Elevator roller pressure adjustment assembly and adjustment method, elevator guide shoe and elevator system

Abstract

The present disclosure relates to an elevator roller pressure adjusting assembly and adjusting method, an elevator guide shoe and an elevator system. The elevator roller pressure adjusting assembly comprises a contact piece fixed opposite at least one roller arranged on an elevator car or a counterweight, the roller being in rolling contact with an elevator guide rail and defining a running track of the elevator car or the counterweight along the guide rail during normal operation of the elevator system; a matching piece arranged at a preset position on the elevator guide rail and outside the running track without being in contact with the roller, and configured to be in pressing contact with the contact piece to apply an action force to the contact piece when the elevator car or the counterweight is running to stop near the preset position under a preset state of the elevator system, the action force causing the contact pressure between the roller and the elevator guide rail to be at least reduced. The present disclosure can effectively avoid or alleviate the problem of deformation or damage of the roller caused by bearing the contact pressure with the elevator guide rail.

Description

Technical Field

[0001] This disclosure relates to the field of elevator technology, and more specifically, to elevator roller pressure adjustment components and adjustment methods, elevator guide shoes, and elevator systems. Background Technology

[0002] Various types of elevator equipment have been widely installed in many places such as high-rise buildings, train stations, airports, private clubs, and family villas, greatly facilitating people's daily work, life, and travel. Many elevator systems use rolling guide shoes to support the weight of the elevator car. The rolling friction between the rollers in the guide shoes and the elevator tracks allows the elevator car to move along the tracks.

[0003] The configuration and usage of these rollers have an impact on the operational performance of the elevator system. For example, elevator cars are typically equipped with rollers that are wear-resistant and low-noise. This can be achieved by coating the roller body with an elastomer made of materials such as rubber or polytetrafluoroethylene (PTFE), thereby reducing frictional resistance and wear between the rollers and the elevator guide rails, reducing operating noise, and preventing the elevator car from shaking during operation. However, this application has found through research that further optimization and improvement can be made to the elevator car rollers and rolling guide shoes in existing elevator systems, especially in applications where the top floor height and / or pit depth of the elevator shaft are relatively small, such as home elevators installed in private residences like villas. Summary of the Invention

[0004] In view of this, the present disclosure provides an elevator roller pressure adjustment assembly and adjustment method, an elevator guide shoe and an elevator system, to solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art, or to provide an alternative solution to the prior art.

[0005] According to one aspect of this disclosure, an elevator roller pressure adjustment assembly is first provided, comprising:

[0006] A contact element, fixed relative to at least one roller disposed on the elevator car or counterweight, wherein, during normal operation of the elevator system, the roller rolls into contact with the elevator guide rails and defines the running trajectory of the elevator car or counterweight along the elevator guide rails; and

[0007] A mating component is installed at a preset position on the elevator guide rail and arranged outside the running trajectory without contacting the roller. It is configured such that when the elevator system is in a preset state and the elevator car or counterweight stops near the preset position, the mating component and the contact member press against each other to generate a force applied to the contact member. The force reduces the contact pressure between the roller and the elevator guide rail.

[0008] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the contact member is configured to have a first gap with the elevator guide rail without contacting it, and / or the force causes the roller to disengage from the elevator guide rail, and a second gap is formed between the roller and the elevator guide rail.

[0009] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the first gap is in the range of 1-10 mm, and / or the second gap is not less than 1 mm.

[0010] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the mating member is provided with different sections, and the contact member generates different magnitudes of force when it contacts the different sections.

[0011] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the mating member is provided with a first section and a second section, the second section being connected to the first section and arranged above the first section along the length direction of the elevator guide rail, the contact member generating a first force when in contact with the first section, and generating a second force when in contact with the second section, the second force being greater than the first force.

[0012] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the first section is configured to have a guide portion having a cross-section that gradually increases toward the second section, the second section is configured to have a planar portion having a surface parallel to the surface of the elevator guide rail, and the contact member abutting against the second section when the elevator car or counterweight stops near the preset position.

