Elevator traction system
By setting the first car reverse rope wheel and the second car reverse rope wheel in the elevator traction system, and bypassing the traction rope around multiple wheels and reverse rope wheels, the problem of not meeting the size requirements of the small computer room elevator is solved, and the smooth operation and effective hanging of the elevator are achieved.
Patent Information
- Application Number
- CN202421108377.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing elevator traction system does not meet the size requirements in small computer room elevators, especially vertical elevators with 4:1 traction. Common layout methods are not suitable for smaller-sized shafts.
An elevator traction system is designed, in which the first car reverse rope wheel and the second car reverse rope wheel are arranged in a manner that is staggered up and down. The traction rope bypasses multiple wheels and the reverse rope wheel in sequence, and the rope between the traction wheel and the counter-heavy wheel is arranged in a vertical direction to meet the dimensions of the elevator in the small computer room.
By staggering the reverse rope wheels on the upper and lower sides, the overlapping arrangement problems caused by side-by-side settings are avoided, the size requirements of the small computer room elevator are met, and the smooth operation and effective suspension of the elevator are ensured.
Smart Images
Figure CN222540193U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevators, and in particular to an elevator traction system. Background Art
[0002] For 4:1 traction vertical elevators, a common arrangement is that the car wheels on the car and the counterweight wheels on the counterweight are arranged in a straight line. However, due to the size of the car wheels and the counterweight wheels, this arrangement is only applicable to larger hoistways. Utility Model Content
[0003] Based on this, it is necessary to provide an elevator traction system that can meet the size requirements of small machine room elevators.
[0004] An elevator traction system, comprising:
[0005] Car;
[0006] A counterweight, the counterweight being arranged on one side of the car;
[0007] A traction machine, the traction machine is used to be fixed on the upper part of the hoistway, the traction machine is arranged between the car and the counterweight, and the traction machine is provided with a traction sheave;
[0008] A first car top wheel, a second car top wheel, a first car return rope wheel and a second car return rope wheel, wherein the first car top wheel and the second car top wheel are arranged side by side on the top of the car, the first car return rope wheel and the second car return rope wheel are used to be installed on the upper part of the hoistway, the first car return rope wheel and the second car return rope wheel are arranged between the first car top wheel and the second car top wheel, and the first car return rope wheel and the second car return rope wheel are staggered up and down;
[0009] a first counterweight wheel, a second counterweight wheel and a counterweight return rope wheel, wherein the first counterweight wheel and the second counterweight wheel are arranged on the top of the counterweight, the counterweight return rope wheel is used to be installed on the upper part of the hoistway, and the counterweight return rope wheel is arranged between the first counterweight wheel and the second counterweight wheel; and,
[0010] A traction rope is passed through the first car top wheel, the first car return rope wheel, the second car return rope wheel, the second car return rope wheel, the traction wheel, the first counterweight wheel, the counterweight return rope wheel and the second counterweight wheel in sequence.
[0011] In one embodiment, the second car return pulley is higher than the first car return pulley; or, the second car return pulley is lower than the first car return pulley.
[0012] In one embodiment, the traction ropes between the first car top wheel and the first car return rope wheel, between the second car top wheel and the second car return rope wheel, and between the traction wheel and the second car top wheel are all arranged in a vertical direction, and the traction ropes between the traction wheel and the first counterweight wheel, between the first counterweight wheel and the counterweight return rope wheel, and between the counterweight return rope wheel and the second counterweight wheel are all arranged in a vertical direction.
[0013] In one embodiment, the center of the first car top wheel, the center of the first car return rope pulley, the center of the second car return rope pulley, the center of the second car top wheel and the center of the traction wheel are located on the same straight line.
[0014] In one of the embodiments, the center of the counterweight counter rope pulley and the center of the traction wheel are located on the same straight line.
