This application claims priority to Chinese Patent Application No. 202011230116.6, filed Nov. 6, 2020, and all the benefits accruing therefrom under 35 U.S.C. ยง 119, the contents of which in its entirety are herein incorporated by reference
The present application relates to the field of elevator structure. More specifically, the present application relates to a governor assembly. The present application also relates to an elevator including the above governor.
A governor is usually arranged in an elevator, and includes a plurality of pulleys associated with a steel wire rope. According to elevator design standards, the diameter of the pulley used for the steel wire rope of the governor should be at least 30 times the nominal diameter of the rope. A typical steel wire rope is formed by twisting a multiple of strands around a core, and there are undulations over the outer surface of the steel wire rope.
An object of one aspect of the present application is to provide a governor assembly, which aims to provide a new structural solution for the governor. An object of another aspect of the present application is to provide an elevator including the above-mentioned governor assembly.
The objects of the present application are achieved through the following technical solutions.
A governor assembly, comprising:
a body equipping with a trigger wheel and a guide wheel, and the trigger wheel and the guide wheel being arranged to be rotatable relative to the body;
a guide member extending around the trigger wheel and the guide wheel in sequence; and
wherein the cross section of the guide member has a first dimension in the direction facing the trigger wheel or the guide wheel, and has a second dimension in the radial direction of the trigger wheel or the guide wheel, and wherein the first dimension is larger than the second dimension.
In the governor assembly described above, optionally, the guide member includes a plurality of bearing members and a covering layer wrapping each of the bearing members.
In the governor assembly described above, optionally, the covering layer is capable of transmitting the force from the trigger wheel and the guide wheel to the bearing members, such that the movement of the body relative to the bearing members is stopped.
In the governor assembly described above, optionally, the bearing members are made of one or more of the following materials: metal, carbon fiber.
In the governor assembly described above, optionally, the bearing members are arranged to be separated from each other, and the covering layer is provided between the adjacent bearing members.
In the governor assembly described above, optionally, the covering layer defines a first surface in contact with the trigger wheel and a second surface in contact with the guide wheel.
In the governor assembly described above, optionally, the first surface and the second surface are configured to be symmetrical with respect to a first axis.
In the governor assembly described above, optionally, the bearing members are arranged along the first axis.
In the governor assembly described above, optionally, the first surface and the second surface are configured to be parallel to each other.
In the governor assembly described above, optionally, the distances from the first surface and the second surface to the first axis are configured to vary along the first axis.
In the governor assembly described above, optionally, the distance between the first surface and the second surface is configured to be larger than or equal to 3 mm and smaller than 6 mm.
In the governor assembly described above, optionally, one end of the guide member is attached to the top of an elevator hoistway, the other end of the guide member is attached to the bottom of the elevator hoistway, and the body is attached to an elevator car.
In the governor assembly described above, optionally, the direction in which the guide member surrounds the trigger wheel is opposite to the direction in which the guide member surrounds the guide wheel.
In the governor assembly, optionally, the trigger wheel and the guide wheel are configured to have a diameter larger than or equal to 90 mm and smaller than 180 mm.
An elevator comprising the governor assembly described above.
The present application will be described below in further detail with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments, and thus should not be construed as limiting the scope of the present application. In addition, unless specifically stated, the drawings are only intended to conceptually represent the composition or construction of the described objects and may contain exaggerated illustration. The drawings are not necessarily drawn to scale.
Hereinafter, preferred embodiments of the present application will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary, and should not be construed as limiting the scope of protection of the present application.
Firstly, it should be noted that the orientational terms such as top, bottom, upward, and downward mentioned herein are defined with respect to the directions in various drawings. These orientations are relative concepts, and therefore will vary with the position and state thereof. Accordingly, these or other orientational terms should not be interpreted as restrictive.
In addition, it should also be noted that for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the drawings, it is still possible to combine these technical features (or their equivalents) so as to obtain other embodiments that are not directly mentioned herein.
It should be noted that in different drawings, identical or substantially identical components are denoted by identical reference signs.
The drive device 111 is provided at the top of the hoistway 117 and is configured to adjust the positions of the car 103 and the counterweight 105. The drive device 111 can be any suitable power supply device, including but not limited to an electric motor, etc. The drive device 111 may be powered by a power line or power grid (not shown).