[0013] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the contact member is arranged above the roller along the length direction of the elevator guide rail, the mating member is arranged at a first preset distance from the top of the elevator shaft, and / or the mating member is arranged at a second preset distance from the bottom of the elevator shaft.

[0014] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the elevator car or counterweight is equipped with a first elevator guide shoe and a second elevator guide shoe, the first elevator guide shoe and the second elevator guide shoe are respectively arranged on a first side and a second side of the elevator guide rail, excluding the first elevator guide shoe which is arranged above the second elevator guide shoe along the length direction of the elevator guide rail, the contact member is disposed near at least one roller in the first elevator guide shoe and / or at least one roller in the second elevator guide shoe, and the mating member is correspondingly disposed on the first side and / or the second side for abutting contact with the corresponding contact member to generate the force.

[0015] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the contact element is connected to the support shaft of the roller or to a bracket for fixing the roller, and the contact element includes a rolling element.

[0016] In the elevator roller pressure adjustment assembly according to this disclosure, optionally, the distance between the preset position and the top or bottom of the elevator shaft is not less than 1m, and / or the preset state includes an idle state and a stopped state.

[0017] Secondly, according to another aspect of this disclosure, an elevator guide shoe is also provided for an elevator car or counterweight and includes a base, rollers, and a contact member. The rollers are mounted on the base, and the contact member is fixed relative to at least one of the rollers. During normal operation of the elevator system, the rollers roll into contact with the elevator guide rail and define the running trajectory of the elevator car or counterweight along the elevator guide rail. When the elevator system is in a preset state such that the elevator car or counterweight stops near a preset position on the elevator guide rail, the contact member presses against a mating member mounted at the preset position and arranged outside the running trajectory without contacting the rollers and bears the resulting force, which reduces the contact pressure between the rollers and the elevator guide rail.

[0018] In the elevator guide shoe according to this disclosure, optionally, the contact member is configured to have a gap with the elevator guide rail and not contact it; and / or, the mating member is configured to disengage the roller from the elevator guide rail by the force, thereby forming a gap between the roller and the elevator guide rail; and / or, the contact member is connected to the support shaft of the roller or to a bracket for fixing the roller, the contact member including a rolling element.

[0019] Furthermore, according to another aspect of this disclosure, an elevator system is also provided, including an elevator roller pressure adjustment assembly as described in any of the above claims.

[0020] Furthermore, according to another aspect of this disclosure, a method for adjusting elevator roller pressure is further provided, including the following steps:

[0021] The elevator system is equipped with an elevator roller pressure adjustment component as described in any of the above descriptions; and

[0022] When the elevator system is in a preset state, the elevator car or counterweight is stopped near the preset position of the mating component on the elevator guide rail, so that the mating component and the contact component press against each other to generate a force applied to the contact component, thereby reducing the contact pressure between the roller and the elevator guide rail.

[0023] In the elevator roller pressure adjustment method according to this disclosure, optionally, the preset state includes an idle state and a stopped state; and / or

[0024] By having the contact member contact different sections of the mating member, different magnitudes of force are generated when the elevator stops at a preset position on the elevator guide rail; and / or

[0025] The force causes the roller to disengage from the elevator guide rail, thereby creating a gap between the roller and the elevator guide rail.

[0026] By configuring and using the elevator roller pressure adjustment assembly and guide shoes disclosed herein in the elevator system, the rollers used in the elevator car or counterweight can be effectively protected, avoiding or mitigating deformation or damage to the rollers caused by pressure exerted between them and the elevator guide rails, especially static pressure. This helps reduce the impact of vibration, shock, and noise, improving the working performance and safety reliability of the elevator system and enhancing passenger comfort. The solution disclosed herein is easy to implement and low in cost, and can be applied to many applications, such as home elevators and public elevators. Attached Figure Description

[0027] The technical solutions of this disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that these drawings are designed for illustrative purposes only and are intended to conceptually illustrate the structural construction described herein, and are not necessarily drawn to scale.

[0028] Figure 1 This is a three-dimensional structural schematic diagram of an example elevator system that can employ an elevator roller pressure adjustment component according to the present disclosure.

