A toothed lift elevator

Abstract

The utility model provides a tooth type lift elevator relates to elevator field. The elevator includes: two opposite setting vertical guide rail, its opposite sides are equipped with vertical runner respectively, car frame can be vertically slidably arranged between two vertical guide rails, transmission structure, including two vertical straight rack and two plane gear, two vertical straight racks are fixed in two vertical runner respectively, two plane gears rotatablely install in the both sides of car frame respectively, and are engaged with the corresponding vertical straight rack, to drive car frame vertical sliding along vertical guide rail, and driving structure, including drive motor, self -lock type speed reducer and drive shaft, drive shaft rotatably sets up on car frame, and both ends are connected with two plane gear transmission respectively, drive shaft is connected with the output end of drive motor through self -lock type speed reducer. In the application, the meshing transmission of gear and rack can avoid the problems such as chain slack, wire rope tension change, and greatly improve the operation stability.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and more specifically, to a gear-type elevator. Background Technology

[0002] An elevator is an electromechanical device that runs vertically along fixed guide rails. Its core function is to provide vertical transportation services for people and goods within a building.

[0003] The core components of an elevator include the car, guide rails, and drive structure. The car, as the core carrier for people or goods, achieves stable guidance through sliding cooperation with the guide rails; the drive structure is the power source, responsible for driving the car to complete the lifting and lowering movements along the guide rails. The three work together to form the basic operating system of the elevator.

[0004] Currently, the implementation methods of drive structures are relatively traditional, with sprocket and chain drive and wire rope pulling being the mainstream forms. Both of these methods are susceptible to wear and tension variations during long-term operation, generally exhibiting insufficient stability and failing to fully meet the requirements for high precision and high reliability. Utility Model Content

[0005] The purpose of this utility model is to provide a toothed elevator, which aims to solve the technical problems in the background art mentioned above.

[0006] The embodiments of this utility model are implemented as follows: This application provides a gear-type elevator, comprising: two opposing vertical guide rails, each having a vertically extending groove on its facing side; a car frame, slidably disposed vertically between the two vertical guide rails; a transmission structure, comprising two vertical racks and two planar gears, the two vertical racks being fixed in the two vertical grooves, and the two planar gears being rotatably mounted on both sides of the car frame and meshing with the corresponding vertical racks to drive the car frame to slide vertically along the vertical guide rails; and a drive structure, comprising a drive motor, a self-locking reducer, and a drive shaft, the drive shaft being rotatably disposed on the car frame and having both ends connected to the two planar gears respectively, the drive shaft being connected to the output end of the drive motor via the self-locking reducer.

[0007] Furthermore, based on the aforementioned scheme, the vertical rack is disposed on the first sidewall corresponding to the vertical slide groove, and a first guide wheel is rolled on the second sidewall opposite to the first sidewall of the vertical slide groove, and the first guide wheel is rotatably connected to the car frame.

[0008] Furthermore, based on the aforementioned scheme, it also includes two safety counterweight structures, which are respectively installed on the two vertical guide rails; wherein, each of the safety counterweight structures includes a counterweight block, a fixed pulley, and a safety rope, the counterweight block is slidably installed on the vertical guide rail, the safety rope is wound around the fixed pulley, and its two ends are respectively connected to the counterweight block and the car frame, and the fixed pulley is installed above the counterweight block and the car frame.

[0009] Furthermore, based on the aforementioned scheme, a guide rail adapted to the sliding of the counterweight is provided on the outer surface of the vertical guide rail.

[0010] Furthermore, based on the aforementioned scheme, a second guide wheel is rotatably provided on the aforementioned car frame, and the second guide wheel rolls in cooperation with the outer side of the aforementioned vertical guide rail; wherein, the second guide wheel and the aforementioned guide rail are respectively located on opposite sides of the aforementioned vertical guide rail.

[0011] Furthermore, based on the aforementioned scheme, a third guide wheel structure and a fourth guide wheel structure are respectively provided on both sides of the aforementioned car frame; wherein, the aforementioned third guide wheel structure rolls in cooperation with the bottom of the corresponding vertical slide, and the aforementioned fourth guide wheel structure rolls in cooperation with the front and rear side walls of the corresponding vertical slide.

[0012] Furthermore, based on the aforementioned scheme, a braking structure is provided on any of the aforementioned vertical guide rails for braking the aforementioned safety rope on the aforementioned vertical guide rails; wherein, the aforementioned braking structure includes a fixed brake pad and a movable brake pad that can move towards or away from each other, the aforementioned fixed brake pad is fixed on the aforementioned vertical guide rail, the aforementioned movable brake pad is connected to an electric telescopic rod for driving the movement of the aforementioned movable brake pad, and the aforementioned safety rope passes through the aforementioned fixed brake pad and the aforementioned movable brake pad.