The position detection system 113 can be installed to be fixed relative to the hoistway 117, and is preferably arranged at the top of the hoistway 117; for example, it can be installed on a bracket or guide rail. The position detection system 113 is also configured to sense the position of the car 103 within the hoistway 117, so as to provide a position signal related to the position of the car 103. In another embodiment, the position detection system 113 may also be arranged on other parts, such as on a moving part. The position detection system 113 may include an encoder, a sensor, or other suitable sensing systems, and the sensing method includes but not limited to speed sensing, relative position sensing, absolute position sensing, digital encoding sensing, and so on.
The controller 115 may be arranged in an independent control room 121, or may also be arranged at other suitable positions. In an embodiment, the controller 115 may also be arranged at a remote location or in the cloud. The controller 115 is configured to control the operation of the entire elevator system 101. For example, the controller 115 can adjust the operation of the drive device 111 so as to make the car 103 and the counterweight 105 start, accelerate, decelerate, stop, etc. The controller 115 may perform control operations according to the signal from the position detection system 113. In an embodiment, the controller 115 is configured to stop the car 103 at one of the each floor 125 and perform acceleration or deceleration movement between the floors 125.
A guide member 200 is also schematically shown in
Furthermore, in an embodiment, the guide member 200 is configured to have a dimension larger than 3 mm and smaller than 6 mm in the radial direction of the trigger wheel 110 or the guide wheel 120. As used herein, the dimension of the guide member in the radial direction refers to the dimension of the guide member 200 measured in the radial direction of the trigger wheel 110 or the guide wheel 120 from the surface of the trigger wheel 110 or the guide wheel 120. In order to meet the dimensional relationship of at least 30 times requirement for the elevator design specification, the trigger wheel 110 or the guide wheel 120 may have a diameter D larger than or equal to 90 mm and smaller than 180 mm. In an embodiment, the diameters of the trigger wheel 110 and the guide wheel 120 may be equal to each other. In another embodiment, the diameters of the trigger wheel 110 and the guide wheel 120 may be not equal to each other.
By adopting the dimension of the guide member and the dimensions of the trigger wheel 110 and the guide wheel 120 in the present application, the dimension of the space occupied by the trigger wheel 110 and the guide wheel 120 can be effectively reduced, thereby providing more space for installaing or arranging other parts. In addition, the spacing between the trigger wheel 110 and the guide wheel 120 required to reduce the risk of bending fatigue of the guide member can also be reduced. The above change of dimensions can reduce the overall dimension of the governor assembly 10, thereby improving the space utilization. In addition, the reduced dimensions of the trigger wheel 110 and the guide wheel 120 also reduces the manufacturing cost.
In an embodiment, as the car 117 moves, the trigger wheel 110 and the guide wheel 120 rotate, so that the body 100 of the governor assembly 10 moves relative to the guide member 200. The guide member 200 may be configured to be fixed relative to the hoistway 117, while the body 100 is movable relative to the hoistway 117.
In the embodiment shown in
In the embodiment shown in
In the embodiment shown in
The covering layer may be made of non-metallic materials and may be insulated. The bearing members may be made of metal or carbon fiber material. In an embodiment, the bearing members may be made of steel. In an embodiment, the covering layer may include rubber or plastic.
In an embodiment, the second dimension of the guide member may be configured to be 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm or 6 mm, for example.
The guide member 200 of the present application can provide greater friction than a conventional bearing member rope. In an embodiment, the guide member of the present application can provide a friction force 2-3 times that of the conventional bearing member rope. Therefore, regular functions of the governor assembly can be ensured.
When the guide member 200 is assembled with the trigger wheel 110 and the guide wheel 120, the surface on which the lengthwise dimension L is located is oriented toward the peripheral surfaces of the trigger wheel 110 and the guide wheel 120. That is, the lower surface of the guide member 200 in
By adopting the guide member 200 with a smooth surface, noises generated during operation will be effectively reduced.
The governor assembly and the elevator of the present application have the advantages of being simple, reliable, easy to implement, and convenient to use, etc. The dimension of the governor assembly is reduced and the operating noise is reduced.
This description discloses the present application with reference to the accompanying drawings, and also enables those skilled in the art to implement the present application, including manufacturing and using any device or system, selecting suitable materials, and using any combined method. The scope of the present application is defined by the claimed technical solutions, and contains other examples that can be conceived by those skilled in the art. Such other examples should be considered as falling within the scope of protection determined by the technical solutions claimed in the present application, as long as such other examples include structural elements that are not different from the literal language of the claimed technical solutions, or such other examples include equivalent structural elements that are not substantively different from the literal language of the claimed technical solutions.
Number | Date | Country | Kind |
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202011230116.6 | Nov 2020 | CN | national |