Self-driven elevator

Abstract

The utility model provides a kind of self-driven elevator, it is related to elevator technical field, comprising: multiple guide rails, car, drive assembly, movable connecting piece, inductor. Among them, multiple guide rails vertically extends and is sequentially transversely spaced distribution;Car is limited along guide rail operation;Drive assembly includes mounting bracket, multiple walking units, drive source;Inductor is used to measure the load borne by movable connecting piece. Drive assembly is provided with multiple walking units, and it is one-to-one correspondence with multiple guide rails;Walking unit includes a drive wheel, several A type guide wheels, and drive wheel and A type guide wheel are pressed tightly guide rail in the way of clamping. One movable connecting piece connects the mounting bracket of drive assembly and car, and car load is applied to each drive unit by one movable connecting piece, and the load of car is more balanced between each drive wheel, and the measurement of car load is also more convenient.

Description

Technical Field

[0001] This application relates to the field of elevator technology, and more particularly to a self-driving elevator. Background Technology

[0002] Self-propelled rail elevators directly drive the elevator car up and down using drive wheels, eliminating the need for counterweights, traction, or traction cables. This results in a simple shaft layout, high shaft utilization, and an aesthetically pleasing design. Lifting speed and height are unrestricted. Furthermore, the tire-driven drive wheels reduce vibration and noise, resulting in minimal wear, low noise, smooth and comfortable operation, and low maintenance costs.

[0003] Chinese patent CN202410738827.6 discloses a single-motor dual-rail drive elevator, including guide rails, a car frame, and a drive device. The drive device includes a mounting bracket, a motor, drive wheels, and a reducer. The motor has a first output end and a second output end on both sides, respectively driving the first and second drive wheels on both sides to move along the first and second guide rails. In the structure disclosed in this patent document, the mounting bracket of the drive device consists of two parts corresponding to the two drive wheels. Each part needs to be connected to the car frame via a connecting arm. With this structure, the load on the two drive wheels is prone to imbalance, and it is inconvenient to measure the car load. Utility Model Content

[0004] The technical problem to be solved by this application is to propose a self-driven elevator to address the above-mentioned shortcomings of the prior art.

[0005] A self-driving elevator, the self-driving elevator comprising:

[0006] Multiple guide rails, which extend vertically and are distributed laterally at intervals in sequence;

[0007] The car is restricted to running along the guide rails;

[0008] The drive assembly includes: a mounting frame, multiple traveling units, and a drive source; the multiple traveling units and the drive source are mounted on the mounting frame; the multiple traveling units are arranged laterally at intervals, corresponding one-to-one with the multiple guide rails; each traveling unit includes a drive wheel and several type A guide wheels, the drive wheel and the type A guide wheels clamping the guide rails; the drive wheels of all traveling units and the car are located on the same side of the multiple guide rails, and the drive wheels of the traveling units are vertically staggered from the car; the drive source is used to drive the drive wheels of the traveling units to rotate.

[0009] A movable connector is provided, with a first connection between the movable connector and the mounting bracket; a second connection between the movable connector and the car; on the orthographic projection formed by the rotation axis of the drive wheel, the movable connector and the mounting bracket can rotate relative to each other based on the first connection, and the movable connector and the car can rotate relative to each other based on the second connection; under the load of the car, the movable connector drives each drive wheel to press against the corresponding guide rail;

[0010] A sensor is used to measure the load borne by the movable connector.

[0011] Optionally, the mounting frame includes multiple sub-supports, each corresponding to a walking unit; the movable connector is connected to all the sub-supports via a connecting structure to form a first connection relationship.

[0012] Optionally, the connection structure includes: a horizontal connector and a plurality of sub-connectors; the sub-connectors are connected to the sub-support in a one-to-one correspondence; all the sub-connectors and the movable connectors are connected to the horizontal connector.

[0013] Optionally, the sub-support includes a first mounting arm and a second mounting arm, which are respectively arranged on both sides of the drive wheel of the corresponding walking unit; a transverse member is provided between the first mounting arm and the second mounting arm, and a corresponding sub-connector is connected to the transverse member.

[0014] Optionally, the movable connector is rotatably connected to the transverse connector.

[0015] Optionally, the self-driven elevator is specifically provided with two guide rails; the drive assembly is provided with two traveling units; and the mounting frame is provided with two sub-supports.

[0016] Optionally, the drive assembly includes a drive source consisting of a motor; the drive source is located between the two sub-supports to simultaneously drive the drive wheels on both sub-supports to rotate.

[0017] Optionally, the drive wheels of the walking unit are located above the car.