[0013] Furthermore, based on the aforementioned scheme, a winding wheel is fixedly sleeved on the aforementioned drive shaft, a protective rope is wound on the aforementioned winding wheel, and one end of the protective rope away from the aforementioned winding wheel extends to the top of the aforementioned car frame and is elastically connected to a mounting plate; wherein, the aforementioned mounting plate is disposed on the aforementioned vertical guide rail.

[0014] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects: The gear-type elevator of this application achieves stable lifting through a rack-and-pinion meshing transmission. The principle is as follows: two vertical guide rails have vertical grooves on their opposing sides, with vertical straight racks fixed within the grooves; rotatable planar gears are installed on both sides of the car frame, precisely meshing with the corresponding racks; the drive motor outputs power, which is transmitted to the drive shaft via a self-locking reducer. The drive shaft drives the planar gears at both ends to rotate synchronously, thereby driving the car frame to slide smoothly vertically along the vertical guide rails. Compared to traditional drive methods, its core advantages are: the meshing transmission of gears and racks avoids problems such as chain slack and changes in wire rope tension, significantly improving operational stability; the self-locking reducer can lock the transmission system in case of power failure or malfunction, improving safety; the overall structure has a fixed transmission ratio, meeting the requirements for high-precision lifting and effectively solving the shortcomings of insufficient stability in existing technologies. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an isometric view of a gear-type elevator according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified view of part A in the image; Figure 3 This is a partial schematic diagram of a toothed elevator according to an embodiment of the present invention; Figure 4 This is a partial schematic diagram showing the interaction between the planar gear, the vertical rack, and the car frame in an embodiment of this utility model. Figure 5 This is an axonometric view of the car frame according to an embodiment of the present utility model; Figure 6 This is a magnified view of part B in section 5; Figure 7 This is an isometric view of the vertical guide rail according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a toothed elevator according to an embodiment of the present invention; Figure 9 This is a magnified view of a portion of C in section 8; Figure 10 This is a magnified view of part D in 8.

[0017] Icons: 1-Vertical guide rail, 101-Vertical slide rail, 2-Car frame, 3-Drive motor, 4-Fixed pulley, 5-Fixed brake pad, 6-Movable brake pad, 7-Electric telescopic rod, 8-Safety rope, 9-Counterweight, 10-Guide rail, 11-First guide wheel, 12-Second guide wheel, 13-Rack and pinion, 14-Plane gear, 15-Third guide wheel structure, 16-Fourth guide wheel structure, 17-Self-locking reducer, 18-Drive shaft, 19-Protective rope, 20-Protective spring, 21-Mounting plate, 22-Winding wheel. Detailed Implementation

[0018] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0019] Please refer to Figures 1-7 This application provides a gear-type elevator, comprising: two opposing vertical guide rails 1, each having a vertically extending vertical groove 101 on its facing side; a car frame 2, vertically slidable between the two vertical guide rails 1; a transmission structure including two vertical racks 13 and two planar gears 14, the two vertical racks 13 being fixed in the two vertical grooves 101, the two planar gears 14 being rotatably mounted on both sides of the car frame 2 and meshing with the corresponding vertical racks 13 to drive the car frame 2 to slide vertically along the vertical guide rails 1; and a drive structure including a drive motor 3, a self-locking reducer 17, and a drive shaft 18, the drive shaft 18 being rotatably mounted on the car frame 2 and having both ends connected to the two planar gears 14 respectively, the drive shaft 18 being connected to the output end of the drive motor 3 through the self-locking reducer 17.

[0020] The gear-type elevator of this application achieves stable lifting through a rack-and-pinion meshing transmission. The principle is as follows: two vertical guide rails 1 have vertical grooves on their opposing sides, with vertical straight racks 13 fixed within the grooves; rotatable planar gears 14 are installed on both sides of the car frame 2, precisely meshing with the corresponding racks; the drive motor 3 outputs power, which is transmitted to the drive shaft 18 via a self-locking reducer 17. The drive shaft 18 drives the planar gears 14 at both ends to rotate synchronously, thereby driving the car frame 2 to slide smoothly vertically along the vertical guide rails 1. Compared to traditional drive methods, its core advantages are: the meshing transmission of gears and racks avoids problems such as chain slack and changes in wire rope tension, significantly improving operational stability; the self-locking reducer 17 can lock the transmission system in case of power failure or malfunction, improving safety; the overall structure has a fixed transmission ratio, meeting the requirements for high-precision lifting and effectively solving the shortcomings of insufficient stability in existing technologies.

[0021] In a preferred embodiment, the vertical rack 13 is disposed on the first side wall corresponding to the vertical slide groove 101, and the vertical slide groove 101 is rolledly engaged on the second side wall opposite to the first side wall. The first guide wheel 11 is rotatably connected to the car frame 2.

