Super-large-width three-folding type permanent magnet synchronous door machine

Abstract

The utility model relates to the technical field of elevator equipment, in particular to an ultra-large-width three-folding type permanent magnet synchronous door machine, which comprises a door machine body, a transmission mechanism, a door knife mechanism, a slow door hanging plate, a middle door hanging plate and a quick door hanging plate which are respectively in one-to-one correspondence with a short rail, a middle rail and a long rail, an oil injection mechanism is arranged on the door machine body and comprises a box body, a quantitative supply module, an oil injection module and an air pump, a rotating groove is formed in the bottom in the box body, a feeding port is formed in one side of the bottom of the rotating groove, and the quantitative supply module comprises a rotating shaft and a motor; the oil injection module comprises an oil storage part, an oil injection valve and a spray head; and when the slow door hanging plate, the middle door hanging plate and the quick door hanging plate are overlapped, the oil injection mechanism is positioned above the door wheel. Therefore, the use amount of the lubricant is more accurately controlled, and the operation process of lubricating and maintaining the door wheel is simpler and more efficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator equipment, and relates to a three-fold permanent magnet synchronous door machine with an extra-large door width. Background Technique

[0002] A three-fold permanent magnet synchronous door machine refers to a door machine system that uses a permanent magnet synchronous motor as a power source and realizes the folding of elevator door panels into three parts to the two sides or one side when opening through a specific mechanism, and is particularly suitable for places that require a relatively large door width and a high barrier-free passage ability.

[0003] Due to the large travel of the door leaf of the three-fold permanent magnet synchronous door machine with an extra-large door width, the door wheels are prone to wear, which in turn leads to problems such as loud noise during the operation of the door leaf and uneven closing of the door. It is necessary to increase the lubrication of the door wheels to cope with this situation. During the lubrication process, it is necessary to accurately control the amount of lubricant. Excessive lubricant may form an oil film on the surface of the guide rail, which will instead increase the frictional resistance. Too little lubricant may not meet the lubrication requirements of the guide rail, resulting in increased wear. Content of the Utility Model

[0004] The purpose of the utility model is to propose a three-fold permanent magnet synchronous door machine with an extra-large door width in view of the above problems existing in the prior art.

[0005] The object of the present utility model can be achieved by the following technical solutions: A super-large door-width three-fold permanent magnet synchronous door machine, including a door machine body, a transmission mechanism is installed on the door machine body, the transmission mechanism includes a permanent magnet synchronous motor and a synchronous belt that is power-connected to the permanent magnet synchronous motor, a door knife mechanism is installed on the door machine body to realize the synchronous movement of the landing door and the car door, a short rail, a middle rail and a long rail are sequentially arranged on the door machine body in ascending order of length, and there are also slow door hanging plates, middle door hanging plates and fast door hanging plates respectively corresponding to the short rail, the middle rail and the long rail for hanging the door leaves, at least one door wheel that is respectively in rolling fit with the short rail, the middle rail and the long rail is installed on each of the slow door hanging plates, the middle door hanging plates and the fast door hanging plates, an oil injection mechanism is provided on the door machine body, the oil injection mechanism includes a box body for storing lubricating oil inside, a quantitative replenishment module, an oil spraying module and an air pump, three rotating grooves respectively corresponding to the short rail, the middle rail and the long rail are opened at the bottom inside the box body, a feed port is opened on one side of the bottom of the rotating groove, the quantitative replenishment module includes a number of rotating shafts rotatably penetrating through the box body and a motor, a disc that is in rotational fit with the inner wall of the rotating groove is provided at one end of the rotating shaft, the other end thereof extends out of the box body and is provided with a gear, notches are opened on the circumference of the disc, and the notches corresponding to the short rail, the middle rail and the long rail increase in sequence, the gears are connected by a transmission belt, and the motor is power-connected to one of the rotating shafts, the oil spraying module includes an oil storage part connected below the rotating groove, a material cavity communicated with the feed port is provided inside the oil storage part, an air nozzle connected to the air pump is provided on one side of the oil storage part, an oil injection valve is connected to the lower end of the oil storage part, and a nozzle is connected to the lower end of the oil injection valve, the synchronous belt is connected to the fast door hanging plate to drive the slow door hanging plate, the middle door hanging plate and the fast door hanging plate to slide towards one side or both sides of the door machine body and overlap, and when the slow door hanging plate, the middle door hanging plate and the fast door hanging plate overlap, the oil injection mechanism is located above the door wheel.

