Self-driven elevator

Abstract

The utility model provides a self-driven elevator, which relates to the technical field of elevator equipment and comprises a guide rail, an elevator car, a driving device and a connecting piece, the connecting piece is connected with the driving device and the car; wherein the connecting piece and the mounting bracket are movably connected to a first connecting position, and the connecting piece and the car are movably connected to a second connecting position. On an orthographic projection formed along the rotating axis of the driving wheel, the connecting piece and the mounting bracket can rotate relative to each other based on a first connecting position, the connecting piece and the car can rotate relative to each other based on a second connecting position, and the horizontal transverse distance between the first connecting position and the gravity center of the car does not exceed 100mm; the horizontal transverse distance between the second connecting position and the gravity center of the lift car does not exceed 100 mm. According to the elevator car, the horizontal transverse distance between the connecting positions of the two ends of the connecting piece and the gravity center of the elevator car does not exceed 100 mm, the elevator car can be more balanced in the running process, the service life of the guide wheels of the elevator car is longer, and running noise is lower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of elevator equipment, and in particular to a self-driving elevator. BACKGROUND

[0002] The self-driving elevator directly drives the car to move up and down along the guide rail by using the driving wheel of the driving device, without the need to set counterweight, traction or traction cable, and the hoistway is simple in layout and high in utilization rate.

[0003] Chinese patent 202311684339.3 discloses a self-driving elevator. In this patent document, the self-driving elevator includes a guide rail, a car, a driving device, the car is limited to run along the guide rail, the driving device includes a mounting bracket, a driving wheel, and a driving source for driving the driving wheel to rotate, a connecting arm connects the car and the driving device; the connecting arm and the car are movably connected at a first connection position; the connecting arm and the driving device are movably connected at a second connection position; the driving wheel and the car are arranged on the same side of the guide rail and are arranged staggered up and down; under the action of the gravity load of the car, the connecting arm drives the driving wheel of the driving device to press the guide rail.

[0004] In such a self-driving elevator scheme, the car is limited and supported entirely by the guide rail on one side, which has high requirements for the guide rail and the car limiting structure, the guide wheel is easy to be damaged, and the operation noise is large. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the present application is to provide a self-driving elevator to solve the above problems of the prior art.

[0006] A self-driving elevator, comprising:

[0007] a guide rail;

[0008] a car limited to run along the guide rail;

[0009] a driving device including a mounting bracket, a driving wheel, and a driving source; the driving wheel and the driving source are assembled on the mounting bracket; the driving wheel presses the guide rail; the driving source is used to drive the driving wheel to rotate;

[0010] a connecting piece for connecting the driving device and the car; wherein the connecting piece and the mounting bracket are movably connected at a first connection position, and the connecting piece and the car are movably connected at a second connection position;

[0011] The connecting member and the mounting bracket are relatively rotatable at a first connecting position in an orthogonal projection formed along a rotation axis of the drive wheel, and the connecting member and the car are relatively rotatable at a second connecting position, a horizontal transverse distance between the first connecting position and the car gravity center being not more than 100 mm, and a horizontal transverse distance between the second connecting position and the car gravity center being not more than 100 mm.

[0012] Optionally, the first connecting position is horizontally and transversely aligned with the car gravity center, and the second connecting position is horizontally and transversely aligned with the car gravity center.

[0013] Optionally, an included angle between a line connecting the first connecting position and the second connecting position and a vertical direction is not more than 20°.

[0014] Optionally, the line connecting the first connecting position and the second connecting position is a vertical direction.

[0015] Optionally, the guide rail has a first guide rail surface close to a side of the drive wheel, and a second guide rail surface away from the side of the drive wheel; the drive device further has a guide wheel arranged at a side of the second guide rail surface.

[0016] Under the driving of the connecting member, the drive wheel presses the first guide rail surface, and the guide wheel presses the second guide rail surface.

[0017] Optionally, the first connecting position is located at a side of the drive wheel away from the guide rail.