[0022] In the above embodiments, the structural design of "rack fixing + guide wheel cooperation" further optimizes the operational stability and transmission accuracy of the car frame 2. On the one hand, the first guide wheel 11 on the second side wall is rotatably connected to and rolls with the car frame 2, which can provide lateral limiting support for the car frame 2, ensuring that the planar gear 14 and the vertical straight rack 13 always maintain a precise meshing state, avoiding changes in meshing clearance caused by the offset of the car frame 2, and improving transmission reliability. On the other hand, the rolling cooperation replaces the sliding contact, which greatly reduces the frictional resistance and component wear during the lifting and lowering of the car frame 2, reducing energy consumption and extending the service life of core components such as guide rails and gears. At the same time, it further suppresses vibration and noise during operation, improving the overall smoothness of operation.

[0023] In a preferred embodiment, two safety counterweight structures are also included, which are respectively mounted on the two vertical guide rails 1. Each of the safety counterweight structures includes a counterweight block 9, a fixed pulley 4, and a safety rope 8. The counterweight block 9 is slidably mounted on the vertical guide rail 1, and the safety rope 8 is wound around the fixed pulley 4, with its two ends respectively connected to the counterweight block 9 and the car frame 2. The fixed pulley 4 is positioned above the counterweight block 9 and the car frame 2.

[0024] In the above embodiment, the elevator performance is improved from three dimensions: energy consumption optimization, safety protection, and operational stability through the design of "counterweight balancing + rope pulley transmission". On the one hand, the counterweight 9 is linked to the car frame 2 through the safety rope 8 around the set pulley 4, which can directly balance part of the weight of the car frame 2 itself and the load, significantly reducing the load pressure on the drive motor 3, reducing operating energy consumption, and reducing the force loss of the gear and rack transmission system. On the other hand, when the drive structure suddenly fails (such as power interruption or transmission failure), the gravity of the counterweight 9 can form a reverse pull on the car frame 2 through the safety rope 8, effectively slowing down the falling speed of the car frame 2 or limiting its displacement, adding a key safety redundancy to the elevator and avoiding the risk of sudden fall. In addition, the guiding effect of the fixed pulley 4 can ensure that the safety rope 8 is evenly stressed, so that the lifting and lowering actions of the counterweight 9 and the car frame 2 are synchronized and opposite, further suppressing the lateral sway of the car frame 2 during operation, complementing the previous guide wheel and gear and rack structure, and strengthening the overall operational stability.

[0025] As a preferred embodiment, the outer surface of the vertical guide rail 1 is provided with a guide rail 10 adapted to the sliding of the counterweight 9.

[0026] In the above embodiments, the guide rail 10 can accurately guide the counterweight 9 to slide smoothly along the vertical guide rail 1, avoiding deviation or jamming during sliding, thereby ensuring the synchronous linkage efficiency between the counterweight 9 and the car frame 2, and further enhancing the counterweight balance and safety protection effect.

[0027] In a preferred embodiment, a second guide wheel 12 is rotatably provided on the car frame 2, and the second guide wheel 12 rolls in cooperation with the outer side of the vertical guide rail 1; wherein the second guide wheel 12 and the guide rail 10 are respectively located on opposite sides of the vertical guide rail 1.

[0028] In the above embodiment, by separating the second guide wheel 12 and the guide slide rail 10 on opposite sides of the vertical guide rail 1, a bidirectional limit can be formed on the car frame 2, effectively preventing lateral deviation or swaying when the car frame 2 is raised or lowered.

[0029] In a preferred embodiment, a third guide wheel structure 15 and a fourth guide wheel structure 16 are respectively provided on both sides of the car frame 2; wherein, the third guide wheel structure 15 rolls with the bottom of the vertical slide groove 101, and the fourth guide wheel structure 16 rolls with the front and rear side walls of the vertical slide groove 101.

[0030] In the above embodiment, the third guide wheel structure 15 of the car frame 2 rolls with the bottom of the vertical slide 101, and the fourth guide wheel structure 16 rolls with the front and rear side walls of the vertical slide 101. This can not only greatly reduce sliding friction to extend the service life of the components, but also accurately limit the offset of the car frame 2 from the left, right and front and rear directions, further improving the stability and guiding accuracy of the elevator operation.

[0031] In a preferred embodiment, any of the aforementioned vertical guide rails 1 is provided with a braking structure for braking the safety rope 8 on the aforementioned vertical guide rail 1; wherein, the braking structure includes a fixed brake pad 5 and a movable brake pad 6 that can move toward or away from each other, the fixed brake pad 5 is fixed on the aforementioned vertical guide rail 1, the movable brake pad 6 is connected to an electric telescopic rod 7 for driving the movement of the movable brake pad 6, and the safety rope 8 passes between the fixed brake pad 5 and the movable brake pad 6.