[0006] Preferably, U-shaped shielding plates that can cover above the door wheels are provided at the upper ends of the slow door hanging plates, the middle door hanging plates and the fast door hanging plates, and through holes located directly above the door wheels are opened on the shielding plates.

[0007] Preferably, a lifting mechanism that can drive the box body to lift and can make the nozzle extend into the through hole is provided on the door machine body, the lifting mechanism includes a cylinder, a step is formed by the door machine body protruding inwards, the cylinder is fixed on the step and its telescopic end is fixedly connected to the box body, a number of vertically arranged optical axes are fixedly connected to the door machine body, the box body is slidably connected to the optical axes, and a spring is sleeved at the bottom of the optical axis, and both ends of the spring are respectively abutted against the bottom of the optical axis and the lower end surface of the box body.

[0008] Preferably, the edge of the opening of the rotating groove is chamfered.

[0009] Preferably, the short rail, the middle rail and the long rail are installed at the same height.

[0010] Compared with the prior art, the present utility model has the following advantages:

[0011] According to the different strokes of the three-fold door machine door wheel on rails of different lengths, the amount of lubricant can be more precisely controlled, effectively improving the durability of the door wheel and the rail, and making the operation process of door wheel lubrication and maintenance simpler and more efficient, effectively reducing the difficulty and cost of door wheel and rail lubrication and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall elevation structure of the present utility model.

[0013] Figure 2 is a schematic diagram of the sectional structure at the oil injection mechanism.

[0014] Figure 3 is Figure 2 a schematic enlarged view of the structure at A.

[0015] Figure 4 is a schematic diagram of the transverse sectional structure of the box body.

[0016] Figure 5 is a schematic diagram of the transverse sectional structure at the bottom of the box body.

[0017] In the figure, 1 is the door machine body; 11 is the step; 2 is the transmission mechanism; 21 is the permanent magnet synchronous motor; 22 is the synchronous belt; 3 is the door knife mechanism; 4 is the short rail; 41 is the slow door hanging plate; 42 is the baffle plate; 421 is the through hole; 5 is the middle rail; 51 is the middle door hanging plate; 6 is the long rail; 61 is the fast door hanging plate; 7 is the door wheel; 8 is the oil injection mechanism; 81 is the box body; 811 is the rotating groove; 8111 is the feeding port; 82 is the quantitative replenishment module; 821 is the rotating shaft; 822 is the disc; 8221 is the notch; 823 is the gear; 824 is the transmission belt; 825 is the motor; 83 is the oil injection module; 831 is the oil storage part; 8311 is the material cavity; 8312 is the air nozzle; 832 is the oil injection valve; 833 is the nozzle; 84 is the air pump; 9 is the lifting mechanism; 91 is the cylinder; 92 is the optical axis; 93 is the spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following are specific embodiments of the present utility model in combination with the drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0019] Such as Figures 1 - 5As shown in the figure, a super-large door-width three-fold permanent magnet synchronous door machine includes a door machine body 1. A transmission mechanism 2 is installed on the door machine body 1. The transmission mechanism 2 includes a permanent magnet synchronous motor 21 and a synchronous belt 22 that is power-connected to the permanent magnet synchronous motor 21. A door knife mechanism 3 is installed on the door machine body 1 to achieve synchronous movement of the landing door and the car door. A short rail 4, a middle rail 5, and a long rail 6 are sequentially arranged on the door machine body 1 in ascending order of length. It also includes a slow door hanging plate 41, a middle door hanging plate 51, and a fast door hanging plate 61 that are respectively used for hanging the door leaves and correspond to the short rail 4, the middle rail 5, and the long rail 6 one by one. At least one door wheel 7 that is respectively in rolling cooperation with the short rail 4, the middle rail 5, and the long rail 6 is installed on the slow door hanging plate 41, the middle door hanging plate 51, and the fast door hanging plate 61. An oil injection mechanism 8 is provided on the door machine body 1. The oil injection mechanism 8 includes a box body 81 for storing lubricating oil inside, a quantitative supply module 82, an oil injection module 83, and an air pump 84. Three rotating grooves 811 that respectively correspond to the short rail 4, the middle rail 5, and the long rail 6 are opened at the bottom inside the box body 81. A feed port 8111 is opened on one side of the bottom of the rotating groove 811. The quantitative supply module 82 includes a plurality of rotating shafts 821 that penetrate through the box body 81 and a motor 825. One end of the rotating shaft 821 is provided with a disc 822 that fits and rotates with the inner wall of the rotating groove 811. The other end thereof extends out of the box body 81 and is provided with a gear 823. Notches 8221 are opened in the circumferential direction of the disc 822. Among them, the notches 8221 corresponding to the short rail 4, the middle rail 5, and the long rail 6 increase in sequence. The gears 823 are connected by a transmission belt 824. The motor 825 is power-connected to one of the rotating shafts 821. The oil injection module 83 includes an oil storage part 831 connected below the rotating groove 811. A material cavity 8311 that communicates with the feed port 8111 is provided inside the oil storage part 831. An air nozzle 8312 connected to the air pump 84 is provided on one side of the oil storage part 831. The lower end of the oil storage part 831 is connected with an oil injection valve 832. The lower end of the oil injection valve 832 is connected with a nozzle 833. The synchronous belt 22 is connected to the fast door hanging plate 61 to drive the slow door hanging plate 41, the middle door hanging plate 51, and the fast door hanging plate 61 to slide and overlap towards one side or both sides of the door machine body 1. Among them, when the slow door hanging plate 41, the middle door hanging plate 51, and the fast door hanging plate 61 overlap, the oil injection mechanism 8 is located above the door wheel 7.

