the sliders 13 are fixedly connected to the bottom ends of the adjacent car doors 3, and the motor 9 drives the rotating shaft 10 to rotate, so that the rotating shaft 10 drives the bevel gear 11 to rotate. At this time, the bevel gear 11 drives the screw 5 to rotate through the bevel gear 8, and the screw 5 can drive the slider 6 to move toward or away from each other in the slide groove 4, so that the slider 6 can drive the car door 3 to move toward or away from each other. When the car door 3 moves, the car door 3 will drive the slider 13 to move in the slide groove 12, and the slider 13 can support the car door 3.

[0025] Specifically, Figure 1-Figure 4 As shown, ash holes 14 are penetrated on the inner walls of the bottom ends of both sides of the slide groove 12 and the inner walls of the middle bottom ends of the slide groove 12, and shaft sleeves matching the screw rod 5 are symmetrically penetrated and fixedly embedded on the inner wall of one side of the cavity 7 close to the slide groove 14, and threaded sleeves matching the screw rod 5 are penetrated and fixedly embedded on the slider 1 6. By providing the ash holes 14, the dust in the slide groove 12 can be discharged through the ash holes 14.

[0026] Example 2 Please refer to Figure 1-Figure 4 The difference between this embodiment and embodiment 1 is that: shovel blades are fixedly provided at the bottom ends of both sides of the slider 13 and the shovel blades are in contact with the inner wall of one side adjacent to the chute 12. By providing the shovel blades, the dust in the chute 12 can be pushed to one side of the chute 12.

[0027] Working principle of the utility model: when in use, the motor 9 drives the rotating shaft 10 to rotate, so that the rotating shaft 10 drives the bevel gear 2 11 to rotate, and at this time the bevel gear 2 11 drives the screw 5 to rotate through the bevel gear 1 8, and the screw 5 can drive the slider 1 6 to move toward or away from each other in the slide groove 1 4, so that the slider 1 6 can drive the car door 3 to move toward or away from each other, and when the car door 3 moves, the car door 3 will drive the slider 2 13 to move in the slide groove 2 12, and the slider 2 13 can support the car door 3, so as to effectively ensure the stability of the car door 3 during operation and avoid damage to the screw 5, and when the slider 2 13 moves, the slider 2 13 will drive the shovel to push the debris in the slide groove 2 12 to the ash dropping hole 14 and discharge it, so as to effectively avoid affecting the operation of the car door 3.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission device for an elevator car door machine, comprising a base (1) and a crossbar (2), characterized in that: A car door (3) is symmetrically slidably arranged between the cross bar (2) and the base (1), a slide groove (4) is provided in the cross bar (2), a screw rod (5) is symmetrically rotatably arranged on the inner wall of one side of the slide groove (4), a thread is provided on the left side of one screw rod (5), and a thread is provided on the right side of the other screw rod (5), a slider (6) is threadedly sleeved on each of the screw rods (5), the bottom end of each of the sliders (6) is fixedly connected to the top end of the adjacent car door (3), and a through hole matching the smooth portion of the screw rod (5) is penetrated through each of the sliders (6).

2. The transmission device of an elevator car door machine according to claim 1, characterized in that: A cavity (7) is provided inside one side of the cross bar (2), one end of each of the screw rods (5) extends into the cavity (7) and is fixedly connected to a bevel gear 1 (8), a motor (9) is fixedly provided at the top end of the cross bar (2) close to the cavity (7), a rotating shaft (10) is fixedly connected to the output end of the motor (9), the bottom end of the rotating shaft (10) extends into the cavity (7), a bevel gear 2 (11) is symmetrically fixedly sleeved on the rotating shaft (10), and each of the bevel gears 2 (11) is meshed with the adjacent bevel gear 1 (8) gear.

3. The transmission device of an elevator car door machine according to claim 1, characterized in that: A second slide groove (12) is provided at the top of the base (1), and a second slide block (13) is symmetrically slidably provided in the second slide groove (12), and the top of the second slide block (13) is fixedly connected to the bottom end of the adjacent car door (3).

4. The transmission device of an elevator car door machine according to claim 3, characterized in that: The bottom ends of both sides of the sliding block 2 (13) are fixed with shovel blades, and the shovel blades are in contact with the inner wall of one side adjacent to the sliding groove 2 (12).

5. The transmission device of an elevator car door machine according to claim 4, characterized in that: Ash dropping holes (14) are provided through the inner walls at the bottom ends of both sides of the second slide groove (12) and the inner wall at the middle bottom end of the second slide groove (12).

6. The transmission device of an elevator car door machine according to claim 2, characterized in that: A shaft sleeve matching the screw rod (5) is symmetrically penetrated and fixedly embedded on the inner wall of one side of the cavity (7) close to the slide groove (4).

7. The transmission device of an elevator car door machine according to claim 1, characterized in that: The sliders (6) are all provided with threaded sleeves fixedly embedded therein and matching the screw rods (5).

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