[0032] In the above embodiments, the braking structure can drive the movable brake pad 6 and the fixed brake pad 5 to quickly clamp or separate and release the safety rope 8 through the electric telescopic rod 7, which can brake the safety rope 8 in a timely and reliable manner, further improving the response speed and stability of elevator safety protection.

[0033] Please refer to Figures 8-10As a preferred implementation, based on the aforementioned scheme, a winding wheel 22 is fixedly sleeved on the drive shaft 18, a protective rope 19 is wound on the winding wheel 22, and one end of the protective rope 19 away from the winding wheel 22 extends to the top of the car frame 2 and is elastically connected to a mounting plate 21; wherein, the mounting plate 21 is disposed on the vertical guide rail 1.

[0034] In the above embodiment, when the car frame 2 is raised and lowered, the drive shaft 18 will synchronously drive the winding wheel 22 to wind up the protective rope 19. The elastic connection between the protective rope 19 and the mounting plate 21 on the vertical guide rail 1 (such as the protective spring 20) can form a "dynamic buffer protection". When the drive structure suddenly fails (such as abnormal gear meshing or motor failure) and the car frame 2 falls unexpectedly, the protective rope 19 will be quickly tightened. The elastic connection can effectively absorb the impact force generated by the fall, avoid the car frame 2 from having a hard collision with the guide rail or other components, and greatly reduce the risk of injury to people and damage to goods in the car.

[0035] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0036] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A gear-type elevator, characterized in that, include: Two vertical guide rails (1) are arranged opposite each other, and vertical sliding grooves (101) extending vertically are provided on their opposite sides. The car frame (2) can be vertically slidably arranged between the two vertical guide rails (1); The transmission structure includes two vertical racks (13) and two planar gears (14). The two vertical racks (13) are respectively fixed in the two vertical slides (101), and the two planar gears (14) are respectively rotatably mounted on both sides of the car frame (2) and mesh with the corresponding vertical racks (13) to drive the car frame (2) to slide vertically along the vertical guide rail (1). as well as The drive structure includes a drive motor (3), a self-locking reducer (17), and a drive shaft (18). The drive shaft (18) is rotatably mounted on the car frame (2) and its two ends are respectively connected to the two planar gears (14). The drive shaft (18) is connected to the output end of the drive motor (3) through the self-locking reducer (17).

2. The gear-type elevator according to claim 1, characterized in that, The vertical rack (13) is disposed on the first side wall corresponding to the vertical slide (101), and the vertical slide (101) is rolled on the second side wall opposite to the first side wall. The first guide wheel (11) is rotatably connected to the car frame (2).

3. A gear-type elevator according to claim 1, characterized in that, It also includes two safety counterweight structures, which are respectively installed on the two vertical guide rails (1); The safety counterweight structure includes a counterweight block (9), a fixed pulley (4), and a safety rope (8). The counterweight block (9) is slidably mounted on the vertical guide rail (1). The safety rope (8) is wound around the fixed pulley (4) and its two ends are respectively connected to the counterweight block (9) and the car frame (2). The fixed pulley (4) is located above the counterweight block (9) and the car frame (2).

4. A gear-type elevator according to claim 3, characterized in that, The outer side of the vertical guide rail (1) is provided with a guide rail (10) adapted to the sliding of the counterweight (9).

5. A gear-type elevator according to claim 4, characterized in that, The car frame (2) is rotatably provided with a second guide wheel (12), which rolls with the outer side of the vertical guide rail (1); The second guide wheel (12) and the guide rail (10) are located on opposite sides of the vertical guide rail (1).

6. A gear-type elevator according to claim 1, characterized in that, The car frame (2) is provided with a third guide wheel structure (15) and a fourth guide wheel structure (16) on both sides respectively; The third guide wheel structure (15) rolls with the bottom of the vertical slide groove (101), and the fourth guide wheel structure (16) rolls with the front and rear side walls of the vertical slide groove (101).

7. A gear-type elevator according to claim 3, characterized in that, A braking structure is provided on any of the vertical guide rails (1) for braking the safety rope (8) on the vertical guide rail (1); The braking structure includes a fixed brake pad (5) and a movable brake pad (6) that can move towards or away from each other. The fixed brake pad (5) is fixed on the vertical guide rail (1). The movable brake pad (6) is connected to an electric telescopic rod (7) for driving the movement of the movable brake pad (6). The safety rope (8) passes between the fixed brake pad (5) and the movable brake pad (6).

8. A gear-type elevator according to claim 1, characterized in that, A winding wheel (22) is fixedly sleeved on the drive shaft (18), and a protective rope (19) is wound on the winding wheel (22). One end of the protective rope (19) away from the winding wheel (22) extends to the top of the car frame (2) and is elastically connected to the mounting plate (21). The mounting plate (21) is mounted on the vertical guide rail (1).

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