[0020] The working principle of the present invention in actual application: Since the door wheels 7 on the slow door hanging plate 41, the middle door hanging plate 51, and the fast door hanging plate 61 are respectively matched with the short rail 4, the middle rail 5, and the long rail 6, their rolling strokes are completely different, and it is necessary to control the amount of lubricant used in an incremental manner;

[0021] During maintenance, first, the permanent magnet synchronous motor 21 drives the synchronous belt 22 to drive the slow door hanging plate 41, the middle door hanging plate 51, and the shutter hanging plate 61 to slide and overlap towards one or both sides of the door machine body 1. Then, start the motor 825 to drive the gear 823 to rotate through the transmission belt 824. At this time, the rotating shaft 821 drives the disc 822 to rotate, and the lubricating oil in the box body 81 will enter the notch 8221 on the disc 822. The rotation of the disc 822 will align the notch 8221 with the feed port 8111, allowing the lubricating oil to enter the material cavity 8311. It can be understood that the notches 8221 corresponding to the short rail 4, the middle rail 5, and the long rail 6 increase in sequence. Furthermore, the lubricating oil accumulated in the material cavities 8311 corresponding to the short rail 4, the middle rail 5, and the long rail 6 can also increase in sequence, so as to more precisely control the amount of lubricant for different lengths of tracks. Then, start the air pump 84 to spray the lubricating oil in the material cavity 8311 onto the door wheel 7 through the nozzle 833. Generally, lubricants have adhesiveness. Finally, start the permanent magnet synchronous motor 21 again to drive the synchronous belt 22 to drive the slow door hanging plate 41, the middle door hanging plate 51, and the shutter hanging plate 61 to unfold and overlap multiple times, so that the lubricating oil can be evenly applied to the door wheel 7, the short rail 4, the middle rail 5, and the long rail 6.

[0022] Further, as Figure 3 shown, U-shaped shielding plates 42 that can cover above the door wheel 7 are provided at the upper ends of the slow door hanging plate 41, the middle door hanging plate 51, and the shutter hanging plate 61, and through holes 421 located directly above the door wheel 7 are opened on the shielding plates 42.

[0023] In this embodiment, the shielding plate 42 is used to prevent dust from accumulating on the door wheel 7 and affecting the lubrication quality, and the lubricant can be sprayed onto the door wheel 7 through the through hole 421.

[0024] Further, a lifting mechanism 9 that can drive the box body 81 to lift and enable the nozzle 833 to extend into the through hole 421 is provided on the door machine body 1. The lifting mechanism 9 includes a cylinder 91. A step 11 is formed by the inward projection of the door machine body 1. The cylinder 91 is fixed on the step 11 and its telescopic end is fixedly connected to the box body 81. A plurality of vertically arranged optical axes 92 are fixedly connected to the door machine body 1. The box body 81 is slidably connected to the optical axes 92, and a spring 93 is sleeved at the bottom of the optical axis 92. The two ends of the spring 93 are respectively abutted against the bottom of the optical axis 92 and the lower end surface of the box body 81.

[0025] In this embodiment, the cylinder 91 can drive the box body 81 to lift along the optical axis 92, and enable the nozzle 833 to extend into the through hole 421 and be close to the outer surface of the door wheel 7. This can not only prevent the lubricant from splashing onto other door machine components, but also improve the accuracy of lubricant spraying.

[0026] The opening edge of the rotating groove 811 is chamfered. When the lubricant in the box body 81 is almost used up, the chamfer at the opening edge of the rotating groove 811 can guide the remaining lubricant into the rotating groove 811 to improve the utilization rate of the lubricant.

