Lifting device and elevator

Abstract

The invention relates to a lifting device. A lifting device for an elevator without a machine room comprises a car guide rail; the first ends, on the same side of the supporting assembly, of the lift car guide rails extend into the supporting assembly and are connected with the supporting assembly; the traction machine is arranged on the supporting assembly, and the distance between the traction machine and the first end of the lift car guide rail is smaller than the height of the supporting assembly.

Description

Technical Field

[0001] The present disclosure relates to the technical field of elevator installation, and in particular to a lifting device and an elevator. Background Art

[0002] For the lifting device of the machine roomless elevator, the traction machine usually has two arrangements: the first is to arrange the traction machine between the car guide rail and the adjacent hoistway wall; the second is to arrange the traction machine directly above the car guide rail.

[0003] For the first arrangement, since the traction machine is located between the car guide rail and the hoistway wall, in order to minimize the cross-sectional size of the hoistway, the axial size of the traction machine needs to be designed to be very small, so the radial size of the traction machine needs to be increased accordingly. If the radial size of the traction machine is too large, the operating space of the counterweight needs to be compressed, thereby limiting the height of the counterweight, and a counterweight block with a larger mass needs to be provided, resulting in an increase in the cost of the counterweight.

[0004] For the second arrangement, the traction machine and the machine bracket are both arranged above the car guide rail, resulting in a limited height of the car guide rail, and this arrangement will also cause the distance from the top of the car guide rail to the traction machine to be greater than the height of the traction machine bracket, reducing the operating stability of the traction machine and causing certain safety hazards. Summary of the invention

[0005] In view of the existing technical problems, the present disclosure provides a lifting device for a machine room-less elevator and an elevator, aiming to at least partially solve the above technical problems.

[0006] According to one aspect of the present disclosure, there is provided a lifting device for a machine room-less elevator, comprising: a car guide rail; a support assembly, wherein a first end of the car guide rail extends into and is connected to the support assembly; and a traction machine arranged on the support assembly, wherein a distance between the traction machine and the first end of the car guide rail is less than a height of the support assembly.

[0007] According to one embodiment of the present disclosure, the traction sheave of the traction machine is disposed above the car guide rail, and the axial direction of the traction sheave is perpendicular to the hoistway wall adjacent to the car guide rail.

[0008] According to one embodiment of the present disclosure, it further includes a car slidably matched with a car guide rail, wherein an orthogonal projection of the traction machine in the lifting direction of the car partially overlaps with an orthogonal projection of the car in the lifting direction of the car.

[0009] According to one embodiment of the present disclosure, further comprising a first vibration reducing member disposed on the car guide rail and located at a lower portion of the support assembly.

[0010] According to one embodiment of the present disclosure, it further includes a fixing member, which is preferably arranged below the first vibration-damping member, the fixing member being connected to the car guide rail and the adjacent counterweight guide rail and fixed to the side wall of the hoistway wall.

[0011] According to one embodiment of the present disclosure, the support assembly includes: a first bracket; and a second bracket installed below the first bracket; wherein the first end of the car guide rail extends into the second bracket and is connected to the first bracket.

[0012] According to one embodiment of the present disclosure, the first bracket and the second bracket have substantially the same height. The height refers to the vertical dimension of the mounting position of the bracket in the shaft. This allows the first bracket and the second bracket to use the same profile, thereby enabling a cost-effective lifting device.

[0013] According to one embodiment of the present disclosure, the first bracket includes two transverse beams, which are arranged in parallel and spaced apart in the horizontal direction and are substantially perpendicular to the side wall of the hoistway wall.

[0014] According to one embodiment of the present disclosure, the second bracket includes two longitudinal beams, which are arranged in parallel and spaced apart in the horizontal direction and are substantially perpendicular to the first bracket, preferably perpendicular to the transverse beam, and the first end of the car guide rail is located between the first brackets.

[0015] According to one embodiment of the present disclosure, the traction machine is installed on two transverse beams; and the two transverse beams are located on both sides of the traction sheave of the traction machine in a radial direction.

[0016] According to one embodiment of the present disclosure, a car guide rail bracket is arranged between the two transverse beams for connecting with the first end of the car guide rail.

[0017] According to one embodiment of the present disclosure, a counterweight assembly is also included, and the counterweight assembly includes: two counterweight guide rails arranged in parallel and spaced apart in the vertical direction, the first end of each counterweight guide rail is preferably arranged between the longitudinal beams; a counterweight pulley formed between the two counterweight guide rails; a counterweight support mechanism formed in a groove circumferentially arranged on the counterweight pulley; and a counterweight arranged below the counterweight pulley and slidably matched with the counterweight guide rails.

[0018] According to one embodiment of the present disclosure, the traction sheave of the traction machine is arranged just above the counterweight guide rail.