[0015] In one embodiment, the counterweight return pulley is arranged along the depth direction of the car, the first counterweight pulley and the second counterweight pulley are arranged between the counterweight return pulley and the traction wheel, and the first counterweight pulley and the second counterweight pulley are arranged at intervals along the depth direction of the car.
[0016] In one embodiment, the first counterweight wheel and the second counterweight wheel are arranged in parallel, and the first counterweight wheel and the second counterweight wheel are arranged obliquely relative to the counterweight counter rope wheel.
[0017] In one embodiment, the counterweight is arranged on one side of the car along the depth of the car, and the first car top wheel, the first car return rope wheel, the second car return rope wheel and the second car top wheel are arranged at intervals along the width direction of the car.
[0018] In one of the embodiments, a counterweight rope head is provided at one end of the traction rope, and a car rope head is provided at the other end of the traction rope, and both the counterweight rope head and the car rope head are used to be fixed to the upper part of the hoistway.
[0019] In one of the embodiments, the wrap angle of the traction rope on the traction wheel is 180°.
[0020] In the elevator traction system, since the first car return pulley and the second car return pulley are arranged in an up-down staggered manner, when the size of the car is small, it can avoid the first car return pulley and the second car return pulley being arranged side by side and overlapping. Such an arrangement can meet the size requirements of small machine room elevators. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] FIG. 1 is a schematic structural diagram of an elevator traction system according to an embodiment of the present application.
[0022] FIG. 2 is a simplified structural diagram of the elevator traction system shown in FIG. 1 .
[0023] FIG. 3 is a top view of each wheel in the elevator traction system shown in FIG. 1 .
[0024] Description of Figure Numbers:
[0025] 10. Car; 20. Counterweight; 30. Traction machine; 31. Traction sheave; 40. First car top wheel; 41. Second car top wheel; 42. First car return rope sheave; 43. Second car return rope sheave; 50. First counterweight sheave; 51. Second counterweight sheave; 52. Counterweight return rope sheave; 60. Traction rope; 70. Car rope end; 80. Counterweight rope end. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0027] An elevator traction system provided by an embodiment of the present application is arranged in a hoistway, and the suspension ratio of the elevator traction system is 4:1.
[0028] In one embodiment, referring to Figures 1 and 2, an elevator traction system includes a car 10, a counterweight 20, and a traction machine 30. The counterweight 20 is disposed on one side of the car 10. The traction machine 30 is disposed between the car 10 and the counterweight 20, and the traction machine 30 is provided with a traction sheave 31.
[0029] Further, referring to Fig. 1 and Fig. 2, the elevator traction system further includes a first car top wheel 40, a second car top wheel 41, a first car return rope wheel 42, a second car return rope wheel 43, a first counterweight wheel 50, a second counterweight wheel 51, a counterweight return rope wheel 52 and a traction rope 60. The first car top wheel 40 and the second car top wheel 41 are arranged side by side on the top of the car 10. The first car return rope wheel 42 and the second car return rope wheel 43 are arranged between the first car top wheel 40 and the second car top wheel 41, and the first car return rope wheel 42 and the second car return rope wheel 43 are arranged staggered up and down. The first counterweight wheel 50 and the second counterweight wheel 51 are arranged on the top of the counterweight 20, and the counterweight return rope wheel 52 is arranged between the first counterweight wheel 50 and the second counterweight wheel 51. The traction rope 60 passes through the first car top wheel 40, the first car return rope wheel 42, the second car return rope wheel 43, the second car return rope wheel 43, the traction wheel 31, the first counterweight wheel 50, the counterweight return rope wheel 52 and the second counterweight wheel 51 in sequence.
[0030] Furthermore, the first car return rope pulley 42, the second car return rope pulley 43, the traction machine 30 and the counterweight return rope pulley 52 are all arranged at the upper part of the hoistway. Specifically, a machine room is arranged at the upper part of the hoistway, and a machine frame beam is arranged in the machine room, and the first car return rope pulley 42, the second car return rope pulley 43, the traction machine 30, the counterweight return rope pulley 52 and both ends of the traction rope 60 are all installed on the machine frame beam.