[0018] Optionally, the guide rail includes a first guide rail and a second guide rail; the drive wheel includes a first drive wheel corresponding to the first guide rail, and a second drive wheel corresponding to the second guide rail; the first drive wheel corresponds to press the first guide rail; and the second drive wheel corresponds to press the second guide rail.

[0019] The drive source is arranged between the first drive wheel and the second drive wheel to simultaneously drive the first drive wheel and the second drive wheel to rotate.

[0020] Optionally, in an axial direction of the first drive wheel and the second drive wheel, the car gravity center is located between the first drive wheel and the second drive wheel.

[0021] Optionally, the mounting bracket includes a first mounting arm, a second mounting arm, a third mounting arm, and a fourth mounting arm.

[0022] The first mounting arm is arranged at an axial first side of the first drive wheel, and the second mounting arm is arranged at an axial second side of the first drive wheel.

[0023] The third mounting arm is arranged on an axially first side of the second driving wheel, and the fourth mounting arm is arranged on an axially second side of the second driving wheel.

[0024] Optionally, a first cross member is arranged between the first mounting arm and the second mounting arm; and a second cross member is arranged between the third mounting arm and the fourth mounting arm.

[0025] The connecting member comprises a first connecting member and a second connecting member which are parallel to each other; the first connecting member connects the first cross member and the car; and the second connecting member connects the second cross member and the car.

[0026] In the present application, the connecting member connects the driving device and the car; wherein the connecting member and the mounting bracket are movably connected at a first connecting position, and the connecting member and the car are movably connected at a second connecting position. In the orthographic projection along the rotation axis of the driving wheel, the connecting member and the mounting bracket can rotate relative to each other based on the first connecting position, and the connecting member and the car can rotate relative to each other based on the second connecting position. The horizontal lateral distance between the first connecting position and the car's gravity center is not more than 100 mm, and the horizontal lateral distance between the second connecting position and the car's gravity center is not more than 100 mm. In the present application, the horizontal lateral distance between the connecting position at both ends of the connecting member and the car's gravity center is not more than 100 mm, which can make the car more balanced during operation, the guide wheel of the car has a longer service life, and the operation noise is smaller. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a self-driving elevator in the embodiment of the present application.

[0028] Figure 2 is a partial structural schematic diagram of a self-driving elevator in the embodiment of the present application.

[0029] Figure 3 is another partial structural schematic diagram of a self-driving elevator in the embodiment of the present application.

[0030] Figure 4 is another partial structural schematic diagram of a self-driving elevator in the embodiment of the present application.

[0031] Fig. 10 is a structural schematic diagram of a self-driving elevator in the embodiment of the present application. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present application and further describe the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope of protection of the present application. In addition, in order to be clear and concise, the description of known functions and structures is omitted.

[0033] It should be noted that the embodiments and features in the present application can be combined with each other without conflict.

[0034] The present application provides a self-driving elevator, the elevator car moves up and down under the drive of the drive device to realize the lifting transportation of people or goods. The self-driving elevator can be used as a small household elevator, for example, a villa elevator. In the scheme of such a self-driving elevator, the car limit is entirely limited and supported by the guide rail on one side, which has high requirements for the guide rail and the car limit structure, the guide wheel is easy to be damaged, and the operation noise is large. Therefore, the present application improves the above-mentioned problems of the existing self-driving elevator. The specific description is as follows in conjunction with the drawings.

[0035] Reference Figure 1 The present application provides a self-driving elevator, the elevator car moves up and down under the drive of the drive device to realize the lifting transportation of people or goods. The self-driving elevator can be used as a small household elevator, for example, a villa elevator. In the scheme of such a self-driving elevator, the car limit is entirely limited and supported by the guide rail on one side, which has high requirements for the guide rail and the car limit structure, the guide wheel is easy to be damaged, and the operation noise is large. Therefore, the present application improves the above-mentioned problems of the existing self-driving elevator. The specific description is as follows in conjunction with the drawings.

