Pull rope detection device based on mechanics

Abstract

The utility model relates to a pull rope detection device based on mechanics, which comprises a support frame, a fixed clamping mechanism and a movable clamping mechanism which are arranged on the support frame and are opposite to each other, a sample rope conveying mechanism connected to the support frame, and a measurement sensor connected to the movable clamping mechanism, the fixed clamping mechanism is arranged between one ends of the two installation cross beams, the movable clamping mechanism is arranged between the other ends of the two installation cross beams in a sliding mode, the sample rope conveying mechanism comprises a material collecting roller and a material discharging roller, the material collecting roller and the material discharging roller are arranged at the two ends of the two installation cross beams respectively, and a sample rope penetrates through the space between the two installation cross beams. The device provided by the utility model can meet the test requirements of the safety rope with a larger length, and is convenient to use.

Description

Technical Field

[0001] This application relates to the technical field of tensile testing, and in particular to a mechanics-based rope testing device. Background Technology

[0002] A tensile testing machine clamps the specimen between two clamps, which move relative to each other. The force sensor located on the moving clamp and the displacement sensor built into the machine collect the changes in force and displacement during the test, thereby calculating various performance indicators of the specimen such as tensile strength, tearing strength, and deformation.

[0003] When conducting tensile tests on safety ropes, tensile testing machines typically clamp and fix both ends of the safety rope, then apply tension through a tension mechanism, and finally collect data through sensors. However, existing tensile testing machines are often not very large in size for ease of use, which limits the length of the target rope that can be measured. Since safety ropes are used in environments requiring greater length, existing tensile testing machines cannot meet the testing needs of longer safety ropes. Utility Model Content

[0004] The purpose of this application is to provide a mechanically based rope testing device that can meet the testing requirements of safety ropes of greater length, and the device is easy to use.

[0005] The mechanically based rope-pulling detection device provided in this application adopts the following technical solution:

[0006] A mechanics-based pull-rope testing device includes a support frame, a fixed clamping mechanism and a movable clamping mechanism disposed opposite to each other on the support frame, a sample rope conveying mechanism connected to the support frame, and a measuring sensor connected to the movable clamping mechanism. The support frame includes two vertically opposite mounting beams. The fixed clamping mechanism is disposed between one end of the two mounting beams, and the movable clamping mechanism is slidably disposed between the other ends of the two mounting beams. The sample rope conveying mechanism includes a take-up roller and a release roller, which are respectively disposed at both ends of the two mounting beams. The sample rope passes through the space between the two mounting beams.

[0007] As a preferred technical solution of this application, the support frame further includes a base, two columns connected to the base, two mounting beams connected between the two columns, and through holes for the sample rope to pass through on the columns, with the height of the through holes located between the two mounting beams.

[0008] As a preferred embodiment of this application, the receiving roller and the discharging roller are respectively connected to two columns and are at the same height as the through holes on the columns. A receiving motor is connected to the rotating shaft of the receiving roller.

[0009] As a preferred technical scheme of the present application, long strip-shaped through grooves are formed in the two mounting beams, the fixed clamping mechanism comprises an upper swing sector gear rotatably connected in the upper mounting beam through groove, a lower swing sector gear rotatably connected in the lower mounting beam through groove, and a driving member for driving the upper swing sector gear and the lower swing sector gear to swing synchronously and mesh.

[0010] As a preferred technical scheme of the present application, the movable clamping mechanism comprises a fixed seat fixed on the two mounting beams, a pushing rod connected to the fixed seat away from the fixed clamping mechanism, a sliding seat connected to the end of the pushing rod and slidably connected on the two mounting beams, and a movable clamping assembly connected to the sliding seat, the inside of the sliding seat is provided with a space for installing the movable clamping assembly and a channel for the sample rope to pass through, and a measuring sensor is connected between the fixed seat and the sliding seat.

[0011] As a preferred technical scheme of the present application, the sliding seat is set as a rectangular frame with the two mounting beams sleeved inside, and the top plate and the bottom plate are connected with the pushing rod.