[0027] The short rail 4, the middle rail 5 and the long rail 6 are installed at the same height, so that the installation height of the nozzle 833 is also the same, which is convenient for the installation and maintenance of the oil injection mechanism 8.

[0028] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A three-fold permanent magnet synchronous door machine with an extra-large door width, comprising a door machine body (1), a transmission mechanism (2) being mounted on the door machine body (1), the transmission mechanism (2) comprising a permanent magnet synchronous motor (21) and a synchronous belt (22) connected to the permanent magnet synchronous motor (21), a door knife mechanism (3) being mounted on the door machine body (1) to achieve synchronous movement of a hall door and a car door, characterized in that: The door machine body (1) is provided with a short rail (4), a middle rail (5) and a long rail (6) in order from short to long, and also includes a slow door hanging plate (41), a middle door hanging plate (51) and a shutter hanging plate (61) which are respectively matched with the short rail (4), the middle rail (5) and the long rail (6) for hanging door leaves. The slow door hanging plate (41), the middle door hanging plate (51) and the shutter hanging plate (61) are each equipped with at least one door wheel (7) which is respectively matched with the short rail (4), the middle rail (5) and the long rail (6) in rolling manner. The door machine body (1) is provided with an oil injection mechanism (8). The oil injection mechanism ( 8) comprises a box body (81) for storing lubricating oil, a quantitative supply module (82), an oil injection module (83) and an air pump (84); the box body (81) has three rotating grooves (811) at the bottom thereof, which correspond to the short rail (4), the middle rail (5) and the long rail (6) respectively; a feeding port (8111) is provided at one side of the bottom of the rotating groove (811); the quantitative supply module (82) comprises a plurality of rotating shafts (821) rotatably arranged on the box body (81) and a motor (825); one end of the rotating shaft (821) is provided with a disc (822) which rotates in contact with the inner wall of the rotating groove (811); The other end of the shaft (821) extends out of the box body (81) and is provided with a gear (823). The disc (822) is provided with a notch (8221) in the circumferential direction, wherein the notches (8221) corresponding to the short rail (4), the middle rail (5) and the long rail (6) are successively larger. The gears (823) are connected by a transmission belt (824). The motor (825) is connected to one of the rotating shafts (821) by power. The oil injection module (83) includes an oil storage portion (831) connected to the bottom of the rotating groove (811). A material cavity (8311) communicating with the feed port (8111) is provided in the oil storage portion (831). A gas nozzle (8312) connected to an air pump (84) is provided on one side of the oil storage part (831), an oil injection valve (832) is connected to the lower end of the oil storage part (831), and a nozzle (833) is connected to the lower end of the oil injection valve (832). A synchronous belt (22) is connected to the shutter hanging plate (61) to drive the slow door hanging plate (41), the middle door hanging plate (51) and the shutter hanging plate (61) to slide toward one side or both sides of the door machine body (1) and overlap, wherein when the slow door hanging plate (41), the middle door hanging plate (51) and the shutter hanging plate (61) overlap, the oil injection mechanism (8) is located above the door wheel (7).

2. The super wide door width three-fold permanent magnet synchronous door machine according to claim 1, characterized in that: The upper ends of the slow door hanging plate (41), the middle door hanging plate (51) and the shutter hanging plate (61) are all provided with a U-shaped shielding plate (42) capable of covering the upper part of the door wheel (7), and the shielding plate (42) is provided with a through hole (421) located directly above the door wheel (7).

3. The super wide door width three-fold permanent magnet synchronous door machine according to claim 2, characterized in that: The door machine body (1) is provided with a lifting mechanism (9) capable of driving the box body (81) to rise and fall and allowing the nozzle (833) to extend into the through hole (421). The lifting mechanism (9) comprises a cylinder (91). The door machine body (1) is protruded inward to form a step (11). The cylinder (91) is fixed on the step (11) and its telescopic end is fixedly connected to the box body (81). A plurality of vertically arranged optical axes (92) are fixedly connected to the door machine body (1). The box body (81) is slidably connected to the optical axis (92). A spring (93) is sleeved on the bottom of the optical axis (92). The two ends of the spring (93) are respectively in contact with the bottom of the optical axis (92) and the lower end surface of the box body (81).

4. The ultra-wide three-fold permanent magnet synchronous door machine according to claim 1, characterized in that: The opening edge of the rotating groove (811) is chamfered.

5. The super wide door width three-fold permanent magnet synchronous door machine according to claim 1, characterized in that: The short rail (4), the middle rail (5) and the long rail (6) are installed at the same height.

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