[0031] In the elevator traction system, since the first car return pulley 42 and the second car return pulley 43 are arranged in an up-down staggered manner, when the size of the car 10 is small, it can avoid the first car return pulley 42 and the second car return pulley 43 being arranged side by side and overlapping. Such an arrangement can meet the size requirements of a small machine room elevator.
[0032] 1 and 2 , the second car return pulley 43 is higher than the first car return pulley 42. It can be understood that the second car return pulley 43 is arranged above the first car return pulley 42 on the side close to the traction machine 30.
[0033] Of course, in other embodiments, the second car return pulley 43 may also be lower than the first car return pulley 42. It is understandable that the second car return pulley 43 is arranged below the first car return pulley 42 on the side close to the traction machine 30.
[0034] In one embodiment, referring to FIG. 2 , the traction rope 60 on the side of the car 10 is basically arranged perpendicular to the car top. Specifically, the traction rope 60 between the first car top wheel 40 and the first car return rope wheel 42, between the second car top wheel 41 and the second car return rope wheel 43, and between the traction wheel 31 and the second car top wheel 41 are all arranged in the vertical direction. In this way, the traction rope 60 has no weight in the horizontal direction. During the operation of the elevator, the traction rope 60 at the above-mentioned parts can always maintain a vertical suspension state, so that the force condition of the traction rope 60 is better, ensuring the smooth operation of the car 10.
[0035] In addition, referring to FIG. 2 , the traction rope 60 between the first car top wheel 40 and the crane beam is also arranged in the vertical direction.
[0036] Specifically, referring to Fig. 3, the side of the first car top wheel 40 close to the first car return rope wheel 42 coincides with the projection of the side of the first car return rope wheel 42 close to the first car top wheel 40 on the car top, the side of the second car return rope wheel 43 close to the second car top wheel 41 coincides with the projection of the side of the second car top wheel 41 close to the second car return rope wheel 43 on the car top, and the side of the traction wheel 31 close to the second car top wheel 41 coincides with the projection of the side of the second car top wheel 41 close to the traction wheel 31 on the car top. After the first car top wheel 40, the first car return rope wheel 42, the second car return rope wheel 43, the second car top wheel 41 and the traction wheel 31 are arranged in the above manner, the traction ropes 60 between the first car top wheel 40 and the first car return rope wheel 42, between the second car top wheel 41 and the second car return rope wheel 43, and between the traction wheel 31 and the second car top wheel 41 are all arranged in the vertical direction.
[0037] In one embodiment, referring to FIG. 2 , the traction rope 60 on the side of the counterweight 20 is substantially perpendicular to the top of the counterweight 20. Specifically, the traction rope 60 between the traction wheel 31 and the first counterweight wheel 50, between the first counterweight wheel 50 and the counterweight return rope wheel 52, and between the counterweight return rope wheel 52 and the second counterweight wheel 51 are all arranged in a vertical direction. With such an arrangement, the traction rope 60 has no weight in the horizontal direction. During the operation of the elevator, the traction rope 60 at the above-mentioned parts can always maintain a vertical suspension state, so that the force condition of the traction rope 60 is better, ensuring the smooth operation of the car 10.
[0038] In addition, referring to FIG. 2 , the traction rope 60 between the second counterweight wheel 51 and the frame beam is also arranged in the vertical direction.
