Double-support back guide rail elevator traction machine

Abstract

The utility model discloses a double-support back guide rail elevator traction machine, which enables the traction machine to occupy a small space on the back of a shaft, improves the overall installation strength of the traction machine, and ensures the reliable arrangement of the traction machine when an elevator runs. The traction machine comprises a machine base, the machine base comprises a rear seat and a front end cover, the upper position, the lower position, the left position and the right position, corresponding to the front end cover, of the rear seat are each provided with an integrated front convex connecting plate, through connecting holes are formed in the four corners of the front convex connecting plate located on the lower portion, and a motor mounting cavity and a traction wheel mounting cavity are formed after the front end cover covers the corresponding end face of the front convex connecting plate of the rear seat; a front end center concave hole is formed in the inner end of the center area of the front end cover; the motor comprises a stator core and a rotor; a rotating shaft; a traction sheave; and two groups of brakes. The motor mounting cavity comprises a stator mounting ring cavity, a central mounting hole and a rotor mounting cavity, the rotor comprises an outer ring driving end, a middle ring traction wheel forward convex mounting end and an inner ring connecting end, and the stator iron core is sleeved in the stator mounting ring cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of traction machine structures, in particular to a double-support back guide rail elevator traction machine. Background Art

[0002] Among the elevators used in villas, backpack elevators are more common and have good economy. However, when assembling existing backpack elevators, due to the deep axial depth of the traction machine, it needs to occupy more back space of the shaft, which will reduce the overall space of the car. For this reason, it is necessary to develop an elevator traction machine that occupies a small axial space. However, while the axial space of the existing elevator traction machine is reduced, the deformation of the traction machine is relatively large during the operation of the elevator, which leads to increased safety hazards in the later stage. For this reason, it is urgently necessary to develop an elevator traction machine that occupies a small back space of the shaft and has good support. Summary of the invention

[0003] In view of the above problems, the utility model provides a double-support back guide rail elevator traction machine, which makes the traction machine occupy less space at the back of the hoistway and improves the overall installation strength of the traction machine, ensuring the reliable arrangement of the traction machine when the elevator is running.

[0004] A double-support back guide rail elevator traction machine, characterized in that it comprises:

[0005] The machine base includes a rear seat and a front cover. The rear seat is provided with integrated front convex connecting plates at the upper, lower, left and right positions corresponding to the front cover. The four corners of the front convex connecting plate located at the bottom are provided with through connecting holes. The front cover is mounted on the corresponding end surface of the front convex connecting plate of the rear seat to form a motor installation cavity and a traction wheel installation cavity. The central inner concave hole of the front end is formed in the central middle of the central area of ​​the front cover.

[0006] A motor, comprising a stator core and a rotor;

[0007] Rotating shaft;

[0008] Traction sheave;

[0009] and two sets of brakes;

[0010] The motor mounting cavity comprises a stator mounting ring cavity, a center mounting hole, and a rotor mounting cavity; the rotor comprises an outer ring driving end, a middle ring traction wheel protruding mounting end, and an inner ring connecting end; the stator core is sleeved in the stator mounting ring cavity; the outer ring driving end located at the rear end is arranged around the outer periphery of the stator core; the inner ring connecting end is sleeved in the axial middle end of the rotating shaft; the rear end of the rotating shaft is mounted on the center mounting hole through a first bearing; the front end of the rotating shaft is mounted in the center inner concave hole through a second bearing; the circumference of the traction wheel is fixedly connected to the middle ring traction wheel protruding mounting end through a plurality of fasteners; a rotational spacing is left between the center inner wall of the traction wheel and the outer ring wall of the center inner concave hole.

[0011] It is further characterized by:

[0012] The front convex connecting plates on the left and right sides are respectively fixed with brakes at positions corresponding to the outer ring driving ends of the rotors, and the brake pads of the brakes are used to brake the outer ring surface of the outer ring driving end of the rotor;

[0013] An encoder is also arranged in the depth area of ​​the central inner concave hole, and the encoder is fixedly mounted in the central area of ​​the central front end surface of the rotating shaft. The rotating shaft is arranged toward the elevator door, which makes it easy to disassemble the encoder and facilitate the maintenance of the entire traction machine.

[0014] The diameter of the traction wheel is greater than the width of the lower protruding connecting plate, which enables the traction wire to operate reliably;

[0015] The front end cover is provided with an installation notch in the lateral direction corresponding to the position where the traction wheel ring cloth is fixed, and the installation notch makes the assembly of the traction wheel and the forward protruding installation end of the middle ring traction wheel of the rotor quick and convenient.