[0029] Figure 2This is a side sectional view of an example elevator car, which also shows, from a left-side frontal view, two elevator guide shoes and a portion of the elevator guide rail structure mounted on the left side of the elevator car, without the elevator roller pressure adjustment assembly according to this disclosure.

[0030] Figure 3 The elevator roller pressure adjustment assembly embodiment according to this disclosure is installed on... Figure 2 A partial structural diagram of the elevator guide shoes and elevator guide rails on the example elevator car shown.

[0031] Figure 4 This is a schematic diagram of the processing steps according to an embodiment of the elevator roller pressure adjustment method of this disclosure. Detailed Implementation

[0032] Figure 1 This is a perspective view of an elevator system 100, which may include an elevator car 103, a counterweight 105, a tensioning member 107, guide rails (or track system) 109, a machine unit (or machine unit system) 111, a position reference device 113, and an electronic elevator controller (controller) 115. The elevator car 103 and the counterweight 105 are connected to each other via the tensioning member 107 and move along the elevator shaft 117 under driving force. The tensioning member 107 may include, for example, steel belts (such as coated steel belts) and / or ropes (such as wire ropes). The counterweight 105 may be configured to balance the load of the elevator car 103 and may be configured to facilitate simultaneous and opposite-direction movement of the elevator car 103 relative to the counterweight 105 along the guide rails 109 within the elevator shaft 117.

[0033] Tensioning member 107 can engage unit 111, which can be configured to control movement between elevator car 103 and counterweight 105. Unit 111 may include a motor or similar power unit to provide driving force to elevator system 100, and may be in a machine room-less configuration. Position reference device 113 may be arranged in other locations and / or configurations known in the art, such as mounted on a fixed portion at the top of elevator shaft 117, like a beam. Position reference device 113 may be configured to provide a position signal relating to the position of elevator car and / or counterweight within the elevator shaft, and may employ any device or mechanism known in the art for monitoring the position of elevator car and / or counterweight, such as, but not limited to, encoders, sensors, or other components, and may include speed sensing, absolute position sensing, etc.

[0034] Controller 115 may be located in controller room 121 of elevator shaft 117 and may be configured to control the operation of elevator system 100 (particularly elevator car 103). For example, controller 115 may provide drive signals to unit 111 to control the acceleration, deceleration, leveling, stopping, etc. of elevator car 103. Controller 115 may also be configured to receive position signals from position reference device 113 or any other desired such device or system. When moving up or down along guide rail 109 within elevator shaft 117, elevator car 103 may stop at one or more elevator floors 125 as controlled by controller 115. Although controller 115 is shown in controller room 121, those skilled in the art will appreciate that controller 115 may be located and / or configured in other places or locations within elevator system 100, such as remotely located or in the cloud.

[0035] The specific lifts and components shown and described in this document are as follows: Figure 1 These are non-limiting examples presented for illustrative and explanatory purposes only. It should be understood that other elevator systems can be configured to use the elevator roller pressure adjustment components and elevator guide shoes disclosed herein, for example, in home elevators, public elevators, etc. Furthermore, for the sake of simplicity in the drawings, identical or similar parts and features may be indicated only in one or more places in the same drawing. Technical terms such as "first," "second," etc., are used for distinguishing purposes only and are not intended to indicate their order or relative importance. The technical term "connection (or engagement)" includes connections (or engagements) achieved directly or indirectly.

[0036] Can be combined and compared for reference Figure 2 and Figure 3 ,exist Figure 2 The diagram illustrates a side sectional view of an example elevator car, showing the elevator guide shoes and a portion of the elevator guide rail structure mounted on that side from a left-side frontal view. The elevator roller pressure adjustment assembly of this disclosure is not present in this diagram. Figure 3 The image illustrates, in a schematic manner, an embodiment of an elevator roller pressure adjustment component being installed on... Figure 2 The partial structural configuration of the elevator car and guide rails shown is illustrated.

