Leveling anti-slip device of car elevator

Abstract

The utility model discloses a flat layer anti-slip device of a lift car elevator, which relates to the technical field of lift car elevators, and comprises two supporting seats, a self-locking control mechanism and a transmission mechanism, the two supporting seats are rotatably provided with the same main shaft, and the main shaft is provided with elevator cable rollers which are distributed at equal intervals. The self-locking type control mechanism is arranged, the worm can be driven by the stepping motor to rotate forwards and backwards, then the worm gear meshed with the worm can drive the elevator cable roller on the main shaft to rotate forwards and backwards so as to achieve the lifting action of the lift car elevator, and due to the self-locking performance after the worm and the worm gear are meshed, the self-locking type control mechanism has the self-locking function. By means of the technical means, the slip condition occurring after rotation of the elevator cable roller stops can be effectively prevented, the self-locking performance of the main shaft is directly improved, no clamping structure needs to be additionally arranged on the roller, control is more convenient and faster, the structure is simpler, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to a leveling anti-slip device for elevators. Background Technology

[0002] The lifting and lowering of elevator cars often depends on the rotation of elevator cable rollers installed at the top of the floor. The elevator car rises by winding and coiling the cable by rotating it in the forward direction, and the elevator car descends by releasing the cable by rotating it in the reverse direction. In order to prevent the elevator cable rollers from slipping during operation, anti-slipping devices need to be installed.

[0003] A search revealed that patent CN216336006U discloses a leveling anti-slip device for a car elevator, including an elevator cable roller. The inner side of the elevator cable roller has a cable groove, and the interior of the elevator cable roller has a rotating shaft slot. The rotating shaft slot is fixedly engaged with a movable main shaft, an irregularly shaped retaining shaft, and a retaining plate.

[0004] The aforementioned existing technology, due to the lack of self-locking performance of the movable main shaft, is prone to slippage. By adding anti-slip components, it can effectively lock the movable roller for fixation, preventing the roller from slipping down and causing personal injury. However, this technical method is relatively cumbersome to operate, inconvenient to use, and has poor practicality. In addition, the elevator cable roller will be continuously worn by the cable during long-term operation, causing its surface to heat up. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a leveling and anti-slip device for a car elevator.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A leveling anti-slip device for a car elevator includes two support seats, a self-locking control mechanism and a transmission mechanism. The same main shaft is rotatably mounted on the two support seats, and elevator cable rollers are installed on the main shaft at equal intervals.

[0008] The top outer walls of the two support bases are fixedly connected to the same guide rail, and the top of the guide rail is provided with a reciprocating cooling mechanism.

[0009] The self-locking control mechanism includes a fixed cover fixedly connected to the side wall of one of the support seats, a stepper motor fixedly installed on the outer wall of one side of the fixed cover, a worm gear fixedly mounted on the output shaft of the stepper motor, and a worm wheel fixedly mounted on one end of the main shaft.

[0010] As a preferred technical solution of this utility model, the output shaft of the stepper motor passes through one side of the fixed cover, and the worm and worm wheel mesh with each other and are both located inside the fixed cover.

[0011] As a preferred technical solution of this utility model, the reciprocating cooling mechanism includes two bearing seats symmetrically fixed to the top outer wall of the guide rail, a reciprocating lead screw rotatably mounted on the two bearing seats, and a reciprocating slider adapted to be mounted in the middle of the reciprocating lead screw.

[0012] As a preferred technical solution of this utility model, the reciprocating cooling mechanism further includes a sliding seat fixedly connected to the bottom outer wall of the reciprocating slider and slidably connected to the guide rail, a fan bracket fixedly connected to the bottom outer wall of the sliding seat, and two cooling fans fixedly installed at the bottom of the fan bracket.

[0013] As a preferred technical solution of this utility model, the transmission mechanism includes a lower pulley fixedly mounted on the main shaft and an upper pulley fixedly mounted on the reciprocating lead screw.