[0012] As a preferred technical scheme of the present application, the movable clamping assembly comprises an upper driving cylinder connected perpendicularly to the top plate of the sliding seat, an upper zigzag clamping plate connected to the end of the upper driving cylinder, a lower driving cylinder connected perpendicularly to the bottom plate of the sliding seat, and a lower zigzag clamping plate connected to the end of the lower driving cylinder, the upper zigzag clamping plate and the lower zigzag clamping plate are located between the two mounting beams and can abut against each other or be separated.

[0013] In summary, the present application has at least one of the following beneficial technical effects:

[0014] 1. The device of the present application can detect the tension of a long safety rope without cutting the safety rope, preserving the integrity of the safety rope, and using the material receiving roller and the material releasing roller to cooperate during testing, releasing a section, testing a section, and receiving a section, which can test the safety rope more completely.

[0015] 2. The fixed clamping mechanism adopts the meshing structure of sector gears, which can clamp and fix the safety rope, facilitate the testing of the movable clamping mechanism, and also feed the safety rope forward during the rotation of the two sector gears. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the device of the embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the installation structure of the two clamping mechanisms in the embodiment of the present application;

[0018] In the figure, 1, support frame; 11, mounting beam; 12, base; 13, column; 2, fixed clamping mechanism; 21, upper swing sector tooth; 22, lower swing sector tooth; 23, driving piece; 3, movable clamping mechanism; 31, fixed seat; 32, push rod; 33, sliding seat; 34, upper driving cylinder; 35, upper sawtooth clamping plate; 36, lower driving cylinder; 37, lower sawtooth clamping plate; 4, sample rope conveying mechanism; 41, take-up roller; 42, pay-off roller; 43, mounting bracket; 5, measurement sensor. DETAILED DESCRIPTION

[0019] The following will be described in detail in combination with the accompanying drawings Figure 1 - the accompanying drawings Figure 2 The present application will be further described in detail.

[0020] Embodiment: The embodiment proposes a mechanical-based rope pulling detection device, referring to the accompanying drawings Figures 1-2 The device includes a support frame 1, a fixed clamping mechanism 2, a movable clamping mechanism 3, a sample rope conveying mechanism 4, and a measurement sensor 5. The fixed clamping mechanism 2 and the movable clamping mechanism 3 are arranged on the support frame 1. The fixed clamping mechanism 2 is used to clamp one end of the sample rope. The movable clamping mechanism 3 is used to clamp the other end of the sample rope and can move relative to the fixed clamping mechanism 2 to stretch the sample rope. The sample rope conveying mechanism 4 is installed on the support frame 1 and is used to convey the sample rope to move, facilitating the fixed clamping mechanism 2 and the movable clamping mechanism 3 to clamp the sample rope at different positions. The measurement sensor 5 is installed on the movable clamping mechanism 3.

[0021] The support frame includes two mounting beams 11, a base 12, and two columns 13. The base 12 is arranged as a rectangular plane plate. The columns 13 are arranged as square rods and are fixed vertically at both ends of the base 12. The two mounting beams 11 are connected oppositely between the two columns 13. The mounting beams 11 are also arranged as square rods. A channel for the sample rope to pass through is arranged between the two mounting beams 11. Through holes corresponding to the channel for the sample rope to pass through are opened on the two columns 13. Longitudinal through grooves are opened on the two mounting beams 11.

[0022] The fixed clamping mechanism 2 is arranged between one end of the two mounting beams 11, and comprises an upper swing sector gear 21, a lower swing sector gear 22 and a driving member 23. The upper swing sector gear 21 is in the shape of a 90° sector, and is rotatably connected to the two side walls of the through slot of the upper mounting beam 11 through a rotating shaft. The lower swing sector gear 22 is also in the shape of a 90° sector, and is rotatably connected to the rotating shafts of the upper swing sector gear 21 and the lower swing sector gear 22 through a rotating shaft, and is arranged on the two side walls of the through slot of the lower mounting beam 11. Two driving members 23 are arranged, and in this embodiment, the driving members 23 are servo motors, which drive the upper swing sector gear 21 and the lower swing sector gear 22 to swing synchronously. The rotating directions of the two driving members 23 are opposite, so that the two sector gears can be engaged or separated. When the upper swing sector gear 21 and the lower swing sector gear 22 are engaged, the sample rope is clamped, the tensile test is performed, the sample rope is loosened when the two sector gears are separated, and the sample rope is conveniently conveyed.