[0019] According to one embodiment of the present disclosure, further comprising a second vibration-damping member disposed on the counterweight rail and located at a lower portion of the support assembly.

[0020] According to one embodiment of the present disclosure, further comprising a third vibration reducing member disposed between the counterweight guide rail and the adjacent car guide rail and provided on the fixing member.

[0021] According to one embodiment of the present disclosure, the counterweight pulley is formed at an orthogonal projection position below an area formed between two longitudinal beams.

[0022] According to one embodiment of the present disclosure, one end of the counterweight support mechanism is connected to the support assembly, preferably to the second bracket.

[0023] According to another aspect of the present disclosure, a machine room-less elevator is provided, comprising the above-mentioned and below-mentioned lifting devices.

[0024] The traction machine is installed through the support assembly, and the support assembly and the traction machine are both formed above the car guide rail, so there is no need to perform a plane design on the traction machine, which is conducive to reducing the design difficulty and manufacturing cost of the traction machine. The ends on the same side of the car guide rail and the support assembly are formed in the support assembly to reduce the distance between the traction machine and the car guide rail, which is conducive to improving the stability of the elevator operation.

[0025] The elevator provided by the present disclosure has the advantages of a machine room-less lifting device for a machine room-less elevator, and can be relatively stable during the lifting and lowering movement of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other objects and advantages of the present disclosure will become apparent from the following description of the present disclosure with reference to the accompanying drawings and can help to fully understand the present disclosure.

[0027] Figure 1 The structural diagram of the lifting device according to the embodiment of the present disclosure is schematically shown;

[0028] Figure 2 yes Figure 1 a top view of the illustrated exemplary embodiment; and

[0029] Figure 3 The structural diagram of an elevator according to an embodiment of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly described below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the common meanings understood by those of ordinary skill in the art. The terms "first", "second" and similar terms used herein do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprising" and similar words mean that the elements or things appearing before the word include the elements or things described after the word and their equivalents, but do not exclude other elements or things.

[0032] In this document, unless otherwise specifically stated, directional terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are provided only for the convenience of describing the present disclosure and are not intended to indicate or imply that the referenced devices, elements or components must have a specific orientation, must be constructed or operated in a specific orientation. It should be understood that when the absolute positions of the objects described change, the relative positional relationships they represent may also change accordingly. Therefore, these directional terms should not be interpreted as limiting the present disclosure.

[0033] Figure 1 The structure diagram of the lifting device for the machine room-less elevator according to the embodiment of the present disclosure is schematically shown; Figure 2 yes Figure 1 a top view of the illustrated exemplary embodiment; Figure 3 The structural diagram of an elevator according to an embodiment of the present disclosure is schematically shown.

[0034] One aspect of the present disclosure schematically shows a lifting device for a machine room-less elevator, such as Figure 1 and Figure 2 As shown, it includes a car guide rail 5, a support assembly 2 and a traction machine 1. The first end of the car guide rail 5 extends into the support assembly 2 and is connected to the support assembly 2; the traction machine 1 is arranged on the support assembly 2, and the distance from the traction machine 1 to the first end of the car guide rail 5 is less than the height of the support assembly 2.

[0035] The first end of the car guide rail 5 is characterized by the end of the car guide rail 5 close to the traction machine 2; the height of the support assembly 2 is characterized by the vertical height from the upper surface to the lower surface of the support assembly 2. By adopting the above configuration, the distance between the traction sheave 13 and the car guide rail 5 can be effectively reduced, which is conducive to improving the stability of the elevator operation process.

[0036] Specifically, the distance between the traction machine 1 and the car guide rail 5 is less than 20 mm. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0037] For example, the distance between the traction machine 1 and the car guide rail 5 should be reasonably designed according to different elevators and different installation positions of the elevator. The distance between the traction machine 1 and the car guide rail 5 should be as small as possible without increasing the size and structural strength of the traction machine 1.

[0038] According to an embodiment of the present disclosure, the axial direction of the traction sheave 13 of the traction machine is perpendicular to the side wall of the hoistway wall 11 close to the car guide rail 5 .

[0039] According to an embodiment of the present disclosure, a car 6 is further included. The car 6 is slidably attached to the car guide rail 5, and the orthogonal projection of the traction machine 1 in the lifting direction of the car 6 partially overlaps with the orthogonal projection of the car 6 in the lifting direction of the car 6. The partial overlap is characterized in that the orthogonal projection of the traction machine 1 and the orthogonal projection of the car 6 do not completely contain each other.

[0040] Specifically, the distance from the vertical projection of the traction machine 1 to the car 6 in the lifting direction of the car 6 should be less than 50 mm (see Figure 2 This embodiment can form a larger area above the car 6, which is conducive to reducing the size of the hoistway for installing the car 6 without affecting the maintenance space on the top of the car.

