Tensile detection device for elevator rope head

Abstract

The utility model relates to an elevator rope head tensile detection device which comprises a detection table, an inner cavity of the detection table is provided with an inner groove, an inner cavity of the inner groove is rotatably connected with a rotating seat extending to the surface of the detection table, and the surface of the rotating seat is fixedly connected with a limiting block used for limiting the tail end of a rope head assembly. The inner cavity of the detection bench is fixedly connected with a driving cylinder. The utility model relates to the technical field of elevator rope head detection. According to the tensile detection device for the elevator rope head, the rope head assembly deforms to be bent, the two ends of the rope head assembly form arcs, at the moment, the connecting rod synchronously moves, the rotating seats are driven to rotate through the rack, the two rotating seats are driven to rotate towards the direction of the driving air cylinder at the same time, and the angle can be adjusted according to deformation rotation of the rope head assembly; the situation that the tail end falls off from the interior of the limiting block due to deformation when the rope head assembly is pulled can be effectively prevented, driving of an additional power source is not needed, and automatic adaptive adjustment is achieved when the rope head assembly is pulled by the pulling plate to deform.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator rope end detection, in particular to an elevator rope end tensile strength detection device. Background Art

[0002] In existing elevator technology, the elevator car and counterweight are primarily connected by a wire rope, which is driven by a traction machine to achieve the car's up and down movement. The ends of the elevator wire rope are connected to the elevator frame via a rope end device. In addition to securing the ends of the wire rope, the rope end device also uses springs to buffer vibrations during elevator operation and maintain wire rope tension.

[0003] When an existing elevator rope end fails during operation, it is easy to receive lateral tension or impact force. The existing elevator rope end detection equipment often only tests the tension force and cannot effectively test the lateral tension that the elevator rope end can withstand. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides an elevator rope end tensile testing device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an elevator rope end tensile test device, comprising a test platform, an inner cavity of the test platform is provided with an inner groove, the inner cavity of the inner groove is rotatably connected to a rotating seat extending to the surface of the test platform, the surface of the rotating seat is fixedly connected to a limit block for limiting the end of the rope head assembly, the inner cavity of the test platform is fixedly connected to a driving cylinder, one end of the driving cylinder piston rod is fixedly connected to a connecting rod extending to the inner cavity of the inner groove, one end of the connecting rod is fixedly connected to a rack, the surface of the rotating seat is provided with a tooth block meshing with the surface of the rack, and the surface of the driving cylinder piston rod is fixedly connected There is a pull plate, which passes through and extends to the top of the test bench. When in use, the rope head assembly is placed in the limit block for fixation, and then the pull plate is pulled by the driving cylinder to generate tension on the surface of the rope head assembly. At this time, the rope head assembly will be deformed and bent, and arcs will be formed at both ends. At this time, the connecting rod moves synchronously, and the rotating seat is driven to rotate through the rack, driving the two rotating seats to rotate in the direction of the driving cylinder at the same time, which can adapt to the deformation and rotation adjustment angle of the rope head assembly, and can effectively prevent the end from falling off from the inside of the limit block due to its deformation when the rope head assembly is pulled, and no additional power source is required to drive it. It automatically adapts and adjusts as the pull plate pulls the rope head assembly to deform.

[0006] As a further solution of the present invention: there are two rotating seats, which are symmetrically arranged on both sides of the inner groove with the driving cylinder as the center. The two ends of the rope head assembly are rotated synchronously by the setting of the two rotating seats to adapt to the curvature generated by its bending.

[0007] As a further solution of the present invention: a placement groove is provided on the surface of the limit block, and an embedded groove connected to the placement groove is provided in the inner cavity of the limit block. The embedded groove is obliquely arranged below the placement groove, and a limit groove is provided on the top of the embedded groove. When in use, the two ends of the rope head assembly are placed in the placement groove and then slide into the embedded groove. When tension is generated on the rope head assembly, under external force, the end of the rope head assembly enters the limiting groove and then abuts against the inner wall, so that the rope head assembly can be quickly fixed, effectively prevented from falling off, and can be quickly taken out after the test is completed.

[0008] As a further solution of the present invention: the lowest horizontal surface of the limit block is higher than the highest horizontal surface of the detection platform, which can effectively support the rope head assembly.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. In the present utility model, the rope head assembly will be deformed and bent, and arcs will be formed at both ends. At this time, the connecting rod moves synchronously, and the rotating seat is driven to rotate through the rack, driving the two rotating seats to rotate toward the direction of the driving cylinder at the same time, which can adapt to the deformation and rotation adjustment angle of the rope head assembly, and can effectively prevent the end from falling off from the inside of the limit block due to its deformation when the rope head assembly is pulled, and no additional power source is required. As the pull plate pulls the rope head assembly, it automatically adapts and adjusts when it deforms.

[0011] 2. In the present invention, when a pulling force is applied to the rope head assembly, the end of the rope head assembly enters the limiting groove and abuts against the inner wall under the external force, which can quickly fix the rope head assembly and effectively prevent it from falling off. It can also be quickly removed after the test is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a partial structural cross-sectional view of the utility model;

[0013] Figure 2 This is a schematic structural diagram of the limit block of the utility model.

