Elevator brake detection device

Abstract

The utility model relates to the technical field of elevators, and provides an elevator brake detection device, which comprises a first connecting frame, a connecting shaft, a mounting hole, an auxiliary roller, a second connecting frame, a moving block, a buffer rod, a buffer spring, a buffer block, a moving frame and a threading pipe, a mounting hole is formed in the upper surface of the first connecting frame, an auxiliary roller is mounted on the outer surface of the connecting shaft, the second connecting frame is mounted on the upper surface of the first connecting frame, a moving block is slidably connected to the interior of the second connecting frame, a buffer rod is arranged in the moving block in a penetrating mode, and a buffer spring is mounted on the outer side face of the moving block; the outer surfaces of the buffer rods penetrate through the buffer springs, and buffer blocks are installed at the outer ends of the buffer rods and the outer ends of the buffer springs. By means of the technical scheme, the problem that in the prior art, detection equipment is difficult to move within a large range along with an elevator, and the accuracy of detection data is reduced is solved.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to an elevator braking detection device. Background Technology

[0002] An elevator is a permanent transportation device that serves several specific floors within a building. Its car moves on at least two rigid tracks that are perpendicular to the horizontal plane or have an angle of inclination of less than 15° to the vertical. In routine maintenance, it is often necessary to test the elevator brakes to ensure the normal operation of the elevator.

[0003] In existing testing devices, the traction steel wire rope is connected to the car at one end via a traction sheave and to the counterweight at the other. To ensure that the car and counterweight move independently along guide rails in the hoistway without rubbing against each other, a guide wheel is placed on the traction machine to separate them. The weight of the car and counterweight causes the traction steel wire rope to press tightly into the groove of the traction sheave, generating friction. Thus, the motor rotates, driving the traction sheave to rotate, which in turn drives the steel wire rope, dragging the car and counterweight in relative motion. That is, the car rises while the counterweight falls; the counterweight rises while the car falls, allowing the traction machine to test the braking capability of the elevator brake. The minimum engagement voltage and maximum release voltage of the elevator brake's electromagnet are then recorded. However, the movement range of the car driven by the traction machine during the testing process is relatively short, making the test data inaccurate.

[0004] The aforementioned detection device suffers from low accuracy in transmitting data due to the difficulty of moving the detection equipment over a large area with the elevator, thus reducing the device's effectiveness. Utility Model Content

[0005] This invention proposes an elevator braking detection device to solve the problem in the prior art where detection equipment is difficult to follow the elevator's movement over a large range, resulting in reduced accuracy of detection data.

[0006] The technical solution of this utility model is as follows: An elevator brake detection device, including a first connecting frame, and further comprising:

[0007] The connecting shaft is rotatably connected to the inside of the first connecting frame. The upper surface of the first connecting frame has a mounting hole. An auxiliary roller is mounted on the outer surface of the connecting shaft. The second connecting frame is mounted on the upper surface of the first connecting frame. A movable block is slidably connected inside the second connecting frame. A buffer rod passes through the inside of the movable block. A buffer spring is mounted on the outer side of the movable block. The outer surface of the buffer rod passes through the inside of the buffer spring. Buffer blocks are mounted on the outer ends of the buffer rod and the buffer spring. The movable frame is mounted on the back of the movable block. A conduit is installed inside the movable frame.

[0008] In a preferred embodiment of the elevator brake detection device of this utility model, in order to facilitate the connection between the plug-in post and the connecting shaft, the plug-in post is provided inside the connecting shaft, and a fixing post is installed at the end of the plug-in post away from the connecting shaft.

[0009] In a preferred embodiment of the elevator brake detection device of this utility model, in order to facilitate the operator to fix the third connecting frame, the outer surface of the fixing column is rotatably connected to the third connecting frame, the side of the third connecting frame is penetrated by a fixing pin, and a plug-in block is installed at the end of the fixing column away from the plug-in column.

[0010] In a preferred embodiment of the elevator brake detection device of this utility model, in order to facilitate the operator in fixing the plug-in column, an auxiliary frame is installed on the outer surface of the fixing column, a plug-in rod passes through the inside of the auxiliary frame, and a fixing spring is installed on the outer side of the auxiliary frame.

[0011] In a preferred embodiment of the elevator brake detection device of this utility model, in order to prevent the plug-in column from loosening during operation, the plug-in rod passes through the fixed spring, and a blocking plate is installed at the outer end of the plug-in rod and the fixed spring, and the outer surface of the plug-in rod passes through the interior of the connecting shaft.

[0012] In a preferred embodiment of the elevator brake detection device of this utility model, in order to perform secondary fixation on the plug-in post, one end of the plug-in rod that passes through the connecting shaft is inserted into the plug-in post.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] In this invention, the transmission line of the detection device is wound around the surface of the auxiliary roller, and then the auxiliary roller is rotated by the rotating connecting shaft to extend the transmission line. Compared with the detection devices of the prior art, which can only detect a part of the area, this device can extend and retract the transmission line as the elevator moves up and down, thereby expanding the detection range of the detection device.