[0041] According to one embodiment of the present disclosure, the lifting device further comprises a first vibration-damping member 3 disposed between the first end of the car guide rail 5 and the support assembly 2. In the above configuration, buffering the car guide rail 5 is beneficial to the distribution of the load applied to the car guide rail 5, thereby optimizing the counterweight distribution of the car guide rail 5 and reducing the use cost of the car guide rail 5.

[0042] Specifically, the first vibration-damping member 3 includes a vibration-damping block made of a rubber material. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0043] In addition, the first vibration damping member 3 and the car guide rail 5 can be directly installed or indirectly installed. The direct (immediate) installation is characterized by direct contact between the first damping member 3 and the car guide rail 5 to form an assembly; the indirect installation is characterized in that the first vibration damping member 3 is installed on a component assembled on the car guide rail 5 (such as the car guide rail bracket 10 and other structural components connected to the car guide rail 5).

[0044] According to one embodiment of the present disclosure, the support assembly 2 includes a first bracket 23 and a second bracket 24 installed below the first bracket 23 , wherein the first end of the car guide rail 5 extends into the second bracket 24 .

[0045] According to one embodiment of the present disclosure, the first bracket 23 includes two transverse beams 21 , which are arranged in parallel and spaced apart in the horizontal direction and are perpendicular to the hoistway wall.

[0046] According to one embodiment of the present disclosure, the second bracket 24 includes two longitudinal beams 22 , which are arranged in parallel and spaced apart in the horizontal direction and perpendicular to the transverse beams 21 , and the first end of the car guide rail 5 is located between the transverse beams 21 .

[0047] Specifically, a rectangular area formed in a middle portion between the two beams 21 is used as the above-mentioned installation space. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0048] For example, the support assembly 2 may also be formed with an annular or polygonal installation space, etc., which forms a hollow area in a plane.

[0049] In addition, the installation space can also use a non-hollow area. For example, the installation space adopts a bowl-shaped structure, and the surface of the installation space and the car guide rail 5 on the same side forms a groove, and the first end of the car guide rail 5 is fixed in the groove.

[0050] According to one embodiment of the present disclosure, the hoisting machine 1 is installed on the upper surfaces of the two transverse beams 21 .

[0051] According to one embodiment of the present disclosure, two transverse beams 21 are assembled to the hoisting machine 1. The two transverse beams 21 are formed on both radial sides of the traction sheave 13 of the hoisting machine 1. The above configuration is conducive to improving the stability of the assembly of the hoisting machine 1 and the support assembly 3, so that the load applied to the support assembly 3 is relatively uniform.

[0052] Specifically, the two transverse beams 21 are symmetrically arranged in the axial direction around the center of the traction sheave 13. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0053] For example, on the basis of ensuring the stable installation of the traction machine 1, the two transverse beams 21 can also form an asymmetric assembly form with the traction machine 1 through other components (such as hoops, threaded fittings or counterweights).

[0054] According to one embodiment of the present disclosure, a car guide rail bracket 10 for connecting with a first end of the car guide rail 5 is arranged between the two transverse beams 21 .

[0055] According to one embodiment of the present disclosure, the lifting device further includes: a counterweight assembly 7, which includes two counterweight guide rails 72 arranged in parallel and spaced apart in the vertical direction; a counterweight pulley 73 arranged between the two counterweight guide rails 72; a counterweight support mechanism 71, which is circumferentially arranged in a groove on the counterweight pulley 73; and a counterweight 74, which is arranged below the counterweight pulley 73 and slidably matches the counterweight guide rails 72. The first end of each counterweight guide rail 72 is arranged between the two longitudinal beams 22.

[0056] Specifically, the two counterweight guide rails 72 are parallel to the car guide rails 5 , and the two counterweight guide rails 72 are both arranged below the two longitudinal beams 22 .

[0057] According to one embodiment of the present disclosure, a second vibration-damping member 8 is further included, which is arranged between an upper portion of the counterweight rail 72 and a lower portion of the support assembly 3 .

[0058] According to one embodiment of the present disclosure, a third vibration-damping member 9 is further included, which is disposed between the counterweight guide rail 72 and the adjacent car guide rail 5. The arrangement of the second vibration-damping member 8 and the third vibration-damping member 9 is conducive to isolating the vibration generated during the operation of the elevator from the hoistway wall, which can effectively improve the comfort of the elevator operation.

[0059] Specifically, the second vibration-damping member 8 and the third vibration-damping member 9 include vibration-damping blocks made of a rubber material. It should be understood that the embodiments of the present disclosure are not limited thereto.

[0060] According to one embodiment of the present disclosure, the counterweight pulley 73 is formed at an orthogonal projection position below the area formed between the two longitudinal beams 22. In this configuration, when the counterweight pulley 73 is located at the highest position of the hoistway, the space between the two longitudinal beams 22 is accessible, which is conducive to reducing the influence of the traction machine 1 and the counterweight space, and the counterweight 74 can be made of several counterweight blocks, which is conducive to reducing the cost of the counterweight.