[0037] Specifically, in the given Figure 2In the example, guide shoe structures with several rollers can be installed at the upper and lower positions of the side 103b of the elevator car 103. For example, the lower guide shoe can be installed on the lower frame 103c of the elevator car 103. When the elevator car 103 is running, the rollers in these guide shoes can be used to perform rolling friction with the elevator guide rail 109, thereby limiting the running trajectory of the elevator car 103 along the elevator guide rail 109. Compared with sliding friction, rolling friction is more conducive to reducing friction loss, increasing running speed, and reducing vibration and noise during elevator operation.

[0038] As an optional implementation, in Figure 2 Both of these guide shoe structure examples are equipped with rollers 131a, 131b, 131c, and 131d. Rollers 131a, 131b, and 131c can be arranged on the first side 109a and the second side 109b of the elevator guide rail 109, respectively. Roller 131d is positioned corresponding to the outer end 109c of the elevator guide rail 109 facing the elevator shaft 117. That is, during the operation of the elevator car 103, these rollers can perform rolling friction on the three guide surfaces of the elevator guide rail 109, achieving smooth guidance and support. Figure 2 As shown, the upper and lower elevator guide shoes can be arranged in a relatively inverted manner to form a structure often referred to as "backpack type". This type of backpack structure elevator is often used in many occasions such as home elevators and private club elevators because it has the advantages of relatively simple configuration, space saving, convenient installation and low cost.

[0039] As those skilled in the art understand, elevator rollers are prone to problems such as wear, vibration, and noise during friction with the guide rails. Therefore, existing technologies commonly employ various methods to solve or mitigate these problems, such as selecting appropriate materials for the elevator rollers and optimizing their structure. For example, most existing elevator rollers are equipped with an elastic outer layer made of materials such as polytetrafluoroethylene (PTFE) or rubber to contact the elevator track, which can significantly reduce issues such as wear, vibration, and noise, making these problems less prominent and difficult to notice or feel during actual use, or even completely absent from the user's perception.

[0040] This application research has identified and noted several aspects of elevator rollers used in elevator cars and / or counterweights that can be improved. Specifically, when the rollers contact the elevator guide rails, for example, when the elevator has been stopped for an extended period (e.g., more than 10, 30, or 60 minutes, depending on the specific pressure resistance exhibited by the materials and structure used in the elevator rollers, and the properties of the elevator guide rail materials), the contact pressure between the rollers and the guide rails can cause indentation and deformation at the contact points. When the elevator resumes operation, these localized deformations can have undesirable effects, such as car vibration and operating noise. However, as the elevator operates, the constant rolling friction between the elevator rollers and the guide rails causes the rollers to gradually return to and maintain their roundness. This causes other parts of the rollers, along with the parts that have undergone local deformation, to re-form into a round or nearly round shape. As a result, the vibrations and noises caused by the previous local deformation quickly disappear. Users will not notice the deformation problems that occurred in the elevator rollers before, or even if they briefly notice the above phenomena, they will not realize that there is any abnormality because the phenomena disappear quickly. Therefore, it is not obvious that there may be these problems involving the elevator rollers.

[0041] According to this disclosure, an elevator roller pressure adjustment assembly can be configured for the elevator system to solve or at least alleviate such problems. It should be noted that the following descriptions of the elevator roller pressure adjustment assembly used on the elevator car side can also be applied to the counterweight side, and therefore will not be repeated.

[0042] As an example, as used herein, the pressure adjustment operation of the elevator rollers can be achieved by setting the contact element 132 and the mating element 134. First, refer to Figure 3 The upper guide shoe structure in the elevator guide shoe 130 can fix the contact 132 relative to the roller 131a in the elevator guide shoe 130. For example, the contact 132 can be connected to the support shaft 136 of the roller 131a, or it can be connected to the bracket 135 used to fix the roller 131a in place on the elevator guide shoe 130, or any other suitable structure. This fixes the contact 132 and the roller 131a relative to each other, enabling their linkage. Regarding the contact 132, it can be designed with any feasible structural construction, shape, and size as needed. For example, it can be in the form of a rolling element, such as a bearing, and can be installed in place using any feasible method such as welding or detachable connections (e.g., bolts, screws). The contact 132 can be made of one, two, or more materials as needed. For example, in some applications, rigid materials such as steel or iron can be used alone, while in other applications, the structure made of rigid materials can be wholly or partially covered with elastic or plastic materials.