[0036] Specifically, the drive device 30 includes a mounting bracket 31, a drive wheel 32, and a drive source 33, and the drive wheel 32 and the drive source 33 are assembled on the mounting bracket 31. Here, the drive source 33 can be specifically set as a motor, which is fixed on the mounting bracket 31, and the drive wheel 32 can be installed on the drive shaft of the motor. The drive wheel 32 is pressed against the guide rail 10, and when the drive source 33 drives the drive wheel 32 to rotate, the drive wheel 32 rolls and walks on the guide rail 10 by means of the friction between the drive wheel 32 and the guide rail 10.

[0037] Further, the connector 40 is used to connect the drive unit 30 and the car 20. The connector 40 is movably connected to the mounting bracket 31 at a first connection position 40a, and the connector 40 is movably connected to the car 20 at a second connection position 40b. Furthermore, on the orthographic projection formed along the rotation axis of the drive wheel 32, the connector 40 and the mounting bracket 31 can rotate relative to each other based on the first connection position 40a, and the connector 40 and the car 20 can rotate relative to each other based on the second connection position 40b. In a specific technical solution, the movable connection between the connector 40 and the mounting bracket 31 is specifically configured as a hinge, and the movable connection between the connector 40 and the car 20 is specifically configured as a hinge. Figure 1 and Figure 2 In the structure shown, under the gravity load of the car 20, the car 20 applies a force to the drive device 30 through the connector 40, causing the drive wheel 32 to press against the guide rail 10, thereby allowing the drive wheel 32 to roll on the guide rail 10.

[0038] exist Figure 1 and Figure 2 In the structure shown, the car 20 is directly mounted on the guide rail 10, and the drive unit 30 is located above the car 20. The car 20 and the drive unit 30 are connected only by a connector 40. This arrangement has several advantages. First, it eliminates the need for additional structures between the car 20 and the guide rail 10, resulting in a more compact structure and less space occupation in the hoistway. Second, the load on the car 20 can be used to drive the drive wheel 32 to press against the guide rail 10, increasing the clamping force between the drive wheel 32 and the guide rail 10, thereby increasing the stability of elevator operation. Furthermore, as the load on the car 20 increases, the clamping force of the drive wheel 32 also increases, providing sufficient friction to drive the car 20.

[0039] Figure 1 and Figure 2 The diagram shows an orthographic projection of the self-driven elevator along the rotation axis y of the drive wheel, i.e., a side view of the self-driven elevator observed along the rotation axis y of the drive wheel. On the orthographic projection along the rotation axis of the drive wheel 32, the horizontal lateral distance between the first connection position 40a and the car's center of gravity does not exceed 100mm, and the horizontal lateral distance between the second connection position 40b and the car's center of gravity does not exceed 100mm. Here, the horizontal lateral distance between the connection positions at both ends of the connector 40 and the car's center of gravity does not exceed 100mm, allowing the car 20 to be more balanced during operation, resulting in a longer lifespan for the guide wheels and lower operating noise. In one embodiment of this application, the first connection position 40a and the second connection position 40b are horizontally aligned with the car's center of gravity.

[0040] exist Figure 1 and Figure 2The shown structure shows horizontal transverse x, and the vertical line S of the center of gravity of the car, wherein the vertical line S of the center of gravity is a vertical line passing through the center of gravity of the car. Further, the horizontal transverse distance between the first connection position 40a and the center of gravity of the car can be regarded as the horizontal distance between the first connection position 40a and the vertical line S of the center of gravity, and the horizontal transverse distance between the second connection position 40b and the center of gravity of the car can be regarded as the horizontal distance between the second connection position 40b and the vertical line S of the center of gravity. Therefore, in Figure 1 and Figure 2 , the first connection position 40a and the second connection position 40b are both located within 100mm on both sides of the vertical line S of the center of gravity of the car. And when the first connection position 40a is horizontally transversely aligned with the center of gravity of the car, and the second connection position 40b is horizontally transversely aligned with the center of gravity of the car, the first connection position 40a and the second connection position 40b are both located on the vertical line S of the center of gravity of the car.