[0018] Optionally, the sensor is a pin-type load cell, which acts as a pin between the movable connector and the car, thereby forming a second connection between the movable connector and the car.

[0019] Optionally, the sensor is a strain gauge sensor, with its strain gauges arranged on the movable connector.

[0020] In the self-driven elevator provided in this application, the drive assembly is equipped with multiple traveling units, each corresponding to a number of guide rails. Each traveling unit includes a drive wheel and several Class A guide wheels, which clamp the guide rails together. A movable connector connects the drive assembly's mounting bracket and the car. The car load is applied to each drive unit by the movable connector, resulting in a more balanced distribution of the car load among the drive wheels and making the measurement of the car load more convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the self-driven elevator in the embodiments of this application.

[0022] Figure 2 This is one of the partial structural schematic diagrams of the self-driven elevator in the embodiments of this application.

[0023] Figure 3 This is the second partial structural schematic diagram of the self-driven elevator in the embodiments of this application.

[0024] Figure 4 This is the third partial structural schematic diagram of the self-driven elevator in the embodiments of this application.

[0025] Reference numerals: guide rail 10, car 20, drive assembly 30, mounting bracket 31, sub-bracket 311, first mounting arm 3111, second mounting arm 3112, transverse component 3113, walking unit 32, drive wheel 321, type A guide wheel 322, drive source 33, movable connector 41, connecting structure 42 (transverse connector 421, sub-connector 422, pin-type load cell 50). Detailed Implementation

[0026] The following are specific embodiments of this application, described in conjunction with the accompanying drawings, to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments. In the following description, specific details such as particular configurations and components are provided merely to aid in a comprehensive understanding of the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope of protection of this application. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] This application provides a self-driven elevator, in which the elevator car moves up and down under the drive of a drive assembly to achieve the lifting and transport of people or goods.

[0029] refer to Figures 1-4The self-driven elevator includes multiple guide rails 10, a car 20, a drive assembly 30, a movable connector 41, and a sensor. The multiple guide rails 10 extend vertically and are arranged laterally at intervals. The car 20 is limited to running along the guide rails 10. The drive assembly 30 includes: a mounting frame 31, multiple travel units 32, and a drive source 33; the multiple travel units 32 and the drive source 33 are mounted on the mounting frame 31; the multiple travel units 32 are arranged laterally at intervals, corresponding one-to-one with the multiple guide rails 10; for any travel unit 32, it includes a drive wheel 321 and several type A guide wheels 322, the drive wheel 321 and the type A guide wheels 322 clamping the guide rails 10; the drive wheels 321 of all travel units 32 and the car 20 are located on the same side of the multiple guide rails 10, and the drive wheels 321 of the travel units 32 are vertically staggered from the car 20; the drive source 33 is used to drive the drive wheels 321 of the travel units 32 to rotate.

[0030] A first connection is established between the movable connector 41 and the mounting bracket 31; a second connection is established between the movable connector 41 and the car 20; on the orthographic projection formed by the rotation axis of the drive wheel 321, the movable connector 41 and the mounting bracket 31 can rotate relative to each other based on the first connection, and the movable connector 41 and the car 20 can rotate relative to each other based on the second connection; under the load of the car 20, the movable connector 41 drives each drive wheel 321 to press against the corresponding guide rail 10. A sensor is used to measure the load borne by the movable connector 41.

[0031] The first connection between the movable connector 41 and the mounting bracket 31 can be a direct connection or an indirect connection formed through an intermediate structure. This first connection allows relative rotation between the movable connector 41 and the mounting bracket 31. The second connection between the movable connector 41 and the car 20 can also be a direct connection or an indirect connection formed through an intermediate structure. This second connection allows relative rotation between the movable connector 41 and the car 20.

[0032] It should be understood that the drive assembly 30 has multiple drive wheels 321, each drive wheel 321 forming a traveling unit 32. Under the load of the car 20, the movable connector 41 acts on the mounting frame 31, and ultimately, the load of the car 20 is shared by all the traveling units 32. Furthermore, under the load of the car 20, the movable connector 41 drives each drive wheel 321 to press against the corresponding guide rail 10. Each drive wheel 321 can obtain sufficient friction through the pressing force, enabling it to roll on the guide rail 10. The drive source 33 can be configured as a motor. When the drive source 33 outputs power, the drive wheels 321 rotate, achieving up and down movement through friction with the guide rail surface.

[0033] Furthermore, the walking unit 32 includes a drive wheel 321 and a type A guide wheel 322, which clamp the corresponding guide rails. In addition, the walking unit 32 may also include guide wheels in other directions to ensure that the drive assembly 30 and the guide rail 10 are reliably connected together and do not separate.