[0043] When the elevator system 100 is operating normally, the contact member 132 may not contact the elevator guide rail 109. This is because during installation, the contact member 132 can be arranged to maintain a preset gap with the elevator guide rail 109. The specific value of this gap can be set or adjusted according to actual application needs. For example, it can be optionally set in the range of 1-10mm, such as 2mm, 3mm, 4mm, 5mm, 8mm, etc., or any value that meets the specific application requirements. In one or more embodiments, the contact member 132 may also be arranged to contact the elevator guide rail 109 when the elevator system 100 is operating normally, thus providing some support.

[0044] The mating part 134 is arranged on the elevator guide rail 109 to cooperate with the contact part 132 so that when needed, the roller 131a can be disengaged from the elevator guide rail 109, or the contact pressure between them can be reduced compared to when the elevator roller pressure adjustment component was not configured.

[0045] Specifically, refer to Figure 3 The upper guide shoe structure allows the mating part 134 to be installed at a preset position P1 on the elevator guide rail 109 by welding or detachable connection (e.g., bolts, screws, etc.). For example, the distance between the preset position P1 and the top of the elevator shaft 117 is not less than a preset value, such as 1m or any other suitable value. The preset position P1 is located outside the running trajectory of the elevator car 103 on the elevator guide rail 109, so the mating part 134 does not come into contact with the roller 131a. Thus, under the conditions required by the application, such as when the elevator system 100 is currently idle (e.g., exceeding a settable time period, such as 10 minutes, 20 minutes, or other values) or in a stopped state (e.g., when the elevator system receives a stop instruction from the operator, or enters a preset time point, such as from midnight to 6:00 AM the next day), the elevator car 103 can be moved to a position close to the preset location P1 and stopped. At this time, the contact member 132 can contact and press against the mating member 134, thereby generating a force F that acts on the contact member 132. As mentioned above, since the contact member 132 and the roller 131a are relatively fixed, the force F will be transmitted to the roller 131a via the contact member 132, thereby causing the roller 131a to move in a direction away from the elevator guide rail 109. For example, the roller 131a, which would originally be in contact with the elevator guide rail 109 and bear pressure, can move away from the elevator guide rail 109. Figure 2 It is now possible to disengage from the elevator guide rail 109, or to reduce the contact pressure between the elevator guide rail 109 and the elevator guide rail 109. Figure 2Compared to the situation shown, this is reduced, meaning that the adverse effects of local deformation of the roller 131a under static pressure when the elevator car is stopped can be mitigated.

[0046] When the roller 131a and the elevator guide rail 109 disengage due to the force F generated by the mating contact between the mating part 134 and the contact part 132, a gap is formed between them. At this time, the contact part 132 bears the contact pressure between the mating part 134 and the elevator guide rail 109, thereby effectively protecting and preventing local deformation of the roller 131a. Figure 3 The above gap has been schematically indicated by the reference numeral S1 in the attached figure. The gap S1 can be optionally controlled to be greater than or equal to 1 mm.

[0047] Depending on the application requirements, the mating parts 134 and the contact parts 132 can be designed and configured accordingly to achieve different pressure adjustment effects on the elevator rollers. For example, different forces F can be generated. These forces may have different magnitudes, which will have different effects on the displacement of the elevator rollers relative to the elevator guide rails.

[0048] For example, the mating part 134 can be configured with two, three, or more different segments, so that the contact part 132 can generate different magnitudes of force F when it contacts these different segments. For example, in Figure 3 In the example, the mating member 134 can optionally be configured with a first section 134a and a second section 134b, which can be arranged along the length direction X of the elevator guide rail 109. When the pressure adjustment component is needed, a first force is generated when the contact member 132 contacts the first section 134a of the mating member 134, and a second force is generated when the contact member 132 contacts the second section 134b of the mating member 134. The second force can be greater than the first force. Thus, as an option, by correspondingly designing the magnitudes of the first and second forces, different contact conditions between the roller 131a and the elevator guide rail 109 can be controlled to better achieve different desired effects. For example, a relatively small gap can be maintained under the first force, and a relatively large gap can be maintained under the second force. This is very advantageous considering that the roller 131a may wear down continuously during long-term use, as it allows for adaptive and flexible adjustment to provide the required gap S1.