[0039] Specifically, referring to Fig. 3, the side of the traction wheel 31 close to the first counterweight wheel 50 coincides with the projection of the side of the first counterweight wheel 50 close to the traction wheel 31 on the top of the counterweight 20, the side of the first counterweight wheel 50 close to the counterweight return rope wheel 52 coincides with the projection of the side of the counterweight return rope wheel 52 close to the first counterweight wheel 50 on the top of the counterweight 20, and the side of the counterweight return rope wheel 52 close to the second counterweight wheel 51 coincides with the projection of the side of the second counterweight wheel 51 close to the counterweight return rope wheel 52 on the top of the counterweight 20. After the traction wheel 31, the first counterweight wheel 50, the counterweight return rope wheel 52 and the second counterweight wheel 51 are arranged in the above manner, the traction ropes 60 between the traction wheel 31 and the first counterweight wheel 50, between the first counterweight wheel 50 and the counterweight return rope wheel 52, and between the counterweight return rope wheel 52 and the second counterweight wheel 51 are all arranged in the vertical direction.
[0040] In one embodiment, referring to Fig. 1, the counterweight 20 is arranged on one side of the car 10 along the depth of the car 10, and S1 is used to represent the depth direction of the car 10. The first car top wheel 40, the first car return rope wheel 42, the second car return rope wheel 43 and the second car top wheel 41 are arranged at intervals along the width direction of the car 10, and S2 is used to represent the width direction of the car 10. In this way, the elevator is a side-mounted counterweight type.
[0041] Of course, in other embodiments, the elevator may also be a counterweight rear type. The counterweight 20 is arranged on one side of the car 10 along the width direction of the car 10, and the first car top wheel 40, the first car return rope wheel 42, the second car return rope wheel 43 and the second car top wheel 41 are arranged at intervals along the depth direction of the car 10.
[0042] In one embodiment, referring to Fig. 3, the center of the first car top wheel 40, the center of the first car return rope wheel 42, the center of the second car return rope wheel 43, the center of the second car top wheel 41 and the center of the traction wheel 31 are located on the same straight line. In this way, the traction rope 60 is conveniently wound on the side of the car 10.
[0043] Further, referring to FIG3 , the center of the counterweight return rope pulley 52 and the center of the traction wheel 31 are located on the same straight line. It can be understood that the center of the first car top wheel 40, the center of the first car return rope pulley 42, the center of the second car return rope pulley 43, the center of the second car top wheel 41, the center of the traction wheel 31 and the center of the counterweight return rope pulley 52 are all located on the same straight line. This arrangement facilitates the winding of the traction rope 60 on the counterweight 20 side.
[0044] In one embodiment, referring to Fig. 1 and Fig. 3, the counterweight return pulley 52 is arranged along the depth direction of the car 10. It can be understood that the end surface of the counterweight return pulley 52 is parallel to the side of the car 10 along the depth direction thereof. The first counterweight pulley 50 and the second counterweight pulley 51 are arranged between the counterweight return pulley 52 and the traction sheave 31, and the first counterweight pulley 50 and the second counterweight pulley 51 are arranged at intervals along the depth direction of the car 10.
[0045] Further, referring to Fig. 3, the first counterweight wheel 50 and the second counterweight wheel 51 are arranged in parallel, and the first counterweight wheel 50 and the second counterweight wheel 51 are arranged at an angle relative to the counterweight return rope wheel 52. With such an arrangement, the elevator traction system can meet the 4:1 suspension arrangement requirement even when the shaft depth is small.
[0046] In one embodiment, referring to FIG. 1 , a counterweight rope head 80 is provided at one end of the traction rope 60, and a car rope head 70 is provided at the other end of the traction rope 60. The counterweight rope head 80 and the car rope head 70 are both used to be fixed in the machine room. Optionally, the counterweight rope head 80 and the car rope head 70 are used to be fixed on the machine frame beam of the machine room. In this way, by providing the counterweight rope head 80 and the car rope head 70, it is convenient to install the traction rope 60 on the machine frame beam.
[0047] In one embodiment, the wrap angle of the traction rope 60 on the traction wheel 31 is 180°. It can be understood that in the case of single winding, the maximum wrap angle that the traction rope 60 can achieve provides a better traction condition.