[0014] In the figure: 1. Testing table; 2. Driving cylinder; 3. Rope head assembly; 4. Inner groove; 5. Rotating seat; 6. Limit block; 7. Rack; 8. Placement groove; 9. Embedded groove; 10. Limit groove; 11. Connecting rod; 12. Pull plate. DETAILED DESCRIPTION

[0015] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0016] See also Figure 1-2 The utility model provides a technical solution: an elevator rope end tensile testing device, comprising a testing platform 1, an inner groove 4 is provided in the inner cavity of the testing platform 1, the inner cavity of the inner groove 4 is rotatably connected to a rotating seat 5 extending to the surface of the testing platform 1, and the surface of the rotating seat 5 is fixedly connected to a limit block 6 for limiting the end of the rope head assembly 3, a driving cylinder 2 is fixedly connected to the inner cavity of the driving cylinder 2, one end of the piston rod of the driving cylinder 2 is fixedly connected to a connecting rod 11 extending to the inner cavity of the inner groove 4, one end of the connecting rod 11 is fixedly connected to a rack 7, a tooth block meshing with the surface of the rack 7 is provided on the surface of the rotating seat 5, and a pull plate 12 is fixedly connected to the surface of the piston rod of the driving cylinder 2, and the pull plate 12 penetrates and extends It extends to the top of the testing table 1. When in use, the rope end assembly 3 is placed in the limit block 6 for fixation, and then the pull plate 12 is pulled by the driving cylinder 2 to generate tension on the surface of the rope end assembly 3. At this time, the rope end assembly 3 will be deformed and bent, and an arc will be formed at both ends. At this time, the connecting rod 11 moves synchronously, and the rotating seat 5 is driven to rotate through the rack 7, driving the two rotating seats 5 to rotate in the direction of the driving cylinder 2 at the same time, which can adapt to the deformation and rotation adjustment angle of the rope end assembly 3, and can effectively prevent the end from falling off from the inside of the limit block 6 due to its deformation when the rope end assembly 3 is pulled, and no additional power source is required to drive it. As the pull plate 12 pulls the rope end assembly 3 to deform, it automatically adapts and adjusts.

[0017] There are two rotating seats 5, which are symmetrically arranged on both sides of the inner groove 4 with the driving cylinder 2 as the center. The two rotating seats 5 are used to synchronously rotate the two ends of the rope head assembly 3 to adapt to the curvature generated by its bending.

[0018] A placement groove 8 is provided on the surface of the limit block 6, and an embedded groove 9 connected to the placement groove 8 is provided in the inner cavity of the limit block 6. The embedded groove 9 is obliquely arranged below the placement groove 8, and a limiting groove 10 is provided on the top of the embedded groove 9. When in use, the two ends of the rope head assembly 3 are placed in the placement groove 8 and then slide into the embedded groove 9. When tension is generated on the rope head assembly 3, under the external force, the end of the rope head assembly 3 enters the limiting groove 10 and then abuts against the inner wall, which can quickly fix the rope head assembly 3 and effectively prevent it from falling off, and it can be quickly taken out after the test is completed.

[0019] The lowest level of the limiting block 6 is higher than the highest level of the detection platform 1 , which can effectively support the rope head assembly 3 .

[0020] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An elevator rope end tensile testing device, comprising a testing platform (1), characterized in that: The inner cavity of the detection platform (1) is provided with an inner groove (4), the inner cavity of the inner groove (4) is rotatably connected to a rotating seat (5) extending to the surface of the detection platform (1), the surface of the rotating seat (5) is fixedly connected to a limit block (6) for limiting the end of the rope head assembly (3), the inner cavity of the detection platform (1) is fixedly connected to a driving cylinder (2), one end of the piston rod of the driving cylinder (2) is fixedly connected to a connecting rod (11) extending to the inner cavity of the inner groove (4), one end of the connecting rod (11) is fixedly connected to a rack (7), the surface of the rotating seat (5) is provided with a tooth block meshing with the surface of the rack (7), the surface of the piston rod of the driving cylinder (2) is fixedly connected to a pull plate (12), and the pull plate (12) passes through and extends to the top of the detection platform (1).

2. The elevator rope end tensile testing device according to claim 1, characterized in that: Two rotating seats (5) are provided, and are symmetrically arranged on both sides of the inner groove (4) with the driving cylinder (2) as the center.

3. The elevator rope end tensile strength detection device according to claim 1, characterized in that: A placement groove (8) is provided on the surface of the limit block (6), an inner cavity of the limit block (6) is provided with an embedded groove (9) communicating with the placement groove (8), the embedded groove (9) is arranged obliquely below the placement groove (8), and a limit groove (10) is provided on the top of the embedded groove (9).

4. The elevator rope end tensile testing device according to claim 1, characterized in that: The lowest level of the limit block (6) is higher than the highest level of the detection platform (1).

Images