[0034] Specifically, the guide wheels include type A guide wheels 322 and guide wheels in other directions. Figure 1 and Figure 2 In the structure shown, a movable frame is arranged on the mounting frame 31, and guide wheels are mounted on the movable frame.

[0035] Multiple guide rails 10 are arranged laterally at intervals, and correspondingly, multiple traveling units 32 are arranged laterally at intervals; the guide rails 10 and traveling units 32 are connected in a one-to-one correspondence. The drive wheels 321 of each traveling unit 32 travel on their respective guide rails 10. The load of the car 20 is shared by all traveling units 32, therefore, an imbalance in load may occur among the traveling units 32. To address this, in the self-driven elevator provided in this embodiment, a movable connector 41 connects the mounting frame 31 of the drive assembly 30 and the car 20. The load of the car 20 is applied to each drive unit 32 by the movable connector 41. In this way, the load of the car 20 is more evenly distributed among the drive wheels, and the measurement of the load of the car 20 is also more convenient.

[0036] The sensor is used to measure the load borne by the movable connector 41, and can be used to realize overload protection of elevator equipment. The sensor here is a load cell, which can directly or indirectly measure the force on the movable connector 41. The sensor can be arranged in various positions, and it is only necessary to measure the load on the movable connector 41.

[0037] In one embodiment of this application, the sensor is a strain gauge sensor, with its strain gauge arranged on the movable connector 41. The load cell uses strain gauge technology; when subjected to force, it deforms, and the resistance of the strain gauge changes, which is converted into an electrical signal output.

[0038] In one embodiment of this application, the sensor is a pin-type load cell 50, which acts as a pin between the movable connector 41 and the car 20, forming a second connection between the movable connector 41 and the car 20. Specifically, the pin-type load cell is a mechanical-electronic conversion device, which is usually cylindrical in shape and directly replaces the original pins (such as connecting pins, support pins, etc.) in mechanical equipment. While undertaking the structural connection or support function, it measures the magnitude of the force in real time.

[0039] The drive assembly 30 and the car 20 are arranged vertically offset, with the drive assembly 30 located either above or below the car 20. Figure 1 and Figure 2 In the structure shown, the drive assembly 30 is located above the car 20, and the drive wheel 321 of the traveling unit 32 on it is located above the car 20.

[0040] A first connection is established between the movable connector 41 and the mounting frame 31; a second connection is established between the movable connector 41 and the car 20. The first connection between the movable connector 41 and the mounting frame 31 enables the load to be transferred to each traveling unit 32 on the mounting frame 31. In one embodiment of this application, the mounting frame 31 includes a plurality of sub-supports 311, each sub-support 311 corresponding to a traveling unit 32; the movable connector 41 is connected to all the sub-supports 311 through a connecting structure to form the first connection.

[0041] Further, the connection structure 42 includes: a transverse connector 421 and a plurality of sub-connectors 422; the sub-connectors 422 are connected one-to-one to the sub-support 311; all the sub-connectors 422 and the movable connector 41 are connected to the transverse connector 421. Figure 3 and Figure 4 In the structure shown, the sub-connector 422 connects the corresponding sub-support 311 to the transverse connector 421; each sub-support 311 is provided with a corresponding sub-connector 422, so that all sub-supports 311 can be connected to the transverse connector 421. In addition, the movable connector 41 connects the transverse connector 421 and the car 20 together, so that each sub-support 311 is connected to the car 20.

[0042] The movable connector 41 is rotatably connected to the transverse connector 421, thereby allowing relative rotation between the movable connector 41 and the mounting bracket 31. The sub-connector 422 can be fixedly or movably connected to the transverse connector 421, and the sub-connector 422 can be fixedly or movably connected to the sub-bracket 311.

[0043] The sub-support 311 includes a first mounting arm 3111 and a second mounting arm 3112, which are respectively arranged on both axial sides of the drive wheel 321 of the corresponding walking unit 32. A transverse member 3113 is provided between the first mounting arm 3111 and the second mounting arm 3112, and a corresponding sub-connector 422 is connected to the transverse member 3113. In this structure, a mounting arm is arranged on each axial side of the drive wheel 321, which allows the force on the drive wheel 321 to be more balanced.