[0014] In a preferred embodiment of this invention, the lower pulley and the upper pulley are connected by the same transmission belt.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model is equipped with a self-locking control mechanism. A stepper motor can drive the worm gear to rotate forward and backward. Subsequently, the worm wheel meshing with the worm gear will drive the elevator cable roller on the main shaft to rotate forward and backward, thereby realizing the lifting and lowering action of the elevator car. Due to the self-locking performance of the worm gear and worm wheel after meshing, it can effectively prevent the elevator cable roller from slipping after the rotation stops. This technology directly increases the self-locking performance of the main shaft itself without adding any clamping structure to the roller, making it more convenient and faster to operate, simpler in structure, and improving practicality.

[0017] 2. This utility model is equipped with a reciprocating cooling mechanism. Under the transmission effect of the transmission mechanism, as long as the main shaft is working, the two cooling fans will reciprocate axially to fully and evenly cool the surface of the elevator cable roller, which solves the problem that the elevator cable roller will be continuously worn by the cable and cause its surface to heat up during long-term operation. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0020] Figure 2 This is a front view of the overall structure of this utility model;

[0021] Figure 3 This is a side view of the vertical cross-section of the fixing cover of this utility model;

[0022] Figure 4 This is a three-dimensional enlarged structural diagram of the sliding seat, fan bracket, and two cooling fans of this utility model.

[0023] In the diagram: 1. Support base; 2. Guide rail; 3. Main shaft; 4. Elevator cable roller; 5. Fixing cover; 6. Stepper motor; 7. Worm gear; 8. Worm wheel; 9. Bearing housing; 10. Reciprocating lead screw; 11. Reciprocating slider; 12. Sliding seat; 13. Fan bracket; 14. Cooling fan; 15. Lower pulley; 16. Upper pulley; 17. Drive belt. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1, referring to Figure 1-3 A leveling anti-slip device for a car elevator includes two support seats 1 and a self-locking control mechanism. The same main shaft 3 is rotatably mounted on the two support seats 1. Elevator cable rollers 4 are evenly distributed on the main shaft 3. The same guide rail 2 is fixedly connected to the top outer wall of the two support seats 1.

[0026] Specifically, the self-locking control mechanism includes a fixed cover 5 fixedly connected to the side wall of one of the support bases 1, a stepper motor 6 fixedly installed on the outer wall of one side of the fixed cover 5, a worm gear 7 fixedly mounted on the output shaft of the stepper motor 6, and a worm wheel 8 fixedly mounted on one end of the main shaft 3.

[0027] Furthermore, the output shaft of the stepper motor 6 passes through one side of the fixed cover 5, and the worm 7 and worm wheel 8 mesh with each other and are both located inside the fixed cover 5;

[0028] In this embodiment, the stepper motor 6 drives the worm gear 7 to rotate in both directions. Subsequently, the worm wheel 8, which meshes with the worm gear 7, drives the elevator cable roller 4 on the main shaft 3 to rotate in both directions, thereby realizing the lifting and lowering of the elevator car. Due to the self-locking performance of the worm gear 7 and the worm wheel 8 after they mesh, the slippage of the elevator cable roller 4 after it stops rotating can be effectively prevented. This technical means directly increases the self-locking performance of the main shaft 3 itself, without the need to add any clamping structure to the roller, making it more convenient and faster to operate, simpler in structure, and more practical.

[0029] Example 2, refer to Figure 1-2 and Figure 4 This embodiment is an optimization based on embodiment 1. Specifically, it is a leveling anti-slip device for a car elevator, which also includes a transmission mechanism, and the top of the guide rail 2 is provided with a reciprocating cooling mechanism.

[0030] More specifically, the reciprocating cooling mechanism includes two bearing seats 9 symmetrically fixed to the top outer wall of the guide rail 2, a reciprocating screw 10 rotatably mounted on the two bearing seats 9, a reciprocating slider 11 adapted to be mounted in the middle of the reciprocating screw 10, a sliding seat 12 fixedly connected to the bottom outer wall of the reciprocating slider 11 and slidably connected to the guide rail 2, a fan bracket 13 fixedly connected to the bottom outer wall of the sliding seat 12, and two cooling fans 14 fixedly mounted at the bottom of the fan bracket 13;

[0031] More specifically, the transmission mechanism includes a lower pulley 15 fixedly mounted on the main shaft 3 and an upper pulley 16 fixedly mounted on the reciprocating lead screw 10. The lower pulley 15 and the upper pulley 16 are connected by the same transmission belt 17.