[0015] In this invention, a plug-in block is installed at the output end of the traction machine, allowing the connecting shaft to rotate with the rotation of the traction machine. Compared to existing elevators that can only move the detection equipment within a small range, this device can expand the detection range, enabling the output end of the traction machine and the connecting shaft to rotate synchronously, thus reducing the impact on the accuracy of the detection data. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cooperation structure between the third connecting frame and the fixed column in this utility model;

[0019] Figure 3 This is a vertical sectional view of the mating structure of the plug-in post and connecting shaft in this utility model;

[0020] Figure 4 This is an exploded view of the first connecting frame and connecting shaft mating structure in this utility model.

[0021] In the diagram: 1. First connecting frame; 2. Connecting shaft; 3. Mounting hole; 4. Auxiliary roller; 5. Second connecting frame; 6. Moving block; 7. Buffer rod; 8. Buffer spring; 9. Buffer block; 10. Moving frame; 11. Cable conduit; 12. Insertion post; 13. Fixed post; 14. Third connecting frame; 15. Fixing pin; 16. Insertion block; 17. Auxiliary frame; 18. Insertion rod; 19. Fixed spring; 20. Blocking plate; 21. Traction machine. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figures 1-4 As shown, this embodiment proposes an elevator brake detection device, including a first connecting frame 1, a connecting shaft 2, a mounting hole 3, an auxiliary roller 4, a second connecting frame 5, a moving block 6, a buffer rod 7, a buffer spring 8, a buffer block 9, a moving frame 10, and a conduit 11;

[0024] like Figure 4As shown, the connecting shaft 2 is rotatably connected inside the first connecting frame 1. The upper surface of the first connecting frame 1 has mounting holes 3. It should be noted that, through the cooperation of external bolts and mounting holes 3, the first connecting frame 1 is fixed to the crossbeam inside the elevator shaft. An auxiliary roller 4 is installed on the outer surface of the connecting shaft 2. The auxiliary roller 4 can rotate with the rotation of the output end of the traction machine 21, thus preventing the transmission line of the detection equipment from being stretched after the elevator moves downwards, ensuring the transmission line does not remain taut. The second connecting frame 5 is installed on the upper surface of the first connecting frame 1. A movable block 6 is slidably connected inside the second connecting frame 5. A buffer rod 7 passes through the interior of the movable block 6. A buffer spring 8 is installed on the outer side of the 6. The outer surface of the buffer rod 7 passes through the interior of the buffer spring 8. A buffer block 9 is installed on the outer end of the buffer rod 7 and the buffer spring 8. After the buffer block 9 hits the interior of the second connecting frame 5, the buffer block 9 moves inward, causing the buffer rod 7 to move inward along the moving block 6, compressing the buffer spring 8. The moving frame 10 is installed on the back of the moving block 6. A conduit 11 is installed inside the moving frame 10. It should be noted that before the test, the transmission line of the test equipment needs to be wound around the outer surface of the auxiliary roller 4. Then, the sensor at the bottom end of the transmission line is passed through the conduit 11 and extended backward, so that the sensor participating in the test is fixed on the elevator.

[0025] like Figure 2 and Figure 3 As shown, a plug-in post 12 passes through the interior of the connecting shaft 2. A fixing post 13 is installed at the end of the plug-in post 12 away from the interior of the connecting shaft 2. By manipulating the fixing post 13, the plug-in block 16 is inserted into the output end of the traction machine 21. Then, the plug-in post 12 is inserted into the connecting shaft 2, so that the fixing post 13, the plug-in post 12, the connecting shaft 2, and the output end of the traction machine 21 are on the same horizontal line, which facilitates subsequent synchronous rotation. A third connecting frame 14 is rotatably connected to the outer surface of the fixing post 13. A fixing pin 15 passes through the side of the third connecting frame 14. The plug-in block 16 is installed at the end of the fixing post 13 away from the plug-in post 12. An auxiliary frame 17 is installed on the outer surface, and a plug-in rod 18 passes through the inside of the auxiliary frame 17. It should be noted that since the auxiliary frame 17 is fixed to the outer surface of the fixed column 13, the auxiliary frame 17 will also rotate during the rotation of the fixed column 13, so there will be no situation where the rotation of the fixed column 13 is obstructed. A fixing spring 19 is installed on the outer side of the auxiliary frame 17, and the plug-in rod 18 passes through the fixing spring 19. A blocking plate 20 is installed on the outer end of the plug-in rod 18 and the fixing spring 19. The outer surface of the plug-in rod 18 passes through the inside of the connecting shaft 2, and one end of the plug-in rod 18 that passes through the connecting shaft 2 passes through the plug-in post 12.

[0026] In this embodiment, as Figure 1As shown, a fixed frame is provided on the right side of the first connecting frame 1. A traction machine 21 is installed on the upper surface of the fixed frame. The traction machine 21 is a common elevator power source on the market, responsible for driving the elevator. The output end of the traction machine 21 passes through the fixed frame. It should be noted that both the traction machine 21 and the first connecting frame 1 are fixed on the crossbeam in the elevator shaft during use. The output end of the traction machine 21 is connected to the elevator through the traction wheel and traction steel wire to control the movement of the elevator. The other end of the traction steel wire is connected to the counterweight. When the elevator moves downward, the counterweight moves upward, and when the elevator moves upward, the counterweight moves downward. The plug block 16 is slidably connected to the left side of the fixed frame. One end of the fixing pin 15 passes through the third connecting frame 14 and is threaded inside the fixed frame, so that the third connecting frame 14 is fixed to the left side of the fixed frame.