[0016] After adopting the above technical solution, the rear seat is respectively fixed with an integrated front convex connecting plate at the upper, lower, left and right positions corresponding to the front end cover, and the four corners of the front convex connecting plate located at the bottom are provided with through connecting holes. After the front end cover is mounted on the corresponding end surface of the front convex connecting plate of the rear seat, a motor mounting cavity and a traction wheel mounting cavity are formed, which makes the axial distance of the entire machine base relatively short, and the stator core is sleeved in the stator mounting ring cavity, the outer ring driving end located at the rear end is arranged on the outer periphery of the stator core, the inner ring connecting end is sleeved on the axial middle end of the rotating shaft, and the rear end of the rotating shaft is mounted on the center through the first bearing. The front end of the rotating shaft is installed in the central concave hole through the second bearing, and the circumference of the traction wheel is fixedly connected to the front protruding mounting end of the middle ring traction wheel through a number of fasteners. A rotation spacing is left between the central inner wall of the traction wheel and the outer ring wall of the central concave hole, so that the distance of the rotating shaft includes the axial distance of the motor and the axial distance of the traction wheel, and the traction wheel is supported on the machine base supported by the front cover and the rear cover as a whole through the rotor and the rotating shaft, which makes the traction machine occupy a small space at the back of the hoistway, and improves the overall installation strength of the traction machine, ensuring the reliable arrangement of the traction machine when the elevator is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional Figure 1 Structural diagram;

[0018] Figure 2 The three-dimensional Figure 1 Structural diagram;

[0019] Figure 3 It is a schematic diagram of the main view structure of the utility model;

[0020] Figure 4 for Figure 3 AA cross-sectional diagram of ;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Base 10, motor 20, stator core 21, rotor 22, outer ring driving end 221, middle ring traction wheel forward convex mounting end 222, inner ring connecting end 223, rotating shaft 30, traction wheel 40, brake 50, rear seat 60, front end cover 70, front center inner concave hole 71, mounting notch 72, forward convex connecting plate 80, through connecting hole 801, upper forward convex connecting plate 81, lower forward convex connecting plate 82, left forward convex connecting plate 83, right forward convex connecting plate 84, motor mounting cavity 90, stator mounting ring cavity 91, center mounting hole 92, rotor mounting cavity 93, traction wheel mounting cavity 100, first bearing 110, second bearing 120, fastening bolt 130, encoder 140, rotation spacing 150. DETAILED DESCRIPTION

[0023] Double-support back guide elevator traction machine, see Figure 1-Figure 4 , which includes a machine base 10, a motor 20, a rotating shaft 30, a traction wheel 40, and two sets of brakes 50;

[0024] The machine base 10 includes a rear seat 60 and a front cover 70. The rear seat 60 is provided with convex connecting plates 80 corresponding to the upper, lower, left and right positions of the front cover 70, specifically an upper convex connecting plate 81, a lower convex connecting plate 82, a left convex connecting plate 83 and a right convex connecting plate 84. The four corners of the lower convex connecting plate 82 located below are provided with through connecting holes 801. The front cover 70 is covered on the corresponding end faces of the convex connecting plates 80 of the rear seat 60 to form a motor mounting cavity 90 and a traction wheel mounting cavity 100. The thickness of each group of convex connecting plates 80 ensures stable and reliable support. Long threaded holes are respectively provided on both sides of the front end face of each group of convex connecting plates 80. The long bolts penetrate the connecting holes of the front cover 70 and are then threadedly inserted into the long threaded holes to ensure stable and reliable connection. The parts are made quickly and conveniently. A front end center inner concave hole 71 is formed in the inner middle of the central area of ​​the front cover 70.

[0025] The rear seat 60 and four sets of front convex connecting plates 80 are integrally cast;

[0026] The motor 20 includes a stator core 21 and a rotor 22, wherein the rotor 22 is arranged to wrap around the outer periphery of the stator core 21;

[0027] Both sets of brakes 50 are brakes of brake pad assemblies;

[0028] The motor mounting cavity 90 includes a stator mounting ring cavity 91, a center mounting hole 92, and a rotor mounting cavity 93. The rotor 22 includes an outer ring driving end 221, a middle ring traction wheel forward protruding mounting end 222, and an inner ring connecting end 223. The stator core 21 is fixedly sleeved in the stator mounting ring cavity 91. The outer ring driving end 221 located at the rear end is arranged on the outer periphery of the stator core 21 and is placed in the rotor mounting cavity 93. The inner ring connecting end 223 is sleeved on the axial middle end of the rotating shaft 30. The rear end of the rotating shaft 30 is mounted on the center mounting hole 92 through a first bearing 110, and the front end of the rotating shaft 30 is mounted in the center inner recessed hole 71 through a second bearing 120. The circumference of the traction wheel 40 is fixedly connected to the middle ring traction wheel forward protruding mounting end 222 through a plurality of fastening bolts 130. A rotation spacing of 150 is left between the center inner wall of the traction wheel 40 and the outer ring wall of the center inner recessed hole 71.