[0023] The movable clamping mechanism 3 is slidably arranged between the other end of the two mounting beams 11, and comprises a fixed seat 31, a push rod 32, a sliding seat 33 and a movable clamping assembly. The fixed seat 31 is fixed on the two mounting beams 11 away from the fixed clamping mechanism 2, and in this embodiment, the fixed seat 31 comprises two parts, the upper part is in the shape of a rectangular block and is fixed on the upper surface of the upper mounting beam 11, and the lower part is also in the shape of a rectangular block and is fixed on the lower surface of the lower mounting beam 11. Two push rods 32 are arranged, which are hydraulic cylinders and are respectively connected to the sides of the two parts of the fixed seat 31 away from the fixed clamping mechanism 2. The sliding seat 33 is connected to the piston rod end of the push rod 32, and is slidably connected to the two mounting beams 11. In this embodiment, the sliding seat 33 is in the shape of a rectangular frame in which the two mounting beams 11 are sleeved. The top plate and the bottom plate of the sliding seat 33 are thickened and protrude. The piston rods of the two push rods 32 are respectively connected to the side surfaces of the top plate and the bottom plate of the sliding seat 33. The measuring sensor 5 is connected to the sliding seat 33 and is connected to the fixed seat 31 through a spring.

[0024] The inside of the sliding seat 33 is provided with a space for installing a movable clamping assembly and a channel for the sample rope to pass through, and the movable clamping assembly comprises an upper driving cylinder 34, an upper serrated clamping plate 35, a lower driving cylinder 36 and a lower serrated clamping plate 37. The upper driving cylinder 34 and the lower driving cylinder 36 are hydraulic cylinders, the piston rod of the upper driving cylinder 34 is downward and vertically connected to the upper surface of the top plate of the sliding seat 33, the piston rod of the upper driving cylinder 34 passes through the top plate of the sliding seat 33 and the upper mounting beam 11 to the space between the two mounting beams 11, the lower driving cylinder 36 is arranged opposite to the upper driving cylinder 34, and the piston rod of the lower driving cylinder 36 passes through the bottom plate of the sliding seat 33 and the lower mounting beam 11 to the space between the two mounting beams 11; the upper serrated clamping plate 35 is fixed to the lower end of the piston rod of the upper driving cylinder 34, and the lower surface of the upper serrated clamping plate 35 is provided with serrated protrusions; the lower serrated clamping plate 37 is fixed to the upper end of the piston rod of the lower driving cylinder 36, and the upper surface of the lower serrated clamping plate 37 is provided with serrated protrusions and engages with the serrated protrusions of the upper serrated clamping plate 35; when the upper serrated clamping plate 35 and the lower serrated clamping plate 37 abut against each other, the sample rope is clamped, and when they are separated, the sample rope can be transported.

[0025] The sample rope conveying mechanism 4 comprises a take-up roller 41, a pay-off roller 42 and mounting frames 43, the mounting frames 43 are provided with two and are fixedly connected to the two upright columns 13 and located on the opposite sides of the two upright columns 13, the take-up roller 41 is mounted on the mounting frame 43 close to the fixed clamping mechanism 2 and opposite to the through hole in the upright column 13, and the pay-off roller 42 is mounted on the mounting frame 43 away from the fixed clamping mechanism 2 and opposite to the through hole in the upright column 13, the sample rope is output from the pay-off roller 42, passes through the upright column 13, passes through the space between the two mounting beams 11, passes through the upright column 13 again and is wound on the take-up roller 41, and a take-up motor is connected to the rotating shaft of the take-up roller 41 for driving the take-up roller 41 to rotate, and the take-up motor is a servo motor.