[0027] In this embodiment, the blocking plate 20 is moved outward to drive the plug rod 18 outward. The outward movement of the blocking plate 20 stretches the fixing spring 19, and the plug rod 18 is pulled outward from the plug post 12. The fixing post 13 is manipulated to insert the plug post 12 into the connecting shaft 2. The blocking plate 20 is released, and the fixing spring 19 rebounds, causing the blocking plate 20 to move inward. The inward movement of the blocking plate 20 drives the plug rod 18 to move inward. The plug rod 18 moves inward, passes through the connecting shaft 2, and inserts into the plug post 12. The third connecting frame 14 is manipulated to stick to the left side of the fixing frame, so that the plug block 16 is inserted into the output end of the traction machine 21. The fixing pin 15 is manipulated to pass through the third connecting frame 14 and insert into the fixing frame. Then, the fixing pin 15 is rotated clockwise to install the third connecting frame 14 on the left side of the fixing frame. The detection device is fixed above the second connecting frame 5. The transmission line of the detection device is wound around the outer surface of the auxiliary roller 4, and the sensor at the bottom of the transmission line is passed through the conduit 11 and fixed above the elevator.

[0028] When the traction machine 21 is started, its output end rotates, causing the traction sheave to rotate and move the traction steel wire, thus moving the elevator downwards and the counterweight upwards. The downward movement of the elevator causes the sensor at the bottom of the detection equipment's transmission line to move downwards as well. Simultaneously, the rotation of the output end of the traction machine 21 causes the insertion block 16 to rotate, which in turn causes the fixed column 13 to rotate. The rotation of the fixed column 13 then causes the auxiliary frame 17 to rotate, which in turn causes the insertion rod 18 to rotate. The rotation of the fixed column 13 causes the insertion column 12 to rotate, which in turn causes the connecting shaft 2 to rotate, connecting... The rotation of shaft 2 drives the auxiliary roller 4 to rotate, and the rotation of the auxiliary roller 4 releases the transmission line. During the release of the transmission line, the wire tube 11 moves left and right, and the left and right movement of the wire tube 11 drives the moving frame 10 to move left and right. The left and right movement of the moving frame 10 drives the moving block 6 to move left and right along the inside of the second connecting frame 5 to detect the elevator brake. When the buffer block 9 contacts the inner wall of the second connecting frame 5, the buffer block 9 moves inward, which drives the buffer rod 7 to move inward. The buffer rod 7 moves inward along the moving block 6, and the inward movement of the buffer block 9 compresses the buffer spring 8 to reduce the impact on the moving block 6.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An elevator brake detection device comprising a first connecting frame (1), characterized in that, Also includes: A connecting shaft (2) is rotatably connected inside the first connecting frame (1). The upper surface of the first connecting frame (1) is provided with a mounting hole (3). An auxiliary roller (4) is installed on the outer surface of the connecting shaft (2). The second connecting frame (5) is installed on the upper surface of the first connecting frame (1). A movable block (6) is slidably connected inside the second connecting frame (5). A buffer rod (7) is inserted inside the movable block (6). A buffer spring (8) is installed on the outer side of the movable block (6). The outer surface of the buffer rod (7) penetrates the interior of the buffer spring (8). A buffer block (9) is installed at the outer ends of the buffer rod (7) and the buffer spring (8). A movable frame (10) is installed on the back of the movable block (6), and a conduit (11) is installed inside the movable frame (10).

2. The elevator brake detection apparatus according to claim 1, characterized by A plug-in post (12) is inserted inside the connecting shaft (2), and a fixing post (13) is installed at one end of the plug-in post (12) away from the connecting shaft (2).

3. The elevator brake detection apparatus according to claim 2, characterized by The outer surface of the fixed column (13) is rotatably connected to a third connecting frame (14), and a fixing pin (15) passes through the side of the third connecting frame (14). A plug-in block (16) is installed at the end of the fixed column (13) away from the plug-in column (12).

4. The elevator brake detection apparatus according to claim 2, characterized by An auxiliary frame (17) is installed on the outer surface of the fixed column (13), and a plug rod (18) passes through the inside of the auxiliary frame (17). A fixing spring (19) is installed on the outer side of the auxiliary frame (17).

5. The elevator brake detection apparatus according to claim 4, characterized by The plug rod (18) passes through the fixed spring (19), and the outer ends of the plug rod (18) and the fixed spring (19) are equipped with blocking plates (20). The outer surface of the plug rod (18) passes through the interior of the connecting shaft (2).

6. The elevator brake detection device according to claim 5, characterized in that, One end of the plug rod (18) that passes through the connecting shaft (2) is inserted into the plug post (12).

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