[0041] In an embodiment of the present application, the angle between the line connecting the first connection position 40a and the second connection position 40b and the vertical direction is not more than 20°. Further, the line connecting the first connection position 40a and the second connection position 40b is vertical. It should be understood that in the embodiment of the present application, on the orthographic projection formed along the rotation axis of the drive wheel 32, the connecting piece 40 can rotate relative to the mounting bracket 31 based on the first connection position 40a, and the connecting piece 40 can rotate relative to the car 20 based on the second connection position 40b, therefore, the force between the connecting piece 40 and the car 20 is located on the line connecting the first connection position 40a and the second connection position 40b, therefore, the angle between the direction of the force of the connecting piece 40 acting on the car and the vertical direction is not more than 20°, which can make the car 20 more balanced during operation, the guide wheel of the car 20 has a longer service life, and the noise during operation is smaller.

[0042] Referring to Figure 2 , in an embodiment of the present application, the guide rail 10 has a first guide rail surface 11 close to one side of the drive wheel 32, and a second guide rail surface 12 away from the drive wheel 32; the drive device 30 further has a guide wheel 34 arranged on the side of the second guide rail surface 12; under the drive of the connecting piece 40, the drive wheel 32 presses the first guide rail surface 11; the guide wheel 34 presses the second guide rail surface 12. In Figure 2 the shown structure, the first connection position 40a is located on the side of the drive wheel 32 away from the guide rail. Specifically, under the gravity load of the car 20, the car 20 applies a force to the drive device 30 through the connecting piece 40 to make the drive wheel 32 press the first guide rail surface 11 of the guide rail 10, and the guide wheel 34 press the second guide rail surface 12.

[0043] Referring to Figure 3 and Figure 4In an embodiment of the present application, the guide rails include first guide rails 10a and second guide rails 10b; the drive wheels include first drive wheels 321 and second drive wheels 322; the first drive wheels 321 correspond to the first guide rails 10a, and the second drive wheels 322 correspond to the second guide rails 10b; the first drive wheels 321 correspondingly press the first guide rails 10a; the second drive wheels 322 correspondingly press the second guide rails 10b; and a drive source 33 is arranged between the first drive wheels 321 and the second drive wheels 322 to simultaneously drive the first drive wheels 321 and the second drive wheels 322 to rotate. The drive source 33 can be a motor, and the output shafts of the motor extend from both ends to respectively drive the first drive wheels 321 and the second drive wheels 322 on both sides to synchronously rotate and roll and walk on the first guide rails 10a and the second guide rails 10b.

[0044] Further, in the axial direction of the first drive wheels 321 and the second drive wheels 322, the center of gravity of the car is located between the first drive wheels 321 and the second drive wheels 322. In this way, the operation of the car is more balanced.

[0045] With reference to the above Figure 3 and Figure 4 In an embodiment of the present application, the mounting bracket 31 includes first mounting arms 311, second mounting arms 312, third mounting arms 313, and fourth mounting arms 314; the first mounting arms 311 are arranged on the axial first side of the first drive wheels 321, and the second mounting arms 312 are arranged on the axial second side of the first drive wheels 321; the third mounting arms 313 are arranged on the axial first side of the second drive wheels 322, and the fourth mounting arms 314 are arranged on the axial second side of the second drive wheels 322.

[0046] Specifically, it should be understood that the first mounting arms 311 are arranged on the axial first side of the first drive wheels 321, and the second mounting arms 312 are arranged on the axial second side of the first drive wheels 321; one mounting arm is arranged on each of the axial sides of the first drive wheels 321 to make the force on the first drive wheels more balanced. The third mounting arms 313 are arranged on the axial first side of the second drive wheels 322, and the fourth mounting arms 314 are arranged on the axial second side of the second drive wheels 322; one mounting arm is arranged on each of the axial sides of the second drive wheels 322 to make the force on the second drive wheels more balanced.