[0049] To further illustrate, for example... Figure 3As shown, the first section 134a can be configured with, for example, a wedge-shaped guide portion, that is, a cross-section that gradually increases towards the second section 134b, so as to more smoothly guide the contact member 132 and the mating member 134 to make abutting contact. In addition, the second section 134b can be configured with a flat portion, the surface of which is parallel to the surface of the elevator guide rail 109. In this way, when the elevator car 103 is moved close to the preset position P1 of the mating member 134 and finally stops, the contact member 132 can first contact the first section 134a, and then remain in abutting contact with the second section 134b. At this time, the force F generated can be stably transmitted to the contact member 132, and then to the roller 131a, causing it to move in a direction away from the elevator guide rail 109, for example, maintaining a gap S1 between the roller 131a and the elevator guide rail 109, thereby avoiding the situation where the contact part of the roller 131a would be dented and deformed due to pressure on the elevator guide rail 109.

[0050] The above is based on Figure 3 The upper guide shoe structure in the example is used for illustration, and it should be understood that these illustrative situations also apply to the upper guide shoe structure. Figure 3 The lower guide shoe structure can, for example, have the corresponding mating part 134 arranged at a preset position P2 on the elevator guide rail 109. This preset position P2 is configured and used in correspondence with the aforementioned preset position P1. That is, when the contact part 132 and the mating part 134 used for the upper guide shoe structure form a pressing contact, the contact part 132 and the mating part 134 used for the lower guide shoe structure also form a pressing contact. This can simultaneously achieve positive and beneficial technical effects such as avoiding or alleviating the deformation of the contact surface of the roller 131b in the lower guide shoe structure.

[0051] It should be noted that, although in Figure 3 The diagram shows pressure adjustment components configured for both the upper and lower guide shoe structures. However, in one or more embodiments, only one guide shoe structure may be configured with a pressure adjustment component. For example, only the guide shoe structure located at the lower part of the elevator car may be configured with a pressure adjustment component. For instance, the mating member 134 may be arranged at a predetermined distance (e.g., 1m or any other suitable value) from the bottom of the elevator shaft 117. This allows the elevator car 103 to be stopped near the mounting position P2 of the mating member 134 when needed. The mating member 134 and the contact member 132 then generate a force F, causing the roller 131b to disengage from the elevator guide rail 109 or reducing the contact pressure between them. It should be noted that the gap S2 formed between the roller 131b and the elevator guide rail 109 after disengagement can be the same size as or different from the gap S1 discussed above, as long as it meets the specific requirements.

[0052] This disclosure also provides elevator guide shoes that differ from existing designs, in which contacts, such as those discussed above, can be configured. Figure 3 Two specific examples are given. The elevator guide shoe 130 may include a base 133, rollers 131a, 131b, 131c and 131d, and a contact member 132. These rollers are mounted on the base 133. The contact member 132 is arranged adjacent to and connected to the roller 131a in the upper guide shoe 130 or the roller 131b in the lower guide shoe 130. It is used to generate a force F by engaging with the mating member 134 when needed. The force F can cause the contact pressure between the roller 131a or 131b and the elevator guide rail 109 to be released or reduced, thereby protecting the target roller from or alleviating the adverse situation of local deformation due to pressure, which would lead to accelerated wear.

