Traction machine suitable for reformation of additionally-installed elevator in old building

Abstract

The utility model provides a traction machine suitable for reformation of an elevator additionally installed on an old building, which is characterized by comprising a gear box, a motor, a traction wheel shaft, a traction wheel, a brake, an encoder and a junction box, the gear box is a vertical gear box and is provided with a longitudinal input shaft, a transverse output shaft and a gear transmission mechanism, the longitudinal input shaft extends out of the upper end of the gear box, and the transverse output shaft extends out of the lower end of the gear box. The transverse output shaft penetrates through the front and rear side surfaces of the gearbox; the motor is mounted above the gearbox, and a motor shaft of the motor is connected with the longitudinal input shaft; the traction wheel shaft and the brake are arranged on the front side and the rear side of the gearbox. The encoder is mounted in a center hole of the brake; the traction wheel shaft and the encoder are connected with the two ends of the transverse output shaft respectively. And the traction wheel is arranged on the traction wheel shaft. According to the traction machine, the difficulty of adding the elevator is reduced, the space is saved, and the traction machine is suitable for adding the elevator to the old building.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a traction machine suitable for retrofitting elevators into old buildings. Background Art

[0002] With the development of society, people's quality of life is getting higher and higher, and the improvement of residents' needs is also receiving more and more attention. The public welfare projects of renovating old buildings and installing elevators are becoming increasingly urgent. Various cities have planned different plans. The renovation of old buildings not only solves the problem of elderly people climbing stairs, but also improves the quality of life of residents in old communities.

[0003] Considering the original characteristics of old buildings, existing traction machines used in old elevator renovation projects are mostly gearless traction machines with a traction ratio of 2:1. However, these traction machines have some drawbacks in old building renovation projects. They require a large installation space, are complex to install, and are time-consuming and labor-intensive. Utility Model Content

[0004] In order to solve the above problems, the utility model aims to provide a traction machine which reduces the difficulty of installing an elevator and saves space and is suitable for retrofitting elevators in old buildings.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a traction machine suitable for retrofitting elevators in old buildings, which is characterized by comprising: a gear box, a motor, a traction wheel shaft, a traction sheave, a brake, an encoder and a junction box, wherein the gear box is a vertical gear box, having a longitudinal input shaft, a transverse output shaft and a gear transmission mechanism, the longitudinal input shaft extending out of the upper end of the gear box, and the transverse output shaft penetrating the front and rear side surfaces of the gear box; the motor is mounted above the gear box, and the motor shaft of the motor is connected to the longitudinal input shaft; the traction wheel shaft and the brake are arranged on the front and rear sides of the gear box; the encoder is mounted in the center hole of the brake; the traction wheel shaft and the encoder are respectively connected to the two ends of the transverse output shaft; and the traction sheave is mounted on the traction wheel shaft.

[0007] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following feature: the gear transmission mechanism in the gear box is a spiral bevel gear transmission mechanism.

[0008] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following features: wherein the motor is a permanent magnet synchronous motor.

[0009] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following features: a disc wheel is mounted on the upper end of the motor shaft.

[0010] Furthermore, the traction machine provided by the present invention, which is suitable for retrofitting elevators in old buildings, may also have the following features: a protective cover is provided above the traction sheave, and the protective cover correspondingly shields the upper side and the outer end surface of the traction sheave.

[0011] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following feature: the junction box is mounted and fixed on the side of the motor.

[0012] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following feature: the brake is fixed to the gear box by screws.

[0013] Furthermore, the traction machine provided by the present invention and suitable for retrofitting old buildings with elevators may also have the following features: the motor is fixed to the upper end face flange of the gear box by bolts.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1) The traction machine is powered by a permanent magnet synchronous motor, and the torque is amplified by a gearbox driven by spiral bevel gears. It is suitable for elevator installation with a traction ratio of 1:1. It can make the installation of elevators in old buildings simpler and easier, save installation space, and solve the problem of difficulty in installing elevators.

[0016] 2) The traction machine adopts a vertical structural design as a whole, which effectively avoids the risk of oil leakage in the gearbox.

[0017] 3) A disc wheel mechanism is provided on the upper end of the motor of the traction machine, which can be used for emergency rescue by manually operating the disc wheel in the event of an unexpected power outage.

[0018] 4) The traction machine can be installed on a backpack frame, a gantry frame, or a backpack. The installation method is flexible and applicable to a wider range of scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a traction machine in an embodiment of the utility model which is suitable for retrofitting old buildings with elevators.