[0061] According to one embodiment of the present disclosure, one end of the counterweight support mechanism 71 is connected to the support assembly 2 .

[0062] According to another aspect of the present disclosure, there is also provided a machine room-less elevator, such as Figure 3 As shown, it includes a lifting device as described above and below.

[0063] Specifically, the lifting device for the machine room-less elevator is located inside the hoistway wall 11 .

[0064] Although some embodiments according to the general technical concepts of the present disclosure have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general technical concepts of the present disclosure, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A lifting device for a machine room-less elevator, the lifting device comprising: Car guide rail (5); a support assembly (2), wherein the first end of the car guide rail (5) extends into the support assembly (2) and is connected to the support assembly (2); and A traction machine (1) is arranged on the support assembly (2), wherein the distance between the traction machine (1) and the first end of the car guide rail (5) is smaller than the height of the support assembly (2).

2. The lifting device according to claim 1, wherein: The axial direction of the traction wheel (13) of the traction machine (1) is perpendicular to the hoistway wall adjacent to the car guide rail (5).

3. The lifting device according to claim 1, further comprising: A car (6) slidably matched with the car guide rail (5), wherein the orthogonal projection of the traction machine (1) in the lifting direction of the car (6) partially overlaps with the orthogonal projection of the car (6) in the lifting direction of the car (6).

4. The lifting device according to any one of the preceding claims, further comprising: A first vibration-damping member (3) is arranged on the car guide rail (5) and located at a lower portion of the support assembly (2).

5. The lifting device according to any one of the preceding claims, further comprising: A fixing member (4) is preferably arranged below the first vibration-damping member (3), connected to the car guide rail (5) and the adjacent counterweight guide rail (72), and fixed to the side wall of the hoistway wall (11).

6. A lifting device according to any one of the preceding claims, wherein: The support assembly (2) comprises: a first bracket (23); and a second bracket (24) mounted below the first bracket (23), The first end of the car guide rail (5) extends into the first bracket (23), wherein the first bracket (23) and the second bracket (24) preferably have substantially the same height.

7. The lifting device according to claim 6, wherein: The first support (23) comprises two transverse beams (21), which are arranged in parallel and spaced apart in the horizontal direction and are substantially perpendicular to the side walls of the hoistway wall.

8. The lifting device according to claim 6 or 7, wherein: The second bracket (24) comprises two longitudinal beams (22), which are arranged in parallel and spaced apart in the horizontal direction and are substantially perpendicular to the first bracket (23), preferably perpendicular to the transverse beam (21), and the first end of the car guide rail (5) is located between the first brackets (23) and is preferably attached to the first bracket (23).

9. The lifting device according to claim 7 or 8, wherein The traction machine (1) is mounted on the two transverse beams (21); and The two transverse beams (21) are located on both radial sides of the traction wheel (13) of the traction machine (1).

10. The lifting device according to claims 7 to 9, wherein: A car guide rail bracket (10) is arranged between the two transverse beams (21) and is used to be connected to the first end of the car guide rail (5).

11. The lifting device according to any one of the preceding claims, further comprising a counterweight assembly (7), the counterweight assembly (7) comprising: Two counterweight guide rails (72) arranged in parallel and spaced apart in the vertical direction, the first end of each counterweight guide rail (71) preferably being arranged between the longitudinal beams (22), preferably attached to the first bracket (23), preferably, attached to the first bracket (23) via a second vibration-damping member (8); A counterweight pulley (73) formed between the two counterweight guide rails (72); A counterweight support mechanism (71) formed in a groove circumferentially disposed on a counterweight pulley (73); and A counterweight (74) is arranged below the counterweight pulley (73) and is slidably matched with the counterweight guide rail (72).

12. The lifting device according to claim 11, wherein: The traction wheel of the traction machine (1) is arranged directly above the counterweight guide rail (72).

13. The lifting device according to claims 11 and 12, further comprising: A second vibration damping member (8), which is arranged on the counterweight rail (72) and located at a lower portion of the support assembly, is preferably attached to the first bracket (23).

14. The lifting device according to any one of claims 11 to 13, further comprising: a third vibration-damping member (9) arranged between the counterweight guide rail (72) and an adjacent car guide rail (5) and provided on the fixed member (4), and / or wherein the counterweight pulley (73) is formed at an orthogonal projection position below an area formed between the two longitudinal beams (22), and / or wherein, One end of the counterweight support mechanism (71) is connected to the support assembly (2), preferably to the second bracket (24).

15. A machine room-less elevator, comprising the machine room-less lifting device according to any one of claims 1 to 14.

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