[0053] According to this disclosure, elevator guide shoes are not limited to Figure 3 The structural configuration of the embodiments can be modified by those skilled in the art to reduce or add any suitable components according to actual needs in different applications. For example, in some cases, only one roller may be configured, or multiple roller combinations may be formed; these modifications are all permissible. Contact elements can be configured for one or more rollers in the elevator guide shoes of this disclosure as needed, and mating elements, such as those discussed above, can be arranged at corresponding positions on the elevator guide rail to engage with these contact elements. Furthermore, one, two, or more elevator guide shoes of this disclosure can be configured and used as needed in the elevator system, for example, in combination with... Figure 2 As shown, in one or more embodiments, one or more of these elevator guide shoes may also be configured and installed on the other side 103a of the elevator car 103. Although it is beneficial to the overall balance to arrange the elevator guide shoes symmetrically on the sides 103a and 103b of the elevator car 103, in one or more embodiments they may also be arranged asymmetrically, or one or more elevator guide shoes provided by the prior art may be used in combination. This disclosure does not limit this.

[0054] Next reference Figure 4 The accompanying drawing illustrates the basic steps of an elevator roller pressure adjustment method according to this disclosure. In this embodiment, it may include the following steps:

[0055] In step S100, the elevator roller pressure adjustment assembly of this disclosure can be configured in the elevator system to protect the elevator rollers that are to be protected, avoid or mitigate the problems that may occur due to local deformation, resulting in undesirable damage to the roller structure, shaking of the elevator car or counterweight, easy noise generation, and impact on the comfort of riding the elevator. The composition, use and advantages of this elevator roller pressure adjustment assembly have been discussed in detail above with specific examples.

[0056] In step S200, the mating component of the elevator car or counterweight running near the elevator roller pressure adjustment assembly can be stopped at a preset position on the elevator guide rail, so that the mating component can make abutting contact with the contact component to generate force and apply it to the contact component, thereby transmitting it to the elevator roller so that the contact pressure between it and the elevator guide rail can be released or reduced.

[0057] Those skilled in the art will understand that, since the configuration, installation, and use of the elevator roller pressure adjustment component and elevator guide shoes have been described in detail above, for example, when the elevator system enters a preset state (e.g., idle state, stopped state, which can be detected or judged by, for example, controller 115), the elevator car or counterweight can be stopped at a preset position on the elevator guide rail near the mating component to adjust the current contact pressure between the elevator roller and the elevator guide rail, thereby eliminating or reducing it; or, for example, by making the contact component contact different sections on the mating component, different magnitudes of force F can be generated to meet the needs of different application situations; or, for example, the force F can be used to completely disengage the target roller to be protected from the elevator guide rail, thereby creating a gap between them. Therefore, one can directly refer to the specific descriptions and contents of the corresponding parts above, and thus form more possible steps and settings of the method disclosed herein, which will not be repeated here.

[0058] The above examples are merely illustrative of the elevator roller pressure adjustment assembly and method, elevator guide shoes, and elevator system according to this disclosure. These examples are only for illustrating the principles and implementation methods of this disclosure and are not intended to limit the scope of this disclosure. Various modifications and improvements can be made by those skilled in the art without departing from the scope of this disclosure. Therefore, all equivalent technical solutions should fall within the scope of this disclosure and be defined by the claims of this disclosure.

Claims

1. An elevator roller pressure adjustment assembly, characterized in that, include: A contact element is fixed relative to at least one roller disposed on the elevator car or counterweight. During normal operation of the elevator system, the roller makes rolling contact with the elevator guide rail and defines the running trajectory of the elevator car or counterweight along the elevator guide rail. as well as A mating component is installed at a preset position on the elevator guide rail and arranged outside the running trajectory without contacting the roller. It is configured such that when the elevator system is in a preset state and the elevator car or counterweight stops near the preset position, the mating component and the contact member press against each other to generate a force applied to the contact member. The force reduces the contact pressure between the roller and the elevator guide rail.

2. The elevator roller pressure adjustment assembly according to claim 1, wherein, The contact element is configured to have a first gap with the elevator guide rail without contacting it, and / or the force causes the roller to disengage from the elevator guide rail, and a second gap is formed between the roller and the elevator guide rail.

3. The elevator roller pressure adjustment assembly according to claim 2, wherein, The first gap is in the range of 1-10 mm, and / or the second gap is not less than 1 mm.