[0020] Markings in the figure: 1. Motor; 2. Protective cover; 3. Traction wheel shaft; 4. Traction wheel; 5. Gearbox; 6. Brake; 7. Encoder; 8. Junction box; 9. Disc wheel. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the following embodiments are combined with the accompanying drawings to specifically illustrate the technical solutions of the present invention.

[0022] like Figure 1 As shown, the embodiment of the present invention provides a traction machine suitable for retrofitting elevators in old buildings. The traction machine includes: a gear box 5, a motor 1, a traction sheave shaft 3, a traction sheave 4, a brake 6, an encoder 7, a junction box 8, a disc wheel 9, and a protective cover 2.

[0023] Gearbox 5 is a vertical gearbox with a longitudinal input shaft, a transverse output shaft, and a gear transmission mechanism. The longitudinal input shaft extends from the upper end of gearbox 5, while the transverse output shaft extends through the front and rear sides of gearbox 5. The gear transmission mechanism in gearbox 5 is a spiral bevel gear mechanism. The vertical gearbox reduces the output speed and amplifies the torque; it also reverses the transmission direction. Due to its high output torque, the installed elevator can be installed with a 1:1 traction ratio, providing a feasible solution for retrofitting elevators in existing buildings. Furthermore, the vertical structure of the gearbox prevents oil leakage from the high-speed rotating shaft due to oil seal wear.

[0024] The motor 1 is mounted above the gearbox 5 and is bolted to the upper flange of the gearbox 5. The motor 1 is a permanent magnet synchronous motor. The motor shaft of the motor 1 is connected to the longitudinal input shaft of the gearbox 5.

[0025] As a preferred solution, a disc wheel 9 is installed on the upper end of the motor 1 shaft. When an unexpected power outage occurs, the staff can manually rotate the disc wheel 9 to reset the elevator car and implement emergency rescue.

[0026] As a preferred solution, the junction box 8 is mounted and fixed on the side of the motor 1, which has a compact layout and saves space.

[0027] The traction sheave shaft 3 and brake 6 are located at the front and rear ends of the gearbox 5. Brake 6 is secured to the gearbox 5 with screws. Brake 6 is used to brake the lateral output shaft, enhancing braking safety. Encoder 7 is installed in the center hole of brake 6. The traction sheave shaft 3 and encoder 7 are connected to both ends of the lateral output shaft. The traction sheave 4 is mounted on the traction sheave shaft 3.

[0028] As a preferred solution, a protective cover 2 is provided above the traction sheave 4, which shields the upper side and the outer end surface of the traction sheave, thereby reducing interference of the external environment on the traction sheave 4 and the wire rope installed on the traction sheave.

[0029] The traction machine of this embodiment, suitable for retrofitting elevators in older buildings, can be installed using either a backpack or gantry installation method. The backpack installation method involves installing the traction machine at the rear, left, or right side of the elevator shaft, making it suitable for installation in confined spaces. The gantry installation method uses a gantry as support for the traction machine, effectively supporting greater weight and suitable for larger installation spaces. The traction machine of this embodiment, suitable for retrofitting elevators in older buildings, offers greater flexibility in installation methods and is applicable to a wider range of scenarios.

[0030] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A traction machine suitable for retrofitting elevators in old buildings, characterized in that: include: Gearbox, motor, traction sheave shaft, traction sheave, brake, encoder and junction box, The gearbox is a vertical gearbox having a longitudinal input shaft, a transverse output shaft and a gear transmission mechanism, wherein the longitudinal input shaft extends out of the upper end of the gearbox and the transverse output shaft passes through the front and rear sides of the gearbox; The motor is installed above the gear box, and the motor shaft of the motor is connected to the longitudinal input shaft; The traction sheave shaft and the brake are arranged on the front and rear sides of the gear box; The encoder is installed in the center hole of the brake; The traction sheave shaft and the encoder are respectively connected to both ends of the transverse output shaft; The traction sheave is mounted on the traction sheave shaft.

2. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, The gear transmission mechanism in the gear box is a spiral bevel gear transmission mechanism.

3. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, The motor is a permanent magnet synchronous motor.

4. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, A disc wheel is installed on the upper end of the motor shaft.

5. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, A protective cover is provided above the traction wheel, and the protective cover correspondingly shields the upper side and the outer end surface of the traction wheel.

6. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, The junction box is mounted and fixed on the side of the motor.

7. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, The brake is fixed to the gear box by screws.

8. The traction machine suitable for retrofitting elevators in old buildings as claimed in claim 1, characterized in that: in, The motor is fixed to the upper end face flange of the gear box by means of bolts.

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