[0026] The implementation principle of the embodiment is that when the sample rope is detected, the sample rope is pulled from the pay-off roller 42, the end of the sample rope passes through the space between the upright column 13 and the mounting beam 11, the driving member 23 drives the two sector teeth to rotate to the meshing state and clamps the end of the sample rope, the sample rope is pulled straight from the pay-off side, the two driving cylinders are elongated, the sample rope is clamped by the two serrated clamping plates, the pushing rod 32 gradually applies a pushing force to the sliding seat 33, and the measurement sensor 5 collects data. After a section is measured, the sample rope is loosened, the measured part is wound on the take-up roller 41, and the detection of the next section of the sample is performed, and the process is repeated to detect the performance of a long length of safety rope.

[0027] The embodiments of the present application are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, wherein the same parts are denoted by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A mechanical based pull cord detection device, characterized by, The utility model provides a kind of sample rope measuring device, including support frame (1), be set to support frame (1) on opposite fixed clamping mechanism (2) and movable clamping mechanism (3), be connected on the sample rope conveying mechanism (4) of support frame (1) and be connected on the measuring sensor (5) of movable clamping mechanism (3), support frame (1) includes two installation cross beams (11) opposite up and down, fixed clamping mechanism (2) is arranged between one end of two installation cross beams (11), movable clamping mechanism (3) is slidably arranged between the other end of two installation cross beams (11), sample rope conveying mechanism (4) includes material receiving roller (41) and pay-off roller (42), material receiving roller (41) and pay-off roller (42) are arranged at the two ends of two installation cross beams (11) respectively, sample rope passes through the space between two installation cross beams (11).

2. The mechanical based pull cord detection device of claim 1, wherein, The support frame (1) further includes a base (12), two uprights (13) connected to the base (12), the two installation cross beams (11) are connected between the two uprights (13), the uprights (13) are provided with through holes through which the sample rope passes, and the height positions of the through holes are between the two installation cross beams (11).

3. The mechanical based pull cord detection device of claim 2, wherein, The material receiving roller (41) and the pay-off roller (42) are respectively connected to the two uprights (13) and are opposite in height to the through holes on the uprights (13), and a rotating shaft of the material receiving roller (41) is connected to a material receiving motor.

4. The mechanical based pull cord detection device of claim 1, wherein, Longitudinal grooves are formed in the two installation cross beams (11) and extend upward and downward, the fixed clamping mechanism (2) includes an upper swing sector gear (21) rotatably connected in the longitudinal groove of the upper installation cross beam (11), a lower swing sector gear (22) rotatably connected in the longitudinal groove of the lower installation cross beam (11), and a driving member (23) for driving the upper swing sector gear (21) and the lower swing sector gear (22) to swing synchronously and engage, the upper swing sector gear (21) and the lower swing sector gear (22) engage to clamp the sample rope and separate to loosen the sample rope.

5. The mechanical based pull cord detection device of claim 1, wherein, The movable clamping mechanism (3) includes a fixed seat (31) fixed on the two installation cross beams (11), a push rod (32) connected to the fixed seat (31) away from the fixed clamping mechanism (2), a sliding seat (33) connected to the end of the push rod (32) and slidably connected to the two installation cross beams (11), and a movable clamping assembly connected to the sliding seat (33), the inside of the sliding seat (33) is provided with a space for installing the movable clamping assembly and a passage for the sample rope to pass through, and the measuring sensor (5) is connected between the fixed seat (31) and the sliding seat (33).

6. The mechanical based pull cord detection device of claim 5, wherein, The sliding seat (33) is a rectangular frame in which the two installation cross beams (11) are sleeved, and the top plate and the bottom plate are connected to the push rod (32).

7. A mechanical based pull cord detection device according to claim 6, wherein, The movable clamping assembly includes an upper driving cylinder (34) perpendicularly connected to the top plate of the sliding seat (33), an upper serrated clamping plate (35) connected to the end of the upper driving cylinder (34), a lower driving cylinder (36) perpendicularly connected to the bottom plate of the sliding seat (33), and a lower serrated clamping plate (37) connected to the end of the lower driving cylinder (36), the upper serrated clamping plate (35) and the lower serrated clamping plate (37) are located between the two installation cross beams (11) and can abut against each other or separate.

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