[0029] In a specific implementation, the left front convex connecting plate 83 and the right front convex connecting plate 84 are respectively fixed with brakes 50 at positions corresponding to the outer ring driving end 221 of the rotor 22, and the brake pads of the brakes 50 are used to brake the outer ring surface of the outer ring driving end 221 of the rotor 22;

[0030] An encoder 140 is also provided in the depth area of ​​the central inner concave hole 71. The encoder 140 is fixedly mounted in the central area of ​​the central front end surface of the rotating shaft. The rotating shaft 30 is arranged toward the elevator door, which makes it easy to disassemble the encoder 140 and facilitate the maintenance of the entire traction machine.

[0031] The diameter of the traction sheave 40 is larger than the width of the lower protruding connecting plate 80, which enables the traction wire to operate reliably;

[0032] A mounting notch 72 is provided in the transverse direction of the front end cover 70 corresponding to the position where the traction wheel 40 is fixedly mounted. The mounting notch 72 allows for quick and convenient assembly of the traction wheel 40 and the protruding mounting end 222 of the middle ring traction wheel of the rotor 22 .

[0033] The rear seat is provided with an integrated front convex connecting plate at the upper, lower, left and right positions corresponding to the front end cover, and the four corners of the front convex connecting plate located at the bottom are provided with through connecting holes. After the front end cover is installed on the corresponding end surface of the front convex connecting plate of the rear seat, a motor mounting cavity and a traction wheel mounting cavity are formed, which makes the axial distance of the entire machine base relatively short, and the stator core is sleeved in the stator mounting ring cavity, the outer ring driving end located at the rear end is arranged on the outer periphery of the stator core, and the inner ring connecting end is sleeved on the axial middle end of the rotating shaft, and the rear end of the rotating shaft is installed in the central mounting hole through the first bearing. The front end is installed in the central concave hole through the second bearing, and the circumference of the traction wheel is fixedly connected to the front protruding mounting end of the middle ring traction wheel through a number of fasteners. A rotation spacing is left between the central inner wall of the traction wheel and the outer ring wall of the central concave hole, so that the distance of the rotating shaft includes the axial distance of the motor and the axial distance of the traction wheel, and the traction wheel is supported on the machine base supported by the front cover and the rear cover as a whole through the rotor and the rotating shaft, which makes the traction machine occupy a small space at the back of the hoistway and improves the overall installation strength of the traction machine, ensuring the reliable arrangement of the traction machine when the elevator is running.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Double-support back guide rail elevator traction machine, characterized in that: It includes: The machine base includes a rear seat and a front cover. The rear seat is provided with integrated front convex connecting plates at the upper, lower, left and right positions corresponding to the front cover. The four corners of the front convex connecting plate located at the bottom are provided with through connecting holes. The front cover is mounted on the corresponding end surface of the front convex connecting plate of the rear seat to form a motor installation cavity and a traction wheel installation cavity. The central inner concave hole of the front end is formed in the central middle of the central area of ​​the front cover. A motor, comprising a stator core and a rotor; Rotating shaft; Traction sheave; and two sets of brakes; The motor mounting cavity comprises a stator mounting ring cavity, a center mounting hole, and a rotor mounting cavity; the rotor comprises an outer ring driving end, a middle ring traction wheel protruding mounting end, and an inner ring connecting end; the stator core is sleeved in the stator mounting ring cavity; the outer ring driving end located at the rear end is arranged around the outer periphery of the stator core; the inner ring connecting end is sleeved in the axial middle end of the rotating shaft; the rear end of the rotating shaft is mounted on the center mounting hole through a first bearing; the front end of the rotating shaft is mounted in the center inner concave hole through a second bearing; the circumference of the traction wheel is fixedly connected to the middle ring traction wheel protruding mounting end through a plurality of fasteners; a rotational spacing is left between the center inner wall of the traction wheel and the outer ring wall of the center inner concave hole.

2. The double-support back guide rail elevator traction machine according to claim 1, characterized in that: Brakes are fixedly mounted on the left and right front convex connection plates at positions corresponding to the outer ring driving ends of the rotors, and the brake pads of the brakes are used to brake the outer ring surface of the outer ring driving end of the rotor.

3. The double-support back guide rail elevator traction machine according to claim 1, characterized in that: An encoder is also arranged in the depth area of ​​the central inner concave hole. The encoder is fixedly mounted in the central area of ​​the central front end surface of the rotating shaft. The rotating shaft is arranged toward the elevator car door.

4. The double-support back guide rail elevator traction machine according to claim 1, characterized in that: The diameter of the traction wheel is greater than the width of the lower forward protruding connecting plate.

5. The double-support back guide rail elevator traction machine according to claim 1, characterized in that: The front end cover is provided with a mounting notch in the lateral direction corresponding to the position where the traction wheel ring cloth is fixed.

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