4. The elevator roller pressure adjustment assembly according to claim 1, wherein, The mating component is provided with different sections, and the contact component generates different magnitudes of force when it comes into contact with the different sections.

5. The elevator roller pressure adjustment assembly according to claim 4, wherein, The mating component is provided with a first section and a second section. The second section is connected to the first section and is arranged above the first section along the length direction of the elevator guide rail. When the contacting component contacts the first section, it generates a first force, and when the contacting component contacts the second section, it generates a second force. The second force is greater than the first force.

6. The elevator roller pressure adjustment assembly according to claim 5, wherein, The first section is configured to have a guide portion having a cross-section that gradually increases toward the second section. The second section is configured to have a planar portion whose surface is parallel to the surface of the elevator guide rail. When the elevator car or counterweight stops near the preset position, the contact member presses against the second section.

7. The elevator roller pressure adjustment assembly according to claim 1, wherein, The contact member is arranged above the roller along the length of the elevator guide rail, and the mating member is arranged at a first preset distance from the top of the elevator shaft, and / or the mating member is arranged at a second preset distance from the bottom of the elevator shaft.

8. The elevator roller pressure adjustment assembly according to claim 7, wherein, The elevator car or counterweight is equipped with a first elevator guide shoe and a second elevator guide shoe. The first elevator guide shoe and the second elevator guide shoe are respectively arranged on the first side and the second side of the elevator guide rail. The first elevator guide shoe is arranged above the second elevator guide shoe along the length direction of the elevator guide rail. The contact member is arranged near at least one roller in the first elevator guide shoe and / or at least one roller in the second elevator guide shoe. The mating member is correspondingly arranged on the first side and / or the second side for abutting contact with the corresponding contact member to generate the force.

9. The elevator roller pressure adjustment assembly according to claim 1, wherein, The contact element is connected to the support shaft of the roller or to a bracket for fixing the roller, and the contact element includes a rolling element.

10. The elevator roller pressure adjustment assembly according to claim 1, wherein, The distance between the preset position and the top or bottom of the elevator shaft is not less than 1m, and / or the preset state includes an idle state and a stopped state.

11. An elevator guide shoe, used in an elevator car or counterweight, characterized in that, The system includes a base, rollers, and a contact element. The rollers are mounted on the base, and the contact element is fixed relative to at least one of the rollers. During normal operation of the elevator system, the rollers roll in contact with the elevator guide rails and define the running trajectory of the elevator car or counterweight along the elevator guide rails. When the elevator system is in a preset state such that the elevator car or counterweight stops near a preset position on the elevator guide rails, the contact element presses against a mating part installed at the preset position and arranged outside the running trajectory without contacting the rollers, and bears the resulting force. This force reduces the contact pressure between the rollers and the elevator guide rails.

12. The elevator guide shoe according to claim 11, wherein, The contact element is configured to have a gap with the elevator guide rail without contacting it; and / or, the mating element is configured to disengage the roller from the elevator guide rail by the force applied, thereby creating a gap between the roller and the elevator guide rail; and / or, the contact element is connected to the support shaft of the roller or to a bracket for fixing the roller, the contact element including a rolling element.

13. An elevator system, characterized in that, Includes the elevator roller pressure adjustment assembly as described in any one of claims 1-10.

14. A method for adjusting the pressure of elevator rollers, characterized in that, Including the following steps: The elevator system is equipped with an elevator roller pressure adjustment assembly as described in any one of claims 1-10; and When the elevator system is in a preset state, the elevator car or counterweight is stopped near the preset position of the mating component on the elevator guide rail, so that the mating component and the contact component press against each other to generate a force applied to the contact component, thereby reducing the contact pressure between the roller and the elevator guide rail.

15. The elevator roller pressure adjustment method according to claim 14, wherein, The preset states include an idle state and a shutdown state; and / or By having the contact member contact different sections of the mating member, different magnitudes of force are generated when the elevator stops at a preset position on the elevator guide rail; and / or The force causes the roller to disengage from the elevator guide rail, thereby creating a gap between the roller and the elevator guide rail.

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