[0044] refer to Figures 1-4 In one embodiment of this application, the self-driven elevator specifically includes two guide rails 10; the drive assembly 30 is provided with two traveling units 32; and the mounting frame 31 includes two sub-supports 311. Figures 1-4 In the structure shown, each of the two sub-supports 311 includes a first mounting arm 3111 and a second mounting arm 3112, as well as a transverse member 311; each of the two sub-supports 311 corresponds to a sub-connector 422, and is connected to the transverse connector 421 through its respective sub-connector 422.

[0045] The drive assembly 30 includes a drive source 33 composed of a motor. The drive source 33 is positioned between two sub-supports 311 to simultaneously drive the drive wheels 321 on both sub-supports 311 to rotate. The motor is located between the drive wheels 321 on both sides, and its output shaft extends beyond the motor housing on both sides, forming two output ends. These output ends, namely the first and second output ends, can rotate synchronously to output power, driving the drive wheels on both sides to rotate synchronously. Additionally, in some technical solutions, a reducer is provided between the drive wheels and the motor's output shaft. Furthermore, the drive assembly 30 also includes a brake, which can apply braking force to the motor's output shaft.

[0046] In summary, in the self-driven elevator provided in this application, the drive assembly is equipped with multiple traveling units, each corresponding to a specific guide rail. Each traveling unit includes a drive wheel and several Class A guide wheels, which clamp the guide rails together. A movable connector connects the drive assembly's mounting bracket and the car. The car load is applied to each drive unit by this movable connector, resulting in a more balanced distribution of the car load among the drive wheels and making the measurement of the car load more convenient.

[0047] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] The specific embodiments described herein are merely illustrative examples of the technical solutions of this application. Those skilled in the art to which this application pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the scope defined by the claims of this application.

Claims

1. A self-propelled elevator, characterized in that, The self-driven elevator includes: Multiple guide rails, which extend vertically and are distributed laterally at intervals in sequence; The car is restricted to running along the guide rails; The drive assembly includes: a mounting frame, multiple traveling units, and a drive source; the multiple traveling units and the drive source are mounted on the mounting frame; the multiple traveling units are arranged laterally at intervals, corresponding one-to-one with the multiple guide rails; each traveling unit includes a drive wheel and several type A guide wheels, the drive wheel and the type A guide wheels clamping the guide rails; the drive wheels of all traveling units and the car are located on the same side of the multiple guide rails, and the drive wheels of the traveling units are vertically staggered from the car; the drive source is used to drive the drive wheels of the traveling units to rotate. A movable connector is provided, with a first connection between the movable connector and the mounting bracket; a second connection between the movable connector and the car; on the orthographic projection formed by the rotation axis of the drive wheel, the movable connector and the mounting bracket can rotate relative to each other based on the first connection, and the movable connector and the car can rotate relative to each other based on the second connection; under the load of the car, the movable connector drives each drive wheel to press against the corresponding guide rail; A sensor is used to measure the load borne by the movable connector.

2. The self-driving elevator according to claim 1, characterized in that, The mounting frame includes multiple sub-supports, each corresponding to a walking unit; the movable connector is connected to all the sub-supports through a connecting structure to form a first connection relationship.

3. The self-driving elevator according to claim 2, characterized in that, The connection structure includes: a horizontal connector and multiple sub-connectors; the sub-connectors are connected to the sub-support in a one-to-one correspondence; all sub-connectors and movable connectors are connected to the horizontal connector.

4. The self-driving elevator according to claim 3, characterized in that, The sub-support includes a first mounting arm and a second mounting arm, which are respectively arranged on both sides of the axial direction of the drive wheel of the corresponding walking unit; a transverse member is provided between the first mounting arm and the second mounting arm, and a corresponding sub-connector is connected to the transverse member.

5. The self-driving elevator according to claim 3, characterized in that, The movable connector is rotatably connected to the transverse connector.

6. The self-driving elevator according to claim 2, characterized in that, The self-driven elevator is specifically equipped with two guide rails; the drive assembly is equipped with two traveling units; and the mounting frame includes two sub-supports.

7. The self-driving elevator according to claim 6, characterized in that, The drive assembly is provided with a drive source consisting of a motor; the drive source is located between the two sub-supports to simultaneously drive the drive wheels on both sub-supports to rotate.

8. The self-propelled elevator according to any one of claims 1-7, characterized in that, The drive wheels of the walking unit are located above the car.

9. The self-propelled elevator according to any one of claims 1-7, characterized in that, The sensor is a pin-type load cell, which acts as a pin between the movable connector and the car, thereby forming a second connection between the movable connector and the car.

10. The self-propelled elevator according to any one of claims 1-7, characterized in that, The sensor is a strain gauge sensor, and its strain gauges are arranged on the movable connector.

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