[0048] The elevator traction system of this embodiment can make the arrangement of the first car top wheel 40, the second car top wheel 41, the first car return rope pulley 42, the second car return rope pulley 43, the first counterweight pulley 50, the second counterweight pulley 51 and the counterweight return rope pulley 52 more compact. At the same time, the center of the counterweight 20 coincides with the hanging center of the car 10, and the counterweight 20 completely falls within the depth dimension range of the car 10 in the depth direction, which is more suitable for the use conditions of small machine room elevators.
[0049] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0050] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0051] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0052] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0053] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.
[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0055] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.
Claims
1. An elevator traction system, characterized in that: include: Car; A counterweight, the counterweight being arranged on one side of the car; A traction machine, the traction machine is used to be fixed on the upper part of the hoistway, the traction machine is arranged between the car and the counterweight, and the traction machine is provided with a traction sheave; A first car top wheel, a second car top wheel, a first car return rope wheel and a second car return rope wheel, wherein the first car top wheel and the second car top wheel are arranged side by side on the top of the car, the first car return rope wheel and the second car return rope wheel are used to be installed on the upper part of the hoistway, the first car return rope wheel and the second car return rope wheel are arranged between the first car top wheel and the second car top wheel, and the first car return rope wheel and the second car return rope wheel are staggered up and down; A first counterweight wheel, a second counterweight wheel and a counterweight anti-ropes wheel, wherein the first counterweight wheel and the second counterweight wheel are arranged on the top of the counterweight, the counterweight anti-ropes wheel is used to be installed on the upper part of the hoistway, and the counterweight anti-ropes wheel is arranged between the first counterweight wheel and the second counterweight wheel; as well as, A traction rope is passed through the first car top wheel, the first car return rope wheel, the second car return rope wheel, the traction wheel, the first counterweight wheel, the counterweight return rope wheel and the second counterweight wheel in sequence.
2. The elevator traction system according to claim 1, characterized in that: The first car return pulley is higher than the second car return pulley; or, the first car return pulley is lower than the second car return pulley.
3. The elevator traction system according to claim 1, characterized in that: The traction ropes between the first car top wheel and the first car return rope wheel, between the second car top wheel and the second car return rope wheel, and between the traction wheel and the second car top wheel are all arranged in a vertical direction, and the traction ropes between the traction wheel and the first counterweight wheel, between the first counterweight wheel and the counterweight return rope wheel, and between the counterweight return rope wheel and the second counterweight wheel are all arranged in a vertical direction.
4. The elevator traction system according to claim 1, characterized in that: The center of the first car top wheel, the center of the first car return rope pulley, the center of the second car return rope pulley, the center of the second car top wheel and the center of the traction wheel are located on the same straight line.
5. The elevator traction system according to claim 1, characterized in that: The center of the counterweight counter rope pulley and the center of the traction wheel are located on the same straight line.
6. The elevator traction system according to claim 1, characterized in that: The counterweight return pulley is arranged along the depth direction of the car, the first counterweight pulley and the second counterweight pulley are arranged between the counterweight return pulley and the traction wheel, and the first counterweight pulley and the second counterweight pulley are arranged at intervals along the depth direction of the car.
7. The elevator traction system according to claim 1, characterized in that: The first counterweight wheel and the second counterweight wheel are arranged in parallel, and the first counterweight wheel and the second counterweight wheel are arranged obliquely relative to the counterweight anti-rope wheel.
8. The elevator traction system according to any one of claims 1 to 7, characterized in that: The counterweight is arranged on one side of the car along the depth of the car, and the first car top wheel, the first car return rope wheel, the second car return rope wheel and the second car top wheel are arranged at intervals along the width direction of the car.
9. The elevator traction system according to any one of claims 1 to 7, characterized in that: A counterweight rope head is provided at one end of the traction rope, and a car rope head is provided at the other end of the traction rope. Both the counterweight rope head and the car rope head are used to be fixed on the upper part of the hoistway.
10. The elevator traction system according to any one of claims 1 to 7, characterized in that: The wrap angle of the traction rope on the traction wheel is 180°.