[0032] In this embodiment, when the main shaft 3 rotates, it drives the lower pulley 15 to rotate. Then, under the transmission effect of the transmission belt 17, the upper pulley 16 drives the reciprocating screw 10 to rotate. Subsequently, under the guidance of the guide rail 2, the sliding seat 12, which cooperates with the reciprocating screw 10, drives the two cooling fans 14 installed on the fan bracket 13 to move axially back and forth. In this way, as long as the main shaft 3 is working, the two cooling fans 14 will move axially back and forth to fully and evenly cool the surface of the elevator cable roller 4, thus solving the problem that the elevator cable roller 4 will be continuously worn by the cable and cause its surface to heat up during long-term operation.

[0033] Working principle: First, the stepper motor 6 drives the worm gear 7 to rotate in both directions. Then, the worm wheel 8, which meshes with the worm gear 7, drives the elevator cable roller 4 on the main shaft 3 to rotate in both directions, thus realizing the lifting and lowering action of the elevator car. Due to the self-locking performance of the worm gear 7 and the worm wheel 8 after they mesh, it can effectively prevent the elevator cable roller 4 from slipping after it stops rotating. Second, when the main shaft 3 rotates, it drives the lower pulley 15 to rotate. Then, under the transmission effect of the transmission belt 17, the upper pulley 16 drives the reciprocating screw 10 to rotate. Then, under the guidance of the guide rail 2, the sliding seat 12, which cooperates with the reciprocating screw 10, drives the two cooling fans 14 installed on the fan bracket 13 to move axially back and forth. In this way, as long as the main shaft 3 is working, the two cooling fans 14 will move axially back and forth to fully and evenly cool the surface of the elevator cable roller 4.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leveling anti-slip device for a car elevator, comprising two support seats (1), the same main shaft (3) is rotatably mounted on the two support seats (1), and elevator cable rollers (4) are evenly distributed on the main shaft (3); Its features are, It also includes a self-locking control mechanism and a transmission mechanism. The top outer walls of the two support seats (1) are fixedly connected to the same guide rail (2), and the top of the guide rail (2) is provided with a reciprocating cooling mechanism. The self-locking control mechanism includes a fixed cover (5) fixedly connected to the side wall of one of the support bases (1), a stepper motor (6) fixedly installed on the outer wall of one side of the fixed cover (5), a worm gear (7) fixedly mounted on the output shaft of the stepper motor (6), and a worm wheel (8) fixedly mounted on one end of the main shaft (3).

2. The leveling and anti-slip device for a car elevator according to claim 1, characterized in that, The output shaft of the stepper motor (6) passes through one side of the fixed cover (5), and the worm (7) and worm wheel (8) mesh with each other and are both located inside the fixed cover (5).

3. The leveling and anti-slip device for a car elevator according to claim 1, characterized in that, The reciprocating cooling mechanism includes two bearing seats (9) symmetrically fixed to the top outer wall of the guide rail (2), a reciprocating screw (10) rotatably mounted on the two bearing seats (9), and a reciprocating slider (11) adapted to be mounted in the middle of the reciprocating screw (10).

4. The leveling and anti-slip device for a car elevator according to claim 1, characterized in that, The reciprocating cooling mechanism also includes a sliding seat (12) fixedly connected to the bottom outer wall of the reciprocating slider (11) and slidably connected to the guide rail (2), a fan bracket (13) fixedly connected to the bottom outer wall of the sliding seat (12), and two cooling fans (14) fixedly installed at the bottom of the fan bracket (13).

5. A leveling and anti-slip device for a car elevator according to claim 1, characterized in that, The transmission mechanism includes a lower pulley (15) fixedly mounted on the main shaft (3) and an upper pulley (16) fixedly mounted on the reciprocating lead screw (10).

6. A leveling and anti-slip device for a car elevator according to claim 5, characterized in that, The lower pulley (15) and the upper pulley (16) are connected by the same drive belt (17).

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