[0047] With reference to the above Figure 3 and Figure 4In an embodiment of the present application, the first mounting arm 311 and the second mounting arm 312 are provided with a first cross member 315; the third mounting arm 313 and the fourth mounting arm 314 are provided with a second cross member 316; the connecting member 40 comprises a first connecting member 41 and a second connecting member 42 which are parallel to each other; the first connecting member 41 connects the first cross member 315 and the car; and the second connecting member 42 connects the second cross member 316 and the car. Here, the first cross member 315 can apply the force of the first connecting member 41 to the first mounting arm 311 and the second mounting arm 312 respectively, and the second cross member 316 can apply the force of the second connecting member 42 to the third mounting arm 313 and the fourth mounting arm 314 respectively.

[0048] In the above-described embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0049] In addition, the terms "first", "second", and the like are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited. It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that the features, steps, operations, devices, components and / or their combinations are present.

[0050] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them without departing from the scope defined by the claims of the present application.

Claims

1. A self-driven elevator, characterized in that, The utility model relates to a drive device for a rail transit system, comprising: a rail; a car defined to run along the rail; a drive device comprising a mounting bracket, a drive wheel, and a drive source; the drive wheel and the drive source are assembled on the mounting bracket; the drive wheel is pressed against the rail; the drive source is used to drive the drive wheel to rotate; a connecting member used to connect the drive device and the car; wherein the connecting member is movably connected with the mounting bracket at a first connecting position, and the connecting member is movably connected with the car at a second connecting position; in the orthographic projection along the rotation axis of the drive wheel, the connecting member and the mounting bracket can rotate relative to each other based on the first connecting position, and the connecting member and the car can rotate relative to each other based on the second connecting position; the horizontal lateral distance between the first connecting position and the center of gravity of the car is not more than 100 mm, and the horizontal lateral distance between the second connecting position and the center of gravity of the car is not more than 100 mm.

2. The self-powered elevator of claim 1, wherein, the first connecting position is horizontally and laterally aligned with the center of gravity of the car; and the second connecting position is horizontally and laterally aligned with the center of gravity of the car.

3. The self-powered elevator of claim 1, wherein, the included angle between the line connecting the first connecting position and the second connecting position and the vertical direction is not more than 20°.

4. The self-powered elevator of claim 3, wherein, the line connecting the first connecting position and the second connecting position is vertical.

5. The self-powered elevator according to any of claims 1-4, characterized in that, the rail has a first rail surface near the side of the drive wheel and a second rail surface away from the side of the drive wheel; the drive device further has a guide wheel arranged on the side of the second rail surface; under the drive of the connecting member, the drive wheel is pressed against the first rail surface, and the guide wheel is pressed against the second rail surface.

6. The self-powered elevator of claim 5, wherein, the first connecting position is located on the side of the drive wheel away from the rail.

7. The self-powered elevator of claim 5, wherein, the rail comprises a first rail and a second rail; the drive wheel comprises a first drive wheel corresponding to the first rail and a second drive wheel corresponding to the second rail; the first drive wheel is pressed against the first rail; and the second drive wheel is pressed against the second rail. the drive source is arranged between the first drive wheel and the second drive wheel to simultaneously drive the first drive wheel and the second drive wheel to rotate.

8. The self-powered elevator of claim 7, wherein, in the rotation axis direction of the first drive wheel and the second drive wheel, the center of gravity of the car is located between the first drive wheel and the second drive wheel.

9. The self-powered elevator of claim 7, wherein, the mounting bracket comprises a first mounting arm, a second mounting arm, a third mounting arm, and a fourth mounting arm; the first mounting arm is arranged on the axially first side of the first drive wheel, and the second mounting arm is arranged on the axially second side of the first drive wheel; the third mounting arm is arranged on the axially first side of the second drive wheel, and the fourth mounting arm is arranged on the axially second side of the second drive wheel.

10. The self-powered elevator of claim 9, wherein, a first lateral member is arranged between the first mounting arm and the second mounting arm; and a second lateral member is arranged between the third mounting arm and the fourth mounting arm. the connecting member comprises a first connecting member and a second connecting member which are parallel to each other; the first connecting member connects the first lateral member and the car; and the second connecting member connects the second lateral member and the car.

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